Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GBT 26774-2011 Technical Specification for Car Transport Vehicles.
In addition to a number of editorial changes, the following technical changes have been made in this standard with respect to GB/T 26774-2011.
——The English name of the standard is modified;
——Scope of application is modified (see Chapter 1);
——Definitions of car carrier, goods vehicle for car carrier, trailer for car carrier and semi-trailer towing vehicle for car carrier in Chapter 3 are modified;
——Chapter and article structure of Chapter 4 is modified; "General provisions" (4.1 of Edition 2011) is modified as "General requirements" (refer to 4.1); "Working conditions" (4.2 of Edition 2011) is deleted; "Complete vehicle" (4.3 of Edition 2011) is modified as "Performance requirements" (refer to 4.2), "Structure requirements" (refer to 4.3), "Configuration requirements" (refer to 4.4) and "Process requirements" (refer to 4.5); "Special devices for car carriers" (4.4 of Edition 2011) is modified as "Requirements for goods platform" (refer to 4.6); and "Lifting device" (4.5 of Edition 2011) is modified as "Requirements for lifting device" (refer to 4.7);
——General requirements for the design, installation and match of towing vehicles and trailers (refer to 4.1.3 and 4.1.4) are added; the requirements for mass limit, clearance circle and out value of car carriers (refer to 4.1.6) are added; the requirements for transportation ambient temperature of vehicles [a) of 4.2 in Edition 2011] are deleted; and requirements for service road class of car carriers (refer to 4.1.7) are modified;
——The requirements for braking performance (refer to 4.2.1), dynamic performance (refer to 4.2.2), lateral stability (refer to 4.2.3) and running track (refer to 4.2.4) of car carrier are added;
——The requirements for interchangeability of mechanical coupling (refer to 4.3.1, 4.3.2, 4.3.3, 4.3.4 and 4.3.5) and interchangeability of electrical coupling (refer to 4.3.6) of car carriers are added; the requirements for lateral and rear underrun protections of car carriers (refer to 4.3.9) are added and the requirements for license plate (cracket) (refer to 4.3.10) are added;
——The requirements for satellite positioning on-board terminal (refer to 4.4.1), anti-lock braking system (refer to 4.4.2), tyre (refer to 4.4.3), dynamic balance of tyre (refer to 4.4.4), devices for indirect vision (refer to 4.4.5) and rear-marking plate of vehicle (refer to 4.4.7) are added and the requirements for fire extinguisher (refer to 4.4.8) are modified;
——The requirements for vertical distance between the uttermost end of protective barrier (mesh) and stamping position of the upper-layer goods platform (refer to 4.6.1) are modified; the requirements for selecting clamp device for car carriers (refer to 4.6.5) are added; and requirements for loading clearance of car carriers (refer to 4.6.6) are modified;
——The holding time for hydraulic system under 1.5 times of rated working pressure is modified [refer to d) of 4.7.7];
——Test methods for lateral stability of trains for car carrier are added (refer to 5.3), dynamic balance test methods for wheel (refer to 5.4) are added, test methods for automatic drop quantity of movable goods platform (refer to 5.5) are modified and high-voltage test methods for hydraulic system are deleted (5.3 of Edition 2011);
——Article No. of corresponding technical requirements for inspection items (refer to 6.1.2) are added;
——The requirements of type inspection (refer to 6.2) are modified;
——The requirements for vehicle sign board (see 7.2) are added;
——The requirements of "Accompanied documents shall include vehicle consistency certificate" [refer to a) of 8.1] are added;
——Storage requirements (refer to 8.3) are modified.
This standard was proposed by the Ministry of Industry and Information Technology.
This standard is under the jurisdiction of National Technical Committee on Automobiles of Standardization Administration of China (SAC/TC 114).
The previous edition of the standard replaced by this standard is as follows:
——GB/T 26774-2011.
Technical Specification for Car Carriers
1 Scope
This standard specifies terms and definitions, technical requirements, test methods, inspection rules and marking, accompanied documents, transportation, storage and the like of car carriers.
This standard is applicable to trucks, trailers and trains which can run on roads designed especially for transportation of passenger vehicles; dedicated vehicles for transporting other kinds of vehicles may also refer to the provisions of this standard.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 1589 Limits of Dimensions, Axle Load and Masses for Road Vehicles
GB 15741 The License Plates (Crackets) and its Position on Motor Vehicles and Trailer
GB/T 18411 Road Vehicle - Manufacturer’s Plate
GB/T 18505 Dynamic Balance Test Method for Motor Vehicle Tyres
GB/T 20070 Road Vehicles - Mechanical Coupling between Tractors and Semi-trailers - Interchangeability
GB 23254 Retro-reflective Markings for Trucks and Trailers
GB/T 23336 General Technical Requirements for Semitrailer
GB/T 25979 Road Vehicles - Heavy Commercial Vehicle Combinations and Articulated Buses - Lateral Stability Test Methods
GB 25990 Rear-marking Plates for Vehicles and Their Trailers
GB/T 31083 Technical Requirements of Tie-down Used in Passenger Car for Road Transportation
GB/T 31879 Road Vehicles - General Technical Requirements for Fifth Wheel
GB/T 32860 Road Vehicles - Interchangeability of Drawbar Couplings
GB/T 32861 Road Vehicles - Location of Electrical and Pneumatic Connections between Towing Vehicles and Trailers
JB/T 5943 Engineering Machinery General Technical Specifications for Weldments
JT/T 794 GNSS System for Operating Vehicles - Technical Specification for Vehicle Terminals
QC/T 252 Regulations of Type Approval Test for Special Automobile
ISO 11407 Commercial Road Vehicles - Mechanical Coupling between Towing Vehicles with Coupling Mounted forward and below, and Centre-axle Trailers - Interchangeability
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
car carrier
dedicated vehicles, such as trucks, trailers and trains designed especially for transporting passenger vehicles, which are equipped with a goods platform for loading, transporting and fixing vehicles, and a springboard for on-board and off-board of vehicles
3.2
goods vehicle for car carrier
dedicated vehicles modified on the shaped goods vehicle chassis, with a single or multi-layer goods platform(s) for loading and transporting passenger vehicles, which may also be equipped with related connecting devices to tow center-axle trailers
3.3
trailer for car carrier
dedicated trailers equipped with single or multi-layer goods platform(s) for loading and transporting passenger vehicles (including semi-trailer and center-axle trailer)
3.4
semi-trailer towing vehicle for car carrier
dedicated semi-trailer towing vehicles equipped with goods platform for loading and transporting passenger vehicles
3.5
articulated vehicle for car carrier
semi-trailer towing vehicle or a combination of semi-trailer towing vehicle for car carrier and semi-trailer for car carrier
3.6
center axle trailer train of car carrier
a combination of goods vehicle for car carrier and center-axle trailer for car carrier
4 Technical Requirements
4.1 General requirements
4.1.1 Car carriers shall be manufactured according to drawings and technical documents approved by the required procedures.
4.1.2 Purchased and outsourced parts shall meet the requirements of relevant standards and be provided with manufacturer's certificates, which shall not be used until passing the factory inspection of complete vehicle. All self-made parts and components shall not be used until passing the inspection.
4.1.3 The design and installation of towing vehicles and trailers shall ensure the reasonable match, reliable connection and the use safety of related electricity, gas, hydraulic pressure and their control.
4.1.4 In product technical documents of towing vehicles and trailers, such parameters as critical dimension and mass limit of outline and connection and the like adapting to trailer or towing vehicle shall be explicitly stated.
4.1.5 Semi-trailer for car carrier shall meet the requirements of GB/T 23336 and center-axle trailer shall refer to GB/T 23336.
4.1.6 The outline dimension, axle load and mass limit of car carrier as well as clearance circle, out value and the like shall meet the requirements of GB 1589.
4.1.7 The design of center axle trailer train of car carrier shall meet the driving requirements for second-class or above road.
4.2 Performance requirements
4.2.1 Braking performance of car carrier shall meet the requirements of GB 7258, GB 12676 and GB/T 13594.
4.2.2 Specific power of car carrier [maximum net power of engine/total mass of vehicle (train)] shall not be less than 5.4kW/t and maximum speed at full-load shall not be less than 90km/h.
4.2.3 Rear amplification coefficient of lateral acceleration of train for car carrier should not be greater than 2.0.
4.2.4 Where train for car carrier runs in straight line at speed of 30km/h on flat and dry road surface, the maximum offset between center line of rear axle wheelmark for trailers and that of front axle wheelmark for towing vehicles shall not be greater than 110mm.
4.3 Structure requirements
4.3.1 Semi-trailer towing vehicle shall be equipped with 50 fifth wheel meeting the requirements of GB/T 13880 and GB/T 31879 and 50 fifth wheel coupling pin in accordance with the requirements in GB/T 4606 and GB/T 15088 shall be adopted for semi-trailer for car carrier.
4.3.2 Interchangeability of mechanical coupling between semi-trailer towing vehicle and semi-trailer for car carrier shall meet the requirements of GB/T 20070.
4.3.3 Interchangeability of drawbar coupling between goods vehicle for car carrier and center-axle trailer for car carrier shall meet the requirements of GB/T 32860.
4.3.4 Interchangeability of mechanical coupling between goods vehicle for car carrier and center-axle trailer for car carrier shall meet the requirements of ISO 11407.
4.3.5 The distance between the towing ring center of center-axle trailer for car carrier and center of trailer axle or axle group shall not be greater than 7 300mm.
4.3.6 Such requirements as installation position, dimension and clearance space of electrical coupler between towing vehicle and trailer shall be in accordance with GB/T 32861.
4.3.7 All pipelines and circuits shall be distributed reasonably, fixed firmly and clamped reliably; frictional interference phenomenon shall not occur in the process of vehicle running; pipelines for oil, gas and water shall be free from leakage.
4.3.8 Under no-load conditions, the minimum ground clearance of car carrier shall not be less than 150mm.
4.3.9 Lateral and rear underrun protections for car carriers shall meet the requirements of GB 11567.1 and GB 11567.2.
4.3.10 The arrangement of license plate (cracket) shall meet the requirements of GB 15741 and GB 7258.
4.4 Configuration requirements
4.4.1 Semi-trailer towing vehicle, semi-trailer towing vehicle for car carrier and vehicle goods for car carrier shall be installed with satellite positioning on-board terminal in accordance with JT/T 794 as well as relevant standards.
4.4.2 Car carrier shall be equipped with anti-lock braking system meeting the requirements of GB/T 13594.
4.4.3 Car vehicle shall be provided with radial tyre; tubeless radial tyre or wide cross-section single tyre should be used; and sum of each tyre load shall meet the requirements of axle loading.
4.4.4 Before installation, all wheels of car carrier should be subjected to dynamic balance test and shall meet the requirements of the enterprise technical documents.
4.4.5 Car carrier shall be equipped with devices for indirect vision meeting the requirements of GB 15084.
4.4.6 Car carrier shall be equipped with external lighting and light-signalling devices meeting the requirements of GB 4785.
4.4.7 The installation and stick of vehicle body reflective marking shall meet the requirements of GB 23254 and GB 7258 and installation of rear-marking plate of vehicle shall meet the requirements of GB 25990 and GB 7258.
4.4.8 Goods vehicle for car carrier or train for car carrier shall be arranged with at least 2 fire extinguishers, which are in accordance with relevant fire protection requirements and not less than 5kg, and they shall be firmly fixed and convenient for taking and using.
4.4.9 The spare tyre shall be firmly fixed and convenient for assembly and disassembly.
4.5 Process requirements
4.5.1 Welding quality of welding parts shall meet the requirements of JB/T 5943; weld joint shall be flat, smooth, uniform and free from defects such as melting through, missing welding, crack, gas hole and slag. Welding slag shall be completely removed.
4.5.2 The riveting shall be firm in alignment; rivet head shall be free from any crack, deflection and incompletion; the clearance between rivet head and metal contact area shall not be greater than 0.05mm.
4.5.3 All fasteners shall be subjected to rust-proof treatment on the surface and each coupling part shall be firm and reliable.
4.5.4 Lubricating grease filler shall be completely assembled and filled with lubricating grease and other rubbing surfaces shall be coated with lubricating grease according to the requirements.
4.6 Requirements for goods platform
4.6.1 Protective barrier (mesh) shall be arranged on left and right sides of topside goods platform of car carrier, and the height between protective barrier (mesh) top and topside goods platform surface shall not be less than 800mm. At the binding operation position, vertical distance between the uttermost end of protective barrier (mesh) and stamping position of the upper-layer goods platform shall between 500~800mm.
4.6.2 Running passage for loaded vehicle of goods platform for car carrier shall be provided with anti-sliding function. When upper-layer movable goods platform completely falls into its position at no-load status, it shall fit closely with supporting base, however, a clearance not greater than 6mm at one side is permissible.
4.6.3 Transitional springboard connecting goods platform and ground shall be flexibly and reliably retracting and extending, whose width shall not be less than 380mm and the included angle with the ground shall not be greater than 12°.
4.6.4 Each movable part of goods platform shall be of flexible and reliable action, and free from blockage and interference phenomenon.
4.6.5 Car carrier shall be equipped with wheel stopping device to ensure no moving happen to loaded vehicles in case of parking as well as quick and effective clamp device for loaded vehicles; the clamp device should be selected in accordance with tie-down appliances specified in GB/T 31083.
4.6.6 On car carrier, the permissible outline dimension limit of loaded vehicle on each loading position shall be explicitly stated and the safety clearance between loaded vehicles shall be met. The minimum spacing in longitudinal direction between loaded vehicles, and between loaded vehicle and front and back ends of carriage and minimum vertical spacing between loaded vehicle top and upper-layer goods platform or lower end of ceiling all shall not be less than 100mm; the minimum vertical spacing between bottom of loaded vehicle and goods platform upper side shall not be less than 60mm; the minimum horizontal spacing between either side of loaded vehicle and inner side of car carrier shall not be less than 100mm; and the minimum horizontal spacing between either side of loaded vehicle and inner side of chassis wheelcover of car carrier shall not be less than 50mm.
4.6.7 The design of car carrier shall ensure the free access for the loaded vehicle driver.
4.6.8 Goods platform for vehicle parking shall be free from sharp corner and sharp edge which may cause stab or scratch on vehicle tyre.
Foreword i 1 Scope 2 Normative References 3 Terms and Definitions 4 Technical Requirements 5 Test Method 6 Inspection Rules 7 Marking 8 Accompanied Documents, Transportation and Storage
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GBT 26774-2011 Technical Specification for Car Transport Vehicles.
In addition to a number of editorial changes, the following technical changes have been made in this standard with respect to GB/T 26774-2011.
——The English name of the standard is modified;
——Scope of application is modified (see Chapter 1);
——Definitions of car carrier, goods vehicle for car carrier, trailer for car carrier and semi-trailer towing vehicle for car carrier in Chapter 3 are modified;
——Chapter and article structure of Chapter 4 is modified; "General provisions" (4.1 of Edition 2011) is modified as "General requirements" (refer to 4.1); "Working conditions" (4.2 of Edition 2011) is deleted; "Complete vehicle" (4.3 of Edition 2011) is modified as "Performance requirements" (refer to 4.2), "Structure requirements" (refer to 4.3), "Configuration requirements" (refer to 4.4) and "Process requirements" (refer to 4.5); "Special devices for car carriers" (4.4 of Edition 2011) is modified as "Requirements for goods platform" (refer to 4.6); and "Lifting device" (4.5 of Edition 2011) is modified as "Requirements for lifting device" (refer to 4.7);
——General requirements for the design, installation and match of towing vehicles and trailers (refer to 4.1.3 and 4.1.4) are added; the requirements for mass limit, clearance circle and out value of car carriers (refer to 4.1.6) are added; the requirements for transportation ambient temperature of vehicles [a) of 4.2 in Edition 2011] are deleted; and requirements for service road class of car carriers (refer to 4.1.7) are modified;
——The requirements for braking performance (refer to 4.2.1), dynamic performance (refer to 4.2.2), lateral stability (refer to 4.2.3) and running track (refer to 4.2.4) of car carrier are added;
——The requirements for interchangeability of mechanical coupling (refer to 4.3.1, 4.3.2, 4.3.3, 4.3.4 and 4.3.5) and interchangeability of electrical coupling (refer to 4.3.6) of car carriers are added; the requirements for lateral and rear underrun protections of car carriers (refer to 4.3.9) are added and the requirements for license plate (cracket) (refer to 4.3.10) are added;
——The requirements for satellite positioning on-board terminal (refer to 4.4.1), anti-lock braking system (refer to 4.4.2), tyre (refer to 4.4.3), dynamic balance of tyre (refer to 4.4.4), devices for indirect vision (refer to 4.4.5) and rear-marking plate of vehicle (refer to 4.4.7) are added and the requirements for fire extinguisher (refer to 4.4.8) are modified;
——The requirements for vertical distance between the uttermost end of protective barrier (mesh) and stamping position of the upper-layer goods platform (refer to 4.6.1) are modified; the requirements for selecting clamp device for car carriers (refer to 4.6.5) are added; and requirements for loading clearance of car carriers (refer to 4.6.6) are modified;
——The holding time for hydraulic system under 1.5 times of rated working pressure is modified [refer to d) of 4.7.7];
——Test methods for lateral stability of trains for car carrier are added (refer to 5.3), dynamic balance test methods for wheel (refer to 5.4) are added, test methods for automatic drop quantity of movable goods platform (refer to 5.5) are modified and high-voltage test methods for hydraulic system are deleted (5.3 of Edition 2011);
——Article No. of corresponding technical requirements for inspection items (refer to 6.1.2) are added;
——The requirements of type inspection (refer to 6.2) are modified;
——The requirements for vehicle sign board (see 7.2) are added;
——The requirements of "Accompanied documents shall include vehicle consistency certificate" [refer to a) of 8.1] are added;
——Storage requirements (refer to 8.3) are modified.
This standard was proposed by the Ministry of Industry and Information Technology.
This standard is under the jurisdiction of National Technical Committee on Automobiles of Standardization Administration of China (SAC/TC 114).
The previous edition of the standard replaced by this standard is as follows:
——GB/T 26774-2011.
Technical Specification for Car Carriers
1 Scope
This standard specifies terms and definitions, technical requirements, test methods, inspection rules and marking, accompanied documents, transportation, storage and the like of car carriers.
This standard is applicable to trucks, trailers and trains which can run on roads designed especially for transportation of passenger vehicles; dedicated vehicles for transporting other kinds of vehicles may also refer to the provisions of this standard.
2 Normative References
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 1589 Limits of Dimensions, Axle Load and Masses for Road Vehicles
GB/T 4606 Road Vehicles - 50 Semi-trailer Fifth Wheel Coupling Pin - Basic and Mounting/Interchangeability Dimensions
GB 4785 Prescription for Installation of the External Lighting and Light-signalling Devices for Motor Vehicles and Their Trailers
GB 7258 Safety Specifications for Motor Vehicles Operating on Roads
GB 11567.1 Motor Vehicles and Trailers - Lateral Protection Requirements
GB 11567.2 Motor Vehicles and Trailers - Rear Underrun Protection Requirements
GB 12676 Technical Requirements and Testing Methods for Commercial Vehicle and Trailer Braking Systems
GB/T 13594 Antilock Braking Performance and Test Procedure for Motor Vehicles and Their Trailers
GB/T 13880 Road Vehicles - Fifth Wheels - Interchangeability
GB 15084 Motor Vehicles - Devices for Indirect Vision - Requirements of Performance and Installation
GB/T 15088 Road Vehicles - Fifth Wheel Kingpins - Strength Test
GB 15741 The License Plates (Crackets) and its Position on Motor Vehicles and Trailer
GB/T 18411 Road Vehicle - Manufacturer’s Plate
GB/T 18505 Dynamic Balance Test Method for Motor Vehicle Tyres
GB/T 20070 Road Vehicles - Mechanical Coupling between Tractors and Semi-trailers - Interchangeability
GB 23254 Retro-reflective Markings for Trucks and Trailers
GB/T 23336 General Technical Requirements for Semitrailer
GB/T 25979 Road Vehicles - Heavy Commercial Vehicle Combinations and Articulated Buses - Lateral Stability Test Methods
GB 25990 Rear-marking Plates for Vehicles and Their Trailers
GB/T 31083 Technical Requirements of Tie-down Used in Passenger Car for Road Transportation
GB/T 31879 Road Vehicles - General Technical Requirements for Fifth Wheel
GB/T 32860 Road Vehicles - Interchangeability of Drawbar Couplings
GB/T 32861 Road Vehicles - Location of Electrical and Pneumatic Connections between Towing Vehicles and Trailers
JB/T 5943 Engineering Machinery General Technical Specifications for Weldments
JT/T 794 GNSS System for Operating Vehicles - Technical Specification for Vehicle Terminals
QC/T 252 Regulations of Type Approval Test for Special Automobile
ISO 11407 Commercial Road Vehicles - Mechanical Coupling between Towing Vehicles with Coupling Mounted forward and below, and Centre-axle Trailers - Interchangeability
3 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1
car carrier
dedicated vehicles, such as trucks, trailers and trains designed especially for transporting passenger vehicles, which are equipped with a goods platform for loading, transporting and fixing vehicles, and a springboard for on-board and off-board of vehicles
3.2
goods vehicle for car carrier
dedicated vehicles modified on the shaped goods vehicle chassis, with a single or multi-layer goods platform(s) for loading and transporting passenger vehicles, which may also be equipped with related connecting devices to tow center-axle trailers
3.3
trailer for car carrier
dedicated trailers equipped with single or multi-layer goods platform(s) for loading and transporting passenger vehicles (including semi-trailer and center-axle trailer)
3.4
semi-trailer towing vehicle for car carrier
dedicated semi-trailer towing vehicles equipped with goods platform for loading and transporting passenger vehicles
3.5
articulated vehicle for car carrier
semi-trailer towing vehicle or a combination of semi-trailer towing vehicle for car carrier and semi-trailer for car carrier
3.6
center axle trailer train of car carrier
a combination of goods vehicle for car carrier and center-axle trailer for car carrier
4 Technical Requirements
4.1 General requirements
4.1.1 Car carriers shall be manufactured according to drawings and technical documents approved by the required procedures.
4.1.2 Purchased and outsourced parts shall meet the requirements of relevant standards and be provided with manufacturer's certificates, which shall not be used until passing the factory inspection of complete vehicle. All self-made parts and components shall not be used until passing the inspection.
4.1.3 The design and installation of towing vehicles and trailers shall ensure the reasonable match, reliable connection and the use safety of related electricity, gas, hydraulic pressure and their control.
4.1.4 In product technical documents of towing vehicles and trailers, such parameters as critical dimension and mass limit of outline and connection and the like adapting to trailer or towing vehicle shall be explicitly stated.
4.1.5 Semi-trailer for car carrier shall meet the requirements of GB/T 23336 and center-axle trailer shall refer to GB/T 23336.
4.1.6 The outline dimension, axle load and mass limit of car carrier as well as clearance circle, out value and the like shall meet the requirements of GB 1589.
4.1.7 The design of center axle trailer train of car carrier shall meet the driving requirements for second-class or above road.
4.2 Performance requirements
4.2.1 Braking performance of car carrier shall meet the requirements of GB 7258, GB 12676 and GB/T 13594.
4.2.2 Specific power of car carrier [maximum net power of engine/total mass of vehicle (train)] shall not be less than 5.4kW/t and maximum speed at full-load shall not be less than 90km/h.
4.2.3 Rear amplification coefficient of lateral acceleration of train for car carrier should not be greater than 2.0.
4.2.4 Where train for car carrier runs in straight line at speed of 30km/h on flat and dry road surface, the maximum offset between center line of rear axle wheelmark for trailers and that of front axle wheelmark for towing vehicles shall not be greater than 110mm.
4.3 Structure requirements
4.3.1 Semi-trailer towing vehicle shall be equipped with 50 fifth wheel meeting the requirements of GB/T 13880 and GB/T 31879 and 50 fifth wheel coupling pin in accordance with the requirements in GB/T 4606 and GB/T 15088 shall be adopted for semi-trailer for car carrier.
4.3.2 Interchangeability of mechanical coupling between semi-trailer towing vehicle and semi-trailer for car carrier shall meet the requirements of GB/T 20070.
4.3.3 Interchangeability of drawbar coupling between goods vehicle for car carrier and center-axle trailer for car carrier shall meet the requirements of GB/T 32860.
4.3.4 Interchangeability of mechanical coupling between goods vehicle for car carrier and center-axle trailer for car carrier shall meet the requirements of ISO 11407.
4.3.5 The distance between the towing ring center of center-axle trailer for car carrier and center of trailer axle or axle group shall not be greater than 7 300mm.
4.3.6 Such requirements as installation position, dimension and clearance space of electrical coupler between towing vehicle and trailer shall be in accordance with GB/T 32861.
4.3.7 All pipelines and circuits shall be distributed reasonably, fixed firmly and clamped reliably; frictional interference phenomenon shall not occur in the process of vehicle running; pipelines for oil, gas and water shall be free from leakage.
4.3.8 Under no-load conditions, the minimum ground clearance of car carrier shall not be less than 150mm.
4.3.9 Lateral and rear underrun protections for car carriers shall meet the requirements of GB 11567.1 and GB 11567.2.
4.3.10 The arrangement of license plate (cracket) shall meet the requirements of GB 15741 and GB 7258.
4.4 Configuration requirements
4.4.1 Semi-trailer towing vehicle, semi-trailer towing vehicle for car carrier and vehicle goods for car carrier shall be installed with satellite positioning on-board terminal in accordance with JT/T 794 as well as relevant standards.
4.4.2 Car carrier shall be equipped with anti-lock braking system meeting the requirements of GB/T 13594.
4.4.3 Car vehicle shall be provided with radial tyre; tubeless radial tyre or wide cross-section single tyre should be used; and sum of each tyre load shall meet the requirements of axle loading.
4.4.4 Before installation, all wheels of car carrier should be subjected to dynamic balance test and shall meet the requirements of the enterprise technical documents.
4.4.5 Car carrier shall be equipped with devices for indirect vision meeting the requirements of GB 15084.
4.4.6 Car carrier shall be equipped with external lighting and light-signalling devices meeting the requirements of GB 4785.
4.4.7 The installation and stick of vehicle body reflective marking shall meet the requirements of GB 23254 and GB 7258 and installation of rear-marking plate of vehicle shall meet the requirements of GB 25990 and GB 7258.
4.4.8 Goods vehicle for car carrier or train for car carrier shall be arranged with at least 2 fire extinguishers, which are in accordance with relevant fire protection requirements and not less than 5kg, and they shall be firmly fixed and convenient for taking and using.
4.4.9 The spare tyre shall be firmly fixed and convenient for assembly and disassembly.
4.5 Process requirements
4.5.1 Welding quality of welding parts shall meet the requirements of JB/T 5943; weld joint shall be flat, smooth, uniform and free from defects such as melting through, missing welding, crack, gas hole and slag. Welding slag shall be completely removed.
4.5.2 The riveting shall be firm in alignment; rivet head shall be free from any crack, deflection and incompletion; the clearance between rivet head and metal contact area shall not be greater than 0.05mm.
4.5.3 All fasteners shall be subjected to rust-proof treatment on the surface and each coupling part shall be firm and reliable.
4.5.4 Lubricating grease filler shall be completely assembled and filled with lubricating grease and other rubbing surfaces shall be coated with lubricating grease according to the requirements.
4.6 Requirements for goods platform
4.6.1 Protective barrier (mesh) shall be arranged on left and right sides of topside goods platform of car carrier, and the height between protective barrier (mesh) top and topside goods platform surface shall not be less than 800mm. At the binding operation position, vertical distance between the uttermost end of protective barrier (mesh) and stamping position of the upper-layer goods platform shall between 500~800mm.
4.6.2 Running passage for loaded vehicle of goods platform for car carrier shall be provided with anti-sliding function. When upper-layer movable goods platform completely falls into its position at no-load status, it shall fit closely with supporting base, however, a clearance not greater than 6mm at one side is permissible.
4.6.3 Transitional springboard connecting goods platform and ground shall be flexibly and reliably retracting and extending, whose width shall not be less than 380mm and the included angle with the ground shall not be greater than 12°.
4.6.4 Each movable part of goods platform shall be of flexible and reliable action, and free from blockage and interference phenomenon.
4.6.5 Car carrier shall be equipped with wheel stopping device to ensure no moving happen to loaded vehicles in case of parking as well as quick and effective clamp device for loaded vehicles; the clamp device should be selected in accordance with tie-down appliances specified in GB/T 31083.
4.6.6 On car carrier, the permissible outline dimension limit of loaded vehicle on each loading position shall be explicitly stated and the safety clearance between loaded vehicles shall be met. The minimum spacing in longitudinal direction between loaded vehicles, and between loaded vehicle and front and back ends of carriage and minimum vertical spacing between loaded vehicle top and upper-layer goods platform or lower end of ceiling all shall not be less than 100mm; the minimum vertical spacing between bottom of loaded vehicle and goods platform upper side shall not be less than 60mm; the minimum horizontal spacing between either side of loaded vehicle and inner side of car carrier shall not be less than 100mm; and the minimum horizontal spacing between either side of loaded vehicle and inner side of chassis wheelcover of car carrier shall not be less than 50mm.
4.6.7 The design of car carrier shall ensure the free access for the loaded vehicle driver.
4.6.8 Goods platform for vehicle parking shall be free from sharp corner and sharp edge which may cause stab or scratch on vehicle tyre.
Contents of GB/T 26774-2016
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
5 Test Method
6 Inspection Rules
7 Marking
8 Accompanied Documents, Transportation and Storage
