Detail of GB/T 43608.1-2023

Introduction of GB/T 43608.1-2023

Building construction machinery and equipment - Truck mixers - Part 1: Terminology and commercial specifications 1 Scope This document defines terms and commercial specifications for truck mixers used for producing concrete or mortar and for delivering concrete, mortar or the materials of the mixture to worksites. This document is applicable to truck mixers that are either a) truck mounted, or b) semi‑trailer mounted. This document does not apply to ——fixed (stationary) mixers (see ISO 18650-1); ——turbo mixers (see ISO 18650‑1); ——concrete or mortar mixing plants (see ISO 19720‑1); ——small portable mixers (see ISO 18650‑1); ——purpose-built underground truck mixers; ——volumetric mixers (mobile concrete or mortar mixing plants). 2 Normative references The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements 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. ISO 1176 Road vehicles - Masses - Vocabulary and codes Note: GB/T 3730.2-1996, Road vehicles - Masses - Vocabulary and codes (idt ISO 1176:1990) 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1176 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: - IEC Electropedia: available at http://www.electropedia.org/ - ISO Online browsing platform: available at https://www.iso.org/obp 3.1 truck mixer drum‑shaped mixer device (3.2) mounted on a chassis capable of producing the mixture (3.20) and delivering the mixture or the materials of the mixture to worksites Note 1: The materials of the mixture (3.20) that can be delivered by a truck mixer include cement, aggregate (sand, gravel, stone) and rock before processing. 3.1.1 rear discharge type truck mixer truck mixer (3.1) where the discharge device (3.11) unloads the mixture (3.20) at the rear of the truck Note: See Annex A, Figures A.1 and A.2. 3.1.2 front discharge type truck mixer truck mixer (3.1) where the discharge device (3.11) unloads the mixture (3.20) at the front of the truck Note: See Figure A.3. 3.1.3 semi-trailer mounted mixer drum‑shaped truck mixer (3.1) where the mixer device (3.2) is mounted on a semi‑trailer chassis Note: See Figure A.4. 3.2 mixer device upper portion of truck mixer (3.1) (excluding the chassis) which is typically composed of a drum (3.3), basic frame (3.8), drum drive (3.12), roller pedestal (3.6), drive pedestal (3.7), charge device (3.10), discharge device (3.11) and control device (3.13) and water supply device (3.14). 3.3 drum vessel for mixing (3.19), agitating (3.17) and discharging concrete mixtures (3.20) or mortar 3.4 drum fin spiral-shaped projection fitted inside the drum (3.3) that mixes, agitates and directs the mixture (3.20) out of the drum (3.3) for discharge 3.5 Manhole; hatch access opening at the surface of the drum (3.3) which is fitted with a cover to allow the passage of authorized personnel for inspection and maintenance purposes 3.6 roller pedestal support structure for the drum (3.3) at its open side where a charge device (3.10) and a discharge device (3.11) are fitted 3.7 drive pedestal support structure for the drum (3.3) at its closed side where the drum drive (3.12) is fitted 3.8 basic frame structure connecting the roller pedestal (3.6) and the drive pedestal (3.7) for attachment of the mixer device (3.2) to the chassis Note 1: Certain types of truck mixers (3.1) are without a basic frame as the roller pedestal (3.6) and the drive pedestal (3.7) of the mixer device (3.2) are directly fixed to the truck chassis. Note 2: See Figure A.2. 3.9 working platform level surface on the truck mixer (3.1) for drum cleaning, maintenance and inspection 3.10 charge device receptacle (e.g., hopper) that takes in the charged mixture (3.20) transitorily and charges it to the drum (3.3) 3.11 discharge device components [specifically the discharge hopper (3.11.1) and chute system (3.11.2)] which receives and distributes the discharged mixture (3.20) 3.11.1 discharge hopper receptacle that receives the discharged mixture (3.20) from the drum (3.3) 3.11.2 chute system device(s) used to distribute the discharged mixture (3.20) to a desired location Note: Components in a chute system typically can include a swivel chute (3.11.2.1) with chute lock (3.11.2.4), flip-over chute (3.11.2.2) and extension chute(s) (3.11.2.3). 3.11.2.1 swivel chute conduit that can rotate and adjust vertically and swivel horizontally to deliver the discharged material to a desired location Note: See Annex B, Figure B.1. 3.11.2.2 flip-over chute folded extension chute (3.11.2.3) which is attached to the end of the swivel chute (3.11.2.1) 3.11.2.3 extension chute conduit which is attached to the end of the swivel chute (3.11.2.1) to deliver the mixture (3.20) to a desired distance Note: Chute system can include storage location for extension chute(s). 3.11.2.4 chute lock locking device capable of keeping the swivel chute (3.11.2.1) from unintended rotation 3.12 drum drive energy transmission device for the rotation of the drum (3.3) Note: This energy can be supplied by for example the truck engine PTO, a separate auxiliary engine, or an electrical drive. 3.13 control device elements for the control of the drum drive (3.12) Note: The control device is typically situated either in the cabin on the front discharge type truck mixer (3.1.2) or at the rear side of the drum (3.3) on the rear discharge type truck mixer (3.1.1). 3.14 water system water delivery system used for cleaning the truck mixer (3.1) Note 1: Components in the water system typically include water tank, pipes, hoses, valves and water pump. Note 2: The water system can also be used to add water to the mixture (3.20) on the construction site. 3.15 rated drum capacity maximum volume of mixture (3.20) the truck mixer (3.1) is designed for

Contents of GB/T 43608.1-2023