QC/T 1126-2019 PDF EnglishUS$220.00 · In stock · Download in 9 seconds
QC/T 1126-2019: Automotive drive axle terminology and definition Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
QC/T 1126-2019: Automotive drive axle terminology and definition---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT1126-2019QC AUTOMOTIVE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040.50 T 21 Automotive drive axle terminology and definition ISSUED ON: NOVEMBER 11, 2019 IMPLEMENTED ON: APRIL 01, 2020 Issued by: Ministry of Industry and Information Technology of PRC. Table of ContentsForeword ... 7 1 Scope ... 8 2 Terms and definitions of drive axle and its main components ... 8 3 Terms and definitions of main technical parameters of drive axle ... 13 Automotive drive axle terminology and definition1 ScopeThis standard specifies the terms and definitions of automotive drive axles. This standard applies to automotive drive axle assemblies and their main components.2 Terms and definitions of drive axle and its maincomponents 2.1 Drive axle A device, which is composed of the final drive, differential, axle housing, axle shaft, located at the end of the transmission system, used to transmit power to the wheels. 2.1.1 Integral drive axle A drive axle, in which the axle shaft bushings and final drive housing are rigidly connected to the axle housing. 2.1.2 Disconnected drive axle A drive axle, in which the drive wheels on both sides can move as relative to the final drive, in a plane such as the transverse direction of the vehicle. 2.2 Final drive A device, which is usually located in the middle of the axle housing, to reduce the input power and transmit it to the axle shafts and wheels. 2.2.1 Single reduction final drive A final drive, which has only one pair of gear pairs for speed reduction. 2.2.2 Double reduction final drive A final drive, which has two pairs of gear pairs for speed reduction. 2.2.3 Thru-drive A final drive, that can transmit power to other final drivers, along the front or rear direction of the vehicle. 2.2.3.1 Single reduction thru-drive A thru-drive, which is composed of a pair of bevel gear pairs. 2.2.3.2 Double reduction thru-drive A thru-drive, which is composed of two pairs of gear pairs. 2.2.4 Two speed final drive A final drive, which has two reduction ratios and a set of shifting devices. 2.3 Hub reduction gear A mechanism, which is arranged at the wheel end, to reduce the speed and torque transmitted by the final drive AND then transfer it to the wheel. 2.3.1 Planetary hub reduction gear A hub reduction gear, which is composed of a planetary cylindrical gear mechanism. 2.3.2 Differential geared wheel reductor 2.4.3 Inter-wheel differential A differential, that acts as a differential between the wheels of the drive axle. 2.4.4 Inter-axle differential A differential, that acts as a differential between the drive axles. 2.5 Axle housing A component, which is equipped with final drive, axle shaft and other parts, can also support the gravity load of the vehicle mass, transmit various forces on the wheels to the components of the vehicle frame or body, through the suspension system. 2.5.1 Banjo axle housing An axle housing, which is manufactured separately from the final drive housing and bolted together. 2.5.1.1 Cast rigid axle housing Axle housing, whose body is casted. 2.5.1.2 Punching-welded axle housing Axle housing, whose body is a welded part after stamping the plate. 2.5.1.3 Bulge-forming axle housing Axle housing, whose body is formed by expanding the steel tube. 2.5.2 Trumpet-type axle housing Axle housing, which is cast integrally with the final drive housing AND bolted at the joints of two or more castings to form an integral axle housing. 2.5.3 Unitized carrier-type axle housing Axle housing, which is cast integrally with the final drive housing AND fixed by pressing both ends into the axle tube. 2.6 Axle shaft A shaft, that transmits the torque from the differential or final reducer to the wheel or hub reduction gear’s driving gear (some also bear bending moments). 2.6.1 Full-floating axle shaft An axle shaft, that transmits only torque. 2.6.2 Semi-floating axle shaft An axle shaft, that transmits torque and bears bending moments.3 Terms and definitions of main technical parameters ofdrive axle 3.1 Drive axle maximum input torque A torque, which is transmitted to the input end of the final drive, as calculated based on the maximum net output torque of the power source, the lowest gear of the transmission, the low gear reduction ratio of the transfer case (excluding transmission efficiency). 3.2 Slip torque The torque, when the drive wheel slips, which is the product of the rated axle load of the drive axle, the maximum adhesion coefficient, the rolling radius of the wheel. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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