RU2049686C1 - Drive of automobile primary axle - Google Patents

Abstract

FIELD: transport engineering. SUBSTANCE: drive of automobile primary axle is provided with one more driven gear, prismatic bushing with outer outline of octahedral form and a bearing mounted in the center of mentioned bushing for interaction with the gear mounted on a differential body. Additional driven gear is mounted symmetrically regarding drive gear. Prismatic bushing is mounted on a shaft between driven bearings. EFFECT: enhanced efficiency. 2 cl, 1 dwg

Description

 The invention relates to a motor vehicle, and in particular to a drive of its driving axle, providing transmission of traction on the axle shaft of the bridge.

 Known designs of drives of the drive axle for cars [1] where the traction on the axle shaft of the bridge is transmitted by the drive gear through the driven gear coupled to one of the axle axles of the bridge, and then through the differential to the other axle shaft and the structure for trucks [2] where the force it is transmitted by the same drive gear wheel also through the driven gear, mounted on the intermediate axis and the rotating gear, paired with another pressed onto the differential housing, with the help of which the transmission of power I was on a half-bridge.

 The disadvantage of these known drives is that they maintain a constant inextricable connection between the drive transmission and the drive axle of the car, which does not allow to obtain the full effect of the use of kinetic energy accumulated by the machine when the machine moves in the coast mode.

 The aim of the invention is to eliminate the losses of the largest part of machine kinetics allowed by the design of the drives used, and to create a form of communication between the drive and the ramp, in which they could be disconnected from each other in necessary cases, i.e. so that the entire charge of machine kinetics is used for its intended purpose.

 The drawing shows a diagram of the drive.

 The proposed drive scheme, while retaining the idea of connecting the cardan to the bridge, according to the scheme of the ZIL 431410 motor vehicle, is made in another embodiment, which ensures that the drive is disconnected from the bridge when the machine maneuvers "coasting".

 To this end, this scheme provides for the installation at the ends of the shaft 3 of two driven gears 2 instead of one, connected by engagement with the drive gear, which freely rotate on their roller bearings in opposite directions, which is used to ensure the machine travels in the "forward" and " back. "

 On the same shaft 3, driven gears 2 are mounted on roller bearings a prismatic sleeve 6 having an octagonal shape on the outer contour, in the center of which gear 4 is mounted on a tight fit, gearing with another differential 8 mounted on the housing, with the help of which traction is transmitted to both axles of the bridge.

 In addition, on the prismatic sleeve 6 on both lateral planes of the gear 4, two disks 5 are freely seated, with beveled teeth cut into the lateral planes of the two and facing the driven gears 2, and when the engines move to their driven gears, they engage with teeth the same teeth on the planes of the driven gears and thereby carry out the process of connecting the drive to the drive axle. Depending on which drive is given a command to enter the gearing with the driven gear, the direction of travel of the machine "forward" and "back" is determined. The disk, which carries out the process of moving the machine “forward”, is constantly engaged with its driven gear under spring pressure 7 and disengages using pneumatics, and the reverse disk is constantly disconnected from its driven gear and pressed by the springs to the plane of gear 4 in the center and only in the reverse maneuver of the machine does pneumatic gearing engage the driven gear.

 To bring the machine into neutral position, press both disks 5 against the lateral planes of gear 4, then a gap is formed between the teeth of the disks and the driven gear, and thus the drive will be disconnected from the drive axle. In this case, the machine may be braked to a halt or continue to move in the "coasting" mode, and the drive, freed from the bridge, will continue to work in idle mode.

 In addition, the use of a drive of this design causes a reduction in the operating functions of the gearbox, behind which only high-speed step changes remain, since a change in the direction of travel of the machine becomes the function of a new drive.

Claims (2)

 1. A drive of a driving axle of a vehicle, comprising a gear of a main gear, at least one driven gear of this gear mounted on a shaft through bearings, a differential and two axles of a bridge kinematically connected to a driving gear through a driven gear, a shaft and a differential, characterized in that it contains a second driven gear mounted respectively through bearings on the shaft, while both driven gears are installed symmetrically with respect to the drive gear, a prismatic sleeve made with an outer contour ohm octagonal shape and mounted on the shaft through the bearings between the driven gears, gear arranged in the central part of the sleeve parallel to a tight fit and to be engaged with a gear mounted on the differential housing, for transmitting the driving force on the half-bridge.  2. The drive according to claim 1, characterized in that on the prismatic sleeve on both ends of the gears there are two disks mounted for movement on it, on the side planes of which teeth are made facing the driven gears, which are made with reciprocal teeth for the possibility of engagement with said teeth of the disks, one of which is spring-loaded in the direction of engagement with the teeth of the corresponding gear.

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