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Vehicle complete fluid pressure turning drive bridge

A steering drive axle, full hydraulic technology, applied in the direction of hydraulic steering gear, steering mechanism, steering pull rod, etc., can solve the problems of reduced mechanical passability, large size of motor reducer, limited output force, etc., to achieve service life and performance. The effect of improving, simple and reasonable structure setting, good use and sealing performance

Active Publication Date: 2009-12-16
HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These requirements make the main reducer of the mechanical transmission drive axle bulky, large in mass, and large in inertia, which greatly reduces the ground clearance of the bridge and reduces the trafficability of the machinery.
[0007] 3. The gears are limited, the speed is limited, the output force is limited, the shifting is not smooth, and the impact is large
Compared with the mechanical transmission type drive axle, this kind of full hydraulic drive axle has the characteristics of high power density ratio, light weight, simple structure and convenient operation, but the motor reducer is slightly larger and it is difficult to realize the steering function.

Method used

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  • Vehicle complete fluid pressure turning drive bridge
  • Vehicle complete fluid pressure turning drive bridge
  • Vehicle complete fluid pressure turning drive bridge

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Embodiment Construction

[0028] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The fully hydraulic steering drive axle has four functions of complete machine transmission, walking, steering and braking. Including the axle housing 2, the cross-section of the axle housing 2 is a channel steel type, the opening faces forward, and the two ends of the axle housing are symmetrically arranged with upper and lower hinge seats to be hinged with the steering knuckle, wherein the upper hinge The seat is hinged with the steering knuckle by installing a high-pressure rotary joint, and the lower hinge seat is hinged with the lower hinge seat of the steering knuckle through a pin 8; the steering knuckle is connected with the hydraulic motor 7, and the hydraulic motor 7 is a low-speed high-torque hydraulic motor , is configured with the double-flow swash plate axial variable piston pump to form a hydraulic closed circuit; the front and rear of the h...

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Abstract

The invention relates to a vehicle full-hydraulic steering drive axle, which includes an axle housing, and steering knuckles are hinged at both ends of the axle housing. The steering knuckle is connected with a hydraulic motor, and a service brake and a parking brake are installed on the hydraulic motor. , which is characterized in that the two ends of the axle housing are hinged with the steering knuckle through the upper and lower hinge seats, wherein the upper hinge seat is hinged with the steering knuckle by installing a high-pressure rotary joint, and a double Piston rod hydraulic cylinder, the cylinder body of the double piston rod hydraulic cylinder is fixedly connected with the axle housing, the two piston rod ends of the double piston rod hydraulic cylinder are hinged with the steering rocker arms at the left and right ends, and the other end of the steering rocker arm One end is respectively hinged with the steering knuckles at both ends, and the steering knuckle is driven to swing left and right around the upper and lower hinge seats of the axle housing. The invention has the advantages of simple and reasonable structural arrangement, high power density ratio, large starting torque, stable low-speed operation, small turning radius and good performance; the connection of hydraulic pipelines is more reliable, and the use and sealing performance are better.

Description

technical field [0001] The invention relates to a vehicle full-hydraulic steering drive axle, which is especially suitable for steering and driving of special wheeled lifting transport vehicles. Background technique [0002] Special wheeled lifting transport machinery works in the environment of airports, ports, warehouses, ships, etc., loaded with precision and valuable equipment, requires stable operation, small turning radius to adapt to flexible movement in narrow venues, and must have sufficient climbing ability , to improve its passability, and to be able to self-drive on the transport plane through the boarding bridge during transfer transport. [0003] The drive axles used in this type of machinery are found in the literature in the following three situations: [0004] 1. Mechanical transmission steering drive axle. This method mainly has the following problems: [0005] 1. The structure of the system is complicated. The multi-stage gear shifting and shifting mech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D3/14B62D7/16
Inventor 谭学位胡晓涛徐代友朱楚才刘昌盛
Owner HUBEI SANJIANG SPACE WANSHAN SPECIAL VEHICLE
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