Four-wheel steering control system of backhoe loader

A backhoe loader and four-wheel steering technology, applied in the field of steering systems, can solve problems such as failure to realize four-wheel steering, and achieve the effect of guiding operations

Inactive Publication Date: 2015-02-18
JIANGSU LIUGONG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of four-wheel steering technology has not been realized in backhoe loader products

Method used

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  • Four-wheel steering control system of backhoe loader
  • Four-wheel steering control system of backhoe loader

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Experimental program
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Embodiment Construction

[0019] The present invention will be further described below in conjunction with drawings and embodiments.

[0020] Such as figure 1 As shown, a backhoe loader four-wheel steering control system includes a front axle 1, a rear axle 2, a front axle steering gear 3 and a steering booster 4, and the front axle steering gear 3 drives the wheels on both sides of the front axle 1 to swing To achieve steering, the steering booster 4 is connected to the front axle steering gear 3 to provide driving force; the rear axle 2 is provided with a rear axle steering gear 5, and the front axle steering gear 3 and the rear axle steering gear 5 are converted by mode The solenoid valve 6 is connected with the power steering 4; the front axle steering gear 3 is provided with a front axle neutral sensor 7, and the rear axle steering gear 5 is provided with a rear axle neutral sensor 8; The sensor 7 and the rear axle neutral position sensor 8 are connected to the control module 9, and the control m...

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PUM

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Abstract

The invention relates to a four-wheel steering control system of a backhoe loader. The four-wheel steering control system comprises a front axle, a rear axle, a front axle steering gear and a steering booster, wherein the front axle steering gear drives wheels on the two sides of the front axle to swing so as to realize steering, and the steering booster is connected with the front axle steering gear to provide a driving force; a rear axle steering gear is arranged on the rear axle, and the front axle steering gear and the rear axle steering gear are connected with the steering booster through a mode conversion solenoid valve; a front axle neutral-position sensor is arranged on the front axle steering gear, and a rear axle neutral-position sensor is arranged on the rear axle steering gear; the front axle neutral-position sensor and the rear axle neutral-position sensor are connected with a control module, and the control module is connected with a steering mode selection switch; the steering mode selection switch controls the switching of the mode conversion solenoid valve through the control module. The four-wheel steering control system can avoid the safety problem caused by improper operation of an operator, while an indicator light can intuitively display the current steering mode of a vehicle, and the operation of the operator is guided well.

Description

technical field [0001] The invention relates to a steering system of an engineering vehicle, in particular to a four-wheel steering control system of an excavating loader. Background technique [0002] At present, most domestic construction machinery adopts articulated frame or integral frame, articulated frame usually adopts articulated steering, and integral frame is divided into front wheel steering and rear wheel steering. However, when working in a small site, due to the small site, it is difficult for the whole machine to turn and transition, and it needs multiple adjustments, resulting in low work efficiency and high fuel consumption. [0003] The backhoe loader is commonly known as the busy at both ends. Its front end is equipped with a loading end, and its rear end is equipped with an excavation end. It adopts an integral frame. When turning, the front wheel is used as the steering wheel to deflect at a certain angle to realize the steering. However, since the fron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D7/14B62D5/06
CPCB62D5/06B62D7/1572
Inventor 张国新李祥
Owner JIANGSU LIUGONG MACHINERY
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