Nine-shaft automobile chassis crane and steering control system thereof

An automobile chassis and steering control technology, applied in the field of automobile control systems, can solve the problems of unstable bending, sudden increase in the force of the tie rod assembly, shortening the service life of tires, etc. The effect of avoiding abnormal wear

Inactive Publication Date: 2012-06-20
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] According to the above structure, if one of the wheels on the first to fifth steering shafts is stuck by an obstacle, the system pressure of the hydraulic power steering system will rise to the maximum design pressure value of the system in an extreme period of time. The reaction of the power steering cylinder will cause a sudden increase in the force of each tie rod assembly in the tie rod steering tra

Method used

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  • Nine-shaft automobile chassis crane and steering control system thereof
  • Nine-shaft automobile chassis crane and steering control system thereof
  • Nine-shaft automobile chassis crane and steering control system thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example one:

[0032] See figure 1 , The steering control system of the nine-axis automobile chassis crane includes a tie-rod steering transmission mechanism that controls the steering of the corresponding wheels on the first to fifth steering shafts and a hydraulic power steering system.

[0033] The tie rod steering transmission mechanism includes first, second, and third rocker arms 11, 12, 13 and tie rod assemblies, as well as a first auxiliary rocker arm 31 and an auxiliary tie rod assembly. The tie rod assemblies include first, second, and third rocker arms. , The fourth and fifth tie rod assemblies 21, 22, 23, 24, and 25, the auxiliary tie rod assembly includes first, second and third auxiliary tie rod assemblies 41, 42 and 43.

[0034] The first rocker arm 11 is arranged between the first and second steering shafts L1 and L2, the middle part of which is hinged to the chassis of the nine-axis automobile, and the second rocker arm 12 is arranged between the third and fou...

Example Embodiment

[0042] Embodiment two:

[0043] See figure 2 The difference between this embodiment and the first embodiment is:

[0044] The second rocker arm 12 of the steering control system is arranged between the second and third steering shafts L2, L3, the third rocker arm 13 is arranged between the fourth and fifth steering shafts L4, L5, and the first auxiliary rocker arm 31 is provided between the third and fourth steering shafts L3 and L4.

[0045] One end of the third tie rod assembly 23 is hinged with the lower part of the second rocker arm 12, and the other end is hinged with the steering knuckle arm on the third steering shaft; one end of the fourth and fifth tie rod assemblies 24 and 25 are respectively connected to the third rocker arm 13 The lower part is hinged, and the other end is hinged to the steering knuckle arms on the fourth and fifth steering shafts L4 and L5 respectively; one end of the first and second auxiliary tie rod assemblies 41, 42 is hinged to the lower part of t...

Example Embodiment

[0047] Embodiment three:

[0048] See image 3 The difference between this embodiment and the second embodiment is:

[0049] One end of the first tie rod assembly 21 of the steering control system is hinged with the lower part of the first rocker arm 11, and the other end is hinged with the steering knuckle arm on the first steering shaft L1; one end of the second and third tie rod assemblies 22, 23 It is hinged with the lower part of the second rocker arm 12, and the other end is hinged with the steering knuckle arms on the second and third steering shafts L2 and L3, respectively. The other structures and connection relationships of this embodiment are the same as those of the second embodiment.

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PUM

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Abstract

The invention discloses a steering control system of a nine-shaft automobile chassis crane. The steering control system comprises a pull rod type steering transmission mechanism and a hydraulic power-assisted steering system, wherein the pull rod type steering transmission mechanism is used for controlling corresponding wheels on a first steering shaft, a second steering shaft, a third steering shaft, a fourth steering shaft and a fifth steering shaft to steer; the pull rod type steering transmission mechanism comprises a first rocker arm, a second rocker arm and a third rocker arm which are respectively used for controlling the wheels on the corresponding steering shafts to steer through a pull rod assembly; and the pull rod type steering transmission mechanism also comprises a first auxiliary rocker arm and an auxiliary pull rod assembly, the first auxiliary rock arm is arranged between any two adjacent rocker arms in the three rocker arms, and the auxiliary pull rod assembly is used for sequentially hinging the three rocker arms and the first auxiliary rocker arm. By using the steering control system, the condition that parts of the pull rod assembly are overlong is avoided, and the phenomenon that parts of the pull rod assembly is instable and bent can be effectively prevented; and furthermore, the safety performance in operating vehicles is improved on the basis of avoiding the abnormal wearing of a tire. On the basis, the invention also provides a nine-shaft automobile chassis crane with the steering control system.

Description

technical field [0001] The invention relates to an automobile control system, in particular to a nine-axle automobile chassis crane and a steering control system thereof. Background technique [0002] Super-large tonnage truck chassis cranes have a long body and a large load capacity, so they generally use multi-axle chassis. For example, Liebherr's 1,200-ton crane LTM11200 and Demag's 1,200-ton crane AC1000 all use nine-axle chassis. As the name implies, the chassis of a nine-axle car has nine steering shafts. Hereinafter, the nine steering shafts are defined as the first steering shaft L1, the second steering shaft L2, the third steering shaft L3, and the fourth steering shaft from the front to the rear of the car. L4, fifth steering shaft L5, sixth steering shaft L6, seventh steering shaft L7, eighth steering shaft L8, and ninth steering shaft L9. The chassis multi-axle (axle) steering technology is the key technology to improve the handling stability, curve passing abil...

Claims

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Application Information

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IPC IPC(8): B62D7/16B62D5/06
Inventor 朱亚夫王志芳李丽朱磊刘东宏曹光光王东华
Owner XUZHOU HEAVY MASCH CO LTD
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