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Steering system for wheeled construction equipment

A technology for construction machinery and steering systems, applied to steering mechanisms, power steering mechanisms, fluid steering mechanisms, etc., can solve the problem that the steering system does not have linear drive restoring force, and achieve the effect of ensuring accuracy and reducing fatigue

Inactive Publication Date: 2014-08-13
VOLVO CONSTR EQUIP AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Based on this, since the force from the wheel 5 is not transmitted to the steering motor 2, there is a problem that the steering system has no linear drive restoring force

Method used

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  • Steering system for wheeled construction equipment
  • Steering system for wheeled construction equipment
  • Steering system for wheeled construction equipment

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Embodiment Construction

[0040] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Components defined in the description, such as specific structures and elements, are only specific details provided to help those of ordinary skill in the art fully understand the present invention, and the present invention is not limited to the embodiments disclosed below.

[0041] exist figure 2 with image 3 The steering system of the wheeled construction machine according to the embodiment of the present invention shown in includes,

[0042] a hydraulic pump 11, which is connected to an engine (not shown); a steering motor 12, which is connected to the hydraulic pump 11; a steering valve 13, which is installed on a flow path between the hydraulic pump 11 and the steering motor 12, for to control the driving of the steering motor 12; the steering handle 14, which operates the steering motor 12 and the steering valve 13 in response to the ope...

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PUM

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Abstract

Disclosed is a steering system which is capable of ensuring that a wheeled excavator travels straight while being driven on a paved road. The steering system for wheeled construction equipment includes: a hydraulic oil pump; a steering motor connected to the hydraulic oil pump; a steering valve controlling the operation of the steering motor; a steering handle operating the steering motor and the steering valve according to steering manipulation by the driver; and a steering cylinder steered by the manipulation of the steering handle. The steering system further includes an idle mode control unit. When working mode, in which working and driving are enabled, is selected, the idle mode control unit converts the working mode into a steering mode not having straight line driving recovery performance, and when an exclusive driving mode in which only driving is enabled is selected, the idle mode control unit converts the exclusive driving mode into a steering mode having the straight line driving recovery performance through a signal input.

Description

technical field [0001] The invention relates to a steering system of a wheeled construction machine. More particularly, the present invention relates to a steering system for a wheeled construction machine capable of ensuring that the wheeled excavator travels straight on a paved road. Background technique [0002] Generally speaking, wheeled construction machines can travel on paved roads and perform work tasks on construction sites. On construction sites, however, only steering systems suitable for the task are used. In other words, when the steering handle of the wheeled construction machine is operated, the driving and traveling directions of the machine are set. On the other hand, when the steering handle of the wheeled construction machine is not operated, the driving and traveling direction of the machine is fixed. [0003] Based on this, the accuracy of work is enhanced, and when the construction machine travels on an irregular road surface, shocks are not transmi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D5/07E02F9/20B62D5/06
CPCB62D5/062E02F9/225B62D5/093B62D6/007B62D5/064
Inventor 朴亨锡赵成容
Owner VOLVO CONSTR EQUIP AB