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Hydraulic control system of crawler tensioning device

A technology of hydraulic control system and tensioning device, which is applied to tracked vehicles, transportation and packaging, motor vehicles, etc., and can solve problems such as low accuracy and inability to meet the performance of crawler running devices

Active Publication Date: 2014-03-12
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of crawler tensioning device, its tension control is realized through manual inspection, completely depends on human experience for judgment, the accuracy is low, and it cannot meet the requirements of improving the performance of the crawler running device; and once the crawler is loose, the operator can only Inject butter into the cylinder 64' manually or start the machine to make the track reach the ideal tension state

Method used

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  • Hydraulic control system of crawler tensioning device
  • Hydraulic control system of crawler tensioning device
  • Hydraulic control system of crawler tensioning device

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0024] Such as Figure 2 to Figure 6 As shown, the present invention provides a crawler tensioning device, preferably, the crawler tensioning device is applied in an excavator, see in conjunction with figure 2 The vehicle chassis 2 of the excavator is provided with a driving wheel 1 and a track tensioning device, and the track tensioning device includes a tensioning mechanism, a guide wheel 8, a detection device and a control device 98, wherein the tensioning mechanism is arranged in the vehicle chassis 2 On the mounting plate 3; the guide wheel 8 is movably arranged on the tension mechanism and extends out of the vehicle chassis 2, the guide wheel 8 has a tension end, and is used for tension...

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Abstract

The invention provides a hydraulic control system of a crawler tensioning device. The system comprises a tensioning cylinder, a detecting device, a hydraulically driven oil filling mechanism and a control device, wherein the tensioning cylinder is provided with a moving end; the detecting device is arranged on the tensioning cylinder and is used for detecting the displacement of the moving end of the tensioning cylinder and generating a detecting result; the control device is electrically connected with the detecting device and the hydraulically driven oil filling mechanism and is used for sending a control signal to the hydraulically driven oil filling mechanism according to the detecting result; the hydraulically driven oil filling mechanism is connected with the tensioning cylinder and is used for filling oil into the tensioning cylinder according to the control signal to adjust the displacement of the moving end of the tensioning cylinder. By the technical scheme of the invention, the tensioning status of a crawler can be automatically fed back and timely adjusted, so that the crawler is in an ideal tensioning state.

Description

technical field [0001] The invention relates to engineering machinery, in particular to a hydraulic control system for a crawler tensioning device. Background technique [0002] Because of its advantages such as large traction force, low grounding ratio, strong climbing ability, and small turning radius, the crawler traveling device is widely used in large and medium-sized self-propelled machinery, such as excavators, road rollers, crawler cranes, drilling rigs and other engineering vehicles. During the use of the track tensioning device, its pre-tensioning force has a great influence on the running performance of the track. If the pre-tensioning force is too large, the rigidity of the track will be too large, the tensioning device will not be able to play a buffer role, and it will cause the track to walk The increase of mechanical internal friction will lead to the loss of engine power and accelerated wear of the track; too small pre-tensioning force will make the track lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D55/30
Inventor 刘泉刘民粟金发张江赵君敏
Owner ZOOMLION HEAVY IND CO LTD
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