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Track anti-slip control method, device and milling machine

A technology of slip control and control method, which is applied in the field of crawler anti-skid control and milling machine, and can solve the problems of hydraulic motor damage and manual anti-skid operation that cannot be performed in time

Active Publication Date: 2016-03-23
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide a crawler anti-skid control method, device and milling machine to solve the problems in the prior art that manual observation of skid occurrence is required, and manual anti-skid operation cannot be performed in time, resulting in damage to the hydraulic motor

Method used

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  • Track anti-slip control method, device and milling machine
  • Track anti-slip control method, device and milling machine
  • Track anti-slip control method, device and milling machine

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Embodiment Construction

[0034] Embodiments of the invention are described in detail below, but the invention can be practiced in many different ways as defined and covered by the claims.

[0035] In the Chinese utility model patent with the application number CN201120474723.7 titled "An Automatic Anti-skid Control Device for a Fully Hydraulic Tire Roller", an anti-skid control device is disclosed (please refer to its paragraph 0014). However, in this In the anti-skid control device, it calculates the current running speed of each driving wheel of the whole machine through the controller, and the display will prompt the current running speed of the whole machine. When the operator finds from the display that the rotation speed of the wheels on both sides is different due to the wheel slipping or suspension on one side of the whole machine, the operator needs to press the differential switch for automatic anti-skid. When the differential switch is pressed, the controller judges that the differential sw...

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Abstract

The invention provides a control method and device for preventing caterpillar bands from skidding and a milling machine. The control method for preventing the caterpillar bands from skidding includes the steps that the current revolving speeds of hydraulic motors corresponding to multiple caterpillar bands are obtained; whether skidding occurs or not is judged according to the current revolving speeds; under the situation that skidding occurs, the discharging capacity of the corresponding hydraulic motor of the caterpillar band which skids is reduced, and therefore system pressure is boosted and the caterpillar bands which do not skid can obtain driving force again. According to the control method and device for preventing the caterpillar bands from skidding and the milling machine, whether skidding occurs or not can be automatically judged according to the current revolving speeds of multiple hydraulic motors in real time, when skidding occurs, the discharging capacity of the hydraulic motor on the caterpillar band which skids is automatically reduced, and therefore the system pressure is boosted suddenly and the hydraulic motors of the caterpillar bands which do not skid can obtain the enough driving force again. Thus, the whole milling machine can recover to a continuous walking state and the problem that the hydraulic motor of the caterpillar band which skids is in a high-speed rotation state for a long time and is consequently heated and burnt is solved.

Description

technical field [0001] The invention relates to the field of track control, and more specifically, to a track anti-skid control method, device and milling machine. Background technique [0002] figure 1 A schematic structural view of a crawler mechanism in the prior art, especially a crawler mechanism of a milling machine is shown. [0003] Please refer to figure 1 and figure 2 , the crawler belt traveling mechanism includes a traveling hydraulic pump 1 , a hydraulic motor 2 , a speed reducer 3 , four crawler belts 4 and a diverter valve 5 . Wherein, each track 4 is equipped with a hydraulic motor 2, and the pressure oil output by the travel hydraulic pump 1 flows to each hydraulic motor 2 through the diverter valve 5, and then the corresponding hydraulic motor 2 drives the corresponding track 4 to move. [0004] When the track traveling mechanism is in the running mechanism, two slipping situations may occur: complete slipping or non-complete slipping. Among them, com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W30/00E01C23/088
CPCB60W30/18063B60W30/18172B60W2520/26B60W2710/09E01C23/088
Inventor 喻钢孟文雅金月康
Owner ZOOMLION HEAVY IND CO LTD
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