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Anti-reverse control method of excavator slewing mechanism

A technology of slewing mechanism and control method, which is applied in the field of building data management, can solve problems such as hydraulic system impact, driver discomfort, adverse effects of structural strength, etc., and achieve the effect of improving braking stability and avoiding swaying

Inactive Publication Date: 2017-11-14
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combined effect of this inertial action and the blockage of the oil outlet of the hydraulic motor is to cause the reverse and swing of the hydraulic motor and the turntable, which has an adverse effect on the structural strength, impacts the hydraulic system, and brings discomfort to the driver.

Method used

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  • Anti-reverse control method of excavator slewing mechanism
  • Anti-reverse control method of excavator slewing mechanism
  • Anti-reverse control method of excavator slewing mechanism

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings.

[0039] see figure 2 , figure 2 It is a structural diagram of the anti-reversal principle of the slewing mechanism brake proposed by the present invention.

[0040] An anti-reverse control method for a slewing mechanism of an excavator, comprising the following steps:

[0041] The sensor device installed on the slewing mechanism of the excavator detects the parameters of the slewing mechanism;

[0042] Calculate the detected parameters, determine the timing of the brake reversal of the excavator, and output the control signal;

[0043] The control signal controls the throttle valve of the oil inlet and outlet of the hydraulic motor to open in good time.

[0044] Further, the sensor device arranged on the slewing mechanism of the excavator detects the slewing mechanism, specifically: the sensor device includes a rotational speed sensor and a rotational speed accele...

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Abstract

The invention discloses an anti-reversal control method for a slewing mechanism of an excavator, which comprises the following steps: a sensor device arranged on the slewing mechanism of the excavator detects parameters of the slewing mechanism; calculates the detected parameters, and determines the mechanism of the excavator; The control signal is output at the timing of reverse rotation; the control signal controls the throttle valve of the oil inlet and outlet of the hydraulic motor to open in good time. The present invention determines the timing of the brake reversal of the excavator through the sensor technology and logical operation, and outputs the control signal, so that the throttle valve is opened in due time, and the oil inlet and outlet of the hydraulic motor are connected, so that the swing of the rotary platform is avoided, and the stability of the platform is improved. Braking smoothness.

Description

technical field [0001] The invention relates to the field of building data management, in particular to an anti-reversal control method for a slewing mechanism of an excavator. Background technique [0002] The braking methods of the slewing mechanism of excavators can be divided into three categories: mechanical braking, pure hydraulic braking, hydraulic and mechanical combined braking. The choice of braking method is related to the working conditions of the excavator and the structure of the slewing hydraulic motor. [0003] Using pure mechanical brake, the braking torque is large, the braking time is short, and the work is reliable. When braking, the rotational kinetic energy of the turntable is almost completely converted into the friction heat energy of the mechanical brake, so that the temperature of the friction plate will rise without causing the hydraulic system. The temperature rises, but the structure of this braking method is complex, the volume is large, and th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/20E02F9/22
Inventor 惠记庄韩文鹏张泽宇代然郑恒玉胡浩陈兆鲁
Owner CHANGAN UNIV