Control device and control method of bucket opening mechanism of mining excavator

Abstract

The invention discloses a control device and a control method for a bucket opening mechanism of a mining excavator. The control device includes a first measurement module, a second measurement module, a third measurement module and a control module; the first measurement module is installed on the pushing reducer of the mining excavator, and the second measurement module is installed on the lifting gear of the mining excavator On the reducer, the third measurement module is installed on the bucket opening motor of the mining excavator, and the control module is respectively connected to the first measurement module, the second measurement module, the third measurement module and the bucket opening motor, and the control module controls and adjusts the bucket opening motor. speed and output torque. The bucket opening mechanism control device and control method of the mining excavator of the present invention can ensure that the deflection of the bucket opening wire rope is moderate, and avoid the shaking interference of the bucket opening wire rope; at the same time, when the arm is close to the bucket opening position, the bucket opening motor is controlled to enable high torque output mode, which can effectively reduce the bucket opening time, improve the bucket opening efficiency, and reduce the cycle time.

Description

technical field [0001] The invention relates to the technical field of mining excavators, in particular to a control device and a control method for a bucket opening mechanism of a mining excavator. Background technique [0002] During the excavation process of the mining excavator, the bucket is forced to move from bottom to top under the joint action of the hoisting rope and the pushing mechanism, and the blade of the bucket cuts off a layer of material during the process of cutting into the material to slide down into the bucket to complete the digging load of material. [0003] figure 1 A structural schematic diagram of a mining excavator in the prior art is provided as an example. Such as figure 1 As shown, the mining excavator includes a working platform, an A-frame, a boom, a stick, a bucket, a pushing mechanism, a lifting mechanism, a stay rope, a lifting wire rope, and a bucket opening mechanism, etc., and the pushing mechanism includes a pushing and pressing mec...

AI Technical Summary

Problems solved by technology

[0006] The bucket opening motor adopts a fixed torque output, which will cause a large deflection of the bucket opening wire rope due to gravity, so that the bucket opening wire rope will shake and interfere during the operation of the excavator; when the bucket is opened, the bucket opening wire rope corresponds to The position and length of the bucket cannot be determined, and the bucket opening motor is controlled by external adjustment, there may be a problem that the adjustment timing cannot be completely accurate, which will affect the bucket opening

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