Pose detection device of cargo boom of mining excavator and control method

Abstract

The invention discloses a pose detection device of a cargo boom of a mining excavator and a control method. The detection device comprises a steel wire rope, a guide wheel, a balancing weight and a pull switch. One end of the steel wire rope is connected to the upper side wall of the cargo boom, and the other end of the steel wire rope crosses over the guide wheel and is connected with the upper end of the balancing weight. A 90-degree included angle is formed by the two segments, crossing over the guide wheel, of the steel wire rope. The guide wheel is fixedly mounted on the excavator. The lower end of the balancing weight is connected with the pull switch, and the balancing weight can move in the vertical direction. The pull switch is fixedly mounted on the excavator and is connected with the lower end of the excavator, and the pull switch is used for measuring the movement distance, in the vertical direction, of the excavator. According to the pose detection device of the cargo boomof the mining excavator and the control method, soft landing can be achieved after the cargo boom is jacked up, the number of times and amplitude that the cargo boom is jacked up can be effectively reduced, and the cargo boom, guy ropes and other mechanical structures can be prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of mining excavators, in particular to a detection device and a control method for a lifting arm 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 working principle diagram of a prior art mining excavator provided as an example. Such as figure 1 As shown, when the excavator starts digging, the bucket G1 is close to the working surface, and the starting point of excavation is located at the bottom of the working surface directly below the pushing mechanism. At this time, the angle between the bucket G1 and the working surface is 45° to 50°...

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned control method using the limit switch can only realize the soft landing function of the boom after the boom is jacked up, and cannot pre-control the boom to prevent the boom from being jacked up, and cannot effectively reduce the lifting load. The number and magnitude of the jib being jacked up, long-term operation will also cause damage to the jib, guy rope and other mechanical structures

Images