A kind of hydraulic shock absorber automatic pulling and pressing equipment and its control method

Abstract

The invention relates to an automatic pulling and pressing device for hydraulic dampers and a control method of the automatic pulling and pressing device and belongs to the technical field of damper overhauling. A rack of the equipment is provided with a human-computer interaction interface and is provided with a front sliding seat and a rear sliding seat, wherein the rack, the front sliding seatand the rear sliding seat form a sliding pair. Lockable sliding blocks are arranged below the front sliding seat and the rear sliding seat correspondingly, and the upper ends of the front sliding seatand the rear sliding seat are provided with limiting blocks correspondingly, wherein the limiting blocks are in a pair. The front sliding seat extends downwards to be provided with a lengthening connecting block. The lengthening connecting block is connected with the extending end of a lengthening piston rod. The rear sliding seat is connected with the extending end of a fixed-length piston rod.An oil supply pipeline of a lengthening hydraulic cylinder is provided with a lengthening electromagnetic valve, and an oil supply pipeline of a fixed-length hydraulic cylinder is provided with a fixed-length electromagnetic valve. The lengthening hydraulic cylinder and the fixed-length hydraulic cylinder are provided with displacement sensors correspondingly. The signal output ends of the displacement sensors and the communication end of the human-computer interaction interface are connected with the electromagnetic valves and the controlled ends of the lockable sliding blocks correspondinglythrough a control circuit. By the adoption of the automatic pulling and pressing device, control is convenient, time and labor are saved, safety and high efficiency are achieved, it can be ensured that various types of hydraulic dampers can be packaged and delivered out of a factory with the installation length, and therefore installation in the future is greatly facilitated.

Description

technical field [0001] The invention relates to a hydraulic tensioning and compressing equipment, in particular to an oil pressure shock absorber automatic tensioning and compressing equipment and a control method thereof, and also relates to the control method thereof, which belongs to the technical field of shock absorber maintenance. Background technique [0002] A high-speed train is equipped with various types of oil pressure shock absorbers with different installation lengths. These oil pressure shock absorbers are expected to be compressed to their corresponding installation lengths when they are packaged out of the warehouse. The existing technical problem is: different types of hydraulic shock absorbers have different placement lengths and installation lengths, and the damping force is also different. It is difficult for the operator to compress them to the required installation length. As a result, it needs to be assembled twice. The operation can meet the assembly...

AI Technical Summary

Problems solved by technology

The existing technical problem is: different types of hydraulic shock absorbers have different placement lengths and installation lengths, and the damping force is also different. It is difficult for the operator to compress them to the required installation length. As a result, it needs to be assembled twice. The operation can meet the assembly requirements and affect the assembly efficiency

In particular, it is time-consuming and labor-intensive to press the oil pressure shock absorber with a large damping force to the installation length, and there are also potential safety hazards

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