Mechanical attached safety protector for hydraulic compressor

Abstract

The invention discloses a mechanical attached safety protector for a hydraulic compressor. Two same mechanical attached safety protectors are symmetrically arranged on both inwardly concaved sides of a main sliding block of the hydraulic compressor, and bases thereof are fixedly connected with both inwardly concaved sides of a main sliding block of the hydraulic compressor. The mechanical attached safety protector also comprises an electric motor, a speed-reduction driving mechanism, a safety support post and an electric control circuit, wherein an output rotary shaft of the electric motor is fixedly connected with an input rotary shaft of the speed-reduction driving mechanism, an output rotary disc of the speed-reduction driving mechanism is fixedly connected with the safety support post by a connection rod, and the safety support post is in the vertical direction. Under the control of the electric control circuit, and when secondary safety protection is required, the left safety support post and the right safety support post can be rotated between the main sliding block and an edge-press sliding block to prevent severe safety accidents caused by the accidental and rapid downward movement of the edge-press sliding block.

Description

technical field [0001] The invention relates to a safety protection device for a hydraulic press, in particular to a mechanical additional safety protection device for a hydraulic press which uses a safety pillar to prevent safety accidents caused by the downward movement of the hydraulic press slider. Background technique [0002] The hydraulic press is mainly used for stamping and edge stretching of large parts. The working pressure is 17-20Mpa. The device sends the high-pressure water in the accumulator station to the corresponding hydraulic cylinder, thereby pushing the corresponding piston to make the main slider, edge holder slider, mobile worktable, ejector and locking device act. [0003] This kind of large-scale hydraulic press is typically represented by the 1600 / 2200-ton hydraulic press produced in China in the early years (manufactured by Shenyang Heavy Machinery Factory). It is mainly used to press boiler heads and chemical container heads, and can also complete...

AI Technical Summary

Problems solved by technology

The problems of this type of hydraulic machine are: (1) When loading and unloading part of the tooling mold, it is necessary to raise the main slider to a certain height and then stop, and then the operator enters the main slider to load and unload the mold. The position below the main slider, because only the hydraulic press is in a safe state, so once the electrical device of the hydraulic press fails or the sealing ring is damaged and leaks, the self-locking device of the valve will fail, which will lead to the failure of the 56-ton main slider and The main cylinder (the main slider weighs 38 tons and the main cylinder weighs 18 tons) moves down quickly until it hits the ground, causing the cylinder to fall off, and high-pressure water gushes out, seriously endangering the life safety of the operators under the main slider and the safety of surrounding equipment and facilities; (2) When loading and unloading tooling molds, the blank holder slider needs to be raised to a certain height, the main slider stops at the lowest position, and then 4 operators enter the main slider to load and unload molds. At this time, people are in the Within the closed area between the blank holder slider and the main slider, once the electrical device of the hydraulic press fails or the sealing ring is damaged and leaks, the self-locking device of the valve will fail, and the 48-ton blank holder slider will move down quickly until it is in contact with the main slider. The slider is closed, which seriously endangers the life safety of the personnel between the main slider and the blank holder slider; (3) During the normal movement process of the main slider and the blank holder slider of the hydraulic press, if there is a sudden power failure at this time, the The valve opened at the time will not be able to be closed through the control panel, and the slider will move down until it hits the ground, which will also cause safety hazards

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