Anti-dropping device for slide block of hydraulic press

Abstract

The invention discloses a hydraulic machine sliding block falling prevention device. Locking rods and brackets are fixed on a sliding block of a hydraulic machine; connection rods are connected to the brackets in a pivoting manner; one end of each connection rod is pivotally connected with the bottom of a telescopic rod, and the other end of each connection rod is clamped in a threaded tool withdrawal groove of a piston rod; one end of a spring in a stretching state is fixed on a point on each telescopic rod, and the other end of the spring is fixed on each connection rod; the tops of the telescopic rods are fixed on releasing frames; supporting seats are fixed on the lower surface of an upper cross beam of the hydraulic machine in a manner of forming upper openings and lower openings; the section of a containing space in the middle of each supporting seat is an inverted trapezoid; at least two wedges are put into each containing space; the locking rods penetrate through the centers of the wedges from the lower parts and extend out of the upper parts of the wedges; the upper ends of the supporting frames press against the wedges; supporting pins are fixed on the lower surfaces of the supporting seats, and the tail ends of the supporting pins are inserted into insertion slots of the supporting frames. The hydraulic machine sliding block falling prevention device disclosed by the invention has the advantages that the sliding block of the hydraulic machine can be locked in time when falling off from a piston rod of an oil cylinder, so that falling of the sliding block under the action of the gravity is prevented, and the production safety is guaranteed.

Description

technical field [0001] The invention belongs to a hydraulic machine safety device, in particular to a hydraulic machine slider anti-falling device. Background technique [0002] At present, the connecting device between the slider and the cylinder of the hydraulic press generally adopts an integral flange, the flange is connected with the piston rod of the cylinder through threads, and the flange is connected with the slider through a screw assembly. Due to the unbalanced load of the single-cylinder hydraulic press or improper maintenance of the connecting screws between the cylinder and the slider, it is easy to cause uneven tightness of the screws and uneven force. In this case, it is easy to cause the connecting screw to break or the connecting flange to break, and the slide block will fall under the action of its own weight, causing a safety accident. Light ones cause equipment damage and affect the normal production, and serious ones may cause casualties. Contents of...

AI Technical Summary

Problems solved by technology

Due to the partial load of the single-cylinder hydraulic press or improper maintenance of the connecting screws between the cylinder and the slider, it is easy to cause uneven tightness of the screws and uneven force.

In this case, it is easy to cause the connecting screw to break or the connecting flange to break, and the slider will fall under the action of its own weight, causing a safety accident.

In light cases, the damage to the equipment will affect the normal production, and in serious cases, it may cause casualties

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