Sliding block balanced oil cylinder system without external pipeline

Abstract

The invention provides a sliding block balanced oil cylinder system without an external pipeline. The sliding block balanced oil cylinder system comprises a valve body and a sliding block, the valve body is fixedly connected with a cylinder rod of a plunger type cylinder directly through a flange, an inner cavity of the cylinder rod of the plunger type cylinder is a penetrating pipeline, and the pipeline is communicated with a magnetic ball valve in the valve body through the flange; the cylinder rod of the plunger type cylinder is sleeved with a cylinder body, the top end of the cylinder body is connected with the sliding block, and the tail end of the cylinder body is fixedly connected with an end cover through a gland cover. According to the sliding block balanced oil cylinder system without the external pipeline, the pipeline communicated with the cylinder rod of the plunger type cylinder is conductive with a valve block and the magnetic ball valve through the flange, high pressure oil produced due to the gravity of the sliding block or falling impact force directly enters the valve block through the pipeline in the plunger rod, whether oil drainage or locking is controlled through opening or closing of the magnetic ball valve, the strength and the integrity of the cylinder rod itself of the plunger type cylinder is utilized by the penetrating pipeline, the probability of leakage and pipe burst of the cylinder body connection part is effectively reduced, the advantages of being high in safety coefficient, good in explosion-proof property and the like are achieved, the structure is simple, the manufacturing cost is low, the practical performance is good, and the safety performance is high.

Description

technical field [0001] The invention relates to the design of an explosion-proof pipe for a balance oil cylinder system of a press, in particular to a slide block balance oil cylinder system without external pipelines. Background technique [0002] The balance cylinder of ordinary presses is mainly used to balance the gravity of the slider during work, and to prevent the slider from falling rapidly after a sudden external power failure through a normally closed electromagnetic ball valve. When the slider falls at a high speed, it will generate a large impact force, and the impact force will also generate a large pressure peak when it acts on the oil cylinder, which may exceed the bearing capacity of the pipeline. When the pressure exceeds the critical value, the oil pipe is prone to burst and other phenomena, causing catastrophic losses to people and equipment. This kind of piston balance oil cylinder generally has two oil inlet and outlet ports on ordinary presses, and is ...

AI Technical Summary

Problems solved by technology

When the slider falls at a high speed, it will generate a large impact force, and the impact force will also generate a large pressure peak when it acts on the oil cylinder, which may exceed the bearing capacity of the pipeline. When the pressure exceeds the critical value, the oil pipe is prone to burst and other phenomena, causing catastrophic losses to people and equipment

This kind of piston balance oil cylinder generally has two oil inlet and outlet ports on ordinary presses, and is generally connected to the valve block through flanges and pipes. Due to the use of ordinary hydraulic pipeline design connections, the welds between flanges and oil pipes are unstable. The increase of factors leads to a lower safety factor of the overall balance system

Images