Buffer special for heavy-duty hydraulic opening-closing device

Abstract

The invention discloses a buffer special for a heavy-duty hydraulic opening-closing device, and relates to opening-closing mechanisms of heavy-duty opening-closing devices. The buffer includes a cylinder tube of an energy accumulator, a cylinder tube of a hydraulic cylinder, a piston rod and a damping rod, a buffer hydraulic cylinder further includes a front end cover and a rear end cover, the front end of the cylinder tube of the energy accumulator and the front end of the cylinder tube of the hydraulic cylinder are connected to the front end cover, and the rear end of the cylinder tube of the energy accumulator and the rear end of the cylinder tube of the hydraulic cylinder are connected to the rear end cover; an energy accumulator piston is arranged between the cylinder tube of the energy accumulator and the cylinder tube of the hydraulic cylinder; a hydraulic cylinder piston is arranged in the cylinder tube of the hydraulic cylinder; a piston rod inner cavity is formed in the piston rod, and a piston rod through hole is formed in the rear end of the piston rod in a radial direction; the damping rod is connected to the rear end cover, the damping rod penetrates through the rearend cover and is arranged in the piston rod inner cavity, a plurality of damping holes are radially formed in the damping rod, and an oil delivery hole is radially formed in the position, penetratingthrough the rear end cover, of the damping rod; and a first oil filling opening and an energy accumulator inflation valve are arranged on the front end cover, and a rear end cover oil passage and a second oil filling opening are formed in the rear end cover. The buffering effect of the buffer is good.

Description

technical field [0001] The invention relates to an opening and closing mechanism of a heavy-duty opening and closing device, in particular to a buffer mechanism during opening and closing. Background technique [0002] With the rapid development of the country's economic construction, my country's manufacturing industry is also developing at a high speed. There are more and more heavy equipment and bigger and bigger. During the use of heavy equipment, due to the very large inertia of their parts, when the heavy cover is opened, The heavy-duty cover will fall due to gravity, and cause a large impact due to its own inertia, resulting in high noise, shortened equipment life, and equipment damage. Therefore, a buffer will be installed. The traditional buffer mainly has poor buffering effect, and an external connection is required. The oil circuit is easy to leak, the use effect is not obvious, there is no energy storage device, the inertia energy of the parts cannot be recovered, ...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the country's economic construction, my country's manufacturing industry is also developing at a high speed. There are more and more heavy equipment and bigger and bigger. During the use of heavy equipment, due to the very large inertia of their parts, when the heavy cover is opened, The heavy-duty cover plate will fall due to gravity, and cause a large impact due to its own inertia, resulting in high noise, shortened equipment life, and equipment damage. Therefore, a buffer will be installed. The traditional buffer mainly has poor buffering effect, and an external connection is required. The oil circuit is easy to leak, the use effect is not obvious, there is no energy storage device, the inertia energy of the parts cannot be recovered, and the structure is complicated.

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