Connection method and device of double-cylinder back-pull type hydraulic machine and arc door

Abstract

The invention discloses connection method and device of a double-cylinder back-pull type hydraulic machine and an arc door. According to the device, a double-cylinder back-pull type hydraulic machineand an arc door are involved, a connecting device is additionally arranged between a lifting head of the double-cylinder back-pull type hydraulic machine and a side beam of the arc door, the side beamis of a double-web structure, an end plate is welded to the end part of the double-web structure, arc door lifting lug plates are symmetrically welded to the two sides of the double-web structure, the connecting device is composed of double connecting plates and pin shafts, the front ends of the double connecting plates are connected with the arc door lifting lug plates through the pin shaft respectively, and the rear ends of the double connecting plates are rotationally connected with the lifting head of the double-cylinder back-pull type hydraulic machine through the pin shaft. According tothe method and the device, the connecting device is additionally arranged between the lifting head of the double-cylinder back-pull type hydraulic machine and the side beam of the arc door, so that the connecting position of the hydraulic machine lifting head and the arc door is located at the open position behind an arc door leaf, the operation space is effectively increased, and the connectionand installation of the hydraulic machine lifting head and the arc door are facilitated.

Description

technical field [0001] The invention relates to a method and a device for connecting a double-cylinder back-pull hydraulic press and an arc door, and belongs to the technical field of water conservancy and hydropower engineering. Background technique [0002] For arc doors operated by a double-cylinder back-pull hydraulic press, the side beams usually double as lug plates, which are double webs with hanging holes. . During the rotation of this type of arc door from the bottom to the top, when the piston rod of the hydraulic press shrinks to the cylinder of the hydraulic machine, the hydraulic cylinder usually rotates at a relatively large angle, so when the arc door rotates close to the top, the hydraulic cylinder will meet the double web structure. If the net distance between the double web structure is smaller than the diameter of the hydraulic cylinder, the cylinder will not be able to continue to run when it encounters the double web structure. Therefore, the net distan...

AI Technical Summary

Problems solved by technology

During the rotation of this type of arc door from the bottom to the top, when the piston rod of the hydraulic press shrinks to the cylinder of the hydraulic machine, the hydraulic oil cylinder usually rotates at a relatively large angle, so when the arc door rotates close to the top, the hydraulic cylinder will meet the double web structure. If the net distance between the double web structure is smaller than the diameter of the hydraulic cylinder, the cylinder will not be able to continue to run when it encounters the double web structure, so the net distance between the double web structure is usually greater than the diameter of the hydraulic cylinder, which is for large-scale The arc door, the capacity of the hydraulic machine is large, and the diameter of the cylinder of the hydraulic machine is large, which will lead to a large net distance between the double web structure and a large bending moment on the hanging shaft, so the diameter of the hanging shaft will increase, resulting in hydraulic machine The size of the lifting head is too large, which increases the difficulty of manufacturing, and increases the depth of the hydraulic press lifting head into the double web structure. Due to the narrow installation space, it increases the difficulty of assembly between the hydraulic press and the arc door

Images