Built-in hydraulic automatic pin pulling device
A built-in, hydraulic technology, applied in the direction of metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of large volume and weight, low work safety factor, large pin shaft, etc., so as to solve the trouble of hammering and reduce the workload , the effect of a reasonable structure
Active Publication Date: 2013-10-09
LIBO HEAVY MACHINE TECH
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Problems solved by technology
Due to the large volume and weight of the large hydraulic support, it is impossible to go up and down the well as a whole, so it must be separated to go up and down the well
This involves the disassembly of various connecting pins on the hydraulic support. Some pins are relatively large, and it is more laborious to disassemble after long-term use.
As a result, the maintenance task of the support is aggravated, which will inevitably bring a lot of labor intensity to the maintenance work and maintenance of the hydraulic support, and the work safety factor is not high
Method used
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[0010] The built-in hydraulic automatic pin pulling device of the present invention, its preferred embodiment is as follows figure 1 , figure 2 , image 3 As shown, the built-in hydraulic automatic pin pulling device includes a supporting cylinder body 1, a pin pulling cylinder body 2, a piston 3, a supporting piston rod 4, a pin pulling piston rod 5, a screw connector 6, and an anti-vibration cover 7.
[0011] The pin pulling piston rod 5 adopts a hollow design, which can be used as a pin pulling return oil passage, saving space.
[0012] The top of the pin pulling piston rod 5 is provided with an anti-vibration cover 7, which reduces the impact of the rapping device on the pin pulling piston rod 5 when the pin is being pulled out, plays a role in protecting the pin pulling piston rod 5, and at the same time combines vibration and pin pulling , so that the pin pulling device has high efficiency.
[0013] The built-in hydraulic automatic pin pulling device of the present i...
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The invention discloses a built-in hydraulic automatic pin pulling device, which comprises a supporting cylinder body, a pin pulling cylinder body, a piston, a piston supporting rod, a pin pulling piston rod, a bolt connector and an anti-vibration cover. The supporting cylinder body and the pin pulling cylinder body are assembled in a concentric nesting manner, the piston supporting rod is assembled with the pin pulling piston rod in a concentric nesting manner, the pin pulling piston rod is hollow, and the bolt connector and the anti-vibration cover are arranged at the top of the pin pulling piston rod. The built-in hydraulic automatic pin pulling device is reasonable in structure, convenient to use and high in tensioning force, and solves the problems of taking a lot of trouble, wasting time and labor and producing insecurity in conventional manual hammering.
Description
technical field [0001] The invention relates to a built-in hydraulic automatic pin pulling device, which is especially suitable for pulling out the positioning pin shafts of mining hydraulic supports and large-scale equipment. Background technique [0002] The hydraulic support of the coal mining face relies on high-pressure liquid, columns and corresponding power jacks to realize the four basic actions of lifting frame, pushing and moving frame, and the connection of various moving parts is mostly connected by pin shafts. Due to the large volume and weight of the large hydraulic support, it cannot go up and down the well as a whole, so it must be separated to go up and down the well. This involves the dismantling of various connecting pins on the hydraulic support. Some pins are relatively large, and it takes a lot of effort to disassemble them after long-term use. Cause the maintenance work task of support to increase the weight of thus, this will certainly bring very big...
Claims
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IPC IPC(8): B23P19/027
Inventor 周满山孙斌武蒋志成陈佩虎李鹏许言威
Owner LIBO HEAVY MACHINE TECH