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a maintenance device

A shell and end face technology is applied in the field of crane maintenance to achieve the effect of reducing friction

Active Publication Date: 2019-04-30
徐州天骋智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention discloses a maintenance device to solve the current problem that the replacement of the pin shaft of a crane must be performed by workers at high altitudes

Method used

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Embodiment Construction

[0017] The following is further described in detail through specific implementation methods:

[0018] The reference signs in the drawings of the specification include: housing 1, pin shaft 2, first chute 3, pushing block 4, piston plate 5, limiting boss 6, pressing plate 7, pull rod 8, extension spring 9, slide Block 10, second chute 11, arc surface 12, third through hole 13, steel wire rope 14, first pulley 16, second pulley 17, hanging ring 18, blind hole 19, roller 20, oil chamber 21, spring 22. Oil outlet hole 23, cover sheet 24, oil inlet hole 25, wedge block 26, connecting rod 27.

[0019] The embodiment is basically as figure 1 , figure 2 and image 3 Shown: a device for maintenance, including a housing 1, the left end of the housing 1 is horizontally opened with a blind hole 19 that fits with the pin shaft 2, the lower end of the blind hole 19 is opened with a first chute 3, the first chute 3 is slidingly connected with a pushing block 4. The pushing block 4 inclu...

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PUM

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Abstract

The invention belongs to the technical field of crane repair, and particularly discloses a device for repair. The device for repair comprises a shell body, a blind hole for holding a pin roll is arranged on the left side wall of the shell body; a first chute is arranged at the lower end of the inside wall of the blind hole, an extruding block for pushing the pin roll out of the blind hole is glidingly connected to the first chute; a first through hole for penetrating through the extruding block is arranged on the extruding block, a piston plate is glidingly sealed in the first through hole, and a pull rod is glidingly sealed on the piston plate; the lower end of the pull rod is provided with a pressing plate, and the upper part of the piston plate is provided with a second chute; a slide block is glidingly connected to the second chute, a tension spring is fixed between the slide block and the pull rod; a hydraulic structure is arranged at the edge of the first through hole, and confirmed by an annular limiting boss piston plate glidingly sealed with the pull rod and the limiting boss; an oil cavity is arranged at the upper half part of the inside wall of the blind hole, the lowerend face of an oil cavity is provided with an oil hole; a cover piece driven by the slide block for opening the oil outlet is arranged in the oil cavity; the lower end of the extruding block and the lower end of the shell body are provided with a first pulley, a second pulley and a pull cable for changing the force direction.

Description

technical field [0001] The invention belongs to the technical field of crane maintenance, and specifically discloses a maintenance device. Background technique [0002] A crane refers to a multi-action hoisting machine that lifts vertically and carries heavy objects horizontally within a certain range. Cranes can generally be divided into light and small lifting equipment, bridge type lifting machinery and jib type cranes. In the boom structure of various cranes, whether it is a truss boom or a four-bar mechanism boom , each of which is usually connected by a pin shaft. [0003] At present, when the pin shaft between the sections of the boom of the crane is damaged and needs to be replaced, workers are often required to carry out maintenance work at high altitude. Taking the portal crane as an example, when the main boom frame of the portal crane and the elephant trunk frame When the pin shaft between the cranes fails, it is usually necessary to take out the damaged pin sh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/02
CPCB23P19/025
Inventor 寇瑞东
Owner 徐州天骋智能科技有限公司