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Push-and-pull hammer

A sliding hammer and sliding rod technology, which can be used in hand-held tools, manufacturing tools, etc., can solve the problems of difficult extraction of the pins of the fully mechanized excavator.

Inactive Publication Date: 2012-11-14
山东矿业管理技术服务集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the pin shaft of the fully mechanized excavator is difficult to pull out, the present invention designs a special tool for pulling out the pin shaft - a push-pull hammer

Method used

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  • Push-and-pull hammer

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Embodiment Construction

[0008] The present embodiment will be described in detail below in conjunction with the accompanying drawings.

[0009] Such as figure 1 As shown, a push-pull hammer comprises a slide bar 1 made of round steel with a diameter of 50mm and a length of 500mm. A slide hammer 2 is placed on the slide bar 1, and a diameter of 70mm is welded at the rear end of the slide bar 1. The circular stopper 3 is processed with a threaded hole 4 with a diameter of 20mm and a depth of 75mm at the front end of the slide bar, and a threaded rod 5 is matched on the threaded hole 4.

[0010] When in use, first drill a threaded hole with a diameter of 20mm on the pin shaft 6 of the fully mechanized excavator, connect one end of the threaded rod 5 to the pin shaft 6, and connect the other end to the threaded hole 4 of the push-pull hammer, and then the construction personnel pulls and slides The hammer 2 hits the iron stopper 3 back and forth on the slide bar 1 to generate an acceleration force, and ...

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PUM

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Abstract

The invention discloses a push-and-pull hammer, comprising a slide bar made of round steel, wherein the diameter of the slide bar is 50mm, and the length of the slide bar is 500mm; a slide hammer is sleeved on the slide bar; a piece of round stop iron with diameter of 70mm is welded at the rear end of the slide bar; and a threaded hole with diameter of 20mm and depth of 75mm is formed in the front end of the slide bar; and a threaded rod is matched on the threaded hole. When the push-and-pull hammer is in use, the threaded hole with the diameter of 20mm is firstly drilled by using an arch hammer on a pin shaft of a roadheader; one end of the threaded rod is connected with the pin shaft, and the other end of the threaded rod is connected with the threaded hole of the push-and-pull hammer; and then a constructor pulls the slide hammer to strike the stop iron back and forth on the slide bar to generate acceleration acting force so that the pin shaft is easily pulled out.

Description

technical field [0001] The invention relates to a special tool for extracting pin shafts. Background technique [0002] Fully mechanized excavator is a kind of comprehensive excavation equipment, which is mainly used for excavation of coal mining preparation roadway. Due to the long-term operation and use of the fully-mechanized excavator underground, these connecting pins have been worn out, deformed, rusted and corroded; The push-pull hammer is a new type of practical tool used for pulling out the pin shafts of the cutting part, shoveling part and other parts when the fully mechanized excavator is removed. Contents of the invention [0003] In order to solve the problem that the pin shaft of the fully mechanized excavator is difficult to extract, the present invention designs a special tool for extracting the pin shaft-a push-pull hammer. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: a push-pull hammer, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02
Inventor 米勇喜于彦新
Owner 山东矿业管理技术服务集团有限公司