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Anti-sliding coefficient bolt fastening instrument

A technology of anti-slip coefficient and fastening instrument, which is applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve time-consuming and labor-intensive problems, achieve good economy, easy disassembly and assembly, and ensure the effect of fastening quality

Active Publication Date: 2017-08-18
THE 2ND ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, special manual torque wrench or electric wrench are often used to fasten bolts. This fastening method is time-consuming and laborious.

Method used

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  • Anti-sliding coefficient bolt fastening instrument
  • Anti-sliding coefficient bolt fastening instrument
  • Anti-sliding coefficient bolt fastening instrument

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Effect test

Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0022] like Figure 1-2 As shown, a kind of anti-slip coefficient bolt tightening instrument described in the embodiment of the present invention includes a control cabinet 9, and the front and rear parts of the control cabinet 9 panels are respectively provided with L-shaped plates 1, and the L-shaped The upper end of the plate 1 is provided with a first horizontal plate 2 respectively; the L-shaped plate 1 and the first horizontal plate 2 are both made of No. 45 steel and fixed by the second bolt 7 . ...

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Abstract

The invention discloses an anti-sliding coefficient bolt fastening instrument comprising a control cabinet. L-shaped plates are arranged on the front portion and the rear portion of a control cabinet panel correspondingly. The upper ends of the L-shaped plates are each provided with a first transverse plate. A motor and a gearbox connected with the motor are arranged in the control cabinet. The gearbox is connected with a screw rod. The screw rod is sleeved with a rotary handle. A lower sleeve is arranged on the upper portion of the rotary handle. A torque transmission device is arranged above the lower sleeve and comprises an upright and a sliding key sleeve. A sliding key is arranged on the lower portion of the upright and is movably sleeved with the sliding key sleeve matched with the sliding key. An upper sleeve is arranged on the lower portion of the sliding key sleeve and is matched with the lower sleeve. A second transverse plate is arranged at the upper end of the upright. A connecting rod is arranged in the center of the upper portion of the second transverse plate. The connecting rod penetrates through an inverted-convex groove in a platform to be connected with a torque sensor. The torque sensor is connected to a torque display. A boss of the groove is provided with a bearing. The bearing is provided with a spiral thread pressing plate.

Description

technical field [0001] The invention relates to the technical field of detection equipment, in particular to an anti-slip coefficient bolt fastening instrument. Background technique [0002] The anti-slip coefficient test of the high-strength bolt connection friction surface uses a tensile test piece spliced ​​by two bolts with double friction surfaces, and uses the same batch of high-strength bolt connection pairs of the same performance level. The surface of the test piece is flat, free of oil, and the holes and There is no flash or burr on the edge of the plate. Tightening the bolts is an important step in the anti-slip coefficient test of the high-strength bolt connection friction surface. The fastening of high-strength bolts is divided into initial tightening and final tightening: the initial tightening should reach 50% of the standard value of the bolt pre-tension, and the final tightening of high-strength bolts equipped with pressure sensors or attached with resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06
CPCB23P19/066B23P19/067Y02E10/72
Inventor 吴海生姜金起刘燕军孔泉任倩李鹏飞王纯董学辉
Owner THE 2ND ENG CO LTD OF CHINA RAILWAY 16TH BUREAU GRP
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