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Connecting device for measuring torque of inner hexagon bolts

A connection device, hexagonal bolt technology, applied to measure torque/torsion force, screwdriver, wrench and other directions when tightening, can solve the problem of affecting the accuracy of torque measurement, inability to fully transmit torque, square key and square slot without fastening methods, etc. problem, to achieve the effect of saving the replacement process, facilitating wide-scale use, and low cost

Inactive Publication Date: 2015-09-02
HARBIN TURBINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing connecting device for connecting the torque wrench and the hexagon socket bolt is an integrated connecting piece. The square key on the torque wrench is only inserted into the square groove of the connecting piece, and there is no fastening method between the square key and the square groove. As a result, the torque cannot be completely transmitted, which affects the accuracy of the torque measurement, and then provides a connection device for torque measurement of hexagon socket bolts

Method used

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  • Connecting device for measuring torque of inner hexagon bolts
  • Connecting device for measuring torque of inner hexagon bolts
  • Connecting device for measuring torque of inner hexagon bolts

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Experimental program
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specific Embodiment approach 1

[0012] Specific implementation mode one: combine Figure 1 to Figure 5 Describe this embodiment, this embodiment includes a first connecting piece 1, a second connecting piece 2, two first bolts 3 and two second bolts 4,

[0013] The first connector 1 is composed of an upper cuboid 1-1 and a square key 1-2, the upper end of the upper cuboid 1-1 is provided with a square groove 1-1-1, and the upper cuboid 1-1 corresponding to the square groove 1-1-1 The side wall of 1 is provided with two first threaded through holes 1-1-2, and the upper cuboid 1-1 and the square key 1-2 are set up and down and made into one,

[0014] The second connector 2 is composed of a lower cuboid 2-1 and a cylinder 2-2, the upper end of the lower cuboid 2-1 is provided with a connecting groove 2-1-1, and the corresponding cuboid 2-1 of the connecting groove 2-1-1 The side wall is provided with two second threaded through holes 2-1-2, the lower cuboid 2-1 and the cylinder 2-2 are arranged up and down and...

specific Embodiment approach 2

[0017] Specific implementation mode two: combination Figure 5 To describe this embodiment, the two first threaded through holes 1-1-2 of this embodiment are arranged up and down along the same straight line. Other components and connections are the same as those in the first embodiment.

specific Embodiment approach 3

[0018] Specific implementation mode three: combination Figure 5 To describe this embodiment, the two second threaded through holes 2-1-2 of this embodiment are arranged up and down along the same straight line. Other compositions and connections are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a connecting device for measuring torque of inner hexagon bolts. By the aid of the connecting device, the problem that existing connecting devices for connecting torque wrenches with inner hexagon bolts are integral connecting pieces, square keys are not fastened with square grooves and the torque measuring accuracy is affected can be solved. A first connecting piece of the connecting device comprises an upper cuboid and a square key, a square groove is formed in the upper end surface of the upper cuboid, two first threaded through holes are formed in a side wall of the upper cuboid and correspond to the square groove, a second connecting piece of the connecting device comprises a lower cuboid and a cylinder, a connecting groove is formed in the upper end surface of the lower cuboid, two second threaded through holes are formed in a side wall of the lower cuboid and correspond to the connecting groove, a circular groove is formed in the lower end surface of the cylinder, a regular hexagon column is arranged at the axis of the circular groove, the first connecting piece and the second connecting piece are arranged in the up-down direction, the square key and the connecting groove are fittingly mounted, the corresponding first bolt is connected into each first threaded through hole in a threaded manner, and the corresponding second bolt is connected into each second threaded through hole in a threaded manner. The connecting device has the advantage that the connecting device is used for measuring the torque of the inner hexagon bolts on steam turbine units.

Description

technical field [0001] The invention relates to a coupling device for torque measurement, in particular to a coupling device for torque measurement of hexagon socket bolts. Background technique [0002] Many parts of the steam turbine unit are connected by several hexagon socket bolts. Since the steam turbine is a high-temperature and high-pressure equipment, the bolt connection of the parts must not only be tightened with sufficient torque, but also require a group of connecting bolts to be evenly stressed. Therefore, the tightening force of each bolt It must be as consistent as possible to ensure that each bolt is evenly stressed. How to achieve uniform force requires a torque wrench to detect the torque one by one, and the connection between the torque wrench and the bolt requires a connecting device. The previous connecting device is made in one piece. Connecting piece, the upper end surface of the connecting piece has a square groove, the lower end surface of the connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/50B25B23/00G01L5/24
CPCB25B13/50B25B23/0071G01L5/24
Inventor 张大伟马桂君李强姚传宝于军丹韩金鑫赵云琼王威白玉春李玉鹏姜鸿跃
Owner HARBIN TURBINE