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Strain gauge attaching device and method for deep-hole shaft pin sensor

A shaft pin sensor and patch device technology, which is applied in the direction of plastic deformation fastening, connecting components, mechanical equipment, etc., can solve the problem of inability to ensure accurate positioning of strain gauges, poor connection between the patch and the inner wall of the deep-hole narrow-diameter shaft pin, etc. problems, to achieve the effect of improving placement efficiency and placement accuracy, improving placement efficiency, and facilitating smooth entry

Inactive Publication Date: 2015-11-11
马鞍山科勒称重设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the existing deep hole shaft pin sensor patch device cannot ensure the accurate positioning of the strain gauge and the poor connection effect between the patch and the inner wall of the deep hole narrow diameter shaft pin, the present invention provides a deep hole shaft pin sensor patch device and a patch The method can accurately locate the position of the strain gauge in the deep hole shaft pin sensor to obtain high-quality, accurate measurement products, and can be used in mass production of the production line with high production efficiency

Method used

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  • Strain gauge attaching device and method for deep-hole shaft pin sensor
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  • Strain gauge attaching device and method for deep-hole shaft pin sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 , figure 2 , image 3 with Figure 4 As shown, a deep-hole shaft pin sensor patch device includes two arc-shaped plates and a rod core. The materials of the arc-shaped plates and the rod core are both martensitic precipitation-hardening stainless steel of the brand SS-17-4PH; the arc The surface hardness of the shaped plate and the rod core are both HRC33; the arc-shaped plate is in the shape of an arc tile, which includes an inner arc surface, an outer arc surface, and two transitional surfaces between the inner arc surface and the outer arc surface; the outer arc surface is rough The degree of roughness is 0.4; the roughness of the inner arc surface and the surface of the rod core is 0.2; the two transition surfaces on the same arc plate are on the same plane; one end of the rod core is hemispherical, and the cross section of the rod core is circular. The radius of the arc is equal to the radius of the arc on the cross section of the inner arc; th...

Embodiment 2

[0067] Same as Example 1, except that: the surface hardness of the arc-shaped plate and the rod core are both HRC30; the roughness of the outer arc surface is 0.2; the roughness of the inner arc surface and the surface of the rod core is 0.1; the two arc-shaped plates The distance between the transition surfaces of the two arc-shaped plates parallel to each other after the inner arc surface and the outer surface of the rod core is bonded is 8mm, and the diameter of the outer arc-shaped surfaces of the two arc-shaped plates is smaller than the diameter of the deep hole in the deep hole shaft pin sensor 12mm, so that after the rod core extends into the two arc-shaped plates, the two arc-shaped plates can expand radially by 4mm, so that the distance between the inner wall of the deep hole and the outer arc surface of the two arc-shaped plates is 10mm; conversely, when After wrapping the 8mm thick rubber sheet on the two arc-shaped plates, the expansion of the two arc-shaped plates...

Embodiment 3

[0070] Same as Example 1, except that: the surface hardness of the curved plate and the rod core are both HRC29; the roughness of the outer curved surface is 0.2; the roughness of the inner curved surface and the surface of the rod core is 0.4; the two curved plates The distance between the transition surfaces of the two arc-shaped plates parallel to each other after the inner arc surface and the outer surface of the rod core is bonded is 8mm, and the diameter of the outer arc-shaped surfaces of the two arc-shaped plates is smaller than the diameter of the deep hole in the deep hole shaft pin sensor 16mm, so that after the rod core extends into the two arc-shaped plates, the two arc-shaped plates can expand radially by 4mm, so that the distance between the inner wall of the deep hole and the outer arc surface of the two arc-shaped plates is 16mm; conversely, when After wrapping the 10mm thick rubber sheet on the two arc-shaped plates, the expansion of the two arc-shaped plates ...

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Abstract

The invention discloses a strain gauge attaching device and method for a deep-hole shaft pin sensor, and belongs to the field of shaft pin sensors. The problems that an existing strain gauge attaching device of a deep-hole shaft pin sensor cannot ensure that a strain gauge is accurately positioned and is poor in strain gauge attaching effect are solved. The strain gauge attaching device comprises two arc plates and a bar core. The arc plates are in a circular arc tile shape. Each arc plate comprises an inner arc face, an outer arc face and two transition faces between the inner arc face and the outer arc face, wherein the two transition faces are on the same plane. The cross section of the bar core is in a circular shape. The radius of the circular cross section is equal to the circular arc radius of the cross section of each inner arc face. The circular arc on the cross section of each outer arc face is concentric with the circular arc on the cross section of the corresponding inner arc face. According to the strain gauge attaching device and method, the position of the strain gauge in the deep-hole shaft pin senor can be accurately positioned, and therefore high-quality and accurately-measured products are obtained.

Description

technical field [0001] The invention belongs to the field of shaft pin sensors, and in particular relates to a deep-hole shaft pin sensor patch device and a patch method. Background technique [0002] The shaft pin sensor is a special sensor for measuring the radial load of bearings, pulleys and other components or the tension of wire ropes. It can replace the pulley pin and be installed in the structure for radial force measurement. According to different purposes, hooks, rigging shackles, movable pulleys (sets), fixed pulleys (sets), wedge joints, steel cable sockets, marine rigging, open turnbuckles, and tie rod heads are conveniently installed at the joints of two metal structures. It can not only replace the original shaft, but also play the role of weighing force sensor, so that the whole weighing force control system The mechanical parts are greatly simplified. In recent years, the shaft pin sensor is mainly used in the field of electronic crane scales, and it is mo...

Claims

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Application Information

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IPC IPC(8): F16B11/00
CPCF16B11/002
Inventor 崔凯庄远
Owner 马鞍山科勒称重设备制造有限公司
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