Supporting device for detecting hardness of torsion shaft

Abstract

The utility model provides a supporting device for detecting the hardness of a torsion shaft, the supporting device consists of two supporting frames, each supporting frame comprises a bracket and a rotating rod, the bracket comprises a screw sleeve, a base plate, an upright post, a bottom plate, a bolt and a nut, and the rotating rod comprises a shaft support, a spiral seat, a pull rod and a screw rod. According to the supporting device, the torsion shaft can be kept horizontal, stable and reliable, and the measurement requirement of torsion shaft hardness detection is met, so that the real hardness value of the torsion shaft can be obtained, a basis is provided for subsequent processing, and a reliable guarantee is provided for final assembly of the torsion shaft and use of a vehicle; and core power support is provided when the special vehicle runs on various complex roads.

Description

Technical Field

[0001] The utility model belongs to the technical field of material hardness detection, and in particular relates to a supporting device for detecting the hardness of a torsion shaft. Background Art

[0002] The torsion shaft is located in the torsion bar guard on the bottom deck of the special vehicle. It is an important load-bearing part of the vehicle's moving part and a core component for transmitting torque. Therefore, the requirements for its material and processing are relatively high. In the heat treatment process, accurately measuring its hardness value plays a vital role in judging the internal performance of the torsion shaft and subsequent processing.

[0003] In the existing production process, one end of the torsion shaft is usually placed on the measuring platform of the hardness tester, and the other end is placed on a platform of the corresponding height, which makes it impossible to effectively fix the torsion shaft, and the height cannot make the left and right sides meet the horizontal requirements. In addition, the torsion shaft may roll off the platform, causing damage to parts and safety risks. During measurement, due to unstable fixation and failure to meet the horizontal requirements, the pressed ball mark will be skewed and deviated, resulting in a large error between the measured value and the true value, affecting the judgment of the true hardness of the torsion shaft, and then causing a reduction in the comprehensive performance of the torsion shaft during subsequent processing, affecting the stability and reliability of the special vehicle's mobility function after installation and use. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model proposes a supporting device for testing the hardness of a torsion shaft, so as to solve the technical problem of how to keep the torsion shaft horizontal and having a certain stability so that the torsion shaft will not twist and move when testing the hardness, thereby achieving the accuracy of the torsion shaft hardness measurement value and providing a reliable guarantee for subsequent processing and use.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the utility model proposes a support device for testing the hardness of a torsion shaft, the support device is composed of two support frames, each of which includes a bracket and a rotating rod; wherein,

[0008] The bracket includes a screw sleeve, a pad, a column, a bottom plate, bolts and nuts; wherein the top ends of the plurality of columns are fixedly connected to the pad, and the bottom ends of the plurality of columns are fixedly connected to the bottom plate, forming the main support part of the support frame; the screw sleeve is installed in the middle of the pad, used to support the rotating rod, and enables the rotating rod to rotate relative to the screw sleeve to change the height of the part protruding from the surface of the pad; a plurality of bolts are respectively inserted into the nuts and then screwed into the screw holes evenly distributed on the bottom plate, the bolts are used to adjust the horizontal degree of the support frame, and the nuts are used to be fastened to the bottom plate after the bolt adjustment is completed;

[0009] The rotating rod includes a shaft support, a spiral seat, a pull rod and a screw; wherein the shaft support is installed in the top circular groove of the spiral seat, and the shaft support is used to support the torque shaft; rotating parts are installed around the spiral seat to control the rotation of the rotating rod; the top of the screw is connected to the bottom of the spiral seat, and the lower part of the screw is screwed into the screw sleeve of the bracket.

[0010] Furthermore, the shaft support and the spiral seat are clearance-matched, and the shaft support can rotate freely in the inner hole of the spiral seat.

[0011] Furthermore, a V-shaped block is provided on the top of the shaft support for achieving line contact with the shaft side of the torsion shaft.

[0012] Furthermore, a plurality of tie rods are installed around the spiral seat.

[0013] (III) Beneficial effects

[0014] The utility model proposes a support device for testing the hardness of a torsion shaft, the support device is composed of two support frames, each support frame includes a support and a rotating rod, the support includes a screw sleeve, a pad, a column, a bottom plate, a bolt and a nut, and the rotating rod includes a shaft support, a spiral seat, a pull rod and a screw. The support device of the utility model can keep the torsion shaft horizontal, stable and reliable, meet the measurement requirements of the torsion shaft hardness test, so that the true hardness value of the torsion shaft can be obtained, providing a basis for subsequent processing, providing reliable guarantee for the assembly of the torsion shaft and the use of the vehicle, and ensuring that the special vehicle provides core power support when driving on various complex roads.

[0015] The beneficial effects of the utility model specifically include:

[0016] 1. By using two support frames that can be adjusted in height and can be coaxial in the horizontal direction, the torsion shaft can be placed horizontally at two support points with a distance of about 1.8m, and fixed reliably, meeting the measurement requirements of the torsion shaft for hardness testing;

[0017] 2. Use four bolts to screw into the corresponding screw holes on the bottom plate. By adjusting the screwing depth, the bracket can be placed horizontally;

[0018] 3. The top of the shaft support adopts a V-shaped structure, which can achieve linear contact with the shaft side of the torque shaft, and is stable and reliable. At the same time, the shaft support and the spiral seat adopt a clearance fit, and the shaft support can rotate freely in the inner hole of the spiral seat, making the V-shaped structure of the shaft support adjustable and flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view of the support device for testing the hardness of a torsion shaft according to the utility model;

[0020] Figure 2 It is a top view of the support device for testing the hardness of a torsion shaft of the utility model;

[0021] Figure 3 This is a working schematic diagram of the support device for testing the hardness of a torsion shaft according to the utility model;

[0022] Figure 4 This is a three-dimensional diagram of a support device for testing the hardness of a torsion shaft according to the utility model;

[0023] Figure 5 This is a schematic diagram of the support structure in the utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the rotating rod in the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0026] This embodiment provides a support device for testing the hardness of a torsion shaft, the structure of which is as follows: Figures 1 to 4 As shown, the supporting device is composed of two supporting frames 2 , and each supporting frame 2 includes a bracket 3 and a rotating rod 4 .

[0027] like Figure 5 As shown, the bracket 3 includes a screw sleeve 5, a pad 6, a column 7, a base plate 8, bolts 9 and nuts 10. Among them, the top ends of the four columns 7 are fixedly connected to the pad 6, and the bottom ends of the four columns 7 are fixedly connected to the base plate 8, forming the main support part of the support frame 2. The screw sleeve 5 is installed in the middle of the pad 6 to support the rotating rod 4, and enables the rotating rod 4 to rotate relative to the screw sleeve 5 to change the height of the part protruding from the surface of the pad 6. The four bolts 9 are respectively inserted into the nuts 10 and then screwed into four screw holes evenly distributed on the base plate 8. The bolts 9 are used to adjust the horizontal degree of the support frame 2, and the nuts 10 are used to be fastened to the base plate 8 after the bolts 9 are adjusted.

[0028] like Figure 6 As shown, the rotating rod 4 includes a shaft support 11, a spiral seat 12, a pull rod 13 and a screw 14. Among them, the shaft support 11 is installed in the top circular groove of the spiral seat 12, and can rotate freely in the spiral seat 12, so as to adjust the support direction. The shaft support 11 is used to support the torsion shaft 1, and realizes line contact with the axial side of the torsion shaft 1 through the V-block on the top of the shaft support 11, so as to adjust the support direction and stability of the torsion shaft 1, and ensure that the torsion shaft 1 is stored horizontally and is stable and reliable. Four pull rods 13 are installed around the spiral seat 12 to control the rotation of the rotating rod 4. The top of the screw 14 is connected to the bottom of the spiral seat 12, and the lower part of the screw 14 is screwed into the screw sleeve 5 of the bracket 3.

[0029] When using the above-mentioned support device for testing the hardness of the torsion shaft, place the two support frames 2 at a distance of about 1.8 m, adjust the bolts 9 respectively to keep the two support frames 2 level and at the same height, tighten the nut 10 on the base plate 8, rotate the screw 14 to keep the two shaft supports 11 at the same height, then rotate the shaft supports 11 to keep the centers of the V-blocks of the two shaft supports 11 in a straight line, place the torsion shaft 1 symmetrically on the two support frames 2, keep the torsion shaft 1 level and stable and reliable, and use a hardness tester to test the hardness of the corresponding positions on the torsion shaft 1.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A support device for testing the hardness of a torsion shaft, characterized in that: The support device is composed of two support frames, each of which includes a bracket and a rotating rod; wherein, The bracket includes a screw sleeve, a pad, a column, a base plate, bolts and nuts; wherein the top ends of the plurality of columns are fixedly connected to the pad, and the bottom ends of the plurality of columns are fixedly connected to the base plate to form the main support part of the support frame; the screw sleeve is installed in the middle of the pad, used to support the rotating rod, and enables the rotating rod to rotate relative to the screw sleeve to change the height of the part protruding from the surface of the pad; a plurality of bolts are respectively inserted into the nuts and then screwed into the screw holes evenly distributed on the base plate, the bolts are used to adjust the horizontal degree of the support frame, and the nuts are used to be fastened to the base plate after the bolts are adjusted; The rotating rod includes an axle support, a spiral seat, a pull rod and a screw; wherein the axle support is installed in the top circular groove of the spiral seat, and the axle support is used to support the torque shaft; rotating parts are installed around the spiral seat to control the rotation of the rotating rod; the top end of the screw is connected to the bottom of the spiral seat, and the lower part of the screw is screwed into the screw sleeve of the bracket.

2. The support device according to claim 1, characterized in that: The shaft support and the spiral seat are clearance matched, and the shaft support can rotate freely in the inner hole of the spiral seat.

3. The supporting device according to claim 1, characterized in that: A V-shaped block is arranged on the top of the shaft support for achieving line contact with the shaft side of the torsion shaft.

4. The support device according to claim 1, characterized in that: A plurality of pull rods are installed around the spiral seat.

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