Rotating wheel type stress measuring device

Abstract

The utility model discloses a rotating wheel type stress measuring device in the field of stress measurement, which comprises a mounting base I, a mounting base II and a bottom support plate fixed on one side of the mounting base I. One side of the mounting base I is fixedly connected with a strain gauge fixing seat, and one side of the strain gauge fixing seat is provided with a strain gauge body. The number of the strain gauge fixing seats is two, and the other strain gauge fixing seat is arranged at the other end of the strain gauge body. When the strain gauge is used for measuring stress, when the mounting base I and the mounting base II move relatively, the transmission roller is pulled by the transmission bent plate to move under the guidance of the guide slide rail and the slide block, and the guide roller moves along the V-shaped groove, so that the strain gauge body can be extruded to incline and radially deform; as the radial dependent variable of the strain gauge body is far greater than the axial dependent variable, amplification of a corresponding variable measurement result can be realized, and the measurement accuracy can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to stress measurement field, concretely is rotating wheel type stress measurement device. BACKGROUND

[0002] In bridge construction, the strain of the bridge needs to be measured in real time, and the existing measurement method is to directly bond strain gauges on the bridge and measure the stress change directly through the strain gauges. Since the strain gauges are stretched during measurement, the deformation is small, resulting in low measurement accuracy. When measuring the radial change of the strain gauges, the width of the measuring device is large, which is not practical.

[0003] Therefore, the skilled person in the art provides a rotating wheel type stress measurement device to solve the problems raised in the background art. SUMMARY

[0004] The utility model aims at providing rotating wheel type stress measurement device to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The rotating wheel type stress measurement device comprises a mounting base one, a mounting base two and a bottom support plate fixed on one side of the mounting base one, the mounting base one is fixedly connected with a strain gauge fixing seat on one side, the strain gauge fixing seat is provided with a strain gauge body on one side, the strain gauge fixing seat has two, and the other strain gauge fixing seat is arranged at the other end of the strain gauge body, a transmission block is fixedly connected to the strain gauge fixing seat at the other end of the strain gauge body, a V-shaped groove is formed in the upper side of the transmission block, a transmission bent plate is fixedly connected to the upper side of the mounting base two, a support wheel seat is fixedly connected to the bottom of the other end of the transmission bent plate, a transmission roller is arranged at the bottom end of the support wheel seat, and the transmission roller and the support wheel seat are connected through an axle rod arranged between them.

[0007] As a further scheme of the utility model, the transmission roller and the support wheel seat are transitionally matched, and the axle rod and the transmission roller are rotatably connected through a bearing.

[0008] As a further scheme of the utility model, mounting holes for fixation are formed in the mounting base one and the mounting base two.

[0009] As a further scheme of the utility model, a horizontal guide rail is fixedly connected to the upper side of the bottom support plate, a sliding block is fixedly connected to one side of the bottom support plate, and the sliding block and the guide rail are slidingly matched.

[0010] Compared with the prior art, the utility model has the following advantages:

[0011] The utility model discloses can be corresponding stress measurement, the relative motion of installation base no. 1 and installation base no. 2, and further through the transmission curved plate pull transmission roller movement under the guidance of guide slide rail and sliding block, and the guidance wheel moves along the V -groove, can extrude strain gauge body inclination, and the radial deformation of strain gauge body occurs, because the radial strain of strain gauge body is far greater than axial strain, thus can realize the amplification of strain measurement result, can improve the accuracy of measurement greatly, through setting transmission roller and V -groove realize the axial strain of strain gauge body conversion into radial strain, and will not increase the overall width of measuring device, convenient packing and transportation. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is the structural diagram of the utility model;

[0013] Fig. 2 It is the structure diagram of installation base no. 1 and bottom support plate in the utility model;

[0014] Fig. 3 It is the right view of support wheel seat in the utility model.

[0015] In the drawing: 1, installation base no. 1;2, installation base no. 2;3, transmission curved plate;4, strain gauge fixed base;5, bottom support plate;6, strain gauge body;7, transmission block;8, V -groove;9, guide slide rail;10, support wheel seat;11, sliding block;12, transmission roller;13, wheel shaft. DETAILED DESCRIPTION

[0016] The technical scheme in the utility model embodiment will be described clearly and completely below in conjunction with the drawings in the utility model embodiment, and obviously, the described embodiment only is a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor all belong to the scope of the utility model protection.

[0017] Please refer to Figs. 1-3The utility model discloses a rotating wheel type stress measuring device, including installation base one 1, installation base two 2 and the bottom support plate 5 of fixed installation base one 1 one side, installation base one 1 one side is fixedly connected with strain gauge fixed seat 4, and strain gauge fixed seat 4 one side is provided with strain gauge body 6, and strain gauge fixed seat 4 has two, and another strain gauge fixed seat 4 sets up in the other end of strain gauge body 6, and the strain gauge fixed seat 4 on strain gauge body 6 other end is fixedly connected with transmission block 7, and V type groove 8 is set up on transmission block 7 top, and the transmission curved plate 3 of installation base two 2 top is fixedly connected, and the transmission curved plate 3 other end bottom is fixedly connected with support wheel seat 10, and the transmission pulley 12 of support wheel seat 10 bottom end is provided, and transmission pulley 12 is connected with support wheel seat 10 through the axle 13 of wheel shaft that is arranged between the both.

[0018] By adopting the above technical scheme, when the stress measuring device measures stress, installation base one 1 and installation base two 2 are fixedly installed on the workpiece to be measured; when the workpiece deforms, installation base one 1 and installation base two 2 move relatively; then transmission curved plate 3 pulls transmission pulley 12 to move under the guidance of guide sliding rail 9 and sliding block 11; guide roller moves along V type groove 8; strain gauge body 6 can be squeezed to incline; and strain gauge body 6 can be deformed radially; since the radial strain of strain gauge body 6 is much larger than the axial strain, the strain measurement result can be amplified, and the measurement accuracy can be greatly improved; transmission pulley 12 and V type groove 8 are arranged to convert the axial strain of strain gauge body 6 into radial strain, and the overall width of the measuring device is not increased, so that packaging and transportation are facilitated.

[0019] Wherein, transmission pulley 12 and support wheel seat 10 are transitionally matched, and axle 13 and transmission pulley 12 are rotatably connected through bearings, so that transmission pulley 12 can rotate flexibly.

[0020] Wherein, installation base one 1 and installation base two 2 are provided with mounting holes for fixation, so that installation base one 1 and installation base two 2 can be fixed.

[0021] Wherein, guide sliding rail 9 is fixedly connected to the top of bottom support plate 5, and sliding block 11 is fixedly connected to the side of bottom support plate 5, wherein sliding block 11 and guide sliding rail 9 are slidingly matched, and guide sliding rail 9 and sliding block 11 are arranged to provide guidance, so that the rigidity of guide roller can be increased.

[0022] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A rotating wheel type stress measuring device comprising a mounting base one (1), a mounting base two (2) and a bottom support plate (5) fixed to one side of the mounting base one (1), characterized in that: The installation base one (1) one side fixedly connected with strain gauge fixed seat (4), the strain gauge fixed seat (4) one side is provided with strain gauge body (6), the strain gauge fixed seat (4) has two, another strain gauge fixed seat (4) is arranged in strain gauge body (6) the other end, the strain gauge body (6) other end strain gauge fixed seat (4) fixedly connected with transmission block (7) on, the transmission block (7) upper V-shaped groove (8) is set up, the installation base two (2) upper fixedly connected with transmission bent plate (3), the transmission bent plate (3) other end bottom fixedly connected with support wheel seat (10), the support wheel seat (10) bottom is provided with transmission roller (12), the transmission roller (12) with the support wheel seat (10) through the wheel shaft (13) connected between them.

2. The rotating wheel stress measurement device of claim 1, wherein: The transmission roller (12) and the support wheel seat (10) are transitionally matched, and the wheel shaft (13) and the transmission roller (12) are rotatably connected through a bearing.

3. The rotating wheel stress measurement device of claim 1, wherein: The installation base one (1) and the installation base two (2) are both provided with a mounting hole for fixation.

4. The rotating wheel stress measurement apparatus of claim 1, wherein: The bottom support plate (5) upper fixedly connected with the horizontal guide slide rail (9), the support wheel seat (10) is located in the bottom support plate (5) one side fixedly connected with sliding block (11), the sliding block (11) with the guide slide rail (9) sliding fit.

Images