A tensile strength testing device for industrial belts

Abstract

The utility model discloses an industrial belt is with tensile strength testing arrangement relates to the field of belt testing device. Including frame, pull assembly and measurement component, its characterized in that: pull assembly includes rotation part and push part, rotation part rotation is connected on the frame, and the belt of waiting and measuring is wound on rotation part is driven by rotation part, and push part is located on the frame for pushing rotation part moves and tightens the belt of waiting and measuring, measurement component is located on rotation part and is distributed on rotation part, and the belt of waiting and measuring passes measurement component in turn when rotation part drives the belt of waiting and measuring to move. The application has the data of more meeting actual working condition of measuring, and the error of actual working condition is smaller, and the advantage of more accurate.

Description

Technical Field

[0001] This utility model relates to the field of belt testing devices, and in particular to a tensile strength testing device for industrial belts. Background Technology

[0002] After industrial belts are manufactured, samples are typically taken for tensile strength testing. The general method involves directly sampling the belt and applying tension along its length to test its tensile strength. During testing, a section of belt is removed, clamped at both ends, and pressure is applied to both ends until the belt breaks, thus measuring the tensile strength of that batch of belts. However, this testing device does not simulate the actual working conditions of the belt. Although it can obtain corresponding values, because the measured values ​​are directly obtained, they do not conform to actual working conditions, leading to errors between the test results and actual usage. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a tensile strength testing device for industrial belts.

[0004] This utility model is achieved by the following technical solution: a tensile strength testing device for industrial belts, including a frame, a pulling component and a measuring component. The pulling component includes a rotating part and a pushing part. The rotating part is rotatably connected to the frame. The belt to be tested is wound around the rotating part and driven by the rotating part. The pushing part is provided on the frame for pushing the rotating part to move and tightening the belt to be tested. The measuring components are disposed on the rotating part and are evenly distributed on the rotating part. When the rotating part drives the belt under test to move, the belt under test passes through the measuring components in sequence.

[0005] The rotating part includes a driving wheel and a driven wheel rotatably connected to the frame, the belt to be tested is wound between the driving wheel and the driven wheel, and the pushing part pushes the driven wheel away from or closer to the driving wheel; The frame has a limiting hole, and the end of the driven wheel is inserted into the limiting hole and moves back and forth in the limiting hole under the push of the pushing part.

[0006] A bearing is fitted at the end of the driven wheel, and the outer ring of the bearing is fixed to a bearing seat. The bearing seat is engaged in the waist hole, and the pushing part is connected to the bearing seat to push the bearing seat to move along the limiting waist hole.

[0007] The side wall of the limiting waist hole is provided with a limiting rib along the moving direction of the bearing seat, and the bearing seat is provided with a corresponding limiting groove, and the limiting rib is inserted into the limiting groove.

[0008] The pushing unit is a hydraulic linear drive device, which is mounted on the frame; The measuring component includes several pressure sensors, which are evenly distributed in a circular pattern on the surface of the driven wheel. The frame is equipped with a processing unit for receiving the pressure sensor signals, and the processing unit is connected to the pressure sensor signals.

[0009] Compared to existing technologies, this invention simulates the operating environment of an industrial belt during actual testing. The belt is wound around real drive and driven pulleys, and the driven pulley is moved. During this movement, the distance between the drive and driven pulleys gradually increases, thus generating tension on the belt. This tension is not a direct pull on a localized part of the belt, but rather more closely resembles the actual working conditions of the belt. Furthermore, the tension can be measured by a pressure sensor on the driven pulley, resulting in data that better matches the actual working conditions with less error and greater accuracy. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the tensile strength testing device for industrial belts in this utility model; Figure 2 This is a partial enlarged schematic diagram of the tensile strength testing device for industrial belts in this utility model; In the diagram: 1. Frame; 2. Pulling assembly; 21. Rotating part; 211. Driving wheel; 212. Driven wheel; 22. Pushing part; 221. Limiting hole; 222. Bearing; 223. Bearing seat; 224. Limiting groove; 225. Limiting rib; 226. Hydraulic linear drive device; 3. Measuring assembly; 31. Pressure sensor; 32. Processing unit; 4. Belt to be measured. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0012] Reference Figure 1-2 An industrial belt tensile strength testing device includes a frame 1, a pulling assembly 2, and a measuring assembly 3. The pulling assembly 2 includes a rotating part 21 and a pushing part 22. The rotating part 21 is rotatably connected to the frame 1. The belt to be tested 4 is wound around the rotating part 21 and driven by the rotating part 21. The pushing part 22 is located on the frame 1 and is used to push the rotating part 21 to move and tighten the belt to be tested 4. Throughout the testing process, the belt to be tested 4 operates according to actual working conditions, that is, driven by the rotating part 21. It is even possible to place materials of the same weight as the material to be conveyed on the belt to more closely approximate real working conditions.

[0013] The measuring components 3 are mounted on the rotating part 21 and are evenly distributed on the rotating part 21. When the rotating part 21 drives the belt under test 4 to move, the belt under test 4 passes through the measuring components 3 in sequence. Since the rotating part 21 drives the belt under test 4 to rotate throughout the entire test process, each part of the belt under test 4 can pass through the measuring components 3 to achieve measurement.

[0014] Specifically, in this embodiment, the rotating part 21 includes a driving wheel 211 and a driven wheel 212 rotatably connected to the frame 1. The belt 4 to be tested is wound between the driving wheel 211 and the driven wheel 212. The pushing part 22 pushes the driven wheel 212 away from or towards the driving wheel 211. To limit the stroke of the driven wheel 212, a limiting hole 221 is provided on the frame 1. The end of the driven wheel 212 is inserted into the limiting hole 221 and moves back and forth within the limiting hole 221 under the push of the pushing part 22. In this embodiment, the pushing part 22 is a hydraulic linear drive device 226. Of course, it can also be other drive devices with linear pushing function. In this embodiment, the hydraulic linear drive device 226 is still used as an example. The hydraulic linear drive device 226 is provided on the frame 1, and the rotating part 21 includes a driving wheel 211 and a driven wheel 212. In this embodiment, both the driving wheel 211 and the driven wheel 212 are rotatably connected to the frame 1. A hole for inserting the end of the drive wheel 211 can be opened at one end of the frame 1, and a bearing 222 is fixed in the hole. The bearing 222 serves as lubrication between the hole and the drive wheel 211, meaning the end of the drive wheel 211 passes through the bearing 222, thus reducing friction when the drive wheel 211 rotates. An electric motor can be fixed on the frame 1 to drive the drive wheel 211. The electric motor can be driven by conventional gear meshing, i.e., a meshing gear is fitted at one end of the drive wheel 211, and another meshing gear is fitted on the drive shaft of the electric motor, with transmission achieved through the meshing of the two gears. Of course, other conventional driving methods can also be used; in this embodiment, it is sufficient as long as the drive wheel 211 can rotate actively. The belt to be tested 4 is wound between the drive wheel 211 and the driven wheel 212, with the rotation of the drive wheel 211 driving the belt to move and the driven wheel 212 moving synchronously. This simulates a relatively realistic testing environment for the belt to be tested 4 during the testing process, thereby improving the accuracy of the test.

[0015] Throughout the testing process, the drive wheel 211 drives the driven wheel 212 to rotate via the belt under test 4. At the same time, the driven wheel 212 is driven by the hydraulic linear drive device 226 to move backward (away from the drive wheel 211), thereby causing the belt under test 4 to be continuously tightened. Finally, the tensile strength of the belt under test 4 is tested under the normal working condition, making the test results more accurate.

[0016] To ensure that the rotation of the driven wheel 212 is not affected when the hydraulic linear drive device 226 pushes it, a bearing 222 is preferably fitted onto the end of the driven wheel 212, and a bearing seat 223 is fitted onto the outside of the bearing 222. The bearing seat 223 moves within the limiting slot 221, and the drive shaft of the hydraulic linear drive device 226 can be fixed to the bearing seat 223. Specifically, the end of the driven wheel 212 is fitted with a bearing 222, the outer ring of the bearing 222 is fixed to the bearing seat 223, the bearing seat 223 is engaged in the slot, and the drive shaft of the hydraulic linear drive device 226 is connected to the bearing seat 223, pushing the bearing seat 223 to move along the limiting slot 221.

[0017] In this embodiment, to ensure smooth sliding of the bearing seat 223 within the limiting slot 221, a limiting rib 225 is provided on the side wall of the limiting slot 221 along the moving direction of the bearing seat 223. The bearing seat 223 is correspondingly provided with a limiting groove 224, and the limiting rib 225 is inserted into the limiting groove 224. In this embodiment, the measuring component 3 includes several pressure sensors 31, which are evenly distributed in a circular pattern on the surface of the driven wheel 212. A processing unit 32 for receiving signals from the pressure sensors 31 is provided on the frame 1, and the processing unit 32 is connected to the pressure sensors 31. In this embodiment, the pressure sensor 31 is mounted on the driven wheel 212. As the driven wheel 212 moves away from the driving wheel 211, the specific signal connection between the processing unit 32 and the pressure sensor 31 in this embodiment can utilize the scheme described in the Chinese invention patent with authorization announcement number CN108426659B entitled "Pressure Sensor Detection Circuit and Display Panel", or any other known scheme. It is only necessary to display the pressure data collected by the pressure sensor 31 in this embodiment on the screen for the testing personnel to read.

[0018] Compared to existing technologies, this invention simulates the operating environment of an industrial belt during actual testing. The belt is wound around a real drive pulley 211 and driven pulley 212, and the driven pulley 212 is moved. During the movement, the distance between the drive pulley 211 and driven pulley 212 is gradually increased, which in turn generates tension on the belt. This tension is not a direct pull on a local part of the belt, but is more similar to the actual working conditions of the belt. Furthermore, the tension can be measured by the pressure sensor 31 on the driven pulley 212. Therefore, the measured data is more consistent with the actual working conditions, with smaller errors and greater accuracy.

[0019] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A tensile strength testing device for industrial belts, comprising a frame, a pulling assembly, and a measuring assembly, characterized in that: The pulling assembly includes a rotating part and a pushing part. The rotating part is rotatably connected to the frame. The belt to be tested is wound around the rotating part and driven by the rotating part. The pushing part is provided on the frame to push the rotating part to move and tighten the belt to be tested. The measuring components are disposed on the rotating part and are evenly distributed on the rotating part. When the rotating part drives the belt under test to move, the belt under test passes through the measuring components in sequence.

2. The tensile strength testing device for industrial belts according to claim 1, characterized in that: The rotating part includes a driving wheel and a driven wheel rotatably connected to the frame, the belt to be tested is wound between the driving wheel and the driven wheel, and the pushing part pushes the driven wheel away from or closer to the driving wheel; The frame has a limiting hole, and the end of the driven wheel is inserted into the limiting hole and moves back and forth in the limiting hole under the push of the pushing part.

3. The tensile strength testing device for industrial belts according to claim 2, characterized in that: A bearing is fitted at the end of the driven wheel, and the outer ring of the bearing is fixed to a bearing seat. The bearing seat is engaged in the waist hole, and the pushing part is connected to the bearing seat to push the bearing seat to move along the limiting waist hole.

4. The tensile strength testing device for industrial belts according to claim 3, characterized in that: The side wall of the limiting waist hole is provided with a limiting rib along the moving direction of the bearing seat, and the bearing seat is provided with a corresponding limiting groove, and the limiting rib is inserted into the limiting groove.

5. The tensile strength testing device for industrial belts according to any one of claims 2-4, characterized in that: The pushing unit is a hydraulic linear drive device, which is mounted on the frame; The measuring component includes several pressure sensors, which are evenly distributed in a circular pattern on the surface of the driven wheel. The frame is equipped with a processing unit for receiving the pressure sensor signals, and the processing unit is connected to the pressure sensor signals.

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