V-belt length measuring device

Abstract

The utility model relates to the technical field of length measurement, in particular to a V-belt length measuring device which comprises a frame, a guide rail assembly, a driving assembly and a belt wheel assembly, and the guide rail assembly and the driving assembly are installed on the front side face and the rear side face of the frame respectively. The belt wheel assembly comprises a fixed wheel, a sliding wheel and an additional wheel, the fixed wheel is fixedly installed on the frame, the sliding wheel is installed on the guide rail assembly and connected with the driving assembly, the driving assembly can drive the sliding wheel to slide on the guide rail assembly, and a tension sensor is installed between the sliding wheel and the driving assembly. The additional wheel is detachably installed on the frame, and a to-be-tested V belt is wound on the belt wheel assembly and is driven by the fixed wheel to rotate. According to the utility model, the precision and efficiency of V-belt length measurement are improved, and the problems of large error, low efficiency, poor adaptability and the like in the traditional measurement mode are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of length measurement, in particular to a V-belt length measurement device. Background Art

[0002] In industrial production and mining operations, conveyor belts, as key components connecting various production links, the accurate measurement of their lengths is crucial for ensuring the normal operation of mechanical equipment and production efficiency. As a rubber belt widely used in industrial drive systems, the accuracy of V-belt length measurement directly affects the performance and lifespan of the drive system. However, there are many deficiencies in traditional V-belt length measurement methods, and a new technical solution is urgently needed to solve these problems.

[0003] Currently, the measurement of V-belt length mainly relies on manual use of a tape measure or other simple tools. This method has the following disadvantages: 1. Manual measurement has a large error and is easily affected by human factors, resulting in inaccurate measurement results. 2. The measurement efficiency is low. The manual measurement process is cumbersome and time-consuming, and it cannot meet the requirements of large-scale production and rapid detection. 3. It cannot adapt to the measurement of V-belts with different specifications. The sizes of V-belts with different specifications vary greatly, and existing measurement devices may not be universal. It is necessary to design measurement tools separately for each specification, with poor versatility. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the embodiment of the utility model is to provide a V-belt length measurement device, which improves the accuracy and efficiency of V-belt length measurement through automated and precise measurement means, and solves the problems of large error, low efficiency, and poor adaptability existing in the traditional measurement method.

[0005] To achieve the above purpose, the embodiment of the utility model provides the following technical solutions:

[0006] A V-belt length measuring device, comprising: a frame, a guide rail assembly, a driving assembly and a pulley assembly, wherein the guide rail assembly and the driving assembly are respectively installed on the front and rear side surfaces of the frame; the pulley assembly includes a fixed pulley, a sliding pulley and an additional pulley, the fixed pulley is fixedly installed on the frame, the sliding pulley is installed on the guide rail assembly and connected with the driving assembly, the driving assembly can drive the sliding pulley to slide on the guide rail assembly, and a tension sensor is installed between the sliding pulley and the driving assembly, the additional pulley is detachably installed on the frame, and the V-belt to be measured is wound around the pulley assembly and driven to rotate by the fixed pulley; the guide rail assembly includes a slide rail and a slider, the slide rail is fixedly installed on the frame, the slider is slidably installed on the slide rail, and the sliding pulley is installed on the slider; there are two groups of the guide rail assemblies, and the two groups of guide rail assemblies are installed in parallel on the frame, the sliding pulley is installed on a sliding plate, and the two ends of the sliding plate are respectively installed on the sliders of the two groups of guide rail assemblies; the driving assembly includes a ball screw nut pair, the ball screw nut pair includes a screw rod and a ball nut body, the screw rod is arranged in parallel with the slide rail and is located in the middle of the two slide rails, the ball nut body is installed on the screw rod, one side of the tension sensor is connected with the ball nut body, and the other side of the tension sensor is connected with the sliding plate.

[0007] One or more technical solutions provided in the embodiments of the present invention at least have the following technical effects or advantages:

[0008] A tension sensor is installed between the sliding pulley and the driving assembly of the measuring device, so as to ensure the tension of the V-belt and the required measurement accuracy, improve the accuracy of V-belt length measurement, and reduce the interference of human factors. By driving the sliding pulley to slide on the guide rail assembly by the driving assembly and increasing or decreasing the additional pulley, the length measurement of V-belts of different specifications can be adapted, and its versatility is improved. Moreover, the measurement process is simplified, the measurement efficiency is improved, and the requirements of large-scale production and rapid detection are met.

[0009] The advantages of the additional aspects of the present invention will be given in the following description, and some will become obvious from the following description, or will be understood through the practice of the present invention. Description of the Drawings

[0010] The specification drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In addition, the distances or sizes between each part are exaggerated for showing the positions of each part, and the schematic drawings are only for schematic use.

[0011] Figure 1 It is a front view of the measuring device provided by the embodiment of the present invention;

[0012] Figure 2 It is the rear view of the measuring device provided by the embodiment of the present utility model;

[0013] Figure 3 It is the front three-dimensional view of the measuring device provided by the embodiment of the present utility model;

[0014] Figure 4 It is the rear three-dimensional view of the measuring device provided by the embodiment of the present utility model;

[0015] Figure 5 It is the schematic diagram of the frame provided by the embodiment of the present utility model;

[0016] Figure 6 It is the schematic diagram of the guide rail assembly provided by the embodiment of the present utility model;

[0017] Figure 7 It is the installation schematic diagram of the sliding wheel provided by the embodiment of the present utility model;

[0018] Figure 8 It is the installation schematic diagram of the tension sensor provided by the embodiment of the present utility model;

[0019] Figure 9 It is the schematic diagram of the sliding plate provided by the embodiment of the present utility model;

[0020] Figure 10 It is the schematic diagram of the tension sensor provided by the embodiment of the present utility model;

[0021] Figure 11 It is the schematic diagram of the second connecting seat provided by the embodiment of the present utility model;

[0022] Figure 12 It is the two-wheel measurement schematic diagram provided by the embodiment of the present utility model;

[0023] Figure 13 It is the three-wheel measurement schematic diagram provided by the embodiment of the present utility model;

[0024] Figure 14 It is the four-wheel measurement schematic diagram provided by the embodiment of the present utility model.

[0025] In the figure: 1. Frame; 11. Channel steel; 12. Bottom brace; 13. Diagonal brace; 14. Guide rail seat; 15. Motor seat; 16. Ultrasonic sensor; 2. Belt pulley assembly; 21. Fixed wheel; 22. Sliding wheel; 23. Additional wheel; 24. Belt pulley motor; 3. Guide rail assembly; 31. Slide rail; 32. Slide block; 33. Sliding plate; 4. Controller; 5. V-belt; 6. Driving assembly; 61. Servo motor; 62. Coupling; 63. Bearing seat; 64. Ball nut body; 65. Lead screw; 7. Tension sensor; 71. First connecting part; 72. Second connecting part; 8. First connecting seat; 9. Second connecting seat. Specific embodiments

[0026] It should be noted that the following detailed description is illustrative and aims to provide further explanation of the present utility model. Unless otherwise specified, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] To solve the technical problems mentioned in the background art, this embodiment proposes a V-belt length measuring device, which can achieve high-precision and high-efficiency measurement of the V-belt length, adapt to V-belts of different specifications, and meet the requirements of industrial production and detection.

[0028] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 shown, the measuring device includes a frame 1, a guide rail assembly 3, a driving assembly 6, and a pulley assembly 2. The guide rail assembly 3 and the driving assembly 6 are respectively installed on the front and rear sides of the frame 1, where the front side refers to the side where the operator operates. The pulley assembly 2 includes a fixed pulley 21, a sliding pulley 22, and an additional pulley 23. The fixed pulley 21 is fixedly installed on the frame 1. The sliding pulley 22 is installed on the guide rail assembly 3 and connected to the driving assembly 6. The driving assembly 6 can drive the sliding pulley 22 to slide on the guide rail assembly 3, and a tension sensor 7 is installed between the sliding pulley 22 and the driving assembly 6 (as Figure 8 、 Figure 10 shown). The additional pulley 23 is detachably installed on the frame 1, and the V-belt 5 to be measured is wound around the pulley assembly 2 and driven to rotate by the fixed pulley 21.

[0029] The basic structure of the V-belt 5 length measuring device consists of a frame 1, a guide rail assembly 3, a driving assembly 6, and a pulley assembly 2. The frame 1 serves as the supporting structure of the device to ensure the stability and overall coordination of each component. The guide rail assembly 3 and the driving assembly 6 are respectively installed on the front and rear sides of the frame 1 to facilitate the precise control of the sliding pulley 22. The pulley assembly 2 consists of a fixed pulley 21, a sliding pulley 22, and an additional pulley 23. The fixed pulley 21 is fixedly installed on the frame 1 and serves as the driving pulley to provide the power required for the rotation of the V-belt 5, while the sliding pulley 22 can slide closer to or farther away from the fixed pulley 21. The driving assembly 6 is responsible for driving the sliding pulley 22 to slide on the guide rail to adapt to V-belts 5 of different specifications. During the measurement process, the V-belt 5 to be measured is wound around the pulley assembly 2, and a tension sensor 7 is installed between the sliding pulley 22 and the driving assembly 6 to ensure the tension of the V-belt 5 and the required measurement accuracy, thereby achieving high-precision measurement of the length of the V-belt 5.

[0030] As shown Figure 5 in FIG. 1, the frame 1 includes a plurality of channel steels 11. The plurality of channel steels 11 are arranged in an H shape to form the main structure of the frame 1. A guide rail seat 14 is provided at the upper end of the main structure. The guide rail assembly 3 and the driving assembly 6 are respectively installed on the front and rear sides of the guide rail seat 14. The main structure arranged in an H shape provides good rigidity and stability. The setting of the guide rail seat 14 ensures the correct installation and cooperation of the guide rail assembly 3 and the driving assembly 6, avoiding the complexity of the structure.

[0031] The main structure of the frame 1 is arranged obliquely. A bottom brace 12 is provided at the bottom of the main structure. An inclined brace 13 is provided between the bottom brace 12 and the main structure. Bolt holes for connection are also provided on the bottom brace 12. The cooperation of the bottom brace 12 and the inclined brace 13 enhances the compressive strength and stability of the structure. The structure is simple and convenient to move, and can be measured indoors, reducing the interference of environmental factors.

[0032] As shown Figure 3 in FIGS. 2 Figure 6 and 3, the guide rail assembly 3 includes a slide rail 31 and a slider 32. The slide rail 31 is fixedly installed on the guide rail seat 14. The slider 32 is slidably installed on the slide rail 31. The sliding wheel 22 is installed on the slider 32 through a sliding plate 33. The slide rail 31 and the slider 32 form a simple and efficient sliding mechanism. This structural design enables the sliding wheel 22 to slide freely on the slide rail 31, ensuring the flexibility of measurement. The sliding wheel 22 is installed on the slider 32 and can quickly adapt to V-belt 5s of different specifications through the sliding mechanism, thereby improving the measurement efficiency. During the measurement process, the sliding wheel 22 is connected to the tension sensor 7 to monitor the tension change of the V-belt 5 in real time for corresponding adjustment and optimization.

[0033] Further, there are two sets of the guide rail assembly 3, and the two sets of guide rail assemblies 3 are installed in parallel on the guide rail seat 14. As shown Figure 7 in FIG. 4, the sliding wheel 22 is installed on the sliding plate 33. The sliding plate 33, as shown Figure 9 in FIG. 5, has its two ends respectively installed on the sliders 32 of the two sets of guide rail assemblies 3, forming a stable support and sliding mechanism.

[0034] As shown Figure 4 in FIGS. 6 Figure 8As shown, the drive assembly 6 adopts the design of a ball screw nut pair to ensure the efficiency and precision of the drive. The lead screw 65 is arranged in parallel with the slide rail 31 and is located in the middle of the two slide rails 31, forming a stable transmission path. The ball nut body 64 is installed on the lead screw 65, which can effectively reduce friction loss and improve the efficiency of power transmission. One side of the tension sensor 7 is connected to the ball nut body 64, and the other side is connected to the slide plate 33, enabling more timely monitoring and feedback of the tension. By monitoring the tension change in real time, the drive assembly 6 can dynamically adjust the position of the sliding wheel 22, so that the tension of the V-belt 5 is maintained within a suitable range, further improving the measurement accuracy.

[0035] As Figure 8 , Figure 10 , Figure 11 shown, a first connection seat 8 is installed on the back side of the slide plate 33, and a second connection seat 9 is installed on the front side of the ball nut body 64. Such a design provides a flexible solution for connection. The two sides of the tension sensor 7 are respectively provided with a first connection portion 71 and a second connection portion 72, making the whole device more convenient for assembly and disassembly. The detachable connection between the first connection seat 8 and the first connection portion 71 and the detachable connection between the second connection seat 9 and the second connection portion 72 (for example, connected by bolts) provide great convenience for maintenance and replacement, and at the same time ensure the stability of the device during operation. This design can improve the maintainability and applicability of the device, enabling it to maintain high working performance in different working environments.

[0036] Bearing seats 63 are installed at both ends of the back side of the guide rail seat 14, so that both ends of the lead screw 65 can be smoothly rotatably installed in the bearing seats 63. This design not only reduces the friction and wear of the lead screw 65 during operation, but also effectively extends the service life of the equipment. At the same time, the setting of the bearing seats 63 makes the rotation of the lead screw 65 more stable, contributing to improving the operation accuracy and efficiency of the whole device.

[0037] As Figure 4 , Figure 8 shown, the drive assembly 6 further includes a servo motor 61, and the output shaft of the servo motor 61 is connected to the lead screw 65 through a coupling 62, forming an effective drive system.

[0038] As Figure 3 , Figure 5 shown, a motor seat 15 is provided on one side of the guide rail seat 14, and a pulley motor 24 for driving the fixed wheel 21 to rotate is installed on the motor seat 15. The setting of the motor seat 15 provides a stable support for the pulley motor 24.

[0039] As Figure 3As shown in the figure, the fixed pulley 21 and the sliding pulley 22 are on the same horizontal line, and the sliding pulley 22 can slide along the horizontal line closer to or farther away from the fixed pulley 21. There are two additional pulleys 23, and both of the two additional pulleys 23 are located outside the horizontal line. In this embodiment, the pulley assembly 2 has a total of four pulleys (i.e., one fixed pulley 21, one sliding pulley 22, and two additional pulleys 23), and pulleys of corresponding specifications can be selected and installed according to the specifications of the V-belt 5 to be measured. Among them, the two additional pulleys 23 at the lower end are symmetrically arranged and are detachably connected to the frame 1. One fixed pulley 21 at the upper end is detachably connected to the servo motor 61, and the other sliding pulley 22 at the upper end is detachably installed on the guide rail assembly 3 and can slide reciprocally along the slide rail 31. Such a structural design can not only adapt to the length measurement of V-belts 5 of different specifications, but also ensure the stability and measurement accuracy of the equipment during the length measurement of the V-belt 5, effectively reducing the measurement error caused by the slack or uneven tension of the V-belt 5 and improving the reliability of the measurement process.

[0040] As Figure 3 shown in the figure, a controller 4 is provided on the right side of the frame 1. An ultrasonic sensor 16 is provided at a position on the guide rail base 14 close to the fixed pulley 21. The ultrasonic sensor 16, the tension sensor 7, the servo motor 61, and the pulley motor 24 are all electrically connected to the controller 4. The ultrasonic sensor 16 is used to prevent interference between the upper fixed pulley 21 and the sliding pulley 22 during operation.

[0041] In the traditional measurement method, the measurement results usually need to be manually recorded, the data recording is cumbersome, and recording errors or omissions are likely to occur. In comparison, this measurement device can automatically record measurement data and meet the needs of industrial production and detection.

[0042] The measurement method includes the following steps:

[0043] S1. Estimate the length of the V-belt 5 and select the pulleys with appropriate hanging sleeves.

[0044] S2. Start the servo motor 61 to make the lead screw 65 drive the sliding pulley 22 connected to the guide rail assembly 3 to move left and right.

[0045] S3. Select an appropriate tension for the V-belt 5 according to the tension value received by the tension sensor 7.

[0046] S4. Start the pulley motor 24 and select an appropriate rotation speed.

[0047] S5. According to the operating conditions, the servo motor 61 drives the lead screw 65 to further adjust the tension of the V-belt 5.

[0048] S6. Calculate the length value of the V-belt 5 based on the moving distance of the sliding pulley 22, the number of pulleys with which the V-belt 5 is hung, and the selected pulley diameters.

[0049] S7. Measure multiple times and take the average value of the length of the V-belt 5.

[0050] To make the technical solution provided in this embodiment clearer, the solution provided in this embodiment will be described in three scenarios:

[0051] Scenario 1: As Figure 12 shown, estimate the length of the measured V-belt 5, hang and sleeve the measured V-belt 5 on the fixed pulley 21 and the sliding pulley 22 at the upper end, start the servo motor 61, the servo motor 61 drives the lead screw 65, and the lead screw 65 drives the sliding pulley 22 to move left and right. At this time, the tension sensor 7 receives the tension from the sliding pulley 22 and transmits the tension data to the controller 4. The controller 4 gives corresponding adjustment data according to the model specifications of the measured V-belt 5, controls the forward and reverse rotation of the servo motor 61, and makes the sliding pulley 22 in a position with qualified tension; Next, give corresponding experimental rotation speed data according to the model specifications of the measured V-belt 5, start the pulley motor 24, and provide rotational power for the measured V-belt 5. Due to the elastic characteristics of the measured V-belt 5, the tension changes when the pulley motor 24 is started. At this time, the tension data measured by the tension sensor 7 also changes accordingly. The controller 4 further controls the rotation of the servo motor 61 according to the changed tension value and adjusts the displacement of the sliding pulley 22.

[0052] In addition, when the sliding pulley 22 moves leftward to near the fixed pulley 21, as the positions of the fixed pulley 21 and the sliding pulley 22 approach, the ultrasonic sensor 16 will transmit data to the controller 4 in real time, and when the center distance between the fixed pulley 21 and the sliding pulley 22 is one pulley diameter d, trigger the emergency stop mechanism of the servo motor 61 to prevent interference between the fixed pulley 21 and the sliding pulley 22.

[0053] According to the moving distance of the sliding pulley 22, the number of pulleys on which the measured V-belt 5 is hung and sleeved, and the selected pulley diameter, calculate the length value of the V-belt 5. The calculation formula is as follows:

[0054] ;

[0055] Where, is the length value of the V-belt 5 obtained from the i-th measurement; is the diameter of the selected pulley; the center distance between the fixed pulley 21 and the sliding pulley 22 is , is the center distance between the fixed pulley 21 and the sliding pulley 22 at the i-th measurement; i takes values 1, 2, 3...

[0056] Considering the situation of avoiding interference between the fixed pulley 21 and the sliding pulley 22, so .

[0057] Repeat the above measurement procedure multiple times to obtain multiple , take the average to obtain the final length of the measured V-belt 5.

[0058] Scenario 2: As Figure 13 shown, the difference from Scenario 1 is that an additional pulley 23 is added. The measured V-belt 5 is hung on the fixed pulley 21, the sliding pulley 22, and the lower left additional pulley 23. Start the servo motor 61 to make the sliding pulley 22 in the position with qualified tension. The calculation formula is as follows:

[0059] ；

[0060] where, is the length value of the V-belt 5 obtained in the i-th measurement; is the diameter of the selected pulley; is the center distance between the fixed pulley 21 and the sliding pulley 22 during the i-th measurement; is the center distance between the fixed pulley 21 and the lower left additional pulley 23, and this value is fixed; the center distance between the lower left additional pulley 23 and the sliding pulley 22 is , is the center distance between the lower left additional pulley 23 and the sliding pulley 22 during the i-th measurement; the central angle corresponding to the wrap angle of the V-belt 5 on the sliding pulley 22 is , is the central angle corresponding to the wrap angle of the V-belt 5 on the sliding pulley 22 during the i-th measurement; the central angle corresponding to the wrap angle of the V-belt 5 on the lower left additional pulley 23 is , is the central angle corresponding to the wrap angle of the V-belt 5 on the lower left additional pulley 23 during the i-th measurement; i takes values 1, 2, 3...

[0061] In addition, the calculation formula for the center distance value between the lower left additional pulley 23 and the sliding pulley 22 is as follows:

[0062] ;

[0063] Since the central connection lines of the fixed pulley 21, the sliding pulley 22, and the lower left additional pulley 23 form a right triangle, therefore , and the calculation formula for the final length of the V-belt 5 is as follows:

[0064] ；

[0065] Repeat the above measurement procedure multiple times to obtain multiple , take the average to obtain the final length of the measured V-belt 5.

[0066] Scenario 3: As Figure 14As shown, the difference from Scenario 1 is that two additional pulleys 23 are added. The V-belt 5 to be measured is hung on four pulleys (i.e., the fixed pulley 21, the sliding pulley 22, and two additional pulleys 23). Start the servo motor 61 to make the sliding pulley 22 in a position with qualified tension. The calculation formula is as follows:

[0067] ；

[0068] where, is the length value of the V-belt 5 obtained from the i-th measurement; is the diameter of the selected pulley; is the center distance between the fixed pulley 21 and the sliding pulley 22 during the i-th measurement; is the center distance between the fixed pulley 21 and the additional pulley 23 on the lower left side, and this value is fixed; the center distance between the two additional pulleys 23 at the lower end is ; is the center distance between the two additional pulleys 23 at the lower end; i takes values 1, 2, 3...

[0069] Repeat the above measurement procedure multiple times to obtain multiple , and take the average to obtain the final length of the V-belt 5 to be measured.

[0070] The measurement method has a small measurement error for the length of the V-belt 5, high measurement accuracy, and simple and convenient measurement process; the measurement efficiency of the V-belt 5 is high, the measurement time is short, and it can meet the requirements of large-scale production and rapid detection; it can adapt to the measurement of V-belts 5 of different specifications, and the measurement device has high versatility; the data recording is accurate.

[0071] Although the specific implementation manners of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A V-belt length measuring device, characterized in that: include: A frame, a guide rail assembly, a drive assembly and a pulley assembly, wherein the guide rail assembly and the drive assembly are respectively mounted on the front and rear sides of the frame; The pulley assembly comprises a fixed wheel, a sliding wheel and an additional wheel, wherein the fixed wheel is fixedly mounted on the frame, the sliding wheel is mounted on the guide rail assembly and connected to the driving assembly, the driving assembly can drive the sliding wheel to slide on the guide rail assembly, the additional wheel is detachably mounted on the frame, and the V-belt to be tested is wound around the pulley assembly and driven to rotate by the fixed wheel; The guide rail assembly comprises a slide rail and a slider, wherein the slide rail is fixedly mounted on the frame, and the slider is slidably mounted on the slide rail; The guide rail assembly has two groups, the two groups of guide rail assemblies are parallelly mounted on the frame, the sliding wheel is mounted on a sliding plate, and the two ends of the sliding plate are respectively mounted on the sliders of the two groups of guide rail assemblies; The driving assembly includes a ball screw nut pair, and the ball screw nut pair includes a screw and a ball nut body. The screw is arranged parallel to the slide rails and is located in the middle of the two slide rails. The ball nut body is installed on the screw. One side of the tension sensor is connected to the ball nut body, and the other side of the tension sensor is connected to the sliding plate.

2. The V-belt length measuring device according to claim 1, characterized in that: The frame includes a plurality of channel steels which are arranged in an H shape to form the main structure of the frame. A guide rail seat is provided at the upper end of the main structure. The guide rail assembly and the drive assembly are respectively mounted on the front and rear sides of the guide rail seat.

3. The V-belt length measuring device according to claim 2, characterized in that: The main structure of the frame is arranged obliquely, a bottom support is provided at the bottom of the main structure, and an oblique support is provided between the bottom support and the main structure.

4. The V-belt length measuring device according to claim 2, characterized in that: A first connecting seat is installed on the back side of the sliding plate, a second connecting seat is installed on the front side of the ball nut body, and a first connecting part and a second connecting part are respectively provided on both sides of the tension sensor. The first connecting seat is detachably connected to the first connecting part, and the second connecting seat is detachably connected to the second connecting part.

5. The V-belt length measuring device according to claim 4, characterized in that: The two ends of the back side of the guide rail seat are equipped with bearing seats, and the two ends of the lead screw are rotatably installed in the bearing seats at the two ends.

6. The V-belt length measuring device according to claim 4, characterized in that: The driving assembly also includes a servo motor, the output shaft of the servo motor is connected to the lead screw through a coupling; a motor seat is provided on one side of the guide rail seat, and a pulley motor for driving the fixed wheel to rotate is installed on the motor seat.

7. The V-belt length measuring device according to claim 1, characterized in that: The fixed wheel and the sliding wheel are located on the same horizontal line, and the sliding wheel can slide along the horizontal line close to or away from the fixed wheel. There are two additional wheels, and both additional wheels are located outside the horizontal line.

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