Center distance transverse swing calibration device for V-belt length measuring machine
The automatic calibration and self-lubricating design of the positioning gear and ratchet mechanism solves the problems of swaying deviation and wear during V-belt length measuring machine testing, thereby improving the accuracy of measurement and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-03
AI Technical Summary
V-belt length measuring machines are prone to swaying and deviation during testing due to center distance shifts, leading to inaccurate measurements. They are also prone to wear and tear during use, resulting in a short service life.
The swing calibration mechanism, which uses a positioning gear, ratchet, and electric telescopic rod, automatically calibrates and positions itself by pushing the cross plate with the electric telescopic rod to disengage the ratchet from the ratchet. At the same time, the self-lubricating mechanism, through the design of the cam rod and sealing plate, ensures uniform lubrication of the rack.
It achieves accuracy and stability in detection, avoids detection errors caused by lateral swaying, and extends the service life of the device by uniformly applying lubricating oil.
Smart Images

Figure CN224080957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of calibration device technology, specifically a lateral swing calibration device for the center distance of a V-belt length measuring machine. Background Technology
[0002] The V-belt length measuring machine center distance lateral swing calibration device is used to calibrate the V-belt length measuring machine. It is mainly used to ensure the accuracy of the length measuring machine during the measurement process. It ensures the accuracy of the measurement results by controlling and correcting the center distance and lateral swing error of the length measuring machine. Specifically, this device can simulate different working conditions and adjust the lateral position of the length measuring machine to calibrate the deviations that may occur in actual use, thereby improving the accuracy and reliability of the measurement.
[0003] In existing technologies, adjusting the spacing is relatively cumbersome. When using the machine, the distance to be positioned by the measuring machine is easily affected by shaking, which can lead to calibration errors.
[0004] To overcome the above shortcomings, a Chinese patent (publication number CN219084015U) discloses a high-precision length measuring machine calibration device, including a length measuring machine, a length measuring plate, and a placement platform. The top outer wall of the placement platform has an installation groove, and the same screw rod is rotatably installed on both inner walls of the installation groove. The screw rod has opposite threads. This overcomes the shortcomings of the prior art. Through the coordinated action of a motor, gear two, gear one, etc., starting the motor causes the output end of the motor to drive the rotating shaft to rotate. The rotation of the rotating shaft drives gear two to rotate, which in turn drives gear one to rotate. Gear one's rotation drives screw rod two to rotate, which in turn causes the two threaded plates to move closer together. The two threaded plates moving closer together cause the two sliding plates to move closer together. The distance between the two sliding plates can be adjusted according to the size of the gauge block, thus fixing gauge blocks of different sizes. When the required distance is reached, the motor is turned off.
[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation. For example, during testing, V-belt length measuring machines are prone to swinging and deviating due to center distance shifts. This deviation can lead to inaccuracies and make stable testing difficult. Furthermore, they are prone to wear and tear during use, resulting in a short service life. Utility Model Content
[0006] The purpose of this invention is to provide a lateral swing calibration device for the center distance of a V-belt length measuring machine, in order to solve the problems mentioned in the background art, where the V-belt length measuring machine is prone to swing deviation due to center distance movement during testing. The deviation can lead to inaccuracies in the length measuring machine, making it difficult to perform stable testing. Furthermore, the machine is prone to wear and has a short service life during use.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a transverse swing calibration device for the center distance of a V-belt length measuring machine, comprising a machine body and a detection end mounted on the upper end of the machine body; a positioning gear is provided on the outer side of the detection end, and a swing calibration mechanism is provided at the front end of the positioning gear; a mounting frame is provided on the outer side of the detection end, and a self-lubricating mechanism is provided inside the mounting frame.
[0008] Furthermore, the swing calibration mechanism is provided with a rack, and the inner side of the rack is fixedly installed on the surface of the machine body.
[0009] Furthermore, the positioning gear is rotatably mounted to the detection end, and a ratchet is fixedly mounted on the front end of the positioning gear.
[0010] Furthermore, an electric telescopic rod is installed at the front end of the detection end, and a horizontal plate is installed at the output end of the electric telescopic rod, and the shape of the horizontal plate is "L".
[0011] Furthermore, the lower end of the cross plate is provided with a ratchet, and a torsion spring is provided between the ratchet and the cross plate, and the lower end of the ratchet is engaged with a ratchet wheel.
[0012] Furthermore, the self-lubricating mechanism is provided with a guide tube, the upper end of which is connected to the bottom of the mounting frame, and the lower end of the mounting frame is inclined. A cam rod is rotatably mounted on the inner side of the mounting frame, and the inner side of the cam rod is fixedly mounted on the outer side of the ratchet.
[0013] Furthermore, an oil storage tank is fixedly installed on the upper end of the mounting bracket, and a guide rod is fixedly installed on the inner wall of the oil storage tank. A sealing plate is sleeved on the surface of the guide rod, and a sealing strip is provided at the lower end of the sealing plate. The lower end of the sealing plate is sealed to the inside of the oil storage tank through the sealing strip. A pressure spring is sleeved on the surface of the guide rod, and the upper and lower ends of the pressure spring are located between the guide rod and the sealing plate. The sealing plate corresponds to the cam rod.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. During use, the length of the object to be inspected is detected by the machine body and the upper detection end. During inspection, as the detection end moves, it drives the positioning gear. The lower end of the positioning gear meshes with the rack. When the electric telescopic rod is activated, it pushes the horizontal plate. The horizontal plate can drive the ratchet connected by the torsion spring, so that the ratchet disengages from the ratchet, achieving a free adjustment effect. This enables automatic calibration and positioning, avoids lateral sway that leads to inaccurate detection, and improves the efficiency of use.
[0016] 2. As the detection end moves, the positioning gear and ratchet rotate. When the ratchet rotates, it can drive the outer cam rod. When the cam rod rotates inside the mounting bracket, it can push the sealing plate inside the oil tank upward. Under the action of the pressure spring on the guide rod, the sealing plate is pressed. The sealing plate seals with the oil tank through the sealing strip, improving the sealing effect and preventing oil leakage.
[0017] Furthermore, when the cam rod is pressed upward, the sealing plate opens intermittently, and the oil inside the oil tank falls into the mounting bracket. The oil inside the mounting bracket falls onto the surface of the rack through the guide pipe, so that the rack can be evenly lubricated as the detection end moves. This allows for even application of lubricating oil, making the application convenient and eliminating the need for back-and-forth operations, thus simplifying the operation. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0019] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.
[0020] Figure 3 This is a front-view three-dimensional structural diagram of the rack of this utility model.
[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.
[0022] Figure 5 This is a top-view three-dimensional structural diagram of the horizontal plate of this utility model.
[0023] Figure 6 This is a cross-sectional three-dimensional structural diagram of the mounting bracket of this utility model.
[0024] Figure 7 This is a cross-sectional three-dimensional structural diagram of the sealing plate of this utility model.
[0025] In the diagram: 1. Body; 2. Detection end; 3. Positioning gear; 4. Rack; 5. Ratchet; 6. Electric telescopic rod; 7. Horizontal plate; 8. Ratchet; 9. Cam rod; 10. Mounting bracket; 11. Guide pipe; 12. Oil tank; 13. Guide rod; 14. Sealing plate; 15. Sealing strip; 16. Pressure spring. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Example 1: As Figures 1-6 The technical solution shown is a transverse swing calibration device for the center distance of a V-belt length measuring machine. To solve the problem of inconvenient calibration, it discloses: a machine body 1 and a detection end 2 installed on the upper end of the machine body 1; a positioning gear 3 is provided on the outer side of the detection end 2, and a swing calibration mechanism is provided at the front end of the positioning gear 3. The swing calibration mechanism is provided with a rack 4, and the inner side of the rack 4 is fixedly installed on the surface of the machine body 1. The positioning gear 3 is rotatably installed with the detection end 2, and a ratchet 5 is fixedly installed at the front end of the positioning gear 3. An electric telescopic rod 6 is installed at the front end of the detection end 2, and a horizontal plate 7 is installed at the output end of the electric telescopic rod 6. The horizontal plate 7 is "L" shaped, and a ratchet 8 is provided at the lower end of the horizontal plate 7. A torsion spring is provided between the ratchet 8 and the horizontal plate 7, and the lower end of the ratchet 8 is engaged with the ratchet 5.
[0028] In use, the length of the object to be detected is detected by the body 1 and the upper detection end 2. During detection, as the detection end 2 moves, it drives the positioning gear 3. The lower end of the positioning gear 3 engages with the rack 4. As the detection end 2 moves, the positioning gear 3 rotates, driving the ratchet 5 at the front end. As the detection end 2 moves outward, the ratchet 5 reverses. The reversed ratchet 5 is not blocked by the ratchet 8. When the detection end 2 reaches a specific detection position, the ratchet 8 engages with the ratchet 5, stopping the lateral swing. This achieves a correction effect. At the same time, by activating the electric telescopic rod 6, the electric telescopic rod 6 pushes the horizontal plate 7. The horizontal plate 7 drives the ratchet 8 connected by the torsion spring, causing the ratchet 8 to disengage from the ratchet 5, achieving a free adjustment effect. This enables automatic calibration and positioning, avoids inaccurate detection caused by lateral swing, and improves the efficiency of use.
[0029] Example 2: Figures 1-7The technical solution shown, based on Embodiment 1, discloses the following to address the problem of excessive wear: a mounting bracket 10 is provided on the outer side of the detection end 2, and a self-lubricating mechanism is provided inside the mounting bracket 10. The self-lubricating mechanism is provided with a guide pipe 11, and the upper end of the guide pipe 11 is connected to the bottom of the mounting bracket 10. The lower end of the mounting bracket 10 is inclined. A cam rod 9 is rotatably mounted on the inner side of the mounting bracket 10, and the inner side of the cam rod 9 is fixedly mounted on the outer side of the ratchet 5. An oil tank 12 is fixedly mounted on the upper end of the mounting bracket 10, and a guide rod 13 is fixedly mounted on the inner wall of the oil tank 12. A sealing plate 14 is sleeved on the surface of the guide rod 13, and a sealing strip 15 is provided at the lower end of the sealing plate 14. The lower end of the sealing plate 14 is sealed to the inside of the oil tank 12 through the sealing strip 15. A pressure spring 16 is sleeved on the surface of the guide rod 13, and the upper and lower ends of the pressure spring 16 are located between the guide rod 13 and the sealing plate 14. The sealing plate 14 corresponds to the cam rod 9.
[0030] As the detection end 2 moves, the positioning gear 3 and ratchet 5 rotate. When the ratchet 5 rotates, it drives the outer cam rod 9. When the cam rod 9 rotates inside the mounting frame 10, it pushes the sealing plate 14 inside the oil tank 12 upward. Under the action of the pressure spring 16 on the guide rod 13, the sealing plate 14 is pressed. The sealing plate 14 is sealed to the oil tank 12 through the sealing strip 15. When the cam rod 9 presses upward, the sealing plate 14 opens intermittently, and the oil inside the oil tank 12 falls into the mounting frame 10. The oil inside the mounting frame 10 falls into the surface of the rack 4 through the guide pipe 11. In this way, as the detection end 2 moves, the rack 4 is evenly lubricated, and the lubricating oil can be evenly applied, making the application convenient and simple without the need for back-and-forth operation.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A center distance transverse swing calibration device of a V-belt measuring machine, comprising a machine body (1) and a detection end (2) mounted on the upper end of the machine body (1). characterized in that An outer side of the detection end (2) is provided with a positioning gear (3), and a front end of the positioning gear (3) is provided with a swing calibration mechanism. An outer side of the detection end (2) is provided with a mounting rack (10), and an inner side of the mounting rack (10) is provided with a self-lubricating mechanism.
2. The center distance transverse swing calibration device for a V-belt measuring machine according to claim 1, characterized in that: The swing calibration mechanism is provided with a rack (4), and an inner side of the rack (4) is fixedly mounted on the surface of the machine body (1).
3. The center distance transverse swing calibration device for a V-belt measuring machine according to claim 1, characterized in that: The positioning gear (3) is rotatably mounted with the detection end (2), and a front end of the positioning gear (3) is fixedly mounted with a ratchet wheel (5).
4. The center distance transverse swing alignment device for a V-belt length measuring machine according to claim 3, characterized in that: A front end of the detection end (2) is mounted with an electric telescopic rod (6), an output end of the electric telescopic rod (6) is mounted with a horizontal plate (7), and the horizontal plate (7) is in the shape of an "L" letter.
5. The center distance transverse swing alignment device for a V-belt length measuring machine according to claim 4, characterized in that: A lower end of the horizontal plate (7) is provided with a ratchet (8), a torsion spring is arranged between the ratchet (8) and the horizontal plate (7), and the lower end of the ratchet (8) is meshingly mounted with the ratchet wheel (5).
6. The center distance transverse swing alignment device for a V-belt length measuring machine of claim 1 wherein: The self-lubricating mechanism is provided with a flow guide pipe (11), an upper end of the flow guide pipe (11) is communicated with the bottom of the mounting rack (10), a lower end of the mounting rack (10) is in an inclined shape, an inner side of the mounting rack (10) is rotatably mounted with a cam rod (9), and an inner side of the cam rod (9) is fixedly mounted on the outer side of the ratchet wheel (5).
7. The center distance transverse swing alignment device for a V-belt length measuring machine of claim 6, wherein: A lower end of the mounting rack (10) is fixedly mounted with an oil storage tank (12), an inner wall of the oil storage tank (12) is fixedly mounted with a guide rod (13), a surface of the guide rod (13) is sleeved with a sealing plate (14), a lower end of the sealing plate (14) is provided with a sealing strip (15), the lower end of the sealing plate (14) is sealed with the inner part of the oil storage tank (12) through the sealing strip (15), a surface of the guide rod (13) is sleeved with a pressure spring (16), the upper and lower ends of the pressure spring (16) are arranged between the guide rod (13) and the sealing plate (14), and the sealing plate (14) corresponds to the cam rod (9).
Citation Information
Patent Citations
High-precision length measuring machine calibration device
CN219084015U