Belt radial displacement measuring device and transmission equipment

Abstract

The utility model relates to the technical field of transmission equipment, in particular to a belt radial displacement measuring device and transmission equipment. The belt radial displacement measuring device comprises: a columnar lower shell, the top center of which is provided with a blind hole and the bottom surface of which is in contact with a belt; a mounting hole is formed in the center of the bottom of the upper shell, and the inner diameter of the mounting hole is larger than the outer diameter of the top of the lower shell; one end of the spring abuts against the end part of the blind hole of the lower shell, and the other end of the spring abuts against the end part of the mounting hole; the upper part of the lower shell is mounted in the mounting hole, and the mounting hole is in sliding fit with the peripheral side of the lower shell, so that after the belt radial displacement measuring device is pressed, the spring is compressed to the minimum length, the end surface of the mounting hole is propped against the top surface of the lower shell, and elastic force is applied to the belt. According to the method and the device, the relationship between the stress and the displacement of the belt can be more accurately determined, so that the tension of the belt can be quickly and accurately adjusted, the adjusting efficiency and accuracy of the belt can be improved, and the belt transmission efficiency, stability and safety are improved.

Description

Technical Field

[0001] This disclosure relates to the field of transmission equipment technology, specifically to a belt radial displacement measuring device and transmission equipment. Background Technology

[0002] For belt-driven equipment, the belt tension directly affects the equipment's operational stability and lifespan. Therefore, belt adjustment is necessary to achieve optimal transmission performance and prevent belt misalignment or deformation that could lead to poor transmission or slippage and transmission failure. Generally, belt adjustment relies on the sensory experience of technicians or uses the absence of slippage as a standard. However, this method fails to effectively quantify belt tension, resulting in significant adjustment errors. Alternatively, belt tension can be controlled by measuring the radial elongation, but current equipment cannot accurately measure radial elongation, leading to large measurement errors and poor accuracy. This negatively impacts the efficiency and accuracy of belt adjustment, resulting in low transmission efficiency, poor stability, and poor safety of the belt-driven equipment. Utility Model Content

[0003] To overcome the problems existing in related technologies, the first aspect of this disclosure provides a belt radial displacement measuring device for measuring the radial displacement of the belt. The belt radial displacement measuring device includes: a lower shell, which is columnar and has a blind hole at the center of its top, and a bottom surface for contacting the belt; an upper shell, which is columnar and has a mounting hole at the center of its bottom, the inner diameter of which is larger than the outer diameter of the top of the lower shell; and a spring, one end of which abuts against the end of the blind hole of the lower shell, and the other end of which abuts against the end of the mounting hole; wherein the upper part of the lower shell is mounted on the mounting hole, and the mounting hole slides with the outer peripheral side of the lower shell, so that when the belt radial displacement measuring device is pressed, the spring is compressed to its minimum length, so that the end face of the mounting hole abuts against the top surface of the lower shell, and the elastic force of the spring is applied to the belt.

[0004] In some embodiments, the upper part of the lower shell has a stepped surface, such that the outer diameter of the upper part of the lower shell is smaller than the outer diameter of the lower part of the lower shell; the bottom surface of the upper shell is used to abut against the stepped surface of the lower shell in the compressed state of the spring.

[0005] In some embodiments, the belt radial displacement measuring device further includes: a distance measuring mechanism disposed on the lower shell, for determining the radial displacement of the belt when the bottom surface of the upper shell abuts against the stepped surface of the lower shell.

[0006] In some embodiments, the ranging mechanism includes: a scale disposed on the periphery of the lower part of the lower shell, wherein laser through holes are provided on both sides of the lower part of the scale, for allowing laser to pass through the laser through holes as a reference, and determining the radial displacement of the belt based on the position of the laser irradiating the scale when the bottom surface of the upper shell abuts against the stepped surface of the lower shell; or, a laser emitting mechanism disposed in the lower part of the lower shell, for emitting laser to the frame of the belt, wherein the frame is provided with a scale, and determining the radial displacement of the belt based on the scale on the frame irradiated by the laser.

[0007] In some embodiments, the belt radial displacement measuring device includes an alerting element disposed on the bottom surface of the upper shell or the stepped surface, for emitting one or more of sound, light, or vibration when the bottom surface of the upper shell contacts the stepped surface.

[0008] In some embodiments, the inner wall of the mounting hole is provided with a plurality of grooves along the extension direction of the mounting hole; the outer periphery of the lower shell protrudes outward to form a plurality of protrusions, each of the protrusions being installed in the groove.

[0009] In some embodiments, the groove includes: a horizontal portion located at the lower part of the upper shell and extending along the circumferential side of the inner wall of the mounting hole; and a vertical portion, one end of which communicates with the end of the horizontal portion, and the other end extending vertically toward the upper part of the mounting hole.

[0010] In some embodiments, the belt radial displacement measuring device further includes: one or more shims disposed at the end of the spring and installed in the mounting hole and / or the blind hole.

[0011] In a second aspect, this disclosure also provides a transmission device, comprising: a belt for tensioning to transmit power or motion; a frame for mounting the belt; and a belt radial displacement measuring device as described in the first aspect for measuring the radial displacement of the belt.

[0012] In some embodiments, the lower housing is provided with a scale on its periphery; the frame includes a laser emitting device for emitting a laser to the belt radial displacement measuring device, and determining the radial displacement of the belt according to the scale illuminated by the laser.

[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0014] The belt radial displacement measuring device provided in this embodiment can directly determine the radial displacement of the belt through the scale set on the circumference of the lower shell, with small error and high accuracy in displacement measurement. A spring in the belt radial displacement measuring device, specifically a spring with a known relationship between pressure and compression, can be installed between the upper and lower shells. By pressing down on the upper shell, the spring is compressed, allowing the belt radial displacement measuring device to apply a definite force to the belt. Combined with the displacement determined by the scale on the lower shell, the relationship between the belt's force and displacement can be determined more accurately, enabling rapid and accurate adjustment of the belt tension during installation, commissioning, and maintenance. After determining the relationship between the belt's force and radial displacement using the belt radial displacement measuring device, the belt drive equipment can effectively improve the belt's adjustment efficiency and accuracy, significantly increasing the efficiency, stability, and safety of the adjusted belt drive. Attached Figure Description

[0015] This disclosure can be better understood by describing exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of a belt radial displacement measuring device according to an exemplary embodiment disclosed in a book.

[0017] Figure 2 This is a schematic diagram of the structure of a belt radial displacement measuring device according to another exemplary embodiment disclosed;

[0018] Figure 3 This is a cross-sectional view of a belt radial displacement measuring device according to an exemplary embodiment disclosed in a publication;

[0019] Figure 4 This is a schematic diagram of the upper shell structure shown according to an exemplary embodiment disclosed in a book;

[0020] Figure 5 This is a schematic diagram of the transmission device structure shown according to another exemplary embodiment disclosed;

[0021] Figure 6 This is a schematic diagram of a partial structure of a transmission device according to another exemplary embodiment disclosed. Detailed Implementation

[0022] The following describes specific embodiments of this disclosure. It should be noted that, in order to maintain brevity, this specification cannot provide a detailed description of all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content of this disclosure, changes in design, manufacturing, or production based on the technical content disclosed herein are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0023] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this utility model patent application description and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the element or object preceding “comprising” or “including” encompasses the element or object listed following “comprising” or “including” and its equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0024] To solve the above technical problems, such as Figure 1 As shown, an embodiment of this disclosure provides a belt radial displacement measuring device 100 for measuring the radial displacement of a belt 210. The belt radial displacement measuring device 100 may include a lower shell 110, an upper shell 120, and a spring 130.

[0025] The lower shell 110 is columnar, with a blind hole 111 at the center of the top, and its bottom surface is used to contact the belt 210. (Example) Figure 1 , Figure 2As shown, the lower shell 110 can be cylindrical, with a blind hole 111 at the center of its top for mounting the spring 130. The inner diameter of the blind hole 111 can be the same as the outer diameter of the spring 130, thus ensuring that the spring 130 is stably mounted in the blind hole 111. This prevents the spring 130 from radially shifting, which could lead to uneven force distribution. It also ensures that the spring 130 remains in a balanced state during the measurement of the radial displacement of the belt 210 using the belt radial displacement measuring device 100. Figure 2 , Figure 6 As shown, the bottom surface of the lower shell 110 is used to abut against the belt 210. The user can hold the belt radial displacement measuring device 100 and make the bottom surface of the lower shell 110 abut against the surface of the belt 210. By pressing the belt 210 with the bottom surface of the lower shell 110, the belt 210 is deformed by radial pressure.

[0026] The upper shell 120 is cylindrical, with a mounting hole 121 at the center of its bottom. The inner diameter of the mounting hole 121 is larger than the outer diameter of the top of the lower shell 110. The upper shell 120 can be cylindrical, and its outer diameter can be larger than that of the lower shell 110. Figure 3 As shown, a mounting hole 121 can be provided at the bottom center of the upper shell 120, allowing the lower shell 110 to be at least partially disposed in the mounting hole 121. The inner diameter of the mounting hole 121 of the upper shell 120 can be larger than the outer diameter of the top of the lower shell 110, allowing the lower shell 110 and the upper shell 120 to move relative to each other, and allowing the upper part of the lower shell 110 to slide within the mounting hole 121. Figures 1 to 3 As shown, specifically, the mounting hole 121 of the upper shell 120 can be formed with an annular stepped plane, so that the inner diameter of the upper part of the mounting hole 121 is smaller than the inner diameter of the lower part of the mounting hole 121, and the spring 130 can abut against the top surface of the mounting hole 121. The spring 130 is at least partially disposed in the mounting hole 121, so that one end face of the spring 130 can abut against the top surface of the mounting hole 121, and the other end face abuts against the end face of the blind hole 111 of the lower shell 110. The inner diameter of the mounting hole 121 can be greater than or equal to the outer diameter of the spring 130, so that the user can press the top surface of the mounting hole 121 downwards to press the spring 130 after pressing the upper shell 120. When the upper shell 120 and the lower shell 110 abut against each other, the spring 130 reaches the maximum compression. In this process, radial displacement of the spring 130 can be effectively avoided, and the uneven force on the spring 130 can be avoided to prevent displacement. The mounting hole 121 can effectively limit the radial position of the spring 130. The lower part of the mounting hole 121 is used to accommodate the lower shell 110, such that the inner diameter of the mounting hole 121 is larger than the outer diameter of the top of the lower shell 110, thereby enabling the lower shell 110 to slide back and forth within the mounting hole 121 along the extension direction of the mounting hole 121.

[0027] Spring 130 has one end abutting against the end of blind hole 111 in lower housing 110, and the other end abutting against the end of mounting hole 121. For example... Figure 2, Figure 3 As shown, spring 130 can be disposed between upper shell 120 and lower shell 110, with one side of spring 130 disposed within mounting hole 121 of upper shell 120 and the other side disposed within blind hole 111 of lower shell 110. One end of spring 130 abuts against the end face of blind hole 111, and the other end of spring 130 abuts against the end face of mounting hole 121. When the user presses the bottom surface of lower shell 110 against the surface of belt 210 and presses down on upper shell 120, spring 130 is compressed by the pressure of upper shell 120. When the user stops pressing upper shell 120, spring 130 returns to its original length. The relationship between the elastic deformation of spring 130 and the force is known, and a suitable spring 130 can be pre-selected based on the magnitude of the clamping force when springs 130 of different specifications are compressed to their minimum length. Since the upper part of the lower shell 110 has a limited range of sliding within the upper shell 120 after installation, the compression of the spring 130 is limited by the upper shell 120 and the lower shell 110 when the top of the lower shell 110 abuts against the end face of the mounting hole 121. Therefore, the minimum length of the spring 130 can be the minimum length that the spring 130 can reach after being pressed when installed between the upper shell 120 and the lower shell 110.

[0028] The upper part of the lower shell 110 is mounted in the mounting hole 121. The mounting hole 121 slides with the outer periphery of the lower shell 110, so that when the belt radial displacement measuring device 100 is pressed, the spring 130 is compressed to its minimum length, causing the end face of the mounting hole 121 to abut against the top surface of the lower shell 110, applying the elastic force of the spring 130 to the belt 210. The upper part of the lower shell 110 can be installed in the mounting hole 121, which can accommodate the upper part of the lower shell 110, allowing the outer periphery of the lower shell 110 to slide with the mounting hole 121. The upper part of the lower shell 110 can slide back and forth in the mounting hole 121 along its extension direction. The spring 130 can be partially disposed in the blind hole 111 of the lower shell 110 and partially disposed in the mounting hole 121 of the upper shell 120. Specifically, the mounting hole 121 can be formed with an annular stepped plane, such that the inner diameter of the upper part of the mounting hole 121 is smaller than the inner diameter of the lower part of the mounting hole 121. The inner diameter of the upper part of the mounting hole 121 can match the outer diameter of the spring 130, allowing one side of the spring 130 to be installed in the mounting hole 121, with one end of the spring 130 abutting against the end face of the mounting hole 121. The other side of the spring 130 can be installed in the blind hole 111, allowing the other end of the spring 130 to abut against the end face of the blind hole 111. Figure 6As shown, when the user measures the elasticity and radial deformation of the belt 210 using the belt radial displacement measuring device 100, the bottom surface of the lower shell 110 can be brought into contact with the surface of the belt 210, and the upper shell 120 can be pressed in a direction perpendicular to the plane of the belt 210. This causes the belt radial displacement measuring device 100 to press the belt 210 down until a displacement occurs in a direction perpendicular to the plane of the belt 210, i.e., a radial displacement of the belt 210. The user can press the belt radial displacement measuring device 100 until the spring 130 is compressed to its minimum length, so that the end face of the mounting hole 121 abuts against the top surface of the lower shell 110. Specifically, when the mounting hole 121 forms an annular stepped plane, the annular stepped plane of the mounting hole 121 can be brought into contact with the top surface of the lower shell 110, at which point the spring 130 is compressed to its minimum length. Since the relationship between the compression of the spring 130 and the force is known, the magnitude of the force exerted by the bottom of the lower shell 110 of the belt radial displacement measuring device 100 on the belt 210 can be determined. At this point, the distance the belt 210 moves in the radial direction after being compressed can be determined based on the distance the bottom surface of the lower shell 110 of the belt radial displacement measuring device 100 moves. This allows for a more accurate determination of the relationship between the force and displacement of the belt 210, providing a basis for subsequent adjustments to the belt 210. This reduces the time required for installation and adjustment, effectively improving the efficiency and accuracy of belt adjustment, and enabling faster adjustment of the belt 210 to meet user needs. The lower shell 110 of the belt radial displacement measuring device 100 can be equipped with structures such as scales for determining its movement distance. Furthermore, the belt radial displacement measuring device 100 has a simple structure and small size. Users can hold the device and directly measure the belt 210 already installed in the transmission equipment, making measurement simpler, more convenient, and more efficient. It also eliminates the need for frequent installation and disassembly, making it portable, highly mobile, and adaptable to various transmission equipment.

[0029] The belt radial displacement measuring device 100 provided in this disclosure allows the bottom surface of the lower housing 110 to abut against the belt 210. The user presses the belt radial displacement measuring device 100 to apply force to the belt 210 and measure its distance. A spring 130 with a known compression-force relationship is used. One end of the spring 130 is installed in the blind hole 111 of the lower housing 110, and the other end abuts against the top surface of the mounting hole 121 of the upper housing 120. The compression range of the spring 130 is limited by the upper housing 120 and the lower housing 110. This allows the user to press down the upper housing 120 until it abuts against the lower housing 110, making the compression of the spring 130 a fixed value. The upper housing 120 and the lower housing 110 limit the movement of the spring 130, thus ensuring that the force applied to the belt 210 is controllable and can be a fixed value. While applying force to the belt 210 through the belt radial displacement measuring device 100, the radial displacement of the belt 210 under this force can be directly determined by the belt radial displacement measuring device 100. This allows for a simpler and faster determination of the precise correspondence between the force and radial displacement of the belt 210. Consequently, during subsequent installation, commissioning, and maintenance of the belt 210, the tension of the belt 210 can be adjusted quickly and accurately, improving the efficiency and accuracy of belt 210 parameter measurement. The belt radial displacement measuring device 100 provided in this disclosure is small in size and lightweight, and can be operated by hand. It allows for rapid measurement of the installed belt 210 in the transmission equipment without disassembling the device, resulting in higher measurement efficiency and adaptability. Furthermore, the force applied to the belt 210 and the radial displacement of the belt 210 measured by the belt radial displacement measuring device 100 provided in this disclosure have high accuracy. After adjusting the tension of the belt 210 based on the force applied to the belt 210 and the radial displacement of the belt 210 measured by the belt radial displacement measuring device 100 provided in this disclosure, the efficiency, working stability and operation safety of the belt 210 transmission system can be effectively improved.

[0030] In some embodiments, such as Figure 2 , Figure 3As shown, a stepped surface 112 is formed on the upper part of the lower shell 110, so that the outer diameter of the upper part of the lower shell 110 is smaller than the outer diameter of the lower part of the lower shell 110; the bottom surface of the upper shell 120 is used to abut against the stepped surface 112 of the lower shell 110 in the compressed state of the spring 130. The upper part of the lower shell 110 can be recessed to form a stepped surface 112, so that the outer diameter of the upper part of the lower shell 110 is smaller than the outer diameter of the lower part of the lower shell 110. A horizontal stepped surface 112 is formed between the upper part and the lower part of the lower shell 110, so that the upper part and the lower part of the lower shell 110 are connected to each other to form a complete lower shell 110. The upper part of the lower shell 110 can be installed in the mounting hole 121 in the upper part of the lower shell 110. The outer diameter of the upper part of the lower shell 110 can be smaller than the inner diameter of the mounting hole 121, so that the upper part of the lower shell 110 can slide back and forth in the mounting hole 121 along the extension direction of the mounting hole 121, so that the lower shell 110 and the upper shell 120 can move relative to each other, changing the positional relationship between the lower shell 110 and the upper shell 120. The upper part of the lower shell 110 can taper inward, forming an annular stepped surface 112. The outer diameter of the upper part of the lower shell 110 is the inner radius of the stepped surface 112, and the outer diameter of the lower part of the lower shell 110 is the outer radius of the stepped surface 112. Therefore, the outer diameter of the upper part of the lower shell 110 can be smaller than the outer diameter of the lower part. The upper part of the lower shell 110 with its smaller outer diameter can be installed in the mounting hole 121 of the upper shell 120. The inner diameter of the mounting hole 121 can be larger than the outer diameter of the upper part of the lower shell 110, allowing the portion of the lower shell 110 installed in the mounting hole 121 to slide within it. When the belt radial displacement measuring device 100 is not subjected to external force, the upper part of the lower shell 110 is positioned within the mounting hole 121, with the bottom surface of the upper shell 120 spaced apart from the stepped surface 112 of the lower shell 110. Figure 2 , Figure 6As shown, during the measurement process, the belt radial displacement measuring device 100 is set perpendicular to the belt 210, that is, along the radial direction of the belt 210, and the bottom surface of the lower shell 110 abuts against the belt 210. When the user presses down on the upper shell 120, the spring 130 is compressed, and the bottom surface of the upper shell 120 gradually approaches the stepped surface 112 of the lower shell 110. At the same time, the contact portion between the belt 210 and the bottom surface of the lower shell 110 is subjected to force, resulting in radial displacement. The moment when the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110 indicates that the spring 130 can no longer be compressed, and at this time, the spring 130 can be at its minimum length. In this case, the pressure on the belt 210 is the force value corresponding to the current compression of the spring 130. Therefore, in this case, the radial movement distance of the belt 210 can be determined based on the downward movement distance of the bottom of the lower shell 110, thereby further determining the relationship between the radial movement distance of the belt 210 and the force it experiences. Specifically, when the mounting hole 121 forms an annular stepped plane, the compression of the spring 130 causes the bottom surface of the upper shell 120 to abut against the stepped surface 112 of the lower shell 110, while the annular stepped plane of the mounting hole 121 can abut against the top surface of the lower shell 110. Furthermore, the bottom surface of the upper shell 120 can be extended outwards to form a ring shape, allowing the user to more clearly observe and feel the separation and contact between the bottom surface of the upper shell 120 and the stepped surface 112 of the lower shell 110. This enables timely adjustment of the force applied to the upper shell 120, preventing errors in judging the radial displacement and force relationship of the belt 210 due to excessive or insufficient force.

[0031] According to the belt radial displacement measuring device 100 provided in this disclosure, the compression of the spring 130 can be controlled by the distance between the stepped surface 112 of the lower shell 110 and the bottom surface of the upper shell 120. When the user presses the upper shell 120 until the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the compression of the spring 130 is a fixed value. This ensures that the force applied by the belt radial displacement measuring device 100 to the belt 210 is a fixed value, avoiding the situation where the applied force is too large or too small, which would lead to an incorrect judgment of the relationship between the radial displacement of the belt 210 and the magnitude of the force. This allows for a more accurate determination of the relationship between the force and the displacement of the belt 210, enabling the rapid and accurate adjustment of the belt tension during installation, commissioning, and maintenance.

[0032] In some embodiments, the belt radial displacement measuring device 100 may further include a distance measuring mechanism disposed on the lower housing 110, used to determine the radial displacement of the belt 210 when the bottom surface of the upper housing 120 abuts against the stepped surface 112 of the lower housing 110. The distance measuring mechanism, disposed on the lower housing 110, can compare the position of the lower housing 110 when the upper housing 120 is not subjected to external force, and the position of the lower housing 110 when the user applies external force to the upper housing 120, causing the bottom surface of the upper housing 120 to abut against the stepped surface 112 of the lower housing 110, thereby determining the radial distance of the belt 210 when the bottom surface of the upper housing 120 abuts against the stepped surface 112 of the lower housing 110. Since the bottom surface of the lower housing 110 abuts against the belt 210, the distance measuring mechanism can further determine the radial displacement of the belt 210 by determining the displacement of the lower housing 110 along the radial direction of the belt 210. The distance measuring mechanism can determine the radial displacement of the belt 210 based on the distance the bottom of the lower shell 110 moves along the radial direction of the belt 210. The distance measuring mechanism can also first determine the first plane in the transmission device where the belt 210 is tensioned, and the position of the belt radial displacement measuring device 100 corresponding to the first plane when the user presses the upper shell 120 to cause radial displacement of the belt 210. This allows for a more accurate determination of the radial displacement of the belt 210 after being subjected to force. The magnitude of the force can be determined based on the deformation of the spring 130 of the belt radial displacement measuring device 100.

[0033] According to the belt radial displacement measuring device 100 provided in this disclosure, the actual radial displacement of the belt 210 can be directly determined based on the contact between the bottom surface of the upper shell 120 and the stepped surface 112 of the lower shell 110 using a distance measuring mechanism. Since the measuring mechanism measures the displacement occurring at the position of the lower shell 110, and the bottom surface of the lower shell 110 directly contacts the belt 210, measurement errors can be effectively reduced, avoiding measurement errors caused by unevenness of the belt 210 surface, thereby improving the accuracy and reliability of the radial displacement measurement of the belt 210. By setting up the distance measuring mechanism, the user only needs to apply an external force to the upper shell 120 to make its bottom surface contact the stepped surface 112 of the lower shell 110 to apply a fixed force to the belt 210 and simultaneously measure the radial displacement of the belt 210. The entire measurement process is simpler and more convenient, lowering the operating threshold and effectively improving the measurement efficiency of the radial displacement of the belt 210.

[0034] In some embodiments, the ranging mechanism may include a scale 113 disposed on the periphery of the lower part of the lower housing 110 or a laser emitting mechanism.

[0035] like Figure 2、 Figure 3As shown, the ranging mechanism may include a scale 113 disposed on the periphery of the lower part of the lower shell 110. Laser through holes 114 are provided on both sides of the lower part of the scale 113, allowing the laser to pass through the laser through holes 114 as a reference. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the radial displacement of the belt 210 is determined based on the position of the laser irradiation on the scale 113. The scale 113 may be disposed on the periphery of the lower part of the lower shell 110, either around the lower periphery of the lower shell 110 or on one or both sides of the lower part of the lower shell 110. Laser through holes 114 may be provided below the scale 113 of the lower shell 110 for the laser to pass through, so that the radial distance of the belt 210 can be directly read by irradiating the scale 113 with the laser. Laser vias 114 can be positioned on either side of the 0-degree mark, and the graduations 113 above the laser vias 114 can gradually increase from bottom to top. When the bottom surface of the lower housing 110 of the belt radial displacement measuring device 100 is in contact with the surface of the belt 210, an external device can emit a laser beam into the belt radial displacement measuring device 100. The laser beam passes through the laser vias 114 as a reference, thus aligning the belt radial displacement measuring device 100. When the bottom surface of the lower housing 110 of the belt radial displacement measuring device 100 is in contact with the surface of the belt 210 and the laser beam passes through the laser vias 114, it can be determined that the belt radial displacement measuring device 100 is in the correct position, and the radial displacement of the belt 210 can be accurately measured. The laser emitted by the external device can be a point laser; two point laser sources can be provided, each passing through one of the two laser vias 114 for alignment. Subsequently, the user can apply pressure to the upper housing 120 radially along the belt 210, causing the upper housing 120 to transmit the pressure to the spring 130, compressing the spring 130 and causing the lower housing 110 to press down on the belt 210. That is, the lower housing 110 applies pressure to the belt 210 radially, causing the belt 210 to deform radially. When the bottom surface of the upper housing 120 abuts against the stepped surface 112 of the lower housing 110, the two point laser beams irradiating the lower housing 110 can be connected, and the corresponding scale value on the lower housing 110 can be read as the radial displacement of the belt 210. The laser emitted by the external device can also be a linear laser, irradiating the lower housing 110 and passing through two laser vias 114 for alignment. Subsequently, the user can apply pressure to the upper shell 120 radially along the belt 210, causing the upper shell 120 to transmit the pressure to the spring 130, compressing the spring 130 and causing the lower shell 110 to press down on the belt 210. That is, the lower shell 110 applies pressure to the belt 210 radially, causing the belt 210 to deform radially. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the scale value at the corresponding position irradiated by the linear laser on the lower shell 110 can be read as the radial displacement value of the belt 210.

[0036] A laser emitting mechanism, located at the lower part of the lower housing 110, emits a laser beam onto the frame 220 of the belt 210. The frame 220 has graduations; the radial displacement of the belt 210 is determined based on the laser beam illuminating the graduations on the frame 220. The lower part of the lower housing 110 may house the laser emitting mechanism, and the frame 220 for mounting the belt 210 may have graduations extending perpendicularly to the plane of the belt 210, with the corresponding values ​​gradually increasing from top to bottom. When the bottom surface of the lower housing 110 of the belt radial displacement measuring device 100 is in contact with the surface of the belt 210, the laser emitted by the laser emitting mechanism can illuminate the zero mark at the top of the graduations on the frame 220. When the user applies pressure to the upper housing 120 along the radial direction of the belt 210, the upper housing 120 transmits the pressure to the spring 130, causing the spring 130 to compress and the lower housing 110 to press down on the belt 210. That is, the lower housing 110 applies pressure to the belt 210 along its radial direction, causing the belt 210 to deform radially. The belt radial displacement measuring device 100 moves downward along the radial direction of the belt 210, causing the position where the laser emitted by the laser emitting mechanism illuminates the scale set on the frame 220 to shift downward. The corresponding scale on the frame illuminated by the laser emitted by the laser emitting mechanism can be read as the value of the radial displacement of the belt 210.

[0037] According to the belt radial displacement measuring device 100 provided in this embodiment, by setting a scale or laser emission mechanism on the lower shell 110 as a ranging mechanism, the radial displacement of the belt 210 abutting against the bottom surface of the lower shell 110 can be further determined by determining the displacement of the lower shell 110. The scale value corresponding to the laser can be directly read as the radial displacement of the belt 210, which is simple to read, effectively reduces measurement error, and improves the accuracy of the radial displacement measurement of the belt 210. By setting a laser through hole 114 in the lower part of the lower shell 110, the belt radial displacement measuring device 100 can be quickly aligned, and the process is simple and fast, effectively reducing the time spent on alignment and improving the accuracy and efficiency of the radial displacement measurement of the belt 210.

[0038] In some embodiments, the belt radial displacement measuring device 100 may include an alerting element disposed on the bottom surface or stepped surface 112 of the upper shell 120, for emitting one or more of sound, light, or vibration when the bottom surface of the upper shell 120 contacts the stepped surface 112. Because the deformation of the spring 130 is limited by the upper shell 120 and the lower shell 110 during the process of the user pressing the upper shell 120 of the belt radial displacement measuring device 100 until the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the maximum force that the belt radial displacement measuring device 100 can determine is the force value at the moment the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110. If the user continues to apply force to the upper shell 120 at this time, the radial displacement of the belt 210 increases, while the magnitude of the force determined by the belt radial displacement measuring device 100 remains unchanged, which can easily lead to a large difference between the detected relationship between the force and radial displacement of the belt 210 and the actual value. This can easily lead to inaccurate adjustments to the belt 210 based on the relationship between the force and radial displacement, affecting the transmission efficiency and safety of the adjusted belt 210. Therefore, a reminder element can be set to remind the user to stop applying greater force when the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, ensuring that the detected force and radial displacement of the belt 210 and their relationship are consistent with reality. The reminder element can be a component capable of emitting sound, light, or vibration to remind the user. The reminder element can be a sound-emitting unit, and a contact sensor can be set on the bottom surface of the upper shell 120. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the stepped surface 112 of the lower shell 110 touches the contact sensor on the bottom surface of the upper shell 120. The contact sensor can detect the contact between the bottom surface of the upper shell 120 and the stepped surface 112 of the lower shell 110, thereby connecting the circuit of the sound-emitting unit and emitting a sound to remind the user to stop applying greater force. A contact sensor can also be disposed on the stepped surface 112 of the lower shell 110. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the bottom surface of the upper shell 120 touches the contact sensor disposed on the stepped surface 112 of the lower shell 110. The contact sensor can detect that the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, thereby connecting the circuit of the sound unit and emitting a sound through the sound unit to remind the user to stop applying greater force.

[0039] The alerting element can also be a vibrating element installed on the belt radial displacement measuring device 100. It vibrates when the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, allowing the user to feel the vibration of the belt radial displacement measuring device 100. This serves as a prompt that the bottom surface of the upper shell 120 is in contact with the stepped surface 112 of the lower shell 110, prompting the user to stop applying greater force. The vibrating element can be an electromagnetic vibrator. A contact sensor can be installed on the bottom surface of the upper shell 120. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the stepped surface 112 of the lower shell 110 contacts the contact sensor on the bottom surface of the upper shell 120. The contact sensor detects the contact, thus connecting the circuit of the vibrating element. The vibration of the vibrating element then alerts the user to stop applying greater force. A contact sensor can also be disposed on the stepped surface 112 of the lower shell 110. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the bottom surface of the upper shell 120 touches the contact sensor disposed on the stepped surface 112 of the lower shell 110. The contact sensor can detect that the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, thereby connecting the circuit of the vibration element and reminding the user to stop applying greater force through the vibration of the vibration element.

[0040] The reminder element can also be a vibrating element, such as a light strip or a light bulb, installed on the belt radial displacement measuring device 100. A contact sensor can be installed on the bottom surface of the upper shell 120. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the stepped surface 112 of the lower shell 110 touches the contact sensor installed on the bottom surface of the upper shell 120. The contact sensor can detect that the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, thereby connecting the circuit of the light-emitting element and emitting light through the light-emitting element to remind the user to stop applying greater force. A contact sensor can also be disposed on the stepped surface 112 of the lower shell 110. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the bottom surface of the upper shell 120 touches the contact sensor disposed on the stepped surface 112 of the lower shell 110. The contact sensor can detect that the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, thereby connecting the circuit of the light-emitting element and emitting light through the light-emitting element to remind the user to stop applying greater force.

[0041] According to the belt radial displacement measuring device 100 provided in this embodiment, by setting a reminder element, it can promptly remind the user to stop applying pressure through sound, light, or vibration when the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110. This prevents excessive deformation of the belt 210 due to the applied external force exceeding the maximum force that the belt radial displacement measuring device 100 can determine. This ensures that the recorded force-displacement relationship more accurately reflects the actual deformation state of the belt 210 after being compressed, improving the reliability and validity of the measurement data. Consequently, the belt tension can be quickly and accurately adjusted during installation, commissioning, and maintenance of the belt 210, improving the efficiency and accuracy of belt parameter measurement.

[0042] In some embodiments, such as Figure 3 , Figure 4 As shown, the inner wall of the mounting hole 121 has multiple grooves 122 extending along the direction of the mounting hole 121; the outer periphery of the lower shell 110 has multiple protrusions 115 protruding outward, each protrusion 115 corresponding to a groove 122. Since the lower shell 110 can be partially installed in the mounting hole 121 and can slide back and forth within the mounting hole 121 along its extending direction, it may rotate while sliding along the mounting hole 121. This could cause relative rotation between the mounting hole 121 and the lower shell 110, making it prone to slippage and affecting the stability and safety of the detection device during the detection process. Therefore, multiple grooves 122 can be formed on the inner wall of the mounting hole 121, and these grooves 122 can be formed along the extending direction of the mounting hole 121. The outer periphery of the lower shell 110 can protrude outward to form protrusions 115 corresponding to the number of grooves 122. The size of the protrusions 115 and the grooves 122 can be matched with each other, so that each protrusion 115 can be installed in the groove 122. The relative rotation between the mounting hole 121 and the lower shell 110 is restricted by the matching of the grooves 122 and the protrusions 115, so as to prevent the mounting hole 121 from slipping off the lower shell 110 and improve the safety of the belt radial displacement measuring device 100 during the measurement process.

[0043] According to the belt radial displacement measuring device 100 provided in this embodiment, multiple grooves 122 are provided on the inner wall of the mounting hole 121 along the extension direction of the mounting hole 121, and protrusions 115 corresponding to the grooves 122 are provided on the outer periphery of the lower shell 110. This effectively restricts the rotation of the lower shell 110 within the mounting hole 121, preventing the lower shell 110 from accidentally rotating and slipping due to force or vibration during the measurement process. This ensures that the belt radial displacement measuring device 100 maintains a stable posture during measurement, and constrains the lower shell 110 to slide linearly only along the extension direction of the mounting hole 121, avoiding detection errors caused by relative rotation between the upper shell 120 and the lower shell 110, thus effectively improving detection accuracy. In addition, the grooves 122 and protrusions 115 have a simple structural design, low manufacturing and processing costs, and are convenient for production, use, and maintenance.

[0044] In some embodiments, such as Figure 4 As shown, the groove 122 may include a horizontal portion 1221 and a vertical portion 1222.

[0045] A horizontal portion 1221, located at the lower part of the upper shell 120, extends along the circumferential side of the inner wall of the mounting hole 121. The horizontal portion 1221 can be located below the mounting hole 121 of the upper shell 120, and one end of the horizontal portion 1221 can have a downward extension 1223 extending to the bottom surface of the upper shell 120. The protrusion 115 of the lower shell 110 can enter the horizontal portion 1221 of the groove 122 through the extension 1223. The main body of the horizontal portion 1221 can extend along the circumferential side of the inner wall of the mounting hole 121, and the horizontal portion 1221 can be parallel to the bottom surface of the upper shell 120. The protrusion 115 of the lower shell 110 can enter the groove 122 through the extension 1223, and then rotating the upper shell 120 allows the protrusion 115 to enter the horizontal portion 1221. Specifically, when the protrusion 115 enters the groove 122 from the extension 1223, the user can fix the lower shell 110 and rotate the upper shell 120 by 90 degrees, so that the protrusion 115 is installed on the horizontal part 1221 and located at the end of the horizontal part 1221 away from the extension 1223. When the user releases the upper shell 120, the spring 130 applies a spring force to the lower shell 110, which allows the protrusion 115 to be restricted by the side wall of the horizontal part 1221 in the extending direction of the mounting hole 121 under the action of the spring 130. This prevents the protrusion 115 from sliding out of the groove 122 along the extending direction of the mounting hole 121, thus achieving stable installation of the lower shell 110 and the upper shell 120, effectively preventing the lower shell 110 from slipping out of the mounting hole 121, and improving the structural stability and safety of the belt radial displacement measuring device 100.

[0046] The vertical portion 1222 has one end connected to the end of the horizontal portion 1221, and the other end extends vertically upward toward the mounting hole 121. One end of the vertical portion 1222 can be connected to the end of the horizontal portion 1221 away from the extension portion 1223. The vertical portion 1222 can extend vertically, that is, along the extension direction of the mounting hole 121, toward the mounting hole 121. The vertical portion 1222 can be perpendicular to the horizontal portion 1221. When the protrusion 115 is located at one end of the horizontal portion 1221, the lower shell 110 can slide upward, causing the protrusion 115 to slide along the extension direction of the vertical portion 1222 to the end of the vertical portion 1222. In this case, the distance from the end of the vertical portion 1222 to the bottom surface of the lower shell 110 can be the maximum compression of the spring 130. When the bottom surface of the upper shell 120 can abut against the stepped surface 112 of the lower shell 110, the protrusion 115 can also abut against the end of the vertical part 1222. In this state, the compression of the spring 130 can reach its maximum compression.

[0047] According to the belt radial displacement measuring device 100 provided in this embodiment, the protrusion 115 of the lower shell 110 can be quickly inserted into the groove 122 and enter the horizontal part 1221 through the extension 1223 of the groove 122, achieving rapid positioning. By rotating the upper shell 120, the protrusion 115 can be installed at the end of the horizontal part 1221 away from the extension 1223. The spring 130 can restrict the protrusion 115 at one end of the horizontal part 1221, preventing the protrusion 115 from sliding out of the groove 122 along the extension direction of the mounting hole 121, effectively preventing the lower shell 110 from slipping out of the mounting hole 121, and improving the structural stability, reliability and safety of the belt radial displacement measuring device 100. By providing the vertical part 1222, the protrusion 115 of the lower shell 110 can slide along the vertical part 1222, thereby limiting the possible rotation of the lower shell 110 in the mounting hole 121. When the protrusion 115 reaches the upper end of the vertical part 1222, it can prevent the lower shell 110 from moving upward. At this time, the bottom surface of the upper shell 120 and the stepped surface 112 of the lower shell 110 can abut against each other, thereby further limiting the maximum compression of the spring 130. This ensures that the pressure applied to the surface of the belt 210 by the belt radial displacement measuring device 100 remains consistent during each displacement measurement, thereby improving the overall assembly reliability and measurement accuracy of the belt radial displacement measuring device 100.

[0048] In some embodiments, such as Figure 2 , Figure 3As shown, the belt radial displacement measuring device 100 may further include one or more shims 140 disposed at the end of the spring 130 and installed in the mounting hole 121 and / or blind hole 111. The shim 140 may be disposed at the end of the spring 130, and may be disposed in the mounting hole 121 or blind hole 111. One side of the shim 140 may abut against the spring 130, and the other side may abut against the mounting hole 121 or blind hole 111. The shim 140 can be installed in the mounting hole 121 or blind hole 111 to adjust the compression force of the spring 130. Without the shim 140, one end of the spring 130 abuts against the end of the blind hole 111, and the other end abuts against the end of the mounting hole 121. The compression of the spring 130 is limited by the upper shell 120 and the lower shell 110. The maximum compression of the spring 130 in the belt radial displacement measuring device 100 is a fixed value. When the belt radial displacement measuring device 100 is not subjected to external force, the distance between the bottom surface of the upper shell 120 and the stepped surface 112 of the lower shell 110 is the maximum compression of the spring 130. Since the relationship between the compression of the spring 130 and the applied force is known, the pressure that the belt radial displacement measuring device 100 can apply to the belt 210 during the measurement of the radial displacement of the belt 210 can be determined based on the relationship between the compression of the spring 130 and the applied force. When the bottom surface of the upper shell 120 abuts against the stepped surface 112 of the lower shell 110, the spring 130 reaches its maximum compression. Shims 140 of different thicknesses can be set. When it is necessary to adjust the pressure applied to the belt 210, shims 140 are set in the blind hole 111 and the mounting hole 121. This increases the distance between the bottom surface of the upper shell 120 and the stepped surface 112 of the lower shell 110 when the belt radial displacement measuring device 100 is not subjected to external force. This increases the maximum compression of the spring 130, further increasing the pressure applied to the belt 210 during the measurement of the radial displacement of the belt 210, thus achieving fine adjustment of the pressure applied to the belt 210.

[0049] According to the belt radial displacement measuring device 100 provided in this embodiment, by setting shims 140, the maximum compression of the spring 130 can be adjusted. Furthermore, based on the requirements for measuring the radial displacement of the belt 210, the pressure applied by the belt radial displacement measuring device 100 to the surface of the belt 210 can be adjusted. By replacing shims 140 of different thicknesses, fine-tuning of the pressure can be achieved, thereby adapting to belts 210 of different specifications, materials, or tension requirements. This improves the versatility and adaptability of the belt radial displacement measuring device 100, and facilitates maintenance and adjustment, giving the belt radial displacement measuring device 100 greater flexibility.

[0050] In some embodiments, the outer surface of the upper shell 120 may also be provided with diagonally protruding stripes. Since the outer surface of the upper shell 120 is the surface that the user holds, the outwardly protruding diagonal stripes on the outer surface of the upper shell 120 provide better anti-slip performance, preventing the user from slipping out of their hand while holding the belt radial displacement measuring device 100 to measure the radial displacement of the belt 210, thus making it easier for the user to use.

[0051] Based on the same inventive concept, such as Figure 5 As shown, this disclosure also provides a transmission device, which may include: a belt 210, a frame 220, and a belt radial displacement measuring device 100 as provided in any of the foregoing embodiments.

[0052] Belt 210 is used for tensioning to transmit power or motion. Belt 210 can be mounted on frame 220 so that belt 210 can be tensioned on the drive shaft of frame 220, thereby moving with the rotation of the drive shaft and enabling belt 210 to transmit power.

[0053] The frame 220 is used to mount the belt 210. The frame 220 may include a bracket for supporting the transmission equipment and a drive shaft mounted on the bracket. The belt 210 can be mounted on the drive shaft so that the belt 210 moves with the rotation of the drive shaft, thereby achieving a good transmission effect.

[0054] The belt radial displacement measuring device 100 is used to measure the radial displacement of the belt 210. A user can hold the belt radial displacement measuring device 100 and place its lower housing 110 against the surface of the belt 210, such as... Figure 6 As shown, the user applies pressure to the upper shell 120 of the belt radial displacement measuring device 100 in a direction perpendicular to the belt 210, enabling the belt radial displacement measuring device 100 to apply a fixed force F to the belt 210. The magnitude of the force F can be determined based on the specifications of the spring 130 and the gap between the upper shell 120 and the lower shell 110. The distance the bottom surface of the lower shell 110 of the belt radial displacement measuring device 100 moves can be used to determine the distance the belt 210 moves in the radial direction after being compressed, thereby more accurately determining the relationship between the force on the belt 210 and the radial displacement. This provides a basis for subsequent adjustments to the belt 210, improving the adjustment efficiency and accuracy, and enabling the belt 210 to achieve higher transmission efficiency.

[0055] In some embodiments, the lower housing 110 is provided with a scale 113 on its periphery. The frame 220 may include a laser emitting device for emitting a laser to the belt radial displacement measuring device 100, and determining the radial displacement of the belt 210 according to the scale 113 illuminated by the laser. The frame 220 may be provided with a laser emitting device to emit a laser to the lower housing 110 with the scale 113. When the user presses the belt radial displacement measuring device 100, the bottom surface of the lower housing 110 abuts against the surface of the belt 210. When the user presses the upper housing 120, the lower housing 110 of the belt 210 can press the belt 210 accordingly, causing the belt 210 to deform and displace radially. A laser through hole 114 for laser positioning may be provided on the side of the scale 113 on the periphery of the lower housing 110. The laser through hole 114 may be provided on the side of the 0 mark of the scale 113. When the user holds the belt radial displacement measuring device 100 with its lower housing 110 against the surface of the belt 210 without applying force, the position and laser emission angle of the laser emitting device can be adjusted. This allows the laser emitted by the laser emitting device to pass through the laser through-hole 114 on the lower housing 110, achieving alignment between the belt radial displacement measuring device 100 and the laser emitting device, thereby improving the accuracy of subsequent radial displacement measurements of the belt 210. Alternatively, the user can hold the belt radial displacement measuring device 100 with its lower housing 110 against the surface of the belt 210 and apply a force perpendicular to the belt 210 to the upper housing 120. This causes the bottom surface of the lower housing 110 of the belt radial displacement measuring device 100 to contact the surface of the belt 210, reaching the maximum compression of the spring 130. Based on the relationship between the compression of the spring 130 and the applied force, the magnitude of the pressure exerted by the belt radial displacement measuring device 100 on the belt 210 can be determined. Since the lower shell 110 is provided with a scale 113 on its periphery, the corresponding scale on the lower shell 110 when the laser emitted by the current laser emitting device illuminates it can be read, and the read scale value can be determined as the radial displacement of the belt 210 under the current pressure.

[0056] The transmission device provided in this embodiment allows the user to apply a fixed force to the belt 210 simply by applying an external force to the upper shell 120 so that its bottom surface abuts against the stepped surface 112 of the lower shell 110, using a scale and a laser emitting device. Simultaneously, the radial displacement of the belt 210 can be measured directly by reading the scale corresponding to the laser emitted by the laser emitting device. This simplifies and simplifies the measurement process of the belt 210's radial displacement, lowers the operational threshold, and effectively improves the measurement efficiency of the belt 210's radial displacement.

[0057] This application uses specific terms to describe embodiments of the application. Terms such as "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0058] In the context of this application, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0059] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0060] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the embodiments of this application.

Claims

1. A belt radial displacement measuring device for measuring displacement in a radial direction of the belt, characterized by, The belt radial displacement measuring device comprises: a lower shell in a columnar shape, a blind hole is formed in the center of the top of the lower shell, and the bottom surface is used to contact the belt; an upper shell in a columnar shape, a mounting hole is formed in the center of the bottom of the upper shell, and the inner diameter of the mounting hole is larger than the outer diameter of the top of the lower shell; a spring, one end of the spring is in abutment with the end of the blind hole of the lower shell, and the other end of the spring is in abutment with the end of the mounting hole; wherein the upper part of the lower shell is mounted in the mounting hole, the mounting hole and the outer circumferential side of the lower shell are in sliding fit, so that after the belt radial displacement measuring device is pressed, the spring is compressed to the minimum length, the end surface of the mounting hole is in abutment with the top surface of the lower shell, and the elastic force of the spring is applied to the belt.

2. The belt radial displacement measuring device according to claim 1, wherein a stepped surface is formed on the upper part of the lower shell, so that the outer diameter of the upper part of the lower shell is smaller than the outer diameter of the lower part of the lower shell; the bottom surface of the upper shell is used to be in abutment with the stepped surface of the lower shell in the compressed state of the spring.

3. The belt radial displacement measuring device of claim 2, wherein, The belt radial displacement measuring device further comprises a distance measuring mechanism arranged on the lower shell, which is used to determine the displacement of the belt in the radial direction when the bottom surface of the upper shell is in abutment with the stepped surface of the lower shell.

4. The belt radial displacement measuring device of claim 3, wherein, The distance measuring mechanism comprises: a scale arranged on the circumferential side of the lower part of the lower shell, laser vias are formed on both sides of the lower part of the scale, laser is used as a reference by passing through the laser vias, and the displacement of the belt in the radial direction is determined according to the position of the scale irradiated by the laser when the bottom surface of the upper shell is in abutment with the stepped surface of the lower shell; or a laser emitting mechanism arranged on the lower part of the lower shell, which is used to emit laser to the frame of the belt, a scale is arranged on the frame, and the displacement of the belt in the radial direction is determined according to the scale irradiated by the laser on the frame.

5. The belt radial displacement measuring device of claim 2, wherein, The belt radial displacement measuring device comprises a reminding element arranged on the bottom surface of the upper shell or the stepped surface, which is used to emit one or more of sound, light or vibration when the bottom surface of the upper shell is in contact with the stepped surface.

6. The belt radial displacement measuring device according to claim 1, wherein a plurality of grooves are formed on the inner wall of the mounting hole along the extension direction of the mounting hole; a plurality of protrusions are formed on the outer circumferential side of the lower shell, and each protrusion is arranged in the groove.

7. The belt radial displacement measuring device of claim 6, wherein, The grooves comprise: a horizontal part arranged on the lower part of the upper shell and extending along the circumferential side of the inner wall of the mounting hole; a vertical part, one end of which is in communication with the end of the horizontal part, and the other end of which extends to the upper part of the mounting hole in the vertical direction.

8. The belt radial displacement measuring device of claim 1, wherein, The belt radial displacement measuring device further comprises: one or more spacers arranged on the end of the spring and arranged in the mounting hole and / or the blind hole.

9. A transmission device, comprising: a belt used to be tensioned to transmit power or motion; a frame used to mount the belt; the belt radial displacement measuring device according to any one of claims 1-8, which is used to measure the displacement of the belt in the radial direction.

10. The transmission apparatus of claim 9, wherein, A scale is arranged on the circumferential side of the lower shell. The rack comprises a laser emitting device for emitting laser to the belt radial displacement measuring device, and the displacement of the belt in the radial direction is determined according to the scale irradiated by the laser.

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