Synchronous belt tension adjustment device

Abstract

This application discloses a synchronous belt tension adjustment device, relating to the field of auxiliary installation equipment technology, invented to improve the reliability and stability of synchronous belt drives. The synchronous belt tension adjustment device includes: a tension applying mechanism mounted on a base; a position adjusting arm connected to the tension applying mechanism; a mounting position on the base for mounting a transmission component; the transmission component includes a housing; the housing has a receiving cavity with one open end, a motor mounting seat is provided in the receiving cavity, and a drive motor is mounted on the motor mounting seat; a synchronous belt surrounds and engages with the surfaces of the driving pulley and the driven pulley; when adjusting the tension of the synchronous belt, the transmission component is confined to the mounting position, the position adjusting arm is hooked onto the drive motor, and the tension applying mechanism applies tension to the drive motor through the position adjusting arm to adjust the center distance between the driving pulley and the driven pulley. This application is applicable to adjusting the tension of synchronous belts.

Description

Technical Field

[0001] This application relates to the field of auxiliary installation equipment technology, and in particular to a synchronous belt tension adjustment device. Background Technology

[0002] Transmission components, capable of transmitting motion and speed, are used in many products to achieve corresponding functions. In existing technologies, the tension of the synchronous belt in the transmission component is achieved by fixing the center distance between the two synchronous pulleys connected to the synchronous belt. As a result, the tension of the synchronous belt is not adjustable. Whether the synchronous belt is under-tensioned or over-tensioned, it will affect the reliability and stability of the synchronous belt drive. Utility Model Content

[0003] In view of this, embodiments of this application provide a synchronous belt tension adjustment device to improve the reliability and stability of synchronous belt drives.

[0004] This application provides a synchronous belt tension adjustment device, comprising: a base; a tension applying mechanism disposed on the base; a position adjusting arm connected to the tension applying mechanism; the base also has a mounting position for mounting a transmission assembly, the transmission assembly including a housing, a drive motor, a drive pulley, a synchronous belt, a driven pulley, a rotating shaft, and a rotating connecting body; wherein, the housing has a receiving cavity with one end open, the receiving cavity is provided with a motor mounting seat, the drive motor is disposed on the motor mounting seat and is movable on the motor mounting seat; the output shaft of the drive motor is fixedly connected to the drive pulley. The rotating shaft passes through the central hole of the housing, one end of the rotating shaft is connected to the rotating connecting body, and the other end is connected to the driven wheel; the driven wheel is located on the side of the housing closer to the drive motor; the synchronous belt surrounds and engages with the surface of the driving wheel and the surface of the driven wheel; when adjusting the tension of the synchronous belt, the transmission assembly is limited to the mounting position in the direction in which the tension applying mechanism applies tension to the position adjusting arm, the position adjusting arm is hooked onto the drive motor, and the tension applying mechanism applies tension to the drive motor through the position adjusting arm to adjust the center distance between the driving wheel and the driven wheel.

[0005] According to a specific implementation of an embodiment of this application, the tension application mechanism includes: an operating handle and a transmission unit, wherein the operating handle and the transmission unit are connected.

[0006] According to a specific implementation of an embodiment of this application, the transmission unit includes a lead screw and a nut, with the nut disposed on the lead screw; the operating handle is connected to the lead screw, and the position adjusting arm is connected to the nut.

[0007] According to a specific implementation of an embodiment of this application, the tension adjustment device further includes a mechanical sensor, which is used to measure the tension force on the synchronous belt.

[0008] According to a specific implementation of an embodiment of this application, the force sensor is a force gauge; one end of the force gauge is connected to the force application mechanism, and the other end is connected to the position adjustment arm.

[0009] According to a specific implementation of an embodiment of this application, the position adjusting arm includes an adjusting rod and a tension plate, one end of the adjusting rod is connected to the tension gauge, and the other end is connected to the tension plate.

[0010] According to a specific implementation of an embodiment of this application, the position adjusting arm is rotatably connected to the tension applying mechanism; when adjusting the tension of the synchronous belt, the tension applying mechanism applies a tension to the position adjusting arm so that the position adjusting arm pulls the drive motor to rotate on the motor mounting base.

[0011] According to a specific implementation of an embodiment of this application, the drive motor is fixedly connected to the adapter sheet metal; the adapter sheet metal has a square plate-shaped structure; a rotating hole is provided at one corner of the adapter sheet metal; at least one of the other corners of the adapter sheet metal other than the corner with the adapter hole is provided with an oblong hole; the motor mounting base is provided with a positioning shaft and a mounting hole corresponding to the oblong hole, and the rotating hole is sleeved on the positioning shaft.

[0012] According to a specific implementation of this application, the adapter sheet metal is provided with two oblong holes on two corners adjacent to the corner where the adapter hole is provided, and the long axis direction of the rectangular groove of the oblong hole is the same as the extension direction of the corresponding side of the adapter sheet metal.

[0013] According to a specific implementation of this application, the adapter sheet metal has an oblong hole at the corner opposite to the corner where the adapter hole is provided; the oblong hole has an opening that communicates with the edge of the adapter sheet metal.

[0014] In this embodiment, when adjusting the tension of the synchronous belt, the transmission assembly is confined to the mounting position in the direction in which the tension application mechanism applies tension to the position adjustment arm. The tension application mechanism applies tension to the drive motor through the position adjustment arm. Since the drive motor in the transmission assembly is movable on the motor mounting base, it moves on the motor mounting base under the action of tension, thereby adjusting the center distance between the driving pulley and the driven pulley connected to the drive motor, and thus adjusting the tension of the synchronous belt, which facilitates the improvement of the reliability and stability of the synchronous belt drive. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a synchronous belt tension adjustment device provided in an embodiment of this application; Figure 2 for Figure 1 Exploded view; Figure 3 This is a schematic diagram of the structure of a transmission assembly provided in one embodiment of this application; Figure 4 for Figure 3 Exploded view; Figure 5 A schematic diagram of the structure of a synchronous belt tension adjustment device provided in a specific embodiment of this application; Figure 6 This is a schematic diagram of the structure of a position adjusting arm provided in one embodiment of this application; Figure 7 for Figure 6 Rear view; Figure 8 and Figure 9 This is a diagram illustrating the process by which the position adjusting arm applies tension to the drive motor, according to an embodiment of this application. Figure 10 This is a schematic diagram of the structure of the adapter sheet metal provided in one embodiment of this application; Figure 11 This is a schematic diagram of the structure of the electrode mounting base on the housing provided in one embodiment of this application; Figure 12 and Figure 13 This is a schematic diagram illustrating the change in the positional relationship between the adapter sheet metal and the motor mounting base during the adjustment of the synchronous belt tension, as provided in an embodiment of this application. Detailed Implementation

[0017] The embodiments of this application will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0018] In the description of this invention, it should be understood that the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] To enable those skilled in the art to better understand the technical concept, implementation scheme and beneficial effects of the embodiments of this application, detailed descriptions are provided below through specific embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of a synchronous belt tension adjustment device provided in an embodiment of this application. Figure 2 for Figure 1 Explosion diagram, Figure 3 This is a schematic diagram of the structure of a transmission assembly provided in one embodiment of this application. Figure 4 for Figure 3 Exploded view; such as Figure 1 As shown, the synchronous belt tension adjustment device of this embodiment may include: a base 1, a tension application mechanism 2, and a position adjustment arm 3. The tension application mechanism 2 is disposed on the base 1, and the position adjustment arm 3 is connected to the tension application mechanism 2. The base 1 is also provided with a mounting position 4, which is used to install a transmission assembly 5. The transmission assembly 5 includes a housing 50, a drive motor 51, a driving pulley 52, a synchronous belt 53, a driven pulley 54, a rotating shaft 55, and a rotating connecting body 56. The housing 50 has an opening at one end for receiving... The cavity contains a motor mounting base 57, on which a drive motor 51 is mounted and movable. The output shaft of the drive motor 51 is fixedly connected to the drive wheel 52. A rotating shaft 55 passes through the central hole of the housing 50, with one end connected to a rotating connector 56 and the other end connected to a driven wheel 54. The driven wheel 54 is located on the side of the housing 50 closer to the drive motor 51. A synchronous belt 53 surrounds and engages with the surfaces of the drive wheel 52 and the driven wheel 54.

[0021] When adjusting the tension of the synchronous belt 53, the transmission assembly 5 is limited to the mounting position 4 in the direction in which the tension application mechanism 2 applies tension to the position adjustment arm 3. The position adjustment arm 3 is hooked onto the drive motor 51. The tension application mechanism 2 applies tension to the drive motor 51 through the position adjustment arm 3 to adjust the center distance between the drive wheel 52 and the driven wheel 54.

[0022] The base 1 can be a plate-like structure made of metal.

[0023] The tension application mechanism 2 can provide tension and transmit the tension to the position adjustment arm 3.

[0024] The base 1 is also provided with a mounting position 4, the shape of which can correspond to the structure of the object placed on it.

[0025] In this embodiment, the mounting position 4 is used to set the transmission component 5. During the operation of the transmission component 5, the drive motor 51 drives the drive wheel 52 to rotate, the drive wheel 52 drives the synchronous belt 53 to move, which in turn drives the driven wheel 54 to rotate, and further drives the rotating connecting body 56 to rotate.

[0026] In some examples, the transmission component 5 can be located in the pan-tilt unit of the pan-tilt camera to drive the camera to rotate, and the camera is mounted on the rotating connector 56. In one specific example, the transmission component 5 is a horizontal transmission component 5, which can drive the camera to rotate horizontally; in another specific example, the transmission component 5 is a vertical transmission component 5, which can drive the camera to rotate vertically.

[0027] During the tension adjustment of the synchronous belt 53, the position adjustment arm 3 applies a pulling force to the drive motor 51, that is, pulls the drive motor 51 so that the drive motor 51 moves on the motor mounting base 57, thereby adjusting the center distance between the driving pulley 52 and the driven pulley 54, and thus adjusting the tension of the synchronous belt 53.

[0028] In one application scenario, if the tension of the synchronous belt 53 is too low, i.e. under-tension, the tension of the synchronous belt 53 can be adjusted by using the tensioning device of the synchronous belt 53 in this embodiment, i.e., the tension can be increased.

[0029] In this embodiment, when adjusting the tension of the synchronous belt 53, the transmission assembly 5 is limited to the mounting position 4 in the direction in which the tension application mechanism 2 applies tension to the position adjustment arm 3. The tension application mechanism 2 applies tension to the drive motor 51 through the position adjustment arm 3. Since the drive motor 51 in the transmission assembly 5 is movable on the motor mounting base 57, under the action of tension, the drive motor 51 moves on the motor mounting base 57, thereby adjusting the center distance between the driving pulley 52 and the driven pulley 54 connected to the drive motor 51, and thus adjusting the tension of the synchronous belt 53, which facilitates the improvement of the reliability and stability of the synchronous belt 53 transmission.

[0030] The tension application mechanism 2 in the above embodiments can be implemented by an electric drive mechanism or by manually providing tension. Providing tension by manual drive can save energy. In some examples, the tension application mechanism 2 may include an operating handle 21 and a transmission unit 22, with the operating handle 21 and the transmission unit 22 connected together.

[0031] The operator can operate the handle 21 to provide driving force, and the transmission unit 22 can transmit the driving force to the position adjustment arm 3.

[0032] like Figure 5 In the specific example shown, the transmission unit 22 may include a lead screw 220 and a nut 221, with the nut 221 located on the lead screw 220; the operating handle 21 is connected to the lead screw 220, and the position adjusting arm 3 is connected to the nut 221.

[0033] The operating handle 21 drives the lead screw 220 to rotate, and the nut 221 can move along the axis of the lead screw 220 on the lead screw, thereby converting the rotational motion into linear motion, which in turn drives the position adjusting arm 3 to achieve linear motion.

[0034] In another implementation, the transmission unit 22 may include a worm gear and a worm, with the worm mounted on the worm gear. The worm gear is connected to the operating handle 21, and the worm is connected to the position adjusting arm 3.

[0035] For transmission components 5 in mass-produced products, the better the consistency of the tension of the synchronous belt 53 of each transmission component 5 during production, the better it is for production control and to improve productivity. In order to improve the consistency of the tension of the synchronous belt 53, in some examples, the tension adjustment device may also include a mechanical sensor, which is used to measure the tension of the synchronous belt 53.

[0036] Mechanical sensors can include pressure sensors, strain sensors, piezoelectric sensors, and so on.

[0037] In this embodiment, the mechanical sensor can be set on the synchronous belt 53 or on the tension adjustment device. In one embodiment, the mechanical sensor is set at any position on the transmission path of the tension from the tension application mechanism 2 to the position adjustment arm 3.

[0038] It is understandable that the mechanical sensor set on the synchronous belt 53 can be a strain sensor.

[0039] See Figure 5 In a specific example, the force sensor is a force gauge 6; one end of the force gauge 6 is connected to the force application mechanism 2, and the other end is connected to the position adjustment arm 3.

[0040] The force gauge 6 can measure the magnitude of the force applied by the force application mechanism 2 to the position adjustment arm 3, and thus measure the tension applied to the drive motor 51. When adjusting the tension of the synchronous belt 53 in the batch transmission components 5, the final position of the drive motor 51 in the motor mounting base 57 can be determined according to the value displayed by the force gauge 6. In order to achieve consistency, a consistent tension can be set when adjusting the tension of the synchronous belt 53 in each transmission component 5.

[0041] See Figure 5 , Figure 6 and Figure 7 In one specific example, the position adjustment arm 3 includes an adjustment rod 30 and a tension plate 31. One end of the adjustment rod 30 is connected to a tension gauge, and the other end is connected to the tension plate 31.

[0042] When the tension plate 31 is hooked onto the drive motor 51, the tension gauge can measure the tension applied by the tension plate 31 to the drive motor 51. When adjusting the tension of the synchronous belt 53 in the batch transmission components 5, the final position of the drive motor 51 in the motor mounting base 57 can be determined according to the value displayed by the pressure sensor. In order to achieve consistency, a consistent tension can be set when adjusting the tension of the synchronous belt 53 in each transmission component 5.

[0043] After determining the final position of the drive motor 51 on the motor mounting base 57, the drive motor 51 can be fixed to the motor mounting base 57 using fasteners.

[0044] See Figure 8 and Figure 9 During the tensioning process of the synchronous belt, the tension plate 31 is hooked onto the drive motor 51 and applies tension to the drive motor 51 so that the drive motor 51 moves relative to the motor mounting base 57, thereby increasing the center distance between the drive pulley 52 and the driven pulley 54, thereby rotating and tensioning the synchronous belt 53.

[0045] The drive motor 51 can rotate or move linearly relative to the motor mounting base 57, see [reference]. Figure 10 and Figure 11 In a specific example where the drive motor 51 is movable on the motor mounting base 57, the drive motor 51 is fixedly connected to the adapter sheet metal 58; the adapter sheet metal 58 has a square plate structure; a rotating hole is provided at one corner of the adapter sheet metal 58; at least one of the other corners of the adapter sheet metal 58, except for the corner with the adapter hole 58a, is provided with an oblong hole 58b; the motor mounting base 57 is provided with a positioning shaft 57a and a mounting hole 57b corresponding to the oblong hole 58b, and the rotating hole is fitted onto the positioning shaft 57a.

[0046] In a real-world scenario, fasteners are fixed in the oblong hole 58b and the corresponding mounting hole 57b. When it is necessary to adjust the tension of the timing belt 53, the fastener can be unscrewed from the mounting hole 57b by reducing the force between the fastener and the oblong hole 58b and the corresponding mounting hole 57b. Then, the timing belt 53 tensioning device in this embodiment is used to adjust the tension of the timing belt 53. During the adjustment process, the drive motor 51 rotates around the positioning shaft 57a, and the oblong hole 58b also rotates accordingly. During the rotation, the mounting hole 57b on the motor mounting base 57 is also within the coverage area of ​​the oblong hole 58b. After the timing belt 53 tension adjustment is completed, the fasteners are tightened in the oblong hole 58b and the mounting hole 57b.

[0047] In one embodiment, the adapter sheet 58 has two oblong holes 58b on two corners adjacent to the corner where the adapter hole 58a is provided. The long axis of the rectangular groove of each oblong hole 58b is the same as the extension direction of the corresponding side of the adapter sheet 58. In this way, when the drive motor 51 rotates around the positioning shaft 57a, the oblong holes 58b rotate accordingly. When the long axis of the rectangular groove of each oblong hole 58b is the same as the extension direction of the corresponding side of the adapter sheet 58, even if the rotation is performed, it is easy to make the oblong holes 58b and the mounting holes 57b face each other.

[0048] In some examples, the adapter sheet 58 has an oblong hole 58b at the corner opposite to the corner where the adapter hole 58a is provided; the oblong hole 58b has an opening that communicates with the edge of the adapter sheet 58.

[0049] like Figure 12 and Figure 13 In the embodiment, during the process of adjusting the synchronous belt using the synchronous belt tension adjustment device of the above embodiment, the transition sheet metal rotates with the drive motor, which further increases the center distance between the driving pulley 52 and the driven pulley 54, thereby rotating and tensioning the synchronous belt 53.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0052] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A synchronous belt tension adjusting device characterized by comprising: include: Base; A tension application mechanism is disposed on the base; A position adjusting arm, which is connected to the tension applying mechanism; The base is also provided with a mounting position for mounting a transmission assembly. The transmission assembly includes a housing, a drive motor, a drive pulley, a timing belt, a driven pulley, a rotating shaft, and a rotating connecting body. The housing has an open-end cavity containing a motor mounting base. The drive motor is mounted on the motor mounting base and is movable thereon. The output shaft of the drive motor is fixedly connected to the drive pulley. The rotating shaft passes through a central hole in the housing, with one end connected to the rotating connecting body and the other end connected to the driven pulley. The driven pulley is located on the side of the housing closer to the drive motor. The timing belt surrounds and engages with the surfaces of the drive pulley and the driven pulley. When adjusting the tension of the synchronous belt, the transmission assembly is limited to the mounting position in the direction in which the tension applying mechanism applies tension to the position adjusting arm. The position adjusting arm is hooked onto the drive motor. The tension applying mechanism applies tension to the drive motor through the position adjusting arm to adjust the center distance between the driving wheel and the driven wheel.

2. The synchronous belt tension adjusting device according to claim 1, characterized by The tension application mechanism includes an operating handle and a transmission unit, wherein the operating handle and the transmission unit are connected.

3. The synchronous belt tension adjustment device according to claim 2, characterized in that, The transmission unit includes a lead screw and a nut, with the nut mounted on the lead screw; The operating handle is connected to the lead screw, and the position adjusting arm is connected to the nut.

4. The synchronous belt tension adjusting device according to claim 1, characterized by The tension adjustment device also includes a mechanical sensor, which is used to measure the tension force on the synchronous belt.

5. The synchronous belt tension adjusting device according to claim 4, characterized by The force sensor is located at any position along the force transmission path from the force application mechanism to the position adjustment arm.

6. The synchronous belt tension adjusting device according to claim 5, characterized by The mechanical sensor is a force gauge; One end of the force gauge is connected to the force application mechanism, and the other end is connected to the position adjustment arm.

7. The synchronous belt tension adjusting device according to claim 6, characterized by The position adjustment arm includes an adjustment rod and a tension plate. One end of the adjustment rod is connected to the tension gauge, and the other end is connected to the tension plate.

8. The synchronous belt tension adjusting device according to claim 1, characterized by The drive motor is fixedly connected to the adapter sheet metal; the adapter sheet metal has a square plate structure; a rotating hole is provided at one corner of the adapter sheet metal; at least one of the other corners of the adapter sheet metal, excluding the corner with the adapter hole, is provided with an oblong hole. The motor mounting base is provided with a positioning shaft and a mounting hole corresponding to the waist-shaped hole, and the rotating hole is sleeved on the positioning shaft.

9. The synchronous belt tension adjustment device according to claim 8, characterized in that, The adapter sheet metal has two oblong holes on the two corners adjacent to the corner where the adapter hole is located. The long axis of the rectangular groove of the oblong hole is in the same direction as the extension direction of the corresponding side of the adapter sheet metal.

10. The synchronous belt tension adjusting device according to claim 8, characterized by, The adapter sheet metal has an oblong hole at the corner opposite to the corner where the adapter hole is located; the oblong hole has an opening that penetrates the edge of the adapter sheet metal.

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