Synchronous pulley adjusting device

Abstract

The utility model discloses a synchronous pulley adjusting device which comprises a supporting seat, a first rotating shaft is rotatably arranged on the supporting seat, a motor is arranged on one side of the supporting seat, the driving end of the motor penetrates through the supporting seat to be fixedly connected with the first rotating shaft, an adjusting groove is formed in the supporting seat, and an adjusting seat is slidably connected into the adjusting groove through a track structure. A second rotating shaft is rotatably arranged on one side of the adjusting seat, a screw rod is rotatably arranged in the adjusting groove and is in threaded connection with the adjusting seat, one end of the screw rod penetrates through the supporting seat and is fixedly connected with a rotating handle, a gear ring is arranged on the rotating handle, a limiting shell is movably arranged on the outer side of the gear ring, a limiting rod is movably arranged on the limiting shell, and one end of the limiting rod is fixedly connected with the supporting seat; the outer side of the limiting rod is movably sleeved with a spring, one end of the limiting rod penetrates through the limiting shell to be fixedly connected with a limiting plate, the position of the second rotating shaft is adjusted through a screw, and therefore the position of a synchronous belt wheel sleeve on the second rotating shaft is adjusted, and the tension of the synchronous belt can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous pulley adjustment, and more specifically, to a synchronous pulley adjustment device. Background Art

[0002] Synchronous pulley is a commonly used transmission component, which is used in conjunction with the synchronous belt to achieve precise transmission ratio and efficient power transmission. The tension of the synchronous belt is crucial to the transmission accuracy. Since the synchronous belt will be deformed after long-term use, it will become loose, thereby reducing the stability and transmission accuracy of the entire synchronous belt transmission. Therefore, an adjustment device is required to adjust the tension of the synchronous belt. During the use of the existing synchronous pulley adjustment device, the synchronous pulley tension adjustment bolts are symmetrically arranged in two groups. When the tightening torque of the two groups of nuts is inconsistent, the tension adjustment device is prone to tilt and vibration occurs during the operation of the synchronous belt, thereby reducing the stability of the entire synchronous belt transmission; secondly, during the use of the existing synchronous pulley adjustment device, since the synchronous pulley is prone to damage after long-term use, the entire synchronous pulley needs to be replaced, which wastes resources and increases cost investment. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a synchronous pulley adjustment device to solve the technical problem mentioned in the background technology that during use of the existing synchronous pulley adjustment device, the synchronous pulley tension adjustment bolts are symmetrically arranged in two groups. When the tightening torque of the two groups of nuts is inconsistent, the tension adjustment device is easily tilted and vibration is generated during the operation of the synchronous belt.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a synchronous pulley adjusting device, comprising a support seat, a first rotating shaft is rotatably provided on the support seat, a motor is provided on one side of the support seat, a driving end of the motor passes through the support seat and is fixedly connected to the first rotating shaft, the support seat is provided with an adjusting groove, the adjusting seat is slidably connected with the first rotating shaft through a track structure, a second rotating shaft is rotatably provided on one side of the adjusting seat, a screw is rotatably provided in the adjusting groove, the screw is threadedly connected to the adjusting seat, one end of the screw passes through the support seat and is fixedly connected to a turning handle, the turning handle is provided with a gear ring, a limit shell is movably provided on the outer side of the gear ring, a limit rod is movably provided on the limit shell, one end of the limit rod is fixedly connected to the support seat, a spring is provided on the outer side of the limit rod, and one end of the limit rod passes through the limit shell and is fixedly connected to the limit plate;

[0007] The first rotating shaft and the second rotating shaft are respectively movably connected with synchronous pulley sleeves on their outer sides.

[0008] The utility model is further configured such that a fixed chamber is respectively provided in the first rotating shaft and the second rotating shaft, and a bidirectional lead screw is rotatably provided in the fixed chamber to facilitate the rotation of the bidirectional lead screw.

[0009] The utility model is further configured such that two movable seats are threadedly connected to the bidirectional lead screw, four movable plates are slidably connected in the fixed chamber via a track structure, and support rods are respectively hingedly connected between the four movable plates and the two movable seats to facilitate the movement of the movable plates.

[0010] The utility model is further configured that a fixing block is provided on one side of each movable plate, one end of the fixing block passes through a fixing chamber and is inserted into a synchronous pulley sleeve, and four fixing grooves matching with the fixing block are provided in the synchronous pulley sleeve to facilitate fixing of the synchronous pulley sleeve.

[0011] The utility model is further configured that one end of the two bidirectional lead screws passes through the fixed chamber and is respectively fixedly connected to a rotating disk, so as to facilitate driving the bidirectional lead screws.

[0012] The utility model is further configured such that one side of the rotating disk is recessed inwardly to form a hexagonal groove, and the first rotating shaft and the second rotating shaft are respectively provided with rotating grooves matching the rotating disk to facilitate the rotation of the rotating disk.

[0013] The utility model is further configured such that two positioning rods are respectively provided on the first rotating shaft and the second rotating shaft to facilitate the installation of the synchronous pulley sleeve.

[0014] The utility model is further configured that the synchronous pulley sleeve is provided with two positioning grooves matched with the positioning rod, so as to facilitate the positioning of the synchronous pulley sleeve.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a synchronous pulley adjustment device having the following

[0017] Beneficial effects:

[0018] 1. By cooperating with the support seat, the first rotating shaft, the motor, the adjustment slot, the adjustment seat, the second rotating shaft, the screw rod, the turning handle, the gear ring, the limit shell, the limit rod, the spring and the limit plate, the position of the second rotating shaft is adjusted by a screw rod, so as to adjust the position of the synchronous belt pulley sleeve on the second rotating shaft, so as to adjust the tension of the synchronous belt, avoid the phenomenon of synchronous belt vibration caused by inconsistent tightening torque of multiple sets of adjusting bolts, and improve the stability of the entire synchronous belt transmission.

[0019] 2. Through the coordination of the synchronous pulley sleeve, the fixed chamber, the bidirectional lead screw, the movable seat, the movable plate, the support rod, the fixed block, the fixed groove, the rotating disk, the hexagonal groove and the rotating groove, the synchronous pulley sleeve can be replaced separately after being damaged, without replacing the first rotating shaft and the second rotating shaft, thus saving resources and reducing the cost investment. At the same time, the replacement method is simple and the maintenance work efficiency is improved.

[0020] 3. By cooperating with the first rotating shaft, the second rotating shaft, the synchronous pulley sleeve, the positioning rod and the positioning groove, the synchronous pulley sleeve can be positioned when installed, so that the fixing groove and the fixing block can be quickly aligned, thereby improving the work efficiency of the synchronous pulley sleeve installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of a synchronous pulley adjustment device in use;

[0022] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the support seat and its connecting components when the first rotating shaft is in a rotating state;

[0023] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the first rotating shaft and its connecting components when the synchronous pulley sleeve is installed;

[0024] Figure 4 It is a schematic diagram of the partial cross-sectional structure of the support seat and its connecting parts when the adjustment seat is in a moving state;

[0025] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the limit housing and its connecting parts when the gear ring is fixed.

[0026] In the figure: 1. support seat; 2. first rotating shaft; 3. motor; 4. adjusting slot; 5. adjusting seat; 6. second rotating shaft; 7. screw; 8. turning handle; 9. gear ring; 10. limiting shell; 11. limiting rod; 12. spring; 13. limiting plate; 14. synchronous pulley sleeve; 15. fixed chamber; 16. bidirectional lead screw; 17. moving seat; 18. moving plate; 19. support rod; 20. fixed block; 21. fixed slot; 22. rotating disk; 23. hexagonal slot; 24. rotating slot; 25. positioning rod; 26. positioning slot; 27. synchronous belt. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-5 , a synchronous pulley adjustment device comprises a support seat 1, a first rotating shaft 2 is rotatably provided on the support seat 1, a motor 3 is provided on one side of the support seat 1, a driving end of the motor 3 passes through the support seat 1 and is fixedly connected to the first rotating shaft 2, an adjusting groove 4 is provided on the support seat 1, an adjusting seat 5 is slidably connected in the adjusting groove 4 through a track structure, a second rotating shaft 6 is rotatably provided on one side of the adjusting seat 5, a screw rod 7 is rotatably provided in the adjusting groove 4, the screw 7 is threadedly connected to the adjusting seat 5, one end of the screw 7 passes through the support seat 1 and is fixedly connected to a turning handle 8, a gear ring 9 is provided on the turning handle 8, a limit shell 10 is movably provided on the outer side of the gear ring 9, a limit rod 11 is movably provided on the limit shell 10, one end of the limit rod 11 is fixedly connected to the support seat 1, a spring 12 is movably provided on the outer side of the limit rod 11, and one end of the limit rod 11 passes through the limit shell 10 and is fixedly connected to a limit plate 13;

[0031] The first rotating shaft 2 and the second rotating shaft 6 are respectively movably connected with synchronous pulley sleeves 14 on their outer sides.

[0032] In this embodiment, the motor 3 is started, the motor 3 drives the first rotating shaft 2 to rotate, the first rotating shaft 2 drives the synchronous pulley sleeve 14 installed on the first rotating shaft 2 to rotate, the synchronous pulley sleeve 14 drives the synchronous belt 27 to run, and under the drive of the synchronous belt 27, the other synchronous pulley sleeve 14 and the second rotating shaft 6 rotate. When the synchronous belt 27 is deformed after long-term use, the limit shell 10 is pushed to separate the limit shell 10 from the gear ring 9 and release the limit on the gear ring 9. At the same time, the limit shell 10 moves along the two limit rods 11, and the spring 12 is compressed. At this time, the turning handle 8 can be rotated, and the turning handle 8 drives the screw rod 7 to rotate. Since the screw rod 7 is threadedly connected with the adjusting seat 5, the adjusting seat 5 moves along the sliding connection with the adjusting groove 4, and the adjusting seat 5 drives the second rotating shaft 6 to move, and the second rotating shaft 6 drives the synchronous belt pulley sleeve 14 installed on the second rotating shaft 6 to move. A synchronous belt 27 is connected between the two synchronous belt pulley sleeves 14, so that the synchronous belt 27 is tensioned, and then the turning handle 8 is loosened to release the push on the limit shell 10. Under the push of the spring 12, the limit shell 10 moves to the outside of the gear ring 9, so that the gear ring 9 and the turning handle 8 can be fixed, and the limit plate 13 limits the limit shell 10.

[0033] More specifically, the limit of the gear ring 9 and the turning handle 8 can be released by pushing the limit housing 10, and then the turning handle 8 is turned, and one of the synchronous belt pulley sleeves 14 is adjusted through a screw rod 7, so as to tighten the synchronous belt 27. After completion, the turning handle 8 and the gear ring 9 can be limited by the limit housing 10. When the synchronous belt pulley sleeve 14 is damaged, it can be replaced separately.

[0034] See also Figure 1-5 As an implementation method for replacing the synchronous pulley sleeve 14: a fixed chamber 15 is respectively provided in the first rotating shaft 2 and the second rotating shaft 6, a bidirectional lead screw 16 is rotatably provided in the fixed chamber 15, and two movable seats 17 are threadedly connected to the bidirectional lead screw 16, and four movable plates 18 are slidably connected in the fixed chamber 15 through a track structure, and support rods 19 are respectively hingedly connected between the four movable plates 18 and the two movable seats 17, and each of the movable plates 18 is provided with a fixed block 20 on one side, and one end of the fixed block 20 passes through the fixed chamber 15 and is inserted into the synchronous pulley sleeve 14, and the synchronous pulley sleeve 14 is provided with four fixed grooves 21 matching with the fixed block 20, and one end of the two bidirectional lead screws 16 passes through the fixed chamber 15 and is fixedly connected with a rotating disk 22 respectively, and one side of the rotating disk 22 is recessed inward to form a hexagonal groove 23, and a rotating groove 24 matching with the rotating disk 22 is respectively provided on the first rotating shaft 2 and the second rotating shaft 6.

[0035] Specifically, insert the hexagonal wrench into the hexagonal groove 23 and turn the wrench. The wrench drives the rotating disk 22 to rotate in the rotating groove 24 through the hexagonal groove 23, and the rotating disk 22 drives the bidirectional lead screw 16 to rotate. Since the bidirectional lead screw 16 is provided with two threaded areas in opposite directions, the two moving seats 17 move in directions away from each other, and the moving seat 17 drives the support rod 19 to rotate. The support rod 19 drives the moving plate 18 to move along the sliding connection with the fixed chamber 15, and the moving plate 18 drives the fixed block 20 to move, so that the fixed block 20 moves out of the fixed groove 21 and moves into the fixed chamber 15, and the synchronous pulley sleeve 14 is pulled outward, so that the synchronous pulley sleeve 14 is removed from the first rotating shaft 2 or the second rotating shaft 6, and the replaced synchronous pulley sleeve 14 can be installed using the opposite operation.

[0036] See also Figure 1-5 As an implementation method for positioning the synchronous pulley sleeve 14: two positioning rods 25 are respectively provided on the first rotating shaft 2 and the second rotating shaft 6, and two positioning grooves 26 matching with the positioning rods 25 are provided on the synchronous pulley sleeve 14.

[0037] Specifically, when installing the synchronous pulley sleeve 14, the positioning groove 26 on the synchronous pulley sleeve 14 is aligned with the positioning rod 25 and moved so that the synchronous pulley sleeve 14 is sleeved on the first rotating shaft 2 or the second rotating shaft 6. At this time, the fixing groove 21 can be quickly aligned with the fixing block 20. After the synchronous pulley sleeve 14 is installed, when the first rotating shaft 2 and the second rotating shaft 6 rotate, the synchronous pulley sleeve 14 can be driven to rotate by the positioning rod 25 and the positioning groove 26.

[0038] To sum up, when the overall equipment is in use:

[0039] When the tension of the synchronous belt 27 needs to be adjusted and the synchronous belt 27 is deformed after long-term use, the limit shell 10 is pushed to separate the limit shell 10 from the gear ring 9 and release the limit on the gear ring 9. At the same time, the limit shell 10 moves along the two limit rods 11 and the spring 12 is compressed. At this time, the turning handle 8 can be rotated, and the turning handle 8 drives the screw rod 7 to rotate. Since the screw rod 7 is threadedly connected with the adjusting seat 5, the adjusting seat 5 moves along the sliding connection with the adjusting groove 4, and the adjusting seat 5 drives the second rotating shaft 6 to move, and the second rotating shaft 6 drives the synchronous belt pulley sleeve 14 installed on the second rotating shaft 6 to move. The synchronous belt 27 is connected between the two synchronous belt pulley sleeves 14, so that the synchronous belt 27 is tensioned, and then the turning handle 8 is released to release the push on the limit shell 10. Under the push of the spring 12, the limit shell 10 moves to the outside of the gear ring 9, so that the gear ring 9 and the turning handle 8 can be fixed, and the limit plate 13 limits the limit shell 10.

[0040] When the synchronous pulley sleeve 14 needs to be replaced, insert the hexagonal wrench into the hexagonal groove 23 and turn the wrench. The wrench drives the rotating disk 22 to rotate in the rotating groove 24 through the hexagonal groove 23, and the rotating disk 22 drives the bidirectional lead screw 16 to rotate. Since the bidirectional lead screw 16 is provided with two threaded areas in opposite directions, the two moving seats 17 move in directions away from each other, and the moving seat 17 drives the support rod 19 to rotate. The support rod 19 drives the moving plate 18 to move along the sliding connection with the fixed chamber 15, and the moving plate 18 drives the fixed block 20 to move, so that the fixed block 20 moves out of the fixed groove 21 and moves into the fixed chamber 15, and pulls the synchronous pulley sleeve 14 outward, so that the synchronous pulley sleeve 14 is removed from the first rotating shaft 2 or the second rotating shaft 6, and the replaced synchronous pulley sleeve 14 can be installed using the opposite operation.

[0041] When the synchronous pulley sleeve 14 needs to be installed, the positioning groove 26 on the synchronous pulley sleeve 14 is aligned with the positioning rod 25 and moved so that the synchronous pulley sleeve 14 is sleeved on the first rotating shaft 2 or the second rotating shaft 6. At this time, the fixing groove 21 can be quickly aligned with the fixing block 20. After the synchronous pulley sleeve 14 is installed, the motor 3 is started, and the motor 3 drives the first rotating shaft 2 to rotate. The first rotating shaft 2 drives the synchronous pulley sleeve 14 to rotate through the positioning rod 25, the positioning groove 26, the fixing block 20 and the fixing groove 21. The synchronous pulley sleeve 14 drives the synchronous belt 27 to run. Driven by the synchronous belt 27, the other synchronous pulley sleeve 14 and the second rotating shaft 6 rotate.

[0042] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A synchronous pulley adjustment device, comprising a support seat (1), characterized in that: A first rotating shaft (2) is rotatably provided on the support seat (1), a motor (3) is provided on one side of the support seat (1), a driving end of the motor (3) passes through the support seat (1) and is fixedly connected to the first rotating shaft (2), an adjusting groove (4) is provided on the support seat (1), an adjusting seat (5) is slidably connected in the adjusting groove (4) via a track structure, a second rotating shaft (6) is rotatably provided on one side of the adjusting seat (5), a screw rod (7) is rotatably provided in the adjusting groove (4), and the screw rod (7) and the adjusting seat (5) are connected in a fixed manner. Threaded connection, one end of the screw rod (7) passes through the support seat (1) and is fixedly connected to a turning handle (8), a gear ring (9) is provided on the turning handle (8), a limit shell (10) is movably provided on the outer side of the gear ring (9), a limit rod (11) is movably provided on the limit shell (10), one end of the limit rod (11) is fixedly connected to the support seat (1), a spring (12) is movably sleeved on the outer side of the limit rod (11), and one end of the limit rod (11) passes through the limit shell (10) and is fixedly connected to a limit plate (13); The first rotating shaft (2) and the second rotating shaft (6) are respectively movably connected with synchronous pulley sleeves (14) on their outer sides.

2. A synchronous pulley adjustment device according to claim 1, characterized in that: A fixed chamber (15) is provided in each of the first rotating shaft (2) and the second rotating shaft (6), and a bidirectional lead screw (16) is rotatably provided in the fixed chamber (15).

3. A synchronous pulley adjustment device according to claim 2, characterized in that: Two movable seats (17) are threadedly connected to the bidirectional lead screw (16), four movable plates (18) are slidably connected in the fixed chamber (15) via a track structure, and support rods (19) are respectively hingedly connected between the four movable plates (18) and the two movable seats (17).

4. A synchronous pulley adjustment device according to claim 3, characterized in that: A fixing block (20) is provided on one side of each movable plate (18), one end of the fixing block (20) passes through the fixing chamber (15) and is inserted into the synchronous pulley sleeve (14), and the synchronous pulley sleeve (14) is provided with four fixing grooves (21) that match the fixing block (20).

5. A synchronous pulley adjustment device according to claim 4, characterized in that: One end of the two bidirectional lead screws (16) passes through the fixed chamber (15) and is respectively fixedly connected to a rotating disk (22).

6. A synchronous pulley adjustment device according to claim 5, characterized in that: One side of the rotating disk (22) is inwardly recessed to form a hexagonal groove (23), and the first rotating shaft (2) and the second rotating shaft (6) are respectively provided with rotating grooves (24) matching with the rotating disk (22).

7. A synchronous pulley adjustment device according to any one of claims 1 or 2, characterized in that: Two positioning rods (25) are respectively provided on the first rotating shaft (2) and the second rotating shaft (6).

8. A synchronous pulley adjustment device according to claim 7, characterized in that: The synchronous pulley sleeve (14) is provided with two positioning grooves (26) which match the positioning rods (25).

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