tensioner

Abstract

The utility model discloses a kind of tensioners, it includes tensioning seat, tensioning sleeve and reset spring;Tensioning seat is used to connect the output shaft of driving motor, the outer periphery of the upper part of tensioning seat is formed from top to bottom gradually expanded tensioning conical surface;Tensioning sleeve is used to be inserted with the input shaft of hollow rotating platform and is matched, tensioning sleeve is placed tensioning conical surface, tensioning sleeve is equipped with multiple tensioning spring leaf separated along the circumferential direction of tensioning sleeve, and tensioning spring leaf abuts against tensioning conical surface;Reset spring is arranged between tensioning seat and tensioning sleeve, and the upper and lower ends of reset spring abut against tensioning sleeve and tensioning seat respectively.The utility model can simplify the connection and separation operation mode of the input shaft of hollow rotating platform and the output shaft of driving motor.

Description

Technical Field

[0001] This utility model relates to the field of hollow rotating platform testing, and in particular to a tensioner. Background Technology

[0002] Existing hollow rotary platforms undergo no-load testing before leaving the factory, primarily checking whether their vibration and displacement are within acceptable limits under no-load conditions. However, this no-load testing requires connecting the hollow rotary platform to the drive motor. Currently, this is typically done via couplings or flanges, making the connection and disconnection of the input shaft and output shaft complex and hindering the automatic connection and disconnection of these components.

[0003] In view of the above problems, it is necessary to study a tensioner that can simplify the connection and disconnection of the input shaft of the hollow rotary platform and the output shaft of the drive motor. Utility Model Content

[0004] The purpose of this invention is to provide a tensioner that simplifies the connection and separation of the input shaft and the output shaft of the drive motor of a hollow rotary platform.

[0005] To achieve the above objectives, the solution of this utility model is: A tensioner includes a tensioning seat, a tensioning sleeve, and a return spring. The tensioning seat is used to connect to the output shaft of a drive motor, and the outer periphery of the upper part of the tensioning seat forms a tensioning conical surface that gradually expands from top to bottom. The tensioning sleeve is used to insert and cooperate with the input shaft of a hollow rotating platform. The tensioning sleeve is fitted onto the tensioning conical surface and has multiple tensioning springs spaced along the circumference of the tensioning sleeve. The tensioning springs abut against the tensioning conical surface. The return spring is disposed between the tensioning seat and the tensioning sleeve, and the upper and lower ends of the return spring abut against the tensioning sleeve and the tensioning seat, respectively.

[0006] The tensioner also includes a limiting rod and a limiting connector. The tensioner and the tensioning sleeve are hollow structures. The limiting rod moves through the tensioning sleeve and the tensioning seat. The upper end of the limiting rod forms a limiting stop for moving against the top of the tensioning sleeve. The lower end of the limiting rod is connected to the limiting connector, and the limiting connector moves against the bottom of the tensioning seat.

[0007] The limiting connector is screwed to the lower end of the limiting rod.

[0008] The tensioner also includes an anti-loosening connector, which is screwed to the lower end of the limiting rod, and the upper end of the anti-loosening connector abuts against the lower end of the limiting connector.

[0009] The tensioning seat, tensioning sleeve, return spring, limit rod, limit connector, and anti-loosening connector are all made of metal.

[0010] The tensioning seat is fitted with a bushing that holds the limiting rod.

[0011] The inner side of each tensioning spring of the tensioning sleeve forms a pressure cone surface that abuts against the tensioning cone surface.

[0012] The outer periphery of the upper end of the tensioning sleeve forms a guide cone surface that gradually expands from top to bottom.

[0013] The lower part of the tensioner forms a connecting shaft.

[0014] The outer side of the tensioning seat forms a convex retaining edge, which is located between the tensioning cone surface and the connecting shaft.

[0015] With the above solution, when using the tensioner of this utility model, the tensioning seat of the tensioner is connected to the output shaft of the drive motor. When connecting the input shaft of the hollow rotating platform to the output shaft of the drive motor, the drive motor is moved so that the tensioning sleeve of the tensioner of this utility model is inserted into the input shaft of the hollow rotating platform. After the tensioning sleeve is inserted into place, the tensioning seat continues to rise, causing the tensioning seat and the tensioning sleeve to move closer to each other, so that each tensioning spring of the tensioning sleeve is opened by the tensioning cone surface (at this time, it is in an expanded state), so that each tensioning spring of the tensioning sleeve forms a tight fit with the inner wall of the input shaft. At this time, the connection between the input shaft of the hollow rotating platform and the output shaft of the drive motor is completed. When separating the input shaft of the hollow rotary platform from the output shaft of the drive motor, the drive motor is moved in the opposite direction, causing the tensioner of this invention to move in the direction of pulling out the input shaft of the hollow rotary platform. At this time, the return spring will drive the tensioning seat and the tensioning sleeve to move away from each other, so that the tensioning springs of the tensioning sleeve are not opened by the tensioning cone surface, so that the tensioning springs of the tensioning sleeve retract and reset (at this time, they are in a retracted state). Thus, the tensioning springs of the tensioning sleeve no longer form a tight fit with the inner wall of the input shaft, so that the tensioning sleeve can be easily pulled out from the input shaft of the hollow rotary platform, realizing the separation of the input shaft of the hollow rotary platform from the output shaft of the drive motor.

[0016] As described above, this invention allows for the connection and separation of the input shaft of the hollow rotating platform from the output shaft of the drive motor simply by moving the drive motor, which is pre-loaded with the tensioner of this invention, closer to or further away from the input shaft. The entire connection and separation operation is very simple. Furthermore, the automatic connection and separation of the input shaft of the hollow rotating platform from the output shaft of the drive motor can be achieved by moving the drive motor, which is pre-loaded with the tensioner of this invention, through the drive mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is an exploded view of the structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Label Explanation: Tensioning seat 1, tensioning cone surface 11, connecting shaft 12, retaining edge 13, tensioning sleeve 2, tensioning spring 21, pressure-bearing cone surface 211, guide cone surface 22, return spring 3, limit rod 4, limit stop 41, limit connector 5, anti-loosening connector 6, bushing 7. Detailed Implementation

[0021] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0022] like Figures 1 to 3 As shown, this utility model discloses a tensioner, which includes a tensioning seat 1, a tensioning sleeve 2, and a return spring 3. The tensioning seat 1 is used to connect to the output shaft of the drive motor, and the outer periphery of the upper part of the tensioning seat 1 forms a tensioning conical surface 11 that gradually expands from top to bottom. The tensioning sleeve 2 is used to insert and cooperate with the input shaft of the hollow rotating platform. The tensioning sleeve 2 is fitted onto the tensioning conical surface 11. The tensioning sleeve 2 is provided with a plurality of tensioning spring pieces 21 that are separated along the circumference of the tensioning sleeve 2. The tensioning spring pieces 21 abut against the tensioning conical surface 11. The return spring 3 is disposed between the tensioning seat 1 and the tensioning sleeve 2, and the upper and lower ends of the return spring 3 abut against the tensioning sleeve 2 and the tensioning seat 1, respectively.

[0023] When using the tensioner of this utility model, the tensioning seat 1 of the tensioner is connected to the output shaft of the drive motor. When connecting the input shaft of the hollow rotating platform to the output shaft of the drive motor, the drive motor is moved so that the tensioning sleeve 2 of the tensioner is inserted into the input shaft of the hollow rotating platform. After the tensioning sleeve 2 is inserted, the tensioning seat 1 continues to rise, causing the tensioning seat 1 and the tensioning sleeve 2 to move closer to each other, so that each tensioning spring 21 of the tensioning sleeve 2 is opened by the tensioning cone surface 11 (at this time, it is in an expanded state), so that each tensioning spring 21 of the tensioning sleeve 2 forms a tight fit with the inner wall of the input shaft. At this time, the connection between the input shaft of the hollow rotating platform and the output shaft of the drive motor is completed. When separating the input shaft of the hollow rotating platform from the output shaft of the drive motor, the drive motor is moved in the opposite direction, causing the tensioner of this invention to move in the direction of pulling out the input shaft of the hollow rotating platform. At this time, the return spring 3 will drive the tensioning seat 1 and the tensioning sleeve 2 to move away from each other, so that the tensioning springs 21 of the tensioning sleeve 2 are not opened by the tensioning cone surface 11, so that the tensioning springs 21 of the tensioning sleeve 2 retract and reset (at this time, they are in a retracted state). Thus, the tensioning springs 21 of the tensioning sleeve 2 no longer form a tight fit with the inner wall of the input shaft. In this way, the tensioning sleeve 2 can be easily pulled out from the input shaft of the hollow rotating platform, realizing the separation of the input shaft of the hollow rotating platform from the output shaft of the drive motor. As can be seen from the foregoing, this invention can realize the connection and separation of the input shaft of the hollow rotating platform from the output shaft of the drive motor simply by driving the drive motor, which is pre-installed with the tensioner of this invention, to approach and move away from the input shaft of the hollow rotating platform. The entire connection and separation operation is very simple. Furthermore, the drive motor pre-loaded with the tensioner of this invention can be moved via the drive mechanism, thereby enabling automatic connection and separation between the input shaft of the hollow rotating platform and the output shaft of the drive motor.

[0024] In embodiments of this utility model, the tensioner may further include a limiting rod 4 and a limiting connector 5. The tensioner and the tensioning sleeve 2 are hollow structures. The limiting rod 4 moves through the tensioning sleeve 2 and the tensioning seat 1. The upper end of the limiting rod 4 forms a limiting stop 41 for moving against the top of the tensioning sleeve 2. The lower end of the limiting rod 4 is connected to the limiting connector 5, which moves against the bottom of the tensioning seat 1. In this way, the limiting rod 4 and the limiting connector 5 can limit the tensioning seat 1 and the tensioning sleeve 2 to prevent them from separating. The return spring 3 can be sleeved on the limiting rod 4 to prevent the return spring 3 from shifting.

[0025] In an embodiment of this utility model, the tensioner may further include an anti-loosening connector 6, which and the limiting connector 5 are screwed to the lower end of the limiting rod 4, and the upper end of the anti-loosening connector 6 abuts against the lower end of the limiting connector 5, so that the anti-loosening connector 6 and the limiting connector 5 are aligned to prevent the limiting connector 5 from loosening and falling off.

[0026] In an embodiment of this utility model, a connecting shaft 12 is formed at the lower part of the tensioning seat 1. The connecting shaft 12 is used to connect with the output shaft of the drive motor via a coupling. A protruding retaining edge 13 may be formed on the outer side of the tensioning seat 1. The retaining edge 13 is located between the tensioning cone surface 11 and the connecting shaft 12, and the retaining edge 13 is used to limit the depth of insertion of the connecting shaft 12 into the coupling. A bushing 7 for housing the limiting rod 4 may be fitted inside the tensioning seat 1. The bushing 7 can reduce the wear of the limiting rod 4.

[0027] In an embodiment of this utility model, the inner side of each tensioning spring 21 of the tensioning sleeve 2 forms a pressure-bearing cone surface 211 that abuts against the tensioning cone surface 11. Through the cooperation between the pressure-bearing cone surface 211 and the tensioning cone surface 11, the tensioning spring 21 can be opened more easily. The outer periphery of the upper end of the tensioning sleeve 2 can form a guide cone surface 22 that gradually expands from top to bottom. The guide cone surface 22 can facilitate the smooth insertion of the tensioning sleeve 2 into the input shaft of the hollow rotating platform.

[0028] In the embodiments of this utility model, the tensioning seat 1, tensioning sleeve 2, return spring 3, limit rod 4, limit connector 5, and anti-loosening connector 6 are all made of metal, which makes the tensioning seat 1, tensioning sleeve 2, return spring 3, limit rod 4, limit connector 5, and anti-loosening connector 6 strong and not easily damaged.

[0029] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A tensioner, characterized in that: It includes a tensioning seat, a tensioning sleeve, and a return spring; the tensioning seat is used to connect to the output shaft of the drive motor, and the outer periphery of the upper part of the tensioning seat forms a tensioning conical surface that gradually expands from top to bottom; the tensioning sleeve is used to insert and cooperate with the input shaft of the hollow rotating platform, the tensioning sleeve is fitted onto the tensioning conical surface, and the tensioning sleeve is provided with multiple tensioning springs separated along the circumference of the tensioning sleeve, the tensioning springs abutting against the tensioning conical surface; the return spring is disposed between the tensioning seat and the tensioning sleeve, and the upper and lower ends of the return spring abut against the tensioning sleeve and the tensioning seat respectively.

2. The tensioner as described in claim 1, characterized in that: It also includes a limit rod and a limit connector. The tensioner and tensioning sleeve are hollow structures. The limit rod moves through the tensioning sleeve and tensioning seat. The upper end of the limit rod forms a limit stop for moving against the top of the tensioning sleeve. The lower end of the limit rod is connected to the limit connector, and the limit connector moves against the bottom of the tensioning seat.

3. The tensioner as described in claim 2, characterized in that: The limiting connector is screwed to the lower end of the limiting rod.

4. The tensioner as described in claim 3, characterized in that: It also includes an anti-loosening connector, which is screwed to the lower end of the limiting rod, and the upper end of the anti-loosening connector abuts against the lower end of the limiting connector.

5. The tensioner as described in claim 4, characterized in that: The tensioning seat, tensioning sleeve, return spring, limit rod, limit connector, and anti-loosening connector are all made of metal.

6. The tensioner as described in claim 2, characterized in that: The tensioning seat is fitted with a bushing that holds the limiting rod.

7. The tensioner as described in claim 1, characterized in that: The inner side of each tensioning spring of the tensioning sleeve forms a pressure cone surface that abuts against the tensioning cone surface.

8. The tensioner as described in claim 1, characterized in that: The outer periphery of the upper end of the tensioning sleeve forms a guide cone surface that gradually expands from top to bottom.

9. The tensioner as described in claim 1, characterized in that: The lower part of the tensioner forms a connecting shaft.

10. The tensioner as described in claim 9, characterized in that: The outer side of the tensioning seat forms a convex retaining edge, which is located between the tensioning cone surface and the connecting shaft.

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