Multifunctional output shaft reverse driving and band-type brake mechanism
By designing a multi-functional output shaft reverse drive and brake mechanism driven by servo motor and cylinder in the brake mechanism, the problem of sliding under high torque in the prior art is solved, and the effect of gap-free locking and stable operation is achieved.
Patent Information
- Application Number
- CN202422078879.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing brake mechanism is prone to sliding when the torque is high, resulting in unsatisfactory locking effect.
A multi-functional output shaft reverse driving and brake mechanism is designed. The product is connected to the servo motor and rotated to a fixed angle. The cylinders on both sides push the locking blocks to lock the rotating shaft without gap to prevent axial rotation.
It effectively avoids sliding during operation after locking, ensures stability after locking, and prevents axial rotation during operation.
Smart Images
Figure CN223032963U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of output shaft reverse drive and brake, in particular to a multifunctional output shaft reverse drive and brake mechanism. Background Technique
[0002] A brake mechanism is a safety braking device used in mechanical devices. It controls the running speed or direction of mechanical components through frictional force or electromagnetic force. In a tower crane, the brake mechanism is a key safety device used to control the lifting speed and running direction of the tower crane to prevent accidental falling or rising. The basic structure of the brake mechanism includes a brake mechanism, a friction disc, and a control mechanism.
[0003] The working principle of a friction brake is to generate resistance through the frictional force between the friction disc and the rotating friction plate, hindering the rotation or descent of the tower crane. The brake mechanism controls the tightening force of the friction disc by adjusting air pressure or oil pressure, thereby controlling the running speed and direction of the tower crane.
[0004] An electromagnetic brake uses the magnetic field generated by an electromagnet to achieve braking. The friction disc and the rotating friction plate are tightly adsorbed together through electromagnetic force to stabilize the operation of the tower crane.
[0005] However, the locking effect of the locking mechanism of some current brake mechanisms is not ideal enough, and sliding still occurs when the torque is relatively large. Therefore, an improved technology is urgently needed to solve this problem existing in the prior art. Content of the Utility Model
[0006] The purpose of the utility model is to provide a multifunctional output shaft reverse drive and brake mechanism that docks with a product by rotating a servo motor and then rotates to a fixed angle, and the locking blocks are pushed by cylinders on both sides to lock the rotating shaft without clearance to prevent axial rotation during work, so as to solve the problems raised in the above background technique.
[0007] To achieve the above purpose, the utility model provides the following technical solution: A multifunctional output shaft reverse drive and brake mechanism, including a multifunctional brake mechanism, a base is arranged on the multifunctional brake mechanism, a left-right displacement linear guide rail is arranged on the upper surface of the base in a matching manner, a moving platform A is arranged above the left-right displacement linear guide rail, a front-back displacement linear guide rail is arranged on the upper surface of the moving platform A, a moving platform B is arranged above the front-back displacement linear guide rail, a bearing seat is arranged on the upper surface of the moving platform B, the bearing seat is fixedly connected with the moving platform B, and a clearance-free spline docking head is arranged at the end of the bearing inside the bearing seat;
[0008] On both sides of the bearing housing, there are symmetrically arranged gapless anti-rotation locking mechanisms. The gapless anti-rotation locking mechanisms are provided with locking blocks and cylinders. On the upper surface of the moving platform B, near one side edge, there is a locking cylinder and a mating installation block, and at the central position of the other side edge of the moving platform B, there is a buffer blocking cylinder in a mating manner.
[0009] Preferably, the left and right displacement linear guide rails are fixedly installed on the base. Between the left and right displacement linear guide rails and the moving platform A above, there are sliders in a mating manner. The sliders are installed in a mating manner with the left and right displacement linear guide rails, and the upper surface of the sliders is fixedly installed with the moving platform A.
[0010] Preferably, on the outer wall of the bearing inside the bearing housing, there are convex blocks. The convex blocks on the outer wall of the bearing are an integral structure with the bearing. On one side edge of the locking block on the gapless anti-rotation locking mechanism, there is a card slot, and the locking block is installed in a mating manner with the convex blocks on the outer wall of the bearing.
[0011] Preferably, at one end of the bearing housing, there is a brake servo motor, and between the brake servo motor and one end of the bearing inside the bearing housing, there is a precision planetary reducer in a mating manner.
[0012] Preferably, on one side of the buffer blocking cylinder, there is a mating installation block, and the mating installation block is arranged on the upper surface of the moving platform A and fixedly connected to the moving platform A.
[0013] Preferably, at the end of the push shaft of the locking cylinder, there is a clamping block. Outside the clamping block, there is a mating installation block. On one side of the mating installation block, there is a limit stop block, and the limit stop block is arranged at one side edge of the upper surface of the moving platform B.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] (1) On the upper surface of the moving platform B, there is a bearing housing. On the outer wall of the bearing inside the bearing housing, there are convex blocks. The convex blocks on the outer wall of the bearing are an integral structure with the bearing. On one side edge of the locking block on the gapless anti-rotation locking mechanism, there is a card slot, and the locking block is installed in a mating manner with the convex blocks on the outer wall of the bearing. The bearing housing is fixedly connected to the moving platform B. The gapless anti-rotation locking mechanism clamps the convex blocks on the outer wall of the bearing inside the bearing housing, firmly locking the bearing and ensuring the stability of the locked bearing.
[0016] (2) On both sides of the bearing housing, there are symmetrically arranged gapless anti-rotation locking mechanisms. The gapless anti-rotation locking mechanisms are provided with locking blocks and cylinders. The gapless anti-rotation locking mechanism uses the method of the locking block approaching and clamping to lock, ensuring the stability after locking and effectively avoiding sliding during the operation after locking.
[0017] (3) The multi-functional brake mechanism is a rotary locking drive device. It rotates to dock with the product through a servo motor, and then rotates to a fixed angle. The locking blocks are pushed by the cylinders on both sides to lock the rotating shaft without clearance, preventing axial rotation during operation. Description of the Drawings
[0018] Figure 1 It is a schematic structural view of the multi-functional brake mechanism of the present utility model;
[0019] Figure 2 It is a front view of the multi-functional brake mechanism of the present utility model;
[0020] Figure 3 It is a side view of the multi-functional brake mechanism of the present utility model;
[0021] Figure 4 It is a top view of the multi-functional brake mechanism of the present utility model.
[0022] In the figure: 1. Multi-functional brake mechanism; 2. Base; 3. Left and right displacement linear guide rails; 4. Moving platform A; 5. Fitting installation block; 6. Bearing seat; 7. Locking cylinder; 8. Servo motor with brake; 9. Precision planetary reducer; 10. Moving platform B; 11. Buffer blocking cylinder; 12. Clearance-free spline docking head; 13. Clearance-free anti-rotation locking mechanism; 14. Front and rear displacement linear guide rails; 15. Locking block. Specific Embodiment
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution: a multi-functional output shaft reverse drive and brake mechanism, including a multi-functional brake mechanism 1. A base 2 is provided on the multi-functional brake mechanism 1. The upper surface of the base 2 is fitted with left and right displacement linear guide rails 3. Above the left and right displacement linear guide rails 3 is a moving platform A 4. The left and right displacement linear guide rails 3 are fixedly installed with the base 2. A slider is provided between the left and right displacement linear guide rails 3 and the moving platform A 4 above. The slider is fitted with the left and right displacement linear guide rails 3, and the upper surface of the slider is fixedly installed with the moving platform A 4.
[0025] On the upper surface of the mobile platform A4, there is a front-back displacement linear guide rail 14. Above the front-back displacement linear guide rail 14, there is a mobile platform B10. On the upper surface of the mobile platform B10, there is a bearing seat 6. On the outer wall of the bearing inside the bearing seat 6, there are convex blocks. The convex blocks on the outer wall of the bearing and the bearing are of an integral structure without clearance. On one side edge of the locking block 15 on the non-clearance anti-rotation locking mechanism 13, there is a card slot. The locking block 15 is fitted and installed with the convex blocks on the outer wall of the bearing. The bearing seat 6 is fixedly connected to the mobile platform B10. The non-clearance anti-rotation locking mechanism 13 clamps the convex blocks on the outer wall of the bearing inside the bearing seat 6, firmly locking the bearing to ensure the stability of the bearing after locking. At the end of the bearing inside the bearing seat 6, there is a non-clearance spline docking head 12, which is used to connect with the components to be processed externally.
[0026] At one end of the bearing seat 6, there is a brake servo motor 8. Between the end of the brake servo motor 8 and one end of the bearing inside the bearing seat 6, there is a precision planetary reducer 9. Through the precision planetary reducer 9, the rotation speed of the brake servo motor 8 is reduced to a stable rotation speed range to ensure the stable operation of the equipment.
[0027] On both sides of the bearing seat 6, there are symmetrically arranged non-clearance anti-rotation locking mechanisms 13. On the non-clearance anti-rotation locking mechanisms 13, there are locking blocks 15 and cylinders. The non-clearance anti-rotation locking mechanism 13 uses the method of the locking block 15 approaching, holding and jamming to lock, ensuring the stability after locking and effectively avoiding sliding during the operation after locking.
[0028] On the upper surface of the mobile platform B10, near one side edge, there is a locked cylinder 7 and a fitting installation block 5. At the end of the push shaft of the locked cylinder 7, there is a block. Outside the block, there is a fitting installation block 5. On one side of the fitting installation block 5, there is a limit stop block, which is arranged on one side edge of the upper surface of the mobile platform B10. At the central position of the other side edge of the mobile platform B10, there is a buffer blocking cylinder 11 fitted. On one side of the buffer blocking cylinder 11, there is a fitting installation block. The buffer blocking cylinder 11 has the functions of buffering and blocking and limiting the movement of the mobile platform B10. The fitting installation block is arranged on the upper surface of the mobile platform A4 and is fixedly connected to the mobile platform A4.
[0029] This multi-functional brake mechanism is a rotary locking drive device. It docks with the product by rotating the servo motor, and then rotates to a fixed angle. The locking blocks are pushed by the cylinders on both sides to lock the rotating shaft without clearance to prevent axial rotation during work.
[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A multifunctional output shaft reverse drive and brake mechanism, comprising a multifunctional brake mechanism (1), characterized in that: The multifunctional brake mechanism (1) is provided with a base (2), the upper surface of the base (2) is provided with left and right displacement linear guide rails (3), a movable platform A (4) is provided above the left and right displacement linear guide rails (3), the upper surface of the movable platform A (4) is provided with front and rear displacement linear guide rails (14), a movable platform B (10) is provided above the front and rear displacement linear guide rails (14), the upper surface of the movable platform B (10) is provided with a bearing seat (6), the bearing seat (6) is fixedly connected to the movable platform B (10), and the bearing end inside the bearing seat (6) is provided with a gapless spline joint (12); The two sides of the bearing seat (6) are symmetrically provided with gapless anti-rotation locking mechanisms (13), and the gapless anti-rotation locking mechanisms (13) are provided with locking blocks (15) and cylinders. The upper surface of the mobile platform B (10) is provided with a locking cylinder (7) and a matching mounting block (5) near one side edge, and a buffer blocking cylinder (11) is matched at the central position of the other side edge of the mobile platform B (10).
2. A multifunctional output shaft reverse drive and brake mechanism according to claim 1, characterized in that: The left and right displacement linear guide rails (3) are fixedly mounted on the base (2); a slider is provided between the left and right displacement linear guide rails (3) and a movable platform A (4) provided above; the slider is installed in cooperation with the left and right displacement linear guide rails (3); and the upper surface of the slider is fixedly mounted on the movable platform A (4).
3. A multifunctional output shaft reverse drive and brake mechanism according to claim 1, characterized in that: The outer wall of the bearing inside the bearing seat (6) is provided with a convex block, and the convex block on the outer wall of the bearing is an integral structure with the bearing. A slot is provided on one side edge of the locking block (15) on the gapless anti-rotation locking mechanism (13), and the locking block (15) is installed in cooperation with the convex block on the outer wall of the bearing.
4. The multifunctional output shaft reverse drive and brake mechanism according to claim 1, characterized in that: A servo motor (8) with a brake is provided at one end of the bearing seat (6), and a precision planetary reducer (9) is provided between the servo motor (8) with a brake and one end of a bearing inside the bearing seat (6).
5. The multifunctional output shaft reverse drive and brake mechanism according to claim 1, characterized in that: A matching mounting block is provided on one side of the buffer blocking cylinder (11), and the matching mounting block is arranged on the upper surface of the mobile platform A (4) and is fixedly connected to the mobile platform A (4).
6. The multifunctional output shaft reverse drive and brake mechanism according to claim 1, characterized in that: The push shaft end of the locking cylinder (7) is provided with a clamping block, the outside of the clamping block is provided with a matching installation block (5), one side of the matching installation block (5) is provided with a limit stopper, and the limit stopper is arranged on one side edge of the upper surface of the mobile platform B (10).