Output shaft of speed reducer
By installing a limiter on the output shaft of the drum reducer to control the number of turns of the output shaft, the problem of asynchronous rotation of the shaft and the drum is solved, and the stability and safety of the system are improved.
Patent Information
- Application Number
- CN202421008195.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-10
AI Technical Summary
The commercially available 32-ton driving large hook reel lifting limiter is prone to failure during use, resulting in safety hazards of the large hook pushing to the top. The main reason is that the shaft and the hub rolling keys or the shaft are fatigued and broken, causing the shaft and the reel to rotate in a different synchronization. .
Design a reducer output shaft, including the drum reducer output shaft and a limiter installed at the output end. The limiter consists of a limit block, a coupling and a bearing. The limiter is designed by controlling the number of turns of the output shaft. Fixed value to ensure synchronous rotation of the shaft and drum.
By adding a limiter, the working stability of the output shaft of the drum reducer is improved, ensuring the synchronous rotation of the shaft and drum, and reducing safety hazards.
Smart Images
Figure CN222374258U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical shafts, in particular to an output shaft of a speed reducer. Background Art
[0002] At present, the 32-ton crane hook drum lifting limiter on the market may fail during use, posing a safety hazard of the hook hitting the top. There are two reasons for this: one is the rolling key between the shaft and the hub; the other is shaft fatigue fracture, both of which will cause the shaft and drum to rotate out of sync. Utility Model Content
[0003] In order to solve the above problems, the utility model provides a reducer output shaft, which can improve the working stability of the output shaft of the drum reducer ZQA750-48.57-7CA, and further provide guarantee for the synchronous rotation of the shaft and the drum.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A reducer output shaft comprises a drum reducer output shaft and a limiter installed at the output end of the drum reducer output shaft, wherein the limiter comprises a limit block, a coupling and a bearing, and a rectangular limit hole adapted to a protrusion at the output end of the drum reducer output shaft is provided on the inner side surface of the limit block.
[0006] Furthermore, the limit block is connected to the bearing through a coupling, and the bearing is sleeved on the output end of the output shaft of the drum reducer.
[0007] Furthermore, the cross section of the limiting block is T-shaped.
[0008] Furthermore, the protrusion at the output end of the output shaft of the drum reducer is inserted into the rectangular limiting hole.
[0009] Furthermore, the output shaft of the drum reducer adopts the output shaft of the drum reducer ZQA750-48.57-7CA.
[0010] The utility model adds a set of limiters on the output shaft of the drum reducer ZQA750-48.57-7CA to control the number of output shaft turns when the reducer is lifted as the limiter setting value, thereby providing guarantee for the synchronous rotation of the shaft and the drum, which is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0012] Figure 1 This is a schematic structural diagram of a reducer output shaft according to an embodiment of the utility model.
[0013] Figure 2 for Figure 1 A is an enlarged view of the middle image.
[0014] Figure 3 It is a schematic diagram of the local structure of an embodiment of the utility model.
[0015] Figure 4 This is a schematic diagram of the structure of the limiter in the embodiment of the utility model.
[0016] Figure 5 The figure is a structural schematic diagram of a specific application example of the utility model.
[0017] Figure 6 for Figure 5 Cross-sectional view of .
[0018] In the figure: 1- output shaft of drum reducer; 2- limiter; 21- limit block; 22- coupling; 23- bearing; 24- rectangular limit hole; 3- drum; 4- shaft; 5- hub. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] like Figure 1-Figure 4 As shown, a reducer output shaft of an embodiment of the utility model includes a reel reducer output shaft 1 and a limiter 2 installed at the output end of the reel reducer output shaft 1. In this embodiment, the reel reducer output shaft 1 adopts the reel reducer ZQA750-48.57-7CA output shaft, and the limiter 2 includes a limit block 21, a coupling 22 and a bearing 23, wherein the cross-section of the limit block 21 is T-shaped, the limit block 21 is connected to the bearing 23 through the coupling 22, and the bearing 23 is mounted on the output end of the reel reducer ZQA750-48.57-7CA output shaft 1.
[0021] In order to further ensure the synchronization between the limiter and the output shaft of the drum reducer ZQA750-48.57-7CA, a rectangular limit hole 24 adapted to the protrusion at the output end of the output shaft of the drum reducer is opened on the inner side surface of the limit block 21, wherein the protrusion at the output end of the output shaft of the drum reducer is inserted into the rectangular limit hole 24.
[0022] When designing this specific implementation, the number of output shaft turns when controlling the speed reducer to rise and fall is used as the limiter setting value. Figure 5-Figure 6 As shown, first, connect the output shaft of the drum reducer ZQA750-48.57-7CA to shaft 4, and then connect the bearing 23 to the output end of the output shaft of the drum reducer ZQA750-48.57-7CA, and use the limiter to assist in controlling the number of output shaft turns when the reducer is raised or lowered, thereby providing a guarantee for the synchronous rotation of the shaft and the drum.
[0023] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A reducer output shaft, comprising a drum reducer output shaft and a stopper installed at the output end of the drum reducer output shaft, characterized in that: The limiter comprises a limit block, a coupling and a bearing. A rectangular limit hole matching with the protrusion at the output end of the output shaft of the drum reducer is provided on the inner side surface of the limit block.
2. A reducer output shaft according to claim 1, characterized in that: The limit block is connected with the bearing through a coupling, and the bearing is sleeved on the output end of the output shaft of the drum reducer.
3. A reducer output shaft according to claim 1, characterized in that: The cross section of the limiting block is T-shaped.
4. A reducer output shaft according to claim 1, characterized in that: The protrusion at the output end of the output shaft of the drum reducer is inserted into the rectangular limiting hole.
5. The reducer output shaft according to claim 1, characterized in that: The output shaft of the drum reducer adopts the output shaft of the drum reducer ZQA750-48.57-7CA.