CN220505621U - Shaft end locking device - Google Patents
Shaft end locking device Download PDFInfo
- Publication number
- CN220505621U CN220505621U CN202322257454.4U CN202322257454U CN220505621U CN 220505621 U CN220505621 U CN 220505621U CN 202322257454 U CN202322257454 U CN 202322257454U CN 220505621 U CN220505621 U CN 220505621U
- Authority
- CN
- China
- Prior art keywords
- locking
- stop block
- block
- shaft
- shaft end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Clamps And Clips (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a shaft end locking device which comprises a shaft head of a transmission shaft and a flange plate; wherein, also include stop block and locking lever; the shaft head sequentially penetrates through the flange plate and the stop block, the surfaces of the flange plate and the stop block are attached, the locking rod axially penetrates through the stop block and the shaft head, and the locking rod is fixedly connected with the stop block; the risk of loosening of the traditional lock nut structure due to axial force is avoided, the bearing capacity of the lock structure is improved, and the reliability of locking of the shaft end is improved; and this device preparation is simple, easy dismounting, can reduce cost, improvement work efficiency.
Description
Technical Field
The utility model relates to a shaft head locking structure of a transmission shaft, in particular to a shaft head locking device.
Background
In the field of engineering machinery, in order to ensure the stability and reliability of torque transmission of a transmission shaft component and reduce the influence and damage of axial movement on parts such as a bearing, a locking structure is often required to axially fix a shaft head at the shaft end of a gearbox or a drive axle. The traditional fixed locking structure generally adopts a method of tightly screwing and punching the lock nut to fix the shaft head, as shown in the attached figure 1, the shaft head is provided with threads, the lock nut fixes the shaft head in a threaded engagement mode, but the locking structure can be consistent with the loosening direction of the lock nut due to the axial force direction, the lock nut is easy to loosen and lose efficacy under the heavy load working condition, the reliability of locking is difficult to ensure, and the problems of axial movement of a transmission shaft, abnormal gear noise, bearing damage and the like can be caused.
Disclosure of Invention
The utility model aims to: the utility model aims to provide a shaft end locking device for preventing a transmission shaft from axially moving.
The technical scheme is as follows: the utility model relates to a shaft end locking device which comprises a shaft head of a transmission shaft and a flange plate; wherein, also include stop block and locking lever; the shaft head sequentially penetrates through the flange plate and the stop block, the surfaces of the flange plate and the stop block are attached, the locking rod axially penetrates through the stop block and the shaft head, and the locking rod is fixedly connected with the stop block.
Further, a radial through hole for the passage of the locking rod is formed in the shaft head, and a through groove for the passage of the locking rod is also formed in the stop block.
Further, the stop block comprises a disc-shaped base and a locking block, one side of the disc-shaped base is attached to the flange, the locking block is fixedly arranged on the other side of the disc-shaped base, and the through groove transversely penetrates through the locking block.
Further, the locking rod is provided with external threads, and the radial through hole and the through groove are provided with internal threads matched with the external threads of the locking rod.
Further, nuts used for fixedly connecting the locking rod with the stop blocks are arranged at two ends of the locking rod, and the nuts are fixedly connected with the locking rod through threads.
Further, the cross section of the locking block is square, and the through groove is positioned on the middle line of the opposite sides of the locking block.
Further, the cross section of the locking block is regular hexagon, and the through groove is positioned on the middle line of the opposite sides of the locking block.
Working principle: when the shaft head moves to the right side due to the fact that the axial force is applied, the locking rod moves to the right side along with the shaft head, the stop block is driven to press the flange plate, and accordingly the trend of continuous movement of the shaft head is prevented.
The beneficial effects are that: compared with the prior art, the utility model has the following advantages: 1. the risk of loosening of the traditional lock nut structure due to axial force is avoided, the bearing capacity of the lock structure is improved, and the reliability of locking of the shaft end is improved; 2. the device is simple to prepare, convenient to assemble and disassemble, and capable of reducing cost and improving working efficiency.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic diagram of the structure of the present utility model;
fig. 3 is a schematic view of the stopper according to the present utility model.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings.
As shown in fig. 2 to 3, a shaft end locking device comprises a shaft head 1 of a rotating shaft, a flange 2, a stop block 3, a locking rod 4, a nut 5 and a fixing piece 6; the center of the stop block 3 is provided with a through hole for the shaft head 1 to pass through; the shaft head 1 sequentially penetrates through the flange 2 and the stop block 3, and two ends of the flange 2 are fixedly arranged on the mounting device through fixing pieces 6, wherein the fixing pieces 6 are screws in the drawing, and can be fixing pieces such as bolts, cylindrical pins and the like in actual production and use; the mounting means is a brake as shown; one end of the shaft head 1 penetrating through the stop block 3 is provided with a radial through hole 7, and the radial through hole 7 is perpendicular to the central axis of the shaft head 1; the stop block 3 is provided with a through groove 8 for the locking rod 4 to pass through, the locking rod 4 passes through the through groove 8 and the radial through hole, and the stop block 3 is fixedly connected with the shaft head 1 through the locking rod 4; in one scheme, the locking rod 4 is provided with external threads, and the through groove 8 and the radial through hole 7 are provided with internal threads matched with the threads on the locking rod 4; when the locking rod 4 transversely penetrates through the groove 8 and the radial through hole 7, the locking rod 4, the stop block 3 and the shaft head 1 are fixedly connected through threaded fit; in another scheme, the locking rod 4 is provided with external threads, and after the locking rod 4 transversely penetrates through the groove 8 and the radial through hole 7, nuts 5 are screwed on two ends of the locking rod 4 until the nuts 5 are attached to the surface of the stop block 3, and the locking rod 4 can be a bolt.
The stop block 3 comprises a disc-shaped base 9 and a locking block 10 which are fixedly connected, the disc-shaped base 9 is attached to the flange plate 2, and the through groove 8 is transversely arranged on the locking block 10; the cross section of the locking block 10 is preferably square, regular hexagon and other shapes, and the through groove 8 is formed along the center line of the opposite side of the locking block 10 and can be provided with a plurality of through grooves; as shown in fig. 3, the locking block 10 is in a regular hexagon shape, three through grooves are formed along the center line of opposite sides, the diameter of the through groove 8 is slightly larger than that of the locking rod 4, and meanwhile, the diameter of the through groove 8 is smaller than that of the nut 5.
Claims (7)
1. A shaft end locking device comprises a shaft head (1) of a transmission shaft and a flange plate (2); the locking device is characterized by further comprising a stop block (3) and a locking rod (4); the shaft head (1) sequentially penetrates through the flange plate (2) and the stop block (3) and the surfaces of the flange plate (2) and the stop block (3) are attached, the locking rod (4) axially penetrates through the stop block (3) and the shaft head (1), and the locking rod (4) is fixedly connected with the stop block (3).
2. Shaft end locking device according to claim 1, characterized in that the shaft head (1) is provided with a radial through hole (7) for the passage of the locking lever (4), and the stop block (3) is also provided with a through slot (8) for the passage of the locking lever (4).
3. Shaft end locking device according to claim 2, characterized in that the stop block (3) comprises a disc-shaped base (9) and a locking block (10), wherein one side of the disc-shaped base (9) is attached to the flange (2), the locking block (10) is fixedly arranged on the other side, and the through groove (8) transversely penetrates through the locking block (10).
4. A shaft end locking device according to claim 2 or 3, characterized in that the locking lever (4) is provided with an external thread, and the radial through hole (7) and the through groove (8) are provided with an internal thread which is matched with the external thread of the locking lever (4).
5. A shaft end locking device according to claim 2 or 3, characterized in that nuts (5) for fixedly connecting the locking rod (4) with the stop block (3) are arranged at both ends of the locking rod (4), and the nuts (5) are fixedly connected with the locking rod (4) through threads.
6. A shaft end locking device according to claim 3, characterized in that the locking block (10) is square in cross section, and the through groove (8) is located on the opposite side middle line of the locking block (10).
7. A shaft end locking device according to claim 3, characterized in that the cross section of the locking block (10) is regular hexagon, and the through groove (8) is positioned on the middle line of the opposite sides of the locking block (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322257454.4U CN220505621U (en) | 2023-08-22 | 2023-08-22 | Shaft end locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322257454.4U CN220505621U (en) | 2023-08-22 | 2023-08-22 | Shaft end locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505621U true CN220505621U (en) | 2024-02-20 |
Family
ID=89875798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322257454.4U Active CN220505621U (en) | 2023-08-22 | 2023-08-22 | Shaft end locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505621U (en) |
-
2023
- 2023-08-22 CN CN202322257454.4U patent/CN220505621U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |