High-power motor shaft centering frame
By designing a high-power motor shaft centering bracket, and using components such as flanges, synchronous pulleys, bearings, and expansion sleeves to support the motor shaft, the problem of high-power motor shaft deformation was solved, and the output accuracy of the motor was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BORCH MACHINERY
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-28
AI Technical Summary
The shaft of a high-power motor is prone to deformation during output, which affects the output accuracy of the motor.
A high-power motor shaft centering bracket was designed, including components such as flanges, synchronous pulleys, bearings, and expansion sleeves. It is fixed to the motor with screws and uses bearings and elastic retaining rings to support the motor shaft and reduce deformation.
It effectively supports the motor shaft, reduces deformation of the motor shaft under high power output, and improves the output accuracy of the motor.
Smart Images

Figure CN224178017U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor technology, specifically to a high-power motor shaft centering bracket. Background Technology
[0002] Because injection-driven motors output high power, and the output shaft of such motors is usually mounted in a suspended position, this is not a problem for low-power motors. However, when the output power is high, the torque, speed, and force on the motor shaft are all very large, which can easily lead to deformation and thus affect the output accuracy of the motor. Utility Model Content
[0003] The purpose of this invention is to solve the problems mentioned above in the background technology and to propose a high-power motor shaft centering bracket.
[0004] The objective of this utility model can be achieved through the following technical solutions:
[0005] A high-power motor shaft centering bracket includes a flange fixedly sleeved on the motor shaft, the flange having a groove for a belt to pass through, a synchronous pulley being sleeved on the motor shaft, a hole being provided at the end of the flange away from the motor, a bearing being disposed in the hole, and the end of the motor shaft being inserted into the bearing.
[0006] As a further embodiment of this utility model: the flange is in the shape of a barrel structure, and the groove is formed on the cylindrical wall of the barrel-shaped flange.
[0007] As a further embodiment of this utility model, the number of slots is two.
[0008] As a further embodiment of this utility model: an expansion sleeve is also provided on the motor shaft at the front end of the synchronous wheel, the expansion sleeve being used to squeeze and limit the synchronous wheel.
[0009] As a further embodiment of this utility model: the expansion sleeve is connected and fixed to the synchronous wheel by a fixing member.
[0010] As a further embodiment of this utility model: an expansion sleeve pull plate is provided at the hole in the flange.
[0011] As a further embodiment of this utility model: the synchronous pulley is a sleeve-shaped structure, and anti-slip strips are arranged in an annular pattern at equal intervals on the sleeve wall of the synchronous pulley.
[0012] As a further embodiment of this invention, the flange is detachably fixed to the motor by screws.
[0013] As a further embodiment of this invention, the bearing is a deep groove ball bearing.
[0014] As a further embodiment of this utility model: an elastic retaining ring is snapped into the hole inside the flange near the bearing.
[0015] The beneficial effects of this utility model are as follows: the flange is fixed to the motor with screws, and the deep groove ball bearing is held in the flange by the elastic retaining ring. At the same time, the motor shaft is held in the middle of the deep groove ball bearing, so the motor shaft extending out of the motor has a supporting effect. The motor shaft centering bracket plays the role of supporting the motor shaft and reducing the deformation of the motor shaft under high power output. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;
[0019] Figure 3 and 4 This is a cross-sectional structural diagram of the flange of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of this utility model when partially disassembled.
[0021] In the diagram: 1. Motor; 2. Motor shaft; 3. Expansion sleeve; 4. Bearing; 5. Flange; 501. Groove; 6. Expansion sleeve pull plate; 7. Elastic retaining ring; 8. Synchronous pulley; 9. Belt. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] Example 1, please refer to Figure 1-5 As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 has a groove 501 for the belt 9 to pass through. A synchronous pulley 8 is also sleeved on the motor shaft 2. A hole is opened at the end of the flange 5 away from the motor 1. A bearing 4 is arranged in the hole. The end of the motor shaft 2 is inserted into the bearing 4.
[0024] Example 2, please refer to Figure 1-5As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 has a groove 501 for the belt 9 to pass through. The flange 5 is in the shape of a barrel structure. The groove 501 is formed on the cylindrical wall of the barrel-shaped flange 5. There are two grooves 501, and the groove 501 is in the shape of a long strip.
[0025] A synchronous pulley 8 is also fitted on the motor shaft 2. A hole is opened at the end of the flange 5 away from the motor 1. A bearing 4 is installed in the hole, and the end of the motor shaft 2 is inserted into the bearing 4.
[0026] Example 3, please refer to Figure 1-5 As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 has a groove 501 for the belt 9 to pass through. The flange 5 is in the shape of a barrel structure. The groove 501 is formed on the cylindrical wall of the barrel-shaped flange 5. There are two grooves 501, and the groove 501 is in the shape of a long strip.
[0027] A synchronous pulley 8 is also fitted onto the motor shaft 2. A hole is formed at the end of the flange 5 away from the motor 1, and a bearing 4 is installed within the hole. The end of the motor shaft 2 is inserted into the bearing 4. An expansion sleeve 3 is also fitted onto the motor shaft 2 at the front end of the synchronous pulley 8. The expansion sleeve 3 is used to compress and limit the synchronous pulley 8. The expansion sleeve 3 is connected and fixed to the synchronous pulley 8 by a fastener. An expansion sleeve pull plate 6 is provided at the hole within the flange 5.
[0028] Example 4, please refer to Figure 1-5 As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 has a groove 501 for the belt 9 to pass through. The flange 5 is in the shape of a barrel structure. The groove 501 is formed on the cylindrical wall of the barrel-shaped flange 5. There are two grooves 501, and the groove 501 is in the shape of a long strip.
[0029] The motor shaft 2 is also fitted with a synchronous pulley 8, which is a sleeve-shaped structure. Anti-slip strips are arranged in an annular pattern on the cylindrical wall of the synchronous pulley 8.
[0030] The flange 5 has a hole at the end furthest from the motor 1, and a bearing 4 is installed inside the hole. The end of the motor shaft 2 is inserted into the bearing 4. An expansion sleeve 3 is also fitted onto the motor shaft 2 at the front end of the synchronous pulley 8. The expansion sleeve 3 is used to compress and limit the synchronous pulley 8. The expansion sleeve 3 is connected and fixed to the synchronous pulley 8 by a fastener. An expansion sleeve pull plate 6 is provided in the hole within the flange 5.
[0031] Example 5, please refer to Figure 1-5 As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 is detachably fixed to the motor 1 by screws. The flange 5 has a groove 501 through which a belt 9 can pass. The flange 5 is in the shape of a barrel structure. The groove 501 is formed on the cylindrical wall of the barrel-shaped flange 5. There are two grooves 501, and the grooves 501 are in the shape of long strips.
[0032] The motor shaft 2 is also fitted with a synchronous pulley 8, which is a sleeve-shaped structure. Anti-slip strips are arranged in an annular pattern on the cylindrical wall of the synchronous pulley 8.
[0033] The flange 5 has a hole at the end furthest from the motor 1, and a bearing 4 is installed inside the hole. The end of the motor shaft 2 is inserted into the bearing 4. An expansion sleeve 3 is also fitted onto the motor shaft 2 at the front end of the synchronous pulley 8. The expansion sleeve 3 is used to compress and limit the synchronous pulley 8. The expansion sleeve 3 is connected and fixed to the synchronous pulley 8 by a fastener. An expansion sleeve pull plate 6 is provided in the hole within the flange 5.
[0034] Example 6, please refer to Figure 1-5 As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 is detachably fixed to the motor 1 by screws. The flange 5 has a groove 501 through which a belt 9 can pass. The flange 5 is in the shape of a barrel structure. The groove 501 is formed on the cylindrical wall of the barrel-shaped flange 5. There are two grooves 501, and the grooves 501 are in the shape of long strips.
[0035] The motor shaft 2 is also fitted with a synchronous pulley 8, which is a sleeve-shaped structure. Anti-slip strips are arranged in an annular pattern on the cylindrical wall of the synchronous pulley 8.
[0036] The flange 5 has a hole at the end furthest from the motor 1, and a bearing 4, which is a deep groove ball bearing, is installed inside the hole. The end of the motor shaft 2 is inserted into the bearing 4. An expansion sleeve 3 is also fitted onto the motor shaft 2 at the front end of the synchronous pulley 8. The expansion sleeve 3 is used to compress and limit the synchronous pulley 8. The expansion sleeve 3 is connected and fixed to the synchronous pulley 8 by a fastener. A pull plate 6 is provided in the hole within the flange 5.
[0037] An elastic retaining ring 7 is snapped into the hole inside the flange 5 near the bearing 4.
[0038] Example 7, please refer to Figure 1-5As shown, this utility model is a high-power motor shaft centering bracket, including a flange 5 fixedly sleeved on the motor shaft 2. The flange 5 is detachably fixed to the motor 1 by screws. The flange 5 has a groove 501 through which a belt 9 can pass. The flange 5 is in the shape of a barrel structure. The groove 501 is formed on the cylindrical wall of the barrel-shaped flange 5. There are two grooves 501.
[0039] The motor shaft 2 is also fitted with a synchronous pulley 8, which is a sleeve-shaped structure. Anti-slip strips are arranged in an annular pattern on the cylindrical wall of the synchronous pulley 8.
[0040] The flange 5 has a hole at the end furthest from the motor 1, and a bearing 4, which is a deep groove ball bearing, is installed inside the hole. The end of the motor shaft 2 is inserted into the bearing 4. An expansion sleeve 3 is also fitted onto the motor shaft 2 at the front end of the synchronous pulley 8. The expansion sleeve 3 is used to compress and limit the synchronous pulley 8. The expansion sleeve 3 is connected and fixed to the synchronous pulley 8 by a fastener. A pull plate 6 is provided in the hole within the flange 5.
[0041] An elastic retaining ring 7 is snapped into the hole inside the flange 5 near the bearing 4.
[0042] It is worth noting that:
[0043] Flange 5 is fixed to motor 1 with screws. The deep groove ball bearing is held in the flange 5 by the elastic retaining ring 7. At the same time, motor shaft 2 is held in the middle of the deep groove ball bearing. The motor shaft 2 extending from motor 1 has a supporting effect. The motor shaft centering bracket plays the role of supporting motor shaft 2 and reducing the deformation of motor shaft 2 under high power output.
[0044] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.
Claims
1. A high-power motor shaft centering bracket, characterized in that, The device includes a flange (5) fixedly mounted on the motor shaft (2), the flange (5) having a groove (501) through which a belt (9) can pass, a synchronous pulley (8) also being mounted on the motor shaft (2), a hole being provided at the end of the flange (5) away from the motor (1), a bearing (4) being provided in the hole, and the end of the motor shaft (2) being inserted into the bearing (4).
2. A high-power motor shaft centering bracket according to claim 1, characterized in that, The flange (5) is in the shape of a barrel, and the groove (501) is formed on the barrel wall of the flange (5).
3. A high-power motor shaft centering bracket according to claim 2, characterized in that, The number of slots (501) is two.
4. A high-power motor shaft centering bracket according to claim 1, characterized in that, An expansion sleeve (3) is also fitted on the motor shaft (2) at the front end of the synchronous wheel (8). The expansion sleeve (3) is used to squeeze and limit the synchronous wheel (8).
5. A high-power motor shaft centering bracket according to claim 4, characterized in that, The expansion sleeve (3) is connected and fixed to the synchronous wheel (8) by a fastener.
6. A high-power motor shaft centering bracket according to claim 5, characterized in that, An expansion sleeve pull plate (6) is provided at the hole in the flange (5).
7. A high-power motor shaft centering bracket according to claim 1, characterized in that, The synchronous pulley (8) has a sleeve-shaped structure, and anti-slip strips are arranged in an annular pattern on the cylindrical wall of the synchronous pulley (8).
8. A high-power motor shaft centering bracket according to claim 1, characterized in that, The flange (5) is detachably fixed to the motor (1) by screws.
9. A high-power motor shaft centering bracket according to claim 1, characterized in that, The bearing (4) is a deep groove ball bearing.
10. A high-power motor shaft centering bracket according to claim 1, characterized in that, An elastic retaining ring (7) is snapped into the hole inside the flange (5) near the bearing (4).