Assembling device for inner ring and outer ring of bearing

Abstract

The utility model discloses an assembling device for an inner ring and an outer ring of a bearing, which relates to the field of bearing processing, and is characterized in that the assembling device comprises an assembling table, a bearing outer ring limiting component is mounted at the top end of the assembling table, and the assembling device for the inner ring and the outer ring of the bearing further comprises a transmission mechanism arranged below the assembling table, the two arc-shaped plates A located on the assembling table are driven to move towards the two sides or the middle part; the pressure pushing assembly is used for driving the two arc-shaped plates A to move, when the arc-shaped plates A limit the bearing inner ring, the arc-shaped plates A are pushed to the part concentric with the bearing outer ring through pressure, and the effect is that the distance between the two arc-shaped plates A can be adjusted through the transmission device to adapt to the bearing inner rings with different diameters; the distance between the bearing inner ring and the bearing outer ring is the same all the time, the pressure pushing assembly only needs to push the same distance every time, and pushing errors caused by different diameters of the bearing inner ring can be well avoided.

Description

Technical Field

[0001] The utility model relates to the field of bearing processing, and more specifically, to an assembly device for a bearing inner ring and an outer ring. Background Technique

[0002] A bearing is a key component that plays a role in supporting and reducing friction during the mechanical transmission process. It usually consists of an inner ring, an outer ring, rolling elements, and a cage. The inner ring is tightly fitted to the shaft, and the outer ring is connected to the bearing housing. The rolling elements can be of different shapes such as balls, cylindrical rollers, tapered rollers, etc., and roll between the inner and outer rings, greatly reducing the frictional resistance during rotational motion and enabling the mechanical system to operate smoothly and efficiently. Bearings are widely used in various mechanical equipment such as automobiles, machine tools, motors, etc., and their accuracy and performance directly affect the working efficiency, reliability, and lifespan of the equipment. Different types of bearings are suitable for different working conditions and load requirements. For example, deep groove ball bearings are suitable for high-speed and light loads, while tapered roller bearings can withstand larger radial and axial loads. With the continuous progress of technology, the manufacturing processes and materials of bearings are also constantly innovating and improving to meet the increasingly stringent industrial requirements.

[0003] Currently, the commonly used assembly method during bearing processing is to first place the bearing inner ring in the bearing outer ring, and then use a pressure pushing device to push the bearing inner ring to a position deviating from the center of the bearing outer ring for the insertion of the rolling elements. After that, the pressure pushing device is used to push the bearing inner ring to a position concentric with the bearing outer ring, and then the cage is installed, and finally, the assembly of the bearing inner ring and the outer ring is completed. However, the existing pressure pushing device only uses a simple pushing block for pushing, and it cannot adapt to bearing inner rings with different diameters (in the same type of deep groove ball bearings, there may be slightly different but different inner diameter sizes while the outer diameter remains the same). Forced pushing is likely to cause errors and will affect the accuracy of the produced bearings. If the bearing inner ring has a position deviation during the pushing process, it will result in uneven clearance between the rolling elements and the inner and outer rings. This will cause vibration and noise during the operation of the bearing, reduce its rotational accuracy, and affect the working accuracy and stability of the mechanical equipment using this bearing.

[0004] Therefore, in order to solve the above technical problems, the present application proposes an assembly device for a bearing inner ring and an outer ring. Content of the Utility Model

[0005] Aiming at the deficiencies existing in the prior art, the purpose of the present utility model is to provide an assembly device for a bearing inner ring and an outer ring.

[0006] To achieve the above purpose, the present utility model provides the following technical solution: An assembly device for a bearing inner ring and an outer ring, including an assembly table, and a bearing outer ring limiting component is installed at the top of the assembly table. The assembly device for the bearing inner ring and the outer ring further includes:

[0007] A transmission mechanism is arranged below the assembly table and drives two arc-shaped plates A located on the assembly table to move towards both sides or the middle. When the arc-shaped plates A move towards both sides to a set distance, they will abut against both sides of the inner ring of the bearing relative to its center, thereby limiting the position between the inner ring of the bearing and the transmission mechanism.

[0008] A pressure pushing component is used to drive the movement of the two arc-shaped plates A. When the arc-shaped plates A limit the position of the inner ring of the bearing, it is pushed to a position concentric with the outer ring of the bearing by pressure.

[0009] Preferably, the transmission mechanism includes a frame-shaped plate arranged at the bottom of the assembly table. A screw rod driven by a motor is installed inside the frame-shaped plate, and the threads on both sides of the screw rod are opposite and symmetric about the middle part. Both sides of the outer side wall of the screw rod are threadedly connected with rod sleeves. The top of the rod sleeve is fixed to the bottom end of the arc-shaped plate A through a vertical plate. Longitudinal through grooves for the vertical plate to move longitudinally are opened on the tabletop of the assembly table. Both sides of the outer side wall of the sliding rod are slidably connected with sliding sleeves. The top of the sliding sleeve is fixed to the bottom end of the rod sleeve, and the linear movement of the rod sleeve is maintained through the sliding rod and the sliding sleeve.

[0010] Preferably, the pressure pushing component includes a connecting plate fixed below the assembly table. An electric hydraulic rod is fixedly connected to the surface of the connecting plate, and the transmission part of the electric hydraulic rod is fixed to the surface of the frame-shaped plate. Multiple transverse through grooves arranged in a longitudinal array and communicating with the longitudinal through grooves are opened on the tabletop of the assembly table for the transverse movement of the vertical plate.

[0011] Preferably, the bearing outer ring limiting component includes arc-shaped plates B installed on both sides of the top of the assembly table, and the bearing is limited by the arc-shaped plates B.

[0012] Preferably, the distance between the arc-shaped plates B can be adjusted to adapt to outer rings of bearings with different diameters, improving the applicability of the present assembly device.

[0013] Preferably, both sides of the top of the assembly table are fixedly connected with channel-shaped plates. An inner block is slidably connected inside the channel-shaped plates. The surface of the inner block is fixed to the back of the arc-shaped plate B through a connecting rod. Screw holes are opened on both sides of the inner block, and a plurality of through holes are opened on both sides of the channel-shaped plates at equal distances and arranged in a longitudinal array.

[0014] Preferably, a guide rail B is fixedly connected to the inner bottom wall of the channel-shaped plate. The bottom end of the inner block is slidably connected inside the guide rail B through a slider B. The inner block will drive the movement of the slider B during movement, and the slider B slides along the guide rail B to maintain the linear movement of the inner block relative to the channel-shaped plate, making it more convenient for the staff to operate.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] 1. The utility model can adjust the distance between two arc-shaped plates A through a transmission device to adapt to the inner rings of bearings with different diameters, so that the distance between the inner ring of the bearing and the outer ring of the bearing is always the same. The pressure pushing component only needs to push the same distance each time, which can well avoid the pushing error caused by different diameters of the inner rings of the bearings, thus solving the problem in the background technology that it cannot adapt to the inner rings of bearings with different diameters.

[0017] 2. The distance between the arc-shaped plates B of the utility model can be adjusted to adapt to the outer rings of bearings with different diameters, greatly improving the applicability of the assembly device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the utility model and form a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of the overall structure of the utility model (in the figure, M represents the outer ring of the bearing, and N represents the inner ring of the bearing);

[0020] Figure 2 is of the utility model Figure 1 partial enlarged view of structure A;

[0021] Figure 3 is a schematic diagram of the specific top structure of the utility model (in the figure, M represents the outer ring of the bearing, and N represents the inner ring of the bearing);

[0022] Figure 4 is a schematic diagram of the specific bottom structure of the utility model;

[0023] Figure 5 is of the utility model Figure 4 partial enlarged view of structure B;

[0024] Figure 6 is a schematic diagram of the connection structure of the frame-shaped plate in the utility model;

[0025] Figure 7 is a schematic diagram of the connection structure of the groove-shaped plate in the utility model.

[0026] In the figure: 1. Assembly table; 2. Bearing outer ring limiting component; 201. Arc plate B; 3. Transmission mechanism; 301. Frame-shaped plate; 302. Screw rod; 303. Motor; 304. Rod sleeve; 305. Vertical plate; 306. Slide rod; 307. Slide sleeve; 4. Pressure pushing component; 401. Connecting plate; 402. Electric hydraulic rod; 5. Longitudinal through groove; 6. Transverse through groove; 7. Arc plate A; 8. Inner block; 9. Connecting rod; 10. Screw hole; 11. Through hole; 12. Guide rail; 13. Slide block; 14. Groove-shaped plate. Detailed implementation manner

[0027] As Figure 1-7 shown, the present utility model provides an assembly device for a bearing inner ring and an outer ring, including an assembly table 1, on the top of which a bearing outer ring limiting component 2 is installed. The assembly device for the bearing inner ring and the outer ring further includes:

[0028] A transmission mechanism 3, which is arranged below the assembly table 1 and drives the two arc plates A7 located on the assembly table 1 to move towards both sides or towards the middle. When the arc plates A7 move towards both sides to a set distance, they will abut against both sides of the bearing inner ring relative to its center, thereby limiting the position between the bearing inner ring and the transmission mechanism 3;

[0029] A pressure pushing component 4, which is used to drive the movement of the two arc plates A7. When the arc plates A7 limit the bearing inner ring, it is pushed to the position concentric with the bearing outer ring by pressure.

[0030] During use, the bearing outer ring is placed in the limiting area of the bearing outer ring limiting component 2 at the top of the assembly table 1 by a manipulator or manually, and the bearing outer ring is limited by it. In the initial state, the distance between the two arc plates A7 is the closest, and the bearing inner ring can be sleeved into it. Then, the transmission mechanism 3 drives the two arc plates A7 to move towards both sides until they just abut against both sides of the bearing inner ring relative to its center. During the abutting process, the bearing outer ring will move under force. When the arc plates A7 completely limit it, it just reaches the position offset from the center of the bearing outer ring (that is, the position where the center of the bearing inner ring is offset from the center of the bearing outer ring), as Figure 1 and Figure 3As shown, at this position, the rolling elements can be placed in the space between the bearing outer ring and the bearing inner ring. Then, the pressure pushing component 4 is used to drive the movement of the two arc-shaped plates A7, thereby driving the movement of the bearing inner ring and moving the bearing inner ring to a position concentric with the bearing outer ring. After that, the cage can be installed. In this way, the distance between the two arc-shaped plates A7 can be adjusted through the transmission device to adapt to bearing inner rings of different diameters, ensuring that the distance by which the bearing inner ring deviates from the bearing outer ring is always the same (when the two arc-shaped plates A7 abut against both sides of the bearing inner ring relative to its center, the distances from the centers of bearing inner rings of different diameters to the center of the bearing outer ring are the same because the center of the bearing inner ring remains at the central part of the two arc-shaped plates A7 when it is limited and does not change). The pressure pushing component 4 only needs to push the same distance each time (and then reset), effectively avoiding the pushing error caused by different diameters of the bearing inner ring.

[0031] The transmission mechanism 3 includes a frame-shaped plate 301 arranged at the bottom of the assembly table 1. Inside the frame-shaped plate 301, there is a screw rod 302 driven by a motor 303. The threads on both sides of the screw rod 302 are opposite and symmetric about the middle part. Both sides of the outer sidewall of the screw rod 302 are threadedly connected with rod sleeves 304. The top of the rod sleeve 304 is fixed to the bottom of the arc-shaped plate A7 through a vertical plate 305. Longitudinal through grooves 5 for the longitudinal movement of the vertical plate 305 are provided on the tabletop of the assembly table 1. Both sides of the outer sidewall of the slide rod 306 are slidably connected with sliding sleeves 307. The top of the sliding sleeve 307 is fixed to the bottom of the rod sleeve 304. That is, when the motor 303 drives the screw rod 302 to rotate clockwise or counterclockwise, the screw rod 302 drives the two rod sleeves 304 to move towards both sides or towards the middle part simultaneously (since the threads on both sides of the screw rod 302 are opposite and symmetric about the middle part, the two rod sleeves 304 will move synchronously towards both sides or towards the middle part). The rod sleeve 304 drives the movement of the sliding sleeve 307 through the vertical plate 305, and the sliding sleeve 307 slides along the slide rod 306 to maintain the linear movement of the rod sleeve 304. When the two arc-shaped plates A7 move towards the middle part, the distance between them will be shortened, making it more convenient to insert the bearing inner ring at this time. When the arc-shaped plates A7 move towards both sides and abut against both sides of the bearing inner ring of different diameters relative to its center, it can be achieved by adjusting the rotation time of the motor 303 through the controller (controlling the rotation time of the motor 303 by the controller is an existing technology and will not be described in detail here). At this time, the arc-shaped plates A7 make longitudinal movement in the longitudinal through grooves 5.

[0032] The pressure pushing component 4 includes a connecting plate 401 fixed below the assembly table 1. The surface of the connecting plate 401 is fixedly connected with an electric hydraulic rod 402. The transmission part of the electric hydraulic rod 402 is fixed to the surface of the frame-shaped plate 301. A plurality of transverse through grooves 6 arranged in a longitudinal array and communicating with the longitudinal through grooves 5 are provided on the tabletop of the assembly table 1 for the transverse movement of the vertical plate 305.

[0033] That is, after the inner diameter of the bearing inner ring is limited by the arc-shaped plate A7, the frame-shaped plate 301 is pushed to move by the electro-hydraulic rod 402, so as to drive the transverse movement of the two arc-shaped plates A7 through the vertical plate 305, so that the bearing inner ring moves to a position concentric with the bearing outer ring. At this time, the vertical plate 305 moves along the inside of the transverse through groove 6. It should be noted that the transverse through groove 6 is divided into multiple strips. When the arc-shaped plate A7 clamps the bearing inner ring with different diameters, the distance between the two vertical plates 305 is different, and different distances move in different transverse through grooves 6.

[0034] The bearing outer ring limiting component 2 of the present utility model includes arc-shaped plates B201 installed on both sides of the top end of the assembly table 1, and the bearing is limited by the arc-shaped plates B201.

[0035] Furthermore, the distance between the arc-shaped plates B201 can be adjusted to adapt to bearing outer rings with different diameters. In this way, the present utility model can also adapt to bearing outer rings with different diameters. It should be noted that the distance between the two arc-shaped plates B201 needs to be kept consistent during adjustment, so that the center of the limited bearing outer ring is always the same, so as to cooperate with the above structure. The following is the specific adjustable structure: Both sides of the top end of the assembly table 1 are fixedly connected with channel-shaped plates 14. An inner block 8 is slidably connected inside the channel-shaped plate 14. The surface of the inner block 8 is fixed to the back of the arc-shaped plate B201 through a connecting rod 9. Screw holes 10 are opened on both sides of the inner block 8, and a plurality of through holes 11 are opened on both sides of the channel-shaped plate 14 at equal distances and arranged in a longitudinal array. A guide rail B12 is fixedly connected to the inner bottom wall of the channel-shaped plate 14. The bottom end of the inner block 8 is slidably connected to the guide rail B12 through a slider B13.

[0036] That is, the two arc-shaped plates B201 are pulled to move (need to be kept consistent). The arc-shaped plate B201 drives the inner block 8 to move through the connecting rod 9. The inner block 8 moves along the inside of the channel-shaped plate 14. The channel-shaped plate 14 drives the slider B13 to move. The slider B13 slides along the guide rail B12 to maintain the linear movement of the inner block 8 relative to the channel-shaped plate 14, which is more convenient for the staff to operate. When the two arc-shaped plates B201 move to an appropriate position (just able to limit the bearing outer ring), the screws pass through the through holes 11 at the corresponding positions on the channel-shaped plate 14 and are screwed into the screw holes 10 on the inner block 8 in the clockwise direction, so as to complete the fixation between the inner block 8 and the channel-shaped plate 14, and thus fix the positions of the two arc-shaped plates B201.

[0037] It should be noted that the widths of the longitudinal through groove 5 and the transverse through groove 6 are small and will not cause the rolling elements to fall off.

[0038] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and the above description; however, any slight changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any changes, modifications and evolutions made to the above embodiments according to the substantial technology of the present utility model are still within the protection scope of the technical solution of the present utility model.

Claims

1. An assembly device for an inner ring and an outer ring of a bearing, characterized in that: The assembly platform (1) comprises a bearing outer ring limiting assembly (2) installed on the top of the assembly platform (1), and the assembly device for the bearing inner ring and outer ring further comprises: The transmission mechanism (3) is arranged below the assembly table (1) and drives two arc-shaped plates A (7) on the assembly table (1) to move to the sides or to the middle. When the arc-shaped plates A (7) move to the sides to a set distance, they will press against the two sides of the inner ring of the bearing relative to its center, thereby limiting the position between the inner ring of the bearing and the transmission mechanism (3); The pressure pushing assembly (4) is used to drive the movement of the two arc plates A (7). When the arc plates A (7) limit the inner ring of the bearing, they are pushed to a position cocentric with the outer ring of the bearing by pressure.

2. The assembly device for the inner ring and outer ring of a bearing according to claim 1, characterized in that: The transmission mechanism (3) comprises a frame plate (301) arranged at the bottom of the assembly table (1), a screw rod (302) driven by a motor (303) is installed inside the frame plate (301), and the threads on both sides of the screw rod (302) are opposite and symmetrical about the middle part, both sides of the outer wall of the screw rod (302) are threadedly connected with rod sleeves (304), the top of the rod sleeve (304) is fixed to the bottom end of the arc plate A (7) through a vertical plate (305), a longitudinal through groove (5) for the vertical plate (305) to move longitudinally is opened on the table surface of the assembly table (1), a sliding rod (306) is fixedly connected to the part of the frame plate (301) located below the screw rod (302), and both sides of the outer wall of the sliding rod (306) are slidably connected with sliding sleeves (307), and the top of the sliding sleeve (307) is fixed to the bottom end of the rod sleeve (304).

3. The assembly device for the inner ring and outer ring of a bearing according to claim 2, characterized in that: The pressure push assembly (4) comprises a connecting plate (401) fixed below the assembly table (1); an electric hydraulic rod (402) is fixedly connected to the surface of the connecting plate (401); a transmission portion of the electric hydraulic rod (402) is fixed to the surface of the frame plate (301); and a plurality of transverse through grooves (6) arranged longitudinally in an array and communicating with the longitudinal through grooves (5) are provided on the surface of the assembly table (1) to facilitate transverse movement of the vertical plate (305).

4. The assembly device for the inner ring and outer ring of a bearing according to claim 1, characterized in that: The bearing outer ring limiting assembly (2) comprises arc plates B (201) installed on both sides of the top of the assembly platform (1), and the bearing is limited by the arc plates B (201).

5. The assembly device for the inner ring and outer ring of a bearing according to claim 4, characterized in that: The distance between the arc-shaped plates B (201) can be adjusted to accommodate bearing outer rings of different diameters.

6. The assembly device for the inner ring and outer ring of a bearing according to claim 5, characterized in that: Both sides of the top of the assembly table (1) are fixedly connected to a grooved plate (14), the interior of the grooved plate (14) is slidably connected to an inner block (8), the surface of the inner block (8) is fixed to the back of the arc plate B (201) via a connecting rod (9), screw holes (10) are provided on both sides of the inner block (8), and a plurality of through holes (11) are provided on both sides of the grooved plate (14) that are equidistant and distributed in a longitudinal array.

7. The assembly device for the inner ring and outer ring of a bearing according to claim 6, characterized in that: A guide rail B (12) is fixedly connected to the inner bottom wall of the grooved plate (14), and the bottom end of the inner block (8) is slidably connected to the guide rail B (12) via a slider B (13).

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