Bearing assembling device with bearing protection function

Abstract

The utility model relates to the technical field of bearing assembly, in particular to a bearing assembly device with a bearing protection function, which comprises an adjusting mechanism, the adjusting mechanism comprises a conical rod, an extension plate is arranged on the inner wall of the conical rod, the inner wall of the conical rod is slidably connected with the outer side of one end of the extension plate in a penetrating manner, an oblique arm is arranged at one end of the extension plate, and the oblique arm is fixedly connected with the conical rod. According to the bearing assembling device with the bearing protection function, a second lead screw rotates in an inner pipe, downward pressure is applied to a middle-position disc, in the process, extension plates are connected with the middle-position disc through oblique arms, then the three extension plates slide out of a conical rod at the same time, when the extension plates make contact with clamping jaws, the clamping plates make contact with the clamping jaws, and meanwhile the clamping plates make contact with the clamping jaws. When the large bearing outer ring is fixed, the external expansion capacity of the clamping jaws is increased in the mode, and the problem that the large-size bearing is not firmly fixed due to the fact that the clamping jaws do not expand outwards, and then scratches are generated on the surface of a raceway due to relative deviation of the inner ring and the outer ring in the assembling process is solved.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly technology, specifically to a bearing assembly device with bearing protection function. Background Technology

[0002] Bearings are mechanical components used to support rotating or oscillating shafts in machinery. Their main function is to reduce the coefficient of friction between moving parts while bearing loads. They are one of the fundamental components of the machinery industry and are widely used in automobiles, motors, machine tools, aerospace, rail transportation, and other fields.

[0003] In existing technologies, some users choose to use a three-jaw puller to assemble bearings. The three-jaw puller uses a progressive pressing method to replace the traditional hammering method, reducing deformation or damage caused by uneven force. Compared with hydraulic presses, it is more portable and suitable for flexible operation scenarios such as on-site maintenance. The screw thread transmission amplifies the torque to achieve labor-saving operation, reducing labor intensity and safety risks.

[0004] However, when using a three-jaw puller to assemble bearings, if the bearing has a large diameter, the limited outward expansion capacity of the jaws may cause them to slip due to insufficient size or material strength, resulting in the bearing suddenly falling off or tool parts flying off. At the same time, it can cause the inner and outer rings to shift relative to each other during the assembly process, resulting in scratches on the raceway surface. To address this, we propose a bearing assembly device with bearing protection function. Utility Model Content

[0005] One of the technical problems to be solved by this application is that by expanding the three-grip puller, it is possible to further increase the applicability of bearings of different diameters.

[0006] To address the aforementioned technical problems, this application provides a bearing assembly device with bearing protection function, including an adjustment mechanism. An auxiliary mechanism is provided on the inner wall of the adjustment mechanism. The adjustment mechanism includes a tapered rod, and an extension plate is provided on the inner wall of the tapered rod. The inner wall of the tapered rod is slidably connected to the outer side of one end of the extension plate. A slanted arm is provided at one end of the extension plate, and the end of the extension plate is rotatably connected to the bottom end of the slanted arm. A center plate is provided at the top of the slanted arm, and the top of the slanted arm is rotatably connected to the inner wall of the center plate. A second lead screw is provided on the top side of the center plate, and the top side of the center plate is rotatably in contact with the bottom end of the second lead screw.

[0007] In some embodiments, the auxiliary mechanism includes a spring, one end of which is provided with a horizontal plate, one end of which is fixedly connected to one side of the horizontal plate, one end of which is fixedly connected to the inner wall of the tapered rod, and the side of the spring away from the horizontal plate is fixedly connected to the inner wall of the extension plate.

[0008] In some embodiments, a lead screw is provided at the top of the tapered rod, the top of the tapered rod is rotatably connected to the bottom of the lead screw, a base is provided on the outside of the lead screw, and the outside of the lead screw is rotatably connected to the center of the base through a thread.

[0009] In some embodiments, a fixed plate is provided at the top of the chassis, the top of the chassis is fixedly connected to the bottom side of the fixed plate, and the center of the fixed plate is rotatably connected to a lead screw.

[0010] In some embodiments, an inner tube is provided on the inner side of the lead screw, the inner side of the lead screw and the outer side of the inner tube are slidably connected through the lead screw, and the inner wall of the inner tube is rotatably connected to the outer side of the lead screw.

[0011] In some embodiments, a sliding rod is provided at the top end of the tapered rod, the top end of the tapered rod is fixedly connected to the bottom end of the sliding rod, and the outer side of the sliding rod is slidably connected through the inner walls of the chassis and the fixed plate, respectively.

[0012] In some embodiments, a claw is provided on the inner wall of the edge of the chassis, the inner wall of the edge of the chassis is rotatably connected to the top of the claw, and one side of the claw is slidably in contact with the outer side of the cone rod.

[0013] In some embodiments, a protective sleeve is provided on the outer side of the bottom end of the cone rod, and the outer side of the bottom end of the cone rod is fixedly connected to the inner side of the protective sleeve.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. By rotating the second lead screw in the inner tube, downward pressure is applied to the center plate. During this process, the extension plate is connected to the center plate through the inclined arm, and then the three extension plates slide out from the tapered rod at the same time. In this way, when in contact with the chuck, the contact is changed to the chuck plate and the chuck. At the same time, when fixing the outer ring of a larger bearing, this method increases the outward expansion capacity of the chuck, avoiding the problem of large-size bearings not being securely fixed due to insufficient outward expansion of the chuck, which would cause the inner and outer rings to be relatively misaligned during assembly and cause scratches on the raceway surface.

[0016] 2. By using the sliding rod fixed to the top of the cone rod, when the cone rod moves downward, the sliding rod ensures that the cone rod moves vertically downward along the axis, thereby ensuring that the extension plate is always in contact with the chuck, and preventing the extension plate from disengaging from the chuck due to the rotation of the cone rod, which would prevent the chuck from expanding further. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side sectional view of the structural adjustment mechanism component of this utility model;

[0019] Figure 3 This is an enlarged structural schematic diagram of the adjustment mechanism component of this utility model;

[0020] Figure 4 This is a top view of the adjustment mechanism assembly of this utility model;

[0021] Figure 5 This is a side view of the adjustment mechanism assembly of this utility model;

[0022] Figure 6 This is a schematic diagram of the detached structure of the adjustment mechanism components of this utility model;

[0023] In the diagram: 1. Adjustment mechanism; 11. Fixed plate; 12. Chassis; 13. Conical rod; 14. Lead screw one; 15. Inner tube; 16. Lead screw two; 17. Center plate; 18. Slanted arm; 19. Extension plate; 110. Slide rod; 111. Protective sleeve; 112. Claw;

[0024] 2. Auxiliary mechanism; 21. Spring; 22. Horizontal plate. Detailed Implementation

[0025] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figure 1 - Figure 6This utility model provides a technical solution: a bearing assembly device with bearing protection function, including an adjustment mechanism 1, an auxiliary mechanism 2 provided on the inner wall of the adjustment mechanism 1, the adjustment mechanism 1 including a tapered rod 13, an extension plate 19 provided on the inner wall of the tapered rod 13, the inner wall of the tapered rod 13 and the outer side of one end of the extension plate 19 being slidably connected through, a slanted arm 18 provided on one end of the extension plate 19, and the bottom end of the slanted arm 18 being rotatably connected to the extension plate 19. A middle plate 17 is provided at the top of the inclined arm 18. The top of the inclined arm 18 is rotatably connected to the inner wall of the middle plate 17. A second lead screw 16 is provided on the top side of the middle plate 17. The top side of the middle plate 17 is rotatably in contact with the bottom end of the second lead screw 16. A first lead screw 14 is provided at the top of the tapered rod 13. The top of the tapered rod 13 is rotatably connected to the bottom end of the first lead screw 14. A base plate 12 is provided on the outer side of the first lead screw 14. The outer side of the first lead screw 14 passes through the center of the base plate 12. The base 12 is connected by a threaded rotational connection. A fixed plate 11 is located at the top of the base 12, and the top of the base 12 is fixedly connected to the bottom side of the fixed plate 11. The center of the fixed plate 11 is rotatably connected to a lead screw 14. An inner tube 15 is located inside the lead screw 14, and the inner side of the lead screw 14 is slidably connected to the outer side of the inner tube 15. The inner wall of the inner tube 15 is threadedly rotatably connected to the outer side of a second lead screw 16. A sliding rod 110 is located at the top of the tapered rod 13. The top end of 3 is fixedly connected to the bottom end of the slide rod 110. The outer side of the slide rod 110 is slidably connected to the inner wall of the base plate 12 and the fixed plate 11 respectively. The inner wall of the edge of the plate is provided with a claw 112. The inner wall of the edge of the base plate 12 is rotatably connected to the top end of the claw 112. One side of the claw 112 is slidably in contact with the outer side of the cone rod 13. The outer side of the bottom end of the cone rod 13 is provided with a protective sleeve 111. The outer side of the bottom end of the cone rod 13 is fixedly connected to the inner side of the protective sleeve 111.

[0027] When using this type of bearing assembly device with bearing protection function, firstly, the pawl 112 is placed inside the outer ring of the bearing, and then the inner ring is placed at the center of the outer ring. Since the top of the pawl 112 is designed with a base plate 12, the pawl 112 is located on the inner wall of the edge of the base plate 12, and the top side of the base plate 12 is connected to the fixed plate 11. The base plate 12 and the fixed plate 11 are integrated. The fixed plate 11 and the center of the base plate 12 are threadedly connected to the lead screw 14. Thus, the bearing assembly is completed.

[0028] Three extension plates 19 are designed on the inner side of the tapered rod 13. One end of each extension plate 19 is connected to the intermediate plate 17. The top side of the intermediate plate 17 is connected to the bottom end of the lead screw 16 in contact. Therefore, when the lead screw 16 rotates, the inner tube 15 on the outer side of the lead screw 16 engages with the lead screw 16 through the threaded engagement, causing the lead screw 16 to move down from its original position, thus exerting downward pressure on the intermediate plate 17. During this process, the extension plates 19 and the intermediate plate 17 are connected by a slanted arm. 18 is connected, and then the three extension plates 19 slide out from the tapered rod 13 at the same time. In this way, when in contact with the pawl 112, the contact is changed to the pawl plate contacting the pawl 112. At the same time, when fixing a larger bearing outer ring, this method increases the outward expansion capacity of the pawl 112, thereby realizing adaptive clamping for bearing outer rings of different outer diameters, expanding the applicable range of the device, and avoiding the problem of large-size bearings not being firmly fixed due to insufficient outward expansion of the pawl 112, which would cause the inner ring and outer ring to be relatively offset and scratches to the raceway surface during assembly.

[0029] A sliding rod 110 is designed at the top of the tapered rod 13, and the two are fixedly connected. At the same time, the outer side of the sliding rod 110 is located in the chassis 12 and the fixed plate 11. In this way, when the tapered rod 13 moves down, the sliding rod 110 ensures that the tapered rod 13 moves vertically downward along the axial direction, thereby ensuring that the extension plate 19 is always in contact with the pawl 112. This prevents the extension plate 19 from disengaging from the pawl 112 due to the rotation of the tapered rod 13, which would prevent the pawl 112 from expanding further. Finally, a protective sleeve 111 is designed on the outer side of the bottom end of the tapered rod 13 to prevent surface damage to the bearing due to its rigid properties when in contact with the bearing.

[0030] Example 2: Please refer to Figure 4 - Figure 5 The auxiliary mechanism 2 includes a spring piece 21, one end of which is provided with a horizontal plate 22. One end of the spring piece 21 is fixedly connected to one side of the horizontal plate 22, one end of the horizontal plate 22 is fixedly connected to the inner wall of the cone rod 13, and the side of the spring piece 21 away from the horizontal plate 22 is fixedly connected to the inner wall of the extension plate 19.

[0031] A horizontal plate 22 is designed on the inner wall of the extension plate 19. The horizontal plate 22 passes through the extension plate 19 and is connected to the inner wall of the cone rod 13. At the same time, a spring piece 21 is designed on one side of the horizontal plate 22. The other end of the spring piece 21 is fixed to the inner wall of the extension plate 19. Therefore, after the lead screw 16 gradually retracts, the intermediate plate 17 is no longer under pressure. Then, the spring piece 21 uses its own retraction property to reset the extension plate 19, allowing it to re-enter the inner wall of the cone rod 13. The connection between the horizontal plate 22 and the cone rod 13 provides guidance and support for the retraction of the extension plate 19, ensuring that the extension plate 19 slides smoothly along the inner wall of the cone rod 13 during the retraction process. This avoids jamming caused by retraction deviation, which would prevent the extension plate 19 from effectively retracting into the cone rod 13.

[0032] Please see Figure 1 - Figure 6 By rotating the lead screw 14, the tapered rod 13 at the bottom of the lead screw 14 moves up and down in its original position under the influence of the thread. Then, during the downward movement, due to the irregular shape of the chuck 112, an external force is generated at the corner of the tapered rod 13 and the chuck 112. At this time, the chuck 112 is in close contact with the outer ring of the bearing. As the tapered rod 13 moves down, it will exert downward pressure on the inner ring, causing it to enter the outer ring. In order to increase the flexibility of the chuck 112, the lead screw 16 is rotated, causing the lead screw 16 to move down in the inner tube 15. During this process, the extension plate 19 is connected to the middle plate 17 through the inclined arm 18. Then, the three extension plates 19 slide out from the tapered rod 13 at the same time. In this way, when contacting the chuck 112, the contact is changed to the clamping plate and the chuck 112. At the same time, when fixing a larger bearing outer ring, this method increases the outward expansion capacity of the chuck 112, thereby realizing adaptive clamping for bearing outer rings of different outer diameters.

[0033] The horizontal plate 22 passes through the extension plate 19 in a through-hole manner. At the same time, a spring piece 21 is designed on one side of the horizontal plate 22. The other end of the spring piece 21 is fixed to the inner wall of the extension plate 19. Therefore, after the lead screw 16 gradually retracts, the middle plate 17 is no longer under pressure. Then, the spring piece 21 uses its own retraction property to reset the extension plate 19, so that it re-enters the inner wall of the cone rod 13. The connection between the horizontal plate 22 and the cone rod 13 provides guidance and support for the reset of the extension plate 19.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A bearing assembly device having a bearing protection function, characterized by: The adjusting mechanism (1) is provided with an auxiliary mechanism (2) on the inner wall of the adjusting mechanism (1), the adjusting mechanism (1) comprises a taper rod (13), the inner wall of the taper rod (13) is provided with an extension plate (19), the inner wall of the taper rod (13) is slidably connected with one end of the extension plate (19) outside, one end of the extension plate (19) is provided with an inclined arm (18), one end of the extension plate (19) is rotatably connected with the bottom end of the inclined arm (18), the top end of the inclined arm (18) is provided with a middle disc (17), the top end of the inclined arm (18) is rotatably connected with the inner wall of the middle disc (17), the top side of the middle disc (17) is provided with a screw rod two (16), and the top side of the middle disc (17) is rotatably connected with the bottom end of the screw rod two (16).

2. The bearing assembly device with a bearing protection function according to claim 1, characterized in that: The auxiliary mechanism (2) comprises a spring sheet (21), one end of the spring sheet (21) is provided with a horizontal plate (22), one end of the spring sheet (21) is fixedly connected with one side of the horizontal plate (22), one end of the horizontal plate (22) is fixedly connected with the inner wall of the taper rod (13), and the side, away from the horizontal plate (22), of the spring sheet (21) is fixedly connected with the inner wall of the extension plate (19).

3. The bearing assembly device with a bearing protection function according to claim 1, characterized in that: The top end of the taper rod (13) is provided with a screw rod one (14), the top end of the taper rod (13) is rotatably connected with the bottom end of the screw rod one (14), the outer side of the screw rod one (14) is provided with a bottom disc (12), and the outer side of the screw rod one (14) is threadedly rotatably connected with the center of the bottom disc (12).

4. The bearing assembly device with a bearing protection function according to claim 3, characterized in that: The top end of the bottom disc (12) is provided with a fixed disc (11), the top end of the bottom disc (12) is fixedly connected with the bottom side of the fixed disc (11), and the center of the fixed disc (11) is rotatably connected with the screw rod one (14).

5. The bearing assembly device with a bearing protection function according to claim 4, characterized in that: The inner side of the screw rod one (14) is provided with an inner tube (15), the inner side of the screw rod one (14) is slidably connected with the outer side of the inner tube (15), and the inner wall of the inner tube (15) is threadedly rotatably connected with the outer side of the screw rod two (16).

6. The bearing assembly device with a bearing protection function according to claim 5, characterized in that: The top end of the taper rod (13) is provided with a sliding rod (110), the top end of the taper rod (13) is fixedly connected with the bottom end of the sliding rod (110), and the outer side of the sliding rod (110) is slidably connected with the inner walls of the bottom disc (12) and the fixed disc (11).

7. The bearing assembly device with a bearing protection function according to claim 6, characterized in that: The inner wall of the edge of the bottom disc (12) is provided with a claw (112), the inner wall of the edge of the bottom disc (12) is rotatably connected with the top end of the claw (112), and one side of the claw (112) is slidably connected with the outer side of the taper rod (13).

8. The bearing assembly device with a bearing protection function according to claim 7, characterized in that: The outer side of the bottom end of the taper rod (13) is provided with a protective sleeve (111), and the outer side of the bottom end of the taper rod (13) is fixedly connected with the inner side of the protective sleeve (111).

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