Auxiliary tool for assembling inner component of tapered roller bearing

Abstract

According to the auxiliary tool for assembling the inner component of the tapered roller bearing, the supporting seat, the retainer positioning ring and the tapered roller positioning piece which are sequentially connected and fixed from bottom to top are arranged, so that the inner component of the tapered roller bearing can be sequentially positioned at multiple angles; when the small end of the retainer faces downwards and is placed on the supporting seat through radial positioning of the retainer positioning ring, a plurality of pockets in the retainer can correspond to a plurality of arc-shaped grooves in the tapered roller positioning piece in a one-to-one mode, and when the small ends of a plurality of tapered rollers face downwards and are placed into the arc-shaped grooves, the tapered rollers can automatically fall into the pockets of the retainer; and the retainer is moved upwards to drive the tapered rollers to move upwards together to be in contact with the inner ring, so that the inner assembly is assembled. The device is reasonable in overall design, convenient to use and capable of rapidly and reliably achieving assembly of the inner assembly of the tapered roller bearing, the assembly precision and the assembly efficiency of the inner assembly of the tapered roller bearing are improved, and then the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing and assembly, in particular to an auxiliary tool for assembling inner components of a tapered roller bearing. Background Art

[0002] The rolling element of the tapered roller bearing is a tapered roller, which is a separable bearing and one of the widely used components in modern machinery. It consists of a separable outer ring and an inner component, which can withstand radial loads and axial loads in a single direction. It has the advantages of small starting torque, high rotation accuracy, and convenient selection. The inner component includes a cage, an inner ring, and a tapered roller located between the cage and the inner ring. The inner ring has a raceway formed by a small rib and a large rib. The large and small ribs of the inner ring and the cage lock the tapered roller in the inner ring raceway to form an inseparable inner component.

[0003] At present, the assembly of tapered roller bearings is mainly the assembly of its inner components, and its assembly is mainly the process of fixing the tapered roller to the inner ring raceway through the cage. In the prior art, there are many problems in the assembly process of the inner components, such as low bearing assembly accuracy, time-consuming and labor-intensive assembly process, high labor intensity of workers, and very low assembly efficiency, which seriously affects production efficiency. Summary of the invention

[0004] The technical purpose of the utility model is to provide an auxiliary tooling for assembling the inner components of a tapered roller bearing, which has a simple structure, is easy to use, can quickly and reliably assemble the inner components of a tapered roller bearing, has high assembly efficiency, low labor intensity, and good assembly accuracy.

[0005] The utility model solves the above technical problems and adopts the following technical solutions: an auxiliary tool for assembling inner components of a tapered roller bearing, comprising a support seat, a cage positioning ring and a tapered roller positioning piece which are arranged in sequence from bottom to top, the upper surface of the support seat is used to place the cage, the cage positioning ring is arranged in the middle of the upper surface of the support seat, the cage positioning ring is a truncated cone structure, and its diameter is smaller than the inner diameter of the small end of the cage, so as to realize the positioning of the small end of the cage, and the height of the cage positioning ring is higher than the distance from the end face of the small end of the cage to the bottom of the pocket hole;

[0006] The tapered roller positioning piece is arranged in a truncated cone shape on the upper surface of the retainer positioning ring and is coaxially arranged with the retainer positioning ring. The height of the truncated cone-shaped tapered roller positioning piece is located between the end face of the large end of the retainer and the top of the pocket hole. A plurality of arc-shaped grooves that are the same in number as the pocket holes on the retainer are evenly opened in the circumferential direction on the outer wall surface of the tapered roller positioning piece. The diameter of the arc-shaped groove is larger than the diameter of the large end of the tapered roller, so that when the small end of the retainer is placed downward on the support seat, the tapered roller can slide downward along the small end of the arc-shaped groove into the retainer pocket hole corresponding to the arc-shaped groove. Then, when the retainer is pulled upward by force, it can drive the tapered roller to slide along the arc-shaped groove into the inner ring raceway coaxially placed on the upper surface of the tapered roller positioning piece to complete the assembly of the inner components of the tapered roller bearing.

[0007] Preferably, the support seat is in a truncated cone structure, and the retaining frame positioning ring is arranged at the center of the upper surface of the truncated cone support seat.

[0008] Preferably, the diameter of the support seat is larger than the outer diameter of the small end of the retaining frame.

[0009] Preferably, the diameter of the support seat is larger than the outer diameter of the large end of the retaining frame.

[0010] Preferably, the diameter of the retainer locating ring is 0.02-0.05 mm smaller than the inner diameter of the small end of the retainer.

[0011] Preferably, the height of the retainer locating ring is 0.3-0.5 mm higher than the distance from the end face of the retainer small end to the bottom of the pocket hole.

[0012] Preferably, the diameter of the arc-shaped groove is 0.01-0.03 mm larger than the diameter of the large end of the tapered roller.

[0013] Preferably, the diameter of the truncated cone-shaped tapered roller positioning member is larger than the outer diameter of the small end of the inner ring.

[0014] Preferably, the support seat, the retainer locating ring and the tapered roller locating member are an integrated structure.

[0015] Beneficial effects:

[0016] The utility model is an auxiliary tooling for assembling the inner components of a tapered roller bearing, which has a simple structure and is easy to use. By sequentially connecting and fixing the support seat, the retainer positioning ring and the tapered roller positioning piece from bottom to top, the inner components of the tapered roller bearing can be positioned in sequence at multiple angles, so that when the small end of the retainer is placed on the support seat with the small end facing downwards and relying on the radial positioning of the retainer positioning ring, the multiple pockets on the retainer can correspond one by one with the multiple arc-shaped grooves on the tapered roller positioning piece, so that when the small ends of multiple tapered rollers are placed in the arc-shaped grooves with the small ends facing downwards, the tapered rollers can fall into the retainer pockets by themselves, and then by moving the retainer upwards, the multiple tapered rollers can be driven to move up together and contact the inner ring to complete the assembly of the inner components. The overall design of the device is reasonable, the cost is low, and it is easy to use. It can quickly and reliably realize the assembly of the inner components of the tapered roller bearing, improve the assembly accuracy and assembly efficiency of the inner components of the tapered roller bearing, and then effectively improve the production efficiency, and the practical effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure when the utility model is used;

[0019] Figure numerals: 1. support seat, 2. cage locating ring, 3. tapered roller locating piece, 4. cage, 5. arc-shaped groove, 6. tapered roller, 7. inner ring. DETAILED DESCRIPTION

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1 and Figure 2 As shown, an auxiliary tooling for assembling the inner components of a tapered roller bearing of the utility model comprises a support seat 1, a retainer positioning ring 2 and a tapered roller positioning piece 3 which are arranged in sequence from bottom to top in the device structure. The support seat 1, the retainer positioning ring 2 and the tapered roller positioning piece 3 are an integrated structure. The support seat 1 is a truncated cone structure, and its upper surface is used to place the retainer 4. The diameter of the support seat 1 is larger than the outer diameter of the large end of the retainer 4. The retainer positioning ring 2 is arranged at the center of the upper surface of the support seat 1. The retainer positioning ring 2 is also a truncated cone structure, and the diameter of the retainer positioning ring 2 is 0.02~0.05mm smaller than the inner diameter of the small end of the retainer 4 to realize the positioning of the small end of the retainer 4. The height of the retainer positioning ring 2 is 0.3~0.5mm higher than the distance from the end face of the small end of the retainer 4 to the bottom of the pocket hole;

[0022] The tapered roller positioning member 3 is arranged in a truncated cone shape on the upper surface of the retainer positioning ring 2 and is coaxially arranged with the retainer positioning ring 2. The height of the truncated cone-shaped tapered roller positioning member 3 is located between the end face of the large end of the retainer 4 and the top of the pocket. A plurality of arc-shaped grooves 5 that are the same as the number of pockets on the retainer 4 are evenly opened in the circumferential direction on the outer wall surface of the tapered roller positioning member 3. The diameter of the arc-shaped groove 5 is 0.01~0.03mm larger than the diameter of the large end of the tapered roller 6. When the small end of the retainer 4 is placed downward on the support seat 1, the tapered roller 6 can slide downward along the small end of the arc-shaped groove 5 into the pocket of the retainer 4 corresponding to the arc-shaped groove 5. Then, when the retainer 4 is pulled upward by force, the tapered roller 6 can be driven to slide along the arc-shaped groove 5 into the raceway of the inner ring 7 coaxially placed on the upper surface of the tapered roller positioning member 3 to complete the assembly of the inner components of the tapered roller 6 bearing.

[0023] Preferably, the diameter of the truncated cone-shaped tapered roller positioning member 3 is larger than the outer diameter of the small end of the inner ring 7 .

[0024] When the utility model is used as an auxiliary tool for assembling the inner component of a tapered roller bearing, the retainer 4 is placed on the support seat 1 with the small end facing downwards, and is positioned by the retainer positioning ring 2. The multiple pockets on the retainer 4 correspond to the multiple arc-shaped grooves 5 one by one. The tapered rollers 6 are placed into the arc-shaped grooves 5 with the small ends facing downwards. The tapered rollers 6 can fall into the pockets of the retainer 4 by themselves. The inner ring 7 is placed on the upper end of the tapered roller positioning piece 3, and then the retainer 4 is moved upwards to drive the tapered rollers 6 to move upwards and contact the inner ring 7, thus completing the assembly of the inner component.

[0025] Example 1

[0026] The utility model discloses an auxiliary tooling for assembling inner components of a tapered roller bearing. The bottom of the auxiliary tooling is a support seat 1. The diameter of the support seat 1 is larger than the outer diameter of the small end of the tapered roller bearing retainer 4, and supports the retainer 4. The middle part of the auxiliary tooling is a retainer positioning ring 2. The diameter of the retainer positioning ring 2 is smaller than the inner diameter of the small end of the retainer 4 by 0.02-0.05 mm, and positions the retainer 4 and facilitates the removal of the retainer 4. The height of the retainer positioning ring 2 is higher than the distance from the end face of the small end of the retainer 4 to the pocket hole by 0.3-0.5 mm, and facilitates the installation of the tapered roller 6. The upper end of the cage positioning ring 2 is a tapered roller positioning member 3, the height of the tapered roller positioning member 3 is slightly lower than the upper end height of the cage 4 pocket hole, and the outer wall of the tapered roller positioning member 3 is uniformly provided with arc grooves 5 for matching tapered rollers 6 in a circular array, the number of arc grooves 5 is consistent with the number of cage 4 pocket holes, the diameter of the arc groove 5 is 0.01~0.03mm larger than the diameter of the large end of the tapered roller 6, and the distance from the center of the arc edge of each arc groove 5 to the inner wall of the large end of the cage 4 is 0.01~0.03mm larger than the diameter of the large end of the tapered roller 6, which is convenient for the installation of the tapered roller 6. When using this auxiliary tooling for assembly, the operation is simple, convenient and fast, the assembly efficiency is improved, the labor cost is reduced, and the production efficiency is also significantly improved.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the utility model, and is not intended to limit the entire content of the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still make formal modifications to the technical solutions recorded in the above embodiments, or make equivalent replacements for some of the technical features therein. All formal modifications, equivalent replacements, etc. made within the inspiration of the idea of ​​the utility model should be included in the scope of protection of the rights of the utility model.

Claims

1. An auxiliary tool for assembling inner components of a tapered roller bearing, characterized in that: The invention comprises a support seat (1), a retainer positioning ring (2) and a tapered roller positioning member (3) which are arranged in sequence from bottom to top, the upper surface of the support seat (1) is used to place the retainer (4), the retainer positioning ring (2) is arranged in the middle of the upper surface of the support seat (1), the retainer positioning ring (2) is in a truncated cone structure, and its diameter is smaller than the inner diameter of the small end of the retainer (4) so ​​as to realize the positioning of the small end of the retainer (4), and the height of the retainer positioning ring (2) is higher than the distance from the end face of the small end of the retainer (4) to the bottom of the pocket hole; The tapered roller positioning member (3) is arranged in a truncated cone shape on the upper surface of the retainer positioning ring (2) and is coaxially arranged with the retainer positioning ring (2). The height of the truncated cone-shaped tapered roller positioning member (3) is located between the large end face of the retainer (4) and the top of the pocket hole. A plurality of arc-shaped grooves (5) are evenly opened in the circumferential direction on the outer wall surface of the tapered roller positioning member (3) and the number of the pocket holes on the retainer (4) is the same. The diameter of the arc-shaped groove (5) is larger than the large end face of the tapered roller (6). The diameter of the end is such that when the retainer (4) is placed on the support seat (1) with the small end facing downward, the tapered roller (6) can slide downward along the small end of the arc-shaped groove (5) into the pocket of the retainer (4) corresponding to the arc-shaped groove (5), and then when the retainer (4) is pulled upward by force, the tapered roller (6) can be driven to slide along the arc-shaped groove (5) into the raceway of the inner ring (7) coaxially placed on the upper surface of the tapered roller positioning member (3), so as to complete the assembly of the inner components of the tapered roller (6) bearing.

2. The auxiliary tooling for assembling inner components of a tapered roller bearing according to claim 1, characterized in that: The support seat (1) is in the form of a truncated cone, and the retaining frame positioning ring (2) is arranged at the center of the upper surface of the truncated cone-shaped support seat (1).

3. The auxiliary tooling for assembling inner components of a tapered roller bearing according to claim 2, characterized in that: The diameter of the support seat (1) is larger than the outer diameter of the small end of the retaining frame (4).

4. The auxiliary tool for assembling inner components of a tapered roller bearing according to claim 2 or 3, characterized in that: The diameter of the support seat (1) is larger than the outer diameter of the large end of the retaining frame (4).

5. The auxiliary tool for assembling inner components of a tapered roller bearing according to claim 1, characterized in that: The diameter of the retainer locating ring (2) is 0.02-0.05 mm smaller than the inner diameter of the small end of the retainer (4).

6. The auxiliary tool for assembling inner components of a tapered roller bearing according to claim 1, characterized in that: The height of the retainer locating ring (2) is 0.3-0.5 mm higher than the distance from the small end face of the retainer (4) to the bottom of the pocket hole.

7. The auxiliary tool for assembling inner components of a tapered roller bearing according to claim 1, characterized in that: The diameter of the arc-shaped groove (5) is 0.01 to 0.03 mm larger than the diameter of the large end of the tapered roller (6).

8. The auxiliary tool for assembling inner components of a tapered roller bearing according to claim 1, characterized in that: The diameter of the truncated cone-shaped tapered roller positioning member (3) is larger than the outer diameter of the small end of the inner ring (7).

9. The auxiliary tool for assembling inner components of a tapered roller bearing according to claim 1, characterized in that: The support seat (1), the cage positioning ring (2) and the tapered roller positioning member (3) are an integrated structure.

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