Tapered roller bearing auxiliary assembling device

Abstract

The utility model relates to the technical field of tapered roller bearing assembly, in particular to a tapered roller bearing auxiliary assembly device which comprises a cylindrical hollow die holder, and a plurality of limiting rods which slide and penetrate in the radial direction are evenly and annularly arranged on the upper section of an inner cavity of the hollow die holder at intervals in the circumferential direction of the hollow die holder. The inner end of the limiting rod is provided with an axial supporting part for axially supporting the retainer and a radial abutting part for abutting against the retainer in the radial direction; the periphery of the hollow die holder is in threaded connection with an adjusting sleeve, and the upper section of an inner cavity of the adjusting sleeve is provided with a conical cavity which can abut against and be matched with the outer ends of all the limiting rods. A sliding adsorption structure is arranged between the outer end part of the limiting rod and the conical cavity; the adjusting sleeve can ascend or descend by rotating the adjusting sleeve, so that the limiting rods move inwards or outwards under the action of the sliding adsorption structure, the function of adjusting the positions of all the limiting rods at the same time is achieved, and it is guaranteed that all the limiting rods are in the rotational symmetry state relative to the central axis of the hollow die holder all the time.

Description

Technical Field

[0001] This utility model relates to the field of tapered roller bearing assembly technology, and in particular to an auxiliary assembly device for tapered roller bearings. Background Technology

[0002] Tapered roller bearings are separable bearings, meaning that the tapered inner ring assembly, consisting of an inner ring with rollers and a cage, can be installed separately from the tapered outer ring. Tapered roller bearings primarily bear combined radial and axial loads, with the radial load being dominant. Their load-carrying capacity depends on the raceway angle of the outer ring; the larger the angle, the greater the load-carrying capacity.

[0003] For the assembly of small batches of non-standard tapered roller bearings, the traditional method is to use manual assembly. Although this method can assemble non-standard tapered roller bearings, it is inefficient.

[0004] Chinese patent CN217915064U discloses an assembly mold for producing tapered roller bearings. Specifically, it discloses a mold base with guide grooves and mounting grooves running from bottom to top. Adjusting screws are screwed onto both sides of the mold base. The inner ends of the adjusting screws extend into the mounting grooves and are movably fitted with clamping plates via bearings. Support plates are fixedly fitted to the bottom ends of the clamping plates. A retainer is engaged between the two sets of clamping plates. A lifting extrusion cone is located above the mold base. In use, the retainer is limited and fixed by the clamping plates and support plates. Then, the tapered rollers are placed into the retainer in an orderly manner. Finally, the extrusion cone is lowered to complete the extrusion assembly of the tapered rollers and the retainer. However, this device has the following drawbacks: 1. Since the positions of the clamping plates and support plates on both sides are adjusted by corresponding adjusting screws, it is difficult to ensure that the adjusted clamping plates are symmetrical with respect to the central axis of the mold base. This results in the retainer being coaxial with the extrusion cone, affecting the assembly.

[0005] To address this, we designed an auxiliary assembly device for tapered roller bearings. Utility Model Content

[0006] To overcome the shortcomings of the prior art, this utility model discloses an auxiliary assembly device for tapered roller bearings.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] An auxiliary assembly device for tapered roller bearings includes a cylindrical hollow mold base. The upper section of the inner cavity of the hollow mold base is provided with a plurality of radially sliding limiting rods evenly spaced along its circumference. The inner ends of the limiting rods have axial support portions for axially supporting retainers and radial contact portions for radially contacting retainers. An adjusting sleeve is threadedly connected to the outer periphery of the hollow mold base, and the upper section of the inner cavity of the adjusting sleeve has a tapered cavity capable of engaging with the outer ends of all the limiting rods.

[0009] The outer end of the limiting rod has a sliding adsorption structure with respect to the conical cavity.

[0010] Preferably, the sliding adsorption structure is a magnetic block disposed at the outer end of the limiting rod and / or a conical magnetic sleeve fixedly embedded in the inner wall of the conical cavity.

[0011] Preferably, the lower end of the inner cavity of the adjusting sleeve is threaded into the hollow mold base.

[0012] Preferably, the adjusting sleeve body is provided with an auxiliary structure to assist in its rotation.

[0013] Preferably, the auxiliary structure is a friction layer evenly distributed on the body of the adjusting sleeve or a plurality of rotating handles spaced apart along the circumference of the adjusting sleeve.

[0014] Preferably, it further includes a base plate for mounting the hollow mold base, wherein one end of the base plate is provided with an upwardly extending extension.

[0015] Preferably, the extension is slidably connected to a crossbar whose outer end extends to the top of the hollow mold base, and a replaceable conical extrusion head is provided below the outer end of the crossbar.

[0016] Preferably, a support spring is provided below the inner end of the crossbar for elastic support.

[0017] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0018] 1. The setting of the adjusting sleeve and the sliding adsorption structure allows the adjusting sleeve to rise or fall by rotating it, thereby causing the limiting rod to move inward or outward under the action of the sliding adsorption structure. This achieves the function of simultaneously adjusting the position of all limiting rods and ensuring that all limiting rods are always in a state of rotational symmetry relative to the central axis of the hollow mold base. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first structure of this utility model;

[0020] Figure 2 for Figure 1 The main view;

[0021] Figure 3 for Figure 1 AA section view;

[0022] Figure 4 This is a schematic diagram of the second structure of this utility model.

[0023] In the figure: 1. Hollow mold base; 2. Limiting rod; 201. Axial support part; 202. Radial contact part; 3. Adjusting sleeve; 301. Conical cavity; 4. Magnetic block; 5. Conical magnetic sleeve; 6. Friction layer; 7. Rotating handle; 8. Base plate; 801. Extension part; 9. Crossbar; 10. Replaceable conical extrusion head; 11. Support spring. Detailed Implementation

[0024] The present invention will be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if terms such as "upper", "lower", "front", "rear", "left", "right" indicate orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention. It should be understood that if terms such as "end", "side", "end portion", "side part", "lateral", "longitudinal", etc. indicate orientation or positional relationship, they are only corresponding to the length and width of the corresponding component. That is, "end" indicates the head and tail area in the length direction of the corresponding component, and "side part" indicates the head and tail area in the width direction of the corresponding component. They are used for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation.

[0025] Combined with appendix Figure 1-4 An auxiliary assembly device for tapered roller bearings includes a cylindrical hollow mold base 1. Multiple radially sliding limiting rods 2 are evenly spaced around the upper section of the inner cavity of the hollow mold base 1. The inner ends of the limiting rods 2 have axial support portions 201 for axial support cages and radial contact portions 202 for radial contact cages. Specifically, the axial support portions 201 are located below and inside the radial contact portions 202. An adjusting sleeve 3 is threadedly connected to the outer periphery of the hollow mold base 1. The upper section of the inner cavity of the adjusting sleeve 3 has a tapered cavity 301 capable of engaging with the outer ends of all the limiting rods 2.

[0026] The outer end of the limiting rod 2 has a sliding adsorption structure between it and the conical cavity 301.

[0027] Adjust the lower end of the inner cavity of sleeve 3 to be threaded into the hollow mold base 1 as needed.

[0028] In one possible implementation, the sliding adsorption structure is a magnetic block 4 located at the outer end of the limiting rod 2.

[0029] In one possible implementation, the sliding adsorption structure is a conical magnetic sleeve 5 that is fixedly embedded in the inner wall of the conical cavity 301.

[0030] Combined with appendix Figure 3 Depending on the needs, the magnetic block 4 and the conical magnetic sleeve 5 in the two possible implementations described above may also coexist.

[0031] In specific implementation: it also includes a base plate 8 for mounting the hollow mold base 1, one end of the base plate 8 is provided with an upwardly extending extension 801; the extension 801 is slidably connected to a crossbar 9 whose outer end extends to directly above the hollow mold base 1, and a replaceable conical extrusion head 10 is provided below the outer end of the crossbar 9. The replaceable conical extrusion head 10 can be understood as being detachably connected to the outer end of the crossbar 9.

[0032] Furthermore, to facilitate the raising and lowering of the crossbar 9; combined with the attached... Figure 1-3 The outer end of the crossbar 9 is equipped with a handle, or combined with an attachment Figure 4 The extension 801 is equipped with a drive device for raising and lowering the crossbar 9, such as a lead screw motor or a cylinder. Since the lead screw motor and cylinder are existing conventional equipment, their structure and assembly method will not be described in detail here.

[0033] Combined with appendix Figure 1-3 When the outer end of the crossbar 9 is provided with a handle, a support spring 11 is provided below the inner end of the crossbar 9 for elastic support; that is, the crossbar 9 is supported by the support spring 11, so that the crossbar 9 drives the replaceable conical extrusion head 10 to rise to a position higher than the hollow mold base 1, providing operating space for placing the retainer and roller.

[0034] In use, first adjust the approximate position of the limiting rod 2 according to the size of the cage to ensure that the axial support part 201 can stably support the cage. Then, adjust the position of the limiting rod 2 again so that the radial contact part 202 contacts the outside of the cage. Then, place the roller. After the roller is placed, the crossbar 9 drives the replaceable conical extrusion head 10 to descend, completing the assembly of the roller and the cage.

[0035] The working principle of adjusting the position of the limiting rod 2 is as follows: rotating the adjusting sleeve 3 causes the adjusting sleeve 3 to rise or fall. When the adjusting sleeve 3 rises, the inner wall of the conical cavity 301 presses the limiting rod 2 inward, and the limiting rod 2 moves inward. When the adjusting sleeve 3 falls, the position of the inner wall of the conical cavity 301 corresponding to the limiting rod 2 moves outward relative to the limiting rod 2. At this time, the limiting rod 2 moves outward under the action of the sliding adsorption structure.

[0036] As needed, to facilitate the rotation of the adjusting sleeve 3, the adjusting sleeve 3 body is provided with an auxiliary structure to assist in its rotation.

[0037] In one possible implementation, combined with the appendix Figure 4The auxiliary structure is a friction layer 6 evenly distributed on the body of the adjusting sleeve 3.

[0038] In one possible implementation, combined with the appendix Figure 1-3 The auxiliary structure consists of multiple rotating handles 7 spaced apart along the circumference of the adjusting sleeve 3.

[0039] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. An auxiliary assembly device for tapered roller bearings, characterized in that: The device includes a cylindrical hollow mold base (1), wherein the upper section of the inner cavity of the hollow mold base (1) is provided with a plurality of radially sliding through limiting rods (2) evenly spaced along its circumference, and the inner end of the limiting rods (2) has an axial support part (201) for an axial support retainer and a radial abutment part (202) for a radial abutment retainer; the hollow mold base (1) is threadedly connected to an adjusting sleeve (3), and the upper section of the inner cavity of the adjusting sleeve (3) has a conical cavity (301) that can abut against the outer ends of all the limiting rods (2); The outer end of the limiting rod (2) has a sliding adsorption structure with respect to the conical cavity (301).

2. The tapered roller bearing auxiliary assembly device according to claim 1, characterized in that: The sliding adsorption structure is a magnetic block (4) located at the outer end of the limiting rod (2) and / or a conical magnetic sleeve (5) fixedly embedded in the inner wall of the conical cavity (301).

3. The tapered roller bearing auxiliary assembly device according to claim 1, characterized in that: The lower end of the inner cavity of the adjusting sleeve (3) is threaded into the hollow mold base (1).

4. The tapered roller bearing auxiliary assembly device according to claim 1, characterized in that: The adjusting sleeve (3) has an auxiliary structure for assisting in its rotation.

5. The tapered roller bearing auxiliary assembly device according to claim 4, characterized in that: The auxiliary structure is a friction layer (6) evenly distributed on the body of the adjusting sleeve (3) or a plurality of rotating handles (7) spaced apart along the circumference of the body of the adjusting sleeve (3).

6. The tapered roller bearing auxiliary assembly device according to claim 1, characterized in that: It also includes a base plate (8) for mounting the hollow mold base (1), and one end of the base plate (8) is provided with an upwardly extending extension (801).

7. The tapered roller bearing auxiliary assembly device according to claim 6, characterized in that: The extension (801) is slidably connected to a crossbar (9) whose outer end extends to the top of the hollow mold base (1), and a replaceable conical extrusion head (10) is provided below the outer end of the crossbar (9).

8. The tapered roller bearing auxiliary assembly device according to claim 7, characterized in that: A support spring (11) for elastic support is provided below the inner end of the crossbar (9).

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