CN218817686U

CN218817686U - A mould for tapered roller bearing equipment

Info

Publication number: CN218817686U
Application number: CN202223404158.4U
Authority: CN
Inventors: 江勇伟; 徐春干; 徐春贤; 方俊
Original assignee: Jm Bearing Group Co ltd
Current assignee: Jm Bearing Group Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-04-07
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a mould for tapered roller bearing assembly, the mould includes cover half, movable mould, bottom plate, compression spring, the movable mould is overlapped in the cover half, the bottom plate is installed in the bottom of cover half, a guide post of bottom center rigid coupling of movable mould, the center of bottom plate is equipped with a guiding hole, the guide post is overlapped in the guiding hole, the compression spring is overlapped on the guide post, and is pressed from both sides between movable mould and bottom plate; the upper part of the outer side of the movable mould is provided with N roller guide grooves, and the lower part of the outer side of the movable mould is provided with a circle of first support steps; the top of the inner side of the fixed die is provided with N roller support grooves, and the upper part of the inner side of the fixed die is provided with a circle of second support steps. The beneficial effects are that: the mold realizes the mold combination of two procedures of placing the tapered roller and pressing the inner ring and the retainer together, avoids the phenomenon that the tapered roller is separated from the roller limiting hole in the transfer process of the retainer placed with the tapered roller, and avoids the disorder of the assembly rhythm of the tapered roller bearing.

Description

A mould for tapered roller bearing equipment

Technical Field

The utility model relates to a tapered roller bearing equipment field especially relates to a mould for tapered roller bearing equipment.

Background

The tapered roller bearing belongs to a separated bearing and is assembled by an inner ring, an outer ring, a retainer and a plurality of tapered rollers. The tapered roller bearing mainly bears combined radial and axial loads which are mainly radial. The bearing load capacity depends on the raceway angle of the outer ring, with the greater the angle the greater the load capacity.

The assembly process of the tapered roller bearing comprises the following steps: the tapered rollers are placed in the roller limiting holes of the retainer one by one, then the inner ring and the retainer are pressed together, and finally the inner ring, the retainer and the tapered rollers are placed into the outer ring together. At present, the placing of the tapered rollers and the pressing of the inner ring and the retainer are carried out by adopting two mutually independent dies during the assembling, two processes need to be separately carried out during the assembling, the retainer placed with the tapered rollers needs to be transferred from one die to the other die, the situation that the tapered rollers are separated from the retainer is easy to occur during the process, the separated tapered rollers are required to be placed in roller limiting holes on the retainer again, and the assembling rhythm is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above problem that prior art exists, provide a mould for tapered roller bearing equipment.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

a mould for tapered roller bearing equipment which characterized in that: the die comprises an annular fixed die, a cylindrical movable die, a circular bottom plate and a compression spring, wherein the movable die is sleeved in the fixed die, the bottom plate is installed at the bottom end of the fixed die, the center of the bottom end of the movable die is fixedly connected with a guide post coaxial with the movable die, the center of the bottom plate is provided with a guide hole coaxial with the bottom plate, the guide post is sleeved in the guide hole, and the compression spring is sleeved on the guide post and clamped between the movable die and the bottom plate; the upper part of the outer side of the movable mold is provided with N roller guide grooves which are distributed according to an annular array, and the lower part of the outer side of the movable mold is provided with a circle of first support steps for supporting the retainer; the top of the inner side of the fixed die is provided with N roller support grooves which are distributed according to an annular array, and the upper part of the inner side of the fixed die is provided with a circle of second support steps for supporting the retainer.

The bottom end of the bottom plate is fixedly connected with a circular support ring coaxial with the bottom plate.

Furthermore, the bottom end of the guide post is fixedly connected with a stud coaxial with the guide post, and the stud is in threaded connection with a limit nut.

The utility model has the advantages that: arranging a roller guide groove and a first supporting step on the movable mold, placing the retainer on the first supporting step, and then placing the tapered rollers into roller limiting holes on the retainer along the roller guide groove one by one; arranging a roller bracket and a second supporting step on the fixed die, placing the inner ring on the movable die, pressing the inner ring downwards by the punching machine to drive the movable die to descend until the retainer is supported by the second supporting step and the tapered roller is supported by the roller bracket, and pressing the inner ring and the retainer by the punching machine continuously; the die is combined by matching the fixed die, the movable die, the bottom plate, the compression spring, the guide post and the guide hole to realize two processes of placing the tapered roller and pressing the inner ring and the retainer together, so that the retainer placed with the tapered roller is prevented from being separated from the roller limiting hole in the transfer process, and the assembly rhythm of the tapered roller bearing is prevented from being disturbed.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural view of the mold in the process state of placing the tapered rollers in the roller-limiting holes of the retainer;

FIG. 2 is a schematic structural view of the mold of the present invention in a state of pressing the inner ring and the retainer;

FIG. 3 is an exploded view of the mold of the present invention;

the reference numbers in the figures illustrate: the device comprises a fixed die 1, a movable die 2, a bottom plate 3, a compression spring 4, a guide post 5, a guide hole 6, a roller guide groove 7, a first support step 8, a roller bracket 9, a second support step 10, a support ring 11, a stud 12 and a limit nut 13.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 3, the mold for assembling the tapered roller bearing comprises a circular fixed mold 1, a cylindrical movable mold 2, a circular bottom plate 3 and a compression spring 4.

The movable mould 2 is sleeved in the fixed mould 1, the bottom plate 3 is installed at the bottom end of the fixed mould 1, a guide post 5 coaxial with the movable mould 2 is fixedly connected to the center of the bottom end of the movable mould 2, a guide hole 6 coaxial with the bottom plate 3 is formed in the center of the bottom plate 3, the cross sections of the guide post 5 and the guide hole 6 are square, the guide post 5 is sleeved in the guide hole 6, and the compression spring 4 is sleeved on the guide post 5 and clamped between the movable mould 2 and the bottom plate 3.

The bottom end of the guide post 5 is fixedly connected with a stud 12 which is coaxial with the guide post 5, the stud 12 is screwed with a limit nut 13, and the limit nut 13 prevents the guide post 5 from jumping and separating from the guide hole 6 when the movable die loses the downward pressure applied to the movable die by the punch.

Twenty roller guide grooves 7 arranged according to an annular array are formed in the upper part of the outer side of the movable mold 2, and the groove walls of the roller guide grooves 7 are cylindrical surfaces; the top of the inner side of the fixed die 1 is provided with N roller supporting grooves 9 which are distributed according to an annular array, the groove walls of the roller supporting grooves 9 are conical surfaces matched with the outer surfaces of the tapered rollers, and the included angle between the central shaft of the roller supporting grooves 9 and the central shaft of the fixed die 1 is equal to the inclined angle of the tapered rollers of the tapered roller bearing to be assembled.

The lower part of the outer side of the movable mold 2 is provided with a circle of first supporting steps 8 for supporting the retainer, the upper part of the inner side of the fixed mold 1 is provided with a circle of second supporting steps 10 for supporting the retainer, and the outer diameter of the first supporting steps 8 is 10-100 mu m smaller than the inner diameter of the second supporting steps 10, so that the movable mold can smoothly move up and down in the fixed mold.

The bottom of bottom plate 3 is fixedly connected with the annular support ring 11 coaxial with bottom plate 3, when the top of stop nut 13 is abutted against the bottom of bottom plate, the top of first support step 8 is parallel and level with the top of cover half 1, and the difference in height between the bottom of stud 12 and support ring 11 is greater than two times of the height of movable mould 2, so that when the movable mould is pressed down, the bottom of the stud is in a suspended state in the support ring.

The process of placing the tapered roller and pressing the inner ring and the retainer in the assembly process of the tapered roller bearing comprises the following steps:

arranging a roller guide groove and a first supporting step on the movable mold, placing the retainer on the first supporting step, and then placing the tapered rollers into roller limiting holes on the retainer along the roller guide groove one by one; and arranging a roller bracket and a second supporting step on the fixed die, placing the inner ring on the movable die, pressing the inner ring downwards by the punching machine to drive the movable die to descend until the retainer is supported by the second supporting step and the tapered roller is supported by the roller bracket, and pressing the inner ring and the retainer by the punching machine continuously.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A mould for tapered roller bearing equipment which characterized in that: the die comprises an annular fixed die, a cylindrical movable die, a circular bottom plate and a compression spring, wherein the movable die is sleeved in the fixed die, the bottom plate is installed at the bottom end of the fixed die, the center of the bottom end of the movable die is fixedly connected with a guide post coaxial with the movable die, the center of the bottom plate is provided with a guide hole coaxial with the bottom plate, the guide post is sleeved in the guide hole, and the compression spring is sleeved on the guide post and clamped between the movable die and the bottom plate; the upper part of the outer side of the movable mold is provided with N roller guide grooves which are distributed according to an annular array, and the lower part of the outer side of the movable mold is provided with a circle of first support steps for supporting the retainer; the top of the inner side of the fixed die is provided with N roller support grooves which are arranged according to an annular array, and the upper part of the inner side of the fixed die is provided with a circle of second support steps for supporting the retainer.

2. The mold of claim 1, wherein: and the bottom end of the bottom plate is fixedly connected with a circular support ring coaxial with the bottom plate.

3. The mold of claim 2, wherein: the bottom of guide post rigid coupling one with the coaxial double-screw bolt of guide post, a stop nut of spiro union on the double-screw bolt.

4. The mold of claim 3, wherein: when the top end of the limit nut is abutted to the bottom end of the bottom plate, the top end of the first supporting step is flush with the top end of the fixed die, and the height difference between the bottom end of the stud and the supporting ring is larger than the double height of the movable die.

5. The mold of claim 1, wherein: the groove wall of the roller guide groove is a cylindrical surface, and the groove wall of the roller bracket is a conical surface matched with the outer surface of the tapered roller.

6. The mold of claim 1, wherein: and the included angle between the roller bracket central shaft and the fixed die central shaft is equal to the inclined angle of the tapered roller bearing to be assembled.

7. The mold of claim 1, wherein: the cross sections of the guide post and the guide hole are square.

8. The mold of claim 1, wherein: the outer diameter of the first supporting step is 10-100 mu m smaller than the inner diameter of the second supporting step.