CN214146320U

CN214146320U - Rolling bearing dismantling mechanism

Info

Publication number: CN214146320U
Application number: CN202023026208.0U
Authority: CN
Inventors: 玉国杏
Original assignee: Suzhou Wu Gou Technology Co ltd
Current assignee: Suzhou Wu Gou Technology Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-09-07
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a antifriction bearing demolishs mechanism, include: the supporting seat is provided with a vertical through hole for a shaft provided with a rolling bearing to penetrate through, the supporting seat is provided with a plurality of arm claws which are uniformly arranged in the vertical through hole at intervals, the top of each arm claw is connected to the top of the supporting seat through a connecting structure, bottom hooks of each arm claw downwards extend into the vertical through hole, and the bottom hooks of each arm claw can hook an inner ring raceway of the rolling bearing arranged on the shaft; the bottom of the supporting seat is provided with a lifting structure which can enable the supporting seat to ascend or descend. The rolling bearing dismounting mechanism with the structure has the advantages of simple structure, convenience in use and low cost, and can smoothly dismount the rolling bearing under the working condition that no impact and vibration are generated on the shaft.

Description

Rolling bearing dismantling mechanism

Technical Field

The utility model relates to the bearing demolishs technical field, especially relates to a antifriction bearing demolishs mechanism.

Background

Rolling bearings generally consist of an inner ring, an outer ring, rolling elements and a cage, the inner ring being mounted on the journal of the shaft and fitting tightly, and the outer ring being mounted in the bearing bore of the bearing block or component, usually fitting loosely. And raceways are arranged on the outer circumference of the inner ring and the inner circumference of the outer ring, and when the inner ring and the outer ring rotate relatively, the rolling bodies roll along the raceways of the inner ring and the raceways of the outer ring.

In the use process of the rolling bearing, the phenomenon of rusting and clamping can be inevitably caused by factors such as working environment and the like, so that the rolling bearing is difficult to replace. When the rolling bearing with the phenomenon of rusting and clamping is replaced, the rolling ball and the retainer are usually required to be detached firstly, then the bearing is taken out by using a pulling tool, and the shaft is in the working conditions of impact and vibration in the replacement process. However, in practical application, some shafts cannot bear the working conditions of impact and vibration, so that the rolling bearing dismounting mechanism for smoothly dismounting the rolling bearing under the working condition that the shaft does not generate impact and vibration needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that needs to solve is: the rolling bearing dismounting mechanism is simple in structure, convenient to use and capable of smoothly dismounting the rolling bearing under the working condition that impact and vibration are not generated on the shaft.

In order to solve the above problem, the utility model adopts the following technical scheme: the rolling bearing dismantling mechanism comprises: the supporting seat is provided with a vertical through hole for a shaft provided with a rolling bearing to penetrate through, the supporting seat is provided with a plurality of arm claws which are sequentially and uniformly distributed at intervals and surround the vertical through hole, the top of each arm claw is connected to the top of the supporting seat through a corresponding connecting structure, a bottom hook of each arm claw extends downwards into the vertical through hole, and the bottom hook of each arm claw can hook an inner ring raceway of the rolling bearing arranged on the shaft; the bottom of the supporting seat is provided with a lifting structure which can enable the supporting seat to ascend or descend.

Further, in the above rolling bearing dismounting mechanism, the connecting structure is: the top of arm claw outwards buckles and forms connecting portion, is provided with the kidney slot that link up from top to bottom on connecting portion, sets up the holding tank that holds connecting portion downwards on the top surface of supporting seat, and vertical through-hole lateral wall is run through to holding tank inner, sets up threaded hole downwards at the tank bottom of holding tank, and connecting bolt passes behind the kidney slot in the screw hole of screw in to with the connecting portion fixed connection of arm claw in the supporting seat top.

Further, in the above rolling bearing dismounting mechanism, the bottom of the accommodating groove is an inclined surface gradually inclined downwards from the inner end of the accommodating groove to the outer end of the accommodating groove.

Further, aforementioned mechanism is demolishd to antifriction bearing, wherein, the supporting seat by last backup pad, bottom suspension fagging and a plurality of joint support constitute in the vertical support pole between last backup pad and the bottom suspension fagging, set up the first vertical through-hole that runs through from top to bottom in last backup pad, set up the vertical through-hole of second that runs through from top to bottom in the bottom suspension fagging, first vertical through-hole and the vertical through-hole of second constitute the vertical through-hole that supplies to install antifriction bearing's axle to penetrate on the supporting seat, each vertical support pole is evenly spaced distribution in proper order and encircles and support around vertical through-hole.

Further, in the above rolling bearing dismantling mechanism, the lifting structure is: a plurality of vertical threaded through holes are formed in the lower supporting plate, the vertical threaded through holes are sequentially distributed at equal intervals and surround the periphery of the second vertical through hole, and adjusting bolts are respectively screwed in the vertical threaded through holes.

The utility model has the advantages that: the rolling bearing dismounting mechanism with the structure has the advantages of simple structure, convenience in use and low cost, and can smoothly dismount the rolling bearing under the working condition that no impact and vibration are generated on the shaft.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a bearing dismantling mechanism according to the present invention.

Fig. 2 is a schematic plan view of the structure in the direction B in fig. 1.

Fig. 3 is a schematic view of the structure in the sectional direction of a-a in fig. 2.

Fig. 4 is a schematic view of the structure in the top view of fig. 2.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and preferred embodiments.

The rolling bearing 3 is generally composed of an inner ring 31, which is fitted tightly on the journal of the shaft 1, an outer ring 32, which is fitted loosely in the bearing bore of the bearing block or part 2, rolling elements 33 and a cage. Raceways are provided on both the outer circumference of the inner ring 31 and the inner circumference of the outer ring 32, and rolling bodies 33 roll along the raceways of the inner ring and the outer ring when the inner ring 31 and the outer ring 32 rotate relatively. The main disassembly work in removing the rolling bearing is how to smoothly separate the inner ring 31 from the shaft 1.

As shown in fig. 1, 2, 3 and 4, the rolling bearing removing mechanism according to the present embodiment includes: the supporting seat, set up the vertical through-hole that the axle 1 that supplies to install antifriction bearing 3 penetrated on the supporting seat, be provided with a plurality of even interval distribution in proper order and encircle arm claw 5 in vertical through-hole on the supporting seat, the top of each arm claw 5 is connected in the supporting seat top through the connection structure who corresponds separately, the bottom crotch 53 of each arm claw 5 stretches into in the vertical through-hole downwards, and the bottom crotch 53 of each arm claw 5 can catch on the inner circle raceway of the antifriction bearing 3 of dress on axle 1.

As shown in fig. 1 and 3, the connection structure described in this embodiment is: the top of arm claw 5 outwards buckles and forms connecting portion 51, is provided with the kidney slot 52 that link up from top to bottom on connecting portion 51, has seted up the holding tank 411 that holds connecting portion 51 downwards on the top surface of supporting seat, and the holding tank inner runs through vertical through-hole lateral wall, sets the tank bottom of holding tank 411 to the inclined plane of holding tank outer end downward sloping gradually by holding tank inner in this embodiment. A threaded hole is formed downwards at the bottom of the accommodating groove 411, and the connecting bolt 6 is screwed into the threaded hole after passing through the waist-shaped groove 52, so that the connecting part 51 of the arm claw 5 is fixedly connected to the top of the supporting seat. During the use process, the bottom hook 53 of each arm claw 5 can be adjusted to extend into the inner ring raceway of the rolling bearing 3 by adjusting the kidney-shaped groove 52, so that the bottom hook 53 of each arm claw 5 can be hooked on the inner ring raceway of the rolling bearing 3 more firmly.

As shown in fig. 1, 2 and 3, the supporting seat in this example is composed of an upper supporting plate 441, a lower supporting plate 42 and a plurality of vertical supporting rods 43 connected and supported between the upper supporting plate 41 and the lower supporting plate 42, a first vertical through hole 412 penetrating up and down is formed in the upper supporting plate 41, a second vertical through hole 421 penetrating up and down is formed in the lower supporting plate 42, the first vertical through hole 412 and the second vertical through hole 421 constitute vertical through holes for the shaft 1 provided with the rolling bearing 3 to penetrate through, and the vertical supporting rods 43 are sequentially distributed at equal intervals and are supported around the vertical through holes.

The bottom of the supporting seat is provided with a lifting structure which can enable the supporting seat to ascend or descend. As shown in fig. 1, 2 and 3, the lifting structure in this embodiment is: a plurality of vertical threaded through holes 422 are formed in the lower supporting plate 42, the vertical threaded through holes 422 are sequentially and uniformly distributed at intervals and surround the periphery of the second vertical through hole, and adjusting bolts 7 are respectively screwed in the vertical threaded through holes 422.

The operating principle of the rolling bearing dismounting mechanism with the structure is as follows: the shaft 1 provided with the rolling bearing 3 penetrates into the vertical through hole, the bottoms of the adjusting bolts 7 on the rolling bearing dismantling mechanism are abutted to the bearing seat or the part 2, then the bottom hooks 53 of the arm claws 5 hook the inner ring raceway of the rolling bearing 3 arranged on the shaft 1 and fix the positions of the arm claws 5, and then the adjusting bolts 7 are synchronously rotated to enable the adjusting bolts 7 to be downwards screwed into the corresponding vertical thread through holes 422, at the moment, the supporting seat is upwards lifted to drive the bottom hooks 53 of the arm claws 5 to upwards lift, so that the inner ring of the rolling bearing 3 is stably upwards pulled out of the shaft 1, and the dismantling work of the rolling bearing 3 is completed.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.

Claims

1. A rolling bearing dismantling mechanism is characterized in that: the method comprises the following steps: the supporting seat is provided with a vertical through hole for a shaft provided with a rolling bearing to penetrate through, the supporting seat is provided with a plurality of arm claws which are sequentially and uniformly distributed at intervals and surround the vertical through hole, the top of each arm claw is connected to the top of the supporting seat through a corresponding connecting structure, a bottom hook of each arm claw extends downwards into the vertical through hole, and the bottom hook of each arm claw can hook an inner ring raceway of the rolling bearing arranged on the shaft; the bottom of the supporting seat is provided with a lifting structure which can enable the supporting seat to ascend or descend.

2. A rolling bearing demolition mechanism according to claim 1, wherein: the connecting structure is as follows: the top of arm claw outwards buckles and forms connecting portion, is provided with the kidney slot that link up from top to bottom on connecting portion, sets up the holding tank that holds connecting portion downwards on the top surface of supporting seat, and vertical through-hole lateral wall is run through to holding tank inner, sets up threaded hole downwards at the tank bottom of holding tank, and connecting bolt passes behind the kidney slot in the screw hole of screw in to with the connecting portion fixed connection of arm claw in the supporting seat top.

3. A rolling bearing demolition mechanism according to claim 2, wherein: the tank bottom of holding tank is by holding tank inner end to the inclined plane of holding tank outer end downward sloping gradually.

4. A rolling bearing demolition mechanism according to claim 1, 2 or 3, wherein: the supporting seat comprises an upper supporting plate, a lower supporting plate and a plurality of vertical supporting rods connected and supported between the upper supporting plate and the lower supporting plate, a first vertical through hole penetrating through the upper supporting plate and the lower supporting plate is formed in the upper supporting plate, a second vertical through hole penetrating through the lower supporting plate and the upper supporting plate are formed in the lower supporting plate, the first vertical through hole and the second vertical through hole form a vertical through hole for a shaft provided with a rolling bearing to penetrate through, and the vertical supporting rods are sequentially distributed at equal intervals and are supported around the vertical through holes in a surrounding mode.

5. A rolling bearing demolition mechanism according to claim 1, 2 or 3, wherein: the lifting structure is as follows: a plurality of vertical threaded through holes are formed in the lower supporting plate, the vertical threaded through holes are sequentially distributed at equal intervals and surround the periphery of the second vertical through hole, and adjusting bolts are respectively screwed in the vertical threaded through holes.