CN210025151U

CN210025151U - Bearing dismounting tool

Info

Publication number: CN210025151U
Application number: CN201920633496.4U
Authority: CN
Inventors: 吴志林
Original assignee: Shijiazhuang Yangxiang Feed Co Ltd
Current assignee: Shijiazhuang Yangxiang Feed Co Ltd
Priority date: 2019-05-06
Filing date: 2019-05-06
Publication date: 2020-02-07
Anticipated expiration: 2029-05-06

Abstract

The utility model discloses a bearing disassembling tool, which comprises a base, a clamping jaw, a threaded rod, an upper heightening nut, a lower heightening nut, a fixed disc and a hydraulic motor, the center of the fixed disk is provided with a mounting hole, the hydraulic motor is arranged in the mounting hole, the fixed disk is provided with a plurality of through holes which are uniformly distributed around the mounting hole at equal angles, each through hole is penetrated with one threaded rod, an upper heightening nut is arranged on the threaded rod and above the fixed disk, a lower heightening nut is arranged on the threaded rod and below the fixed disk, the lower end of the threaded rod is fixed on the base, the base is circular, the center of the base is provided with a dismounting hole, the dismounting hole is vertically opposite to the mounting hole, the clamping jaws are mounted on the base, and the clamping jaws surround the dismounting hole and are uniformly distributed at equal angles. The defect that the bearing is damaged in the bearing dismounting process can be overcome.

Description

Bearing dismounting tool

Technical Field

The utility model relates to a extracting tool technical field especially relates to a bearing extracting tool.

Background

In the process of disassembling the front end bearing of the main shaft, the prior art mainly uses a tool (e.g., a hammer) to strike the two opposite sides of the space ring so as to make the bearing move slowly to take out the bearing. When the opposite sides of the space ring are knocked by using a tool, the outer ring of the bearing is stressed unevenly, knocking traces can be generated on the matching surface of the knocked space ring, and meanwhile, the inner surface of the bearing seat of the front end cover assembled with the bearing is easily scratched by the disassembling method.

The drawback that above-mentioned technical scheme exists is that the bearing dismantles the process and can cause the damage to the bearing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the utility model provides a bearing extracting tool to solve the drawback that the bearing dismantlement process caused the damage to the bearing.

In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a bearing extracting tool, includes base, jack catch, threaded rod, raise the nut, lower height nut, fixed disk and hydraulic motor, the fixed disk center is equipped with the mounting hole, hydraulic motor install in mounting hole department, be equipped with a plurality of centers on the fixed disk angle evenly distributed's such as mounting hole through-hole, each wear to be equipped with one in the through-hole the threaded rod, on the threaded rod in the fixed disk upside is equipped with the nut that raises, on the threaded rod in the fixed disk downside is equipped with height-adjusting nut, the threaded rod lower extreme is fixed in on the base, the base center is equipped with the dismantlement hole that is used for supplying the bearing to pass, the dismantlement hole with the mounting hole is relative from top to bottom, install on the base the jack catch, a plurality of the jack catch centers on angle evenly distributed such as dismantle.

As an improved mode, the base is circular, a plurality of clamping jaws are arranged on the base correspondingly, each adjusting hole is long-strip-shaped and extends along the radial direction of the base, the clamping jaws are installed in the adjusting holes through threaded fasteners, and the clamping jaws can move along the length direction of the adjusting holes under stress when the threaded fasteners are in a loosening state so as to clamp or release the bearing.

As a refinement, 3 threaded rods and 3 claws are provided in each case.

As an improved mode, the clamping jaw is provided with a plurality of mounting through holes, the threaded fastener penetrates through one of the mounting through holes and the adjusting hole to fix the clamping jaw on the base.

As a modified mode, one end of the inner side of the clamping jaw is wedge-shaped.

As an improved mode, the hydraulic motor comprises a driving body and a driving shaft, the driving body is fixed on the fixed disc, and the driving shaft penetrates through the mounting hole.

The technical effect obtained by adopting the technical scheme is as follows:

when the bearing is disassembled, the threaded fastener on the clamping jaw is fastened by a tool after the size of the stressed clamping jaw is adjusted according to the size of the bearing, the bearing to be disassembled is fixed on the base, and the bearing can be pulled out by operating a hydraulic tool after the position of the hydraulic motor is adjusted to reach the required height according to the length of the shaft. The tool can also be used as a pressure tool, and workpiece equipment which can be shot out by an iron hammer can adjust the jaw of the tool from the bottom position to the upper position, then fasten the jaw and operate the hydraulic motor to eject the workpiece. The tool is used for disassembling the bearing, so that the bearing can be prevented from being damaged in the disassembling process.

Because be equipped with the regulation hole on the base, the jack catch pass through threaded fastener install in the regulation hole, the jack catch slides along the regulation hole and can realize pressing from both sides tightly not unidimensional bearing.

Because the jaw is provided with a plurality of mounting through holes, the threaded fastener penetrates through the mounting through holes and the adjusting holes to fix the jaw on the base.

Because the inboard one end of jack catch is the wedge, the jack catch inboard is the wedge and is convenient for press from both sides tight bearing.

Because the regulation hole is the slot hole, the regulation hole is along circular shape the radial setting of base can make the jack catch slide along the regulation hole and adjust the tight size of clamp of jack catch.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the base;

FIG. 3 is a schematic view of the jaw configuration;

1-hydraulic motor, 2-threaded rod, 31-up-adjusting nut, 32-down-adjusting nut, 4-fixing disk, 41-mounting hole, 5-clamping jaw, 51-mounting through hole, 6-fastening piece, 7-base, 71-adjusting hole and 72-dismounting hole.

Detailed Description

As shown in fig. 1 and 2, a bearing detaching tool includes a base 7, a jaw 5, a threaded rod 2, an up-adjustment nut 31, a down-adjustment nut 32, a fixed disk 4 and a hydraulic motor 1, wherein a mounting hole 41 is formed in the center of the fixed disk 4, the hydraulic motor 1 is installed at the mounting hole, a plurality of through holes which are uniformly distributed around the mounting hole 41 at equal angles are formed in the fixed disk 4, and in this embodiment, 3 through holes are formed in the fixed disk 4. Wear to be equipped with a threaded rod 2 in each through-hole, be equipped with the nut 31 of increaseing on threaded rod 2 in 4 upsides of fixed disk, be equipped with down the nut 32 of increaseing in 4 downside of fixed disk on threaded rod 2, on 2 lower extremes of threaded rod were fixed in base 7, base 7 was circularly, and base 7 center is equipped with the disassembly hole 72 that is used for supplying the bearing to pass, and disassembly hole 72 is relative from top to bottom with the mounting hole, installs jack catch 5 on the base 7, and a plurality of jack catches 5 are specifically for around angular uniform distribution such as disassembly hole 72: the base 7 is provided with adjusting holes 71 corresponding to the plurality of clamping jaws 5, the three adjusting holes 71 are uniformly distributed around the dismounting holes 72 at equal angles, each adjusting hole 71 is in a long strip shape and extends along the radial direction of the base 7, the clamping jaws 5 are installed in the adjusting holes 71 through threaded fasteners, and the clamping jaws can move along the length direction of the adjusting holes 71 to clamp or release a bearing under stress when the threaded fasteners are in a loosening state.

In this embodiment, the number of the claws 5 is 3, 3 claws 5 are respectively installed at three adjusting holes 71, each claw 5 is provided with a plurality of mounting through holes 51, each claw 5 is fixed more firmly on the base 7 through a plurality of threaded fasteners, and the threaded fasteners 6 penetrate through the mounting through holes 51 and the adjusting holes 71 to fix the claws 5 on the base 7. The jaws 5 are fixed to the base 7. The clamping jaw 5 slides along the adjusting hole 71 to clamp bearings with different sizes, and the clamping jaw 5 can slide along the adjusting hole 71 to adjust the clamping size of the clamping jaw 5. The inboard one end of jack catch 5 is the wedge, and jack catch 5 inboard is the wedge and is convenient for press from both sides tight bearing.

The use method of the bearing disassembling tool comprises the following steps:

1. the position of the clamping jaw 5 is adjusted according to the size of the bearing, and then the clamping jaw 5 is screwed tightly by a wrench;

2. the position of the hydraulic motor 1 is adjusted to reach the required height through a spanner according to the length of the shaft;

3. the bearing can be pulled out by operating the hydraulic motor.

The tool can also be used as a pressure tool, and some equipment which can be hit by an iron hammer can adjust the claw 5 from the bottom position to the upper position, and then the hydraulic motor 1 is operated to drive the driving shaft to move downwards after the claw 5 is fastened, so that the workpiece can be ejected.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. A bearing disassembling tool is characterized by comprising a base, a clamping jaw, a threaded rod, an upper heightening nut, a lower heightening nut, a fixed disc and a hydraulic motor, the center of the fixed disk is provided with a mounting hole, the hydraulic motor is arranged at the mounting hole, the fixed disk is provided with a plurality of through holes which are uniformly distributed around the mounting hole at equal angles, each through hole is penetrated with one threaded rod, an upper heightening nut is arranged on the threaded rod and above the fixed disk, a lower heightening nut is arranged on the threaded rod and below the fixed disk, the lower end of the threaded rod is fixed on the base, the center of the base is provided with a dismounting hole for the bearing to pass through, the dismounting hole is vertically opposite to the mounting hole, the clamping jaws are mounted on the base, and the clamping jaws surround the dismounting hole and are uniformly distributed at equal angles.

2. The bearing removal tool of claim 1, wherein the base is circular, the base has a plurality of adjustment holes corresponding to the plurality of jaws, each adjustment hole is elongated and extends in a radial direction of the base, the jaws are mounted in the adjustment holes by threaded fasteners and can be forced to move along a length direction of the adjustment holes when the threaded fasteners are in a loosened state to clamp or release the bearing.

3. The bearing removal tool of claim 1, wherein there are 3 of the threaded rod and the pawl, respectively.

4. The bearing removal tool of claim 2, wherein the jaw defines a plurality of mounting holes therethrough, and the threaded fastener extends through one of the mounting holes and the adjustment hole to secure the jaw to the base.

5. The bearing removal tool of claim 1, wherein the pawl has a wedge-shaped inner end.

6. The bearing disassembly tool of claim 2, wherein the hydraulic motor comprises a driving body and a driving shaft, the driving body is fixed on the fixed disc, and the driving shaft penetrates through the mounting hole.