CN217992399U - Bearing puller - Google Patents
Bearing puller Download PDFInfo
- Publication number
- CN217992399U CN217992399U CN202221888032.6U CN202221888032U CN217992399U CN 217992399 U CN217992399 U CN 217992399U CN 202221888032 U CN202221888032 U CN 202221888032U CN 217992399 U CN217992399 U CN 217992399U
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- screw rod
- bearing
- radial
- stop collar
- outer screw
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Abstract
The utility model discloses a bearing draws horse aims at providing one kind and can effectively solve the bearing among the prior art and draw horse, has the bearing to draw horse easy slippage at the process of dismantling the bearing, and influences the bearing of the problem that the bearing was dismantled and draw horse. It comprises an external screw rod; the middle part of the beam is provided with a beam screw hole matched with the outer screw rod, and the outer screw rod is connected with the beam screw hole through threads; the two pulling claws are distributed on two opposite sides of the outer screw rod, and one end of each pulling claw is connected with the cross beam; the axle limit structure, axle limit structure are including fixing the axle stop collar in outer screw rod one end, a plurality of radial screw and the radial locking bolt of setting in radial screw of one-to-one on the lateral wall of axle stop collar, axle stop collar and the coaxial distribution of outer screw rod, each radial screw is around the circumference evenly distributed of axle stop collar, and the interior lateral surface of axle stop collar is run through to radial screw.
Description
Technical Field
The utility model relates to a bearing extracting tool, concretely relates to bearing draws horse.
Background
Bearing pullers are widely used to remove bearings fastened to various shafts, for example, the shaft of a motor. The bearing draws the horse according to its top pushes away the mode, divide into screw bearing draws horse and jack type bearing and draws the horse, wherein, screw bearing draws the horse and generally includes: a screw; the middle part of the cross beam is provided with a cross beam screw hole matched with the screw rod, and the screw rod is connected with the cross beam screw hole through threads; the two pulling claws are distributed on two opposite sides of the screw rod, and one end of each pulling claw is connected with the cross beam. When the screw bearing puller is used at present, two pulling claws hook the outer ring of a bearing on a shaft, and the end part of a screw abuts against the end part of the shaft; then, through rotatory screw rod, drive crossbeam and two draw claw along screw rod axial displacement to pull down the epaxial bearing that fastens, this in-process because the bearing draws the horse to link to each other with axle and bearing butt, draws the horse to slip easily at the in-process of rotatory screw rod, makes screw rod and axle separation, draws claw and bearing separation, has the inconvenient problem of bearing dismantlement operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can effectively solve the bearing among the prior art and draw the horse, there is the bearing to draw the horse to slip easily at the process of dismantling the bearing, and influences the bearing of the problem that the bearing was dismantled and draw the horse.
The technical scheme of the utility model is that:
a bearing puller, comprising:
an outer screw rod;
the middle part of the cross beam is provided with a cross beam screw hole matched with the outer screw rod, and the outer screw rod is connected with the cross beam screw hole through threads;
the two pulling claws are distributed on two opposite sides of the outer screw rod, and one end of each pulling claw is connected with the cross beam;
the axle limit structure, axle limit structure are including fixing the axle stop collar in outer screw rod one end, a plurality of radial screw and the radial locking bolt of setting in radial screw of one-to-one on the lateral wall of axle stop collar, axle stop collar and the coaxial distribution of outer screw rod, each radial screw is around the circumference evenly distributed of axle stop collar, and the interior lateral surface of axle stop collar is run through to radial screw.
The bearing puller of the scheme is specifically used as follows,
firstly, hooking two pulling claws on an outer ring of a bearing on a shaft;
inserting the end part of the shaft into the shaft limiting sleeve, and then locking and fixing the shaft in the shaft limiting sleeve by locking each radial locking bolt;
secondly, by rotating the outer screw (during the rotation of the outer screw, the shaft also rotates along with the outer screw), the beam and the two pulling claws are driven to move along the axial direction of the outer screw, so that the bearing fastened on the shaft is pulled out along the shaft, and the bearing is dismounted. This in-process is because the axle passes through radial locking bolt to be fixed in the axle stop collar to prevent that screw rod and axle from separating and draw claw and bearing separation, avoided the bearing to draw the problem of horse easy slippage, thereby can effectively solve the bearing among the prior art and draw the horse, there is the bearing to draw the horse easy slippage at the process of dismantling the bearing, and influence the problem that the bearing was dismantled.
Preferably, the outer screw rod is internally provided with inner screw holes which are coaxially distributed, the inner screw holes penetrate through two ends of the outer screw rod, one end opening of each inner screw hole is located in the shaft limiting sleeve, the inner screw rod is in threaded connection with the inner screw holes, and one end of the inner screw rod, facing the shaft limiting sleeve, can extend into the shaft limiting sleeve. Because outer screw rod one end is equipped with the axle stop collar, if the axle that the bearing was located does not set up the step, then the bearing can be blockked by the axle stop collar, and the card can't be pulled out completely at the axle tail end. In order to solve the problem, the technical scheme is provided with the inner screw rod, specifically, the bearing fastened on the shaft is pulled out along the shaft by rotating the outer screw rod, the bearing is abutted against the shaft limiting sleeve, then, all radial locking bolts are loosened, and then, the end part of the inner screw rod extends into the shaft limiting sleeve and is abutted against the end surface of the shaft by rotating the inner screw rod, so that the bearing is completely separated from the shaft.
Preferably, one end of the inner screw facing the shaft limiting sleeve is provided with a top rod, the top rod and the inner screw are coaxially distributed, and the outer diameter of the top rod is smaller than that of the inner screw.
Preferably, one end of the inner screw is provided with an inner screw driving handle, and the inner screw driving handle and the shaft limiting sleeve are positioned on two opposite sides of the cross beam. Thus, the inner screw can be driven to rotate by the inner screw driving handle.
Preferably, one end of the outer screw is provided with an outer screw driving handle, and the outer screw driving handle and the shaft limiting sleeve are positioned on two opposite sides of the cross beam. In this way, the outer screw can be driven to rotate by the outer screw driving handle.
Preferably, the cross beam is provided with two guide grooves corresponding to the pull claws one to one, the two guide grooves are distributed on two opposite sides of the outer screw rod, the guide grooves extend along the radial direction of the outer screw rod, one end of the pull claw is provided with a sliding block matched with the guide grooves, and the sliding block slides along the corresponding guide grooves, so that one end of the pull claw is connected with the cross beam in a sliding manner. So, draw the claw and can follow the guide slot and slide to the bearing that adapts to different specifications uses, and the commonality is good.
Preferably, the guide groove is a T-shaped groove or a dovetail groove, and the slide block is a T-shaped slide block or a dovetail slide block correspondingly.
Preferably, the sliding block is provided with a sliding block locking bolt, and the sliding block locking bolt is used for locking and fixing the sliding block in the guide groove. So, draw the claw and slide along the guide slot, adjust the position and use the back with the bearing that adapts to different specifications, can fix the slider locking in the guide slot through slider locking bolt to fixed drawing the claw.
Preferably, the radial locking bolts are distributed along the radial extension of the shaft stop collar.
Preferably, the shaft limiting sleeve and the outer screw rod are connected through threads or welding or are in an integrated structure.
The beneficial effects of the utility model are that:
the bearing puller can effectively solve the problem that the bearing puller in the prior art is easy to slip in the process of detaching the bearing, so that the bearing detachment is influenced.
And secondly, the bearing can be completely separated from the shaft, and the bearing clamp is prevented from being clamped at the tail end of the shaft and cannot be completely pulled out.
Thirdly, the bearing device can adapt to bearings of different specifications and is good in universality.
Drawings
Fig. 1 is a schematic structural view of the bearing puller of the present invention.
In the figure:
an outer screw 1, an outer screw driving handle 1.1;
a beam 2, a guide groove 2.1;
a pull claw 3 and a slide block 3.1;
the shaft limiting structure 4, the shaft limiting sleeve 4.1, the radial screw hole 4.2 and the radial locking bolt 4.3 are arranged on the shaft;
an inner screw 5, an inner screw driving handle 5.1 and a top rod 5.2;
the slide blocks lock the bolts 6.
Detailed Description
In a first embodiment, as shown in fig. 1, a bearing puller includes an external screw rod 1, a cross beam 2, two pulling claws 3, and a shaft limiting structure 4. The middle part of the beam 2 is provided with a beam screw hole matched with the outer screw rod, and the outer screw rod is connected with the beam screw hole through threads. Two pull claws 3 are distributed on two opposite sides of the outer screw rod, and one end of each pull claw is connected with the cross beam. The shaft limiting structure 4 comprises a shaft limiting sleeve 4.1 fixed at one end of the outer screw rod, a plurality of radial screw holes 4.2 arranged on the side wall of the shaft limiting sleeve and radial locking bolts 4.3 arranged in the radial screw holes in a one-to-one correspondence mode. The shaft limiting sleeve and the outer screw rod are connected through threads or welded or integrally formed. The shaft limiting sleeve and the outer screw rod are coaxially distributed. Each radial screw hole is evenly distributed around the circumference of the shaft limiting sleeve, and the radial screw holes penetrate through the inner side surface and the outer side surface of the shaft limiting sleeve. The number of the radial screw holes is 2-4, and in the embodiment, the number of the radial screw holes is 4. The radial locking bolts are distributed along the radial extension of the shaft limiting sleeve.
The bearing puller of the scheme is specifically used as follows,
firstly, hooking two pull claws on an outer ring of a bearing on a shaft;
inserting the end part of the shaft into the shaft limiting sleeve, and then locking and fixing the shaft in the shaft limiting sleeve by locking each radial locking bolt;
secondly, by rotating the outer screw (during the rotation of the outer screw, the shaft also rotates along with the outer screw), the beam and the two pulling claws are driven to move along the axial direction of the outer screw, so that the bearing fastened on the shaft is pulled out along the shaft, and the bearing is dismounted. This in-process is because the axle passes through radial locking bolt to be fixed in the axle stop collar to prevent that screw rod and axle from separating and draw claw and bearing separation, avoided the bearing to draw the problem of horse easy slippage, thereby can effectively solve the bearing among the prior art and draw the horse, there is the bearing to draw the horse easy slippage at the process of dismantling the bearing, and influence the problem that the bearing was dismantled.
Further, as shown in fig. 1, the bearing puller further comprises an inner screw 5. The outer screw rod is internally provided with inner screw holes which are coaxially distributed, and the inner screw holes penetrate through two ends of the outer screw rod. One end opening of the inner screw hole is positioned in the shaft limiting sleeve. The inner screw rod is connected with the inner screw hole through threads, and one end of the inner screw rod facing the shaft limiting sleeve can extend into the shaft limiting sleeve. Because outer screw rod one end is equipped with the axle stop collar, if the axle that the bearing was located does not set up the step, then the bearing can be blockked by the axle stop collar, and the card can't be pulled out completely at the axle end. In order to solve the problem, the technical scheme is provided with the inner screw rod, specifically, the bearing fastened on the shaft is pulled out along the shaft by rotating the outer screw rod, the bearing is abutted against the shaft limiting sleeve, then, all radial locking bolts are loosened, and then, the end part of the inner screw rod extends into the shaft limiting sleeve and is abutted against the end surface of the shaft by rotating the inner screw rod, so that the bearing is completely separated from the shaft.
And one end of the inner screw rod facing the shaft limiting sleeve is provided with a top rod 5.2, the top rods and the inner screw rod are coaxially distributed, and the outer diameter of each top rod is smaller than that of the inner screw rod.
Further, as shown in fig. 1, one end of the internal screw is provided with an internal screw driving handle 5.1, and the internal screw driving handle and the shaft limiting sleeve are positioned at two opposite sides of the cross beam. Thus, the inner screw can be driven to rotate by the inner screw driving handle.
Further, as shown in fig. 1, an outer screw driving handle 1.1 is provided at one end of the outer screw, and the outer screw driving handle and the shaft limiting sleeve are located at opposite sides of the beam. Thus, the outer screw can be driven to rotate by the outer screw driving handle.
Further, as shown in fig. 1, the cross beam 2 is provided with two guide grooves 2.1 corresponding to the pull claws one to one, the two guide grooves are distributed on two opposite sides of the outer screw rod, and the guide grooves extend along the radial direction of the outer screw rod. In this embodiment, two guide slots are symmetrically distributed on opposite sides of the outer screw. One end of the pull claw 3 is provided with a sliding block 3.1 matched with the guide groove, and the sliding block slides along the corresponding guide groove so that one end of the pull claw is connected with the cross beam in a sliding way. So, draw the claw and can follow the guide slot and slide to the bearing of adaptation different specifications uses, the commonality is good.
The guide groove is a T-shaped groove or a dovetail groove, and the sliding block is a T-shaped sliding block or a dovetail sliding block correspondingly.
And a slide block locking bolt 6 is arranged on the slide block and is used for locking and fixing the slide block in the guide groove. So, drawing the claw and sliding along the guide slot, adjusting the position and using the back with the bearing that adapts to different specifications, can be fixed the slider locking in the guide slot through slider locking bolt to the claw is drawn in the fixed.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent transformation of doing above embodiment the utility model discloses technical scheme's protection scope.
Claims (10)
1. A bearing puller, comprising:
an outer screw rod;
the middle part of the cross beam is provided with a cross beam screw hole matched with the outer screw rod, and the outer screw rod is connected with the cross beam screw hole through threads;
the two pulling claws are distributed on two opposite sides of the outer screw rod, and one end of each pulling claw is connected with the cross beam; it is characterized by also comprising:
the axle limit structure, axle limit structure are including fixing the axle stop collar in outer screw rod one end, a plurality of radial screw and the radial locking bolt of setting in radial screw of one-to-one on the lateral wall of axle stop collar, axle stop collar and the coaxial distribution of outer screw rod, each radial screw is around the circumference evenly distributed of axle stop collar, and the interior lateral surface of axle stop collar is run through to radial screw.
2. The bearing puller according to claim 1, further comprising an inner screw rod, wherein the outer screw rod is provided with inner screw holes coaxially distributed therein, the inner screw holes penetrate through both ends of the outer screw rod, one end opening of the inner screw hole is located in the shaft limiting sleeve, the inner screw rod is in threaded connection with the inner screw holes, and one end of the inner screw rod facing the shaft limiting sleeve can extend into the shaft limiting sleeve.
3. The bearing puller according to claim 2, wherein an ejector rod is arranged at one end of the inner screw rod facing the shaft limiting sleeve, the ejector rod and the inner screw rod are coaxially distributed, and the outer diameter of the ejector rod is smaller than that of the inner screw rod.
4. A bearing puller according to claim 2 or claim 3, wherein the inner screw has an inner screw drive handle at one end thereof, the inner screw drive handle and the shaft stop collar being located on opposite sides of the cross beam.
5. A bearing puller according to claim 1, 2 or 3, wherein the outer screw drive handle is provided at one end of the outer screw, the outer screw drive handle and the shaft stop collar being located on opposite sides of the cross member.
6. A bearing puller according to claim 1, 2 or 3, wherein the cross beam is provided with two guide grooves corresponding to the pull claws one to one, the two guide grooves are distributed on opposite sides of the outer screw rod, the guide grooves extend in a radial direction of the outer screw rod, one end of the pull claw is provided with a slide block which is matched with the guide grooves, and the slide block slides along the corresponding guide groove so that one end of the pull claw is slidably connected with the cross beam.
7. The bearing puller according to claim 6, wherein the guide groove is a T-shaped groove or a dovetail groove, and the sliding block is a T-shaped sliding block or a dovetail sliding block correspondingly.
8. The bearing puller according to claim 6, wherein the slider is provided with a slider locking bolt for locking and fixing the slider in the guide groove.
9. A bearing puller as claimed in claim 1, 2 or 3 wherein said radial locking bolts are distributed along the radial extent of the shaft stop collar.
10. The bearing puller according to claim 1, 2 or 3, wherein the shaft limiting sleeve and the outer screw rod are connected by screw thread or welding or are of an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221888032.6U CN217992399U (en) | 2022-07-20 | 2022-07-20 | Bearing puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221888032.6U CN217992399U (en) | 2022-07-20 | 2022-07-20 | Bearing puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217992399U true CN217992399U (en) | 2022-12-09 |
Family
ID=84316388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221888032.6U Active CN217992399U (en) | 2022-07-20 | 2022-07-20 | Bearing puller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217992399U (en) |
-
2022
- 2022-07-20 CN CN202221888032.6U patent/CN217992399U/en active Active
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