CN211466244U - Bearing pulling device - Google Patents
Bearing pulling device Download PDFInfo
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- CN211466244U CN211466244U CN202020009204.2U CN202020009204U CN211466244U CN 211466244 U CN211466244 U CN 211466244U CN 202020009204 U CN202020009204 U CN 202020009204U CN 211466244 U CN211466244 U CN 211466244U
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- groove
- pulling
- bearing
- diameter section
- steel ball
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The embodiment of the application discloses bearing is got and is pulled out device includes: taking and pulling the part; one end of the pulling piece is provided with a pulling groove, and the other end of the pulling piece is provided with a screw hole communicated with the pulling groove; the pulling piece is connected with a mandril screw through a screw hole thread; a steel ball which is matched with the groove on the bearing inner ring to realize clamping is arranged in the groove wall of the drawing groove; the pulling piece is sleeved with an elastic sleeve for pressing and locking the steel balls, and the elastic sleeve is detachably connected with the pulling piece. The utility model discloses can take out the bearing inner race fast under the condition that does not harm the guide pulley flange axle, both improve maintenance efficiency, practice thrift cost of maintenance again, be a high-quality bearing and get and pull out the device.
Description
Technical Field
The application relates to the technical field of mechanical maintenance tools, in particular to a bearing pulling device.
Background
In the cigarette production process, in order to ensure the normal use of workshop equipment, the rolling and connecting equipment is required to be subjected to at least secondary wheel maintenance every month, wherein the ZJ112 thread suction belt wing plate guide wheel bearing is periodically replaced. Because this guide pulley material is carbide, damages the guide pulley very easily when dismantling the bearing, and the guide pulley price is high, seriously influences the cost of maintenance and the maintenance efficiency of equipment, for this reason, the utility model provides a device is pulled out to the bearing.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a bearing pulling device, so that the inner ring of a bearing can be quickly taken out under the condition that a flange shaft of a guide wheel is not damaged, the maintenance efficiency is improved, and the maintenance cost is saved.
In view of this, the present application provides a bearing extracting device, including: taking and pulling the part;
one end of the pulling piece is provided with a pulling groove, and the other end of the pulling piece is provided with a screw hole communicated with the pulling groove;
the pulling piece is connected with a mandril screw through the screw hole thread;
a steel ball which is matched with a groove on the bearing inner ring to realize clamping is arranged in the wall of the drawing groove;
the steel ball clamping device is characterized in that an elastic sleeve used for pressing and locking the steel balls is sleeved on the pulling part, and the elastic sleeve is detachably connected with the pulling part.
Optionally, a steel ball hole is formed in the wall of the drawing groove;
the steel ball is arranged in the steel ball hole, and the diameter of the steel ball is larger than the thickness of the wall of the drawing groove.
Optionally, the number of the steel balls is four;
the four steel balls are uniformly arranged in the groove wall of the drawing groove along the circumferential direction.
Optionally, the extractor comprises a large diameter section and a small diameter section;
the diameter of the large-diameter section is larger than that of the small-diameter section;
the large-diameter section and the small-diameter section are integrally formed.
Optionally, the drawing slot is located at one end of the large-diameter section, which is far away from the small-diameter section.
Optionally, a locking nut is sleeved on the small-diameter section and is in threaded connection with the small-diameter section;
the elastic sleeve is fixed on the large-diameter section through the locking nut.
Optionally, the elastic sleeve is in threaded connection with the small diameter section.
Optionally, one end of the ejector rod screw close to the drawing groove is provided with a conical head.
Optionally, one end of the ejector rod screw, which is far away from the pulling groove, is provided with an outer hexagonal structure used for being matched with a wrench to realize screwing.
Optionally, one end of the ejector rod screw, which is far away from the drawing groove, is provided with an inner hexagonal groove.
According to the technical scheme, the embodiment of the application has the following advantages: the extracting device is characterized in that one end of the extracting piece is provided with an extracting groove, the other end of the extracting piece is provided with a screw hole communicated with the extracting groove, the extracting piece is in threaded connection with a mandril screw through the screw hole, a steel ball which is matched with a groove on the bearing inner ring to realize clamping is arranged in the groove wall of the extracting groove, an elastic sleeve which is used for pressing and locking the steel ball is sleeved on the extracting piece, and the elastic sleeve is detachably connected with the extracting piece, when the extracting device is used, the extracting piece containing the steel ball is sleeved on the bearing inner ring which needs to be extracted, the bearing inner ring enters the extracting groove, when the steel ball falls into the groove of the bearing inner ring, the steel ball is pressed and fixed through the installation of the elastic sleeve, so that the steel ball is completely clamped with the groove, then the mandril screw is rotated to extract the bearing inner ring, the extracting device can rapidly extract the bearing inner ring without damaging the guide wheel flange shaft, meanwhile, the pulling device can be applied to the dismounting of the bearing inner rings with different specifications by replacing the locking inner ring, and has great popularization value.
Drawings
FIG. 1 is a schematic structural diagram of a bearing removing device in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a pulling member in the embodiment of the present application;
FIG. 3 is a front view of the extractor of the present application;
wherein the reference numerals are:
1-drawing piece, 2-ejector pin screw, 3-elastic sleeve, 4-lock nut, 5-steel ball, 6-bearing inner ring, 11-large diameter section, 12-small diameter section, 21-conical head, 22-outer hexagonal structure, 23-inner hexagonal groove, 111-drawing groove, 112-steel ball hole, 121-inlet groove and 122-screw hole.
Detailed Description
In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application provides an embodiment of a bearing extracting device, and particularly refers to fig. 1 and 2.
The bearing extracting device in this embodiment includes: the steel ball clamping device comprises a pulling part 1, wherein a pulling groove 111 is formed in one end of the pulling part 1, a screw hole 122 communicated with the pulling groove 111 is formed in the other end of the pulling part 1, the pulling part 1 is connected with an ejector rod screw 2 through the screw hole 122 in a threaded mode, a steel ball 5 used for being clamped with a groove in a bearing inner ring 6 in a matched mode is arranged in the groove wall of the pulling groove 111, an elastic sleeve 3 used for pressing and locking the steel ball 5 is sleeved on the pulling part 1, and the elastic sleeve 3 is detachably connected with the pulling part 1.
It should be noted that: a drawing groove 111 is arranged at one end of a drawing part 1, a screw hole 122 communicated with the drawing groove 111 is arranged at the other end of the drawing part 1, the drawing part 1 is in threaded connection with a mandril screw 2 through the screw hole 122, steel balls 5 used for matching with grooves on a bearing inner ring 6 to realize clamping are arranged in the groove wall of the drawing groove 111, a tension sleeve 3 used for pressing and locking the steel balls 5 is sleeved on the drawing part 1, the tension sleeve 3 is detachably connected with the drawing part 1, when in use, the drawing part 1 containing the steel balls 5 is sleeved on the bearing inner ring 6 needing to be taken out, the bearing inner ring 6 enters the drawing groove 111, when the steel balls 5 fall into the grooves of the bearing inner ring 6, the steel balls 5 are pressed and fixed through installing the tension sleeve 3, so that the steel balls 5 are completely clamped with the grooves, then the mandril screw 2 is rotated to take out the bearing inner ring 6, the drawing device can quickly take out the bearing inner ring 6 without damaging a guide wheel shaft, not only improves the maintenance efficiency, but also saves the maintenance cost, and meanwhile, the pulling device can be applied to the dismounting of the bearing inner rings 6 with different specifications by replacing the locking inner ring, thereby having great popularization value.
The above is a first embodiment of a bearing extracting device provided in the embodiments of the present application, and the following is a second embodiment of a bearing extracting device provided in the embodiments of the present application, please refer to fig. 1 to 3 specifically.
The bearing extracting device in this embodiment includes: the method comprises the following steps that (1) a pulling and pulling piece 1 is taken, one end of the pulling and pulling piece 1 is provided with a pulling and pulling groove 111, the other end of the pulling and pulling piece 1 is provided with a screw hole 122 communicated with the pulling and pulling groove 111, specifically, the other end of the pulling and pulling piece 1 is provided with an inlet groove 121 used for facilitating the extension of a mandril screw 2, the center of the bottom of the inlet groove 121 is provided with the screw hole 122 communicated with the pulling and pulling groove 111, the inlet groove 121 is circular, the radius of the inlet groove 121 is slightly larger than the aperture of the screw hole 122, and the mand; the taking and pulling part 1 is in threaded connection with an ejector rod screw 2 through a screw hole 122, a steel ball 5 used for being matched with a groove in the bearing inner ring 6 to realize clamping is arranged in the groove wall of the taking and pulling groove 111, an elastic sleeve 3 used for pressing and locking the steel ball 5 is sleeved on the taking and pulling part 1, and the elastic sleeve 3 is detachably connected with the taking and pulling part 1.
Specifically, a steel ball hole 112 is formed in a groove wall of the drawing groove 111, the steel ball 5 is arranged in the steel ball hole 112, and the diameter of the steel ball 5 is larger than the thickness of the groove wall of the drawing groove 111.
It should be noted that: this steel ball hole 112 is the through-hole that central diameter is big, both ends diameter is little about, such structure makes steel ball 5 can reciprocate to a certain extent in steel ball hole 112, and can not drop out, when emboliaing the bearing inner race 6 that needs take out, steel ball 5 can outwards slide, then drop in the recess of bearing inner race 6, at this moment, plug up steel ball 5 through installation elasticity cover 3, make steel ball 5 unable outwards removal, thereby realize the joint of steel ball 5 and bearing inner race 6.
As shown in fig. 3, the number of the steel balls 5 is four, the four steel balls 5 are uniformly arranged in the groove wall of the pulling groove 111 along the circumferential direction, and the four steel balls 5 are uniformly arranged in the groove wall of the pulling groove 111 along the circumferential direction, so that the fixing effect of the steel balls 5 and the groove of the bearing inner ring 6 can be greatly improved, and the bearing inner ring 6 can be better pulled out.
The drawing part 1 comprises a large-diameter section 11 and a small-diameter section 12, the diameter of the large-diameter section 11 is larger than that of the small-diameter section 12, and the large-diameter section 11 and the small-diameter section 12 are integrally formed; the drawing groove 111 is located at one end of the large-diameter section 11 far away from the small-diameter section 12.
The cover is equipped with lock nut 4 on the path section 12, and lock nut 4 and path section 12 threaded connection, and lock nut 3 passes through lock nut 4 to be fixed on path section 11, and is concrete, is provided with the external screw thread on the outer wall of path section 12, and lock nut 4 passes through external screw thread and path section 12 threaded connection to fix the lock nut 3 of cover on path section 12 on path section 11.
It can be understood that: the elastic sleeve 3 can be directly sleeved between the locking nut 4 and the large-diameter section 11, the elastic sleeve 3 is fixed through the locking nut 4, or the elastic sleeve 3 can also be in threaded connection with the small-diameter section 12, and when the elastic sleeve 3 is in threaded connection with the small-diameter section 12, the connection is firmer, and the fixing effect is better.
One end of the ejector rod screw 2 close to the drawing groove 111 is provided with a conical head 21, so that the bearing inner ring 6 can be conveniently ejected.
One end of the ejector rod screw 2, which is far away from the pulling groove 111, is provided with an outer hexagonal structure 22 which is used for being matched with a wrench to realize screwing, and the use is convenient.
One end of the ejector rod screw 2, which is far away from the drawing groove 111, is provided with an inner hexagonal groove 23, specifically, the inner hexagonal groove 23 is formed in the center of the outer hexagonal structure 22, so that an outer hexagonal wrench and an inner hexagonal wrench can be used, and the operation is more convenient.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (10)
1. A bearing extracting device is characterized by comprising: taking and pulling the part;
one end of the pulling piece is provided with a pulling groove, and the other end of the pulling piece is provided with a screw hole communicated with the pulling groove;
the pulling piece is connected with a mandril screw through the screw hole thread;
a steel ball which is matched with a groove on the bearing inner ring to realize clamping is arranged in the wall of the drawing groove;
the steel ball clamping device is characterized in that an elastic sleeve used for pressing and locking the steel balls is sleeved on the pulling part, and the elastic sleeve is detachably connected with the pulling part.
2. The bearing extracting device as claimed in claim 1, wherein a steel ball hole is formed on a wall of the extracting groove;
the steel ball is arranged in the steel ball hole, and the diameter of the steel ball is larger than the thickness of the wall of the drawing groove.
3. The bearing extracting apparatus as claimed in claim 1, wherein the number of the steel balls is four;
the four steel balls are uniformly arranged in the groove wall of the drawing groove along the circumferential direction.
4. The bearing extraction device of claim 1 wherein the extraction member comprises a major diameter section and a minor diameter section;
the diameter of the large-diameter section is larger than that of the small-diameter section;
the large-diameter section and the small-diameter section are integrally formed.
5. The bearing extraction device of claim 4 wherein the extraction groove is located at an end of the major diameter section remote from the minor diameter section.
6. The bearing extracting device according to claim 5, wherein a lock nut is sleeved on the small diameter section and is in threaded connection with the small diameter section;
the elastic sleeve is fixed on the large-diameter section through the locking nut.
7. The bearing extraction device of claim 5 wherein the collet is threadably connected to the small diameter section.
8. The bearing extraction device of claim 1 wherein the end of the jackscrew proximate the extraction slot is provided with a conical head.
9. The bearing extracting device according to claim 1, wherein an outer hexagonal structure for being screwed with a wrench is arranged at one end of the ejector rod screw away from the extracting groove.
10. The bearing extracting device according to claim 1, wherein an end of the ejector rod screw away from the extracting groove is provided with an inner hexagonal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009204.2U CN211466244U (en) | 2020-01-03 | 2020-01-03 | Bearing pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020009204.2U CN211466244U (en) | 2020-01-03 | 2020-01-03 | Bearing pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211466244U true CN211466244U (en) | 2020-09-11 |
Family
ID=72358540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020009204.2U Active CN211466244U (en) | 2020-01-03 | 2020-01-03 | Bearing pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211466244U (en) |
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2020
- 2020-01-03 CN CN202020009204.2U patent/CN211466244U/en active Active
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