CN112372580B - Dismounting device for bearing in hole - Google Patents
Dismounting device for bearing in hole Download PDFInfo
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- CN112372580B CN112372580B CN202011170245.0A CN202011170245A CN112372580B CN 112372580 B CN112372580 B CN 112372580B CN 202011170245 A CN202011170245 A CN 202011170245A CN 112372580 B CN112372580 B CN 112372580B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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Abstract
The invention discloses a dismounting device for a bearing in a hole, wherein an inner cylinder is in threaded connection with the inside of an outer cylinder, a plurality of second handles are arranged at the upper part of the inner cylinder, a mandril is in threaded connection with the middle part of the inner cylinder, a conical head is arranged at the lower end of the mandril, and a first handle is arranged at the upper end of the mandril; the inner tube lower part is equipped with two mounting grooves at least, and mounting groove swing joint has the card arm, and card arm one end is equipped with first trip, and the urceolus is equipped with two sets of sprockets at least, and the sprocket passes through the fixed axis and installs on the urceolus outer wall, is equipped with the chain on the sprocket, and the chain lower extreme is equipped with the second trip. When the bearing in the hole is disassembled, the second clamping hook is clamped on the bearing seat or other fixed structures, the clamping arm is inserted into the inner ring of the bearing, the first handle is rotated, the first clamping hook at the lower end of the clamping arm is spread and hooked on the lower end face of the bearing by using the conical head, and then the second handle is rotated to enable the inner cylinder to ascend and drive the clamping arm to move upwards, so that the bearing in the hole is disassembled, the disassembling stability of the bearing in the hole is ensured, and the bearing is prevented from being damaged.
Description
Technical Field
The invention belongs to the technical field of bearing dismounting tools, and particularly relates to a dismounting device for a bearing in a hole.
Background
With the continuous development of science and technology, a bearing is an indispensable important part in all large machines, the problem that the replacement of the bearing is always a headache for all large factories is solved, and the poor removal of the bearing even if a small bearing is replaced by a large machine can have great influence on the subsequent operation of the machine.
At present, the bearing is generally disassembled by adopting a collision method, the method has low working efficiency, high labor intensity and poor safety, and the bearing is easy to damage, so that the disassembly cost is increased.
The Chinese utility model patent with the application number of 201320180666.0 discloses an inner bearing puller, which comprises a pull rod (1), wherein one end of the pull rod (1) is provided with an installation head (3) for installing a puller foot (2), the other end is provided with a handle (4), the pull rod (1) is provided with a sliding hammer (5) which can slide axially on the pull rod (1), the inner bearing puller is characterized in that the installation head (3) is connected with the puller foot (2) through a detachable structure, the puller foot (2) is provided with an expansion structure (6) which can expand or contract radially when the pull rod (1) rotates, and the handle (4) is provided with a power assisting structure (7); when the device is used, a claw 62 is inserted into a bearing, the claw 62 is fixed through a concave platform 611, then a mandril 23 is inserted into a cylindrical body and a connecting screw 22 is connected with the cylindrical body, a connecting bolt 21 is installed on a mounting head 3, the claw 62 is gradually opened by rotating a pull rod 1 through a booster rod 71 so as to fix the bearing, and the bearing is pulled out by impacting a handle 4 through a sliding hammer 5; however, when the bearing is disassembled, the friction force generated when the clamping jaws and the bearing inner ring are expanded is mainly relied on, and the clamping jaws have the functions of opening and contracting, so that the bearing inner ring is easy to separate and fall off after the clamping jaws receive the impact force of the pull rod, the disassembling operation of the bearing is influenced, in addition, the impact force generated by the sliding hammer in the impact moment is large, the bearing is easy to be damaged, particularly, the bearing inner ring generates large acting force, the bearing inner ring is separated from the bearing outer ring, and the bearing is damaged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a dismounting device for a bearing in a hole.
In order to achieve the purpose, the invention adopts the technical scheme that:
a dismounting device for a bearing in a hole comprises an outer barrel, an inner barrel and a push rod, wherein an internal thread (not shown in the figure) is arranged in the outer barrel, the inner barrel is in threaded connection with the inner barrel, a plurality of second handles are arranged on the upper portion of the inner barrel, the push rod is in threaded connection with the middle of the inner barrel, a conical head is arranged at the lower end of the push rod, and a first handle is arranged at the upper end of the push rod; the lower part of the inner cylinder is at least provided with two mounting grooves, pin shafts are arranged in the mounting grooves, the mounting grooves are movably connected with clamping arms, one ends of the clamping arms are provided with pin holes, the pin shafts are movably inserted in the pin holes, the other ends of the clamping arms are provided with first clamping hooks, the lower ends of the clamping arms are in contact with the conical surfaces of the conical heads, the lower parts of the conical heads are provided with accommodating grooves, and the first clamping hooks are accommodated in the accommodating grooves after the clamping arms are retracted; the outer cylinder is at least provided with two groups of chain wheels, the chain wheels are installed on the outer wall of the outer cylinder through a fixed shaft, chains are arranged on the chain wheels, and second clamping hooks are arranged at the lower ends of the chains; when the bearing in the hole is disassembled, the second clamping hook is clamped on the bearing seat or other fixed structures, then the clamping arm is inserted into the inner ring of the bearing, the first handle is rotated, the first clamping hook at the lower end of the clamping arm is unfolded and hooks the lower end face of the bearing by utilizing the conical head at the lower end of the ejector rod, then the second handle is rotated, the inner cylinder is made to ascend, the clamping arm is driven to move upwards, the bearing in the hole is disassembled, the disassembling stability of the bearing in the hole is ensured, and the bearing damage is avoided.
As a further preferred option of the technical scheme, the fixed shaft is a spline shaft, a shaft sleeve is arranged inside the chain wheel, a spline groove matched with the fixed shaft is arranged on an inner ring of the shaft sleeve, the outside of the shaft sleeve is rotatably connected with the chain wheel through a bearing, a plurality of pawls are arranged on an outer ring of the shaft sleeve, and a plurality of ratchets matched with the pawls are arranged on an inner ring of the chain wheel; the pawl and the ratchet structure avoid the situation that the chain wheel rotates to cause the fact that the dismounting device cannot be tensioned when the bearing is dismounted, so that the dismounting effect of the dismounting device is influenced.
As a further preferred option of the technical solution, a tightening spring (not shown in the figure) is arranged on one side of the pawl, the other end of the tightening spring is fixedly connected with the outer ring of the shaft sleeve, and the tightening spring ensures the matching effect of the pawl and the ratchet, thereby preventing the pawl on the upper portion from falling under the action of gravity to affect the braking effect of the pawl.
As a further optimization of the technical scheme, the annular spring is arranged outside the clamping arm, so that the clamping arm can be quickly reset after the bearing is disassembled.
As a further optimization of the technical scheme, a clamping groove is formed in the clamping arm, the annular spring is arranged in the clamping groove, the clamping groove plays a limiting and fixing role in the annular spring, and the annular spring is prevented from sliding on the clamping arm.
As a further preferred option of the technical solution, the upper portion of the sprocket is provided with an adjusting device, the adjusting device comprises an ear plate fixedly mounted on the side wall of the outer cylinder and a pressing plate arranged at the lower portion of the ear plate, the lower portion of the pressing plate is of an arc-shaped structure, the pressing plate is provided with a pull rod, and the upper end of the pull rod penetrates through the ear plate and is provided with a finger plate; when the length of the chain needs to be adjusted, the finger plate is pulled, the pressing plate is lifted by the pull rod, then the chain is adjusted to a proper position, so that the second clamping hook can conveniently hook the fixing structure, then the finger plate is loosened, the pressing plate falls on the upper portion of the chain, and accidents caused by the fact that the chain falls off from the chain wheel when the bearing is detached are avoided.
As a further optimization of the technical scheme, a plurality of compression springs are arranged at the upper part of the pressing plate, the other ends of the compression springs are fixedly connected with the lower surfaces of the lug plates, the compression springs ensure the compression effect of the pressing plate, and the chain is further prevented from being separated from the chain wheel for the purpose of chain separation; one end of the chain is provided with a limiting column, and the limiting column prevents one end of the chain from falling off from the chain wheel.
As a further optimization of the technical scheme, rubber pads are arranged on one sides of the first clamping hook, the second clamping hook and the pressing plate, and the rubber pads prevent the first clamping hook and the second clamping hook from damaging a bearing, a chain or other fixed structures.
As a further preferred option of the technical solution, a positioning rod is arranged at the lower part of the conical head, when the bearing on the shaft is disassembled, the second hook is hooked outside the bearing, then the positioning rod is pushed into the positioning hole at the shaft end, the first handle is rotated to make the ejector rod move downwards, and the bearing on the shaft is disassembled by using the reaction force of the second hook; in order to facilitate the disassembly of the bearings at different positions on the shaft, the positioning rod is a threaded rod, a threaded hole matched with the threaded rod is formed in the lower portion of the conical head, and the length of the positioning rod is adjusted according to the position of the bearing so as to adapt to the disassembly of the bearings with different installation depths.
As a further optimization of the technical scheme, the ejector rod is in threaded connection with a limiting nut, the limiting nut limits the upward movement range of the ejector rod, and bending, breakage and the like of the clamping arm caused by overlarge opening angle of the clamping arm due to excessive upward movement of the ejector rod are avoided.
The invention has the beneficial effects that:
1) when the bearing in the hole is disassembled, the second clamping hook is clamped on the bearing seat or other fixed structures, the clamping arm is inserted into the inner ring of the bearing, the first handle is rotated, the first clamping hook at the lower end of the clamping arm is spread and hooked on the lower end face of the bearing by using the conical head, and then the second handle is rotated to enable the inner cylinder to ascend and drive the clamping arm to move upwards, so that the bearing in the hole is disassembled, the disassembling stability of the bearing in the hole is ensured, and the bearing is prevented from being damaged.
2) The fixed shaft is a spline shaft, a shaft sleeve is arranged in the chain wheel, a spline groove matched with the fixed shaft is arranged on the inner ring of the shaft sleeve, the outer part of the shaft sleeve is rotatably connected with the chain wheel through a bearing, a plurality of pawls are arranged on the outer ring of the shaft sleeve, and a plurality of ratchets matched with the pawls are arranged on the inner ring of the chain wheel; the pawl and the ratchet structure avoid the situation that the chain wheel rotates to cause the fact that the dismounting device cannot be tensioned when the bearing is dismounted, so that the dismounting effect of the dismounting device is influenced.
3) One side of the pawl is provided with a jacking spring, the other end of the jacking spring is fixedly connected with the outer ring of the shaft sleeve, the jacking spring ensures the matching effect of the pawl and the ratchet, and the phenomenon that the braking effect of the pawl is influenced because the pawl on the upper part hangs down under the action of gravity is avoided.
4) The outside of the clamping arm is provided with an annular spring, so that the clamping arm can be quickly reset after the bearing is disassembled.
5) The clamping arm is provided with a clamping groove, the annular spring is arranged in the clamping groove, the clamping groove plays a limiting and fixing role for the annular spring, and the annular spring is prevented from sliding on the clamping arm.
6) The upper part of the chain wheel is provided with an adjusting device, the adjusting device comprises an ear plate fixedly arranged on the side wall of the outer barrel and a pressing plate arranged at the lower part of the ear plate, the lower part of the pressing plate is of an arc structure, the pressing plate is provided with a pull rod, and the upper end of the pull rod penetrates through the ear plate and is provided with a finger plate; when the length of the chain needs to be adjusted, the finger plate is pulled, the pressing plate is lifted by the pull rod, then the chain is adjusted to a proper position, so that the second clamping hook can conveniently hook the fixing structure, then the finger plate is loosened, the pressing plate falls on the upper portion of the chain, and accidents caused by the fact that the chain falls off from the chain wheel when the bearing is detached are avoided.
7) The upper part of the pressing plate is provided with a plurality of pressing springs, the other ends of the pressing springs are fixedly connected with the lower surfaces of the lug plates, the pressing springs ensure the pressing effect of the pressing plate, and the chain is further prevented from being separated from the chain wheel for the purpose of chain separation; one end of the chain is provided with a limiting column which prevents one end of the chain from falling off from the chain wheel.
8) Rubber pads are arranged on one sides of the first clamping hook, the second clamping hook and the pressing plate, and the rubber pads prevent the first clamping hook and the second clamping hook from damaging a bearing, a chain or other fixed structures.
9) A positioning rod is arranged at the lower part of the conical head, when the bearing on the shaft is disassembled, the second clamping hook is hooked outside the bearing, then the positioning rod is propped in the positioning hole at the shaft end, the first handle is rotated to enable the mandril to move downwards, and the bearing on the shaft is disassembled by utilizing the reaction force of the second clamping hook; in order to facilitate the disassembly of the bearings at different positions on the shaft, the positioning rod is a threaded rod, a threaded hole matched with the threaded rod is formed in the lower portion of the conical head, and the length of the positioning rod is adjusted according to the position of the bearing so as to adapt to the disassembly of the bearings with different installation depths.
10) The stop nut is in threaded connection with the ejector rod, limits the upward movement range of the ejector rod, and avoids the bending and breaking of the clamping arm caused by the overlarge opening angle of the clamping arm due to excessive upward movement of the ejector rod.
Drawings
FIG. 1 is a schematic structural diagram of a dismounting device for a bearing in a hole.
FIG. 2 is a schematic structural diagram of a dismounting device for a bearing in a hole with an outer cylinder removed.
FIG. 3 is a schematic view of the assembly of the sleeve and the clamp arm in the dismounting device for the bearing in the hole.
FIG. 4 is a schematic structural diagram of a sleeve in a dismounting device for a bearing in a hole of the invention.
FIG. 5 is a schematic view of a structure of a clamp arm in a dismounting device for a bearing in a hole of the invention.
FIG. 6 is a schematic structural diagram of an adjusting device in the dismounting device for the bearing in the hole.
FIG. 7 is a schematic view of the internal structure of the sprocket of the dismounting device for the bearing in the hole of the present invention.
FIG. 8 is a schematic structural diagram of a mandril in the dismounting device for the bearing in the hole.
FIG. 9 is a schematic view showing the connection between the chain and the second hook of the dismounting device for the bearing in the hole of the present invention.
In the figure: 1. an inner barrel; 11. mounting grooves; 12. a pin shaft; 13. a threaded hole; 14. an outer cylinder; 15. a second handle; 2. a clamp arm; 21. a first hook; 22. a pin hole; 23. a card slot; 24. an annular spring; 3. a chain; 31. a sprocket; 32. a second hook; 33. a rubber pad; 34. a limiting column; 35. a shaft sleeve; 36. a bearing; 37. a pawl; 38. a ratchet; 39. a fixed shaft; 4. an adjustment device; 41. pressing a plate; 42. a pull rod; 43. a fingerboard; 44. a compression spring; 45. an ear plate; 5. a top rod; 51. a limit nut; 52. a conical head; 53. accommodating grooves; 54. positioning a rod; 55. a first handle;
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 9, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a specific orientation, a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
A dismounting device for a bearing in a hole comprises an outer cylinder 14, an inner cylinder 1 and a push rod 5, wherein an internal thread (not shown in the figure) is arranged inside the outer cylinder 14, the inner cylinder 1 is in threaded connection inside the outer cylinder 14, a plurality of second handles 15 are arranged on the upper portion of the inner cylinder 1, the push rod 5 is in threaded connection with the middle of the inner cylinder 1, a conical head 52 is arranged at the lower end of the push rod 5, and a first handle 55 is arranged at the upper end of the push rod 5; the lower part of the inner cylinder 1 is at least provided with two mounting grooves 11, pin shafts 12 are arranged in the mounting grooves 11, the mounting grooves 11 are movably connected with clamping arms 2, one ends of the clamping arms 2 are provided with pin holes 22, the pin shafts 12 are movably inserted into the pin holes 22, the other ends of the clamping arms 2 are provided with first clamping hooks 21, the lower ends of the clamping arms 2 are in contact with the conical surface of a conical head 52, the lower part of the conical head 52 is provided with a containing groove 53, and the first clamping hooks 21 are contained in the containing groove 53 after the clamping arms 2 are retracted; the outer cylinder 14 is at least provided with two groups of chain wheels 31, the chain wheels 31 are installed on the outer wall of the outer cylinder 14 through a fixed shaft 39, a chain 3 is arranged on the chain wheels 31, and a second clamping hook 32 is arranged at the lower end of the chain 3; when the bearing 36 in the hole is disassembled, the second clamping hook 32 is clamped on a bearing 36 seat or other fixed structures, then the clamping arm 2 is inserted into the inner ring of the bearing 36, the first handle 55 is rotated, the first clamping hook 21 at the lower end of the clamping arm 2 is spread open and hooks the lower end surface of the bearing 36 by utilizing the conical head 52 at the lower end of the ejector rod 5, then the second handle 15 is rotated, so that the inner cylinder 1 is lifted, the clamping arm 2 is driven to move upwards, the bearing 36 in the hole is disassembled, the disassembling stability of the bearing 36 in the hole is ensured, and the bearing 36 is prevented from being damaged.
In this embodiment, the fixed shaft 39 is a spline shaft, a shaft sleeve 35 is arranged inside the sprocket 31, a spline groove matched with the fixed shaft 39 is arranged on an inner ring of the shaft sleeve 35, the outside of the shaft sleeve 35 is rotatably connected with the sprocket 31 through a bearing 36, a plurality of pawls 37 are arranged on an outer ring of the shaft sleeve 35, and a plurality of ratchet teeth 38 matched with the pawls 37 are arranged on an inner ring of the sprocket 31; the structure of the pawl 37 and the ratchet 38 avoids the chain wheel 31 rotating when the bearing 36 is disassembled to cause the disassembly device to be unable to be tightened, thereby influencing the disassembly effect of the disassembly device.
In this embodiment, a tightening spring (not shown) is disposed on one side of the pawl 37, and the other end of the tightening spring is fixedly connected to the outer ring of the shaft sleeve 35, so that the tightening spring ensures the matching effect of the pawl 37 and the ratchet 38, and prevents the upper pawl 37 from hanging down under the action of gravity to affect the braking effect of the pawl 37.
In this embodiment, the outer portion of the clamp arm 2 is provided with a ring-shaped spring 24, which facilitates quick return of the clamp arm 2 after the bearing 36 is removed.
In this embodiment, the clamp arm 2 is provided with the clamp groove 23, the ring spring 24 is disposed inside the clamp groove 23, and the clamp groove 23 plays a role in limiting and fixing the ring spring 24, so that the ring spring 24 is prevented from sliding on the clamp arm 2.
In this embodiment, the upper portion of the sprocket 31 is provided with an adjusting device 4, the adjusting device 4 includes an ear plate 45 fixedly installed on the sidewall of the outer cylinder 14, and a pressing plate 41 disposed at the lower portion of the ear plate 45, the lower portion of the pressing plate 41 is an arc-shaped structure, the pressing plate 41 is provided with a pull rod 42, and the upper end of the pull rod 42 penetrates through the ear plate 45 and is provided with a finger plate 43; when the length of the chain 3 needs to be adjusted, the finger plate 43 is pulled, the pull rod 42 lifts the pressing plate 41, then the chain 3 is adjusted to a proper position, so that the second clamping hook 32 is suitable for hooking the fixed structure, then the finger plate 43 is loosened, the pressing plate 41 falls on the upper part of the chain 3, and accidents caused by the fact that the chain 3 falls off from the chain wheel 31 when the bearing 36 is detached are avoided.
In this embodiment, the upper portion of the pressing plate 41 is provided with a plurality of pressing springs 44, the other ends of the pressing springs 44 are fixedly connected with the lower surface of the ear plate 45, and the pressing springs 44 ensure the pressing effect of the pressing plate 41, so as to further avoid chain detachment from the chain wheel 31 for the chain 3; one end of the chain 3 is provided with a limiting column 34, and the limiting column 34 prevents one end of the chain 3 from falling off from the chain wheel 31.
In this embodiment, the first hook 21, the second hook 32 and the pressing plate 41 are respectively provided with a rubber pad 33 on one side, and the rubber pads 33 prevent the first hook 21 and the second hook 32 from damaging the bearing 36, the chain 3 or other fixed structures.
In this embodiment, a positioning rod 54 is disposed at the lower part of the conical head 52, when the shaft bearing 36 is removed, the second hook 32 is hooked outside the bearing 36, then the positioning rod 54 is pushed against the positioning hole at the shaft end, the first handle 55 is rotated to move the carrier rod 5 downwards, and the shaft bearing 36 is removed by the reaction force of the second hook 32; in order to facilitate the removal of the bearings 36 at different positions on the shaft, the positioning rod 54 is a threaded rod, the lower part of the conical head 52 is provided with a threaded hole 13 matched with the threaded rod, and the length of the positioning rod 54 is adjusted according to the position of the bearing 36 so as to adapt to the removal of the bearings 36 with different installation depths.
In this embodiment, the top rod 5 is connected with the limit nut 51 through the thread, and the limit nut 51 limits the upward movement range of the top rod 5, so that the bending and the breaking of the clamp arm 2 caused by the overlarge opening angle of the clamp arm 2 due to the excessive upward movement of the top rod 5 are avoided.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (8)
1. A dismounting device for a bearing in a hole comprises an outer barrel, an inner barrel and a push rod, and is characterized in that internal threads are arranged in the outer barrel, the inner barrel is in threaded connection with the inner barrel, a plurality of second handles are arranged on the upper portion of the inner barrel, the push rod is in threaded connection with the middle of the inner barrel, a conical head is arranged at the lower end of the push rod, and a first handle is arranged at the upper end of the push rod; the lower part of the inner cylinder is at least provided with two mounting grooves, pin shafts are arranged in the mounting grooves, the mounting grooves are movably connected with clamping arms, one ends of the clamping arms are provided with pin holes, the pin shafts are movably inserted in the pin holes, the other ends of the clamping arms are provided with first clamping hooks, the lower ends of the clamping arms are in contact with the conical surfaces of the conical heads, the lower parts of the conical heads are provided with accommodating grooves, and the first clamping hooks are accommodated in the accommodating grooves after the clamping arms are retracted; the outer cylinder is at least provided with two groups of chain wheels, the chain wheels are installed on the outer wall of the outer cylinder through a fixed shaft, chains are arranged on the chain wheels, and second clamping hooks are arranged at the lower ends of the chains; the lower part of the conical head is provided with a positioning rod which is a threaded rod, and the lower part of the conical head is provided with a threaded hole matched with the threaded rod; and the ejector rod is in threaded connection with a limiting nut.
2. The removing device for the bearing in the hole as claimed in claim 1, wherein the fixed shaft is a spline shaft, the inside of the chain wheel is provided with a shaft sleeve, the inside of the shaft sleeve is provided with a spline groove matched with the fixed shaft, the outside of the shaft sleeve is rotatably connected with the chain wheel through the bearing, the outside of the shaft sleeve is provided with a plurality of pawls, and the inside of the chain wheel is provided with a plurality of ratchets matched with the pawls.
3. The dismounting device for the bearing in the hole as claimed in claim 2, wherein one side of the pawl is provided with a jacking spring, and the other end of the jacking spring is fixedly connected with the outer ring of the shaft sleeve.
4. A removal device for a bearing in a bore as claimed in claim 1, wherein the latch arm is externally provided with an annular spring.
5. A dismounting device for an in-hole bearing according to claim 4, characterized in that the snap arm is provided with a snap groove, and the ring spring is arranged inside the snap groove.
6. The dismounting device for the in-hole bearing as claimed in claim 1, wherein the upper portion of the chain wheel is provided with an adjusting device, the adjusting device comprises an ear plate fixedly mounted on the side wall of the outer cylinder, and a pressing plate arranged on the lower portion of the ear plate, the lower portion of the pressing plate is of an arc-shaped structure, the pressing plate is provided with a pull rod, and the upper end of the pull rod penetrates through the ear plate and is provided with a finger plate.
7. The dismounting device for the in-hole bearing as claimed in claim 6, wherein the upper portion of the pressing plate is provided with a plurality of compression springs, the other ends of the compression springs are fixedly connected with the lower surfaces of the ear plates, and one end of the chain is provided with a limiting column.
8. A dismounting device for a bearing in a hole according to claim 6 or 7, characterized in that rubber pads are arranged on one side of the first hook, the second hook and the pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170245.0A CN112372580B (en) | 2020-10-28 | 2020-10-28 | Dismounting device for bearing in hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170245.0A CN112372580B (en) | 2020-10-28 | 2020-10-28 | Dismounting device for bearing in hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112372580A CN112372580A (en) | 2021-02-19 |
| CN112372580B true CN112372580B (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011170245.0A Active CN112372580B (en) | 2020-10-28 | 2020-10-28 | Dismounting device for bearing in hole |
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| CN (1) | CN112372580B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114536275B (en) * | 2022-03-17 | 2024-06-04 | 陕西法士特齿轮有限责任公司 | Bearing dismounting mechanism |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB163862A (en) * | 1920-03-23 | 1921-06-02 | Thomas Wightman Carradus | Improved means for facilitating the removal of pulleys, wheels and the like from shafts |
| GB789619A (en) * | 1954-08-03 | 1958-01-22 | Alfred Kleinbongartz | Internal puller device for bearings, collars and the like |
| CN202062341U (en) * | 2011-02-28 | 2011-12-07 | 宣化钢铁集团有限责任公司 | Tapered bearing outer ring taking device |
| KR101285370B1 (en) * | 2011-12-26 | 2013-07-11 | 부산교통공사 | Bearing puller for air end of main air compressor in subway train |
| CN207309855U (en) * | 2017-09-27 | 2018-05-04 | 中国人民解放军第五七二一工厂 | A kind of stepped hole interior axle bearing outer-ring extracting tool |
| CN209110981U (en) * | 2018-11-09 | 2019-07-16 | 国投白银风电有限公司 | A kind of inner bearing provision for disengagement |
| CN210550834U (en) * | 2019-04-28 | 2020-05-19 | 利华益维远化学股份有限公司 | Puller for disassembling bearing |
| CN211103770U (en) * | 2019-11-13 | 2020-07-28 | 大新华飞机维修服务有限公司 | General assembly and disassembly tools of bearing bush for aircraft |
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| CN112372580A (en) | 2021-02-19 |
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