CN210549358U - Automatic bearing dismounting device - Google Patents
Automatic bearing dismounting device Download PDFInfo
- Publication number
- CN210549358U CN210549358U CN201921000370.XU CN201921000370U CN210549358U CN 210549358 U CN210549358 U CN 210549358U CN 201921000370 U CN201921000370 U CN 201921000370U CN 210549358 U CN210549358 U CN 210549358U
- Authority
- CN
- China
- Prior art keywords
- pull rod
- cylinder body
- hook
- shaped part
- dismounting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The utility model discloses an automatic dismounting device of bearing, including pneumatic cylinder and pull rod, the cylinder body of pneumatic cylinder is the drum structure, and its piston rod is stretched out by the one end of cylinder body. The pull rods are arranged in a plurality of annular shapes and are uniformly arranged on a concentric circle taking the axis of the cylinder body as the circle center. One end of the pull rod is provided with a first hook-shaped part, the other end of the pull rod is provided with a second hook-shaped part, and the direction of the second hook-shaped part is opposite to that of the first hook-shaped part. The hydraulic cylinder is connected with one port of the reversing valve through a first high-pressure rubber pipe, and the other port of the reversing valve is connected with the oil pump through a second high-pressure rubber pipe. The utility model discloses structural design is ingenious, and degree of automation is high, dismantles process convenient operation, and the security is good, can effectively avoid axle and bearing impaired, and labour saving and time saving greatly reduces the operation degree of difficulty, dismantles efficiently.
Description
Technical Field
The utility model relates to a mining machinery technical field, concretely relates to automatic dismounting device of bearing.
Background
When equipment maintenance is carried out in a machine maintenance factory of a coal mine, the bearing is often detached from the shaft. In the bearing disassembly process, a worker holds a hammer to knock the bearing from the shaft, and the conventional bearing disassembly mode is troublesome and labor-consuming, high in operation difficulty and high in labor intensity. The dismantlement in-process requires highly and patience to workman's technical merit, dismantles the condition that then easily causes axle and bearing damage at the excessive speed, leads to axle and bearing to scrap, and the artifical security of dismantling is poor, and the situation of accidental injury appears very probably, has great potential safety hazard, and the biggest disadvantage of artifical dismantlement is exactly to dismantle inefficiency, with high costs. Therefore, the prior art is in need of further improvement.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of the prior art, the utility model provides an automatic bearing dismounting device, which is large in operation difficulty, time and labor consuming, easy to cause the damage of a shaft and a bearing and the problem of low dismounting efficiency when the shaft and the bearing are dismounted.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the automatic bearing dismounting device comprises a hydraulic cylinder and a pull rod, wherein a cylinder body of the hydraulic cylinder is of a cylindrical structure, and a piston rod of the hydraulic cylinder extends out of one end of the cylinder body. The pull rods are arranged in a plurality of annular shapes and are uniformly arranged on a concentric circle taking the axis of the cylinder body as the circle center. One end of the pull rod is provided with a first hook-shaped part, the other end of the pull rod is provided with a second hook-shaped part, and the direction of the second hook-shaped part is opposite to that of the first hook-shaped part. The hydraulic cylinder is connected with one port of the reversing valve through a first high-pressure rubber pipe, and the other port of the reversing valve is connected with the oil pump through a second high-pressure rubber pipe.
Preferably, the outer wall of the cylinder body is provided with hinged supports which are equal in number and correspond to the pull rods in position, and the middle of each pull rod is hinged with the corresponding hinged support through a pin shaft.
Preferably, the cross section of the pull rod is rectangular.
Preferably, the length of the hinged position of the pull rod and the hinged support from one end of the hinged support is one third of the whole length of the pull rod.
Preferably, the outer wall of the cylinder body is provided with limiting seats which are equal in number and correspond to the pull rods in position, limiting grooves matched with the pull rods are formed in the limiting seats, and the pull rods are located in the corresponding limiting grooves.
Preferably, the both ends of pull rod are provided with spacing portion respectively, and every spacing portion is located the back of the colluding form portion of same end, the outside activity cover of cylinder body is equipped with the lock sleeve with spacing portion matched with.
Preferably, the locking sleeve is in threaded fit with the outer wall of the cylinder body, and the locking sleeve can be rotated to move along the axial direction of the cylinder body. The outer wall of the locking sleeve is a conical surface, and the conical surface is matched with the limiting parts at the same end of each pull rod.
By adopting the technical scheme, the utility model discloses a beneficial technological effect is: the utility model discloses structural design is ingenious, and degree of automation is high, dismantles process convenient operation, and the security is good, can effectively avoid axle and bearing impaired, and labour saving and time saving greatly reduces the operation degree of difficulty, dismantles efficiently.
Drawings
Fig. 1 is a schematic view of the main view structure principle of the automatic bearing dismounting device of the present invention.
Fig. 2 is a schematic view of the overlooking structure principle of the automatic bearing dismounting device of the present invention.
Fig. 3 is a schematic view of the matching relationship between the limiting seat and the cylinder body of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, an automatic bearing dismounting device includes a hydraulic cylinder 1 and a pull rod 2, wherein a cylinder body of the hydraulic cylinder 1 is a cylinder structure, and a piston rod 11 of the hydraulic cylinder extends out from one end of the cylinder body. The single-action hydraulic cylinder is preferentially adopted for the hydraulic cylinder 1, the hydraulic cylinder 1 is connected with one port of the reversing valve through a first high-pressure rubber pipe, the first high-pressure rubber pipe is used for feeding oil into the hydraulic cylinder 1 and returning oil, the feeding oil into the hydraulic cylinder 1 and the returning oil are realized through the reversing valve, and the port at the other end of the reversing valve is connected with the oil pump through a second high-pressure rubber pipe. The oil pump supplies oil to the hydraulic cylinder 1 through the reversing valve to drive the piston rod 11 of the hydraulic cylinder 1 to extend, when the piston rod 11 of the hydraulic cylinder 1 retracts, the oil pump supplies oil to the hydraulic cylinder 1, the hydraulic cylinder 1 returns oil through the reversing valve, and the piston rod 11 retracts under the action of the spring in the cylinder body.
The number of the pull rods 2 is three, and the three pull rods 2 are all located on the outer side of the cylinder body and are uniformly arranged on a concentric circle taking the axis of the cylinder body as the center of a circle in an annular mode. One end of the pull rod 2 is provided with a first hook-shaped part 21, the other end of the pull rod is provided with a second hook-shaped part 22, and the direction of the second hook-shaped part 22 is opposite to that of the first hook-shaped part 21. The outer wall of the cylinder body is provided with three hinged supports 3, the three hinged supports 3 are respectively in one-to-one correspondence with the three pull rods 2, and the middle part of each pull rod 2 is hinged with the corresponding hinged support 3 through a pin shaft. The cross section of the pull rod 2 is rectangular, and the length of the hinged position of the pull rod 2 and the hinged support 3, which is far away from one end of the first hook-shaped part 21, is one third of the whole length of the pull rod 2. When in use, the utility model is used,
the outer wall of the cylinder body is provided with three limiting seats 4, the limiting seats 4 correspond to the pull rods 2 one by one, limiting grooves 41 matched with the pull rods 2 are formed in the limiting seats 4, the pull rods 2 are located in the corresponding limiting grooves 41, and the pull rods 2 located in the limiting grooves 41 are restrained by the limiting seats 4 to prevent the swing of the pull rods. Two ends of the pull rod 2 are respectively provided with a limiting part 23, each limiting part 23 is positioned on the back of the hook-shaped part at the same end, and a locking sleeve 5 matched with the limiting part 23 is movably sleeved outside the cylinder body. The locking sleeve 5 is in threaded fit with the outer wall of the cylinder body, and the locking sleeve 5 can be rotated to move along the axis direction of the cylinder body. The outer wall of the locking sleeve 5 is a conical surface which is matched with the limiting parts 23 at the same end of each pull rod 2 and can limit the pull rods 2 to rotate around the hinged support 3 connected with the pull rods.
The working principle of the utility model is as follows: in use, first, the shaft with the bearing is placed on one end of the piston rod 11 of the hydraulic cylinder 1, and the end of the piston rod 11 is pressed against the end of the shaft. Secondly, the end of the piston rod 11 is against the end of the shaft, and the length of the piston rod 11 is adjusted to make the first hook-shaped part 21 of each pull rod 2 clamped on the side of the bearing far away from the piston rod. The locking sleeve 5 can be rotated to move towards one end of the piston rod 11 along the axis direction of the cylinder body, the outer wall of the locking sleeve 5 clamps the limiting part 23 of the pull rod 2 at one end of the second hook-shaped part 22, and the limiting part 23 prevents the first hook-shaped part 21 of each pull rod 2 from moving outwards, so that the first hook-shaped part 21 is prevented from being separated from the bearing. Finally, the oil pump drives the piston rod 11 to continue to extend, the bearing is kept still relative to the cylinder body, the piston rod 11 drives the shaft to move until the shaft is separated from the bearing, and the bearing is disassembled. The utility model discloses when using, according to the bearing apart from the distance of off-axis and piston rod contact one end, the selection can first collude form portion 21 or the second colludes form portion 22 and bearing cooperation. When the bearing is far from the end of the shaft, the positions of the first hook part 21 and the second hook part 22 are exchanged by detaching the pin shaft.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. An automatic bearing dismounting device comprises a hydraulic cylinder and a pull rod, and is characterized in that a cylinder body of the hydraulic cylinder is of a cylindrical structure, and a piston rod of the hydraulic cylinder extends out of one end of the cylinder body; the plurality of pull rods are uniformly arranged on a concentric circle taking the axis of the cylinder body as the center of a circle in an annular shape; one end of the pull rod is provided with a first hook-shaped part, and the other end of the pull rod is provided with a second hook-shaped part, wherein the direction of the second hook-shaped part is opposite to that of the first hook-shaped part; the hydraulic cylinder is connected with one port of the reversing valve through a first high-pressure rubber pipe, and the other port of the reversing valve is connected with the oil pump through a second high-pressure rubber pipe.
2. The automatic bearing dismounting device according to claim 1, wherein the outer wall of the cylinder body is provided with hinge supports which are equal in number and correspond to the pull rods in position, and the middle part of each pull rod is hinged with the corresponding hinge support through a pin shaft.
3. The automatic bearing dismounting device according to claim 1, wherein the cross section of the pull rod is rectangular.
4. The automatic bearing dismounting device according to claim 2, wherein the length of the hinge joint of the pull rod and the hinge support from one end of the hinge support is one third of the overall length of the pull rod.
5. The automatic bearing dismounting device according to claim 1, wherein the outer wall of the cylinder body is provided with limiting seats which are equal in number and correspond to the pull rods in position, limiting grooves which are matched with the pull rods are formed in the limiting seats, and each pull rod is located in the corresponding limiting groove.
6. The automatic bearing dismounting device according to claim 1, wherein two ends of the pull rod are respectively provided with a limiting portion, each limiting portion is located on the back of the hook-shaped portion at the same end, and a locking sleeve matched with the limiting portions is movably sleeved outside the cylinder body.
7. The automatic bearing dismounting device according to claim 6, wherein the locking sleeve is in threaded fit with the outer wall of the cylinder body, and the locking sleeve can be rotated to move along the axial direction of the cylinder body; the outer wall of the locking sleeve is a conical surface, and the conical surface is matched with the limiting parts at the same end of each pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000370.XU CN210549358U (en) | 2019-06-28 | 2019-06-28 | Automatic bearing dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921000370.XU CN210549358U (en) | 2019-06-28 | 2019-06-28 | Automatic bearing dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210549358U true CN210549358U (en) | 2020-05-19 |
Family
ID=70671951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921000370.XU Active CN210549358U (en) | 2019-06-28 | 2019-06-28 | Automatic bearing dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210549358U (en) |
-
2019
- 2019-06-28 CN CN201921000370.XU patent/CN210549358U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107116509B (en) | A kind of cylinder jacket of diesel engine dismantling device | |
| CN210549358U (en) | Automatic bearing dismounting device | |
| CN216830652U (en) | Blowout preventer side door opening device for workover treatment | |
| CN203470477U (en) | Quick back-up roll replacement device for strip rolling mill | |
| CN204135989U (en) | A kind of Quick pin remover of detaching hydraulic support | |
| CN203510093U (en) | Adjustable drawing device | |
| CN209256835U (en) | A kind of needle bearing front output shaft extracting tool | |
| CN207858210U (en) | A kind of single screw squeezing expansion machine special maintenance device | |
| CN209579415U (en) | A kind of single disassembly bearing puller | |
| CN215617809U (en) | Whole set of hydraulic strong disassembling shaft drawing machine for coal mine hydraulic support | |
| CN204621918U (en) | A kind of Piston-Type Oxygen Compressor piston body attaching/detaching apparatus | |
| CN212683813U (en) | Special shaft puller | |
| CN104723249A (en) | Piston body demounting and mounting device for piston type oxygen compressor | |
| CN202176287U (en) | Novel transfer device for power tongs | |
| CN215358228U (en) | Special tool for disassembling mechanical shaft body | |
| CN202832573U (en) | Hydraulic support joist replacement device | |
| CN217703255U (en) | Oil cylinder piston rod mounting tool for automatic packing machine | |
| CN203879520U (en) | Device used for disassembling or assembling hydraulic support stand column guide sleeve underground | |
| CN202640238U (en) | Mounting and dismounting tool for hydraulic oil cylinder locking cap | |
| CN219405534U (en) | Tire mold | |
| CN212926234U (en) | Slewing device for rock loader | |
| CN118407771B (en) | Safe and efficient cutter changing device and method for heading machine | |
| CN210550801U (en) | Stretching device for assisting in disassembling bolt | |
| CN211414989U (en) | Motor does not have round pin band pulley extracting tool | |
| CN215214434U (en) | PVC stirring shaft coupling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |