CN111571527A - Shaft sleeve dismounting tool - Google Patents
Shaft sleeve dismounting tool Download PDFInfo
- Publication number
- CN111571527A CN111571527A CN202010492195.1A CN202010492195A CN111571527A CN 111571527 A CN111571527 A CN 111571527A CN 202010492195 A CN202010492195 A CN 202010492195A CN 111571527 A CN111571527 A CN 111571527A
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- China
- Prior art keywords
- pressure applying
- seat
- rod
- pressing
- positioning seat
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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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a shaft sleeve dismounting tool, which is characterized in that: the pressing device comprises a supporting seat, a positioning seat, a pressing seat and a pressing rod, wherein the supporting seat is used for abutting against a workpiece, the positioning seat is used for abutting against a shaft sleeve, a plane thread turntable is arranged in the positioning seat, one end of the plane thread turntable is in threaded connection with a clamping jaw, the center of the other end of the plane thread turntable is fixedly connected with a rotating part, a stirring disc is arranged in the pressing seat, the stirring disc is fixedly connected with a stirring rod, the stirring rod penetrates through the pressing rod, stirring blades are uniformly distributed on the stirring disc, a pressing stop rod is arranged on the pressing seat at a position corresponding to the stirring blades, a return groove is formed in the pressing stop rod between the pressing stop rod and the contact surface of the pressing seat, a return bearing block is arranged on the pressing seat between the pressing stop rod and the contact surface of the pressing seat, one end of the return spring is connected to the end part. The invention has the advantages that: avoid damaging the work piece, reduce the maintenance degree of difficulty and shorten maintenance time.
Description
Technical Field
The invention belongs to the technical field of shaft sleeve replacement, and particularly relates to a shaft sleeve dismounting tool.
Background
In a mechanical moving part, parts are abraded due to long-term friction, and the parts need to be replaced when the clearance between a shaft and a hole is abraded to a certain degree, so that a designer selects a material with lower hardness and better wear resistance as a shaft sleeve in the design process, and the abrasion of the shaft and a seat can be reduced; the general shaft sleeve is made into a cylindrical shape and is nested outside the shaft, the general shaft sleeve does integral motion relative to the shaft and bears the load of the shaft, and because the installation and the use are simpler and more convenient, certain places with low speed and high load can replace the traditional bearing; after the shaft sleeve runs for a long time, the surface of the shaft neck is subjected to the extrusion force of the expansion sleeve and the action of composite mechanical force, so that the shaft neck is permanently deformed, the diameter is reduced by 0.1-0.3 mm, and a fit clearance is formed between the shaft sleeve and the main shaft, so that the abrasion of the shaft sleeve is caused; the abrasion of the shaft sleeve easily causes equipment fault operation, causes a series of hazards of low production efficiency, accelerated aging of related equipment, influenced product quality and the like, and can cause forced halt of the equipment or halt of the whole production line in serious cases, thereby causing loss of production time, delay of delivery date and even serious safety production accidents; usually, the shaft sleeve needs to be disassembled and replaced after being worn, and the main method for disassembling the worn shaft sleeve at present is to use a hammer and a screwdriver to slowly knock out along the periphery of the thin wall of the shaft sleeve; the shaft sleeve is thin, so that manual disassembly is difficult and time-consuming, and the hole of the workpiece is scratched or damaged inevitably in the smashing process, so that the precision after re-installation is influenced, and the shaft sleeve has higher technical requirements on maintenance personnel; in addition, the other side of the shaft sleeve arranged in the blind hole is closed, tools cannot be placed from the other end of the blind hole, and the shaft sleeve is troublesome to disassemble. Therefore, it is important to solve the above problems.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the shaft sleeve dismounting tool which avoids damaging workpieces, reduces the maintenance difficulty and shortens the maintenance time.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a shaft sleeve extracting tool which characterized in that: the device comprises a supporting seat, a positioning seat, a pressure applying seat and a pressure applying rod, wherein the supporting seat and the positioning seat are sleeved on the pressure applying rod, the supporting seat is used for abutting against a workpiece, a shaft sleeve is arranged in the workpiece, a group of first supporting rods are symmetrically arranged on the supporting seat, the first supporting rods are connected with first pressure bearing seats, the first pressure bearing seats are sleeved on the pressure applying rod, first nuts are connected with the pressure applying rod at corresponding positions on the first pressure bearing seats in a threaded manner, the positioning seat is used for abutting against the shaft sleeve, a group of second supporting rods are symmetrically arranged on the positioning seat, the second supporting rods are connected with second pressure bearing seats, the second pressure bearing seats are sleeved on the pressure applying rod, second nuts are connected with the pressure applying rod at corresponding positions on the second pressure bearing seats in a threaded manner, a plane thread turntable is arranged in the positioning seat, and the plane thread turntable is coaxial with the positioning seat, and also sleeved on the pressure applying rod, one end of the plane thread turntable is in threaded connection with a jaw, the jaw penetrates through the positioning seat, four jaws are uniformly distributed around the axis of the plane thread turntable, a groove is arranged on the positioning seat at the position corresponding to the jaw along the radial direction, a guide groove is arranged on the groove between the jaw and the contact surface of the groove, a guide block is arranged on the jaw between the contact surfaces of the jaw and the groove, the guide block is arranged in the guide groove, a rotating part is fixedly connected with the center position of the other end of the plane thread turntable, penetrates through the positioning seat and is sleeved on the pressure applying rod, a bearing is arranged between the rotating part and the contact surface of the positioning seat, a sliding groove is arranged on the pressure applying rod between the positioning seat and the contact surface of the pressure applying rod, and a sliding block is arranged on the positioning seat between the positioning seat and the contact surface of the, the slide block is arranged in the chute, one end of the pressure applying rod can be extended into the workpiece, the end part of the pressure applying rod is fixedly connected with a pressure applying seat, the pressure applying seat is internally provided with a poking disc, the poking disc is fixedly connected with a poking rod, the poking rod penetrates through the pressure applying rod, the end part of the pressure applying rod is provided with a rotating valve, bearings are uniformly distributed between the poking rod and the contact surface of the pressure applying rod, the poking disc is uniformly distributed with poking blades, the pressure applying seat at the corresponding position of the poking blades is provided with a pressure applying stop lever, the pressure applying stop lever radially penetrates through the pressure applying seat, a return groove is arranged on the pressure applying stop lever between the pressure applying stop lever and the contact surface of the pressure applying seat, a return bearing block is arranged on the pressure applying seat between the pressure applying stop lever and the contact surface of the pressure applying seat, the return bearing block is arranged in, one end of the return spring is connected to the end part of the return groove, corresponding to the position outside the pressing seat, of the pressing stop lever, and the other end of the return spring is connected to the return bearing block.
Further, the plane thread rotary table and the rotating part are integrally formed.
Further, the pressure applying rod and the pressure applying seat are integrally formed.
Furthermore, the supporting seat, the pressure applying rod, the positioning seat and the plane thread turntable are coaxial.
Compared with the prior art, the invention has the advantages that: when the four clamping jaws completely abut against the inner side surface of the bearing, the axis of the shaft sleeve is coaxial with the axis of the plane thread turntable, and the axis of the plane nut turntable is coaxial with the axis of the pressure applying rod, so that the shaft sleeve is coaxial with the axis of the pressure applying rod, and the pressure applying rod can move along the axis direction of the through hole or the blind hole on the workpiece under the action of the supporting seat, so that the shaft sleeve is prevented from being stressed unevenly, and the shaft sleeve can be conveniently moved out of the through hole or the blind hole on the workpiece; the shaft sleeve can be fixed on the pressure applying rod between the pressure applying seat and the positioning seat, and even if the shaft sleeve is completely moved out of the through hole or the blind hole on the workpiece, the shaft sleeve can be fixed on the pressure applying rod between the pressure applying seat and the positioning seat, so that the secondary damage of the shaft sleeve is facilitated.
Drawings
FIG. 1 is a schematic perspective exploded view of a shaft sleeve removing tool according to the present invention;
FIG. 2 is a schematic front view of a shaft sleeve removing tool according to the present invention;
FIG. 3 is a schematic front sectional view of a shaft sleeve removing tool according to the present invention;
FIG. 4 is an enlarged structural view of the shaft sleeve removing tool shown in FIG. 3 in the direction A;
FIG. 5 is a schematic front view of the pressing base of the shaft sleeve removing tool of the present invention, wherein the pressing stop lever is shown in the pressing base;
FIG. 6 is a schematic front view of the pressing base of the shaft sleeve removing tool of the present invention, wherein the pressing bar is disposed outside the pressing base;
fig. 7 is a right side view showing the structure of the pressing base of the sleeve removing tool of fig. 6.
In the figure, 1, a supporting seat, 2, a positioning seat, 3, a pressure applying seat, 4, a pressure applying rod, 5, a workpiece, 6, a shaft sleeve, 7, a first supporting rod, 8, a first bearing seat, 9, a first nut, 10, a second supporting rod, 11, a second bearing seat, 12, a second nut, 13, a plane thread turntable, 14, a claw, 15, a groove, 16, a guide groove, 17, a guide block, 18, a rotating part, 19, a sliding groove, 20, a sliding block, 21, a stirring disc, 22, a stirring rod, 23, a rotating valve, 24, a stirring blade, 25, a pressure applying stop rod, 26, a return groove, 27, a return bearing block and 28 are included.
Detailed Description
The following examples are intended to further illustrate the present invention and should not be construed as limiting the scope of the invention, and other insubstantial modifications and adaptations of the invention by those skilled in the art based on the teachings herein are intended to be covered thereby.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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, but 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 invention. 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In fig. 1 to 7, 1 is a supporting seat, 2 is a positioning seat, 3 is a pressing seat, 4 is a pressing rod, 5 is a workpiece, 6 is a shaft sleeve, 7 is a first supporting rod, 8 is a first bearing seat, 9 is a first nut, 10 is a second supporting rod, 11 is a second bearing seat, 12 is a second nut, 13 is a planar threaded rotary table, 14 is a clamping jaw, 15 is a groove, 16 is a guide groove, 17 is a guide block, 18 is a rotating part, 19 is a sliding groove, 20 is a sliding block, 21 is a stirring disc, 22 is a stirring rod, 23 is a rotating valve, 24 is a stirring blade, 25 is a pressing stop rod, 26 is a return groove, 27 is a return bearing block, and 28 is a return spring.
The utility model provides a shaft sleeve extracting tool which characterized in that: comprises a supporting seat 1, a positioning seat 2, a pressure applying seat 3 and a pressure applying rod 4, wherein the supporting seat 1 and the positioning seat 2 are sleeved on the pressure applying rod 4, the supporting seat 1 is used for abutting against a workpiece 5, a shaft sleeve 6 is arranged on the workpiece 5, a group of first supporting rods 7 are symmetrically arranged on the supporting seat 1, the first supporting rods 7 are connected with a first pressure bearing seat 8, the first pressure bearing seat 8 is sleeved on the pressure applying rod 4, a first nut 9 is connected with the pressure applying rod 4 at the corresponding position on the first pressure bearing seat 8 in a threaded manner, the positioning seat 2 is used for abutting against the shaft sleeve 6, a group of second supporting rods 10 are symmetrically arranged on the positioning seat 2, the second supporting rods 10 are connected with a second pressure bearing seat 11, the second pressure bearing seat 11 is sleeved on the pressure applying rod 4, a second nut 12 is connected with the pressure applying rod 4 at the corresponding position on the second pressure bearing seat 11 in a threaded manner, a plane thread turntable 13 is arranged in the, one end of a plane thread turntable 13 is in threaded connection with a clamping jaw 14, the clamping jaw 14 penetrates through a positioning seat 2, four clamping jaws 14 are uniformly distributed around the axis of the plane thread turntable 13, a groove 15 is arranged on the positioning seat 2 at the corresponding position of the clamping jaw 14 along the radial direction, a guide groove 16 is arranged on the groove 15 between the contact surfaces of the clamping jaw 14 and the groove 15, a guide block 17 is arranged on the clamping jaw 14 between the contact surfaces of the clamping jaw 14 and the groove 15, the guide block 17 is arranged in the guide groove 16, a rotating part 18 is fixedly connected with the center position of the other end of the plane thread turntable 13, the rotating part 18 penetrates through the positioning seat 2 and is sleeved on a pressure applying rod 4, a bearing is arranged between the contact surfaces of the rotating part 18 and the positioning seat 2, a sliding groove 19 is arranged on the pressure applying rod 4 between the contact surfaces of the positioning seat, one end of a pressure applying rod 4 can be extended and arranged in a workpiece 5, the end part of the pressure applying rod is fixedly connected with a pressure applying seat 3, a poking disc 21 is arranged in the pressure applying seat 3, a poking rod 22 is fixedly connected with the poking disc 21, the poking rod 22 penetrates through the pressure applying rod 4, the end part of the pressure applying rod is provided with a rotating valve 23, bearings are uniformly distributed between the contact surfaces of the poking rod 22 and the pressure applying rod 4, poking blades 24 are uniformly distributed on the poking disc 21, a pressure applying stop rod 25 is arranged on the pressure applying seat 3 at the position corresponding to the poking blades 24, the pressure applying stop rod 25 radially penetrates through the pressure applying seat 3, a return groove 26 is arranged on the pressure applying stop rod between the pressure applying stop rod and the contact surface of the pressure applying seat 3, a return pressure bearing block 27 is arranged on the pressure applying seat 3 between the contact surfaces of the pressure applying stop rod and the pressure applying seat 3, the return groove 26 is internally provided with a spring 28, the other end of the return spring 28 is connected to the return pressure block 27.
The flat screw rotary disk 13 is integrally formed with the rotary portion 18.
The pressing rod 4 and the pressing base 3 are integrally formed.
The supporting seat 1, the pressure applying seat 3, the pressure applying rod 4, the positioning seat 2 and the plane thread turntable 13 are coaxial.
When the device is used, the pressure applying base 3 is firstly arranged in a through hole or a blind hole on a workpiece 5, the pressure applying rod 4 is arranged outside the workpiece 5, then the rotating valve 23 is rotated, the rotating valve 23 drives the poking rod 22, the poking rod 22 drives the poking disc 21, the poking disc 21 drives the poking blade 24, the poking blade 24 drives the pressure applying stop lever 25, the pressure applying stop lever 25 is arranged outside the pressure applying base 3 and can be clamped on one end of the shaft sleeve 6, then the positioning seat 2 and the second pressure bearing seat 11 are sleeved on the pressure applying rod 4, the positioning seat 2 is abutted on the other end of the shaft sleeve 6, the rotating part 18 is rotated, the rotating part 18 drives the plane thread turntable 13, the plane thread turntable 13 is meshed with the clamping jaw 14, the clamping jaw 14 is abutted on the inner side face of the shaft sleeve 6, the clamping jaw 14 is uniformly distributed around the axis of the plane thread turntable 13 all the time in the moving process, when the four clamping jaws 14 are completely abutted on the inner side, at the moment, the pressure applying rod 4 is in threaded connection with the second nut 12, so that the second nut 12 abuts against the second pressure bearing seat 11, the shaft sleeve 6 can be fixed on the pressure applying rod 4 between the pressure applying seat 3 and the positioning seat 2, finally the supporting seat 1 and the first pressure bearing seat 8 are sleeved on the pressure applying rod 4, so that the supporting seat 1 abuts against the workpiece 5, at the moment, the pressure applying rod 4 is in threaded connection with the first nut 9, so that the first nut 9 abuts against the first pressure bearing seat 8, the supporting seat 1 can be fixed on the workpiece 5, and along with the continuous rotation of the first nut 9, the pressure applying rod 4 can drive the pressure applying seat 3, the positioning seat 2 and the shaft sleeve 6 to move, and finally the shaft sleeve 6 moves out of a through hole or a blind hole of the workpiece 5; in addition, because the four claws 14 completely abut against the inner side surface of the bearing, the axis of the shaft sleeve 6 is coaxial with the axis of the plane thread rotary table 13, and the axis of the plane nut rotary table is coaxial with the axis of the pressure applying rod 4, so that the shaft sleeve 6 is coaxial with the axis of the pressure applying rod 4, and the pressure applying rod 4 can move along the axis direction of the through hole or the blind hole on the workpiece 5 under the action of the supporting seat 1, thereby avoiding the uneven stress on the shaft sleeve 6 and facilitating the removal of the shaft sleeve 6 from the through hole or the blind hole on the workpiece 5.
The present invention is not described in detail in the prior art.
Claims (4)
1. The utility model provides a shaft sleeve extracting tool which characterized in that: comprises a supporting seat (1), a positioning seat (2), a pressing seat (3) and a pressing rod (4), wherein the supporting seat (1) and the positioning seat (2) are sleeved on the pressing rod (4), the supporting seat (1) is used for abutting against a workpiece (5), a shaft sleeve (6) is arranged in the workpiece (5), a group of first supporting rods (7) are symmetrically arranged on the supporting seat (1), the first supporting rods (7) are connected with a first bearing seat (8), the first bearing seat (8) is sleeved on the pressing rod (4), first nuts (9) are in threaded connection on the pressing rod (4) at corresponding positions on the first bearing seat (8), the positioning seat (2) is used for abutting against the shaft sleeve (6), a group of second supporting rods (10) are symmetrically arranged on the positioning seat (2), and the second supporting rods (10) are connected with a second bearing seat (11), the second pressure bearing seat (11) is sleeved on the pressure applying rod (4), a second nut (12) is connected with the pressure applying rod (4) at a corresponding position on the second pressure bearing seat (11) in a threaded manner, a plane thread rotary table (13) is arranged in the positioning seat (2), the plane thread rotary table (13) is coaxial with the positioning seat (2) and is also sleeved on the pressure applying rod (4), one end of the plane thread rotary table (13) is connected with a clamping jaw (14) in a threaded manner, the clamping jaw (14) penetrates through the positioning seat (2), four clamping jaws (14) are uniformly distributed around the axis of the plane thread rotary table (13), a groove (15) is arranged on the positioning seat (2) at a corresponding position of the clamping jaw (14) along the radial direction, and a guide groove (16) is arranged on the groove (15) between the contact surfaces of the clamping jaw (14) and the groove (15), a guide block (17) is arranged on the jaw (14) between the contact surfaces of the jaw (14) and the groove (15), the guide block (17) is arranged in the guide groove (16), the center of the other end of the plane thread turntable (13) is fixedly connected with a rotating part (18), the rotating part (18) penetrates through the positioning seat (2) and is sleeved on the pressure applying rod (4), a bearing is arranged between the rotating part (18) and the contact surface of the positioning seat (2), a sliding groove (19) is arranged on the pressure applying rod (4) between the positioning seat (2) and the contact surface of the pressure applying rod (4), a sliding block (20) is arranged on the positioning seat (2) between the contact surfaces of the positioning seat (2) and the pressure applying rod (4), the sliding block (20) is arranged in the sliding groove (19), one end of the pressure applying rod (4) can be extended and arranged in the workpiece (5), a pressure applying base (3) is fixedly connected with the end part, a poking disc (21) is arranged in the pressure applying base (3), a poking rod (22) is fixedly connected with the poking disc (21), the poking rod (22) penetrates through the pressure applying rod (4), a rotating valve (23) is arranged at the end part, bearings are uniformly distributed between the poking rod (22) and the contact surface of the pressure applying rod (4), poking blades (24) are uniformly distributed on the poking disc (21), a pressure applying stop lever (25) is arranged on the pressure applying base (3) at the position corresponding to the poking blades (24), the pressure applying stop lever (25) radially penetrates through the pressure applying base (3), a return groove (26) is arranged on the pressure applying stop lever between the pressure applying stop lever and the contact surface of the pressure applying base (3), and a return pressure bearing block (27) is arranged on the pressure applying base (3) between the pressure applying stop lever and the contact surface of the pressure applying base (3), the pressure applying device is characterized in that the return pressure bearing block (27) is arranged in a return groove (26), a return spring (28) is arranged in the return groove (26), one end of the return spring (28) is connected to the pressure applying stop lever and can be arranged in the corresponding position outside the pressure applying seat (3), the end part of the return groove (26) is connected to the other end of the return spring (28).
2. The shaft sleeve dismounting tool according to claim 1, characterized in that: the plane thread rotary table (13) and the rotating part (18) are integrally formed.
3. The shaft sleeve dismounting tool according to claim 1, characterized in that: the pressure applying rod (4) and the pressure applying seat (3) are integrally formed.
4. The shaft sleeve dismounting tool according to claim 1, characterized in that: the supporting seat (1), the pressing seat (3), the pressing rod (4), the positioning seat (2) and the plane thread turntable (13) are coaxial.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010492195.1A CN111571527A (en) | 2020-06-03 | 2020-06-03 | Shaft sleeve dismounting tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010492195.1A CN111571527A (en) | 2020-06-03 | 2020-06-03 | Shaft sleeve dismounting tool |
Publications (1)
Publication Number | Publication Date |
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CN111571527A true CN111571527A (en) | 2020-08-25 |
Family
ID=72122287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010492195.1A Withdrawn CN111571527A (en) | 2020-06-03 | 2020-06-03 | Shaft sleeve dismounting tool |
Country Status (1)
Country | Link |
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CN (1) | CN111571527A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115502930A (en) * | 2022-10-18 | 2022-12-23 | 岚图汽车科技有限公司 | Reducer oil seal dismounting tool and using method |
-
2020
- 2020-06-03 CN CN202010492195.1A patent/CN111571527A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115502930A (en) * | 2022-10-18 | 2022-12-23 | 岚图汽车科技有限公司 | Reducer oil seal dismounting tool and using method |
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WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200825 |
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WW01 | Invention patent application withdrawn after publication |