CN111230803A

CN111230803A - Bearing dismounting device

Info

Publication number: CN111230803A
Application number: CN202010232664.6A
Authority: CN
Inventors: 张富
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-28
Filing date: 2020-03-28
Publication date: 2020-06-05

Abstract

The invention discloses a bearing dismounting device, which is characterized in that: including first puller and second puller, first puller is the tube-shape and embeds the second puller, second puller fixed connection catch bar, the cover is equipped with the location conical body on the catch bar, the location conical body is close to the second puller and arranges first puller in, the catch bar runs through first puller, catch bar cavity sets up and draws the son intercommunication with the second, the built-in rotary rod of catch bar, the one end fixed connection handle of pole socket is arranged in to the rotary rod, the rotary rod is arranged in a pot head of second puller and is equipped with initiative umbellate form gear, initiative umbellate form gear meshing driven umbellate form gear, driven umbellate form gear box is established on promotion threaded rod tip, the promotion threaded rod radially runs through the second puller, promote threaded rod threaded connection internal thread pressure-bearing moving member, internal thread pressure-bearing moving member can follow second puller radial movement, internal thread pressure-bearing moving member tip is equipped with the fixture block, be equipped with the extension piece on the. The invention has the advantages that: the bearing is stressed evenly, and the disassembly and working efficiency are high.

Description

Bearing dismounting device

Technical Field

The invention belongs to the technical field of maintenance tools, and particularly relates to a bearing dismounting device.

Background

The Bearing (Bearing) is an important part in the modern mechanical equipment. Its main function is to support the mechanical rotator, reduce the coefficient of friction (friction coefficient) in its motion process, and guarantee its gyration precision (accuracy), when the bearing breaks down and needs to be changed, according to the difference of bearing kind, the method of dismantling the bearing is also different, to ordinary bearing, need dismantle the shaft earlier, then through punching on the bearing inner race, insert the ejector pin, make the bearing dismantle through strikeing the ejector pin, to the jump ring bearing, need not dismantle the shaft, through strikeing the jump ring on the jump ring bearing, thereby make the jump ring bearing dismantle, above-mentioned two kinds of methods, because the bearing atress is inhomogeneous, can lead to organism or shaft damage, can seriously make the shaft fracture, invisibly increased cost of maintenance, in addition, low working efficiency, be not convenient for dismantle. Therefore, it is important to solve the above problems.

Disclosure of Invention

The bearing dismounting device overcomes the defects of the prior art, and is uniform in bearing stress, convenient to dismount and high in working efficiency.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a bearing dismounting device which characterized in that: the pipe fitting comprises a first puller and a second puller, wherein the first puller is in a cylindrical shape and internally provided with the second puller, one end of the first puller is in an open shape and is provided with a blocking extension at the inner side of the end part, the side part of the first puller is provided with a notch, the other end of the first puller is fixedly connected with an internal thread pipe, the internal thread pipe is in threaded connection with an external thread pipe, the end part of the external thread pipe is provided with a pipe seat, the pipe seat is uniformly distributed with first positioning through holes, the second puller is fixedly connected with a push rod, a positioning conical body is sleeved on the push rod, the positioning conical body is close to the second puller and is arranged in the first puller, a pressure bearing spring is arranged between the second puller and the positioning conical body, a guide groove is arranged on the push rod between the positioning conical body and the contact surface of the push rod, and a bulge is arranged on the positioning conical body between the positioning conical body and the contact surface of the push rod, the arch is arranged in the guide way, the catch bar runs through the first puller, the catch bar with the internal thread pipe with the external thread pipe is coaxial, the catch bar extends to outside the external thread pipe cavity, the catch bar tip is equipped with the pole seat, evenly distributed is equipped with the second positioning hole on the pole seat, the second positioning hole with first positioning hole corresponds each other, the second positioning hole with first positioning hole supplies positioning bolt to pass, catch bar cavity sets up and with the second puller intercommunication, the built-in rotary rod of catch bar, the rotary rod with between the catch bar contact surface the cover is equipped with first bearing on the rotary rod, first bearing evenly distributed, the rotary rod is arranged in the one end fixed connection handle of pole seat, the rotary rod is arranged in a pot head that the second puller is equipped with initiative umbellate form gear, the driving bevel gear is meshed with a driven bevel gear, the driven bevel gear is uniformly distributed by taking the driving bevel gear as the center, the driven bevel gear is sleeved on one end part of a pushing threaded rod, the pushing threaded rod radially penetrates through the second puller, one end of the pushing threaded rod, which is close to the driven bevel gear, is sleeved with a second bearing, the second bearing is fixed on the second puller, the pushing threaded rod is in threaded connection with an internal thread pressure-bearing moving member, a guide stop bar is arranged on the second puller between the internal thread pressure-bearing moving member and a contact surface of the second puller, a bearing groove is arranged on the internal thread pressure-bearing moving member between the internal thread pressure-bearing moving member and the contact surface of the second puller, the bearing groove is matched with the guide stop bar, and the internal thread pressure-bearing moving member can radially move along the second puller, the end part of the internal thread pressure-bearing moving piece is provided with a clamping block, and the clamping block is provided with an extending block.

Further, the pushing threaded rod, the clamping block and the extending block are integrally formed.

Further, the first puller is in contact with the machine body, the machine body is used for a wheel shaft to pass through, and a bearing to be taken is installed on the machine body between the wheel shaft and the contact surface of the machine body.

Furthermore, the bearing to be taken is a snap spring bearing, the bearing to be taken is sleeved on the wheel shaft, the first puller can be clamped on the bearing to be taken through the blocking extension, and the corresponding second puller abuts against the wheel shaft.

Furthermore, the bearing to be taken is a common bearing, the bearing to be taken is not sleeved on the wheel shaft, the second puller penetrates through the bearing to be taken and abuts against the outer ring of the bearing to be taken through the extension block, and the corresponding first puller abuts against the machine body.

Compared with the prior art, the invention has the advantages that: the bearing to be taken can be stressed uniformly, the bearing is convenient to disassemble, the working efficiency is improved, and meanwhile, the machine body or the wheel shaft cannot be damaged; the locating conical body can meet the requirements of bearings to be taken of different diameters while locating, and the practicability of the bearing dismounting device is improved.

Drawings

FIG. 1 is a schematic front view of a bearing removing apparatus according to the present invention;

FIG. 2 is a front view showing a schematic structure of a bearing dismounting device of the present invention, in which a to-be-taken bearing of a pulley shaft is dismounted by a first puller;

FIG. 3 is a front view showing a schematic structure of a bearing dismounting device of the present invention, in which a bearing to be taken out without an axle is dismounted by a second puller;

FIG. 4 is a schematic front sectional view of a bearing dismounting device of the present invention;

FIG. 5 is an enlarged view of the bearing-dismounting device of FIG. 4 in the direction A;

FIG. 6 is a schematic left side view of a bearing dismounting device of the present invention;

FIG. 7 is a schematic structural view of a second puller of the bearing dismounting device of the present invention;

fig. 8 is a schematic perspective exploded view of the pushing threaded rod and the internal thread pressure-bearing moving member of the second puller of the bearing dismounting device of the present invention.

In the figure, 1, a first puller, 2, a second puller, 3, a blocking extension, 4, a notch, 5, an internal threaded pipe, 6, an external threaded pipe, 7, a pipe seat, 8, a first positioning through hole, 9, a pushing rod, 10, a positioning conical body, 11, a pressure-bearing spring, 12, a guide groove, 13, a bulge, 14, a rod seat, 15, a second positioning through hole, 16, a positioning bolt, 17, a rotating rod, 18, a first bearing, 19, a handle, 20, a driving umbrella-type gear, 21, a driven umbrella-type gear, 22, a pushing threaded rod, 23, a second bearing, 24, an internal thread pressure-bearing moving piece, 25, a guiding stop bar, 26, a pressure-bearing groove, 27, a clamping block, 28, an extending block, 29, a machine body, 30, a wheel shaft and 31, a bearing to-be-taken.

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 8, 1, a first puller, 2, a second puller, 3, a stopper, 4, a notch, 5, an internal threaded pipe, 6, an external threaded pipe, 7, a pipe seat, 8, a first positioning through hole, 9, a push rod, 10, a positioning conical body, 11, a pressure-bearing spring, 12, a guide groove, 13, a protrusion, 14, a rod seat, 15, a second positioning through hole, 16, a positioning bolt, 17, a rotating rod, 18, a first bearing, 19, a handle, 20, a driving bevel gear, 21, a driven bevel gear, 22, a push threaded rod, 23, a second bearing, 24, an internal thread pressure-bearing moving piece, 25, a guide stop bar, 26, a pressure-bearing groove, 27, 28, an extension block, 29, a machine body, 30, a wheel shaft, 31, and a bearing to-be-taken.

The utility model provides a bearing dismounting device which characterized in that: comprises a first puller 1 and a second puller 2, the first puller 1 is in a cylindrical shape and is internally provided with the second puller 2, one end of the first puller 1 is in an open shape and is provided with a baffle extension 3 at the inner side of the end part, the side part of the first puller 1 is provided with a notch 4, the other end of the first puller 1 is fixedly connected with an internal thread pipe 5, the internal thread pipe 5 is in threaded connection with an external thread pipe 6, the end part of the external thread pipe 6 is provided with a pipe seat 7, the pipe seat 7 is uniformly distributed with first positioning through holes 8, the second puller 2 is fixedly connected with a push rod 9, the push rod 9 is sleeved with a positioning conical body 10, the positioning conical body 10 is close to the second puller 2 and is arranged in the first puller 1, a pressure bearing spring 11 is arranged between the second puller 2 and the positioning conical body 10, a guide groove 12 is arranged on the push rod 9 between the contact surfaces of the positioning conical body 10 and the push rod 9, a bulge 13 is arranged on the positioning conical body 10 between the contact surfaces of, the bulge 13 is arranged in the guide groove 12, the push rod 9 penetrates through the first puller 1, the push rod 9 is coaxial with the internal threaded pipe 5 and the external threaded pipe 6, the push rod 9 extends out of the cavity of the external threaded pipe 6, the end part of the push rod 9 is provided with a rod seat 14, second positioning through holes 15 are uniformly distributed on the rod seat 14, the second positioning through holes 15 correspond to the first positioning through holes 8, the second positioning through holes 15 and the first positioning through holes 8 are used for allowing positioning bolts 16 to pass through, the push rod 9 is arranged in a hollow manner and is communicated with the second puller 2, a rotary rod 17 is arranged in the push rod 9, a first bearing 18 is sleeved on the rotary rod 17 between the contact surfaces of the rotary rod 17 and the push rod 9, the first bearing 18 is uniformly distributed, the rotary rod 17 is arranged at one end of the rod seat 14 and fixedly connected with a handle 19, one end of the rotary rod 17 arranged at the second puller 2 is sleeved with a driving umbrella-type gear 20, the driving, the driven umbrella-type gear 21 is uniformly distributed by taking the driving umbrella-type gear 20 as a center, the driven umbrella-type gear 21 is sleeved on one end part of a pushing threaded rod 22, the pushing threaded rod 22 radially penetrates through the second puller 2, one end, close to the driven umbrella-type gear 21, of the pushing threaded rod 22 is sleeved with a second bearing 23, the second bearing 23 is fixed on the second puller 2, the pushing threaded rod 22 is in threaded connection with an internal thread pressure-bearing moving piece 24, a guide stop strip 25 is arranged on the second puller 2 between the internal thread pressure-bearing moving piece 24 and a contact surface of the second puller 2, a bearing groove 26 is formed in the internal thread pressure-bearing moving piece 24 between the internal thread pressure-bearing moving piece 24 and the contact surface of the second puller 2, the bearing groove 26 is matched with the guide stop strip 25, the internal thread pressure-bearing moving piece 24 can radially move along the second puller 2, a fixture.

The push screw rod 22, the latch 27 and the extension block 28 are integrally formed.

The first puller 1 is contacted with a machine body 29, a wheel shaft 30 passes through the machine body 29, and a bearing 31 to be taken out is arranged on the machine body 29 between the contact surfaces of the wheel shaft 30 and the machine body 29.

The bearing 31 to be taken is a clamp spring bearing, the bearing 31 to be taken is sleeved on the wheel shaft 30, the first puller 1 can be clamped on the bearing 31 to be taken through the blocking extension 3, and the corresponding second puller 2 abuts on the wheel shaft 30.

The bearing 31 to be taken is a common bearing, the bearing 31 to be taken is not sleeved on the wheel shaft 30, the second puller 2 penetrates through the bearing 31 to be taken and abuts against the outer ring of the bearing 31 to be taken through the extension block 28, and the corresponding first puller 1 abuts against the machine body 29.

According to different bearing types, a first puller 1 or a second puller 2 is selected, when a bearing 31 to be taken is a snap spring bearing, a pipe seat 7 and a rod seat 14 are fixedly connected together through a positioning bolt 16, then the first puller 1 is clamped on the snap spring bearing through a notch 4, the second puller 2 is correspondingly pressed against a wheel shaft 30 under stress, the pipe seat 7 is rotated, the second puller 2 is pressed against the wheel shaft 30 under stress, so that the pipe seat 7 drives an external threaded pipe 6 to rotate and not move along the axis of the pipe seat 7, the corresponding internal threaded pipe 5 is pressed to drive the first puller 1 to move towards the pipe seat 7, and the bearing 31 to be taken can be detached from a machine body 29 by the first puller 1; when the bearing 31 to be taken is a common bearing, the wheel shaft 30 needs to be detached, the position of the external threaded pipe 6 on the internal threaded pipe 5 is adjusted, the push rod 9 is convenient to move left and right, then the first puller 1 is abutted against the machine body 29, the rod seat 14 is pressed, the positioning conical body 10 is clamped on the inner ring of the bearing 31 to be taken, the second puller 2 is convenient to be coaxial with the bearing 31 to be taken, the pipe seat 7 is continuously pressed, the second puller 2 penetrates through the bearing 31 to be taken, then the handle 19 is rotated, the handle 19 drives the rotary rod 17, the rotary rod 17 drives the driving bevel gear 20, the driving bevel gear 20 is meshed with the driven bevel gear 21, the driven bevel gear 21 drives the push threaded rod 22, the threaded rod 22 drives the internal thread pressure-bearing moving piece 24, the internal thread pressure-bearing moving piece 24 moves along the radial direction of the second puller 2, and finally the extension block 28 can be abutted against the outer ring of the bearing 31 to be taken, at this time, the tube seat 7 is rotated to make the tube seat 7 abut against the rod seat 14, the first puller 1 abuts against the machine body 29 under force, the tube seat 7 drives the second puller 2 to move under force, and the second puller 2 can detach the bearing 31 to be taken from the machine body 29.

Two kinds of dismantlement modes, the even atress of bearing 31 is waited to make to get, and convenient to detach has improved work efficiency, can not lead to organism 29 or shaft 30 damage simultaneously.

The positioning conical body 10 can meet the requirements of bearings 31 with different diameters to be taken while realizing positioning, and the practicability of the bearing dismounting device is improved.

The present invention is not described in detail in the prior art.

Claims

1. The utility model provides a bearing dismounting device which characterized in that: comprises a first puller (1) and a second puller (2), wherein the first puller (1) is in a cylindrical shape and is internally provided with the second puller (2), one end of the first puller (1) is in an open shape, a baffle extension (3) is arranged on the inner side of the end part, a notch (4) is arranged on the side part of the first puller (1), the other end of the first puller (1) is fixedly connected with an internal thread pipe (5), the internal thread pipe (5) is in threaded connection with an external thread pipe (6), a pipe seat (7) is arranged on the end part of the external thread pipe (6), first positioning through holes (8) are uniformly distributed on the pipe seat (7), the second puller (2) is fixedly connected with a push rod (9), a positioning conical body (10) is sleeved on the push rod (9), the positioning conical body (10) is close to the second puller (2) and is arranged in the first puller (1), the second puller (2) and a pressure-bearing spring (11) are arranged between the positioning conical bodies (10), a guide groove (12) is arranged on the pushing rod (9) between contact surfaces of the positioning conical bodies (10) and the pushing rod (9), a bulge (13) is arranged on the positioning conical body (10) between the contact surfaces of the positioning conical bodies (10) and the pushing rod (9), the bulge (13) is arranged in the guide groove (12), the pushing rod (9) penetrates through the first puller (1), the pushing rod (9) is coaxial with the internal thread pipe (5) and the external thread pipe (6), the pushing rod (9) extends to the outside of the cavity of the external thread pipe (6), a rod seat (14) is arranged at the end part of the pushing rod (9), second positioning through holes (15) are uniformly distributed on the rod seat (14), and the second positioning through holes (15) correspond to the first positioning through holes (8), second positioning hole (15) with first positioning hole (8) supply positioning bolt (16) to pass, catch bar (9) cavity set up and with the second draws son (2) intercommunication, catch bar (9) embeds rotary rod (17), rotary rod (17) with between catch bar (9) the cover is equipped with first bearing (18) on rotary rod (17) between the contact surface, first bearing (18) evenly distributed, rotary rod (17) are arranged in one end fixed connection handle (19) of pole socket (14), rotary rod (17) are arranged in a pot head of second drawing son (2) is equipped with initiative umbellate gear (20), initiative umbellate gear (20) mesh driven umbellate gear (21), driven umbellate gear (21) with initiative umbellate gear (20) are central evenly distributed, driven umbellate gear (21) cover is established on a promotion threaded rod (22) an end, the push threaded rod (22) radially penetrates through the second puller (2), one end, close to the driven umbrella-shaped gear (21), of the push threaded rod (22) is sleeved with a second bearing (23), the second bearing (23) is fixed on the second puller (2), the push threaded rod (22) is in threaded connection with an internal thread pressure-bearing moving piece (24), a guide stop bar (25) is arranged on the second puller (2) between the internal thread pressure-bearing moving piece (24) and a contact surface of the second puller (2), a pressure-bearing groove (26) is arranged on the internal thread pressure-bearing moving piece (24) between the internal thread pressure-bearing moving piece (24) and the contact surface of the second puller (2), the pressure-bearing groove (26) is matched with the guide stop bar (25), and the internal thread pressure-bearing moving piece (24) can radially move along the second puller (2), the end part of the internal thread pressure-bearing moving piece (24) is provided with a clamping block (27), and the clamping block (27) is provided with an extending block (28).

2. A bearing removing device according to claim 1, wherein: the push threaded rod (22), the clamping block (27) and the extension block (28) are integrally formed.

3. A bearing removing device according to claim 1, wherein: the first puller (1) is in contact with a machine body (29), a wheel shaft (30) penetrates through the machine body (29), and a bearing (31) to be taken is installed on the machine body (29) between the contact surfaces of the wheel shaft (30) and the machine body (29).

4. A bearing removing device according to claim 3, wherein: the bearing (31) to be taken is a clamp spring bearing, the bearing (31) to be taken is sleeved on the wheel shaft (30), the first puller (1) can be clamped on the bearing (31) to be taken through the blocking extension (3), and the corresponding second puller (2) abuts against the wheel shaft (30).

5. A bearing removing device according to claim 3, wherein: the bearing (31) to be taken is a common bearing, the bearing (31) to be taken is not sleeved on the wheel shaft (30), the second puller (2) penetrates through the bearing (31) to be taken and abuts against the outer ring of the bearing (31) to be taken through the extending block (28), and the corresponding first puller (1) abuts against the machine body (29).