CN211220517U

CN211220517U - Dismounting device

Info

Publication number: CN211220517U
Application number: CN201922429594.9U
Authority: CN
Inventors: 郭静; 刘利军; 郭涛; 刘小鹏
Original assignee: Sany Petroleum Intelligent Equipment Co Ltd
Current assignee: Sany Petroleum Intelligent Equipment Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-11
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a dismouting device relates to bearing installation and dismantles technical field. This dismouting device includes coupling assembling, the transmission lead screw, support and hold the subassembly, coupling assembling is used for can dismantling with treating the installation main part and is connected, transmission lead screw threaded connection is in coupling assembling, and be constructed as can move along the axial direction of self when rotating for coupling assembling, the one end of transmission lead screw is the rotation link, support and hold the subassembly and rotationally connect in the rotation link, and be used for pushing down the inner spline that holds the gear shaft, the inner circle of bearing or the outer lane of bearing at the transmission lead screw. The dismounting device for the bearing has the characteristics of stable dismounting, difficult damage to the bearing and the gear shaft, and higher dismounting efficiency and precision.

Description

Dismounting device

Technical Field

The utility model relates to a bearing installation dismantles technical field, particularly, relates to a dismouting device that bearing was used.

Background

Part of the shaft is mounted in a rotating position by a bearing, for example, a pinion in the gear section of the frac pump is mounted to the gearbox after the bearing is installed. Moreover, the inner ring and the outer ring of the existing bearing are installed in a transition fit mode, the bearing is influenced by the structure, and the assembling and disassembling processes are mostly knocked manually.

However, the knocking assembly has the problems that the bearing and the spline of the gear shaft are easy to damage, the bearing is easy to be installed in the bearing seat in a skew mode, the matching surface of the bearing seat is damaged, the matching precision is reduced, the assembling efficiency is low, and the labor intensity of workers is high.

In view of the above, it is important to develop a mounting and dismounting device capable of solving the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dismouting device is used for dismouting bearing and pivot, and it has the dismouting stable, not fragile bearing and gear shaft, and the higher characteristics of dismouting efficiency and precision.

The utility model provides a technical scheme:

in a first aspect, an embodiment of the present invention provides a dismounting device, which includes a connecting assembly, a driving screw, and a supporting assembly; the connecting assembly is used for being detachably connected with a main body to be installed, and the transmission screw rod is connected to the connecting assembly in a threaded mode and is configured to move along the axial direction of the transmission screw rod when rotating relative to the connecting assembly; one end of the transmission screw rod is a rotary connecting end, and the abutting component is rotatably connected to the rotary connecting end and used for pressing and holding an internal spline of the gear shaft, an inner ring of the bearing or an outer ring of the bearing under the pushing of the transmission screw rod.

With reference to the first aspect, in a first implementation manner of the first aspect, the abutting assembly includes an abutting housing and a first thrust bearing; the abutting shell is provided with a rotating connecting space and a first connecting hole which are communicated, the rotating connecting end extends into the rotating connecting space through the first connecting hole, the first thrust bearing is installed in the rotating connecting space, one side of the first thrust bearing abuts against the inner wall of the rotating connecting space, the other side of the first thrust bearing is connected with the connecting end of the transmission screw rod, and the transmission screw rod presses and holds the abutting shell through the first thrust bearing.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, the abutting assembly further includes a rotation connection ring and a second thrust bearing, which are installed in the rotation connection space; the first thrust bearing, the rotating connecting ring and the second thrust bearing are coaxially arranged, two ends of the rotating connecting ring are respectively abutted against the first thrust bearing and the second thrust bearing, and the rotating connecting end is connected to the inner wall of the rotating connecting ring.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, a second connection hole is further formed in the abutting shell, and the second connection hole corresponds to the first connection hole; the abutting assembly further comprises an abutting head, the abutting head is detachably connected with the abutting shell, is located in the second connecting hole, and presses and holds the first thrust bearing, the rotating connecting ring and the second thrust bearing in the rotating connecting space.

With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the abutting assembly further includes a connecting member, the abutting housing is disposed in a cylindrical shape, and the first connecting hole and the second connecting hole are located at two ends of the abutting housing respectively; the connecting piece is detachably connected to the side face of the abutting shell and detachably connected with the abutting head so as to detachably connect the abutting head with the second connecting hole.

With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the transmission screw rod is disposed in a cylindrical shape, and the abutting assembly further includes a connecting rod; one end of the connecting rod extends into the rotating connecting space through the first connecting hole, is fixedly connected to the abutting head, and extends to one end, far away from the rotating connecting end, of the transmission screw rod through the first connecting hole.

With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the abutting assembly further includes a first abutting piece; the first abutting part comprises a first abutting connecting part and a first abutting part, and the first abutting part is arranged in a circular plate shape and used for pressing and holding the end face of the gear shaft; the first abutting connection part is arranged in a ring shape and connected to the center of one side of the first abutting part, and the abutting head is detachably connected to the inner wall of the first abutting connection part.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a seventh implementation manner of the first aspect, the abutting assembly further includes a second abutting piece; the second abutting part comprises a second abutting connecting part and a second abutting part, the second abutting connecting part is arranged in a circular plate shape, and the abutting head is detachably connected to the center of the second abutting connecting part; the second abutting portion is a circular ring, is connected to one side of the second abutting connection portion, and is used for pressing and holding the outer ring of the bearing.

With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, a rotation connection portion is convexly disposed on an end face of one end, away from the first connection hole, of the abutting head, and the second abutting connection portion is in threaded connection with the rotation connection portion and abuts against an end face, away from the second connection hole, of the abutting head.

With reference to the first aspect and the foregoing implementation manner, in a ninth implementation manner of the first aspect, the abutting assembly further includes a third abutting piece; the third abutting part comprises a third abutting connecting part and a third abutting part, and the third abutting part is arranged in a circular plate shape and is used for pressing and holding the inner ring of the bearing; the third abutting connection part is arranged in a circular ring shape and connected to the center of one side of the third abutting part, and the abutting head is detachably connected to the inner wall of the third abutting connection part.

Compared with the prior art, the embodiment of the utility model provides a dismouting device that bearing was used includes for prior art's beneficial effect:

this dismouting device supports and holds the subassembly including coupling assembling, transmission lead screw, wherein, coupling assembling is used for can dismantling with the main part of waiting to install and is connected in coupling assembling, and transmission lead screw threaded connection is in coupling assembling to the transmission lead screw is constructed and can moves along self axial direction when rotating for coupling assembling. And one end of the transmission screw rod is a rotating connecting end, the abutting component is rotatably connected to the rotating connecting end and is used for pressing and holding an internal spline of the gear shaft, an inner ring of the bearing or an outer ring of the bearing under the pushing of the transmission screw rod so as to install the bearing or the rotating shaft in the main body to be installed or dismantle the bearing or the rotating shaft from the main body to be installed. Thus, when the dismounting operation is carried out, the main body connecting assembly to be mounted and the transmission screw rod in threaded connection with the connecting assembly are mounted to stably push the abutting assembly, so that the stability of the pressing action of the abutting assembly is improved, the abutting assembly is guaranteed to be stably pushed, the dismounting efficiency and the stability are improved, the probability of damaging a bearing or a rotating shaft is reduced, the abutting assembly connected to one end of the transmission screw rod is rotated to press the bearing or the rotating shaft, the dismounting stability is further improved, and the dismounting precision is guaranteed.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of a dismounting device provided in an embodiment of the present invention.

Fig. 2 is a schematic sectional structure view of the dismounting device provided in the embodiment of the present invention.

Fig. 3 is a partial structural view at III in fig. 2.

Fig. 4 is a schematic structural view of the dismounting device according to the embodiment of the present invention when a rotating shaft with a bearing is installed.

Fig. 5 is a schematic structural view of the first supporting member of the dismounting device according to the embodiment of the present invention.

Fig. 6 is a schematic structural diagram of the dismounting device according to the embodiment of the present invention when the bearing at the other end of the rotating shaft is installed.

Fig. 7 is a schematic cross-sectional view of a second supporting member of the dismounting device according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of the dismounting device according to the embodiment of the present invention when the bearing is dismounted from the gear box.

Fig. 9 is a schematic structural view of a third supporting member of the dismounting device according to the embodiment of the present invention.

Fig. 10 is a schematic structural view of a dismounting device according to an embodiment of the present invention when a rotating shaft is dismounted from a gear box.

Icon: 10-a dismounting device; 12-a connecting assembly; 13-a drive screw; 131-a handle; 132-a rotating connection end; 15-a holding assembly; 151-holding the housing; 1512-rotational connection space; 1513-first connection hole; 1515-second connection hole; 152-a first thrust bearing; 153-rotating coupling ring; 154-a second thrust bearing; 155-abutment head; 1551-rotating the connection; 1552-connecting piece; 156-connecting rod; 157-a first abutment; 1571-a first abutment connection; 1572-first holding part; 158-a second abutment; 1581 — a second connection part; 1582A second abutting portion; 159-a third abutment; 1591-third butting connection part; 1592-third holding part; 910-a bearing; 920-a rotating shaft; 930-main body to be mounted.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally used to place the products of the present invention, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or component 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. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following describes in detail embodiments of the present invention with reference to the accompanying drawings.

Example (b):

referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of a dismounting device 10 according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional structure diagram of the dismounting device 10 according to an embodiment of the present invention. Fig. 3 is a partial structural view at III in fig. 2.

The embodiment of the utility model provides a dismouting device 10, this dismouting device 10 are used for dismouting bearing 910 and pivot 920, and it has the dismouting stable, not fragile bearing 910 and gear shaft, and the higher characteristics of dismouting efficiency and precision.

The structural composition, the operation principle and the advantageous effects of the dismounting device 10 provided by the embodiment of the present invention will be described in detail below.

The dismounting device 10 comprises a connecting assembly 12, a transmission screw 13 and a holding assembly 15, wherein the connecting assembly 12 is used for being detachably connected with the main body 930 to be mounted, the transmission screw 13 is in threaded connection with the connecting assembly 12, and the transmission screw 13 is configured to be capable of moving along the axial direction of the transmission screw 13 when rotating relative to the connecting assembly 12, in other words, the transmission screw 13 moves along the axis of the transmission screw 13 under the action of the respective and matching threads of the transmission screw 13 and the connecting assembly 12 when rotating relative to the connecting assembly 12.

And one end of the driving screw 13 is a rotating connection end 132, the abutting assembly 15 is rotatably connected to the rotating connection end 132 and is used for pressing and holding the internal spline of the gear shaft, the inner ring of the bearing 910 or the outer ring of the bearing 910 under the pushing of the driving screw 13, so as to mount the bearing 910 or the rotating shaft 920 on the to-be-mounted main body 930 or dismount the to-be-mounted main body 930. In other words, when the abutting assembly 15 presses the internal spline of the gear shaft, the inner ring of the bearing 910 or the outer ring of the bearing 910, the driving screw 13 moves along its own axis to push the abutting assembly 15, and the abutting assembly 15 is rotatably connected to the rotating connection end 132, so that when the driving screw 13 pushes the abutting assembly 15 to press, the abutting assembly 15 does not rotate with the driving screw 13.

Thus, during the dismounting operation, the abutting assembly 15 is stably pushed by the connecting assembly 12 mounted on the main body 930 to be mounted and the driving screw 13 screwed to the connecting assembly 12, so as to improve the stability of the pressing action of the abutting assembly 15, ensure the stable pushing of the abutting assembly 15, improve the dismounting efficiency and stability, reduce the probability of damaging the bearing 910 or the rotating shaft 920, and further improve the dismounting stability and ensure the dismounting precision by rotating the abutting assembly 15 connected to one end of the driving screw 13 to press the bearing 910 or the rotating shaft 920.

Referring to fig. 2 and fig. 3, the supporting assembly 15 may include a supporting housing 151 and a first thrust bearing 152, a rotating connection space 1512 is disposed in the supporting housing 151, and a first connection hole 1513 communicating with the rotating connection space 1512 is disposed on the supporting housing 151.

The rotating connection end 132 extends into the rotating connection space 1512 through the first connection hole 1513, the first thrust bearing 152 is installed in the rotating connection space 1512, one side of the first thrust bearing 152 abuts against the inner wall of the rotating connection space 1512, the other side of the first thrust bearing 152 is connected to the connection end of the transmission screw 13, and the transmission screw 13 presses against the housing 151 through the first thrust bearing 152. In other words, one race (not shown) of the first thrust bearing 152 abuts against the inner wall of the rotational connection space 1512, and the other race abuts against the rotational connection end 132, and when the driving screw 13 pushes the abutting assembly 15, the end surface of the rotational connection end 132 presses against one race of the first thrust bearing 152, so that when the driving screw 13 pushes the abutting assembly 15, the abutting assembly 15 does not rotate with the driving screw 13.

Further, the abutting assembly 15 may further include a rotation connecting ring 153 and a second thrust bearing 154, the rotation connecting ring 153 and the second thrust bearing 154 are both installed in the rotation connecting space 1512, and the first thrust bearing 152, the rotation connecting ring 153 and the second thrust bearing 154 are coaxially disposed, and both ends of the rotation connecting ring 153 abut against the first thrust bearing 152 and the second thrust bearing 154, respectively, and the rotation connecting end 132 is connected to the inner wall of the rotation connecting ring 153. Or, the rotation connection ring 153 is disposed between the first thrust bearing 152 and the second thrust bearing 154 to support the first thrust bearing 152 and the second thrust bearing 154 against the inner wall of the rotation connection space 1512, and the first thrust bearing 152, the rotation connection ring 153 and the second thrust bearing 154 are disposed coaxially, and the rotation connection end 132 extends into the rotation connection space 1512 from the first connection hole 1513 to be connected with the inner wall of the rotation connection ring 153, so as to further improve the stability of the rotation connection of the transmission screw 13 to the support assembly 15.

It should be noted that the rotation connection end 132 may be slidably connected in the rotation connection ring 153, that is, the rotation connection end 132 may slide along the inner wall of the rotation connection ring 153, or the rotation connection end 132 may be fixedly connected to the rotation connection end 132.

Furthermore, the abutting housing 151 may further have a second connection hole 1515 formed thereon, the second connection hole 1515 corresponds to the first connection hole 1513, and the abutting assembly 15 may further include an abutting head 155, the abutting head 155 is detachably connected to the abutting housing 151 and located in the second connection hole 1515, and presses the first thrust bearing 152, the rotation connection ring 153, and the second thrust bearing 154 in the rotation connection space 1512. Or, the abutting head 155 is located in the second connection hole 1515 to form a rotation connection space 1512 together with the inner wall of the abutting housing 151, and during assembly, the second thrust bearing 154 may be placed in the abutting housing 151, the abutting housing 151 is sleeved on the transmission screw 13, so that the transmission screw 13 is located in the first connection hole 1513, the rotation connection ring 153 is located in the abutting housing 151, the first thrust bearing 152 is placed, and finally the abutting head 155 is connected to the second connection hole 1515 to press and hold the first thrust bearing 152, the rotation connection ring 153, and the first thrust bearing 152 in the rotation connection space 1512.

It should be noted that the abutting assembly 15 may further include a connecting member 1552, the abutting housing 151 may be disposed in a cylindrical shape, the first connecting hole 1513 and the second connecting hole 1515 are respectively located at two ends of the abutting housing 151, the connecting member 1552 is detachably connected to a side surface of the abutting housing 151 and detachably connected to the abutting head 155 so as to detachably connect the abutting head 155 to the second connecting hole 1515, or the connecting member 1552 is detachably connected to an outer side surface of the abutting housing 151 and passes through the abutting housing 151 so as to be connected to the abutting head 155, so as to connect the abutting head 155 to an inner wall of the second connecting hole 1515. This manner of connecting the abutment heads 155 is simple and easy to assemble.

Further, the driving screw 13 may be disposed in a cylindrical shape, and the abutting assembly 15 may further include a connecting rod 156, one end of the connecting rod 156 extends into the rotating connection space 1512 through the first connection hole 1513 and is fixedly connected to the abutting head 155, and the first connection hole 1513 at the other end of the connecting rod 156 extends to one end of the driving screw 13 far away from the rotating connection end 132. So that the abutting head 155 can be rotated by the end of the driving screw 13 far from the rotation connecting end 132 to adjust the abutting position, etc.

Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of the dismounting device 10 according to the embodiment of the present invention when the rotating shaft 920 with the bearing 910 is installed. Fig. 5 is a schematic structural diagram of the first abutting member 157 of the dismounting device 10 according to the embodiment of the present invention.

The abutting assembly 15 may further include a first abutting member 157, the first abutting member 157 includes a first abutting connection portion 1571 and a first abutting portion 1572, the first abutting portion 1572 is disposed in a circular plate shape and is used for pressing and holding an end surface of the gear shaft, the first abutting connection portion 1571 is disposed in a circular ring shape and is connected to a center of one side of the first abutting portion 1572, and the abutting head 155 is detachably connected to an inner wall of the first abutting connection portion 1571.

In this embodiment, the main body 930 to be mounted is a gear box, when the bearing 910 and the rotating shaft 920 are mounted on the gear box, the bearing 910 at one end of the rotating shaft 920 is previously assembled on the rotating shaft 920, and when the rotating shaft 920 with the bearing 910 is mounted on the gear box, the connecting assembly 12 is first mounted on the gear box, the supporting head 155 is aligned with the mounting position, the first supporting connection portion 1571 of the first supporting member 157 is connected to the supporting head 155, when the first supporting connection portion 1571 and the supporting head 155 are connected, the supporting head 155 is fixed by the connecting rod 156, the rotation of the supporting head 155 is avoided, so as to connect the first supporting connection portion 1571 and the supporting head 155, the first supporting connection portion 1571 is aligned with the inner spline hole at one end of the rotating shaft 920 and extends into the inner spline hole 157, the first supporting portion 2 is opposite to one end face of the rotating shaft 920, the above-mentioned transmission screw 13 is rotated, so that the transmission screw 13 pushes the first thrust bearing 152, so that the first abutting portion 1572 presses the rotating shaft 920, and the bearing 910 on the rotating shaft 920 is pressed on the gear box.

It should be noted that, a rotating connection portion 1551 is convexly disposed on an end surface of the end of the abutting head 155 away from the second connection hole 1515, the first abutting connection portion 1571 is in threaded connection with the rotating connection portion 1551 and abuts against an end surface of the abutting head 155 away from the second connection hole 1515, and in addition, a rotating handle 131 may be further disposed on the transmission screw 13, so that a user can rotate the transmission screw 13.

Referring to fig. 6 and 7, fig. 6 is a schematic structural diagram of the dismounting device 10 according to the embodiment of the present invention when the bearing 910 at the other end of the rotating shaft 920 is installed. Fig. 7 is a schematic cross-sectional view of a second abutting member 158 of the dismounting device 10 according to an embodiment of the present invention.

The abutting assembly 15 may further include a second abutting member 158, the second abutting member 158 includes a second abutting connection portion 1581 and a second abutting portion 1582, wherein the second abutting connection portion 1581 is disposed in a circular plate shape, the abutting head 155 is detachably connected to the center of the second abutting connection portion 1581, and the second abutting portion 1582 is a circular ring and is connected to one side of the second abutting connection portion 1581, and is configured to press an outer ring of the bearing 910 so as to avoid the rotating shaft 920 connected to the inner ring of the bearing 910.

When the bearing 910 is installed on one end of the rotating shaft 920, the bearing 910 on the other end of the rotating shaft 920 is already assembled on the gear box, and when the bearing 910 is installed on the rotating shaft 920, the connecting component 12 is installed on the gear box first, the retaining head 155 is aligned with the installation position, and the second abutting connection part 1581 of the second abutting member 158 is connected to the abutting head 155, when the second abutting connection part 1581 and the abutting head 155 are connected, the abutting head 155 can be fixed by the connecting rod 156 to prevent the abutting head 155 from rotating, so as to connect the second abutting connection part 1581 and the abutting head 155, the second abutting connection part 1581 is aligned with the hole of the internal spline at one end of the rotating shaft 920, the second abutting part 1582 is opposite to the inner ring of the bearing 910, the driving screw 13 is rotated, so that the driving screw 13 pushes the first thrust bearing 152, so that the second abutting portion 1582 presses the inner ring of the bearing 910, so as to press-fit the bearing 910 on the gear box.

It should be noted that the second abutting connection portion 1581 can be in threaded connection with the rotating connection portion 1551, and abuts against an end surface of the abutting head 155 away from the second connection hole 1515.

Referring to fig. 8 and 9, fig. 8 is a schematic structural view of the dismounting device 10 according to the embodiment of the present invention when the bearing 910 is dismounted from the gearbox. Fig. 9 is a schematic structural view of a third abutting member 159 of the dismounting device 10 according to the embodiment of the present invention.

The supporting assembly 15 may further include a third supporting member 159, the third supporting member 159 includes a third supporting connection part 1591 and a third supporting part 1592, wherein the third supporting part 1592 is disposed in a circular plate shape and is configured to press and hold an inner ring of the bearing 910 to avoid a ring (not shown) of the bearing 910, which is located at an outer ring of the bearing 910 and is configured to fix the bearing 910, the third supporting connection part 1591 is disposed in a circular ring shape and is connected to a center of one side of the third supporting part 1592, and the supporting head 155 is detachably connected to an inner wall of the third supporting connection part 1591.

When the bearing 910 is detached from the gearbox, the connecting assembly 12 is first installed on the gearbox, the driving screw 13 enters the gearbox, the abutting head 155 is aligned with the installation position, the third abutting connection part 1591 of the third abutting member 159 is connected to the abutting head 155, when the third abutting connection part 1591 and the abutting head 155 are connected, the abutting head 155 is fixed by the connecting rod 156 to prevent the abutting head 155 from rotating, so as to connect the third abutting connection part 1591 and the abutting head 155, the third abutting connection part 1591 is aligned with the inner ring of the bearing 910, the third abutting part 1592 is opposite to the inner ring of the bearing 910, and the driving screw 13 is rotated to enable the driving screw 13 to push the first thrust bearing 152, so that the third abutting part 1592 presses the inner ring of the bearing 910, so as to press the bearing 910 out of the gearbox.

It should be noted that the third abutting connection part 1591 can be in threaded connection with the rotating connection part 1551 and abut against an end surface of the abutting head 155 away from the second connection hole 1515.

Referring to fig. 4 and fig. 6 in turn, when the rotating shaft 920 and the bearing 910 are installed on the gear box, the first abutting member 157 is assembled on the abutting head 155, the connecting assembly 12 is installed on the gear box first, the abutting head 155 is aligned with the installation position, the first abutting portion 1572 is opposite to one end face of the rotating shaft 920, the driving screw 13 is rotated, so that the driving screw 13 pushes the first thrust bearing 152, and further, the first abutting 1572 presses the rotating shaft 920, so that the bearing 910 on the rotating shaft 920 is pressed on the gear box;

and then the bearing 910 at the other end of the rotating shaft 920 is assembled, the connecting assembly 12 is installed at a corresponding position on the gear box, the second abutting member 158 is connected to the abutting head 155, the abutting head 155 is aligned with the installation position, the second abutting portion 1582 is opposite to the inner ring of the bearing 910, and the transmission screw 13 is rotated, so that the transmission screw 13 pushes the first thrust bearing 152, and further the second abutting portion 1582 presses the inner ring of the bearing 910, so that the bearing 910 is pressed on the gear box. Thereby completing the installation of the rotating shaft 920 and the bearing 910.

Referring to fig. 10 and fig. 8 in turn, fig. 10 is a schematic structural view of the dismounting device 10 according to the embodiment of the present invention when the rotating shaft 920 is dismounted from the gear box.

When the bearing 910 and the rotating shaft 920 are detached from the gear box, the connecting assembly 12 is also first mounted on the gear box, the abutting head 155 is aligned with the mounting position, and the first abutting member 157 is mounted on the abutting head 155, the driving screw 13 is rotated, so that the driving screw 13 pushes the first thrust bearing 152, and further the first abutting portion 1572 is pressed against one end surface of the rotating shaft 920, so as to push the rotating shaft 920 and the bearing 910 at the other end of the rotating shaft 920 away from the gear box.

Then, the other bearing 910 is removed, the driving screw 13 is rotated to make the abutting head 155 extend into the gear box, the abutting head 155 is aligned with the installation position, and the third abutting member 159 is connected to the abutting head 155, the driving screw 13 is rotated to make the driving screw 13 push the first thrust bearing 152, so that the third abutting portion 1592 presses the inner ring of the bearing 910 from the gear box, and the bearing 910 is pressed out of the gear box. Thereby completing the disassembly of the rotating shaft 920 and the bearing 910.

In summary, the following steps:

the embodiment of the utility model provides a dismouting device 10, it has the dismouting stable, not fragile bearing 910 and gear shaft, and the higher characteristics of dismouting efficiency and precision.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that the features in the above embodiments may be combined with each other without conflict, and various modifications and variations of the present invention are possible. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A dismounting device is characterized by comprising a connecting component (12), a transmission screw rod (13) and a propping component (15);

the connecting assembly (12) is used for being detachably connected with a main body (930) to be installed, the transmission screw rod (13) is connected to the connecting assembly (12) in a threaded mode and is configured to move along the axial direction of the transmission screw rod when rotating relative to the connecting assembly (12);

one end of the transmission screw rod (13) is a rotary connecting end (132), and the abutting component (15) is rotatably connected to the rotary connecting end (132) and is used for pressing and holding an internal spline of a gear shaft, an inner ring of the bearing (910) or an outer ring of the bearing (910) under the pushing of the transmission screw rod (13).

2. The dismounting device according to claim 1, characterized in that said retaining assembly (15) comprises a retaining housing (151) and a first thrust bearing (152);

the supporting shell (151) is provided with a rotating connecting space (1512) and a first connecting hole (1513) which are communicated with each other, the rotating connecting end (132) extends into the rotating connecting space (1512) through the first connecting hole (1513), the first thrust bearing (152) is installed in the rotating connecting space (1512), one side of the first thrust bearing (152) is supported by the inner wall of the rotating connecting space (1512), the other side of the first thrust bearing is connected with the connecting end of the transmission screw rod (13), and the transmission screw rod (13) is pressed by the first thrust bearing (152) to support the supporting shell (151).

3. The dismounting device according to claim 2, characterized in that said retaining assembly (15) further comprises a rotary connection ring (153) and a second thrust bearing (154) mounted in said rotary connection space (1512);

the first thrust bearing (152), the rotating connecting ring (153) and the second thrust bearing (154) are coaxially arranged, two ends of the rotating connecting ring (153) are respectively abutted against the first thrust bearing (152) and the second thrust bearing (154), and the rotating connecting end (132) is connected to the inner wall of the rotating connecting ring (153).

4. The dismounting device according to claim 3, wherein the abutting shell (151) is further provided with a second connecting hole (1515), and the second connecting hole (1515) corresponds to the first connecting hole (1513);

the abutting assembly (15) further comprises an abutting head (155), the abutting head (155) is detachably connected with the abutting shell (151), is located in the second connecting hole (1515), and presses and holds the first thrust bearing (152), the rotating connecting ring (153) and the second thrust bearing (154) in the rotating connecting space (1512).

5. The dismounting device according to claim 4, wherein the abutting assembly (15) further comprises a connecting piece (1552), the abutting shell (151) is cylindrical, and the first connecting hole (1513) and the second connecting hole (1515) are respectively located at two ends of the abutting shell (151);

the connecting piece (1552) is detachably connected to the side face of the abutting shell (151) and detachably connected with the abutting head (155) so as to detachably connect the abutting head (155) with the second connecting hole (1515).

6. The dismounting device according to claim 4, wherein the transmission screw (13) is arranged in a cylindrical shape, and the abutting assembly (15) further comprises a connecting rod (156);

one end of the connecting rod (156) extends into the rotating connection space (1512) through the first connection hole (1513), and is fixedly connected to the abutting head (155), and the connecting rod (156) extends to one end, away from the rotating connection end (132), of the transmission screw rod (13) through the first connection hole (1513).

7. A device as claimed in claim 4, characterized in that said retaining assembly (15) further comprises a first retaining member (157);

the first abutting piece (157) comprises a first abutting connecting part (1571) and a first abutting part (1572), and the first abutting part (1572) is arranged in a circular plate shape and used for pressing and holding the end face of the gear shaft;

the first abutting connection portion (1571) is arranged in a circular ring shape and connected to the center of one side of the first abutting portion (1572), and the abutting head (155) is detachably connected to the inner wall of the first abutting connection portion (1571).

8. A device as claimed in claim 4, characterized in that said retaining assembly (15) further comprises a second retaining member (158);

the second abutting piece (158) comprises a second abutting connecting part (1581) and a second abutting part (1582), the second abutting connecting part (1581) is arranged in a circular plate shape, and the abutting head (155) is detachably connected to the center of the second abutting connecting part (1581);

the second abutting part (1582) is a circular ring, is connected to one side of the second abutting connection part (1581), and is used for pressing the outer ring of the bearing (910).

9. The dismounting device according to claim 8, wherein a rotation connection portion (1551) is convexly provided on an end face of the abutting head (155) far away from the first connection hole (1513), and the second abutting connection portion (1581) is in threaded connection with the rotation connection portion (1551) and abuts against an end face of the abutting head (155) far away from the second connection hole (1515).

10. A device as claimed in claim 4, characterized in that said retaining assembly (15) further comprises a third retaining member (159);

the third abutting piece (159) comprises a third abutting connecting part (1591) and a third abutting part (1592), and the third abutting part (1592) is arranged in a circular plate shape and is used for pressing and holding the inner ring of the bearing (910);

the third abutting connection part (1591) is arranged in a circular ring shape and connected to the center of one side of the third abutting part (1592), and the abutting head (155) is detachably connected to the inner wall of the third abutting connection part (1591).