CN219726086U - Dismounting device - Google Patents

Abstract

The disclosure relates to the technical field of disassembly and assembly equipment, and provides a disassembly and assembly device. The dismounting device comprises a dismounting table, a supporting part and a pressurizing part, wherein the supporting part and the pressurizing part are arranged on the dismounting table, the supporting part is used for supporting a sleeve to be assembled and a valve body, the sleeve and the valve body are coaxially arranged, and the pressurizing part is used for applying pressure along the central axis direction of the sleeve to the valve body so that the valve body is pressed into the sleeve along the pressure direction of the pressurizing part. The dismounting device that this disclosure provided can improve super jump bit's assembly efficiency, saves the manpower resources that needs during the assembly, can guarantee the axiality when sleeve pipe and valve body assembly simultaneously, avoids super jump bit because the inaccurate sealing washer that causes of assembly damages scheduling problem, improves once assembly success rate, and is steady effective, accurate safety.

Description

Dismounting device

Technical Field

The disclosure relates to the technical field of disassembly and assembly equipment, in particular to a disassembly and assembly device.

Background

Aiming at the assembly working condition of the hydraulic super impact hammer, key components such as a valve body and the like are required to be pressed into a sleeve of the super impact hammer by a press machine under the condition that coaxiality and pressing-in speed are required to be ensured in the assembly process, so that the super impact hammer is stable, safe and accurate in the assembly process.

At present, aiming at the assembly of the super impact hammer, the assembly of the super impact hammer is generally completed in a mode of combining a press machine with manual assistance, however, the pressure applied in the assembly process of the super impact hammer is large, the super impact hammer cannot be assembled manually and accurately, the coaxiality is difficult to ensure, and the sealing ring of the super impact hammer is easy to damage in the assembly process.

Disclosure of Invention

In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a dismounting device.

The utility model provides a dismouting device, including dismouting platform, supporting part and pressurization part, the supporting part with the pressurization part all sets up dismouting bench, the supporting part is used for supporting sleeve pipe and the valve body of waiting to assemble, and makes sleeve pipe with the coaxial setting of valve body, the pressurization part is used for to the valve body is applyed and is followed sheathed tube axis direction's pressure, so that the valve body is followed the pressure direction of pressurization part is impressed the sleeve pipe.

Optionally, the supporting part comprises a sleeve top seat, a sleeve supporting plate and a valve body supporting plate which are sequentially arranged along the length direction of the disassembly and assembly table;

the sleeve supporting plate is used for supporting the sleeve, one side of the sleeve footstock, which faces the sleeve supporting plate, is used for propping up one end of the sleeve along the axial direction, the valve body supporting plate is used for supporting the valve body and is slidably arranged on the dismounting table, and the valve body supporting plate can synchronously move along the direction close to the sleeve supporting plate with the valve body when the pressurizing part applies pressure to the valve body, so that the valve body is pressed into the sleeve by the other end of the sleeve along the axial direction.

Optionally, the sleeve supporting plate is further used for supporting a sleeve provided with a valve body, a disassembly hole for the valve body to penetrate is formed in the sleeve top seat, the disassembly hole is coaxially arranged with the sleeve, and the pressurizing part is further used for applying pressure along the central axis direction of the sleeve to the valve body assembled in the sleeve so that the valve body can be pressed out of the sleeve through the disassembly hole.

Optionally, a circular arc first supporting surface is formed at the top of the sleeve supporting plate, the first supporting surface is adapted to the outer peripheral surface of the sleeve, a circular arc second supporting surface is formed at the top of the valve body supporting plate, and the second supporting surface is adapted to the outer peripheral surface of the valve body.

Optionally, the valve body backup pad includes supporting baseplate, support riser and support clamp plate, supporting baseplate with dismouting platform sliding connection, the support riser sets up on the supporting baseplate and can for supporting baseplate reciprocates, the support riser is used for supporting the valve body, the support clamp plate sets up be used for the restriction on the supporting baseplate the maximum displacement that the support riser upwards moved.

Optionally, two ends of the bottom of the supporting bottom plate are respectively provided with an adjusting bolt, and one end of each adjusting bolt is abutted to the supporting vertical plate so as to drive the supporting vertical plate to move up and down by rotating the adjusting bolts;

the number of the supporting pressing plates is two, the two supporting pressing plates are respectively arranged at the two ends of the top of the supporting bottom plate, and the supporting vertical plates move upwards and are in butt joint with the two supporting pressing plates, so that the supporting vertical plates move upwards for the maximum displacement.

Optionally, the pressurization part includes pneumatic cylinder, hydraulic pressure station and hydraulic oil pipe, hydraulic oil pipe connects the pneumatic cylinder with the hydraulic pressure station, the hydraulic pressure station is through hydraulic oil pipe is to the pneumatic cylinder carries hydraulic oil, be provided with the pneumatic cylinder support on the dismouting platform, the pneumatic cylinder supports on the pneumatic cylinder support, the output of pneumatic cylinder is used for to the valve body is applyed along sheathed tube axis direction's pressure.

Optionally, the pressurizing part further comprises a push rod, the push rod is located between the output end of the hydraulic cylinder and the valve body, and the output end of the hydraulic cylinder transmits pressure along the central axis direction of the sleeve to the valve body through the push rod;

the supporting part also comprises a push rod supporting plate, the push rod supporting plate is used for supporting the push rod and is slidably arranged on the dismounting platform, and the push rod supporting plate can synchronously move towards the direction close to the sleeve with the push rod when the pressurizing part applies pressure to the push rod.

Optionally, the hydraulic station is configured with a hydraulic pressure monitoring system to monitor in real time the pressure of hydraulic oil output by the hydraulic station to the hydraulic cylinder through the hydraulic oil pipe.

Optionally, the dismouting platform includes the dismouting platen and sets up the dismouting platform landing leg in dismouting platen bottom four corners, the bottom of dismouting platform landing leg is provided with the ground truckle, the bottom of dismouting platen still is provided with the edge the first reinforcing plate muscle and the second reinforcing plate muscle that the length direction of dismouting platen extends, adjacent be provided with the dismouting platform crossbeam between the dismouting platform landing leg, a plurality of be provided with the dismouting platform baffle between the dismouting platform crossbeam, the dismouting platform baffle is located the below of dismouting platen.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides a dismouting device can be used to super jump bit's assembly, and this dismouting device includes dismouting platform, supporting part and pressurization part, and supporting part and pressurization part all set up on the dismouting platform, and supporting part is used for supporting sleeve pipe and the valve body of waiting to assemble to make sleeve pipe and the coaxial setting of valve body, pressurization part is used for applying the pressure along sheathed tube axis direction to the valve body, so that the valve body is pressed in the sleeve pipe along the pressure direction of pressurization part. Through with super jump bit wait that sleeve pipe and the valve body of assembly all place on the supporting part that sets up on the dismouting platform, can make the sleeve pipe and the valve body coaxial setting of waiting to assemble, apply the pressure along sheathed tube axis direction to the valve body through the pressurization portion for the valve body can be along the steady pressure direction of pressurization portion in the pressing into the sleeve pipe, realize the assembly of super jump bit, replace artifical assembly, labour saving and time saving improves the assembly efficiency of super jump bit, the manpower resources that needs when saving the assembly, axiality when can guarantee sleeve pipe and valve body assembly simultaneously, avoid super jump bit because the sealing washer that the assembly inaccurately causes damages scheduling problem, improve one-time assembly success rate, the assembly process is steady effective, it is accurate safe.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

FIG. 1 is a perspective view of a disassembling and assembling device according to an embodiment of the utility model;

FIG. 2 is a front view of a disassembling and assembling device according to an embodiment of the utility model;

FIG. 3 is a perspective view of a mounting/dismounting table according to an embodiment of the utility model;

fig. 4 is a partial schematic view of a valve body support plate according to an embodiment of the present utility model.

In the figure: 1. a disassembling and assembling table; 11. disassembling and assembling the bedplate; 12. a first reinforcing plate rib; 13. second reinforcing plate ribs; 14. disassembling and assembling the table cross beam; 15. disassembling and assembling the table partition board; 16. disassembling and assembling the landing leg of the platform; 17. floor casters;

2. a support part; 21. a sleeve top seat; 22. a sleeve support plate; 23. a support rail; 24. a valve body support plate; 241. supporting a guide rail slide block; 242. a support base plate; 243. supporting a vertical plate; 244. a support platen; 245. adjusting a bolt; 25. a push rod supporting plate;

3. a pressurizing section; 31. a hydraulic cylinder support; 32. a hydraulic cylinder; 33. a hydraulic station; 34. and a hydraulic oil pipe.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

The dismounting device is described in detail below by means of specific examples:

referring to fig. 1 to 4, an assembling and disassembling device according to an embodiment of the present utility model may be used for assembling a super impact hammer to stably and accurately press a valve body of the super impact hammer into a sleeve of the super impact hammer. Of course, the dismounting device is not limited to being applied to the assembly of the super impact hammer, but can be applied to the assembly of other products which need to press the valve body and other parts into the tubular structural parts such as the sleeve and the like.

Specifically, the dismounting device includes a dismounting table 1, a supporting portion 2, and a pressing portion 3. Wherein, supporting part 2 and pressurization part 3 all set up on dismouting platform 1, and supporting part 2 is used for supporting sleeve pipe and the valve body of waiting to assemble to make sleeve pipe and the coaxial setting of valve body, pressurization part 3 is used for exerting the pressure along the axis direction of sleeve pipe to the valve body, so that the valve body is along the pressure direction of pressurization part 3 indentation sleeve pipe. That is, through the supporting part 2 that sets up on this disclosure dismouting platform 1, can all place sleeve pipe and the valve body that wait to assemble on supporting part 2, and make sleeve pipe and the coaxial setting of valve body that wait to assemble, apply the pressure along sheathed tube axis direction to the valve body through pressurization part 3, make the valve body can be along the steady pressure direction of pressurization part in the sleeve pipe, realize the assembly of super jump bit, replace artifical assembly, labour saving and time saving, the assembly efficiency of super jump bit is improved, manpower resources that needs when saving the assembly, axiality when simultaneously can be guaranteed sleeve pipe and valve body assembly is avoided super jump bit because the sealing washer that the assembly inaccuracy caused damages scheduling problem, the improvement once assembly success rate, the assembly process is steady effective, it is accurate safe.

In some embodiments, referring to fig. 1 and 2, the support part 2 includes a sleeve top seat 21, a sleeve support plate 22, and a valve body support plate 24, which are sequentially disposed along the length direction of the dismounting table 1. Specifically, the longitudinal direction of the mount/demount stage 1 is referred to the left-right direction in fig. 2, that is, in the left-to-right direction in fig. 2, the sleeve top seat 21, the sleeve support plate 22, and the valve body support plate 24 are provided in this order, and the pressurizing portion 3 is provided at the right end of the mount/demount stage 1 and applies pressure to the valve body in the direction of the central axis of the sleeve.

Specifically, the sleeve support plate 22 is used for supporting the sleeve, and one side of the sleeve top seat 21 facing the sleeve support plate 22 is used for propping against one end of the sleeve in the axial direction, that is, one end of the sleeve is supported on the sleeve support plate 22 and is propped against the valve body, and the other end of the sleeve is propped against the sleeve top seat 21 under the pressure of the pressurizing part 3, so that the fixing of the sleeve position is realized. In the assembly process of the valve body and the sleeve, the valve body supporting plate 24 is used for supporting the valve body and is slidably arranged on the dismounting table 1, it is understood that when the pressurizing part 3 applies pressure to the valve body, the valve body is gradually pressed into the sleeve, the valve body is supported on the valve body supporting plate 24, and the valve body supporting plate 24 can synchronously move with the valve body towards the direction close to the sleeve supporting plate 22 under the action of the pressurizing part 3, so that the valve body is pressed into the sleeve from the other end of the sleeve along the axial direction, and the assembly of the valve body and the sleeve is completed.

Furthermore, the dismounting device can also be used for dismounting the super impact hammer, so that the valve body of the super impact hammer can be pressed out of the sleeve. Specifically, during the disassembly of the valve body from the sleeve, the sleeve support plate 22 is also used to support the sleeve fitted with the valve body, one end of the sleeve fitted with the valve body is supported on the sleeve support plate 22, and the other end abuts on the sleeve top seat 21 under the pressure of the pressurizing portion 3. Referring to fig. 1, a disassembly hole through which the valve body passes is formed in the sleeve top seat 21, the disassembly hole is coaxially provided with the sleeve and the valve body, and the pressurizing part 3 can apply pressure along the central axis direction of the sleeve to the valve body assembled in the sleeve so that the valve body is pressed out of the sleeve through the disassembly hole. It will be appreciated that under the pressure of the pressing portion 3, the valve body can be detached from one end of the sleeve abutting against the sleeve top seat 21, and the valve body penetrating out of the sleeve is penetrated out through the detachment hole, thereby completing the detachment of the valve body. In the specific dismouting in-process, the sleeve pipe is the cavity tubular structure that both ends switched on, and during the installation, the valve body is impressed from sheathed tube one end, and during the dismantlement, the valve body should be pressed out from sheathed tube same end, can make the dismantlement process more laborsaving, convenient dismantlement.

In some embodiments, referring to fig. 1, the top of the sleeve-supporting plate 22 is formed with a first supporting surface in the shape of a circular arc, which is adapted to the outer circumferential surface of the sleeve, and the top of the valve-body supporting plate 24 is formed with a second supporting surface in the shape of a circular arc, which is adapted to the outer circumferential surface of the valve body. It can be understood that the center of a circle of first holding surface and second holding surface is coaxial setting to guarantee that valve body and sleeve pipe can coaxial setting, thereby make the valve body can steadily push in the sleeve pipe, avoid setting up the sealing washer in the valve body outer lane and damage in the dismouting process.

Referring to fig. 4, the valve body support plate 24 includes a support base plate 242, a support riser 243, and a support pressure plate 244, the support base plate 242 is slidably connected to the mounting/dismounting table 1, the support riser 243 is provided on the support base plate 242 and is movable up and down with respect to the support base plate 242, the support riser 243 is for supporting the valve body, and the support pressure plate 244 is provided on the support base plate 242 for restricting the maximum displacement of the support riser 243 to move up. That is, the supporting riser 243 and the supporting platen 244 are disposed on the supporting base 242, the supporting rail slider 241 is disposed at the bottom of the supporting base 242, the supporting rail 23 is disposed on the mounting/dismounting table 1, the supporting rail slider 241 can slide on the supporting rail 23 to drive the supporting base 242 to move along the length direction of the mounting/dismounting table 1, that is, the valve body supporting plate 24 can move along the length direction of the mounting/dismounting table 1, and the valve body can move synchronously with the valve body supporting plate 24 to press the valve body into the sleeve. When the support riser 243 is at the highest position, the support riser 243 abuts on the support pressure plate 244, and the arc center of the top of the support riser 243 and the arc center of the top of the sleeve support plate 22 are coaxially arranged, so that the valve body and the sleeve can be coaxially arranged.

In particular, the two ends of the bottom of the supporting base plate 242 are respectively provided with an adjusting bolt 245, and one end of the adjusting bolt 245 is abutted against the supporting riser 243, so that the supporting riser 243 is driven to move up and down by rotating the adjusting bolt 245. Specifically, the supporting riser 243 has a T-shape, one side of both ends of the supporting riser 243 is abutted against the adjusting bolt 245, the adjusting bolt 245 is rotated to push the supporting riser 243 to move up and down, when the other side of both ends of the supporting riser 243 is abutted against the supporting platen 244, the supporting riser 243 is positioned at the highest position, and the valve body is supported on the supporting riser 243 and can move toward the sleeve in synchronization with the supporting riser 243.

It will be appreciated that when the travel of the valve body support plate 24 is insufficient to fully press the valve body into the sleeve, the valve body support plate 24 needs to be moved a plurality of times, at which time the height of the support riser 243 needs to be adjusted to separate the support riser 243 from the valve body, facilitating adjustment of the position of the support riser 243 on the support rail 23 so that the valve body can be moved again, in particular, by rotating the adjustment bolt 245 so that the support riser 243 moves downwardly and separates from the valve body to adjust the position of the valve body support plate 24 on the support rail 23.

Further, the number of the supporting pressing plates 244 is two, and the supporting pressing plates are respectively arranged at the two ends of the top of the supporting bottom plate 242, and the supporting vertical plate 243 moves upwards and is the maximum displacement of the upward movement of the supporting vertical plate 243 when abutting against the two supporting pressing plates 244. It can be appreciated that the positions of the supporting pressing plates 244 are set corresponding to the two ends of the T-shaped supporting vertical plate 243, so that the supporting vertical plate 243 is limited, and the sleeve and the valve body are coaxially arranged, so that the valve body can be stably pressed into the sleeve, and the sealing ring arranged on the outer ring of the valve body is prevented from being damaged in the process of disassembly and assembly.

It should be noted that the shape of the supporting riser 243 may be other shapes, as long as the displacement limit of the upward movement of the supporting riser 243 can be achieved by the supporting pressure plate 244 and the coaxial arrangement of the sleeve and the valve body can be ensured, which is not limited in the present disclosure.

In some embodiments, referring to fig. 1 and 2, the pressurizing part 3 includes a hydraulic cylinder 32, a hydraulic station 33, and a hydraulic oil pipe 34, the hydraulic oil pipe 34 connects the hydraulic cylinder 32 and the hydraulic station 33, the hydraulic station 33 transfers hydraulic oil to the hydraulic cylinder 32 through the hydraulic oil pipe 34, a hydraulic cylinder support 31 is provided on the disassembling and assembling table 1, the hydraulic cylinder 32 is supported on the hydraulic cylinder support 31, and an output end of the hydraulic cylinder 32 is used for applying pressure along a central axis direction of the sleeve to the valve body. It will be appreciated that the hydraulic oil in the hydraulic station 33 is fed into the hydraulic cylinder 32 via the hydraulic oil pipe 34 to achieve telescopic movement of the output end of the hydraulic cylinder 32, and the hydraulic cylinder 32 provides pressure to the valve body so that the valve body can be pressed into or out of the sleeve, thereby completing the installation and removal of the super impact hammer. Specifically, the hydraulic cylinder 32 is supported on a cylinder mount 31, and a hole through which an output end of the hydraulic cylinder 32 passes is provided on the cylinder mount 31 so that the hydraulic cylinder 32 can contact with the valve body and supply pressure.

In particular, the pressurizing portion 3 may further include a push rod, where the push rod is located between the output end of the hydraulic cylinder 32 and the valve body, and the output end of the hydraulic cylinder 32 transmits pressure along the central axis direction of the sleeve to the valve body through the push rod. It will be appreciated that since the output end of the hydraulic cylinder 32 has a limited stroke, even when the hydraulic cylinder 32 is located at the position of maximum stroke, the valve body cannot be completely pressed into the sleeve or removed from the sleeve, and therefore, a ram is further provided between the valve body and the output end of the hydraulic cylinder 32, the stroke of the hydraulic cylinder 32 is prolonged by the ram, and the pressure along the central axis direction of the sleeve is transmitted to the valve body by the ram. Specifically, the quantity of ejector pins is a plurality of, and the length of ejector pins is different, changes the ejector pins of different length according to actual demand, can make the valve body completely push in the sleeve pipe or dismantle the valve body from the sleeve pipe.

Further, referring to fig. 1, the supporting portion 2 further includes a jack supporting plate 25, and the jack supporting plate 25 is configured to support the jack and is slidably disposed on the mounting/dismounting table 1, and the jack supporting plate 25 is configured to move in a direction approaching the sleeve in synchronization with the jack when the pressing portion 3 applies pressure to the jack. It will be appreciated that during the process of providing pressure by the hydraulic cylinder 32 such that the ram moves, the ram is supported on the ram support plate 25, the ram support plate 25 is able to move towards the sleeve in synchronism with the ram, in particular, the ram is able to be arranged coaxially with the valve body, the sleeve, and the height of the ram support plate 25 is adjustable to adjust the position of the ram support plate 25 on the support rail 23.

In some embodiments, the hydraulic station 33 is configured with a hydraulic pressure monitoring system to monitor in real time the pressure of the hydraulic oil output by the hydraulic station 33 to the hydraulic cylinder 32 through the hydraulic oil line 34. It can be understood that through the pressure of real-time supervision hydraulic oil, can guarantee the valve body and impress sheathed tube stationarity, avoid setting up the sealing washer in the valve body outer lane and damage in the dismouting process.

Referring to fig. 3, the dismounting table 1 includes a dismounting table plate 11 and dismounting table legs 16 provided at four corners of the bottom of the dismounting table plate 11, the supporting portion 2 and the partial pressurizing portion 3 are provided on the dismounting table plate 11, the bottom of the dismounting table legs 16 is provided with foot wheels 17, that is, the dismounting table 1 is movable, and the bottom of the dismounting table plate 11 is further provided with a first reinforcing rib 12 and a second reinforcing rib 13 extending along the length direction of the dismounting table plate 11 to strengthen the supporting stability of the dismounting device. It should be noted that the first reinforcing ribs 12 and the second reinforcing ribs 13 may be provided in other directions, as long as the detachable platen 11 can be reinforced and the strength of the detachable table 1 can be increased, which is not limited in the present disclosure.

Specifically, a dismounting table cross beam 14 is provided between adjacent dismounting table legs 16, a dismounting table partition 15 is provided between a plurality of dismounting table cross beams 14, and the dismounting table partition 15 is located below the dismounting table plate 11. Referring to fig. 1, a hydraulic station 33 is provided on the disassembly and assembly table partition 15, a hydraulic cylinder 32 is provided on the disassembly and assembly table 11, and the valve body and the sleeve are attached to and detached from the disassembly and assembly table 11, and the hydraulic station 33 supplies a stable pressure to the hydraulic cylinder 32 through a hydraulic oil pipe 34.

To sum up, the dismouting device that this disclosure provided has solved super jump bit assembly in-process and has applyed pressure great, can't artifical accurate assembly, and is difficult to guarantee axiality and installation stationarity scheduling problem, and this dismouting device can effectively avoid super jump bit's sealing washer to damage, improves once assembly success rate. Through the test, the dismouting device that this disclosure provided, labour saving and time saving can improve super jump bit assembly efficiency about 60%, saves the manpower resources that needs about 30% during the assembly to avoided because the equipment trouble that the assembly is inaccurate causes, steady effectively, accurate safety.

It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

The above is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a dismouting device, its characterized in that includes dismouting platform (1), supporting part (2) and pressurization part (3), supporting part (2) with pressurization part (3) all set up on dismouting platform (1), supporting part (2) are used for supporting sleeve pipe and the valve body of waiting to assemble, and make sleeve pipe with the valve body is coaxial to be set up, pressurization part (3) are used for to the valve body is applyed and is followed sheathed tube axis direction's pressure, so that the valve body is followed the pressure direction of pressurization part (3) is pressed in the sleeve pipe.

2. The dismounting device according to claim 1, wherein the supporting portion (2) includes a sleeve top seat (21), a sleeve support plate (22) and a valve body support plate (24) which are provided in this order along a length direction of the dismounting table (1);

the sleeve supporting plate (22) is used for supporting the sleeve, one side of the sleeve footstock (21) facing the sleeve supporting plate (22) is used for propping up one end of the sleeve along the axial direction, the valve body supporting plate (24) is used for supporting the valve body and is slidably arranged on the dismounting table (1), and the valve body supporting plate (24) can synchronously move along the direction close to the sleeve supporting plate (22) with the valve body when the pressurizing part (3) applies pressure to the valve body so that the valve body is pressed into the sleeve by the other end of the sleeve along the axial direction.

3. Dismounting device according to claim 2, characterized in that the sleeve support plate (22) is also used for supporting a sleeve fitted with a valve body, the sleeve top seat (21) is provided with a dismounting hole for the valve body to pass through, the dismounting hole is arranged coaxially with the sleeve, and the pressing part (3) is also used for applying pressure along the central axis direction of the sleeve to the valve body fitted in the sleeve so that the valve body presses out of the sleeve via the dismounting hole.

4. The dismounting device as claimed in claim 2, characterized in that the top of the sleeve-supporting plate (22) is formed with a first supporting surface in the shape of a circular arc, which is adapted to the outer circumferential surface of the sleeve, and the top of the valve-body supporting plate (24) is formed with a second supporting surface in the shape of a circular arc, which is adapted to the outer circumferential surface of the valve body.

5. The dismounting device as claimed in claim 2, characterized in that the valve body support plate (24) comprises a support base plate (242), a support riser (243) and a support pressure plate (244), the support base plate (242) is slidably connected with the dismounting table (1), the support riser (243) is provided on the support base plate (242) and is movable up and down relative to the support base plate (242), the support riser (243) is used for supporting the valve body, and the support pressure plate (244) is provided on the support base plate (242) for limiting the maximum displacement of the support riser (243) in upward movement.

6. The dismounting device according to claim 5, wherein two ends of the bottom of the supporting base plate (242) are respectively provided with an adjusting bolt (245), one end of the adjusting bolt (245) is abutted against the supporting riser (243), so that the supporting riser (243) is driven to move up and down by rotating the adjusting bolt (245);

the number of the supporting pressing plates (244) is two, the two supporting pressing plates are respectively arranged at two ends of the top of the supporting bottom plate (242), and the supporting vertical plates (243) move upwards and are in butt joint with the two supporting pressing plates (244) to achieve maximum displacement of the upward movement of the supporting vertical plates (243).

7. Dismounting device according to any one of claims 1-6, characterized in that the pressurizing part (3) comprises a hydraulic cylinder (32), a hydraulic station (33) and a hydraulic oil pipe (34), the hydraulic oil pipe (34) connects the hydraulic cylinder (32) and the hydraulic station (33), the hydraulic station (33) delivers hydraulic oil to the hydraulic cylinder (32) through the hydraulic oil pipe (34), a hydraulic cylinder support (31) is arranged on the dismounting table (1), the hydraulic cylinder (32) is supported on the hydraulic cylinder support (31), and the output end of the hydraulic cylinder (32) is used for applying pressure along the central axis direction of the sleeve to the valve body.

8. The dismounting device as claimed in claim 7, characterized in that the pressing part (3) further comprises a ram, which is located between the output end of the hydraulic cylinder (32) and the valve body, and the output end of the hydraulic cylinder (32) transmits pressure in the direction of the central axis of the sleeve to the valve body via the ram;

the supporting part (2) further comprises a push rod supporting plate (25), the push rod supporting plate (25) is used for supporting the push rod and is slidably arranged on the dismounting table (1), and the push rod supporting plate (25) can synchronously move towards the direction close to the sleeve when the pressurizing part (3) applies pressure to the push rod.

9. The dismounting device as claimed in claim 8, characterized in that the hydraulic station (33) is provided with a hydraulic pressure monitoring system for monitoring in real time the pressure of the hydraulic oil output from the hydraulic station (33) to the hydraulic cylinder (32) through the hydraulic oil pipe (34).

10. The dismounting device according to any one of claims 1 to 6, characterized in that the dismounting table (1) comprises a dismounting table plate (11) and dismounting table support legs (16) arranged at four corners of the bottom of the dismounting table plate (11), ground casters (17) are arranged at the bottom of the dismounting table support legs (16), first reinforcing plate ribs (12) and second reinforcing plate ribs (13) extending along the length direction of the dismounting table plate (11) are further arranged at the bottom of the dismounting table plate (11), dismounting table cross beams (14) are arranged between adjacent dismounting table support legs (16), dismounting table partition plates (15) are arranged between a plurality of dismounting table cross beams (14), and the dismounting table partition plates (15) are located below the dismounting table plate (11).