Dismounting tool and hydraulic valve dismounting equipment

Abstract

The utility model belongs to the technical field of part dismounting, and discloses a dismounting tool and hydraulic valve dismounting equipment, the dismounting tool comprises a pipe sleeve, a screw rod and a pin, the pipe sleeve is provided with a threaded through hole along the axial direction, the screw rod is screwed in the threaded through hole, the screw rod can move relative to the pipe sleeve along the axial direction when the screw rod is screwed, the pipe wall of the pipe sleeve is provided with a mounting hole, and the pin is inserted into the mounting hole. The mounting hole extends in the radial direction of the pipe sleeve and is communicated with the threaded through hole, and the pin is inserted into the mounting hole and has a first working state that the pin retracts into the mounting hole until one end of the pin is inserted into the threaded through hole and a second working state that the pin is pushed by the screw to extend out of the mounting hole when the screw moves in the axial direction of the pin. According to the disassembling tool, the valve seat can be pushed out from the interior of the hydraulic valve, so that the valve seat can be easily disassembled from the valve sleeve, and the valve seat and / or the valve sleeve are / is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of parts disassembly technology, and in particular to a disassembly fixture and hydraulic valve disassembly equipment. Background Technology

[0002] A hydraulic valve is a type of valve used to control the pressure, flow rate, and direction of liquid in a hydraulic system. During the use of a hydraulic valve, the internal components of the valve need to be maintained or replaced frequently due to wear and tear. Specifically, the operator needs to remove the valve seat from the valve sleeve to open the hydraulic valve, and then perform maintenance or replacement on the internal components of the hydraulic valve.

[0003] As mentioned above, the valve seat and valve sleeve are interference fit. Existing technology generally uses a pulling method to remove the valve seat from the valve sleeve. However, it is difficult to remove the valve seat by pulling, and pulling can easily damage the valve seat and / or valve sleeve. Utility Model Content

[0004] The purpose of this utility model is to provide a disassembly tool and hydraulic valve disassembly equipment to solve the problem that it is difficult to remove the valve seat by pulling, and that pulling can easily damage the valve seat and / or valve sleeve.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] This utility model provides a disassembly fixture for disassembling part two that is interference-fitted onto part one. The disassembly fixture includes:

[0007] A sleeve and a screw, wherein the sleeve has a threaded through hole along its axial direction, the screw is screwed into the threaded through hole and is capable of moving relative to the sleeve along its axial direction when screwed; the sleeve has a mounting hole on its wall, the mounting hole extending radially along the sleeve and communicating with the threaded through hole; and

[0008] The pin is inserted into the mounting hole and has a first working state in which it is retracted into the mounting hole to one end being inserted into the threaded through hole, and a second working state in which it is pushed out of the mounting hole by the screw when the screw moves along its axial direction.

[0009] Preferably, the sleeve is provided with a plurality of mounting holes, and the pin is inserted into all of the mounting holes.

[0010] Preferably, the mounting holes are evenly arranged along the circumference of the sleeve.

[0011] Preferably, the mounting holes are divided into at least two groups, each group including two mounting holes, and the two mounting holes in each group are arranged at a radial distance along the sleeve.

[0012] Preferably, the end of the screw inserted into the sleeve is tapered.

[0013] Preferably, the end of the pin near the threaded through hole is chamfered.

[0014] Preferably, a handle is provided at the end of the screw away from the sleeve.

[0015] Preferably, the handle includes a first hand-holding portion and a second hand-holding portion, which are located on both sides of the screw along its radial direction.

[0016] In another aspect, this utility model also provides a hydraulic valve disassembly device for disassembling the valve seat of a hydraulic valve. The valve seat has a through hole. The hydraulic valve disassembly device includes the disassembly fixture described above. The sleeve can pass through the through hole and extend into the hydraulic valve.

[0017] Preferably, the hydraulic valve disassembly device further includes a fixing device configured to fix the hydraulic valve.

[0018] The beneficial effects of this utility model are:

[0019] This invention retracts the pin into the mounting hole, allowing the sleeve and the pin mounted on the sleeve to pass through the valve seat and be inserted into the valve sleeve. After the pin passes through the valve seat and moves into the valve sleeve, the invention pushes the pin out of the mounting hole by turning the screw. The part of the pin protruding from the mounting hole can then block the side of the valve seat facing inward when the screw is pulled outward, thereby pushing the valve seat and detaching it from the valve sleeve. Therefore, the disassembly tool in this invention can push the valve seat out from inside the hydraulic valve, making it easier to remove the valve seat from the valve sleeve and avoiding damage to the valve seat and / or valve sleeve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the valve seat and valve sleeve in an embodiment of this utility model;

[0021] Figure 2 This is a top view of the disassembly tooling, valve seat, and valve sleeve when the pin is in the second working state in this embodiment of the utility model.

[0022] Figure 3 It is along Figure 2 Sectional view of line AA in the middle;

[0023] Figure 4 This is a schematic diagram of the screw structure in an embodiment of the present utility model;

[0024] Figure 5This is a schematic diagram of the tube sleeve in an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the pin in an embodiment of this utility model.

[0026] In the picture:

[0027] 110. Valve seat; 111. Perforation; 120. Valve sleeve;

[0028] 1. Sleeve; 11. Threaded through hole; 12. Mounting hole; 2. Screw; 21. Handle; 211. First hand grip; 212. Second hand grip; 3. Pin; 31. Chamfer. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figures 1 to 3 As shown, the hydraulic valve includes a valve seat 110 and a valve sleeve 120. During the use of the hydraulic valve, the internal components of the valve sleeve 120 need to be frequently maintained or replaced due to wear and tear. Each time the operator maintains or replaces the internal components of the valve sleeve 120, the valve seat 110 must first be removed from the valve sleeve 120.

[0034] To disassemble the valve seat 110, this embodiment provides a hydraulic valve disassembly device. The hydraulic valve disassembly device is used to disassemble the valve seat 110 of the hydraulic valve. The hydraulic valve disassembly device includes a disassembly fixture, which is used to disassemble part two that is interference-fitted on part one. Based on the above description, in this embodiment, part one is valve sleeve 120 and part two is valve seat 110.

[0035] Please see Figures 2 to 6 and combined Figure 1 In this embodiment, the disassembly fixture includes a sleeve 1, a screw 2, and a pin 3. The sleeve 1 has a threaded through hole 11 along its axial direction. The screw 2 is screwed into the threaded through hole 11. That is, the sleeve 1 is sleeved on the outer periphery of the screw 2 through the threaded through hole 11. Moreover, the screw 2 can move relative to the sleeve 1 along its axial direction when it is screwed. The sleeve 1 has a mounting hole 12 on its wall. The mounting hole 12 extends radially along the sleeve 1 and communicates with the threaded through hole 11. The pin 3 is inserted into the mounting hole 12 and has a first working state where it is retracted into the mounting hole 12 to one end inserted into the threaded through hole 11, and a second working state where it is pushed out of the mounting hole 12 by the screw 2 when the screw 2 moves along its axial direction.

[0036] As mentioned above, it is worth noting that, based on the existing technology, the valve seat 110 is provided with a through hole 111. When it is necessary to disassemble the valve seat 110, first turn the screw 2 so that the pin 3 can be in the first working state. After the pin 3 is in the first working state, pass the sleeve 1 through the through hole 111 and extend it into the valve sleeve 120 of the hydraulic valve until the mounting hole 12 also passes through the through hole 111 and extends into the valve sleeve 120 of the hydraulic valve. Then, turn the screw 2 and move the screw 2 axially toward the inside of the valve sleeve 120, thereby pushing the pin 3 to protrude from the mounting hole 12. Then, pull the screw 2 outward. Since the pin 3 protruding from the mounting hole 12 can abut against the side of the valve seat 110 facing the inside of the valve sleeve 120, when the screw 2 is pulled outward, the pin 3 can push against the valve seat 110, thereby causing the valve seat 110 to disengage from the valve sleeve 120.

[0037] Based on the above, in this embodiment, by retracting the pin 3 into the mounting hole 12, the sleeve 1 and the pin 3 mounted on the sleeve 1 can pass through the valve seat 110 and be inserted into the valve sleeve 120. After the pin 3 passes through the valve seat 110 and moves into the valve sleeve 120 along with the sleeve 1, this embodiment pushes the pin 3 by turning the screw 2, so that the pin 3 protrudes from the mounting hole 12. The part of the pin 3 protruding from the mounting hole 12 can block the side of the valve seat 110 facing the inside of the valve sleeve 120 when the screw 2 is pulled outwards, thereby pushing the valve seat 110 and causing the valve seat 110 to detach from the valve sleeve 120. Therefore, the disassembly tool in this embodiment can push the valve seat 110 out from inside the hydraulic valve, thereby making it easier to remove the valve seat 110 from the valve sleeve 120 and avoiding damage to the valve seat 110 and / or the valve sleeve 120.

[0038] It is understood that in other alternative embodiments, the disassembly fixture can also be used to disassemble other interference-fit parts, such as interference-fit bearings and shaft tubes, and this embodiment does not impose specific limitations on this.

[0039] It is worth noting that the hydraulic valve disassembly equipment also includes a fixing device, which is configured to fix the hydraulic valve. Specifically, the fixing device is used to fix the valve sleeve 120, thereby ensuring that the valve sleeve 120 can remain stationary when the screw 2 is pulled outward, thus making it easier to remove the valve seat 110 from the valve sleeve 120.

[0040] It is understood that the fixing device can be a pneumatic clamping structure or a hydraulic clamping structure, etc. This embodiment does not make specific restrictions on this. Since the specific structure of the fixing device is existing technology, this embodiment will not elaborate on it.

[0041] For further information, please refer to [link / reference]. Figures 2 to 6 Based on the above description, in this embodiment, the end of the screw 2 inserted into the sleeve 1 is tapered, which facilitates the movement of the pin 3 along the extension direction of the mounting hole 12 when the screw 2 is turned.

[0042] Furthermore, the end of the pin 3 near the threaded through hole 11 is provided with a chamfer 31, thereby avoiding blocking the screw 2, and further facilitating the screw 2 to push against it and move along the extension direction of the mounting hole 12.

[0043] In addition, a handle 21 is provided at the end of the screw 2 away from the sleeve 1. That is, in this embodiment, the operator can turn the screw 2 through the handle 21 and pull the screw 2 outward through the handle 21, making the operation more convenient.

[0044] It is worth noting that the handle 21 includes a first hand-holding part 211 and a second hand-holding part 212. The first hand-holding part 211 and the second hand-holding part 212 are respectively located on both sides of the screw 2 along its radial direction, so that the operator can apply a pulling force to the screw 2 on both sides along the radial direction of the screw 2, thereby making it more convenient for the operator to pull the screw 2 outward.

[0045] Furthermore, the sleeve 1 is provided with several mounting holes 12, and a pin 3 is inserted into all mounting holes 12, so as to ensure that the valve seat 110 can be pushed out more smoothly by pulling the screw 2 outward.

[0046] Moreover, the mounting holes 12 are evenly arranged along the circumference of the sleeve 1, so that when the screw 2 is pulled outward, the pins 3 can apply a pushing force to the valve seat 110 evenly, thereby avoiding jamming during the process of pushing the valve seat 110 out. That is, this embodiment can push the valve seat 110 out more smoothly.

[0047] In addition, the mounting holes 12 are divided into at least two groups, each group including two mounting holes 12. The two mounting holes 12 in each group are arranged radially at intervals along the sleeve 1. This embodiment takes the sleeve 1 with four mounting holes 12 as an example. The four mounting holes 12 are divided into two groups. When the screw 2 is turned so that the four pins 3 extend out of the mounting holes 12, the four pins 3 form a cross-shaped structure. When the screw 2 is pulled outward, the cross-shaped structure formed by the four pins 3 can push against the valve seat 110, thereby pushing the valve seat 110 out.

[0048] Of course, in other optional embodiments, the sleeve 1 may also be provided with six or eight or other numbers of mounting holes 12, and all mounting holes 12 may be divided into three or four groups or more. This embodiment does not impose specific restrictions on this.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A disassembly fixture for disassembling part two, which is interference-fitted onto part one, characterized in that: The disassembly fixture includes: A sleeve (1) and a screw (2), wherein the sleeve (1) is provided with a threaded through hole (11) along its axial direction, and the screw (2) is screwed into the threaded through hole (11) and is able to move relative to the sleeve (1) along its axial direction when screwed. A mounting hole (12) is provided on the wall of the sleeve (1), the mounting hole (12) extending radially along the sleeve (1) and communicating with the threaded through hole (11); and The pin (3) is inserted into the mounting hole (12) and has a first working state in which it is retracted into the mounting hole (12) to one end being inserted into the threaded through hole (11), and a second working state in which it is pushed out of the mounting hole (12) by the screw (2) when the screw (2) moves along its axial direction.

2. The disassembly fixture according to claim 1, characterized in that, The sleeve (1) is provided with a plurality of mounting holes (12), and the pin (3) is inserted into all the mounting holes (12).

3. The disassembly fixture according to claim 2, characterized in that, Several mounting holes (12) are evenly arranged along the circumference of the sleeve (1).

4. The disassembly fixture according to claim 3, characterized in that, The mounting holes (12) are divided into at least two groups, each group including two mounting holes (12), and the two mounting holes (12) in each group are arranged radially spaced along the sleeve (1).

5. The disassembly fixture according to claim 1, characterized in that, The end of the screw (2) inserted into the sleeve (1) is tapered.

6. The disassembly fixture according to claim 5, characterized in that, The pin (3) has a chamfer (31) at one end near the threaded through hole (11).

7. The disassembly fixture according to claim 1, characterized in that, A handle (21) is provided at the end of the screw (2) away from the sleeve (1).

8. The disassembly fixture according to claim 7, characterized in that, The handle (21) includes a first hand-holding part (211) and a second hand-holding part (212), which are located on both sides of the screw (2) along its radial direction.

9. A hydraulic valve disassembly device for disassembling a valve seat (110) of a hydraulic valve, wherein the valve seat (110) is provided with a through hole (111), characterized in that, The hydraulic valve disassembly device includes the disassembly fixture as described in any one of claims 1-8, wherein the sleeve (1) is capable of passing through the perforation (111) and extending into the hydraulic valve.

10. The hydraulic valve disassembly device according to claim 9, characterized in that, The hydraulic valve disassembly device also includes a fixing device configured to fix the hydraulic valve.

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