Special tool for disassembling valve sleeve of hydraulic cartridge valve

Abstract

The utility model provides a special tool for disassembling a valve sleeve of a hydraulic cartridge valve, which relates to the technical field of hydraulic equipment and comprises a circular baffle plate, an adjusting nut, a screw handle, a positioning pin and a clip, the end face of the circular baffle is smooth and neat and used for being fixed to the side face of the mounting hole cover plate and separating the adjusting nut from the cartridge valve cover plate. The clip is parallel to the screw handle in an initial state so as to be conveniently inserted into an inner hole of the cartridge valve sleeve, and the direction of the clip is adjusted to be perpendicular to the screw handle by virtue of a straight screwdriver so as to clamp the inner hole of the cartridge valve sleeve; the relative position of the cartridge valve sleeve and the mounting hole is changed by rotating the adjusting nut, so that the clip and the cartridge valve sleeve are stably pulled out of the mounting hole together. The problems that an inner hole of a valve sleeve of a cartridge valve cannot be accurately clamped by a dismounting tool used in the past, so that the inner hole cannot be conveniently and stably taken out, the valve sleeve is probably damaged, and the production work is not facilitated are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic equipment, and more specifically relates to a special tool for disassembling a valve sleeve of a hydraulic cartridge valve. Background Art

[0002] The working principle of the hydraulic cartridge valve in the hydraulic oil station system is to adjust the position of the valve core relative to the valve sleeve through the solenoid valve or manual control of related components, so as to change the flow direction, pressure and flow of the oil in the hydraulic oil station system, and then control the direction, pressure and flow of the actuator. Due to its compact structure and fast response, it is widely used in the hydraulic oil station system of thermal power plants. However, frequent use of the hydraulic cartridge valve or working conditions with poor hydraulic oil will cause sticking or wear. In order to ensure the tightness of the oil system, the valve sleeve is often tightly fitted with the mounting hole. Without special disassembly work, the disassembly process is relatively difficult, affecting work efficiency. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a special tool for disassembling the valve sleeve of a hydraulic cartridge valve to solve the problem that the disassembly tools used in the past cannot accurately clamp the inner hole of the valve sleeve of the cartridge valve, so it cannot be removed conveniently and smoothly, and there is a probability of damaging the valve sleeve, which is not conducive to production work.

[0004] The utility model is a special tool for disassembling the valve sleeve of a hydraulic cartridge valve, which is achieved by the following specific technical means:

[0005] A special tool for disassembling a hydraulic cartridge valve sleeve: comprising a circular baffle, an adjusting nut, a screw handle, a locating pin and a clip; the end face of the circular baffle is smooth and neat, and is used to be fixed to the side of the mounting hole cover plate and to separate the adjusting nut and the cartridge valve cover plate; the clip is initially parallel to the screw handle so as to be inserted into the inner hole of the cartridge valve sleeve, and the direction of the clip is adjusted to be perpendicular to the screw handle with the help of a "slotted" screwdriver to clamp the inner hole of the cartridge valve sleeve; by rotating the adjusting nut, the relative position of the cartridge valve sleeve and the mounting hole is changed, so that the clip and the cartridge valve sleeve can be smoothly pulled out of the mounting hole together.

[0006] Furthermore, the adjusting nut should fit tightly with the screw handle to ensure that the relative position of the cartridge valve sleeve and the mounting hole can be smoothly changed when the adjusting nut is rotated.

[0007] Furthermore, the shape and size of the clip should match the inner hole of the cartridge valve sleeve to ensure that the cartridge valve sleeve can be firmly clamped.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. By adjusting the position and attitude of the clip, it can be easily inserted into the valve sleeve and clamped. On the premise of facilitating the smooth disassembly of the valve sleeve, it can ensure that the valve sleeve is not damaged, which is beneficial to production work.

[0010] 2. After the clip clamps the valve sleeve, the relative position of the valve sleeve and the installation hole is changed by adjusting the nut to remove the valve sleeve. The operation is relatively simple. In addition, the special tool has a small volume and is easy to carry, greatly improving work efficiency.

[0011] 3. This tool is designed under the condition of comprehensively considering the actual working conditions on site and has strong practicability. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model.

[0013] Figure 2 is the disassembly structural schematic diagram of the present utility model.

[0014] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0015] 1. Circular baffle;

[0016] 2. Adjusting nut;

[0017] 3. Screw handle;

[0018] 4. Positioning pin;

[0019] 5. Clip;

[0020] 6. Plug-in valve sleeve;

[0021] 7. Installation hole. Detailed Embodiments

[0022] The present utility model will be further described below in conjunction with specific embodiments, and the advantages and features of the present utility model will become clearer as the description progresses. However, these embodiments are exemplary only and do not constitute any limitation to the scope of the present utility model. Those skilled in the art should understand that without departing from the spirit and scope of the present utility model, modifications or substitutions can be made to the details and forms of the technical solution of the present utility model, but such modifications and substitutions all fall within the protection scope of the present utility model.

[0023] Embodiment: As shown in Attachment Figure 1 to Attachment Figure 2 shown:

[0024] The present utility model provides a special tool for disassembling a hydraulic cartridge valve sleeve, which includes a circular baffle 1, an adjusting nut 2, a screw handle 3, a positioning pin 4, and a clip 5; the end face of the circular baffle 1 is smooth and clean, and is used to be fixed on the side of the cover plate of the mounting hole 7 and separate the adjusting nut 2 and the cartridge valve cover plate; the clip 5 is initially parallel to the screw handle 3 so as to be inserted into the inner hole of the cartridge valve sleeve 6, and the direction of the clip 5 is adjusted to be perpendicular to the screw handle 3 with the help of a "flat-blade" screwdriver to clamp the inner hole of the cartridge valve sleeve 6; by rotating the adjusting nut 2, the relative position between the cartridge valve sleeve 6 and the mounting hole 7 is changed, so that the clip 5 and the cartridge valve sleeve 6 are smoothly withdrawn from the mounting hole 7 together.

[0025] Among them, the material of the circular baffle 1 should have sufficient strength and hardness to ensure that it can be stably fixed on the side of the cover plate of the mounting hole 7 of the cartridge valve during the disassembly process.

[0026] Among them, the adjusting nut 2 should be closely matched with the screw handle 3 to ensure that the relative position between the cartridge valve sleeve 6 and the mounting hole 7 can be smoothly changed when the adjusting nut 2 is rotated.

[0027] Among them, the shape and size of the clip 5 should match the inner hole of the cartridge valve sleeve 6 to ensure that the cartridge valve sleeve 6 can be firmly clamped.

[0028] The specific usage method and function of this embodiment:

[0029] In the present utility model, for the circular baffle 1, the adjusting nut 2, the screw handle 3, the positioning pin 4, and the clip 5, the end face of the circular baffle 1 needs to be maintained smooth and clean to ensure that there is no gap when it is attached to the side of the mounting hole 7 of the cartridge valve to be disassembled. Its function is to be fixed on the side of the cover plate of the mounting hole 7 and separate the adjusting nut 2 and the cartridge valve cover plate to prevent damage to the cover plate during the disassembly process; before disassembling the cartridge valve sleeve 6 with this special tool, the direction of the clip 5 needs to be set parallel to the screw handle 3 to facilitate insertion into the inner hole of the cartridge valve sleeve 6, and then with the help of a "flat-blade" screwdriver, the "flat-blade" screwdriver is inserted into the cavity of the screw handle 3 to adjust the direction of the clip 5 to be perpendicular to the screw handle 3. In this state, the clip 5 will tightly clamp the inner hole of the cartridge valve sleeve 6; after the clip 5 clamps the valve sleeve 6, the relative position between the valve sleeve 6 and the mounting hole 7 is changed by rotating the adjusting nut 2, so that the clip 5 and the valve sleeve are smoothly withdrawn from the mounting hole 7 together to realize the function of this special tool.

[0030] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent replacements or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A special tool for disassembling the valve sleeve of a hydraulic cartridge valve, characterized in that: It includes a circular baffle (1), an adjusting nut (2), a screw handle (3), a positioning pin (4) and a clip (5); the end face of the circular baffle (1) is smooth and clean, which is used to be fixed on the side of the cover plate of the mounting hole (7) and separate the adjusting nut (2) from the cartridge valve cover plate; the clip (5) is parallel to the screw handle (3) in the initial state so as to be inserted into the inner hole of the cartridge valve sleeve (6), and the direction of the clip (5) is adjusted to be perpendicular to the screw handle (3) by means of a "flat-blade" screwdriver to clamp the inner hole of the cartridge valve sleeve (6); by rotating the adjusting nut (2), the relative position between the cartridge valve sleeve (6) and the mounting hole (7) is changed, so that the clip (5) and the cartridge valve sleeve (6) are smoothly withdrawn from the mounting hole (7).

2. The special tool for disassembling the valve sleeve of a hydraulic cartridge valve according to claim 1, characterized in that: The adjusting nut (2) should be closely matched with the screw handle (3) to ensure that the relative position between the cartridge valve sleeve (6) and the mounting hole (7) can be smoothly changed when the adjusting nut (2) is rotated.

3. The special tool for disassembling the valve sleeve of a hydraulic cartridge valve according to claim 1, characterized in that: The shape and size of the clip (5) should match the inner hole of the cartridge valve sleeve (6) to ensure that the cartridge valve sleeve (6) can be firmly clamped.

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