Solenoid valve dismounting device

Abstract

The utility model discloses an electromagnetic valve dismounting device which comprises a fixing mechanism and a dismounting mechanism. The fixing mechanism comprises a base, a fastening assembly arranged on the base and used for fixing a valve shell of the electromagnetic valve, a positioning piece arranged on the base and used for positioning the electromagnetic valve, and a guiding piece arranged on the positioning piece and used for guiding a clamping spring of the electromagnetic valve to change the movement direction. The dismounting mechanism comprises a connecting assembly used for being connected with a valve sleeve of the electromagnetic valve and a driving part connected with the connecting assembly. According to the electromagnetic valve dismounting device, the electromagnetic valve can be dismounted in a lossless mode, cutting is not needed in the whole process, metal scrap pollution is avoided, interference on fault analysis is avoided, the electromagnetic valve dismounted through the electromagnetic valve dismounting device can be reassembled and restored, the electromagnetic valve can be reused, and resources are saved.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic valve disassembly, in particular to a electromagnetic valve disassembly device. Background Art

[0002] Solenoid valves are widely used in the control of turbine hydraulic systems. They are used to open and cut off the supply of hydraulic oil, thereby realizing the switching action of the turbine steam inlet valve. They are components that play an important role in emergency isolation and daily testing.

[0003] Jamming or refusal to move is a common fault of solenoid valves in daily operation. In order to analyze the cause of the jamming of hydraulic solenoid valves, the solenoid valves need to be disassembled frequently. During disassembly, the valve sleeve needs to be separated from the valve housing. The key step is to remove the retaining ring installed between the valve sleeve and the valve housing. However, since the retaining ring has a diameter of only 0.6 mm and its installation position is extremely special, it is located in the groove between the inner wall of the valve housing and the outer wall of the valve sleeve. The maximum length of the retaining ring that leaks out through the opening of the valve sleeve groove is only 3 mm. It is very difficult to remove it on site, and there has been no good way to achieve non-destructive disassembly. In the past, disassembly inspections often adopted destructive disassembly methods, that is, cutting the valve housing and then inspecting the inside of the solenoid valve. The disadvantage of this is that metal debris particles formed during the cutting process may enter the inside of the valve sleeve, affecting the analysis and judgment of the fault. The disassembled solenoid valve cannot be reassembled and reused because the valve sleeve has been cut. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a solenoid valve disassembly device to solve the problem that the disassembled solenoid valve cannot be reassembled and reused.

[0005] The technical solution adopted by the utility model to solve the technical problem is: constructing a solenoid valve disassembly device, which includes a fixing mechanism and a disassembly mechanism;

[0006] The fixing mechanism includes a base, a fastening assembly disposed on the base and used to fix the valve housing of the solenoid valve, a positioning member disposed on the base and used to position the solenoid valve, and a guide member disposed on the positioning member and used to guide the retaining spring of the solenoid valve to change the movement direction;

[0007] The disassembly mechanism comprises a connecting assembly for connecting with the valve sleeve of the solenoid valve and a driving part connected with the connecting assembly.

[0008] In some embodiments, the positioning member is provided with a through hole for the guide member to pass through.

[0009] In some embodiments, the positioning member is further provided with a guide fixing member for fixing the guide member.

[0010] In some embodiments, the positioning member is provided with a retaining spring guide hole for guiding the retaining spring of the solenoid valve out.

[0011] In some embodiments, the number of the fastening components is two groups, each group of the fastening components includes a base arranged on the base and a valve body fixing member arranged on the base, and an accommodating space for accommodating the valve housing of the solenoid valve is formed between the two bases.

[0012] In some embodiments, the connection assembly includes a fixed clamp and a movable clamp, and the fixed clamp is connected to the driving part through a support rod.

[0013] In some embodiments, the movable clamp is movably connected to the support rod.

[0014] In some embodiments, the disassembly mechanism further includes an elastic member sleeved on the support rod, one end of the elastic member is connected to the movable chuck, and the other end of the elastic member is connected to the driving part.

[0015] In some embodiments, the fixed clamp is provided with a fixed clamping portion for connecting to the valve sleeve positioning hole of the solenoid valve, and the movable clamp is provided with a movable clamping portion for connecting to another valve sleeve positioning hole of the solenoid valve, and the fixed clamping portion and the movable clamping portion are arranged correspondingly.

[0016] In some embodiments, the guide member is an elastic steel wire.

[0017] The implementation of the utility model has the following beneficial effects: the solenoid valve disassembly device can realize non-destructive disassembly of the solenoid valve, the whole process does not require cutting, there is no metal debris pollution, and interference with fault analysis is avoided. The solenoid valve disassembled by the solenoid valve disassembly device can be reinstalled and restored in its original state, and the solenoid valve can be reused, saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of a fixing mechanism of a solenoid valve disassembly device in some embodiments of the utility model;

[0020] Figure 2 It is a structural schematic diagram of a disassembly mechanism of a solenoid valve disassembly device in some embodiments of the utility model;

[0021] Figure 3 It is a schematic diagram of the installation section of the solenoid valve;

[0022] Figure 4 It is a cross-sectional view of the guide member aligning with the retaining spring;

[0023] Figure 5 It is a cross-sectional view of the retaining ring removal process. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0025] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0026] See also Figures 1 to 5 The utility model discloses a solenoid valve disassembly device, such as Figure 3As shown, it is an installation cross-sectional view of the solenoid valve, which includes a valve housing 31, a retaining spring 32 and a valve sleeve 33. In order to analyze the cause of the hydraulic solenoid valve being stuck, the solenoid valve needs to be disassembled frequently. During disassembly, the valve sleeve needs to be separated from the valve housing. The key step is to remove the retaining spring installed between the valve sleeve and the valve housing. However, since the retaining spring has a diameter of only 0.6 mm and an extremely special installation position, it is located in the groove between the inner wall of the valve housing and the outer wall of the valve sleeve. The maximum length of the retaining spring that leaks out through the opening of the valve sleeve groove is only 3 mm. It is very difficult to remove it on site, and there has been no good way to achieve non-destructive disassembly. In order to solve the problem of disassembly and fault analysis of the solenoid valve, the retaining spring 32 is removed by the solenoid valve disassembly device, thereby achieving the purpose of non-destructive disassembly of the solenoid valve, solving the problem that the destructive disassembly method is often adopted in the past for disassembly inspection, avoiding the risk that metal debris particles formed during the cutting process may enter the inside of the valve sleeve, avoiding affecting the analysis and judgment of the fault, and the solenoid valve disassembled by the solenoid valve disassembly device can also be reassembled and reused.

[0027] The solenoid valve disassembly device may include a fixing mechanism 1 and a disassembly mechanism 2, wherein the fixing mechanism 1 includes a base 11, a fastening assembly 12 disposed on the base 11 and used to fix the valve housing 31 of the solenoid valve, a positioning member 13 disposed on the base 11 and used to position the solenoid valve, and a guide member 14 disposed on the positioning member 13 and used to guide the retaining spring 32 of the solenoid valve to change the direction of movement. Specifically, the base 11 can be used to support and position the fastening assembly 12 and the positioning member 13, and the base 11 may be circular or rectangular. The positioning member 13 may be connected to the base 11 by bolts, and the positioning member 13 is in the shape of a circular ring that matches the shape of the solenoid valve, and cooperates with the fastening assembly 12 to fix and position the solenoid valve as a whole. The guide member 14 is preferably an elastic steel wire, one end of which can be inserted into the installation position of the retaining spring 32. When the valve sleeve 33 drives the retaining spring 32 to rotate, the end of the retaining spring 32 is blocked by the guide member 14, thereby changing the movement direction of the retaining spring 32, so that the retaining spring 32 can be guided out and separated from the valve housing 31.

[0028] The base 11, the fastening assembly 12 and the positioning member 13 are preferably made of stainless steel, which has good strength and rigidity, and is corrosion-resistant and high-temperature-resistant. In other embodiments, the base 11, the fastening assembly 12 and the positioning member 13 may also be made of carbon steel or aluminum alloy, which is not specifically limited here.

[0029] Furthermore, the positioning member 13 is provided with a through hole 131 for the guide member 14 to pass through, and the positioning member 13 is also provided with a guide fixing member 132 for fixing the guide member 14. It can be understood that when the retaining spring 32 of the solenoid valve is located in the positioning member 13, one end of the guide member 14 can be inserted into the through hole 131 and inserted into the end installation position of the retaining spring 32, and the guide member 14 can be fixed by the guide fixing member 132. The design of the positioning member 13 can make the alignment of the guide member 14 and the retaining spring 32 more precise.

[0030] The positioning member 13 is provided with a retaining spring guide hole 133 for guiding the retaining spring 32 of the solenoid valve. The retaining spring guide hole 133 is generally located near the through hole 131, and the separated retaining spring 32 can be guided out from the retaining spring guide hole 133. The design of the retaining spring guide hole 133 enables the retaining spring 32 to detach automatically as the valve sleeve 33 rotates without manual pulling.

[0031] There are two sets of the fastening components 12, each set of the fastening components 12 includes a base 121 disposed on the base 11 and a valve body fixing member 122 disposed on the base 121. An accommodation space for accommodating the valve housing 31 of the solenoid valve is formed between the two bases 121. When the valve housing 31 of the solenoid valve is accommodated in the accommodation space, the entire solenoid valve can be clamped and fixed by a pair of valve body fixing members 122, which facilitates the subsequent disassembly process. In some other embodiments, the fastening component 12 can also be a mounting base to fix the valve housing 31 of the solenoid valve.

[0032] The disassembly mechanism 2 includes a connecting component 21 for connecting to the valve sleeve 33 of the solenoid valve and a driving part 22 connected to the connecting component 21. In a specific embodiment, the fastening component 12 and the positioning member 13 jointly complete the positioning and fixing of the solenoid valve to be disassembled. The connecting component 21 can be clamped on the valve sleeve 33 of the solenoid valve. At this time, the driving part 22 is pulled, and the connecting component 21 also rotates, and the valve sleeve 33 of the solenoid valve also rotates accordingly. During the rotation of the valve sleeve 33 of the solenoid valve, the retaining spring 32 will also rotate. Since the guide member 14 can guide the retaining spring 32 of the solenoid valve to change the direction of movement, the retaining spring 32 will be guided out, so that the retaining spring 32 can be taken out without damage during the disassembly process of the solenoid valve.

[0033] More specifically, the connecting assembly 21 includes a fixed chuck 211 and a movable chuck 212, both of which are roughly L-shaped. The driving portion 22 can be a handle, and the operator can rotate the driving portion 22 to rotate the entire disassembly mechanism 2. At this time, the valve sleeve 33 also rotates with the rotation of the disassembly mechanism 2.

[0034] In addition, the fixed chuck 211 is connected to the driving part 22 via the support rod 213, and the movable chuck 212 is movably connected to the support rod 213. It can be understood that the two ends of the support rod 213 are respectively fixedly connected to the fixed chuck 211 and the driving part 22, and the movable chuck 212 can be moved along the height direction of the support rod 213, so that the distance between the fixed chuck 211 and the movable chuck 212 can be adjusted.

[0035] Furthermore, the disassembly mechanism 2 also includes an elastic member 214 mounted on the support rod 213, one end of the elastic member 214 is connected to the movable clamp 212, and the other end of the elastic member 214 is connected to the driving part 22. The elastic member 214 provides an elastic force for the movable clamp 212 to move away from the driving part 22, and the elastic member 214 is preferably a compression spring.

[0036] The fixed clamping head 211 is provided with a fixed clamping portion 215 for connecting to the positioning hole of the valve sleeve 33 of the solenoid valve, and the movable clamping portion 216 is provided on the movable clamping head 212 for connecting to another positioning hole of the valve sleeve 33 of the solenoid valve, and the fixed clamping portion 215 and the movable clamping portion 216 are arranged correspondingly. When the disassembly mechanism 2 is used, the movable clamping head 212 can be pulled downward, and the fixed clamping portion 215 and the movable clamping portion 216 can be placed in the positioning hole of the valve sleeve 33 at the same time. At this time, the movable clamping head 212 is released, and the movable clamping head 212 extends into the positioning hole of the valve sleeve 33 under the elastic force of the elastic member 214, and the rotating driving portion 22 can drive the valve sleeve 33 to rotate.

[0037] The steps for non-destructively disassembling a solenoid valve using the solenoid valve disassembly device are as follows:

[0038] 1. Pull down the movable clamp 212, install the fixed clamping part 215 and the movable clamping part 216 into the two positioning holes of the valve sleeve 33 respectively, loosen the movable clamp 212, and rotate the driving part 22 until the end of the retaining ring 32 can be seen to leak out 1mm to 2mm;

[0039] 2. Install the solenoid valve as a whole on the fixing mechanism 1, and insert the retaining spring 32 of the solenoid valve sleeve 33 into the positioning member 13;

[0040] 3. Insert the guide 14 and adjust the angle of the solenoid valve appropriately so that the relative position of the guide 14 and the retaining spring 32 is as follows: Figure 4 As shown, tighten the guide fixing member 132 and the valve body fixing member 122;

[0041] 4. Press Figure 4 The disassembly mechanism 2 is rotated in the direction of the arrow, the disassembly mechanism 2 drives the valve sleeve 33 to rotate, the valve sleeve 33 drives the retaining spring 32 to rotate, the end of the retaining spring 32 is blocked by the guide member 14, and is guided by the guide member 14, and the retaining spring 32 is led out along the retaining spring guide hole 133, as shown in FIG. Figure 5Continue to rotate the disassembly mechanism 2 until the clamping ring 32 is completely separated from the valve housing 31;

[0042] 5. Loosen the guide fixing member 132 and pull out the guide member 14;

[0043] 6. Pull the valve sleeve 33 out of the valve housing 31;

[0044] 7. Loosen the valve body fixing part 122 and remove the solenoid valve housing 31 from the fixing mechanism 1.

[0045] It can be understood that the solenoid valve disassembly device can realize non-destructive disassembly of the solenoid valve. The whole process does not require cutting, and there is no metal debris pollution, which avoids interference with fault analysis. The solenoid valve disassembled by this solenoid valve disassembly device can be restored in its original state, and the solenoid valve can be reused, saving resources. For the analysis of the root cause of the solenoid valve failure and failure of the steam turbine fire-resistant oil system, it provides more abundant means and channels, improves the reliability of the hydraulic control system, lubrication system, etc., and improves the overall safety and reliability of the unit.

[0046] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A solenoid valve disassembly device, characterized in that: It comprises a fixing mechanism (1) and a disassembling mechanism (2); The fixing mechanism (1) comprises a base (11), a fastening assembly (12) disposed on the base (11) and used to fix a valve housing (31) of the solenoid valve, a positioning member (13) disposed on the base (11) and used to position the solenoid valve, and a guide member (14) disposed on the positioning member (13) and used to guide a retaining spring (32) of the solenoid valve to change a movement direction; The disassembly mechanism (2) comprises a connection assembly (21) for connecting to a valve sleeve (33) of the solenoid valve, and a drive unit (22) connected to the connection assembly (21).

2. The solenoid valve disassembly device according to claim 1, characterized in that: The positioning member (13) is provided with a through hole (131) for the guide member (14) to pass through.

3. The solenoid valve disassembly device according to claim 1, characterized in that: The positioning member (13) is also provided with a guide fixing member (132) for fixing the guide member (14).

4. The solenoid valve disassembly device according to claim 1, characterized in that: The positioning member (13) is provided with a retaining spring guide hole (133) for guiding out the retaining spring (32) of the electromagnetic valve.

5. The solenoid valve disassembly device according to claim 1, characterized in that: The number of the fastening components (12) is two groups, and each group of the fastening components (12) comprises a base (121) arranged on the base (11) and a valve body fixing member (122) arranged on the base (121), and an accommodation space for accommodating the valve housing (31) of the solenoid valve is formed between the two bases (121).

6. The solenoid valve disassembly device according to claim 1, characterized in that: The connection assembly (21) comprises a fixed clamp (211) and a movable clamp (212), and the fixed clamp (211) is connected to the driving part (22) via a support rod (213).

7. The solenoid valve disassembly device according to claim 6, characterized in that: The movable clamp (212) is movably connected to the support rod (213).

8. The solenoid valve disassembly device according to claim 6, characterized in that: The disassembly mechanism (2) further comprises an elastic member (214) sleeved on the support rod (213), one end of the elastic member (214) being connected to the movable clamp (212), and the other end of the elastic member (214) being connected to the driving part (22).

9. The solenoid valve disassembly device according to claim 6, characterized in that: The fixed clamping head (211) is provided with a fixed clamping portion (215) for connecting to a positioning hole of a valve sleeve (33) of the solenoid valve, and the movable clamping head (212) is provided with a movable clamping portion (216) for connecting to another positioning hole of a valve sleeve (33) of the solenoid valve, and the fixed clamping portion (215) and the movable clamping portion (216) are arranged correspondingly.

10. The solenoid valve disassembly device according to claim 1, characterized in that: The guide member (14) is an elastic steel wire.

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