CN216265755U - Main valve core dismounting tool of electro-hydraulic control equipment - Google Patents
Main valve core dismounting tool of electro-hydraulic control equipment Download PDFInfo
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- CN216265755U CN216265755U CN202122826508.5U CN202122826508U CN216265755U CN 216265755 U CN216265755 U CN 216265755U CN 202122826508 U CN202122826508 U CN 202122826508U CN 216265755 U CN216265755 U CN 216265755U
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- sliding rod
- valve core
- rotating wheel
- inner cavity
- main valve
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Abstract
The utility model discloses a tool for detaching a valve core of a main valve of an electro-hydraulic control device, which comprises a threaded sleeve, wherein the top of the threaded sleeve is connected with a connecting shaft, a sliding rod is coaxially and slidably arranged in the connecting shaft, the upper end of the sliding rod upwards penetrates out of the upper end of the connecting shaft, a pressing plate is fixed on an outer wall ring sleeve of the upwards penetrating part of the sliding rod, and a supporting ring is clamped between the pressing plate and the upper end of the connecting shaft; the lower end of the sliding rod penetrates through the threaded sleeve and is fixedly connected with a connecting seat, an inner cavity is formed in the connecting seat, a rotating wheel is rotatably mounted in the inner cavity, a plurality of supporting plates are arranged in the inner cavity, notches are formed in the positions of the supporting plates on the side wall of the connecting seat for the end parts of the supporting plates to penetrate through, and a hinge rod is hinged between the rotating wheel and the supporting plates; the sliding rod is coaxially and rotatably provided with a rotating shaft, and the lower end of the rotating shaft penetrates into the inner cavity of the connecting seat and is coaxially and fixedly connected with the rotating wheel. The utility model can prevent the problem of valve core damage caused by force concentration at the position of the external thread of the valve core when the valve core of the main valve of the electro-hydraulic control equipment is disassembled.
Description
Technical Field
The utility model relates to the field of mining electro-hydraulic control equipment dismounting tools, in particular to a tool for dismounting a main valve core of an electro-hydraulic control equipment.
Background
In the mining electro-hydraulic control equipment, a plurality of valve cores are installed in a main valve body, each valve core protrudes from the top of the main valve body, an external thread is formed on the outer wall of the protruding head, a section of reducing section is arranged at the position, close to the protruding head, of the inner part of each valve core, the valve core is located in the valve body, a ring groove formed by the outer wall of the reducing section is used for installing a sealing ring, and the inner part of the reducing section is also reduced in diameter relative to the adjacent part, so that enough wall thickness can be guaranteed to meet the integral strength of the valve core. The valve core needs to be replaced and maintained frequently, so that the valve core needs to be detached from the valve body. The prior art has a special disassembling tool as shown in fig. 1, which includes a threaded sleeve 1, the threaded sleeve 1 has an internal threaded hole, the bottom of the threaded sleeve 1 is a sleeve opening, the top is closed, and a connecting shaft 2 is coaxially and fixedly connected, and the connecting shaft 2 is provided with a mounting hole 3 along a radial direction, and is further provided with a rotating rod 4. In the state diagram of fig. 1, the left side is a state diagram of assembling the disassembling tool, and the right side is a state diagram of disassembling the valve core 6, when in work, the thread bush 1 is screwed on the head part of the valve core 6 in the valve body 5, then the rotating rod 4 penetrates through the mounting hole 3 of the connecting shaft 2, and then the rotating rod 4 is held by hand to rotate and pull upwards, so that the valve core 6 is separated from the valve body 5.
When the dismounting tool in the prior art is used, the valve core riser external thread is stressed in the rotating process, and the valve core riser external thread is also stressed in the pulling process, so that the valve core riser thread is easily damaged. If the thread at the riser part of the valve core is damaged, the valve core can not be taken out, and the whole main valve can be scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tool for disassembling a main valve core of an electro-hydraulic control device, which is used for solving the problem that the working force of the tool for disassembling the main valve core of the electro-hydraulic control device in the prior art is completely applied to an external thread at the head of the main valve core cap.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a valve core dismounting tool for a main valve of an electro-hydraulic control device comprises a threaded sleeve with an internal threaded hole, wherein the bottom of the threaded sleeve is provided with a sleeve opening, the top of the threaded sleeve is closed, the top of the threaded sleeve is coaxially and fixedly connected with a connecting shaft, a sliding rod is coaxially and slidably mounted in the connecting shaft, the upper end of the sliding rod upwards penetrates out of the upper end of the connecting shaft, a pressing plate is fixedly sleeved on an outer wall sleeve of the upwards penetrating part of the sliding rod in a sleeved mode, and a supporting ring sleeved outside the sliding rod is clamped between the pressing plate and the upper end of the connecting shaft;
the lower end of the sliding rod downwards penetrates through the top of the threaded sleeve, the lower end of the sliding rod is coaxially and fixedly connected with a connecting seat, an inner cavity is formed in the connecting seat, a rotating wheel is rotatably mounted in the inner cavity, a plurality of supporting plates are radially arranged in the inner cavity and positioned around the rotating wheel respectively, notches communicated with the inner cavity are formed in the side wall of the connecting seat corresponding to the positions of the supporting plates respectively, one end, facing the notches, of each supporting plate penetrates into the notches respectively, a hinge rod is hinged between each rotating wheel and each supporting plate respectively, and the hinge rods are eccentrically hinged on the rotating wheel;
the rotating shaft is coaxially and rotatably arranged in the sliding rod, the lower end of the rotating shaft penetrates out of the lower end of the sliding rod and then penetrates into the inner cavity of the connecting seat, the lower end of the rotating shaft is coaxially and fixedly connected with the rotating wheel, and the upper end of the rotating shaft penetrates out of the upper end of the sliding rod.
Aiming at the characteristic that the valve core has a reducing section, the utility model adds a slide rod, a rotating shaft, a connecting seat and other parts on the basis of the existing disassembling tool, wherein the integral outer diameter of the connecting seat is less than or equal to the inner diameter of the reducing section of the valve core. During operation, the threaded sleeve is screwed on the head of the valve core cap, the sliding rod slides downwards until the connecting seat is positioned below the diameter reducing section of the valve core, then the rotating shaft is rotated, the rotating wheel inside the connecting seat is rotated, the supporting plates are pushed out from the connecting seat, then the sliding rod is pulled upwards, the supporting plates extending out are abutted against the lower end of the diameter reducing section of the valve core, and the supporting ring is installed, so that the sliding rod cannot slide up and down. Then, the connecting shaft is rotated and pulled upwards, the outer thread of the riser part of the valve core is stressed during rotation, and the lower end of the inner reducing section of the valve core is also subjected to upward abutting acting force of the supporting plate except the riser part of the valve core when the connecting shaft is pulled upwards, so that the acting force during pulling is actually shared by different positions of the valve core instead of being only stressed by the outer thread of the riser part of the valve core.
Therefore, when the valve core of the main valve of the electro-hydraulic control equipment is disassembled, the valve core can share the acting force in the disassembling process at different positions, the problem that the valve core is damaged due to the fact that the acting force is concentrated at the position of the external thread of the head of the valve core is avoided, and the valve core has the advantages of being convenient to use and simple to operate.
Drawings
Fig. 1 is a state of the art diagram.
Fig. 2 is a schematic structural view (half sectional view) of the present invention.
Fig. 3 is a top view of the internal structure of the connecting base of the present invention.
Fig. 4 is a diagram of the working state of the present invention.
Detailed Description
The utility model is further illustrated with reference to the following figures and examples.
As shown in figure 2, the tool for detaching the valve core of the main valve of the electro-hydraulic control equipment comprises a threaded sleeve 1 which is vertical in the axial direction and is provided with an internal threaded hole, the bottom of the threaded sleeve 1 is provided with a sleeve opening, the top of the threaded sleeve 1 is closed, a connecting shaft 2 is coaxially and fixedly connected to the top of the threaded sleeve 1, and a rotating handle 7 is fixedly connected to the outer wall of the connecting shaft 2 and is used for workers to rotate and pull the connecting shaft 2 in a handheld mode.
The connecting shaft 2 is internally coaxially provided with a central hole vertically penetrating through the connecting shaft 2, the central hole is a non-circular hole, such as a square hole, and the like, a sliding rod 8 is coaxially and slidably mounted in the central hole of the connecting shaft 2, and the sliding rod 8 is a non-circular rod, such as a square column rod. The upper end of the sliding rod 8 penetrates out of the upper end of the connecting shaft 2, a pressing plate 9 is fixed on the upward penetrating part of the sliding rod 8 in an outer ring sleeved mode, a supporting ring 10 of a half joint structure is arranged between the pressing plate 9 and the upper end of the connecting shaft 2, the supporting ring 10 can be sleeved on the outer portion of the sliding rod 8 between the pressing plate 9 and the upper end of the connecting shaft 2 in a sleeved mode, and the supporting ring 10 can be detached from the installation position.
The lower end of the slide bar 8 sequentially penetrates through the lower end of the connecting shaft 2 and the threaded sleeve 1 downwards and then extends downwards, and the lower end of the slide bar 8 is coaxially and fixedly connected with a disc-shaped connecting seat 11. As shown in fig. 3, the connecting seat 11 has an inner cavity, in which a rotating wheel 12 is coaxially and rotatably installed, and a support plate 13 is slidably installed around the rotating wheel 12 in different radial directions. In the embodiment, the support plates 13 are installed in two symmetrical positions of the rotating wheel 12 by sliding as an example, the side wall of the connecting seat 11 is provided with a notch corresponding to the end position of each support plate 13 and communicated with the inner cavity, the end of each support plate 13 penetrates into the notch respectively, and the support plates 13 are in sliding fit with the notches. Hinge rods 14 are respectively arranged between the rotating wheel 12 and each support plate 13, one end of each hinge rod 14 is hinged to the corresponding support plate 13, the other end of each hinge rod 14 is eccentrically hinged to the rotating wheel 12, and the hinge positions of the two hinge rods 14 on the rotating wheel 12 are mutually symmetrical.
The center of the slide bar 8 is provided with a center through hole, a rotating shaft 15 is coaxially and rotatably arranged in the center through hole, the upper end of the rotating shaft 15 penetrates out from the upper end of the slide bar 8, the lower end of the rotating shaft 15 penetrates into the connecting seat 11 and is coaxially and fixedly connected to the rotating wheel 12, and the upper end of the rotating shaft 15 penetrates out from the upper end of the slide bar 8. The part of the rotating shaft 15 which penetrates upwards is sleeved and fixed with a ring plate 16, and the ring plate 16 is pressed on the upper end of the sliding rod 8, so that the rotating shaft 15 can only rotate and cannot vertically slide.
As shown in figure 3, when in operation, the support ring 10 is firstly taken down, the thread bush 1 is screwed on the head of the valve core 6 on the main valve body 5, and then the slide rod 8 is made to slide downwards until the connecting seat 11 is positioned below the reducing section of the valve core 6. The rotating shaft 15 is rotated, so that the rotating wheel 12 rotates, when the rotating wheel 12 rotates, each support plate 13 is pushed out of the connecting seat 11 through the hinge rod 14, then the slide rod 8 is pulled upwards, and the support plates 13 which extend out are abutted against the lower end of the reducing section of the valve core 6.
Then, the support ring 10 is fitted between the pressing plate 9 and the upper end of the connecting shaft 2, so that the slide bar 8 is fixed against vertical sliding. The valve core 6 can be taken out by rotating and pulling the connecting shaft 2 upwards. At the moment, the lower end of the reducing section is also stressed except for the stress of the outer thread of the riser part of the valve core 6, the upper end of the reducing section and the lower end of the outer thread of the riser part share the acting force of upward pulling, and the stress of the outer thread of the riser part can be reduced.
Because the shape, the size and the like of the inner part of the valve core 6 are fixed, the slide rod 8 needs to slide downwards to a certain distance to enable the connecting seat 11 to be positioned below the diameter-reduced section of the valve core 6, and the calculation can be simply carried out. Similarly, the specific size of the connecting seat 11 only needs to be slightly smaller than the internal size of the diameter-reduced section of the valve core 6, and can also be designed according to the size parameters of the valve core 6.
In the utility model, the support ring 10 adopts a half joint structure and is mainly suitable for main valve spools of different models, and because the internal sizes of the main valve spools of different models can be different, the distances of the sliding rods 8 sliding downwards are different when the valve works. Therefore, the support ring 10 is designed into a detachable half joint structure, and the support ring 10 with proper height can be selected and assembled according to the actual sliding distance of the sliding rod 8 so as to be suitable for main valve spools with different models.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (5)
1. The utility model provides an electricity liquid accuse equipment main valve case extracting tool, is including the thread bush that has the internal thread hole, and the thread bush bottom is fore shaft, top closure, the coaxial fixedly connected with connecting axle in thread bush top, its characterized in that: a sliding rod is coaxially and slidably mounted in the connecting shaft, the upper end of the sliding rod upwards penetrates out of the upper end of the connecting shaft, a pressing plate is fixed on the outer wall of the upwards penetrating part of the sliding rod in a sleeved mode, and a supporting ring sleeved outside the sliding rod is clamped between the pressing plate and the upper end of the connecting shaft;
the lower end of the sliding rod downwards penetrates through the top of the threaded sleeve, the lower end of the sliding rod is coaxially and fixedly connected with a connecting seat, an inner cavity is formed in the connecting seat, a rotating wheel is rotatably mounted in the inner cavity, a plurality of supporting plates are radially arranged in the inner cavity and positioned around the rotating wheel respectively, notches communicated with the inner cavity are formed in the side wall of the connecting seat corresponding to the positions of the supporting plates respectively, one end, facing the notches, of each supporting plate penetrates into the notches respectively, a hinge rod is hinged between each rotating wheel and each supporting plate respectively, and the hinge rods are eccentrically hinged on the rotating wheel;
the rotating shaft is coaxially and rotatably arranged in the sliding rod, the lower end of the rotating shaft penetrates out of the lower end of the sliding rod and then penetrates into the inner cavity of the connecting seat, the lower end of the rotating shaft is coaxially and fixedly connected with the rotating wheel, and the upper end of the rotating shaft penetrates out of the upper end of the sliding rod.
2. The electro-hydraulic control equipment main valve core dismounting tool of claim 1, characterized in that: the outer wall of the connecting shaft is fixedly connected with a rotating handle.
3. The electro-hydraulic control equipment main valve core dismounting tool of claim 1, characterized in that: the supporting plates are annularly and uniformly distributed around the rotating wheel.
4. The electro-hydraulic control equipment main valve core dismounting tool of claim 1, characterized in that: the hinged position of the hinged rod on the rotating wheel is annularly and uniformly distributed.
5. The electro-hydraulic control equipment main valve core dismounting tool of claim 1, characterized in that: the support ring is of a half joint structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122826508.5U CN216265755U (en) | 2021-11-18 | 2021-11-18 | Main valve core dismounting tool of electro-hydraulic control equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122826508.5U CN216265755U (en) | 2021-11-18 | 2021-11-18 | Main valve core dismounting tool of electro-hydraulic control equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216265755U true CN216265755U (en) | 2022-04-12 |
Family
ID=81008899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122826508.5U Active CN216265755U (en) | 2021-11-18 | 2021-11-18 | Main valve core dismounting tool of electro-hydraulic control equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216265755U (en) |
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2021
- 2021-11-18 CN CN202122826508.5U patent/CN216265755U/en active Active
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