CN114833550A - Clamping and screwing device for oil taking valve of transformer - Google Patents
Clamping and screwing device for oil taking valve of transformer Download PDFInfo
- Publication number
- CN114833550A CN114833550A CN202111295452.3A CN202111295452A CN114833550A CN 114833550 A CN114833550 A CN 114833550A CN 202111295452 A CN202111295452 A CN 202111295452A CN 114833550 A CN114833550 A CN 114833550A
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- Prior art keywords
- clamping
- screwing
- jacking
- valve
- inclined plane
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000000605 extraction Methods 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 10
- 238000010030 laminating Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 41
- 210000000078 claw Anatomy 0.000 description 6
- 238000004804 winding Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The application discloses a clamping screwing device for an oil taking valve of a transformer, which comprises a power mechanism and a screwing mechanism. The power mechanism is used for providing pushing force in the design direction and rotating force around the design direction. The screwing mechanism is connected with the power mechanism and used for converting the driving force of the power mechanism into a clamping force for enabling the screwing mechanism to clamp the oil taking valve when the power mechanism pushes the screwing mechanism to the oil taking valve, and loosening the oil taking valve when the power mechanism drives the screwing mechanism to move towards the direction far away from the oil taking valve. The clamping screwing device can automatically assemble and disassemble oil taking valves of various sizes, and is more convenient and quicker to operate.
Description
Technical Field
The application relates to the technical field of transformer maintenance, in particular to a clamping and screwing device for an oil valve of a transformer.
Background
Power transformers are the infrastructure of substations, and large power transformers operating in the power grid are typically oil-immersed power transformers. On one hand, the insulating oil of the power transformer is used as an internal insulating medium to ensure that good insulation is formed between windings and between the windings and the grounded iron core and the grounded box shell; on the other hand, the heat-dissipating medium is used as a heat-dissipating medium to transfer heat dissipated by the transformer core, the winding and the like to a cooling medium. Therefore, the insulating oil plays an important role in ensuring the normal and safe operation of the power transformer. At present, the oil taking valve of the transformer is basically screwed manually and is difficult to operate.
Disclosure of Invention
The application provides a tight device of twisting that revolves that presss from both sides that is used for transformer to get the fuel tap can realize auto-control handling to many size kinds get the fuel tap.
The embodiment of the application provides a clamping and screwing device for an oil extraction valve of a transformer, which comprises a power mechanism and a screwing mechanism. The power mechanism is used for providing pushing force in a design direction and rotating force in the design direction. The screwing mechanism is connected with the power mechanism and used for converting a driving force of the power mechanism into a clamping force for enabling the screwing mechanism to clamp the oil taking valve when the power mechanism pushes the screwing mechanism to the oil taking valve, and loosening the oil taking valve when the power mechanism drives the screwing mechanism to move in a direction far away from the oil taking valve.
In some embodiments, the screwing mechanism comprises at least three jaws, each jaw defines a containing space for containing the oil extraction valve and is mounted in an openable and closable manner, and each jaw is used for clamping and loosening the oil extraction valve correspondingly through folding and unfolding.
In some embodiments, each clamping jaw has a clamping surface, and each clamping surface is used for clamping the oil extraction valve and is attached to the outer wall surface of the oil extraction valve.
In some of these embodiments, a first end of each jaw is movably mounted and a second end disposed opposite the first end is used to clamp and unclamp the fuel access valve by collapsing and expanding the valve. The screwing mechanism further comprises a supporting piece, the supporting piece is located in the containing space and rotatably connected with the middle of each clamping jaw, and the supporting piece is used for driving the first ends of the clamping jaws to move outwards and the second ends to be folded through moving towards the direction far away from the oil taking valve after abutting against the oil taking valve, so that the pushing force is converted into the clamping force.
In some embodiments, the screwing mechanism further comprises a jacking member, the jacking member has at least three jacking inclined surfaces, each jacking inclined surface forms an expansion structure, and each jacking inclined surface is used for supporting the first end of each clamping jaw respectively, so that the first end of each clamping jaw can move.
In some embodiments, each jaw has a positioning inclined surface, each positioning inclined surface forms an expanding structure, each positioning inclined surface is used for supporting the end part of each positioning inclined surface on each jacking inclined surface when each jaw is opened, and each positioning inclined surface is supported by the end part of each jacking inclined surface when each jaw is closed.
In some embodiments, the screwing mechanism further comprises at least three elastic members, each elastic member being used for connecting each jaw with the jacking member.
In some embodiments, two ends of each elastic member are respectively connected to the middle of the positioning inclined plane of each clamping jaw and the middle of the jacking inclined plane of each jacking member.
In some embodiments, the power mechanism includes a hydraulic cylinder and a push rod, the push rod is connected to the hydraulic cylinder, and the push rod is used for being connected with the screwing mechanism.
In some of these embodiments, the push rod is connected to a top support of the screw mechanism.
According to the embodiment of the application, the clamping screwing device for the transformer oil extraction valve comprises a power mechanism and a screwing mechanism. The power mechanism provides a driving force in a design direction and a rotational force around the design direction. The screwing mechanism is connected with the power mechanism and used for converting a driving force of the power mechanism into a clamping force for enabling the screwing mechanism to clamp the oil taking valve when the power mechanism pushes the screwing mechanism to the oil taking valve, and loosening the oil taking valve when the power mechanism drives the screwing mechanism to move in a direction far away from the oil taking valve. The clamping screwing device can automatically assemble and disassemble oil taking valves of various sizes, and is more convenient and quicker to operate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of an embodiment of the present application showing open jaws of a clamping screw-on device;
fig. 2 is a schematic structural view of the clamping screw device according to the embodiment of the present application when the jaws are closed.
Detailed description of the preferred embodiment
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Referring to fig. 1-2, the embodiment of the present application provides a clamping screwing device 1 for a transformer oil extraction valve, which includes a power mechanism 10 and a screwing mechanism 20.
The power mechanism 10 is used to provide a pushing force in the front-rear direction and a rotational force around the front-rear direction. The power mechanism 10 may include a hydraulic cylinder 11 and a push rod 12.
The hydraulic cylinder 11 is used to provide hydraulic force in the front-rear direction. The hydraulic cylinder 11 is provided with hydraulic oil passages 111 on both sides of the hydraulic plunger 110. Wherein the moment of the hydraulic acting force can be 40-50 N.m.
The push rod 12 is used to transmit hydraulic force to the screwing mechanism 20. The push rod 12 is disposed in the front-rear direction. The push rod 12 is movably disposed in the hydraulic cylinder 11 via a hydraulic plunger 110. At this time, the push rod 12 advances or retreats by the hydraulic pressure of the hydraulic cylinder 11. Further, the front end of the push rod 12 is connected to the screw mechanism 20. At this time, the push rod 12 drives the screwing mechanism 20 to advance or retreat.
The screwing mechanism 20 is used for converting the pushing force of the power mechanism 10 into a clamping force which enables the screwing mechanism 20 to clamp the oil fetching valve when the power mechanism 10 pushes the screwing mechanism 20 to the oil fetching valve, and loosening the oil fetching valve when the power mechanism 10 drives the screwing mechanism 20 to move in a direction far away from the oil fetching valve.
To achieve the above purpose, the screwing mechanism 20 may comprise at least three jaws 21, such as three, six, each jaw 21 being used for clamping and releasing the fuel delivery valve by closing and opening the corresponding valve.
The jaws 21 are uniformly arranged around a horizontal line extending in the front-rear direction, and the space between the jaws 21 is a receiving space 22, and the receiving space 22 is used for receiving an oil valve. At this time, the oil extraction valve enters the accommodation space 22 from the front of the accommodation space 22.
Each jack catch 21 can be installed in an openable and closable manner, so that each jack catch 21 can be folded and unfolded, thereby clamping and releasing the oil taking valve, being suitable for oil taking valves with different sizes and realizing the assembly and disassembly of the oil taking valves with different sizes. The front end of each claw 21 can be used for correspondingly clamping and loosening the middle part of the oil taking valve by folding and unfolding, and can be rotatably arranged around the central line vertical to each claw 21, and the rear end can be movably arranged.
In addition, each of the claws 21 may be a vertical sheet-like structure extending in the front-rear direction. The front end of each dog 21 may have a wedge-shaped surface 210, and each wedge-shaped surface 210 is used for improving the stability of each dog 21 after clamping the oil extraction valve. The middle part of each clamping jaw 21 may have a clamping surface 211, and each clamping surface 211 is used for clamping the oil valve and is attached to the outer wall surface of the oil valve. The rear end of each jaw 21 may have a positioning slope 212, and each positioning slope 212 forms an expanding structure gradually expanding from front to rear.
The screwing mechanism 20 may further include a support 23, and the support 23 is configured to drive the rear end of each jaw 21 to move outwards and the front end to close by moving away from the fuel metering valve after abutting against the fuel metering valve, so that the driving force is converted into the clamping force.
To achieve the above object, a support 23 is located in the receiving space 22, and the support 23 is rotatably connected to a middle portion of each jaw 21 around a center line perpendicular to each jaw 21. At this time, since the range of action of each dog 21 on the oil valve is located in front of the support 23, the support 23 does not interfere with each dog 21 and the valve when each dog 21 clamps the oil valve.
The support 23 may be a vertical sheet structure perpendicular to a horizontal line extending in the front-rear direction.
The screwing mechanism 20 may further include a jacking member 24, the jacking member 24 has at least three jacking inclined surfaces 240, the number of the jacking inclined surfaces 240 may be one-to-one corresponding to the number of the jaws 21, and each jacking inclined surface 240 is used for supporting the rear end of each jaw 21, so that the rear end of each jaw 21 is movable.
To achieve the above object, the jacking slopes 240 are arranged around a horizontal line extending in the horizontal direction. The jacking inclined planes 240 may be connected or disconnected. And each of the jacking slope surfaces 240 forms an expanding structure gradually expanding from front to rear so that the rear end of each of the jaws 21 slides along each of the jacking slope surfaces 240. When the claws 21 are opened, the end of each positioning inclined surface 212 is supported by each jacking inclined surface 240, and when the claws 21 are closed, each positioning inclined surface 212 is supported by the end of each jacking inclined surface 240.
In addition, the top holder 24 may have a circular truncated cone structure with a center line extending in the front-rear direction. Under the above conditions, the rear center of the knock out member 24 is connected to the push rod 12. Each jaw 21 is arranged around the centre line of the lifter 24.
The screwing mechanism 20 may further include at least three elastic members 25, the number of the elastic members 25 may be one-to-one corresponding to the number of the jaws 21, and each elastic member 25 is used for connecting each jaw 21 with the top holder 24.
Each elastic member 25 may be a return spring. Both ends of each elastic member 25 may be respectively connected to the middle of the positioning slope 212 of each jaw 21 and the middle of the knock slope 240 of each knock-out member 24.
In summary, in the clamping screwing device 1 of the present application, the size of the opening of each jaw 21 is controlled by adjusting the position of the plunger of the hydraulic cylinder 11. Specifically, when the hydraulic plunger 110 is advanced forward, the respective claws 21 are gradually closed, and stop moving when coming into contact with the outer peripheral wall of the oil feed valve (the outer peripheral wall of the oil feed valve may have a hexagonal structure, that is, a regular hexagonal prism surface). However, the hydraulic pressure is gradually increased to the maximum pressure, and the hydraulic pressure is converted into the clamping force of each jaw 21 through the transmission of the structure. Wherein, the required clamp force according to getting the fuel tap sets for hydraulic pressure to guarantee can screw up or unscrew and get the fuel tap. In addition, the clamping screwing device 1 can adapt to different oil extraction valve sizes and can realize reverse locking.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meaning of the above terms according to their specific circumstances.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A clamping and screwing device for a transformer oil extraction valve, characterized by comprising:
a power mechanism for providing a driving force in a design direction and a rotational force around the design direction; and
the screwing mechanism is connected with the power mechanism and used for converting a pushing force of the power mechanism into a clamping force for enabling the screwing mechanism to clamp the oil taking valve when the power mechanism pushes the screwing mechanism to the oil taking valve, and loosening the oil taking valve when the power mechanism drives the screwing mechanism to move in a direction far away from the oil taking valve.
2. The clamping screw according to claim 1,
the screwing mechanism comprises at least three clamping jaws, each clamping jaw defines an accommodating space for accommodating the oil extraction valve and can be installed in an opening and closing mode, and each clamping jaw is used for correspondingly clamping and loosening the oil extraction valve through folding and unfolding.
3. The clamping screw according to claim 2,
each jack catch all has the joint face, each joint face all is used for pressing from both sides tight get the fuel tap, and with get the outer wall laminating of fuel tap.
4. The clamping screw according to claim 2,
the first end of each clamping jaw is movably arranged, and the second end opposite to the first end is used for correspondingly clamping and loosening the oil taking valve through folding and unfolding;
the screwing mechanism further comprises a supporting piece, the supporting piece is located in the containing space and rotatably connected with the middle of each clamping jaw, the supporting piece is used for driving the first end of each clamping jaw to move outwards through moving towards the direction far away from the oil taking valve after abutting against the oil taking valve, and the second end of each clamping jaw is folded, so that the pushing force is converted into the clamping force.
5. The clamping screw according to claim 4,
the screwing mechanism further comprises a jacking piece, the jacking piece is provided with at least three jacking inclined planes, each jacking inclined plane forms an expansion structure, and each jacking inclined plane is used for supporting the first end of each clamping jaw so that the first end of each clamping jaw can move.
6. The clamping screw according to claim 5,
each clamping jaw is provided with a positioning inclined plane, each positioning inclined plane forms an expansion structure, each positioning inclined plane is used for supporting the end part of each positioning inclined plane on each jacking inclined plane when each clamping jaw is opened, and each positioning inclined plane is supported by the end part of each jacking inclined plane when each clamping jaw is folded.
7. The clamping screw according to claim 5,
the screwing mechanism further comprises at least three elastic pieces, and each elastic piece is used for connecting each clamping jaw with the jacking piece.
8. The clamping screw according to claim 7,
two ends of each elastic piece are respectively connected to the middle of the positioning inclined plane of each clamping jaw and the middle of the jacking inclined plane of each jacking piece.
9. The clamping screw according to claim 1,
the power mechanism comprises a hydraulic cylinder and a push rod, the push rod is connected to the hydraulic cylinder, and the push rod is used for being connected with the screwing mechanism.
10. The clamping screw as claimed in claim 9,
the push rod is connected with the jacking piece of the screwing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111295452.3A CN114833550B (en) | 2021-11-03 | 2021-11-03 | Clamping screwing device for transformer oil taking valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111295452.3A CN114833550B (en) | 2021-11-03 | 2021-11-03 | Clamping screwing device for transformer oil taking valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114833550A true CN114833550A (en) | 2022-08-02 |
| CN114833550B CN114833550B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111295452.3A Active CN114833550B (en) | 2021-11-03 | 2021-11-03 | Clamping screwing device for transformer oil taking valve |
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| Country | Link |
|---|---|
| CN (1) | CN114833550B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117584103A (en) * | 2024-01-19 | 2024-02-23 | 中国电力科学研究院有限公司 | Oil extraction robot and oil extraction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300674A (en) * | 1998-04-21 | 1999-11-02 | Kondo Seisakusho:Kk | Fluid pressure hand |
| CN205704251U (en) * | 2016-04-28 | 2016-11-23 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Solid and reliable type mechanical hand |
| CN106553192A (en) * | 2015-09-29 | 2017-04-05 | 褚秀清 | A kind of light hydraulic translation conveying robot |
| CN109895127A (en) * | 2017-12-11 | 2019-06-18 | 西安知点信息科技有限公司 | A kind of transhipment gripper |
| CN210148088U (en) * | 2019-07-05 | 2020-03-17 | 西安航空职业技术学院 | Double-station manipulator |
-
2021
- 2021-11-03 CN CN202111295452.3A patent/CN114833550B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300674A (en) * | 1998-04-21 | 1999-11-02 | Kondo Seisakusho:Kk | Fluid pressure hand |
| CN106553192A (en) * | 2015-09-29 | 2017-04-05 | 褚秀清 | A kind of light hydraulic translation conveying robot |
| CN205704251U (en) * | 2016-04-28 | 2016-11-23 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Solid and reliable type mechanical hand |
| CN109895127A (en) * | 2017-12-11 | 2019-06-18 | 西安知点信息科技有限公司 | A kind of transhipment gripper |
| CN210148088U (en) * | 2019-07-05 | 2020-03-17 | 西安航空职业技术学院 | Double-station manipulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117584103A (en) * | 2024-01-19 | 2024-02-23 | 中国电力科学研究院有限公司 | Oil extraction robot and oil extraction method |
| CN117584103B (en) * | 2024-01-19 | 2024-04-09 | 中国电力科学研究院有限公司 | Oil extraction robot and oil extraction method |
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| Publication number | Publication date |
|---|---|
| CN114833550B (en) | 2024-05-24 |
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