CN216555612U - Large valve servomotor for gas pipeline - Google Patents
Large valve servomotor for gas pipeline Download PDFInfo
- Publication number
- CN216555612U CN216555612U CN202123296839.9U CN202123296839U CN216555612U CN 216555612 U CN216555612 U CN 216555612U CN 202123296839 U CN202123296839 U CN 202123296839U CN 216555612 U CN216555612 U CN 216555612U
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- CN
- China
- Prior art keywords
- servomotor
- pin shaft
- cylinder
- cylinder body
- gas pipeline
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010248 power generation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model provides a servomotor for a large-sized valve of a gas pipeline, which comprises a servomotor cylinder body, a pin shaft, a cylinder barrel and a base; the bottom of the servomotor cylinder body is provided with a hinged ring; oil flow channels are respectively formed at two ends of the pin shaft, and a cylinder barrel is sleeved outside the two ends of the pin shaft; the cylinder barrels on the two sides are respectively provided with an annular groove corresponding to the outlet of the oil flow channel, and the cylinder barrels on the two sides are respectively provided with an oil port corresponding to the annular groove; each oil port is respectively connected with a seamless steel pipe, wherein the seamless steel pipe on one side is communicated with a rod cavity of the servomotor cylinder body through a first elbow, and the seamless steel pipe on the other side is communicated with a rodless cavity of the servomotor cylinder body through a second elbow. The utility model connects the rod cavity and the rodless cavity of the servomotor cylinder body through the seamless steel pipe and the elbow, thoroughly solves the problem of personal and equipment safety endangered by the pipe burst accident possibly generated by the high-pressure hose of the servomotor, reduces the economic loss caused by accident shutdown, has simple processing, and simultaneously, the high-pressure oil pipes of the rod cavity and the rodless cavity are respectively arranged at the two sides of the oil cylinder, thereby being more convenient for maintenance.
Description
Technical Field
The utility model relates to the technical field of hydroelectric power generation, in particular to a gas pipeline large-scale valve servomotor.
Background
When the thermal power generation or hydroelectric generating set operates, the cylinder barrel and the high-pressure seamless steel pipe thereof can swing along the lower hanging head as a whole along with the opening and closing actions of the water inlet valve as a servomotor for opening and closing the water inlet valve. Generally, the high-pressure oil flow of the water inlet valve oil pressure device is connected with a rod cavity and a rodless cavity of a cylinder barrel by a high-pressure hose.
The high-pressure hose is often distorted and deformed due to the frequent opening and closing actions of the water inlet valve, and fatigue damage is inevitable, so that a pipe explosion accident can occur, oil is sprayed out to pollute the environment, cause the shutdown of a unit to influence power generation and cause economic loss, and when the pipe is exploded, the personal safety and the equipment safety can be endangered if someone is on the site.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides the gas pipeline large-scale valve servomotor which can effectively avoid pipe explosion accidents and avoid endangering the personal safety and the equipment safety.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a servomotor for a large valve of a gas pipeline comprises a servomotor cylinder body, a pin shaft, a cylinder barrel and a base; the bottom of the servomotor cylinder body is provided with a hinged ring; the hinge ring is hinged with a fixed lug plate through a pin shaft, and the limiting plate is fixed at the outer end of the pin shaft; oil flow channels are respectively formed in two ends of the pin shaft, and a cylinder barrel is sleeved outside the two ends of the pin shaft; the cylinder barrels on the two sides are respectively provided with an annular groove corresponding to the outlet of the oil flow channel, and the cylinder barrels on the two sides are respectively provided with an oil port corresponding to the annular groove; each oil port is respectively connected with a seamless steel pipe, the seamless steel pipe of the oil port on one side is communicated with a rod cavity of the servomotor cylinder body through a first elbow, and the seamless steel pipe of the oil port on the other side is communicated with a rodless cavity of the servomotor cylinder body through a second elbow.
Preferably, the bottom of the hinge ring is provided with a base.
Preferably, the pin shaft and the fixed lug plate are fixed through a locking plate, and the locking plate is connected and fixed with the fixed lug plate through a locking plate screw.
Preferably, a hanging head is arranged at the top of the piston rod.
Preferably, limiting plates are fixed to the two ends of the pin shaft corresponding to the outer end faces of the cylinder barrel, and the limiting plates and the pin shaft are fixed through limiting plate screws.
Preferably, each side cylinder and the pin roll are respectively and symmetrically provided with a combined sealing ring at two axial sides of the annular groove.
Furthermore, the number of the combined sealing rings in each side cylinder barrel is 4.
Preferably, the limiting plate and the pin shaft are fixed through a limiting plate screw.
The servomotor has the advantages that the seamless steel pipe, the elbow, the oil flow channel, the cylinder barrel and the combined sealing ring are used for replacing a high-pressure hose, so that the servomotor body, the seamless steel pipe with the rod cavity and the seamless steel pipe without the rod cavity, the cylinder barrel and the like form an integral part, the integral part rotates along the base pin shaft at an angle, the high-pressure pipeline fixed outside is connected with the oil flow channel on the pin shaft, and the purpose of transferring hydraulic oil is achieved. The hydraulic cylinder has the advantages that personal and equipment safety endangered by a pipe burst accident of the servomotor caused by a high-pressure hose is thoroughly solved, economic loss caused by accident shutdown is reduced, the hydraulic cylinder is simple to process, and meanwhile, the high-pressure oil pipes with the rod cavities and the high-pressure oil pipes without the rod cavities are respectively arranged on the two sides of the oil cylinder, so that the hydraulic cylinder is more convenient to maintain.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.
Fig. 2 is an enlarged view taken along direction a in fig. 1.
Fig. 3 is a partial enlarged view in the direction B in fig. 1.
In the figure, the hydraulic servomotor device comprises an upper hanging head 1, an upper hanging head 2, a piston rod 3, a servomotor cylinder 4, a piston 5, a second elbow 6, a second seamless steel pipe 7, a locking plate 8, a pin shaft 9, a base 10, a cylinder barrel 11, a sealing ring 12, an oil flow channel 13, a limiting plate 14, an annular groove 15, a fixing lug plate 16, a hinge ring 17, a first seamless steel pipe 18, a first elbow 19, a limiting plate screw 20 and a locking plate screw.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams illustrating the basic structure of the present invention only in a schematic manner, and thus show only the constitution related to the present invention, and directions and references (e.g., upper, lower, left, right, etc.) may be used only to help the description of the features in the drawings. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
The utility model discloses a gas pipeline large-scale valve servomotor as shown in figures 1 to 3, which is a preferred embodiment of the utility model. The servomotor comprises a servomotor cylinder body 3, a pin shaft 8, a cylinder barrel 10 and a base 9. The bottom of the servomotor cylinder body 3 is provided with a hinged ring 16; the hinged ring 16 is hinged with the fixed lug plate 15 through a pin shaft 8, a through hole is arranged in the middle of the limiting plate 13, the inner diameter of the through hole ensures that an external high-pressure seamless steel pipe penetrates through the through hole, and the through hole is fixedly connected with the pin shaft 8 through a limiting plate screw 19. Oil flow channels 12 are respectively formed in two ends of the pin shaft 8, and a cylinder barrel 10 is sleeved outside the two ends of the pin shaft 8; the cylinder barrel 10 is provided with annular grooves 14 corresponding to the outlet positions of the oil flow channels 12 respectively, the annular grooves on the cylinder barrel are matched with the oil flow channels 12 on the pin shaft to realize slight forward and backward rotation, the oil flow flux is ensured, and the cylinder barrel is provided with oil ports corresponding to the annular grooves 14 respectively; the oil port on one side is connected with a first seamless steel pipe 17, the first seamless steel pipe 17 is communicated with the rod cavity of the servomotor cylinder body through a first elbow 18, the oil port on the other side is connected with a second seamless steel pipe 6, and the second seamless steel pipe 6 is communicated with the rod cavity of the servomotor cylinder body through a second elbow 5.
In this embodiment, a hanging head 1 is provided on the top of the piston rod 2, and the hanging head 1 is connected with an operating lug of the pivot of the valve body of the water inlet valve. The top of base 9 is equipped with fixed otic placode 15, fixed otic placode 15 is provided with two, the welding is on base 9, articulated ring 16 is established between two fixed otic placodes 15, then fix through round pin axle 8, round pin axle 8 passes fixed otic placode 15 and articulated with articulated ring 16, limiting plate 13 passes through limiting plate screw 19 and round pin axle 8 rigid coupling, round pin axle 8 is fixed through jam plate screw 20 on jam plate 7 and the jam plate 7 with fixed otic placode 15, prevent round pin axle 8 circumferential direction and axial displacement. The servomotor cylinder body 3, the seamless steel pipe, the first elbow 18, the second elbow 5 and the two oil ports of the cylinder barrel 10 are respectively connected and fixed to form a whole, and swing around the pin shaft 8 together through the hinge ring 13, and the pin shaft 8 does not rotate. The cylinder 10 and the pin shaft 8 are directly provided with 8 sealing rings 11, and the number of the sealing rings 11 is 8 (4 on each side).
And oil flow channels 12 are arranged at two ends of the pin shaft 8, one ends of the oil flow channels 12 are respectively connected with a high-pressure pipeline oil pipe externally connected with the pin shaft 8, and the other ends of the oil flow channels 12 are respectively connected with a rod cavity and a rodless cavity of the servomotor cylinder body 3 through an annular groove 14 and a seamless steel pipe. The servomotor cylinder 3, the seamless steel pipe fixed on the servomotor cylinder 3, the first elbow 18, the second elbow 5 and the cylinder barrel 10 accessories swing along the pin shaft 8, so that the pressure oil is conveyed from the fixed pipeline to the two cavities of the swing servomotor cylinder 3.
The servomotor is designed in such a way, the seamless steel pipe, the first elbow 18, the second elbow 5, the oil flow channel 12, the cylinder barrel 10 and the sealing ring 11 are adopted to replace the original high-pressure hose, so that the servomotor cylinder body 3, the seamless steel pipe with a rod cavity and a rodless cavity thereof, the cylinder barrel 10 and the like form an integral part, and the integral part rotates along the base 9 and the pin shaft 8 at an angle, so that the high-pressure pipeline fixed outside is connected with the oil flow channel 12 on the pin shaft 8, and the purpose of transferring hydraulic oil is achieved; the servomotor cylinder completely solves the problem of personal and equipment safety endangered by a pipe burst accident possibly caused by a high-pressure hose, reduces economic loss caused by accident shutdown, is simple to process, and meanwhile, high-pressure oil pipes formed by seamless steel pipes and the like corresponding to a rod cavity and a rodless cavity can be respectively arranged at two sides of the servomotor cylinder body 3, so that the maintenance is more convenient.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. The utility model provides a large-scale valve servomotor of gas pipeline which characterized in that: comprises a servomotor cylinder body (3), a pin shaft (8), a cylinder barrel (10) and a base (9); the bottom of the servomotor cylinder body (3) is provided with a hinged ring (16); the hinge ring (16) is hinged with a fixed lug plate (15) through a pin shaft (8), and a limiting plate (13) is fixed at the outer end of the pin shaft (8); oil flow channels (12) are respectively formed in two ends of the pin shaft (8), and cylinder barrels (10) are sleeved outside the two ends of the pin shaft (8); the cylinder barrels (10) on the two sides are respectively provided with an annular groove (14) corresponding to the outlet position of the oil flow channel (12), and the cylinder barrels on the two sides are respectively provided with an oil port corresponding to the annular groove (14); each oil port is respectively connected with a seamless steel pipe, the seamless steel pipe of the oil port on one side is communicated with a rod cavity of the servomotor cylinder body through a first elbow (18), and the seamless steel pipe of the oil port on the other side is communicated with a rodless cavity of the servomotor cylinder body through a second elbow (5).
2. The large-scale valve servomotor of a gas pipeline according to claim 1, wherein: the bottom of the hinge ring (16) is provided with a base (9).
3. The large-scale valve servomotor of a gas pipeline according to claim 1, wherein: the pin shaft (8) and the fixed lug plate (15) are fixed through a locking plate (7), and the locking plate (7) is fixedly connected with the fixed lug plate (15) through a screw.
4. The large-scale valve servomotor of a gas pipeline according to claim 1, wherein: a piston rod (2) is arranged in the servomotor cylinder body (3), and a hanging head (1) is arranged at the top of the piston rod (2).
5. The large-scale valve servomotor of a gas pipeline according to claim 1, wherein: and limiting plates (13) are fixed at the two ends of the pin shaft (8) corresponding to the outer end faces of the cylinder barrel (10).
6. The large-scale valve servomotor of a gas pipeline according to claim 1, wherein: and sealing rings are symmetrically arranged on the two axial sides of the annular groove (14) corresponding to the cylinder barrel (10) and the pin shaft (8) on each side respectively.
7. The large-scale valve servomotor of a gas pipeline according to claim 6, wherein: the number of the sealing rings in the cylinder barrel on each side is 4.
8. The large-scale valve servomotor of a gas pipeline according to claim 5, wherein: the limiting plate (13) and the pin shaft (8) are fixed through a limiting plate screw (19).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123296839.9U CN216555612U (en) | 2021-12-24 | 2021-12-24 | Large valve servomotor for gas pipeline |
| JP2022001364U JP3238227U (en) | 2021-12-24 | 2022-04-26 | Servo motor for large valves for gas pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123296839.9U CN216555612U (en) | 2021-12-24 | 2021-12-24 | Large valve servomotor for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216555612U true CN216555612U (en) | 2022-05-17 |
Family
ID=81557520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123296839.9U Expired - Fee Related CN216555612U (en) | 2021-12-24 | 2021-12-24 | Large valve servomotor for gas pipeline |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3238227U (en) |
| CN (1) | CN216555612U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028353A (en) * | 2023-07-28 | 2023-11-10 | 中国船舶集团有限公司第七一三研究所 | Cylinder body, hydraulic cylinder and air cylinder |
-
2021
- 2021-12-24 CN CN202123296839.9U patent/CN216555612U/en not_active Expired - Fee Related
-
2022
- 2022-04-26 JP JP2022001364U patent/JP3238227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117028353A (en) * | 2023-07-28 | 2023-11-10 | 中国船舶集团有限公司第七一三研究所 | Cylinder body, hydraulic cylinder and air cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3238227U (en) | 2022-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |