CN2800019Y - Thrust buffering apparatus - Google Patents
Thrust buffering apparatus Download PDFInfo
- Publication number
- CN2800019Y CN2800019Y CN 200520072704 CN200520072704U CN2800019Y CN 2800019 Y CN2800019 Y CN 2800019Y CN 200520072704 CN200520072704 CN 200520072704 CN 200520072704 U CN200520072704 U CN 200520072704U CN 2800019 Y CN2800019 Y CN 2800019Y
- Authority
- CN
- China
- Prior art keywords
- vestibule
- axial
- thrust
- stem mut
- valve
- Prior art date
- 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
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- Lift Valve (AREA)
- Details Of Valves (AREA)
Abstract
The utility model relates to a thrust buffering device, which belongs to a component of the technical field of a valve device used for industrial and mining enterprises. The utility model is characterized in that the thrust buffering device is composed of a shell body, two supporting seats which are arranged in an axial cavity of the shell body, an elastic element, and a valve rod nut, wherein after the utility model is assembled with an electric execution mechanism or device, the axial thrust is generated by the valve rod nut, the elastic element is squeezed by the supporting seats which are driven by the valve rod nut, the axial displacement and a small amount of radial expansion of the elastic element can be generated, and a small amount of displacement of the valve rod nut can also be generated under the stress condition at that moment. Thereby, the displacement compensation is carried out when a valve rod is in a heating and expansion state, the kinetic energy can also be absorbed when a valve is quickly closed, the impact is slowed down, and the function of valve protection can be performed.
Description
Technical field
The utility model relates to a kind of thrust damping device, belongs to a kind of parts of industrial and mining enterprise with the valving technical field
Background technique
For some industrial and mining enterprise, a large amount of switch valves and modulating valve are arranged on its power conduit, chemical industry, the petroleum pipeline, these valves are controlled by supporting with it electric valve executing mechanism or electric device for valve, this class electric actuator or device are when thrust output, because effect of inertia can produce impact to valve during to end position in open and close, can produce linear expansion when valve rod is heated in addition, expansive force possibility bending valve rod, thereby the working life of reducing valve.
Summary of the invention
The purpose of this utility model be at existing electric actuator or device when the thrust output; because effect of inertia can produce impact to valve during to end position in open and close; can produce linear expansion when valve rod is heated in addition; expansive force possibility bending valve rod; thereby damage valve or reduce the valve deficiency in working life; absorb kinetic energy when being provided at valve opening and closed position; slow down impact; or when valve rod expanded by heating state, carry out bit shift compensation, play a kind of thrust damping device of Protective valve gate action.
The purpose of this utility model is achieved through the following technical solutions, a kind of thrust damping device, it is characterized in that described device is by the housing with axial vestibule, the built-in supporting base up and down of going into of the axial vestibule of housing, two supporting bases and the housing shaft elastic element between vestibule, the Stem Mut with axial internal thread of inserting in the two supporting base endoporus constitutes.
The utility model is a kind of special output unit of electric actuator or device; by housing; two supporting bases that housing shaft is inserted in vestibule; elastic element and Stem Mut constitute; after electric actuator or device assembling; produce end thrust by Stem Mut; Stem Mut drives supporting base extruding elastic element; make elastic element produce axial displacement and a small amount of radial expansion; this moment, Stem Mut also produced slight displacement under force-bearing situation; thereby when valve rod expanded by heating state, carry out bit shift compensation; also can when the valve quick closedown, absorb kinetic energy; slow down impact, play the effect of protection valve.
Description of drawings
Accompanying drawing is the axial sectional structure schematic representation of the utility model;
Among the figure, 1 volution, 2 locking nuts, 3 Stem Muts, 4 housings, 5 supporting bases, 6 screws, 7 bullet pads, 8 bearing races, 9 cages for needles, 10 bearing pressure pads, 11 end ring, 12 outer shrouds, 13 interior rings, 14 Cock screws.
Embodiment
Further specify the utility model in conjunction with the accompanying drawings and embodiments, the utility model is by housing 4, supporting base 5, Stem Mut 3 and elastic element are formed, housing 4 is axially analysed and observe and seemingly is I shape, has axial vestibule, the upper end vestibule is the ladder bellmouth orifice, the stage casing of vestibule has step, two end part are provided with supporting base 5 about in the step hole, the outer end of two supporting bases 5 is provided with bearing race 8, cages for needle 9, bearing pressure pad 10, be provided with between the vestibule of two supporting bases 5 and housing 4 by end ring 11, the elastic element that outer shroud 12 and interior ring 13 constitute, Stem Mut 3 has axial internal thread, the epimere periphery of Stem Mut 3 has step surface, after Stem Mut 3 is inserted the endoporus of two supporting bases 5, its step surface touches the exterior edge face of upper branching holder 5 and the exterior edge face of bearing pressure pad 10, housing 4 bottom vestibule inward turnings connect volution 1, the underpart of Stem Mut 3 locking nut 2 that spins, and through Cock screw 14 tightenings.After electric actuator or device assembling, produce end thrust by Stem Mut 3 during work, Stem Mut 3 drives supporting base 5 extruding elastic element end ring 11, end ring 11 produces axial displacement, extruding elastic element outer shroud 12, outer shroud 12 also produces a small amount of radial expansion when producing axial displacement, Stem Mut 3 also produces slight displacement under force-bearing situation, carry out bit shift compensation when valve rod expanded by heating state.
Claims (5)
1, a kind of thrust damping device, it is characterized in that described device is by the housing with axial vestibule, the built-in supporting base up and down of going into of the axial vestibule of housing, two supporting bases and the housing shaft elastic element between vestibule, the Stem Mut with axial internal thread of inserting in the two supporting base endoporus constitutes.
2, thrust damping device according to claim 1 is characterized in that housing shaft seemingly is I shape to analysing and observe, and axially the vestibule upper end is the ladder bellmouth orifice, and the stage casing of vestibule has step, and the interior two end part up and down of step hole are provided with supporting base.
3, thrust damping device according to claim 1 is characterized in that elastic element is made of auspicious ring, outer shroud and interior ring.
4, thrust damping device according to claim 1 is characterized in that the outer end of two supporting bases is provided with bearing race, cages for needle and bearing pressure pad.
5, thrust damping device according to claim 1, it is characterized in that Stem Mut has axial internal thread, the epimere periphery of Stem Mut has step surface, after Stem Mut is inserted the endoporus of two supporting bases, its step surface touches the exterior edge face of upper branching holder and the exterior edge face of bearing pressure pad, the underpart of the Stem Mut locking nut that spins, and through the Cock screw tightening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072704 CN2800019Y (en) | 2005-06-17 | 2005-06-17 | Thrust buffering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520072704 CN2800019Y (en) | 2005-06-17 | 2005-06-17 | Thrust buffering apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2800019Y true CN2800019Y (en) | 2006-07-26 |
Family
ID=36842515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520072704 Expired - Fee Related CN2800019Y (en) | 2005-06-17 | 2005-06-17 | Thrust buffering apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2800019Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697867A (en) * | 2016-02-29 | 2016-06-22 | 苏州纽威阀门股份有限公司 | Valve rod travel dynamic compensation assembly and stop valve |
| CN107131342A (en) * | 2017-05-23 | 2017-09-05 | 江苏圣泰防腐设备东台有限公司 | A kind of strong electrically operated valve of outdoor shock-absorbing capacity |
-
2005
- 2005-06-17 CN CN 200520072704 patent/CN2800019Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697867A (en) * | 2016-02-29 | 2016-06-22 | 苏州纽威阀门股份有限公司 | Valve rod travel dynamic compensation assembly and stop valve |
| CN107131342A (en) * | 2017-05-23 | 2017-09-05 | 江苏圣泰防腐设备东台有限公司 | A kind of strong electrically operated valve of outdoor shock-absorbing capacity |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060726 Termination date: 20140617 |
|
| EXPY | Termination of patent right or utility model |