CN202884146U - Compensation damping device of directly operated type pressure valve - Google Patents
Compensation damping device of directly operated type pressure valve Download PDFInfo
- Publication number
- CN202884146U CN202884146U CN 201220581020 CN201220581020U CN202884146U CN 202884146 U CN202884146 U CN 202884146U CN 201220581020 CN201220581020 CN 201220581020 CN 201220581020 U CN201220581020 U CN 201220581020U CN 202884146 U CN202884146 U CN 202884146U
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- spring
- compensation
- compensating spool
- damping device
- steel ball
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Abstract
The utility model relates to a damping device of a valve, in particular to a compensation damping device of a directly operated type pressure valve. The compensation damping device comprises a compensation spring seat, a small steel ball, a gasket, a spring sleeve, a compensation valve core, a small spring and a large spring. The compensation spring seat is in interference fit and pressed into a valve body, one end of the compensation spring seat abuts against the large steel ball, the compensation valve core is placed inside the compensation spring seat, one end of the compensation valve core abuts against the large steel ball, and fit clearance is arranged between the compensation valve core and the compensation spring seat. The gasket is placed inside the compensation valve core, the edge portion of the gasket is tightly attached to the inner surface of the compensation valve core, the small steel ball is placed inside the compensation valve core, the small spring is sleeved with the spring sleeve outside, and the spring sleeve provided with the small spring is together placed inside the compensation valve core. One end of the small spring abuts against the small steel ball, the large spring is placed inside the compensation valve core, the large spring is sleeved on the spring sleeve, and the outer surface of the large spring abuts against the gasket. The compensation damping device of the directly operated type pressure valve has the advantages of being simple in structure, sensitive in reaction, fast in response, large in flow, high in pressure adjusting precision, small in wobble, and the like.
Description
Technical field
The utility model relates to a kind of damping device of valve, specifically a kind of compensation damping device of direct-acting type pressure valve.
Background technique
The advantages such as that direct-acting overflow valve has is simple in structure, response is fast, direct-acting type pressure valve particularly spool is the valve of ball formula, because opening area changes greatly, affect the stability of its work, produce easily the shortcomings such as vibrations and pressure surge are large during work, this makes the direct-acting type pressure valve obtain restriction in applications such as big-flow high-pressure power.If there is a kind of compensation damping device of direct-acting type pressure valve can reduce the vibrations of direct-acting overflow valve, direct-acting overflow valve just can be applied to the occasions such as large flow and high pressure smoothly so.
The model utility content
Technical problem to be solved in the utility model is, proposes a kind of compensation damping device of direct-acting type pressure valve, and response is fast, and flow is large, and the pressure regulation precision is high, and the shake pendulum is little.
The technological scheme that the utility model solves above technical problem is:
The compensation damping device of direct-acting type pressure valve, direct-acting type pressure valve have valve body and are positioned at main spring and the big steel ball of valve body, and an end of main spring withstands on the big steel ball; The compensation damping device comprises counterbalance spring seat, small ball, pad, spring housing, compensating spool, little spring and big spring; Counterbalance spring seat interference fit is pressed into valve body, and an end of counterbalance spring seat withstands big steel ball, and compensating spool is positioned at the counterbalance spring seat, and compensating spool one end withstands big steel ball, has matching gap between compensating spool and the counterbalance spring seat; Pad is positioned at compensating spool, the compensating spool internal surface is close in its edge section, small ball is arranged in compensating spool, the little spring overcoat has spring housing, the spring housing that little spring is housed is positioned at compensating spool together, and an end of little spring withstands on the small ball, and big spring is positioned at compensating spool, big spring is enclosed within on the spring housing, and the outer surface of big spring leans against on the pad.
The technological scheme that the utility model further limits is:
The compensation damping device of aforesaid direct-acting type pressure valve, the compensating spool outer surface is with curved surface.The curved surface of compensating spool can effectively reduce the hydraulic power of transient state and static state to the impact of spool, has reduced the fluctuation and the vibrations that cause greatly hydraulic power that the spool effect is produced because of excess flow, thereby greatly improves the pressure regulation precision of system, reduces the shake pendulum.
The compensation damping device of aforesaid direct-acting type pressure valve, the compensating spool internal surface is provided with groove, and the groove that gasket edge is partially embedded in the compensating spool is interior fixing.Connect more firmly, can prevent that pad from dropping.
The beneficial effects of the utility model are: the utlity model has simple in structure, be quick on the draw, respond fast, the advantage such as flow is large and the pressure regulation precision is high, the shake pendulum is little.When system pressure is higher than setting pressure, can rapid response, make system decompression; Direct-acting overflow valve or the pressure valve of the utility model device are housed, when pressure produces fluctuation, and when the fluctuation that produces during large spillway discharge and vibrations, can be well decayed, play the voltage stabilizing cushioning effect.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is fundamental diagram of the present utility model.
Embodiment
Embodiment 1
Present embodiment is a kind of compensation damping device of direct-acting type pressure valve, structure as shown in Figure 1, the direct-acting type pressure valve has valve body and is positioned at main spring 1 and the big steel ball 6 of valve body, an end of main spring 1 withstands on the big steel ball 6; The compensation damping device comprises counterbalance spring seat 2, small ball 3, pad 4, spring housing 5, compensating spool 7, little spring 8 and big spring 9; Counterbalance spring seat 2 interference fit are pressed into valve body, one end of counterbalance spring seat 2 withstands big steel ball 6, and compensating spool 7 is positioned at counterbalance spring seat 2, and compensating spool 7 one ends withstand big steel ball 6, have matching gap between compensating spool 7 and the counterbalance spring seat 2, compensating spool 7 outer surfaces are with curved surface; Pad 4 is positioned at compensating spool 7, and compensating spool 7 internal surfaces are close in its edge section, and compensating spool 7 internal surfaces are provided with groove, and the groove that pad 4 edge sections are embedded in the compensating spool 7 is interior fixing, can prevent that pad from dropping; Small ball 3 is arranged in compensating spool 7, little spring 8 overcoats have spring housing 5, the spring housing 5 that little spring 8 is housed is positioned at compensating spool 7 together, one end of little spring 8 withstands on the small ball 3, big spring 9 is positioned at compensating spool 7, big spring 9 is enclosed within on the spring housing 5, and the outer surface of big spring 9 leans against on the pad 4.
Assembly process of the present utility model is: counterbalance spring seat 2 is pressed into valve body with the form of interference fit fixes it; Pad 4 is encased in the compensating spool 7, with special tool it is swollen, the groove that its edge section is embedded in the compensating spool 7 is interior fixing, prevents from dropping; Small ball 3 is packed in the compensating spool 7, little spring 8 spring housing 5 of packing into, then the spring housing 5 of little spring 8 of will packing into is packed in the compensating spool 7 together, one end of little spring 8 is withstood on the small ball 3, the compensating spool 7 of again big spring 9 being packed into, the one end is leaned against on the pad 4, and the part that at last these is installed is encased in the counterbalance spring seat 2 in the lump; This device is applicable to multi-way valve, cartridge valve and other use direct-acting type pressure valves; The advantages such as it is fast to have response, and flow is large and the pressure regulation precision is high, the shake pendulum is little.
Working procedure of the present utility model is:
When large flow, excess flow increases, big steel ball 6 is lifted off a seat apart from increasing, this moment, compensating spool 7 was followed big steel ball 6 one startings under the thrust of big spring 9, can increase the flow area between compensating spool 7 and the counterbalance spring seat 2, thereby can reduce the decrement of displacement amount and the main spring 1 of big steel ball 6, improve the pressure regulation precision; The curved surface of compensating spool can effectively reduce the hydraulic power of transient state and static state to the impact of spool simultaneously, has reduced the fluctuation and the vibrations that cause greatly hydraulic power that the spool effect is produced because of excess flow, thereby greatly improves the pressure regulation precision of system, reduces the shake pendulum.
When system pressure produces fluctuation owing to power source or actuator, work fluid is pushed small ball 3 open by compensating spool 7, enter spring chamber, when system pressure was higher than the pressure of main spring 1, compensating spool 7 backed down steel ball 6 and realizes pressure release, and big steel ball 6 forms a ball valve with compensating spool 7, has the stroke compensating action, namely compare with poppet spool valve, during by identical larger flow, the stroke that compensating spool 7 needs is less; As shown in Figure 2, wherein small ball 3 is equivalent to one-way valve 11 with compensating spool 7, matching gap between counterbalance spring seat 2 and the compensating spool 7 is equivalent to throttle orifice 10, when fluctuation occurs at system pressure in this throttle orifice 10, can decaying the amplitude of vibrations rapidly in the one-way throttle hole, can be to the effect of system pressure fluctuation generation bumper and absorbing shock.
In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1. the compensation damping device of direct-acting type pressure valve, described direct-acting type pressure valve has valve body and is positioned at main spring (1) and the big steel ball (6) of valve body, and an end of described main spring (1) withstands on the described big steel ball (6); It is characterized in that: comprise counterbalance spring seat (2), small ball (3), pad (4), spring housing (5), compensating spool (7), little spring (8) and big spring (9); Described counterbalance spring seat (2) interference fit is pressed into described valve body, one end of counterbalance spring seat (2) withstands described big steel ball (6), described compensating spool (7) is positioned at described counterbalance spring seat (2), compensating spool (7) one ends withstand described big steel ball (6), have matching gap between described compensating spool (7) and the counterbalance spring seat (2); Described pad (4) is positioned at described compensating spool (7), compensating spool (7) internal surface is close in its edge section, described small ball (3) is arranged in described compensating spool (7), described little spring (8) overcoat has spring housing (5), the spring housing (5) that little spring (8) are housed is positioned at compensating spool (7) together, one end of little spring (8) withstands on the described small ball (3), big spring (9) is positioned at described compensating spool (7), big spring (9) is enclosed within on the spring housing (5), and the outer surface of big spring (9) leans against on the pad (4).
2. the compensation damping device of direct-acting type pressure valve as claimed in claim 1, it is characterized in that: described compensating spool (7) outer surface is with curved surface.
3. the compensation damping device of direct-acting type pressure valve as claimed in claim 1, it is characterized in that: described compensating spool (7) internal surface is provided with groove, and described pad (4) edge section is embedded in the groove in the compensating spool (7) fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581020 CN202884146U (en) | 2012-11-06 | 2012-11-06 | Compensation damping device of directly operated type pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220581020 CN202884146U (en) | 2012-11-06 | 2012-11-06 | Compensation damping device of directly operated type pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202884146U true CN202884146U (en) | 2013-04-17 |
Family
ID=48075576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220581020 Expired - Lifetime CN202884146U (en) | 2012-11-06 | 2012-11-06 | Compensation damping device of directly operated type pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202884146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638930A (en) * | 2021-10-13 | 2021-11-12 | 山东泰丰智能控制股份有限公司 | Split overflow valve |
-
2012
- 2012-11-06 CN CN 201220581020 patent/CN202884146U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638930A (en) * | 2021-10-13 | 2021-11-12 | 山东泰丰智能控制股份有限公司 | Split overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |