CN104895857A - Low noise cone valve - Google Patents
Low noise cone valve Download PDFInfo
- Publication number
- CN104895857A CN104895857A CN201510183400.5A CN201510183400A CN104895857A CN 104895857 A CN104895857 A CN 104895857A CN 201510183400 A CN201510183400 A CN 201510183400A CN 104895857 A CN104895857 A CN 104895857A
- Authority
- CN
- China
- Prior art keywords
- valve
- valve pocket
- spool
- cone
- flow passage
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Details Of Valves (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a low noise cone valve. A center hole working as an oil inlet is formed in the bottom surface of a valve body; a valve sleeve is disposed in the center hole of the valve body; the valve sleeve is in a threaded connection with the valve body; a valve core is covered with the valve sleeve and in sliding cooperation with the valve sleeve; the valve core is connected to the bottom of the center hole of the valve body; a valve sleeve oil outlet and a valve sleeve oil inlet are respectively formed in the upper and lower side surfaces of the valve sleeve; an oil outlet communicated with the valve sleeve oil outlet is formed in the side wall of the valve body on the valve sleeve oil outlet; an annular gap channel communicated with the valve sleeve oil inlet is formed in the side wall of the valve body on the valve sleeve oil inlet; a gap forming a valve sleeve front throttling port is formed between the front end of the valve sleeve and the inner wall of the gap channel; and the oil inlet in the bottom surface of the valve body is connected with the gap channel via the valve sleeve throttling port. The low noise cone valve is advantaged by simple structure, great manufacturability and simple operation; and valve noise can be reduced.
Description
Technical field
The present invention relates to a kind of cone valve, especially relate to a kind of low noise cone valve.
Background technique
Cone valve is one of element important in hydraulic system, structure is simple, the contact stress of valve core and valve base chamber is large, good airproof performance, highly sensitive, but cone valve valve port place pressure gradient is large, often with cavitation phenomenon, there is the shortcomings such as noise is large, poor stability in actual applications, greatly constrain the application of cone valve in hydraulic system.
Traditional cone valve design, the single cone throttle style of many employings, whole Pressure difference distribution is at cone valve valve port place, the cavitation that such design can cause valve port place serious, produce huge cavitation noise, also can cause harmful effect to the stability of cone valve, the serious cavitation corrosion even causing valve port, causes the physical failure of cone valve.
Summary of the invention
In order to solve the noise and stability problem that in background technique, cone valve exists, the object of the present invention is to provide a kind of low noise cone valve, achieving the low noise of valve, and improve the stability of valve by balance valve core hydraulic power.
In order to achieve the above object, the technical solution adopted in the present invention is:
The present invention includes valve body, spring, valve pocket and spool; Valve body bottom surface has center hole as filler opening, and valve pocket is contained in the center hole of valve body, is threaded between valve pocket with valve body, and valve core housing is in valve pocket, and spool and valve pocket are for being slidably matched, and spool is connected through the bottom of spring with valve body center hole.
The side of described valve pocket upper and lower part has valve pocket oil outlet and valve pocket filler opening, valve element circle columnar part has inner flow passage, inner flow passage entrance is positioned at bottom and correspondingly with the valve pocket filler opening of valve pocket lower side communicates, and inner flow passage outlet is positioned at top and is communicated by the valve pocket oil outlet correspondence of valve pocket upper side; The body wall being positioned at valve pocket oil outlet place has the oil outlet communicated with valve pocket oil outlet, the body wall being positioned at valve pocket filler opening place is provided with the clearance channel of the annular communicated with valve pocket filler opening, there is gap between the clearance channel inwall of valve pocket front end and valve body and form restriction before valve pocket, filler opening restriction before valve pocket of valve body bottom surface is connected with clearance channel.
Described spool front end is cone, and rear end is cylindrical body, and the cone angle of nose cone is between 30-60 degree.
Described inner flow passage entrance and inner flow passage outlet all with the axes normal of spool.
Described inner flow passage enters opening's edge valve element circle side face and is uniformly distributed, and quantity is 1 ~ 4.
Described inner flow passage outlet is uniformly distributed along valve element circle side face, and quantity is 1 ~ 4.
Described valve pocket filler opening is all uniformly distributed along valve pocket circumferential surface, and its quantity is identical with the quantity of inner flow passage entrance.
Described valve pocket filler opening is taper hole, and the diameter at taper hole outer wall place is less than the diameter at inwall place, and cone angle is between 5-50 degree.
The useful effect that the present invention has is:
The present invention utilizes pressure oil successively through the gap of spool front end and valve body, restriction before valve pocket, clearance channel, valve pocket filler opening, inner flow passage, valve pocket oil outlet, flow to oil outlet, pressure oil finally have left cone valve through a series of throttling, reduce the pressure gradient of each throttling link in cone valve, suppress the generation of cavitation, reduce the noise of cone valve, the inner conical of valve pocket front end is utilized to design, reduce the axial liquid power of spool, utilize inner flow passage entrance vertical with spool back end cylindrical face with inner flow passage outlet, balance the hydraulic power of spool, improve the stability of valve, finally achieve low noise and the high stability of valve.
Accompanying drawing explanation
Fig. 1 is the sectional view after the present invention assembles.
Fig. 2 is the A direction view of spool.
Fig. 3 is the A direction view of valve pocket.
In figure: 1. valve body, 2. spring, 3. valve pocket oil outlet, 4. valve pocket, 5. oil outlet, 6. spool, 7. valve pocket filler opening, 8. inner flow passage, 9. restriction before valve pocket, 10. clearance channel, 11. filler openings, 12. flow directions.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, Figure 2, Figure 3 shows, the present invention includes valve body 1, spring 2, valve pocket 4 and spool 6; Spring 2, valve pocket 4 and spool 6 are coaxially arranged in valve body 1 lower central hole from top to bottom successively, valve body 1 bottom surface has center hole as filler opening 11, valve pocket 4 is contained in the center hole of valve body 1, be threaded between valve pocket 4 with valve body 1, spool 6 is enclosed within valve pocket 4, spool 6 and valve pocket 4 are for being slidably matched, and spool 6 is connected through the bottom of spring 2 with valve body 1 center hole.
As shown in Figure 3, the side of valve pocket 4 upper and lower part has valve pocket oil outlet 3 and valve pocket filler opening 7, spool 6 barrel portion has inner flow passage 8, as shown in Figure 2, inner flow passage 8 entrance is positioned at bottom and correspondingly with the valve pocket filler opening 7 of valve pocket 4 lower side communicates, and inner flow passage 8 outlet is positioned at top and is communicated by valve pocket oil outlet 3 correspondence of valve pocket 4 upper side; Valve body 1 sidewall being positioned at valve pocket oil outlet 3 place has the oil outlet 5 communicated with valve pocket oil outlet 3, valve body 1 sidewall being positioned at valve pocket filler opening 7 place is provided with the clearance channel 10 of the annular communicated with valve pocket filler opening 7, there is gap between clearance channel 10 inwall of valve pocket 4 front end and valve body 1 and form restriction 9 before valve pocket, filler opening 11 restriction 9 before valve pocket of valve body 1 bottom surface is connected with clearance channel 10.
Spool 6 front end is cone, and rear end is cylindrical body, and the cone angle of nose cone is between 30-60 degree.
Inner flow passage 8 entrance and inner flow passage 8 export all with the axes normal of spool 6.
Inner flow passage 8 enters opening's edge spool 6 circumferential surface and is uniformly distributed, and preferred quantity is 1 ~ 4.Inner flow passage 8 exports and is uniformly distributed along spool 6 circumferential surface, and preferred quantity is 1 ~ 4.The quantity that inner flow passage 8 entrance and inner flow passage 8 export can communicate can not be identical.
Valve pocket filler opening 7 is all uniformly distributed along valve pocket 4 circumferential surface, and its quantity is identical with the quantity of inner flow passage 8 entrance.
Valve pocket filler opening 7 is taper hole, and the diameter at taper hole outer wall place is less than the diameter at inwall place, and aperture linearly increases, and cone angle, between 5-50 degree, makes fluid can throttling gradually, in taper hole place smooth flow.
The present invention is found by the flowing of research valve port, before the shape of valve pocket front end and valve pocket, the axial liquid power at restriction place is closely related, when cone angle is between 30-60 degree, before valve pocket, restriction can while reaching restriction effect, reduce the axial liquid power of spool, therefore be adopted as cone structure in spool 6 front end, cone angle is between 30-60 degree.
Found by research pressure gradient, by on spool, open inner flow passage and on valve pocket valve opening cover filler opening, valve pocket oil outlet, pressure oil is restriction before the gap, valve pocket of spool front end and valve body successively, clearance channel, valve pocket filler opening, inner flow passage, valve pocket oil outlet, flows to oil outlet, pressure oil finally leaves cone valve through a series of throttling, the distribution of flow damping can reduce the pressure gradient of each throttling link in cone valve, suppresses the generation of cavitation, reduces the noise of cone valve.The present invention utilizes the inner conical of valve pocket front end to design, and reduces the axial liquid power of spool, utilizes inner flow passage entrance vertical with spool back end cylindrical face with inner flow passage outlet, balances the hydraulic power of spool, improve the stability of valve, finally achieve the low noise of valve.
The working procedure of low noise cone valve of the present invention is as follows:
Fluid flow direction 12 of the present invention as shown in Figure 1, utilize pressure oil from filler opening 11 successively through spool 6 front end, restriction 9 before valve pocket, valve pocket filler opening 7 is entered after clearance channel 10, again through inner flow passage 8 from valve pocket oil outlet 3 out, flow to oil outlet 5, pressure oil finally have left cone valve through a series of throttling, reduce the pressure gradient of each throttling link in cone valve, suppress the generation of cavitation, reduce the noise of cone valve, the inner conical of valve pocket 4 front end is utilized to design, reduce the axial liquid power of spool 6, inner flow passage 8 entrance is utilized to export vertical with spool 6 back end cylindrical face with inner flow passage 8, balance the hydraulic power of spool 6, finally achieve the low noise of valve.
Thus, pressure oil of the present invention is successively through filler opening, the gap of spool front end and valve body, restriction before valve pocket, clearance channel, valve pocket filler opening, inner flow passage, valve pocket oil outlet, flow to oil outlet, pressure oil in cone valve through a series of throttling, reduce the pressure gradient of each throttling link in cone valve, suppress the generation of cavitation, reduce the noise of cone valve, the inner conical of valve pocket front end is utilized to design, reduce the axial liquid power of spool, utilize inner flow passage entrance vertical with spool back end cylindrical face with inner flow passage outlet, balance the hydraulic power of spool, improve the stability of valve, there is significant technique effect.
Claims (8)
1. a low noise cone valve, is characterized in that: comprise valve body (1), spring (2), valve pocket (4) and spool (6); Valve body (1) bottom surface has center hole as filler opening (11), valve pocket (4) is contained in the center hole of valve body (1), be threaded between valve pocket (4) with valve body (1), spool (6) is enclosed within valve pocket (4), spool (6) and valve pocket (4) are for being slidably matched, and spool (6) is connected through the bottom of spring (2) with valve body (1) center hole.
2. a kind of low noise cone valve according to claim 1, it is characterized in that: the side of described valve pocket (4) upper and lower part has valve pocket oil outlet (3) and valve pocket filler opening (7), spool (6) barrel portion has inner flow passage (8), inner flow passage (8) entrance is positioned at bottom and correspondingly with the valve pocket filler opening (7) of valve pocket (4) lower side communicates, and inner flow passage (8) outlet is positioned at top and is communicated by valve pocket oil outlet (3) correspondence of valve pocket (4) upper side; Valve body (1) sidewall being positioned at valve pocket oil outlet (3) place has the oil outlet (5) communicated with valve pocket oil outlet (3), valve body (1) sidewall being positioned at valve pocket filler opening (7) place is provided with the clearance channel (10) of the annular communicated with valve pocket filler opening (7), there is gap between clearance channel (10) inwall of valve pocket (4) front end and valve body (1) and form restriction (9) before valve pocket, filler opening (11) restriction (9) before valve pocket of valve body (1) bottom surface is connected with clearance channel (10).
3. a kind of low noise cone valve according to claim 1, is characterized in that: described spool (6) front end is cone, and rear end is cylindrical body, and the cone angle of nose cone is between 30-60 degree.
4. a kind of low noise cone valve according to claim 1, is characterized in that: described inner flow passage (8) entrance and inner flow passage (8) outlet all with the axes normal of spool (6).
5. a kind of low noise cone valve according to claim 1, is characterized in that: described inner flow passage (8) enters opening's edge spool (6) circumferential surface and is uniformly distributed, and quantity is 1 ~ 4.
6. a kind of low noise cone valve according to claim 1, is characterized in that: described inner flow passage (8) outlet is uniformly distributed along spool (6) circumferential surface, and quantity is 1 ~ 4.
7. a kind of low noise cone valve according to claim 1, is characterized in that: described valve pocket filler opening (7) is all uniformly distributed along valve pocket (4) circumferential surface, and its quantity is identical with the quantity of inner flow passage (8) entrance.
8. a kind of low noise cone valve according to claim 1, is characterized in that: described valve pocket filler opening (7) is taper hole, and the diameter at taper hole outer wall place is less than the diameter at inwall place, and cone angle is between 5-50 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183400.5A CN104895857B (en) | 2015-04-18 | 2015-04-18 | Low noise cone valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183400.5A CN104895857B (en) | 2015-04-18 | 2015-04-18 | Low noise cone valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104895857A true CN104895857A (en) | 2015-09-09 |
| CN104895857B CN104895857B (en) | 2017-01-11 |
Family
ID=54028736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510183400.5A Active CN104895857B (en) | 2015-04-18 | 2015-04-18 | Low noise cone valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104895857B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026877A (en) * | 2018-09-01 | 2018-12-18 | 哈尔滨工程大学 | A kind of valve based on combination of rigidity and flexibility coating Yu Non-smooth surface space flow-disturbing micro-structure |
| CN109292629A (en) * | 2018-10-26 | 2019-02-01 | 中船华南船舶机械有限公司 | A kind of crane Control in Hydraulic Rotation System |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3619927A1 (en) * | 1986-06-13 | 1987-12-23 | Rexroth Mannesmann Gmbh | 2-Way built-in valve |
| US5375623A (en) * | 1991-02-06 | 1994-12-27 | Weber; Guenter | Cartridge valve |
| CN202158026U (en) * | 2011-07-01 | 2012-03-07 | 宁波市恒通液压科技有限公司 | Balance valve |
| CN202732524U (en) * | 2012-08-04 | 2013-02-13 | 昆明理工大学 | Water hydraulic two-way cartridge valve |
| CN203926992U (en) * | 2014-05-15 | 2014-11-05 | 济南铸造锻压机械研究所有限公司 | Two-way plug-in valve |
| CN204003705U (en) * | 2014-06-12 | 2014-12-10 | 苏州固基电子科技有限公司 | A kind of screw-in cartridge valve |
-
2015
- 2015-04-18 CN CN201510183400.5A patent/CN104895857B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3619927A1 (en) * | 1986-06-13 | 1987-12-23 | Rexroth Mannesmann Gmbh | 2-Way built-in valve |
| US5375623A (en) * | 1991-02-06 | 1994-12-27 | Weber; Guenter | Cartridge valve |
| CN202158026U (en) * | 2011-07-01 | 2012-03-07 | 宁波市恒通液压科技有限公司 | Balance valve |
| CN202732524U (en) * | 2012-08-04 | 2013-02-13 | 昆明理工大学 | Water hydraulic two-way cartridge valve |
| CN203926992U (en) * | 2014-05-15 | 2014-11-05 | 济南铸造锻压机械研究所有限公司 | Two-way plug-in valve |
| CN204003705U (en) * | 2014-06-12 | 2014-12-10 | 苏州固基电子科技有限公司 | A kind of screw-in cartridge valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026877A (en) * | 2018-09-01 | 2018-12-18 | 哈尔滨工程大学 | A kind of valve based on combination of rigidity and flexibility coating Yu Non-smooth surface space flow-disturbing micro-structure |
| CN109026877B (en) * | 2018-09-01 | 2020-12-04 | 哈尔滨工程大学 | Valve based on rigid-flexible composite coating and non-smooth space turbulent flow microstructure |
| CN109292629A (en) * | 2018-10-26 | 2019-02-01 | 中船华南船舶机械有限公司 | A kind of crane Control in Hydraulic Rotation System |
| CN109292629B (en) * | 2018-10-26 | 2020-05-05 | 中船华南船舶机械有限公司 | Hydraulic rotating system of crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104895857B (en) | 2017-01-11 |
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