CN202392171U - Three-way high-frequency electro-hydraulic excitation valve - Google Patents
Three-way high-frequency electro-hydraulic excitation valve Download PDFInfo
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- CN202392171U CN202392171U CN2011205500392U CN201120550039U CN202392171U CN 202392171 U CN202392171 U CN 202392171U CN 2011205500392 U CN2011205500392 U CN 2011205500392U CN 201120550039 U CN201120550039 U CN 201120550039U CN 202392171 U CN202392171 U CN 202392171U
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- valve
- undercut groove
- spool
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- groove
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Abstract
The utility model discloses a three-way high-frequency electro-hydraulic excitation valve which comprises a valve body, a valve core and a valve sleeve, wherein an oil inlet communicated with a high-pressure oil tank, an oil outlet communicated with a hydraulic cylinder and an oil return port communicated with an oil return tank are formed on the valve body; the valve core and the valve sleeve are positioned in the valve body; the valve sleeve is embedded in a valve body hole; the valve core is arranged in the valve sleeve; four ledges are formed on the valve core; the two ledges on the outer side are supporting ledges; the two ledges in the middle are working ledges; trenches are uniformly formed in the axial directions of the two working ledges respectively and staggered from each other; valve sleeve windows which are matched with the trenches of the ledges are uniformly formed at the positions on the valve sleeve, which correspond to the working ledges; a distance between the valve sleeve windows is equal to a distance between the two working ledges; at least three oil wedges are axially formed at the positions on the valve sleeve, which are opposite to the supporting ledges, at equal arc intervals; the oil outlet is communicated with a throttling valve; and the throttling valve is arranged on the valve body. According to the three-way high-frequency electro-hydraulic excitation valve, phenomena of axial and radial deviations are effectively avoided, and the working stability is high.
Description
Technical field
The utility model relates to a kind of high-frequency electrohydraulic exciting shock valve.
Background technique
Existing high-frequency electrohydraulic exciting shock valve comprises valve body, the oil outlet that has the filler opening that is communicated with pressure-oil tank on the described valve body, connects with oil hydraulic cylinder, the return opening of connecting with the oil return fuel tank; Comprise spool and valve pocket in the valve body, valve pocket is nested in the valve body hole, and spool inserts in the valve pocket, and described spool is connected with driving mechanism through case butt coupling; Spool is provided with shoulder, shoulder circumferentially evenly offer some grooves and the groove mutual dislocation on adjacent two shoulders; On the valve pocket corresponding in the middle of the position of two shoulders circumferentially evenly offer with shoulder on the identical T shape window of quantity.The defective of its existence: Spielpassung between shoulder and the valve pocket, when running up, the shoulder expanded by heating is easy to generate diameter of axle skew, causes blocking between shoulder and the valve body, and working stability is relatively poor; And face contacts between spool end and the plug, has bigger friction, influences working life.
Summary of the invention
Be easy to generate diameter of axle skew, the relatively poor deficiency of working stability for what overcome existing existing high-frequency electrohydraulic exciting shock valve, the utility model provides a kind of effectively avoid producing diameter of axle skew, threeway high-frequency electrohydraulic exciting shock valve that working stability is good.
The utility model solves the technological scheme that its technical problem adopted:
A kind of threeway high-frequency electrohydraulic exciting shock valve comprises valve body, spool and valve pocket, the oil outlet that has the filler opening that is communicated with pressure-oil tank on the said valve body, connects with oil hydraulic cylinder, the return opening of connecting with the oil return fuel tank; Spool and valve pocket are positioned at valve body, and valve pocket is nested in the valve body hole, and spool is in valve pocket; Said spool is provided with four shoulders; Wherein two shoulders in the outside are the supporting shoulder, and middle two shoulders are the work shoulder, and the axial difference of said two work shoulders is evenly processed groove; And the groove mutual dislocation of two work on the shoulder; The valve pocket window that cooperates with the shoulder groove is circumferentially evenly offered in the position of corresponding work shoulder on the valve pocket, and the distance between the said valve pocket window and two distances of working between the shoulder equate that the position axis of corresponding supporting shoulder is to waiting circular arc to offer at least three oil film wedges at interval on the said valve pocket; Said oil outlet is communicated with throttle valve, and said throttle valve is installed on the valve body.
Further, said spool one end contacts with steel ball point, and said steel ball is nested in the plug, and said plug is fixedly connected with valve body.
Further again, the said spool the other end has rectangular through-hole, inserts a flat key in the rectangular through-hole; Flat key cooperates with sleeve; Thereby make spool and sleeve be linked to be integral body, the sleeve opposite side has a keyway and is connected with driving mechanism, and the driving mechanism the other end is connected with actuating motor.
Further, have 4 undercut grooves in the valve body, be respectively first undercut groove, second undercut groove, the 3rd undercut groove and the 4th undercut groove, first undercut groove is communicated with the 4th undercut groove, and is communicated with the return opening of exciting valve; Second undercut groove is communicated with the filler opening of exciting valve, and the 3rd undercut groove is communicated with exciting valve oil outlet through behind the plug-in mounting throttle valve; On the valve pocket on the corresponding work shoulder valve pocket window of groove be in respectively in second undercut groove, the 3rd undercut groove, corresponding first undercut groove and the 4th undercut groove position are offered the valve pocket window respectively on the valve pocket.
The beneficial effect of the utility model mainly shows: 1, effectively avoid producing diameter of axle skew, working stability is good; 2, point contacts between spool end and the plug, effectively reduces friction, and increases the service life.
Description of drawings
Fig. 1 is the structural drawing of threeway high-frequency electrohydraulic exciting shock valve.
Fig. 2 is the sectional drawing of threeway high-frequency electrohydraulic exciting shock valve.
Fig. 3 is the cooperation schematic representation of spool valve pocket.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1～Fig. 3, a kind of threeway high-frequency excitation valve comprises valve body 6, spool 3 and valve pocket 2, the oil outlet A that has the oil inlet P that is communicated with pressure-oil tank on the said valve body 6, connects with oil hydraulic cylinder, the oil return inlet T of connecting with the oil return fuel tank; Spool 3 is positioned at valve body 6 with valve pocket 2, and valve pocket 2 is nested in the valve body hole, and spool 3 is in valve pocket 2; 4 shoulders are arranged on the spool 3; Wherein two shoulders in the outside are for supporting shoulder, and two shoulders in centre are the work shoulder, and two work shoulders are circumferentially evenly processed Z groove respectively at it; And the groove mutual dislocation on two shoulders; The valve pocket window that cooperates with the shoulder groove is circumferentially evenly offered in the position of corresponding work shoulder on the valve pocket 2, valve pocket window dislocation-free, and the distance between distance between the valve pocket window and spool work shoulder equates.At least 3 oil film wedges 11 are circumferentially evenly offered in the corresponding position of supporting shoulder on the valve pocket 2.
Said valve body 6 is installed on the base plate 10, has 4 undercut grooves in the valve body 6, is respectively first undercut groove, second undercut groove, the 3rd undercut groove and the 4th undercut groove.First undercut groove is communicated with the 4th undercut groove, and is communicated with the return opening of exciting valve.Second undercut groove is communicated with the filler opening of exciting valve, and the 3rd undercut groove is communicated with exciting valve oil outlet through behind the plug-in mounting throttle valve.On the valve pocket on the corresponding work shoulder T shape window of groove be in respectively in second undercut groove, the 3rd undercut groove, corresponding first undercut groove and the 4th undercut groove position are offered a rectangular window respectively on the valve pocket.
Support the shoulder corresponding region with the spool left and right sides on the valve pocket and circumferentially have at least 3 oil film wedges 11.Spool 3 right sides contact with 5 of steel balls, and steel ball 5 is nested in the plug 4, and plug 4 opposite side end faces are concordant with valve outer surface.Spool 3 left sides have a rectangular through-hole, insert a flat key in the rectangular through-hole, and flat key cooperates with sleeve 1, thereby makes spool and sleeve 1 be linked to be integral body, and sleeve 1 opposite side has a keyway, and is connected with driving mechanism 7.Driving mechanism 7 the other ends are connected with actuating motor 8, and pass to the exciting valve core after the rotating speed amplification with actuating motor 8.
Said oil outlet A is communicated with throttle valve 9, and said throttle valve 9 is installed on the valve body 6, and throttle valve 9 can effectively be regulated flow.
Claims (4)
1. a threeway high-frequency electrohydraulic exciting shock valve comprises valve body, spool and valve pocket, the oil outlet that has the filler opening that is communicated with pressure-oil tank on the said valve body, connects with oil hydraulic cylinder, the return opening of connecting with the oil return fuel tank; Spool and valve pocket are positioned at valve body, and valve pocket is nested in the valve body hole, and spool is in valve pocket; It is characterized in that: said spool is provided with four shoulders; Wherein two shoulders in the outside are the supporting shoulder, and middle two shoulders are the work shoulder, and the axial difference of said two work shoulders is evenly processed groove; And the groove mutual dislocation of two work on the shoulder; The valve pocket window that cooperates with the shoulder groove is circumferentially evenly offered in the position of corresponding work shoulder on the valve pocket, and the distance between the said valve pocket window and two distances of working between the shoulder equate that the position axis of corresponding supporting shoulder is to waiting circular arc to offer at least three oil film wedges at interval on the said valve pocket; Said oil outlet is communicated with throttle valve, and said throttle valve is installed on the valve body.
2. threeway high-frequency electrohydraulic exciting shock valve as claimed in claim 1 is characterized in that: said spool one end contacts with steel ball point, and said steel ball is nested in the plug, and said plug is fixedly connected with valve body.
3. threeway high-frequency electrohydraulic exciting shock valve as claimed in claim 2; It is characterized in that: the said spool the other end has rectangular through-hole; Insert a flat key in the rectangular through-hole, flat key cooperates with sleeve, thereby makes spool and sleeve be linked to be integral body; The sleeve opposite side has a keyway and is connected with driving mechanism, and the driving mechanism the other end is connected with actuating motor.
4. like the described threeway high-frequency electrohydraulic exciting shock of one of claim 1～3 valve; It is characterized in that: have 4 undercut grooves in the valve body; Be respectively first undercut groove, second undercut groove, the 3rd undercut groove and the 4th undercut groove; First undercut groove is communicated with the 4th undercut groove, and is communicated with the return opening of exciting valve; Second undercut groove is communicated with the filler opening of exciting valve, and the 3rd undercut groove is communicated with exciting valve oil outlet through behind the plug-in mounting throttle valve; On the valve pocket on the corresponding work shoulder valve pocket window of groove be in respectively in second undercut groove, the 3rd undercut groove, corresponding first undercut groove and the 4th undercut groove position are offered the valve pocket window respectively on the valve pocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205500392U CN202392171U (en) | 2011-12-26 | 2011-12-26 | Three-way high-frequency electro-hydraulic excitation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205500392U CN202392171U (en) | 2011-12-26 | 2011-12-26 | Three-way high-frequency electro-hydraulic excitation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202392171U true CN202392171U (en) | 2012-08-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205500392U Expired - Fee Related CN202392171U (en) | 2011-12-26 | 2011-12-26 | Three-way high-frequency electro-hydraulic excitation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202392171U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537419A (en) * | 2011-12-26 | 2012-07-04 | 浙江工业大学 | Tee high-frequency electro-hydraulic exciting vibration valve |
| CN105065376A (en) * | 2015-07-28 | 2015-11-18 | 昆明理工大学 | Variable-frequency multipath pulsating flow generation device |
-
2011
- 2011-12-26 CN CN2011205500392U patent/CN202392171U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537419A (en) * | 2011-12-26 | 2012-07-04 | 浙江工业大学 | Tee high-frequency electro-hydraulic exciting vibration valve |
| CN105065376A (en) * | 2015-07-28 | 2015-11-18 | 昆明理工大学 | Variable-frequency multipath pulsating flow generation device |
| CN105065376B (en) * | 2015-07-28 | 2019-04-09 | 昆明理工大学 | A kind of frequency conversion multichannel pulsation flow generating apparatus |
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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: 20120822 Termination date: 20141226 |
|
| EXPY | Termination of patent right or utility model |