CN202402692U - Backlash compensation rotating valve - Google Patents
Backlash compensation rotating valve Download PDFInfo
- Publication number
- CN202402692U CN202402692U CN201220011663XU CN201220011663U CN202402692U CN 202402692 U CN202402692 U CN 202402692U CN 201220011663X U CN201220011663X U CN 201220011663XU CN 201220011663 U CN201220011663 U CN 201220011663U CN 202402692 U CN202402692 U CN 202402692U
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- CN
- China
- Prior art keywords
- spool
- valve
- valve body
- valve core
- core case
- 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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Abstract
The utility model relates to a backlash compensation rotating valve in the field of flow control. The backlash compensation rotating valve comprises a valve mechanism and a valve core mechanism, the valve mechanism comprises a valve body, the valve body comprises two or more than two valve body channels and a valve core cavity, the valve core mechanism comprises a valve core assembled in the valve core cavity. The backlash compensation rotating valve is characterized by comprising a spring. Valve core channels are arranged on an end face of the valve core, and the spring assembles the end face with an end face of the valve core cavity of the valve body mechanism closely. By rotating the valve core, the valve core channels on the end face of the valve core can connect or close channels between two or more than two relevant valve body channels on the valve body, and an abrasion backlash between the valve core and the valve body in the rotating process can be compensated automatically through the spring. The backlash compensation rotating valve is novel and practical, and has high creativity.
Description
Technical field
The present invention relates to a kind of gap compensation rotating valve in the fluid control field.
Background technique
Present many rotary valves in use owing to the relative movement between spool and valve body or the valve core case, constantly produce friction; Use a period of time; Just the friction gap occurs, cause the sealing of valve no longer tight, this friction gap is the main cause that influences the working life of valve.
The purpose of this invention is to provide a kind of a kind of gap compensation rotating valve that has than the long life.
Summary of the invention
A kind of gap compensation rotating valve involved in the present invention is achieved in that and comprises valve body mechanism, spool mechanism; Said valve body mechanism includes valve body; Comprise two or more valve body duct, spool chamber on the valve body, spool mechanism includes spool, and spool is assemblied in spool chamber; It is characterized in that including spring; The end face of spool has the spool duct, said spring will have said spool duct spool end and said valve body mechanism spool chamber end face close fit together, through rotational valve core; Said spool duct on the spool end just can connect or valve body on two or more relevant said valve body ducts between passage, spool in rotation process and the wearing clearance between the valve body mechanism will compensate automatically through spring.
The spool chamber end face of the said valve body mechanism that links to each other with the spool assembling also has the end face duct; This end face duct cooperates the connection between the duct relevant on connection or the valve body with the spool duct or closes; Like this, wearing clearance compensates the back automatically to guarantee the sealing between spool end and the spool chamber end face.
It is characterized in that said spring is assemblied between spool mechanism and the valve body mechanism.
It is characterized in that valve body mechanism includes valve core case; Valve core case is assemblied in spool chamber; Said valve core case has two or more valve core case ducts; Relevant said valve body duct communicates on said valve core case duct and the valve body, and said spring with the end face close fit of spool end and valve core case together.
The said valve core case end face that links to each other with the spool assembling has the valve core case duct; The valve core case duct cooperates the connection between the duct relevant on connection or the valve body with the spool duct or closes; Valve body mechanism has the higher requirement that cooperates with the counterface of spool, adopts said valve core case can reduce the difficulty of processing of said valve body, to reduce production costs; The preferential drive fit that adopts between valve core case and the valve body, drive fit can effectively prevent the leakage between valve core case duct and the valve body duct.Also can adopt precision-fit between valve core case and the valve body, be mainly used in the change password hydraulic system of low pressure.
It is characterized in that said spring is assemblied between valve body and the valve core case; Valve core case also can be slidedly assemblied in the spool chamber; Spring force acts on the other end of valve core case, spring with the end face close fit of valve core case and spool together, this structure is suitable for low service system.
It is characterized in that valve body mechanism includes piston and piston cavity; Piston is assemblied in the piston cavity; Piston cavity has the control duct; The assembling of one end of piston and an end of spool links to each other, and the active force counteracting spool that this piston is produced under the pressure of fluid links to each other between the end face pressure to alleviate the axial force of spool with valve body mechanism.In the system of mesohigh or other specific (special) requirements,, compensate or offset the axial force of spool through the cylinder thrust of forming by piston and piston cavity as in the hydraulic cipher system.
It is characterized in that said spring is assemblied on the piston; Said spring can be assemblied between piston and the spool mechanism, and the active force of piston is transferred in the spool mechanism with the end face close fit of spool and valve body mechanism together through spring; Also can spring be assemblied in the other end of piston, said spring force through piston with the end face close fit of spool and valve body mechanism together.
This shows that the present invention is simple in structure, novel, and have higher utility.
Description of drawings
Shown in the accompanying drawing 1 is one of embodiment involved in the present invention.
Shown in the accompanying drawing 2 is embodiment's involved in the present invention two.
Shown in the accompanying drawing 3 is embodiment's involved in the present invention three.
Shown in the accompanying drawing 4 is embodiment's involved in the present invention four.
Shown in the accompanying drawing 5 is embodiment's involved in the present invention five.
In the accompanying drawing: 1, valve body mechanism; 101, valve body, 102, valve body duct; 103, spool chamber; 104, valve core case; 105, valve core case duct, 106, valve core case modified gear, 107, friction top; 108, seal arrangement; 109, piston; 110, piston cavity; 2, spool mechanism; 201, handle; 202, electric power controller; 203, spool duct; 204, spool; 205, push rod; 3, spring.
Embodiment
Shown in the embodiment one is a kind of manual rotary valve.
In the accompanying drawing 1, valve body 101, friction top 107, seal arrangement 108 are formed valve body mechanism 1, include two above valve body ducts 102 (only draw among the figure two, all the other do not draw) on the valve body 101; Handle 201, spool 204 are formed spool mechanism 2, have spool duct 203 on the end face of spool 204; Spring 3 is assemblied between spool mechanism 2 and the valve body mechanism 1, and the spool chamber end face that said spring 3 will have a valve body duct 102 and the spool end close fit that has spool duct 203 are together;
Through handle 201 rotational valve cores 204, the duct 203 on the spool end just can connect or valve body on relevant duct 102, spool 204 in rotation process and the wearing clearance between the spool chamber end face will compensate automatically through spring 3.
Shown in the embodiment two is a kind of manual rotary valve.
In the accompanying drawing 2; Valve body 101, friction top 107, valve core case 104, seal arrangement 108 are formed valve body mechanism 1; Valve core case 104 tightly is assemblied in the valve body 101; Include two valve body ducts 102 on the valve body 101, include on the valve core case 104 105, two valve core case ducts 105, two valve core case ducts respectively with 101 2 valve body ducts 102 of valve body; Handle 201, spool 204 are formed spool mechanism 2, have spool duct 203 on the end face of spool 204 and communicate; Spring 3 is assemblied between spool mechanism 2 and the valve body mechanism 1, and the valve core case end face that said spring 3 will have a valve core case duct 105 and the spool end close fit that has spool duct 203 are together;
Through handle 201 rotational valve cores 204, the duct 203 on the spool end just can connect or valve body on relevant duct 102, spool 204 in rotation process and the wearing clearance between the spool chamber end face will compensate automatically through spring 3.
Shown in the embodiment three is a kind of manual rotary valve.
In the accompanying drawing 3; Valve body 101, friction top 107, valve core case 104, seal arrangement 108 are formed valve body mechanism 1; Valve core case 104 is assemblied in the valve body 101; Include two valve body ducts 102 on the valve body 101, include on the valve core case 104 105, two valve core case ducts 105, two valve core case ducts respectively with 101 2 valve body ducts 102 of valve body; Handle 201, spool 204 are formed spool mechanism 2, have spool duct 203 on the end face of spool 204 and communicate; Spring 3 is assemblied between spool mechanism 2 and the valve body mechanism 1, and the valve core case end face that said spring 3 will have a valve core case duct 105 and the spool end close fit that has spool duct 203 are together;
Through handle 201 rotating valves 204, the duct 203 on the spool end just can connect or valve body on relevant duct 102, spool 204 in rotation process and the wearing clearance between the spool chamber end face will compensate automatically through spring 3.
Through handle 201 rotational valve cores 204, the duct 203 on the spool end just can connect or valve body on relevant duct 102, spool 204 in rotation process and the wearing clearance between the spool chamber end face will compensate automatically through spring 3.
Rotating valve core print seat 104 just can change position in spool chamber, valve core case duct 105, spool duct 203 only turn to also that corresponding position could be connected or cut-off valve core print seat 104 on valve core case duct 105.
Shown in the embodiment four is a kind of manual rotary valve.
In the accompanying drawing 4, valve body 101, friction top 107, valve core case 104, seal arrangement 108, piston 109 are formed valve body mechanism 1, and valve core case 104 tightly is assemblied in the valve body 101; Include two valve body ducts 102 and piston cavity 110 on the valve body 101; Include on the valve core case 104 105, two valve core case ducts 105, two valve core case ducts respectively with 101 2 valve body ducts 102 of valve body, piston 109 is assemblied in the piston cavity 110; The valve body duct 102 of high pressure communicates on piston cavity 110 and the valve body; Also can communicate with other pressure sources through interface, automatically reset by spring, spring adopts belleville spring (not identifying among the figure); Handle 201, spool 204, push rod 205 are formed spool mechanism 2, have spool duct 203 on the end face of spool 204 and communicate; Spring 3 is assemblied between spool mechanism 2 and the valve body mechanism 1, and the valve core case end face that said spring 3 will have a valve core case duct 105 and the spool end close fit that has spool duct 203 are together; Push rod 205 is assembled together with piston 109;
Through handle 201 rotational valve cores 204, the duct 203 on the spool end just can connect or valve body on relevant duct 102, spool 204 in rotation process and the wearing clearance between the spool chamber end face will compensate automatically through spring 3.When occurring the working medium of pressure in the piston cavity; Piston 109 is pressed on spool end on the end face of valve core case through push rod 205; During rotary valve work, can not produce bigger leakage because the pressure between spool end and the valve core case end face produces bigger gap.
Shown in the embodiment five is a kind of automatically controlled rotary valve.
In the accompanying drawing 5; Valve body 101, friction top 107, valve core case 104, seal arrangement 108, piston 109 are formed valve body mechanism 1, and valve core case 104 tightly is assemblied in the valve body 101, includes two valve body ducts 102 on the valve body 101; Has piston cavity 110 in the valve body mechanism 1; Include on the valve core case 104 105, two valve core case ducts 105, two valve core case ducts respectively with 101 2 valve body ducts 102 of valve body, piston 109 is assemblied in the piston cavity 110; The valve body duct 102 of high pressure communicates on piston cavity 110 passing hole channels and the valve body, also can communicate with other pressure sources by passing hole channel; Handle 201, spool 204, push rod 205 are formed spool mechanism 2, have spool duct 203 on the end face of spool 204 and communicate; Spring 3 is assemblied between piston 109 and the valve body mechanism 1, and the valve core case end face that said spring 3 will have a valve core case duct 105 and the spool end close fit that has spool duct 203 are together; Valve core case end face and spool end are cone match;
Through handle 201 rotational valve cores 204, the duct 203 on the spool end just can connect or valve body on relevant duct 102, spool 204 in rotation process and the wearing clearance between the spool chamber end face will compensate automatically through spring 3.When occurring the working medium of pressure in the piston cavity; Piston 109 is pressed on spool end on the end face of valve core case through push rod 205; During rotary valve work, can not produce bigger leakage because the pressure between spool end and the valve core case end face produces bigger gap.
This shows that the present invention is simple in structure, novel, and have higher utility.
Claims (6)
1. a gap compensates rotating valve; Comprise valve body mechanism, spool mechanism, said valve body mechanism includes valve body, comprises two or more valve body duct, spool chamber on the valve body; Spool mechanism includes spool; Spool is assemblied in spool chamber, it is characterized in that including spring, and the end face of spool has the spool duct; Said spring will have said spool duct spool end face and said valve body mechanism spool chamber end face close fit together; Through rotational valve core, the said spool duct on the spool end just can connect or valve body on two or more relevant said valve body ducts between passage, the wearing clearance of spool in rotation process and between the valve body will compensate through spring automatically.
2. a kind of gap compensation rotating valve according to claim 1 is characterized in that said spring is assemblied between spool mechanism and the valve body mechanism.
3. a kind of gap compensation rotating valve according to claim 1; It is characterized in that valve body mechanism includes valve core case; Valve core case is assemblied in spool chamber, and said valve core case has two or more valve core case ducts, and relevant said valve body duct communicates on said valve core case duct and the valve body; Said spring with the end face close fit of spool end and valve core case together, the said valve core case end face that links to each other with the spool assembling has the valve core case duct.
4. a kind of gap compensation rotating valve according to claim 3 is characterized in that said spring is assemblied between valve body and the valve core case.
5. according to any one or multinomial described a kind of gap compensation rotating valve in the claim 1 and 3; It is characterized in that valve body mechanism includes piston and piston cavity; Piston is assemblied in the piston cavity; The assembling of one end of piston and spool mechanism links to each other, and the active force counteracting spool that this piston is produced under the pressure of fluid links to each other between the end face pressure to alleviate the axial force of spool with valve body mechanism.
6. a kind of gap compensation rotating valve according to claim 5 is characterized in that said spring is assemblied on the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220011663XU CN202402692U (en) | 2012-01-11 | 2012-01-11 | Backlash compensation rotating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220011663XU CN202402692U (en) | 2012-01-11 | 2012-01-11 | Backlash compensation rotating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202402692U true CN202402692U (en) | 2012-08-29 |
Family
ID=46700341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220011663XU Expired - Fee Related CN202402692U (en) | 2012-01-11 | 2012-01-11 | Backlash compensation rotating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202402692U (en) |
-
2012
- 2012-01-11 CN CN201220011663XU patent/CN202402692U/en not_active Expired - Fee Related
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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: 20120829 Termination date: 20130111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |