CN201218338Y - Conical pressure-retaining valve of six-face top press hydraulic system - Google Patents
Conical pressure-retaining valve of six-face top press hydraulic system Download PDFInfo
- Publication number
- CN201218338Y CN201218338Y CNU2008200708674U CN200820070867U CN201218338Y CN 201218338 Y CN201218338 Y CN 201218338Y CN U2008200708674 U CNU2008200708674 U CN U2008200708674U CN 200820070867 U CN200820070867 U CN 200820070867U CN 201218338 Y CN201218338 Y CN 201218338Y
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- cavity
- valve
- hole
- control hole
- intercommunicating pore
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Abstract
The utility model relates to a conical pressure retaining valve for a cubic hinge press hydraulic system. A first coaxial cavity body and a second coaxial cavity body which are axially communicated through a communication hole are arranged in a valve body at intervals. A valve sleeve is arranged in the first cavity, and a conical valve core is arranged in the valve sleeve. A liquid inlet hole, a liquid outlet hole, a first control hole and a second control hole are arranged in the valve sleeve, wherein the liquid inlet hole and the liquid outlet hole are communicated with the inner cavity of the valve sleeve, and the first control hole and the second control hole are communicated with the second cavity body. The small-diameter end of the valve core in the valve sleeve is arranged facing to the communication hole and the big-diameter end of the valve core is connected to the end surface corresponding to the first cavity body through a spring. The liquid inlet hole is arranged near the side wall of the end part of the communication hole in the first cavity body. The liquid outlet hole is arranged at the position on the side wall of the end part of the spring in the first cavity, which can be communicated with the liquid outlet hole when the conical valve core compresses the spring to the limit position. The first control hole and the second control hole are respectively and correspondingly arranged on the side walls of two end parts of the second cavity body. A piston is arranged in the second cavity body, and a push rod is coaxially arranged on one end surface of the piston facing to the communication hole. The distal end of the push rod penetrates through the communication hole and extends into the valve sleeve. The conical pressure retaining has good pressure retaining performance.
Description
Technical field
The utility model relates to diamond synthesis industry cubic hinge press hydraulic control system technical field.
Background technique
At present, cubic hinge press is in the process of diamond synthesis, and 90% time is in the ultrahigh pressure packing state, so the effect of hydraulic system pressurize directly influences adamantine output and quality.The pressurize form of existing hydraulic system is as pressure retaining valve with a ultrahigh pressure hydraulic control 2/2-way valve, schematic diagram as shown in Figure 1 and structural drawing shown in Figure 2, in its valve body 1 the four-way cavity is set, in the vertical direction cavity of this four-way cavity spool 2 is set, has groove 4 on the valve core 2 bottom outer walls; Control hole P1, P1 ' communicate with the vertical direction cavity, be communicated with liquid outlet P, liquid entering hole T about the substantially horizontal cavity of four-way cavity respectively, enter oil pressure from control hole P1, P1 ', controlling spool 2 moves up and down, when the groove on the spool 24 moves to the substantially horizontal cavity place of this four-way cavity, liquid outlet P is communicated with liquid entering hole T; Also be provided with seal ring 3 on the spool 2, prevent pressure leakage, it is irrelevant to open needed fluid control pressure of this pressure retaining valve and system pressure, promptly along with the variation of synthesis technology and synthetic cavity, bigger variation also can take place in synthesis system pressure, but fluid control pressure need not adjusted, and its shortcoming is the rising along with synthesis system pressure, because the pressure that liquid outlet P place enters increases, thruster spool 2 makes pressure leakage increasing, cause oily temperature rise thus, faults such as seal ring damage, so vicious circle, the pressurize effect is worse and worse.
The model utility content
The purpose of this utility model provides the good cubic pressure machine hydraulic system taper pressure retaining valve of a kind of pressurize effect.
A kind of cubic pressure machine hydraulic system taper pressure retaining valve, comprise valve body, valve pocket, wherein: be interval with first in the described valve body, the second two coaxial cavities that axially are communicated with by intercommunicating pore, be provided with valve pocket in first cavity, taper valve core is set in the valve pocket, also offer the inlet opening that is communicated with the valve pocket inner chamber in the valve body, liquid outlet opening and first control hole that is communicated with second cavity, second control hole, valve pocket inner conical spool smaller diameter end is towards the intercommunicating pore setting, larger diameter end is connected on the corresponding end face of first cavity by spring, it is interior near on the end sidewalls of intercommunicating pore that inlet opening is opened in first cavity, and liquid outlet opening is opened on the end sidewalls that spring is set in first cavity, the position that can be communicated with liquid outlet opening when taper valve core compresses the spring into limit position; First control hole, second control hole be corresponding respectively to be opened in the valve body that second cavity is close, on the two end part sidewall away from intercommunicating pore, be provided with a piston in second cavity, this piston is the coaxial push rod that is provided with an external diameter and intercommunicating pore internal diameter coupling on an end face of intercommunicating pore, and the far-end of push rod passes intercommunicating pore and stretches in the valve pocket.
Described cubic pressure machine hydraulic system taper pressure retaining valve, wherein: plunger backer is provided with a limit stoper between the end face of intercommunicating pore and the second cavity corresponding end inwall, and second control hole is opened in the described second cavity corresponding end inwall and limit stoper near between the outer wall of piston side.
The utility model adopts technique scheme will reach following technique effect:
Cubic pressure machine hydraulic system taper pressure retaining valve of the present utility model when liquid outlet pressure increases in the working procedure, only can more closely be pressed in taper valve core on the intercommunicating pore, leakage that can build-up of pressure, thereby pressurize is better; In its working procedure along with the variation of synthesis technology and synthetic cavity, bigger variation also can take place in synthesis system pressure, but fluid control pressure need not adjusted, can guarantee the stable of cubic hinge press hydraulic system pressure, when second control hole has pressure and during greater than the first control hole pressure, push rod is pushed to the direction of taper valve core by pressure, the pressure size of adjusting second control mouthful place according to the variation of synthesis system pressure when push rod contact taper valve core is until promoting taper valve core, and so far pressure retaining valve is opened gradually; When the needs pressure retaining valve is worked, the pressure size of adjusting first, second control hole place makes the pressure of the pressure at first control mouthful place greater than the second control hole place, promote push rod and separate with taper valve core, the effect inferior pyramidal spool at spring resets into the pressurize position simultaneously, enters work or armed state; Taper valve core automatically resets when spring being set helping push rod pressure and reduce; The limit stoper that is provided with in second cavity, can make piston avoid blocking second control hole and can't be in second cavity incoming pressure.
Description of drawings
Fig. 1 is the schematic diagram of existing ultrahigh pressure hydraulic control 2/2-way valve;
Fig. 2 is the structural drawing of existing ultrahigh pressure hydraulic control 2/2-way valve;
Fig. 3 is the schematic diagram of cubic pressure machine hydraulic system taper pressure retaining valve;
Fig. 4 is the structural drawing of cubic pressure machine hydraulic system taper pressure retaining valve.
Embodiment
Embodiment:
A kind of cubic pressure machine hydraulic system taper pressure retaining valve, its schematic diagram as shown in Figure 3, its structural drawing as shown in Figure 4, it comprises valve body 1, valve pocket 6, wherein: be provided with first in the described valve body 1, the second two coaxial cavities, valve pocket 6 is located in first cavity, taper valve core 2 is set in the valve pocket 6, first, the end that second liang of cavity is faced mutually is communicated with by intercommunicating pore, also offer the inlet opening T that is communicated with valve pocket 6 inner chambers in the valve body 1, liquid outlet opening P and the first control hole P1 that is communicated with second cavity, the second control hole P1 ', the smaller diameter end of valve pocket 6 inner conical spools 2 is towards the intercommunicating pore setting, larger diameter end is connected on the corresponding end face of first cavity by spring 5, it is interior near on the end sidewalls of intercommunicating pore that inlet opening T is opened in first cavity, and liquid outlet opening P is opened on the end sidewalls that spring 5 is set in first cavity, the position that can be communicated with inlet opening T when taper valve core 2 is compressed to limit position with spring 5; The first control hole P1, the second control hole P1 ' be corresponding respectively to be opened in the valve body 1 that second cavity is close, on the two end part sidewall away from intercommunicating pore, be provided with a piston 8 in second cavity, this piston 8 is the coaxial push rod 7 that is provided with an external diameter and intercommunicating pore internal diameter coupling on an end face of intercommunicating pore, and the far-end of push rod 7 passes intercommunicating pore and stretches in the valve pocket 6; In addition, piston 8 is provided with a limit stoper 9, the second control hole P1 ' dorsad and is opened in the described second cavity corresponding end inwall and limit stoper 9 near between the outer walls of piston side between the end face of intercommunicating pore and the second cavity corresponding end inwall.
When the first control hole P1, the no pressure of the second control hole P1 ', this taper pressure retaining valve is common one-way valve, the pressure of synthesis system is pressed to spool 2 in liquid outlet P enters valve pocket 6, liquid outlet P and liquid entering hole T are disconnected and formation sealing pressurize environment, the pressure of synthesis system is big more, and the pressure that is applied on the spool 2 is also big more, thereby makes sealing tightr, leakage that can build-up of pressure, this moment, this taper pressure retaining valve was in the work packing state; When the second control hole P1 ' has pressure and during greater than the first control hole P1 place pressure, push rod 7 is pushed to the direction of taper valve core 2 by pressure, adjust pressure size that second control hole P1 ' locate until promote taper valve core 2 according to the variation of synthesis system pressure when contact during taper valve core 2, so far this taper pressure retaining valve is opened gradually; When this taper pressure retaining valve work of needs, adjust the pressure size that the first control hole P1 and the second control hole P1 ' locate, the pressure that the pressure at the first control hole P1 place is located greater than the second control hole P1 ', promoting push rod 7 separates with taper valve core 2, contact with limit stoper 9 up to push rod 7, effect inferior pyramidal spool 2 at spring 5 resets into the pressurize position, enters work or armed state.Along with the variation of synthesis technology and synthetic cavity, when synthesis system pressure becomes big, the taper valve core of this taper pressure retaining valve can by pressure press tighter, guarantee that pressure does not leak, thereby guarantee the stable of cubic hinge press hydraulic system pressure, the running that the system that keeps is good.
Claims (2)
1, a kind of cubic pressure machine hydraulic system taper pressure retaining valve, comprise valve body, valve pocket, it is characterized in that: be interval with first in the described valve body, the second two coaxial cavities that axially are communicated with by intercommunicating pore, be provided with valve pocket in first cavity, taper valve core is set in the valve pocket, also offer the inlet opening that is communicated with the valve pocket inner chamber in the valve body, liquid outlet opening and first control hole that is communicated with second cavity, second control hole, valve pocket inner conical spool smaller diameter end is towards the intercommunicating pore setting, larger diameter end is connected on the corresponding end face of first cavity by spring, it is interior near on the end sidewalls of intercommunicating pore that inlet opening is opened in first cavity, and liquid outlet opening is opened on the end sidewalls that spring is set in first cavity, the position that can be communicated with liquid outlet opening when taper valve core compresses the spring into limit position; First control hole, second control hole be corresponding respectively to be opened in the valve body that second cavity is close, on the two end part sidewall away from intercommunicating pore, be provided with a piston in second cavity, this piston is the coaxial push rod that is provided with an external diameter and intercommunicating pore internal diameter coupling on an end face of intercommunicating pore, and the far-end of push rod passes intercommunicating pore and stretches in the valve pocket.
2, cubic pressure machine hydraulic system taper pressure retaining valve as claimed in claim 1, it is characterized in that: plunger backer is provided with a limit stoper between the end face of intercommunicating pore and the second cavity corresponding end inwall, and second control hole is opened in the described second cavity corresponding end inwall and limit stoper near between the outer wall of piston side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200708674U CN201218338Y (en) | 2008-06-04 | 2008-06-04 | Conical pressure-retaining valve of six-face top press hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200708674U CN201218338Y (en) | 2008-06-04 | 2008-06-04 | Conical pressure-retaining valve of six-face top press hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218338Y true CN201218338Y (en) | 2009-04-08 |
Family
ID=40541173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200708674U Expired - Fee Related CN201218338Y (en) | 2008-06-04 | 2008-06-04 | Conical pressure-retaining valve of six-face top press hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218338Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803776A (en) * | 2009-06-23 | 2012-11-28 | 腓特烈斯港齿轮工厂股份公司 | Pressure medium supply device of a hydraulically actuated shifting element |
| CN109854785A (en) * | 2018-12-24 | 2019-06-07 | 国营第一二三厂 | A kind of shell processing pressure retaining valve of air spider |
| CN112879620A (en) * | 2021-03-24 | 2021-06-01 | 中国长江电力股份有限公司 | Pressure self-adaptive reversible check valve and use method thereof |
-
2008
- 2008-06-04 CN CNU2008200708674U patent/CN201218338Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102803776A (en) * | 2009-06-23 | 2012-11-28 | 腓特烈斯港齿轮工厂股份公司 | Pressure medium supply device of a hydraulically actuated shifting element |
| CN102803776B (en) * | 2009-06-23 | 2015-09-09 | 腓特烈斯港齿轮工厂股份公司 | Can the pressure medium supply unit of hydraulic operated switching member |
| CN109854785A (en) * | 2018-12-24 | 2019-06-07 | 国营第一二三厂 | A kind of shell processing pressure retaining valve of air spider |
| CN112879620A (en) * | 2021-03-24 | 2021-06-01 | 中国长江电力股份有限公司 | Pressure self-adaptive reversible check valve and use method thereof |
| CN112879620B (en) * | 2021-03-24 | 2022-10-18 | 中国长江电力股份有限公司 | Pressure self-adaptive reversible check valve and using method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20130604 |