CN201337901Y - Oil cylinder pressure difference control system for cubic hinge press - Google Patents
Oil cylinder pressure difference control system for cubic hinge press Download PDFInfo
- Publication number
- CN201337901Y CN201337901Y CNU2009200880472U CN200920088047U CN201337901Y CN 201337901 Y CN201337901 Y CN 201337901Y CN U2009200880472 U CNU2009200880472 U CN U2009200880472U CN 200920088047 U CN200920088047 U CN 200920088047U CN 201337901 Y CN201337901 Y CN 201337901Y
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- oil
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- superpressure
- high pressure
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Abstract
The utility model discloses an oil cylinder pressure difference control system for a cubic hinge press, which is simple in structure and reliable in performance. The oil cylinder pressure difference control system comprises ultra-high pressure oil pumps, oil cylinders and a hydraulic element. Two sets of ultra-high pressure oil pumps are respectively connected with two hydraulic control communication valves; one of the communication valve controls the communication and the break of the two ultra-high pressure oil pumps with two oil cylinders provided with heating anvils; and the other communication valve controls the communication and the break of the ultra-high pressure oil pumps with other four oil cylinders. The two sets of ultra-high pressure oil pumps are connected through a check valve, a relief valve is connected in the system of one set of the ultra-high pressure oil pumps, and the oil outlets of the ultra-high pressure oil pumps are connected with the inlets at the axial ends of the communication valves. By adopting the technical proposal, the oil cylinder pressure difference control system simplifies the actuation control of the electric apparatus, and the whole device has the advantages of simple structure, reliable performance and safe and smooth pressure release.
Description
Technical field
The utility model belongs to the hydraulic technique field, relates in particular to a kind of cubic pressure Oil cylinder differential pressure control system.
Background technology
Cubic hinge press is the main flow equipment of superhard materials such as China's synthesis of artificial diamond, and the whole nation has thousands of.The advantage of cubic hinge press be simple in structure, cost is low, use cost is low, be easy to control.But because cubic hinge press adopts pressure-controlled synthetic technologys such as six cylinders, when six top hammers are exerted pressure to synthetic piece, be accompanied by the long-pending contraction of synthesizing block when changing into diamond, six top hammer extruding each other along with graphite, compression travel is pind down, and pressure can not further effectively be delivered in the synthetic piece.Western countries generally adopt superhard materials such as year wheeled belt type press diamond synthesis.The high pressure mould of belt type press by year wheeled cylinder pressure and up and down two top hammers constitute.Belt type press can obtain bigger compression travel because top hammer cone angle is little.But it is complicated that belt type press cost height, especially a year wheeled high pressure mould are made, and costs an arm and a leg, and causes the diamond production cost higher.Chinese patent ZL200310119314.5 has proposed the method for cubic hinge press realization belt type press work, but realize that this method must reform on the hydraulic control system of cubic hinge press, two oil cylinder working-pressures that the heated anvil direction is housed are independently controlled, and two oil cylinder boost pressures that make the heating direction when six oil cylinders boost to certain high pressure spot again are greater than other four oil cylinders.Though the control of cubic hinge press differential pressure has other scheme, such as Chinese patent ZL200720090413.9, but its control system is comparatively complicated, operation inconvenience.
The utility model content
The purpose of this utility model provides a kind of cubic pressure Oil cylinder differential pressure control system of simple in structure, reliable operation.
In order to achieve the above object by the following technical solutions: comprise superpressure oil pump, oil cylinder and Hydraulic Elements, adopt two groups of superpressure oil pumps to connect two hydraulic control communicating valves respectively, a communicating valve control superpressure oil pump is equipped with being communicated with and shutoff of heated anvil oil cylinder with two, and another communicating valve is controlled being communicated with and shutoff of four oil cylinders of superpressure oil pump and other; With a check valve two groups of superpressure oil pumps are connected, relief valve is connected in wherein one group of super high pressure oil pumping system; The superpressure oil pump oil-out is connected with the axial end inlet of communicating valve.
Described relief valve is liquid control pressure releasing valve and manual relief valve.
Adopt the cubic pressure Oil cylinder differential pressure control system of the technical program, be applicable to generation and the research of material under the super-pressure state, satisfy the requirement of superhard materials such as synthetic bulky grain, high grade diamond.Replace complicated super-pressure hydraulic control on-off valve and solenoid directional control valve with super-pressure check valve simple in structure, dependable performance, and omitted electrical control.Whole hydraulic means is only used 10 magnetic valves, compares patent ZL200720090413.9 and has reduced 3.And simplified electrical equipment action control, characteristics such as that whole device has is simple in structure, reliable operation, pressure release safety and steady.
Description of drawings
Accompanying drawing is a fundamental diagram of the present utility model.
The specific embodiment
Embodiment
A kind of cubic pressure Oil cylinder differential pressure control system, comprise superpressure oil pump, oil cylinder and Hydraulic Elements, adopt two groups of superpressure oil pump A, B to connect two hydraulic control communicating valve D, E respectively, a communicating valve control superpressure oil pump A is equipped with being communicated with and shutoff of heated anvil oil cylinder with two, and another communicating valve is controlled being communicated with and shutoff of superpressure oil pump B and other four oil cylinders; With a check valve C two groups of superpressure oil pumps are connected, the fuel-displaced one-way flow that makes superpressure oil pump B is connected in superpressure oil pump A system to superpressure oil pump A with relief valve; The superpressure oil pump oil-out is connected with the axial end inlet of communicating valve, the fuel-displaced axial end inlet that enters communicating valve of superpressure oil pump, and hydraulic oil backs down communicating valve connection operating cylinder superpressure automatically when superpressure.
The pressure of superpressure oil pump B is smaller or equal to superpressure oil pump A in the superpressure process.
Described relief valve is liquid control pressure releasing valve and manual relief valve, and the oil of six working cylinders is discharged to keeping synchronous pressure release behind the equal pressure again.
When the work step that advances in idle running, Oil pump electrical machinery M1 starts, electro-hydraulic reversing valve 1,3,4,7, the 9CT adhesive, upper cylinder half G1, preceding cylinder G5, the motion of right cylinder G4 three cylinder piston-advance, when three cylinder pistons reach the travel switch desired location, suspend three seconds, change upper cylinder half G1 over to, following cylinder G2, left side cylinder G3, right cylinder G4, preceding cylinder G5, back cylinder G6 six cylinder topping up work steps, magnetic valve 1,3,4,5,6,7,8, the 9CT adhesive is to six hydraulic cylinder topping ups, after reaching setup pressure value I, oil pump M1 and all magnetic valves all cut off the power supply and stop, change the superpressure work step over to, superpressure oil pump motor M 3, M4 starts simultaneously, hydraulic oil enters communicating valve E, D backs down and enters six working cylinder back cavities behind the spool of communicating valve and begin superpressure.Since the flow of superpressure oil pump B greater than superpressure oil pump A flow II doubly more than, the part hydraulic oil of superpressure oil pump B is diverted among two oil cylinder G1, the G2 that superpressure oil pump A is communicated with through check valve C six working cylinder equipressures is boosted.After superpressure arrives pressure set points 2, superpressure oil pump B stops, and four oil cylinder G3, G4, G5, G6 that valve E is communicated with enter packing stage, and superpressure oil pump A remains in operation and makes two oil cylinders that heat directions of valve D connection continue to boost, up to reaching pressure set points III, stop superpressure oil pump A.Because the unidirectional of check valve C closed, making the oil cylinder of two heating directions and the pressure difference value of other four oil cylinders maintenance is the poor of pressure set points III and pressure set points II.Behind end of synthesis, oil pump M2 starts, valve 10CT gets, pressure oil enters the control piston of liquid control pressure releasing valve F, back down relief valve, two oil cylinder pressure releases that communicating valve D is connected, after pressure was discharged to six cylinder pressure and equates, the oil of four oil cylinder back cavities that communicating valve E is communicated with advanced check valve C, import liquid control pressure releasing valve F, six working cylinders begin synchronous pressure release.
After pressure is discharged to low pressure, oil pump M2, valve 10CT outage stopping pressure release.Oil pump electrical machinery M1 starts, electro-hydraulic reversing valve 2CT adhesive, and hydraulic oil is pressed into six fluid cylinder ante-chambers by oil pump through reversal valve, and quick return is finished a working cycles.
Claims (2)
1, a kind of cubic pressure Oil cylinder differential pressure control system, comprise superpressure oil pump, oil cylinder and Hydraulic Elements, it is characterized in that: adopt two groups of superpressure oil pumps (A), (B) to connect two hydraulic control communicating valves (D), (E) respectively, a communicating valve control superpressure oil pump (A) is equipped with being communicated with and shutoff of heated anvil oil cylinder with two, and another communicating valve is controlled being communicated with and shutoff of superpressure oil pump (B) and other four oil cylinders; With a check valve (C) two groups of superpressure oil pumps are connected, relief valve is connected in (A) group super high pressure oil pumping system; The superpressure oil pump oil-out is connected with the axial end inlet of communicating valve.
2, cubic pressure Oil cylinder differential pressure control system according to claim 1 is characterized in that: described relief valve is liquid control pressure releasing valve and manual relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200880472U CN201337901Y (en) | 2009-01-07 | 2009-01-07 | Oil cylinder pressure difference control system for cubic hinge press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200880472U CN201337901Y (en) | 2009-01-07 | 2009-01-07 | Oil cylinder pressure difference control system for cubic hinge press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201337901Y true CN201337901Y (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200880472U Expired - Lifetime CN201337901Y (en) | 2009-01-07 | 2009-01-07 | Oil cylinder pressure difference control system for cubic hinge press |
Country Status (1)
| Country | Link |
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| CN (1) | CN201337901Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121485A (en) * | 2011-01-27 | 2011-07-13 | 济南易久自动化技术有限公司 | Controllable centralized oil supply hydraulic system with multiple press power for multiple hydraulic press machines |
| CN110864021A (en) * | 2019-12-02 | 2020-03-06 | 郑州磨料磨具磨削研究所有限公司 | Synchronous control system for hydraulic oil cylinder of cubic press |
| CN110873085A (en) * | 2019-12-02 | 2020-03-10 | 郑州磨料磨具磨削研究所有限公司 | Synchronous control method for hydraulic oil cylinder of cubic press |
-
2009
- 2009-01-07 CN CNU2009200880472U patent/CN201337901Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121485A (en) * | 2011-01-27 | 2011-07-13 | 济南易久自动化技术有限公司 | Controllable centralized oil supply hydraulic system with multiple press power for multiple hydraulic press machines |
| CN110864021A (en) * | 2019-12-02 | 2020-03-06 | 郑州磨料磨具磨削研究所有限公司 | Synchronous control system for hydraulic oil cylinder of cubic press |
| CN110873085A (en) * | 2019-12-02 | 2020-03-10 | 郑州磨料磨具磨削研究所有限公司 | Synchronous control method for hydraulic oil cylinder of cubic press |
| CN110864021B (en) * | 2019-12-02 | 2021-07-27 | 郑州磨料磨具磨削研究所有限公司 | Synchronous control system for hydraulic oil cylinder of cubic press |
| CN110873085B (en) * | 2019-12-02 | 2021-07-27 | 郑州磨料磨具磨削研究所有限公司 | Synchronous control method for hydraulic oil cylinder of cubic press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhengzhou New Asia Superhard Material Composite Co., Ltd. Assignor: Zhengzhou Abrasives grinding Research Institute|Zhengzhou three grinding Superhard Material Co., Ltd. Contract record no.: 2011410000104 Denomination of utility model: Oil cylinder pressure difference control system for cubic hinge press Granted publication date: 20091104 License type: Exclusive License Record date: 20110802 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU RESEARCH INSTITUTE FOR ABRASIVES + GRIND Free format text: FORMER OWNER: ZHENGZHOU ABRASIVE MATERIALS, ABRASIVE TOOLS, GRINDING INST. (CN) NO.1 HUASHAN R Effective date: 20140114 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140114 Address after: 450013 No. 121, Huashan Road, Zhengzhou, Henan Patentee after: Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. Patentee after: Zhengzhou Sanmo Superhard Material Co., Ltd. Address before: 450013 No. 121, Huashan Road, Zhengzhou, Henan Patentee before: Zhengzhou Research Institute for Abrasive & Grinding Co., Ltd. Patentee before: Zhengzhou Sanmo Superhard Material Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |