CN102691684A - Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine - Google Patents
Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine Download PDFInfo
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- CN102691684A CN102691684A CN2011100727652A CN201110072765A CN102691684A CN 102691684 A CN102691684 A CN 102691684A CN 2011100727652 A CN2011100727652 A CN 2011100727652A CN 201110072765 A CN201110072765 A CN 201110072765A CN 102691684 A CN102691684 A CN 102691684A
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Abstract
The invention provides a synchronous movement hydraulic system of a hydraulic oil cylinder of a hydraulic precision forging machine and relates to a hydraulic system capable of guaranteeing that the hydraulic oil cylinder of the hydraulic precision forging machine performs synchronous movement. The synchronous movement hydraulic system is mainly used for solving the problem that the existing hydraulic oil cylinder of the hydraulic precision forging machine cannot perform the synchronous movement. The synchronous movement hydraulic system comprises an oil pump servo motor and a plunger pump; the oil suction pipe of the plunger pump is communicated with an oil tank; hollow spherical valve cores are arranged on high-pressure oil channels in valve bodies of mechanical control two-way spherical valves; a sealing ring is arranged between each valve body and each hollow spherical valve core; each mechanical control two-way spherical valve is connected with each hollow spherical valve core through a shaft of the servo motor; the inlets of the two mechanical control two-way spherical valves are provided with oil inlet pipes connected with the plunger pump; the outlet of one mechanical control two-way spherical valve is provided with a rod cavity oil inlet pipe and the other one of the mechanical control two-way spherical valves is provided with a rodless cavity oil inlet pipe; the outlets of the other two mechanical control two-way spherical valves are provided with oil returning pipes connected with an oil rank; and the inlet of one mechanical control two-way spherical valve is provided with a rod cavity oil discharging pipe, and the other one of the mechanical control two-way spherical valves is provided with a rodless cavity oil discharging pipe. The synchronous movement hydraulic system has the advantage of guaranteeing the synchronous movement of the hydraulic oil cylinder of the hydraulic precision forging machine.
Description
Technical field:
The present invention relates to a kind of each hydraulic jack of hydraulic pressure precise forging machine that can guarantee and do the hydraulic system that is synchronized with the movement.
Background technique:
Existing hydraulic pressure precise forging machine has two or three or four hydraulic jacks, and the hydraulic system of controlling hydraulic pressure precise forging machine hydraulic jack at present can not guarantee the hydraulic jack synchronous working, makes forging quality poor.And the tup cycle is restricted, and the highest per minute can only hit 240 times, and actual demand per minute nearly thousand times can not meet the needs of production.Because the electromagnet of the valve of domestic production can not frequently be switched on, so can only be applied on the hydraulic system by the high-quality valve of import, the high-quality valve of import not only price is high, and the source of goods is also inadequate in addition.
Summary of the invention:
Technical problem to be solved by this invention provides a kind of hydraulic pressure precise forging machine hydraulic jack hydraulic system that is synchronized with the movement; Can guarantee the hydraulic jack synchronous working of hydraulic pressure precise forging machine, cycle is adjustable, can meet the needs of production; Native system uses homemade component cost low, easy-maintaining.
Above-mentioned purpose is achieved in that it comprises the oil pump actuating motor, and the oil pump actuating motor is connected with plunger pump through coupling, and the fuel sucking pipe of plunger pump is communicated with fuel tank; Machine control two-way valve comprises valve body; The high-pressure oil passage that supplies high pressure oil to pass through is arranged in the valve body; One end of high-pressure oil passage is the high pressure oil import, and the other end is the high pressure oil outlet, and hollow ball-type spool is contained on the high-pressure oil passage in the valve body; Between valve body and the hollow ball-type spool seal ring is arranged, machine control two-way valve is fixedly connected with the interior hollow ball-type spool of valve body with the axle of actuating motor; Also comprise two groups of (two every group) machine control two-way valves; One group of feed flow compressing cylinder oiling is used; The use of draining the oil of another group feed flow compressing cylinder; Wherein the high pressure oil import of two machine control two-way valves of feed flow compressing cylinder oiling use all has oil inlet pipe to link to each other with the plunger delivery side of pump, and one-way valve, pressure gauge and relief valve are arranged on this oil inlet pipe, and the spill pipe of relief valve links to each other with fuel tank; The high pressure oil outlet of one of them machine control two-way valve has the confession of rod chamber oil inlet pipe to link to each other with the rod chamber of the hydraulic jack of hydraulic pressure precise forging machine, and the high pressure oil outlet of another machine control two-way valve has the confession of rodless cavity oil inlet pipe to link to each other with the rodless cavity of the hydraulic jack of hydraulic pressure precise forging machine; The drain the oil high pressure oil outlet of two machine control two-way valves using of other one group of feed flow compressing cylinder all has the oil return pipeline to link to each other with fuel tank; The high pressure oil import of one of them machine control two-way valve has the confession of rod chamber drain line to link to each other with the rod chamber of the hydraulic jack of hydraulic pressure precise forging machine, and the high pressure oil import of another machine control two-way valve has the confession of rodless cavity drain line to link to each other with the rodless cavity of the hydraulic jack of hydraulic pressure precise forging machine; All there is the branch branch oil pipe to supply to link to each other on rodless cavity oil inlet pipe and the rodless cavity drain line, all has the confession of branch branch oil pipe to link to each other on rod chamber oil inlet pipe and the rod chamber drain line with the rod chamber of other hydraulic jack of hydraulic pressure precise forging machine with the rodless cavity of other hydraulic jack of hydraulic pressure precise forging machine.
Advantage of the present invention is: because this installs employed motor and is actuating motor, actuating motor can rotate selected revolution through control system in preselected time, make plunger pump in preselected time, discharge the high pressure oil of precise volumes; So can guarantee the hydraulic jack synchronous working of hydraulic pressure precise forging machine, the forging quality that processes is good, applicable to the hydraulic pressure precise forging machine that two or three or four hydraulic jacks are arranged; And the hydraulic jack blows per minute is adjustable; It is thousands of time that per minute can hit, in addition since in this device employed component all be that homemade, used valve arrangement is simple; So the cost of whole system is low, and easy-maintaining.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the machine control two-way valve structural representation that amplifies;
Fig. 3 is the present invention and hydraulic pressure precise forging machine hydraulic jack coupled condition schematic representation, and 17 is hydraulic jack among the figure, and 18 is hydraulic cylinder piston, and 19 is hydraulic cylinder piston rod, and 20 is tup.
Embodiment:
With reference to Fig. 1,2, it comprises oil pump actuating motor 8, and oil pump actuating motor 8 is connected with plunger pump 9 through coupling, and the fuel sucking pipe of plunger pump is communicated with fuel tank 7; Machine control two-way valve 3 comprises valve body 13; The high-pressure oil passage that supplies high pressure oil to pass through is arranged in the valve body; One end of high-pressure oil passage is the high pressure oil import, and the other end is the high pressure oil outlet, and hollow ball-type spool 15 is contained on the high-pressure oil passage in the valve body; Between valve body and the hollow ball-type spool seal ring 16 is arranged, machine control two-way valve is fixedly connected with the interior hollow ball-type spool of valve body with the axle of actuating motor 14; Also comprise two groups of machine control two-way valves; Every group has two machine control two-way valves; One group of feed flow compressing cylinder oiling is used, uses of draining the oil of another group feed flow compressing cylinder, and wherein the high pressure oil import of two machine control two-way valves 3 of feed flow compressing cylinder oiling use all has oil inlet pipe 4 to link to each other with the plunger delivery side of pump; One-way valve 10, pressure gauge 6 and relief valve 5 are arranged on this oil inlet pipe 4, and the spill pipe of relief valve links to each other with fuel tank; The high pressure oil outlet of one of them machine control two-way valve has 2 confessions of rod chamber oil inlet pipe to link to each other with the rod chamber of the hydraulic jack of hydraulic pressure precise forging machine, and the high pressure oil outlet of another machine control two-way valve has 1 confession of rodless cavity oil inlet pipe to link to each other with the rodless cavity of the hydraulic jack of hydraulic pressure precise forging machine; The drain the oil high pressure oil outlet of two machine control two-way valves using of other one group of feed flow compressing cylinder all has the oil return pipeline to link to each other with fuel tank 7; The high pressure oil import of one of them machine control two-way valve has 12 confessions of rod chamber drain line to link to each other with the rod chamber of the hydraulic jack of hydraulic pressure precise forging machine, and the high pressure oil import of another machine control two-way valve has 11 confessions of rodless cavity drain line to link to each other with the rodless cavity of the hydraulic jack of hydraulic pressure precise forging machine; All there is the branch branch oil pipe to supply to link to each other on rodless cavity oil inlet pipe 1 and the rodless cavity drain line 11, all has the confession of branch branch oil pipe to link to each other on rod chamber oil inlet pipe 2 and the rod chamber drain line 12 with the rod chamber of other hydraulic jack of hydraulic pressure precise forging machine with the rodless cavity of other hydraulic jack of hydraulic pressure precise forging machine.
The course of work: rod chamber oil inlet pipe, rodless cavity oil inlet pipe, rod chamber drain line and rodless cavity drain line are connected with the hydraulic jack of hydraulic pressure precise forging machine; Needs according to the forging workpiece; By the predetermined revolution of control system adjustment oil pump servomotor rotation; Make plunger displacement pump discharge the hydraulic oil of accurate preselected volume; By adjustment machine control two-way valve with servomotor with the rotation of hollow ball-type spool, the high-pressure oil passage of machine control two-way valve be communicated with or close; When hydraulic jack will drive tup and moves upward; Control with servomotor with machine control two-way valve; Open feed flow compressing cylinder oiling machine control two-way valve that use and that be communicated with the hydraulic jack rod chamber; Open the drain the oil machine control two-way valve that is communicated with the hydraulic jack rodless cavity of usefulness of feed flow compressing cylinder simultaneously, close two machine control two-way valves in addition; When hydraulic jack will drive tup and moves downward; Open feed flow compressing cylinder oiling machine control two-way valve that use and that be communicated with the hydraulic jack rodless cavity; Open the drain the oil machine control two-way valve that is communicated with the hydraulic jack rod chamber of usefulness of feed flow compressing cylinder simultaneously; Close two machine control two-way valves in addition, so repeatedly; When the pressure of the hydraulic oil in the oil inlet pipe surpassed predetermined pressure, hydraulic oil can flow back to fuel tank from the overflow pipe of overflow valve.
Claims (1)
1. the hydraulic pressure precise forging machine hydraulic jack hydraulic system that is synchronized with the movement comprises oil pump actuating motor (8), it is characterized in that: oil pump actuating motor (8) is connected with plunger pump (9) through coupling, and the fuel sucking pipe of plunger pump is communicated with fuel tank (7); Machine control two-way valve (3) comprises valve body (13); The high-pressure oil passage that supplies high pressure oil to pass through is arranged in the valve body; One end of high-pressure oil passage is the high pressure oil import, and the other end is the high pressure oil outlet, and hollow ball-type spool (15) is contained on the high-pressure oil passage in the valve body; Between valve body and the hollow ball-type spool seal ring (16) is arranged, machine control two-way valve is fixedly connected with the interior hollow ball-type spool of valve body with the axle of actuating motor (14); Also comprise two groups of machine control two-way valves; Every group has two machine control two-way valves; One group of feed flow compressing cylinder oiling is used, uses of draining the oil of another group feed flow compressing cylinder, and wherein the high pressure oil import of two machine control two-way valves (3) of feed flow compressing cylinder oiling use all has oil inlet pipe (4) to link to each other with the plunger delivery side of pump; One-way valve (10), pressure gauge (6) and relief valve (5) are arranged on this oil inlet pipe (4), and the spill pipe of relief valve links to each other with fuel tank; The high pressure oil outlet of one of them machine control two-way valve has rod chamber oil inlet pipe (2) confession to link to each other with the rod chamber of the hydraulic jack of hydraulic pressure precise forging machine, and the high pressure oil outlet of another machine control two-way valve has rodless cavity oil inlet pipe (1) confession to link to each other with the rodless cavity of the hydraulic jack of hydraulic pressure precise forging machine; The drain the oil high pressure oil outlet of two machine control two-way valves using of other one group of feed flow compressing cylinder all has the oil return pipeline to link to each other with fuel tank (7); The high pressure oil import of one of them machine control two-way valve has rod chamber drain line (12) confession to link to each other with the rod chamber of the hydraulic jack of hydraulic pressure precise forging machine, and the high pressure oil import of another machine control two-way valve has rodless cavity drain line (11) confession to link to each other with the rodless cavity of the hydraulic jack of hydraulic pressure precise forging machine; All there is the branch branch oil pipe to supply to link to each other on rodless cavity oil inlet pipe (1) and the rodless cavity drain line (11), all has the confession of branch branch oil pipe to link to each other on rod chamber oil inlet pipe (2) and the rod chamber drain line (12) with the rod chamber of other hydraulic jack of hydraulic pressure precise forging machine with the rodless cavity of other hydraulic jack of hydraulic pressure precise forging machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100727652A CN102691684A (en) | 2011-03-25 | 2011-03-25 | Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100727652A CN102691684A (en) | 2011-03-25 | 2011-03-25 | Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine |
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| CN102691684A true CN102691684A (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100727652A Pending CN102691684A (en) | 2011-03-25 | 2011-03-25 | Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122157A (en) * | 1993-03-31 | 1996-05-08 | 弗朗西斯·凯文·亨特 | Fluid control valve |
| DE10320182A1 (en) * | 2003-05-07 | 2004-12-02 | Sms Meer Gmbh | Hydraulic forge press for metal processing has control valves in frame or intermediate block remote from pump |
| CN201023121Y (en) * | 2007-04-24 | 2008-02-20 | 湖北大地钎具有限公司 | Three-cylinder hydraulic forging machine |
| CN101712207A (en) * | 2009-09-08 | 2010-05-26 | 广东工业大学 | High performance and energy-saving double-acting hydrostatic press driven by servo motor |
| CN201603832U (en) * | 2010-01-13 | 2010-10-13 | 辽阳石化机械设计制造有限公司 | Oil supply device for four-hammer hydraulic precision forging machine |
| CN201650901U (en) * | 2010-03-29 | 2010-11-24 | 张元杰 | Multi-cylinder synchronous hydraulic control device |
| CN202017668U (en) * | 2011-03-25 | 2011-10-26 | 辽阳石化机械设计制造有限公司 | Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine |
-
2011
- 2011-03-25 CN CN2011100727652A patent/CN102691684A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122157A (en) * | 1993-03-31 | 1996-05-08 | 弗朗西斯·凯文·亨特 | Fluid control valve |
| DE10320182A1 (en) * | 2003-05-07 | 2004-12-02 | Sms Meer Gmbh | Hydraulic forge press for metal processing has control valves in frame or intermediate block remote from pump |
| CN201023121Y (en) * | 2007-04-24 | 2008-02-20 | 湖北大地钎具有限公司 | Three-cylinder hydraulic forging machine |
| CN101712207A (en) * | 2009-09-08 | 2010-05-26 | 广东工业大学 | High performance and energy-saving double-acting hydrostatic press driven by servo motor |
| CN201603832U (en) * | 2010-01-13 | 2010-10-13 | 辽阳石化机械设计制造有限公司 | Oil supply device for four-hammer hydraulic precision forging machine |
| CN201650901U (en) * | 2010-03-29 | 2010-11-24 | 张元杰 | Multi-cylinder synchronous hydraulic control device |
| CN202017668U (en) * | 2011-03-25 | 2011-10-26 | 辽阳石化机械设计制造有限公司 | Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine |
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Application publication date: 20120926 |