CN202017668U - Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine - Google Patents

Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine Download PDF

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Publication number
CN202017668U
CN202017668U CN2011200814590U CN201120081459U CN202017668U CN 202017668 U CN202017668 U CN 202017668U CN 2011200814590 U CN2011200814590 U CN 2011200814590U CN 201120081459 U CN201120081459 U CN 201120081459U CN 202017668 U CN202017668 U CN 202017668U
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CN
China
Prior art keywords
oil
hydraulic
machine control
forging machine
high pressure
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Expired - Lifetime
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CN2011200814590U
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Chinese (zh)
Inventor
马力
张华隆
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LIAOYANG PETROCHEMICAL MACHINERY DESIGN MANUFACTURING Co Ltd
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LIAOYANG PETROCHEMICAL MACHINERY DESIGN MANUFACTURING Co Ltd
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Priority to CN2011200814590U priority Critical patent/CN202017668U/en
Application granted granted Critical
Publication of CN202017668U publication Critical patent/CN202017668U/en
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Abstract

The utility model discloses a hydraulic system capable of ensuring the synchronized motion of hydraulic oil cylinders of a hydraulic precision forging machine, which relates to the hydraulic system capable of ensuring the hydraulic oil cylinders of the hydraulic precision forging machine to do synchronized motion and is invented for solving the problem that the hydraulic oil cylinders of the current hydraulic precision forging machine cannot do synchronized motion. The hydraulic system comprises oil pump servo motors and plunger pumps, wherein oil suction tubes of the plunger pumps are communicated with an oil tank; hollow ball valve cores are arranged on high-pressure oil channels in valve bodies of mechanical control two-way ball valves; sealing rings are arranged between the valve bodies and the hollow ball valve cores; shafts of server motors for the mechanical control two-way ball valves are connected with the hollow ball valve cores; oil inlet pipes which are respectively arranged at inlets of the two mechanical control two-way ball valves are connected with the plunger pump; the oil inlet pipe with a rod cavity is arranged at an outlet of one mechanical control two-way ball valve; the oil inlet pipe without a rod cavity is arranged at an outlet of the other mechanical control two-way ball valve; oil return pipes which are respectively arranged at outlets of another two mechanical control two-way ball valves are connected with the oil tank; an oil draining pipe with a rod cavity is arranged at an inlet of one mechanical control two-way ball valve; and an oil draining pipe without a rod cavity is arranged at an inlet of the other mechanical control two-way ball valve. The hydraulic system can ensure the hydraulic oil cylinders of the hydraulic precision forging machine to do synchronized motion.

Description

The hydraulic pressure precise forging machine hydraulic jack hydraulic system that is synchronized with the movement
Technical field:
The utility model relates to a kind of each hydraulic jack of hydraulic pressure precise forging machine that can guarantee and does 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 is the price height not only, and the source of goods is also inadequate in addition.
Summary of the invention:
Technical problem to be solved in the utility model 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 by 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 passes through for high pressure oil is arranged in the valve body, one end of high-pressure oil passage is the high pressure oil import, the other end is the high pressure oil outlet, hollow ball-type spool is contained on the interior high-pressure oil passage of valve body, between valve body and the hollow ball-type spool seal ring is arranged, machine control two-way valve is fixedlyed connected with the hollow ball-type spool in the 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, 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; The branch branch oil pipe is all arranged for linking to each other on rodless cavity oil inlet pipe and the rodless cavity drain line, all have 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.
The utility model has the advantages that: because this installs employed motor and is actuating motor, actuating motor can rotate selected revolution by 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, per minute can hit thousands of times, in addition owing to employed component in this device all are 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 utility model;
Fig. 2 is the machine control two-way valve structural representation that amplifies;
Fig. 3 is the utility model 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 by 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 passes through for high pressure oil is arranged in the valve body, one end of high-pressure oil passage is the high pressure oil import, the other end is the high pressure oil outlet, hollow ball-type spool 15 is contained on the interior high-pressure oil passage of valve body, between valve body and the hollow ball-type spool seal ring 16 is arranged, machine control two-way valve is fixedlyed connected with the hollow ball-type spool in the 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, 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 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; The branch branch oil pipe is all arranged for linking to each other on rodless cavity oil inlet pipe 1 and the rodless cavity drain line 11, all have 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.
Working procedure: 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, adjust the predetermined revolution of oil pump actuating motor rotation by control system, make plunger pump discharge the high pressure oil of accurate preselected volume, by adjust machine control two-way valve with actuating motor 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 actuating motor 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 high pressure oil in the oil inlet pipe surpassed predetermined pressure, high pressure oil can flow back to fuel tank from the spill pipe of relief 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), and it is characterized in that: oil pump actuating motor (8) is connected with plunger pump (9) by 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 passes through for high pressure oil is arranged in the valve body, one end of high-pressure oil passage is the high pressure oil import, the other end is the high pressure oil outlet, hollow ball-type spool (15) is contained on the interior high-pressure oil passage of valve body, between valve body and the hollow ball-type spool seal ring (16) is arranged, machine control two-way valve is fixedlyed connected with the hollow ball-type spool in the 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, 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 (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; The branch branch oil pipe is all arranged for linking to each other on rodless cavity oil inlet pipe (1) and the rodless cavity drain line (11), all have 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.
CN2011200814590U 2011-03-25 2011-03-25 Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine Expired - Lifetime CN202017668U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200814590U CN202017668U (en) 2011-03-25 2011-03-25 Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200814590U CN202017668U (en) 2011-03-25 2011-03-25 Hydraulic system capable of ensuring synchronized motion of hydraulic oil cylinders of hydraulic precision forging machine

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Publication Number Publication Date
CN202017668U true CN202017668U (en) 2011-10-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102650307A (en) * 2012-04-27 2012-08-29 天津市天锻压力机有限公司 Automatic circulation oil filtering system for oil cylinder of hydraulic press
CN102691684A (en) * 2011-03-25 2012-09-26 辽阳石化机械设计制造有限公司 Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691684A (en) * 2011-03-25 2012-09-26 辽阳石化机械设计制造有限公司 Synchronous movement hydraulic system of hydraulic oil cylinder of hydraulic precision forging machine
CN102650307A (en) * 2012-04-27 2012-08-29 天津市天锻压力机有限公司 Automatic circulation oil filtering system for oil cylinder of hydraulic press

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Granted publication date: 20111026