CN201580012U - Hydraulic control system for hydraulic press - Google Patents
Hydraulic control system for hydraulic press Download PDFInfo
- Publication number
- CN201580012U CN201580012U CN201020020509XU CN201020020509U CN201580012U CN 201580012 U CN201580012 U CN 201580012U CN 201020020509X U CN201020020509X U CN 201020020509XU CN 201020020509 U CN201020020509 U CN 201020020509U CN 201580012 U CN201580012 U CN 201580012U
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Abstract
The utility model discloses a hydraulic control system for a hydraulic press, which comprises a hydraulic source, a working oil cylinder 1 and a working oil cylinder 2; the outlet of the hydraulic source is communicated with a P port of an electromagnetic valve; an O port of the electromagnetic valve is communicated with an oil tank through a pipeline; an A port of the electromagnetic valve is communicated with a rodless cavity of the working oil cylinder 1 through the pipeline; a B port of the electromagnetic valve is communicated with a rod cavity of the working oil cylinder 1 through the pipeline; and the outlet of the hydraulic source is communicated with four S ports of the electromagnetic valve through the pipelines, the four T ports of the electromagnetic valve are communicated with the oil tank through the pipelines, the four C ports of the electromagnetic valve are communicated with the rodless cavity of the working oil cylinder 2 through the pipelines, and the four D ports of the electromagnetic valve are communicated with the rod cavity of the working oil cylinder 2. The hydraulic control system for the hydraulic press is characterized by pressurizing time control by a relay, long pressurizing time, high pressure stability, mechanical and electrical liquid integrated design and high intelligent degree.
Description
Technical field
The utility model relates to a kind of hydraulic control system, is specifically related to a kind of hydraulic press hydraulic control system.
Background technology
Hydraulic drive and control are the output (power, displacement or speed etc.) that realizes various mechanical quantity with liquid (oil, high water base fluid are pressed oil, synthetic fluid) as medium.Characteristics such as it is compared with simple machine driving, Electrified Transmission and Pneumatic Transmission, and it is big to have a transmitted power, and structure is little, response is fast, thereby be widely used in various plant equipment and accurate automatic control system.Hydraulic press is one of equipment most widely used during product molding is produced, since 19th century came out development very fast, hydraulic press extensive adaptability at work makes it obtain to use widely in national economy all departments.Conventional hydraulic press hydraulic control system adopts check valve loop pressurize, and the dwell time is short, pressure stability is poor.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of hydraulic press hydraulic control system is provided, and it is provided with automatic feed circuit, and the dwell time can be controlled by relay, dwell time is long, pressure stability is high, adopts the mechanical-electrical-hydraulic integration design, intelligent degree height.
For achieving the above object, the technical solution adopted in the utility model is: a kind of hydraulic press hydraulic control system, comprise by fuel tank, the hydraulic power source that oil filter and hydraulic pump are formed, relative operating cylinder one and the operating cylinder of installing two, it is characterized in that: described hydraulic power source outlet is connected with magnetic valve one P mouth, one 0 mouthfuls of described magnetic valves are connected with fuel tank by pipeline, be disposed with magnetic valve two and counterbalance valve between one 0 mouthfuls of magnetic valves and the fuel tank, described magnetic valve one A mouth is connected by the rodless cavity of pipeline with operating cylinder one, described magnetic valve one B mouth is connected by the rod chamber of pipeline with operating cylinder one, and the pipeline between described magnetic valve one B mouth and operating cylinder one rod chamber is provided with hydraulic control one-way valve one; Described hydraulic power source outlet is connected with magnetic valve four S mouths by pipeline, described magnetic valve four T mouths are connected with fuel tank by pipeline, described magnetic valve four C mouths are connected with operating cylinder two rodless cavities by pipeline, and described magnetic valve four D mouths are connected with operating cylinder two rod chambers.
Pipeline between the rodless cavity of described magnetic valve one A mouth and operating cylinder one is provided with choke valve one, sudden-pressure relay and Pressure gauge, be provided with choke valve two and magnetic valve three between described choke valve one and the fuel tank, the rodless cavity of operating cylinder one is connected with auxiliary fuel tank by pipeline, and the pipeline between operating cylinder one rodless cavity and the auxiliary fuel tank is provided with hydraulic control one-way valve two.
On the pipeline between described hydraulic power source outlet and the magnetic valve four S mouths pressure-reducing valve is installed, on the pipeline between described magnetic valve four C mouths and operating cylinder two rodless cavities one-way throttle valve one is installed, on the pipeline between described magnetic valve four D mouths and operating cylinder two rod chambers one-way throttle valve two is installed.
The outlet conduit of described hydraulic power source is provided with pilot operated compound relief valve.
Described magnetic valve one and magnetic valve four are the 3-position 4-way solenoid directional control valve, and described magnetic valve two and magnetic valve three are two-position two-way solenoid valve.
The utility model compared with prior art has the following advantages:
(1) this hydraulic press is provided with automatic feed circuit with hydraulic control system, and the dwell time can control by relay, in 0-20min, can adjust;
(2) this hydraulic press is long with the hydraulic control system dwell time, pressure stability is high;
(3) this hydraulic press adopts mechanical-electrical-hydraulic integration design, intelligent degree height with hydraulic control system.
Below by drawings and Examples, the utility model is described in further detail.
Description of drawings
Fig. 1 is a hydraulic control schematic diagram of the present utility model.
Description of reference numerals:
The 1-hydraulic power source; The 2-pilot operated compound relief valve; The 3-counterbalance valve;
4-magnetic valve two; 5-magnetic valve one; 6 one hydraulic control one-way valves one;
7-choke valve one; 8-choke valve two; 9-magnetic valve three;
The 10-sudden-pressure relay; The 11-Pressure gauge; The 12-auxiliary fuel tank;
13-hydraulic control one-way valve two; 14-operating cylinder one; 15-operating cylinder two;
16-one-way throttle valve one; 17-one-way throttle valve two; 18-magnetic valve four;
The 19-pressure-reducing valve.
The specific embodiment
A kind of hydraulic press hydraulic control system as shown in Figure 1, comprise by fuel tank, the hydraulic power source 1 that oil filter and hydraulic pump are formed, relative operating cylinder 1 and the operating cylinder of installing 2 15, described hydraulic power source 1 outlet is connected with the P mouth of magnetic valve 1,0 mouthful of described magnetic valve 1 is connected with fuel tank by pipeline, be disposed with magnetic valve 24 and counterbalance valve 3 between 0 mouthful of magnetic valve 1 and the fuel tank, the A mouth of described magnetic valve 1 is connected by the rodless cavity of pipeline with operating cylinder 1, the B mouth of described magnetic valve 1 is connected by the rod chamber of pipeline with operating cylinder 1, and the pipeline between the B mouth of described magnetic valve 1 and operating cylinder one 14 rod chambers is provided with hydraulic control one-way valve 1; Described hydraulic power source 1 outlet is connected with the S mouth of magnetic valve 4 18 by pipeline, the T mouth of described magnetic valve 4 18 is connected with fuel tank by pipeline, the C mouth of described magnetic valve 4 18 is connected with operating cylinder 2 15 rodless cavities by pipeline, and the D mouth of described magnetic valve 4 18 is connected with operating cylinder 2 15 rod chambers.
Pipeline between the A mouth of described magnetic valve 1 and the rodless cavity of operating cylinder 1 is provided with choke valve 1, sudden-pressure relay 10 and Pressure gauge 11, be provided with choke valve 28 and magnetic valve 39 between described choke valve 1 and the fuel tank, the rodless cavity of operating cylinder 1 is connected with auxiliary fuel tank 12 by pipeline, and the pipeline between operating cylinder one 14 rodless cavities and the auxiliary fuel tank 12 is provided with hydraulic control one-way valve 2 13.
On the pipeline between the S mouth of described hydraulic power source 1 outlet and magnetic valve 4 18 pressure-reducing valve 19 is installed, on the pipeline between the C mouth of described magnetic valve 4 18 and operating cylinder 2 15 rodless cavities one-way throttle valve 1 is installed, on the pipeline between the D mouth of described magnetic valve 4 18 and operating cylinder 2 15 rod chambers one-way throttle valve 2 17 is installed.
The outlet conduit of described hydraulic power source 1 is provided with pilot operated compound relief valve 2.
Described magnetic valve 1 and magnetic valve 4 18 are the 3-position 4-way solenoid directional control valve, and described magnetic valve 24 and magnetic valve 39 are two-position two-way solenoid valve.
The utility model hydraulic press with the course of work of hydraulic control system is:
One, going up hydraulic cylinder is the working cycles of operating cylinder 1:
(1) worker advances pressurization: this moment, electromagnet W1 and W5 got.
The oil feeding line analysis of hydraulic cylinder rodless cavity: the hydraulic oil of hydraulic power source 1 is through the right position of magnetic valve 1, by choke valve 1 relay 10 of flowing through, flows to the rodless cavity of operating cylinder 1, makes the rodless cavity pressurization of operating cylinder 1.
The oil return circuit analysis of hydraulic cylinder rod chamber: hydraulic oil passes through hydraulic control one-way valve 6 process magnetic valves one 5 right bit streams through counterbalance valve 3 from the rod chamber of operating cylinder 1, flows to fuel tank again.Because this moment, the back pressure of counterbalance valve 3 generations was opened the hydraulic control one-way valve 13 that connects auxiliary fuel tank 12 next doors, make the hydraulic oil of auxiliary fuel tank 12 give operating cylinder one 14 rodless cavity repairings through hydraulic control one-way valve 13, make the push rod of operating cylinder 1 descending fast, counterbalance valve 3 is connected on the system oil return road in addition, cause certain oil return resistance, to improve the robust motion of executive component.
(2) pressurize: this moment, electromagnet W5 got.
Oil circuit is analyzed: when epicoele drops to certain the time fast, pressure switch 11 sends signal, make the electromagnet W1 outage of magnetic valve 1, magnetic valve 1 is got back to meta, the plunger hole that utilizes variable pump from the oil suction status transition to the oil extraction state, the variation of its volume is from large to small, and by increasing in the change procedure that dwindles, it is zero in a flash that rate of volumetric change must be arranged, Here it is plunger hole moves to the center line of self overlaps with the face at place, dead point this in a flash, at this moment the position at the oil inlet and outlet of plunger hole place on oil distribution casing is called the dead-centre position.Plunger when this position, neither oil suction, also not oil extraction, but by absorb for row transition state, the hydraulic system pressurize.And the hydraulic pump of hydraulic power source 1 is directly got back to fuel tank by counterbalance valve 3 when meta.
(3) backhaul: electromagnet W2, W5 and W6 get at this moment.
The oil feeding line analysis of the rod chamber of operating cylinder 1: electromagnet W2 gets, when pressurize to certain the time, relay 10 sends signal, make the electromagnet W2 energising of magnetic valve 1, magnet valve 1 is received position, a left side, the hydraulic oil of hydraulic power source 1 is by position, magnetic valve one 5 left side, and the hydraulic control one-way valve 6 of flowing through flow to the rod chamber of operating cylinder 1.
The oil return circuit analysis of the rodless cavity of operating cylinder 1: electromagnet W5 and W6 get, the hydraulic oil of the rodless cavity of operating cylinder 1 is received fuel tank by choke valve 28 and reversal valve 9 successively, realize release of pressure, a part of in addition hydraulic oil flows back to fuel tank from the rodless cavity of operating cylinder 1 by choke valve 1, position, magnetic valve one 5 left side, magnetic valve 24 and counterbalance valve 3, realizes release of pressure.
Two, hydraulic cylinder is the working cycles of operating cylinder 2 15 down:
(1) worker advances: this moment electromagnet W4 get electric, the W5 dead electricity.
The rodless cavity oil feeding line of operating cylinder 2 15 is analyzed: the hydraulic oil of hydraulic power source 1 through magnetic valve position, 4 18 left side and one-way throttle valve 1, flow to operating cylinder 2 15 rodless cavities successively.
The rod chamber oil return circuit of operating cylinder 2 15 is analyzed: hydraulic oil through one-way throttle valve 2 17 and position, magnetic valve 4 18 left side, flow to fuel tank successively in operating cylinder 2 15 rod chambers.
(2) backhaul: this moment the W4 dead electricity, W3 gets.
The oil feeding line analysis of the rod chamber of operating cylinder 2 15: the hydraulic oil of hydraulic power source 1 flow to the rod chamber of operating cylinder 2 15 successively through magnetic valve 4 18 right position and one-way throttle valves 2 17.
The oil return circuit analysis of the rodless cavity of operating cylinder 2 15: the hydraulic oil in operating cylinder 2 15 rodless cavities through one-way throttle valve 1 and magnetic valve 4 18 right positions, flow to fuel tank successively
The concrete action of electromagnet sees Table 1:
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment did, all still belong in the protection domain of technical solutions of the utility model.
Claims (5)
1. hydraulic press hydraulic control system, comprise by fuel tank, the hydraulic power source (1) that oil filter and hydraulic pump are formed, relative operating cylinder one (14) and the operating cylinder of installing two (15), it is characterized in that: described hydraulic power source (1) outlet is connected with magnetic valve one (5) P mouth, described magnetic valve is connected with fuel tank by pipeline for one (5) 0 mouthful, be disposed with magnetic valve two (4) and counterbalance valve (3) between one (5) 0 mouthful of described magnetic valve and the fuel tank, described magnetic valve one (5) A mouth is connected by the rodless cavity of pipeline with operating cylinder one (14), described magnetic valve one (5) B mouth is connected by the rod chamber of pipeline with operating cylinder one (14), and the pipeline between described magnetic valve one (5) B mouth and operating cylinder one (14) rod chamber is provided with hydraulic control one-way valve one (6);
Described hydraulic power source (1) outlet is connected with magnetic valve four (18) S mouths by pipeline, described magnetic valve four (18) T mouths are connected with fuel tank by pipeline, described magnetic valve four (18) C mouths are connected with operating cylinder two (15) rodless cavities by pipeline, and described magnetic valve four (18) D mouths are connected with operating cylinder two (15) rod chambers.
2. according to the described hydraulic press hydraulic control system of claim 1, it is characterized in that: the pipeline between the rodless cavity of described magnetic valve one (5) A mouth and operating cylinder one (14) is provided with choke valve one (7), sudden-pressure relay (10) and Pressure gauge (11), be provided with choke valve two (8) and magnetic valve three (9) between described choke valve one (7) and the fuel tank, the rodless cavity of operating cylinder one (14) is connected with auxiliary fuel tank (12) by pipeline, and the pipeline between operating cylinder one (14) rodless cavity and the auxiliary fuel tank (12) is provided with hydraulic control one-way valve two (13).
3. according to the described hydraulic press hydraulic control system of claim 1, it is characterized in that: on the pipeline between described hydraulic power source (1) outlet and magnetic valve four (18) the S mouths pressure-reducing valve (19) is installed, on the pipeline between described magnetic valve four (18) C mouths and operating cylinder two (15) rodless cavities one-way throttle valve one (16) is installed, on the pipeline between described magnetic valve four (18) D mouths and operating cylinder two (15) rod chambers one-way throttle valve two (17) is installed.
4. according to the described hydraulic press hydraulic control system of claim 1, it is characterized in that: the outlet conduit of described hydraulic power source (1) is provided with pilot operated compound relief valve (2).
5. according to the described hydraulic press hydraulic control system of claim 2, it is characterized in that: described magnetic valve one (5) and magnetic valve four (18) are the 3-position 4-way solenoid directional control valve, and described magnetic valve two (4) and magnetic valve three (9) are two-position two-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020020509XU CN201580012U (en) | 2010-01-20 | 2010-01-20 | Hydraulic control system for hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020020509XU CN201580012U (en) | 2010-01-20 | 2010-01-20 | Hydraulic control system for hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201580012U true CN201580012U (en) | 2010-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020020509XU Expired - Fee Related CN201580012U (en) | 2010-01-20 | 2010-01-20 | Hydraulic control system for hydraulic press |
Country Status (1)
| Country | Link |
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| CN (1) | CN201580012U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261056A (en) * | 2011-05-06 | 2011-11-30 | 衢州市河川翻板闸门有限公司 | Hydraulic control system of flap gate |
| CN102605786A (en) * | 2012-04-09 | 2012-07-25 | 山河智能装备股份有限公司 | Pile pressing-in back stroke control system of static pile pressing-in machine and operation method of pile pressing-in back stroke control system |
| CN102705285A (en) * | 2012-05-21 | 2012-10-03 | 南通安捷机械有限公司 | Novel oil passage |
| CN103670995A (en) * | 2013-12-05 | 2014-03-26 | 中联重科股份有限公司 | Concrete pumping system and control device and method |
| CN103696305A (en) * | 2013-12-20 | 2014-04-02 | 江苏神王集团有限公司 | Four-row two-roller compacted wire rope rolling mill |
| CN105818426A (en) * | 2016-02-18 | 2016-08-03 | 南通皋液液压机有限公司 | Hydraulic system for sewage solid waste hydraulic machine |
| CN106593974A (en) * | 2016-12-12 | 2017-04-26 | 天津商企生产力促进有限公司 | Electromechanical machining mechanism with returning pressure stabilizing function |
| CN106593973A (en) * | 2016-12-12 | 2017-04-26 | 天津商企生产力促进有限公司 | Electromechanical processing mechanism |
| CN106762927A (en) * | 2016-12-12 | 2017-05-31 | 天津商企生产力促进有限公司 | Electromechanical organisation of working with backhaul decompression function |
| WO2017219338A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system of hydraulic machine for solid waste from sewage |
| CN112247217A (en) * | 2020-11-18 | 2021-01-22 | 浙江万丰奥威汽轮股份有限公司 | Chip breaking method for drilling machine |
-
2010
- 2010-01-20 CN CN201020020509XU patent/CN201580012U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261056B (en) * | 2011-05-06 | 2013-01-30 | 衢州市河川翻板闸门有限公司 | Hydraulic control system of flap gate |
| CN102261056A (en) * | 2011-05-06 | 2011-11-30 | 衢州市河川翻板闸门有限公司 | Hydraulic control system of flap gate |
| CN102605786A (en) * | 2012-04-09 | 2012-07-25 | 山河智能装备股份有限公司 | Pile pressing-in back stroke control system of static pile pressing-in machine and operation method of pile pressing-in back stroke control system |
| CN102705285B (en) * | 2012-05-21 | 2015-08-05 | 南通安捷机械有限公司 | A kind of novel oilway |
| CN102705285A (en) * | 2012-05-21 | 2012-10-03 | 南通安捷机械有限公司 | Novel oil passage |
| CN103670995A (en) * | 2013-12-05 | 2014-03-26 | 中联重科股份有限公司 | Concrete pumping system and control device and method |
| CN103670995B (en) * | 2013-12-05 | 2017-01-11 | 中联重科股份有限公司 | Concrete pumping system and control device and method |
| CN103696305A (en) * | 2013-12-20 | 2014-04-02 | 江苏神王集团有限公司 | Four-row two-roller compacted wire rope rolling mill |
| CN105818426A (en) * | 2016-02-18 | 2016-08-03 | 南通皋液液压机有限公司 | Hydraulic system for sewage solid waste hydraulic machine |
| WO2017219338A1 (en) * | 2016-06-24 | 2017-12-28 | 邵正国 | Hydraulic system of hydraulic machine for solid waste from sewage |
| CN106593974A (en) * | 2016-12-12 | 2017-04-26 | 天津商企生产力促进有限公司 | Electromechanical machining mechanism with returning pressure stabilizing function |
| CN106593973A (en) * | 2016-12-12 | 2017-04-26 | 天津商企生产力促进有限公司 | Electromechanical processing mechanism |
| CN106762927A (en) * | 2016-12-12 | 2017-05-31 | 天津商企生产力促进有限公司 | Electromechanical organisation of working with backhaul decompression function |
| CN112247217A (en) * | 2020-11-18 | 2021-01-22 | 浙江万丰奥威汽轮股份有限公司 | Chip breaking method for drilling machine |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20100915 Termination date: 20120120 |