CN201645883U - Proportional supercharging control circuit used for hydraulic system of press - Google Patents

Proportional supercharging control circuit used for hydraulic system of press Download PDF

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Publication number
CN201645883U
CN201645883U CN2009202894107U CN200920289410U CN201645883U CN 201645883 U CN201645883 U CN 201645883U CN 2009202894107 U CN2009202894107 U CN 2009202894107U CN 200920289410 U CN200920289410 U CN 200920289410U CN 201645883 U CN201645883 U CN 201645883U
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CN
China
Prior art keywords
valve
hydraulic
control circuit
proportional
press
Prior art date
Application number
CN2009202894107U
Other languages
Chinese (zh)
Inventor
杨宗维
Original Assignee
武汉景宏工贸有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 武汉景宏工贸有限公司 filed Critical 武汉景宏工贸有限公司
Priority to CN2009202894107U priority Critical patent/CN201645883U/en
Application granted granted Critical
Publication of CN201645883U publication Critical patent/CN201645883U/en

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Abstract

The utility model relates to a proportional supercharging control circuit used for hydraulic system of press which is a hydraulic mechanical equipment for moulding products by pressure. The control circuit comprises a motor, a booster pump, a proportional overflow valve, a check valve, a pressure gauge and a throttle valve. The control circuit is characterized in that: the proportional overflow valve is in parallel connection with the booster pump; the hydraulic oil in the tank is driven by the motor to flow through the check valve, the pressure gauge, the throttle valve, and is transported into the main cylinder of the press at the front end of the main cylinder control circuit. In the a proportional supercharging control circuit of the design, the system pressure of the booster pump preset according to the program is started by the motor, and continuous proportional control is performed by the proportional overflow valve, thereby the booster pump can increase the pressure continuously proportionally gradually instead of working at full load all the time; therefore the control circuit of the utility model reduces energy consumption, reduces the oil leakage of hydraulic control valve member, reduces the damage and maintenance expenditure of related valve members, and improves product quality; in short, it not only guarantees the product quality, but also reduces the energy consumption and maintenance expenditure.

Description

A kind of ratio pressurization control loop that is used for hydraulic system of press
Technical field
A kind of ratio pressurization control loop that is used for hydraulic system of press of the utility model relates to the hydraulic machinery equipment that is used for product compression moulding.
Background technology
At present, the production of the many industry and the product for civilian use, extensively adopt the press compression moulding of hydraulic transmission, in actual production process, the required pressure of shaping mechanism work is by the electric motor starting oil pump pressure oil to be controlled by the control valve in loop, the press of prior art is when extrusion forming, be to make oil pressure rise to high pressure at short notice also to keep constant within a certain period of time, this boosting mode is with respect to controlling the mode that increases oil pressure within a certain period of time in proportion, the former has caused unnecessary energy resource consumption undoubtedly, and cause control valve, the leakage of hydraulic pump hydraulic oil under high pressure conditions, the also corresponding rising of oil temperature, and the leakage under high temperature of hydraulic system leaks considerably beyond low temperature, thereby the load and the energy consumption of system have more been increased the weight of, and it is constant that high pressure is difficult to keep, the loss and the initial failure of various valve members have also been increased, in addition, because of oily temperature rise, the water cooling system that one cover reduces the oil temperature also need additionally be set, energy resource consumption and equipment investment have been increased undoubtedly again, to this present situation, must seeking solution.
The utility model content
The purpose of this utility model provides a kind of ratio pressurization control loop that is used for hydraulic system of press, makes it progressively to increase pari passu continuously hydraulic system pressure, saves energy resource consumption, and the leakage of oil problem of corresponding solution valve member.
The purpose of this utility model realizes by following scheme: a kind of ratio pressurization control loop that is used for hydraulic system of press, form by motor, booster pump, proportional pressure control valve, check valve, Pressure gauge and choke valve, characteristics are that proportional pressure control valve is in parallel with booster pump, under motor-driven, the hydraulic oil of fuel tank through check valve, Pressure gauge, choke valve, is transported to the press master cylinder at the front end of master cylinder control loop.
Owing in the master cylinder control loop of hydraulic system of press, adopted the design's ratio pressurization control loop, system pressure through the setting of electric motor starting booster pump follow procedure, the passing ratio overflow valve carries out continuously, proportion control, so booster pump does not need full load condition work all the time, but progressively increase pressure continuously pari passu, so have the following advantages: 1. when non-operation with high pressure, press only needs conventional pressure can finish relevant action, save energy consumption, reduced the leakage of oil of hydraulic control valve member; 2. precise and stablely provide compacted products required pressure, improved product quality, 3, reduced oily temperature owing to reducing leakage of oil, thus need not cooling system, and it is about 1/2 that volume of fuel tank is reduced, and reduces the floor space of board, minimizing press manufacturing expense; 4. the damage and the maintenance cost of relevant valve member have been reduced.In a word, the design had both guaranteed product quality, greatly reduced energy resource consumption and maintenance cost again.
Description of drawings
Fig. 1 the utility model structural representation
The specific embodiment
How now further specify the utility model in conjunction with the accompanying drawings implements:
The design's ratio pressurization control loop, form by motor, booster pump, proportional pressure control valve, check valve, Pressure gauge and choke valve, characteristics are that proportional pressure control valve is in parallel with booster pump, under motor-driven, the hydraulic oil of fuel tank through check valve, Pressure gauge, choke valve, is transported to the press master cylinder at the front end of master cylinder control loop.
When implementing this programme, just depress at 5Mpa by oil circuit and control system earlier and finish matched moulds and tentatively suppress action by the main oil pump P of press, then enter supercharging pressurize program, start working in the pressurization control loop, its motor 1 starts booster pump 2, and passing ratio overflow valve 3 control booster pumps 2 are exported hydraulic oil in proportion, through check valve 4, choke valve 6, front end at master cylinder control loop L is transported to press master cylinder 7, is provided with Pressure gauge 5 between check valve 4 and choke valve 6.System progressively boosts to 18Mpa and pressurize by the micro computer setting program of boosting, and boosts, after pressurize finishes, and the pressurization control loop quits work, and hydraulic system of press works on, and finishes other operation sequences such as press die sinking.For example, in the enforcement, the design's pressurization control loop motor 1 power is 2.2KW, because the design's proportional pressure control valve 3 progressively boosted in 30 to 40 second time continuously pari passu, its actual mean consumption power has only about 600W, and the motor of press system does not need to operate at full capacity, and therefore, has reduced the actual power consumption of motor yet.

Claims (2)

1. ratio pressurization control loop that is used for hydraulic system of press, form by motor, booster pump, proportional pressure control valve, check valve, Pressure gauge and choke valve, it is characterized in that proportional pressure control valve (3) is in parallel with booster pump (2), under motor (1) drives, the hydraulic oil of fuel tank through check valve (4), choke valve (6), is transported to press master cylinder (7) at the front end of master cylinder control loop (L).
2. a kind of ratio pressurization control loop that is used for hydraulic system of press according to claim 1, its feature is provided with Pressure gauge (5) between check valve (4) and choke valve (6).
CN2009202894107U 2009-12-22 2009-12-22 Proportional supercharging control circuit used for hydraulic system of press CN201645883U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202894107U CN201645883U (en) 2009-12-22 2009-12-22 Proportional supercharging control circuit used for hydraulic system of press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202894107U CN201645883U (en) 2009-12-22 2009-12-22 Proportional supercharging control circuit used for hydraulic system of press

Publications (1)

Publication Number Publication Date
CN201645883U true CN201645883U (en) 2010-11-24

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Family Applications (1)

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CN2009202894107U CN201645883U (en) 2009-12-22 2009-12-22 Proportional supercharging control circuit used for hydraulic system of press

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CN (1) CN201645883U (en)

Cited By (8)

* Cited by examiner, † Cited by third party
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
CN103042707A (en) * 2012-12-18 2013-04-17 河海大学常州校区 Mechanical hydraulic combination-drive pressing machine
CN103612350A (en) * 2013-11-28 2014-03-05 青岛国盛达科技股份有限公司 Hydraulic system of tire vulcanization equipment
CN106079534A (en) * 2016-05-26 2016-11-09 湖南利邦生物能源科技有限公司 A kind of biomass fuel cold pressing forming process
CN106393768A (en) * 2016-09-14 2017-02-15 湖南利邦生物能源科技有限公司 Hydraulic pressing system and control method thereof
CN106584914A (en) * 2016-12-08 2017-04-26 太原重型机械集团工程技术研发有限公司 Pressure applying equipment
CN107344425A (en) * 2016-05-04 2017-11-14 叶明坦 A kind of fully-automatic biomass fuel accelerates supercharging forming machine and its control method
CN109489982A (en) * 2018-12-10 2019-03-19 中国航发南方工业有限公司 Engine testsand fuel system

Cited By (10)

* Cited by examiner, † Cited by third party
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
CN103042707A (en) * 2012-12-18 2013-04-17 河海大学常州校区 Mechanical hydraulic combination-drive pressing machine
CN103042707B (en) * 2012-12-18 2015-08-12 河海大学常州校区 Mechanical-hydraulic Hybrid-Driven Mechanical Press
CN103612350A (en) * 2013-11-28 2014-03-05 青岛国盛达科技股份有限公司 Hydraulic system of tire vulcanization equipment
CN107344425A (en) * 2016-05-04 2017-11-14 叶明坦 A kind of fully-automatic biomass fuel accelerates supercharging forming machine and its control method
CN106079534A (en) * 2016-05-26 2016-11-09 湖南利邦生物能源科技有限公司 A kind of biomass fuel cold pressing forming process
CN106393768A (en) * 2016-09-14 2017-02-15 湖南利邦生物能源科技有限公司 Hydraulic pressing system and control method thereof
CN106584914A (en) * 2016-12-08 2017-04-26 太原重型机械集团工程技术研发有限公司 Pressure applying equipment
CN106584914B (en) * 2016-12-08 2019-03-15 太原重型机械集团工程技术研发有限公司 Pressure application devices
CN109489982A (en) * 2018-12-10 2019-03-19 中国航发南方工业有限公司 Engine testsand fuel system

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C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20161222

CF01 Termination of patent right due to non-payment of annual fee