CN102966632A - Energy-saving consumption reduction method of hydraulic system of friction welding machine - Google Patents

Energy-saving consumption reduction method of hydraulic system of friction welding machine Download PDF

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Publication number
CN102966632A
CN102966632A CN2012104630082A CN201210463008A CN102966632A CN 102966632 A CN102966632 A CN 102966632A CN 2012104630082 A CN2012104630082 A CN 2012104630082A CN 201210463008 A CN201210463008 A CN 201210463008A CN 102966632 A CN102966632 A CN 102966632A
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China
Prior art keywords
pressure
flow
pump
variable displacement
setting
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Pending
Application number
CN2012104630082A
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Chinese (zh)
Inventor
郭亚旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI HUIHONG MACHINERY MANUFACTURING Co Ltd
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WUXI HUIHONG MACHINERY MANUFACTURING Co Ltd
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Priority to CN2012104630082A priority Critical patent/CN102966632A/en
Publication of CN102966632A publication Critical patent/CN102966632A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an energy-saving consumption reduction method of a hydraulic system of a friction welding machine. The method comprises the following steps of: setting a proportional variable pump and providing and controlling movement speed of a sliding table; providing a corresponding control signal through a computer at a fast-forward stage and a fast-backward stage; controlling pressure of a proportional overflow valve and flow rate of a proportional pump respectively; setting to realize that a pressure set value of the proportional overflow valve is greater than pressure required in an idle travel movement process of a piston of a force application oil cylinder so as to realize no overflow loss; setting the flow rate of the proportional variable pump according to the required movement speed of the sliding table; and providing pressure oil required by action of each oil cylinder of the system by an additionally arranged constant pressure variable pump. The method has the beneficial effects that great reduction in the energy consumption of the system, low oil temperature raising speed and stable oil temperature control can be guaranteed, the equipment can quickly enter a normal working state, the energy efficiency of the hydraulic system is increased to a certain extent, and the electric energy is saved.

Description

A kind of energy-saving friction-welding machine hydraulic system consumption-reducing method
Technical field
The present invention relates to the hydraulics field, relate in particular to a kind of energy-saving friction-welding machine hydraulic system consumption-reducing method.
Background technique
Hydraulic system is constituent element important in the loader, and the upset of the swing arm lifting of loader, scraper bowl and complete machine such as turn to all to need to drive to finish by hydraulic system at the elemental motion.The too high problem of oil temperature often appears in loader in use hydraulic system, show according to factual survey, during loader work oil temperature in hydraulic system higher be one of principal element of affecting hydraulic system and reliability of hydraulic component and complete machine working efficiency.Therefore, guaranteeing that the thermal equilibrium temperature of loader hydraulic system is in normal state, is to guarantee the loader reliably working, improves the key of hydraulic system efficient; Cause that the too high factor of oil temperature in hydraulic system mainly contains: the pressure loss of the volumetric loss of oil hydraulic pump and oil hydraulic cylinder, valve element and pipeline parts, the mechanical friction loss of each class component etc.At present, in case domestic friction-welding machine hydraulic system mostly adopts the high pressure principle of overflow. start, master cylinder force application system, auxiliary system are to set maximum pressure and flow work, after the relevant oil cylinder piston stop motion, the relief valve overflow of most hydraulic oil by installing in the system, consumed power is large, heat yield is large, the hydraulic oil temperature rise is fast; Perhaps adopt hydraulic proportion valve and variable displacement pump control technique to reduce the energy consumption of friction-welding machine hydraulic system, but can not be effective fully.
Summary of the invention
The purpose of this invention is to provide that a kind of capacity usage ratio is high, energy consume little, energy-saving effect is better, can reduce the energy-saving friction-welding machine hydraulic system consumption-reducing method of equipment cost, to solve many deficiencies of prior art.
Purpose of the present invention is come specific implementation by the following technical programs:
A kind of energy-saving friction-welding machine hydraulic system consumption-reducing method mainly is comprised of following steps:
⑴ preset proportion variable displacement pump provides and controls the slide unit movement velocity, in F.F., rewind down stage, provides corresponding control signal by computer, respectively the flow of control ratio relief valve pressure and dosing pump;
⑵ the pressure set points of Set scale relief valve makes it without spill losses greater than needed pressure in the application of force oil cylinder piston idle stroke movement process; The flow of proportional variable pump is set according to required slide unit movement velocity, at friction and upset packing stage, according to the fluid leak case of Flow characteristics and the system of pump, little flow of preset proportion pump;
⑶ the required pressure oil of each cylinder action of auxiliary system is provided by the constant pressure variable displacement pump of setting up, oil circuit pressure is set up by each road reduction valve, the setting pressure of electromagnetic relief valve is greater than the setting pressure of constant pressure variable displacement pump, in the cylinder action process, when pressure during less than the constant pressure variable displacement pump setting pressure, constant pressure variable displacement pump is exported with the flowing full amount;
⑷ after reach the setting pressure of constant pressure variable displacement pump when pressure, system is in packing state, hydraulic oil only needs seldom, and flow can keep constant pressure, the output flow of constant pressure variable displacement pump reduces automatically, flow is set as required or is automatically regulated, the high pressure excess flow is little, and required motor power is corresponding to be reduced.
The beneficial effect of energy-saving friction-welding machine hydraulic system consumption-reducing method of the present invention is: can guarantee that system energy consumption reduces greatly, the oil temperature raising speed slow, oil temperature control is stable, make equipment can enter very soon normal working, improve to a certain extent the hydraulic system energy efficiency, saved electric energy.
Embodiment
The described energy-saving friction-welding machine hydraulic system consumption-reducing method of the embodiment of the invention, its key step comprises:
⑴ preset proportion variable displacement pump provides and controls the slide unit movement velocity, in F.F., rewind down stage, provides corresponding control signal by computer, respectively the flow of control ratio relief valve pressure and dosing pump;
⑵ the pressure set points of Set scale relief valve makes it without spill losses greater than needed pressure in the application of force oil cylinder piston idle stroke movement process; The flow of proportional variable pump is set according to required slide unit movement velocity, at friction and upset packing stage, according to the fluid leak case of Flow characteristics and the system of pump, little flow of preset proportion pump;
⑶ the required pressure oil of each cylinder action of auxiliary system is provided by the constant pressure variable displacement pump of setting up, oil circuit pressure is set up by each road reduction valve, the setting pressure of electromagnetic relief valve is greater than the setting pressure of constant pressure variable displacement pump, in the cylinder action process, when pressure during less than the constant pressure variable displacement pump setting pressure, constant pressure variable displacement pump is exported with the flowing full amount;
⑷ after reach the setting pressure of constant pressure variable displacement pump when pressure, system is in packing state, hydraulic oil only needs seldom, and flow can keep constant pressure, the output flow of constant pressure variable displacement pump reduces automatically, flow is set as required or is automatically regulated, the high pressure excess flow is little, and required motor power is corresponding to be reduced.

Claims (1)

1. an energy-saving friction-welding machine hydraulic system consumption-reducing method is characterized in that, mainly is comprised of following steps:
⑴ preset proportion variable displacement pump provides and controls the slide unit movement velocity, in F.F., rewind down stage, provides corresponding control signal by computer, respectively the flow of control ratio relief valve pressure and dosing pump;
⑵ the pressure set points of Set scale relief valve makes it without spill losses greater than needed pressure in the application of force oil cylinder piston idle stroke movement process; The flow of proportional variable pump is set according to required slide unit movement velocity, at friction and upset packing stage, according to the fluid leak case of Flow characteristics and the system of pump, little flow of preset proportion pump;
⑶ the required pressure oil of each cylinder action of auxiliary system is provided by the constant pressure variable displacement pump of setting up, oil circuit pressure is set up by each road reduction valve, the setting pressure of electromagnetic relief valve is greater than the setting pressure of constant pressure variable displacement pump, in the cylinder action process, when pressure during less than the constant pressure variable displacement pump setting pressure, constant pressure variable displacement pump is exported with the flowing full amount;
⑷ after reach the setting pressure of constant pressure variable displacement pump when pressure, system is in packing state, hydraulic oil only needs seldom, and flow can keep constant pressure, the output flow of constant pressure variable displacement pump reduces automatically, flow is set as required or is automatically regulated, the high pressure excess flow is little, and required motor power is corresponding to be reduced.
CN2012104630082A 2012-11-16 2012-11-16 Energy-saving consumption reduction method of hydraulic system of friction welding machine Pending CN102966632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012104630082A CN102966632A (en) 2012-11-16 2012-11-16 Energy-saving consumption reduction method of hydraulic system of friction welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012104630082A CN102966632A (en) 2012-11-16 2012-11-16 Energy-saving consumption reduction method of hydraulic system of friction welding machine

Publications (1)

Publication Number Publication Date
CN102966632A true CN102966632A (en) 2013-03-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104569817A (en) * 2014-12-31 2015-04-29 北京理工大学 Hydraulic loading motor performance testing experiment system and experiment method thereof
CN105665914A (en) * 2016-03-03 2016-06-15 芜湖日升重型机床有限公司 Hydraulic system of friction welding machine tool
CN109268344A (en) * 2018-10-24 2019-01-25 武汉科技大学 A kind of governor valve Instantaneous Flow test device and its test method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712528A (en) * 1969-05-12 1973-01-23 Toyoda Automatic Loom Works Friction welding apparatus having means for continuously regulating heat generated during welding operation
CN101059694A (en) * 2007-06-05 2007-10-24 西北工业大学 Friction welding machine closed loop control device
CN101168214A (en) * 2007-12-03 2008-04-30 西北工业大学 Friction welding machine proportion variable hydraulic control system
CN101927401A (en) * 2009-06-25 2010-12-29 上海沪工电焊机制造有限公司 Welder device and sliding table control method
CN101934425A (en) * 2009-06-30 2011-01-05 上海沪工电焊机制造有限公司 Hydraulic control system of friction welding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3712528A (en) * 1969-05-12 1973-01-23 Toyoda Automatic Loom Works Friction welding apparatus having means for continuously regulating heat generated during welding operation
CN101059694A (en) * 2007-06-05 2007-10-24 西北工业大学 Friction welding machine closed loop control device
CN101168214A (en) * 2007-12-03 2008-04-30 西北工业大学 Friction welding machine proportion variable hydraulic control system
CN101927401A (en) * 2009-06-25 2010-12-29 上海沪工电焊机制造有限公司 Welder device and sliding table control method
CN101934425A (en) * 2009-06-30 2011-01-05 上海沪工电焊机制造有限公司 Hydraulic control system of friction welding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104569817A (en) * 2014-12-31 2015-04-29 北京理工大学 Hydraulic loading motor performance testing experiment system and experiment method thereof
CN105665914A (en) * 2016-03-03 2016-06-15 芜湖日升重型机床有限公司 Hydraulic system of friction welding machine tool
CN109268344A (en) * 2018-10-24 2019-01-25 武汉科技大学 A kind of governor valve Instantaneous Flow test device and its test method

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Application publication date: 20130313