CN1928380A - Hydraulic control system for viscosity speed regulation clutch - Google Patents
Hydraulic control system for viscosity speed regulation clutch Download PDFInfo
- Publication number
- CN1928380A CN1928380A CN 200610032089 CN200610032089A CN1928380A CN 1928380 A CN1928380 A CN 1928380A CN 200610032089 CN200610032089 CN 200610032089 CN 200610032089 A CN200610032089 A CN 200610032089A CN 1928380 A CN1928380 A CN 1928380A
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- oil
- pipe
- heat pipe
- heat exchanger
- pump
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses to a new hydraulic-control system applied in air fan, pump or hydro vicious speed governing clutch of soft-starting in other larger scale equipment. Hydraulic oil in oil tank 2 is used to lubricate, cool and transmit torque to positive frictional plate 28 and negative friction plate 28'through outlet pipe 21 of heat exchange of heat pipe 22, pump with lubricated oil 19, inlet of positive shaft 16 of clutch host by oil pipe 17; another oil is used to connect positive frictional plate 28 and negative friction plate 28'through oil delivery pipe 20, controlling oil pump 8, finish filter 12 and the inlet of negative shaft 15 by oil pipe 14. When adjusting speed, only setting speed value of controller 13 is changed. Controller 13 controls converter 6 and motor 7 to adjust speed and then oil pressure on inlet of negative 15 is changed.
Description
Technical field
The present invention relates to a kind of hydraulic control system, relate in particular to a kind of hydraulic control system that can be used for the hydro-viscous speed governing clutch that links with the high speed rotating working machine in the equipment such as blower fan, water pump.
Background technique
Hydro-viscous speed governing clutch is made up of speed governing main frame and hydraulic control system, its structure is formed normally: the lubricated oil pump after the oil filter of the high temperature hydraulic oil some in the fuel tank is drawn and is entered cooler, the active axle head of sending into the speed governing main frame again through cooled oil is lubricated so that cooling friction plate for friction plate, and another part of high temperature hydraulic oil absorbs through the controlled oil pump in oil filter back and enters essential oil and filter and be back to fuel tank through electricity liquid ratio relief valve again.After becoming the output speed on the driven axle into electrical signal, speed probe on the driven axle of speed governing main frame (the passive working machine that is coupling---as the rotating shaft of blower fan or water pump etc.) sends into controller, controller with the speed setting value of this electrical signal and driven axle compare, after computing and the judgement with electrical signal output and send into electricity liquid ratio relief valve, change the size of controller speed setting value, also just changed the control electric current of electricity liquid ratio relief valve, also change the oil pressure of speed governing main frame oil cylinder, thereby reached the purpose of control speed governing main frame output (being driven axle) rotating speed.Though the control system of this structure shape can reach control speed governing main frame output speed, and then the purpose that realizes regulating the working machine rotating speed, the problem that exists is:
1. the be in operation pollutant (mainly being abrasive dust) that carries of high temperature hydraulic oil is too many, often causes the obstruction of essential oil filter and electricity liquid ratio relief valve, influences hydro-viscous speed governing clutch and normally moves.
2. employed traditional oils cooler, compressive strength is low, and is connected in the outlet end of lubricating pump again, when oil pressure or cooling water pressure rising, easily punctures the metal heat exchanger surface of cooler, the accident that the hydro-viscous speed governing clutch profit mixes mutually occurs.
3. because of cooler is connected in the lubricating pump outlet end, its working efficiency reduces after lubricating pump sucks high temperature oil, poor working environment, even cause and burn out the motor that joins with lubricating pump;
4. the existing cooler volume that uses is big, and floor space is big, and can only with the discrete installation of the casing of fuel tank, need be connected with pipeline between the casing of cooler and fuel tank, and are neither attractive in appearance, are unfavorable for operation and upkeep operation again;
5. the existing cooler drag losses that uses is big, and the thermal efficiency is low, the bad cleaning of incrustation scale.
Summary of the invention
In order to solve the technical problem that prior art exists, the invention provides a kind of novel hydraulic control system that improves hydro-viscous speed governing clutch operation stability, reliability, expansion hydro-viscous speed governing clutch application surface and reduce the hydro-viscous speed governing clutch of hydro-viscous speed governing clutch manufacture cost.
For achieving the above object, the technical solution used in the present invention is: change traditional cooler into heat pipe heat exchanger, described heat pipe heat exchanger is newly-designed product.Lubricant oil comes out to go into the oil inlet pipe of heat pipe heat exchanger from fuel tank after coarse-grain filtering device filters, come out to enter respectively lubricating pump and control oil pump through the lower floor of heat pipe heat exchanger from oil outlet tube again.The upper strata circulation cooling water of heat pipe heat exchanger, lower floor's circulation hydraulic oil.Lubricating pump is by a driven by motor.Send into the oiler of clutch main frame through oil pipe to the friction plate lubricate from the oil that lubricating pump comes out.Send into the control oil pump from the hydraulic oil that heat pipe heat exchanger comes out through sending oil pipe, control oil pump connection motor, motor and frequency variator link.With electrical signal line the speed probe on frequency variator, controller and the driven axle is linked.The outlet of control oil pump connects fine filter, sends into the filler opening of main frame driven axle from the oil of outlet after an oil pipe is with the essence filter of fine filter.Draw two return tubes between control oil pump and fine filter respectively: a return tube is introduced fuel tank through throttle valve, two-position two-way solenoid valve, and another return tube is introduced fuel tank through safety valve.
A kind of novel hydraulic control system that is used for hydro-viscous speed governing clutch that adopts that as above technological scheme provides compared with prior art, its beneficial effect is:
1. redesign is little with the heat pipe heat exchanger volume that uses, the heat transfer efficiency height, and resistance is little, and it is convenient to clean, low cost of manufacture;
2. after heat pipe heat exchanger being connected to the inlet of lubricating pump and control oil pump, improve lubricating pump and the working efficiency of controlling oil pump, improved the working environment of lubricating pump and control oil pump, reduce the control oil temperature of being defeated by main frame by the control oil pump, prolonged the working life of main frame bearing and Sealing; Because of lubricating pump is a negative pressure with the inlet of controlling oil pump, do not have the security incident of damaging heat pipe heat exchanger because of superpressure simultaneously, improved the functional reliability of hydro-viscous speed governing clutch;
3. cancelled electricity liquid ratio relief valve, use the oil pressure of frequency converter timing control oil pump instead after, thoroughly solved because of electricity liquid ratio relief valve and fine filter stop up the hydraulic fault that produces, improved the operational reliability of hydro-viscous speed governing clutch;
4. designed rectangle heat pipe heat exchanger with manufacturing can fuse with fuel tank, has cancelled connecting tube to each other, helps operation and upkeep operation.
Description of drawings
Fig. 1 is a kind of structural representation that is used for the novel hydraulic control system of hydro-viscous speed governing clutch of the present invention, also is Figure of abstract of the present invention.
The structural representation of the heat pipe heat exchanger that provided is provided Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Clear for describing, the clutch main frame relevant with the novel hydraulic control system of described a kind of hydro-viscous speed governing clutch marks at Fig. 1 simultaneously.The driving shaft 16 of clutch main frame links with the axle of respective electrical motivation, and the rotating speed of driving shaft 16 equal the to link rotating speed of motor, be invariable, and the rotating shaft of driven axle 15 working machines of clutch main frame (as blower fan, water pump or other large industry equipment etc.), the rotating speed of driven axle 15 be according to working machine at a time between section required rotating speed and fixed, so the rotating speed of driven axle 15 changes.Driving shaft 16 is associated in active friction plate 28, and driven axle 15 is with driven friction 28 ' be associated in.
In fuel tank 2, be provided with coarse-grain filtering device 1, hydraulic oil in the fuel tank 2 carries out primary filter through coarse-grain filtering device 1, through the hydraulic oil behind the primary filter from lower floor that the outlet that is connected in coarse-grain filtering device 1 and the oil inlet pipe 25 between the heat pipe heat exchanger 22 enter heat pipe heat exchanger 22, for heat pipe heat exchanger 22 splicing of rectangle is an one with fuel tank 2 structures, saved unnecessary connecting tube on the sidewall of fuel tank 2.The upper strata of heat pipe heat exchanger 22 is equipped with intake pipe 23 and outlet pipe 24, in heat pipe heat exchanger 22, be equipped with N (integer of N＞1) root heat pipe 26, the light pipe section of heat pipe 26 is positioned at the upper strata of heat pipe heat exchanger 22, and the heat pipe evaporator section that is fixedly connected with the heat pipe 26 of N ' (integer of N '＞1) sheet fin is positioned at the lower floor of heat pipe heat exchanger 22.High temperature hydraulic oil by heat pipe heat exchanger 22 lower floors can and be passed to the light pipe section with heat with the heat pipe evaporator section heating of heat pipe 26 can offer the user to the water heat temperature raising on heat pipe heat exchanger 22 upper stratas of flowing through, and also works to reduce the hydraulic oil temperature of the heat pipe heat exchanger 22 of flowing through simultaneously.Blowdown valve 27 is equipped with in bottom side in heat pipe heat exchanger 22 lower floors, opens blowdown valve 27 and greasy dirt in the heat pipe heat exchanger 22 can be discharged.A road of oil outlet tube 21 on the heat pipe heat exchanger 22 connects the inlet of lubricating pump 19, and lubricating pump 19 connects motor 18, motor 18 open with the startup that stops to realize lubricating pump 19 with close.The outlet of lubricating pump 19 has the oiler of oil pipe 17 clutch main frame driving shafts 16.Because of the rotating speed of motor 18 can not be regulated, thus lubricating pump 19 can be consistently with hydraulic oil from fuel tank 2 through the minimum heat pipe heat exchanger 22 of resistance be transported to the active friction plate 28 of clutch main frame and driven friction 28 ' between and form oil film.Active friction plate 28 is associated in driving shaft 16 simultaneously, and the hydraulic oil that enters driving shaft 16 oilers from oil pipe 17 can be to active friction plate 28, driven friction 28 ' lubricated and cooling action.On another road of oil outlet tube 21 oiler that send oil pipe 20 to connect control oil pump 8 is arranged, control oil pump 8 links with motor 7, and motor 7 links with frequency variator 6, and described frequency variator 6 can be selected from the frequency variator of power less than 5kw.Be furnished with electrical signal line 29 between frequency variator 6 and the controller 13, controller 13 is through electrical signal line 29 ' link with the speed probe 30 that is placed on the driven axle 15, and driven axle 15 is with the driven friction 28 of clutch main frame ' be associated in.The outlet end of control oil pump 8 and the entry end of fine filter 12 link, and the outlet end of fine filter 12 is through the filler opening of oil pipe 14 driven axles 15.When working machine (as blower fan, the water pump etc.) high speed operation that need link with driven axle 15, rotating speed on the measured driven axle 15 of the tach signal (being setting value) that operator set controller 13 and speed probe 30 becomes electrical signal through electrical signal line 29 ' send into controller 13, described controller 13 is a prior art, available PLC, PAC, PIC etc.Controller 13 compares tach signal and the setting value that receives, after computing and the judgement, give frequency variator 6 with output signal through electrical signal line 29, frequency variator 6 control motors 7 rotate, motor 7 drives 8 actions of control oil pump again, make hydraulic oil enter control oil pump 8 again through fine filter 12 through heat pipe heat exchanger 22 and oil inlet pipe 20 from fuel tank 2, oil pipe 14 is sent into the filler opening of driven axle 15, the hydraulic oil that enters promotes the driven friction 28 that links with driven axle 15 ' move and close with active friction plate 28 even closely contact to as shown in Figure 1 the right direction, active friction plate 28 by hydraulic oil with moment of torsion pass to driven friction 28 ', so the active friction plate 28 of high speed rotating drives driven friction 28 ' high speed rotating through the oil film that hydraulic oil forms, and then make driven axle 15 high speed rotating, can realize the working machine high speed rotating that links with driven axle 15, reach the purpose of regulating at a high speed.One end of two-position two-way solenoid valve 9 is through return tube 4 UNICOM's fuel tanks 2, and the other end of two-position two-way solenoid valve 9 is connected the outlet end of control oil pump 8 through throttle valve 11.When after driven axle 15 is through one section high speed operation, needing to reduce rotating speed, speed probe 30 measured tach signals on the tach signal (being setting value) that operator set controller 13 and the driven axle 15 compare, after computing and the judgement, controller 13 is given frequency variator 6 with output signal through electrical signal line 29, the rotating speed of frequency variator 6 control motors 7 and control oil pump 8, reduction enters the oil pressure of the filler opening on the driven axle 15 through fine filter 12 and oil pipe 14, make driven friction 28 ' to moving to left as shown in Figure 1, it is driven friction 28 ' progressively leave active friction plate 28, thereby make driven friction 28 ' reduction rotating speed that the rotating speed of driven axle 15 is progressively descended, finally make the rotating speed with driven axle 15 joining working machines be reduced to required setting value, reach the purpose of speed governing.The overflow oil circuit work of when driven axle 15 is in speed governing operation, forming by throttle valve 11, two-position two-way solenoid valve 9 and return tube 4, this moment, two-position two-way solenoid valve 9 was in opening state, and hydraulic oil is by overflow oil circuit oil sump tank 2.For the safety of The whole control system, in the oil outlet termination of controlling oil pump 8 safety valve 10 is arranged, safety valve 10 can be selected superpressure earial drainage safety valve for use.Safety valve 10 is through return tube 5 UNICOM's fuel tanks 2.The oil extraction of clutch main frame is sent into fuel tank 2 by main frame return tube 3.
Claims (1)
1, a kind of novel hydraulic control system that is used for hydro-viscous speed governing clutch, driving shaft (16) is associated in active friction plate (28), and driven axle (15) is associated in driven friction (28 '); It is characterized in that: be provided with coarse-grain filtering device (1) in fuel tank (2), oil inlet pipe (25) is connected between the outlet and heat pipe heat exchanger (22) of coarse-grain filtering device (1), and heat pipe heat exchanger (22) splices on the sidewall of fuel tank (2); On heat pipe heat exchanger (22) upper strata intake pipe (23), outlet pipe (24) are installed, N root heat pipe (26) is arranged in the heat pipe heat exchanger (22), the light pipe section of heat pipe (26) is positioned at the upper strata of heat pipe heat exchanger (22), the heat pipe evaporator section that is fixedly connected with the heat pipe (26) of N ' sheet fin is positioned at the lower floor of heat pipe heat exchanger (22), in the bottom side of heat pipe heat exchanger (22) lower floor blowdown valve (27) is housed; A road of oil outlet tube (21) on the heat pipe heat exchanger (22) connects the inlet of lubricating pump (19), and lubricating pump (19) connects motor (18), and the outlet of lubricating pump (19) has the oiler of the driving shaft (16) of oil pipe (17) connection clutch main frame; The oiler that send oil pipe (20) to connect control oil pump (8) is arranged on another road of oil outlet tube (21), control oil pump (8) links with motor (7), motor (7) links with frequency variator (6), be furnished with electrical signal line (29) between frequency variator (6) and the controller (13), controller (13) links through electrical signal line (29 ') and the speed probe (30) that is placed on the driven axle (15); The outlet end of control oil pump (8) and the entry end of fine filter (12) link, and the outlet end of fine filter (12) is through the filler opening of oil pipe (14) connection driven axle (15); One end of two-position two-way solenoid valve (9) is through return tube (4) UNICOM's fuel tank (2), the other end of two-position two-way solenoid valve (9) is connected the outlet end of control oil pump (8) through throttle valve (11), outlet end at control oil pump (8) is connected to safety valve (10), and safety valve (10) is through return tube (5) UNICOM's fuel tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100320895A CN100404901C (en) | 2006-08-11 | 2006-08-11 | Hydraulic control system for viscosity speed regulation clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100320895A CN100404901C (en) | 2006-08-11 | 2006-08-11 | Hydraulic control system for viscosity speed regulation clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1928380A true CN1928380A (en) | 2007-03-14 |
| CN100404901C CN100404901C (en) | 2008-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100320895A Expired - Fee Related CN100404901C (en) | 2006-08-11 | 2006-08-11 | Hydraulic control system for viscosity speed regulation clutch |
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| CN (1) | CN100404901C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156430A (en) * | 2010-12-02 | 2011-08-17 | 威海华东数控股份有限公司 | Device and method for variable-frequency control of thickness of oil film on guide rail |
| CN102507335A (en) * | 2011-10-31 | 2012-06-20 | 朱留存 | Pressure resistance test stand for double clutches |
| CN102656994A (en) * | 2012-05-18 | 2012-09-12 | 一拖(洛阳)柴油机有限公司 | Electro-hydraulic control engine power output device |
| CN102744598A (en) * | 2011-04-21 | 2012-10-24 | 宋天相 | Engine-driven steel rail bolt wrench |
| CN103629267A (en) * | 2013-11-26 | 2014-03-12 | 江苏大学 | Energy-saving hydraulic system of liquid viscosity speed regulation clutch |
| CN104047925A (en) * | 2014-06-06 | 2014-09-17 | 江苏大学 | Liquid viscosity transmission tester with hydraulic load device |
| CN104896058A (en) * | 2015-04-22 | 2015-09-09 | 无锡市飞度自动化设备有限公司 | Magnetic-liquid mixed type speed adjusting device |
| CN111348381A (en) * | 2020-03-20 | 2020-06-30 | 中国矿业大学 | Heavy-load speed-regulating starting device and control method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0823379B2 (en) * | 1987-03-26 | 1996-03-06 | 三輪精機株式会社 | Clutch control device |
| DE10327519A1 (en) * | 2003-06-17 | 2005-01-20 | Ortlinghaus-Werke Gmbh | Hydraulic circuit |
| US7290389B2 (en) * | 2003-07-22 | 2007-11-06 | Eaton Corporation | Hydraulic drive system and improved filter sub-system therefor |
| CN100339602C (en) * | 2004-12-15 | 2007-09-26 | 中国船舶重工集团公司第七一一研究所 | Speed regulating clutch control system with pilot type servo valve |
-
2006
- 2006-08-11 CN CNB2006100320895A patent/CN100404901C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102156430A (en) * | 2010-12-02 | 2011-08-17 | 威海华东数控股份有限公司 | Device and method for variable-frequency control of thickness of oil film on guide rail |
| CN102744598A (en) * | 2011-04-21 | 2012-10-24 | 宋天相 | Engine-driven steel rail bolt wrench |
| CN102507335A (en) * | 2011-10-31 | 2012-06-20 | 朱留存 | Pressure resistance test stand for double clutches |
| CN102656994A (en) * | 2012-05-18 | 2012-09-12 | 一拖(洛阳)柴油机有限公司 | Electro-hydraulic control engine power output device |
| CN103629267A (en) * | 2013-11-26 | 2014-03-12 | 江苏大学 | Energy-saving hydraulic system of liquid viscosity speed regulation clutch |
| CN103629267B (en) * | 2013-11-26 | 2015-12-09 | 江苏大学 | A kind of hydro-viscous speed governing clutch energy-saving hydraulic system |
| CN104047925A (en) * | 2014-06-06 | 2014-09-17 | 江苏大学 | Liquid viscosity transmission tester with hydraulic load device |
| CN104896058A (en) * | 2015-04-22 | 2015-09-09 | 无锡市飞度自动化设备有限公司 | Magnetic-liquid mixed type speed adjusting device |
| CN104896058B (en) * | 2015-04-22 | 2017-03-08 | 无锡煤矿机械股份有限公司 | A kind of liquid mixed arrangements for speed regulation of magnetic |
| CN111348381A (en) * | 2020-03-20 | 2020-06-30 | 中国矿业大学 | Heavy-load speed-regulating starting device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100404901C (en) | 2008-07-23 |
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Granted publication date: 20080723 Termination date: 20110811 |