CN103697084B - The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable - Google Patents
The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable Download PDFInfo
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- CN103697084B CN103697084B CN201310723522.XA CN201310723522A CN103697084B CN 103697084 B CN103697084 B CN 103697084B CN 201310723522 A CN201310723522 A CN 201310723522A CN 103697084 B CN103697084 B CN 103697084B
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention belongs to technical field of fluid viscosity transmission, be specifically related to a kind of fluid viscidity timing clutch of fan speed-regulating.The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable, its technological scheme is, the power of fluid viscidity timing clutch is by the outer hub input of the clutch of tape input gear, transmission of power working oil is by input shaft axle head fuel feeding, control oil to move axially by mounting plate controlling oil duct promotion piston, change friction pair gap, output rotating speed regulation, be uniformly distributed by circumference after working oil is entered by input shaft axle head, the oilhole engaging friction of axially not isometrical distribution is secondary, oil film bearing capacity and lubrication are provided.The present invention make special vehicle fan fluid viscidity timing clutch meet power transimission, stepless speed regulation, heat radiation all even be convenient to control condition under, can ensure that it has good speed stability and speed adjusting performance.
Description
Technical field
The invention belongs to technical field of fluid viscosity transmission, be specifically related to a kind of fluid viscidity timing clutch of fan speed-regulating.
Background technique
Special vehicle is in the starting stage, and engine temperature is lower, and starting fast and effectively needs motor can reach operating temperature rapidly, now requires that motor has less heat radiation.Meanwhile, the working environment very severe of special vehicle, its motor also works long hours, as climbing, sand ground, slob etc. except normal work under low speed of being everlasting, heavy duty.At this moment motor heating value is very large, requires that motor has good radiating effect.Meanwhile, along with the raising of drive train power, the power of engine blower consumption has become a key factor of restriction power performance.For the radiating effect that effectively improves engine blower is to adapt to the different duty requirements of special vehicle and to reduce the power that fan consumes, need on existing fluid viscidity timing clutch basis, develop and a kind of there is good speed stability and the fluid viscidity timing clutch of speed adjusting performance.
Application number be 201110047931.3 Chinese invention patent disclose a kind of radial compact vehicle fan speed regulation device, primarily of outer hub, piston, spring, oil cylinder, be furnished with cover, main shaft, bearing, input gear and active and passive friction plate form friction pair form.This device take viscous liquid as working medium, relies on oil-shear between friction pair to carry out transferring power, changes output speed.This device adopts " T " font power transimission mode, and adopts inverse proportion electro-hydraulic proportional valve to carry out controlling to avoid the damage of rigid pipe.The pattern that this device adopts axle two ends to export, effectively reduce fan for vehicle transmission space size, but this patent does not consider the impact of speed governing stability.
Application number be 201120124283.2 Chinese utility model patent disclose a kind of fluid viscidity timing clutch, this device is by upper lower box, transmission shaft, transmission shaft in upper lower box is set with gear ring, right support abutment, piston, passive hub, joins the formation such as oil jacket and measure speed gears, the adjustment of rotating speed is controlled by the electro-hydraulic proportional valve of upper box valve plate, and this patent does not have the impact analysis of speed adjusting performance.
Application number be 201210389516.0 Chinese invention patent disclose a kind of hydro-viscous speed governing clutch, this device comprises driving mechanism, control mechanism, driving shaft transparent cover and driven axle transparent cover, and its control mechanism comprises first, second piston cylinder.Be provided with in the axial oil duct of this device driving shaft and control oil pipe, the axial oil duct controlling oil pipe and driving shaft is not connected.Second radial direction oil of this device driving shaft transparent cover is communicated with control oil pipe by the 3rd radial direction oil of driving shaft, controls oil pipe and is communicated with the working oil oil pocket of the second piston cylinder by the second radial direction oil of driving shaft.The axial oil duct of this device driven axle is communicated with the working oil oil pocket of first piston cylinder by the second radial direction oil of driven axle.This device achieves double-piston Bidirectional compacting mode by the structure changing driving shaft, changes oil circuit control, alleviates the eccentric wear problem of active and passive friction plate, improves the stability that fluid viscidity timing clutch exports.
Application number be 201210344886.2 Chinese invention patent disclose a kind of high-speed high-power fan speed adjusting device for special vehicle, this device comprise tape input gear the outer hub of clutch, control oil cylinder, external tooth friction plate, pairing steel sheet, pressing plate, bearing support, axle sleeve, power output gear, right output shaft spring bearing, output shaft, the outer hub spring bearing of right clutch, piston, return spring, spring guide finger, the outer hub spring bearing of left clutch, left output shaft spring bearing, by moving plate, radial direction oil hole, snap ring.Input gear and the outer hub of clutch adopt integrated design, improve the compactedness of structure, reduce the quality of device, improve reliability, but this device cannot realize the accurate control to speed adjusting performance.
Therefore, develop a kind of fluid viscidity timing clutch with good speed stability and speed adjusting performance in the urgent need to those skilled in the art, meet the needs of special vehicle engine fan speed-regulating under different operating mode.
Summary of the invention
The object of the invention is: the performance improving special vehicle fan fluid viscidity timing clutch, improve fluid viscidity timing clutch friction pair, control the design such as oil cylinder and piston, make the fluid viscidity timing clutch of special vehicle fan meet power transimission, stepless speed regulation, heat radiation all even be convenient to control condition under, can ensure that it has good speed stability and speed adjusting performance.
Technological scheme of the present invention is: the special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable, and it comprises: clutch outer hub, external tooth friction plate, internal tooth pairing steel sheet, platen, piston, mounting plate, control oil pipe joint, lubricant pipe joint, supporting disk, output shaft axle sleeve and the output shaft of tape input gear;
Its right end face of output shaft is provided with grease channel in the axial direction, is provided with annular boss in the stage casing of output shaft, and the spline of annular boss is provided with the oilhole communicated with grease channel;
External tooth friction plate and internal tooth pairing steel sheet form friction pair;
The outer hub of clutch of tape input gear is provided with oil outlet;
Output shaft is by left support bearing, right support bearings, and lubricant pipe joint communicates with grease channel, and joint is provided with lubrication end cover; The outer hub of clutch of tape input gear is socketed in the outside of output shaft by the outer hub spring bearing of clutch; Output shaft axle sleeve is provided with in cavity between annular boss in the middle part of the outer hub spring bearing of clutch and output shaft; Annular boss in the middle part of output shaft is socketed with supporting disk, friction pair and platen outward successively, and the external tooth friction plate wherein in friction pair is connected with the outer hub of the clutch of tape input gear by short profile of tooth involute splines; Gap is left between friction pair and platen; The spring guide finger being socketed with return spring is provided with between annular boss in the middle part of platen and output shaft; Mounting plate matches with piston and is socketed in the outside of lubrication end cover, and mounting plate is provided with control oil pipe joint, and is provided with the oily passage of control in it, controls oily passage and communicates with control oil pipe joint and lead to piston; Be radial seal between piston and mounting plate, after control oil pipe joint injects control oil in the oily passage of control, the control oil cylinder between piston and mounting plate is fixed oil cylinder; Axial thrust bearing is provided with between piston and platen.
The invention has the beneficial effects as follows: (1) the present invention makes control oil cylinder and piston become fixed oil cylinder and fixed piston by the design adding axial thrust bearing between piston and friction plate platen, eliminate the impact controlling oil cylinder centrifugal force, consider from power transimission angle, the design of fixed oil cylinder and fixed piston can be good at reducing power loss unnecessary in fluid viscidity timing clutch power transimission process, realizes the high power density of fan transmission.
(2) the present invention is under the prerequisite meeting fluid viscidity timing clutch loading demands, adopts small oil tank design, improves unit and controls oil mass moves axially control sensitivity to piston, widened the speed adjustable range of fluid viscidity timing clutch simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the external tooth friction plate being provided with bicircular arcs oil groove in the present invention;
Wherein, the outer hub of clutch of 1-tape input gear, 2-external tooth friction plate, 3-pairing steel sheet, 4-platen, 5-piston, 6-mounting plate, 7-controls oil cylinder, 8-control oil pipe joint, 9-displacement transducer, 10-lubrication end cover, 11-lubricant pipe joint, 12-right support bearing, 13-axial thrust bearing, 14-return spring, 15-spring guide finger, 16-supporting disk, 17-output shaft axle sleeve, the outer hub spring bearing of 18-left clutch, the left output shaft spring bearing of 19-, 20-output shaft.
Embodiment
See accompanying drawing 1, the special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable, it comprises: hub 1, external tooth friction plate 2, internal tooth pairing steel sheet 3, platen 4, piston 5, mounting plate 6, control oil pipe joint 8, lubricant pipe joint 11, supporting disk 16, output shaft axle sleeve 17 and output shaft 20 outside the clutch of tape input gear;
Its right end face of output shaft 20 is provided with grease channel in the axial direction, is provided with annular boss in the stage casing of output shaft 20, and the spline of annular boss is provided with the oilhole communicated with grease channel;
External tooth friction plate 2 and internal tooth pairing steel sheet 3 form friction pair;
The outer hub 1 of clutch of tape input gear is provided with oil outlet;
Output shaft 20 is supported by left support bearing 19, right support bearing 12, and lubricant pipe joint 11 communicates with grease channel, and joint is provided with lubrication end cover 10; The outer hub 1 of clutch of tape input gear is socketed in the outside of output shaft 20 by the outer hub spring bearing 18 of clutch; Output shaft axle sleeve 17 is provided with in cavity between annular boss in the middle part of the outer hub spring bearing 18 of clutch and output shaft 20; Annular boss in the middle part of output shaft 20 is socketed with supporting disk 16, friction pair and platen 4 outward successively, and the external tooth friction plate 2 wherein in friction pair is connected with the outer hub 1 of the clutch of tape input gear by short profile of tooth involute splines; Gap is left between friction pair and platen 4; The spring guide finger 15 being socketed with return spring 14 is provided with between annular boss in the middle part of platen 4 and output shaft 20; Mounting plate 6 matches with piston 5 and is socketed in the outside of lubrication end cover 10, and mounting plate 6 is provided with control oil pipe joint 8, and is provided with the oily passage of control in it, controls oily passage and communicates with control oil pipe joint 8 and lead to piston 5; Be radial seal between piston 5 and mounting plate 6, after control oil pipe joint 8 injects control oil in the oily passage of control, the control oil cylinder 7 between piston 5 and mounting plate 6 is fixed oil cylinder; Axial thrust bearing 13 is provided with between piston 5 and platen.
Working principle of the present invention is: the power of fluid viscidity timing clutch is inputted by the outer hub 1 of the clutch of tape input gear, transmission of power working oil is by output shaft 20 axle head fuel feeding, control oil and enter control channel by oil duct on mounting plate 6, formation control oil cylinder 7, promote piston 5 to move axially, change friction pair gap, output rotating speed regulation, be uniformly distributed by circumference after working oil is entered by output shaft 20 axle head, the oilhole engaging friction of axially not isometrical distribution is secondary, oil film bearing capacity and lubrication are provided.The control oil oil pressure controlling oil cylinder 7 is regulated by electricity liquid ratio relief valve.Power shears fluid by active friction plate, and fluid shearing force drives driven friction output shaft rotating speed is changed thus reaches the object of output rotating speed regulation.
Preferably, the substrate of external tooth friction plate 2 is provided with friction material layer, friction material layer adopts carbon fiber paper base frication material; The static friction coefficient of carbon fiber paper base frication material is large and the difference of static and dynamic friction coefficient is little, so it has than the better stability of copper based powder metallurgy friction material, can widen the speed adjustable range of fluid viscidity timing clutch, improve its speed adjusting performance;
See accompanying drawing 2, preferably, external tooth friction plate 2 is provided with bicircular arcs oil groove, accounts for the ratio of areal of friction facing with the oil groove area increasing friction plate 2, be conducive to working oil and form oil film, thus widen the scope that fluid viscidity timing clutch friction pair is in the liquid friction stage;
By changing the size of supporting disk 16, number of friction pairs can be regulated; When special vehicle load increases, only need can increase fluid viscidity timing clutch number of friction pairs by selecting undersized supporting disk, meeting the needs of heavy load operating mode, thus enabling fluid viscidity timing clutch adapt to the change of applying working condition widely;
Preferably, piston 5 is designed with displacement transducer 9, and the displacement moved axially by displacement sensor 9 pairs of pistons is monitored, and reaches Real-Time Monitoring and the quantitative object changing oil slick thickness between friction pair;
Preferably, saving design is adopted to the oil outlet on the outer hub 1 of the clutch of tape input gear, namely the oil outlet of the outer hub 1 of the clutch of tape input gear is arranged between its external gear and internal spline, such increase friction pair outlet oil pressure power, be conducive to the formation of oil film between friction pair, improve the stability of fluid viscidity timing clutch bearing capacity and output speed.
Claims (5)
1. the special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable, it is characterized in that, it comprises: hub (1), external tooth friction plate (2), internal tooth pairing steel sheet (3), platen (4), piston (5), mounting plate (6), control oil pipe joint (8), lubricant pipe joint (11), supporting disk (16), output shaft axle sleeve (17) and output shaft (20) outside the clutch of tape input gear;
Its right end face of described output shaft (20) is provided with grease channel in the axial direction, is provided with annular boss in the stage casing of described output shaft (20), and the spline of described annular boss is provided with the oilhole communicated with described grease channel;
Described external tooth friction plate (2) and internal tooth pairing steel sheet (3) form friction pair;
The outer hub (1) of clutch of described tape input gear is provided with oil outlet;
Described output shaft (20) is supported by left support bearing (19), right support bearing (12), and described lubricant pipe joint (11) communicates with described grease channel, and joint is provided with lubrication end cover (10); The outer hub (1) of clutch of described tape input gear is socketed in the outside of described output shaft (20) by the outer hub spring bearing (18) of clutch; Described output shaft axle sleeve (17) is provided with in cavity between the outer hub spring bearing (18) of described clutch and the annular boss at described output shaft (20) middle part; Be socketed with described supporting disk (16), described friction pair and described platen (4) outward successively at the annular boss at described output shaft (20) middle part, the external tooth friction plate (2) in wherein said friction pair is connected with the outer hub (1) of the clutch of described tape input gear by short profile of tooth involute splines; Gap is left between described friction pair and described platen (4); The spring guide finger (15) being socketed with return spring (14) is provided with between the annular boss at described platen (4) and described output shaft (20) middle part; Described mounting plate (6) matches with described piston (5) and is socketed in the outside of described lubrication end cover (10), described mounting plate (6) is provided with described control oil pipe joint (8), and in it, being provided with the oily passage of control, described control oil passage communicates with described control oil pipe joint (8) and leads to described piston (5); Be radial seal between described piston (5) and described mounting plate (6), when control oil pipe joint (8) injects after control oil in the oily passage of described control, the control oil cylinder (7) between described piston (5) and mounting plate (6) is fixed oil cylinder; Axial thrust bearing (13) is provided with between described piston (5) and described platen.
2. the special vehicle fan fluid viscidity timing clutch that stabilization of speed as claimed in claim 1 is adjustable, is characterized in that, with friction material layer on the substrate of described external tooth friction plate (2), described friction material layer adopts carbon fiber paper base frication material.
3. the special vehicle fan fluid viscidity timing clutch that stabilization of speed as claimed in claim 1 or 2 is adjustable, is characterized in that, with bicircular arcs oil groove on described external tooth friction plate (2).
4. the special vehicle fan fluid viscidity timing clutch that stabilization of speed as claimed in claim 1 or 2 is adjustable, it is characterized in that, described piston (5) is designed with displacement transducer (9).
5. the special vehicle fan fluid viscidity timing clutch that stabilization of speed as claimed in claim 1 or 2 is adjustable, is characterized in that, the oil outlet of the outer hub (1) of clutch of described tape input gear is arranged between its external gear and internal spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723522.XA CN103697084B (en) | 2013-12-24 | 2013-12-24 | The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310723522.XA CN103697084B (en) | 2013-12-24 | 2013-12-24 | The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable |
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| Publication Number | Publication Date |
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| CN103697084A CN103697084A (en) | 2014-04-02 |
| CN103697084B true CN103697084B (en) | 2016-01-20 |
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| CN201310723522.XA Expired - Fee Related CN103697084B (en) | 2013-12-24 | 2013-12-24 | The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973542A (en) * | 2019-03-27 | 2019-07-05 | 中南大学 | Variable-speed clutch |
Families Citing this family (3)
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|---|---|---|---|---|
| CN104265583A (en) * | 2014-09-15 | 2015-01-07 | 上海电力学院 | Speed changing system for wind power heating device |
| CN107781319A (en) * | 2016-08-30 | 2018-03-09 | 力博重工科技股份有限公司 | The high-power liquid of novel high speed glues clutch |
| CN114810855B (en) * | 2022-04-21 | 2023-12-12 | 中国北方车辆研究所 | From liquid viscous clutch who takes hydraulic power cutting device |
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| US4583625A (en) * | 1983-09-28 | 1986-04-22 | Aisin Seiki Kabushiki Kaisha | Temperature responsive fluid coupling device |
| JPH0893793A (en) * | 1994-09-21 | 1996-04-09 | Nissan Motor Co Ltd | Multiple disk friction clutch structure |
| JP2005076525A (en) * | 2003-08-29 | 2005-03-24 | Shin Caterpillar Mitsubishi Ltd | Fan rotation speed control method |
| CN102207099A (en) * | 2011-02-28 | 2011-10-05 | 中国北方车辆研究所 | Radial compact vehicle fan speed regulation device |
| CN202048122U (en) * | 2011-04-25 | 2011-11-23 | 山东中川重工股份有限公司 | Liquid viscosity speed regulation clutch |
| CN102828981A (en) * | 2012-09-17 | 2012-12-19 | 北京理工大学 | High-speed large-power fan speed regulation device for special vehicles |
| CN102913563A (en) * | 2012-10-15 | 2013-02-06 | 浙江大学 | Hydro-viscous speed regulation clutch |
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2013
- 2013-12-24 CN CN201310723522.XA patent/CN103697084B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583625A (en) * | 1983-09-28 | 1986-04-22 | Aisin Seiki Kabushiki Kaisha | Temperature responsive fluid coupling device |
| JPH0893793A (en) * | 1994-09-21 | 1996-04-09 | Nissan Motor Co Ltd | Multiple disk friction clutch structure |
| JP2005076525A (en) * | 2003-08-29 | 2005-03-24 | Shin Caterpillar Mitsubishi Ltd | Fan rotation speed control method |
| CN102207099A (en) * | 2011-02-28 | 2011-10-05 | 中国北方车辆研究所 | Radial compact vehicle fan speed regulation device |
| CN202048122U (en) * | 2011-04-25 | 2011-11-23 | 山东中川重工股份有限公司 | Liquid viscosity speed regulation clutch |
| CN102828981A (en) * | 2012-09-17 | 2012-12-19 | 北京理工大学 | High-speed large-power fan speed regulation device for special vehicles |
| CN102913563A (en) * | 2012-10-15 | 2013-02-06 | 浙江大学 | Hydro-viscous speed regulation clutch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109973542A (en) * | 2019-03-27 | 2019-07-05 | 中南大学 | Variable-speed clutch |
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