CN102207099A - Radial compact vehicle fan speed regulation device - Google Patents
Radial compact vehicle fan speed regulation device Download PDFInfo
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- CN102207099A CN102207099A CN2011100479313A CN201110047931A CN102207099A CN 102207099 A CN102207099 A CN 102207099A CN 2011100479313 A CN2011100479313 A CN 2011100479313A CN 201110047931 A CN201110047931 A CN 201110047931A CN 102207099 A CN102207099 A CN 102207099A
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- speed regulation
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention belongs to the field of transmission speed regulation, and in particular relates to a radial compact vehicle fan speed regulation device. The device comprises an outer hub, a piston, a spring, an oil cylinder, an oil distribution sleeve, a spindle, a bearing, an input gear, and friction pairs consisting of driving friction plates and driven friction plates. The device transmits power through a plurality of friction pairs, and the combination degree of the friction pairs is controlled by an electrohydraulic inverse proportion valve according to an oil temperature or radiator water temperature feedback signal, so that the output rotating speed of a clutch is controlled; and the fan transmission speed regulation device transmits the power to two fans simultaneously and regulates the rotating speed, so the size of transmission space of a vehicle fan is effectively reduced and power density is improved in a one-shaft two-end-output mode.
Description
Technical field
The invention belongs to drive speed regulating device, be specifically related to a kind of radially-compact type fan for vehicle arrangements for speed regulation.
Background technique
At present, special vehicle adopts the fan transmission scheme that guarantees the fan speed-regulating performance on the basis that reduces transmission device height, shortening vehicle length, must reduce original fan drive bulk, the existing fluid coupling that uses can not be subdued size in vehicle commander's direction, and, need two fluid coupling owing to simultaneously two fans are carried out speed governing.Therefore when guaranteeing or improving original fan speed-regulating performance, need search out the littler fan drive of bulk.The sticking clutch of liquid is that a kind of radial dimension is less, and axial dimension also can satisfy the arrangements for speed regulation of spatial arrangement demand within the specific limits.
Application number is that 200920112093.1 Chinese utility model patent discloses a kind of hydro-viscous speed governing clutch, mainly form by clutch outer member, clutch base, principal and subordinate's friction plate, this device is to be working medium with the viscous liquid, according to law of friction in the newton, rely on the viscosity and the oil-shear active force of liquid between master, the driven friction to transmit power, and have a kind of stepless speed-regulating device of clutch function concurrently.This hydro-viscous speed governing clutch employing electro-hydraulic proportional valve is regulated the pilot oil oil pressure and output speed is controlled, it has simple in structure, characteristics such as easy to use, reliable, principal and subordinate's friction plate packet size is little, transmission capacity is big, rotating speed is high, speed adjustable range is wide, adjusting speed accuracy height.Because electro-hydraulic proportional valve that this model utility adopts is the direct proportaion electro-hydraulic proportional valve, therefore cause principal and subordinate's friction plate to skid and overheated defective easily; In addition, the liquid_viscosity regulator apparatus features is by regulating rotating speed and the torque that principal and subordinate's friction plate gap changes transmission.And when did not wait in principal and subordinate's friction plate gap, the parts of lubricating oil hole that principal and subordinate's friction plate is installed shaft part may be blocked, and was difficult to provide enough and balanced lubricant oil, can cause the scaling loss of the overheated and even liquid_viscosity regulator device of principal and subordinate's friction plate at this moment.
Therefore, exigence those skilled in the art develop a kind of radially-compact type liquid_viscosity regulator device that can adapt to the fan for vehicle transmission.
Summary of the invention
In order to overcome the above-mentioned defective of prior art, the objective of the invention is to propose a kind of problem that can solve the reduction of fan for vehicle transmission bulk, realize the radially-compact type fan for vehicle arrangements for speed regulation of fan speed-regulating function.
The present invention is achieved through the following technical solutions:
A kind of radially-compact type fan for vehicle arrangements for speed regulation, comprise outer hub, piston, spring, oil cylinder, join oil jacket, main shaft, bearing, input gear and by the master, the friction pair that driven friction constitutes, described outer hub is located on the main shaft by bearing housing, described input gear is fixedlyed connected with outer hub, described friction pair outside between hub and the main shaft, described piston sleeve is located on the main shaft, it is characterized in that: described active friction plate links to each other with outer hub is inner, described driven friction links to each other with main shaft, the master of described friction pair, be filled with viscosity fluid between the driven friction, be connected with spring on the described piston side relative with friction pair, described piston by oil cylinder with join the valve group that oil jacket and is used to regulate the pilot oil oil pressure and link to each other, described valve group comprises reduction valve and inverse proportion electro-hydraulic proportional valve.
Wherein, this fan speed adjusting device adopts " T " font power transfer mode, and promptly power is by input gear or the input of outer hub, is two fan transferring power simultaneously after exporting from the two ends of main shaft and regulates rotating speed.
Wherein, described driven friction links to each other with the spline of main shaft, and described main shaft inside is provided with the oil channel hole that passes through for pilot oil, and the spline of described main shaft is provided with the arc groove that is used to enlarge the oil channel hole aperture, the corresponding setting with each oil channel hole of described arc groove.
Wherein, the not isometrical project organization of external tooth friction plate in described active friction plate and driven friction adopt.
Wherein, the not isometrical project organization of external tooth friction plate is in described: the external diameter of the described active friction plate that is connected with outer hub has tooth, the internal diameter of the described driven friction that is connected with the spline of main shaft has tooth, external diameter main, driven friction equates that the internal diameter of active friction plate is greater than the internal diameter of driven friction.
Beneficial effect of the present invention is:
1) the present invention realizes inverse proportion control technique and decompression control technique by the valve group of a reduction valve and an inverse proportion electro-hydraulic proportional valve composition, and motor and transmission system were normally dispelled the heat when both having guaranteed the vehicle outage, prevented the damage of fan drive system overload again;
2) power input mode of the present invention adopts " T " font power transfer mode, and power is exported by the two ends of main shaft by gear or the input of outer hub, can be two fan transferring power simultaneously and regulates rotating speed;
3) the present invention's design on the spline groove bottom footpath of friction pair construction section on the main shaft has arc groove, each arc groove is corresponding with the single oil channel hole of main shaft inside respectively, is used to guarantee that all oil channel holes all can provide sufficient lubricating oil and make the lubricant oil uniform distribution to all main, driven friction;
4) active friction plate of the present invention and driven friction are not isometrical friction plate each other, adopt this not isometrical design to solve the excessive problem of back pressure in master, the driven friction gap change procedure, and can realize quick heat radiating.
Description of drawings
Fig. 1 is the structural representation of fan for vehicle arrangements for speed regulation of the present invention;
Fig. 2 is the A portion enlarged view among Fig. 1, the i.e. structural representation of arc groove;
Fig. 3 is the radial section figure of main spindle multiple spline section;
Fig. 4 is that master, driven friction adopt the not structural representation of isometrical design;
Fig. 5 is that the power of fan for vehicle arrangements for speed regulation of the present invention transmits schematic representation;
Wherein, the outer hub of 1-, the 2-active friction plate, the 3-driven friction, the 4-piston, the 5-spring, the 6-oil cylinder, 7-joins oil jacket, the 8-main shaft, the 9-bearing, 10-imports gear, 11-oil channel hole, 12-arc groove, 13-spline, 14-cylindrical bearing.
Embodiment
Below in conjunction with accompanying drawing radially-compact type fan for vehicle arrangements for speed regulation of the present invention are further described in detail.
As shown in Figure 1, the fan for vehicle arrangements for speed regulation in this example comprise outer hub 1, piston 4, spring 5, oil cylinder 6, join oil jacket 7, main shaft 8, bearing 9, input gear 10 and the friction pair that constitutes by active friction plate 2 and driven friction 3.Outer hub 1 is sheathed on the main shaft 8 by bearing 9, input gear 10 is fixedlyed connected with outer hub 1, friction pair outside between hub 1 and the main shaft 8, active friction plate 2 and outer hub 1 inside link to each other, driven friction 3 is connected on the spline 13 of main shaft, and the spline 13 of main shaft 8 as shown in Figure 3.Piston 4 is sheathed on the main shaft 8, be connected with spring 5 on the piston side relative with friction pair, oil cylinder 6 also is sheathed on the main shaft 8, joining oil jacket is sheathed on the oil cylinder, be filled with viscosity fluid (this example adopt lubricant oil) between the master of friction pair, the driven friction 2,3, and piston by oil cylinder 6, join the reduction valve that oil jacket 7 and is used to regulate the pilot oil oil pressure and link to each other with the inverse proportion electro-hydraulic proportional valve.
The present invention is normally dispelled the heat in order to guarantee vehicle when outage motor and transmission system, adopts the inverse proportion control technique; Simultaneously, damage, adopt the decompression control technique for preventing the fan drive system overload.Both guarantee normal fan speed-regulating function, and can realize safety protection again.The present invention realizes inverse proportion control technique and decompression control technique by the valve group of a reduction valve and an inverse proportion electro-hydraulic proportional valve composition, and reduction valve and inverse proportion electro-hydraulic proportional valve are controlled by controller.
1) the inverse proportion control technique is meant: the maximum of the corresponding arrangements for speed regulation oil cylinder of inverse proportion electro-hydraulic proportional valve minimum current is handled oil pressure, and the minimum of the corresponding arrangements for speed regulation of maximum current is handled oil pressure.And pilot oil influences the combination degree of friction plate, reaches maximum value when handling oil pressure, and the complete combination of friction plate can be transmitted the maximum (top) speed torque; When handling oil pressure is minimum value, and friction plate separates fully, transmits rotational speed and torque and approaches zero.Therefore when vehicle cut off the power supply, electric current be a minimum, leads, the complete all the time combination of driven friction, and there are not speed discrepancy in active friction plate and driven friction, can not skid overheatedly because of friction plate, so bonding state is safest radiating state.If do not realize the inverse proportion control technique by reduction valve and inverse proportion electro-hydraulic proportional valve, the minimum of the corresponding arrangements for speed regulation oil cylinder of minimum current is handled oil pressure so, and exist maximum (top) speed poor between the friction plate this moment, can influence the life-span of arrangements for speed regulation.
2) the decompression control technique is meant: used a reduction valve before the inverse proportion electro-hydraulic proportional valve, be used for limiting the maximum pressure of electro-hydraulic proportional valve.Its effect is when abnormal load appears in the two ends fan, can damage being used for the rigid construction such as gear of transferring power outside the fan speed adjusting device two ends, if the maximum pressure of electro-hydraulic proportional valve is restricted, can at first cause the friction plate of fan speed adjusting device to skid when abnormal load occurring, may cause friction plate to damage, and friction plate is the part of very easy replacing and processing, because fan speed adjusting device allows friction plate to skid, friction plate may not can damage on the other hand.In any case can protect other rigid construction by this method.
This arrangements for speed regulation power is controlled the combination degree of friction pair according to oily temperature or radiator water temperature feedback signal by electric liquid inverse proportion valve by the transmission of many friction pairs, thereby realizes the output speed of solenoidoperated cluthes.Because the fan drive speed regulating device is two fan transferring power simultaneously and regulates rotating speed, therefore adopts " T " font power transfer mode, power transmits schematic representation as shown in Figure 5.
The working principle of these fan for vehicle arrangements for speed regulation is: the power of this fan speed adjusting device is by input gear 10 or 1 input of outer hub, pilot oil and lubricant oil are respectively allocated between oil cylinder 6 and main, the driven friction 2,3 by joining oil jacket 7, pilot oil is in order to realize compressing and unclamping of fastness, a large amount of transient heats that lubricant oil produces when being used for taking away the fastness friction, pilot oil enters oil cylinder 6 by joining oil jacket 7, oil cylinder 7 promotes piston 4, acts on behind piston 4 pressure springs 5 and causes the clutch combination on the fastness; Lubricant oil enters main shaft by joining oil jacket 7, enter the master by oil channel hole in the main shaft 11 and arc groove 12, driven friction 2, between 3, outer hub and active friction plate link, by HYDRAULIC CONTROL SYSTEM fastness gap, active friction plate drives the driven friction rotation, to export two ends to be two fan transferring power simultaneously and regulate rotating speed from main shaft 8 thereby with power, the characteristics of this structure are that maximum radial dimension is less than 160mm, an axis two ends output, this structure has effectively reduced the radial dimension of arrangements for speed regulation, simultaneously can realize speed-regulating function, specific power is got a promotion.
The characteristics of these arrangements for speed regulation are by regulating rotating speed and the torque that the friction plate gap changes transmission, but when friction plate during in different gap, the part oil channel hole 11 of friction pair construction section may be blocked on the main shaft, be difficult to provide enough and balanced lubricant oil, can cause the scaling loss of the overheated and even whole arrangements for speed regulation of main, driven friction 2,3 this moment.Therefore,, driven friction main in order to guarantee all can obtain sufficient cold oil under any gap, design has arc groove 12 on the spline 13 groove bottom footpath of friction pair construction section on the main shaft, as shown in Figure 2, each arc groove is corresponding with the single oil channel hole 11 of main shaft 8 inside respectively, sufficient lubricating oil all can be provided and make the lubricant oil uniform distribution to all main, driven friction 2,3 in order to guarantee all oil channel holes 11.
As shown in Figure 4, active friction plate 2 of the present invention has tooth with the external diameter of the active friction plate 2 that the interior not isometrical project organization of external tooth friction plate of driven friction 3 employings is connected with outer hub 1, the internal diameter of the driven friction 3 that is connected with the spline 13 of main shaft 8 has tooth, external diameter main, driven friction equates that the internal diameter of active friction plate is greater than the internal diameter of driven friction.This structure solves the excessive problem of back pressure in master, the driven friction gap change procedure, and can realize quick heat radiating.
It is abominable that the present invention uses operating mode, operating temperature is above 90 ℃, working speed is greater than 3000, fan speed adjusting device bulk has strict the qualification simultaneously, therefore its radial dimension restriction by friction plate power match and lubrication flow and heat dissipating capacity coupling, can solve the problem of special vehicle fan transmission bulk reduction within the specific limits on the one hand, realize the fan speed-regulating function on the other hand, improve its reliability by the inverse proportion electro-hydraulic proportional valve.
Should be noted that at last: above embodiment is only in order to illustrate that technological scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (5)
1. radially-compact type fan for vehicle arrangements for speed regulation, comprise outer hub (1), piston (4), spring (5), oil cylinder (6), join oil jacket (7), main shaft (8), bearing (9), input gear (10) and by the master, driven friction (2,3) friction pair of Gou Chenging, described outer hub (1) is sheathed on the main shaft (8) by bearing (9), described input gear (10) is fixedlyed connected with outer hub (1), described friction pair is positioned between outer hub (1) and the main shaft (8), described piston (4) is sheathed on the main shaft (8), it is characterized in that: described active friction plate (2) links to each other with outer hub (1) is inner, described driven friction (3) links to each other with main shaft (8), the master of described friction pair, driven friction (2,3) be filled with viscosity fluid between, be connected with spring (5) on the described piston side relative with friction pair, described piston by oil cylinder (6) with join the valve group that oil jacket (7) and is used to regulate the pilot oil oil pressure and link to each other, described valve group comprises reduction valve and inverse proportion electro-hydraulic proportional valve.
2. radially-compact type fan for vehicle arrangements for speed regulation as claimed in claim 1, it is characterized in that: this fan speed adjusting device adopts " T " font power transfer mode, be power by input gear (10) or outer hub (1) input, be two fan transferring power simultaneously after exporting from the two ends of main shaft (8) and regulate rotating speed.
3. radially-compact type fan for vehicle arrangements for speed regulation as claimed in claim 1, it is characterized in that: described driven friction (3) links to each other with the spline (13) of main shaft, described main shaft inside is provided with the oil channel hole (11) that passes through for pilot oil, the spline of described main shaft (13) is provided with the arc groove (12) that is used to enlarge the oil channel hole aperture, described arc groove and the corresponding setting of each oil channel hole (11).
4. radially-compact type fan for vehicle arrangements for speed regulation as claimed in claim 1 is characterized in that: the not isometrical project organization of external tooth friction plate in described active friction plate (2) and driven friction (3) adopt.
5. radially-compact type fan for vehicle arrangements for speed regulation as claimed in claim 4, it is characterized in that: the not isometrical project organization of external tooth friction plate is in described: the external diameter of the described active friction plate (2) that is connected with outer hub (1) has tooth, the internal diameter of the described driven friction (3) that is connected with the spline of main shaft has tooth, external diameter main, driven friction equates that the internal diameter of active friction plate is greater than the internal diameter of driven friction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100479313A CN102207099A (en) | 2011-02-28 | 2011-02-28 | Radial compact vehicle fan speed regulation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100479313A CN102207099A (en) | 2011-02-28 | 2011-02-28 | Radial compact vehicle fan speed regulation device |
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| CN102207099A true CN102207099A (en) | 2011-10-05 |
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| CN2011100479313A Pending CN102207099A (en) | 2011-02-28 | 2011-02-28 | Radial compact vehicle fan speed regulation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103089681A (en) * | 2013-01-30 | 2013-05-08 | 中国北方车辆研究所 | Hydraulic device capable of controlling fan viscosity speed regulation |
| CN103697084A (en) * | 2013-12-24 | 2014-04-02 | 北京理工大学 | Fluid viscosity regulation clutch with stable and adjustable rotary speed for special vehicle fan |
| CN107781318A (en) * | 2016-08-30 | 2018-03-09 | 力博重工科技股份有限公司 | New base type high-speed high-power liquid glues clutch |
| CN110259849A (en) * | 2019-06-20 | 2019-09-20 | 泰州三羊重型机械有限公司 | A kind of hydro-viscous speed governing clutch of coaxial ipsilateral output |
Citations (5)
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| CN2187705Y (en) * | 1992-12-25 | 1995-01-18 | 北京理工大学 | Liquid viscosity speed-regulating clutch |
| JP2000145832A (en) * | 1998-11-13 | 2000-05-26 | Eaton Corp | Power transmission system for vehicle and its controlling method |
| CN201347999Y (en) * | 2009-01-05 | 2009-11-18 | 杭州前进风电齿轮箱有限公司 | Hydro-viscous speed governing clutch |
| CN101709751A (en) * | 2009-09-28 | 2010-05-19 | 中国矿业大学 | Liquid-viscosity loading system |
| CN201671983U (en) * | 2010-05-14 | 2010-12-15 | 湖南省越昌科技有限公司 | Energy-saving high-precision automatic frequency modulation back-pressure type hydroviscous variable speed clutch |
-
2011
- 2011-02-28 CN CN2011100479313A patent/CN102207099A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2187705Y (en) * | 1992-12-25 | 1995-01-18 | 北京理工大学 | Liquid viscosity speed-regulating clutch |
| JP2000145832A (en) * | 1998-11-13 | 2000-05-26 | Eaton Corp | Power transmission system for vehicle and its controlling method |
| CN201347999Y (en) * | 2009-01-05 | 2009-11-18 | 杭州前进风电齿轮箱有限公司 | Hydro-viscous speed governing clutch |
| CN101709751A (en) * | 2009-09-28 | 2010-05-19 | 中国矿业大学 | Liquid-viscosity loading system |
| CN201671983U (en) * | 2010-05-14 | 2010-12-15 | 湖南省越昌科技有限公司 | Energy-saving high-precision automatic frequency modulation back-pressure type hydroviscous variable speed clutch |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102828981B (en) * | 2012-09-17 | 2014-09-10 | 北京理工大学 | High-speed large-power fan speed regulation device for special vehicles |
| CN103089681A (en) * | 2013-01-30 | 2013-05-08 | 中国北方车辆研究所 | Hydraulic device capable of controlling fan viscosity speed regulation |
| CN103697084A (en) * | 2013-12-24 | 2014-04-02 | 北京理工大学 | Fluid viscosity regulation clutch with stable and adjustable rotary speed for special vehicle fan |
| CN103697084B (en) * | 2013-12-24 | 2016-01-20 | 北京理工大学 | The special vehicle fan fluid viscidity timing clutch that stabilization of speed is adjustable |
| CN107781318A (en) * | 2016-08-30 | 2018-03-09 | 力博重工科技股份有限公司 | New base type high-speed high-power liquid glues clutch |
| CN110259849A (en) * | 2019-06-20 | 2019-09-20 | 泰州三羊重型机械有限公司 | A kind of hydro-viscous speed governing clutch of coaxial ipsilateral output |
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Application publication date: 20111005 |