CN105864422A - Engaging-disengaging device for use on power take-off - Google Patents
Engaging-disengaging device for use on power take-off Download PDFInfo
- Publication number
- CN105864422A CN105864422A CN201610466878.3A CN201610466878A CN105864422A CN 105864422 A CN105864422 A CN 105864422A CN 201610466878 A CN201610466878 A CN 201610466878A CN 105864422 A CN105864422 A CN 105864422A
- Authority
- CN
- China
- Prior art keywords
- drive sleeve
- driving member
- input shaft
- power input
- power
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H2061/0474—Smoothing ratio shift by smoothing engagement or release of positive clutches; Methods or means for shock free engagement of dog clutches
Abstract
The invention discloses an engaging-disengaging device for use on a power take-off. The engaging-disengaging device is to be disposed in the power take-off so that it is convenient to apply the power take-off to a motorcycle, an electric vehicle or a lathe for force transmission. The engaging-disengaging device comprises a transmission part, the transmission part is peripherally and fixedly disposed on a high-speed driving gear, a transmission sleeve is mounted on a power input shaft in a clearance sleeving manner, and a plurality of friction plates are arranged between the transmission sleeve and the transmission part; an electromagnet is arranged outside the transmission sleeve and used to push the transmission sleeve to press the friction plates and the transmission part tightly together after being powered on, thereby transmitting power sequentially from the power input shaft through the transmission sleeve and the friction plates to the transmission part.
Description
Technical field
The invention belongs to mechanical power transmission field, particularly relate to the arrangement of clutch in a kind of disengaging type PTO.
Background technology
Chinese invention patent application (CN1686755A) discloses a kind of gear speed changer for bicycle and man power tricycle.This variator is that the combination varied in size with change gear completes speed change, so splined shaft and spline gear, splined shaft and spline gear must be had in She Ji to need good fit clearance, it is desirable to standard clearance can move freely under coordinating and is not obstructed.Due to spline gear, the size of splined shaft is less, needs to cut technology with line, can be only achieved preferable effect when manufacturing.PTO is the critical piece in variator, and it is the technology of most critical in design, and this part plays the former speed of car, and the effect of transmission outside various internal force after speed change, the size of this part also directly affects variator overall dimensions, and the relation between them is directly proportional.PTO is unsuitable excessive, and the biggest impact is attractive in appearance and installs, can not size, size torsion is inadequate.This part great advantage is concentric with main shaft, and it i.e. can be with main shaft synchronous axial system, it is also possible to main shaft asynchronous rotary, thus reduce change speed gear box volume, so preferably by original design size when manufacturing, can not arbitrarily change.The shifting fork spring number of turns in variator should be lacked, and elasticity to be got well, and it not only plays gear return effect, but also plays the positioning action of gear.
This PTO structure is complicated, it is impossible to be enough well adapted for the conductance calls to power.
Summary of the invention
For overcoming drawbacks described above, the technical issues that need to address of the present invention: provide the arrangement of clutch on a kind of power take off, this arrangement of clutch can be well adapted for the conductance calls to power, and controllability is good.
For solving described technical problem, technical scheme: the arrangement of clutch on a kind of power take off, for being arranged on the power take off of gear shifting type, power take off includes power input shaft, power input shaft is socketed with high speed driving gear rotationally, it is characterised in that on high speed driving gear, circumference is fixedly provided with driving member, power input shaft is socketed with drive sleeve with gap, between drive sleeve and driving member, is provided with multi-disc friction sheet；It is provided with electric magnet in the outside of drive sleeve, by promoting drive sleeve to make friction plate be pressed together with driving member after being energized at electric magnet, and then makes power ultromotivity power shaft successively be transmitted on driving member through drive sleeve, friction plate.
Magnetic field can be produced after electric magnet energising, promote corresponding actionable component actuation to make friction plate be pressed together and realize power and change road conduction by magnetic field.Whether electric magnet by the way of electrically connecting, can realize the energising of electric magnet with velocity sensor, controller, hand switch.Such as apply in electric motor car, when the gait of march of electric motor car reaches setting value from low speed, or control electric magnet energising by the size of controller for electric vehicle sensory current.And by drive sleeve, friction plate is compressed, it is achieved the switching of power conduction route.Drive sleeve itself can be that band is magnetic, it is also possible to being that electric magnet is internal itself has actionable parts, promotes drive sleeve to make friction plate be pressed together by these actionable parts.Electric magnet can be to be operated with manual switches to realize whether being energized, and user can determine the need for switching transmission mode voluntarily according to practical situation.
The truncation surface of described driving member is Qian shape, and the opening of this driving member is positioned at driving member towards electric magnet, friction plate.It is provided with described driving member, these friction plates can be carried out a restriction effect so that the good operating stability of friction plate.
High speed driving gear is provided with, integrally formed with coupling tunnel, the closed end of driving member, the running-on being socketed on coupling tunnel on the end face of driving member circumferentially fixedly.This facilitate that coupling between driving member with high speed driving gear, it is simple to realize stable transmission.
The wall body of driving member is axially arranged with some slots along it, the one-body molded plug being plugged on a gap in slot in the outer rim of friction plate.Slot and the setting of plug, further ensure the stability of friction plate.
On the outer peripheral face of power input shaft, the position in drive sleeve is provided with some convex bodys, these convex bodys spiral extension in the same direction on the outer peripheral face of power input shaft, is provided with for the groove with convex body matched in clearance in drive sleeve, and groove is consistent with the trend of convex body；Groove and convex body are for making drive sleeve be locked at power input shaft when drive sleeve pressing friction sheet.When drive sleeve is axially promoted by electric magnet, the rotation of power input shaft in addition, and make to coordinate between convex body with groove, and finally make drive sleeve tightly lock together with power input shaft.When reaching stabilized speed, drive sleeve is consistent with the rotating speed of power input shaft, drive sleeve with relative rotating backward will not occur on power input shaft, lock together between drive sleeve and power input shaft, therefore need not for a long time electric magnet is energized, it is possible to effectively reduce energy consumption.And when external resistance is big, or when motor speed is artificially reduced, power input shaft reduces due to rotating speed so that drive sleeve is equivalent to relative power input shaft and makees counteragent, make to unlock between drive sleeve and power input shaft, and realize the switching route conduction of power.
Longitudinal truncation surface of drive sleeve is L-shaped, and friction plate is socketed in drive sleeve.This makes drive sleeve be easy to the crimping to friction plate, and the transmission also being adapted between drive sleeve with following promotion set coordinates.
Between electric magnet and drive sleeve, it is provided with the promotion set being socketed on power input shaft, promotes and overlap on the end face of drive sleeve integrally formed with ring flange.Promoting set as the middle transition part of thrust, facilitate the electric magnet promotion to drive sleeve, and simple in construction, functional reliability is good.
Electric magnet includes coil and is positioned at the columnar iron core of coil radial extension, and the periphery of coil is surrounded by the iron ring of annular, and iron core is provided with the collar extension for promoting set gap grafting towards the interior oral area promoted on set end face.This electromagnet structure is simple, it is possible to the stable delivery of convenient electromagnetic ferrum axial thrust.
Therefore, beneficial effects of the present invention: use electric magnet in this arrangement of clutch, axial thrust can be produced by the energising of electric magnet in carrying out gearshift procedure, and gear shift is realized smoothly, the controllability making PTO is good, corresponding plant equipment can be made well to operate under suitable duty, the job demand of reality can either be met, can effectively save again energy consumption.By arranging multi-disc friction sheet so that power take off friction plate in gearshift procedure is the most compacted, and makes to have between two grades certain transitional function, gear shift is mild, and plant equipment will not be made to have generation obvious gear shift performance in the course of the work.
Accompanying drawing explanation
Fig. 1 is that the longitudinal section view under this arrangement of clutch use state is with reference to figure.
Fig. 2 is the drive mechanism enlarged drawing between electric magnet and high speed driving gear.
Fig. 3 is the enlarged drawing of structure between low speed driven gear and two grades of driving gears.
Detailed description of the invention
Seeing in figure, this arrangement of clutch is applied on the power take off of two-level, and the structure of power take off includes housing 9 and is fixed on the motor 1 outside housing 9, and motor 1 is as the power source of this PTO.Power input shaft 14 on motor 1 extend in housing 9, and in the housing 9 supported, is additionally provided with jackshaft 19 and power output shaft 11 in housing 9, and jackshaft 19 is between power input shaft 14 and power output shaft 11, and they threes are parallel.
On power input shaft 14, circumference is socketed with low-speed active gear 2 regularly, the low speed driven gear 13 engaged with low-speed active gear 2 it is socketed with on jackshaft 19, being provided with bearing 18 between low speed driven gear 13 and jackshaft 19, low speed driven gear 13 can circumferentially rotate on jackshaft 19 relatively.On jackshaft 19, circumference is socketed with two grades of driving gears 12 regularly, and on power output shaft 11, circumference is socketed with the two grades of driven gears 10 engaged with two grades of driving gears 12 regularly.
Being socketed with high speed driving gear 4 on power input shaft 14, high speed driving gear 4 can circumferentially rotate relatively relative to power input shaft 14, is provided with bearing 18 between high speed driving gear 4 and housing 9.On high speed driving gear 4, circumference is fixedly provided with driving member 17, is socketed with drive sleeve 16 with gap, is provided with multi-disc friction sheet 7 between drive sleeve 16 and driving member 17 on power input shaft 14, and these friction plates 7 stack together coaxially.In housing 9, the outside in drive sleeve 16 is provided with electric magnet 6, by promoting drive sleeve 16 to make friction plate 7 be pressed together with driving member 17 after being energized at electric magnet 6, and then high speed motive force ultromotivity power shaft 14 successively is made to be transmitted on driving member 17 through drive sleeve 16, friction plate 7.Driving member 17 is circumferentially fixed with high speed driving gear 4, and the power on driving member 17 can be transmitted on high speed driving gear 4.
Saying of described high speed and low speed, refers to the conduction velocity of power.Referring at a high speed the conduction mode of low moment of torsion at high speed, low speed refers to the conduction mode of low velocity high pulling torque.Why dividing of speed occurs, is owing to the diameter difference of respective gears is determined.Showing in figure, the diameter of low-speed active gear 2 is less than the diameter of high speed driving gear 4, and the diameter of low speed driven gear 13 is greater than the diameter of high speed driven gear 8, it is achieved thereby that the dividing of so-called low speed and high speed.On secondary transmission, the diameter of two grades of driving gears 12 is less than the diameter of two grades of driven gears 10, and the diameter difference of both is relatively big, the transmission mode of an actually low speed between them.
Being provided with single-direction transmission structure 3 between low speed driven gear 13 and two grades of driving gears 12, this single-direction transmission structure 3 is for making the low speed power in low-speed active gear 2 be transmitted to two grades of driving gears 12.When low speed rotation, as startup stage or by external resistance bigger time, check configuration works, and power conducts to low speed driven gear 13 from low-speed active gear 2, and make jackshaft 19 produce slowly run.After starting electric magnet 6, electric magnet 6 makes multi-disc friction sheet 7 be pressed together, friction plate 7 now works, friction plate 7 makes power be transmitted to high speed driven gear 8 from high speed driving gear 4, owing to the diameter of these gears has above-mentioned difference, the power of high speed driving gear 4 transmission can be faster than the power of low-speed active gear 2 transmission, the rotation of jackshaft 19 can be faster than the rotating speed of low speed driven gear 13, low speed driven gear 13 now rotates backward relative to jackshaft 19, check configuration will not work, thus opens high-speed drive pattern.
Single-direction transmission structure 3 includes the ring for fixing 31 being socketed on jackshaft 19 circumferentially fixedly, and ring for fixing 31 is formed with some end teeth on the end face of low speed driven gear 13, and end tooth tilts in the same direction；Between ring for fixing 31 and low speed driven gear 13, it is provided with the fixed disk 32 being socketed on jackshaft 19 circumferentially fixedly, fixed disk 32 is provided with actively some for the movable teeth 33 with end tooth effect.
The truncation surface of driving member 17 is Qian shape, and driving member 17 is hood-like, and driving member 17 is socketed on power input shaft 14 in inversion.The opening of this driving member 17 is positioned at driving member 17 towards electric magnet 6, friction plate 7.The wall body of driving member 17 is axially arranged with some slots 15 along it, the one-body molded plug being plugged on a gap in slot 15 in the outer rim of friction plate 7.
High speed driving gear 4 is provided with, integrally formed with coupling tunnel 5, the closed end of driving member 17, the running-on being socketed on coupling tunnel 5 on the end face of driving member 17 circumferentially fixedly；Coupling tunnel 5 is bearing in housing 9 by bearing 18.
On the outer peripheral face of power input shaft 14, the position in drive sleeve 16 is provided with some convex bodys, these convex bodys spiral extension in the same direction on the outer peripheral face of power input shaft 14, being provided with for the groove with convex body matched in clearance in drive sleeve 16, groove is consistent with the trend of convex body；Groove and convex body are for making drive sleeve 16 be locked at power input shaft 14 when drive sleeve 16 pressing friction sheet 7.
Longitudinal truncation surface of drive sleeve 16 is L-shaped, and friction plate 7 is socketed in drive sleeve 16.Between electric magnet 6 and drive sleeve 16, be provided with the promotion set 64 being socketed on power input shaft 14, promote set 64 towards on the end face of drive sleeve 16 integrally formed with ring flange.When realizing the compression to friction plate 7, the end face of drive sleeve 16 and ring flange realize face laminating.
Electric magnet 6 includes coil 63 and is positioned at the columnar iron core 62 of coil 63 radial extension, and the periphery of coil 63 is surrounded by the iron ring 61 of annular, and iron core 62 is provided with the collar extension for promoting set 64 gap grafting towards the interior oral area promoted on set 64 end faces.
Claims (8)
1. the arrangement of clutch on a power take off, for being arranged on the power take off of gear shifting type, power take off includes power input shaft, power input shaft is socketed with high speed driving gear rotationally, it is characterized in that, on high speed driving gear, circumference is fixedly provided with driving member, is socketed with drive sleeve with gap, is provided with multi-disc friction sheet between drive sleeve and driving member on power input shaft；It is provided with electric magnet in the outside of drive sleeve, by promoting drive sleeve to make friction plate be pressed together with driving member after being energized at electric magnet, and then makes power ultromotivity power shaft successively be transmitted on driving member through drive sleeve, friction plate.
Arrangement of clutch the most according to claim 1, it is characterised in that the truncation surface of described driving member is Qian shape, the opening of this driving member is positioned at driving member towards electric magnet, friction plate.
Arrangement of clutch the most according to claim 2, it is characterised in that high speed driving gear is provided with, integrally formed with coupling tunnel, the closed end of driving member, the running-on being socketed on coupling tunnel on the end face of driving member circumferentially fixedly；Coupling tunnel is bearing in housing by bearing.
Arrangement of clutch the most according to claim 2, it is characterised in that be axially arranged with some slots along it on the wall body of driving member, the one-body molded plug being plugged on a gap in slot in the outer rim of friction plate.
5. according to the arrangement of clutch described in claim 1,2,3 or 4, it is characterized in that, on the outer peripheral face of power input shaft, the position in drive sleeve is provided with some convex bodys, these convex bodys spiral extension in the same direction on the outer peripheral face of power input shaft, being provided with for the groove with convex body matched in clearance in drive sleeve, groove is consistent with the trend of convex body；Groove and convex body are for making drive sleeve be locked at power input shaft when drive sleeve pressing friction sheet.
6. according to the arrangement of clutch described in claim 1,2,3 or 4, it is characterised in that longitudinal truncation surface of drive sleeve is L-shaped, and friction plate is socketed in drive sleeve.
Arrangement of clutch the most according to claim 6, it is characterised in that be provided with the promotion set being socketed on power input shaft between electric magnet and drive sleeve, promotes and overlaps on the end face of drive sleeve integrally formed with ring flange.
Arrangement of clutch the most according to claim 7, it is characterized in that, electric magnet includes coil and is positioned at the columnar iron core of coil radial extension, and the periphery of coil is surrounded by the iron ring of annular, and iron core is provided with the collar extension for promoting set gap grafting towards the interior oral area promoted on set end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466878.3A CN105864422B (en) | 2016-06-24 | 2016-06-24 | Arrangement of clutch on power take off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610466878.3A CN105864422B (en) | 2016-06-24 | 2016-06-24 | Arrangement of clutch on power take off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105864422A true CN105864422A (en) | 2016-08-17 |
| CN105864422B CN105864422B (en) | 2018-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610466878.3A Active CN105864422B (en) | 2016-06-24 | 2016-06-24 | Arrangement of clutch on power take off |
Country Status (1)
| Country | Link |
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| CN (1) | CN105864422B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362774A (en) * | 2000-10-02 | 2002-08-07 | 德昌电机股份有限公司 | Starting motor |
| CN101725675A (en) * | 2009-12-07 | 2010-06-09 | 昆山华恒工程技术中心有限公司 | High and low speed switching device |
| CN101771310A (en) * | 2010-01-29 | 2010-07-07 | 重庆宗申发动机制造有限公司 | Driving motor of electric vehicle |
| CN102097892A (en) * | 2011-01-11 | 2011-06-15 | 秦廷修 | Two-gear electrical control variable speed motor for electric motorcycle |
| CN102937165A (en) * | 2012-11-26 | 2013-02-20 | 无锡京华重工装备制造有限公司 | Gearbox structure |
| CN102943846A (en) * | 2012-11-20 | 2013-02-27 | 合肥工业大学 | Two-gear automatic transmission for electric automobile |
| CN103457406A (en) * | 2013-04-22 | 2013-12-18 | 台州立马电动车科技有限公司 | Driving motor for electric car |
| CN105402272A (en) * | 2015-12-18 | 2016-03-16 | 刘建平 | Electric vehicle, automatic speed change device and automatic clutch of automatic speed change device |
| CN205745257U (en) * | 2016-06-24 | 2016-11-30 | 立马车业集团有限公司 | Arrangement of clutch on power take off |
-
2016
- 2016-06-24 CN CN201610466878.3A patent/CN105864422B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362774A (en) * | 2000-10-02 | 2002-08-07 | 德昌电机股份有限公司 | Starting motor |
| CN101725675A (en) * | 2009-12-07 | 2010-06-09 | 昆山华恒工程技术中心有限公司 | High and low speed switching device |
| CN101771310A (en) * | 2010-01-29 | 2010-07-07 | 重庆宗申发动机制造有限公司 | Driving motor of electric vehicle |
| CN102097892A (en) * | 2011-01-11 | 2011-06-15 | 秦廷修 | Two-gear electrical control variable speed motor for electric motorcycle |
| CN102943846A (en) * | 2012-11-20 | 2013-02-27 | 合肥工业大学 | Two-gear automatic transmission for electric automobile |
| CN102937165A (en) * | 2012-11-26 | 2013-02-20 | 无锡京华重工装备制造有限公司 | Gearbox structure |
| CN103457406A (en) * | 2013-04-22 | 2013-12-18 | 台州立马电动车科技有限公司 | Driving motor for electric car |
| CN105402272A (en) * | 2015-12-18 | 2016-03-16 | 刘建平 | Electric vehicle, automatic speed change device and automatic clutch of automatic speed change device |
| CN205745257U (en) * | 2016-06-24 | 2016-11-30 | 立马车业集团有限公司 | Arrangement of clutch on power take off |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105864422B (en) | 2018-05-11 |
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