CN202203305U - Centrifugal clutch and electric car gear-shifting drive hub with the same - Google Patents
Centrifugal clutch and electric car gear-shifting drive hub with the same Download PDFInfo
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- CN202203305U CN202203305U CN201120276028XU CN201120276028U CN202203305U CN 202203305 U CN202203305 U CN 202203305U CN 201120276028X U CN201120276028X U CN 201120276028XU CN 201120276028 U CN201120276028 U CN 201120276028U CN 202203305 U CN202203305 U CN 202203305U
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Abstract
The utility model provides a centrifugal clutch and an electric car gear-shifting drive hub with the same, which belong to the technical field of machinery and vehicle. The centrifugal clutch settles a technical problem of low convenience in retreating of the prior-art electric car. The centrifugal clutch comprises the following components: an input member, and an output member with a shaft part which penetrates an axis part of a disc part of the input member. One side of the disc part is provided with the following components: a tooth ring which is fixedly connected with the output member, and a ratchet in the tooth ring. The root part of the ratchet is hinged with a side surface of the disc part. An inner wall of the tooth ring is provided with ratchets. A reset mechanism is provided between the ratchets and the input member. The electric car gear-shifting drive hub comprises a stator, a rotor, a hub body and a central shaft. An input gear shaft and an output gear shaft are sleeved on the central shaft. One end of the input gear shaft is fixedly connected with a rotor. One end of the output gear shaft is connected with the hub body. The other end of the input gear shaft and the other end of the output gear shaft are respectively connected with an overrunning clutch and the centrifugal clutch. The centrifugal clutch has the following advantages: stable transmission, high convenience in use, etc.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of clutch, particularly a kind of centrifugal clutch.
The utility model also belongs to the vehicle technology field, relates to a kind of electric motor car, and particularly a kind of electric motor car with this centrifugal clutch becomes the retaining drive hub.
Background technique
The effect of overrunning clutch is to make certain element rotate locking on another direction by certain direction.Can only the single direction transmission when the drive power source passive device, if when power source turns, (as becoming clockwise counterclockwise), passive device then can break away from automatically and not produce the function that any power transmits.Like free wheel device and centrifugal clutch.
Document about clutch is also more, like the disclosed a kind of centrifugal clutch [application number: 200920022208.8 of Chinese patent document; Open (bulletin) number: CN201507581U], it comes transmitting torque through frictional force, and its basic structure is made up of three elements: driving link, centrifugal body and driven member.Centrifugal body cunning is loaded on the driving link, is quickened and it is radially thrown away by the rotation of prime mover driven driving link.When driving link reached regulation angular velocity, the centrifugal body and the driven member inwall that throw away compressed, and forced it to get into motion state and transmitting torque by frictional force.The driven member of clutch can directly or through mechanisms such as belt pulleys be connected with load.
Though this centrifugal clutch is realized transmission, but exists certain defective: the joint of clutch depends on centrifugal force, therefore can not transmit load greater than rated torque.If driven end overload, clutch skid, so it also has the function of safety clutch.Because centrifugal force is to increase gradually with the increase of rotating speed; So use centrifugal clutch just to be equivalent to load little by little is added on prime mover, thereby can the across-the-line starting work mechanism, and the effect of acquisition smooth starting; If directly drive, can reduce inrush current significantly with motor.Before prime mover did not reach rated speed, centrifugal body will skid with respect to driven member, thereby produced frictional heat, consumed part energy, and the Wear Friction sheet; Therefore centrifugal clutch is inappropriate in the occasion of Fraquent start and uses, and also should not use in the oversize place of starting process.
Electric motor car is exactly the locomotive of electricity consumption masterpiece for driving in brief.
The history of electric motor car wants Zao than our present modal oil-engine driven automobile.The Hungarian inventor of the father of direct current generator, engineer A Niushiyedelike (nyos Jedlik) early than 1828 in laboratory test the running gear that rotates of electromagnetism.American Thomas Davenport (Thomas Davenport) produced the electric motor car that first direct current generator drives in 1834.1837, therefore Thomas obtained first patent of U.S.'s electromechanics trade.The late 19th century to nineteen twenty is a peak of electric motor car development.
Along with the exploitation and the internal-combustion engine technology raising of texas,U.S oil, electric motor car has lost advantage gradually after nineteen twenty.
Nearest ten or twenty year, seriously polluted along with the reducing day by day of petroleum resources, atmosphere environment, people pay close attention to electric motor car again.Each main automobile production producer begins to pay close attention to the future development of electric motor car and begins to inject capital into technological in electric automobiles.Simultaneously, the development of electric bicycle and battery-operated motor cycle is also particularly quick.Electric bicycle and battery-operated motor cycle generally all comprise vehicle body, wheel hub motor and power supply etc.; Wherein wheel hub motor is a driving element.
At present, the used speed change gear of motor mainly contains two kinds, and a kind of is the stepless controller speed change of electronic type, and another kind is the mechanical type gear shift mode.The stepless controller speed change of electronic type can obtain from 0 maximum speed to motor; Good speed change curve is arranged; But the level of torque that it is exported input current size variation direct and motor is consistent, and (when voltage is constant) just the big more electric current of motor load is just big more.The mechanical type gear shift mode can be the step change formula, also can be stepless speed change type.The mechanical type gear shift mode is more topmost to be the output torques that can obtain different sizes, just when input current is constant, through the mechanical type deceleration energy torque is increased, and perhaps torque is reduced during speedup.Single obtains big moment by small gear drive gearwheel, and this structure can only obtain a retaining when not increasing gear changing mechanism in addition, and can't realize many retaining outputs.
For this reason, the applicant had once applied for a kind of power output device of wheel hubs of electric vehicles [application number: 200910305629.6 by name; Publication number: CN101618685A]; This device is arranged on the wheel hub and with the motor that is fixed on the wheel hub and links; It comprises actuation gear and output gear; Motor and actuation gear link and can drive actuation gear and rotate; Be provided with the unidirectional low speed driving mechanism that the unidirectional drive output gear of ability rotates when actuation gear rotates between actuation gear and the output gear; When also being provided with when the actuation gear backward rotation between actuation gear and the output gear, can drive the unidirectional high speed drive that output gear rotates, the transmission direction of unidirectional low speed driving mechanism and unidirectional high speed drive is opposite, and the velocity ratio of unidirectional low speed driving mechanism and output gear is less than the velocity ratio of unidirectional high speed drive and output gear.It has the high, low speed retaining and switches flexibly the transmission efficiency advantages of higher.
Yet owing to be provided with unidirectional low speed driving mechanism and unidirectional high speed drive simultaneously between actuation gear and the output gear, both transmission direction are opposite, therefore when motor is not worked, can't promote electric motor car and retreat.This has brought inconvenience just for actual the use, has particularly increased the difficulty of under the non-travelling state electric motor car being controlled.
In order to explain the technical problem of above-mentioned existence, so the application has proposed the clutch type output mechanism [application number: 201010132353.9 that a kind of electric motor car becomes the retaining drive hub again; Open (bulletin) number: CN101767529A].Promptly be provided with the clutch component that when drive motor is worked, can make output gear drive the wheel hub rotation and when drive motor quits work, output gear is separated with wheel hub between output gear and the wheel hub.
Ring gear, shift fork and shift fork driver that clutch component comprises the flange fluted disc, is connected with wheel hub; The flange fluted disc meshes and endwisely slips with output gear and ring gear respectively and connects, and shift fork driver and shift fork link and can drive the flange fluted disc and move axially and make at least one disengaging in flange fluted disc and output gear and the ring gear.
During work, the flange fluted disc meshes with output gear and ring gear simultaneously, when output gear rotates, just can drive ring gear like this and rotate.Because the limit of ring gear and wheel hub lid is connected, therefore can drives wheel hub and rotate.First one-way driving mechanism and second one-way driving mechanism can make drive motor, and counter-rotating can both drive the equidirectional rotation of output gear no matter just changeing still.Different is that during through first one-way driving mechanism or the second one-way driving mechanism transmission, it is different that electric motor car becomes the gear of retaining drive hub work.Promptly can change gear through the variation of drive motor clockwise and anticlockwise.When drive motor quits work and wheel hub can be retreated, only need output gear to be separated with wheel hub and get final product through clutch component.At this moment, wheel hub can freely rotate, and does not receive the constraint of its internal mechanism.
Though have the electric motor car of this clutch type output mechanism when becoming the retaining drive hub and can realize that drive motor quits work wheel hub can freely rotate, must handle clutch component.Promptly in use need constantly handle clutch component and switch, this still exists inconvenience in actual use.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed the stable centrifugal clutch with compact structure of a kind of transmission.
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed a kind of electric motor car change retaining drive hub that additional manipulation just can make wheel hub freely rotate that need not.
The purpose of the utility model can realize through following technical proposal: a kind of centrifugal clutch is characterized in that it comprises input component with round plate and the output member with axial region; The axial region of described output member is located in the place, round plate axle center of input component; One side of described round plate is provided with gear ring and ratchet, and described ratchet is positioned at gear ring, and described gear ring is fixedly connected with output member; The root of described ratchet is hinged on the side of round plate, has on the gear ring inwall and the corresponding ratchet of pawl structures; Be provided with between ratchet and the input component and make ratchet have the resetting-mechanism that breaks away from the ratchet movement tendency all the time; Ratchet overcomes resetting-mechanism and is meshed with ratchet and can drives gear ring and rotate when input component rotates.
In above-mentioned centrifugal clutch, described resetting-mechanism comprises extension spring, and described extension spring is between ratchet and round plate axis central part, and an end of described extension spring links to each other with ratchet, and the other end links to each other with input component.
In above-mentioned centrifugal clutch, described resetting-mechanism comprises torsion spring, and described torsion spring is positioned at the hinged place of ratchet and round plate, and an end of described torsion spring links to each other with ratchet, and the other end links to each other with input component.
In above-mentioned centrifugal clutch, described resetting-mechanism comprises two blocks of magnet, and two blocks of described magnet are between ratchet and round plate axis central part; A described magnet is fixed on the input component, and the described magnet of another piece is positioned on the ratchet, and an end of an end of a described magnet and the described magnet of another piece relatively and be that heteropole is relative.
In above-mentioned centrifugal clutch, described ratchet comprises that one is the base portion of strip and the tooth portion that is obliquely installed with respect to base portion, and base portion and tooth portion connecting place have along base portion vertically along the counterweight portion of extending.
In above-mentioned centrifugal clutch, the quantity of described ratchet is 2 to 6 and ratchet circumferentially even distribution along the axle center of round plate.
In above-mentioned centrifugal clutch, the quantity of described ratchet is 12 to 36; Described ratchet evenly distributes and an end of a ratchet and the other end of an adjacent ratchet join along the gear ring inwall.
In above-mentioned centrifugal clutch, a side of described round plate also is provided with bracing ring, and described ratchet is between bracing ring and round plate; Described bracing ring is fixed on the input component; The root of described ratchet is equipped with a detent pin, and an end of described detent pin is positioned on the input component, and the other end is positioned on the bracing ring.
In above-mentioned centrifugal clutch, an end face and the bracing ring of described ratchet lean.
In above-mentioned centrifugal clutch, be provided with supporting post between described round plate and the bracing ring, described bracing ring through described supporting post be bolted on the input component.
In above-mentioned centrifugal clutch, be arranged with connecting sleeve on the described output member, be fixedly connected through connecting sleeve between described gear ring and the output member.
In above-mentioned centrifugal clutch, be connected through bearing between the round plate of described input component and the axial region of output member.
In above-mentioned centrifugal clutch, described input component is a gear.
In above-mentioned centrifugal clutch, described output member is a gear.
A kind of electric motor car becomes the retaining drive hub, comprises stator, rotor, has the hub body of cavity and is located in the central shaft that the hub body axle center is located; Be arranged with input gear shaft and output gear shaft on the described central shaft, an end of input gear shaft is connected with rotor mutually, and an end of output gear shaft links to each other with hub body; Be provided with free wheel device and above-mentioned centrifugal clutch between the other end of described input gear shaft and the other end of output gear shaft, described free wheel device links to each other with the other end of output gear shaft with the other end that centrifugal clutch all will be imported gear shaft; And when the input gear shaft rotates along a direction, can drive output gear shaft through free wheel device and rotate, centrifugal clutch is in separated state; Rotate when centrifugal clutch can drive output gear shaft through centrifugal clutch when another direction is rotated, free wheel device is in separated state.
Become in the retaining drive hub in above-mentioned electric motor car, the input component and the output member of described centrifugal clutch are gear; Described input component links to each other through the other end of intermediate gear with the input gear shaft; The tooth portion of output member is meshed with another end tooth portion of output gear shaft.
Compared with prior art, this centrifugal clutch has the following advantages with this electric motor car change retaining drive hub:
1, this centrifugal clutch adopts stratiform structure, has compact structure, advantage reasonable in design.
2, this centrifugal clutch adopts the transmission of ratchet ratchet, therefore has the stable and high advantage of transmission efficiency of transmission.
3, this centrifugal clutch adopts extension spring or torsion spring or magnet that ratchet is separated with ratchet, therefore has the advantage of stable performance.
4, this electric motor car change retaining drive hub has omitted clutch type output mechanism, therefore has advantage of simple structure; Also remove simultaneously the manipulation clutch type output mechanism from, therefore had handiness, improved the advantage of property easy to use.
5, this electric motor car becomes the retaining drive hub and has adopted above-mentioned centrifugal clutch, have reasonable in design, the advantage that operating cost is low.
Description of drawings
Fig. 1 is the perspective view that this electric motor car becomes the retaining drive hub.
Fig. 2 is that this electric motor car becomes the perspective view of removing hub body in the retaining drive hub.
Fig. 3 is that this electric motor car becomes the side-looking structural representation behind the removal hub body in the retaining drive hub.
Fig. 4 is the sectional structure schematic representation of A-A among Fig. 3.
Fig. 5 is the sectional structure schematic representation of B-B among Fig. 3.
Fig. 6 is that this electric motor car becomes the perspective view of removing in the retaining drive hub behind hub body and the gear box casing.
Fig. 7 is the perspective view of this centrifugal clutch.
Fig. 8 is the perspective view at another visual angle of this centrifugal clutch.
Fig. 9 is the perspective view that this centrifugal clutch is removed output member and connecting sleeve.
Figure 10 is the perspective view that this centrifugal clutch is removed output member, connecting sleeve and bracing ring.
Figure 11 is the perspective view of ratchet in this centrifugal clutch.
Among the figure, 1, central shaft; 2, hub body; 3, centrifugal clutch; 31, input component; 32, output member; 33, bracing ring; 34, gear ring; 341, ratchet; 35, connecting sleeve; 36, ratchet; 361, base portion; 362, tooth portion; 363, counterweight portion; 364, slot to make way; 37, detent pin; 38, extension spring; 39, supporting post; 4, free wheel device; 41, input gear; 42, gear shaft; 5, electric machine casing; 6, stator; 7, gear box casing; 8, output gear shaft; 9, rotor; 10, input gear shaft; 11, bearing; 12, intermediate gear; 13, jack shaft; 14, locating stud two; 15, locating stud one.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
To shown in Figure 10, this centrifugal clutch 3 comprises input component 31, output member 32, gear ring 34, ratchet 36 and resetting-mechanism like Fig. 7.
Specifically, input component 31 has round plate, and output member 32 has axial region.Therefore, input component 31 can be positioned at the gear on the circumferential surface or promptly have the flywheel of axial region and round plate for tooth; If input component 31 for gear then tooth be meshed with input device; If input component 31 be flywheel then axial region link to each other with input device.Output member 32 can have the gear of axial region for an axle or.To shown in Figure 9, the scheme that present embodiment provides is that input component 31 is gear with output member 32 like Fig. 7.
The axial region of output member 32 is located in the place, round plate axle center of input component 31; And be connected through bearing 11 between the axial region of the round plate of input component 31 and output member 32; Thus, input component 31 can freely rotate around the axial region of output member 32.
One side of input component 31 round plates is provided with gear ring 34, ratchet 36 and bracing ring 33, ratchet 36 in gear ring 34 and ratchet 36 between round plate and bracing ring 33.
Also be provided with four supporting posts 39 between round plate and the bracing ring 33, bracing ring 33 through supporting post 39 be bolted on the input component 31.
Like Figure 10 and shown in Figure 11, ratchet 36 comprises that one is the base portion 361 of strip and the tooth portion 362 that is obliquely installed with respect to base portion 361, and base portion 361 has along base portion 361 vertically along the counterweight portion 363 of extending with tooth portion 362 connecting places.Counterweight portion 363 is set improves ratchet 36 free-ended weight; Improve ratchet 36 free-ended centrifugal force thus; Can pass through the weight of adjusting counterweight portion 363 simultaneously, realize changing ratchet 36 free-ended centrifugal force sizes, make in the clutch of its adaptation and different model.
Like Figure 10 and shown in Figure 11, the quantity of ratchet 36 is 2 to 6 and ratchet 36 circumferentially even distribution along the axle center of round plate.Shown in figure 10, the quantity that present embodiment only provides ratchet 36 is 2.
The root of ratchet 36 is equipped with a detent pin 37, and an end of detent pin 37 is positioned on the input component 31, and the other end is positioned on the bracing ring 33, and the root of ratchet 36 is hinged on the side of round plate.One end face and the bracing ring 33 of ratchet 36 lean, and have the gap between the other end of ratchet 36 and the side of round plate.Hence one can see that, bracing ring 33 is set has the stability that raising detent pin 37 is positioned, and can improve the stability of ratchet 36 swings; Make ratchet 36 have leading role again, promptly further improve the stability of ratchet 36 swings along the side wobble of bracing ring 33.
Be arranged with connecting sleeve 35 on the output member 32, the axial region drive fit of connecting sleeve 35 and output member 32, gear ring 34 is connected through the outer edge of bolt with connecting sleeve 35 mutually, so gear ring 34 is fixedly connected with output member 32.Also have the gap between one side of gear ring 34 and the side of round plate, this gap is avoided moving interference between input component 31 and the gear ring 34.
Have on gear ring 34 inwalls and the equal ratchet 341 one to one in tooth portion 362 structures of ratchet 36 and position; The quantity of ratchet 341 is 12 to 36; Ratchet 341 evenly distributes and an end of a ratchet 341 and the other end of an adjacent ratchet 341 join along gear ring 34 inwalls.Shown in figure 10, the quantity that present embodiment only provides ratchet 341 is 24.
Resetting-mechanism is to make ratchet 36 have the ratchet of disengaging 341 movement tendencies all the time, and promptly after input component 31 stopped operating, ratchet 36 can automatically break away from ratchet 341 under the effect of resetting-mechanism; Ratchet 36 overcomes resetting-mechanism and is meshed with ratchet 341 and can drives gear ring 34 rotations when input component 31 rotates.Specifically, resetting-mechanism comprises extension spring 38, and extension spring 38 is between ratchet 36 and round plate axis central part.The base portion 361 and tooth portion 362 connecting places of ratchet 36 have a slot to make way 364, are provided with locating stud 1 in the slot to make way 364, and locating stud 1 is fixed on the ratchet 36, and an end hook of extension spring 38 makes an end of extension spring 38 link to each other with ratchet 36 on locating stud 1 thus.Be fixed with locating stud 14 on the input component 31, locating stud 14 be positioned at locating stud 1 and input component 31 axial connecting lines with ratchet 36 base portions 361 the same sides, promptly locating stud 1 is not positioned on the same radial line of input component 31 with locating stud 2 14; This structure has that ratchet 36 is applied pulling force is stable, and has and be convenient to the advantages that ratchet 36 breaks away from the ratchet 341.The other end of extension spring 38 is hooked on the locating stud 2 14, and the other end of extension spring 38 is linked to each other with input component 31.Above-mentioned slot to make way 364 provides the space for extension spring 38 links to each other with ratchet 36, can guarantee that tie point is positioned at the center of ratchet 36 simultaneously.It is more convenient that above-mentioned locating stud 1 and locating stud 2 14 make extension spring 38 and ratchet 36 link to each other with input component 31, connects more stable simultaneously.
According to actual conditions, resetting-mechanism can also adopt following scheme: resetting-mechanism comprises torsion spring, and described torsion spring is positioned at the hinged place of ratchet 36 and round plate, and an end of described torsion spring links to each other with ratchet 36, and the other end links to each other with input component 31; Or resetting-mechanism comprises two blocks of magnet, and two blocks of described magnet are between ratchet 36 and round plate axis central part; A described magnet is fixed on the input component 31, and the described magnet of another piece is positioned on the ratchet 36, and an end of an end of a described magnet and the described magnet of another piece relatively and be that heteropole is relative.
Shown in figure 10, the clockwise direction of setting the plane is the direction that clockwise rotates of input component 31.When input component 31 does not rotate and output member 32 when whether rotating, ratchet 36 all is in separated state with ratchet 341 under the effect of resetting-mechanism.
When input component 31 rotated along the rotation clockwise direction, when input component 31 reached the setting value rotating speed, the tooth portion 362 of ratchet 36 just can embed in the ratchet 341, rotated but input component 31 can not drive gear ring 34.This setting value rotating speed is at 250 rev/mins～750 rev/mins, and according to condition of different, adjustment ratchet 36 overall weight obtain different values.
When input component 31 counterclockwise rotated along rotation, when input component 31 did not reach the setting value rotating speed, ratchet 36 was in separated state with ratchet 341, i.e. input component 31 idle running.When input component 31 reached the setting value rotating speed, the tooth portion 362 of ratchet 36 just can embed in the ratchet 341, ratchet 36 and ratchet 341 engagements, and input component 31 drive gear rings 34 rotate synchronously thus.
To shown in Figure 6, this electric motor car becomes the retaining drive hub and comprises stator 6, rotor 9, hub body 2, central shaft 1, electric machine casing 5, gear box casing 7, free wheel device 40 and above-mentioned centrifugal clutch 3 like Fig. 1.
Specifically, hub body 2 has a cavity, and stator 6, rotor 9, electric machine casing 5, gear box casing 7, free wheel device 40 and above-mentioned parts such as centrifugal clutch 3 all are positioned at cavity.
Be arranged with input gear shaft 10 and output gear shaft 8 on the central shaft 1, an end of input gear shaft 10 is connected with rotor 9 mutually, and an end of output gear shaft 8 links to each other with hub body 2.All link to each other with bearing 11 between input gear shaft 10 and output gear shaft 8 and the central shaft 1, import gear shaft 10 and output gear shaft 8 thus and can rotate around central shaft 1 axle center through axle sleeve.
Free wheel device 40 all is positioned at gear box casing 7 with centrifugal clutch 3.Gear shaft 42 two ends of free wheel device 40 all link to each other with gear box casing 7 through bearing 11, so free wheel device 40 can freely rotate with respect to gear box casing 7.Tooth on the other end of the input gear 41 of free wheel device 40 and input gear shaft 10 is meshed, and gear shaft 42 is meshed with tooth on the output gear shaft 8.The output member 32 of centrifugal clutch 3 is for having the gear of axial region, and the two ends of axial region all link to each other with gear box casing 7 through bearing 11, so centrifugal clutch 3 can freely rotate with respect to gear box casing 7.The tooth portion 362 of output member 32 is meshed with tooth on the output gear shaft 8; Input component 31 is a gear.Be provided with intermediate gear 12 between input component 31 and the input gear shaft 10, intermediate gear 12 links to each other with gear box casing 7 with bearing 11 through jack shaft 13, so intermediate gear 12 can freely rotate with respect to gear box casing 7; The other end and the input component 31 of input gear shaft 10 all are meshed with intermediate gear 12, link to each other through intermediate gear 12 between input component 31 and the other end of importing gear shaft 10 thus.
This electric motor car becomes the retaining drive hub and is applied on electric bicycle or the battery-operated motor cycle; When going when the needs motor driving; Rotor 9 drives input gear shaft 10 along a direction rotation, and the input gear 41 that input gear shaft 10 drives free wheel device 40 rotates with intermediate gear 12, and intermediate gear 12 drive input components 31 rotate; This moment, free wheel device 40 was in jointing state; Centrifugal clutch 3 is in separated state, rotate so input gear shaft 10 drives output gear shaft 8 through free wheel device 40, and then drive hub body 2 rotates around central shaft 1 axle center.
When needs motor driving and speed change are gone; Rotor 9 drives input gear shaft 10 and rotates along another direction, and the input gear 41 that input gear shaft 10 drives free wheel device 40 rotates with intermediate gear 12, and intermediate gear 12 drives input component 31 and rotates; This moment, centrifugal clutch 3 was in jointing state; Free wheel device 40 is in separated state, rotate so input gear shaft 10 drives output gear shaft 8 through centrifugal clutch 3, and then drive hub body 2 rotates around central shaft 1 axle center.
When motor is not worked and need to be promoted that electric motor car advances or when retreating, centrifugal clutch 3 is in separated state all the time, therefore no matter free wheel device 40 is in and separates or the equal enable manual of jointing state promotes electric motor car and advances or retreat.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used central shaft 1 morely; Hub body 2; Centrifugal clutch 3; Input component 31; Output member 32; Bracing ring 33; Gear ring 34; Ratchet 341; Connecting sleeve 35; Ratchet 36; Base portion 361; Tooth portion 362; Counterweight portion 363; Slot to make way 364; Detent pin 37; Extension spring 38; Supporting post 39; Free wheel device 40; Input gear 41; Gear shaft 42; Electric machine casing 5; Stator 6; Gear box casing 7; Output gear shaft 8; Rotor 9; Input gear shaft 10; Bearing 11; Intermediate gear 12; Jack shaft 13; Locating stud 2 14; Locating stud one 15 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (10)
1. a centrifugal clutch is characterized in that, it comprises input component (31) with round plate and the output member (32) with axial region; The axial region of described output member (32) is located in the place, round plate axle center of input component (31); One side of described round plate is provided with gear ring (34) and ratchet (36), and described ratchet (36) is positioned at gear ring (34), and described gear ring (34) is fixedly connected with output member (32); The root of described ratchet (36) is hinged on the side of round plate, has on gear ring (34) inwall and the corresponding ratchet of ratchet (36) structure (341); Being provided with between ratchet (36) and the input component (31) makes ratchet (36) have the resetting-mechanism of disengaging ratchet (341) movement tendency all the time; Ratchet (36) overcomes resetting-mechanism and is meshed with ratchet (341) and can drives gear ring (34) and rotate when input component (31) rotates.
2. centrifugal clutch according to claim 1; It is characterized in that described resetting-mechanism comprises extension spring (38), described extension spring (38) is positioned between ratchet (36) and the round plate axis central part; One end of described extension spring (38) links to each other with ratchet (36), and the other end links to each other with input component (31).
3. centrifugal clutch according to claim 1; It is characterized in that described resetting-mechanism comprises torsion spring, described torsion spring is positioned at the hinged place of ratchet (36) and round plate; One end of described torsion spring links to each other with ratchet (36), and the other end links to each other with input component (31).
4. centrifugal clutch according to claim 1 is characterized in that, described resetting-mechanism comprises two blocks of magnet, and two blocks of described magnet are positioned between ratchet (36) and the round plate axis central part; A described magnet is fixed on the input component (31), and the described magnet of another piece is positioned on the ratchet (36), and an end of an end of a described magnet and the described magnet of another piece relatively and be that heteropole is relative.
5. centrifugal clutch according to claim 1; It is characterized in that; Described ratchet (36) comprises that one is the base portion (361) of strip and the tooth portion (362) that is obliquely installed with respect to base portion (361), and base portion (361) and tooth portion (362) connecting place have along base portion (361) vertically along the counterweight portion (363) of extending.
6. according to any described centrifugal clutch of claim 1～5, it is characterized in that the quantity of described ratchet (36) is 2 to 6 and ratchet (36) circumferentially even distribution along the axle center of round plate.
7. according to any described centrifugal clutch of claim 1～5, it is characterized in that a side of described round plate also is provided with bracing ring (33), described ratchet (36) is positioned between bracing ring (33) and the round plate; Described bracing ring (33) is fixed on the input component (31); The root of described ratchet (36) is equipped with a detent pin (37), and an end of described detent pin (37) is positioned on the input component (31), and the other end is positioned on the bracing ring (33).
8. centrifugal clutch according to claim 7 is characterized in that, an end face of described ratchet (36) and bracing ring (33) lean.
9. the electric motor car with any described centrifugal clutch of above-mentioned claim 1～8 becomes the retaining drive hub, comprises stator (6), rotor (9), has the hub body (2) of cavity and is located in the central shaft (1) that hub body (2) axle center is located; Be arranged with input gear (41) axle and output gear shaft (8), (42) on the described central shaft (1), an end of input gear (41) axle is connected with rotor (9) mutually, and an end of output gear shaft (8), (42) links to each other with hub body (2); Be provided with free wheel device (4) and above-mentioned centrifugal clutch (3) between the other end of the other end of described input gear (41) axle and output gear shaft (8), (42), described free wheel device (4) links to each other with the other end of output gear shaft (8), (42) with the other end that centrifugal clutch (3) all will be imported gear (41) axle; And free wheel device (4) drives output gear shaft (8), rotate (42) when input gear (41) axle can pass through when a direction is rotated, and centrifugal clutch (3) is in separated state; Centrifugal clutch (3) drives output gear shaft (8), rotate (42) when centrifugal clutch (3) can pass through when another direction is rotated, and free wheel device (4) is in separated state.
10. electric motor car according to claim 9 becomes the retaining drive hub, it is characterized in that the input component (31) and the output member (32) of described centrifugal clutch (3) are gear; Described input component (31) links to each other through the other end of intermediate gear (12) with input gear (41) axle; The tooth portion (362) of output member (32) is meshed with another end tooth portion (362) of output gear shaft (8), (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120276028XU CN202203305U (en) | 2011-08-01 | 2011-08-01 | Centrifugal clutch and electric car gear-shifting drive hub with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120276028XU CN202203305U (en) | 2011-08-01 | 2011-08-01 | Centrifugal clutch and electric car gear-shifting drive hub with the same |
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| Publication Number | Publication Date |
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| CN202203305U true CN202203305U (en) | 2012-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120276028XU Withdrawn - After Issue CN202203305U (en) | 2011-08-01 | 2011-08-01 | Centrifugal clutch and electric car gear-shifting drive hub with the same |
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|---|---|
| CN (1) | CN202203305U (en) |
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Assignee: Li Yueyan Assignor: Huayang Mechanical-Electrical Technologies Co., Ltd. Contract record no.: 2013330000123 Denomination of utility model: Centrifugal clutch and electric car gear-shifting drive hub with the same Granted publication date: 20120425 License type: Exclusive License Record date: 20130506 |
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Assignee: Li Yueyan Assignor: Huayang Mechanical-Electrical Technologies Co., Ltd. Contract record no.: 2013330000290 Denomination of utility model: Centrifugal clutch and electric car gear-shifting drive hub with the same Granted publication date: 20120425 License type: Common License Record date: 20130912 |
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