CN206458736U - End cap for clutch assembly - Google Patents

Abstract

The utility model discloses a kind of end cap for clutch assembly, it is arranged at the shell side of clutch assembly, the center of the end cap is provided with the through hole for the output overcoat for housing the clutch assembly, the inside of the end cap is provided with the first mounting groove, and first mounting groove is used to house the bearing between the end cap and output overcoat；The outside of the end cap is provided with the screw hole connected for fixed screw around the through hole.The utility model balance lid, it is adaptable to which the clutch assembly of two kinds of power of electric drive or foot-operated driving is provided for bicycle, the clutch and shell of its energy positioning-clutching assembly, and play a part of waterproof.

Description

End cap for clutch assembly

Technical field

The utility model is related to a kind of clutch assembly, more particularly to a kind of end cap for clutch assembly.

Background technology

China Today society, the trip mode of rural people is universal based on bicycle, and Urban Traffic mode is main with private Family's car or public transport, but as congestion in road problem is increasingly severe, many people start steering bicycle in city Trip mode, and bicycle leisure trip mode also generally by it is vast it is young like, therefore, bicycle is current Still occupation rate is still very high.And in order that trip more comfort and convenient is quick, bicycle is modified into electric bicycle has turned into A kind of trend.

Electric bicycle refers to using battery as supplementary energy on the basis of ordinary bicycle, is mounted with motor, control The Personal Transporter of the electromechanical integration of the control members such as device processed, battery, handle brake lever and display instrument system.It is existing Although electric bicycle can realize electronic or foot-driven mode, the part such as its increased motor of institute is simple Ground is installed on bicycle so that the structure of bicycle becomes more sophisticated, and volume is bigger, not only unsightly but also has been unfavorable for using.

Utility model content

The purpose of this utility model is to provide a kind of for providing electric drive or foot-operated driving two kinds of power for bicycle Clutch assembly end cap, its can positioning-clutching assembly clutch and shell, and play a part of waterproof.

To achieve these goals, the end cap for clutch assembly that the utility model is provided is arranged at the outer of clutch assembly Shell side, the center of the end cap is provided with the through hole for the output overcoat for housing the clutch assembly, and the inside of the end cap is provided with First mounting groove, first mounting groove is used to house the bearing between the end cap and output overcoat；The outside of the end cap The screw hole connected for fixed screw is provided with around the through hole.

It is preferred that the inside of the end cap is provided with the second mounting groove, second mounting groove is used to house drive disk.

It is preferred that the edge of the inner side of the end cap is provided with step mating surface, the step mating surface and the shell Housing coordinates, and the screw hole is arranged at the outside relative with the step mating surface.

It is preferred that being additionally provided with the working face of mounting torque sensor on the end cap.

The utility model is used for the clutch and shell of the end cap energy positioning-clutching assembly of clutch assembly, and can prevent water Part enters enclosure, plays a part of certain waterproof.

Brief description of the drawings

Fig. 1 is the sectional structure chart that the utility model co-axial middle-set motor drives clutch assembly.

Fig. 2 is the structure chart of the main shaft of the utility model co-axial middle-set motor driving clutch assembly.

Fig. 3 is the structure chart in the balance outer side of lid face of the utility model co-axial middle-set motor driving clutch assembly.

Fig. 4 is the balance lid sectional view that the utility model co-axial middle-set motor drives clutch assembly.

Fig. 5 is the structure chart of the right end cap lateral surface of the utility model co-axial middle-set motor driving clutch assembly.

Fig. 6 is the right end cap sectional view that the utility model co-axial middle-set motor drives clutch assembly.

Fig. 7 is the structure chart of the drive disk of the utility model co-axial middle-set motor driving clutch assembly.

Fig. 8 is the exploded view of the drive disk of the utility model co-axial middle-set motor driving clutch assembly.

Embodiment

To describe the technology contents of the present invention, construction feature, the effect realized in detail, below in conjunction with embodiment and match somebody with somebody Accompanying drawing is closed to be explained in detail.

Referring to Fig. 1, co-axial middle-set motor driving clutch assembly 100 of the present invention is applied on electric bicycle, it is voluntarily Car, which is carried, to be helped electrical drive power and steps on while providing and step on power-assisted, it include shell 1 and main shaft 2 in the setting shell 1, motor 3, Drive disk 4 and clutch 5, the clutch 5 include output overcoat 51 and are coaxially disposed within the output overcoat 51 First forward forward lock-up clutch 53 of lock-up clutch 52 and second, described first forward lock-up clutch 52 and second is forward Lock-up clutch 53 is, to the locking of main shaft 2, main shaft 2 to be discharged when main shaft 2 is rotated backward when a kind of main shaft 2 is forward rotated Clutch；The output end of the motor 3 is connected with the input of the drive disk 4, and the drive disk 4 and the main shaft 2 are coaxial Ground be socketed, the output end of the drive disk 4 with described first forward lock-up clutch 52 be connected, the main shaft 2 and described second Forward lock-up clutch 53 is connected, the output overcoat 51 connection driving wheel 200.Specifically, it is as follows：

Referring to Fig. 2, the outer wall of the main shaft 2 extends outward isolation strip 21, the left side of the isolation strip 21 is provided with use In the left mounting surface 22 for the stator 31 for installing the motor 3, the right side of the isolation strip 21, which is provided with, to be used to install the motor 3 The right mounting surface 23 of rotor 32 and drive disk 4.The isolation strip 21 can isolate the stator 31 and rotor 32, and can be right The stator 31, rotor 32 and drive disk 4 play a part of axially position.It is additionally provided with to simulate with power-assisted on the main shaft 2 and passes The spline 24 that sensor coordinates, the power-assisted analog sensor is electrically connected with the control system on electric bicycle, described to detect The rotation of main shaft 2, and by the rotating speed and power output of control system controlled motor, the spline 24 is located at the left mounting surface 22 left side.Central shaft of the spline 24 along the main shaft 2 is circumferentially uniformly distributed；Can by circumferential be uniformly distributed of the spline 24 With main shaft 2 described in active balance, the main shaft 2 is set to rotate more stable.It is additionally provided with the main shaft 2 described for being installed and connected in The square heart axle mounting surface 25 of second manpower driving side heart axle forward between lock-up clutch 53 and the main shaft 2；The manpower The inner ring of driving side's heart axle is regularly placed on outside the main shaft 2 by side's heart axle mounting surface 25, and inner ring is placed on described second Forward in lock-up clutch 53, the second forward manpower driving described in the locking of lock-up clutch 53 described in when the main shaft 2 is rotated forward Square heart axle, described in when the main shaft 2 is inverted second forward lock-up clutch 53 discharge the manpower driving side heart axle.The side Heart axle mounting surface 25 can be circumferentially positioned to manpower driving side heart axle progress, so that installing simpler convenience.It is described The side wall at the two ends of main shaft 2 is respectively provided with the crank mounting surface 26 for installing crank 300.The crank mounting surface 26 can be with The crank 300 is carried out it is circumferentially positioned so that installing simpler convenience；The crank 300 connects the foot-operated of bicycle. The end face at the two ends of the main shaft 2 is respectively equipped with screw hole 27, and the screw hole 27 is with screw connection with fixed crank 300.Institute State and waterproof grommet 28 is provided between screw and the crank 300, the waterproof grommet 28 can be pressed on institute by the screw State between crank 300, prevent moisture content from entering the inside of clutch assembly.

Fig. 3 and Fig. 4 is referred to, the co-axial middle-set motor driving clutch assembly 100 also includes balance lid 6, the balance Lid 6 is located at the outside of the output overcoat 51, and the center of the balance lid 6 is provided with the through hole 61 passed through for the main shaft 2, described Installed between balance lid 6 and the main shaft 2 by clutch shaft bearing 101, the balance lid 6 is distinguished around the surrounding of the through hole 61 Provided with the fastening screw hole 62 that the output overcoat 51 is passed through and connected for fastening screw.Set the balance lid 6 both can be right Blocked in the outside of the clutch 5, it is to avoid moisture content enters in clutch 5, and manually driven concentricity can be balanced again, and then Balancing electric power and manually driven stability.The balance lid 6 is respectively equipped with for dismounting screw around the surrounding of the through hole 61 Pass through and support the dismounting screw hole 63 of the output overcoat 51.The dismounting screw hole 63 and dismounting screw are set, work as needs When dismantling the balance lid 6, it is only necessary to turn the dismounting screw, make to export overcoat 51 described in its pushing tow, so as to so that institute State balance lid 6 to be separated from each other with the output overcoat 51, reach the purpose of fast quick-detach, make installation and convenient disassembly.It is described flat The outside of weighing apparatus lid 6 is in boss structure 64, and the boss structure 64 is used to coordinate crank 300, and the inner side of the balance lid 6 is in corresponding Sink structures 65, the sink structures 65 be used for coordinate it is described output overcoat 51.

Fig. 5 and Fig. 6 is referred to, the shell 1 has right end cap 11, and the center of the right end cap 11 is provided with accommodating described defeated Go out the through hole 11d of overcoat 51, installed between the right end cap 11 and the output overcoat 51 by second bearing 102, the right side The inside of end cap 11 is provided with the first mounting groove, and first mounting groove is used to house the second bearing 102；The right end cap 11 Outside the screw hole 11a connected for fixed screw is provided with around the through hole 11d.The inner side of the right end cap 11 Edge is provided with step mating surface 11b, and the step mating surface 11b and the shell 1 housing 12 coordinate, the screw hole 11a It is arranged at the outside of the right end cap 11 relative with the step mating surface 11b.The inside of the right end cap 11 is provided with second Mounting groove 11c, the second mounting groove 11c is the step troughs of annular, planet carrier 42 and electric power for housing the drive disk 4 Drive disk 43.The working face (not shown) of mounting torque sensor is additionally provided with the right end cap 11.

Refer to Fig. 7 and Fig. 8, the drive disk 4 includes central gear 41, planet carrier 42, driven by power disk 43 and multiple Planetary gear 44, the quantity of planetary gear 44 of the present invention is three, and the planet carrier 42 is fixed in the shell 1, it is described too Sun wheel is coaxially disposed with the planet carrier 42, and the central gear 41 is connected with the output end of the motor 3, the sun tooth Wheel 41 is placed on outside the main shaft 2 but is not connected with the main shaft 2, and the planetary gear 44 is articulated in the driven by power disk 43 On, each described planetary gear 44 is engaged with the planet carrier 42 and central gear 41 respectively, and the driven by power disk 43 has Hollow output shaft 43a, the hollow output shaft 43a have drive surface and oil groove, and the hollow output shaft 43a and described first is suitable Connected to lock-up clutch 52 so that the drive surface of the hollow output shaft 43a with first forward lock-up clutch 52 be connected；Institute Lubricating oil can be accommodated by stating oil groove, it is ensured that the hollow output shaft 43a with described first forward lock-up clutch 52 when loosening Can occur relative slip.By the way that the output end of motor 3 is connected with central gear 41, the moment of torsion of the central gear 41 leads to again Cross planetary gear 44 to pass on the driven by power disk 43, because the planetary gear 44 arrives the center of the driven by power disk 43 The distance of axle is more than the radius of the output end of the motor, i.e. the output arm of force of drive disk is expert on the center of circle of star gear, therefore, Drive the driven by power disk 43 to increase the output torque of the drive disk 4 by the planetary gear 44, make clutch total Driving force into output is bigger.The hollow output shaft 43a of the driven by power disk 43 offers axis hole 43b, the axle vertically Hole 43b is socketed the main shaft 2 but not fixed with the main shaft 2, and the main shaft 2 remains to rotate relative to the axis hole 43b, so Just the drive disk 4 can be enable to realize with the main shaft 2 to be coaxially disposed.

Again referring to Fig. 1, the motor 3 includes stator 31 and rotor 32, the stator 31 is coil windings, the rotor 32 be magnet module, and the left end cap 13 that the stator 31 is placed on the main shaft 2 and extended internally with the shell 1 is fixed, institute State between left end cap 13 and the main shaft 2 and to be installed by 3rd bearing 103, the rotor 32 passes through two 104 sets of fourth bearings In on the main shaft 2, the rotor 32 is coaxially fixedly connected with the central gear 41.

Summary, the operation principle for driving clutch assembly 100 to co-axial middle-set motor of the present invention below is retouched in detail State, it is as follows：

When being driven using motor 3, by being powered to the coil windings, and then make the stator 31 and the rotor 32 Between produce torque, so as to drive rotor 32 to rotate, the rotor 32 drives the central gear 41 to rotate, the central gear 41 drive three planetary gears 44 simultaneously, the rotation of planetary gear 44 and are revolved round the sun around the central gear 41.Institute State when planetary gear 44 revolves round the sun and drive the rotation of driven by power disk 43, the driven by power disk 43 is rotated forward, at this moment described first The forward hollow output shaft 43a of driven by power disk 43 described in the locking of lock-up clutch 52, so that described first forward locks clutch Forward lock-up clutch 53 and the output overcoat 51 are rotated forward device 52, second with the driven by power disk 43, the output The drive driving wheel 200 of overcoat 51 rotates and realized the output of power；And due to now described second forward lock-up clutch 53 with The main shaft 2 is in relative reversion, now described second forward lock-up clutch 53 be the release main shaft 2, it is therefore, described Main shaft 2 is not rotated, and the co-axial middle-set motor drives clutch assembly 100 by electronic output power.

When using foot-operated driving, rotated by foot-operated driving crank 300, the crank 300 is driving the main shaft 2 just Turn, at this moment, the described second forward 53 pairs of lock-up clutch locking of main shaft 2 so that described second forward lock-up clutch 53, First forward lock-up clutch 52 and output overcoat 51 are with 2 turns of the main shaft, and the output overcoat 51 drives driving wheel 200 rotate and realize the output of power；And due to now the described first forward lock-up clutch 52 and driven by power disk 43 Hollow output shaft 43a be in relative reversion, now described second forward lock-up clutch 53 be the release driven by power disk 43 hollow output shaft 43a's, therefore, the hollow output shaft 43a of the driven by power disk 43 is not rotated, the co-axial middle-set electricity Machine driving clutch assembly 100 is by foot-operated output power.

Co-axial middle-set motor driving clutch assembly 100 of the present invention can use one of which power drive merely, Can simultaneously by electronic or foot-operated driving, while during driving the operation principle of each part with it is above-mentioned essentially identical, still, drive simultaneously When dynamic, the power-assisted analog sensor can detect the torque of main shaft 2, and the rotating speed by control system controlled motor 3 and output Power, makes the torque of main shaft 2 and the output torque of motor 3 proportional, to reach torque multiplication effect, using very convenient.

Compared with prior art, because the present invention in the overcoat by being coaxially disposed the first forward lock-up clutch 52 and second forward lock-up clutch 53, make the main shaft 2 with described second forward lock-up clutch 53 be connected, make again described The output end of motor 3 by the drive disk 4 with described first forward lock-up clutch 52 be connected so that the drive disk 4 Coaxially it is socketed with the main shaft 2, therefore, whole clutch assembly forms the structure of motor 3 and the co-axial middle-set of main shaft 2, effectively The structure of clutch assembly is simplified, and then considerably reduces the volume of clutch assembly；Also, forward locked due to being used in two Determine clutch, forward lock-up clutch can realize the transmission of power to one of rotation direction locking of main shaft 2, and to another Individual rotation direction then discharges, therefore, be used alone motor 3 drive and any mode of foot-driven to another way not Influence is produced, can also be moved simultaneously using two kinds of type of drive so as to provide electric drive for bicycle and ride two kinds of driving Power, using very convenient.

The first forward lock-up clutch 52 and the involved by co-axial middle-set motor of the present invention driving clutch assembly 100 Two forward the structure and working principle of lock-up clutch 53 be well known to those of ordinary skill in the art, no longer do herein detailed Explanation.

Above disclosed is only the preferred embodiments of the present invention, can not limit the right model of the present invention with this certainly Enclose, therefore the equivalent variations made according to scope of the present invention patent, still fall within the scope that the present invention is covered.

Claims (4)

1. a kind of end cap for clutch assembly, is arranged at the shell side of clutch assembly, it is characterised in that：In the end cap Through hole of the centre provided with the output overcoat for housing the clutch assembly, the inside of the end cap is provided with the first mounting groove, described first Mounting groove is used to house the bearing between the end cap and output overcoat；The outside of the end cap is set around the through hole There is the screw hole connected for fixed screw.

2. it is used for the end cap of clutch assembly as claimed in claim 1, it is characterised in that：The inside of the end cap is provided with the second peace Tankage, second mounting groove is used to house drive disk.

3. it is used for the end cap of clutch assembly as claimed in claim 1, it is characterised in that：The edge of the inner side of the end cap is provided with Step mating surface, the step mating surface and the housing of the shell coordinate, and the screw hole is arranged to be coordinated with the step The relative outside in face.

4. it is used for the end cap of clutch assembly as claimed in claim 1, it is characterised in that：Mounting torque is additionally provided with the end cap The working face of sensor.