CN110167835B

CN110167835B - Rear wheel driving structure of hybrid power motorcycle

Info

Publication number: CN110167835B
Application number: CN201780045806.4A
Authority: CN
Inventors: 赵红伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-08-10
Filing date: 2017-08-02
Publication date: 2021-12-03
Anticipated expiration: 2037-08-02
Also published as: WO2018028487A1; CN110167835A8; CN110167835A; CN106494561A

Abstract

A wheel part driving structure of a hybrid vehicle, in particular to a wheel part driving structure of a single-suspension single-side-shaft hybrid vehicle; the hub, the rim and the single-side closed spoke are integrally designed and have the function of a rotor, the stator adopts a modularized split type design, and the unique advantages of the double-row angular contact bearing are utilized to enable the structural combination to be more perfect; the hollow shaft is designed to be a funnel-shaped shaft center through hole, so that a single-side shaft meshed with the hub can also extend out of one side of the hollow shaft; the hub and the circular ring clamping body axially adopt mutually contacted and complementary annular inclined planes to overcome the defect of difficult structural disassembly and assembly; the threads at the outer end of the hollow shaft and the torsion bar or the suspension structure can be connected by adopting a pre-tightening positioning technology, so that the energy-saving upgrading installation of a single-side-shaft motorcycle and a new-energy electric and oil-electric hybrid vehicle is facilitated; meanwhile, the existing drum brake is upgraded to the disc brake, so that the safety performance of the vehicle is improved.

Description

Rear wheel driving structure of hybrid power motorcycle

Technical Field

The invention relates to a hybrid power motorcycle, in particular to a rear wheel driving structure of a single-suspension single-side-shaft hybrid power motorcycle, and also relates to a driving structure of a permanent magnet brushless motor; including the following patent numbers: development and application of CN200920305979.8 one-way clutch; the structure not only facilitates energy conservation and upgrading of the traditional fuel pedal motorcycle, but also facilitates production matching of the novel motorcycle, and the internal electric drive structure is also suitable for production matching of new energy electric vehicles.

Background

For a long time, fuel pedal motorcycles have been popular with friends of different ages and different sexes due to the characteristics of firm structure, simple operation, strong road condition adaptability and long endurance mileage; however, with the enhancement of energy-saving consciousness of people and the continuous progress of new energy technology, compared with the fuel cost, the electric scooter is quickly accepted by the market due to the advantages of low energy consumption, low noise and the like; however, in the actual use process of the electric scooter, the trip mood and the activity range of people are influenced and limited all the time due to the negative factors of long charging time, poor climbing and cruising ability and the like; how to realize perfect combination of the two from the structure and complementary advantages of the two in performance, the oil-electricity hybrid power technology is a widely accepted solution at present; however, the motorcycle with the unilateral shaft and single suspension structure has a special structure and the like, so that the prior art can not provide a relatively ideal hardware solution, and the market acceptance and popularization of the new energy pedal motorcycle are naturally hindered.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly provides a technical scheme of a rear wheel driving structure of a hybrid power motorcycle, which has compact structure and reliable performance, aiming at a rear wheel single-shock-absorbing single-side shaft type motorcycle, in particular to a pedal motorcycle; a. the technical problem to be solved is to provide a fuel engine which has no braking characteristic and is rigid and integral with a rear wheel suspension structure; b. another problem to be solved by the invention is to provide a magnetic steel embedding structure and an electric module clamping mechanism with reasonable structure; c. the invention also provides a stator pre-tightening positioning structure with reliable performance, wherein the stator locking mechanism is implemented after being matched by a bearing inner ring clamping structure A; d. the invention is characterized in that the structure is integrated to provide a complete rear wheel driving structure of the hybrid power motorcycle, so that the convenient operation characteristics of a rear wheel assembly are kept while perfect mixing is realized; e. the invention combines the advantages and simultaneously provides a novel intelligent hybrid power motorcycle, and finally realizes the effects of safety, practicability, high efficiency and energy conservation of the motorcycle.

Technical solution

In order to realize the aim, the invention is realized by the following technical scheme: firstly, the characteristics of the invention for reforming the rear wheel disc brake are combined, the original brake characteristics of the engine shell do not need to exist, so the brake characteristics of the fuel engine in the prior art need to be removed; similarly, for the novel engine shell, the design scheme of the shell about a brake structure can be directly abandoned, and the adaptive local structure adjustment is adopted so as to adapt to the matching installation of the hybrid power rear wheel assembly; because the main shaft nut at one end of the single-side shaft is subjected to brand-new structural design due to the space environment, the end part thread can also adopt more reasonable left-hand tightening threads.

With respect to the modular stator structure: in order to provide the maximum electric driving power for a vehicle, a, the invention provides an electric module clamping mechanism, which is combined with flexible clamping and fixing of self components of a stator to realize random allocation of electric modules with different powers, thereby effectively solving the defect of over-small capacity of the electric modules caused by narrow space; b. the invention also provides a magnetic steel embedding structure; the invention provides a matching solution of a magnetic steel embedding structure aiming at the problem that the rotor tile magnetic steel can possibly fall off because the electric drive structure factor causes vehicle failure, the magnetic steel embedding structure is characterized in that an embedding groove which is correspondingly complementary with an axial embedding surface of the tile magnetic steel is arranged at the joint of a spoke at the inner side of a wheel hub and a wheel rim of a magnetic yoke, a motor end cover at the other side of the tile magnetic steel is provided with an axial self-buckling edge which is complementary with the axial embedding surface of the corresponding tile magnetic steel, the axial stretching height of a radial inner circular arc surface of the self-buckling edge towards the direction of the tile magnetic steel is larger than the height of a radial outer circular arc surface, the embedding groove of the wheel hub or the self-buckling edge of the motor end cover can be freely combined left and right, and the embedded tile magnetic steel can also be an axial section with any shape, namely an embedding surface, if the filling ring is added into the gap between the embedding groove or the self-buckling edge and the axial embedding surface of the tile magnetic steel for filling, the electric modules with different capacities can be flexibly adjusted correspondingly, and the filling ring can be an O-shaped ring or an O-shaped ring consisting of C-shaped rings; the embedded tile magnetic steel has the structural characteristics that when the tile magnetic steel is applied, the axial height is always larger than the axial thickness of a corresponding electric module, namely a stator core; the axial stretching height of the arc surface on the radial outer side of the tile magnetic steel is always larger than that of the arc surface on the radial inner side.

As one of the structural characteristics, the motor stator attached to the hub is in an independent moving state, if the motor function is to be exerted, the stator is required to be fixed, the hollow shaft and the torsion bar are determined to be in a screw connection pre-tightening mode after the integral analysis, because the rigid connection effect of the structure can be ensured, in order to maintain the scheme, the problem that the stator cannot be controlled in the inner cavity of the hub needs to be solved firstly, because the stator is in a free rotation state in the inner cavity of the hub when the hollow shaft and the torsion bar are axially screwed and pre-tightened, the stator is reliably fixed when the screwing and pre-tightening operation is carried out, obviously, the inner cavity of the hub motor is firstly opened by manually combining the inner ring clamping mechanism A, and then the effective hollow shaft or the vehicle suspension is utilized to prevent the rotation and then realize the rigid connection between threads, so that the stator is prevented from randomly rotating in the cavity; what needs to be supplemented is that the pretension positioning is mainly to solve the problem that the lead is wound due to uncertain torsion between the hollow spindle and the torsion bar in the driving process, and when the vehicle executes the functions of self-generation or electromagnetic braking (E-ABS), the hollow spindle is in an opposite left-handed state from a normal right-handed tight state due to the reverse torque generated by cutting of the stator magnetic field, and the torsion generated by the left-handed rotation is exactly the left-handed torque required by loosening between the hollow spindle and the torsion bar, which brings the safety hazard to the vehicle; in order to ensure the stability and reliability of the pre-tightening connection, the invention effectively develops the structural space and provides a solution that a radial key body is added between the hollow shaft and the torsion bar, and the positioning function of the radial key body is utilized to prevent the radial key body and the torsion bar from accidentally rotating; it is emphasized that the pretensioning torque must be applied as required, while the radial key body should normally remain well relaxed.

The proposal is based on the structure of the motorcycle, so the original structural strength of the rear wheel hub needs to be kept to meet the capability of the spoke at one side to independently support the rated load of the vehicle, and simultaneously a space is also reserved for installing a stator, the motor stator part abandons the direct fixing mode of the conventional hollow shaft and is indirectly hung on the engine shell through the hub, so the motor hub can be attached to the hub main body through a set of double-row angular contact bearings to realize the movable connection between the motor rotor and the rear wheel hub, the unique performance of the double-row angular contact bearings is fully exerted, the axial stability is ensured while the radial movable connection of the stator is realized, and the axial displacement between the hub and the hollow shaft is limited, and the motor end cover has a higher rigid movable link effect, and the stability of the performance of the whole structure is further ensured by preventing the radial runout of the hollow shaft and matching with a sealing bearing on one side of the motor end cover.

The invention combines the implementation of a pre-tightening positioning structure to solve the problem of exposed laying of the wires, namely, a whole-course hidden laying mode is adopted, so that the defect that the wires are easy to damage is effectively overcome; and the influence of the whole disassembly and assembly of the rear wheel is avoided, and the more obvious appearance is neat and elegant.

The brake caliper on the torsion bar can always keep an integrated state with the stator due to a rigid pre-tightening positioning mode of the hollow shaft and the torsion bar, so that the brake caliper does not need to be separated from a brake disc when the rear wheel is disassembled, assembled and maintained or the tire is repaired, and the convenient effect is more obvious; the novel energy-source universal motorcycle comprises a main shaft nut, a sealing cylinder body, a modularized customized structure and the like, all of which accord with stable, safe and quick design concepts, and a hardware foundation is laid for the market of the novel energy-source universal motorcycle in the future.

Principle of operation

The hub is used as an external rotating body, is mainly movably connected with a bearing in a rear wheel suspension structure of the fuel engine by a unilateral shaft, and is attached to an engine shell to realize suspension positioning; the one-way clutch can automatically cut off unnecessary upstream mechanical resistance when the vehicle slides or is electrically driven, keep the relative independence and flexibility of the rear wheel and meet the mechanical coupling condition of a hybrid dual-power structure; the stator part is used as a main component for releasing electric energy, is attached to the hub through a double-row angular contact bearing and is reliably and movably connected with the hub, and the hollow shaft can independently rotate under the condition of no fixation because the hollow shaft is hidden in the hub under the normal state, so that the hub and the stator are actually independent and interdependent double-body movable combination relation; however, in order to realize the kinetic energy conversion of the stator, a torsion bar is finally utilized to axially pre-tighten the stator and then radially suspend the stator on the engine shell, so that the stator is changed from an original independent rotating body into a solid structure with the same displacement as the engine shell, the hub is used as a fulcrum to realize the fuel oil driving role, and the rotor role can be executed.

In the oil power mode, the engine transmits the left-handed torque to the outer ring of the one-way clutch, the viewing angle is positioned on one side of the engine, if the characteristic of the one-way clutch is defined under the condition, the outer ring is an active rotating ring at the moment, and the one-way clutch is: the characteristics of separation of the right-handed inner ring and the right-handed outer ring and closure of the left-handed inner ring and the left-handed outer ring are adopted; in combination with the above definition, at this time, because the oil power side is located and the outer ring is in the left-handed state while the outer ring is the driving rotating body, the result conforms to the characteristic of closing the left-handed inner and outer rings; therefore, the one-way clutch is closed and conducted, the hub is directly driven to rotate leftwards through the unilateral shaft, and the left rotation of the rear wheel on one side of the oil power is actually the forward direction of the vehicle; because the hub and the stator are movably connected, if the stator coil is in an open circuit state, the electric module winding and the tile magnetic steel cannot generate a cutting magnetic field, excitation resistance cannot be applied to normal rotation of the hub, and normal exertion of fuel efficiency is finally guaranteed.

In the electrodynamic force mode, after the stator is powered on, current flows through the stator coil in sequence to enable the stator to generate a rotating magnetic field, and due to the interaction of the rotating magnetic field of the stator and a tile magnetic steel tile magnetic field, right-handed rotation driving force is generated to directly drive the rear wheel to rotate and transfer kinetic energy to the inner ring of the one-way clutch through the unilateral shaft; in combination with the above, the inner ring is in the state of rotating rightwards and is in the state of rotating rightwards, and the result accords with the characteristic of separating the inner ring from the outer ring in the rightwards; therefore, the torque is separated and cut off at the moment, so that the power torque is separated instantly and stops further transmission, thereby preventing the abnormal phenomenon that the electric energy drags the redundant mechanical parts to rotate, and finally ensuring the normal exertion of the electric energy efficiency.

Advantageous effects

1. The motorcycle has the advantages that the motorcycle accords with the structural characteristics of the traditional single-suspension single-side-shaft motorcycle, promotes the popularization of new energy hybrid power, accelerates the development progress of new vehicle types, and enables the fuel scooter to have the potential of greatly saving energy.

2. The performance advantages of the double-row angular contact bearing are fully utilized, and the torsion bar is matched with the hollow shaft for connection and radial positioning, so that the overall stability between the structures is ensured, the optimization of a braking system is realized, conditions are created for perfecting ABS braking of a computer, and an ideal concept basis is provided for the research and development of an intelligent hybrid controller.

3. The center point of the patterned key area in the wheel hub and the center line of the wheel rim can be superposed structurally, so that the position of the rear wheel of the single-suspension and single-side shaft type motorcycle has a larger adjusting space, and the requirements of different motorcycle types are met.

4. The stator components are optimally matched to play the advantages of the electric module clamping mechanism, the expected effect is achieved, and the modular configuration of the stator winding is expected to be realized.

5. The pre-tightening threaded key connection and the radial positioning technology between the torsion bar and the hollow shaft facilitate the expected laying of the wires along the inside of the torsion bar, meet the structural integration requirement, and are convenient to maintain and more concise and elegant in appearance.

Drawings

Fig. 1-schematic top sectional view of the present invention.

Fig. 2-schematic diagram of the hollow shaft, torsion bar and screw pre-tightening positioning structure of the present invention.

Fig. 3-schematic view of the stator structure and the electric module clamping mechanism of the present invention.

Fig. 4-the hollow shaft and the structure of the invention are schematically shown.

In the figure 1-engine housing, 1 a-suspension structure, 1 b-structural profile, 1 c-suspension threaded hole, 1 d-end bearing, 2-one-way clutch, 3-single-side shaft, 3 a-external spline, 4-hub, 4 a-bulge, 4 b-internal spline, 4 c-first flange, 4 e-spoke, 4 f-embedded groove, 4 ac-annular slope, 5-arc A terminal, 6-wheel rim, 7-tile magnetic steel, 7 a-embedded surface, 7 b-outer circular arc surface, 7 c-inner circular arc surface, 7 d-filling ring, 7 e-magnetic yoke rim, 8-circular ring bracket, 8 a-third flange, 8 b-fourth flange, 9-double-row angular contact bearing, 10-ring holder, 10 a-second flange, 10 m-holding bolt, 10 ac-ring bevel, 11-spindle nut, 12-stator, 12 a-core rivet, 12 b-stator core, 12C-semi-cylindrical boss, 12D-C key slot, 12 e-hall sensor, 12 f-electric module, 13-ring frame, 13 a-protrusion edge, 14-hollow shaft, 14 a-end thread, 14 b-radial wire guide, 14C-holding positioning angle, 14D-bearing pedestal, 14 e-flange disk, 14 f-fifth flange, 14 g-wire guide, 14 i-key blind hole, 14 j-transition wire groove, 14k-D key slot, 14L-radial key slot, 14 m-disk bolt, 14 o-axial through hole, 15-lead wire, 15B-insulating filler, 15 c-lead wire sealing sleeve, 15 d-stator coil, 16-wire slot cover, 16 a-radial key outlet, 16B-sealing pad, 16 c-conical counter bore, 17-sealing bearing, 18-motor end cover, 18 a-brake disc blind hole, 18B-self-fastening edge, 18 c-inner edge surface, 18 d-outer edge surface, 19-arc B terminal, 20-torsion bar, 20 a-thread through hole, 20B-brake caliper fixing hole, 20 c-guide bolt hole, 20 d-bracket hole, 20 e-spare suspension hole, 20 f-spare bracket hole, 20 g-spare suspension hole, 20 h-wire slot blind hole, 20 i-lead wire slot, 20 j-radial key opening, the device comprises a 20 k-torsion bar central line, a 20L-pre-tightening axial surface, a 20 m-guide bolt, a 21-sealing cylinder, a 21 a-radial key body, a 21B-key body counter bore, a 21C-O-shaped ring, a 21D-column end groove, a 21 m-key body bolt, a Q-axis, an A-inner ring clamping mechanism, a B-outer ring clamping structure, a C1-pre-tightening positioning structure, a D-magnetic steel embedding structure, an E-electric module clamping mechanism, an EB-mixed clamping mechanism, a Q0-inner spline region central point, (Q1, Q2) -rim central line, a Q3-fan-shaped central line and a Q4-fan-shaped straight edge.

Best mode for carrying out the invention

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings; the invention discloses a rear wheel driving structure of a hybrid power motorcycle, which comprises a fuel engine shell 1, a one-way clutch 2 gear, a tail end bearing 1d, a single-side shaft 3, a novel spindle nut 11, a hub 4 and a motor end cover 18, wherein the fuel engine shell 1 is integrally and rigidly combined with a rear wheel suspension structure 1a and is subjected to structural adjustment or shaping, the one-way clutch 2 gear, the tail end bearing 1d and the single-side shaft 3 are positioned in the engine shell 1, the novel spindle nut 11 corresponds to a thread 14a at the end part of the single-side shaft 3, and the hub 4 and the motor end cover 18 have the rotor function of a brushless motor, wherein the hub 4, a spoke 4e and a magnet yoke rim 7e are integrated, and the rear wheel driving structure further comprises tile magnetic steel 7 which is matched in a 6-in bonding or embedding manner on the inner wall of the magnet yoke rim 7 e; one side of the motor end cover 18 is provided with a brake disc blind hole 18a for fixing a brake disc; the stator 12 is integrally designed in a split combination, and includes an electromotive module 12f formed by an annular stator core 12 b.

As a brand new design scheme, the bearing capacity of the original single-side spoke 4e of the rear wheel is kept, meanwhile, the internal space of the hub 4 is fully utilized, namely, a protruding part 4a of an inner ring of a nested double-row angular contact bearing 9 protrudes towards one side of a threaded cylinder of the single-side shaft 3 from the central hole wall of the hub 4; the spokes 4e of the hub 4 are in a closed form and are integrally formed with the hub 4 and the yoke rim 7e so as to meet the strength requirement required for the unilateral support of the hub 4, and the high-strength steel hub 4 can be directly provided with the internal splines 4b formed on the central hole wall; the tile magnetic steel 7 on the inner side of the magnetic yoke rim 7e can be directly adhered or matched in a firmer embedding mode, and is characterized in that an embedded embedding groove 4f which is correspondingly complementary with an axial embedding surface 7a of the tile magnetic steel 7 is arranged at the joint of the spoke 4e and the magnetic yoke rim 7e or one end of the magnetic yoke rim 7e, a motor end cover 18 at any end of the tile magnetic steel 7 is provided with an axial self-buckling edge 18b which is complementary with the axial embedding surface 7a of the corresponding tile magnetic steel 7, the axial stretching height of a radial inner edge surface 18c of the self-buckling edge 18b towards the direction of the tile magnetic steel 7 is larger than that of a radial outer edge surface 18D, the radial thickness of the embedding groove 4f at one end of the hub 4 or one end of the magnetic yoke rim 7e or the self-buckling edge 18b of the motor end cover 18 is larger than or larger than that of the tile magnetic steel 7, so that the embedded groove can be suitable for the embedding surface 7a of the tile magnetic steel 7 in any axial section shape, in order to fully exert the function of the magnetic steel embedding structure D, a filling ring 7D can be added into a gap between the embedding groove 4f or the self-fastening edge 18b and the axial embedding surface 7a of the tile magnetic steel 7 for filling, so that electric modules 12f with different capacities and the corresponding tile magnetic steel 7 can be installed in a set space, and the tile magnetic steel 7 can be singly adsorbed and fixed except being adhered to the inner wall of a magnetic yoke rim 7e due to the embedding positioning effect at two ends of the tile magnetic steel 7; the filling ring 7d can be constructed into different types for convenient allocation and use, and the filling ring 7d is an O-shaped sealing ring formed by an O-shaped ring or a C-shaped ring; as a unique feature of the magnetic steel embedding structure D, the axial height of the magnetic steel 7 embedded with the tiles is always greater than the axial thickness of the corresponding stator core 12 b; the axial stretching height of the radial outer side arc surface 7b of the tile magnetic steel 7 is greater than or equal to the axial stretching height of the radial inner side arc surface 7 c; the hub 4 and the rim 6 can be made of different materials and are rigidly connected with each other in a temperature difference interference fit mode, so that the existing aluminum alloy rim 6 can be recycled, the manufacturing difficulty of the integral hub 4 of the rim 6 is reduced, and the integral hub has good antirust and appearance effects; the positioning standards of the wheel hub 4 and the wheel rim 6 can be flexibly offset according to the requirements of the vehicle type, and are mainly determined by referring to the overlapping position condition of the central point Q0 of the inner spline area and the central line (Q1, Q2) of the wheel rim, so that the requirements of the vehicle are finally met.

The annular framework 13, the electric module 12f and the circular bracket 8 are mutually matched to form an electric module clamping mechanism E; the annular framework 13 is provided with a flexibly utilized side A annular surface 13a, and the annular framework 13 and the annular bracket 8 can realize axial clamping of an outer ring clamping mechanism B of the electric module 12f in a radial staggered arrangement structural mode at the left or right side or between the left and right sides of the annular framework 13; achieving this clamping effect, of course, requires axially positioning the projecting edge 14q of the stator core 12b at the radially outer surface of the fifth flange of the hollow shaft 14 in cooperation with the radially stretched portion; the circular ring bracket 8 and the circular framework 13 can be combined and correspondingly clamped at two sides of the stator core 12 b; at the same time, it is also possible to achieve a BE or hybrid clamping axially with the radially outward fourth flange 8b and the inward third flange 8a of the ring clamp carrier 8.

The electric module 12f comprises a stator core 12b, a stator coil 15d, a Hall sensor 12e and a connecting wire 15, wherein the stator core 12b, the stator coil 15d, the Hall sensor 12e and the connecting wire are integrated together through a core rivet 12 a; the semi-cylindrical bosses 12c are in radial engagement with the hollow shaft 14 and are in equal distribution axial stretching and equal distribution axial stretching; the semi-cylindrical boss 12c forms a complete radial meshing surface with a D key slot 14k of the hollow shaft 14 and the annular framework 13 respectively; the semi-cylindrical boss 12C can be replaced by a C key groove 12d, and if the C key groove 12d is adopted, a cylinder specially used for meshing needs to be filled inside; the electric module 12f is arranged on one side surface of the Hall sensor 12e and is provided with an arc A terminal 5 which is convenient for connecting a lead 15; the arc-shaped A terminal 5 is of a series type and a parallel type; the stator core 12b of the electromotive module 12f may have different coaxial thicknesses; the radial inner surface of the stator core 12b of the electric module 12f can be provided with a plurality of semi-cylindrical bosses 12C which are axially penetrated and a plurality of embedded C key slots.

The double-row angular contact bearing 9 is a key component for realizing the movable connection between the rigid whole of the hub 4 and the stator 12, the special performance of the double-row angular contact bearing solves the connection requirement of the stable whole structure, and the movable link with higher rigidity strengthens the whole stability of the disc brake system.

Based on the characteristic that the inner ring and the outer ring of the double-row angular contact bearing 9 need to be clamped, a first flange 4c needs to be protruded from the starting point position of the protrusion part 4a of the wheel hub 4 to be used as a base point for positioning the double-row angular contact bearing 9, a thread countersunk hole is formed in the cross section of the protrusion part 4a, the circular ring clamping body 10 is tightened through a clamping body bolt 10m to realize clamping, a second flange 10a corresponding to the wheel hub 4 is protruded outwards from the outer side surface of the circular ring clamping body 10 in the radial direction, and the inner ring of the double-row angular contact bearing 9 is clamped by matching with the first flange 4 c; in order to increase the strength of the ring clamping body 10 itself in a space-saving manner, the length of the projection 4a is slightly smaller than the thickness of the double-row angular contact bearing 9 and a clamping connection is formed by one clamping body.

In order to clamp and fix the outer ring of the double-row angular contact bearing 9, and combine the structural characteristics and the mutual relationship among the hub 4, the double-row angular contact bearing 9 and the stator 12, the stator core 12b and the hollow shaft 14 are disassembled, so that the necessary operation steps for clamping the double-row angular contact bearing 9 can be realized, therefore, a shared connecting body, namely a circular ring bracket 8 needs to be separated, the integral reduction combination of the stator 12 is realized by utilizing the axial and radial connecting functions of the circular ring bracket 8, and the double-row angular contact bearing is characterized in that one end of the circular ring bracket 8 protrudes inwards in the radial direction, and a third flange 8a for positioning the outer ring of the double-row angular contact bearing 9 and a fourth flange 8b for positioning the stator core 12b protrude outwards in the radial direction; the outer ring of the double-row angular contact bearing 9 is clamped at the same time; the third flange 8a can also be provided with a through hole or a threaded through hole for changing the use mode; a plurality of wire holes which are communicated with the outside in the axial direction are formed between the inner wall and the outer wall of the hollow shaft 14; the joint surface of the circular ring bracket 8 and the hollow shaft 14 can be designed to be axially offset towards one side of the circular ring bracket 8 when the single-side shaft 3 penetrates through the shaft center through hole 14o, the joint surface is provided with axial holes which are connected with the wire guide holes one by one, and the joint surface can be mutually complementary conical surfaces; the flange disc body 14e edge of the hollow shaft 14 is provided with a flange which axially clamps the stator core 12b by the fourth flange 8b on the corresponding circular ring bracket 8; the through holes and the threaded holes for the bolt connection between the ring bracket 8 and the hollow shaft 14 can be designed in a variable manner according to the mode of the single-sided shaft 3 or the left or right penetration; the end screw thread of the single-sided shaft 3 and the associated spindle nut 11 can be omitted together during the threading operation through the axial center through hole 14 o.

The hollow shaft 14 is provided with a shaft center through hole 14o with two through ends, a sealing waterproof sealing column 21 is arranged in the shaft center through hole 14o, the middle section of the outer wall of the hollow shaft 14 is provided with a bearing pedestal 14d for nesting an inner ring of a sealing bearing 17, one end adjacent to the bearing pedestal 14d is provided with an end thread 14a for connecting a torsion bar 20, the other end is a funnel-shaped flange disk body 14e protruding outwards in the radial direction, the radial edge of the flange disk body 14e further protrudes outwards in the axial direction and is correspondingly provided with a fifth flange 14f connected with a ring bracket 8, a clamping positioning angle 14c on the inner side is mainly used for clamping an outer ring of the double-row angular contact bearing 9, the structure characteristics of the ring clamping body 10 and the inner ring of the double-row angular contact bearing (9) have an integral structure condition and obvious characteristics, the hollow shaft 14 is provided with an outer wall of the radial inner surface of a stator core 12b nested at one end and an inner wall of the outer ring of the nested double-row angular contact bearing 9, the other end of the hollow shaft 14 is provided with an outer wall which penetrates through an inner ring of a sealing body or a sealing bearing 17 or has an inner ring structure and an axial center through hole 14o which can pass through the unilateral shaft 3; a plurality of curve through holes and lead 15 holes or hole grooves which are formed after the axial and radial mutual communication are arranged between the inner wall and the outer wall of the hollow shaft 14; the hollow shaft 14 has a surface that engages a radially inner surface of the stator core 12 b; one end of the hollow shaft 14, which faces the motor end cover 18, is provided with a positioning structure consisting of an axial screw thread positioning end part thread 14a, a radial meshing positioning radial key hole 14L and a body building blind hole 14i which is radially superposed and positioned; the hollow shaft 14 may have a radial projecting edge 14q that axially positions the stator core 12 b; the hollow shaft 14 is axially screwed and radially pre-tightened and positioned, and a front-and-rear bridge type vehicle suspension structure can be further included; the one-way clutch 2 can be replaced by a clutch structure which has both one-way automatic separation and two-way passive locking; the one-way clutch 2 and the single-side shaft 3 connected with the one-way clutch in a meshing mode can be omitted when the hub property of the one-way clutch is a pure electric drive configuration; the outlet of the outer side of the central spline hole of the hub 4 can be closed; the unilateral shaft 3 and the hub 4 may also be integral; the unilateral shaft 3 can also be assembled with a brake disc; the inner ring clamping mechanism A and the outer ring clamping mechanism B can also clamp a bearing which comprises a single-row angular contact bearing and is provided with a pair of bearings in an oriented way; the bearing inner ring clamping mechanism A mainly comprises a hub 4, a ring clamping body 10 and a connecting bolt 10 m; one surface of the ring clamping body 10 is provided with a second flange 10a which clamps the inner ring of the double-row angular contact bearing 9 correspondingly to the first flange 4c on the hub 4; the axial combination surfaces of the hub 4 and the ring clamping body 10 can be mutually complementary conical surfaces; the through holes and the threaded holes for the bolt connection of the hub 4, the ring clamping body 10 and the end covers can be designed in a changed mode according to the penetrating mode of the single-side shaft 3 or the left or right, and the hub 4 can be provided with rims 6 made of different materials which are directly nested or mounting holes which are convenient for disassembling spoke rims; the bearing outer ring clamping mechanism B can be completed by a hollow shaft 14 and a circular ring bracket 8 through a plate body bolt 14m, and has the function of axially clamping and radially meshing the annular stator core 12B; the axial wire holes 14g in the wall of the hollow shaft 14 have the same diameter, number and orientation as the radial wire holes 14b on the flanged disc body 14 e; the radial wire hole 14b and the axial wire hole 14g are intersected and communicated with each other in an arc shape in the hollow shaft 14, the laid wires 15 in the wire hole 15 are filled and fixed by adopting insulating fillers 15b, and a transition wire groove 14j which is intersected after arc milling along the direction of a fan-shaped central line Q3 is arranged at the axial outlet of the axial wire hole 14g, namely the cross section of the hollow shaft 14; a radial key opening A14L corresponding to the torsion bar 20 in the radial direction is arranged on the radial opposite surface of the transition wire slot 14j, the radial center line of the radial key opening A14L is parallel to the sector center line Q3, the diameter of the radial key opening A14L is set to be less than or equal to the diameter of the axle center through hole 14o, an axial key opening blind hole 14i for fixing the sealing column body 21 is further arranged in the center of the axial surface area of the radial key opening A14L, a lead sealing sleeve 15c is arranged at the final outlet of the lead 15, and the radial key body 21a and the sealing column body 21 at one end are integrated; the inner ring clamping mechanism A comprises a hub 4, a convex part 4a and a first flange 4c thereof, a ring clamping body 10 and a clamping bolt 10 m; the hub 4 has a ring clamping body 10 connected by a clamping bolt 10 m; the hub 4 is provided with a convex part 4a extending into the inner ring of the circular ring clamping body 10; the convex part 4a is provided with an annular inclined surface 4ac which is convex formed by the outer wall and the chamfer of the axial section; the ring clamping body 10 is provided with an outer wall with the axial height not more than the axial height of the inner ring of the double-row angular contact bearing 9; one end of the ring clamping body 10 facing the convex part 4a is provided with a concave annular inclined surface 10ac which is axially attached and complementary with the convex annular inclined surface 4ac, and the other end of the ring clamping body 10a is radially outwards provided with a second flange 10a which is used for correspondingly positioning the inner ring of the double-row angular contact bearing 9; the hub 4 does not have a rim 6; the angular contact bearing 9 is generally referred to as a similar bearing.

In order to finally exert the driving performance of the stator electric module 12f, a threaded through hole 20a at one end of the torsion bar 20 is axially pre-tightened and positioned and connected with an end thread 14a of the hollow shaft 914, and then is radially connected with the engine shell 1 in a hanging mode through a guide bolt 20 m; meanwhile, the defect that the lead 15 is extremely easy to damage is effectively overcome; a wire groove 20i which is through in the radial direction is formed in the side wall of the threaded through hole 20a of the torsion bar 20 along the direction of the central line 20k of the torsion bar, the width of the wire groove 20i is not more than the diameter of the threaded through hole 20a, the depth of the wire groove 20i is based on the diameter of a wire 15 matched with the capacity of the largest electric module 12f, and the wire groove 20i is provided with a wire groove cover 16 comprising a sealing gasket 16b and a wire groove blind hole 20 h; the other side wall of the wire groove 20i is provided with a radial key hole B20 j which has the same size with the radial key hole A14L of the hollow shaft 14 and is horizontally aligned with the central line 20k of the torsion bar; the torsion bar center line 20k and the hollow shaft 14 fan-shaped center line Q3 are required to be consistent in radial direction after being connected; one end of the wire groove cover 16 is provided with a radial key body 21a outlet which is equal to the maximum axial surface shape of the radial key body 21a and a conical counter sink 16c which is fixed corresponding to the wire groove blind hole 20 h; the torsion bar 20 and the hollow shaft 14 are normally integrated, the torsion bar 20 has a wire groove 20i, a brake caliper fixing hole 20b, a brake pump oil pipe bracket hole 20d and a standby hanging hole 20e, and a standby bracket hole 20f and a standby hanging hole 20g are arranged below the wire groove 20 i; finally, the guide bolt hole 20c at one end of the torsion bar 20 axially corresponds to the engine hanger screw hole 1c and is axially merged and then suspended on the engine case 1 by the guide bolt 20 m.

Industrial applicability

The stator 12 and the torsion bar 20 are structurally connected by adopting a bolt joint pre-tightening positioning structure C1, and the main purpose is to prevent the later-stage traffic hidden trouble caused by the bolt joint mode and fully and flexibly exert the bolt joint stability and rigidity advantages; however, due to special structural factors, the bolt-on pretension method must have a matched wheel axle suspension bolt-on structure including the vehicle suspension structure 1 a; the suspension structure generally refers to a vehicle wheel suspension in the prior art and can be axially screwed and radially pre-tensioned and positioned with the vehicle bridge type suspension structure; the suspension structure 1a or torsion bar 20 and the end screw 14a of the hollow axle 14 have respective screw through holes 20a and positioning radial key holes 20j, guide bolt holes 20c engaged with each other; the rigid threaded pretension positioning structure C1 further comprises

radial key openings

14L and 20j, a body-building blind hole 14i, a meshed radial body-building 21a and a guide bolt 20m which are embedded simultaneously; the radial health body 21a and the guide bolt 20m can have taper or corresponding special-shaped key body shapes; the wheel suspension having a disc brake or corresponding cylinder configuration; the wheel suspension may be a torsion bar 20 rod-shaped body having a transitional coupling function; the wheel part suspension can also be a special-shaped disk body with a transitional connection function; the wheel suspension can have independent support vehicle-mounted performance; the wheel suspension may have a guard wire groove 20i and its wire groove cover 16; the screwing pretension positioning structure C1 needs a matched reasonable implementation method to be reliably completed.

Mounting structure of the motorized module clamping mechanism B, E or EB; the end section of the fifth flange 14f of the hollow shaft 14 is provided with a disc body bolt 14m hole of the connected annular framework 13 or the annular bracket 8; the annular framework 13 is provided with a radially outward protruding edge 13 a; the ring-shaped bobbin 13 may be integrated with the stator core 12 b; the annular framework 13 is provided with an axial corresponding section with the radial width smaller than that of the fifth flange 14f and a hole or an opening passing through the lead 15 on the section; the ring carrier 8 has a third flange 8a for positioning a double row angular contact bearing 9; the circular ring bracket 8 and the circular skeleton 13 can be provided with a plurality of axial through holes or lead 15 holes; the circular ring bracket 8 and the circular skeleton 13 can be radially staggered or have an integral structure; after the double-row angular contact bearing 9 is nested on the inner wall of one end of the hollow shaft 14 and is installed in place, the clamping connection of the outer ring clamping mechanism B is completed in an axial direction through a plate body bolt 14m by matching with the circular ring bracket 8 or the annular framework 13; meanwhile, the annular bracket 8 or the annular framework 13 can complete the axial direction of the stator core 13b of the electric module 12f through the fifth flange 14f of the hollow shaft 14 and the disk body bolt 14m, namely, an electric module clamping mechanism E is formed.

The operation method of the stator hollow shaft 14 matched with the pre-tightening positioning structure C1 is as follows: the bearing inner ring clamping mechanism A is matched with the structural characteristics, and the process of 'screwing, pre-tightening and positioning' in the middle is mainly divided into three steps; wherein: the first step of screw connection: the end thread 14a of the hollow shaft 14 is in axial threaded engagement with the suspension structure 1a with the threaded through hole 20a and the torsion bar 20; the screwing direction is defined before operation: assuming the right or left side of the vehicle as a precondition for implementation, and assuming that the suspension structure 1a or the torsion bar 20 is now integrally connected with the vehicle, the direction of holding and rotating the hollow axle 14 is expressed as a direction toward the front or rear of the vehicle, and the reasonable screwing direction law is as follows: the operation is correctly performed by screwing towards the rear of the vehicle body; second step pre-tightening: the pre-tightening torque is required to be larger than the maximum driving force or output torque of the vehicle wheel stator 12 or the electric module 12f for driving the rotor; the hollow shaft 14 is rotated to a preset torque by an auxiliary mode, the superposition effect of the radial keyholes (14L, 20 j) is observed, the gap of the pre-tightening axial surface 20L is adjusted by repeatedly assembling and disassembling and matching with a steel pad filling mode until the pre-tightening requirement is met and the accurate superposition of the radial keyholes (14L, 20 j) is achieved; thirdly, positioning: all the radial key bodies 21a are correctly embedded to complete the meshing positioning; the shear strength of the radial key body 21a ensures that the shear force generated by the rotor body driven by the vehicle wheel stator 12 or the electric module 12f is greater than the shear force generated by the rotor body, and finally the radial key body 21a is prevented from loosening and being reliably connected by the key body bolts 21m or fixed in an overlapping manner.

The method for mounting and dismounting the rear wheel assembly, the unilateral shaft 3 and the engine shell 1 comprises the following steps: a. rear wheel assembly installation, 1), a large vehicle frame is supported, 2), obstacles on the surface of a suspension structure 1a of the unilateral shaft 3 are checked and eliminated, 3), a little butter is coated on the external spline 3 of the unilateral shaft 3, 4), the hole of an internal spline 4b of a hub 4 is slightly forced to be axially pushed in by aligning with the external spline 3 of the unilateral shaft 3, 5), a matched internal hexagonal wrench is inserted into an axis through hole 14o and 6), two hands respectively push the rear wheel axially and simultaneously rotate the internal hexagonal wrench until the rear wheel is basically in place, 7) the large vehicle frame is put down to enable the rear wheel to land, 8) and the internal hexagonal wrench continue to apply torque force through a force applying rod until a main shaft nut 11 is screwed in place; b. checking halfway, 1), supporting a large vehicle frame, 2), holding the edge of the tire by hands symmetrically, 3), shaking the rear wheel by axial alternate force, 4), keeping on the next normal mounting step d, 5), and executing an abnormal removing step c, wherein the rear wheel is normally free of moving gaps; c. exception removal, 1), reverse-order execution (a, 8-5) to remove the rear wheel, 2), sleeving a proper filling gasket on the single-side shaft 3, and 3), and sequential execution (a, 1, 4-8, b, 1-4) to complete removal; d. normal installation, 1), confirming that an O-shaped ring 21c in a column end groove 21d is aligned with a radial key outlet 16a and inserted into a sealing column body 21 to finally ensure that a radial key body 21a is meshed in place, 2), screwing a key body bolt 21m in an aligned key body countersunk hole 21b, 3), 11, checking a lead 15 in a lead groove 20i, installing a sealing gasket 16b, fixing the lead groove 20i through a conical countersunk hole 16c by a bolt, covering 16 and 4), axially aligning a torsion bar 20 guide bolt hole 20c with threaded holes 1c and 5 of a pendant of an engine shell 1, checking the gap among each other and selecting proper gaskets to naturally fill, 6), axially penetrating and positioning through a guide bolt 20m, 7), checking an external lead 15 terminal or plug, 8), respectively connecting a power lead 15 and a corresponding Hall sensor 12e signal wire, 9), installing and fixing a rear wheel brake caliper, 10), connecting a rear wheel brake oil pump pipeline, 11) straightening the high-pressure oil pipe and fixing the high-pressure oil pipe on the bracket hole 20d to finish installation; e. disassembling and maintaining the rear wheel tire, 1) executing in a reverse order (d, 8, 2, 1, c and 1) to complete the disassembly of the rear wheel; in the above paragraphs, the preferred embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims

1. The rear wheel driving structure of the hybrid motorcycle comprises a suspension structure (1 a) which is rigidly connected with a fuel engine shell (1) or movably connected with the fuel engine shell through a pivot; a unilateral shaft (3) which is engaged with the one-way clutch (2) and then extends out of the engine shell (1); a hub (4) engaged with the external spline (3 a) of the unilateral shaft (3) and a spindle nut (11) corresponding to the end part thread of the unilateral shaft (3); a rotor, a stator and a motor end cover (18) of the brushless motor; the wheel hub (4), the spoke (4 e) and the magnetic yoke rim (7 e) are integrated; the rotor is provided with tile magnetic steel (7) adhered to the inner wall of the magnetic yoke rim (7 e); the outer wall of the magnetic yoke rim (7 e) is provided with an integral or positioning welded wheel rim (6); motor end cover (18) one side has brake disc blind hole (18 a) that is used for fixed brake disc, its characterized in that: -a structural profile (1 b) on the suspension structure (1 a) rigidly connected to the engine house (1) without braking formations or associated braking members; the stator is a combined single-side shaft inner stator (12); the hub (4) is a single-side shaft outer rotor with a multi-functional structure; the rotor adopts a magnetic steel embedding structure (D) to be matched with and reinforce the tile magnetic steel (7); the movable connection between the rotor and the stator (12) is mainly completed by a set of sealing bearing (17) and a set of double-row angular contact bearing (9); the double-row angular contact bearing (9) is provided with a corresponding inner ring clamping mechanism (A) and an outer ring clamping mechanism (B); a bulge (4 a) for nesting the inner ring of the double-row angular contact bearing (9) is arranged on one side of the central hole wall of the hub (4) facing the hollow shaft (14); the starting point position of the bulge part (4 a) is provided with a first flange (4 c) for positioning the bearing inner ring; the cross section of the end part of the bulge part (4 a) is provided with a circular ring clamping body (10) which is axially connected through a clamping bolt (10 m); the axial combination surfaces of the hub (4) and the circular ring clamping body (10) are provided with annular inclined surfaces (4 ac, 10 ac) which are complementary with each other; the hub (4) is provided with a spoke (4 e) which is supported and sealed on one side surface; the stator (12) is provided with an annular framework (13) which protrudes inwards in the radial direction and clamps the stator iron core (12 b) in the axial direction; the end part of the stator core (12 b) is provided with a funnel-shaped hollow shaft (14) which is indirectly and axially connected and one end of which extends out through a motor end cover (18); the double-row angular contact bearing (9) and the stator core (12 b) are provided with a ring bracket (8) and a hollow shaft which are radially nested and can be axially connected by bolts; the hollow shaft (14) can be integrated with the torsion bar (20) or the suspension structure (1 a) movably connected through a pivot through a rigid threaded pretension positioning structure (C1); the end part of the single-side shaft (3) is provided with a main shaft nut (11) which is composed of a threaded inner wall at one end, a polygonal inner wall at the adjacent end and a smooth outer wall of the polygonal inner wall; the stator (12) has an annular stator core (12 b) constituting an electromotive module (12 f); the radial outer wall of the hub (4) is provided with a nested or integral rim (6) in a temperature difference interference fit mode.

2. The rear wheel drive structure of a hybrid motorcycle of claim 1, wherein: the inner ring clamping mechanism (A) comprises a hub (4), a bulge part (4 a) and a first flange (4 c) thereof, a ring clamping body (10) and a clamping bolt (10 m); the hub (4) is provided with a circular ring clamping body (10) connected through a clamping bolt (10 m), and the hub (4) is provided with a convex part (4 a) extending into the inner ring of the circular ring clamping body (10); the convex part (4 a) is provided with an annular inclined surface (4 ac) which is convex and formed by the outer wall and the chamfer of the axial section; the circular ring clamping body (10) is provided with an outer wall with the axial height not more than that of an inner ring of the double-row angular contact bearing (9); one end of the ring clamping body (10) facing the bulge (4 a) is provided with a sunken annular inclined surface (10 ac) which is in axial fit and complementary with the corresponding bulge (4 a), and the other end of the ring clamping body (10) facing outwards in the radial direction is provided with a second flange (10 a) which is used for correspondingly positioning the inner ring of the double-row angular contact bearing (9); the hub (4) having no rim (6); the double-row angular contact bearing (9) refers to the same kind of bearing.

3. The rear wheel drive structure of a hybrid motorcycle of claim 1, wherein: the electric module (12 f) is provided with a corresponding electric module clamping mechanism, and the electric module clamping mechanism (E) comprises a hollow shaft (14) and an annular framework (13); the cross section of one end or a fifth flange (14 f) of the hollow shaft (14) facing the hub (4) is respectively provided with a threaded connecting hole and a wire guide hole (14 g) outlet which are axially connected with the annular framework (13) through a plate body bolt (14 m); the annular framework (13) is provided with a protruding edge (13 a) facing outwards in the radial direction; the annular framework (13) can be integrated with the stator core (12 b); the annular frame (13) has an axially corresponding section with a radial width smaller than that of the fifth flange (14 f) and a hole or opening through which the lead (15) passes on the section.

4. The rear wheel drive structure of a hybrid motorcycle of claim 1 or 3, characterized in that: the electric module (12 f) comprises a stator iron core (12 b) and an annular framework (13); the radial inner surface of the stator core (12 b) is provided with a semi-cylindrical boss (12C) which is axially through and an embedded C key groove.

5. The rear wheel drive structure of a hybrid motorcycle of claim 1 or 3, characterized in that: the electric module clamping mechanism (E) and the outer ring clamping mechanism (B) can form a corresponding mixed clamping mechanism (EB); the outer ring clamping mechanism (B) is formed by axially connecting a disc body bolt (14 m) with a hollow shaft (14) through a circular ring bracket (8) and an annular framework (13) respectively; the ring carrier (8) has a third flange (8 a) for positioning a double row angular contact bearing (9); the circular ring bracket (8) and the circular skeleton (13) are provided with a plurality of axial through holes or lead wire (15) holes; the circular ring bracket (8) and the annular framework (13) have the section width less than that of the fifth flange (14 f); the circular ring bracket (8) and the circular skeleton (13) can be combined and correspondingly clamped at two sides of the stator core (12 b); the circular ring bracket (8) and the circular skeleton (13) can be radially staggered or have an integral structure with each other.

6. The rear wheel drive structure of a hybrid motorcycle of claim 1, 2 or 3, wherein: the hollow shaft (14) is provided with an outer wall with one end nested with the radial inner surface of the stator core (12 b) and an inner wall nested with the outer ring of the double-row angular contact bearing (9), and the other end of the hollow shaft (14) is provided with an outer wall which penetrates through a sealing body or an inner ring of a sealing bearing (17) or has an inner ring structure and an axle center through hole (14 o) which can pass through the unilateral shaft (3); a plurality of curve through holes and wire (15) holes or hole grooves which are formed by connecting the inner wall and the outer wall of the hollow shaft (14) with the torsion bar (20) after being communicated with each other in the axial direction and the radial direction are arranged between the inner wall and the outer wall of the hollow shaft; the hollow shaft (14) has a surface which is correspondingly engaged with the radial inner surface of the stator core (12 b); one end of the hollow shaft (14) facing the motor end cover (18) is provided with a positioning structure consisting of an axial screw thread positioning end part thread (14 a), a radial meshing positioning radial key opening (14L) and a radial superposed positioning key body blind hole (14 i).

7. The rear wheel drive structure of a hybrid motorcycle of claim 1 or 2, characterized in that: the suspension structure (1 a) comprises a cantilever type torsion bar (20) which is in threaded connection with one end of the hollow shaft (14) for positioning; said suspension structure (1 a) is broadly referred to as a prior art vehicle wheel suspension; the end thread (14 a) of the hollow shaft (14) is provided with a corresponding rigid threaded pretension positioning structure (C1) and an implementation method thereof; said suspension structure (1 a) having a threaded through hole (20 a) and a positioning radial key (20 j), a guide bolt hole (20 c) with respective end threads (14 a) engaged with each other; the rigid threaded pretension positioning structure (C1) further comprises a radial key body (21 a) and a guide bolt (20 m), wherein the radial key openings (14L, 20 j) and the key body blind hole (14 i) are simultaneously embedded and meshed; the wheel part suspension has a disc brake or a corresponding cylinder configuration; the cantilevered torsion bar (20) has a guard wire channel (20 i) and its channel cover (16).

8. The rear wheel drive structure of a hybrid motorcycle of claim 1 or 2, characterized in that: the bearing inner ring clamping structure (A) comprises a double-row angular contact bearing (9) inner ring; the inner ring of the double row angular contact bearing (9) is integral with the ring clamping body (10), the inner ring of the double row angular contact bearing (9) not having the second flange (10 a).

9. A magnetic steel embedded structure (D) suitable for use in a rear wheel drive structure of a hybrid motorcycle according to claim 1, comprising a rotor of said brushless motor, characterized in that: further comprising said hub (4); an embedding groove (4 f) which is correspondingly complementary with the axial section or the embedding surface (7 a) of the tile magnetic steel (7) is formed at the joint of the spoke (4 e) at one side of the hub (4) and the magnetic yoke rim (7 e); the motor end cover (18) is provided with an axial self-buckling edge (18 b) which is correspondingly complementary with the axial embedding surface (7 a) of the tile magnetic steel (7); the radial inner edge surface (18 c) of the self-fastening edge (18 b) facing the tile magnetic steel (7) is provided with an axial stretching height larger than the height of the radial outer edge surface (18 d); the inner side of the hub (4) is embedded into the groove (4 f) after the port of the magnetic yoke rim (7 e) is combined with the port of the hub (4), and the radial height or thickness of the self-fastening edge (18 b) of the motor end cover (18) is larger than or equal to the radial thickness of the tile magnetic steel (7); a filling ring (7 d) can be added between the embedding groove (4 f) or the self-buckling edge (18 b) and the axial embedding surface (7 a) of the tile magnetic steel (7) for filling; the hub (4), the motor end cover (18) and the magnetic yoke rim (7 e) can be combined optionally according to corresponding characteristics; the magnet yoke rim (7 e) of the rotor is provided with an embedding groove (4 f) which is axially embedded into the tile magnetic steel (7).

10. Tile magnetic steel (7) associated with a magnetic steel embedding structure (D) according to claim 9, characterized in that: the axial height of the tile magnetic steel (7) is larger than the axial thickness of the corresponding stator iron core (12 b); the axial stretching height of the radial outer side arc surface (7 b) of the tile magnetic steel (7) is larger than the axial stretching height of the radial inner side arc surface (7 c).

11. A hub motor comprising a rear wheel drive structure of a hybrid motorcycle according to claim 1, comprising a rotor and a stator of the brushless motor, characterized in that: the magnetic steel embedding structure (D) is also included; the rotor has a rim (6).

12. A fuel engine applied to a rear wheel drive structure of a hybrid motorcycle of claim 1, comprising the engine case (1), characterized in that: the suspension structure (1 a) rigidly connected to the engine housing (1) has, on its structural profile (1 b), means for facilitating the removal and for the cooperation of the different braking functions and corresponding connection configurations.

13. A motorcycle which can be matched with the rear wheel drive structure of the hybrid motorcycle of claim 1, characterized in that: comprising a fuel-powered engine as claimed in claim 12.

14. A hybrid motorcycle characterized in that: including the hybrid motorcycle rear wheel drive structure of any one of claims 1 to 8.

15. An implementation method matched with the rear wheel driving structure of the hybrid motorcycle of claim 7 is characterized in that: the implementation method of the rigid screw connection pretension positioning structure (C1) is divided into three steps of screw connection, pretension and positioning, wherein: the first step of "screwing": screwing and meshing the threads (14 a) at the end part of the hollow shaft (14) with the suspension structure (1 a) with the threaded through hole (20 a) and the torsion bar (20) in place; the screwing direction is defined before operation: the assumption is made that the vehicle faces the left or right side of the vehicle, and assuming that the suspension structure (1 a) or the torsion bar (20) is now integrally connected with the vehicle, the direction of holding and rotating the hollow tightening shaft (14) is as follows when the direction of screwing is expressed towards the front or the rear of the vehicle: the operation is correctly performed by screwing towards the rear of the vehicle body; second step "pretension": the required pretightening force is larger than the maximum driving force or output torque of a vehicle wheel stator (12) or an electric module (12 f) for driving a rotor; the hollow shaft (14) is rotated to a preset torque by an auxiliary mode, the superposition effect of the radial keyways (14L, 20 j) is observed, the gap of the pre-tightening axial surface (20L) is adjusted by repeatedly assembling and disassembling and matching with a steel pad filling mode until the pre-tightening requirement is met and the accurate superposition of the radial keyways (14L, 20 j) is achieved; the third step is positioning: the engagement positioning is completed by correctly embedding all the radial key bodies (21 a); the shearing strength of the radial key bodies (21 a) ensures that the shearing force generated by the driving rotor body of the vehicle wheel part stator (12) or the electric module (12 f) is greater than that, and finally the radial key bodies (21 a) are prevented from loosening and being reliably connected through the connection or the superposition fixation of the key body bolts (21 m).

16. A method of attaching and detaching a hybrid motorcycle according to claim 14, comprising: the implementation method can be divided into a-e; wherein: a. the rear wheel assembly is installed: 1) the vehicle big frame is supported; 2) checking and eliminating the surface obstacle of the suspension structure (1 a) of the unilateral shaft (3); 3) coating a little grease on the external spline (3 a) of the unilateral shaft (3); 4) slightly forcibly and axially pushing the hole of the internal spline (4 b) of the hub (4) into the external spline (3 a) of the unilateral shaft (3); 5) inserting a matched internal hexagonal wrench into the axis through hole (14 o); 6) the rear wheel is respectively pushed by two hands axially, and the inner hexagonal wrench is rotated simultaneously until the rear wheel is basically in place; 7) the large frame of the vehicle is put down to lead the rear wheels of the vehicle to land; 8) the inner hexagon is assisted by a force applying rod until a spindle nut (11) is screwed in place; b. checking and confirming in midway: 1) the vehicle big frame is supported; 2) the tire edge is symmetrically held by both hands; 3) axially and alternately shaking the rear wheel with force; 4) after feeling that no movement gap exists, continuing to normally continue the installation in the step d, and if an abnormal movement gap exists, executing abnormal elimination in the step c; c. exception elimination: 1) and executing 'a, 8-5' in the reverse order to remove the rear wheel; 2) the single-side shaft (3) is sleeved with a proper filling gasket; 3) sequentially executing the steps of a, 1, 4-8, b and 1-4 to finish the elimination; d. and (4) normally continuing installation: 1) after an O-shaped ring (21 c) is arranged in a groove (21 d) at the column end of the sealing column body (21) and is confirmed, a radial key body (21 a) is aligned with the radial key openings (14L, 20 j) or the radial key outlet (16 a) to be inserted and is ensured to be meshed in place; 2) the key body bolt (21 m) is aligned with the key body counter sink hole (21 b) and screwed down; 3) the wire (15) in the inspection wire groove 20i, the mounting sealing gasket (16 b) and the bolt fix the wire groove cover (16) through the conical countersunk hole (16 c); 4) the guide bolt hole (20 c) of the torsion bar (20) is axially aligned with the hanging part threaded hole (1 c) of the engine shell (1); 5) checking the clearance and selecting proper gaskets to naturally fill, 6) axially penetrating and positioning through guide bolts (20 m); 7) checking external lead (15) terminals or plugs; 8) the power lead (15) and the corresponding Hall sensor (12 e) signal wire are respectively connected; 9) mounting and fixing a rear wheel brake caliper; 10) the pipeline is connected with a rear wheel brake oil pump; 11) straightening the high-pressure oil pipe and fixing the high-pressure oil pipe on a bracket hole (20 d) to finish installation; e. disassembling and maintaining a rear wheel assembly or a tire: d-11-10, 8-4, 2-1 and c-1 are executed in reverse order to complete the disassembly of the rear wheel.