阅读说明：本技术 一种重度混合动力系统及摩托车 (Severe hybrid power system and motorcycle ) 是由 王平 粟强 沈昌群 李江宏 于 2021-09-22 设计创作，主要内容包括：本发明属于摩托车或电动车技术领域,具体涉及一种重度混合动力系统及摩托车,包括：后轮毂,其外圈用于安装轮胎；电机组件,其与所述后轮毂相连且位于后轮毂外侧；连接轴,其一端与所述后轮毂及电机组件相连；发动机,包括壳体,壳体通过所述连接轴与所述后轮毂相连；连接轴在一侧形成有第一连接端,第一连接端伸入所述壳体并通过传递组件连接至发动机；所述第一连接端与传递组件之间设有单向器,单向器上设有锁止机构。该锁止机构能够避免单向器打滑,更好地实现摩托车在爬坡、负重过大、路面状况不好等情况下进行加力。(The invention belongs to the technical field of motorcycles or electric vehicles, and particularly relates to a severe hybrid power system and a motorcycle, which comprise: a rear hub having an outer rim for mounting a tire; the motor assembly is connected with the rear wheel hub and is positioned outside the rear wheel hub; one end of the connecting shaft is connected with the rear wheel hub and the motor assembly; the engine comprises a shell, and the shell is connected with the rear hub through the connecting shaft; the first connecting end is formed on one side of the connecting shaft, extends into the shell and is connected to the engine through the transmission assembly; an isolator is arranged between the first connecting end and the transfer assembly, and a locking mechanism is arranged on the isolator. The locking mechanism can avoid the slip of the isolator, and better realize the stress application of the motorcycle under the conditions of climbing, overlarge load, poor road condition and the like.)

1. A severe hybrid system, comprising:

a rear hub (1) having an outer rim for mounting a tire (10);

the motor assembly is connected with the rear hub (1) and is positioned outside the rear hub (1);

one end of the connecting shaft (2) is connected with the rear hub (1) and the motor assembly;

the engine comprises a shell (3), wherein the shell (3) is connected with the rear hub (1) through the connecting shaft (2);

the connecting shaft (2) is provided with a first connecting end (21) at one side, and the first connecting end (21) extends into the shell (3) and is connected to an engine through a transmission assembly; an isolator is arranged between the first connecting end (21) and the transfer assembly, and a locking mechanism is arranged on the isolator.

2. The severe hybrid power system of claim 1, wherein the one-way clutch comprises an output gear (31), rollers (7), baffles (72) and retainer rings (73), a plurality of wedge-shaped grooves (313) are formed in the inner wall of the output gear (31) at intervals, one roller (7) is arranged in each wedge-shaped groove (313), the rollers (7) can roll along the inner wall of each wedge-shaped groove (313), and the baffles (72) and the retainer rings (73) are respectively arranged at the front end and the rear end of each roller (7).

3. The heavy hybrid system of claim 2, wherein the locking mechanism comprises

A locking coil (81) which is mounted on the housing (3) and is provided with a lead wire which can penetrate out of the housing (3) for electrifying;

and the single locking sheet (82) is positioned on one side of the locking coil (81) and is adsorbed by the locking coil (81) when the locking coil (81) is electrified to generate magnetic force, and a plurality of inserting sheets (83) capable of being inserted into the roller (7) are formed on the single locking sheet (82).

4. The heavy hybrid system according to claim 2 or 3, wherein the transmission assembly comprises an intermediate shaft (32), an intermediate gear (33) and an input shaft (34), the outer periphery of the intermediate shaft (32) is in splined connection with the output gear (31), the intermediate gear (33) is sleeved at one end of the intermediate shaft (32), the outer periphery of one end of the input shaft (34) is in splined connection with the intermediate gear (33), and the other end of the input shaft (34) is connected to the engine crankcase;

the output gear (31) comprises a gear ring part (311) on the outer surface and an inner ring part (312) on the inner side, and the gear ring part (311) is connected with the intermediate shaft (32); the first connecting end (21) is provided with a connecting convex ring (22), the inner ring part (312) is sleeved on the periphery of the connecting convex ring (22), and the roller (7) is arranged between the inner ring part (312) and the connecting convex ring.

5. The heavy hybrid power system according to any one of claims 1 to 3, wherein the motor assembly comprises a stator (41), a motor shaft (42), rotor magnetic steel (43) and a fixing frame (44), the stator (41) is sleeved on the periphery of the motor shaft (42), one end of the motor shaft (42) is connected with the rear hub (1), the rotor magnetic steel (43) is distributed on the outer ring of the stator (41), and the fixing frame (44) is sleeved on the periphery of the rotor magnetic steel (43) and fixed on the outer side of the rear hub (1).

6. The system of claim 5, wherein the rear hub (1) comprises a wheel disc (11) and a wheel rim (12), the outer side of the wheel rim (12) is used for mounting the tire (10), the wheel disc (11) protrudes to one side to form a mounting plane (13), the fixing frame (44) is formed with a connecting ring (441), the connecting ring (441) is connected to the mounting plane (13) through a fastener, and a waterproof pad (45) is pressed between the connecting ring (441) and the mounting plane (13).

7. The heavy hybrid power system as claimed in claim 6, wherein the fixing frame (44) comprises a main body (442), an annular groove (443) is formed in one side of the main body (442), the stator (41) is located in the annular groove (443), a plurality of rotor magnetic steels (43) are distributed on the inner circumferential surface of the annular groove (443), and a gap is formed between the rotor magnetic steels (43) and the outer ring of the stator (41); a through hole (444) for the other end of the motor shaft (42) to pass through is formed in the middle of the main body (442), and a first bearing (51) is arranged between the through hole (444) and the motor shaft (42);

annular groove (443) with main part (442) department of linking up forms annular butt face (445), rotor magnet steel (43) be located annular butt face (445) with between mounting plane (13), and all be equipped with the gasket between rotor magnet steel (43) and mounting plane (13), between rotor magnet steel (43) and annular butt face (445).

8. The severe hybrid power system of claim 7, wherein a mounting hole (14) is formed in the middle of the spoke (11), a mounting groove (421) is formed in one end of the motor shaft (42), the other end of the motor shaft extends out of the fixing frame (44), one end of the connecting shaft (2) extends into the mounting hole (14) and the mounting groove (421) and is connected with the motor shaft (42); a bearing hub (17) is arranged on one side of the mounting hole (14), a second bearing (52) is arranged between the periphery of the motor shaft (42) and the bearing hub (17), and a third bearing (53) is arranged between the connecting shaft (2) and the mounting groove (421).

9. The severe hybrid system according to claim 8, wherein a mounting seat (15) is formed in the middle of the spoke (11), the mounting hole (14) is formed in the middle of the mounting seat (15), a brake disc (6) is connected to one end, away from the motor assembly, of the mounting seat (15), a concave cavity (16) is formed in a side, facing away from the mounting plane (13), of the spoke (11), and the brake disc (6) is located between the housing (3) and the concave cavity (16).

10. A motorcycle comprising a frame, a front wheel and a rear wheel, wherein a heavy hybrid system according to any one of claims 1 to 9 is provided between the rear wheel and the frame.

Technical Field

The invention belongs to the technical field of motorcycles or electric vehicles, and particularly relates to a severe hybrid power system and a motorcycle.

Background

The drive of scooters is usually performed by means of an internal combustion engine, which is arranged on the frame, generally at the front side of the rear wheel, the driving force of which is transmitted to the driven pulley of the clutch through a driving surface connected to the crankshaft and a driving belt, and the driving force is transmitted to the rear wheel by means of the clutch outer hub when it abuts against the clutch driven pulley, and thus by assembling the output shaft of the transmission into the rear wheel.

In general, scooters are mainly used for logistics distribution such as postal distribution, food distribution, and small goods distribution in urban areas or short-distance travel, and conventional scooters use a two-stroke gasoline internal combustion engine or a four-stroke gasoline internal combustion engine as a power source. The internal combustion engine has high power and high torque, so that the motorcycle can easily climb a steep slope.

However, the internal combustion engine is not suitable for use in residential areas such as apartments and residential areas because it emits exhaust gas during gasoline combustion and emits loud noise from the engine when accelerated. The driving surface of a motorcycle includes not only a steep ascending slope but also a flat surface or a descending slope, and most of the driving surfaces of motorcycles actually used for the purposes of short-distance travel, postal delivery, food delivery, small-sized article delivery, and the like in urban areas are flat surfaces and only a part of the driving surfaces are steep ascending slopes or descending slopes. When the internal combustion engine is used to start the scooter running on the above-described running road, unnecessary fuel consumption is caused. This is because the internal combustion engine continues to operate even when the vehicle is traveling on a road surface where a large propulsive force is not required, such as a flat road or a downhill road.

In order to solve the problems, hybrid motorcycles gradually appear in the market, namely, a hub motor is arranged on a rear wheel hub of the motorcycle, power is provided for the motorcycle through a mode that an internal combustion engine and the hub motor are mutually matched, the use frequency of the internal combustion engine is reduced, and therefore unnecessary fuel consumption is reduced. In addition, the severe hybrid power comprises modes of automatic starting and stopping of an engine, regenerative braking, electric assistance, pure electric driving and the like, electric output or fuel power input can be automatically selected according to road conditions, the power of the adopted motor is stronger, and the power requirements of the vehicle during starting and low speed can be completely met. Therefore, the engine of the heavy hybrid vehicle does not need to be started no matter in a starting or low-speed running state, the heavy hybrid vehicle can be completely competent by the motor, and the heavy hybrid vehicle is just like a pure electric vehicle at a low speed. And when the vehicle needs larger driving force under the working conditions of rapid acceleration and climbing operation, the motor and the engine simultaneously provide power for the vehicle. With the progress of the motor and battery technologies, the heavy hybrid system gradually becomes the main development direction of the hybrid technology.

Like chinese utility model publication No. CN212828921U provides an oil-electricity hybrid motorcycle's electric drive structure, it rotates through motor and multistage speed reducer drive rear wheel, nevertheless directly links to each other multistage speed reducer and motor for whole motor structure is complicated, and multistage speed reducer sets up outside at rear wheel and frame, and stability is not high, leads to damaging because of colliding with easily. Also, for example, patent application publication No. CN104163226A discloses a rear wheel motor integrated structure for a hybrid motorcycle, which is similar to a hub motor of an electric vehicle, and the hub motor is directly installed inside the rear wheel, so that although a reduction mechanism is saved, since the hub motor is located inside the wheel, if the hub motor fails, the hub motor is troublesome to disassemble. In addition, under the engine operating condition, when needing the motor element afterburning (like under the circumstances such as climbing, bear a burden excessively, road surface condition is not good), the work of controller control motor element, the rotational speed of motor element should be unanimous with engine speed (referring to the connecting axle), but under general operating condition, the rotational speed of motor element is difficult to accomplish and engine speed (referring to the rotational speed of connecting axle) to be unanimous completely, and when the rotational speed of motor element is higher than engine speed, or when engine speed is unstable to descend, or when the engine reduces the throttle, can appear connecting axle (motor element directly drives) rotational speed this moment and be higher than with the internal tooth's socket of isolator (engine drives) rotational speed, thereby the isolator can produce and skid, and can not play the afterburning effect.

Disclosure of Invention

The invention aims to provide a heavy hybrid power system which is simple in structure, can be driven by a motor and an engine in a combined manner by adding a locking mechanism on an isolator to avoid the slip of the isolator, and a motorcycle using the heavy hybrid power system.

The purpose of the invention is realized as follows:

a severe hybrid system, comprising:

a rear hub having an outer rim for mounting a tire;

the motor assembly is connected with the rear wheel hub and is positioned outside the rear wheel hub;

one end of the connecting shaft is connected with the rear wheel hub and the motor assembly;

the engine comprises a shell, and the shell is connected with the rear hub through the connecting shaft;

the first connecting end extends into the shell and is connected to the engine through the transmission assembly; an isolator is arranged between the first connecting end and the transfer assembly, and a locking mechanism is arranged on the isolator.

Further set up as, the isolator includes output gear, roller, baffle and retaining ring, the output gear inner wall interval is equipped with a plurality of wedge grooves, is equipped with one in every wedge groove the roller, the roller can along the wedge groove inner wall rolls, both ends are equipped with respectively around the roller baffle and retaining ring.

The locking mechanism further comprises a locking coil which is arranged on the shell and is provided with a lead which can penetrate out of the shell to be electrified; and the single locking piece is positioned on one side of the locking coil and is adsorbed by the locking coil when the locking coil is electrified to generate magnetic force, and a plurality of inserting pieces which can be inserted into the roller are formed on the single locking piece.

The transmission assembly further comprises an intermediate shaft, an intermediate gear and an input shaft, wherein the periphery of the intermediate shaft is connected with the output gear through a spline, the intermediate gear is sleeved at one end of the intermediate shaft, the periphery of one end of the input shaft is connected with the intermediate gear through a spline, and the other end of the input shaft is connected to the engine crankcase; the output gear comprises a gear ring part on the outer surface and an inner ring part on the inner side, and the gear ring part is connected with the intermediate shaft; the first connecting end is provided with a connecting convex ring, the inner ring portion is sleeved on the periphery of the connecting convex ring, and the roller is arranged between the inner ring portion and the connecting convex ring.

Further set up as, motor element includes stator, motor shaft, rotor magnet steel and mount, the stator cover is established in the periphery of motor shaft, motor shaft one end with back wheel hub links to each other, and rotor magnet steel distributes at the stator outer lane, the mount cover is established rotor magnet steel periphery is fixed back wheel hub's the outside.

Further set up as, back wheel hub includes spoke and rim, and the rim outside is used for the installation the tire, the spoke forms the mounting surface to one side protrusion, the mount shaping has the go-between, and the go-between is connected through the fastener on the mounting surface and between go-between and the mounting surface press be equipped with waterproof pad.

The fixing frame further comprises a main body, an annular groove is formed in one side of the main body, the stator is located in the annular groove, a plurality of rotor magnetic steels are distributed on the inner circumferential surface of the annular groove, and a gap is formed between the rotor magnetic steels and the outer ring of the stator; a through hole for the other end of the motor shaft to pass through is formed in the middle of the main body, and a first bearing is arranged between the through hole and the motor shaft;

the annular groove with the department that links to each other of main part forms annular butt face, rotor magnet steel be located annular butt face with between the mounting plane, and between rotor magnet steel and mounting plane, all be equipped with the gasket between rotor magnet steel and the annular butt face.

The middle part of the spoke is provided with a mounting hole, one end of the motor shaft is provided with a mounting groove, the other end of the motor shaft extends out of the fixing frame, and one end of the connecting shaft extends into the mounting hole and the mounting groove to be connected with the motor shaft; and a bearing hub is arranged on one side of the mounting hole, a second bearing is arranged between the periphery of the motor shaft and the bearing hub, and a third bearing is arranged between the connecting shaft and the mounting groove.

Further, the third bearing is the same as the first bearing in size and is coaxially arranged.

Further set up as, the spoke middle part forms the mount pad, and the mount pad middle part has been seted up the mounting hole, the mount pad is kept away from motor element's one end is connected with the brake disc, the spoke dorsad the sunken cavity that forms in one side of mounting surface, the brake disc is located between casing and the cavity.

A motorcycle comprises a frame, a front wheel and a rear wheel, wherein the severe hybrid power system is arranged between the rear wheel and the frame.

Compared with the prior art, the invention has the outstanding and beneficial technical effects that:

according to the invention, the locking mechanism is added on the isolator, so that the locking mechanism can prevent the isolator from slipping, and the stress application of the motorcycle under the conditions of climbing, overlarge load, poor road surface condition and the like can be better realized; in addition, the invention can combine the motor drive and the engine drive, can automatically select the electric output or the fuel power input according to the road condition, does not need to start the engine no matter in the starting or low-speed driving state, can completely function by depending on the motor, and is like a pure electric vehicle at low speed; and when the vehicle needs larger driving force under the working conditions of rapid acceleration and climbing operation, the motor and the engine can simultaneously provide power for the vehicle.

The locking mechanism comprises a locking coil and a one-way locking piece, wherein one side of the one-way locking piece can be inserted into the roller of the one-way clutch, and the output gear and the connecting shaft can be locked, so that the output gear and the connecting shaft cannot or cannot easily move relatively.

The rotor magnetic steel of the motor assembly is arranged on the inner side of the fixing frame, so that the fixing frame is driven to rotate when the rotor magnetic steel rotates, the fixing frame is directly connected to the outer side of the rear wheel hub, the rear wheel can rotate along with the fixing frame, the motor drives the rear wheel to rotate, and the fixing frame is directly arranged on the outer side of the rear wheel hub instead of being arranged inside the wheel hub, so that the motor assembly can be easily detached from the rear wheel hub for repair or replacement when the motor assembly breaks down.

The invention relates to a connecting shaft connected with an engine through an output gear, wherein the output gear comprises a gear ring part on the outer surface and an inner ring part on the inner side, the connecting shaft is provided with a connecting ring, the inner ring part is sleeved on the periphery of the connecting ring, a plurality of arc-shaped grooves are arranged on the inner wall of the inner ring part at intervals, each arc-shaped groove is internally provided with a roller, and the rollers can roll along the inner wall of the arc-shaped grooves, so that a one-way bearing connection mode is formed between the connecting shaft and the output gear, the rotating force of the engine can be transmitted to the connecting shaft and transmitted to a rear wheel hub, and the rotating force of a mounting frame of a motor assembly cannot be transmitted to the output gear.

The spoke of the rear wheel hub protrudes towards one side to form a mounting plane, the connecting ring is formed on the fixing frame, the connecting ring is connected to the mounting plane through the fastening piece, and the waterproof pad is arranged between the connecting ring and the mounting plane in a pressing mode, so that rainwater is prevented from entering the interior of the motor assembly to corrode the motor assembly and influence circuit connection, faults are reduced, and the service life is prolonged.

One end of the connecting shaft of the invention directly extends into the mounting groove of the motor shaft for mounting, and meanwhile, a second bearing is arranged between the periphery of the motor shaft and the bearing hub, and a third bearing is arranged between the connecting shaft and the mounting groove, wherein the third bearing has the same size as the first bearing and is coaxially arranged, so that the two ends of the motor shaft are better ensured to keep a straight line all the time in the driving process, thereby stably maintaining the gap between the rotor magnetic steel and the stator and overcoming the problem of the transmission efficiency of the motor.

The side, back to the mounting plane, of the spoke is recessed to form a concave cavity, the brake disc is directly mounted on the wheel hub and located between the shell and the concave cavity, the space is fully utilized, the light weight design of the spoke is achieved, the brake disc and the motor assembly are located on the left side and the right side of the wheel hub respectively, the brake disc cannot be affected when the motor assembly is disassembled, and the disassembly is more convenient.

Drawings

FIG. 1 is a cross-sectional view of a hybrid mechanism of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial enlarged view of FIG. 1 at B;

fig. 4 is a cross-sectional view of an exploded view of the motor assembly of the hybrid mechanism of the present invention;

FIG. 5 is an exploded cross-sectional view of the connecting shaft, rear hub and motor assembly of the hybrid powertrain of the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 1 at C;

FIG. 7 is an enlarged view of a portion of FIG. 5 at D;

FIG. 8 is an exploded view of the connecting shaft and output gear of the hybrid mechanism of the present invention;

fig. 9 is a schematic view of the rear wheel attachment of the motorcycle of the present invention.

In the figure: 1-a rear hub; 10-a tyre; 11-spokes; 12-a rim; 13-mounting plane; 14-mounting holes; 15-a mounting seat; 16-a cavity; 17-a bearing hub; 2-a connecting shaft; 21-a first connection end; 22-connecting convex ring; 3-a shell; 31-an output gear; 311-a race portion; 312-an inner ring portion; 313-an arc-shaped slot; 32-intermediate shaft; 33-intermediate gear; 34-an input shaft; 41-a stator; 42-motor shaft; 421-a mounting groove; 43-rotor magnetic steel; 44-a fixed mount; 441-a connecting ring; 442-a body; 443-an annular groove; 444-through holes; 445-an annular abutment face; 45-waterproof pad; 46-a winding; 47-power line; 48-threading channel; 51-a first bearing; 52-a second bearing; 53-a third bearing; 6, a brake disc; 7-a roller; 71-a gasket; 72-a baffle; 73-a retainer ring; 81-a locking coil; 82-a single-item locking piece; 83-an insert sheet; 9-power connecting plate.

Detailed Description

The invention will now be further described in the following with reference to specific embodiments, with reference to fig. 1-9:

a motorcycle comprises a frame, a front wheel and a rear wheel, wherein a severe hybrid power system is arranged between the rear wheel and the frame. The severe hybrid system includes: the rear wheel comprises a rear wheel hub 1, a motor assembly and an engine, wherein the outer ring of the rear wheel hub is used for mounting a tire 10 to form the rear wheel, the motor assembly is connected to the outer side of the rear wheel hub 1, the engine is connected with the rear wheel hub 1 and the motor assembly through a connecting shaft 2, the engine comprises a shell 3, a transmission assembly and an output gear 31 are arranged in the shell 3, one end of the connecting shaft 2 extends into the shell 3 to be connected with the output gear 31, and the output gear 31 is connected to an engine crankcase through the transmission assembly, so that when the engine works, driving force is transmitted to the connecting shaft 2 through the crankcase and then transmitted to the rear wheel hub 1 to drive the wheel to rotate.

The motor assembly comprises a stator 41, a motor shaft 42, rotor magnetic steel 43 and a fixing frame 44, wherein the stator 41 is sleeved on the periphery of the motor shaft 42, a stator winding 46 is wound on the stator 41, a power line 47 is connected to the stator winding 46, a threading channel 48 is formed in the motor shaft 42, the threading channel 48 directly passes through the outer end of the motor shaft, the power line 47 is installed in the threading channel 48, and the outer end of the power line is penetrated out of the threading channel 48 and connected to an external power supply. The threading channel is directly arranged in the motor shaft, so that reasonable wiring can be realized, and the situations that the power line is exposed and damped can be prevented. One end of the motor shaft 42 is connected with the rear hub 1, the rotor magnetic steel 43 is distributed on the outer ring of the stator 41, and the fixing frame 44 is sleeved on the periphery of the rotor magnetic steel 43 and fixed on the outer side of the rear hub 1. The fixed mount 44 is directly fixed to the outer side of the rear hub 1 to form a cover, and the stator 41 and the rotor magnetic steel 43 are covered between the fixed mount and the rear hub 1.

The rear wheel hub 1 comprises a wheel disc 11 and a wheel rim 12, the outer side of the wheel rim 12 is used for mounting the tire 10, the wheel disc 11 protrudes towards one side to form a mounting plane 13, the fixing frame 44 is formed with a connecting ring 441, the connecting ring 441 is connected to the mounting plane 13 through a fastener (such as a bolt and other conventional connecting pieces) and a waterproof pad 45 is arranged between the connecting ring 441 and the mounting plane 13 in a pressing mode, the motor assembly is located on the outer side of the rear wheel hub 1, so that rainwater can enter the motor assembly along a gap at the connecting position of the fixing frame and the wheel disc to avoid affecting the motor assembly, the waterproof pad is additionally arranged at the connecting position of the fixing frame and the wheel disc, and the assembly is protected. And in the use, if motor element broke down, can directly dismantle the fastener to dismantle the mount, so that directly detect or dismantle inside motor element.

Specifically, the fixing frame 44 includes a main body 442, an annular groove 443 is formed in one side of the main body 442, the stator 41 is located in the annular groove 443, a plurality of rotor magnetic steels 43 are distributed on an inner circumferential surface of the annular groove 443, and a gap is formed between the rotor magnetic steels 43 and an outer ring of the stator 41; a through hole 444 for the other end of the motor shaft 42 to pass through is formed in the middle of the main body 442, and a first bearing 51 is arranged between the through hole 444 and the motor shaft 42; the first bearing 51 is provided with a gasket and an oil seal 54 on the outer side.

The annular groove 443 is connected with the main body 442 to form an annular abutting surface 445, the rotor magnetic steel 43 is located between the annular abutting surface 445 and the installation plane 13, gaskets 71 are arranged between the rotor magnetic steel 43 and the installation plane 13 and between the rotor magnetic steel 43 and the annular abutting surface 445, the annular abutting surface 445 and the installation plane 13 limit the front end face and the rear end face of the rotor magnetic steel 43, the position deviation of the rotor magnetic steel 43 in the rotating process is avoided, and the stability is improved.

As shown in fig. 1, 3 and 5, the spoke 11 is provided with a mounting hole 14 at the middle part, one end of the motor shaft 42 is provided with a mounting groove 421, the other end extends out of the fixing frame 44 to be connected to a power connection plate 9 (shown in fig. 9) of the motorcycle, and one end of the connecting shaft 2 extends into the mounting hole 14 and the mounting groove 421 to be connected with the motor shaft 42; a bearing hub 17 is arranged on one side of the mounting hole 14, a second bearing 52 is arranged between the periphery of the motor shaft 42 and the bearing hub 17, and a third bearing 53 is arranged between the connecting shaft 2 and the mounting groove 421.

As shown in fig. 1, the third bearing 53 is the same size as the first bearing 51 and is coaxially disposed. So set up and guaranteed the both ends of motor shaft better and keep a straight line all the time at the in-process of traveling to can maintain the clearance between rotor magnet steel and the stator steadily, with the problem of overcoming motor transmission efficiency. (if the gap between the rotor magnetic steel and the stator cannot be maintained stably, not only is it difficult to maintain the rotation of the motor unit continuously, but also the motor torque obtained is significantly reduced with respect to the power consumed even when the motor unit is continuously rotated, thereby causing a problem of efficiency reduction.)

The middle part of the spoke 11 forms a mounting seat 15, the middle part of the mounting seat 15 is provided with a mounting hole 14, the mounting seat 15 is far away from one end of the motor assembly is connected with a brake disc 6, the spoke 11 faces away from one side of the mounting plane 13 and is sunken to form a concave cavity 16, and the brake disc 6 is located between the shell 3 and the concave cavity 16. The design of the cavity 16 not only can realize light weight of the hub and reduce cost, but also can make room for installing the brake disc 6, so that the structure is more compact. As shown in figures 1 and 5, the brake disc and the motor assembly are respectively positioned at the left side and the right side of the rear wheel hub instead of directly installing the brake disc on the motor shaft like the traditional method, so that fewer parts are only required to be disassembled when the motor assembly breaks down, the brake disc cannot be influenced, and the structure is more reasonable.

The connecting shaft 2 is formed with a first connecting end 21 at one side, the first connecting end 21 extending into the housing 3 and being connected to the clutch through a transmission assembly. And a one-way clutch is arranged between the first connecting end 21 and the transfer component, and comprises an output gear 31, a roller 7, a baffle plate 72 and a retainer ring 73. The transmission assembly comprises an intermediate shaft 32, an intermediate gear 33 and an input shaft 34, teeth meshed with the outer ring of the output gear 31 are arranged on the periphery of the intermediate shaft 32, the intermediate gear 33 is sleeved at one end of the intermediate shaft 32, teeth meshed with the intermediate gear 33 are arranged on the periphery of one end of the input shaft 34, and the other end of the input shaft 34 is connected to the engine crankcase.

The output gear 31 comprises a ring gear part 311 on the outer surface and an inner ring part 312, and the ring gear part 311 is connected with the intermediate shaft 32; the first connecting end 21 is provided with a connecting convex ring 22, the inner ring portion 312 is sleeved on the periphery of the connecting convex ring 22, a plurality of wedge-shaped grooves 313 are formed in the inner wall of the inner ring portion 312 at intervals, each wedge-shaped groove 313 is internally provided with one roller 7, the rollers 7 can roll along the inner wall of each wedge-shaped groove 313, the front end and the rear end of each roller 7 are respectively provided with the baffle plate 72 and the retainer ring 73, the front end and the rear end of each roller 7 are limited, the rollers 7 are prevented from falling out, and the structural stability is improved; in addition, as shown in fig. 6, the first connecting end 21 is protruded outward to form a stop 23 near the connecting convex ring 22, and the retainer ring 73 abuts against the stop 23, thereby further limiting the installation of the roller. The roller 7 can rotate in one direction in the wedge-shaped groove 313 to form a one-way gear, the structure can transmit the rotating force of the engine to the connecting shaft and to the rear wheel hub, but the rotating force of the mounting rack of the motor assembly can not be transmitted to the output gear, namely, the invention can not be transmitted to the engine when the motor assembly is used for driving and driving, so that the load of the motor assembly is minimized, and the driving force of the motor assembly is only used for driving the rear wheel, thereby improving the electric efficiency of the hybrid motorcycle.

Under the working state of the engine, when the force is applied to the motor assembly (such as climbing, too large load, bad road condition and the like), the controller controls the motor assembly to work, and the rotating speed of the motor assembly is consistent with the rotating speed of the engine (which refers to a connecting shaft), but under the general working state, the rotating speed of the motor assembly cannot be completely consistent with the rotating speed of the engine (which refers to the rotating speed of the connecting shaft). When the rotating speed of the motor assembly is higher than the rotating speed of the engine, or the rotating speed of the engine is unstable and reduced, or the engine reduces the accelerator, the rotating speed of the connecting shaft (directly driven by the motor assembly) is higher than the rotating speed of the wedge-shaped groove gear (driven by the engine), so that the isolator can slip and cannot exert a force application effect. In order to avoid the above situation, the present embodiment is characterized in that a locking mechanism is added to the one-way clutch.

As shown in fig. 1, 6 and 7, the locking mechanism includes a locking coil 81, a single locking piece 82 and a wear pad 84, the locking coil 81 is mounted on the housing 3 and is provided with a conducting wire that can pass through the housing 3 for conducting electricity; the single locking sheet 82 is positioned on one side of the locking coil 81, when the locking coil 81 is electrified to generate magnetic force, the single locking sheet 82 is adsorbed by the locking coil 81, and a plurality of insertion sheets 83 which can be inserted into the roller 7 are formed on the single locking sheet 82; the antifriction pad 84 is located between the housing 3 and the output gear 31. When starting the afterburning, put through the locking coil simultaneously, produce magnetic force after the locking coil circular telegram, adsorb the unidirectional locking piece, make the unidirectional locking piece produce the resistance because of adsorbing and can produce the hysteresis trend relatively output gear 31, because the card of unidirectional locking piece is inserted in the roller hole, will make the roller can not (or can not easily) slide (can not/be difficult for producing and skidding) to the main aspects from the taper groove tip because of the connecting axle rotational speed is higher than with the wedge gear rotational speed like this, play the locking (be about to taper groove gear and connecting axle locking, be unlikely or not produce relative motion easily) and act on. (the isolator can generate slip and cannot exert the force)

The housing 3 and the internal gears and shafts essentially form a reducer, and the operation of the gears causes the lubricating oil inside the housing to splash, thereby lubricating the various parts. A compact oil film layer is formed on the inner wall of the shell 3, when the single locking piece 82 is adsorbed and attached to the inner wall of the shell 3, the single locking piece 82 slides on the oil film layer on the surface of the shell 3, only a small resistance is generated, and the resistance can enable the one-way locking piece to generate a lagging trend relative to the output gear 31, so that stable transmission among the roller 7, the output gear 31 and the connecting shaft 2 is ensured; at the same time, this resistance does not cause wear between the single-phase locking piece 82 and the housing 3.

The wedge-shaped groove 313 is obliquely arranged, when the output gear 31 runs at a high speed, a speed difference is formed between the output gear 31 and the connecting shaft 2, the roller 7 is extruded to the side wall of the connecting shaft 2 by the wedge-shaped groove 313, and transmission is naturally formed among the roller 7, the output gear 31 and the connecting shaft 2;

in addition, the locking mechanism is not normally open, and can be set in a control program, and can be set to be opened only in the scenes of heavy current and low speed, such as sudden acceleration or sudden deceleration, climbing and the like.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.