CN1827467A

CN1827467A - Electric motorcycle/bicycle mid-mounted transmission sensor device

Info

Publication number: CN1827467A
Application number: CNA2006100541775A
Authority: CN
Inventors: 薛荣生; 林毓培
Original assignee: Southwest University
Current assignee: Southwest University
Priority date: 2006-03-31
Filing date: 2006-03-31
Publication date: 2006-09-06
Anticipated expiration: 2026-03-31
Also published as: CN100383013C

Abstract

The invention relates to a middle-arranged transmission sensor of electric motorcycle/bicycle, which comprises a upper box, a lower box, a end cover, a motor, a reducing device matched with motor axle, a middle axle matched with reducing device, a driving taper gear sheathing the middle axle, a driving axle vertical with the middle axle, and the driven taper gear and driven chain wheel that mounted on the driving axle. The invention is characterized in that: the middle axle is mounted with displacement sensing elements; the transmission axle cylinder matched with driving taper gear is arranged outside the middle axle; the displacement transmission elements is at the middle part of transmission axle cylinder; the coupler is at the left part; and the overrun clutch is between the coupler and the reducing element. The invention can synchronously pick the signals of torque and rotational speed in transmission process, to provide real data to the controller, and the torque output by motor can be best matching state with the driving condition. The invention can save electricity and protect accumulator.

Description

Battery-operated motor cycle/bicycle middle drive sensing device

Technical field

The present invention relates to the battery-operated motor cycle parts, be specifically related to battery-operated motor cycle/bicycle middle drive sensing device.

Background technology

Existing battery-operated motor cycle mostly disposes the controller of control motor work.Its controller is directly to adjust electric current and voltage by handle according to driver's manual operation instruction, thereby control motor work.The various instructions that the driver sends are often directly disagreed with the working characteristics in motor speed and optimum efficiency interval, do not conform to simultaneously with the electrochemical discharge characteristic of battery yet yet, only judge and handle according to the experience of oneself, because the people can not in time judge and grasp the speed of elec. vehicle under various complex working conditions, load variations relation exactly, just can not to quicken, slow down, at the uniform velocity, with the wind, against the wind, the variation of underload, middle load, heavy lift, level road, climbing, descending etc. and excessive property carries out accurate appropriate operation.Therefore, this control is inaccurate often, sometimes or even wrong.This is to cause the low and high major cause of repair rate of existing elec. vehicle motor efficiency, also is simultaneously to cause the excessive and deep discharge of the big electric current of storage battery, the key factor that shortens the service life of electrical motor and storage battery.

The problem that existing electric motorcycle motor vehicle drive system exists is: the hub-type motor all is contained in back core wheel portion, make many practicalities and up-to-date technology can't incorporate in the driving system, especially there is not the machine driven system deceleration of fuel motorcycle and automobile most critical to increase the square gearing, the electric power that the capacitance of battery of placing one's entire reliance upon produces overcomes load and resistance, very easily causes the infringement of battery and motor.This is to influence the traveling comfort that battery-operated motor cycle rides, (except that battery) main reason of accelerating ability, thereby dwindle and weakened the function and the range of use of battery-operated motor cycle widely, battery-operated motor cycle is difficult to and similar fuel motorcycle analogy, and maintenance difficult, the cost height.

Summary of the invention

The purpose of this invention is to provide a kind of battery-operated motor cycle/bicycle middle drive sensing device; can be in participating in the process of transmission directly synchronous acquisition moment of torsion and tach signal; for controller timely and accurately the horsepower output at control motor real data are provided, the protection storage battery.

Battery-operated motor cycle of the present invention/bicycle middle drive sensing device, comprise upper box, lower box, end cap, with axis, the sky that end cap bonded assembly motor, the speed reduction gearing that cooperates with motor shaft, an end cooperate with the center gear cover of speed reduction gearing be enclosed within the axis other end the active conical gear, be located on the casing and the axle drive shaft vertical with axis, be located in the middle part of the axle drive shaft and with active conical gear ingear driven bevel gear, be located at the drive sprocket of axle drive shaft one end, the power lead of motor is connected with controller with storage battery.It is characterized in that:

Be provided with the displacement sensing assembly at the middle part of axis, the first sensor of this sensory package is located at the interior right-hand member of first notch on the axis, is provided with surface bearing at the first notch position; First sensitive member of this sensory package is located at the right side of surface bearing, and corresponding with first sensitive member, and the transfer wire of first sensor passes with controller from the centre hole of axis right part and is connected;

Be provided with a transmission beam barrel in the outside of axis, be provided with the displacement transmitting assembly of forming by disk spring, pusher plate and pull back spring at the second notch position at transmission beam barrel middle part; The inwall of transmission beam barrel cooperates with second bearing of clutch shaft bearing that is located at the axis left part and right part, and the right-hand member of transmission beam barrel is connected with the active conical gear;

Left part at the transmission beam barrel is provided with the coupler of being made up of first half a coupler and second half a coupler, and the right part of first half a coupler is provided with trapezoidal engaging tooth, cooperates with the trapezoidal engaging tooth of the second half a coupler left part; Between coupler and speed reduction gearing, be provided with overriding clutch.

Described battery-operated motor cycle/bicycle middle drive sensing device also is provided with the speed sensing assembly of being made up of second sensor and second sensitive member in upper box He on the transmission beam barrel; Second sensor is an opto-electronic pickup, and second sensitive member is the photoelectric reflection plate; The transfer wire of second sensor is connected with controller.

Described middle battery-operated motor cycle drive sensing device, its speed reduction gearing is made up of with both planet gear meshed center gear cover, internally toothed annulus and three.

Described battery-operated motor cycle/bicycle middle drive sensing device is characterized in that: first half a coupler of the outer shroud of overriding clutch and coupler is an one, and its right flank and interior ring and the roller that is located between interior ring and the outer shroud are formed power-transfer clutch more; Three compensating-gear shafts of speed reduction gearing are connected with the interior ring of getting over power-transfer clutch.

Described battery-operated motor cycle/bicycle middle drive sensing device, the locking on the right of the disk spring of its displacement transmitting assembly and the transmission beam barrel near, the left side and an end be connected on second half a coupler pusher plate near; The other end of pusher plate passes first notch at second notch on the transmission beam barrel and axis middle part, is connected with a side of surface bearing, and pull back spring is enclosed within on the axis, between second bearing and surface bearing.

Described battery-operated motor cycle/bicycle middle drive sensing device, the left part of transmission beam barrel outside is provided with six roads, first half-arc groove vertically, and the second half a coupler inwall is provided with six roads, second half-arc groove cooresponding with it vertically; Between cooresponding first half-arc groove of per pass and second half-arc groove, be provided with the steel ball more than 2.Adopt this structure, the transmission beam barrel and second half a coupler are rotated synchronously, sway is neatly transmitted displacement signal again.

Described battery-operated motor cycle/bicycle middle drive sensing device, the first sensor of its displacement sensing assembly is a linear hall sensor, first sensitive member is a magnet steel.

Adopt above structure, can transmit displacement signal and speed signal in participating in the process of transmission directly, what the displacement signal here reflected is the resistance to motion signal.The torque transmission paths of electrical motor output is: motor → center gear cover → planetary wheel → overriding clutch → first half a coupler → second half a coupler → transmission beam barrel → active conical gear → driven bevel gear → axle drive shaft → drive sprocket.

Owing to be provided with steel ball between first half-arc groove outside the transmission beam barrel and second half-arc groove of the second half a coupler inwall, so the transmission beam barrel rotates synchronously with second half a coupler simultaneously; Because the second trapezoidal engaging tooth of the second half a coupler left end cooperates with the first trapezoidal engaging tooth of the first half a coupler right-hand member, so the moment of torsion of electrical motor output and trailing wheel load cross in the cooperation place of first half a coupler and second half a coupler.When going up a slope, resistance to motion increases, if the moment of torsion of electrical motor output is less than the moment of torsion of actual needs, the rotating speed of the rotating speed of motor bike and first half a coupler will be inconsistent, cause the rotating speed of second half a coupler and first half a coupler inconsistent, then move right vertically with its second half a coupler that rotates synchronously, the drive pusher plate moves right and compresses disk spring and pull back spring, distance between the first sensor of the notch right-hand member that is located at first sensitive member on the surface bearing and is located at axis is reduced, the displacement signal that first sensor collects, be the signal of actual needs output torque, and be transferred to controller; Meanwhile, be located at second sensor on the upper box, collect the velocity variations signal of second sensitive member reflection that is located on the transmission beam barrel right-hand member, also be transferred to controller.

After moment of torsion that the controller basis is received and speed signal are handled, send the instruction that increases horsepower output.Power increase in electrical motor output also progressively reaches in the process of actual needs, and pusher plate progressively is moved to the left under the effect of disk spring and pull back spring, recovers original position.So go round and begin again, make the travel conditions of electrical motor output torque and motor bike be in the optimum matching state all the time, thereby embody adaptive characteristics.

Advantage of the present invention is: can be in participating in the process of transmission directly synchronous acquisition moment of torsion and tach signal; for controller timely and accurately the horsepower output at control motor real data are provided; moment of torsion and the travel conditions that electrical motor is exported is in the optimum matching state all the time, rider is comfortable, can also save electric energy and protection storage battery.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is the structural representation of transmission beam barrel.

Fig. 5 is the right elevation of Fig. 4.

Fig. 6 is the structural representation of first half a coupler.

Fig. 7 is the A-A cutaway view of Fig. 6.

Fig. 8 is the structural representation of second half a coupler.

Fig. 9 is the left view of Fig. 8.

The specific embodiment

Below in conjunction with accompanying drawing structure of the present invention is further described.

Referring to Fig. 1 to Fig. 9, driven bevel gear 9 is contained in the middle part of axle drive shaft 8, axle drive shaft 8 is contained on the casing, and drive sprocket 10 is contained in an end of axle drive shaft;

The first sensor 11 (employing linear hall sensor) of displacement sensing assembly is installed in right-hand member in first notch 12 on the axis, surface bearing 13 is contained in the first notch position on the axis, first sensitive member 14 (employing magnet steel) of displacement sensing assembly is installed in the right side of surface bearing, and the transfer wire 15 that makes first sensor passes with controller from the centre hole of axis right part and is connected;

Transmission beam barrel 16 is enclosed within the outside of axis 6, the inwall of transmission beam barrel is cooperated with second bearing 22 of clutch shaft bearing 21 that is located at the axis left part and right part; Initiatively conical gear 7 skies are enclosed within an end of axis 6 and are connected with the right-hand member of transmission beam barrel, initiatively conical gear 7 and driven bevel gear 9 engagements that are contained in axle drive shaft 8 middle parts;

Disk spring 18, the pusher plate 19 of displacement transmitting assembly is installed in second notch, 17 positions at transmission beam barrel middle part, locking 33 on the right of disk spring and the transmission beam barrel near, one end of pusher plate passes second notch 17 on the transmission beam barrel and first notch 12 on the axis, with a side of surface bearing 13 near; Pull back spring 20 is contained on the axis, the permanent seat of an end and first sensitive member 14 near, the other end and second bearing 22 near;

Second half a coupler 24 that left part is provided with trapezoidal engaging tooth cooperates with the left part of transmission beam barrel 16, and at six roads, first half-arc groove 34 and the second half a coupler inwall, six roads vertically second half-arc groove 35 cooresponding with it of transmission beam barrel 16 outsides 3 steel ball 36 is installed respectively; First half a coupler 23 that right part is provided with trapezoidal engaging tooth cooperates with the trapezoidal engaging tooth of second half a coupler, 24 left parts;

First half a coupler 23 of coupler is as the outer shroud of overriding clutch, and the interior ring 30 of its right flank and overriding clutch and the roller 31 that is located between interior ring and the outer shroud are formed power-transfer clutch more;

Speed reduction gearing is formed with both planet gear meshed 29 by being engaged in center gear cover 5 on the motor shaft, internally toothed annulus 28 and three, and three compensating-gear shafts 32 are connected with the interior ring 30 of getting over power-transfer clutch;

Second sensor 25 (employing opto-electronic pickup) of speed sensing assembly is installed in the upper box 1, and second sensitive member 26 of speed sensing assembly (adopting the photoelectric reflection plate) is installed on the transmission cylinder 16, and the transfer wire 27 of second sensor is connected with controller;

Upper box 1 is connected with lower box 2, end cap 3 be connected upper box and with an end of lower box, motor 4 is connected on the end cap 3, the power lead of motor 4 is connected with controller with storage battery and gets final product.

Claims

1. Electric motorcycle/bicycle center-mounted transmission sensor device, including upper box (1), lower box (2), end cover (3), motor (4) connected to the end cover, and motor shaft matched The reduction mechanism, the center shaft (6) with one end matched with the center wheel sleeve (5) of the speed reduction mechanism, the active bevel gear (7) which is empty on the other end of the center shaft, and the drive shaft arranged on the box and perpendicular to the center shaft (8), the driven bevel gear (9) located in the middle of the drive shaft and meshed with the driving bevel gear, the drive sprocket (10) located at one end of the drive shaft, and the power lead of the motor (4) are connected to the battery and the controller . It is characterized by:

A displacement sensing assembly is arranged in the middle of the central shaft (6), and the first sensor (11) of the sensing assembly is arranged at the right end in the first notch (12) on the central shaft, and is provided at the first notch position. There is a plane bearing (13); the first sensing element (14) of the sensing assembly is located on the right side of the plane bearing, and corresponds to the first sensing element, and the transmission wire (15) of the first sensor is connected from the right side of the central shaft The central hole is connected with the controller;

A transmission shaft cylinder (16) is provided outside the center shaft (6), and a disk spring (18), a displacement push plate (19) and a return valve are provided at the second notch (17) in the middle of the transmission shaft cylinder. A displacement transmission assembly composed of springs (20); the inner wall of the transmission shaft cylinder is matched with the first bearing (21) on the left part of the center shaft and the second bearing (22) on the right part, and the right end of the transmission shaft cylinder is connected with the driving bevel gear (7) Mating connection;

A coupling consisting of a first half-coupling (23) and a second half-coupling (24) is provided on the left of the drive shaft cylinder, and trapezoidal meshing teeth are provided on the right of the first half-coupling. Cooperate with the trapezoidal meshing teeth on the left part of the second half coupling; there is an overrunning clutch between the coupling and the reduction mechanism.

2. The mid-mounted transmission sensor device for electric motorcycles/bicycles according to claim 1, characterized in that: a second sensor (25) and a second sensing element ( 26) A speed sensing assembly composed of; the second sensor is a photoelectric sensor, and the second sensing element is a photoelectric reflector; the transmission wire (27) of the second sensor is connected to the controller.

3. The mid-mounted transmission sensor device for electric motorcycles/bicycles according to claim 1 or 2, characterized in that: the reduction mechanism consists of a center wheel sleeve (5), an inner ring gear (28) and three gears meshing with the two Planetary gears (29) form.

4. The electric motorcycle/bicycle mid-mounted transmission sensor device according to claim 1 or 2, characterized in that the outer ring of the overrunning clutch is integrated with the first half coupling (23) of the coupling, and its The right side and the inner ring (30) and the roller (31) between the inner ring and the outer ring form an overrunning clutch; the three planetary gear shafts (32) of the reduction mechanism cooperate with the inner ring (30) of the overrunning clutch connect.

5. The mid-mounted transmission sensor device for electric motorcycles/bicycles according to claim 1 or 2, characterized in that: the right side of the disc spring (18) of the displacement transmission assembly is locked with the locking (33) on the transmission shaft Close to, the left side is close to the displacement push plate (19) that one end is connected on the second half coupling (24); the other end of the displacement push plate passes through the second notch (17) and the middle The first notch (12) in the middle of the shaft is close to one side of the plane bearing (13); the return spring (20) is sleeved on the center shaft and is located between the first bearing (21) and the plane bearing (13) .

6. The middle-mounted transmission sensor device for electric motorcycles/bicycles according to claim 1 or 2, characterized in that: the left part of the outer surface of the transmission shaft cylinder (16) is provided with six first semi-arc grooves ( 34), the inner wall of the second half-coupling (24) is provided with six corresponding second semi-circular grooves (35) along the axial direction; each corresponding first semi-circular groove and second semi-circular groove More than 2 steel balls (36) are arranged between them.

7. The electric motorcycle/bicycle mid-mounted transmission sensor device according to claim 1 or 2, characterized in that: the first sensor (11) of the displacement sensor assembly is a linear Hall sensor, and the first sensor element ( 14) is magnetic steel.