CN219077405U - Driving device capable of measuring physical energy consumption for electric auxiliary power assisting bicycle - Google Patents

Abstract

The utility model relates to a driving device for an electric auxiliary power-assisted bicycle capable of measuring physical energy consumption, and belongs to the field of electric auxiliary power-assisted bicycles. The utility model comprises a center shaft, a motor output shaft and a tooth disc, wherein the motor output shaft is arranged on the motor, and the structure is characterized in that: the novel gear wheel type torque sensor comprises a motor output shaft, a nylon bevel gear, a shaft type isolator, a shaft type torque sensor, a ratchet wheel, a pawl, a nylon bevel gear and a shaft type bevel gear, wherein the motor output shaft is meshed with the nylon bevel gear, the shaft type isolator is installed in the nylon bevel gear, the shaft type isolator is sleeved on a gear shaft of the shaft type bevel gear, the shaft type bevel gear is connected with the spoke type torque sensor, the ratchet wheel and the toothed disc are installed on the spoke type torque sensor, the fixed end of the shaft type torque sensor is installed on a central shaft, the pawl is installed at the free end of the shaft type torque sensor, and the pawl is matched with the ratchet wheel.

Description

Driving device capable of measuring physical energy consumption for electric auxiliary power assisting bicycle

Technical Field

The utility model relates to a driving device for an electric auxiliary power-assisted bicycle capable of measuring physical energy consumption, and belongs to the field of electric auxiliary power-assisted bicycles.

Background

The pedal electric auxiliary booster bicycle is an innovative intelligent booster bicycle, when a person rides the pedal to exert force, the existence, the non-existence, the large and the small of the pedal force are detected through a torque sensor arranged at the pedal or a rotation stressed part, then the detected human signals are converted into electric signals and sent to a vehicle-mounted controller, the controller controls and drives a vehicle-mounted motor to rotate, a sprocket or a chain is dragged, and the bicycle in riding is driven by electric power, particularly riding on an ascending slope, so that the effect of greatly reducing the human effort can be achieved.

Like this kind of booster bicycle, it is first to start riding with the manpower pedal, from starting riding, on-vehicle moment sensor just at any time the car, wherever possible detects the intensity of manpower trampling force to turn into corresponding signal of telecommunication and go controller control motor output helping hand intensity, the intensity of manpower trampling force and motor output helping hand intensity are proportional relation.

The riding mode is mainly by manpower, the riding mode assisted by motor power is a human-electric hybrid power riding mode, and in the human-electric hybrid power riding mode, the power generated by the human riding cannot be distinguished and expressed by the power output by motor power; some of the current electric bicycle lovers and pedal electric bicycle research developers, including professional bicycle sports trainers, desire such bicycles.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the driving device for the electric auxiliary power assisted bicycle, which has reasonable structural design, can collect and distinguish the two mixed forces of the pedal force of a person and the mechanical force of the electric auxiliary power assisted bicycle by using two moment sensors with different structural forms in the process of pedal by manpower and riding by using electric auxiliary power, converts the pedal force of the person into the power to be performed or the energy of the person to be consumed in riding, and displays the measurable energy consumption in a digital quantized form.

The utility model solves the problems by adopting the following technical scheme: this driving device for electric auxiliary power assisted bicycle of measurable quantity physical stamina consumption, including axis, motor output shaft and tooth dish, motor output shaft sets up on the motor, its structural feature lies in: the novel gear wheel type torque sensor comprises a motor output shaft, a nylon bevel gear, a shaft type isolator, a shaft type torque sensor, a ratchet wheel, a pawl, a nylon bevel gear and a shaft type bevel gear, wherein the motor output shaft is meshed with the nylon bevel gear, the shaft type isolator is installed in the nylon bevel gear, the shaft type isolator is sleeved on a gear shaft of the shaft type bevel gear, the shaft type bevel gear is connected with the spoke type torque sensor, the ratchet wheel and the toothed disc are installed on the spoke type torque sensor, the fixed end of the shaft type torque sensor is installed on a central shaft, the pawl is installed at the free end of the shaft type torque sensor, and the pawl is matched with the ratchet wheel. The driving device can be used for realizing one-vehicle multifunctional application, namely, the driving device is used as a usual commuting vehicle, and the human and electric hybrid power is used for commuting, so that the driving device is labor-saving, quick and safe; can also be used as riding sports equipment for body exercise.

Further, still include magnetic ring, amplifier circuit board first, sliding ring first, hall signal board, strain gauge first, controller and converting circuit, the strain gauge first is pasted on shaft type torque sensor, the strain gauge first is connected with amplifier circuit board first, amplifier circuit board first is connected with the sliding ring first, the sliding ring first is connected with hall signal board, hall signal board is connected with converting circuit, the magnetic ring cooperates with hall signal board, and the stiff end at shaft type torque sensor is installed to the magnetic ring, the sliding ring first suit is epaxial, the detection circuitry that the strain gauge first constitutes is connected with the controller, the controller is connected with the motor. The detection circuit composed of the strain gauge nails stuck on the shaft type moment sensor converts the sensed physical quantity deformation into an electric quantity signal, the electric signal is amplified by the amplifying circuit board A, the human stepping force data signal is transmitted from the shaft rotating body after passing through the slip ring A and the Hall signal board, the human stepping force data signal is transmitted from the rotating body and is sent to the conversion circuit for carrying out human stepping work or human energy consumption quantization processing and data displaying and other works.

Further, the strain gauge comprises an amplifying circuit board B, a slip ring B, a strain gauge B and an amplifying circuit board C, wherein the strain gauge B is adhered to the spoke type torque sensor, the strain gauge B is connected with the amplifying circuit board C, the amplifying circuit board C is connected with the slip ring B, the slip ring B is connected with the amplifying circuit board B, and the amplifying circuit board B is connected with the conversion circuit. The mechanical deformation of the spoke causes strain gauge B attached on the spoke to generate strain, a measuring circuit composed of N strain gauges B converts sensed physical quantity change signals into electric signals through an amplifying circuit board C, the electric signals in the rotating body are output to the amplifying circuit board B outside the rotating body through a slip ring B, and finally dynamic power signals of motor driving assistance obtained through the way are sent to a converting circuit, so that dynamic power driving values of a motor can be displayed independently.

Further, the novel rolling bearing comprises a rolling bearing A, a sealing plate, a rolling bearing B, a bearing B seat, a housing, a shell, a bearing C seat, a rolling bearing D, a housing disc, a rolling bearing E, a bearing E fixing cover, a rolling bearing F and a rolling bearing G, wherein the bearing B seat, the housing and the bearing C seat are all arranged in the shell, a Hall signal plate is arranged in the housing, the rolling bearing A is arranged between a shaft type moment sensor and the housing, the sealing plate is arranged on the housing, the rolling bearing B is arranged between the bearing B seat and a middle shaft, the rolling bearing D is arranged between a spoke type moment sensor and the middle shaft, the rolling bearing E is arranged between the shaft type moment sensor and the bearing E fixing cover, the rolling bearing F is arranged between the shaft type moment sensor and the bearing C seat, the rolling bearing G is arranged on a gear shaft of a bevel gear, and the housing disc is arranged on the spoke type moment sensor.

Further, the fixed end of the shaft type moment sensor is arranged on the center shaft through threads, and the free end of the shaft type moment sensor is in a suspended state.

Further, spoke formula torque sensor includes wheel hub, rim and spoke, spoke sets up between wheel hub and rim, the ratchet is installed to wheel hub's inner chamber, the tooth dish is installed in wheel hub's outside, the outer lane of rim is provided with outer helical gear, it has the strain gauge second to bond on the spoke.

Further, the shaft type moment sensor and the spoke type moment sensor are both of elastomer structures.

Further, the ratchet is in an annular structure, the outer ring of the ratchet is arranged on the hub, and the inner ring of the ratchet is provided with a toothed structure matched with the pawl.

Compared with the prior art, the utility model has the following advantages: the driving device for the electric auxiliary power-assisted bicycle with the measurable physical energy consumption can realize the multifunctional application of the bicycle, namely, the driving device can be used as a usual commuting bicycle, and is a human-electric hybrid power, labor-saving, quick and safe in commuting; the bicycle can also be used as a riding sports tool for body exercise, and in the riding process, the amount of the human power to be stepped on and the amount of the energy consumed by the human body can be expressed on line in an energy consumption mode at any time and any place, so that a user with a demand can know and master the actual physical energy consumption of the user; the manpower kinetic energy in the hybrid power is stripped in the motion process, so that the motion state quantization parameter can be more accurate and more accordant, the bicycle is more comfortable, the motor is more power-saving in operation, and the motor is more stable.

Drawings

Fig. 1 is a schematic structural view of a driving apparatus for an electric assist bicycle capable of measuring energy consumption according to an embodiment of the present utility model.

In the figure: the device comprises a rolling bearing A1, a magnetic ring 2, an amplifying circuit board A3, a slip ring A4, a sealing plate 5, a rolling bearing B6, a bearing B seat 7, a central shaft 8, a Hall signal plate 9, a housing 10, a motor 11, a shaft type isolator 12, a housing 13, a shaft type moment sensor 14, a strain gauge A15, a bearing C seat 16, an amplifying circuit board B17, a spoke type moment sensor 18, a slip ring B19, a strain gauge B20, a ratchet 21, an amplifying circuit board C22, a pawl 23, a rolling bearing D24, a housing disk 25, a rolling bearing E26, a bearing E fixing cover 27, a rolling bearing F28, a nylon bevel gear 29, a shaft type bevel gear 30, a rolling bearing G31, a motor output shaft 32, a tooth disk 33, a controller 34 and a conversion circuit 35.

Detailed Description

The present utility model will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present utility model and not limited to the following examples.

Examples

Referring to fig. 1, it should be understood that the structures, proportions, sizes, etc. shown in the drawings attached hereto are merely used in conjunction with the disclosure of the present specification and should not be construed as limiting the scope of the present utility model, which is defined by the appended claims, and any structural modifications, proportional changes, or adjustments of size, which may fall within the scope of the present disclosure without affecting the efficacy or achievement of the present utility model. In the meantime, if the terms such as "upper", "lower", "left", "right", "middle" and "a" are used in the present specification, they are merely for convenience of description, but are not intended to limit the scope of the present utility model, and the relative relation changes or modifications are considered to be within the scope of the present utility model without substantial modification of the technical content.

The driving device for the electric auxiliary power assisted bicycle capable of measuring physical energy consumption in the embodiment comprises a rolling bearing A1, a magnetic ring 2, an amplifying circuit board A3, a slip ring A4, a sealing plate 5, a rolling bearing B6, a bearing B seat 7, a central shaft 8, a Hall signal board 9, a housing 10, a motor 11, a shaft type isolator 12, a shell 13, a shaft type torque sensor 14, a strain gauge A15, a bearing C seat 16, an amplifying circuit board B17, a spoke type torque sensor 18, a slip ring B19, a strain gauge B20, a ratchet 21, an amplifying circuit board C22, a pawl 23, a rolling bearing D24, a housing disk 25, a rolling bearing E26, a bearing E fixing cover 27, a rolling bearing F28, a bevel gear 29, a shaft type bevel gear 30, a rolling bearing G31, a motor output shaft 32, a tooth disk 33, a controller 34 and a conversion circuit 35.

The motor output shaft 32 in this embodiment is disposed on the motor 11, the motor output shaft 32 is meshed with the nylon bevel gear 29, the shaft type isolator 12 is installed in the nylon bevel gear 29, the shaft type isolator 12 is sleeved on the gear shaft of the shaft type bevel gear 30, the shaft type bevel gear 30 is connected with the spoke type moment sensor 18, the spoke type moment sensor 18 is provided with the ratchet 21 and the tooth disc 33, the fixed end of the shaft type moment sensor 14 is mounted on the center shaft 8 through threads, the free end of the shaft type moment sensor 14 is in a suspended state, the free end of the shaft type moment sensor 14 is provided with the pawl 23, the pawl 23 is matched with the ratchet 21, the ratchet 21 is in an annular structure, the outer ring of the ratchet 21 is disposed on the hub, and the inner ring of the ratchet 21 is provided with a toothed structure matched with the pawl 23.

The strain gauge armor 15 in this embodiment is adhered to the axial torque sensor 14, the strain gauge armor 15 is connected with the amplifying circuit armor 3, the amplifying circuit armor 3 is connected with the slip ring armor 4, the slip ring armor 4 is connected with the hall signal plate 9, the hall signal plate 9 is connected with the converting circuit 35, the magnetic ring 2 is matched with the hall signal plate 9, the magnetic ring 2 is installed at the fixed end of the axial torque sensor 14, the slip ring armor 4 is sleeved on the center shaft 8, the detecting circuit formed by the strain gauge armor 15 is connected with the controller 34, and the controller 34 is connected with the motor 11.

The strain gauge b 20 in this embodiment is stuck on the spoke type torque sensor 18, the strain gauge b 20 is connected with the amplifying circuit board c 22, the amplifying circuit board c 22 is connected with the slip ring b 19, the slip ring b 19 is connected with the amplifying circuit board b 17, and the amplifying circuit board b 17 is connected with the conversion circuit 35.

In this embodiment, the bearing B seat 7, the cover 10 and the bearing C seat 16 are all installed in the housing 13, the hall signal plate 9 is installed in the cover 10, the rolling bearing A1 is installed between the shaft type torque sensor 14 and the cover 10, the baffle plate 5 is installed on the cover 10, the rolling bearing B6 is installed between the bearing B seat 7 and the center shaft 8, the rolling bearing D24 is installed between the spoke type torque sensor 18 and the center shaft 8, the rolling bearing E26 is installed between the shaft type torque sensor 14 and the bearing E fixing cover 27, the rolling bearing F28 is installed between the shaft type torque sensor 14 and the bearing C seat 16, the rolling bearing G31 is installed on the gear shaft of the shaft type helical gear 30, and the cover plate 25 is installed on the spoke type torque sensor 18.

The shaft type moment sensor 14 and the spoke type moment sensor 18 in the embodiment are both of elastomer structures, the spoke type moment sensor 18 comprises a hub, a rim and spoke strips, the spoke strips are arranged between the hub and the rim, a ratchet wheel 21 is installed in an inner cavity of the hub, a toothed disc 33 is installed on the outer side of the hub, an outer helical gear is arranged on the outer ring of the rim, and a strain gauge B20 is bonded on the spoke strips.

Specifically, the motor output shaft 32 of the motor 11 is anastomotic with the nylon bevel gear 29, the nylon bevel gear 29 is internally provided with a shaft type isolator 12, the inner hole of the shaft type isolator 12 is provided with a gear shaft of the shaft type isolator 30, the shaft type isolator 30 is anastomotic with the outer bevel gear arranged on the spoke type torque sensor 18, after the shaft type isolator 12 is arranged in the nylon bevel gear 29, the power output of the motor 11 accords with the rotation of the spoke type torque sensor 18 in the clock pointer rotation direction, so that a tooth disc 33 arranged on the spoke type torque sensor 18 drags a chain to rotate to drive the rear wheel of the bicycle, the tooth disc 33 can drive the spoke type torque sensor 18 to rotate along with the shaft type isolator 30 when rotating reversely, but the shaft type isolator 12 is arranged at the nylon bevel gear 29, the phenomenon of free idle is generated, and the influence of the reverse rotation of the tooth disc 33 on the motor 11 is blocked.

The cavity of the spoke type moment sensor 18 is internally provided with a set of ratchet pawl transmission structure, the outer ring of the ratchet 21 is fixedly arranged on the inner wall of the cavity of the spoke type moment sensor 18, the pawl 23 is fixedly arranged on the shaft type moment sensor 14, the working principle of the combined structure is also equivalent to that of a one-way device, namely when the bicycle pedals the middle shaft 8, the middle shaft 8 rotates in the clock pointer rotating direction (seen from the right foot toothed disc direction), the ratchet 21 and the pawl 23 are mutually matched, at the moment, the rotation of the middle shaft 8 drives the spoke type moment sensor 18 to rotate clockwise through the engagement of the ratchet 21 and the pawl 23, the toothed disc 33 is arranged on the spoke type moment sensor 18, namely, the toothed disc 33 rotates clockwise to drive the chain on the toothed disc 33 to rotate, the rear wheel is dragged to finish the pedal on the pedal crank to enable the middle shaft 8 to rotate, the toothed disc 33 and the chain to rotate, and the rear wheel of the bicycle to drag the riding process. If the middle shaft 8 stops rotating without stepping on, or the middle shaft 8 is reversed, at this time, because the structures of the ratchet wheel 21 and the pawl 23 also belong to the principle of a one-way device, a sliding gear generated between the ratchet wheel 21 and the pawl 23 can not be meshed during reverse rotation, and the spoke type moment sensor 18 can not be driven to rotate along with the sliding gear, but the middle shaft 8 is reversed.

As can be seen from fig. 1, two torque sensors with different structural forms, namely, an axial torque sensor 14 and a spoke type torque sensor 18, are assembled on the central shaft 8, and the assembled structural installation forms of the two torque sensors respectively bear the functions of collecting the existence and the magnitude of manpower and mechanical force, namely, the axial torque sensor 14 bears the existence, the magnitude and the small signal collection of pedal force, and the spoke type torque sensor 18 bears the signal collection of existence, the magnitude and the small signal collection of electric power output by the motor 11, and the working principle is as follows:

the pedal center shaft 8 of the bicycle is provided with a shaft type moment sensor 14, the shaft type moment sensor 14 is in a tubular cylindrical shape, one end of the shaft type moment sensor 14 is fastened on the center shaft 8 in a threaded structure to be called a fixed end, the other end of the elastic body is in a free suspension state to be called a free end, a pawl 23 is fixedly arranged at the free end, and an outer ring of a ratchet wheel 21 fixed in a cavity of the spoke type moment sensor 18 is correspondingly matched with the pawl 23. When the pedal mounted on the center shaft 8 is stepped by manpower to rotate the center shaft 8 in a clockwise direction (seen from the right side of the mounting dental disc), the pawl 23 mounted on the free end of the axial type moment sensor 14 mounted on the center shaft 8 is matched with the ratchet 21 fixed in the cavity of the spoke type moment sensor 18 to drive the spoke type moment sensor 18 to synchronously rotate, and the dental disc 33 is fixed on the spoke type moment sensor 18 to synchronously drive the dental disc 33 to rotate when the spoke type moment sensor 18 rotates, and the dental disc 33 is hung with a chain to directly pull the rear wheel of the bicycle, so that when the human foot steps to rotate the center shaft 8, the axial type force transmission relation of the primary axial type force eats force on the rear wheel of the dragging bicycle, and the dragging force feedback results in torsion force aiming at the moment sensor 14 at the free end of the moment sensor 14. The reason is that, because the center shaft 8 rotates clockwise by manual stepping, the fixed end of the shaft type torque sensor 14 fixedly mounted on the center shaft 8 rotates synchronously with the center shaft 8, and is also stressed synchronously, namely, is stressed synchronously, the free end of the shaft type torque sensor 14 is fed back to the free end of the shaft type torque sensor 14 through the transmission chain relation of the forces such as the ratchet 21, the pawl 23, the spoke type torque sensor 18 and the tooth disc 33 mounted on the spoke type torque sensor 18, the force fed back to the free end of the shaft type torque sensor 14 is exactly opposite to the rotating force of the center shaft 8 by human feet, then the physical phenomenon of torsional deformation occurs on the shaft type torque sensor 14, the fixed end which is in threaded connection with the center shaft 8 as the shaft type torque sensor 14 rotates clockwise along with the center shaft 8, and the free end of the shaft type torque sensor 14 is stressed by the force in the counterclockwise rotating direction fed back, and as a result, the distortion of the elastic body is generated on the free end of the shaft type torque sensor 14, at this time, the strain gauge 15 attached to the shaft type torque sensor 14 senses the physical change of the elastic body distortion, and the physical change of the elastic body distortion is sensed by the strain gauge 15, and the strain gauge 15 is converted into the electric quantity of the elastic body by the measuring circuit.

The acquisition of the treading force of the person is obtained through the shaft type moment sensor 14, namely a detection circuit formed by a strain gauge armor 15 stuck on the shaft type moment sensor 14 converts the deformation of the sensed physical quantity into an electric quantity signal, the electric signal is amplified through an amplifying circuit armor 3, a treading force data signal is transmitted from a rotator of a middle shaft 8 after passing through a slip ring armor 4 and a Hall signal plate 9, the treading force data signal transmitted from the rotator is sent to a conversion circuit 35 for carrying out the work of treading by the person or the work of quantifying the physical energy consumption of the person and displaying data, and the conversion circuit 35 is a moment-power conversion circuit.

As riding, the physical energy consumption of a person is related to the speed of riding and the time of riding, namely, the data acquisition of the speed and the time of pedaling by feet is completed by combining the magnetic ring 2 and the Hall signal plate 9, a plurality of pairs of N, S poles are uniformly distributed on the magnetic ring 2 and fixedly arranged on the middle shaft 8, the Hall signal plate 9 is fixedly arranged on the housing 10 along with the synchronous rotation of the middle shaft 8, the housing 10 is fixedly arranged on the shell 13, the speed of pedaling by manpower, namely, the speed and the time of synchronous rotation of the magnetic ring 2, the Hall element of the magnetic ring 2, which is fixedly arranged on the Hall signal plate 9 on the housing 10 along with the rotation of the middle shaft 8, senses and outputs a pulse signal, and finally a display expresses that a plurality of pulses represent one circle of pedal rotation and one circle of rotation within a period of time.

The working principle of the electric auxiliary booster bicycle for riding by people is as follows: the electric auxiliary power assisting device has the advantages that the quantity of the pedal force of a person riding is expressed by the quantity of electric quantity, namely, the pedal force of the person riding is smaller than the starting value of the auxiliary power assisting device of the motor 11, the motor 11 does not work, if the pedal force of the person riding is increased to exceed the lower limit value of the starting control voltage of the motor 11 when the person riding is on an ascending slope in the riding process, the auxiliary power assisting device of the motor 11 works to start, the motor 11 works to add the power assisting effect to the person riding, at the moment, the power of the bicycle riding is the mixed force of the manpower and the power, the mixed power exists anytime and anywhere due to the road condition, the random nature and the like of the pedal force of the person, and the person who can not quantitatively distinguish the pedal force is hoped, so that the person riding for the riding fan or the part of the person riding with the purpose of body exercise consumes the energy for the riding in the riding process.

In the case of not only requiring certain riding physical exercises, but also providing certain power to assist in supporting the hybrid riding device if meeting an ascending slope, how to break and correctly quantify and distinguish manpower from electric power, the application realizes such a requirement function through the shaft type torque sensor 14 and the spoke type torque sensor 18, and the description is as follows:

the two power sources of the manpower-driven riding and the electric auxiliary power-driven riding are different, so that the two power sources are required to be separated from each other in the process of collecting the power sources, the two power sources are respectively used for collecting two different power sources, but the two power sources are used for driving the final stressed dental disk 33, the dental disk 33 receives the driving force given by the power sources in a clockwise rotation mode to drag the rolling of the rear wheel of the bicycle, the two power sources from different directions are finally used for driving the dental disk 33 in a common point, namely the spoke type moment sensor 18 fixedly provided with the dental disk 33, so that the two forces of manpower and electric mechanical force are required to drive the rotation of the spoke type moment sensor 18 together, the rotation of the spoke type moment sensor 18 is a set force point of manpower driving and motor driving, then the mechanical structure can enable the manpower and electric power to simultaneously drive the rotation of the spoke type moment sensor 18 respectively, and the mutual interference effect is avoided, the fact that the power sources which are truly and purely supplied by manpower are used for collecting driving signals from the shaft type moment sensor 14 are ensured, and the spoke type moment sensor 14 can be combined with the hub type moment sensor 18 in a synchronous rotation mode to realize the synchronous rotation of the spoke type moment sensor 18 from the hub type moment sensor 18, and the hub type moment sensor 18 is combined with the hub type sensor 18 in a synchronous structure of the rotation mode of the hub type 18; the motor 11 drives the external bevel gear of the spoke type torque sensor 18 to rotate through the rotation of the shaft type bevel gear 30 after the power-assisted starting electric signal is obtained, namely, the spoke type torque sensor 18 and the tooth disc 33 arranged on the spoke type torque sensor 18 are driven to rotate, the paths of the two forces driving the spoke type torque sensor 18 to rotate are different, the interference influence is caused between the two paths, namely, the manual driving center shaft 8 rotates and drives the spoke type torque sensor 18 and the tooth disc 33 fixedly arranged on the spoke type torque sensor 18 to rotate through the meshing of the ratchet wheel 21 and the pawl 23, and finally, the rear wheel of the bicycle is dragged, and when the spoke type torque sensor 18 rotates, the shaft type bevel gear 30 is driven to rotate simultaneously because the external bevel gear of the spoke type torque sensor 18 is matched with the shaft type bevel gear 30, and when the external bevel gear 30 matched with the spoke type torque sensor 18 is in a one-way structure, the one-way structure rotates in a main and slave direction relationship, an internal sliding button phenomenon is generated, and the nylon 29 cannot be driven to rotate, so that the human power consumption of the riding torque sensor 14 is realized, the human power consumption is realized, and the human power consumption is high, and the human power consumption is realized.

The path driven by the motor 11 may also prove to be illustrative of the complementary interference of the electric power with the manual drive, as follows: after the motor 11 obtains a starting power-assisted signal, a motor output shaft 32 of the motor 11 rotates to drive a nylon helical gear 29 matched with the motor to rotate, and a shaft type isolator 12 arranged in the nylon helical gear 29 is meshed under the influence of the rotation of the nylon helical gear 29 in a specific direction to drive a shaft type helical gear 30 to rotate in the specific direction; the shaft type bevel gear 30 is engaged with the external bevel gear of the spoke type torque sensor 18 and naturally rotates synchronously, at this time, the rotation direction of the spoke type torque sensor 18 is the rotation direction of the toothed disc 33 necessarily being the clockwise rotation direction, at this time, the power assisting force for dragging the rear wheel of the bicycle is generated, at this time, the spoke type torque sensor 18 is also clockwise rotation, which is not in accordance with the condition that the pawl 23 mounted on the spoke type torque sensor 18 is engaged with the pawl 23 mounted on the shaft type torque sensor 14, and the slipping occurs, and the center shaft 8 or the shaft type torque sensor 14 cannot be dragged to synchronously rotate therewith.

The auxiliary power-assisted driving of the motor 11 is provided with or without, and the large and small signal acquisition and detection are realized by a spoke type moment sensor 18, and the working principle is as follows:

the spoke type moment sensor 18 is mainly formed by combining three parts of structures of a hub, a spoke and a rim, wherein a ratchet wheel 21 is fixedly arranged in an inner cavity of the hub and is matched with a pawl 23 at the free end of the shaft type moment sensor 14, a toothed disc 33 is fixedly arranged at the outer circle side of the hub, the outer bevel gear of the spoke type moment sensor 18 is called a rim, a connecting part between the rim and the hub is called a spoke, a strain gauge B20 is stuck on the spoke, namely N tensile strain gauges B20 are stuck on the spoke to form a measuring circuit, when the motor 11 drives the rim to rotate clockwise through a bevel gear 30, resistance that a toothed disc 33 on the spoke type moment sensor 18 is pulled anticlockwise by a chain is received, the rotation direction of the rim is opposite to the resistance direction of the toothed disc 33 on the hub, the two ends of the spoke between the rim and the hub are subjected to distortion due to the action of forces in different directions, the mechanical deformation of the spoke causes the strain gauges B20 stuck on the spoke, the measuring circuit is used for converting sensed physical quantity change signals into electric signals through an electric signal board C22, the electric signal conversion of the electric signal conversion circuit is used for converting the electric signals into dynamic signals, and the electric signals are converted into dynamic power signals which are respectively output from a dynamic power signals through a dynamic power conversion circuit B circuit 35 to a driving circuit 35, and a driving circuit 11.

The device can also be independently used as a physical exercise device which is ridden by a single manpower foot and is used for treading the function and display of the power meter, namely, a switch button is arranged on the handle of the bicycle to cut off an electric signal transmitted by the shaft type moment sensor 14 to the controller 34 to drive the motor 11 to assist the power, so that no matter how much and how hard the bicycle is ridden by the manpower, the physical energy consumed by the manpower and the like can be well detected, recorded and displayed, but the auxiliary power of the motor 11 is not started.

The parts of the magnetic ring 2, the amplifying circuit board A3, the slip ring A4, the Hall signal board 9 and the strain gauge A15 are working units of the shaft type moment sensor 14; the part of the amplifying circuit board B17, the slip ring B19 and the amplifying circuit board C22 is a working unit of the amplifying circuit board C22.

The controller 34 is a conventional controller for an electric power-assisted bicycle, and when it receives an electric signal output by the manual stepping shaft type torque sensor 14, namely, electric power-assisted starting telecommunication, the controller 34 starts to start the power assistance of the motor 11, and the controller 34 only acts as an electric signal output by the manual stepping shaft type torque sensor 14 to control the magnitude action relation of the power assistance of the motor 11.

The conversion circuit 35 is that the electric signal sensed by the manual stepping shaft type torque sensor 14 is transmitted to the controller 34 to control the power assisting function of the motor 11 and is also transmitted to the conversion circuit 35, and the electric signal of the manual stepping is converted into the power consumption value through the conversion circuit 35 and then displayed, so that the conversion circuit 35 converts the electric signal of the force into the power, and meanwhile, the rotation speed signal collected by the Hall signal board 9 is converted into the speed signal and displayed.

The power generated by the assistance of the motor 11 collected by the spoke type moment sensor 18 is also converted into the power of the electric signal generated by the assistance of the motor 11 through the amplifying circuit board B17 and displayed.

As described above, the controller 34 is a conventional controller 34 for electric power assist, and acts only as the power assist of the motor 11.

The conversion circuit 35 is a function of converting the electric signal of the axial torque sensor 14 into power consumption and display, including a speed display function.

The amplifying circuit board B17 is used for converting the electric signals of the spoke type moment sensor 18 into power and displaying functions.

The amplification circuit board c 22 is a signal amplification circuit of the spoke type torque sensor 18.

In addition, it should be noted that the specific embodiments described in the present specification may vary from part to part, from name to name, etc., and the above description in the present specification is merely illustrative of the structure of the present utility model. All equivalent or simple changes of the structure, characteristics and principle according to the inventive concept are included in the protection scope of the present patent. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.

Claims (8)

1. The utility model provides a measurable quantity physical stamina consumption's driving device for electronic supplementary helping hand bicycle, includes axis (8), motor (11), motor output shaft (32) and tooth dish (33), motor output shaft (32) set up on motor (11), its characterized in that: still include shaft type isolator (12), shaft type moment sensor (14), spoke type moment sensor (18), ratchet (21), pawl (23), nylon helical gear (29) and shaft type helical gear (30), motor output shaft (32) and nylon helical gear (29) meshing, install shaft type isolator (12) in nylon helical gear (29), shaft type isolator (12) suit is on the gear shaft of shaft type helical gear (30), shaft type helical gear (30) are connected with spoke type moment sensor (18), install ratchet (21) and tooth disc (33) on spoke type moment sensor (18), the stiff end of shaft type moment sensor (14) is installed on axis (8), pawl (23) are installed to the free end of shaft type moment sensor (14), pawl (23) and ratchet (21) cooperation.

2. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: still include magnetic ring (2), amplifier circuit board first (3), sliding ring first (4), hall signal board (9), foil gage first (15), controller (34) and converting circuit (35), foil gage first (15) are pasted on shaft type moment sensor (14), foil gage first (15) are connected with amplifier circuit board first (3), amplifier circuit board first (3) are connected with sliding ring first (4), sliding ring first (4) are connected with hall signal board (9), hall signal board (9) are connected with converting circuit (35), magnetic ring (2) and hall signal board (9) cooperation, and magnetic ring (2) are installed at the stiff end of shaft type moment sensor (14), sliding ring first (4) suit is on axis (8), the detecting circuit that foil gage first (15) constitute is connected with controller (34), controller (34) are connected with motor (11).

3. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: still include amplification circuit board B (17), sliding ring B (19), foil gage B (20) and amplification circuit board C (22), foil gage B (20) paste on spoke formula moment sensor (18), foil gage B (20) are connected with amplification circuit board C (22), amplification circuit board C (22) are connected with sliding ring B (19), sliding ring B (19) are connected with amplification circuit board B (17), amplification circuit board B (17) are connected with converting circuit (35).

4. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: the rolling bearing comprises a rolling bearing A (1), a sealing plate (5), a rolling bearing B (6), a bearing B seat (7), a housing (10), a shell (13), a bearing C seat (16), a rolling bearing D (24), a housing disc (25), a rolling bearing E (26), a bearing E fixed cover (27), a rolling bearing F (28) and a rolling bearing G (31), wherein the bearing B seat (7), the housing (10) and the bearing C seat (16) are all arranged in the shell (13), a Hall signal plate (9) is arranged in the housing (10), the rolling bearing A (1) is arranged between a shaft type moment sensor (14) and the housing (10), the sealing plate (5) is arranged on the housing (10), the rolling bearing B (6) is arranged between the bearing B seat (7) and a center shaft (8), the rolling bearing D (24) is arranged between a spoke type moment sensor (18) and the center shaft (8), the rolling bearing E (26) is arranged between the shaft type moment sensor (14) and the bearing E fixed cover (27), the shaft type moment sensor F (28) is arranged between the shaft type moment sensor (14) and the rolling bearing G (31) and the rolling bearing (30) is arranged between the shaft type moment sensor (14) and the center shaft (8), the housing disk (25) is mounted on the spoke-type torque sensor (18).

5. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: the fixed end of the shaft type moment sensor (14) is arranged on the center shaft (8) through threads, and the free end of the shaft type moment sensor (14) is in a suspended state.

6. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: the spoke type moment sensor (18) comprises a hub, a rim and spoke strips, wherein the spoke strips are arranged between the hub and the rim, a ratchet wheel (21) is arranged in an inner cavity of the hub, a toothed disc (33) is arranged on the outer side of the hub, an outer helical gear is arranged on the outer ring of the rim, and a strain gauge B (20) is bonded on the spoke strips.

7. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: the shaft type moment sensor (14) and the spoke type moment sensor (18) are both of elastomer structures.

8. The driving device for an electric assist bicycle capable of measuring energy consumption according to claim 1, wherein: the ratchet wheel (21) is arranged in an annular structure, the outer ring of the ratchet wheel (21) is arranged on the hub, and the inner ring of the ratchet wheel (21) is provided with a toothed structure matched with the pawl (23).

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