CN109591945A - A kind of power-aid bicycle torque testing agency facilitating installation - Google Patents
A kind of power-aid bicycle torque testing agency facilitating installation Download PDFInfo
- Publication number
- CN109591945A CN109591945A CN201910036281.9A CN201910036281A CN109591945A CN 109591945 A CN109591945 A CN 109591945A CN 201910036281 A CN201910036281 A CN 201910036281A CN 109591945 A CN109591945 A CN 109591945A
- Authority
- CN
- China
- Prior art keywords
- elastomer
- axis
- slip ring
- power
- testing agency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 title claims abstract description 22
- 229920001971 elastomer Polymers 0.000 claims abstract description 140
- 239000000806 elastomer Substances 0.000 claims abstract description 140
- 238000009413 insulation Methods 0.000 claims description 22
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 229910000906 Bronze Inorganic materials 0.000 claims description 6
- 239000010974 bronze Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 20
- 210000002683 foot Anatomy 0.000 description 6
- 230000004323 axial length Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 210000003371 toe Anatomy 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
- B62M6/50—Control or actuating devices therefor characterised by detectors or sensors, or arrangement thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J45/00—Electrical equipment arrangements specially adapted for use as accessories on cycles, not otherwise provided for
- B62J45/40—Sensor arrangements; Mounting thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J99/00—Subject matter not provided for in other groups of this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a kind of power-aid bicycle torque testing agencies for facilitating installation, including the axis for fixing left and right footrest, the elastomer of tubulose is arranged on axis, inner end of the elastomer in the middle part of axis is fixedly connected with axis, elastomer is the connecting pin that can connect and transmit torque with chain wheel close to the outer end of axis end, the lateral wall of the elastomer is equipped with changing sensor, the changing sensor is electrically connected by sliding ring current collector with a signal output end, the inner end of the elastomer is equipped with the radial through-hole for radially penetrating through axis, fixed pin is equipped in radial through-hole, the inner end of elastomer flange with outward extension, the radial through-hole is arranged on the periphery of flange.The present invention makes controller that can steadily control the output torque and revolving speed of hub motor, facilitates the assembling and follow-up maintenance and long service life of vehicle.
Description
Technical field
The present invention relates to electric boosted bicycle technical fields, turn round more particularly, to a kind of power-aid bicycle for facilitating installation
Square testing agency.
Background technique
Currently, electric bicycle is because its is laborsaving, the advantages that facilitating popularize at home, electric bicycle is to show
Battery, hub motor and the controller for controlling hub motor are set on the basis of some bicycles.When cyclist turns
When the dynamic speed regulation handlebar being arranged on vehicle handle, the output torque and revolving speed of hub motor can be directly controlled, to realize electricity
Power drive.
However there are the following problems for existing electric bicycle: although electric bicycle remains footrest, so as to cyclist
It is ridden with manpower, but the footrest and hub motor as power source are separately controlled, since cyclist is difficult to pass through speed regulation
Handlebar accurately controls the height of hub motor output torque size and revolving speed, thus can not make to be driven by electricity that step on driving with foot good
Good cooperation causes status of a large amount of electric bicycle virtually completely using the mode that is driven by pure electric power, and rides and ride only
Shi Caihui is exhausted in accumulator electric-quantity to use.Although the driving method has fast, effortlessly benefit, it has deviated from electric power
The original intention of auxiliary drive makes electric bicycle become pure electrical motor vehicle, and then is easy to produce and drives over the speed limit, and causes to ride
It is dangerous.It takes exercises purpose in particular, not only having wished to ride by manpower for a part to reach but also wishes to realize that electric power is auxiliary
Help driving to save the bicyclist of physical strength for, existing electric bicycle be extremely difficult to manpower ride based on, electric power auxiliary drive
Dynamic effect.
For this purpose, people have invented electric assisted bicycle, the essential structure of electric assisted bicycle and working principle and electricity
Dynamic bicycle is similar, be also by battery drive hub motor, to drive vehicle driving, still, hub motor
Rotation is controlled by the signal that corresponding sensor is sensed, when controller receives the speed of the footrest of sensor output
When the signals such as the state of degree, torque or vehicle, that is, it can be automatically controled the working condition and output torque of hub motor.Also
It is to say, cyclist cannot achieve in the state of not using foot-operated ride and be driven by pure electric power, and is driven by electricity and is only used for auxiliary drive
It is dynamic, and cyclist can not optionally control the output torque and revolving speed of hub motor, to can realize based on manpower, electric power is
Auxiliary mode of riding ensures that bicyclist can ride over long distances while taking exercises, and is such as needing situations such as accelerating
Lower saving physical strength.
The sensor of existing vehicle using motor is normally located on driving chain, and the rate of tension by detecting transmission chain is sentenced
The riding condition of disconnected vehicle using motor out, and then control the output torque and revolving speed of hub motor.For example, public in Chinese patent literature
" a kind of torque detecting apparatus of Moped Scooter " opened, notification number CN207328734U, including can be fixed on vehicle body
Installing component, the torque sensing device that is arranged on installing component, the torque sensing device includes being arranged in installing component
Upper and longitudinally arranged sensor elastomer, the sensor elastomer be equipped with can sensing sensor elastomer deformation deformation
Sensor, one end of sensor elastomer are equipped with sensing sprocket wheel, and the other end of sensor elastomer is equipped with jockey sprocket, senses chain
Wheel and jockey sprocket are located at the tension section two sides of vehicle using motor transmission chain, sense sprocket wheel and jockey sprocket respectively with tension section phase
The tension section of engagement, transmission chain forms Z-shaped bending after successively bypassing jockey sprocket and sensing sprocket wheel, in the slack strand of transmission chain
On be additionally provided with can make transmission chain have an initial tension strainer, when transmission chain tension section tensioning and pushing tow be oriented to
When sprocket wheel and sensing sprocket wheel, sensor elastomer generates deformation, changing sensor, that is, exportable and sensor elastomer at this time
The corresponding electric signal of deformation quantity.
However the torque testing agency on existing Moped Scooter has following defects that firstly, since being bent to Z certainly
The tensile force of capable transmission chain ultimately forms the Bending Deformation of longitudinally arranged elastomer by conversion, and sensor detection is
The Curved variable of elastomer.That is, the tensile force of transmission chain is acted directly on elastomer, sensor detection
It is not the tensile force size of transmission chain.Therefore, the length when installation accuracy of transmission chain and elastomer, transmission chain installation and pine
Tightness etc. can all have an impact the output of sensor, to influence the stability of control precision.Secondly, being unfavorable for transmission chain
Assembly and maintenance, and elastomer, sensor are exposed, are easy to make sensor failure because of rugged environment or reduce precision.Especially
Be, when encountering Uneven road, vehicle strenuous vibration, transmission chain can also generate it is violent teetertotter, make transmission chain generate one
A additional tensile force, and then make the interference signal of sensor output error.
Summary of the invention
Control precision present in torque testing agency the purpose of the present invention is to solve existing Moped Scooter is held
The stability that precision is influenced, controlled vulnerable to mounting condition etc. is poor, and the problem of inconvenient installation maintenance, easy failure, mentions
For a kind of power-aid bicycle torque testing agency for facilitating installation, there is stable control precision, facilitate the assembling of vehicle with after
Continuous maintenance and long service life.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of power-aid bicycle torque testing agency facilitating installation, including the axis for fixing left and right footrest, on axis
It is arranged with the elastomer of tubulose, inner end of the elastomer in the middle part of axis is fixedly connected with axis, and elastomer is close to axis
The outer end of end is the connecting pin that can connect and transmit torque with chain wheel, and the lateral wall of the elastomer is sensed equipped with deformation
Device, the changing sensor are electrically connected by sliding ring current collector with a signal output end.
Analogously with bicycle, as soon as the vehicle frame of electronic power-aid bicycle also includes the five logical of a tubulose, and axis
In setting is logical five, the both ends of axis are respectively set crank and footrest, and right section of axis is additionally provided with chain wheel, chain wheel and rear-wheel
Transmission chain is arranged between sprocket wheel.When bicyclist's bipod alternately tramples the footrest of the left and right sides respectively, casing drives axis
Rotation, and then rotated forward with movable chain wheel, chain wheel drives rear-wheel to rotate forward by transmission chain, realizes the people of power-aid bicycle
Power is ridden.It is understood that will form certain torque on axis when manpower is ridden.For this purpose, the present invention creatively exists
It is arranged the elastomer of a tubulose on axis, and is fixedly connected with one end of elastomer with axis, the other end of elastomer is
The connecting pin of torque can be connect and transmitted with chain wheel.That is, the chain wheel of power-aid bicycle is the connection that elastomer is arranged in
On end.In this way, what one end of elastomer was subject to is the forward direction that axis passes over when bicyclist's foot tramples foot and starts to ride
The active force of rotation, what the other end of elastomer was subject to is the reversed resistance passed over by rear-wheel, transmission chain, chain wheel,
To form a torque on elastomer, elastomer is set to generate a degree of torsional deformation, at this point, the deformation on elastomer
Sensor can export an electric signal to controller, and controller then judges torsion that bicyclist's manpower is ridden according to the electric signal
Square size.When vehicle is at the early-stage, vehicle encounters upward slope or bicyclist needs to accelerate to ride, torque meeting that manpower is ridden
Naturally increase, the electric signal exported by changing sensor can correspondingly increase, and hub motor is defeated when controller casing at this time
Biggish torque and revolving speed out to make vehicle quick start, or save physical strength of the bicyclist in vehicle driving up and acceleration.
It should be noted that vehicle frame five it is logical be a relative closure space, therefore, by elastomer and corresponding shape
It is logical interior five to become the setting such as sensor, elastomer, changing sensor etc. can be effectively prevented from and be affected by, be conducive to
Improve the stability and service life of its work.It is added it is understood that the strenuous vibration of vehicle will not be such that elastomer generates
Torque, thus will not influence the stability of the output signal of changing sensor.In addition, the axis part of vehicle be on vehicle most
It is hardly damaged, least needs the part of later maintenance.Therefore, elastomer, changing sensor etc. are arranged on axis, it can be effective
The trouble that ground avoids subsequent vehicle from dismounting again when repairing.Further, what changing sensor detected is the torsion of elastomer
Deformation, and the torsional deformation of elastomer is only applied to that the driving force on axis is related and elastomer is on axis with bicyclist
Axial and circumferential installation site precision is unrelated, therefore, can substantially reduce the requirement to installation accuracy.In particular, working as bicyclist
Left and right foot successively trample when to axis output driving torque, elastomer generates corresponding torsional deformation, and deformation senses
Device then exportable corresponding electric signal makes controller can be according to shape of riding to be conducive to keep the continuity of output signal
State adjusts the output torque and revolving speed of hub motor at any time.
Preferably, the inner end of the elastomer is equipped with the radial through-hole for radially penetrating through axis, set in radial through-hole
There is fixed pin.
One end of elastomer is fixedly connected with axis when passing through fixed pin, has not only facilitated it to process and assemble, but also can make axis
Enough torques are transmitted to elastomer.
Preferably, the inner end of elastomer flange with outward extension, the radial through-hole is arranged in flange
On the periphery on side.
On the one hand flange promotes the intensity of the elastomer inner end of tubulose in which can dramatically, it is avoided the phenomenon that breach occur,
The intensity with fixed pin connection can be improved again, avoid because of the excessive diameter for leading to elastomer of the torque transmitted between axis and elastomer
It cracks to through-hole, and advantageously reduces the wall thickness of elastomer.
Preferably, the connecting pin of the elastomer is equipped with the external splines that can be connect with chain wheel, in the connecting pin of elastomer
End thread is connected with the locking nut that can lock chain wheel.
External splines is arranged in the connecting pin of elastomer, to realize that spline is connect with chain wheel, can effectively transmit torque, simultaneously
Facilitate being linked and packed between chain wheel and elastomer.And locking nut is then that chain wheel is securely fixed on elastomer, avoids tooth
Disk generates axial displacement on elastomer.
Preferably, five logical interior left axle bearing sleeves can be fitted in by being equipped in axis far from the left end of elastomer, in left bearing
It is equipped with bearing support between set and axis, bearing bulge loop is equipped on the periphery of the elastomer between flange and connecting pin,
Five can be fitted in by, which being equipped on the outside of elastomer, leads to interior right axle bearing sleeve, is equipped with support shaft between right axle bearing sleeve and bearing bulge loop
It holds, the changing sensor is the resistance-strain on the elastic outside being arranged between the flange and bearing bulge loop
Piece.
The present invention is respectively set can be adapted to five in the left and right ends of axis and leads to interior left and right bearing blocks, so as to will be whole
It is logical interior that a testing agency is easily mounted and positioned in five, and the bearing support in left and right bearing block can then be such that axis and five leads to
Between good rotation connection formed by bearing, greatly reduction frictional resistance.In particular, elastomer be equipped with flange and
Bulge loop is supported, therefore, we can fully reduce flange and support the wall thickness of the elastomer between bulge loop, to increase as far as possible
The torsional deflection of elastomer at work, and then be conducive to improve the electric signal precision of changing sensor output.It is understood that
It is the only torque that elastomer is born at work, and elastomer is set on axis, therefore, works as elastomer
By a torque when torsional deflection, axis can form secure support radially to elastomer, even if the wall thickness of elastomer
It is relatively thin, the deformation that is recessed inwardly will not be generated, it is ensured that elastomer can work normally, and the relatively thin elastomer of wall thickness is more advantageous to
It generates torsional deformation.
Preferably, being equipped with middle sheath shaft in the flange outer sheath, the middle sheath shaft left end fits in left bearing
In set, right end is fitted in right axle bearing sleeve, and the middle sheath shaft is equipped with the output via hole that permissive signal output end is pierced by outward.
Center shaft outer sleeve can make elastomer and changing sensor effectively be screened, and entire testing agency is made to form one
Complete enclosed construction not only improves and leads to interior assembly five, and can reinforce prolonging the protection of elastomer, changing sensor
Long life.
Preferably, being arranged with insulation sleeve on the axis, the insulation sleeve lateral wall is equipped with annular groove, slip ring current collection
Device includes being embedded slip ring in a ring groove, the circuit board that middle sheath shaft inner sidewall is equipped with the signal output end being arranged in,
The slip ring is electrically connected with changing sensor, and the circuit board is equipped with elasticity and compresses slip ring and be electrically connected with signal output end
Conductive slide plate.
When axis drives elastomer rotation, changing sensor generates corresponding electric signal, to pass through slip ring and slip ring
Conductive slide plate, the signal output end that elasticity compresses export outward.It is understood that middle sheath shaft is to be arranged in relatively fixedly
Five it is logical in, and axis, elastomer are opposite five logical to rotate.When axis drives insulation sleeve rotation, conductive slide plate can begin
Eventually closely against slip ring, so that it is guaranteed that reliable between changing sensor and signal output end is electrically connected.
Preferably, being arranged with insulation sleeve on the axis, the insulation sleeve lateral wall is equipped with annular groove, slip ring current collection
Device includes being embedded slip ring in a ring groove, the circuit board on middle sheath shaft inner sidewall with the signal output end being arranged in,
The slip ring is electrically connected with changing sensor, and the circuit board, which is equipped with, to be made of beryllium-bronze and be electrically connected with signal output end
Electroconductive elastic sheet, the electroconductive elastic sheet are equipped with the magnetic adsorption plate being adsorbed on slip ring in the end of electroconductive elastic sheet wound on slip ring surface,
The end of electroconductive elastic sheet is clamped between axis and magnetic adsorption plate, and coiling direction and axis of the electroconductive elastic sheet on slip ring are just
Consistent to the direction of rotation, winding angle on the slip ring of the electroconductive elastic sheet is in 180 degree between 330 degree.
Electroconductive elastic sheet is made of beryllium-bronze, thus also has good elasticity while with satisfactory electrical conductivity.We
Electroconductive elastic sheet can be made to disc spring shape, so that it be made to be convenient to elasticity wound on the surface of slip ring, realize changing sensor with
The electrical connection of signal output end.Particularly, magnetic adsorption plate can reliably stick on electroconductive elastic sheet hanging one end on slip ring always, from
And certain frictional force is formed between electroconductive elastic sheet and axis.When axis rotates forward, can have by frictional force drive
The electroconductive elastic sheet of elasticity is also positive to be stretched and rotates, and curved electroconductive elastic sheet can be closely under the drive of frictional force at this time
Slip ring surface is sticked on, so that it is guaranteed that being reliably electrically connected between electroconductive elastic sheet and slip ring.It is understood that ought make for a long time
When being decreased with the elasticity of, electroconductive elastic sheet itself, above structure of the invention can ensure between electroconductive elastic sheet and slip ring always
Fit closely and reliable signal transmission.Both when the winding angle on the slip ring of electroconductive elastic sheet is less than 180 degree, can reduce
Between the reliability that connects；When the winding angle on the slip ring of electroconductive elastic sheet is greater than 330 degree, then it can make electroconductive elastic sheet and slip ring
Between form excessive frictional force, to form excessive involve power to circuit board in central axis, be easily damaged circuit board.
Preferably, the circuit board is equipped with Hall element, it is embedded in the insulation sleeve corresponding with Hall element
Magnet steel.
When axis drive insulation sleeve rotation when, between magnet steel and Hall element formed relatively rotate, when magnet steel turn to
When Hall element is opposite, Hall element can export an electric signal outward.Controller can based on the received electrical signal between
The velocity of rotation of axis is calculated every the time, is then controlled hub motor and is exported corresponding torque and revolving speed.For example, when on vehicle
When slope, controller can make hub motor export a biggish torque according to the electric signal that changing sensor exports；And at this time suddenly
Your the axis revolving speed of element output is lower, thus, controller can make hub motor export a lower revolving speed, to bicyclist
Under the premise of abundant power-assisted, avoid causing hub motor and corresponding accumulator load excessive because of excessive velocities.
It is stitched preferably, being equipped with several spiral helicine cuttings on elastomer between flange and bearing bulge loop, it is described
Cutting seam is uniformly distributed in the circumferential, is embedded with tensioner piece in cutting seam, adjacent cutting is arranged in the changing sensor
On elastomer between seam.
It is understood that when by torque, will form a torsion for the elastomer of sleeve-shaped plus stretch
Complicated deformation, and its overall deformation quantity can be smaller, and therefore, the electric signal of changing sensor output can be smaller, and
The size of the electric signal of the size and output of torque will form an extremely complex functional relation, be unfavorable for controller accurately
Judge the torque of axis.The present invention is stitched by techniques such as wire cuttings in several spiral helicine cuttings of the online formation of elastomer,
To make elastomer form several spiral bars.When axis drives elastomer rotation, elastomer will receive a torque, at this time spiral shell
The mainly pulling force that item is born is revolved, therefore, spiral bar can correspondingly extend deformation, and changing sensor can export one outward
A electric signal.That is, the size of deformation caused by elastomer of the invention and torque is substantially in a linear relationship, and spiral shell
Rotation item can form biggish tensile deformation, therefore, be conducive to controller and accurately judge torque suffered by axis.It can be with
Understand, when forming a torque between the both ends of elastomer, one side spiral bar meeting tensile deformation, on the other hand, spiral shell
The screw pitch of rotation item can correspondingly reduce, so that the axial length of entire elastomer be made to shorten.Since cutting seam of the invention is embedded
Equipped with tensioner piece, therefore, when by torque, it will receive the obstruction of tensioner piece between adjacent spiral bar and can not mutually lean on
Closely, the screw pitch of each spiral bar will not reduce.That is, the axial length of entire elastomer will not shorten, so as to protect
Hold the constant of elastomer and the link positions such as axis and chain wheel, bearing support.
Therefore, the invention has the following beneficial effects: make controller can steadily control hub motor output torque and
Revolving speed facilitates the assembling and follow-up maintenance and long service life of vehicle.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Fig. 2 is another structural schematic diagram of sliding ring current collector of the present invention.
Fig. 3 is a kind of partial structural diagram of the elastomer after flattening.
In figure: 1, axis 2, elastomer 21, connecting pin 22, flange 23, locking nut 24, bearing bulge loop 25,
Cutting seam 26, tensioner piece 3, changing sensor 4, signal output end 5, fixed pin 6, left axle bearing sleeve 61, end wall 62, side
Wall 63, bearing support 64, rotation flange 65, Hall element 7, right axle bearing sleeve 71, lateral wall 72, inner sidewall 8, in
Sheath shaft 81, conductive slide plate 812, electroconductive elastic sheet 82, magnetic adsorption plate 9, insulation sleeve 91, annular groove 92, is slided circuit board 811
Ring 93, magnet steel.
Specific embodiment
The present invention will be further described with specific embodiment with reference to the accompanying drawing.
As shown in Figure 1, a kind of power-aid bicycle torque testing agency for facilitating installation, is used to detect bicyclist and is riding
Manpower output torque size when electronic power-aid bicycle, and then make controller that hub motor can control to export corresponding torque
And revolving speed, realize electric power auxiliary drive.Certainly, need to be equipped with the hub motor of battery, drivable wheel on power-aid bicycle
Or driving motor, the controller for controlling hub motor of other forms.
Specifically include axis 1, be arranged with the elastomer 2 of tubulose on axis, elastomer preferably can be used stainless steel it
Class is not easy to get rusty and there is sufficiently resilient material to be made.Square toes and corresponding screw hole etc. need to be arranged in the left and right ends of axis,
In order to be connected with the crank of footrest.Inner end of the elastomer in the middle part of axis is fixedly connected with axis, and elastomer is in
The outer end of axis right part is the connecting pin 21 that torque can be connect and transmitted with chain wheel, and deformation is arranged on the lateral wall of elastomer and passes
Sensor 3, changing sensor are electrically connected by sliding ring current collector with a signal output end 4.
It is understood that analogously with bicycle, the vehicle frame of electronic power-aid bicycle also includes a tubulose
Five is logical, and axis be just arranged in five it is logical in, crank and footrest is respectively set in the both ends of axis, and right section of axis is additionally provided with tooth
Transmission chain is arranged between the sprocket wheel of disk, chain wheel and rear-wheel.When bicyclist's bipod alternately tramples the footrest of the left and right sides respectively
When, casing drives central axis, and then rotates forward with movable chain wheel, and chain wheel drives rear-wheel to rotate forward by transmission chain, real
The manpower of existing power-aid bicycle is ridden.
In this way, what one end of elastomer was subject to is that axis passes over just when bicyclist's foot tramples foot and starts to ride
To the active force of rotation, what the other end of elastomer was subject to is the reversed resistance passed over by rear-wheel, transmission chain, chain wheel
Power makes elastomer generate a degree of torsional deformation, at this point, on elastomer to form a torque on elastomer
Changing sensor can produce an electric signal, and be exported outward by sliding ring current collector by signal output end.
When vehicle is at the early-stage, vehicle encounters upward slope or bicyclist needs to accelerate to ride, torque meeting that manpower is ridden
Naturally increase, the electric signal exported by changing sensor can correspondingly increase, and hub motor is defeated when controller casing at this time
Biggish torque and revolving speed out to make vehicle quick start, or save physical strength of the bicyclist in vehicle driving up and acceleration.
In order to facilitate the connection of elastomer and axis, the diameter of radially perforation axis can be arranged in the inner end of elastomer in we
To through-hole, fixed pin 5 is set in radial through-hole, not only facilitates processing and assembling, but also middle axial elastomer transmitting can be made enough
Torque.
Preferably, integrally outwardly extending flange 22 can be arranged in the inner end of elastomer in we, to promote tubulose
The intensity of elastomer inner end, avoids elastomer from the phenomenon that breach occur.In addition, radial through-hole may be provided at the periphery of flange
On, to extend the length that fixed pin protrudes into the radial through-hole part of elastomer, effectively promote the connection of axis and elastomer
Intensity avoids cracking because of the excessive radial through-hole for leading to elastomer of the torque transmitted between axis and elastomer, and is conducive to
Reduce the wall thickness of elastomer.
In addition, the connecting pin of elastomer sets the settable external splines for connecting with chain wheel, certainly, the center of chain wheel should be set
Corresponding splined hole is set, and connects a locking nut 23 in the connecting pin end thread of elastomer.When the present invention is assembled to five
When in logical, first chain wheel can be keyed on the connecting pin of elastomer, then tighten locking nut, chain wheel can be made to be fixed on
On elastomer.
In addition, a left axle bearing sleeve 6 can be arranged in we outside left end of the axis far from elastomer, set on the outside of elastomer
Five can be fitted in by, which setting, leads to interior right axle bearing sleeve 7, and left axle bearing sleeve includes an annular end wall 61, is integrally attached to end wall outer edge
And the side wall 62 of the sleeve-shaped axially inwardly extended, right axle bearing sleeve include an end wall, be integrally attached to end wall outer edge and to
The inner sidewall 72 of the lateral wall 71 of axially extending sleeve-shaped, the sleeve-shaped integrally axially inwardly extended by end wall outside.Wherein
The side wall of left axle bearing sleeve and the inner sidewall of right axle bearing sleeve are adapted to five logical inner holes, so as to make the present invention be assemblied in five it is logical in, and
Left and right bearing holder (housing, cover) can then be adapted to and be located in five logical left and right ends.In addition, elastomer between flange and connecting pin
The bearing bulge loop 24 of the settable one in lateral wall position is corresponded on periphery.In this way, we can be in the side wall of left axle bearing sleeve
The bearing support 63 being made of ball bearing is set between axis, right axle bearing sleeve lateral wall and bearing bulge loop between setting by
The bearing support that ball bearing is constituted makes axis pass through the branch between bearing support, right bearing seat and the elastomer in left shaft holder
Hold bearing and five it is logical between form good rotation connection, greatly reduction frictional resistance.
It should be noted that external screw thread can be respectively set on the side wall of left axle bearing sleeve and the inner sidewall of right axle bearing sleeve, with
Five logical left and right ends are threaded in convenient for left and right bearing holder (housing, cover).Certainly, internal screw thread should be arranged in five logical left and right ends, left and right
Left and right bearing holder (housing, cover) is fastened on five with spanner to facilitate by the rotation flange 64 of the settable regular hexagon in the outer end of bearing holder (housing, cover)
On logical.
Preferably, changing sensor is that the resistance on the elastic outside being arranged between flange and bearing bulge loop is answered
Become piece.It should be noted that the only torque that elastomer is born at work, and elastomer is set on axis
, therefore, when elastomer is by a torque and when torsional deflection, axis can form secure support radially to elastomer,
Elastomer will not generate the deformation that is recessed inwardly.Therefore, we can fully reduce flange and support the elastomer between bulge loop
Wall thickness, to increase elastomer torsional deflection at work as far as possible, and then be conducive to improve the electricity of changing sensor output
Signal accuracy.
Further, we can be arranged a middle sheath shaft 8 on the outside of flange, and middle sheath shaft left end fits in left bearing
In the side wall of set, right end is fitted in the inner sidewall of right axle bearing sleeve, and entire testing agency is made to form a complete closed knot
Structure, elastomer and changing sensor, which can be obtained, effectively screens, and is conducive to extend service life.Certainly, it would be desirable in axis
One output via hole is set on sheath, signal output end is then arranged in output via hole, and is pierced by outward by exporting via hole, with
Convenient and controller electrical connection.
In order to facilitate the changing sensor in rotation by the outside output signal of signal output end, we can cover on axis
Three circles are arranged if an insulation sleeve 9 by plastic cement mould-forming, insulation sleeve is arranged side by side with elastomer, on insulation sleeve lateral wall to exist
The annular groove 91 of equidistantly distributed in axial direction.Tight fit can be used in insulation sleeve and axis, or using axis as inserts and absolutely
Edge covers mould-forming together, so that insulation sleeve be made axis can be followed to rotate synchronously together.
As the first preferred embodiment, sliding ring current collector include be embedded slip ring 92 in a ring groove, setting is protected in axis
The circuit board 81 on inner sidewall is covered, slip ring is electrically connected with changing sensor, and elasticity is arranged on circuit board and compresses the conductive sliding of slip ring
Piece 811.Certainly, signal output end should be arranged on circuit boards, so that changing sensor be made to pass through slip ring, conductive slide plate and signal
Output end forms electrical connection.
When axis drives elastomer rotation, changing sensor generates corresponding electric signal, to pass through slip ring and slip ring
Conductive slide plate, the signal output end that elasticity compresses export outward.It is understood that being led when axis drives insulation sleeve rotation
Electric slide plate can be always closely against slip ring, so that it is guaranteed that reliable between changing sensor and signal output end is electrically connected.
It should be noted that on the one hand signal output end inputs a voltage to changing sensor, in order to deformation sensing
The normal work of device, the electric signal that on the other hand output changing sensor generates outward.
As second of preferred embodiment, as shown in Fig. 2, sliding ring current collector includes being embedded slip ring in a ring groove, setting
Circuit board on middle sheath shaft inner sidewall, slip ring are electrically connected with changing sensor, are arranged made of beryllium-bronze on circuit board
The magnetic being adsorbed on slip ring is arranged wound on slip ring surface in electroconductive elastic sheet 812, electroconductive elastic sheet on the outside of the end of electroconductive elastic sheet
Piece 82 is clamped in the end of electroconductive elastic sheet between axis and magnetic adsorption plate.Certainly, electroconductive elastic sheet should be with the signal on circuit board
Output end electrical connection, coiling direction of the electroconductive elastic sheet on slip ring should be consistent with the direction that axis rotates forward.
It is understood that winding when bicyclist starts cycling, axis rotates forward and being fitted in the conduction on slip ring
A frictional force is formed between elastic slice meeting and slip ring, and the hanging one end of electroconductive elastic sheet can reliably be sticked on cunning by magnetic adsorption plate always
On ring, to form a biggish frictional force between electroconductive elastic sheet end and axis.That is, one end of electroconductive elastic sheet
The frictional force to be formed effect is rotated by slip ring, the other end is then by the traction action of circuit board, so that electroconductive elastic sheet be made to be formed
One tensile force, electroconductive elastic sheet at this time can closely stick on slip ring surface, so that it is guaranteed that electroconductive elastic sheet and slip ring it
Between be reliably electrically connected.It is understood that when the elasticity of long-time service, electroconductive elastic sheet itself decreases, it is of the invention
Above structure can ensure that fitting closely between electroconductive elastic sheet and slip ring is transmitted with reliable signal always.
Preferably, the winding angle on the slip ring of electroconductive elastic sheet can be controlled in 180 degree between 330 degree, both can be improved and leads
The reliability being electrically connected between electric elastic slice and slip ring, and can avoid the damage that frictional force excessive between the two causes circuit board.
It should be noted that electroconductive elastic sheet can be made of beryllium-bronze, and electroconductive elastic sheet is first made disc spring shape, to make it
It can be automatically elastic wound on the surface of slip ring.In addition, slip ring at this time can by can be made by the stainless steel that magnetic adsorption plate adsorbs, or
Person's slip ring surface made of stainless steel coats one layer of beryllium-bronze, to adsorb it can by magnetic adsorption plate, and has good
Electric conductivity.
Further, it as shown in Figure 1, Hall element 65 can be also arranged in we on circuit boards, is embedded in insulation sleeve
Magnet steel 93 corresponding with Hall element.Certainly, magnet steel and slip ring can be used as inserts and shape together with insulation sleeve.
When axis drive insulation sleeve rotation when, between magnet steel and Hall element formed relatively rotate, when magnet steel turn to
When Hall element is opposite, Hall element can export an electric signal outward.Controller can based on the received electrical signal between
The velocity of rotation of axis is calculated every the time, is then controlled hub motor and is exported corresponding torque and revolving speed.For example, when vehicle needs
When accelerating, controller can make hub motor export a biggish torque according to the electric signal that changing sensor exports；And this
When Hall element output axis revolving speed it is higher, thus, controller can make hub motor export a higher revolving speed, to riding
Under the premise of the abundant power-assisted of passerby, it is ensured that vehicle speed with higher.
Finally, as shown in figure 3, we can flange and bearing bulge loop between elastomer on be arranged it is several spiral helicine
Cutting seam 25, cutting seam are uniformly distributed in the circumferential, so that elastomer be made to form several spiral bars, changing sensor is arranged in phase
On elastomer between adjacent cutting seam.When axis drives elastomer rotation, elastomer will receive a torque, at this time spiral
The mainly pulling force that item is born, therefore, spiral bar can generate tensile deformation, and changing sensor can export an electricity outward
Signal.That is, the size of deformation caused by elastomer of the invention and torque is substantially in a linear relationship, and spiral bar
Biggish tensile deformation can be formed, therefore, is conducive to controller and accurately judges torque suffered by axis.
Preferably, we can also be embedded tensioner piece 26 in cutting seam.In this way, when by torque, adjacent spiral bar
Between will receive tensioner piece obstruction and can not be close to each other, the screw pitch of each spiral bar will not reduce.That is, entire
The axial length of elastomer will not shorten, so as to keep elastomer and the link positions such as axis and chain wheel, bearing support
It is constant.
Claims (10)
1. a kind of power-aid bicycle torque testing agency for facilitating installation, including the axis for fixing left and right footrest, feature
It is that the elastomer of tubulose is arranged on axis, inner end of the elastomer in the middle part of axis is fixedly connected with axis, elasticity
Body is the connecting pin that can connect and transmit torque with chain wheel close to the outer end of axis end, and the lateral wall of the elastomer is equipped with
Changing sensor, the changing sensor are electrically connected by sliding ring current collector with a signal output end.
2. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 1, characterized in that the bullet
Property body inner end be equipped with radially penetrate through axis radial through-hole, in radial through-hole be equipped with fixed pin.
3. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 2, characterized in that the bullet
The inner end flange with outward extension of property body, the radial through-hole are arranged on the periphery of flange.
4. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 1, characterized in that the bullet
Property body connecting pin be equipped with the external splines that can connect with chain wheel, chain wheel can be locked by being connected in the connecting pin end thread of elastomer
Locking nut.
5. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 3, characterized in that in axis
Left end far from elastomer, which is equipped with, can fit in five logical interior left axle bearing sleeves, and support shaft is equipped between left axle bearing sleeve and axis
It holds, bearing bulge loop is equipped on the periphery of the elastomer between flange and connecting pin, being equipped on the outside of elastomer can be adapted to
Lead to interior right axle bearing sleeve five, bearing support is equipped between right axle bearing sleeve and bearing bulge loop, the changing sensor is setting
The resistance strain gage on elastic outside between the flange and bearing bulge loop.
6. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 5, characterized in that described
Flange outer sheath is equipped with middle sheath shaft, and the middle sheath shaft left end fits in left axle bearing sleeve, and right end fits in right axle bearing sleeve
Interior, the middle sheath shaft is equipped with the output via hole that permissive signal output end is pierced by outward.
7. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 6, characterized in that in described
Insulation sleeve is arranged on axis, the insulation sleeve lateral wall is equipped with annular groove, and sliding ring current collector includes being embedded in a ring groove
The circuit board with the signal output end, the slip ring and changing sensor electricity is arranged on middle sheath shaft inner sidewall in slip ring
Connection, the circuit board are equipped with the conductive slide plate that elasticity compresses slip ring and is electrically connected with signal output end.
8. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 6, characterized in that in described
Insulation sleeve is arranged on axis, the insulation sleeve lateral wall is equipped with annular groove, and sliding ring current collector includes being embedded in a ring groove
The circuit board with the signal output end, the slip ring and changing sensor electricity is arranged on middle sheath shaft inner sidewall in slip ring
Connection, the circuit board are equipped with the electroconductive elastic sheet for being made of beryllium-bronze and being electrically connected with signal output end, the electroconductive elastic sheet
Wound on slip ring surface, the magnetic adsorption plate being adsorbed on slip ring is equipped in the end of electroconductive elastic sheet, the end of electroconductive elastic sheet is clamped
Between axis and magnetic adsorption plate, coiling direction of the electroconductive elastic sheet on slip ring is consistent with the direction that axis rotates forward, institute
Winding angle on the slip ring of electroconductive elastic sheet is stated in 180 degree between 330 degree.
9. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 7 or 8, characterized in that institute
It states circuit board and is equipped with Hall element, be embedded with magnet steel corresponding with Hall element in the insulation sleeve.
10. a kind of power-aid bicycle torque testing agency for facilitating installation according to claim 5, characterized in that in method
Elastomer between blue side and bearing bulge loop is equipped with several spiral helicine cutting seams, and the cutting stitches uniform point in the circumferential
Cloth, is embedded with tensioner piece in cutting seam, and the changing sensor is arranged on the elastomer between adjacent cutting seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036281.9A CN109591945A (en) | 2019-01-15 | 2019-01-15 | A kind of power-aid bicycle torque testing agency facilitating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910036281.9A CN109591945A (en) | 2019-01-15 | 2019-01-15 | A kind of power-aid bicycle torque testing agency facilitating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109591945A true CN109591945A (en) | 2019-04-09 |
Family
ID=65965160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910036281.9A Pending CN109591945A (en) | 2019-01-15 | 2019-01-15 | A kind of power-aid bicycle torque testing agency facilitating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109591945A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002071477A (en) * | 2000-08-25 | 2002-03-08 | Shuhei Takasu | Torque sensor |
| CN103085932A (en) * | 2013-02-07 | 2013-05-08 | 苏州八方电机科技有限公司 | Electric bicycle center shaft force moment sensing device |
| CN104276251A (en) * | 2014-10-31 | 2015-01-14 | 太仓市荣驰电机有限公司 | Torque sensing system for middle shaft of electric vehicle |
| CN105015692A (en) * | 2014-04-22 | 2015-11-04 | 苏州八方电机科技有限公司 | Torque-speed sensing device for center shaft of electric bicycle |
| US20160159434A1 (en) * | 2013-12-26 | 2016-06-09 | Suzhou Tergar lot Technology Co., ltd | Center-Mounted Control System of Bicycle |
| CN106660607A (en) * | 2014-07-01 | 2017-05-10 | 松下知识产权经营株式会社 | Electric assist bicycle |
| CN108423115A (en) * | 2018-02-12 | 2018-08-21 | 浙江鑫驱科技有限公司 | A kind of auxiliary drive mechanism of power-aid bicycle |
| CN209535367U (en) * | 2019-01-15 | 2019-10-25 | 浙江鑫驱科技有限公司 | A kind of power-aid bicycle torque testing agency facilitating installation |
-
2019
- 2019-01-15 CN CN201910036281.9A patent/CN109591945A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002071477A (en) * | 2000-08-25 | 2002-03-08 | Shuhei Takasu | Torque sensor |
| CN103085932A (en) * | 2013-02-07 | 2013-05-08 | 苏州八方电机科技有限公司 | Electric bicycle center shaft force moment sensing device |
| US20160159434A1 (en) * | 2013-12-26 | 2016-06-09 | Suzhou Tergar lot Technology Co., ltd | Center-Mounted Control System of Bicycle |
| CN105015692A (en) * | 2014-04-22 | 2015-11-04 | 苏州八方电机科技有限公司 | Torque-speed sensing device for center shaft of electric bicycle |
| CN106660607A (en) * | 2014-07-01 | 2017-05-10 | 松下知识产权经营株式会社 | Electric assist bicycle |
| CN104276251A (en) * | 2014-10-31 | 2015-01-14 | 太仓市荣驰电机有限公司 | Torque sensing system for middle shaft of electric vehicle |
| CN108423115A (en) * | 2018-02-12 | 2018-08-21 | 浙江鑫驱科技有限公司 | A kind of auxiliary drive mechanism of power-aid bicycle |
| CN209535367U (en) * | 2019-01-15 | 2019-10-25 | 浙江鑫驱科技有限公司 | A kind of power-aid bicycle torque testing agency facilitating installation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016065500A1 (en) | Electric vehicle central shaft torque sensing system | |
| EP3056421B1 (en) | Electric bicycle central axle torque speed sense device | |
| US8485050B2 (en) | Torque sensor assembly for a power-assisted bicycle | |
| CN103879505B (en) | Electric bicycle motor | |
| CN203698571U (en) | Wireless torque sensing system for bike bottom bracket | |
| CN103879506A (en) | Center shaft torque sensing device of electric bicycle | |
| CN103085932B (en) | Electric bicycle center shaft force moment sensing device | |
| CN207045059U (en) | Vehicle wheel side assembly locking device | |
| CN107466279A (en) | A kind of wheel hub of electric bicycle | |
| CN111902338A (en) | Torque detection device for a vehicle driven by muscle power | |
| CN209535367U (en) | A kind of power-aid bicycle torque testing agency facilitating installation | |
| JPH09301260A (en) | Torque transmitting device for motor-assisted vehicle | |
| CN108423115B (en) | Auxiliary driving mechanism of power-assisted bicycle | |
| CN203780726U (en) | Built-in motor of electric bicycle | |
| CN109591945A (en) | A kind of power-aid bicycle torque testing agency facilitating installation | |
| JP2013095311A (en) | Bicycle with detachable electric assisting device | |
| CN203652054U (en) | Wireless torque detection-based middle positioned system | |
| CN106005220A (en) | Torque sensing device used for moped transmission system and moped transmission system | |
| CN1344655A (en) | Battery-powered moped and its running control method | |
| CN112644632A (en) | Bilateral linear torque middle shaft sensor for electric power-assisted bicycle | |
| CN208278268U (en) | Drive system is set in five logical repacking formula torques of one kind | |
| US20220411003A1 (en) | Electrical assembly for human-powered vehicle | |
| CN211494371U (en) | Pedal force detection mechanism, drive device, hub device, and power-assisted bicycle | |
| TWI532641B (en) | Electric bicycle drive assembly | |
| CN106904243B (en) | Electric bicycle transmission device and electric bicycle with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |