CN209541960U - Torsion formula axis double-side torque sensor and Moped Scooter - Google Patents
Torsion formula axis double-side torque sensor and Moped Scooter Download PDFInfo
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- CN209541960U CN209541960U CN201920683096.4U CN201920683096U CN209541960U CN 209541960 U CN209541960 U CN 209541960U CN 201920683096 U CN201920683096 U CN 201920683096U CN 209541960 U CN209541960 U CN 209541960U
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Abstract
The utility model provides a kind of torsion formula axis double-side torque sensor and Moped Scooter.Torsion formula axis double-side torque sensor includes axis and inductive component, and axis includes mandrel, axle sleeve and torque sleeve, and torque sleeve is set to outside mandrel and forms non-rotating connection with mandrel, and axle sleeve position is fixed and is sheathed on outside torque sleeve；Inductive component includes torque sensing part, the first magnetic strength part and the second magnetic strength part, torque sensing part, which is set in torque sleeve, covers upper torsion for sensing torque, first magnetic strength part is fixed on mandrel non-rotatingly and is electrically connected with torque sensing part, second magnetic strength part is set on axle sleeve, when first magnetic strength part is rotated relative to the second magnetic strength part, it is capable of forming induced field current therebetween.Moped Scooter includes torsion formula axis double-side torque sensor.Torsion formula axis double-side torque sensor and Moped Scooter have that moment inspecting reaction speed is fast, precision is high, reproducible, simple and reliable for structure, can sense the advantages of both feet trample torque in real time.
Description
Technical field
The utility model relates to torque sensor field more particularly to a kind of torsion formula axis double-side torque sensors and electronic
Vehicle using motor.
Background technique
Electric assisted bicycle is a kind of tool of riding between bicycle and electric vehicle, by by manpower and electricity
The mode of the power of motivation output power in proportion assists manpower to be supplied to cyclery required kinetic energy in, it is people
Pursue the product of efficient, convenient, healthy, environmentally friendly life style.
Wherein, torque sensor is the core component of Moped Scooter.Torque sensor is for inductively measuring bicyclist's
It rides torque, provides judgement basis for the power output of electrical driving unit.Torque sensor perceptually bicyclist be intended to
Component, performance are most important.
The similar torque sensor for turning round shaft type disclosed in existing market is usually that strain ga(u)ge is pasted onto axis central spindle
On, the axis torque sensor manufactured in this way is unilateral torque sensor, i.e., people can feel when riding, only a foot is trampled
Measuring moment, another foot, which tramples crank, cannot sense torque.And since the strain ga(u)ge of sensing strain is affixed directly to
In axis central spindle, therefore sense the interference of other deformations when data are easy to be trampled, such as the bending of axis central spindle, vibration of riding
Necessary being is not but the power sensed required for torque sensor, so that accurate sensing can not be formed to torque of riding.
Utility model content
It is existing to overcome in view of this, the present invention provides torsion formula axis double-side torque sensor and Moped Scooter
Bilateral measurement and the low technical problem of torgue measurement precision can not be formed present in technology to torque.
For this purpose, the purpose of this utility model is achieved through the following technical solutions: formula axis double-side torque sensor is turned round, including
Axis and inductive component；
Axis includes mandrel, axle sleeve and torque sleeve, and the torque sleeve is set to outside the mandrel and is formed with the mandrel non-
Revolution connection, the axle sleeve position is fixed and is sheathed on outside the torque sleeve；
Inductive component includes torque sensing part, the first magnetic strength part and the second magnetic strength part, and the torque sensing part is set to described
For sensing torsion in the torque sleeve in torque sleeve, the first magnetic strength part non-rotatingly fixation on the mandrel and with
The torque sensing part is electrically connected, and the second magnetic strength part is set on the axle sleeve, the first magnetic strength part and described
When second magnetic strength part relatively rotates, it is capable of forming induced field current therebetween.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the first magnetic strength part is to lead
Body, the second magnetic strength part are energization induction coil.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the second magnetic strength part be around
The planar coil of coil or moment on circuit boards.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the torque sensing part is patch
Foil gauge in the torque sleeve.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the torque sleeve is circumferentially set
There is 1~4 foil gauge.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the bilateral power of torsion formula axis
Square sensor further includes power output shaft, and the power output shaft is connected to non-rotatingly in the torque sleeve.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the mandrel and the torque
Spline connection is formed between set, and spline connection is formed between the torque sleeve and the power output shaft.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the bilateral power of torsion formula axis
Square sensor further includes the rotating ring that tests the speed, and the rotating ring that tests the speed is set to the side of the first magnetic strength part；
When the rotating ring that tests the speed is rotated relative to the first magnetic strength part, it is capable of forming induced field current therebetween.
As the further alternative scheme of the torsion formula axis double-side torque sensor, the bilateral power of torsion formula axis
Square sensor further includes damping damping ring, and the damping damping ring is set to the torque sleeve both ends.
As the further extension to above-mentioned technical proposal, the utility model also provides Moped Scooter, including vehicle frame, song
Handle and above-mentioned any torsion formula axis double-side torque sensor, are formed on the vehicle frame five logical, and the axle sleeve is inserted in
Described five it is logical in and it is fixed, the both ends of the mandrel from described five it is logical in expose and connect respectively with a crank.
The torsion formula axis double-side torque sensor and Moped Scooter of the utility model have the following beneficial effects:
By setting torque sleeve, the influence of the deformation strains power such as bending deformation, vibration of the mandrel of axis is avoided, and
Realizing that left and right foot is trampled to ride can continuously sense the purpose for torque of riding, while the supply of electric signal is realized using electromagnetic induction
With transmission, wireless transmission is improved by electromagnetic interference and transmission signal decaying on the way, shadow caused by precision is sensed to torque
Ring, have moment inspecting reaction speed is fast, precision is high, reproducible, the advantages of both feet trample torque can be sensed in real time.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 shows the torsion formula axis double-side torque sensor of the offer of the utility model embodiment 1 and sprocket wheel and crankshaft are pacified
The structural schematic diagram of dress；
Fig. 2 shows a kind of overall structures for torsion formula axis double-side torque sensor that the utility model embodiment 1 provides
Schematic diagram；
Fig. 3 shows the whole knot of another torsion formula axis double-side torque sensor of the offer of the utility model embodiment 1
Structure schematic diagram；
Another entirety for turning round formula axis double-side torque sensor that Fig. 4 shows the offer of the utility model embodiment 1 is tied
Structure schematic diagram；
Fig. 5 shows the cross-section structure signal of the torsion formula axis double-side torque sensor of the offer of the utility model embodiment 1
Figure；
Fig. 6 shows the decomposition texture signal of the torsion formula axis double-side torque sensor of the offer of the utility model embodiment 1
Figure；
Fig. 7 shows the exploded structure of the torsion formula axis double-side torque sensor of the offer of the utility model embodiment 1
Schematic diagram；
Fig. 8 shows the first magnetic strength part of the torsion formula axis double-side torque sensor of the offer of the utility model embodiment 1, the
The fixed structure schematic diagram of two magnetic strength parts.
Main element symbol description:
100- torque sensor；
110- mandrel；120- torque sleeve；130- axle sleeve；140- power output shaft；
150- first axle bowl assembly；151- first axle bowl；152- first bearing；The first sealing ring of 153-；
160- the second axis bowl assembly；161- the second axis bowl；162- second bearing；The second sealing ring of 163-；
The first circlip for shaft of 171-；172- spacing shim；173- the first damping damping ring；The second damping of 174- damping
Ring；175- exports Simmer ring；176- axle elastic spring；The second circlip for shaft of 177-；
180- torque sensing part；
191- the first magnetic strength part；192- the second magnetic strength part；193- fixed hub；194- tests the speed rotating ring；
200- sprocket wheel.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Embodiment 1
The utility model provides a kind of torsion formula axis double-side torque sensor, hereinafter referred to as torque sensor.Such as Fig. 1 institute
Showing, torque sensor 100 can be applied on Moped Scooter, bilateral pedal force suffered by the crankshaft of left and right can be sensed, from
And reasonable matching further can be formed to power of riding.
Torque sensor 100 includes axis and inductive component.Axis be mounted on the vehicle frame of Moped Scooter five it is logical in
For connecting the transmission parts of left and right crank/left and right pedal crank and sprocket wheel 200, the torsion that left and right crank is subject to is transferred to
On sprocket wheel 200.Inductive component includes electric induction and torque sensing, and electric induction is used to power and receive the feedback electricity of torque sensing
Stream, to obtain torsion with contactless electromagnetic induction, torque sensing is for incuding torsion suffered by axis, i.e. left and right crank institute
The torsion received is to obtain pedal force of riding.
The structure type of axis is numerous, typically includes the types such as square hole axis, spline axis.In it is understood that
Axis be designed to the consistent structure of general axis, in order to carry out complete interchangeable peace on the bicycle with general middle shaft structure
Dress applies difficulty to reduce.Fig. 2~4 show several frequently seen middle shaft structure, i.e., with externally threaded square hole axis, with interior spiral shell
Square hole axis, the spline axis of line.
Also referring to Fig. 5~6, in the present embodiment, axis includes mandrel 110, torque sleeve 120 and axle sleeve 130.Torque sleeve
120 are set to outside mandrel 110 and form non-rotating connection with mandrel 110, and 130 position of axle sleeve is fixed and is sheathed on outside torque sleeve 120.
Axle sleeve 130 be fixed on five it is logical in, mandrel 110 and torque sleeve 120 can be rotated relative to axle sleeve 130, and the both ends of mandrel 110 can
From five logical middle exposings, for being connect with crankshaft.Torsion suffered by mandrel 110 is the torsion that crank is applied, the power of crank by
Pedal applies, and by pedal linkage crankshaft band, moving mandrel 110 is rotated.
In the present embodiment, torque sensor 100 further includes power output shaft 140 and axis bowl assembly.Power output shaft 140 is non-
It is pivotally connected in torque sleeve 120, and is connect with sprocket wheel 200, the torsion of torque sleeve 120 is transferred on sprocket wheel 200, torque
Set 120 is arranged between power output shaft 140 and mandrel 110, as the power-transmitting part between mandrel 110 and output shaft,
Driving torque is the input torque of mandrel 110.The quantity of axis bowl assembly is two, is separately positioned on 130 both ends of axle sleeve, is divided into
First axle bowl assembly 150 and the second axis bowl assembly 160.The left side of torque sensor 100 is arranged in first axle bowl assembly 150, with
The left side of axle sleeve 130 engages, and the right side of torque sensor 100, the right side with axle sleeve 130 is arranged in the second axis bowl assembly 160
End face engages.
First axle bowl assembly 150 includes first axle bowl 151, first bearing 152 and the first sealing ring 153, first bearing 152
Between mandrel 110 and first axle bowl 151, the first sealing ring 153 is arranged between first bearing 152 and mandrel 110, is used for
So that the good sealing between first axle bowl 151 and mandrel 110.Second axis bowl assembly 160 includes the second axis bowl 161, second
Bearing 162 and the second sealing ring 163, second bearing 162 are set between power output shaft 140 and the second axis bowl 161, the second sealing
Circle 163 is arranged between second bearing 162 and mandrel 110, for so that good between the second axis bowl 161 and sprocket wheel 200
Sealing.First bearing 152 and second bearing 162 can be deep groove ball bearing.
It is respectively equipped with the five logical structures being connected with bicycle on first axle bowl 151 and the second axis bowl 161, can be outer
Screw thread, by be threaded into be fixed on five it is logical in.Thus axis is fixed on five to lead to, and enables mandrel 110 by crank
Rotation in logical five is driven, and is output power on the sprocket wheel 200 of bicycle by power output shaft 140.
Torque sensor 100 further include the first circlip for shaft 171 being sheathed on mandrel 110, spacing shim 172,
First damping damping ring 173, the second damping damping ring 174, output Simmer ring 175, axle elastic spring 176, and be arranged
In the second circlip for shaft 177 outside power output shaft 140.The functional sensor parts of torque sensor 100 are in mandrel 110
Axial direction successively assemble.
The first circlip for shaft 171, spacing shim 172 and are successively arranged between first bearing 152 and torque sleeve 120
One damping damping ring 173.The second damping damping ring 174, power output shaft are equipped between torque sleeve 120 and power output shaft 140
Output Simmer ring 175 is equipped between 140 and mandrel 110,140 end face of power output shaft is equipped with axle elastic spring 176, moves
Power output shaft 140 is externally provided with the second circlip for shaft 177.
Mandrel 110 is equipped with annular groove, and the first circlip for shaft 171 is embedded in the annular groove, and then realizes
The fixation of axial position on mandrel 110.First circlip for shaft 171 limits first bearing with first axle bowl 151 jointly
152 axial position, and limit moving to left for spacing shim 172.Pass through the sandwiched between spacing shim 172 and torque sleeve 120
First damping damping ring 173, the second damping of sandwiched damping ring 174 between torque sleeve 120 and power output shaft 140, to disappear
In addition to the fit-up gap of torque sleeve 120, play the role of limit and reduce to vibrate to the axial direction of torque sleeve 120, so that torque
The strain signal of 120 measurement of set is more stable.
Power output shaft 140 is in ladder shaft-like, and big end is sheathed on outside torque sleeve 120, and small end is sheathed on outside mandrel 110, small
Outer sheath is held to be equipped with second bearing 162, torque sleeve 120 and second bearing 162 limit the axial movement of power output shaft 140.
Output Simmer ring 175, axle elastic spring 176 between power output shaft 140 and mandrel 110 eliminate power output shaft
Gap between 140 and mandrel 110, so that the power output of power output shaft 140 is more stable.Second circlip for shaft
177 are sheathed on outside power output shaft 140, and power output shaft 140 is externally provided with annular groove, and the second circlip for shaft 177 is embedded
Axial position of the sprocket wheel 200 on power output shaft 140 is fixed to realize in the annular groove.
Form spline fitted between torque sleeve 120 and mandrel 110, torque sleeve 120 is equipped with internal spline, right on mandrel 110
External splines is equipped with answering, by engaging between torque sleeve 120 and mandrel 110, so that the two forms uniform and stable non-rotating company
It connects, thus bicyclist's either left foot tramples crank or right crus of diaphragm tramples crank, and pedal force can be transferred to by mandrel 110
In torque sleeve 120, so that torque sensor 100 becomes a kind of axis double-side torque sensor 100.
Spline fitted is formed between torque sleeve 120 and power output shaft 140, torque sleeve 120 is equipped with external splines, and power is defeated
Internal spline is accordingly equipped on shaft 140, by engaging for torque sleeve 120 and power output shaft 140, so that the two is formed uniformly
Stable non-rotating connection exports to continue to send the power in torque sleeve 120 to power output shaft 140.
Spline fitted is formed between power output shaft 140 and sprocket wheel 200, power output shaft 140 is equipped with external splines, sprocket wheel
Internal spline is accordingly equipped on 200, by the kernel of power output shaft 140 and sprocket wheel 200 so that the two formed it is uniform and stable
Non-rotating connection, thus by trample crank it is dynamically stable be transmitted to sprocket wheel 200, and final output is to cycle wheel.
As shown in fig. 7, inductive component includes torque sensing part 180, the first magnetic strength part 191 and the second magnetic strength part 192.Torsion
Induction pieces 180 are set to for sensing the torsion in torque sleeve 120 in torque sleeve 120, and the first magnetic strength part 191 is fixed on non-rotatingly
It is electrically connected in torque sleeve 120 and with torque sensing part 180, the second magnetic strength part 192 is set on axle sleeve 130, the first magnetic strength
When part 191 and the second magnetic strength part 192 relatively rotate, it is capable of forming induced field current therebetween.
Torque sensing part 180 is by the deformation of induced moment set 120 thus to torque sleeve 120, i.e., suffered by mandrel 110
Torsion forms sensing.Torque sensing part 180 is a kind of electrical components, and the supply for needing electric current thereon can work,
And it equally embodies the electric current of different torsion in different sizes, i.e., torque sensing part 180 is existing when sensing torsion
The input of electric current also has the output of electric current.Pass through the electric connection of torque sensing part 180 and the first magnetic strength part 191, torque sensing
The electric current of part 180 is output and input by the first magnetic strength part 191.First magnetic strength part 191 is rotated with the rotation of mandrel 110,
Second magnetic strength part 192 is fixed on axle sleeve 130, and as relative frame position is fixed, the second magnetic strength part 192 by conducting wire with it is electronic
The controller of vehicle using motor connects, and takes electricity from controller and the torque current that torque sensor 100 is sensed is fed back to controller.
First magnetic strength part 191 rotates together with mandrel 110, relatively rotates to be formed with the second magnetic strength part 192, the two
Cutting magnetic induction line movement has occurred when relatively rotating, so that foring induced field current therebetween, forms non-connect
The electric connection of touch, electric current can flow between the first magnetic strength part 191 and the second magnetic strength part 192.
It is above-mentioned, by being arranged on mandrel 110 for sensing the torque sleeve 120 for trampling torque, to avoid the curved of mandrel 110
The influence of the deformation strains power such as song deformation, vibration, and realize that left and right foot is trampled to ride and can continuously sense the mesh for torque of riding
, achieve the effect that bilateral sensing torque.
As shown in figure 8, the first magnetic strength part 191 is fixed in torque sleeve 120 by fixed hub 193, it is specifically as follows solid
Dead axle set 193 is connected in torque sleeve 120 non-rotatingly, and fixed hub 193 is made of insulating material, can be such as plastics
The axial slight sliding of torque sleeve 120, but the two is relatively unrotatable.First magnetic strength part 191 can be fixed on fixed hub 193
On, the first magnetic strength part 191 can also be connected to non-rotatingly on fixed hub 193.So that the first magnetic strength part 191 and torque
Set 120 rotates together, and in bicyclist to step on frequency speed, direction consistent.
Second magnetic strength part 192 is fixed by snap on axle sleeve 130, and axle sleeve 130 is mounted in bicycle bottom bracket and fixes, i.e.,
It is logical interior for 192 fixing piece five of the second magnetic strength part.It forms between first magnetic strength part 191 and the second magnetic strength part 192 and is stepped on bicyclist
Frequency speed, the consistent relative rotation in direction.
Further, induction coil, 191 He of the first magnetic strength part are equipped between the first magnetic strength part 191 and the second magnetic strength part 192
Circuit board is equipped on second magnetic strength part 192, the first magnetic strength part 191 is formed by circuit board thereon with torque sensing part 180
It is electrically connected, the second magnetic strength part 192 is electrically connected by circuit board thereon with the power supply line accessed from axle sleeve 130.
In the present embodiment, induction coil is to be separately fixed on 192 left side of 191 right side of the first magnetic strength part and the second magnetic strength part
Circuit board on the planar coil that is etched, the induction coil is also possible to coiling in other examples.In the first magnetic
When feeling part 191 and the relative rotation of the second magnetic strength part 192, by well known electromagnetic theory it is found that the first magnetic strength part 191 and the second magnetic strength
The conversion and exchange that electric signal and power supply can be carried out between part 192, form mutual inducing current, thus by needed for torque sensing part 180
Sensing power supply and sensing electric signals exported by non-contacting mode.
By above-mentioned power transfer path it is found that this torque sensor 100 it is a kind of can real-time measurement or so foot trample
Double-side torque sensor 100, torque sleeve 120 has been respectively subjected to the input power of bicyclist and 200 bring bicycle of sprocket wheel is ridden
Row load.Torque sensing part 180 is the foil gauge being attached in torque sleeve 120, and 120 surface of torque sleeve is equipped with for pasting strain
The plane of piece, the foil gauge can be strain ga(u)ge, be also possible to piezoresistive strain gauge.Foil gauge can sense its stickup
The strain value with load variation of torque sleeve 120, and the strain value is exported in the form of electric signal/electric current, and shows good
Good linear relationship.100 part of this torque sensor is few, stable connection, reliable, is a kind of good linearity, the high power of measurement accuracy
Square sensor 100.
Stickup quantity of the foil gauge in the circumferential direction of torque sleeve 120 can be 1~4, mutually in 90 ° or symmetrical.Group
At the bridge-type measuring circuit of single armed, half-bridge or full-bridge, to realize the requirement of different detection accuracy or compensation circuit, as temperature is mended
It repays, linear compensation etc., to adapt to the usage scenario environment of various high/low temperatures without seriously affecting torque sensing precision and linear closing
System.
The electric signal of the strain bridge of foil gauge composition is input to the rotating excitation on the right side of it after the first magnetic strength part 191
Coil (the present embodiment is that PCB plane etches coil), and generate magnetic flux corresponding with strain measurement signal, the second magnetic strength
The signal detection coil (this embodiment is that PCB plane etches coil) in 192 left side of part, due to being rotated on the right side of the first magnetic strength part 191
The variation of magnet exciting coil (this embodiment is that PCB plane etches coil) magnetic flux generates new electric signal, at signal amplification
After reason, peripheral control unit is transmitted to by sensor signal lead-out wire, controller, which reaches reasonable distribution electricity by calculation process, to be helped
The motor power of power vehicle exports.
In the present embodiment, the right side in the left side of the first magnetic strength part 191, first axle bowl 151 is equipped with the rotating ring 194 that tests the speed, and tests the speed
Rotating ring 194 is made of magnetic separator/non-magnet material, such as stainless steel, aluminium.Circumference is equal in the right end face of rotating ring 194 that tests the speed
Cloth is embedded in several magnetic beads, while testing the speed to be formed between rotating ring 194 and first axle bowl 151 and snap connection, and thus test the speed rotating ring 194
It is formd between the first magnetic strength part 191 and the consistent relative rotation of bicyclist's speed and direction.
Further, the left side of the first magnetic strength part 191 is equipped with several Hall sensor chips, when rotating ring 194 and the of testing the speed
When the intersexuality of one magnetic strength part 191 is to rotation, can measure bicyclist steps on frequency speed and direction, and can pass through the first magnetic strength part
191 feed back to the speed signal on the second magnetic strength part 192, and then are transferred to controller.Controller frequency speed and is stepped on according to stepping on
The control program that bearing data is written by controller itself is stepped on to judge the intention of perception bicyclist, control motor is reasonable
Output or cutting auxiliary power.
In conclusion this torque sensor 100, which can be implemented, continuously detects that the bilateral of bicyclist tramples torque, and
It the higher detection electric signal of output accuracy, the linearity and steps on frequency speed, step on the data such as frequency direction；It can also be answered according to different
The temperature and linear compensation of detection electric signal are made with environment, these data can accurately judge after controller is handled
With the riding condition and intention for perceiving out bicyclist, and ratio is exported come reasonable distribution bicyclist and motor power by controller
Example.Guarantee riding safety, reasonable distribution bicyclist's physical strength, so that bicyclist be made to obtain persistently good experience of riding.And this power
Square sensor 100 is reliable and stable since structure is simple, and the temperature change that is very suitable to ride is big, the biggish application scenarios of vibration.
Meanwhile torque sensor 100 realizes the non-contacting work that signal transmits using electromagnetic induction power supply, coil mutual inductance
Make mode, structure is simple, the service life is long, high reliablity, does not need brush or power spring, is not easily susceptible to wear, and has smaller prolong
When, the deflection by axis and axial deformation influenced smaller, signal reaction speed is fast, strong interference immunity.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. turning round formula axis double-side torque sensor characterized by comprising
Axis, including mandrel, axle sleeve and torque sleeve, the torque sleeve are set to outside the mandrel and are formed with the mandrel non-rotating
Connection, the axle sleeve position is fixed and is sheathed on outside the torque sleeve；And
Inductive component, including torque sensing part, the first magnetic strength part and the second magnetic strength part, the torque sensing part are set to the torque
Put on for sensing the torsion in the torque sleeve, the first magnetic strength part non-rotatingly it is fixed on the mandrel and with it is described
Torque sensing part is electrically connected, and the second magnetic strength part is set on the axle sleeve, the first magnetic strength part relatively described the
When two magnetic strength parts rotate, it is capable of forming induced field current therebetween.
2. torsion formula axis double-side torque sensor according to claim 1, which is characterized in that the first magnetic strength part and institute
It states and is equipped with induction coil between the second magnetic strength part.
3. torsion formula axis double-side torque sensor according to claim 2, which is characterized in that the induction coil is coiling
Circle or the planar coil on circuit board.
4. torsion formula axis double-side torque sensor according to claim 1, which is characterized in that the torque sensing part is patch
Foil gauge in the torque sleeve.
5. torsion formula axis double-side torque sensor according to claim 4, which is characterized in that the torque sleeve is circumferentially set
There is 1~4 foil gauge.
6. torsion formula axis double-side torque sensor according to claim 1, which is characterized in that the bilateral power of torsion formula axis
Square sensor further includes power output shaft, and the power output shaft is connected to non-rotatingly in the torque sleeve.
7. torsion formula axis double-side torque sensor according to claim 6, which is characterized in that the mandrel and the torque
Spline connection is formed between set, and spline connection is formed between the torque sleeve and the power output shaft.
8. torsion formula axis double-side torque sensor according to claim 1, which is characterized in that the bilateral power of torsion formula axis
Square sensor further includes the rotating ring that tests the speed, and the rotating ring that tests the speed is set to the side of the first magnetic strength part；
When the rotating ring that tests the speed is rotated relative to the first magnetic strength part, it is capable of forming induced field current therebetween.
9. torsion formula axis double-side torque sensor according to claim 1, which is characterized in that the bilateral power of torsion formula axis
Square sensor further includes damping damping ring, and the damping damping ring is set to the torque sleeve both ends.
10. Moped Scooter, which is characterized in that including in vehicle frame, crank and torsion formula as claimed in any one of claims 1-9 wherein
Axis double-side torque sensor, be formed on the vehicle frame it is five logical, the axle sleeve be inserted in described five it is logical in and fixed, the mandrel
Both ends from described five it is logical in expose and connect respectively with a crank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920683096.4U CN209541960U (en) | 2019-05-10 | 2019-05-10 | Torsion formula axis double-side torque sensor and Moped Scooter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920683096.4U CN209541960U (en) | 2019-05-10 | 2019-05-10 | Torsion formula axis double-side torque sensor and Moped Scooter |
Publications (1)
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| WO2023000539A1 (en) * | 2021-07-22 | 2023-01-26 | 珠海市钧兴机电有限公司 | Torsion sensor for moped scooter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023000539A1 (en) * | 2021-07-22 | 2023-01-26 | 珠海市钧兴机电有限公司 | Torsion sensor for moped scooter |
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