CN219487666U - Sensor structure of chainless transmission bicycle - Google Patents
Sensor structure of chainless transmission bicycle Download PDFInfo
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- CN219487666U CN219487666U CN202320225131.4U CN202320225131U CN219487666U CN 219487666 U CN219487666 U CN 219487666U CN 202320225131 U CN202320225131 U CN 202320225131U CN 219487666 U CN219487666 U CN 219487666U
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- 238000012545 processing Methods 0.000 description 3
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Abstract
The utility model relates to a sensor structure of a chainless transmission bicycle, which comprises a five-way body, wherein a pedal center shaft is penetrated and arranged, the pedal center shaft is connected with a spline housing, the spline housing is provided with a five-way gear, a strain gauge is attached to the peripheral wall of the spline housing, a circuit board female clamping sleeve is inserted into a protective housing, an inductor female circuit board is clamped between the circuit board female clamping sleeve and the protective housing, the pedal center shaft is penetrated and arranged with a circuit board male clamping sleeve, the circuit board male clamping sleeve is connected with an inductor male circuit board, the inductor male circuit board is connected with a magnet toothed ring, and the inductor female circuit board is correspondingly connected with a tooth number inductor.
Description
Technical Field
The utility model relates to the technical field of electric power-assisted vehicles, in particular to a sensor structure of a chainless transmission bicycle.
Background
The electric moped is a personal vehicle which not only has the light weight and convenience of the moped, but also can effectively make up the burden sense of the moped when the moped ascends, upwind and carries objects. The control technology of the electric power assisted vehicle is closely related to riding experience of a rider, so that the control technology of the electric power assisted vehicle has research and use values.
The existing electric power-assisted vehicle control technology mostly collects moment values generated by stepping on pedals by a person through a rear hook sensor, and achieves power-assisted output control of a driving device. However, the rear knuckle sensor is arranged at the rear end of the moped, the pedaling force of a person needs to be transmitted to the sensor through a crank, a chain wheel and a chain, and the intermediate passing links are excessive, so that the sensing stress moment value is inaccurate and the test is delayed, the control precision of the power-assisted output of the moped driving device is poor, the response speed is low, and the riding experience of a rider is reduced.
Chinese patent publication: a control method and system of a power-assisted vehicle, bulletin number: CN109421883 proposes that the strain gauge is adopted to generate a resistance change to send back a signal to the controller in the process of pedal stress of the power-assisted vehicle, so as to control the output of power of the power-assisted vehicle, but the actual resistance condition of the wheel cannot be monitored accurately by monitoring the pedal stress condition, so that the monitoring cannot be very accurate.
Disclosure of Invention
The utility model aims at the defects and improves the prior art, and provides a sensor structure of a chainless transmission bicycle, which has the following technical scheme:
the sensor structure of the chainless transmission bicycle comprises a five-way body 1, a pedal center shaft 2 is penetrated in the middle of the five-way body 1, a spline sleeve 4 is connected with the pedal center shaft 2 through spline teeth 3, a five-way gear 5 is sleeved at one end of the spline sleeve 4, the five-way gear 5 is connected with the spline sleeve 4 through spline sleeve ratchets 6, strain gauges 7 are attached to the peripheral wall of the spline sleeve 4, a protective shell 8 is sleeved at the outer side, a supporting bearing 9 is arranged between one end of the protective shell 8 and the spline sleeve 4, a circuit board female clamping sleeve 10 is inserted at one end of the protective shell 8 opposite to the supporting bearing 9, an inductor female circuit board 11 is clamped between the circuit board female clamping sleeve 10 and the protective shell 8, a circuit board male clamping sleeve 12 is penetrated between the pedal center shaft 2 and the inductor female circuit board 11, one side of the circuit board male clamping sleeve 12 is connected with an inductor male circuit board 13, one side of the inductor male circuit board 13 is connected with a magnet toothed ring 14, and the inductor female circuit board 11 is correspondingly connected with a magnet tooth number 15.
The five-way body 1 comprises a five-way outer sleeve 16 and an end cover 17 connected to one end of the five-way outer sleeve 16, and sealing rings 18 are respectively connected between the five-way outer sleeve 16 and the pedal middle shaft 2 and between the end cover 17 and the pedal middle shaft 2.
Further, a movable bearing 20 is arranged between the pedal middle shaft 2 and the five-way outer sleeve 16.
The inner side of the five-way gear 5 is provided with a five-way tooth inner ratchet 19, and the five-way gear 5 and the spline housing 4 are driven in a matched manner through the meshing of the five-way tooth inner ratchet 19 and the spline housing ratchet 6, and movable bearings 20 are arranged between the spline housing 4 and the pedal center shaft 2 and between the five-way gear 5 and the end cover 17.
An oil seal ring 24 is arranged at one end, located at the support bearing 9, between the spline housing 4 and the protective housing 8.
Further, the pedal middle shaft 2 is provided with a buckle 25 for limiting the movable bearing at the movable bearing 20.
The circuit board female ferrule 10 is of a ladder-shaped structure, and the inner side of the circuit board female ferrule is communicated with the periphery and provided with a wire outlet hole 21.
The opposite end of the circuit board female ferrule 10, which is located at the inductor female circuit board 11, is sequentially provided with a sealing ring 18 and a sealing cover 22 from inside to outside.
One end of the pedal middle shaft 2, which is positioned at the circuit board female clamping sleeve 10, is buckled with a limiting buckle 23 for preventing the circuit board female clamping sleeve 10 from moving.
The sensor female circuit board 11 and the sensor male circuit board 13 are both hall sensors.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the torsion sensor mechanism and the speed sensor mechanism are added into the center shaft transmission structure to acquire variable signal data to control electric power assistance, so that the proportional control of pedal force and electric power assistance is realized, the aim of saving energy and prolonging endurance is achieved, riding comfort is improved, the torsion sensor mechanism can accurately sense the data signal of pedal torque, the uphill can effectively and repeatedly drive during riding, and the downhill can easily and slightly complement drive.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present utility model, the following description of the embodiments will briefly describe the drawings that are required to be used in the description:
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a left side view of the present utility model;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3;
FIG. 5 is an internal block diagram of the speed sensor mechanism;
FIG. 6 is an exploded view of the present utility model;
comprising the following steps: 1. a five-way body; 2. a pedal center shaft; 3. spline teeth; 4. a spline housing; 5. a five-way gear; 6. ratchet teeth of the spline housing; 7. a strain gage; 8. a protective shell; 9. a support bearing; 10. a circuit board female ferrule; 11. an inductor mother circuit board; 12. a circuit board male ferrule; 13. an inductor male circuit board; 14. a magnet toothed ring; 15. a tooth number sensor; 16. a five-way jacket; 17. an end cap; 18. a seal ring; 19. five-way inner teeth; 20. a movable bearing; 21. a wire outlet hole; 22. a cover; 23. limiting buckle; 24. an oil seal ring; 25. and (5) a buckle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Embodiments of the present utility model will be described in further detail below with reference to the attached drawings, as follows:
the sensor structure of the chainless transmission bicycle comprises a five-way body 1, wherein a pedal middle shaft 2 is penetrated in the middle of the five-way body 1, a spline sleeve 4 is connected with the pedal middle shaft 2 through spline teeth 3, one end of the spline sleeve 4 is sleeved with a five-way gear 5, the five-way gear 5 is connected with the spline sleeve 4 through spline sleeve ratchet 6, a strain gauge 7 is attached to the peripheral wall of the spline sleeve 4, a protective shell 8 is sleeved on the outer side, a support bearing 9 is arranged between one end of the protective shell 8 and the spline sleeve 4, one end of the protective shell 8, opposite to the support bearing 9, is inserted with a circuit board female clamping sleeve 10, an inductor female circuit board 11 is clamped between the circuit board female clamping sleeve 10 and the protective shell 8, a circuit board male clamping sleeve 12 is penetrated between the pedal middle shaft 2 and the spline sleeve 4, one side of the circuit board male clamping sleeve 12 is connected with an inductor male circuit board 13, one side of the inductor male circuit board 13 is connected with a magnet tooth ring 14, and the inductor female circuit board 11 is connected with an inductor 15 corresponding to the magnet tooth ring 14.
When riding the pedal, pedal axis 2, circuit board public cutting ferrule 12, inductor public circuit board 13, magnet ring gear 14, spline housing 4, spline tooth 3, spacing buckle 23 and foil gage 7 rotate, and torsion sensor mechanism responds to pedal torsion, and when pedal afterbody was given to pedal axis 2, pedal axis 2 passed through spline tooth 3 and spline combination of spline housing 4, transmitted power to spline housing 4, spline housing 4 right-hand member had installed a spline housing ratchet 6 to through the five-way tooth internal ratchet meshing of spline housing ratchet 6 and five-way gear 5, make power drive five-way gear 5 rotatory. The five-way gear 5 outputs power to a rear wheel (not shown) through two sets of bevel gears. The strain gauge 7 is attached to the outer circle of the spline housing 4, when the spline housing 4 receives force, extremely tiny torsion deformation is generated to act on the strain gauge 7, a signal collector for collecting tiny deformation signals of the strain gauge 7 is arranged at the left end of the spline housing 4, and the moment when the spline housing 4 is trampled can be obtained through operation, so that the moment output of a driving motor is controlled through the moment signal (the spline housing 4 has certain deformation capacity and is a steel part, and the spline housing 4 is in a rotating state when riding and pedaling).
Speed sensor mechanism: when the pedal is applied to the pedal center shaft 2, the circuit board male ferrule 12 is sleeved on the pedal center shaft 2 to rotate, the circuit board male ferrule 12 is sleeved with the sensor male circuit board 13 to follow, the magnet toothed ring 14 is clamped and fixed in the protective shell 8 through the circuit board female ferrule 10 to prevent rotation, the magnet toothed ring 14 rotates and the tooth number sensors 15 mutually sense the number of teeth, the tooth number sensors 15 sense the magnet toothed ring 14 to acquire signals, the utility model senses the number of teeth of a digital magnet to output signals, and then the speed is controlled.
The five-way body 1 comprises a five-way outer sleeve 16 and an end cover 17 connected to one end of the five-way outer sleeve 16, sealing rings 18 are respectively connected between the five-way outer sleeve 16 and the pedal middle shaft 2 and between the end cover 17 and the pedal middle shaft 2, and a movable bearing 20 is arranged between the pedal middle shaft 2 and the five-way outer sleeve 16.
The inner side of the five-way gear 5 is provided with a five-way tooth inner ratchet 19, the five-way gear 5 is meshed with a spline sleeve ratchet 6 through the five-way tooth inner ratchet 19, so that the five-way gear 5 is matched and driven with the spline sleeve 4, movable bearings 20 are arranged between the spline sleeve 4 and a pedal middle shaft 2 and between the five-way gear 5 and an end cover 17, an oil seal ring 24 is arranged at one end of the support bearing 9 between the spline sleeve 4 and a protective shell 8, a buckle 25 for limiting the movable bearings is arranged at the position of the movable bearings 20, a limiting buckle 23 for preventing the movement of the circuit board mother card sleeve 10 is buckled at one end of the pedal middle shaft 2, the limiting buckle 23 is rigidly limited, the strength of a propping-up sealing cover 22 is high, and a limiting buckle 25 is pushed into the movable bearings 20 for limiting the meshed pedal middle shaft 2; the oil seal ring 24 is sleeved in the protective shell 8, and is used for sealing the range from the left outer side of the spline housing 4 to the inner cavity of the protective shell 8, preventing electronic device corrosion, including the strain gauge 7, and the limiting buckle 23 is used for limiting the circuit board male clamping sleeve 12 and the oil-proof function circuit board male clamping sleeve 12, so that the oil-proof left leakage function is realized.
The circuit board female ferrule 10 is of a ladder-shaped structure, the inner side of the circuit board female ferrule 10 is communicated with the periphery and provided with a wire outlet hole 21, and one opposite end of the circuit board female ferrule 10, which is positioned on the inductor female circuit board 11, is sequentially provided with a sealing ring 18 and a sealing cover 22 in a penetrating manner from inside to outside.
The sensor female circuit board 11 and the sensor male circuit board 13 both adopt Hall sensors.
According to the utility model, the torsion sensor mechanism and the speed sensor mechanism are added into the center shaft transmission structure to acquire variable signal data to control electric power assistance, so that the proportional control of pedal force and electric power assistance is realized, the aim of saving energy and prolonging endurance is achieved, riding comfort is improved, the torsion sensor mechanism can accurately sense the data signal of pedal torque, the uphill can effectively and repeatedly drive during riding, and the downhill can easily and slightly complement drive.
Moment transmission shaft principle: the electric booster bicycle has no chain torque transmission shaft, and its main components include middle shaft, shaft sleeve, gear, stress sensor, signal radio transmission and torque signal processing circuit. The torque signal and power supply collected on the shaft sleeve adopt a double-coil wireless power supply and wireless transmission torque signal and an electromagnetic coupling resonance wireless transmission mode, so that the dynamic torque signal of the rotation of the central shaft is changed into a static torque signal outside the central shaft, and the wired transmission and the processing are convenient. During riding, manpower is transmitted to the central shaft through the crank, the spline on the central shaft is connected with the shaft sleeve, the shaft sleeve is connected with the gear through the spline, the gear transmits the manpower to the rear wheel of the bicycle, meanwhile, the corresponding moment electric signal is generated by the foil sensor arranged on the shaft sleeve, the moment electric signal is transmitted to the receiving circuit outside the central shaft through wireless after being processed by the microcomputer, the receiving circuit outputs the signal to the motor controller after processing, the size of the output power of the motor is controlled, the proportional control of the pedaling force and the electric power assisting is realized, the aims of saving energy, prolonging the endurance are achieved, and the riding comfort level is improved.
Wherein: the working principle of the moment sensor is that the sensor can sense the physical change of the moment and convert the physical change into a signal capable of outputting and understanding, so that the moment is measured. The components of the material are as follows: the magnetic detector, torsion shaft, housing and drum. The torque sensor uses the concept of phase difference, the magneto-electric conversion principle and the measuring method of digital display in the working process, and the excellent installation position of the torque sensor enables the torque sensor to have excellent bearing capacity, and has outstanding effects on bearing pressure and measuring torque. When the middle shaft is stressed, extremely fine torsion deformation is generated, and the moment during trampling can be obtained by measuring some fine deformation signals on the surface of the middle shaft, so that the measurement accuracy is extremely high.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The sensor structure of the chainless transmission bicycle comprises a five-way body (1), a pedal center shaft (2) is penetrated in the middle of the five-way body (1), and is characterized in that the pedal center shaft (2) is connected with a spline sleeve (4) through spline teeth (3), one end of the spline sleeve (4) is sleeved with a five-way gear (5), the five-way gear (5) is connected with the spline sleeve (4) through spline sleeve ratchets (6), strain gauges (7) are attached to the peripheral wall of the spline sleeve (4), a protective shell (8) is sleeved on the outer side, a supporting bearing (9) is arranged between one end of the protective shell (8) and the spline sleeve (4), one end of the protective shell (8) opposite to the supporting bearing (9) is inserted with a circuit board female clamp sleeve (10), an inductor female circuit board (11) is clamped between the circuit board female clamp sleeve (10) and the protective shell (8), a circuit board male (12) is penetrated between the inductor female circuit board (11) and the spline sleeve (4), a magnet male circuit board (13) is connected with a male inductor clamp sleeve (13) on one side of the circuit board (13), the sensor mother circuit board (11) is connected with a tooth number sensor (15) corresponding to the magnet toothed ring (14).
2. The sensor structure of the chainless transmission bicycle according to claim 1, wherein the five-way body (1) comprises a five-way outer sleeve (16) and an end cover (17) connected to one end of the five-way outer sleeve (16), and sealing rings (18) are connected between the five-way outer sleeve (16) and the pedal center shaft (2) and between the end cover (17) and the pedal center shaft (2).
3. The sensor structure of the chainless transmission bicycle according to claim 2, characterized in that a movable bearing (20) is installed between the bottom bracket axle (2) and the five-way jacket (16).
4. The sensor structure of the chainless transmission bicycle according to claim 1, wherein the inside of the five-way gear (5) is provided with five-way inner teeth (19), and the five-way gear (5) and the spline housing (4) are driven in a matched manner through the engagement of the five-way inner teeth (19) and the spline housing ratchet (6), and movable bearings (20) are arranged between the spline housing (4) and the pedal center shaft (2) and between the five-way gear (5) and the end cover (17).
5. The sensor structure of a chainless transmission bicycle according to claim 1 or 4, characterized in that an oil seal (24) is mounted between the spline housing (4) and the protective shell (8) at one end of the support bearing (9).
6. The sensor structure of the chainless transmission bicycle according to claim 4, wherein the bottom bracket (2) is provided with a buckle (25) for limiting the movable bearing at the movable bearing (20).
7. The sensor structure of the chainless transmission bicycle according to claim 1, wherein the circuit board female ferrule (10) is of a ladder-like structure, and an inner side thereof is communicated with an outer periphery and provided with a wire outlet hole (21).
8. The sensor structure of a chainless transmission bicycle according to claim 1 or 7, wherein the circuit board female ferrule (10) is provided with a sealing ring (18) and a sealing cover (22) which are sequentially penetrated from inside to outside at opposite ends of the inductor female circuit board (11).
9. The sensor structure of the chainless transmission bicycle according to claim 1, wherein the bottom bracket (2) is fastened to a limiting buckle (23) for preventing the circuit board female ferrule (10) from moving at one end of the circuit board female ferrule (10).
10. The sensor structure of a chainless transmission bicycle according to claim 1, wherein the sensor female circuit board (11) and the sensor male circuit board (13) are both hall sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320225131.4U CN219487666U (en) | 2023-02-14 | 2023-02-14 | Sensor structure of chainless transmission bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320225131.4U CN219487666U (en) | 2023-02-14 | 2023-02-14 | Sensor structure of chainless transmission bicycle |
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| Publication Number | Publication Date |
|---|---|
| CN219487666U true CN219487666U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320225131.4U Active CN219487666U (en) | 2023-02-14 | 2023-02-14 | Sensor structure of chainless transmission bicycle |
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| Country | Link |
|---|---|
| CN (1) | CN219487666U (en) |
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2023
- 2023-02-14 CN CN202320225131.4U patent/CN219487666U/en active Active
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