CN117104386A - Electronic speed-changing closed-loop servo chain-shifting control device - Google Patents
Electronic speed-changing closed-loop servo chain-shifting control device Download PDFInfo
- Publication number
- CN117104386A CN117104386A CN202311213462.7A CN202311213462A CN117104386A CN 117104386 A CN117104386 A CN 117104386A CN 202311213462 A CN202311213462 A CN 202311213462A CN 117104386 A CN117104386 A CN 117104386A
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- servo
- speed change
- chain
- derailleur
- closed loop
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- 230000008859 change Effects 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000009471 action Effects 0.000 claims abstract description 4
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000004043 responsiveness Effects 0.000 abstract 1
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/08—Actuators for gearing speed-change mechanisms specially adapted for cycles with electrical or fluid transmitting systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The application relates to an electronic speed-changing closed-loop servo chain-shifting control device, which comprises a steel rope and a chain-shifting device, wherein one end of the steel rope is connected to the chain-shifting device, and the device also comprises: a bracket having a shift travel space inside; the servo speed change mechanism is arranged in the speed change stroke space and connected with the other end of the steel rope to control the derailleur to move the chain between the chain wheels; the driving piece is arranged on the bracket, and the output end of the driving piece is electrically connected with the servo speed change mechanism; the PWM main board is arranged on the bracket and is electrically connected with the driving piece to control the chain shifting action of the servo speed change mechanism in a closed loop manner; the finger-dialing handle is arranged on one side of the handlebar and is in wireless communication connection with the PWM main board. The application has high transmission efficiency, improves the responsiveness and the control precision by closed-loop control, can be fully adapted to chain derailleurs with different brands and different gears, and has higher social use value and application prospect.
Description
Technical Field
The application relates to the technical field of bicycle speed changing structures, in particular to an electronic speed changing closed loop servo chain shifting control device.
Background
A traditional speed changer applied to a bicycle is connected with a speed change deflector rod and a chain shifter through a sleeve pipe internally penetrated by a steel wire, the speed change deflector rod is manually shifted, and the steel wire is pulled by the deflector rod to control the chain shifter through a ratchet structure, so that the chain shifter moves a chain between chain wheels to realize speed change;
the traditional speed change structure is characterized in that a steel wire is required to travel along a bicycle frame in the transmission process, the steel wire is bent to cause larger resistance in the transmission process, a rider usually changes the speed according to experience, the shifting distance is not easy to control in the use process, and the pedaling efficiency is low, and the speed change device is damaged and damaged in movement are easy to cause; meanwhile, because the derailleurs of different brands and different gears are not compatible, the options for upgrading the riders are limited and the cost is high.
To this end, we propose an electronically variable closed loop servo derailleur control device.
Disclosure of Invention
The embodiment of the application provides an electronic speed-changing closed-loop servo chain-shifting control device, which at least solves the problems that in the prior art, the traditional speed-changing structure has larger resistance in the transmission process, a rider usually changes speed according to experience, the shifting distance is not easy to control in the use process, the trampling efficiency is low, and the speed-changing device is damaged and damaged in movement; meanwhile, because the derailleurs of different brands and different gears are not compatible, the options for upgrading the riders are limited, and the cost is high.
The application provides an electronic speed-changing closed-loop servo chain-shifting control device, which comprises a steel rope and a chain-shifting device, wherein one end of the steel rope is connected to the chain-shifting device, and the device also comprises: a bracket having a shift travel space inside; the servo speed change mechanism is arranged in the speed change stroke space and connected with the other end of the steel rope to control the derailleur to move the chain between the chain wheels; the driving piece is arranged on the bracket, and the output end of the driving piece is electrically connected with the servo speed change mechanism; the PWM main board is arranged on the bracket and is electrically connected with the driving piece to control the chain shifting action of the servo speed change mechanism in a closed loop manner; the finger-dialing handle is arranged on one side of the handlebar and is in wireless communication connection with the PWM main board.
Optionally, the servo speed change mechanism comprises: the screw rod is rotatably arranged in the speed change stroke space; the guide rods are at least one in number, fixed in the speed change stroke space and arranged in parallel with the screw rods; the sliding seat is arranged on the screw rod and the guide rod, is in threaded connection with the screw rod and is connected with the derailleur through a steel rope; the linear displacement sensor is arranged on the back side of the sliding seat.
Further, optionally, the sliding seat is provided with a port for fixing the steel rope, the end part of the bracket is provided with a through hole, and the steel rope connected with the derailleur is detachably fixed in the port after passing through the through hole.
Further optionally, the servo speed change mechanism further includes a travel groove disposed in the speed change travel space and fixed with the PWM main board, and the linear displacement sensor slides in the travel groove to feed back a travel position signal to the PWM main board in a closed loop.
Optionally, a battery mounting position for mounting the battery is arranged on the bracket, and the PWM main board is electrically connected with the battery in the battery mounting position.
Further optionally, the device further comprises a main machine shell, wherein the PWM main board, the bracket, the driving piece, the battery and the servo speed change mechanism are all arranged in the main machine shell, and the main machine shell is arranged on the frame.
Further optionally, the device further comprises a switch fixed on the bracket and extending out of the main casing to control the opening and closing of the device.
Optionally, the dial grip comprises: the device comprises three forward, reverse and middle finger-dialing keys, wherein the forward finger-dialing key and the reverse finger-dialing key are provided with a plurality of gears; the built-in battery is used for supplying power to the finger-dialing handle; the signal transmitting unit is used for receiving the pulse signals of the finger-dialing keys and wirelessly transmitting the pulse signals to the signal receiving unit on the PWM main board.
Further, optionally, a display screen for displaying current gear information is arranged on the dial handle.
Optionally, the driving piece is a direct current motor and is assembled in a motor installation position arranged on the bracket, the output end of the servo motor is connected with the input end of the speed reducing piece, and the output end of the speed reducing piece is connected with the screw rod.
The application has the following advantages:
according to the application, through the wireless communication control of the finger-dialing handle and the PWM main board, the wake-up of the PWM main board and the start of the driving piece are realized, so that the servo speed change mechanism is driven to pull or loosen the steel rope, the chain is controlled to move between the chain wheels to realize gear shifting, the complicated and long steel rope wiring is removed, the transmission efficiency is high, the response and the control precision are improved through closed-loop control, and the automatic transmission device can be fully adapted to the chain dialing devices with different brands and different gears; after gear shifting, the servo speed change mechanism has self-locking and positioning functions due to the movement mechanism of the sliding seat and the screw rod in the servo speed change mechanism, so that battery power in the device is effectively saved, and the standby time and the use time of the device are prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of the present application.
Fig. 2 is a front view of the structure of the present application.
Fig. 3 is a schematic perspective view of a second embodiment of the present application.
FIG. 4 is a schematic view of a part of the structure of the present application.
Reference numerals illustrate: the PWM main board 10, the bracket 20, the driving piece 30, the battery 40, the switch 50, the servo speed change mechanism 60, the port 601, the screw rod 602, the sliding seat 603, the guide rod 604, the travel groove 605 and the through hole 606.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Example 1
An electronic speed-changing closed-loop servo chain-shifting control device comprises a steel rope and a chain-shifting device, wherein one end of the steel rope is connected to the chain-shifting device, and the electronic speed-changing closed-loop servo chain-shifting control device further comprises: the bicycle comprises a main machine shell, a PWM main board 10, a bracket 20, a driving piece 30, a battery 40 and a servo speed change mechanism 60, wherein the PWM main board 10, the bracket 20, the driving piece 30, the battery 40 and the servo speed change mechanism 60 are all arranged in the main machine shell, and the main machine shell is arranged on a bicycle frame;
a bracket 20 fixed in the main housing and having a shift travel space 201 therein; further, the power supply adopts two forms of direct power supply by the electric vehicle battery or standard lithium battery power supply, in this embodiment, a battery installation position for installing the battery 40 is arranged on the bracket 20, the PWM main board 10 is electrically connected with the battery 40 in the battery installation position, and the battery 40 is a standard lithium battery.
A servo speed change mechanism 60 disposed in the speed change stroke space 201 and connected to the other end of the cable to control the derailleur to move the chain between the sprockets; in this embodiment, as shown in fig. 2 to 4, the servo speed change mechanism 60 includes: the screw rod 602 is rotatably installed in the speed change stroke space 201; the number of the guide rods 604 is two, and the guide rods are fixed in the speed change stroke space 201 and are arranged in parallel with the screw rod 602; the sliding seat 603 is arranged on the screw rod 602 and the guide rod 604, the sliding seat 603 is in threaded connection with the screw rod 602, and the sliding seat 603 is connected with the derailleur through a steel rope; the linear displacement sensor is arranged on the back side of the sliding seat 603; the stroke groove 605 is arranged in the variable speed stroke space 201 and is fixed with the PWM main board 10, and the linear displacement sensor slides in the stroke groove 605 to feed back a stroke position signal to the PWM main board 10 in a closed loop manner; the slide seat 603 is provided with a port 601 for fixing a steel rope, the end part of the bracket 20 is provided with a through hole 606, and the steel rope connected with the derailleur is detachably fixed in the port 601 after passing through the through hole 606;
specifically, referring to fig. 2, the screw rod 602 is controlled by the driving member 30, and when the driving member 30 is started, the screw rod 602 can be driven to rotate in the forward/reverse direction, so as to drive the sliding seat 603 to move leftwards or rightwards in the speed-change stroke space 201, and the movement process is stable in cooperation with the double-guide-rod 604 structure; meanwhile, the linear displacement sensor directly detects the position of the sliding seat 603 and feeds back to the PWM main board 10 to form a full-closed loop control, so that the accuracy of the speed change position and the real-time monitoring of the gear are ensured.
The driving piece 30 is installed on the bracket 20, and the output end of the driving piece is electrically connected with the servo speed change mechanism 60; in this embodiment, as shown in fig. 1-2, the driving member 30 is a dc motor and is assembled in a motor installation position provided on the bracket 20, the output end of the servo motor is connected with the input end of the speed reducing member, the output end of the speed reducing member is connected with the screw rod 602, further, the speed reducing member may be a multi-stage speed reducing gear set, and the dc motor is reversely assembled in the bracket 20, so as to effectively shorten the overall length of the device.
The PWM main board 10 is arranged on the bracket 20 and is electrically connected with the driving piece 30 to control the chain shifting action of the servo speed change mechanism 60 in a closed loop manner; the PWM main board 10 is integrated with a signal receiving unit, which is matched with a signal transmitting unit in the dial handle to receive pulse signals of the dial keys so as to control the start, stop, turn and turn number of the driving member 30.
A switch 50 is fixed to the bracket 20 and extends out of the main housing to control the overall opening and closing of the device.
The finger-dialing handle is arranged on one side of the handlebar and is in wireless communication connection with the PWM main board 10, and it can be understood that the finger-dialing handle is arranged on the handlebar and is close to the handle, so that the control in riding is facilitated; in this embodiment, the wireless communication mode is bluetooth communication; specifically, the finger-dialing handle includes: the device comprises three forward, reverse and middle finger-dialing keys, wherein the forward finger-dialing key and the reverse finger-dialing key are provided with a plurality of gears; the built-in battery is used for supplying power to the finger-dialing handle; the signal transmitting unit is used for receiving the pulse signals of the finger-dialing keys and wirelessly transmitting the pulse signals to the signal receiving unit on the PWM main board 10; the dial handle is provided with a display screen for displaying current gear information and electric quantity information, wherein the gear information and the electric quantity information are all given by the PWM main board 10. In the embodiment, the forward direction dial keys and the reverse direction dial keys all adopt micro switches to send signals; the middle finger-dialing key is positioned by adopting a compression spring steel ball type, and is automatically reset to the middle position when the finger is separated;
according to the electronic speed-changing closed-loop servo chain-shifting control device of the embodiment of the application, when a rider dials a forward, reverse or middle position dial button on a dial handle, a shift pulse signal sent by the dial button is wirelessly transmitted to a signal receiving unit integrated on the PWM main board 10 through a signal transmitting unit, the signal receiving unit wakes the PWM main board 10 after receiving the shift pulse signal, the PWM main board 10 controls the driving piece 30 to start, thereby driving the servo speed-shifting mechanism 60 to pull or loosen a steel rope, and controlling the chain shifter to move a chain between chain wheels;
after gear shifting, the motion mechanism of the sliding seat 603 and the screw rod 602 in the servo speed changing mechanism 60 ensures that the servo speed changing mechanism 60 has a self-locking positioning function, the servo control driving piece 30 is powered off, the singlechip I/O interface on the PWM main board 10 is disconnected, only the register data retaining function is reserved, and the speed changing gear of the derailleur is fixed.
Furthermore, the electronic speed-changing closed-loop servo chain-shifting control device of the embodiment can develop and configure APP software for downloading and using by clients, and the APP configuration functions are as follows:
matching programs with android and apple systems and WeChat applets; and the method is fully suitable for different user requirements.
Different brands of derailleur adaptation data; reference may be made to a customer when selecting a derailleur.
Presetting corresponding variable speed parameters; and adapting preset parameter configurations in the derailleur APP with different models for selection by clients.
Parameter fine tuning function; on the basis of parameter presetting, fine adjustment can be performed according to customer habits and favorites so as to adapt to personalized configuration of a rider.
Setting user-defined parameters; i.e. the rider directly self-defines and adjusts the speed change parameters, and is suitable for the rider or the advanced player who prefers to operate.
The above embodiments are only preferred embodiments of the present application, and the scope of the present application is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present application are intended to be within the scope of the present application as claimed.
Claims (10)
1. The utility model provides an electronic speed change closed loop servo chain control device, includes steel cable and derailleur, steel cable one end connect in on the derailleur, its characterized in that still includes:
a bracket (20) having a shift stroke space (201) inside;
a servo speed change mechanism (60) arranged in the speed change stroke space (201) and connected with the other end of the steel rope to control the derailleur to move a chain between the chain wheels;
the driving piece (30) is arranged on the bracket (20) and the output end of the driving piece is electrically connected with the servo speed change mechanism (60);
a PWM main board (10) which is arranged on the bracket (20) and is electrically connected with the driving piece (30) to control the chain shifting action of the servo speed change mechanism (60) in a closed loop manner;
the finger-dialing handle is arranged on one side of the handlebar and is in wireless communication connection with the PWM main board (10).
2. The electronically variable closed loop servo derailleur control device according to claim 1, wherein: the servo speed change mechanism (60) comprises:
a screw rod (602) rotatably installed in the shift travel space (201);
the guide rods (604) are at least one in number, are fixed in the speed change stroke space (201) and are arranged in parallel with the screw rods (602);
the sliding seat (603) is arranged on the screw rod (602) and the guide rod (604), the sliding seat (603) is in threaded connection with the screw rod (602), and the sliding seat (603) is connected with the derailleur through a steel rope;
the linear displacement sensor is arranged on the back side of the sliding seat (603).
3. The electronically variable closed loop servo derailleur control device according to claim 2, wherein: the slide seat (603) is provided with a port (601) for fixing the steel rope, a through hole (606) is formed in the end portion of the bracket (20), and the steel rope connected with the derailleur is detachably fixed in the port (601) after passing through the through hole (606).
4. The electronically variable closed loop servo derailleur control device according to claim 2, wherein: the servo speed change mechanism (60) further comprises a travel groove (605) which is arranged in the speed change travel space (201) and is fixed with the PWM main board (10), and the linear displacement sensor slides in the travel groove (605) to feed back a travel position signal to the PWM main board (10) in a closed loop mode.
5. The electronically variable closed loop servo derailleur control device according to claim 1, wherein: the support (20) is provided with a battery installation position for installing a battery (40), and the PWM main board (10) is electrically connected with the battery (40) in the battery installation position.
6. The electronically variable closed loop servo derailleur control device according to claim 5, wherein: the device also comprises a main machine shell, wherein the PWM main board (10), the bracket (20), the driving piece (30), the battery (40) and the servo speed change mechanism (60) are all installed in the main machine shell, and the main machine shell is installed on the frame.
7. The electronically variable closed loop servo derailleur control device according to claim 5, wherein: the device also comprises a switch (50) which is fixed on the bracket (20) and extends out of the main shell to control the opening and closing of the device.
8. The electronically variable closed loop servo derailleur control device according to claim 1, wherein: the dial handle includes:
the device comprises three forward, reverse and middle finger-dialing keys, wherein the forward finger-dialing key and the reverse finger-dialing key are provided with a plurality of gears;
the built-in battery is used for supplying power to the finger-dialing handle;
and the signal transmitting unit is used for receiving the pulse signal of the dial key and wirelessly transmitting the pulse signal to the signal receiving unit on the PWM main board (10).
9. The electronically variable closed loop servo derailleur control device according to claim 8, wherein: the finger-dialing handle is provided with a display screen for displaying current gear information.
10. The electronically variable closed loop servo derailleur control device according to claim 2, wherein: the driving piece (30) is a direct current motor and is assembled in a motor installation position formed in the support (20), the output end of the servo motor is connected with the input end of the speed reducing piece, and the output end of the speed reducing piece is connected with the screw rod (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311213462.7A CN117104386A (en) | 2023-09-20 | 2023-09-20 | Electronic speed-changing closed-loop servo chain-shifting control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311213462.7A CN117104386A (en) | 2023-09-20 | 2023-09-20 | Electronic speed-changing closed-loop servo chain-shifting control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117104386A true CN117104386A (en) | 2023-11-24 |
Family
ID=88805577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311213462.7A Pending CN117104386A (en) | 2023-09-20 | 2023-09-20 | Electronic speed-changing closed-loop servo chain-shifting control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117104386A (en) |
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2023
- 2023-09-20 CN CN202311213462.7A patent/CN117104386A/en active Pending
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