CN111577883A - Tractor electric control gear engaging control mechanism - Google Patents
Tractor electric control gear engaging control mechanism Download PDFInfo
- Publication number
- CN111577883A CN111577883A CN202010640511.5A CN202010640511A CN111577883A CN 111577883 A CN111577883 A CN 111577883A CN 202010640511 A CN202010640511 A CN 202010640511A CN 111577883 A CN111577883 A CN 111577883A
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- Prior art keywords
- shifting
- motor
- electric control
- gear
- cam disc
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- 230000007246 mechanism Effects 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/044—Ratio selector apparatus consisting of electrical switches or sensors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
- F16H63/16—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism
- F16H63/18—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism the final actuating mechanism comprising cams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H2061/2869—Cam or crank gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/304—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force
- F16H2063/3056—Constructional features of the final output mechanisms the final output mechanisms comprising elements moved by electrical or magnetic force using cam or crank gearing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear-Shifting Mechanisms (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
The invention discloses an electric control gear-shifting control mechanism of a tractor, which comprises an electric control handle, a control system, a motor, a cam disc, a gear-shifting assembly and a sensor, wherein the electric control handle and the motor are respectively in signal connection with the control system, the cam disc is connected with the motor, the gear-shifting assembly is connected with the cam disc, the sensor is arranged on the cam disc, and the sensor is in signal connection with the control system. The invention has the advantages that: the automatic gear engaging of the tractor gear shifting assembly is realized by arranging the electric control handle and the control system and matching the motor and the cam disc, the gear shifting operation is simple and convenient due to the electric control structure, the control part is in a module form, the mounting structure is simple, the reliability is high, the mounting and maintenance cost is low, data interaction is carried out among the modules, and the design idea of modern agricultural machinery is met.
Description
Technical Field
The invention relates to the field of agricultural production equipment, in particular to an electric control gear engaging control mechanism of a tractor.
Background
The existing tractor generally adopts a mechanical or hydraulic gear engaging mechanism, which mainly comprises an operating lever, a box body, a shifting lever, a shifting block, a shifting fork shaft, a shifting fork, a steel ball and other parts, wherein the operating lever is operated to drive the shifting block and the shifting fork to move, so that the shifting fork shaft is driven to translate to enable a groove part on the shifting fork shaft to translate to the lower part of the steel ball, the steel ball enters the groove under the pressure action of a spring on the box body, and gear engaging is completed. The gear engaging structure is complex to operate, difficult to engage and high in labor intensity of workers, and does not accord with the development idea of modern agricultural machinery.
Disclosure of Invention
The purpose of the invention is as follows: in view of the above problems, the present invention provides an electrically controlled gear engaging control mechanism for a tractor, which is more simple, practical, reliable and advanced in gear engaging operation of the tractor.
The technical scheme is as follows: the utility model provides an automatically controlled gear control mechanism that puts into gear of tractor, includes automatically controlled handle, control system, motor, cam disc, the subassembly of shifting, sensor, automatically controlled handle the motor respectively with control system signal connection, the cam disc with the motor is connected, the subassembly of shifting with the cam disc is connected, the sensor install in on the cam disc, the sensor with control system signal connection.
The electric control handle is provided with an up-down gear button, the electric control button is operated to send a signal for increasing or decreasing gears to the control system, the control system sends an instruction to the motor, the motor drives the cam disc to move, so that the gear shifting assembly is engaged again to realize gear replacement, and the sensor is used for feeding back a signal to the control system.
Further, control system includes controller changer, driver, the controller with driver signal connection, the controller with be connected with between the driver the changer, automatically controlled handle the sensor respectively with controller signal connection, the motor with driver signal connection.
Further, the controller is a PLC controller or a vehicle-mounted special controller.
Further, the subassembly of shifting is including installing in inside driving lever, shifting block, declutch shift shaft, steel ball, elastic component, shift fork of box, the one end of driving lever with the cam disc is connected, and the other end passes through the shifting block with the declutch shift shaft is connected perpendicularly, a plurality of recesses have been seted up along its axial on the outer peripheral face of declutch shift shaft, the one end of elastic component with the inner wall of box is fixed, the other end with the steel ball is connected, the steel ball passes through the elastic component card is located one of them in the recess, the shift fork with the one end of declutch shift shaft is connected.
Further, the elastic member is a spring.
Furthermore, the mechanism also comprises an instrument panel, and the instrument panel is in signal connection with the control system.
Preferably, the motor is a servo motor.
Most preferably, the sensor is an angle sensor.
Has the advantages that: compared with the prior art, the invention has the advantages that: the automatic gear engaging of the tractor gear shifting assembly is realized by arranging the electric control handle and the control system and matching the motor and the cam disc, the gear shifting operation is simple and convenient due to the electric control structure, the control part is in a module form, the mounting structure is simple, the reliability is high, the mounting and maintenance cost is low, data interaction is carried out among the modules, and the design idea of modern agricultural machinery is met.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further illustrated with reference to the following figures and specific examples, which are to be understood as merely illustrative and not restrictive of the scope of the invention.
An electric control gear engaging control mechanism of a tractor is shown in figure 1, and comprises an electric control handle 1, a control system 2, a motor 3, a cam disc 4, a gear shifting assembly 5, a sensor 6 and an instrument panel 7.
The control system 2 comprises a controller 21, a transmitter 22 and a driver 23, the controller 21 can be a PLC (programmable logic controller) or a vehicle-mounted special controller, the controller 21 is connected with the driver 23, the transmitter 22 is connected between the controller 21 and the driver 23, the electric control handle 1 is in signal connection with the controller 21, the electric control handle 1 is provided with a shift up-down button, the motor 3 is in signal connection with the driver 23, and the motor 3 can be a servo motor.
The cam disc 4 generally comprises a cam, a driven part and a frame, a motor shaft of the motor 3 is connected with the cam of the cam disc 4, the gear shifting assembly 5 is connected with the driven part of the cam disc 4, the gear shifting assembly 5 can be a plurality of according to the number of gears of the tractor, the gear shifting assembly 5 comprises a shifting rod 51, a shifting head 52, a shifting fork shaft 53, a steel ball 54, an elastic part 55 and a shifting fork 56, the shifting rod 51 is installed inside a box body, one end of the shifting rod 51 is connected with the driven part of the cam disc 4, the other end of the shifting rod is vertically connected with the shifting fork shaft 53 through the shifting head 52, a plurality of grooves 531 are formed in the outer peripheral surface of the shifting fork shaft 53 along the axial direction of the shifting fork shaft, one end of the elastic part 55 is fixed with the inner wall of the box body, the other end of the elastic part 54.
The sensor 6 is an angle sensor, the sensor 6 is arranged on a cam of the cam disc 4, the sensor 6 is in signal connection with the controller 21, the sensor 6 feeds back an angle signal of the cam disc 4 to the controller 21, and the instrument panel 7 is in signal connection with the controller 21.
In the working process, the motor is controlled to rotate to drive the cam disc to rotate by operating the shift up-down button on the electric control handle, so that the shift rod and the shift fork shaft are controlled to act to realize the control of gear shifting.
After the tractor is electrified, the motor automatically rotates to a neutral position, and gear information can be displayed through the instrument panel. After an upshift or downshift button of the electric control handle is pressed, the controller receives a signal and transmits a control signal to the driver, the driver drives the motor to rotate, the rotating direction and angle are determined by the pressed key and the gear at the moment, and the angle value during rotation is accurately fed back to the controller by the sensor and can be displayed in real time through the instrument panel.
When the motor controls the cam disc to rotate, if the conditions of difficult gear engagement and gear engagement not in place occur, the motor can rotate reversely for a certain angle and then rotate towards the target gear, and if the gear engagement still cannot be successfully achieved after multiple attempts, a feedback signal is fed back to display an alarm signal through the instrument panel.
When the gear is shifted, the steel ball is shifted out of the original groove and re-enters another groove for clamping under the translation of the shifting fork shaft.
In addition, in order to accurately know whether the gear is engaged or not, besides the judgment of the sensor on the cam disc, the positions of the shifting fork shaft and the steel ball also need to be judged, so that the possibility of the gear engagement completion when the cam disc rotates to a certain angle interval can be judged through the sensor, and the judgment is carried out by combining the characteristic of the sudden change of the load current of the motor. When the gear is not finished, the shifting fork shaft has certain friction force to the shifting fork shaft due to the steel ball in the translation process, so that the load is increased, the input current of the driver is increased, and the input current of the driver is suddenly reduced when the steel ball is pushed into the groove of the shifting fork shaft and the load suddenly drops. At the moment, the transient change of the current is transmitted to the controller through the transmitter and is displayed through the instrument panel, so that whether the gear is engaged or not can be judged under the condition that other sensors are not arranged in the gearbox body.
The whole control system adopts a CAN bus structure, so that the wiring quantity is greatly reduced, and the reliability is improved. The controller, the driver and the instrument panel transmit data through the CAN bus, so that the data interactivity is improved. Through data transmission, the work of each control is coordinated and ordered.
Through setting up automatically controlled handle and control system, cooperation motor and cam disc realize tractor gearshift subassembly's automation and put into gear, automatically controlled structure makes the gear shift control simple and convenient, and control portion is the module form, and mounting structure is simple, and the reliability is high, and the installation maintenance cost is low, carries out data interaction between the module, accords with modern agricultural machine's design thought, has realized tractor automatically controlled formula and has put into gear, makes tractor put into gear operation easy operation more, practical, reliable advanced, has effectively reduced the labour.
Claims (8)
1. The utility model provides an automatically controlled gear control mechanism that puts into gear of tractor which characterized in that: including automatically controlled handle (1), control system (2), motor (3), cam disc (4), the subassembly of shifting (5), sensor (6), automatically controlled handle (1) motor (3) respectively with control system (2) signal connection, cam disc (4) with motor (3) are connected, the subassembly of shifting (5) with cam disc (4) are connected, sensor (6) install in on cam disc (4), sensor (6) with control system (2) signal connection.
2. The electric control gear engaging control mechanism of the tractor according to claim 1, characterized in that: control system (2) include controller (21), changer (22), driver (23), controller (21) with driver (23) signal connection, controller (21) with be connected with between driver (23) changer (22), electric control handle (1) sensor (6) respectively with controller (21) signal connection, motor (3) with driver (23) signal connection.
3. The electric control gear engaging control mechanism of the tractor according to claim 2, characterized in that: the controller (21) is a PLC controller or a vehicle-mounted special controller.
4. The electric control gear engaging control mechanism of the tractor according to claim 1, characterized in that: the gear shifting assembly (5) comprises a shifting lever (51), a shifting head (52), a shifting fork shaft (53), a steel ball (54), an elastic piece (55) and a shifting fork (56), wherein the shifting lever (51) is installed inside the box body, one end of the shifting lever (51) is connected with the cam disc (4), the other end of the shifting lever passes through the shifting head (52) and the shifting fork shaft (53) are perpendicularly connected, a plurality of grooves (531) are formed in the outer peripheral surface of the shifting fork shaft (53) along the axial direction of the shifting fork shaft, one end of the elastic piece (55) is fixed to the inner wall of the box body, the other end of the elastic piece is connected with the steel ball (54), the steel ball (54) passes through the elastic piece (55) which is clamped in one of the grooves (531), and the shifting fork (56) is connected with.
5. The electric control gear engaging control mechanism of the tractor according to claim 4, wherein: the elastic piece (55) is a spring.
6. The electric control gear engaging control mechanism of the tractor according to claim 1, characterized in that: the device also comprises an instrument panel (7), wherein the instrument panel (7) is in signal connection with the control system (2).
7. The electric control gear engaging control mechanism of the tractor according to claim 1, characterized in that: the motor (3) is a servo motor.
8. The electric control gear engaging control mechanism of the tractor according to claim 1, characterized in that: the sensor (6) is an angle sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010640511.5A CN111577883A (en) | 2020-07-06 | 2020-07-06 | Tractor electric control gear engaging control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010640511.5A CN111577883A (en) | 2020-07-06 | 2020-07-06 | Tractor electric control gear engaging control mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN111577883A true CN111577883A (en) | 2020-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010640511.5A Pending CN111577883A (en) | 2020-07-06 | 2020-07-06 | Tractor electric control gear engaging control mechanism |
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| CN (1) | CN111577883A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072312A (en) * | 2011-01-14 | 2011-05-25 | 浙江万里扬变速器股份有限公司 | Gear-shifting actuating mechanism of automobile transmission |
| CN203939975U (en) * | 2014-05-28 | 2014-11-12 | 长城汽车股份有限公司 | A kind of shifting vehicle gearbox operating mechanism |
| CN106678360A (en) * | 2015-11-11 | 2017-05-17 | 上海汽车集团股份有限公司 | Car, gearbox of car and motor gear-shifting system and unit |
| US20190128416A1 (en) * | 2017-11-02 | 2019-05-02 | Suzuki Motor Corporation | Shift device of transmission |
| CN212251075U (en) * | 2020-07-06 | 2020-12-29 | 江苏沃得农业机械股份有限公司 | Tractor electric control gear engaging control mechanism |
-
2020
- 2020-07-06 CN CN202010640511.5A patent/CN111577883A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072312A (en) * | 2011-01-14 | 2011-05-25 | 浙江万里扬变速器股份有限公司 | Gear-shifting actuating mechanism of automobile transmission |
| CN203939975U (en) * | 2014-05-28 | 2014-11-12 | 长城汽车股份有限公司 | A kind of shifting vehicle gearbox operating mechanism |
| CN106678360A (en) * | 2015-11-11 | 2017-05-17 | 上海汽车集团股份有限公司 | Car, gearbox of car and motor gear-shifting system and unit |
| US20190128416A1 (en) * | 2017-11-02 | 2019-05-02 | Suzuki Motor Corporation | Shift device of transmission |
| CN212251075U (en) * | 2020-07-06 | 2020-12-29 | 江苏沃得农业机械股份有限公司 | Tractor electric control gear engaging control mechanism |
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