CN219639414U - Worm drive adjusting mechanism of electronic gear shifter - Google Patents

Abstract

The utility model relates to the field of electronic gear shifters, in particular to a worm drive adjusting mechanism of an electronic gear shifter, which comprises a bottom plate, wherein a worm wheel, a control circuit and a control rod are arranged on the bottom plate, the worm wheel is rotatably arranged on the bottom plate, the control rod is in sliding connection with the bottom plate, a protruding block is arranged on the control rod, a cam groove is arranged on the worm wheel, the protruding block is matched with the cam groove, an extension rod is fixedly connected onto the control rod, and the extension rod is positioned above the control circuit so as to input signals by cutting magnetic induction lines. According to the utility model, through the arrangement of the control rod, the metal sheet, the permanent magnet and the magnetic field sensor, the metal sheet makes acceleration and uniform speed movement along with the control rod, so that the magnetic field change rule is clear, and the technology can be used for replacing vulnerable parts such as the lug, the cam and the like, and can be rapidly applied.

Description

Worm drive adjusting mechanism of electronic gear shifter

Technical Field

The utility model relates to the field of electronic gear shifters, in particular to a worm drive adjusting mechanism of an electronic gear shifter.

Background

Electronic gear shifting is a driving system of a vehicle, which enables a driver to shift gears quickly and accurately by toggling a gear shift lever of an electronic gear shifter or clicking a gear shift button, without hanging the gear shift lever to change the running speed of the vehicle. In the existing electronic gear shifter, a gear shifting inhaul cable is controlled through a cam assembly, and a Hall sensor is used for sensing the position of a metal part so as to determine the gear shifting condition.

However, the metal component of the existing electronic gear shifter for the hall sensor does not move at a constant speed along with the cam, so that the hall sensor needs to calculate through a formula and then modulate after measuring signals, and a large amount of data measurement is needed to obtain new constants of the corresponding formula again once the parts of the electronic gear shifter are replaced, which is very complicated. Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a worm drive adjusting mechanism of an electronic gear shifter, which is realized by the following technical scheme:

the utility model provides a worm drive adjustment mechanism of electronic shifter, includes the bottom plate, set up worm wheel, control circuit and control lever on the bottom plate, the worm wheel rotates and sets up on the bottom plate, the control lever with bottom plate sliding connection, just be provided with the lug on the control lever, be provided with the cam groove on the worm wheel, the lug with the cam groove cooperation, fixedly connected with sheetmetal still on the control lever, the sheetmetal is located control circuit's top in order to pass through cutting magnetism induction line input signal.

The technical scheme is as follows: the bottom plate is used for arranging other parts; the worm wheel is used for controlling the movement speed of the control rod; the cam groove and the lug are used for controlling the movement distance, acceleration and uniform movement conditions of the control rod; the control rod is used for controlling the gear shifting inhaul cable to realize gear shifting; the metal sheet is used to move the cut magnetic induction wire so as to convert the position of the control rod into an input signal.

The utility model is further provided with: the motor is further arranged on the bottom plate, a worm is fixedly connected to the output end of the motor, and the worm is connected with the worm wheel in a matched mode.

The technical scheme is as follows: the motor is used for providing power; the worm is used for transmitting the power of the motor to the worm wheel.

The utility model is further provided with: the control rod is also fixedly provided with an extension rod, and the metal sheet is positioned at the end part of the extension rod.

The technical scheme is as follows: the extension rod is used for setting up the sheetmetal to avoid taking place to interfere between sheetmetal and the shift cable.

The utility model is further provided with: the control rod and the extension rod are arranged in parallel.

The technical scheme is as follows: the control rod and the extension rod are arranged in parallel, so that the moving direction and the moving speed of the metal sheet fixed at the end part of the extension rod are consistent with those of the control rod.

The utility model is further provided with: the control circuit comprises a permanent magnet and a magnetic field sensor, wherein the metal sheet is positioned above the permanent magnet, and the magnetic field sensor is used for measuring the magnetic field change of the permanent magnet.

The technical scheme is as follows: the permanent magnet is used for generating a magnetic field; the magnetic field sensor is used for sensing and quantifying the magnetic field change caused by cutting the magnetic induction lines by the metal sheet, and then transmitting and processing the measured data.

The utility model is further provided with: the control rod is connected with a gear shifting inhaul cable.

The utility model discloses a worm drive adjusting mechanism of an electronic gear shifter, which is compared with the prior art:

1. according to the utility model, through the arrangement of the control rod, the metal sheet, the permanent magnet and the magnetic field sensor, the metal sheet makes acceleration and uniform speed movement along with the control rod, so that the magnetic field change rule is clear, and the technology can be used for replacing vulnerable parts such as the lug, the cam and the like, and can be rapidly applied;

2. according to the utility model, through the cooperation of the structures, gear shifting can be realized quickly, and the position of the control rod can be accurately distinguished, so that whether gear shifting is completed is determined, and the motor is convenient to control the worm wheel to return.

Drawings

FIG. 1 is a schematic illustration of the present utility model;

fig. 2 is a schematic view of a control lever of the present utility model.

Corresponding part names are indicated by numerals and letters in the drawings: 10-a bottom plate; 20-worm gear; 201-cam slot; 30-a control circuit; 301-permanent magnets; 302-a magnetic field sensor; 40-a control lever; 401-bump; 50-metal sheets; 60-motor; 70-worm; 80-extension rod.

Detailed Description

The following describes in detail the examples of the present utility model, which are implemented on the premise of the technical solution of the present utility model, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present utility model is not limited to the following examples.

As shown in fig. 1-2, the worm drive adjusting mechanism of the electronic gear shifter provided by the utility model comprises a bottom plate 10, wherein a worm wheel 20, a control circuit 30 and a control rod 40 are arranged on the bottom plate 10, the worm wheel 20 is rotatably arranged on the bottom plate 10, the control rod 40 is slidably connected with the bottom plate 10, a bump 401 is arranged on the control rod 40, a cam groove 201 is arranged on the worm wheel 20, the bump 401 is matched with the cam groove 201, a metal sheet 50 is fixedly connected on the control rod 40, and the metal sheet 50 is positioned above the control circuit 30 so as to input signals by cutting magnetic induction lines. Wherein, a cover plate is further arranged on the bottom plate 10, and covers the bottom plate 10 to generate a cavity, and the rest parts are arranged in the cavity; the control circuit 30 further includes a processor for accepting, processing, and transmitting data; the center of the cam groove 201 coincides with the rotation axis of the worm wheel 20; the axis of the control rod 40 passes through the rotation center of the worm wheel 20 to realize self-locking of the cam groove 201; the protruding block 401 is cylindrical, and the diameter of the protruding block 401 is consistent with the width of the cam groove 201; the control rod 40 moves along with the pushing of the profile curve of the cam, the front section is a second-order polynomial movement rule, the uniform acceleration movement is realized, and the rear section is a first-order polynomial movement rule, and the uniform movement is realized.

As shown in fig. 1-2, in the worm drive adjusting mechanism of the electronic gear shifter provided by the utility model, a motor 60 is further arranged on the bottom plate 10, a worm 70 is fixedly connected to the output end of the motor 60, and the worm 70 is in fit connection with the worm wheel 20. Wherein, the motor 60 is a servo motor, and the motor 60 is in telecommunication connection with the processor.

As shown in fig. 1-2, in the worm drive adjusting mechanism of the electronic gear shifter provided by the utility model, an extension rod 80 is fixedly arranged on the control rod 40, and the metal sheet 50 is positioned at the end of the extension rod 80. Wherein, the end of the extension rod 80 is provided with a mounting groove, and the metal sheet 50 is clamped in the mounting groove.

As shown in fig. 1-2, the control lever 40 and the extension lever 80 are arranged in parallel, and the worm drive adjustment mechanism of the electronic gear shifter according to the present utility model. Wherein preferably the axis of the control lever 40 coincides with the axis of the extension lever 80.

As shown in fig. 1-2, in the worm drive adjusting mechanism of the electronic gear shifter provided by the utility model, the control circuit 30 comprises a permanent magnet 301 and a magnetic field sensor 302, the metal sheet 50 is located above the permanent magnet 301, and the magnetic field sensor 302 is used for measuring the magnetic field change of the permanent magnet 301. Wherein a magnetic field sensor 302 is arranged at one side of the permanent magnet 301.

As shown in fig. 1-2, the control lever 40 is connected with a gear shifting cable of the worm drive adjusting mechanism of the electronic gear shifter. Wherein, shift cable is used for controlling the gear shift.

The working principle of the utility model is as follows:

a) When gear shifting is needed, after a control button is pressed, a processor on a control circuit sends out a signal, and a motor rotates;

b) The motor drives the worm to rotate, and the worm drives the worm wheel to rotate;

c) Cam grooves on the worm wheel rotate along with the worm wheel;

d) Under the pushing of the cam groove, the cam on the control rod pushes the control rod to move;

e) The control rod firstly makes uniform acceleration motion and then reaches a designated position after making uniform motion, so that the gear shifting inhaul cable is controlled to shift gears;

f) The metal sheet is driven by the extension rod to perform uniform acceleration movement firstly and then uniform movement;

g) The magnetic field generated by the permanent magnet is changed under the action of the metal sheet cutting magnetic induction line;

h) The magnetic field sensor detects the change and sends the change to the processor, and the processor calculates and processes the change to obtain that the gear shift is completed; i) The processor controls the motor to reversely rotate, and the control rod returns to the initial position.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (6)

1. The utility model provides a worm drive adjustment mechanism of electronic shifter, includes bottom plate (10), its characterized in that: set up worm wheel (20), control circuit (30) and control lever (40) on bottom plate (10), worm wheel (20) rotate and set up on bottom plate (10), control lever (40) with bottom plate (10) sliding connection, just be provided with lug (401) on control lever (40), be provided with cam groove (201) on worm wheel (20), lug (401) with cam groove (201) cooperation, fixedly connected with sheetmetal (50) on control lever (40) still, sheetmetal (50) are located the top of control circuit (30) in order to pass through cutting magnetism induction line input signal.

2. The worm drive adjustment mechanism for an electronic shifter of claim 1, wherein: the motor (60) is further arranged on the bottom plate (10), a worm (70) is fixedly connected to the output end of the motor (60), and the worm (70) is connected with the worm wheel (20) in a matched mode.

3. The worm drive adjustment mechanism for an electronic shifter of claim 2, wherein: an extension rod (80) is fixedly arranged on the control rod (40), and the metal sheet (50) is positioned at the end part of the extension rod (80).

4. A worm drive adjustment mechanism for an electronic shifter as set forth in claim 3 wherein: the control rod (40) and the extension rod (80) are arranged in parallel.

5. The worm drive adjustment mechanism for an electronic shifter of claim 4, wherein: the control circuit (30) comprises a permanent magnet (301) and a magnetic field sensor (302), wherein the metal sheet (50) is positioned above the permanent magnet (301), and the magnetic field sensor (302) is used for measuring the magnetic field change of the permanent magnet (301).

6. The worm drive adjustment mechanism for an electronic shifter of claim 5, wherein: the control lever (40) is connected with a gear shifting cable.