A vehicle rotary electromechanical conversion shift mechanism

Abstract

The present invention discloses a vehicle rotary electromechanical conversion shift mechanism, comprising an outer cover, a deep groove ball bearing mounted within the outer cover, a top portion of the outer cover connected to a top cover, and a bottom portion of the outer cover connected to a base via a sensor mounting plate. A single-axis, two-degree-of-freedom operating mechanism extends through the deep groove ball bearing, driving the shift force output mechanism and the gear lock limit mechanism to move in conjunction, thereby generating a gear shift feel. A wire outlet seat is mounted on the outer circumference of the base, and an electrical connector is connected to the outer cover via the wire outlet seat. A Hall-type proximity switch is provided on the sensor mounting plate, and the Hall-type proximity switch is connected to a circuit board. The circuit board collects the Hall-type proximity switch signals and outputs them in a centralized manner via the wire outlet seat and the electrical connector. The present invention can meet the requirements of a vehicle's eight-gear transmission (six forward, one reverse, and one neutral) and the operational requirements of rotary shifting. It has good shift feel feedback, reliability, and wear resistance, and can ensure the accuracy and stability of gear signal output, thus having broad application prospects.

Description

Technical Field

[0001] The present invention relates to a gear shifting mechanism, in particular to a vehicle rotary electromechanical conversion gear shifting mechanism. Background Art

[0002] Due to their rotary nature, rotary mechanical shift mechanisms are widely used in vehicle hydraulic transmissions. These mechanisms connect the transmission's hydraulic oil circuit to the rotary mechanical shift mechanism. The rotation of the hydraulic valve within the shift mechanism controls the opening and closing of different oil circuits, thereby switching the transmission's output mode and achieving speed shifting. With the advancement of vehicle transmission technology and the increasing demand for low-temperature adaptability in new environments and situations, this type of hydraulic rotary mechanical shift mechanism no longer meets these requirements.

[0003] The electromechanical conversion shift mechanism is different from the hydraulic mechanical shift mechanism. It has no direct connection with the gearbox. It adopts advanced computer control technology and follows the working mode of signal acquisition, signal processing and terminal execution. It collects the gear position signal of the electronically controlled shift mechanism, the gearbox speed signal, temperature signal, pressure signal and other performance parameters and performs centralized analysis and calculation to achieve precise control of the gearbox.

[0004] When using an electromechanical shift mechanism, ensuring clear shift feedback, clear gear position indication, and stable gear status output is paramount. This prevents subjective misoperation, incorrect gear position output, and other faults, protects the transmission, and ensures the stability and reliability of the vehicle's transmission control system. Therefore, the electromechanical shift mechanism is a key design consideration for vehicle electromechanical shift mechanisms. Furthermore, to ensure user acceptance of the mechanism and reduce the difficulty of adopting the new equipment, the continuity of the shift operation method must also be considered. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a vehicle rotary electromechanical conversion shift mechanism with distinct shifting feel, low misoperation rate, and easy operation.

[0006] The technical solution of the present invention to solve the above technical problems is: a vehicle rotary electromechanical conversion shift mechanism, including an outer cover, two coaxially arranged deep groove ball bearings are installed in the outer cover, and also include a single-axis dual-freedom operating mechanism, a shift force output mechanism, and a gear lock limit mechanism. The top of the outer cover is connected to the top cover, and the bottom of the outer cover is connected to the base after passing through the sensor mounting plate. The two coaxially arranged deep groove ball bearings are fixed in the outer cover, and the single-axis dual-freedom operating mechanism runs through the deep groove ball bearings, driving the shift force output mechanism and the gear lock limit mechanism to move jointly, thereby generating a gear switching feel; an outlet seat is installed on the outer circumference of the base, and the electrical connector is connected to the outer cover through the outlet seat for power input and gear signal output; the sensor mounting plate is provided with 8 Hall-type proximity switches, corresponding to 6 forward, 1 reverse, and 1 empty, a total of 8 gears, the Hall-type proximity switches are connected to the circuit board, the circuit board collects the Hall-type proximity switch signals of the 8 gears, and outputs them centrally through the outlet seat and the electrical connector.

[0007] The above-mentioned vehicle rotary electromechanical conversion shift mechanism, the single-axis two-degree-of-freedom operating mechanism includes a rotating shaft, a nylon bushing, a linear sliding bearing and a chuck; the inner ring of the deep groove ball bearing is mounted on a rotating disk, and the inner ring of the rotating disk is mounted on a linear sliding bearing; the top of the rotating shaft passes through the top cover and is connected to the handle; the middle of the rotating shaft passes through the linear sliding bearing, and the bottom of the rotating shaft passes through a nylon bushing set in the middle of the base; the chuck is clearance-fitted with the lower part of the rotating shaft, the chuck is fastened to the rotating disk, and a sensing screw is provided on the chuck; the single-axis two-degree-of-freedom operating mechanism drives the chuck to rotate, and the sensing screw on the chuck rotates to the corresponding gear Hall-type proximity switch for sensing, and outputs the corresponding gear signal.

[0008] The above-mentioned vehicle rotary electromechanical conversion shift mechanism, the shift force output mechanism includes a first hexagonal screw plug, a second hexagonal screw plug, a spring seat, a positioning spring, and a limit spring; the top cover is installed on the outer cover, and four stepped through holes are symmetrically arranged in the height direction of the top cover. The first hexagonal screw plug is installed in the stepped through hole, and the threaded end of the first hexagonal screw plug is fixedly connected to one end of the positioning spring. The first steel ball is placed on the other end of the positioning spring. The first steel ball is on the end face of the rotating disk. The bottom of the stepped through hole is installed with an interference fit of the steel ball valve seat. The inner side of the steel ball valve seat contacts the first steel ball to guide the first steel ball; the top cover has two first stepped holes arranged radially symmetrically, a spring seat is installed on the first stepped hole, and the second hexagonal screw plug is installed on the spring On the seat, the threaded end of the second hexagonal screw plug is fixedly connected to one end of the limit spring, and a second steel ball is placed on the other end of the limit spring, and the second steel ball is pressed into the second V-shaped steel ball groove corresponding to the rotating shaft; the outer circle of the rotating disk is matched with two deep groove ball bearings, and a second stepped hole is set inside the rotating disk, and 4 threaded holes are set on the stepped end face of the second stepped hole for installing linear sliding bearings and fixing them with the chuck, and 10 evenly distributed first V-shaped steel ball grooves are set on the end face of the rotating disk, corresponding to the 4 stepped through holes of the top cover; the rotating shaft is provided with 3 continuous second V-shaped steel ball grooves at the corresponding outer circle position, representing the 3 different gear function layers of the electronically controlled shift mechanism, namely the neutral locking layer, the forward gear limit layer and the reverse gear limit layer.

[0009] The above-mentioned vehicle rotary electromechanical conversion shift mechanism, the gear locking limit mechanism includes a limit pin, a sensor mounting plate, a forward gear limit plate and a reverse gear limit plate. The sensor mounting plate, the forward gear limit plate and the reverse gear limit plate are stacked in sequence from top to bottom and fastened by screws. The limit pin is installed at the corresponding position of the rotating shaft, so that the limit pin is respectively in the special-shaped grooves of the sensor mounting plate, the forward gear limit plate and the reverse gear limit plate when in the neutral locking layer, the forward gear limit layer and the reverse gear limit layer, thereby limiting its rotational freedom in the neutral locking layer, the forward gear limit layer and the reverse gear limit layer, which are respectively unable to rotate, can only rotate clockwise and can only rotate counterclockwise; the sensor mounting plate utilizes the middle redundant space and designs a groove at the position of the neutral locking layer by cooperating with the limit pin, thereby integrating the neutral locking function.

[0010] In the above-mentioned vehicle rotary electromechanical conversion shift mechanism, the connecting surfaces between the outer cover and the top cover, the connecting surfaces between the outer cover and the sensor mounting plate, and the connecting surfaces between the sensor mounting plate and the base are all sealed with rubber sealing gaskets, and the remaining gaps are sealed by dust covers, O-rings or circular rubber strips; rubber shock-absorbing pads are provided all around the base.

[0011] The above-mentioned vehicle rotary electromechanical conversion shift mechanism has a gear indicator plate between the top cover and the handle, which is fixed on the top cover. The gear indicator plate is engraved and marked with lines according to the mechanical position of each gear and the direction of the long end of the handle.

[0012] The above-mentioned vehicle rotary electromechanical conversion shift mechanism, the rotating shaft, rotating disk, chuck, spring seat, and steel ball valve seat are made of high-strength alloy structural steel 40Cr, and are all soft nitrided and nickel-plated; the limit pin is made of alloy structural steel 38CrSi; the interior of the handle is made of stainless steel and the exterior is made of insulation material; the remaining parts are all made of high-strength aluminum alloy materials.

[0013] The beneficial effects of the present invention are:

[0014] 1. The rotary electromechanical conversion shift mechanism of the present invention adopts 8 non-contact Hall-type proximity switches to transmit gear signals, and adopts the sensor mounting plate as the partition plate between the electrical and mechanical modules, so that the overall mechanism is divided into two upper and lower modules, namely the mechanical and electrical modules, and the two modules do not interfere with each other, thereby enhancing the stability and reliability of the mechanism.

[0015] 2. The rotary electromechanical conversion shift mechanism of the present invention adopts two deep groove ball bearings and one linear sliding bearing, so that the rotational freedom of the entire mechanism around the Z axis and the sliding freedom along the Z axis are flexible and reliable, and there are axial guides at the upper, middle and lower positions of the rotating shaft. The overall structure has high strength and good rigidity; in the vertical direction, two symmetrical second steel balls and a limit spring are used on the upper part of the rotating shaft for shifting feel and axial positioning, a linear sliding bearing is used in the middle for axial positioning, and a nylon sleeve is used at the bottom for axial positioning and lubrication, ensuring the flexibility and stability of the rotating shaft rotation and vertical movement.

[0016] 3. The present invention designs a shift force output mechanism with a positioning spring pressing the second steel ball. Ten steel ball holes are evenly distributed on the corresponding rotating disk parts. Four symmetrically distributed steel balls are involved in the shift feel in the same gear, resulting in a uniform shift feel and good feedback.

[0017] 4. The present invention divides the functional areas and integrates the rotary shifting and up and down functional gear switching feel mechanisms. The overall product volume is small and the layout is compact. The high temperature, low temperature, humidity, vibration, impact and other performance fully meet the military standard requirements.

[0018] 5. The main load-bearing and mating components of the present invention (rotating shaft, rotating disk, chuck, spring seat, and steel ball valve seat) are all treated with soft nitriding and nickel plating to improve the strength, wear resistance, and corrosion resistance of the mating parts; the connecting surfaces are sealed with rubber sealing gaskets, and the remaining gaps are sealed with dust boots, O-rings, or circular rubber strips. The exterior is sprayed with anti-corrosion paint, which has good reliability and environmental adaptability, can meet the use requirements of different working conditions, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a perspective view of the present invention.

[0020] Figure 2 for Figure 1 Top view of .

[0021] Figure 3 for Figure 2 AA cross-sectional view.

[0022] Figure 4 for Figure 2 BB cross-sectional view.

[0023] Figure 5 This is an enlarged structural diagram of the single-axis two-degree-of-freedom control mechanism.

[0024] Figure 6 Schematic diagram of the structure of the chuck.

[0025] Figure 7 A top view of the top cover.

[0026] Figure 8 Schematic diagram of the structure of the rotating disk.

[0027] Figure 9 This is an enlarged structural diagram of the gear lock limit mechanism.

[0028] Figure 10 It is a structural diagram of the limit plates at each layer.

[0029] Figure 11 This is the circuit connection schematic diagram of the Hall-type proximity switch. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and examples.

[0031] like Figures 1-4As shown, a vehicle rotary electromechanical conversion shift mechanism includes an outer cover 1, two coaxially arranged deep groove ball bearings are installed in the outer cover 1, and also includes a single-axis dual-freedom operating mechanism, a shift force output mechanism, and a gear lock limit mechanism. The top of the outer cover 1 is connected to the top cover 2, and the bottom of the outer cover 1 is connected to the base 4 after passing through the sensor mounting plate 3. The two coaxially arranged deep groove ball bearings are fixed in the outer cover 1, and the single-axis dual-freedom operating mechanism runs through the deep groove ball bearings to drive the shift force output mechanism and the gear lock limit mechanism to move together, thereby generating a gear switching feel; an outlet seat 5 is installed on the outer circumference of the base 4, and an electric The connector is connected to the outer cover 1 through the outlet seat 5 for power input and gear signal output; the sensor mounting plate 3 is provided with 8 Hall-type proximity switches 6 in a ring shape, corresponding to 6 forward, 1 reverse and 1 empty, a total of 8 gears. At the same time, the sensor mounting plate 3 serves as a partition between the electrical and mechanical modules, so that the overall mechanism is divided into two upper and lower modules of mechanical and electrical components, and the two modules do not interfere with each other, thereby enhancing the stability and reliability of the mechanism; the Hall-type proximity switches 6 are connected to the circuit board 7, and the circuit board 7 collects the Hall-type proximity switch 6 signals of the 8 gears and outputs them centrally through the outlet seat 5 and the electrical connector.

[0032] The connecting surfaces between the outer cover 1 and the top cover 2, the connecting surfaces between the outer cover 1 and the sensor mounting plate 3, and the connecting surfaces between the sensor mounting plate 3 and the base 4 are all sealed with rubber sealing gaskets 8, and the remaining gaps are sealed by dust sleeves, O-rings or circular rubber strips; rubber shock-absorbing pads 9 are provided around the base 4 for shock absorption.

[0033] A gear indicator plate 10 is provided between the top cover 2 and the handle. The gear indicator plate 10 is fixed on the top cover 2. The gear indicator plate 10 is engraved and marked with lines according to the mechanical position of each gear and the direction of the long end of the handle 16, and is painted red to enhance recognition.

[0034] like Figure 5-Figure 8As shown, the single-axis dual-degree-of-freedom manipulation mechanism includes a rotating shaft 11, a nylon sleeve 12, a linear sliding bearing 13 and a chuck 14; the inner ring of the deep groove ball bearing is installed with a rotating disk 15, and the inner ring of the rotating disk 15 is installed with a linear sliding bearing 13; the top of the rotating shaft 11 passes through the top cover 2 and is connected to the handle 16 through a flat key and a bolt to transmit rotational torque and up and down movement force; the middle of the rotating shaft 11 passes through the linear sliding bearing 13, and the bottom of the rotating shaft 11 passes through the nylon sleeve 12 set in the middle of the base 4 to achieve the entire axial guiding effect; the chuck 14 cooperates with the small gap at the bottom of the rotating shaft 11 through its hexagonal opposite side structure, so that it can both drive the chuck 1 4 can rotate coaxially and can also slide up and down along its axis relative to the chuck 14. In addition, the chuck 14 is fastened to the rotating disk 15, thereby driving the shift force output mechanism to work in conjunction. This ensures that the rotating shaft 11 can not only drive the chuck 14, the linear sliding bearing 13, and the rotating disk 15 to rotate flexibly coaxially, but also to slide flexibly vertically relative to the above three components, thereby realizing a dual-degree-of-freedom shifting operation. The chuck 14 is provided with a sensing screw mounting hole 17 for mounting a sensing screw 28. The single-axis dual-degree-of-freedom operating mechanism drives the chuck 14 to rotate, and the sensing screw 28 on the chuck 14 rotates to the corresponding gear position Hall-type proximity switch 6 for sensing and outputting a corresponding gear position signal.

[0035] The shift force output mechanism includes a first hexagonal screw plug, a second hexagonal screw plug 18, a spring seat 19, a positioning spring 20, and a limit spring 21; the top cover 2 is installed on the outer cover 1, and four stepped through holes 22 are symmetrically arranged in the height direction of the top cover 2. A first hexagonal screw plug is installed in the stepped through hole 22, and the threaded end of the first hexagonal screw plug is fixedly connected to one end of the positioning spring 20. A first steel ball is placed on the other end of the positioning spring 20. The first steel ball is pressed against the end face of the rotating disk 15. A steel ball valve seat 23 is installed at the bottom of the stepped through hole 22 by an interference fit. The inner side of the steel ball valve seat 23 contacts the first steel ball to guide the first steel ball; two first stepped holes 24 are radially symmetrically arranged on the top cover 2, a spring seat 19 is installed on the first stepped hole 24, and the second hexagonal screw plug 18 is installed on the spring seat 1 9, the threaded end of the second hexagonal screw plug 18 is fixedly connected to one end of the limit spring 21, and a second steel ball is placed on the other end of the limit spring 21, and the second steel ball is pressed into the second V-shaped steel ball groove corresponding to the rotating shaft 11; the outer circle of the rotating disk 15 is matched with two deep groove ball bearings, a second stepped hole is set inside the rotating disk 15, and four threaded holes are set on the stepped end face of the second stepped hole for installing the linear sliding bearing 13 and fixing it with the chuck 14, and 10 evenly distributed first V-shaped steel ball grooves are set on the end face of the rotating disk 15, corresponding to the four stepped through holes 22 of the top cover 2; the rotating shaft 11 is provided with three continuous second V-shaped steel ball grooves at the corresponding outer circle position, representing the three different gear function layers of the electronically controlled shifting mechanism, namely the neutral locking layer, the forward gear limiting layer and the reverse gear limiting layer. Initially, there is a certain amount of preload. When the handle 16 is rotated or moved up and down, the corresponding steel ball groove drives the corresponding steel ball to compress the corresponding spring, thereby generating a shift force output and feeding it back to the handle 16. The four positioning springs 20 and the two limit springs 21 serve as the shift force sources for rotary shifting and vertical gear switching, respectively. The positioning springs 20 and the limit springs 21 generate a certain amount of preload. When switching gears, the vertical movement of the rotating shaft 11 or the rotation of the rotating disk 15 will drive the corresponding steel ball to compress the corresponding spring. When switching to the next gear, the corresponding steel ball will return to the steel ball groove corresponding to the new gear, thus generating a shift feel.

[0036] Depend on Figure 5-Figure 8 It can be seen that when the handle 16 of the single-axis two-degree-of-freedom operating mechanism drives the rotating shaft 11 to rotate and shift gears, the rotating shaft 11 drives the chuck 14 to rotate coaxially. The chuck 14 is fixed to the rotating disk 15, and thus rotates coaxially with the rotating shaft 11. In this way, the four steel ball holes 30 on the top of the rotating disk 15 that support the first steel ball change, thereby compressing the positioning spring 20 to produce a rotational shifting feel;

[0037] Similarly, when the handle 16 of the single-axis two-degree-of-freedom operating mechanism drives the rotating shaft 11 to switch the functional gears up and down, the rotating shaft 11 slides up and down under the guidance of the linear sliding bearing 13 and the nylon sleeve 12. At this time, the two radially symmetrically distributed second steel balls will switch to different second V-shaped steel ball grooves on the rotating shaft 11. In this process, the limit spring 21 will be compressed, thereby producing the feel of switching the functional gears up and down.

[0038] like Figure 9 、 Figure 10 As shown, the gear locking limit mechanism includes a limit pin 25, a sensor mounting plate 3, a forward gear limit plate 26 and a reverse gear limit plate 27. The sensor mounting plate 3, the forward gear limit plate 26 and the reverse gear limit plate 27 are stacked in sequence from top to bottom and fastened by screws. The sensor mounting plate 3 is provided with a sensor mounting plate mounting hole 31, a forward gear limit plate mounting hole 32 and a proximity sensor mounting hole 33. The limit pin 25 is installed at the corresponding position of the rotating shaft 11 so that the limit pin 25 is in the neutral locking layer, the forward gear limit plate mounting hole 32 and the reverse gear limit plate mounting hole 33. When in the forward gear limit layer and the reverse gear limit layer, they are respectively in the special-shaped grooves of the sensor mounting plate 3, the forward gear limit plate and the reverse gear limit plate, thereby limiting their rotational freedom in the neutral gear locking layer, the forward gear limit layer and the reverse gear limit layer, which are respectively unable to rotate, only able to rotate clockwise and only able to rotate counterclockwise, effectively reducing the possibility of misoperation; the sensor mounting plate 3 utilizes the middle redundant space and designs a groove at the position of the neutral gear locking layer by cooperating with the limit pin 25, thereby integrating the neutral gear locking function.

[0039] like Figure 9 、 Figure 10 It can be seen that the gear locking and limiting mechanism cooperates with the up and down switching function gear operation, and sets the neutral gear locking layer, forward gear limiting layer and reverse gear limiting layer at the corresponding positions, and uses the limit pin 25 installed at the appropriate position of the rotating shaft 11 as a locking or limiting part. The different slot angles of each layer limit its rotational freedom, and the upper and lower layers can be switched when and only when in neutral.

[0040] The rotating shaft 11, rotating disk 15, chuck 14, spring seat 19, and steel ball valve seat 23 are made of high-strength alloy structural steel 40Cr, and are all soft nitrided and nickel-plated; the limit pin 25 is made of alloy structural steel 38CrSi; the interior of the handle 16 is made of stainless steel and the exterior is made of heat-insulating material; the remaining parts are all made of high-strength aluminum alloy material, effectively improving the structural strength, wear resistance and corrosion resistance to meet the requirements of the harsh vehicle operating environment.

[0041] The working process of the present invention is as follows:

[0042] (1) When the shift mechanism is in the neutral state and the shift handle 16 is at the uppermost level (i.e., it cannot be pulled upwards any further), the shift handle 16 cannot perform a rotational shift operation;

[0043] (2) When the vehicle needs to start moving forward, press the shift handle 16 downward to the middle layer, and then rotate it clockwise. At this time, the rotating shaft 11 will drive the rotating disk 15 and the chuck 14 to rotate coaxially. The rotating disk 15 drives the second steel ball, compresses the limit spring 21 and produces a shift feel. The sensing screw on the chuck 14 is rotated to the corresponding gear position Hall proximity switch 6. The current Hall proximity switch 6 is turned on and outputs a high-level signal, completing the shift operation;

[0044] (3) When the vehicle needs to reverse, first switch the shift mechanism to neutral, then continue to press the handle 16 to switch to the bottom layer, and then rotate the handle 16 counterclockwise to switch to reverse gear (the middle layer cannot be rotated counterclockwise when in neutral).

Claims

1. A rotary electromechanical shifting mechanism for a vehicle, comprising an outer cover, in which two coaxially arranged deep groove ball bearings are mounted, characterized in that: It also includes a single-axis dual-degree-of-freedom operating mechanism, a shift force output mechanism, and a gear locking and limiting mechanism. The top of the outer cover is connected to the top cover, and the bottom of the outer cover is connected to the base after passing through the sensor mounting plate. Two coaxially arranged deep groove ball bearings are fixed in the outer cover. The single-axis dual-degree-of-freedom operating mechanism runs through the deep groove ball bearings, driving the shift force output mechanism and the gear locking and limiting mechanism to move jointly, thereby generating a gear switching feel; an outlet seat is installed on the outer circumference of the base, and the electrical connector is connected to the outer cover through the outlet seat for power input and gear signal output; 8 Hall-type proximity switches are provided on the sensor mounting plate, corresponding to 6 forward, 1 reverse, and 1 empty gears, a total of 8 gears. The Hall-type proximity switches are connected to the circuit board. The circuit board collects the Hall-type proximity switch signals of the 8 gears and outputs them centrally through the outlet seat and the electrical connector; The single-axis, two-degree-of-freedom operating mechanism includes a rotating shaft, a nylon bushing, a linear sliding bearing, and a chuck; a rotating disk is mounted on the inner ring of the deep-groove ball bearing, and a linear sliding bearing is mounted on the inner ring of the rotating disk; the top of the rotating shaft passes through the top cover and is connected to the handle; the middle of the rotating shaft passes through the linear sliding bearing, and the bottom of the rotating shaft passes through a nylon bushing set in the middle of the base; the chuck is clearance-matched with the lower portion of the rotating shaft, the chuck is fastened to the rotating disk, and a sensing screw is provided on the chuck; the single-axis, two-degree-of-freedom operating mechanism drives the chuck to rotate, and the sensing screw on the chuck rotates to the corresponding gear Hall-type proximity switch for sensing, and outputs the corresponding gear signal; The shift force output mechanism includes a first hexagonal screw plug, a second hexagonal screw plug, a spring seat, a positioning spring, and a limit spring; the top cover is installed on the outer cover, and four stepped through holes are symmetrically arranged in the height direction of the top cover, and the first hexagonal screw plug is installed in the stepped through hole, and the threaded end of the first hexagonal screw plug is fixedly connected to one end of the positioning spring, and the first steel ball is placed on the other end of the positioning spring. The first steel ball is on the end face of the rotating disk, and the steel ball valve seat is installed with an interference fit at the bottom of the stepped through hole. The inner side of the steel ball valve seat contacts the first steel ball to guide the first steel ball; two first stepped holes are radially symmetrically arranged on the top cover, and a spring seat is installed on the first stepped hole, the second hexagonal screw plug is installed on the spring seat, and the second hexagonal screw plug is installed on the spring seat. The threaded end of the plug is fixedly connected to one end of the limit spring, and a second steel ball is placed on the other end of the limit spring. The second steel ball is pressed into the second V-shaped steel ball groove corresponding to the rotating shaft; the outer circle of the rotating disk is matched with two deep groove ball bearings, and a second stepped hole is set inside the rotating disk, and four threaded holes are set on the stepped end face of the second stepped hole for installing linear sliding bearings and fixing them with the chuck. Ten evenly distributed first V-shaped steel ball grooves are set on the end face of the rotating disk, corresponding to the four stepped through holes of the top cover; three continuous second V-shaped steel ball grooves are set at the corresponding outer circle positions of the rotating shaft, representing three different gear function layers of the electronically controlled shift mechanism, namely the neutral locking layer, the forward gear limit layer and the reverse gear limit layer.

2. The vehicle rotary electromechanical conversion shift mechanism according to claim 1, characterized in that: The gear locking limit mechanism includes a limit pin, a sensor mounting plate, a forward gear limit plate and a reverse gear limit plate. The sensor mounting plate, the forward gear limit plate and the reverse gear limit plate are stacked in sequence from top to bottom and fastened by screws. The limit pin is installed at the corresponding position of the rotating shaft, so that the limit pin is respectively in the special-shaped grooves of the sensor mounting plate, the forward gear limit plate and the reverse gear limit plate when in the neutral gear locking layer, the forward gear limit layer and the reverse gear limit layer, thereby limiting its rotational freedom in the neutral gear locking layer, the forward gear limit layer and the reverse gear limit layer, which are respectively unable to rotate, only able to rotate clockwise and only able to rotate counterclockwise; the sensor mounting plate utilizes the middle redundant space and designs a groove at the position of the neutral gear locking layer by cooperating with the limit pin, thereby integrating the neutral locking function.

3. The vehicle rotary electromechanical conversion shift mechanism according to claim 1, characterized in that: The connection surfaces between the outer cover and the top cover, the connection surfaces between the outer cover and the sensor mounting plate, and the connection surfaces between the sensor mounting plate and the base are all sealed with rubber sealing pads, and the remaining gaps are sealed with dust covers (29), O-rings or circular rubber strips; rubber shock-absorbing pads are provided around the base.

4. The vehicle rotary electromechanical conversion shift mechanism according to claim 2, characterized in that: A gear indicator plate is provided between the top cover and the handle. The gear indicator plate is fixed on the top cover. The gear indicator plate is engraved and marked with lines according to the mechanical position of each gear and the direction of the long end of the handle.

5. The vehicle rotary electromechanical conversion shift mechanism according to claim 4, characterized in that: The rotating shaft, rotating disk, chuck, spring seat, and steel ball valve seat are made of high-strength alloy structural steel 40Cr, and are all soft nitrided and nickel-plated; the limit pin is made of alloy structural steel 38CrSi; the interior of the handle is made of stainless steel and the exterior is made of insulation material; the remaining parts are all made of high-strength aluminum alloy.

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