CN108374885A - A kind of executing agency for electric gear change - Google Patents

Abstract

The present invention discloses a kind of executing agency for electric gear change；The technical issues of solution：1. will push mechanical changeover, shift force value big existing for tradition gearshift mentioned in the background art；2. metal wire-drawing loss in efficiency, shift-feel are poor；3. resting on centre position, error-prone technical problem when shift.The technical solution of use：A kind of executing agency for electric gear change, including gearbox and the controller that is arranged in cockpit, which is characterized in that further include executing agency's shell, motor, motor gear, middle transition gear, worm screw, sector gear and pcb board.Advantage, this is used for the executing agency of electric gear change, which is mounted on gearbox, and the mechanism rotation of gear-box side is directly driven to realize shift；This executing agency is exerted a force by motor instead of hand, solves the bad man-machine impression that above-mentioned mechanically actuated is brought.

Description

An actuator for electronic shifting

technical field

The invention relates to an actuator for electronic shifting.

Background technique

The shifting principle of the traditional shift mechanism is as follows: the shifter lever head is pulled by hand, the bottom of the shifter pushes the metal wire, and the wire is connected to the gearbox, which drives the mechanism on the gearbox side to rotate to realize the shift operation.

There are many disadvantages of human-machine experience brought about by this operation: 1. It is necessary to push the mechanical shift, and the shift force is large. 2. The efficiency of metal wire drawing is lost, and the shift feel is poor. 3. It stays in the middle position when shifting gears, which is easy to make mistakes.

Contents of the invention

The technical problems to be solved by the present invention are: 1. The traditional shifting mechanism mentioned in the background technology exists: 1. To promote mechanical shifting, the shifting force value is large; 2. The efficiency of metal wire drawing is lost, and the shifting feel is poor; 3. Stuck in the middle position when shifting, error-prone technical problem.

The object of the present invention is to provide an actuator for electronic gear shifting, which is installed on the gearbox and directly drives the mechanism on the gearbox side to rotate to achieve gear shifting; The bad human-machine experience brought by the above-mentioned mechanical operation is eliminated.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

An actuator for electronic shifting, including a gearbox and a controller arranged in the cockpit, and also includes an actuator housing, a motor, a motor gear, an intermediate transition gear, a worm, a sector gear, and a PCB board,

The actuator is set above the gearbox through the bracket, the shift input shaft of the gearbox extends into the actuator, and the bracket connects the actuator housing and the gearbox case at the same time;

The motor, motor gear, intermediate transition gear, worm, sector gear and PCB board are all set in the actuator housing, and the actuator housing includes a detachably connected upper cover and a lower housing;

The motor is electrically connected to the controller, the motor shaft of the motor is provided with a motor gear, the motor gear meshes with the intermediate transition gear, the intermediate transition gear is arranged at one end of the worm, the worm meshes with the sector gear, and a shaft sleeve is provided at the rotation shaft of the sector gear, and the sector gear passes through the shaft sleeve Insert it into the cylindrical channel of the upper cover, and insert the shift input shaft of the gearbox into the shaft sleeve;

The PCB board is arranged in the housing of the actuator, the PCB board is located under the sector gear, and a Hall angle sensor is arranged on the PCB board, and the Hall angle sensor is electrically connected to the controller;

A magnet is overmolded at the rotation center of one end of the shaft sleeve of the sector gear, and the magnet is located directly above the Hall angle sensor.

Preferably, an interference fit is used between the motor gear and the motor shaft of the motor. The setting of this technical feature makes the motor gear fasten with the motor.

Preferably, clearance fit is used between the shaft sleeve of the sector gear and the cylindrical channel of the upper cover. The setting of this technical feature enables the sector gear to rotate relative to the housing of the actuator.

Preferably, the sector gear is integrally formed with the shaft sleeve.

Preferably, the PCB board is fixed on the bottom case by screws.

Preferably, the intermediate transition gear is integrally formed with the worm.

The gearbox mentioned in the technical solution of the present invention is a conventional technical product in the prior art.

The Hall angle sensor mentioned in the technical solution of the present invention is a conventional technical product in the prior art and can be directly purchased.

The magnet mentioned in the technical solution of the present invention is overmolded at one end of the shaft sleeve, and the overmolding process mentioned here is a conventional process in the prior art.

The present invention compares with prior art, and its beneficial effect is:

This actuator is used for electronic gear shifting. The actuator is installed on the gearbox and directly drives the mechanism on the gearbox side to rotate to achieve gear shifting. This actuator uses a motor instead of hand force, which solves the inconvenience caused by the above-mentioned mechanical operation. Good man-machine feeling.

Description of drawings

Fig. 1 is a top view of the mechanism of the present invention (the upper cover is omitted among the figures).

Figure 2 is a sectional view of the front view of the present invention.

Fig. 3 is a schematic diagram of the structure in which the shift input shaft of the gearbox is inserted into the rotating shaft sleeve.

Detailed ways

The technical solutions of the present invention will be described in detail below, but the protection scope of the present invention is not limited to the embodiments.

In order to make the content of the present invention more obvious and understandable, a further description will be made below in conjunction with the accompanying drawings 1-3 and specific implementation methods.

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

As shown in Figure 1, an actuator for electronic shifting includes a gearbox and a controller arranged in the cockpit, and is characterized in that it also includes an actuator housing, a motor 1, a motor gear 2, an intermediate transition Gear 4, worm 5, sector gear 6 and PCB board 10.

The actuator is arranged above the gearbox through a bracket, the shift input shaft 10 of the gearbox extends into the actuator, and the bracket connects the housing of the actuator and the casing of the gearbox at the same time.

As shown in Figures 1 and 2, the motor 1, the motor gear 2, the intermediate transition gear 4, the worm 5, the sector gear 6 and the PCB board 10 are all arranged in the actuator housing, and the actuator housing includes a detachably connected upper cover 13 With the bottom case 14, the upper cover 13 and the bottom case 14 are fixedly connected by bolts.

The motor 1 is electrically connected to the controller, and the motor shaft of the motor 1 is provided with a motor gear 2, and an interference fit is adopted between the motor gear 2 and the motor shaft of the motor 1. The setting of this technical feature makes the motor gear 2 and the motor 1 fastened. The motor gear 2 meshes with the intermediate transition gear 4, the intermediate transition gear 4 is arranged at one end of the worm 5, and the intermediate transition gear 4 and the worm 5 are integrally formed. The worm 5 meshes with the sector gear 6 , and the worm 5 and the sector gear 6 constitute the worm gear 3 .

A rotating shaft sleeve 8 is arranged at the rotating shaft of the sector gear 6 , and the sector gear 6 is inserted into the cylindrical channel of the upper cover 13 through the rotating shaft sleeve 8 , and the shift input shaft 10 of the gearbox is inserted into the rotating shaft sleeve 8 . A clearance fit is used between the shaft sleeve 8 of the sector gear 6 and the cylindrical channel of the upper cover 13 . The setting of this technical feature makes the sector gear 6 rotatable relative to the housing of the actuator. The sector gear 6 and the shaft sleeve 8 are integrally formed.

As shown in FIG. 2 , the PCB board 10 is arranged in the housing of the actuator, and the PCB board 10 is fixed on the bottom case 14 by screws. The PCB board 10 is located below the sector gear 6, and a Hall angle sensor 11 is arranged on the PCB board 10, and the Hall angle sensor 11 is electrically connected to the controller.

As shown in FIG. 2 , a magnet 12 is overmolded at the rotation center of one end of the shaft sleeve 8 of the sector gear 6 , and the magnet 12 is located directly above the Hall angle sensor 11 .

The working process of the executive body is as follows:

The motor 1 adjusts the speed according to the input voltage, the motor gear 2 meshes with the intermediate transition gear 4, and the torque is increased through a certain reduction ratio, the worm 5 meshes with the sector gear 6, and the worm 5 and the sector gear 6 form a worm gear movement, through a certain deceleration Ratio increases the torque, and finally sets the rotating shaft sleeve 8 output torque at the rotating shaft of the sector gear 6 to drive the shift shaft 9 on the gearbox to rotate to realize the shift operation.

As shown in Figure 2, the PCB board 10 is welded with a Hall angle sensor 11, and the Hall angle sensor 11 feeds back the angle to the controller arranged in the cockpit; when the driver sends a shift signal, the controller The angular position of the Hall angle sensor 11 is used to determine whether the motor 1 should rotate forward or reverse;

When the motor 1 is working, after the motor gear 2 drives the worm gear 3 to drive, it drives the sector gear 6 to rotate, causing the relative angle change between the magnet 12 and the Hall angle sensor 11; Angle position, determine whether the motor 1 stops, until the angular position fed back by the controller according to the Hall angle sensor 11 is exactly the required gear, the motor 1 stops working.

As stated above, while the invention has been shown and described with reference to certain preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. An actuator for electronic shifting, comprising a gearbox and a controller arranged in the cockpit, characterized in that it also includes an actuator housing, a motor (1), a motor gear (2), an intermediate transition gear (4), worm (5), sector gear (6) and PCB board (10), The actuator is arranged above the gearbox through a bracket, the shift input shaft (10) of the gearbox extends into the actuator, and the bracket simultaneously connects the actuator housing and the gearbox case; The motor (1), the motor gear (2), the intermediate transition gear (4), the worm (5), the sector gear (6) and the PCB board (10) are all arranged in the actuator housing, and the actuator housing includes a detachable connection The upper cover (13) and the bottom case (14); The motor (1) is electrically connected to the controller, the motor shaft of the motor (1) is provided with a motor gear (2), the motor gear (2) engages with the intermediate transition gear (4), and the intermediate transition gear (4) is arranged at one end of the worm (5) , the worm (5) meshes with the sector gear (6), the rotation shaft of the sector gear (6) is provided with a shaft sleeve (8), and the sector gear (6) is inserted into the cylindrical channel of the upper cover (13) through the shaft sleeve (8), The shift input shaft (10) of the gearbox is inserted into the shaft sleeve (8); The PCB board (10) is arranged in the actuator housing, the PCB board (10) is located under the sector gear (6), and a Hall angle sensor (11) is arranged on the PCB board (10), and the Hall angle sensor (11) electrical connection controller; A magnet (12) is overmolded at the rotation center of one end of the shaft sleeve (8) of the sector gear (6), and the magnet (12) is positioned directly above the Hall angle sensor (11). 2. The actuator for electronic shifting according to claim 1, characterized in that an interference fit is used between the motor gear (2) and the motor shaft of the motor (1). 3. The actuator for electronic shifting according to claim 2, characterized in that clearance fit is used between the shaft sleeve (8) of the sector gear (6) and the cylindrical channel of the upper cover (13). 4. The actuator for electronic shifting according to claim 1, characterized in that, the sector gear (6) and the shaft sleeve (8) are integrally formed. 5. The actuator for electronic shifting according to claim 1, characterized in that, the PCB board (10) is fixed on the bottom case (14) by screws. 6. The actuator for electronic gear shifting according to claim 1, characterized in that the intermediate transition gear (4) and the worm (5) are integrally formed.