CN217056284U

CN217056284U - Vehicle gear shifting actuator with gear mechanism

Info

Publication number: CN217056284U
Application number: CN202123233645.4U
Authority: CN
Inventors: 韦水明; 马卫锋; 朱建荣
Original assignee: Suzhou Tianmuai Automobile Part Co ltd
Current assignee: Suzhou Tianmuai Automobile Part Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-07-26
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses an automobile-used executor of shifting with gear mechanism, it is including the base that has base chamber and gear chamber, detachably sets up on the base and the apron in closed base chamber, the motor of setting in the base chamber, the cover is established at the motor gear on motor output, and cooperate and set up the transition gear train in the gear chamber with motor gear, with transition gear train complex screw rod piece, with screw rod piece complex coupling piece, set up the circuit board of controlling motor in the base chamber and, and the coupling axle that is connected with coupling piece, wherein the motor drives motor gear rotatory to it is rotatory to drive transition gear train and screw rod piece, thereby drives the linear motion of coupling axle. The utility model discloses an advantage can keep off the position and switch to connect or separate the front and back transmission shaft of vehicle, realize two drive and four-wheel drive's manual switching.

Description

Vehicle gear shifting actuator with gear mechanism

Technical Field

The utility model belongs to automobile-used executor field of shifting.

Background

At present, most of vehicle gear shifting actuators are two-drive actuators so as to meet the requirement of fuel economy, but in order to deal with complex road conditions such as sand beach or mountain land, a small part of vehicle gear shifting actuators adopt four-drive actuators, but the fuel consumption situation is easy to occur. Therefore, it is economical to satisfy the above conditions in the same vehicle, and it is necessary to provide a vehicle shift actuator capable of shifting gears.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is: the gear shifting actuator with the gear mechanism for the vehicle can perform gear shifting so as to connect or separate front and rear transmission shafts of the vehicle and realize manual switching of two-wheel drive and four-wheel drive.

The technical scheme of the utility model is that: a vehicle gear shifting actuator with a gear mechanism comprises a base with a base cavity and a gear chamber, a cover plate detachably arranged on the base and used for sealing the base cavity, a motor arranged in the base cavity, a motor gear sleeved on the output of the motor, a transition gear set matched with the motor gear and arranged in the gear chamber, a screw rod piece matched with the transition gear set, a connecting block matched with the screw rod piece, a circuit board arranged in the base cavity and used for controlling the motor, and a connecting shaft connected with the connecting block, wherein the motor drives the motor gear to rotate and drives the transition gear set and the screw rod piece to rotate so as to drive the connecting shaft to linearly move.

On the basis of the technical scheme, the method further comprises the following subsidiary technical scheme:

the transition gear set comprises a first transition gear meshed with the output gear and a second transition gear arranged coaxially with the first transition gear, wherein the number of teeth of the second transition gear is larger than that of the teeth of the first transition gear.

The axial direction of the coupling shaft and the axial direction of the screw member are parallel to each other.

The screw member includes a screw gear that is engaged with the second transition gear, and a rotating screw that is disposed coaxially with the screw gear.

The second transition gear is positioned between the motor gear and the screw gear.

The coupling block is positioned between the screw rod piece and the coupling shaft and is adjacent to the circuit board.

The utility model has the advantages that: the gear switching can be carried out to connect or separate front and rear transmission shafts of the vehicle, and the manual switching of two-wheel drive and four-wheel drive is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a cross-sectional view of the present invention at a viewing angle;

fig. 4 is a cross-sectional view taken along line E-E of fig. 3.

Detailed Description

The embodiment is as follows: referring to fig. 1-4, an embodiment of a gear shift actuator for a vehicle having a gear mechanism is disclosed, comprising: the base 100 with base cavity 120 and gear chamber 140, detachably set up on the base 100 and close the cover plate 200 of the base cavity 120, set up the motor 300 in the base cavity 120, the motor gear 320 that the cover is set up on the output of the motor 300, and cooperate with gear 320 of the motor and set up in the gear chamber 140 in the transition gear train, the screw member cooperating with transition gear train, the coupling block 600 cooperating with screw member, set up in the base cavity 120 and control the circuit board 700 of the motor 300, and the coupling shaft 800 linking with coupling block 600, wherein the motor 300 drives the rotation of gear 320 of the motor, and drive the transition gear train and screw member to rotate, thus drive the linear motion of the coupling shaft 800. The wiring board 700 is provided with a circuit having a pair of hall sensors 720.

The base 100 is substantially rectangular, and further includes a guide rail 122 disposed in the base cavity 120, a coupling shaft hole 160 disposed at one side and allowing the coupling shaft 800 to pass therethrough, an oil seal 820 disposed in the coupling shaft hole 160 and elastically supporting and sealing the coupling shaft 800, and a power socket 180 disposed adjacent to the coupling shaft hole 160. The motor gear 320 is disposed in the gear chamber 140. The upper end of the base 100 is provided with an annular groove 110 and a plurality of tooth-shaped protrusions 112 disposed in the annular groove 110 at intervals.

The cover plate 200 is provided at a bottom end thereof with an annular flange 210 and an arc-shaped protrusion 220 at a top end thereof. The annular flange 210 mates with the annular groove 110 and is ultrasonically welded. The arcuate projection 220 is adapted to receive a portion of the circumference of the transition gear set or screw member to reduce overall height and facilitate miniaturization. The base 100 and the cover plate 200 are made of polybutylene terephthalate plastic and are welded together through ultrasonic waves, so that a sealing ring and a screw in the existing design are eliminated, the sealing performance of a product is guaranteed, and the product can still normally work under severe conditions.

The transition gear set includes a first transition gear 400 engaged with the output gear 320, and a second transition gear 420 coaxially disposed with the first transition gear 400, wherein the second transition gear 420 has a larger number of teeth than the first transition gear 400, and the diameter of the second transition gear 420 is 2-10 times the diameter of the first transition gear 400.

The screw member includes a screw gear 500 engaged with the second transition gear 420, and a rotary screw 520 having one end coaxially disposed with the screw gear 500. The axial direction of the coupling shaft 800 and the axial direction of the screw member are parallel to each other. The second transition gear 420 is located between the motor gear 320 and the screw gear 500. The transition gear set realizes the functions of speed reduction and torque increase.

The coupling block 600 is located between the screw member and the coupling shaft 800 and adjacent to the circuit board 700, and includes a screw hole 620 at least partially receiving the rotary screw 520, a shaft hole 640 located below the screw hole 620 and receiving one end of the coupling shaft 800, a magnet 660 located at one side of the shaft hole 640, and a guide 680 located below the shaft hole 640 and engaged with the guide rail 122. The coupling shaft 800 is coupled to the coupling block 600 through the female screw of the shaft hole 640. The existing coupling block is not provided with a guide mechanism and can rotate along the axis of the rotating screw rod in actual work, so that the induction deviation between the magnet on the coupling block and the Hall sensor is large, the position of the coupling shaft is prone to be inaccurate, the guide piece is added in the embodiment, the problem can be effectively improved, and the position precision is improved.

When the electric motor works, the electric motor 300 rotates positively and reversely according to a current signal, the electric motor gear 320 is pressed with the electric motor shaft, the electric motor gear 320 drives the first transition gear 400 of the transition gear set, the first transition gear 400 drives the second transition gear 420 to rotate, meanwhile, the rotary screw 520 drives the connecting block 600 to move along the axis of the rotary screw 520, and the magnet 660 on the connecting block 600 moves to a specified position according to the Hall sensor 720 on the circuit board 700; the coupling shaft 800 moves linearly in synchronization, and then drives the gear shifting fork to move, thereby playing a role in shifting gears.

The utility model discloses an advantage can keep off the position and switch to connect or separate the front and back transmission shaft of vehicle, realize two drive and four-wheel drive's manual switching.

It should be understood that the above-mentioned embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and the protection scope of the present invention cannot be limited thereby. All equivalent changes or modifications made according to the spirit of the main technical scheme of the invention should be covered in the protection scope of the invention.

Claims

1. A vehicle shift actuator having a gear mechanism, comprising: the gear transmission mechanism comprises a base (100) with a base cavity (120) and a gear chamber (140), a cover plate (200) which is detachably arranged on the base (100) and closes the base cavity (120), a motor (300) arranged in the base cavity (120), a motor gear (320) sleeved on the output of the motor (300), a transition gear set which is matched with the motor gear (320) and arranged in the gear chamber (140), a screw rod piece which is matched with the transition gear set, a connecting block (600) which is matched with the screw rod piece, a circuit board (700) which is arranged in the base cavity (120) and controls the motor (300), and a connecting shaft (800) which is connected with the connecting block (600), wherein the motor (300) drives the motor gear (320) to rotate and drives the transition gear set and the screw rod piece to rotate, so that the connecting shaft (800) is driven to linearly move.

2. The vehicular shift actuator according to claim 1, characterized in that: the transition gear set comprises a first transition gear (400) meshed with the motor gear (320) and a second transition gear (420) coaxially arranged with the first transition gear (400), wherein the number of teeth of the second transition gear (420) is larger than that of the first transition gear (400).

3. The vehicle shift actuator according to claim 2, characterized in that: the axial direction of the coupling shaft (800) and the axial direction of the screw member are parallel to each other.

4. A shift actuator for a vehicle according to claim 3, characterized in that: the screw member includes a screw gear (500) intermeshed with the second transition gear (420), and a rotary screw (520) coaxially disposed with the screw gear (500).

5. The vehicular shift actuator according to claim 4, characterized in that: the second transition gear (420) is located between the motor gear (320) and the screw gear (500).

6. The vehicular shift actuator according to claim 1, 2, 3, 4 or 5, characterized in that: the coupling block (600) is located between the screw member and the coupling shaft (800) and adjacent to the circuit board (700).