CN217328416U

CN217328416U - Gear structure convenient to shift

Info

Publication number: CN217328416U
Application number: CN202220330046.XU
Authority: CN
Inventors: 常富城; 刘健; 解天; 张文佳
Original assignee: Jiangxi Woder Technology Co ltd
Current assignee: Jiangxi Woder Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-08-30
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses mechanical transmission technical field. The utility model provides a gear structure convenient to shift, includes the casing, is equipped with shift shaft and the rack of shifting in the casing, is equipped with first motor on the shift shaft, is equipped with the second motor on the rack of shifting, the epaxial axle sleeve of shifting that is equipped with of shifting, the gear of shifting has been seted up on the surface of one side of axle sleeve of shifting, gear and the rack meshing of shifting, the outer peripheral surface of axle sleeve opposite side of shifting has seted up and has shifted the groove, the casing on the fixed locating pin that is equipped with, the locating pin is at the inslot relative slip that shifts. The utility model provides a gear structure convenient for gear shifting, which has simple structure and low cost, does not depend on a sensor, can automatically reset after the first start and can automatically select and shift gears; the technical problems of complex structure, over dependence on a sensor, high requirement of a transmission system and high cost in the prior art are solved.

Description

Gear structure convenient to shift gears

Technical Field

The utility model discloses mechanical transmission technical field especially relates to a gear structure convenient to shift.

Background

In modern society, automobiles have become one of the first choice tools for riding instead of walk. Furthermore, autoshifts account for a large portion of the private car market. In an automatic transmission automobile, gear shifting of a transmission needs a special actuator to realize, so that a gear selecting and shifting actuator plays a very important role.

The gear selecting and shifting actuator drives the gear selecting shaft through the motor, so that the gear selecting shaft drives the gear shifting gear to move axially, and finally the gear selecting and shifting work of the actuator is completed. The actuator has a high requirement on the whole transmission system due to the fact that the actuator relates to motor driving, if the position of a gear cannot be well positioned, a better self-learning effect is achieved, good gear selecting and shifting work cannot be achieved, transmission interruption can be caused, and work of the whole vehicle is influenced. Therefore, whether the whole vehicle is transmitted or the better power consistency is maintained, a good positioning function is needed to be provided firstly. Traditional gear shifting structure is single, needs a plurality of sensors of cooperation just can realize selecting the function of shifting, and is with high costs, and the structure is complicated, if the sensor can not confirm well that keep off the position then can influence car work, and the security during the use has led to the fact the influence.

SUMMERY OF THE UTILITY MODEL

The utility model provides a gear structure convenient for gear shifting, which has simple structure and low cost, does not depend on a sensor, can automatically reset after the first start and can automatically select and shift gears; the technical problems of complex structure, over dependence on a sensor, high requirement of a transmission system and high cost in the prior art are solved.

The above technical problem of the utility model is solved through following technical scheme: the utility model provides a gear structure convenient to shift, includes the casing, is equipped with shift shaft and the rack of shifting in the casing, is equipped with first motor on the shift shaft, is equipped with the second motor on the rack of shifting, the epaxial axle sleeve of shifting that is equipped with of shifting, the gear of shifting has been seted up on the surface of one side of axle sleeve of shifting, gear and the rack meshing of shifting, the outer peripheral surface of axle sleeve opposite side of shifting has seted up and has shifted the groove, the casing on the fixed locating pin that is equipped with, the locating pin is at the inslot relative slip that shifts. The positioning pin is fixedly arranged in the shell, the gear shifting shaft sleeve is arranged above the gear shifting shaft, the first motor controls the gear shifting shaft sleeve to longitudinally slide, the gear shifting shaft sleeve drives the gear shifting groove to longitudinally slide, thereby realizing the longitudinal relative sliding and the limiting of the gear shifting groove and the positioning pin, realizing the function of gear selection, controlling the transverse movement of the gear shifting rack by the second motor, engaging the gear shifting rack with the gear shifting gear, driving the gear shifting gear to rotate by the movement of the gear shifting rack, driving the gear shifting groove to deflect left and right by the rotation of the gear shifting gear, realizing the transverse rotation and the limiting of the gear shifting groove and the positioning pin, respectively controlling the gear shifting shaft and the gear shifting rack to move by the first motor and the second motor, further realizing the function of gear shifting, the data of the first motor and the second motor required by changing each gear can be stored in a specific program, when automatic gear shifting is needed, the first motor and the second motor can be controlled to realize gear shifting according to the current gear; the positioning pin can provide accurate positioning and limiting for the rotation of the gear shifting groove, the use of a sensor is reduced, the automatic reset can be realized according to gears when a vehicle is started for the first time, and meanwhile, the automatic gear shifting can be realized in the driving process; the gear that shifts of integral type stable in structure has avoided multiple potential problem that complex structure brought.

Preferably, the shift grooves comprise a longitudinal shift groove and a plurality of transverse shift grooves which are parallel to each other, the transverse shift grooves are uniformly distributed on two sides of the longitudinal shift groove, and the transverse shift grooves are communicated with the longitudinal shift groove. Different horizontal shifting grooves represent different gears, the first motor controls the shifting shaft to longitudinally slide, the shifting shaft drives the vertical shifting groove to slide, longitudinal displacement of the vertical shifting groove and the positioning pin is achieved, then the second motor controls the shifting rack to transversely move, the shifting rack moves to drive the shifting gear to rotate, the rotation of the shifting gear drives the horizontal shifting groove to rotate, the positioning pin enters the different horizontal shifting grooves, and then the shifting effect is achieved.

Preferably, the number of the lateral shift grooves is 10. The 10 transverse shift gates represent 7 speed gears, 1 reverse gear, 1 park gear, and a neutral gear, respectively.

Preferably, both ends of the longitudinal shift groove are arc-shaped closed ends. Two ends of the longitudinal gear shifting groove are closed ends, and excessive sliding of the gear shifting groove is avoided while whether the gear is reached is judged.

Preferably, the longitudinal shift groove and the lateral shift groove have the same width. The positioning pin slides in the longitudinal shifting groove and the transverse shifting groove relatively, so that the longitudinal shifting groove and the transverse shifting groove with the same width can ensure the smoothness of the sliding of the positioning pin, and avoid overlarge or undersize friction.

Preferably, the widths of the longitudinal gear shifting groove and the transverse gear shifting groove are 3-4 mm. The widths of the longitudinal gear shifting groove and the transverse gear shifting groove are 3-4mm, so that the gear shifting stroke and the gear shifting speed are ensured to be within a required range, and the gear shifting speed and the gear shifting stability are ensured.

Preferably, a crown gear is arranged between the first motor and the gear shifting shaft sleeve. The first motor drives a pair of crown gears to rotate, and the crown gears can convert the rotation of the motor into axial movement, so that the longitudinal movement of the gear shifting shaft is realized.

Therefore, the utility model discloses a gear structure convenient to shift possesses following advantage: the gear of shifting of integral type design stable in structure, simple structure, it is with low costs, do not rely on the sensor, fix a position accurately, holistic transmission effect and stability in use are better.

Drawings

Fig. 1 is a schematic structural view of a gear structure convenient for shifting in a three-dimensional sectional view of the present invention.

Fig. 2 is a schematic view of a matching structure of the middle shift sleeve and the positioning pin in fig. 1.

Fig. 3 is a front sectional structural view of fig. 2.

Fig. 4 is a schematic top view of the structure of fig. 2.

In the figure, a shell 1, a positioning pin 2, a gear shifting shaft 3, a first motor 4, a gear shifting shaft sleeve 5, a crown gear 6, a gear shifting groove 7, a longitudinal gear shifting groove 8, a transverse gear shifting groove 9, a gear shifting gear 10, a gear shifting rack 11 and a second motor 12 are arranged.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b): as shown in fig. 1, 2, 3 and 4, a gear structure convenient for gear shifting comprises a housing 1, a positioning pin 2 is transversely and fixedly installed at the upper end in the housing 1, a gear shifting shaft 3 is longitudinally installed at the lower end in the housing 1, a first motor 4 is installed on the bottom of the gear shifting shaft 3, a gear shifting shaft sleeve 5 is installed at the top end of the gear shifting shaft 3, a crown gear 6 is installed between the gear shifting shaft sleeve 5 and the first motor 4 on the gear shifting shaft 3, the first motor 4 drives a pair of crown gears 6 to rotate, the crown gear 6 can convert the rotation of the motor into axial movement so as to realize the longitudinal movement of the gear shifting shaft 3, a gear shifting groove 7 is formed on the outer circumferential surface of one side of the gear shifting shaft sleeve 5, the gear shifting groove 7 comprises a longitudinal gear shifting groove 8 and a transverse gear shifting groove 9, two ends of the longitudinal gear shifting groove 8 are arc-shaped closed ends, and 10 transverse gear shifting grooves 9 which are uniformly distributed are symmetrically formed on two sides of the longitudinal gear shifting groove 8, the transverse shifting groove 9 is communicated with the longitudinal shifting groove 8, the positioning pin 2 and the shifting groove 7 can slide relatively, a longitudinal shifting gear 10 is arranged on the outer circumferential surface of the other side of the shifting shaft sleeve 5, a shifting rack 11 is horizontally arranged in the shell 1, the shifting rack 11 is meshed with the shifting gear 10, a second motor 12 is arranged on the shifting rack 11, and the shifting rack 11 is matched with the shifting shaft 3 to adjust gears.

Different horizontal shift groove 9 represents different fender position, 7 speed fender position have been represented respectively, 1 the fender position of backing a car, 1 the parking fender position, a neutral gear keeps the position, first motor 4 control gear shift shaft 3 longitudinal sliding drives vertical shift groove 8 and slides, realize the longitudinal displacement of vertical shift groove 8 and locating pin 2, select the fender promptly, then second motor 12 drives the rotation of horizontal shift groove 9 through the removal of control gear shift rack 11, make locating pin 2 get into different horizontal shift groove 9, and then realize the function of shifting.

Claims

1. The utility model provides a gear structure convenient to shift, includes the casing, is equipped with the selector shaft in the casing and shifts the rack, is equipped with first motor on the selector shaft, is equipped with second motor, its characterized in that on the rack of shifting: the gear shifting shaft is provided with a gear shifting shaft sleeve, a gear shifting gear is arranged on the outer surface of one side of the gear shifting shaft sleeve and meshed with a gear shifting rack, a gear shifting groove is arranged on the outer circumferential surface of the other side of the gear shifting shaft sleeve, and the shell is fixedly provided with a positioning pin which slides in the gear shifting groove relatively.

2. A gear structure for facilitating shifting according to claim 1, wherein: the gear shifting grooves comprise longitudinal gear shifting grooves and a plurality of transverse gear shifting grooves which are parallel to each other, the transverse gear shifting grooves are uniformly distributed on two sides of the longitudinal gear shifting grooves, and the transverse gear shifting grooves are communicated with the longitudinal gear shifting grooves.

3. A gear structure for facilitating shifting according to claim 2, wherein: the number of the transverse shifting grooves is 10.

4. A gear structure for facilitating shifting according to claim 2, wherein: two ends of the longitudinal gear shifting groove are arc-shaped closed ends.

5. A gear structure for facilitating shifting according to claim 2, wherein: the width of the longitudinal gear shifting groove is equal to that of the transverse gear shifting groove.

6. A gear structure for facilitating shifting according to claim 2, wherein: the widths of the longitudinal gear shifting groove and the transverse gear shifting groove are 3-4 mm.

7. A gear structure for facilitating shifting according to claim 1 or 2, wherein: and a crown gear is arranged between the first motor and the gear shifting shaft sleeve.