CN213871069U

CN213871069U - Gear shifting mechanism for two-gear AMT (automated mechanical Transmission)

Info

Publication number: CN213871069U
Application number: CN202022903042.XU
Authority: CN
Inventors: 洪智
Original assignee: Nanjing Sikaiqi Automobile Technology Co ltd
Current assignee: Nanjing Sikaiqi Automobile Technology Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-03
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a gear shifting mechanism for a two-gear AMT gearbox, which comprises a shell, wherein a driving shaft and a driven shaft are rotatably arranged in the shell, one end of the driving shaft extends to the outer side of the shell and is provided with a motor for driving the driving shaft to rotate; a driving gear and a driven gear are respectively arranged on the driving shaft and the driven shaft which are positioned in the shell, and the driving gear is meshed with the driven gear; a limiting shaft is fixedly arranged in the shell below the driven shaft, the axis of the limiting shaft is perpendicular to that of the driven shaft, a sliding shifting block is arranged on the limiting shaft in a sliding mode and comprises a sliding portion and a shifting block rod, the sliding portion is connected to the limiting shaft in a sliding mode, a rack structure is formed at the top of the sliding portion and meshed with the driven gear, and the shifting block rod is arranged at the bottom of the sliding portion and extends downwards to the outer side of the shell to be clamped on a gear shifting block of the gearbox; the utility model discloses simple structure, safe and reliable, long service life, low in manufacturing cost avoids shifting inefficacy, eliminates the potential safety hazard.

Description

Gear shifting mechanism for two-gear AMT (automated mechanical Transmission)

Technical Field

The utility model relates to an automatically controlled mechanical type automatic gearshift for pure electric vehicles, hybrid vehicle especially relates to a gearshift for two keep off AMT gearboxes, belongs to motor transmission gear shifting equipment technical field.

Background

With the rapid development of new energy automobiles, the new energy automobiles gradually enter thousands of households, the holding amount of the new energy automobiles in the market is increased year by year, and the new energy automobiles and the traditional automobiles have some differences in structure, so that parts and parts between the new energy automobiles and the traditional automobiles cannot be completely universal; at present, the gearshift of two present fender AMT gearboxes is mostly the motor drive ball screw pair and accomplishes the gear shifting, and the manufacturing cost of this kind of mode is high, and after long-time the use, ball screw has the inefficacy risk moreover, has the potential safety hazard.

Disclosure of Invention

For solving prior art's not enough, the utility model provides a gearshift for two keep off AMT gearboxes, simple structure, safe and reliable, long service life, low in manufacturing cost avoids shifting inefficacy, eliminates the potential safety hazard.

The utility model discloses the technical scheme who adopts does:

a gear shifting mechanism for a two-gear AMT (automated mechanical transmission) comprises a shell, wherein an opening is formed in the bottom of the shell, a driving shaft and a driven shaft are arranged in the shell, two ends of the driving shaft and two ends of the driven shaft are respectively and rotatably connected with the shell, one end of the driving shaft extends to the outer side of the shell, and a motor used for driving the driving shaft to rotate is arranged at the end part of the driving shaft extending to the outer side of the shell; a driving gear is arranged on a driving shaft positioned in the shell, a driven gear is arranged on a driven shaft positioned in the shell, and the driving gear is meshed with the driven gear; the inside fixed spacing axle that is provided with of casing below the driven shaft, and the axis of spacing axle is perpendicular with the axis of driven shaft, and the slip is provided with the slip shifting block at spacing epaxial slip, the slip shifting block includes sliding part and shifting block pole, sliding part sliding connection is epaxial spacing, is formed with rack structure at the top of sliding part, rack structure and driven gear meshing, the shifting block pole sets up the bottom at the sliding part, shifting block pole downwardly extending to the casing outside and joint are on the shifting block of gearbox.

As a further preferred aspect of the present invention, the sliding portion of the sliding dial is a cylindrical tube structure.

As a further preference of the utility model, the sliding part of the sliding shifting block is connected to the spacing shaft in a sliding way through two self-lubricating bearings; the sliding effect of the sliding shifting head on the limiting shaft is improved.

As a further preferred aspect of the present invention, the dial rod of the sliding dial is disposed at the middle position of the bottom of the sliding portion; the acting force is conveniently and evenly distributed on the sliding shifting head.

As a further preference of the utility model, two ends of the driving shaft and the driven shaft are respectively connected with the shell in a rotating way through self-lubricating bearings; the rotating efficiency of the driving shaft and the driven shaft when the driving shaft and the driven shaft rotate freely relative to the shell is improved.

As a further preferred aspect of the present invention, one end of the driven shaft extends to the outside of the housing, and an angle sensor is provided at an end portion of the driven shaft extending to the outside of the housing; the left and right displacement of the sliding shifting block is controlled through measurement and calculation of the angle sensor, so that the gear shifting stroke of the gear shifting block of the gearbox is controlled.

As a further preferred aspect of the present invention, the diameter of the driving gear is smaller than the diameter of the driven gear; the transmission torque is increased by the transmission ratio of the driving gear and the driven gear.

As a further preferred aspect of the present invention, the motor is a low voltage dc motor; the low-voltage direct current motor has quick control response and high precision, and can reduce the manufacturing cost.

As a further preferred aspect of the present invention, the end of the limit shaft is fixedly mounted on the housing through a shaft cover.

The beneficial effects of the utility model reside in that: the motor is used for driving the driving shaft and the driving gear to rotate, the driving gear drives the driven gear and the driven shaft to rotate, a rack structure at the top of the sliding part of the sliding shifting block is meshed with the driven gear, the driven gear drives the sliding shifting block to move left and right along the limiting shaft by utilizing the transmission principle of a gear rack, and a shifting block rod of the sliding shifting block shifts a gear box to complete gear shifting of the gear box; the gear shifting of the gearbox is completed by utilizing a gear and rack transmission principle; overall structure is simple, safe and reliable, long service life, and low in manufacturing cost avoids shifting the inefficacy, eliminates the potential safety hazard.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

the main reference numerals in the figures have the following meanings:

11-driving shaft, 12-driven shaft, 13-limiting shaft, 21-driving gear, 22-driven gear, 3-sliding shifting block, 31-sliding part, 32-shifting block rod, 4-self-lubricating bearing, 5-motor, 6-angle sensor, 7-shaft cover, 8-gear box shifting block and 9-shell.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2: the embodiment is a gear shifting mechanism for a two-gear AMT (automated mechanical transmission), which comprises a shell 9, wherein an opening is formed in the bottom of the shell 9, a driving shaft 11 and a driven shaft 12 are arranged inside the shell 9, two ends of the driving shaft 11 and the driven shaft 12 are respectively and rotatably connected with the shell 9, one end of the driving shaft 11 extends to the outer side of the shell 9, and a motor 5 for driving the driving shaft 11 to rotate is arranged at the end part of the driving shaft 11 extending to the outer side of the shell 9; a driving gear 21 is arranged on a driving shaft 11 positioned in the shell 9, a driven gear 22 is arranged on a driven shaft 12 positioned in the shell 9, and the driving gear 21 and the driven gear 22 are mutually meshed; inside fixed spacing axle 13 that is provided with of casing 9 below driven shaft 12, and the axis of spacing axle 13 is perpendicular with the axis of driven shaft 12, it is provided with slip shifting block 3 to slide on spacing axle 13, slip shifting block 3 includes sliding part 31 and shifting block rod 32, sliding part 31 sliding connection is on spacing axle 13, be formed with rack structure at the top of sliding part 31, rack structure and driven gear 22 mesh, shifting block rod 32 sets up the bottom at sliding part 31, shifting block rod 32 downwardly extending to the casing 9 outside and joint are on gearbox shifting block 8.

In the present embodiment, the sliding portion 31 of the sliding dial 3 is a cylindrical tube-shaped structure; the sliding part 31 of the sliding shifting block 3 is connected to the limiting shaft 13 in a sliding way through two self-lubricating bearings 4; the sliding effect of the sliding shifting block 3 on the limiting shaft 13 is improved; the shifting block rod 32 of the sliding shifting block 3 is arranged at the middle position of the bottom of the sliding part 31; so that the acting force is evenly distributed on the sliding shifting block 3.

In the embodiment, two ends of a driving shaft 11 and a driven shaft 12 are respectively connected with a shell 9 in a rotating way through self-lubricating bearings; the rotational efficiency of the drive shaft 11 and the driven shaft 12 in free rotation with respect to the housing 9 is improved.

In the present embodiment, one end of the driven shaft 12 extends to the outside of the housing 9, and the angle sensor 6 is provided at the end of the driven shaft 12 extending to the outside of the housing 9; the left and right displacement of the sliding shifting block 3 is controlled through measurement and calculation of the angle sensor 6, so that the gear shifting stroke of the gear shifting block 8 of the gearbox is controlled.

In the present embodiment, the diameter of the driving gear 21 is smaller than that of the driven gear 22; the transmission torque is increased by the gear ratio of the drive gear 21 and the driven gear 22.

The motor 5 adopted in the embodiment is a low-voltage direct current motor; the low-voltage direct current motor has quick control response and high precision, and can reduce the manufacturing cost.

In this embodiment, the end of the stopper shaft 13 is fixedly mounted on the housing 9 through the shaft cover 7.

In the embodiment, a motor is used for driving a driving shaft and a driving gear to rotate, the driving gear drives a driven gear and a driven shaft to rotate, a rack structure at the top of a sliding part of a sliding shifting block is meshed with the driven gear, the driven gear drives the sliding shifting block to move left and right along a limiting shaft by utilizing the transmission principle of a gear rack, and a shifting block rod of the sliding shifting block shifts a gear box to complete gear shifting of the gear box; the gear shifting of the gearbox is completed by utilizing a gear and rack transmission principle; overall structure is simple, safe and reliable, long service life, and low in manufacturing cost avoids shifting the inefficacy, eliminates the potential safety hazard.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a gearshift for two keep off AMT gearboxes which characterized in that: the motor comprises a shell, wherein an opening is formed in the bottom of the shell, a driving shaft and a driven shaft are arranged in the shell, two ends of the driving shaft and two ends of the driven shaft are respectively connected with the shell in a rotating mode, one end of the driving shaft extends to the outer side of the shell, and a motor used for driving the driving shaft to rotate is arranged at the end portion, extending to the outer side of the shell, of the driving shaft; a driving gear is arranged on a driving shaft positioned in the shell, a driven gear is arranged on a driven shaft positioned in the shell, and the driving gear is meshed with the driven gear; the inside fixed spacing axle that is provided with of casing below the driven shaft, and the axis of spacing axle is perpendicular with the axis of driven shaft, and the slip is provided with the slip shifting block at spacing epaxial slip, the slip shifting block includes sliding part and shifting block pole, sliding part sliding connection is epaxial spacing, is formed with rack structure at the top of sliding part, rack structure and driven gear meshing, the shifting block pole sets up the bottom at the sliding part, shifting block pole downwardly extending to the casing outside and joint are on the shifting block of gearbox.

2. A gear shift mechanism for a two speed AMT-transmission according to claim 1, wherein the sliding portion of the sliding pick is of cylindrical tubular structure.

3. The gearshift mechanism for a two-speed AMT gearbox according to claim 1 or 2, wherein the sliding portion of the sliding shifter is slidably connected to the limit shaft through two self-lubricating bearings.

4. A gear shift mechanism for a two-speed AMT gearbox according to claim 1 or 2, characterized in that the tap lever of the sliding tap is arranged in a bottom middle position of the sliding portion.

5. The gearshift mechanism for a two-speed AMT transmission according to claim 1, wherein the two ends of the driving shaft and the driven shaft are rotatably connected with the housing through self-lubricating bearings, respectively.

6. A gear shift mechanism for a two speed AMT gearbox according to claim 1 or 5 wherein one of said driven shafts extends to the outside of the housing and an angle sensor is provided at the end of the driven shaft extending to the outside of the housing.

7. A gear change mechanism for a two speed AMT-transmission according to claim 1, wherein the driving gear has a smaller diameter than the driven gear.

8. A gear shift mechanism for a two speed AMT gearbox according to claim 1 wherein said electric machine is a low voltage dc electric machine.

9. A gear shift mechanism for a two speed AMT-gearbox according to claim 1, wherein the end of said limit shaft is fixedly mounted on the housing by a shaft cover.