CN215891061U

CN215891061U - AMT gear shifting actuating mechanism

Info

Publication number: CN215891061U
Application number: CN202121718275.0U
Authority: CN
Inventors: 李磊; 吕小科; 王伟; 郭亚东
Original assignee: Suzhou Lvkon Transmission S&T Co Ltd
Current assignee: Suzhou Lvkon Transmission S&T Co Ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-22
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to an AMT gear shifting actuating mechanism which comprises a motor rotating hub, wherein a planetary reduction mechanism is arranged in the motor rotating hub, the planetary reduction mechanism comprises a sun gear, an inner gear, a planetary gear and a planetary carrier, the planetary gear is meshed between the sun gear and the inner gear and is connected with the planetary carrier, a driving piece is connected to the planetary carrier and is used for driving a gear shifting shaft to move, a motor main shaft is connected to the motor rotating hub, the sun gear is arranged on the motor main shaft, a rotor is connected to the outer portion of the hub, and the rotor is arranged in a stator. The utility model can effectively reduce the overall structure size of the AMT gear shifting actuating mechanism, improves the integration degree of the overall structure and is beneficial to improving the transmission efficiency.

Description

AMT gear shifting actuating mechanism

Technical Field

The utility model relates to the technical field of transmissions, in particular to an AMT gear shifting actuating mechanism.

Background

An electric control Mechanical automatic Transmission (AMT) can determine an optimal gear according to parameters such as vehicle speed, an accelerator, a driver command and the like, control the operation processes of clutch separation and engagement, gear picking and gear engaging of a gear shifting handle, synchronous adjustment of the accelerator opening degree of an engine and the like which are originally manually completed by a driver, and finally realize the control automation of the gear shifting process. But current AMT actuating mechanism that shifts integrates the degree lower, leads to overall structure size great, and transmission efficiency lower, can't satisfy the user demand.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defects of low integration degree and low transmission efficiency of the AMT gear shifting actuating mechanism in the prior art.

In order to solve the technical problem, the utility model provides an AMT gear shifting actuating mechanism which comprises a motor rotating hub, wherein a planetary reduction mechanism is arranged in the motor rotating hub, the planetary reduction mechanism comprises a sun gear, an inner gear, a planetary gear and a planetary carrier, the planetary gear is meshed between the sun gear and the inner gear and is connected with the planetary carrier, a driving piece is connected onto the planetary carrier and is used for driving a gear shifting shaft to move, a motor main shaft is connected onto the motor rotating hub, the sun gear is arranged on the motor main shaft, a rotor is connected to the outside of the motor rotating hub, and the rotor is arranged inside a stator.

In one embodiment of the present invention, the rotor includes a rotor core having a permanent magnet disposed therein, and the stator includes a stator core having a stator winding wound thereon.

In one embodiment of the utility model, the driving member is a driving gear, and the gear shift shaft is provided with a rack, and the driving gear is used for being meshed with the rack.

In one embodiment of the utility model, the driving member is a shifting protrusion, and a shifting block is arranged on the gear shifting shaft, and the shifting protrusion is used for shifting the shifting block.

In one embodiment of the utility model, a position sensor is connected to the motor spindle.

In one embodiment of the present invention, the position sensor employs a hall sensor or a resolver.

In one embodiment of the utility model, the motor hub and the motor spindle are connected by a key.

In one embodiment of the utility model, the motor rotating hub and the motor spindle are in interference connection.

In one embodiment of the utility model, the planet wheels rotate around a rotating shaft, and the rotating shaft is connected with the planet carrier.

In one embodiment of the present invention, a retaining ring is connected to the motor main shaft, and the retaining ring abuts against the motor rotating hub.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the AMT gear shifting actuating mechanism can effectively reduce the overall height and size of the AMT gear shifting actuating mechanism, improves the integration degree of the overall structure, and is beneficial to improving the transmission efficiency.

Drawings

In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.

FIG. 1 is a schematic structural view of an AMT shift actuator of the present invention;

the specification reference numbers indicate: 1. the motor rotates the hub; 2. a sun gear; 3. an internal gear; 4. a planet wheel; 5. a planet carrier; 6. a drive member; 7. a motor spindle; 8. a rotor; 81. a rotor core; 82. a permanent magnet; 9. a stator; 91. a stator core; 92. a stator winding; 10. a position sensor; 101. a Hall element; 102. a magnet; 11. a retainer ring; 12. a bearing; 13. a rotating shaft.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

Referring to fig. 1, this embodiment discloses an AMT gear shift actuating mechanism, including motor hub 1, motor hub 1 is inside to be provided with planetary reduction mechanism, planetary reduction mechanism includes sun gear 2, internal gear 3, planet wheel 4 and planet carrier 5, it has planet wheel 4 to mesh between sun gear 2 and the internal gear 3, planet wheel 4 is connected with planet carrier 5, be connected with driving piece 6 on planet carrier 5, the motion by planet carrier 5 drives driving piece 6 motion, thereby shift the axle removal and realize shifting by driving piece 6 drive selector, be fixed with motor spindle 7 on the motor hub 1, sun gear 2 sets up on motor spindle 7, the external connection of motor hub 1 has rotor 8, rotor 8 is installed inside stator 9.

According to the structure, the planetary speed reducing mechanism is arranged inside the motor rotating hub 1, so that the overall height of the AMT gear shifting actuating mechanism can be effectively reduced, the integration level of the overall structure is improved, the number of transmission links is small, the transmission efficiency is improved, and the overall shock resistance and the operation reliability are also greatly improved; in addition, the gear shifting shaft is driven to move through the planet carrier of the planetary speed reducing mechanism so as to realize gear shifting action, and the gear shifting reliability and the gear shifting efficiency are improved.

In one embodiment, the rotor 8 includes a rotor core 81, a permanent magnet 82 is disposed in the rotor core 81, the stator 9 includes a stator core 91, and a stator winding 92 is wound on the stator core 91 to form a brushless motor structure, so as to prolong the service life of the motor.

In one embodiment, the driving member 6 is a driving gear, a rack is disposed on the shift shaft, the driving gear is configured to engage with the rack, and the driving gear drives the rack to move, so as to drive the shift shaft to move to shift gears. Specifically, gear teeth may be machined on the carrier 5 to directly form the drive gear.

In another embodiment, the driving member 6 can also adopt a shifting protrusion, a shifting block is arranged on the gear shifting shaft, and the shifting protrusion is used for shifting the shifting block to move, so that the gear shifting shaft is driven to move to shift gears.

In one embodiment, a position sensor 10 is connected to the motor spindle 7 to detect the rotation angle of the planet carrier 5, so as to obtain the position information of the driving member 6, and further determine the movement position of the shift shaft, so as to feed back the shift position in real time, thereby forming closed-loop control.

In one embodiment, the position sensor 10 is a hall sensor or a resolver.

Further, the hall sensor includes a hall element 101 and a magnet 102, and the magnet 102 is provided on the motor spindle 7.

In addition, a position sensor may be provided on the shift shaft to detect the shift position.

In one embodiment, the motor hub 1 and the motor spindle 7 are keyed.

In one embodiment, the motor hub 1 and the motor spindle 7 may be connected by interference, or the motor hub 1 and the motor spindle 7 may be integrally formed.

In one embodiment, the planet gears 4 rotate around a rotating shaft 13, and the rotating shaft 13 is connected with the planet carrier 5.

In one embodiment, a squirrel cage may be connected to the rotating shaft 13 to achieve double-end fixing of the rotating shaft 13 and improve rigidity of the rotating shaft 13.

In one embodiment, a retaining ring 11 is connected to the motor spindle 7, and the retaining ring 11 abuts against the motor hub 1.

In one embodiment, a bearing is connected to the motor spindle 7; the planet carrier 5 is also connected with a bearing 12 so as to be connected with parts such as a shell and an end cover.

The working principle of the AMT gear shift actuating mechanism of this embodiment is: the alternating frequency and the waveform of the current wave input to the stator winding 92 are changed, a magnetic field rotating around the geometric axis of the motor is formed around the stator winding 92, the magnetic field drives the rotor 8 to rotate, so that the motor rotating hub 1 and the motor spindle 7 are driven to rotate together, the motor spindle 7 can drive the planetary reduction mechanism to move in a rotating mode (the internal gear 3 is fixed, the motor spindle 7 drives the sun gear 2 to rotate, and the sun gear 2 outputs power to the planet carrier 5 through the planet gear 4 and the internal gear 3), so that the planet carrier 5 moves, the driving piece 6 is driven to move by the movement of the planet carrier 5, and the gear shifting shaft is driven by the driving piece 6 to move to realize gear shifting.

The AMT gear shifting actuating mechanism of the embodiment can effectively reduce the overall height and size of the AMT gear shifting actuating mechanism, improves the integration degree of the overall structure, and is beneficial to improving the transmission efficiency; the control precision is high, the product adaptability is strong, the production cost is saved, the gearbox is suitable for gearboxes with different gears, and the gearbox can be applied to new energy hybrid power products and is convenient to popularize and apply.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the utility model may be made without departing from the spirit or scope of the utility model.

Claims

1. The utility model provides an AMT actuating mechanism that shifts which characterized in that: including the motor commentaries on classics hub, the motor is provided with planetary reduction mechanism in changeing the hub, planetary reduction mechanism includes sun gear, internal gear, planet wheel and planet carrier, the meshing has the planet wheel between sun gear and the internal gear, the planet wheel with the planet carrier is connected, be connected with the driving piece on the planet carrier, the driving piece is used for the drive to shift the axle and removes, be connected with motor spindle on the motor commentaries on classics hub, the sun gear sets up on the motor spindle, motor commentaries on classics hub external connection has the rotor, the rotor is installed inside the stator.

2. The AMT shift actuator of claim 1, wherein: the rotor comprises a rotor core, a permanent magnet is arranged in the rotor core, the stator comprises a stator core, and a stator winding is wound on the stator core.

3. The AMT shift actuator of claim 1, wherein: the driving piece is a driving gear, a rack is arranged on the gear shifting shaft, and the driving gear is meshed with the rack.

4. The AMT shift actuator of claim 1, wherein: the driving piece is a shifting protrusion, a shifting block is arranged on the gear shifting shaft, and the shifting protrusion is used for shifting the shifting block.

5. The AMT shift actuator of claim 1, wherein: and the motor main shaft is connected with a position sensor.

6. The AMT shift actuator of claim 5, wherein: the position sensor adopts a Hall sensor or a rotary transformer.

7. The AMT shift actuator of claim 1, wherein: the motor rotating hub and the motor spindle are connected through a key.

8. The AMT shift actuator of claim 1, wherein: the motor rotating hub and the motor spindle are in interference connection.

9. The AMT shift actuator of claim 1, wherein: the planet wheel rotates around a rotating shaft, and the rotating shaft is connected with the planet carrier.

10. The AMT shift actuator of claim 1, wherein: the motor spindle is connected with a retainer ring, and the retainer ring is abutted against the motor rotating hub.