CN206361138U - The gear automatic speed variator of electric automobile three with brushless line traffic control centrifugal globe arm engagement device - Google Patents

Abstract

The utility model discloses a three-speed automatic transmission for an electric vehicle with a brushless wire-controlled centrifugal ball arm joint device. A brushless wire-controlled centrifugal ball arm joint device is provided between each gear input gear and each gear gear; by controlling the engagement and separation of the brushless wire-controlled centrifugal ball arm joint device, the brushless wire-controlled centrifugal ball arm is realized Engagement device for shift control of electric vehicle three-speed automatic transmission. The utility model has the advantages of compact structure, dynamic gear shifting, no mechanical or hydraulic gear shifting parts, low operating energy consumption and the like.

Description

Three-speed automatic transmission for electric vehicles with brushless drive-by-wire centrifugal ball-arm joint

technical field

The utility model belongs to the technical field of automobile transmission and relates to an automatic transmission for automobiles, more precisely a three-speed automatic transmission for electric automobiles with a brushless wire-controlled centrifugal ball arm joint device.

Background technique

Automatic transmissions are widely used in various vehicles such as automobiles, electric vehicles, and construction machinery. The existing automatic transmissions mainly include hydromechanical automatic transmission (AT), metal belt continuously variable automatic transmission (CVT), mechanical automatic transmission (AMT) and dual clutch automatic transmission (DCT). The shifting process control of the above four types of automatic transmissions are all realized by electronically controlled hydraulic servo devices. The hydraulic servo devices are composed of hydraulic pumps, multiple hydraulic valves, multiple hydraulic clutches, multiple brakes, etc., with complex structures and high costs. High energy consumption.

With the wide application of automotive electronic technology, automatic control technology and automotive network communication technology, automotive wire control technology has become the future development trend of automobiles. The car X-By-Wire technology is to replace the mechanical and hydraulic systems by wires, electronic controllers and wire-controlled actuators, and convert the driver's manipulation actions into electrical signals through sensors, which are input to the electronic control unit, and are controlled by the electronic control unit. The electronic control unit generates control signals to drive the wire-controlled actuators to perform required operations. Therefore, the development of a new type of automatic transmission by wire is conducive to reducing the number of its components, reducing costs and energy consumption, and improving transmission efficiency.

On January 21, 2015, China Patent announced the patent of multi-speed ring-arranged wire-controlled automatic transmission with application number CN201410469568.8 and the patent of two-stage wire-controlled multi-speed automatic transmission with application number CN201410468564.8; March 2015 On the 4th, China Patent announced the patent of electric vehicle three-speed wire-controlled automatic transmission with application number CN201410469720.2 and the patent of electric vehicle multi-speed wire-controlled automatic transmission with application number CN201410471726.3; October 28, 2015, China The patent announced the patent of multi-speed wire-controlled automatic transmission with application number CN201520311494.5. In the above-mentioned published patents, the transmission gears of each gear are constantly meshing, there is no hydraulic shifting element, electromagnetic clutches are respectively arranged on the transmission lines of each gear, and the electronic control unit controls the engagement and separation of the electromagnetic clutches of each gear to realize the wire-controlled shifting process. However, in the above-mentioned patented technologies, the electromagnetic clutch used to realize the shift-by-wire process is large in size and low in speed, and the power consumption required by the electromagnetic clutch is large, so the automatic transmission by wire has a large volume, low speed and low operating performance. consumes more.

Utility model content

The purpose of this utility model is to overcome the deficiencies of various existing automatic transmission technologies, and provide a new type of centrifugal ball arm with brushless wire control, which can realize power shifting, and has simple structure, low cost and low energy consumption in operation. Engaging device for electric vehicle three-speed automatic transmission.

The technical scheme of the utility model is as follows:

A three-speed automatic transmission for electric vehicles with a brushless wire-controlled centrifugal ball arm joint device, including an input shaft, an output shaft, an input gear, a first-speed input gear, a second-speed input gear, a first-speed driving gear, and a second-speed driving gear; The input gear is fixedly installed on the input shaft; the input gear is constantly meshed with the first gear input gear and the second gear input gear respectively along the circumferential outer side of the gears.

It is characterized in that it also includes three brushless wire-controlled centrifugal ball arm joint devices, a first gear brushless electromagnet, a second gear brushless electromagnet, and a third gear brushless electromagnet, a total of three brushless electromagnets.

Each of the brushless wire-controlled centrifugal ball arm joint devices includes a thrust pressure plate, a driven inner spline hub, a wire-controlled drive plate, a preload spring, a centrifugal ball arm hollow wheel, a centrifugal ball arm pin, a centrifugal ball arm, Centrifugal ball, magnetic transmission plate, centrifugal ball socket, driving shaft. The centrifugal ball-arm hollow wheel is mounted on the drive shaft through bearing rolling support, and the outer circumferential surface of one end of the centrifugal ball-arm hollow wheel is provided with an outer spline groove of the centrifugal ball-arm hollow wheel; the wire-controlled drive plate The inner spline groove is set on the outer spline groove of the hollow wheel of the centrifugal ball arm, and the preload spring is arranged between the end of the outer spline groove of the hollow wheel of the centrifugal ball arm and the inner end surface of the wire-controlled drive plate; the wire The control drive disc is provided with a frictional drive end face; the other end of the hollow wheel disc of the centrifugal ball arm is provided with a plurality of centrifugal ball arm supports evenly distributed along the circumferential direction, and a centrifugal ball is fixedly installed on each centrifugal ball arm support. arm pin; one end of the centrifugal ball arm is sleeved on the intermediate journal of the centrifugal ball arm pin through its smooth bearing hole, and the centrifugal ball arm can rotate freely around the centrifugal ball arm pin; the other end of the centrifugal ball arm is set There is a centrifugal ball socket, a centrifugal ball is installed in each centrifugal ball socket, and each centrifugal ball can roll freely in the centrifugal ball socket.

One end surface of the thrust pressure plate is a smooth surface; each of the centrifugal balls is against the smooth surface of the thrust pressure plate; an external spline groove is also provided on the outer peripheral surface of the thrust pressure plate, and the thrust pressure plate The outer spline grooves of the disc are in axial sliding engagement with the inner spline grooves of the driven inner spline hub.

The magnetic force transmission disc is fixedly installed on the journal of the drive shaft through the inner hub bearing hole in the center of the magnetic force transmission disc; the magnetic force transmission disc is provided with an outer disc of the magnetic force transmission disc.

A brushless wire-controlled centrifugal ball arm engaging device is provided between the first-gear input gear and the first-gear driving gear. The brushless wire-controlled centrifugal ball arm engaging device serves as a first-gear power transmission engaging device. The brushless wire One end of the driving shaft of the centrifugal ball arm engaging device is connected to one end of the first gear input gear; a brushless electromagnet is arranged between the brushless wire-controlled centrifugal ball arm engaging device and the first gear input gear.

A brushless wire-controlled centrifugal ball arm engaging device is provided between the second-gear input gear and the second-gear driving gear, and the brushless wire-controlled centrifugal ball arm engaging device is used as a second-gear power transmission engaging device. The brushless wire One end of the driving shaft of the centrifugal control ball arm joint device is connected with the second gear input gear; a second gear brushless electromagnet is arranged between the brushless wire control centrifugal ball arm joint device and the second gear input gear.

A brushless wire-controlled centrifugal ball arm engaging device is provided between the input gear and the output shaft, and the brushless wire-controlled centrifugal ball arm engaging device is used as a third-speed power transmission engaging device. The brushless wire-controlled centrifugal ball arm One end of the drive shaft of the engagement device is connected to one end of the input shaft; a third-speed brushless electromagnet is arranged between the brushless wire-controlled centrifugal ball arm engagement device and the input gear.

The first gear brushless electromagnet, the second gear brushless electromagnet, and the third gear brushless electromagnet are all fixedly installed on the transmission housing through non-magnetic materials.

The magnetic end faces of the brushless electromagnet of the first gear and the opposite end faces of the outer disk of the magnetic transmission force transmission disc of the brushless wire-controlled centrifugal ball arm joint device as the power transmission device of the first gear always maintain a certain air gap; When the brushless electromagnet is not energized, the friction drive end face of the wire-controlled drive disc of the brushless wire-controlled centrifugal ball arm joint device as the first-gear power transmission device and the brushless wire-controlled centrifugal ball arm joint device as the first-gear power transmission device One end surface of the outer disc of the magnetically conductive force transmission disc of the centrifugal ball arm joint device maintains a certain air gap under the elastic force of the pre-compressed spring of the brushless wire-controlled centrifugal ball arm joint device as the first gear power transmission device; the first gear When the brushless electromagnet is energized, the friction drive end face of the wire-controlled drive disk of the brushless wire-controlled centrifugal ball arm joint device as the first-speed power transmission device and the brushless wire-controlled centrifugal ball arm joint device as the first-speed power transmission device One end surface of the outer disk of the magnetically conductive force transmission disk of the ball arm joint device is joined together against the elastic force of the pre-compressed spring of the brushless wire-controlled centrifugal ball arm joint device as the first gear power transmission device.

A certain air gap is always maintained between the pole end faces of the second gear brushless electromagnet and the opposite end face of the outer disk of the magnetically conductive force transmission disc of the brushless wire-controlled centrifugal ball arm joint device of the second gear power transmission device; When the brushless electromagnet is not energized, the friction drive end face of the wire-controlled drive disc of the brushless wire-controlled centrifugal ball arm joint device as the second-speed power transmission device and the brushless wire-controlled drive disk as the second-speed power transmission device One end surface of the outer disk of the magnetically conductive force transmission disk of the centrifugal ball arm joint device maintains a certain air gap under the elastic force of the pre-compressed spring of the brushless wire-controlled centrifugal ball arm joint device as the second gear power transmission device; the second gear When the brushless electromagnet is energized, the friction drive end face of the wire-controlled drive disc of the brushless wire-controlled centrifugal ball arm joint device as the second-speed power transmission device and the brushless wire-controlled centrifugal ball arm joint device as the second-speed power transmission device One end surface of the outer disk of the magnetically conductive force transmission disk of the ball arm joint device is joined together against the elastic force of the pre-compressed spring of the brushless wire-controlled centrifugal ball arm joint device as the second gear power transmission device.

A certain air gap is always maintained between the magnetic end faces of the third-gear brushless electromagnet and the opposite end face of the outer disk of the magnetically conductive force transmission disc of the brushless wire-controlled centrifugal ball arm joint device of the third-gear power transmission device; When the brushless electromagnet is not energized, the friction drive end face of the wire-controlled drive disc of the brushless wire-controlled centrifugal ball arm joint device as the third-speed power transmission device and the brushless wire-controlled drive disk as the third-speed power transmission device One end surface of the outer disk of the magnetically conductive force transmission disc of the centrifugal ball arm joint device maintains a certain air gap under the elastic force of the pre-compressed spring of the brushless wire-controlled centrifugal ball arm joint device as the third gear power transmission device; the third gear When the brushless electromagnet is energized, the friction drive end face of the wire-controlled drive disc of the brushless wire-controlled centrifugal ball arm joint device as the third-speed power transmission device and the brushless wire-controlled centrifugal ball arm joint device as the third-speed power transmission device One end surface of the outer disk of the magnetically conductive force transmission disk of the ball arm joint device is joined together against the elastic force of the pre-compressed spring of the brushless wire-controlled centrifugal ball arm joint device as the third gear power transmission device.

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

(1) The three-speed automatic transmission for electric vehicles with a brushless wire-controlled centrifugal ball arm joint device of the present utility model cancels the hydraulic system and shift mechanism of a traditional automatic transmission, and adopts a brushless wire-controlled centrifugal ball arm joint device, The electronic control unit adopts wire control to control the on-off of the current of the electromagnetic coil of the centrifugal ball arm joint device to realize gear shifting, the structure is simple, the cost is low, and the energy consumption in the operation process is low;

(2) The brushless wire-controlled centrifugal ball arm joint device of each gear used in the utility model utilizes the huge centrifugal force generated by the centrifugal ball arm of each gear during high-speed operation to promote the frictional engagement between the friction plate and the steel plate, and the transmission torque is large and the rotation speed is high. High, there is no impact during the engagement process, and the shifting is smooth.

Description of drawings

Fig. 1 is a schematic structural view of a three-speed automatic transmission for an electric vehicle with a brushless wire-controlled centrifugal ball arm joint device according to an embodiment of the present invention.

Fig. 2 is a structural schematic diagram of the brushless wire-controlled centrifugal ball arm joint device of each gear power transmission device according to the embodiment of the utility model (taking the first gear as an example).

In the figure: 1. Input gear 1Z. Input shaft 1WT. First gear brushless electromagnet 2WT. Second gear brushless electromagnet 3WT. Third gear brushless electromagnet 2A. First gear driven gear 2B. Second gear driven gear 2Z .Output shaft 10.Brushless wire control centrifugal ball arm joint device 10a.Friction plate with inner spline groove 10b.Steel plate with outer spline groove 10c.Thrust pressure plate 10ca.Smooth surface 10d.Driven inner spline hub 10e.From Moving inner spline hub end cover 10f. Stop disc 10g. Wire control drive disc 10ga. Friction drive end face 10i. Preload spring 10j. Centrifugal ball arm hollow wheel disc 10ja. Ball arm pin 10l. Centrifugal ball arm 10m. Centrifugal ball 10p. Centrifugal ball arm return spring 10q. Magnetic force transmission plate 10qa. Magnetic force transmission plate center inner hub 10qb. Magnetic force transmission plate outer plate 10r. Centrifugal ball socket 10Z. Driving shaft 11. First gear input gear 12. Second gear input gear 21. First gear driving gear 21P. First gear shaft connecting plate 21Z. First gear shaft 22. Second gear driving gear 22P. Second gear shaft connecting plate 22Z. Two Gear shaft 23P. Output shaft connection plate.

detailed description

Below in conjunction with the accompanying drawings in the utility model embodiment, the technical solution in the utility model embodiment is described in detail, obviously, the described embodiment is only a part of the utility model embodiment, rather than all embodiments; For the embodiments in the utility model, all other embodiments obtained by persons of ordinary skill in the art without creative work belong to the scope of protection of the utility model.

As shown in Figure 1, the three-speed automatic transmission for electric vehicles with a brushless wire-controlled centrifugal ball arm joint device of the present invention includes an input shaft 1Z, an output shaft 2Z, an input gear 1, a first-gear input gear 11, and a second-gear input gear. Gear 12, first gear driving gear 21, second gear driving gear 22; input gear 1 is fixedly installed on the input shaft 1Z; input gear 1 is constantly meshed with first gear input gear 11 and second gear input gear 12 respectively along the circumferential outer side of the gear; It also includes three brushless wire-controlled centrifugal ball arm joint devices 10, a first gear brushless electromagnet 1WT, a second gear brushless electromagnet 2WT, and a third gear brushless electromagnet 3WT, a total of three brushless electromagnets.

As shown in Figure 2, each brushless wire-controlled centrifugal ball arm engagement device 10 includes a friction plate 10a with an inner spline groove, a steel sheet 10b with an outer spline groove, a thrust pressure plate 10c, a driven inner spline hub 10d, a driven Inner spline hub end cover 10e, stop disc 10f, remote drive disc 10g, preload spring 10i, centrifugal ball arm hollow wheel disc 10j, centrifugal ball arm pin 10k, centrifugal ball arm 10l, centrifugal ball 10m, centrifugal ball arm Return spring 10p, magnetic conduction force transmission disk 10q, centrifugal ball socket 10r, drive shaft 10Z.

The friction plate 10a with inner spline groove is set on the outer spline groove of the driving shaft 10Z through its inner spline groove; the steel plate with outer spline groove 10b is set on the inner spline groove of the driven inner spline hub 10d through its outer spline groove; One end face of the thrust platen 10c is a smooth surface 10ca, and the other end face of the thrust platen 10c is a rough friction surface; the outer circumferential surface of the thrust platen 10c is also provided with an external spline groove, and the external spline groove of the thrust platen 10c is in contact with The two inner spline grooves of the driven inner spline hub 10d are axially slidably engaged; the centrifugal ball arm hollow wheel disc 10j is mounted on the driving shaft 10Z through bearing rolling support, and the outer circumferential surface of one end of the centrifugal ball arm hollow wheel disc 10j is provided with There is an outer spline groove 10ja of the centrifugal ball arm hollow wheel disc, and the wire control drive disc 10g is set on the outer spline groove 10ja of the centrifugal ball arm hollow wheel disc through its inner spline groove, and the wire control drive disc 10g is provided with a friction driving end surface 10ga; The other end of the arm hollow wheel disc 10j is provided with a plurality of centrifugal ball arm supports evenly distributed along the circumference, and a centrifugal ball arm pin 10k is fixedly installed on each centrifugal ball arm support; one end of the centrifugal ball arm 10l passes through its smooth The bearing hole is set on the intermediate journal of the centrifugal ball arm pin 10k, the centrifugal ball arm 10l can rotate freely around the centrifugal ball arm pin 10k, and the other end of the centrifugal ball arm 10l is provided with a centrifugal ball socket 10r, each centrifugal ball socket 10r There is a centrifugal ball 10m installed inside, and each centrifugal ball 10m can roll freely in the centrifugal ball socket 10r; the magnetic force transmission plate 10q is fixedly installed on the journal of the drive shaft 10Z through the inner hub 10qa bearing hole in the center of the magnetic force transmission plate Above; the magnetic force transmission disk 10q is provided with the magnetic transmission force transmission disk outer disk 10qb.

As shown in Figures 1 and 2, a brushless wire-controlled centrifugal ball arm joint device 10 is provided between the first-gear input gear 11 and the first-gear driving gear 21, and the brushless wire-controlled centrifugal ball-arm joint device 10 serves as the first gear Power transmission coupling device, one end of the drive shaft 10Z of the brushless wire-controlled centrifugal ball arm coupling device 10 is fixedly connected to the first gear input gear 11 through a spline, and the other end is connected to the front journal of the first gear shaft 21Z through a bearing; One end of the driven inner spline hub 10d of the brushless wire-controlled centrifugal ball-arm joint device 10 close to the first gear input gear 11 is fixedly connected to the driven inner spline hub end of the brushless wire-controlled centrifugal ball-arm joint device 10 by bolts The cover 10e is fixedly connected to the first gear shaft connecting plate 21P at the end away from the first gear input gear 11; a first gear brushless electromagnet 1WT is arranged between the brushless wire-controlled centrifugal ball arm joint device 10 and the first gear input gear 11; The stop plate 10f of the brushless wire-controlled centrifugal ball arm joint device 10 and the first gear brushless electromagnet 1WT are fixedly installed on the transmission housing through a non-magnetic material; The outer disk 10qb of the force transmission disc and the magnetic end faces of the first-grade brushless electromagnet 1WT always maintain a certain air gap; The frictional drive end surface 10ga of the drive-by-wire drive plate 10g and one end surface of the outer disk 10qb of the magnetically conductive force transmission disk 10qb of the brushless control-by-wire centrifugal ball arm joint device 10 are connected to the pre-compressed spring 10i of the brushless control-by-wire centrifugal ball arm joint device 10 Under the effect of maintaining a certain air gap; the first gear brushless electromagnet 1WT is in the energized state, the friction drive end face 10ga of the wire control drive disc 10g of the brushless wire control centrifugal ball arm joint device 10 and the brushless wire control One end surface of the outer disk 10qb of the magnetically permeable force transmission disk of the centrifugal ball arm joint device 10 is jointed together.

Between the second gear input gear 12 and the second gear driving gear 22, there is a brushless wire-controlled centrifugal ball arm joint device 10, which is used as the second gear power transmission joint device. One end of the drive shaft 10Z of the centrifugal control ball arm joint device 10 is fixedly connected with the second gear input gear 12 through a spline, and the other end is connected with the front journal of the second gear shaft 22Z through a bearing; the brushless wire control centrifugal ball arm joint One end of the driven inner spline hub 10d of the device 10 close to the second gear input gear 12 is fixedly connected to the driven inner spline hub end cover 10e of the brushless wire-controlled centrifugal ball arm joint device 10 by bolts, away from the second gear input gear 12 One end of the second-gear shaft connection plate 22P is fixedly connected; the second-gear brushless electromagnet 2WT is arranged between the brushless wire-controlled centrifugal ball arm engaging device 10 and the second-gear input gear 12; the brushless wire-controlled centrifugal ball arm engages The stop disc 10f of the device 10 and the brushless electromagnet 2WT of the second gear are fixedly installed on the transmission housing through a non-magnetic material; The magnetic end faces of the brushless electromagnet 2WT always maintain a certain air gap; when the second gear brushless electromagnet 2WT is in the state of no power, the friction drive of the wire-controlled drive disc 10g of the brushless wire-controlled centrifugal ball arm joint device 10 A certain air gap is maintained between the end surface 10ga and the outer disk 10qb of the magnetically permeable force transmission disk 10qb of the brushless wire-controlled centrifugal ball-arm joint device 10 under the action of the preload spring 10i of the brushless wire-controlled centrifugal ball-arm joint device 10 ; The second gear brushless electromagnet 2WT is in the energized state, the friction drive end surface 10ga of the wire-controlled drive disc 10g of the brushless wire-controlled centrifugal ball arm joint device 10 and the guide of the brushless wire-controlled centrifugal ball-arm joint device 10 One end surfaces of the magnetic force disc outer disc 10qb are joined together.

A brushless wire-controlled centrifugal ball arm engaging device 10 is provided between the input gear 1 and the output shaft 2Z, and the brushless wire-controlled centrifugal ball arm engaging device 10 is used as a third-speed power transmission engaging device. One end of the drive shaft 10Z of the engagement device 10 is fixedly connected to the input gear 1 through a spline, and the other end is connected to the front journal of the output shaft 2Z through a bearing; The end of the key hub 10d close to the input gear 1 is fixedly connected to the driven inner spline hub end cover 10e of the brushless wire-controlled centrifugal ball arm joint device 10 through bolts, and the end far away from the input gear 1 is fixedly connected to the output shaft connection plate 23P; A third gear brushless electromagnet 3WT is arranged between the brushless wire-controlled centrifugal ball arm joint device 10 and the input gear 1; It is fixedly installed on the transmission housing through a non-magnetic material; the magnetically conductive force transmission disk outer disk 10qb of the brushless wire-controlled centrifugal ball arm joint device 10 and the magnetic end surface of the third-speed brushless electromagnet 3WT always maintain a certain air gap ; The third-gear brushless electromagnet 3WT is in the state of no power, the friction drive end face 10ga of the wire-controlled drive disc 10g of the brushless wire-controlled centrifugal ball arm joint device 10 and the friction drive end face 10ga of the wire-controlled centrifugal ball-arm joint device 10 One end surface of the outer disk 10qb of the magnetically conductive force transmission disk maintains a certain air gap under the action of the preload spring 10i of the brushless wire-controlled centrifugal ball arm joint device 10; The frictional driving end face 10ga of the drive-by-wire drive plate 10g of the brushless drive-by-wire centrifugal ball arm joint device 10 is engaged with one end face of the magnetically conductive force transmission disc outer plate 10qb of the brushless wire-controlled centrifugal ball arm joint device 10 .

The first gear shaft 21Z is fixedly installed with a first gear driving gear 21 and the first gear shaft connection plate 21P, and the first gear driving gear 21 is in constant mesh with the first gear driven gear 2A; The gear shaft connection plate 22P, the second gear driving gear 22 is in constant mesh with the second gear driven gear 2B; the output shaft 2Z is fixedly connected with an output shaft connection plate 23P.

Both the first gear driven gear 2A and the second gear driven gear 2B are fixedly installed on the output shaft 2Z.

The working principle of the three-speed automatic transmission for electric vehicles with the brushless wire-controlled centrifugal ball arm joint device is further described below in conjunction with the embodiment:

During the first gear transmission, the electromagnetic coil of the first gear brushless electromagnet 1WT is energized, and the brushless wire-controlled centrifugal ball arm joint device 10 works as the first gear power transmission joint device. Power-off; after the electromagnetic coil of the first-grade brushless electromagnet 1WT is energized, the electromagnetic attraction generated by the first-grade brushless electromagnet 1WT passes through the magnetic conduction of the brushless wire-controlled centrifugal ball arm engaging device 10 as the first-grade power transmission engaging device. The power transmission plate 10q is transmitted to the wire-controlled driving disk 10g of the brushless wire-controlled centrifugal ball arm engaging device 10 as the first-gear power transmission engaging device, so that the brushless wire-controlled centrifugal ball-arm engaging device 10 as the first-gear power transmission engaging device The drive-by-wire drive plate 10g overcomes the elastic force of the pre-compressed spring 10i of the brushless wire-controlled centrifugal ball arm engaging device 10 as the first-gear power transmission engaging device and moves toward the first-gear brushless electromagnet 1WT, thereby making the first-gear power The friction drive end surface 10ga of the brushless wire-controlled centrifugal ball-arm joint device 10 of the drive-by-wire drive disc 10g and the magnetically conductive force transmission plate of the brushless wire-controlled centrifugal ball-arm joint device 10 as the first-speed power transmission joint device One end face of 10q is engaged, and under the action of the friction force generated by the engagement of the two, the centrifugal ball arm hollow wheel 10j of the brushless wire-controlled centrifugal ball arm joint device 10, which is used as a first-speed power transmission joint device, is driven to rotate to serve as a first-speed power The centrifugal ball arm hollow disc 10j of the brushless wire-controlled centrifugal ball-arm joint device 10 of the drive joint device drives the centrifugal ball arms 10l of the brushless wire-controlled centrifugal ball-arm joint device 10 as the first gear power transmission joint device to rotate, and at the same time , under the action of centrifugal force, each centrifugal ball arm 10l of the brushless wire-controlled centrifugal ball arm joint device 10 as the first-gear power transmission joint device winds around the brushless wire-controlled centrifugal ball-arm joint device 10 as the first-gear power transmission joint device The centrifugal ball arm pin 10k is opened outwards, so that one end of the centrifugal ball socket 10r provided with the brushless wire-controlled centrifugal ball arm engaging device 10 as the first gear power transmission engaging device drives the brushless brushless wire as the first gear power transmission engaging device. The centrifugal ball 10m of the wire-controlled centrifugal ball-arm joint device 10 moves outward in a circular motion along the smooth surface 10ca of the thrust pressure plate 10c of the brushless wire-controlled centrifugal ball-arm joint device 10 as a power transmission joint device 10, thereby making the The centrifugal ball arm 101 of the brushless wire control centrifugal ball arm joint device 10 of the first gear power transmission joint device and the centrifugal ball 10m of the brushless wire control centrifugal ball arm joint device 10 as the first gear power transmission joint device generate centrifugal force, and the centrifugal force is along the The component force in the central axis direction of the centrifugal ball arm hollow wheel disc 10j of the brushless wire control centrifugal ball arm joint device 10 as the first gear power transmission engagement device pushes the brushless wire control centrifugal ball arm engagement as the first gear power transmission engagement device The thrust pressure plate 10c of the device 10 produces an axial movement away from the centrifugal ball arm hollow disc 10j of the brushless wire-controlled centrifugal ball arm engagement device 10 as the first-speed power transmission engagement device, so that the first-speed power transmission engagement device The thrust pressure plate 10c of the brushless wire-controlled centrifugal ball arm joint device 10 will be used as the first gear power The steel sheets 10b with outer spline grooves of the brushless wire control centrifugal ball arm joint device 10 of the transmission joint device and the friction plates with inner spline grooves of the brushless wire control centrifugal ball arm joint device 10 as the first gear power transmission joint device 10a are pressed against each other, relying on the steel sheets 10b with external spline grooves of the brushless wire-controlled centrifugal ball arm engaging device 10 as the first-gear power transmission engaging device to engage with the brushless wire-controlled centrifugal ball arm as the first-gear power transmission engaging device The friction force between the friction plates 10a with internal spline grooves of the device 10 realizes the driven internal spline hub 10d of the brushless wire-controlled centrifugal ball arm joint device 10 as the first gear power transmission engagement device together with the driven inner spline hub 10d as the first gear power transmission engagement device. The drive shaft 10Z of the brushless wire-controlled centrifugal ball-arm joint device 10 of the device rotates synchronously, so that the drive shaft 10Z of the brushless wire-controlled centrifugal ball-arm joint device 10 and the first gear shaft 21Z rotate synchronously, Thereby realizing first gear transmission.

After the electromagnetic coils of the brushless electromagnets of the other gears are powered off, under the elastic force of the preload spring 10i of the brushless wire-controlled centrifugal ball arm joint device 10 as the power transmission joint device of the other gears, The wire-controlled driving disc 10g of the brushless wire-controlled centrifugal ball-arm engaging device 10 of the power transmission engaging device is engaged with the stop disc 10f of the brushless wire-controlled centrifugal ball-arm engaging device 10 serving as the rest of the power transmission engaging devices. The stop plate 10f of the brushless wire control centrifugal ball arm joint device 10 of each gear power transmission joint device is fixed on the housing through a non-magnetic material and is fixed, so it can be used as the brushless wire control of the other gear power transmission joint devices. The frictional force between the wire-controlled driving disc 10g of the centrifugal ball arm joint device 10 and the stop disc 10f of the brushless wire-controlled centrifugal ball arm joint device 10 as the rest of the power transmission joint devices is engaged, and the friction force between the two is used as the rest of the power transmission joint devices. The wire-controlled driving disc 10g of the brushless wire-controlled centrifugal ball-arm engaging device 10 of the high-speed power transmission engaging device together with the centrifugal ball-arm hollow wheel disc 10j of the brushless wire-controlled centrifugal ball-arm engaging device 10 of the rest of the power transmission engaging devices The rotation speed is zero, and under the torsion action of the centrifugal ball arm return spring 10p of the brushless wire-controlled centrifugal ball arm engaging device 10 as the power transmission engaging device of the other gears, the brushless The centrifugal ball arm 10l of the wire-controlled centrifugal ball-arm joint device 10 and the centrifugal ball 10m of the brushless wire-controlled centrifugal ball-arm joint device 10 as the rest of the gears power transmission joint device 10 are folded inward, so as to serve as the power transmission joint device of the remaining gears. The brushless drive-by-wire centrifugal ball arm joint 10 does not transmit power.

The first gear brushless electromagnet 1WT is fixed on the housing through a non-magnetic material, and the first gear brushless electromagnet 1WT is connected to the magnetically conductive force transmission plate of the brushless wire-controlled centrifugal ball arm joint device 10 as the first gear power transmission joint device. The 10q maintains a constant air gap throughout, so the aforementioned first-gear process allows for brushless drive-by-wire. At the same time, the electromagnetic force generated by the energization of the electromagnetic coil of the first gear brushless electromagnet 1WT passes through the magnetic conduction force transmission plate 10q and the wire control drive plate of the brushless wire-controlled centrifugal ball arm joint device 10 as the first gear power transmission joint device. 10g only controls the rotation of the centrifugal ball arm hollow disc 10j of the brushless wire-controlled centrifugal ball arm joint device 10 as the first gear power transmission joint device, so the power consumption of the first gear brushless electromagnet 1WT is small, which reduces the power consumption of the first gear. Operational energy consumption of the brushless drive-by-wire centrifugal ball arm joint 10 of the transmission joint.

The working principle of the other gear-by-wire transmissions is the same as that of the first gear.

The power transmission routes of each gear of the electric vehicle three-speed automatic transmission with the brushless wire-controlled centrifugal ball arm joint device of the embodiment of the utility model will be further described below in conjunction with FIG. 1 and FIG. 2 .

The transmission route of the first gear: the brushless wire-controlled centrifugal ball arm joint device 10 as the power transmission joint device of the first gear is energized and engaged, the torque of the motor is transmitted to the input gear 1 through the input shaft 1Z, and the input gear 1 transmits the torque to the first gear input Gear 11, the first gear input gear 11 transmits the torque to the brushless wire control centrifugal ball arm joint device 10 as the first gear power transmission joint device, and then through the brushless wire control centrifugal ball arm joint device as the first gear power transmission joint device 10 further transmits the torque to the first-gear shaft connection plate 21P, and then the power is transmitted to the output shaft 2Z by the meshing of the first-gear driving gear 21 and the first-gear driven gear 2A to realize the first-gear reduction transmission.

The second gear transmission route is: the brushless wire-controlled centrifugal ball arm joint device 10 as the second gear power transmission joint device is energized and engaged, the torque of the motor is transmitted to the input gear 1 through the input shaft 1Z, and the input gear 1 transmits the torque to the second gear input Gear 12, the second gear input gear 12 transmits the torque to the brushless wire control centrifugal ball arm joint device 10 as the second gear power transmission joint device, and then through the brushless wire control centrifugal ball arm joint device as the second gear power transmission joint device 10, the torque is further transmitted to the second gear shaft connection plate 22P, and then the power is transmitted to the output shaft 2Z by the engagement of the second gear driving gear 22 and the second gear driven gear 2B, so as to realize the second gear reduction transmission.

The third gear transmission route is: the brushless wire-controlled centrifugal ball arm joint device 10 as the third gear power transmission joint device is energized and engaged, the torque of the motor is transmitted to the input gear 1 through the input shaft 1Z, and the input gear 1 is used as the third gear power transmission joint. The brushless wire-controlled centrifugal ball arm joint device 10 of the device further transmits the torque to the output shaft 2Z to realize the third gear transmission.

The transmission route for reverse gear is: the brushless wire-controlled centrifugal ball arm joint device 10 as the first gear power transmission joint device is energized and engaged, the motor reverses, the torque of the motor is transmitted to the input gear 1 through the input shaft 1Z, and the input gear 1 transmits the torque To the first gear input gear 11, the first gear input gear 11 transmits the torque to the brushless wire control centrifugal ball arm joint device 10 as the first gear power transmission joint device, and then through the brushless wire control centrifugal ball arm joint device as the first gear power transmission joint device. The ball arm joint device 10 further transmits the torque to the connecting plate 21P of the first gear shaft, and then transmits the power to the output shaft 2Z through the meshing of the first gear driving gear 21 and the first gear driven gear 2A, so as to realize reverse gear reduction transmission.

Neutral gear: the brushless wire-controlled centrifugal ball arm joint device 10 as the power transmission joint device of each gear is in a power-off and non-working state, realizing neutral gear.

The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings, but the present utility model is not limited to the above-mentioned embodiments. Various changes are made.

Claims (4)

1. a kind of gear automatic speed variator of electric automobile three of the brushless line traffic control centrifugal globe arm engagement device of band, including input shaft (1Z), Output shaft (2Z), input gear (1), one grade of input gear (11), two grades of input gears (12), one grade of driving gear (21), two Shelves driving gear (22)；The input gear (1) is fixedly mounted on input shaft (1Z)；The input gear (1) is all along gear Often engaged with one grade of input gear (11), two grades of input gears (12) respectively laterally；It is characterized in that：

It also includes three brushless line traffic control centrifugal globe arm engagement devices (10), one grade of brushless electromagnet (1WT), two grades of brushless electromagnetism Iron (2WT), third gear is brushless electromagnet (3WT) totally three brushless electromagnet；

Each brushless line traffic control centrifugal globe arm engagement device (10) include thrust platen (10c), driven internal spline hub (10d), Drive-by-wire disk (10g), pre-compressed spring (10i), the hollow wheel disc of centrifugal globe arm (10j), centrifugal globe arm pin (10k), centrifugal globe arm (10l), centrifugal globe (10m), magnetic conduction force transmiting disk (10q), centrifugation ball-and-socket (10r), driving shaft (10Z)；The centrifugal globe arm is hollow Wheel disc (10j) is arranged on driving shaft (10Z) by bearing element support, the described hollow wheel disc of centrifugal globe arm (10j) one end Outer circumference surface is provided with the hollow wheel disc external splines groove (10ja) of centrifugal globe arm；The drive-by-wire disk (10g) passes through its internal spline Groove is sleeved on the hollow wheel disc external splines groove (10ja) of centrifugal globe arm, and it is hollow that the pre-compressed spring (10i) is arranged on centrifugal globe arm Between the end of wheel disc external splines groove (10ja) and the inner side end of drive-by-wire disk (10g)；The drive-by-wire disk (10g) sets There is friction-driven end face (10ga)；The hollow wheel disc of centrifugal globe arm (10j) other end is uniformly distributed circumferentially provided with multiple A centrifugal globe arm pin (10k) is fixedly mounted on centrifugal globe arm bearing, each centrifugal globe arm bearing；The centrifugal globe arm The one end of (10l) is sleeved on by its smooth bearing bore on the intermediate journal of centrifugal globe arm pin (10k), the centrifugal globe arm (10l) Can freely it be rotated around centrifugal globe arm pin (10k)；The other end of the centrifugal globe arm (10l) is provided with a centrifugation ball-and-socket (10r), institute State and a centrifugal globe (10m) is installed in each centrifugation ball-and-socket (10r), each centrifugal globe (10m) is in centrifugation ball-and-socket (10r) It is interior freely to roll；

The end face of the thrust platen (10c) is shiny surface (10ca)；Each centrifugal globe (10m) is resisted against thrust platen On the shiny surface (10ca) of (10c)；External splines groove, the thrust pressure are additionally provided with the outer circumference surface of the thrust platen (10c) The external splines groove of disk (10c) slides axially with both inner spline grooves of driven internal spline hub (10d) and engaged；

The magnetic conduction force transmiting disk (10q) is fixedly mounted on driving shaft (10Z) by hub (10qa) bearing bore in magnetic conduction power transmission disk center Axle journal on；The magnetic conduction force transmiting disk (10q) is provided with magnetic conduction force transmiting disk external disk (10qb)；

Between one grade of input gear (11) and one grade of driving gear (21) dress is engaged provided with a brushless line traffic control centrifugal globe arm (10) are put, this is brushless, and line traffic control centrifugal globe arm engagement device (10) is used as one grade of power transmission engagement device, the described brushless line traffic control One end of the driving shaft (10Z) of centrifugal globe arm engagement device (10) is connected with one end of one grade of input gear (11)；The described nothing Provided with one grade of brushless electromagnet (1WT) between brush line traffic control centrifugal globe arm engagement device (10) and one grade of input gear (11)；

Between two grades of input gears (12) and two grades of driving gears (22) dress is engaged provided with a brushless line traffic control centrifugal globe arm (10) are put, this is brushless, and line traffic control centrifugal globe arm engagement device (10) is used as two grades of power transmission engagement devices, the described brushless line traffic control One end of the driving shaft (10Z) of centrifugal globe arm engagement device (10) is connected with two grades of input gears (12)；The described brushless line traffic control Provided with two grades of brushless electromagnet (2WT) between centrifugal globe arm engagement device (10) and two grades of input gears (12)；

Provided with a brushless line traffic control centrifugal globe arm engagement device (10), the nothing between the input gear (1) and output shaft (2Z) Brush line traffic control centrifugal globe arm engagement device (10) is used as third gear power transmission engagement device, the described brushless line traffic control centrifugal globe arm engagement One end of the driving shaft (10Z) of device (10) is connected with one end of input shaft (1Z)；The described brushless line traffic control centrifugal globe arm engagement The brushless electromagnet of third gear (3WT) is provided between device (10) and input gear (1)；

One grade of brushless electromagnet (1WT), two grades of brushless electromagnet (2WT), third gear is brushless electromagnet (3WT) are by non-magnetic Material is fixedly mounted on case of transmission.

2. electric automobile three gear automatic speed variator as claimed in claim 1 with brushless line traffic control centrifugal globe arm engagement device, its It is characterised by：

The magnetic pole end face of one grade of brushless electromagnet (1WT) and the brushless line traffic control centrifugal globe arm as one grade of actuating unit The opposing end surface of the magnetic conduction force transmiting disk external disk (10qb) of engagement device (10) remains certain air-gap；Described one grade brushless Electromagnet (1WT) is in the state of no power, and the brushless line traffic control centrifugal globe arm as one grade of actuating unit, which is engaged, to be filled Put (10) drive-by-wire disk (10g) friction-driven end face (10ga) with as one grade of actuating unit brushless line traffic control from The end face of the magnetic conduction force transmiting disk external disk (10qb) of bulbus cordis arm engagement device (10) is being used as the brushless of one grade of actuating unit The elastic force effect of the pre-compressed spring (10i) of line traffic control centrifugal globe arm engagement device (10) is lower to keep certain air-gap；Described one grade Brushless electromagnet (1WT) is in the state of energization, and the brushless line traffic control centrifugal globe arm as one grade of actuating unit is engaged The friction-driven end face (10ga) of the drive-by-wire disk (10g) of device (10) and the brushless line traffic control as one grade of actuating unit The end face of the magnetic conduction force transmiting disk external disk (10qb) of centrifugal globe arm engagement device (10) is overcome as one grade of actuating unit The elastic force effect of the pre-compressed spring (10i) of brushless line traffic control centrifugal globe arm engagement device (10) is bonded together.

3. electric automobile three gear automatic speed variator as claimed in claim 1 with brushless line traffic control centrifugal globe arm engagement device, its It is characterised by：

The magnetic pole end face of two grades of brushless electromagnet (2WT) and the brushless line traffic control centrifugal globe arm as two grades of actuating units The opposing end surface of the magnetic conduction force transmiting disk external disk (10qb) of engagement device (10) remains certain air-gap；Described two grades brushless Electromagnet (2WT) is in the state of no power, and the brushless line traffic control centrifugal globe arm as two grades of actuating units, which is engaged, to be filled Put (10) drive-by-wire disk (10g) friction-driven end face (10ga) with as two grades of actuating units brushless line traffic control from The end face of the magnetic conduction force transmiting disk external disk (10qb) of bulbus cordis arm engagement device (10) is being used as the brushless of two grades of actuating units The elastic force effect of the pre-compressed spring (10i) of line traffic control centrifugal globe arm engagement device (10) is lower to keep certain air-gap；Described two grades Brushless electromagnet (2WT) is in the state of energization, and the brushless line traffic control centrifugal globe arm as two grades of actuating units is engaged The friction-driven end face (10ga) of the drive-by-wire disk (10g) of device (10) and the brushless line traffic control as two grades of actuating units The end face of the magnetic conduction force transmiting disk external disk (10qb) of centrifugal globe arm engagement device (10) is overcome as two grades of actuating units The elastic force effect of the pre-compressed spring (10i) of brushless line traffic control centrifugal globe arm engagement device (10) is bonded together.

4. electric automobile three gear automatic speed variator as claimed in claim 1 with brushless line traffic control centrifugal globe arm engagement device, its It is characterised by：

The magnetic pole end face of the brushless electromagnet of third gear (3WT) and the brushless line traffic control centrifugal globe arm as third gear actuating unit The opposing end surface of the magnetic conduction force transmiting disk external disk (10qb) of engagement device (10) remains certain air-gap；The third gear is brushless Electromagnet (3WT) is in the state of no power, and the brushless line traffic control centrifugal globe arm as third gear actuating unit, which is engaged, to be filled Put (10) drive-by-wire disk (10g) friction-driven end face (10ga) with as third gear actuating unit brushless line traffic control from The end face of the magnetic conduction force transmiting disk external disk (10qb) of bulbus cordis arm engagement device (10) is being used as the brushless of third gear actuating unit The elastic force effect of the pre-compressed spring (10i) of line traffic control centrifugal globe arm engagement device (10) is lower to keep certain air-gap；The third gear Brushless electromagnet (3WT) is in the state of energization, and the brushless line traffic control centrifugal globe arm as third gear actuating unit is engaged The friction-driven end face (10ga) of the drive-by-wire disk (10g) of device (10) and the brushless line traffic control as third gear actuating unit The end face of the magnetic conduction force transmiting disk external disk (10qb) of centrifugal globe arm engagement device (10) is overcome as third gear actuating unit The elastic force effect of the pre-compressed spring (10i) of brushless line traffic control centrifugal globe arm engagement device (10) is bonded together.