CN204921864U - Electric automobile automatic gearbox is kept off to electronic stylus pin coupling device formula two - Google Patents

Abstract

The utility model discloses an electric finger joint device-type automatic transmission for two-speed electric vehicles. The input gear is installed on the input shaft of the transmission, and the input gear is constantly meshed with the input gear of the first gear; the input gear and the input gear of the first gear are respectively fixedly connected with the output disk of the electric finger joint device of the second gear and the first gear; by controlling the first gear and the first gear The engagement and disengagement of the second gear electric finger pin engagement device realizes the shift control of the transmission. When the electric finger valve of the electric finger joint device is not energized, the output disk is in a separated state under the action of the return spring; when the electric finger valve is energized, the electric finger moves toward the output disk against the elastic force under the action of electromagnetic force , slide into the arc-shaped ring groove in the rotating state, push the output disk to rotate synchronously, and the engaging device engages. The utility model has the advantages of compact structure, power shifting, no mechanical or hydraulic shifting parts and the like.

Description

Electric finger joint type two-speed automatic transmission for electric vehicles

technical field

The utility model belongs to the technical field of electric vehicle transmission, and relates to an automatic transmission for electric vehicles, more precisely an electric finger joint device-type two-speed automatic transmission for electric vehicles.

Background technique

Automatic transmissions are widely used in various vehicles such as automobiles, electric vehicles, and construction machinery. Existing automatic transmissions mainly include hydromechanical automatic transmission (AT), metal belt continuously variable automatic transmission (CVT), mechanical automatic transmission (AMT), and double clutch automatic transmission (DCT).

The above-mentioned four types of automatic transmissions all adopt electronically controlled hydraulic servo devices to realize the control of the shifting process, which has complex structure, high cost and increased control difficulty and complexity. In particular, the executive mechanism of DCT includes: oil supply mechanism composed of hydraulic pump, hydraulic valve and accumulator, shift actuator driven by hydraulic pressure or electric motor, and engagement device operating mechanism driven by hydraulic pressure or electric motor. These hydraulic control mechanisms make the overall structure of the transmission complex, the cost is high, and the control difficulty and complexity are increased.

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 electric finger joint device-type two-speed automatic transmission for electric vehicles that can realize power shifting and has high reliability and low cost. .

The technical scheme of the utility model is as follows:

An electric finger-pin joint device-type two-speed automatic transmission for electric vehicles, comprising a transmission input shaft, an input gear, a first-speed input gear, a first-speed driving gear, and a first-speed driven gear; the input gear is fixedly mounted on the transmission input shaft ; The input gear is in constant mesh with the first gear input gear.

It is characterized in that it also includes a first gear electric finger engagement device and a second gear electric finger engagement device.

The first-gear electric finger engaging device includes an input disc of the first-gear electric finger engaging device, a first electric finger valve of the first-gear electric finger engaging device, and a second electric finger valve of the first-gear electric finger engaging device , the output disk of the first-speed electric finger joint device, the inner convex teeth of the first-speed electric finger joint device, the buffer plate of the first-speed electric finger joint device, the outer convex teeth of the first-speed electric finger joint device, and the first-speed electric finger joint device. The arc-shaped ring groove of the finger joint, the rubber spring element of the first-speed electric finger joint, and the transmission shaft of the first-speed electric finger joint.

The second-gear electric finger joint device includes an input plate of the second-speed electric finger joint device, a first electric finger valve of the second-speed electric finger joint device, and a second electric finger valve of the second-speed electric finger joint device , the output disc of the second-speed electric finger joint device, the inner convex teeth of the second-speed electric finger joint device, the buffer plate of the second-speed electric finger joint device, the outer convex teeth of the second-speed electric finger joint device, and the second-speed electric finger joint device. The arc-shaped ring groove of the finger joint, the rubber spring element of the second-speed electric finger joint, and the transmission shaft of the second-speed electric finger joint.

One end surface of the output disc of the first-gear electric finger engagement device is fixedly connected to one end surface of the first-gear input gear; the first-gear input gear is rollingly mounted on the transmission shaft of the first-gear electric finger engagement device through a bearing.

The first electric finger valve of the first gear electric finger engagement device and the second electric finger valve of the first gear electric finger engagement device are symmetrically installed on the input disk of the first gear electric finger engagement device; The first electric finger valve of the finger engaging device includes the first electromagnetic coil of the first gear electric finger engaging device and the first electric finger of the first gear electric finger engaging device; the first electric finger engaging device of the first gear An electric finger pin is fixedly installed on one end of the iron core of the first electric finger pin engagement device of the first gear electric finger engagement device; The second electromagnetic coil of the device and the second electric finger of the first gear electric finger engagement device; the second electric finger of the first gear electric finger engagement device is fixedly installed on the second electric finger engagement device of the first gear electric finger engagement device One end of the core of the pin valve.

An L-shaped annular cavity is provided on the end face of the output disk of the first-gear electric finger engagement device far away from the first-gear input gear, and a buffer disc of the first-gear electric finger engagement device and a plurality of first-gear electric fingers are installed in the cavity. The rubber spring element of the engagement device; the outer convex teeth of the first gear electric finger engagement device on the outer cylindrical surface of the buffer disc of the first gear electric finger engagement device and the first gear electric finger engagement device in the L-shaped annular cavity One rubber spring element of the first-gear electric finger engagement device is respectively installed between the inner convex teeth; one pressure-bearing side of each rubber spring element of the first-gear electric finger engagement device abuts against the first-gear electric finger engagement device The side surface of the inner convex tooth and the other pressure-bearing side are against the outer convex tooth side of the first-gear electric finger pin engagement device; There are two arc-shaped annular grooves of the first-gear electric finger engagement device symmetrically distributed in the center; the width of each arc-shaped annular groove of the first-gear electric finger engagement device is the same as the first electric The diameter of the finger and the diameter of the second electric finger of the first-gear electric finger engagement device are equal; the radius of the center line of the arc-shaped ring groove of each first-gear electric finger engagement device engages with the first-gear electric finger The distance from the first electric finger axis of the device to the axis of the input disc of the first gear electric finger engagement device, the second electric finger axis of the first gear electric finger engagement device to the input disc axis of the first gear electric finger engagement device The distances between the axes are equal; the central angle corresponding to the arc-shaped ring groove of each first-gear electric finger engagement device is 90-180°; the two arc-shaped ring grooves of each first-gear electric finger engagement device The end depth is equal to the maximum extension length of the first electric finger of the first-speed electric finger engagement device and the maximum extension length of the second electric finger of the first-speed electric finger engagement device, and each first-speed electric finger engagement device The middle depth of the arc-shaped ring groove is zero, and the depth of the rest of the arc-shaped ring groove of each first gear electric finger engagement device gradually and smoothly transitions.

There is always a certain gap between the end surface of the buffer disc of the first-gear electric finger engagement device away from the first-gear input gear and the end surface of the first-gear electric finger engagement device's input disc close to the first-gear input gear.

One end surface of the output disk of the second gear electric finger engagement device is fixedly connected to one end surface of the input gear.

The first electric finger valve of the second gear electric finger engagement device and the second electric finger valve of the second gear electric finger engagement device are symmetrically installed on the input disc of the second gear electric finger engagement device; The first electric finger valve of the electric finger engagement device includes the first electromagnetic coil of the second-speed electric finger engagement device and the first electric finger of the second-speed electric finger engagement device; The first electric finger pin is fixedly installed on one end of the iron core of the first electric finger valve of the second gear electric finger engagement device; the second electric finger valve of the second gear electric finger engagement device includes a second gear electric finger pin The second electromagnetic coil of the engagement device and the second electric finger of the second gear electric finger engagement device; the second electric finger of the second gear electric finger engagement device is fixedly installed on the second gear of the second gear electric finger engagement device. One end of the iron core of the electric pilot valve.

An L-shaped annular cavity is provided on the end face of the output disc of the second-gear electric finger engagement device far away from the input gear, and a buffer disc of the second-gear electric finger engagement device and a plurality of second-gear electric finger engagement devices are installed in the cavity. The rubber spring element of the device; the outer convex teeth of the second gear electric finger pin engagement device on the outer cylindrical surface of the buffer disc of the second gear electric finger pin engagement device and the second gear electric finger pin engagement device in the L-shaped annular cavity A rubber spring element of the second-speed electric finger engagement device is respectively installed between the inner convex teeth; one pressure-bearing side of each rubber spring element of the second-speed electric finger engagement device abuts against the inner surface of the second-speed electric finger engagement device. The side surface of the convex tooth, and the other pressure-bearing side is against the side surface of the outer convex tooth of the second gear electric finger pin engagement device; the end surface of the buffer plate of the second gear electric finger pin engagement device is far away from the input gear. There are also two The arc-shaped annular groove of the second-speed electric finger engagement device distributed symmetrically in the center; the width of the arc-shaped annular groove of each second-speed electric finger engagement device is the same as the The diameter and the diameter of the second electric finger of the second gear electric finger engagement device are all equal; the center line radius of the arc-shaped ring groove of each second gear electric finger engagement device is the same as the first The distance from the axis of the first electric finger pin to the axis of the input disk of the second-speed electric finger joint device, the distance from the second electric finger axis of the second-speed electric finger joint device to the axis of the input disc shaft of the second-speed electric finger joint device are equal; the central angle corresponding to the arc-shaped ring groove of each second-speed electric finger joint device is 60-150°; the depth of one end of the arc-shaped ring groove of each second-speed electric finger joint device is the same as the second The maximum protruding length of the first electric finger of the second-speed electric finger joint device and the maximum protruding length of the second electric finger joint of the second-speed electric finger joint device are equal, and the arc ring of each second-speed electric finger joint device The depth of the other end of the groove is zero, and the depth of the middle part of the arc-shaped annular groove of each second-gear electric finger engagement device gradually and smoothly transitions.

There is always a certain gap between the end surface of the buffer disk of the second-speed electric finger joint device away from the input gear and the end surface of the input disk of the second-speed electric finger joint device close to the input gear.

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

(1) The electric finger joint device type two-speed automatic transmission for electric vehicles of the present utility model cancels the main joint device, synchronizer and shift fork mechanism of the traditional transmission, and realizes gear shifting by directly controlling the coil current of the joint device, The structure is simplified, the cost is reduced, and the failure rate is also reduced;

(2) The electric finger joint device type two-speed electric vehicle automatic transmission of the utility model is constantly meshed between the transmission gears, and there is no need to cut off the power during the shifting process, which reduces the shifting impact and improves the acceleration performance and driving comfort of the car sex;

(3) The electric finger joint device type two-speed automatic transmission for electric vehicles of the present invention, the electric finger joint device transmits the input torque of the input disc to the output disc through the thrust action of the electric finger pin on the output disc, and is small in size and heavy in weight. Lightweight, large transmission torque, high speed and high transmission efficiency.

Description of drawings

Fig. 1 is a schematic structural view of an electric finger joint device-type two-speed automatic transmission for an electric vehicle according to an embodiment of the present invention.

Fig. 2 is a perspective view of the output disc of the first gear electric finger engagement device according to the embodiment of the present invention.

Fig. 3 is a perspective view of the buffer plate of the first gear electric finger engagement device according to the embodiment of the present invention.

Fig. 4 is a perspective view of the rubber spring element of the first gear electric finger engagement device according to the embodiment of the present invention.

Fig. 5 is a perspective view of the output disc of the second gear electric finger engagement device according to the embodiment of the present invention.

Fig. 6 is a perspective view of the buffer plate of the second-speed electric finger-pin engagement device according to the embodiment of the present invention.

Fig. 7 is a perspective view of the rubber spring element of the second gear electric finger engagement device according to the embodiment of the present invention.

In the figure: 10. The first-speed electric finger engagement device 10a. The input plate 10b of the first-speed electric finger engagement device. The first electric finger valve 10c of the first-speed electric finger engagement device. First electromagnetic coil 10d. First electric finger 10e of the first-speed electric finger engagement device. Second electric finger valve 10f of the first-speed electric finger engagement device. Second electromagnetic coil 10g of the first-speed electric finger engagement device. The second electric finger 10h of the first-speed electric finger clutch. The output disk 10i of the first-speed electric finger clutch. The inner convex tooth 10j of the first-speed electric finger clutch. The buffer of the first-speed electric finger clutch Disk 10k. Outer convex teeth of first gear electric finger joint 10m. Arc-shaped ring groove of first gear electric finger joint 10n. Rubber spring element of first gear electric finger joint 10p. First gear electric finger joint The transmission shaft 20. The second gear electric finger joint device 20a. The input disk of the second gear electric finger pin joint device 20b. The first electric finger pin valve of the second gear electric finger joint device 20c. The second gear electric finger pin joint device First electromagnetic coil 20d. First electric finger 20e of the second-speed electric finger engagement device. Second electric finger valve 20f of the second-speed electric finger engagement device. Second electromagnetic coil 20g of the second-speed electric finger engagement device. .Second electric finger 20h of the second-speed electric finger clutch. Output plate 20i of the second-speed electric finger clutch. Inner convex teeth 20j of the second-speed electric finger clutch. Buffer of the second-speed electric finger clutch. Disk 20k. Outer convex teeth of the second-speed electric finger joint 20m. Arc-shaped ring groove of the second-speed electric finger joint 20n. Rubber spring element of the second-speed electric finger joint 20p. Second-speed electric finger joint Transmission shaft 3. transmission housing 31. transmission input shaft 4. input gear 5. first gear input gear 6. first gear driving gear 7. first gear driven gear.

Detailed ways

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, a two-speed automatic transmission for electric vehicles with an electric finger joint device of the present invention includes a transmission housing 3, a transmission input shaft 31, an input gear 4, a first-speed input gear 5, and a first-speed driving gear 6. The first gear driven gear 7, the first gear electric finger joint device 10 and the second gear electric finger joint device 20; the input gear 4 is fixedly installed on the transmission input shaft 31; the input gear 4 is in constant mesh with the first gear input gear 5 The first gear driving gear 6 is fixedly installed on the transmission shaft 10p of the first gear electric finger joint device; the first gear driving gear 6 is in constant mesh with the first gear driven gear 7; the first gear driven gear 7 is fixedly installed on the second gear electric finger pin engagement device; The pin engages the drive shaft 20p of the device.

The first-gear electric finger engagement device 10 includes an input disc 10a of the first-gear electric finger engagement device, a first electric finger valve 10b of the first-gear electric finger engagement device, and a second electric finger engagement device of the first-gear electric finger engagement device Valve 10e, the output plate 10h of the first-speed electric finger joint device, the inner convex teeth 10i of the first-speed electric finger joint device, the buffer disc 10j of the first-speed electric finger joint device, and the outer convex teeth of the first-speed electric finger joint device. Teeth 10k, arc-shaped ring groove 10m of the first-gear electric finger engagement device, rubber spring element 10n of the first-gear electric finger engagement device, transmission shaft 10p of the first-gear electric finger engagement device.

The second gear electric finger engagement device 20 includes an input plate 20a of the second gear electric finger engagement device, a first electric finger valve 20b of the second gear electric finger engagement device, and a second electric finger engagement device of the second gear electric finger engagement device Valve 20e, the output plate 20h of the second-speed electric finger joint device, the inner convex teeth 20i of the second-speed electric finger joint device, the buffer plate 20j of the second-speed electric finger joint device, and the outer convex teeth of the second-speed electric finger joint device. Teeth 20k, arc-shaped ring groove 20m of the second gear electric finger joint device, rubber spring element 20n of the second gear electric finger joint device, transmission shaft 20p of the second gear electric finger joint device.

One end surface of the output disc 10h of the first-gear electric finger engagement device is fixedly connected to one end surface of the first-gear input gear 5 by bolts; the first-gear input gear 5 is rolled and mounted on the transmission shaft 10p of the first-gear electric finger engagement device through bearings .

As shown in Figures 2 to 4, the first electric finger valve 10b of the first-speed electric finger engagement device and the second electric finger valve 10b of the first-speed electric finger engagement device are symmetrically installed on the input disk 10a of the first-speed electric finger engagement device. The finger valve 10e; the first electric finger valve 10b of the first gear electric finger engagement device includes the first electromagnetic coil 10c of the first gear electric finger engagement device and the first electric finger 10d of the first gear electric finger engagement device; The first electric finger 10d of the first gear electric finger engagement device is fixedly installed on one end of the iron core of the first electric finger pin valve 10b of the first gear electric finger engagement device; the second electric finger of the first gear electric finger engagement device The pin valve 10e includes a second electromagnetic coil 10f of the first gear electric finger engagement device and a second electric finger 10g of the first gear electric finger engagement device; the second electric finger 10g of the first gear electric finger engagement device is fixedly installed on One end of the iron core of the second electric finger valve 10e of the first gear electric finger engagement device.

The output plate 10h of the first-gear electric finger engagement device is provided with an L-shaped annular cavity on the end face away from the first-gear input gear 5, and the buffer disc 10j of the first-gear electric finger engagement device and a plurality of first-gear electric finger engagement devices are installed in the cavity. The rubber spring element 10n of the pin engagement device; the outer convex teeth 10k of the first gear electric finger pin engagement device on the outer cylindrical surface of the buffer disc 10j of the first gear electric finger pin engagement device and the first gear electric finger pin in the L-shaped annular cavity A rubber spring element 10n of the first-gear electric finger engagement device is respectively installed between the inner convex teeth 10i of the engagement device; one pressure-bearing side of each rubber spring element 10n of the first-gear electric finger engagement device abuts against the first-gear electric finger engagement device. The tooth side of the inner convex tooth 10i of the finger engagement device, and the other pressure-bearing side against the outer convex tooth 10k tooth side of the first-gear electric finger engagement device; the buffer plate 10j of the first-gear electric finger engagement device is far away from the first-gear input The end face of the gear 5 is also provided with two arc-shaped ring grooves 10m of the center-symmetrically distributed first gear electric finger pin engagement device; The diameter of the first electric finger 10d of the pin engaging device and the diameter of the second electric finger 10g of the first-speed electric finger engaging device are equal; the center line of the arc-shaped ring groove 10m of each first-speed electric finger engaging device The distance between the radius and the axis of the first electric finger 10d of the first-gear electric finger engagement device to the axis of the input disc 10a of the first-gear electric finger engagement device, and the distance from the axis of the second electric finger 10g of the first-gear electric finger engagement device to The distances between the axes of the input disk shaft 10a of the first-gear electric finger engagement device are equal; the central angle corresponding to the arc-shaped ring groove 10m of each first-gear electric finger engagement device is 150°; each first-gear electric finger engagement device The depth of both ends of the arc-shaped ring groove 10m is equal to the maximum extension length of the first electric finger 10d of the first-speed electric finger engagement device, and the maximum extension length of the second electric finger 10g of the first-speed electric finger engagement device , the middle depth of the arc-shaped ring groove 10m of each first-gear electric finger engagement device is zero, and the depth of the rest of the arc-shaped ring groove 10m of each first-gear electric finger engagement device gradually transitions smoothly.

There is always a certain gap between the end surface of the buffer disk 10j of the first-gear electric finger engagement device away from the first-gear input gear 5 and the end surface of the first-gear electric finger engagement device's input disk 10a close to the first-gear input gear 5 .

One end surface of the output disc 20h of the second-speed electric finger engagement device is fixedly connected to one end surface of the input gear 4 by bolts.

As shown in Figures 5 to 7, the first electric finger valve 20b of the second-speed electric finger engagement device and the second valve 20b of the second-speed electric finger engagement device are symmetrically installed on the input disc 20a of the second-speed electric finger engagement device. The electric finger valve 20e; the first electric finger valve 20b of the second-speed electric finger engagement device includes the first electromagnetic coil 20c of the second-speed electric finger engagement device and the first electric finger pin 20d of the second-speed electric finger engagement device The first electric finger 20d of the second gear electric finger joint device is fixedly installed on one end of the iron core of the first electric finger pin valve 20b of the second gear electric finger joint device; The finger valve 20e includes the second electromagnetic coil 20f of the second gear electric finger engagement device and the second electric finger 20g of the second gear electric finger engagement device; the second electric finger pin 20g of the second gear electric finger engagement device is fixedly installed At one end of the iron core of the second electric finger pin valve 20e of the second gear electric finger engagement device.

The output disc 20h of the second-gear electric finger engagement device is provided with an L-shaped annular cavity on the end face away from the input gear 4, and the buffer disc 20j of the second-gear electric finger engagement device and a plurality of second-gear electric finger pins are installed in the cavity. The rubber spring element 20n of the engagement device; the outer convex teeth 20k of the second gear electric finger pin engagement device on the outer cylindrical surface of the buffer disc 20j of the second gear electric finger pin engagement device engage with the second gear electric finger pin in the L-shaped annular cavity A rubber spring element 20n of the second-gear electric finger engagement device is respectively installed between the inner convex teeth 20i of the device; one pressure-bearing side of each rubber spring element 20n of the second-gear electric finger engagement device abuts against the second-gear electric finger The tooth side of the inner convex tooth 20i of the pin engagement device, and the other pressure-bearing side abuts against the tooth flank of the outer convex tooth 20k of the second-speed electric finger engagement device; the buffer plate 20j of the second-speed electric finger engagement device is far away from the There are also two center-symmetrically distributed arc-shaped ring grooves of 20m for the second-gear electric finger-pin engagement device on the end face; The diameter of the first electric finger pin 20d and the diameter of the second electric finger pin 20g of the second gear electric finger engagement device are equal; The distance from the axis of the first electric finger 20d of the second-gear electric finger engagement device to the axis of the input disk 20a of the second-gear electric finger engagement device, and the distance from the axis of the second electric finger 20g of the second-gear electric finger engagement device to the second-gear electric The distances between the axes of the input disc shaft 20a of the finger joint device are equal; the central angle corresponding to the arc ring groove 20m of each second-gear electric finger joint device is 90°; the arc shape of each second-speed electric finger joint device The depth of one end of the ring groove 20m is equal to the maximum extension length of the first electric finger 20d of the second gear electric finger engagement device, and the maximum extension length of the second electric finger 20g of the second gear electric finger engagement device. The depth of the other end of the arc-shaped ring groove 20m of the gear electric finger engagement device is zero, and the depth of the middle part of the arc-shaped ring groove 20m of each second-gear electric finger engagement device gradually transitions smoothly.

There is always a certain gap between the end surface of the buffer disk 20j of the second-speed electric finger joint device away from the input gear 4 and the end surface of the input disk 20a of the second-speed electric finger joint device close to the input gear 4 .

The working principle of the electric finger joint device type two-speed electric vehicle automatic transmission is further described below in conjunction with the embodiments:

An electric slip ring is fixedly installed on the outer cylindrical surface of the input disk 10a of the first-gear electric finger engagement device, and the first electromagnetic coil 10c and the first-gear electric finger engagement device of the first-gear electric finger engagement device are controlled by the electric slip ring and the external brush. The energization and de-energization of the second electromagnetic coil 10f of the pin engagement device; similarly, an electric slip ring is fixedly installed on the outer cylindrical surface of the input disk 20a of the second gear electric finger pin engagement device, and the two coils are controlled by the electric slip ring and the external brush. The energization and de-energization of the first electromagnetic coil 20c of the first gear electric finger engagement device and the second electromagnetic coil 20f of the second gear electric finger engagement device.

When first-gear transmission, the first electromagnetic coil 10c of the first-gear electric finger engagement device and the second electromagnetic coil 10f of the first-gear electric finger engagement device are energized, and the first electromagnetic coil 10c of the first-gear electric finger engagement device and the first-gear electric finger engagement device are energized. The magnetic field force generated by the second electromagnetic coil 10f of the electric finger engagement device makes the first electric finger 10d of the first-speed electric finger engagement device and the second electric finger 10g of the first-speed electric finger engagement device overcome the force of the return spring. The elastic force moves to the direction of the output plate 10h of the first-speed electric finger engagement device, and the first electric finger 10d of the first-speed electric finger engagement device and the second electric finger 10g of the first-speed electric finger engagement device are rotating. state slides into one end of the arc-shaped ring groove 10m of the first-gear electric finger engagement device, thereby driving the buffer plate 10j of the first-gear electric finger engagement device to rotate synchronously, and at the same time due to the outer convex teeth 10k of the first-gear electric finger engagement device The tooth flank abuts against one pressure-bearing side of the rubber spring element 10n of the first-gear electric finger engagement device, and the other pressure-bearing side of the rubber spring element 10n of the first-gear electric finger engagement device abuts against the first-gear electric finger engagement device. On the tooth flanks of the inner convex teeth 10i of the pin engaging device, therefore, the buffer plate 10j of the first-speed electric finger engaging device rotates synchronously with the output disc 10h of the first-speed electric finger engaging device, so that the first-speed electric finger engaging device The input disc 10a of the first gear is synchronously driven with the output disc 10h of the first gear electric finger engagement device.

During the second gear transmission, the first electromagnetic coil 20c of the second gear electric finger engagement device and the second electromagnetic coil 20f of the second gear electric finger engagement device are energized, and the first electromagnetic coil 20c of the second gear electric finger engagement device and the second gear engagement device are energized. The magnetic field force generated by the second electromagnetic coil 20f of the electric finger engagement device makes the first electric finger 20d of the second-speed electric finger engagement device and the second electric finger 20g of the second-speed electric finger engagement device overcome the force of the return spring. The elastic force moves toward the output disk 20h of the second-speed electric finger engagement device, and the first electric finger 20d of the second-speed electric finger engagement device and the second electric finger 20g of the second-speed electric finger engagement device are rotating. state slides into one end of the arc-shaped ring groove 20m of the second-gear electric finger pin engagement device, thereby driving the buffer disc 20j of the second-gear electric finger pin engagement device to rotate synchronously, and at the same time due to the outer convex teeth 20k of the second-gear electric finger pin engagement device The tooth flank abuts against one pressure-bearing side of the rubber spring element 20n of the second-gear electric finger engagement device, and the other pressure-bearing side of the rubber spring element 20n of the second-gear electric finger engagement device abuts against the second-gear electric finger engagement device. Therefore, the buffer disk 20j of the second-speed electric finger-pin engagement device rotates synchronously with the output disk 20h of the second-speed electric finger-pin engagement device, so that the second-speed electric finger-pin engagement device The input disk 20a of the second gear is synchronously driven with the output disk 20h of the second gear electric finger engagement device.

The transmission route of the first gear is as follows: the electric finger joint device 10 of the first gear is energized and engaged, the electric finger joint device 20 of the second gear is disconnected when the power is cut off, and the torque of the power device is transmitted to the input gear 4 through the transmission input shaft 31, and the input gear 4 will The torque is further transmitted to the first-gear input gear 5, and then through the engaged first-gear electric finger pin engagement device 10, the power is transmitted to the second-gear electric finger pin engagement device through the engagement of the first-gear driving gear 6 and the first-gear driven gear 7. The shaft 20p outputs power through the transmission shaft 20p of the second gear electric finger joint device to realize the first gear transmission.

The transmission route of the second gear is as follows: the electric finger joint device 20 of the second gear is energized and engaged, the electric finger joint device 10 of the first gear is deenergized and separated, the torque of the power device is transmitted to the input gear 4 through the transmission input shaft 31, and the input gear 4 passes through The engaged second-gear electric finger pin engagement device 20 transmits power to the transmission shaft 20p of the second-gear electric finger pin engagement device, and the power is output through the transmission shaft 20p of the second-gear electric finger pin engagement device to realize second-gear transmission. There is no gear transmission in the first gear transmission route, so the second gear is a direct gear again.

The transmission route of the reverse gear is as follows: the electric finger joint device 10 of the first gear is energized and engaged, the electric finger joint device 20 of the second gear is de-energized and separated, the power device is reversed, and the torque is transmitted to the input gear 4 through the transmission input shaft 31, and the input gear 4. The torque is further transmitted to the first-speed input gear 5, and then through the first-speed electric finger engagement device 10, the power is transmitted to the second-speed electric finger engagement by the meshing of the first-speed driving gear 6 and the first-speed driven gear 7 The drive shaft 20p of the device outputs power outwards through the drive shaft 20p of the second gear electric finger joint device, so as to realize reverse gear transmission.

Neutral gear: the first electromagnetic coil 10c of the first gear electric finger engagement device, the second electromagnetic coil 10f of the first gear electric finger engagement device, the first electromagnetic coil 20c of the second gear electric finger engagement device, the second gear electric finger engagement device The second electromagnetic coils 20f of the device are all in a power-off 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 (1)

1. electronic stylus pin bonding apparatus formula two keeps off an electric car automatic speed transmission, comprises transmission input shaft (31), input gear (4), gear input gear (5), gear driving gear (6), gear driven gear (7); Described input gear (4) is fixedly mounted on transmission input shaft (31); Described input gear (4) and one keeps off input gear (5) and often engages; It is characterized in that:

It also comprises a gear electronic stylus pin bonding apparatus (10) and the electronic stylus pin bonding apparatus (20) of two gears;

The electronic stylus pin bonding apparatus (10) of a described gear comprises the input disc (10a) of the electronic stylus pin bonding apparatus of a gear, first electronic stylus pin valve (10b) of the electronic stylus pin bonding apparatus of one gear, second electronic stylus pin valve (10e) of the electronic stylus pin bonding apparatus of one gear, the output disc (10h) of the electronic stylus pin bonding apparatus of one gear, the interior double wedge (10i) of the electronic stylus pin bonding apparatus of one gear, the buffer disc (10j) of the electronic stylus pin bonding apparatus of one gear, the outer double wedge (10k) of the electronic stylus pin bonding apparatus of one gear, the arc-shaped ring groove (10m) of the electronic stylus pin bonding apparatus of one gear, the rubber spring element (10n) of the electronic stylus pin bonding apparatus of one gear, the transmission shaft (10p) of the electronic stylus pin bonding apparatus of one gear,

The electronic stylus pin bonding apparatus (20) of described two gear comprises the input disc (20a) of the electronic stylus pin bonding apparatus of two gears, first electronic stylus pin valve (20b) of the electronic stylus pin bonding apparatus of two gears, second electronic stylus pin valve (20e) of the electronic stylus pin bonding apparatus of two gears, the output disc (20h) of the electronic stylus pin bonding apparatus of two gears, the interior double wedge (20i) of the electronic stylus pin bonding apparatus of two gears, the buffer disc (20j) of the electronic stylus pin bonding apparatus of two gears, the outer double wedge (20k) of the electronic stylus pin bonding apparatus of two gears, the arc-shaped ring groove (20m) of the electronic stylus pin bonding apparatus of two gears, the rubber spring element (20n) of the electronic stylus pin bonding apparatus of two gears, the transmission shaft (20p) of the electronic stylus pin bonding apparatus of two gears,

One end face of the output disc (10h) of the electronic stylus pin bonding apparatus of a described gear is fixedly attached to an end face of a gear input gear (5); Described gear input gear (5) is arranged on by bearing element on the transmission shaft (10p) of the electronic stylus pin bonding apparatus of a gear;

The input disc (10a) of the electronic stylus pin bonding apparatus of a described gear is symmetrically installed with the first electronic stylus pin valve (10b) of a gear electronic stylus pin bonding apparatus and the second electronic stylus pin valve (10e) of the electronic stylus pin bonding apparatus of a gear; First electronic stylus pin valve (10b) of the electronic stylus pin bonding apparatus of a described gear comprises first electromagnetic coil (10c) of a gear electronic stylus pin bonding apparatus and the first electronic stylus pin (10d) of the electronic stylus pin bonding apparatus of a gear; First electronic stylus pin (10d) of the electronic stylus pin bonding apparatus of a described gear is fixedly mounted on one end of the iron core of the first electronic stylus pin valve (10b) of a gear electronic stylus pin bonding apparatus; Second electronic stylus pin valve (10e) of the electronic stylus pin bonding apparatus of a described gear comprises second electromagnetic coil (10f) of a gear electronic stylus pin bonding apparatus and the second electronic stylus pin (10g) of the electronic stylus pin bonding apparatus of a gear; Second electronic stylus pin (10g) of the electronic stylus pin bonding apparatus of a described gear is fixedly mounted on one end of the iron core of the second electronic stylus pin valve (10e) of a gear electronic stylus pin bonding apparatus;

The output disc (10h) of the electronic stylus pin bonding apparatus of a described gear is provided with L-type toroidal cavity away from the end face that keeps off input gear (5), is provided with the buffer disc (10j) of a gear electronic stylus pin bonding apparatus and the rubber spring element (10n) of the electronic stylus pin bonding apparatus of a multiple gear in cavity; Between in the gear outer double wedge (10k) of electronic stylus pin bonding apparatus on buffer disc (10j) external cylindrical surface of the electronic stylus pin bonding apparatus of a described gear and L-type toroidal cavity the one interior double wedge (10i) keeping off electronic stylus pin bonding apparatus, the rubber spring element (10n) that is kept off electronic stylus pin bonding apparatus is installed respectively; A pressure-bearing side of the rubber spring element (10n) of the electronic stylus pin bonding apparatus of each gear abuts to interior double wedge (10i) flank of a gear electronic stylus pin bonding apparatus, and another pressure-bearing side abuts to outer double wedge (10k) flank of a gear electronic stylus pin bonding apparatus; The buffer disc (10j) of the electronic stylus pin bonding apparatus of the described gear end face away from gear input gear (5) is also provided with the arc-shaped ring groove (10m) of the electronic stylus pin bonding apparatus of a gear of two Central Symmetries distribution; The diameter that the diameter, that described each one width and keeping off the arc-shaped ring groove (10m) of electronic stylus pin bonding apparatus keeps off the first electronic stylus pin (10d) of electronic stylus pin bonding apparatus keeps off the second electronic stylus pin (10g) of electronic stylus pin bonding apparatus is all equal; It is all equal that the first electronic stylus pin (10d) axis that the radius of central line and of arc-shaped ring groove (10m) of the electronic stylus pin bonding apparatus of described each gear keeps off electronic stylus pin bonding apparatus keeps off electronic stylus pin bonding apparatus the second electronic stylus pin (10g) axis to the distance, that keeps off the axis of the input disc (10a) of electronic stylus pin bonding apparatus keeps off the distance of input disc axle (10a) axis of electronic stylus pin bonding apparatus to one; The central angle that the arc-shaped ring groove (10m) of the electronic stylus pin bonding apparatus of described each gear is corresponding is 90 ~ 180 °; The second electronic stylus pin (10g) maximum extrusion that the first electronic stylus pin (10d) maximum extrusion, that the described each one two ends degree of depth and of keeping off the arc-shaped ring groove (10m) of electronic stylus pin bonding apparatus keeps off electronic stylus pin bonding apparatus keeps off electronic stylus pin bonding apparatus is all equal, the intermediate depth of the arc-shaped ring groove (10m) of the electronic stylus pin bonding apparatus of each gear is zero, and the degree of depth of the remaining part of the arc-shaped ring groove (10m) of the electronic stylus pin bonding apparatus of each gear seamlessly transits gradually;

The close end face keeping off input gear (5) that described one end face and away from gear input gear (5) keeping off the buffer disc (10j) of electronic stylus pin bonding apparatus keeps off the input disc (10a) of electronic stylus pin bonding apparatus remains certain gap;

One end face of the output disc (20h) of the electronic stylus pin bonding apparatus of described two gear is fixedly attached to an end face of input gear (4);

The input disc (20a) of the electronic stylus pin bonding apparatus of described two gear is symmetrically installed with the first electronic stylus pin valve (20b) of two gears electronic stylus pin bonding apparatus and the second electronic stylus pin valve (20e) of the electronic stylus pin bonding apparatus of two gears; First electronic stylus pin valve (20b) of the electronic stylus pin bonding apparatus of described two gear comprises first electromagnetic coil (20c) of two gears electronic stylus pin bonding apparatus and the first electronic stylus pin (20d) of the electronic stylus pin bonding apparatus of two gears; First electronic stylus pin (20d) of the electronic stylus pin bonding apparatus of described two gear is fixedly mounted on one end of the iron core of the first electronic stylus pin valve (20b) of two gears electronic stylus pin bonding apparatus; Second electronic stylus pin valve (20e) of the electronic stylus pin bonding apparatus of described two gear comprises second electromagnetic coil (20f) of two gears electronic stylus pin bonding apparatus and the second electronic stylus pin (20g) of the electronic stylus pin bonding apparatus of two gears; Second electronic stylus pin (20g) of the electronic stylus pin bonding apparatus of described two gear is fixedly mounted on one end of the iron core of the second electronic stylus pin valve (20e) of two gears electronic stylus pin bonding apparatus;

The output disc (20h) of the electronic stylus pin bonding apparatus of described two gear is provided with L-type toroidal cavity away from the end face of input gear (4), and the buffer disc (20j) and multiple two being provided with two gears electronic stylus pin bonding apparatus in cavity keeps off the rubber spring element (20n) of electronic stylus pin bonding apparatus; Between in the two gear outer double wedges (20k) of electronic stylus pin bonding apparatus on buffer disc (20j) external cylindrical surface of the electronic stylus pin bonding apparatus of described two gear and L-type toroidal cavity the two interior double wedges (20i) keeping off electronic stylus pin bonding apparatus, the rubber spring element (20n) that two is kept off electronic stylus pin bonding apparatus is installed respectively; A pressure-bearing side of the rubber spring element (20n) of the electronic stylus pin bonding apparatus of each two gear abuts to interior double wedge (20i) flank of two gears electronic stylus pin bonding apparatus, and another pressure-bearing side abuts to outer double wedge (20k) flank of two gears electronic stylus pin bonding apparatus; The buffer disc (20j) of the electronic stylus pin bonding apparatus of described two gear keeps off the arc-shaped ring groove (20m) of electronic stylus pin bonding apparatus away from the end face of input gear (4) is also provided with two Central Symmetry distributions two; The diameter that the diameter, two that described each two width and two keeping off the arc-shaped ring groove (20m) of electronic stylus pin bonding apparatus keep off the first electronic stylus pin (20d) of electronic stylus pin bonding apparatus keeps off the second electronic stylus pin (20g) of electronic stylus pin bonding apparatus is all equal; It is all equal that the first electronic stylus pin (20d) axis that the radiuss of central line and two of arc-shaped ring groove (20m) of the electronic stylus pin bonding apparatus of described each two gear keep off electronic stylus pin bonding apparatus keeps off electronic stylus pin bonding apparatus the second electronic stylus pin (20g) axis to the distance, two that two keep off the axis of the input disc (20a) of electronic stylus pin bonding apparatus keeps off the distance of input disc axle (20a) axis of electronic stylus pin bonding apparatus to two; The central angle that the arc-shaped ring groove (20m) of the electronic stylus pin bonding apparatus of described each two gear is corresponding is 60 ~ 150 °; The second electronic stylus pin (20g) maximum extrusion that the first electronic stylus pin (20d) maximum extrusion, two that described each two one end degree of depth and two of keeping off the arc-shaped ring groove (20m) of electronic stylus pin bonding apparatus keep off electronic stylus pin bonding apparatus keeps off electronic stylus pin bonding apparatus is all equal, the degree of depth of the other end of the arc-shaped ring groove (20m) of the electronic stylus pin bonding apparatus of each two gear is zero, and the degree of depth of the intermediate portion of the arc-shaped ring groove (20m) of the electronic stylus pin bonding apparatus of each two gear seamlessly transits gradually;

The end face that described two end faces away from input gear (4) and two keeping off the buffer disc (20j) of electronic stylus pin bonding apparatus keep off the close input gear (4) of the input disc (20a) of electronic stylus pin bonding apparatus remains certain gap.