CN207989662U - Multi-clutch module, clutch feed system and electric control hydraulic formula automatic transmission - Google Patents

Abstract

The utility model provides a multi-clutch module, a clutch oil supply system and an electronically controlled hydraulic automatic transmission. The multi-clutch module includes a housing structure, an input shaft arranged in the housing structure, a first planetary row structure, a second planetary row structure, a first clutch structure, a second clutch structure, a third clutch structure, and a brake structure; The first planetary row structure and the second planetary row structure are respectively arranged at both ends of the input shaft, the first clutch structure is connected to the second planetary row structure and the input shaft, and the second clutch structure is connected to the second planetary row structure and the input shaft , the third clutch structure is connected to the first planetary row structure and the input shaft, the brake structure is connected to the second planetary row structure and the housing structure; the first clutch structure is located radially outside the input shaft, the second clutch structure and the third The clutch structures are located side-by-side outside the first clutch structure, and the brake structures are located outside the second and third clutch structures. The multi-clutch module provided by the utility model has a more compact structure, reduces occupied volume, simplifies the structure and reduces assembly requirements.

Description

Multi-clutch module, clutch oil supply system and electronically controlled hydraulic automatic transmission

technical field

The utility model relates to the technical field of automobile transmissions, in particular to a multi-clutch module, a clutch oil supply system and an electronically controlled hydraulic automatic transmission.

Background technique

The electronically controlled hydraulic automatic transmission (AT) is formed by adding an electronic control system on the basis of the traditional hydraulic automatic transmission. It can select the optimal speed ratio for different loads and vehicle speeds, so that the engine can work at the corresponding optimal speed. All gear changes are completed by the transmission itself, and the driver only uses the accelerator pedal to express the intention of changing the vehicle speed and selects the required operating state through the gear selector. This electronically controlled hydraulic automatic transmission generally realizes gear shifting through a planetary gear transmission mechanism including multiple clutches, brakes and planetary rows. Therefore, the volume, weight, efficiency and carrying capacity of the automatic transmission are directly related to the planetary gear mechanism. Moreover, the more the number of gears in the transmission system of the automatic transmission, the lower the fuel consumption of the car and the better the economy. However, as the number of gears increases, the number of clutches, brakes, and planetary rows also increases, making it difficult to achieve a design that satisfies the theoretical step ratio. In traditional technology, wet clutches and brakes of electronically controlled hydraulic automatic transmissions generally use splines between the clutch hub and steel plates or friction plates to transmit torque and speed. Wet clutches and brakes have certain requirements for space layout. For automatic transmissions with multiple clutch assemblies and brakes, the overall space requirements are increased, and the clutch system is more complicated in composition, higher in assembly requirements, and higher in cost. In addition, an automatic transmission with multiple clutch assemblies and brakes also needs multiple oil passages to supply oil, which increases the difficulty of structural layout and process realization of the oil supply system, and increases the manufacturing cost.

Utility model content

Based on this, in order to solve the above problems, the utility model provides a multi-clutch module, which has a more compact structure, reduces the occupied volume, simplifies the structure and reduces assembly requirements.

The utility model also proposes a clutch oil supply system, which can reduce the oil passage of the multi-clutch module oil supply channel, simplify the complex structure, and reduce the processing difficulty.

The utility model also proposes an electronically controlled hydraulic automatic transmission, whose multi-clutch module and clutch oil supply system are relatively compact and simple in structure, can realize more gears, and realize good economy.

Its technical scheme is as follows:

A multi-clutch module, comprising a housing structure, an input shaft arranged in the housing structure, a first planetary row structure, a second planetary row structure, a first clutch structure, a second clutch structure, a third clutch structure and brake structure;

The first planetary row structure and the second planetary row structure are respectively arranged at both ends of the input shaft, and the first clutch structure, the second clutch structure, the third clutch structure and the brake structure are arranged at the first planetary row structure and the second planetary row structure, and the first clutch structure is connected to the second planetary row structure and the input shaft, and the second clutch structure is connected to the second planetary row structure and the On the input shaft, the third clutch structure is connected to the first planetary row structure and the input shaft, and the brake structure is connected to the second planetary row structure and the housing structure;

The first clutch structure is located radially outside of the input shaft, the second clutch structure and the third clutch structure are located side by side outside the first clutch structure, and the brake structure is located between the second clutch structure and the third clutch structure Three-clutch structure outside.

Further technical scheme is described below:

Further, the first planetary row structure includes a first sun gear and a first planet carrier arranged at one end of the input shaft, and a first planet carrier arranged on the first planet carrier and meshed with the first sun gear a planetary gear, and a first ring gear meshing with the first planetary gear;

The second planet row structure includes a second sun gear and a second planet carrier arranged at the other end of the input shaft, and a second planet arranged on the second planet carrier and meshed with the second sun gear wheel, and a second ring gear meshing with said second planetary gear;

The first clutch structure is connected to the input shaft and the second sun gear, the second clutch structure is connected to the input shaft and the second planet carrier, and the third clutch structure is connected to the first The ring gear and the second planet carrier, the brake structure is connected to the housing structure and the second sun gear, or connected to the housing structure and the second planet carrier, and the second ring gear is separated between the second clutch structure and the brake structure.

Further, the first clutch structure, the second clutch structure, the third clutch structure and the brake structure are all configured as multi-plate wet clutches.

Further, the first clutch structure includes a first clutch housing disposed on the input shaft and the second sun gear, and a first clutch main body and a first clutch piston disposed in the first clutch housing structure; and the first clutch main body is connected to the first clutch housing, one end of the first clutch piston structure corresponds to the first clutch main body, and the other end is connected to the input shaft;

the second clutch structure includes a second clutch housing disposed on the input shaft and the second planet carrier, and a second clutch body and a second clutch piston structure disposed in the second clutch housing, and The second clutch housing is located outside the first clutch housing; and the second clutch main body is connected to the second clutch housing, and one end of the second clutch piston structure is connected to the second clutch main body Correspondingly, the other end is connected to the second planet carrier;

The third clutch structure includes a third clutch housing disposed on the first ring gear and the second planet carrier, and a third clutch main body and a third clutch piston structure disposed in the third clutch housing , the third clutch housing and the second clutch housing are arranged side by side; and the third clutch main body is connected to the third clutch housing, and one end of the third clutch piston structure is connected to the third The main body of the clutch is corresponding, and the other end is connected with the second planet carrier;

The brake structure includes a brake housing arranged on the housing structure and the second planetary row structure, and a brake main body and a brake piston structure arranged in the brake housing, and the brake housing passes through the first The second ring gear is separated from the outside of the second clutch housing and the third clutch housing; and the brake main body is connected to the brake housing, one end of the brake piston structure corresponds to the brake main body, and the other One end is connected with the shell structure.

Further, the first clutch housing includes a first clutch inner hub connected to the second sun gear, and a first clutch outer hub connected to the input shaft and located outside the first clutch inner hub ; The first clutch main body includes a plurality of first clutch friction plates arranged on the inner hub of the first clutch, and a plurality of first clutch steel plates arranged on the outer hub of the first clutch, and the plurality of plates The first clutch friction plates are spaced between a plurality of first clutch steel plates;

The second clutch housing includes a second clutch inner hub connected to the input shaft, and a second clutch outer hub connected to the second planet carrier and located outside the second clutch inner hub, the The second clutch inner hub is located outside or on the same side as the first clutch outer hub; the second clutch main body includes a plurality of second clutch friction plates arranged on the second clutch inner hub, and arranged on the first clutch inner hub. A plurality of second clutch steel plates on the outer hub of the second clutch, and the plurality of second clutch friction plates are arranged at intervals between the plurality of second clutch steel plates;

The third clutch housing includes a third clutch inner hub connected to the first ring gear, and a third clutch outer hub connected to the second planet carrier and located outside the third clutch inner hub, The third clutch inner hub is located on the outside or on the same side of the first clutch outer hub; the third clutch main body includes a plurality of third clutch friction plates arranged on the third clutch inner hub, and arranged on A plurality of third clutch steel plates on the outer hub of the third clutch, and the plurality of third clutch friction plates are arranged at intervals between the plurality of third clutch steel plates;

The brake housing includes a brake inner hub connected to the second planet carrier or the second sun gear, and a brake outer hub connected to the housing structure and located outside the brake inner hub, the The brake inner hub is separated from the outer side of the third clutch outer hub through the second ring gear; the brake main body includes a plurality of brake friction plates arranged on the brake inner hub, and a plurality of brake friction plates arranged on the brake outer hub There are multiple pieces of brake steel plates, and the multiple pieces of the brake friction plates are arranged at intervals between the multiple pieces of the brake steel plates.

Further, the first clutch outer hub is simultaneously configured as the second clutch inner hub, the second clutch outer hub is simultaneously configured as the third clutch outer hub, and the first ring gear is simultaneously configured as the The third clutch inner hub, the housing structure is also configured as the brake outer hub.

Further, the first clutch piston structure includes a first clutch piston rod body arranged between the first clutch inner hub and the first clutch outer hub, one end of the first clutch piston rod body is connected to the first clutch main body Correspondingly, the other end is sealingly connected with the input shaft; the first clutch piston structure also includes a first clutch connected to the input shaft and located between the first clutch inner hub and the first clutch outer hub The piston chamber cover and the first clutch balance chamber cover, and the first clutch piston chamber cover and the first clutch balance chamber cover are respectively sealed and connected to both sides of the first clutch piston rod body, and connected to the first clutch piston The first return spring group between the rod body and the first clutch balance chamber cover;

The second clutch piston structure includes a second clutch piston rod body arranged between the second clutch inner hub and the second clutch outer hub, one end of the second clutch piston rod body corresponds to the second clutch main body, and the other One end is sealingly connected with the second planet carrier; the second clutch piston structure also includes a second clutch connected to the second planet carrier and located between the second clutch inner hub and the second clutch outer hub. The clutch piston chamber cover and the second clutch balance chamber cover, and the second clutch piston chamber cover and the second clutch balance chamber cover are respectively sealed and connected to both sides of the second clutch piston rod body, and connected to the second clutch The second return spring group between the piston rod body and the second clutch balance chamber cover;

The third clutch piston structure includes a third clutch piston rod body arranged between the third clutch inner hub and the third clutch outer hub, and one end of the third clutch piston rod body passes through the second clutch body and the second clutch body. The main body of the third clutch corresponds, and the other end is in sealing connection with the second planetary carrier; The third clutch piston chamber cover and the third clutch balance chamber cover between the clutch outer hubs, and the third clutch piston chamber cover and the third clutch balance chamber cover are respectively sealed and connected to both sides of the third clutch piston rod body, And a third return spring group connected between the third clutch piston rod body and the third clutch balance chamber cover;

The brake piston structure also includes a brake piston cylinder connected to the housing structure, a brake piston rod disposed in the brake piston cylinder, and a brake piston rod disposed on the brake piston rod and connected to the housing structure A brake return spring set, one end of the brake piston rod is connected to the brake piston cylinder, and the other end corresponds to the brake main body.

Further, the third clutch balance chamber cover is also set as the second clutch piston chamber cover, and the third clutch outer hub is also set as the third clutch piston chamber cover.

Further, the second sun gear includes a second sun shaft part arranged on the input shaft, and a second sun gear body connected to the second sun shaft part, and the second sun shaft part is close to the a first planetary row structure, the second planetary gear meshes with the second sun gear body;

The second planet carrier includes a planet carrier axial portion sleeved on the second sun shaft portion, and a planet carrier radial portion vertically connected to the planet carrier axial portion, and the second planetary gear is set On the radial part of the planet carrier, the first clutch structure, the second clutch structure and the third clutch structure are arranged between the first planet row structure and the radial part of the planet carrier; the first The clutch outer hub is arranged close to the first planetary row structure, the first clutch inner hub is connected to the end of the second sun shaft; the third clutch outer hub is connected to the second sun shaft, Both the second clutch piston structure and the third clutch piston structure are connected to the axial portion of the planet carrier.

In addition, the utility model also proposes a clutch oil supply system, including the above-mentioned multi-clutch module, and a clutch oil circuit structure arranged in the multi-clutch module;

The clutch oil passage structure includes a main oil inlet oil passage structure, and a first clutch oil passage, a second clutch oil passage, a third clutch oil passage and a brake oil passage respectively communicated with the main oil inlet oil passage structure, and The first clutch oil passage corresponds to the first clutch structure, the second clutch oil passage corresponds to the second clutch structure, the third clutch oil passage corresponds to the third clutch structure, and the brake oil The road corresponds to the structure of the brake.

Further, the main oil inlet passage structure includes a first main oil passage, a second main oil passage, a third main oil passage and a fourth main oil passage axially opened in the input shaft and independent of each other;

The first clutch oil circuit includes a first clutch piston cavity formed between the first clutch piston cavity cover and the first clutch piston rod body, and a first clutch balance cavity formed between the first clutch balance cavity cover and the first clutch piston rod body. A first clutch balance chamber between the clutch piston rods, and the first clutch piston chamber communicates with the first main oil passage, and the first clutch balance chamber communicates with the fourth main oil passage;

The second clutch oil circuit includes a second clutch piston cavity formed between the second clutch piston cavity cover and the second clutch piston rod body, and a second clutch balance cavity cover formed between the second clutch balance cavity cover and the first clutch piston cavity. A second clutch balance chamber between the two clutch piston rods, and the second clutch piston chamber communicates with the second main oil passage, and the second clutch balance chamber communicates with the fourth main oil passage;

The third clutch oil circuit includes a third clutch piston cavity formed between the third clutch piston cavity cover and the third clutch piston rod body, and a third clutch balance cavity cover formed between the third clutch balance cavity cover and the first clutch piston cavity. The third clutch balance chamber between the three clutch piston rods, and the third clutch piston chamber communicates with the third main oil passage, and the third clutch balance chamber communicates with the fourth main oil passage.

Further, the main oil inlet oil passage structure also includes an oil passage shaft connected to the input shaft, and a first oil inlet passage, a second oil inlet passage, a third The oil inlet channel and the fourth oil inlet channel;

It also includes a first connecting oil passage, a second connecting oil passage, a third connecting oil passage and a fourth connecting oil passage respectively opened in the radial direction of the input shaft, and the first oil inlet passage passes through the first connecting oil passage The oil passage communicates with the first main oil passage, the second oil inlet passage communicates with the second main oil passage through the second connecting oil passage, and the third oil inlet passage communicates with the second main oil passage through the third connection The oil passage communicates with the third main oil passage, and the fourth oil inlet passage communicates with the fourth main oil passage through the fourth connecting oil passage.

Further, the main oil inlet oil passage structure also includes a first cylinder liner structure disposed on the oil passage shaft, and a plurality of first sealing rings disposed on the input shaft; and the first cylinder liner The structure corresponds to the input shaft, the first sealing ring is in close contact with the first cylinder liner structure, the first connecting oil passage, the second connecting oil passage, the third connecting oil passage and the fourth connecting oil passage respectively arranged between the two first sealing rings;

The first cylinder liner structure is provided with a plurality of first cylinder liner oil passages, between the first oil inlet passage and the first connecting oil passage, between the second oil inlet passage and the second connecting oil passage , The third oil inlet passage and the third connecting oil passage, and the fourth oil inlet passage and the fourth connecting oil passage are all communicated through one of the first cylinder liner oil passages.

Further, the main oil inlet oil passage structure also includes a first piston oil passage, a first balance oil passage, a second piston oil passage, a second balance oil passage, a third piston oil passage respectively opened in the radial direction of the input shaft. Oil passage, the third balance oil passage;

The first piston oil passage communicates with the first clutch piston cavity and the first main oil passage, and the first balance oil passage communicates with the first clutch balance chamber and the fourth main oil passage; the second The piston oil passage communicates with the second clutch piston chamber and the second main oil passage, and the second balance oil passage communicates with the second clutch balance chamber and the fourth main oil passage; the third piston oil passage communicates with The third clutch piston chamber and the third main oil passage, the third balance oil passage communicates with the third clutch balance chamber and the fourth main oil passage, and the third balance oil passage is connected to the first The two balance oil passages are connected.

Further, the main oil inlet oil passage structure also includes a second piston auxiliary channel, a second balance auxiliary channel, a third piston auxiliary channel, and a third balance auxiliary channel respectively opened in the radial direction of the second sun gear;

The second piston auxiliary passage communicates with the second clutch piston chamber and the second piston oil passage, and the second balance auxiliary passage communicates with the second clutch balance chamber and the second balance oil passage; the third The auxiliary piston passage communicates with the third clutch piston chamber and the third piston oil passage, the third balance auxiliary passage communicates with the third clutch balance chamber and the third balance oil passage, and the third balance auxiliary passage It communicates with the second balance auxiliary passage, and the third balance oil passage coincides with the second balance oil passage.

Further, the main oil inlet oil passage structure also includes a second piston transition channel, a second balance transition channel, a third piston transition channel, and a third balance transition channel respectively opened in the radial direction of the second planet carrier;

The second piston transition channel communicates with the second clutch piston cavity and the second piston auxiliary channel, and the second balance transition channel communicates with the second clutch balance cavity and the second balance auxiliary channel; the third The piston transition channel communicates with the third clutch piston cavity and the third piston auxiliary channel, and the third balance transition channel communicates with the third clutch balance cavity and the third balance auxiliary channel; and the third balance transition channel In communication with the second balanced transition channel, the third balanced auxiliary channel coincides with the second balanced auxiliary channel.

Further, the main oil inlet oil passage structure also includes a second cylinder liner structure arranged on the second sun gear, and a plurality of second sealing rings arranged on the input shaft; and the second cylinder The sleeve structure corresponds to the input shaft, the second sealing ring is in close contact with the second cylinder liner structure, the second piston auxiliary passage, the second balance auxiliary passage, the third piston auxiliary passage, the third balance auxiliary passage The channels are separated between the two second sealing rings;

The second cylinder liner structure is provided with a plurality of second cylinder liner oil passages, between the second piston auxiliary passage and the second piston transition passage, between the second balance auxiliary passage and the second balance transition passage, and between the second piston auxiliary passage and the second balance transition passage. The three-piston auxiliary passages communicate with the third piston transition passage, and the third balance auxiliary passage and the third balance transition passage communicate through one of the second cylinder liner oil passages.

Further, the main oil inlet oil passage structure also includes a third cylinder liner structure arranged outside the second planet carrier, and a plurality of third sealing rings arranged on the second sun gear; and the first The three-cylinder liner structure corresponds to the second sun gear, the third sealing ring is in close contact with the third cylinder liner structure, the second piston transition passage, the second balance transition passage, the third piston transition passage, The third balanced transition channel is separated between the two second sealing rings;

The third cylinder liner structure is provided with a plurality of third cylinder liner oil passages, between the second clutch piston chamber and the second piston transition passage, between the second clutch balance chamber and the second balance transition passage, the first The three-clutch piston cavity and the third piston transition channel, and the third clutch balance cavity and the third balance transition channel are in corresponding communication through one third cylinder liner oil channel.

Further, the main oil inlet oil passage structure also includes planetary row lubrication passages opened in the radial direction of the input shaft, and the planetary row lubrication passages communicate with the fourth main oil passage and the first planetary row structure .

Further, the first main oil passage, the second main oil passage, the third main oil passage and the fourth main oil passage are all set as blind holes with one end open and one end closed, and the first main oil passage, the second main oil passage The opening ends of the main oil passage, the third main oil passage and the fourth main oil passage are all interference-sealed by sealing balls.

Further, the first clutch oil circuit includes a first clutch lubricating and cooling cavity formed between the first clutch outer hub and the first clutch inner hub, and a cavity opened on the first clutch inner hub and connected to the first clutch inner hub. The first inner hub lubricating cooling channel corresponding to the first clutch body, and the first inner hub lubricating cooling channel communicates with the fourth main oil channel through the first clutch lubricating cooling cavity;

The second clutch oil circuit includes a second inner hub lubricating and cooling passage opened on the second clutch inner hub and corresponding to the second clutch main body, and a first inner hub lubricating and cooling passage opened on the first clutch outer hub. The outer hub lubricating cooling channel, and the second inner hub lubricating cooling channel communicates with the fourth main oil channel through the first outer hub lubricating cooling channel, the first inner hub lubricating cooling channel and the first clutch lubricating cooling cavity ;

The third clutch oil passage includes a third inner hub lubricating and cooling passage opened on the third clutch inner hub and corresponding to the third clutch main body, and the third inner hub lubricating and cooling passage passes through the third inner hub lubricating and cooling passage. An outer hub lubricating and cooling passage, a first inner hub lubricating and cooling passage and a first clutch lubricating and cooling cavity communicate with the fourth main oil passage.

Further, the main oil inlet oil passage structure also includes a fifth main oil passage opened on the housing structure;

The brake oil circuit includes a brake piston cavity formed between the brake piston cylinder and the brake piston rod, a brake lubricating and cooling passage opened on the brake inner hub and corresponding to the brake main body, opened in the first The second outer hub lubricating and cooling channel on the second clutch outer hub, the third outer hub lubricating and cooling channel opened on the third clutch outer hub, and the ring gear lubricating and cooling channel opened on the second ring gear; And the brake piston cavity communicates with the fifth main oil passage, and the brake lubrication cooling passage passes through the ring gear lubrication cooling passage, the second outer hub lubrication cooling passage, the third outer hub lubrication cooling passage and the first The three inner hub lubricating and cooling passages communicate with the second inner hub lubricating and cooling passage.

In addition, the utility model also proposes an electronically controlled hydraulic automatic transmission, including the above-mentioned clutch oil supply system.

The utility model has the following outstanding advantages:

1. The multi-clutch module realizes the modular integrated design of three wet clutch structures and one brake structure through the reasonable combination and arrangement of inner and outer nested structures, which makes the occupied axial dimension shorter, compact in structure, and more conducive to electronic control The overall layout of the hydraulic automatic transmission;

2. The multi-clutch module has a new type of clutch oil supply system, which can respectively realize the oil supply for the piston cavity, balance cavity and lubrication and cooling of three clutch structures and one brake structure;

3. The multi-clutch module has a short axial dimension and a compact overall structure, so it can be flexibly applied to six-speed electronically controlled hydraulic automatic transmissions; in addition, on the basis of the multi-clutch module, by adding a planetary row at the front or rear end, And adding a brake or one-way clutch at its radially outer end can realize the application in more gears such as eight-speed or nine-speed electronically controlled hydraulic automatic transmission;

4. The multi-clutch module has a more compact structure, which is more conducive to shortening the axial space, is conducive to lightweight design, and is conducive to reducing costs;

5. The clutch oil supply system of the multi-clutch module makes full use of the structural advantages of the multi-clutch module itself, and arranges the piston chamber, balance chamber and different oil passages required for lubrication and cooling. The multi-clutch module itself does not need to add additional oil passages The structure of parts reduces the manufacturing cost;

6. The clutch oil supply system of the multi-clutch module uses one input shaft to form multiple independent oil passages by arranging multiple axial oil passages and radial oil passages, and realizes the multi-channel oil supply of the multi-clutch module. requirements, and the input shaft is a slender shaft of a common type in vehicle transmissions, the structure is easy to realize, the process is simple, and the manufacturing cost is reduced.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of a multi-clutch module according to an embodiment of the present invention;

Fig. 2 is a schematic cross-sectional structure diagram of the clutch oil supply system according to the embodiment of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram 1 of the input shaft of the clutch oil supply system according to the embodiment of the present invention;

Fig. 4 is a second perspective view of the input shaft of the clutch oil supply system according to the embodiment of the present invention.

Explanation of reference signs:

1-first clutch structure, 11-first clutch friction plate, 12-first clutch steel plate, 13-first clutch end steel plate, 14-first clutch snap ring, 15-first clutch piston rod body, 16- The first clutch piston chamber cover, 17-the first return spring set, 18-the first clutch balance chamber cover, 19-the first clutch chamber cover snap ring, 20-the first clutch piston seal ring, 21-the inside of the first clutch Hub, 22-first clutch outer hub (second clutch inner hub), 3-second clutch structure, 31-second clutch friction plate, 32-second clutch steel plate, 33-second clutch end steel plate, 34 -second clutch snap ring, 35-second clutch piston rod body, 36-second return spring set, 37-second clutch balance chamber cover, 38-second clutch chamber cover snap ring, 39-second clutch outer hub (third clutch outer hub), 40-oil passage shaft, 41-first cylinder liner structure, 5-third clutch structure, 51-third clutch friction plate, 52-third clutch steel plate, 53-third clutch End steel plate, 54-third clutch snap ring, 55-third clutch piston rod body, 56-third return spring group, 57-third clutch balance chamber cover, 58-third clutch inner hub (first ring gear ), 6-brake structure, 61-brake friction plate, 62-brake steel plate, 63-brake end steel plate, 64-brake steel plate snap ring, 65-brake piston rod body, 66-brake piston cylinder, 67-brake piston Cylinder snap ring, 68-brake return spring set, 69-brake inner hub, 7-first planetary row structure, 71-first sun gear, 72-first planet carrier, 73-first gear spacer, 74- The needle roller of the first gear, 75-the first planetary wheel, 8-the second planetary row structure, 81-the second sun gear, 82-the second planetary wheel, 83-the needle roller of the second gear, 84-the spacer of the second gear , 85-second planet carrier, 86-second ring gear, 9-input shaft, 10-housing structure, (91,92)-first bearing, 93-second bearing, 94-third bearing, 95- The third sealing ring, 96-the second sealing ring, 97-the third cylinder liner structure, 98-the second cylinder liner structure, 99-the first sealing ring, (101,102,103,104)-seal ball, f1-the first Oil passage, f2-second oil passage, f3-third oil passage, f4-fourth oil passage, 1a-first clutch piston chamber, 1b-first clutch balance chamber, 3a-second clutch piston chamber, 3b- Second clutch balance chamber, 5a-third clutch piston chamber, 5b-third clutch balance chamber, 6a-brake piston chamber, 8b-second piston auxiliary channel, 8a-second balance auxiliary channel (third balance auxiliary channel) , 8c-third piston auxiliary channel, 8e-second piston transition channel, 8d-second balance transition channel, 8h-third piston transition channel, 8f-third balance transition channel, 8g-fourth auxiliary transition channel, 9c -1st main oil gallery, 9h-second main oil gallery, 9j-third Main oil passage, 9a-fourth main oil passage, 9m-first connecting oil passage, 9n-second connecting oil passage, 9p third connecting oil passage, 9r-fourth connecting oil passage, 9d-first piston oil passage , 9e-first balance oil passage, 9i-second piston oil passage, 9g-second balance oil passage (third balance oil passage), 9k-third piston oil passage, 10a-fifth main oil passage, 21a- The first inner hub lubricating and cooling channel, 22a-the second inner hub lubricating and cooling channel (the first outer hub lubricating and cooling channel), 39a-the third outer hub lubricating and cooling channel, 39b-the second outer hub lubricating and cooling channel, 40b-the first One oil inlet passage, 40c-the second oil inlet passage, 40d-the third oil inlet passage, 40a-the fourth oil inlet passage, (41b, 41c, 41d, 41a)-the first cylinder liner oil passage, 58a-the third Inner hub lubricating and cooling channel, 66a-piston cylinder oil channel, 69a-brake lubricating and cooling channel, 86a-ring gear lubricating and cooling channel, (97a, 97b)-third cylinder liner oil channel, (98a, 98b, 98c)-the first Two-cylinder liner oil passage.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same reference numerals in the various drawings represent the same parts. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, but not to be construed as limiting the present utility model.

As shown in Figure 1, the utility model proposes a multi-clutch module, including a housing structure 10, an input shaft 9, a first planetary row structure 7, a second planetary row structure 8, a A clutch structure 1 , a second clutch structure 3 , a third clutch structure 5 and a brake structure 6 . The above-mentioned multi-clutch module composed of multiple clutch structures, brake structures and planetary row structures can realize the switching of different gears through the engagement and separation of different clutch structures. Moreover, by arranging multiple clutch structures, brake structures and planetary row structures, the number of gears can be increased, so that the fuel consumption of the car is lower and the economy is better.

Moreover, the above-mentioned first planetary row structure 7 and second planetary row structure 8 are respectively arranged at both ends of the input shaft 9, and the first clutch structure 1, the second clutch structure 3, the third clutch structure 5 and the brake structure 6 are arranged on Between the first planetary row structure 7 and the second planetary row structure 8, and the first clutch structure 1 is connected to the second planetary row structure 8 and the input shaft 9, and the second clutch structure 3 is connected to the second planetary row structure The third clutch structure 5 is connected to the first planetary row structure 7 and the input shaft 9 , and the brake structure 6 is connected to the second planetary row structure 8 and the housing structure 10 . In this way, it is convenient to connect the above-mentioned multiple clutch structures and brake structures with the planetary row structures on both sides, and it is also convenient to centrally arrange the multiple clutch structures and brake structures. Moreover, the first clutch structure 1 is located radially outside of the input shaft 9, the second clutch structure 3 and the third clutch structure 5 are located side by side outside the first clutch structure 1, and the brake structure 6 is located between the second clutch structure 3 and the second clutch structure. Three-clutch structure 5 outside. In this way, three clutch structures and one brake structure can be integrated and designed in a nested structure inside and outside, that is, multiple clutch structures and brake structures are more likely to be relatively concentrated, so that multiple clutch structures and brake structures A fully nested arrangement can be achieved, so that the arrangement of the clutch structure and the brake structure can be highly integrated. In this way, the size occupied by the axial direction is not larger than the size occupied when the two clutch structures are separately arranged axially, which more effectively shortens the axial space, makes the axial structure more compact, and is more conducive to the use of the transmission on a front-front drive transverse vehicle machine layout.

Further, the above-mentioned first planet row structure 7 includes a first sun gear 71 and a first planet carrier 72 arranged at one end of the input shaft 9 , and a first planet carrier 72 arranged on the first planet carrier 72 and meshed with the first sun gear 71 The planetary gear 75, and the first ring gear 58 meshing with the first planetary gear 75. The first sun gear 71 can drive the first planetary gear 75 to rotate, thereby driving the first ring gear 58 to rotate. Moreover, the first planetary row structure 7 further includes a first gear spacer 73 arranged radially between the first planet carrier 72 and the first planetary gear 75 for filling the radial gap therebetween. The first planet row structure 7 also includes a first gear needle roller 74 arranged axially between the first planet carrier 72 and the first planet wheel 75, on the one hand, it can fill the axial gap between the two, and on the other hand On the one hand, it is also convenient for the relative rotation of the two. In addition, the first planetary row structure 7 also includes first bearings (91, 92) arranged between the first sun gear 71 and the first ring gear, and between the first ring gear and the first clutch structure, which can ensure that the first Both the sun gear 71 and the first ring gear, and between the first ring gear and the first clutch structure can rotate relative to each other.

In addition, the second planetary row structure 8 includes a second sun gear 81 and a second planet carrier 85 arranged on the other end of the input shaft 9 , arranged on the second planet carrier 85 and meshed with the second sun gear 81 The second planetary gear 82 and the second ring gear 86 meshing with the second planetary gear 82 . The second sun gear 81 can drive the second planetary gear 82 to rotate, thereby driving the second ring gear 86 to rotate. Moreover, the second planetary row structure 8 also includes a second gear spacer 84 arranged radially between the second planetary carrier 85 and the second planetary gear 82 , for filling the radial gap therebetween. The second planetary row structure 8 also includes a second gear needle roller 83 arranged between the second planetary carrier 85 and the second planetary wheel 82 in the axial direction. On the one hand, the axial gap between the two can be filled, and on the other hand On the one hand, it is also convenient for the relative rotation of the two. In addition, a second bearing 93 is also provided between the second planet carrier 85 and the second sun gear 81 to ensure that the two can rotate relative to each other; a third bearing 94 is provided between the second sun gear 81 and the input shaft 9, which can also be Ensure that the two can rotate relative to each other.

Moreover, the above-mentioned first clutch structure 1 is connected to the input shaft 9 and the second sun gear 81, the combination and separation of the input shaft 9 and the second sun gear 81 can be realized through the first clutch structure 1, and a gear shifting form can be realized The above-mentioned second clutch structure 5 is connected to the input shaft 9 and the second planet carrier 85, the combination and separation of the input shaft 9 and the second planet carrier 85 can be realized through the second clutch structure 3, and another shifting form can be realized The above-mentioned third clutch structure 5 is connected on the first ring gear 58 and the second planet carrier 85, the combination and separation of the first ring gear 58 and the second planet carrier 85 can be realized through the third clutch structure 5, and another A shifting form; the above-mentioned brake structure 6 is connected to the housing structure 10 and the second sun gear 81, or connected to the housing structure 10 and the second planet carrier 85, and the second ring gear 86 is separated from the second clutch structure 3 and the brake structure 6, the second sun gear 81 or the second planet carrier 85 can be braked through the brake structure 6.

In addition, the first clutch structure 1 , the second clutch structure 3 , the third clutch structure 5 and the brake structure can all be configured as multi-plate wet clutches. Further, the first clutch structure 1 includes a first clutch housing disposed on the input shaft 9 and the second sun gear 81, and a first clutch main body and a first clutch piston structure disposed in the first clutch housing; And the first clutch main body is connected to the first clutch housing, one end of the first clutch piston structure corresponds to the first clutch main body, and the other end is connected to the input shaft 9 . Through the structure of the first clutch piston, the first clutch main body and the first clutch housing can be driven to combine or separate, so as to realize the combination or separation of the input shaft 9 connected with the first clutch housing and the second sun gear 81 .

Further, the above-mentioned first clutch housing includes a first clutch inner hub 21 connected to the second sun gear 81, and connected to the input shaft 9 and located outside the first clutch inner hub 21 (referring to a radial direction away from the input shaft). side) of the first clutch outer hub 22; the above-mentioned first clutch body includes a plurality of first clutch friction plates 11 arranged on the first clutch inner hub 21, and a plurality of first clutch friction plates arranged on the first clutch outer hub 22. Clutch steel plates 12 , and multiple first clutch friction plates 11 are arranged at intervals between the multiple first clutch steel plates 12 . Through the first clutch piston structure, the first clutch friction plate 11 can be driven to be clamped with the first clutch steel plate 12, and the entire first clutch main body can be clamped as one, so that the first clutch connected with the first clutch friction plate 11 The inner hub 21 and the first clutch outer hub 22 connected to the first clutch steel plate 12 are connected together, so as to connect the input shaft 9 and the second sun gear 81 together. In addition, the first clutch main body also includes a first clutch end steel plate 13 disposed on the outermost side (referring to the side away from the first clutch piston structure), and a first clutch end steel plate 13 and a first clutch outer hub The first clutch snap ring 14 between 22 is convenient to fasten the whole first clutch main body. Moreover, the first clutch inner hub 21 and the second sun gear 81 can be solidly connected by welding, the first clutch outer hub 22 can be solidly connected with the input shaft 9 by welding, the first clutch friction plate 11 and the first clutch The inner hub 21 can be splined with loose fit, and the first clutch steel plate 12 and the first clutch end steel plate 13 can be connected with the first clutch outer hub 22 through splines with loose fit.

Moreover, the above-mentioned first clutch piston structure includes a first clutch piston rod body 15 arranged between the first clutch inner hub 21 and the first clutch outer hub 22, one end of the first clutch piston rod body 15 corresponds to the first clutch main body, and the other One end is sealingly connected with the input shaft 9 (that is, the first clutch piston seal ring 20 is set between the input shaft 9 and the first clutch piston rod body 15 for sealing connection, so that the first clutch piston rod 15 can be sealed with the input shaft 9. , while sliding along the surface of the input shaft 9), so that the first clutch piston rod body 15 can move to both sides, thereby clamping (that is, coupling) or loosening (that is, separating) the first clutch main body. Moreover, the above-mentioned first clutch piston structure also includes a first clutch piston chamber cover 16 (the first clutch piston chamber cover 16) that is connected on the input shaft 9 and is positioned between the first clutch inner hub 21 and the first clutch outer hub 22. One end of which is directly fixed on the input shaft 9) and the first clutch balance chamber cover 18 (fastened on the input shaft 9 through the first clutch chamber cover snap ring 19), and the first clutch piston chamber cover 16 and the first clutch balance The chamber cover 18 is respectively hermetically connected (i.e., is sealed and connected by a sealing ring or a gasket, and the two are not fixed) to both sides of the first clutch piston rod body 15, and is connected to the first clutch piston rod body 15 and the first clutch balance chamber cover The first return spring group 17 between 18. The first clutch piston rod body 15 can move toward or away from the first clutch main body under the action of hydraulic pressure, so as to make the first clutch main body engage or disengage. Moreover, the first clutch piston chamber cover 16 and the first clutch balance chamber cover 18 can support the first clutch piston rod body 15 from both sides (but the first clutch piston rod body 15 will not be fixed), so that the first clutch piston The rod body 15 is stable and reliable, and can also move freely.

In addition, the above-mentioned second clutch structure 3 includes a second clutch housing arranged on the input shaft 9 and the second planet carrier 85, and a second clutch main body and a second clutch piston structure arranged in the second clutch housing , and the second clutch housing is located outside the first clutch housing (referring to the side away from the radial direction of the input shaft 9); and the second clutch main body is connected to the second clutch housing, and one end of the second clutch piston structure is connected to the second The main body of the clutch is corresponding and the other end is connected with the second planet carrier 85 . The structure of the second clutch piston can drive the second clutch main body and the second clutch housing to combine or separate, so as to realize the combination or separation of the input shaft 9 connected with the second clutch housing and the second planet carrier 85 .

Moreover, the second clutch housing includes a second clutch inner hub connected with the input shaft 9, and a second clutch outer hub connected with the second planet carrier 85 and positioned outside the second clutch inner hub, the second clutch inner hub is located at The outer side or the same side of the first clutch outer hub 22; the second clutch main body includes a plurality of second clutch friction plates 31 arranged on the second clutch inner hub, and a plurality of second clutch steel plates arranged on the second clutch outer hub plates 32 , and multiple second clutch friction plates 31 are spaced between multiple second clutch steel plates 32 . The second clutch friction plate 31 can be driven to be clamped with the second clutch steel plate 32 through the structure of the second clutch piston, and the whole second clutch main body can be clamped as one, so that the second clutch connected with the second clutch friction plate 31 The inner hub and the second clutch outer hub connected with the second clutch steel plate 32 are connected together, so as to connect the input shaft 9 and the second planet carrier 85 together. In addition, the second clutch main body also includes a second clutch end steel plate 33 disposed on the outermost side (referring to the side away from the second clutch piston structure), and a second clutch end steel plate 33 and a second clutch outer hub The second clutch snap ring 34 between them is convenient for clamping the whole second clutch main body. Moreover, the second clutch outer hub 39 is solidly connected to the second planetary carrier 85 by welding, the second clutch friction plate 31 is connected to the first clutch outer hub 22 through splines with loose fit, and the second clutch steel plate 32 and the second The steel plates 33 at the end of the two clutches are all connected to the second clutch outer hub 39 by splines with clearance fit.

The above-mentioned second clutch piston structure includes a second clutch piston rod body 35 arranged between the second clutch inner hub and the second clutch outer hub 39, one end of the second clutch piston rod body 35 corresponds to the second clutch main body, and the other end corresponds to the second clutch body. The planet carrier 85 is sealed and connected (that is, the second clutch piston sealing ring is set between the second planet carrier 85 and the second clutch piston rod body 35 to carry out the sealing connection, so that the second clutch piston rod 35 can maintain the contact between the second planet carrier 85 and the second planet carrier 85. sealing, and can also slide along the surface of the second planetary carrier 85), so that the second clutch piston rod body 35 can move to both sides, thereby clamping (that is, coupling) or loosening (that is, separating) the second clutch main body. The second clutch piston structure also includes a second clutch piston chamber cover (one end of the second clutch piston chamber cover can be directly fixed) that is connected on the second planet carrier 85 and is positioned between the second clutch inner hub and the second clutch outer hub. on the second planet carrier 85) and the second clutch balance chamber cover 37 (fastened on the second planet carrier 85 by the second clutch chamber cover snap ring 38), and the second clutch piston chamber cover and the second clutch balance chamber The cover 37 is respectively hermetically connected (i.e. through a seal ring or gasket, the two are not fixed) to both sides of the second clutch piston rod body 35, and connected to the second clutch piston rod body 35 and the second clutch balance chamber cover 37 Between the second return spring group 36. The second clutch piston rod body 35 can move toward or away from the second clutch main body under the action of hydraulic pressure, so as to make the second clutch main body engage or disengage. Moreover, the second clutch piston chamber cover and the second clutch balance chamber cover 37 can support the second clutch piston rod body 35 from both sides (but the second clutch piston rod body 35 will not be fixed), so that the second clutch piston rod body 35 is stable and reliable, and can move freely.

In addition, the above-mentioned third clutch structure 5 includes a third clutch housing arranged on the first ring gear 58 and the second planet carrier 85, and a third clutch main body and a third clutch piston structure arranged in the third clutch housing . And the third clutch body is connected to the third clutch housing, one end of the third clutch piston structure corresponds to the third clutch body, and the other end is connected to the second planet carrier 85 . Through the structure of the third clutch piston, the third clutch main body and the third clutch housing can be driven to combine or separate, so as to realize the combination or separation of the first ring gear 58 connected with the third clutch housing and the second planet carrier 85 . Moreover, the third clutch housing and the second clutch housing are arranged side by side, so that the second clutch structure and the third clutch structure are arranged side by side in the axial direction of the input shaft 9, so that the radial and radial directions of the input shaft 9 can be reasonably utilized. The axial space makes the structure of three clutches and one brake compact and reasonable, and does not occupy too much space in the radial direction.

Moreover, the third clutch housing includes a third clutch inner hub connected with the first ring gear 58, and is connected with the second planet carrier 85 and is located outside the third clutch inner hub (referring to the side away from the radial direction of the input shaft 9). ) of the third clutch outer hub, the third clutch inner hub is located on the outside or the same side of the first clutch outer hub; the third clutch main body includes a plurality of third clutch friction plates 51 arranged on the third clutch inner hub, and the setting A plurality of third clutch steel plates 52 on the third clutch outer hub, and a plurality of third clutch friction plates 51 are arranged between the plurality of third clutch steel plates 52 at intervals. Through the structure of the third clutch piston, the third clutch friction plate 51 can be driven to be clamped with the third clutch steel plate 52, and the whole third clutch main body can be clamped as one, so that the third clutch connected with the third clutch friction plate 51 The inner hub and the third clutch outer hub connected to the third clutch steel plate 52 are connected together, thereby connecting the first ring gear 58 and the second planet carrier 85 together. In addition, the third clutch main body also includes a third clutch end steel plate 53 disposed on the outermost side (referring to the side away from the third clutch piston structure), and a third clutch end steel plate 53 and a third clutch outer hub The third clutch snap ring 54 between them is convenient to fasten the whole third clutch main body. Moreover, the third clutch friction plate 51 is connected to the third clutch inner hub 58 by a spline that is loosely fitted, and the third clutch steel plate 52 and the third clutch end steel plate 53 are all connected to the third clutch outer hub by a spline that is loosely fitted. connect.

The above-mentioned third clutch piston structure includes a third clutch piston rod body 55 arranged between the third clutch inner hub and the third clutch outer hub, and one end of the third clutch piston rod body 55 passes through the second clutch main body (it can be referred to as passing through the second clutch body). The area where the clutch body is located, not just through the second clutch body itself, so that the third clutch piston structure and the second clutch piston structure can be arranged on the same side, which is convenient for the third clutch piston structure and the second clutch piston structure The integrated arrangement can further reduce the occupied space) corresponds to the third clutch main body, and the other end is in sealing connection with the second planet carrier 85 (that is, the third clutch piston is set between the second planet carrier 85 and the third clutch piston rod body 55 The seal ring is sealed and connected so that the third clutch piston rod body 55 can maintain a seal with the second planet carrier 85, and can also slide along the surface of the second planet carrier 85), so that the third clutch piston rod body 55 can move to both sides. movement, thereby clamping (ie, engaging) or loosening (ie, disengaging) the third clutch body. The third clutch piston structure also includes a third clutch piston chamber cover connected to the second planet carrier 85 and between the third clutch inner hub and the third clutch outer hub (one end of the third clutch piston chamber cover can be directly fixed on the second planetary carrier 85) and the third clutch balance chamber cover 57 (one end of the third clutch balance chamber cover can also be directly fixed on the second planetary carrier 85, or be fixed on the second planetary carrier 85 by the snap ring of the third clutch chamber cover snap ring on the second planet carrier 85), and the third clutch piston chamber cover and the third clutch balance chamber cover are respectively sealed and connected (that is, sealed and connected by a sealing ring or a gasket, and the two are not fixed) to the third clutch piston rod body 55 side, and the third return spring set 56 connected between the third clutch piston rod body 55 and the third clutch balance chamber cover 57 . Similarly, the third clutch piston rod body 55 can move toward or away from the third clutch main body under the action of hydraulic pressure, so as to make the third clutch main body engage or disengage. And the third clutch piston chamber cover and the third clutch balance chamber cover 57 can support the third clutch piston rod body 55 from both sides (but the third clutch piston rod body 55 can not be fixed), so that the third clutch piston rod body can 55 is stable and reliable, and can move freely.

In addition, the above-mentioned brake structure 6 includes a brake housing arranged on the housing structure 10 and the second planetary row structure 8, and a brake main body and a brake piston structure arranged in the brake housing. The brake housing is separated by the second ring gear. It is arranged outside the second clutch housing and the third clutch housing; and the brake main body is connected to the brake housing. One end of the brake piston structure corresponds to the brake main body, and the other end is connected to the housing structure 10 . The brake main body and the brake housing can be driven to combine or separate through the brake piston structure, so as to realize the combination or separation of the housing structure 10 connected with the brake housing and the second planetary row structure 8 .

Further, the brake housing includes a brake inner hub connected to the second planet carrier 85 or the second sun gear 81, and connected to the housing structure 10 and located outside the brake inner hub (referring to the side away from the radial direction of the input shaft). ) of the brake outer hub, the brake inner hub is arranged outside the third clutch outer hub through the second ring gear; the brake main body includes a plurality of brake friction plates 61 arranged on the brake inner hub, and a plurality of brake friction plates arranged on the brake outer hub Brake steel plates 62, and multiple brake friction plates 61 are arranged between the multiple brake steel plates 62 at intervals. Through the brake piston structure, the brake friction plate 61 can be driven to be clamped with the brake steel plate 62, and the whole brake main body can be clamped together, so that the brake inner hub connected with the brake friction plate 61 and the brake steel plate 62 are connected. The outer hubs are connected together, thereby connecting the second planet carrier 85 (or the second sun gear 81 ) and the housing structure 10 together. In addition, the brake main body also includes a brake end steel plate 63 arranged on the outermost side (referring to the side away from the brake piston structure), and a brake snap ring 64 arranged between the brake end steel plate 63 and the outer hub of the brake, so as to facilitate the The entire brake body snaps tight. Moreover, the brake friction plate 61 is connected to the brake inner hub 69 through a loose fit spline, and the brake steel plate 62 and the brake end steel plate 63 are connected to the housing structure 10 through a loose fit spline.

Moreover, the brake piston structure also includes a brake piston cylinder 66 connected to the housing structure 10, a brake piston rod 65 disposed in the brake piston cylinder 66, and a brake piston rod 65 disposed on the brake piston rod 65 and connected to the housing structure 10. The brake return spring group 67, one end of the brake piston rod 65 is slidingly connected with the brake piston cylinder 66, and the other end is corresponding to the brake main body. The brake piston rod body 65 can slide left and right in the brake piston cylinder 66 under the action of hydraulic pressure, so as to move toward or away from the brake main body, so that the brake main body can be combined or separated.

Moreover, the first clutch outer hub is set as the second clutch inner hub at the same time, so that the vertical integration of the first clutch housing and the first clutch structure with the second clutch housing and the second clutch structure can be realized; and, the second The second clutch outer hub is set as the third clutch outer hub at the same time, so that the horizontal integration of the second clutch housing and the second clutch structure and the third clutch housing and the third clutch structure can be realized; moreover, the first ring gear is set at the same time It is the inner hub of the third clutch, so that the horizontal integration of the third clutch housing and the third clutch structure with the first ring gear and the first planetary row structure can be realized; moreover, the housing structure is also set as the outer hub of the brake, which can The integrated arrangement of the brake housing and the brake structure and the housing structure is realized. In addition, the third clutch balance chamber cover is also set as the second clutch piston chamber cover, and the third clutch outer hub is also set as the third clutch piston chamber cover, so that the second clutch piston structure and the second clutch structure can be combined with the third clutch. The integrated arrangement of the piston structure and the third clutch structure. Therefore, the integrated arrangement of the first clutch structure, the second clutch structure, the third clutch structure and the brake structure in the radial and axial directions of the input shaft can be realized, making the whole structure compact and simple.

In addition, the second sun gear 81 includes a second sun shaft part arranged on the input shaft 9 and a second sun gear body connected to the second sun shaft part, the second sun shaft part is close to the first planetary row structure 7, and the second The planetary gear is meshed with the second sun gear body; and the second planetary carrier 85 includes a planetary carrier axial part sleeved on the second sun shaft part, and a planetary carrier radial part vertically connected to the planetary carrier axial part, The second planetary gear is arranged on the radial part of the planetary carrier, and the first clutch structure, the second clutch structure and the third clutch structure are arranged between the first planetary row structure and the radial part of the planetary carrier; the outer hub of the first clutch is close to the second A planetary row structure is set, the inner hub of the first clutch is connected to the end of the second sun shaft; the outer hub of the third clutch is connected to the second sun shaft, the second clutch piston structure and the third clutch The piston structures are all connected to the axial part of the planet carrier. In this way, it is convenient to arrange the second clutch piston structure and the third clutch piston structure on the radial direction and the axial direction of the second planet carrier 85, so that the second clutch piston structure and the third clutch piston structure are arranged more compactly, and the degree of integration is higher. high.

In addition, as shown in FIG. 1 to FIG. 2 , the utility model also proposes a clutch oil supply system, which includes the above-mentioned multi-clutch module, and a clutch oil circuit structure arranged in the multi-clutch module. Oil is supplied to multiple clutch structures and brake structures in the multi-clutch module through the clutch oil circuit structure to ensure their normal operation. Moreover, the clutch oil passage structure includes a main oil inlet oil passage structure, and a first clutch oil passage, a second clutch oil passage, a third clutch oil passage and a brake oil passage respectively communicated with the main oil inlet oil passage structure. And the first clutch oil circuit corresponds to the first clutch structure 1, and supplies oil for the first clutch structure 1; the second clutch oil circuit corresponds to the second clutch structure 3, and supplies oil for the second clutch structure 1; the third clutch oil circuit It corresponds to the third clutch structure 5 and supplies oil to the third clutch structure 5 ; the brake oil circuit corresponds to the brake structure 6 and supplies oil to the brake structure 6 . Thus, the first oil channel f1 that provides the pressure oil required for the first clutch structure 1 to work, and the second oil channel f2 that provides the pressure oil required for the second clutch structure 3 to work, is the third clutch structure. 5. The third oil passage f3 that provides the required pressure oil during operation, and the fourth oil passage f4 that provides the cooling oil required for the multi-clutch module during operation. The oil is provided by the oil supply device of the automatic transmission such as an oil pump.

Moreover, as shown in Figures 3 to 4, the above-mentioned main oil inlet passage structure includes a first main oil passage 9c, a second main oil passage 9h, a third main oil passage, which are axially opened in the input shaft 9 and are independent of each other. Road 9j and the fourth main oil passage 9a. Moreover, the main oil inlet passage structure also includes an oil passage shaft 40 connected to the input shaft 9, and a first oil inlet passage 40b, a second oil inlet passage 40c, and a third oil inlet passage 40b respectively opened in the radial direction of the oil passage shaft 40. The oil passage 40d and the fourth oil inlet passage 40a; also include the first connecting oil passage 9m, the second connecting oil passage 9n, the third connecting oil passage 9p and the fourth connecting oil passage 9r respectively opened in the radial direction of the input shaft 9, And the first oil inlet passage 40b communicates with the first main oil passage 9c through the first connecting oil passage 9m, the second oil inlet passage 40c communicates with the second main oil passage through the second connecting oil passage, and the third oil inlet passage 40c communicates with the second main oil passage through the second connecting oil passage. The oil passage communicates with the third main oil passage 9j through the third connecting oil passage 9n, and the fourth oil inlet passage 40a communicates with the fourth main oil passage 9a through the fourth connecting oil passage 9r.

Further, the above-mentioned main oil inlet oil passage structure also includes a first cylinder liner structure 41 arranged on the oil passage shaft 40 , and a plurality of first sealing rings 99 arranged on the input shaft 9 . And the first cylinder liner structure 41 corresponds to the input shaft 9, the first sealing ring 99 is in close contact with the first cylinder liner structure 41, the first connecting oil passage 9m, the second connecting oil passage 9n, the third connecting oil passage 9p and the second connecting oil passage The four connecting oil passages 9r are respectively arranged between the two first sealing rings 99 to ensure the sealing of each connecting oil passage. Moreover, the first cylinder liner structure 41 is provided with a plurality of first cylinder liner oil passages (41b, 41c, 41d, 41a), between the first oil inlet passage 40b and the first connecting oil passage 9m, the second oil inlet passage 40c and the second connecting oil passage 9n, between the third oil inlet passage 40d and the third connecting oil passage 9p, and between the fourth oil inlet passage 40a and the fourth connecting oil passage 9r through a first liner oil The lanes (41b, 41c, 41d, 41a) are correspondingly connected.

Moreover, the above-mentioned first clutch oil circuit includes the first clutch piston chamber 1a formed between the first clutch piston chamber cover 16 and the first clutch piston rod body 15, and the first clutch piston chamber 1a formed between the first clutch balance chamber cover 18 and the first clutch piston chamber. The first clutch balance chamber 1b between the rod bodies 15, and the first clutch piston chamber 1a communicates with the first main oil passage 9c, and the first clutch balance chamber 1b communicates with the fourth main oil passage 9a. Moreover, the main oil inlet oil passage structure also includes a first piston oil passage 9d and a first balance oil passage 9e respectively opened in the radial direction of the input shaft 9, and the first piston oil passage 9d communicates with the first clutch piston cavity 1a and the first main oil passage. The oil passage 9c and the first balance oil passage 9e communicate with the first clutch balance chamber 1b and the fourth main oil passage 9a. The oil sequentially passes through the first oil inlet passage 40b arranged on the oil passage shaft 40, the oil passage 41b arranged on the first cylinder liner structure 41, the first connecting oil passage 9m arranged on the input shaft 9, the first main The oil passage 9c and the first piston oil passage 9d enter the first clutch piston cavity 1a belonging to the first clutch structure 1, and the oil is supplied with pressure to make the friction plate and the steel plate axially displaced to a mutual compression state, Achieve clutch engagement. In addition, the oil sequentially passes through the fourth oil inlet passage 40a arranged on the oil passage shaft 40, the first cylinder liner oil passage 41a arranged on the first cylinder liner structure 41, and the fourth oil passage arranged on the input shaft 9. It connects the oil passage 9r, the fourth main oil passage 9a, and the first balance oil passage 9e, and enters the first clutch balance chamber 1b to provide the first clutch balance chamber 1b with the oil required for its work to realize its oil demand.

In addition, the above-mentioned second clutch oil circuit includes the second clutch piston cavity 3a formed between the second clutch piston cavity cover and the second clutch piston rod body, and the second clutch balance cavity cover and the second clutch piston rod body. The second clutch balance chamber 3b between them, and the second clutch piston chamber 3a communicates with the second main oil passage 9h, and the second clutch balance chamber 3b communicates with the fourth main oil passage 9a. Moreover, the main oil inlet oil passage structure also includes a second piston oil passage 9i and a second balance oil passage 9g respectively opened in the radial direction of the input shaft 9, and the second piston oil passage 9i communicates with the second clutch piston chamber 3a and the second main oil passage. The oil passage 9h and the second balance oil passage 9e communicate with the second clutch balance chamber 3b and the fourth main oil passage 9a. The oil sequentially passes through the second oil inlet passage 40c arranged on the oil passage shaft 40, the oil passage 41c arranged on the first cylinder liner structure 41, the second connecting oil passage 9n arranged on the input shaft 9, the second main The oil passage 9h and the second piston oil passage 9i enter the second clutch piston cavity 3a belonging to the second clutch structure 3, and the oil is supplied with pressure to make the friction plate and the steel plate axially displaced to a mutual compression state, Achieve clutch engagement. In addition, the oil sequentially passes through the fourth oil inlet passage 40a arranged on the oil passage shaft 40, the first cylinder liner oil passage 41a arranged on the first cylinder liner structure 41, and the fourth oil passage arranged on the input shaft 9. Connect the oil passage 9r, the fourth main oil passage 9a, and the second balance oil passage 9g, and enter the second clutch balance chamber 3b to provide the second clutch balance chamber 3b with the oil required for its work to meet its oil demand.

In addition, the above-mentioned third clutch oil circuit includes a third clutch piston chamber 5a formed between the third clutch piston chamber cover and the third clutch piston rod body, and a third clutch piston chamber 5a formed between the third clutch balance chamber cover and the third clutch piston rod body. The third clutch balance chamber 5b, and the third clutch piston chamber 5a communicates with the third main oil passage 9j, and the third clutch balance chamber 5b communicates with the fourth main oil passage 9a. Moreover, the main oil inlet oil passage structure also includes a third piston oil passage 9k and a third balance oil passage respectively opened in the radial direction of the input shaft 9, and the third piston oil passage 9k communicates with the third clutch piston chamber 5a and the third main oil passage. The third balance oil passage communicates with the third clutch balance chamber 5b and the fourth main oil passage 9a, and the third balance oil passage communicates with the second balance oil passage, which can simplify the structure of the oil passage. The oil sequentially passes through the third oil inlet passage 40d arranged on the oil passage shaft 40, the oil passage 41d arranged on the first cylinder liner structure 41, the third connecting oil passage 9p arranged on the input shaft 9, the third main oil passage The oil passage 9j and the third piston oil passage 9k enter the third clutch piston chamber 5a belonging to the third clutch structure 5, and the oil is supplied with pressure, so that the friction plate and the steel plate produce axial displacement to a mutual compression state, Achieve clutch engagement. In addition, the oil sequentially passes through the fourth oil inlet passage 40a arranged on the oil passage shaft 40, the first cylinder liner oil passage 41a arranged on the first cylinder liner structure 41, and the fourth oil passage arranged on the input shaft 9. It connects the oil passage 9r, the fourth main oil passage 9a, and the third balance oil passage 9g, and enters the third clutch balance chamber 5b to provide the third clutch balance chamber 5b with the oil required for its work to realize its oil demand.

Further, the above-mentioned main oil inlet oil passage structure also includes a second piston auxiliary channel 8b, a second balance auxiliary channel 8a, a third piston auxiliary channel 8c, and a third balance auxiliary channel respectively opened in the radial direction of the second sun gear 81 . And the second piston auxiliary passage 8b communicates with the second clutch piston chamber 3a and the second piston oil passage 9i, the second balance auxiliary passage 8a communicates with the second clutch balance chamber 3b and the second balance oil passage 9g; the third piston auxiliary passage 8c communicates with The third clutch piston chamber 5a and the third piston oil passage 9k, the third balance auxiliary passage communicates with the third clutch balance chamber 5b and the third balance oil passage. By setting the auxiliary oil passage on the second sun gear 81, the axial dimension of the input shaft can be further reduced, thereby reducing the axial dimension of the entire structure and making the entire structure more compact. Moreover, the third balance auxiliary channel communicates with the second balance auxiliary channel 8a, and the third balance oil channel overlaps with the second balance oil channel, so that the number of oil channels can be reduced and the oil channel structure can be simplified.

Moreover, the main oil inlet oil passage structure also includes the second piston transition channel 8e, the second balance transition channel 8d, and the third piston transition channel respectively opened in the radial direction of the second planet carrier 85 (referring to the radial direction along the input shaft). 8h, the third balanced transition channel 8f. The second piston transition channel 8e communicates with the second clutch piston chamber 3a and the second piston auxiliary channel 8b, the second balance transition channel 8d communicates with the second clutch balance chamber 3b and the second balance auxiliary channel 8a; the third piston transition channel 8h communicates with the second The three clutch piston chambers 5a and the third piston auxiliary passage 8c, and the third balance transition passage 8f communicate with the third clutch balance chamber 5b and the third balance auxiliary passage. By setting the auxiliary oil passage on the second planet carrier 85, the axial dimension of the input shaft can be further reduced, thereby reducing the axial dimension of the entire structure and making the entire structure more compact. Moreover, the third balance transition channel 8f communicates with the second balance transition channel 8d through the fourth auxiliary transition channel 8g, and the third balance auxiliary channel overlaps with the second balance auxiliary channel, so that the number of oil passages can be reduced and the structure of the oil passage can be reduced. .

Further, the main oil inlet oil passage structure also includes a second cylinder liner structure 98 arranged on the second sun gear 81, and the third bearing 94 is located inside the second cylinder liner structure 98 (away from the first planetary row structure and close to the second One side of the row wheel), and a plurality of second sealing rings 96 arranged on the input shaft 9 . And the second cylinder liner structure 98 corresponds to the input shaft 9, the second sealing ring 96 is in close contact with the second cylinder liner structure 98, the second piston auxiliary passage, the second balance auxiliary passage, the third piston auxiliary passage, the third balance auxiliary passage The passages are separated between the two second sealing rings 98 to provide good sealing for each oil passage. Moreover, a plurality of second cylinder liner oil passages (98a, 98b, 98c) are opened on the second cylinder liner structure 98, between the second piston auxiliary passage and the second piston transition passage, between the second balance auxiliary passage and the second balance Between the transition passages, between the third piston auxiliary passage and the third piston transition passage, between the third balance auxiliary passage and the third balance transition passage are connected through a second cylinder liner oil passage, which facilitates passage through the second cylinder liner Structure 98 provides a good seal.

Further, the main oil inlet oil passage structure also includes a third cylinder liner structure 97 arranged on the second planetary carrier 85, and the second bearing 93 is located outside the third cylinder liner structure 97 (away from the second planetary carrier 85 and close to the first planet row structure), and a plurality of third sealing rings 95 arranged on the second sun gear 81; The structure 97 is in close contact, and the second piston transition channel, the second balance transition channel, the third piston transition channel, and the third balance transition channel are respectively separated between the two third sealing rings 95 to provide good sealing for each oil channel . Moreover, a plurality of third cylinder liner oil passages (97a, 97b) are opened on the third cylinder liner structure 97, between the second clutch piston chamber and the second piston transition passage, between the second clutch balance chamber and the second balance transition passage between the third clutch piston chamber and the third piston transition passage, and between the third clutch balance chamber and the third balance transition passage through a third cylinder liner oil passage, which is convenient to pass through the third cylinder liner structure 97 Provides a good seal.

In addition, the above-mentioned first clutch oil circuit includes a first clutch lubricating cooling cavity formed between the first clutch outer hub and the first clutch inner hub, and a second clutch opening on the first clutch inner hub and corresponding to the first clutch main body. An inner hub lubricating cooling channel 21a, and the first inner hub lubricating cooling channel 21a communicates with the fourth main oil channel 9a through the first clutch lubricating cooling cavity. Moreover, the above-mentioned main oil inlet passage structure also includes a fifth connecting oil passage 9f radially opened on the input shaft 9, and the fifth connecting oil passage 9f communicates with the fourth main oil passage 9a and the first clutch lubricating and cooling chamber. The oil sequentially passes through the fourth oil inlet passage 40a arranged on the oil passage shaft 40, the first cylinder liner oil passage 41a arranged on the first cylinder liner structure 41, and the oil passage fourth connection arranged on the input shaft 9. The oil passage 9r, the fourth main oil passage 9a, the fifth connecting oil passage 9f, the first inner hub lubricating and cooling passage 21a of the oil passage arranged on the first clutch structure 1, enter the friction plate and steel plate area of the first clutch main body , so as to realize the lubrication and cooling of the first clutch structure.

Moreover, the above-mentioned second clutch oil circuit includes a second inner hub lubricating and cooling channel 22a opened on the inner hub of the second clutch and corresponding to the second clutch main body, and a first outer hub lubricating and cooling channel 22a opened on the outer hub of the first clutch. channel (the outer hub of the first clutch is set as the inner hub of the second clutch, so the first outer hub lubricating cooling channel is also the second inner hub lubricating cooling channel 22a), and the second inner hub lubricating cooling channel passes through the first outer hub lubricating cooling channel The cooling channel, the first inner hub lubricating cooling channel 21a and the first clutch lubricating cooling cavity communicate with the fourth main oil channel 9a. After cooling the first clutch structure 1, the oil passes through the first outer hub lubricating and cooling channel (that is, the second inner hub lubricating and cooling channel) 22a arranged on the first clutch structure 1, and then enters the friction plate of the second clutch body. And the steel plate area, so as to realize the lubrication and cooling of the second clutch structure 3.

Moreover, the above-mentioned third clutch oil circuit includes a third inner hub lubricating and cooling passage 58a opened on the third clutch inner hub and corresponding to the third clutch main body, and the third inner hub lubricating and cooling passage 58a is lubricated and cooled by the first outer hub. The passage 22a, the first inner hub lubricating and cooling passage 21a and the first clutch lubricating and cooling chamber communicate with the fourth main oil passage 9a. After cooling the first clutch structure 1, the oil passes through the first outer hub lubrication cooling passage 22a arranged on the first clutch structure 1 and the third inner hub lubrication cooling passage 58a on the third clutch structure 5, and then enters the first clutch structure 5. The friction plate and steel plate area of the three-clutch main body, so as to realize the lubrication and cooling of the third clutch structure 5.

In addition, the above-mentioned main oil inlet oil passage structure also includes planetary row lubrication passages 9b opened in the radial direction of the input shaft 9, and the planetary row lubrication passages 9b communicate with the fourth main oil passage 9a and the first planetary row structure, which can be used for the first bearing Structures such as (91, 92), the first gear needle roller 74, the first sun gear, and the first planetary gear provide lubrication and cooling. That is to say, the fourth main oil passage 9a has a plurality of branch oil passages at the same time, and one of the branch oil passages is an oil passage for providing the cooling oil required for the first planetary row structure 7 and the bearing during work, and its second branch oil passage is for the first planetary row structure 7 and the bearing. A clutch balance chamber 1b provides the oil passage for the required oil during work, and its three-splitting oil passage is an oil passage for the second clutch balance chamber 3b and the third clutch balance chamber 5b to provide the oil required for work, and its four-splitting oil passage The oil passage is an oil passage that provides cooling and lubrication for the first clutch main body, the second clutch main body and the third clutch main body.

In addition, the above-mentioned first main oil passage 9c, second main oil passage 9h, third main oil passage 9j and fourth main oil passage 9a are all set as blind holes with one end open and one end closed, and the first main oil passage 9c, the second main oil passage Open ends of the second main oil passage 9h, the third main oil passage 9j and the fourth main oil passage 9a are all interference-sealed by sealing balls (101, 102, 103, 104). The input shaft 9 is the main oil channel mechanism that provides oil for the multi-clutch module, including oil channels (9a, 9c, 9h, 9j) arranged in the axial direction, and oil channels (9r, 9m, 9n, 9p, 9b, 9d, 9e, 9f, 9g, 9i, 9k), the sealing balls (101, 102, 103, 104) are respectively pressed into the end faces of the four axial oil passages, and the outer diameters of the sealing balls and the oil passages are designed to be reasonable The tight fit makes it able to withstand a certain amount of oil pressure without falling out, so that the axial oil passage forms an axially closed oil passage, and its radially arranged oil passages can have different flow rates according to the different oil passages of the multi-clutch module Requires placement of at least one quantity.

In addition, the above-mentioned main oil inlet passage structure also includes a fifth main oil passage 10a opened on the housing structure 10, through which the brake structure 6 is supplied with oil. Moreover, the brake oil circuit includes a brake piston cavity 6a formed between the brake piston cylinder 66 and the brake piston rod 65, and a piston set on the brake piston cylinder 66 for communicating with the brake piston cavity 6a and the fifth main oil passage 10a. Cylinder oil passage 66a. The oil sequentially passes through the fifth main oil passage 10a arranged on the housing structure 10, and the piston cylinder oil passage 66a enters the brake piston chamber 6a and has pressure supply, so that the friction plate and the steel plate produce axial displacement to a mutual compression state , to achieve brake engagement.

Moreover, the above-mentioned brake oil circuit also includes a brake lubricating and cooling channel 69a opened on the inner hub of the brake and corresponding to the main body of the brake, a second outer hub lubricating and cooling channel 39b opened on the second clutch outer hub, and opened on the third hub. The third outer hub lubricating and cooling passage 39a on the clutch outer hub, and the ring gear lubricating and cooling passage 86a opened on the second ring gear; and the brake piston chamber 6a communicates with the fifth main oil passage 10a, and the brake lubricating and cooling passage 69a passes through The ring gear lubrication cooling passage 86a, the second outer hub lubrication cooling passage 39b, the third outer hub lubrication cooling passage 39a communicate with the third inner hub lubrication cooling passage 58a and the second inner hub lubrication cooling passage 22a. After the oil fluid lubricates and cools the second brake structure 3 and the third brake structure 5, the oil fluid passes through the third outer hub lubrication cooling passage 39a, the second outer hub lubrication cooling passage 39b, the ring gear lubrication cooling passage 86a, and the brake The lubricating and cooling channel 69a enters the friction plate and steel plate area of the brake main body, so as to realize the lubricating and cooling of the brake structure 6 .

In addition, the utility model also proposes an electronically controlled hydraulic automatic transmission, including the above-mentioned clutch oil supply system. The multi-clutch module of the electronically controlled hydraulic automatic transmission realizes the modular integrated design of three wet clutch structures and one brake structure through a reasonable combination of inner and outer nested structures, making the occupied axial dimension shorter and the structure It is compact and more conducive to the overall layout of the electronically controlled hydraulic automatic transmission; moreover, the multi-clutch module of the electronically controlled hydraulic automatic transmission has a new type of clutch oil supply system, which can respectively realize three clutch structures and one brake structure. Piston cavity, balance cavity and lubricating and cooling oil supply; moreover, the multi-clutch module of the electronically controlled hydraulic automatic transmission has a short axial dimension and a compact overall structure, so it can be flexibly applied to six-speed electronically controlled hydraulic automatic transmissions; in addition , on the basis of the multi-clutch module, by adding a planetary row at its front or rear end, and adding a brake or one-way clutch at its radially outer end, more gears such as eighth or ninth gears can be electronically controlled application in hydraulic automatic transmissions; moreover, the multi-clutch module structure of the electronically controlled hydraulic automatic The clutch oil supply system of the multi-clutch module of the hydraulic automatic transmission makes full use of the structural advantages of the multi-clutch module itself, and arranges the piston chamber, balance chamber and different oil passages required for lubrication and cooling. The multi-clutch module itself does not need to increase The extra oil passage component structure reduces the manufacturing cost; moreover, the clutch oil supply system of the multi-clutch module of the electronically controlled hydraulic automatic transmission utilizes one input shaft, and by arranging multiple axial oil passages and radial oil passages , form multiple independent oil passages, realize the demand of multi-clutch module multi-channel oil supply, and the input shaft is a slender shaft of the common type in vehicle transmission, the structure is easy to realize, the process is simple, and the reduction of manufacturing cost.

In addition, it should be understood that in this embodiment, the terms "lower", "upper", "front", "rear", "left", "right", "inner", "outer", "top" , "bottom", "one side", "the other side", "one end", "the other end", etc. indicate the positional relationship based on the positional relationship shown in the drawings; "first", "second" , "third", "fourth", "fifth" and other terms are used to distinguish different structural components. These terms are only for the convenience of describing the utility model and simplifying the description, and cannot be construed as limiting the utility model.

The various technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the various technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be interpreted as a limitation on the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (23)

1. A multi-clutch module, characterized in that it comprises a housing structure, an input shaft arranged in the housing structure, a first planetary row structure, a second planetary row structure, a first clutch structure, and a second clutch structure , the third clutch structure and brake structure; The first planetary row structure and the second planetary row structure are respectively arranged at both ends of the input shaft, and the first clutch structure, the second clutch structure, the third clutch structure and the brake structure are arranged at the first planetary row structure and the second planetary row structure, and the first clutch structure is connected to the second planetary row structure and the input shaft, and the second clutch structure is connected to the second planetary row structure and the On the input shaft, the third clutch structure is connected to the first planetary row structure and the input shaft, and the brake structure is connected to the second planetary row structure and the housing structure; The first clutch structure is located radially outside of the input shaft, the second clutch structure and the third clutch structure are located side by side outside the first clutch structure, and the brake structure is located between the second clutch structure and the third clutch structure Three-clutch structure outside. 2. The multi-clutch module according to claim 1, wherein the first planetary row structure includes a first sun gear and a first planetary carrier arranged at one end of the input shaft, and arranged on the first planetary a first planetary gear mounted on the frame and meshed with the first sun gear, and a first ring gear meshed with the first planetary gear; The second planet row structure includes a second sun gear and a second planet carrier arranged at the other end of the input shaft, and a second planet arranged on the second planet carrier and meshed with the second sun gear wheel, and a second ring gear meshing with said second planetary gear; The first clutch structure is connected to the input shaft and the second sun gear, the second clutch structure is connected to the input shaft and the second planet carrier, and the third clutch structure is connected to the first The ring gear and the second planet carrier, the brake structure is connected to the housing structure and the second sun gear, or connected to the housing structure and the second planet carrier, and the second ring gear is separated between the second clutch structure and the brake structure. 3. The multi-clutch module according to claim 2, wherein the first clutch structure, the second clutch structure, the third clutch structure and the brake structure are all configured as multi-plate wet clutches . 4. The multi-clutch module according to claim 3, wherein the first clutch structure includes a first clutch housing disposed on the input shaft and the second sun gear, and a first clutch housing disposed on the first The first clutch main body and the first clutch piston structure in the clutch housing; and the first clutch main body is connected to the first clutch housing, and one end of the first clutch piston structure corresponds to the first clutch main body , the other end is connected to the input shaft; the second clutch structure includes a second clutch housing disposed on the input shaft and the second planet carrier, and a second clutch body and a second clutch piston structure disposed in the second clutch housing, and The second clutch housing is located outside the first clutch housing; and the second clutch main body is connected to the second clutch housing, and one end of the second clutch piston structure is connected to the second clutch main body Correspondingly, the other end is connected to the second planet carrier; The third clutch structure includes a third clutch housing disposed on the first ring gear and the second planet carrier, and a third clutch main body and a third clutch piston structure disposed in the third clutch housing , the third clutch housing and the second clutch housing are arranged side by side; and the third clutch main body is connected to the third clutch housing, and one end of the third clutch piston structure is connected to the third The main body of the clutch is corresponding, and the other end is connected with the second planet carrier; The brake structure includes a brake housing arranged on the housing structure and the second planetary row structure, and a brake main body and a brake piston structure arranged in the brake housing, and the brake housing passes through the first The second ring gear is separated from the outside of the second clutch housing and the third clutch housing; and the brake main body is connected to the brake housing, one end of the brake piston structure corresponds to the brake main body, and the other One end is connected with the shell structure. 5. The multi-clutch module of claim 4, wherein the first clutch housing includes a first clutch inner hub connected to the second sun gear, and connected to the input shaft and positioned at The first clutch outer hub on the outside of the first clutch inner hub; the first clutch main body includes a plurality of first clutch friction plates arranged on the first clutch inner hub, and arranged on the first clutch outer hub A plurality of first clutch steel plates on the hub, and the plurality of first clutch friction plates are arranged at intervals between the plurality of first clutch steel plates; The second clutch housing includes a second clutch inner hub connected to the input shaft, and a second clutch outer hub connected to the second planet carrier and located outside the second clutch inner hub, the The second clutch inner hub is located outside or on the same side as the first clutch outer hub; the second clutch main body includes a plurality of second clutch friction plates arranged on the second clutch inner hub, and arranged on the first clutch inner hub. A plurality of second clutch steel plates on the outer hub of the second clutch, and the plurality of second clutch friction plates are arranged at intervals between the plurality of second clutch steel plates; The third clutch housing includes a third clutch inner hub connected to the first ring gear, and a third clutch outer hub connected to the second planet carrier and located outside the third clutch inner hub, The third clutch inner hub is located on the outside or on the same side of the first clutch outer hub; the third clutch main body includes a plurality of third clutch friction plates arranged on the third clutch inner hub, and arranged on A plurality of third clutch steel plates on the outer hub of the third clutch, and the plurality of third clutch friction plates are arranged at intervals between the plurality of third clutch steel plates; The brake housing includes a brake inner hub connected to the second planet carrier or the second sun gear, and a brake outer hub connected to the housing structure and located outside the brake inner hub, the The brake inner hub is separated from the outer side of the third clutch outer hub through the second ring gear; the brake main body includes a plurality of brake friction plates arranged on the brake inner hub, and a plurality of brake friction plates arranged on the brake outer hub There are multiple pieces of brake steel plates, and the multiple pieces of the brake friction plates are arranged at intervals between the multiple pieces of the brake steel plates. 6. The multi-clutch module according to claim 5, wherein the first clutch outer hub is simultaneously configured as the second clutch inner hub, and the second clutch outer hub is simultaneously configured as the third clutch hub The outer hub, the first ring gear is also set as the third clutch inner hub, and the housing structure is also set as the brake outer hub. 7. The multi-clutch module according to claim 5, wherein the first clutch piston structure comprises a first clutch piston rod body disposed between the first clutch inner hub and the first clutch outer hub, the One end of the first clutch piston rod body corresponds to the first clutch main body, and the other end is sealingly connected to the input shaft; the first clutch piston structure also includes a The first clutch piston chamber cover and the first clutch balance chamber cover between the inner hub and the first clutch outer hub, and the first clutch piston chamber cover and the first clutch balance chamber cover are respectively sealed and connected to the first clutch Both sides of the piston rod body, and the first return spring group connected between the first clutch piston rod body and the first clutch balance chamber cover; The second clutch piston structure includes a second clutch piston rod body arranged between the second clutch inner hub and the second clutch outer hub, one end of the second clutch piston rod body corresponds to the second clutch main body, and the other One end is sealingly connected with the second planet carrier; the second clutch piston structure also includes a second clutch connected to the second planet carrier and located between the second clutch inner hub and the second clutch outer hub. The clutch piston chamber cover and the second clutch balance chamber cover, and the second clutch piston chamber cover and the second clutch balance chamber cover are respectively sealed and connected to both sides of the second clutch piston rod body, and connected to the second clutch The second return spring group between the piston rod body and the second clutch balance chamber cover; The third clutch piston structure includes a third clutch piston rod body arranged between the third clutch inner hub and the third clutch outer hub, and one end of the third clutch piston rod body passes through the second clutch body and the second clutch body. The main body of the third clutch corresponds, and the other end is in sealing connection with the second planetary carrier; The third clutch piston chamber cover and the third clutch balance chamber cover between the clutch outer hubs, and the third clutch piston chamber cover and the third clutch balance chamber cover are respectively sealed and connected to both sides of the third clutch piston rod body, And a third return spring group connected between the third clutch piston rod body and the third clutch balance chamber cover; The brake piston structure also includes a brake piston cylinder connected to the housing structure, a brake piston rod disposed in the brake piston cylinder, and a brake piston rod disposed on the brake piston rod and connected to the housing structure A brake return spring set, one end of the brake piston rod is connected to the brake piston cylinder, and the other end corresponds to the brake main body. 8. The multi-clutch module according to claim 7, wherein the third clutch balance chamber cover is also set as the second clutch piston chamber cover, and the third clutch outer hub is also set as the second clutch outer hub. Triple clutch piston chamber cover. 9. The multi-clutch module according to claim 7, wherein the second sun gear comprises a second sun shaft portion arranged on the input shaft, and a second sun shaft portion connected to the second sun shaft portion. a sun gear body, the second sun shaft portion is close to the first planetary row structure, and the second planetary gear meshes with the second sun gear body; The second planet carrier includes a planet carrier axial portion sleeved on the second sun shaft portion, and a planet carrier radial portion vertically connected to the planet carrier axial portion, and the second planetary gear is set On the radial part of the planet carrier, the first clutch structure, the second clutch structure and the third clutch structure are arranged between the first planet row structure and the radial part of the planet carrier; the first The clutch outer hub is arranged close to the first planetary row structure, the first clutch inner hub is connected to the end of the second sun shaft; the third clutch outer hub is connected to the second sun shaft, Both the second clutch piston structure and the third clutch piston structure are connected to the axial portion of the planet carrier. 10. A clutch oil supply system, characterized in that it comprises the multi-clutch module according to any one of claims 7-9, and a clutch oil circuit structure arranged in the multi-clutch module; The clutch oil passage structure includes a main oil inlet oil passage structure, and a first clutch oil passage, a second clutch oil passage, a third clutch oil passage and a brake oil passage respectively communicated with the main oil inlet oil passage structure, and The first clutch oil passage corresponds to the first clutch structure, the second clutch oil passage corresponds to the second clutch structure, the third clutch oil passage corresponds to the third clutch structure, and the brake oil The road corresponds to the structure of the brake. 11. The clutch oil supply system according to claim 10, characterized in that, the main oil inlet passage structure includes a first main oil passage, a second main oil passage respectively axially opened in the input shaft and independent of each other. oil passage, third main oil passage and fourth main oil passage; The first clutch oil circuit includes a first clutch piston cavity formed between the first clutch piston cavity cover and the first clutch piston rod body, and a first clutch balance cavity formed between the first clutch balance cavity cover and the first clutch piston rod body. A first clutch balance chamber between the clutch piston rods, and the first clutch piston chamber communicates with the first main oil passage, and the first clutch balance chamber communicates with the fourth main oil passage; The second clutch oil circuit includes a second clutch piston cavity formed between the second clutch piston cavity cover and the second clutch piston rod body, and a second clutch balance cavity cover formed between the second clutch balance cavity cover and the first clutch piston cavity. A second clutch balance chamber between the two clutch piston rods, and the second clutch piston chamber communicates with the second main oil passage, and the second clutch balance chamber communicates with the fourth main oil passage; The third clutch oil circuit includes a third clutch piston cavity formed between the third clutch piston cavity cover and the third clutch piston rod body, and a third clutch balance cavity cover formed between the third clutch balance cavity cover and the first clutch piston cavity. The third clutch balance chamber between the three clutch piston rods, and the third clutch piston chamber communicates with the third main oil passage, and the third clutch balance chamber communicates with the fourth main oil passage. 12. The clutch oil supply system according to claim 11, characterized in that, the main oil inlet oil passage structure further comprises an oil passage shaft connected to the input shaft, and respectively opened on the radial direction of the oil passage The first oil inlet passage, the second oil inlet passage, the third oil inlet passage and the fourth oil inlet passage; It also includes a first connecting oil passage, a second connecting oil passage, a third connecting oil passage and a fourth connecting oil passage respectively opened in the radial direction of the input shaft, and the first oil inlet passage passes through the first connecting oil passage The oil passage communicates with the first main oil passage, the second oil inlet passage communicates with the second main oil passage through the second connecting oil passage, and the third oil inlet passage communicates with the second main oil passage through the third connection The oil passage communicates with the third main oil passage, and the fourth oil inlet passage communicates with the fourth main oil passage through the fourth connecting oil passage. 13. The clutch oil supply system according to claim 12, wherein the main oil inlet passage structure further comprises a first cylinder liner structure arranged on the oil passage shaft, and a first cylinder liner structure arranged on the input shaft a plurality of first sealing rings; and the first cylinder liner structure corresponds to the input shaft, the first sealing ring is in close contact with the first cylinder liner structure, the first connecting oil passage, the second The connecting oil passage, the third connecting oil passage and the fourth connecting oil passage are separated between the two first sealing rings; The first cylinder liner structure is provided with a plurality of first cylinder liner oil passages, between the first oil inlet passage and the first connecting oil passage, between the second oil inlet passage and the second connecting oil passage , The third oil inlet passage and the third connecting oil passage, and the fourth oil inlet passage and the fourth connecting oil passage are all communicated through one of the first cylinder liner oil passages. 14. The clutch oil supply system according to claim 12, characterized in that, the main oil inlet oil passage structure further comprises a first piston oil passage, a first balance oil passage, The second piston oil passage, the second balance oil passage, the third piston oil passage, the third balance oil passage; The first piston oil passage communicates with the first clutch piston cavity and the first main oil passage, and the first balance oil passage communicates with the first clutch balance chamber and the fourth main oil passage; the second The piston oil passage communicates with the second clutch piston chamber and the second main oil passage, and the second balance oil passage communicates with the second clutch balance chamber and the fourth main oil passage; the third piston oil passage communicates with The third clutch piston chamber and the third main oil passage, the third balance oil passage communicates with the third clutch balance chamber and the fourth main oil passage, and the third balance oil passage is connected to the first The two balance oil passages are connected. 15. The clutch oil supply system according to claim 14, characterized in that, the main oil inlet oil passage structure further includes a second piston auxiliary channel, a second balance auxiliary channel respectively opened in the radial direction of the second sun gear. channel, the third piston auxiliary channel, the third balance auxiliary channel; The second piston auxiliary passage communicates with the second clutch piston chamber and the second piston oil passage, and the second balance auxiliary passage communicates with the second clutch balance chamber and the second balance oil passage; the third The auxiliary piston passage communicates with the third clutch piston chamber and the third piston oil passage, the third balance auxiliary passage communicates with the third clutch balance chamber and the third balance oil passage, and the third balance auxiliary passage It communicates with the second balance auxiliary passage, and the third balance oil passage coincides with the second balance oil passage. 16. The clutch oil supply system according to claim 15, characterized in that, the main oil inlet oil passage structure further includes a second piston transition channel, a second balance transition channel respectively opened in the radial direction of the second planet carrier. Channel, the third piston transition channel, the third balance transition channel; The second piston transition channel communicates with the second clutch piston cavity and the second piston auxiliary channel, and the second balance transition channel communicates with the second clutch balance cavity and the second balance auxiliary channel; the third The piston transition channel communicates with the third clutch piston cavity and the third piston auxiliary channel, and the third balance transition channel communicates with the third clutch balance cavity and the third balance auxiliary channel; and the third balance transition channel In communication with the second balanced transition channel, the third balanced auxiliary channel coincides with the second balanced auxiliary channel. 17. The clutch oil supply system according to claim 16, characterized in that, the main oil inlet oil circuit structure further includes a second cylinder liner structure arranged on the second sun gear, and a second cylinder liner structure arranged on the input Multiple second sealing rings on the shaft; and the second cylinder liner structure corresponds to the input shaft, the second sealing ring is in close contact with the second cylinder liner structure, the second piston auxiliary passage, the first The second balance auxiliary channel, the third piston auxiliary channel, and the third balance auxiliary channel are respectively arranged between the two second sealing rings; The second cylinder liner structure is provided with a plurality of second cylinder liner oil passages, between the second piston auxiliary passage and the second piston transition passage, between the second balance auxiliary passage and the second balance transition passage, the third piston The auxiliary passage and the third piston transition passage, and the third balance auxiliary passage and the third balance transition passage are connected through one second cylinder liner oil passage. 18. The clutch oil supply system according to claim 16, characterized in that, the main oil inlet oil passage structure further comprises a third cylinder liner structure arranged on the second planet carrier, and a third cylinder liner structure arranged on the second planet carrier. Multiple third sealing rings on the second sun gear; and the third cylinder liner structure corresponds to the second sun gear, the third sealing ring is in close contact with the third cylinder liner structure, and the second piston The transition channel, the second balance transition channel, the third piston transition channel, and the third balance transition channel are separated between the two third sealing rings; The third cylinder liner structure is provided with a plurality of third cylinder liner oil passages, between the second clutch piston chamber and the second piston transition passage, between the second clutch balance chamber and the second balance transition passage, the first The three-clutch piston cavity and the third piston transition channel, and the third clutch balance cavity and the third balance transition channel are in corresponding communication through one third cylinder liner oil channel. 19. The clutch oil supply system according to any one of claims 11-18, characterized in that, the main oil inlet oil passage structure further includes planetary row lubrication passages opened in the radial direction of the input shaft, the The planetary row lubrication channel communicates with the fourth main oil gallery and the first planetary row structure. 20. The clutch oil supply system according to any one of claims 11-18, characterized in that, the first main oil passage, the second main oil passage, the third main oil passage and the fourth main oil passage are all set It is a blind hole with one end open and one end closed, and the open ends of the first main oil passage, the second main oil passage, the third main oil passage and the fourth main oil passage are all interference-sealed by sealing balls. 21. The clutch oil supply system according to any one of claims 11-18, characterized in that, the first clutch oil circuit comprises a second clutch formed between the first clutch outer hub and the first clutch inner hub A clutch lubricating and cooling cavity, and a first inner hub lubricating and cooling channel opened on the first clutch inner hub and corresponding to the first clutch main body, and the first inner hub lubricating and cooling channel passes through the first The clutch lubricating cooling cavity communicates with the fourth main oil passage; The second clutch oil circuit includes a second inner hub lubricating and cooling passage opened on the second clutch inner hub and corresponding to the second clutch main body, and a first inner hub lubricating and cooling passage opened on the first clutch outer hub. The outer hub lubricating cooling channel, and the second inner hub lubricating cooling channel communicates with the fourth main oil channel through the first outer hub lubricating cooling channel, the first inner hub lubricating cooling channel and the first clutch lubricating cooling cavity ; The third clutch oil passage includes a third inner hub lubricating and cooling passage opened on the third clutch inner hub and corresponding to the third clutch main body, and the third inner hub lubricating and cooling passage passes through the third inner hub lubricating and cooling passage. An outer hub lubricating and cooling passage, a first inner hub lubricating and cooling passage and a first clutch lubricating and cooling cavity communicate with the fourth main oil passage. 22. The clutch oil supply system according to claim 21, characterized in that, the main oil inlet oil passage structure further comprises a fifth main oil passage opened on the housing structure; The brake oil circuit includes a brake piston cavity formed between the brake piston cylinder and the brake piston rod, a brake lubricating and cooling passage opened on the brake inner hub and corresponding to the brake main body, opened in the first The second outer hub lubricating and cooling channel on the second clutch outer hub, the third outer hub lubricating and cooling channel opened on the third clutch outer hub, and the ring gear lubricating and cooling channel opened on the second ring gear; And the brake piston cavity communicates with the fifth main oil passage, and the brake lubrication cooling passage passes through the ring gear lubrication cooling passage, the second outer hub lubrication cooling passage, the third outer hub lubrication cooling passage and the first The three inner hub lubricating and cooling passages communicate with the second inner hub lubricating and cooling passage. 23. An electronically controlled hydraulic automatic transmission, characterized by comprising the clutch oil supply system according to any one of claims 10-22.