Wet friction plate and device for automatic transmission of electric vehicle

Abstract

The utility model discloses a wet-type friction plate and device for an automatic transmission of an electric automobile, and relates to the technical field of transmissions of electric automobiles, the wet-type friction plate comprises a plate body, a tooth groove is arranged at the upper end of the plate body, a plurality of arc grooves are arranged on the outer surface of the plate body, a plurality of main friction arc plates are fixedly arranged at the upper end of the plate body, and a plurality of auxiliary friction arc plates are fixedly arranged at the lower end of the plate body. According to the wet-type friction plate and device for the automatic transmission of the electric automobile, the friction plate is reasonable in design and reliable in use, the contact area is increased through combined use of two friction structures, the friction plate is not prone to deformation, the friction plate is not prone to deformation, the friction plate is not prone to deformation, and the service life of the friction plate is prolonged. And the height difference exists in the friction structure, so that the overall friction capacity is further improved, the wet friction plate is conveniently installed on the device, the firmness after installation is high due to the six annularly-distributed bolts, and the using stability and convenience of the wet friction plate are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle transmissions, in particular to a wet friction plate and a device for an automatic transmission of an electric vehicle. Background Art

[0002] Wet friction plates for automatic transmissions in electric vehicles are one of the core components of automatic transmissions, equivalent to the heart of automatic transmissions. They mainly have functions such as clutch friction plate power transmission, hydraulic control, and TCU control. Wet friction plates are usually installed in the clutch and brake of automatic transmissions. Specifically, in the clutch part, wet friction plates are installed alternately with dual steel plates.

[0003] However, the prior art still has the following problems:

[0004] First, the wet friction plate used in the automatic transmission of electric vehicles in the prior art has a single friction structure on the surface of the friction plate. The wet friction plate used in the automatic transmission of electric vehicles generally has a single friction structure on the surface, which increases the loss of the friction structure and has a limited service life.

[0005] Secondly, the installation of wet friction plates for automatic transmissions of electric vehicles in the prior art is troublesome and has limited installation stability. Most wet friction plates are installed by welding, which will cause certain impacts on the welding points after the friction plates are subjected to continuous friction. Long-term use may lead to reduced strength of the connection, affecting the use effect.

[0006] In view of the above problems, the inventor proposes a wet friction plate and device for an automatic transmission of an electric vehicle to solve the above problems. Utility Model Content

[0007] In order to solve the problems that the friction plate has a single surface friction structure and is inconvenient to install and has limited installation stability; the utility model aims to provide a wet friction plate and device for an automatic transmission of an electric vehicle.

[0008] In order to solve the above technical problems, the utility model adopts the following technical scheme: a wet friction plate for an automatic transmission of an electric vehicle, comprising a disc body, a tooth groove is opened on the upper end of the disc body, a plurality of arc grooves are opened on the outer surface of the disc body, a plurality of main friction arc plates are fixedly provided on the upper end of the disc body, a plurality of auxiliary friction arc plates are fixedly provided on the upper end of the disc body, the upper ends of the main friction arc plates and the auxiliary friction arc plates are both roughened, the main friction arc plates and the auxiliary friction arc plates are alternately distributed, a plurality of reinforcing columns are fixedly provided on the upper end of the disc body, a reinforcing plate is commonly fixedly provided on the upper ends of two adjacent reinforcing columns, the two ends of the reinforcing plate are respectively fixedly connected to the main friction arc plates on both sides, nine main friction arc plates are provided, and the nine main friction arc plates are distributed in an annular array, nine auxiliary friction arc plates and nine reinforcing plates are provided, and the nine main friction arc plates and reinforcing plates are distributed in an annular array.

[0009] A device for wet friction plates for automatic transmissions of electric vehicles comprises a mounting plate, connecting blocks are fixedly provided on both sides of the outer surface of the mounting plate, two through-type mounting grooves are provided at the upper ends of the connecting blocks, a gear ring is fixedly provided at the upper end of the mounting plate, a plurality of connecting grooves are provided at the lower end of the mounting plate, a through groove is provided together with the upper ends of the gear ring and the mounting plate, and the outer surface of the gear ring cooperates with the gear grooves, a plurality of fixing grooves are provided at the upper end of the plate body, the positions of the fixing grooves and the connecting grooves correspond to each other up and down, a plurality of slots are provided at the upper end of the mounting plate, and the fixing grooves and the slots corresponding in position are commonly bolted and connected with fixing bolts, six fixing bolts are provided, and the six fixing bolts are distributed in a ring array.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model has reasonable design and reliable use. Through the combined use of two friction structures, the contact area is increased to increase the surface friction force. In addition, there is a height difference between the friction structures, which further improves the overall friction capacity and the use effect of the friction plate;

[0012] 2. The utility model is easy to install by using a device for installing and using a wet friction plate, and the six annularly distributed bolts make the installation firmer, further improving the stability and convenience of using the wet friction plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the wet friction plate of the utility model.

[0015] Figure 2 It is a schematic diagram of the explosion of the upper structure of the disk body of the utility model.

[0016] Figure 3 This is a schematic diagram of the friction plate and device structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the cross section of the installation plate and partial structure explosion of the utility model.

[0018] In the figure: 1, disc body; 11, tooth groove; 12, arc groove; 2, main friction arc plate; 21, auxiliary friction arc plate; 22, reinforcement column; 23, reinforcement plate; 3, mounting disc; 31, connecting block; 32, mounting groove; 33, fixing groove; 34, slot; 35, fixing bolt; 36, tooth ring; 37, through groove; 38, connecting groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Embodiment 1: Figure 1-4As shown, the utility model provides a wet friction plate for an automatic transmission of an electric vehicle, comprising a disc body 1, a tooth groove 11 is provided at the upper end of the disc body 1, a plurality of arc grooves 12 are provided on the outer surface of the disc body 1, a plurality of main friction arc plates 2 are fixedly provided at the upper end of the disc body 1, a plurality of auxiliary friction arc plates 21 are fixedly provided at the upper end of the disc body 1, a plurality of reinforcing columns 22 are fixedly provided at the upper end of the disc body 1, a reinforcing plate 23 is fixedly provided at the upper ends of two adjacent reinforcing columns 22, the height of the main friction arc plate 2 is twice that of the auxiliary friction arc plate 21, and the upper end of the reinforcing plate 23 is the same height as the upper end of the main friction arc plate 2, the two ends of the reinforcing plate 23 are respectively fixedly connected to the main friction arc plates 2 on both sides, and the main friction arc plates 2 There are nine main friction arc plates 2, and the nine main friction arc plates 2 are distributed in a circular array. There are nine auxiliary friction arc plates 21 and reinforcement plates 23, and the nine main friction arc plates 2 and reinforcement plates 23 are distributed in a circular array. The disc body 1 is the main body of the wet friction plate. The tooth groove 11 can be matched on the device. The arc groove 12 improves the strength of the outer surface, thereby improving the overall service life. The main friction arc plate 2 and the auxiliary friction arc plate 21 are used together to increase the contact area and thus increase the surface friction. There is a height difference in the friction structure, which further improves the overall friction capacity. The connection strength between the main friction arc plates 2 is further improved through the reinforcement plate 23 on the reinforcement column 22. The design is reasonable and the use is reliable.

[0021] A device for wet friction plates for automatic transmissions of electric vehicles, comprising a mounting plate 3, both sides of the outer surface of the mounting plate 3 are fixedly provided with connection blocks 31, the upper end of the connection blocks 31 is provided with two through-type mounting grooves 32, the upper end of the mounting plate 3 is fixedly provided with a gear ring 36, and the outer surface of the gear ring 36 is used in conjunction with the tooth groove 11, the upper end of the plate body 1 is provided with a plurality of fixing grooves 33, the upper end of the mounting plate 3 is provided with a plurality of slots 34, and the fixing grooves 33 and the slots 34 corresponding in position are bolted together to be connected with fixing bolts 35, six fixing bolts 35 are provided, and the six fixing bolts 35 are provided with a plurality of fixing grooves 33 and the slots 34 corresponding in position to each other. The bolts 35 are distributed in a circular array, and a wet friction plate can be installed on the mounting plate 3, and the mounting plate 3 is fixed in the transmission by connecting blocks 31 on both sides. The mounting grooves 32 can be inserted with bolts for fixing. The installation of the wet friction plate is specifically to insert the tooth grooves 11 on the plate body 1 into the gear ring 36, and then thread the fixing bolts 35 into the corresponding fixing grooves 33 and slots 34, so that the plate body 1 is firmly mounted on the mounting plate 3. The installation is convenient, and the six annularly distributed bolts make the installation more firm, further improving the stability and convenience of the wet friction plate.

[0022] The lower end of the mounting plate 3 is provided with a plurality of connecting grooves 38, and the upper ends of the gear ring 36 and the mounting plate 3 are provided with through grooves 37. The mounting plate 3 can be installed in the transmission through the connecting grooves 38 at the lower end, and the through grooves 37 prevent the friction plate from interfering with the operation of the friction plate during installation.

[0023] Working principle: the disc body 1 is the main body of the wet friction plate, the tooth groove 11 can be matched on the device, the arc groove 12 improves the strength of the outer surface, thereby increasing the overall service life, the main friction arc plate 2 and the auxiliary friction arc plate 21 are used together to increase the contact area and thus increase the surface friction, and there is a height difference in the friction structure, which further improves the overall friction capacity, and the connection strength between the main friction arc plates 2 is further improved by the reinforcing plate 23 on the reinforcing column 22, the design is reasonable and reliable;

[0024] The mounting plate 3 can be mounted with a wet friction plate, and the mounting plate 3 is fixedly mounted in the transmission through the connecting blocks 31 on both sides, and the mounting grooves 32 can be inserted with bolts for fixing. The installation of the wet friction plate is specifically as follows: the tooth grooves 11 on the plate body 1 are inserted into the gear ring 36, and then the fixing bolts 35 are threadedly inserted into the corresponding fixing grooves 33 and slots 34, so that the plate body 1 is firmly mounted on the mounting plate 3, which is convenient to install, and the six annularly distributed bolts make the installation firmer, further improving the stability and convenience of the wet friction plate;

[0025] The mounting plate 3 can be installed in the transmission through the connecting groove 38 at the lower end, and the through groove 37 does not interfere with the operation of the friction plate during installation.

[0026] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A wet friction plate for an automatic transmission of an electric vehicle, comprising a plate body (1), characterized in that: A plurality of main friction arc plates (2) are fixedly provided on the upper end of the disc body (1), a plurality of auxiliary friction arc plates (21) are fixedly provided on the upper end of the disc body (1), a plurality of reinforcing columns (22) are fixedly provided on the upper end of the disc body (1), a reinforcing plate (23) is fixedly provided on the upper ends of two adjacent reinforcing columns (22), and two ends of the reinforcing plate (23) are respectively fixedly connected to the main friction arc plates (2) on both sides.

2. A wet friction plate for an automatic transmission of an electric vehicle as claimed in claim 1, characterized in that: The upper end of the disc body (1) is provided with a tooth groove (11), and the outer surface of the disc body (1) is provided with a plurality of arc grooves (12).

3. A wet friction plate for an automatic transmission of an electric vehicle as claimed in claim 1, characterized in that: The main friction arc plates (2) are provided in nine numbers, and the nine main friction arc plates (2) are distributed in an annular array; the auxiliary friction arc plates (21) and the reinforcement plates (23) are provided in nine numbers, and the nine main friction arc plates (2) and the reinforcement plates (23) are distributed in an annular array.

4. A wet friction plate for an automatic transmission of an electric vehicle as claimed in claim 1, characterized in that: The height of the main friction arc plate (2) is twice that of the auxiliary friction arc plate (21), and the upper end of the reinforcing plate (23) is at the same height as the upper end of the main friction arc plate (2).

5. A device for wet friction plates for automatic transmissions of electric vehicles as claimed in any one of claims 1 to 4, characterized in that: The invention comprises a mounting plate (3), wherein a toothed ring (36) is fixedly provided at the upper end of the mounting plate (3), and the outer surface of the toothed ring (36) cooperates with the tooth groove (11), a plurality of fixing grooves (33) are provided at the upper end of the plate body (1), a plurality of slots (34) are provided at the upper end of the mounting plate (3), and the fixing grooves (33) and the slots (34) corresponding to each other are bolted together to be connected with fixing bolts (35).

6. The device for wet friction plates for automatic transmission of electric vehicles as claimed in claim 5, characterized in that: Connecting blocks (31) are fixedly provided on both sides of the outer surface of the mounting plate (3), and two through-type mounting grooves (32) are provided at the upper ends of the connecting blocks (31).

7. The device for wet friction plates for automatic transmission of electric vehicles as claimed in claim 5, characterized in that: A plurality of connection grooves (38) are formed at the lower end of the mounting plate (3), and a through groove (37) is formed at the upper ends of the gear ring (36) and the mounting plate (3).

8. The device for wet friction plates for automatic transmission of electric vehicles as claimed in claim 5, characterized in that: Six fixing bolts (35) are provided, and the six fixing bolts (35) are distributed in a ring array.

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