CN211398357U

CN211398357U - Novel friction plate

Info

Publication number: CN211398357U
Application number: CN201921916310.2U
Authority: CN
Inventors: 胡生征; 田乃利; 伍金水
Original assignee: Cnc Driveline Technology Co ltd
Current assignee: Cnc Driveline Technology Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-09-01
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a novel friction disc, including being annular friction substrate of circle and two piece at least friction linings, the friction linings evenly pastes the two sides at the friction substrate, the friction linings is equipped with the cooling oil groove towards the inner ring side in the friction substrate centre of a circle, the cooling oil groove is along the skew wire casing of the radial direction skew of friction substrate, the wire casing deepest is the oil-out, wire casing opening part is the oil inlet, the oil-out is bigger than the bore of oil inlet. The utility model discloses can realize quick oil extraction, have good separation and radiating effect, reduce and drag the loss of torque.

Description

Novel friction plate

Technical Field

The invention relates to the technical field of automobiles, in particular to a novel friction plate.

Background

The wet clutch transfers the engine torque by means of the friction force generated by axially pressing alternately installed separating steel sheets and friction sheets, and the friction sheets and the steel sheets slide relatively and generate heat by friction due to the rotation speed difference during pressing and overload of the vehicle. High temperature and heat can ablate and damage the friction plates and the separating steel plates. Meanwhile, if the separation is not complete, a large dragging torque is generated between the friction plate and the separating steel sheet, and unnecessary torque loss is caused. The friction plate applied in the existing wet clutch generally has the problems of slow oil discharge, poor heat dissipation effect and incomplete separation.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a novel friction disc can realize quick oil extraction, has good separation and radiating effect, reduces and drags the loss of torque.

According to the utility model discloses a novel friction disc of first aspect embodiment, including being annular friction substrate of circle and two piece at least friction facing, the friction facing evenly pastes the two sides at the friction substrate, the friction facing is equipped with the cooling oil groove towards the inner ring side in the friction substrate centre of a circle, the cooling oil groove is the skew wire casing along the skew of friction substrate radial direction, the deepest of skew wire casing is the oil-out, the skew wire casing opening part is the oil inlet, the oil-out is bigger than the bore of oil inlet.

According to the utility model discloses novel friction disc has following beneficial effect at least: on the basis of not changing the inner diameter and the outer diameter of the friction plate and the area of a friction contact surface, the radial groove is changed into an inclined groove, the deviation angle of the inclined groove is the movement angle of the cooling oil when the cooling oil is adaptive to the rotation of the clutch, and the inclined groove has a guiding effect and is more suitable for the actual flow direction of the oil liquid in movement; the oil outlet of the cooling oil groove is larger than the oil inlet, so that the outlet pressure is lower than the inlet pressure, the oil discharge performance is improved, and the cooling efficiency of the friction pair is improved; the bevel groove that the slant set up, the laminating is the speed difference between separation steel sheet and the friction disc respectively, separates gradually along the slant direction of bevel groove according to the atress principle friction disc, realizes the quick separation process, the loss of the moment of torsion that significantly reduces.

According to the utility model discloses a some embodiments, the cooling oil groove includes long-line groove and short-line groove, long-line groove with short-line groove is arranged alternately, for one of the preferred structure of cooling oil groove, utilizes alternate length's cooling oil groove, and the cooling oil can be better low cover friction substrate in the cooling process, improves the radiating effect.

According to the utility model discloses a some embodiments, the cooling oil groove includes long-line groove and short-line groove, per two long-line groove and per two short-line groove alternate arranging, for the preferred structure two of cooling oil groove, utilize alternate length's cooling oil groove, cooling oil can be better low cover friction substrate in cooling process, improves the radiating effect.

According to some embodiments of the utility model, the cross-section of cooling oil groove becomes the rectangle, and the fluid of being convenient for gets into through the cooling bath.

According to the utility model discloses a some embodiments, the cooling oil groove all has the chamfer, is favorable to fluid to outwards give off, prevents the phenomenon that fluid backward flow appears in the oil groove.

According to the utility model discloses a some embodiments, the chamfer angle is 45, for one of the preferred angle of chamfer, can prevent oil liquid backward flow in the oil groove better.

According to the utility model discloses a some embodiments, the inner ring department of friction substrate evenly is equipped with a plurality of profile of tooth convex parts corresponding with the friction facing, and increase heat radiating area improves the radiating effect.

According to some embodiments of the utility model, the cooling oil groove is located the skew one side of syntropy on the profile of tooth convex part, makes the motion of coolant oil's motion trail laminate the friction disc more.

According to some embodiments of the utility model, the cooling oil groove with the radial angle that forms of friction substrate is 15 ~ 75, adapts to the movement track of cooling oil.

According to some embodiments of the utility model, the oil-out is the round hole shape, reduces the pressure of producing oil, improves drainage performance.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an overall elevation view of an embodiment of the invention;

FIG. 2 is an isometric view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a sectional view at B of fig. 1.

The friction substrate 100, the tooth-shaped convex part 110, the friction lining 200, the cooling oil groove 300, the oil inlet 301, the oil outlet 302, the chamfer 303, the long line groove 310 and the short line groove 320

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

With reference to fig. 1 and 2 together, a novel friction plate according to an embodiment of the present invention will be described below.

As shown in fig. 1 and fig. 2, a novel friction plate, including a friction substrate 100 and a friction lining 200, the friction substrate 100 is a circular ring, the friction lining 200 is at least provided with two pieces, which are uniformly adhered on two sides of the friction substrate 100, the friction lining 200 is provided with a cooling oil groove 300 facing to the inner circular ring side of the friction substrate 100, the cooling oil groove 300 is used for introducing cooling oil and cooling the friction plate, the cooling oil groove 300 is a diagonal groove deviating along the radial direction of the friction substrate 100, which is different from a radial groove, and is closer to the actual flow direction of the cooling oil in motion, the deepest part of the diagonal groove is an oil outlet 302, the opening of the diagonal groove is an oil inlet 301, the oil outlet 302 has a larger caliber than the oil inlet 301, the outlet interface of the oil groove is larger than the inlet interface, the outlet pressure is lower than the inlet pressure, the oil discharge performance is improved, the cooling efficiency of the. In addition, the inclined line groove can increase the local pressure between the contact surfaces of the steel sheets and the friction sheets, increase the separating force, facilitate the quick separation of a friction pair, increase the separation gap between the friction sheets and the steel sheets, avoid the generation of a large-area oil film, and facilitate the reduction of the loss of dragging torque.

In some embodiments of the utility model, cooling oil groove 300 includes long line groove 310 and short line groove 320, long line groove 310 and short line groove 320 alternate arrangement, friction facing 200 that has short line groove 320 promptly and friction facing 200 that has long line groove 310 annular alternate arrangement on friction substrate 100, cooling fluid is in the cooling process, the cooling area of cooling fluid on the friction disc is increased through the cover effect of short line groove 320 and long line groove 310, improve the cooling effect, and short line groove 320 sets up the slant in long line groove 310 and is adapted to the friction disc equally in the combination and the separation process of steel sheet, realize quick separation and joining process, reduce torque loss. The above is one of the preferable arrangement structures of the cooling oil groove 300.

In some embodiments of the present invention, the cooling oil tank 300 includes a long line groove 310 and a short line groove 320, and two long line grooves 310 and two short fields are alternately arranged, that is, according to an alternate manner of-short line groove 320-long line groove 310-short line groove 320 …, the above technical effect of improving the heat dissipation effect can be achieved, which is the second preferred step structure of the cooling oil tank 300.

Referring to fig. 3 and 4, in some embodiments of the present invention, the cross section of the cooling oil groove 300 is rectangular, which facilitates the oil flow, and in addition, the cross section can also be in the shape of U-shaped or V-shaped groove surface, which can also achieve the technical effects of the present invention.

Specifically, cooling oil groove 300 is last to have chamfer 303, and cooling oil groove 300's boundary section both sides are equipped with outside chamfer 303 of increase promptly, and chamfer 303 is favorable to fluid to outwards give off, prevents that the condition of the interior fluid backward flow of oil groove from taking place.

More specifically, the angle of the chamfer 303 is 45 degrees, and the angle of the chamfer 303 is 45 degrees, which is one of the preferred angles of the chamfer 303, so that the oil can be conveniently diffused outwards.

In some embodiments of the present invention, the inner ring of the friction substrate 100 is uniformly provided with a plurality of tooth-shaped protrusions 110 corresponding to the friction lining 200, and the tooth-shaped protrusions 110 are convenient for increasing the heat dissipation area of the friction substrate 100 and increasing the heat dissipation effect.

Specifically, the cooling oil groove 300 is located on the side of the tooth-shaped protrusion 110 deviated in the same direction.

In some embodiments of the present invention, the angle formed by the radial direction of the cooling oil groove 300 and the friction substrate 100 is 15-75 °, and the optimum deviation angle can be selected according to the actual motion situation to adapt to the motion process of the cooling oil.

In some embodiments of the present invention, the oil outlet 302 is a circular hole, which facilitates the discharging process of the cooling oil and reduces the discharging resistance.

In addition, under the condition that the inner and outer diameter sizes of the friction plate and the contact friction area are not changed, the friction plate can be based on the utility model discloses add the diagonal groove or other cell types of other different depths and length on friction facing 200. It should be noted that the friction substrate 100 may be made of steel plate or other metal or alloy material, and the friction lining 200 is made of friction material.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. A novel friction plate, comprising:

a rubbing substrate (100) in a circular ring shape;

the friction substrate (100) is uniformly adhered to two surfaces of the friction substrate (200), cooling oil grooves (300) are formed in the inner ring sides, facing the circle center of the friction substrate (100), of the friction substrates (200), the cooling oil grooves (300) are inclined line grooves deviating along the radial direction of the friction substrate (100), oil outlets (302) are formed in the deepest parts of the inclined line grooves, oil inlets (301) are formed in openings of the inclined line grooves, and the oil outlets (302) are larger than the calibers of the oil inlets (301).

2. A new friction plate according to claim 1, characterized in that said cooling oil groove (300) comprises a long wire groove (310) and a short wire groove (320), said long wire groove (310) and said short wire groove (320) being arranged alternately.

3. A new friction plate according to claim 1, characterized in that said cooling oil groove (300) comprises long wire grooves (310) and short wire grooves (320), and every two of said long wire grooves (310) and every two of said short wire grooves (320) are alternately arranged.

4. A new friction plate according to any one of claims 1 to 3 wherein said cooling oil groove (300) is rectangular in cross-section.

5. A new friction plate according to any one of claims 1 to 3, characterized in that said cooling oil grooves (300) are each provided with a chamfer (303).

6. A novel friction plate as claimed in claim 5 wherein said chamfer (303) angle is 45 °.

7. A new friction plate according to any one of claims 1 to 3 characterized in that said friction substrate (100) is provided with a plurality of tooth-shaped protrusions (110) uniformly corresponding to said friction lining (200) at its inner ring.

8. A new friction plate according to claim 7 wherein said cooling oil groove (300) is located on the same offset side of said tooth projection (110).

9. A new friction plate according to any one of claims 1 to 3 characterized in that said cooling oil groove (300) forms an angle of 15 ° to 75 ° with the radial direction of said friction substrate (100).

10. A new friction plate according to any one of claims 1 to 3 wherein said oil outlet (302) is in the form of a circular hole.