CN205244175U - Clutch case - Google Patents

Abstract

The utility model belongs to the field of design and manufacture of automobile clutches, in particular to a clutch cover, which comprises a disc-shaped bottom wall and an annular side wall connected to the edge of the bottom wall. The end face of the clutch flywheel is connected, and the bottom wall, the side wall and the flywheel jointly form a cavity for accommodating the clutch components, and the bottom wall is provided with a central hole for the clutch input shaft to pass through; the side wall and the bottom wall An air inlet and an air outlet are respectively provided, and guide vanes are also provided on the side wall and/or the bottom wall. When the housing rotates with the flywheel, the guide vanes can cause a flow from the air inlet to the air outlet to be generated in the cavity. Flowing air. When the clutch rotates, under the action of the guide vanes, an air circulation circle is formed in the clutch, which greatly increases the heat dissipation efficiency, makes the temperature of the friction plate stable within an appropriate range, and is conducive to improving the working stability of the clutch.

Description

a clutch cover

technical field

The utility model belongs to the field of design and manufacture of automobile clutches, in particular to a clutch cover.

Background technique

The clutch plays a vital role in the automobile transmission system, not only for interruption and combination of power, but also for overload protection of the transmission system. When the torque transmitted by the engine is greater than the set torque limit of the clutch or when there is an impact, the clutch will slip and wear, thereby protecting the drive train, which is especially important when the car is started. When the clutch is slipping, the friction plate generates heat, causing the temperature to rise. If the temperature cannot be lowered, it will affect the life of the clutch and the reliability of the transmitted torque. So clutch heat dissipation is also very important. For the wet clutch, the friction plate is immersed in lubricating oil, and the heat generated by friction is taken away by the lubricating oil, thus ensuring that the temperature of the friction plate is within a reasonable range. The dry clutch is mainly cooled by air, and its cooling efficiency mainly depends on the air flow inside the clutch. The faster the air flows, the more heat it takes away, the lower the temperature of the clutch friction plate, and the better the clutch performance. Conversely, the slower the air flow, the less heat it takes away, the higher the temperature of the clutch friction plate, the worse the clutch performance

Utility model content

The purpose of the utility model is to provide a clutch cover which can improve the heat dissipation performance of the automobile clutch.

In order to achieve the above object, the utility model provides the following technical solutions: a clutch cover, including a disc-shaped bottom wall, and an annular side wall connected to the edge of the bottom wall, on the side wall far away from the bottom wall One end is connected with the end face of the clutch flywheel, and the bottom wall, the side wall and the flywheel together form a cavity for accommodating the clutch components, and the bottom wall is provided with a central hole for the clutch input shaft to pass through; the side wall and the bottom Air inlet holes and air outlet holes are respectively arranged on the wall, and guide vanes are also arranged on the side wall and/or the bottom wall. The airflow flowing from the vent hole.

The technical effect of the utility model is that: when the clutch rotates, under the action of the guide vane, the air outside the clutch enters the interior of the clutch through the air intake hole; the air inside the clutch flows out of the clutch through the air outlet hole. In this way, an air circulation flow circle is formed in the clutch, which greatly increases the heat dissipation efficiency, stabilizes the temperature of the friction plate in an appropriate range, and is conducive to improving the working stability of the clutch; furthermore, due to the heat dissipation efficiency of the air circulation flow circle High, there are relatively few cooling holes on the clutch cover, which improves the strength of the clutch cover to a certain extent; and under the same strength, realizes the requirement of lightweight clutch cover.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is a sectional view of the utility model.

detailed description

As shown in Figures 1 and 2, a clutch cover includes a disc-shaped bottom wall 10, and an annular side wall 11 connected to the edge of the bottom wall 10, and an end of the side wall 11 away from the bottom wall 10 It is connected with the end face of the clutch flywheel, and the bottom wall 10, the side wall 11 and the flywheel jointly form a cavity for accommodating the clutch components, and the bottom wall 10 is provided with a central hole 15 for the clutch input shaft to pass through; the side The wall 11 and the bottom wall 10 are respectively provided with an air inlet 12 and an air outlet 13, and the side wall 11 and/or the bottom wall 10 are also provided with guide vanes 14, and when the housing rotates with the flywheel, the guide vanes 14 can make the airflow flowing from the air inlet hole 12 to the air outlet hole 13 be generated in the cavity. The direction indicated by the arrow in Fig. 1 is the rotation direction of the housing. When the clutch rotates, under the action of the guide vane 14, the air outside the clutch enters into the clutch through the air inlet 12; the air inside the clutch flows out of the clutch through the air outlet 13 again. In this way, an air circulation flow circle is formed in the clutch, which greatly increases the heat dissipation efficiency, stabilizes the temperature of the friction plate in an appropriate range, and is conducive to improving the working stability of the clutch; furthermore, due to the heat dissipation efficiency of the air circulation flow circle High, there are relatively few cooling holes on the clutch cover, which improves the strength of the clutch cover to a certain extent; and under the same strength, realizes the requirement of lightweight clutch cover.

FIG. 1 is an embodiment of the present invention. In this embodiment, guide vanes 14 are provided at the air inlet holes 12 and the air outlet holes 13 .

The structure of the air intake holes 12 is as follows: there are a plurality of air intake holes 12 arranged at regular intervals along the circumferential direction of the side wall 11 . There are a plurality of guide vanes 14, and they are respectively bent from the rear edge of each air inlet 12 to the outside of the air inlet 12. The rear refers to the movement direction of each point on the side wall 11 when the housing rotates. the opposite direction. The included angle between the guide vane 14 and the tangential direction of the side wall 11 is 30°-60°.

The structure of the air outlet holes 13 is as follows: there are a plurality of air outlet holes 13 arranged at regular intervals along the circumferential direction of the bottom wall 10 . There are a plurality of guide vanes 14, and they are respectively bent from the rear edge of each air outlet 13 to the inner side of the air outlet 12. The rear refers to the opposite movement direction of each point on the bottom wall 10 when the housing rotates. direction. The included angle between the guide vanes 14 and the bottom wall 10 is 30°-60°.

Further, the end of the side wall 11 away from the bottom wall 10 is provided with a flange-shaped flange 16 , and the flange 16 is provided with screw holes 17 . The housing is connected with the clutch flywheel through the flange 16 .

Further, a rivet hole 18 is opened at the edge of the central hole 15 of the bottom wall 10 for connecting the shaft seal assembly.

Claims (9)

1. A clutch cover, characterized in that: comprise a disc-shaped bottom wall (10), and an annular side wall (11) joining the edge of the bottom wall (10), on the side wall (11) The end away from the bottom wall (10) is connected to the end face of the clutch flywheel, the bottom wall (10), the side wall (11) and the flywheel together form a cavity for accommodating the clutch components, and the bottom wall (10) is provided with A central hole (15) for the clutch input shaft to pass through; the side wall (11) and the bottom wall (10) are respectively provided with an air inlet (12) and an air outlet (13), and the side wall (11) And/or the bottom wall (10) is also provided with guide vane (14), when housing rotates with flywheel, guide vane (14) can make in the cavity produce from air inlet hole (12) to air outlet hole (13). ) flowing air. 2. The clutch cover according to claim 1, characterized in that there are a plurality of said air intake holes (12), which are evenly spaced along the circumferential direction of the side wall (11). 3. The clutch cover according to claim 2, characterized in that: there are a plurality of guide vanes (14), and they extend from the rear edge of each air inlet (12) to the outside of the air inlet (12) respectively. The side is bent and set, and the rear refers to the opposite direction of the movement direction of each point on the side wall (11) when the housing rotates. 4. The clutch cover according to claim 3, characterized in that: the included angle between the guide vane (14) and the tangential direction of the side wall (11) is 30°-60°. 5. The clutch cover according to claim 1, characterized in that there are a plurality of air outlet holes (13) arranged at regular intervals along the circumferential direction of the bottom wall (10). 6. The clutch cover according to claim 5, characterized in that: there are a plurality of guide vanes (14), and they are respectively bent from the rear edge of each air outlet hole (13) to the inner side of the air outlet hole (12). Folding setting, the rear refers to the opposite direction of the movement direction of each point on the bottom wall (10) when the housing rotates. 7. The clutch cover according to claim 6, characterized in that: the included angle between the guide vane (14) and the bottom wall (10) is 30°-60°. 8. The clutch cover according to claim 1, characterized in that: the end of the side wall (11) away from the bottom wall (10) is provided with a flange-shaped flange (16), and the flange (16) Screw holes (17) are provided on it. 9. The clutch cover according to claim 1, characterized in that: a rivet hole (18) is opened at the edge of the central hole (15) of the bottom wall (10).