CN2743607Y

CN2743607Y - Wet clutch for gasoline engine

Info

Publication number: CN2743607Y
Application number: CN 200420061532
Authority: CN
Inventors: 周树明; 张荣义; 何跃均
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-27
Filing date: 2004-09-27
Publication date: 2005-11-30
Anticipated expiration: 2014-09-27

Abstract

The utility model relates to a wet clutch for gasoline engine. A pressure plate (2) and a center sleeve (3) are coaxially arranged in the outer cover. A spring column of the pressure plate (2) passes through a spring column hole of the center sleeve (3). A pushing plate (5) is fixed on the pressure plate (2). A spring (4) is sheathed on the spring column (2a) of the pressure plate (2). Wherein, one end of the spring is bunt to the center sleeve (3) and the other end of the spring is bunt to the pushing plate (5). The peripheral teeth of the friction plate (6) are clamped in the tooth space of the outer cover (1). The inner edge teeth of the driven plate (7) are clamped in the tooth space of the center sleeve (3). The number of the friction plates (6) is no more than 4. The thickness of the friction plate (6) is 4 mm to 6. 5 mm; the thickness of the core plate on the friction plate (6) is 2 mm to 3 mm; the thickness of the driven plate (7) is between 2 mm to 3 mm. The utility model can avoid the problem that the friction plate is easily heated to slide causing the ill-riding behaviors of the motorcycle and the short service life of the clutch, and be suitable for broad types of motorcycle with a high capability for the clutch outputting torque.

Description

The petrol engine wet clutch

Technical field

The utility model relates to a kind of clutch, especially the petrol engine wet clutch.

Background technique

At present, widely used wet clutch is mainly formed by outer cover, platen, central sleeve, spring, push-plate and by the friction pair that friction plate and driven plate (steel disc) constitute on the motorcycle gasoline engine, its friction plate is generally that (wherein 125 types and 150 types is 5 more than 5,200 types be 6), the thickness of friction plate is 2.9～3.05mm, and the thickness of driven plate is between 1～1.5mm.The clutch transmission torque of this structure (static friction moment of torsion) ability is very limited, generally can only on the motor below 125 types, use, the heat-transfer coefficient of friction plate is higher, in use friction plate generates heat easily, therefore the motorcycle clutch phenomenon that can occur skidding in use for some time, cause driving power deficiency, especially under overload situations or then more outstanding in the travelling of mountain area slope road, so the life-span of clutch is very low.For addressing the above problem, person skilled once attempted to go to improve by the sheet number that increases friction plate, the aspects such as material that improve the friction factor of friction plate or change friction plate the output torque ability of clutch, facts have proved that effect is unsatisfactory.

The model utility content

The purpose of this utility model provides a kind of petrol engine wet clutch, on the basis that does not change clutch volume and monnolithic case structure, it is limited in one's ability to solve traditional clutch transmission torque of the same type, easily heating and skidding of friction plate causes the problem that the motorcycle driving is ineffective and life of clutch is low in the use.

The technical solution of the utility model is: it comprises outer cover, platen, central sleeve, spring, push-plate and the friction pair that constitutes by friction plate and driven plate, platen and central sleeve are with being located in the outer cover, spring stack on the platen passes the spring stack hole on the central sleeve, push-plate is by being bolted on the platen, spring housing is on the spring stack of platen, one end of spring leans on central sleeve, the other end leans on push-plate, the marginal tooth of friction plate is installed in the teeth groove of outer cover, the interior uncinus of driven plate is installed in the teeth groove of central sleeve, friction plate and driven plate are arranged alternately, no more than 4 of described friction plate, the thickness of every friction plate is 4～6.5mm, and wherein the thickness of central layer is 2～3mm on the friction plate, and the thickness of driven plate is between 2～3mm.

The utility model is compared with traditional 125 type motorcycle gasoline engine clutches, has reduced the sheet number of friction plate in the friction pair, increased the thickness of friction plate and driven plate (steel disc) simultaneously, but its structure and working principle is identical, and installation dimension is just the same.Though reduced friction area total in the friction pair, but the heat-transfer coefficient of friction plate reduces, in the use, friction plate and driven plate are not easy heating, be out of shape for a short time, a little less than the heat fade ability, so the ability of its transmitting torque is strong and stablize, our experiments show that it can be widely used in 125 types in the various motorcycle gasoline engine between the 250 model.

The beneficial effects of the utility model are: the ability of output torque is strong, and the type that is suitable for motorcycle gasoline engine is wide, and friction plate heating and skidding easily causes the problem that the motorcycle driving is ineffective and life of clutch is low in having avoided using.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a kind of example structure schematic representation of driven plate 7 among Fig. 1;

Fig. 3 is the A-A sectional view of Fig. 2;

Fig. 4 is the another kind of example structure schematic representation of driven plate 7 among Fig. 1;

Fig. 5 is the B-B sectional view of Fig. 4.

Embodiment

As shown in Figure 1, the utility model is by outer cover 1, platen 2, central sleeve 3, spring 4, push-plate 5 and form by the friction pair that friction plate 6 and driven plate 7 constitute, platen 2 and central sleeve 3 are with being located in the outer cover 1, spring stack 2a on the platen 2 passes the spring stack hole 3a on the central sleeve 3, push-plate 5 is fixed on the platen 2 by bolt 8, spring 4 is enclosed within on the spring stack 2a of platen 2, one end of spring 4 leans on central sleeve 3, the other end leans on push-plate 5, the marginal tooth of friction plate 6 is installed in the teeth groove of outer cover 1, the interior uncinus of driven plate 7 is installed in the teeth groove of central sleeve 3, friction plate 6 and driven plate 7 are arranged alternately, and described friction plate 6 is 3, and the thickness of every friction plate 6 is 6mm, wherein the thickness of central layer is 3mm on the friction plate 6, and the thickness of driven plate 7 is 3mm.

Fig. 1 also illustrates on the axle journal that driving tooth 10 is enclosed within outer cover 1 and by bolt and outer cover 1 and tightens together, by extrusion process spline housing 11 is housed in the endoporus of central sleeve 3, be provided with spline packing ring 12 between the inner bottom surface of the end face of spline housing 11 and outer cover 1, driving tooth is delivered on the engine spindle by this spline housing 11 and spline packing ring 12 through the moment of torsion of clutch transmits.In addition, 13 is push rod among Fig. 1, and 14 is bearing, and 15 is release bearing, and 16 is back-up ring.

To shown in Figure 6, the oil groove 9 between friction plate 6 and the driven plate 7 is arranged on the driven plate 7 as Fig. 2.Wherein Fig. 2, Fig. 3 show wherein a kind of mode of execution of driven plate 7, and promptly the oil groove on the driven plate 79 is a circular groove; Fig. 4, Fig. 5 show the another kind of mode of execution of driven plate 7, and promptly the oil groove 9 on the driven plate 7 is straight trough radially.Oil groove 9 on the driven plate 7 is not limited to above two kinds, also can be other forms such as waveform, swallow-tail form.Oil groove 9 is arranged on the driven plate 7, and is not arranged on the friction plate 6, can increase effective working surface of monolithic friction plate 6, strengthens the intensity of friction plate 6, thereby finally improves the ability of friction pair transmitting torque.

Claims

1, a kind of petrol engine wet clutch, comprise outer cover (1), platen (2), central sleeve (3), spring (4), push-plate (5) and the friction pair that constitutes by friction plate (6) and driven plate (7), platen (2) and central sleeve (3) are with being located in the outer cover (1), spring stack (2a) on the platen (2) passes the spring stack hole (3a) on the central sleeve (3), push-plate (5) is fixed on the platen (2) by bolt (8), spring (4) is enclosed within on the spring stack (2a) of platen (2), one end of spring (4) leans on central sleeve (3), the other end leans on push-plate (5), the marginal tooth of friction plate (6) is installed in the teeth groove of outer cover (1), the interior uncinus of driven plate (7) is installed in the teeth groove of central sleeve (3), friction plate (6) and driven plate (7) are arranged alternately, it is characterized in that: no more than 4 of described friction plate (6), the thickness of every friction plate (6) is 4～6.5mm, wherein the thickness of the last central layer of friction plate (6) is 2～3mm, and the thickness of driven plate (7) is between 2～3mm.

2, petrol engine wet clutch according to claim 1 is characterized in that: the oil groove (9) between described friction plate (6) and the driven plate (7) is arranged on the driven plate (7).

3, petrol engine wet clutch according to claim 2 is characterized in that: the oil groove (9) on the described driven plate (7) is a circular groove.

4, petrol engine wet clutch according to claim 2 is characterized in that: the oil groove (9) on the described driven plate (7) is straight trough radially.