CN201772018U

CN201772018U - Toothed chain applied to power transmission of motorcycle

Info

Publication number: CN201772018U
Application number: CN2010201756691U
Authority: CN
Inventors: 肖威
Original assignee: Individual
Current assignee: Xiao Wei
Priority date: 2010-04-29
Filing date: 2010-04-29
Publication date: 2011-03-23
Anticipated expiration: 2020-04-29

Abstract

The utility model discloses a toothed chain applied to power transmission of a motorcycle. The toothed chain comprises a pin and a connecting sheet and is characterized by also comprising a sprocket made of a steel material or a powder metallurgy material; the connecting sheet is provided with a connecting hole; the tooth body of the sprocket is provided with a convex tooth; the sprocket is provided with a connecting through hole; a connecting unit consists of two connecting sheets and the sprocket; in each connecting unit, the pin passes through a connecting hole on a first connecting sheet, the connecting through hole on the sprocket and a connecting hole on a second connecting sheet in turn, so that the first connecting sheet, the sprocket and the second connecting sheet are hinged with one another; and an enclosed toothed chain is formed by sequentially connecting the connecting sheet, the sprocket, the connecting sheet and the sprocket of a plurality of connecting units in a sequential connection mode. The toothed chain can be in full surface contact with a matched chain wheel, so that the power transmission is reliable and service life is prolonged remarkably.

Description

Be used for the toothed chain on the motorcycle power transmission

Technical field

The utility model relates to a kind of component that are used on the motorcycle, particularly a kind of transmission toothed chain.

Background technique

The used transmission device of tradition motorcycle includes with metal toothed chain and sprocket wheel, toothed chain includes pin, pin cover and connecting sheet, per two pin covers are formed a unit by connecting sheet, and a plurality of unit are hinged to toothed chain by connecting sheet, and its deficiency is:

The gear teeth insert between the pin cover when (1) using, and the gear teeth are pointed tooth, and sprocket wheel is that line contact with engagement between the toothed chain, so the soundness deficiency of engagement causes wearing and tearing each other, in use, enters silt, can further increase and wear and tear.

(2) because the structure shape of toothed chain makes engagement soundness deficiency between sprocket wheel and the toothed chain, for guaranteeing that transmission is normal, necessarily require the gear teeth intensity of sprocket wheel enough strong, so sprocket wheel can only be made by high-intensity metal, production process is numerous and diverse, must process through unreel, aligning, crop, punch press blanking, lightening core, machined into, gear hobbing, carve characters, tens process steps such as high frequency heat processing, ball blast surface treatment, detection hardness and beat degree, shades of colour processing, packed products just can finish, processing is very complicated, with high costs.

(3) by the annexation of connecting sheet and guide, pin as can be seen, cotter length is longer, makes the intensity of chain low, and chain damages easily, and working life is short.

The model utility content

The purpose of this utility model just provides a kind of toothed chain that is used on the motorcycle power transmission, and it can form abundant face with the sprocket wheel that matches and contact, and power transmission is reliable, significant prolongation working life.

The purpose of this utility model is to realize by such technological scheme, it includes pin and is provided with the connecting sheet of attachment hole, it also includes sprocket, the denticle of sprocket is provided with double wedge, sprocket is provided with connecting through hole, pin passes attachment hole, the connecting through hole on the sprocket and the attachment hole on the connecting sheet on the connecting sheet successively, makes connecting sheet, sprocket, connecting sheet hinged each other, is in turn connected into closed toothed chain with the order of connecting sheet, sprocket, connecting sheet, sprocket.

The utility model use that must custom-designed sprocket wheel matches, during use, in the engagement process of the teeth groove on sprocket on toothed chain and the sprocket wheel between the gear teeth, formation face contacts between sprocket and the teeth groove, increase area of contact significantly, mesh solid and reliable, and stressed evenly, reduce wear, avoid the pointed tooth on the sprocket wheel to be broken by the toothed chain card; When entering silt, because toothed chain contact with face between the sprocket wheel, silt closely is pressed on the sprocket wheel equably, form the protective film of avoiding sprocket wheel to wear and tear.Because toothed chain and sprocket engagement are tight, area of contact enlarges markedly, so the requirement of strength to sprocket wheel reduces, can make by engineering plastics, disposable injection molded gets final product when manufacturing, production process is simple, can significantly reduce the cost of production with the corresponding sprocket wheel of toothed chain, saves cost more than 80%.

Owing to adopted technique scheme, the utlity model has following advantage: significant prolongation working life, production process is simple, reduces production costs, and power transmission is reliable, obviously reduces noise.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is first kind of embodiment's of the utility model a structural representation;

Fig. 2 is Fig. 1 plan view;

Fig. 3 is the A-A sectional view of Fig. 1;

Fig. 4 is first kind of embodiment's medium chain of the utility model toothing schematic representation;

Fig. 5 is a connecting sheet structural representation among first kind of embodiment of the utility model;

Fig. 6 is Fig. 5 plan view

Fig. 7 is second kind of example structure schematic representation of the utility model;

Fig. 8 is a connecting sheet structural representation among second kind of embodiment of the utility model;

Fig. 9 is second kind of embodiment's medium chain of the utility model toothing schematic representation;

Figure 10 is the utility model user mode schematic representation;

Among the figure: 1. pin; 2. attachment hole; 3. connecting sheet; 4. sprocket; 5. double wedge; 6. connecting through hole; 7. first connecting sheet; 8. second connecting sheet; 9. gear piece; 10. sprocket wheel; 11. the gear teeth; 12. teeth groove; 13. guiding piece.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

A kind of toothed chain that is used on the motorcycle power transmission, as Fig. 3, Fig. 5, shown in Figure 4, it by pin 1, have the connecting sheet 3 of attachment hole 2 and form by the sprocket 4 that steel or powdered metallurgical material are made, as shown in Figure 4, the denticle of sprocket 4 is provided with double wedge 5, and sprocket 4 is provided with connecting through hole 6; As shown in Figure 3, form a linkage unit with two connecting sheets 3 and sprocket 4, in each linkage unit, pin 1 passes the attachment hole 2 on attachment hole 2, the connecting through hole 6 on the sprocket 4 and second connecting sheet 8 on first connecting sheet 7 successively, makes first connecting sheet 7, sprocket 4, second connecting sheet 8 hinged each other; As Fig. 1 and shown in Figure 7, a plurality of linkage units are in turn connected into closed toothed chain according to the mode of being linked in sequence of connecting sheet 3, sprocket 4, connecting sheet 3, sprocket 4.

As shown in figure 10, the utility model use that must custom-designed sprocket wheel 10 matches, during use, in the engagement process of the teeth groove 12 on sprocket 4 on toothed chain and the sprocket wheel 10 between the gear teeth 11, formation face contacts between sprocket 4 and the teeth groove 12, increases area of contact significantly, mesh solid and reliable, and stressed even, not easy to wear, avoid the pointed tooth on the sprocket wheel 10 to be broken by the toothed chain card; Because toothed chain and sprocket wheel 10 engagements are closely, area of contact enlarges markedly, so the requirement of strength of sprocket wheel 10 is reduced, can be made by engineering plastics, makes full use of the damping characteristics of plastics itself, realizes the purpose of defeating a force with a tenderness.Disposable injection molded gets final product when manufacturing, and production process is simple, can significantly reduce the cost of production with the corresponding sprocket wheel of toothed chain, saves cost more than 80%.

As Fig. 4, shown in Figure 9, sprocket 4 can be triangle, also can be other shape, and the bottom surface of sprocket 4 can be cambered surface.

As shown in Figure 9, manufacture for the ease of punching press, sprocket 4 is stacked together by multi-disc gear piece 9 to be formed, and it can be two, three, four, or even multi-disc more, and the user determines the sheet number according to the needs of oneself.Certainly, sprocket 4 also can be an integral body.

As shown in Figure 8, connecting sheet 3 is provided with the guiding piece 13 that is one.This guiding piece 13 can better mesh toothed chain and sprocket wheel easily with the gear teeth importing of sprocket wheel.

Claims

1. toothed chain that is used on the motorcycle power transmission, it includes pin (1) and has the connecting sheet (3) of attachment hole (2), it is characterized in that: it also includes the sprocket of being made by steel or powdered metallurgical material (4), the denticle of sprocket (4) is provided with double wedge (5), and sprocket (4) is provided with connecting through hole (6); Form a linkage unit with two connecting sheets (3) and sprocket (4), in each linkage unit, pin (1) passes attachment hole (2), the connecting through hole (6) on the sprocket (4) and the attachment hole (2) on second connecting sheet (8) on first connecting sheet (7) successively, makes first connecting sheet (7), sprocket (4), second connecting sheet (8) hinged each other; A plurality of linkage units are in turn connected into closed toothed chain according to the mode of being linked in sequence of connecting sheet (3), sprocket (4), connecting sheet (3), sprocket (4).

2. be used for the toothed chain on the motorcycle power transmission according to claim 1, it is characterized in that: sprocket (4) is triangular in shape.

3. be used for the toothed chain on the motorcycle power transmission according to claim 1, it is characterized in that: the bottom surface of sprocket (4) is a cambered surface.

4. as being used for the toothed chain on the motorcycle power transmission as described in the claim 1,2 or 3, it is characterized in that: sprocket (4) is stacked together by a plurality of gear pieces (9) and constitutes.

5. as being used for the toothed chain on the motorcycle power transmission as described in the claim 4, it is characterized in that: the number of gear piece (9) is four.

6. as being used for the toothed chain on the motorcycle power transmission as described in the claim 1,2 or 3, it is characterized in that: sprocket (4) is as a whole.

7. as being used for the toothed chain on the motorcycle power transmission as described in the claim 1,2 or 3, it is characterized in that: connecting sheet (3) is provided with the guiding piece (13) that is one.