CN2206250Y

CN2206250Y - Flywheel force-combination structure for locating upper chain

Info

Publication number: CN2206250Y
Application number: CN 95200126
Authority: CN
Inventors: 梁宗泰
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-01-04
Filing date: 1995-01-04
Publication date: 1995-08-30
Anticipated expiration: 2005-01-04

Abstract

The utility model relates to a flywheel forced combining structure for positioning upper chains. The peripheral surface of the positioning shaft is provided with a plurality of clamping teeth, a plurality of gears are outside sheathed on the clamping teeth, concave edges are circularly arranged on the edge of one side of the sleeve hole of the gear positioned on one end of the positioning shaft, and convex and concave patterns closely distributed are formed on the concave edge surfaces. Clamp rings are in a simple ring shape. Convex and concave patterns matched with the concave edges are formed on one end surface of each clamp ring, and the other end surface of each clamp rings is provided with a plurality of caulking grooves. The clamp rings are spirally locked on one end of the positioning shaft and clamped, and the clamp rings are inlaid in the concave edges of the gears and engaged and forced combining with each other by the aid of the convex and concave patterns. The utility model has the advantages of simple structure, low cost, high firmness and stability.

Description

Flywheel force-combination structure for locating upper chain

The utility model relates to a kind of flywheel of locating cochain and compels to close structure.

The structure of existing flywheel as shown in Figure 4, fix shaft 40 side faces at a tubulose are established several latches, and on the trepanning 51 of size gear 50 inequality, establish groove, when making gear 50 be enclosed within fix shaft 40, by latch and the mutual chimeric location of groove, wherein, being positioned at the gear 50 of an end and 60 of clamp rings is provided with and compels to close structure, when clamp ring 60 screw locks during at fix shaft 40 1 ends, by compeling to close structure clamp ring 60 is clamped really, thereby make each gear 50 fixing, compel to close structure between said gear 50 and the clamp ring 60 and be: the trepanning peritreme place of gear 50 directly forms asperities 510, clamp ring 60 then forms several flanges 61 in an end side face, and in 61 last asperities 610 that match with aforementioned asperities 510 that form of flange, after making clamp ring 60 be inserted in gear 50 acquisition radiation direction location, its flange 61 is attached gear 50 end faces that are affixed on, obtain axial location on the one hand, make both asperities 510 on the other hand, 610 fit mutually, compel to close and reach, but, because this design is not too suitable, still has following shortcoming in the use:

1, complex structure, be difficult for making, the cost height: it directly forms asperities 510 at trepanning 51 end faces of gear 50, causes clamp ring 60 must add the flange 61 of projection again, just can accomplish to compel to close, but, clamp ring 60 is made flange 61 again, and manufacture difficulty is big, wastes man-hour, increase cost, especially very easily produce waste product in the punching out process.

2, as mentioned above, establish projection flange 61 at clamp ring 60 peripheries, and on flange 61, be provided with asperities 610, so that the asperities 510 of mate gear 50, but consider again to avoid clamp ring blocked up, otherwise will increase flywheel thickness, cause the difficulty of increase flywheel gear number and the flexibility ratio of flywheel running, therefore, flange 61 is designed to thin type, but because of flange is thinner, its asperities 610 is after use a period of time, the as easy as rolling off a log tooth that collapses, poor durability.

The utility model purpose provides a kind of flywheel of locating cochain and compels to close structure, this designs simplification, low, firm, the good stability of cost.

For achieving the above object, the utility model adopts following structure: it is to establish several latches at the fix shaft side face that the flywheel of location cochain compels to close structure, above the several gears of confession are fastened in, tighten in an end of fix shaft with the clamp ring screw lock, wherein be positioned to be provided with between the gear of an end and clamp ring and compel to close structure, it is characterized in that described compel to close structure be: the trepanning one lateral edges ring of gear is established recessed edge, and the asperities of form gathering on recessed edge face; Clamp ring is simple ring-type, forms the asperities that matches with recessed edge on the one end, and the other end then is provided with several caulking grooves, and clamp ring is embedded in the recessed edge of gear, is meshing with each other by asperities, makes it compel to close.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1: the utility model decomposing schematic representation

Fig. 2: the utility model combination dissected figure

The local cut-away enlarged view of Fig. 3: Fig. 2

Fig. 4: existing flywheel compels to close the decomposing schematic representation of structure

Among Fig. 1, represented structure is roughly identical with existing structure, it comprises: fix shaft 10, several gears 20 and clamp ring 30, it is that an ora terminalis place of the trepanning 21 of gear at one end forms recessed edge 22 along its circumference, and forms the asperities 220 of gathering on 22 at recessed edge, and clamp ring 30 forms the ring-type of simplifying, its end face is processed into the asperities 31 that matches with the asperities 220 of recessed edge 22, and the other end then forms caulking groove 32, can supply hand tool intercalation switching.

Fig. 2, Fig. 3 represent the utility model assembled state, as what use always, earlier each gear 20 is placed in location on the fix shaft 10, with the end of clamp ring 30 screw locks, locks gradually again by clamp ring 30 in fix shaft 10, this clamp ring 30 is the trepanning 21 that deeply is positioned at the sprocket wheel 20 of an end, the asperities 31 of clamp ring 30 and the asperities 220 of recessed edge are meshing with each other, these members are fixedly positioning, as desire to take apart this structure, then can be intercalated in caulking groove 32 counter-rotatings, can open by hand tool.

The utility model advantage:

1, designs simplification, easy to manufacture, cost-cutting significantly: it is to form the recessed edge 22 that holds for clamp ring 30 at gear 20 end faces, and establish asperities 220, and making clamp ring 30 directly form ring-type and asperities 31 and get final product, punching out is easy, be difficult for producing substandard products, cost-cutting significantly.

2, as above-mentioned structure, this clamp ring 30 need not add flange, the superfluous limit of extending around not having, its asperities 31 directly is formed on the holistic ring-type clamp ring 30, and structural strength is good, can not produce and collapse tooth, and clamp ring 30 gos deep into the integral thickness that gear can lower flywheel, helps increasing the gear number.

3, on clamp ring, be provided with caulking groove 32, make clamp ring under the requirement of simplified structure, still have the easy function of dismounting concurrently, very practical.

In a word, the utility model designs simplification, cost-cutting improves fastness significantly, and is easy to use, can thoroughly improve many shortcomings of existing procucts.

Claims

1, a kind of flywheel of locating cochain compels to close structure, it is to establish several latches at the fix shaft side face, above the several gears of confession are fastened in, tighten in an end of fix shaft with the clamp ring screw lock, wherein be positioned to be provided with between the gear of an end and clamp ring and compel to close structure, it is characterized in that described compel to close structure be: the trepanning one lateral edges ring of gear is established recessed edge, and the asperities of form gathering on recessed edge face; Clamp ring is simple ring-type, forms the asperities that matches with recessed edge on the one end, and the other end then is provided with several caulking grooves, and clamp ring is embedded in the recessed edge of gear, is meshing with each other by asperities, makes it compel to close.