CN2199368Y

CN2199368Y - Universal chain transmission mechanism

Info

Publication number: CN2199368Y
Application number: CN 94237753
Authority: CN
Inventors: 谭祝华
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-09
Filing date: 1994-07-09
Publication date: 1995-05-31
Anticipated expiration: 2004-07-09

Abstract

The utility model relates to a chain transmission mechanism, particularly a universal chain transmission mechanism. The realization of the existing chain transmission mode is limited within the same plane. The universal chain transmission mechanism can realize that one chain can drive in different plane space in all directions. The universal chain transmission mechanism is composed of a chain and a chain wheel. Chain links are connected by adopting universal joints. A plurality of inner tooth-shaped surfaces which are corresponding to the chain links are arranged on the circumferential edge of the chain wheel. Movable grooves for containing the universal joints are arranged on the outer teeth of the chain wheel. The universal chain transmission mechanism is used, the universal chain transmission mechanism has simple and reliable transmission and high synchronization performance, and the universal chain transmission mechanism especially can satisfy a transmission requirement under an irregular condition.

Description

Universal chain transmission mechanism

The utility model relates to chain drive, particularly a kind of universal chain driving mechanism.

Existing chain transmission mode all is limited in the same plane to be realized, Chinese patent (CN87100596A) is though disclosed universal chain is implemented in Different Plane, chain-driven under the complexity of different direction, the irregular condition, it mainly is to adopt chain link that is the inside and outside surface of contact of ball-type and the outer tine type sprocket wheel that matches with this chain link to realize, the main deficiency of this ten thousand pitch chains is that the inside and outside surface of contact difficulty of processing of chain link is big, the assembly process complexity of chain link, maintenance is inconvenient, and chain link can only the ball-type structure, thereby using scope is restricted.

A kind of universal chain driving mechanism that the utility model provides adopts universal joint to connect between chain link, and chain link can be disk type, spheroid shape, also can be ball-type, and the chain link of damage can be changed at any time.Thereby it is simple to have manufacturing procedure, and easily assembling, features simple structure between the chain link, advantage such as cost is low, using scope is wide can realize being in the not interlock of a plurality of wheel shafts of coplanar, different direction with a chain link.

Design proposal of the present utility model is: a kind of universal chain driving mechanism, form by chain and sprocket wheel, it is characterized in that adopting between the chain link universal joint to connect, the periphery of sprocket wheel has several internal tooth form faces relative with chain link, has the groove that holds the universal joint activity on the external tooth of sprocket wheel.

Chain link of the present utility model is spheroid shape or ball-type or disk type.

Adopt universal joint to connect between the chain link of the present utility model, compared with prior art, manufacturing procedure is simple, easily assembling between the chain link, features simple structure, low cost and other advantages, can realize being in the interlock of a plurality of wheel shafts of Different Plane, different direction with a chain.

Fig. 1 is the utility model embodiment 1 sprocket wheel schematic representation;

Fig. 2 is the utility model embodiment 1 chain schematic representation;

Fig. 3 is the utility model embodiment 2 sprocket wheel schematic representation;

Fig. 4 is the utility model embodiment 2 chain schematic representation;

Fig. 5 is the utility model embodiment 3 sprocket wheel schematic representation;

Fig. 6 is the utility model embodiment 3 chain schematic representation.

Below in conjunction with accompanying drawing embodiment is described:

Embodiment 1: the sprocket wheel of describing among Fig. 1 (1), periphery has several internal tooth form faces (2), toothed surface (2) is the ball-type face, and its radius is consistent with chain link (5,6) radius, has the groove (4) that holds the universal joint activity on external tooth (3), the chain of describing among Fig. 2, chain link (5,6) profile is the ball-type face, on chain link (5,6), mutually perpendicular semicircular ring (7,8) is arranged, semicircular ring (7,8) is nested together, and just can rotate mutually between the chain link (5,6) like this.

Embodiment 2: the sprocket wheel of describing among Fig. 3 (9), periphery has several internal tooth form faces (10), toothed surface is the ellipsoid profile, on external tooth (11), have the groove (12) that holds the universal joint activity, with chain link (13,19) ellipsoid profile unanimity, the chain link of describing among Fig. 4 (13,19), chain link (13,19) profile is the ellipsoid profile, chain link (13, two semi-circular plate I (14) and two semi-circular plate II (18) are respectively arranged 19), semi-circular plate I (14) is orthogonal with semi-circular plate II (18), one end of four-bladed vane (16) links to each other with two semi-circular plate I (14) by round pin I (15), the other end links to each other with two semi-circular plate II (18) by round pin II (17), like this, chain link (13,19) just can rotate mutually between.

Embodiment 3, and the sprocket wheel of describing among Fig. 5 (20), periphery have several internal tooth form faces (21), toothed surface is the U face, all the other structures are with embodiment 1, and the chain link of describing among Fig. 6 (22,23) profile is the disk profile, and the connection between the chain link (22,23) is with embodiment 1.

Claims

1, a kind of universal chain driving mechanism is made up of chain and sprocket wheel, it is characterized in that between the chain link adopting universal joint to connect, and the periphery of sprocket wheel has several and the corresponding internal tooth form face of chain link, has the groove that holds the universal joint activity on the external tooth of sprocket wheel.

2, a kind of universal chain driving mechanism according to claim 1 is characterized in that the structure of the universal joint between the chain link is, mutually perpendicular two semicircular ring are all arranged on the both sides of each chain link, and the semicircular ring on two chain links is nested together.

3, a kind of universal chain driving mechanism according to claim 1, the structure that it is characterized in that universal joint between the chain link is: one side at two semi-circular plates that have of each chain link, another side has two perpendicular semi-circular plates, connects first plectane of two chain links with the two ends of four-bladed vane by round pin.

4, according to claim 1 or 2 or 3 described a kind of universal chain driving mechanisms, it is characterized in that chain link is the ball-type face, the internal tooth form face of sprocket wheel is the ball-type face, both radius unanimities.

5, according to claim 1 or 2 or 3 described a kind of universal chain driving mechanisms, it is characterized in that chain link is the ellipsoid profile, the internal tooth form face of sprocket wheel also has the ellipsoid profile consistent with chain link ellipsoid profile.

6, according to claim 1 or 2 or 3 described a kind of universal chain driving mechanisms, it is characterized in that chain link is the disk type, the internal tooth form face of sprocket wheel is the U profile.