CN2740839Y

CN2740839Y - Improved chain

Info

Publication number: CN2740839Y
Application number: CN 200420009651
Authority: CN
Inventors: 吴华田
Original assignee: Ta Ya Chain Co Ltd
Current assignee: Ta Ya Chain Co Ltd
Priority date: 2004-10-26
Filing date: 2004-10-26
Publication date: 2005-11-16
Anticipated expiration: 2014-10-26

Abstract

The utility model relates to an improved chain. A plurality of unit components are connected in series to form the chain. Every unit component is composed of two outer chain plates, two inner chain plates, a chain roller, and two chain pins, wherein, a flange is extended from the pin hole position of the circular arc surface at one side of each inner chain plate, and a concave arc edge is formed at the pin hole position of the circular arc surface at the other side of each inner chain plate. The oil containing space is formed inside the concave arc edge. When the two inner chain plates are combined, the chain roller which can freely rotate is just penetrated at the position between the two corresponding flanges, and the two concave arc edges are in a bottom bunting state. The oil containing space which is inside the concave arc edge and faces the direction of the outer chain plates can accommodate grease. When the two outer chain plates and the two inner chain plates are pivoted into an integral body by the chain pins, the chain roller which can freely rotate and the chain structure which has lubricating efficiency can be simultaneously arranged in the same unit component.

Description

The improved type chain

Technical field

The utility model is a kind of improved type chain, refers to a kind of chain that chain is had contain concurrently oil lubrication and can be smooth and easy advance grade effect especially.

Background technique

Chain, its purpose are to cooperate with sprocket wheel and possess the transmission effect, therefore can different R﹠D directions be arranged because of different demands in the design process of chain.

As desire to make sprocket wheel to snap in the chain swimmingly, mesh closely and reach, then on chain, can utilize chain roller design free to rotate mostly, the latch that makes sprocket wheel is when the contact chain roller, the guiding that utilizes the chain roller freely to rotate, and snap in the chain swimmingly, so being seen on the market at present four assembly chains, its each unit block all is by two outer plates, two inner plates, be located between two inner plates the chain roller and with outer plate, the chain pin of inner plate pin joint one is formed, and the chain roller that is located between two inner plates is design free to rotate, can make sprocket wheel snap in structure in the chain swimmingly to provide one.

Other desires to make chain to be located on the sprocket wheel periphery, then each pivoting point of chain must possess splendid flexibility ratio, so that chain is located on the sprocket wheel periphery without barrier, the chain of therefore present each pattern, relative size palpus accurate Calculation between its chain pin and outer plate, inner plate, make chain pin must with the accurate riveted of outer plate, and avoid between each member producing the situation that comes off, and must keep suitable gap between chain pin and inner plate, so that each pivoting point to be being pivotal point between chain pin and inner plate, and reach the purpose that chain can be located on the sprocket wheel periphery; But each member all can produce suitable tolerance nargin when making, so the size between chain pin, outer plate and inner plate must control quite precisely, just can reach splendid cooperation.

The trends of design of above-mentioned chain, all be to consider for single goal, yet a chain is when user mode, must take into account simultaneously the smoothness of itself rotating and with sprocket wheel between cooperate whether smooth and easy, and the chain of unimodality also can't reach above-mentioned double effects simultaneously at present, makes the practicability of chain be subjected to great restriction.

Summary of the invention

Chain of the present utility model is formed by plurality of elements assembly serial connection, each unit block is by two outer plates, two inner plates and a chain roller, two chain pins are formed, the arc surface pin-and-hole place stretch flange formability of inner plate one side wherein, the pin-and-hole place of the arc surface of opposite side forms concave arc edge, form the oil-containing space in the concave arc edge, when two inner plates and fashionable, the chain roller free to rotate of pulling is just worn at the flange place of two correspondences, two concave arc edges then are the bottom and support the state of pulling, oil-containing space in the concave arc edge of carrier bar direction outward, then can supply ccontaining grease, so insert the outer plate of a side respectively when two chain pins, the inner plate of inner plate and other side, during outer plate, even also can have chain roller free to rotate in the same unit block simultaneously and possess the structure of lubricating effect.

So utilize the design of above-mentioned chain, for the user, it utilizes formed oil-containing space in the inner plate, and suitable lubricating between inner plate and chain pin is provided, and improves the purpose that chain rotates smoothness to reach; In single chain, utilize each unit block to possess simultaneously can to make the smooth and easy rotation of chain and can with the double effects of the smooth and easy clamping of sprocket wheel; For the manufacturer, need not utilize different production procedure to make different types again and only can possess the chain of simple function, no matter all simplifying to some extent aspect manufacture cost, the assembly cost; For the person of selling, the chain of unimodality can provide two kinds of demands, and avoids too much occupied ornament space of product, and therefore the chain structure of a true tool practicability can be provided.

The accompanying drawing summary

Fig. 1 is the stereo appearance figure of the utility model chain unit assembly.

Fig. 2 is the three-dimensional exploded view of the utility model chain unit assembly.

Fig. 3 is the inner plate External view of the utility model chain unit assembly.

Fig. 4 is the combination view of the utility model chain unit assembly.

Embodiment

The utility model mainly forms cyclic form by plurality of elements assembly serial connection, the annular link chain that utilizes joint member to form again.

Shown in Fig. 1-2, it is made up of with a chain roller 30 and two chain pins 40,41 with the inner plate 20 of form with outer plate 10, the two-phase of form two-phase.Wherein, the two ends of outer plate 10 have arc surface 11 respectively, form pin-and-hole 12 in arc surface 11, and pin-and-hole 12 is a taper hole form as shown in Figure 1, also can be the form in smooth hole.

Inner plate 20 its two ends are asymmetrical design, please cooperate referring to shown in Figure 3, wherein pin-and-hole 22 places in the arc surface 21 of an end are extended with flange 23, arc surface 24 places of the other end are extended with concave arc edge 25, this concave arc edge 25 is bottom 251 form outwardly, and forms oil-containing space 26 in inside, and the joining place of oil-containing space 26 and pin-and-hole 27, the form of inclined-plane linking also can be the form that the plane is connected as shown in Figure 3.

When group is established, please cooperate referring to Fig. 2 and shown in Figure 4, internal diameter can be arranged in flange 23 places of two inner plates 20 greater than the chain roller 30 of flange 23 external diameters of inner plate 20, the state that makes two inner plates 20 have two flanges 23 correspondences, and make chain roller 30 be able to freely rotate, this moment, the concave arc edge 25 of two inner plates 20 also had bottom 251 state of contact, make oil-containing space 26 establish the direction of outer plate 10 towards the desire group, outer plate 10 can be positioned over inner plate 20 outsides afterwards, utilize chain pin 40 to cooperate riveting fixed with outer plate 10 again, the unit block of promptly forming chain, and grease can be placed in the oil-containing space 26 of above-mentioned inner plate 20, make grease be infiltrated inner plate 20 and chain pin 40 contacting points, reach lubricated purpose.

So be connected in series the chain that forms by the said units assembly, possesses chain roller free to rotate, when chain is cooperated with sprocket wheel, sprocket wheel is snapped between chain swimmingly, reach the effect of smooth and easy clamping, the smoothness that the chain tip in this chain is rotated promotes, and make the rotation of chain more accessible, so for the user, single chain promptly possesses double effects, avoids how selecting the puzzlement of suitable pattern chain, for the manufacturer, get final product single production procedure, can produce the chain of many effects again, can save manufacture cost simultaneously, for the person of selling, under the multi-functional situation of product, also need not hoard the chain of the multiple pattern of ornaments, so a chain structure that has more practicability can be provided.

Claims

1. improved type chain, this chain is made up of four assemblies polyphone, be respectively two outer plates, two inner plates, be located between two inner plates the chain roller and with the chain pin of outer plate, inner plate pin joint one, it is characterized in that:

These outer plate two ends are arc surface, form pin-and-hole in the arc surface;

The pin-and-hole place of one end arc surface of this inner plate is extended with flange, and the pin-and-hole place of the other end arc surface is formed with bottom concave arc edge outwardly, forms the oil-containing space in the concave arc edge;

This chain roller can snap in for the chain plate flange of two corresponding combinations;

This chain pin can insert inner plate, the outer plate of outer plate, inner plate and other side of a side respectively, and it is connected in the pivot joint mode.

2. improved type chain as claimed in claim 1 is characterized in that: be connected with the inclined-plane between the oil-containing space of inner plate and pin-and-hole.