CN2591331Y

CN2591331Y - Chain

Info

Publication number: CN2591331Y
Application number: CN 02295118
Authority: CN
Inventors: 吴能家
Original assignee: GUIMENG ENTERPRISE CO Ltd
Current assignee: GUIMENG ENTERPRISE CO Ltd
Priority date: 2002-12-24
Filing date: 2002-12-24
Publication date: 2003-12-10
Anticipated expiration: 2012-12-24

Abstract

The utility model relates to a chain which is formed by that a plurality of concatenation units are connected in series. Every concatenation unit comprises two inner chain plates which are oppositely arranged, two outer chain plates and a chain shaft which is connected with the inner chain plates and the outer chain plates in series, wherein the inner chain plates are provided with two end parts which are separated from left to right. A hollow inner flange and an inner through hole which is defined by one enclosing wall of the hollow inner flange are respectively arranged on each end part. The outer chain plates are provided with two end parts which are separated from left to right. A hollow outer flange and an outer through hole which is defined by one enclosing wall of the hollow outer flange are respectively arranged on each end part. The chain is characterized in that the hollow outer flanges of the outer chain plates are protruded towards outer sides which are far away from the inner chain plates, and the enclosing walls of the outer chain plates and the chain shaft are combined in a close fit mode.

Description

Chain

[technical field]

The utility model relates to a kind of chain, particularly relates to a kind ofly improveing at outer plate, to increase oil storage space, promotes the chain of inner plate structural strength simultaneously.

[background technique]

Chain is a kind of often being used on locomotive, bicycle, the mechanical transmission, to carry out the article of transmission of power, in order to make chain more smooth and easy in the running, generally all can in chain, add lubricant oil, certainly lubricant oil is if can be stored effectively, it is more convenient not only to make maintenance go up, and also can prolong the working life of chain.But regardless of the chain use occasion, chain in design roughly as shown in Figure 1 in the past, be to form by majority serial connection unit 1 serial connection, each serial connection unit 1 all comprises: the lining 12, an axle sleeve that two inner plates 11, that are provided with at interval are attached at 11 of two inner plates rolls 13, two each intervals and the position outer plate 14 in homonymy inner plate 11 outsides in these lining 12 outer periphery and between the chain of 11 of two inner plates, and a chain rivet 15 that passes outer plate 14 and lining 12 and two axial ends riveted.All have two on each inner plate 11 between left and right every the perforation 111 that also wears, and also be to have two on each outer plate 14 between left and right every the perforation 141 that also wears for chain rivet 15 for lining 12.

In the past chain tensile strength many except the assembly of necessity in design,

carrier bar

11,14 relatively poor, when lubricant oil adds each inter-module of chain, lubricant oil can only be stored in 11,14 of two adjacent inside and outside carrier bars, cause lubricant oil to run off easily, and disappearance such as chain working life is short.Because the thickness of outer plate 14 is little, after 14 groups of chain rivet 15 and outer plates stand, gets loose, separate simultaneously, must carry out the riveted processing procedure to the two axial ends of chain rivet 15 in the upright back of group, comparatively loaded down with trivial details in the manufacturing.

Disappearances such as assembly is many in order to improve, the upright operation of group is many, other has a kind of chain in the past shown in Fig. 2,3, this chain also is to be formed by majority serial connection unit 2 serial connections, each serial connection unit 2 all comprises: two inner plates 21 that are provided with at interval, two respective bits are at the outer plate 22 in homonymy inner plate 21 outsides, and the chain rivet 23 of serial connection two inner plates 21 and two outer plates 22.Each inner plate 21 all have two between left and right every end 211, an inner flanch 212 distinctly is set, and an interior perforation 213 of defining by a surrounding wall of this inner flanch 212 on each end 211.Inner plate 21 is identical and the structure of each outer plate 22 is made peace greatly, and have two between left and right every end 221, one outer bead 222 distinctly is set on each end 221, and an outer perforation 223 of defining by a surrounding wall of this outer bead 222, wherein should in the diameter of perforation 213 greater than the diameter of this outer perforation 223.

The inner flanch 212 of two inner plates 21 is oppositely arranged, and the outer bead 222 of these outer plates 22 is towards homonymy inner plate 21, and corresponding interior perforation 213 is inserted on the inner plate 21, wears this chain rivet 23 at last, and on the two axial ends of chain rivet 23, impose riveted, just finish assembling.Though this kind three kinds of assembly chains in the past have than the chain of Fig. 1 in design: assembly is simplified, is organized upright operation and reduces, and effect such as inside and

outside carrier bar

21,22 tensile strength and fatigue resistance be good.But there is following disappearance in design in chain:

One, the structural strength of inner plate 21 is not good: though chain can be by the formation of inner flanch 212 in the past, increase the structural strength of this inner plate 21, but because the outer bead 222 of the outer plate 22 of chain was to stretch into toward the interior perforation 213 of inner plate 21 in the past, therefore the essential amplification of interior perforation 213 diameters of this inner plate 21 just can allow the outer bead 222 of outer plate 22 stretch into.Under the identical preceding topic of inner plate 21 length, the increasing of perforation 213 diameters in being somebody's turn to do, the surrounding wall that can cause inner flanch 212 reduces to the dwindling of distance between 211 edges, end, structural strength, and when external force acted on the chain, this chain was easily by 211 places, the end fracture of inner plate 21.

Two, lack in oil storage space deficiency, working life: chain was in the use in order to keep each inter-module smooth degree of running relatively in the past, can on chain, add lubricant oil, when lubricant oil is added in the past on the chain, lubricant oil can be entered by the space of 21,22 of adjacent inside and outside carrier bars, is stored in 212,222 of coaxial inside and outside corresponding inside and outside beads then.Though the design of this oil storage is good than the chain in the past of Fig. 1, be subjected to the restriction that outer bead 222 stretches into toward interior perforation 213, the space of its oil storage is still very limited, and the lubricant oil that needs in the time of can't providing chain operation for a long time causes chain not long working life.

[model utility content]

The purpose of this utility model is that a kind of structural strength that can improve inner plate is being provided, and increases the chain in oil storage space and working life simultaneously.

Chain of the present utility model is to be formed by majority serial connection unit serial connection, and each serial connection unit all comprises: two inner plates that are provided with relatively, two respective bits are at the outer plate in the homonymy inner plate outside, and a chain rivet that passes these inside and outside carrier bars.These outer plates all have two between left and right every the end, the outer bead of a hollow and an outer perforation that a surrounding wall of bead defines outside this distinctly are set on each end.

Of the present utility model being characterised in that: the outer bead of this outer plate is toward outstanding away from the outside of inner plate, and the surrounding wall of outer plate and chain rivet are the drive fit combination.

Whereby can be under the preceding topic of the interior penetration hole diameter that does not strengthen inner plate, at the surrounding wall and the chain between centers of inner plate, and the surrounding wall of outer plate and chain between centers are out of the ordinary forms a space that stores lubricant oil, to prolong the working life of this chain.

[description of drawings]

Below by most preferred embodiment and accompanying drawing chain of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is an a kind of not complete assembled sectional view of chain in the past.

Fig. 2 is another not complete three-dimensional exploded view of chain in the past.

Fig. 3 is not complete assembled sectional view of Fig. 2 chain.

Fig. 4 is not complete three-dimensional exploded view of a preferred embodiment of the utility model chain.

Fig. 5 is not complete assembled sectional view of this preferred embodiment.

[embodiment]

Consult Fig. 4,5, chain 3 of the present utility model also is to be formed by majority serial connection unit 30 serial connections, each serial connection unit 30 all comprises: two inner plates 31 that relatively are provided with, two respective bits pass the chain rivet 33 of these inside and

outside carrier bars

31,32 at the outer plate 32, in homonymy inner plate 31 outsides, and-chain roller 34.Wherein these inner plates 31 all have two between left and right every end 311, the inner flanch 312 of a hollow distinctly is set, and an interior perforation 314 of defining by a surrounding wall 313 of this inner flanch 312 on each end 311.And these outer plates 32 all have two between left and right every end 321, the outer bead 322 of a hollow and an outer perforation 324 that a surrounding wall 323 of bead 322 defines outside this distinctly are set on each end 321.And this chain rivet 33 has the axle head 331 of two positions on opposition side, and it is the interior perforation 314 of passing two inner plates 31, and the outer perforation 324 of two

outer plates

32, and 34 on this chain roller is to be set between the outer periphery of the inner flanch 312 that is oppositely arranged on two inner plates 31.The utility model can omit this chain roller 34 in design.

Of the present utility model being characterised in that: the outer bead 322 of this outer plate 32 is outstanding toward the outside away from homonymy inner plate 31, and chain rivet 33 is to be 323 of the surrounding walls that the drive fit mode is combined in two outer plates 33, and the slightly larger in diameter of perforation 314 bores a hole 324 in being somebody's turn to do outside this, makes two inner plates 31 be able to freely rotate with respect to chain rivet 33.After the installation, form one first oil storage space 35 between the surrounding wall 313 of this inner plate 31 and the surface of chain rivet 33, and also can form one second oil storage space 36 between the surface of the surrounding wall 323 of outer plate 31 and chain rivet 33.

Chain 3 of the present utility model when mounted, be inner flanch 322 outer periphery that chain roller 34 axle sleeves are oppositely arranged on two inner plates 31, and this chain rivet 33 is the interior perforation 314 of passing two inner plates 31, and these outer plates 32 are to be on the friction tight two axial ends 331 that distinctly is installed in chain rivet 33.The back is installed is friction tight binding because the surrounding wall 323 of outer plate 32 is axle heads 331 with chain rivet 33, and has one section long obvolvent area when linking, therefore the utility model needn't impose riveted processing again after installation, just can make chain rivet 33 and outer plate 32 firm combinations, omit the operation of riveted whereby.When lubricant oil was added on the chain 3, lubricant oil can be by 31,32 surfaces that flow to chain rivet 33 of adjacent inside and outside carrier bar, and also first and second

oil storage space

35,36 was mobile in the past for lubricant oil simultaneously, and was stored in these

oil storage space

35,36.

In design, the utility model also can connect two inner plates 31 with a lining, that is to say, the utility model is not necessity so that inner flanch 312 to be set on inner plate 31.

By above explanation as can be known, chain 3 of the present utility model except the riveted operation that can omit chain rivet 33, inside and outside bead 312,322 outstanding, the structural strength that also can promote inside and

outside carrier bar

31,32, and the chain in the past of the utility model and Fig. 2 is compared, and has more following effect:

One, can further improve the structural strength of inner plate 31: comparison diagram 3 and Fig. 5, the outer bead 322 of the outer plate 32 that the utility model is designed is outstanding toward the outside away from homonymy inner plate 31, therefore interior perforation 314 diameters of this inner plate 31 are only little greater than chain rivet 33 diameters in design, the too big design of needn't increasing of above-mentioned inner plate 31 apertures, can be in the end 311 edges to 313 bigger width of reservation of surrounding wall, therefore this design of the utility model not only can be by the structural strength of the outstanding increase outer plate 32 of outer bead 322, and the structural strength of this inner plate 31 is also preferable.

Two, oil storage space increases, can prolong the working life of chain 3: the utility model is by the outwards outstanding design of the outer bead 322 of outer plate 32, not only can improve the structural strength of outer plate 32, the outer bead 322 of evagination also can form second oil storage space 36 at

outer plate

32 and 33 of chain rivets, and therefore 33 of this inner plate 31 and chain rivets also constitute first oil storage space 35, above-mentioned inside and outside corresponding

oil storage space

35,36 can store more lubricant oil, so as to improving the working life of chain 3.

Claims

1, a kind of chain is to be formed by majority serial connection unit serial connection, and each serial connection unit all comprises: two inner plates that are provided with relatively, two respective bits are at the outer plate in the homonymy inner plate outside, and a chain rivet that passes these inside and outside carrier bars; And these outer plates all have two between left and right every the end, the outer bead of a hollow distinctly is set, and an outer perforation of defining by a surrounding wall of this outer bead on each end; It is characterized in that:

The outer bead of this outer plate is toward outstanding away from the outside of homonymy inner plate, and the surrounding wall of outer plate and chain rivet are combination tightly.

2, chain as claimed in claim 1 is characterized in that: these inner plates all have two between left and right every the end, the inner flanch of a hollow distinctly is set, and an interior perforation of defining by a surrounding wall of this inner flanch on each end.

3, chain as claimed in claim 2 is characterized in that: this chain more comprises the chain roller of an axle sleeve between the inner flanch outer periphery of two relative inner plates.