CN2646474Y

CN2646474Y - Four-element chain

Info

Publication number: CN2646474Y
Application number: CN 03207840
Authority: CN
Inventors: 吴能家
Original assignee: GUIMENG ENTERPRISE CO Ltd
Current assignee: GUIMENG ENTERPRISE CO Ltd; KMC Chain Industrial Co Ltd
Priority date: 2003-08-18
Filing date: 2003-08-18
Publication date: 2004-10-06
Anticipated expiration: 2013-08-18

Abstract

The utility model discloses a chain which consists of an internal chain slice, an external chain slice, a rolling chain and a chain shaft. Wherein, the internal chain slice comprises two left and right end parts, with both of which have a base wall and a flange stretching form the base wall. An internal through hole crosses through the base wall, the flange and the chain shaft. The utility model is characterized in that the rolling chain comprises an enclosure ring wall in the base wall chamber of the opposite internal chain slice, a supporting ring wall radially stretching out from the one internal ring plane of the enclosure ring wall, and one shaft hole formed by the enclosure of the enclosure ring wall and the supporting ring wall. The shaft hole has two radius enlarging sections separated internally and externally for inserting the flange of the internal chain slice, and a radius shrinking section inside the radius enlarging sections and around the chain shaft.

Description

Quaternary part chain

(1) technical field

The utility model relates to a kind of chain, particularly relates to a kind of being rolled by inner chain sheet, outer chain sheet, chain rivet and chain and organizes the upright chain that forms.

(2) background technique

The design of five element chains in the past as shown in Figure 1, be to form by a plurality of serial connections unit 1 serial connection, each serial connection unit 1 all comprises: the lining 12, an axle sleeve that the inner chain sheet 11, of two internal and external partitions is used for connecting two inner chain sheets 11 in lining 12 outsides and the position roll 13, two internal and external partitions and respective bits outer chain sheet 14 at the chain of 11 of this inner chain sheets, an and chain rivet 15 that runs through an axis hole 121 of this outer chain sheet 14, lining 12 in inner chain sheet 11 outsides.This five element chains are when being subjected to external force and being pulled, and axis hole 121 internal faces of this lining 12 can rely on chain rivet 15 surfaces, so chain rivet 15 is very even when stressed, and the abrasion resistance of chain is also relatively good.But shortcoming is that the number of elements of each serial connection unit 1 is many, and the cost when making and assembling is higher.

In order to improve the high shortcoming of five element manufacture costs that chain produces, a kind of quaternary part chain is as shown in Figure 2 arranged on the market in addition, this quaternary part chain is to be formed by a plurality of serial connections unit 2 serial connection equally, and each serial connection unit 2 all comprises: outer chain sheet 22, a chain of two internal and external partition inner chain sheets 21, two internal and external partitions roll 23 and one chain rivet 24.Wherein this inner chain sheet 21 all have two between left and right every end 211, all has a basal wall 212, on each end 211 from the outstanding bead 213 of basal wall 212 one, an and interior perforation 214 that connects basal wall 212 and bead 213, because the bead 213 of this inner chain sheet 21 can replace the lining of five element chains shown in Figure 1, therefore this quaternary part chain can omit lining, and this chain rolls 23 are axle sleeve bead 213 outer periphery at this opposed inner chain sheet 21, and this chain rivet 24 passes the interior perforation 214 of outer chain sheet 22 and inner chain sheet 21 equally.

Quaternary part chain shown in Figure 2 because the bead 213 of inner chain sheet 21 can replace lining, therefore can omit the manufacturing and the number of assembling steps of lining, and have cost-effective effect in design on installing and making.But aspect wear resistance, because 213 of opposed beads have a gap 25 on the inner chain sheet 21, therefore when chain is subjected to the external force drawing, the strength that is pulled is concentrated between the internal face of chain rivet 24 and interior perforation 214, that is to say, the pulling force that chain rivet 24 is born is to concentrate on partly section, and stressed and inhomogeneous, described discontinuity can produce bigger abrasion.Though obviously the chain rivet 15 of five element chains is comparatively even when stressed in the past, its manufacture cost is higher, though and quaternary part chain can reduce manufacture cost, chain rivet 24 unbalance stress of can deriving, and shortcoming such as wear no resistance.

(3) model utility content

The purpose of this utility model is under the topic, can improve the quaternary part chain of stressed uniformity of chain rivet and wear resistance providing a kind of before cost-effective.

Quaternary part chain of the present utility model is to be formed by a plurality of serial connections unit serial connection, each serial connection unit all comprises: the inner chain sheet of two internal and external partitions, two internal and external partitions and respective bits are rolled at the chain of outer chain sheet, between between this inner chain sheet in the homonymy inner chain sheet outside, an and chain rivet that passes inside and outside chain sheet, wherein this inner chain sheet all comprise two between left and right every the end, each end all has a basal wall, a bead from the extension of basal wall one, and an interior perforation that runs through basal wall and bead and pass for chain rivet, perforation has an orifice ring face in it.

Characteristics of the present utility model are: this chain agglomeration is drawn together: one between the basal wall of opposed inner chain sheet around ring wall, from should be around an inner ring surface of ring wall footpath inwardly prominent against ring wall, and one by the axis hole that forms around ring wall and against the ring wall corral, described axis hole has two internal and external partitions and expands section for the footpath that the bead of inner chain sheets stretches into, and one is directly expanded the intersegmental footpath section of contracting that is formed by the abutment facing corral against ring wall at this.

Orifice ring face by this abutment facing and inner chain sheet is encircled this chain rivet jointly, can make chain rivet more even when bearing pulling force, improves the abrasion resistance of chain simultaneously.

(4) description of drawings

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

Fig. 1 is an a kind of complete combination sectional view not of five element chains in the past.

Fig. 2 is an a kind of complete combination sectional view not of the part of quaternary in the past chain.

Fig. 3 is not complete three-dimensional exploded view of a preferable possible embodiments of the utility model chain.

Fig. 4 is not complete sectional exploded view of this preferred embodiment.

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

(5) embodiment

Consult Fig. 3,4, the preferred embodiment of the utility model chain also is to be formed by a plurality of serial connections unit 3 serial connection, and each serial connection unit 3 all comprises: outer chain sheet 32, a chain of the inner chain sheet of two internal and external partitions 31, two internal and external partitions roll 33, and a chain rivet 34.

Wherein each inner chain sheet 31 all comprise two between left and right every rounded ends 311, an and waist 312 that is engaged on 311 of this ends, this end 311 all have one and the straight basal wall 313, in succession of waist 312 from this basal wall 313 toward the outstanding bead 314 of another inner chain sheets 31, and an interior perforation 315 that runs through basal wall 313 and bead 314, aforementioned in perforation 315 have an orifice ring face 316.And this outer chain sheet 32 is dull and stereotyped designs, each outer chain sheet 32 all have two between left and right every rounded ends 321, an and waist 322 that is engaged on 321 of this ends all offers one and interior perforation 315 inside and outside corresponding outer perforation 323 on each end 321.

Chain of the present utility model rolls 33 and is the hollow ring round, comprise one 313 of the basal walls of opposed inner chain sheet 31 around ring wall 331, one 314 of the beads of inner chain sheet 31 against ring wall 332, and one by this around ring wall 331 with define the axis hole 333 that forms against ring wall 332, one inner ring surface 334, an outer ring surface 335 that wherein should have coaxial setting around ring wall 331, and should be by radially outstanding around the inner ring surface 334 of ring wall 331 against ring wall 332, it on and have one and encircle abutment facing 336.333 of this axis holes are that section 337 is expanded in the footpath with two internal and external partitions, and one in this directly 337 of sections of expansion and the footpath section of contracting 338 that formed by abutment facing 336 corrals.

Described width around ring wall 331 just equals the distance of 313 of basal walls on the opposed inner chain sheet 31, and the length of this bead 314 is equal to or less than the degree of depth that section 337 is expanded in the footpath, and the diameter of this abutment facing 336 just equals the external diameter of chain rivet 34.And this chain rivet 34 can be the solid body of rod or the hollow body of rod, and it is to pass the outer perforation 323 of outer chain sheet 32, the interior perforation 315 of inner chain sheet 31, and the axis hole 333 of chain rivet 33.

Cooperate Fig. 5, the utility model chain is after group is upright, the bead 314 of this inner chain sheet 31 can stretch into chain and roll 33 footpath and expand section 337, and the interior perforation 315 of this inner chain sheet 31 and chain roll on 33 the external diameter that the internal diameter at the section of contracting 338 places, footpath just equals chain rivet 34, therefore after group is upright should in bore a hole that 315 orifice ring face 316 and chain roll that 33 abutment facing 336 can be encircled the surface of chain rivet 34 jointly and stressed jointly.Be pulled and do the time spent when chain is subjected to one, because orifice ring face 316 and abutment facing 336 can rely on the outer surface of chain rivet 34 together, therefore the active force that born of chain rivet 34 can be distributed to orifice ring face 316 and abutment facing 336 uniformly, so as to improving the abrasion resistance of chain rivet 34.

By above explanation as can be known, the advantage that reduces cost is not only possessed in the design of this quaternary part chain of the utility model, and its chain rolls on 33 toward radially outstanding against ring wall 332, has more to make chain rivet 34 stressed evenly, and improves effect such as chain abrasion resistance.

Claims

1. quaternary part chain, be to form by a plurality of serial connections unit serial connection, each serial connection unit all comprises: the inner chain sheet of two internal and external partitions, two internal and external partitions and respective bits are rolled at the chain of outer chain sheet, between between this inner chain sheet in the homonymy inner chain sheet outside, an and chain rivet that passes inside and outside chain sheet, wherein this inner chain sheet all comprise two between left and right every the end, each end all has a basal wall, a bead from the extension of basal wall one, and one runs through the interior perforation that basal wall and bead and confession chain rivet pass; It is characterized in that:

This chain agglomeration is drawn together: one between the basal wall of opposed inner chain sheet around ring wall, from should be around an inner ring surface of ring wall footpath inwardly prominent against ring wall, and one by the axis hole that forms around ring wall and against the ring wall corral, described axis hole has two internal and external partitions and expands section for the footpath that the bead of inner chain sheets stretches into, and one is directly expanded the footpath section of contracting intersegmental and that formed by the abutment facing corral against ring wall at this.

2, quaternary part chain as claimed in claim 1, it is characterized in that: this chain rivet is the solid body of rod.

3, quaternary part chain as claimed in claim 1 is characterized in that: the distance between the basal wall of this opposed inner chain sheet equals the width around ring wall.

4, quaternary part chain as claimed in claim 1 is characterized in that: the bead length of this inner chain sheet equals the degree of depth that section is expanded in the footpath.

5, quaternary part chain as claimed in claim 1 is characterized in that: the bead length of this inner chain sheet expands the degree of depth of section less than the footpath.