CN201836300U

CN201836300U - Lateral bending chain

Info

Publication number: CN201836300U
Application number: CN2009202945289U
Authority: CN
Inventors: 杨建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-21
Filing date: 2009-12-21
Publication date: 2011-05-18
Anticipated expiration: 2019-12-21

Abstract

The utility model discloses a lateral bending chain, which comprises inner chain elements, outer chain elements and hinge pins. Each inner chain element comprises two sleeves, two rollers and a pair of inner chain plates; each outer chain element comprises two hinge pins and a pair of outer chain plates in bilateral symmetry; the two hinge pins of each outer chain element are in tight fit with the pair of the outer chain plates, the size of the middle part of the site where the lateral bending hinge pins contact with the sleeves is not changed, and the two sides are processed into tapered pins to form non-uniform clearance with the sleeves, so as to achieve lateral bending function. The lateral bending chain provided by the utility model has the characteristics of small lateral bending radius, wide application range, excellent wear-resistant property, etc.

Description

The lateral bending chain

Technical field

The utility model belongs to the transmission device parts, relates in particular to a kind of drive balls delivering chain device.

Background technique

General bush roller chain can only be at the plane inner bending parallel with carrier bar, move along straight line, and require drive sprocket and driven sprocket coplane, the lateral bending roller transport chain then requires to increase chain and also have certain lateral bending ability in the plane vertical with carrier bar, can move along curve with certain curvature radius, in order to realize the function of lateral bending, need increasing gap and the sideshake between interior outer plate between bearing pin and sleeve, is disadvantageous and too increase the gap that bearing pin and sleeve reach between interior outer plate to the rotation precision and the length overall of chain.And do not carry out necessary structural change for original craspedodrome chain, friction factor increases when causing the lateral bending motion, and chain and chain-plate and bearing pin loss strengthen, and noise also strengthens.

The model utility content

The purpose of this utility model is to provide a kind of rational in infrastructure, novel lateral bending chain of reducing working resistance and noise by the innovative design to pin shaft structure.

For achieving the above object, the utility model is achieved through the following technical solutions, the lateral bending chain, comprise inner link, outside links and bearing pin are formed, each inner link all is made up of two rollers of two sleeves and a pair of inner plate, wherein a pair of outer plate of bilateral symmetry and bearing pin are by the trepanning socket on the outer plate, the a pair of inner plate of bilateral symmetry with by the trepanning bearing pin socket on the inner plate, inner plate is positioned at the outer plate inboard, sleeve be positioned at each outer plate inboard and with the bearing pin socket, roller be positioned at each inner plate inboard and with the sleeve socket, outside links is made up of two bearing pins and a pair of outer plate of bilateral symmetry, two sleeves and a pair of inner plate interference fit cooperate with two roller clearances, two bearing pins and a pair of outer plate interference fit of each outside links, the intermediate portion size of lateral bending bearing pin and sleeve contact segment does not become, the taper bearing pin is processed on both sides, produces inhomogeneous gap with sleeve, realizes the lateral bending function.

The beneficial effects of the utility model are the modification in construction by bearing pin, cylindrical bearing pin by being machined into fat shape pin shaft structure, is satisfied the chain Environmental Conditions that has side direction to require, and handling characteristics of the present utility model is that radius of side-bow is little, and the Applicable scope broadness, wear-resisting property is outstanding etc.

Description of drawings

Fig. 1 is the general structure sectional view of the utility model lateral bending chain;

Fig. 2 is the inner link structure sectional view of the utility model lateral bending chain;

Fig. 3 is the outside links structure sectional view of the utility model lateral bending chain;

Among the figure, 1. outer plate, 2. bearing pin, 3. inner plate, 4. sleeve, 5. roller.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

As Fig. 1, Fig. 2 and shown in Figure 3, the lateral bending chain, inner link is arranged, outside links and bearing pin 2 are formed, each inner link all is made up of 4 two rollers of two sleeves and a pair of inner plate 3, wherein a pair of outer plate 1 of bilateral symmetry and bearing pin 2 are by the trepanning socket on the outer plate 1, a pair of inner plate 3 of bilateral symmetry and trepanning bearing pin 2 sockets of passing through on the inner plate 3, inner plate 3 is positioned at outer plate 1 inboard, sleeve 4 be positioned at each outer plate 1 inboard and with bearing pin 2 sockets, roller 5 be positioned at each inner plate 3 inboard and with sleeve 4 sockets, outside links is made up of two bearing pins 2 and a pair of outer plate 1 of bilateral symmetry, two sleeves 4 and a pair of inner plate 3 interference fit, with two roller 5 Spielpassung, two bearing pins 2 of each outside links and a pair of outer plate 1 interference fit, bearing pin 2 does not become with the intermediate portion size of sleeve 4 contact segments, and both sides become fat shape bearing pin, produce inhomogeneous gap with sleeve 4, realize the lateral bending function.

The utility model embodiment's specific embodiment is: the lateral bending shaft diameter is ∮ 4.45cm, and both sides tapering section diameter is ∮ 3.8cm, and tapering length is 4.75mm; The ratio of diameter and tapering diameter is 85.39%.Tapering diameter owing to fat shape bearing pin 2 during work is littler than original diameter, thereby produces bigger gap with sleeve 4, and the size of the intermediate portion 2mm of fat shape bearing pin 2 changes, and therefore, does not influence the length precision of chain.Because increased the gap of bearing pin 2 with sleeve 4, transmission will be moved along the curve with certain curvature radius, thereby make whole piece work both reach kinematic accuracy, obtain the lateral bending function again.

Claims

1. lateral bending chain, inner link is arranged, outside links and bearing pin (2) are formed, each inner link all is made up of (4) two rollers of two sleeves and a pair of inner plate (3), wherein a pair of outer plate of bilateral symmetry (1) and bearing pin (2) are by the trepanning socket on the outer plate (1), a pair of inner plate of bilateral symmetry (3) and trepanning bearing pin (2) socket of passing through on the inner plate (3), inner plate (3) is positioned at outer plate (1) inboard, sleeve (4) be positioned at each outer plate (1) inboard and with bearing pin (2) socket, roller (5) be positioned at each inner plate (3) inboard and with sleeve (4) socket, outside links is made up of two bearing pins (2) and a pair of outer plate of bilateral symmetry (1), two sleeves (4) and a pair of inner plate (3) interference fit, with two rollers (5) Spielpassung, two bearing pins (2) of each outside links and a pair of outer plate (1) interference fit.