CN202971742U

CN202971742U - Roller chain

Info

Publication number: CN202971742U
Application number: CN 201220693350
Authority: CN
Inventors: 李奇伟
Original assignee: CHANGZHOU SAIQI CHAIN DRIVE Co Ltd
Current assignee: CHANGZHOU SAIQI CHAIN DRIVE Co Ltd
Priority date: 2012-12-16
Filing date: 2012-12-16
Publication date: 2013-06-05
Anticipated expiration: 2022-12-16

Abstract

The utility model discloses a roller chain which comprises outer chain plates, inner chain plates, a roller, a sleeve barrel and a pin shaft, wherein two ends of the pin shaft are inserted in pin holes in the two outer chain plates, the sleeve barrel is sleeved on the shaft body of the pin shaft, two ends of the sleeve barrel are inserted in pin holes in the two inner chain plates, and the roller is sleeved on the barrel body of the sleeve barrel. The height h1 of each outer chain plate is 0.93-0.96 times as large as of the pitch P and the height h2 of each inner chain plate is 0.93-0.96 times as large as of the pitch P, namely 0.93P <= h1 <= 0.96P and 0.93P <= h2 <= 0.96P. The thickness t1 of each outer chain plate is 0.12-0.17 times as large as of the pitch P and the thickness t2 of each inner chain plate is 0.12-0.17 times as large as of the pitch P, namely 0.12P <= t1 <= 0.17P and 0.12P <= t2 <= 0.17P. According to the roller chain, strength of the chain is improved by more than 10%, the service life is long, the structural parameter of any component matched with the chain does not need to be changed, and using cost is low.

Description

A kind of roller chain

Technical field

The utility model relates to a kind of chain, especially roller chain for the machine power transmission.

Background technique

Roller chain is the basic part in mechanical parts, and roller chain normally is used in lifting (dragging chain), and the occasion such as other specific uses (extraordinary chain) of transfer (Conveying chains), the weight of transmission of power (Transmitted chains), the object of machinery.

Existing roller chain is all standardized products, they all meet the physical dimension of standard GB/T/T1243-2006 " transmission short pitch precision roller chain, bushing chain, annex and sprocket wheel " regulation, stipulated in this standard that Transmitted chains divides two series, i.e. A series and B series.in real mechanical transmission, often be subjected to spatial position or speed, the restriction of speed ratio, can only select the chain of a certain specification, for example certain equipment adopts 32A model or the 32B model of same pitch, the roller chain intensity of 32A model is 222.4kN, the roller chain intensity of 32B model is 250kN, in use, no matter be the roller chain of 32A model or 32B model, its intensity is all inadequate, very fast in use (as a week) will fracture, life-span is short, but, can't select again the roller chain (intensity is large) of high one grade of standard size in the use of chain due to the product of the restriction of mechanical space or design typification and batch production, can only frequently change this chain, affect the use of equipment, and poor reliability, user cost is high.

Summary of the invention

The purpose of this utility model is to provide a kind of chain intensity that can improve more than 10%, and the roller chain of the structural parameter of the relevant Component that match to chain is grown and do not needed to change to the life-span.

in order to achieve the above object, the technical solution of the utility model is: a kind of roller chain, comprise outer plate, inner plate, roller, sleeve and bearing pin, the two ends of wherein said bearing pin are inserted in the pin-and-hole of two outer plates, described sleeve set is on the axle body of bearing pin, the two ends of sleeve are inserted in the pin-and-hole of two inner plates, described roller sleeve is contained on the stack shell of sleeve, the height h1 of described outer plate and the height h2 of inner plate are 0.93-0.96 times of pitch P, be also 0.93P≤h1≤0.96P, 0.93P≤h2≤0.96P, the thickness of slab t1 of described outer plate and the thickness of slab t2 of inner plate are 0.12-0.17 times of pitch P, be also 0.12P≤t1≤0.17P, 0.12P≤t2≤0.17P.

The thickness of slab t1 of described outer plate is 0.12-0.14 times of pitch P, and the thickness of slab t2 of described inner plate is 0.15-0.17 times of pitch P, is also 0.12P≤t1≤0.14P, 0.15P≤t2≤0.17P.

The height h1 of described outer plate is less than or equal to the height h2 of inner plate, is also h1≤h2.

After adopting said structure, be the 0.93-0.96 of pitch P due to the height of described outer plate and inner plate, the thickness of slab of described outer plate and inner plate is the 0.12-0.17 of pitch P, therefore, chain intensity is strengthened, and shows through test, roller chain of the present utility model, for example specification is still the chain of 32 models, more than its chain intensity can reach 300 kN, increases more than 10% than former 32A, 32B model chain intensity; Next be the utility model can with former mechanical equipment coordination, do not need to change the structural parameter (drive sprocket is with constant by the centre distance of movable sprocket, and the specification of sprocket wheel is constant, and speed ratio is constant etc.) of any and the Component that chain matches, just can replace original chain to use, and long service life, no longer need to change continually chain, reduced trouble, improved manufacturing efficiency, alleviate workman's labor intensity, thereby do not affected the use of equipment, and the good reliability of equipment.Factory can use material and the work clamp mould of existing standard in the process of producing roller chain, and user cost is low.The present invention is suitable for the equipment needs of superhigh strength (with respect to standard chain intensity).

Description of drawings

The embodiment who provides below in conjunction with accompanying drawing is described in further detail the utility model.

Fig. 1 is the structural representation of roller chain of the present utility model;

Fig. 2 is the linkage structure schematic diagram of the joint outer plate of one in the utility model and a joint inner plate;

Fig. 3 is the plan view of Fig. 2.

Embodiment

as Fig. 1, 2, shown in 3, a kind of roller chain of the present utility model, comprise outer plate 1, inner plate 2, roller 3, sleeve 4 and bearing pin 5, the two ends of wherein said bearing pin 5 are inserted in the pin-and-hole 1-1 of two outer plates 1, described sleeve 4 is sleeved on the axle body of bearing pin 5, the two ends of sleeve 4 are inserted in the pin-and-hole 2-1 of two inner plates 2, described roller 3 is sleeved on the stack shell of sleeve 4, a, the height h2 of the height h1 of described outer plate (1) and inner plate (2) is 0.93-0.96 times of pitch P, be also 0.93P≤h1≤0.96P, 0.93P≤h2≤0.96P,

The thickness of slab t2 of the thickness of slab t1 of b, described outer plate (1) and inner plate (2) is 0.12-0.17 times of pitch P, is also 0.12P≤t1≤0.17P, 0.12P≤t2≤0.17P.

As shown in Figure 3, the thickness of slab t1 of described outer plate (1) is 0.12-0.14 times of pitch P, and the thickness of slab t2 of described inner plate (2) is 0.15-0.17 times of pitch P, is also 0.12P≤t1≤0.14P, 0.15P≤t2≤0.17P.The height h1 of described outer plate 1 is less than or equal to the height h2 of inner plate 2, is also h1≤h2.

Above-mentioned pitch P shown in Figure 1 refers to the distance between the central axis of two rollers 3.

Claims

1. roller chain, comprise outer plate (1), inner plate (2), roller (3), sleeve (4) and bearing pin (5), the two ends of wherein said bearing pin (5) are inserted in the pin-and-hole (1-1) of two outer plates (1), described sleeve (4) is sleeved on the axle body of bearing pin (5), the two ends of sleeve (4) are inserted in the pin-and-hole (2-1) of two inner plates (2), described roller (3) is sleeved on the stack shell of sleeve (4), it is characterized in that:

The height h2 of the height h1 of a, described outer plate (1) and inner plate (2) is 0.93-0.96 times of pitch P, is also 0.93P≤h1≤0.96P, 0.93P≤h2≤0.96P,

2. roller chain according to claim 1, it is characterized in that: the thickness of slab t1 of described outer plate (1) is 0.12-0.14 times of pitch P, the thickness of slab t2 of described inner plate (2) is 0.15-0.17 times of pitch P, is also 0.12P≤t1≤0.14P, 0.15P≤t2≤0.17P.

3. roller chain according to claim 1 and 2, it is characterized in that: the height h1 of described outer plate (1) is less than or equal to the height h2 of inner plate (2), is also h1≤h2.