CN103016615A

CN103016615A - Roller chain

Info

Publication number: CN103016615A
Application number: CN2012105432407A
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: 2013-04-03

Abstract

The invention discloses a roller chain, which comprises external link plates, internal link plates, a roller, a sleeve and a pin shaft, wherein two ends of the pin shaft are inserted into the pin holes of the two external link plates; the sleeve is sleeved on the shaft body of the pin shaft; two ends of the sleeve are inserted into the pin holes of the two internal link plates; a roller is sleeved in the body of the sleeve; the height h1 of the external link plates and the height h2 of the internal link plates are 0.93-0.96 times of a pitch P, namely h1 is equal to or greater than 0.93P and less than or equal to 0.96P, and h2 is equal to or greater than 0.93P and less than or equal to 0.96P; the thickness t1 of the external link plates and the thickness t2 of the internal link plate are 0.12-0.17 times of the pitch P, namely t1 is greater than or equal to 0.12P and less than or equal to 0.17P, and t2 is greater than or equal to 0.12P and less than or equal to 0.17P. The roller chain provided by the invention can be used for improving more than 10 percent of the chain strength; the service life of the roller chain is prolonged; the structural parameters of any parts matched with the chain are not required to be changed; and moreover, the user cost is low.

Description

Roller chain

Technical field

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

Background technique

Roller chain is the basic part in the 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 all is 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, and very fast in the use (such as a week) will fracture, and the life-span is short, but, again because the product of the restriction of mechanical space or design typification and batch production can't be selected the roller chain (intensity is large) of high one grade of standard size in the use of chain, can only this chain of frequent, affect the use of equipment, and poor reliability, user cost is high.

Summary of the invention

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

In order to achieve the above object, technological scheme of the present invention 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, also be 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, also be 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, also is 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, also is h1≤h2.

After adopting said structure, because the height of described outer plate and inner plate is the 0.93-0.96 of pitch P, 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 invention, for example specification still is the chain of 32 models, and its chain intensity can reach more than 300 kN, increases more than 10% than former 32A, 32B model chain intensity; Next be the present invention 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 worker's 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 present invention is further detailed explanation below in conjunction with embodiment that accompanying drawing provides.

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

Fig. 2 is the linkage structure schematic representation of the joint outer plate of one among the present invention and a joint inner plate;

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

Embodiment

Such as Fig. 1,2, shown in 3, a kind of roller chain of the present invention, 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 among 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 among 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, also be 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, also is 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, also is 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, also is 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, also is 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, also is 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), also is h1≤h2.