CN2377398Y

CN2377398Y - Superstrong 08BC roller chain

Info

Publication number: CN2377398Y
Application number: CN 98227545
Authority: CN
Inventors: 蒋阿生
Original assignee: Li Brand Chain Mfg Co ltd Liya
Current assignee: Li Brand Chain Mfg Co ltd Liya
Priority date: 1998-08-06
Filing date: 1998-08-06
Publication date: 2000-05-10
Anticipated expiration: 2008-08-06

Abstract

The utility model relates to a super strong 08BC roller chain, which is composed of a pin shaft (1), an outer chain plate (2), an inner chain plate (3), rolling balls (4), a shaft sleeve (5) and a vane (6). The utility model thickens the diameter of the pin shaft and enlarges the diameter of the outer circle of the outer chain plate and reduces a clearance between a middle sheet and the pin shaft in order to enhance the pull resistance of a chain and reduce abrasion between the middle sheet and the pin shaft and cause the pin shaft to be wearable and not easy to pull badly, and thus the service life of the chain is prolonged.

Description

A kind of novel superpower 08BC roller chain

The utility model belongs to the 08BC roller chain of using on the machinery such as hand tractor, motorcycle and industrial transmission, belongs to the chain-driven unit in the engineering goods.

Employed 08B roller chains in aspect such as hand tractor, motorcycle and industrial transmission in the market, single-strand chain and double-stranded chain are arranged, bearing pin is thinner, its diameter is 4.45 millimeters, outer plate is little, its outer garden diameter is 10.50 millimeters, and the matching gap in the bearing pin between the sheet is big, and general gap reaches 0.05 millimeter.Because of bearing pin is thin, the anti-pulling force of chain is poor, and outer plate is little also very easily to be damaged, and the gap between bearing pin and the middle sheet is big, and the big and easy kerve of on-stream wearing and tearing owing to the problems referred to above, has influenced the working life of chain significantly.

The objective of the invention is the problem at above-mentioned existence, create a kind of novel superpower 08BC roller chain, the anti-pulling force of this chain is big, and is not easy to wear, and middle sheet and bearing pin wearing and tearing are little, are difficult for kerve, have improved the working life of chain significantly.

Novel superpower 08BC roller chain of the present utility model mainly is to be connected in series outer plate 2 on bearing pin 1 successively, inner plate 3, axle sleeve 5, inner plate 3 and outer plate 2 reach socket one ball 4 compositions on axle sleeve 5, as its structure of double-stranded chain is to be connected in series outer plate 2 on bearing pin 1 successively, inner plate 3, axle sleeve 5, middle sheet 6, axle sleeve 5 inner plates 3, outer plate 2, and socket ball 4 is formed on axle sleeve 5.

The utility model does not change the basic structure of each component in the above-mentioned chain and connecting means between them and mounting point, does not also change the basic parameter in the general part.As: 12.7 millimeters of 08B roller chain pitch, 8.5 millimeters of ball diameters.

Technology official documents and correspondence of the present utility model is: 1, the diameter of overstriking bearing pin 1, and corresponding expansion is enclosed within the outer plate 2 on the bearing pin 1, inner plate 3, the diameter of endoporus in the axle sleeve 5, pin diameter from 4.45 millimeters overstrikings to 4.58 to 4.64 millimeters, the outer plate endoporus is expanded as 4.48 to 4.55 millimeters from 4.34 millimeters, and the axle sleeve diameter of bore expands 4.68 to 4.75 millimeters to from 4.55 millimeters, and the outer garden diameter of axle sleeve is 6.37 millimeters.2, enlarge the outer garden diameter of whole outer plate 2, the outer garden diameter at outer plate two ends expands 11.00 to 11.50 millimeters to from 10.50 millimeters, and the waist in the middle of the outer plate is also done corresponding expansion, promptly enlarges 0.48 to 0.55 millimeter to both sides.3, the diameter of bore of sheet 6 in suitable the expansion, the sheet diameter of bore is 4.48 millimeters in former, now expand 4.58 to 4.65 millimeters to, in between sheet and the bearing pin 1 the gap because of in the spoke degree of sheet diameter of bore increasing less than the spoke degree of bearing pin 1 diameter overstriking thereby dwindled gap between middle sheet and the bearing pin, former gap is 0.05 millimeter and now narrows down to 0.01 to 0.02 millimeter.Since overstriking bearing pin 1 diameter and enlarged the outer garden diameter of outer plate 2, make these two easily damaged partss of bearing pin and outer plate not fragile, thereby increased the anti-intensity of drawing of this chain significantly, owing to reduced the gap between middle sheet and the bearing pin, this has improved the cooperation between them significantly, reduced the friction between them, be difficult for kerve and damaged, technique scheme can improve the working life of the utility model 08BC roller chain significantly in a word.

The utility model roller chain has increased anti-tension strength, not easy to wear and kerve between middle sheet and the bearing pin, thereby the working life of having improved this chain significantly after adopting technique scheme.

Below in conjunction with drawings and Examples the technical solution of the utility model has been done further description.

Fig. 1 is the structural representation of single-strand chain in the utility model 08BC roller chain.

Fig. 2 is the structural representation of the utility model 08BC roller chain double center chain chain.

Fig. 3 is the schematic representation of the utility model 08BC roller chain bearing pin.

Fig. 4 is the schematic representation of the utility model 08BC roller chain outer plate.

Fig. 5 is the schematic representation of the utility model 08BC roller chain axle when being connected with middle sheet.

Respectively marking bis in the accompanying drawing is:

1, bearing pin, 2, outer plate, 3, inner plate, 4, ball, 5, axle sleeve, 6, middle sheet.

Embodiment is: be connected in series outer plate 2, inner plate 3, axle sleeve 5, inner plate, outer plate and socket one ball 4 on axle sleeve 5 on the bearing pin 1 successively.Bearing pin 1 diameter is 4.61 millimeters, and the diameter of bore of outer plate 2 is 4.52 millimeters, and the diameter of bore of axle sleeve 5 is 4.72 millimeters, and the outer garden diameter of axle sleeve is 6.37 millimeters, and the outer garden diameter at outer plate two ends is 11.25 millimeters, and waist enlarges 0.51 millimeter to both sides.

Claims

1, a kind of novel superpower 08BC roller chain, mainly contain bearing pin (1) serial connection outer plate (2), inner plate (3), axle sleeve (5), middle sheet (6) reaches suit ball methods such as (4) composition outside axle sleeve (5), one-tenth single-strand chain capable of being combined, also can form double-stranded chain, the utility model does not change the basic structure of each component in the former chain and connecting means between them and mounting point, also do not change the basic parameter in the general part: as 12.7 millimeters of 08B roller chain pitch, 8.5 millimeters of ball diameters, it is characterized in that: the diameter of overstriking bearing pin (1), and corresponding expansion is enclosed within the outer plate (2) on the bearing pin (1), inner plate (3), the diameter of the endoporus in the axle sleeve (5), the diameter of overstriking bearing pin can improve the anti-intensity of drawing of chain significantly; Enlarge the outer garden diameter of outer plate (2), the tensile strength of chain that made the not fragile also just bigger raising of outer plate; The diameter of bore of sheet (6) in suitably enlarging, the gap of garden diameter outside sheet diameter of bore and the bearing pin in reducing like this, thus dwindled gap between middle sheet (6) and the bearing pin (1), make middle sheet and bearing pin is not easy to wear and kerve, thereby prolonged chain working life.

2, chain according to claim 1 is characterized in that: bearing pin (1) diameter from 4.45 millimeters overstrikings to 4.58 to 4.65 millimeters; Outer plate (2), inner plate (3) and axle sleeve (5) diameter of bore are respectively 4.48 to 4.55 millimeters, 6.28 to 6.35 millimeters and 4.68 to 4.75 millimeters.

3, chain according to claim 1 is characterized in that: the outer garden diameter at outer plate (2) two ends expands 11.00 to 11.50 millimeters to from 10.50 millimeters, and waist is also done corresponding expansion in the middle of the outer plate (2), enlarges 0.48 to 0.55 millimeter to both sides.

4, chain according to claim 1 is characterized in that: the diameter of bore of middle sheet (6) expands 4.58 to 4.65 millimeters to from 4.48 millimeters, the gap between middle sheet (6) and the bearing pin (1), and former gap is 0.05 millimeter, existing gap is 0.01 to 0.02 millimeter.