CN210218558U - Durable roller chain - Google Patents

Abstract

The utility model discloses a durable roller chain, including outer link joint, inner link joint and round pin axle, still include slewing mechanism and locking mechanism, slewing mechanism includes sleeve pipe, sleeve and ball, the sleeve pipe cover is established in the round pin outside of axes, the sleeve pipe outside is cup jointed and is equipped with the sleeve, and the sleeve is inside to be equipped with the ball, locking mechanism includes gland and spring, and the gland setting is in the round pin axle both ends, the gland both sides all are equipped with the spring. The utility model discloses a set up slewing mechanism's sleeve pipe, sleeve and ball, be favorable to reducing sleeve pipe and sleeve frictional force when the rotation, avoid telescopic damage, prolonged life, locking mechanism's gland is favorable to fixing the both ends of round pin axle under the effect of spring, and it is not hard up to avoid producing after the long-time use of round pin axle, plays fine guard action.

Description

Durable roller chain

Technical Field

The utility model relates to a chain field, in particular to durable roller chain.

Background

Roller chains are a type of power chain used in conveyor machines, and are a type of chain drive used in a wide variety of domestic, industrial and agricultural machines, including conveyors, plotters, printing presses, automobiles, motorcycles, and bicycles. It is a simple, reliable and high-efficiency power transmission device, which is connected together by a series of short cylindrical roller chains and driven by a gear called chain wheel.

The existing roller chain has poor fatigue resistance and wear resistance, and is easy to cause damage of a pin shaft after long-time use, so that products are scrapped, and the service life is shortened.

Therefore, there is a need for a durable roller chain that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a durable roller chain to the fatigue resistance ability and the wear resistance of the current roller chain of proposing are relatively poor in solving above-mentioned background art, cause the damage of round pin axle easily after using for a long time, cause scrapping of product, have reduced life's problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a durable roller chain, includes outer link joint, inner link joint and round pin axle, still includes slewing mechanism and locking mechanism, slewing mechanism includes sleeve pipe, sleeve and ball, the sleeve pipe box is established in the round pin outside of axes, the sleeve pipe outside cup joints and is equipped with the sleeve, and the inside ball that is equipped with of sleeve, locking mechanism includes gland and spring, and the gland setting is in round pin axle both ends, the gland both sides all are equipped with the spring, slewing mechanism's sleeve pipe, sleeve and ball are favorable to reducing the sleeve pipe and the sleeve frictional force when rotating, avoid telescopic damage, have prolonged life, and locking mechanism's gland is favorable to fixing the both ends of round pin axle under the effect of spring, avoids the round pin axle to produce after using for a long time not hard up.

Preferably, the round pin axle includes box and with box threaded connection's pin thread, conveniently takes out the round pin axle and changes for use convenience more.

Preferably, the cross section of the sleeve is arranged to be I-shaped, so that the sleeve is limited.

Preferably, the ball is in contact with the sleeve.

Preferably, the gland is matched with the two ends of the pin shaft.

Preferably, the spring is fixedly connected with the gland and the outer chain plate.

The utility model has the advantages that:

through the sleeve pipe, sleeve and the ball that set up slewing mechanism, be favorable to reducing the sleeve pipe and the sleeve frictional force when rotating, avoid telescopic damage, prolonged life, locking mechanism's gland is favorable to fixing the both ends of round pin axle under the effect of spring, avoids round pin axle to produce after long-time the use not hard up, plays fine guard action.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the portion A of FIG. 1;

in the figure: the chain comprises an outer chain plate 1, an inner chain plate 2, a pin shaft 3, a sleeve 4, a sleeve 5, a ball 6, a gland 7, a spring 8, a female buckle 31 and a male buckle 32.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a as shown in fig. 1-2 a durable roller chain, including outer link joint 1, inner plate 2 and round pin axle 3, still include slewing mechanism and locking mechanism, slewing mechanism includes sleeve pipe 4, sleeve 5 and ball 6, the sleeve pipe 4 cover is established in the 3 outsides of round pin axle, the sleeve pipe 4 outside is cup jointed and is equipped with sleeve 5, and sleeve 5 is inside to be equipped with ball 6, locking mechanism includes gland 7 and spring 8, and gland 7 sets up 3 both ends of round pin axle, gland 7 both sides all are equipped with spring 8.

Further, in the above technical solution, the pin 3 includes a box 31 and a pin 32 in threaded connection with the box 31;

further, in the above technical solution, the cross section of the sleeve 4 is provided with an i-shaped cross section;

further, in the above technical solution, the ball 6 is in contact with the sleeve 4;

furthermore, in the above technical scheme, the gland 7 is fitted with the two ends of the pin shaft 3, which is beneficial to extruding the two ends of the pin shaft 3 and avoids sliding out when in use;

further, in the above technical solution, the spring 8 is fixedly connected with the gland 7 and the outer link plate 1.

This practical theory of operation:

referring to the attached drawings 1-2 of the specification, when the device is used, the chain is bent under the action of the outer chain plate 1 and the inner chain plate 2, the sleeve 5 rotates, friction force between the sleeve and the gear 4 of the sleeve is reduced under the action of the balls 6, the service life of the sleeve 5 is effectively prolonged, the service life of the chain is prolonged, the gland 7 extrudes the two ends of the pin shaft 3 under the action of the spring 8 when the pin shaft 3 rotates, the pin shaft 3 is effectively prevented from falling off, danger is avoided, the female buckle 31 and the male buckle 32 of the pin shaft 3 are beneficial to replacing the pin shaft, the sleeve 4 and the sleeve 5, and the use is more convenient.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a durable roller chain, includes outer link joint (1), inner link joint (2) and round pin axle (3), its characterized in that: still include slewing mechanism and locking mechanism, slewing mechanism includes sleeve pipe (4), sleeve (5) and ball (6), sleeve pipe (4) cover is established in round pin axle (3) outside, sleeve pipe (4) outside is cup jointed and is equipped with sleeve (5), and sleeve (5) are inside to be equipped with ball (6), locking mechanism includes gland (7) and spring (8), and gland (7) set up round pin axle (3) both ends, gland (7) both sides all are equipped with spring (8).

2. The durable roller chain of claim 1, wherein: the pin shaft (3) comprises a female buckle (31) and a male buckle (32) in threaded connection with the female buckle (31).

3. The durable roller chain of claim 1, wherein: the section of the sleeve (4) is I-shaped.

4. The durable roller chain of claim 1, wherein: the ball (6) is in contact with the sleeve (4).

5. The durable roller chain of claim 1, wherein: the gland (7) is matched with the two ends of the pin shaft (3).

6. The durable roller chain of claim 1, wherein: and the spring (8) is fixedly connected with the gland (7) and the outer chain plate (1).

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