CN2331625Y - Conveyor contact roller - Google Patents

Abstract

The utility model discloses a conveyor roller. The utility model is characterized in that The rollaway nests of an inner and an outer rings are in circular arc shapes; the radius of the rollaway nest is larger than the radius of a ball; a dust-proof device is arranged between the inner and the outer rings. The utility model improves the sensitivity of balls, decreases friction factor and maintains stabilization in operation, being suitable for various adverse environment.

Description

A kind of conveyer roller

The utility model relates to conveying machinery, particularly about the roller of conveyer.

Modern commercial production needs advanced equipment, at present, large and medium-sized industrial enterprise produce and often use conveyer to come conveying parts, parts, semifinished or finished goods to a certain specific station, or in course of conveying, finish the operation of regulation, as in the car assembling operation, various parts, parts, half-blank are hung in certain sequence on each hook of conveyer, the travelling speed that matches with certain productive temp is delivered to assembling line from the warehouse, each setting; And for example the finished product with workshop hangs on the hook of conveyer, deliver on warehouse or the transport trolley from the workshop, the hook of conveyer then by roller wheel bearing and walking on fixing outstanding rail, each hook links to each other by chain or cable wire, the roller of this conveyer is at work at the bottom of the kinematic velocity, load is big, and general bearing can't use.

Traditional conveyer roller adopts the powder metallurgical material to be pressed into, or has iron sheet rammed, and shortcoming is: not wear-resisting, service life is short, is eliminated by each conveyer manufacturer so far.At present, usually use the conveyer roller, its feature is that internal raceways is oval structure, and ball respectively contacts 2 points with the raceway of outer ring or inner ring, and the true contact point of ball that forms is up to 8 points, cause roller in running condition coefficient of friction to increase, service life, easy to wear, radially little with end-play, no dust prevention system is stuck easily, is not suitable for using in harsh environment.

The purpose of this utility model is to provide a kind of improved conveyer roller, and it is little that it has a friction coefficient, and be adapted at using in the harsh environment.

The technical solution of the utility model is achieved in that a kind of conveyer roller, it consists predominantly of outer, inner ring and ball, outside, be equipped with the raceway that matches with ball on the inner ring, it is characterized in that: the raceway on the inside and outside circle is a circular arc, its radius is slightly larger than the radius of ball, also is provided with dust keeper between inside and outside circle.

The utility model is because the raceway on the inside and outside circle is set to circular arc, and the radius of raceway is slightly larger than the radius of ball, two contact points are only respectively arranged when making the rolling of ball on inside and outside raceway, reduced coefficient of friction, improved the sensitivity of ball, and being in operation to keep stable, owing to be provided with dust keeper between inside and outside circle, can use in various harsies environment in addition.

Figure l is an embodiment of the present utility model

Fig. 2 is another embodiment of the present utility model

The utility model will be further described below in conjunction with drawings and Examples

The utility model consists predominantly of outer ring l, inner ring 2 and ball 3, outside, be equipped with the raceway that matches with ball on the inner ring, it is different from prior art: in, raceway on the outer ring is a circular arc, the radius of the raceway of circular arc is slightly larger than the radius of ball, AB arc on the raceway of outer ring 1 is the part of circular arc raceway in the accompanying drawings, CD arc on the raceway of inner ring 2 is the part of this raceway, ball 3 can be respectively with outward, AB arc on the inner ring raceway contacts with the CD arc, be that ball is interior, two contact points are only arranged on each raceway when rolling on the raceway of outer ring, for the fabrication and installation convenience, the raceway of inner ring can X-X axle longitudinally be divided into complete symmetry and coincide about 2 half, holding firmware 5 is fixed inner ring, axis hole 4 between two holding firmwares 5 and with the vehicle frame axle of conveyer hook, match (does not draw does not separately mark), in actual use, in, raceway radius on the outer ring can be greater than the 0.2-2.5mm of ball radius, in, raceway circular arc on the outer ring can be less than 1/3 (Fig. 2) of ball girth, in order to make the resistance of outer ring on the conveyor line track little, the shape of outer ring has been done improvement, the shape approximation of outer ring of the present utility model is accentric circular arc: the utility model is interior, also be provided with dust keeper between the outer ring, be full of dust to adapt to, use in the various harsies environment such as corrosion, interior, the dust keeper that is provided with on the outer ring is last, seal cover cap 9 is equipped with in 1 of following outer ring, interior, seal cover cap 7 and outer gland sealing lid 6 in being equipped with respectively between the outer ring is interior, one intermediate seal lid 8 also is set between the outer gland sealing lid.This intermediate seal lid 8 go back door live inner ring 2 and fixedly the holding firmware 5 of inner ring with enhancing leak free effect.

Outer ring among Fig. 1, inner ring can adopt bearing steel or dead-soft steel, with adapt to the automobile conveyor line spray paint and fitting line in the heavy burden operation of operation and heavy conveyor line; Also established retainer 10 in addition on the ball side among Fig. 2, the ball standard is sparsely arranged, seal cover cap 9 is after the vehicle frame axle assembling that axis hole 4 and conveyer are linked up with, press tensioner solid through oil press, play the effect of exclusion seal, because of its load light, can all adopt inexpensive low, medium-carbon steel production, adopt the process for quenching of carbonitriding, manufacturing cost is lower, be applicable to the production of rolling friction conveyor line, be widely used in spraying paint of friction of rolling conveyor line such as household electric appliances, on the lighter conveyor line of oven dry and fitting line or other load.

Claims (3)

1. conveyer roller, it consists predominantly of outer, inner ring and ball, and outside, be equipped with the raceway that matches with ball on the inner ring, it is characterized in that: the raceway on the inside and outside circle is a circular arc, its radius is slightly larger than the radius of ball, also is provided with dust keeper between inside and outside circle.

2. by the described a kind of conveyer roller of claim 1, it is characterized in that: the raceway radius on the inside and outside circle can be greater than the 0.2-2.5mm of ball radius; Raceway circular arc on the inside and outside circle can be less than 1/3 of ball girth; The shape approximation of outer ring is accentric circular arc.

3. by the described a kind of conveyer roller of claim 1, it is characterized in that: be: between upper and lower outer ring, seal cover cap is housed at the dust keeper that is provided with on the inside and outside circle, seal cover cap and outer gland sealing lid in being equipped with respectively between inside and outside circle also is provided with intermediate seal lid between inside and outside seal cover cap.

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