CN202746398U - Tightly arrayed quill roller assembly - Google Patents

Abstract

A tightly arrayed quill roller assembly is provided with an outer ring and an inner ring, the outer ring is arranged outside the inner ring, a front row and a rear row of rolling elements are tightly arrayed in an annular space formed between the outer ring and the inner ring, the two rows of rolling elements are separated by a spacer, the front end of the front row of rolling elements extends to the outer ring and the outer part of the inner ring and a concave groove is arranged on the periphery of the the spacer. The tightly arrayed quill roller assembly is an upgrade alternative product of supporting in advance tightly arrayed rolling elements and mainly applies to the theory that soft plastic swells gradually under the influence of temperature while hard plastic hardly changes. The outer ring adopts the hard ABS (acrylonitrile-butadiene-styrene) material, the inner ring adopts the soft polypropylene material, the inner ring is tighter and tighter while the inner ring swells more and more, and thereby the problem of dropping needle of the supporting in advance tightly arrayed rolling element is basically solved, and meanwhile the friction is reduced due to the structure of short inner sleeve so that the producing and the assembling is benefited for the clients.

Description

Solid matter needle roller assembly

Technical field

The utility model relates to a kind of solid matter needle roller assembly, with rolling element according to the needs of field of employment in advance solid matter be integral, be mainly used in the planetary pinion of heavy-duty car hub reduction gear.

Background technique

Need to use needle bearing or roller bearing in a lot of places of engineering and heavy-duty car field, for example the Medium or severe type automobile is with the planet wheel place of wheel hem retarding mechanism, and needle roller and roller are as rolling element, and guide gear is rotated.Keep the plastics Internal and external cycle temperature influence of needle roller comparatively serious in the conventional construction, thus product when practical application, the pin phenomenon has appearred falling in product, has formed quality problems.

Summary of the invention

The purpose of this utility model provides a kind of solid matter needle roller assembly, solve since temperature effect support in advance the solid matter rolling element fall the pin problem, be beneficial to again the client and produce assembling.

The purpose of this utility model realizes as follows: this solid matter needle roller assembly, comprise rolling element, an ABS outer ring and polypropylene inner ring are arranged, outer ring sleeve is in the inner ring periphery, inner ring is short interior nested structure, be inner ring length less than outer ring length, solid matter rolling element in the annular space that between outer ring and inner ring, forms.By inner ring and outer ring the rolling element that disperses is combined into one in advance, during use, by frock integral body the position that rolling element is pressed into appointment between gear hole and the axle is got final product, inner ring and outer ring are stayed the outside naturally.

The front end of rolling element extends and encloses and the inner ring outside, is convenient to the rolling element head and inserts rigging position.

Can arrange single or dual row of rolling bodies in the annular space of outer ring and inner ring, in the situation that needs are arranged dual row of rolling bodies, two row's rolling elements before and after the solid matter are separated with pad between two row's rolling elements in the annular space of outer ring and inner ring.During use, rolling element and pad are pressed onto together the position of appointment between gear hole and the axle by frock integral body.

The circumference band of pad is fluted, is convenient to the circulation of lubricant oil.

The utility model with rolling element according to the needs of field of employment in advance solid matter be integral, when main frame producer uses, without coating butter, prevent pollution and rotten abrasive wear or the corrosive wear phenomenon of causing because of butter; Do not fill by hand rolling element, directly use frock integral body to be pressed into rolling element and pad and get final product raising efficiency of assembling and precision to the position of appointment; Do not have the mixing of butter and lubricant oil to use, do not produce sludge, can not prevent rolling element relative motion surface generation adhesive wear under insufficient lubrication to the lubricated adverse effect that causes of bearing, even the phenomenon of burn; The reeded pad of cylindrical band can guarantee the circulation of lubricant oil, guarantees that bearing is effectively lubricated, cools off.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

With reference to Fig. 1, an outer ring 1 and inner ring 2 are arranged, outer ring 1 is enclosed within inner ring 2 peripheries, and inner ring 2 is short interior nested structure, two row's rolling elements 4 before and after the solid matter in the annular space that forms between outer ring 1 and inner ring 2, be separated with pad 3 between two row's rolling elements 4, the front end of front-seat rolling element 4 extend circle 1 and inner ring 2 outsides, the circumference band of pad 3 is fluted, and groove adopts arc groove, so that the smooth circulation of lubricant oil and lubricated, the working life of assurance bearing.Inner ring 2 should adopt soft polypropylene plastics, has certain support strength; The hard ABS plastic should be adopted in outer ring 1, has certain toughness.

Claims (2)

1. solid matter needle roller assembly, comprise rolling element, it is characterized in that: an ABS outer ring (1) and polypropylene inner ring (2) are arranged, outer ring (1) is enclosed within inner ring (2) periphery, inner ring (2) is short interior nested structure, solid matter rolling element (4) in the annular space that forms between outer ring (1) and inner ring (2).

2. solid matter needle roller assembly according to claim 1 is characterized in that: the front end of rolling element (4) extend circle (1) and inner ring (2) outside.

3. solid matter needle roller assembly according to claim 1 is characterized in that: two row's rolling elements (4) before and after the solid matter in the annular space of outer ring (1) and inner ring (2) are separated with pad (3) between two row's rolling elements (4).

4. solid matter needle roller assembly according to claim 3, it is characterized in that: the circumference band of pad (3) is fluted.

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