CN88201552U

CN88201552U - Radial-thrust double layer long-taper roller bearing

Info

Publication number: CN88201552U
Application number: CN 88201552
Authority: CN
Inventors: 郭德明
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-03-13
Filing date: 1988-03-13
Publication date: 1988-11-23

Abstract

The utility model discloses a heavy-load radial-thrust double layer long-taper roller bearing which is suitable for various load-carrying vehicles and machines and has the advantages of high efficiency, high durability, less power consumption and long service life. The radial-thrust double layer long-taper roller bearing is characterized in that components bearing radial and axial load are an inner-layer long conical roller and an outer-layer long conical roller with the intermediate casings of bearings; the outer surfaces of the long conical rollers are provided with two or three spiral shallow oil grooves, and the outer rings of the intermediate casings of bearings are provided with two or three small through holes; the inner rings of bearings and the outer surfaces of the intermediate casings are provided with roller paths. The bearing can bear large radial and axial load and has high limit speed.

Description

Radial-thrust double layer long-taper roller bearing

The invention belongs to a kind of mechanical bearings--the double-deck long garden of centripetal thrust force taper roller bearing specifically, is a kind of double-deck long garden of centripetal thrust force taper roller bearing that is applicable to all kinds of load-carrying vehicles and machinery.

Centripetal thrust force garden taper roller bearing is arranged in the prior art, and the combination needle bearing does not still have the entad double-deck long garden of thrust taper roller bearing.Existing centripetal thrust force garden taper roller bearing, and the combination needle bearing can not run up under fully loaded transportation condition.Otherwise the rapid variation of usability, reduce working life greatly, and the abrasion power consumption sharply increases.

The object of the present invention is to provide and a kind ofly can bear bigger axial force, and it is very big to bear footpath power ability, running steadily, the abrasion power consumption is significantly less than existing various thrust, combination bearing, and the structurally more compound again needle bearing of the much the same bearing of thrust garden taper roller bearing of radial dimension and equal capability is simple.

For achieving the above object, the present invention does following improvement to existing centripetal thrust force garden taper roller bearing: change former garden awl roller into radial dimension less long garden awl roller; Add a bearing middle cover between the garden awl roller with former single belt retainer; To grow on the awl roller outer surface of garden and open two to three shallow oil ducts of spiral; Two to three small through hole will be opened on the bearing middle cover.

The advantage that the present invention proposes the double-deck long garden of centripetal thrust force taper roller bearing is tangible, owing to change individual layer garden awl roller into double-deck long garden awl roller, and bearing middle cover of adding separates between the awl roller of two-layer long garden, to once roll originally and become twice rolling, the rotating speed of every layer of roller is descended greatly, the comprehensive friction factor of whole bearing reduces greatly, and improve working life greatly, and load reaches uniform; Owing to have on the awl roller outer surface of long garden and have two to three small through hole on two to three shallow oil ducts of spiral and the bearing intermediate point, the lubricating condition of bearing is improved greatly.Through above-mentioned improved bearing, the abrasion power consumption significantly reduces, and improve working life greatly, and running is steady, and limit speed is higher, can be widely used in all kinds of load-carrying vehicles and machinery, can be designed to the series product of standard.

Be described in further detail with regard to embodiments of the invention below in conjunction with accompanying drawing, thereby more can embody details of the present invention and advantage.

Referring to accompanying drawing, this is the present invention--the embodiment of the double-deck long garden of centripetal thrust force taper roller bearing.It is by bearing inner race (1), and roller cage (2) is bored in the long garden of internal layer, the long garden of internal layer awl roller (3), and bearing middle cover (4), roller cage (5) is bored in outer long garden, outer long garden awl roller (6), bearing outer ring (7) is formed.The internal surface of bearing inner race (1) cooperates with axle journal, and internal layer long garden awl roller cage (2) and the long garden of internal layer awl roller (3) are equipped with in the outside of bearing inner race (1); The long garden awl roller of internal layer (3) outside bearing set middle cover (4); Outer long garden awl roller cage (5) and outer long garden awl roller (6) are equipped with in bearing middle cover (4) outside; Bearing outer ring (7) is sleeved on the outside of outer long garden awl roller (6).The axis of the long garden awl roller of internal layer (3) becomes 5 °-6 ° angle with the axis of bearing inner race (1), and the axis of outer long garden awl roller (6) becomes 10 °-12 ° angle with the axis of bearing inner race (1); Have two to three shallow oil ducts of spiral on the outer surface of the long garden of inside and outside layer awl roller; All have the raceway of long garden awl roller on the outer surface of bearing inner race (1) and bearing middle cover (4); Have two to three small through hole on bearing middle cover (4) and the bearing outer ring (7).This bearing bears very big radial and axial load, and its abrasion power consumption only is the 1/10-1/5 of thrust of the same type garden taper roller bearing simultaneously; Be more than five times of thrust of the same type garden taper roller bearing working life, and limit speed can be enhanced about more than once.

Claims

1, a kind of double-deck long garden of centripetal thrust force taper roller bearing that is suitable for all kinds of load-carrying vehicles and machinery, it includes the bearing inner race that cooperates with axle journal, is installed in outside the bearing inner race.The internal layer on surface long garden awl roller and retainer thereof, between inside and outside layer long garden awl roller and retainer thereof, the bearing middle cover is housed, outer long garden awl roller and retainer thereof are sleeved on the outer surface of bearing middle cover, and bearing outer ring is sleeved on the awl roller of outer long garden.The invention is characterized in:

(1) inside and outside layer long garden awl roller and retainer thereof are housed between the above-mentioned inside and outside circle of bearing, and between inside and outside layer long garden awl roller and retainer thereof, add a bearing middle cover;

(2) axis of the long garden of described internal layer awl roller becomes 5 °～6 ° angle with the axis of bearing inner race, and the axis of outer long garden awl roller becomes 10 °～12 ° angle with the axis of bearing inner race;

(3) described long garden is bored on the roller outer surface and is had two to three shallow oil ducts of spiral, has two to three small through hole on bearing middle cover and the bearing outer ring, plays the storage of lubricant grease, the conveying effect;

(4) have on the outer surface of described bearing inner race and bearing middle cover roll logical.

2, according to the double-deck long garden of the described centripetal thrust force of claim 1 taper roller bearing, it is characterized in that above-mentioned bearing inner race internal surface cooperates with axle journal, its outer surface contacts with the long garden of internal layer awl roller; Above-mentioned internal layer long garden awl roller and retainer thereof are contained in surface outside the bearing inner race; Above-mentioned bearing middle cover is contained between inside and outside layer long garden awl roller and the retainer thereof; The axis of the long garden of above-mentioned internal layer awl roller becomes 5 °～6 ° angle with the axis of bearing inner race, the axis of outer long garden awl roller becomes 10 °～12 ° angle with the axis of bearing inner race; Have raceway on the outer surface of above-mentioned bearing inner race and bearing middle cover; The outer surface of above-mentioned bearing middle cover contacts with outer long garden awl roller; Above-mentioned skin long garden awl roller and retainer thereof are sleeved on the outer surface of bearing middle cover; Above-mentioned bearing outer ring is sleeved on outer long garden awl roller and the retainer thereof; Have two to three through holes on above-mentioned bearing middle cover and the bearing outer ring.