CN2793411Y

CN2793411Y - Cone roller bearing for plane undercarriage

Info

Publication number: CN2793411Y
Application number: CN 200520030890
Authority: CN
Inventors: 梁波; 马美玲; 仆升涛; 陆建德
Original assignee: Luoyang Bearing Science and Technology Co Ltd
Current assignee: Luoyang Bearing Science and Technology Co Ltd
Priority date: 2005-06-07
Filing date: 2005-06-07
Publication date: 2006-07-05
Anticipated expiration: 2015-06-07

Abstract

The utility model relates to a cone roller bearing for a plane undercarriage, which is formed by assembling an outer ring, an inner ring, a rolling body and a holding rack. The utility model is characterized in that the holding rack of the utility model is processed into a solid holding rack (2) by using brass material having strong shock resistance and good processing technique in modes of turning and a milling; the holding rack is provided with a conical surface pocket hole having good containment, and the conical surface rolling body (4) is arranged in the conical surface pocket hole; one side of the small end surface of an inner ring of a bearing is provided with a stop spring clamping ring (3). The holding rack, the rolling body and the inner ring are made to form an assembly by the spring clamping ring (3) on the inner ring, the phenomenon of sheath looseness can not occur and the shock resistance of the utility model is strong.

Description

The undercarriage tapered roller bearing

Technical field:

The utility model relates to technical field of bearings, a kind of undercarriage tapered roller bearing.

Background technique:

At present, the tapered roller bearing of using in the undercarriage wheel, its retainer mostly is the steel plate punching structure.The separated attitude of bearing; This drawn-steel production and processing mode, its advantage are to be suitable for producing in batches, and cost of production is low, but because the structure of retainer mould is quite complicated, the cost of processing mold is very high, for small lot batch manufacture, adopt this processing technology production risk big, the cycle is long, and cost is higher relatively; In development process, may occur because of the retainer physical dimension changes, and frequent more mold exchange causes scrapping of mould; In addition, if stamping process is improper, the situation that retainer crackle and retainer clamp roll also can occur takes place; Also because this retainer impact resistance of processing with stamping process is not strong, it can not adapt to the working condition requirement that can cause great impact power when aircraft frequently rises and falls and rises and falls well.

Summary of the invention:

For overcoming existing undercarriage bearing the problems referred to above, the purpose of this utility model provides a kind of undercarriage tapered roller bearing, the enormous impact power when making this bearing bear aircraft takeoffs and landings, and can when small lot batch manufacture, reduce production costs.

For achieving the above object, the utility model adopts following technological scheme:

Described undercarriage tapered roller bearing is assembled by outer ring, inner ring, roller and retainer, its retainer adopt have strong shock resistance, brass material that technology capability is good becomes solid cage through turning with Milling Process; The good conical surface pocket hole of containment is adopted in the pocket hole of retainer; Be provided with spring collar in bearing inner race small end face one side.

Owing to adopt aforesaid technological scheme, the utlity model has following superiority:

Because this undercarriage tapered roller bearing, adopted have strong shock resistance, brass material that technology capability is good becomes solid cage through turning with Milling Process; This retainer adopts the good conical surface pocket hole of containment, and makes retainer, rolling element and inner ring form an assemblying body by the spring collar on the inner ring, sequence of sanqu songs within a particular musical mode phenomenon can not occur, its strong shock resistance to guarantee this assemblying body; This retainer adopts turning and milling machining to produce, and for the production of small lot, to compare cost of production low with mould production, and yield rate improves greatly; And this retainer is easy to dismounting, is convenient to maintenance.

Description of drawings:

Fig. 1 is the structural representation of undercarriage with tapered roller bearing.

Among the figure: the 1-outer ring; The 2-retainer; 3-stopper spring circle; The 4-rolling element; The 5-inner ring;

Specific embodiment:

As shown in fig. 1: add man-hour, its retainer adopt have strong shock resistance, brass material that technology capability is good becomes solid cage (2) through turning with Milling Process, the retainer Milling Process goes out containment conical surface pocket hole preferably, dress circular cone rolling element (4) in the conical surface pocket hole, be provided with stopper spring collar (3) in bearing inner race small end face one side, make retainer, rolling element and inner ring form an assemblying body by the spring collar on the inner ring, the sequence of sanqu songs within a particular musical mode can not occur, its strong shock resistance.

Claims

1, a kind of undercarriage tapered roller bearing, assemble by outer ring (1), inner ring (5), rolling element (4) and retainer (2), it is characterized in that: its retainer adopt have strong shock resistance, brass material that technology capability is good becomes solid cage (2) through turning with Milling Process; Retainer adopts the good conical surface pocket hole of containment, and interior dress is with conical surface roller (4); Be provided with stopper spring collar (3) in bearing inner race small end face one side.