CN201836220U

CN201836220U - Strengthened cylinder roller bearing

Info

Publication number: CN201836220U
Application number: CN2010205933093U
Authority: CN
Inventors: 张辉
Original assignee: WAFANGDIAN METALLURGICAL BEARING GROUP CO Ltd
Current assignee: WAFANGDIAN METALLURGICAL BEARING GROUP CO Ltd
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2011-05-18
Anticipated expiration: 2020-11-05

Abstract

The utility model provides a strengthened cylinder roller bearing, which resolves problems of existing cylinder roller bearings via an improved retainer structure. The technical scheme includes that the bearing consists of an outer ring (1), an inner ring (2), a roller (3), a retainer (4), a loose rib (5) and pins (6), wherein the retainer (4) adopts a pull square hole retainer, the pins (6) which penetrate into pin holes (7) at two ends of the roller (3) are locked by four points of pin locking chiseled marks (8) on equally-divided step holes (9) on two end surfaces of the retainer (4), the outer ring (1), the roller (3) and the retainer (4) are integrally combined, and equally-divided arc lubricating grooves (10) are arranged on the outer diameter of the retainer (4). The strengthened cylinder roller bearing has obvious technical advantages that the bearing has enough internal space, the length and the amount of the roller can be increased, rated dynamic load is increased by 21%, the service life of the bearing is prolonged by about 90%, the arc lubricating groove has functions of improving lubrication and reducing friction, and accordingly noise of the bearing is reduced.

Description

Reinforced roller bearing

Technical field

The utility model relates to roller bearing, is specifically related to a kind of reinforced roller bearing.

Background technique

Conventional construction solid cage roller bearing by outer ring, inner ring (or inner ring, loose rib, retainer, roller and a pin constitute; Wherein retainer is by keeping stand, retainer lid to form; After outer ring, roller and maintenance stand installed, buckle the retainer lid, put on rivet and will keep stand and the riveting of retainer lid to become integral body.The maintenance stand of this kind structure and retainer lid are thicker because of the reason of intensity, and it is bigger to occupy the bearing axial space; Lintel is worn rivet again, requires lintel thicker.Reason to sum up, design parameter is 32 millimeters of roller diameters, 62 millimeters of roller lengths, roller number 43, the length of roller will be lacked, and number is also few a lot, dynamic load rating Cr=1400kN; So the bearing capacity of bearing is low; Lubricating quality is poor, noise is big.

Summary of the invention

The utility model provides a kind of reinforced roller bearing, has solved the problems referred to above by improving the retainer structure.

The utility model by the following technical solutions for achieving the above object: bearing is made up of outer ring, inner ring, roller, retainer, loose rib and pin; Wherein retainer adopts and draws the square hole retainer, and the retainer both ends of the surface have the equal portions shoulder hole; The roller both ends of the surface have pin-and-hole; 4 lock pin nail cutter seals pin the pin that is through in the pin-and-hole of roller two ends on the equal portions shoulder hole of retainer both ends of the surface, and outer ring, roller and retainer are formed one; Equal portions circular arc lubrication groove is arranged above the retainer external diameter.

The utility model significant technological progress of having compared with existing bearing:

Because this retainer structure makes bearing inside that enough spaces be arranged, the roller length that can extend, increase roller number, dynamic load rating has improved 21%, and the life-span improves 90% approximately; Because the surface of contact of retainer and roller more is tending towards rationally, and the circular arc lubrication groove on the retainer external diameter played the effect that improvement is lubricated, reduced friction, thereby reduced the noise of bearing.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is further described.

Fig. 1 is bearing structure figure;

Fig. 2 retainer longitudinal section view;

Fig. 3 retainer external diameter lubrication groove figure.

Figure labeling description: outer ring 1, inner ring 2, roller 3, retainer 4, loose rib 5, pin 6, pin-and-hole 7, pin cutter seal 8, shoulder hole 9, lubrication groove 10.

Embodiment

As shown in Figure 1, bearing is made up of outer ring 1, inner ring 2, roller 3, retainer 4, loose rib 5 and pin 6, and roller 3 both ends of the surface have pin-and-hole 7.See Fig. 2, draw square hole retainer 4 with the aluminum bronze manufacturing, retainer 4 both ends of the surface have equal portions shoulder hole 9; See Fig. 1, pinned by 4 lock pins nail cutter seal 8 on the equal portions shoulder hole 9 of retainer 4 both ends of the surface and be through in the roller 3 two ends pin-and-holes 7 pin 6 that outer ring 1, roller 3, retainer 4 are formed one, retainer 4 more is tending towards reasonable with the surface of contact of roller 3.Because this new structure of retainer 4 makes bearing inside that enough spaces be arranged, roller 3 length, increase roller 3 numbers can extend, the utility model structural design bearing, parameter is 32 millimeters of roller 3 diameters, 74 millimeters of roller 3 length, roller 3 numbers 46, dynamic load rating: Cr=1700kN, the bearing capacity and the life-span of greatly having improved bearing.See Fig. 3, the equal portions circular arc lubrication groove 10 on retainer 4 external diameters improves lubricating condition, reduces friction, thereby has reduced the noise of bearing.

The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to replacement or change according to the technical solution of the utility model and model utility design thereof, all should be encompassed within the protection domain of the present utility model.

Claims

1. reinforced roller bearing, form by outer ring (1), inner ring (2), roller (3), retainer (4), loose rib (5) and pin (6), it is characterized in that: described retainer (4) adopts and draws the square hole retainer, and retainer (4) both ends of the surface have equal portions shoulder hole (9).

2. according to the described reinforced roller bearing of claim 1, it is characterized in that: described roller (3) both ends of the surface have pin-and-hole (7).

3. according to the described reinforced roller bearing of claim 1, it is characterized in that: last 4 lock pins nail cutter seals of the equal portions shoulder hole (9) of described retainer (4) both ends of the surface (8) pin the pin (6) that is through in roller (3) the two ends pin-and-holes (7).

4. according to the described reinforced roller bearing of claim 1, it is characterized in that: retainer (4) has equal portions circular arc lubrication groove (10) above the external diameter.