CN210686660U

CN210686660U - Novel needle roller bearing

Info

Publication number: CN210686660U
Application number: CN201921640231.3U
Authority: CN
Inventors: 王邦秋; 张士满
Original assignee: Shaoxing Axis Bearing Technology Co ltd
Current assignee: Shaoxing Axis Bearing Technology Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-05
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to the field of bearings, and discloses a novel needle bearing, which comprises an outer ring, a retainer and rollers, wherein the retainer comprises baffle rings positioned at two sides in the axial direction and connecting beams for connecting the two baffle rings, a plurality of connecting beams are uniformly distributed along the circumferential direction of the baffle rings, window holes with the same number as the rollers are formed between the adjacent connecting beams, the rollers are kept in the window holes, the outer ring is sealed and buckled between the baffle rings at two sides, the inner wall of the outer ring is attached to the rollers, an oil storage groove is recessed at one side of the connecting beam close to the outer ring, an oil passing ring groove concentric with the baffle ring is arranged in the baffle ring, an oil passing hole communicated with the oil storage tank and the oil passing ring groove is arranged on the inner wall of the baffle ring, an oil storage body is arranged in the oil passing ring groove, an oil filling hole communicated with the oil passing ring groove is arranged on the outer wall of the baffle ring, this bearing adds lubricating oil convenient, even, can effectively prolong lubricated ageing, avoids the waste of too much lubricating oil.

Description

Novel needle roller bearing

Technical Field

The utility model relates to a bearing field especially relates to a novel needle bearing.

Background

Needle roller bearings are roller bearings with cylindrical rollers, which are both thin and long with respect to their diameter, and are called needle rollers.

The existing needle bearing structure, such as the heavy-load cylindrical rolling element bearing disclosed in chinese patent with publication number CN20589592U, generally comprises an outer ring, a retainer and a rolling element, wherein the rolling element is uniformly distributed in a raceway of the outer ring, the retainer is arranged in the outer ring of the bearing, the retainer comprises retaining rings at two axial sides and connecting beams for connecting the two retaining rings, a plurality of connecting beams are uniformly distributed along the circumferential direction of the retaining rings, window holes with the same number as that of rollers are formed between adjacent connecting beams, and the rolling element is retained in the window holes.

Add lubricating oil and can only follow the inboard interpolation of rolling element in the above-mentioned rolling element bearing, after general rolling element bearing and part cooperation, part and the inside interference of rolling element alternate the cooperation, do not have the clearance basically, lubricating oil adds very inconveniently, and lubricating oil can't be stored, and most lubricating oil can drop from the bearing, causes the waste.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the inconvenient shortcoming of prior art bearing lubricating oil interpolation, provide a novel bearing.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

the utility model provides a novel needle roller bearing, which comprises an outer ring, holder and roller, the holder is including the fender ring that is located axial both sides and connect two tie-beams that keep off the ring, the tie-beam has a plurality of along keeping off ring circumference equipartition, form the fenestra that equals with roller quantity between the adjacent tie-beam, the roller keeps in the fenestra, the sealed lock of outer lane keeps off between the ring in both sides and the inner wall and the rolling element laminating of outer lane, it has the oil storage tank to cave in one side that is close to the outer lane at the tie-beam, keep off ring inside be provided with the endocentric oil ring groove of fender ring, be provided with the intercommunication oil storage tank and the oil hole of crossing of oil ring groove at fender ring inner wall, cross the oil intra-annular and.

Adopt above-mentioned scheme, the holder of this scheme has the efficiency of storing lubricating oil after with the cooperation of outer lane, can avoid lubricating oil to leak from outer lane department after outer lane and the sealed block of holder, oil storage can adsorb too much lubricating oil, avoid the lubricating oil of interpolation to once run off, in follow-up, oil storage can volatilize partial lubricating oil and continue to keep the rotatory smoothness nature of roller, concrete process does, add lubricating oil from the oil filler point, lubricating oil enters into the oil ring groove from the oil filler point, and enter into the oil storage tank respectively through crossing the oilhole, the oil storage of oil storage tank adsorbs lubricating oil earlier, too much lubricating oil enters into on the roller from the cooperation department of tie-beam and roller, thereby lubricate the roller.

Preferably, a plurality of oil outlets are formed in both side wall surfaces of the coupling beam.

Adopt above-mentioned scheme, the setting up of oil outlet can make the lubricating oil in the oil storage tank enter into the roller from the oil outlet on, increases the rate of addition of lubricating oil, simultaneously, in the subsequent volatilization of the oil storage body, increases the channel that lubricating oil enters into on the roller.

Preferably, the outer ring is semicircular and is provided with two pieces, the outer ring is circular after being butted, and a sealing clamping structure is arranged between the outer ring and the baffle ring.

By adopting the scheme, the inner ring of the outer ring is smaller than the outer ring of the baffle ring, so that the two semicircular outer rings are arranged, the outer ring has certain elastic deformation capacity, and after the two outer rings are clamped with the baffle ring in a sealing manner, the leakage of lubricating oil from the joint of the baffle ring and the outer ring can be avoided.

Preferably, the sealing clamping structure comprises a clamping groove formed in the inner wall of the retaining ring and clamping edges arranged on two sides of the outer ring and clamped with the clamping groove, the clamping edges are arranged in an upward inclined mode towards one side, away from the center of the clamping groove, of the inner wall of the clamping groove, a sealing ring is arranged on the inner wall of the clamping groove, and the clamping edges abut against the sealing ring after being clamped with the clamping groove.

By adopting the scheme, the clamping edge is abutted against the sealing ring after being matched with the clamping groove, so that the sealing performance of the outer ring after being matched with the baffle ring is ensured.

Preferably, the butt joint of the outer ring is provided with an elastic layer, and after the outer ring is clamped with the clamping groove, the butt joint of the outer ring is mutually abutted in an interference manner.

Adopt above-mentioned scheme, set up the leakproofness that the outer lane cooperation department can be ensured to the elastic layer, further avoid the leakage of lubricating oil.

Preferably, the oil storage body is made of cotton.

By adopting the scheme, the cotton has good oil absorption and can effectively store lubricating oil.

The utility model discloses owing to adopted above technical scheme, have following technological effect: the roller bearing has the advantages that the retainer and the outer ring are matched to store lubricating oil, the outer ring and the retainer are clamped in a sealing mode to prevent the lubricating oil from leaking from the outer ring, the oil storage body can adsorb excessive lubricating oil, the phenomenon that the added lubricating oil runs off at one time is avoided, in the follow-up process, the oil storage body can volatilize part of the lubricating oil to continue to keep the smoothness of roller rotation, the roller bearing is convenient and uniform in lubricating oil adding, the lubricating aging can be effectively prolonged, and the waste of the excessive lubricating oil is avoided.

Drawings

Fig. 1 is an isometric view of a novel needle bearing of the present invention;

fig. 2 is a front view of a novel needle bearing of the present invention;

FIG. 3 is a cross-sectional view B-B of FIG. 2;

fig. 4 is an enlarged view of a in fig. 3.

The names of the parts indicated by the numerical references in the above figures are as follows: 1. a baffle ring; 2. an outer ring; 3. a connecting beam; 4. a roller; 5. an oil filler hole; 6. an oil storage tank; 7. an oil storage body; 8. an oil passing ring groove; 9. edge clamping; 10. a card slot; 11. an oil passing hole; 12. an oil outlet hole; 13. and (5) sealing rings.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

The utility model provides a novel needle bearing, refer to the attached drawing 1-4 and show, including outer lane 2, holder and roller 4, the holder is including the tie-beam 3 that is located the fender ring 1 of axial both sides and connects two fender rings 1, tie-beam 3 has a plurality of along keeping off 1 circumference equipartition of ring, form the fenestra that equals with roller 4 quantity between the adjacent tie-beam 3, roller 4 keeps in the fenestra, the fenestra is close to the diameter that one side width that keeps off ring 1 center is less than roller 4, one side width that fender ring 1 center was kept away from to the fenestra is greater than or equal to roller 4's diameter, 2 sealed locks of outer lane keep off between the ring 1 and the inner wall and the rolling element.

Wherein, outer lane 2 semicircular in shape and be provided with two, it is circular after 2 docks in the outer lane, be provided with sealed block structure between outer lane 2 and fender ring 1, sealed block structure including keep off draw-in groove 10 that 1 inner wall of ring set up and the card limit 9 with draw-in groove 10 joint that 2 both sides of outer lane set up, card limit 9 keeps away from one side tilt up setting at draw-in groove 10 center to draw-in groove 10 inner wall, be provided with sealing washer 13 at draw-in groove 10 inner wall, butt behind card limit 9 and the draw-in groove 10 block is on sealing washer 13, butt department at outer lane 2 is provided with the elastic layer, the elastic layer is made by rubber, behind 2 and the draw-in groove 10 joints, mutual interference butt between the butt joint. In the structure, the inner ring of the outer ring 2 is smaller than the outer ring of the baffle ring 1, so that two semicircular outer rings 2 are arranged, the outer ring 2 has certain elastic deformation capacity, after the two outer rings 2 and the baffle ring 1 are clamped in a sealing mode, the leakage of lubricating oil from the joint of the baffle ring 1 and the outer ring 2 can be avoided, the sealing performance of the matching part of the outer ring 2 can be ensured by arranging the elastic layer, and the leakage of the lubricating oil is further avoided.

An oil storage groove 6 is sunken on one side of the connecting beam 3 close to the outer ring 2, an oil passing ring groove 8 concentric with the baffle ring 1 is arranged inside the baffle ring 1, an oil passing hole 11 communicated with the oil storage groove 6 and the oil passing ring groove 8 is formed in the inner wall of the baffle ring 1, an oil storage body 7 is arranged in the oil passing ring groove 8, preferably, the oil storage body 7 is made of cotton, an oil filling hole 5 communicated with the oil passing ring groove 8 is formed in the outer wall of the baffle ring 1, and a plurality of oil outlet holes 12 are formed in the two side wall surfaces of the connecting beam 3.

The adding process of the lubricating oil of the invention is as follows: lubricating oil enters into oil passing ring groove 8 from oil filler point 5 to in entering into oil storage tank 6 respectively through oil passing hole 11, oil storage body 7 of oil storage tank 6 adsorbs lubricating oil earlier, and too much lubricating oil enters into on roller 4 from the cooperation department of tie-beam 3 and roller 4, thereby lubricates roller 4, and simultaneously, partial lubricating oil also enters into roller 4 from oil outlet 12 on, increases the channel that adds of lubricating oil. The advantage does, can avoid lubricating oil to leak from outer lane 2 after 2 and the sealed block of holder of outer lane, and oil storage body 7 can adsorb too much lubricating oil, avoids the lubricating oil of interpolation to run off once only, and in follow-up, oil storage body 7 can volatilize partial lubricating oil and continue to keep the smooth nature of roller 4 rotation, so, this bearing adds lubricating oil convenient, even, can effectively prolong lubricated ageing, avoids the waste of too much lubricating oil.

Claims

1. A novel needle roller bearing comprises an outer ring (2), a retainer and rollers (4), wherein the retainer comprises retaining rings (1) positioned at two axial sides and connecting beams (3) for connecting the two retaining rings (1), the connecting beams (3) are uniformly distributed along the circumferential direction of the retaining rings (1), window holes with the same number as the rollers (4) are formed between the adjacent connecting beams (3), the rollers (4) are kept in the window holes, the novel needle roller bearing is characterized in that the outer ring (2) is hermetically buckled between the retaining rings (1) at the two sides, the inner wall of the outer ring (2) is attached to a rolling body, an oil storage groove (6) is sunken at one side of the connecting beams (3) close to the outer ring (2), an oil passing ring groove (8) concentric with the retaining rings (1) is arranged inside the retaining rings (1), oil passing holes (11) for communicating the oil storage groove (6) and the oil passing ring groove (8) are arranged on the inner wall of the retaining rings (1), and an oil storage body (7) is arranged, an oil filling hole (5) communicated with the oil passing ring groove (8) is arranged on the outer wall of the baffle ring (1).

2. The novel needle bearing of claim 1, wherein: a plurality of oil outlets (12) are arranged on the two side wall surfaces of the connecting beam (3).

3. The novel needle bearing of claim 1, wherein: the outer ring (2) is semicircular and is provided with two pieces, the outer ring (2) is circular after being butted, and a sealing clamping structure is arranged between the outer ring (2) and the baffle ring (1).

4. The novel needle bearing of claim 3, wherein: the sealing clamping structure comprises a clamping groove (10) formed in the inner wall of the retaining ring (1) and clamping edges (9) arranged on two sides of the outer ring (2) and connected with the clamping groove (10), wherein the clamping edges (9) are arranged towards one side, far away from the center of the clamping groove (10), of the inner wall of the clamping groove (10) in an upward inclined mode, a sealing ring (13) is arranged on the inner wall of the clamping groove (10), and the clamping edges (9) are abutted to the sealing ring (13) after being clamped with the clamping groove (10).

5. The novel needle bearing of claim 4, wherein: the butt joint of the outer ring (2) is provided with an elastic layer, and after the outer ring (2) is clamped with the clamping groove (10), the butt joint of the outer ring (2) is mutually in interference butt joint.

6. The novel needle bearing of claim 1, wherein: the oil storage body (7) is made of cotton.