CN210531407U

CN210531407U - Single-row tapered roller bearing

Info

Publication number: CN210531407U
Application number: CN201921319376.3U
Authority: CN
Inventors: 武卫斌
Original assignee: Hangzhou Bearing Group Co ltd; Hangzhou Humanistic Equipment Bearing Co ltd; C&U Group Ltd; Shanghai C&U Group Co Ltd
Current assignee: Hangzhou Bearing Group Co ltd; Hangzhou Humanistic Equipment Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-15
Anticipated expiration: 2029-08-14

Abstract

The utility model provides a single-row tapered roller bearing, including outer lane, inner circle and roller, the roller is formed with the raceway including main aspects and tip between outer lane and the inner circle, and the main aspects and the tip that the inner circle corresponds the roller are provided with the oil drain respectively inner circle its lateral wall department that is close to the roller tip be provided with and lead the oil groove, lead the oil groove and be the annular, and lead the notch of oil groove and set up towards axle center direction, the one end department equipartition of leading the oil groove has a plurality of oil inlets, the oil drain of oil inlet and roller tip be linked together through the current-limiting passageway, the other end department of leading the oil groove is connected with and is the annular oil level of getting rid of. The utility model provides a not enough to prior art, the utility model provides a can avoid getting into the inside lubricating oil of bearing not enough or too much, can prevent the single-row tapered roller bearing of bearing sintering damage when reducing the extra loss.

Description

Single-row tapered roller bearing

Technical Field

The utility model relates to a single-row tapered roller bearing.

Background

The single-row tapered roller bearing is a rolling bearing with a roller in a truncated cone shape, is mainly used for front and rear wheels of an automobile and a differential mechanism, and is also used for a speed reduction device of other mechanical equipment. Taking a differential as an example, an oil passage is usually arranged between two bearings, and during the operation of the bearings, lubricating oil is guided to the space between the two bearings through the oil passage, and then under the action of centrifugal force when the bearings rotate, the lubricating oil flows to the large end along the small end of the roller, so that the lubrication of the bearings is realized.

However, in the process of lubricating the tapered roller bearing in the prior art, the lubricating oil in the bearing is too much, so that the retainer and the rollers are stirred with the lubricating oil in the rotating process, and extra loss is caused.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a can avoid getting into the inside lubricating oil of bearing not enough or too much, can prevent the single-row tapered roller bearing of bearing sintering damage when reducing the extra loss.

In order to achieve the above object, the utility model provides a single-row tapered roller bearing, it is generally including outer lane, inner circle and roller, and the roller is formed with the raceway between outer lane and the inner circle including main aspects and tip, and the main aspects and the tip that the inner circle corresponds the roller are provided with the oil groove respectively, its lateral wall department that is close to the roller tip of inner circle be provided with and lead the oil groove, lead the oil groove and be the annular, and lead the notch of oil groove and towards the axle center direction setting, the equipartition of one end department of leading the oil groove has a plurality of oil inlets, the oil groove of oil inlet and roller tip be linked together through current-limiting channel, the other end department of leading the oil groove is connected with and is the annular oil face of getting.

The technical scheme has the advantages that: in the running process of the bearing, lubricating oil is driven by centrifugal force and flows to the oil guide groove along the side wall of the inner ring of the bearing close to the small end of the roller, then the lubricating oil enters the bearing through the flow limiting channel in the process of entering the bearing, the flow of the lubricating oil is limited through the flow limiting channel, after the lubricating oil in the oil guide groove is filled with the lubricating oil, the lubricating oil overflows to the oil throwing surface at the other end of the oil guide groove, the bearing is thrown away through the oil throwing surface, excessive lubricating oil is prevented from entering the bearing, the retainer and the roller are stirred with the lubricating oil in the rotating process, and extra loss is caused. And under the condition that the subsequent lubricating oil is insufficient, the lubricating oil in the oil guide groove can still be used for supplementing the interior of the bearing, so that the condition that the roller and the inner wall of the raceway are sintered and damaged due to insufficient lubricating oil is avoided.

The utility model discloses can further set up to: one end of the oil guide groove is connected with a drainage surface, and the drainage surface is obliquely arranged towards the direction of the notch of the oil guide groove.

Through further setting up, lubricating oil is guided to leading in the oil groove by the drainage face that sets up towards leading oil groove notch direction slope.

The utility model discloses can further set up to: the inner ring is provided with a plurality of oil passages which are respectively communicated with the two oil grooves.

Through further setting up, compare prior art, lubricating oil flows to the big end department of bearing roller gradually along with the centrifugal force when bearing operation, and lubricated comparatively slowly, probably leads to the big end department of roller can not in time obtain the lubrication, takes place the phenomenon of sintering with the raceway of inner circle, and it can be through two oil groove fluid passageways of a plurality of intercommunications, with higher speed to the lubrication of roller big end.

The utility model discloses can further set up to: the extending direction of the oil passage is inclined relative to the axial direction of the roller.

Through further setting, avoid the inner wall of fluid passageway to form the interference at the roll to the roller.

Drawings

FIG. 1 is a cross-sectional view of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion a in FIG. 1 according to an embodiment of the present invention;

fig. 3 is a partial schematic view of an inner ring in an embodiment of the present invention.

Detailed Description

The utility model relates to an embodiment of single-row tapered roller bearing is shown in figures 1-3: including outer lane 1, inner circle 2, roller 3 and to form the holder 4 of keeping apart between the roller, roller 3 including main aspects 31 and tip 32, be formed with the raceway 5 that supplies the roller installation between outer lane 1 and the inner circle 2, the main aspects and the tip that inner circle 2 corresponds roller 3 are provided with oil groove 21 respectively, inner circle 2 its lateral wall department that is close to roller tip 32 be provided with and lead oil groove 22, lead oil groove 22 be the annular, and lead the notch 221 of oil groove 22 and set up towards the axle center direction, lead one end department equipartition of oil groove 22 and have a plurality of oil inlets 23, oil inlet 23 and the oil groove 21 of roller tip be linked together through current-limiting channel 24, lead another end department of oil groove 22 and be connected with and be annular oil throwing face 25. One end of the oil guide groove 22 is connected with a drainage surface 26, and the drainage surface 26 is obliquely arranged towards the direction of the oil guide groove opening 221. The inner ring 2 is provided with a plurality of oil passages 27, and the oil passages 27 are respectively communicated with the two oil grooves 21. The oil passage 27 extends in a direction inclined with respect to the axial direction of the roller 3.

The above examples are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides a single-row tapered roller bearing, is including outer lane, inner circle and roller, and the roller is formed with the raceway including main aspects and tip between outer lane and the inner circle, and the main aspects and the tip that the inner circle corresponds the roller are provided with oil groove, its characterized in that respectively: the inner ring is provided with an oil guide groove at the side wall close to the small end of the roller, the oil guide groove is annular, the notch of the oil guide groove is arranged towards the axis direction, a plurality of oil inlets are uniformly distributed at one end of the oil guide groove, the oil inlets are communicated with the oil groove at the small end of the roller through a flow limiting channel, and the other end of the oil guide groove is connected with an annular oil throwing surface.

2. The single-row tapered roller bearing according to claim 1, characterized in that: one end of the oil guide groove is connected with a drainage surface, and the drainage surface is obliquely arranged towards the direction of the notch of the oil guide groove.

3. The single-row tapered roller bearing according to claim 1 or 2, characterized in that: the inner ring is provided with a plurality of oil passages which are respectively communicated with the two oil grooves.

4. The single-row tapered roller bearing according to claim 3, characterized in that: the extending direction of the oil passage is inclined relative to the axial direction of the roller.