CN217842375U

CN217842375U - Hub bearing unit for vehicle

Info

Publication number: CN217842375U
Application number: CN202221721754.2U
Authority: CN
Inventors: 陈方日; 陈筱艺
Original assignee: Zhejiang Zhongjian Precision Machinery Co ltd
Current assignee: Zhejiang Zhongjian Precision Machinery Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-11-18
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to an auto-parts technical field's automobile-used wheel hub bearing unit, including bearing inner race and the solid fixed ring of cover on bearing inner race surface, bearing inner race's inside is rotated and is connected with the bearing inner race, a plurality of equidistance steel ball spouts of arranging are all seted up to bearing inner race and a side surface that the bearing inner race is relative, and is a plurality of the inside of steel ball spout rolls has a plurality of steel balls, a plurality of oil feed through-holes have been seted up to bearing inner race's inside, two screw thread through-holes have all been seted up to bearing inner race and solid fixed ring's inside, two sealed through-hole has been seted up to screw thread through-hole's one end. The lubricating oil in the sealing cavity is adsorbed through the second oil absorption sponge, the first oil absorption sponge is adsorbed for the second time to the lubricating oil in the oil inlet through hole, and the first oil absorption sponge is used for lubricating the bearing outer ring and the bearing inner ring for a long time, so that the service life of the hub bearing is prolonged, and the abrasion effect on the hub bearing is effectively reduced.

Description

Hub bearing unit for vehicle

Technical Field

The utility model relates to the technical field of auto-parts, especially relate to automobile-used wheel hub bearing unit.

Background

The main function of the hub bearing is to bear load and provide precise guidance for the rotation of the hub, and the hub bearing bears axial load and radial load and is a very important part.

Although the hub bearing unit for the vehicle disclosed in the granted publication No. CN207989529U solves the problems that the sealing of the hub bearing unit is better and the entry of water and slurry is effectively prevented, the hub bearing generates friction during the use process, and the abrasion of the hub bearing needs to be reduced by lubricating oil, but the lubricating oil generally only wets the steel ball ring layer in the hub bearing, but the innermost side of the hub bearing cannot enter the lubricating oil, and the lubricating oil needs to be manually and separately refilled, so we propose the hub bearing unit for the vehicle.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a wheel hub bearing unit for vehicle has the steel ball circle in to the wheel hub bearing when in situ dip lubricating oil, makes the most inboard lubricating oil that also dips of wheel hub bearing, avoids the effect of wheel hub bearing wearing and tearing.

The technical scheme of the utility model is that: a plurality of steel ball chutes which are arranged in an equal distance are formed in one side surface, opposite to the bearing outer ring and the bearing inner ring, of the bearing outer ring, a plurality of steel balls roll in the steel ball chutes, a plurality of oil inlet through holes are formed in the bearing inner ring, two threaded through holes are formed in the bearing outer ring and the fixing ring, a sealing through hole is formed in one end of each threaded through hole, the sealing through holes are multiple, an oil absorption sponge is fixedly connected to the inside of one end of each oil inlet through hole, a plurality of oil absorption sponges are fixedly connected to the outer side surface of the bearing inner ring, and the oil absorption sponges are arranged on the other end surface of the oil inlet through holes respectively.

In a further technical scheme, the top and the bottom of the inner side surface of the bearing outer ring are both fixedly connected with sealing rings, the inner side surface of each sealing ring is both fixedly connected with a sealing strip, two sealing grooves are formed in the outer surface of the bearing inner ring, and one ends of the sealing strips rotate inside the sealing grooves.

In a further technical scheme, sealing plugs are arranged in the two sealing through holes, and sealing baffles are fixedly connected to the ends of the two sealing plugs, which are not opposite to each other.

In a further technical scheme, the inner parts of the two threaded through holes are respectively in threaded connection with a threaded plug, and one end of each threaded plug is fixedly connected with one end of each sealing plug.

In a further technical scheme, the size of the threaded through hole is smaller than that of the sealing through hole, and the size of the threaded plug is smaller than that of the sealing plug.

In a further technical scheme, the sealing strip and the sealing groove are both in an annular shape.

The utility model has the advantages that:

1. the lubricating oil in the sealing cavity is adsorbed by the second oil absorption sponge, the adsorbed and full lubricating oil flows into the oil inlet through hole, the first oil absorption sponge adsorbs the lubricating oil in the oil inlet through hole for the second time, and the adsorbed and full first oil absorption sponge can soak the lubricating oil in the bearing inner ring, so that the lubricating oil has a lubricating effect on the bearing outer ring, the bearing inner ring and the middle connecting piece, and is convenient for lubricating for a long time, the lubricating oil must be replenished in a short time, the service life of the hub bearing is prolonged, and the abrasion effect on the hub bearing is effectively reduced;

2. can make through sealing strip and sealed recess have sealed chamber between bearing inner race and the bearing outer race, be convenient for store the effect of lubricating oil, prevent the effect that lubricating oil flowed out simultaneously, can improve the inside sealed effect of sealed through-hole through seal baffle and sealing plug, avoid the effect that lubricating oil flowed out.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a sectional view of the bearing outer ring structure of the embodiment of the present invention;

fig. 3 is an enlarged view of the structure at a in fig. 2 according to the embodiment of the present invention;

fig. 4 is an enlarged view of the structure B in fig. 2 according to the embodiment of the present invention;

description of reference numerals:

1. a bearing outer race; 2. a fixing ring; 3. a bearing inner race; 4. a steel ball chute; 5. steel balls; 6. an oil inlet through hole; 7. a threaded through hole; 8. sealing the through hole; 9. second, oil absorbing sponge; 10. a seal ring; 11. a seal strip; 12. sealing the groove; 13. a sealing plug; 14. sealing the baffle; 15. a threaded plug; 16. an oil absorption sponge.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

Example (b):

as shown in fig. 1-4, a wheel hub bearing unit for a vehicle includes a bearing outer ring 1 and a fixing ring 2 sleeved on the surface of the bearing outer ring 1, the bearing outer ring 1 is connected with a bearing inner ring 3 in internal rotation, a plurality of steel ball chutes 4 arranged at equal intervals are formed in one side surface of the bearing outer ring 1 opposite to the bearing inner ring 3, a plurality of steel balls 5 roll in the steel ball chutes 4, a plurality of oil inlet through holes 6 are formed in the bearing inner ring 3, two threaded through holes 7 are formed in the bearing outer ring 1 and the fixing ring 2, a sealing through hole 8 is formed in one end of each threaded through hole 7, a first oil absorption sponge 16 is fixedly connected in the interior of one end of each oil inlet through hole 6, a plurality of second oil absorption sponges 9 are fixedly connected on the outer side surface of the bearing inner ring 3, and the second oil sponges 9 are respectively arranged on the other end surface of each oil inlet through hole 6.

The working principle of the technical scheme is as follows:

lubricating oil is replenished to the inside of the sealing through hole 8 and the thread through hole 7 through the replenishing device, the lubricating oil enters a sealing cavity between the bearing outer ring 1 and the bearing inner ring 3 through the sealing through hole 8 and the thread through hole 7 to be stored, the lubricating oil in the sealing cavity is adsorbed through the second oil absorption sponge 9, the adsorbed and full lubricating oil flows into the oil inlet through hole 6, the lubricating oil in the oil inlet through hole 6 is secondarily adsorbed through the first oil absorption sponge 16, the adsorbed and full first oil absorption sponge 16 can adsorb the lubricating oil in the bearing inner ring 3, the lubricating oil is lubricated between the bearing outer ring 1, the bearing inner ring 3 and the connecting piece in the middle of the bearing inner ring 3, the lubricating oil is adsorbed through the first oil absorption sponges 16 and the second oil absorption sponge 9, the lubricating oil overflows after being sufficiently adsorbed and filled, the lubricating oil can be conveniently lubricated for a long time, the lubricating oil must be replenished for a short time is avoided, the service life of the hub bearing is prolonged, and the abrasion effect on the hub bearing is effectively reduced.

In another embodiment, as shown in fig. 1, 2 and 3, the top and the bottom of the inner side surface of the bearing outer ring 1 are fixedly connected with the sealing rings 10, the inner side surfaces of the two sealing rings 10 are fixedly connected with the sealing strips 11, the outer surface of the bearing inner ring 3 is provided with two sealing grooves 12, and one end of each of the two sealing strips 11 rotates inside the corresponding sealing groove 12.

Reduce the friction between bearing inner race 3 and the bearing outer race 1 through sealing washer 10, can make and have sealed chamber between bearing inner race 3 and the bearing outer race 1 through sealing strip 11 and sealed recess 12, be convenient for store the effect of lubricating oil, prevent the effect that lubricating oil flows simultaneously.

In another embodiment, as shown in fig. 1, 2 and 4, a sealing plug 13 is arranged inside each of the two sealing through holes 8, and a sealing baffle 14 is fixedly connected to the ends of the two sealing plugs 13 which are not opposite to each other.

The sealing baffle 14 and the sealing plug 13 can improve the sealing effect inside the sealing through hole 8, and the lubricating oil is prevented from flowing out.

In another embodiment, as shown in fig. 2 and 4, a threaded plug 15 is screwed into each of the two threaded through holes 7, and one end of each of the two threaded plugs 15 is fixedly connected with one end of the sealing plug 13;

the threaded through hole 7 has a smaller size than the sealing through hole 8 and the threaded plug 15 has a smaller size than the sealing plug 13.

The sealing effect of the sealing plug 13 and the fixing effect of the threaded plug 15 can be facilitated by the fact that the sealing plug 13 and the sealing through hole 8 are larger than the threaded plug 15 and the threaded through hole 7.

In another embodiment, as shown in fig. 1, 2 and 3, the sealing tape 11 and the sealing groove 12 are each shaped in a ring shape.

The sealing strip 11 and the sealing groove 12 are annular, so that a sealing cavity is formed between the bearing outer ring 1 and the bearing inner ring 3, and the lubricating oil can be stored conveniently.

The above embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. Automobile-used wheel hub bearing unit includes bearing inner race (1) and cover solid fixed ring (2) on bearing inner race (1) surface, its characterized in that: the inside of bearing inner race (1) rotates and is connected with bearing inner race (3), a plurality of equidistance steel ball spout (4) of arranging are all seted up to bearing inner race (1) and the relative side surface of bearing inner race (3), and is a plurality of the inside roll of steel ball spout (4) has a plurality of steel balls (5), a plurality of oil feed through-holes (6) have been seted up to the inside of bearing inner race (3), two screw thread through-holes (7) have all been seted up to the inside of bearing inner race (1) and solid fixed ring (2), two sealed through-hole (8) have been seted up to the one end of screw thread through-hole (7), and are a plurality of oil absorption sponge (16) of the inside fixedly connected with of oil feed through-hole (6) one end, the outside fixed surface of bearing inner race (3) is connected with a plurality of sponge oil absorption (9), and is a plurality of establish respectively at the other end surface of oil feed through-hole (6) of No. oil absorption sponge (9).

2. The vehicular hub bearing unit according to claim 1, wherein: bearing inner race (1) inboard surface's the equal fixedly connected with sealing washer (10) in top and bottom, two the inboard surface equal fixedly connected with sealing strip (11) of sealing washer (10), two sealed recess (12) have been seted up to the surface of bearing inner race (3), two the one end of sealing strip (11) is rotated in the inside of sealed recess (12).

3. The vehicular hub bearing unit according to claim 1, wherein: two the inside of sealed through-hole (8) all is equipped with sealing plug (13), two sealing plug (13) equal fixedly connected with of one end not relative sealing baffle (14).

4. The vehicular hub bearing unit according to claim 3, wherein: the inner parts of the two threaded through holes (7) are all in threaded connection with threaded plugs (15), and one ends of the two threaded plugs (15) are all fixedly connected with one ends of the sealing plugs (13).

5. The vehicular hub bearing unit according to claim 4, wherein: the size of the threaded through hole (7) is smaller than that of the sealing through hole (8), and the size of the threaded plug (15) is smaller than that of the sealing plug (13).

6. The hub bearing unit for a vehicle according to claim 2, wherein: the shapes of the sealing strip (11) and the sealing groove (12) are both annular.