CN212775158U

CN212775158U - Durable thrust bearing

Info

Publication number: CN212775158U
Application number: CN202021496879.0U
Authority: CN
Inventors: 潘康华; 潘坚俊
Original assignee: Xinchang Kanglida Bearing Co ltd
Current assignee: Xinchang Kanglida Bearing Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-03-23
Anticipated expiration: 2030-07-25

Abstract

The utility model discloses a durable type thrust bearing relates to planar bearing, aims at solving and has the clearance between axle piece, seat piece and the holder, influences the problem that thrust bearing used in the external dust entering clearance, and its technical scheme main points are: the retainer comprises a seat piece, a shaft piece and a retainer positioned between the seat piece and the shaft piece, wherein a blocking part sleeved outside the seat piece and the shaft piece is arranged on the peripheral wall of the retainer, and a blocking ring positioned above the blocking part is sleeved on the peripheral wall of the shaft piece. The utility model discloses a fender portion keeps off with keeping off the dust that the ring pair external world carries out the check, improves thrust bearing's dustproof ability, improves thrust bearing's life.

Description

Durable thrust bearing

Technical Field

The utility model relates to a flat bearing, more specifically say, it relates to a durable type thrust bearing.

Background

Thrust bearings, also known as thrust bearings, are generally composed of two or more thrust washers and a plurality of rolling elements, the thrust washers are generally divided into a shaft plate and a seat plate, and the rolling elements are generally combined into a whole by iron or copper cages in the most common mode. This type of bearing is most commonly a steel ball type thrust bearing.

The existing thrust ball bearing is placed between a shaft piece and a seat piece by a retainer with balls, and the shaft piece and the seat piece rotate relatively by providing axial rotating acting force at one position of the shaft piece, so that the friction force between two mutually rotating planes is reduced.

For the easy to assemble holder, need to leave the clearance between axle piece and the seat piece, but thrust ball bearing uses the in-process, and the impurity of external dust small granule such as gets into the clearance between holder and axle piece or the seat piece easily, and the adhesion is at the surface of ball to influence the rotation of ball, influence thrust ball bearing's life.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a durable type thrust bearing carries out the check through fender portion and fender ring to external dust and keeps off, improves thrust bearing's dustproof ability, improves thrust bearing's life.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a durable type thrust bearing, includes seat piece, axle piece and is located the holder between seat piece and the axle piece, be equipped with the cover on the periphery wall of holder and locate the outer fender portion of seat piece and axle piece, the cover is equipped with the fender ring that is located fender portion top on the periphery wall of axle piece.

Through adopting above-mentioned technical scheme, the both sides of holder are established outside axle piece and seat piece through keeping off the portion cover, thereby make the clearance between holder and axle piece or the seat piece be L shape, thereby obstruct external dust and pass through the clearance between fender portion and axle piece or the seat piece, reduce the influence of dust to the rolling element, improve thrust bearing pivoted smoothness nature and life, through being located the axle piece outside and being located the fender ring of fender portion top, can play the effect of check to the dust that keeps off the ring top, further improve thrust bearing's dustproof ability.

The utility model discloses further set up to: the outer diameter of the baffle ring is larger than the distance between the baffle part and the axis of the shaft piece.

Through adopting above-mentioned technical scheme, because the external diameter that keeps off the ring is greater than the distance between the axis of fender portion to axle piece to the case that increases and keep off the ring keeps off the effect, reduces the dust and piles up between fender portion and fender ring.

The utility model discloses further set up to: the longitudinal section of the blocking part is in a right trapezoid shape, the waist edge of the blocking part is arranged in the direction opposite to the shaft piece or the seat piece, and the thickness of the blocking part is gradually reduced from the retainer to the shaft piece or the seat piece.

Through adopting above-mentioned technical scheme, because the longitudinal section of fender portion is right trapezoid, and the waist limit sets up to axle piece or seat piece orientation dorsad to when making external dust fall to fender portion, enable the dust that is located on the waist limit and along the surface landing of fender portion, improve thrust bearing's dustproof ability.

The utility model discloses further set up to: an annular oil storage tank is arranged on the inner peripheral wall of the blocking part.

Through adopting above-mentioned technical scheme, through the oil storage tank of seting up on the internal perisporium of fender portion, can reduce the area of contact between fender portion and the axle piece, improve axle piece and holder pivoted smoothness nature to save lubricating oil, improve thrust bearing's life.

The utility model discloses further set up to: an arc-shaped convex part positioned between the two blocking parts is formed on the peripheral wall of the retainer.

Through adopting above-mentioned technical scheme, through being located the arc convex part between two fender portions, can increase the area of holder periphery wall, the people's dismouting holder of being convenient for.

The utility model discloses further set up to: the limiting groove used for containing the baffle ring is formed in the outer peripheral wall of the shaft piece, and the baffle ring has elastic recovery characteristics.

Through adopting above-mentioned technical scheme, through the setting of spacing groove, the installation of the fender ring of being convenient for, and improve the area of contact and the joint strength between fender ring and the axle piece, play better check and keep off the effect.

The utility model discloses further set up to: the retainer is rotatably connected with a plurality of rolling bodies, and arc-shaped grooves used for containing the rolling bodies are formed in one sides, facing the retainer, of the shaft sheet and the seat sheet.

Through adopting above-mentioned technical scheme, through the setting of arc wall, can play the effect of location to the rolling element to when axle piece and holder rotate, play better guide effect to the rolling element.

To sum up, the utility model discloses following beneficial effect has:

the both sides of holder are established outside axle piece and seat piece through the fender portion cover to make the clearance between holder and axle piece or the seat piece be L shape, thereby hinder external dust through the clearance between fender portion and axle piece or the seat piece, reduce the influence of dust to the rolling element, improve thrust bearing pivoted smoothness nature and life, through being located the axle piece outside and being located the fender ring of fender portion top, can play the effect of check fender to the dust that keeps off the ring top, further improve thrust bearing's dustproof ability.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a cross-sectional view of the present invention;

fig. 5 is an enlarged schematic view of a portion B in fig. 4.

In the figure: 1. a seat sheet; 2. a shaft sheet; 3. a holder; 4. a stopper; 5. a baffle ring; 6. an oil storage tank; 7. an arc-shaped convex part; 8. a limiting groove; 9. a rolling body; 10. an arc-shaped groove.

Detailed Description

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

The utility model provides a durable type thrust bearing, as shown in fig. 1 and 3, including seat piece 1, axle piece 2 and be located seat piece 1 and axle piece 2 between holder 3, it is connected with a plurality of balls as rolling element 9 to rotate on the holder 3, axle piece 2 and seat piece 1 are offered towards one side of holder 3 and are used for holding arc wall 10 of rolling element 9, concretely, the longitudinal section semicircular in shape of arc wall 10, and integrated into one piece is established and is established the fender portion 4 of cover outside seat piece 1 and axle piece 2 on holder 3's the periphery wall, the cover is equipped with on axle piece 2's the periphery wall and is located the fender ring 5 of fender portion 4 top, fender ring 5 forms for rubber material integrated into one piece processing.

As shown in fig. 2, 4 and 5, the outer diameter of the baffle ring 5 is greater than the distance between the baffle portion 4 and the axis of the shaft piece 2, the longitudinal section of the baffle portion 4 is in the shape of a right trapezoid, the right-angle side of the baffle portion 4 is arranged towards the direction of the shaft piece 2, the waist side of the baffle portion 4 is arranged back to the direction of the shaft piece 2 or the direction of the seat piece 1, the thickness of the baffle portion 4 gradually decreases from the retainer 3 to the direction of the shaft piece 2 or the direction of the seat piece 1, an arc-shaped convex portion 7 located between the two baffle portions 4 is formed on the outer peripheral wall of the retainer 3 in an outward protruding manner, an annular oil storage groove 6 is formed on the inner peripheral wall of the baffle portion 4, a limiting groove 8 for accommodating the baffle ring 5 is formed on the outer peripheral wall of the shaft piece.

In this embodiment, the shaft piece 2 and the seat piece 1 are formed by integrally processing bearing steel made of copper-aluminum alloy, the retainer 3 is formed by forging and pressing brass, and the rolling element 9 is made of chromium-nickel alloy steel and manganese-chromium alloy steel, so that the shaft piece 2 and the seat piece 1 have good bearing capacity and deformation resistance, and the rolling element 9 made of chromium-nickel alloy steel and manganese-chromium alloy steel improves the impact resistance of the thrust bearing and has good performance.

During the working process, when the thrust bearing is assembled, the retainer 3 with the rolling bodies 9 placed between the shaft piece 2 and the seat piece 1 can be limited in the arc-shaped groove 10 through the arc-shaped groove 10 on the shaft piece 2 and the seat piece 1, the installation accuracy of the shaft piece 2, the seat piece 1 and the retainer 3 is improved, when the shaft piece 2 and the seat piece 1 are respectively positioned at two sides of the retainer 3, the blocking parts 4 at two sides of the retainer 3 are sleeved outside the shaft piece 2 and the seat piece 1, so that the gap between the retainer 3 and the shaft piece 2 as well as the seat piece 1 is reduced, the external dust is prevented from entering the thrust bearing, the rotating smoothness of the bearing is further improved, the service life of the bearing is prolonged, the oil storage groove 6 is formed at one side of the blocking part 4 facing the shaft piece 2, so that when people fill lubricating oil between the retainer 3 and the shaft piece 2, the lubricating oil can be cached through the oil storage groove 6, and the oil storage groove, the contact area between the blocking part 4 and the shaft piece 2 can be reduced, the rotating fluency of the shaft piece 2 and the retainer 3 is improved, the outer surface of the blocking part 4 is obliquely arranged, the blocking ring 5 positioned above the blocking part 4 is sleeved on the shaft piece 2, small particles of impurities such as external dust and the like are blocked by the blocking ring 5, and the dust can slide to the arc-shaped convex part 7 along the outer surface of the blocking part 4 when falling to the blocking part 4 through the obliquely arranged outer surface of the blocking part 4, the dust accumulation at the joint of the blocking part 4 and the shaft piece 2 is reduced, the dustproof capacity of the thrust bearing is improved, the thrust bearing has good rotating performance, the contact area between the outer peripheral wall of the retainer 3 and a hand part can be increased through the arrangement of the arc-shaped convex part 7, the retainer 3 is convenient for people to take and assemble the thrust bearing, the working efficiency of the thrust bearing is improved, because the limiting groove 8 for accommodating the blocking ring 5 is arranged on the, when the baffle ring 5 made of rubber is sleeved outside the shaft piece 2, the baffle ring 5 is positioned, the consistency of the distance between the baffle ring 5 and the baffle part 4 is improved, the connection strength between the baffle ring 5 and the shaft piece 2 is improved, a good blocking effect is achieved on dust, and the service life of the thrust bearing is prolonged.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A durable thrust bearing characterized by: including seat piece (1), axle piece (2) and be located holder (3) between seat piece (1) and axle piece (2), be equipped with on the periphery wall of holder (3) and overlap the fender portion (4) of locating seat piece (1) and axle piece (2) outer, the cover is equipped with on the periphery wall of axle piece (2) and is located fender ring (5) of keeping off portion (4) top.

2. A durable thrust bearing in accordance with claim 1, wherein: the outer diameter of the baffle ring (5) is larger than the distance between the baffle part (4) and the axis of the shaft piece (2).

3. A durable thrust bearing in accordance with claim 1, wherein: the longitudinal section of the blocking part (4) is in a right trapezoid shape, the waist edge of the blocking part (4) is arranged in the direction back to the shaft piece (2) or the seat piece (1), and the thickness of the blocking part (4) is gradually reduced from the retainer (3) to the direction of the shaft piece (2) or the seat piece (1).

4. A durable thrust bearing in accordance with claim 1, wherein: an annular oil storage tank (6) is arranged on the inner peripheral wall of the blocking part (4).

5. A durable thrust bearing in accordance with claim 1, wherein: an arc-shaped convex part (7) positioned between the two blocking parts (4) is formed on the peripheral wall of the retainer (3).

6. A durable thrust bearing in accordance with claim 1, wherein: offer on the periphery wall of axle piece (2) and be used for holding spacing groove (8) that keep off ring (5), keep off ring (5) and have the elasticity recovery characteristic.

7. A durable thrust bearing in accordance with claim 1, wherein: the rolling bearing is characterized in that the retainer (3) is rotatably connected with a plurality of rolling bodies (9), and arc-shaped grooves (10) used for containing the rolling bodies (9) are formed in one sides, facing the retainer (3), of the shaft sheet (2) and the seat sheet (1).