CN213064341U

CN213064341U - Plane thrust bearing

Info

Publication number: CN213064341U
Application number: CN202021389122.1U
Authority: CN
Inventors: 俞浙新; 綦晓伟
Original assignee: Xinchang County Niulun Bearing Co ltd
Current assignee: Xinchang County Niulun Bearing Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-04-27
Anticipated expiration: 2030-07-15

Abstract

A plane thrust bearing comprises an upper ring and a lower ring, wherein an upper ring square ring groove is formed in the lower end face of the upper ring, a lower ring square ring groove is formed in the upper surface of a bottom plate of the lower ring, the upper ring square ring groove is opposite to the lower ring square ring groove, and a ball and a roller are clamped in the upper ring square ring groove and the lower ring square ring groove; an annular retainer ring is formed on a bottom plate of the lower ring, the piston rings are clamped in the piston ring groove of the upper ring and the piston ring groove of the retainer ring, the piston rings are obliquely opened piston rings, and more than two piston rings are arranged between the upper ring and the annular retainer ring; the retainer is provided with a plurality of square holes, the ball and the roller are inserted in the square holes, the retainer is arranged between the upper ring and the bottom plate, and grease is injected into a space formed by the annular retainer ring and the bottom plate. The bearing performance of the oil pumping unit is improved, the upper ring and the lower ring are sealed by piston rings, oil is not easy to leak, and the service life of the oil pumping unit is prolonged.

Description

Plane thrust bearing

The technical field is as follows:

the utility model relates to a bearing technical field, more specifically say and relate to a plane thrust bearing that lubricating property is good, and grease sealing performance is good and bearing performance is good.

Background art:

the existing plane thrust bearing has a ball clamped between an upper ring and a lower ring, and the upper ring and the lower ring are sealed through an oil seal. The disadvantages are as follows: 1. because it only adopts the ball, the bearing nature of upper circle is relatively poor. 2. The upper ring and the lower ring are sealed by the oil seal, the service life of the oil seal is short, the oil seal is damaged, dust enters the space between the upper ring and the lower ring, and balls are easy to generate heat and wear during working, so that the bearing is damaged.

The utility model has the following contents:

the utility model aims at providing a plane thrust bearing to prior art not enough, and its bearing performance improves to some extent, and the upper ring adopts the piston ring to seal down between the circle, and the grease is difficult for leaking, has increased the life of product.

The technical solution of the utility model is as follows:

a plane thrust bearing comprises an upper ring and a lower ring, wherein an upper ring square ring groove is formed in the lower end face of the upper ring, a lower ring square ring groove is formed in the upper surface of a bottom plate of the lower ring, the upper ring square ring groove is opposite to the lower ring square ring groove, and a ball and a roller are clamped in the upper ring square ring groove and the lower ring square ring groove;

an annular retainer ring is formed on a bottom plate of the lower ring, the piston rings are clamped in the piston ring groove of the upper ring and the piston ring groove of the retainer ring, the piston rings are obliquely opened piston rings, and more than two piston rings are arranged between the upper ring and the annular retainer ring;

the retainer is provided with a plurality of square holes, the ball and the roller are inserted in the square holes, the retainer is arranged between the upper ring and the bottom plate, and grease is injected into a space formed by the annular retainer ring and the bottom plate.

The diameter of the ball and the roller are the same.

The square holes are arrayed on the retainer in an annular mode by taking the circle center of the retainer as the center, and the number of the square holes is even; two adjacent quad slit, the plug bush has the ball, another plug bush has the roller in one of them quad slit.

And a lower ring annular sheet is formed at the upper part of the annular retainer ring.

The beneficial effects of the utility model reside in that:

the bearing performance of the oil pumping unit is improved, the upper ring and the lower ring are sealed by piston rings, oil is not easy to leak, and the service life of the oil pumping unit is prolonged.

Description of the drawings:

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

FIG. 2 is a schematic view of a piston ring;

fig. 3 is a schematic structural view of the cage.

In the figure: 1. winding; 2. a lower ring; 3. a ball bearing; 4. a roller; 5. a holder; 6. a piston ring.

The specific implementation mode is as follows:

example (b): as shown in fig. 1 to 3, a plane thrust bearing includes an upper ring 1 and a lower ring 2, an upper ring square ring groove 11 is formed on the lower end surface of the upper ring 1, a lower ring square ring groove 2a is formed on the upper surface of a bottom plate 21 of the lower ring 2, the upper ring square ring groove 11 is opposite to the lower ring square ring groove 2a, and balls 3 and rollers 4 are clamped in the upper ring square ring groove 11 and the lower ring square ring groove 2 a;

an annular retainer ring 22 is formed on a bottom plate 21 of the lower ring 2, the piston ring 6 is clamped in the piston ring groove 12 and the retainer ring groove 221 of the upper ring, the piston ring 6 is a piston ring with an inclined opening 61, and more than two piston rings 6 are arranged between the upper ring 1 and the annular retainer ring 22;

the retainer 5 is provided with a plurality of square holes 51, the balls 3 and the rollers 4 are inserted and sleeved in the square holes 51, the retainer 5 is arranged between the upper ring 1 and the bottom plate 21, and grease is injected in a space formed by the annular retainer ring 22 and the bottom plate 21.

The diameter of the balls 3 and the rollers 4 are the same.

The square holes 51 are annularly arrayed on the retainer 5 by taking the circle center of the retainer 5 as the center, and the number of the square holes 51 is even; two adjacent square holes 51, wherein a ball 3 is inserted in one square hole, and a roller 4 is inserted in the other square hole 51.

The upper part of the annular retainer ring 22 is formed with a lower ring annular plate 23.

The working principle is as follows: the utility model discloses during the use, the load is fixed at the upper surface of last circle 1, and lower circle annular piece 23 passes through the fix with screw on the reference column. Because grease is enclosed between the upper ring 1 and the lower ring 2 by a plurality of piston rings 6, the grease is not easy to leak, and dust is not easy to enter between the upper ring 1 and the lower ring 2, thereby prolonging the service life of the product.

In the prior art, only balls are arranged between the upper ring and the lower ring, the utility model discloses accompany ball 3 and roller 4 between upper ring 1 and the lower ring 2, roller 4 is favorable to improving the bearing performance of upper ring 1.

The retainer 5 is made of stainless steel plate.

Claims

1. A plane thrust bearing, comprising an upper ring (1) and a lower ring (2), characterized in that: an upper ring square ring groove (11) is formed in the lower end face of the upper ring (1), a lower ring square ring groove (2a) is formed in the upper surface of a bottom plate (21) of the lower ring (2), the upper ring square ring groove (11) is opposite to the lower ring square ring groove (2a), and the ball (3) and the roller (4) are clamped in the upper ring square ring groove (11) and the lower ring square ring groove (2 a);

an annular retainer ring (22) is formed on a bottom plate (21) of the lower ring (2), a piston ring (6) is clamped in an upper ring piston ring groove (12) and a retainer ring piston ring groove (221), the piston ring (6) is a piston ring with an oblique opening (61), and at least more than two piston rings (6) are arranged between the upper ring (1) and the annular retainer ring (22);

a plurality of square holes (51) are formed in the retainer (5), the balls (3) and the rollers (4) are inserted in the square holes (51), the retainer (5) is arranged between the upper ring (1) and the bottom plate (21), and grease is injected into a space formed by the annular retainer ring (22) and the bottom plate (21).

2. A flat thrust bearing according to claim 1, wherein: the diameter of the ball (3) is the same as that of the roller (4).

3. A flat thrust bearing according to claim 1, wherein: the square holes (51) are annularly arrayed on the retainer (5) by taking the circle center of the retainer (5) as the center, and the number of the square holes (51) is even; two adjacent square holes (51), wherein one square hole is inserted with a ball (3), and the other square hole (51) is inserted with a roller (4).

4. A flat thrust bearing according to claim 1, wherein: the upper part of the annular retainer ring (22) is provided with a lower ring annular sheet (23).