CN211778582U - A long-life maintenance-free plowing locomotive bearing unit - Google Patents

Abstract

The utility model discloses a long-life maintenance-free plowing locomotive on-board bearing unit, which relates to the field of bearings and comprises a bearing outer ring. The bearing outer ring is provided with a bearing inner ring, and the bearing outer ring is suitable for the bearing inner ring. The inner wall of the outer ring of the bearing is provided with a ball lower groove. In the utility model, since the sealing dustproof ring is provided, the sealing dustproof ring seals the plurality of balls between the outer ring of the bearing and the inner ring of the bearing, which prevents dust from entering the interior, has a long service life, and does not require frequent maintenance. When fixing the sealing dust ring, put the sealing dust ring into the annular outer ring groove and the annular inner ring groove and fix it by fixing studs, which is convenient for early installation and later disassembly. When it is necessary to add lubricating oil, pull it. The block can leak out of the injection hole, which can be lubricated, and then loosen the pull block to make the annular stopper return to its original state and seal the injection hole to ensure the tightness.

Description

A long-life maintenance-free plowing locomotive bearing unit

technical field

The utility model relates to the technical field of bearings, in particular to a bearing.

Background technique

Bearing is an important part of contemporary mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. The early linear motion bearing form is in a row of skids. A row of wooden rods is placed under it. Modern linear motion bearings use the same working principle, except that balls are sometimes used instead of rollers. The simplest rotary bearing is the bush bearing, which is just a bushing sandwiched between the wheel and the axle. Sleeves, a design that was subsequently replaced by rolling bearings, replaced the original bushings with many cylindrical rollers, each like a separate wheel.

The existing bearings are relatively simple and generally do not have a sealing and dustproof ring. During the long-term operation of the plowing locomotive, dust easily enters the inside of the bearing, which affects the service life of the bearing and requires frequent maintenance. Long-life maintenance-free plowing locomotives use bearing units to meet people's needs.

Utility model content

The purpose of the present utility model is to provide a long-life maintenance-free bearing unit on a ploughing locomotive, so as to solve the problem that the existing bearing proposed in the above-mentioned background technology is relatively simple, and generally does not have a sealing and dust-proof ring. During long-term work, dust easily enters the inside of the bearing, which affects the service life of the bearing and requires frequent maintenance.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a long-life maintenance-free bearing unit for a ploughing locomotive, comprising a bearing outer ring, the bearing outer ring is provided with a bearing inner ring, and the bearing outer ring and the bearing inner ring are provided. The inner wall of the bearing outer ring is provided with a ball lower groove, and the inner ring of the bearing is provided with a ball upper groove, and a plurality of balls are rotatably installed in the ball upper groove and the ball lower groove. Equipped with the same ball cage, the inner wall of the bearing outer ring has two spherical grooves based on ball symmetry, and the inner ring of the bearing is provided with two spherical grooves based on ball symmetry. The same sealing dust ring is movably installed in the groove of the annular outer ring.

Preferably, an injection hole is provided on one side of the sealing and dustproof ring, an arc-shaped chute is provided on the inner wall of one side of the injection hole, an annular block is slidably installed in the arc-shaped chute, and one side of the annular block extends to the outside of the arc chute and in contact with the inner wall of the injection hole.

Preferably, a pull block is fixedly installed on one side of the annular block, and the pull block is located in the injection hole.

Preferably, one end of the return spring is fixedly installed on one side of the annular block, and the other end of the return spring is fixedly installed on the inner wall of one side of the arc-shaped chute.

Preferably, one side of the sealing dust ring is provided with two rotating holes, fixed studs are rotatably installed in the two rotating holes, and both ends of the fixed studs extend outside the rotating holes.

Preferably, one side of the ball cage is provided with two threaded grooves, the two threaded grooves are respectively arranged corresponding to the two rotating holes, and the ends of the two fixing studs away from the pentagonal nut extend to the two threaded grooves respectively Inside.

Preferably, a pentagonal nut is provided on the side of the sealing dust ring away from the ball cage, the pentagonal nut is in contact with one side of the sealing dustproof ring, and the end of the fixing stud away from the ball cage is fixedly installed on the pentagonal nut. on the side of the cap.

The beneficial effects of the present utility model are:

In the utility model, since the sealing dustproof ring is arranged, the sealing dustproof ring seals the plurality of balls between the bearing outer ring and the bearing inner ring, so as to prevent dust from entering the interior, the service life is long, and frequent maintenance is not required;

In the utility model, when the sealing dust ring needs to be fixed, the sealing dust ring is put into the annular outer ring groove and the annular inner ring groove and fixed by fixing studs, which is convenient for early installation and later disassembly. When lubricating oil, pull the pull block to leak out the injection hole and lubricate, and then loosen the pull block to make the annular block return to its original state and seal the injection hole to ensure tightness.

Description of drawings

Fig. 1 is the three-dimensional structural representation of the bearing unit on a kind of long-life maintenance-free ploughing locomotive proposed by the utility model;

FIG. 2 is a schematic structural diagram of part A in FIG. 1 of a bearing unit on a long-life maintenance-free ploughing locomotive proposed by the utility model;

Fig. 3 is a top-view structural schematic diagram of a bearing unit on a long-life maintenance-free ploughing locomotive proposed by the utility model;

4 is a schematic structural diagram of part B in FIG. 3 of a bearing unit on a long-life maintenance-free ploughing locomotive proposed by the utility model;

FIG. 5 is a schematic structural diagram of a side view of a bearing unit on a long-life maintenance-free ploughing locomotive proposed by the utility model.

In the figure: 1. Bearing outer ring; 2. Bearing inner ring; 3. Groove on ball; 4. Ball; 5. Ball cage; 6. Ring groove; 7. Sealing dust ring; 8. Rotating hole ;9, fixed stud; 10, pentagonal nut; 11, thread groove; 12, injection hole; 13, arc chute; 14, annular stop; 15, pull block; 16, return spring; groove; 18, annular outer ring groove.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Referring to Figures 1-5, a long-life maintenance-free bearing unit for a ploughing locomotive includes a bearing outer ring 1, and the bearing outer ring 1 is provided with a bearing inner ring 2, and the bearing outer ring 1 is in phase with the bearing inner ring 2. The inner wall of the bearing outer ring 1 is provided with a ball lower groove 17, the bearing inner ring 2 is provided with a ball upper groove 3, and a plurality of balls 4 are rotatably installed in the ball upper groove 3 and the ball lower groove 17. , a plurality of balls 4 are provided with the same ball cage 5, the inner wall of the bearing outer ring 1 is provided with two symmetrical annular grooves 18 based on the balls 4, and the inner ring 2 of the bearing is provided with two symmetrical annular grooves 18 based on the balls 4 The inner ring groove 6, the annular inner ring groove 6 and the annular outer ring groove 18 on the same side are movably installed with the same sealing dustproof ring 7, because the sealing dustproof ring 7 is provided, the sealing dustproof ring 7 removes multiple balls. 4 It is sealed between the bearing outer ring 1 and the bearing inner ring 2, which prevents dust from entering the interior, has a long service life, and does not require frequent maintenance.

In the present invention, an injection hole 12 is formed on one side of the sealing and dustproof ring 7, an arc-shaped chute 13 is opened on the inner wall of one side of the injection hole 12, and an annular block 14 is slidably installed in the arc-shaped chute 13. One side of the annular block 14 extends to the outside of the arc-shaped chute 13 and is in contact with the inner wall of the injection hole 12 , through the setting of the injection hole 12 , lubricating oil can be injected.

In the present invention, a pull block 15 is fixedly installed on one side of the annular block 14 , the pull block 15 is located in the injection hole 12 , and the injection hole 12 is easily opened by the setting of the pull block 15 .

In the present invention, one end of the return spring 16 is fixedly installed on one side of the annular block 14, and the other end of the return spring 16 is fixedly installed on the inner wall of one side of the arc-shaped chute 13. After adding lubricating oil, loosen the The pull block 15 is opened, and under the reaction force of the return spring 16 , the annular block 14 is restored to its original state and continues to seal the injection hole 12 .

In the present invention, two rotating holes 8 are opened on one side of the sealing and dustproof ring 7, and fixed studs 9 are rotatably installed in the two rotating holes 8, and both ends of the fixed studs 9 extend to the rotating holes. 8, the sealing dust ring 7 and the ball cage 5 can be connected through the fixing stud 9.

In the present invention, one side of the ball cage 5 is provided with two threaded grooves 11 , the two threaded grooves 11 are respectively set corresponding to the two rotating holes 8 , and the two fixed studs 9 are far away from the pentagonal nut 10 . One end extends into the two threaded grooves 11 respectively, and the sealing and dustproof ring 7 can be fixed by the arrangement of the threaded grooves 11 and the rotating hole 8 .

In the present invention, the side of the sealing dust ring 7 away from the ball cage 5 is provided with a pentagonal nut 10, and the pentagonal nut 10 is in contact with one side of the sealing dust ring 7, and the fixed stud 9 is kept away from the ball. One end of the frame 5 is fixedly installed on one side of the pentagon nut 10 , and the fixing stud 9 can be installed in the threaded groove 11 by rotating the pentagon nut 10 .

This practical working principle:

When the sealing dust ring 7 needs to be fixed, the sealing dust ring 7 is put into the annular outer ring groove 18 and the annular inner ring groove 6, and then the two rotating holes 8 on the sealing dust ring 7 are aligned with the ball cage 5 respectively. the two threaded grooves 11 on the upper part of the screw, then pass the fixed stud 9 through the rotating hole 8, turn the pentagon nut 10 to drive the fixed stud 9 to rotate, and the fixed stud 9 rotates into the threaded groove 11. When the side is in contact with one side of the sealing dust ring 7, the position of the sealing dust ring 7 and the ball cage 5 is fixed. During use, the sealing dust ring 7 seals the plurality of balls 4 outside the bearing. Between the ring 1 and the inner ring 2 of the bearing, dust is prevented from entering the inside, the service life is long, and frequent maintenance is not required. When adding lubricating oil, just pull the pull block 15, and the pull block 15 moves to drive the annular block 14 to inject The hole 12 and the arc-shaped chute 13 slide, and the annular block 14 moves to elastically deform the return spring 16. After the injection hole 12 is opened, lubricating oil can be added to the bearing outer ring 1 and the bearing inner ring 2. After the addition is completed , Release the pull block 15 , and under the reaction force of the return spring 16 , the annular block 14 is restored to its original state and continues to seal the injection hole 12 .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. The utility model provides a long-life non-maintaining plough is last with bearing unit, includes bearing inner race (1), its characterized in that: be equipped with bearing inner race (2) in bearing outer lane (1), bearing outer lane (1) and bearing inner race (2) looks adaptation, ball low groove (17) have been seted up on the inner wall of bearing outer lane (1), ball upper groove (3) have been seted up on bearing inner race (2), a plurality of balls (4) are installed to ball upper groove (3) and ball low groove (17) internal rotation, be equipped with same ball holder (5) on a plurality of balls (4), two annular outer race grooves (18) based on ball (4) symmetry on the inner wall of bearing outer lane (1), two annular inner race grooves (6) based on ball (4) symmetry have been seted up on bearing inner lane (2), it has same sealed dust ring (7) to lie in annular inner race groove (6) and annular outer race groove (18) movable mounting with one side.

2. The bearing unit for a long life maintenance-free plowing locomotive according to claim 1, wherein: one side of the sealed dust ring (7) is provided with an injection hole (12), an arc-shaped sliding groove (13) is formed in the inner wall of one side of the injection hole (12), an annular stop block (14) is arranged in the arc-shaped sliding groove (13) in a sliding mode, and one side of the annular stop block (14) extends out of the arc-shaped sliding groove (13) and is in contact with the inner wall of the injection hole (12).

3. The bearing unit for a long life maintenance-free plowing locomotive according to claim 2, wherein: one side of the annular stop block (14) is fixedly provided with a pull block (15), and the pull block (15) is positioned in the injection hole (12).

4. The bearing unit for a long life maintenance-free plowing locomotive according to claim 2, wherein: one side of the annular stop block (14) is fixedly provided with one end of a return spring (16), and the other end of the return spring (16) is fixedly arranged on the inner wall of one side of the arc-shaped sliding groove (13).

5. The bearing unit for a long life maintenance-free plowing locomotive according to claim 1, wherein: two rotating holes (8) are formed in one side of the sealed dustproof ring (7), fixing studs (9) are installed in the two rotating holes (8) in a rotating mode, and two ends of each fixing stud (9) extend out of the corresponding rotating hole (8).

6. The bearing unit for a long life maintenance-free plowing locomotive according to claim 1, wherein: two thread grooves (11) are formed in one side of the ball retainer (5), the two thread grooves (11) are respectively arranged corresponding to the two rotating holes (8), and one ends, far away from the pentagonal nuts (10), of the two fixing studs (9) respectively extend into the two thread grooves (11).

7. The bearing unit for a long life maintenance-free plowing locomotive according to claim 1, wherein: one side of the sealing dust ring (7) far away from the ball retainer (5) is provided with a pentagonal nut (10), the pentagonal nut (10) is in contact with one side of the sealing dust ring (7), and one end of the fixing stud (9) far away from the ball retainer (5) is fixedly arranged on one side of the pentagonal nut (10).

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