CN218992339U

CN218992339U - Sealing device and agricultural machine

Info

Publication number: CN218992339U
Application number: CN202223606720.1U
Authority: CN
Inventors: 邓可; 叶烨; 邬碧云
Original assignee: Changsha Sanglaite Agricultural Mechanical Equipment Co Ltd
Current assignee: Changsha Sanglaite Agricultural Mechanical Equipment Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-09
Anticipated expiration: 2032-12-27

Abstract

The utility model provides a sealing device and agricultural machinery, wherein the sealing device comprises an oil seal, the oil seal comprises a first sealing unit and a second sealing unit which are arranged in parallel, and the first sealing unit and the second sealing unit are consistent in structure; the first sealing unit comprises a first inner ring and a first outer ring arranged on the first inner ring, and the first outer ring comprises a first framework and a first adhesive layer arranged on the first framework; the first inner ring comprises a second framework and a second adhesive layer arranged on the second framework. According to the sealing device with the structure, the two sealing units are arranged and comprise the two outer rings, the two outer rings share the inner ring, the joint surfaces of the inner ring and the outer ring are more, and when one sealing unit fails, the other sealing unit can work continuously. Compared with the sealing device with the existing structure, the sealing device has the advantages of simple structure, ingenious conception, good sealing effect, longer service life and lower use cost.

Description

Sealing device and agricultural machine

Technical Field

The utility model relates to the field of agricultural machinery, in particular to a sealing device and agricultural machinery.

Background

In recent years, with the continuous development of economy and technology, agricultural machines of various structures are increasingly used in agricultural production and life.

Sealing devices, such as oil seals, are commonly used in various agricultural machines, such as tractors and rotary tillers, and are used for preventing dust, muddy water and other impurities from entering the bearing and other parts. However, the sealing device with the existing structure generally has the problems of complex structure, poor sealing effect, short service life, high use cost and the like.

In summary, how to provide a sealing device with simple structure, good sealing effect, long service life and low use cost, and an agricultural machine comprising the sealing device, are technical problems to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to solve the technical problems that: the sealing device is simple in structure, good in sealing effect, long in service life and low in use cost, and the agricultural machine comprising the sealing device.

The solution of the utility model is realized as follows: the utility model provides a sealing device which is used for agricultural machinery and comprises an oil seal, wherein the oil seal comprises a first sealing unit and a second sealing unit which are arranged in parallel, and the first sealing unit and the second sealing unit are consistent in structure; the first sealing unit comprises a first inner ring and a first outer ring arranged on the first inner ring, and the first outer ring comprises a first framework and a first adhesive layer arranged on the first framework; the first inner ring comprises a second framework and a second adhesive layer arranged on the second framework. According to the sealing device with the structure, the two sealing units are arranged and comprise the two outer rings, the two outer rings share the inner ring, the joint surfaces of the inner ring and the outer ring are more, and when one sealing unit fails, the other sealing unit can work continuously. Compared with the sealing device with the existing structure, the sealing device has the advantages of simple structure, ingenious conception, good sealing effect, longer service life and lower use cost.

The other technical scheme of the utility model is that on the basis of the above, the second sealing unit comprises a second inner ring, and one end of the second inner ring is fixedly connected with one end of the first inner ring.

The other technical scheme of the utility model is that on the basis of the above, the second sealing unit comprises a second inner ring, and the first inner ring and the second inner ring are in an integrated structure.

The other technical scheme of the utility model is that on the basis of the above, springs are arranged in the first inner ring and the second inner ring.

The sealing device further comprises a bearing, wherein the bearing is arranged on one side of the first sealing unit, and one side of the bearing abuts against one side of the first sealing unit.

The sealing device further comprises an oil seal check ring, and the oil seal check ring is arranged between the first sealing unit and the bearing.

The sealing device comprises a bearing, an oil seal retainer ring, a sealing device and a plurality of connecting pieces, wherein the oil seal retainer ring is arranged on the side, away from the bearing, of the bearing; and a hole check ring is further arranged on the periphery of the gasket, and one side of the hole check ring is propped against the bearing.

In another aspect, the utility model also provides an agricultural machine comprising a shaft head and a sealing device arranged on the shaft head, wherein the sealing device is the sealing device.

The agricultural machine further comprises a bearing seat, wherein the bearing seat is provided with an inner cavity, a first outer ring and a second outer ring of the sealing device are arranged in the inner cavity, and a first inner ring and a second inner ring of the sealing device are sleeved on the shaft head.

The other technical scheme of the utility model is that on the basis of the above, one end of the bearing seat is provided with a detachable end cover, and the other end of the bearing seat is provided with a dustproof ring with a dustproof effect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic view of a part of the construction of an agricultural machine according to the present utility model;

fig. 2 is a schematic structural view of the sealing device of fig. 1.

The reference sign correspondence is:

1 first outer ring 101 first adhesive layer 102 first skeleton

2 first inner ring 201 second adhesive layer 202 second skeleton

Retainer ring for 3 spring 4 washer 5 holes

Second outer ring of 6-bearing 7-oil seal retainer ring 8

9 second inner race 10 bearing frame 11 dust ring

12 axle head 13 connecting piece 14 end cover

Detailed Description

The following detailed description of the utility model, taken in conjunction with the accompanying drawings, is given by way of illustration and explanation only, and should not be taken as limiting the scope of the utility model in any way. Furthermore, the features in the embodiments and in the different embodiments in this document can be combined accordingly by a person skilled in the art from the description of this document.

In the following, please refer to the partial structure of the agricultural machine shown in fig. 1, and the sealing device shown in fig. 2, for the sealing device, more specifically, the oil seal is included, the oil seal includes a first sealing unit and a second sealing unit which are arranged in parallel, and the first sealing unit and the second sealing unit are consistent in structure. The first sealing unit comprises a first inner ring 2 and a first outer ring 1 arranged on the first inner ring 2, and specifically comprises a first framework 102 and a first adhesive layer 101 arranged on the first framework 102 for the first outer ring 1. For the first inner ring 2, specifically, a second skeleton 202 and a second adhesive layer 201 disposed on the second skeleton 202 are included. For the first glue layer 101 and the second glue layer 201, in particular rubber layers. According to the sealing device with the structure, the two sealing units are arranged and comprise the two outer rings, the two outer rings share the inner ring, the joint surfaces of the inner ring and the outer ring are more, and when one sealing unit fails, the other sealing unit can work continuously. Compared with the sealing device with the existing structure, the sealing device has the advantages of simple structure, ingenious conception, good sealing effect, longer service life and lower use cost.

In another embodiment of the present utility model, as shown in fig. 2, the second sealing unit includes a second inner ring 9, and one end of the second inner ring 9 is fixedly connected with one end of the first inner ring 2, that is, the first outer ring 1 and the second outer ring 8 share one inner ring connected together, so that the structure is simpler.

In another embodiment of the present utility model, as shown in fig. 2, the second sealing unit includes a second inner ring 9, and the first inner ring 2 and the second inner ring 9 are in an integral structure, that is, are directly manufactured and formed at one time by casting or the like, so that the production and use costs are lower.

In another embodiment of the present utility model, as shown in fig. 2, the first inner ring 2 and the second inner ring 9 are further provided with springs 3, and the outer ring can be always attached to the inner ring by the springs 3.

In another embodiment of the present utility model, as shown in fig. 1, the sealing device further includes a bearing 6, where the bearing 6 is disposed on one side of the first sealing unit, and on the left side in the drawing, one side of the bearing 6, i.e., on the right side in the drawing, abuts against the left side of the first sealing unit.

In another embodiment of the present utility model, as shown in fig. 1, the sealing device further includes an oil seal retainer 7, where the oil seal retainer 7 is specifically disposed between the first sealing unit and the bearing 6.

On the basis of the above embodiment, in another embodiment of the present utility model, as shown in fig. 1, the sealing device further includes a gasket 4, the gasket 4 is disposed on a side of the bearing 6 facing away from the oil seal retainer 7, that is, on the left side in the drawing, a plurality of connecting pieces 13 for connection are further disposed on the gasket 4, and the connecting pieces 13 may be specifically bolts or the like. The periphery of the washer 4 is also provided with a hole retainer 5, one side of the hole retainer 5, i.e. the right side in the drawing, being held against the bearing 6.

On the other hand, on the basis of the above embodiment, the present utility model also proposes an agricultural machine, as shown in fig. 1, specifically comprising a shaft head 12 and a sealing device provided on the shaft head 12, specifically a sealing device as described above.

On the basis of the above embodiment, in another embodiment of the present utility model, as shown in fig. 1, the agricultural machine further includes a bearing seat 10, the bearing seat 10 is provided with an inner cavity, the first outer ring 1 and the second outer ring 8 of the sealing device are abutted against the inner cavity of the bearing seat 10, and the first inner ring 2 and the second inner ring 9 of the sealing device are sleeved on the shaft head 12.

On the basis of the above embodiment, in another embodiment of the present utility model, as shown in fig. 1, one end of the bearing housing 10, i.e., the left end in the drawing, is provided with a detachable end cover 14, and the other end of the bearing housing 10, i.e., the right end in the drawing, is provided with a dust-proof ring 11 for dust prevention.

The agricultural machine with the above structure has the advantages of the sealing device correspondingly.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The sealing device is used for agricultural machinery and is characterized by comprising an oil seal, wherein the oil seal comprises a first sealing unit and a second sealing unit which are arranged in parallel, and the first sealing unit and the second sealing unit are consistent in structure;

the first sealing unit comprises a first inner ring and a first outer ring arranged on the first inner ring, and the first outer ring comprises a first framework and a first adhesive layer arranged on the first framework;

the first inner ring comprises a second framework and a second adhesive layer arranged on the second framework.

2. The sealing device of claim 1, wherein the second sealing unit comprises a second inner ring having one end fixedly connected to one end of the first inner ring.

3. The sealing device of claim 1, wherein the second sealing unit comprises a second inner ring, the first inner ring and the second inner ring being of unitary construction.

4. A sealing arrangement according to claim 2 or 3, wherein springs are also provided in the first and second inner rings.

5. The sealing device of claim 4, further comprising a bearing disposed on one side of the first sealing unit, and wherein one side of the bearing abuts against one side of the first sealing unit.

6. The sealing device of claim 5, further comprising an oil seal retainer disposed between the first sealing unit and the bearing.

7. The sealing device according to claim 6, further comprising a gasket, wherein the gasket is arranged on one side of the bearing away from the oil seal retainer ring, and a plurality of connecting pieces for connecting are further arranged on the gasket;

and a hole check ring is further arranged on the periphery of the gasket, and one side of the hole check ring is propped against the bearing.

8. An agricultural machine comprising a head and a sealing device provided on the head, characterized in that the sealing device is a sealing device according to any one of claims 1 to 7.

9. The agricultural machine of claim 8, further comprising a housing having an inner cavity, wherein the first outer race and the second outer race of the sealing device are disposed within the inner cavity, and wherein the first inner race and the second inner race of the sealing device are sleeved on the stub shaft.

10. The agricultural machine of claim 9, wherein one end of the bearing housing is provided with a detachable end cap, and the other end of the bearing housing is provided with a dust ring for dust prevention.