CN104973156A - Sealing structure for supporting wheel - Google Patents
Sealing structure for supporting wheel Download PDFInfo
- Publication number
- CN104973156A CN104973156A CN201510381201.5A CN201510381201A CN104973156A CN 104973156 A CN104973156 A CN 104973156A CN 201510381201 A CN201510381201 A CN 201510381201A CN 104973156 A CN104973156 A CN 104973156A
- Authority
- CN
- China
- Prior art keywords
- guide
- wheel
- end cover
- thrust
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920001973 fluoroelastomer Polymers 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 150000002825 nitriles Chemical class 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004636 vulcanized rubber Substances 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000003306 harvesting Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The invention provides a sealing structure for a supporting wheel. The sealing structure is used for sealing of the supporting wheel of a harvester crawler. The sealing structure comprises a bolt (1), a shaft end check ring (2), a supporting sleeve (3), a supporting wheel shaft (4), a guide end cover (5), a guide wheel oil seal (6), a bearing (7) and the supporting wheel (8); the guide end cover (5) is composed of a round disk with a large external diameter and a round neck with a small external diameter which are in the same internal hole diameter, the guide end cover (5), the guide wheel oil seal (6) and the supporting sleeve (3) are coaxially arranged on the supporting wheel shaft (4), the round neck with the small external diameter of the guide end cover (5) is sleeved with the guide wheel oil seal (6), and one end of the supporting sleeve (3) is connected with the bottom of the round disk with the large external diameter of the guide end cover (5); the shaft end check ring (2) is fastened to the supporting wheel shaft (4) through the bolt (1); a layer of an elastic sealing ring is arranged on the internal hole wall of the guide end cover (5); the sealing structure for the supporting wheel is simple in structure, low in cost and good in sealing effect.
Description
Technical Field
The invention relates to a sealing structure, in particular to a sealing structure of a thrust wheel of a full-feeding harvester.
Background
The track thrust wheel is a key part of a walking mechanism of the track harvester and has the function of transmitting the weight of the harvester to the ground through the track and rolling on the track to prevent the track from transversely moving relative to the frame. Because of the harsh working environment, the thrust wheel works in muddy land for a long time, and the sealing property directly influences the use performance of the thrust wheel.
The sealing device for the thrust wheel of the existing crawler-type harvester comprises an end cover and a muddy water oil seal, wherein the end cover and the thrust wheel are fixedly connected during installation and are sealed through the muddy water oil seal. For example, chinese patent CN203142833U discloses a sealing device for a thrust wheel, which includes a sealing mechanism on the inner side of the thrust wheel and a sealing mechanism on the outer side of the thrust wheel. Because crawler-type harvester thrust wheel is when reaping, and operating condition is abominable, and muddy water passes through sealing device very easily and gets into in the thrust wheel bearing, and sealed effect is poor, leads to the bearing wearing and tearing fast, and life is short, and the fault rate of thrust wheel is higher, causes great economic loss in the season of reaping.
Therefore, how to solve the sealing problem of the thrust wheel of the harvester is a technical problem to be solved urgently.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention aims to: the utility model provides a sealing structure for the thrust wheel of the harvester, this structure makes and carries out multiple sealing to the thrust wheel, and when the harvester was reaping, muddy water was difficult for getting into in the thrust wheel bearing, has reduced the fault rate of thrust wheel.
In order to achieve the purpose, the invention adopts the following technical scheme:
one aspect of the invention provides a thrust wheel sealing structure for sealing a track thrust wheel of a harvester, which comprises a bolt, a shaft end retainer ring, a thrust shaft sleeve, a thrust shaft, a guide end cover, a guide wheel oil seal, a bearing and a thrust wheel; wherein,
the guide end cover consists of a large-outer-diameter disc and a small-outer-diameter round neck with the same inner bore diameter, the guide end cover, a guide wheel oil seal and a thrust shaft sleeve are coaxially arranged on the thrust wheel shaft, the guide wheel oil seal is sleeved on the small-outer-diameter round neck of the guide end cover, and one end of the thrust shaft sleeve is connected with the bottom of the large-outer-diameter disc of the guide end cover; the shaft end check ring is fastened on the thrust wheel shaft through a bolt; and the number of the first and second groups,
and an elastic sealing ring is arranged on the inner hole wall of the guide end cover.
Further preferably, the material of the elastic sealing ring is one or more rubber materials selected from silicone rubber, fluororubber and nitrile vulcanized rubber.
Further preferably, the guide wheel oil seal is annular elastic sealing material, and six layers of sealing are formed by arranging two main lips, two auxiliary lips and two annular bulges from inside to outside. During assembly, the axial clearance between the guide end cover and the guide wheel oil seal is not more than 2mm, and the two annular bulges are flattened to ensure that the two main lips arranged on the guide wheel oil seal abut against the guide end cover large-outer-diameter disc.
Further preferably, the material of the guide end cap is any one or more rigid materials selected from aluminum, aluminum alloy, copper and iron.
Further preferably, the guide wheel oil seal is filled with lubricating oil before assembly.
By adopting the technical scheme, compared with the prior art, the invention has the following technical effects:
the thrust wheel sealing structure provided by the invention is used for carrying out multiple sealing on the thrust wheel, when a harvester is used for harvesting, muddy water is not easy to enter a thrust wheel bearing, and the fault rate of the thrust wheel is reduced; meanwhile, the axial clearance between the guide end cover and the guide wheel oil seal is controlled through the tightening degree of the bolts, so that high sealing is ensured; and simple structure, low cost, sealed effectual.
Drawings
Fig. 1 is a sectional view of a seal structure of a thrust wheel according to the present invention;
FIG. 2 is an axial rotation diagram of a thrust wheel shaft, a guide end cover, a guide wheel oil seal and a bearing in the thrust wheel sealing structure according to the present invention;
FIG. 3 is a cross-sectional view of a guide wheel oil seal in a thrust wheel seal structure according to the present invention;
FIG. 4 is a cross-sectional view of a guide end cap in a thrust wheel seal arrangement according to the present invention;
fig. 5 is a schematic structural view of a thrust wheel shaft in the thrust wheel sealing structure according to the present invention;
in the figure, the position of the upper end of the main shaft,
1-a bolt, wherein the bolt is arranged on the bolt,
2-a retainer ring at the end of the shaft,
3-a sleeve of a thrust shaft,
4-a bearing wheel shaft is arranged at the front end of the bearing wheel,
5-a guide end cover, 51-an elastic sealing ring,
6-guide wheel oil seal, 61, 62-main lip, 63, 64-auxiliary lip, 65, 66-annular projection,
7-a bearing is arranged on the bearing,
8-thrust wheel.
Detailed Description
The present invention will be described in detail and specifically with reference to the following examples to facilitate better understanding of the present invention, but the following examples do not limit the scope of the present invention.
As shown in fig. 1 to 5, the present embodiment provides a thrust wheel sealing structure, which is used for sealing a full-feeding harvester crawler thrust wheel, and the sealing structure includes a bolt 1, a shaft end retainer 2, a thrust shaft sleeve 3, a thrust shaft 4, a guide end cover 5, a guide wheel oil seal 6, a bearing 7, and a thrust wheel 8; the guide end cover 5 consists of a large-outer-diameter disc and a small-outer-diameter round neck with the same inner bore diameter, the guide end cover 5, a guide wheel oil seal 6 and a thrust shaft sleeve 3 are axially arranged on a thrust wheel shaft 4, the guide wheel oil seal 6 is sleeved on the small-outer-diameter round neck of the guide end cover 5, and one end of the thrust shaft sleeve 3 is connected with the bottom of the large-outer-diameter disc of the guide end cover 5; the shaft end retainer ring 2 is fastened on the thrust wheel shaft 4 through a bolt 1; and a layer of elastic sealing ring 51 is arranged on the inner hole wall of the guide end cover 5, and the material of the elastic sealing ring 51 is any one or more rubber materials selected from silicon rubber, fluororubber and nitrile vulcanized rubber. The material of the guide end cover 5 is any one or more rigid materials selected from aluminum, aluminum alloy, copper and iron. By controlling the tolerance fit of the size M of the bogie shaft 4 and the guide end cover 5 and adding the elastic sealing ring 51 on the inner side of the guide end cover 5, the sealing performance of the guide end cover 5 and the bogie shaft 4 is ensured.
The guide wheel oil seal 6 is an annular elastic sealing material, and is provided with six layers of sealing including two main lips 61 and 62, two auxiliary lips 63 and 64 and two annular bulges 65 and 66 from inside to outside. During assembly, the axial clearance X between the guide end cover 5 and the guide wheel oil seal 6 is controlled not to exceed 2mm through the bolt 1 and the shaft end retainer ring 2, so that two annular bulges 65 and 66 of the guide wheel oil seal 6 are flattened, and the sealing performance of the guide wheel oil seal and the guide end cover 5 is ensured. The guide wheel oil seal 6 is injected with lubricating oil before assembly as necessary. In addition, the tolerance fit of the outer diameter H size of the small outer diameter round neck of the guide end cover 5 is controlled through part requirements, two main lips 61 and 62 arranged on the guide wheel oil seal 6 are guaranteed to abut against the small outer diameter round neck of the guide end cover 5, and a good sealing effect is achieved.
The thrust wheel sealing structure provided by the invention is used for carrying out multiple sealing on the thrust wheel, when a harvester is used for harvesting, muddy water is not easy to enter a thrust wheel bearing, and the fault rate of the thrust wheel is reduced; meanwhile, the axial clearance between the guide end cover 5 and the guide wheel oil seal 6 is controlled through the tightening degree of the bolt 1, so that high sealing is ensured; and simple structure, low cost, sealed effectual.
The embodiments of the present invention have been described in detail, but the embodiments are merely examples, and the present invention is not limited to the embodiments described above. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.
Claims (5)
1. A thrust wheel sealing structure is used for sealing a track thrust wheel of a harvester and is characterized by comprising a bolt (1), a shaft end retainer ring (2), a thrust shaft sleeve (3), a thrust shaft (4), a guide end cover (5), a guide wheel oil seal (6), a bearing (7) and a thrust wheel (8); wherein,
the guide end cover (5) consists of a large-outer-diameter disc and a small-outer-diameter round neck with the same inner aperture, the guide end cover (5), a guide wheel oil seal (6) and a thrust shaft sleeve (3) are coaxially arranged on the thrust wheel shaft (4), the guide wheel oil seal (6) is sleeved on the small-outer-diameter round neck of the guide end cover (5), and one end of the thrust shaft sleeve (3) is connected with the bottom of the large-outer-diameter disc of the guide end cover (5); the shaft end retainer ring (2) is fastened on the thrust wheel shaft (4) through a bolt (1); and the number of the first and second groups,
an elastic sealing ring (51) is arranged on the inner hole wall of the guide end cover (5).
2. The thrust wheel seal structure according to claim 1, wherein the elastic seal ring (51) is made of one or more rubber materials selected from silicone rubber, fluororubber, and nitrile vulcanized rubber.
3. The seal structure of a track roller according to claim 1, wherein the guide wheel oil seal (6) is an annular elastic sealing material, and has six layers of seals, from the inside to the outside, of two main lips (61, 62), two auxiliary lips (63, 64), and two annular protrusions (65, 66).
4. The bogie wheel seal arrangement according to claim 1, wherein the axial clearance between the guide end cap (5) and the guide wheel oil seal (6) is no more than 2 mm.
5. The thrust wheel seal structure according to claim 1, wherein the material of the guide end cover (5) is one or more rigid materials selected from aluminum, aluminum alloy, copper and iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381201.5A CN104973156A (en) | 2015-07-02 | 2015-07-02 | Sealing structure for supporting wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510381201.5A CN104973156A (en) | 2015-07-02 | 2015-07-02 | Sealing structure for supporting wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104973156A true CN104973156A (en) | 2015-10-14 |
Family
ID=54270245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510381201.5A Pending CN104973156A (en) | 2015-07-02 | 2015-07-02 | Sealing structure for supporting wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104973156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10843749B2 (en) | 2018-04-20 | 2020-11-24 | L&H Industrial, Inc. | Straddle mount idler assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695102A (en) * | 1984-11-30 | 1987-09-22 | Societa' Italtractor Meccanica Itm S.P.A. | Lubricated roller for the tracks of crawler vehicles, in particular, a top roller with fixed overhung shaft and rolling bearings |
| JPH09226643A (en) * | 1996-02-23 | 1997-09-02 | Komatsu Zenoah Co | Lower rolling wheel with muddy water seal |
| CN201737069U (en) * | 2010-07-15 | 2011-02-09 | 江苏沃得农业机械有限公司 | Sealing device for supporting wheel |
| CN202193136U (en) * | 2011-08-30 | 2012-04-18 | 湖南中天龙舟农机有限公司 | Supporting wheel or guide wheel with combined type mud water sealing structure |
| CN202703733U (en) * | 2012-08-13 | 2013-01-30 | 福田雷沃国际重工股份有限公司 | Crawler travelling device for combine-harvester |
| CN202901007U (en) * | 2012-10-22 | 2013-04-24 | 魏善雷 | Bearing and thrust wheel and guide wheel for crawler-type combined harvester containing bearing |
| CN203142833U (en) * | 2013-01-14 | 2013-08-21 | 江苏沃得农业机械有限公司 | Thrust wheel sealing device |
| CN205022727U (en) * | 2015-07-02 | 2016-02-10 | 江苏江淮动力股份有限公司 | Thrust wheel seal structure |
-
2015
- 2015-07-02 CN CN201510381201.5A patent/CN104973156A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4695102A (en) * | 1984-11-30 | 1987-09-22 | Societa' Italtractor Meccanica Itm S.P.A. | Lubricated roller for the tracks of crawler vehicles, in particular, a top roller with fixed overhung shaft and rolling bearings |
| JPH09226643A (en) * | 1996-02-23 | 1997-09-02 | Komatsu Zenoah Co | Lower rolling wheel with muddy water seal |
| CN201737069U (en) * | 2010-07-15 | 2011-02-09 | 江苏沃得农业机械有限公司 | Sealing device for supporting wheel |
| CN202193136U (en) * | 2011-08-30 | 2012-04-18 | 湖南中天龙舟农机有限公司 | Supporting wheel or guide wheel with combined type mud water sealing structure |
| CN202703733U (en) * | 2012-08-13 | 2013-01-30 | 福田雷沃国际重工股份有限公司 | Crawler travelling device for combine-harvester |
| CN202901007U (en) * | 2012-10-22 | 2013-04-24 | 魏善雷 | Bearing and thrust wheel and guide wheel for crawler-type combined harvester containing bearing |
| CN203142833U (en) * | 2013-01-14 | 2013-08-21 | 江苏沃得农业机械有限公司 | Thrust wheel sealing device |
| CN205022727U (en) * | 2015-07-02 | 2016-02-10 | 江苏江淮动力股份有限公司 | Thrust wheel seal structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10843749B2 (en) | 2018-04-20 | 2020-11-24 | L&H Industrial, Inc. | Straddle mount idler assembly |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
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| RJ01 | Rejection of invention patent application after publication |