CN202358213U - Sealing structure of novel track roller - Google Patents
Sealing structure of novel track roller Download PDFInfo
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- CN202358213U CN202358213U CN2011205079331U CN201120507933U CN202358213U CN 202358213 U CN202358213 U CN 202358213U CN 2011205079331 U CN2011205079331 U CN 2011205079331U CN 201120507933 U CN201120507933 U CN 201120507933U CN 202358213 U CN202358213 U CN 202358213U
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- end cap
- protrusion
- hermetically
- wheel
- sealed construction
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Abstract
The utility model discloses a sealing structure of a novel track roller. The sealing structure of the novel track roller comprises a roller body (1), an axle (2), a left-end cover (3), a right-end cover (4), a bushing (5) and a floating oil seal (6), wherein a central hole (11), close to the end surface of the right side of the roller body (1), is provided with a circular right step structure (12), and one side of the right-end cover (4) towards the roller body (1) is provided with a projecting part (41); the projecting part (41) is provided with an annular radial protrusion structure (42), and extends into the right end of the central hole (11), and the annular radial protrusion structure (42) is in clearance fit with the right step structure (12); and a first sealing structure is arranged between a left step structure and an annular radial protrusion structure (41) on a projecting part of the left-end cover (3), and a second sealing structure is arranged between the right step structure (12) and the annular radial protrusion structure (42) on the projecting part (41) of the right-end cover (4).The sealing structure of the novel track roller has the beneficial effects that: sediment can be effectively prevented from entering a clearance between the roller body and the end cover, and the premature failure of the floating oil seal is avoided, thereby the failure rate of oil leakage of the floating oil seal is reduced, the difficulty of processing is smaller, and the implementation is easy.
Description
Technical field
The utility model relates to a kind of caterpillar wheel structure of caterpillar machinery, especially a kind of hermetically-sealed construction of novel caterpillar wheel.
Background technology
Caterpillar chassis has good crossing ability and to the adaptive capacity of various landform, therefore is widely used in self-propelled construction machinery and equipment.
Known caterpillar chassis is general main to be made up of parts such as crawler belt, drive wheel, guide wheel and caterpillar wheels; Wherein caterpillar wheel is as the load bearing component of caterpillar chassis; Under the harsh environmental conditions of being everlasting, as working in muddy water, the dust, and bear shar pounding, the non-constant of service conditions.This makes that the Seal Design of caterpillar wheel is particularly important.Existing caterpillar chassis caterpillar wheel is as shown in Figure 1, is made up of wheel body 1, wheel shaft 2, left end cap 3, right end cap 4, lining 5, float grease seal 6, O type circle 7, locating dowel pin 8 etc.Left end cap 3, right end cap 4 link to each other with vehicle frame; Fixed; Wheel body 1 cooperates with the crawler belt rail level, rolls along the crawler belt rail level, so require to relatively rotate between wheel body 1 and left end cap 3, the right end cap 4; Promptly certain interval must be arranged, this makes that the seal form that adopts between wheel body and the end cap is main with this dynamic seal of float grease seal.This is the seal form of main seal means with float grease seal; The gap of wheel body and left and right sides end cap is main with the linear pattern gap, and when main frame was worked in harsies environment such as silt, silt was easy to through the linear pattern gap; Get in the caterpillar wheel; Rubber o-ring in the float grease seal is stuck, make O type circle not carry out elastic deformation freely, cause the float grease seal leakage of oil.
Improved products is as shown in Figure 2 subsequently; Gap between wheel body 1 and left end cap, the right end cap 4 is changed into labyrinth type through the boss structure of being located on wheel body 1 and left end cap, the right end cap 49 by original linear pattern; Though can improving silt, this form gets between wheel body 1 and left end cap, the right end cap 4; But very inconvenience of boss structure 9 processing, and make manufacturing cost increase.Because connection structure is identical between left end cap and the right end cap, so Fig. 2 has only provided the connection structure between wheel body 1 and the right end cap.
Summary of the invention
To the problems referred to above that existing caterpillar wheel exists, the utility model provides a kind of hermetically-sealed construction that is intended to improve sealing effectiveness and does not increase the novel caterpillar wheel of difficulty of processing.
The technological means that the utility model technical solution problem is adopted is:
A kind of novel caterpillar wheel hermetically-sealed construction; Comprise wheel body 1, wheel shaft 2, left end cap 3, right end cap 4, lining 5, float grease seal 6; Said wheel body 1 has the centre hole 11 that runs through two ends; Said centre hole 11 is enclosed within on the said wheel shaft 2 through said lining 5, and said wheel shaft 2 stretches out said wheel body 1 by said centre hole 11 two ends, said left end cap 3 and right end cap 4 cover said wheel shaft 2 stretch out said wheel body 1 about two ends; Be provided with float grease seal 6 between said wheel body 1 and the said left end cap 3, be provided with float grease seal 6 between said wheel body 1 and the said right end cap 4;
Said centre hole 11 nearly said wheel bodys 1 left end face place is provided with circular left ledge structure; Said left end cap 3 is provided with protrusion towards said wheel body 1 one sides; Said protrusion is provided with ring-type radial protrusion structure; Said protrusion stretches into said centre hole 11 left ends, and said ring-type radial protrusion structure and said left ledge structure form the gap coupling;
Said centre hole 11 nearly said wheel bodys 1 its right end face place is provided with circular right ledge structure 12; Said right end cap 4 is provided with protrusion 41 towards said wheel body 1 one sides; Said protrusion 41 is provided with ring-type radial protrusion structure 42; Said protrusion 41 stretches into said centre hole 11 right-hand members, said ring-type radial protrusion structure 42 and said right ledge structure 12 formation gaps coupling;
Wherein, be provided with first hermetically-sealed construction between the ring-type radial protrusion structure on the protrusion of said left ledge structure and said left end cap 3; Be provided with second hermetically-sealed construction between the ring-type radial protrusion structure 42 on the protrusion 41 of said right ledge structure 12 and said right end cap 4.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said first hermetically-sealed construction is first annular recess of being located on the said left ledge structure inwall and first seal ring of being located in said first annular recess.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said second hermetically-sealed construction is second annular recess of being located on said right ledge structure 12 inwalls and second seal ring of being located in said second annular recess.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said first annular recess is located on the said left ledge structure inner radial wall.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said first annular recess is located on the axial inwall of said left ledge structure.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said first annular recess is located on the radial outer wall of the ring-type radial protrusion structure on the protrusion of said left end cap 3.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said first annular recess is located at the axial outer wall right side of the ring-type radial protrusion structure on the protrusion of said left end cap 3.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said second annular recess is located on said right ledge structure 12 inner radial wall.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said second annular recess is located on the said right ledge structure 12 axial inwalls.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said second annular recess is located on the radial outer wall of the ring-type radial protrusion structure 42 on the protrusion 41 of said right end cap 4.
Above-mentioned novel caterpillar wheel hermetically-sealed construction, wherein, said second annular recess is located at the axial outer wall left side of the ring-type radial protrusion structure 42 on the protrusion 41 of said right end cap 4.
The beneficial effect of the utility model is:
Can stop intrusion wheel body and end cover clearance such as silt effectively, avoid the float grease seal premature failure, thereby reduce floating leak sealing oil fault rate, and difficulty of processing is less, is easy to realize.
Description of drawings
Fig. 1 is existing caterpillar wheel longitudinal profile structural representation;
Fig. 2 is existing a kind of improved caterpillar wheel longitudinal profile structure partial enlarged diagram;
Fig. 3 is the longitudinal profile structural representation of first kind of embodiment of the hermetically-sealed construction of a kind of novel caterpillar wheel of the utility model;
Fig. 4 is the longitudinal profile structure partial enlarged diagram of second kind of embodiment of the hermetically-sealed construction of a kind of novel caterpillar wheel of the utility model;
Fig. 5 is the longitudinal profile structure partial enlarged diagram of the third embodiment of the hermetically-sealed construction of a kind of novel caterpillar wheel of the utility model;
Fig. 6 is the longitudinal profile structure partial enlarged diagram of the 4th kind of embodiment of the hermetically-sealed construction of a kind of novel caterpillar wheel of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further, but not as the qualification of the utility model.
As shown in Figure 3; A kind of novel caterpillar wheel hermetically-sealed construction of the utility model comprises wheel body 1, wheel shaft 2, left end cap 3, right end cap 4, lining 5, float grease seal 6, and wheel body 1 has the centre hole 11 that runs through two ends, and centre hole 11 is enclosed within on the said wheel shaft 2 through lining 5; Wheel shaft 2 stretches out wheel body 1 by centre hole 11 two ends; Left end cap 3 and right end cap 4 cover wheel shafts 2 stretch out wheel body 1 about two ends, be provided with float grease seal 6 between wheel body 1 and the left end cap 3, be provided with float grease seal 6 between wheel body 1 and the right end cap 4;
Because left end cap 3 is identical with the connection structure and the connection mode of wheel body 1 with right end cap 4, only provide the connection structure of right end cap 4 and wheel body 1 among Fig. 3, also expression in this way among Fig. 4, Fig. 5 and Fig. 6.
Wherein, be provided with first hermetically-sealed construction (not marking in the drawings) between the ring-type radial protrusion structure on the protrusion of said left ledge structure and left end cap 3; Be provided with second hermetically-sealed construction 90 between the ring-type radial protrusion structure 42 on the protrusion 41 of right ledge structure 12 and right end cap 4.Because first hermetically-sealed construction is identical with second hermetically-sealed construction 90, so only provides second hermetically-sealed construction 90 on Fig. 3, also expression in this way among Fig. 4, Fig. 5 and Fig. 6.
Wherein first hermetically-sealed construction is first annular recess of being located on the said left ledge structure inwall and first seal ring of being located in first annular recess, and second hermetically-sealed construction 90 is for being located at second annular recess 91 and second seal ring of being located in second annular recess 91 92 on right ledge structure 12 inwalls.
First groove and second groove 91 have certain degree of depth and width, and certain intensity and resistance to abrasion are arranged simultaneously.First seal ring and second seal ring 92 are installed respectively in first groove and second groove 91, and after assembling was accomplished, making between wheel body 1 and left end cap 3 and the right end cap 4 had certain clearance, to adapt to the end float misalignment of caterpillar wheel when working.Simultaneously; First seal ring and second seal ring, 92 stress and deformations; Make the gap between wheel body 1 and left end cap 3 and the right end cap 4 be filled and form hermetically-sealed construction; First seal ring and second seal ring 92 have certain elasticity, can be after gauge wears take place in the lining of caterpillar wheel 5, and first seal ring and second seal ring 92 can fit all the time wheel body 1 and left end cap 3 and right end cap 4 (allowing minim gap behind the severe wear); Seal, make silt be difficult for getting into the gap between wheel body 1 and left end cap 3 and the right end cap 4.
Further, first annular recess is located on the left ledge structure inner radial wall, and second annular recess 91 is located on the inner radial wall of right ledge structure 12.Because the coupling of the ring-type radial protrusion structure interval on the protrusion of left ledge structure and left end cap 3; Ring-type radial protrusion structure 42 gaps coupling on the protrusion 41 of right ledge structure 12 and right end cap 4; Diameter clearance between the ring-type radial protrusion structure 42 on the diameter clearance between the ring-type radial protrusion structure on the protrusion of first seal ring in first annular recess and second annular recess 91 and second seal ring, 92 left ledge structures of filling and left end cap 3 and the protrusion 41 of right ledge structure 12 and right end cap 4; Make between wheel body 1 and left end cap 3, the right end cap 4 and form hermetically-sealed construction, thereby silt is difficult for getting into.
Further, as shown in Figure 4, the utility model can also following mode be implemented:
First annular recess is located on the axial inwall of left ledge structure, and second annular recess 91 is located on the axial inwall of right ledge structure 12.Under this embodiment; Endplay between the ring-type radial protrusion structure 42 on the endplay between the ring-type radial protrusion structure on the protrusion of first seal ring in first annular recess and second annular recess 91 and second seal ring, 92 left ledge structures of filling and left end cap 3 and the protrusion 41 of right ledge structure 12 and right end cap 4; Make between wheel body 1 and left end cap 3, the right end cap 4 and form hermetically-sealed construction, thereby silt is difficult for getting into.
Further, the utility model as shown in Figure 5 can also following mode be implemented:
First annular recess is located on the radial outer wall of the ring-type radial protrusion structure on the protrusion of left end cap 3, and second annular recess 91 is located on the radial outer wall of the ring-type radial protrusion structure 42 on the protrusion 41 of right end cap 4.Under this embodiment; The position of first annular recess and second annular recess 91 is moved to respectively on left end cap 3 and the right end cap 4 from wheel body 1; Diameter clearance between the ring-type radial protrusion structure 42 on the diameter clearance between the ring-type radial protrusion structure on the protrusion of first seal ring in first annular recess and second annular recess 91 and second seal ring, 92 left ledge structures of filling and left end cap 3 and the protrusion 41 of right ledge structure 12 and right end cap 4; Make between wheel body 1 and left end cap 3, the right end cap 4 and form hermetically-sealed construction, thereby silt is difficult for getting into.
Further, the utility model as shown in Figure 6 can also following mode be implemented:
First annular recess is located at the axial outer wall right side of the ring-type radial protrusion structure on the protrusion of left end cap 3, and second annular recess is located at the axial outer wall left side of the ring-type radial protrusion structure 42 on the protrusion 41 of right end cap 4.Under this embodiment; Endplay between the ring-type radial protrusion structure 42 on the endplay between the ring-type radial protrusion structure on the protrusion of first seal ring in first annular recess and second annular recess 91 and second seal ring, 92 left ledge structures of filling and left end cap 3 and the protrusion 41 of right ledge structure 12 and right end cap 4; Make between wheel body 1 and left end cap 3, the right end cap 4 and form hermetically-sealed construction, thereby silt is difficult for getting into.
The above is merely the utility model preferred embodiment; Be not thus the restriction the utility model claim; So the equivalent structure that all utilization the utility model specification sheetss and diagramatic content have been done changes, and all is included in the protection domain of the utility model.
Claims (11)
1. the hermetically-sealed construction of a novel caterpillar wheel; Comprise wheel body (1), wheel shaft (2), left end cap (3), right end cap (4), lining (5), float grease seal (6); Said wheel body (1) has the centre hole (11) that runs through two ends; Said centre hole (11) is enclosed within on the said wheel shaft (2) through said lining (5); Said wheel shaft (2) stretches out said wheel body (1) by said centre hole (11) two ends; Said left end cap (3) and right end cap (4) cover said wheel shaft (2) stretch out said wheel body (1) about two ends, be provided with float grease seal (6) between said wheel body (1) and the said left end cap (3), be provided with float grease seal (6) between said wheel body (1) and the said right end cap (4);
The nearly said wheel body of said centre hole (11) (1) left end face place is provided with circular left ledge structure; Said left end cap (3) is provided with protrusion towards said wheel body (1) one side; Said protrusion is provided with ring-type radial protrusion structure; Said protrusion stretches into said centre hole (11) left end, and said ring-type radial protrusion structure and said left ledge structure form the gap coupling;
The nearly said wheel body of said centre hole (11) (1) its right end face place is provided with circular right ledge structure (12); Said right end cap (4) is provided with protrusion (41) towards said wheel body (1) one side; Said protrusion (41) is provided with ring-type radial protrusion structure (42); Said protrusion (41) stretches into said centre hole (11) right-hand member, and said ring-type radial protrusion structure (42) forms the gap coupling with said right ledge structure (12);
It is characterized in that, be provided with first hermetically-sealed construction between the ring-type radial protrusion structure on the protrusion of said left ledge structure and said left end cap (3); Be provided with second hermetically-sealed construction between the ring-type radial protrusion structure (42) on the protrusion (41) of said right ledge structure (12) and said right end cap (4).
2. the hermetically-sealed construction of novel caterpillar wheel according to claim 1 is characterized in that, said first hermetically-sealed construction is first annular recess of being located on the said left ledge structure inwall and first seal ring of being located in said first annular recess.
3. the hermetically-sealed construction of novel caterpillar wheel according to claim 1 is characterized in that, said second hermetically-sealed construction is for being located at second annular recess and second seal ring of being located in said second annular recess on said right ledge structure (12) inwall.
4. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 2, it is characterized in that said first annular recess is located on the said left ledge structure inner radial wall.
5. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 2, it is characterized in that said first annular recess is located on the axial inwall of said left ledge structure.
6. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 2, it is characterized in that said first annular recess is located on the radial outer wall of the ring-type radial protrusion structure on the protrusion of said left end cap (3).
7. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 2, it is characterized in that said first annular recess is located at the axial outer wall right side of the ring-type radial protrusion structure on the protrusion of said left end cap (3).
8. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 3, it is characterized in that said second annular recess is located on said right ledge structure (12) inner radial wall.
9. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 3, it is characterized in that said second annular recess is located on the axial inwall of said right ledge structure (12).
10. like the hermetically-sealed construction of the said novel caterpillar wheel of claim 3, it is characterized in that said second annular recess is located on the radial outer wall of the ring-type radial protrusion structure (42) on the protrusion (41) of said right end cap (4).
11. the hermetically-sealed construction like the said novel caterpillar wheel of claim 3 is characterized in that, said second annular recess is located at the axial outer wall left side of the ring-type radial protrusion structure (42) on the protrusion (41) of said right end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205079331U CN202358213U (en) | 2011-12-08 | 2011-12-08 | Sealing structure of novel track roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205079331U CN202358213U (en) | 2011-12-08 | 2011-12-08 | Sealing structure of novel track roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202358213U true CN202358213U (en) | 2012-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205079331U Expired - Fee Related CN202358213U (en) | 2011-12-08 | 2011-12-08 | Sealing structure of novel track roller |
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| Country | Link |
|---|---|
| CN (1) | CN202358213U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745754A (en) * | 2017-11-09 | 2018-03-02 | 徐工集团工程机械有限公司 | High reliability wheel design and excavator |
| CN108162694A (en) * | 2018-01-04 | 2018-06-15 | 山东雷沃传动有限公司 | A kind of Tractor Driving Axle |
| CN112682511A (en) * | 2020-12-29 | 2021-04-20 | 三一重型装备有限公司 | Rotating wheel and engineering equipment |
-
2011
- 2011-12-08 CN CN2011205079331U patent/CN202358213U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745754A (en) * | 2017-11-09 | 2018-03-02 | 徐工集团工程机械有限公司 | High reliability wheel design and excavator |
| CN108162694A (en) * | 2018-01-04 | 2018-06-15 | 山东雷沃传动有限公司 | A kind of Tractor Driving Axle |
| CN112682511A (en) * | 2020-12-29 | 2021-04-20 | 三一重型装备有限公司 | Rotating wheel and engineering equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20141208 |
|
| EXPY | Termination of patent right or utility model |