CN202089138U - Novel sealing structure for supporting wheel - Google Patents
Novel sealing structure for supporting wheel Download PDFInfo
- Publication number
- CN202089138U CN202089138U CN2011201504017U CN201120150401U CN202089138U CN 202089138 U CN202089138 U CN 202089138U CN 2011201504017 U CN2011201504017 U CN 2011201504017U CN 201120150401 U CN201120150401 U CN 201120150401U CN 202089138 U CN202089138 U CN 202089138U
- Authority
- CN
- China
- Prior art keywords
- wheel body
- caterpillar wheel
- annular
- circular open
- open ends
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a novel sealing structure for a supporting wheel. The sealing structure comprises a bushing which is sleeved on a wheel axle, wherein a supporting wheel body is sleeved on the bushing; two end covers which are sleeved on the wheel axle are positioned at the two ends of the supporting wheel body; the sealing structure is characterized in that: the two ends of the supporting wheel body are circular open ends; a plurality of first annular bosses are arranged in the circular open ends of the supporting wheel body; the external appearances of the end covers are annular; the outer side faces of the annular end covers are provided with a plurality of second annular bosses; the diameter of the circular open ends of the supporting wheel body is greater than the diameter of the end covers; and the circular open ends of the supporting wheel body cover the end covers. Through improving the gap form between the supporting wheel body and the end covers, the labyrinth sealing effect is enhanced, silts and the like can be effectively prevented from invading gaps of the wheel body and the end covers and premature sealing failure of a floating oil seal is avoided, so that the failure rate of oil leakage of the floating seal is reduced.
Description
Technical field
The utility model relates to a kind of packing technique of engineering machinery field, relates in particular to a kind of hermetically-sealed construction of novel caterpillar wheel.
Background technology
At present, in construction machinery and equipment, caterpillar wheel is the chassis load member that is widely used in construction machinery and equipments such as traxcavator, hoisting crane, be everlasting and work in muddy water, the dust, and bear shar pounding, service conditions is very poor, particularly when there is impurity in ambient environment, can have influence on the performance of caterpillar wheel.
Fig. 1 shows a kind of caterpillar wheel according to prior art, comprises caterpillar wheel body 1, wheel shaft 2, left end cap 3, right end cap 4, lining 5, float grease seal 6, O type circle 7 and locating dowel pin 8.Wherein, left end cap 3 is used to be connected the vehicle frame (not shown in figure 1) with right end cap 4, when caterpillar wheel is worked, left end cap 3 and right end cap 4 maintain static, caterpillar wheel body 1 is used for cooperating with crawler belt rail level (not shown in figure 1) makes caterpillar wheel body 1 roll along the crawler belt rail level, so require to relatively rotate between wheel body and the end cap, promptly certain interval must be arranged.
Reference is as the float grease seal among Fig. 16, the seal form that adopts between wheel body and the end cap in the prior art is based on this type of dynamic seal of float grease seal, but, the gap of caterpillar wheel wheel body and end cap is based on " linear pattern " gap (combining with reference to the I zone shown in the figure 2), when main frame is constructed under bad working environments such as silt, silt enters into caterpillar wheel by the gap easily, rubber o-ring in the float grease seal 67 is stuck, make O type circle 7 not carry out elastic deformation freely, cause float grease seal 6 leakage of oils.
The utility model content
The purpose of this utility model is to solve in the prior art, silt is easily invaded the problem in the gap between caterpillar wheel wheel body and the end cap, be stuck with the float grease seal O type circle of avoiding causing thus, can not carry out the actv. elastic deformation, and the fault of the floating leak sealing oil that therefore causes.
The utility model provides a kind of hermetically-sealed construction of novel caterpillar wheel, comprise the lining that is enclosed within on the wheel shaft, be with the caterpillar wheel body on the described lining, two end caps that are enclosed within on the wheel shaft are positioned at the two ends of described caterpillar wheel body, wherein, the two ends of described caterpillar wheel body are circular open ends, be provided with some first annular boss in the described caterpillar wheel body circular open ends, the outline of described end cap is an annular arrangement, the lateral surface of described annular arrangement end cap is provided with some second annular boss, the diameter of described caterpillar wheel body circular open ends is bigger than the diameter of described end cap, the described end cap of described caterpillar wheel body circular open ends outsourcing.
The hermetically-sealed construction of above-mentioned novel caterpillar wheel, wherein, described caterpillar wheel body circular open ends and described being arranged between the annular end cap are all left the gap in axial and radial direction.
The hermetically-sealed construction of above-mentioned novel caterpillar wheel, wherein, described first annular boss and described second annular boss shift to install respectively, constitute some labyrinth seal structures, and described caterpillar wheel body circular open ends and the described gap that is arranged between the annular end cap are the non-linear passage.
The hermetically-sealed construction of above-mentioned novel caterpillar wheel, wherein, the thickness of described some first annular boss is first size, the thickness of described some second annular boss is second size, described first size and described second measure-alike.
The hermetically-sealed construction of above-mentioned novel caterpillar wheel, wherein, the space between the two described labyrinth seal structures is filled with the high elasticity abrasion-proof material.
The hermetically-sealed construction of above-mentioned novel caterpillar wheel, wherein, described caterpillar wheel body circular open ends is provided with annular groove, and corresponding described second annular boss of the size of described annular groove all leaves the gap in axial and radial direction between described annular groove and described second annular boss.
The utility model improves the gap form between caterpillar wheel wheel body and the end cap, increase the labyrinth packing effect, 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, simultaneously, process caterpillar wheel wheel body of the present utility model and end cap and can't increase too much extra cost.
Description of drawings
By reading the detailed description of non-limiting example being done with reference to following accompanying drawing, it is more obvious that other features, objects and advantages of the present utility model will become:
Fig. 1 illustrates according to prior art, a kind of cutaway view of caterpillar wheel;
Fig. 2 illustrates according to of the present utility model, a kind of cutaway view of novel caterpillar wheel;
Fig. 3 illustrates according to of the present utility model, a kind of local enlarged diagram of hermetically-sealed construction of novel caterpillar wheel; And
Fig. 4 illustrates according to one of the utility model and changes example, a kind of local enlarged diagram of hermetically-sealed construction of novel caterpillar wheel.
The specific embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is further elaborated.The specific embodiment described herein only is used to explain the utility model, and is not used in qualification protection domain of the present utility model.
Fig. 2 illustrates according to of the present utility model, a kind of cutaway view of novel caterpillar wheel.Comprise caterpillar wheel body 1, wheel shaft 2, left end cap 3, right end cap 4, lining 5, float grease seal 6, O type circle 7 and locating dowel pin 8.Particularly, lining 5 is enclosed within on the wheel shaft 2, be with caterpillar wheel body 1 on the lining 5, two end caps 3 and 4 that are enclosed within on the wheel shaft are positioned at the two ends of caterpillar wheel body 1, wherein, the two ends of caterpillar wheel body 1 are circular open ends, be provided with some first annular boss 101 in caterpillar wheel body 1 circular open ends, end cap 3 and 4 outline are annular arrangement, the lateral surface of described annular arrangement end cap is provided with some second annular boss 201, the diameter of caterpillar wheel body 1 circular open ends is bigger than the diameter of end cap 3 and 4, caterpillar wheel body 1 circular open ends outsourcing end cap 3 and 4.
I district among Fig. 2 is the local figure of caterpillar wheel body 1 its right end face, goes out according to of the present utility model below in conjunction with shown in Figure 3, and a kind of local enlarged diagram of hermetically-sealed construction of novel caterpillar wheel is described.
All leave the gap in axial and radial direction between caterpillar wheel body 1 circular open ends and annular end cap 3 and 4.In a preference, caterpillar wheel body 1 two ends symmetry, annular end cap 3 is identical with 4.
The local enlarged diagram of the hermetically-sealed construction of caterpillar wheel shown in Figure 3 comprises caterpillar wheel 1 right part and right end cap 4, and caterpillar wheel 1 left part and left end cap 4 can be realized in conjunction with Fig. 3, do not repeat them here.
As shown in the figure, first annular boss 101 and second annular boss 102 shift to install respectively, constitute a labyrinth seal structure, and described caterpillar wheel body circular open ends and the described gap that is arranged between the annular end cap are the non-linear passage.Wherein, the thickness of first annular boss 101 is first size, and the thickness of second annular boss 102 is second size, described first size and described second measure-alike.Also show a caterpillar wheel body annular boss 102 and a right end cap annular boss 202 among Fig. 3
First annular boss 101 and second annular boss 102 form a hermetically-sealed construction; a caterpillar wheel body annular boss 102 and a right end cap annular boss 202 form another hermetically-sealed construction; space 301 between two hermetically-sealed constructions is filled with the high elasticity abrasion-proof material; be used to hinder the intrusion of silt, such two seals structure the float grease seal 6 that can farthest protect as shown in Figure 2, the wearing and tearing that O type circle 7 is not subjected to introduced contaminants are set.
Shown in Figure 4 change example, a kind of local enlarged diagram of hermetically-sealed construction of novel caterpillar wheel according to one of the utility model.Caterpillar wheel body 1 circular open ends is provided with annular groove 103, corresponding second annular boss 201 of the size of annular groove 103, annular groove 103 and one second annular boss 201 fit in hermetically-sealed construction and produce the boss function, all leave the gap in axial and radial direction between annular groove 103 and one second annular boss 201.
Go up specific embodiment of the utility model is described.It will be appreciated that the utility model is not limited to above-mentioned specific implementations, wherein method of not describing in detail to the greatest extent and treating process are construed as with the common mode in this area and are implemented; Those skilled in the art can make various distortion or modification within the scope of the claims, and this does not influence flesh and blood of the present utility model.
Claims (6)
1. the hermetically-sealed construction of a novel caterpillar wheel, comprise the lining that is enclosed within on the wheel shaft, be with the caterpillar wheel body on the described lining, two end caps that are enclosed within on the wheel shaft are positioned at the two ends of described caterpillar wheel body, it is characterized in that, the two ends of described caterpillar wheel body are circular open ends, be provided with some first annular boss in the described caterpillar wheel body circular open ends, the outline of described end cap is an annular arrangement, the lateral surface of described annular arrangement end cap is provided with some second annular boss, the diameter of described caterpillar wheel body circular open ends is bigger than the diameter of described end cap, the described end cap of described caterpillar wheel body circular open ends outsourcing.
2. the hermetically-sealed construction of novel caterpillar wheel according to claim 1 is characterized in that, described caterpillar wheel body circular open ends and described being arranged between the annular end cap are all left the gap in axial and radial direction.
3. the hermetically-sealed construction of novel caterpillar wheel according to claim 1, it is characterized in that, described first annular boss and described second annular boss shift to install respectively, constitute some labyrinth seal structures, described caterpillar wheel body circular open ends and the described gap that is arranged between the annular end cap are the non-linear passage.
4. according to the hermetically-sealed construction of claim 1 or 3 described novel caterpillar wheels, it is characterized in that, the thickness of described some first annular boss is first size, and the thickness of described some second annular boss is second size, described first size and described second measure-alike.
5. the hermetically-sealed construction of novel caterpillar wheel according to claim 3 is characterized in that, the space between the two described labyrinth seal structures is filled with the high elasticity abrasion-proof material.
6. the hermetically-sealed construction of novel caterpillar wheel according to claim 4, it is characterized in that, described caterpillar wheel body circular open ends is provided with annular groove, corresponding described second annular boss of the size of described annular groove all leaves the gap in axial and radial direction between described annular groove and described second annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201504017U CN202089138U (en) | 2011-05-12 | 2011-05-12 | Novel sealing structure for supporting wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201504017U CN202089138U (en) | 2011-05-12 | 2011-05-12 | Novel sealing structure for supporting wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202089138U true CN202089138U (en) | 2011-12-28 |
Family
ID=45364224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201504017U Expired - Fee Related CN202089138U (en) | 2011-05-12 | 2011-05-12 | Novel sealing structure for supporting wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202089138U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897237A (en) * | 2012-10-26 | 2013-01-30 | 凯盛重工有限公司 | Dustproof supporting wheel |
| CN107323547A (en) * | 2017-07-06 | 2017-11-07 | 福建泉海工贸投资集团有限公司 | Spliced guide wheel |
| CN109690153A (en) * | 2017-02-09 | 2019-04-26 | 日立建机株式会社 | The mobile devices of engineering machinery |
| CN110242734A (en) * | 2019-05-28 | 2019-09-17 | 龙工（上海）精工液压有限公司 | A kind of running motor speed reducer structure protecting float grease seal |
| WO2023132168A1 (en) * | 2022-01-06 | 2023-07-13 | コベルコ建機株式会社 | Lower traveling body for construction machine |
-
2011
- 2011-05-12 CN CN2011201504017U patent/CN202089138U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897237A (en) * | 2012-10-26 | 2013-01-30 | 凯盛重工有限公司 | Dustproof supporting wheel |
| CN109690153A (en) * | 2017-02-09 | 2019-04-26 | 日立建机株式会社 | The mobile devices of engineering machinery |
| CN109690153B (en) * | 2017-02-09 | 2020-04-03 | 日立建机株式会社 | Traveling device for construction machine |
| CN107323547A (en) * | 2017-07-06 | 2017-11-07 | 福建泉海工贸投资集团有限公司 | Spliced guide wheel |
| CN107323547B (en) * | 2017-07-06 | 2023-05-09 | 福建泉海工贸投资集团有限公司 | Spliced guide wheel |
| CN110242734A (en) * | 2019-05-28 | 2019-09-17 | 龙工（上海）精工液压有限公司 | A kind of running motor speed reducer structure protecting float grease seal |
| WO2023132168A1 (en) * | 2022-01-06 | 2023-07-13 | コベルコ建機株式会社 | Lower traveling body for construction machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202089138U (en) | Novel sealing structure for supporting wheel | |
| CN204477303U (en) | Seal arrangement and seal ring thereof | |
| CN104595493A (en) | Sealing device and sealing ring thereof | |
| CN105626872A (en) | Container packaging type mechanical seal | |
| CN203051766U (en) | Floating oil seal component and mechanical device with same | |
| CN201357881Y (en) | End surface sealed bearing as well as bearing wheel, drag chain wheel and guiding wheel provided with the same | |
| CN203362845U (en) | Sealed radial spherical plain bearing | |
| CN201265650Y (en) | Spring composite sealing ring | |
| CN202827829U (en) | Thrust wheel and engineering machinery | |
| CN102966665A (en) | Double-lip sealing type four-point contact ball turntable bearing | |
| CN107738888B (en) | Novel sealing device for roller shaft of belt conveyor under special corrosion-resistant and dust-proof working conditions | |
| CN216199475U (en) | Oil cylinder sealing device | |
| CN201866252U (en) | Combined sealing ring | |
| CN104358858A (en) | Multi-lip framework type oil sealing device | |
| CN204978925U (en) | Novel stand wear and tear bull -dozer thrust wheel | |
| CN201714978U (en) | Magnetic floating oil seal | |
| CN201714976U (en) | Mechanical oil seal | |
| CN204099597U (en) | A kind of semicircle continuous sealing structure | |
| CN204025368U (en) | Internal and external cycle labyrinth sealed roller bearing units | |
| CN201963878U (en) | Oil seal ring | |
| CN104879478A (en) | Sealing device of amphibious track-laying vehicle side speed reducer | |
| CN2900733Y (en) | Ground spring seal structure | |
| CN201417988Y (en) | Motor shaft end seal of direct-connected planetary cone disc type stepless speed changer | |
| CN206159475U (en) | Sealing washer with automatic compensation function | |
| CN201705937U (en) | Combined type sealing ring with antifriction distance ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20140512 |