CN202806217U - Wheel installation structure and land leveler including the same - Google Patents
Wheel installation structure and land leveler including the same Download PDFInfo
- Publication number
- CN202806217U CN202806217U CN 201220510339 CN201220510339U CN202806217U CN 202806217 U CN202806217 U CN 202806217U CN 201220510339 CN201220510339 CN 201220510339 CN 201220510339 U CN201220510339 U CN 201220510339U CN 202806217 U CN202806217 U CN 202806217U
- Authority
- CN
- China
- Prior art keywords
- wheel
- mounting structure
- wheel mounting
- described wheel
- wheel 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model provides a wheel installation structure and a land leveler including the wheel installation structure. The wheel installation structure comprises a wheel shaft, a wheel hub, and a space ring, wherein the wheel hub is sleeved outside the wheel shaft, the space ring is sleeved on a first end portion, towards an axle side, of the wheel shaft, and a labyrinth type sealing structure is arranged between the opposite end faces of the space ring and the wheel hub. The land leveler comprises the wheel installation structure, wherein the wheel installation structure is the aforementioned wheel installation structure. The wheel installation structure has the advantages of being good in sealing performance.
Description
Technical field
The utility model relates to technical field of engineering machinery, in particular to a kind of wheel mounting structure and comprise the road grader of this wheel mounting structure.
Background technology
Extremely shown in Figure 6 such as Fig. 1, crane span structure 5 ' two ends are hinged with joint, left wheel inclination angle 61 ' and right Camber angle joint 62 ' respectively by bearing pin 51 ', hinged by inclination pull bar 63 ' between joint, left wheel inclination angle 61 ' and the right Camber angle joint 62 ', form the four-bar linkage that front-wheel tilts; The otic placode of front-wheel dump ram 64 ' one end and crane span structure 5 ' is hinged, and the other end and right Camber angle joint 62 ' are hinged, forms the driver train that front-wheel tilts, and when the piston rod of front-wheel dump ram 64 ' is flexible, can finish the inclination operating mode of road grader front-wheel.
Left and right sides wheel shaft 1 ' is welded and fixed with left steering joint 71 ' and right steering joint 72 ' respectively, then respectively that left and right sides two axles 1 ' is hinged with joint, left wheel inclination angle 61 ' and right Camber angle joint 62 ' by king pin 73 ', hinged with steering track rod 74 ' between left steering joint 71 ' and right steering joint 72 ' simultaneously, form the four-bar linkage that turns to; Left steering joint 71 ' and right steering joint 72 ' are hinged with an end of two steering cylinders 75 ' respectively, the other end of two steering cylinders 75 ' and the otic placode of crane span structure 5 ' are hinged, the driver train that formation turns to, when the piston rod of steering cylinder 75 ' is flexible, can realize the turning function of road grader front-wheel.
The one group of ring plate 12 ' of packing in the circular groove of spacer ring 11 ' then is inserted in the wheel shaft 1 '; The inner ring of inboard bearing 81 ' is set on the wheel shaft 1 ', the outer ring of the outer ring of inboard bearing 81 ' and outer bearing 82 ' is contained on the internal perisporium at wheel hub 2 ' two ends of front-wheel, the wheel hub 2 ' of front-wheel is set on the wheel shaft 1 ', and the inner ring with outer bearing 82 ' is set on the wheel shaft 1 ' simultaneously; Another group ring plate 12 ' is packed in the circular groove of end cap 3 ' in advance, then end cap 3 ' is fastened on the end face of wheel shaft 1 ', and adjusts the endplay of inboard bearing 81 ' and outer bearing 82 ' with adjusting pad 83 '.
The ring plate 12 ' of prior art is the certain elastomeric open type annular steel disc of having of opening, generally is 2 ~ 3 one group, fits by the elasticity tension of ring plate and the wheel hub 2 ' butt of front-wheel, and the opening arranged in dislocation of ring plate 12 ' is to reach the grease sealed purpose.
Propons is as the critical component of road grader, bearing the turning to of road grader, the functions such as front-wheel tilts, driven supporting or f-w-d.Road grader is as earthmoving machinery, it is applied in the more working environment of dust usually, in operation or driving process, may also can pass through the ponding road surface, and the wheel hub of road grader advances ash, water inlet or lubricating grease and oozes out and all can cause propons to damage, and this has just proposed high requirement to the wheel shaft sealing property of road grader front axle wheel.
After long-time the use, the opening of ring plate 12 ' may coincide together, and causes lubricating grease to ooze out from opening, and the bearing that the dust that the while is outside and ponding also are penetrated into axletree easily is inner, causes the damage of wheel.
The utility model content
The utility model aims to provide a kind of road grader that has the wheel mounting structure of good seal performance and comprise this wheel mounting structure.
To achieve these goals, according to an aspect of the present utility model, provide a kind of wheel mounting structure, having comprised: wheel shaft; Wheel hub is set in outside the wheel shaft; And spacer ring, be set in the first end end towards the vehicle bridge side of wheel shaft; Be provided with labyrinth seal structure between the end face respect to one another of spacer ring and wheel hub.
Further, labyrinth seal structure comprises: be positioned at the first end end face of spacer ring and along its a plurality of annular grooves that circumferentially extend; And be positioned at wheel hub towards the first end end face of vehicle bridge side and with a plurality of annular grooves a plurality of annular protrusions of corresponding matching one by one.
Further, has tolerance clearance between the annular groove that mates with each other of labyrinth seal structure and the annular protrusion.
Further, wheel shaft and spacer ring are one-body molded.
Further, wheel shaft and spacer ring are welded and fixed.
Further, wheel mounting structure also comprises the cover of dust that is tightly connected with wheel hub, and cover of dust is fixed on the end face of the second end of dorsad vehicle bridge side of wheel hub.
Further, cover of dust has the seal groove that circumferentially extends along it, is embedded with sealing member in the seal groove.
Further, sealing member is O-ring seals.
Further, wheel mounting structure also comprises: end cap, on the second end end face of the dorsad vehicle bridge side that is fixed in wheel shaft of being spirally connected; Ring plate, be embedded in the circular groove of the periphery wall of end cap and with the wheel hub butt.
According on the other hand of the present utility model, a kind of road grader is provided, comprise wheel mounting structure, wheel mounting structure is aforesaid wheel mounting structure.
Use the technical solution of the utility model, by concave-convex fit structure being set as hermetically-sealed construction between spacer ring and wheel hub, thereby replace original ring plate seal form, the seal failure problem of having avoided the ring plate superposition of end gap to cause is improved the sealing property of axletree.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the front view according to the road grader propons of prior art;
Fig. 2 shows the birds-eye view according to the road grader propons of Fig. 1;
Fig. 3 shows the A place enlarged drawing according to the road grader propons of Fig. 1;
Fig. 4 shows the scheme drawing that the end cap according to the wheel of the road grader propons of prior art cooperates with wheel hub;
Fig. 5 shows the front view according to the wheel shaft of the wheel of the road grader propons of prior art;
Fig. 6 shows the left view according to the wheel shaft of Fig. 5;
Fig. 7 shows the front view according to the road grader propons of embodiment of the present utility model;
Fig. 8 shows the birds-eye view according to the road grader propons of Fig. 7;
Fig. 9 shows the B place enlarged drawing according to the road grader propons of Fig. 7;
Figure 10 shows the C place enlarged drawing according to the road grader propons of Fig. 7;
Figure 11 shows the D place enlarged drawing according to the road grader propons of Fig. 7;
Figure 12 shows the scheme drawing according to the end cap of the wheel mounting structure of the road grader propons of embodiment of the present utility model;
Figure 13 shows the scheme drawing that the end cap according to the wheel mounting structure of the road grader propons of embodiment of the present utility model cooperates with wheel hub;
Figure 14 shows the front view according to the wheel shaft of the wheel mounting structure of the road grader propons of embodiment of the present utility model; And
Figure 15 shows the left view according to the wheel shaft of Figure 14.
The specific embodiment
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
To shown in Figure 15, according to embodiment of the present utility model, provide a kind of wheel mounting structure such as Fig. 7, comprised wheel shaft 1, wheel hub 2, end cap 3 and spacer ring 11.
In conjunction with referring to Fig. 9, wheel hub 2 is set in outside the wheel shaft 1, and spacer ring 11 is set on the wheel shaft 1, and be positioned at wheel shaft 1 towards the first end end of vehicle bridge side, end cap 3 is fixed in by binding bolt 14 on the second end end face of dorsad vehicle bridge of wheel shaft 1.
The mentality of designing of the utility model scheme is, can increase the static seal form in the outside of wheel shaft, prevents the damage problem that inside and outside seepage is brought, and keeps simultaneously original ring plate hermetically-sealed construction; Can adopt the non-contacting seal form to reach sealing effectiveness in the inboard, prevent that long term wear causes seal failure between the parts; In addition, avoid the space occurring between spacer ring and the wheel shaft, to prevent the seepage from this slit such as dust, rainwater, lubricating grease.
Based on aforesaid mentality of designing, in order to play good sealing effectiveness, between the end face respect to one another of spacer ring 11 and wheel hub 2, be provided with labyrinth seal structure.
Labyrinth seal structure comprises the first end end face that is positioned at spacer ring 11 and along its a plurality of annular grooves 111 that circumferentially extend, and a plurality of annular protrusions 21 towards the first end end face of vehicle bridge side that are positioned at wheel hub 2, between a plurality of annular protrusions 21 and a plurality of annular groove 111 one by one corresponding matching annular protrusion 21 is embedded in annular groove 111, can play the effect of sealing.Utilize labyrinth seal structure, can save the ring plate that is embedded in the prior art in spacer ring 11, thereby avoided owing to the ring plate opening overlaps the leakage problems that causes.
In order to prevent the wearing and tearing between the parts, has tolerance clearance between the recess that mates with each other of labyrinth seal structure and the protuberance, make labyrinth seal structure form the non-contacting seal form, avoid the mode of original employing wheel hub 2 and ring plate contact-type seal, because of the long-term bad problem of sealing effectiveness of using ring plate to follow the string and cause.Road grader in the process of moving, wheel hub 2 not stalls are moving, the non-contacting seal form that forms between the labyrinth seal structure can prevent that the lubricating grease of wheel mounting structure inside from leaking, and can stop that also outside dust, rainwater enter axletree inside.
In the labyrinth seal structure here, also can be annular groove 111 to be arranged at the first end end face of wheel hub 2, and annular protrusion 21 is arranged at the first end end face of spacer ring 11.Can play equally good non-contacting seal effect.
In order to prevent that the space between wheel shaft 1 and the spacer ring 11 from causing seepage, can with wheel shaft 1 and spacer ring 11 one machine-shapings, perhaps with wheel shaft 1 and spacer ring 11 weld togethers, avoid producing the slit between wheel shaft 1 and the spacer ring 11.
Because the effect of static seal structure is better than the effect of dynamic seal, and the second end of the dorsad vehicle bridge side of wheel shaft 1 does not have other members, so, in order further to improve sealing effectiveness, can cover of dust 4 be set at the end face of the second end of the dorsad vehicle bridge side of wheel hub 2, cover of dust 4 is fixed on the second end end face of wheel hub 2 and can rotates with wheel hub 2, and cover of dust 4 is tightly connected with wheel hub 2.
Preferably, the mode of being tightly connected is at cover of dust 4 seal groove 41 that circumferentially extends along it to be set, and is embedded with sealing member 42 in the seal groove 41.The seal 42 can be O-ring seals.In when assembling, in the seal groove 41 of cover of dust 4, be embedded O-ring seals, can form like this one with wheel shaft 1 relative static static seal structure.
In order further to improve sealing effectiveness, kept the ring plate 15 in the circular groove of end cap 3 periphery walls, this ring plate 15 forms the ring plate movable sealing structures with wheel hub 2.The ring plate movable sealing structure has formed the double sealing structure that sound combines with aforesaid static seal structure, with further raising sealing effectiveness, can guarantee more reliably the lubricated of propons, prevents that effectively the wheel rim bearing is contaminated.
The utility model also provides a kind of road grader, comprises wheel mounting structure, and this wheel mounting structure is aforementioned any wheel mounting structure.This wheel mounting structure can be connected to the propons place of road grader.
From above description, can find out, the utility model the above embodiments have realized following technique effect: between spacer ring and wheel hub labyrinth seal structure is set, thereby replace original ring plate seal form, the seal failure problem of having avoided the ring plate superposition of end gap to cause, improve the sealing property of axletree, the lubricating grease that can effectively prevent axletree oozes out or the infiltration of outside dust, rainwater, and this concave-convex fit structure simple in structure is easy to processing.Opposite side adopts the double sealing structure of combining dynamic and static research, can guarantee more reliably the lubricated of propons, prevents that effectively the wheel rim bearing is contaminated.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. wheel mounting structure comprises:
Wheel shaft (1);
Wheel hub (2) is set in outside the described wheel shaft (1); And
Spacer ring (11) is set in the first end end towards the vehicle bridge side of described wheel shaft (1);
It is characterized in that, be provided with labyrinth seal structure between the end face respect to one another of described spacer ring (11) and described wheel hub (2).
2. wheel mounting structure according to claim 1 is characterized in that, described labyrinth seal structure comprises:
Be positioned at the first end end face of described spacer ring (11) and along its a plurality of annular grooves (111) that circumferentially extend; And
Be positioned at described wheel hub (2) towards the first end end face of described vehicle bridge side and with a plurality of described annular grooves (111) a plurality of annular protrusions (21) of corresponding matching one by one.
3. wheel mounting structure according to claim 1 is characterized in that, has tolerance clearance between the described annular groove (111) that mates with each other of described labyrinth seal structure and the described annular protrusion (21).
4. each described wheel mounting structure in 3 according to claim 1 is characterized in that described wheel shaft (1) is one-body molded with described spacer ring (11).
5. each described wheel mounting structure in 3 according to claim 1 is characterized in that described wheel shaft (1) is welded and fixed with described spacer ring (11).
6. each described wheel mounting structure in 3 according to claim 1, it is characterized in that, described wheel mounting structure also comprises the cover of dust (4) that is tightly connected with described wheel hub (2), and described cover of dust (4) is fixed on the end face of the second end of dorsad described vehicle bridge side of described wheel hub (2).
7. wheel mounting structure according to claim 6 is characterized in that, described cover of dust (4) has the seal groove (41) that circumferentially extends along it, is embedded with sealing member (42) in the described seal groove (41).
8. wheel mounting structure according to claim 7 is characterized in that, described sealing member (42) is O-ring seals.
9. wheel mounting structure according to claim 7 is characterized in that, described wheel mounting structure also comprises:
End cap (3) is on the second end end face of the dorsad vehicle bridge side that is fixed in described wheel shaft (1) of being spirally connected;
Ring plate (15), be embedded in the circular groove of the periphery wall of described end cap (3) and with described wheel hub (2) butt.
10. a road grader comprises wheel mounting structure, it is characterized in that, described wheel mounting structure is each described wheel mounting structure in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510339 CN202806217U (en) | 2012-09-29 | 2012-09-29 | Wheel installation structure and land leveler including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220510339 CN202806217U (en) | 2012-09-29 | 2012-09-29 | Wheel installation structure and land leveler including the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202806217U true CN202806217U (en) | 2013-03-20 |
Family
ID=47865151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220510339 Expired - Fee Related CN202806217U (en) | 2012-09-29 | 2012-09-29 | Wheel installation structure and land leveler including the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202806217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043448A (en) * | 2019-12-18 | 2020-04-21 | 杭州申昊科技股份有限公司 | Pipeline robot |
| CN111043449A (en) * | 2019-12-18 | 2020-04-21 | 杭州申昊科技股份有限公司 | Wheel type driving structure and pipeline robot with same |
-
2012
- 2012-09-29 CN CN 201220510339 patent/CN202806217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043448A (en) * | 2019-12-18 | 2020-04-21 | 杭州申昊科技股份有限公司 | Pipeline robot |
| CN111043449A (en) * | 2019-12-18 | 2020-04-21 | 杭州申昊科技股份有限公司 | Wheel type driving structure and pipeline robot with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204605404U (en) | A kind of front drive axle of tractor | |
| CN202806217U (en) | Wheel installation structure and land leveler including the same | |
| CN202193136U (en) | Supporting wheel or guide wheel with combined type mud water sealing structure | |
| CN203548918U (en) | Rear wheel combined type rotary oil seal | |
| CN201357881Y (en) | End surface sealed bearing as well as bearing wheel, drag chain wheel and guiding wheel provided with the same | |
| CN202152852U (en) | Dustproof sealing ring | |
| CN201539564U (en) | Combined heavy truck hub oil seal | |
| CN101701606B (en) | Bearing sealing device of electromagnetic clutch of automobile air conditioner compressor | |
| CN202203403U (en) | Oil seal for wheel edge of engineering machinery | |
| CN202782517U (en) | Wheel installation structure and land leveler with same | |
| CN202201077U (en) | Supporting wheel | |
| US11592111B2 (en) | Torque resistant seal | |
| CN202040328U (en) | Floating oil seal for mechanically sealing end surfaces | |
| CN205417835U (en) | Powerful seal structure of hydraulic shovel thrust wheel | |
| CN211082842U (en) | Hub oil seal protection device | |
| CN201071935Y (en) | Box type oil seal | |
| CN202203406U (en) | Oil seal for wheel edge of engineering machinery | |
| CN204267535U (en) | Four-wheel beach buggy turns to column rotary seal lubricating structure | |
| CN202732827U (en) | Vibration damper oil seal with wear-resistant dustproof lip | |
| CN202140575U (en) | Assembly type oil seal | |
| CN202790543U (en) | Oil seal of tractor hub | |
| CN207843099U (en) | Dust-proof thrust wheel | |
| CN201502710U (en) | Springless oil seal | |
| CN207470778U (en) | A kind of polytetrafluoroethylene (PTFE) lip-type packing of belt wear ring | |
| CN202209423U (en) | Wheel-edge oil seal |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200929 |