CN201173291Y - Connection shaft dust proof oil seal for loading apparatus and digging machine - Google Patents
Connection shaft dust proof oil seal for loading apparatus and digging machine Download PDFInfo
- Publication number
- CN201173291Y CN201173291Y CNU200820080929XU CN200820080929U CN201173291Y CN 201173291 Y CN201173291 Y CN 201173291Y CN U200820080929X U CNU200820080929X U CN U200820080929XU CN 200820080929 U CN200820080929 U CN 200820080929U CN 201173291 Y CN201173291 Y CN 201173291Y
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- CN
- China
- Prior art keywords
- oil
- oil seal
- coupling shaft
- seal cover
- axle sleeve
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- 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
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Abstract
The utility model relates to a dust proof and oil protecting seal for a connecting shaft of a loading machine and an excavating machine. Annular dummy clubs are respectively arranged on a shaft and a shaft sleeve at the combining part between the connecting shaft and the shaft sleeve, and an oil seal cover is installed on the annular dummy clubs in a rotary way. The clearance between the two dummy clubs is sealed through utilizing asphalt roofing felt in the oil seal cover, and the rotating connection with the two dummy clubs is formed. When the loading machine and the excavating machine are in operation, the lubricating oil between the connecting shaft and the shaft sleeve can not be extruded during the reciprocating rotation of the loading machine and the excavating machine, and the external sand and dust also can not enter into the shaft sleeve. Therefore, the lubricating oil filled into the shaft sleeve at one time can be used for a long period of time, and the dust proof and oil protecting effect is realized.
Description
Technical field
The utility model relates to the dustproof oil seal technique that protects of loader excavator coupling shaft.
Background technique
Loader and excavator all belong to heavy engineering machinery, and its target all is earth, sandstone, and working environment accompanies with dust.So, these two kinds of coupling shafts that machinery all has many places to be combined by rotating shaft and axle sleeve, the two no bearing or pellet shot from a slingshot but only reduce pivoting friction by lubricant oil.The as easy as rolling off a log suction sand and dust of rotating part, and make deterioration of lubricant, rotatable parts are impaired.Wherein particularly coupling shaft and axle sleeve jointing leave groove, the dress rubber ring is as oil sealing in the groove, and the seal form of this rubber ring and rotating shaft and shaft room is loose, and in fact the rotation formula of rotating shaft and axle sleeve moves about being back and forth, during rotation, lubricant oil is extruded, and returns when rotating, and dust is inhaled into, the dust that sucks mixes one with lubricant oil, deterioration of lubricant, rotatingshaft very easily damages, and wastes lubricant oil simultaneously.If rubber ring combines with groove closely, the axle and the axle sleeve that then back and forth rotate back and forth will be discerped rubber ring.At present, the user just have only in the axle sleeve of coupling shaft, annotate several times every day lubricant oil solves, the one, oil consumption is big, the maintenance cost height also causes inefficiency.The 2nd, can not change intrusion because of sand and dust, accelerate the present situation of rotating component wearing and tearing, make the problem that shortens mechanical working life.More seriously these component are long slightly and when can not get in time injecting lubricant oil, often cause operation ineffective in the operating time, and phenomenon is killed in rotating shaft, at this moment, just must dismounting remove the dust on the rotating component.Because loader or the such heavy machinery of excavator, parts also are quite huge heavinesses, do not having under special dismounting and the lifting appliance situation, dismounting also is quite difficult thing, that have even just can't dismantle, go cutting with electric welding machine, finally result in greater loss.Its reason is exactly that the groove of axle sleeve and between centers connecting part at the coupling shaft place of loader and excavator use cooperates loose untight rubber ring with the two, can not prevent from effectively that lubricant oil is in operation to be extruded with sand and dust not suck.
Summary of the invention
The purpose of this utility model just provides a kind of axle and axle sleeve connecting part lubricant oil at loader excavator coupling shaft place of effectively preventing and does not leak, and does not suck the dustproof oil sealing that protects of dust.
The concrete scheme that realizes above-mentioned purpose is as follows:
A kind of loader excavator coupling shaft is dustproof to protect oil sealing, is on the axle of the junction of coupling shaft and shaft room and makes the annular boss of projection on the axle sleeve respectively, rotates the installation oil seal cover on annular boss.
Oil seal cover is made of two semicircular ring bodies, and the connecting part of two semi-round ring shape bodies is shaped on engaging lug, has attachment hole.Be spirally connected by bolt.Have the annular groove that asphalt felt is installed in the oil seal cover, in asphalt felt is housed, constituted being rotationally connected between two boss on oil seal cover and the coupling shaft.
On two annular boss on coupling shaft axle sleeve and the axle, the asphalt felt in the oil seal cover is tight with two annular boss cutting ferrules with the oil seal cover encapsulation, and is rotationally connected with the formation of two boss roller-way faces.Loader or excavator at work, the lubricant oil of extruding in the reciprocal rotation process of axle sleeve and between centers can not leak outside the coupling shaft but be limited in by in the axle sleeve of the asphalt felt of oil seal cover sealing, the sand and dust of outside are in also zero-clearance can be gone into.Realized preventing dust and protecting oily effect.Because asphalt felt has adsorbed the lubricant oil that axle and shaft room are extruded, increased the lubrication of asphalt felt and annular boss surface of contact, to prolonging in working life of asphalt felt.So, solved loader and excavator and wanted at work often to inject lubricant oil and a large amount of problem that consumes lubricant oil, thereby reached the reduction user cost to coupling shaft and shaft room; Can use and non-refuelling for a long time because add a lubricant oil, save and shut down the working efficiency that has improved loader and excavator again consuming time of refueling several times every day.
Description of drawings
Fig. 1 constitutes the dustproof semi-round ring shape body structure schematic representation that protects the oil seal cover of oil sealing;
Fig. 2 is a semicircular ring body worm's eye view;
Fig. 3 is the coupling shaft of loader or excavator and two annular boss structural representations that the axle sleeve junction makes;
Fig. 4 is the scheme of installation of oil seal cover in coupling shaft convex platform position.
Embodiment
Below in conjunction with accompanying drawing,, scheme is described further as embodiment.
With reference to Fig. 1,2,3,4, oil seal cover 8 is by two semi-circular ring, 2 synthetic circular forming, the junction of two semi-circular ring 2 has made engaging lug 3, has attachment hole 1 on the engaging lug, on the boss of making on the axle sleeve 5 of being convenient to be installed in loader or excavator coupling shaft and the axle 76.The semi-circular ring inner ring surface has annular groove 4, is used for installing in groove asphalt felt.The width of annular groove 4 is set with the size of two boss on coupling shaft and the axle sleeve and span thereof, makes the asphalt felts in the annular groove 4 of packing into can 6 liang of outsides of boss cutting ferrule is tight.The degree of depth of annular groove 4 will guarantee that oil seal cover 8 is installed on two boss 6 the back asphalt felt and is obturaged in the gap between two annular boss 6 and two boss, and simultaneously, when coupling shaft was back and forth rotated, boss 6 did not damage asphalt felt.Coupling shaft is rotatably assorted by axle sleeve 5 and axle 7 and constitutes, and adds lubricant oil and realize the power of reducing friction when axle rotates in axle sleeve 5 in axle sleeve.When loader or excavator work, the rotation that axle 7 and axle sleeve are 5 is back and forth shuttle.Rotating speed is low, but the lubricant oil in the axle sleeve outwards extrudes because of rotatory force, when going back to, can be inhaled into a large amount of the loss on a small quantity again.After having made boss 6 on the coupling shaft and oil seal cover 8 be installed, owing to the effect of asphalt felt is blocked from 6 lubricant oil of extruding of two boss, make it to return in the axle sleeve, avoid running off.
With reference to Fig. 3,4, during installation, two semi-circular ring 2 are fastened on two boss 6, fastening by the attachment hole on the engaging lug 31 with bolt is the dustproof oil sealing that protects of a ring.Realized neither hindering coupling shaft reciprocal rotation at work, lubricant oil can be limited in the axle sleeve 5 again, can not be extruded, a large amount of sand and dust that produce in the construction environment also advance less than in the connecting bushing 5.So the lubricating oil consumption of loader or excavator will be reduced greatly, adding once oil can use for a long time, avoids injecting the trouble of lubricant oil and the loss that parking delays work in one day for several times in axle sleeve, has also reduced the trouble of laid-up, has saved economic spending.
Claims (4)
1, a kind of loader excavator coupling shaft is dustproof protects oil sealing, it is characterized in that going up the annular boss (6) that reaches making projection respectively on the axle sleeve at the axle of the junction between coupling shaft (7) and axle sleeve (5), goes up at annular boss (6) and rotates installation oil seal cover (8).
2, the dustproof oil sealing that protects of a kind of loader excavator coupling shaft according to claim 1, it is characterized in that oil seal cover (8) is made of two semicircular ring bodies (2), the connecting part of each semicircular ring body (2) is shaped on engaging lug (3), has attachment hole (1), is spirally connected by bolt.
3, a kind of loader excavator coupling shaft according to claim 1 and 2 is dustproof protects oil sealing, it is characterized in that having in the oil seal cover (8) annular groove (4) that asphalt felt is installed, in asphalt felt is housed.
4, the dustproof oil sealing that protects of a kind of loader excavator coupling shaft according to claim 1, it is characterized in that oil seal cover (8) encapsulation on two annular boss (6) on coupling shaft axle sleeve (5) and the axle (7), asphalt felt in the oil seal cover (8) is tight with two annular boss (6) cutting ferrule, and is rotationally connected with the formation of two boss (6) roller-way face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820080929XU CN201173291Y (en) | 2008-02-29 | 2008-02-29 | Connection shaft dust proof oil seal for loading apparatus and digging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820080929XU CN201173291Y (en) | 2008-02-29 | 2008-02-29 | Connection shaft dust proof oil seal for loading apparatus and digging machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201173291Y true CN201173291Y (en) | 2008-12-31 |
Family
ID=40200411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820080929XU Expired - Fee Related CN201173291Y (en) | 2008-02-29 | 2008-02-29 | Connection shaft dust proof oil seal for loading apparatus and digging machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201173291Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447428A (en) * | 2018-05-16 | 2018-08-24 | 清远博云软件有限公司 | A kind of tourist attractions content displaying platform |
-
2008
- 2008-02-29 CN CNU200820080929XU patent/CN201173291Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447428A (en) * | 2018-05-16 | 2018-08-24 | 清远博云软件有限公司 | A kind of tourist attractions content displaying platform |
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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: 20081231 Termination date: 20130229 |