CN107409500A - A kind of rotary tiller shaft associated sealing arrangement for bearings - Google Patents
A kind of rotary tiller shaft associated sealing arrangement for bearings Download PDFInfo
- Publication number
- CN107409500A CN107409500A CN201710830315.2A CN201710830315A CN107409500A CN 107409500 A CN107409500 A CN 107409500A CN 201710830315 A CN201710830315 A CN 201710830315A CN 107409500 A CN107409500 A CN 107409500A
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- CN
- China
- Prior art keywords
- guard housing
- sealing
- sealing ring
- inwall
- sealing elements
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/12—Arrangement of the tools; Screening of the tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
- Sealing Of Bearings (AREA)
Abstract
The invention discloses a kind of rotary tiller shaft associated sealing arrangement for bearings, including interior anti-guard housing, outer anti-guard housing, sealing ring and elastic sealing elements, the interior anti-guard housing is circular configuration, and its inwall middle part or bottom are provided with convex rank；The rounded middle part of inwall or bottom of the outer anti-guard housing are provided with convex rank；The elastic sealing elements are installed in the interior anti-guard housing and the outer anti-guard housing inwall；To there is two, the operative end surface of two sealing rings is brought into close contact to form combination sealing the sealing ring under elastic sealing elements axial thrust.The sealing means that the present invention is brought into close contact using two sealing ring operative end surfaces are with rotavator knife bearing housing, its is simple in construction, sealed reliable, it is cheap, the characteristics of long lifespan, it can effectively prevent dryness from entering bearing lubrication position with moist soil and weeds, greatly improve cutter shaft bearing service life, and can the long-term normal operation in the environment of extreme.
Description
Technical field
The present invention relates to rotary cultivator, the sealing device of cutter shaft bearing block more particularly on rotary cultivator.
Background technology
Rotary cultivator is that cultivation machinery is often used in a kind of field by tractor dynamic power driving, has plough, the operation effect of rake unification
Fruit, rotary tillage can reach the purpose on a hack level land, and can effectively cut off crop tuber root stubble and be turned over and is embedded in soil, plough
Earth's surface is loosely flat afterwards is easy to seeding operation.In the prior art, rotary cultivator changes in spite of a variety of styles, but all be unable to do without knife
Axle rotary operation, for cutter shaft for a long time in various soil with being worked in weeds, environment is very complicated, and prior art is nearly all to use
Outside framework oil seal blocks water hindering mud or hindered foreign matter, and the root stubble outside framework oil seal shirt rim that the outside framework oil seal on cutter shaft meets hard thing or hard spot holds
Easily it is damaged, the place of bearing connection is easily accessible mud and soil, causes bearing premature wear and spindle nose rust corrosion, causes
Rotary tillage machine can not normal work, this phenomenon paddy-field-working rotary cultivator is especially prominent.
Existing rotavator knife bearing housing Sealing Technology is sealed using outside framework oil seal, its hard thing easily wound by cutter shaft
Damage, agricultural were typically divided to for two seasons, and rotary cultivator shelves operation again after a period of time, also can into the mud containing spiral shell in cutter shaft protective cover
Become withered hard, with the rotation of cutter shaft, the soil of dryness containing spiral shell is caused to hurt to outside framework oil seal shirt rim in protective cover, and sealing is lost
Oil leak is imitated, enters mud water inlet and causes rotary tillage machine can not normal use.At present on the market common rotary cultivator in paddy field and nonirrigated farmland work
Make that three or five hundred hours need to just change outside framework oil seal and cutter shaft bearing could normal operation again.When changing oil sealing and bearing several times
Afterwards, cutter shaft spindle nose already can't bear by corrosion, throw away unfortunately again without reparative regeneration be worth, complete machine face scrap brought to peasant household it is a series of
Puzzlement.
The content of the invention
For above-mentioned existing as conventional rotavator knife axle bearing uses outside framework oil seal formula Sealing Technology, working service cost height
Made troubles to peasant household, rotary tiller shaft axle is used in using two sealing ring laminating types it is an object of the invention to provide one kind
Sealing device in bearing, it can effectively prevent dryness from entering bearing lubrication position with moist soil and weeds, dimension can be greatly prolonged
Shield phase and the complete machine service life of rotary cultivator.
The technical solution adopted by the present invention is：A kind of rotary tiller shaft associated sealing arrangement for bearings, it is characterised in that：Including interior anti-
Guard housing, outer anti-guard housing, sealing ring and elastic sealing elements, the interior anti-guard housing are circular configuration, and its inwall middle part or bottom are set
It is equipped with convex rank, cylindrical upper and solid welding connection of the interior anti-guard housing loaded on cutter shaft spindle nose；The inwall of the outer anti-guard housing is rounded
Middle part or bottom are provided with convex rank, are installed in the inner circle of bearing block and solid welding connects；The elastic sealing elements are toroidal
Structure, it is installed in the interior anti-guard housing and the outer anti-guard housing inwall, and elastic sealing elements are uniformly twisted in bearing block bolt
Elasticity is produced when tight；The sealing ring is circle ring-type structure, has ring-type gradient or annular groove on the outer wall of sealing ring, described close
Seal ring has two, is fixed wherein a sealing ring is embedded in outer anti-guard housing inwall by elastic sealing elements, and another sealing ring leads to
Elastic sealing elements are crossed to be embedded in interior anti-guard housing inwall, and with cutter shaft or power output shaft synchronous rotary, above-mentioned two sealing
The operative end surface of ring is brought into close contact to form combination sealing under elastic sealing elements axial thrust.
Elastic sealing elements of the present invention are O-shaped cushion rubbers, or the cushion rubber with shirt rim, or special-shaped cushion rubber, or spring knot
Structure etc., or other elastic sealing elements that axial thrust is produced by compression.
Outer anti-guard housing of the present invention and interior anti-guard housing directly can use lathe process on bearing block body and cutter shaft
Out.
The present invention compared with prior art the advantages of be：
Because existing rotavator knife axle bearing is generally sealed using skeleton-type oil seal, famous brand rotary cultivator typically can only also use several
Outside framework oil seal and bearing need to just be changed within individual month, after frequently changing bearing several times for a year or two, be become rusty already at cutter shaft shaft head seal
Erosion can't bear, and that is thrown away in rural area is worth without reparative regeneration again unfortunately, faces complete machine and scraps and bring a series of puzzlement to peasant household, therefore
It is high to be badly in need of a kind of sealing property, cost is cheap, and maintenance times are few, the rotary cultivator of service life length.
The present invention uses quiet, dynamic sealing means of the two sealing ring laminating types sealing on rotavator knife bearing housing,
Its is simple in construction, sealed reliable, cheap, durable in use, can effectively prevent dryness from entering bearing with moist soil and weeds
Lubricant housings, cutter shaft bearing service life is greatly improved, and can the long-term normal operation in the environment of extreme.
The present inventor is using the sealing device of the present invention in paddy field and nonirrigated farmland ploughing and weeding, and in farmland, fieldwork surpasses five
Thousand hours, check bearing seal situation in passing in routine maintenance cutter shaft, bearing working in order, almost it is intact such as
Just, the present invention will reduce the maintenance probability and use cost of rotary cultivator to peasant household, highly effective to solve what peasant household faced for a long time
Puzzlement.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the specific implementation figure of the present invention；
Fig. 3 is the sealing ring working state schematic representation of the present invention；
In figure, 1 is cutter shaft main body, and 2 be interior anti-guard housing, and 3 be dynamic sealing ring, and 4 be static sealing ring, and 5 be elastic sealing elements,
6 be bearing block, and 7 be bearing, and 8 be outer anti-guard housing, and 9 be bearing clip, and 10 be fixing bolt, and 11 be pouring orifice, and 12 be that gear oil is outer
Shell.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
It was found from Fig. 1 ~ 3, the present invention is a kind of rotary tiller shaft associated sealing arrangement for bearings, including interior anti-guard housing 2, outer anti-guard housing 8, close
Seal ring, elastic sealing elements 5, the interior anti-guard housing are circular configuration, and its inwall middle part or bottom are provided with convex rank, described interior anti-
Cylindrical upper and solid welding connection of the guard housing loaded on cutter shaft spindle nose；The rounded middle part of inwall or bottom of the outer anti-guard housing are provided with convex
Rank, is installed in the inner circle of bearing block 6 and solid welding connects；The elastic sealing elements are toroidal structure, are installed on described
In interior anti-guard housing and described outer anti-guard housing inwall, when bearing block bolt is uniformly tightened, elastic sealing elements produce bullet by compression
Property.The sealing ring is circle ring-type structure, is provided with ring-type gradient or annular groove on the outer wall of sealing ring, the sealing ring has two
It is individual, fixed wherein a sealing ring is embedded in outer anti-guard housing inwall by elastic sealing elements, be static sealing ring 4, Ling Yimi
Seal ring is embedded in interior anti-guard housing inwall with cutter shaft or power output shaft synchronous rotary by elastic sealing elements, close for dynamic
Seal ring 3, above-mentioned two sealing ring produces axial thrust by elastic sealing elements makes stationary ring be brought into close contact shape with rotating ring operative end surface
Into combination sealing.
Elastic sealing elements of the present invention are toroidal structure, are O-shaped cushion rubbers, or the cushion rubber with shirt rim, or abnormity
Cushion rubber, or spring structure etc..It is installed in described interior anti-guard housing and described outer anti-guard housing inwall, it is equal in bearing block bolt
Even elastic sealing elements when tightening produce elasticity by compression, by the elasticity of itself that static sealing ring 4 and dynamic sealing ring 3 is tight
Closely connected conjunction, reaches sealing effectiveness, while its effect also makes closely knit between interior anti-guard housing 2 and dynamic sealing ring 3, also makes outer anti-
It is closely knit between guard housing 8 and static sealing ring 4.
Outer anti-guard housing of the invention directly can also be come out on bearing block body with lathe process.Outer anti-guard housing 8 is installed on
In the inner circle of bearing block 6 and solid welding connects, and installs upper bearing (metal) 7 by bearing block 6 and is fixed with jump ring 9, protective cover 12 is covered, by axle
Uniform pilot hole is uniformly tightened assembling with the bolt 10 and is fixedly connected on rotary cultivator in bearing 6.
Anti- guard housing, outer anti-guard housing are all single parts in the present invention, and interior anti-guard housing can also be in actually implementing
The both ends of cutter shaft main body 1 are directly process.Outer anti-guard housing can also be directly process on cutter shaft bearing main body.
In the present embodiment, sealing ring uses outer round belt oblique slot type sealing ring, can also be in actual use
Cylindrical is slot type sealing ring, can more use the sealing ring of other shapes, no matter using what shape, as long as what two rings were bonded
Sealing means are all within the scope of the invention.
In the present embodiment, elastic sealing elements use O shape cushion rubbers, are respectively sleeved at two sealing ring circle outers
Skewed slot on, elastic sealing elements can also use the cushion rubber with shirt rim and special-shaped cushion rubber, more can use band spring or other
Object with elasticity, compression, which produces the sealing means that two sealing rings are bonded by axial thrust, after its effect is mounted all is
Within the scope of the invention.
Installation method：Interior anti-guard housing is welded on 1 liang of end surface of cutter shaft main body, outer anti-guard housing is then installed into cutter shaft
In the bearing block of the right and left of main body 1, then by a seal ring set in O-shaped cushion rubber inner circle, the above-mentioned assembly packaged is pressed
It is pressed into interior anti-guard housing；It is exactly foregoing rotating ring, then by another seal ring set in another O-shaped cushion rubber Inner circles, by
Assembly through packaging, which is pressed, is pressed into outer anti-guard housing, and it is exactly foregoing stationary ring, then cutter shaft bearing block is installed into feed shaft master
Body 1, then bearing is installed into cutter shaft bearing block, by clamping clip on the shaft pertaining of cutter shaft main body 1, cover the oily shell of gear and tighten bolt
Lubricating oil is filled from oil filler.
Finally illustrate, above example, which is only expressed, illustrates technical solution of the present invention one kind therein, as far as possible reference
Preferred embodiment has carried out more specific detailed description, but it is not intended that the limitation of the scope of the claims of the present invention to the present invention.This
The person skilled in field should be appreciated that do not depart from the present invention using elastic sealing elements two sealing ring operative end surfaces are tight
Under the premise of the sealing principle of closely connected conjunction, some deformations and change can also be made, this is belonged among protection scope of the present invention.
Claims (3)
- A kind of 1. rotary tiller shaft associated sealing arrangement for bearings, it is characterised in that：Including interior anti-guard housing, outer anti-guard housing, sealing ring and bullet Property potted component, the interior anti-guard housing is circular configuration, and in the middle part of its inwall or bottom is provided with convex rank, and the interior anti-guard housing is loaded on The cylindrical upper and solid welding connection of cutter shaft spindle nose；The rounded middle part of inwall or bottom of the outer anti-guard housing are provided with convex rank, installation In simultaneously solid welding connection in the inner circle of bearing block；The elastic sealing elements are toroidal structure, be installed on the interior anti-guard housing and In the outer anti-guard housing inwall, and elastic sealing elements produce elasticity when bearing block bolt is uniformly tightened；The sealing ring is Circle ring-type structure, there are ring-type gradient or annular groove on the outer wall of sealing ring, the sealing ring there are two, wherein a sealing ring leads to Cross elastic sealing elements and be embedded in outer anti-guard housing inwall fixed, another sealing ring is embedded in interior protection by elastic sealing elements In seat inwall, and with cutter shaft or power output shaft synchronous rotary, the operative end surface of above-mentioned two sealing ring is in elastic sealing elements It is brought into close contact to form combination sealing under axial thrust.
- 2. rotary tiller shaft associated sealing arrangement for bearings according to claim 1, it is characterised in that：The elastic sealing elements are O-shaped cushion rubber, or the cushion rubber with shirt rim, or special-shaped cushion rubber, or spring structure.
- 3. rotary tiller shaft associated sealing arrangement for bearings according to claim 1, it is characterised in that：The outer anti-guard housing is direct Come out on bearing block body with lathe process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830315.2A CN107409500A (en) | 2017-09-15 | 2017-09-15 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710830315.2A CN107409500A (en) | 2017-09-15 | 2017-09-15 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107409500A true CN107409500A (en) | 2017-12-01 |
Family
ID=60433027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710830315.2A Pending CN107409500A (en) | 2017-09-15 | 2017-09-15 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107409500A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109446A (en) * | 2007-08-16 | 2008-01-23 | 广州广重企业集团有限公司 | Sealing device of disk shaped knife |
| CN202946671U (en) * | 2012-11-14 | 2013-05-22 | 天津大学 | Mixer sealing device suitable for high-speed revolution |
| CN202950557U (en) * | 2010-09-19 | 2013-05-29 | 康奈尔有限公司 | Bowl cover sealing component of food processor |
| CN203146404U (en) * | 2013-04-17 | 2013-08-21 | 李银玉 | Mechanical sealing structure |
| CN104676006A (en) * | 2015-03-06 | 2015-06-03 | 李阳铭 | Floating seal device and deep-ploughing powder ridger using floating seal device |
| CN104712766A (en) * | 2015-03-06 | 2015-06-17 | 李阳铭 | Labyrinth type bearing closing device |
| CN204739221U (en) * | 2015-05-08 | 2015-11-04 | 西安德通振动搅拌技术有限公司 | Mixer shaft end sealing device |
| CN205793980U (en) * | 2016-07-15 | 2016-12-14 | 陈立春 | Rotavator knife bearing housing MULTIPLE COMPOSITE dust-proof sealing device |
| CN207201239U (en) * | 2017-09-15 | 2018-04-10 | 何岸雄 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
-
2017
- 2017-09-15 CN CN201710830315.2A patent/CN107409500A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109446A (en) * | 2007-08-16 | 2008-01-23 | 广州广重企业集团有限公司 | Sealing device of disk shaped knife |
| CN202950557U (en) * | 2010-09-19 | 2013-05-29 | 康奈尔有限公司 | Bowl cover sealing component of food processor |
| CN202946671U (en) * | 2012-11-14 | 2013-05-22 | 天津大学 | Mixer sealing device suitable for high-speed revolution |
| CN203146404U (en) * | 2013-04-17 | 2013-08-21 | 李银玉 | Mechanical sealing structure |
| CN104676006A (en) * | 2015-03-06 | 2015-06-03 | 李阳铭 | Floating seal device and deep-ploughing powder ridger using floating seal device |
| CN104712766A (en) * | 2015-03-06 | 2015-06-17 | 李阳铭 | Labyrinth type bearing closing device |
| CN204739221U (en) * | 2015-05-08 | 2015-11-04 | 西安德通振动搅拌技术有限公司 | Mixer shaft end sealing device |
| CN205793980U (en) * | 2016-07-15 | 2016-12-14 | 陈立春 | Rotavator knife bearing housing MULTIPLE COMPOSITE dust-proof sealing device |
| CN207201239U (en) * | 2017-09-15 | 2018-04-10 | 何岸雄 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
|
| WD01 | Invention patent application deemed withdrawn after publication |