CN207201239U - 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
- CN207201239U CN207201239U CN201721181287.8U CN201721181287U CN207201239U CN 207201239 U CN207201239 U CN 207201239U CN 201721181287 U CN201721181287 U CN 201721181287U CN 207201239 U CN207201239 U CN 207201239U
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- Prior art keywords
- guard housing
- sealing
- sealing ring
- inwall
- sealing elements
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- Sealing Of Bearings (AREA)
Abstract
The utility model 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 utility model 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
It the utility model is related to the sealing device of rotary cultivator, more particularly to rotary cultivator upper slitter axle bearing.
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, the purpose of this utility model is that provide one kind is used in rotavator knife using two sealing ring laminating types
Sealing device on bearing housing, it can effectively prevent dryness from entering bearing lubrication position with moist soil and weeds, can prolong significantly
Long maintenance phase and the complete machine service life of rotary cultivator.
The technical solution adopted in the utility model 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, its inwall middle part or bottom
Portion is provided 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 in
Circular central 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 circle
Shape and structure, it is installed in the interior anti-guard housing and the outer anti-guard housing inwall, and elastic sealing elements are equal in bearing block bolt
It is even that elasticity is produced when tightening；The sealing ring is circle ring-type structure, has ring-type gradient or annular groove, institute on the outer wall of sealing ring
Stating sealing ring has two, wherein a sealing ring is embedded in outer anti-guard housing inwall fixed, another sealing by elastic sealing elements
Ring is embedded in interior anti-guard housing inwall by elastic sealing elements, and with cutter shaft or power output shaft synchronous rotary, above-mentioned two
The operative end surface of sealing ring is brought into close contact to form combination sealing under elastic sealing elements axial thrust.
Elastic sealing elements described in the utility model are O-shaped cushion rubbers, or the cushion rubber with shirt rim, or special-shaped cushion rubber, or spring
Formula structure etc., or other elastic sealing elements that axial thrust is produced by compression.
Outer anti-guard housing described in the utility model and interior anti-guard housing directly can use lathe on bearing block body and cutter shaft
Process.
The utility model 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 make
Just needed to change outside framework oil seal and bearing with some months, it is early at cutter shaft shaft head seal after frequently changing bearing several times for a year or two
Corrosion can't bear, and that is thrown away in rural area is worth without reparative regeneration again unfortunately, faces complete machine and scraps and brings 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 utility model is using quiet, dynamic sealing side of the two sealing ring laminating types sealing on rotavator knife bearing housing
Formula, its is simple in construction, sealed reliable, cheap, durable in use, can effectively prevent dryness from entering axle with moist soil and weeds
Lubricant housings is held, greatly improves cutter shaft bearing service life, 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 utility model will reduce the maintenance probability and use cost of rotary cultivator to peasant household, highly effective to solve the long-term face of peasant household
The puzzlement faced.
Brief description of the drawings
Fig. 1 is structure chart of the present utility model；
Fig. 2 is specific implementation figure of the present utility model；
Fig. 3 is sealing ring working state schematic representation of the present utility model；
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 packing
Element, 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 gear
Oily shell.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
It was found from Fig. 1 ~ 3, the utility model is a kind of rotary tiller shaft associated sealing arrangement for bearings, including interior anti-guard housing 2, outer anti-
Guard housing 8, sealing 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,
Cylindrical upper and solid welding connection of the interior anti-guard housing loaded on cutter shaft spindle nose；The rounded middle part of inwall or bottom of the outer anti-guard housing
Convex rank is provided with, is installed in the inner circle of bearing block 6 and solid welding connects；The elastic sealing elements are toroidal structure, installation
In described in anti-guard housing and described outer anti-guard housing inwall, when bearing block bolt is uniformly tightened, elastic sealing elements are pressed
Contracting produces elasticity.The sealing ring is circle ring-type structure, and ring-type gradient or annular groove are provided with 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, is static sealing ring
4, another sealing ring is embedded in interior anti-guard housing inwall with cutter shaft or power output shaft synchronous rotary by elastic sealing elements,
For dynamic sealing ring 3, above-mentioned two sealing ring produces axial thrust by elastic sealing elements makes stationary ring and rotating ring operative end surface tight
Closely connected conjunction forms combination sealing.
Elastic sealing elements described in the utility model are toroidal structure, are O-shaped cushion rubbers, or the cushion rubber with shirt rim, or
Special-shaped cushion rubber, or spring structure etc..It is installed in described interior anti-guard housing and described outer anti-guard housing inwall, in bearing block spiral shell
Elastic sealing elements produce elasticity by compression when bolt is uniformly tightened, by the elastic by static sealing ring 4 and dynamic sealing of itself
Ring 3 is brought into close contact, and reaches sealing effectiveness, at the same its effect also make it is closely knit between interior anti-guard housing 2 and dynamic sealing ring 3,
Make closely knit between outer anti-guard housing 8 and static sealing ring 4.
Anti- guard housing directly can also be come out on bearing block body with lathe process outside the utility model.Outer anti-guard housing 8 is pacified
In inner circle loaded on bearing block 6 and solid welding connects, and installs upper bearing (metal) 7 by bearing block 6 and is fixed with jump ring 9, covers protective cover 12,
Assembling is uniformly tightened by pilot hole uniform on bearing block 6 with the bolt 10 to be fixedly connected on rotary cultivator.
Anti- guard housing, outer anti-guard housing are all single parts in the utility model, and interior anti-guard housing also may be used in actually implementing
To be directly process at the both ends of cutter shaft main body 1.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 utility model.
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 utility model.
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 circle, 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 solutions of the utility model one kind therein, as far as possible
More specific detailed description, but it is not intended that the utility model patent model have been carried out to the utility model with reference to preferred embodiment
The limitation enclosed.The person skilled of this area, which should be appreciated that, is not departing from the utility model using elastic sealing elements by two
Under the premise of the sealing principle that sealing ring operative end surface is brought into close contact, some deformations and change can also be made, this belongs to this reality
Among new protection domain.
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 |
|---|---|---|---|
| CN201721181287.8U CN207201239U (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 |
|---|---|---|---|
| CN201721181287.8U CN207201239U (en) | 2017-09-15 | 2017-09-15 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207201239U true CN207201239U (en) | 2018-04-10 |
Family
ID=61825091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721181287.8U Active CN207201239U (en) | 2017-09-15 | 2017-09-15 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
Country Status (1)
| Country | Link |
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| CN (1) | CN207201239U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107409500A (en) * | 2017-09-15 | 2017-12-01 | 何岸雄 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
| CN108718544A (en) * | 2018-08-14 | 2018-11-02 | 湖北双羽机械科技股份有限公司 | A kind of rotary cultivator bearing cover with conjuncted corner plough |
-
2017
- 2017-09-15 CN CN201721181287.8U patent/CN207201239U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107409500A (en) * | 2017-09-15 | 2017-12-01 | 何岸雄 | A kind of rotary tiller shaft associated sealing arrangement for bearings |
| CN108718544A (en) * | 2018-08-14 | 2018-11-02 | 湖北双羽机械科技股份有限公司 | A kind of rotary cultivator bearing cover with conjuncted corner plough |
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