CN206442667U - A kind of rotavator knife axle assembly - Google Patents
A kind of rotavator knife axle assembly Download PDFInfo
- Publication number
- CN206442667U CN206442667U CN201621481777.5U CN201621481777U CN206442667U CN 206442667 U CN206442667 U CN 206442667U CN 201621481777 U CN201621481777 U CN 201621481777U CN 206442667 U CN206442667 U CN 206442667U
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- China
- Prior art keywords
- blades
- tool rest
- blade
- row
- axle assembly
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Abstract
The utility model discloses a kind of rotavator knife axle assembly, including cutter shaft, tool rest and set of blades；The spindle drive connection of the cutter shaft and engine, longitudinal measure has number row's tool rest on the outer surface of cutter shaft, often arranges tool rest comprising three tool rests on cutter shaft periphery even cloth, the opening direction of opening direction row's tool rest adjacent thereto of any row's tool rest is arranged in dislocation；Set of blades is fixedly mounted by fix bar and bolt on tool rest；The set of blades is made up of three coaxial blades, and two panels bending type blade is oppositely arranged, and a plane blade is set between two panels bending type blade, and pad is set between bending type blade and plane blade.The utility model is simple in construction, reasonable in design, and cutting effect is significantly improved, and grinding particle size is uniform, and blade is not easy to wear, and service life is long, reduces cost.
Description
Technical field
The utility model is related to a kind of rotavator knife axle assembly, belongs to technical field of agricultural mechanical equipment.
Background technology
Rotary cultivator be complete to plough with tractor, the cultivation machinery of rake operation, rotary cultivator has that hack ability is strong, plough after
The features such as earth's surface is flat, while the root stubble being embedded in below earth's surface can be shredded, one-stop operation can make soil in small, broken bits, clay fertilizer blending
Uniformly, the requirement that nonirrigated farmland sowing or paddy field are planted is reached, is conducive to striving for farming season, improves work efficiency, and tractor can be made full use of
Power, thus be widely used.
Rotavator knife axle assembly is one of most important part of rotary cultivator, including cutter shaft, tool rest and blade；Rotary tiller shaft
Assembly is arranged in the frame of rotary cultivator by short axle or bearing block, and blade is arranged on cutter shaft by tool rest；During work, cutter shaft
Band cutting blade rotation, realizes the cutting for ploughing soil and stalk.But, the cutting efficiency of cutter shaft assembly common at present is low, cuts
Cut that effect is poor, the stalk after cutting is different in size, the uniformity is poor, or even leakage occur and cut phenomenon, influence the site preparation in later stage with broadcasting
Kind；And blade easily weares and teares, service life is short to be changed, it is necessary to usually shut down, and is not only reduced operating efficiency, is also increased work
Make cost.
Utility model content
To solve the above mentioned problem that prior art is present, the purpose of this utility model be to provide a kind of operating efficiency it is high,
Good cutting effect, not easy to wear, service life length rotavator knife axle assembly.
In order to solve the above technical problems, the technical scheme that the utility model is used is：
A kind of rotavator knife axle assembly, including cutter shaft, tool rest and set of blades；The spindle drive of the cutter shaft and engine connects
Connect, longitudinal measure there are number row's tool rests on the outer surface of cutter shaft, often arrange tool rest comprising even cloth three groups of tool rests on cutter shaft periphery,
The set of blades installation direction of set of blades installation direction row's tool rest adjacent thereto of any group of tool rest is arranged in dislocation；The set of blades
It is fixedly mounted on by fix bar on tool rest；The set of blades is made up of three coaxial blades, and two panels bending type blade is reverse
Set, a plane blade is set between two panels bending type blade, pad is set between bending type blade and plane blade
Piece.
Further improvement of the utility model is：Every group of tool rest is made up of two pears tool rests being correspondingly arranged, pears
Tool rest bottom is welded on the outer surface of cutter shaft, and the gap for accommodating one group of set of blades is formed between two pears tool rests；It is described two
Correspondence offers the through hole passed through for fix bar on pears tool rest, and wear-resistant sleeve is also equipped with the inside of through hole.
Further improvement of the utility model is：The fix bar is double threaded screw, and fix bar is also opened at screw thread
Provided with pin-and-hole.
Further improvement of the utility model is：The fix bar is mushroom head fix bar, and its tail end offers pin-and-hole.
Further improvement of the utility model is：Set of blades installation direction row's knife adjacent thereto of any row's tool rest
The set of blades installation direction of seat is in 40 ° of angles.
Further improvement of the utility model is：The set of blades installation direction and the 4th row's tool rest of the first row tool rest
Set of blades installation direction overlap, the set of blades installation direction of second row tool rest and the set of blades installation direction weight of the 5th row's tool rest
Close, the set of blades installation direction of the 3rd row's tool rest is overlapped with the set of blades installation direction of the 6th row's tool rest.
Further improvement of the utility model is：The blade includes offering on installation portion, blade, installation portion and is used for
Through the mounting hole of fix bar, blade is shaped as rectangle；In 160 ° between the installation portion and blade of the bending type blade
Angle；Powder metallurgy wearing layer is welded on the work side of blade cutting edge.
Further improvement of the utility model is：The thickness of the powder metallurgy wearing layer is not less than 5mm；Each blade
The powder metallurgy wearing layer of three blades in group is located at homonymy.
Further improvement of the utility model is：The blade is Cr steel blades.
By adopting the above-described technical solution, the technological progress that the utility model is obtained is：
The utility model provides a kind of rotavator knife axle assembly, and reasonable in design, cutting effect is significantly improved, and crushes
Epigranular, and blade is not easy to wear, and service life is long, reduces cost.The utility model is spaced dislocation peace on cutter shaft
Equipped with multiple rows of set of blades, often arrange set of blades and include along three uniform set of blades of cutter shaft, each set of blades by blade direction not
Same three blades composition, so as to be effectively increased blade and stalk, the contact area in soil, enhances cutting efficiency, can be by straw
Stalk, soil block are uniformly crushed, it is to avoid the leakage usually occurred during hilted broadsword is cut and cuts phenomenon less, and cutting effect is significantly improved.
Blade used in the utility model uses the 40Cr steel plates with high strength and high hardness to make, with extraordinary
Wearability and intensity, are unlikely to deform or ftracture, service life significantly extends, reduce number of changing knife, substantially increase production effect
Rate；The powder metallurgy wearing layer welded on the work side of blade cutting edge is made up of chromium nickel cobalt manganese alloy powder, molten by laser
Be welded on blade, powder metallurgy wearing layer has high intensity and high-wearing feature, its wear-resisting intensity be 2 times of general steel plate with
On, and be not easy to burst apart, so as to further increase the anti-wear performance and intensity of blade.
The set of blades is fixed on pears tool rest by fix bar, and fix bar on the contact surface of pears tool rest with setting wear-resisting
Set, it is to avoid equipment operation in fix bar stress, to tool rest produce abrasion, more allowing blade replacement is only needed during use, without more
Tool changing axle assembly, substantially increases the service life of complete machine, while operator is easier maintenance.
Dual fixation is carried out by screw thread and split pin between set of blades and pears tool rest, thread looseness is prevented effectively from, kept
The stabilization of set of blades, the dynamics cut for rotary tillage provides powerful guarantee.
Brief description of the drawings
Fig. 1 is side structure schematic view of the present utility model；
Fig. 2 is the schematic side view of the single tool rest of the utility model；
Fig. 3 is set of blades and the first attachment structure schematic diagram of tool rest；
Fig. 4 is set of blades and second of attachment structure schematic diagram of tool rest；
Fig. 5 is the structural representation of the utility model plane blade；
Fig. 6 regards schematic diagram for Fig. 5 right side；
Fig. 7 is the structural representation of the utility model bending type blade；
Fig. 8 regards schematic diagram for Fig. 7 right side.
Wherein, 1, cutter shaft, 2, pears tool rest, 21, wear-resistant sleeve, 3, blade, 31, installation portion, 32, blade, 33, powder metallurgy it is resistance to
Grind layer, 34, mounting hole, 35, pad, 36, fix bar, 37, nut, 38, split pin.
Embodiment
Describe the utility model in detail below with reference to the accompanying drawings.
A kind of rotavator knife axle assembly, as shown in Fig. 1 ~ Fig. 2, including cutter shaft 1, tool rest and set of blades.The cutter shaft 1 and hair
The spindle drive connection of motivation, longitudinal measure has number row's tool rest on the outer surface of cutter shaft 1, and often row's tool rest, which is included, is distributed on cutter shaft
Three groups of tool rests on 1 periphery, every group of tool rest is made up of two pears tool rests 2 being correspondingly arranged, and is formed between described two pears tool rests 2
Accommodate the gap of one group of set of blades；Correspondence offers the through hole passed through for fix bar 36 on described two pears tool rests, described
Wear-resistant sleeve 21 is installed on the inside of through hole, wear-resistant sleeve 21 is in close contact with fix bar 36.Set of blades is fixed by fix bar 36 pacifies
Between two pears tool rests 2.
The set of blades installation direction of set of blades installation direction row's tool rest adjacent thereto of any row's tool rest is in 40 °
Angle, in shifting to install；Three adjacent row's tool rests realize the circulation of set of blades installation direction, the set of blades installation side of any row's tool rest
It is consistent to the tool rest set of blades installation direction of two row with interval；I.e.：The set of blades installation direction of first row tool rest and the 4th row
The set of blades installation direction of tool rest is overlapped, the set of blades installation direction of second row tool rest and the set of blades installation side of the 5th row's tool rest
To coincidence, the set of blades installation direction of the 3rd row's tool rest is overlapped with the set of blades installation direction of the 6th row's tool rest.It is such uniform
There is no dead angle on 360 ° of stress when arrangement can enable rotary cultivator crushing straw, whole working face, stalk is easily beaten
It is broken, and be difficult to omit.
The set of blades is made up of three coaxial blades 3, and two panels bending type blade is oppositely arranged, in two panels bending type knife
One plane blade is set between piece, the pad 35 of high-strength, high-anti-friction is set between bending type blade and plane blade.
As shown in Fig. 5 ~ Fig. 8, the blade 3 is 40Cr steel blades, including installation portion 31, blade 32, and use is offered on installation portion 31
In the mounting hole 34 through fix bar 36, blade 32 is shaped as rectangle；The installation portion 31 of the bending type blade and blade 32
Between be in 160 ° of angle；Powder metallurgy wearing layer 33 is welded on the work side of blade cutting edge 32, the powder metallurgy is resistance to
Mill layer 33 is chromium nickel cobalt manganese alloy wearing layer, and its thickness is not less than the powder metallurgy of three blades 3 in 5mm, each set of blades
Wearing layer 33 is located at homonymy.
The powder metallurgy wearing layer includes the following component in terms of mass fraction：Sodium 1.1%, magnesium 1.5%, silicon 1.9%, tungsten
3.6%, manganese 1.9%, surplus is iron.
The connection of the set of blades and tool rest includes two kinds of structures：
The first structure, as shown in figure 3, the fix bar 36 is double threaded screw, fix bar 36 is also opened up at screw thread
There is pin-and-hole；Set of blades is installed after tool rest, screw rod two ends are blocked by nut 37, then insertion opening pin 38 enters one in pin-and-hole
Step is fixed, it is to avoid the vibration in rotary cultivator running causes thread looseness, reduces the firm of set of blades.
Second of structure, as shown in figure 4, the fix bar 36 is mushroom head fix bar, its tail end offers pin-and-hole.By knife
Piece group is installed after tool rest, and the tail end of fix bar is realized by insertion opening pin 38 to be fixed；Between split pin and tool rest, mushroom
Wear-resistant gasket is provided between head and tool rest.
The pears tool rest is steel pears tool rest；The blade is processed by the thick 40Cr steel plate puncheds of 5mm, powder metallurgy
Wearing layer is connected through laser fusion welding, and intensity is high, and wearability is good, and the soil for going for various soil properties is cultivated.
The specific size of the blade can be adjusted according to the model and specifically used requirement of rotary cultivator.In this implementation
In the blade of example, blade thickness is 5.5mm, and blade width is 51mm, and the length of installation portion is 100mm, and the length of blade is
60mm, a diameter of 21mm of mounting hole；The length of powder metallurgy wearing layer is length, the i.e. 60mm of blade, and its width is
5.5mm, its thickness is not less than 5mm.
The foregoing is only preferred embodiment of the present utility model, it is all according to present utility model application the scope of the claims done it is equal
Deng change and modification, it should all belong to covering scope of the present utility model.
Claims (9)
1. a kind of rotavator knife axle assembly, it is characterised in that：Including cutter shaft（1）, tool rest and set of blades；The cutter shaft（1）With hair
The spindle drive connection of motivation, in cutter shaft（1）Outer surface on longitudinal measure have number row's tool rests, often arrange tool rest and include three groups of knives
Seat, even cloth are in cutter shaft（1）On periphery, the set of blades installation side of set of blades installation direction row's tool rest adjacent thereto of any group of tool rest
Arranged in dislocation；The set of blades passes through fix bar（36）It is fixedly mounted on tool rest；The set of blades is by coaxial three
Blade（3）Composition, two panels bending type blade is oppositely arranged, a plane blade is set between two panels bending type blade, curved
Pad is set between fold-type blade and plane blade（35）.
2. a kind of rotavator knife axle assembly according to claim 1, it is characterised in that：Every group of tool rest is by being correspondingly arranged
Two pears tool rests（2）Composition, pears tool rest（2）Bottom is welded on cutter shaft（1）Outer surface on, two pears tool rests（2）Between shape
Into the gap for accommodating one group of set of blades；Described two pears tool rests（2）Upper correspondence is offered for fix bar（36）What is passed through runs through
Hole, is also equipped with wear-resistant sleeve on the inside of through hole（21）.
3. a kind of rotavator knife axle assembly according to claim 2, it is characterised in that：The fix bar（36）For double end spiral shell
Bar, fix bar（36）Pin-and-hole is further opened with screw thread.
4. a kind of rotavator knife axle assembly according to claim 2, it is characterised in that：The fix bar（36）For mushroom head
Fix bar, its tail end offers pin-and-hole.
5. a kind of rotavator knife axle assembly according to claim 1, it is characterised in that：The set of blades of any row's tool rest
The set of blades installation direction of installation direction row's tool rest adjacent thereto is in 40 ° of angles.
6. a kind of rotavator knife axle assembly according to claim 5, it is characterised in that：The set of blades of the first row tool rest
Installation direction is overlapped with the set of blades installation direction of the 4th row's tool rest, the set of blades installation direction and the 5th row's knife of second row tool rest
The set of blades installation direction of seat is overlapped, the set of blades installation direction of the 3rd row's tool rest and the set of blades installation direction of the 6th row's tool rest
Overlap.
7. a kind of rotavator knife axle assembly according to claim 1, it is characterised in that：The blade includes installation portion
（31）, blade（32）, installation portion（31）On offer for through fix bar（36）Mounting hole（34）, blade（32）Shape
For rectangle；The installation portion of the bending type blade（31）With blade（32）Between be in 160 ° of angle；In blade cutting edge（32）'s
Work welds powder metallurgy wearing layer on side（33）.
8. a kind of rotavator knife axle assembly according to claim 7, it is characterised in that：The powder metallurgy wearing layer（33）
Thickness be not less than 5mm；Three blades in each set of blades（3）Powder metallurgy wearing layer（33）Positioned at homonymy.
9. a kind of rotavator knife axle assembly according to claim 8, it is characterised in that：The blade（3）For 40Cr steels
Blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481777.5U CN206442667U (en) | 2016-12-30 | 2016-12-30 | A kind of rotavator knife axle assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621481777.5U CN206442667U (en) | 2016-12-30 | 2016-12-30 | A kind of rotavator knife axle assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206442667U true CN206442667U (en) | 2017-08-29 |
Family
ID=59674309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621481777.5U Expired - Fee Related CN206442667U (en) | 2016-12-30 | 2016-12-30 | A kind of rotavator knife axle assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206442667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU187620U1 (en) * | 2018-11-07 | 2019-03-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный аграрный университет" | LAMED KNIFE OF THE CUTTING MACHINE OF ROTARY MOWERS |
-
2016
- 2016-12-30 CN CN201621481777.5U patent/CN206442667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU187620U1 (en) * | 2018-11-07 | 2019-03-13 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный аграрный университет" | LAMED KNIFE OF THE CUTTING MACHINE OF ROTARY MOWERS |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170829 Termination date: 20191230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |