CN110800392B - High-pressure gas desorption and viscosity reduction rotary tillage cutter head, rotary cultivator and rotary tillage method of rotary cultivator - Google Patents
High-pressure gas desorption and viscosity reduction rotary tillage cutter head, rotary cultivator and rotary tillage method of rotary cultivator Download PDFInfo
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- CN110800392B CN110800392B CN201911130957.7A CN201911130957A CN110800392B CN 110800392 B CN110800392 B CN 110800392B CN 201911130957 A CN201911130957 A CN 201911130957A CN 110800392 B CN110800392 B CN 110800392B
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- 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
- A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
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Abstract
Relates to a high-pressure gas desorption viscosity-reducing rotary tillage cutter head, which comprises a pneumatic slip ring, a hollow cutter shaft, a cavity cutter rest and a hollow cutter; the hollow cutter shaft is rotatably connected with the machine frame, a pneumatic slip ring is arranged between the hollow cutter shaft and the machine frame, the cavity cutter rest is arranged on the hollow cutter shaft, and the hollow cutter is arranged on the cavity cutter rest; cavities are formed in the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter, and the cavities of the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter are communicated in sequence; an air pipe interface is arranged on the pneumatic slip ring; the soil contacting part of the hollow cutter is provided with a plurality of air outlets which are uniformly distributed. Also relates to a rotary cultivator and a rotary cultivation method of the rotary cultivator. According to the invention, high-pressure gas is sprayed out from the air outlet hole of the hollow cutter, so that the soil is directly blown away, and the adhesion is reduced; along with the high-speed rotation of rotary tillage blade disc, high-pressure gas forms the air barrier film between rotary tillage blade disc and soil, reduces soil and adheres, belongs to agricultural machines technical field.
Description
Technical Field
The invention relates to the technical field of agricultural equipment, in particular to a high-pressure gas desorption and viscosity reduction rotary tillage cutter head, a rotary cultivator adopting the rotary tillage cutter head and a rotary tillage method of the rotary cultivator.
Background
At present, the commonly used rotary tillage cutters directly contact with soil, the soil is thrown away from the cutters by means of high-speed rotary centrifugal force of the cutters, but the soil has larger viscosity and is adhered to the surfaces of the tillage cutters, so that the resistance of the cutters is increased during tillage, and the service life of the cutters is shortened.
The applicant found that if a third factor, high pressure gas, is introduced between the knives and the soil, an air film is formed between the knives and the soil, which greatly reduces the adhesion of the soil to the knives, reduces the resistance to tillage and increases the life of the knives.
The prior art does not have the rotary tillage cutter head adopting the air film to reduce the soil adhesion.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention aims to: provides a high-pressure gas desorption viscosity-reducing rotary tillage cutter head for reducing soil adhesion by forming an air film.
Also relates to a rotary cultivator provided with a rotary tillage cutter head for reducing soil adhesion and a rotary tillage method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-pressure gas desorption viscosity-reducing rotary tillage cutter head comprises a pneumatic slip ring, a hollow cutter shaft, a cavity cutter frame and a hollow cutter; the hollow cutter shaft is rotatably connected with the machine frame, a pneumatic slip ring is arranged between the hollow cutter shaft and the machine frame, the cavity cutter rest is arranged on the hollow cutter shaft, and the hollow cutter is arranged on the cavity cutter rest; cavities are formed in the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter, and the cavities of the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter are communicated in sequence; an air pipe interface is arranged on the pneumatic slip ring; the soil contacting part of the hollow cutter is provided with a plurality of air outlets which are uniformly distributed.
Preferably, the high-pressure gas desorption viscosity-reducing rotary tillage cutter head further comprises a shoulder screw and a nut; the cavity tool rest comprises a tool rest body, a shaft sleeve type mounting hole and side supporting arms, the tool rest body comprises a panel, a back plate, an inner end plate, an outer end plate and two side plates, the panel, the inner end plate, the outer end plate and the two side plates form a cavity, an air inlet hole is formed in the inner end plate, an air outlet hole is formed in the panel, one end of the shaft sleeve type mounting hole is connected with the inner side of the back plate and penetrates through the back plate, the other end of the shaft sleeve type mounting hole extends out of the air outlet hole and protrudes out of the panel, and the two; the hollow cutter comprises a front part, a back part and a side part which enclose a cavity, the air inlet is positioned at the back part, the inner side of the front part is provided with a mounting groove, and the middle part of the mounting groove is provided with a through mounting hole; the hollow cutter is clamped between the supporting arms at the two sides, the shaft sleeve type mounting hole penetrates through the air inlet hole of the hollow cutter, the end part of the shaft sleeve type mounting hole is propped in the mounting groove, the shaft shoulder screw penetrates through the mounting hole and the shaft sleeve type mounting hole of the hollow cutter, the end part of the shaft shoulder screw is screwed in the nut and locked, and the air outlet hole of the cavity cutter rest is just opposite to the air inlet hole of the hollow cutter.
Preferably, a sealing rubber gasket for ensuring the air tightness between the cavity tool rest and the hollow tool is arranged between the panel of the cavity tool rest and the back part of the hollow tool; a sealing rubber gasket for ensuring air tightness is arranged between the shaft sleeve type mounting hole of the cavity tool rest and the mounting groove of the hollow tool; a gasket is arranged between the nut and the back plate of the cavity tool rest.
Preferably, the number of the cavity tool rests is at least one pair, and a pair of cavity tool rests are correspondingly provided with a pair of hollow tools; the pair of hollow cutters comprises a left bent cutter and a right bent cutter.
Preferably, the hollow cutter is provided with densely distributed air outlets at the free end of the front part and the free end of the back part.
Preferably, one end of the hollow cutter shaft is provided with an air inlet, and the side wall of the hollow cutter shaft is provided with an air outlet in the radial direction; the inner end plate of the cavity tool rest is in a circular arc shape matched with the side wall of the hollow cutter shaft; the air outlet hole of the hollow cutter shaft is opposite to the air inlet hole of the cavity tool rest; the cavity tool rest is fixed on the hollow cutter shaft in a welding mode.
Preferably, the pneumatic slip ring comprises a stator part and a rotor part, and a cavity of the stator part and a cavity of the rotor part are communicated with each other; the stator part is provided with a stop rod and a gas pipe interface, and the stop rod is connected with the machine frame; the rotor part is a rotating disc, and the center of the rotor part is provided with an air outlet hole.
Preferably, the end part of the hollow cutter shaft is connected with an air outlet hole of the pneumatic slip ring in a matched mode through internal and external threads.
A rotary cultivator comprises an air source and a high-pressure gas desorption viscosity-reduction rotary tillage cutter head; the air source for providing high-pressure air is connected with the air pipe interface of the pneumatic slip ring through the air pipe.
A rotary tillage method of a rotary cultivator adopts a rotary cultivator, high-pressure gas is sprayed out through an air outlet hole of a hollow cutter to blow soil away, and simultaneously, along with the high-speed rotation of a rotary tillage cutter head, the high-pressure gas forms an air film for reducing the adhesion of the soil between the hollow cutter and the soil.
In summary, the present invention has the following advantages:
1. high-pressure gas is sprayed out from the air outlet hole of the hollow cutter, so that on one hand, the soil can be directly blown away, and the adhesion is reduced; on the other hand, along with the high-speed rotation of the rotary tillage cutter head, air isolation films are formed between the rotary tillage cutter head and soil by high-pressure air, and soil adhesion is reduced.
2. The friction between the soil and the cutters can be reduced due to the reduction of the adhesion of the soil, the tillage resistance of the cutters is reduced, and the service life of the cutters is prolonged.
3. Simple structure, the mode that accessible casting or 3D printed accomplishes manufacturing, has higher spreading value.
4. By adopting a special connecting structure of the cavity tool rest and the hollow tool, the air tightness is effectively ensured while the installation is easy.
5. Adopt side braced arm structure for hollow cutter easily installs the counterpoint, and rotary tillage blade disc is at the during operation simultaneously, and side braced arm supports the torsion that the during operation received with the installation end laminating of hollow cutter.
6. Air outlet holes are densely distributed at the contact part of the hollow cutter and the soil, so that the anti-adhesion effect is ensured.
7. And a sealing gasket is adopted at a position where air leakage is possible, so that the air tightness is ensured.
8. By adopting the hollow cutter shaft structure, a plurality of pairs of cavity tool rests and hollow cutters can be designed and installed as required in the axial direction.
Drawings
Fig. 1 is a perspective view of a high-pressure gas desorption viscosity-reduction rotary tillage cutter head.
Fig. 2 is a perspective view of a cavity holder.
Fig. 3 is a top view of the cavity holder.
Fig. 4 is a sectional view of fig. 3.
Fig. 5 is an assembly view of the cavity tool holder and the hollow arbor.
Fig. 6 is a cross-sectional view of fig. 5.
Fig. 7 is a perspective view of a hollow cutter.
Fig. 8 is a schematic view of a hollow cutter.
Fig. 9 is a cross-sectional view of fig. 8.
Fig. 10 is an assembly view of a cavity holder and hollow cutting tool.
Fig. 11 is a sectional view of fig. 10.
Fig. 12 is a perspective view of the pneumatic slide ring.
Fig. 13 is a schematic structural view of the pneumatic slip ring.
The pneumatic tool comprises a pneumatic sliding ring 1, a hollow cutter shaft 2, a cavity tool rest 3, a hollow cutter 4, a shoulder screw 5, a nut 6, a sealing rubber gasket 7, a sealing rubber gasket 8 and a gasket 9.
1-1 is a stator part, 1-2 is a rotor part, 1-3 is a stop lever, and 1-4 is an air pipe interface.
2-1 is an air outlet hole of the hollow cutter shaft.
3-1 is a tool rest body, 3-2 is a shaft sleeve type mounting hole, 3-3 is a side support arm, 3-4 is a panel, 3-5 is an inner end plate, 3-6 is an air outlet hole of the cavity tool rest, and 3-7 is a cavity of the cavity tool rest.
4-1 is a front part, 4-2 is a back part, 4-3 is a side part, 4-4 is a mounting groove, 4-5 is a mounting hole, 4-6 is a left curved knife, 4-7 is a right curved knife, 4-8 is an air inlet hole of the hollow cutter, and 4-9 is a cavity of the hollow cutter.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Example one
A high-pressure gas desorption viscosity-reducing rotary tillage cutter head comprises a pneumatic slip ring, a hollow cutter shaft, a cavity cutter rest, a hollow cutter, a shaft shoulder screw and a nut. The hollow cutter shaft is rotatably connected with the machine frame, a pneumatic slip ring is arranged between the hollow cutter shaft and the machine frame, the cavity cutter rest is arranged on the hollow cutter shaft, and the hollow cutter is arranged on the cavity cutter rest through a shaft shoulder screw and a nut; cavities are formed in the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter, and the cavities of the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter are communicated in sequence; an air pipe interface is arranged on the pneumatic slip ring; the soil contacting part of the hollow cutter is provided with a plurality of air outlets which are uniformly distributed.
The pneumatic slip ring comprises a stator part and a rotor part, wherein a cavity of the stator part and a cavity of the rotor part are communicated with each other, and the rotor part rotates relative to the stator part. The stator part is provided with a stop rod and a gas pipe interface, and the stop rod is connected with the machine frame to prevent the stator part from rotating along with the rotor part; the rotor part is a rotating disc, the center of the rotor part is provided with an air outlet hole, and the air outlet hole is designed into a threaded hole of M16 and is in threaded fit with the end part of the hollow cutter shaft. The pneumatic slip ring is used for inputting gas into the hollow cutter shaft and is used as a gas transmission device, and the hollow cutter shaft and the machine frame are connected in the prior art, for example, by a bearing.
One end of the hollow cutter shaft is provided with an air inlet, the side wall of the hollow cutter shaft is provided with two pairs of air outlet holes in the radial direction, the two pairs of air outlet holes are arranged along the axial direction, and the radial directions of the two pairs of air outlet holes are mutually vertical; the inner end plate of the cavity tool rest is in a circular arc shape matched with the side wall of the hollow cutter shaft; the air outlet hole of the hollow cutter shaft is opposite to the air inlet hole of the cavity tool rest; the cavity tool rest is fixed on the hollow cutter shaft in a welding mode.
The cavity tool rest comprises a tool rest body, a shaft sleeve type mounting hole and side supporting arms, the tool rest body comprises a panel, a back plate, an inner end plate, an outer end plate and two side plates, the panel surrounds the cavity, and the panel faces towards the hollow tool. The air inlet is located the interior end plate, and the venthole is located the panel, and the one end of axle sleeve formula mounting hole meets and runs through the backplate with the inboard of backplate, and axle sleeve formula mounting hole 10mm, external diameter 16m, the other end of axle sleeve formula mounting hole stretches out and protrusion in the panel from the venthole, and both sides board forms both sides support arm to the surface direction extension of panel and protrusion in the panel. In this embodiment, the number of the cavity tool rests is two, and the cavity tool rests are arranged corresponding to the two pairs of air outlet holes of the hollow tool shaft. A2.5 mm gap is reserved between the shaft sleeve type mounting hole and the air outlet hole.
The hollow cutter comprises a front part, a back part and a side part which enclose a cavity, the air inlet is positioned at the back part, the inner side of the front part is provided with a mounting groove, and the middle part of the mounting groove is provided with a through mounting hole; the hollow cutter is clamped between the supporting arms at the two sides, the shaft sleeve type mounting hole penetrates through the air inlet hole of the hollow cutter, the end part of the shaft sleeve type mounting hole is propped in the mounting groove, the shaft shoulder screw penetrates through the mounting hole and the shaft sleeve type mounting hole of the hollow cutter, the end part of the shaft shoulder screw is screwed in the nut and locked, and at the moment, the air outlet hole of the cavity cutter rest is just opposite to the air inlet hole of the hollow cutter. In this embodiment, the number of the hollow tools is four, and the hollow tools are correspondingly mounted on four cavity tool holders. The free end of the front part and the free end of the back part of each hollow cutter are provided with densely distributed air outlets with the aperture of 1.5mm, so that the maximum contact of soil with high-pressure gas is ensured. The pair of hollow cutters comprises a left bent cutter and a right bent cutter, and the left bent cutter and the right bent cutter are opposite in bending direction when viewed from the whole rotary tillage cutter head.
In order to ensure the air tightness of all cavities, the parts need to be tightly matched. In addition, a sealing rubber gasket for ensuring the air tightness between the cavity tool rest and the hollow tool is arranged between the panel of the cavity tool rest and the back part of the hollow tool; a sealing rubber gasket for ensuring air tightness is arranged between the shaft sleeve type mounting hole of the cavity tool rest and the mounting groove of the hollow tool; a gasket is arranged between the nut and the back plate of the cavity tool rest.
When the pneumatic slip ring is installed, the end part of the hollow cutter shaft is connected with an air outlet hole of the pneumatic slip ring in a matched mode through internal and external threads; the hollow cutter holder is connected with the hollow cutter shaft by welding; the hollow cutter and the cavity tool rest are connected through a shaft shoulder screw and a nut. In this embodiment, in one pair, one set of cavity holders and hollow cutters are mounted with the other set facing in an opposite axial direction to form left and right curved cutters.
When the pneumatic slip ring is used, high-pressure gas is supplied by a gas source, enters the cavity of the pneumatic slip ring from the gas pipe interface through the gas pipe and flows out from the gas outlet hole of the pneumatic slip ring; the air enters the cavity through the air inlet hole of the hollow cutter shaft and then flows out through the radial air outlet hole; the gas enters the cavity through the gas inlet hole of the cavity tool rest and is discharged through the gas outlet hole; the air flow enters through the air inlet hole of the hollow cutter, and finally high-pressure air flow is discharged from the air outlet hole to blow away soil and form an air film along with the high-speed rotation of the hollow cutter.
Example two
A rotary cultivator comprises an air source and a high-pressure gas desorption viscosity-reducing rotary tillage cutter head in the first embodiment; the air source for providing high-pressure air is connected with the air pipe interface of the pneumatic slip ring through the air pipe.
A rotary tillage method of a rotary cultivator adopts a rotary cultivator, high-pressure gas is sprayed out through an air outlet hole of a hollow cutter to blow soil away, and simultaneously, along with the high-speed rotation of a rotary tillage cutter head, the high-pressure gas forms an air film for reducing the adhesion of the soil between the hollow cutter and the soil, so that the adhesion of the soil is reduced.
The embodiment is not described in the first embodiment.
Except for the mode mentioned in the above embodiment, the number of the hollow tool holders and the hollow tools is three, the hollow tool holders and the hollow tools are sequentially arranged along the axial direction of the hollow cutter shaft, and six hollow tools are uniformly distributed in the circumferential direction. In the pair of cavity tool rests, the two cavity tool rests are axially arranged in the same direction, and hollow tools in different bending directions are respectively arranged to form a left bent tool and a right bent tool. These variations are all within the scope of the present invention.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a high-pressure gas desorption visbreaking rotary tillage blade disc which characterized in that: comprises a pneumatic slip ring, a hollow cutter shaft, a hollow cutter frame and a hollow cutter; the hollow cutter shaft is rotatably connected with the machine frame, a pneumatic slip ring is arranged between the hollow cutter shaft and the machine frame, the cavity cutter rest is arranged on the hollow cutter shaft, and the hollow cutter is arranged on the cavity cutter rest; cavities are formed in the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter, and the cavities of the pneumatic sliding ring, the hollow cutter shaft, the cavity cutter rest and the hollow cutter are communicated in sequence; an air pipe interface is arranged on the pneumatic slip ring; a plurality of air outlet holes which are uniformly distributed are arranged at the soil contact part of the hollow cutter;
the device also comprises a shaft shoulder screw and a nut;
the cavity tool rest comprises a tool rest body, a shaft sleeve type mounting hole and side supporting arms, the tool rest body comprises a panel, a back plate, an inner end plate, an outer end plate and two side plates, the panel, the inner end plate, the outer end plate and the two side plates form a cavity, an air inlet hole is formed in the inner end plate, an air outlet hole is formed in the panel, one end of the shaft sleeve type mounting hole is connected with the inner side of the back plate and penetrates through the back plate, the other end of the shaft sleeve type mounting hole extends out of the air outlet hole and protrudes out of the panel, and the two;
the hollow cutter comprises a front part, a back part and a side part which enclose a cavity, the air inlet is positioned at the back part, the inner side of the front part is provided with a mounting groove, and the middle part of the mounting groove is provided with a through mounting hole;
the hollow cutter is clamped between the supporting arms at the two sides, the shaft sleeve type mounting hole penetrates through the air inlet hole of the hollow cutter, the end part of the shaft sleeve type mounting hole is propped in the mounting groove, the shaft shoulder screw penetrates through the mounting hole and the shaft sleeve type mounting hole of the hollow cutter, the end part of the shaft shoulder screw is screwed in the nut and locked, and the air outlet hole of the cavity cutter rest is just opposite to the air inlet hole of the hollow cutter.
2. The high-pressure gas desorption visbreaking rotary tillage cutter head of claim 1, characterized in that: a sealing rubber gasket for ensuring the air tightness between the cavity tool rest and the hollow tool is arranged between the panel of the cavity tool rest and the back part of the hollow tool; a sealing rubber gasket for ensuring air tightness is arranged between the shaft sleeve type mounting hole of the cavity tool rest and the mounting groove of the hollow tool; a gasket is arranged between the nut and the back plate of the cavity tool rest.
3. The high-pressure gas desorption visbreaking rotary tillage cutter head of claim 1, characterized in that: the number of the cavity tool rests is at least one pair, and a pair of hollow tools are correspondingly arranged on the cavity tool rests; the pair of hollow cutters comprises a left bent cutter and a right bent cutter.
4. The high-pressure gas desorption visbreaking rotary tillage cutter head of claim 1, characterized in that: in the hollow cutter, the free end of the front part and the free end of the back part are both provided with densely distributed air outlets.
5. The high-pressure gas desorption visbreaking rotary tillage cutter head of claim 1, characterized in that: one end of the hollow cutter shaft is provided with an air inlet, and the side wall of the hollow cutter shaft is provided with an air outlet in the radial direction; the inner end plate of the cavity tool rest is in a circular arc shape matched with the side wall of the hollow cutter shaft; the air outlet hole of the hollow cutter shaft is opposite to the air inlet hole of the cavity tool rest; the cavity tool rest is fixed on the hollow cutter shaft in a welding mode.
6. The high-pressure gas desorption visbreaking rotary tillage cutter head of claim 5, characterized in that: the pneumatic slip ring comprises a stator part and a rotor part, and a cavity of the stator part is communicated with a cavity of the rotor part; the stator part is provided with a stop rod and a gas pipe interface, and the stop rod is connected with the machine frame; the rotor part is a rotating disc, and the center of the rotor part is provided with an air outlet hole.
7. The high-pressure gas desorption visbreaking rotary tillage cutter head of claim 6, characterized in that: the end part of the hollow cutter shaft is connected with an air outlet hole of the pneumatic slip ring in a matched manner through internal and external threads.
8. A rotary cultivator is characterized in that: a high pressure gas desorption viscosity-reducing rotary tillage cutter head of any one of claims 1 to 7; the air source for providing high-pressure air is connected with the air pipe interface of the pneumatic slip ring through the air pipe.
9. A rotary tillage method of a rotary cultivator, which adopts the rotary cultivator of claim 8, and is characterized in that: high-pressure gas is sprayed out through the air outlet hole of the hollow cutter to blow away soil, and simultaneously, along with the high-speed rotation of the rotary tillage cutter head, the high-pressure gas forms an air film for reducing the adhesion of the soil between the hollow cutter and the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130957.7A CN110800392B (en) | 2019-11-19 | 2019-11-19 | High-pressure gas desorption and viscosity reduction rotary tillage cutter head, rotary cultivator and rotary tillage method of rotary cultivator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911130957.7A CN110800392B (en) | 2019-11-19 | 2019-11-19 | High-pressure gas desorption and viscosity reduction rotary tillage cutter head, rotary cultivator and rotary tillage method of rotary cultivator |
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| CN110800392A CN110800392A (en) | 2020-02-18 |
| CN110800392B true CN110800392B (en) | 2021-03-16 |
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| CN113632604A (en) * | 2021-09-07 | 2021-11-12 | 曾丹 | Soil loosening device capable of reducing collision and abrasion of tool bit |
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| CN110800392A (en) | 2020-02-18 |
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