CN107243718A - A kind of rotary cultivator tool rest and its manufacture method - Google Patents
A kind of rotary cultivator tool rest and its manufacture method Download PDFInfo
- Publication number
- CN107243718A CN107243718A CN201611165847.0A CN201611165847A CN107243718A CN 107243718 A CN107243718 A CN 107243718A CN 201611165847 A CN201611165847 A CN 201611165847A CN 107243718 A CN107243718 A CN 107243718A
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- China
- Prior art keywords
- tool rest
- frock
- reinforcement
- eaves
- drift
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
Abstract
The invention discloses a kind of rotary cultivator tool rest, including tool rest body, reinforcement eaves and reinforcement；The tool rest body is the hollow steel tube of round rectangle, and the upper end of the tool rest body is plane, the cambered surface that its lower end extends for both sides to the left and right；Correspondence on positive hexagonal through hole, rear wall is offered on the front side wall of the tool rest body and offers manhole, the top of tool rest body sets the reinforcement eaves of oriented surrounding protrusion, is strengthening being also respectively provided with reinforcement between eaves and two narrower side walls of tool rest body.The tool-apron structure is simple, reasonable in design, significantly increases the hardness and intensity of tool rest, not easy to crack, service life significantly extends.Present invention also offers the manufacture method of the tool rest, manufacturing process is without being heat-treated, and simple to operation, production efficiency is high, production cost is low, it is ensured that the mechanical property of tool rest.
Description
Technical field
The present invention relates to a kind of rotary cultivator tool rest and its manufacture method, belong to agricultural machinery technological field.
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.The workpiece of rotary cultivator is rotating blade, and rotating blade is arranged on tool rest,
Tool rest is welded in cutter shaft, and blade rotation is driven by cutter shaft rotation.
At present, rotary cultivator tool rest generally uses cross section for the flat tube of rectangle, structure as shown in figure 1, tool rest arc end is welded
It is connected on cutter shaft, the intraoral inserting blade of rectangular tube of the other end；The narrow rectangular tube of tool rest, which is generally adopted, to be cast by iron.This tool rest
Resistance when when in use, due to arable land can produce larger torque, and on the one hand tool rest is easily caused by larger peripheral force
Raw tool rest made of iron snaps from the cutter shaft of cold-drawn steel to come off, another aspect narrow rectangular tube edge iso-stress fragility position by
Easily cracking infringement after power, service life is low, have impact on the normal work of rotary cultivator.Using casting more than current rotary cultivator tool rest
Mode is made, and the quality of casting tool rest is heavily dependent on the effect of heat treatment, will be led once thermal effectiveness is not good
Causing the intensity of tool rest is substantially reduced, and the uniformity of tool rest declines, and quality is highly unstable, is easily occurred fracture and is damaged.
The content of the invention
To solve the above mentioned problem that prior art is present, it is an object of the invention to provide a kind of impact strength greatly, no
It is easy to crack, with cutter shaft firm welded, the rotary cultivator tool rest of service life length, and a kind of manufacturing cycle it is short, production efficiency is high, carry
The manufacture method of the rotary cultivator tool rest of high tool rest quality.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of rotary cultivator tool rest, including tool rest body, reinforcement eaves and reinforcement；The tool rest body is the cored steel of round rectangle
Pipe, offers the blade jack of rectangle, the upper end of the tool rest body is plane, and its lower end is in the middle thereof of tool rest body
The cambered surface of both sides extension to the left and right；Correspondence on positive hexagonal through hole, rear wall is offered on the front side wall of the tool rest body to open up
There is manhole, the positive hexagonal through hole is to be coaxially disposed with manhole；The top surrounding of the tool rest body sets oriented
The reinforcement eaves of outer protrusion, the upper edge for strengthening eaves is flushed with the upper surface of tool rest body, and the corner for strengthening eaves is fillet；
Strengthen being also respectively provided with reinforcement between eaves and two narrower side walls of tool rest body；
The transverse width that the transverse width of the tool rest body lower end is held greatly thereon；The size of the blade jack and blade
Installation end matches；The radius of the cambered surface matches with the external diameter of rotary tiller shaft；The reinforcement is arranged at tool rest body
The center of two narrower side walls, its width is less than the wall wide of the side wall.
A kind of manufacture method of described rotary cultivator tool rest, is comprised the steps of：
A, blanking
Seamless square steel will be cut into length with a chainsaw homogeneous using the seamless square steel of # or the seamless square steel of # as raw material, by processing dimension
Pipeline section, remove saw kerf corner angle；
Eaves and reinforcement are strengthened in B, forging
The fixing frock and upper pressure frock adaptable with it is selected according to spoolpiece size；Frock will be fixed to be fixed under forcing press
Mould, upper pressure frock is fixed on the upper mould of first pressure machine, fixing frock is overlapped with the upper axis for pressing frock；Pipeline section is heated
It is put into afterwards in the slotted eye for fixing frock, then drives first pressure machine, pressure frock is forged with fixing frock matched moulds, high frequency
The reinforcement eaves and reinforcement of tool rest；
C, forging bottom cambered surface
The fixing frock that tool rest is filled in step B is removed, is fixed on after 180 ° of upset on the lower mould of second pressure machine, makes reinforcement
Eaves and reinforcement part are downward, do not forge bottom surface upwards, will push frock and are fixed on the upper mould of second pressure machine；Driving second
Forcing press, makes to push frock and fixing frock matched moulds, high frequency forges the cambered surface of tool rest bottom；
D, knife stamping holder mounting hole
After after natural cooling, according to processing dimension, punching press one positive six is distinguished on the side wall of tool rest using punch press lateral opening and one justify
Hole, produces novel rotary cultivator tool rest.
In the step B, the heating-up temperature of pipeline section is 800 ~ 1000 DEG C, 850 DEG C of optimal selection；The punching press of first pressure machine
Power is 0.9 × 104~1.2×104MPa, preferably 0.95 × 104~1.1×104MPa, most preferably 1.0 × 104MPa。
In the step C, using step B remaining temperature, without being heated again to pipeline section；The stamping press of second pressure machine is
1.0×104~1.3×104MPa, preferably 1.05 × 104~1.2×104MPa, most preferably 1.1 × 104MPa。
In the step D, the stamping press of punch press is 0.5 × 104~0.8×104MPa, preferably 0.55 × 104~0.7×
104MPa, most preferably 0.6 × 104MPa。
Further improvement of the present invention is：The fixing frock is mould steel frock, is offered fixing inside frock
The blade groove and strengthening groove being connected, the strengthening groove is located above blade groove and strengthening groove size is more than blade groove size, institute
State strengthening groove and be engaged with strengthening the outer surface of eaves and reinforcement, blade groove is engaged with the outer surface of pipeline section；
The upper pressure frock includes backform, is arranged on the drift I in backform center, and the junction of drift I and backform is fillet；It is described
Drift I is rectangular punch, and the front end of drift I sets the chamfering for being easy to the insertion of drift I to fix frock；The length of drift I is not less than pipe
The 1/3 of segment length.
The frock that pushes includes bed die, is arranged on the drift II in bed die center；The upper surface of the bed die is and tool rest
The arc that bottom cambered surface is engaged, the width of bed die is longer than the width of tool rest bottom cambered surface；Drift II is rectangular punch, its front end
The chamfering for being easy to the insertion of drift II to fix frock is set；The length of drift II is not less than the 1/3 of length of pipe section.
Further improvement of the present invention is：It is described fix frock, upper pressure frock, to push frock be mould steel frock；
The drift I, the front end of drift II are respectively provided with 45 ° of chamferings；The width of the bed die cambered surface is more than the cambered surface width of tool rest bottom, its
Stand out is not less than 10mm.
By adopting the above-described technical solution, the technological progress that the present invention is obtained is：
It is simple in construction the invention discloses a kind of rotary cultivator tool rest, it is reasonable in design, the hardness and intensity of tool rest are significantly increased,
Not easy to crack, service life significantly extends.Reinforcement eaves and reinforcement that tool rest upper end forced position is set up, not only increase tool rest
With the torsional strength and tensile strength of blade junction, the tensile strength of tool rest in itself also greatly strengthen；The setting of reinforcement,
The narrower side wall of tool rest for making stress during work maximum has obtained effective reinforcement and stably, not easy to crack when being impacted by hard thing；
Meanwhile, tool rest body and reinforcement eaves of the invention is fillet design, and compared with common right angle tool rest, stress tender spots substantially subtracts
It is few, can effective cushion impact forces, further avoid the cracking of the narrower side wall of tool rest, substantially prolongs the work longevity of rotary cultivator
Life.
Positive a hexagonal through hole and a manhole are opened up on two broad side walls of tool rest body of the present invention respectively, just
Hexagonal through hole is big compared with manhole, and the nut of different size and model can be coordinated to use, and applicability is wide, practical；And peace
It is very firm after blade to fill, and is not susceptible to loosen.
The invention also discloses a kind of manufacture method of rotary cultivator tool rest, use the seamless square steel of 35# or the seamless square steel of 45# for
Raw material, only can be prepared by not welding on the rotary blade tool rest of high intensity, tool rest body by the forging of two step high frequencies, a step punching press
Gap and other stress tender spots；Manufacturing process is without being heat-treated, and economical and practical, simple to operation, Fabrication parameter is easy to
Control, is difficult to make waste product, greatly improves the intensity and uniformity of tool rest, significantly improve the service life of tool rest, together
When tool rest production efficiency also greatly improve, production cost is low.This manufacture method can be prepared according to the rotary cultivator of different model
The tool rest of different size, matching tooling used can be used with repeated multiple times, strong adaptability.
The present invention uses the seamless square steel of material identical 35# or the seamless square steel of 45# with rotary tiller shaft for raw material, tool rest
The ignition-face area increase of bottom, thus the firm welding degree between tool rest and cutter shaft is greatly enhanced, it is not susceptible to out when using
Weldering comes off.
Brief description of the drawings
Fig. 1 is the structural representation of common rotary tool rest；
Fig. 2 is the schematic front view of tool rest of the present invention；
Fig. 3 is the schematic cross-sectional view in A-A faces in Fig. 2；
Fig. 4 is the schematic top plan view of tool rest of the present invention；
Fig. 5 regards schematic diagram for the right side of tool rest of the present invention；
Fig. 6 is the schematic side view for fixing frock；
Fig. 7 is the schematic top plan view that the present embodiment fixes frock；
Fig. 8 is the schematic top plan view for fixing frock；
Fig. 9 is the schematic top plan view that the present embodiment fixes frock；
Figure 10 is the structural representation of upper pressure frock；
Figure 11 is the schematic side view of upper pressure frock；
Figure 12 is the structural representation for pushing frock；
Wherein, 1, tool rest body, 11, blade jack, 12, cambered surface, 13, positive hexagonal through hole, 14, manhole, 2, strengthen eaves, 3,
Reinforcement, 41, backform, 42, drift I, 51, bed die, 52, drift II.
Embodiment
Describe the present invention in detail below with reference to the accompanying drawings.
A kind of rotary cultivator tool rest, as shown in Fig. 2 ~ 5, including tool rest body 1, reinforcement eaves 2 and reinforcement 3；The tool rest sheet
Body 1 is the hollow steel tube of round rectangle, is made of the seamless cold tube rolling of heavy wall, and its front side wall, rear wall are broad side wall, left
Side wall, right side wall are narrower side wall；The blade jack 11 of rectangle, blade jack 11 are offered in the middle thereof of tool rest body 1
Size and the installation end of blade match.The upper end of the tool rest body 1 is plane, and its lower end is the extension of both sides to the left and right
Cambered surface 12, the radius of cambered surface 12 is matched with the external diameter of rotary tiller shaft, and the transverse width of the lower end of tool rest body 1 is held greatly thereon
Transverse width.Correspondence on positive hexagonal through hole 13, rear wall is offered on the front side wall of the tool rest body 1 and offers circular lead to
Hole 14, the positive hexagonal through hole 13 is to be coaxially disposed with manhole 14；Using positive hexagonal through hole 13 and the conduct of manhole 14
Blade mounting holes, adaptability is stronger, is adapted to different size and the nut of model；The top surrounding of the tool rest body 1 is set
Outwardly reinforcement eaves 2 is equipped with, the upper edge for strengthening eaves 2 is flushed with the upper surface of tool rest body 1, the corner for strengthening eaves 2
It is fillet, the width for strengthening eaves 2 is less than the width of cambered surface 12.Strengthen the left side wall of eaves 2 and tool rest body 1, right side wall it
Between, it is also respectively provided with reinforcement 3；The reinforcement 3 is arranged at the center of left side wall, right side wall, and its width is less than left side
The wall wide of wall, right side wall.
The specific size of the rotary cultivator tool rest can be adjusted according to the specification requirement of rotary cultivator.In the present embodiment,
The size of tool rest body upper end planar section is 42mm*22mm, and the bottom width of cambered surface part is 50mm, and cambered surface radius is
40mm；The width for strengthening eaves is 1.5mm, is highly 7mm, tool rest body and a diameter of 30mm of fillet for strengthening eaves；Reinforcement
It is highly 10mm, width is 2.5mm；The specification of blade jack is 32mm*12mm, a diameter of 13mm of manhole, and positive six is lateral opening
Circumscribed circle diameter be 19mm.
The manufacture method of above-described embodiment tool rest, is comprised the steps of：
A, blanking
It is that the seamless square steel of 35# that 42mm × 22mm, thickness are 5mm is raw material to take cross sectional dimensions, by processing dimension, by seamless steel
Effective electric saw cuts into the pipeline section that some length are 68mm, removes saw kerf corner angle；The intermediate pore size of pipeline section is 32mm × 12mm,
As blade jack；
Eaves is strengthened in B, forging
According to spoolpiece size, the fixing frock and upper pressure frock being matched therewith are chosen.
The fixing frock is mould steel frock, and the blade groove and strengthening groove being connected are offered inside fixing frock,
The strengthening groove is located above blade groove and strengthening groove size is more than blade groove size, and the strengthening groove is with strengthening eaves and reinforcement
The outer surface of muscle is engaged, and blade groove is engaged with the outer surface of pipeline section.The height for fixing frock is 68mm, blade groove
Cross sectional dimensions is 42mm × 22mm, is highly 51mm；In strengthening groove, the height for strengthening eaves portion is 7mm, and cross-sectional width is
45mm × 25mm, the height for strengthening muscle portion is 10mm, and the width for strengthening muscle portion is 2.5mm.
The backform size of the upper pressure frock is engaged with fixing the outer wall dimension of frock；The center of upper pressure frock sets punching
First I, the cross sectional dimensions of drift I is 30mm × 11mm, and its length is not less than 23mm, and the end of drift I sets 45 ° of chamferings.
Frock will be fixed and be fixed on the lower mould of forcing press, upper pressure frock is fixed on to the upper mould of first pressure machine, make fixing
Frock is overlapped with the axis of upper pressure frock；Pipeline section is heated to 850 DEG C, is then placed in the slotted eye for fixing frock；Driving first
Forcing press, 1.0 × 104Under MPa stamping press, pressure frock is set to forge the reinforcement of tool rest with fixing frock matched moulds, high frequency
Eaves and reinforcement；
C, forging bottom cambered surface
Frock is pushed from what slot size was engaged with spoolpiece size.The frock that pushes includes bed die, is arranged in bed die
The drift II of centre；Bed die size is engaged with fixing the outer wall dimension of frock, and its upper surface is what tool rest bottom cambered surface was engaged
Cambered surface, the width of bed die cambered surface is more than the cambered surface width of tool rest bottom, and the radius of bed die cambered surface is 40mm.The drift II is square
Shape drift, the cross sectional dimensions of drift II is 30mm × 11mm, and its length is not less than 23mm, and the front end of drift II sets setting to be easy to
The insertion of drift II fixes 45 ° of chamferings of frock.
The fixing frock that tool rest is filled in step B is removed, is fixed on the lower mould of second pressure machine, makes after 180 ° of upset
Strengthen eaves and reinforcement part downwards, not forged bottom surface upwards, frock will be pushed and be fixed on the upper mould of second pressure machine,
Make fixing frock and push the axis coincidence of frock；Using the waste heat of pipeline section, second pressure machine is driven, 1.1 × 104MPa's
Under stamping press, make to push frock and fixing frock matched moulds, high frequency forges the cambered surface of tool rest bottom；
D, knife stamping holder mounting hole
After after workpiece natural cooling, using punch press on the side wall of tool rest the lateral opening and circular hole of relative punching press one positive six, institute respectively
Positive six lateral opening circumscribed circle diameters are stated for 19mm, a diameter of 13mm of circular hole；The stamping press of punch press is 0.6 × 104MPa；Punching press
After end, rotary cultivator tool rest is produced.
According to the method described above, the rotary cultivator tool rest 3 of same specification is prepared, DZ-1, DZ-2, DZ-3 is respectively labeled as；Separately take
One commercially available cast moulding tool rest as shown in Figure 1, labeled as DB-1, carries out mechanics properties testing, testing result is as shown in table 1.
The mechanical experimental results of the rotary cultivator tool rest of table 1
Can be seen that tool rest made from the inventive method by the data in table 1, its tensile strength, yield strength, elongation percentage,
The contraction percentage of area is obviously higher than commercially available rotary cultivator tool rest.Wherein, tensile strength improves about 6.2%, and yield strength is improved about
7.4%, it was demonstrated that this method tool rest body can bear higher external force without being broken；Elongation percentage improves about 21.0%, section
Shrinkage factor improves about 47.1%, it was demonstrated that the plasticity of this method tool rest is larger, and the ability that local peaks stress can be adjusted when using is strong,
Stress can effectively be cleared up, it is to avoid fracture, destruction occur for tool rest body.To sum up, the inventive method can substantially improve tool rest
Every mechanical property, improves the durability and service life of tool rest.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (7)
1. a kind of rotary cultivator tool rest, it is characterised in that：Including tool rest body（1）, strengthen eaves（2）And reinforcement（3）；The tool rest
Body（1）For the hollow steel tube of round rectangle, in tool rest body（1）Middle thereof offer the blade jack of rectangle（11）,
The tool rest body（1）Upper end be plane, its lower end for the extension of both sides to the left and right cambered surface（12）；The tool rest body（1）
Front side wall on offer positive hexagonal through hole（13）, correspondence offers manhole on rear wall（14）, the positive hexagonal through hole
（13）With manhole（14）To be coaxially disposed；The tool rest body（1）Top surrounding be provided with outwardly reinforcement eaves
（2）, strengthen eaves（2）Upper edge and tool rest body（1）Upper surface flush, the reinforcement eaves（2）Corner be fillet；Adding
Strong eaves（2）With tool rest body（1）Reinforcement is also respectively provided between two narrower side walls（3）；
The tool rest body（1）The transverse width that the transverse width of lower end is held greatly thereon；The blade jack（11）Size
Match with the installation end of blade；The cambered surface（12）Radius matched with the external diameter of rotary tiller shaft；The reinforcement（3）
It is arranged at tool rest body（1）The center of two narrower side walls, its width is less than the wall wide of the side wall.
2. a kind of a kind of manufacture method of rotary cultivator tool rest as claimed in claim 1, it is characterised in that comprise the steps of：
A, blanking
, by processing dimension, seamless square steel will be cut into length with a chainsaw using the seamless square steel of 35# or the seamless square steel of 45# as raw material
Homogeneous pipeline section, removes saw kerf corner angle；
Eaves and reinforcement are strengthened in B, forging
The fixing frock and upper pressure frock adaptable with it is selected according to spoolpiece size；Frock will be fixed to be fixed under forcing press
Mould, upper pressure frock is fixed on the upper mould of first pressure machine, fixing frock is overlapped with the upper axis for pressing frock；Pipeline section is heated
It is put into afterwards in the slotted eye for fixing frock, then drives first pressure machine, pressure frock is forged with fixing frock matched moulds, high frequency
The reinforcement eaves and reinforcement of tool rest；
C, forging bottom cambered surface
The fixing frock that tool rest is filled in step B is removed, is fixed on after 180 ° of upset on the lower mould of second pressure machine, makes reinforcement
Eaves and reinforcement part are downward, do not forge bottom surface upwards, will push frock and are fixed on the upper mould of second pressure machine；Driving second
Forcing press, makes to push frock and fixing frock matched moulds, high frequency forges the cambered surface of tool rest bottom；
D, knife stamping holder mounting hole
After after natural cooling, according to processing dimension, punching press one positive six is distinguished on the side wall of tool rest using punch press lateral opening and one justify
Hole, produces novel rotary cultivator tool rest.
3. a kind of manufacture method of rotary cultivator tool rest as claimed in claim 2, it is characterised in that：The fixing frock is mould
Steel frock, the blade groove and strengthening groove that are connected is offered fixing inside frock, the strengthening groove be located above blade groove and
Strengthening groove size is more than blade groove size, and the strengthening groove is engaged with strengthening the outer surface of eaves and reinforcement, blade groove and pipe
The outer surface of section is engaged；
The upper pressure frock includes backform（41）, be arranged on backform（41）The drift I in center（42）, drift I（42）With backform
（41）Junction be fillet；The drift I（42）For rectangular punch, drift I（42）Front end, which is set, is easy to drift I（42）Insertion
Fix the chamfering of frock；
The frock that pushes includes bed die（51）, be arranged on bed die（51）The drift II in center（52）；The bed die（51）It is upper
End face is the arc being engaged with tool rest bottom cambered surface, bed die（51）Width be longer than the width of tool rest bottom cambered surface；Drift II
（52）For rectangular punch, its front end sets setting to be easy to drift II（52）Insertion fixes the chamfering of frock.
4. a kind of manufacture method of rotary cultivator tool rest as claimed in claim 3, it is characterised in that：The fixing frock, upper pressure
Frock, to push frock be mould steel frock；The edge of the blade groove and strengthening groove is fillet；The drift I（42）、
Drift II（52）Front end is respectively provided with 45 ° of chamferings；The bed die（51）The width of cambered surface is more than the cambered surface width of tool rest bottom, and it is wide
Degree difference is not less than 10mm.
5. a kind of manufacture method of rotary cultivator tool rest as claimed in claim 2, it is characterised in that：In the step B, pipeline section
Heating-up temperature is 800 ~ 1000 DEG C, and the stamping press of first pressure machine is 0.9 × 104~1.2×104MPa。
6. a kind of manufacture method of rotary cultivator tool rest as claimed in claim 2, it is characterised in that：In the step C, use
Step B remaining temperature, the stamping press of second pressure machine is 1.0 × 104~1.3×104MPa。
7. a kind of manufacture method of rotary cultivator tool rest as claimed in claim 2, it is characterised in that：In the step D, punch press
Stamping press is 0.5 × 104~0.8×104MPa。
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|---|---|---|---|
| CN201611165847.0A CN107243718A (en) | 2016-12-16 | 2016-12-16 | A kind of rotary cultivator tool rest and its manufacture method |
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| CN201611165847.0A CN107243718A (en) | 2016-12-16 | 2016-12-16 | A kind of rotary cultivator tool rest and its manufacture method |
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| CN2877220Y (en) * | 2006-01-13 | 2007-03-14 | 熊欣 | High Strength easy-installation rotary tiller knife bed |
| CN200962715Y (en) * | 2006-10-13 | 2007-10-24 | 王新芳 | Improved rotary cultivating tool apron |
| CN201069892Y (en) * | 2007-06-07 | 2008-06-11 | 陈永豪 | Rotary blade seat decreasing resistance |
| US20140323263A1 (en) * | 2008-10-12 | 2014-10-30 | Christopher C. Sappenfield | Rotary units, rotary mechanisms, and related applications |
| CN102989966A (en) * | 2012-10-19 | 2013-03-27 | 如皋市大生线路器材有限公司 | One-time casting forming mold for prop flange used for transformer station |
| CN102989946A (en) * | 2012-10-22 | 2013-03-27 | 如皋市大生线路器材有限公司 | One-step forging and forming process of pillar flange for transformer substation |
| CN103753136A (en) * | 2013-12-26 | 2014-04-30 | 南宁市南北动力有限公司 | Manufacturing method for rotary cultivator transmission box board |
| CN204403503U (en) * | 2014-12-24 | 2015-06-17 | 温州市研制阀门厂 | A kind of anti-valve body and the corrosion-prone forging valve body in pipe fitting joint |
| CN104907135A (en) * | 2015-06-05 | 2015-09-16 | 桂林天祥机械制造有限公司 | Raymond mill scraper knife seat and manufacture method thereof |
| CN205289671U (en) * | 2015-10-27 | 2016-06-08 | 刘天平 | Shell mould clamping device bunch is cast to rotary cultivator blade holder |
| CN205142793U (en) * | 2015-12-02 | 2016-04-13 | 李等全 | Rotary tillage blade holder |
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