CN107409496A - A kind of pivot plow - Google Patents
A kind of pivot plow Download PDFInfo
- Publication number
- CN107409496A CN107409496A CN201710828149.2A CN201710828149A CN107409496A CN 107409496 A CN107409496 A CN 107409496A CN 201710828149 A CN201710828149 A CN 201710828149A CN 107409496 A CN107409496 A CN 107409496A
- Authority
- CN
- China
- Prior art keywords
- upset
- cylinder
- auxiliary
- forebay
- pivot plow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B3/00—Ploughs with fixed plough-shares
- A01B3/36—Ploughs mounted on tractors
- A01B3/40—Alternating ploughs
- A01B3/42—Turn-wrest ploughs
- A01B3/421—Turn-wrest ploughs with a headstock frame made in one piece
- A01B3/4215—Turn-wrest ploughs with a headstock frame made in one piece the headstock being provided with two or more hydraulic cylinders
-
- 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
- A01B15/00—Elements, tools, or details of ploughs
- A01B15/20—Special adjusting means for tools of ploughs drawn by, or mounted on tractors working on hillsides or slopes
Abstract
The present invention provides a kind of pivot plow, including the forebay and afer bay connected by support meanss, two row's plough bodys are symmetrically fixed with the forebay and the afer bay, the forebay is connected to transporting equipment by turning device, and the rear end of the afer bay is provided with support wheel；The pivot plow also sets up auxiliary turning device, including auxiliary upset cylinder, hydraulic accumulator and choke valve, one end of the auxiliary upset cylinder is articulated with the fixed frame, and the connection hydraulic accumulator, the piston rod of the auxiliary upset cylinder other end is articulated with the support beam, and the choke valve connects the hydraulic accumulator.The oil cylinder valve of upset cylinder is replaced using hydraulic accumulator and choke valve, avoids it from locking pivot plow and can not pivot, and avoids damaging the situation of turning device caused by oil cylinder valve is insensitive.
Description
Technical field
The present invention relates to agricultural machinery technological field, more particularly to a kind of pivot plow.
Background technology
In some pivot plow mechanism assemblies, afer bay forms a counterweight (balance weight), even if pivot passes through dead-centre position
When, it plough is entered resting position.In order to realize the upset commutation action that can control these pivot plow mechanism assemblies, set
There is an additional hydraulic cylinder, make further promote pivot plow mechanism assembly complete during the latter half of upset commutation action
Into upset.This additional hydraulic cylinder（Also referred to as auxiliary upset cylinder）Operation need it is synchronous with the operation of other hydraulic cylinders, with
Just auxiliary upset cylinder is functioned to appropriate at the time of.And this needs a relative complex and sensitive hydraulic jack valve,
For judging the position of plough body during commutation action is overturn.If auxiliary upset cylinder in switching process with other hydraulic cylinders not
It is synchronous, then it may damage turning device.
Some pivot plow mechanism assembly institute another problems are, between working run, due to by outer masterpiece
With and external force along its longitudinal axis turn round, and because hold it in appropriate location unique power be pivot plow mechanism assembly weight
Amount, therefore pivot plow mechanism assembly may depart from the plowing position of its script.In order to avoid there is such case, plow mechanism is overturn
Assembly is mounted with a locking device, in some cases, auxiliary upset cylinder or the more specifically valve of auxiliary upset cylinder
Just serve the effect of locking device.However, this is not always favourable, because in some cases, such as when tractor leads to
When crossing barrier, pivot plow mechanism assembly is required to move pivotally, to avoid pivot plow mechanism assembly by barrier
Destroy.
The content of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of pivot plow, rollover effect are more preferable.
The present invention is achieved through the following technical solutions, there is provided a kind of pivot plow, including connected by support meanss
Two row's plough bodys are symmetrically fixed with forebay and afer bay, the forebay and the afer bay, the forebay is by turning over
Rotary device is connected to transporting equipment, and the rear end of the afer bay is provided with support wheel；Wherein,
The turning device includes support beam, the first upset hydraulic cylinder, the second upset hydraulic cylinder and fixed frame, the plough body and consolidated
Due in the support beam, one end of the first liquid upset cylinder pressure and the second upset hydraulic cylinder is individually fixed in described solid
To determine in frame, the piston rod of the other end of the first liquid upset cylinder pressure is articulated with the support beam by first connecting rod arm,
The piston rod of the other end of the second upset hydraulic cylinder is articulated with the support beam by second connecting rod arm.
Preferably, the pivot plow also includes auxiliary turning device, the auxiliary turning device is fixed on the fixation
Between frame and the support beam.
Turned over preferably, the auxiliary turning device includes auxiliary upset cylinder, hydraulic accumulator and choke valve, the auxiliary
The one end for turning cylinder is articulated with the fixed frame, and connects the hydraulic accumulator, the work of the auxiliary upset cylinder other end
Stopper rod is articulated with the support beam, and the choke valve connects the hydraulic accumulator.
The present invention connects hydraulic accumulator and choke valve on auxiliary upset cylinder, and hydraulic accumulator is used to store hydraulic energy
Amount, absorption pressure pulsation and surge, maintain the stabilization of system pressure.One end storage gas of accumulator, the other end is liquid
System pressure is pressed, hydraulic pressure promotes piston, and compressed gas, the pressure energy of liquid is stored in gas, when under hydraulic pressure
During drop, the pressure of accumulator gas promotes piston release energy, until identical with system pressure or move to range.This hair
It is bright that hydraulic accumulator and choke valve are connected on cylinder by being overturn in auxiliary, using the principle of hydraulic accumulator, avoid because auxiliary is turned over
Turn the cylinder situation for causing to damage pivot plow asynchronous with other hydraulic cylinders, and reach auxiliary using hydraulic accumulator and choke valve and turn over
Turn the effect of the oil cylinder valve of cylinder, avoid because pivot plow runs into the problem of barrier can not pivot caused by oil cylinder valve door locking.
Preferably, it is also associated with pressure indicator on the hydraulic accumulator.Pressure indicator can real hydraulic pressure pressure accumulation
The pressure of device, convenient use.
The support meanss include support body, the lifting device for lifting the afer bay and moved for transmitting upset
The hinge of work, the lifting device are located at the afterbody of the forebay, and the both ends of the hinge connect the forebay respectively
The front end of tail end and the afer bay.Need to lift afer bay first with lifting device during upset, then start upset dress
Put, the rotary movement of turning device is conveyed to afer bay by hinge, makes afer bay and forebay together under turning device effect
Upset.
Technical scheme provided in an embodiment of the present invention can include following beneficial effect：
The present invention provides a kind of pivot plow, including the forebay and afer bay connected by support meanss, the forebay and institute
State and two row's plough bodys are symmetrically fixed with afer bay, the forebay is connected to transporting equipment, the rear machine by turning device
The rear end of frame is provided with support wheel；The pivot plow also sets up auxiliary turning device, including auxiliary upset cylinder, hydraulic accumulator and
Choke valve, one end of the auxiliary upset cylinder is articulated with the fixed frame, and connects the hydraulic accumulator, the auxiliary
The piston rod of the upset cylinder other end is articulated with the support beam, and the choke valve connects the hydraulic accumulator.The present invention is set
Auxiliary upset cylinder is put, one end of auxiliary upset cylinder connects hydraulic accumulator, choke valve, hydraulic pressure pressure accumulation are connected on hydraulic accumulator
One end storage gas of device, the other end connect the hydraulic system pressure of overturning oil cylinder, and the hydraulic pressure of overturning oil cylinder promotes piston
Motion, compressed gas, the pressure reservoir of hydraulic system is in gas, and when hydraulic pressure declines, the pressure of gas promotes piston
Release energy, it is known that gas pressure is identical with hydraulic system pressure or moves to range, and hydraulic accumulator coordinates auxiliary
Cylinder motion is overturn, makes auxiliary upset cylinder and other hydraulic cylinder synchronous, avoids turning device from being damaged；And the hydraulic pressure that the present invention is set stores
Depressor will not lock pivot plow, and when the tractor is broken the barriers, pivot plow can move pivotally, and avoid its from receiving barrier
Influence.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or technical scheme of the prior art
There is the required accompanying drawing used in technology description to be briefly described, it is clear that, to those skilled in the art, not
On the premise of paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of pivot plow provided in an embodiment of the present invention.
Fig. 2 is the view that a kind of pivot plow provided in an embodiment of the present invention is observed along the straight line A-A in Fig. 1.
Fig. 3 is another view that a kind of pivot plow provided in an embodiment of the present invention is observed along the straight line A-A in Fig. 1.
Shown in figure：1- support sections, 2- forebays, 3- afer bays, 4- support meanss, 4.1- lifting devices, 4.11-
Hinge, 5- turning devices, 6- upset hydraulic cylinders, 7- upset hydraulic cylinders, 8- auxiliary upset cylinders, 9- hydraulic accumulators, 10- supports
Beam, 12- plough bodys, 13- plough bodys, 14- piston rods, 15- piston rods, 16- pitman arms, 17- pitman arms, 18- longitudinal axis, 19- pins,
20- piston rods, 21- pressure indicators, 22- tractors, 23- pins, 24- pins, 25- pins, 26- pins, 27- fixed frames, 28- supports
Wheel, 29- pins, 30- choke valves, 31- pins, 32- pins.
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the present invention, the present invention will be implemented below
Technical scheme in example is clearly and completely described, it is clear that described embodiment is only that a present invention part is implemented
Example, rather than whole embodiments.Based on the embodiment in the present invention, those skilled in the art are not making creative work
Under the premise of the every other embodiment that is obtained, should all belong to protection scope of the present invention.
Referring to Fig. 1 to Fig. 3, the structural representation of a kind of pivot plow and its turning device provided in an embodiment of the present invention is shown
Figure.
From Fig. 1 to Fig. 3, the pivot plow includes the forebay 2 and afer bay 3 connected by support meanss 4, described
Two row's plough bodys symmetrical above and below are respectively and fixedly provided with forebay 2 and the afer bay 3, the forebay 2 is connected by turning device 5
To transporting equipment, the rear end of the afer bay 3 is provided with support wheel 28；Wherein, the turning device 5 includes support beam 10, the
One upset hydraulic cylinder 6, second overturns hydraulic cylinder 7 and fixed frame 27, the plough body and is fixed in the support beam 10, and described the
One liquid overturns cylinder pressure 6 and one end of the second upset hydraulic cylinder 7 is individually fixed on the fixed frame 27, first liquid
The piston rod 15 for overturning the other end of cylinder pressure 6 is articulated with the support beam 10 by first connecting rod arm 17, second upset
The piston rod 14 of the other end of hydraulic cylinder 7 is articulated with the support beam 10 by second connecting rod arm 16.
In the present embodiment, as shown in figure 1, the pivot plow is connected to tractor 22, the forebay by support section 1
2 include six pairs of plough bodys, and the afer bay 3 includes four pairs of plough bodys, and forebay 2 and afer bay 3 have two row's plough bodys, each of which row's bag
Include multiple left plow bodies 12 and multiple right plow bodies 13.Each row's left plow body 12 and right plow body 13 include each plough from each row
Body, and a plough body in every a pair of plough bodys is suitable to ploughing on the right, and another plough body is suitable in left side ploughing.Forebay 2
180 degree is overturn by turning device 5 with afer bay 3, completes to change to the work of right plow body 13 from left plow body 12, i.e. the He of left plow body 12
Right plow body 13 is symmetrical above and below relative to support beam 10, and when left plow body 12 works, right plow body 13 is above it, right with left plow body 12
Claim.Support meanss 4 are arranged between forebay 2 and afer bay 3, and support meanss 4 include support body, for transport and
Lift the lifting device 4.1 of pivot plow and hinge 4.2 for transmitting rotary movement during rotary movement, during normal work, branch
Support body is used to support forebay 2 and afer bay 3 to move, and support body can be a wheel, it is necessary to when overturning, lifting device
4.1 lift afer bay 3, and the rotary movement of the turning device 5 of forebay 2 passes to afer bay 3 by hinge 4.2, makes rear machine
Frame is overturn, and the lifting device 4.1 can be a lift cylinder.
Fig. 2 is the structural representation of turning device 5, the turning device 5 include two upset hydraulic cylinders, respectively first
Liquid overturns cylinder pressure 6 and the second upset hydraulic cylinder 7, and the first upset hydraulic cylinder 6 and second overturns hydraulic cylinder 7 and passes through connecting rod respectively
Device is connected to support beam 10, and linkage includes the first upset hydraulic cylinder 6 and second overturning hydraulic cylinder 7 and the pivot of support beam 10
Turn two pitman arms of connection：First connecting rod arm 17 and second connecting rod arm 16, wherein, first connecting rod arm 17 is attached pivotally to
On the pin 24 on pin 23 and support beam 10 on the piston rod 15 of one upset hydraulic cylinder 6, second connecting rod arm 16 is attached pivotally to
On the pin 26 on pin 25 and support beam 10 on the piston rod 14 of second upset hydraulic cylinder 7.The pivot plow that the present embodiment provides is also
Including aiding in turning device, auxiliary turning device includes auxiliary upset cylinder 8, hydraulic accumulator 9 and choke valve 30, the auxiliary and turned over
The one end for turning cylinder 8 is articulated with the fixed frame 27, and connects the hydraulic accumulator 9, the auxiliary upset other end of cylinder 8
Piston rod 20 be articulated with the support beam 10, the choke valve 30 connects the hydraulic accumulator 9.The hydraulic accumulator
Pressure indicator 21 is also associated with 9.One end of the piston rod 20 of auxiliary upset cylinder 8 in support beam 10 is provided with one can
With the pin 19 of pivot, the other end of auxiliary upset cylinder 8 is pivotally mounted on the pin 29 on the fixed frame 27 of turning device 5.
It is that two rows plough in forebay 2 shown in Fig. 1 that support beam 10, which further carries plough body 12 and two plough bodys 12 and 13 shown in 13, Fig. 2,
Therefore first pair of plough body in body, plough body 12 and 13 constitute guide's plough body on ploughing direction.In fig. 2, plough body 12 is current
In plowing position.Support beam 10 is pivotally arranged on the longitudinal axis 18 of the support section 1 of pivot plow, longitudinal axis 18 and ground
Parallel, support beam 10 can rotate around longitudinal axis, complete the upset of plough body.
Pressure indicator 21, choke valve 30 and auxiliary upset cylinder 8 are connected to hydraulic accumulator 9, and these parts form independent
And separation system, and first upset hydraulic cylinder 6 and second overturn hydraulic cylinder 7 be connected to tractor 22 hydraulic system and can
Pass through the control panel on tractor（It is not shown）Control.Choke valve 30 can adjust auxiliary upset cylinder 8 and the system of hydraulic accumulator 9
Volume and gas compression context in system.By these regulations, the characteristic of auxiliary upset cylinder 8 can be assigned, for example, being filled in ploughing
Put the elastic force during farming.Choke valve 30 is connected to adjusting means（It is not shown）, in the present embodiment, hydraulic accumulator 9 is film
Formula accumulator or piston accumulator.
First upset hydraulic cylinder 6 and second overturns hydraulic cylinder 7 and is attached pivotally to turning device 5 by pin 31 and 32 respectively
Fixed frame 27 on.Shown in Fig. 2, pivot plow is arranged such that plough body 12 is in cultivation condition.Tractor 22 will be adjusted
Head and another new furrow is ploughed by another row's plough body 13.Before pivot plow mechanism assembly 1 can be overturn, pivot plow passes through
Lifting device 4.1 on tractor 22 and support meanss 4 lifts from soil；Equally, after rotary movement or movement is completed,
Pivot plow will be lowered to continue farming in soil.The control for turning device 5 can be operated in the driver's cabin of tractor 22
Panel（It is not shown）With the pivot plow of the upset present invention.Start the piston rod extended in the second upset hydraulic cylinder 7 by hydraulic oil
14, the piston rod 14 crosses pitman arm 16 and overturns pivot plow, and second connecting rod arm 16 pivots around the longitudinal axis 18 of pivot plow
Ground connects piston rod 14 and pivot plow.The longitudinal axis is parallel to the ground.On flexible drive plow frame by piston rod in oil cylinder
Forward and reverse plough body make flip vertical motion, alternately change and arrive operating position.Cylinder body is with being connected on plow frame in described overturning oil cylinder
On oil cylinder seat be hinged, have the piston rod for doing stretching motion in cylinder body, central shaft be fixed with plow frame, outside central shaft
Central axle sleeve rear end is hinged with piston rod, and front end passes through and is fixed on hanger bracket crossbeam, piston rod by with oil cylinder seat, plow frame
Connection drives central shaft to do gyration in central axle sleeve.From the position shown in Fig. 2, pivot plow will turn over along clockwise direction
Turn.When the piston rod 14 of second hydraulic cylinder 7 extends, the piston rod 20 of auxiliary upset cylinder 8 will be retracted, and in hydraulic pressure pressure accumulation
A pressure will be produced in device 9.
In figure 3, pivot plow has overturn around longitudinal axis 18 and by dead-centre position, and first overturns hydraulic cylinder 6
Piston rod 15 has begun to retract, and the second upset hydraulic cylinder 7 and its piston rod 14 extend completely, are pivoted by first connecting rod arm 17
The retraction that ground is connected to the second piston bar 15 of pivot plow will be helpful to plough body 13 and enter its plowing position in a controlled manner.The
One upset hydraulic cylinder 6 is used as having a choke valve（It is not shown）Liquid braking device, choke valve be by change throttle section
Or chock length can adjust the choke valve to control the upset of the latter half of rotary movement to control the valve of fluid flow
Commutating speed.Substantially, new plowing position, and the first upset hydraulic cylinder are turned to by the weight by pivot plow
6 can ensure that the stable and controllable upset commutation action of pivot plow.
In some cases, such as on the slope or the counterweight due to afer bay 3, even if being turned over by dead-centre position
Unsuitable resting position will be also in by turning plough.In order to ensure the controllable upset of pivot plow in these cases, the present invention are real
Apply example and have been provided for auxiliary upset cylinder 8, it uses the pressure gathered in hydraulic accumulator 9 during the first half of rotary movement
Power, to promote during the latter half of rotary movement or continue to move by the pivot plow of any resting position.
The auxiliary upset cylinder 8 that support beam 10 is pivotally connected to by pin 19 promotes pivot plow in reverses direction（Currently
The direction of pivot plow rotary movement is shown with arrow in Fig. 3 34）.In figure 3, the piston rod 20 of auxiliary upset cylinder 8 is almost complete
Retract and will stretch out to help pivot plow to be totally turned over and enter its new plowing position.As described above, passing through dead point
Use the build pressure in hydraulic accumulator 9 after position, and piston rod 20 stretched out by build pressure and by pivot plow to
Under be pushed to plowing position.
After pivot plow is overturn and is reduced to new plowing position, tractor has begun to another group of new furrow of ploughing,
Auxiliary upset cylinder 8 will act as elastic retaining elements on pivot plow, with hold it in appropriate plowing position and prevent its
Lifted by crane under the influence of external force.If however, when tractor passes through barrier, elastic construction will allow plough from its plowing position liter
Rise.It is most of overturn plough in the case of, tractor will reverse end for end in this process.
The volume and gas compression context in hydraulic accumulator 9 are adjusted by choke valve 30, to ensure auxiliary upset cylinder 8
Dual-use function：First during the latter half or ploughing device of upset commutation action move, push down on auxiliary upset cylinder 8
Pivot plow；Secondly, when ploughing device can keep its plowing position, and the also temporary transient movement of permission pivot plow during operation.
In other embodiments of the invention, the alternative as the auxiliary upset cylinder 8 shown in Fig. 2 and Fig. 3, can also make
By the use of mechanical spring as auxiliary turning device, in the alternative, it is no longer necessary to hydraulic accumulator 9, pressure indicator 21 or section
Flow valve 30.Energy storage needed for rotary movement stretches in the mechanical spring of compression when by dead-centre position and in spring
The energy is released afterwards.By the characteristic of mechanical spring, make the dual-use function of spring turn into auxiliary turning device.
Another selection is to use gas spring as auxiliary turning device.The energy accumulation of rotary movement in gas spring,
Therefore an energy accumulator is also served as when compressed, when passing through dead-centre position and energy after spring stretches
It is released.By the characteristic of gas spring, make the dual-use function of spring also turn into auxiliary turning device.
In the present invention, aiding in the system and function of turning device or hydraulic cylinder and accumulator can be referred to as including all portions
The actuator of part and its function.In addition, accumulator, i.e. membrane type accumulator or piston accumulator, can also be by any other
The accumulator of type with identical function replaces, such as pneumatic pressure accumulator.
Certainly, described above is also not limited to the example above, the technical characteristic of the invention without description can by or
Realized, will not be repeated here using prior art；It is not to this that above example, which is merely to illustrate technical scheme,
The limitation of invention, the present invention is described in detail with reference to preferred embodiment, one of ordinary skill in the art should
Understand, the variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the present invention
Without departure from spirit of the invention, it should also belong to claims of the invention.
Claims (3)
1. a kind of pivot plow, it is characterised in that including passing through support meanss（4）The forebay of connection（2）And afer bay（3）, institute
State forebay（2）With the afer bay（3）On be respectively and fixedly provided with two row's plough bodys symmetrical above and below, the forebay（2）Pass through upset
Device（5）It is connected to transporting equipment, the afer bay（3）Rear end be provided with support wheel（28）；Wherein,
The turning device（5）Including support beam（10）, first upset hydraulic cylinder（6）, second upset hydraulic cylinder（7）With fixed machine
Frame（27）, the plough body is fixed on the support beam（10）On, the first upset hydraulic cylinder（6）With the described second upset hydraulic pressure
Cylinder（7）One end be individually fixed in the fixed frame（27）On, the first upset hydraulic cylinder（6）The other end piston rod
（15）Pass through first connecting rod arm（17）It is articulated with the support beam（10）On, the second upset hydraulic cylinder（7）The other end
Piston rod（14）Pass through second connecting rod arm（16）It is articulated with the support beam（10）On；
The pivot plow also includes auxiliary turning device, and the auxiliary turning device is fixed on the fixed frame（27）With it is described
Support beam（10）Between, the auxiliary turning device includes auxiliary upset cylinder（8）, hydraulic accumulator（9）And choke valve（30）, institute
State auxiliary upset cylinder（8）One end be articulated with the fixed frame（27）On, and connect the hydraulic accumulator（9）, it is described auxiliary
Help upset cylinder（8）The piston rod of the other end（20）It is articulated with the support beam（10）On, the choke valve（30）Connect the liquid
Press accumulator（9）.
A kind of 2. pivot plow according to claim 1, it is characterised in that the hydraulic accumulator（9）On be also associated with pressing
Power indicator（21）.
A kind of 3. pivot plow according to claim 2, it is characterised in that the support meanss（4）Including support body, use
In the lifting afer bay（3）Lifting device（4.1）With the hinge for transmitting rotary movement（4.2）, the lifting device
（4.1）Positioned at the forebay（2）Afterbody, the hinge（4.2）Both ends connect the forebay respectively（2）Tail end and
The afer bay（3）Front end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828149.2A CN107409496A (en) | 2017-09-14 | 2017-09-14 | A kind of pivot plow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710828149.2A CN107409496A (en) | 2017-09-14 | 2017-09-14 | A kind of pivot plow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107409496A true CN107409496A (en) | 2017-12-01 |
Family
ID=60432327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710828149.2A Pending CN107409496A (en) | 2017-09-14 | 2017-09-14 | A kind of pivot plow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107409496A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019275A2 (en) * | 1979-05-14 | 1980-11-26 | Rudolf Steigerwald | Turn-wrest plough |
| US5603381A (en) * | 1993-05-04 | 1997-02-18 | Kverneland Klepp As | Multi-share plough |
| WO2005043974A1 (en) * | 2003-11-06 | 2005-05-19 | Kongskilde Industries A/S | A device in an arrangement for a reversible plough |
| US20130056234A1 (en) * | 2010-05-08 | 2013-03-07 | Lemken Gmbh & Co. Kg | Semi-Mounted Reversible Plow with Rotary Amplifier |
| CN203261648U (en) * | 2013-05-30 | 2013-11-06 | 安徽京田机械股份有限公司 | Hydraulic dolphin-shaped turnover plow |
| CN207124854U (en) * | 2017-09-14 | 2018-03-23 | 山东农业大学 | A kind of pivot plow |
-
2017
- 2017-09-14 CN CN201710828149.2A patent/CN107409496A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0019275A2 (en) * | 1979-05-14 | 1980-11-26 | Rudolf Steigerwald | Turn-wrest plough |
| US5603381A (en) * | 1993-05-04 | 1997-02-18 | Kverneland Klepp As | Multi-share plough |
| WO2005043974A1 (en) * | 2003-11-06 | 2005-05-19 | Kongskilde Industries A/S | A device in an arrangement for a reversible plough |
| US20130056234A1 (en) * | 2010-05-08 | 2013-03-07 | Lemken Gmbh & Co. Kg | Semi-Mounted Reversible Plow with Rotary Amplifier |
| CN203261648U (en) * | 2013-05-30 | 2013-11-06 | 安徽京田机械股份有限公司 | Hydraulic dolphin-shaped turnover plow |
| CN207124854U (en) * | 2017-09-14 | 2018-03-23 | 山东农业大学 | A kind of pivot plow |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171201 |
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| WD01 | Invention patent application deemed withdrawn after publication |