CN110637524A - Turnover plow with overload protection and overload protection method thereof - Google Patents
Turnover plow with overload protection and overload protection method thereof Download PDFInfo
- Publication number
- CN110637524A CN110637524A CN201911050884.0A CN201911050884A CN110637524A CN 110637524 A CN110637524 A CN 110637524A CN 201911050884 A CN201911050884 A CN 201911050884A CN 110637524 A CN110637524 A CN 110637524A
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- China
- Prior art keywords
- overload protection
- hydraulic oil
- oil cylinder
- plow
- connecting rod
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- 230000007306 turnover Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000003921 oil Substances 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 239000010985 leather Substances 0.000 claims description 7
- 230000002441 reversible effect Effects 0.000 claims description 7
- 238000009313 farming Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000002689 soil Substances 0.000 abstract description 5
- 238000003971 tillage Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
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
-
- 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
-
- 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
- A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
- A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses a turnover plow with overload protection and an overload protection method thereof, which solve the problem that a plow body and a plow beam are easy to damage when a hydraulic turnover plow in the prior art is overloaded. The invention comprises a fixed frame and a mounting frame, wherein the mounting frame is hinged with the fixed frame, a girder and an auxiliary beam are arranged on the mounting frame, a large plough body is arranged on the girder, an auxiliary plough body is arranged on the auxiliary beam, an overload protection mechanism is arranged on the mounting frame, and the overload protection mechanism is connected with the fixed frame. The invention can automatically lift the plough body and other parts when the turnover plough meets an obstacle or the plough body receives too large resistance through the overload protection mechanism, thereby avoiding the damage of the plough tool and the tractor; and the pressure of the accumulator and the hydraulic oil filled in the oil cylinder can be conveniently adjusted, so that the turnover plow provided with the overload protection device can adjust the pressure according to different soil resistances, and the application range is wide.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a turnover plow with overload protection and an overload protection method thereof.
Background
The hydraulic turnover plow is a tillage method for loosening soil by turning over the soil with a plow body, and the tillage depth can reach more than 40 cm. In the process of plowing, the plow body can touch obstacles such as stones or tree roots in soil, the plow body and the plow beam are fastened and connected through bolts in a rigid connection state, the bolts can be broken when the plow body meets large obstacles, and machines and tools can be deformed or a tractor can be damaged when the plow body meets large obstacles. The rigid connection also causes loosening and breakage of the connecting bolts at the joints after long-term cultivation, and the replacement of the bolts takes a long time, thereby reducing the working efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the turnover plow with the overload protection and the overload protection method thereof, and solves the problem that a plow body and a plow beam are easy to damage when the hydraulic turnover plow is overloaded in the prior art.
The technical scheme of the invention is realized as follows: the utility model provides a turnover plow with overload protection, includes mount and mounting bracket, and the mounting bracket is articulated with the mount, is equipped with girder and auxiliary girder on the mounting bracket, is equipped with the big plough body on the girder, is equipped with the auxiliary plough body on the auxiliary girder, is equipped with overload protection mechanism on the mounting bracket, and overload protection mechanism is connected with the mount.
The mounting bracket is a hollow beam body, the overload protection mechanism comprises an energy accumulator and a hydraulic oil cylinder which are mounted at the tail part of the hollow beam body, the energy accumulator is connected with a barrel body of the hydraulic oil cylinder through a high-pressure oil pipe, a link mechanism is arranged in the hollow beam body, one end of the link mechanism is connected with the telescopic end of the hydraulic oil cylinder, and the other end of the link mechanism is hinged with the fixing bracket.
The connecting rod mechanism comprises a connecting rod and a connecting block, the telescopic end of the hydraulic oil cylinder is connected with the connecting rod through the connecting block, one end of the connecting rod is hinged with the connecting block, and the other end of the connecting rod is hinged with the fixing frame through a first pin shaft.
The connecting block can move in the mounting rack under the action of the hydraulic oil cylinder and the connecting rod, and the central axis of the hydraulic oil cylinder is overlapped with the central axis of the connecting rod.
The front end of mounting bracket is fixed with the connecting seat, is equipped with the bulb screw on the connecting seat, and the screw rod end and the connecting seat threaded connection of bulb screw, the bulb end of bulb screw and the spherical recess on the mount cooperate.
The fixing frame is provided with a connecting lug seat which is hinged with a connecting rod of the overload protection mechanism.
An overload protection method for a reversible plow with overload protection, comprising the steps of:
s1: high-purity nitrogen with certain pressure is pre-filled into the energy accumulator leather bag, and the inflation pressure is lower than the working pressure of the hydraulic oil cylinder;
s2: before turning plow cultivation, firstly filling hydraulic oil with certain pressure into the energy accumulator and the hydraulic oil cylinder;
s3: in the process of turning plow cultivation, when a plow body touches an obstacle, the whole mounting frame rotates and lifts up around the first pin shaft and the ball head screw due to increased resistance, at the moment, the extension of the hydraulic cylinder is increased under the pulling of the connecting rod, so that hydraulic oil in the hydraulic cylinder flows to the energy accumulator, a leather bag in the energy accumulator is extruded, and the internal pressure of the energy accumulator is increased;
s4: after the mounting frame is lifted to cross the obstacle, hydraulic oil in the energy accumulator flows back to the hydraulic oil cylinder again under the action of pressure, so that the extension of the hydraulic oil cylinder is reduced, the hydraulic oil cylinder pulls the connecting rod, the mounting frame is finally returned to the horizontal position, the farming depth is normal, and the pressure in the system reaches the original pressure.
The invention can automatically lift the plough body and other parts when the turnover plough meets an obstacle or the plough body receives too large resistance through the overload protection mechanism, thereby avoiding the damage of the plough tool and the tractor; and the pressure of the accumulator and the hydraulic oil filled in the oil cylinder can be conveniently adjusted, so that the turnover plow provided with the overload protection device can adjust the pressure according to different soil resistances, and the application range is wide. In addition, because the turnover plow can be automatically lifted after encountering an obstacle, the resistance is reduced, the plow and the tractor can be effectively protected, the machine halt maintenance and the accessory replacement in the farming process are avoided, the working efficiency is greatly improved, the market demand is met, and the turnover plow has higher popularization value.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic view of the present invention in a normal farming state.
Fig. 2 is a schematic diagram of the state of the invention when encountering an obstacle.
Fig. 3 is a schematic view of the internal structure of the mount of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, embodiment 1 is a turnover plow with overload protection, which comprises a fixed frame 4 and a mounting frame 7, wherein the mounting frame 7 is hinged with the fixed frame 4, relative rotation and swinging can occur between the fixed frame 7 and the fixed frame 4, and the fixed frame 4 is connected with a tractor connecting piece. A girder 10 and an auxiliary girder 11 are fixedly arranged on the mounting frame 7, a large plough body 1 is arranged on the girder 10, an auxiliary plough body 2 is arranged on the auxiliary girder 11, and an overload protection mechanism is arranged on the mounting frame 7 and is connected with the mounting frame 4. Namely, an overload protection mechanism is arranged between the mounting frame and the fixing frame, the rigid connection relation between the fixing frame and the mounting frame is changed, and overload protection is carried out according to different pressures.
Further, as shown in fig. 2, the mounting frame 7 is a hollow beam body, the overload protection mechanism comprises an energy accumulator 9 and a hydraulic oil cylinder 3 which are mounted at the tail of the hollow beam body, and a certain amount of high-purity nitrogen is filled in a leather bag of the energy accumulator. The energy accumulator 9 is connected with an upper cavity of the cylinder body of the hydraulic oil cylinder 3 through a high-pressure oil pipe 12 and is used for realizing the circulation of hydraulic oil between the energy accumulator and the upper cavity and realizing pressure regulation. The hollow beam body is internally provided with a link mechanism, one end of the link mechanism is connected with the telescopic end of the hydraulic oil cylinder 3, and the other end of the link mechanism is hinged with the fixed frame 4. The link mechanism is hinged with the fixed frame, when encountering an obstacle, the resistance is increased, and the link mechanism pulls the hydraulic oil cylinder to extend out; after the tractor crosses an obstacle, under the action of the energy accumulator, the hydraulic oil cylinder is recovered, the link mechanism is pulled to reset, non-rigid follow-up connection is realized, uneven resistance caused by overload is effectively eliminated, and overload damage to the plowshare and the tractor is avoided.
Further, link mechanism includes connecting rod 8 and connecting block 13, and hydraulic cylinder 3's flexible end passes through connecting block 13 and is connected with connecting rod 8, and the connecting block can move at mounting bracket (in the hollow beam body). One end of the connecting rod 8 is hinged with the connecting block 13, and the other end is hinged with the fixed frame 4 through the first pin shaft 5. Normal state, connecting rod are in the horizontality, and when meetting the barrier, the mounting bracket upwards lifts, and the connecting rod rotates around first round pin axle, upwards swings. The connecting block 13 can move in the mounting rack 7 under the action of the hydraulic oil cylinder 3 and the connecting rod 8, a sliding rail can also be arranged in the mounting rack, and the connecting block slides on the sliding rail. The central axis of the hydraulic oil cylinder 3 is coincident with the central axis of the connecting rod 8, so that the force can be stably transmitted.
Further, as shown in fig. 3, a connecting seat 14 is fixedly arranged at the front end of the mounting frame 7, a ball screw 6 is arranged on the connecting seat 14, a screw end of the ball screw 6 is in threaded connection with the connecting seat 14, and a ball end of the ball screw 6 is matched with a spherical groove 15 on the mounting frame 4 and can rotate in the spherical groove. The fixed frame 4 is provided with a connecting lug seat 16, and the connecting lug seat 16 is hinged with the connecting rod 8 of the overload protection mechanism through a first pin shaft. When the mounting rack swings up and down, the connecting rod swings up and down around the first pin shaft.
s1: high-purity nitrogen with certain pressure is pre-filled into the energy accumulator leather bag, and the inflation pressure is lower than the working pressure of the hydraulic oil cylinder;
s2: before turning plow cultivation, firstly filling hydraulic oil with certain pressure into the energy accumulator and the hydraulic oil cylinder;
s3: in the process of turning plow cultivation, when a plow body touches an obstacle, the whole mounting frame rotates and lifts up around the first pin shaft and the ball head screw due to increased resistance, at the moment, the extension of the hydraulic cylinder is increased (the hydraulic cylinder extends) under the pulling of the connecting rod, so that the hydraulic oil in the hydraulic cylinder flows to the energy accumulator and extrudes a leather bag in the energy accumulator, and the internal pressure of the energy accumulator is increased, as shown in figure 1;
s4: after the mounting frame is lifted and the plough body passes through the obstacle, hydraulic oil in the energy accumulator flows back to the hydraulic oil cylinder again under the action of pressure, so that the extension of the hydraulic oil cylinder is reduced (the hydraulic oil cylinder is recycled), the hydraulic oil cylinder pulls the connecting rod, finally, the mounting frame returns to the horizontal position, the farming depth reaches the normal state, and the pressure in the system reaches the original pressure, as shown in fig. 2.
The other structure is the same as embodiment 1.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A reversible plow with overload protection is characterized in that: the large plough body type agricultural tractor is characterized by comprising a fixing frame (4) and a mounting frame (7), wherein the mounting frame (7) is hinged to the fixing frame (4), a girder (10) and an auxiliary beam (11) are arranged on the mounting frame (7), a large plough body (1) is arranged on the girder (10), an auxiliary plough body (2) is arranged on the auxiliary beam (11), an overload protection mechanism is arranged on the mounting frame (7), and the overload protection mechanism is connected with the fixing frame (4).
2. The reversible plow with overload protection as defined in claim 1 wherein: the mounting frame (7) is a hollow beam body, the overload protection mechanism comprises an energy accumulator (9) and a hydraulic oil cylinder (3) which are mounted at the tail of the hollow beam body, the energy accumulator (9) is connected with a cylinder body of the hydraulic oil cylinder (3) through a high-pressure oil pipe (12), a link mechanism is arranged inside the hollow beam body, one end of the link mechanism is connected with the telescopic end of the hydraulic oil cylinder (3), and the other end of the link mechanism is hinged with the fixing frame (4).
3. The reversible plow with overload protection as defined in claim 2 wherein: the connecting rod mechanism comprises a connecting rod (8) and a connecting block (13), the telescopic end of the hydraulic oil cylinder (3) is connected with the connecting rod (8) through the connecting block (13), one end of the connecting rod (8) is hinged to the connecting block (13), and the other end of the connecting rod is hinged to the fixing frame (4) through a first pin shaft (5).
4. The reversible plow with overload protection as defined in claim 3 wherein: the connecting block (13) can move in the mounting rack (7) under the action of the hydraulic oil cylinder (3) and the connecting rod (8), and the central axis of the hydraulic oil cylinder (3) is overlapped with the central axis of the connecting rod (8).
5. The turnover plow with overload protection as claimed in claim 1 ~ 4, wherein the mounting bracket (7) is fixedly provided with a connecting seat (14) at the front end thereof, the connecting seat (14) is provided with a ball screw (6), the screw end of the ball screw (6) is in threaded connection with the connecting seat (14), and the ball end of the ball screw (6) is matched with the spherical groove (15) on the fixing frame (4).
6. The reversible plow with overload protection as defined in claim 5 wherein: the fixing frame (4) is provided with a connecting lug seat (16), and the connecting lug seat (16) is hinged with a connecting rod (8) of the overload protection mechanism.
7. An overload protection method for a reversible plow having overload protection as claimed in claim 2, 3 or 6, characterized in that: the method comprises the following steps:
s1: high-purity nitrogen with certain pressure is pre-filled into the energy accumulator leather bag, and the inflation pressure is lower than the working pressure of the hydraulic oil cylinder;
s2: before turning plow cultivation, firstly filling hydraulic oil with certain pressure into the energy accumulator and the hydraulic oil cylinder;
s3: in the process of turning plow cultivation, when a plow body touches an obstacle, the whole mounting frame rotates and lifts up around the first pin shaft and the ball head screw due to increased resistance, at the moment, the extension of the hydraulic cylinder is increased under the pulling of the connecting rod, so that hydraulic oil in the hydraulic cylinder flows to the energy accumulator, a leather bag in the energy accumulator is extruded, and the internal pressure of the energy accumulator is increased;
s4: after the mounting frame is lifted to cross the obstacle, hydraulic oil in the energy accumulator flows back to the hydraulic oil cylinder again under the action of pressure, so that the extension of the hydraulic oil cylinder is reduced, the hydraulic oil cylinder pulls the connecting rod, the mounting frame is finally returned to the horizontal position, the farming depth is normal, and the pressure in the system reaches the original pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050884.0A CN110637524A (en) | 2019-10-31 | 2019-10-31 | Turnover plow with overload protection and overload protection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050884.0A CN110637524A (en) | 2019-10-31 | 2019-10-31 | Turnover plow with overload protection and overload protection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110637524A true CN110637524A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911050884.0A Pending CN110637524A (en) | 2019-10-31 | 2019-10-31 | Turnover plow with overload protection and overload protection method thereof |
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| CN (1) | CN110637524A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536083A (en) * | 2020-04-29 | 2020-08-14 | 江苏赛欧智能科技有限公司 | Collision buffer control mechanism and method for working arm of greening comprehensive maintenance vehicle |
| CN113498635A (en) * | 2021-07-14 | 2021-10-15 | 曾玲花 | Edge-plowing type vertical turnover plow |
| CN114097315A (en) * | 2021-11-16 | 2022-03-01 | 广东皓耘科技有限公司 | Ploughshare assembly, turnover plow, overload protection control method of ploughshare assembly and tractor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516005A1 (en) * | 1991-05-31 | 1992-12-02 | BBG Bodenbearbeitungsgeräte Leipzig GmbH | Plough with an overload safety device for plough legs |
| EP0680250A1 (en) * | 1993-01-19 | 1995-11-08 | Kverneland Klepp As | An overload protection mechanism for a tubular plough beam |
| CN2628331Y (en) * | 2003-08-08 | 2004-07-28 | 三一汽车制造有限公司 | Dumping and floding carrying and lifting device for clearing obstruction vehicle |
| CN105960841A (en) * | 2016-07-04 | 2016-09-28 | 农业部南京农业机械化研究所 | Ridging plough assembly capable of avoiding obstacles |
| CN108145891A (en) * | 2016-12-02 | 2018-06-12 | 宁波市北仑赛维达机械有限公司 | A kind of mould slide block deflecting motion |
| CN108901201A (en) * | 2018-08-08 | 2018-11-30 | 新疆农垦科学院 | A kind of fluid pressure type self-excitation vibration drag reduction avoidance loosening device |
| CN209030517U (en) * | 2018-10-18 | 2019-06-28 | 李殿奎 | Intelligent and safe amplitude-modulation plough |
| CN210781967U (en) * | 2019-10-31 | 2020-06-19 | 郑州市龙丰农业机械装备制造有限公司 | Turnover plow with overload protection |
-
2019
- 2019-10-31 CN CN201911050884.0A patent/CN110637524A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0516005A1 (en) * | 1991-05-31 | 1992-12-02 | BBG Bodenbearbeitungsgeräte Leipzig GmbH | Plough with an overload safety device for plough legs |
| EP0680250A1 (en) * | 1993-01-19 | 1995-11-08 | Kverneland Klepp As | An overload protection mechanism for a tubular plough beam |
| CN2628331Y (en) * | 2003-08-08 | 2004-07-28 | 三一汽车制造有限公司 | Dumping and floding carrying and lifting device for clearing obstruction vehicle |
| CN105960841A (en) * | 2016-07-04 | 2016-09-28 | 农业部南京农业机械化研究所 | Ridging plough assembly capable of avoiding obstacles |
| CN108145891A (en) * | 2016-12-02 | 2018-06-12 | 宁波市北仑赛维达机械有限公司 | A kind of mould slide block deflecting motion |
| CN108901201A (en) * | 2018-08-08 | 2018-11-30 | 新疆农垦科学院 | A kind of fluid pressure type self-excitation vibration drag reduction avoidance loosening device |
| CN209030517U (en) * | 2018-10-18 | 2019-06-28 | 李殿奎 | Intelligent and safe amplitude-modulation plough |
| CN210781967U (en) * | 2019-10-31 | 2020-06-19 | 郑州市龙丰农业机械装备制造有限公司 | Turnover plow with overload protection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536083A (en) * | 2020-04-29 | 2020-08-14 | 江苏赛欧智能科技有限公司 | Collision buffer control mechanism and method for working arm of greening comprehensive maintenance vehicle |
| CN113498635A (en) * | 2021-07-14 | 2021-10-15 | 曾玲花 | Edge-plowing type vertical turnover plow |
| CN113498635B (en) * | 2021-07-14 | 2022-04-29 | 曾玲花 | Edge-plowing type vertical turnover plow |
| CN114097315A (en) * | 2021-11-16 | 2022-03-01 | 广东皓耘科技有限公司 | Ploughshare assembly, turnover plow, overload protection control method of ploughshare assembly and tractor |
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