CN111010897B

CN111010897B - Internal regulation drag reduction subsoiler capable of automatically sensing pressure

Info

Publication number: CN111010897B
Application number: CN201911336843.8A
Authority: CN
Inventors: 王宪良; 张祥彩; 郭朝阳; 鹿芳媛; 杨瀚瑜; 刘峰祥
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2022-04-22
Anticipated expiration: 2039-12-23
Also published as: CN111010897A

Abstract

The invention relates to the technical field of agricultural production, in particular to an automatic pressure sensing internal regulation anti-drag subsoiler, which is characterized in that a technical scheme of subsoiling resistance sensing, resistance control and feedback mechanism is mainly adopted, so that a region with larger resistance can be met in the subsoiling process, the surface of a subsoiler handle can be regulated to permeate a lubricating liquid, the farming resistance is effectively reduced, when the resistance is reduced to a pressure setting value, the permeation action of the lubricating liquid is finished, and the subsoiler normally works. The device is characterized by mainly comprising a liquid tank (1), a frame (2), a liquid conveying pipe (3), a subsoiler fixing device, an automatic induction adjusting subsoiler and a fixing device. The invention effectively solves the problem of large resistance in the deep scarification process through a novel resistance reduction mode.

Description

Internal regulation drag reduction subsoiler capable of automatically sensing pressure

Technical Field

The invention belongs to the technical field of agricultural machinery, and particularly relates to an internal pressure-sensing and resistance-reducing subsoiler.

Background

With the continuous development of agricultural machinery in China towards large-scale and the continuous increase of the degree of agricultural organization, soil compaction gradually becomes a prominent problem to be solved urgently. The subsoiling technology conforms to the principle of reducing soil disturbance as much as possible, soil compaction is quickly reduced through the form of only loosening soil and not turning soil, the technology can be quickly developed due to the fact that the structure is simple, the compaction can be quickly reduced, and the problems of large traction resistance and the like exist in the technical popularization and application process.

The patent 'bamboo rat and ant lion coupling bionic drag reduction subsoiler (application number 201910350556.6)' effectively reduces subsoiling resistance through structural optimization of the subsoiler under the condition of ensuring cultivation effect by the bionics principle; the patent "a vibrating subsoiler (CN 201210196080)" effectively reduces subsoiling resistance when improving the effect of loosening the soil through the vibration that increases the subsoiler in-process. But the timely self-adjustment is not realized, and the problem of large resistance cannot be solved from the contact angle of agricultural machinery components and soil. Therefore, a subsoiler which adjusts resistance by automatically sensing the resistance during subsoiling and which combines a subsoiler with a soil-contacting surface to reduce drag is needed.

Disclosure of Invention

The invention aims to meet the requirement of automatically sensing pressure and internally adjusting farming resistance, adopts the technical scheme of subsoiling resistance sensing, resistance control and feedback mechanism, can realize that a region with larger resistance is met in the subsoiling process, can adjust and enable the surface of a subsoiler handle to permeate a lubricating liquid, effectively reduces the farming resistance, and finishes the permeation action of the lubricating liquid when the resistance is reduced to a pressure setting value, and the subsoiler normally works. The automatic pressure sensing and internal regulation drag reduction subsoiler is characterized by mainly comprising a liquid tank 1, a frame 2, a liquid conveying pipe 3, a subsoiler fixing device (4, 401), an automatic induction regulation subsoiler 5 and a fixing device.

The liquid tank 1 is placed on the upper portion of the machine frame and fixed on the cross beam 201 through a bolt 202, a certain distance is kept between the liquid tank and the machine frame, so that the bottom of the liquid tank is connected with the top of the subsoiler 5 through a liquid conveying pipe 3, and in order to guarantee the sealing performance of the subsoiler, a connector 12 is arranged at the connecting position.

The subsoiler 5 mainly comprises a subsoiler shell 6, a pressure adjusting monomer 701, a pressure trigger rod 13 and a connecting sleeve 5; the subsoiler 5 is mainly fixed on the frame 2 through a connecting plate 4 and a U-shaped bolt 401; the pressure adjusting monomer 701 is sleeved inside the subsoiler shell 6, and the two parts are tightly fixed together through the bolt holes 602; the pressure trigger rod 13 is connected with the connecting sleeve 5 in combination with the bolt hole 502 and is positioned right behind the pressure adjusting single body 701.

The pressure regulating monomer 701 mainly comprises a pressure membrane 702, a sealing gasket 703 and a pipeline disc 704; the pressure membrane 702, the sealing gasket 703 and the pipe disc 704 are tightly connected together through the bolt hole 602; the pressure adjusting single body 7 is fixed on the connecting sleeve 5 through a depth adjusting screw hole 501, and the fixing sleeve 5 is connected with the connecting plate 4 in a welding mode.

The pipeline disc 704 is positioned in the middle of the pressure adjusting unit 701 and is tightly connected with a sealing gasket 703 through two sides of the bolt hole 602; the oil-liquid seal device mainly comprises a piston sliding block 8, a first channel 907, a second channel 908, a third channel 909, two

first springs

901 and 902, a second spring 903, a third spring 904, a second triangular cone valve 905, a first triangular cone valve 906, an oil through port 10, an oil-liquid storage chamber 11 and a seal interface 12, wherein the oil through port 10 is communicated with the front surface and the back surface of a pipeline plate 704, and the oil-liquid storage chamber 11 is positioned on the back surface of the pipeline plate 704.

The pressure trigger rod 13 is positioned right behind the pressure adjusting single body 7 and mainly comprises a return spring 14, a trigger cross rod 15 and a bolt hole 502; wherein, the reset spring 14 and the trigger cross bar 15 are connected with the trigger bar body 13 in a welding way; is connected with the connecting sleeve 5 through the bolt hole 502.

The two side surfaces of the sealing gasket 703 have the same structure, and the lubricating oil liquid penetration port 601 is positioned at the lower part of the sealing gasket and is the same as the oil liquid storage chamber 11.

The two side surfaces of the pressure membrane 702 are consistent in structure, the two sides of the pressure membrane are tightly attached to the sealing gasket 703 and the subsoiler housing 6 respectively, and lubricating oil can permeate from the two sides of the lubricating oil due to the pressure difference of the lubricating oil.

The invention has the advantages that the soil resistance condition in the subsoiling process can be timely and accurately sensed, feedback can be adjusted based on the farming resistance state, resistance reduction can be realized in a mode of lubricating oil permeating on the surface of the subsoiler, the device is simple and easy to operate, and the device is detachable, is suitable for various types of scarifiers, and is beneficial to further popularization of protective farming.

Drawings

Fig. 1 is a structure diagram of an automatic perception drag reduction subsoiler.

Fig. 2 is a front exploded view of the subsoiler construction.

Fig. 3 is a side view of a pressure regulating monomer.

Fig. 4 is a view showing an internal structure of a pipe tray.

Fig. 5 is a view showing the structure of the gasket and the pressure membrane.

In the figure, 1-liquid tank, 2-frame, 201-beam, 202-bolt, 3-liquid delivery pipe, 4-fixed cover plate, 401-U type bolt, 5-connecting sleeve, 501-depth adjusting screw hole, 502-bolt hole, 6-subsoiler shell, 601-lubricating oil infiltration port, 602-bolt hole, 701-pressure adjusting monomer, 702-pressure membrane, 703-sealing gasket, 704-pipeline disk, 8-piston slide block, 901, 902 first spring, 903 second spring, 904 third spring, 905 second triangular cone valve, 906 first triangular cone valve, 907 first channel, 908 second channel, 909 third channel, 10-through hole, 11-oil storage chamber, 12-sealing interface, 13-pressure trigger rod, 14-reset spring, 15-triggering the cross bar.

Detailed Description

The present invention will be described in further detail with reference to the following examples and the accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

FIG. 1 is a structural diagram of an automatic sensing drag reduction subsoiler, which mainly comprises a liquid tank 1, a frame 2, a liquid delivery pipe 3, a subsoiler fixing device (a fixing cover plate 4, a U-shaped bolt 401 and a connecting sleeve 5) and an automatic sensing drag reduction subsoiler (a subsoiler shell 6, a pressure adjusting monomer 701 and a pressure trigger rod 13); the automatic induction drag reduction subsoiler (the subsoiler shell 6, the pressure adjusting monomer 7 and the pressure trigger rod 13) is fixed on the connecting sleeve 5 through bolt holes (501, 502), the connecting sleeve 5 is welded on the fixed cover plate 4, and is fixed on the frame through a U-shaped bolt 401 and the fixed cover plate 4; the two ends of the liquid conveying pipe 3 are respectively connected with the liquid tank 1 and the pipeline disc 704, and in order to ensure the connection tightness, the liquid conveying pipe 3 is connected with the pipeline disc 704 through a sealing interface.

FIG. 2 is a front view exploded view of a subsoiler structure, which structurally mainly comprises a subsoiler housing 6, a pressure regulating single body 701, a pressure trigger rod 13 and a connecting sleeve 5, wherein two sides of the pressure regulating single body 701 are only contacted with the subsoiler housing 6 and fixed by bolt holes 602, the whole connecting body of the pressure regulating single body 701 and the subsoiler housing 6 is connected with the connecting sleeve 5 by a depth regulating screw hole 501, when the subsoiler is in a working state, the pressure regulating single body 701 and the subsoiler housing 6 are connected by only one bolt, so that the whole connecting body of the pressure regulating single body 701 and the subsoiler housing 6 can move horizontally under the action of external force, the pressure trigger rod 13 is fixed with the connecting sleeve 5 by the bolt holes 502, wherein the pressure trigger rod 13 is fastened and connected with the connecting sleeve 5 by two bolts to keep six degrees of fixation, and a reset spring 14 and a trigger cross rod 15 with freedom in the pressure trigger rod 13 are contacted with the pressure regulating single body 701, when the subsoiling resistance in front of the subsoiling shovel shell 6 and the pressure adjusting monomer 701 is larger than the adjusting pretightening force of the return spring 14 in the subsoiling process, the subsoiling shovel shell 6 and the pressure adjusting monomer 701 generate a backward movement trend, the trigger cross rod 15 is in contact with the piston slide block 8, and the piston slide block 8 is pushed to move along the first oil way 907.

Fig. 3 is a side view of a pressure regulating unit 701, which mainly comprises a pressure membrane 702, a sealing gasket 703 and a pipe coil 704, wherein the pressure regulating unit 701 is distributed in bilateral symmetry, and in order to prevent oil leakage, tight connection is required between each part.

FIG. 4 is a diagram of an internal structure of a conduit plate 704, which mainly comprises a piston slider 8, a first channel 907, a second channel 908, a third channel 909, two

first springs

901, 902, a second spring 903, a third spring 904, a second triangular cone valve 905, a first triangular cone valve 906, an oil through port 10, an oil storage chamber 11 and a sealing interface 12, wherein the conduit plate 704 is a separation structure which can be separated from the middle, one side of each separated part is an oil pipeline channel, the other side of each separated part is the oil storage chamber 11 in contact with a sealing gasket 703, and the two parts are combined into a whole to form the conduit plate 704 The third spring 904 forms a structure of a one-way valve, so that the oil pressure is increased and the second triangular cone valve 905 cannot be opened, the first triangular cone valve 906 overcomes the pre-tightening force of the second spring 903 when bearing pressure is increased, the first triangular cone valve 906 moves leftwards, the first channel 907 is communicated with the third channel 909, oil entering the third channel 909 enters the oil storage chamber 11 through the through hole 10, the oil storage chamber 11 just corresponds to the lubricating oil permeation port 601 on the sealing gasket 703, when the subsoiling resistance is reduced, the subsoiling shovel shell 6 and the pressure adjusting monomer 701 return under the action of the return spring 14, so that the acting force of the trigger cross rod 15 on the piston slider 8 is reduced, the piston slider 8 moves rightwards under the action of the first spring 902 to return, the area of the first channel 907 is increased due to the movement of the piston slider 8, the oil pressure is reduced, and the pressure difference causes the second triangular cone valve 905 to be opened, the oil flows from the oil tank 1 through the fluid delivery pipe 3 into the second passage 908, and the amount of the lubricating oil in the first passage 907 is replenished.

Fig. 5 is a structure diagram of a sealing gasket 703 and a pressure membrane 702, the sealing gasket 703 is symmetrically distributed on both sides of a pipe coil 704, a lubricating oil penetration port 601 is reserved on the surface, lubricating oil can be in contact with the pressure membrane 702 through the lubricating oil penetration port 601, the pressure membrane 702 is symmetrically distributed on both sides of the sealing gasket 703, and the other surface of the pressure membrane is in close contact with the subsoiler housing 6, so that the lubricating oil can be timely penetrated into the surface of the subsoiler housing 6 when the subsoiling resistance is large.

The invention is suitable for various non-rotary tillage machines mainly for subsoiling, and for the problem of larger subsoiling resistance in the subsoiling process, the automatic pressure sensing internal regulation drag reduction subsoiler can accurately sense the subsoiling resistance in time and adjust the subsoiling resistance to the subsoiling drag reduction through internal self-feedback.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. Automatic perception pressure internal regulation drag reduction subsoiler, its characterized in that, including frame, auto-induction drag reduction subsoiler and subsoiler fixing device, subsoiler fixing device includes fixed apron and adapter sleeve, the adapter sleeve welding is on fixed apron, fixed apron is fixed in the frame, fixedly connected with oil tank in the frame, auto-induction drag reduction subsoiler includes subsoiler shell, pressure adjustment monomer and pressure trigger bar, pressure adjustment egg body both sides and subsoiler shell contact, pressure trigger bar and adapter sleeve fixed connection, the pressure adjustment monomer is connected with the adapter sleeve with the connection of subsoiler shell is whole, and the pressure adjustment monomer includes the pipeline dish, the pipeline dish includes piston slide, first passageway, second passageway, third passageway, two first springs, second spring, third spring, first triangle cone valve and second triangle cone valve, The hydraulic oil storage chamber is communicated with the first channel, two first springs are arranged in the first channel, a reset spring and a trigger cross rod in a pressure trigger rod are in contact with a pressure adjusting monomer, the pressure adjusting monomer and a subsoiler shell are connected integrally through a bolt and a connecting sleeve in a working state, so that the pressure adjusting monomer and the subsoiler shell can move horizontally under the action of external force, when the subsoiler shell and the pressure adjusting monomer are subjected to front subsoiling resistance greater than adjusting pretightening force of the reset spring, the subsoiler shell and the pressure adjusting monomer generate a backward movement trend, the trigger cross rod is in contact with a piston slide block to push the piston slide block to move along the first channel, the first channel is communicated with the third channel, oil entering the third channel enters the storage chamber, and the penetration amount of lubricating oil on the surface of the subsoiler shell is adjusted, thereby realizing the effect of drag reduction; when the subsoiling resistance reduces, subsoiling shovel shell, pressure adjustment monomer playback under reset spring's effect for trigger the horizontal pole and reduce the effort of piston slider, piston slider moves the playback to the right under the effect of second spring, the piston slider motion makes first passageway area increase, oil hydraulic pressure reduces, pressure differential makes second triangle cone valve open, fluid in the oil tank flows into the second passageway through the liquid delivery pipe, supplements the inside lubricating oil liquid measure of first passageway.

2. The automatic pressure sensing, internal regulation, drag reduction and subsoiler of claim 1 wherein said stationary cover plate is secured to the frame by U-bolts.

3. The machine of claim 1 or 2, wherein when farming resistance increases, slight movement of the subsoiler causes an increase in pressure of the lubricating oil in the pipeline, causing the lubricating oil to penetrate the pressure membrane to the surface of the subsoiler, thereby achieving a drag reducing effect.