A tool holder for a micro-tillage machine with adaptive variable tillage width

Abstract

The present invention relates to an agricultural machinery device, in particular to a variable micro-tillage machine tool holder suitable for urban micro-agriculture soil loosening operation devices. An adaptive variable tillage width micro-tillage machine tool holder includes a knife disc and a tillage knife. The knife disc is connected to a power source through a connecting mechanism. A slide groove is provided on the knife disc. A spring and a slider are installed in the slide groove. One end of the spring is connected and fixed to the slider, and the other end is connected and fixed to one end of the slide groove. The slider slides in the slide groove under the action of the spring; the tillage knife is installed at the lower end of the slider. The present invention has the following advantages: 1. It can be applied to various vegetable planting pots; 2. A fixed tillage knife is designed in the middle of the knife disc, which can be used for operations in the middle missed tillage area; 3. It has a simple structure, high working efficiency and strong practicality. 4. The knife disc is designed according to the characteristics of soil movement when the operator is operating. The use of a disc-type structure can play the role of a retaining plate to a certain extent. 5. The operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to an agricultural mechanical device, in particular to a variable micro-tillage machine tool holder suitable for an urban micro-agricultural soil loosening operation device. Background Art

[0002] As we all know, industrialization and urbanization are the inevitable trend of human social development, and they also bring many conveniences to human life and work. However, the negative effects of excessive urban development are also rapidly emerging: traffic congestion, air pollution, urban heat island effect, urban waterlogging, soil pollution and other urban environmental deterioration phenomena, and even food safety problems of urban residents, isolation between people and nature, and a series of social diseases caused by social ecological contradictions are becoming increasingly prominent. In order to solve these contradictions, people have been seeking ideal solutions. After a lot of theoretical research and exploration by colleagues in China, some concepts and practices with important values ​​have been proposed, such as urban agriculture, vertical agriculture, and urban micro-agriculture. In the UK, the mayor of London launched a "capital planting" plan in 2008. Under the promotion of the London government, rooftops, abandoned construction sites, and even some barges that are not in operation all year round have been transformed into community vegetable gardens. In Paris, France, following the "rooftop farm", Paris residents have begun to grow various fruits and vegetables such as strawberries, tomatoes, and peas on their 6-square-meter balconies.

[0003] Obviously, it is very difficult for traditional micro-tillage machines to loosen the soil. Traditional micro-tillage machines are noisy and easily disturb people during micro-agricultural operations. It is obviously unreasonable to operate in some pots and easily cause economic losses. In order to maintain the integrity of the pots and allow the micro-tillage machine to loosen the soil smoothly in vegetable pots of different shapes, the micro-tillage machine needs to have strong adaptability. The tillage width of the micro-tillage machine must change with the shape of the vegetable pot, thereby improving the efficiency of loosening the soil, and thus improving the economy during operation. In addition, the Chinese patent [CN201320186688.8] discloses a variable tillage width knife rake device for micro-tillage machines, but it cannot realize the automatic control of the tillage width design, and can only be manually changed. The adjustment is relatively cumbersome, and it cannot be operated in vegetable pots, so it cannot solve the tillage problem. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to provide an adaptive variable tillage width micro-tillage machine tool holder suitable for urban micro-agricultural operations, which can improve the soil loosening efficiency in urban micro-agricultural vegetable pots and reduce the fatigue of personnel during operation.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an adaptive variable tillage width micro-tillage machine tool holder, comprising a knife disc and a tilling knife, the knife disc is connected to a power source through a connecting mechanism, a slide groove is provided on the knife disc, a spring and a slider are installed in the slide groove, one end of the spring is connected and fixed to the slider, and the other end is connected and fixed to one end of the slide groove, and the slider slides in the slide groove under the action of the spring; the tilling knife is installed at the lower end of the slider.

[0006] Preferably, the cutter disc is a disc-shaped structure.

[0007] Preferably, the connecting mechanism is an output flange, the output flange is fixed to the cutter disc by studs, and the power source is connected and fixed to the output flange.

[0008] Preferably, the slide groove is arc-shaped, and ball grooves are provided on both sides of the slide groove, a plurality of balls are placed in the ball grooves, and the slider grooves provided on both sides of the slider correspond to the ball grooves.

[0009] Preferably, there are four ball grooves, which are arranged on both sides of the slide groove and are opposite to each other.

[0010] Preferably, one end of the slide groove is a closed end, close to the center of the cutter disc, and the other end is an open end, located at the edge of the cutter disc; a stopper is connected and fixed to the open end.

[0011] Preferably, there are two slide grooves, which are distributed on both sides of the center of the cutter disc, wherein the spring in one slide groove is fixed to the closed end of the slide groove, and the other is fixed to the stopper at the open end of the slide groove.

[0012] Preferably, a central axis hole of the cutter disc is opened in the center of the cutter disc, and a tilling blade sleeve is installed in the central axis hole of the cutter disc for installing and fixing the tilling blade.

[0013] Preferably, the slider is a cylindrical slider.

[0014] Working principle: When the operation starts, the power source transmits the power through the output flange, driving the cutter disc to rotate. Under the centrifugal force generated by the rotation of the cutter disc and the restriction of the two side walls of the slide, the tiller blade slides outward along the slide along with the slider, thereby changing the operating range of the tiller blade. The slider is positioned under the dual action of the speed and the limit spring. When the power output is interrupted, the limit spring is in a stretched or compressed state before the power is interrupted. At this time, the limit spring pulls the slider back or rebounds it to the initial position.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The tilling knife is installed on the slider in the slide, and the tilling range of the tilling knife can be changed. It can be applied to various vegetable pots, reducing the number of repeated actions, improving the working efficiency, and reducing the fatigue of the operator;

[0017] 2. A fixed tillage knife is designed in the middle of the knife disc to operate on the missed tillage area in the middle;

[0018] 3. Simple structure, high working efficiency and strong practicality.

[0019] 4. The cutter disc is designed according to the characteristics of soil movement during machine operation. The disc-type structure can play the role of a retaining wall to some extent.

[0020] 5. There are several balls in the ball groove, which can reduce the friction of the slider in the slide groove and reduce energy loss. The two sides of the slider are grooved, and the grooves are embedded with the balls and correspond to the positions of the ball grooves on both sides of the slide groove, so as to prevent the slider from slipping in the slide groove and prevent the tilling blade from being unstable in tillage depth due to upward force, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the structure of an embodiment of the present invention;

[0022] Figure 2 A top view of the structure of an embodiment of the present invention;

[0023] Figure 3 for Figure 2 AA section view in;

[0024] Figure 4 for Figure 2 Schematic diagram of the cutter disc structure;

[0025] Figure 5 for Figure 2 Schematic diagram of the slider structure in ;

[0026] Figure 6 This is a cutter head view in an embodiment of the present invention;

[0027] Among them: 1. Cutter disc; 3. Cutter; 4. Output flange; 5. Stud; 6. Limit spring; 7. Ball; 8. Ball groove; 9. Slider; 10. Slide; 11. Stopper; 12. Slide; 13. Slider; 14. Stopper; 15. Limit spring; 16. Cutter sleeve; 17. Stopper mounting hole; 18. Flange mounting hole; 19. Center axis hole; 20. Slider groove. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-6 The present invention is further described in detail: an adaptive variable tillage width micro-tillage machine tool holder, such as Figure 1As shown, it is composed of a cutter disc 1, a tilling blade 3, an output flange 4 and a variable tillage mechanism; the cutter disc 1 adopts a disc structure, which can play the role of a retaining plate to a certain extent; three tilling blades 3 are designed, including a fixed tilling blade and two movable tilling blades; four flange mounting holes 18 are provided on the output flange 4, which are connected to the mounting holes above the cutter disc 1 with studs 5, and the central axis hole 19 of the output flange 4 is connected to the output shaft of the power source for power transmission.

[0029] like Figure 2 As shown, the variable tillage mechanism includes a slider 9, a slide groove 10, a slide groove 12, a slider 13, a ball 7, a ball groove 8, a limit spring 6 and a limit spring 15. One end of the slide grooves 10 and 12 is a closed end, close to the center of the cutter disc, and the other end is an open end, located at the edge of the cutter disc 1, and is connected to fixed blocks 11 and 14 at the open ends, respectively. The slide groove is arc-shaped, and four ball grooves 8 are respectively provided in the slide groove 10 and the slide groove 12. The ball grooves 8 are located on both sides of the slide groove and are arranged opposite to each other. A number of balls 7 are embedded in the ball grooves 8, and the tilling blade 3 is sleeved in the axial holes of the sliders 9 and 13 and is embedded in the slide groove together with the limit springs 6 and 15; specifically, one end of the limit spring 6 is fixedly installed at the closed end of the slide groove 10, and the other end is connected to the slider 9. One end of the limit spring 15 is connected to the slider 13, and the other end is fixedly connected to the block 14. The tilling blade 3 slides in the slide groove along with the slider.

[0030] The block is provided with four mounting holes, and four block mounting holes 17 are correspondingly provided at the open end of the slide groove. The block 11 is installed at the open end of the slide groove 10 using studs to limit the movement range of the slider 9 and the movement of the ball 7. The block 14 is installed at the open end of the slide groove 12 using studs to limit the movement range of the slider 13 and the movement of the ball 7 to prevent the ball 7 from escaping from the sliders 9 and 13.

[0031] like Figure 3-4 As shown, a central axis hole 19 is provided in the middle of the cutter disc 1, and a tilling blade sleeve 16 is installed in the central axis hole of the cutter disc for installing and fixing the tilling blade 3. The power transmission shaft is transmitted to the cutter disc 1 through an output flange 4 installed in the middle of the cutter holder, and the cutter disc 1 rotates accordingly, and the tilling blade 3 also rotates accordingly to operate on the missed tillage area in the middle.

[0032] like Figure 5-6 As shown, in order to further reduce energy loss and improve tillage depth stability, sliders 9 and 13 are cylindrical sliders, and slider grooves 20 are designed on both sides of the sliders. The slider grooves 20 are embedded with the balls 7 to prevent the sliders from slipping in the slide grooves, thereby improving the working efficiency. The ball grooves 8 are equipped with a number of balls 7, which reduce the friction of the sliders 9 and 13 in the slide grooves 10 and 12 and also reduce energy loss. The slide grooves on the sliders correspond to the ball grooves, and under the restriction of the balls, the tillage depth of the tillage blade will not be changed when it is subjected to upward force.

[0033] Working principle: When the operation starts, the power source transmits the power through the output flange 4, driving the cutter disc 1 to rotate. Under the action of the centrifugal force generated by the rotation of the cutter disc 1, and the restrictions of the two side walls of the slide groove 10, 12 and the ball 7, the plowing knife 3 slides outward along the slide groove together with the sliders 9, 13, thereby changing the working range of the plowing knife. The slider 9 slides in the slide groove 10, the limit spring 6 is stretched, the slider 13 moves in the slide groove 12, the limit spring 15 is compressed, and the slider is positioned under the dual action of the rotation speed and the limit springs 6, 15. When the tilling blade 3 moves with the slider driven by the cutter disc 1, the slider grooves 20 on both sides of the sliders 9 and 13 will not slip due to the embedded balls, and the balls 7 and the side walls of the slide grooves will generate a radial force on the sliders, so that the sliders 9, 13 and the tilling blade 3 rotate around the rotating axis, thereby loosening the soil. The tilling blade at the central axis hole 19 of the cutter disc rotates around the central axis of the output flange 4 as the cutter disc 1 rotates, thereby performing operations.

[0034] When the power output is interrupted, the limit spring 6 is in a stretched state before the power is interrupted. At this time, the limit spring 6 pulls the slider back and pulls the slider 9 back to the initial state, while the limit spring 15 is in a compressed state before the power is interrupted. At this time, the slider 13 is rebounded and the slider 13 rebounds to the initial position.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes, such as the structure, quantity and shape of the slideway, etc. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive variable tillage machine tool holder, comprising a tool disc and a tillage blade, characterized in that: The cutter disc is connected to the power source through a connecting mechanism. A slide groove is provided on the cutter disc. A spring and a slider are installed in the slide groove. One end of the spring is connected and fixed to the slider, and the other end is connected and fixed to one end of the slide groove. The slider slides in the slide groove under the action of the spring. The tilling blade is installed at the lower end of the slider. The tilling blade slides outward along the slide groove together with the slider, thereby changing the operating range of the tilling blade. The slide groove is arc-shaped, with one end being a closed end close to the center of the cutter disc, and the other end being an open end located at the edge of the cutter disc; a stopper is connected and fixed to the open end; ball grooves are provided on both sides of the slide groove, and a number of balls are placed in the ball grooves, and the slide grooves provided on both sides of the slide block correspond to the ball grooves; There are two slide grooves, which are distributed on both sides of the center of the cutter disc. The spring in one of the slide grooves is fixed to the closed end of the slide groove, and the other is fixed to the stopper at the open end of the slide groove.

2. The tool holder for the self-adaptive variable tillage machine according to claim 1 is characterized in that: The knife disc is a disc-type structure.

3. The tool holder for the self-adaptive variable tillage machine according to claim 1 or 2, characterized in that: The connecting mechanism is an output flange, which is fixed on the cutter disc through studs, and the power source is connected and fixed to the output flange.

4. The tool holder for the self-adaptive variable tillage machine according to claim 1 is characterized in that: There are four ball grooves, which are arranged on both sides of the slide groove and are opposite to each other.

5. The tool holder for the self-adaptive variable tillage machine according to claim 1 is characterized in that: A central axis hole of the cutter disc is provided at the center of the cutter disc, and a tilling blade sleeve is installed in the central axis hole of the cutter disc for installing and fixing the tilling blade.

6. The tool holder for the self-adaptive variable tillage machine according to claim 1 is characterized in that: The slider is a cylindrical slider.

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