Ditching machine with high stability

Abstract

The invention discloses a furrowing machine with high stability, and relates to the field of agricultural machinery, the furrowing machine comprises a rack, a furrowing wheel, a fertilizer guide plate and a soil covering plate are arranged on the rack, the soil covering plate covers above the furrowing wheel, a valve plate is arranged on the fertilizer guide plate, the soil covering plate is connected to the rack in a swinging manner, and the fertilizer guide plate and the soil covering plate are arranged on the rack. The soil covering plate is in linkage with the valve plate so that the swing amplitude of the soil covering plate can be in direct proportion to the opening amplitude of the valve plate, in the forward stroke of the ditching machine, the soil covering plate swings due to soil throwing impact of the ditching wheel, according to the ditching machine with the high stability, soil can impact the soil covering plate to enable the soil covering plate to swing, and therefore the soil covering plate is prevented from falling off. The soil covering plate and the valve plate are linked to control the opening amplitude of the valve plate, so that the faster the advancing speed of the ditcher is, the more the soil thrown by the ditcher is, the larger the swing amplitude of the soil covering plate is, and the larger the opening amplitude of the valve plate is, and the amount of fertilizer falling into a ditch can be passively adjusted through the cooperation between the soil covering plate and the fertilizer guide plate.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a trenching machine with strong stability. Background Art

[0002] A trencher is a mechanical device used to dig trenches in farmland or orchards. Its main function is to open a trench on the ground so that planting or other agricultural operations can be carried out in the trench. At present, trenchers in the prior art are mainly integrated trenching, fertilizing and covering soil. The general process is that the trencher's cutter cuts a trench on the ground, and the soil is thrown backwards by the trenching cutter. At the same time, fertilizer falls into the trench from the fertilizer inlet through the fertilizer guide plate. The thrown soil falls back into the trench under the protection of the covering plate, thus completing the trenching, fertilizing and covering soil operation.

[0003] For example, the patent with the authorization announcement number CN207410727U and the authorization announcement date May 29, 2018, entitled "A trenching, fertilizing and soil covering integrated machine", includes a frame, a trenching device, a fertilizing device and a soil covering device. The trenching device includes a cutter disc, a blade and a driving mechanism. The fertilizing device includes a box body, a fertilizer discharger and a fertilizer discharge auger. The soil covering device includes a soil covering plate and a soil covering plate shaft. The fertilizing device is fixed to the upper end of the frame, the trenching device is fixed directly below the fertilizing device, and the soil covering device is fixed to the trenching device. Directly behind the traveling direction of the ditch device, the driving mechanism includes a bevel gear reducer and a driving shaft, the driving shaft drives the bevel gear reducer to rotate, the center line of the driving shaft and the center line of the fertilizer auger are located on the same vertical plane, the center lines of the driving shaft and the fertilizer auger have an angle, the driving shaft is connected to the fertilizer auger through a speed regulator fixed on the frame, this patent reduces the width of the entire ditching and fertilizing covering machine, improves the overall flexibility, has a clever structure, saves a set of driving devices, and reduces costs.

[0004] The shortcomings of the above-mentioned patents are that during the entire trenching process, when the fertilizer in the prior art falls into the trench through the fertilizer guide plate, the falling speed of the fertilizer will remain consistent, but when the trencher is trenching, the forward speed of the trencher is inconsistent, which will cause the amount of fertilizer in the fertilizer falling area to be different. For example, when the speed of the trencher is relatively slow, more fertilizer will fall in this area. When the speed of the trencher is relatively fast, less fertilizer will fall in this area, which greatly affects the fertilization effect. Summary of the invention

[0005] The object of the present invention is to provide a trenching machine with strong stability to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A trenching machine with strong stability comprises a frame, on which a trenching wheel, a fertilizer guide plate and a soil covering plate are arranged, the soil covering plate is covered above the trenching wheel, a valve plate is arranged on the fertilizer guide plate, the soil covering plate is swingably connected to the frame, the soil covering plate is linked with the valve plate so that the swing amplitude of the soil covering plate is proportional to the opening amplitude of the valve plate, and during the forward stroke of the trenching machine, the soil covering plate swings due to the impact of soil thrown by the trenching wheel.

[0008] The above-mentioned trencher with strong stability, the fertilizer guide plate includes a bottom plate and two side plates arranged opposite to each other, the bottom plate and the two side plates form a channel for conveying fertilizer, and the valve plate is arranged on the channel.

[0009] In the above-mentioned trenching machine with strong stability, the soil covering plate is linked with the valve plate through an adjusting mechanism, and the adjusting mechanism is arranged on both sides of the fertilizer guide plate.

[0010] In the above-mentioned trenching machine with strong stability, a groove is arranged on the fertilizer guide plate, one end of the adjustment mechanism is connected to the valve plate through the groove, and the other end of the adjustment mechanism is connected to the covering plate.

[0011] The above-mentioned trencher with strong stability, the adjusting mechanism includes a slider and an adjusting rod, a slide groove is provided on the top surface of the covering plate, the slider is slidably connected in the slide groove, one end of the adjusting rod is rotatably connected to the slider, a protrusion is provided on the side of the valve plate, the protrusion is slidably connected in the groove, and the other end of the adjusting rod is rotatably connected to the protrusion.

[0012] In the above-mentioned trenching machine with strong stability, a guide mechanism is arranged on the fertilizer guide plate to limit the sliding direction of the valve plate.

[0013] The above-mentioned trenching machine with strong stability is provided with a discharge port through the soil covering plate, and one end of the fertilizer guide plate extends into the discharge port.

[0014] In the above-mentioned trenching machine with strong stability, the outer dimensions of the discharge port are larger than the dimensions of the fertilizer guide plate so that the covering plate has swing space.

[0015] The above-mentioned trenching machine with strong stability is provided with a closing cloth on the discharge port, one end of the closing cloth is connected to the inner wall of the discharge port, and the other end of the closing cloth is connected to the fertilizer guide plate.

[0016] In the above-mentioned trenching machine with strong stability, a cover shell is arranged on the fertilizer guide plate, and the cover shell is used to prevent the fertilizer from spilling out of the fertilizer guide plate.

[0017] In the above technical scheme, the present invention provides a trencher with strong stability. During the forward movement of the trencher, the soil in the trench opened by the trencher will be thrown backwards by the trenching wheel, and the soil will hit the covering plate to cause the covering plate to swing. The covering plate and the valve plate are linked to control the opening range of the valve plate. In this way, the faster the forward speed of the trencher, the more soil it will throw up, and the greater the swing range of the covering plate, the greater the opening range of the valve plate. In this way, the amount of fertilizer falling into the trench can be passively adjusted through the cooperation between the covering plate and the fertilizer guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the structure of a trenching machine provided by an embodiment of the present invention;

[0020] Figure 2 A schematic structural diagram of a trenching machine provided in another embodiment of the present invention;

[0021] Figure 3 A cross-sectional view of a fertilizer guide plate provided in another embodiment of the present invention;

[0022] Figure 4 A schematic structural diagram of one side of a fertilizer guide plate provided in another embodiment of the present invention.

[0023] Description of reference numerals:

[0024] 1. Fertilizer guide plate; 2. Soil covering plate; 2.1. Discharge port; 2.2. Closing cloth; 3. Grooving wheel; 4. Valve plate; 5. Adjusting mechanism; 5.11. Slide; 5.12. Sliding block; 5.2. Adjusting rod; 6. Groove; 7. Extension part; 8. Trough body; 9. Extension part. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] In the description of the present invention, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "degree", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the present invention, the bottom or down is the direction close to the ground, and the top or up is the direction away from the ground.

[0027] Reference Figure 1-4 The embodiment of the present invention provides a trenching machine with strong stability, including a frame, on which a trenching wheel 3, a fertilizer guide plate 1 and a covering plate 2 are arranged, the covering plate 2 is covered above the trenching wheel 3, the fertilizer guide plate 1 is provided with a valve plate 4, the covering plate 2 is swingably connected to the frame, the covering plate 2 is linked with the valve plate 4 so that the swing amplitude of the covering plate 2 is proportional to the opening amplitude of the valve plate 4, and in the forward stroke of the trenching machine, the covering plate 2 swings due to the soil throwing impact of the trenching wheel 3.

[0028] Specifically, the trenching machine includes a frame, on which a covering plate 2 and a trenching wheel 3 are provided. The trenching wheel 3 is circumferentially provided with a plurality of cutting tools for trenching. The covering plate 2 is provided directly above or above the side of the trenching wheel 3. Its function is that when the trenching machine is traveling, the trenching wheel 3 throws up the soil in the process of cutting into the soil on the ground to form a groove through the cutting tool. The covering plate 2 blocks the soil in the throwing-up stroke, thus preventing the disorderly scattering of the soil. Obviously, the covering plate 2 also has a safety protection function. A fertilizer guide plate 1 is also provided on the frame, and one end of the fertilizer guide plate 1 is connected to a fertilizer storage mechanism on the trenching machine, such as a fertilizer barrel, and the other end is located behind the driving direction of the trenching wheel 3 to transport the fertilizer to the trench that has just been opened. The above are all existing technologies and will not be repeated. This embodiment has at least two improvements on the basis of the prior art. First, the soil cover plate 2 is connected to the frame in a swinging manner, such as the soil cover plate 2 is connected to the frame in a swinging manner through a rotating shaft so that it can swing up and down in the vertical direction. Second, a valve plate 4 is provided on the fertilizer guide plate 1, and a passage for conveying fertilizer is formed on the fertilizer guide plate 1. The valve plate 4 is provided on the passage to control the opening and closing amplitude. The soil cover plate 2 is linked with the valve plate 4 to control the opening amplitude of the valve plate 4. When the trenching wheel 3 is trenching, the trenching wheel 3 is used to open the trench. The wheel 3 will throw up the soil and hit the soil cover plate 2 to make it swing, and at the same time, the thrown soil will be knocked back to the ground. The effect of the linkage between the soil cover plate 2 and the valve plate 4 is that the swing of the soil cover plate 2 can drive the valve plate 4 to swing basically synchronously. In this way, there are many linkage modes. For example, a gear rack is provided on the soil cover plate 2, the rack is connected to the soil cover plate 2, and the valve plate 4 is rotatably connected to the fertilizer guide plate 1 through the central axis. A gear is fixed on the central axis, and the gear rack is meshed with each other. In this way, the swing of the soil cover plate 2 drives the gear rack to mesh with each other. The movement of the strip drives the gear to rotate, thereby driving the valve plate 4 to open. In this way, the covering plate 2 is hit by the soil thrown up by the trenching wheel 3 and swings upward, driving the valve plate 4 to open, that is, the valve plate 4 gradually opens to form an opening, and the fertilizer falls from the opening. In other words, the greater the swing amplitude of the covering plate 2, the larger the opening opened by the valve plate 4. In this way, when the trenching machine speed is faster, the more soil is thrown up, the greater the impact force on the covering plate 2, and the greater the swing amplitude of the covering plate 2, thus driving the valve plate 4 to open a larger opening. The covering plate 2 is linked with the valve plate 4 so that the swing amplitude of the covering plate is substantially proportional to the opening amplitude of the valve plate 4. When the trencher stops working, the covering plate 2 will also stop swinging, and the valve plate 4 is closed at this time. In this way, the impact force of the soil thrown up by the trenching wheel 3 hitting the covering plate 2 is used as power to drive the covering plate 2 to swing, thereby controlling the opening size of the valve plate 4, that is, the valve plate 4 can be opened and closed passively, and the size of the opening opened by the valve plate 4 can also be adjusted according to the travel speed of the trencher.

[0029] The embodiment of the present invention provides a trencher with strong stability. During the forward movement of the trencher, the soil in the trench opened by the trencher will be thrown backwards by the trenching wheel 3, and the soil will hit the covering plate 2 to cause the covering plate 2 to swing. The covering plate 2 and the valve plate 4 are linked so that the valve plate 4 will open at this time. In this way, the faster the forward speed of the trencher, the more soil it will throw up, and the greater the swing amplitude of the covering plate 2, the greater the opening amplitude of the valve plate 4 at this time. In this way, the amount of fertilizer falling into the trench can be passively adjusted through the cooperation between the covering plate 2 and the fertilizer guide plate 1.

[0030] In another embodiment provided by the present invention, Figure 1 As shown, the soil cover plate 2 is linked with the valve plate 4 through an adjustment mechanism 5, and the adjustment mechanism 5 is arranged on both sides of the fertilizer guide plate 1. The adjustment mechanism 5 includes a slider 5.12 and an adjustment rod 5.2. A slide groove 5.11 is arranged on the top surface of the soil cover plate 2, and the slider 5.12 is slidably connected to the slide groove 5.11. One end of the adjustment rod 5.2 is rotatably connected to the slider 5.12. The radial cross section of the fertilizer guide plate 1 is U-shaped, that is, it includes a bottom plate and two side plates arranged oppositely, and each of the two side plates is provided with a groove 6. The side of the valve plate 4 is provided with a protrusion (not shown in the figure), and the protrusion is slidably connected to the groove 6, the other end of the adjusting rod 5.2 is rotatably connected to the protrusion, that is, one end of the adjusting rod 5.2 is rotatably connected to the valve plate 4 through the protrusion in the groove 6, so that when the covering plate 2 swings, the slider 5.12 slides on the slide groove 5.11 and performs a composite motion of swinging, and the adjusting rod 5.2 moves vertically upward as a whole. Due to the rotational connection between the adjusting rod 5.2 and the valve plate 4, the adjusting rod 5.2 drives the valve plate 4 to move upward, so that the valve plate 4 opens. The adjusting mechanism 5 is arranged in this way so that when the covering plate 2 swings, the adjusting rod 5.2 moves axially upward, thereby driving the valve plate 4 to open upward.

[0031] Preferably, the fertilizer guide plate 1 is provided with a guide mechanism such as a slide rail to limit the sliding direction of the valve plate 4 to prevent it from swinging. This is a prior art and can also be achieved by limiting the flat protrusion and the groove 6, which will not be described in detail.

[0032] In the aforementioned embodiment, since the position of the limit valve plate 4 can be set relatively forward and the inclination angle of the fertilizer guide plate 1 can be set relatively small, even if the top of the fertilizer guide plate 1 is opened, there will be no fertilizer overflow. In another embodiment provided by the present invention, Figure 2-4As shown, the fertilizer guide plate 1 is provided with a cover shell, that is, the U-shaped opening is blocked by the cover shell, and the passage for conveying fertilizer becomes the internal cavity surrounded by the fertilizer guide plate 1 and the cover shell, and the cover shell is used to prevent the fertilizer from overflowing from the fertilizer guide plate 1. In this embodiment, the covering plate 2 is penetrated with a discharge port 2.1, and one end of the fertilizer guide plate 1 extends into the discharge port 2.1, that is, the lower end of the fertilizer guide plate 1 is located below the inner side of the covering plate 2, so that the fertilizer can enter the groove excavated by the trenching wheel 3 from the inner side of the covering plate 2 through the discharge port 2.1. The point is that an extension part 7 is formed on the covering plate 2 to enter the inner side of the channel of the fertilizer guide plate 1, that is, a groove body is provided on the cover shell of the fertilizer guide plate 1 to adapt the extension part 7 to enter the inner side of the channel, and the extension part 7 extends into the channel through the groove body and abuts on the bottom wall of the channel. The extension part 7 is the valve plate 4, that is, the valve plate 4 is a part of the covering plate 2, and grooves 6 are provided on the side plates on both sides of the fertilizer guide plate 1. Extension parts 9 are provided on both sides of the valve plate 4, and the extension parts 9 are connected to the fertilizer guide plate 1 through the grooves 6, that is, One end of the extension 9 is connected to the valve plate 4, and the other end thereof is slidably connected to the groove 6, so that when the covering plate 2 swings, the groove 6 will limit the swing amplitude of the covering plate 2. When the covering plate 2 does not swing initially, the end of the valve plate 4 overlaps the bottom wall of the channel to close the channel. When the covering plate 2 swings, the valve plate 4 swings with the swing of the covering plate 2 to break away from the bottom wall of the channel to open, and the opening amplitude is proportional to the swing amplitude of the covering plate 2. In this way, the covering plate 2 and the valve plate 4 does not require an adjusting mechanism 5 or an auxiliary component to produce linkage. The valve plate 2 can be opened or closed only by the linkage between the covering plate 2 and the valve plate 4, and the fertilizer will fall while throwing the soil, so that the fertilizer and soil can be mixed. In addition, since the covering plate 2 hits the fertilizer guide plate 1 at the end of the swing stroke, it vibrates, reducing the probability of its blockage, and the channel of the fertilizer guide plate 1 limits the swing direction of the covering plate by guiding the extension part 7, that is, the covering plate 2 assists the fertilizer guide plate 1 to vibrate, and the fertilizer guide plate 1 assists the covering plate 2 in guiding and limiting.

[0033] Furthermore, a closing cloth 2.2 is provided on the discharge port 2.1, one end of the closing cloth 2.2 is connected to the discharge port 2.1, and the other end of the closing cloth 2.2 is connected to the outer wall of the fertilizer guide plate 1. Preferably, the closing cloth 2.2 is a soft cloth. The purpose of providing the closing cloth 2.2 is to close the discharge port 2.1 so that soil will not be thrown out from the discharge port 2.1, and the soft material will not limit the swinging of the covering plate 2.

[0034] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A trenching machine with strong stability, comprising a frame, on which a trenching wheel, a fertilizer guide plate and a soil cover plate are arranged, wherein the soil cover plate covers the trenching wheel, and a valve plate is arranged on the fertilizer guide plate, characterized in that: The covering plate is swingably connected to the frame, and is linked to the valve plate so that the swing amplitude of the covering plate is proportional to the opening amplitude of the valve plate. During the forward stroke of the trenching machine, the covering plate swings due to the impact of soil throwing from the trenching wheel.

2. A trenching machine with high stability according to claim 1, characterized in that: The fertilizer guide plate comprises a bottom plate and two side plates arranged opposite to each other. The bottom plate and the two side plates form a passage for conveying fertilizers. The valve plate is arranged on the passage.

3. A trenching machine with high stability according to claim 1, characterized in that: The soil covering plate is linked with the valve plate through an adjusting mechanism, and the adjusting mechanism is arranged on both sides of the fertilizer guiding plate.

4. A trenching machine with high stability according to claim 3, characterized in that: The fertilizer guide plate is provided with a groove, one end of the regulating mechanism is connected to the valve plate through the groove, and the other end of the regulating mechanism is connected to the soil covering plate.

5. A trenching machine with high stability according to claim 4, characterized in that: The adjusting mechanism comprises a slider and an adjusting rod. A slide groove is arranged on the top surface of the covering plate. The slider is slidably connected in the slide groove. One end of the adjusting rod is rotatably connected to the slider. A protrusion is arranged on the side of the valve plate. The protrusion is slidably connected in the groove. The other end of the adjusting rod is rotatably connected to the protrusion.

6. A trenching machine with high stability according to claim 1, characterized in that: The fertilizer guide plate is provided with a guide mechanism to limit the sliding direction of the valve plate.

7. A trenching machine with high stability according to claim 1, characterized in that: The soil covering plate is provided with a discharge port, and one end of the fertilizer guide plate extends into the discharge port.

8. A trenching machine with high stability according to claim 7, characterized in that: The outer dimensions of the discharge port are larger than those of the fertilizer guide plate so that the covering plate has swing space.

9. A trenching machine with high stability according to claim 8, characterized in that: The discharge port is provided with a closed cloth, one end of the closed cloth is connected to the inner wall of the discharge port, and the other end of the closed cloth is connected to the fertilizer guide plate.

10. A trenching machine with high stability according to claim 1, characterized in that: The fertilizer guide plate is provided with a cover shell, and the cover shell is used to prevent the fertilizer from spilling out of the fertilizer guide plate.

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