Mountain tea garden ditching type soil covering fertilizer applicator

Abstract

The invention belongs to the technical field of fertilizer application machines, and discloses a mountain tea garden furrowing type soil covering fertilizer application machine which comprises symmetrically-installed walking structures, a machine frame installed between the walking structures, a discharging hopper installed on the machine frame, a discharging pipeline communicated with a discharging port of the discharging hopper, a soil blocking shell installed at the bottom of the machine frame, and the periphery of the soil blocking shell is closed and provided with a downward opening. Rotary blades are symmetrically installed in the soil retaining shell, the edges of the rotary blades extend out of the soil retaining shell and are embedded into the ground, the end of the discharging pipeline is located between the rotary blades in the soil retaining shell and close to the rear portions of the rotary blades, the rotary blades are rotatably installed in the soil retaining shell through a rotating shaft, and an auger is installed at the communicating position of the discharging hopper and the discharging pipeline. The auger shaft end and the rotating shaft end are connected with a transmission structure, and the transmission structure drives the auger and the rotary blade to rotate synchronously. Ditching and fertilizer discharging are carried out at the same time, the phenomenon of uneven fertilization is avoided, the soil retaining shells around the rotary blades can prevent soil from being thrown to the roots of the tea trees, and the situation that the soil is accumulated at the roots of the tea trees to cause hypoxia decay of the roots of the tea trees is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of fertilizer spreaders, and in particular to a mountain tea garden trenching type soil covering fertilizer spreader. Background Art

[0002] During the growth and development process, tea trees need to absorb a variety of nutrients, including major elements such as nitrogen, phosphorus, and potassium, as well as trace elements such as calcium, magnesium, zinc, and iron. These nutrients usually come from the soil itself, but the soil itself has limited nutrient content and low nutrient effectiveness, which is far from meeting the growth needs of tea trees. At this time, it is necessary to supplement the lack of nutrients in the soil through fertilization, and spread the fertilizer evenly in the soil so that the roots of the tea trees can evenly absorb the fertilizer nutrients, promote the healthy growth of the tea trees, and improve the utilization rate of fertilizers.

[0003] In order to evenly spread fertilizer into the soil, the prior art usually uses a trenching fertilizer applicator, which mainly includes a trenching device, a fertilizer discharging device, a backfilling device and a walking device. The walking device drives the trenching device, the fertilizing device, the backfilling device and the like to move. During the movement, the trenching device cuts the soil to form a fertilizer trench of a certain depth and width. The cut soil is thrown backwards, and then the fertilizer discharging device is opened to discharge the fertilizer downwards. The discharged fertilizer is mixed with the thrown soil and falls to the ground. Finally, the backfilling device backfills the soil mixed with fertilizer into the fertilizer trench to achieve uniform mixing of soil and fertilizer.

[0004] The trenching device and the fertilizer discharge device in the prior art are controlled by different systems, and the trenching action and the fertilizer discharge action are difficult to perform synchronously. After the trenching device cuts the soil, if the fertilizer discharge device is not opened in time, part of the soil will not be fertilized, and there is no obstruction when the soil is thrown backwards, and it may be thrown to the roots of the tea trees, making it difficult for the backfill device to backfill all the soil. The soil accumulates at the roots of the tea trees, which can easily cause the tea tree roots to lack oxygen and rot, affecting the growth of the tea trees. Summary of the invention

[0005] To this end, the present invention provides a trenching type soil covering fertilizer applicator for mountain tea gardens to solve the technical problems in the prior art that the trenching device and the fertilizer discharge device are controlled by different systems, the trenching action and the fertilizer discharge action are difficult to perform synchronously, resulting in uneven fertilization, and the soil is thrown to the roots of the tea trees and piled up, which easily causes the tea tree roots to lack of oxygen and rot, affecting the growth of the tea trees.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A mountain tea garden trenching type soil covering fertilizer spreading machine, comprising symmetrically installed walking structures, a frame installed between the walking structures, a lower hopper installed on the frame, and a discharge port of the lower hopper connected to a lowering pipe;

[0008] A retaining shell is installed at the bottom of the frame, the retaining shell is closed on all sides and open downwards, rotary tillers are symmetrically installed in the retaining shell, the edges of the rotary tillers extend out of the retaining shell and are embedded in the ground, and the end of the feed pipe is located between the rotary tillers in the retaining shell and close to the rear of the rotary tillers;

[0009] The rotary tiller is rotatably installed in the retaining shell through a rotating shaft, an auger is installed at the connection between the discharge hopper and the discharge pipe, and a transmission structure is connected to the auger shaft end and the rotating shaft end, and the transmission structure drives the auger and the rotary tiller to rotate synchronously;

[0010] When the auger rotates, the fertilizer in the discharge hopper is transported to the discharge pipe through the auger and discharged from the discharge pipe. At the same time, the rotary tiller rotates to shear the soil and throws the soil backward, so that the soil thrown backward and the fertilizer discharged from the discharge pipe are continuously mixed to obtain mixed soil material, and then the shell wall of the retaining shell close to the rear side is scraped and compacted during the forward movement.

[0011] Furthermore, the bottom of the retaining shell wall is flush with the ground.

[0012] Further, the transmission structure includes a small pulley installed at the end of the auger shaft, a large pulley installed at the end of the rotating shaft, a belt and a first drive motor;

[0013] The belt is sequentially sleeved on the small pulley and the large pulley, and the driving end of the first driving motor is connected to the side of the small pulley;

[0014] The first driving motor drives the small pulley to rotate, and the auger and the belt follow the movement. The belt moves and synchronously drives the large pulley to rotate. The rotation of the large pulley drives the rotary blade to rotate.

[0015] Furthermore, both ends of the rotating shaft penetrate the side wall of the retaining shell, and at least one end of the rotating shaft extends out of the side wall of the retaining shell, and the large pulley is installed at the end of the rotating shaft extending out of the side wall of the retaining shell.

[0016] Further, the frame is provided with an opening, and the belt passes through the opening;

[0017] A fixing plate is installed on the frame directly below the first driving motor, and the first driving motor is installed on the fixing plate.

[0018] Furthermore, a keyway is provided in the middle of the rotary tiller, a key is provided on the rotating shaft, and the rotary tiller and the rotating shaft are connected by engaging with the key through the keyway.

[0019] Furthermore, a material discharge channel is installed at the discharge port of the lower hopper, the auger is installed in the material discharge channel, and the material discharge channel is communicated with the discharge port of the lower hopper;

[0020] A material discharge channel interface is provided at the end of the material discharge channel, a material discharge hose is connected to the end of the material discharge channel interface, and the other end of the material discharge hose is connected to the material discharge pipe.

[0021] Furthermore, a circular hole is provided on the frame directly opposite to the material discharge pipe, and the material discharge hose passes through the circular hole and is connected to the material discharge pipe.

[0022] Furthermore, the walking structure includes driving wheels, driven wheels, and crawler tracks located on both sides of the frame;

[0023] A power driving member is installed between the driving wheels, a driven connecting shaft is passed through the center of the driven wheel, and the crawler belts are respectively sleeved on the driving wheels and the driven wheels on both sides of the frame and matched with the driving wheels and the driven wheels.

[0024] Furthermore, a driving connecting shaft is provided through the center of the driving wheel;

[0025] A connecting column is installed at the corner of the frame, and a shaft sleeve is connected to the bottom end of the connecting column, and the shaft sleeve cooperates with the active connecting shaft and the driven connecting shaft;

[0026] The power driving member drives the driving wheel to rotate through the driving connecting shaft, and the rotation of the driving wheel drives the crawler track to move.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The present invention drives the auger and the rotary tiller to rotate synchronously through a transmission structure. The rotary tiller rotates to shear the soil while the auger transports fertilizer. The sheared soil is thrown backwards driven by the rotational force of the rotary tiller and mixed with the fertilizer to form mixed soil material, which then falls to the ground. Subsequently, in the process of being driven forward by the walking structure, the mixed soil material is scraped and compacted by the shell wall of the retaining shell close to the rear side. The ditching action and the fertilizer discharge action are performed simultaneously, so that the thrown-up soil can inevitably be mixed with the fertilizer, thereby avoiding the phenomenon of uneven fertilization. The soil gradually disperses in the process of being thrown out, and can be mixed with the fertilizer more evenly. In the process of the soil being thrown out backwards, the retaining shell around the rotary tiller can prevent the soil from being thrown toward the roots of the tea trees, thereby avoiding the accumulation of soil at the roots of the tea trees and causing the roots of the tea trees to rot due to lack of oxygen. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0030] Figure 1 A schematic diagram of the overall structure of a mountain tea garden trenching type soil covering fertilizer spreading machine provided by an embodiment of the present invention;

[0031] Figure 2 A schematic diagram of the bottom structure of a mountain tea garden trenching type soil covering fertilizer spreading machine provided by an embodiment of the present invention;

[0032] Figure 3 It is a schematic diagram of the overall structure of the transmission assembly and the auger in the embodiment of the present invention;

[0033] Figure 4 is a schematic diagram of the overall structure of a power drive member in an embodiment of the present invention;

[0034] Figure 5 It is a schematic diagram of the overall structure of the feed pipe, the V-shaped anti-blocking piece, and the retaining shell in the embodiment of the present invention;

[0035] Figure 6 It is a schematic diagram of the overall structure of the rack in an embodiment of the present invention.

[0036] The numbers in the figure represent the following:

[0037] 1-frame; 2-feeding hopper; 3-feeding channel; 4-rotary tiller; 5-feeding pipeline; 6-auger; 7-transmission structure; 8-travel structure; 9-opening; 10-fixed plate; 11-feeding channel interface; 12-feeding hose; 13-round hole; 14-soil retaining shell; 15-rotating shaft; 16-soil retaining plate; 17-mounting plate; 18-handrail; 19-feeding hopper bracket; 20-V-shaped anti-blocking plate; 21-active connecting shaft; 22-connecting column; 23-sleeve;

[0038] 701- small pulley; 702- large pulley; 703- belt; 704- first drive motor;

[0039] 801-driving wheel; 802-driven wheel; 803-track; 804-driven connecting shaft; 805-power drive member;

[0040] 8051-first bevel gear; 8052-second bevel gear; 8053-driven gear; 8054-driving gear; 8055-second drive motor; 8056-third bevel gear; 8057-first connecting rod; 8058-second connecting rod; 8059-bearing. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] like Figure 1 , Figure 3 As shown, the present invention provides a mountain tea garden trenching type soil covering fertilizer spreading machine, comprising a symmetrically installed walking structure 8, a frame 1 is installed between the walking structures 8, a lower hopper 2 is installed on the frame 1, and a discharge port of the lower hopper 2 is connected to a lowering pipe 5;

[0043] A retaining shell 14 is installed at the bottom of the frame 1. The retaining shell 14 is closed on all sides and opened downward. Rotary tillage blades 4 are symmetrically installed in the retaining shell 14. The edges of the rotary tillage blades 4 extend out of the retaining shell 14 and are embedded in the ground. The end of the feed pipe 5 is located between the rotary tillage blades 4 in the retaining shell 14 and close to the rear of the rotary tillage blades 4.

[0044] The rotary tiller 4 is rotatably installed in the retaining shell 14 through the rotating shaft 15. An auger 6 is installed at the connection between the discharge hopper 2 and the discharge pipe 5. The shaft end of the auger 6 and the end of the rotating shaft 15 are connected with a transmission structure 7. The transmission structure 7 drives the auger 6 and the rotary tiller 4 to rotate synchronously.

[0045] When the auger 6 rotates, the fertilizer in the discharge hopper 2 is transported to the discharge pipe 5 through the auger 6 and discharged from the discharge pipe 5. At the same time, the rotary tiller 4 rotates to shear the soil and throws the soil backwards, so that the soil thrown backwards and the fertilizer discharged from the discharge pipe 5 are continuously mixed to obtain a mixed soil material, and then the shell wall of the retaining shell 14 close to the rear side is scraped and compacted during the forward movement.

[0046] The present invention drives the auger 6 and the rotary tiller 4 to rotate synchronously through the transmission structure 7. The rotary tiller 4 rotates to shear the soil while the auger 6 transports fertilizer. The sheared soil is thrown backwards driven by the rotational force of the rotary tiller 4, mixed with the fertilizer to form a mixed soil material and then falls to the ground. Subsequently, in the process of being driven forward by the walking structure 8, the mixed soil material is scraped and compacted by the shell wall of the retaining shell 14 close to the rear side. The ditching action and the fertilizer discharge action are carried out simultaneously, so that the thrown soil can inevitably be mixed with the fertilizer, avoiding the phenomenon of uneven fertilization, and the soil gradually disperses in the process of being thrown out, and can be mixed with the fertilizer more evenly. In the process of the soil being thrown backwards, the retaining shell 14 around the rotary tiller 4 can prevent the soil from being thrown toward the roots of the tea trees, avoiding the accumulation of soil at the roots of the tea trees due to lack of oxygen and rot of the tea tree roots.

[0047] The design of the above structure can not only make the soil loose and breathable, providing a basis for the uniform distribution of fertilizer in the soil, but also the efficient operation of the auger 6 can avoid the accumulation or blockage of materials during the transportation process, thus ensuring the continuity and stability of the fertilization operation.

[0048] The blade of the rotary tiller 4 needs to extend below the ground when shearing and throwing out the soil. In order to prevent the soil from being thrown toward the roots of the tea leaves along the ground, the bottom of the shell wall of the retaining shell 14 is flush with the ground, so that the soil thrown out by the rotary tiller 4 falls within the blocking range of the retaining shell 14. On the other hand, after the mixed soil is scraped and compacted by the rear shell wall of the retaining shell 14, the scraped soil is flush with the surrounding ground.

[0049] like Figure 3 As shown, in order to enable the transmission structure 7 to simultaneously drive the auger 6 and the rotary blade 4 to rotate, the transmission structure 7 is designed to include a small pulley 701 installed at the shaft end of the auger 6, a large pulley 702 installed at the end of the rotating shaft 15, a belt 703, and a first drive motor 704. The belt 703 is sequentially sleeved on the small pulley 701 and the large pulley 702. The driving end of the first drive motor 704 is connected to the side of the small pulley 701. The small pulley 701 is driven by the first drive motor 704 to rotate, so that the auger 6 and the belt 703 follow the movement. The belt 703 moves and synchronously drives the large pulley 702 to rotate. The rotation of the large pulley 702 drives the rotary blade 4 to rotate. The belt 703 is used as a power medium to drive the small pulley 701 and the large pulley 702 to rotate simultaneously, and the first drive motor 704 provides power, so that the auger 6 and the rotary blade 4 rotate simultaneously.

[0050] The rotating shaft 15 is installed inside the retaining shell 14 and is driven to rotate by the large pulley 702 at its end. The rotation of the rotating shaft 15 drives the rotary tiller 4 to rotate. The soil thrown up when the rotary tiller 4 rotates may block the large pulley 702, thereby affecting the belt 703 driving the large pulley 702 to rotate. In order to prevent the soil thrown up by the rotary tiller 4 from blocking the large pulley 702, the large pulley 702 is installed on the outer wall of the retaining shell 14. Specifically, both ends of the rotating shaft 15 pass through the side wall of the retaining shell 14, and at least one end of the rotating shaft 15 extends out of the side wall of the retaining shell 14. The large pulley 702 is installed on the end of the rotating shaft 15 extending out of the side wall of the retaining shell 14. At this time, the large pulley 702 installed on the outer wall of the retaining shell 14 drives the rotary tiller 4 installed in the retaining shell 14 to rotate through the rotating shaft 15, thereby preventing the soil thrown out of the rotary tiller 4 from blocking the large pulley 702.

[0051] like Figure 6 As shown, the auger 6 and the small pulley 701 are installed above the frame 1, and the rotary tiller 4 and the large pulley 702 are installed below the frame 1. If power is to be transmitted through the belt 703, the belt 703 needs to pass through the frame 1. In order to allow the belt 703 to pass through the frame 1, an opening 9 is provided on the frame 1. The belt 703 passes through the opening 9 and is then sequentially sleeved on the small pulley 701 and the large pulley 702. The existence of the opening 9 prevents the frame 1 from hindering the rotation of the belt 703, so that the belt 703 can drive the small pulley 701 and the large pulley 702 to rotate at the same time.

[0052] The driving end of the first drive motor 704 is connected to the side of the small pulley 701 and provides power to the transmission structure 7 at all times. Therefore, the first drive motor 704 needs to move synchronously with the walking structure 8. In order to enable the first drive motor 704 to move with the walking structure 8, a fixed plate 10 is installed on the frame 1 directly below the first drive motor 704. The first drive motor 704 is installed on the fixed plate 10, and the height of the fixed plate 10 is sufficient to make the output end of the first drive motor 704 and the small pulley 701 on the same horizontal line.

[0053] The rotating shaft 15 rotates and drives the rotary blade 4 to rotate. The rotary blade 4 and the rotating shaft 15 need to be fixedly connected. In order to fix the rotary blade 4 and the rotating shaft 15, a key slot is provided in the middle of the rotary blade 4, and a key is provided on the rotating shaft 15. The rotary blade 4 and the rotating shaft 15 are connected through the key slot and the key engagement. After the rotary blade 4 is fixedly connected to the rotating shaft 15, the rotating shaft 15 is driven to rotate by the large pulley 702, thereby driving the rotary blade 4 to rotate. In order to make the soil crushing more efficient, the rotary blade 4 can be set to multiple. When setting, the distance between adjacent rotary blades 4 does not exceed the width of the fertilizer ditch, and the rotary tillage depth of the rotary blade 4 is adjustable.

[0054] The lower hopper 2 is installed above the frame 1, and the lowering pipe 5 is installed below the frame 1. The fertilizer in the lower hopper 2 is transported to the lowering pipe 5 through the auger 6. The auger 6 is composed of a rotating shaft and a blade spirally installed on the rotating shaft. Therefore, during the process of transporting the fertilizer by the auger 6, the fertilizer may spill from the auger 6. In order to prevent the fertilizer from spilling from the auger 6, a lowering channel 3 is installed at the discharge port of the lower hopper 2. The auger 6 is installed in the lowering channel 3. The lowering channel 3 is connected with the discharge port of the lower hopper 2. The fertilizer enters the lowering channel 3 from the discharge port of the lower hopper 2 and is transported to the discharge port by the auger installed in the lowering channel 3. The feeding channel 3 is actually installed horizontally below the feeding hopper 2 to prevent the fertilizer from falling into the feeding channel 5 under its own gravity. At this time, a transmission medium should be installed between the feeding channel 3 and the feeding channel 5 so that the fertilizer in the feeding channel 3 can flow into the feeding channel 5. In order to make the feeding channel 3 communicate with the feeding channel 5, a feeding channel interface 11 is provided at the end of the feeding channel 3. A feeding hose 12 is connected to the end of the feeding channel interface 11. The other end of the feeding hose 12 is connected to the feeding channel 5. After the fertilizer flows out of the feeding channel 3, it enters the feeding channel 5 through the feeding hose 12 and then falls to the ground.

[0055] The unloading channel 3 and the unloading pipe 5 are connected by a unloading hose 12 , and the unloading hose 12 needs to pass through the frame 1 . In order to allow the unloading hose 12 to pass through the frame 1 , a circular hole 13 is provided on the frame 1 opposite to the unloading pipe 5 , and the unloading hose 12 passes through the circular hole 13 to be connected to the unloading pipe 5 .

[0056] like Figure 2 As shown, the frame 1 is installed on the walking structure 8, and the walking structure 8 drives all the components installed on the frame 1 to move. Tea trees are mostly planted in uneven mountains. The walking structure 8 needs to overcome the uneven mountains and move forward steadily. In order to enable the walking structure 8 to move steadily on the mountain, the walking structure 8 includes a driving wheel 801, a driven wheel 802, and a crawler 803 located on both sides of the frame 1. A power driving member 805 is installed between the driving wheels 801, and a driven connecting shaft 804 is penetrated in the center of the driven wheel 802. The crawler 803 is respectively sleeved on the driving wheel 801 and the driven wheel 802 on both sides of the frame 1, and cooperates with the driving wheel 801 and the driven wheel 802, wherein the crawler 803 is connected in sequence by a plurality of crawler plates to form a continuous ring structure;

[0057] In order to ensure that the frame 1 can be stably installed on the walking structure 8, an active connecting shaft 21 is passed through the center of the driving wheel 801, and connecting columns 22 are installed at the corners of the frame 1. The bottom end of the connecting column 22 is connected to a shaft sleeve 23. The shaft sleeve 23 cooperates with the active connecting shaft 21 and the driven connecting shaft 804. The power driving member 805 drives the driving wheel 801 to rotate through the active connecting shaft 21, and the rotation of the driving wheel 801 drives the track 803 to move.

[0058] In order to have better passing performance in the tea garden, the arrangement of the driving wheel 801, the driven wheel 802, and the crawler 803 is "two wheels and one belt", that is, a crawler 803 is set on a driving wheel 801 and a driven wheel 802, and the driving wheel 801 drives the driven wheel 802 to rotate through the crawler 803. This design method can make the walking structure 8 walk more smoothly. The frame 1 is installed on the driving connecting shaft 21 and the driven connecting shaft 804, and the driving wheel 801 is driven to rotate through the power driving member 805. The driving wheel 801 rotates to drive the crawler 803 to rotate, and the crawler 803 drives the driven wheel 802 to rotate, so that the walking structure 8 moves;

[0059] like Figure 4 As shown, due to the ruggedness of the mountain, when the walking structure 8 moves in the mountain, the left and right driving wheels 801 need to rotate at different speeds according to the respective terrains to achieve smooth travel. Therefore, the power driving member 805 of the present invention adopts the differential principle. Specifically, the power driving member 805 includes a first bevel gear 8051 installed at the end of an active connecting shaft 21 and a second bevel gear 8052 installed at the end of another active connecting shaft 21. A driven gear 8053 is installed on the active connecting shaft 21 near the first bevel gear 8051, a driving gear 8054 is installed on the side of the driven gear 8053, a second driving motor 8055 is installed on the side of the driving gear 8054, the driving gear 8054 is meshed with the driven gear 8053, and a third bevel gear 8056 is symmetrically installed on the side of the first bevel gear 8051, and the third bevel gear 8056 is meshed with the first bevel gear 8051 and the second bevel gear 8052.

[0060] The second driving motor 8055 drives the active gear 8054 to rotate, so that the active gear 8054 drives the driven gear 8053 to rotate, and the active connecting shaft 21 rotates synchronously. When the active connecting shaft 21 rotates, it drives the active wheel 801 connected thereto to rotate, the first bevel gear 8051 rotates to drive the third bevel gear 8056 to rotate, the third bevel gear 8056 drives the second bevel gear 8052 to rotate, and the second bevel gear 8052 drives another active connecting shaft 21 to rotate, so that the other active connecting shaft 21 rotates to drive the active wheel 801 connected thereto to rotate. This design allows the two active connecting shafts 21 to drive the two active wheels 801 to rotate at different angular velocities, thereby helping the walking structure 8 to travel under complex conditions such as turning and climbing. This design is suitable for tea rows with different widths and mountainous terrain with large inclinations.

[0061] The third bevel gear 8056 is meshed with the first bevel gear 8051 and the second bevel gear 8052 at the same time, and it is necessary to ensure that the third bevel gear 8056 rotates between the first bevel gear 8051 and the second bevel gear 8052. In order to install the third bevel gear 8056 between the first bevel gear 8051 and the second bevel gear 8052, a first connecting rod 8057 and a second connecting rod 8058 are installed at the end of the active connecting shaft 21 close to the first bevel gear 8051, and the other ends of the first connecting rod 8057 and the second connecting rod 8058 are installed on another active connecting shaft 21 close to the second bevel gear 8051. At the end of the second bevel gear 8052, the third bevel gear 8056 is respectively installed on the first connecting rod 8057 and the second connecting rod 8058. At this time, the first bevel gear 8051, the second bevel gear 8052, and the third bevel gear 8056 are all located inside the first connecting rod 8057 and the second connecting rod 8058, so that the first bevel gear 8051 can transmit power to the second bevel gear 8052 through the third bevel gear 8056. On the other hand, the first connecting rod 8057 and the second connecting rod 8058 can connect the two active connecting shafts 21 to form a whole.

[0062] If the first connecting rod 8057 and the second connecting rod 8058 are directly connected to the second transmission shaft 8052, the movement of the second transmission shaft 8052 will be restricted, and friction and wear will be generated between the components, affecting the fit between the components. Therefore, a bearing 8059 is installed on the second transmission shaft 8052, and the first connecting rod 8057 and the second connecting rod 8058 are connected to the second transmission shaft 8052 through the bearing 8059. The bearing 8059 not only connects the first connecting rod 8057, the second connecting rod 8058 and the second transmission shaft 8052 to each other, but also makes the movement relationship between the first connecting rod 8057, the second connecting rod 8058 and the second transmission shaft 8052 not restrict each other, and at the same time can reduce the friction between the components and improve the stability of the power drive part 805.

[0063] The retaining shell 14 is installed under the frame 1 to prevent the soil thrown up by the rotary tiller 4 from being thrown toward the roots of the tea trees. However, the existence of the retaining shell 14 cannot hinder the rotation of the rotary tiller 4. Therefore, the retaining shell 14 includes a plurality of retaining plates 16. Two adjacent retaining plates 16 are connected end to end to form a rectangular shell. The rotary tiller 4 and the feed pipe 5 are installed inside the rectangular shell, so that the soil thrown up by the rotary tiller 4 is mixed with the fertilizer in the rectangular shell formed by the retaining shell 14 and falls into the fertilizer ditch behind.

[0064] The fertilizer falls into the discharge pipe 5 in the discharge hose 12 mainly by its own gravity. Therefore, the discharge hose 12 needs to be tilted downward. In order to provide sufficient downward tilting space for the discharge hose 12, a discharge hopper bracket 19 is installed on the frame 1. The discharge hopper 2 is installed on the discharge hopper bracket 19. The discharge hopper bracket 19 raises the discharge hopper 2 and the discharge channel 3 by a certain distance, so that when the discharge hose 12 is connected to the discharge channel 3 and the discharge pipe 5 at the same time, it is in a downward tilted state, which is convenient for the fertilizer to flow into the discharge pipe 5.

[0065] like Figure 5 As shown, the rotary blade 4 breaks the soil and throws it backwards, and the feed pipe 5 is installed behind the rotary blade 4. The thrown soil may enter the feed pipe 5 and block the pipe opening. In order to prevent the soil from entering the feed pipe 5, a V-shaped anti-blocking piece 20 is installed on the outer wall of the feed pipe 5 near the rotary blade 4. The lowest end of the V-shaped anti-blocking piece 20 is lower than the feed opening of the feed pipe 5. When the rotary blade 4 throws the soil backwards, the soil will not enter the feed pipe 5 due to the obstruction of the V-shaped anti-blocking piece 20, thereby avoiding blockage of the feed pipe 5.

[0066] The second drive motor 8055 is installed on the side of the driving gear 8054 and provides power for the driving gear 8054. Therefore, the second drive motor 8055 needs to move with the walking structure 8. In order to enable the second drive motor 8055 to move with the driving gear 8054, a mounting plate 17 is installed on the frame 1 near the driving gear 8054, and the second drive motor 8055 is fixedly mounted on the mounting plate 17 by a number of screws and nuts.

[0067] like Figure 1 As shown, the amount of fertilizer applied in different areas of the mountain tea garden is different. If only the second drive motor 8055 is used to control the uniform speed, the area requiring a large amount of fertilizer will have too little fertilizer applied, while the area requiring a small amount of fertilizer will have too much fertilizer applied, resulting in uneven fertilizer distribution. In order to be able to change the travel speed according to the amount of fertilizer applied, a handrail 18 is installed at the rear position of the frame 1. The travel speed is changed by manually pulling the handrail 18. When encountering an area requiring a large amount of fertilizer, the handrail 18 is manually dragged to reduce the travel speed. When encountering an area requiring a small amount of fertilizer, the handrail 18 is manually pushed to increase the travel speed. Changing the travel speed by the handrail 18 is convenient for humans to increase or decrease the amount of fertilizer according to different areas.

[0068] When in use, first load the fertilizer into the lower hopper 1, and the fertilizer falls into the discharge channel 3 from the lower hopper 2, turn on the first drive motor 704 and the second drive motor 8055, and the walking structure 8 drives the frame 1 and the components installed on the frame 1 to move, and at the same time, the fertilizer falls to the ground from the discharge pipe 5 after being transmitted by the auger 6, and the rotary tiller 4 and the auger 6 are connected by the transmission structure 7, and the rotary tiller 4 contacts the soil below, crushes the soil under high-speed rotation and throws it backwards, and the thrown soil and fertilizer are caught by the retaining shell 14 and fall into the fertilizer ditch at the rear.

[0069] The invention has good passing performance and wide applicability. It can be used in both flat tea gardens and sloping tea gardens, and can apply both granular fertilizers and powdered organic fertilizers, solving the problem that there is no mechanically available powdered organic fertilizers. When working, the rotary tiller 4 and the auger 6 rotate simultaneously, so that the soil breaking action and the fertilizing action are carried out simultaneously. The retaining shell 14 allows the broken soil and the fertilizer on the soil surface to be directly thrown into the fertilizer ditch behind, preventing the soil from being thrown to both sides, thereby realizing the functions of uniform fertilization and preventing soil from splashing out.

[0070] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A mountain tea garden trenching type soil covering fertilizer machine, characterized in that: It comprises symmetrically installed walking structures (8), a frame (1) is installed between the walking structures (8), a material discharge hopper (2) is installed on the frame (1), and a material discharge port of the material discharge hopper (2) is connected to a material discharge pipe (5); A retaining shell (14) is installed at the bottom of the frame (1), the retaining shell (14) is closed on all sides and open downwards, a rotary tiller (4) is symmetrically installed in the retaining shell (14), the edge of the rotary tiller (4) extends out of the retaining shell (14) and is embedded in the ground, and the end of the feed pipe (5) is located between the rotary tiller (4) in the retaining shell (14) and close to the rear of the rotary tiller (4); The rotary tiller (4) is rotatably mounted in the retaining shell (14) via a rotating shaft (15); an auger (6) is mounted at the connection point between the discharge hopper (2) and the discharge pipe (5); a transmission structure (7) is connected to the shaft end of the auger (6) and the end of the rotating shaft (15); the transmission structure (7) drives the auger (6) and the rotary tiller (4) to rotate synchronously; When the auger (6) rotates, the fertilizer in the feed hopper (2) is transported to the feed pipe (5) through the auger (6) and discharged from the feed pipe (5), and at the same time, the rotary tiller (4) rotates to shear the soil and throws the soil backward, so that the soil thrown backward and the fertilizer discharged from the feed pipe (5) are continuously mixed to obtain a mixed soil material, and then the shell wall of the retaining shell (14) close to the rear side is scraped and compacted in the process of moving forward.

2. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 1, characterized in that: The bottom of the retaining shell (14) is flush with the ground.

3. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 1, characterized in that: The transmission structure (7) comprises a small pulley (701) mounted on the shaft end of the auger (6), a large pulley (702) mounted on the end of the rotating shaft (15), a belt (703) and a first driving motor (704); The belt (703) is sequentially sleeved on the small pulley (701) and the large pulley (702), and the driving end of the first driving motor (704) is connected to the side of the small pulley (701); The first driving motor (704) drives the small pulley (701) to rotate, and the auger (6) and the belt (703) follow the movement. The belt (703) moves and synchronously drives the large pulley (702) to rotate. The rotation of the large pulley (702) drives the rotary blade (4) to rotate.

4. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 3, characterized in that: Both ends of the rotating shaft (15) pass through the side wall of the retaining shell (14), and at least one end of the rotating shaft (15) extends out of the side wall of the retaining shell (14). The large pulley (702) is installed at the end of the rotating shaft (15) extending out of the side wall of the retaining shell (14).

5. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 3, characterized in that: The frame (1) is provided with an opening (9), and the belt (703) passes through the opening (9); A fixing plate (10) is installed on the frame (1) directly below the first drive motor (704), and the first drive motor (704) is installed on the fixing plate (10).

6. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 1, characterized in that: A keyway is provided in the middle of the rotary tiller (4), a key is provided on the rotating shaft (15), and the rotary tiller (4) and the rotating shaft (15) are connected by engaging with the keyway.

7. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 1, characterized in that: A material discharge channel (3) is installed at the discharge port of the material discharge hopper (2), the auger (6) is installed in the material discharge channel (3), and the material discharge channel (3) is communicated with the discharge port of the material discharge hopper (2); A material discharge channel interface (11) is provided at the end of the material discharge channel (3), a material discharge hose (12) is connected to the end of the material discharge channel interface (11), and the other end of the material discharge hose (12) is connected to the material discharge pipe (5).

8. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 7, characterized in that: A circular hole (13) is provided on the frame (1) directly opposite to the material discharge pipe (5), and the material discharge hose (12) passes through the circular hole (13) and is connected to the material discharge pipe (5).

9. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 1, characterized in that: The walking structure (8) comprises a driving wheel (801), a driven wheel (802), and a crawler track (803) located on both sides of the frame (1); A power driving member (805) is installed between the driving wheels (801), a driven connecting shaft (804) is passed through the center of the driven wheel (802), and the crawler belt (803) is respectively sleeved on the driving wheel (801) and the driven wheel (802) on both sides of the frame (1), and cooperates with the driving wheel (801) and the driven wheel (802).

10. A mountain tea garden trenching type soil covering fertilizer spreading machine according to claim 9, characterized in that: A driving connecting shaft (21) is provided through the center of the driving wheel (801); A connecting column (22) is installed at the corner of the frame (1), and a shaft sleeve (23) is connected to the bottom end of the connecting column (22), and the shaft sleeve (23) cooperates with the active connecting shaft (21) and the driven connecting shaft (804); The power driving member (805) drives the driving wheel (801) to rotate via the driving connecting shaft (21), and the rotation of the driving wheel (801) drives the crawler track (803) to move.

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