Dynamic coupling bionic drag-reducing layered subsoiler based on sting of carpenter bee

Abstract

The application provides a dynamic coupling bionic resistance-reducing layered deep loosening machine based on a wood bee ovipositor, which comprises a deep loosening support, a transmission mechanism and a plurality of deep loosening mechanisms, the transmission mechanism and the plurality of deep loosening mechanisms are arranged on the deep loosening support, and the transmission mechanism is connected with a power mechanism of a front tractor; all the deep loosening mechanisms can move synchronously under the action of the transmission mechanism, each deep loosening mechanism comprises a differential assembly and two front and rear arranged deep loosening shovels connected with the differential assembly, the end of the shovels with the shovel tips is the front end, and the two deep loosening shovels in each deep loosening mechanism can realize differential motion through the differential assembly. The deep loosening machine has the characteristics of low working resistance, low oil consumption and strong adaptability.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of agricultural tillage machinery, in particular to a dynamic coupling bionic resistance-reducing layered deep loosening machine based on a carpenter bee egg-laying organ. BACKGROUND

[0002] Deep loosening, as a key technology in conservation tillage, mainly refers to loosening soil without turning over the soil by using a deep loosening component, so as to break the plough pan, reduce the influence of soil erosion, water erosion and other factors on soil fertility decline, and improve the soil water storage and soil conservation capacity.

[0003] In recent years, with the continuous popularization and application of conservation tillage technology in the field of agriculture, various deep loosening devices have emerged in an endless stream. However, due to the influence of soil hardening and excessive straw coverage, the existing deep loosening devices all have the problems of large tillage resistance, serious wear of deep loosening blades, and large influence of deep loosening range on soil depth. Therefore, it is particularly important to invent a deep loosening device that can effectively reduce the working resistance, improve the service life of the tillage component, and ensure the tillage quality.

[0004] Carpenter bees are large bees that are named for their behavior of drilling holes in wood to lay eggs. Therefore, carpenter bees have evolved an egg-laying organ that can efficiently penetrate hard wood materials. The egg-laying organ of the animal uses the reciprocating longitudinal movement of a pair of valves when digging, and when the valves slide relative to each other, the backward teeth on any valve are used to provide the necessary reaction force to push the other valve into the wood. Therefore, the process of carpenter bees laying eggs can be regarded as a dynamic resistance reduction system, and if it is used in a deep loosening device, it can effectively reduce the resistance when the device loosens the soil, which can provide design ideas for current vibration deep loosening devices. Cats extend their claws when hunting, and retract them when relaxing to maintain the sharpness of the claws. Therefore, by combining the ability of carpenter bees to efficiently penetrate hard wood materials and the ability of cat claws to adaptively adjust, a dynamic coupling bionic resistance-reducing layered deep loosening device with low working resistance, low fuel consumption and strong adaptability can be designed. SUMMARY

[0005] In view of the problems of large working resistance and serious wear of deep loosening blades of the deep loosening device in the prior art, the present application provides a dynamic coupling bionic resistance-reducing layered deep loosening machine based on a carpenter bee egg-laying organ, which has the characteristics of low working resistance, low fuel consumption and strong adaptability.

[0006] In order to achieve the above-mentioned purpose, the specific scheme adopted by the present application is as follows:

[0007] A dynamic coupling bionic resistance-reducing layered deep loosening machine based on a carpenter bee egg-laying organ, comprising:

[0008] a deep loosening support for overall support;

[0009] A transmission mechanism is arranged on the deep loosening support and connected with the power mechanism of the front towing vehicle.

[0010] A plurality of deep loosening mechanisms are arranged on the deep loosening support and can move synchronously under the action of the transmission mechanism, and each deep loosening mechanism comprises a differential assembly and two deep loosening shovels arranged in front and back and connected with the differential assembly, and the two deep loosening shovels in each deep loosening mechanism can realize differential motion through the differential assembly.

[0011] Further, the differential assembly comprises a box body, an input shaft connected with the transmission mechanism at one end and extending into the box body, a swash plate of a semispherical structure connected with the input shaft through a spline, a friction plate arranged on the plane of the swash plate, a sliding shoe pressed against the friction plate, and a ball pin with a pin head arranged in the sliding shoe, and the sliding shoe and the friction plate are supported by static pressure to form liquid lubrication; the tail of the deep loosening shovel extends into the box body and is connected with the ball pin.

[0012] Further, the deep loosening shovel comprises a shovel handle and a shovel tip, the tail of the shovel handle is connected with the rod of the ball pin, the head is a circular arc structure extending downward and forward, and the shovel tip is arranged at the head of the shovel handle.

[0013] Further, two side wing shovels extending upward and rearward are symmetrically arranged on the left and right sides of the shovel handle, and the included angle between the side wing shovel and the shovel handle can be adjusted.

[0014] Further, at least one pair of side wing shovel fixing plates are symmetrically arranged on the shovel handle, the side wing shovel fixing plates are hingedly connected with the front end of the side wing shovel, and a U-shaped elastic piece capable of adjusting the opening angle of the side wing shovel is arranged between the middle part of the side wing shovel and the shovel handle.

[0015] Further, the included angle between the blade surface of the side wing shovel and the normal plane of the shovel handle is 45°.

[0016] Further, the shovel tip is a wedge-shaped structure.

[0017] Further, the deep loosening support comprises a quadrilateral frame with two parallel short rods and two parallel long rods, a suspension cooperating with the front towing vehicle is arranged on the quadrilateral frame, a plurality of connecting rods parallel to the short rods are connected in the quadrilateral frame, a support rod is arranged on the connecting rod and / or the short rod, the extension direction of the support rod is perpendicular to the extension direction of the connecting rod, all the support rods are arranged in the same axis and are spaced apart, and the adjacent end portions of the adjacent two support rods are connected with the two opposite side surfaces of the box body.

[0018] Further, the transmission mechanism comprises a reducer fixed to the subsoiler support and connected with the power mechanism, a driving shaft connected with the output shaft of the reducer, a plurality of driven shafts symmetrically distributed on both sides of the driving shaft and connected with the driving shaft through a chain wheel and chain structure, and a plurality of universal joints connected with the rear ends of the driving shaft and the driven shafts.

[0019] Advantages:

[0020] (1) The application provides a dynamic coupling bionic resistance-reducing layered subsoiler based on a wood bee egg-laying device. The configuration of the subsoiler is based on dynamic coupling bionics of the wood bee egg-laying device digging mechanism. During subsoiling, the two subsoilers in each subsoiling mechanism realize differential propulsion through a differential assembly. The shank of one subsoiler provides the required reaction force for the shank of the other subsoiler, and this process is repeated in a cycle, so that the subsoiler reduces the need for external reaction force when entering the soil.

[0021] (2) The application provides a dynamic coupling bionic resistance-reducing layered subsoiler based on a wood bee egg-laying device. A side wing shovel with a U-shaped elastic piece is designed at the shank of the subsoiler based on cat retractable claw toes. During operation, the side wing shovel can automatically adjust the rear inclination angle according to the resistance, effectively improve the adaptive force of the side wing shovel, and reduce the working resistance and fuel consumption by simulating the characteristics of cat retractable claw toes.

[0022] (3) The application provides a differential assembly, through which the differential propulsion of the first subsoiler shank and the second subsoiler shank is realized. The input shaft of the differential assembly changes the inclination angle of the swash plate to make the two shanks have differential motion with relative speed, thereby realizing the longitudinal reciprocating feeding motion of the subsoiler. The lubrication mode of the differential assembly adopts the static pressure support principle, which can improve the pressure and other parameters of the ball pin, so that it can work at high pressure and high speed. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional axonometric view of the subsoiler in the application;

[0024] Figure 2 It is a front view of the subsoiler in the application;

[0025] Figure 3 It is a top view of the subsoiler in the application;

[0026] Figure 4 It is a side view of the subsoiler in the application;

[0027] Figure 5 It is a sectional view of the subsoiling mechanism;

[0028] Figure 6 It is a schematic view of the transmission mechanism;

[0029] Figure 7 is a deep loosening support structure schematic diagram;

[0030] Figure 8 is a deep loosening mechanism geometry parameter front view;

[0031] Figure 9 is a single deep loosening shovel plan view;

[0032] Figure 10 is the working principle of a carpenter's egg-laying device.

[0033] In the figure: 1, deep loosening support, 101, quadrilateral frame, 102, front suspension, 103, support rod, 104, connecting rod, 105, rear suspension;

[0034] 2, transmission mechanism, 201, speed reducer, 202, driving double-row sprocket, 203, driven shaft, 204, driven double-row sprocket, 205, chain, 206, universal joint;

[0035] 3, deep loosening mechanism, 31, differential assembly, 311, input shaft, 312, sealing ring, 313, friction plate, 314, sliding shoe, 315, spherical, 316, swash plate, 317, box, 32, deep loosening shovel, 32-1, second deep loosening shovel, 32-2, first deep loosening shovel, 321, shovel handle, 322, shovel tip, 323, side wing shovel fixing plate, 324, side wing shovel, 325, U-shaped elastic piece.

[0036] In the figure, the meaning of each symbol: A, touch the earth working surface, B, break the earth working surface, α1 is the angle between the tip of the first deep loosening shovel and the horizontal plane, α2 is the angle between the tip of the second deep loosening shovel and the horizontal plane, L1 is the length of the tip of the first deep loosening shovel, L2 is the length of the tip of the second deep loosening shovel, h1 is the distance between the upper side wing shovel installation plane and the tip plane of the first deep loosening shovel, h2 is the distance between the upper side wing shovel installation plane and the tip plane of the second deep loosening shovel, β1 is the angle between the upper side wing shovel plane of the first deep loosening shovel and the horizontal plane, β2 is the angle between the upper side wing shovel plane of the second deep loosening shovel and the horizontal plane, θ is the angle between the side wing shovel and the shovel handle; D1 is the left valve, D2 is the right valve, C, neck muscle tissue, D, neck, E, helmet valve traction muscle, F, helmet valve extension muscle, G, straight up barb, H, fruit flesh. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described clearly and completely below in combination with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0038] In the description of the present application, it should be noted that the terms "inner", "outer", "upper", "lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, it can be directly connected, or indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] Referring to Figure 1 The application provides a dynamic coupling bionic drag reduction layered deep loosening machine based on a wood bee egg laying device, which comprises a deep loosening support 1, a transmission mechanism 2 and a plurality of pairs of deep loosening mechanisms 3, wherein the deep loosening mechanism 3 is a dynamic deep loosening mechanism simulating a wood bee egg laying device. The specific structure of the dynamic coupling bionic drag reduction layered deep loosening machine of the present application will be described in detail below in combination with the drawings.

[0041] <Deep loosening support 1>

[0042] Referring to Figure 7 As shown in the figure, the deep loosening support 1 comprises a quadrangular frame 101 having two parallel short rods and two parallel long rods, a plurality of connecting rods 104 parallel to the short rods are connected in the quadrangular frame 101, and support rods 103 are arranged on the connecting rods 104 and the short rods, wherein the extension direction of the support rods 103 is perpendicular to the extension direction of the connecting rods 104, all the support rods 103 have the same axis and are arranged at intervals, and the adjacent ends of the adjacent two support rods 103 are connected to the two opposite sides of the box body 317 in the deep loosening mechanism 3. The connecting flange end cover is mounted on one side end face of the support rod 103.

[0043] The quadrangular frame 101 is provided with a suspension matched with the front tractor, wherein the suspension comprises a front suspension 102 and a rear suspension 105, the front suspension 102 adopts an inverted Y-shaped design, the two ends of the bottom of the front suspension 102 are connected to the quadrangular frame 101 through bolts, and the top is connected to the rear suspension 105 through bolts; the bottom of the rear suspension 105 is fixed on the rear suspension fixing plate through bolts, and the rear suspension fixing plate is welded on the quadrangular frame 101.

[0044] The deep loosening mechanism 3 is connected with the supporting rod 103 by a screw, and each deep loosening mechanism 3 is connected with the connecting rod 104 or the short rod through the supporting rods 103 on both sides to ensure the stability of the device.

[0045] <Transmission mechanism 2>

[0046] The transmission mechanism 2 is arranged on the deep loosening support 1 and can realize the synchronous movement of a plurality of deep loosening mechanisms 3 in cooperation with the power mechanism of the front tractor.

[0047] Referring to Figure 6 As shown in the figure, the transmission mechanism 2 is composed of a reducer 201, a driving shaft, a driving double-row sprocket 202, a chain 205, a universal joint 206, a driven double-row sprocket 204 and a driven shaft 203. It ensures the efficient transmission of power and the stable operation of the system.

[0048] The reducer 201 is arranged at the upper end surface of the quadrilateral frame 101, and the reducer 201 is fixed at the center position of the upper end surface of the quadrilateral frame 101 by bolts.

[0049] The driving double-row sprocket 202 is rigidly connected with the driving shaft by a key, and the front end of the driving shaft is connected with the reducer 201 by a key. A plurality of transmission shaft seats are symmetrically arranged on both sides of the reducer 201, and an angular contact ball bearing is installed in the transmission shaft seat. The front end of the driven shaft 203 is interference-fitted with the angular contact ball, the driven double-row sprocket 204 is rigidly connected with the driven shaft 203 by a key, the driving double-row sprocket 202 and the driven double-row sprocket 204 are connected by the chain 205, the ends of the driving shaft and the driven shaft 203 are connected with the front end of the universal joint 206 by a pin, and the rear end of the universal joint 206 is connected with the input shaft 311 by a pin.

[0050] The transmission process of the transmission mechanism 2 is that the reducer 201 drives the driving double-row sprocket 202 to perform chain transmission, transmits power from the reducer 201 to the chain 205, transmits power to the driven double-row sprocket 204 through the chain 205, and then transmits power to the input shaft 311 through the universal joint 206, thereby completing the complex mechanical task.

[0051] Specifically, the universal joint 206 is a double-cross universal joint.

[0052] <Deep loosening mechanism 3>

[0053] Referring to Figure 5 As shown in the figure, the deep loosening mechanism 3 is installed on the deep loosening support 1 and can move synchronously under the action of the transmission mechanism 2. Each deep loosening mechanism 3 includes a differential assembly 31 and two front and rear deep loosening shovels 32 connected with the differential assembly 31. Each component works cooperatively to realize the layering and deep loosening of soil. The end with the shovel tip facing is the front end, and the two deep loosening shovels 32 in each deep loosening mechanism 3 can realize differential movement through the differential assembly 31.

[0054] The specific structure of the differential assembly 31 and the two deep scarification shovels 32 in each deep scarification mechanism 3 is described below.

[0055] The differential assembly 31 is composed of an input shaft 311, a sliding shoe 314, a swash plate 316, a friction plate 313, a box 317, a sealing ring 312 and a ball pin 315. The sliding shoe 314, the swash plate 316, the friction plate 313 and the ball pin 315 are all arranged in the box. One end of the input shaft 311 extends out of the box 317 and is connected with the transmission mechanism 2. The other end of the input shaft 311 extends into the box 317 and is connected with the swash plate 316 through a spline. The swash plate 316 is semispherical. The friction plate 313 is installed on the plane of the swash plate 316 through six circumferentially distributed screws. The sliding shoe 314 and the friction plate 313 are lubricated by an oil film. The sliding shoe 314 limits the ball pin 315. The swash plate 316 and the friction plate 313 bear the force from the ball pin 315. The sealing ring 312 is installed in a sealing groove at the top of the box 317, which improves the sealing performance and durability of the device. The box 317 is connected with the supporting rod 103 through screws.

[0056] The differential assembly 31 makes the two deep scarification shovels 32 have relative speed by the swash plate 316, which is beneficial to adapt to different soil conditions and perform complex actions. The core components of the device, the swash plate 316 and the sliding shoe 314, are designed according to the principle of static pressure bearing. The pressure oil in the cylinder flows into the oil chamber of the sliding shoe 314 through the small hole in the middle of the ball pin 315, so that the liquid lubrication is formed between the sliding shoe 314 and the swash plate 316. The contact between the ball head of the ball pin 315 and the swash plate 316 is changed, which is beneficial to improve the pressure and other parameters of the ball pin 315, so that the ball pin 315 can work at high pressure and high speed.

[0057] The deep scarification shovel 32 includes a shovel handle 321 and a shovel tip 322. The tail of the shovel handle 321 is connected with the rod of the ball pin 315. The head of the shovel handle 321 is a downward and forward extending arc structure. The shovel tip 322 is arranged at the head of the shovel handle 321. The ball pin 315 is a threaded ball pin connecting structure. It corresponds to the threaded hole at the upper end of the shovel handle 321. When installed, the ball pin 315 and the threaded hole at the upper end of the shovel handle 321 are connected together through threads, so that the differential assembly 31 and the shovel handle 321 are fixed.

[0058] Preferably, two side wing shovels 324 extending upward and backward are symmetrically arranged on the left and right sides of the shovel handle 321. The included angle between the side wing shovels 324 and the shovel handle 321 is adjustable. Specifically, at least one pair of side wing shovel fixing plates 323 are symmetrically arranged on the shovel handle 321. The side wing shovel fixing plates 323 are hingedly connected with the front ends of the side wing shovels 324. The U-shaped elastic members 325 for adjusting the opening angle of the side wing shovels 324 are arranged between the middle parts of the side wing shovels 324 and the shovel handle 321.

[0059] The U-shaped elastic element 325 is designed to automatically extend and retract based on the needs of a cat's claws during hunting or gripping. This automatic adjustment function is incorporated into the design of the side shovel 324, enabling it to automatically adjust its tilt angle according to the soil hardness, thus improving adaptability. The U-shaped elastic element 325 allows for automatic adjustment of the tilt angle of the side shovel 324 based on soil hardness, reducing resistance and fuel consumption during deep tillage operations.

[0060] During subsoil operations, the tractor pulls the subsoiler forward, and the transmission mechanism 2 drives the input shafts 311 of all differential components 32 to rotate. The input shafts 311 of the differential components 31 rotate the swashplate 316 through the spline, thereby causing the ball pin 315 to drive the handle 321 of the subsoil shovel 32 to make longitudinal feed motion along the guide rail.

[0061] The following will be referred to Figures 1-9 The working principle of this invention will be explained.

[0062] The deep-lodging mechanism 3 provided by this invention is based on the digging mechanism of the carpenter bee ovipositor. Figure 10 The ovipositor of this animal uses a pair of valves (D1, D2) to reciprocate longitudinally during digging. As these valves slide against each other, the backward barbs on either valve (D1) provide the necessary reaction force, reducing the external reaction force required for the other valve (D2) to enter the wood. This invention designs a dynamic deep-loosening mechanism 3 by mimicking the reciprocating longitudinal movement of a pair of valves used by a carpenter's ovipositor during digging. Based on the interaction characteristics of its pair of valves and combined with the adaptive characteristics of a cat's toe joints, a deep-loosening shovel 32 is designed, enabling the deep-loosening shovel 32 to reduce the external traction force required during deep-loosening operations.

[0063] For the convenience of description, the front-end subsoiler 32 is referred to as the second subsoiler 32-1, and the rear-end subsoiler is referred to as the first subsoiler 32-2. In the case of no traction speed, the differential assembly causes the shank of the first subsoiler 32-2 to have a differential speed with the shank of the second subsoiler 32-1, i.e., the shank of the first subsoiler 32-2 moves in the opposite direction to the shank of the second subsoiler 32-1. Assuming that the shank of the first subsoiler 32-2 moves forward and the shank of the second subsoiler 32-1 moves backward, in the case of the same soil density, the compression amount of the U-shaped elastic member 325 on the shank of the first subsoiler 32-2 is smaller, i.e., the backward inclination angle of the U-shaped elastic member A5 on the first subsoiler 32-2 is smaller than the backward inclination angle of the U-shaped elastic member 325 on the second subsoiler 32-1, and thus the extrusion force required for the shank of the first subsoiler 32-2 to move forward is smaller than the extrusion force required for the shank of the second subsoiler 32-1 to move backward. If the shank of the second subsoiler 32-1 is stationary relative to the soil, the shank of the first subsoiler 32-2 moves forward under the forward reaction force provided by the shank of the second subsoiler 32-1, so that the entire machine tool moves forward under the reaction force.

[0064] In the case of traction speed v0, assuming that the speed of the shank of the first subsoiler 32-2 moving forward is v1 and the speed of the shank of the second subsoiler 32-1 moving backward is v2. When v1>v0>v2, the speed of the shank of the first subsoiler 32-2 is greater than the traction speed of the machine body, i.e., the shank of the first subsoiler 32-2 has a forward movement trend and can provide a forward force to the subsoiler, and the speed of the shank of the second subsoiler 32-1 is smaller than the traction speed of the subsoiler, i.e., the shank of the second subsoiler 32-1 has a backward movement trend and provides a backward force to the subsoiler to offset the forward force of the shank of the first subsoiler 32-2. At the same time, the shank of the second subsoiler 32-1 provides the necessary reaction force to the shank of the first subsoiler 32-2, and the mutual forces of the two are offset and compensated on the swash plate 316 of the differential assembly 31. In another working state, the process is reversed and repeated, which reduces the external reaction force required when the subsoiler 32 enters the soil, so that the force acting on the entire subsoiler is balanced.

[0065] The parameters of the subsoiler 32 are described below to help the technical personnel better understand the technical solutions of the present application.

[0066] Please refer to Figure 8The wedge-shaped tip 322 of the second subsoiler 32-1 has a length L2 of 165 mm, and the wedge-shaped tip 322 of the first subsoiler 32-2 has a length L1 of 165 mm. Through single variable comparison test, it is determined that the optimal angle a1 between the wedge-shaped tip 322 of the second subsoiler 32-1 and the horizontal plane is 23°, and the optimal angle a2 between the wedge-shaped tip 322 of the first subsoiler 32-2 and the horizontal plane is 23°. The distance h1 between the installation plane of the side wing 324 of the first subsoiler 32-2 and the plane of the wedge-shaped tip 322 is 135 mm, and the distance h2 between the installation plane of the side wing 323 of the second subsoiler 32-1 and the plane of the wedge-shaped tip 322 is 95 mm.

[0067] In each subsoiling mechanism 3, the height H1 of the first subsoiler 32-2 is 895 mm, and the height H2 of the second subsoiler 32-1 is 635 mm. Both the first subsoiler 32-2 and the second subsoiler 32-1 can complete subsoiling operation at a depth of 250 mm below the soil surface. The height difference of 260 mm between the first subsoiler 32-2 and the second subsoiler 32-1 makes the subsoiling effect of the dynamic subsoiling device more significant.

[0068] Specifically, the angle θ between the side wing 324 and the shank 321 is 26°, the angle b1 between the plane of the side wing 324 of the first subsoiler 32-2 and the horizontal plane is 26°, and the angle b2 between the plane of the side wing 324 of the second subsoiler 32-1 and the horizontal plane is 26°.

[0069] The swash plate 316 is a semi-spherical structure with a radius of 70 mm. The angle between the geometric axis of the swash plate 316 and the input shaft 311 is 22°, and the differential displacement that can be generated is about 50 mm.

[0070] The working speed of the subsoiler 32 is 1.5 m / s, and the working depth is between 250 mm and 350 mm.

[0071] It should be noted that although the present application has been described through the above embodiments, the present application can also have other various embodiments. Those skilled in the art can obviously make various corresponding changes to the present application without departing from the spirit and scope of the present application, and these changes should all belong to the scope of protection of the appended claims and equivalents thereof.

Claims

1. A dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bees, characterized in that, The utility model relates to a deep loosening device, which comprises the following parts: a deep loosening support serving as a whole support; a transmission mechanism arranged on the deep loosening support and connected with a power mechanism of a front tractor; a plurality of deep loosening mechanisms mounted on the deep loosening support and capable of synchronous movement under the action of the transmission mechanism, each of the deep loosening mechanisms comprising a differential assembly and two deep loosening shovels arranged in front of and behind the differential assembly, and the two deep loosening shovels in each deep loosening mechanism being capable of differential movement through the differential assembly; the differential assembly comprising a box body, an input shaft connected with the transmission mechanism at one end and extending into the box body, a swash plate of a semispherical structure connected with the input shaft through a spline, a friction plate mounted on the plane of the swash plate, a sliding shoe pressed against the friction plate, and a ball pin with a pin head arranged in the sliding shoe, the sliding shoe and the friction plate being supported by static pressure to form liquid lubrication, and the tail of the deep loosening shovel extending into the box body and being connected with the ball pin; the deep loosening shovel comprising a shovel handle and a shovel tip, the tail of the shovel handle being connected with the rod of the ball pin, the head of the shovel handle being a circular arc structure extending downward and forward, and the shovel tip being arranged at the head of the shovel handle.

2. The dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bee according to claim 1, characterized in that, two side wing shovels extending upward and rearward in an inclined manner are symmetrically arranged on the left and right sides of the shovel handle, and the included angle between the side wing shovels and the shovel handle can be adjusted.

3. The dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bee according to claim 2, characterized in that, at least one pair of side wing shovel fixing plates are symmetrically arranged on the shovel handle, the side wing shovel fixing plates are hingedly connected with the front ends of the side wing shovels, and a U-shaped elastic piece capable of adjusting the opening angle of the side wing shovels is arranged between the middle part of the side wing shovels and the shovel handle.

4. The dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bee according to claim 2, characterized in that, the included angle between the blade surface of the side wing shovel and the normal plane of the shovel handle is 45°.

5. The dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bee according to claim 1, characterized in that, the shovel tip is in a wedge-shaped structure.

6. The dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bee according to claim 1, characterized in that, the deep loosening support comprises a quadrangular frame with two parallel short rods and two parallel long rods, a suspension is arranged on the quadrangular frame and matched with the front tractor, a plurality of connecting rods parallel to the short rods are connected in the quadrangular frame, a support rod is arranged on the connecting rod and / or the short rod, the extension direction of the support rod is perpendicular to the extension direction of the connecting rod, the axes of all the support rods are consistent and arranged at intervals, and the adjacent ends of adjacent two support rods are connected with the two opposite sides of the box body.

7. The dynamic coupling bionic drag-reducing layered subsoiler based on the ovipositor of carpenter bee according to claim 6, characterized in that, the transmission mechanism comprises a speed reducer fixed on the deep loosening support and connected with the power mechanism, a driving shaft connected with the output shaft of the speed reducer, a plurality of driven shafts symmetrically distributed on the two sides of the driving shaft and connected with the driving shaft through a chain wheel and chain structure, and a plurality of universal joints connected with the rear ends of the driving shaft and the driven shafts, the front ends of the driven shafts being rotatably connected with transmission shaft seats fixed on the quadrangular frame and used for supporting the driven shafts.

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