Adjustable plow claw, plowing mechanism and plowing and fertilizing machine for improving saline-alkali land

Abstract

The present invention discloses an adjustable plow claw, a plowing mechanism and a plowing and fertilizing machine for improving soil in saline-alkali land, which relate to the technical field of plowing and fertilizing equipment, and include an inner plow claw and an outer plow claw; the outer plow claw is hollow in structure, and a transmission component is movably installed inside the outer plow claw along the direction in which it extends, the top end of the outer plow claw is connected to a connecting straight pipe extending in the same direction as the outer plow claw, and an adjusting screw is coaxially threadedly connected to the connecting straight pipe, and the end of the adjusting screw close to the outer plow claw extends into the outer plow claw and is rotatably connected to the transmission component; the inner plow claw extends in the same direction as the outer plow claw, and is movably installed in the outer plow claw along the extension direction of the outer plow claw, the inner plow claw is located on the side of the transmission component away from the connecting straight pipe, and is connected to the transmission component, and the bottom end of the outer plow claw is provided with an opening for the inner plow claw to extend or retract, which can be adjusted according to different landforms and plow layer depth requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of plowing and fertilizing equipment, in particular to an adjustable plow claw, a plowing mechanism and a plowing and fertilizing machine for improving saline-alkali land. Background Art

[0002] Severely saline muddy coastal lands pose a major challenge to global agriculture. Their poor soil quality severely constrains the expansion and maintenance of arable land. These soils not only contain high concentrations of salt but also exhibit extremely high bulk density (typically exceeding 1.6 g / cm³) and a shallow tillage layer (less than 15 cm in some areas). These characteristics make it difficult for traditional agricultural techniques to effectively improve soil quality, which in turn impacts crop growth and yield.

[0003] The plow claw structure of traditional plowing equipment is fixed and cannot be adjusted according to the different landforms and tillage depth requirements of saline-alkali land. In addition, traditional fertilization mostly adopts manual spreading or simple mechanical sowing. After the fertilizer is put into the feeding port, there is a lack of pre-treatment of the fertilizer. Large pieces of fertilizer can easily clog the fertilizer pipe, and it is difficult to ensure the uniform distribution of fertilizer in the soil, which can easily cause large local fertility differences and affect crop growth. When transporting fertilizer, it mostly relies on gravity or simple mechanical pushing, such as single auger feeding. When encountering lumped fertilizer or complex terrain, the feeding stability is poor, and stable fertilization of deep soil cannot be ensured. During the plowing process, soil can easily flow back into the plowing device, interfering with normal operation, and it cannot effectively cooperate with the fertilization process. It is difficult to achieve precise control and coordinated operation of plowing and fertilization depth, resulting in difficulty in fully integrating fertilizer with deep soil, reducing fertilizer utilization. Summary of the Invention

[0004] The purpose of the present invention is to provide an adjustable plow claw, a plowing mechanism and a plowing and fertilizing machine for saline-alkali land improvement, so as to solve the problems existing in the above-mentioned prior art and be able to be adjusted according to different landforms and plow layer depth requirements.

[0005] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides an adjustable plow claw, comprising an inner plow claw and an outer plow claw;

[0006] The outer plow claw is a hollow structure, and a transmission assembly is movably installed inside the outer plow claw along the direction in which it extends. The top end of the outer plow claw is connected to a connecting straight pipe extending in the same direction as the outer plow claw. An adjusting screw is coaxially threadedly connected to the connecting straight pipe. The end of the adjusting screw near the outer plow claw extends into the outer plow claw and is rotatably connected to the transmission assembly.

[0007] The inner plow claw extends in the same direction as the outer plow claw and is movably installed inside the outer plow claw along the extension direction of the outer plow claw. The inner plow claw is located on the side of the transmission component away from the connecting straight pipe and is connected to the transmission component. The bottom end of the outer plow claw is provided with an opening for the inner plow claw to extend or retract.

[0008] Preferably, the transmission assembly includes a push plate and a flexible connecting rod. The push plate is movably installed inside the outer plow claw along the direction in which the outer plow claw extends. The push plate is coaxially rotatably connected to the adjusting screw rod, and the flexible connecting rod is connected between the push plate and the inner plow claw.

[0009] Preferably, a feed port connected to the inside of the outer plow claw is provided at the top of the outer peripheral wall of the outer plow claw; a material guide groove is provided at the position corresponding to the feed port on the top of the outer peripheral wall of the inner plow claw, and the material guide groove extends along the direction in which the inner plow claw extends, and a discharge port is provided at the part of the inner plow claw located outside the outer plow claw, and the discharge port is connected to the material guide groove.

[0010] Preferably, the discharge port is located on a side of the inner plow claw that is away from its traveling direction.

[0011] Preferably, the discharge port is arranged close to the plow tip of the inner plow claw.

[0012] Preferably, there are two feed ports, which are spaced apart along the direction in which the outer plow claws extend.

[0013] A plowing mechanism is also provided, comprising a connecting frame, a fixing rod and a plurality of adjustable plow claws;

[0014] One end of the connecting frame is used to connect to the traction device, and the other end is connected to the fixing rod;

[0015] The fixing rod extends horizontally in a direction perpendicular to the direction of travel;

[0016] The adjustable plow claws are arranged in sequence along the extending direction of the fixing rod and are all fixed on the fixing rod.

[0017] Preferably, the fixing rod is provided with a plurality of mounting through holes corresponding to the adjustable plow claws respectively. The mounting through holes are radially penetrated through the fixing rod and are provided on the fixing rod. The connecting straight tubes on the adjustable plow claws are detachably connected to the mounting through holes.

[0018] A plowing and fertilizing machine for improving saline-alkali land is also provided, comprising a fertilizer processing mechanism, a fertilizing mechanism and a plowing mechanism;

[0019] The fertilizing mechanism includes a feeding hopper and a plurality of feeding pipes; the feeding hopper is installed above the connecting frame of the plowing mechanism, and the feeding pipes are arranged in sequence along the extension direction of the fixed rod of the plowing mechanism, and each feeding pipe is connected between the discharge side of the feeding hopper and the corresponding feeding port;

[0020] The fertilizer processing mechanism includes a crushing mechanism and a material conveying mechanism. The crushing mechanism is arranged on the feeding side of the feeding hopper, and the material conveying mechanism is arranged between the feeding side and the discharging side of the feeding hopper.

[0021] Preferably, the fertilizer processing mechanism also includes a distribution auger and multiple feeding augers, the distribution auger extends in a direction parallel to the fixed rod and is used to push the feed toward both ends of the distribution auger, and each feeding augers extends into each feeding pipe accordingly.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] The present invention rotates the adjusting screw rod to drive the transmission component to move up and down, and transmits the stroke to the inner plow claw through the transmission component, thereby controlling the length of the inner plow claw extending out of the outer plow claw to change the plowing depth. Deep plowing in saline-alkali land can increase the fertilization depth, which can not only increase the plow layer but also promote the downward movement of water and salt, reduce surface salt, and promote the growth of the root system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 The axonometric view of a plowing and fertilizing machine for improving saline-alkali land according to an embodiment of the present invention is shown. Figure 1 ;

[0026] Figure 2 The axonometric view of a plowing and fertilizing machine for improving saline-alkali land according to an embodiment of the present invention is shown. Figure 2 ;

[0027] Figure 3 A top view of a plowing and fertilizing machine for improving saline-alkali land according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 Cross-section at AA;

[0029] Figure 5 for Figure 3 Cross-section at the middle BB;

[0030] Figure 6 This is an axonometric diagram of a fertilizer processing mechanism according to an embodiment of the present invention;

[0031] Figure 7 for Figure 5 Enlarged view of point D in the middle;

[0032] Figure 8 for Figure 7 Enlarged view of point E in the middle;

[0033] Figure 9 for Figure 4 Enlarged view of point C in the middle;

[0034] Figure 10 This is a structural diagram of a material distribution auger in one embodiment disclosed in the present invention;

[0035] Figure 11 This is a structural schematic diagram of a feeding hopper in an embodiment disclosed in the present invention;

[0036] Among them, 1-ploughing mechanism, 2-fertilizing mechanism, 3-fertilizer processing mechanism;

[0037] 101-connecting frame, 102-fixing rod, 103-outer plow claw, 104-inner plow claw, 105-nut, 106-adjusting screw, 107-flexible connecting rod, 108-shielding curtain;

[0038] 1021-mounting through hole, 1031-external threaded pipe, 1032-feed port, 1041-guide trough, 1042-discharge port, 1061-push plate, 10311-screw hole;

[0039] 201-feeding hopper, 202-feeding pipe;

[0040] 2011-crushing chamber, 2012-distributing chamber, 2013-guide plate, 2014-distributing plate, 2015-feeding hole;

[0041] 301-crushing shaft, 302-splitting auger, 303-unloading auger, 304-motor, 305-hanger, 306-drive shaft, 307-power supply;

[0042] 3011-crushing blade, 3012-first synchronous wheel, 3013-first synchronous belt, 3021-third synchronous wheel, 3022-second synchronous wheel, 3023-second synchronous belt, 3024-first spiral blade, 3025-second spiral blade, 3026-second gear, 3031-worm wheel, 3041-first gear, 3061-worm, 3062-fourth synchronous wheel. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] The purpose of the present invention is to provide an adjustable plow claw, a plowing mechanism and a plowing and fertilizing machine for saline-alkali land improvement, so as to solve the problems existing in the above-mentioned prior art and be able to be adjusted according to different landforms and plow layer depth requirements.

[0045] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] like Figures 1 to 11 As shown, the present invention provides an adjustable plow claw, including an inner plow claw 104 and an outer plow claw 103; the outer plow claw 103 is a hollow structure, and a transmission component is movably installed inside the outer plow claw 103 along the direction of its extension, and the top of the outer plow claw 103 is connected to a connecting straight pipe extending in the same direction as it, and the connecting straight pipe is coaxially threaded with an adjusting screw rod 106. Specifically, a screw hole 10311 is provided in the connecting straight pipe, and the adjusting screw rod 106 is provided with an external thread. The thread is connected to the screw hole 10311. The end of the adjusting screw rod 106 near the outer plow claw 103 extends into the outer plow claw 103 and is rotatably connected to the transmission assembly. The inner plow claw 104 extends in the same direction as the outer plow claw 103 and is movably installed in the outer plow claw 103 along the extension direction of the outer plow claw 103. The inner plow claw 104 is located on the side of the transmission assembly away from the connecting straight pipe and is connected to the transmission assembly. The bottom end of the outer plow claw 103 is provided with an opening for the inner plow claw 104 to extend or retract. The present invention rotates the adjusting screw rod 106 to drive the transmission assembly up and down, and transmits the stroke to the inner plow claw 104 through the transmission assembly, thereby controlling the length of the inner plow claw 104 extending from the outer plow claw 103 to change the plowing depth. Deep plowing in saline-alkali land can increase the depth of fertilization, not only increasing the tillage layer but also promoting the downward movement of water and salt, reducing surface salt, and promoting root growth.

[0047] In this embodiment, the transmission assembly includes a push plate 1061 and a flexible connecting rod 107. The push plate 1061 is movably mounted within the outer plow claw 103 along its extension direction. The push plate 1061 is coaxially rotatably connected to the adjustment screw 106. The flexible connecting rod 107 is connected between the push plate 1061 and the inner plow claw 104. Rotating the adjustment screw 106 causes the push plate 1061 to move up and down, and the travel is then transmitted to the inner plow claw 104 via the flexible connecting rod 107, thereby controlling the extension length of the inner plow claw 104. Preferably, the flexible connecting rod 107 is made of polyurethane (PU) or hard rubber. This flexible connecting rod made of PU or rubber has sufficient support strength and a certain degree of elasticity to adapt to the curved shape of the outer plow claw 103. It also has good wear resistance and a long service life.

[0048] Preferably, to prevent the transmission assembly from synchronously rotating under the rotation of the adjustment screw 106, a limiting guide rail is provided between the transmission assembly and the inner wall of the outer plow claw 103, so that the transmission assembly can be movably mounted on the limiting guide rail, and the limiting guide rail is used to limit the transmission assembly to prevent rotation. The limiting guide rail can adopt a slide groove structure and be provided on the inner wall of the outer plow claw 103. The transmission assembly is provided with a slider that slides along the slide groove structure. Specifically, when the transmission assembly includes a push plate 1061 and a flexible link 107, the slider is provided on the push plate 1061.

[0049] In a specific embodiment, a feed port 1032 connected to the interior of the outer plow claw 103 is opened at the top of the outer peripheral wall of the outer plow claw 103, and the feed port 1032 is used to pass through the bottom of the feeding pipe 202; a material guide groove 1041 is opened at the top of the outer peripheral wall of the inner plow claw 104 corresponding to the position of the feed port 1032, and the material guide groove 1041 extends along the extension direction of the inner plow claw 104, and a discharge port 1042 is opened on the part of the inner plow claw 104 located outside the outer plow claw 103, and the discharge port 1042 is connected to the material guide groove 1041. When the present invention is specifically applied to plowing, fertilizer in the hopper 201 associated with the adjustable plow claw is delivered to the feed port 1032 via the feed pipe 202 and enters the outer plow claw 103. The fertilizer falling from the feed pipe 202 is guided by the guide trough 1041 and ultimately discharged from the discharge port 1042, thereby enabling the fertilizer to automatically fall into the plow furrow while the adjustable plow claw is plowing. Preferably, the top of the inner plow claw 104 is a sloped structure. Even if too much fertilizer enters the outer plow claw 103 and accumulates at the top position of the inner plow claw 104, it can slide down the sloped top structure of the inner plow claw 104 into the guide trough 1041.

[0050] In this embodiment, the discharge port 1042 is located on a side of the inner plow claw 104 that is away from the moving direction thereof, so as to prevent the discharge port 1042 from being blocked by soil when plowing.

[0051] In this embodiment, the discharge port 1042 is arranged close to the plow tip of the inner plow claw 104, that is, the discharge port 1042 is close to the bottom of the back of the inner plow claw 104, and can directly reach the bottom of the plow furrow, thereby increasing the fertilization depth.

[0052] In this embodiment, two feed ports 1032 are provided and are spaced apart along the direction in which the outer plow claw 103 extends. In actual use, the feed ports 1032 are respectively connected to the feeding pipes 202, and the feed ports 1032 are fed with fertilizer through the feeding pipes 202, thereby avoiding cessation of fertilization due to blockage of a single pipe and improving the stability of fertilizer supply.

[0053] In this embodiment, a shielding curtain 108 is fixedly mounted at the bottom opening of the outer plow claw 103 and is in sliding contact with the top of the outer peripheral wall of the inner plow claw 104. The shielding curtain 108 prevents soil from flowing back into the gap between the outer plow claw 103 and the inner plow claw 104. It also effectively prevents fertilizer from leaking through the gap, which could cause surface fertilization, affect fertilizer penetration, and reduce crop yields. Preferably, the shielding curtain 108 is made of silicone, which is weather-resistant and soft, ensuring a consistent fit with the inner plow claw 104.

[0054] Furthermore, a plowing mechanism 1 is provided, comprising a connecting frame 101, a fixed rod 102, and a plurality of adjustable plow claws; one end of the connecting frame 101 is connected to a traction device, and the other end is connected to the fixed rod 102; the fixed rod 102 extends horizontally perpendicular to the direction of travel; the adjustable plow claws are arranged in sequence along the extension direction of the fixed rod 102 and are all fixed to the fixed rod 102. Specifically, the fixed rod 102 is fixedly mounted on the bottom of the connecting frame 101, the outer plow claws 103 are fixedly mounted on the lower end surface of the fixed rod 102, and the inner plow claws 104 are movably mounted within the outer plow claws 103.

[0055] Among them, the adjustable plow claw includes an outer plow claw 103, an inner plow claw 104 and a connecting straight tube; in a specific embodiment, the adjustable plow claw can be fixed to the fixed rod 102 through the outer plow claw 103, for example, the outer plow claw 103 and the fixed rod 102 can be connected by welding, and the outer plow claw 103 and the fixed rod 102 can also be connected by a snap connection; in another specific embodiment, the adjustable plow claw can also be fixed to the fixed rod 102 by a connecting straight tube, for example, the connection between the connecting straight tube and the fixed rod 102 can be completed by welding, and the connection between the connecting straight tube and the fixed rod 102 can also be completed by a snap connection.

[0056] In a specific embodiment, in order to facilitate the replacement of the adjustable plow claws, a plurality of mounting through holes 1021 corresponding to each adjustable plow claw are provided on the fixed rod 102. The mounting through holes 1021 are radially penetrated through the fixed rod 102. The connecting straight pipes on the adjustable plow claws can be detachably connected to the mounting through holes 1021. When facing different working conditions, the replacement of the adjustable plow claws can be completed by disassembling and assembling the connecting straight pipes of different adjustable plow claws and the mounting through holes 1021.

[0057] In this embodiment, as a preference, the connecting straight pipe is an externally threaded pipe 1031 connected to the top of the external plow claw 103, a nut 105 is installed on the fixed rod 102, the nut 105 is coaxially connected to the mounting through hole 1021, the connecting straight pipe passes through the mounting through hole 1021 and the nut 105, and is threadedly connected to the nut 105 through the external thread of the connecting straight pipe, thereby completing the installation of the adjustable plow claw and the fixed rod 102. In this embodiment, as another preferred embodiment, the mounting through hole 1021 extends vertically, and the nut 105 is arranged at the top position of the mounting through hole 1021. After the connecting straight pipe passes through the mounting through hole 1021 from bottom to top, it is threadedly connected to the nut 105 through its external thread, and the structure of the outer plow claw 103 is larger than the mounting through hole 1021. Therefore, when the connecting straight pipe passes through the mounting through hole 1021 and is threadedly connected to the nut 105, the outer plow claw 103 can be pressed against the bottom end position of the mounting through hole 1021, thereby ensuring the stability of the outer plow claw 103 during operation.

[0058] Furthermore, a plowing and fertilizing machine for improving soil in saline-alkali land is provided, especially for uniform fertilization of muddy coastal saline-alkali land, comprising a fertilizer processing mechanism 3, a fertilizing mechanism 2 and a plowing mechanism 1; the fertilizing mechanism 2 comprises a feeding hopper 201 and a plurality of feeding pipes 202; the feeding hopper 201 is installed above the connecting frame 101 of the plowing mechanism 1, and the feeding pipes 202 are arranged in sequence along the extension direction of the fixed rod 102 of the plowing mechanism 1, and the feeding pipes 202 are connected between the discharge side of the feeding hopper 201 and the corresponding feed port 1032, so as to feed the fertilizer in the feeding hopper 201 to the outer plow claw 103 through the feeding pipe 202; the fertilizer processing mechanism 3 comprises a crushing mechanism and a feeding mechanism, the crushing mechanism is arranged on the feed side of the feeding hopper 201, and the feeding mechanism is arranged between the feed side and the discharge side of the feeding hopper 201. The present invention is driven forward by a traction device to carry out deep plowing of saline-alkali land. During the plowing process, the fertilizing mechanism 2 fertilizes the deep soil after plowing, and the fertilizer is pre-processed by the crushing mechanism, that is, the large fertilizer blocks just put into the feeding hopper 201 are crushed to prevent the large fertilizer blocks from clogging the feeding pipe 202. At the same time, it avoids the problem of uneven fertilization caused by large fertilizer blocks and affecting soil fertility. At the same time, the fertilizer supply of each adjustable plow claw is stable and uniform through the feeding mechanism.

[0059] In this embodiment, the fixed rod 102 is fixedly mounted on the bottom of the connecting frame 101, the top of the connecting frame 101 is connected to the traction device, the feed side of the hopper 201 is connected to the middle position of the connecting frame 101 by a first support rod, and the discharge side of the hopper 201 is connected to the fixed rod 102, so that the hopper 201 is supported at the upper position of the connecting frame 101 by the first support rod and the second support rod, and the position is kept fixed. Preferably, two groups of first support rods are provided, and are spaced apart along a direction perpendicular to the direction of travel, one end of the two first support rods are both mounted on the feed side of the hopper 201, and the other end are both mounted on the middle position of the connecting frame 101; preferably, two groups of second support rods are provided, and are spaced apart along a direction perpendicular to the direction of travel, one end of the two second support rods are both mounted on the discharge side of the hopper 201, and the other end are both mounted on the fixed rod 102.

[0060] In this embodiment, the crushing mechanism includes a crushing shaft 301 located on the feed side of the feeding hopper 201. The crushing shaft 301 extends perpendicular to the direction of travel, and both ends of the crushing shaft 301 are rotatably connected to the inner wall of the feeding hopper 201. The outer peripheral surface of the crushing shaft 301 is evenly provided with crushing blades 3011, and the agglomerated fertilizer is crushed into small pieces by the crushing blades 3011.

[0061] In this embodiment, the conveying mechanism can be a conveying auger disposed between the feed side and the discharge side of the hopper 201, so that the fertilizer is conveyed from the feed side of the hopper 201 to the discharge side of the hopper 201 by the conveying auger. The conveying mechanism can also be a guide plate 2013 disposed between the feed side and the discharge side of the hopper 201. The guide plate 2013 gradually tilts downward from the feed side to the discharge side of the hopper 201, so that the fertilizer in the hopper 201 is guided from the feed side to the discharge side by the guide plate 2013, thereby preventing fertilizer from remaining in the hopper 201 and causing waste.

[0062] In a specific embodiment, the fertilizer processing mechanism 3 also includes a dividing auger 302 and multiple feeding augers 303. The dividing auger 302 extends in a direction parallel to the fixed rod 102 and is used to push the feed toward the two ends of the dividing auger 302. Each feeding augers 303 extends into each feeding pipe 202 accordingly. The central fertilizer is pushed to both sides by the dividing auger 302 to avoid insufficient fertilizer supply at the edge position of the discharge side of the hopper 201, thereby improving the uniformity of fertilization. The fertilizer is assisted by the feeding augers 303. When the discharge port 1042 or the feeding pipe 202 is blocked, the blockage can also be pushed out with the help of the feeding augers 303, thereby ensuring the stability of fertilization.

[0063] In this embodiment, the dividing auger 302 includes a dividing auger 302 rod, which extends in a direction parallel to the fixed rod 102, and its two ends are respectively rotatably connected to the inner wall surface of the feeding hopper 201. The dividing auger 302 rod is provided with a mirror-symmetrical first spiral blade 3024 and a second spiral blade 3025 along the direction of its extension. The mirror-symmetrical first spiral blade 3024 and the second spiral blade 3025 enable the dividing auger 302 to push the fertilizer in the center to both sides, avoiding the accumulation of fertilizer in the center and avoiding insufficient fertilizer supply at the edge position of the discharge side of the feeding hopper 201.

[0064] In this embodiment, a plurality of discharge holes 2015 are provided at the bottom of the discharge side of the feeding hopper 201, which are connected to the feed pipes 202 respectively. The discharge holes 2015 are arranged in sequence perpendicular to the direction of travel. The discharge auger 303 extends in the vertical direction and passes through the discharge holes 2015 and then extends into the top position of the feed pipe 202 to realize the feeding operation. Preferably, a hanger 305 is provided above the discharge side of the feeding bin, and the top of the discharge auger 303 is installed on the hanger. 305 and is rotatably connected to the hanger 305, the bottom end of the unloading auger 303 passes through the unloading hole 2015 and extends into the top position of the feed pipe 202, and the top position of the corresponding feed pipe 202 is a straight tube structure coaxial with the unloading auger 303; as a preference, a dividing plate 2014 is provided between each adjacent unloading hole 2015, and each unloading hole 2015 is separated by the dividing plate 2014, thereby increasing the thrust of the unloading auger 303 on the fertilizer and improving the discharge effect.

[0065] In this embodiment, the feeding hopper 201 is divided into a crushing chamber 2011 and a distribution chamber 2012. The crushing chamber 2011 is connected to the upper side of the distribution chamber 2012 and serves as the feeding side of the feeding hopper 201. The other side of the distribution chamber 2012 opposite to the crushing chamber 2011 serves as the discharging side of the feeding hopper 201, and a discharge hole 2015 is opened at the bottom thereof. A distribution plate 2014 is installed on the bottom wall of the distribution chamber 2012 to separate the discharge holes 2015. The crushing mechanism is arranged in the crushing chamber 2011; the material feeding mechanism is arranged in the distribution chamber 2012. For example, when the material feeding mechanism adopts a guide plate 2013, the guide plate 2013 is installed on the inner bottom wall of the distribution chamber 2012, and gradually tilts downward from the dropout port of the crushing chamber 2011 to the discharge hole 2015; the distribution auger 302 is installed in the distribution chamber 2012; a hanger 305 is provided at the upper position of the distribution chamber 2012 corresponding to the discharge hole 2015.

[0066] In a specific embodiment, the fertilizer processing mechanism 3 further includes a motor 304 and a power supply 307, the motor 304 and the power supply 307 are fixedly mounted on the lower end surface of the feeding hopper 201, the output shaft of the motor 304 is provided with a first gear 3041, the material distribution screw dragon 302 is provided with a second gear 3026 meshing with the first gear 3041, the material distribution screw dragon 302 is provided with a second synchronous wheel 3022 and a third synchronous wheel 3021, and the crushing shaft 301 is provided with a first synchronous wheel 301 cooperating with the second synchronous wheel 3022. 2. The first synchronous wheel 3012 and the second synchronous wheel 3022 are provided with a first synchronous belt 3013 for transmission. The hanger 305 is provided with a transmission shaft 306 for rotation connection. The transmission shaft 306 is provided with a fourth synchronous wheel 3062 that cooperates with the third synchronous wheel 3021. The third synchronous wheel 3021 and the fourth synchronous wheel 3062 are provided with a second synchronous belt 3023 for transmission. A worm 3061 is provided on the transmission shaft 306. The unloading auger 303 is provided with a worm wheel 3031 that cooperates with the worm 3061.

[0067] The motor 304 drives the distribution auger 302 to rotate through the cooperation of the first gear 3041 and the second gear 3026, and drives the crushing shaft 301 to rotate through the cooperation of the first synchronous wheel 3012, the second synchronous wheel 3022 and the first synchronous belt 3013, and drives the transmission shaft 306 to rotate through the cooperation of the third synchronous wheel 3021, the fourth synchronous wheel 3062 and the second synchronous belt 3023. The transmission shaft 306 drives the unloading auger 303 to rotate through the cooperation of the worm wheel 3031 and the worm 3061, thereby realizing that the motor 304 drives the entire fertilizer processing mechanism 3.

[0068] Furthermore, when the device is in use, it is first connected to the traction equipment, and the traction equipment drives the connecting frame 101 and the fixed rod 102 fixed to the bottom of the connecting frame 101 to move forward, and the outer plow claw 103 on the lower end surface of the fixed rod 102 and the inner plow claw 104 movably installed therein deeply plow the saline-alkali land. During the plowing process, the fertilizer in the feeding hopper 201 begins to play a role, and the fertilizer first enters the crushing chamber 2011 of the feeding hopper 201. The crushing shaft 301 installed in the crushing chamber 2011 and rotatably connected to the feeding hopper 201 starts to rotate under the transmission action of the motor 304 through a series of gears, synchronous wheels and synchronous belts. The crushing blades 3011 evenly arranged on the crushing shaft 301 will crush the fertilizer just fed into the crushing chamber 2011. The large pieces of fertilizer that enter are crushed to prevent them from clogging the pipeline and causing uneven fertilization. Subsequently, the fertilizer enters the distribution chamber 2012, and the distribution auger 302 connected to the distribution chamber 2012 is also rotated under the drive of the motor 304. Its mirror-symmetrical first spiral blade 3024 and second spiral blade 3025 push the fertilizer to both sides to prevent the fertilizer from piling up in the center and insufficient feeding of the edge discharge holes 2015. The downwardly inclined guide plate 2013 at the bottom of the distribution chamber 2012 guides the fertilizer to the discharge hole 2015. The distribution plate 2014 separates each discharge hole 2015 to improve the discharge effect. The discharge auger 303 is installed on the hanger 305. The motor 304 is connected to the distribution chamber 2012 through the transmission shaft 306 and the worm gear 3031. The worm 3061 drives the fertilizer to assist. When the discharge port 1042 or the feed pipe 202 is blocked, the blockage is pushed out. The fertilizer enters the feed pipe 202 through the discharge hole 2015. The top of the feed pipe 202 is connected with the discharge hole 2015, and the bottom is connected with the outer plow claw 103. The outer plow claw 103 is a hollow structure. The top passes through the mounting hole 1021 on the fixed rod 102 through the external threaded tube 1031 and is fixed with a nut 105. There are two feeding ports 1032 on its upper end face that are connected with the bottom of the feed pipe 202 to ensure a stable supply of fertilizer. Even if a single tube is blocked, it will not affect fertilization. After the fertilizer enters the outer plow claw 103, part of it passes through the guide groove 104 on the upper end face of the inner plow claw 104. 1 is guided and discharged from the bottom discharge port 1042 directly to the bottom of the furrow to increase the fertilization depth. When adjusting the plowing depth, the adjusting screw 106 in the top screw hole 10311 in the external threaded tube 1031 is rotated. The adjusting screw 106 drives the push plate 1061 connected to the bottom rotation to move up and down, and then transmits the stroke to the inner plow claw 104 through the flexible connecting rod 107 to control the extension length of the inner plow claw 104. The shielding curtain 108 fixedly installed on the inner end surface of the outer plow claw 103 can prevent soil from flowing back into the gap between the outer plow claw 103 and the inner plow claw 104, and at the same time prevent fertilizer leakage from causing surface fertilization, ensuring that the equipment can stably and evenly perform plowing and fertilizing work in muddy coastal saline-alkali land, promoting soil improvement and crop growth.

[0069] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0070] It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0071] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. An adjustable plow claw, characterized in that: Including inner plow claws and outer plow claws; The outer plow claw is a hollow structure, and a transmission assembly is movably installed inside the outer plow claw along the direction in which it extends. The top end of the outer plow claw is connected to a connecting straight pipe extending in the same direction as the outer plow claw. An adjusting screw is coaxially threadedly connected to the connecting straight pipe. The end of the adjusting screw near the outer plow claw extends into the outer plow claw and is rotatably connected to the transmission assembly. The inner plow claw extends in the same direction as the outer plow claw and is movably mounted inside the outer plow claw along the extension direction of the outer plow claw. The inner plow claw is located on a side of the transmission assembly away from the connecting straight pipe and is connected to the transmission assembly. An opening is formed at the bottom end of the outer plow claw for extending or retracting the inner plow claw. A feed port connected to the interior of the outer plow claw is provided at the top of the outer peripheral wall of the outer plow claw; a material guide groove is provided at the top of the outer peripheral wall of the inner plow claw corresponding to the position of the feed port, and the material guide groove extends along the direction in which the inner plow claw extends, and a discharge port is provided at the part of the inner plow claw located outside the outer plow claw, and the discharge port is connected to the material guide groove.

2. The adjustable plow claw according to claim 1, characterized in that The transmission assembly includes a push plate and a flexible connecting rod. The push plate is movably installed inside the outer plow claw along the direction in which the outer plow claw extends. The push plate is coaxially rotatably connected to the adjusting screw rod. The flexible connecting rod is connected between the push plate and the inner plow claw.

3. The adjustable plow claw according to claim 1, characterized in that The discharge port is located on a side of the inner plow claw that is away from the traveling direction of the inner plow claw.

4. The adjustable plow claw according to claim 1, characterized in that The discharge port is arranged close to the plow tip of the inner plow claw.

5. The adjustable plow claw according to claim 1, characterized in that: There are two feed openings, which are spaced apart along the extending direction of the outer plow claws.

6. A plowing mechanism, characterized in that: It comprises a connecting frame, a fixing rod and a plurality of adjustable plow claws according to any one of claims 1 to 5; One end of the connecting frame is used to connect to the traction device, and the other end is connected to the fixing rod; The fixing rod extends horizontally in a direction perpendicular to the direction of travel; The adjustable plow claws are arranged in sequence along the extending direction of the fixing rod and are all fixed on the fixing rod.

7. The plowing mechanism according to claim 6, characterized in that: The fixing rod is provided with a plurality of mounting through holes corresponding to the adjustable plow claws respectively. The mounting through holes are radially penetrated through the fixing rod and are arranged on the fixing rod. The connecting straight pipes on the adjustable plow claws are detachably connected to the mounting through holes.

8. A plowing and fertilizing machine for improving saline-alkali land, characterized in that: It comprises a fertilizer processing mechanism, a fertilizer application mechanism and a plowing mechanism as claimed in claim 6 or 7; The fertilizing mechanism includes a feeding hopper and a plurality of feeding pipes; the feeding hopper is installed above the connecting frame of the plowing mechanism, and the feeding pipes are arranged in sequence along the extension direction of the fixed rod of the plowing mechanism, and each feeding pipe is connected between the discharge side of the feeding hopper and the corresponding feeding port; The fertilizer processing mechanism includes a crushing mechanism and a material conveying mechanism. The crushing mechanism is arranged on the feeding side of the feeding hopper, and the material conveying mechanism is arranged between the feeding side and the discharging side of the feeding hopper.

9. The plowing and fertilizing machine for improving saline-alkali land according to claim 8, characterized in that: The fertilizer processing mechanism also includes a distribution auger and multiple feeding augers. The distribution auger extends in a direction parallel to the fixed rod and is used to push the feed toward the two ends of the distribution auger. Each feeding augers extends into each feeding pipe accordingly.

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