Agricultural saline-alkali land remediation device

Abstract

The invention relates to the technical field of saline-alkali land remediation, in particular to an agricultural saline-alkali land remediation device which comprises a connecting frame, a hook connected with an agricultural vehicle is arranged outside the connecting frame, and a plurality of crushing cutters for cutting caked soil are arranged below the connecting frame. A plurality of furrow openers for ridging the land are further arranged on the side, away from the hook, of the connecting frame, and a ground breaking and repairing mechanism for driving the crushing cutters and the furrow openers to ascend and descend is further arranged above the connecting frame. Through cooperation of structures such as a crushing cutter, a ground breaking and repairing mechanism, a motor, an eccentric disc, a lifting frame, a limiting frame and a lifting plate, the crushing cutter firstly moves downwards to cut caked soil, then the crushing cutter is driven to rotate, the cut caked soil is further crushed, the tedious link of soil carrying in a traditional device is omitted, and the working efficiency is improved. And the remediation period of a single land is effectively shortened, so that the propelling efficiency of the whole soil remediation project is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of saline-alkali land remediation technology, and in particular to an agricultural saline-alkali land remediation device. Background Technology

[0002] Saline-alkali land is a type of salt accumulation, referring to soil where the salt content affects the normal growth of crops. The formation of alkaline soil and alkalized soil is mostly related to the accumulation of carbonates in the soil, resulting in generally high alkalinity. In severely saline-alkali soil areas, plants can hardly survive. In order to restore saline-alkali land and promote soil ecological balance, the clumps of soil are usually broken up before subsequent restoration treatment.

[0003] Existing saline-alkali soil remediation devices can first cut the compacted soil, then transport the cut pieces from the field to a crushing box by hand or machinery, crush the soil in the crushing box, and then transport the crushed soil back to the field for spreading. This multiple transportation process not only increases the number of work steps but also prolongs the remediation cycle of a single plot of land. For the remediation of large areas of saline-alkali land, this can easily lead to delays in the overall project progress. Therefore, we propose an agricultural saline-alkali soil remediation device. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides an agricultural saline-alkali land remediation device.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] An agricultural saline-alkali land remediation device includes a connecting frame. The connecting frame has hooks on its exterior for connecting to agricultural machinery. Below the connecting frame are several shredders for cutting clumps of soil. On the side of the connecting frame away from the hooks are several furrow openers for ridging the land. Above the connecting frame is a soil-breaking and remediation mechanism that drives the shredders and furrow openers to rise and fall. The soil-breaking and remediation mechanism includes two support rods fixed to the top of the connecting frame, a lifting frame between the two support rods, an eccentric disc inside the lifting frame, and a motor fixed to the side of the eccentric disc closest to the connecting frame to drive its rotation. Between the lifting frame and the shredders is a soil-breaking mechanism that drives the shredders to rise and fall. Between the lifting frame and the furrow openers is a furrow-deep tillage mechanism that drives the furrow openers to swing.

[0007] As a preferred embodiment of the present invention, the soil-breaking mechanism includes a limiting frame sleeved on the outside of an eccentric disc, a sliding groove inside the lifting frame to facilitate the sliding of the limiting frame, and the output shaft of the motor eccentrically fixed on the side of the eccentric disc near the connecting frame. A lifting plate is also provided between the two support rods, and a connecting rope is provided between the lifting plate and the lifting frame. The lower half of the two support rods has a through groove to facilitate the lifting of the lifting plate. The lifting frame is sleeved on the outer wall of the two support rods. The bottom of the motor is fixed to the top of the connecting frame. The lifting plate is located below the lifting frame, and the breaking blade is located below the lifting plate. When it is necessary to break up clumps... When the soil is being broken up, the output shaft of the motor drives the eccentric disc to rotate eccentrically, which in turn drives the limit frame to rotate eccentrically. The limit frame is limited by the lifting frame and the slide groove, causing the limit frame to move along the inside of the slide groove. The limit frame then drives the lifting frame to reciprocate along the outer wall of the support rod. When the lifting frame moves upward, the connecting rope is released from the constraint of the lifting frame, and the lifting plate moves downward under the pull of gravity. The lifting plate drives the crushing blade to move downward, breaking up the clumps of soil. When the lifting frame moves upward, it stretches the connecting rope, which in turn drives the trencher to move upward through the lifting plate.

[0008] As a preferred embodiment of the present invention, the upper half of the support rod is further fixed with a fixed frame. Both ends of the fixed frame are rotatably mounted with pulleys to facilitate the movement of the connecting rope. The middle part of the lifting plate is provided with several sleeves connected to the trencher. The top of the sleeves contacts the bottom of the lifting frame. The pulleys can reduce the friction generated when the connecting rope moves. At the same time, the fixed frame can limit the lifting frame to prevent the lifting frame from separating from the support rod due to the large inertial force when the lifting frame rises. The sleeves limit the lifting frame to buffer the pressure generated when the lifting frame resets, and at the same time ensure that the lifting plate and the sleeves move to the designated position when they reset.

[0009] As a preferred embodiment of the present invention, a power column is also inserted inside the support rod, a connecting rod is fixed at the bottom of the power column, two sliders are fixed on the inner wall of the sleeve, and two positioning holes adapted to the two sliders are opened on the outer wall of the power column. The sliders are located in the lower half of the inner wall of the sleeve. When the lifting plate moves downward, the lifting plate drives the sleeve to move downward. The sleeve cooperates with the positioning holes through the sliders, so that the sliders drive the power column to move downward. The power column drives the crushing blade to move downward through the connecting rod, so that the crushing blade crushes the clumps of soil.

[0010] As a preferred embodiment of the present invention, the outer wall of the power column is symmetrically provided with two spiral grooves, and two reset grooves are provided between the two spiral grooves. The two positioning holes, the two spiral grooves, and the two reset grooves are connected. When the lifting plate moves downward and the bottom of the crushing blade contacts the ground, the lifting plate drives the sleeve to move downward, the sleeve drives the slider to move downward, the slider first drives the crushing blade to move downward through the power column and the connecting rod, the crushing blade contacts the ground and limits the power column, the slider moves along the inside of the spiral groove, the slider and the spiral groove cooperate to drive the power column to rotate, the power column drives the crushing blade to rotate through the connecting rod, and the clumps of soil are crushed a second time.

[0011] As a preferred embodiment of the present invention, the furrow deep tillage mechanism includes a lower pressure frame fixed to the top of the furrow opener. An extension arm is fixed to the side of the lower pressure frame away from the furrow opener. A connecting shaft is also provided between the extension arm and the lifting frame. The furrow opener is inclinedly disposed at the bottom of the lower pressure frame, and the end of the connecting shaft away from the lifting frame is rotatably connected to the end of the extension arm away from the lower pressure frame. When the lifting frame moves up and down reciprocally, the lifting frame contacts the end of the extension arm away from the lower pressure frame, causing the extension arm to rotate reciprocally around the axis of the connecting shaft. This causes the extension arm to drive the lower pressure frame to move reciprocally, and the lower pressure frame to drive the furrow opener to move reciprocally, thus causing the furrow opener to dig deeper into the furrow.

[0012] As a preferred embodiment of the present invention, a hinge block is fixed to the end of the extension arm away from the lower pressure frame, and a pressure plate is also fixed to the end of the extension arm away from the lower pressure frame. The end of the connecting shaft away from the lifting frame is rotatably connected to the hinge block. The extension arm passes through the hinge block and is fixed to the pressure plate. The extension arm is fixed to the lower half of the pressure plate. When the lifting frame moves downward, the lifting frame squeezes the pressure plate, causing the pressure plate to move downward. The pressure plate drives the extension arm to rotate around the axis of the connecting shaft, causing the extension arm to drive the trencher to move upward through the fixed frame.

[0013] As a preferred embodiment of the present invention, a main guillotine is fixed between the two support rods, a secondary guillotine is fixed to the top of the lifting frame, and a protective frame is also fixed to the top of the lifting frame. A feeding frame for feeding straw and a discharging frame for discharging straw fragments are fixed to the sides of the protective frame, respectively. The secondary guillotine is positioned below the main guillotine and inside the protective frame. When the lifting frame moves upward, it drives the secondary guillotine and the protective frame upward, causing the secondary guillotine to contact the main guillotine, thus shearing the straw.

[0014] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0015] 1. This invention, through the cooperation of structures such as a crushing blade, a soil breaking and remediation mechanism, a motor, an eccentric disc, a lifting frame, a limiting frame, and a lifting plate, enables the crushing blade to first move downward to cut the compacted soil, and then drive the crushing blade to rotate to further break up the cut compacted soil. This eliminates the cumbersome soil handling process in traditional devices, effectively shortens the remediation cycle of a single plot of land, and thus significantly improves the overall efficiency of the soil remediation project.

[0016] 2. This invention utilizes the cooperation of structures such as a lifting frame, a fixed frame, and a lifting plate to effectively limit the movement of the lifting frame by the fixed frame. This design can buffer the large inertial force generated when the lifting frame rises, thereby preventing the lifting frame from separating from the support rod and ensuring the structural stability of the device during operation.

[0017] 3. Through the cooperation of structures such as the lifting frame, lifting plate, sleeve, connecting rope and pulley, the present invention can effectively reduce the friction generated during the movement of the connecting rope, and the sleeve plays a limiting role for the lifting frame. It can not only buffer the pressure generated when the lifting frame is reset, but also ensure that the lifting plate and sleeve move accurately to the designated position during the reset process, further improving the stability and accuracy of the device operation.

[0018] 4. Through the cooperation of structures such as power column, sleeve, slider, spiral groove and reset groove, the present invention enables the power column to drive the crushing blade to achieve intermittent rotational motion, avoiding excessive disturbance and damage to the soil caused by continuous rotation of the crushing blade. While ensuring the crushing effect, it better protects the original structure of the soil, which meets the need to reduce soil disturbance in saline-alkali land remediation.

[0019] 5. This invention, through the cooperation of structures such as furrow opener, connecting shaft, pressure plate, hinge block, extension arm and lower pressure frame, avoids excessive digging of furrows or structural damage caused by continuous operation of furrow opener. While ensuring the furrow forming effect, it forms an orderly cooperation with soil breaking and other repair links.

[0020] 6. This invention achieves efficient shearing of straw through the cooperation of structures such as lifting frame, protective frame, main cutter and secondary cutter, and evenly spreads the sheared straw on the land surface. The straw mulch reduces soil moisture evaporation, inhibits salt accumulation on the surface, and replenishes soil organic matter to improve its structure. It forms an effective synergy with agricultural improvement technology in saline-alkali land remediation, and enhances the sustainability of the remediation effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the support rod of the present invention;

[0023] Figure 3This is a schematic diagram of the lifting frame of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the limiting frame of the present invention;

[0025] Figure 5 This is a schematic diagram of the eccentric disk of the present invention;

[0026] Figure 6 This is a schematic diagram of the lifting plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the fixing frame of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the sleeve of the present invention;

[0029] Figure 9 This is a schematic diagram of the power column structure of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the lower pressure frame of the present invention;

[0031] Figure 11 This is a schematic diagram of the structure of the extension arm of the present invention;

[0032] Figure 12 This is a schematic diagram of the protective frame of the present invention.

[0033] The components include: 1. Connecting frame; 2. Crusher blade; 3. Trencher; 4. Soil breaking and repair mechanism; 401. Support rod; 402. Lifting frame; 403. Limiting frame; 404. Eccentric disc; 405. Lifting plate; 406. Connecting rope; 407. Motor; 408. Fixing frame; 409. Pulley; 410. Sleeve; 411. Power column; 412. Connecting rod; 413. Slider; 414. Connecting shaft; 415. Pressure plate; 416. Hinge block; 417. Extension arm; 418. Lower pressure frame; 419. Protective frame; 420. Feed frame; 421. Discharge frame; 422. Main guillotine; 423. Secondary guillotine; 424. Reset groove; 425. Spiral groove. Detailed Implementation

[0034] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0035] Example: The present invention provides, as follows Figure 1 The device shown is an agricultural saline-alkali soil remediation device, including a connecting frame 1. The connecting frame 1 has hooks on its exterior for connecting to agricultural machinery. Below the connecting frame 1 are several breaking blades 2 for cutting clumps of soil. On the side of the connecting frame 1 away from the hooks, several furrow openers 3 for ridging the land are also provided.

[0036] As can be seen from the above, when in use, after connecting the connecting frame 1 to the agricultural vehicle, the agricultural vehicle drives the connecting frame 1 to move, and the connecting frame 1 drives the crushing blade 2 to cut the clumps of soil. At the same time, the ditch opener 3 is used to ridge the land.

[0037] refer to Figure 2 , Figure 3 and Figure 4 As shown, a soil breaking and repair mechanism 4 is also provided above the connecting frame 1 to drive the crusher 2 and the trencher 3 to rise and fall. The soil breaking and repair mechanism 4 includes two support rods 401 fixed to the top of the connecting frame 1. A lifting frame 402 is provided between the two support rods 401. An eccentric disk 404 is provided inside the lifting frame 402. A motor 407 is fixed on the side of the eccentric disk 404 near the connecting frame 1 to drive it to rotate. A soil breaking mechanism is provided between the lifting frame 402 and the crusher 2 to drive the crusher 2 to rise and fall.

[0038] refer to Figure 4 , Figure 5 and Figure 6As shown, the soil-breaking mechanism includes a limiting frame 403 fitted around the eccentric disc 404. A sliding groove is provided inside the lifting frame 402 to facilitate the sliding of the limiting frame 403. The output shaft of the motor 407 is eccentrically fixed to the side of the eccentric disc 404 near the connecting frame 1. A lifting plate 405 is also provided between the two support rods 401. A connecting rope 406 is provided between the lifting plate 405 and the lifting frame 402. The lower half of the two support rods 401 has a through groove to facilitate the lifting of the lifting plate 405. The lifting frame 402 is fitted around the outer wall of the two support rods 401. The bottom of the motor 407 is fixed to the top of the connecting frame 1. The lifting plate 405 is located below the lifting frame 402, and the breaking blade 2 is located below the lifting plate 405. When it is necessary to break up clumps of soil... During crushing, the output shaft of motor 407 drives eccentric disk 404 to rotate eccentrically, which in turn drives limit frame 403 to rotate eccentrically. Limit frame 403 is restricted by lifting frame 402 and slide groove, causing limit frame 403 to move along the inside of slide groove. Limit frame 403 drives lifting frame 402 to reciprocate along the outer wall of support rod 401. When lifting frame 402 moves upward, connecting rope 406 is released from the constraint of lifting frame 402, and lifting plate 405 moves downward under gravity. Lifting plate 405 drives crushing blade 2 to move downward, crushing the clumps of soil. When lifting frame 402 moves upward, it stretches connecting rope 406, which drives trencher 3 to move upward through lifting plate 405.

[0039] refer to Figure 5 , Figure 6 and Figure 7 As shown, the upper half of the support rod 401 is also fixed with a fixed frame 408. Both ends of the fixed frame 408 are rotatably mounted with pulleys 409 to facilitate the movement of the connecting rope 406. The middle part of the lifting plate 405 is provided with several sleeves 410 connected to the trencher 3. The top of the sleeve 410 contacts the bottom of the lifting frame 402. The pulleys 409 can reduce the friction generated when the connecting rope 406 moves. At the same time, the fixed frame 408 can limit the lifting frame 402 to prevent the lifting frame 402 from being separated from the support rod 401 due to the large inertial force when the lifting frame 402 rises. The sleeves 410 limit the lifting frame 402 to buffer the pressure generated when the lifting frame 402 resets, and at the same time ensure that the lifting plate 405 and the sleeves 410 move to the designated position when they reset.

[0040] refer to Figure 7 , Figure 8 and Figure 9As shown, a power column 411 is also inserted inside the support rod 401. A connecting rod 412 is fixed to the bottom of the power column 411. Two sliders 413 are also fixed to the inner wall of the sleeve 410. Two positioning holes that match the two sliders 413 are also opened on the outer wall of the power column 411. The sliders 413 are set in the lower half of the inner wall of the sleeve 410. When the lifting plate 405 moves downward, the lifting plate 405 drives the sleeve 410 to move downward. The sleeve 410 cooperates with the positioning holes through the sliders 413, so that the sliders 413 drive the power column 411 to move downward. The power column 411 drives the crushing blade 2 to move downward through the connecting rod 412, so that the crushing blade 2 crushes the clumps of soil.

[0041] refer to Figure 8 and Figure 9 As shown, the outer wall of the power column 411 is also symmetrically provided with two spiral grooves 425, and two reset grooves 424 are provided between the two spiral grooves 425. The two positioning holes, the two spiral grooves 425 and the two reset grooves 424 are connected. When the lifting plate 405 moves downward and the bottom of the crusher 2 contacts the ground, the lifting plate 405 drives the sleeve 410 to move downward. The sleeve 410 drives the slider 413 to move downward. The slider 413 first drives the crusher 2 to move downward through the power column 411 and the connecting rod 412. The crusher 2 contacts the ground and limits the power column 411. The slider 413 moves along the inside of the spiral groove 425. The slider 413 cooperates with the spiral groove 425 to drive the power column 411 to rotate. The power column 411 drives the crusher 2 to rotate through the connecting rod 412 to perform secondary crushing of the clumped soil.

[0042] The output shaft of motor 407 drives eccentric disk 404 to rotate eccentrically. Eccentric disk 404 drives limit frame 403 to rotate eccentrically. Limit frame 403 is limited by lifting frame 402 and slide groove, causing limit frame 403 to move along the inside of slide groove. Limit frame 403 drives lifting frame 402 to reciprocate along the outer wall of support rod 401. When lifting frame 402 moves upward, connecting rope 406 is released from the constraint of lifting frame 402. Lifting plate 405 moves downward under gravity. Lifting plate 405 drives sleeve 410 to move downward. Sleeve 410 engages with positioning hole through slider 413, causing slider 413 to drive power column 411 to move downward. Power column 411 drives crusher 2 through connecting rod 412. The blade 2 moves downwards to break up the clumps of soil. Simultaneously, the lifting plate 405 moves downwards, and when the bottom of the blade 2 contacts the ground, the lifting plate 405 drives the sleeve 410 downwards. The sleeve 410 then drives the slider 413 downwards. The slider 413 first drives the blade 2 downwards via the power column 411 and connecting rod 412. When the blade 2 contacts the ground, it limits the movement of the power column 411. The slider 413 then moves along the interior of the secondary guillotine 423. The slider 413 and the secondary guillotine 423 work together to rotate the power column 411. The power column 411, through the connecting rod 412, drives the blade 2 to rotate, thus performing secondary breaking up of the clumps of soil.

[0043] refer to Figure 10 and Figure 11 As shown, a furrow deep tillage mechanism is also provided between the lifting frame 402 and the furrow opener 3 to drive the furrow opener 3 to swing. The furrow deep tillage mechanism includes a lower pressure frame 418 fixed on the top of the furrow opener 3. An extension arm 417 is fixed on the side of the lower pressure frame 418 away from the furrow opener 3. A connecting shaft 414 is also provided between the extension arm 417 and the lifting frame 402. The furrow opener 3 is inclinedly set at the bottom of the lower pressure frame 418, and the end of the connecting shaft 414 away from the lifting frame 402 is rotatably connected to the end of the extension arm 417 away from the lower pressure frame 418. When the lifting frame 402 moves up and down, the lifting frame 402 and the end of the extension arm 417 away from the lower pressure frame 418 come into contact, causing the extension arm 417 to rotate back and forth around the axis of the connecting shaft 414. This causes the extension arm 417 to drive the lower pressure frame 418 to move back and forth, and the lower pressure frame 418 to drive the furrow opener 3 to move back and forth, so that the furrow opener 3 digs deeper into the furrow.

[0044] refer to Figure 10 and Figure 11As shown, a hinge block 416 is fixed to one end of the extension arm 417 away from the lower pressure frame 418, and a pressure plate 415 is also fixed to the extension arm 417 away from the lower pressure frame 418. The end of the connecting shaft 414 away from the lifting frame 402 is rotatably connected to the hinge block 416. The extension arm 417 passes through the hinge block 416 and is fixed to the pressure plate 415. The extension arm 417 is fixed to the lower half of the pressure plate 415. When the lifting frame 402 moves downward, the lifting frame 402 squeezes the pressure plate 415, causing the pressure plate 415 to move downward. The pressure plate 415 drives the extension arm 417 to rotate around the axis of the connecting shaft 414, so that the extension arm 417 drives the trencher 3 to move upward through the fixed frame 408.

[0045] refer to Figure 12 As shown, a main guillotine 422 is fixed between the two support rods 401, a secondary guillotine 423 is fixed to the top of the lifting frame 402, and a protective frame 419 is also fixed to the top of the lifting frame 402. A feeding frame 420 for feeding straw and a discharging frame 421 for discharging straw fragments are fixed to the two sides of the protective frame 419, respectively. The secondary guillotine 423 is located below the main guillotine 422 and inside the protective frame 419. When the lifting frame 402 moves upward, the lifting frame 402 drives the secondary guillotine 423 and the protective frame 419 to move upward, so that the secondary guillotine 423 and the main guillotine 422 come into contact, and the main guillotine 422 and the secondary guillotine 423 cut the straw.

[0046] When the lifting frame 402 moves downward, it presses the pressure plate 415, causing the pressure plate 415 to move downward. The pressure plate 415 contacts the end of the extension arm 417 away from the lower pressure frame 418, causing the extension arm 417 to drive the hinge block 416 to rotate around the axis of the connecting shaft 414. This causes the extension arm 417 to drive the furrow opener 3 to move upward through the fixed frame 408, and to dig deeper into the furrow through the inertial force generated when the furrow opener 3 descends.

[0047] Working principle:

[0048] The output shaft of motor 407 drives eccentric disk 404 to rotate eccentrically. Eccentric disk 404 drives limit frame 403 to rotate eccentrically. Limit frame 403 is limited by lifting frame 402 and slide groove, causing limit frame 403 to move along the inside of slide groove. Limit frame 403 drives lifting frame 402 to reciprocate along the outer wall of support rod 401. When lifting frame 402 moves upward, connecting rope 406 is released from the constraint of lifting frame 402. Lifting plate 405 moves downward under gravity. Lifting plate 405 drives sleeve 410 to move downward. Sleeve 410 engages with positioning hole through slider 413, causing slider 413 to drive power column 411 to move downward. Power column 411 drives crusher 2 through connecting rod 412. The blade 2 moves downward to break up the clumps of soil. As the blade 2 breaks up the clumps of soil, the lifting plate 405 moves downward and the bottom of the blade 2 contacts the ground. The lifting plate 405 drives the sleeve 410 to move downward, and the sleeve 410 drives the slider 413 to move downward. The slider 413 first drives the blade 2 downward through the power column 411 and the connecting rod 412. When the blade 2 contacts the ground, it limits the power column 411. The slider 413 moves along the inside of the secondary guillotine 423. The slider 413 and the secondary guillotine 423 work together to drive the power column 411 to rotate. The power column 411 drives the blade 2 to rotate through the connecting rod 412, thus breaking up the clumps of soil a second time.

[0049] When the lifting frame 402 moves downward, it presses the pressure plate 415, causing the pressure plate 415 to move downward. The pressure plate 415 contacts the end of the extension arm 417 away from the lower pressure frame 418, causing the extension arm 417 to drive the hinge block 416 to rotate around the axis of the connecting shaft 414. This causes the extension arm 417 to drive the furrow opener 3 to move upward through the fixed frame 408, and to dig deeper into the furrow through the inertial force generated when the furrow opener 3 descends.

[0050] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An agricultural saline-alkali land remediation device, comprising a connecting frame, wherein the outside of the connecting frame is provided with hooks for connecting to agricultural machinery, and a plurality of crushing blades for cutting clumps of soil are provided below the connecting frame, and a plurality of furrow openers for ridging the land are provided on the side of the connecting frame away from the hooks, characterized in that, Above the connecting frame, there is also a soil breaking and repair mechanism that drives the crusher and furrow opener to move up and down. The soil breaking and repair mechanism includes two support rods fixed to the top of the connecting frame, and a lifting frame is set between the two support rods. An eccentric plate is set inside the lifting frame. A motor that drives the eccentric plate to rotate is fixed on the side of the eccentric plate near the connecting frame. A soil breaking mechanism that drives the crusher to move up and down is set between the lifting frame and the crusher. A furrow deep tillage mechanism that drives the furrow opener to swing is also set between the lifting frame and the furrow opener.

2. The agricultural saline-alkali land remediation device according to claim 1, characterized in that, The soil-breaking mechanism includes a limiting frame sleeved on the outside of the eccentric disc, a sliding groove inside the lifting frame to facilitate the sliding of the limiting frame, and the output shaft of the motor is eccentrically fixed on the side of the eccentric disc near the connecting frame. A lifting plate is also provided between the two support rods, and a connecting rope is provided between the lifting plate and the lifting frame. The lower half of the two support rods is provided with a through groove to facilitate the lifting of the lifting plate.

3. The agricultural saline-alkali land remediation device according to claim 2, characterized in that, The upper half of the support rod is also fixed with a fixed frame. Both ends of the fixed frame are rotatably installed with pulleys to facilitate the movement of the connecting rope. The middle of the lifting plate is provided with several sleeves connected to the trencher. The top of the sleeves is in contact with the bottom of the lifting frame.

4. The agricultural saline-alkali land remediation device according to claim 3, characterized in that, The support rod is also equipped with a power column, and a connecting rod is fixed at the bottom of the power column. Two sliders are also fixed on the inner wall of the sleeve, and two positioning holes that match the two sliders are opened on the outer wall of the power column.

5. The agricultural saline-alkali land remediation device according to claim 4, characterized in that, The outer wall of the power column is also symmetrically provided with two spiral grooves, and two reset grooves are provided between the two spiral grooves. The two positioning holes, the two spiral grooves and the two reset grooves are connected.

6. The agricultural saline-alkali land remediation device according to claim 1, characterized in that, The furrow deep tillage mechanism includes a lower pressure frame fixed to the top of the furrow opener. An extension arm is fixed to the side of the lower pressure frame away from the furrow opener. A connecting shaft is also provided between the extension arm and the lifting frame. The furrow opener is inclinedly set at the bottom of the lower pressure frame, and the end of the connecting shaft away from the lifting frame is rotatably connected to the end of the extension arm away from the lower pressure frame.

7. The agricultural saline-alkali land remediation device according to claim 6, characterized in that, The extension arm is fixed with a hinge block at one end away from the lower pressure frame, and a pressure plate is also fixed to the extension arm away from the lower pressure frame. The end of the connecting shaft away from the lifting frame is rotatably connected to the hinge block. The extension arm passes through the hinge block and is fixed to the pressure plate, and the extension arm is fixed to the lower half of the pressure plate.

8. The agricultural saline-alkali land remediation device according to claim 7, characterized in that, A main guillotine is fixed between the two support rods, a secondary guillotine is fixed to the top of the lifting frame, and a protective frame is fixed to the top of the lifting frame. A feeding frame for feeding straw and a discharging frame for discharging straw fragments are fixed to the two sides of the protective frame, respectively.

Images