Soil improvement machine for saline-alkali soil and use method

Abstract

The invention relates to the technical field of saline-alkali soil improvement, in particular to a saline-alkali soil improvement machine and a using method.The saline-alkali soil improvement machine comprises a fixing frame, four tires are installed at the lower end of the fixing frame, four air cylinders are installed at the upper end of the fixing frame, and output shafts of the four air cylinders are jointly and fixedly connected with a mounting frame; two groups of symmetrical limiting grooves are formed in the upper end of the mounting frame, the limiting grooves are designed to be L-shaped, a discharging mechanism is mounted at the upper end of the mounting frame, the discharging mechanism comprises second gears, a soil breaking mechanism is jointly mounted at the ends, close to each other, of the two second gears, and a second conveying pipe is matched with a second spring, so that soil breaking is achieved. A liquid fertilizer can be output outwards when the soil breaking cone loosens the soil, the liquid fertilizer can penetrate into the soil to be mixed, the absorption efficiency of the soil is improved, the soil is effectively broken and hardened, meanwhile, the liquid fertilizer is evenly output through rotation of a third conveying pipe, and the utilization rate of the liquid fertilizer is increased.

Description

Technical Field

[0001] The invention relates to the technical field of saline-alkali land improvement devices, and in particular to a saline-alkali land soil improvement machine and a use method thereof. Background Art

[0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. Saline-alkali soil has low organic matter content and low soil fertility. The water evaporation of saline-alkali soil is strong, which causes salt to accumulate on the surface, resulting in the hardening of the saline-alkali soil surface, that is, soil compaction.

[0003] Nowadays, when managing saline-alkali land, large-scale irrigation is carried out on the saline-alkali land to make the salt in the soil penetrate downward. However, after the saline-alkali land hardens, it is difficult for the soil to penetrate water downward, and with evaporation, the saline-alkali land consumes a lot of resources but cannot be effectively penetrated. In addition, the surface soil will be granulated after the hardened soil is broken, and the nutrition of the soil cannot be continuously maintained. In addition, saline-alkali land usually lacks vegetation coverage, and wind erosion and water erosion are prone to occur after fertilization and irrigation. For this reason, we propose a soil improvement machine for saline-alkali land and a method of use. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background technology, the present invention proposes a soil improvement machine for saline-alkali land and a use method thereof.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a soil improvement machine for saline-alkali land, comprising a fixed frame, four groups of tires are installed at the lower end of the fixed frame, four groups of cylinders are installed at the upper end of the fixed frame, the output shafts of the four groups of cylinders are commonly fixedly connected to the mounting frame, two groups of symmetrical limiting grooves are opened at the upper end of the mounting frame, and the limiting grooves are L-shaped. A feeding mechanism is installed at the upper end of the mounting frame, and the feeding mechanism includes a second gear, and a soil breaking mechanism is commonly installed at the ends of the two groups of the second gears that are close to each other.

[0006] Preferably, the unloading mechanism includes two groups of symmetrical first installation boxes, which are arranged at the upper end of the installation frame, and a motor is installed on one side of one of the two groups of first installation boxes, and the inner side of the first installation box is rotatably connected to the first gear, and the output shaft of the motor is fixedly connected to one of the two groups of first gears, and the adjacent ends of the two groups of first gears are commonly fixedly connected to the first rotating shaft, and the outer side of the first gear is meshingly connected to a rack, and the lower end of the rack is fixedly connected to the installation frame.

[0007] Preferably, two groups of symmetrical C-shaped brackets are fixedly connected to the lower end of the first installation box, the lower end of the C-shaped bracket is rotatably connected to a roller, the C-shaped bracket is slidably connected to the inner side of the limit groove, and two groups of symmetrical blocks are fixedly connected to the outer side of the C-shaped bracket.

[0008] Preferably, the adjacent sides of the two groups of the first mounting boxes are commonly fixedly connected to the second mounting box, and the adjacent sides of the two groups of the second mounting boxes are commonly fixedly connected to a feeding barrel, the inner side of the feeding barrel is rotatably connected to the first rotating shaft, a discharge port is provided on the outer side of the feeding barrel near the bottom, the inner side of the feeding barrel is rotatably connected to a mixing barrel, the outer side of the mixing barrel is fixedly connected to a filter screen, the inside of the feeding barrel outside the first rotating shaft is fixedly connected to a cross sleeve, and the outer side of the cross sleeve is slidably connected to the mixing barrel.

[0009] Preferably, a fixing ring is fixedly connected to one end of the inner wall of the discharge barrel, the other end of the fixing ring is designed with a wavy groove, one end of the cross sleeve is slidably connected to the groove of the fixing ring, and a first spring is installed at the other end of the inner wall of the discharge barrel, one end of the first spring is fixedly connected to the mixing barrel, and the other end of the first spring is fixedly connected to the first rotating shaft.

[0010] Preferably, the inner side of the second gear is fixedly connected to the first rotating shaft, the outer side of the second gear is rotatably connected to the first chain, the inner side of the first chain is rotatably connected to the third gear, one end of the third gear is rotatably connected to a mounting plate via a rotating shaft, the rear end of the mounting plate is fixedly connected to the second mounting box, and the adjacent ends of the two groups of third gears are commonly fixedly connected to a auger rod.

[0011] Preferably, the soil-breaking mechanism includes a second chain rotatably connected to the second gear, a fourth gear is rotatably connected to the inner side of the second chain, the fourth gear is rotatably connected to the inner side of the second installation box through a rotating shaft, the adjacent ends of the two groups of fourth gears are commonly fixedly connected to the second rotating shaft, the second rotating shaft is a hollow tube, and the outer side of the second rotating shaft is fixedly connected to multiple groups of symmetrical T-shaped rake rods, and the front and rear ends of the T-shaped rake rods are both provided with soil-breaking cones, one end of the second rotating shaft is rotatably connected to the output port of a pressure water pump through a hose, the input port of the pressure water pump is fixedly connected to a liquid fertilizer box, and the lower end of the liquid fertilizer box is fixedly connected to a group of first installation boxes.

[0012] Preferably, a T-shaped material delivery pipe is provided on the inner side of the T-shaped rake rod, and the lower end of the T-shaped material delivery pipe is fixedly connected to the second rotating shaft, and two groups of symmetrical second material delivery pipes are slidably connected to the inner side of the T-shaped rake rod, and the ends of the two groups of second material delivery pipes that are away from each other are fixedly connected to the breaking cone, and a feeding hole is provided on the outer side of the second material delivery pipe near one end of the T-shaped material delivery pipe, and four groups of third material delivery pipes are fixedly connected to the outer side of the second material delivery pipe near the breaking cone, and a second spring is provided on the outer side of the second material delivery pipe, and one end of the second spring is fixedly connected to the T-shaped material delivery pipe, and the other end of the second spring is fixedly connected to the third material delivery pipe.

[0013] Preferably, a ball bearing is fixedly connected below the outer feed hole of the second feed pipe, two groups of symmetrical inclined sliding grooves are opened on the inner side of the T-shaped rake rod, and the ball bearing is slidably connected to the inner side of the inclined sliding groove.

[0014] A method for using a saline-alkali land soil improver, applicable to one of the saline-alkali land soil improvers mentioned above, comprising the following steps:

[0015] S1, move the fixed frame to the designated position, start the cylinder to lower the height of the installation frame, make the auger rod and the T-shaped rake rod close to the ground, then start the motor to move the first installation box at the upper end of the installation frame, drive the third gear to rotate through the second gear and the first chain, and the third gear drives the auger rod to rotate to transport the stones in the soil to one side;

[0016] S2, the second gear drives the fourth gear to rotate through the second chain, so that the fourth gear drives the T-shaped rake rod to rotate, so that the soil-breaking cone loosens the saline-alkali land, and liquid fertilizer is output to the soil through the second and third feed pipes during loosening, so as to dilute the upper saline-alkali soil;

[0017] S3, driving the mixing barrel to rotate through the first rotating shaft to mix the biochar fertilizer inside the mixing barrel, and then aligning the filter screen with the discharge port of the lower barrel when the mixing barrel rotates, outputting the biochar fertilizer and mixing it with the soil mixed with liquid fertilizer, thereby reducing the loss of nutrients in the upper saline-alkali soil.

[0018] Compared with the prior art, the present invention provides a soil improvement machine for saline-alkali land and a method of use, which has the following beneficial effects:

[0019] 1. Through the cooperation between the second rotating shaft and the T-shaped rake rod, the hardened saline-alkali land can be broken back and forth. Through the cooperation between the second feeding pipe and the second spring, the breaking cone can output liquid fertilizer outward when loosening the soil, so that the liquid fertilizer can penetrate into the soil for mixing, thereby improving the absorption efficiency of the soil and avoiding the liquid fertilizer remaining on the hardened soil surface, so that the fertilizer cannot penetrate the soil, saving fertilizer resources, improving work efficiency, and reducing economic costs. The liquid fertilizer input into the soil can effectively neutralize the saline-alkali components in the soil, improve the air permeability and water permeability of the soil, and improve the soil structure, which is beneficial to the growth of crops. Through the cooperation between the inclined slide and the ball, the breaking cone can be inserted into the hardened soil and then rotated. While effectively crushing the hardened soil, the liquid fertilizer can be evenly output through the rotation of the third feeding pipe, thereby improving the utilization rate of the liquid fertilizer.

[0020] 2. Through the cooperation between the first rotating shaft and the mixing barrel, the biochar fertilizer can be continuously mixed. The biochar as a porous structure can be mixed with fertilizer into the soil to serve as artificial black soil, thereby improving the water storage capacity of the soil. With the cooperation between the mixing barrel and the feeding barrel, the biochar fertilizer can be continuously output to the soil below to avoid waste. Through the cooperation between the cross sleeve and the fixing ring, the mixing barrel can be rotated and shaken at the same time to avoid the accumulation of the filter screen, and the shaking can cause some impurities on the outside of the filter screen to flow into the mixing barrel, and can assist the uniform feeding of the mixing barrel to make the soil improvement more uniform. The biochar fertilizer can reduce the salinity of the soil and prevent the soil from becoming compacted. The nutrients in the soil can be effectively preserved by mixing the biochar fertilizer with the soil after fertilization to avoid the loss of nutrients in the soil.

[0021] 3. Through the cooperation between the first chain and the third gear, the auger can be made to stir the soil surface, and while assisting in crushing the soil, it can also use the characteristics of the auger to transport stones and other impurities in the soil to one side. When the auger moves back and forth, the stones and part of the soil are gradually evenly piled up, so as to form a fence around the fixed frame to surround the fertilized soil. The fence can serve as a barrier to reduce the erosion of the soil by wind and water flow, help protect the soil structure, reduce soil erosion, and improve the effect of vegetation restoration. The enclosed saline-alkali land can be managed and maintained as an independent area, which helps gardeners to carry out soil improvement, irrigation, fertilization and other work more concentratedly and effectively, thereby improving the efficiency and effect of saline-alkali soil management. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a soil improvement machine for saline-alkali land proposed by the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of the overall structure of a feeding mechanism of a soil improvement machine for saline-alkali land proposed by the present invention;

[0024] Figure 3 A schematic cross-sectional view of the partial structure of a feeding mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 1 ;

[0025] Figure 4 A schematic cross-sectional view of the partial structure of a feeding mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 2 ;

[0026] Figure 5 A schematic cross-sectional view of the partial structure of a feeding mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 3 ;

[0027] Figure 6 This is an enlarged schematic diagram of the partial structure of the feeding mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 1 ;

[0028] Figure 7 This is an enlarged schematic diagram of the partial structure of the feeding mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 2 ;

[0029] Figure 8 This is a schematic cross-sectional view of the overall structure of a soil-breaking mechanism for a saline-alkali land soil improvement machine proposed by the present invention;

[0030] Fig. 9 A schematic cross-sectional view of the soil breaking mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 1 ;

[0031] Fig.10 A schematic cross-sectional view of the soil breaking mechanism of a soil improvement machine for saline-alkali land proposed by the present invention Figure 2 ;

[0032] Fig.11 This is an enlarged schematic diagram of the partial structure of the soil breaking mechanism of a soil improvement machine for saline-alkali land proposed by the present invention.

[0033] In the figure: 1, fixed frame; 2, cylinder; 3, mounting frame; 4, unloading mechanism; 41, first mounting box; 42, motor; 43, first gear; 44, rack; 45, C-shaped bracket; 46, block; 47, second mounting box; 48, second gear; 49, unloading barrel; 410, mixing barrel; 411, first rotating shaft; 412, cross sleeve; 413, mounting plate; 414, first chain; 415, third gear; 416, twisting Dragon rod; 417, filter screen; 418, fixing ring; 419, first spring; 5, soil-breaking mechanism; 51, second chain; 52, fourth gear; 53, second rotating shaft; 54, T-shaped rake rod; 55, soil-breaking cone; 56, T-shaped feed pipe; 57, second feed pipe; 58, feed hole; 59, ball bearing; 510, third feed pipe; 511, second spring; 512, inclined slide; 6, limit groove; 7, liquid fertilizer box; 8, pressure water pump. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] See also Figure 1 - Fig.11 A soil improvement machine for saline-alkali land comprises a fixed frame 1, four groups of tires are installed at the lower end of the fixed frame 1, four groups of cylinders 2 are installed at the upper end of the fixed frame 1, the output shafts of the four groups of cylinders 2 are commonly fixedly connected with a mounting frame 3, two groups of symmetrical limiting grooves 6 are opened at the upper end of the mounting frame 3, and the limiting grooves 6 are L-shaped. A feeding mechanism 4 is installed at the upper end of the mounting frame 3, and the feeding mechanism 4 includes a second gear 48, and a soil breaking mechanism 5 is commonly installed at the ends where the two groups of second gears 48 are close to each other.

[0036] In this embodiment, the unloading mechanism 4 includes two groups of symmetrical first installation boxes 41, and the first installation boxes 41 are arranged at the upper end of the installation frame 3. A motor 42 is installed on one side of one of the two groups of first installation boxes 41. The inner side of the first installation box 41 is rotatably connected with a first gear 43. The output shaft of the motor 42 is fixedly connected to one of the two groups of first gears 43. The adjacent ends of the two groups of first gears 43 are commonly fixedly connected with a first rotating shaft 411. The outer side of the first gear 43 is meshingly connected with a rack 44, and the lower end of the rack 44 is fixedly connected to the installation frame 3.

[0037] Specifically, the first installation box 41 provides installation space for part of the structure of the unloading mechanism 4, the motor 42 provides kinetic energy for the first gear 43, the first gear 43 engages with the rack 44 to move the first installation box 41 at the upper end of the installation frame 3, and the first rotating shaft 411 provides support for the mixing barrel 410.

[0038] In this embodiment, two groups of symmetrical C-shaped brackets 45 are fixedly connected to the lower end of the first installation box 41, and the lower end of the C-shaped bracket 45 is rotatably connected to a roller. The C-shaped bracket 45 is slidingly connected to the inner side of the limit groove 6, and two groups of symmetrical blocks 46 are fixedly connected to the outer side of the C-shaped bracket 45.

[0039] Specifically, the C-shaped bracket 45 slides on the inner side of the limiting groove 6 through rollers to assist the movement of the first installation box 41 , and the clamping block 46 prevents the first installation box 41 from falling off.

[0040] In this embodiment, the adjacent sides of the two groups of first installation boxes 41 are commonly fixedly connected with the second installation box 47, and the adjacent sides of the two groups of second installation boxes 47 are commonly fixedly connected with a discharge barrel 49. The inner side of the discharge barrel 49 is rotatably connected to the first rotating shaft 411, and a discharge port is provided on the outer side of the discharge barrel 49 near the bottom. The inner side of the discharge barrel 49 is rotatably connected with a mixing barrel 410, and the outer side of the mixing barrel 410 is fixedly connected with a filter screen 417. The inner side of the discharge barrel 49 outside the first rotating shaft 411 is fixedly connected with a cross sleeve 412, and the outer side of the cross sleeve 412 is slidably connected to the mixing barrel 410.

[0041] Specifically, the second mounting box 47 provides a protective space for the partial structure of the unloading mechanism 4 and fixes the position of the unloading barrel 49. The first rotating shaft 411 drives the mixing barrel 410 to rotate through the cross sleeve 412 to continuously mix the biochar fertilizer. The filter screen 417 prevents dust or other impurities from entering the mixing barrel 410 when it is close to the ground.

[0042] In this embodiment, a fixing ring 418 is fixedly connected to one end of the inner wall of the discharge barrel 49, and the other end of the fixing ring 418 is designed with a wavy groove. One end of the cross sleeve 412 is slidably connected to the groove of the fixing ring 418. A first spring 419 is installed at the other end of the inner wall of the discharge barrel 49, and one end of the first spring 419 is fixedly connected to the mixing barrel 410, and the other end of the first spring 419 is fixedly connected to the first rotating shaft 411.

[0043] Specifically, when the cross sleeve 412 rotates, the wave-shaped groove of the fixing ring 418 generates displacement slow motion, thereby preventing the filter 417 from being blocked, and the tension of the first spring 419 assists in resetting, so that the cross sleeve 412 is always in contact with the fixing ring 418.

[0044] In this embodiment, the inner side of the second gear 48 is fixedly connected to the first rotating shaft 411, the outer side of the second gear 48 is rotatably connected to the first chain 414, the inner side of the first chain 414 is rotatably connected to the third gear 415, one end of the third gear 415 is rotatably connected to the mounting plate 413 via the rotating shaft, the rear end of the mounting plate 413 is fixedly connected to the second mounting box 47, and the adjacent ends of the two groups of third gears 415 are commonly fixedly connected to a auger rod 416.

[0045] Specifically, the second gear 48 drives the third gear 415 to rotate through the first chain 414, and the third gear 415 drives the auger rod 416 to rotate. When the auger rod 416 moves, it rotates to transport stones or branches above the soil and a small amount of soil to one side to form a fence to surround the saline-alkali land being treated, thereby reducing soil loss and preventing soil erosion.

[0046] In this embodiment, the earth-breaking mechanism 5 includes a second chain 51 rotatably connected to the second gear 48, and a fourth gear 52 is rotatably connected to the inner side of the second chain 51. The fourth gear 52 is rotatably connected to the inner side of the second installation box 47 through a rotating shaft. The ends of the two groups of fourth gears 52 that are close to each other are commonly fixedly connected to a second rotating shaft 53. The second rotating shaft 53 is a hollow tube, and the outer side of the second rotating shaft 53 is fixedly connected to multiple groups of symmetrical T-shaped rake rods 54. The front and rear ends of the T-shaped rake rods 54 are both provided with earth-breaking cones 55. One end of the second rotating shaft 53 is rotatably connected to the output port of the pressure water pump 8 through a hose, and the input port of the pressure water pump 8 is fixedly connected to the liquid fertilizer box 7. The lower end of the liquid fertilizer box 7 is fixedly connected to the other group of the first installation boxes 41 of the two groups of first installation boxes 41.

[0047] Specifically, the second gear 48 drives the fourth gear 52 to rotate through the second chain 51, and the fourth gear 52 drives the second rotating shaft 53 to rotate. When the second rotating shaft 53 rotates, the hardened saline-alkali surface layer is broken through the T-shaped rake rod 54 and the breaking cone 55. The T-shaped rake rod 54 can work in both forward and reverse rotations according to its own design.

[0048] In this embodiment, a T-shaped material delivery pipe 56 is provided on the inner side of the T-shaped rake rod 54, and the lower end of the T-shaped material delivery pipe 56 is fixedly connected to the second rotating shaft 53. Two groups of symmetrical second material delivery pipes 57 are slidably connected to the inner side of the T-shaped rake rod 54, and the ends of the two groups of second material delivery pipes 57 that are away from each other are fixedly connected to the breaking cone 55. A feeding hole 58 is provided on the outer side of the second material delivery pipe 57 near the end of the T-shaped material delivery pipe 56, and four groups of third material delivery pipes 510 are fixedly connected to the outer side of the second material delivery pipe 57 near the breaking cone 55. A second spring 511 is provided on the outer side of the second material delivery pipe 57, and one end of the second spring 511 is fixedly connected to the T-shaped material delivery pipe 56, and the other end of the second spring 511 is fixedly connected to the third material delivery pipe 510.

[0049] Specifically, after the ground-breaking cone 55 contacts the soil, it is subjected to pressure, causing the second delivery pipe 57 to slide into the T-shaped delivery pipe 56 and compressing the second spring 511, so that the feed hole 58 enters the T-shaped delivery pipe 56. After the pressure water pump 8 senses the pressure change, it outputs the liquid fertilizer in the liquid fertilizer box 7 to the second rotating shaft 53 to the T-shaped delivery pipe 56, and then allows the liquid fertilizer in the T-shaped delivery pipe 56 to enter the feed hole 58, and finally output to the soil through the third delivery pipe 510. After the ground-breaking cone 55 is separated from the soil, the second delivery pipe 57 is reset by the tension of the second spring 511.

[0050] In this embodiment, a ball 59 is fixedly connected below the outer feed hole 58 of the second feed pipe 57 , and two sets of symmetrical inclined grooves 512 are opened on the inner side of the T-shaped rake rod 54 , and the ball 59 is slidably connected to the inner side of the inclined groove 512 .

[0051] Specifically, when the second delivery pipe 57 slides, it drives the ball 59 to slide in the inclined slide groove 512, so that the second delivery pipe 57 rotates one hundred and eighty degrees, and the feed hole 58 flips, so that the feed hole 58 can enter the liquid fertilizer, and the soil-breaking cone 55 can be inserted into the saline-alkali land and rotated, thereby accelerating the crushing efficiency of the upper hardened saline-alkali land and allowing the soil and liquid fertilizer to be deeply mixed.

[0052] A method for using a saline-alkali land soil improver, applicable to one of the saline-alkali land soil improvers mentioned above, comprising the following steps:

[0053] S1, move the fixed frame 1 to the designated position, start the cylinder 2 to lower the height of the installation frame 3, so that the auger rod 416 and the T-shaped rake rod 54 are close to the ground, and then start the motor 42 to move the first installation box 41 at the upper end of the installation frame 3, and drive the third gear 415 to rotate through the second gear 48 and the first chain 414, and the third gear 415 drives the auger rod 416 to rotate to transport the stones in the soil to one side;

[0054] S2, the second gear 48 drives the fourth gear 52 to rotate through the second chain 51, so that the fourth gear 52 drives the T-shaped rake rod 54 to rotate, so that the soil breaking cone 55 loosens the saline-alkali land, and liquid fertilizer is output to the soil through the second material delivery pipe 57 and the third material delivery pipe 510 during the loosening of the soil, so as to dilute the upper saline-alkali soil;

[0055] S3, the mixing barrel 410 is driven to rotate by the first rotating shaft 411 to mix the biochar fertilizer inside the mixing barrel 410, and then the filter screen 417 is aligned with the discharge port of the lower barrel 49 when the mixing barrel 410 rotates, the biochar fertilizer is output and mixed with the soil mixed with liquid fertilizer, so as to reduce the loss of nutrients in the upper saline-alkali soil.

[0056] Working principle: when in use, the fixed frame 1 is moved to the specified position by towing the truck, the cylinder 2 is started to move the installation frame 3 downward, so that the auger rod 416 and the T-shaped rake rod 54 are close to the saline-alkali soil, the motor 42 is started, the motor 42 drives the first gear 43 to rotate, the first gear 43 is engaged with the rack 44, so that the first gear 43 drives the first installation box 41 to move at the upper end of the installation frame 3, the C-shaped bracket 45 assists one end of the first installation box 41 to avoid friction, the block 46 is connected to the inner side of the limit groove 6 to prevent the first installation box 41 from falling off, and the first gear 43 drives the first rotating shaft 411 to rotate when rotating, the first rotating shaft 411 drives the second gear 48 to rotate, the second gear 48 drives the cross sleeve 412 to rotate, and the cross sleeve 412 drives the mixing barrel 41 0 rotates inside the lower barrel 49, and the lower barrel 49 is fixedly connected to the first installation box 41 through the second installation box 47 to keep its own position fixed. When the mixing barrel 410 rotates, the biochar fertilizer is output to the saline-alkali land below and mixed with the moved soil when the filter screen 417 is aligned with the discharge port of the lower barrel 49. When the cross sleeve 412 rotates, the mixing barrel 410 slides to one side and compresses the first spring 419 through the height difference of the wave-shaped groove close to the fixing ring 418. When the cross sleeve 412 fits the concave part, the first spring 419 opens, so that the mixing barrel 410 produces a shaking effect when it rotates, so that the biochar fertilizer can be continuously mixed and avoid accumulation on the filter screen 417. The filter screen 417 can prevent external soil or impurities from entering the inside of the mixing barrel 410;

[0057] The second gear 48 drives the first chain 414 to rotate, the first chain 414 drives the third gear 415 installed on the mounting plate 413 to rotate, and the third gear 415 drives the auger rod 416 to rotate, so that when the auger rod 416 is close to the soil, the stones or branches on the surface are moved to one side by rotation, so that the stones are evenly piled around the fixed frame 1 to form a fence;

[0058] The second gear 48 drives the second chain 51 to rotate, the second chain 51 drives the fourth gear 52 inside the second installation box 47 to rotate, the fourth gear 52 drives the second rotating shaft 53 to rotate, the second rotating shaft 53 drives the T-shaped rake rod 54 to rotate, the T-shaped rake rod 54 drives the breaking cone 55 to loosen the saline-alkali land, the T-shaped rake rod 54 is designed in a T shape, the upper end of the mounting frame 3 is not affected by the direction when moving back and forth, and continues to work, the breaking cone 55 is subjected to pressure after contacting the soil, so that the second delivery pipe 57 slides into the T-shaped delivery pipe 56 and compresses the second spring 511, and the second delivery pipe 57 drives the ball 59 when sliding. Sliding in the inclined slide groove 512, the second delivery pipe 57 is rotated one hundred and eighty degrees, and the feeding hole 58 is turned over. After sensing the pressure change, the pressure water pump 8 outputs the liquid fertilizer in the liquid fertilizer box 7 to the second rotating shaft 53 to the T-shaped delivery pipe 56, and then the liquid fertilizer in the T-shaped delivery pipe 56 enters the feeding hole 58, and finally is output to the soil through the third delivery pipe 510. When the second delivery pipe 57 rotates, it drives the third delivery pipe 510 and the soil-breaking cone 55 to rotate, so that the soil-breaking cone 55 can be inserted into the saline-alkali land and rotated, thereby accelerating the crushing efficiency of the upper hardened saline-alkali land and deeply mixing the soil and liquid fertilizer.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil improvement machine for saline-alkali land, comprising a fixed frame (1), characterized in that: Four groups of tires are mounted on the lower end of the fixed frame (1), and four groups of cylinders (2) are mounted on the upper end of the fixed frame (1). The output shafts of the four groups of cylinders (2) are fixedly connected to the mounting frame (3). Two groups of symmetrical limiting grooves (6) are provided on the upper end of the mounting frame (3). The limiting grooves (6) are L-shaped. A feeding mechanism (4) is mounted on the upper end of the mounting frame (3). The feeding mechanism (4) includes a second gear (48). A soil breaking mechanism (5) is mounted on the adjacent ends of the two groups of the second gears (48). The feeding mechanism (4) includes a feeding barrel (49). The feeding barrel (49) ) is fixedly connected to one end of the inner wall of the lower material barrel (49), the other end of the fixing ring (418) is designed with a wave-shaped groove, and the groove of the fixing ring (418) is slidably connected to the cross sleeve (412), and a first spring (419) is installed at the other end of the inner wall of the lower material barrel (49), one end of the first spring (419) is fixedly connected to the mixing barrel (410), and the other end of the first spring (419) is fixedly connected to the first rotating shaft (411), the outer side of the first rotating shaft (411) is rotatably connected to the lower material barrel (49), and the inner side of the lower material barrel (49) is rotatably connected to the mixing barrel (410).

2. The soil improvement machine for saline-alkali land according to claim 1, characterized in that: The unloading mechanism (4) comprises two groups of symmetrical first installation boxes (41), wherein the first installation boxes (41) are arranged at the upper end of the installation frame (3), a motor (42) is installed on one side of one of the two groups of first installation boxes (41), a first gear (43) is rotatably connected to the inner side of the first installation box (41), an output shaft of the motor (42) is fixedly connected to one of the two groups of first gears (43), the adjacent ends of the two groups of first gears (43) are fixedly connected to the first rotating shaft (411), the outer side of the first gear (43) is meshingly connected to a rack (44), and the lower end of the rack (44) is fixedly connected to the installation frame (3).

3. The soil improver for saline-alkali land according to claim 2, characterized in that: The lower end of the first installation box (41) is fixedly connected to two groups of symmetrical C-shaped brackets (45), the lower end of the C-shaped bracket (45) is rotatably connected to a roller, the C-shaped bracket (45) is slidably connected to the inner side of the limiting groove (6), and the outer side of the C-shaped bracket (45) is fixedly connected to two groups of symmetrical clamping blocks (46).

4. The soil improvement machine for saline-alkali land according to claim 2, characterized in that: The adjacent sides of the two groups of the first installation boxes (41) are respectively fixedly connected to the second installation boxes (47), and the adjacent sides of the two groups of the second installation boxes (47) are fixedly connected to the material discharge barrel (49). A discharge port is provided on the outer side of the material discharge barrel (49) near the bottom. A filter screen (417) is fixedly connected to the outer side of the mixing barrel (410). The interior of the material discharge barrel (49) outside the first rotating shaft (411) is fixedly connected to a cross sleeve (412), and the outer side of the cross sleeve (412) is slidably connected to the mixing barrel (410).

5. The soil improver for saline-alkali land according to claim 1, characterized in that: The inner side of the second gear (48) is fixedly connected to the first rotating shaft (411), the outer side of the second gear (48) is rotatably connected to the first chain (414), the inner side of the first chain (414) is rotatably connected to the third gear (415), one end of the third gear (415) is rotatably connected to the mounting plate (413) via the rotating shaft, the rear end of the mounting plate (413) is fixedly connected to the second mounting box (47), and the adjacent ends of the two groups of the third gears (415) are commonly fixedly connected to a auger rod (416).

6. The soil improver for saline-alkali land according to claim 1, characterized in that: The soil breaking mechanism (5) comprises a second chain (51) rotatably connected to a second gear (48); a fourth gear (52) is rotatably connected to the inner side of the second chain (51); the fourth gear (52) is rotatably connected to the inner side of a second installation box (47) via a rotating shaft; two groups of fourth gears (52) are fixedly connected to a second rotating shaft (53) at one end close to each other; the second rotating shaft (53) is a hollow tube; a plurality of groups of symmetrical T-shaped rake rods (54) are fixedly connected to the outer side of the second rotating shaft (53); a soil breaking cone (55) is provided at both the front and rear ends of the T-shaped rake rods (54); one end of the second rotating shaft (53) is rotatably connected to an output port of a pressure water pump (8) via a hose; an input port of the pressure water pump (8) is fixedly connected to a liquid fertilizer box (7); and a lower end of the liquid fertilizer box (7) is fixedly connected to a group of first installation boxes (41).

7. The soil improver for saline-alkali land according to claim 6, characterized in that: A T-shaped material delivery pipe (56) is arranged on the inner side of the T-shaped rake rod (54), the lower end of the T-shaped material delivery pipe (56) is fixedly connected to the second rotating shaft (53), two groups of symmetrical second material delivery pipes (57) are slidably connected to the inner side of the T-shaped rake rod (54), the ends of the two groups of second material delivery pipes (57) being far away from each other are fixedly connected to the earth-breaking cone (55), a feeding hole (58) is provided on the outer side of the second material delivery pipe (57) at one end close to the T-shaped material delivery pipe (56), four groups of third material delivery pipes (510) are fixedly connected to the outer side of the second material delivery pipe (57) at a position close to the earth-breaking cone (55), and a second spring (511) is arranged on the outer side of the second material delivery pipe (57), one end of the second spring (511) is fixedly connected to the T-shaped material delivery pipe (56), and the other end of the second spring (511) is fixedly connected to the third material delivery pipe (510).

8. The soil improver for saline-alkali land according to claim 7, characterized in that: A ball bearing (59) is fixedly connected below the outer feed hole (58) of the second feed pipe (57), and two groups of symmetrical inclined sliding grooves (512) are opened on the inner side of the T-shaped rake rod (54), and the ball bearing (59) is slidably connected to the inner side of the inclined sliding groove (512).

9. A method for using a saline-alkali land soil improver, applicable to the saline-alkali land soil improver according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, moving the fixed frame (1) to a designated position, starting the cylinder (2) to lower the height of the mounting frame (3), so that the auger rod (416) and the T-shaped rake rod (54) are close to the ground, and then starting the motor (42) to move the first mounting box (41) at the upper end of the mounting frame (3), driving the third gear (415) to rotate through the second gear (48) and the first chain (414), and the third gear (415) drives the auger rod (416) to rotate to transport the stones in the soil to one side; S2, the second gear (48) drives the fourth gear (52) to rotate via the second chain (51), so that the fourth gear (52) drives the T-shaped rake rod (54) to rotate, thereby causing the soil-breaking cone (55) to loosen the saline-alkali land, and liquid fertilizer is output to the soil via the second material delivery pipe (57) and the third material delivery pipe (510) during the loosening of the soil, thereby diluting the upper saline-alkali soil; S3, driving the mixing barrel (410) to rotate via the first rotating shaft (411), mixing the biochar fertilizer inside the mixing barrel (410), and then aligning the filter screen (417) with the discharge port of the lower barrel (49) when the mixing barrel (410) rotates, outputting the biochar fertilizer and mixing it with the soil mixed with the liquid fertilizer, thereby reducing the loss of nutrients in the upper saline-alkali soil.

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