Vibration type root cutting, ditching and fertilizing combined machine for saline-alkali grassland

Abstract

The saline-alkali grassland seriously restricts the root development and nutrient absorption of crops due to the high-salinity and high-alkalinity soil characteristics of the saline-alkali grassland. In the prior art, a saline-alkali grassland fertilizing machine and a root cutting machine mostly focus on a single operation function and lack an integrated design which has a synergistic effect with soil structure improvement, and a ditching machine lacks an active soil loosening function, so that the technical problems of saline-alkali grassland soil structure improvement and precise fertilization are synchronously solved through a modular integrated design. The four functions of root cutting and soil loosening, vibration ditching, uniform fertilization and soil layer pressing are integrated in a breakthrough mode, cooperation of saline-alkali grassland improvement and fertilization, root cutting and ditching and soil loosening is achieved through an adjustment and feedback mechanism, meanwhile, a root cutting machine and a ditching machine are improved, and the machine has the active operation function; damage to saline-alkali grassland caused by multiple times of operation of agricultural machinery is reduced, and the problems that existing equipment is single in function, incomplete in improvement, serious in resource waste and the like are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery for tilling saline-alkali grasslands. More precisely, the present invention relates to an agricultural operation machine for saline-alkali grasslands that can be used for multiple purposes with a single machine. Background Art

[0002] Due to the high salt content and high alkalinity of the soil in saline-alkali grasslands, the development of crop roots and the absorption of nutrients are severely restricted. In the prior art, most fertilization machines for saline-alkali grasslands focus on a single fertilization function and lack an integrated design for synergistic action with soil structure improvement. The specific limitations are as follows: Traditional fertilization machines mostly directly apply granular fertilizers, but the soil in saline-alkali grasslands is severely compacted, making it difficult for fertilizers to effectively penetrate to the root layer and being easily washed away by rain; the mechanical functions are single. Existing equipment such as trench-type fertilization machines can achieve deep application, but lack active improvement measures for the physical structure of the soil, resulting in limited salt leaching effect. While some tillage and fertilization integrated machines can perform tillage synchronously, they do not perform precise root cutting treatment for the root layer of saline-alkali grasslands and are difficult to improve the microenvironment in the root zone; the soil in saline-alkali grasslands is sticky and compact, and vibration technology can promote the mixing of fertilizers and soil, but there are no cases in existing patents that integrate vibration modules with root cutting and fertilization functions; the coordination between conditioner application and fertilization is insufficient. The improvement of saline-alkali grasslands requires the cooperation of conditioners to neutralize alkalinity, but most existing equipment uses independent fertilization tanks and lacks mixing and discharging mechanisms designed according to the characteristics of conditioners, resulting in limited improvement effects. In summary, there is an urgent need for a composite machine that integrates root cutting and soil loosening, vibration trenching, precise application of fertilizers and conditioners. By cutting roots to break the saline-alkali hardpan layer, vibrating to loosen the soil structure, and adapting to the physical and chemical characteristics of conditioners, the efficient coordination of saline-alkali grassland improvement and fertilization can be achieved. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to synchronously solve the technical problems of soil structure improvement and precise fertilization in saline-alkali grasslands through modular integrated design. The present invention breakthroughly integrates four functions of root cutting and soil loosening, vibration trenching, uniform fertilization, and soil compaction into one. Through adjustment and feedback mechanisms, the coordination of saline-alkali grassland improvement and fertilization is achieved, solving problems such as single functions of existing equipment, incomplete improvement, and serious waste of resources.

[0004] The vibrating root cutting, trenching and fertilizing combined operation machine for saline-alkali grasslands includes a chassis frame, a rotary root cutting mechanism, a fertilization mechanism, a vibration trenching mechanism, a power mechanism, a profiling and depth limiting device, and a soil compaction device.

[0005] The chassis frame is the chassis matrix of a vibratory root cutting, ditching and fertilizing combined operation machine for saline-alkali grasslands. The rotary root cutting mechanism, fertilizing mechanism, ditching tool, vibration mechanism, soil pressing mechanism and ground wheels are all connected to the chassis frame. The DC motor is installed on the upper part of the chassis frame; the rotary root cutting mechanism is fixed to the lower front of the chassis frame through a fixed base and is connected to the hydraulic motor through a coupling, bevel gear direction changer and connecting shaft for power transmission; the fertilizing mechanism is installed in the middle of the chassis frame, the fertilizer tank is in the upper middle of the chassis frame, and a screw auger shaft is installed inside. The driven gear of the screw auger shaft is linked to the driving gear of the DC motor through a chain to obtain power; the ditching tool is located behind the root cutting mechanism, a soil dividing cover is installed on the back of the ditching plow plate, and the upper end of the ditching tool is connected to the vibrator; the vibration mechanism is located at the lower part of the chassis frame and obtains power through a universal coupling connected to a gear hydraulic pump; the soil pressing device is connected to the rear end of the chassis frame; the profiling depth-limiting device is installed on both sides of the chassis frame.

[0006] The chassis frame includes a frame, a root cutting mechanism fixing seat, a motor fixing seat, a ground wheel fixing seat and a vibration frame.

[0007] The chassis frame is a welded part with multiple installation sites.

[0008] The root cutting mechanism includes a root cutting mechanism fixing seat, a transmission box, a hydraulic motor, a root cutting assembly, a coupling and a transmission shaft.

[0009] The root cutting assembly includes a tool shaft sleeve, a front transmission shaft, an intermediate sleeve, an intermediate transmission shaft, a blade drive shaft, a drive shaft sleeve, a fixed flange, a hexagonal tool disc, a connecting gasket and hexagonal fixing bolts. It is located below the frame and is connected to the root cutting mechanism fixing seat through bolts and nuts.

[0010] The root cutting mechanism fixing seat is connected to the chassis frame through a lead screw nut and is fixed at the front end of the chassis frame.

[0011] The vibration mechanism includes a gear hydraulic pump, a coupling, a front transmission shaft, a universal coupling, a rear transmission shaft, an upper vibration base, a lower vibration base, an upper vibration plate, a lower vibration plate, an eccentric wheel mechanism, a vibration plate fixing seat, a flange aluminum slider, a spring, bolts, nuts and gaskets. It is located in the middle of the chassis frame, and the vibration of the slider fixing seat is driven by the centrifugal force generated by the rotation of the eccentric wheel to achieve the purpose of vibrating the mechanism.

[0012] The upper vibration base includes a cylindrical guide rail and an upper base, and is fixed to the chassis frame through bolts and nuts.

[0013] The lower vibration base includes a cylindrical guide rail and a lower base, and is welded to the lower side of the middle of the chassis frame.

[0014] There are a total of 4 cylindrical guide rails, which are respectively and pairwise fixed to the inner sides of the upper base and the lower base through bolts and nuts.

[0015] There are 8 flange aluminum sliders, which are symmetrically installed on the inner sides of the upper and lower sliding plates respectively through bolts and nuts.

[0016] The upper vibration plate and the lower vibration plate each have 4 threaded fixing columns and are equipped with shock-absorbing springs, and are fixed on the upper and lower sides of the vibration plate fixing seat through nuts.

[0017] Four hollow columns with through holes are designed at the upper end of the lower vibration plate, and are connected to the chassis frame through threaded slender columns and nuts, and are equipped with spring shock absorption.

[0018] The ditch opener includes a ditch plow plate, a soil dividing cover and a plow body, which are fixed at the lower end of the lower vibration plate by welding and are driven by the vibration plate to vibrate.

[0019] The eccentric mechanism includes bolts, eccentric wheels, elastic retaining rings, deep groove ball bearings, vibration plate fixing seats, eccentric wheel drive shafts, flat keys and washers. Two eccentric wheels are fixed on the eccentric wheel drive shaft through bolts, washers and flat keys, and are fixed together through bolts. Two deep groove ball bearings are assembled on both sides of the vibration plate fixing seat, and elastic retaining rings are respectively assembled. The eccentric mechanism obtains the power of the gear hydraulic pump through two pairs of universal couplings and the front drive shaft.

[0020] The fertilizing mechanism includes a fertilizer box, a DC motor, an auger shaft, a speed sensor, a support plate, a radiator, a radiator support plate, a fertilizer outlet and a fertilizing pipeline. The fertilizing pipeline is located at the rear of the chassis frame. After the root cutting mechanism cuts the grass roots, the ditch opener opens a fertilizing ditch, and then fertilizes to enhance the soil fertility of the grassland and improve the crop growth environment.

[0021] The fertilizer box is located above the chassis frame and is used to store fertilizers. The bottom of the fertilizer box is equipped with an auger shaft, and the fertilizers are transported through the rotation of the auger shaft to achieve the purpose of fertilizer application.

[0022] There are 2 fertilizer box support plates, which are installed at the lower ends of the two sides of the fertilizer box. Five through holes are opened at the connection between the support plate and the fertilizer box, and four through holes are opened at the connection with the chassis frame, and are fixed through bolts and nuts.

[0023] The radiator support plate is fixed on the fertilizer box support plate through bolts and nuts.

[0024] The radiator is fixed on the radiator support plate through bolts and nuts, which can prevent heat accumulation at the bottom of the fertilizer box during operation.

[0025] The fertilizer outlet of the fertilizer box is fixed on the chassis frame and the fertilizer box through bolts and nuts.

[0026] The lower fertilizer pipeline is a welded part, which is fixed at the fertilizer outlet through bolts and nuts. A connecting plate is welded in the middle, and a strip-shaped through hole is opened, which can be connected to the vibrating lower base to prevent the lower fertilizer pipeline from being distorted or broken.

[0027] One end of the auger shaft located at the front side of the fertilizer box is equipped with a rotational speed sensor, which can monitor the rotational speed of the auger shaft in real time, thereby controlling the fertilizer discharge amount of the fertilizer box; the other end is a gear driven wheel, which is connected to the motor driving wheel through a chain to obtain power.

[0028] The power mechanism includes a 12V DC motor that drives the auger shaft to rotate, a BM3 hydraulic motor that drives the root cutting cutter disc to rotate, a gear hydraulic pump, a hydraulic oil kettle, and an adjustment valve.

[0029] The hydraulic oil kettle is installed on the outer side of the upper end of the fertilizer box through bolts and nuts.

[0030] There are 2 adjustment valves, which are installed on the outer end face of the support plate of the fertilizer box on the opposite side of the fuel tank.

[0031] The soil compaction device includes a soil compaction wheel fixing seat, a rear pull rod, a rear support, a spring, a soil compaction wheel, and a rear support shaft.

[0032] The soil compaction wheel fixing seat is a welded part, which is fixed to the rear side of the chassis frame through bolts and nuts, and is welded with 2 pairs of vertical plates.

[0033] The rear support is connected to the fixing seat through bolts and nuts, and the rear support shaft is fixed through nuts.

[0034] The upper end of the rear pull rod is equipped with an eye shaft and is connected to the fixing seat, and the lower end is connected to the rear support through a pin shaft. The rear pull rod is sleeved with a spring to achieve a shock absorption effect.

[0035] The soil compaction wheel is installed on the support shaft, and after the vibration fertilization work, it performs soil compaction work to reduce water evaporation and protect the soil structure.

[0036] There are 2 pairs of profiling depth-limiting devices, which include hydraulic cylinders, ground wheels, and ground wheel supports, and are installed on both sides of the chassis frame.

[0037] The ground wheel support is sleeved in the hollow vertical pipe on the outer side of the chassis frame and is connected to the piston rod of the hydraulic cylinder through a hole-shaft fit, thereby controlling the overall working depth of the machine.

[0038] The support shaft of the ground wheel is welded to the support, and the terrain can be imitated through the rolling of the ground wheel to stabilize the working depth.

[0039] Compared with the prior art, the beneficial effects of the present invention are:

[0040] 1. Combining four agricultural operations of root cutting, ditch opening, vibration fertilization, and soil compaction on one agricultural machine, avoiding repeated work, and at the same time reducing the damage to the soil structure of saline-alkali grasslands caused by multiple operations of agricultural machinery, greatly improving the agricultural work efficiency.

[0041] 2. A vibration ditch opening mechanism is installed in front of the fertilizer discharging device, which helps to loosen the compacted soil blocks, open the fertilization soil layer, and improve the fertilization efficiency.

[0042] 3. The root cutting cutter head adopts an active root cutting method and can achieve variable speed function according to actual conditions.

[0043] 4. The vibrating ditching device innovatively adopts a combination of a hydraulic motor, an eccentric wheel mechanism and a spring, with a simple mechanism and good stability. Description of the Drawings

[0044] Figure 1 is the general assembly drawing of the present invention;

[0045] Figure 2 is the chassis frame of the present invention;

[0046] Figure 3 is the fertilizing mechanism of the present invention;

[0047] Figure 4 is the assembly drawing of the vibrating ditching mechanism and the chassis frame of the present invention;

[0048] Figure 5 is the vibrating ditching mechanism of the present invention;

[0049] Figure 6 is the eccentric wheel mechanism of the present invention;

[0050] Figure 7 is the root cutting mechanism of the present invention.

[0051] In the figure: A, chassis frame; B, fertilizer box mechanism; C, root cutting mechanism; D, vibrating ditching mechanism; E, depth limiting mechanism; F, pressing mechanism; 1, depth limiting ground wheel bracket; 2, lower base; 3, fertilizer box; 4, lower fertilizer outlet; 5, auger shaft; 6, lower fertilizer pipeline; 7, hydraulic oil pot; 8, fertilizer box support plate 9, radiator; 10, radiator support plate; 11, upper base; 12, coupling; 13 gear hydraulic pump; 14, DC motor; 15, on the cylindrical guide rail; 16, vibrating plate; 17, external shock absorbing spring of the vibrating mechanism; 18, universal coupling; 19, lower vibrating plate; 20, ditching tool; 21, internal shock absorbing spring of the vibrating mechanism; 22, vibrating plate fixing seat; 23, eccentric wheel; 24, flange aluminum slider; 25, soil dividing cover; 26, hydraulic motor; 27, front drive shaft; 28, bevel gear reversing box; 29, bushing; 30, hexagonal cutter head; 31, root cutting mechanism fixing seat; 32, right angle box. Detailed Embodiment

[0052] Refer to Figure 1 , the vibrating root cutting and ditching fertilizing combined operation machine for saline-alkali grassland includes a chassis frame (A), a fertilizing mechanism (B), a root cutting mechanism (C), a vibrating ditching mechanism (D), a depth limiting mechanism (E) and a pressing mechanism (F).

[0053] The described chassis frame (A) is the base body of the vibrating root cutting, ditching and fertilizing combined operation machine for saline-alkali grassland. The fertilizing mechanism (B) is located at the upper part of the chassis frame (A) and is fixed to the chassis frame (A) by bolts. The root cutting mechanism (C) is fixed to the front end of the chassis frame (A) by bolts and lead screws. The upper base (11) of the vibrating ditching mechanism (D) is fixed to the corresponding position at the upper end of the middle part of the chassis frame (A) by bolts. The depth limiting mechanism (E) is installed on both sides of the chassis frame (A) by bolts. The pressing mechanism (F) is fixed to the rear end of the chassis frame (A) by bolts.

[0054] Refer to Figure 2 , the described chassis frame (A) is a welded part with multiple installation points. The lower base (2) of the vibrating ditching mechanism (D) is welded to the lower end of the middle part of the chassis frame (A), and two depth limiting ground wheel brackets (1) are welded to both sides of the chassis frame (A).

[0055] Refer to Figure 3 , the fertilizer box (3) is fixed above the chassis frame (A) by the fertilizer box support plate (8) and bolts. The auger shaft (5) is installed at the bottom of the fertilizer box (3). Two fertilizer box support plates (8) connect the chassis frame (A) and the fertilizer box (3) by bolts and nuts. The radiator support plate (10) is fixed to the fertilizer box support plate (8) by bolts and nuts. The radiator (9) is fixed to the radiator support plate (10) by bolts and nuts. The hydraulic oil pot (7) is installed on the outer side of the upper end of the fertilizer box (3) by bolts and nuts.

[0056] The fertilizer discharging port (4) of the fertilizer box is fixed to the chassis frame (A) and the fertilizer box (3) by bolts and nuts. The fertilizer discharging pipe (6) is a welded part and is fixed to the fertilizer discharging port (4) by bolts and nuts. A connecting plate with a through hole is welded in the middle of the fertilizer discharging pipe (6).

[0057] Refer to Figures 4 to 6 , the described vibrating ditching mechanism (D) includes a gear hydraulic pump (13), a coupling (12), a universal coupling (18), a vibrating upper base, a vibrating lower base, an upper vibrating plate (16), a lower vibrating plate (19), an eccentric mechanism (23), a vibrating plate fixing seat (22), a flange aluminum slider (24), an external shock-absorbing spring (17) of the vibrating mechanism, an internal shock-absorbing spring (21) of the vibrating mechanism, and a ditching tool (20).

[0058] The vibrating upper base includes a cylindrical guide rail (15) and an upper base (11). The upper base (11) is fixed to the chassis frame (A) by bolts and nuts. Two cylindrical guide rails (15) are fixed to the lower end of the upper base by bolts.

[0059] The vibrating lower base includes a cylindrical guide rail (15) and a lower base (2). The lower base (2) is welded to the lower side of the middle part of the chassis frame (A).

[0060] There are a total of 4 cylindrical guide rails (15), which are respectively fixed in pairs on the inner sides of the upper base (11) and the lower base (2) through bolts and nuts.

[0061] Four threaded fixing columns are welded on the upper vibrating plate (16) and the lower vibrating plate (19) respectively, and internal damping springs (21) are installed, and they are fixed on the upper and lower sides of the vibrating plate fixing seat (22) through nuts.

[0062] Four hollow columns with through holes are designed at the upper end of the lower vibrating plate (19), and are connected to the chassis frame (A) through threaded slender columns and nuts, and external damping springs (17) are installed for damping.

[0063] The ditch opener (20) includes a ditch plow plate, a soil dividing cover (25) and a plow body, and is fixed to the lower end of the lower vibrating plate by welding, and is driven by the lower vibrating plate (19) to vibrate. The soil dividing cover (25) is fixed to the back side of the lower end of the ditch opener (20) through bolts and nuts.

[0064] The eccentric mechanism (23) includes a bolt (26), an eccentric wheel (27), an elastic retaining ring (28), a deep groove ball bearing (29), a vibrating plate fixing seat (22), an eccentric wheel transmission shaft (30), a flat key (31) and a washer (32). Two eccentric wheels are fixed on the eccentric wheel transmission shaft through bolts (26), washers (32) and flat keys (31), and are fixed together through bolts. Two deep groove ball bearings (29) are assembled on both sides of the vibrating plate fixing seat, and elastic retaining rings (28) are respectively assembled. The eccentric mechanism (23) obtains the power of the gear hydraulic pump (13) through two pairs of universal couplings (18) and the front transmission shaft (12).

[0065] Refer to Figure 7 , the root cutting mechanism (C) includes a hydraulic motor (33), a front transmission shaft (34), a bevel gear reversing box (35), a bushing (36), a rear transmission shaft, a hexagonal cutter head (37), a right angle box (38) and a root cutting mechanism fixing seat (39).

[0066] The hydraulic motor (33) is installed on the root cutting mechanism fixing seat (39), the bushing (36) is fixed to the lower end of the root cutting mechanism fixing seat (39) through bolts, and the hexagonal cutter head (37) is fixed on the transmission shaft of the right angle box (38).

[0067] The working principle of the present invention:

[0068] Refer to Figures 1 to 4The working principle of the saline-alkali grassland vibration root cutting and ditching combined operation machine of the present invention is as follows: the chassis frame (A) is a fixing frame for the root cutting mechanism (C), the fertilizer box mechanism (B), the vibration ditching mechanism (D), the depth limiting mechanism (E) and the suppression mechanism (F). The root cutting mechanism (C), the vibration ditching mechanism (D), the fertilizer supply pipeline (6) and the suppression mechanism (F) are sequentially installed on the same straight line.

[0069] The hydraulic motor (33) drives the hexagonal cutter disc (37) of the root cutting mechanism (C) to rotate to perform the root cutting operation; after the root cutting, the gear hydraulic pump (13) transmits power to the vibration trenching mechanism (D) through the universal joint, and the centrifugal force generated by the rotation of the eccentric wheel (27) drives the sliding plate fixing seat (22) to vibrate, thereby driving the upper vibration plate (16) and the lower vibration plate (19) to vibrate, and the trenching device (20) welded to the lower end of the lower vibration plate (19) vibrates back and forth to perform the trenching operation; the DC motor (14) drives the auger shaft (5) to rotate, driving the fertilizer in the fertilizer box (3) to fall into the trench through the lower fertilizer port (4) and the lower fertilizer pipe (6); finally, the soil compaction operation is completed by the compaction mechanism (F).

[0070] See also Figures 4 to 6 The gear hydraulic pump (13) drives the eccentric wheel (27) to rotate and generate periodic vibration. Under the joint action of the external shock-absorbing spring (17) of the vibration mechanism and the internal shock-absorbing spring (21) of the vibration mechanism, the flange aluminum slider (24) of the vibration mechanism (D) reciprocates back and forth along the cylindrical guide rail (15), so that the furrow opener (20) can also loosen the soil while furrowing. The speed of the gear hydraulic pump (13) is adjusted according to the actual situation to improve the practicality of the machine.

[0071] See also Figure 7 The root cutting mechanism (C) uses a hydraulic motor (33) to drive a hexagonal cutter disc (37) to actively cut roots, so that the root cutting operation can adjust the cutter disc speed according to actual conditions, thereby improving the root cutting efficiency.

Claims

1. A vibrating root cutting, trenching and fertilizing combined operation machine for saline-alkali grassland, characterized in that: It includes a chassis frame (A), a fertilizing mechanism (B), a root cutting mechanism (C), a vibration trenching mechanism (D), a depth limiting mechanism (E) and a pressing mechanism (F); The chassis frame (A) is the base of the saline-alkali grassland vibration root cutting, ditching and fertilizing combined operation machine. The fertilizing mechanism (B) is located at the upper part of the chassis frame (A) and is fixed to the chassis frame (A) by bolts. The root cutting mechanism (C) is fixed to the front end of the chassis frame (A) by bolts and a lead screw. The upper base (11) of the vibration ditching mechanism (D) is fixed to the position corresponding to the lower base at the upper end of the middle part of the chassis frame (A) by bolts. The depth limiting mechanism (E) is installed on both sides of the chassis frame (A) by bolts. The suppression mechanism (F) is fixed to the rear end of the chassis frame (A) by bolts.

2. The saline-alkali grassland vibration root cutting, trenching and fertilization combined operation machine according to claim 1, characterized in that: The chassis frame (A) is a welded part having a plurality of mounting points. The lower base (2) of the vibrating ditching mechanism (D) is welded to the lower end of the middle part of the chassis frame (A), and two depth-limiting wheel brackets (1) are welded to both sides of the chassis frame (A).

3. The saline-alkali grassland vibration root cutting, trenching and fertilization combined operation machine according to claim 1, characterized in that: The fertilizer box (3) is fixed on the upper part of the chassis frame (A) through a fertilizer box support plate (8) and bolts, the auger shaft (5) is installed at the bottom of the fertilizer box (3), the two fertilizer box support plates (8) are connected to the chassis frame (A) and the fertilizer box (3) through bolts and nuts, the radiator support plate (10) is fixed to the fertilizer box support plate (8) through bolts and nuts, the radiator (9) is fixed to the radiator support plate (10) through bolts and nuts, and the hydraulic oil pot (7) is installed on the outer side of the upper end of the fertilizer box (3) through bolts and nuts; The lower fertilizer opening (4) of the fertilizer box is fixed to the chassis frame (A) and the fertilizer box (3) by means of bolts and nuts; the lower fertilizer pipe (6) is a welded part, fixed to the lower fertilizer opening (4) by means of bolts and nuts; a connecting plate with a through hole is welded to the middle of the lower fertilizer pipe (6).

4. The saline-alkali grassland vibration root cutting, trenching and fertilization combined operation machine according to claim 1, characterized in that: The vibration trenching system (D) comprises a gear hydraulic pump (13), a coupling (12), a universal coupling (18), a vibration upper base, a vibration lower base, an upper vibration plate (16), a lower vibration plate (19), an eccentric mechanism (23), a vibration plate fixing seat (22), a flange aluminum slider (24), an external shock absorbing spring (17) of the vibration mechanism, an internal shock absorbing spring (21) of the vibration mechanism and a trenching device (20; The vibrating upper base comprises a cylindrical guide rail (15) and an upper base (11), wherein the upper base (11) is fixed to the chassis frame (A) by bolts and nuts, and two cylindrical guide rails (15) are fixed to the lower end of the upper base by bolts; The vibrating lower base comprises a cylindrical guide rail (15) and a lower base (2), and the lower base (2) is welded to the lower side of the middle part of the chassis frame (A); There are four cylindrical guide rails (15) in total, which are fixed in pairs to the inner sides of the upper base (11) and the lower base (2) respectively by bolts and nuts; The upper vibration plate (16) and the lower vibration plate (19) are respectively welded with four threaded fixing columns and equipped with internal shock absorbing springs (21), which are fixed to the upper and lower sides of the vibration plate fixing seat (22) by nuts; The upper end of the lower vibration plate (19) is designed with four hollow columns with through holes, which are connected to the chassis frame (A) through threaded slender columns and nuts, and are equipped with external shock-absorbing springs (17) for shock absorption; The furrow opener (20) comprises a furrowing plowboard, a soil dividing cover (25) and a plow body, which are fixed to the lower end of the lower vibration plate by welding and driven to vibrate by the lower vibration plate (19); the soil dividing cover (25) is fixed to the back side of the lower end of the furrow opener (20) by bolts and nuts; The eccentric mechanism (23) comprises bolts (26), an eccentric wheel (27), an elastic retaining ring (28), a deep groove ball bearing (29), a vibration plate fixing seat (22), an eccentric wheel transmission shaft (30), a flat key (31) and a washer (32); two eccentric wheels are fixed on the eccentric wheel transmission shaft by means of bolts (26), a washer (32) and a flat key (31), and are fixed together by means of bolts; two deep groove ball bearings (29) are mounted on both sides of the vibration plate fixing seat and are respectively mounted with elastic retaining rings (28); the eccentric mechanism (23) obtains power from a gear hydraulic pump (13) through two pairs of universal couplings (18) and a front transmission shaft (12).

5. The saline-alkali grassland vibration root cutting, trenching and fertilization combined operation machine according to claim 1, characterized in that: The root cutting mechanism (C) comprises a hydraulic motor (33), a front transmission shaft (34), a bevel gear reversing box (35), a shaft sleeve (36), a rear transmission shaft, a hexagonal cutter disc (37), a right angle box (38) and a root cutting mechanism fixing seat (39); the hydraulic motor (33) is mounted on the root cutting mechanism fixing seat (39), the shaft sleeve (36) is fixed to the lower end of the root cutting mechanism fixing seat (39) by bolts, and the hexagonal cutter disc (37) is fixed to the transmission shaft of the right angle box (38).

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