A hydraulic drive pre-pressing, seeding, and pressing system for a seeding machine

Abstract

The utility model discloses a kind of hydraulic transmission pre-compaction, sowing, compacting system for seeding machine, including sowing component, its front side is equipped with pre-compaction roller assembly, rear side is equipped with compacting roller assembly, sowing component includes crossbeam one, and sowing unit is equipped on crossbeam one, pre-compaction roller assembly includes crossbeam two and roller body, crossbeam two both ends are fixedly connected with roller body both ends respectively through a side plate, compacting roller assembly and pre-compaction roller assembly are mirror image symmetry structure each other, the left and right ends of crossbeam one, the left and right ends of crossbeam two on pre-compaction roller assembly and the left and right ends of crossbeam two on compacting roller assembly are all fixedly installed on a corresponding vertical plate weldment, pre-compaction roller assembly and compacting roller assembly are respectively equipped with the hydraulic motor for driving corresponding roller body rotating operation. Hydraulic motor drive transmission mode connection structure is simple, installation or maintenance operation is simple, it helps to greatly shorten the sowing machine downtime operation length when pre-compaction roller assembly or compacting roller assembly two drive systems failure causes.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a hydraulic transmission pre-pressing, sowing, and pressing system for a seeder. Background Technology

[0002] The pre-compacting, sowing, and compacting system is a seeder component that integrates these three functions. Existing pre-compacting, sowing, and compacting systems primarily use ground wheel drives, chain drives, and gear drives for the pre-compacting roller assembly and compacting roller assembly. These drive methods are mostly complex in design, difficult to assemble or maintain, and malfunctions can cause prolonged seeder downtime, severely limiting the seeder's sowing efficiency. Therefore, this invention proposes a hydraulically driven pre-compacting, sowing, and compacting system for a seeder to solve the aforementioned technical problems. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects in the existing technology and provide a hydraulic transmission pre-pressing, sowing, and pressing system for a seeder. The pre-pressing roller assembly and the pressing roller assembly are driven by independent hydraulic motors, that is, the corresponding rollers are directly connected to the hydraulic motors. The connection structure is simple, and the installation or maintenance is convenient. Therefore, when the hydraulic motor on the pre-pressing roller assembly or the pressing roller assembly fails, it is only necessary to disassemble the faulty hydraulic motor for repair or replace it with a new one. This helps to significantly reduce the downtime of the seeder caused by the failure of the drive system of the pre-pressing roller assembly or the pressing roller assembly, and improves the working efficiency of the seeder. The overall structure is ingeniously and reasonably designed, with high feasibility for preparation and implementation, good stability, and strong economic practicality.

[0004] To achieve the above objectives, the technical solution of this utility model is to design a hydraulic transmission pre-pressing, sowing, and pressing system for a seeder, including a sowing component. The sowing component has a pre-pressing roller assembly on its front side and a corresponding pressing roller assembly on its rear side. The sowing component includes a horizontally placed crossbeam one, on which several downwardly extending sowing units are spaced along its length. The pre-pressing roller assembly includes a horizontally placed crossbeam two and a roller body, with the crossbeam two located above and behind the roller body. The left and right ends of the crossbeam two are respectively fixedly connected to the left and right ends of the roller body via side plates, forming a quadrilateral frame structure. The press roller assembly and the pre-press roller assembly are mirror images of each other with respect to the sowing assembly. The assembly also includes two vertical plate welded parts. The left end of the first crossbeam, the left end of the second crossbeam on the pre-press roller assembly, and the left end of the second crossbeam on the press roller assembly are all fixedly installed on one of the vertical plate welded parts. The right end of the first crossbeam, the right end of the second crossbeam on the pre-press roller assembly, and the right end of the second crossbeam on the press roller assembly are all fixedly installed on the other vertical plate welded part. The pre-press roller assembly and the press roller assembly are each equipped with a hydraulic motor for driving the corresponding roller to rotate.

[0005] This utility model discloses a hydraulic transmission pre-pressing, sowing, and pressing system for a seeder. The pre-pressing roller assembly and the pressing roller assembly are driven by independent hydraulic motors, meaning the corresponding rollers are directly connected to the hydraulic motors. The connection structure is simple, and installation and maintenance are convenient. Therefore, in the event of a failure of the hydraulic motor in the pre-pressing roller assembly or the pressing roller assembly, it is only necessary to disassemble the faulty hydraulic motor for repair or replacement. This helps to significantly reduce the downtime of the seeder due to failure of the drive system of the pre-pressing roller assembly or the pressing roller assembly, thereby improving the working efficiency of the seeder. The overall structure is ingeniously and reasonably designed, with high feasibility for manufacture and implementation, good stability, and strong economic practicality.

[0006] A preferred technical solution is that the hydraulic motors on the pre-pressing roller assembly and the press roller assembly are both located at the left or right end of the sowing assembly. A valve body is also installed at the end of the crossbeam near the hydraulic motor. One end face of the valve body has an oil inlet and an oil return port. The other end face of the valve body has two oil outlets and two oil return ports. The two oil outlets are connected to the first oil inlet, and the two oil return ports are connected to the first oil return port. One oil outlet is connected to the oil inlet of the hydraulic motor on the pre-pressing roller assembly via an oil pipe, and one oil return port is connected to the oil return port of the hydraulic motor on the pre-pressing roller assembly via an oil pipe. The other oil outlet is connected to the oil inlet of the hydraulic motor on the press roller assembly via an oil pipe, and the other oil return port is connected to the oil return port of the hydraulic motor on the press roller assembly via an oil pipe. The oil inlet and oil return ports on the valve body are each provided with an oil pipe for connection to the hydraulic cylinder. The hydraulic motors on the pre-pressing roller assembly and the press roller assembly are both located at the same end of the seeding assembly. Thus, the hydraulic motors on both are connected to the seeder cylinder through a valve body. The layout is reasonable and the feasibility of its preparation and implementation is high.

[0007] A further preferred technical solution includes that the oil inlet and return ports, the two outlet ports and two return ports on the valve body, and the oil inlet and return ports of the hydraulic motor are all equipped with external hexagonal connectors. Both ends of the external hexagonal connectors are threaded. Locking nuts are provided at both ends of oil pipes one and two. One end of oil pipe one is screwed to the corresponding threaded section on the outer side of the external hexagonal connector on the hydraulic motor via the locking nut. The other end of oil pipe one or one end of oil pipe two is screwed to the corresponding threaded section on the outer side of the external hexagonal connector on the valve body via the locking nut. Oil pipes one and two are fixedly connected to the threaded section on the outer side of the external hexagonal connector on the hydraulic motor or valve body via the locking nut. This simple installation method ensures convenience and efficiency during the maintenance, disassembly, or installation of the hydraulic motor and valve body.

[0008] A further preferred technical solution includes a support plate with mounting holes. The valve body has mounting holes penetrating the upper and lower corners. The valve body is located on top of the support plate, and the two are fixedly connected by bolt assemblies passing through the corresponding mounting holes. The support plate also has lugs extending to the left or right at its front and rear side edges. The support plate overlaps and rests on top of the first crossbeam, and is fixedly connected to the first crossbeam by U-bolt assemblies that span across the first crossbeam and pass through the mounting holes on the lugs at both ends. The method of fixing the valve body on the first crossbeam is simple, further ensuring the convenience and efficiency of disassembly or installation during valve body maintenance.

[0009] A further preferred technical solution includes: the roller body end has an annular mounting groove surrounding the outer periphery of its central shaft; a bearing seat fitted onto the end of the central shaft is installed inside the annular mounting groove; a transition flange is fixedly installed on the outer ring of the bearing seat; the lower end of the side plate has a through hole penetrating the plate body and a mounting hole surrounding the outer periphery of the through hole; the lower end of the side plate is fitted onto the corresponding transition flange, and the two are fixedly connected together by screws passing through the corresponding mounting holes; the hydraulic motor has an output shaft at one end with a mounting plate having mounting holes; the hydraulic motor is fixedly installed on the outer side surface of the side plate by screws passing through the corresponding mounting holes of the mounting plate and the side plate; and the output shaft of the hydraulic motor passes through the through hole on the corresponding side plate and is connected to the central shaft of the corresponding roller body for transmission.

[0010] The crossbeam has end plates with mounting holes fixed at both ends, and the side plates have mounting holes penetrating the plate body at their upper ends. The upper ends of the side plates are attached to the corresponding end plates, and the two are fixedly connected together by bolt assemblies that pass through the corresponding mounting holes. The fixing and installation methods of the lower ends of the side plates to the ends of the roller body and the upper ends of the side plates to the two ends of the crossbeam are relatively simple and have good stability, thereby ensuring high pressing efficiency of the pre-pressing roller assembly and the pressing roller assembly.

[0011] A further preferred technical solution is that the central shaft end of the roller body and the output shaft of the hydraulic motor are coaxially connected by a keyway. This simple assembly method for the hydraulic motor's output shaft and the central shaft end of the roller body further ensures convenient and efficient maintenance of the hydraulic motor.

[0012] A further preferred technical solution includes a hydraulic motor with its oil inlet and outlet located at its top, and a semi-shell cover. This semi-shell cover is fitted onto the lower side of the hydraulic motor from bottom to top, and its open end facing the corresponding side plate has an outwardly extending flange. The flange has mounting holes, and the semi-shell cover is fixed to the lower outer side of the side plate by screws passing through the corresponding mounting holes on both the flange and the side plate. The semi-shell cover protects the hydraulic motor, effectively preventing dust from entering the motor and helping to extend its service life.

[0013] A further preferred technical solution is that both ends of the roller body on the pre-pressing roller assembly and both ends of the roller body on the pressing roller assembly are provided with ridging discs extending outward to the periphery.

[0014] A further preferred technical solution is that a pedal assembly is installed on the top of the first crossbeam, the top of the second crossbeam located on the pre-pressing roller assembly, and the top of the second crossbeam located on the pressing roller assembly.

[0015] The advantages and beneficial effects of this utility model are as follows:

[0016] 1. This utility model discloses a hydraulic transmission pre-compacting, sowing, and compaction system for a seeder. The pre-compacting roller assembly and the compaction roller assembly are driven by independent hydraulic motors, meaning the corresponding rollers are directly connected to the hydraulic motors. The connection structure is simple, and installation and maintenance are convenient. Therefore, in the event of a failure of the hydraulic motor in the pre-compacting roller assembly or the compaction roller assembly, it is only necessary to disassemble the faulty hydraulic motor for repair or replacement. This helps to significantly reduce the downtime of the seeder due to failure of the drive system of the pre-compacting roller assembly or the compaction roller assembly, thereby improving the working efficiency of the seeder. The overall structure is ingeniously and reasonably designed, with high feasibility for preparation and implementation, good stability, and strong economic practicality.

[0017] 2. The hydraulic motors on the pre-pressing roller assembly and the press roller assembly are both located at the same end of the seeding assembly. Thus, the hydraulic motors on both are connected to the seeder cylinder through a valve body. The layout is reasonable and the feasibility of preparation and implementation is high.

[0018] 3. Both oil pipe one and oil pipe two are fixedly connected to the external threaded section of the outer end of the external hexagonal connector on the hydraulic motor or valve body by locking nuts. The fixed installation method is simple and ensures the convenience and efficiency of the hydraulic motor, valve body maintenance, disassembly or installation.

[0019] 4. The central shaft end of the roller body and the output shaft of the hydraulic motor are coaxially connected by a keyway. The transmission assembly method between the output shaft of the hydraulic motor and the central shaft end of the roller body is simple, further ensuring the convenience and efficiency of hydraulic motor maintenance. Attached Figure Description

[0020] Figure 1 This is a perspective view from the right front side of the hydraulic transmission pre-compacting, sowing, and compacting system of this utility model used in a seeder;

[0021] Figure 2 This is a partial right-end view of the hydraulic transmission pre-compacting, sowing, and compacting system for a seeder according to this utility model;

[0022] Figure 3 This is a three-dimensional view (right end split) of the hydraulic transmission pre-compacting, sowing, and compacting system of this utility model used in a seeder;

[0023] Figure 4 This is a split view of the right end of the hydraulic transmission pre-compacting, sowing, and compacting system for a seeder according to this utility model;

[0024] Figure 5 This is an exploded view of the valve body, oil pipe 2, and U-bolt assembly.

[0025] In the diagram: 1. Sowing assembly; 2. Pre-pressing roller assembly; 3. Pressing roller assembly; 4. Pedal assembly; 5. Vertical plate welded assembly; 6. Hydraulic motor; 7. Oil pipe one; 8. Valve body; 9. Oil pipe two; 10. Semi-shell cover; 11. U-bolt assembly; 12. External hexagonal connector; 13. Locking nut; 1-1. Crossbeam one; 1-2. Sowing unit; 2-1. Roller body; 2-1a. Annular mounting groove; 2-1b. Central shaft; 2-2. Ridging disc; 2-3. Side plate; 2-3a. Through hole; 2-4. Bearing seat; 2-5. Transition flange; 2-6. Crossbeam two; 2-6a. End plate; 6-1. Mounting plate; 8-1. Support plate; 8-1a. Lug; 10-1. Flanged edge. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0027] Example

[0028] like Figures 1-5 As shown, this utility model is a hydraulic transmission pre-pressing, sowing, and pressing system for a seeder, including a sowing component 1. The sowing component 1 has a pre-pressing roller assembly 2 on its front side and a corresponding pressing roller assembly 3 on its rear side. The sowing component 1 includes a horizontally placed beam 1-1, on which several downwardly extending sowing units 1-2 are spaced along its length. The pre-pressing roller assembly 2 includes a horizontally placed beam 2-6 and a roller body 2-1, with the beam 2-6 located above and behind the roller body 2-1. The left and right ends of the beam 2-6 are respectively fixedly connected to the left and right ends of the roller body 2-1 via side plates 2-3, forming a quadrilateral frame structure. The pressing roller assembly... Component 3 and the pre-pressing roller assembly 2 are mirror images of each other with respect to the sowing assembly 1. Component 3 also includes two vertical plate welded components 5. The left end of the first crossbeam 1-1, the left end of the second crossbeam 2-6 on the pre-pressing roller assembly 2, and the left end of the second crossbeam 2-6 on the pressing roller assembly 3 are all fixedly installed on one of the vertical plate welded components 5. The right end of the first crossbeam 1-1, the right end of the second crossbeam 2-6 on the pre-pressing roller assembly 2, and the right end of the second crossbeam 2-6 on the pressing roller assembly 3 are all fixedly installed on the other vertical plate welded component 5. A hydraulic motor 6 for driving the corresponding roller body 2-1 to rotate is installed on both the pre-pressing roller assembly 2 and the pressing roller assembly 3.

[0029] Preferably, the hydraulic motor 6 on the pre-pressing roller assembly 2 and the hydraulic motor 6 on the pressing roller assembly 3 are both located at the left or right end of the sowing assembly 1. A valve body 8 is also installed at the end of the crossbeam 1-1 near the hydraulic motor 6. One end face of the valve body 8 has an oil inlet and an oil return port, and the other end face has two oil outlets and two oil return ports. The two oil outlets are connected to the oil inlet, and the two oil return ports are connected to the oil return port. One oil outlet is connected to the position via an oil pipe 7. The hydraulic motor 6 on the pre-pressing roller assembly 2 is connected to the oil inlet. One oil return port is connected to the oil return port of the hydraulic motor 6 on the pre-pressing roller assembly 2 via an oil pipe 7. Another oil outlet is connected to the oil inlet of the hydraulic motor 6 on the pressing roller assembly 3 via an oil pipe 7. Another oil return port is connected to the oil return port of the hydraulic motor 6 on the pressing roller assembly 3 via an oil pipe 7. The oil inlet and oil return ports on the valve body 8 are respectively provided with oil pipes 9 for connecting to the oil cylinder.

[0030] More preferably, the oil inlet and return ports, the two outlet ports and the two return ports on the valve body 8, and the oil inlet and return ports of the hydraulic motor 6 are all equipped with external hexagonal connectors 12. Both ends of the external hexagonal connectors 12 are provided with external threads. The oil pipes 1 and 2 are respectively provided with locking nuts 13 at both ends. One end of the oil pipe 1 is screwed to the corresponding external threaded section of the external hexagonal connector 12 on the hydraulic motor 6 through the locking nut 13. The other end of the oil pipe 1 or one end of the oil pipe 2 is screwed to the corresponding external threaded section of the external hexagonal connector 12 on the valve body 8 through the locking nut 13.

[0031] More preferably, it also includes a support plate 8-1 with mounting holes. The valve body 8 has mounting holes that pass through the corners of the upper and lower end faces. The valve body 8 is located on the top of the support plate 8-1 and the two are fixedly connected together by bolt assemblies that pass through the corresponding mounting holes. The support plate 8-1 also has lugs 8-1a extending to the left or right at the front and rear side edges. The support plate 8-1 overlaps and is placed on the top of the crossbeam 1-1, and is fixedly connected to the crossbeam 1-1 by U-bolt assemblies 11 that cross the crossbeam 1-1 and pass through the mounting holes on the lugs 8-1a at both ends.

[0032] More preferably, the roller body 2-1 has an annular mounting groove 2-1a around the outer periphery of its central shaft 2-1b at its end. A bearing seat 2-4 sleeved on the end of the central shaft 2-1b is installed inside the annular mounting groove 2-1a. A transition flange 2-5 is fixedly installed on the outer ring of the bearing seat 2-4. The lower end of the side plate 2-3 has a through hole 2-3a penetrating the plate body and a mounting hole around the outer periphery of the through hole 2-3a. The lower end of the side plate 2-3 is attached to the corresponding transition flange 2-5, and the two are fixedly connected together by screws passing through the corresponding mounting holes. The hydraulic motor 6 has an output shaft at one end, which is also provided with a mounting plate 6-1 with a mounting hole. The hydraulic motor 6 is fixedly installed on the outer side surface of the side plate 2-3 by screws passing through the mounting plate 6-1 and the corresponding mounting holes of the side plate 2-3. The output shaft of the hydraulic motor 6 passes through the through hole 2-3a on the corresponding side plate 2-3 and is connected to the central shaft 2-1b of the corresponding roller body 2-1 for transmission.

[0033] The end of the crossbeam 2-6 is fixed with an end plate 2-6a having a mounting hole. The upper end of the side plate 2-3 has a mounting hole penetrating the plate body. The upper end of the side plate 2-3 is attached to the corresponding end plate 2-6a, and the two are fixedly connected together by bolt assemblies passing through the corresponding mounting holes.

[0034] More preferably, the end of the central shaft 2-1b of the roller body 2-1 and the output shaft of the hydraulic motor 6 are coaxially connected by a keyway.

[0035] More preferably, the oil inlet and oil return port of the hydraulic motor 6 are both located at its top, and it also includes a semi-shell cover 10. The semi-shell cover 10 is sleeved and installed on the lower side of the hydraulic motor 6 from bottom to top, and the opening end of the semi-shell cover 10 facing the corresponding side plate 2-3 has an outwardly extending flange 10-1. The flange 10-1 has a mounting hole, and the semi-shell cover 10 is fixedly installed on the lower outer side of the side plate 2-3 by screws passing through the corresponding mounting holes on both the flange 10-1 and the side plate 2-3.

[0036] More preferably, both ends of the roller body 2-1 on the pre-pressing roller assembly 2 and both ends of the roller body 2-1 on the pressing roller assembly 3 are provided with ridging discs 2-2 extending outward to the periphery.

[0037] More preferably, the top of the crossbeam 1-1, the top of the crossbeam 2-6 located on the pre-pressing roller assembly 2, and the top of the crossbeam 2-6 located on the pressing roller assembly 3 are all equipped with pedal assemblies 4.

[0038] This utility model discloses a hydraulic transmission pre-pressing, sowing, and pressing system for a seeder. The pre-pressing roller assembly and the pressing roller assembly are driven by independent hydraulic motors, meaning the corresponding rollers are directly connected to the hydraulic motors. The connection structure is simple, and installation and maintenance are convenient. Therefore, in the event of a failure of the hydraulic motor in the pre-pressing roller assembly or the pressing roller assembly, it is only necessary to disassemble the faulty hydraulic motor for repair or replacement. This helps to significantly reduce the downtime of the seeder due to failure of the drive system of the pre-pressing roller assembly or the pressing roller assembly, thereby improving the working efficiency of the seeder. The overall structure is ingeniously and reasonably designed, with high feasibility for manufacture and implementation, good stability, and strong economic practicality.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hydraulic transmission pre-compacting, sowing, and compacting system for a seeder, characterized in that, The device includes a sowing assembly (1), which has a pre-pressing roller assembly (2) on its front side and a corresponding pressing roller assembly (3) on its rear side. The sowing assembly (1) includes a horizontally placed beam 1 (1-1), on which several downwardly extending sowing units (1-2) are spaced along the length direction. The pre-pressing roller assembly (2) includes a horizontally placed beam 2 (2-6) and a roller body (2-1), with the beam 2 (2-6) located above the rear side of the roller body (2-1). The left and right ends of the beam 2 (2-6) are fixedly connected to the left and right ends of the roller body (2-1) through a side plate (2-3) to form a quadrilateral frame structure. The pressing roller assembly (3) and the pre-pressing roller assembly (2) are related to each other. The seeding assembly (1) described above has a mirror-symmetric structure and also includes two vertical plate welded parts (5). The left end of the first crossbeam (1-1), the left end of the second crossbeam (2-6) on the pre-pressing roller assembly (2), and the left end of the second crossbeam (2-6) on the pressing roller assembly (3) are all fixedly installed on one of the vertical plate welded parts (5). The right end of the first crossbeam (1-1), the right end of the second crossbeam (2-6) on the pre-pressing roller assembly (2), and the right end of the second crossbeam (2-6) on the pressing roller assembly (3) are all fixedly installed on the other vertical plate welded part (5). The pre-pressing roller assembly (2) and the pressing roller assembly (3) are each equipped with a hydraulic motor (6) for driving the corresponding roller body (2-1) to rotate.

2. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 1, characterized in that, The hydraulic motor (6) located on the pre-pressing roller assembly (2) and the hydraulic motor (6) located on the pressing roller assembly (3) are both located at the left or right end of the seeding assembly (1). A valve body (8) is also installed on the end of the crossbeam (1-1) near the hydraulic motor (6). One end face of the valve body (8) has an oil inlet and an oil return port. The other end face of the valve body (8) has two oil outlets and two oil return ports. The two oil outlets are connected to the oil inlet, and the two oil return ports are connected to the oil return port. One oil outlet is connected to the pre-pressing roller assembly (2) via an oil pipe (7). The oil inlet of the hydraulic motor (6) on the pre-pressing roller assembly (2) is connected, and one oil return port is connected to the oil return port of the hydraulic motor (6) on the pre-pressing roller assembly (2) through oil pipe one (7). Another oil outlet is connected to the oil inlet of the hydraulic motor (6) on the pressing roller assembly (3) through oil pipe one (7). Another oil return port is connected to the oil return port of the hydraulic motor (6) on the pressing roller assembly (3) through oil pipe one (7). The oil inlet one and oil return port one on the valve body (8) are respectively provided with oil pipe two (9) for connecting to the oil cylinder.

3. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 2, characterized in that, The valve body (8) is equipped with an external hexagonal connector (12) for the oil inlet and return port 1, the two oil outlets and the two oil return ports 2, and the hydraulic motor (6) for the oil inlet and return port. Both ends of the external hexagonal connector (12) are provided with external thread sections. Both ends of the oil pipe 1 (7) and the oil pipe 2 (9) are respectively provided with locking nuts (13). One end of the oil pipe 1 (7) is screwed together with the external thread section of the corresponding external hexagonal connector (12) on the hydraulic motor (6) through the locking nut (13). The other end of the oil pipe 1 (7) or one end of the oil pipe 2 (9) is screwed together with the external thread section of the corresponding external hexagonal connector (12) on the valve body (8) through the locking nut (13).

4. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 3, characterized in that, It also includes a support plate (8-1) with mounting holes. The valve body (8) has mounting holes that pass through the corners of the upper and lower end faces. The valve body (8) is located on the top of the support plate (8-1) and the two are fixedly connected together by bolt assemblies that pass through the corresponding mounting holes. The support plate (8-1) also has lugs (8-1a) extending to the left or right at the front and rear side edges. The support plate (8-1) overlaps and is placed on the top of the first crossbeam (1-1). It is fixedly connected to the first crossbeam (1-1) by U-bolt assemblies (11) that cross the first crossbeam (1-1) and pass through the mounting holes on the lugs (8-1a) at both ends.

5. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 4, characterized in that, The roller body (2-1) has an annular mounting groove (2-1a) around the outer periphery of its central shaft (2-1b) at its end. A bearing seat (2-4) fitted onto the end of the central shaft (2-1b) is installed inside the annular mounting groove (2-1a). A transition flange (2-5) is fixedly installed on the outer ring of the bearing seat (2-4). The lower end of the side plate (2-3) has a through hole (2-3a) penetrating the plate body and a mounting hole around the outer periphery of the through hole (2-3a). The lower end of the side plate (2-3) fits against the corresponding transition flange. (2-5) and the two are fixedly connected together by screws passing through the corresponding mounting holes. The hydraulic motor (6) has an output shaft at one end and a mounting plate (6-1) with mounting holes. The hydraulic motor (6) is fixedly mounted on the outer side surface of the side plate (2-3) by screws passing through the mounting plate (6-1) and the corresponding mounting holes of the side plate (2-3). The output shaft of the hydraulic motor (6) passes through the through hole (2-3a) on the corresponding side plate (2-3) and is connected to the central shaft (2-1b) of the corresponding roller body (2-1) for transmission. The end of the second crossbeam (2-6) is fixed with an end plate (2-6a) having a mounting hole. The upper end of the side plate (2-3) has a mounting hole that penetrates the plate body. The upper end of the side plate (2-3) is attached to the corresponding end plate (2-6a), and the two are fixedly connected together by bolt assemblies that pass through the corresponding mounting holes.

6. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 5, characterized in that, The central shaft (2-1b) end of the roller body (2-1) and the output shaft of the hydraulic motor (6) are coaxially connected by keyway.

7. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 6, characterized in that, The hydraulic motor (6) has an oil inlet and an oil return port located at its top, and also includes a semi-shell cover (10). The semi-shell cover (10) is fitted onto the lower side of the hydraulic motor (6) from bottom to top, and the semi-shell cover (10) has an outwardly extending flange (10-1) at the opening end facing the corresponding side plate (2-3). The flange (10-1) has mounting holes, and the semi-shell cover (10) is fixedly installed on the lower outer side of the side plate (2-3) by screws passing through the corresponding mounting holes on both the flange (10-1) and the side plate (2-3).

8. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in claim 7, characterized in that, Both ends of the roller body (2-1) on the pre-pressing roller assembly (2) and both ends of the roller body (2-1) on the pressing roller assembly (3) are provided with ridge-forming discs (2-2) extending outward.

9. The hydraulic transmission pre-compacting, sowing, and compacting system for a seeder as described in any one of claims 1 to 8, characterized in that, A pedal assembly (4) is installed on the top of the first crossbeam (1-1), the top of the second crossbeam (2-6) on the pre-pressing roller assembly (2), and the top of the second crossbeam (2-6) on the pressing roller assembly (3).

Images