A four-wheel drive self-propelled forage harvester

Abstract

The utility model discloses a four -wheel drive's self -propelled green storage feed harvester relates to feed harvester technical field, including frame, the front of frame is equipped with the harvesting assembly through the connecting piece, the frame is equipped with the slitting machine behind harvesting assembly, the top of frame is provided with the liquid feeding unit for spraying liquid to the slitting machine, the bottom of frame four corners is provided with drive assembly respectively. The utility model discloses through setting drive assembly, in green storage harvesting common wet and slippery muddy field, and traditional tire is extremely easy to slip and idle. And the design of auxiliary wheel and its boss, by providing lateral adhesion and resistance, improve this situation, make the harvester can keep advancing under the adverse working condition, guarantee the continuity and farm time of operation, prevent the machine from side slipping or accidental rollover when working on the slope or uneven ground simultaneously, improve the stability and safety of the whole machine operation.

Description

Technical Field

[0001] This utility model relates to the field of forage harvester technology, specifically a four-wheel drive self-propelled silage harvester. Background Technology

[0002] Silage is an important feed source for ruminants, and its quality directly affects livestock health and the economic benefits of the livestock industry. High-quality silage requires uniform chopping length and moderate density, and the addition of appropriate amounts of fermentation bacteria or nutrient solution during fermentation to optimize the fermentation process and improve feed quality.

[0003] An existing patent (authorization announcement number: CN213548417U) discloses a silage harvester. The key technical points of the solution are: unscrewing two nuts and then pulling out the screw from the screw hole, which separates the blade from the bucket, thereby disassembling and replacing the cutter head so that the blade thickness is suitable for different crops. Moving the mounting box backward, the slider and the slide groove are slidably connected. Since the cross-sectional shape of the slider and the slide groove are both inverted T-shaped, the mounting box can be prevented from moving up and down during the use of the machine, thereby achieving the effect of stabilizing the cutter head.

[0004] However, the above-mentioned technical solutions still have certain drawbacks. Metal tracks have high running resistance, slow maximum speed, low efficiency in field transfer and road transport, usually requiring trailers. Steering relies on the differential speed of the two tracks, resulting in a large turning radius and insufficient maneuverability. They also require a high level of operational skill. Therefore, a four-wheel drive self-propelled silage harvester is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a four-wheel drive self-propelled silage harvester to solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A four-wheel drive self-propelled silage harvester includes a frame, a harvesting assembly is mounted on the front of the frame via a connector, a slitting machine is mounted on the rear of the harvesting assembly, a liquid delivery assembly for spraying liquid into the slitting machine is provided on the top of the frame, and drive assemblies are respectively provided at the four corners of the bottom of the frame. The harvesting assembly includes a mounting frame, on which a rotatable collecting roller and a cutter for cutting crop roots and stems are mounted, and a rotating shaft is located at the center of the collecting roller. The slitting machine includes a support frame. Along the material's forward direction, the support frame is sequentially equipped with a rotating cutter head for initial material crushing and a pusher shovel for collecting the crushed material after initial crushing.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: As a further embodiment of this utility model, the bracket also includes a cleaning head for cleaning the rotating blade head.

[0008] As a further embodiment of this utility model: the liquid delivery component includes a liquid inlet, a liquid tank connected to the liquid inlet, and a number of nozzles distributed above the material channel of the slitting machine.

[0009] As a further embodiment of this utility model: the drive assembly includes a housing fixed to the bottom of the frame, a drive motor fixedly installed on the side of the housing, and a walking wheel directly driven by the drive motor.

[0010] As a further improvement of this utility model, an auxiliary wheel is provided on the side of the walking wheel.

[0011] As a further improvement of this utility model, the surface of the auxiliary wheel is provided with multiple sets of protrusions.

[0012] As a further embodiment of this utility model, it also includes a control system, which includes a vehicle speed sensor and a controller; the vehicle speed sensor is mounted on the frame to detect the harvester's travel speed, and the controller is electrically connected to the vehicle speed sensor and the power input component of the slitting machine.

[0013] As a further improvement of this invention, the controller is also electrically connected to the pumping mechanism of the liquid delivery assembly.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model addresses the issue of traditional tires easily slipping and spinning in wet, muddy fields commonly used for silage harvesting by incorporating a drive assembly. The auxiliary wheel and its protruding design improve this situation by providing lateral traction and resistance, enabling the harvester to maintain forward movement even in harsh conditions. This ensures continuous operation and timely harvesting, while effectively preventing sideslip or accidental rollover when operating on slopes or uneven ground, thus enhancing the overall stability and safety of the machine.

[0015] 2. By setting up a liquid delivery component, this utility model addresses the significant nitrogen loss in the soil after silage harvest. Topdressing with nitrogen fertilizer can promote the growth of subsequent crops or the germination of green manure, thus providing a foundation for sustainable land development. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the slitting machine of this utility model; Figure 3This is a schematic diagram of the harvesting component of this utility model; Figure 4 This is a schematic diagram of the structure of the drive component of this utility model; Figure 5 This is a schematic diagram of the liquid delivery component of this utility model.

[0017] Figure label annotations: 1. Frame; 2. Connector; 3. Liquid delivery assembly; 4. Slitting machine; 5. Drive assembly; 6. Harvesting assembly; 31. Liquid inlet; 32. Liquid tank; 33. Nozzle; 41. Support; 42. Cleaning head; 43. Rotating the cutting head; 44. Pushing shovel; 51. Housing; 52. Drive motor; 53. Wheels; 54. Auxiliary wheels; 61. Mounting frame; 62. Cutter; 63. Rotating shaft; 64. Collecting roller. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] In one embodiment, such as Figures 1-5 As shown, a four-wheel drive self-propelled silage harvester includes a frame 1. A harvesting assembly 6 is installed at the front of the frame 1 via a connector 2. A slitting machine 4 is installed behind the harvesting assembly 6 on the frame 1. A liquid delivery assembly 3 for spraying liquid into the slitting machine 4 is provided at the top of the frame 1. Drive assemblies 5 are respectively provided at the four corners of the bottom of the frame 1. In this embodiment, the drive components 5 located at the four corners of the bottom of the frame 1 provide power to the whole machine, enabling the harvester to move stably in the field. The four-wheel drive ensures good traction and passability, and can work normally even in muddy or uneven fields. The slitting machine 4 performs preliminary and rough cutting of the crop, breaking the long poles into shorter sections. At the same time, the harvesting component 6 collects the slitting crop. Meanwhile, the liquid delivery component 3 located at the top of the frame 1 starts to work, and the liquid is evenly sprayed onto the material in the form of mist or fine stream.

[0020] In one embodiment, such as Figure 2As shown, the slitting machine 4 includes a support 41. Along the material's forward direction, the support 41 contains a rotating cutter head 43 for initial crushing of the material and a pusher shovel 44 for collecting the crushed material. The support 41 also includes a cleaning cutter head 42 for cleaning the rotating cutter head 43. The high-speed rotating cutter head cuts the crop, while the cleaning cutter head 42 remains stationary. The gaps between the multiple sets of rotating cutter heads 43 pass through the cleaning cutter head 42. When the rotating cutter head 43 rotates to a position where it contacts the cleaning cutter head 42, it is scraped or cut by this fixed cutter head to prevent the rotating cutter head 43 from getting tangled. At this time, the pusher shovel 44 collects a portion of the crop to prevent accumulation.

[0021] In one embodiment, such as Figure 3 As shown, the harvesting assembly 6 includes a mounting frame 61, on which a rotatable collecting roller 64 and a cutter 62 for cutting crop roots and stems are mounted. A rotating shaft 63 is located in the middle of the collecting roller 64. When the harvester moves forward, the collecting roller 64 rotates under hydraulic or mechanical transmission, causing the rotating shaft 63 to rotate. At the same time, the spring teeth or baffles on the collecting roller 64 contact the standing silage crops, pushing them backward and downward, causing them to tilt towards the cutter 62 and be neatly fed into the cutting area, thus compensating for the crops missed by the slitting machine 4.

[0022] In one embodiment, such as Figure 5 As shown, the liquid delivery component 3 includes a liquid inlet 31, a liquid tank 32 connected to the liquid inlet 31, and several nozzles 33 distributed above the material channel of the slitting machine 4. The liquid fertilizer in the liquid tank 32 is transported out through the internal pipeline under the action of the pump. The pipeline guides the liquid to the several nozzles 33 distributed above the material channel of the slitting machine 4. The nozzles 33 spray out the liquid, covering the bottom surface of the entire frame 1. The liquid fertilizer is evenly attached to the harvested land. After silage harvesting, the soil nitrogen element loss is huge. Timely application of nitrogen fertilizer can promote the growth of subsequent crops or the germination of green manure.

[0023] In one embodiment, such as Figure 4As shown, the drive assembly 5 includes a housing 51 fixed to the bottom of the frame 1, a drive motor 52 fixedly mounted on the side of the housing 51, and a traveling wheel 53 directly driven by the drive motor 52. An auxiliary wheel 54 is provided on the side of the traveling wheel 53, and the surface of the auxiliary wheel 54 is provided with multiple sets of protrusions. The torque generated by the motor is directly transmitted to the traveling wheel 53 through its output shaft. The auxiliary wheel 54 is located on the side of the traveling wheel 53. When the main traveling wheel 53 is about to slip on muddy or slippery ground, the auxiliary wheel 54 will contact the ridge, ditch wall, or solid soil. The multiple sets of protrusions on its wheel surface can effectively bite and grip these side supports, generating lateral resistance, thereby inhibiting the slippage of the traveling wheel 53 and helping the machine get out of trouble. On uneven terrain, the auxiliary wheel 54 can prevent the machine from tilting excessively or swaying violently in potholes, improving driving stability. It can also provide some lateral support when turning, as traditional tires are prone to slipping and spinning. The auxiliary wheel 54 and its bump design improve this situation by providing lateral adhesion and resistance.

[0024] In one embodiment, such as Figure 1 As shown, the system also includes a control system, which comprises a vehicle speed sensor and a controller. The vehicle speed sensor is mounted on the frame 1 to detect the harvester's travel speed. The controller is electrically connected to the vehicle speed sensor and the power input component of the slitting machine 4, and is also electrically connected to the pumping mechanism of the liquid delivery assembly 3. The vehicle speed sensor detects the actual travel speed of the harvester in real time and converts this speed signal into an electrical signal, which is then sent to the controller. The controller has a preset control algorithm or program. The core logic of this program is: the processing capacity of the harvesting assembly 6 and the spraying volume of the liquid delivery assembly are matched with the travel speed of the harvester, and the controller sends instructions to the pumping mechanism of the liquid delivery assembly 3. When the vehicle speed increases, the controller instructs the pumping mechanism to increase the flow rate to ensure that enough liquid fertilizer is evenly sprayed onto the land; when the vehicle speed decreases, the flow rate is reduced accordingly to avoid excessive fertilizer application. Furthermore, the controller receives sensor signals and, when it detects that a wheel is slipping, it can automatically reduce the driving force of that wheel and distribute more power to the wheels with good traction, thus realizing a simple electronic differential lock function and greatly improving passability.

[0025] The above embodiment discloses a four-wheel drive self-propelled silage harvester. The drive assembly 5 receives commands and provides strong traction to the entire machine, enabling stable movement in complex fields. The front slitting machine 4 performs initial cutting of the crop. Subsequently, the collecting roller 64 in the harvesting assembly 6 pushes the still-standing crop backward and stabilizes it. The cutter 62 then cuts the roots and stems. The liquefaction assembly 3 sprays fermentation liquid and other liquids in a mist form onto the harvested land through distributed nozzles 33. The control system monitors the travel speed in real time. Based on the vehicle speed, it automatically adjusts the rotation speed of the walking wheels 53 and the pump flow rate of the liquefaction assembly 3, forming an intelligent closed loop.

[0026] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A four-wheel drive self-propelled silage harvester, comprising a frame (1), characterized in that, The front of the frame (1) is equipped with a harvesting assembly (6) via a connector (2). A slitting machine (4) is installed behind the harvesting assembly (6) on the frame (1). A liquid delivery assembly (3) for spraying liquid into the slitting machine (4) is provided on the top of the frame (1). A drive assembly (5) is provided at each of the four bottom corners of the frame (1). The harvesting assembly (6) includes a mounting frame (61), on which a rotatable collecting roller (64) and a cutter (62) for cutting crop roots and stems are provided. A rotating shaft (63) is provided at the middle of the collecting roller (64). The slitting machine (4) includes a support (41) along the material forward direction. The support (41) is provided with a rotating cutter head (43) for the initial crushing of the material and a pusher shovel (44) for collecting the crushed material after the initial crushing.

2. The four-wheel drive self-propelled silage harvester according to claim 1, characterized in that, The bracket (41) also includes a cleaning head (42) for cleaning the rotating head (43).

3. A four-wheel drive self-propelled silage harvester according to claim 1, characterized in that, The liquid delivery assembly (3) includes a liquid inlet (31), a liquid tank (32) connected to the liquid inlet (31), and a number of nozzles (33) distributed above the material channel of the slitting machine (4).

4. A four-wheel drive self-propelled silage harvester according to claim 1, characterized in that, The drive assembly (5) includes a housing (51) fixed to the bottom of the frame (1), a drive motor (52) fixedly installed on the side of the housing (51), and a walking wheel (53) directly driven by the drive motor (52).

5. A four-wheel drive self-propelled silage harvester according to claim 4, characterized in that, The walking wheel (53) is provided with an auxiliary wheel (54) on its side.

6. A four-wheel drive self-propelled silage harvester according to claim 5, characterized in that, The auxiliary wheel (54) has multiple sets of protrusions on its surface.

7. A four-wheel drive self-propelled silage harvester according to claim 1, characterized in that, It also includes a control system, which includes a vehicle speed sensor and a controller; the vehicle speed sensor is mounted on the frame (1) to detect the speed of the harvester, and the controller is electrically connected to the vehicle speed sensor and the power input component of the slitting machine (4).

8. A four-wheel drive self-propelled silage harvester according to claim 7, characterized in that, The controller is also electrically connected to the liquid delivery assembly (3).

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