A grain suction machine convenient for space movement

Abstract

The utility model discloses a kind of grain suction machines facilitating space movement, including mobile car, diesel engine, air suction machine, grain storage tank and fixed seat set on mobile car, diesel engine is connected with air suction machine transmission, to drive air suction machine to extract air to form negative pressure, and further realize the suction of grain, air suction machine is communicated with the air inlet end of grain storage tank by first connecting pipe, and the feed end of grain storage tank is connected with the rotary telescopic grain suction device for suction grain by second connecting pipe, and rotary telescopic grain suction device can rotate around fixed seat and carry out length telescopic adjustment, to adapt to different position grain suction scene, mobile car bottom side is also provided with inclined conveyor belt for conveying grain, and the bottom discharge port of grain storage tank is connected with the feed end of conveyor belt, for the conveying effect of grain, advantage: with the aid of mobile car structure equipment can be quickly transferred to different sites, such as grain depot, warehouse, field, diesel engine power, break out external power grid bondage, adapt external no power supply operation scene.

Description

Technical Field

[0001] This utility model relates to the field of grain suction machine technology, and in particular to a grain suction machine that is easy to move in space. Background Technology

[0002] In the grain production, storage, and transportation process, loading, unloading, and transfer of grain are key processes. Traditional grain transportation relies heavily on manual handling or ordinary machinery (such as loaders), which not only results in low efficiency and high labor intensity but also easily leads to losses due to grain scattering. Especially in scenarios where grain is neatly stored in grain depots or warehouses, or where grain is temporarily piled up in the field after harvest, efficient grain suction and conveying equipment is needed. Grain suction machines have thus become commonly used equipment in this field. Existing grain suction machines are mainly divided into fixed types. Fixed grain suction machines achieve grain suction by being fixedly installed in a specific location, which has the limitation of poor site adaptability and cannot flexibly adjust the working point according to the location of the grain pile. If it is necessary to transfer grain piles in different areas, multiple disassembly and reassembly are required, which is cumbersome and time-consuming. It is especially unsuitable for operation scenarios such as temporary grain piles in the field or scattered grain piles in multiple areas. Utility Model Content

[0003] The purpose of this utility model is to adjust the working position by pushing or pulling the frame, which solves two problems: First, it addresses the limitation of power supply. Most mobile grain suction machines use motor-driven exhaust fans, which require external power grid supply and cannot be used in the field or temporary working areas without fixed power supply facilities. Second, it addresses the lack of flexibility of the grain suction components. The grain suction pipes of existing equipment are mostly of fixed length or manually telescopic structure, with limited rotation angle. If the grain pile is far from the equipment, the grain suction pipe needs to be manually stretched, and it is difficult to ensure the stability of the pipe arm.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A mobile grain suction machine includes a mobile vehicle, a diesel engine, an exhaust fan, a grain storage tank, and a fixed base mounted on the mobile vehicle. The diesel engine is driven by the exhaust fan to draw in air and create negative pressure, thereby absorbing the grain. The exhaust fan is connected to the air inlet of the grain storage tank via a first connecting pipe. The feed end of the grain storage tank is connected to a rotary telescopic grain suction device for absorbing grain via a second connecting pipe. The rotary telescopic grain suction device can rotate around the fixed base and adjust its length to adapt to different grain suction scenarios. An inclined conveyor belt for transporting grain is also provided on one side of the bottom of the mobile vehicle. The feed end connects to the bottom discharge port of the grain storage tank for grain conveying. Utilizing a mobile vehicle structure, the entire grain suction machine can be moved flexibly, quickly adapting to different work sites such as grain depots, warehouses, and fields. No fixed installation is required, reducing site limitations. A diesel engine drives the exhaust fan, eliminating the need for an external power grid compared to electric motor drive, making it particularly suitable for work scenarios without power supply. Stable power output and strong endurance ensure continuous and efficient negative pressure grain suction. An inclined conveyor belt connects to the bottom of the grain storage tank, promptly conveying the collected grain out of the tank, preventing shutdown due to a full tank. This achieves continuous "grain suction-grain conveying" operation, reducing manual handling and lowering labor costs.

[0006] Furthermore, the rotary telescopic grain suction device includes a rotary drive assembly, on which a rotary bearing is mounted. A telescopic tube arm is connected to the rotary bearing. A sliding support frame is mounted at the lower end of the telescopic tube arm, and a hydraulic cylinder is connected to the lower end of the sliding support frame. A suction head is mounted at the output end of the telescopic tube arm. The sliding support frame supports and limits the telescopic tube arm, preventing it from swaying or sagging due to its own weight or negative pressure during telescopic extension or grain suction. This ensures the stability of the tube arm's extension trajectory and prevents the suction head from deviating from its grain suction position. Using a hydraulic cylinder as the telescopic drive component provides greater driving force and smoother output compared to pneumatic cylinders or motor screw drives. It can adapt to telescopic tube arms of different lengths, and even if grain is sucked into the tube arm, increasing the load, precise extension and retraction can still be achieved, avoiding jamming due to insufficient driving force.

[0007] Furthermore, the rotary drive assembly includes a rotary motor, a first rotary gear driven by the rotary motor, and a second rotary gear meshing with the first rotary gear. The second rotary gear is connected to the rotary telescopic grain suction device. The transmission method of rotary motor driving gear meshing provides stable and highly controllable motor power output. Combined with the meshing of the first and second rotary gears, the transmission efficiency is high and the transmission ratio is precise, enabling accurate control of the rotation angle of the rotary telescopic grain suction device.

[0008] Furthermore, the rotary drive assembly is used to drive the rotary telescopic grain suction device to perform circular motion to meet the grain suction work in different directions. The rotary drive assembly drives the circular motion so that the grain suction device can cover the annular working range centered on the fixed seat. It can suction grain piles in different directions without frequently moving the mobile vehicle (such as suctioning grain around the grain pile), reducing the number of times the whole machine needs to be adjusted. It is especially suitable for working scenarios with large areas and irregular grain piles.

[0009] Furthermore, the output end of the hydraulic cylinder is connected to the sliding support frame, and the base is fixedly connected to the bottom of the rotary bearing, which is used to drive the sliding support frame to synchronously drive the length adjustment of the telescopic arm to meet the grain suction work at different distances.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. A diesel engine-driven exhaust fan ensures continuous power output for negative pressure grain suction, avoiding power interruptions due to grid dependence. Combined with the seamless design of the grain storage tank and inclined conveyor belt, grain is directly transported after suction, eliminating the problem of downtime when the storage tank is full. Furthermore, the rotating telescopic grain suction device allows for flexible adjustment of orientation and distance, covering different grain pile locations without frequent machine relocation, reducing equipment adjustment time. These three elements work together to seamlessly connect the entire process of grain suction, storage, and transport, significantly reducing downtime and position adjustment losses compared to traditional equipment, resulting in a significant improvement in overall operational efficiency.

[0012] 2. Utilizing a mobile vehicle structure, the equipment can be quickly moved to different locations such as grain depots, warehouses, and fields, eliminating the need for fixed installation. The diesel engine power frees it from the constraints of an external power grid, making it suitable for field operations without electricity. The rotating and telescopic grain suction device covers a circular area through circumferential rotation and adapts to different distances through hydraulic telescopic adjustment, handling various grain pile shapes, including regular grain piles and large irregular grain piles. The overall design breaks through the limitations of traditional grain suction machines—"fixed site, limited power, and narrow coverage"—achieving full-scene adaptability from indoors to outdoors, and from regular to complex grain piles.

[0013] 3. The sliding support frame provides support and limit for the telescopic boom, combined with the smooth and precise characteristics of hydraulic drive extension, reducing the workload of manual adjustment of the boom and avoiding operational errors caused by boom swaying or deviation; the inclined conveyor belt replaces manual transfer, directly reducing labor costs; the high stability of the gear meshing transmission and the long endurance of the diesel engine reduce equipment maintenance frequency and power replenishment costs. By comprehensively lowering the barriers to entry and costs in terms of ease of operation, labor costs, and maintenance costs, the equipment can be more easily applied to grain processing scenarios of different scales. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the rotary telescopic grain suction device of this utility model;

[0016] Figure 3 This is a schematic diagram of the rotary drive assembly of this utility model.

[0017] In the diagram, 1-mobile vehicle, 2-diesel engine, 3-exhaust fan, 4-first connecting pipe, 5-grain storage tank, 6-second connecting pipe, 7-fixed base, 8-rotary telescopic grain suction device, 9-inclined conveyor belt, 81-rotary drive assembly, 82-rotary bearing, 83-telescopic pipe arm, 84-sliding support frame, 85-hydraulic cylinder, 86-suction head, 811-rotating motor, 812-first rotating gear, 813-second rotating gear. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Combination Figure 1-3 As shown, a grain suction machine that is easy to move in space includes a mobile vehicle 1, a diesel engine 2, an exhaust fan 3, a grain storage tank 5, and a fixed base 7 mounted on the mobile vehicle 1. The diesel engine 2 is driven by the exhaust fan 3 to draw in air and create negative pressure, thereby achieving grain suction. The exhaust fan 3 is connected to the air inlet of the grain storage tank 5 through a first connecting pipe 4. The feed end of the grain storage tank 5 is connected to a rotary telescopic grain suction device 8 for suctioning grain through a second connecting pipe 6. The rotary telescopic grain suction device 8 can rotate around the fixed base 7 and adjust its length to adapt to different grain suction scenarios. An inclined conveyor belt 9 for transporting grain is also provided on one side of the bottom of the mobile vehicle 1. 9. The feed end is connected to the bottom discharge port of the grain storage tank 5 for grain conveying. With the help of the mobile vehicle structure, the entire grain suction machine can be moved flexibly, which can be quickly adapted to different working sites such as grain depots, warehouses, and fields. No fixed installation is required, reducing site restrictions. The exhaust fan is driven by a diesel engine. Compared with electric motor drive, it does not rely on an external power grid, which is especially suitable for working scenarios without power supply facilities. The power output is stable and the endurance is strong, ensuring continuous and efficient negative pressure grain suction. The inclined conveyor belt is connected to the bottom of the grain storage tank, which can promptly transport the grain collected in the grain storage tank to the outside, avoiding the grain storage tank from stopping due to full grain. It realizes continuous "grain suction-grain conveying" operation, reduces manual transfer links, and reduces labor costs.

[0020] The rotary telescopic grain suction device 8 includes a rotary drive assembly 81, a rotary bearing 82 mounted on the rotary drive assembly 81, a telescopic tube arm 83 connected to the rotary bearing 82, a sliding support frame 84 mounted at the lower end of the telescopic tube arm 83, a hydraulic cylinder 85 connected to the lower end of the sliding support frame 84, and a suction head 86 mounted at the output end of the telescopic tube arm 83. The sliding support frame provides support and limits to the telescopic tube arm, preventing it from swaying or sagging due to its own weight or negative pressure during telescopic extension or grain suction, ensuring stable extension and contraction trajectory, and preventing the suction head from deviating from its grain suction position. Using a hydraulic cylinder as the telescopic drive component provides greater driving force and smoother output compared to pneumatic cylinders or motor screw drives. It can adapt to telescopic tube arms of different lengths, and even if grain is sucked into the tube arm, increasing the load, precise extension and contraction can still be achieved, avoiding jamming due to insufficient driving force. The rotary drive assembly 81 includes a rotary motor 811, a first rotary gear 812 driven by the rotary motor 811, and a second gear meshing with the first rotary gear 812. The rotating gear 813 and the second rotating gear 813 are connected to the rotating telescopic grain suction device 8. The transmission method is driven by a rotating motor and gear meshing. The motor power output is stable and highly controllable. With the "meshing of the first and second rotating gears", the transmission efficiency is high and the transmission ratio is precise, which can accurately control the rotation angle of the rotating telescopic grain suction device. The rotating drive component 81 is used to drive the rotating telescopic grain suction device 8 to perform circular motion to meet the grain suction work in different directions. The rotating drive component drives the circular motion, so that the grain suction device can cover the annular working range centered on the fixed seat. It can suction grain piles in different directions without frequent movement of the mobile vehicle (such as suctioning grain around the grain pile), reducing the number of times the whole machine is adjusted. It is especially suitable for the operation of large-area, irregular grain piles. The output end of the hydraulic cylinder 85 is connected to the sliding support frame 84. The base is fixedly connected to the bottom of the rotating bearing 82. It is used to drive the sliding support frame 84 to synchronously drive the length adjustment of the telescopic arm 83 to meet the grain suction work at different distances.

[0021] Working principle: Before operation, push the mobile vehicle 1 to the vicinity of the target grain pile, and the site adaptation can be completed without fixed installation. The diesel engine 2 on the mobile vehicle 1 is started, and the diesel engine 2 drives the exhaust fan 3 to operate via a transmission belt. After the exhaust fan 3 starts, it draws air at high speed, creating a negative pressure environment between itself and the grain storage tank 5. Since the exhaust fan 3 is connected to the air inlet of the grain storage tank 5 through the first connecting pipe 4, the inside of the grain storage tank 5 is synchronously formed with the air extraction action of the exhaust fan 3, providing the power basis for grain suction. According to the orientation and distance of the grain pile, the position of the rotary telescopic grain suction device 8 is adjusted by the rotary drive assembly 81 and the hydraulic cylinder 85. The rotary motor 811 in the rotary drive assembly 81 is started, and the rotary motor 811 drives the first rotary gear 812 to rotate. The first rotary gear 812 drives the second rotary gear 813 to rotate through meshing transmission. Since the second rotary gear 813 is connected to the rotary telescopic grain suction device 8 through transmission, and the entire device is connected to the fixed base 7 through the rotary bearing 82, the rotary telescopic grain suction device 8 is finally driven to perform a circular motion around the fixed base 7 until the suction head 86 is aligned with the orientation of the grain pile. The entire machine can cover the ring without moving the entire machine. Within the operating range, the hydraulic cylinder 85 is activated. The base of the hydraulic cylinder 85 is fixed to the bottom of the rotary bearing 82, and its output end is connected to the sliding support frame 84. When the hydraulic cylinder 85 extends or retracts, it pushes the sliding support frame 84 to move horizontally. Because the sliding support frame 84 is connected to the lower end of the telescopic arm 83, and the sliding support frame 84 provides support and limit for the telescopic arm 83, the movement of the sliding support frame 84 synchronously drives the telescopic arm 83 to perform multi-stage nested extension and retraction until the suction head is close to the grain pile, adapting to different distance suction needs. When the rotating extension... When the suction head of the grain suction device 8 is aligned with the grain pile and the grain storage tank 5 is kept under negative pressure, the grain pile enters the telescopic tube arm 83 through the suction head under the pressure difference between the external atmospheric pressure and the negative pressure inside the tank, and is then transported to the grain storage tank 5 through the second connecting pipe 6, thus completing the suction and temporary storage of the grain. As the grain in the grain storage tank 5 continues to accumulate, the grain falls from the discharge port at the bottom of the grain storage tank 5 into the feed end of the inclined conveyor belt 9 under its own gravity. The inclined conveyor belt 9 is started, and the conveyor belt transports the grain upward along the inclined direction to the target position through belt drive.

[0022] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0023] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A grain suction machine that is easy to move in space, comprising a mobile vehicle (1), a diesel engine (2), a blower (3), a grain storage tank (5), and a fixed base (7) mounted on the mobile vehicle (1), characterized in that: The diesel engine (2) is connected to the exhaust fan (3) to drive the exhaust fan (3) to draw air to form a negative pressure, thereby realizing the absorption of grain. The exhaust fan (3) is connected to the air inlet of the grain storage tank (5) through the first connecting pipe (4). The feed end of the grain storage tank (5) is connected to a rotary telescopic grain suction device (8) for absorbing grain through the second connecting pipe (6). The rotary telescopic grain suction device (8) can rotate around the fixed base (7) and adjust its length to adapt to different grain absorption scenarios. The bottom side of the mobile vehicle (1) is also provided with an inclined conveyor belt (9) for conveying grain. The feed end of the conveyor belt (9) is connected to the bottom outlet of the grain storage tank (5) for conveying grain.

2. The grain suction machine that is easy to move in space according to claim 1, characterized in that: The rotary telescopic grain suction device (8) includes a rotary drive assembly (81), a rotary bearing (82) is provided on the rotary drive assembly (81), a telescopic tube arm (83) is connected to the rotary bearing (82), a sliding support frame (84) is provided at the lower end of the telescopic tube arm (83), a hydraulic cylinder (85) is connected at the lower end of the sliding support frame (84), and a suction head (86) is provided at the output end of the telescopic tube arm (83).

3. The grain suction machine that is easy to move in space according to claim 2, characterized in that: The rotary drive assembly (81) includes a rotary motor (811), a first rotary gear (812) driven by the rotary motor (811), and a second rotary gear (813) meshing with the first rotary gear (812). The second rotary gear (813) is connected to the rotary telescopic grain suction device (8) in a transmission connection.

4. A grain suction machine that is easy to move in space according to claim 3, characterized in that: The rotary drive assembly (81) is used to drive the rotary telescopic grain suction device (8) to perform circular motion in order to meet the grain suction work in different directions.

5. A grain suction machine that is easy to move in space according to claim 4, characterized in that: The output end of the hydraulic cylinder (85) is connected to the sliding support frame (84), and the base is fixedly connected to the bottom of the rotary bearing (82) to drive the sliding support frame (84) to synchronously drive the length adjustment of the telescopic arm (83) to meet the grain suction work at different distances.

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