Grain sweeper

Abstract

The utility model relates to a grain sweeper and belongs to the field of bulk material storage devices. A grain sweeper comprises a sweeper body, a sweeping device and a storage structure are arranged on the sweeper body, the storage structure is a storage hopper, and the storage hopper is provided with an opening capable of being arranged towards the sweeping device; an air outlet device is arranged at the bottom of the vehicle body, an air outlet of the air outlet device is transversely arranged, and an air outlet path is located on the rear side of the sweeping device and partially coincides with a conveying path of grains swept by the sweeping device. Through the arrangement of the air outlet device, grains which come out of the sweeping device and need to enter the storage hopper can pass through an air outlet path of the air outlet device, and dust and impurities can be blown away by the air outlet device due to the fact that the weight of the dust and the impurities is lighter than that of the grains; therefore, the problem that in the prior art, due to the fact that grains on the ground are collected in a suction mode, dust and other light sundries on the ground are collected in a vehicle together, and the number of the dust and other light sundries in the grains is large is solved.

Description

Technical Field

[0001] The utility model relates to a grain cleaning vehicle and belongs to the field of storage devices for bulk materials. Background Art

[0002] In the process of grain production and collection, grain needs to be dried, and after drying, it needs to be cleaned, collected, and stored in a centralized manner. In the traditional method, manual cleaning is required, but manual cleaning is labor-intensive and inefficient, so more and more vehicles are used to clean and collect grain. For example, a Chinese invention patent application with an application publication date of December 12, 2023 and an application publication number of CN117215309A discloses a positioning and mapping method and a positioning and mapping device for an unmanned vehicle grain depot cleaning system. The unmanned vehicle includes a sweeping device located in front of the bottom of the vehicle, and a storage bin is provided at the rear of the vehicle. When in use, the sweeping device at the bottom of the vehicle sweeps the grain to the middle part, and then facilitates the grain to enter the storage bin, but how the grain enters the storage bin is not disclosed.

[0003] Usually, the collection of food and other materials on the ground is carried out by suction. For example, a Chinese utility model patent with an authorization announcement date of March 2, 2016 and an authorization announcement number of CN205062725U discloses a piled material scattering and suction device for a pure suction road sweeper. The device has a disc brush located on the front side, a suction port located on the rear side of the disc brush, and a scattering roller is also provided at the suction port. During the cleaning operation, the disc brush first rotates to sweep the material to the middle position, and then it is scattered by the scattering roller, and finally sucked into the car by the suction port.

[0004] However, in the above technical solution, since the grain has a certain weight, if the grain is to be sucked, the suction force cannot be too small; the grain is located on the ground, and if the suction force is large, the dust on the ground and other light debris such as soil particles, paper, plastic, etc. that are lighter than the grain will also be sucked into the car, causing the problem of more dust and other impurities in the grain. Utility Model Content

[0005] The utility model aims to provide a grain cleaning vehicle for solving the problem that the grain on the ground is collected by suction in the prior art, so that light debris such as dust on the ground is collected in the vehicle together, resulting in a large amount of light debris such as dust in the grain.

[0006] In order to achieve the above purpose, the grain cleaning vehicle in the utility model adopts the following technical solutions:

[0007] A grain cleaning vehicle, comprising a vehicle body, on which there is a sweeping device for sweeping the grain on the ground and a storage structure for storing the swept grain. The storage structure is a storage hopper, which has an opening that can be arranged towards the sweeping device. The storage hopper is located behind the sweeping device and is arranged at a front-back interval with the sweeping device. The storage hopper has a grain receiving state in which the opening fits to the ground to receive the grain swept by the sweeping device and a traveling state in which the opening rises for the vehicle to drive normally; an air outlet device is arranged at the bottom of the vehicle body. The air outlet of the air outlet device is arranged horizontally, and the air outlet path is located at the rear side of the sweeping device and has an overlapping part with the transmission path of the grain swept by the sweeping device.

[0008] Further, the vehicle body includes a left side wall and a right side wall, and the air outlet device is installed on the inner side surface of one of the left and right side walls.

[0009] Further, the air outlet device is a centrifugal fan, and the orientations of the air outlet and the air inlet of the centrifugal fan are perpendicular to each other.

[0010] Further, the air inlet of the centrifugal fan is arranged towards the rear, and the air inlet of the centrifugal fan and the opening of the storage hopper are arranged at an interval in the width direction of the grain cleaning vehicle.

[0011] Further, the storage hopper is hinged to the vehicle body, and a power mechanism for driving the storage hopper to rotate around the hinge axis with the vehicle body is further arranged between the storage hopper and the vehicle body.

[0012] Further, the power mechanism is a linear motion mechanism, and both ends of the linear motion mechanism are respectively hinged to the vehicle body and the storage hopper.

[0013] Further, the vehicle body includes a vehicle frame and a mounting rod connected to the top of the vehicle frame. The mounting rod extends downward from top to bottom, and one end of the linear motion mechanism is hinged to the mounting rod.

[0014] Further, the mounting rod includes a bent section and vertical sections vertically extending at both ends of the bent section. The bent section extends obliquely backward so that the vertical section below the bent section is arranged close to the rear side wall of the vehicle body.

[0015] Further, the storage hopper includes a bottom plate, a left side plate, a right side plate and a rear side plate perpendicular to the bottom plate. The opening is jointly formed by the bottom plate, the left side plate and the front ends of the right side plate.

[0016] Further, a cover plate is detachably connected to the vehicle body side wall facing the air outlet of the air outlet device.

[0017] The beneficial effects of the grain cleaning vehicle in the present utility model are as follows: The present utility model pioneerly proposes a grain cleaning vehicle. By setting a sweeping device, it is convenient to concentrate the grains for collection, and by setting a storage structure, it is convenient to concentrate the grains on the ground onto the grain cleaning vehicle; the storage structure is a storage hopper with an opening, which is convenient for the grains swept by the sweeping device to enter the storage hopper; the grains cleaned by the sweeping device have a certain initial velocity, and at this time, even if the storage hopper and the sweeping device are arranged at intervals, the grains can still enter the storage hopper; when the opening of the storage hopper is attached to the ground, the storage hopper is convenient for receiving the grains, and when the opening of the storage hopper rises, it is convenient for the vehicle to move forward; through the setting of the air outlet device, and the air outlet path of the air outlet device is located behind the sweeping device and has an overlapping part with the transmission path of the grains swept by the sweeping device, then the grains that need to enter the storage hopper from the sweeping device will pass through the air outlet path of the air outlet device, and the dust and impurities swept out by the sweeping device will also pass through the air outlet path. Since the weight of the dust and impurities is relatively lighter than that of the grains, they can be blown away by the air outlet device, which is convenient for screening the dust during the process of collecting grains, thus solving the problem in the prior art that when collecting the grains on the ground by suction, the light impurities such as dust on the ground will be collected in the vehicle together, resulting in more light impurities such as dust in the grains. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the grain cleaning vehicle in the present utility model;

[0019] Figure 2 It is a sectional view (the section is along the front - rear direction) of an embodiment of the grain cleaning vehicle in the present utility model;

[0020] Figure 3 It is a sectional view (the section is along the width direction) of an embodiment of the grain cleaning vehicle in the present utility model;

[0021] Figure 4 It is a schematic structural diagram of the storage structure of an embodiment of the grain cleaning vehicle in the present utility model.

[0022] In the figure: 11, vehicle side wall; 12, vehicle top cover; 13, floor; 14, cover plate; 15, mounting rod; 21, first cleaning disc brush; 22, second cleaning disc brush; 3, centrifugal fan; 4, storage hopper; 41, bottom plate; 42, left side plate; 43, right side plate; 44, rear side plate; 5, hydraulic cylinder. Detailed Embodiment

[0023] The features and performance of the present utility model are further described in detail below in combination with the embodiments.

[0024] In the utility model, a sweeping device and a storage bucket are arranged at intervals along the front and rear at the bottom of the grain sweeper, and an air outlet device for blowing air between the sweeping device and the storage bucket is also provided between the sweeping device and the storage bucket, so that the grain and dust entering from the sweeping device into the storage bucket will pass through the wind belt formed by the air outlet device, then the lighter dust will be blown away, and only the heavier grain can enter the storage bucket along a predetermined route, thereby filtering the dust on the ground.

[0025] In the embodiment 1 of the grain cleaning vehicle of the present invention:

[0026] like Figure 1 As shown, the grain cleaning vehicle (hereinafter referred to as the vehicle) in this embodiment includes a vehicle body, which includes a floor 13, a vehicle side wall 11 and a vehicle roof 12, wherein a sweeping device for cleaning the grain on the ground is installed on the floor 13, and the sweeping device is composed of two groups of cleaning disc brushes. Specifically, the sweeping device includes four cleaning disc brushes, each of which is disc-shaped. During the rotation of the disc-shaped disc brush, the material located in the area covered by the disc brush will be driven to move. After cleaning the grain, the grain can be naturally collected in the middle and thrown backward. The four cleaning disc brushes are arranged symmetrically on the left and right sides of the vehicle in groups of two, and the two groups of cleaning disc brushes are arranged front and back. The two cleaning disc brushes located in the front are the first cleaning disc brushes 21, and the two cleaning disc brushes located in the rear are the second cleaning disc brushes 22. The spacing between the two first cleaning disc brushes 21 is greater than the spacing between the two second cleaning disc brushes 22, thereby enhancing the collection effect of the grain, expanding the cleaning range, and increasing the working efficiency. In order to collect the grain conveniently, the two disc brushes in each set of disc brushes can be close to each other, so that the disc brushes can cover the entire width of the vehicle during the forward movement. Of course, in other embodiments, the sweeping device can also be a strip brush that moves along the front and rear direction of the vehicle, so that when sweeping the grain, the grain can be pushed backwards, thereby facilitating collection. Alternatively, in other embodiments, the sweeping device and the storage bucket can be arranged at intervals on the left and right. When it is necessary to collect grain, the grain sweeper is parked at a place where there is grain, and the grain sweeper is moved after the collection is completed.

[0027] like Figure 2 and Figure 4As shown in the figure, in order to collect grains, a storage structure is further provided on the vehicle. Specifically, the storage structure is a storage hopper 4 with an opening facing forward. The storage hopper 4 includes a bottom plate 41, a left side plate 42, a right side plate 43, and a rear side plate 44 that are perpendicular to the bottom plate 41. In this way, the storage hopper 4 forms an opening for grains to enter, which is composed of the left side plate 42, the right side plate 43, and the bottom plate 41. Grains with a relatively high movement speed will move backward onto the bottom plate 41 or even hit the rear side plate 44. The setting of only three side walls can minimize the weight of the vehicle while meeting the function requirements. The surface of the bottom plate 41 has a certain frictional force. When the grains stay on the bottom plate 41, they can be retained in the storage hopper 4 under the action of the frictional force, even when the storage hopper 4 is arranged obliquely. The storage hopper 4 is arranged at the bottom of the vehicle and behind the sweeping device. When the sweeping device sweeps the grains backward, it is convenient for the grains to move to the opening of the storage hopper 4. When the storage hopper 4 is collecting grains, it is necessary to keep the opening of the storage hopper 4 as close to the ground as possible to facilitate the grains to directly enter the storage hopper 4 during the backward movement. During the forward movement of the vehicle, the storage hopper 4 cannot affect the normal driving of the vehicle. Therefore, the storage hopper 4 has a grain collection state in which the opening fits to the ground to receive the grains swept by the sweeping device and a traveling state in which the opening rises for the normal driving of the vehicle. Of course, in other embodiments, the storage hopper may further include a top cover to prevent the grains from flying out of the storage hopper due to excessive movement speed. Or, in other embodiments, the storage hopper may only include a bottom plate and side plates with arc-shaped peripheries. It should be noted that there is a relatively large space above the storage hopper where the control unit of the grain cleaning vehicle (not shown in the figure) can be installed, which is convenient for realizing autonomous driving.

[0028] As Figure 2 and Figure 4 shown in the figure, in order to facilitate the switching between the two states of the storage hopper 4, the storage hopper 4 is hinged to the vehicle body, and a power mechanism for driving the storage hopper 4 to rotate relative to the vehicle body is further provided between the storage hopper 4 and the vehicle body. Specifically, the vehicle body includes a mounting rod 15 extending downward from the top cover of the vehicle. The mounting rod 15 can also be fixed to the side wall during the downward extension path to increase its structural strength. Of course, in other embodiments, the mounting rod may not be provided anymore, and the left side plate and the right side plate of the storage hopper are respectively hinged to the vehicle side wall. Or, in other embodiments, the power mechanism is not provided, but a stop pin is provided on the side wall, and the position switching of the two states of the storage hopper is manually performed by a person.

[0029] For the automatic control of the receiving hopper 4, a linear motion mechanism is further connected between the mounting rod 15 and the receiving hopper 4. The linear motion mechanism is a hydraulic cylinder 5. The cylinder body of the hydraulic cylinder 5 is hinged to the mounting rod 15, and the telescopic rod of the hydraulic cylinder 5 is hinged to the receiving hopper 4. The hydraulic cylinder 5 is arranged obliquely. When the telescopic rod of the hydraulic cylinder 5 extends, the opening of the receiving hopper 4 moves downward around its hinge axis. At this time, the receiving hopper 4 can be switched to the grain receiving state. When the telescopic rod of the hydraulic cylinder 5 retracts, the opening of the receiving hopper 4 moves upward around its hinge axis. At this time, the receiving hopper 4 can be switched to the traveling state. To increase the volume of the receiving hopper 4, the left side plate 42 and the right side plate 43 of the receiving hopper 4 need to be arranged as close as possible to the vehicle side wall 11. The hydraulic cylinder 5 is hinged to the inner wall surfaces of the left side plate 42 and the right side plate 43 of the receiving hopper 4, which is convenient for increasing the size of the receiving hopper 4. Of course, in other embodiments, the linear motion mechanism can also be set as an air cylinder or an electric push rod. Or in other embodiments, the power mechanism can also be set as a rotational power source such as a motor. At this time, a gear is fixedly arranged on the hinge axis between the receiving hopper and the vehicle body. The hinge axis is fixedly arranged on the receiving hopper, and an output gear meshing with the gear on the hinge axis is arranged on the output shaft of the motor.

[0030] The mounting rod 15 includes a bent section and vertical sections vertically extending at both ends of the bent section. Through the setting of the bent section, it is convenient to increase the structural strength of the mounting rod 15 and better support the receiving hopper 4 after loading grain. And the bent section extends obliquely backward, so that the vertical section below the bent section is close to the rear side wall of the vehicle, which is convenient to fixedly install the mounting rod 15 on the vehicle side wall 11 and the vehicle rear side wall respectively. It should be noted that, in order to better support the receiving hopper 4, mounting rods 15 are arranged on both the left and right sides of the vehicle side wall 11. There are two hydraulic cylinders 5, and the two hydraulic cylinders 5 are respectively arranged on the left side plate 42 of the receiving hopper 4 and the right side plate 43 of the receiving hopper 4. A convex edge protruding backward is also arranged on the lower vertical section, which is convenient to connect to the vehicle rear side wall. Of course, in other embodiments, the mounting rod can also be set as a straight rod, and the mounting rod extends directly downward from the vehicle top cover. Or, in other embodiments, if the torque that the hydraulic cylinder can provide is sufficient, the hydraulic cylinder can be arranged on only one side.

[0031] As Figure 2 and Figure 3As shown in the figure, when the sweeping device sweeps the grain on the ground, since there will inevitably be some light debris such as dust on the ground, the light debris will be swept and move backward. Arranging the sweeping device and the receiving hopper 4 at intervals in the front and back can cause the grain and dust to decelerate when moving backward. Since the weight of the grain is greater than that of the dust, the speed of the light debris such as dust will decay faster under the same initial speed. Therefore, it is convenient to sweep the grain into the receiving hopper 4 at a relatively fast speed, and part of the dust will fall in front of the opening of the receiving hopper 4 due to the decay of its own speed, for partial filtration, which is convenient for improving the cleanliness of the grain.

[0032] In order to improve the filtration effect on dust, the grain cleaning vehicle further includes an air outlet device arranged at the bottom of the vehicle body. The air outlet of the air outlet device is arranged horizontally, and the air outlet path of the air outlet device extends horizontally, which can blow between the sweeping device and the opening of the receiving hopper 4. That is, a horizontally extending air belt is formed between the sweeping device and the opening of the receiving hopper 4. Substances within this air belt will all generate a horizontal acceleration, and accordingly, the grain and dust thrown by the sweeping device will pass through the air belt and be blown by the gas. Since the weight of the grain itself is relatively large, the influence of the air belt is relatively small. Therefore, after adding the air outlet device, impurities such as dust inside the grain will be further filtered. That is, the air outlet path is located behind the sweeping device and has an overlapping part with the transmission path of the grain swept by the sweeping device. Specifically, the air outlet device is a centrifugal fan 3 installed on the inner side of the left side wall on one side. The air outlet and the air inlet of the centrifugal fan 3 face perpendicular to each other. That is, the centrifugal fan 3 intakes air in the front-back direction and then blows it out horizontally. At this time, the centrifugal fan 3 can be directly fixed on the side wall of the vehicle. Of course, in other embodiments, the air outlet device can be set as an axial flow fan. At this time, a certain space needs to be reserved for the air intake of the air outlet device, so the air outlet device needs to be arranged at an interval from the side wall of the vehicle, that is, the air outlet device is indirectly fixed on the side wall of the vehicle through a mounting bracket or fixed at other positions. Or, in other embodiments, an air inlet for the axial flow fan is provided on the left side plate of the vehicle, and the axial flow fan is fixedly arranged at the air inlet of the left side plate. Or, in other embodiments, the air outlet device can also be arranged on the right side wall.

[0033] The air inlet of the centrifugal fan 3 is arranged facing backward to reduce the dust lifted by the sweeping device from entering the interior of the centrifugal fan 3. At the same time, in order to avoid the air inlet of the centrifugal fan 3 facing the opening of the receiving hopper 4 and sucking in the grain, the air inlet of the centrifugal fan 3 and the opening of the receiving hopper 4 are arranged at intervals in the width direction of the grain cleaning vehicle. Of course, in other embodiments, a filtering structure can also be provided at the air inlet of the centrifugal fan. At this time, the air inlet of the centrifugal fan can also be arranged facing forward or upward. At this time, the air inlet of the centrifugal fan and the opening of the receiving hopper can also partially overlap in the width direction.

[0034] When the centrifugal fan 3 discharges air, a large amount of impurities will be blown onto the right side wall, making the inner wall surface of the right side wall prone to getting dirty. To facilitate disassembly and cleaning, a cover plate 14 is provided on the right side wall opposite to the centrifugal fan 3. The cover plate 14 is detachable from the right side wall of the vehicle. When the inside of the right side wall of the vehicle gets dirty after running for a period of time, it can be removed for cleaning. Of course, when discharging grain, the cover plate 14 can also be opened for manual auxiliary discharging. Of course, in other embodiments, the cover plate may not be provided. When cleaning is required, the inner surface of the right side wall can be reached and cleaned from the bottom of the vehicle upwards.

[0035] When grain cleaning is required, the grain cleaning vehicle is moved to a place where there is grain, and the hydraulic cylinder 5 is controlled to extend. At this time, it is in the grain receiving state. Under the action of the sweeping device, the grain and dust move backward together. Under the action of the centrifugal fan 3, a large amount of dust is blown away, and only the heavier grain enters the receiving hopper 4. Under the action of the friction force of the receiving hopper 4, the grain will remain in the receiving hopper 4. When it is necessary to move forward to the next location for grain receiving, first control the hydraulic cylinder 5 to retract to switch the receiving hopper 4 to the grain receiving state, and then the vehicle moves forward to the designated location for grain receiving. When the receiving hopper 4 is full, control the vehicle to move to the grain unloading location and control the receiving hopper 4 to switch to the grain receiving state. At this time, the cover plate at the rear of the vehicle can be opened, and a broom can be used to scrape down the grain. Of course, during the cleaning process, the vehicle can either stop for grain cleaning and then move to the next place for intermittent cleaning after the cleaning is completed, or grain collection can be carried out while the grain cleaning vehicle is moving forward.

[0036] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention is subject to the claims. All equivalent structural changes made by using the description and drawings of the present invention should, by the same token, be included in the protection scope of the present invention.

Claims

1. A grain cleaning vehicle, characterized in that: The vehicle body includes a sweeping device for sweeping grains on the ground and a storage structure for storing the swept grains, wherein the storage structure is a storage bucket having an opening that can be arranged toward the sweeping device, the storage bucket is located behind the sweeping device and is arranged at a distance from the sweeping device, and the storage bucket has a grain collecting state in which the opening is attached to the ground to receive the grains swept by the sweeping device and a traveling state in which the opening is raised for normal driving of the vehicle; an air outlet device is provided at the bottom of the vehicle body, the air outlet of the air outlet device is arranged horizontally, and the air outlet path is located at the rear side of the sweeping device and has an overlapping part with the transmission path of the grains swept by the sweeping device.

2. The grain cleaning vehicle according to claim 1, characterized in that: The vehicle body comprises a left side wall and a right side wall, and the air outlet device is installed on the inner side surface of one of the left and right side walls.

3. The grain cleaning vehicle according to claim 1 or 2, characterized in that: The grain cleaning vehicle also includes a centrifugal fan. The air outlet device is a centrifugal fan. The air outlet and the air inlet of the centrifugal fan are oriented perpendicular to each other.

4. The grain cleaning vehicle according to claim 3, characterized in that: The air inlet of the centrifugal fan is arranged rearward, and the air inlet of the centrifugal fan and the opening of the storage bucket are arranged at intervals in the width direction of the grain cleaning vehicle.

5. The grain cleaning vehicle according to claim 1 or 2, characterized in that: The storage bucket is hinged on the vehicle body, and a power mechanism for driving the storage bucket to rotate around an axis of hinge with the vehicle body is arranged between the storage bucket and the vehicle body.

6. The grain cleaning vehicle according to claim 5, characterized in that: The power mechanism is a direct-acting motion mechanism, and two ends of the direct-acting motion mechanism are respectively hingedly arranged on the vehicle body and the storage bucket.

7. The grain cleaning vehicle according to claim 6, characterized in that: The vehicle body comprises a vehicle frame and a mounting rod connected to the top of the vehicle frame, the mounting rod extends from top to bottom, and one end of the direct-acting motion mechanism is hingedly arranged on the mounting rod.

8. The grain cleaning vehicle according to claim 7, characterized in that: The mounting rod comprises a curved section and vertical sections extending vertically at both ends of the curved section. The curved section extends obliquely backward so that the vertical section below the curved section is arranged close to the rear side wall of the vehicle body.

9. The grain cleaning vehicle according to claim 6, characterized in that: The storage bucket comprises a bottom plate, a left side plate, a right side plate and a rear side plate perpendicular to the bottom plate, and the opening is surrounded by the front ends of the bottom plate, the left side plate and the right side plate.

10. The grain cleaning vehicle according to claim 2, characterized in that: A cover plate is detachably connected to the side wall of the vehicle body directly facing the air outlet of the air outlet device.

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