A vehicle-mounted grain suction machine

Abstract

The present invention relates to the technical field of grain suction machines, and particularly relates to a vehicle-mounted grain suction machine, which includes a vehicle body and a silo arranged on the vehicle body. A feeding device for conveying materials is arranged on the silo; the feeding device includes a negative pressure material conveying component arranged on the silo and a screw material conveying component arranged on the silo; the negative pressure material conveying component includes a first feeding pipe communicated with the silo, a negative pressure fan arranged on the vehicle body, and a connecting pipe arranged at the air inlet of the negative pressure fan and communicated with the silo; the screw material conveying component includes a second feeding pipe arranged inside the first feeding pipe, a connecting shaft rotatably arranged on the silo, and a spiral blade fixedly connected to the outside of the connecting shaft and rotatably arranged inside the second feeding pipe; The beneficial effect of the present invention is that in this application, by combining the two methods of screw material conveying and pneumatic material conveying, the problem of easy dust generation in screw material conveying is solved, and at the same time, the problem of easy blockage in pneumatic material conveying is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of grain suction machines, and particularly to a vehicle-mounted grain suction machine. Background Art

[0002] In the fields of agriculture and logistics, the handling and transportation of grains have always been an important link. Although traditional grain suction machines have improved the efficiency of grain handling to a certain extent, their fixed nature and inconvenient movement limit their application scope. To overcome this problem, vehicle-mounted grain suction machines have emerged. Vehicle-mounted grain suction machines are loaded onto the main body of the grain suction machine through a transport vehicle, which not only realizes the convenient movement of the equipment but also facilitates the movement of the loaded materials, greatly improving the flexibility and efficiency of grain handling.

[0003] However, existing vehicle-mounted grain suction machines still have certain problems and challenges in terms of technology and application. Among them, the most prominent are the limitations of the two methods of pneumatic grain suction and screw blade grain suction.

[0004] The pneumatic grain suction method performs well in preventing dust from flying. It sucks grains into the equipment interior through the negative pressure principle, effectively reducing the dust pollution during the grain handling process. However, the aerodynamic force of pneumatic grain suction is limited. Especially after the grain suction pipe is inserted deep into the material pile, due to the inability of air to smoothly enter the suction pipe, the grain suction effect is greatly reduced, and it may even result in the situation of no grain intake, causing the pipe orifice to be blocked. Seriously, this situation may also lead to damage to the fan, affecting the normal operation of the equipment. Especially in vehicle-mounted grain suction machines, since the fan is usually driven by the vehicle's engine and has a relatively low power, the problem of no grain intake caused by inserting the grain suction pipe deep into the material pile is more prominent.

[0005] In contrast, the screw blade grain suction method conveys materials through the rotation of the screw blade. This method does not affect normal operation after being inserted deep into the material pile and can continuously and stably handle grains. However, screw blade grain suction is prone to generating dust during material transportation, which not only affects the cleanliness of the working environment but also may pose a threat to the health of operators.

[0006] To address the above problems, continuous improvement and innovation are needed in the design and application of vehicle-mounted grain suction machines. On the one hand, it is necessary to optimize pneumatic grain suction and the design of the grain suction pipe to ensure that the grain suction effect can still be maintained after being inserted deep into the material pile and prevent damage to the fan due to the inability of air to enter. On the other hand, it is necessary to improve the dust prevention measures for screw blade grain suction to reduce the generation of dust.

[0007] Therefore, a vehicle-mounted grain suction machine is needed to overcome the occurrence of the above problems. Summary of the Invention

[0008] In order to solve the above problems, an embodiment of the present invention provides a vehicle-mounted grain suction machine, which achieves the purpose of solving the problems raised in the background technology.

[0009] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a vehicle-mounted grain suction machine, comprising a vehicle body and a silo arranged on the vehicle body, wherein the silo is provided with a feeding device for conveying materials;

[0010] The feeding device comprises a negative pressure feeding component arranged on the silo and a spiral feeding component arranged on the silo;

[0011] The negative pressure material conveying assembly includes a feed pipe connected to the silo, a negative pressure fan installed on the vehicle body, and a connecting pipe installed at the air inlet of the negative pressure fan and connected to the silo;

[0012] The spiral feeding assembly includes a feed pipe 2 arranged inside the feed pipe 1, a connecting shaft rotatably arranged on the silo, a spiral blade fixedly connected to the outside of the connecting shaft and rotatably arranged inside the feed pipe 2, a feeding part fixedly connected to one end of the feed pipe 2, and a feeding part fixedly connected to the other end of the feed pipe 2;

[0013] A distance is provided between the inner wall of the first feeding pipe and the outer wall of the second feeding pipe.

[0014] As a further improvement of the above technical solution:

[0015] The spiral feeding assembly also includes a temporary storage bin fixedly connected to the interior of the silo, a baffle hingedly arranged at the bottom opening of the temporary storage bin, and a spring support rod hingedly arranged between the bottom of the baffle and the inner wall of the silo;

[0016] The unloading portion is located inside the temporary storage bin, and one end of the second feeding pipe is connected and arranged on the temporary storage bin.

[0017] The vehicle body is provided with a driving source for driving the negative pressure fan to operate and the connecting shaft to rotate; a transmission assembly is provided between the driving source and the negative pressure fan and between the driving source and the connecting shaft.

[0018] The transmission assembly includes a pulley 1 fixedly connected to the output end of the driving source, a pulley 2 fixedly connected to the input end of the negative pressure fan, a pulley 3 fixedly connected to the connecting shaft, a belt 1 arranged between the pulley 1 and the pulley 2, and a belt 2 arranged between the pulley 1 and the pulley 3.

[0019] A tensioning assembly for tensioning belt one and / or belt two is arranged on the side of the silo.

[0020] The tensioning assembly includes an adjustment bin arranged on the side of the silo, a guide groove opened inside the adjustment bin, a first positioning hole arranged inside the guide groove, a second positioning hole arranged inside the guide groove, a third positioning hole arranged inside the guide groove, a fourth positioning hole arranged inside the guide groove, a connecting rod slidably arranged inside the guide groove, and a tensioning wheel rotatably arranged outside the connecting rod.

[0021] There are two tensioning wheels, one of the tensioning wheels is connected to the first belt, and the other tensioning wheel is connected to the second belt.

[0022] Card slots are opened on the sides of the first positioning hole, the second positioning hole, the third positioning hole, and the fourth positioning hole, and a clamping block for cooperating with the card slots is fixedly connected to the end of the connecting rod.

[0023] A dust removal mechanism communicated with the connecting pipe is arranged on the vehicle body.

[0024] A connecting piece for connecting the first feed pipe and the second feed pipe is arranged inside the spacing, and the length direction of the connecting piece is parallel to the axial direction of the first feed pipe.

[0025] The beneficial effects of the embodiments of the present invention are as follows:

[0026] During actual use, since the feeding part protrudes from the end of the first feed pipe and is inserted into the inside of the material pile when in use, it is difficult for the first feed pipe to enter deep into the material pile at this time, so the problem that the first feed pipe cannot suck grain can be prevented; even if the first feed pipe still inserts deep into the material pile after the feeding part is inserted into the inside of the material pile, due to the continuous conveying of the material by the spiral blade, a depression is generated at the insertion position of the feeding part, so that the height of the material pile at the first feed pipe continuously decreases. When the height of the material pile at the first feed pipe decreases to a certain level, the first feed pipe can still suck materials normally, preventing the negative pressure fan from being damaged due to the lack of air intake for a long time; that is, in this application, by combining the two methods of spiral material conveying and pneumatic material conveying, the problem of easy dust generation in spiral material conveying is solved, and at the same time, the problem of easy blockage in pneumatic material conveying is solved.

[0027] During actual use, the material conveyed by the second feed pipe first enters the interior of the temporary storage bin. As the material in the temporary storage bin gradually increases, after its weight overcomes the elastic force provided by the spring support rod, the baffle plate opens, allowing the material inside the temporary storage bin to flow out, that is, enabling the material to enter the interior of the storage bin. The intermittent opening of the temporary storage bin is achieved through the spring support rod and the baffle plate. Through the intermittent opening of the temporary storage bin, firstly, it can prevent air from continuously entering the storage bin through the second feed pipe, resulting in a decrease in the negative pressure inside the first feed pipe and affecting the suction operation of the first feed pipe. At the same time, through the intermittent opening of the temporary storage bin, when the pipe orifice of the first feed pipe is blocked, the intermittent opening of the temporary storage bin can be used to balance the pressure inside the storage bin, preventing damage caused by the long-term poor air intake of the negative pressure fan. Additionally, through the intermittent opening of the temporary storage bin, a negative pressure can be intermittently generated inside the second feed pipe, facilitating the rapid suction of the dust inside the second feed pipe into the storage bin and preventing the dust inside the second feed pipe from floating out. Finally, through the intermittent opening of the temporary storage bin, a pressure difference is generated between the interior of the temporary storage bin and the interior of the storage bin. When the temporary storage bin is opened, the pressure difference can prompt the material inside the temporary storage bin to quickly enter the interior of the storage bin, that is, facilitating the rapid discharge of the material after the temporary storage bin is opened.

[0028] During actual use, the tensioning assembly can be used to tension the first belt and / or the second belt, thereby selecting three feeding operation modes through the tensioning assembly: operating the negative pressure feeding assembly alone, operating the screw feeding assembly alone, and operating the negative pressure feeding assembly and the screw feeding assembly simultaneously. The user can make a selection according to the actual situation, which is convenient for actual use.

[0029] When switching between the three feeding operation modes of operating the negative pressure feeding assembly alone, operating the screw feeding assembly alone, and operating the negative pressure feeding assembly and the screw feeding assembly simultaneously through the tensioning assembly, since the first feed pipe and the second feed pipe are integrally arranged, the user only needs to pick up the first feed pipe for use. That is, picking up the first feed pipe for use can correspond to the three feeding operation modes, preventing incorrect picking. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of the first perspective of the present invention;

[0031] Figure 2 It is a schematic structural diagram of the second perspective of the present invention;

[0032] Figure 3 It is a sectional view of the storage bin of the present invention;

[0033] Figure 4 It is a schematic structural diagram of the screw feeding assembly of the present invention;

[0034] Figure 5 It is a sectional view of the screw feeding assembly of the present invention;

[0035] Figure 6 It is a schematic structural view of the transmission component of the present invention;

[0036] Figure 7 It is a schematic structural view of the connecting rod of the present invention;

[0037] Figure 8 It is a perspective view of the adjustment bin of the present invention.

[0038] In the figure: 1, vehicle body; 2, material bin; 3, feeding device; 4, negative pressure material conveying component; 5, spiral material conveying component; 6, spacing; 7, tensioning component; 8, driving source; 9, transmission component; 10, connecting piece; 11, dust removal mechanism;

[0039] 41, feeding pipe one; 42, negative pressure fan; 43, connecting pipe;

[0040] 51, feeding pipe two; 52, connecting shaft; 53, spiral blade; 54, blanking part; 55, temporary storage bin; 56, baffle; 57, spring support rod; 58, loading part;

[0041] 71, adjustment bin; 72, guide groove; 73, positioning hole one; 74, positioning hole two; 75, positioning hole three; 76, positioning hole four; 77, connecting rod; 78, tensioning wheel; 79, clamping groove; 710, clamping block;

[0042] 91, pulley one; 92, pulley two; 93, pulley three; 94, belt one; 95, belt two. Specific embodiments

[0043] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0044] See Figures 1 to 8 , the embodiment of the present invention discloses a vehicle-mounted grain suction machine, including a vehicle body 1, a material bin 2 arranged on the vehicle body 1, and a feeding device 3 for conveying materials arranged on the material bin 2;

[0045] The feeding device 3 includes a negative pressure material conveying component 4 arranged on the material bin 2 and a spiral material conveying component 5 arranged on the material bin 2;

[0046] During actual use, the materials are conveyed into the interior of the material bin 2 through the negative pressure material conveying component 4 and the spiral material conveying component 5;

[0047] The negative pressure material conveying component 4 includes a feeding pipe one 41 communicated with the material bin 2, a negative pressure fan 42 arranged on the vehicle body 1, and a connecting pipe 43 arranged at the air inlet of the negative pressure fan 42 and communicated with the material bin 2;

[0048] After the negative pressure fan 42 operates, a negative pressure is generated inside the connecting pipe 43, that is, a negative pressure is generated inside the silo 2, so that the material can be sucked into the silo 2 through the first feed pipe 41;

[0049] The screw feeding assembly 5 includes a second feed pipe 51 arranged inside the first feed pipe 41, a connecting shaft 52 rotatably arranged on the silo 2, a screw blade 53 fixedly connected to the outside of the connecting shaft 52 and rotatably arranged inside the second feed pipe 51, a blanking part 54 fixedly connected to one end of the second feed pipe 51, and a feeding part 58 fixedly connected to the other end of the second feed pipe 51; after the connecting shaft 52 rotates, it drives the screw blade 53 to rotate. After inserting the feeding part 58 into the material pile, the material can be conveyed along the second feed pipe 51 through the rotation of the screw blade 53. When the material moves to the blanking part 54, it falls into the silo 2; the feeding part 58 protrudes from the end of the first feed pipe 41; a rotating shaft is arranged inside the feeding part 58, and one end of the screw blade 53 is fixedly connected to the rotating shaft; both the first feed pipe 41 and the second feed pipe 51 are flexible hoses;

[0050] During actual use, by inserting the feeding part 58 into the material pile, the material can be conveyed through the rotation of the screw blade 53. When dust is generated in the material, the dust can be sucked in time through the first feed pipe 41 to prevent the dust from further spreading and causing pollution; during actual use, since the feeding part 58 protrudes from the end of the first feed pipe 41, when the feeding part 58 is inserted into the material pile during use, it is difficult for the first feed pipe 41 to enter deep into the material pile at this time, so the problem that the first feed pipe 41 cannot suck grain can be prevented; even if the first feed pipe 41 still inserts deep into the material pile after the feeding part 58 is inserted into the material pile, due to the continuous conveying of the material by the screw blade 53, a depression is generated at the insertion position of the feeding part 58, so that the height of the material pile at the first feed pipe 41 can be continuously reduced. When the height of the material pile at the first feed pipe 41 is reduced to a certain level, the first feed pipe 41 can still suck material normally, preventing the negative pressure fan 42 from being damaged due to lack of air intake for a long time;

[0051] That is, in this application, by combining the two methods of screw feeding and pneumatic feeding, the problem of easy dust generation in screw feeding is solved, and at the same time, the problem of easy blockage in pneumatic feeding is solved;

[0052] A gap 6 is provided between the inner wall of the first feed pipe 41 and the outer wall of the second feed pipe 51;

[0053] By setting the gap 6, the material and air can pass through the first feed pipe 41 normally, preventing the first feed pipe 41 and the second feed pipe 51 from fitting together and affecting the material conveying.

[0054] As a further explanation of this application:

[0055] The spiral feeding assembly 5 further includes a temporary storage bin 55 fixedly connected inside the bin 2, a baffle 56 hinged at the bottom opening of the temporary storage bin 55, and a spring support rod 57 hinged between the bottom of the baffle 56 and the inner wall of the bin 2;

[0056] The feeding part 54 is located inside the temporary storage bin 55, and one end of the second feeding pipe 51 is communicatively connected to the temporary storage bin 55;

[0057] During actual use, the materials conveyed by the second feeding pipe 51 first enter the inside of the temporary storage bin 55. As the materials inside the temporary storage bin 55 gradually increase, after their weight overcomes the elastic force provided by the spring support rod 57, the baffle 56 is opened, enabling the materials inside the temporary storage bin 55 to flow out, that is, enabling the materials to enter the inside of the bin 2. Thus, the intermittent opening of the temporary storage bin 55 is achieved through the spring support rod 57 and the baffle 56;

[0058] Through the intermittent opening of the temporary storage bin 55, firstly, it can prevent air from continuously entering the inside of the bin 2 through the second feeding pipe 51, resulting in a decrease in the negative pressure inside the first feeding pipe 41 and affecting the material suction operation of the first feeding pipe 41;

[0059] Meanwhile, through the intermittent opening of the temporary storage bin 55, when the pipe orifice of the first feeding pipe 41 is blocked, the intermittent opening of the temporary storage bin 55 can be used to balance the pressure inside the bin 2, preventing damage to the negative pressure fan 42 caused by long-term poor air intake;

[0060] In addition, through the intermittent opening of the temporary storage bin 55, a negative pressure can be intermittently generated inside the second feeding pipe 51, facilitating the rapid suction of the dust inside the second feeding pipe 51 into the inside of the bin 2 and preventing the dust inside the second feeding pipe 51 from floating out;

[0061] Finally, through the intermittent opening of the temporary storage bin 55, a pressure difference is generated between the inside of the temporary storage bin 55 and the inside of the bin 2. When the temporary storage bin 55 is opened, the pressure difference can prompt the materials inside the temporary storage bin 55 to quickly enter the inside of the bin 2, that is, facilitating the rapid discharge of the materials after the temporary storage bin 55 is opened.

[0062] As a further description of this application:

[0063] A drive source 8 for driving the operation of the negative pressure fan 42 and driving the rotation of the connecting shaft 52 is provided on the vehicle body 1; a transmission assembly 9 is provided between the drive source 8 and the negative pressure fan 42 and between the drive source 8 and the connecting shaft 52;

[0064] During actual use, the drive source 8 drives the operation of the negative pressure fan 42 and drives the rotation of the connecting shaft 52 through the transmission assembly 9;

[0065] The drive source 8 can use the engine of the vehicle body 1 itself, an engine that can be mounted on the vehicle, etc.

[0066] As a further description of the present application:

[0067] The transmission assembly 9 includes a first pulley 91 fixedly connected to the output end of the drive source 8, a second pulley 92 fixedly connected to the input end of the negative pressure fan 42, a third pulley 93 fixedly connected to the connecting shaft 52, a first belt 94 disposed between the first pulley 91 and the second pulley 92, and a second belt 95 disposed between the first pulley 91 and the third pulley 93;

[0068] After the drive source 8 is started, it drives the first pulley 91 to rotate, thereby driving the second pulley 92 to rotate through the first belt 94, and driving the third pulley 93 to rotate through the second belt 95.

[0069] As a further description of the present application:

[0070] A tensioning assembly 7 for tensioning the first belt 94 and / or the second belt 95 is provided on the side of the silo 2;

[0071] In actual use, the first belt 94 and / or the second belt 95 can be tensioned by the tensioning assembly 7, so that three feeding operation modes of separately operating the negative pressure feeding assembly 4, separately operating the screw feeding assembly 5, and simultaneously operating the negative pressure feeding assembly 4 and the screw feeding assembly 5 can be selected through the tensioning assembly 7; the user can select according to the actual situation, which is convenient for actual use;

[0072] Specifically:

[0073] When the tensioning assembly 7 separately tensions the first belt 94, at this time, the first pulley 91 can drive the second pulley 92 to rotate through the first belt 94, and the first pulley 91 cannot drive the third pulley 93 to rotate through the loose second belt 95, so that the negative pressure fan 42 can be driven to operate, that is, the negative pressure feeding assembly 4 is separately operated for feeding operation;

[0074] When the tensioning assembly 7 separately tensions the second belt 95, at this time, the first pulley 91 can drive the third pulley 93 to rotate through the second belt 95, and the first pulley 91 cannot drive the second pulley 92 to rotate through the loose first belt 94, so that the connecting shaft 52 can be driven to rotate, that is, the screw feeding assembly 5 is separately operated for feeding operation;

[0075] When the tensioning assembly 7 simultaneously tensions the first belt 94 and the second belt 95, at this time, the first pulley 91 drives the second pulley 92 to rotate through the first belt 94, and at the same time drives the third pulley 93 to rotate through the second belt 95, so that the negative pressure fan 42 can be driven to operate while driving the connecting shaft 52 to rotate, that is, the negative pressure feeding assembly 4 and the screw feeding assembly 5 can be simultaneously operated for feeding operation.

[0076] As a further description of the present application:

[0077] When switching among three feeding operation modes of separately operating the negative pressure feeding component 4, separately operating the screw feeding component 5, and simultaneously operating the negative pressure feeding component 4 and the screw feeding component 5 through the tensioning component 7, since the first feeding pipe 41 and the second feeding pipe 51 are integrally arranged, the user only needs to take the first feeding pipe 41 for use, that is, taking the first feeding pipe 41 for use can correspond to the three feeding operation modes, preventing incorrect taking.

[0078] As a further description of the present application:

[0079] The tensioning component 7 includes an adjustment bin 71 arranged on the side of the bin 2, a guide groove 72 opened inside the adjustment bin 71, a first positioning hole 73 arranged inside the guide groove 72, a second positioning hole 74 arranged inside the guide groove 72, a third positioning hole 75 arranged inside the guide groove 72, a fourth positioning hole 76 arranged inside the guide groove 72, a connecting rod 77 slidably arranged inside the guide groove 72, and a tensioning wheel 78 rotatably arranged outside the connecting rod 77;

[0080] The connecting rod 77 can slide inside the guide groove 72, and by inserting the connecting rod 77 into different fixed positioning holes, the first belt 94 and / or the second belt 95 can be tensioned through the tensioning wheel 78;

[0081] Specifically:

[0082] When the connecting rod 77 is inserted into the first positioning hole 73, at this time the tensioning wheel 78 tensions the first belt 94, and the tensioning wheel 78 cannot tension the second belt 95; that is, at this time the first pulley 91 can drive the second pulley 92 to rotate through the first belt 94, that is, the negative pressure feeding component 4 operates separately for feeding operation;

[0083] When the connecting rod 77 is inserted into the second positioning hole 74, at this time the tensioning wheel 78 tensions the second belt 95, and the tensioning wheel 78 cannot tension the first belt 94; that is, at this time the first pulley 91 can drive the third pulley 93 to rotate through the second belt 95, that is, the screw feeding component 5 operates separately for feeding operation;

[0084] When the connecting rod 77 is inserted into the third positioning hole 75, at this time the tensioning wheel 78 tensions both the first belt 94 and the second belt 95, that is, at this time the first pulley 91 can drive the second pulley 92 to rotate through the first belt 94, and at the same time can drive the third pulley 93 to rotate through the second belt 95, that is, the negative pressure feeding component 4 and the screw feeding component 5 operate simultaneously for feeding operation;

[0085] When the connecting rod 77 is inserted into the interior of the positioning hole four 76, at this time, the tensioning pulley 78 cannot tension the first belt 94 and the second belt 95, that is, both the first belt 94 and the second belt 95 are in a slack state. At this time, the drive source 8 can be repaired, the first belt 94 can be replaced and maintained, and the first belt 94 can be replaced and maintained.

[0086] As a further description of this application:

[0087] There are two tensioning pulleys 78, one of the tensioning pulleys 78 is connected to the first belt 94, and the other tensioning pulley 78 is connected to the second belt 95;

[0088] During actual use, when the tensioning pulley 78 tensions the first belt 94 and the second belt 95 at the same time, that is, at this time, the first pulley 91 can drive the second pulley 92 to rotate through the first belt 94, and at the same time, the third pulley 93 can be driven to rotate through the second belt 95; if although the rotation directions of the first belt 94 and the second belt 95 driving the tensioning pulley 78 are the same, due to the different running resistances of the negative pressure fan 42 and the connecting shaft 52, there is an easy speed difference between the first belt 94 and the second belt 95. When using a single tensioning pulley 78 to tension the first belt 94 and the second belt 95 at the same time, there is an easy speed difference between the belt and the tensioning pulley 78, which aggravates the wear of the belt; therefore, in this application, two independent tensioning pulleys 78 are used to tension the first belt 94 and the second belt 95 respectively, to avoid aggravating wear due to the speed difference.

[0089] As a further description of this application:

[0090] Slots 79 are provided on the sides of the first positioning hole 73, the second positioning hole 74, the third positioning hole 75, and the fourth positioning hole 76, and a clamping block 710 for use in cooperation with the slot 79 is fixedly connected to the end of the connecting rod 77;

[0091] During actual use, after inserting the connecting rod 77 into the interior of the positioning hole, rotating the connecting rod 77 can cause the clamping block 710 to be inserted into the interior of the slot 79 to complete the fixation.

[0092] As a further description of this application:

[0093] A dust removal mechanism 11 communicating with the communicating pipe 43 is provided on the vehicle body 1; preventing sundries such as materials and dust from entering the negative pressure fan 42.

[0094] As a further description of this application:

[0095] Inside the spacing 6, there is a connecting piece 10 for connecting the first feed pipe 41 and the second feed pipe 51. The length direction of the connecting piece 10 is parallel to the axial direction of the first feed pipe 41; the spacing 6 between the first feed pipe 41 and the second feed pipe 51 is maintained by the connecting piece 10; in actual use, using a connecting piece 10 with a smaller thickness can reduce the influence of the connecting piece 10 on the air circulation inside the first feed pipe 41.

[0096] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "center, up, down, left, right, vertical, horizontal, inside, outside" are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first, second, third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0097] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "installation, connection, connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0098] The term "including" or any other similar term is intended to cover non-exclusive inclusion, so that a process, article, or device / equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes the elements inherent in these processes, articles, or devices / equipment.

[0099] So far, the technical solution of the present invention has been described in combination with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. A vehicle-mounted grain suction machine, comprising a vehicle body (1) and a silo (2) arranged on the vehicle body (1), characterized in that, A feeding device (3) for conveying materials is provided on the silo (2). The feeding device (3) includes a negative pressure feeding component (4) provided on the silo (2) and a screw feeding component (5) provided on the silo (2). The negative pressure feeding component (4) includes a first feeding pipe (41) connected to the silo (2) in a communicating manner, a negative pressure fan (42) provided on the vehicle body (1), and a connecting pipe (43) provided at the air inlet of the negative pressure fan (42) and communicating with the silo (2). The screw feeding component (5) includes a second feeding pipe (51) arranged inside the first feeding pipe (41), a connecting shaft (52) rotatably arranged on the silo (2), a screw blade (53) fixedly connected to the outside of the connecting shaft (52) and rotatably arranged inside the second feeding pipe (51), a feeding part (54) fixedly connected to one end of the second feeding pipe (51), and a feeding part (58) fixedly connected to the other end of the second feeding pipe (51); wherein, the feeding part (58) protrudes from the end of the first feeding pipe (41), a rotating shaft is arranged inside the feeding part (58), and one end of the screw blade (53) is fixedly connected to the rotating shaft; by combining the two methods of screw feeding and pneumatic feeding, the problem of easy dust generation in screw feeding is solved, and at the same time, the problem of easy blockage in pneumatic feeding is solved. A spacing (6) is provided between the inner wall of the first feeding pipe (41) and the outer wall of the second feeding pipe (51). The screw feeding component (5) further includes a temporary storage bin (55) fixedly connected inside the silo (2), a baffle (56) hinged at the bottom opening of the temporary storage bin (55), and a spring support rod (57) hinged between the bottom of the baffle (56) and the inner wall of the silo (2). The feeding part (54) is located inside the temporary storage bin (55), and one end of the second feeding pipe (51) is connected to the temporary storage bin (55) in a communicating manner. The temporary storage bin (55) is designed such that when the temporary storage bin (55) is intermittently opened, it prevents air from continuously entering the inside of the silo (2) through the second feeding pipe (51), balances the pressure inside the silo (2), causes a negative pressure to be intermittently generated inside the second feeding pipe (51), and enables the materials inside the temporary storage bin (55) to be quickly discharged.

2. The on-vehicle grain suction machine according to claim 1, characterized in that, A driving source (8) for driving the negative pressure fan (42) to operate and driving the connecting shaft (52) to rotate is provided on the vehicle body (1); a transmission component (9) is provided between the driving source (8) and the negative pressure fan (42) and between the driving source (8) and the connecting shaft (52).

3. The on-vehicle grain suction machine according to claim 2, wherein, The transmission component (9) includes a first pulley (91) fixedly connected to the output end of the driving source (8), a second pulley (92) fixedly connected to the input end of the negative pressure fan (42), a third pulley (93) fixedly connected to the connecting shaft (52), a first belt (94) arranged between the first pulley (91) and the second pulley (92), and a second belt (95) arranged between the first pulley (91) and the third pulley (93).

4. The on-vehicle grain suction machine according to claim 3, characterized in that, A tensioning component (7) for tensioning the first belt (94) and / or the second belt (95) is provided on the side of the silo (2).

5. The on-vehicle grain suction machine according to claim 4, characterized in that, The tensioning assembly (7) includes an adjustment chamber (71) provided on the side of the silo (2), a guide groove (72) formed inside the adjustment chamber (71), a first positioning hole (73) provided inside the guide groove (72), a second positioning hole (74) provided inside the guide groove (72), a third positioning hole (75) provided inside the guide groove (72), a fourth positioning hole (76) provided inside the guide groove (72), a connecting rod (77) slidably arranged inside the guide groove (72), and a tensioning wheel (78) rotatably arranged outside the connecting rod (77).

6. The on-vehicle grain suction machine according to claim 5, characterized in that There are two tensioning wheels (78), one of the tensioning wheels (78) is connected to the first belt (94), and the other tensioning wheel (78) is connected to the second belt (95).

7. The on-vehicle grain suction machine according to claim 5, characterized in that, Chuck grooves (79) are formed on the sides of the first positioning hole (73), the second positioning hole (74), the third positioning hole (75) and the fourth positioning hole (76), and a chuck (710) used in cooperation with the chuck grooves (79) is fixedly connected to the end of the connecting rod (77).

8. The on-vehicle grain suction machine according to claim 1, characterized in that, A dust removal mechanism (11) communicating with the connecting pipe (43) is provided on the vehicle body (1).

9. The on-vehicle grain suction machine according to claim 1, characterized in that, A connecting piece (10) for connecting the first feed pipe (41) and the second feed pipe (51) is arranged inside the spacing (6), and the length direction of the connecting piece (10) is parallel to the axial direction of the first feed pipe (41).

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