Folding wing spiral bin cleaning machine

Abstract

The invention relates to the field of grain storage mechanical equipment, in particular to a folding wing spiral cleaning machine which comprises a grain scraping machine and a walking chassis, the grain scraping machine is arranged on the walking chassis, the folding wing spiral cleaning machine further comprises a folding wing assembly, and the folding wing assembly is rotationally connected to the side face of the grain scraping machine and used for conveying materials to a feeding port of the grain scraping machine; the folding wing assembly and the grain scraper form a first use state and a second use state, and in the first use state, the folding wing assembly is perpendicular to the walking direction of the bin cleaning machine; in the second use state, the folding wing assembly is parallel to the walking direction of the clearance machine; in the idle state, the shell of the folding wing assembly is attached to the walking chassis and can flexibly penetrate through key passing areas such as a doorway and a channel, during material conveying, the driving motor is started to enable the driving wheel to drive the shell and a connecting structure of the shell to generate angle deflection, meanwhile, the driving motor drives the spiral blade to rotate through the driving shaft, and then grains are conveyed towards the grain scraper. The operation area of the whole machine can be greatly increased, and the original grain discharging effect can be achieved without frequent movement of the whole machine.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of grain storage machinery, and in particular to a folding-wing spiral grain cleaning machine. BACKGROUND

[0002] In the field of grain storage and circulation, a grain cleaning machine is a core device for realizing rapid unloading of grain in a large-scale grain depot, and the operation efficiency of the grain cleaning machine directly determines the turnover capacity and operation cost of the grain depot. At present, the grain cleaning machines widely used in the industry mainly comprise a valley spading machine and a traveling chassis, wherein the valley spading machine is a key executive component for grabbing and conveying grain, and the structural design of the valley spading machine plays a decisive role in the operation effect.

[0003] In an actual unloading operation scene of a grain depot, the single-bin grain storage capacity of a large-scale grain depot can generally reach several thousand tons or even tens of thousands of tons. The large storage capacity causes the grain to form a three-dimensional grain pile structure with a wide stacking area and a high stacking height. When the grain cleaning machine is operated, the front rotating spading tooth roller of the grain cleaning machine grabs the grain in front of the machine head, and then the grain is transferred to an external conveyor by the internal conveying belt.

[0004] The core shortcoming of the existing grain cleaning machine is that the width of the machine head is fixed and narrow, which limits the operation area. In the grain spading operation, only the grain within the width of the machine head can be covered, and once the range is exceeded, the device position needs to be frequently adjusted manually. The width of the key passing area such as the gate and the passageway is often fixedly limited and directly related to the width of the grain inlet and the width of the machine head. In order to adapt to the gate passing requirement, the width of the grain inlet has to be designed to be even narrower, which further compresses the operation area. SUMMARY

[0005] The application provides a folding-wing spiral grain cleaning machine to solve the technical problem that the inventor realizes that the width of the key passing area such as the gate and the passageway is often fixedly limited, which causes the width of the machine head of the grain cleaning machine to be fixed and narrow, limits the operation area of the grain cleaning machine, and requires frequent manual stop and adjustment of the device position.

[0006] The application provides a folding-wing spiral grain cleaning machine, which comprises a valley spading machine and a traveling chassis, the valley spading machine is arranged on the traveling chassis, further comprises a folding-wing assembly, the folding-wing assembly is rotationally connected to the side surface of the valley spading machine and is used for conveying material to the material inlet of the valley spading machine, the valley spading machine and the folding-wing assembly form a first use state and a second use state, in the first use state, the folding-wing assembly is perpendicular to the traveling direction of the valley spading machine, and in the second use state, the folding-wing assembly is parallel to the traveling direction of the valley spading machine.

[0007] In any of the above technical solutions, further, the folding wing assembly comprises a spiral impeller for rotating and conveying materials, and a driving mechanism for switching between the first use state and the second use state, the driving mechanism being arranged at an end of the spiral impeller away from the harvester.

[0008] In any of the above technical solutions, further, the driving mechanism comprises a driving motor and a driving wheel, a first transmission mechanism being arranged between the driving motor and the driving wheel; a second transmission mechanism being arranged between the driving motor and the spiral impeller, the first transmission mechanism and the second transmission mechanism having different transmission ratios.

[0009] In any of the above technical solutions, further, the harvester comprises a conveying device and a head, the folding wing assembly being rotatably connected to the head via a T-shaped shaft, a horizontal shaft sleeve of the T-shaped shaft being arranged on an outer shell of the folding wing assembly, and a vertical shaft sleeve of the T-shaped shaft being arranged on an outer shell of the head.

[0010] In any of the above technical solutions, further, a first lifting device is arranged on the traveling chassis for lifting the folding wing assembly to form the second use state.

[0011] In any of the above technical solutions, further, the first lifting device comprises a lifting mechanism fixedly arranged on the traveling chassis and a lifting frame arranged on the folding wing assembly; when the second use state is formed, the lifting mechanism cooperates with the lifting frame to lift the folding wing assembly to a set height.

[0012] In any of the above technical solutions, further, the lifting mechanism comprises an elevator fixed relative to the chassis and a receiving plate extending to a side of the chassis, and a protrusion arranged on an upper surface of the receiving plate; the lifting frame is provided with an elongated slot; when the second use state is formed, the protrusion is located in the slot to limit movement of the folding wing assembly relative to the head.

[0013] In any of the above technical solutions, further, an end of the folding wing assembly connected to the head is provided with a suspension type bearing, and a rotating shaft of the spiral impeller is arranged in the suspension type bearing.

[0014] In any of the above technical solutions, further, a safety protection mechanism is arranged outside the spiral impeller.

[0015] In any of the above technical solutions, further, the head is rotatably connected to the traveling chassis, and a second lifting device is arranged between the traveling chassis and the conveying device, the second lifting device being used to adjust a distance between the head and the ground.

[0016] The application has the following beneficial effects: In the idle state, the shell of the folding wing assembly is attached to the walking chassis, which greatly reduces the floor area of the whole machine and can flexibly pass through the key access areas such as doorways and passages. When conveying, the driving motor is started to drive the driving wheel to cause the shell and its connecting structure to deflect, and at the same time, the driving motor drives the spiral blade to rotate through the driving shaft, thereby conveying the grain to the direction of the grain shoveling machine. This can greatly increase the working area of the whole machine, and the original grain discharging effect can be achieved without frequent movement of the whole machine, saving labor cost and improving grain discharging efficiency.

[0017] It should be understood that both the foregoing general description and the following detailed description are intended for purposes of illustration and description, and are not necessarily limiting of the application. The drawings illustrate the subject matter of the application. The specification and drawings are to be regarded in this manner as illustrative and not restrictive. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 The structure schematic diagram of the warehouse cleaning machine and the folding wing assembly in the retracted state of the embodiment of the present application; Figure 2 The structure schematic diagram of the warehouse cleaning machine and the folding wing assembly in the unfolded state of the embodiment of the present application; Figure 3 The enlarged schematic diagram of the structure at A in the embodiment of the present application; Figure 1 Figure 4 The enlarged schematic diagram of the structure at B in the embodiment of the present application; Figure 2 Figure 5 The enlarged schematic diagram of the structure at C in the embodiment of the present application; Figure 1 Figure 6 The enlarged schematic diagram of the structure at D in the embodiment of the present application; Figure 1 Figure 7 The structure schematic diagram of the folding wing assembly in the embodiment of the present application Figure 1 ; Figure 8 The structure schematic diagram of the folding wing assembly in the embodiment of the present application Figure 2 ; Figure 9 The schematic diagram of the driving motor and its connecting structure in the embodiment of the present application; ​​​​Figure 10 The structure of the first lifting device in the embodiment of the present application is shown in the following figure. Figure 9 The structure of the first lifting device in the embodiment of the present application is shown in the following figure. Figure 11 The structure of the second lifting device in the embodiment of the present application is shown in the following figure. Figure 12 The structure of the first lifting device in the embodiment of the present application is shown in the following figure.

[0020] Icon: 100 - a valley plough; 101 - a first shell; 102 - a second shell; 103 - a chute; 200 - a walking chassis; 201 - a chassis frame; 202 - a driving assembly; 203 - a first screw rod lifter; 204 - a first lifting screw rod; 205 - a receiving plate; 206 - a protrusion; 207 - a second screw rod lifter; 208 - a second lifting screw rod; 209 - a connecting plate; 210 - a first vertical bearing seat; 211 - a lifting rotating shaft; 212 - a fixed rotating shaft; 213 - a transmission shaft; 214 - a second vertical bearing seat; 300 - a folding wing assembly; 301 - an outer shell; 302 - a machine base plate; 303 - a driving motor; 304 - a double-row chain wheel; 305 - a driving shaft; 306 - a blade shaft; 307 - a spiral blade; 308 - a differential bearing; 309 - a chain; 310 - a differential bearing bracket; 311 - a driving wheel; 312 - a first sprocket; 313 - a second sprocket; 314 - a side plate; 315 - a connecting bracket; 316 - a fixed shaft sleeve; 317 - a rotating shaft sleeve; 318 - a hinged pin; 319 - a T-shaped rotating shaft; 320 - a bolt; 321 - a threaded hole; 322 - a lifting bracket; 323 - an opening; 324 - a belt suspension type bearing; 325 - a driven shaft; 326 - a torque limiter; 327 - a reinforcing plate; 328 - a safety touch edge; 329 - a baffle; 330 - a reinforcing rib; 331 - a universal wheel. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0022] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the application, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0025] Please refer to Figure 1 and Figure 2 In one or more embodiments, a folding wing spiral unloading machine is provided, comprising a scraper 100 and a walking chassis 200, the scraper 100 is arranged on the walking chassis 200, further comprising a folding wing assembly 300, the folding wing assembly 300 is rotatably connected to the side of the scraper 100, for conveying materials to the inlet of the scraper 100; the scraper 100 and the folding wing assembly 300 form a first use state and a second use state, in the first use state, the folding wing assembly 300 is perpendicular to the walking direction of the scraper 100; in the second use state, the folding wing assembly 300 is parallel to the walking direction of the scraper 100.

[0026] In this embodiment, in the actual unloading operation of a large grain depot, the traditional cleaning machine is limited by the fixed width design of the scraper 100, and its operation range is always limited to the local area directly in front of the machine head. However, the single-bin grain pile in the grain depot often covers an area of hundreds of square meters and has a height of 8-12 meters. After the traditional cleaning machine completes the local grain grabbing, if the position is not adjusted in time, the equipment will be in an idle state, causing the unloading operation to be interrupted. In order to ensure the continuity of the operation, the operator needs to closely monitor the cleaning progress of the grain pile throughout the operation, and frequently adjusts the lateral position and the angle of the machine head of the equipment by manually operating the walking chassis 200 to ensure that the scraper 100 continuously aims at the uncleaned grain pile area. This operation mode which highly depends on manual intervention not only greatly increases the labor cost, but also significantly increases the labor intensity of the personnel due to the frequent adjustment operations. At the same time, the width of the key passing areas such as the gate and the passage is often fixed, and the width of the entry point of the existing scraper is directly related to the width of the machine head. In order to adapt to the gate passing requirement, the width of the entry point has to be designed to be narrower, further compressing the operation area. This contradiction is particularly prominent in the area where the grain is concentrated and stacked. When the grain accumulation area is large, the narrow entry point and the operation area cannot match the grain distribution range, and the equipment needs to be frequently moved in a smaller range, which not only aggravates the operation interruption problem, but also may cause the equipment to collide with the grain depot wall and other equipment due to frequent turning and translation, which poses a safety hazard and a risk of equipment damage. In the operation stage of the present application, the folding wing assembly 300 can be unfolded outwardly to form a cooperative operation with the scraper 100, significantly expanding the operation coverage width of the whole machine. Through this structural innovation, the cleaning machine does not need to frequently adjust the position of the whole machine during the operation, and only the scraper 100 and the unfolded folding wing assembly 300 can realize the continuous grabbing and conveying of the large-area grain pile, which not only completely eliminates the dependence on frequent adjustment of the equipment by manual operation, but also greatly saves the labor cost. In the moving or transfer stage of the cleaning machine, the folding wing assembly 300 can be retracted towards the scraper 100, effectively controlling the width of the cleaning machine, reducing the occupation of the space of the grain depot passage by the equipment, and ensuring the flexibility and safety during the moving process.

[0027] Please refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8In some embodiments, the folding wing assembly 300 comprises a spiral impeller for rotating the conveying material, and a driving mechanism for switching between the first use state and the second use state, which is arranged at the end of the spiral impeller away from the harvester 100. The driving mechanism comprises a driving motor 303 and a driving wheel 311, a first transmission mechanism is arranged between the driving motor 303 and the driving wheel 311, a second transmission mechanism is arranged between the driving motor 303 and the spiral impeller, and the first transmission mechanism and the second transmission mechanism have different transmission ratios. The folding wing assembly 300 comprises a housing 301, which is rotatably connected to one side of the harvester 100. The housing 301 is provided with a base plate 302 on one side, and the base plate 302 is provided with the driving motor 303. The conveying end of the driving motor 303 is connected with a double-row sprocket 304. The housing 301 is internally provided with a driving shaft 305, one end of which is connected with a blade shaft 306, and the surface of the blade shaft 306 is provided with spiral blades 307. The other end of the driving shaft 305 extends to the outside of the housing 301 and is provided with a differential bearing 308. The surface of the driving shaft 305 and the outside of the housing 301 are provided with a second sprocket 313. The surface of the differential bearing 308 is provided with a differential bearing frame 310, one side of which is provided with the driving wheel 311, and the surface of the differential bearing frame 310 is provided with a first sprocket 312. The folding wing assembly 300 further comprises two chains 309, one of which is engaged with the first sprocket 312 and the double-row sprocket 304, and the other of which is engaged with the second sprocket 313 and the double-row sprocket 304. The first transmission mechanism comprises the double-row sprocket 304, the chain 309, the differential bearing frame 310, the differential bearing 308, and the first sprocket 312, and the second transmission mechanism comprises the double-row sprocket 304, the chain 309, and the second sprocket 313.

[0028] In the embodiment, the folding wing assembly 300 is attached to one side of the walking chassis 200 in the idle state, at which time the rotation direction of the spiral blade 307 is horizontal to the feeding direction of the inlet of the valley scraper 100. When work is needed, the driving motor 303 is started to drive the first sprocket 312 and the second sprocket 313 through the double-row sprocket 304 and the chain 309, the driving wheel 311 is rotated by the differential bearing frame 310 during the rotation of the first sprocket 312, the folding wing assembly 300 moves away from the walking chassis 200 with the rotation connection point as the center during the rotation of the driving wheel 311, and the spiral blade 307 is perpendicular to the inlet of the valley scraper 100 when the folding wing assembly 300 reaches the limited position, wherein the rotation of the differential bearing 308 does not drive the rotation of the driving shaft 305 because the differential bearing 308 is arranged on the surface of the driving shaft 305. The rotation of the second sprocket 313 drives the rotation of the driving shaft 305, and then the blade shaft 306 and the spiral blade 307 rotate synchronously, wherein the spiral blade 307 transports the grain to the direction of the valley scraper 100 during the rotation to facilitate the transportation of the valley scraper 100. The folding wing assembly 300 is arranged on both sides to transport the grain on both sides of the grain cleaning machine to the head of the valley scraper. The above arrangement can greatly increase the working area of the machine, achieve the original grain output effect without frequent movement of the machine, save labor cost, and improve the grain output efficiency.

[0029] In the embodiment, the driving wheel 311 is connected to the first sprocket 312 through the differential bearing frame 310, the driving wheel 311 and the first sprocket 312 rotate synchronously, the differential bearing 308 is arranged on the driving shaft 305 to support the rotation of the differential bearing frame 310 with the first sprocket 312 without driving the rotation of the driving shaft 305, the blade shaft 306 is connected to the second sprocket 313 to make the blade shaft 306 and the second sprocket 313 rotate synchronously, the first sprocket 312 and the second sprocket 313 are of different specifications to realize differential rotation when driven by the driving motor 303, the number of motors is reduced to reduce the product cost under the premise of meeting the functional requirements of the rotation of the driving wheel 311 and the transportation of the grain, and the blade shaft 306 rotates at a high speed, and the driving wheel 311 does not need to rotate at a high speed, so that the transportation efficiency is ensured and the low rotation speed of the driving wheel 311 is met through different transmission ratios.

[0030] Please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8In some embodiments, the grain auger 100 comprises a conveying device and a machine head, the folding wing assembly 300 is rotatably connected to the machine head through a T-shaped shaft, the horizontal shaft sleeve of the T-shaped shaft is arranged on the shell of the folding wing assembly 300, and the vertical shaft sleeve of the T-shaped shaft is arranged on the shell of the machine head. Wherein further comprises a side plate 314, a connecting frame 315, a fixed shaft sleeve 316, a rotating shaft sleeve 317, a hinge pin 318 and a T-shaped rotating shaft 319, one end of the connecting frame 315 is arranged on one side of the side plate 314, the other end of the connecting frame 315 is connected to one side of the grain auger 100, the number of the fixed shaft sleeve 316 is two, and both of the fixed shaft sleeves 316 are arranged on the other side of the side plate 314, the hinge pin 318 passes through the fixed shaft sleeve 316, the T-shaped rotating shaft 319 and the fixed shaft sleeve 316 in sequence, the surface of the hinge pin 318 is threadedly connected with a bolt 320, the rotating shaft sleeve 317 is arranged on the top of the shell 301, one end of the T-shaped rotating shaft 319 passes through the rotating shaft sleeve 317, and the surface of the T-shaped rotating shaft 319 is provided with a threaded hole 321 for the bolt 320 to pass through.

[0031] In this embodiment, the T-shaped rotating shaft 319 is mainly composed of a hollow cylinder and a plug rod in T-shaped connection, when pre-installed, the hollow cylinder of the T-shaped rotating shaft 319 is arranged between the two fixed shaft sleeves 316, then the hinge pin 318 is taken out and sequentially passes through the fixed shaft sleeve 316, the hollow cylinder and the fixed shaft sleeve 316, and then connected with the bolt 320, and the hinge pin 318 is in abutting relationship with the fixed shaft sleeve 316 and the hollow cylinder, and because the connection position of the hinge pin 318 and the bolt 320 is larger than the size of the fixed shaft sleeve 316, the hinge pin 318 cannot be pulled out. After the plug rod of the T-shaped rotating shaft 319 passes through the rotating shaft sleeve 317, the corresponding bolt 320 passes through the threaded hole 321, and the plug rod and the rotating shaft sleeve 317 are in abutting relationship and the connection position of the bolt 320 is larger than the size of the rotating shaft sleeve 317, so that the plug rod cannot be pulled out through the rotating shaft sleeve 317, thus completing the installation and the connection between the grain auger 100 and the folding wing assembly 300. The above structure can limit the rotation angle of the shell 301, that is, the hinge pin 318, the hollow cylinder and the fixed shaft sleeve 316 are arranged so that the folding wing assembly 300 can only rotate around the hinge pin 318 as the center, when the folding wing assembly 300 is perpendicular to the running chassis 200, the shell 301 abuts against the side plate 314, thereby limiting the rotation angle of the folding wing assembly 300, and ensuring that the folding wing assembly 300 sends grain to the direction of the grain auger 100.

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 12In some embodiments, the walking chassis 200 is provided with a first lifting device for lifting the folding wing assembly 300 to form the second use state, the first lifting device comprising a lifting mechanism fixedly arranged on the walking chassis 200 and a lifting frame 322 arranged on the folding wing assembly 300; when the second use state is formed, the lifting mechanism cooperates with the lifting frame 322 to lift the folding wing assembly 300 to a set height, the lifting mechanism comprising an elevator fixedly arranged opposite the chassis and a receiving plate 205 extending to the side of the chassis, and a protrusion 206 arranged on the upper surface of the receiving plate; the lifting frame is provided with an elongated slot; when the second use state is formed, the protrusion 206 is located in the slot to limit the movement of the folding wing assembly 300 relative to the walking chassis. The walking chassis 200 comprises a chassis frame 201 and a driving assembly 202, the driving assembly 202 being arranged at the bottom of the chassis frame 201, the top of the chassis frame 201 being symmetrically provided with a first lead screw lifter 203 at the center of the chassis frame 201, the first lead screw lifter 203 having a first lifting lead screw 204, the bottom of the first lifting lead screw 204 being provided with the receiving plate 205, the top of the receiving plate 205 being provided with the protrusion 206, one side of the base plate 302 being provided with the lifting frame 322, the lifting frame 322 having a through hole for the receiving plate 205 to pass through, the top of the lifting frame 322 being provided with an opening 323, the protrusion 206 being capable of passing through the opening 323, further comprising a transmission shaft 213 for synchronously lifting the two first lead screw lifters 203. The first lifting device comprises the first lead screw lifter 203, the receiving plate 205, the protrusion 206, the lifting frame 322, and the opening 323.

[0033] In this embodiment, when the chassis frame 201 and the shell 301 are attached, the receiving plate 205 can be inserted into the perforation of the lifting frame 322, and the protrusion 206 is located in the opening 323, then rotating the No. 1 lead screw lifter 203 drives the lifting frame 322, the base plate 302, the shell 301 and the connecting structure thereof to perform lifting action, so that the folding wing assembly 300 is raised, that is, the shell and the connecting structure thereof are separated from the ground. Because the plug rod and the rotating shaft sleeve 317 are in abutting relationship and the bolt 320 connection position is larger than the size of the rotating shaft sleeve 317, the plug rod cannot be pulled out through the rotating shaft sleeve 317, so the shell 301 and the connecting structure thereof can rotate around the plug rod as the center, the rotating direction is perpendicular to the rotating direction of the driving wheel 311 driving the shell 301 and the connecting structure thereof, when the shell 301 and the connecting structure thereof rotate around the plug rod as the center, the driving wheel 311 can be separated from the ground, so that subsequent only needs to pull the walking chassis 200 to drive the displacement of the warehouse cleaner. It should be noted that the opening 323 is an elongated slot, the protrusion 206 will displace in the opening 323, that is, before lifting, the protrusion 206 will be located at one end of the opening 323, during lifting, the protrusion 206 will slide in the opening 323, until it slides to the other end of the opening 323, at this time, it is the set angle of the folding wing assembly 300, that is, to ensure that the driving wheel 311 is separated from the ground, at the same time, the folding wing assembly 300 area structure is not in contact with the ground. The transmission shaft 213 is provided to synchronize the lifting of the two No. 1 lead screw lifters 203, so that the two receiving plates 205 can simultaneously lift one side of the two folding wing assemblies 300, to reduce the operation strength of the operator.

[0034] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 11In some embodiments, the machine head is rotationally connected with the walking chassis 200, and a second lifting device is arranged between the walking chassis 200 and the conveying device, and the second lifting device is used to adjust the distance between the machine head and the ground. The top of the chassis frame 201 is centrally symmetrically provided with a second lead screw lifter 207, and the second lead screw lifter 207 has a second lead screw 208, the top of the second lead screw 208 is provided with a connecting plate 209, the connecting plate 209 is provided with a first vertical bearing seat 210, and the lifting rotating shaft 211 and the fixed rotating shaft 212 are further included, the two ends of the lifting rotating shaft 211 are respectively connected with the first vertical bearing seat 210, the top of the chassis frame 201 is provided with a second vertical bearing seat 214, the two ends of the fixed rotating shaft 212 are respectively connected with the second vertical bearing seat 214, and the first shell 101 and the second shell 102 are further included, the first shell 101 and the second shell 102 are arranged on the surface of the valley plough 100, the two sides of the first shell 101 and located outside the valley plough 100 are provided with a sliding groove 103, the lifting rotating shaft 211 passes through the sliding groove 103, the fixed rotating shaft 212 passes through the second shell 102, the height of the second vertical bearing seat 214 is higher than the height of the first vertical bearing seat 210, and the transmission shaft 213 is further included, and the transmission shaft 213 is used to realize synchronous lifting of the two second lead screw lifters 207. The second lifting device includes the second lead screw lifter 207, the second lead screw 208, the connecting plate 209, the first vertical bearing seat 210, the lifting rotating shaft 211, the fixed rotating shaft 212, the second vertical bearing seat 214, the first shell 101, the second shell 102, and the sliding groove 103.

[0035] In this embodiment, the second lead screw lifter 207 drives the connecting plate 209 to change the height of the first vertical bearing seat 210 through the second lead screw 208, and then drives the lifting rotating shaft 211 to change the height. The end of the valley scraper 100 is driven to change the height by lifting the first housing 101, and the height of the fixed rotating shaft does not change. During the height change of the end of the valley scraper 100 for collecting material by the second lead screw lifter 207, the fixed rotating shaft 212 will rotate as the center. The distance between the valley scraper 100 and the ground can be adjusted by the above structure to realize the switching between the valley scraping and the rotating field working conditions. At the same time, the lifting action of the valley scraper 100 can also drive one side of the folding wing assembly 300 to lift by the connecting frame 315 and the side plate 314 through the fixed shaft sleeve 316, the rotating shaft sleeve 317 and the T-shaped rotating shaft 319, so that the folding wing assembly 300 is lifted to be horizontal to ensure the horizontal stability of the folding wing assembly. The chute 103 is in a long strip shape, and the restriction of the chute 103 makes the lifting rotating shaft 211 only displaceable in the long strip area, that is, the lifting angle of the inlet of the valley scraper 100 is limited. The arrangement of the transmission shaft 213 can drive the two second lead screw lifters 207 to lift at the same frequency, thereby ensuring the stability of the lifting action of the lifting rotating shaft 211 on the valley scraper 100, so as to avoid the situation that the valley scraper 100 is inclined or even turned over due to the inclination of the lifting rotating shaft 211.

[0036] Please refer to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 、 Figure 9 and Figure 10 In some embodiments, the end of the folding wing assembly 300 connected with the machine head is provided with a suspension type seat bearing, and the rotating shaft of the spiral impeller is arranged in the suspension type seat bearing. The inside of the shell 301 and away from the side of the driving motor 303 is provided with a suspension type seat bearing 324, one side of the suspension type seat bearing 324 is provided with a driven shaft 325, the other end of the driven shaft 325 is connected with the other end of the blade shaft 306, the differential bearing frame 310 is provided with a torque limiter 326, and the first sprocket 312 is arranged on the surface of the torque limiter 326.

[0037] In this embodiment, the driven shaft 325 is limited by the suspension type seat bearing 324 at the other end of the vane shaft 306, so that the vane shaft 306 drives the helical vane 307 to remain stable during rotation. The suspension type seat bearing 324 is relatively smaller in size compared to the rest of the bearing seat, thereby reducing the occupied area at the contact between the folding wing assembly 300 and the inlet of the valley scraper 100, effectively reducing the occurrence of grain jamming at the contact between the folding wing assembly 300 and the inlet of the valley scraper 100. The suspension type seat bearing 324 can maximize the space for grain to pass through, effectively increasing the passing efficiency of the grain. The torque limiter 326 can limit the torque of the second sprocket 313. When the driving wheel 311 has excessive resistance, the driving wheel 311 stops rotating, but the driving motor 303 continues to work, and the second sprocket 313 can continue to rotate through the chain 309, so that the driving shaft 305 drives the vane shaft 306 and the helical vane 307 to continue to work to transport the grain. In this process, the driving motor 303 can be protected, and the driving wheel 311 can be prevented from being excessively worn to prolong the service life of the driving wheel 311. This condition is widely applicable to the case where the driving wheel 311 is located in the grain pile, causing excessive resistance to the rotation of the driving wheel 311.

[0038] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 and Figure 8 In some embodiments, the helical impeller is externally provided with a safety protection mechanism. The back of the shell 301 is provided with a reinforcing plate 327. One end of the reinforcing plate 327 extends to the top of the shell 301 and is provided with a safety touch edge 328. The bottom of the shell 301 is detachably connected with a baffle 329. The back of the shell 301 is provided with a reinforcing rib 330. The other end of the reinforcing plate 327 is arranged on the top of the reinforcing rib 330. The baffle 329 is located below the reinforcing rib 330. The bottom of the machine base plate 302 is provided with a universal wheel 331.

[0039] In this embodiment, the shell 301 and the baffle 329 are arc-shaped, and are larger than the arc-shaped size shown in the rotation process of the spiral blade 307, and can guide the flow direction of the grain, so as to reduce the impact of grain splashing on the grain conveying effect in the grain conveying process. The safety touch edge 328 provided by the reinforcing plate 327 at the front end of the shell 301, when the foreign matter or person in front of the wing folding assembly 300 touches the safety touch edge 328, the cleaning machine will be automatically powered off, which enhances the protection effect of the cleaning machine on the workers during the working process. It should be noted that the safety touch edge 328 is a safety protection mechanism, and the distance between the safety touch edge 328 and the spiral blade 307 is spaced. The reinforcing rib 330 and the reinforcing plate 327 can improve the strength of the shell 301, and can prolong the service life of the shell 301 when it is subjected to grain splashing impact for a long time. The universal wheel 331 is provided to facilitate the displacement of the base plate 302 and the structure above it when the shell 301 and its connecting structure rotate around the hinge pin 318 as the center, so as to ensure the state of the driving motor 303 during rotation.

[0040] It should be noted that the torque limiter 326, the driving motor 303, the safety touch edge 328, the first lead screw lifter 203, and the second lead screw lifter 207 in the present disclosure need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the art, so it will not be described in detail; its power supply and principle are clear to those skilled in the art, and will not be described in detail here; the connection and installation of each part, the signal transmission principle belong to the prior art known to those skilled in the art. The driving motor 303 in the present application preferably adopts a R series gear driving motor, and the specific specification is WXR47-AM90-17.89-M1-YFB3-1.1kW-B5. The safety touch edge 328 preferably adopts SYD-A431-L2750mm, and the torque limiter 326 preferably adopts TL friction type torque limiter 326, and the specific specification is TL500-1-38 with 10A30 sprocket wheel torque range (47-210N.M).

[0041] Specifically, the working principle of the wing folding spiral cleaning machine provided by the present application is as follows: With the help of the driving assembly 202 on the walking chassis 200, the cleaning machine is moved to a suitable position, and then the first lead screw lifter 203 is rotated to continuously lower the receiving plate 205. The rotation shaft sleeve 317 and the T-shaped rotating shaft 319 limit the rotation of the shell 301 and its connecting structure around the plug of the T-shaped rotating shaft 319 as the center, until the driving wheel 311 and the universal wheel 331 are in contact with the ground. With the subsequent continuous lowering of the receiving plate 205 by the first lead screw lifter 203, the protrusion 206 is separated from the hole 323 and located in the perforation. The driving motor 303 is started, and the first sprocket 312 and the second sprocket 313 are rotated under the driving action of the double-row sprocket 304 and the chain 309. The first sprocket 312 rotates and drives the driving wheel 311 to rotate through the differential bearing frame 310. The driving wheel 311 rotates and is limited by the hollow cylinder of the hinge pin 318, the fixed shaft sleeve 316, and the T-shaped rotating shaft 319, so that the folding wing assembly 300 rotates away from the walking chassis 200 with the hinge pin 318 as the center, until the shell 301 and the side plate 314 abut each other, so that the shell 301 and the connecting structure cannot move. At this time, the rotating direction of the spiral blade 307 and the feeding direction of the feeding port of the grain plucking machine 100 are perpendicular. The first sprocket 312 rotates and drives the driving shaft 305 to rotate through the differential bearing 308, and then drives the blade shaft 306 and the spiral blade 307 to rotate synchronously. The spiral blade 307 rotates and transports the grain to the direction of the grain plucking machine 100, so as to facilitate the transportation work of the grain plucking machine 100. The driving wheel 311 is located in the grain depot and is easily trapped in the grain pile. At this time, the driving wheel 311 has too much resistance. At this time, the torque limiter 326 can limit the torque of the second sprocket 313. When the resistance of the driving wheel 311 is too large, the driving wheel 311 stops rotating, but the driving motor 303 continues to work. The second sprocket 313 can continue to rotate through the chain 309, so that the driving shaft 305 drives the blade shaft 306 and the spiral blade 307 to continue to work, so as to transport the grain.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A folding-wing spiral grain clearing machine, comprising a grain unloader and a traveling chassis, wherein the grain unloader is mounted on the traveling chassis, characterized in that, It also includes a folding wing assembly, which is rotatably connected to the side of the grain unloader and is used to convey materials to the feed inlet of the grain unloader. The folding wing assembly and the grain unloader form a first use state and a second use state. In the first use state, the folding wing assembly is perpendicular to the walking direction of the grain unloader. In the second use state, the folding wing assembly is parallel to the walking direction of the grain unloader.

2. The folding-wing spiral cleaning machine according to claim 1, characterized in that, The folding wing assembly includes a spiral impeller for rotating and conveying materials, and a drive mechanism for switching between a first use state and a second use state, the drive mechanism being located at the end of the spiral impeller away from the grain unloader.

3. The folding-wing spiral cleaning machine according to claim 2, characterized in that, The drive mechanism includes a drive motor and a drive wheel, with a first transmission mechanism between the drive motor and the drive wheel; and a second transmission mechanism between the drive motor and the spiral impeller, with the first transmission mechanism and the second transmission mechanism having different transmission ratios.

4. A folding-wing spiral grain clearing machine according to claim 1, wherein the grain clearing machine includes a conveying device and a machine head, and the folding wing assembly is rotatably connected to the machine head via a T-shaped shaft; the horizontal side bushing of the T-shaped shaft is disposed on the outer shell of the folding wing assembly, and the vertical side bushing of the T-shaped shaft is disposed on the outer shell of the machine head.

5. A folding-wing spiral cleaning machine according to claim 4, characterized in that, The chassis is equipped with a first lifting device for lifting the folding wing assembly to form the second usage state.

6. A folding-wing spiral cleaning machine according to claim 5, characterized in that, The first lifting device includes a lifting mechanism fixedly mounted on the chassis and a lifting frame mounted on the folding wing assembly; when the second use state is formed, the lifting mechanism cooperates with the lifting frame to lift the folding wing assembly to a set height.

7. A folding-wing spiral cleaning machine according to claim 6, characterized in that, The lifting mechanism includes a lift fixed relative to the chassis and a receiving plate extending to the side of the chassis, as well as a protrusion provided on the upper surface of the receiving plate; the lifting frame is provided with an elongated slot; when the second use state is formed, the protrusion is located in the slot to restrict the movement of the wing assembly relative to the nose.

8. A folding-wing spiral cleaning machine according to claim 6, characterized in that, The end of the folding wing assembly connected to the head is provided with a suspended bearing, and the rotating shaft of the helical impeller is located inside the suspended bearing.

9. A folding-wing spiral cleaning machine according to claim 2, characterized in that, The spiral impeller is equipped with a safety protection mechanism on its exterior.

10. A folding-wing spiral cleaning machine according to claim 4, characterized in that, The machine head is rotatably connected to the walking chassis, and a second lifting device is provided between the walking chassis and the machine head. The second lifting device is used to adjust the distance between the machine head and the ground.

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