Multifunctional storage auxiliary machine for grain barrel type bin

Abstract

A multifunctional storage auxiliary machine for a grain barrel type bin comprises a rack, a telescopic buffering channel, a winch and a plurality of sliding rails, the telescopic buffering channel is vertically installed in the middle of the top of the barrel type bin in a suspended mode, and the upper end of the telescopic buffering channel is connected with a grain inlet pipe opening; the sliding rails are vertically fixed to the inner wall of the barrel type bin at intervals, each sliding rail is connected with the machine frame through a sliding limiting assembly, the machine frame comprises an outer fixing ring and a plurality of machine shell arm frames, one ends of the machine shell arm frames are connected into a whole through the outer fixing ring, and the other ends of the machine shell arm frames are connected into a whole. The other ends of the machine shell arm frames extend to the middle of the cylindrical bin and are connected with the bottom end of the telescopic buffering channel, and a spiral conveying mechanism is installed in each machine shell arm frame. The rack is suspended in the cylindrical bin through the winch, and the winch controls the rack to slide up and down along the sliding track. The multifunctional storage auxiliary machine has the functions of preventing grains from being broken, preventing grain impurities, automatically grading, leveling the surface of a grain pile, turning and raking the surface layer of the grain pile and assisting grain delivery.

Description

Technical Field

[0001] The present invention relates to the technical field of grain storage machinery, and particularly to a multi-functional storage auxiliary machine for a grain silo. Background Art

[0002] Silos include shallow silos, vertical silos, and square or polygonal silos with a height-to-diameter ratio greater than 2. Shallow silos and vertical silos, as typical silo types in China's grain storage and logistics, are widely used for their high degree of mechanization and automation and small floor area. However, the grain inlet of shallow silos and vertical silos is dozens of meters above the ground. Affected by the acceleration of gravity during the falling process of grain, the falling speed is fast, and broken grains are generated during the silo filling process, which affects the stability of grain storage. Moreover, due to the phenomenon of automatic grading, a large area of impurity gathering areas will be formed, seriously affecting the ventilation, cooling, chemical fumigation, controlled atmosphere storage and other grain storage technologies of the whole granary, resulting in poor grain quality, large amount of bacteria, strong respiration, and many eggs in this area, which is easy to cause condensation, heating and pest spread, seriously affecting the storage safety of grain. To reduce unnecessary losses, reduce labor intensity, improve the stability of grain storage, and increase economic benefits, it is necessary to add a distributor to the existing silos. Some grain inlet distributors for silos have also been reported in the open literature. For example: 1. Chinese Patent: An anti-breaking and anti-automatic grading grain inlet device, application number: 201520436693.9, application date: June 24, 2015, abstract: The utility model discloses an anti-breaking and anti-automatic grading grain inlet device, which includes a feed inlet opened on the silo top. A crushing reduction chute is arranged below the feed inlet. A plurality of discharge inclined chutes are arranged radially and obliquely along the inner side of the silo top. The discharge inclined chutes are arranged around the crushing reduction chute. A distributing hopper is arranged at the upper end of the crushing reduction chute. The upper port of the distributing hopper is communicated with the feed inlet, and the lower port of the distributing hopper is communicated with the crushing reduction chute. The side wall of the distributing hopper is provided with a discharge port matching the discharge inclined chute. The discharge inclined chute is connected to the distributing hopper through the discharge port. The lower end of the crushing reduction chute is axially communicated with a discharge pipe, and grain discharge ports are arranged in a uniformly distributed manner on the discharge pipe. The utility model not only effectively solves the problems of grain breaking and automatic grading, is beneficial to safe grain storage and improving grain quality, but also, as a construction component, solves the construction problem of the full hall scaffold required during the construction of the top cover of shallow silos and vertical silos.

[0003] 2. Chinese Patent: A Grain Feeding and Distributing Device for Shallow Silos, Application No.: 201310518927.X, Application Date: October 29, 2013, Abstract: A grain feeding and distributing device for shallow silos belongs to the technical field of grain storage equipment and is used to avoid automatic grading and grain breakage during the grain feeding process. The technical solution is as follows: It includes a distributor and a chute distributor, which are tanks with square upper and lower bottoms. The upper end of the distributor is installed below the grain inlet. The bottom of the distributor is divided into multiple square flow openings of the same area by steel plates. Each flow opening is connected to the upper end of a chute, and the lower ends of the chutes respectively correspond to the grain dropping points. A horizontally placed sieve plate is installed in the inner cavity of the distributor, and there are multiple sieve holes on the sieve plate. The positions of the sieve holes respectively correspond to the flow openings at the bottom of the distributor. The present invention can well solve the problem of automatic grading during the silo filling process, facilitate the application of advanced grain storage technologies such as fumigation, nitrogen filling, mechanical ventilation, and cooling with a grain chiller, reduce losses, improve the stability of grain storage, increase the benefits of grain storage, reduce the labor force, and lower the grain storage cost.

[0004] 3. Chinese Patent: A Grain Feeding and Distributing Device for Shallow Silos, Application No.: 201510942269.6, Application Date: December 16, 2015, Abstract: A grain feeding and distributing device for shallow silos belongs to the technical field of grain feeding equipment for shallow silos and is used to avoid automatic grading and grain breakage during the grain feeding process. The technical solution is as follows: An umbrella-shaped distributor is installed below the grain inlet. The circumferential surface of the distributor is divided into multiple areas by partitions. Each area is respectively connected to the upper end of a chute, and the lower ends of the chutes respectively correspond to the grain dropping points in the shallow silo. The grain dropping points are evenly distributed on the circumferential plane of the shallow silo. A pressure door is installed above the distributor. When the flow rates are different, the weight of soybeans on the pressure door is different, and the downward movement distance of the pressure door is different, resulting in different falling openings, thereby controlling the flow rate and achieving the purpose of uniform distribution. The present invention can well solve the problem of automatic grading during the silo filling process, facilitate the application of advanced grain storage technologies such as fumigation, nitrogen filling, mechanical ventilation, and cooling with a grain chiller, reduce losses, improve the stability of grain storage, increase the benefits of grain storage, reduce the labor force, and lower the grain storage cost.

[0005] 4. Chinese Patent: Multi-layer Distributed Feeder for Shallow Silos, Application No.: 201110103628.0, Application Date: April 25, 2011, Abstract: The present invention relates to a feeder for shallow silos, specifically a multi-layer distributed feeder for shallow silos, which includes a feed pipe vertically installed in the feed inlet at the top of the shallow silo. A grain inlet or outlet channel communicating with the feed pipe is connected to the lower side of the feed pipe, and this channel corresponds to the discharge outlet at the bottom of the shallow silo. A support frame connected to the channel is provided on the bottom of the silo. The present invention can not only make the grains form a multi-layer distribution, greatly reducing the automatic grading phenomenon generated during the self-flowing process of the grains; but also avoid the large drop generated when the grains flow into the channel, causing breakage; since the feeder is provided with several groups of pipe sections from top to bottom, the breakage rate of the grains can be further reduced; in addition, during the silo cleaning, the support frame at the bottom of the silo can be removed to make the entire feeder in a suspended state, facilitating the silo cleaning operation by the staff. After the operation is completed, the support frame can be reinstalled; moreover, the structure of the present invention is simple and occupies a small space in the silo body.

[0006] Through application investigation and research, it is found that the designs of both the rotary feeder and the cone-disk feeder are based on the ideal state that the grains are evenly distributed on the feeder. However, the actual situation is very complex. Due to the short inlet chute pipe and unstable conveying capacity, the flow trajectory of the grains in the short chute pipe is uncertain, making it impossible for the grains to be evenly distributed on the feeder, resulting in an unbalanced load on the feeder, generating eccentric motion, and the feeder cannot work under load for a long time. In addition, when the rotary feeder is in use, it will accelerate the throwing speed of the grains, increasing the breakage rate; during the process of the grains being thrown out, due to the different aerodynamic properties of each component, serious automatic grading will also occur for the grains, light impurities, large impurities, etc., and the quality of the grains in the silo cannot reach equilibrium.

[0007] The telescopic chute-type feeder is essentially the loading hose in the bulk grain discharging process, consisting of a winch system, a telescopic pipe, a steel wire rope, and a sensor. Although it has a relatively high degree of automation and has a certain effect on reducing the flow rate and breakage rate of the grains, the grain grading is relatively serious, which is not conducive to scientific grain storage; since the telescopic chute cannot be infinitely retracted, the telescopic chute for a 30-meter-high silo occupies at least 6 meters of height, reducing the silo capacity by about 500 tons.

[0008] The buffer plate-type feeder guides the grain flow to the silo wall through 6 sub-chute pipes installed at the lower part of the inlet chute pipe. The buffer plates fixed on the silo wall and arranged in an alternating manner change the original grain flow in a free-fall state into a reciprocating folding flow along the direction of the plate, thus decelerating and reducing the breakage rate. However, when discharging the grains, the overall flow of the grains has a great destructive force on the buffer plates on the silo wall, resulting in a large amount of maintenance. Due to the different fluidities of each component during the process of the grains being pushed from the silo wall to the center, there is still automatic grading; moreover, the supports of the buffer plates on the silo wall occupy a limited position in the silo, affecting the silo cleaning.

[0009] In addition, the above-mentioned distributor is fixedly installed, which only has a certain effect on preventing grain breakage and preventing impurity grading, but it cannot level the grain pile surface. To reduce the labor of leveling the grain pile surface, a relatively high space is left between the grain loading line and the warehouse top in the traditional cylindrical silo, increasing the construction cost of the silo. Moreover, when the grain pile surface is dew-condensed and caked, it is impossible to turn over and rake the surface layer of the grain pile, and workers need to enter the silo to turn over and rake the grain pile surface; during grain storage, it is necessary to sample and inspect the grain quality and conduct local ventilation of the grain pile, and the operation labor intensity is high using the existing technologies and equipment. Therefore, it is necessary to design a multifunctional storage auxiliary machine for a cylindrical grain silo. Summary of the Invention

[0010] The purpose of the present invention is to provide a multifunctional storage auxiliary machine for a cylindrical grain silo, which has multiple functions such as preventing grain breakage, preventing automatic grading of grain impurities, leveling the grain pile surface, turning over and raking the surface layer of the grain pile, and assisting in grain discharging from the silo.

[0011] In order to achieve the purpose of the present invention, the technical solution adopted is as follows: A multifunctional storage auxiliary machine for a cylindrical grain silo includes a frame, a telescopic buffer channel, a winch, and multiple sliding tracks. The telescopic buffer channel is vertically suspended and installed at the middle position of the top of the cylindrical silo, and the upper end of the telescopic buffer channel is connected to the grain inlet pipe at the middle position of the top of the cylindrical silo; the multiple sliding tracks are vertically and fixedly arranged at intervals on the inner wall of the cylindrical silo, and each sliding track is respectively connected to the frame through a sliding limit component. The sliding limit component can adopt a pulley type limit component or a slider type limit component, as long as it can satisfy sliding up and down on the sliding track and will not shift to the surrounding. The frame includes an outer fixed ring and multiple machine shell arm frames. One ends of the multiple machine shell arm frames are connected into a whole through the outer fixed ring, and the other ends of the multiple machine shell arm frames extend towards the middle of the cylindrical silo and are connected to the bottom end of the telescopic buffer channel. A screw conveyor mechanism is horizontally installed in each machine shell arm frame; the frame is suspended and installed in the cylindrical silo through a winch, and the winch controls the frame to slide up and down along the sliding track, thereby driving the telescopic and retraction of the telescopic buffer channel and the up and down movement of the screw conveyor mechanism.

[0012] Further preferably: The winch is fixedly installed on the top of the machine shell arm frame, and the steel wire rope of the winch is connected to the top of the cylindrical silo.

[0013] Further preferably: The telescopic buffer channel includes a blanking buffer funnel, an overflow buffer funnel, and a soft material tube. A plurality of blanking buffer funnels and overflow buffer funnels are fixedly installed at intervals in an alternating up-and-down structure inside the soft material tube. The soft material tube is a cloth material tube, a soft fiber tube, etc. The blanking buffer funnel includes a blanking buffer funnel body, and a blanking buffer funnel hole is provided at the bottom end of the blanking buffer funnel body. The overflow buffer funnel includes an overflow buffer funnel body, and an overflow buffer funnel hole is provided at the bottom end of the overflow buffer funnel body. Blanking buffer funnel connection ears are evenly distributed on the outer periphery of the top end of the blanking buffer funnel body, and overflow buffer funnel connection ears are evenly distributed on the outer periphery of the top end of the overflow buffer funnel body. The blanking buffer funnel connection ears and the overflow buffer funnel connection ears are fixedly installed through the soft material tube. The top diameter of the blanking buffer funnel body is larger than the top diameter of the overflow buffer funnel body, and the aperture of the blanking buffer funnel hole is larger than the aperture of the overflow buffer funnel hole. When feeding grain, the grain enters the soft material tube from the grain inlet pipe and falls down successively through the blanking buffer funnel and the overflow buffer funnel. Since the top diameter of the blanking buffer funnel body is larger than the top diameter of the overflow buffer funnel body and the aperture of the blanking buffer funnel hole is larger than the aperture of the overflow buffer funnel hole, when the grain falls from the blanking buffer funnel to the overflow buffer funnel, the overflow buffer funnel hole of the overflow buffer funnel is not in time to discharge the material, and the material will be discharged downward from the outer periphery of the top of the overflow buffer funnel into the lower blanking buffer funnel, alternating in turn to achieve the buffer of the falling grain and prevent the grain from being broken during the falling process. When the screw conveyor mechanism rises as a whole, it drives the telescopic buffer channel to rise and contract, and the blanking buffer funnel and the overflow buffer funnel are stacked.

[0014] Further preferably: String holes are respectively provided on the blanking buffer funnel connection ears and the overflow buffer funnel connection ears, and a string rope is strung from top to bottom in the string holes. The string rope strings a plurality of blanking buffer funnels and overflow buffer funnels. When the winch controls the overall lifting and lowering of the screw conveyor mechanism, it drives the telescopic buffer channel to move up and down synchronously and expand and contract.

[0015] Further preferably: The blanking buffer funnel connection ears and the overflow buffer funnel connection ears are fixedly connected to the outside of the soft material tube through fixing ring buckles.

[0016] Further preferably: The ends of the plurality of housing boom arms close to the telescopic buffer channel are connected into one body through an inner fixing ring. The housing boom arms and the screw conveyor mechanism are fixed into one body through an outer fixing ring and an inner fixing ring, which can better realize the overall lifting and scraping of the grain surface by the plurality of screw conveyor mechanisms.

[0017] Further preferably, a negative pressure grain suction device capable of extracting grain samples through a metal pipe and assisting the air duct of a single-tube fan to insert into the grain pile is installed on the casing boom. The negative pressure grain suction device can adopt the structure of a suction type sampler. After the negative pressure grain suction device is fixedly installed on the casing boom, only manual auxiliary intubation is required to carry out the sampling work, without the need for manual holding of the sampler, reducing the labor intensity. When discharging grain, an extended pipe can be externally connected to the suction air duct of the negative pressure grain suction device to suck and clean the residual grain and dust in the granary, avoiding the harm of dust during manual cleaning and improving the work efficiency at the same time.

[0018] Further preferably, the screw conveyor mechanism includes a driving motor, a reducer, and a screw conveyor shaft. The screw conveyor shaft is rotatably installed in the casing boom through a pedestal bearing. The screw conveyor shaft is arranged along the length direction of the casing boom. One end of the screw conveyor shaft is connected to the driving motor through the reducer, and screw blades are arranged on the screw conveyor shaft. The casing boom and the screw conveyor mechanism are radially and horizontally evenly distributed on the outer periphery of the telescopic buffer channel. The casing boom is in the shape of an arc groove with an open bottom. The casing boom can also adopt a frame structure as long as it can meet the support and installation of the screw conveyor shaft.

[0019] The multifunctional storage auxiliary machine for this grain silo controls the overall screw conveyor mechanism to move up and down along the sliding track according to the height of the grain pile through a winch. When loading grain, the winch lowers the overall screw conveyor mechanism to the lowest position, and the telescopic buffer channel follows and extends, playing a buffering role for the falling grain to prevent the grain from being broken during the falling process, having the function of preventing grain breakage; the screw conveyor mechanism pushes the grain falling from the telescopic buffer channel to the surroundings, which can reduce the classification of grain and impurities, having the automatic classification effect of preventing grain and impurities, and can level the grain pile surface, facilitating the subsequent grain storage management work; when the surface of the grain pile is caked, the screw conveyor mechanism is started, and the screw blades are used to turn and rake the surface of the grain pile to avoid the caking and airtightness of the grain panel; when discharging grain, through the forward and reverse rotation of the screw conveyor mechanism, the grain far from the grain outlet can be guided to the grain outlet to assist in discharging grain. In addition, after a negative pressure grain suction device is fixedly installed on the casing boom of the screw conveyor mechanism, only manual auxiliary intubation is required to carry out the sampling work, without the need for manual operation of holding the sampler, reducing the labor intensity. When discharging grain, an extended pipe can be externally connected to the suction air duct of the negative pressure grain suction device to suck and clean the residual grain and dust in the granary, avoiding the harm of dust during manual cleaning and improving the work efficiency at the same time. Description of the Drawings

[0020] Figure 1 is the layout elevation structure schematic diagram of the multifunctional storage auxiliary machine for this grain silo; Figure 2 is Figure 1 the layout top view schematic diagram of the screw conveyor mechanism in Figure 3Schematic elevation structure diagram of the telescopic buffer channel; Figure 4 Schematic elevation structure diagram of the blanking buffer funnel; Figure 5 For Figure 4 Top view schematic diagram of Figure 6 Schematic elevation structure diagram of the overflow buffer funnel; Figure 7 For Figure 6 Top view schematic diagram of Figure 8 Schematic structure diagram of the conveyor; The component names of the serial numbers in the figure are: 1. Cylindrical silo, 2. Sliding track, 3. Sliding limit component, 4. Winch, 5. Machine shell boom, 6. Telescopic buffer channel, 7. Grain inlet pipe, 8. Negative pressure grain suction device, 9. Outer fixed ring, 10. Screw conveyor mechanism, 11. Inner fixed ring, 12. Blanking buffer funnel, 13. Overflow buffer funnel, 14. Fixed ring buckle, 15. Soft material pipe, 16. Blanking buffer funnel connecting ear, 17. Serial connection hole, 18. Blanking buffer funnel body, 19. Blanking buffer funnel hole, 20. Overflow buffer funnel body, 21. Overflow buffer funnel hole, 22. Overflow buffer funnel connecting ear, 23. Driving motor, 24. Reducer, 25. Screw conveyor shaft, 26. Bearing with housing, 27. Grain outlet. Embodiment

[0021] For a clearer description of the present technology, the following embodiments further elaborate on the present technology. Embodiment

[0022] A multifunctional storage auxiliary machine for a grain cylindrical silo, which includes a frame, a telescopic buffer channel 6, a winch 4 and multiple sliding tracks 2. The telescopic buffer channel 6 is vertically suspended and installed at the middle position of the top of the cylindrical silo 1, and the upper end of the telescopic buffer channel 6 is connected to the grain inlet pipe 7 at the middle position of the top of the cylindrical silo 1. The multiple sliding tracks 2 are vertically and spacedly fixed on the inner wall of the cylindrical silo 1, and each sliding track 2 is respectively connected to the frame through a sliding limit component 3. The frame includes an outer fixed ring 9 and multiple machine shell booms 5. One ends of the multiple machine shell booms 5 are connected into one body through the outer fixed ring 9, and the other ends of the multiple machine shell booms 5 extend towards the middle of the cylindrical silo 1 and are connected to the bottom end of the telescopic buffer channel 6. A screw conveyor mechanism 10 is horizontally installed in each machine shell boom 5. The frame is suspended and installed in the cylindrical silo 1 through the winch 4, and the winch 4 controls the frame to slide up and down along the sliding track 2, thereby driving the telescopic movement of the telescopic buffer channel 6 and the up and down movement of the screw conveyor mechanism 10.

[0023] The described hoist 4 is fixedly installed at the top of the housing boom 5, and the steel wire rope of the hoist 4 is connected to the top of the cylindrical silo 1.

[0024] The described telescopic buffer channel 6 includes a feeding buffer funnel 12, an overflow buffer funnel 13, and a soft material pipe 15. A plurality of feeding buffer funnels 12 and overflow buffer funnels 13 are fixedly installed at intervals in an alternating up-and-down structure inside the soft material pipe 15. The feeding buffer funnel 12 includes a feeding buffer funnel body 18, and a feeding buffer funnel hole 19 is provided at the bottom end of the feeding buffer funnel body 18. The overflow buffer funnel 13 includes an overflow buffer funnel body 20, and an overflow buffer funnel hole 21 is provided at the bottom end of the overflow buffer funnel body 20. The outer periphery of the top end of the feeding buffer funnel body 18 is evenly provided with feeding buffer funnel connecting ears 16, and the outer periphery of the top end of the overflow buffer funnel body 20 is evenly provided with overflow buffer funnel connecting ears 22. The feeding buffer funnel connecting ears 16 and the overflow buffer funnel connecting ears 22 are fixedly installed outside the soft material pipe 15 in a penetrating manner. The top diameter of the feeding buffer funnel body 18 is larger than the top diameter of the overflow buffer funnel body 20, and the aperture of the feeding buffer funnel hole 19 is larger than the aperture of the overflow buffer funnel hole 21.

[0025] The described feeding buffer funnel connecting ears 16 and overflow buffer funnel connecting ears 22 are respectively provided with series connection holes 17, and a series connection rope is strung from top to bottom in the series connection holes 17. The series connection rope strings a plurality of feeding buffer funnels and overflow buffer funnels. When the hoist 4 controls the overall lifting of the screw conveyor mechanism 10, it drives the telescopic buffer channel 6 to move up and down synchronously for telescoping.

[0026] The described feeding buffer funnel connecting ears 16 and overflow buffer funnel connecting ears 22 are fixedly connected to the outside of the soft material pipe 15 through fixing ring buckles 14.

[0027] The ends of the plurality of housing booms 5 close to the telescopic buffer channel 6 are connected into one body through an internal fixing ring 11. The housing boom and the screw conveyor mechanism are fixed into one body through an external fixing ring and an internal fixing ring, which can better realize the overall lifting and scraping of the grain surface by the plurality of screw conveyor mechanisms.

[0028] A negative pressure grain suction device 8 capable of extracting grain samples through a metal pipe and assisting the air pipe of a single-tube fan to insert into the grain pile is installed on the housing boom 5. The negative pressure grain suction device can adopt the structure of a suction type sampling device. After the negative pressure grain suction device is fixedly installed on the housing boom, only manual auxiliary intubation is required to carry out the sampling work, and there is no need to hold the sampling device manually, reducing the labor intensity. When discharging grain, the suction air pipe of the negative pressure grain suction device can be externally connected with an extension pipe to suck and clean the remaining grain and dust in the granary, avoiding the harm of dust during manual cleaning, and improving the work efficiency at the same time.

[0029] The described screw conveyor mechanism 10 includes a driving motor 23, a speed reducer 24, and a screw conveyor shaft 25. The screw conveyor shaft 25 is rotatably installed in the housing boom 5 through a pedestal bearing 26. The housing boom is in the shape of an arc groove with an open bottom. The screw conveyor shaft 25 is arranged along the length direction of the housing boom 5. One end of the screw conveyor shaft 25 is connected to the driving motor 23 through the speed reducer 24. Screw blades are provided on the screw conveyor shaft 25. The housing boom and the screw conveyor mechanism are radially and horizontally evenly distributed on the outer periphery of the telescopic buffer channel.

[0030] During the grain feeding operation, the winch 4 slides the housing boom 5 and the screw conveyor mechanism 10 as a whole downward along the sliding track 2 to the lowest position, driving the telescopic buffer channel 6 to lower and extend. Grains enter the flexible material pipe 15 from the grain inlet pipe 7, and are buffered and decelerated by the feeding buffer funnel 12 and the overflow buffer funnel 13 in the flexible material pipe 15, reducing the vertical falling height and reducing broken grains. The driving motor 23 of the screw conveyor mechanism 10 drives the screw conveyor shaft 25 to rotate, and the screw blades scrape and push the grains falling from the flexible material pipe 15 to the surroundings. The winch 4 controls the housing boom 5 and the screw conveyor mechanism 10 to slide upward along the sliding track 2, driving the telescopic buffer channel 6 to rise along the height of the grain surface, ensuring that the screw blades of the screw conveyor shaft 25 of the screw conveyor mechanism 10 scrape the grain surface, avoiding automatic classification of grains and impurities after falling; when the grain feeding ends and the screw blades of the screw conveyor shaft 25 level the grain surface, the winch 4 lifts the housing boom 5 and the screw conveyor mechanism 10 as a whole away from the grain surface, and at the same time drives the telescopic buffer channel 6 to contract; when the surface of the grain pile is caked, lower the housing boom 5 and the screw conveyor mechanism 10 as a whole, and the screw blades of the screw conveyor shaft 25 contact the grain surface, start the driving motor 23 to work, and use the screw blades of the screw conveyor shaft 25 to turn and rake the grain surface to avoid airtight caking of the grain surface.

[0031] When grain needs to be discharged, first open the grain outlet 27. A part of the grain flows out freely. The part that cannot flow out is reversed by the screw conveyor mechanism 10 to send the grains around to the middle, and the screw conveyor mechanism 10 connected to the grain outlet 27 rotates forward to send the grains in the middle to the grain outlet 27 for discharging from the warehouse, realizing auxiliary grain discharging.

[0032] When sampling work is required, install the cutting pipe manually, start the negative pressure grain suction device 8 to work for sampling, and for local air blowing and temperature reduction. After grain discharging, an extended pipe can be externally connected to the suction pipe of the negative pressure grain suction device 8 to suck and clean the remaining grains and dust in the granary, avoiding the harm of dust to manual cleaning, and at the same time improving work efficiency.

[0033] The above description is not a limitation of this application, and this application is not limited to the above examples. Those skilled in the art, within the scope of the essence of this application, any changes, modifications, additions, or substitutions should belong to the protection scope of this application.

Claims

1. A multi-functional storage auxiliary machine for a grain silo, characterized in that: It includes a frame, a telescopic buffer channel (6), a winch (4) and multiple sliding tracks (2). The telescopic buffer channel (6) is vertically suspended and installed at the middle position of the top of the cylindrical silo (1), and the upper end of the telescopic buffer channel (6) is connected to the grain inlet pipe (7) of the cylindrical silo (1); the multiple sliding tracks (2) are vertically and fixedly arranged at intervals on the inner wall of the cylindrical silo (1), and each sliding track (2) is connected to the frame through a sliding limit assembly (3). The frame includes an outer fixing ring (9) and multiple housing booms (5). One ends of the multiple housing booms (5) are connected together through the outer fixing ring (9), and the other ends of the multiple housing booms (5) extend towards the middle of the cylindrical silo (1) and are connected to the bottom end of the telescopic buffer channel (6). A screw conveyor mechanism (10) is horizontally installed in each housing boom (5); the frame is suspended and installed in the cylindrical silo (1) through the winch (4), and the winch (4) controls the frame to slide up and down along the sliding track (2).

2. The multi-functional storage auxiliary machine for grain silos according to claim 1, wherein: The winch (4) is fixedly installed at the top of the housing boom (5), and the steel wire rope of the winch (4) is connected to the top of the cylindrical silo (1).

3. The multi-functional storage auxiliary machine for grain silos according to claim 1, characterized in that: The telescopic buffer channel (6) includes a blanking buffer funnel (12), an overflow buffer funnel (13) and a soft material pipe (15). Multiple blanking buffer funnels (12) and overflow buffer funnels (13) are fixedly installed at intervals in an up-and-down structure in the soft material pipe (15).

4. The multi-functional storage auxiliary machine for grain silos according to claim 1, characterized in that: The ends of the multiple housing booms (5) close to the telescopic buffer channel (6) are connected together through an inner fixing ring (11).

5. The multi-functional storage auxiliary machine for grain silos according to claim 1, characterized in that: A negative pressure grain suction device (8) capable of extracting grain samples through a metal pipe and assisting the air pipe of a single-tube fan to insert into the grain pile is installed on the housing boom (5).

6. The multi-functional storage auxiliary machine for grain silos according to claim 1, characterized in that: The screw conveyor mechanism (10) includes a driving motor (23), a reducer (24) and a screw conveyor shaft (25). The screw conveyor shaft (25) is rotatably installed in the housing boom (5) through a pedestal bearing (26). The screw conveyor shaft (25) is arranged along the length of the housing boom (5). One end of the screw conveyor shaft (25) is connected to the driving motor (23) through the reducer (24), and screw blades are arranged on the screw conveyor shaft (25).

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