CN112577311A - Formula of criticizing circulation grain drier top cereal shedding mechanism of preventing moisture backward flow - Google Patents
Formula of criticizing circulation grain drier top cereal shedding mechanism of preventing moisture backward flow Download PDFInfo
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- CN112577311A CN112577311A CN202011482861.XA CN202011482861A CN112577311A CN 112577311 A CN112577311 A CN 112577311A CN 202011482861 A CN202011482861 A CN 202011482861A CN 112577311 A CN112577311 A CN 112577311A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/009—Alarm systems; Safety sytems, e.g. preventing fire and explosions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/06—Grains, e.g. cereals, wheat, rice, corn
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a moisture backflow preventing grain throwing mechanism at the top of a batch type circulating grain dryer, which comprises a rotating seat, wherein the bottom of the rotating seat is fixedly connected with a driven gear, the driven gear is rotatably connected with a supporting shaft through a bearing, the supporting shaft is fixedly connected with an assembling plate, a speed regulating motor is arranged at the bottom of the assembling plate, an electric telescopic rod is arranged in the center of the assembling plate, and the movable part of the electric telescopic rod is connected with an arc-shaped blade through a universal joint and a pull rod. Thereby the range is shed to the adjustment cereal, and the toper cap that makes through setting up falls into the cereal of roating seat more even.
Description
Technical Field
The invention relates to the technical field of grain dryers, in particular to a moisture backflow preventing batch type circulating grain drying machine top grain throwing mechanism.
Background
China is the largest food producing country and consuming country in the world, and the annual total production of food is about 5 hundred million tons. According to statistics, the loss of grains in China after harvesting in the processes of threshing, airing, storing, transporting, processing, consuming and the like reaches about 18 percent and far exceeds the 5 percent standard specified by the grain agriculture organization of the United nations. In the loss, the loss of grains, such as mildew and germination, caused by the fact that the grains are not dried in the sun or reach safe moisture is up to 5 percent each year due to climate reasons, if the grains are produced by 5 hundred million tons per year, the loss is equivalent to 2500 ten thousand tons of grains, and if each person eats 500g of grains per day, 6.8 million persons can eat the grains for 1 year. This figure is surprising in the sense that mechanization of grain drying is more important than mechanization of field work, which is an important guarantee for high yield and harvest of grain, in the sense that loss of grain to the hands is minimized.
With the development of economy in recent years, high-efficiency and high-reliability combine harvesters are widely popularized and used in Guangzhou city, 1 harvester harvests several hectares of rice every day, the problem that the rice cannot be dried in the sun in time is increasingly prominent, and even if typhoon or rainy weather does not occur, the problem also exists, so that the grain dryer becomes a necessary choice.
Grain drying is an important step in agricultural production, is also a key link in agricultural production, and is also an important component for realizing whole-process mechanization of grain production. The grain drying machine mostly adopts a hot-blast stove or a burner to heat and dry air, the heated and dried air is pumped into a porous dry-wet exchange device as a carrier medium by a fan, grains are circularly conveyed into the dry-wet exchange device from top to bottom by a conveyor to perform heat-wet exchange with the dried hot air, and the moisture in the exchanged grains is continuously discharged outdoors by an exhaust fan through a special air duct.
The seed quality can be guaranteed by drying the seeds with the grain dryer, the mildew of grains can be reduced, the grain yield can be improved, the waist-cracking (broken rice) rate of the rice dried by the grain dryer can be reduced in the processing process, the rice quality can be improved, the income of farmers can be improved, people can eat rice with better taste, and the life quality can be improved. These all represent a necessity for the popularization of grain dryers.
The grain drier is used for drying grains such as corn, wheat, rice, rapeseed and the like, the yield of the early grain drier is small, and due to rapid development of modern agriculture, the yield of novel drying equipment is doubled.
Formula of wholesale circulation grain drier is a grain drying mechanized device, and grain sprinkling mechanism is the even machinery of throwing cereal, owing to in formula of wholesale circulation grain drier, people need fully contact cereal and hot-air, need so with cereal evenly distributed in the space, so need grain sprinkling mechanism. But current cereal shedding mechanism can not adjust the scope of shedding when using, and piles up cereal in the device easily, needs the manual work to clear up, and is very troublesome.
Disclosure of Invention
The invention aims to provide a batch type circulation grain drier top grain throwing mechanism capable of preventing moisture backflow, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a moisture backflow preventing grain sprinkling mechanism at the top of a batch type circulating grain dryer comprises a rotary seat, wherein a driven gear is fixedly connected to the bottom of the rotary seat, the driven gear is rotatably connected with a support shaft through a bearing, the bearing is in interference fit connection with the support shaft, the lower end of the support shaft is fixedly connected with an assembly plate, the driven gear is meshed with a driving gear, the driving gear is connected with the output end of a speed regulating motor through a transmission shaft, the speed regulating motor is installed at the bottom of the assembly plate, a plurality of assembly holes are formed in the edge of the assembly plate, an electric telescopic rod is installed in the center of the assembly plate, a guide plate is fixedly connected to a fixed part of the electric telescopic rod for one circle, a movable part of the electric telescopic rod is in sliding connection with the guide plate, one end, close to the edge of the rotary seat, of, the arc-shaped blade is connected with the rotating shaft through the connecting block in a rotating mode, the connecting block is three, the connecting block is arranged at one end of the arc-shaped blade, a notch groove corresponding to the connecting block is formed in the guide plate, the middle of one end, close to the connecting block, of the arc-shaped blade is connected with a pull rod through a universal joint, the universal joint is fixedly connected with the arc-shaped blade, and the other end of the pull rod is connected with the upper portion of the movable portion of.
As a further scheme of the invention: the rotary seat is circular, and the top surface of the rotary seat is inclined downwards from the center to the edge.
As a further scheme of the invention: a dust cover is arranged outside the speed regulating motor and fixedly connected with the bottom of the assembling plate through screws, and heat dissipation windows are arranged on two sides of the dust cover.
As a further scheme of the invention: and a heating plate is arranged in the rotary seat and is a low-temperature heating plate.
As a further scheme of the invention: two conducting rings are installed at the bottom of the rotary seat and are electrically connected with the heating plate, and mounting grooves corresponding to the conducting rings are formed in the bottom of the rotary seat.
As a further scheme of the invention: two conductive columns are installed on one side of the upper portion of the assembling plate and comprise conductive cores and insulating sleeves, and the conductive cores are arranged in the insulating sleeves.
As a further scheme of the invention: lead electrical pillar and install in the fixing base, fixed surface is connected on fixing base and the assembly panel, leads electrical pillar upper end and passes fixing base fixedly connected with conductive sliding block, conductive sliding block and conductive ring sliding connection are provided with the spout that corresponds with conductive sliding block in the conductive ring, lead the electrical pillar lower extreme and pass assembly panel fixedly connected with terminal, terminal and assembly seat fixed surface are connected.
As a further scheme of the invention: the guide plate is provided with six, and the guide plate is the arc, guide plate bottom and roating seat upper surface fixed connection.
As a further scheme of the invention: the top end of the movable part of the electric telescopic rod is fixedly connected with a conical cap.
As a further scheme of the invention: the universal joint comprises a universal ball, a ball shell and a fixed rod, the diameter of the universal ball in the ball shell is smaller than that of the inner wall of the ball shell, a connecting opening is formed in one side of the ball shell, the fixed rod is fixedly connected to the other side of the ball shell, and the pull rod is fixedly connected with the universal ball at the connecting opening.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the driving gear is driven to rotate by the arranged speed regulating motor, and the driven gear is driven to rotate, so that the rotating seat rotates, and grains are uniformly thrown out under the action of the guide plate and the arc-shaped blade;
2. the top surface of the rotating seat is obliquely and downwards arranged, so that grains are conveniently thrown out, the grains are more uniformly thrown, the grains are prevented from being accumulated on the rotating seat to influence the throwing efficiency, and the rotating seat needs to be manually cleaned after the grains are thrown, so that the operation is troublesome;
3. according to the invention, the smooth aluminum oxide layers are arranged on the surfaces of the rotating seat, the guide plate and the arc-shaped blade, so that the rotating seat is more wear-resistant, grains are more smoothly thrown, and the cleaning is convenient;
4. the rotating speed of the rotating seat is adjusted through the arranged speed regulating motor, so that the grain throwing range is adjusted, the grain throwing device is more flexible to use, dust is prevented from entering the speed regulating motor in the grain throwing process through the arranged dust cover to influence the service life of the speed regulating motor, and the heat dissipation efficiency of the speed regulating motor is improved through the arranged heat dissipation window;
5. according to the invention, the heating plate is arranged to preheat grains to be dried, so that the drying efficiency of the grains is improved;
6. the heating plate can still keep an electrified heating state in the rotating process of the rotating seat through the arranged conducting ring and the conducting slide block;
7. the safety of the conductive column is improved through the arranged insulating sleeve, so that the accidental electric shock of an operator is prevented;
8. the stability of the conductive column is improved through the arranged fixed seat, the phenomenon that the conductive sliding block and the conductive ring are in poor contact to generate electric sparks to cause fire due to the fact that the conductive column shakes and deforms and other factors is avoided, and the heating plate is conveniently connected with a power supply through the arranged wiring terminal to supply power;
9. according to the invention, the pull rod is driven to rotate by the telescopic electric telescopic rod, so that the arc-shaped blades are pushed to rotate, the direction of the arc-shaped blades is adjusted, and the grain throwing range is adjusted as required;
10. the grain spreading device has the advantages that the six guide plates and the arc-shaped blades are arranged, so that grains are more uniformly spread;
11. the universal joint is arranged to facilitate the rotation of the pull rod, so that the arc-shaped blade can rotate more smoothly;
12. according to the invention, the conical cap is arranged, so that grains falling into the rotary seat are more uniform, grains are more uniformly scattered, the contact area with hot air is larger, and the drying efficiency is higher.
Drawings
FIG. 1 is a schematic top view of a batch-type circulating grain dryer top grain-throwing mechanism for preventing moisture backflow.
FIG. 2 is a schematic view of the top grain throwing mechanism of a batch-type circulation grain dryer with moisture backflow prevention.
FIG. 3 is a schematic sectional view of the top grain throwing mechanism of a batch type circulation grain dryer for preventing moisture backflow.
FIG. 4 is an enlarged view of the grain throwing mechanism A of the top of the batch type circulation grain dryer for preventing the backflow of moisture.
FIG. 5 is an enlarged view of the grain throwing mechanism B of the top of the batch type circulation grain dryer for preventing the backflow of moisture.
In the figure: the device comprises a rotary seat 1, a driven gear 2, a bearing 3, a supporting shaft 4, an assembling plate 5, a driving gear 6, a transmission shaft 7, a speed regulating motor 8, a dust cover 9, a heat dissipation window 10, an assembling hole 11, a heating plate 12, a conducting ring 13, a sliding groove 14, a conducting post 15, a conducting core 16, an insulating sleeve 17, a fixed seat 18, a conducting slide block 19, a binding post 20, an electric telescopic rod 21, a flow guide plate 22, a rotating shaft 23, an arc-shaped blade 24, a connecting block 25, a notch groove 26, a universal joint 27, a pull rod 28, a conical cap 29, a universal ball 30, a ball shell 31, a fixing rod 32 and a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in the embodiment of the present invention, a moisture backflow preventing grain sprinkling mechanism at the top of a batch type circulation grain dryer comprises a rotary base 1, wherein the rotary base 1 is circular, the top surface of the rotary base 1 is inclined downwards from the center to the edge, so as to facilitate sprinkling grains, and more uniform sprinkling is performed, so as to prevent grains from accumulating on the rotary base 1 to affect the sprinkling efficiency, and the rotary base 1 needs to be manually cleaned after the sprinkling is completed, which is more troublesome, a driven gear 2 is fixedly connected to the bottom of the rotary base 1, the driven gear 2 is rotatably connected to a support shaft 4 through a bearing 3, the bearing 3 is in interference connection with the support shaft 4, the lower end of the support shaft 4 is fixedly connected to an assembly plate 5, the driven gear 2 is in meshing connection with a driving gear 6, the driving gear 6 is connected to the output end of a speed regulating motor 8 through a transmission shaft 7, the rotation speed of the rotary base 1 is regulated by, therefore, the range of grain throwing is adjusted, the grain throwing device is more flexible to use, the speed regulating motor 8 is installed at the bottom of the assembling plate 5, the dust cover 9 is arranged outside the speed regulating motor 8, dust is prevented from entering the speed regulating motor 8 in the grain throwing process to influence the service life of the speed regulating motor, the dust cover 9 is fixedly connected with the bottom of the assembling plate 5 through screws, heat dissipation windows 10 are arranged on two sides of the dust cover 9, the heat dissipation efficiency of the speed regulating motor 8 is improved, and a plurality of assembling holes 11 are formed in the edge of the assembling plate 5.
The heating plate 12 is arranged in the rotary seat 1, grains to be dried are preheated, the drying efficiency of the grains is improved, the heating plate 12 is a low-temperature heating plate, a fire disaster caused by overhigh temperature is avoided, the two conducting rings 13 are arranged at the bottom of the rotary seat 1, the conducting rings 13 are electrically connected with the heating plate 12, the bottom of the rotary seat 1 is provided with mounting grooves corresponding to the conducting rings 13, one side of the upper portion of the assembly plate 5 is provided with two conducting posts 15, each conducting post 15 comprises a conducting core 16 and an insulating sleeve 17, the conducting core 16 is arranged in the insulating sleeve 17, the safety of the conducting post 15 is improved, accidental electric shock of an operator is prevented, the conducting posts 15 are arranged in the fixed seat 18, the stability of the conducting posts 15 is improved, poor contact between the conducting slide blocks 19 and the conducting rings 13 due to the shaking deformation of the conducting posts 15 and, lead 15 upper ends of electrical pillar and pass fixing base 18 fixedly connected with electrically conductive slider 19, electrically conductive slider 19 and conducting ring 13 sliding connection, be provided with the spout 14 that corresponds with electrically conductive slider 19 in the conducting ring 13, it still can keep the state of ohmic heating at roating seat 1 rotation in-process to make heating plate 12 through the conducting ring 13 and the electrically conductive slider 19 that set up, lead electrical pillar 15 lower extreme and pass assembly plate 5 fixedly connected with terminal 20, a power supply is used for connecting, supply power to heating plate 12, terminal 20 and assembly seat 5 lower fixed surface are connected.
An electric telescopic rod 21 is arranged in the center of the assembling plate 5, a guide plate 22 is fixedly connected to the periphery of a fixing part of the electric telescopic rod 21, the movable part of the electric telescopic rod 21 is in sliding connection with the guide plate 22, six guide plates 22 are arranged to enable grains to be thrown more uniformly, the guide plate 22 is arc-shaped, the bottom of the guide plate 22 is fixedly connected with the upper surface of the rotary seat 1, one end, close to the edge of the rotary seat 1, of the guide plate 22 is rotatably connected with an arc-shaped blade 24 through a rotating shaft 23, smooth aluminum oxide layers are arranged on the surface of the rotary seat 1, the surface of the guide plate 22 and the surface of the arc-shaped blade 24 to enable the grain to be more wear-resistant, the grain is thrown more smoothly and convenient to clean at the same time, the arc-shaped blade 24 and the rotating shaft 23 are rotatably connected through a connecting block, arc blade 24 is close to the one end middle part of connecting block 25 and is connected with pull rod 28 through universal joint 27, universal joint 27 and 24 fixed connection of arc blade, universal joint 27's setting is convenient for pull rod 28's rotation, make arc blade 24's rotation more smooth and easy, the pull rod 28 other end passes through universal joint 27 and is connected with electric telescopic handle 21's movable part upper portion, electric telescopic handle 21 flexible drive pull rod 28 through setting up rotates, thereby promote arc blade 24 and rotate, adjustment arc blade 24's direction, thereby adjust the cereal scope of shedding as required, electric telescopic handle 21's movable part top fixedly connected with toper cap 29, make the cereal that falls into the roating seat more even, the cereal is shed more evenly, it is bigger with hot air area of contact, drying efficiency is higher.
It should be noted that the universal joint 27 includes a universal ball 30, a ball shell 31 and a fixing rod 32, the diameter of the universal ball 30 installed in the ball shell 31 is smaller than the diameter of the inner wall of the ball shell 31, a connection opening 33 is provided at one side of the ball shell 31, the fixing rod 32 is fixedly connected to the other side of the ball shell 31, and the pull rod 28 is fixedly connected to the universal ball 30 at the connection opening 33.
The working process of the invention is as follows: when using this cereal shedding device, at first start electric telescopic handle 21, the rotation of telescopic drive pull rod 28 through electric telescopic handle 21, pull rod 28 drives arc blade 24 and rotates, thereby adjust arc blade 24's direction, then energize heating plate 12 through the terminal, make its work, then start speed governing motor 8, adjust the rotational speed, it is rotatory to drive driven gear through the rotation of drive driving gear 6, thereby it is rotatory to make roating seat 1, cereal falls down from the top, preheat through heating plate 12, shed cereal evenly under guide plate 22 and arc blade 24's guide effect and carry out the drying.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a batch circulation grain drier top cereal shedding mechanism of preventing moisture backward flow, includes roating seat (1), its characterized in that, roating seat (1) bottom fixedly connected with driven gear (2), driven gear (2) rotate with back shaft (4) through bearing (3) and are connected, bearing (3) and back shaft (4) interference are connected, back shaft (4) lower extreme and assembly plate (5) fixed connection, driven gear (2) are connected with driving gear (6) meshing, driving gear (6) are connected with the output of buncher (8) through transmission shaft (7), buncher (8) are installed in assembly plate (5) bottom, assembly plate (5) limit portion is provided with a plurality of pilot holes (11), assembly plate (5) central authorities install electric telescopic handle (21), the fixed part a week fixed connection of electric telescopic handle (21) has guide plate (22), the movable part and guide plate (22) sliding connection of electric telescopic handle (21), the one end that guide plate (22) are close to roating seat (1) edge is rotated through pivot (23) and is connected with arc blade (24), arc blade (24) are rotated through connecting block (25) with pivot (23) and are connected, connecting block (25) are provided with threely, connecting block (25) set up in arc blade (24) one end, be provided with breach groove (26) that correspond with connecting block (25) on guide plate (22), arc blade (24) are close to the one end middle part of connecting block (25) and are connected with pull rod (28) through universal joint (27), universal joint (27) and arc blade (24) fixed connection, the pull rod (28) other end passes through universal joint (27) and is connected with the movable part upper portion of electric telescopic handle (21).
2. The top grain throwing mechanism of a moisture backflow preventing batch type circulation grain dryer according to claim 1, wherein the rotary base (1) has a circular shape, and the top surface of the rotary base (1) is inclined downward from the center to the edge.
3. The top grain throwing mechanism of the moisture backflow preventing batch type circulating grain dryer is characterized in that a dust cover (9) is arranged outside the speed regulating motor (8), the dust cover (9) is fixedly connected with the bottom of the assembling plate (5) through screws, and heat dissipation windows (10) are arranged on two sides of the dust cover (9).
4. The moisture backflow prevention batch type circulation grain drier top grain throwing mechanism according to claim 1, characterized in that a heating plate (12) is arranged in the rotary base (1), and the heating plate (12) is a low-temperature heating plate.
5. The moisture backflow preventing batch type circulating grain drier top grain throwing mechanism according to claim 1, wherein two conducting rings (13) are installed at the bottom of the rotary base (1), the conducting rings (13) are electrically connected with the heating plate (12), and a mounting groove corresponding to the conducting rings (13) is formed at the bottom of the rotary base (1).
6. The top grain throwing mechanism of the moisture backflow prevention batch type circulation grain dryer as claimed in claim 1, wherein two conductive columns (15) are installed on one side of the upper part of the assembly plate (5), the conductive columns (15) comprise a conductive core (16) and an insulating sleeve (17), and the conductive core (16) is arranged in the insulating sleeve (17).
7. The moisture backflow prevention batch type circulation grain drier top grain throwing mechanism according to claim 1, wherein the conductive column (15) is installed in a fixed seat (18), the fixed seat (18) is fixedly connected with the upper surface of the assembly plate (5), a conductive sliding block (19) is fixedly connected to the upper end of the conductive column (15) through the fixed seat (18), the conductive sliding block (19) is slidably connected with the conductive ring (13), a sliding groove (14) corresponding to the conductive sliding block (19) is formed in the conductive ring (13), a binding post (20) is fixedly connected to the lower end of the conductive column (15) through the assembly plate (5), and the binding post (20) is fixedly connected with the lower surface of the assembly seat (5).
8. The moisture backflow preventing batch type circulating grain drier top grain throwing mechanism as claimed in claim 1, wherein the number of the guide plates (22) is six, the guide plates (22) are arc-shaped, and the bottom of the guide plates (22) is fixedly connected with the upper surface of the rotary base (1).
9. The top grain throwing mechanism of the moisture backflow preventing batch type circulation grain dryer as claimed in claim 1, wherein a tapered cap (29) is fixedly connected to the top end of the movable portion of the electric telescopic rod (21).
10. The moisture backflow preventing batch type circulating grain drier top grain throwing mechanism as claimed in claim 1, wherein the universal joint (27) comprises a universal ball (30), a ball shell (31) and a fixing rod (32), the universal ball (30) is mounted in the ball shell (31), the diameter of the universal ball (30) is smaller than that of the inner wall of the ball shell (31), one side of the ball shell (31) is provided with a connecting opening (33), the fixing rod (32) is fixedly connected to the other side of the ball shell (31), and the pull rod (28) is fixedly connected with the universal ball (30) at the connecting opening (33).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482861.XA CN112577311B (en) | 2020-12-16 | 2020-12-16 | Batch type circulating grain dryer top grain throwing mechanism capable of preventing moisture from flowing back |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011482861.XA CN112577311B (en) | 2020-12-16 | 2020-12-16 | Batch type circulating grain dryer top grain throwing mechanism capable of preventing moisture from flowing back |
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| CN112577311A true CN112577311A (en) | 2021-03-30 |
| CN112577311B CN112577311B (en) | 2023-04-28 |
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