A conveying mechanism for grain drying, a grain dryer and a grain processing technology

Abstract

The present invention relates to the technical field of grain processing, and in particular to a conveying mechanism for grain drying, a grain dryer and a grain processing process, comprising a dryer body, a Tesla-like valve conveying structure, a width adjustment transmission shaft and a driving device; the dryer body comprises a shell, a feed guide groove, a discharge port and support legs; the Tesla-like valve conveying structure has a plurality of Tesla-like valve conveying structures, the feed end of the Tesla-like valve conveying structure is connected to the feed guide groove, and the discharge end of the Tesla-like valve conveying structure is connected to the discharge port; the width adjustment transmission shaft is used to adjust the width of the Tesla-like valve conveying structure; the driving device is used to drive the width adjustment transmission shaft to rotate; by setting the Tesla-like valve conveying structure, the Tesla-like valve conveying structure can reduce the falling speed of the grain to be dried inside it, prolong the transfer time of the grain to be dried inside the Tesla-like valve conveying structure, so that the grain to be dried has a longer drying time, thereby making the grain drier and prolonging the storage time.

Description

Technical Field

[0001] The invention relates to the technical field of grain processing, and in particular to a conveying mechanism for grain drying, a grain dryer and a grain processing technology. Background Art

[0002] my country is a country with a large population and needs to store a large amount of grain to deal with various emergencies. Therefore, the storage of grain after harvest is extremely important. Using a dryer to dry grain can ensure the quality of the grain and reduce the chance of grain mildew.

[0003] Existing grain dryers are mainly divided into cross-flow dryers, mixed-flow dryers and co-flow dryers; among them, mixed-flow dryers are produced more frequently, and most mixed-flow dryers are tower structures composed of triangular or pentagonal boxes arranged in a staggered manner. Grains are dried during transportation. Since the grains move too fast when passing through the dryer, the grain drying time is short, and the drying effect on mixed grains is poor. Summary of the invention

[0004] In view of the problems existing in the prior art, a conveying mechanism for drying grains is provided. The present application sets up a Tesla-like valve conveying structure, which can reduce the falling speed of the grains to be dried inside the Tesla-like valve conveying structure and prolong the transfer time of the grains to be dried inside the Tesla-like valve conveying structure, so that the grains to be dried have a longer drying time, thereby making the grains drier and prolonging the storage time.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] A conveying mechanism for grain drying, comprising a dryer body, a Tesla-like valve conveying structure, a width adjustment transmission shaft and a driving device;

[0007] The dryer body includes a shell, a feed guide chute, a discharge port and support legs;

[0008] A high-temperature air inlet is provided on one side wall of the shell, and a low-temperature air outlet is provided on the other side wall of the shell;

[0009] There are a plurality of feed guide grooves, which are parallel to each other and arranged in parallel at the upper end of the shell body and connected to the shell body;

[0010] The discharge port is arranged at the bottom of the shell and connected to the shell;

[0011] There are four supporting legs, which are respectively arranged at four corners of the bottom of the shell;

[0012] There are several Tesla-like valve conveying structures, and several Tesla-like valve conveying structures are arranged in parallel and side by side inside the shell, and the Tesla-like valve conveying structure includes a first clamping plate, a second clamping plate, a first baffle plate, a second baffle plate, a first mounting frame and a second mounting frame; the first clamping plate and the second clamping plate are arranged in parallel, and a conveying cavity is formed between the first clamping plate and the second clamping plate, the upper end of the conveying cavity is connected with the feed guide groove, and the lower end of the conveying cavity is connected with the discharge port; there are several first baffle plates, and several first baffle plates are arranged obliquely in the conveying cavity between the first clamping plate and the second clamping plate, and the inclined wall surface on one side of the first baffle plate is parallel to the first clamping plate; there are several second baffle plates, and several second baffle plates are arranged obliquely in the conveying cavity between the first clamping plate and the second clamping plate, and the inclined wall surface on one side of the second baffle plate is parallel to the second clamping plate; there are two first mounting frames, and the two first mounting frames are respectively installed at the two ends of the first clamping plate, and the two ends of the first baffle plate are respectively connected to the two first mounting frames; there are two second mounting frames, and the two second mounting frames are respectively installed at the two ends of the second clamping plate, and the two ends of the second baffle plate are respectively connected to the two second mounting frames;

[0013] There are four width adjustment transmission shafts, which are used to adjust the width of the conveying cavity and simultaneously adjust the distance between the first baffle and the first clamping plate, and between the second baffle and the second clamping plate;

[0014] The driving device is used for driving the width adjustment transmission shaft to rotate.

[0015] Preferably, the first clamping plate has four corners each with a first threaded hole; the second clamping plate has four corners each with a second threaded hole; the width adjustment transmission shaft includes a first threaded column, a second threaded column, a third threaded column and a fourth threaded column;

[0016] The first threaded column cooperates with the first threaded hole of the first first clamping plate, a first transmission column is arranged at one end of the first threaded column, and the first transmission column is connected to the housing through a bearing;

[0017] The second threaded column cooperates with the second threaded hole of the first second clamping plate, the surface thread direction of the second threaded column is opposite to the surface thread direction of the first threaded column, and one end of the second threaded column is drivingly connected to the other end of the first threaded column;

[0018] The third threaded column cooperates with the first threaded hole of the second first clamping plate, the surface thread direction of the third threaded column is the same as the surface thread direction of the first threaded column, and one end of the third threaded column is drivingly connected to the other end of the second threaded column;

[0019] The fourth threaded column cooperates with the second threaded hole of the second second clamping plate, the surface thread direction of the fourth threaded column is the same as the surface thread direction of the second threaded column, one end of the fourth threaded column is transmission connected to the other end of the third threaded column, and a second transmission column is provided at the other end of the fourth threaded column, and the second transmission column is connected to the shell through a bearing, and the second transmission column is transmission connected to the driving device.

[0020] Preferably, a first transmission block is provided at one end of the first threaded column away from the first transmission column;

[0021] A first transmission groove is provided at one end of the second threaded column, a second transmission block is provided at the other end of the second threaded column, and the first transmission block is provided in the first transmission groove;

[0022] A second transmission groove is disposed at one end of the third threaded column, a third transmission block is disposed at the other end of the third threaded column, and the second transmission block is disposed in the second transmission groove;

[0023] The end of the fourth threaded column away from the second transmission column is provided with a third transmission groove, and the third transmission block is arranged in the third transmission groove.

[0024] Preferably, a first connecting jack is provided on the first transmission block;

[0025] A second connecting socket is provided on the first transmission slot;

[0026] The second transmission block is provided with a third connecting jack;

[0027] A fourth connecting socket is provided on the second transmission slot;

[0028] The third transmission block is provided with a fifth connecting jack;

[0029] The third transmission groove is provided with a sixth connecting socket.

[0030] Preferably, the driving device comprises a mounting plate, a motor, a first pulley, a second pulley, a third pulley, a fourth pulley and a mounting column;

[0031] The mounting plate is fixedly connected to the middle portion of the side wall of the housing;

[0032] The motor is mounted on the mounting plate;

[0033] The first pulley is connected to the output end of the motor;

[0034] There are four second belt pulleys, and the four second belt pulleys are respectively connected to the four width adjustment transmission shafts;

[0035] The third belt pulley is arranged at the upper half of the side wall of the housing and between the two second belt pulleys. The third belt pulley is connected to the two second belt pulleys through two belt transmissions, and the third belt pulley is connected to the first belt pulley through a belt transmission.

[0036] The fourth pulley is arranged at the lower half of the side wall of the housing and between the two second pulleys, the fourth pulley and the two second pulleys are connected by two belt transmissions, and the fourth pulley is connected to the first pulley by a belt transmission;

[0037] There are two mounting columns, one end of the two mounting columns is rotatably connected to the third belt pulley and the fourth belt pulley respectively, and the other end of the two mounting columns is fixedly connected to the side wall of the shell.

[0038] Preferably, the conveying mechanism for grain drying also includes four guide pillars, two of which pass through the upper ends of several first clamps and the upper ends of several second clamps, and the remaining two guide pillars pass through the lower ends of several first clamps and the lower ends of several second clamps, and both ends of the guide pillars are connected to the shell.

[0039] Preferably, the grain drying conveying mechanism further comprises an auxiliary width adjustment component, the auxiliary width adjustment component comprises a first slider, a second slider and a spring telescopic rod;

[0040] A plurality of first sliding grooves are formed at both ends of the first clamping plate, and a plurality of second sliding grooves are formed at both ends of the second clamping plate;

[0041] There are a plurality of first sliding blocks, one end of each of the first sliding blocks is respectively disposed in a plurality of first sliding grooves, and the other ends of each of the first sliding blocks are respectively fixedly connected to the two first mounting frames;

[0042] There are a plurality of second sliding blocks, one end of each of the second sliding blocks is respectively disposed in a plurality of second sliding grooves, and the other ends of each of the second sliding blocks are respectively fixedly connected to the two second mounting frames;

[0043] There are a plurality of spring telescopic rods, one end of which is connected to the first mounting frame, and the other end of which is connected to the second mounting frame.

[0044] Preferably, the auxiliary width adjustment assembly further includes a first spring and a second spring;

[0045] The first spring is arranged in the first sliding groove, one end of the first spring is connected to the first clamping plate, and the other end of the first spring is connected to the first sliding block;

[0046] The second spring is arranged in the second sliding groove, one end of the second spring is connected to the second clamping plate, and the other end of the second spring is connected to the second sliding block.

[0047] Preferably, the dryer body comprises a barrier net and a pressing plate;

[0048] The barrier net is set at the low-temperature air outlet;

[0049] The pressure plate abuts against the barrier net.

[0050] A grain dryer is provided, wherein the grain dryer is provided with the above-mentioned conveying mechanism for grain drying.

[0051] A grain processing process uses the grain dryer mentioned above.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] 1. The present application sets up several Tesla-like valve conveying structures, which can reduce the falling speed of the grains to be dried inside the Tesla-like valve conveying structures and prolong the transfer time of the grains to be dried inside the Tesla-like valve conveying structures, so that the grains to be dried have a longer drying time, thereby making the grains drier and prolonging the storage time.

[0054] 2. In the present application, the first splint, the second splint, the first baffle and the second baffle are arranged, and the grains to be dried collide with the upper end of the first baffle, the upper end of the second baffle, the wall of the first splint and the wall of the second splint. The first baffle and the second baffle separate and aggregate the grains to be dried, so that the high-temperature air can fully dry each grain to be dried, thereby improving the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a front view of a conveying mechanism for grain drying of the present application;

[0056] Figure 2 It is a left view of a conveying mechanism for grain drying of the present application;

[0057] Figure 3 is a top view of a conveying mechanism for drying grains of the present application;

[0058] Figure 4 It is a three-dimensional diagram of a conveying mechanism for grain drying of the present application;

[0059] Figure 5 is a three-dimensional diagram of the dryer body of the present application;

[0060] Figure 6 is a stereogram of the Tesla-like valve delivery structure and auxiliary width adjustment assembly of the present application;

[0061] Figure 7 It is a front view of the Tesla-like valve delivery structure and auxiliary width adjustment assembly of the present application;

[0062] Figure 8 This Figure 7 Sectional view at AA;

[0063] Fig. 9 It is a left view of the Tesla-like valve delivery structure and the auxiliary width adjustment assembly of the Tesla-like valve delivery structure of the present application, in which the first mounting frame and the second mounting frame are hidden;

[0064] Fig.10 is a three-dimensional diagram of the first clamping plate and the second clamping plate of the present application;

[0065] Fig.11 is a stereoscopic view of the Tesla-like valve, width adjustment transmission shaft, drive device and guide column of the present application;

[0066] Fig.12 is a three-dimensional diagram of the width adjustment transmission shaft of the present application;

[0067] Fig.13 This is an exploded view of the width adjustment drive shaft of the present application. Figure 1 ;

[0068] Fig.14 This is an exploded view of the width adjustment drive shaft of the present application. Figure 2 .

[0069] The numbers in the figure are:

[0070] 1- Dryer body;

[0071] 11-housing; 111-high temperature air inlet; 112-low temperature air outlet;

[0072] 12-feed guide trough;

[0073] 13-discharging port;

[0074] 14-support leg;

[0075] 15- Barrier net;

[0076] 16-pressing plate;

[0077] 2-Type Tesla valve delivery structure;

[0078] 21-first clamping plate; 211-first threaded hole; 212-first sliding groove;

[0079] 22-second clamping plate; 221-second threaded hole; 222-second sliding groove;

[0080] 23- first baffle;

[0081] 24- second baffle;

[0082] 25- first mounting frame;

[0083] 26- second mounting frame;

[0084] 3-Width adjustment drive shaft;

[0085] 31-first threaded column; 311-first transmission column;

[0086] 312-first transmission block; 3121-first connection jack;

[0087] 32- second threaded column;

[0088] 321-first transmission slot; 3211-second connection socket;

[0089] 322-second transmission block; 3221-third connecting jack;

[0090] 33- third threaded column;

[0091] 331-second transmission slot; 3312-fourth connecting jack;

[0092] 332-third transmission block; 3321-fifth connecting jack;

[0093] 34- fourth threaded column;

[0094] 341 - second transmission column;

[0095] 342-third transmission slot; 3421-sixth connection socket;

[0096] 4-driving device; 41-mounting plate; 42-motor; 43-first pulley; 44-second pulley; 45-third pulley; 46-fourth pulley; 47-mounting column;

[0097] 5-Guide pillar;

[0098] 6- auxiliary width adjustment component; 61- first slider; 62- second slider; 63- spring telescopic rod; 64- first spring; 65- second spring. DETAILED DESCRIPTION

[0099] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0100] See also Figures 1 to 14 As shown, a conveying mechanism for grain drying is characterized in that it includes a dryer body 1, a Tesla-like valve conveying structure 2, a width adjustment transmission shaft 3 and a driving device 4;

[0101] The dryer body 1 includes a housing 11, a feed guide 12, a discharge port 13 and support legs 14;

[0102] A high-temperature air inlet 111 is provided on one side wall of the housing 11, and a low-temperature air outlet 112 is provided on the other side wall of the housing 11;

[0103] There are a plurality of feed guide grooves 12, which are parallel to each other and arranged in parallel at the upper end of the shell 11 and connected to the shell 11;

[0104] The discharge port 13 is disposed at the bottom of the housing 11 and connected to the housing 11;

[0105] There are four supporting legs 14, and the four supporting legs 14 are respectively arranged at the four corners of the bottom of the housing 11;

[0106] The Tesla-like valve conveying structure 2 has a plurality of Tesla-like valve conveying structures 2, which are arranged in parallel and in parallel inside the shell 11. The Tesla-like valve conveying structure 2 includes a first clamping plate 21, a second clamping plate 22, a first baffle plate 23, a second baffle plate 24, a first mounting frame 25, and a second mounting frame 26; the first clamping plate 21 and the second clamping plate 22 are arranged in parallel, and a conveying cavity is formed between the first clamping plate 21 and the second clamping plate 22, the upper end of the conveying cavity is connected to the feed guide groove 12, and the lower end of the conveying cavity is connected to the discharge port 13; there are a plurality of first baffle plates 23, and the plurality of first baffle plates 23 are obliquely arranged at the conveying cavity between the first clamping plate 21 and the second clamping plate 22. In the through cavity, the inclined wall surface of one side of the first baffle plate 23 is parallel to the first clamping plate 21; there are a plurality of second baffle plates 24, which are obliquely arranged in the conveying through cavity between the first clamping plate 21 and the second clamping plate 22, and the inclined wall surface of one side of the second baffle plate 24 is parallel to the second clamping plate 22; there are two first mounting frames 25, which are respectively mounted on both ends of the first clamping plate 21, and the two ends of the first baffle plate 23 are respectively connected to the two first mounting frames 25; there are two second mounting frames 26, which are respectively mounted on both ends of the second clamping plate 22, and the two ends of the second baffle plate 24 are respectively connected to the two second mounting frames 26;

[0107] There are four width adjustment transmission shafts 3, and the four width adjustment transmission shafts 3 are used to adjust the width of the conveying cavity, and simultaneously adjust the distance between the first baffle 23 and the first clamping plate 21, and the distance between the second baffle 24 and the second clamping plate 22;

[0108] The driving device 4 is used to drive the width adjustment transmission shaft 3 to rotate.

[0109] By setting a shell 11, a plurality of feed guide grooves 12, a discharge port 13 and a plurality of Tesla-like valve conveying structures 2, the grains to be dried are transported to the plurality of feed guide grooves 12 through a conveyor belt, the feed guide grooves 12 guide the grains to be dried into the Tesla-like valve conveying structure 2, and high-temperature air is blown into the Tesla-like valve conveying structure 2 through a high-temperature air inlet 111 to dry the grains to be dried, and the Tesla-like valve conveying structure 2 can reduce the falling speed of the grains to be dried therein, and prolong the transfer time of the grains to be dried inside the Tesla-like valve conveying structure 2, so that the grains to be dried have a longer drying time, and thus make the grains drier and prolong the storage time; by setting a first splint 21, a second splint 22, a first baffle 23, a second baffle 24, a first mounting frame 25 and a second mounting frame 26, the first splint 21, the second splint 22, the first baffle 23 and the second baffle 24 form a Tesla-like structure, and the grains to be dried fall into the structure formed by the first splint 21 and the second splint 22 Inside the through cavity, the grains to be dried first collide with the upper end of the first baffle 23, the first part of the grains to be dried moves toward the first clamping plate 21 along the inclined side of the first baffle 23, and the grains to be dried moving downward collide with the upper end of the second first baffle 23 to divert the first part of the grains to be dried, and the second part of the grains to be dried splashes toward the second clamping plate 22 and moves toward the second clamping plate 22 along the inclined side of the second baffle 24. The grains to be dried moving downward collide with the upper end of the second second baffle 24 to divert the second part of the grains to be dried. The grains to be dried repeat the above steps in the process of flowing downward, and the grains to be dried collide with the upper end of the first baffle 23, the upper end of the second baffle 24, the wall surface of the first clamping plate 21 and the wall surface of the second clamping plate 22. The first baffle 23 and the second baffle 24 separate and aggregate the grains to be dried, so that the high-temperature air can fully dry each grain to be dried, thereby improving the drying efficiency.

[0110] See also Fig.12 As shown, the first clamping plate 21 has four corners with first threaded holes 211; the second clamping plate 22 has four corners with second threaded holes 221; the width adjustment transmission shaft 3 includes a first threaded column 31, a second threaded column 32, a third threaded column 33 and a fourth threaded column 34;

[0111] The first threaded column 31 cooperates with the first threaded hole 211 of the first clamping plate 21 . A first transmission column 311 is disposed at one end of the first threaded column 31 , and the first transmission column 311 is connected to the housing 11 through a bearing.

[0112] The second threaded column 32 cooperates with the second threaded hole 221 of the first second clamping plate 22, the surface thread direction of the second threaded column 32 is opposite to the surface thread direction of the first threaded column 31, and one end of the second threaded column 32 is drivingly connected to the other end of the first threaded column 31;

[0113] The third threaded column 33 cooperates with the first threaded hole 211 of the second first clamping plate 21, the surface thread direction of the third threaded column 33 is the same as the surface thread direction of the first threaded column 31, and one end of the third threaded column 33 is drivingly connected to the other end of the second threaded column 32;

[0114] The fourth threaded column 34 cooperates with the second threaded hole 221 of the second second clamping plate 22, the surface thread direction of the fourth threaded column 34 is the same as the surface thread direction of the second threaded column 32, one end of the fourth threaded column 34 is transmission-connected to the other end of the third threaded column 33, the other end of the fourth threaded column 34 is provided with a second transmission column 341, and the second transmission column 341 is connected to the housing 11 through a bearing, and the second transmission column 341 is transmission-connected to the driving device 4.

[0115] By setting the first threaded column 31, the second threaded column 32, the third threaded column 33 and the fourth threaded column 34, according to the specific number of the Tesla-like valve conveying structure 2, a plurality of second threaded columns 32 and a plurality of third threaded columns 33 are installed between the first threaded column 31 and the fourth threaded column 34, and the driving device 4 works to drive the fourth threaded column 34 to rotate, and the fourth threaded column 34 transmits the torque to the third threaded column 33, the second threaded column 32 and the first threaded column 31 in sequence, and the first threaded column 31 and the second threaded column 32 rotate synchronously, and the thread on the surface of the first threaded column 31 is opposite to the thread on the surface of the second threaded column 32, so that the first splint 21 and the second splint 22 move away from or close to each other, thereby satisfying the drying of different types of grains to be dried.

[0116] See also Fig.13 As shown, a first transmission block 312 is disposed at one end of the first threaded column 31 away from the first transmission column 311;

[0117] A first transmission groove 321 is disposed at one end of the second threaded column 32, a second transmission block 322 is disposed at the other end of the second threaded column 32, and the first transmission block 312 is disposed in the first transmission groove 321;

[0118] A second transmission groove 331 is disposed at one end of the third threaded column 33, a third transmission block 332 is disposed at the other end of the third threaded column 33, and the second transmission block 322 is disposed in the second transmission groove 331;

[0119] A third transmission slot 342 is disposed at one end of the fourth threaded column 34 away from the second transmission column 341 , and the third transmission block 332 is disposed in the third transmission slot 342 .

[0120] The driving device 4 drives the fourth threaded column 34 to rotate, and the fourth threaded column 34 transmits the torque to the third threaded column 33 through the cooperation of the third transmission groove 342 and the third transmission block 332. The third threaded column 33 transmits the torque to the second threaded column 32 through the cooperation of the second transmission groove 331 and the second transmission block 322. The second threaded column 32 transmits the torque to the first threaded column 31 through the cooperation of the first transmission groove 321 and the first transmission block 312, thereby realizing the first threaded column 31, the second threaded column 32, the third threaded column 33 and the fourth threaded column 34 maintaining synchronous movement.

[0121] See also Fig.13 and Fig.14 As shown, the first transmission block 312 is provided with a first connecting jack 3121;

[0122] The first transmission slot 321 is provided with a second connection socket 3211;

[0123] The second transmission block 322 is provided with a third connection socket 3221;

[0124] The second transmission slot 331 is provided with a fourth connection socket 3312;

[0125] The third transmission block 332 is provided with a fifth connection socket 3321;

[0126] The third transmission slot 342 defines a sixth connecting hole 3421 .

[0127] The first transmission block 312 is inserted into the first transmission groove 321, and is inserted into the first connecting hole 3121 and the second connecting hole 3211 by bolts to fix the first threaded column 31 and the second threaded column 32 together. The second threaded column 32 and the third threaded column 33, and the third threaded column 33 and the fourth threaded column 34 are fixedly connected by the same method, so that the first threaded column 31, the second threaded column 32, the third threaded column 33 and the fourth threaded column 34 are fixedly connected into a whole.

[0128] See also Fig.11 As shown, the driving device 4 includes a mounting plate 41, a motor 42, a first pulley 43, a second pulley 44, a third pulley 45, a fourth pulley 46 and a mounting column 47;

[0129] The mounting plate 41 is fixedly connected to the middle portion of the side wall of the housing 11;

[0130] The motor 42 is mounted on the mounting plate 41;

[0131] The first pulley 43 is connected to the output end of the motor 42;

[0132] There are four second belt pulleys 44, and the four second belt pulleys 44 are respectively connected to the four width adjustment transmission shafts 3;

[0133] The third pulley 45 is disposed at the upper half of the side wall of the housing 11 and between the two second pulleys 44. The third pulley 45 and the two second pulleys 44 are connected via two belt transmissions, and the third pulley 45 is connected to the first pulley 43 via a belt transmission.

[0134] The fourth pulley 46 is disposed at the lower half of the side wall of the housing 11 and between the two second pulleys 44. The fourth pulley 46 and the two second pulleys 44 are connected via two belt transmissions, and the fourth pulley 46 is connected to the first pulley 43 via a belt transmission.

[0135] There are two mounting posts 47 , one end of the two mounting posts 47 is rotatably connected to the third pulley 45 and the fourth pulley 46 respectively, and the other end of the two mounting posts 47 is fixedly connected to the side wall of the housing 11 .

[0136] By setting the mounting plate 41, the motor 42, the first pulley 43, the second pulley 44, the third pulley 45, the fourth pulley 46 and the mounting column 47, the motor 42 works to drive the first pulley 43 to rotate, the first pulley 43 transmits power to the third pulley 45 and the fourth pulley 46 through the belt, the third pulley 45 transmits power to the two second pulleys 44 through the belt, and the fourth pulley 46 transmits power to the other two second pulleys 44 through the belt, thereby driving the four width adjustment transmission shafts 3 to rotate synchronously.

[0137] See also Fig.11 The shown grain drying conveying mechanism also includes guide pillars 5, which have four guide pillars 5, two of which pass through the upper ends of several first clamps 21 and the upper ends of several second clamps 22, and the remaining two guide pillars 5 pass through the lower ends of several first clamps 21 and the lower ends of several second clamps 22, and both ends of the guide pillars 5 are connected to the shell 11.

[0138] By setting the guide column 5, when the width adjustment transmission shaft 3 adjusts the Tesla-like valve conveying structure 2, the first clamping plate 21 and the second clamping plate 22 move along the guide column 5, and the guide column 5 provides lateral support force to prevent the Tesla-like valve conveying structure 2 from rotating when moving.

[0139] See also Figure 6 and Fig. 9 As shown, the conveying mechanism for grain drying further includes an auxiliary width adjustment component 6, which includes a first slider 61, a second slider 62 and a spring telescopic rod 63;

[0140] A plurality of first sliding grooves 212 are formed at both ends of the first clamping plate 21, and a plurality of second sliding grooves 222 are formed at both ends of the second clamping plate 22;

[0141] There are a plurality of first sliding blocks 61, one end of each of the first sliding blocks 61 is respectively disposed in a plurality of first sliding grooves 212, and the other ends of each of the first sliding blocks 61 are respectively fixedly connected to two first mounting frames 25;

[0142] There are a plurality of second sliders 62, one end of each of the second sliders 62 is disposed in a plurality of second slide slots 222, and the other end of each of the second sliders 62 is fixedly connected to two second mounting frames 26.

[0143] There are a plurality of spring telescopic rods 63 , one end of the spring telescopic rod 63 is connected to the first mounting bracket 25 , and the other end of the spring telescopic rod 63 is connected to the second mounting bracket 26 .

[0144] By setting the first slider 61, the second slider 62 and the first spring 64 telescopic rod 63, when the first clamp plate 21 and the second clamp plate 22 move away from each other, the spring telescopic rod 63 contracts, pulling the first slider 61 and the second slider 62 to move towards each other in the first slide groove 212 and the second slide groove 222 respectively, so that the first mounting frame 25 and the second mounting frame 26 move towards each other, thereby expanding the distance between the first clamp plate 21 and the first baffle plate 23, and expanding the distance between the second clamp plate 22 and the second baffle plate 24, so as to facilitate the passage of larger grains to be dried.

[0145] See also Fig. 9 The auxiliary width adjustment assembly 6 shown also includes a first spring 64 and a second spring 65;

[0146] The first spring 64 is disposed in the first sliding groove 212 , one end of the first spring 64 is connected to the first clamping plate 21 , and the other end of the first spring 64 is connected to the first sliding block 61 ;

[0147] The second spring 65 is disposed in the second sliding groove 222 , one end of the second spring 65 is connected to the second clamping plate 22 , and the other end of the second spring 65 is connected to the second sliding block 62 .

[0148] By providing the first spring 64 and the second spring 65 , when the first slider 61 and the second slider 62 are moving closer to or farther from each other, the first spring 64 and the second spring 65 respectively keep the upper and lower ends of the first slider 61 and the second slider 62 moving synchronously.

[0149] See also Figure 5 As shown, the dryer body 1 includes a barrier net 15 and a pressing plate 16;

[0150] The barrier net 15 is arranged at the low-temperature air outlet 112;

[0151] The pressing plate 16 abuts against the barrier net 15 .

[0152] By setting the barrier net 15 and the pressure plate 16, the pressure plate 16 presses the barrier net 15 at the low-temperature air outlet 112, and the high-temperature air blows through the Tesla valve conveying structure 2. Part of the grains to be dried are blown to the low-temperature air outlet 112, and the barrier net 15 intercepts the grains, thereby avoiding the loss of the grains.

[0153] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A conveying mechanism for drying grains, characterized in that: It comprises a dryer body (1), a Tesla-like valve conveying structure (2), a width adjustment transmission shaft (3) and a driving device (4); The dryer body (1) comprises a shell (11), a feed guide groove (12), a discharge port (13) and support legs (14); A high-temperature air inlet (111) is provided on one side wall of the shell (11), and a low-temperature air outlet (112) is provided on the other side wall of the shell (11); There are a plurality of feed guide grooves (12), and the plurality of feed guide grooves (12) are arranged parallel to each other and in parallel at the upper end of the shell (11), and are connected to the shell (11); The discharge port (13) is arranged at the bottom of the shell (11) and is connected to the shell (11); There are four supporting legs (14), and the four supporting legs (14) are respectively arranged at four corners of the bottom of the housing (11); The Tesla-like valve conveying structures (2) are provided in a plurality, and the plurality of Tesla-like valve conveying structures (2) are arranged in parallel and in parallel inside the housing (11), and the Tesla-like valve conveying structures (2) include a first clamping plate (21), a second clamping plate (22), a first baffle plate (23), a second baffle plate (24), a first mounting frame (25) and a second mounting frame (26); the first clamping plate (21) and the second clamping plate (22) are arranged in parallel, and a conveying cavity is formed between the first clamping plate (21) and the second clamping plate (22), the upper end of the conveying cavity is connected to the feed guide groove (12), and the lower end of the conveying cavity is connected to the discharge port (13); the plurality of first baffle plates (23) are provided, and the plurality of first baffle plates (23) are arranged obliquely between the first clamping plate (21) and the second clamping plate (22). In the conveying cavity, the inclined wall surface on one side of the first baffle plate (23) is parallel to the first clamping plate (21); there are a plurality of second baffle plates (24), which are obliquely arranged in the conveying cavity between the first clamping plate (21) and the second clamping plate (22), and the inclined wall surface on one side of the second baffle plate (24) is parallel to the second clamping plate (22); there are two first mounting frames (25), which are respectively mounted on two ends of the first clamping plate (21), and the two ends of the first baffle plate (23) are respectively connected to the two first mounting frames (25); there are two second mounting frames (26), which are respectively mounted on two ends of the second clamping plate (22), and the two ends of the second baffle plate (24) are respectively connected to the two second mounting frames (26); The Tesla-like valve conveying structure (2) is used to reduce the falling speed of the grain to be dried inside it; There are four width adjustment transmission shafts (3), and the four width adjustment transmission shafts (3) are used to adjust the width of the conveying cavity; The grain drying conveying mechanism further comprises an auxiliary width adjustment component (6), wherein the auxiliary width adjustment component (6) adjusts the distance between the first baffle plate (23) and the first clamping plate (21), and the distance between the second baffle plate (24) and the second clamping plate (22); The driving device (4) is used to drive the width adjustment transmission shaft (3) to rotate.

2. A grain drying conveying mechanism according to claim 1, characterized in that: The first clamping plate (21) has four corners each with a first threaded hole (211); the second clamping plate (22) has four corners each with a second threaded hole (221); the width adjustment transmission shaft (3) comprises a first threaded column (31), a second threaded column (32), a third threaded column (33) and a fourth threaded column (34); The first threaded column (31) cooperates with the first threaded hole (211) of the first first clamping plate (21), a first transmission column (311) is provided at one end of the first threaded column (31), and the first transmission column (311) is connected to the housing (11) via a bearing; The second threaded column (32) cooperates with the second threaded hole (221) of the first second clamping plate (22), the surface thread direction of the second threaded column (32) is opposite to the surface thread direction of the first threaded column (31), and one end of the second threaded column (32) is drivingly connected to the other end of the first threaded column (31); The third threaded column (33) cooperates with the first threaded hole (211) of the second first clamping plate (21), the surface thread direction of the third threaded column (33) is the same as the surface thread direction of the first threaded column (31), and one end of the third threaded column (33) is drivingly connected to the other end of the second threaded column (32); The fourth threaded column (34) cooperates with the second threaded hole (221) of the second second clamping plate (22); the surface thread direction of the fourth threaded column (34) is the same as the surface thread direction of the second threaded column (32); one end of the fourth threaded column (34) is transmission-connected to the other end of the third threaded column (33); a second transmission column (341) is provided at the other end of the fourth threaded column (34); the second transmission column (341) is connected to the housing (11) via a bearing; and the second transmission column (341) is transmission-connected to the driving device (4).

3. A grain drying conveying mechanism according to claim 2, characterized in that: A first transmission block (312) is provided at one end of the first threaded column (31) away from the first transmission column (311); A first transmission groove (321) is provided at one end of the second threaded column (32), a second transmission block (322) is provided at the other end of the second threaded column (32), and the first transmission block (312) is arranged in the first transmission groove (321); A second transmission groove (331) is provided at one end of the third threaded column (33), a third transmission block (332) is provided at the other end of the third threaded column (33), and the second transmission block (322) is arranged in the second transmission groove (331); A third transmission groove (342) is provided at one end of the fourth threaded column (34) away from the second transmission column (341), and the third transmission block (332) is arranged in the third transmission groove (342).

4. A grain drying conveying mechanism according to claim 3, characterized in that: The first transmission block (312) is provided with a first connection socket (3121); The first transmission groove (321) is provided with a second connection socket (3211); The second transmission block (322) is provided with a third connection socket (3221); The second transmission groove (331) is provided with a fourth connection socket (3312); The third transmission block (332) is provided with a fifth connection socket (3321); The third transmission slot (342) is provided with a sixth connection socket (3421).

5. A conveying mechanism for drying grains according to claim 1, characterized in that: The driving device (4) comprises a mounting plate (41), a motor (42), a first belt pulley (43), a second belt pulley (44), a third belt pulley (45), a fourth belt pulley (46) and a mounting column (47); The mounting plate (41) is fixedly connected to the middle portion of the side wall of the housing (11); The motor (42) is mounted on the mounting plate (41); The first pulley (43) is connected to the output end of the motor (42); There are four second belt pulleys (44), and the four second belt pulleys (44) are respectively connected to the four width adjustment transmission shafts (3) for transmission; The third pulley (45) is arranged at the upper half of the side wall of the housing (11) and between the two second pulleys (44); the third pulley (45) and the two second pulleys (44) are connected via two belt transmissions; the third pulley (45) and the first pulley (43) are connected via a belt transmission; The fourth pulley (46) is arranged at the lower half of the side wall of the housing (11) and between the two second pulleys (44); the fourth pulley (46) and the two second pulleys (44) are connected via two belt transmissions; the fourth pulley (46) and the first pulley (43) are connected via a belt transmission; There are two mounting columns (47), one end of the two mounting columns (47) is rotatably connected to the third belt pulley (45) and the fourth belt pulley (46) respectively, and the other end of the two mounting columns (47) is fixedly connected to the side wall of the housing (11).

6. A grain drying conveying mechanism according to claim 1, characterized in that: The grain drying conveying mechanism further comprises guide columns (5), wherein the guide columns (5) are four, two of which pass through the upper ends of the plurality of first clamping plates (21) and the upper ends of the plurality of second clamping plates (22), and the remaining two guide columns (5) pass through the lower ends of the plurality of first clamping plates (21) and the lower ends of the plurality of second clamping plates (22), and both ends of the guide columns (5) are connected to the housing (11); The auxiliary width adjustment component (6) comprises a first sliding block (61), a second sliding block (62) and a spring telescopic rod (63); a plurality of first sliding grooves (212) are formed at both ends of the first clamping plate (21), and a plurality of second sliding grooves (222) are formed at both ends of the second clamping plate (22); There are a plurality of first sliding blocks (61), one end of each of the first sliding blocks (61) is disposed in a plurality of first sliding grooves (212), and the other ends of each of the first sliding blocks (61) are fixedly connected to two first mounting frames (25); There are a plurality of second sliding blocks (62), one end of each of the second sliding blocks (62) is disposed in each of the second sliding grooves (222), and the other ends of each of the second sliding blocks (62) are fixedly connected to the two second mounting frames (26); There are a plurality of spring telescopic rods (63), one end of the spring telescopic rod (63) is connected to the first mounting frame (25), and the other end of the spring telescopic rod (63) is connected to the second mounting frame (26).

7. A conveying mechanism for drying grains according to claim 6, characterized in that: The auxiliary width adjustment assembly (6) further comprises a first spring (64) and a second spring (65); The first spring (64) is arranged in the first sliding groove (212), one end of the first spring (64) is connected to the first clamping plate (21), and the other end of the first spring (64) is connected to the first sliding block (61); The second spring (65) is arranged in the second sliding groove (222), one end of the second spring (65) is connected to the second clamping plate (22), and the other end of the second spring (65) is connected to the second sliding block (62); The dryer body (1) comprises a barrier net (15) and a pressing plate (16); The barrier net (15) is arranged at the low-temperature air outlet (112); The pressing plate (16) abuts against the barrier net (15).

8. A grain dryer, characterized in that: The grain dryer is equipped with a grain drying conveying mechanism as described in any one of claims 1-7.

9. A grain processing process, characterized in that: The process uses a grain dryer as claimed in claim 8.

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