Grain discharging device and tower type grain and oil drying machine

Abstract

The utility model discloses a grain discharge device and tower-type grain and oil dryer, the grain discharge device comprises a frame, a grain discharge wheel arranged on the frame and a grain discharge driving device used for driving the grain discharge wheel to rotate, the grain discharge wheel is arranged below a discharge port of the dryer, and the grain discharge driving device is used for driving the grain discharge wheel to rotate. Comprising a support, a rotating seat arranged on the support and grain discharging teeth arranged on the rotating seat. The rotating seat is rotationally connected to the bracket, and the rotating seat is conical; the bracket is mounted on the rack; the multiple sets of grain discharging teeth are arranged in the circumferential direction of the rotating base. And each group of grain discharging teeth is spiral. The grain discharging device can smoothly discharge grains and cannot deform to cause faults.

Description

Technical Field

[0001] The invention relates to a tower type grain and oil dryer, and in particular to a tower grain discharge device and a tower type grain and oil dryer. Background Art

[0002] At present, the grain discharge device of the tower grain and oil dryer mostly uses a grain discharge wheel to discharge grain. For example, the utility model patent with the authorization announcement number CN208365981U discloses "a rice drying device", which includes a drying bin, a feed hopper, a bucket elevator, a lower auger, an upper auger, a grain unloading pipe, a grain discharge wheel, a main fan and a heat pump unit, wherein an inlet is provided at the top of the drying bin, the upper auger is arranged at the inlet at the top of the drying bin, the feed hopper and the bucket elevator are connected, the bucket elevator is arranged on the outer wall of the drying bin, and the top of the bucket elevator is opposite to the upper auger; the above-mentioned rice drying device can meet the needs of various working conditions, thereby improving the stability of the equipment process; using water as the medium for heat exchange reduces the requirements on the ambient temperature, can adapt to various weathers, and the equipment has high adaptability; low-temperature drying is adopted to ensure the quality of rice.

[0003] However, since the grain discharge wheel is a rotating device for discharging grain, the above-mentioned rice drying device has insufficient rigidity due to the long diameter of the grain discharge wheel. After being used for a long time, the grain discharge wheel is easily deformed under the pressure and impact of the grain gravity, thereby causing the grain discharge wheel to fail to rotate normally. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the utility model provides a grain discharging device, which can discharge grain smoothly and will not deform to cause malfunctions.

[0005] The second object of the utility model is to provide a tower type grain and oil dryer adopting the above-mentioned grain discharge device.

[0006] The technical solution of the utility model to solve the above technical problems is:

[0007] A grain discharge device comprises a frame, a grain discharge wheel arranged on the frame and a grain discharge driving device for driving the grain discharge wheel to rotate, wherein the grain discharge wheel is arranged below the discharge port of a dryer, comprises a bracket, a rotating seat arranged on the bracket and grain discharge teeth arranged on the rotating seat; the rotating seat is rotatably connected to the bracket, and the rotating seat is conical; the bracket is installed on the frame; the grain discharge teeth are divided into multiple groups, and the multiple groups of grain discharge teeth are arranged along the circumferential direction of the rotating seat; each group of grain discharge teeth is spiral.

[0008] The preferred embodiment of the utility model is: the grain discharge driving device includes a transmission shaft and a motor for driving the transmission shaft to rotate, wherein the transmission shaft is installed on a first bearing seat, and the first bearing seat is installed on the frame; the main shaft of the motor is connected to the transmission shaft through a coupling, and the transmission shaft and the rotating seat are connected through a worm gear mechanism.

[0009] A preferred embodiment of the utility model is: the bracket includes a fixing frame and a second bearing seat arranged on the fixing frame; wherein a rotating shaft is arranged at the bottom of the rotating shaft, and the lower end of the rotating shaft passes through the second bearing seat and is connected to the worm gear mechanism; a bearing is arranged between the second bearing seat and the position corresponding to the rotating shaft.

[0010] A preferred embodiment of the utility model is that: a plane bearing is also provided on the fixing frame for supporting the bottom surface of the rotating seat.

[0011] A preferred embodiment of the present invention is that: the first bearing seats are divided into two groups, and the two groups of first bearing seats are located on both sides of the worm gear mechanism.

[0012] The preferred embodiment of the present invention is that the discharge port of the dryer is circular.

[0013] The preferred embodiment of the utility model is that the angle δ between the line from the discharge port of the dryer to the edge of the rotating seat and the horizontal plane is smaller than the minimum repose angle of the grain and oil material drying process.

[0014] A tower type grain and oil dryer comprises a dryer, a grain discharge device and an elevator, wherein the dryer is used to dry materials, the grain discharge device is used to discharge the materials in the dryer into a lower dragon, and the elevator is used to transport the materials in the lower dragon back into the dryer.

[0015] The preferred embodiment of the present invention is that: the dryers are multiple groups, which are arranged in parallel, and correspondingly, the grain discharge devices are multiple groups, which are arranged in parallel.

[0016] The preferred embodiment of the utility model is that the transmission shafts in two adjacent groups of grain discharge devices arranged in parallel are connected via a coupling.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] (1) The grain discharge wheel in the grain discharge device of the utility model is vertically arranged with respect to the discharge port of the dryer, and grain discharge teeth are arranged on the grain discharge wheel. When the grain discharge wheel rotates, the grain and oil materials can be discharged to the outside of the dryer through the spiral grain discharge teeth; when the grain discharge wheel stops rotating, the discharge port of the dryer is blocked due to the blocking of the grain discharge wheel, so that the grain and oil materials cannot be discharged.

[0019] (2) The grain discharge wheel in the grain discharge device of the present invention is a conical structure, so it can withstand greater material impact without deformation; at the same time, the grain discharge device of the present invention has a simple structure and can achieve effective and convenient grain discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an installation position diagram of the grain discharge device of the utility model.

[0021] Figure 2 It is a structural diagram of the grain discharge device.

[0022] Figure 3 This is a schematic diagram of the grain discharge wheel.

[0023] Figure 4 It is a structural schematic diagram of the grain and oil dryer of the utility model, and the structural schematic diagram includes a top view (upper left), a front view (lower left) and a stereoscopic view (right).

[0024] In the figure: 01-dryer; 02-lower dragon; 03-bucket elevator; 100-grain discharge drive device; 101-motor; 102-coupling; 103-drive shaft; 104-worm gear mechanism; 200-grain discharge wheel; 201-rotating seat; 202-grain discharge teeth; 300-support device; 301-frame; 302-fixed frame; 303-plane bearing; 304-second bearing seat; 305-first bearing seat. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0026] Example 1

[0027] See also Figure 1-Figure 4 The grain discharge device of the utility model comprises a frame 301, a grain discharge wheel 200 arranged on the frame 301, and a grain discharge driving device 100 for driving the grain discharge wheel 200 to rotate, wherein:

[0028] The grain discharge wheel 200 is arranged below the discharge port of the dryer 01, and includes a bracket, a rotating seat 201 arranged on the bracket, and a grain discharge tooth 202 arranged on the rotating seat 201; the rotating seat 201 is rotatably connected to the bracket, and the rotating seat 201 is conical; the bracket is installed on the frame 301; the grain discharge teeth 202 are multiple groups, and the multiple groups of grain discharge teeth 202 are arranged along the circumferential direction of the rotating seat 201; each group of grain discharge teeth 202 is spiral;

[0029] The grain discharge driving device 100 includes a transmission shaft 103 and a motor 101 for driving the transmission shaft 103 to rotate, wherein the transmission shaft 103 is mounted on a first bearing seat 305, and the first bearing seat 305 is mounted on the frame 301; the main shaft of the motor 101 is connected to the transmission shaft 103 through a coupling 102, and the transmission shaft 103 is connected to the rotating seat through a worm gear mechanism 104; the transmission shaft 103 is driven to rotate by the motor 101, thereby driving the worm gear mechanism 104 to work, and correspondingly, the grain discharge wheel 200 also rotates accordingly;

[0030] In this embodiment, the discharge port of the dryer 01 is circular, and the angle δ between the line connecting the discharge port of the dryer 01 to the edge of the rotating seat 201 and the horizontal plane is smaller than the minimum repose angle of the grain and oil material drying process; when the grain discharge wheel 200 rotates clockwise, since the grain discharge teeth 202 are spiral teeth, the grain and oil materials are discharged along the grain discharge teeth 202, thereby discharging grain; when the grain discharge wheel 200 stops rotating, since the angle δ is smaller than the minimum repose angle of the grain and oil material drying process and the blocking effect of the grain discharge teeth 202, the grain discharge wheel 200 plays a blocking role, and the grain and oil materials cannot flow out automatically.

[0031] The angle of repose described in this embodiment, also known as the angle of repose, is the minimum angle between the inclined plane and the horizontal surface when the object placed on it is in a critical state of sliding down the inclined plane (that is, as the inclination angle increases, the object on the inclined plane will slide more easily; when the object reaches the state of starting to slide down, the angle of the critical state is called the angle of repose). In addition, in order to accurately predict the stacking angle of granular materials, existing research uses numerical simulation methods to simulate and predict granular materials in a stacking state. Taking rice granular materials as an example, the discrete element method and MATLAB graphics and image processing technology are used to simulate the accumulation phenomenon of rice in a bottomless cylinder, and the contour of the stacking image is linearly fitted to predict the rice stacking angle under non-experimental conditions. The predicted stacking angle is 22.66°±0.49°. Compared with the actual stacking test, the test stacking angle is 22.62°±0.33°, with an error of 0.18%.

[0032] See also Figure 1-Figure 4The bracket includes a fixed frame 302 and a second bearing seat 304 disposed on the fixed frame 302; wherein a rotating shaft is disposed at the bottom of the rotating seat, and the lower end of the rotating shaft passes through the second bearing seat 304 and is connected to the worm gear mechanism 104; the second bearing seat 304 is provided with a bearing between positions corresponding to the rotating shaft. In addition, a plane bearing 303 is also disposed on the fixed frame 302 for supporting the bottom surface of the rotating seat 201.

[0033] Example 2

[0034] See also Figure 1-Figure 4 The tower type grain and oil dryer 01 of the utility model comprises a dryer 01, a grain discharge device and an elevator 03, wherein the dryer 01 is used to dry the material, the grain discharge device is used to discharge the material in the dryer 01 into the lower dragon 02, and the elevator 03 is used to transport the material in the lower dragon 02 back to the dryer 01, wherein the dryer 01 is a plurality of groups, and the plurality of groups of dryers 01 are arranged in parallel, and correspondingly, the grain discharge device is a plurality of groups, and the plurality of groups of grain discharge devices are arranged in parallel; the transmission shafts 103 in two adjacent groups of grain discharge devices in the parallel arrangement are connected by a coupling, so that a plurality of groups of grain discharge devices can be driven to work synchronously by a group of motors 101, thereby greatly reducing the cost.

[0035] The above is a preferred implementation mode of the present invention, but the implementation mode of the present invention is not limited by the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A grain discharge device, characterized in that: It includes a frame, a grain discharge wheel arranged on the frame, and a grain discharge driving device for driving the grain discharge wheel to rotate, wherein the grain discharge wheel is arranged below the discharge port of the dryer, and includes a bracket, a rotating seat arranged on the bracket, and grain discharge teeth arranged on the rotating seat; the rotating seat is rotatably connected to the bracket, and the rotating seat is conical; the bracket is installed on the frame; the grain discharge teeth are multiple groups, and the multiple groups of grain discharge teeth are arranged along the circumferential direction of the rotating seat; each group of grain discharge teeth is spiral.

2. The grain discharge device according to claim 1, characterized in that: The grain discharge driving device includes a transmission shaft and a motor for driving the transmission shaft to rotate, wherein the transmission shaft is installed on a first bearing seat, and the first bearing seat is installed on the frame; the main shaft of the motor is connected to the transmission shaft through a coupling, and the transmission shaft and the rotating seat are connected through a worm gear mechanism.

3. The grain discharge device according to claim 2, characterized in that: The bracket includes a fixed frame and a second bearing seat arranged on the fixed frame; wherein a rotating shaft is arranged at the bottom of the rotating seat, and the lower end of the rotating shaft passes through the second bearing seat and is connected to the worm gear mechanism; the second bearing seat is provided with a bearing between the positions corresponding to the rotating shaft.

4. The grain discharge device according to claim 3, characterized in that: The fixing frame is also provided with a plane bearing for supporting the bottom surface of the rotating seat.

5. The grain discharge device according to claim 3, characterized in that: The first bearing seats are divided into two groups, and the two groups of first bearing seats are located on both sides of the worm gear mechanism.

6. The grain discharge device according to claim 1, characterized in that: The discharge port of the dryer is circular.

7. The grain discharge device according to claim 6, characterized in that: The angle δ between the line from the discharge port of the dryer to the edge of the rotating seat and the horizontal plane is smaller than the minimum repose angle of the grain and oil material drying process.

8. A tower type grain and oil dryer using the grain discharge device according to any one of claims 1 to 7, characterized in that: It includes a dryer, a grain discharge device and an elevator, wherein the dryer is used to dry the material, the grain discharge device is used to discharge the material in the dryer into the lower dragon, and the elevator is used to transport the material in the lower dragon back to the dryer.

9. The tower type grain and oil drying machine according to claim 8, characterized in that: There are multiple groups of dryers, which are arranged in parallel. Correspondingly, there are multiple groups of grain discharge devices, which are arranged in parallel.

10. The tower type grain and oil drying machine according to claim 9, characterized in that: The transmission shafts in two adjacent groups of grain discharge devices arranged in parallel are connected through a coupling.

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