Rice threshing machine

Abstract

The utility model discloses a rice thresher which comprises a threshing box, the top of the threshing box is fixedly connected with a feeding hopper, a discharging component is arranged in the threshing box, and a collecting component is arranged on one side of the threshing box. The discharging part comprises a support fixedly connected with the back face of the threshing box, a first motor fixedly connected with one side of the support, a lead screw fixedly connected with the output end of the first motor, a sliding frame connected with the outer side of the lead screw and a discharging plate fixedly connected with one side of the sliding frame. Through the arrangement of the threshing box, the feeding hopper, the discharging component and the collecting component, the problems that when an existing rice threshing machine is used, rice can be threshed, but threshed rice is stacked at the bottom of the threshing box and needs to be scraped out manually, operation is relatively time-consuming and labor-consuming, and the threshing efficiency is high are solved. And in the process that the impurities fall into a collecting box, the impurities easily fall onto the ground, manual cleaning is needed, and therefore the practicability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a rice thresher. Background Art

[0002] Rice is a cereal crop belonging to the genus Oryza in the Poaceae family. Rice is divided into indica rice and japonica rice, early rice and mid-late rice, glutinous rice and non-glutinous rice according to the type of rice grains. It is divided into conventional rice and hybrid rice according to the seed retention method. The rice grains are called rice grains. After the husks are removed from the rice grains, it is called brown rice. Brown rice can be obtained by grinding away the bran layer. Rice needs to be threshed after harvesting.

[0003] Existing patent CN219352418U discloses a rice thresher, which relates to the field of agricultural machinery technology. The rice thresher includes a separation box, a threshing assembly, and a screening assembly. A feed hopper is fixedly mounted on the top of the separation box, which is in communication with the interior of the separation box. The threshing assembly is arranged on the separation box, and the threshing assembly includes a drive motor and a threshing drum. The drive motor is used to drive the threshing drum to rotate, and the threshing drum is used to thresh the rice. The rice thresher can separate impurities inside the rice through the rotation of the fan blades, thereby improving the quality of the rice after threshing. The provision of a filter plate can also further screen the rice after threshing and screening, removing impurities such as rice straw, thereby reducing manual screening time. At the same time, the filter plate can be continuously shaken during screening to prevent clogging of the filter plate, which reduces the screening efficiency of the filter plate.

[0004] Based on the search of the above patents and in combination with the rice thresher in the prior art, it was found that although the above rice thresher can thresh rice when in use, the threshed rice accumulates at the bottom of the separation box and needs to be manually scraped out. The operation is relatively time-consuming and labor-intensive, and impurities can easily fall to the ground in the process of falling into the collection box, requiring manual cleaning, thereby reducing practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a rice thresher to solve the problem that the existing rice thresher mentioned in the above background technology can thresh rice during use, but the threshed rice accumulates at the bottom of the separation box, and manual work is required to remove the rice, which is relatively time-consuming and labor-intensive. In addition, impurities easily fall to the ground when falling into the collection box, requiring manual cleaning, thereby reducing practicality.

[0006] To achieve the above object, the utility model provides the following technical solution: a rice thresher, comprising a threshing box, a feeding hopper fixedly connected to the top of the threshing box, a discharge component provided in the threshing box, and a collecting component provided on one side of the threshing box;

[0007] The discharge component includes a bracket fixedly connected to the back of the threshing box, a first motor fixedly connected to one side of the bracket, a screw rod fixedly connected to the output end of the first motor, a sliding frame connected to the outside of the screw rod, a discharge plate fixedly connected to one side of the sliding frame, and a scraping component for preventing rice residue. The screw rod is screwed to the sliding frame, the screw rod is rotatably connected to the bracket, and the sliding frame passes through the threshing box and is slidably connected to the threshing box.

[0008] Preferably, the collecting component includes a debris discharge port opened on one side of the threshing box, a collecting box arranged on one side of the debris discharge port, a plurality of exhaust holes opened on one side of the collecting box and arranged evenly, a fixing frame fixedly connected to the top of the collecting box, a pressure rod connected to the fixing frame, a pressure plate fixedly connected to the top of the pressure rod, a first spring sleeved on the outside of the pressure rod, a movable plate fixedly connected to the bottom of the pressure rod, a connecting plate fixedly connected to one side of the movable plate, a clamping rod fixedly connected to the top of the connecting plate, a recess opened on one side of the threshing box and a clamping slot opened on the top of the recess, the clamping rod is plugged into the clamping slot, and the pressure rod passes through the fixing frame and is slidably connected to the fixing frame.

[0009] Preferably, the scraping component includes a plurality of grooves evenly arranged at the bottom of the discharge plate, a sliding rod arranged in the groove, a second spring fixedly connected to the top of the sliding rod, and a scraper fixedly connected to the bottom of the sliding rod, the scraper is arc-shaped, and the sliding rod is slidably connected to the groove.

[0010] Preferably, a guide groove is provided on the top of the bracket, and a guide block is fixedly connected to the bottom of the sliding frame, and the guide block is slidably connected to the guide groove.

[0011] Preferably, a transverse plate is fixedly connected to one side of the threshing box, a limiting groove is provided on the top of the transverse plate, a limiting block is fixedly connected to the bottom of the collecting box, and the limiting block is plugged into the limiting groove.

[0012] Preferably, a first rotating shaft is rotatably connected inside the threshing box, a threshing roller is fixedly connected to the outside of the first rotating shaft, a second motor is fixedly connected to one end of the first rotating shaft, a first driving wheel is fixedly connected to the outside of the first rotating shaft, a second rotating shaft is rotatably connected to one side of the threshing box, a blade is fixedly connected to one side of the second rotating shaft, and a first driven wheel is fixedly connected to the other side of the second rotating shaft, a first belt is sleeved on the outside of the first driving wheel and the first driven wheel, and the first driving wheel and the first driven wheel are connected by a first belt transmission.

[0013] Preferably, a filter plate is provided in the threshing box, a reset groove is provided on the back side of the threshing box, a reset block is slidably connected to the reset groove, a third spring is fixedly connected to the top of the reset block, the lower part of the threshing box is rotatably connected to the third rotating shaft, cams are fixedly connected to both sides of the third rotating shaft, a second driving wheel is fixedly connected to the outer side of the second rotating shaft, one end of the third rotating shaft is fixedly connected to the second driven wheel, a second belt is sleeved on the outer sides of the second driving wheel and the second driven wheel, the second driving wheel and the second driven wheel are connected through a second belt transmission, and the reset block is fixedly connected to the filter plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up a threshing box, a feed hopper and a discharge component, the first motor can control the rotation of the screw rod, which can control the sliding frame to drive the discharge plate to move. The movement of the discharge plate can discharge the separated rice from the threshing box, eliminating the need for manual scraping of the rice, thereby reducing labor intensity and improving discharge efficiency. The scraper can be pushed by the second spring to closely contact the bottom of the threshing box, synchronously discharging the rice that has sunk to the bottom, preventing the rice from remaining in the threshing box, and discharging the rice cleanly, thereby greatly improving the practicality and efficiency of the equipment.

[0016] 2. By providing a collecting component, the impurities generated by separation can be blown into the collection box for unified collection. The exhaust hole can facilitate the discharge of air. At the same time, the impurities are collected in the collection box, which can prevent the impurities from scattering on the ground and ensure the cleanliness of the working environment. At the same time, the collection box can be quickly removed from the threshing box, which can facilitate the cleaning of impurities in the collection box, thereby further improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the three-dimensional structure provided by the utility model;

[0018] Figure 2 A front view provided for the present utility model;

[0019] Figure 3 The utility model provides Figure 2 A three-dimensional cross-section at AA in the middle;

[0020] Figure 4 The utility model provides Figure 3 Enlarged view of point C in the middle;

[0021] Figure 5 The utility model provides Figure 3 Enlarged view of point D in the middle;

[0022] Figure 6 A left side view provided for the present utility model;

[0023] Figure 7 The utility model provides Figure 6 A three-dimensional cross-section of the middle BB;

[0024] Figure 8 The utility model provides Figure 7 Enlarged view of point E in the middle.

[0025] In the figure: 1, threshing box; 11, feeding hopper; 21, bracket; 22, first motor; 23, screw rod; 24, sliding frame; 25, discharge plate; 31, debris discharge port; 32, collecting box; 33, exhaust hole; 34, fixing frame; 35, pressure rod; 36, pressure plate; 37, first spring; 38, moving plate; 39, connecting plate; 40, clamping rod; 41, notch; 42, clamping groove; 51, groove; 52, sliding rod; 53, second spring; 54, scraper; 61, guide Groove; 62, guide block; 71, transverse plate; 72, limit groove; 73, limit block; 81, first rotating shaft; 82, threshing roller; 83, second motor; 84, first driving wheel; 85, second rotating shaft; 86, blade; 87, first driven wheel; 88, first belt; 91, filter plate; 92, reset groove; 93, reset block; 94, third spring; 95, third rotating shaft; 96, cam; 97, second driving wheel; 98, second driven wheel; 99, second belt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4The present invention provides a technical solution: a rice thresher comprises a threshing box 1, a feed hopper 11 is fixedly connected to the top of the threshing box 1, a discharging component is provided in the threshing box 1, and a collecting component is provided on one side of the threshing box 1. The discharging component comprises a bracket 21 fixedly connected to the back of the threshing box 1, a first motor 22 fixedly connected to one side of the bracket 21, a screw rod 23 fixedly connected to the output end of the first motor 22, a sliding frame 24 connected to the outer side of the screw rod 23, a discharging plate 25 fixedly connected to one side of the sliding frame 24, and a scraping component for preventing rice residue. The screw rod 23 is screwed to the sliding frame 24, the screw rod 23 is rotatably connected to the bracket 21, the sliding frame 24 penetrates the threshing box 1 and is slidably connected to the threshing box 1. The feed hopper 11 can facilitate the insertion of rice into the threshing box 1. When the first motor 22 is started, it can control the screw rod 23 to rotate, and the screw rod 23 can control the sliding frame 24 to drive the discharging plate 25 to move. The movement of the discharging plate 25 can discharge the threshed rice, and there is no need to manually clean the rice. The scraper 54 is connected to the bottom of the threshing box 1 and the scraper 54 is connected to the bottom of the threshing box 1.

[0028] See also Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 as well as Figure 8The collecting component includes a debris discharge port 31 opened on one side of the threshing box 1, a collecting box 32 provided on one side of the debris discharge port 31, a plurality of exhaust holes 33 evenly arranged on one side of the collecting box 32, a fixing frame 34 fixedly connected to the top of the collecting box 32, a pressure rod 35 connected to the fixing frame 34, a pressure plate 36 fixedly connected to the top of the pressure rod 35, a first spring 37 sleeved on the outside of the pressure rod 35, a movable plate 38 fixedly connected to the bottom of the pressure rod 35, a connecting plate 39 fixedly connected to one side of the movable plate 38, a clamping rod 40 fixedly connected to the top of the connecting plate 39, a recess 41 opened on one side of the threshing box 1 and a clamping groove 42 opened at the top of the recess 41, the clamping rod 40 is plugged into the clamping groove 42, the pressure rod 35 passes through the fixing frame 34 and is connected to the fixing frame 34 The first spring 37 is connected with the bottom of the pressure plate 36 and the top of the fixing frame 34, and the pressure rod 35 can be driven to move downward by pressing the pressure plate 36. At the same time, the first spring 37 is deformed, and the pressure rod 35 can drive the movable plate 38 and the connecting plate 39 to move downward, thereby driving the pressure rod 35 to move downward, and the collecting box 32 contacts the threshing box 1. The card rod 40 is aligned with the card slot 42. The reset of the first spring 37 can drive the card rod 40 to be inserted into the card slot 42, and the collecting box 32 can be connected and fixed with the threshing box 1. Subsequent impurities can be discharged into the collecting box 32 for unified collection, which can prevent impurities from scattering to the ground and polluting the working environment. A horizontal plate 71 is fixedly connected to one side of the threshing box 1, and a limiting groove 72 is provided on the top of the horizontal plate 71. The bottom of the collecting box 32 is fixed. The limiting block 73 is fixedly connected, and the limiting block 73 is plugged into the limiting groove 72. The limiting groove 72 and the limiting block 73 are both T-shaped. The collecting box 32 can drive the limiting block 73 to be inserted into the limiting groove 72, and can support and limit the collecting box 32 to prevent the collecting box 32 from vertically shifting, thereby improving the stability of the collecting box 32. The threshing box 1 is rotatably connected with a first rotating shaft 81, and a threshing roller 82 is fixedly connected to the outside of the first rotating shaft 81. One end of the first rotating shaft 81 is fixedly connected to a second motor 83, and the outside of the first rotating shaft 81 is fixedly connected to a first driving wheel 84. One side of the threshing box 1 is rotatably connected to a second rotating shaft 85, and a blade 86 is fixedly connected to one side of the second rotating shaft 85. The other side of the second rotating shaft 85 is fixedly connected to a first driven wheel 87. The first driving wheel 84 A first belt 88 is provided on the outer side of the first driven wheel 87. The first driving wheel 84 and the first driven wheel 87 are connected to each other through the first belt 88. The second motor 83 can drive the first rotating shaft 81 to rotate, and the first rotating shaft 81 can drive the threshing roller 82 to rotate, so as to thresh the rice. At the same time, the first rotating shaft 81 can drive the first driving wheel 84 to rotate, and the first driving wheel 84 can drive the first driven wheel 87 and the second rotating shaft 85 to rotate. The rotation of the second rotating shaft 85 can drive the blades 86 to rotate. The rotation of the blades 86 can blow away the raised impurities, etc., and it is convenient to blow them into the collection box 32 for collection, so that they can be separated from the rice. At the same time, the use cost can be reduced by using a single second motor 83 to drive. A filter plate 91 is provided in the threshing box 1.A reset groove 92 is provided on the back of the threshing box 1, a reset block 93 is slidably connected in the reset groove 92, a third spring 94 is fixedly connected to the top of the reset block 93, a third rotating shaft 95 is rotatably connected to the lower part of the threshing box 1, cams 96 are fixedly connected to both sides of the third rotating shaft 95, a second driving wheel 97 is fixedly connected to the outside of the second rotating shaft 85, and one end of the third rotating shaft 95 is fixedly connected to the second driven wheel 98. A second belt 99 is provided on the outside of the second driving wheel 97 and the second driven wheel 98. The second driving wheel 97 and the second driven wheel 98 are connected by a plurality of springs. The second belt 99 is connected in a transmission manner, and the reset block 93 is fixedly connected to the filter plate 91. The filter plate 91 can filter impurities. The second rotating shaft 85 can drive the second driving wheel 97 to rotate, which in turn can drive the second driven wheel 98 and the third rotating shaft 95 to rotate. The third rotating shaft 95 can drive the cam 96 to rotate, and the cam 96 can knock the filter plate 91. The reset block 93 can move synchronously with the filter plate 91, squeezing the third spring 94 to deform it, thereby causing the filter plate 91 to vibrate repeatedly, facilitating the discharge of rice.

[0029] Working principle: When working, the pressure plate 36 is pressed to drive the pressure rod 35 to move downward, and at the same time the first spring 37 is deformed, the pressure rod 35 can drive the movable plate 38 and the connecting plate 39 to move downward, and the connecting plate 39 can drive the card rod 40 to move downward, and then the limit block 73 is inserted into the limit groove 72. At this time, the connecting plate 39 is inserted into the notch 41, and the pressure plate 36 is released. The first spring 37 is reset to drive the card rod 40 to reset and insert it into the card groove 42, and the collecting box 32 can be connected and fixed with the threshing box 1, and then the second motor 83 is started. The second motor 83 can drive the first rotating shaft 81 to rotate, and the second motor 83 can drive the first rotating shaft 81 to rotate. A rotating shaft 81 can drive the threshing roller 82 and the first driving wheel 84 to rotate. The worker holds the rice stalk and places the rice ears into the inside of the threshing box 1 through the feed hopper 11. When the threshing roller 82 rotates, the rice ears can be threshed. The first driving wheel 84 can drive the first driven wheel 87 to rotate. The first driven wheel 87 can drive the second rotating shaft 85 to rotate. The second rotating shaft 85 can drive the blades 86 and the second driving wheel 97 to rotate. The rotation of the second driving wheel 97 can drive the second driven wheel 98 to rotate. The rotation of the second driven wheel 98 can drive the third rotating shaft 95 and the cam 96 to rotate. The rice falls through the blades 86. The blowing force generated by the rotation of the blades 86 can blow the impurities and the like into the collection box 32 for collection. The rice falls on the top of the filter plate 91. The rotation of the cam 96 can knock the filter plate 91. The third spring 94 can be used to make the filter plate 91 vibrate repeatedly, which can lift the impurities and the like, making it convenient to blow the impurities into the collection box 32 for collection. The filtered rice falls to the bottom of the threshing box 1. After threshing is completed, the first motor 22 is started. The first motor 22 can drive the screw rod 23 to rotate. The rotation of the screw rod 23 can drive the sliding frame 24 to move. The sliding frame 24 The movement can drive the discharge plate 25 to move. The second spring 53 is initially in a compressed state, which can push the scraper 54 to make close contact with the bottom of the threshing box 1. As the discharge plate 25 moves, the scraper 54 can be driven to move, and then all the rice accumulated at the bottom of the threshing box 1 can be discharged from the threshing box 1. Then, the pressing plate 36 is pressed again to disengage the card rod 40 from the card slot 42. Then, the collecting box 32 can be removed and the impurities therein can be cleaned out. The above is the working process of the entire device, and the contents not described in detail in this manual belong to the existing technology known to professional and technical personnel in this field.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice thresher, comprising a threshing box (1), characterized in that: A feed hopper (11) is fixedly connected to the top of the threshing box (1), a discharge component is provided inside the threshing box (1), and a collecting component is provided on one side of the threshing box (1); The discharge component comprises a bracket (21) fixedly connected to the back of the threshing box (1), a first motor (22) fixedly connected to one side of the bracket (21), a screw rod (23) fixedly connected to the output end of the first motor (22), a sliding frame (24) connected to the outside of the screw rod (23), a discharge plate (25) fixedly connected to one side of the sliding frame (24), and a scraping component for preventing rice residue, wherein the screw rod (23) is screwed to the sliding frame (24), the screw rod (23) is rotatably connected to the bracket (21), and the sliding frame (24) passes through the threshing box (1) and is slidably connected to the threshing box (1).

2. A rice thresher according to claim 1, characterized in that: The collecting component comprises a debris discharge port (31) provided on one side of the threshing box (1), a collecting box (32) provided on one side of the debris discharge port (31), a plurality of evenly arranged exhaust holes (33) provided on one side of the collecting box (32), a fixing frame (34) fixedly connected to the top of the collecting box (32), a pressure rod (35) connected to the fixing frame (34), a pressure plate (36) fixedly connected to the top of the pressure rod (35), a first spring (37) sleeved on the outside of the pressure rod (35), a movable plate (38) fixedly connected to the bottom of the pressure rod (35), a connecting plate (39) fixedly connected to one side of the movable plate (38), a clamping rod (40) fixedly connected to the top of the connecting plate (39), a recess (41) provided on one side of the threshing box (1), and a clamping groove (42) provided on the top of the recess (41), wherein the clamping rod (40) is plugged into the clamping groove (42), and the pressure rod (35) passes through the fixing frame (34) and is slidably connected to the fixing frame (34).

3. A rice thresher according to claim 1, characterized in that: The scraping component comprises a plurality of grooves (51) arranged evenly at the bottom of the discharge plate (25), a slide bar (52) arranged in the groove (51), a second spring (53) fixedly connected to the top of the slide bar (52), and a scraper (54) fixedly connected to the bottom of the slide bar (52), wherein the scraper (54) is arc-shaped, and the slide bar (52) is slidably connected to the groove (51).

4. A rice thresher according to claim 1, characterized in that: A guide groove (61) is provided on the top of the bracket (21), and a guide block (62) is fixedly connected to the bottom of the sliding frame (24), and the guide block (62) is slidably connected to the guide groove (61).

5. A rice thresher according to claim 2, characterized in that: A transverse plate (71) is fixedly connected to one side of the threshing box (1), a limiting groove (72) is provided on the top of the transverse plate (71), a limiting block (73) is fixedly connected to the bottom of the collecting box (32), and the limiting block (73) is plugged into the limiting groove (72).

6. A rice thresher according to claim 1, characterized in that: A first rotating shaft (81) is rotatably connected inside the threshing box (1), a threshing roller (82) is fixedly connected to the outside of the first rotating shaft (81), a second motor (83) is fixedly connected to one end of the first rotating shaft (81), a first driving wheel (84) is fixedly connected to the outside of the first rotating shaft (81), a second rotating shaft (85) is rotatably connected to one side of the threshing box (1), a blade (86) is fixedly connected to one side of the second rotating shaft (85), a first driven wheel (87) is fixedly connected to the other side of the second rotating shaft (85), a first belt (88) is sleeved on the outside of the first driving wheel (84) and the first driven wheel (87), and the first driving wheel (84) and the first driven wheel (87) are connected in transmission via the first belt (88).

7. A rice thresher according to claim 6, characterized in that: A filter plate (91) is provided in the threshing box (1), a reset groove (92) is provided on the back side of the threshing box (1), a reset block (93) is slidably connected in the reset groove (92), a third spring (94) is fixedly connected to the top of the reset block (93), a third rotating shaft (95) is rotatably connected to the lower part of the threshing box (1), cams (96) are fixedly connected to both sides of the third rotating shaft (95), a second driving wheel (97) is fixedly connected to the outside of the second rotating shaft (85), a second driven wheel (98) is fixedly connected to one end of the third rotating shaft (95), a second belt (99) is sleeved on the outside of the second driving wheel (97) and the second driven wheel (98), the second driving wheel (97) and the second driven wheel (98) are connected by the second belt (99), and the reset block (93) is fixedly connected to the filter plate (91).

Images