Threshing mechanism for corn thresher

Abstract

The utility model discloses a threshing mechanism for a corn thresher, which relates to the technical field of corn threshing and comprises a frame, a screen is fixedly mounted in the top surface of the frame, a receiving tray is fixedly mounted in the frame below the screen, a threshing mechanism body is mounted on the top surface of the frame, and the threshing mechanism body is mounted on the top surface of the frame. The threshing mechanism body comprises a bearing seat, under the cooperation of positioning pieces installed at the two ends of each installation rod and corresponding positioning grooves, installation and positioning of swinging hammers installed on the surfaces of the installation rods between the two installation discs are completed, and after positioning is completed, through the cooperation of positioning sleeves, corresponding positioning insertion blocks and threaded buckles, the swinging hammers are installed on the surfaces of the installation rods. The positioning sleeves are mounted and fixed on the surfaces of the corresponding mounting discs, so that the swinging hammers are mounted and fixed between the two mounting discs, mounting rods for mounting the swinging hammers are convenient to disassemble and assemble, and the problems that most mounting rods for existing threshing mechanism swinging hammers are fixed in a welding mode, and the swinging hammers are inconvenient to disassemble, assemble and replace are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of corn threshing, in particular to a threshing mechanism for a corn thresher. Background Art

[0002] After the corn is harvested, it needs to be threshed. With the continuous advancement of technology, the emergence of some special corn threshers has replaced the manual threshing work. The driving mechanism in the thresher drives the threshing mechanism to complete the threshing of corn.

[0003] However, the swing hammer is one of the important components of the threshing mechanism in the existing corn thresher. When it is installed through the mounting rod, the swing hammer is mostly fixed with the mounting rod by welding, which is inconvenient to disassemble and replace the swing hammer later. Secondly, when the thresher is working, a small part of the threshed corn kernels are easily discharged from the discharge port along with the cob stalks, and the corn kernels discharged from the cob stalk discharge port need to be collected manually later, which increases the labor intensity of manual work. Utility Model Content

[0004] In order to solve the problem that the mounting rod for the swing hammer is mostly fixed by welding, which makes it inconvenient to disassemble and replace the swing hammer later; the purpose of the utility model is to provide a threshing mechanism for a corn thresher.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a threshing mechanism for a corn thresher, comprising a frame, a screen is fixedly installed in the top surface of the frame, a receiving tray is fixedly installed in the frame below the screen, a threshing mechanism body is installed on the top surface of the frame, the threshing mechanism body comprises a bearing seat, the number of the bearing seats is two, the two bearing seats are fixedly installed in the middle of the two sides of the top surface of the frame, a rotating shaft is rotatably installed in the two bearing seats, the surface of the rotating shaft is symmetrically sleeved with a mounting disk, the number of the mounting disk is two;

[0006] An evenly distributed mounting rod is detachably installed between the two mounting plates, and both ends of the mounting rod are sleeved with positioning pieces, and the surface of the mounting plate is provided with evenly distributed positioning grooves, and the positioning piece is slidably clamped in the positioning groove, and the surface of the mounting rod is slidably sleeved with evenly arranged swing hammers, and the surfaces of the two mounting plates are slidably sleeved with positioning sleeves, and evenly distributed positioning plug-ins are fixedly installed on the inner surface of the positioning sleeves, and the positioning plug-ins are slidably inserted in the mounting plate, and the inner thread of the positioning sleeve surface is provided with evenly distributed threaded buckles, and the threaded buckles pass through the positioning plug-in and are threadedly clamped in the mounting plate.

[0007] Preferably, a discharge port is provided on one side of the frame, and a receiving platform is fixedly installed on the side of the discharge port of the frame. Evenly distributed auxiliary grooves are provided in the receiving platform, and a recovery plate is fixedly installed on the bottom surface of the receiving platform, and the recovery plate cooperates with the auxiliary grooves.

[0008] Preferably, a drive shaft is fixedly mounted on one end of the rotating shaft, a pulley is fixedly mounted on one end of the drive shaft, and evenly distributed limiting grooves are provided on the surfaces of the two mounting plates, and the positioning plug is slidably mounted in the limiting grooves.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. In the present invention, the positioning pieces installed at both ends of each mounting rod cooperate with the corresponding positioning grooves to complete the installation and positioning of the swing hammer installed on the surface of the mounting rod between the two mounting plates. After the positioning is completed, the positioning sleeve is matched with the corresponding positioning plug and the threaded buckle to complete the installation and fixation of the positioning sleeve on the surface of the corresponding mounting plate, thereby completing the installation and fixation of the swing hammer between the two mounting plates, making it easy to disassemble and assemble the mounting rod for installing the swing hammer, and solving the problem that the existing mounting rod for the swing hammer of the threshing mechanism is mostly fixed by welding, which makes it inconvenient to disassemble and replace the swing hammer.

[0011] 2. In the utility model, a small portion of corn kernels discharged from the discharge port along with the cob stalks fall onto the receiving platform together with the cob stalks. The corn kernels fall into the recovery tray through the auxiliary trough provided in the receiving platform, and then slide through the recovery tray to the receiving tray for centralized collection of the corn kernels. There is no need to manually collect the corn kernels discharged from the cob stalk discharge port later, thereby reducing the labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 This is a schematic diagram of the main structure of the threshing mechanism of the utility model.

[0015] Figure 3 This is a schematic diagram of the decomposition structure of the threshing mechanism of the utility model.

[0016] Figure 4 For this utility model Figure 3A magnified view of the structure at center A.

[0017] Figure 5 This is a schematic diagram of the frame structure of the utility model.

[0018] In the figure: 1. frame; 11. screen; 12. receiving tray; 121. protective plate; 13. discharge port; 131. protective cover; 2. threshing mechanism body; 21. bearing seat; 22. rotating shaft; 23. mounting plate; 231. positioning groove; 232. limiting groove; 24. mounting rod; 241. positioning piece; 25. swing hammer; 26. positioning sleeve; 261. positioning plug; 27. threaded buckle; 3. driving shaft; 31. pulley; 4. receiving platform; 41. auxiliary groove; 42. recovery tray; 5. support seat. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Figure 1-5 As shown, the utility model provides a threshing mechanism for a corn thresher, including a frame 1, a screen 11 is fixedly installed on the top surface of the frame 1, a receiving tray 12 is fixedly installed on the frame 1 below the screen 11, a threshing mechanism body 2 is installed on the top surface of the frame 1, and the threshing mechanism body 2 includes a bearing seat 21, the number of the bearing seats 21 is two, the two bearing seats 21 are fixedly installed in the middle of the two sides of the top surface of the frame 1, a rotating shaft 22 is rotatably installed in the two bearing seats 21, and the surface of the rotating shaft 22 is symmetrically sleeved with a mounting plate 23, the number of the mounting plate 23 is two, and a uniformly distributed mounting plate is detachably installed between the two mounting plates 23. Rod 24, both ends of the mounting rod 24 are sleeved with positioning pieces 241, the surface of the mounting plate 23 is provided with evenly distributed positioning grooves 231, the positioning pieces 241 are slidably clamped in the positioning grooves 231, the surface of the mounting rod 24 is slidably sleeved with evenly arranged swing hammers 25, the surfaces of the two mounting plates 23 are slidably sleeved with positioning sleeves 26, the inner surface of the positioning sleeves 26 is fixedly installed with evenly distributed positioning blocks 261, the positioning blocks 261 are slidably inserted in the mounting plate 23, the inner thread of the positioning sleeve 26 surface is provided with evenly distributed threaded buckles 27, the threaded buckles 27 pass through the positioning blocks 261 and are threadedly clamped in the mounting plate 23;

[0021] The installation and fixation of the screen 11 and the threshing mechanism body 2 are respectively completed by the frame 1. The threshing mechanism body 2 is a prior art and is driven to operate by a driving device. The threshing work of the corn cobs in the screen 11 is completed by the swing hammer 25 in the threshing mechanism body 2. The corn kernels after threshing of the corn cobs pass through the screen 11 and fall into the receiving tray 12, and slide into the collecting device through the receiving tray 12 for centralized collection. The installation and positioning of the rotating shaft 22 are completed by the two bearing seats 21, and the rotating shaft 22 is assisted to rotate. Under the cooperation of the positioning pieces 241 installed at both ends of each mounting rod 24 and the corresponding positioning grooves 231, the installation and positioning of the swing hammer 25 installed on the surface of the mounting rod 24 between the two mounting plates 23 are completed. After the positioning is completed, the positioning sleeve 26 is installed and fixed on the surface of the corresponding mounting plate 23 under the cooperation of the positioning plug 261 and the threaded buckle 27, thereby completing the installation and fixation of the swing hammer 25 between the two mounting plates 23.

[0022] A discharge port 13 is provided on one side of the frame 1, and a receiving platform 4 is fixedly installed on the frame 1 on one side of the discharge port 13. Evenly distributed auxiliary grooves 41 are provided in the receiving platform 4, and a recovery plate 42 is fixedly installed on the bottom of the receiving platform 4. The recovery plate 42 cooperates with the auxiliary grooves 41. The corn cobs are discharged through the discharge port 13 after threshing, and a small part of the corn kernels discharged from the discharge port 13 along with the stalks fall onto the receiving platform 4 together with the stalks. The corn kernels fall into the recovery plate 42 through the auxiliary grooves 41 provided in the receiving platform 4, and slide through the recovery plate 42 to the receiving plate 12 for centralized collection of the corn kernels. There is no need to manually collect the corn kernels discharged from the cob stalk discharge port 13 later, thereby reducing the manual workload.

[0023] A drive shaft 3 is fixedly installed at one end of the rotating shaft 22, and a pulley 31 is fixedly installed at one end of the drive shaft 3. The pulley 31 installed at one end of the drive shaft 3 is connected to the driving device through a belt. The driving device controls the drive shaft 3 to drive the threshing mechanism body 2 to operate, thereby completing the threshing work of the corn cobs in the screen 11.

[0024] The surfaces of the two mounting plates 23 are provided with evenly distributed limiting grooves 232, and the positioning plug 261 is slidably locked in the limiting grooves 232. The corresponding positioning plug 261 is positioned by the limiting grooves 232 respectively opened on the surfaces of the two mounting plates 23, thereby completing the sleeve positioning of the positioning sleeve 26 on the surface of the corresponding mounting plate 23.

[0025] A protective plate 121 is fixedly installed on one end of the receiving tray 12. The protective plate 121 cooperates with the receiving tray 12 to receive the corn kernels after threshing, so that the corn kernels are scattered.

[0026] A protective cover 131 is rotatably installed on one side of the frame 1 at the discharge port 13. The protective cover 131 cooperates with the discharge port 13 to work together to prevent a large number of threshed corn kernels from being discharged from the discharge port 13 along with the corn stalks. Support seats 5 are fixedly installed at the four corners of the bottom surface of the frame 1. There are four support seats 5. The four support seats 5 are used to place the device in a designated area for corn threshing.

[0027] Working principle: The threshing work of the corn cobs in the screen 11 is completed by the swing hammer 25 in the threshing mechanism body 2. After the corn cobs are threshed, the corn kernels fall into the receiving tray 12 through the screen 11, and slide into the collecting device through the receiving tray 12 for centralized collection. The installation and positioning of the rotating shaft 22 are completed by the two bearing seats 21, and the rotating shaft 22 is assisted to rotate. Under the cooperation of the positioning pieces 241 installed at both ends of each mounting rod 24 and the corresponding positioning grooves 231, the installation and positioning of the swing hammer 25 installed on the surface of the mounting rod 24 between the two mounting plates 23 are completed. After the positioning is completed, under the cooperation of the positioning sleeve 26, the corresponding positioning plug 261 and the threaded buckle 27, the positioning sleeve 26 is installed and fixed on the surface of the corresponding mounting plate 23, thereby completing the installation and fixation of the swing hammer 25 between the two mounting plates 23.

[0028] A recovery tray 42 is fixedly installed on the bottom surface of the receiving platform 4. The recovery tray 42 cooperates with the auxiliary groove 41. The corn cobs after threshing are discharged through the discharge port 13. A small part of the corn kernels discharged from the discharge port 13 along with the stalks fall onto the receiving platform 4 together with the stalks. The corn kernels fall into the recovery tray 42 through the auxiliary groove 41 opened in the receiving platform 4, and slide through the recovery tray 42 to the receiving tray 12 for centralized collection of the corn kernels.

[0029] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A threshing mechanism for a corn thresher, comprising a frame (1), characterized in that: A screen (11) is fixedly installed in the top surface of the frame (1), a receiving plate (12) is fixedly installed in the frame (1) below the screen (11), a threshing mechanism body (2) is installed on the top surface of the frame (1), and the threshing mechanism body (2) includes a bearing seat (21), the number of the bearing seats (21) is two, the two bearing seats (21) are fixedly installed in the middle of the two sides of the top surface of the frame (1), a rotating shaft (22) is rotatably installed in the two bearing seats (21), and a mounting plate (23) is symmetrically sleeved on the surface of the rotating shaft (22), and the number of the mounting plate (23) is two; A uniformly distributed mounting rod (24) is detachably mounted between the two mounting plates (23), and both ends of the mounting rod (24) are sleeved with positioning pieces (241). The surface of the mounting plate (23) is provided with uniformly distributed positioning grooves (231), and the positioning piece (241) is slidably mounted in the positioning groove (231). The surface of the mounting rod (24) is slidably sleeved with uniformly arranged swing hammers (25). The surfaces of the two mounting plates (23) are slidably sleeved with positioning sleeves (26), and the inner surface of the positioning sleeve (26) is fixedly mounted with uniformly distributed positioning plugs (261), and the positioning plugs (261) are slidably mounted in the mounting plate (23). The inner thread of the surface of the positioning sleeve (26) is provided with uniformly distributed threaded buckles (27), and the threaded buckles (27) pass through the positioning plugs (261) and are threadedly mounted in the mounting plate (23).

2. A threshing mechanism for a corn thresher according to claim 1, characterized in that: A material discharge port (13) is provided on one side of the frame (1), and a material receiving platform (4) is fixedly installed on the frame (1) at one side of the material discharge port (13). Auxiliary grooves (41) are evenly distributed in the material receiving platform (4), and a recovery plate (42) is fixedly installed on the bottom surface of the material receiving platform (4), and the recovery plate (42) cooperates with the auxiliary grooves (41).

3. A threshing mechanism for a corn thresher according to claim 1, characterized in that: A drive shaft (3) is fixedly mounted on one end of the rotating shaft (22), and a pulley (31) is fixedly mounted on one end of the drive shaft (3).

4. A threshing mechanism for a corn thresher according to claim 1, characterized in that: The surfaces of the two mounting plates (23) are both provided with evenly distributed limiting grooves (232), and the positioning inserts (261) are slidably engaged in the limiting grooves (232).

5. The threshing mechanism for a corn thresher according to claim 1, characterized in that: A protective plate (121) is fixedly mounted on one end portion of the receiving tray (12), and the protective plate (121) cooperates with the receiving tray (12).

6. A threshing mechanism for a corn thresher according to claim 2, characterized in that: A protective cover (131) is rotatably mounted on one side of the frame (1) located at the discharge port (13), and the protective cover (131) cooperates with the discharge port (13).

7. The threshing mechanism for a corn thresher according to claim 1, characterized in that: Support bases (5) are fixedly mounted on the four corners of the bottom surface of the frame (1), and the number of the support bases (5) is four.

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