One-way clutch for seeder

Abstract

The utility model discloses a one-way clutch for a seeder. The one-way clutch comprises a clutch bin, the front end of the clutch bin is rotationally connected with an output shaft, the rear end of the clutch bin is rotationally connected with an input shaft, the front end of the input shaft and the rear end of the output shaft are in transmission connection through a one-way transmission mechanism, and the one-way transmission mechanism comprises a driving disc, a driven disc, a sliding disc, trapezoidal blocks and rib blocks. The driven disc is fixedly connected to the rear end of the output shaft, the front end of the driving disc is fixedly connected with four trapezoidal blocks which are uniformly distributed, the rear end of the driven disc is slidably connected with a sliding disc, the interior of the sliding disc is fixedly connected with rib blocks which are uniformly distributed, and the rib blocks and the longitudinally adjacent trapezoidal blocks are installed in a matched mode. When the seeding machine needs to stop or rotate reversely, the driving disc and the driven disc can be separated without manually shifting the operating rod, so that the use convenience of the one-way clutch for the seeding machine is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for seed drills, in particular to a one-way clutch for seed drills. Background Art

[0002] The one-way clutch for seed drill is a commonly used mechanical component in agricultural production. The one-way clutch is a special transmission device that only allows torque transmission in one direction, while in an idling or locked state in the other direction. According to different structures and functions;

[0003] Some existing seed drills use one-way clutches that separate the driving disc and the driven disc by manually turning an operating lever. This type of seed drill has some problems with the one-way clutch. For example, the manual operation of the operating lever makes the operation process more cumbersome during the use of the seed drill and affects the seeding effect of the seed drill. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a one-way clutch for a seed drill. When the seed drill needs to stop or reverse, the driving disc and the driven disc can be separated without manually turning the operating lever, which greatly improves the convenience of using the one-way clutch for the seed drill and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: a one-way clutch for a seed drill, comprising a clutch chamber;

[0006] Clutch chamber: its front end is rotatably connected to the output shaft, and the rear end of the clutch chamber is rotatably connected to the input shaft. The front end of the input shaft and the rear end of the output shaft are connected through a one-way transmission mechanism. The one-way transmission mechanism includes a driving disc, a driven disc, a sliding disc, a trapezoidal block and a rib. The driving disc is fixedly connected to the front end of the input shaft, and the driven disc is fixedly connected to the rear end of the output shaft. The front end of the driving disc is fixedly connected to four evenly distributed trapezoidal blocks, and the rear end of the driven disc is slidably connected to the sliding disc. The inside of the sliding disc is fixedly connected to evenly distributed ribs, and the ribs are all installed in conjunction with the longitudinally adjacent trapezoidal blocks. When the seeder needs to stop or reverse, the driving disc and the driven disc can be separated without manually toggling the operating lever, which greatly improves the convenience of using the one-way clutch for the seeder.

[0007] Furthermore, the one-way transmission mechanism also includes rib grooves and guide columns. The rib grooves are evenly arranged inside the driven disk, and the interior of the rib grooves is slidingly connected to the outer surfaces of the longitudinally adjacent rib blocks. The guide columns are evenly fixedly connected to the rear end of the driven disk. The interior of the sliding disk is provided with evenly distributed sliding openings, and the outer surfaces of the guide columns are slidingly connected to the interiors of the longitudinally adjacent sliding openings, providing a guiding effect for the sliding of the sliding disk.

[0008] Furthermore, the one-way transmission mechanism also includes a spring, which is evenly and fixedly connected between the rear wall of the driven disk and the front surface of the sliding disk. The springs are movably sleeved on the outer surfaces of the laterally adjacent guide columns to achieve the limitation of the sliding disk.

[0009] Furthermore, a door is provided at the upper end of the clutch compartment, and the door and the left and right ends of the clutch compartment are fixedly connected with connecting plates, threaded holes are provided inside the connecting plates, and bolts are threadedly connected between two vertically adjacent threaded holes, and nuts are threadedly connected at the lower ends of the bolts to achieve the closure of the clutch compartment and protect the transmission mechanism.

[0010] Furthermore, the front and rear inner walls of the clutch bin are fixedly connected to limit rings, the upper surfaces of the limit rings are in contact with the lower end surfaces of the bin door, and the left and right ends between the two limit rings are fixedly connected with closing plates, which correspond laterally to the connection between the laterally adjacent bin door and the clutch bin, providing installation support for the bin door and improving the sealing of the connection between the bin door and the clutch bin.

[0011] Furthermore, the front and rear ends of the clutch compartment are fixedly connected with mounting tubes, the outer surfaces of the mounting tubes are provided with external threads, the middle parts of the external threads are threadedly connected with mounting plates, and the interiors of the mounting plates are provided with evenly distributed mounting holes, which are convenient for adapting to different installation environments.

[0012] Furthermore, the rear end of the input shaft is fixedly connected to a sprocket, and the front end of the output shaft is fixedly connected to symmetrically distributed ribs, which facilitates external agricultural machinery to provide power to the clutch and facilitates transmission connection with the input end of the seed drill.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the one-way clutch for the seed drill has the following advantages:

[0014] When the driving disc rotates forward, the right-angled surface of the trapezoidal block fits with the side surface of the longitudinally adjacent rib block, so that the driving disc rotates and drives the driven disc to rotate through the sliding disc. When the driving disc stops, the driven disc stops rotating. When the driving disc rotates reversely, the inclined surface of the trapezoidal block contacts the side surface of the longitudinally adjacent rib block. With the assistance of the spring and the guide column, the sliding disc avoids into the interior of the driven disc, so that the driven disc does not rotate with it. The driving disc and the driven disc can be separated without manually turning the operating lever, which greatly improves the convenience of using the one-way clutch for the seed drill. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the interior of the utility model;

[0017] Figure 3This is a schematic diagram of the explosion structure of the clutch unit of the utility model;

[0018] Figure 4 This is an enlarged structural diagram of point A of the present invention.

[0019] In the figure: 1 clutch compartment, 2 input shaft, 3 output shaft, 4 one-way transmission mechanism, 41 driving plate, 42 driven plate, 43 sliding plate, 44 trapezoidal block, 45 rib block, 46 rib groove, 47 guide column, 48 spring, 5 limit ring, 6 closing plate, 7 compartment door, 8 connecting plate, 9 bolt, 10 mounting cylinder, 11 mounting plate, 12 rib, 13 sprocket. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 , this embodiment provides a technical solution: a one-way clutch for a seed drill, comprising a clutch chamber 1;

[0022] Clutch compartment 1: Its front end is rotatably connected to the output shaft 3, and the rear end of the clutch compartment 1 is rotatably connected to the input shaft 2. The rear end of the input shaft 2 is fixedly connected to the sprocket 13. The front end of the output shaft 3 is fixedly connected to the symmetrically distributed ribs 12. The front end of the input shaft 2 and the rear end of the output shaft 3 are connected through a one-way transmission mechanism 4. The one-way transmission mechanism 4 includes a driving disc 41, a driven disc 42, a sliding disc 43, a trapezoidal block 44 and a rib 45. The driving disc 41 is fixedly connected to the front end of the input shaft 2, and the driven disc 42 is fixedly connected to the rear end of the output shaft 3. The front end of the driving disc 41 is fixedly connected to four evenly distributed trapezoidal blocks 44. The rear end of the driven disc 42 is slidably connected to the sliding disc 43. The interior of 43 is fixedly connected with uniformly distributed ribs 45, and the ribs 45 are all installed in conjunction with the longitudinally adjacent trapezoidal blocks 44. The one-way transmission mechanism 4 also includes rib grooves 46 and guide columns 47. The rib grooves 46 are uniformly arranged inside the driven disk 42, and the interior of the rib grooves 46 are all slidably connected to the outer surfaces of the longitudinally adjacent ribs 45. The guide columns 47 are uniformly fixedly connected to the rear end of the driven disk 42. The interior of the sliding disk 43 is provided with uniformly distributed sliding ports, and the outer surfaces of the guide columns 47 are all slidably connected to the inner sides of the longitudinally adjacent sliding ports. The one-way transmission mechanism 4 also includes a spring 48, which is uniformly fixedly connected between the rear wall of the driven disk 42 and the front surface of the sliding disk 43, and the springs 48 are all movable sleeves. The outer surface of the guide column 47 adjacent to the horizontal direction is connected to the power output end of the external agricultural machinery through a chain and the output shaft 3 is connected to the power input end of the seed drill through the rib 12. The power output end of the external agricultural machinery drives the sprocket 13 to rotate through the chain, thereby driving the input shaft 2 to rotate. The rotation of the input shaft 2 drives the driving disc 41 to rotate, thereby driving the four trapezoidal blocks 44 to rotate. The right-angled surfaces of the trapezoidal blocks 44 are all in contact with the side surfaces of the longitudinally adjacent ribs 45, thereby driving the sliding disc 43 to follow the driving disc 41 to rotate, thereby driving the driven disc 42 to rotate, and the driven disc 42 rotates to drive the output shaft 3 to rotate, thereby making the seed drill run. When the driving disc 41 stops rotating, When the drive plate 41 is in motion, the sliding plate 43 loses the driving force and stops rotating, thereby driving the driven plate 42 to stop rotating. When the driving plate 41 rotates in the opposite direction, the trapezoidal surface of the trapezoidal block 44 contacts the side surface of the longitudinally adjacent rib block 45, pushing the rib block 45 to move forward inside the corresponding rib groove 46, thereby driving the sliding plate 43 to move forward under the guidance of the guide column 47. At the same time, the spring 48 is elastically compressed. When the trapezoidal surface of the trapezoidal block 44 stops contacting the longitudinally adjacent rib block 45, the elastic force of the spring 48 pushes the sliding plate 43 to reset and wait for the next forward movement, thereby making the sliding plate 43 stop rotating with the driving plate 41, and finally making the driven plate 42 stop rotating, thereby realizing the automatic separation of the driving plate 41 and the driven plate 42.

[0023] Among them, a warehouse door 7 is provided at the upper end of the clutch warehouse 1, and the warehouse door 7 and the left and right ends of the clutch warehouse 1 are fixedly connected with connecting plates 8. Threaded holes are provided inside the connecting plates 8, and bolts 9 are threadedly connected between the two vertically adjacent threaded holes. The lower ends of the bolts 9 are threadedly connected with nuts. The front and rear inner walls of the clutch warehouse 1 are fixedly connected with limiting rings 5, and the upper surfaces of the limiting rings 5 ​​are fitted with the lower end surfaces of the warehouse door 7. The left and right ends between the two limiting rings 5 ​​are fixedly connected with closing plates 6, and the closing plates 6 are transversely corresponding to the connection points of the laterally adjacent warehouse doors 7 and the clutch warehouse 1. The warehouse door 7 is placed on the upper end of the clutch warehouse 1, and the lower surface of the warehouse door 7 is fitted with the upper surface of the limiting ring 5. The two vertically adjacent threaded holes are stably connected by bolts 9 and nuts, thereby realizing the connection of the two vertically adjacent connecting plates 8, and finally realizing the stable connection of the warehouse door 7 and the clutch warehouse 1;

[0024] Among them: the front and rear ends of the clutch compartment 1 are fixedly connected with a mounting cylinder 10, the outer surface of the mounting cylinder 10 is provided with an external thread, the middle part of the external thread is threadedly connected with a mounting plate 11, and the interior of the mounting plate 11 is provided with evenly distributed mounting holes. The front and rear mounting plates 11 are rotated in sequence, and the mounting plates 11 move longitudinally under the action of the corresponding external threads. When the mounting plates 11 reach the required position, the mounting holes inside the mounting plates 11 are connected to the connecting threaded holes in the working area by installing bolts, thereby realizing stable installation of the clutch.

[0025] The working principle of a one-way clutch for a seed drill provided by the utility model is as follows: during operation, the personnel first rotate the front and rear mounting plates 11 in sequence according to the installation environment, and the mounting plates 11 all move longitudinally under the action of the corresponding external threads. When the mounting plates 11 all reach the required position, the personnel connect the mounting holes inside the mounting plates 11 with the connecting threaded holes in the working area through the mounting bolts, thereby achieving stable installation of the clutch, and then the personnel place the warehouse door 7 on the upper end of the clutch warehouse 1, and the lower surface of the warehouse door 7 fits with the upper surface of the limit ring 5, and the two vertically adjacent threaded holes are stably connected by bolts 9 and nuts, thereby achieving the connection of the two vertically adjacent connecting plates 8, and finally achieving a stable connection between the warehouse door 7 and the clutch warehouse 1, and then the power output end of the external agricultural machinery is connected to the sprocket 13 through a chain, and the output shaft 3 is connected to the power input end of the seed drill through the ribs 12. The power output end of the external agricultural machinery drives the sprocket 13 to rotate through the chain, thereby driving the input shaft 2 to rotate, and the rotation of the input shaft 2 drives the drive disk 4 1 rotates, thereby driving the four trapezoidal blocks 44 to rotate. The right-angled surfaces of the trapezoidal blocks 44 are all in contact with the side surfaces of the longitudinally adjacent ribs 45, thereby driving the sliding plate 43 to rotate with the driving plate 41, thereby driving the driven plate 42 to rotate. The rotation of the driven plate 42 drives the output shaft 3 to rotate, thereby making the seed drill run. When the driving plate 41 stops rotating, the sliding plate 43 loses the driving force and stops rotating, thereby driving the driven plate 42 to stop rotating. When the driving plate 41 rotates in the opposite direction, the trapezoidal surfaces of the trapezoidal blocks 44 are in contact with the longitudinally adjacent ribs 45. The side surfaces of the blocks 45 contact each other, pushing the rib blocks 45 forward in the corresponding rib grooves 46, thereby driving the sliding plate 43 to move forward under the guidance of the guide posts 47. At the same time, the springs 48 are elastically compressed. When the trapezoidal surface of the trapezoidal block 44 ends contact with the longitudinally adjacent rib blocks 45, the elastic force of the springs 48 pushes the sliding plate 43 to reset, waiting for the next forward movement, thereby preventing the sliding plate 43 from rotating with the driving plate 41, and finally preventing the driven plate 42 from rotating, thereby realizing automatic separation of the driving plate 41 and the driven plate 42.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A one-way clutch for a seed drill, characterized by: comprising a clutch chamber (1); The clutch chamber (1) has an output shaft (3) at its front end, and an input shaft (2) at its rear end. The front end of the input shaft (2) and the rear end of the output shaft (3) are connected in transmission via a one-way transmission mechanism (4). The one-way transmission mechanism (4) comprises a driving disc (41), a driven disc (42), a sliding disc (43), a trapezoidal block (44), and a rib (45). The driving disc (41) is fixedly connected to the front end of the input shaft (2), and the driven disc (42) is fixedly connected to the rear end of the output shaft (3). The front end of the driving disc (41) is fixedly connected to four evenly distributed trapezoidal blocks (44). The rear end of the driven disc (42) is slidably connected to the sliding disc (43). The interior of the sliding disc (43) is fixedly connected to evenly distributed ribs (45). The ribs (45) are all mounted in conjunction with the longitudinally adjacent trapezoidal blocks (44).

2. A one-way clutch for a seed drill according to claim 1, characterized in that: The one-way transmission mechanism (4) further comprises a rib groove (46) and a guide column (47), wherein the rib groove (46) is evenly arranged inside the driven disk (42), the inside of the rib groove (46) is slidably connected to the outer surface of the longitudinally adjacent rib block (45), the guide column (47) is evenly fixedly connected to the rear end of the driven disk (42), the inside of the sliding disk (43) is provided with evenly distributed sliding openings, and the outer surface of the guide column (47) is slidably connected to the inside of the longitudinally adjacent sliding openings.

3. The one-way clutch for a seed drill according to claim 2, characterized in that: The one-way transmission mechanism (4) further comprises a spring (48), wherein the spring (48) is evenly and fixedly connected between the rear wall of the driven disk (42) and the front surface of the sliding disk (43), and the spring (48) is movably sleeved on the outer surface of the laterally adjacent guide pillars (47).

4. The one-way clutch for a seed drill according to claim 1, characterized in that: The upper end of the clutch chamber (1) is provided with a chamber door (7), and the chamber door (7) and the left and right ends of the clutch chamber (1) are fixedly connected with connecting plates (8), and the interior of the connecting plates (8) is provided with threaded holes, and bolts (9) are threadedly connected between two vertically adjacent threaded holes, and the lower ends of the bolts (9) are threadedly connected with nuts.

5. The one-way clutch for a seed drill according to claim 4, characterized in that: The inner walls of the front and rear sides of the clutch bin (1) are fixedly connected to limit rings (5), the upper surfaces of the limit rings (5) are in contact with the lower end surfaces of the bin door (7), and the left and right ends between the two limit rings (5) are fixedly connected to closing plates (6), which are laterally corresponding to the connection points of the laterally adjacent bin door (7) and the clutch bin (1).

6. The one-way clutch for a seed drill according to claim 1, characterized in that: The front and rear ends of the clutch chamber (1) are fixedly connected to a mounting cylinder (10), the outer surface of the mounting cylinder (10) is provided with an external thread, the middle of the external thread is threadedly connected to a mounting disk (11), and the interior of the mounting disk (11) is provided with evenly distributed mounting holes.

7. The one-way clutch for a seed drill according to claim 1, characterized in that: The rear end of the input shaft (2) is fixedly connected to a sprocket (13), and the front end of the output shaft (3) is fixedly connected to symmetrically distributed ribs (12).

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