Adjustable transmission mechanism for flow guide belt of corn harvester

Abstract

The utility model discloses an adjustable transmission mechanism for a flow guide belt of a corn harvester, which comprises a base, two ends of the top of the base are fixedly connected with a fixing plate, one end of the fixing plate is fixedly provided with a driving motor, and the output end of the driving motor is fixedly connected with a first rotating shaft. The surface of the first rotating shaft is sleeved with a driving gear, one side of the fixing plate is movably connected with a connecting frame, the inner wall of the connecting frame is rotatably connected with a second rotating shaft, the surface of the second rotating shaft is sleeved with a driven gear, and the surface of the first rotating shaft is sleeved with a first connecting plate; through a gear separation reset structure, accurate meshing of gears in the rotating, dumping and resetting process of the collecting box is ensured, the problem of transmission interruption or blockage is avoided, through the design of the adjustable fixing piece, the reset spring is protected, the service life of the reset spring is prolonged, and the reliability and practicability of the whole transmission mechanism are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an adjustable transmission mechanism for a guide belt of a corn harvester. Background Art

[0002] With the continuous advancement of agricultural modernization, corn harvesters, as a highly efficient agricultural machinery, play an increasingly important role in agricultural production. During the harvesting process of traditional corn harvesters, the diversion and transmission efficiency of corn ears directly affects the efficiency and quality of the entire harvesting process.

[0003] At present, since the diversion conveyor belt is set on the collecting box, and the gear driving the diversion conveyor belt is set on the vehicle body, when the collecting box rotates and tilts, the two gears need to be separated, and when the collecting box is reset, the two gears need to be engaged again. If the engagement is not complete, the diversion conveyor belt will fail to convey, and the corn cobs will accumulate and block the conveyor belt.

[0004] In view of this, research and improvement are conducted on the existing problems, and an adjustable transmission mechanism for the guide belt of a corn harvester is provided. By setting a gear separation and reset structure, the transmission efficiency of the guide belt is effectively improved. The purpose is to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an adjustable transmission mechanism for a guide belt of a corn harvester.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an adjustable transmission mechanism for a corn harvester guide belt, comprising a base, two ends of the top of the base are fixedly connected with a fixed plate, one end of the fixed plate is fixedly installed with a driving motor, the output end of the driving motor is fixedly connected with a first rotating shaft, the surface of the first rotating shaft is sleeved with a driving gear, one side of the fixed plate is movably connected with a connecting frame, the inner wall of the connecting frame is rotatably connected with a second rotating shaft, the surface of the second rotating shaft is sleeved with a driven gear, the surface of the first rotating shaft is sleeved with a first connecting plate, a first limiting sliding groove is provided inside the first connecting plate, a fixing block is welded at one end of the first connecting plate, a second connecting plate is welded at one end of the fixing block, a second limiting sliding groove is provided inside the second connecting plate, the bottoms of the first connecting plate and the first limiting sliding groove are both fixedly connected with a vertical plate, the side wall of the vertical plate is fixedly connected with a round rod, one end of the round rod is fixedly connected with a reset spring, one end of the reset spring is fixedly connected with a fixed seat, the surface of the fixed seat is slidably connected with a sliding block, and the bottom inner wall of the connecting frame is rotatably connected with a third rotating shaft.

[0007] As a further description of the above technical solution:

[0008] The output end of the driving motor is rotatably connected to the fixing plate through a bearing, and the fixing plate is symmetrical about the axial center of the base.

[0009] As a further description of the above technical solution:

[0010] The driving gear is meshed and connected with the driven gear, and the driving gear and the driven gear are equal in size.

[0011] As a further description of the above technical solution:

[0012] The first rotating shaft is slidably connected to the first limiting sliding groove, and the second rotating shaft is slidably connected to the second limiting sliding groove.

[0013] As a further description of the above technical solution:

[0014] An adjusting screw hole is provided at one end of the surface of the fixing seat, and the internal thread of the adjusting screw hole is connected to the adjusting screw. A screw hole is provided at the other end of the fixing seat, and the internal thread of the screw hole is connected to the conical screw. The sliding block is located between the adjusting screw and the conical screw.

[0015] As a further description of the above technical solution:

[0016] A fixing head is fixedly connected inside the reset spring, and the fixing head is threadedly connected to the adjusting screw.

[0017] As a further description of the above technical solution:

[0018] The surfaces of the second rotating shaft and the third rotating shaft are sleeved with pulleys, the surfaces of the pulleys are sleeved with conveyor belts, and the bottom of the connecting frame is fixedly connected with a collecting box.

[0019] The utility model has the following beneficial effects:

[0020] In the utility model, the adjustable transmission mechanism for the guide belt of the corn harvester ensures that the driving gear and the driven gear can mesh accurately and quickly during the rotation, dumping and resetting of the collection box by setting a gear separation and reset structure, thereby avoiding the transmission interruption or corn cob blockage of the guide belt due to incomplete gear meshing, and significantly improving the transmission efficiency of the guide belt. When it is necessary to adjust the tightness of the reset spring, the distance between the head of the adjusting screw and the fixed head can be adjusted by adjusting the screw, that is, the adjusting screw is twisted to make the rod body screw into the fixed head, thereby adjusting the distance between the upper end of the reset spring and the fixed seat, so as to adjust the predetermined deformation of the reset spring. When it is necessary to adjust the adjusting screw, the conical screw moves up and down, so that the conical head forces the sliding block to squeeze the head of the adjusting screw, thereby clamping and locking the adjusting screw connected to the reset spring. The reset spring can be better protected by the adjustable fixing part and its service life can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of an adjustable transmission mechanism for a guide belt of a corn harvester proposed by the utility model;

[0022] Figure 2 This is a front view structural schematic diagram of a reset assembly of an adjustable transmission mechanism for a guide belt of a corn harvester proposed by the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a return spring assembly of an adjustable transmission mechanism for a guide belt of a corn harvester proposed by the utility model;

[0024] Figure 4 The utility model is a schematic diagram of the exploded structure of a return spring assembly of an adjustable transmission mechanism for a guide belt of a corn harvester.

[0025] Legend:

[0026] 1. Base; 2. Fixed plate; 3. Driving motor; 4. First rotating shaft; 5. Driving gear; 6. Connecting frame; 7. Second rotating shaft; 8. Driven gear; 9. First connecting plate; 10. First limiting slide; 11. Fixed block; 12. Second connecting plate; 13. Second limiting slide; 14. Vertical plate; 15. Round rod; 16. Return spring; 17. Fixed seat; 18. Adjusting screw hole; 19. Adjusting screw; 20. Screw hole; 21. Conical screw; 22. Sliding block; 23. Fixed head; 24. Third rotating shaft; 25. Pulley; 26. Conveyor belt; 27. Collection box. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] Reference Figure 1-4 , an adjustable transmission mechanism for a corn harvester guide belt, comprising a base 1, a fixing plate 2 is fixedly connected to both ends of the top of the base 1, a driving motor 3 is fixedly installed at one end of the fixing plate 2, a first rotating shaft 4 is fixedly connected to the output end of the driving motor 3, a driving gear 5 is sleeved on the surface of the first rotating shaft 4, a connecting frame 6 is movably connected to one side of the fixing plate 2, a second rotating shaft 7 is rotatably connected to the inner wall of the connecting frame 6, a driven gear 8 is sleeved on the surface of the second rotating shaft 7, a first connecting plate 9 is sleeved on the surface of the first rotating shaft 4, a first limiting A fixing block 11 is welded to one end of the first connecting plate 9, a second connecting plate 12 is welded to one end of the fixing block 11, a second limiting sliding groove 13 is opened inside the second connecting plate 12, the bottoms of the first connecting plate 9 and the first limiting sliding groove 10 are fixedly connected to a vertical plate 14, the side walls of the vertical plate 14 are fixedly connected to a round rod 15, one end of the round rod 15 is fixedly connected to a return spring 16, one end of the return spring 16 is fixedly connected to a fixed seat 17, a sliding block 22 is slidably connected to the surface of the fixed seat 17, and a third rotating shaft 24 is rotatably connected to the bottom inner wall of the connecting frame 6.

[0030] Specifically, the output end of the driving motor 3 is rotationally connected to the fixed plate 2 through a bearing, and the fixed plate 2 is symmetrical about the axial center of the base 1. This structure realizes accurate and smooth rotation transmission between the output shaft of the driving motor 3 and the fixed plate 2. The use of bearings reduces the friction and wear that may be caused by direct connection, thereby improving transmission efficiency and reliability.

[0031] Specifically, the driving gear 5 is meshed with the driven gear 8, and the driving gear 5 and the driven gear 8 are of equal size. This structure helps to achieve uniform torque transmission and reduce additional stress and wear caused by gear mismatch.

[0032] Specifically, the first rotating shaft 4 is slidably connected to the first limiting slide groove 10, and the second rotating shaft 7 is slidably connected to the second limiting slide groove 13. This structure provides flexibility and adjustability of the transmission mechanism, so that the positions of the first rotating shaft 4 and the second rotating shaft 7 can be adjusted according to actual working conditions.

[0033] Specifically, an adjusting screw hole 18 is provided at one end of the surface of the fixing seat 17, and the internal thread of the adjusting screw hole 18 is connected to the adjusting screw 19. A screw hole 20 is provided at the other end of the fixing seat 17, and the internal thread of the screw hole 20 is connected to the conical screw 21. The sliding block 22 is located between the adjusting screw 19 and the conical screw 21. This structure can adjust the distance between the head of the adjusting screw 19 and the fixed head 23 through the adjusting screw 19, that is, the adjusting screw 19 is turned so that the rod body is screwed into the fixed head 23, thereby adjusting the distance between the upper end of the reset spring 16 and the fixing seat 17, thereby adjusting the predetermined deformation amount of the reset spring 16.

[0034] Specifically, the interior of the reset spring 16 is fixedly connected with a fixed head 23, and the fixed head 23 is threadedly connected to the adjusting screw 19. This structure provides a mechanical locking mechanism to ensure that the spring force can stably act on the adjusting screw 19, thereby enhancing the reset ability of the transmission mechanism.

[0035] Specifically, the surfaces of the second rotating shaft 7 and the third rotating shaft 24 are provided with pulleys 25, the surfaces of the pulleys 25 are provided with conveyor belts 26, and the bottom of the connecting frame 6 is fixedly connected with a collecting box 27. This structure realizes efficient and stable force transmission through the cooperation of the pulleys 25 and the conveyor belts 26, ensures the smooth collection and transportation of corn, and improves the collection efficiency.

[0036] Working principle: During use, when it is necessary to convey materials, start the driving motor 3, and the driving motor 3 drives the driving gear 5 on the surface of the first rotating shaft 4 to rotate, thereby driving the rotation of the meshing connected driven gear 8, and then the driven gear 8 drives the third rotating shaft 24 to rotate, and the third rotating shaft 24 drives the conveyor belt 26 to feed materials. When it is necessary to rotate and dump the collection box 27, the driving gear 5 and the driven gear 8 are separated from each other through an external driving device. When the collection box 27 is reset, the driven gear 8 is pulled by the reset spring 16, and the driven gear 8 slides inside the second limiting slide groove 13 to prevent the driving gear 5 and the driven gear 8 from being misaligned. Under the elastic force of the reset spring 16, the driven gear 8 gradually The meshing reset operation is performed at one end close to the driving gear 5. When the tightness of the reset spring 16 needs to be adjusted, the distance between the head of the adjusting screw 19 and the fixed head 23 can be adjusted by adjusting the screw 19, that is, the adjusting screw 19 is twisted to make the rod body screw into the fixed head 23, thereby adjusting the distance between the upper end of the reset spring 16 and the fixed seat 17, so as to adjust the predetermined deformation amount of the reset spring 16. When the adjusting screw 19 needs to be adjusted, the conical screw 21 is moved up and down so that its conical head forces the sliding block 22 to squeeze the head of the adjusting screw 19, thereby clamping and locking the adjusting screw 19 connected to the reset spring 16. The reset spring 16 can be better protected by the adjustable fixing part and its service life can be extended.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable transmission mechanism for a corn harvester guide belt, comprising a base (1), characterized in that: The top ends of the base (1) are fixedly connected to a fixing plate (2), one end of the fixing plate (2) is fixedly mounted with a driving motor (3), the output end of the driving motor (3) is fixedly connected to a first rotating shaft (4), the surface of the first rotating shaft (4) is sleeved with a driving gear (5), one side of the fixing plate (2) is movably connected to a connecting frame (6), the inner wall of the connecting frame (6) is rotatably connected to a second rotating shaft (7), the surface of the second rotating shaft (7) is sleeved with a driven gear (8), the surface of the first rotating shaft (4) is sleeved with a first connecting plate (9), the interior of the first connecting plate (9) is provided with a first limiting sliding groove (10), and the first connecting plate (9) is rotatably connected to a second rotating shaft (7). ) is welded to one end of a fixing block (11), a second connecting plate (12) is welded to one end of the fixing block (11), a second limiting sliding groove (13) is provided inside the second connecting plate (12), the bottoms of the first connecting plate (9) and the first limiting sliding groove (10) are fixedly connected to a vertical plate (14), the side wall of the vertical plate (14) is fixedly connected to a round rod (15), one end of the round rod (15) is fixedly connected to a return spring (16), one end of the return spring (16) is fixedly connected to a fixing seat (17), a sliding block (22) is slidably connected to the surface of the fixing seat (17), and a third rotating shaft (24) is rotatably connected to the inner wall of the bottom of the connecting frame (6).

2. The adjustable transmission mechanism for the guide belt of a corn harvester according to claim 1, characterized in that: The output end of the driving motor (3) is rotatably connected to the fixing plate (2) via a bearing, and the fixing plate (2) is symmetrical about the axial center of the base (1).

3. The adjustable transmission mechanism for the guide belt of a corn harvester according to claim 1, characterized in that: The driving gear (5) is meshingly connected with the driven gear (8), and the driving gear (5) and the driven gear (8) are of equal size.

4. The adjustable transmission mechanism for the guide belt of a corn harvester according to claim 1, characterized in that: The first rotating shaft (4) is slidably connected to the first limiting sliding groove (10), and the second rotating shaft (7) is slidably connected to the second limiting sliding groove (13).

5. The adjustable transmission mechanism for the guide belt of a corn harvester according to claim 1, characterized in that: An adjusting screw hole (18) is provided at one end of the surface of the fixing seat (17), the internal thread of the adjusting screw hole (18) is connected to the adjusting screw (19), and a screw hole (20) is provided at the other end of the fixing seat (17), the internal thread of the screw hole (20) is connected to the conical screw (21), and the sliding block (22) is located between the adjusting screw (19) and the conical screw (21).

6. The adjustable transmission mechanism for the guide belt of a corn harvester according to claim 1, characterized in that: A fixing head (23) is fixedly connected inside the return spring (16), and the fixing head (23) is threadedly connected to the adjusting screw (19).

7. The adjustable transmission mechanism for the guide belt of a corn harvester according to claim 1, characterized in that: The surfaces of the second rotating shaft (7) and the third rotating shaft (24) are sleeved with pulleys (25), the surfaces of the pulleys (25) are sleeved with conveyor belts (26), and the bottom of the connecting frame (6) is fixedly connected with a collecting box (27).

Images