Header of combine harvester

Abstract

The utility model discloses a combine harvester header which comprises a header body and a rack, a bottom plate connected with the header body is arranged at the lower end of the rack, and an adjusting mechanism is connected between the header body and the bottom plate. The adjusting mechanism comprises a rotating shaft and first gears fixed to the two ends of the rotating shaft. The rotating shaft is fixedly connected with one end of the header; a gear II meshed with the gear I is arranged at the lower end of the gear I; the lower end of the second gear is connected with a rack meshed with the second gear. A lead screw is arranged in the rack in a sleeved mode. The screw rod is connected with a positive and negative motor; the rack is electrically moved through a forward and reverse motor. Through the transmission mechanism for connecting the gear and the rack on the header, the forward and backward motor drives the rack to move so as to drive the gear to rotate, so that the rotating shaft rotates, the angle of the header is changed, the height of the end part of the header is changed, the device adapts to different working requirements, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of harvesters, in particular to a harvesting platform of a combine harvester. Background Art

[0002] During the harvesting process of crops, a combine harvester is used for harvesting. Current harvesters use a cutting table and a reed roller to cut the stems of crops for subsequent threshing and separation. However, the position and height of the cutting table are fixed and unchanged during this process. The harvester can only cut the stems at one height and cannot adapt to different cutting requirements. Utility Model Content

[0003] The utility model aims to solve the problems in the prior art and provides a harvesting platform for a combine harvester.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A harvesting platform of a combine harvester comprises a harvesting platform and a frame, wherein the harvesting platform is provided with a plurality of cutting teeth, the lower end of the frame is provided with a base plate connected to the harvesting platform, and an adjustment mechanism is connected between the harvesting platform and the base plate; the adjustment mechanism comprises a rotating shaft and a gear 1 fixed at both ends of the rotating shaft; the rotating shaft is fixedly connected to one end of the harvesting platform; a gear 2 meshing with the gear 1 is provided at a lower end of the gear; a rack meshing with the gear 2 is connected at the lower end of the gear 2; a lead screw is provided in the inner sleeve of the rack; a forward and reverse motor is connected to the lead screw; the rack is electrically moved by the forward and reverse motor.

[0006] Preferably, a gear 2 is provided at a lower end of each of the two gears; and a connecting rod is fixedly connected between the two gears 2; and the two gears 2 are driven to rotate in the same direction by the connecting rod.

[0007] Preferably, a connecting rod is provided on one side of the base plate close to the cutting platform; the connecting rod is arranged parallel to the rotating shaft; and a connecting frame is connected between both ends of the connecting rod and the rotating shaft; both ends of the connecting frame are respectively sleeved on the outside of the connecting rod and the rotating shaft; and the connecting frame is fixedly connected to the connecting rod.

[0008] Preferably, a crop separation frame and a movable roller are connected to the frame; the crop separation frame is arranged at the front side of the frame; the movable roller is arranged at the rear end of the crop separation frame; and the rotation direction of the movable roller is the same as the direction of the roller at the lower end of the frame.

[0009] Preferably, a conveying roller is connected to the frame; the conveying roller is arranged on the upper side of the cutting table; and a plurality of cutting blades are provided on the conveying roller.

[0010] Preferably, the frame is also connected to a conveying mechanism; the conveying mechanism is arranged on the rear side of the cutting platform.

[0011] Compared with the prior art, the utility model provides a harvesting platform for a combine harvester, which has the following beneficial effects:

[0012] The harvesting platform of the combine harvester is connected with an adjusting mechanism between the harvesting platform and a frame, and the rotating shaft on the harvesting platform and the connecting rod on the bottom plate are respectively connected through a connecting frame, so that the distance between the harvesting platform and the bottom plate is not changed; at the same time, through a transmission mechanism connecting the gear and the rack on the harvesting platform, the rack is driven to move by a forward and reverse motor to drive the gear to rotate, so that the rotating shaft is rotated, the angle of the harvesting platform is changed, and the height of the end of the harvesting platform is changed, so that the device can adapt to different work requirements and increase work efficiency.

[0013] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 The structural diagram at A in the middle;

[0016] Figure 3 It is a structural schematic diagram of the adjustment mechanism in the utility model.

[0017] In the figure: 1 cutting table, 2 frame, 21 bottom plate, 22 connecting rod, 23 connecting frame, 3 adjusting mechanism, 31 rotating shaft, 32 gear 1, 33 gear 2, 34 rack, 35 screw rod, 36 forward and reverse motor, 37 connecting rod, 4 crop dividing frame, 5 moving roller, 6 conveying roller, 7 conveying mechanism. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0020] Reference Figure 1-3A harvesting platform of a combine harvester, comprising a harvesting platform 1 and a frame 2, wherein the harvesting platform 1 is provided with a plurality of cutting teeth, a bottom plate 21 connected to the harvesting platform 1 is provided at the lower end of the frame 2, and an adjusting mechanism 3 is connected between the harvesting platform 1 and the bottom plate 21; the adjusting mechanism 3 comprises a rotating shaft 31 and a gear 1 32 fixed at both ends of the rotating shaft 31; the rotating shaft 31 is fixedly connected to one end of the harvesting platform 1; a gear 2 33 meshing with the gear 1 32 is provided at the lower end of the gear 1 32; a rack 34 meshing with the gear 2 33 is connected at the lower end of the gear 2 33; a screw rod 35 is provided inside the rack 34; a forward and reverse motor 36 is connected to the screw rod 35; the rack 34 is electrically moved by the forward and reverse motor 36, and the screw rod 35 is rotated by starting the forward and reverse motor 36 to move the rack 34, and the rack 34 drives the upper gear 1 32 and the gear 2 33 to rotate, thereby changing the height of the end of the harvesting platform 1.

[0021] The lower ends of the two gears 1 32 are each provided with a gear 2 33 ; and a connecting rod 37 is fixedly connected between the two gears 2 33 ; the two gears 2 33 are driven to rotate in the same direction through the connecting rod 37 , and the gears at both ends of the connecting rod 37 rotate at the same time to prevent the other end of the cutting platform 1 from tilting.

[0022] A connecting rod 22 is provided on one side of the base plate 21 close to the cutting platform 1; the connecting rod 22 is arranged parallel to the rotating shaft 31; and a connecting frame 23 is connected between both ends of the connecting rod 22 and the rotating shaft 31; the two ends of the connecting frame 23 are respectively sleeved on the outside of the connecting rod 22 and the rotating shaft 31; and the connecting frame 23 is fixedly connected to the connecting rod 22, and when the rotating shaft 31 rotates, it is limited by the connecting frame 23.

[0023] The frame 2 is connected with a grain dividing frame 4 and a moving roller 5; the grain dividing frame 4 is arranged on the front side of the frame 2; the moving roller 5 is arranged at the rear end of the grain dividing frame 4; and the rotation direction of the moving roller 5 is the same as the direction of the roller at the lower end of the frame 2, and the frame 2 is connected with a conveying roller 6; the conveying roller 6 is arranged on the upper side of the cutting table 1; the conveying roller 6 is provided with a plurality of cutting blades; the frame 2 is also connected with a conveying mechanism 7; the conveying mechanism 7 is arranged on the rear side of the cutting table 1; through the cooperation of the grain dividing frame 4 and the moving roller 5, the crops are separated and conveyed to the cutting table 1 for cutting, and then conveyed to the lower end of the conveying mechanism 7 through the conveying roller 6, and then conveyed to the threshing and separation device through the conveying mechanism 7 to complete the harvesting of the crops.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A harvesting platform for a combine harvester, comprising a harvesting platform (1) and a frame (2), wherein the harvesting platform (1) is provided with a plurality of cutting teeth, and a bottom plate (21) connected to the harvesting platform (1) is provided at the lower end of the frame (2), wherein: An adjustment mechanism (3) is connected between the cutting platform (1) and the bottom plate (21); the adjustment mechanism (3) comprises a rotating shaft (31) and a gear one (32) fixed at both ends of the rotating shaft (31); the rotating shaft (31) is fixedly connected to one end of the cutting platform (1); a gear two (33) meshing with the gear one (32) is provided at the lower end of the gear one (32); a rack (34) meshing with the gear two (33) is connected at the lower end of the gear two (33); a screw rod (35) is sleeved inside the rack (34); a forward and reverse motor (36) is connected to the screw rod (35); the rack (34) is electrically moved by the forward and reverse motor (36).

2. A harvesting platform for a combine harvester according to claim 1, characterized in that: The lower ends of the two gears 1 (32) are each provided with a gear 2 (33); and a connecting rod (37) is fixedly connected between the two gears 2 (33); and the two gears 2 (33) are driven to rotate in the same direction through the connecting rod (37).

3. A harvesting platform for a combine harvester according to claim 1, characterized in that: A connecting rod (22) is provided on one side of the bottom plate (21) close to the cutting platform (1); the connecting rod (22) is arranged parallel to the rotating shaft (31); and a connecting frame (23) is connected between both ends of the connecting rod (22) and the rotating shaft (31); both ends of the connecting frame (23) are respectively sleeved on the outside of the connecting rod (22) and the rotating shaft (31); and the connecting frame (23) is fixedly connected to the connecting rod (22).

4. A harvesting platform for a combine harvester according to claim 1, characterized in that: The frame (2) is connected to a crop separation frame (4) and a moving roller (5); the crop separation frame (4) is arranged at the front side of the frame (2); the moving roller (5) is arranged at the rear end of the crop separation frame (4); and the rotation direction of the moving roller (5) is the same as the direction of the roller at the lower end of the frame (2).

5. A harvesting platform for a combine harvester according to claim 1, characterized in that: The frame (2) is connected to a conveying roller (6); the conveying roller (6) is arranged on the upper side of the cutting platform (1); and a plurality of cutting blades are arranged on the conveying roller (6).

6. A harvesting platform for a combine harvester according to claim 1, characterized in that: The frame (2) is also connected to a conveying mechanism (7); the conveying mechanism (7) is arranged on the rear side of the cutting platform (1).

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