Feeding device of rice and wheat combine harvester

Abstract

The utility model relates to a rice and wheat combine harvester feeding device which comprises a shell with two side plates, an upper feeding roller and a lower feeding roller are arranged between the two side plates, the lower feeding roller is rotationally connected with the two side plates through a lower shaft rod, and the two ends of the lower shaft rod extend out of the two side plates. A frame body is arranged between the two side plates, located at the feeding ends of the two feeding rollers and capable of doing reciprocating motion in the vertical direction. According to the feeding device of the rice and wheat combine harvester, through longitudinal reciprocating motion of the frame body, harvested wheat stalks can be shaken, attachments on the wheat stalks can be thrown off, and a threshing mechanism or a chopping mechanism is prevented from being damaged by the attachments.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a feeding device for a rice and wheat combine harvester. Background Art

[0002] The rice-wheat combine harvester uses a header to cut the rice or wheat stalks close to the roots and then feeds them into the harvester through a feeding device for further processing, such as chopping the wheat stalks after threshing.

[0003] Sometimes there is gravel or pebbles at the roots of wheat straw blades. At the same time, when the cutting table is cutting the wheat straw, it is sometimes unable to completely cut through the wheat straw and instead pulls the straw up with the roots. At this time, the soil attached to the roots of the wheat straw may also contain hard debris. Therefore, these debris will be sent into the threshing or shredding mechanism and damage the blades of the threshing equipment or the shredding equipment. Utility Model Content

[0004] In order to solve the problems existing in the above-mentioned technology, the utility model provides a feeding device for a rice and wheat combine harvester, comprising a shell having two side plates, an upper feeding roller and a lower feeding roller are arranged between the two side plates, the lower feeding roller is rotatably connected to the two side plates through a lower shaft, and both ends of the lower shaft extend out of the outside of the two side plates; a frame is arranged between the two side plates, the frame is located at the feeding end of the two feeding rollers, and the frame can reciprocate in the vertical direction.

[0005] The frame is funnel-shaped with a trapezoidal cross section, and the narrow end opening of the frame faces directly between the two feeding rollers.

[0006] Wherein, both side walls of the frame are provided with horizontally extending outwardly cross bars; vertical strip holes are provided on the side panels, and the cross bars pass through the strip holes; a transmission mechanism is provided at the end of the cross bars, and the transmission mechanism is transmission-connected to the lower shaft.

[0007] In which, the transmission mechanism includes a connecting rod arranged on the outer side of the side plate and a coaxial first shaft rod and a second shaft rod, there is a gap between the first shaft rod and the second shaft rod, a rotating rod is provided at one end of the first shaft rod toward the second shaft rod, and a cam is provided at one end of the second shaft rod toward the first shaft rod; a third shaft rod is provided between the free end of the rotating rod and the narrow end of the cam; one end of the connecting rod is pivotally connected to the third shaft rod, and the other end of the connecting rod is pivotally connected to one end of the cross rod passing through the strip hole; the second shaft rod is driven by the lower shaft rod.

[0008] Wherein, a driving sprocket is provided at the portion of the lower shaft extending out of the side plate; a driven sprocket is provided at the middle portion of the second shaft, and the driving sprocket and the driven sprocket are connected by a chain.

[0009] Wherein, a strip-shaped fixing plate is fixedly mounted on the outer side of the side plate; and one end of the second shaft away from the cam is rotatably connected to the fixing plate.

[0010] The beneficial effects of the utility model are as follows: the feeding device of the rice and wheat combine harvester provided by the utility model can shake the harvested wheat straws and throw off the attachments on the wheat straws through the longitudinal reciprocating motion of the frame, thereby preventing the attachments from damaging the threshing mechanism or the chopping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1 It is the main view of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 It is a cross-sectional view of the present utility model.

[0015] Description of Reference Numerals

[0016] 1. Side plate, 11. Upper feed roller, 12. Lower feed roller, 121. Lower shaft, 122. Drive gear, 13. Strip hole, 2. Frame, 21. Cross bar, 3. First shaft, 31. Rotating rod, 4. Second shaft, 41. Driven sprocket, 42. Cam, 5. Third shaft, 6. Connecting rod, 7. Fixed plate, 8. Straw. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figure 1 、 Figure 2 As shown in the figure, a feeding device for a rice and wheat combine harvester provided in an embodiment includes a housing (not shown) having two side panels 1. An upper feeding roller 11 and a lower feeding roller 12 are arranged between the two side panels 1. The lower feeding roller 12 is rotatably connected to the two side panels 11 via a lower shaft 121. The upper feeding roller 12 is similarly connected. After the wheat straw harvested by the harvesting platform is fed into the two feeding rollers, it is fed into the threshing mechanism and chopping mechanism at the rear through the rotation of the feeding rollers. The above is the basic structure and working principle of the feeding device for a rice and wheat combine harvester in the prior art.

[0019] The difference between the present invention and the prior art is that both ends of the lower shaft 121 extend outside the two side plates 1, and both ends of the lower shaft 121 are provided with a driving sprocket 122;

[0020] A frame 2 is provided between the two side plates 1. The frame 2 is located at the feeding end of the two feeding rollers and can reciprocate in the vertical direction.

[0021] Specifically, the frame 2 is funnel-shaped with a trapezoidal cross section, and the narrow end opening of the frame 2 faces directly between the two feeding rollers; this structure has a certain guiding effect on the wheat straw fed into the header;

[0022] Both side walls of the frame 1 are provided with horizontal bars 21 extending outwards; vertical strip holes 13 are provided on the side panels 1, and the horizontal bars 21 pass through the strip holes 13;

[0023] A transmission mechanism is provided at the end of the crossbar 21 , and the transmission mechanism is in transmission connection with the lower shaft 121 .

[0024] Specifically, the transmission mechanism includes a connecting rod 6 provided on the outside of the side plate 1 and a coaxial first shaft 3 and a second shaft 4. There is a gap between the first shaft 3 and the second shaft 4. A rotating rod 31 is provided on one end of the first shaft 3 facing the second shaft 4. A cam 42 is provided on one end of the second shaft 4 facing the first shaft 3.

[0025] A third shaft 5 is provided between the free end of the rotating rod 31 and the narrow end of the cam 42;

[0026] One end of the connecting rod 6 is pivotally connected to the third shaft 5, and the other end of the connecting rod 6 is pivotally connected to one end of the cross bar passing through the strip hole 13;

[0027] At the same time, a strip-shaped fixing plate 7 is fixedly mounted on the outer side of the side plate 1 , and one end of the second shaft 4 away from the cam 42 is rotatably connected to the fixing plate 7 .

[0028] The cam 42 and the rotating rod 5 rotate synchronously, so that the third shaft rod 5 moves, thereby driving the top end of the connecting rod 6 to perform longitudinal reciprocating motion, thereby realizing the longitudinal reciprocating motion of the frame 2.

[0029] The second shaft 4 is connected to the driving sprocket 122 through a chain via a driven sprocket 41 provided in the middle thereof, so that the lower feeding roller 12 drives the second shaft 4 to rotate when it rotates.

[0030] When the utility model is in use, Figure 3 As shown, during the feeding process of the wheat straw 8, the frame 2 moves up and down, so that the wheat straw 8 is beaten and swung up and down at the front end of the two feeding rollers, thereby throwing off the attachments on the wheat straw 8 to prevent the attachments from damaging the threshing mechanism and the chopping mechanism.

[0031] Preferably, the cross bar 21 has a rectangular section (not shown), which is a rod-shaped section with a rectangular cross-section. The rectangular section is located in the strip hole 13, and the two opposite surfaces of the rectangular section are adjacent to the two vertical inner walls of the strip hole 13 to guide the cross bar 21 and prevent the frame 2 from rotating during movement.

[0032] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. 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.

Claims

1. A feeding device for a rice and wheat combine harvester, comprising a housing having two side plates, an upper feeding roller and a lower feeding roller being arranged between the two side plates, the lower feeding roller being rotatably connected to the two side plates via a lower shaft, characterized in that: Both ends of the lower shaft extend outside the two side panels; A frame is provided between the two side plates. The frame is located at the feeding ends of the two feeding rollers. The frame can reciprocate in the vertical direction.

2. A rice and wheat combine harvester feeding device according to claim 1, characterized in that: The frame is funnel-shaped with a trapezoidal cross section, and the narrow end opening of the frame faces directly between the two feeding rollers.

3. A rice and wheat combine harvester feeding device according to claim 1 or 2, characterized in that: Both side walls of the frame are provided with horizontal bars extending outwards; The side plate is provided with a vertical strip hole, and the cross bar passes through the strip hole; A transmission mechanism is provided at the end of the cross bar, and the transmission mechanism is in transmission connection with the lower shaft rod.

4. A rice and wheat combine harvester feeding device according to claim 3, characterized in that: The transmission mechanism includes a connecting rod provided on the outer side of the side plate and a coaxial first shaft and a second shaft, wherein a gap is provided between the first shaft and the second shaft, a rotating rod is provided at one end of the first shaft facing the second shaft, and a cam is provided at one end of the second shaft facing the first shaft; A third shaft is provided between the free end of the rotating rod and the narrow end of the cam; One end of the connecting rod is pivotally connected to the third shaft rod, and the other end of the connecting rod is pivotally connected to an end of the cross bar passing through the strip-shaped hole; The second shaft is driven by the lower shaft.

5. A rice and wheat combine harvester feeding device according to claim 4, characterized in that: The portion of the lower shaft extending out of the side plate is provided with a drive sprocket; A driven sprocket is provided at the middle portion of the second shaft, and the driving sprocket and the driven sprocket are connected by a chain.

6. A feeding device for a rice and wheat combine harvester according to claim 5, characterized in that: A strip-shaped fixing plate is fixedly mounted on the outer side of the side plate; One end of the second shaft away from the cam is rotatably connected to the fixing plate.

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