Harvester gap bridge and harvester

Abstract

The harvester gap bridge comprises a gap bridge body, a rotating shaft, a first panel and an oil cylinder, the advancing direction of the harvester serves as the front, the gap bridge body is connected with a header feeding opening, and the gap bridge body is used for feeding crops harvested by a header into a rear harvester body; the rotating shaft is welded to the front portion of the gap bridge body and located above the feeding opening, and the rotating shaft is connected with the first panel. The first panel is hung on the rotating shaft and swings around the rotating shaft; the oil cylinder is vertically arranged on one side of the gap bridge body, and the telescopic end of the oil cylinder is connected with the first panel; the oil cylinder stretches out and draws back to drive the first panel to swing left and right with the rotating shaft as the center, and the header connected with the first panel swings along with the first panel to change the operation angle. The harvester gap bridge and the harvester header provided by the utility model can adapt to terrain changes of the harvester, and improve the operation efficiency and harvesting operation quality of the harvester.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery manufacturing, and in particular to a harvester bridge and a harvester. Background Technology

[0002] In existing crop harvesting scenarios, uneven fields are common, especially when harvesting low-growing crops. The header cannot gather crops on uneven ground, resulting in missed harvests. Therefore, the harvesting angle of the harvester's header often needs to be adjusted adaptively during harvesting. Current technology typically uses a contour-following device between the harvester's header and the harvester bridge to adjust the header angle according to the slope of the field. Traditional contour-following devices adjust the height of the harvester's header but neglect the horizontal angle adjustment. If the harvester is harvesting on a field with one side higher than the other, the harvesting effect will still be significantly reduced. Therefore, there is an urgent need for a harvester bridge that can adapt to field undulations and adjust the header dynamically to achieve efficient operation. Utility Model Content

[0003] The purpose of this utility model is to provide a harvester bridge and a harvester to solve the problem of poor harvesting effect caused by undulating fields and uneven plots during the operation of existing harvesters.

[0004] According to one aspect of this utility model, a harvester bridge is provided, comprising: a bridge body, a rotating shaft, a first panel, and a hydraulic cylinder; with the harvester's forward direction as the front, the bridge body is connected to the feed port of the header, and the bridge body is used to feed the crop harvested by the header into the harvester body behind; the rotating shaft is welded to the front of the bridge body and located above the feed port; the rotating shaft is connected to the first panel; the first panel is hung on the rotating shaft and swings around the rotating shaft; the hydraulic cylinder is vertically disposed on one side of the bridge body, and the telescopic end of the hydraulic cylinder is connected to the first panel; the extension and retraction of the hydraulic cylinder drives the first panel to swing left and right around the rotating shaft; the header connected to the first panel follows the swing of the first panel to change its working angle.

[0005] The first panel is driven by a hydraulic cylinder to float horizontally. The cutting table, which is attached to the first panel, will adapt to the undulations of the ground when the harvester is harvesting uneven land. This will cause the harvester's cutting table to float left and right, thereby improving the harvesting efficiency and quality on uneven land.

[0006] Furthermore, the bridge body includes a second panel, the rotating shaft is welded to the second panel and the second panel is connected to the first panel; the hydraulic cylinder is disposed on one side of the second panel and located on the back of the second panel.

[0007] Furthermore, a first limiting groove and a second limiting groove are respectively provided on the left and right sides of the second panel; the first limiting groove and the second limiting groove are connected to the first panel by bolts; the bolts slide along the setting direction of the first limiting groove and the second limiting groove to limit the swing position of the first panel.

[0008] By setting the first limiting groove and the second limiting groove, the swing angle of the first panel is limited, thereby limiting the floating angle of the harvester header. The first mounting beam and the second mounting beam are set on the first panel to improve the strength of the first panel hanging the header, thereby improving the stability of the harvester header connection and the reliability of the product.

[0009] Furthermore, a first mounting beam is provided at the upper end of the first panel; a left fixing ear and a right fixing ear are respectively provided at both ends of the first mounting beam, and the left fixing ear and the right fixing ear are used to connect the extension end of the hydraulic cylinder; a second mounting beam is provided at the lower part of the first panel, and a left connecting hole and a right connecting hole are respectively provided at both ends of the second mounting beam, and the left connecting hole and the right connecting hole are used to connect the cutting table.

[0010] Furthermore, the hydraulic cylinder is a double-acting hydraulic cylinder, and the hydraulic cylinder is disposed on either side of the second panel; the second panel includes a mounting base for fixing the hydraulic cylinder; mounting holes are respectively provided at both ends of the second panel, and the telescopic end of the hydraulic cylinder extends out of the mounting hole and connects with the corresponding fixing lug on the first panel.

[0011] The double-acting hydraulic cylinder has two working modes: extension and retraction. Therefore, only one end of the second panel needs to be equipped with a double-acting hydraulic cylinder. The cylinder on one side switches the floating angle of the first panel by extending and retracting.

[0012] Furthermore, a first pad is provided between the first limiting groove and the first panel; a second pad is provided between the second limiting groove and the first panel.

[0013] Furthermore, a rotating sleeve is provided at the center of the first mounting beam of the first panel, and the rotating sleeve is connected to the rotating shaft.

[0014] Furthermore, guide plates are respectively provided on the left and right sides of the feeding port.

[0015] Furthermore, the first limiting groove and the second limiting groove are respectively inclined relative to the horizontal direction.

[0016] This utility model also provides a harvester, including any of the harvester bridges described above.

[0017] The harvester provided by this utility model has a contour-following function, which can achieve uniform harvesting of crops in uneven fields by adjusting the working angle of the header in real time. This can significantly improve the working quality and harvesting efficiency of the harvester. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 This utility model provides a schematic diagram of the connection between the harvester's cutting platform and the bridge.

[0020] Figure 2 A schematic diagram of a harvester bridge provided by this utility model Figure 1 .

[0021] Figure 3 A schematic diagram of a harvester bridge provided by this utility model Figure 2 .

[0022] Figure 4 This is a schematic diagram of a harvester bridge body provided by this utility model.

[0023] Figure 5 A schematic diagram of a harvester contouring device provided by this utility model.

[0024] Figure 6 The present invention provides a harvester contouring device. Figure 1 .

[0025] Figure 7 The present invention provides a harvester contouring device. Figure 2 .

[0026] Explanation of icon numbers:

[0027] 100-Cutting platform; 2-Harvester bridge; 21-Bridge body; 211-Second panel; 2111-First limiting groove; 2112-Second limiting groove; 2113-Bolt; 2114-Mounting base; 2115-Mounting hole; 2116-First pad; 2116-Second pad; 22-Contouring device; 221-First panel; 2211-First mounting beam; 2212-Left fixing ear; 2212a-Hanging groove; 2212b-Connecting part; 2212-Right fixing ear; 2213-Second mounting beam; 2214-Left connecting hole; 2214-Right connecting hole; 2215-Feeding port; 2216-Guide plate; 222-Hydraulic cylinder; 2221-Telescopic end; 223-Rotating shaft; 224-Rotating sleeve. Detailed Implementation

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0030] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0031] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0034] See Figures 1 to 7As shown in the figure, this utility model provides a harvester including a cutting platform for harvesting crops and a harvester bridge for conveying crops. The cutting platform is located in front of and connected to the harvester bridge. During harvesting, the cutting platform collects the crops, cuts the stalks, and then conveys them to the rear of the harvester via the harvester bridge. The harvester bridge includes a bridge body 21, which is used to feed the harvested crops from the cutting platform into the rear of the harvester for processing. Because the land is uneven in some areas during harvesting, the harvester needs to have a contour-following function to adapt to changes in the harvesting terrain. In this embodiment, the harvester's contouring function is achieved through contouring devices 22, including a first panel 221, a hydraulic cylinder 222, and a rotating shaft 223. The contouring device 22 connects the header and the bridge body 21. Typically, in the harvester's forward direction, the contouring device 22 connects the header and the bridge body 21, and is usually positioned between the header and the bridge body 21. By adapting to the undulations of the working field, the contouring device 22 floats left and right, thereby adjusting the horizontal working angle of the header during harvesting and improving the harvesting quality. The first panel 221 is located in front of the bridge body 21 and connected to the header. The header is attached to the first panel 221 and changes state according to the first panel 221. As a device for driving the first panel 221 to float, the hydraulic cylinder 222 extends and retracts, driving the first panel 221 to float horizontally. In this embodiment, the hydraulic cylinder 222 is vertically arranged on one side of the bridge body 21, and the telescopic end 2221 of the hydraulic cylinder 222 is connected to the first panel 221; the rotating shaft 223 is welded to the bridge body 21 and is located above the center of the feeding port of the bridge body 21; the first panel 221 is hung on the rotating shaft 223 and rotates around the rotating shaft 223; when the hydraulic cylinder 222 extends and retracts, it drives the first panel 221 to swing left and right around the rotating shaft 223, and the cutting table connected to the first panel 221 changes the harvesting angle as the first panel 221 swings.

[0035] In this embodiment, during harvester operation, the header adaptively adjusts its harvesting angle according to the undulations of the land. The hydraulic cylinder 222 extends and retracts, driving the first panel 221 to swing horizontally to adapt to changes in the harvesting terrain. Consequently, the header, attached to the first panel 221, swings with the terrain changes. By following the left-right movement of the first panel 221, the harvester header changes its operating angle. When dealing with uneven land or the edges of land, the header can promptly adapt to changes in the ground level, thereby changing its operating state and improving the harvester's operating quality and efficiency.

[0036] To improve the harvester's effectiveness and reliability in harvesting edge or uneven terrain, the bridge body 21 is equipped with a second panel 211. The second panel 211 is fixed to the front end of the bridge body 21 and connected to the first panel 221. A hydraulic cylinder 222 is installed on one side of the second panel 211, with its telescopic end 2221 connected to the first panel 221. The cylinder 222 drives the first panel 221 to swing left and right through its extension and retraction. Because the second panel 211 is fixed to the front end of the bridge body 21, the first panel 221 swings horizontally relative to the second panel 211. By fixing the second panel 211 to the bridge body 21, the connection between the first panel 221 and the bridge body 21 is more robust, resulting in better swing operation and higher reliability of the first panel 221. It should be noted that the hydraulic cylinder 222 can be installed on either side of the second panel 211. Furthermore, hydraulic cylinders 222 can be installed on both sides of the second panel 211, or only on one side of the second panel 211, to adjust the working angle of the first panel 221. When a hydraulic cylinder 222 is installed on one side of the second panel 211, the tilt angle of one side of the first panel 221 is adjusted by extending and retracting the telescopic end 2221 of the hydraulic cylinder 222. When hydraulic cylinders 222 are installed at both ends of the second panel 211, the hydraulic cylinder 222 on one side of the second panel 211 extends, while the hydraulic cylinder 222 on the other side remains in the same position or retracts, thereby achieving the purpose of lifting the first panel 221 on one side.

[0037] In an optional embodiment, a first limiting groove 2111 and a second limiting groove 2112 are respectively provided on the left and right sides of the second panel 211. The first limiting groove 2111 is located at the left end of the second panel 211, and the second limiting groove 2112 is located at the right end of the second panel 211. The first limiting groove 2111 and the second limiting groove 2112 are connected to the first panel 221 by bolts 2113. The bolts 2113 slide along the setting direction of the first limiting groove 2111 and the second limiting groove 2112 to limit the swing amplitude of the first panel 221. See also... Figure 7In the forward direction of the harvester, if the right end of the harvester's header is raised, and the height of the right end of the first panel 221 is higher than the height of the left end of the first panel 221, the bolts 2113 on the second limiting groove 2112, which connect the second panel 211 and the first panel 221, slide to the bottom of the second limiting groove 2112 for limiting, so as to avoid excessive swing amplitude of the first panel 221, which would affect operational safety and efficiency. A first mounting beam 2211 is provided on the first panel 221, located at the upper end of the first panel 221, which strengthens the structure of the first panel 221. The left and right fixing ears 2212, located at both ends of the first mounting beam 2211, serve two purposes: first, to connect the telescopic end 2221 of the hydraulic cylinder 222; and second, to attach the header. The left and right fixed ears 2212 are respectively provided with a hanging groove 2212a and a connecting part 2212b. The connecting part 2212b is used to connect the hydraulic cylinder 222, and the hanging groove 2212a is used to hang the cutting table to increase the reliability of the cutting table hanging. A second mounting beam 2213 is provided at the lower part of the first panel 221. The second mounting beam 2213 also strengthens the structure of the first panel 221. The two ends of the second mounting beam 2213 are provided with a left connecting hole 2214 and a right connecting hole 2214. The cutting table is connected to the left connecting hole 2214 and the right connecting hole 2214, so that the cutting table is stably hung on the first panel 221, and the reliability of the cutting table hanging is improved. With the first limiting groove 2111 and the second limiting groove 2112 provided, the swing angle of the first panel 221 is limited by the size of the opening of the first limiting groove 2111 and the second limiting groove 2112 and the tilt angle of the first limiting groove 2111 and the second limiting groove 2112 relative to the horizontal direction. The floating angle of the cutting table hanging on the first panel 221 is thus limited. The first mounting beam 2211 and the second mounting beam 2213 increase the structural strength of the first panel 221, making the cutting table hanging more secure. Therefore, the stability of the cutting table connection and the reliability of the product are guaranteed and improved.

[0038] In this embodiment, see Figures 5-7 The first limiting groove 2111 and the second limiting groove 2112 are inclined relative to the horizontal direction. During the process of limiting the swing position of the first panel 221 by the first limiting groove 2111 and the second limiting groove 2112, the maximum rotation angle of the first panel 221 relative to the second panel 211 in the horizontal direction is 5 degrees. That is, the maximum angle of the cutting table to the left is 5 degrees and the maximum angle to the right is 5 degrees. By setting the floating angle, the effect of the harvester in harvesting uneven plots is improved.

[0039] In the embodiments provided by this utility model, the hydraulic cylinder 222 used to drive the first panel 221 to swing is usually vertically arranged at one end of the second panel 211. One end of the hydraulic cylinder 222 is connected to a fixing lug on the first panel 221. Taking the hydraulic cylinder 222 located at the right end of the second panel 211 as an example, one end of the hydraulic cylinder 222 is connected to the right fixing lug 2212. When the hydraulic cylinder 222 extends, the first panel 221 on the side of the right fixing lug 2212 is lifted upward and swings around the rotation axis 223. At this time, the cutting table connected to the first panel 221 floats to the right. However, since the ordinary hydraulic cylinder 222 can only extend and cannot retract, a hydraulic cylinder 222 is also arranged at the left end of the second panel 211 to drive the first panel 221 to swing in the left direction. By setting the hydraulic cylinders 222 at the left and right ends, the left and right sides of the cutting table can float, realizing harvesting on uneven ground. In a preferred embodiment, the hydraulic cylinder 222 is a double-acting hydraulic cylinder 222. The advantage of using a double-acting hydraulic cylinder 222 is that it has both extension and retraction functions. For example, when the hydraulic cylinder 222 is located at the right end of the second panel 211, when the extension end 2221 of the hydraulic cylinder 222 extends upward, it drives the right end of the first panel 221 to lift upward, thereby causing the right end of the harvester's header to float upward; when the extension end 2221 of the hydraulic cylinder 222 retracts downward, it drives the left end of the first panel 221 to lift upward, thereby causing the left end of the harvester's header to float upward. Therefore, using a double-acting hydraulic cylinder 222 can reduce the production cost of the harvester. A mounting base 2114 is provided on the second panel 211 for fixing the hydraulic cylinder 222. Mounting holes 2115 are provided on the top of the second panel 211 at the symmetrical position of the left fixing ear 2212 and the right fixing ear 2212. The mounting holes 2115 are located on the top of the second panel 211. The hydraulic cylinder 222 extends out of the mounting holes 2115 and connects with the corresponding fixing ear on the first panel 221 to realize the lifting control of the first panel 221.

[0040] Because friction exists between the second panel 211 and the first panel 221 during the floating process of the harvester header, which affects the service life of the first panel 221 and the second panel 211, a pad is set between the second panel 211 and the first panel 221 to prevent the second panel 211 from rubbing against the first panel 221 and causing deformation of the second panel 211 or the first panel 221. Specifically, a first pad 2116 is provided between the first limiting groove 2111 and the first panel 221, and a second pad 2116 is provided at the connection between the second limiting groove 2112 and the first panel 221. The reason for providing the first pad 2116 and the second pad 2116 here is that the first limiting groove 2111 and the second limiting groove 2112 are used to limit the floating angle of the cutting table. The first limiting groove 2111 and the second limiting groove 2112 are connected to the first panel 221 by bolts 2113. The connection between the first limiting groove 2111 and the first panel 221 and the connection between the second limiting groove 2112 and the first panel 221 usually have a large degree of wear. After wear, the reliability of the bolt 2113 connection is reduced. Therefore, the first pad 2116 and the second pad 2116 are provided here to reduce the wear between the second panel 211 and the first panel 221 and improve the stability and safety of the cutting table. Preferably, the first pad 2116 and the second pad 2116 are made of rubber. During the connection between the second panel 211 and the first panel 221, the second panel 211 and the first panel 221 are protected from wear and tear, while the second panel 211 and the first panel 221 are also provided with shock absorption.

[0041] See Figure 4 , Figure 5 A rotating shaft 223 is mounted on the second panel 211, and a rotating sleeve 224 is disposed in the center of the first panel 221. The rotating sleeve 224 is sleeved with the rotating shaft 223, and the first panel 221 rotates around the rotating shaft 223 as the center of rotation. Since the rotating sleeve 224 bears not only the weight of the second panel 211 but also the weight of the cutting table, the method of fixing the rotating shaft 223 is crucial. Optionally, in this embodiment, the rotating shaft 223 is fixed to the second panel 211 by welding, and then, through the cutting table auxiliary connection device, it supports the first panel 221 and the cutting table when the cutting table is attached to the first panel 221.

[0042] The feeding port 2215 on the first panel 221 is located at the connection between the header and the bridge, and is used to transport the straw cut by the header. The feeding port 2215 is located behind the header auger and is connected to the feeding port 2115 of the bridge body 21. After the header auger pushes the harvested crop backward, it is transferred to the header feeding port 2215, and then enters the bridge from the feeding port 2215 of the bridge body, where it is transferred by the chain rake inside the bridge. In one embodiment of this utility model, guide plates 2216 are respectively provided on the left and right sides of the feeding port 2215 to guide the straw flow and feed it smoothly into the harvester bridge, and then transfer it to the rear harvester body.

[0043] The harvester provided by this utility model can achieve uniform harvesting of crops in uneven fields by adjusting the working angle of the header in real time, which can significantly improve the working quality and increase the harvesting efficiency of the harvester.

[0044] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A harvester bridge, characterized in that, The utility model relates to a kind of harvesting machine overbridge, comprising: Bridge body, to the harvesting machine advancing direction as front, the bridge body connects header feeding port, the bridge body is used to feed the crop harvested by header to rear harvesting machine body; Rotary shaft, the rotary shaft is welded in the front of the bridge body and is located above the feeding port;First panel, the rotary shaft connects the first panel, the first panel is hung on the rotary shaft and swings around the rotary shaft; Oil cylinder, the oil cylinder is vertically arranged in one side of the bridge body, and the telescopic end of the oil cylinder is connected with the first panel; The oil cylinder telescopes, drives the first panel to swing around the rotary shaft;Header connected with the first panel follows the first panel and swings to change working angle.

2. A harvester bridge as claimed in claim 1 wherein, The bridge body includes second panel, the rotary shaft is welded on the second panel and the second panel is connected with the first panel;The oil cylinder is arranged in one side of the second panel and located at the back of the second panel.

3. A harvester bridge as claimed in claim 2, wherein, First limiting slot and second limiting slot are respectively arranged on the left and right sides of the second panel;The first limiting slot and the second limiting slot are connected with the first panel by bolts;The bolt slides along the arrangement direction of the first limiting slot and the second limiting slot to limit the swing position of the first panel.

4. A harvester bridge as claimed in claim 3 wherein, First mounting beam is arranged on the upper end of the first panel;Left fixed lug and right fixed lug are respectively arranged on both ends of the first mounting beam, and the left fixed lug and the right fixed lug are used to connect the telescopic end of the oil cylinder;Second mounting beam is arranged on the lower part of the first panel, and left connecting hole and right connecting hole are respectively arranged on both ends of the second mounting beam, and the left connecting hole and the right connecting hole are used to connect header.

5. A harvester bridge as claimed in claim 4 wherein, The oil cylinder is a double-acting oil cylinder, and the oil cylinder is arranged on any one side of the second panel;The second panel includes a mounting seat for fixing the oil cylinder;Mounting holes are respectively arranged on both ends of the second panel, and the telescopic end of the oil cylinder protrudes out of the mounting hole and is connected with the corresponding fixed lug on the first panel.

6. A harvester bridge as claimed in claim 5 wherein, First gasket plate is arranged between the first limiting slot and the first panel;Second gasket plate is arranged between the second limiting slot and the first panel.

7. A harvester bridge as claimed in claim 6 wherein, Rotary sleeve is arranged in the center of the first mounting beam of the first panel, and the rotary sleeve is connected with the rotary shaft.

8. A harvester bridge as claimed in claim 7, wherein, Grass guide plates are respectively arranged on the left and right sides of the feeding port.

9. A harvester bridge as claimed in claim 8 wherein, The first limiting slot and the second limiting slot are respectively arranged inclinedly relative to horizontal direction.

10. A harvester characterized by The utility model relates to a kind of harvesting machine overbridge, comprising: As claimed in any one of claims 1-9.

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