An elevator and harvester

Abstract

The utility model provides a kind of elevator and harvester, comprising: elevator shell, first fan, second fan, secondary stem pulling assembly, third fan, first fan, second fan are sequentially arranged in the upper surface of the elevator shell;Secondary stem pulling assembly is located above second fan, third fan shaft of third fan is along the width direction of elevator shell and horizontally arranged;First fan's first impurity discharge port, second fan's second impurity discharge port and third fan's third impurity discharge port are arranged on the same side of harvester, when cluster is lifted, first impurity discharge port and second impurity discharge port are used to preliminarily remove impurities, after secondary stem pulling assembly is used to strip straw again, third impurity discharge port removes straw stripped again.The utility model provides a kind of elevator and harvester, compact structure, can release the space below elevator, optimize the overall space layout of harvester, improve the cluster box storage capacity of harvester, reduce the unloading frequency of harvester warehouse full.

Description

Technical Field

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

[0002] In existing combine harvester elevators, when using a plate header for corn harvesting, multiple fans are required for straw removal. A common configuration involves a suction fan at the top of the elevator housing and a blower at the bottom, combining suction and blowing for straw removal. When using a combination of suction and blower, the suction fan is typically positioned above the elevator housing, and the blower below. However, with the increasing size and intelligence of combine harvesters, the feeding capacity has significantly increased. Due to the enlarged elevator channel, the existing "top suction, bottom blower" design results in the elevator housing occupying a considerable amount of space longitudinally within the harvester. This affects the arrangement of components during the post-ear handling process and the grain storage capacity, leading to a higher frequency of full-load unloading and hindering harvesting efficiency. Therefore, it is necessary to provide a new elevator and harvester to overcome these shortcomings. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting device and a harvester that adopts a suction mode, which can rationally plan the structural layout of the harvester, improve space utilization, and thus increase the storage space of the harvester's grain bin.

[0004] According to one aspect of the present invention, a lifting device is provided, obliquely upwardly arranged along the body of a harvester, comprising: a lifting device housing, a first fan, a second fan, a secondary stalk pulling assembly, and a third fan. The lifting device housing includes a lifting port disposed on its upper surface; the first fan is disposed on the upper surface of the lifting device housing, located above the lifting port, and communicates with the lifting device housing; the first fan includes a first fan shaft arranged perpendicular to the inclined direction of the lifting device, and the first fan includes a first discharge port; the second fan is disposed on the upper surface of the lifting device housing, located above the first fan, and communicates with the lifting device housing; the second fan includes a fan shaft arranged parallel to the first fan shaft. The second fan shaft includes a second discharge port; the secondary stalk pulling assembly is arranged along the width direction of the elevator housing and located above the second fan, for the second stripping of the ear stalks; the third fan includes a third fan shaft, which is arranged horizontally along the width direction of the elevator housing, and is connected to the secondary stalk pulling assembly and communicates with the elevator housing, and includes a third discharge port; the first discharge port, the second discharge port, and the third discharge port are arranged on the same side of the harvester, and when the ear is being transported, the first discharge port and the second discharge port are used for preliminary removal of debris, and after the secondary stalk pulling assembly strips the stalks a second time, the third discharge port discharges the second stripped stalks.

[0005] Along the direction of the elevator, two sets of suction fans are installed above the elevator housing. The shafts of the first and second fans are perpendicular to the tilt direction of the elevator. While ensuring the elevator's impurity removal effect, the space below the elevator is freed up. At the same time, a secondary pull stem assembly and a third fan are installed, which further improves the elevator's impurity removal effect.

[0006] Preferably, the elevator housing further includes a first fan mounting base and a second fan mounting base, which are respectively arranged sequentially on the upper surface of the elevator housing for mounting the first fan and the second fan.

[0007] Preferably, the first fan mounting base includes a first mounting plate and a second mounting plate symmetrically arranged on both sides of the elevator housing. The first mounting plate and the second mounting plate are each provided with a first air inlet for adjusting the air intake. The two ends of the first mounting plate and the second mounting plate are connected by a first protective plate and a second protective plate, respectively.

[0008] Preferably, the first fan mounting base further includes a cover plate, which is placed above the first mounting plate, the second mounting plate, the first protective plate, and the second protective plate and is closedly connected; the first protective plate is provided with a second air regulating port and an air regulating plate, and the air intake volume of the first fan is adjusted by adjusting the size of the second air regulating port through the air regulating plate.

[0009] Preferably, the secondary stem pulling assembly includes an upper secondary stem pulling roller, a lower secondary stem pulling roller, and a secondary stem pulling shell. The secondary stem pulling shell extends along the direction of the elevator shell. The lower secondary stem pulling roller is a fixed roller, and the upper secondary stem pulling roller is a floating roller.

[0010] Preferably, the third fan includes a third fan housing that communicates with the secondary pull stem housing, and the upper cover plate of the third fan housing is provided with a third fan maintenance port.

[0011] Preferably, the secondary stem-pulling roller housing is provided with a stem-pulling roller maintenance cover.

[0012] Preferably, the first fan includes a first fan exhaust duct, the second fan includes a second fan exhaust duct, and the length of the first fan exhaust duct is longer than the length of the second fan exhaust duct.

[0013] Preferably, the first fan shaft and the second fan shaft are positioned above the lifting chain rake, and the first fan shaft and the second fan shaft are respectively provided with shredding blades that rotate synchronously with the first fan shaft and the second fan shaft.

[0014] The elevator provided in the implementation method improves the operation mode of the fan and fully utilizes the suction fan to remove impurities from the ears of fruit inside the elevator. Both the first fan and the second fan are located on the upper part of the elevator shell. In addition to improving the impurity removal efficiency, it can increase the storage space below the elevator body and effectively improve the overall space utilization of the harvester.

[0015] The embodiments also provide a harvester including a lift as described in any of the above.

[0016] The harvester provided by this utility model improves the quality and cleanliness of ear harvesting by improving the setting position of the fan in the elevator and the impurity removal mode of the fan. At the same time, the spatial layout of the harvester is more reasonable, which can effectively increase the storage space of the ear box and reduce the frequency of full unloading, thereby improving the operating efficiency of the harvester. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0018] Figure 1 A schematic diagram of the assembly of a harvester's elevator provided for an embodiment of this utility model. Figure 1 .

[0019] Figure 2 A schematic diagram of the assembly of a harvester's elevator provided for an embodiment of this utility model. Figure 2 .

[0020] Figure 3 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 1 .

[0021] Figure 4 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 2 .

[0022] Figure 5 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 3 .

[0023] Figure 6 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 4 .

[0024] Figure 7 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 5 .

[0025] Figure 8 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 6 .

[0026] Figure 9 A schematic diagram of a lifting device structure provided for an embodiment of this utility model. Figure 7 .

[0027] Explanation of icon numbers: 100-Elevator; 1-Elevator housing; 10-Elevator port; 11-First fan mounting base; 111-First mounting plate; 111a-First air regulating port; 112-Second mounting plate; 113-First protective plate; 113a-Second air regulating port; 113b-Air regulating plate; 114-Second protective plate; 115-Cover plate; 12-Second fan mounting base; 2-First fan; 21-First fan shaft; 22-First waste discharge port; 23-First fan exhaust duct; 24-Chopping blade; 3- Second fan; 31-Second fan shaft; 32-Second waste outlet; 33-Second fan exhaust channel; 4-Secondary stem pulling assembly; 41-Upper secondary stem pulling roller; 42-Lower secondary stem pulling roller; 43-Secondary stem pulling shell; 431-Stem pulling roller maintenance cover; 5-Third fan; 51-Third fan shaft; 52-Third waste outlet; 53-Third fan shell; 531-Upper cover; 531a-Third fan maintenance port; 6-Lifting chain rake; 200-Bract chopping device; 300-Peeling machine. 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 2 As shown, commercially available combine harvesters for harvesting corn ears generally include an elevator, a huller, and a husk chopper. The elevator provided in this embodiment is angled upwards along the combine harvester body, causing the ears to fall into the huller for husk separation. See also... Figures 3-9 The elevator includes an elevator housing 1, a first fan 2, a second fan 3, a secondary stalk pulling assembly 4, and a third fan 5. The first fan 2, second fan 3, and third fan 5 are all used for removing impurities from the ears. After the ears are fed in from the header, they first pass through the first fan 2 and second fan 3 for initial impurity removal. The secondary stalk pulling assembly 4 pulls and separates the remaining straw from the ears, which are then discharged by the third fan 5. Specifically, the first fan 2 is located on the upper surface of the elevator housing 1. An elevator opening 10 is located at the bottom of the upper surface of the elevator housing 1. The first fan 2 is located on the upper surface of the elevator housing 1, above the elevator opening 10, and is connected to the elevator housing 1. The first fan includes a first fan shaft 21 perpendicular to the tilt direction of the elevator. Fan blades are installed on the first fan shaft 21. During the rotation of the first fan shaft 21, impurities are discharged to the outside of the harvester through the first discharge port 22 of the first fan 2. The second fan 3 and the first fan 2 are located on the same side of the elevator housing 1, on the upper surface of the elevator housing 1. The second fan 3 is positioned above the first fan 2 and is connected to the elevator housing 1. Both the first fan 2 and the second fan 3 are suction fans. The second fan 3 includes a second fan shaft 31 arranged parallel to the first fan shaft 21. The second fan shaft 31 is also equipped with fan blades that rotate synchronously with the second fan shaft 31. When the second fan shaft 31 rotates, the second impurity discharge port 32 of the second fan 3 discharges impurities. The secondary stem-pulling assembly 4 is arranged along the width direction of the elevator housing 1, above the second fan 3, and is used for the second stripping of the ear stalks. With the harvester's operating direction as the front, the first fan 2, the second fan 3, the secondary stem-pulling assembly 4, and the third fan 5 are arranged in sequence. The third fan 5 is also a suction fan, including a third fan shaft 51. The third fan shaft 51 is arranged horizontally along the width direction of the elevator housing 1 and is located at the top end of the elevator housing 1. The third fan 5 is connected to the secondary stem-pulling assembly 4 and communicates with the elevator housing 1. The third fan 5 is provided with a third discharge port 52 for the discharge of impurities after the secondary stem-pulling. The first row of waste inlets 22, the second row of waste inlets 32, and the third row of waste inlets 52 are all located on the same side of the harvester to discharge straw during the ear-lifting process. The first row of waste inlets 22 and the second row of waste inlets 32 are used for initial waste removal during ear-lifting. To ensure the cleanliness of subsequent ear processing, the third row of waste inlets 52 discharges the straw stripped after processing by the secondary stalk-pulling assembly 4. The dual waste removal mode, employing a dual suction fan for initial waste removal followed by suction waste removal through the secondary stalk-pulling assembly 4 and the third fan 5, ensures effective waste removal during ear-lifting. Furthermore, since the first fan 2 and the second fan 3 are located on the upper surface of the elevator housing 1, when increasing the feed capacity of the elevator is necessary for larger harvesters, the space below the elevator is maintained while increasing the longitudinal feeding height of the elevator housing 1, ensuring a reasonable overall layout of the harvester.

[0035] In a specific embodiment, the elevator housing 1 is also provided with a first fan mounting base 11 and a second fan mounting base 12. The first fan mounting base 11 and the second fan mounting base 12 are provided so that the lifting chain rake 6 in the elevator can smoothly lift the ears of fruit during the rotation of the first fan 2 and the second fan 3. The first fan shaft 21 and the second fan shaft 31 will not interfere with the lifting chain rake 6. The first fan mounting base 11 and the second fan mounting base 12 are sequentially arranged on the upper surface of the elevator housing 1, corresponding to the first fan 2 and the second fan 3. The structure of the first fan mounting base 11 is the same as the structure of the second fan mounting base 12. The following description focuses on the structure of the first fan mounting base 11. The first mounting base includes a first mounting plate 111 and a second mounting plate 112 symmetrically arranged on both sides of the elevator housing 1. The first mounting plate 111 and the second mounting plate 112 have the same structure and are symmetrically arranged along the direction of the elevator on the harvester. The first mounting plate 111 and the second mounting plate 112 are each provided with a first air regulating port 111a for adjusting the air intake of the first fan 2 to improve the impurity removal effect of the first fan 2. The two ends of the first mounting plate 111 and the second mounting plate 112 are connected by a first protective plate 113 and a second protective plate 114, respectively. The first mounting plate 111, the second mounting plate 112, the first protective plate 113, and the second protective plate 114 form an enclosure, and the first fan 2 is arranged above the formed enclosure. The first fan mounting base 11 is also provided with a cover plate 115. The cover plate 115 is placed above the first mounting plate 111, the second mounting plate 112, the first protective plate 113, and the second protective plate 114 and is closed and connected. The first protective plate 113 is provided with a second air regulating port 113a and an air regulating plate 113b. The size of the air regulating port is adjusted by adjusting the air regulating plate 113b, thereby adjusting the air intake volume of the first fan 2, so as to adjust the impurity removal efficiency and impurity removal speed of the first fan 2.

[0036] During the corn ear lifting process, the lifting chain rake 6 installed in the lifting device transports the ears. To avoid affecting the lifting efficiency, the first fan shaft 21 and the second fan shaft 31 are both located above the lifting chain rake 6, and the first fan shaft 21 and the second fan shaft 31 are equipped with chopping blades 24 that rotate synchronously with the first fan shaft 21 and the second fan shaft 31. During the rotation of the first fan 2 and the second fan, the chopping blades 24 further chop the larger straws to facilitate discharge.

[0037] The secondary stem-pulling assembly 4 is located between the second fan 3 and the third fan 5. The secondary stem-pulling assembly 4 includes an upper secondary stem-pulling roller 41 and a lower secondary stem-pulling roller 42. The secondary stem-pulling housing 43 extends along the setting direction of the elevator housing 1, and the secondary stem-pulling roller housing also extends along the setting direction of the elevator housing 1. The two ends of the upper secondary stem-pulling roller 41 are movably set on both sides of the secondary stem-pulling housing 43, and the two ends of the lower secondary stem-pulling roller 42 are fixed on both sides of the secondary stem-pulling housing 43. There is a gap between the upper secondary stem-pulling roller 41 and the lower secondary stem-pulling roller 42, and the gap between the upper secondary stem-pulling roller 41 and the lower secondary stem-pulling roller 42 can be adjusted by the floating of the upper secondary stem-pulling roller 41. The upper secondary stem-pulling roller 41 is a floating roller, and the lower secondary stem-pulling roller 42 is a fixed roller.

[0038] The third fan housing 53 of the third fan 5 is connected to the secondary stalk pulling housing 43. Since the third fan shaft 51 is parallel to the width direction of the elevator, in a preferred embodiment, the upper cover plate 531 of the third fan housing 53 is provided with a third fan maintenance port 531a for maintenance when the third fan shaft 51 is entangled with straw, thus preventing a decrease in the impurity removal efficiency of the third fan 5. The secondary stalk pulling roller housing is also provided with a stalk pulling roller maintenance cover plate 431, which is located at the connection position between the secondary stalk pulling housing 43 and the elevator housing 1 to prevent blockage between the upper secondary stalk pulling roller 41 and the lower secondary stalk pulling roller 42. By providing the third fan maintenance port 531a and the stalk pulling roller maintenance cover plate 431, the robustness of the ear lifting and impurity removal process is improved.

[0039] In a specific implementation, since a transmission assembly is installed on the outside of the harvester, in order to avoid the ear impurities discharged by the first fan 2 and the second fan 3 causing blockage of the transmission assembly on the outside of the harvester, the first fan exhaust channel 23 of the first fan 2 and the second fan exhaust channel 33 of the second fan 3 need to be adjusted according to the installation position of the transmission assembly. In this embodiment, since there are far more transmission assemblies adjacent to the first fan 2 than adjacent to the second fan 3, the length of the first fan exhaust channel 23 is longer than the length of the second fan exhaust channel 33.

[0040] The harvester provided in the embodiment, which includes the above-mentioned elevator, has a first fan 2 and a second fan 3 both disposed on the upper surface of the elevator housing 1. The rear processing device of the elevator is a peeling machine, and the lower part of the elevator is the husk chopping part of the peeling machine. The space below the elevator housing 1 can be used to install the husk chopping device 200. When the lifting capacity of the elevator needs to be increased, it will not interfere with the placement of the peeling machine 300 on the harvester as a whole, making the overall layout of the harvester compact. At the same time, it can increase the storage volume of the ear box of the whole machine, reduce the frequency of full unloading of grain in the grain bin, and improve the operating efficiency of the harvester.

[0041] 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 lifting device, obliquely upwardly arranged along the body of a harvester, characterized in that, include: The elevator housing includes an elevator port disposed on its upper surface; The first fan is disposed on the upper surface of the elevator housing, above the elevator inlet, and is connected to the elevator housing. The first fan includes a first fan shaft that is perpendicular to the tilt direction of the elevator, and the first fan includes a first discharge port. The second fan is disposed on the upper surface of the elevator housing, above the first fan, and communicates with the elevator housing. The second fan includes a second fan shaft arranged parallel to the shaft of the first fan, and the second fan includes a second exhaust port. A secondary stem-pulling assembly is provided along the width direction of the elevator housing and located above the second fan, for the second stripping of the ear of straw; The third fan includes a third fan shaft, which is horizontally arranged along the width direction of the elevator housing. The third fan is connected to the secondary pull stem assembly and communicates with the elevator housing. The third fan includes a third exhaust port. The first, second, and third discharge ports are located on the same side of the harvester. When the ears of grain are being transported, the first and second discharge ports are used for initial discharge of straw. After the secondary stalk pulling assembly strips the straw a second time, the third discharge port discharges the straw that has been stripped a second time.

2. The elevator as described in claim 1, characterized in that, The elevator housing also includes a first fan mounting base and a second fan mounting base, which are respectively arranged sequentially on the upper surface of the elevator housing for mounting the first fan and the second fan.

3. A lifting device as described in claim 2, characterized in that, The first fan mounting base includes a first mounting plate and a second mounting plate symmetrically arranged on both sides of the elevator housing. The first mounting plate and the second mounting plate are each provided with a first air inlet for adjusting the air intake. The two ends of the first mounting plate and the second mounting plate are connected by a first protective plate and a second protective plate, respectively.

4. A lifting device as described in claim 3, characterized in that, The first fan mounting base also includes a cover plate, which is placed above the first mounting plate, the second mounting plate, the first protective plate, and the second protective plate and is closed and connected; the first protective plate is provided with a second air regulating port and an air regulating plate, and the air intake volume of the first fan is adjusted by adjusting the size of the second air regulating port through the air regulating plate.

5. A lifting device as described in claim 4, characterized in that, The secondary stem pulling assembly includes an upper secondary stem pulling roller, a lower secondary stem pulling roller, and a secondary stem pulling shell. The secondary stem pulling shell extends along the direction of the elevator shell. The lower secondary stem pulling roller is a fixed roller, and the upper secondary stem pulling roller is a floating roller.

6. A lifting device as described in claim 5, characterized in that, The third fan includes a third fan housing that communicates with the secondary pull stem housing, and the upper cover plate of the third fan housing is provided with a third fan maintenance port.

7. A lifting device as described in claim 6, characterized in that, The secondary stem-pulling roller housing is equipped with a stem-pulling roller maintenance cover.

8. A lift as described in claim 7, characterized in that, The first fan includes a first fan exhaust duct, and the second fan includes a second fan exhaust duct. The length of the first fan exhaust duct is longer than the length of the second fan exhaust duct.

9. A lifting device as described in claim 8, characterized in that, The first fan shaft and the second fan shaft are positioned above the lifting chain rake, and the first fan shaft and the second fan shaft are respectively equipped with shredding blades that rotate synchronously with the first fan shaft and the second fan shaft.

10. A harvester, characterized in that, Includes the elevator as described in any one of claims 1-9.

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