Bin unloading drive and harvester

Abstract

The utility model discloses a kind of storage tank unloading driving device and harvester, storage tank unloading driving device includes installation base, lifting mechanism and turnover mechanism, installation base is located at the outer side of storage tank, lifting mechanism includes fixed arm support, lifting arm support, guide bracket and lifting driving part, fixed arm support and lifting driving part are sequentially spaced on installation base in from front to back direction, guide bracket is placed between fixed arm support and lifting driving part and is formed with the accommodation space for lifting driving part accommodation, and the upper end of guide bracket is driven connection with the part of lifting arm support that stretches out from telescopic space, the upper and lower ends of lifting driving part are respectively one-to-one corresponding hinged on guide bracket and installation base, turnover mechanism is located at the rear side of lifting driving part and the upper and lower ends are respectively one-to-one corresponding hinged on guide bracket and storage tank, the device compact structure, avoid due to structural component occupancy harvester internal space and lead to loading capacity reduction.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a material storage box unloading drive device and a harvester. Background Technology

[0002] A harvester is an agricultural machine used for integrated harvesting of crops. It can harvest crops and temporarily store them. After harvesting is completed or the storage bin is full, the harvester needs to transfer the grain in the storage bin to a transport vehicle. The simplest and most efficient way to transfer the grain is to simply dump the crops on the top of the cargo box of the transport vehicle. This requires the height of the storage bin to be greater than the height of the cargo box. However, the cargo boxes of large transport vehicles are relatively high, and the height of conventional harvesters cannot meet the unloading requirements.

[0003] To address this technical problem, existing technology provides a unloading system that can adjust the height of the storage bin to accommodate transport vehicles of different heights. However, because this system occupies additional space in the harvester, the size of the storage bin needs to be reduced, decreasing the grain storage capacity per harvesting operation, increasing the unloading frequency, and affecting overall harvesting efficiency. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies, this utility model provides a material storage box unloading drive device and harvester, which aims to solve the technical problem of large space occupation of existing grain unloading systems.

[0005] To achieve the above objectives, the first aspect of this utility model provides a material unloading drive device for a storage bin, comprising:

[0006] The mounting base is located on the outer side of the storage box; The lifting mechanism includes a fixed boom, a lifting boom, a guide bracket, and a lifting drive component. The fixed boom and the lifting drive component are sequentially spaced on the mounting base in a front-to-back direction. The fixed boom forms a telescopic space for the lifting boom to extend upward. The guide bracket is placed between the fixed boom and the lifting drive component and forms a receiving space for the lifting drive component. The upper end of the guide bracket is driven to connect with the portion of the lifting boom that extends out of the telescopic space. The upper and lower ends of the lifting drive component are respectively hinged to the guide bracket and the mounting base. The tilting mechanism is located on the rear side of the lifting drive component and its upper and lower ends are respectively hinged to the guide bracket and the storage box.

[0007] In this embodiment of the utility model, a notch is formed on the side wall of the accommodating space, and the lifting mechanism further includes a connecting ear plate and a first connecting pin. The connecting ear plate is detachably connected to the side of the guide bracket facing away from the storage box, and a hinge hole corresponding to the notch is formed on the connecting ear plate. The first connecting pin passes through the hinge hole and the notch in sequence to hinge the lifting drive component.

[0008] In this embodiment of the utility model, the lifting mechanism further includes a lifting connecting seat, which includes a slotted seat body and a limiting post portion passing through the slotted seat body. The slotted seat body is disposed in the accommodating space and forms an accommodating groove into which the connecting end of the lifting drive member extends. The two ends of the limiting post portion respectively abut against the connecting ear plate and the connecting end of the lifting drive member. The limiting post portion forms a pin hole for the first connecting pin to pass through. The outer peripheral wall of the limiting post portion abuts against the inner wall of the recess.

[0009] In this embodiment of the utility model, a flip-connecting seat is provided on the side of the guide bracket facing the storage box. One end of the flip-connecting seat extends out of the guide bracket towards the rear and is used for hinged connection of the flipping mechanism.

[0010] In this embodiment of the utility model, the flip-over connecting seat includes an integrally formed connecting plate and an abutting plate. The connecting plate is laterally connected to the guide bracket, and the abutting plate abuts against the side of the guide bracket away from the fixed arm. A second connecting pin for hinged flip-over mechanism is provided on the connecting plate.

[0011] In this embodiment of the utility model, the lifting drive component is configured as a hydraulic cylinder, which has a cylinder barrel and a piston rod. A locking rod connecting seat is provided on the side of the fixed boom facing away from the storage box. The storage box unloading drive device also includes a locking rod, which is detachably connected to the locking rod connecting seat. One side of the locking rod is recessed to form a channel for the piston rod of the hydraulic cylinder to pass through. One end of the locking rod is used to abut against the cylinder barrel, and the other end is used to abut against the connecting end of the piston rod.

[0012] In this embodiment of the utility model, the unloading drive device for the storage box further includes a reinforcing base and a lateral support rod. The reinforcing base is located on the rear side of the mounting base, and the lateral support rod is connected to the fixed arm and the mounting base respectively.

[0013] In this embodiment of the utility model, a lifting mechanism and a tilting mechanism are provided on both the left and right sides of the storage box.

[0014] In this embodiment of the utility model, the unloading drive device for the storage bin further includes a first boom reinforcement assembly. The first boom reinforcement assembly is located on the front side of the storage bin, and the first boom reinforcement assembly includes a first rod group and a second rod group arranged in a cross manner. The first ends of the first rod group and the second rod group are connected to the fixed boom on the left side of the storage bin, and the second ends of the first rod group and the second rod group are connected to the fixed boom on the right side of the storage bin.

[0015] In this embodiment of the utility model, the first boom reinforcement assembly further includes an intermediate plate, and the first rod group and the second rod group each include a first rod segment and a second rod segment. The first rod group connects the intermediate plate and the fixed boom on the left side of the storage box, and the second rod segment connects the intermediate plate and the fixed boom on the right side of the storage box.

[0016] In this embodiment of the utility model, the unloading drive device for the storage bin further includes a second boom reinforcement assembly. The first boom reinforcement assembly is disposed between the storage bin and the first boom reinforcement assembly. The second boom reinforcement assembly includes a third rod group and a fourth rod group arranged in a cross pattern. The first end of the third rod group and the fourth rod group is connected to the lifting boom on the left side of the storage bin, and the second end of the third rod group and the fourth rod group is connected to the lifting boom on the right side of the storage bin.

[0017] To achieve the above objectives, a second aspect of this utility model provides a harvester including a material storage bin unloading drive device.

[0018] Through the above technical solution, the material unloading drive device for the storage bin provided in this utility model embodiment has the following beneficial effects: When using the above-mentioned storage bin unloading drive device, the lifting mechanism is arranged on the outer side of the storage bin via the mounting base. Compared with the existing lifting structure, the storage bin unloading drive device of this utility model has a guide bracket between the fixed arm and the lifting drive component. The lifting drive component is placed in the accommodating space of the guide bracket, and the tilting mechanism is hinged to the guide bracket, so that the lifting drive component and the tilting mechanism are integrated on the same side of the fixed arm. The overall structure is more compact and does not occupy the space on the front side of the storage bin, ensuring the effective volume of the storage bin and avoiding the reduction of loading capacity due to structural components occupying the internal space of the harvester.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The accompanying drawings are provided to illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a side view of the initial state of the unloading drive device for the storage bin according to an embodiment of the present utility model; Figure 2 This is a perspective view of the initial state of the unloading drive device for the storage bin according to an embodiment of the present utility model; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 yes Figure 2 A magnified view of a section at point B in the middle; Figure 5 This is a side view of the material unloading drive device of the storage box in the lifting state according to an embodiment of the present utility model; Figure 6 This is a front view of the initial state of the unloading drive device for the storage bin according to an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures Detailed Implementation

[0022] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0023] The following is for reference. Figures 1 to 6 This invention describes a material storage bin unloading drive device and a harvester.

[0024] like Figure 1 , Figure 2 and Figure 5 As shown, this utility model provides a material unloading drive device for a storage bin, comprising: The mounting base 100 is located on the outer side of the storage box 800; The lifting mechanism 300 includes a fixed boom 310, a lifting boom 320, a guide bracket 330, and a lifting drive member 340. The fixed boom 310 and the lifting drive member 340 are sequentially spaced on the mounting base 100 in a front-to-back direction. The fixed boom 310 forms a telescopic space for the lifting boom 320 to extend upward. The guide bracket 330 is placed between the fixed boom 310 and the lifting drive member 340 and forms a receiving space for the lifting drive member 340. The upper end of the guide bracket 330 is drivenly connected to the part of the lifting boom 320 that extends out of the telescopic space. The upper and lower ends of the lifting drive member 340 are respectively hinged to the guide bracket 330 and the mounting base 100. The tilting mechanism 600 is located on the rear side of the lifting drive 340 and its upper and lower ends are respectively hinged to the guide bracket 330 and the storage box 800.

[0025] When using the aforementioned storage bin unloading drive device, the lifting mechanism 300 is arranged on the outer side of the storage bin 800 via the mounting base 100. Compared to existing lifting structures, the storage bin unloading drive device of this invention has a guide bracket 330 between the fixed boom 310 and the lifting drive component 340. The lifting drive component 340 is placed within the accommodating space of the guide bracket 330. The tilting mechanism 600 is hinged to the guide bracket 330, integrating the lifting drive component 340 and the tilting mechanism 600 on the same side of the fixed boom 310. This results in a more compact overall structure that does not occupy the space at the front of the storage bin 800, ensuring the effective volume of the storage bin 800 and preventing a reduction in loading capacity due to structural components occupying the internal space of the harvester. Furthermore, the guide bracket 330 can also laterally limit the lifting drive component 340, preventing lateral displacement during telescopic movement and improving the stability of the lifting boom 320's vertical movement.

[0026] like Figure 3 As shown in this embodiment of the invention, a notch is formed on the side wall of the accommodating space. The lifting mechanism 300 also includes a connecting ear plate 360 ​​and a first connecting pin 370. The connecting ear plate 360 ​​is detachably connected to the side of the guide bracket 330 facing away from the storage box 800, and a hinge hole corresponding to the notch is formed on the connecting ear plate 360. The first connecting pin 370 passes through the hinge hole and the notch in sequence to hinge the lifting drive component 340. With the detachable connecting ear plate 360 ​​design, when the lifting drive component 340 needs to be repaired or replaced, it is not necessary to disassemble the entire guide bracket 330. Only the connecting ear plate 360 ​​needs to be removed from the guide bracket 330 to take out the first connecting pin 370, thereby operating the lifting drive component 340, greatly reducing maintenance difficulty and time costs. Furthermore, by rotating the position of the connecting ear plate 360, the position of the hinge hole can be adjusted to ensure that the hinge hole is aligned with the notch, reducing the requirement for manufacturing precision.

[0027] like Figure 3As shown in this embodiment of the invention, the lifting mechanism 300 further includes a lifting connecting seat 350. The lifting connecting seat 350 includes a slotted body 351 and a limiting post portion 352 passing through the slotted body 351. The slotted body 351 is disposed within the accommodating space and forms an accommodating groove into which the connecting end of the lifting drive member 340 extends. The two ends of the limiting post portion 352 respectively abut against the connecting ear plate 360 ​​and the connecting end of the lifting drive member 340. The limiting post portion 352 forms a pin hole through which the first connecting pin 370 passes. The outer peripheral wall of the limiting post portion 352 abuts against the inner wall of the recess. Thus, the lifting connecting seat 350 can further limit the position of the lifting drive member 340, effectively preventing it from shifting laterally during operation. Meanwhile, the abutting fit between the outer peripheral wall of the limiting column 352 and the inner wall of the recess enhances the rigidity and stability of the overall structure, ensuring that the lifting drive component 340 can transmit a stable driving force when driving the tilting mechanism 600 to operate, thereby improving the working reliability and service life of the storage box unloading drive device.

[0028] like Figure 4 As shown in this embodiment of the utility model, a flip connecting seat 380 is provided on the side of the guide bracket 330 facing the storage box 800. One end of the flip connecting seat 380 extends out of the guide bracket 330 toward the rear and is used for hinged connection of the flipping mechanism 600.

[0029] like Figure 4 As shown in this embodiment of the invention, the flip-up connecting seat 380 includes an integrally formed connecting plate 381 and an abutment plate 382. The connecting plate 381 is laterally connected to the guide bracket 330, and the abutment plate 382 abuts against the side of the guide bracket 330 away from the fixed arm 310. A second connecting pin for hinged flip-up mechanism 600 is provided on the connecting plate 381. The abutment plate 382 can directly transfer the gravity borne by the flip-up mechanism 600 to the guide bracket 330, preventing the connection structure between the wall connecting plate 381 and the guide bracket 330 from deforming or being damaged due to excessive load.

[0030] like Figure 2As shown in this embodiment of the invention, the lifting drive component 340 includes at least one hydraulic cylinder, which includes a cylinder barrel 341 and a piston rod 342. A locking rod connecting seat 420 is provided on the side of the fixed boom 310 facing away from the storage tank 800. The storage tank unloading drive device also includes a locking rod 410, which is detachably connected to the locking rod connecting seat 420. One side of the locking rod 410 has a recessed channel for the piston rod 342 of the hydraulic cylinder to pass through. One end of the locking rod 410 abuts against the cylinder barrel 341, and the other end abuts against the connecting end of the piston rod 342. When the piston rod 342 of the hydraulic cylinder extends, the operator can limit and lock the piston rod 342 using the locking rod 410. Even if the hydraulic system fails, the mechanical mechanism of the locking rod 410 ensures that the piston rod 342 will not retract unexpectedly, effectively avoiding the risk of unloading interruption or material spillage due to hydraulic failure.

[0031] Specifically, the lever 410 can be configured to abut against the slot body 351 of the lifting connection seat 350, or it can be configured to abut against the limiting column part 352.

[0032] like Figure 1 and Figure 2 As shown in this embodiment of the invention, the storage bin unloading drive device further includes a reinforcing base 200 and a lateral support rod 500. The reinforcing base 200 is located on the rear side of the mounting base 100, and the lateral support rod 500 is connected to the fixed arm 310 and the mounting base 100 respectively. The lateral support rod 500, the fixed arm 310, and the mounting base 100 form a stable triangular support structure, effectively dispersing the lateral force generated by the fixed arm 310 during the unloading process while bearing the weight of the storage bin 800, preventing deformation of the fixed arm 310, and further improving the overall structural stability and operational reliability of the storage bin unloading drive device.

[0033] like Figure 6 As shown in this embodiment of the invention, a lifting mechanism 300 and a tilting mechanism 600 are provided on both the left and right sides of the storage box 800. The lifting mechanism 300 and the tilting mechanism 600 on both sides are symmetrically distributed, which can provide driving force from both sides of the storage box 800 simultaneously, ensuring that the storage box 800 is subjected to uniform force during the tilting and unloading process, and avoiding structural deformation or tilting jamming caused by excessive force on one side.

[0034] Specifically, both the lifting mechanism 300 and the tilting mechanism 600 on both sides use hydraulic cylinders as driving components, and the hydraulic cylinders on both sides are controlled by the same hydraulic system to ensure the synchronization of the actions of the hydraulic cylinders on both sides.

[0035] like Figure 5 and Figure 6As shown in this embodiment of the invention, the unloading drive device for the storage bin further includes a first boom reinforcement assembly 700. The first boom reinforcement assembly 700 is located on the front side of the storage bin 800, and includes a first rod group 710 and a second rod group 720 arranged in a cross configuration. The first ends of the first rod group 710 and the second rod group 720 are connected to the fixed boom 310 on the left side of the storage bin 800, and the second ends of the first rod group 710 and the second rod group 720 are connected to the fixed boom 310 on the right side of the storage bin 800. The first rod group 710 and the second rod group 720 form a stable triangular support system through a cross structure, which can effectively disperse the lateral torque generated by the fixed boom 310 during the bearing of the weight of the storage bin 800 and the drive rotation process, thereby improving the overall deformation resistance of the fixed boom 310.

[0036] Specifically, a reinforcing bracket 390 is also provided on the side of the fixed boom 310 facing away from the guide bracket 330. Both the guide bracket 330 and the reinforcing bracket 390 are made of channel steel and are arranged symmetrically.

[0037] Specifically, the fixed boom 310 is also provided with an extension plate 740, which extends horizontally out of the storage box 800 for connecting the first boom reinforcement assembly 700.

[0038] Specifically, the first boom reinforcement assembly 700 also includes an intermediate plate 730. The first rod group 710 and the second rod group 720 each include a first rod segment and a second rod segment. The first rod group 710 connects the intermediate plate 730 to the fixed boom 310 on the left side of the storage tank 800, and the second rod segment connects the intermediate plate 730 to the fixed boom 310 on the right side of the storage tank 800. Both the first and second rod segments are welded to the intermediate plate 730. Compared to the direct welding connection method of the first rod group 710 and the second rod group 720, the intermediate plate 730 increases the welding area, thereby improving the structural strength of the connection node.

[0039] Furthermore, the unloading drive device for the storage bin also includes a second boom reinforcement assembly. A first boom reinforcement assembly 700 is disposed between the storage bin 800 and the first boom reinforcement assembly 700. The second boom reinforcement assembly includes a third and fourth set of rods arranged in a cross configuration. The first ends of the third and fourth sets of rods are connected to the lifting boom 320 on the left side of the storage bin 800, and the second ends are connected to the lifting boom 320 on the right side of the storage bin 800. The second boom reinforcement assembly is used to distribute the lateral torque generated by the lifting boom 320 during the load-bearing and driving tilting processes of the storage bin 800, thereby improving the overall deformation resistance of the lifting boom 320.

[0040] To achieve the above objectives, the second aspect of this utility model provides a harvester including a material storage bin unloading drive device. Since the harvester adopts all the technical solutions of the above embodiments, it has at least the above-mentioned beneficial effects.

[0041] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0042] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A material unloading drive device for a storage bin, characterized in that, The unloading drive device for the storage tank includes: The mounting base (100) is located on the outer side of the storage box (800); The lifting mechanism (300) includes a fixed boom (310), a lifting boom (320), a guide bracket (330), and a lifting drive (340). The fixed boom (310) and the lifting drive (340) are sequentially spaced on the mounting base (100) in a front-to-back direction. The fixed boom (310) forms a telescopic space for the lifting boom (320) to extend upward. The guide bracket (330) is placed between the fixed boom (310) and the lifting drive (340) and forms a receiving space for the lifting drive (340). The upper end of the guide bracket (330) is drivenly connected to the portion of the lifting boom (320) that extends out of the telescopic space. The upper and lower ends of the lifting drive (340) are respectively hinged to the guide bracket (330) and the mounting base (100). A flipping mechanism (600) is located on the rear side of the lifting drive (340) and its upper and lower ends are respectively hinged to the guide bracket (330) and the storage box (800).

2. The material unloading drive device for the storage bin according to claim 1, characterized in that, A notch is formed on the side wall of the accommodating space. The lifting mechanism (300) also includes a connecting ear plate (360) and a first connecting pin (370). The connecting ear plate (360) is connected to the side of the guide bracket (330) facing away from the storage box (800). A hinge hole corresponding to the notch is formed on the connecting ear plate (360). The first connecting pin (370) passes through the hinge hole and the notch in sequence to hinge the lifting drive (340).

3. The material unloading drive device for the storage bin according to claim 2, characterized in that, The lifting mechanism (300) further includes a lifting connecting seat (350), which includes a slot body (351) and a limiting post portion (352) passing through the slot body (351). The slot body (351) is located in the accommodating space and forms an accommodating groove into which the connecting end of the lifting drive member (340) extends. The two ends of the limiting post portion (352) respectively abut against the connecting ear plate (360) and the connecting end of the lifting drive member (340). The limiting post portion (352) forms a pin hole through which the first connecting pin (370) passes. The outer peripheral wall of the limiting post portion (352) abuts against the inner wall of the recess.

4. The material unloading drive device for the storage bin according to claim 1, characterized in that, The guide bracket (330) is provided with a flip connecting seat (380) on the side facing the storage box (800). One end of the flip connecting seat (380) extends out of the guide bracket (330) and is used for hinge to the flipping mechanism (600).

5. The material unloading drive device for the storage bin according to claim 4, characterized in that, The flip-up connecting seat (380) includes an integrally formed connecting plate (381) and abutting plate (382). The connecting plate (381) is laterally connected to the guide bracket (330), and the abutting plate (382) abuts against the side of the guide bracket (330) away from the fixed arm (310). A second connecting pin for hinged connection of the flip-up mechanism (600) is provided on the connecting plate (381).

6. The material unloading drive device for the storage bin according to any one of claims 1 to 5, characterized in that, The lifting drive (340) includes at least one hydraulic cylinder, which includes a cylinder barrel (341) and a piston rod (342). The fixed boom (310) is provided with a lever connecting seat (420) on the side facing away from the storage tank (800). The storage tank unloading drive device also includes a lever (410). The lever (410) is detachably connected to the lever connecting seat (420). One side of the lever (410) is recessed to form a channel for the piston rod (342) of the hydraulic cylinder to pass through. One end of the lever (410) is used to abut against the cylinder barrel (341), and the other end is used to abut against the connecting end of the piston rod (342). And / or, the unloading drive device of the storage box further includes a reinforcing base (200) and a lateral support rod (500), the reinforcing base (200) being located on the rear side of the mounting base (100), and the lateral support rod (500) being connected to the fixed arm (310) and the mounting base (100) respectively.

7. The material unloading drive device for the storage bin according to any one of claims 1 to 5, characterized in that, The lifting mechanism (300) and the tilting mechanism (600) are provided on both the left and right sides of the storage box (800).

8. The material unloading drive device for the storage bin according to claim 7, characterized in that, The unloading drive device for the storage bin also includes a first boom reinforcement assembly (700), which is located on the front side of the storage bin (800). The first boom reinforcement assembly (700) includes a first rod group (710) and a second rod group (720) arranged in a cross pattern. The first ends of the first rod group (710) and the second rod group (720) are connected to the fixed boom (310) on the left side of the storage bin (800), and the second ends of the first rod group (710) and the second rod group (720) are connected to the fixed boom (310) on the right side of the storage bin (800).

9. The material unloading drive device for the storage bin according to claim 8, characterized in that, The first boom reinforcement assembly (700) also includes an intermediate plate (730). The first rod group (710) and the second rod group (720) each include a first rod segment and a second rod segment. The first rod group (710) connects the intermediate plate (730) and the fixed boom (310) on the left side of the storage tank (800). The second rod segment connects the intermediate plate (730) and the fixed boom (310) on the right side of the storage tank (800). And / or, the unloading drive device of the storage tank further includes a second boom reinforcement assembly, the first boom reinforcement assembly (700) is disposed between the storage tank (800) and the first boom reinforcement assembly (700), the second boom reinforcement assembly includes a third rod group and a fourth rod group arranged in a cross manner, the first end of the third rod group and the fourth rod group is connected to the lifting boom (320) on the left side of the storage tank (800), and the second end of the third rod group and the fourth rod group is connected to the lifting boom (320) on the right side of the storage tank (800).

10. A harvester, characterized in that, The harvester includes a material unloading drive device for the storage bin according to any one of claims 1 to 9.

Images