Multi-station walnut trimming vehicle

Abstract

The utility model discloses a multi-station walnut trimming vehicle, which comprises a vehicle body, a hanging basket, a multi-person operation platform, a lifting arm device, a turntable bearing, a lifting device and a controller, the hanging basket is arranged on the front side of the vehicle body through the lifting arm device, and the hanging basket is driven to move back and forth through the lifting arm device; the lifting arm device is connected with the vehicle body through a turntable bearing, rotation of a hanging basket is achieved through the turntable bearing, the multi-person operation platform is installed on the rear side of the vehicle body through the lifting device and driven to ascend and descend through the lifting device, and the controller is electrically connected with the lifting arm device and the lifting device. And the controller controls the lifting arm device and the lifting device to move. According to the pruning vehicle, the pruning work station can move in a large range on the horizontal plane and the vertical plane, the pruning work requirement of a walnut orchard is met, and meanwhile the trafficability between fruit trees is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of walnut planting, in particular to a multi-station walnut pruning vehicle. Background Art

[0002] There is little research and immaturity in existing walnut pruning machinery. During the walnut pruning process, affected by factors such as operation level, mechanical structure, and working conditions, there are problems such as excessive stubble on the pruned branches, tearing of walnut branches, and low pruning rate. Affected by the above factors, manual operation is mostly used for current walnut shaping and pruning. Therefore, the multi-station operation platform for assisting manual pruning in orchards is the most likely way to be popularized in walnut pruning mechanization at present. However, to apply the multi-station operation platform to walnut pruning, two problems need to be solved: one is that walnut fruit trees are tall, requiring the workstations of the operation platform to reach a relatively high position; the other is that the crown diameter of walnut fruit trees is large and the distribution range of pruned branches is large, requiring the workstations of the operation platform to cover the horizontal distribution range of the branches without affecting the movement of the platform between rows. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a multi-station walnut pruning vehicle, which can realize the large-range movement of the pruning operation workstation in the horizontal and vertical planes, adapt to the pruning operation requirements of walnut orchards, and ensure the passing ability between fruit trees at the same time.

[0004] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0005] A multi-station walnut pruning vehicle includes a vehicle body, a hanging basket, a multi-person operation platform, a lifting arm device, a turntable bearing, a lifting device, and a controller. The hanging basket is installed on the front side of the vehicle body through the lifting arm device, and the hanging basket is driven to move back and forth by the lifting arm device. The lifting arm device is connected to the vehicle body through the turntable bearing, and the hanging basket is rotated through the turntable bearing. The multi-person operation platform is installed on the rear side of the vehicle body through the lifting device, and the multi-person operation platform is driven to lift by the lifting device. The controller is electrically connected to the lifting arm device and the lifting device respectively, and the controller controls the movement of the lifting arm device and the lifting device.

[0006] Further, the lifting arm device includes a base, a bracket, a multi-stage telescopic rod, a first telescopic oil cylinder, and a second telescopic oil cylinder. The bottom end of the base is installed on the vehicle body through a turntable bearing. The bracket is integrally triangular in structure, and an installation position for installing the multi-stage telescopic rod is formed at its center. The multi-stage telescopic rod includes at least three levels of telescopic rods sleeved in sequence, and its first-level telescopic rod is installed at the installation position. The bottom end of the rear side of the bracket is hinged to the top end of the base through a hinge shaft, and the top end of the rear side is hinged to the rear end of the second telescopic oil cylinder through a hinge shaft. The bottom end of the front side is hinged to the top end of the first telescopic oil cylinder through a hinge shaft. The hanging basket is connected to the foremost end of the multi-stage telescopic rod. The front end of the second telescopic oil cylinder is connected to the front end of the second-level telescopic rod of the multi-stage telescopic rod. The second telescopic oil cylinder is electrically connected to the controller, and the controller controls the second telescopic oil cylinder to drive the multi-stage telescopic rod to extend and retract forward and drive the hanging basket to move back and forth. The bottom end of the first telescopic oil cylinder is hinged to the base, and the first telescopic oil cylinder is electrically connected to the controller. The controller controls the first telescopic oil cylinder to drive the bracket to rotate around the hinge shaft between the base and the bracket, thereby driving the multi-stage telescopic rod and the hanging basket to rotate.

[0007] Further, the lifting device includes a scissor lift mechanism and a lift mechanism oil cylinder. The scissor lift mechanism is installed on the chassis at the rear side of the vehicle body. The lift mechanism oil cylinder is electrically connected to the controller. One end of it is fixed to the chassis, and the other end is connected to the scissor lift mechanism. The multi-person operation platform is installed on the scissor lift mechanism, and the controller controls the lift mechanism oil cylinder to drive the scissor lift mechanism to drive the multi-person operation platform to lift.

[0008] Further, the scissor lift mechanism adopts a two-stage scissor lift mechanism.

[0009] Further, a plurality of limit supports for controlling the contraction position of the scissor lift mechanism are arranged on the chassis.

[0010] Further, a plurality of ground support mechanisms for enhancing the stability of the pruning vehicle are arranged around the chassis. The ground support mechanism includes a ground support bracket and a ground support oil cylinder. The ground support oil cylinder is electrically connected to the controller. One end of it is connected to the chassis, and the other end is connected to the ground support bracket. An extension rod is arranged inside the ground support bracket. The controller controls the ground support oil cylinder to drive the ground support bracket to extend, then pulls out the extension rod inside the ground support bracket and supports it on the ground, and finally fixes the extension rod to the ground support bracket through a pin.

[0011] Further, there are two lifting arm devices, symmetrically arranged on the left and right sides at the front end of the vehicle body, and a hanging basket is connected to the front end of each lifting arm device.

[0012] Furthermore, the multi-person operation platform includes a platform main body, platform extension plates, extension plate cylinders, and guardrails. There are two platform extension plates, symmetrically arranged on the left and right sides at the bottom of the platform main body. Each platform extension plate is equipped with two extension plate cylinders. The two extension plate cylinders are arranged in parallel and are electrically connected to the controller respectively. One end of the two extension plate cylinders is connected to the corresponding platform extension plate, and the other end is connected to the platform main body. The platform extension plates are driven by the two extension plate cylinders to move to the left or right side of the platform main body, thereby expanding the operation area of the multi-person operation platform. Guardrails are provided at the edges of the platform main body and the platform extension plates close to the outside.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0014] 1. The pruning vehicle of the present invention has the advantages of being foldable, unfoldable, and liftable, etc. It can realize multi-station operations and large-range movement of the stations in the horizontal and vertical planes, adapt to the characteristics of large crown diameters of walnut fruit trees and large distribution ranges of pruned branches, while ensuring the passing performance of the pruning vehicle among fruit trees and greatly improving work efficiency.

[0015] 2. The pruning vehicle of the present invention adopts a single-arm folding arm type of arm structure, which has a simple structure, low cost, high practicability, and is suitable for popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the pruning vehicle of the present invention.

[0017] Figure 2 is a front view of the pruning vehicle of the present invention.

[0018] Figure 3 is a side view of the pruning vehicle of the present invention.

[0019] Figure 4 is a structural schematic diagram of the lifting arm device of the present invention.

[0020] Figure 5 is a bottom view of the multi-person operation platform of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment:

[0023] As shown in Figures 1 to 3 , this embodiment provides a multi-station walnut pruning vehicle, which includes a vehicle body 1, a hanging basket 2, a multi-person operation platform 3, a lifting arm device 4, a turntable bearing 5, a lifting device 6 and a controller (not shown in the figure). The hanging basket 2 is installed on the front side of the vehicle body 1 through the lifting arm device 4, and the lifting arm device 4 drives the hanging basket 2 to move back and forth. The lifting arm device 4 is connected to the vehicle body 1 through the turntable bearing 5, and the hanging basket 3 can be rotated 360 degrees through the turntable bearing 5. The multi-person operation platform 3 is installed on the rear side of the vehicle body 1 through the lifting device 6, and the lifting device 6 drives the multi-person operation platform 3 to lift. The controller is electrically connected to the lifting arm device 4 and the lifting device 6 respectively, and the controller controls the movement of the lifting arm device 4 and the lifting device 6.

[0024] As shown in Figure 4 , the lifting arm device 4 includes a base 401, a bracket 402, a multi-stage telescopic rod, a first telescopic oil cylinder 403 and a second telescopic oil cylinder 404. The bottom end of the base 401 is installed on the vehicle body 1 through the turntable bearing 5. The bracket 402 is integrally triangular in structure, and an installation position for installing the multi-stage telescopic rod is formed at its center. The multi-stage telescopic rod includes at least three levels of telescopic rods sleeved in sequence. In this embodiment, three levels are taken as an example. Its first-stage telescopic rod 405 is installed in the installation position. The bottom end of the rear side of the bracket 402 is hinged to the top end of the base 401 through a hinge shaft, and the top end of the rear side is hinged to the rear end of the second telescopic oil cylinder 404 through a hinge shaft. The bottom end of the front side is hinged to the top end of the first telescopic oil cylinder 403 through a hinge shaft. The hanging basket 2 is connected to the front end of the third-stage telescopic rod 407 of the multi-stage telescopic rod. The front end of the second telescopic oil cylinder 404 is connected to the front end of the second-stage telescopic rod 406 of the multi-stage telescopic rod. The second telescopic oil cylinder 404 is electrically connected to the controller. The controller controls the second telescopic oil cylinder 404 to drive the second-stage telescopic rod 406 to extend and retract forward and drive the hanging basket 2 to move back and forth. At the same time, when the distance of the hanging basket 2 moving back and forth is not enough, the pin 408 between the third-stage telescopic rod 407 and the second-stage telescopic rod 406 can also be manually opened to pull out the third-stage telescopic rod 407 to extend the distance, and then the relative position of the third-stage telescopic rod 407 and the second-stage telescopic rod 406 is fixed through the pin 408, so as to realize operations at different positions. The bottom end of the first telescopic oil cylinder 403 is hinged to the base 401. The first telescopic oil cylinder 403 is electrically connected to the controller. The controller controls the first telescopic oil cylinder 403 to drive the bracket 402 to rotate around the hinge shaft between the base 401 and the bracket 402, thereby driving the multi-stage telescopic rod and the hanging basket 2 to rotate.

[0025] The lifting device 6 includes a scissor lift mechanism 601 and a lift mechanism oil cylinder 602. The scissor lift mechanism 601 is installed on the chassis 7 at the rear side of the vehicle body 1. The scissor lift mechanism 601 in this embodiment adopts a two-stage scissor lift mechanism. The lift mechanism oil cylinder 602 is electrically connected to the controller. One end of it is fixed on the chassis 7, and the other end is connected to the scissor lift mechanism 601. The multi-person working platform 3 is installed on the scissor lift mechanism 601. The controller controls the lift mechanism oil cylinder 602 to drive the scissor lift mechanism 601 to drive the multi-person working platform 3 to lift and lower.

[0026] A plurality of limit supports 8 for controlling the contraction position of the scissor lift mechanism 601 are arranged on the chassis 7.

[0027] To enhance the stability of the pruning vehicle, four ground support mechanisms 9 are arranged around the chassis 7. The ground support mechanism 9 includes a ground support oil cylinder 901 and a ground support bracket 902. The ground support oil cylinder 901 is electrically connected to the controller. One end of it is connected to the chassis 7, and the other end is connected to the ground support bracket 902. An extension rod 903 is arranged inside the ground support bracket 902. When the multi-person working platform 3 is working, the controller controls the ground support oil cylinder 901 to drive the ground support bracket 902 to extend. Then, the extension rod 903 inside the ground support bracket 902 is pulled out and supported on the ground. Finally, the extension rod 903 is fixed to the ground support bracket 902 through a pin 904 to enhance the stability of the whole machine. When the operation is over, the scissor lift mechanism 601 contracts, the multi-person working platform 3 drops, and the contraction position of the scissor lift mechanism 601 is controlled by the limit support 8. Then, the pin 904 between the extension rod 903 and the ground support bracket 902 is pulled out to restore the ground support mechanism 9.

[0028] To further improve the working efficiency, two lifting arm devices 4 are provided in this embodiment. The two lifting arm devices 4 are symmetrically arranged on the left and right sides at the front end of the vehicle body 1. A hanging basket 2 is connected to the front end of each lifting arm device 4. The two lifting arm devices 4 do not interfere with each other. It is convenient for multiple picking personnel to prune branches at different heights and positions simultaneously through the two hanging baskets 2.

[0029] Such as Figure 5As shown in the figure, the multi-person operation platform 3 includes a platform main body 301, platform extension plates 302, extension plate hydraulic cylinders 303, and guardrails 304. There are two platform extension plates 302, symmetrically arranged on the left and right sides of the bottom of the platform main body 301. Each platform extension plate 302 is equipped with two extension plate hydraulic cylinders 303. The two extension plate hydraulic cylinders 303 are arranged in parallel and are respectively electrically connected to the controller. One end of the two extension plate hydraulic cylinders 303 is connected to the corresponding platform extension plate 302, and the other end is connected to the platform main body 301. By driving the platform extension plates 302 to move to the left or right of the platform main body 301 through the two extension plate hydraulic cylinders 303, the operation area of the multi-person operation platform 3 is enlarged. Guardrails 304 are provided at the edges of the platform main body 301 and the platform extension plates 302 close to the outside.

[0030] The usage method of the above multi-station walnut pruning vehicle is as follows:

[0031] First, drive the pruning vehicle to the designated position, cut off the power supply and check its integrity. After confirming that there is no problem, the picking personnel stand on the hanging basket 2 or the multi-person operation platform 3, and then control the movement of the multi-person operation platform 3 and the hanging basket 2 through the controller.

[0032] When controlling the hanging basket 2, first control the second-stage telescopic rod 406 to extend forward through the second telescopic hydraulic cylinder 404. At this time, if the distance of the hanging basket 2 does not meet the requirements, the pin between the third-stage telescopic rod 407 and the second-stage telescopic rod 406 can also be removed, the third-stage telescopic rod 407 can be manually pulled out, and then the second-stage telescopic rod 406 and the third-stage telescopic rod 407 are connected together to achieve long-distance pruning. Through the cooperation of the multi-stage telescopic rods and the slewing bearing 5, it is convenient for the picking personnel to prune the branches at different heights and positions.

[0033] When controlling the multi-person operation platform 3, the multi-person operation platform 3 is lifted and lowered through the lifting device 6 to increase the operation height. When the pruning range is exceeded during the pruning process, the platform extension plates 302 can also be extended from under the multi-person operation platform 3 by controlling the extension plate hydraulic cylinders 303 to expand the overall operation area.

[0034] The above is only a preferred embodiment of the utility model patent, but the protection scope of the utility model patent is not limited thereto. Any person skilled in the art within the scope disclosed by the utility model patent, according to the technical solution of the utility model patent and the inventive concept of the utility model patent, makes equivalent substitutions or changes, all belong to the protection scope of the utility model patent.

Claims

1. A multi-station walnut pruning vehicle, characterized in that: It includes a vehicle body, a hanging basket, a multi-person working platform, a lifting arm device, a slewing bearing, a lifting device and a controller. The hanging basket is installed on the front side of the vehicle body through the lifting arm device, and the lifting arm device drives the hanging basket to move back and forth. The lifting arm device is connected to the vehicle body through the slewing bearing, and the hanging basket is rotated through the slewing bearing. The multi-person working platform is installed on the rear side of the vehicle body through the lifting device, and the lifting device drives the multi-person working platform to lift. The controller is electrically connected to the lifting arm device and the lifting device respectively, and the controller controls the movement of the lifting arm device and the lifting device.

2. The multi-station walnut pruning vehicle according to claim 1, characterized in that: The lifting arm device includes a base, a bracket, a multi-stage telescopic rod, a first telescopic oil cylinder and a second telescopic oil cylinder. The bottom end of the base is installed on the vehicle body through the slewing bearing. The bracket is integrally triangular in structure, and an installation position for installing the multi-stage telescopic rod is formed at its center. The multi-stage telescopic rod includes at least three levels of telescopic rods sleeved in sequence, and its first-level telescopic rod is installed at the installation position. The bottom end of the rear side of the bracket is hinged to the top end of the base through a hinge shaft, the top end of the rear side is hinged to the rear end of the second telescopic oil cylinder through a hinge shaft, and the bottom end of the front side is hinged to the top end of the first telescopic oil cylinder through a hinge shaft. The hanging basket is connected to the front end of the multi-stage telescopic rod. The front end of the second telescopic oil cylinder is connected to the front end of the second-level telescopic rod of the multi-stage telescopic rod. The second telescopic oil cylinder is electrically connected to the controller, and the controller controls the second telescopic oil cylinder to drive the multi-stage telescopic rod to extend and retract forward and drive the hanging basket to move back and forth. The bottom end of the first telescopic oil cylinder is hinged to the base. The first telescopic oil cylinder is electrically connected to the controller, and the controller controls the first telescopic oil cylinder to drive the bracket to rotate around the hinge shaft between the base and the bracket, thereby driving the multi-stage telescopic rod and the hanging basket to rotate.

3. The multi-station walnut pruning vehicle according to claim 1, characterized in that: The lifting device includes a scissor-type lifting mechanism and a lifting mechanism oil cylinder. The scissor-type lifting mechanism is installed on the chassis at the rear side of the vehicle body. The lifting mechanism oil cylinder is electrically connected to the controller. One end of it is fixed to the chassis, and the other end is connected to the scissor-type lifting mechanism. The multi-person working platform is installed on the scissor-type lifting mechanism, and the controller controls the lifting mechanism oil cylinder to drive the scissor-type lifting mechanism to drive the multi-person working platform to lift.

4. The multi-station walnut pruning vehicle according to claim 3, wherein: The scissor-type lifting mechanism adopts a two-stage scissor-type lifting mechanism.

5. The multi-station walnut pruning vehicle according to claim 3, wherein: A plurality of limit supports for controlling the contraction position of the scissor-type lifting mechanism are arranged on the chassis.

6. The multi-station walnut pruning vehicle according to claim 3, wherein: A plurality of ground support mechanisms for enhancing the stability of the trimming vehicle are arranged around the chassis. The ground support mechanism includes a ground support bracket and a ground support oil cylinder. The ground support oil cylinder is electrically connected to the controller. One end of it is connected to the chassis, and the other end is connected to the ground support bracket. An extension rod is arranged inside the ground support bracket. The controller controls the ground support oil cylinder to drive the ground support bracket to extend, then pulls out the extension rod inside the ground support bracket and supports it on the ground, and finally fixes the extension rod to the ground support bracket through a pin.

7. The multi-station walnut pruning vehicle according to claim 1, characterized in that: There are two lifting arm devices, symmetrically arranged on the left and right sides at the front end of the vehicle body, and a hanging basket is connected to the front end of each lifting arm device.

8. The multi-station walnut pruning vehicle according to claim 1, characterized in that: The multi-person operation platform includes a platform main body, platform extension plates, extension plate cylinders, and guardrails. There are two platform extension plates, symmetrically arranged on the left and right sides of the bottom of the platform main body. Each platform extension plate is equipped with two extension plate cylinders. The two extension plate cylinders are arranged in parallel and are respectively electrically connected to a controller. One end of the two extension plate cylinders is connected to the corresponding platform extension plate, and the other end is connected to the platform main body. The platform extension plates are driven by the two extension plate cylinders to move to the left or right side of the platform main body, thereby expanding the operation area of the multi-person operation platform. Guardrails are provided at the edges of the platform main body and the platform extension plates close to the outside.

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