Crop pickup device

Abstract

The utility model particularly relates to a crop picking device which comprises a left supporting frame and a right supporting frame which are symmetrically distributed, a connecting cylinder is arranged at the front end of each supporting frame, a transmission rod is rotatably arranged in each connecting cylinder, a power transmission mechanism is arranged in the middle of each transmission rod, and each power transmission mechanism drives the corresponding transmission rod to rotate. The two ends of the transmission rod rotatably penetrate through the supporting frames, driving wheels are fixedly arranged at the two ends of the transmission rod, and a driving shaft and a driven shaft are rotatably arranged on the lower portions of the two supporting frames. According to the crop picking device, crops can be picked up, the picked crops can be collected into the collecting hopper, the roller capable of being adjusted up and down is arranged so that the inclination degree of the screening belt relative to the ground can be adjusted, and the situation that the crops roll down forwards when the crops are screened due to the large inclination degree is avoided; meanwhile, a spring is arranged, so that vertical jolting of the picking device can be relieved when the whole device moves forwards and encounters the uneven ground, and the situation that crops vertically vibrate and roll to the front shovel forwards due to jolting is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural planting equipment, and in particular relates to a crop picking device. Background Art

[0002] Currently, crops are typically harvested in stages. The first step involves digging and separating the crops from the soil. Mechanical digging and separation are completed, and the crops are laid out on the ground in strips. The second step is picking and bagging. After the crops are aired for a period of time, they are manually picked and bagged. However, manual crop picking is inefficient, time-consuming, labor-intensive, and has high production costs. For example, picking crops such as potatoes and sweet potatoes is extremely time-consuming and labor-intensive. To address these technical issues, there is a need for agricultural machinery with a picking function.

[0003] For example, a picking device with patent application number CN202121580923.0 discloses "including: a frame; a picking shovel assembly, connected to one end of the frame; a thumbwheel assembly, rotatably connected to the frame, located above the picking shovel assembly, the thumbwheel assembly including: a support plate, a connecting shaft and a dial plate, both ends of the connecting shaft are passed through the support plate, and the dial plate is sleeved on the connecting shaft; a conveying assembly, connected to the frame, located behind the thumbwheel assembly. With such a configuration, in the process of picking up crops, by picking up the crops onto the picking shovel assembly, and the thumbwheel assembly rotates, the dial plate dials the crops to the conveying assembly. In this process, the crops are picked up The crops are further separated from the soil and transported to the rear for bagging via the conveyor assembly. This allows for unmanned picking, improves work efficiency, and reduces labor intensity and costs. While the above structure can pick up crops, due to the gap between the front shovel and the conveyor assembly, the crops need to be moved onto the conveyor assembly using a paddle, which can easily scratch the surface of the crops when the paddle is in operation. Furthermore, the rollers at the rear end of the pick-up area lack a structure to prevent bumps, which can result in poor crop transport on uneven surfaces (i.e., the crops are moved toward the front shovel due to bumps).

[0004] In order to solve the above problems, we provide a crop picking device that can pick up crops while avoiding damage to the crops during the picking process. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a crop picking device.

[0006] The object of the utility model is achieved as follows: a crop picking device comprises two symmetrically distributed support frames on the left and right, a connecting cylinder is provided at the front end of the support frame, a transmission rod is rotatably provided in the connecting cylinder, a power transmission mechanism is provided in the middle of the transmission rod, and the power transmission mechanism drives the transmission rod to rotate; both ends of the transmission rod can rotatably pass through the support frame, and driving wheels are fixedly provided at both ends of the transmission rod, and a driving shaft and a driven shaft are rotatably provided at the lower parts of the two support frames, and both ends of the driving shaft can rotatably pass through the support frame, and driven wheels are provided at the left and right ends of the driving shaft, a chain is provided between the driving wheel and the driven wheel on the same side, the driving wheel drives the driven wheel to rotate, and a screening belt is provided between the driving shaft and the driven shaft, the screening belt includes a connecting belt, and the left and right ends of the driving shaft and the driven shaft are respectively rotatably connected with a connecting belt, and a plurality of screening rods are evenly distributed between the two connecting belts.

[0007] Furthermore, a front shovel is fixedly provided at the lower front end of the two symmetrically distributed support frames.

[0008] Furthermore, the front shovel is tilted toward the front and downward.

[0009] Furthermore, a fixing rod is provided at the rear end of the front shovel, and a plurality of baffles are evenly distributed on the fixing rod.

[0010] Furthermore, the front end of the baffle is connected to the fixing rod, and the rear end of the baffle is located above the connecting belt.

[0011] Furthermore, a roller is provided at the rear end of each support frame.

[0012] When the utility model is used, the device is connected to an agricultural machinery carrier, and the connection method is not limited and is the existing technology; power is input into the power transmission mechanism, and the power transmission mechanism is the existing technology and is not technically limited and can drive the transmission rod to rotate; when the transmission rod rotates, it drives the connecting belt to rotate.

[0013] The agricultural vehicle's driving device moves forward, adjusting the depth of the front shovel below the ground as needed. The connection structure for the depth of the front shovel below the ground is conventional and not technically limited, allowing for the adoption of appropriate technical solutions as needed. As the front shovel moves forward, it pulls crops (sweet potatoes, etc.) on the ground into the rear of the front shovel. The crops and soil pass through a baffle and enter above the sieve bars connected to the connecting belt. The baffle serves to guide the crops, which are accumulated by the soil and crops, into the screening belt. Furthermore, because the upper end of the baffle is located above the screening belt, it prevents clods of crops and soil from moving downward and falling back onto the front shovel. These clods and other fine impurities leak through the gaps between the sieve bars. The screened crops enter a collection hopper.

[0014] The inclination of the screening belt relative to the ground can be adjusted as needed. Rotating the threaded rod moves the connecting block up and down, which in turn drives the spring, which in turn drives the lifting rod up and down, adjusting the distance between the roller and the rear end of the screening belt, and thus adjusting the inclination of the screening belt relative to the ground. A spring is also provided to mitigate the up-and-down jolting of the picking mechanism when the ground is uneven, preventing the crops from vibrating up and down and rolling forward onto the front shovel.

[0015] Beneficial effects: The present application can realize the picking of crops, and at the same time can collect the picked crops into the collecting bucket, and is provided with rollers that can be adjusted up and down, thereby adjusting the inclination of the screening belt relative to the ground, to avoid the crops rolling forward when screening crops due to a large inclination; at the same time, a spring is provided to slow down the up and down bumps of the picking device when encountering uneven ground when the entire device moves forward, to avoid the crops from vibrating up and down due to the bumps, and rolling forward to the front shovel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0018] Figure 3 It is a schematic diagram of the local structure of the utility model.

[0019] Figure 4 It is a partial structural sectional view of the utility model.

[0020] Description of reference numerals:

[0021] 1. Support frame, 2. Connecting cylinder, 3. Front shovel, 4. Baffle, 5. Driving wheel, 6. Chain, 7. Driven wheel, 8. Roller, 9. Fixed cylinder, 10. Lifting rod, 11. Collecting bucket, 12. Driving shaft, 13. Screen rod, 14. Spring, 15. Connecting block, 16. Threaded rod. DETAILED DESCRIPTION

[0022] Example 1, as Figure 1-4, the purpose of the utility model is achieved as follows: a crop picking device, comprising two symmetrically distributed support frames 1 on the left and right, a connecting tube 2 is provided at the front end of the support frame 1, a transmission rod is rotatably provided in the connecting tube 2, a power transmission mechanism is provided in the middle of the transmission rod, and the power transmission mechanism drives the transmission rod to rotate; the transmission rod passes through the support frame 1 rotatably at both ends, and a driving wheel 5 is fixedly provided at both ends of the transmission rod, a driving shaft 12 and a driven shaft are rotatably provided at the lower part of the two support frames 1, and the driving shaft 12 passes through the support frame 1 rotatably at both ends, and a driven wheel 7 is provided at the left and right ends of the driving shaft 12, a chain 6 is provided between the driving wheel 5 and the driven wheel 7 on the same side, the driving wheel 5 drives the driven wheel 7 to rotate, and a screening belt is provided between the driving shaft 12 and the driven shaft, and the screening belt includes a connecting belt, and the driving shaft 12 and the driven shaft are rotatably connected at the left and right ends respectively with a connecting belt, and a plurality of screening rods 13 are evenly distributed between the two connecting belts.

[0023] A front shovel 3 is fixedly provided at the lower front end of the two symmetrically distributed support frames 1. The front shovel 3 is a structure with a front side tilted downward, which is convenient for scooping up soil and crops; the front shovel 3 is tilted toward the front side and downward.

[0024] The rear end of the front shovel 3 is equipped with a fixed rod, on which are evenly distributed multiple baffles 4. The front ends of the baffles 4 are connected to the fixed rod, and the rear ends of the baffles 4 are located above the connecting belt. The upper surfaces of the front ends of the baffles 4 are flush with the upper surfaces of the rear ends of the front shovel 3. The baffles 4 can guide the crops and soil scooped up by the front shovel 3 into the screening belt at the rear. At the same time, the rear ends of the baffles 4 are located above the connecting belt to prevent the crops from rolling back to the front shovel 3.

[0025] A roller 8 is provided at the rear end of each support frame 1. The roller 8 can support and move the rear end of the picking device; and cooperate with the carrier to realize the forward movement of the entire device.

[0026] A fixed cylinder 9 is provided between the support frame 1 and the roller 8. The fixed cylinder 9 is fixedly connected to the support frame 1. A lifting rod 10 is provided at the lower end of the fixed cylinder 9 so as to be movable up and down. The lower end of the lifting rod 10 is rotatably connected to the roller 8. A threaded rod 16 is passed through the rotatable thread at the upper end of the fixed cylinder 9. The lower end of the threaded rod 16 is rotatably connected to a connecting block 15. A spring 14 is fixedly provided at the lower end of the connecting block 15. The lower end of the spring 14 is fixedly connected to the upper end of the lifting rod 10.

[0027] A collecting hopper 11 is provided between the rear ends of the two support frames 1 and is located below the connecting belt. The center of the collecting hopper 11 is recessed downward, allowing the collected crops to be collected in the hopper 11. Alternatively, a discharge port can be provided at the rear end of the center of the collecting hopper 11 to discharge the collected crops onto the ground below the center of the collecting hopper 11.

[0028] When the utility model is used, the device is connected to an agricultural machinery carrier, and the connection method is not limited and is the existing technology; power is input into the power transmission mechanism, and the power transmission mechanism is the existing technology and is not technically limited and can drive the transmission rod to rotate; when the transmission rod rotates, it drives the connecting belt to rotate.

[0029] The agricultural vehicle's driving mechanism moves forward, adjusting the depth of the front shovel 3 below the ground as needed. The connection structure for the depth of the front shovel 3 below the ground is conventional and not technically limited; suitable technical solutions can be adopted as needed. As the front shovel 3 moves forward, it pulls crops (sweet potatoes, etc.) on the ground into the rear of the front shovel 3. The crops and soil pass through the baffle 4 and enter above the sieve bars 13 connected to the connecting belt. The baffle 4 functions to guide the crops, which are piled up by the soil and crops, into the sieve belt. Furthermore, because the upper end of the baffle 4 is above the sieve belt, it prevents clods of crops and soil from moving downward and falling back onto the front shovel 3. These clods and other fine impurities leak through the gaps between the sieve bars 13. The sieved crops enter the collection hopper 11.

[0030] The inclination of the screening belt relative to the ground can be adjusted as needed. Specifically, by rotating the threaded rod 16, the connecting block 15 moves up and down, which in turn drives the spring 14 up and down, and thus the lifting rod 10 up and down, adjusting the distance between the roller 8 and the rear end of the screening belt, thereby adjusting the inclination of the screening belt relative to the ground. The spring 14 also reduces the up and down vibration of the picking device when the ground is uneven, preventing the crops from vibrating up and down and rolling forward to the front shovel 3.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crop picking device comprising two symmetrically distributed support frames on the left and right, characterized in that: The front end of the support frame is provided with a connecting cylinder, and a transmission rod is rotatably provided in the connecting cylinder, and a power transmission mechanism is provided in the middle of the transmission rod, and the power transmission mechanism drives the transmission rod to rotate; both ends of the transmission rod can rotatably pass through the support frame, and driving wheels are fixedly provided at both ends of the transmission rod, and a driving shaft and a driven shaft are rotatably provided at the lower part of the two support frames, and both ends of the driving shaft rotatably pass through the support frame, and driven wheels are provided at the left and right ends of the driving shaft, and a chain is provided between the driving wheel and the driven wheel on the same side, and the driving wheel drives the driven wheel to rotate, and a screening belt is provided between the driving shaft and the driven shaft, and the screening belt includes a connecting belt, and the left and right ends of the driving shaft and the driven shaft are rotatably connected with a connecting belt, and a plurality of screen rods are evenly distributed between the two connecting belts; A front shovel is fixedly provided at the lower front end of the two symmetrically distributed support frames; The front shovel is tilted downward toward the front; The rear end of the front shovel is provided with a fixing rod, and a plurality of baffles are evenly distributed on the fixing rod; The front upper surface of the baffle is flush with the rear upper surface of the front shovel. The baffle can guide the crops and soil scooped up by the front shovel into the rear screening belt. At the same time, the rear end of the baffle is located above the connecting belt to prevent the crops from rolling down to the front shovel position again.

2. The crop picking device according to claim 1, characterized in that: The front end of the baffle is connected to the fixing rod, and the rear end of the baffle is located above the connecting belt.

3. The crop picking device according to claim 1, characterized in that: A roller is provided at the rear end of each support frame.

4. The crop picking device according to claim 3, characterized in that: A fixing cylinder is provided between the support frame and the roller, the fixing cylinder is fixedly connected to the support frame, a lifting rod is provided at the lower end of the fixing cylinder which can move up and down, and the lower end of the lifting rod is rotatably connected to the roller.

5. The crop picking device according to claim 4, characterized in that: The rotatable thread on the upper end of the fixing cylinder passes through a threaded rod, the lower end of the threaded rod is rotatably connected to a connecting block, the lower end of the connecting block is fixedly provided with a spring, and the lower end of the spring is fixedly connected to the upper end of the lifting rod.

6. The crop picking device according to claim 1, characterized in that: A collecting bucket is provided between the rear ends of the two support frames and is located below the connecting belt.

7. The crop picking device according to claim 6, characterized in that: The middle part of the collecting bucket is concave downwards.

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