Small electric motor-driven knapsack sugarcane harvester

Abstract

This invention proposes a small electric backpack-type sugarcane harvester, including a cutter head and power assembly, a shoulder belt assembly, a control assembly, and an energy assembly. During operation, a control switch and a speed control knob control the motor to provide power, which is directly transmitted to the blades. The operator holds the sugarcane with their left hand and uses a rigid operating lever in their right hand to perform root cutting. After root cutting, the left hand naturally pulls the sugarcane to an open area on the left. This invention uses an electric motor as the power source, allowing for real-time adjustment of the root cutting angle during the sugarcane root cutting process, maintaining stalk stability, reducing swaying, and improving cutting efficiency. It also considers ergonomics to ensure working comfort, improve machine stability, and reduce labor intensity, providing a new solution for mechanized sugarcane harvesting. Furthermore, it incorporates a modular assembly design, allowing for the selection and assembly of suitable modules according to local conditions.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery and equipment technology, specifically relating to a small electric backpack sugarcane harvester. Background Technology

[0002] Existing research on backpack-type sugarcane harvesters mainly focuses on the design of backpack-type electric sugarcane harvesters, with the main research content being the design of the cutter head structure.

[0003] The backpack electric sugarcane harvester patent proposed by Cai Weijun et al. (CN202222846342.8) mainly fixes the cutting disc, ensures safety through the design of the first and second motors, and improves the stability of battery fixation by designing pads and sliding grooves.

[0004] The patent for a backpack-type electric sugarcane harvester proposed by Fang Jianyu et al. (CN202121111378.0) optimizes the backpack frame structure, reduces the risk of burns, and improves the safety of the cutting process through the design of the protective cover for the cutting disc.

[0005] The patent for a backpack electric sugarcane harvester proposed by Wenming Fu et al. (CN202020504926.5) mainly focuses on the design of the blade harvesting mechanism. It harvests sugarcane by rapidly rotating the cutting blade and cuts the sugarcane roots by rotating the arc blade, thereby reducing the workload of the planting personnel.

[0006] Existing backpack-type electric sugarcane harvesters are powered by gasoline, with the engine drive shaft rotating the cutter head. This necessitates a flexible shaft and operating lever between the engine and the cutter head, increasing the overall weight and making them unsuitable for prolonged harvesting operations. Furthermore, current technology lacks a targeted design and development based on the manual harvesting process, sugarcane field terrain, and the physical characteristics of sugarcane. It lacks an orderly clearing function, failing to ensure effective stacking and bundling of sugarcane after root cutting. The complex and harsh environment of sugarcane fields, with its undulating terrain, makes real-time adjustment of the sugarcane root cutting angle impossible. The stability of the sugarcane stalks cannot be guaranteed during cutting, resulting in low cutting efficiency. The harvester design does not consider ergonomics, failing to guarantee working comfort and leading to high labor intensity. Utility Model Content

[0007] In view of this, this utility model addresses the current situation in Yunnan and other regions where sugarcane harvesting lacks efficient and suitable machinery, resulting in high labor intensity and low work efficiency due to manual harvesting. This utility model aims to design a small, electric backpack-type sugarcane harvester. Using an electric motor as the power source, it can adjust the root-cutting angle in real time during the sugarcane root-cutting process, maintaining stalk stability, reducing swaying, and improving cutting efficiency. Simultaneously, it considers ergonomics to ensure working comfort, improve machine stability, and reduce labor intensity, providing a new solution for mechanized sugarcane harvesting. Furthermore, it incorporates a modular assembly design, allowing for the selection and assembly of suitable modules based on local conditions.

[0008] This utility model includes a cutter head and power assembly, a carrying strap assembly, a control assembly, and an energy assembly. The cutter head and power assembly include a cutting section and a power section. The cutting section is located at the front end of the harvester and is fixedly installed with the power section, which provides power to the cutting section. The control assembly includes a control section for controlling the cutter head and power assembly. The cutter head and power assembly are engaged with a rigid operating lever of the control assembly. The carrying strap assembly is used for manually carrying the harvester and is engaged with the rigid operating lever of the control assembly. The energy assembly provides energy to the cutter head, power assembly, and control assembly and is connected to the control section of the control assembly. During operation, the operator holds the sugarcane with their left hand and uses their right hand to hold the rigid operating lever to cut the sugarcane at the root. After the root cut, the left hand naturally moves the sugarcane to the open ground on the left.

[0009] Based on the above scheme, the cutting part includes a limiting frame, a cutting blade, and a support frame; the power part includes a motor; the limiting frame is V-shaped and is installed on a rigid operating rod by a clamp; after the cutting blade contacts the sugarcane, the cutter head and power assembly shift to one side, so that the sugarcane is blocked by the limiting frame and cannot move, thus realizing the cutting blade cutting the sugarcane by rotation; the cutting blade is a serrated circular blade, which cuts the sugarcane stalk by rotation; one end of the support frame is U-shaped and fixedly connected to the limiting frame, and the other end is a smooth arc shape.

[0010] Based on the above scheme, a sled-type sliding plate that contacts the sugarcane field is installed below the support frame.

[0011] Based on the above solution, the cutter head and power assembly also include a protective cover, which is fixedly connected to the rigid transmission component.

[0012] Based on the above solution, the shoulder strap assembly includes a fixing ring, a swivel buckle, a shoulder strap, a shoulder pad, and an adjustable buckle; the shoulder strap wraps around the person's shoulder, with both ends connected to the swivel buckle and the rigid operating rod; the adjustable buckle is used to adjust the suspension height of the rigid operating rod; the swivel buckle can quickly engage or disengage with two fixing rings located at different positions on the rigid operating rod, and can rotate relative to each other; the fixing rings are fixed to the rigid operating rod and are used to suspend the rigid operating rod.

[0013] Based on the above scheme, the shoulder pad is an anti-gravity shoulder pad.

[0014] Based on the above scheme, the control assembly includes a rigid operating lever, a control console, a motor switch, and a motor speed control knob. The rigid operating lever is connected to the control console, which is equipped with a motor switch and a motor speed control knob. The output end of the control console is connected to the cutter head and the power assembly. The power unit of the cutter head and the power assembly is controlled by the motor switch and the motor speed control knob. During operation, the operator holds the rigid operating lever with one hand to move the cutter head and the power assembly.

[0015] Based on the above scheme, the control assembly also includes a battery compartment, a charging cable, and a rechargeable battery; the rechargeable battery is connected to the battery compartment to supply power to the overall system; when the power is insufficient, the rechargeable battery is connected to the charging cable to replenish energy through the power assembly.

[0016] Based on the above solution, the powertrain includes a shoulder strap, a back frame, and a battery; the shoulder strap is connected to the back frame so that it can be worn on a person; the back frame can carry the battery.

[0017] Based on the above solution, the shoulder strap is equipped with shoulder pads.

[0018] The beneficial effects of this utility model are:

[0019] (1) The blade and power assembly proposed in this utility model can adjust the root cutting angle in real time during the sugarcane root cutting process, maintain the stability of the stalk, reduce shaking, and improve cutting efficiency.

[0020] (2) The structure proposed in this utility model can be modularly improved to adapt to different sugarcane growing environments, so that users can easily use the machine and improve work efficiency.

[0021] (3) The shoulder strap assembly proposed in this utility model can be suspended at two points, which can improve the stability and ease of operation of the electric backpack sugarcane harvester when in use. Attached Figure Description

[0022] The present invention includes the following figures:

[0023] Figure 1 Schematic diagram of the overall structure of a backpack-type sugarcane harvester;

[0024] Figure 2 Schematic diagram of the cutter head and powertrain structure;

[0025] Figure 3 Schematic diagram of the shoulder strap assembly;

[0026] Figure 4 Schematic diagram of the control assembly;

[0027] Figure 5 Schematic diagram of the powertrain structure.

[0028] Reference numerals: 1: Cutter head and power assembly; 2: Shoulder strap assembly; 3: Control assembly; 4: Energy assembly; 101: Limiting frame; 102: Cutting blade; 103: Motor; 104: Protective cover; 105: Support frame; 201: Fixing ring; 202: Rotary shaft buckle; 203: First shoulder strap; 204: Shoulder pad; 205: Adjustable buckle; 301: Rigid operating lever; 302: Battery compartment; 303: Charging cable; 304: Rechargeable battery; 305: Control console; 306: Motor switch; 307: Motor speed control knob; 401: Second shoulder strap; 402: Back frame; 403: Battery. Detailed Implementation

[0029] To make the objectives, advantages and features of this utility model more apparent, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments.

[0030] like Figure 1 As shown, a small electric backpack sugarcane harvester mainly includes a cutter head and power assembly 1, a shoulder belt assembly 2, a control assembly 3, and an energy assembly 4. During operation, the motor is controlled by a control switch and a speed control knob to provide power. The power is directly transmitted from the motor to the blades. The operator holds the sugarcane with their left hand and uses a rigid operating lever in their right hand to cut the sugarcane at the root. After the root is cut, the left hand naturally pulls the sugarcane to the open ground on the left.

[0031] Specifically, such as Figure 2As shown, the cutter head and power assembly 1 includes a limiting frame 101, a cutting blade 102, a motor 103, a protective cover 104, and a support frame 105. The limiting frame 101 is V-shaped and is mounted on the rigid operating rod 301 via a clamp. After the cutting blade 102 contacts the sugarcane, the interaction between the moving cutting blade 102 and the stationary sugarcane causes the cutter head and power assembly 1 to shift to one side. The sugarcane is blocked by the limiting frame 101 and cannot move, allowing the rotating cutting blade 102 to cut the sugarcane. This ensures the stability of the cutter head and power assembly 1 during sugarcane cutting, reduces shaking, and guarantees cutting efficiency. The cutting blade 102 is a serrated circular blade, which can efficiently cut the sugarcane stalk by rotation. One end of the support frame 105 is U-shaped and fixed to the limiting frame 101, while the other end is a smooth arc shape. A sled-like sliding plate underneath the frame contacts the sugarcane field, allowing for smooth movement of the cutter head and power assembly 1 within the field. During cutting, it provides support and adjusts the cutting angle. The protective cover 104 is fixedly mounted on a rigid operating rod to prevent injury from flying stones and debris during cutting, thus improving work safety.

[0032] like Figure 3 As shown, the shoulder strap assembly 2 includes a fixing ring 201, a swivel buckle 202, a first shoulder strap 203, a shoulder pad 204, and an adjustable buckle 205. The first shoulder strap 203 wraps around the person's shoulder, and its two ends are connected to the swivel buckle 202 respectively, allowing it to connect to the operating lever 301. The adjustable buckle facilitates connection and disconnection for easy wearing. The shoulder pad 204 is an anti-gravity shoulder pad, which reduces shoulder pressure and facilitates long-term work. The adjustable buckle 205 adjusts the suspension height of the rigid operating lever 301 to accommodate different body heights. The swivel buckle 202 can quickly engage or disengage from the two fixing rings 201 located at different positions on the operating lever 301, and can also rotate relative to each other to prevent the shoulder strap from twisting. The fixing rings 201 are fixed at appropriate positions on the rigid operating lever 301 for easy suspension of the rigid operating lever 301, and their positions can be adjusted to accommodate different individuals. During this process, the two-point suspension of the straps creates a relatively stable state when the worker carries the machine, reducing labor intensity. When workers take short breaks, the machine can remain stable in its previous state without needing to be put down, reducing the time spent on putting the machine back on and back, and improving efficiency.

[0033] like Figure 4As shown, the control assembly 3 includes a rigid operating lever 301, a battery compartment 302, a charging cable 303, a rechargeable battery 304, a control console 305, a motor switch 306, and a motor speed control knob 307. The rigid operating lever 301 is connected to the control console 305, which is equipped with the motor switch 306 and the motor speed control knob 307. The output of the control console 305 is connected to the cutter head and power assembly 1. The motor switch 306 and the motor speed control knob 307 control the rotation of the cutter head and the motor 103 of the power assembly 1, causing the cutting blade 102 to rotate. The rechargeable battery 304 is connected to the battery compartment 302 to supply power to the entire system. When the power is insufficient, the rechargeable battery 304 is connected to the charging cable 303 for energy replenishment through the battery 403 in the energy assembly 4. The operator holds the rigid operating lever 301 with one hand to move the cutter head and power assembly 1, facilitating alignment with the cutting target.

[0034] like Figure 5 As shown, the powertrain 4 comprises a second shoulder strap 401, a back frame 402, and a battery 403. The shoulder strap 401 is connected to the back armor 402, allowing it to be worn on the body. The back frame 402 can carry the battery 403, allowing the battery to be easily moved with the operator while charging the rechargeable battery 302 via the charging cable 305. The shoulder strap 401 has shoulder pads to evenly distribute pressure and improve comfort.

[0035] The working process of the small electric backpack sugarcane harvester is as follows: The operator grabs the rigid operating rod 301 from the handlebar position. The first shoulder strap 203 is wrapped around the shoulder. The height and position of the rigid operating rod 301 are adjusted by the adjustable buckle 205 and the fixing rings 201 at both ends, so that the cutter head and power assembly 1 are suspended from the rigid operating rod 301. At the same time, since the shoulder strap is a two-point suspension, the machine can reach a stable state. The operator can prepare in advance. When arriving at the work site, the right hand holds the rigid operating rod 301 to a comfortable position, and the left hand holds the sugarcane stalk. During harvesting, the motor 103 is started via the motor switch 304, and the motor speed can be adjusted by the motor speed control knob 307. The height of the rigid operating lever 301 is adjusted with the right hand so that the support frame 105 contacts the sugarcane field for support. At the same time, the cutting angle of the sugarcane stalk is adjusted, and the cutting blade 102 contacts the sugarcane. Under the action of the limiting frame 101, the sugarcane remains stable and is cut quickly. At this time, the right hand swings the operating lever 301 to the left, and the sugarcane tilts to one side under the action of the limiting frame 101, making it easier to pile and bundle later. Then, the right hand holds the rigid operating lever 301 and adjusts its height. With the support of the body, the cutter head and power assembly 1 are suspended from the rigid operating lever 301, and the person walks to the next sugarcane to be cut.

[0036] It should be noted that if a certain module is not needed under certain conditions, it can be removed to improve convenience.

[0037] The above embodiments have provided a detailed description of the technical solution of this utility model. Obviously, this utility model is not limited to the described embodiments. Based on the embodiments of this utility model, those skilled in the art can make various modifications, but any modifications that are equivalent or similar to this utility model fall within the protection scope of this utility model.

[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A small electric backpack-type sugarcane harvester, characterized in that, Includes cutter head and power assembly (1), belt assembly (2), control assembly (3), and energy assembly (4); The cutter head and power assembly (1) include a cutting section and a power section; The cutting section is located at the front end of the harvester and is fixedly installed with the power unit, which provides power to the cutting section. The control assembly (3) includes a control unit for controlling the cutter head and the power assembly (1); The cutter head and power assembly (1) are engaged with the rigid operating lever (301) of the control assembly (3); The shoulder strap assembly (2) is used for manually carrying the harvester and is engaged with the rigid operating lever (301) of the control assembly (3); The energy assembly (4) is used to provide energy to the cutter head and power assembly (1) and the control assembly (3), and is connected to the control unit of the control assembly (3); During the work, the operator holds the sugarcane with their left hand and uses a rigid operating rod in their right hand to cut the sugarcane at the root. After the root is cut, the left hand then moves the sugarcane to the open ground on the left.

2. The small electric backpack sugarcane harvester according to claim 1, characterized in that, The cutting unit includes a limiting frame (101), a cutting blade (102), and a support frame (105); the power unit includes a motor (103). The limiting frame (101) is V-shaped and is installed on the rigid operating rod (301) by clamps. After the cutting blade (102) comes into contact with the sugarcane, the cutter head and power assembly (1) shift to one side, so that the sugarcane is blocked by the limiting frame (101) and cannot move, so that the cutting blade (102) with rotational motion cuts the sugarcane. The cutting blade (102) is a serrated circular blade that cuts sugarcane stalks by rotating; One end of the support frame (105) is U-shaped and fixedly connected to the limiting frame (101), while the other end is a smooth arc shape.

3. The small electric backpack sugarcane harvester according to claim 2, characterized in that, A sled-type slide that contacts the sugarcane field is provided below the support frame (105).

4. The small electric backpack sugarcane harvester according to any one of claims 2 or 3, characterized in that, The cutter head and power assembly (1) also includes a protective cover (104), which is fixedly connected to the rigid operating lever (301).

5. The small electric backpack sugarcane harvester according to claim 1, characterized in that, The shoulder strap assembly (2) includes a fixing ring (201), a pivot buckle (202), a first shoulder strap (203), a shoulder pad (204), and an adjustable buckle (205); The first shoulder strap (203) wraps around the person's shoulder, and its two ends are respectively connected to the pivot buckle (202) and connected to the rigid operating lever (301); The adjustable buckle (205) is used to adjust the suspension height of the rigid operating lever (301); The rotating shaft buckle (202) can quickly engage or disengage with two fixed rings (201) located at different positions on the rigid operating lever (301), and can rotate relative to each other; The fixing ring (201) is fixed on the rigid operating rod (301) and is used to suspend the rigid operating rod (301).

6. The small electric backpack sugarcane harvester according to claim 5, characterized in that, The shoulder pad (204) is an anti-gravity shoulder pad.

7. The small electric backpack sugarcane harvester according to claim 1, characterized in that, The control assembly (3) includes a rigid operating lever (301), a control console (305), a motor switch (306), and a motor speed control knob (307). The rigid operating lever (301) is connected to the control console (305). The control console (305) is equipped with a motor switch (306) and a motor speed control knob (307). The output end of the control console (305) is connected to the cutter head and power assembly (1). The power unit of the cutter head and power assembly (1) is controlled by the motor switch (306) and the motor speed control knob (307). During operation, the operator holds a rigid operating lever (301) with one hand to move the cutter head and power assembly (1).

8. The small electric backpack sugarcane harvester according to claim 7, characterized in that, The control assembly (3) also includes a battery compartment (302), a charging cable (303), and a rechargeable battery (304). The rechargeable battery (304) is connected to the battery compartment (302) to supply power to the main system; when the power is insufficient, the rechargeable battery (304) is connected to the charging cable (303) to replenish energy through the power assembly (4).

9. The small electric backpack sugarcane harvester according to claim 1, characterized in that, The powertrain (4) includes a second shoulder strap (401), a back frame (402), and a battery (403). The second shoulder strap (401) is connected to the back frame (402) so that it can be worn on a person; the back frame (402) can carry a battery (403).

10. The small electric backpack sugarcane harvester according to claim 9, characterized in that, The second shoulder strap (401) has a shoulder pad.

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