Backpack type sugarcane harvester

Abstract

The utility model provides a backpack type sugarcane harvester which comprises a cutter head assembly, a strap assembly, a transmission part assembly and a power assembly. During working, power is provided by the engine and transmitted to the blade through the transmission part assembly, a person holds a sugarcane with the left hand and holds the rigid transmission part with the right hand to perform root cutting on the sugarcane, and the left hand pokes down the sugarcane to one side after root cutting. The root cutting and orderly pulling-down functions are considered, the root cutting angle can be adjusted in real time in the sugarcane root cutting process, stalks are kept stable, shaking is reduced, the cutting efficiency is improved, meanwhile, man-machine engineering is considered, work comfort is guaranteed, labor intensity is reduced, and a new solution is provided for sugarcane mechanical harvesting.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of agricultural machinery and equipment, and particularly relates to a backpack type sugarcane harvester. BACKGROUND

[0002] Sugarcane is an important economic crop in China and is the main raw material for producing sugar. China is a major sugarcane planting country, mainly in Guangxi, Yunnan, Guangdong and Hainan, with a planting area ranking third in the world after Brazil and India. At present, domestic sugarcane is mainly harvested by manual cutting, and the yield of sugarcane combine harvester in China in 2023 is only 3.4%. In particular, in Yunnan, the landform is mainly hilly and mountainous, and large-scale combined harvesting machinery is difficult to travel to the field, and the terrain is complex, which does not meet the operating conditions of large-scale combined harvesting machinery. Harvesting relies entirely on manual labor, which is labor-intensive and inefficient, which is the main problem at present. The process of manual harvesting of sugarcane is as follows: holding a cutting knife to cut the roots of sugarcane, and then manually stacking and bundling the sugarcane.

[0003] The existing technology mainly focuses on the design of backpack electric sugarcane harvesters, and the research content mainly includes the design of the cutter head structure.

[0004] Cai Weijun et al. (CN202222846342.8) proposed a backpack electric sugarcane harvester patent mainly for fixing the cutting cutter, which ensures safety through the design of the first and second motors, and improves the stability of battery fixation by designing pads and sliding grooves.

[0005] Fang Jianyu et al. (CN202121111378.0) proposed a backpack electric sugarcane harvester patent that optimizes the backrest structure, reduces the risk of burns, and improves the safety of the cutting process through the design of the cutting cutter protection cover.

[0006] Wenming et al. (CN202020504926.5) proposed a backpack electric sugarcane harvester patent mainly for the design of the cutter harvesting mechanism, which cuts sugarcane through the rapid rotation of the cutting knife and cuts off the roots of sugarcane through the rotation of the arc-shaped knife, reducing the workload of the planting personnel.

[0007] The back-mounted electric sugarcane harvester is generally powered by a battery. The battery has a small power supply and a short endurance time, needs to be frequently charged and discharged, has a low operation efficiency, and is not suitable for long-time harvesting operation. In addition, the prior art does not design and develop the harvester based on the manual harvesting process, the sugarcane field terrain and the physical characteristics of the sugarcane, lacks an orderly pulling and falling function, and cannot guarantee the effective stacking and baling of the sugarcane after root cutting. The sugarcane field environment is complex and harsh, and the terrain undulates, so that the root cutting angle of the sugarcane cannot be adjusted in real time. The stability of the sugarcane stalk cannot be guaranteed during the cutting process, and the cutting efficiency is low. The design of the harvester does not consider ergonomics, cannot guarantee the work comfort, and has a large labor intensity. SUMMARY

[0008] Therefore, the utility model refers to the manual harvesting process, and considers the root cutting and orderly pulling and falling functions, so that the labor intensity can be effectively reduced.

[0009] The utility model discloses the contents of: a back-mounted sugarcane harvester, including cutterhead assembly, harness assembly, transmission part assembly, power assembly,

[0010] The cutterhead assembly includes a cutting blade and a frame body, is used for cutting sugarcane, and is arranged at one end of the transmission part assembly.

[0011] The power generated by the power assembly is transmitted to the cutterhead assembly by the transmission part assembly and is arranged at the other end of the transmission part assembly.

[0012] The harness assembly is used for manually carrying the harvester and is arranged on the rigid transmission part of the transmission part assembly.

[0013] When working, the worker holds the sugarcane with the left hand, holds the rigid transmission part with the right hand to cut the root of the sugarcane, and then pulls and falls the sugarcane to one side with the left hand after the root cutting.

[0014] On the basis of the above scheme, the cutterhead assembly includes a limiting frame, a cutting blade and a support frame.

[0015] The limiting frame is V-shaped, the V-shaped opening of the limiting frame faces the harvesting object, and the limiting frame is installed on the rigid transmission part through a clamp.

[0016] One end of the support frame is U-shaped, and the closed portion of the U-shaped portion is fixedly connected with the V-shaped opening of the limiting frame.

[0017] The closed portion of the U-shaped portion is in a smooth arc shape.

[0018] On the basis of the above scheme, the cutting blade is a sawtooth-shaped circular blade.

[0019] On the basis of the above scheme, the cutterhead assembly includes a protective cover, and the protective cover is installed on the rigid transmission part through a clamp.

[0020] On the basis of the above scheme, the shoulder strap assembly comprises a shoulder strap, a shoulder pad, a quick socket, an adjustable buckle, a rotating shaft buckle and a fixing ring.

[0021] The shoulder strap passes around the shoulder of a person and is connected or disconnected through the quick socket.

[0022] The adjustable buckle can adjust the suspension height of the rigid transmission member and adapt to the needs of different body heights.

[0023] The rotating shaft buckle can be quickly connected or disconnected with the fixing ring and can rotate relatively to avoid the twisting of the shoulder strap under stress.

[0024] The fixing ring is fixed at a proper position of the rigid transmission member to facilitate the suspension of the rigid transmission member.

[0025] On the basis of the above scheme, the shoulder pad is an anti-gravity shoulder pad.

[0026] On the basis of the above scheme, the transmission member assembly comprises a rigid transmission member and a flexible transmission member.

[0027] The rigid transmission member and the flexible transmission member are connected through an outer tube, and the inner part of each of them contains a transmission soft shaft that can rotate independently.

[0028] The flexible transmission member is connected with the output end of the power assembly, the output end of the rigid transmission member is connected with the cutter head assembly, and the power of the power assembly drives the cutting blade to rotate through the transmission soft shafts in the flexible transmission member and the rigid transmission member.

[0029] On the basis of the above scheme, the power assembly comprises an engine, a speed reducer and a shoulder strap.

[0030] The engine provides power for driving the rotation of the cutting blade.

[0031] The speed reducer is installed at the output end of the engine.

[0032] The shoulder strap is provided with a back pad.

[0033] The back pad is fixedly connected with the engine and adopts a back-carrying form.

[0034] The utility model discloses the beneficial effects of:

[0035] (1) the cutter head assembly can adjust the root cutting angle in real time, maintain the stability of the stalk and reduce the shaking during the root cutting of sugarcane, and improve the cutting efficiency.

[0036] (2) the shoulder strap assembly can significantly improve the moving flexibility and portability of the rigid transmission member.

[0037] (3) This utility model proposes an engine as a power source, which overcomes the problems of short battery life and poor power in backpack electric sugarcane harvesters. It can operate for a long time and has strong power. The anti-gravity shoulder pad and reducer structure can effectively improve carrying comfort and reduce vibration. Attached Figure Description

[0038] The present invention includes the following figures:

[0039] Figure 1 Schematic diagram of the overall structure of a backpack-type sugarcane harvester;

[0040] Figure 2 Schematic diagram of the cutter head assembly;

[0041] Figure 3 Schematic diagram of the shoulder strap assembly;

[0042] Figure 4 Schematic diagram of the transmission assembly;

[0043] Figure 5 Powertrain structure diagram.

[0044] Reference numerals: 1: Cutter head assembly; 2: Shoulder strap assembly; 3: Transmission assembly; 4: Power assembly; 101: Limiting bracket; 102: Cutting blade; 103: Support frame; 104: Protective cover; 201: Shoulder strap; 202: Shoulder pad; 203: Quick-connect port; 204: Adjustable buckle; 205: Rotary shaft buckle; 206: Retaining ring; 301: Rigid transmission component; 302: Flexible transmission component; 401: Engine; 402: Reducer; 403: Shoulder strap; 404: Back pad. Detailed Implementation

[0045] To make the objectives, advantages and features of this utility model more apparent, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] like Figure 1 As shown, a backpack-type sugarcane harvester mainly includes a cutter head assembly 1, a shoulder belt assembly 2, a transmission assembly 3, and a power assembly 4. During operation, the engine provides power, which is transmitted to the blades through the transmission assembly. The operator holds the sugarcane with their left hand and uses the rigid transmission assembly in their right hand to cut the sugarcane at the root. After the root is cut, the left hand pushes the sugarcane to one side.

[0047] like Figure 2As shown, the cutter head assembly 1 includes a limiting frame 101, a cutting blade 102, a support frame 103, and a protective cover 104. The limiting frame 101 is in the shape of a "V" and is installed on the rigid transmission member 301 by a clamp. When the cutting blade 102 comes into contact with the sugarcane, the cutter head assembly 1 will deviate to one side due to the interaction between the moving cutting blade 102 and the stationary sugarcane. The sugarcane is blocked by the limiting frame 101 and cannot move, and the rotating cutting blade 102 cuts the sugarcane, ensuring the stability of the cutter head assembly 1 during cutting, reducing shaking, and ensuring cutting efficiency. The cutting blade 102 is a sawtooth-shaped circular blade that can efficiently cut the sugarcane stalk by rotating. The support frame 103 has a "U" shape at one end and is fixedly connected to the limiting frame 101. The other end is in the shape of a smooth arc and comes into contact with the sugarcane field, allowing the cutter head assembly 1 to move smoothly in the sugarcane field and supporting and adjusting the cutting angle during cutting. The protective cover 104 is fixedly installed on the rigid transmission member to prevent stones and debris from flying during cutting and to improve work safety.

[0048] As shown in Figure 3 The harness assembly 2 includes a shoulder strap 201, a shoulder pad 202, a quick socket 203, an adjustable buckle 204, a rotating shaft buckle 205, and a fixing ring 206. The shoulder strap 201 passes around the shoulder of a person and is connected or disconnected by the quick socket 203 for easy wearing. The shoulder pad 202 is a reverse gravity shoulder pad that reduces the pressure on the shoulder, making it convenient for long-term work. The adjustable buckle 204 adjusts the suspension height of the rigid transmission member 301 to adapt to the needs of different body heights. The rotating shaft buckle 205 can be quickly connected or disconnected with the fixing ring 206 and can rotate relative to each other to avoid twisting of the harness under stress. The fixing ring 206 is fixed at an appropriate position of the rigid transmission member 301 to facilitate suspension of the rigid transmission member 301.

[0049] As shown in Figure 4 The transmission member assembly 3 includes a rigid transmission member 301 and a flexible transmission member 302. The rigid transmission member 301 and the flexible transmission member 302 are connected to each other, and each contains an independently rotating transmission shaft inside. The flexible transmission member 302 is connected to the output end of the power assembly 4, and the output end of the rigid transmission member 301 is connected to the cutter head assembly 1. The power of the engine 401 drives the cutting blade 102 to rotate through the transmission shaft inside the flexible transmission member 302 and the rigid transmission member 301. The flexible transmission member 302 can bend freely, improving the flexibility of the work. The operator holds the rigid transmission member 301 with one hand to move the cutter head assembly 1 and conveniently aligns the cutting target.

[0050] As shown in Figure 5As shown, the power assembly 4 includes an engine 401, a reducer 402, a shoulder strap 403, and a back pad 404. The engine 401 provides power for driving the rotary cutting blade 102, and provides strong power and long operation time compared with a battery; the reducer 402 is installed at the output end of the engine 401, and can reduce the rotary speed of the cutting blade, improve the cutting torque, and enhance the cutting force; the shoulder strap 403 is provided with a shoulder pad, and can uniformly distribute pressure and improve comfort; and the back pad 404 is fixedly connected with the engine 401, and adopts a back carrying form, so that the engine 401 can be easily carried, and the engine 401 can be moved along with the sugarcane harvesting.

[0051] The working process of the back-carrying sugarcane harvester is as follows:

[0052] The back pad 404 is manually carried from the back, the shoulder strap 201 is passed around the shoulder, the suspension height of the rigid transmission member 301 is adjusted through the adjustable buckle 204, the cutter head assembly 1 and the rigid transmission member 301 are suspended, the right hand holds the rigid transmission member 301 to a comfortable position, and the left hand holds the sugarcane stem. During harvesting, the engine 401 is started, the height of the rigid transmission member 301 is adjusted by the right hand, the supporting frame 103 is in contact with the sugarcane field, and plays a supporting role, and the cutting angle of the sugarcane stem is adjusted, the cutting blade 102 is in contact with the sugarcane, the sugarcane is kept stable under the action of the limiting frame 101, and cutting is quickly realized, at this time, the left hand pushes the sugarcane to one side, and the subsequent stacking and bundling are facilitated; then the height of the rigid transmission member 301 is adjusted by the right hand, and the cutter head assembly 1 and the rigid transmission member 301 are suspended under the support of the body, and are walked to the next sugarcane to be cut (this way can reduce the labor intensity of the cutter head assembly 1 and the rigid transmission member 301 during movement, and improve comfort), and then the above harvesting process is continued.

[0053] The above embodiment describes the technical scheme of the utility model in detail. Apparently, the utility model is not limited to the described embodiment. Based on the embodiment in the utility model, those skilled in the art can make various changes according to the embodiment, but any change equivalent to or similar to the utility model belongs to the protection range of the utility model.

[0054] The contents not described in detail in the specification belong to the prior art known by those skilled in the art.

Claims

1. A knapsack sugarcane harvester characterized in that, It comprises a cutter assembly (1), a carrying strap assembly (2), a transmission assembly (3), and a power assembly (4); The cutter assembly (1) comprises a cutting blade (102) and a frame body, and is arranged at one end of the transmission assembly (3) for cutting sugarcane; The power generated by the power assembly (4) is transmitted to the cutter assembly (1) by the transmission assembly (3) and is arranged at the other end of the transmission assembly (3); The carrying strap assembly (2) is arranged on the rigid transmission member (301) of the transmission assembly (3) and is used for manually carrying the harvester. During operation, the operator holds the rigid transmission member (301) in the right hand and holds the sugarcane in the left hand to cut the root of the sugarcane, and then pushes the sugarcane to one side with the left hand.

2. The knapsack sugarcane harvester according to claim 1, characterized in that, The cutter assembly (1) comprises a limiting frame (101), a cutting blade (102), and a supporting frame (103). The limiting frame (101) is V-shaped, the V-shaped opening of the limiting frame (101) faces the harvesting object, and the limiting frame (101) is installed on the rigid transmission member (301) by a clamp. The supporting frame (103) is U-shaped at one end, the closed portion of the U-shaped supporting frame (103) is fixedly connected with the V-shaped opening of the limiting frame (101) in an interleaved manner. The closed portion of the U-shaped supporting frame (103) is in the form of a smooth circular arc.

3. The knapsack sugarcane harvester according to claim 2, characterized by the fact that The cutting blade (102) is in the form of a sawtooth-shaped circular blade.

4. The knapsack sugarcane harvester according to claim 2, characterized in that, The cutter assembly (1) comprises a protective cover (104) which is installed on the rigid transmission member (301) by a clamp.

5. The knapsack sugarcane harvester according to claim 1, characterized in that, The carrying strap assembly (2) comprises a shoulder strap (201), a shoulder pad (202), a quick socket (203), an adjustable buckle (204), a rotating shaft buckle (205), and a fixing ring (206). The shoulder strap (201) passes through the shoulder of the operator and is connected or disconnected through the quick socket (203). The adjustable buckle (204) can adjust the suspension height of the rigid transmission member (301) to adapt to the needs of different body heights. The rotating shaft buckle (205) can be quickly connected or disconnected with the fixing ring (206) and can rotate relative to the fixing ring (206) to avoid the twisting of the carrying strap under stress. The fixing ring (206) is fixed on the rigid transmission member (301) at a proper position to facilitate the suspension of the rigid transmission member (301).

6. The knapsack sugarcane harvester according to claim 5, characterized in that, The shoulder pad (202) is a counter-gravity shoulder pad.

7. The knapsack sugarcane harvester according to claim 1, characterized in that, The transmission assembly (3) comprises a rigid transmission member (301) and a flexible transmission member (302). The rigid transmission member (301) and the flexible transmission member (302) are connected through an outer tube, and the inner portions of the rigid transmission member (301) and the flexible transmission member (302) each contain a transmission flexible shaft which can rotate independently. The flexible transmission member (302) is connected with the output end of the power assembly (4), the output end of the rigid transmission member (301) is connected with the cutter assembly (1), and the power of the power assembly (4) drives the cutting blade (102) to rotate through the transmission flexible shafts in the flexible transmission member (302) and the rigid transmission member (301).

8. The knapsack sugarcane harvester according to claim 1, characterized in that, The power assembly (4) comprises an engine (401), a speed reducer (402), and a carrying strap (403). The engine (401) provides power for driving the rotation of the cutting blade (102). The speed reducer (402) is installed on the output end of the engine (401). The carrying strap (403) is provided with a back pad (404). The back pad (404) is fixedly connected with the engine (401) and adopts a form of carrying on the back.

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