Hand-held cutting machine with improved structure

Abstract

The utility model discloses a hand-held cutting machine with an improved structure, which comprises a hand-held cutting machine main body, a mounting plate is fixedly arranged at one end of the hand-held cutting machine main body, a fixing frame is fixedly arranged on the front side of the mounting plate, a transmission box is fixedly arranged in the middle of the top end of the fixing frame, and the output end of the transmission box is fixedly connected with a main shaft. According to the hand-held cutting machine with the improved structure, the eccentric wheel structures are arranged on the main shaft and the auxiliary shaft to drive the second cutter at the bottom to move left and right so as to cut the bottoms of crops, so that the crop cutting efficiency is improved, and the crop cutting efficiency is improved. And meanwhile, the first cutter on one side is driven to move up and down so as to cut inclined crops on the side edge, the situation that the crops are mixed into the hand-held cutting machine, and consequently cleaning is inconvenient is avoided, and in the cutting process, the two first chains drive a plurality of shifting teeth to move so that the cut crops can be conveniently conveyed out of a cutting area.

Description

Technical Field

[0001] This utility model relates to the field of hand-held harvesters, specifically a hand-held harvester with an improved structure. Background Technology

[0002] The harvesting method for crops has shifted from traditional manual harvesting to semi-automatic harvesting using hand-held harvesters. Hand-held harvesters are grain harvesting machines used to cut down the stalks of crops such as rice and wheat and lay them out in the field. Depending on the type of header, there are two types: horizontal header harvesters and vertical header harvesters.

[0003] However, existing hand-held harvesters are not convenient for cutting the bottom and sides of crops at the same time, and it is also inconvenient to transport the cut crops out of the cutting area.

[0004] References to existing technical literature: "Use and Maintenance of Handheld Power Tools" edited by Zhang Dunpeng and published by Chemical Industry Press in October 2010. Utility Model Content

[0005] The purpose of this invention is to provide a hand-held harvester with an improved structure to solve the problems mentioned in the background art, such as that existing hand-held harvesters are not convenient for simultaneously cutting the bottom and sides of inclined crops, and are not convenient for transporting the cut crops out of the cutting area.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hand-held harvester with an improved structure, comprising a hand-held harvester body, an installation plate fixedly mounted at one end of the hand-held harvester body, a fixed frame fixedly mounted on the front of the installation plate, a transmission box fixedly mounted at the middle of the top of the fixed frame, a main shaft fixedly connected to the output end of the transmission box, a first gear and a first eccentric wheel fixedly mounted on the top and bottom of the main shaft surface respectively, a secondary shaft rotatably mounted at one end of the inner side of the fixed frame, a second gear fixedly mounted at the middle of the fixed frame surface, a second chain driving between the second gear and the first gear, two third gears fixedly mounted at the bottom of the secondary shaft surface, a support shaft fixedly mounted at the top of the inner side of the fixed frame away from the secondary shaft, two fourth gears rotatably mounted on the surface of the support shaft, a first chain driving between the two fourth gears and the two third gears respectively, and several evenly distributed teeth fixedly mounted on the surfaces of the two first chains.

[0007] This hand-held harvester uses eccentric wheels on both the main shaft and the auxiliary shaft to drive the second cutter at the bottom to move left and right to cut the bottom of the crop. At the same time, it drives the first cutter on one side to move up and down to cut the inclined crop on the side, preventing the crop from getting into the inside of the hand-held harvester and making it difficult to clean. During the cutting process, two first chains drive several teeth to move, making it easier to transport the cut crop out of the cutting area.

[0008] Preferably, a connecting rod is provided at the middle of the bottom end of the first eccentric wheel, and a support rod is fixedly provided at the end of the connecting rod away from the first eccentric wheel. A second cutter is fixedly provided at the bottom end of the support rod. The second cutter is slidably disposed at the bottom of the fixed frame. The first eccentric wheel is driven to rotate by the main shaft, which drives one end of the connecting rod to move left and right, thereby driving the second cutter to move back and forth left and right to cut the bottom of the crop.

[0009] Preferably, a fifth gear is fixedly mounted on the top of the surface of the secondary shaft, a mounting base is fixedly mounted on one end of the top of the mounting bracket, a rotating shaft is rotatably mounted in the middle of the mounting base, a sixth gear and a second eccentric wheel are fixedly mounted on both ends of the rotating shaft, a bearing is fixedly mounted in the middle of the side of the second eccentric wheel away from the mounting base, a connecting member is mounted on the surface of the bearing, a first cutter is fixedly connected to one end of the connecting member, a blade holder is fixedly mounted on the back of the mounting plate, the first cutter is slidably mounted on one side of the blade holder, a protective plate is fixedly mounted on the back of the mounting plate, the protective plate is correspondingly mounted to the first cutter, the fifth gear drives the sixth gear to rotate, which drives the second eccentric wheel to rotate, which drives the connecting member to move up and down, which drives the first cutter to move up and down along the blade holder to perform cutting.

[0010] Preferably, the sixth gear meshes with the fifth gear.

[0011] Preferably, a mounting frame is fixedly installed at the middle of the top of the hand-held cutter body. The mounting frame is adjustable and can be used to install gasoline engines, diesel engines, and electric motors, depending on the type of engine. The engine is fixedly installed at the top of the mounting frame. A pulley is fixedly connected to the input end of the transmission box. A transmission belt is provided between the pulley and the output end of the engine, and the engine drives the pulley to rotate through the transmission belt.

[0012] Preferably, both the mounting plate and the fixing frame are made of stainless steel, which has high hardness to ensure the overall structural strength.

[0013] Preferably, the bottom of both sides of the hand-held cutter body is rotatably provided with handrails, and locking bolts are threaded on the outer side of both handrails. Arc-shaped grooves are opened on the top of both sides of the hand-held cutter body, and the arc-shaped grooves are corresponding to the locking bolts. The height of the two handrails can be adjusted by loosening the two locking bolts and then rotating the two handrails to facilitate operation. The two locking bolts are then tightened to lock and fix the two handrails.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This hand-held harvester uses eccentric wheels on both the main shaft and the auxiliary shaft to drive the second cutter at the bottom to move left and right to cut the bottom of the crop. At the same time, it drives the first cutter on one side to move up and down to cut the inclined crop on the side, thus preventing the crop from getting into the inside of the hand-held harvester and making it difficult to clean. During the cutting process, two first chains drive several teeth to move, which facilitates the removal of the cut crop from the cutting area.

[0016] 2. Loosen the two locking bolts and then rotate the two handrails to adjust their height for easier operation. Then tighten the two locking bolts to lock and fix the two handrails in place.

[0017] 3. The mounting bracket is adjustable and can accommodate gasoline engines, diesel engines, and electric motors, depending on the type of engine.

[0018] 4. By installing a toothed frame on the harvester frame and connecting the drive shaft on the toothed frame to the top of the secondary shaft, the crops are less likely to tip over during the harvesting and conveying process when harvesting tall crops such as corn. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present utility model;

[0020] Figure 2 This is a partial front sectional view of the present invention;

[0021] Figure 3 This is an enlarged view of part A of this utility model;

[0022] Figure 4 This is an enlarged view of part B of the present invention;

[0023] Figure 5 This is an enlarged view of part C of this utility model.

[0024] In the diagram: 1. Hand-held cutter body; 2. Engine; 3. Mounting plate; 4. Connecting parts; 5. First cutter; 6. Blade holder; 7. Fixing frame; 8. Main shaft; 9. First gear; 10. Countershaft; 11. Second gear; 12. Third gear; 13. First chain; 14. Gear; 15. Second chain; 16. Support shaft; 17. Fourth gear; 18. Transmission box; 19. Pulley; 20. Transmission belt; 21. First eccentric wheel; 22. Connecting rod; 23. Support rod; 24. Second cutter; 25. Fifth gear; 26. Sixth gear; 27. Second eccentric wheel; 28. Bearing; 29. ​​Mounting seat; 30. Rotating shaft; 31. Handrail; 32. Arc groove; 33. Locking bolt; 34. Protective plate; 35. Mounting frame. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0026] Please see Figure 1-5 This utility model provides a hand-held harvester with an improved structure, including a hand-held harvester body 1. A mounting plate 3 is fixedly installed at one end of the hand-held harvester body 1. A fixing frame 7 is fixedly installed on the front of the mounting plate 3. A transmission box 18 is fixedly installed at the middle of the top of the fixing frame 7. A main shaft 8 is fixedly connected to the output end of the transmission box 18. A first gear 9 and a first eccentric wheel 21 are fixedly installed on the top and bottom surfaces of the main shaft 8, respectively. A secondary shaft 10 is rotatably installed at one end of the inner side of the fixing frame 7. A second gear 11 is fixedly installed at the middle of the surface of the fixing frame 7. A second chain 15 is used for transmission between the second gear 11 and the first gear 9. Two third gears 12 are fixedly installed at the bottom of the surface of the secondary shaft 10. The top of the inner side of the fixing frame 7 away from the secondary shaft 10 is fixedly installed... A support shaft 16 is fixedly installed, and two fourth gears 17 are rotatably mounted on the surface of the support shaft 16. The two fourth gears 17 are respectively connected to two third gears 12 by a first chain 13. The surfaces of the two first chains 13 are fixedly equipped with several evenly distributed teeth 14. The hand-held harvester uses eccentric wheel structures on both the main shaft 8 and the auxiliary shaft 10 to drive the second cutter 24 at the bottom to move left and right to cut the bottom of the crop. At the same time, it drives the first cutter 5 on one side to move up and down to cut the inclined crop on the side, so as to avoid the crop getting into the inside of the hand-held harvester and making it difficult to clean. During the cutting process, the two first chains 13 drive several teeth 14 to move, so as to facilitate the transport of the cut crop out of the cutting area.

[0027] A connecting rod 22 is provided at the middle of the bottom end of the first eccentric wheel 21. A support rod 23 is fixedly provided at the end of the connecting rod 22 away from the first eccentric wheel 21. A second cutter 24 is fixedly provided at the bottom end of the support rod 23. The second cutter 24 is slidably disposed at the bottom of the fixed frame 7. The main shaft 8 drives the first eccentric wheel 21 to rotate, thereby driving one end of the connecting rod 22 to move left and right, and in turn driving the second cutter 24 to move back and forth to cut the bottom of the crop. A fifth gear 25 is fixedly provided at the top of the surface of the secondary shaft 10. A mounting base 29 is fixedly provided at one end of the top of the fixed frame 7. A rotating shaft 30 is rotatably disposed in the middle of the mounting base 29. A sixth gear 26 and a second eccentric wheel 27 are fixedly provided at both ends of the rotating shaft 30, respectively. The second eccentric wheel 27 is located at the bottom of the first eccentric wheel 21. A bearing 28 is fixedly installed in the middle of one side away from the mounting base 29. A connector 4 is provided on the surface of the bearing 28. A first cutter 5 is fixedly connected to one end of the connector 4. A blade holder 6 is fixedly installed on the back of the mounting plate 3. The first cutter 5 is slidably installed on one side of the blade holder 6. A protective plate 34 is fixedly installed on the back of the mounting plate 3. The protective plate 34 is correspondingly installed to the first cutter 5. The sixth gear 26 is meshed with the fifth gear 25. The fifth gear 25 drives the sixth gear 26 to rotate, which drives the second eccentric wheel 27 to rotate, which drives the connector 4 to move up and down, which drives the first cutter 5 to move up and down along the blade holder 6 to perform cutting.

[0028] Handrails 31 are rotatably mounted on the bottom of both sides of the main body 1 of the hand-held harvester. Locking bolts 33 are threaded onto the outer sides of both handrails 31. Arc-shaped grooves 32 are formed on the top of both sides of the main body 1, corresponding to the locking bolts 33. The height of the two handrails 31 can be adjusted by loosening the two locking bolts 33 and rotating them to facilitate operation. Tightening the two locking bolts 33 locks the two handrails 31 in place. A fixed section is located at the center of the top of the main body 1. There is a mounting bracket 35, which is adjustable. Depending on the engine 2, a gasoline engine, a diesel engine, or an electric motor can be installed. The engine 2 is fixedly installed at the top of the mounting bracket 35. A pulley 19 is fixedly connected to the input end of the transmission box 18. A transmission belt 20 is provided between the pulley 19 and the output end of the engine 2. The engine 2 drives the pulley 19 to rotate through the transmission belt 20. The mounting plate 3 and the fixing bracket 7 are both made of stainless steel. Stainless steel has high hardness to ensure the overall structural strength.

[0029] In this embodiment, the engine 2 drives the pulley 19 to rotate via the transmission belt 20. Under the action of the transmission box 18, the main shaft 8 rotates, which in turn drives the first gear 9 and the first eccentric wheel 21 to rotate. The first eccentric wheel 21 drives one end of the connecting rod 22 to move left and right, thereby driving the second cutter 24 to move back and forth to cut the bottom of the crop. The first gear 9, driven by the second chain 15, drives the second gear 11 to rotate, which in turn drives the countershaft 10 to rotate, which in turn drives the two third gears 12 and the fifth gear 25 to rotate, which in turn drives the two first chains 13 to move, which in turn drives several pry teeth 14 to move, thus transporting the cut crop out of the cutting area. The fifth gear 25 drives the sixth gear 26 to rotate, which in turn drives the second eccentric wheel 27 to rotate, which in turn drives the connecting piece 4 to move up and down, which in turn drives the first cutter 5 to move up and down along the cutter holder 6 for cutting. During use, the height of the two handles 31 can be adjusted by loosening the two locking bolts 33 and then rotating the two handles 31 to facilitate operation. The two locking bolts 33 are then tightened to lock the two handles 31. A tall crop tooth rack can also be installed at the top of the sub-shaft 10. When harvesting tall crops such as corn, the tooth rack is installed on the harvester frame and the drive shaft of the tooth rack is fixedly connected through the hole at the top of the sub-shaft 10, which drives the tooth rack on the tooth rack to rotate.

[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hand-held harvester with an improved structure, comprising a hand-held harvester body (1), characterized in that: A mounting plate (3) is fixedly installed at one end of the main body (1) of the hand-held cutter. A fixing frame (7) is fixedly installed on the front of the mounting plate (3). A transmission box (18) is fixedly installed at the middle of the top of the fixing frame (7). A main shaft (8) is fixedly connected to the output end of the transmission box (18). A first gear (9) and a first eccentric wheel (21) are fixedly installed on the top and bottom surfaces of the main shaft (8), respectively. A secondary shaft (10) is rotatably installed at one end of the inner side of the fixing frame (7). A second gear (11) is fixedly installed in the middle of the surface of the fixing frame (7). A second chain (15) is provided for transmission between the second gear (11) and the first gear (9). Two third gears (12) are fixedly provided at the bottom of the surface of the secondary shaft (10). A support shaft (16) is fixedly provided at the top of the inner side of the fixed frame (7) away from the secondary shaft (10). Two fourth gears (17) are rotatably provided on the surface of the support shaft (16). A first chain (13) is provided for transmission between the two fourth gears (17) and the two third gears (12). Several evenly distributed teeth (14) are fixedly provided on the surface of the two first chains (13).

2. The hand-held harvester with improved structure according to claim 1, characterized in that: A connecting rod (22) is provided at the middle of the bottom end of the first eccentric wheel (21). A support rod (23) is fixedly provided at the end of the connecting rod (22) away from the first eccentric wheel (21). A second cutter (24) is fixedly provided at the bottom end of the support rod (23). The second cutter (24) is slidably provided at the bottom of the fixed frame (7).

3. The hand-held harvester with improved structure according to claim 1, characterized in that: A fifth gear (25) is fixedly installed on the top of the surface of the secondary shaft (10). A mounting seat (29) is fixedly installed at one end of the top of the fixed frame (7). A rotating shaft (30) is rotatably installed in the middle of the mounting seat (29). A sixth gear (26) and a second eccentric wheel (27) are fixedly installed at both ends of the rotating shaft (30). A bearing (28) is fixedly installed in the middle of the side of the second eccentric wheel (27) away from the mounting seat (29). A connecting piece (4) is installed on the surface of the bearing (28). A first cutter (5) is fixedly connected to one end of the connecting piece (4). A knife holder (6) is fixedly installed on the back of the mounting plate (3). The first cutter (5) is slidably installed on one side of the knife holder (6). A protective plate (34) is fixedly installed on the back of the mounting plate (3). The protective plate (34) is correspondingly installed to the first cutter (5).

4. The hand-held harvester with improved structure according to claim 3, characterized in that: The sixth gear (26) meshes with the fifth gear (25).

5. The hand-held harvester with improved structure according to claim 1, characterized in that: A mounting bracket (35) is fixedly installed at the middle of the top of the main body (1) of the hand-held cutter. An engine (2) is fixedly installed at the top of the mounting bracket (35). A pulley (19) is fixedly connected to the input end of the transmission box (18). A transmission belt (20) is provided between the pulley (19) and the output end of the engine (2).

6. The hand-held harvester with improved structure according to claim 1, characterized in that: Both the mounting plate (3) and the fixing bracket (7) are made of stainless steel.

7. The hand-held harvester with improved structure according to claim 1, characterized in that: Handrails (31) are rotatably provided on the bottom of both sides of the hand-held cutter body (1). Locking bolts (33) are threaded on the outer side of both handrails (31). Arc grooves (32) are opened on the top of both sides of the hand-held cutter body (1). The arc grooves (32) are corresponding to the locking bolts (33).

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