Crawler-type weeding machine

Abstract

The utility model relates to the technical field of weeding machines, in particular to a crawler-type weeding machine which comprises a driving assembly, the driving assembly comprises a chassis frame, the chassis frame is fixedly connected with a cutting assembly used for mowing, the cutting assembly comprises a fixing frame, the fixing frame is fixedly connected with one end of the chassis frame, and the fixing frame is fixedly connected with a motor. A motor output shaft is fixedly connected with a flywheel, the flywheel is meshed with two cylindrical gears, the axis of each cylindrical gear is rotationally connected with a lead screw through a bearing, the end, located on the motor, of the chassis frame is fixedly connected with a cutting cover plate, a threaded hole is formed in the upper surface of the cutting cover plate, and the lead screw penetrates through the threaded hole and is rotationally connected with the cutting cover plate. The vertical movement of the cylindrical gear can be adjusted by rotating the lead screw, the motor is used for driving the flywheel, the flywheel is meshed with the cylindrical gear, threaded holes in the lead screw and the cutting cover plate are matched, an operator only needs to rotate the rotating disc at the upper end of the lead screw, the vertical movement of the cutting knife can be easily achieved, and therefore the height of cut grass is accurately adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to weeding machine technical field, concretely relates to a track type weeding machine. BACKGROUND

[0002] In agricultural production, garden maintenance and many other scenes, weeding work is an important and frequent work.

[0003] The traditional mowing device exposes many limitations in the actual application process. Among them, the most prominent problem is that it is difficult to flexibly adjust the height of the cut grass. Different use scenarios have diversified requirements for the retention height of the grass. For example, in the maintenance of football field lawn, the grass needs to be cut to a certain height to ensure the player's experience and the healthy growth of the lawn. When weeding in orchards, it is sometimes necessary to retain a certain height of grass to maintain soil moisture and prevent water and soil loss. However, due to the lack of effective height adjustment mechanism, the traditional mowing device cannot meet these differentiated needs, greatly limiting its application range and use efficiency. In addition, part of the traditional mowing machine performs poorly in terrain adaptability and cannot work normally in complex terrain such as mountains, wetlands and other environments, resulting in inefficient weeding work.

[0004] Therefore, there is an urgent need for a track type weeding machine to improve the deficiencies of the prior art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a track type weeding machine, which uses a motor to drive a flywheel, the flywheel is engaged with a cylindrical gear, and the cylindrical gear is matched with a screw rod and a threaded hole on a cutting cover plate. An operator only needs to rotate the disc on the upper end of the screw rod to easily realize the up-down movement of the cutting knife, thereby accurately adjusting the height of the cut grass, to solve the problems raised in the above background technology, that is:

[0006] The traditional device cannot flexibly adjust the height of the cut grass.

[0007] To achieve the above-mentioned purpose, the utility model provides a track type weeding machine, which comprises a driving assembly, the driving assembly comprises a chassis frame, the chassis frame is fixedly connected with a cutting assembly for mowing, the cutting assembly comprises a fixed frame, the fixed frame is fixedly connected with the chassis frame at one end, the fixed frame is fixedly connected with a motor, the motor output shaft is fixedly connected with a flywheel, the flywheel is engaged with two cylindrical gears, the cylindrical gears are rotatably connected with a screw rod at the shaft center through a bearing, one end of the chassis frame fixedly connected with a cutting cover plate, the upper surface of the cutting cover plate is provided with a threaded hole, the screw rod penetrates through the threaded hole, and the screw rod is rotatably connected with the cutting cover plate. Rotating the screw rod can adjust the up-down movement of the cylindrical gear.

[0008] In the above technical scheme, the starting motor drives the flywheel fixedly connected with the motor output shaft to rotate, and drives the cylindrical gear to rotate through the engagement of the flywheel and the cylindrical gear.

[0009] On this basis, after adjusting the cutting knife to the appropriate height, the weeding machine moves to the area to be weeded under the drive of the track. The cutting knife rotates at high speed with the movement of the weeding machine to cut the weeds. During the cutting process, the cutting baffle plays a protective role to prevent weeds from splashing on the operator or other equipment. At the same time, the fixed seat ensures the stable operation of the connecting column and the cutting knife, and ensures the smooth progress of the cutting operation.

[0010] In another technical scheme, the bottom frame is fixedly connected with a driving frame on both sides, and the driving frame is rotatably connected with a track for driving the device to move;

[0011] One end of the bottom frame is fixedly connected with a cutting baffle, the front end of the cutting baffle penetrates through both sides, and the upper surface of the cutting baffle is provided with two insertion holes, which are located directly below the cylindrical gear;

[0012] The insertion hole is fixedly connected with a fixed seat, the shaft center of the fixed seat is fixedly connected with a bearing, the lower surface of the cylindrical gear is fixedly connected with a connecting column, and the connecting column penetrates through the fixed seat and is slidably connected with the fixed seat.

[0013] Because the cylindrical gear is connected with the bearing and the lead screw, the linear motion of the lead screw drives the cylindrical gear to move up and down. The cutting tool and other components associated with the cylindrical gear also move up and down, thereby adjusting the cutting height

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] The track-type weeding machine uses a motor to drive a flywheel, the flywheel is engaged with a cylindrical gear, and the threads of the screw rod and the cutting cover plate are matched, so that the operator only needs to rotate the rotating disc at the upper end of the screw rod to easily realize the up-down movement of the cutting knife, thereby accurately adjusting the height of the cut grass. This function effectively makes up for the shortcomings of traditional cutting devices, meets the diversified needs of grass height retention in different scenes, improves the applicability and flexibility of the weeding machine, and the cutting baffle can prevent weeds from flying around during cutting, protecting the operator from injury; the fixed seat provides stable support for the connecting column, ensuring that the cutting knife remains stable during operation, improving the cutting effect; the lower guard plate protects the flywheel, reducing damage to the flywheel from external factors, and prolonging the service life of the weeding machine. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0017] Figure 2 It is a schematic diagram of the driving assembly structure of the embodiment.

[0018] Figure 3 It is a schematic diagram of the cutting assembly structure of the embodiment.

[0019] Figure 4 It is a schematic diagram of the cutting mechanism structure of the embodiment.

[0020] The meanings of the various reference numbers in the drawings are as follows:

[0021] 1, driving assembly; 100, chassis frame; 101, driving frame; 102, track; 103, lower guard plate;

[0022] 2, cutting assembly; 200, motor; 201, fixed frame; 202, flywheel; 203, plug-in hole; 204, cutting baffle; 205, fixed seat; 206, cylindrical gear; 207, knife seat; 208, cutting knife; 209, screw rod; 210, rotating disc; 211, cutting cover plate; 212, threaded hole; 213, connecting column. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] At present, it is difficult to flexibly adjust the height of the cut grass when cutting grass with traditional devices. The present application provides a track-type weeding machine, please refer to Figures 1-4As shown, it comprises a driving assembly 1, which includes a chassis frame 100, and a cutting assembly 2 fixedly connected to the chassis frame 100 for mowing. The cutting assembly 2 includes a fixed frame 201 fixedly connected to one end of the chassis frame 100, and a motor 200 fixedly connected to the fixed frame 201. The output shaft of the motor 200 is fixedly connected to a flywheel 202, which is engaged with two cylindrical gears 206. The shaft centers of the cylindrical gears 206 are rotatably connected to a lead screw 209 through bearings. One end of the chassis frame 100 is fixedly connected to a cutting cover plate 211. The upper surface of the cutting cover plate 211 is provided with a threaded hole 212, and the lead screw 209 penetrates through the threaded hole 212 and is rotatably connected to the cutting cover plate 211. Rotating the lead screw 209 can adjust the up-and-down movement of the cylindrical gears 206.

[0025] When the motor 200 is started during implementation, the output shaft of the motor 200 begins to rotate. Since the output shaft of the motor 200 is fixedly connected to the flywheel 202, the flywheel 202 will be driven to rotate. The flywheel 202 and the two cylindrical gears 206 are engaged with each other, so that the rotation of the flywheel 202 will drive the two cylindrical gears 206 to rotate. Since the cylindrical gears 206 are connected to the lead screw 209 through bearings, the linear movement of the lead screw 209 will drive the cylindrical gears 206 to move up and down. The cutting knives 208 associated with the cylindrical gears 206 will also move up and down, thereby adjusting the cutting height.

[0026] Referring to Figure 2 As shown, the caterpillar tracks 102 on the driving frames 101 on both sides of the chassis frame 100 begin to rotate under the drive of the power device. Friction is generated between the caterpillar tracks 102 and the ground, thereby pushing the weeding machine to move in the working area. This caterpillar track 102 type driving mode can adapt to different terrain conditions and ensure that the weeding machine stably and efficiently reaches each working position.

[0027] Referring to Figure 3 As shown, the motor 200 is started, and the output shaft of the motor 200 drives the flywheel 202 fixedly connected thereto to rotate at high speed. Since the flywheel 202 is engaged with the two cylindrical gears 206, the rotation of the flywheel 202 will drive the cylindrical gears 206 to rotate synchronously. The shaft centers of the cylindrical gears 206 are rotatably connected to the lead screw 209 through bearings, and the lead screw 209 penetrates through the threaded hole 212 in the cutting cover plate 211 and is rotatably connected to the cutting cover plate 211. When the operator rotates the turntable 210 at the upper end of the lead screw 209, the lead screw 209 moves linearly in the threaded hole 212, thereby driving the cylindrical gears 206 to move up and down. The connecting column 213 on the lower surface of the cylindrical gear 206 penetrates through the fixed seat 205 and is slidably connected to the fixed seat 205. The connecting column 213 moves with the up-and-down movement of the cylindrical gear 206, thereby adjusting the height of the knife seat 207 and the cutting knife 208.

[0028] Referring to Figure 4 As shown, the cutter seat 207 is fixedly connected with the cutting knife 208 through bolts, and this connection mode makes the replacement and maintenance of the cutting knife 208 very convenient. When the cutting knife 208 is worn or damaged, the operator can quickly disassemble and replace a new cutting knife 208 without complex tools and operations.

[0029] In addition, when the grass is cut, the operator can drive the lead screw 209 to make linear motion in the threaded hole 212 of the cutting cover plate 211 by rotating the rotating disc 210. Since the lead screw 209 is connected with the cylindrical gear 206 through bearings, the linear motion of the lead screw 209 will drive the cylindrical gear 206 to move up and down, thereby controlling the height of the cutting knife 208 from the ground, and realizing the adjustment of the height of the cutting knife 208 to adapt to different mowing height requirements.

[0030] In the specific use of the track-type weeding machine in this embodiment, first, the operator can drive the lead screw 209 to make linear motion in the threaded hole 212 of the cutting cover plate 211 by rotating the rotating disc 210. Since the lead screw 209 is connected with the cylindrical gear 206 through bearings, the linear motion of the lead screw 209 will drive the cylindrical gear 206 to move up and down, and adjust the cutting knife 208 to the appropriate height.

[0031] When the power device is started, power is transmitted to the track 102 through the transmission system, so that the track 102 starts to rotate. The friction between the track 102 and the ground pushes the weeding machine to move in the working area. This driving mode of the track 102 makes the weeding machine have good terrain adaptability, which can stably move on flat grassland, rugged mountainous area or muddy wetland.

[0032] Start the motor 200, and the output shaft of the motor 200 starts to rotate. Since the output shaft of the motor 200 is fixedly connected with the flywheel 202, the flywheel 202 will rotate synchronously. The flywheel 202 is engaged with the two cylindrical gears 206, and when the flywheel 202 rotates, it will drive the two cylindrical gears 206 to rotate. The connecting column 213 penetrates the fixed seat 205 and is slidingly connected with the fixed seat 205, and the fixed seat 205 is fixed at the insertion hole 203 on the upper surface of the cutting baffle 204. When the cylindrical gear 206 moves up and down, the connecting column 213 will slide in the fixed seat 205 accordingly, so as to ensure the smooth movement of the connecting column 213 and the cylindrical gear 206. The connecting column 213 is fixedly connected with the cutter seat 207, and the cutter seat 207 is fixedly connected with the cutting knife 208 through bolts. Therefore, the up-and-down movement of the cylindrical gear 206 will drive the cutter seat 207 and the cutting knife 208 to move up and down, realizing the adjustment of the height of the cutting knife 208 to adapt to different mowing height requirements.

[0033] After the height adjustment of the cutting knife 208 is completed, the weeding machine is driven by the caterpillar 102 to move to the area to be weeded. With the movement of the weeding machine, the cutting knife 208 rotates at high speed to cut the weeds. The front end of the cutting baffle 204 is penetrated on both sides, which prevents the weeds from splashing to other parts of the weeding machine or the operator during the mowing process, and also plays a certain role in defining the cutting area

[0034] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A crawler weeder comprising a drive assembly (1) comprising a chassis frame (100), characterised in that: The chassis frame (100) is fixedly connected with a cutting assembly (2) for mowing, the cutting assembly (2) comprises a fixed frame (201), the fixed frame (201) is fixedly connected with one end of the chassis frame (100), the fixed frame (201) is fixedly connected with a motor (200), the output shaft of the motor (200) is fixedly connected with a flywheel (202), the flywheel (202) is engaged with two cylindrical gears (206), the cylindrical gears (206) are rotatably connected with lead screws (209) at the shaft centers through bearings, the cutting cover plate (211) is fixedly connected with one end of the chassis frame (100) of the motor (200), the upper surface of the cutting cover plate (211) is provided with a threaded hole (212), the lead screw (209) penetrates the threaded hole (212), and the lead screw (209) is rotatably connected with the cutting cover plate (211), and rotating the lead screw (209) can adjust the up-down movement of the cylindrical gear (206).

2. The track-type lawn mower of claim 1, characterized in that: The chassis frame (100) is fixedly connected with a driving frame (101) on both sides, the driving frame (101) is rotatably connected with a track (102) for driving device movement.

3. The track-type lawn mower of claim 1, characterized by: The chassis frame (100) is fixedly connected with a cutting baffle (204) at one end, the cutting baffle (204) penetrates the front end on both sides, the upper surface of the cutting baffle (204) is provided with two plug-in holes (203), and the plug-in holes (203) are located directly below the cylindrical gears (206).

4. A track-type lawn mower as claimed in claim 3, characterised in that: The plug-in hole (203) is fixedly connected with a fixed seat (205), the shaft center of the fixed seat (205) is fixedly connected with a bearing, the lower surface of the cylindrical gear (206) is fixedly connected with a connecting column (213), the connecting column (213) penetrates the fixed seat (205) and is slidably connected with the fixed seat (205).

5. A track-type lawn mower as claimed in claim 4, characterised in that: The lower surface of the connecting column (213) is fixedly connected with a knife seat (207), the knife seat (207) is fixedly connected with a cutting knife (208) through bolts.

6. The track-type lawn mower of claim 1, characterized by: The upper end of the lead screw (209) is fixedly connected with a rotating disc (210), and the lower surface of the chassis frame (100) is fixedly connected with a lower guard plate (103) for protecting the flywheel (202).

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