A mowing device for an excavator

Abstract

The present invention relates to the technical field of landscape gardening maintenance, and discloses a mowing device for an excavator, comprising a shell, a conversion shaft is fixedly connected to the top of the shell, mounting holes are provided on both the front and rear sides of the conversion shaft, a cutting mechanism is fixedly connected to the inside of the shell, an auxiliary mechanism is fixedly connected to the top of the shell, and a heat dissipation mechanism is fixedly connected to the inside of the shell. The mowing device for an excavator, by setting a cutting mechanism and setting the cutter to an independent state, can be replaced separately when one of the cutting cutters is damaged. In addition, when replacing the cutting cutter, the operation is simple and convenient, which improves the work efficiency of replacing the cutter, and the fixing rod is limited by the sleeve, the limit bar 1 and the limit bar 2, thereby improving the stability of the cutting cutter after installation, avoiding the phenomenon of the cutting cutter being loose and falling when in use, and increasing the safety of the device.

Description

Technical Field

[0001] The invention relates to the technical field of landscape gardening maintenance, in particular to a mowing device for an excavator. Background Art

[0002] Landscape architecture refers to the science, technology and art of creating a safe, comfortable, healthy and efficient living environment for human beings by arranging the land itself and the materials and space on the land. The development prospects of landscape architecture have become a consensus of all mankind. Climate warming, energy shortage and environmental crisis are common challenges faced by mankind. Scientific development, ecological civilization and harmonious society have become the basic strategies for China's sustainable development. Stable economic growth and rapid urbanization will continue for a long time. In landscape architecture, it is often necessary to prune the trees in the garden, but the garden area is large and manual pruning is difficult. Most of them use mowing equipment for pruning, such as excavator mowing equipment.

[0003] The Chinese patent publication number is: CN205232792U, which discloses a mowing device for an excavator. The application states: "At present, mowing products are also installed on tractors, skid loaders and small greening machines to complete special environment operations, but there are limitations in clearing weeds in river slopes, corners and other locations." The application solves this problem well, but there are the following defects:

[0004] The tool parts of the mowing device for excavators mentioned in the application are mostly integral structures. When a single tool is damaged during tree pruning, the entire tool must be replaced, resulting in a waste of resources. The replacement of the tool is extremely inconvenient, and the temperature inside the mowing device is prone to being too high after long-term use, thereby causing damage to the internal parts. For this reason, we propose a mowing device for excavators. Summary of the invention

[0005] The object of the present invention is to provide a mowing device for an excavator to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mowing device for an excavator, comprising a shell, a conversion shaft is fixedly connected to the top of the shell, mounting holes are provided on the front and rear sides of the conversion shaft, a cutting mechanism is fixedly connected to the inside of the shell, an auxiliary mechanism is fixedly connected to the top of the shell, and a heat dissipation mechanism is fixedly connected to the inside of the shell.

[0007] The cutting mechanism includes a partition, which is fixedly connected to the inner side of the shell, and the bottom of the partition is movably connected to a transmission rod through a bearing, a threaded groove is opened at the bottom of the transmission rod, a threaded block is inside the threaded groove, a fixing rod is fixedly connected to the bottom of the threaded block, a cutting tool 1 is fixedly connected to the bottom end of the fixing rod, a limiting strip 1 is fixedly connected to the outer surface of the fixing rod, a limiting strip 2 is fixedly connected to the outer surface of the transmission rod, a sleeve is sleeved on the outer surface of the transmission rod, a limiting groove is opened on the inner side of the sleeve, and the top of the limiting strip 1 and the bottom of the limiting strip 2 are both located on the inner side of the limiting groove.

[0008] Preferably, an L-shaped block is fixedly connected to the bottom of the shell, a second screw hole is provided at the bottom of the L-shaped block, a threaded rod is threadedly connected to the inner side of the second screw hole, a handle is fixedly connected to the bottom end of the threaded rod, and fixed blocks are fixedly connected to the left and right sides of the sleeve, a screw hole is provided at the top of the fixed block, the fixed block is threadedly connected to the outer surface of the threaded rod, the threaded rod can be conveniently rotated by the handle, and the rotation of the threaded rod drives the sleeve to move through the fixed block.

[0009] Preferably, a protective shell 1 is fixedly connected to the right side of the shell, a first motor is fixedly connected to the inner side of the protective shell 1, the first motor is equipped with an output shaft, the first motor is fixedly connected to a worm through the output shaft, a worm wheel is fixedly connected to the outer surface of the transmission rod, the rear side of the worm wheel is meshed with the front side of the worm, the first motor drives the worm to rotate through the output shaft, and the worm drives the worm wheel to rotate.

[0010] Preferably, the left end of the worm passes through the right side of the shell and is movably connected to the left side of the shell through a bearing, and the bottom end of the transmission rod is movably connected to the bottom of the shell through a bearing. Three transmission rods are provided, and the three transmission rods are evenly spaced at the bottom of the partition. The three cutting tools are independently distributed but driven by a first motor.

[0011] Preferably, the heat dissipation mechanism includes a connecting block, which is fixedly connected to the top of the shell, and the left side of the connecting block is movably connected to a rotating rod through a bearing, and the right end of the rotating rod passes through the connecting block, and the outer surface of the rotating rod is fixedly connected to a fixed cylinder, and the outer surface of the fixed cylinder is fixedly connected to heat dissipation blades, and the heat dissipation blades are distributed in a ring shape on the outer surface of the fixed cylinder, and the inner side of the shell is fixedly connected to a baffle, and the baffle is fixedly connected to the top of the partition.

[0012] Preferably, an air inlet slot is provided on the top of the shell, a dustproof net is fixedly connected to the inner side of the air inlet slot, a through hole is provided on the top of the partition, the through holes are densely distributed on the top of the partition with equal intervals, a through slot is provided on the inner bottom of the shell, a protective net is fixedly connected to the inner side of the through slot, the air inlet slot can allow air outside the shell to flow into the shell, the dustproof net can prevent dust from entering the shell, and the protective net can prevent trees generated during cutting from entering the shell.

[0013] Preferably, the rotating rod is movably connected to the left side of the shell through a bearing, the left end of the rotating rod passes through the left side of the shell, the outer surface of the rotating rod is fixedly connected to a driven wheel, the left end of the worm passes through the left side of the shell, the outer surface of the worm is fixedly connected to a driving wheel, the outer surface of the driving wheel and the outer surface of the driven wheel are connected through a belt drive, the rotation of the worm drives the driven wheel to rotate through the driving wheel, the rotation of the driven wheel drives the rotating rod to rotate, and the rotation of the rotating rod thereby drives the heat dissipation blades to rotate.

[0014] Preferably, the auxiliary mechanism includes a top block, which is fixedly connected to the top of the shell, a slide groove is provided on the top of the top block, a slider is slidably connected to the inside of the slide groove, a protective shell 2 is fixedly connected to the top of the slider, and a second motor is fixedly connected to the inside of the protective shell.

[0015] Preferably, a mounting plate is fixedly connected to the top of the shell, an electric telescopic rod is fixedly connected to the left side of the mounting plate, and the electric telescopic rod is fixedly connected to the right side of the protective shell two. The mounting plate facilitates the fixing of the electric telescopic rod, and the electric telescopic rod can drive the movement of the cutting tool two.

[0016] Preferably, the second motor is equipped with an output shaft, the second motor is fixedly connected to a rotating shaft via the output shaft, a second cutting tool is fixedly connected to the outer surface of the rotating shaft, and the slider and the slide groove are both set to a T shape, and the T-shape setting facilitates limiting the protective shell two.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The mowing device for the excavator is provided with a cutting mechanism. During use, after replacement is completed, the threaded rod is rotated in the opposite direction so that the limit strip 1 enters the limit groove again, and the fixed rod is limited by the sleeve, the limit strip 1 and the limit strip 2. By setting the tool to an independent state, when one of the cutting tools 1 is damaged, it can be replaced separately, thereby improving the practicality of the device. In addition, when replacing the cutting tool 1, the operation is simple and convenient, which improves the work efficiency of replacing the tool, and the fixed rod is limited by the sleeve, the limit strip 1 and the limit strip 2, thereby improving the stability of the cutting tool 1 after installation, avoiding the phenomenon of the cutting tool 1 loosening and falling during use, and increasing the safety of the device.

[0019] 2. The mowing device for excavators is provided with a heat dissipation mechanism. During use, the air outside the shell flows from the outside of the shell to the inside of the shell, forming an air circulation inside and outside the shell, and the hot air in the shell flows to the outside of the shell, thereby achieving the purpose of heat dissipation. The heat dissipation mechanism forms an air circulation inside and outside the shell while the cutting mechanism is working. Under the action of the air circulation, the heat generated by the operation of the parts in the shell is brought out of the shell, thereby achieving the purpose of heat dissipation of the device. By dissipating the heat of the parts in the shell, the phenomenon of overheating and damage after long-term use is avoided, thereby increasing the service life of the device.

[0020] 3. The mowing device for the excavator is provided with an auxiliary mechanism. During use, the cutting tool 2 rotates to trim the trees. When the trimming position needs to be adjusted, the electric telescopic rod is started. The extension or shortening of the electric telescopic rod can adjust the cutting position. The auxiliary mechanism is provided as a single cutting tool 2, and the cutting angle of the cutting tool 2 is opposite to the direction of the cutting tool 1, so that it can work in a narrow range, and the position of the cutting tool 2 can be adjusted under the action of the electric telescopic rod, which further improves the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic cross-sectional view of the front part of the overall structure of the present invention;

[0023] Figure 3 It is a partial cross-sectional schematic diagram of the fixing rod of the present invention;

[0024] Figure 4 It is a schematic diagram of a partial explosion structure of the present invention;

[0025] Figure 5 for Figure 2 Enlarged structural diagram at A in the middle.

[0026] In the figure: 1, housing; 2, cutting mechanism; 201, partition; 202, protective shell 1; 203, first motor; 204, transmission rod; 205, worm; 206, worm wheel; 207, cutting tool 1; 208, fixing block; 209, L-shaped block; 210, handle; 211, sleeve; 212, thread block; 213, limit strip 1; 214, thread groove; 215, thread rod; 216, limit strip 2; 217, fixing rod; 218, screw hole 1; 219, limit slot; 3, heat dissipation mechanism; 301, driven wheel; 302, driving wheel; 303, through hole; 304, baffle; 305, through slot; 306, air inlet slot; 307, heat dissipation blade; 308, fixing cylinder; 309, rotating rod; 310, connecting block; 4, auxiliary mechanism; 401, cutting tool 2; 402, second motor; 403, slider; 404, protective shell 2; 405, top block; 406, electric telescopic rod; 407, mounting plate; 5, conversion shaft; 6, mounting hole. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] See also Figure 1-4 The present invention provides a technical solution: a mowing device for an excavator, comprising a shell 1, a conversion shaft 5 is fixedly connected to the top of the shell 1, mounting holes 6 are provided on the front and rear sides of the conversion shaft 5, a cutting mechanism 2 is fixedly connected to the inside of the shell 1, an auxiliary mechanism 4 is fixedly connected to the top of the shell 1, and a heat dissipation mechanism 3 is fixedly connected to the inside of the shell 1.

[0030] The cutting mechanism 2 includes a partition 201, which is fixedly connected to the inner side of the shell 1. A transmission rod 204 is movably connected to the bottom of the partition 201 through a bearing. A threaded groove 214 is provided at the bottom of the transmission rod 204. A threaded block 212 is inside the threaded groove 214. A fixing rod 217 is fixedly connected to the bottom of the threaded block 212. A cutting tool 207 is fixedly connected to the bottom of the fixing rod 217. A limiting strip 213 is fixedly connected to the outer surface of the fixing rod 217. A limiting strip 216 is fixedly connected to the outer surface of the transmission rod 204. A sleeve 211 is sleeved on the outer surface of the transmission rod 204. A limiting groove 219 is provided on the inner side of the sleeve 211. The top of the limiting strip 213 and the bottom of the limiting strip 216 are both located on the inner side of the limiting groove 219.

[0031] Furthermore, an L-shaped block 209 is fixedly connected to the bottom of the shell 1, a screw hole 2 is opened at the bottom of the L-shaped block 209, a threaded rod 215 is threadedly connected to the inner side of the screw hole 2, a handle 210 is fixedly connected to the bottom end of the threaded rod 215, and a fixing block 208 is fixedly connected to the left and right sides of the sleeve 211, a screw hole 1 218 is opened at the top of the fixing block 208, and the fixing block 208 is threadedly connected to the outer surface of the threaded rod 215. After replacement, the threaded rod 215 is rotated in the reverse direction to make the limiting strip 1 213 enter the limiting groove 219 again, and the fixing rod 217 is limited by the sleeve, the limiting strip 1 213 and the limiting strip 216. By setting the tool to an independent state, when one of the cutting tools 1 207 is damaged, it can be replaced separately, thereby improving the practicality of the device;

[0032] Furthermore, a protective shell 202 is fixedly connected to the right side of the shell 1, a first motor 203 is fixedly connected to the inner side of the protective shell 202, an output shaft is installed on the first motor 203, a worm 205 is fixedly connected to the first motor 203 through the output shaft, a worm wheel 206 is fixedly connected to the outer surface of the transmission rod 204, the rear side of the worm wheel 206 is meshed with the front side of the worm 205, the left end of the worm 205 passes through the right side of the shell 1 and is movably connected to the left side of the shell 1 through a bearing, and the bottom end of the transmission rod 204 is connected to the bottom of the shell 1 through The bearing is movably connected, and three transmission rods 204 are arranged, and the three transmission rods 204 are evenly spaced and distributed at the bottom of the partition 201. In addition, when replacing the cutting tool 207, the operation is simple and convenient, which improves the work efficiency of replacing the tool, and the fixing rod 217 is limited by the sleeve 211, the limit bar 1 213 and the limit bar 216, thereby improving the stability of the cutting tool 207 after installation, avoiding the phenomenon of the cutting tool 207 loosening and falling during use, and increasing the safety of the device.

[0033] Embodiment 2

[0034] Combination Figure 1-5 On the basis of the first embodiment, the heat dissipation mechanism 3 further includes a connecting block 310, the connecting block 310 is fixedly connected to the top of the shell 1, the left side of the connecting block 310 is movably connected with a rotating rod 309 through a bearing, the right end of the rotating rod 309 passes through the connecting block 310, the outer surface of the rotating rod 309 is fixedly connected with a fixed cylinder 308, the outer surface of the fixed cylinder 308 is fixedly connected with heat dissipation blades 307, the heat dissipation blades 307 are distributed in a ring shape on the outer surface of the fixed cylinder 308, the inner side of the shell 1 is fixedly connected with a baffle 304, and the baffle 304 is fixedly connected to the top of the partition 201.

[0035] Furthermore, an air inlet slot 306 is provided at the top of the shell 1, a dustproof net is fixedly connected to the inner side of the air inlet slot 306, a through hole 303 is provided at the top of the partition 201, and the through holes 303 are densely distributed at the top of the partition 201 at equal intervals, and a through slot 305 is provided at the bottom of the shell 1, and a protective net is fixedly connected to the inner side of the through slot 305;

[0036] Furthermore, the rotating rod 309 is movably connected to the left side of the shell 1 through a bearing, the left end of the rotating rod 309 passes through the left side of the shell 1, the outer surface of the rotating rod 309 is fixedly connected to the driven wheel 301, the left end of the worm 205 passes through the left side of the shell 1, the outer surface of the worm 205 is fixedly connected to the driving wheel 302, the outer surface of the driving wheel 302 and the outer surface of the driven wheel 301 are connected through a belt drive, the air outside the shell 1 flows from the outside of the shell 1 to the inside of the shell 1, and an air circulation is formed inside and outside the shell 1, and the hot air in the shell 1 flows to the outside of the shell 1 to achieve the purpose of heat dissipation, the heat dissipation mechanism 3 forms an air circulation inside and outside the shell 1 while the cutting mechanism 2 is working, and under the action of the air circulation, the heat generated by the operation of the parts in the shell 1 is brought out of the shell 1, thereby achieving the purpose of heat dissipation of the device, and by dissipating the heat of the parts in the shell 1, the phenomenon of overheating and damage after long-term use is avoided, thereby increasing the service life of the device.

[0037] Embodiment 3

[0038] Combination Figure 1-5 On the basis of the first and second embodiments, the auxiliary mechanism 4 further includes a top block 405, the top block 405 is fixedly connected to the top of the shell 1, a slide groove is provided on the top of the top block 405, a slider 403 is slidably connected to the inside of the slide groove, a protective shell 404 is fixedly connected to the top of the slider 403, and a second motor 402 is fixedly connected to the inside of the protective shell.

[0039] Furthermore, a mounting plate 407 is fixedly connected to the top of the shell 1, an electric telescopic rod 406 is fixedly connected to the left side of the mounting plate 407, the electric telescopic rod 406 is fixedly connected to the right side of the protective shell 2 404, the second motor 402 is installed with an output shaft, the second motor 402 is fixedly connected to a rotating shaft through the output shaft, a cutting tool 2 401 is fixedly connected to the outer surface of the rotating shaft, the slider 403 and the slide groove are both set to a T shape, the cutting tool 2 401 is rotated to prune the tree, when the pruning position needs to be adjusted, the electric telescopic rod 406 is started, and the extension or shortening of the electric telescopic rod 406 can adjust the cutting position, the auxiliary mechanism 4 is set as a single cutting tool 2 401, and the cutting angle of the cutting tool 2 401 is opposite to the direction of the cutting tool 1 207, so that it can work in a narrow range, and the position of the cutting tool 2 401 can be adjusted under the action of the electric telescopic rod 406, thereby further improving the adaptability of the device.

[0040] In actual operation, when the device is used, the device is first installed on the mechanical arm of the excavator through the conversion shaft 5 and the mounting hole 6. When it is necessary to prune trees, the first motor 203 rotates to drive the worm 205 to rotate, the worm 205 rotates to drive the worm wheel 206 to rotate, the worm wheel 206 rotates to drive the transmission rod 204 to rotate, the transmission rod 204 rotates to drive the cutting tool 1 207 to rotate, and the cutting tool 1 207 cuts and prunes the trees. When one of the tools is damaged, the threaded rod 215 is rotated through the handle 210 to The threaded rod 215 rotates to drive the fixing block 208 to move upward, and the fixing block 208 moves upward to drive the sleeve 211 to move upward until the top of the limiting strip 213 leaves the limiting groove 219. At this time, the cutting tool 207 can be rotated, and the cutting tool 207 can be replaced under the action of the threaded block 212 and the threaded groove 214. After the replacement is completed, the threaded rod 215 is rotated in the opposite direction to make the limiting strip 213 enter the limiting groove 219 again, and the fixing rod 217 is limited by the sleeve, the limiting strip 213 and the limiting strip 216.

[0041] At the same time, the worm 205 rotates and drives the driving wheel 302 to rotate. The driving wheel 302 rotates and drives the driven wheel 301 to rotate through the belt. The driven wheel 301 rotates and drives the rotating rod 309 to rotate. The rotating rod 309 drives the heat dissipation blades 307 to rotate. The heat dissipation blades 307 rotate and drive the air on the left side of the shell 1 to flow to the right side of the shell 1. Under the action of the baffle 304, the air enters the bottom of the partition 201 through the through hole 303. The air at the bottom of the partition 201 is discharged to the outside of the shell 1 through the through groove 305. At this time, the inside of the shell 1 is in a negative pressure state. The air outside the shell 1 flows from the outside of the shell 1 to the inside of the shell 1, forming an air circulation inside and outside the shell 1, and the hot air in the shell 1 flows to the outside of the shell 1, so as to achieve the purpose of heat dissipation.

[0042] When pruning is required on special terrain, the electric telescopic rod 406 is started, and the electric telescopic rod 406 pushes the protective shell 2 404 to move to the left. The movement of the protective shell 2 404 to the left drives the second motor 402 to move to the left. The movement of the second motor 402 to the left drives the cutting tool 2 401 to move to the left. When pruning is performed, the second motor 402 is started, and the second motor 402 drives the rotating shaft to rotate through the output shaft. The rotation of the rotating shaft drives the cutting tool 2 401 to rotate. The cutting tool 2 401 rotates to prune the trees. When the pruning position needs to be adjusted, the electric telescopic rod 406 is started, and the extension or shortening of the electric telescopic rod 406 can adjust the cutting position.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A mowing device for an excavator, comprising a housing (1), characterized in that: A conversion shaft (5) is fixedly connected to the top of the shell (1), mounting holes (6) are provided on both the front and rear sides of the conversion shaft (5), a cutting mechanism (2) is fixedly connected to the inside of the shell (1), an auxiliary mechanism (4) is fixedly connected to the top of the shell (1), and a heat dissipation mechanism (3) is fixedly connected to the inside of the shell (1); The cutting mechanism (2) comprises a partition (201), wherein the partition (201) is fixedly connected to the inner side of the housing (1), and a transmission rod (204) is movably connected to the bottom of the partition (201) via a bearing, a thread groove (214) is provided at the bottom end of the transmission rod (204), a thread block (212) is provided inside the thread groove (214), a fixing rod (217) is fixedly connected to the bottom of the thread block (212), a cutting tool (207) is fixedly connected to the bottom end of the fixing rod (217), a limiting strip (213) is fixedly connected to the outer surface of the fixing rod (217), a limiting strip (216) is fixedly connected to the outer surface of the transmission rod (204), a sleeve (211) is sleeved on the outer surface of the transmission rod (204), a limiting groove (219) is provided inside the sleeve (211), and the top of the limiting strip (213) and the bottom of the limiting strip (216) are both located inside the limiting groove (219); An L-shaped block (209) is fixedly connected to the bottom of the shell (1), a second screw hole is provided at the bottom of the L-shaped block (209), a threaded rod (215) is threadedly connected to the inner side of the second screw hole, a handle (210) is fixedly connected to the bottom end of the threaded rod (215), a fixing block (208) is fixedly connected to the left and right sides of the sleeve (211), a first screw hole (218) is provided at the top of the fixing block (208), and the fixing block (208) is threadedly connected to the outer surface of the threaded rod (215); The right side of the housing (1) is fixedly connected to a protective shell 1 (202), the inner side of the protective shell 1 (202) is fixedly connected to a first motor (203), the first motor (203) is provided with an output shaft, the first motor (203) is fixedly connected to a worm (205) via the output shaft, the outer surface of the transmission rod (204) is fixedly connected to a worm wheel (206), the rear side of the worm wheel (206) is meshed with the front side of the worm wheel (205); The left end of the worm (205) passes through the right side of the housing (1) and is movably connected to the left side of the housing (1) via a bearing, and the bottom end of the transmission rod (204) is movably connected to the bottom of the housing (1) via a bearing, and three transmission rods (204) are provided, and the three transmission rods (204) are evenly spaced and distributed at the bottom of the partition (201); The heat dissipation mechanism (3) comprises a connection block (310), the connection block (310) being fixedly connected to the top of the shell (1), the left side of the connection block (310) being movably connected to a rotating rod (309) via a bearing, the right end of the rotating rod (309) passing through the connection block (310), the outer surface of the rotating rod (309) being fixedly connected to a fixed cylinder (308), the outer surface of the fixed cylinder (308) being fixedly connected to heat dissipation blades (307), the heat dissipation blades (307) being distributed in an annular shape on the outer surface of the fixed cylinder (308), the inner side of the shell (1) being fixedly connected to a baffle (304), the baffle (304) being fixedly connected to the top of the partition (201); The shell (1) is provided with an air inlet slot (306) at the top, a dust screen is fixedly connected to the inside of the air inlet slot (306), the partition (201) is provided with through holes (303) at the top, the through holes (303) are densely distributed at equal intervals on the top of the partition (201), and the shell (1) is provided with a through slot (305) at the bottom, a protective screen is fixedly connected to the inside of the through slot (305).

2. The mowing device for an excavator according to claim 1, characterized in that: The rotating rod (309) is movably connected to the left side of the housing (1) via a bearing, the left end of the rotating rod (309) passes through the left side of the housing (1), the outer surface of the rotating rod (309) is fixedly connected to a driven wheel (301), the left end of the worm (205) passes through the left side of the housing (1), the outer surface of the worm (205) is fixedly connected to a driving wheel (302), and the outer surface of the driving wheel (302) and the outer surface of the driven wheel (301) are connected via a belt drive.

3. The mowing device for an excavator according to claim 2, characterized in that: The auxiliary mechanism (4) comprises a top block (405), the top block (405) being fixedly connected to the top of the shell (1), a slide groove being provided on the top of the top block (405), a slider (403) being slidably connected to the inside of the slide groove, a second protective shell (404) being fixedly connected to the top of the slider (403), and a second motor (402) being fixedly connected to the inside of the protective shell.

4. The mowing device for an excavator according to claim 3, characterized in that: The top of the shell (1) is fixedly connected to a mounting plate (407), the left side of the mounting plate (407) is fixedly connected to an electric telescopic rod (406), and the electric telescopic rod (406) is fixedly connected to the right side of the second protective shell (404).

5. The mowing device for an excavator according to claim 4, characterized in that: The second motor (402) is provided with an output shaft, the second motor (402) is fixedly connected to a rotating shaft via the output shaft, a second cutting tool (401) is fixedly connected to the outer surface of the rotating shaft, and the sliding block (403) and the sliding groove are both arranged in a T-shape.

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