A mowing device and mowing method for landscaping engineering

Abstract

The invention discloses a mowing device and a mowing method for a garden greening project, which relate to the technical field of mowing, and include a vehicle frame and a sawtooth disk, wherein a rotating shaft is arranged on the upper part of the sawtooth disk, a primary crushing chamber is formed on the upper part of the sawtooth disk, a secondary crushing chamber and a discharging chamber are arranged inside the sawtooth disk, and the discharging chamber is connected to a grass collecting box; a primary crushing knife and a secondary crushing knife are arranged on the rotating shaft; a feeding roller is arranged on the vehicle frame at the front side of the sawtooth disk, a rake tooth disk is arranged at the bottom of the feeding roller, a feeding pipe is arranged on the outer side of the feeding roller, a lower opening and an upper opening are arranged on the feeding pipe, a dust suction chamber and a hot air chamber are arranged inside the feeding roller, and a dust collector is arranged on the rear side of the feeding roller; by arranging a primary crushing chamber on the upper part of the sawtooth disk, and arranging a secondary crushing chamber and a discharging chamber inside the sawtooth disk, the sawtooth disk can grade and crush the cut grass stems while mowing the grass, and by arranging a feeding roller on the front side of the sawtooth disk, firstly, the grass stems can be pulled to improve the cutting force and cutting effect, and secondly, the cut grass stems can be transported, dusted and dried, and the overall structure is compact.

Description

Technical Field

[0001] The invention belongs to the technical field of mowing, and in particular relates to a mowing device and a mowing method for gardening and greening projects. Background Art

[0002] Landscape gardening is the creation of a beautiful natural environment and recreational space by using engineering technology and artistic means in a certain area, by transforming the terrain (or further building mountains, stacking stones, and managing water), planting trees, flowers, and plants, creating buildings, and arranging garden paths. Among them, in the maintenance process of landscape gardening projects, mowing devices are one of the main equipment used to take care of lawns and grasses.

[0003] The current mowing devices for landscaping projects, such as hand-pushed mobile mowing devices or cart-mobile mowing devices, generally use a rotating sawtooth disk to trim the lawn and cut off the excess part, so as to keep the grass at a suitable height. However, in the actual implementation process, it is found that there are areas that need to be improved in the current mowing devices for landscaping projects: the collected cut grass stems contain a large number of small stones and soil particles, which makes it inconvenient to directly process the cut grass stems. For example, before the cut grass stems are processed to produce biomass and liquid fertilizer, the grass stems need to be subjected to multiple dust removal processes, which is relatively inefficient; in addition, during the mowing process, if the grass stems are too soft, the sawtooth disk is easy to press over the grass stems, resulting in incomplete cutting. Summary of the invention

[0004] In view of the shortcomings and defects in the prior art, the purpose of the present invention is to provide a mowing device and a mowing method for landscaping projects, which solves the problem that the mowing device in the prior art cannot remove dust and stone particles contained in the cut grass stems, and during the mowing process, if the grass stems are too soft, the serrated disk will easily press over the grass stems, resulting in incomplete cutting.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: a mowing device for landscaping engineering, comprising a frame and a sawtooth disk, the upper part of the sawtooth disk is connected to a rotating shaft, the rotating shaft can be lifted and rotatably arranged on the frame, the upper surface of the sawtooth disk is an arc-shaped disk surface with a concave middle, the arc-shaped disk surface of the upper part of the sawtooth disk forms a primary crushing chamber, and a primary sieve hole is arranged on the arc-shaped disk surface, a cavity is arranged inside the sawtooth disk, the cavity is divided into a secondary crushing chamber and a discharge chamber by a sieve plate, the sieve plate is provided with a secondary sieve hole, and the discharge chamber is connected to a grass collecting box; a primary crushing knife is arranged on the rotating shaft in the primary crushing chamber, and a secondary crushing knife is arranged on the rotating shaft in the secondary crushing chamber;

[0006] A feed roller is provided on the frame which can be lifted and lowered and moved forward and backward. The feed roller is rotatably arranged at the front side of the sawtooth disk and is gradually inclined upward from front to back. A rake tooth disk is provided at the bottom of the feed roller. Spiral blades are spirally arranged on the roller surface of the feed roller. A feed pipe is provided on the outside of the feed roller. The feed pipe is provided with a lower opening at the front side of the feed roller near the lower end, and an upper opening is provided at the rear side of the feed pipe near the upper end. A plurality of blades and a plurality of brushes are provided on the inner wall of the feed pipe. A dust suction chamber is provided near the lower end of the feed roller, the dust suction chamber is connected to the dust suction device, and dust suction holes are provided on the outer wall of the dust suction chamber. A hot air chamber is provided near the upper end of the feed roller, the hot air chamber is connected to the hot air blower, and ventilation holes are provided on the outer wall of the hot air chamber. A dust collector is provided on the rear side of the feed roller, and the dust suction port of the dust collector faces the upper opening of the feed pipe.

[0007] As a further improvement of the present invention, a support frame is provided on the frame, a lifting device is provided under the support frame, the upper end of the rotating shaft is connected to the lifting device through a connecting plate, and the upper end of the rotating shaft extends out of the connecting plate and is connected to the first motor.

[0008] As a further improvement of the present invention, an exhaust fan is provided in the grass collection box, the lower part of the rotating shaft extends into the discharge chamber, an extraction cavity is provided inside the rotating shaft, the extraction cavity connects the discharge chamber and the grass collection box, and the exhaust port of the exhaust fan faces the extraction cavity.

[0009] As a further improvement of the present invention, a slider is slidably connected to the frame forward and backward, the lower part of the slider is connected to the connecting seat through a first up and down telescopic device, the feed roller is rotatably connected to the connecting seat, and the upper end of the feed roller is connected to the second motor.

[0010] As a further improvement of the present invention, the connecting seat includes a fixed plate, a lower connecting plate and an upper connecting plate. There are two upper connecting plates, which are respectively fixed at the bottom of the first upper and lower telescopic devices. The lower connecting plate is clamped between the two upper connecting plates, and the lower connecting plate and the upper connecting plate are connected by a connecting shaft. The connecting shaft is rotatably connected to the upper connecting plate, and one end of the connecting shaft is connected to the third motor. The connecting shaft is fixedly connected to the lower connecting plate, the fixed plate is fixed below the lower connecting plate, and the feed roller is rotatably connected to the fixed plate, and the second motor is fixed on the fixed plate.

[0011] As a further improvement of the present invention, a rotating fan is provided between the dust collector and the upper opening of the feed conveying pipe.

[0012] As a further improvement of the present invention, a dust collecting box is provided at the lower side of the conveying pipe, and the upper side of the dust collecting box is an arc-shaped plate inclined toward the rear side, and the arc-shaped plate is provided with dust holes.

[0013] As a further improvement of the present invention, the cross-sectional shape of the dust suction port of the vacuum cleaner is wavy, and a protective net is provided on the dust suction port.

[0014] As a further improvement of the present invention, a support rod is provided on the frame below the sawtooth disk, a second up and down telescopic device is provided above the support rod, and the sawtooth disk is rotatably connected to the upper end of the second up and down telescopic device.

[0015] A method for mowing grass using a mowing device for landscaping engineering includes the following steps:

[0016] 1) Grasping grass stems: Turn on the main switch of the cutting device, the feed roller and the sawtooth disc start to rotate, and the dust collection device, hot air blower, vacuum cleaner and exhaust fan start to work; push the frame forward, the front side of the rake teeth hooks the grass stems, the rotating feed roller wraps around the upper end of the grass stems, so that the grass stems are straightened at the cutting point, and the rotating sawtooth disc cuts the grasped grass stems;

[0017] 2) Dust removal and transportation of cut grass stems: The cut grass stems are transported upward to the upper opening of the conveying pipe by the conveying roller through the rake tooth plate. When the grass stems enter the bottom of the conveying pipe, the conveying pipe can block the large stones and mud blocks on the grass stems. When the conveying roller continues to transport the grass stems upward, the dust suction chamber on the lower side can absorb the dust and dew on the grass stems. After that, the hot air chamber blows hot air to the grass stems;

[0018] When the feeding roller is conveying grass stems, the blades on the inner wall of the feeding tube can initially cut the grass stems, and the brushes on the inner wall of the feeding tube can brush off the dust adhering to the grass stems;

[0019] 3) Further dust removal, transportation and primary crushing of the cut grass stems: The grass stems are unloaded from the upper opening of the conveying pipe, and when unloading, the dust in the grass stems is sucked out by the suction port of the vacuum cleaner. After that, the grass stems fall down into the primary crushing chamber on the upper part of the sawtooth disk; and in the process of the grass stems falling and in the primary crushing chamber, the grass stems are crushed by the primary crushing knife. In the crushing process, small pieces of grass stems pass through the primary sieve holes and enter the secondary crushing chamber;

[0020] 4) Secondary crushing and discharging of grass stems: The grass stems entering the secondary crushing chamber are crushed by the secondary crushing knife. After crushing, the grass stems that meet the conditions enter the discharging chamber through the secondary sieve holes. The crushed grass stems in the discharging chamber are transported to the grass collecting box.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] The upper surface of the sawtooth disk is set as an arc disk surface with a concave middle, the arc disk surface on the upper part of the sawtooth disk forms a primary crushing chamber, and a primary sieve hole is set on the arc disk surface, a secondary crushing chamber and a discharging chamber are set inside the sawtooth disk, and a primary crushing knife and a secondary crushing knife are set on the rotating shaft; a feeding roller is set on the frame, a rake tooth disk is set at the bottom of the feeding roller, a feeding pipe is set outside the feeding roller, a lower opening and an upper opening are set on the feeding pipe, a dust suction chamber and a hot air chamber are set inside the feeding roller, and a dust collector is set on the rear side of the feeding roller; before mowing, the position of the feeding roller is adjusted, and when mowing, the frame is pushed forward to first feed the material The rake tooth disk on the roller first hooks the grass stem to be cut during the rotation and forward process, and then the grass stem is wrapped around the feed roller, and then the sawtooth disk cuts the wrapped grass stem on the front side. Because the upper end of the grass stem is wrapped around the feed roller during cutting, the feed roller has a pulling and straightening effect on the grass stem, which makes it easier for the sawtooth disk to directly cut the grass stem, thereby improving the cutting force and cutting effect, and avoiding the phenomenon that the sawtooth disk presses down the grass stem and deforms it because there is no pulling on the upper end of the grass stem during cutting, thereby avoiding the problem of incomplete cutting and inconsistent height of the grass stem after cutting. After the sawtooth disk has cut the grass stems, the rotating feed roller transports the cut grass stems upward. During the transportation process, the dust suction chamber is used to absorb the grass stems on the one hand to prevent the grass stems from falling and increase the pulling force on the grass stems, and on the other hand to absorb and remove dust particles, impurities, dew and moisture on the grass stems. In addition, during the upward transportation, the bottom port of the feed pipe can also block large pieces of granular impurities in the grass stems, so as to achieve the purpose of removing impurity particles; when the grass stems are further transported upward to the position of the hot air chamber, the hot air in the hot air chamber is used to heat the grass stems on the one hand to make the wet and sticky dust on the grass stems dry and fall off, and on the other hand to loosen the grass stems to prevent the grass stems from being clumped together, which is convenient for removing dust in the grass stems, and on the other hand to blow the grass stems outwards, which is conducive to the unloading of the grass stems at the upper opening of the feed pipe and prevents the grass stems from adhering to the feed roller. In addition, when the feed roller conveys the grass stems upward, the blade on the feed pipe is used to perform preliminary cutting on the grass stems, thereby improving the entire cutting process of the grass stems and reducing grass stem blockage. In addition, the brush on the feed pipe can further remove particles on the grass stems, making it easier for the dust suction chamber to suck them away, thereby improving the removal effect of dust and stone particles in the grass stems. The feed roller plays a variety of roles, including pulling the grass stems, removing dust, conveying the grass stems, and cutting the grass stems.

[0023] When the grass stems are transported to the upper opening at the upper end of the conveying pipe, the grass stems are discharged downward from the upper opening of the conveying pipe into the primary crushing chamber on the upper part of the sawtooth disk, and in the process of the grass stems falling, the vacuum cleaner can further absorb the dust in the grass stems. In addition, in the falling process and in the primary crushing chamber, the primary crushing knife can cut and crush the grass stems. In the cutting process, small-sized grass stems fall into the secondary crushing chamber and are crushed by the secondary crushing knife in the secondary crushing chamber. After that, grass stems that meet the size fall into the discharge chamber and are finally collected by the grass collection box.

[0024] During the whole process, dust removal, mowing, and crushing of cut grass stems are carried out simultaneously, which is not only highly efficient, but also has a compact overall structure and cooperates with each other, so that each component can play a variety of roles.

[0025] Able to perform multiple functions simultaneously.

[0026] 2. By arranging an exhaust fan in the grass collection box, the lower part of the rotating shaft extends into the discharge chamber, and an extraction chamber is arranged inside the rotating shaft. The extraction chamber connects the discharge chamber and the grass collection box. The exhaust port of the exhaust fan faces into the extraction pipe. When the exhaust fan is turned on, the grass stems in the discharge chamber can be extracted into the grass collection box, thereby completing the collection of the grass stems.

[0027] 3. By setting the connecting seat as a structure of a fixed plate, a lower connecting plate and an upper connecting plate, the lower connecting plate and the upper connecting plate are connected by a connecting shaft, and one end of the connecting shaft is connected to the third motor, the connecting shaft can be driven to rotate by the third motor, so that the inclination angle of the feed roller can be adjusted, so that the multi-directional position of the feed roller can be adjusted according to actual conditions, so that the material transported on the feed roller falls into the primary crushing chamber.

[0028] 3. By slidingly setting a slider on the frame, the lower part of the slider is connected to the connecting seat through the first up and down telescopic device, the feed roller is rotatably connected to the connecting seat, and the upper end of the feed roller is connected to the second motor, then the second motor can drive the feed roller to rotate, the movement of the slider can drive the feed roller to slide back and forth to adjust its position, and the first up and down telescopic device can drive the feed roller to move up and down, then in actual use, the position of the feed roller can be adjusted according to the height of the grass stems or other conditions.

[0029] 4. By arranging a rotating fan between the vacuum cleaner and the upper opening of the feeding pipe, the rotating fan can fan the grass stems coming out of the upper opening of the feeding pipe. Firstly, it can prevent the grass stems from falling quickly to a certain extent, increase the residence time of the grass stems at the suction port, and improve the dust removal effect; secondly, it can stir the grass stems to facilitate the falling and removal of dust on the grass stems; thirdly, it can loosen the grass stems, making it easier for the vacuum cleaner to absorb the dust trapped in the grass stems.

[0030] 5. A dust collecting box is arranged on the lower side of the conveying pipe, and the upper side of the dust collecting box is an arc-shaped plate inclined toward the rear side, and dust holes are arranged on the arc-shaped plate. The dust collecting box can firstly guide the falling grass stems toward the center of the sawtooth disk; secondly, it can reduce the falling speed of the grass stems to reduce the impact on the sawtooth disk and improve the stability of the sawtooth disk; thirdly, in the process of the grass stems sliding downward, the residual dust on the grass stems can be screened off to improve the dust removal effect.

[0031] 6. By setting the cross-sectional shape of the suction port of the vacuum cleaner to a wave shape, the overall surface adsorption area is increased, thereby improving the dust removal effect.

[0032] 7. A support rod is provided on the frame below the sawtooth disk, a second up and down telescopic device is provided above the support rod, and the sawtooth disk is rotatably connected to the upper end of the second up and down telescopic device. Therefore, the sawtooth disk can be supported at the bottom to improve the stability of the sawtooth disk.

[0033] 8. By using a mowing device for landscaping engineering to mow the grass, the mowing, removal of dust particles and impurities in the grass stems, and the grading and drying of the grass stems can be completed simultaneously, thereby improving the overall processing efficiency of the grass stems, saving process steps, and being more economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention will be further described below in conjunction with the accompanying drawings:

[0035] Figure 1 It is a structural schematic diagram of the present invention;

[0036] Figure 2 for Figure 1 A magnified view at point A;

[0037] Figure 3 for Figure 2 A partial side view of

[0038] Figure 4 It is a schematic diagram of the structure inside the feed roller;

[0039] Figure 5 for Figure 1 Enlarged view at B;

[0040] Figure 6 for Figure 1 Enlarged view at C;

[0041] Figure 7 It is a structural schematic diagram of the rake tooth disc;

[0042] In the figure: 1, frame; 101, chassis frame; 102, vertical frame; 103, hanger; 104, walking wheel; 105, handrail; 2, sawtooth disc; 3, rotating shaft; 4, primary crushing chamber; 5, primary sieve hole; 6, sieve plate; 7, secondary crushing chamber; 701, disc body; 702, rake teeth; 8, discharge chamber; 9, secondary sieve hole; 10, primary crushing knife; 11, secondary crushing knife; 12, feeding roller; 13, feeding pipe; 14, rake tooth disc; 15, lower opening; 16, upper opening; 18, dust suction chamber; 19, dust suction hole; 2 0. Hot air chamber; 21. Ventilation hole; 22. Vacuum cleaner; 23. Support frame; 24. Lifting device; 25. Connecting plate; 26. First motor; 27. Exhaust fan; 28. Extraction cavity; 29. ​​Sliding block; 30. First up and down telescopic device; 31. Second motor; 32. Fixed plate; 33. Lower connecting plate; 34. Upper connecting plate; 35. Connecting shaft; 36. Third motor; 38. Rotating fan; 39. Dust collecting box; 40. Support rod; 41. Second up and down telescopic device; 42. Dust-through hole; 43. Connecting support; 44. Support plate. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-7 The present invention is further described in detail. For a clearer illustration, only the structures related to the inventive point of the present invention are shown in the figure.

[0044] For the convenience of description, the coordinate system is defined as Figure 1 As shown, the forward direction of the frame is regarded as the front, and the backward direction of the frame is regarded as the rear.

[0045] The embodiment of the present invention discloses a mowing device for landscaping engineering. Figure 1 A mowing device for landscaping engineering includes a frame 1 and a sawtooth disk 2. The frame 1 mainly includes a chassis frame 101, a vertical frame 102 and a hanger 103. Walking wheels 104 are arranged on the left and right sides of the chassis frame 101. The vertical frame 102 is welded to the rear side of the chassis frame 101. The hanger 103 is welded to the front side of the upper end of the vertical frame 102. A handrail 105 is arranged on the rear side of the vertical frame 102.

[0046] like Figure 1 and Figure 6 As shown, the upper part of the sawtooth disk 2 is connected to the rotating shaft 3, and the rotating shaft 3 is arranged on the frame 1 in a liftable and rotatable manner. Specifically, the frame 1 is provided with a support frame 23, and a lifting device 24 is arranged below the support frame 23. The upper end of the rotating shaft 3 is connected to the lifting device 24 through a connecting plate 25, and the upper end of the rotating shaft 3 extends out of the connecting plate 25 and is connected to the first motor 26. In addition, as Figure 5As shown, the frame 1 is further provided with a support rod 40 below the sawtooth disk 2, and a second up-down telescopic device 41 is provided above the support rod 40, and the sawtooth disk 2 is rotatably connected to the upper end of the second up-down telescopic device 41. The support rod 40 and the second up-down telescopic device 41 support the sawtooth disk 2 at the bottom to improve the stability of the sawtooth disk 2.

[0047] like Figure 1 and Figure 5 As shown, the upper surface of the sawtooth disk 2 is an arc-shaped disk surface with a concave middle portion, the arc-shaped disk surface at the upper portion of the sawtooth disk 2 forms a primary crushing chamber 4, and a primary sieve hole 5 is provided on the arc-shaped disk surface, a cavity is provided inside the sawtooth disk 2, and the cavity is divided into a secondary crushing chamber 7 and a discharge chamber 8 by a sieve plate 6, and a secondary sieve hole 9 is provided on the sieve plate 6, and the discharge chamber 8 is connected to the grass collecting box; a primary crushing knife 10 is provided on the rotating shaft 3 in the primary crushing chamber 4, and a secondary crushing knife 11 is provided on the rotating shaft 3 in the secondary crushing chamber 7. In addition, an exhaust fan 27 (not shown in the attached figure) is provided in the grass collecting box, as shown in FIG. Figure 1 and Figure 5 As shown, the lower part of the rotating shaft 3 extends into the discharge cavity 8, and an extraction cavity 28 is provided inside the rotating shaft 3, and the extraction cavity 28 connects the discharge cavity 8 with the grass collecting box, and the suction port of the exhaust fan 27 faces the extraction cavity 28. By arranging the exhaust fan 27 in the grass collecting box, the lower part of the rotating shaft 3 extends into the discharge cavity 8, and an extraction cavity 28 is provided inside the rotating shaft 3, and the extraction cavity 28 connects the discharge cavity 8 with the grass collecting box, and the suction port of the exhaust fan 27 faces the suction pipe, and the exhaust fan 27 is turned on, so that the grass stems in the discharge cavity 8 can be drawn into the grass collecting box, and the grass stems are collected.

[0048] In addition, if Figure 1 As shown, the frame 1 is provided with a feed roller 12 which can be raised and lowered and can move forward and backward. The feed roller 12 is rotatably arranged in front of the sawtooth disk 2 and is gradually inclined upward from front to back. Figure 2 As shown, a slider 29 is connected to the frame 1 for sliding forward and backward movement, and a driving motor (not shown in the drawings) for driving the slider 29 can be connected, and the lower part of the slider 29 is connected to the connecting seat through a first vertical telescopic device 30, and the feed roller 12 is rotatably connected to the connecting seat, and the upper end of the feed roller 12 is connected to the second motor 31. Then the second motor 31 can drive the feed roller 12 to rotate, and the movement of the slider 29 can drive the feed roller 12 to slide forward and backward to adjust the position, and the first vertical telescopic device 30 can drive the feed roller 12 to move up and down, so that in actual use, the position of the feed roller 12 can be adjusted according to the height of the grass stem or other conditions.

[0049] In addition, if Figure 2 and Figure 3As shown, the connecting seat includes a fixed plate 32, a lower connecting plate 33 and an upper connecting plate 34. There are two upper connecting plates 34, which are respectively fixed to the bottom of the first upper and lower telescopic device 30. The lower connecting plate 33 is clamped between the two upper connecting plates 34, and the lower connecting plate 33 and the upper connecting plate 34 are connected by a connecting shaft 35. The connecting shaft 35 is rotatably connected to the upper connecting plate 34, and one end of the connecting shaft 35 is connected to the third motor 36. The third motor 36 is fixed on the upper connecting plate 34, the connecting shaft 35 is fixedly connected to the lower connecting plate 33, the fixed plate 32 is fixed below the lower connecting plate 33, and the feed roller 12 is rotatably connected to the fixed plate 32, and the second motor 31 is fixed on the fixed plate 32. During operation, the third motor 36 can drive the connecting shaft 35 to rotate, thereby driving the fixed plate 32 and the feed roller 12 to rotate as a whole, and then adjusting the inclination angle of the feed roller 12, so that the multi-directional position of the feed roller 12 can be adjusted according to actual conditions, so that the material transported on the feed roller 12 falls into the primary crushing chamber 4.

[0050] In addition, if Figure 1 As shown, the bottom of the feeding roller 12 is provided with a rake tooth plate 14. Figure 7 As shown, the rake tooth disc 14 includes a disc body 701 and rake teeth 702 . The disc body 701 is circular in shape, and the rake teeth 702 are arranged around the disc body 701 .

[0051] like Figure 1 and Figure 2 As shown, the roller surface of the feed roller 12 is spirally provided with spiral blades, and the outer side of the feed roller 12 is provided with a feed pipe 13. The feed roller 12 and the feed pipe 13 form a dragon-like structure. The feed pipe 13 is provided with a lower opening 15 near the lower end of the front side of the feed roller 12, and an upper opening 16 near the upper end of the rear side of the feed pipe 13. The upper opening 16 is located above the primary crushing chamber 4. The inner wall of the feed pipe 13 is provided with a plurality of blades (not shown in the drawings) and a plurality of brushes (not shown in the drawings). The blades and brushes can be spirally provided on the inner wall of the feed pipe 13, and the blades and brushes do not interfere with the spiral blades on the feed roller 12. Figure 4 As shown, a dust suction chamber 18 is provided near the lower end of the feed roller 12, and the dust suction chamber 18 is connected to a dust suction device (not shown in the attached figure), and a dust suction hole 19 is provided on the outer wall of the dust suction chamber 18. The dust suction device can be a common dust suction device in the prior art, and the dust suction device can be arranged on the outer side or the inner side of the dust suction chamber 18. A hot air chamber 20 is provided near the upper end of the feed roller 12, and the hot air chamber 20 is connected to a hot air blower (not shown in the attached figure), and the hot air blower is a conventional prior art, and the hot air blower can be arranged on the outer side or the inner side of the dust suction chamber 18, and a vent hole 21 is provided on the outer wall of the hot air chamber 20.

[0052] In addition, if Figure 1 and Figure 2As shown, a vacuum cleaner 22 is provided at the rear side of the feeding roller 12, and the suction port of the vacuum cleaner 22 faces the upper opening 16 of the feeding pipe 13. In the specific configuration, the cross-sectional shape of the suction port of the vacuum cleaner 22 is wavy, which increases the overall surface adsorption area, thereby improving the dust removal effect. In addition, a protective net (not shown in the figure) is provided on the suction port to prevent grass stems from entering the suction port.

[0053] In addition, if Figure 1 and Figure 2 As shown, a rotating fan 38 is provided between the vacuum cleaner 22 and the upper opening 16 of the feed pipe 13. The rotating fan 38 can be rotatably arranged on the hanger 103 on the top of the frame 1 through two support plates 44. When in use, the rotating fan 38 can fan the grass stems coming out of the upper opening 16 of the feed pipe 13. First, it can prevent the grass stems from falling quickly to a certain extent, increase the residence time of the grass stems at the suction port, and improve the dust removal effect; second, it can stir the grass stems to facilitate the removal of dust on the grass stems; third, it can loosen the grass stems, making it easier for the vacuum cleaner 22 to absorb the dust trapped in the grass stems.

[0054] In addition, if Figure 1 and Figure 6 As shown, a dust collecting box 39 is provided at the lower side of the feeding pipe 13, and the upper side of the dust collecting box 39 is an arc-shaped plate inclined to the rear side, and a dust-permeable hole 42 is provided on the arc-shaped plate. The dust collecting box 39 is fixed to the hanger 103 at the top of the frame 1 through two vertical connecting supports 43. The dust collecting box 39 firstly guides the falling grass stems toward the direction close to the center of the sawtooth disk 2; secondly, reduces the falling speed of the grass stems to reduce the impact on the sawtooth disk 2 and improve the stability of the sawtooth disk 2; thirdly, in the process of the grass stems sliding downward, the residual dust on the grass stems can be screened off to improve the dust removal effect.

[0055] The main technical effects and implementation principles of the present invention are as follows: the upper surface of the sawtooth disk 2 is set to be an arc-shaped disk surface with a concave middle, the arc-shaped disk surface on the upper part of the sawtooth disk 2 forms a primary crushing chamber 4, and a primary sieve hole 5 is set on the arc-shaped disk surface, a secondary crushing chamber 7 and a discharging chamber 8 are set inside the sawtooth disk 2, and a primary crushing knife 10 and a secondary crushing knife 11 are set on the rotating shaft 3; and a feeding roller 12 is set on the frame 1, a rake tooth disk 14 is set at the bottom of the feeding roller 12, a feeding pipe 13 is set outside the feeding roller 12, and a lower opening 15 and an upper opening 16 are set on the feeding pipe 13, a dust suction chamber 18 and a hot air chamber 20 are set inside the feeding roller 12, and a dust collector 22 is set on the rear side of the feeding roller 12; before mowing, adjust the feeding roller The position of the roller 12, when mowing the grass, push the frame 1 forward, first the rake tooth disk 14 on the feed roller 12 hooks the grass stem to be cut during the rotation and forward movement, then the grass stem is wrapped around the feed roller 12, and then the sawtooth disk 2 cuts the wrapped grass stem on the front side, because when cutting, the upper end of the grass stem is wrapped around the feed roller 12, so the feed roller 12 has a pulling and straightening effect on the grass stem, which makes it easier for the sawtooth disk 2 to directly cut the grass stem, thereby improving the cutting force and cutting effect, and avoiding the phenomenon that the sawtooth disk 2 presses down the grass stem to deform due to the lack of pulling on the upper end of the grass stem during cutting, thereby avoiding the problem of incomplete cutting and the problem of inconsistent height of the grass stem after cutting.

[0056] After the sawtooth disk 2 has cut the grass stems, the rotating feed roller 12 transports the cut grass stems upward. During the transportation process, the dust suction chamber 18 is used to absorb the grass stems on the one hand to prevent the grass stems from falling and increase the pulling force on the grass stems, and on the other hand to absorb and remove dust particles, impurities, dew and moisture on the grass stems. In addition, during the upward transportation process, the bottom port of the feed pipe 13 can also block large pieces of granular impurities in the grass stems, thereby achieving the purpose of removing impurity particles; when the grass stems are further transported upward to the position of the hot air chamber 20, the hot air in the hot air chamber 20 is used to heat the grass stems on the one hand to make the wet and sticky dust attached to the grass stems dry and fall off, and on the other hand to loosen the grass stems to prevent the grass stems from being clumped together, thereby facilitating the removal of dust in the grass stems, and on the other hand to blow the grass stems outwards, which is conducive to the unloading of the grass stems at the upper opening 16 of the feed pipe 13 and prevents the grass stems from adhering to the feed roller 12. In addition, when the feed roller 12 is conveying the grass stems upward, the blade on the feed pipe 13 is used to perform preliminary cutting on the grass stems, thereby improving the entire cutting process of the grass stems and reducing grass stem blockage. In addition, the brush on the feed pipe 13 can further remove particles on the grass stems, making it easier for the dust chamber 18 to suck them away, thereby improving the removal effect of dust and stone particles in the grass stems. The feed roller 12 has multiple functions of pulling the grass stems, removing dust, conveying the grass stems, and cutting the grass stems.

[0057] When the grass stems are transported to the upper opening 16 at the upper end of the conveying pipe 13, the grass stems are discharged downward from the upper opening 16 of the conveying pipe 13 into the primary crushing chamber 4 on the upper part of the serrated disk 2, and in the process of the grass stems falling, the vacuum cleaner 22 can further absorb the dust in the grass stems. In addition, in the falling process and in the primary crushing chamber 4, the primary crushing knife 10 can cut and crush the grass stems. In the cutting process, small-sized grass stems fall into the secondary crushing chamber 7 and are crushed by the secondary crushing knife 11 in the secondary crushing chamber 7. After that, grass stems that meet the size fall into the discharge chamber 8 and are finally collected by the grass collection box.

[0058] During the whole process, dust removal, mowing, and crushing of cut grass stems are carried out simultaneously, which is not only highly efficient, but also has a compact overall structure and cooperates with each other, so that each component can play a variety of roles.

[0059] Able to perform multiple functions simultaneously.

[0060] A method for mowing grass using a mowing device for landscaping engineering includes the following steps:

[0061] 1) Grasping grass stems: Turn on the main switch of the cutting device, the feed roller 12 and the sawtooth disk 2 start to rotate, and the dust collection device, the hot air blower, the dust collector 22 and the exhaust fan 27 start to work; push the frame 1 forward, the front side of the rake teeth 702 hooks the grass stems, the rotating feed roller 12 wraps around and grasps the upper end of the grass stems, so that the grass stems are straightened at the cutting position, and the rotating sawtooth disk 2 cuts the grasped grass stems;

[0062] 2) Dust removal and transportation of cut grass stems: The cut grass stems are transported upward to the upper opening 16 of the conveying pipe 13 by the conveying roller 12 through the rake tooth plate 14. When the grass stems enter the bottom end of the conveying pipe 13, the conveying pipe 13 can block the large stones and mud blocks on the grass stems. When the conveying roller 12 continues to transport the grass stems upward, the dust suction chamber 18 can absorb the dust and dew on the grass stems at the lower side. After that, the hot air chamber 20 blows hot air to the grass stems;

[0063] When the feeding roller 12 is feeding the grass stems, the blades on the inner wall of the feeding pipe 13 can initially cut the grass stems, and the brushes on the inner wall of the feeding pipe 13 can brush off the dust adhering to the grass stems;

[0064] 3) Further dust removal, transportation and primary crushing of the cut grass stems: the grass stems are unloaded from the upper opening 16 of the conveying pipe 13, and when unloading, the dust suction port of the dust collector 22 sucks away the residual dust contained in the grass stems, and then the grass stems fall downward into the primary crushing chamber 4 on the upper part of the sawtooth disk 2; and in the process of the grass stems falling and in the primary crushing chamber 4, the grass stems are crushed by the primary crushing knife 10, and in the crushing process, small pieces of grass stems pass through the primary sieve hole 5 and enter the secondary crushing chamber 7;

[0065] 4) Secondary crushing and discharging of grass stems: The grass stems entering the secondary crushing chamber 7 are crushed by the secondary crushing knife 11. After crushing, the grass stems that meet the conditions enter the discharging chamber 8 through the secondary sieve hole 9. The crushed grass stems in the discharging chamber 8 are transported to the grass collecting box.

[0066] By using a mowing device for landscaping engineering to mow the grass, the mowing, removal of dust particles and impurities in the grass stems, and the grading and drying of the grass stems can be completed simultaneously, thereby improving the overall processing efficiency of the grass stems, saving process steps, and being more economical. In addition, the setting of the hot air chamber to blow air to the grass stems is used, on the one hand, to keep the grass stems dry and prevent the grass stems from getting wet and sticky, and on the other hand, to blow dry the dust adhering to the grass stems, which is convenient for the subsequent removal of the dust on the grass stems. Thirdly, it is used to loosen the grass stems, help the grass stems to separate from the feeding roller 12 at the upper opening 16, and when the grass stems pass through the vacuum cleaner 22, it helps the residual dust to separate from the grass stems and be sucked away by the vacuum cleaner 22.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A mowing device for landscaping engineering, comprising a frame and a sawtooth disc, characterized in that: The upper part of the sawtooth disk is connected to a rotating shaft, and the rotating shaft can be lifted and rotated on the frame. The upper surface of the sawtooth disk is an arc-shaped disk surface with a concave middle portion. The arc-shaped disk surface at the upper part of the sawtooth disk forms a primary crushing chamber, and a primary sieve hole is arranged on the arc-shaped disk surface. A cavity is arranged inside the sawtooth disk, and the cavity is divided into a secondary crushing chamber and a discharging chamber by a sieve plate. The sieve plate is provided with a secondary sieve hole, and the discharging chamber is connected to the grass collecting box; a primary crushing knife is arranged in the primary crushing chamber on the rotating shaft, and a secondary crushing knife is arranged in the secondary crushing chamber on the rotating shaft; A feeding roller is provided on the frame which can be lifted and moved forward and backward. The feeding roller is rotatably arranged at the front side of the sawtooth disk and is gradually inclined upward from front to back. A rake tooth disk is provided at the bottom of the feeding roller. Spiral blades are spirally arranged on the roller surface of the feeding roller. A feeding pipe is provided on the outer side of the feeding roller. The feeding pipe is provided with a lower opening at the front side of the feeding roller near the lower end, and an upper opening is provided at the rear side of the feeding pipe near the upper end. A plurality of blades and a plurality of brushes are provided on the inner wall of the feeding pipe. A dust suction chamber is provided near the lower end of the feeding roller, the dust suction chamber is connected to the dust suction device, and a dust suction hole is provided on the outer wall of the dust suction chamber. A hot air chamber is provided near the upper end of the feeding roller, the hot air chamber is connected to the hot air blower, and a ventilation hole is provided on the outer wall of the hot air chamber. A dust collector is provided on the rear side of the feeding roller, and the dust suction port of the dust collector faces the upper opening of the feeding pipe. The frame is connected with a slider for front and rear sliding movement, the lower part of the slider is connected with the connecting seat through a first up and down telescopic device, the feed roller is rotatably connected with the connecting seat, and the upper end of the feed roller is connected with the second motor; The connecting seat includes a fixed plate, a lower connecting plate and an upper connecting plate. There are two upper connecting plates, which are respectively fixed at the bottom of the first upper and lower telescopic devices. The lower connecting plate is clamped between the two upper connecting plates, and the lower connecting plate and the upper connecting plate are connected by a connecting shaft. The connecting shaft is rotatably connected to the upper connecting plate, and one end of the connecting shaft is connected to the third motor. The connecting shaft is fixedly connected to the lower connecting plate, the fixed plate is fixed below the lower connecting plate, and the feed roller is rotatably connected to the fixed plate, and the second motor is fixed on the fixed plate.

2. A mowing device for landscaping engineering according to claim 1, characterized in that: A support frame is provided on the frame, a lifting device is provided below the support frame, the upper end of the rotating shaft is connected to the lifting device through a connecting plate, and the upper end of the rotating shaft extends out of the connecting plate and is connected to the first motor.

3. A mowing device for landscaping engineering according to claim 1, characterized in that: The lower part of the rotating shaft extends into the discharge cavity, and a draw-out cavity is arranged inside the rotating shaft. The draw-out cavity connects the discharge cavity and the grass collecting box. An exhaust fan is arranged in the grass collecting box, and an exhaust port of the exhaust fan faces the draw-out cavity.

4. A mowing device for landscaping engineering according to claim 1, characterized in that: A rotating fan is arranged between the dust collector and the upper opening of the material conveying pipe.

5. The mowing device for landscaping engineering according to claim 1, characterized in that: A dust collecting box is arranged at the lower side of the conveying pipe, and the upper side of the dust collecting box is an arc-shaped plate inclined toward the rear side, and a dust penetration hole is arranged on the arc-shaped plate.

6. A mowing device for landscaping engineering according to claim 1, characterized in that: The cross-sectional shape of the dust suction port of the vacuum cleaner is wave-shaped, and a protective net is arranged on the dust suction port.

7. A mowing device for landscaping engineering according to any one of claims 1 to 6, characterized in that: A support rod is also provided on the frame below the sawtooth disk, a second up and down telescopic device is provided above the support rod, and the sawtooth disk is rotatably connected to the upper end of the second up and down telescopic device.

8. A method for mowing grass using the mowing device for landscaping engineering as claimed in claim 1, characterized in that: The steps include: 1) Grasping grass stems: Turn on the main switch of the cutting device, the feed roller and the sawtooth disc start to rotate, and the dust collection device, hot air blower, vacuum cleaner and exhaust fan start to work; push the frame forward, the front side of the rake teeth hooks the grass stems, the rotating feed roller wraps around the upper end of the grass stems, so that the grass stems are straightened at the cutting point, and the rotating sawtooth disc cuts the grasped grass stems; 2) Dust removal and transportation of cut grass stems: The cut grass stems are transported upward to the upper opening of the conveying pipe by the conveying roller through the rake tooth plate. When the grass stems enter the bottom of the conveying pipe, the conveying pipe can block the large stones and mud blocks on the grass stems. When the conveying roller continues to transport the grass stems upward, the dust suction chamber on the lower side can absorb the dust and dew on the grass stems. After that, the hot air chamber blows hot air to the grass stems; When the feeding roller is conveying grass stems, the blades on the inner wall of the feeding tube can initially cut the grass stems, and the brushes on the inner wall of the feeding tube can brush off the dust adhering to the grass stems; 3) Further dust removal, transportation and primary crushing of the cut grass stems: The grass stems are unloaded from the upper opening of the conveying pipe, and when unloading, the dust in the grass stems is sucked out by the suction port of the vacuum cleaner. After that, the grass stems fall down into the primary crushing chamber on the upper part of the sawtooth disk; and in the process of the grass stems falling and in the primary crushing chamber, the grass stems are crushed by the primary crushing knife. In the crushing process, small pieces of grass stems pass through the primary sieve holes and enter the secondary crushing chamber; 4) Secondary crushing and discharging of grass stems: The grass stems entering the secondary crushing chamber are crushed by the secondary crushing knife. After crushing, the grass stems that meet the conditions enter the discharging chamber through the secondary sieve holes. The crushed grass stems in the discharging chamber are transported to the grass collecting box.

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