A lawn mower

Abstract

The present invention provides a weeder, comprising a walking mechanism, a rotating mechanism, a boom mechanism and an operating room; the walking mechanism comprises a chassis, the rotating mechanism comprises a mounting platform; the mounting platform is rotatably connected to the chassis and is driven to rotate; the operating room is arranged at the front end of the mounting platform, the boom mechanism is arranged at the front end of the mounting platform and is located beside the operating room, and a weeding head is installed at the end of the boom mechanism through a hooking device. The weeder of the present invention rotates the mounting platform through the rotating mechanism so that the boom mechanism faces the ditch, which is convenient for the operator to operate.

Description

Technical Field

[0001] The invention belongs to the field of agricultural machinery, and in particular relates to a weeder. Background Art

[0002] In order to prevent the ditches from being blocked, they need to be maintained regularly every year, and weeding is part of the maintenance work. In large-scale intensive agriculture, weeders are used for large-scale ditch weeding.

[0003] The existing lawn mowers require the operator to drive the machine while turning his head to check the weeding situation of the roadside weeding head. Summary of the invention

[0004] In view of this, the present invention aims to provide a weeder to facilitate workers to perform construction.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A weeder comprises a traveling mechanism, a rotating mechanism, a boom mechanism and an operating room; the traveling mechanism comprises a chassis, the rotating mechanism comprises a mounting platform; the mounting platform is rotatably connected to the chassis and is driven to rotate; the operating room is arranged at the front end of the mounting platform, the boom mechanism is arranged at the front end of the mounting platform and is located beside the operating room, and a weeding head is installed at the end of the boom mechanism through a hanging device.

[0007] Furthermore, the boom arm mechanism includes a boom and a forearm, and the forearm is a telescopic arm.

[0008] Furthermore, a counterweight and a center of gravity adjusting device are provided on the rear side of the mounting platform; the center of gravity adjusting device includes a telescopic rod, which passes through the chassis and is fixedly connected to the counterweight, and the center of gravity adjusting device drives the counterweight to translate toward the side close to the boom arm mechanism or away from the boom arm mechanism through the telescopic rod and then stops.

[0009] Furthermore, the boom is hinged on the mounting platform through a base, and is provided with a boom cylinder for driving the boom to flip; the forearm is hinged at the end of the boom, and is provided with a stick cylinder for driving the forearm to flip; the floating switch sends an unloading signal when the weeding head is in contact with the ground; the control module is connected to the floating switch, and unloads the stick cylinder and the boom cylinder according to the unloading signal.

[0010] Furthermore, the weeding head includes an outer cover, which includes a top plate and side plates fixed on both sides of the top plate; the two side plates are each installed with a baffle pry through a telescopic device on one side away from the top plate, and the telescopic drive device drives the baffle pry to rise and fall relative to the side plate.

[0011] Furthermore, the installation platform is provided with vertical guide rail beams on both sides of the operating room, the operating room is slidably connected to the guide rail beams, and the operating room is driven by the lifting drive device to rise and fall along the guide rail beams.

[0012] Furthermore, the walking mechanism also includes a crawler track, which is rotatably connected to the left and right sides of the chassis through the wheel body, and is driven to rotate to drive the chassis to move.

[0013] Furthermore, the hanging device includes a slope adjustment device, and the slope adjustment device includes a slope plate and a slope adjustment drive device; one end of the slope plate is hinged to the end of the inner sleeve, and the other end is a free end, and the rotation axis of the slope plate is parallel to the axis of rotation of the forearm relative to the upper arm, and the slope adjustment drive device drives the slope plate to rotate.

[0014] Furthermore, the hooking device includes a translation adjustment device, which includes a connecting shaft and a translation drive device. The connecting shaft is arranged along the normal direction of the slope plate and is rotatably connected to the slope plate. The translation drive device drives the connecting shaft to translate.

[0015] Furthermore, the weeding head includes a knife shaft and a heavy hammer type swing knife, and a plurality of heavy hammer type swing knives are evenly hinged on the cylindrical surface of the knife shaft; each heavy hammer type swing knife is provided with an anti-winding knife at a circumferential position, and the anti-winding knife is fixedly connected to the cylindrical surface of the knife shaft along the axial direction of the knife shaft.

[0016] Compared with the prior art, the weeder of the present invention has the following advantages:

[0017] (1) The weeder described in the present invention makes the front end of the chassis face the downstream of the road, and uses the rotating mechanism to rotate the mounting platform 90 degrees, so that the operating room, the boom mechanism and the weeding head are all facing the ditch on the roadside; each time the boom mechanism is extended and retracted, weeding is completed; the walking mechanism is started, moves forward a distance of the weeding head and then stops, and the boom mechanism and the weeding head are started again to carry out weeding; thereby, the operator can focus on the weeding operation of the ditch.

[0018] (2) The boom arm mechanism of the present invention adopts a telescopic arm with a long arm span, which can achieve the weed removal on both sides of the shore at one side at the same time, reducing the time for the weeder to stop and adjust the position, and improving work efficiency.

[0019] (3) The vehicle body described in the present invention changes the position of the counterweight block when moving, changes the distance from the counterweight block to the center of the mounting platform, and thus changes the force arm of the counterweight block, thereby balancing the torque change caused by the extension and retraction of the boom mechanism and ensuring the stability of the lawn mower.

[0020] (4) The boom arm mechanism of the present invention utilizes various valve bodies etc. to realize unloading, and realizes floating setting by unloading. The weeding head is subjected to the self-weight, which causes the upper arm and the lower arm to deflect, so that the weeding head is pressed on the ground, and the weeding head and the ground are fitted together, thereby ensuring the weeding effect.

[0021] (5) The barrier pry described in the present invention is used to support the weeding head to ensure that the blade axis thereof keeps a distance from the ground when the weeding head is in contact with the ground, so as to perform limited cutting; and the distance between the barrier pry and the outer cover is changed by a telescopic device, so as to change the height of the grass after weeding.

[0022] (6) The operating room described in the present invention raises the position of the operating room, thereby raising the position of the operator in the operating room, making it easier for the operator to observe the working conditions on the ditch slope.

[0023] (7) With the weeding head described in the present invention, when vines are entangled on the blade shaft, as the blade shaft rotates, the vines will come into contact with the anti-entanglement blade and be cut by the anti-entanglement blade, thereby preventing the heavy hammer-type swinging blade from being tied to the blade shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A schematic diagram of a weeder according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of an installation platform according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of an operating room according to an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A magnified view of part A;

[0029] Figure 5 A schematic diagram of a boom arm mechanism according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of installing a counterweight according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of a hooking device according to an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of a mounting head according to an embodiment of the present invention;

[0033] Fig. 9This is a schematic diagram of the knife shaft structure described in an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Walking mechanism; 11. Crawler tracks; 12. Chassis; 2. Rotating mechanism; 21. Rotary drive device; 22. Mounting platform; 221. Guide rail beam; 222. Counterweight block; 223. Center of gravity adjustment device; 3. Chassis; 4. Boom and arm mechanism; 41. Big arm; 42. Small arm; 421. Outer sleeve; 422. Middle sleeve; 423. Inner sleeve; 424. First-stage telescopic cylinder; 425. Second-stage telescopic cylinder; 43. Base; 44. Boom cylinder; 45. Arm cylinder; 5. Operating room; 51. Beam frame; 52. Roof; 53. Baffle; 54. Observation window; 55. Entrance; 56. Operating panel; 57. Seat; 58. Wheel set; 59. Lifting drive 6. weeding head; 61. outer cover; 611. top plate; 612. side plate; 62. knife shaft; 621. anti-winding knife; 63. heavy hammer type swing knife; 631. sleeve; 632. connecting plate; 633. bladeless arc plate; 64. telescopic device; 641. hinged rod; 642. telescopic drive device; 643. sliding shaft; 644. roller; 65. baffle pry; 651. mounting plate; 652. slotted hole; 7. slope adjustment device; 71. slope plate; 72. slope adjustment drive device; 73. first arc rod; 74. second arc rod; 8. translation adjustment device; 81. connecting shaft; 82. translation drive device; 821. translation hydraulic cylinder; 822. rack. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0038] 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] A lawn mower, such as Figure 1 As shown, it comprises a body and a weeding head 6.

[0041] The machine body includes a walking mechanism 1, a rotating mechanism 2, a chassis 3, a boom mechanism 4 and an operating room 5.

[0042] The walking mechanism 1 comprises a crawler 11 and a chassis 12. The crawler 11 is connected to the left and right sides of the chassis 12 through the rotation of the wheel body, and is driven to rotate to drive the chassis 12 to move. The crawler 11 type walking machine body structure is a prior art and will not be described in detail in this embodiment.

[0043] The rotating mechanism 2 is mounted on the chassis 12, and includes a rotating drive device 21 and a mounting platform 22. The mounting platform 22 is rotatably connected to the chassis 12 and is driven to rotate by the rotating drive device 21. The rotating mechanism 2 is also a prior art and will not be described in detail in this embodiment. The chassis 3, the operating room 5 and the boom mechanism 4 are all arranged on the mounting platform 22 and rotate together with the mounting platform 22. The chassis 3 is directly fixed to the rear end of the mounting platform 22 and is used to carry the hydraulic system of the lawn mower and the PLC as a control module.

[0044] Combination Figure 2 As shown, the operating room 5 includes a beam frame 51, a ceiling 52 and a baffle 53. The ceiling 52 is fixed to the top surface of the beam frame 51, and the baffle 53 is fixed to the front side of the beam frame 51, so that the operating room 5 is formed with an observation window 54 and an entrance 55. The operating room 5 is fixed with a tempered glass covering the observation window 54, and is hinged with a door that closes the entrance 55. An operating panel 56 and a seat 57 are arranged in the operating room 5. The operating panel 56 is installed on the beam frame 51 and is connected to the control module in the chassis 3 through wires. The seat 57 is fixed to the beam frame 51 through a vertical beam and faces the observation window 54.

[0045] Combination Figure 3 and Figure 4As shown, the operating room 5 is arranged at the front end of the mounting platform 22, and the mounting platform 22 is provided with vertically arranged guide rail beams 221 on both sides of the operating room 5, and both guide rail beams 221 are formed with inner grooves on the side adjacent to the operating room 5. The inner groove extends vertically from bottom to top, and the operating room 5 is rotatably connected with a wheel set 58, and the wheel set 58 is rotatably connected with the inner groove, and the operating room 5 is driven to rise and fall on the mounting platform 22 by a lifting drive device 59. The lifting drive device 59 is a lifting hydraulic cylinder, the cylinder body of the lifting hydraulic cylinder is fixedly connected to the mounting platform 22, and the piston rod of the lifting hydraulic cylinder is fixedly connected to the bottom of the beam frame 51, so that the lifting drive device 59 drives the lifting operating room 5 to rise and fall, so as to improve the operator's field of vision and ensure that the operator can see the progress of the weeding head 6 when the weeder is weeding the ditch on the shore. In addition, in order to protect the wires connecting the chassis 3 and the operating panel 56, a towline is provided on the wire jacket; and one end of the towline is fixedly connected to the mounting platform 22, and the other end is fixedly connected to the beam frame 51, so as to prevent the wires from being damaged during the lifting process of the operating room 5.

[0046] Combination Figure 5 As shown, the boom-arm mechanism 4 is arranged at the front end of the mounting platform 22 and is located beside the operating room 5. The boom-arm mechanism includes a boom 41 and a forearm 42. The boom 41 is hinged to the mounting platform 22 through a base 43, and is provided with a boom cylinder 44; the cylinder body of the boom cylinder 44 is hinged to the mounting platform 22, and the piston rod of the boom cylinder 44 is hinged to the boom 41 to drive the boom 41 to flip. The forearm 42 is hinged at the end of the boom 41, and is provided with a boom cylinder 45; the cylinder body of the boom cylinder 45 is hinged to the boom 41, and the piston rod of the boom cylinder 45 is hinged to the forearm 42 to drive the forearm 42 to flip. The forearm 42 is a telescopic arm, including an outer sleeve 421, a middle sleeve 422 and an inner sleeve 423. The outer sleeve 421 is hinged at the end of the boom 41 and is directly driven by the boom cylinder. The middle sleeve 422 is sleeved in the outer sleeve 421, and the inner sleeve 423 is sleeved in the middle sleeve 422. The arm 42 is provided with a primary telescopic cylinder 424, the cylinder body of which is fixedly connected to the outer sleeve 421, and the piston rod of which is fixedly connected to the middle sleeve 422, thereby controlling the length of the middle sleeve 422 to be extended. The arm 42 is also provided with a secondary telescopic cylinder 425, the cylinder body of which is fixedly connected to the middle sleeve 422, and the piston rod of which is fixedly connected to the inner sleeve 423, thereby controlling the length of the inner sleeve 423 to be extended. The weeding head 6 is installed at the end of the inner sleeve 423 through a hooking device.

[0047] Combination Figure 6As shown, in order to ensure the stability of the fuselage when the arm 42 is extended, a counterweight 222 and a center of gravity adjustment device 223 are provided on the rear side of the fuselage. The center of gravity adjustment device 223 is a push-pull piston cylinder, the cylinder body of which is fixed in the chassis 3, and its telescopic rod passes through the chassis 3 and is fixedly connected to the counterweight 222. In this way, the center of gravity adjustment device 223 is controlled by the control module, and according to the telescopic condition of the boom arm mechanism 4, the telescopic rod is driven to extend and retract relative to the chassis 3, and the length of the telescopic rod extending out of the chassis 3 is adjusted, so as to drive the counterweight 222 to translate toward the side close to the boom arm mechanism 4 or away from the side of the boom arm mechanism 4 and then stop, thereby changing the distance between the counterweight 222 and the center of gravity of the fuselage to balance the fuselage.

[0048] Combination Figure 7 As shown, the hooking device includes a slope adjustment device 7 and a translation adjustment device 8. The slope adjustment device 7 includes a slope plate 71 and a slope adjustment drive device 72. One end of the slope plate 71 is hinged to the end of the inner sleeve 423, and the other end is a free end, and the rotation axis of the slope plate 71 is parallel to the axis of rotation of the small arm 42 relative to the large arm 41. The slope adjustment drive device 72 is a slope adjustment cylinder, the cylinder body of the slope adjustment cylinder is hinged to the end of the inner sleeve 423, and the piston cylinder end of the slope adjustment cylinder is coaxially hinged with a first arc rod 73 and a second arc rod 74, and the end of the first arc rod 73 is hinged to the slope plate 71, so that the angle of the slope plate 71 relative to the ground can be adjusted by the extension and contraction of the slope adjustment cylinder; the end of the second arc rod 74 is hinged to the end of the inner sleeve 423, so as to limit the adjustment range of the slope plate 71.

[0049] The translation adjustment device 8 includes a connecting shaft 81 and a translation drive device 82. The connecting shaft 81 is arranged along the normal direction of the slope plate 71 and is rotatably connected to the slope plate 71. The weeding head 6 is fixedly connected to the end of the connecting shaft 81, so that the translation drive device 82 drives the connecting shaft 81 to translate the weeding head 6. The translation drive device 82 includes a translation hydraulic cylinder 821 and a rack 822. The cylinder body of the translation hydraulic cylinder 821 is fixedly connected to the slope plate 71. The end of the piston rod of the translation hydraulic cylinder 821 is fixedly connected to the rack 822, and the rack 822 is meshed with the connecting shaft 81, so that the translation drive device 82 drives the connecting shaft 81 to rotate.

[0050] Combination Figure 8 and Fig. 9As shown, the weeding head 6 includes an outer cover 61, a knife shaft 62 and a heavy hammer type swing knife 63. The outer cover 61 includes a top plate 611 and side plates 612 fixed on both sides of the top plate 611, and the top plate 611 is fixedly connected to the end of the connecting shaft 81. The knife shaft 62 is mounted between the two side plates 612 and is driven by a motor to rotate. A plurality of heavy hammer type swing knives 63 are evenly arranged on the cylindrical surface of the knife shaft 62. The heavy hammer type swing knife 63 includes a sleeve 631, a connecting plate 632 and a bladeless arc plate 633. The cylindrical surface of the knife shaft 62 is fixedly connected to an axially arranged rotating shaft through a hinge seat. The sleeve 631 is sleeved outside the rotating shaft, the connecting plate 632 is fixedly connected to the cylindrical surface of the sleeve 631 along the radial direction of the sleeve 631, the bladeless arc plate 633 is fixedly connected to the end of the connecting plate 632, and the bladeless arc plate 633 is bent away from the fuselage. Through the rotation of the motor, the blade shaft 62 drives the heavy hammer blade 63 to rotate, and the heavy hammer blade 63 uses kinetic energy to cut the weeds. The blade shaft 62 drives the heavy hammer blade 63 to rotate from the side close to the fuselage to the side away from the fuselage to cut; in this way, the driven sand and broken grass will be discharged to the side away from the fuselage to ensure the cleanliness of the fuselage. Each heavy hammer blade 63 is provided with an anti-winding blade 621 at a circumferential position, and the anti-winding blade 621 is fixedly connected to the cylindrical surface of the blade shaft 62 along the axial direction of the blade shaft 62. The anti-winding blade 621 is lower than the heavy hammer blade 63 to prevent the two from colliding.

[0051] A baffle pry 65 is installed on one side of the two side plates 612 away from the top plate 611 through a telescopic device 64. The telescopic device 64 includes a hinged rod 641 and a telescopic driving device 642. Two groups of mounting plates 651 are fixedly connected to the baffle pry 65. The two groups of mounting plates 651 are symmetrically arranged at the front and rear ends of the baffle pry 65 respectively; each group has two mounting plates 651 arranged along the length direction of the baffle pry 65, and the mounting plates 651 in the same group are aligned with each other and have straight holes 652 extending along the length direction, and slide grooves are formed between the mounting plates 651 in the same group. The articulated rods 641 include two groups, and the two groups of articulated rods 641 are respectively installed on both sides of the side plate 612; each group has two articulated rods 641, and the upper ends of the two articulated rods 641 in the same group are coaxially hinged on the front and back surfaces of the side plate 612, and the lower ends of the two articulated rods 641 in the same group are provided with sliding shafts 643, and the two ends of the sliding shafts 643 are respectively fixed to the lower ends of the two articulated rods 641 in the same group, and the middle of the sliding shaft 643 passes through the two mounting plates 651 in the same group through a straight hole 652, and the middle of the sliding shaft 643 is also provided with a roller 644 located in a slide groove. The telescopic drive device 642 is a telescopic piston cylinder. The cylinder body and piston rod of the telescopic piston cylinder are respectively hinged with the articulated rods 641 of different groups, so that the telescopic drive device 642 drives the isolation pry to rise and fall.

[0052] The weeder is provided with a floating switch. When the floating switch is triggered, the floating switch sends a load-removing signal to the control module. After receiving the load-removing signal, the control module electrically connected to the floating switch unloads the boom cylinder 44 and the arm cylinder 45, so that the weeding head 6 sinks under its own weight and is pressed on the ground. The hook device is used to preliminarily adjust the position of the weeding head 6 before the floating switch is triggered, so that the weeding head 6 is initially consistent with the ditch slope, and then the floating switch is used to unload the load, and the weeding head 6 is pressed on the ground by its own weight. The floating switch can be a button on the operation panel or a sensor on the weeding head 6.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A weeder, characterized in that: The invention comprises a walking mechanism (1), a rotating mechanism (2), a boom mechanism (4) and an operating room (5); the walking mechanism (1) comprises a chassis (12), the rotating mechanism (2) comprises a mounting platform (22); the mounting platform (22) is rotatably connected to the chassis (12) and is driven to rotate; the operating room (5) is arranged at the front end of the mounting platform (22), the boom mechanism (4) is arranged at the front end of the mounting platform (22) and is located beside the operating room (5), and a weeding head (6) is installed at the end of the boom mechanism (4) through a hanging device; The operating room includes a beam frame, a ceiling and a baffle, the ceiling is fixedly connected to the top surface of the beam frame, and the baffle is fixedly connected to the front side of the beam frame, so that the operating room is formed with an observation window and an entrance, the operating room is fixedly connected with a tempered glass covering the observation window, and is hinged with a door closing the entrance, an operating panel and a seat are arranged in the operating room, the operating panel is installed on the beam frame and is connected to the control module in the chassis through wires, and the seat is fixed to the beam frame through a vertical beam and faces the observation window; The weeding head (6) comprises an outer cover (61), the outer cover (61) comprises a top plate (611), and side plates (612) fixed on both sides of the top plate (611); a barrier pry (65) is installed on the side of the two side plates (612) away from the top plate (611) through a telescopic device (64); a telescopic driving device (642) drives the barrier pry (65) to rise and fall relative to the side plate (612); two groups of mounting plates are fixedly connected to the barrier pry, and the two groups of mounting plates are symmetrically arranged at the front and rear ends of the barrier pry; each group has two mounting plates arranged along the length direction of the barrier pry, and the mounting plates in the same group are aligned with each other and have openings along the length. A straight hole extending in the direction of the side plate is formed between the mounting plates of the same group, and the articulated rods include two groups, which are respectively mounted on both sides of the side plates; each group has two articulated rods, and the upper ends of the two articulated rods of the same group are coaxially hinged on the front and back surfaces of the side plates, and a sliding shaft is mounted on the lower ends of the two articulated rods of the same group, and the two ends of the sliding shaft are respectively fixed to the lower ends of the two articulated rods of the same group, and the middle part of the sliding shaft passes through the two mounting plates of the same group through a straight hole, and the middle part of the sliding shaft is also sleeved with a roller located in the slide groove, and the telescopic driving device is a telescopic piston cylinder, and the cylinder body and piston rod of the telescopic piston cylinder are respectively hinged to the articulated rods of different groups, so that the telescopic driving device drives the isolation skid to rise and fall; The weeding head (6) comprises a knife shaft (62) and a heavy hammer type swing knife (63), wherein a plurality of heavy hammer type swing knives (63) are evenly hinged on the cylindrical surface of the knife shaft (62); each heavy hammer type swing knife (63) is provided with an anti-winding knife (621) at a circumferential position, wherein the anti-winding knife (621) is fixedly connected to the cylindrical surface of the knife shaft (62) along the axial direction of the knife shaft (62); the heavy hammer type swing knife comprises a sleeve, a connecting plate and a bladeless arc plate; the cylindrical surface of the knife shaft is fixedly connected to an axially arranged rotating shaft through a hinge seat; the sleeve is sleeved outside the rotating shaft; the connecting plate is fixedly connected to the cylindrical surface of the sleeve along the radial direction of the sleeve; the bladeless arc plate is fixedly connected to the cylindrical surface of the sleeve; It is connected to the end of the connecting plate, and the bladeless arc plate is bent toward the side away from the fuselage. Through the rotation of the motor, the knife shaft drives the heavy hammer type swing knife to rotate, and the heavy hammer type swing knife cuts the weeds through kinetic energy. The knife shaft drives the heavy hammer type swing knife to rotate from the side close to the fuselage to the side away from the fuselage to perform cutting. In this way, the driven sand and broken grass will be discharged to the side away from the fuselage to ensure the cleanliness of the fuselage. An anti-winding knife is provided at the circumferential position of each heavy hammer type swing knife. The anti-winding knife is fixed to the cylindrical surface of the knife shaft along the axial direction of the knife shaft. The anti-winding knife is lower than the heavy hammer type swing knife, thereby preventing the two from colliding. The boom arm mechanism (4) comprises a boom (41) and a forearm (42). The forearm (42) is a telescopic arm, comprising an outer sleeve, a middle sleeve and an inner sleeve. The outer sleeve is hinged at the end of the boom and is directly driven by the boom oil cylinder. The middle sleeve is sleeved in the outer sleeve, and the inner sleeve is sleeved in the middle sleeve. The forearm is provided with a primary telescopic cylinder, the cylinder body of which is fixedly connected to the outer sleeve, and the piston rod of which is fixedly connected to the middle sleeve, so as to control the extension length of the middle sleeve. The forearm is also provided with a secondary telescopic cylinder, the cylinder body of which is fixedly connected to the middle sleeve, and the piston rod of which is fixedly connected to the inner sleeve, so as to control the extension length of the inner sleeve. The weeding head is installed at the end of the inner sleeve through a hooking device. The installation platform (22) is provided with vertically arranged guide rail beams (221) on both sides of the operating room (5), and both guide rail beams are formed with inner grooves on the side adjacent to the operating room, and the inner grooves extend vertically from bottom to top, and the operating room is rotatably connected to a wheel set, and the wheel set is rotatably connected to the inner groove, and the operating room (5) is slidably connected to the guide rail beams (221), and the operating room (5) is driven by a lifting drive device (59) to rise and fall along the guide rail beams (221); The walking mechanism (1) further comprises a crawler (11), wherein the crawler (11) is rotatably connected to the left and right sides of the chassis (12) through a wheel body, and is driven to rotate to drive the chassis (12) to move; The hooking device comprises a slope adjustment device (7), and the slope adjustment device (7) comprises a slope plate (71) and a slope adjustment driving device (72); one end of the slope plate (71) is hinged to the end of the inner sleeve (423), and the other end is a free end, and the rotation axis of the slope plate (71) is parallel to the rotation axis of the small arm (42) relative to the large arm (41); the slope adjustment driving device (72) drives the slope plate (71) to rotate, and the slope adjustment driving device is a slope adjustment oil cylinder, the cylinder body of the slope adjustment oil cylinder is hinged to the end of the inner sleeve, and the piston cylinder end of the slope adjustment oil cylinder is coaxially hinged with a first arc rod and a second arc rod, and the end of the first arc rod is hinged to the slope plate, so that the angle of the slope plate relative to the ground is adjusted by the extension and contraction of the slope adjustment oil cylinder; the end of the second arc rod is hinged to the end of the inner sleeve, so as to limit the adjustment range of the slope plate; The hooking device comprises a translation adjustment device (8), the translation adjustment device (8) comprises a connecting shaft (81) and a translation drive device (82), the connecting shaft (81) is arranged along the normal direction of the slope plate (71) and is rotationally connected to the slope plate (71), the translation drive device (82) drives the connecting shaft (81) to translate, and the translation drive device comprises a translation hydraulic cylinder and a rack, the cylinder body of the translation hydraulic cylinder is fixedly connected to the slope plate, the end of the piston rod of the translation hydraulic cylinder is fixedly connected to the rack, and the rack is meshed with the connecting shaft, so that the translation drive device drives the connecting shaft to rotate.

2. The weeder according to claim 1, characterized in that: A counterweight (222) and a center of gravity adjustment device (223) are arranged on the rear side of the installation platform (22); the center of gravity adjustment device (223) comprises a telescopic rod, which penetrates the chassis (3) and is fixedly connected to the counterweight (222); the center of gravity adjustment device (223) drives the counterweight (222) to move toward a side close to the boom arm mechanism (4) or away from the boom arm mechanism (4) through the telescopic rod and then stops.

3. The weeder according to claim 1, characterized in that: The boom (41) is hinged on the mounting platform (22) through a base (43), and is provided with a boom oil cylinder (44) for driving the boom (41) to flip; the forearm (42) is hinged at the end of the boom (41), and is provided with a dipper rod oil cylinder (45) for driving the dipper rod (42) to flip; the floating switch sends a load-unloading signal when the weeding head (6) is in contact with the ground; the control module is connected to the floating switch, and unloads the dipper rod oil cylinder (45) and the boom oil cylinder (44) according to the load-unloading signal.

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