Cantilever three-axis mower

Abstract

The utility model discloses a cantilever three-shaft mower which comprises a basic supporting plate fixed to a rack of a walking vehicle, a lifting device is installed on the basic supporting plate, a first U-shaped supporting plate is fixed to the lifting device, a U-shaped connecting plate is rotationally arranged on the first U-shaped supporting plate, and a second U-shaped supporting plate is fixed to the U-shaped connecting plate. A limiting baffle is vertically fixed to the first U-shaped supporting plate, a rib plate is horizontally fixed to the side, away from the second U-shaped supporting plate, of the limiting baffle, a through hole is formed in the rib plate, a lifting ring nut is fixed to the side, close to the rib plate, of the second U-shaped supporting plate, the through hole and the lifting ring nut are connected through a tension spring, and a mowing mechanism is installed on the second U-shaped supporting plate. The lifting device and the mowing mechanism are electrically connected with the controller. The obstacle avoidance device has the advantages that in the mowing process, obstacle avoidance can be effectively achieved, hard contact between a mowing mechanism and an obstacle is avoided, and therefore equipment is protected; and the horizontal height of the mowing mechanism can be reasonably adjusted according to environmental requirements.

Description

Technical Field

[0001] This utility model relates to the field of lawn mowing equipment technology, specifically a cantilevered triaxial lawn mower. Background Technology

[0002] In northern my country, airport open areas typically have large grassy areas. Regular mowing is necessary to maintain the appearance of these areas. However, airport restrictions on large lawnmowers mean that mowing is primarily done manually. Manual mowing is labor-intensive and inefficient. Furthermore, ensuring worker safety requires additional supervisors, making it too costly and inefficient for airports. Therefore, a cantilevered triaxial lawnmower solution has been proposed to address this issue. Since the mowing area contains numerous obstacles such as light strips, shoulders, and equipment, the mower must also possess obstacle avoidance capabilities to prevent damage to these obstacles or itself, ensuring stable mowing. Utility Model Content

[0003] The purpose of this invention is to provide a cantilevered triaxial lawnmower to solve the problems mentioned in the background art.

[0004] This utility model is implemented by the following technical solution:

[0005] A cantilevered triaxial lawnmower includes a base support plate, a lifting device, a first U-shaped support plate, a U-shaped connecting plate, a second U-shaped support plate, a limiting baffle, ribs, tension springs, and a mowing mechanism.

[0006] The base support plate is fixed to the frame of the traveling vehicle. A lifting device is installed on the base support plate, and a first U-shaped support plate is fixed on the lifting device. A U-shaped connecting plate is rotatably mounted on the first U-shaped support plate, and a second U-shaped support plate is fixed on the U-shaped connecting plate. A limit baffle is vertically fixed on the first U-shaped support plate, and a rib is horizontally fixed on the side of the limit baffle away from the second U-shaped support plate. A through hole is opened on the rib. A lifting eye nut is fixed on the side of the second U-shaped support plate near the rib. The through hole and the lifting eye nut are connected by a tension spring, so that the vertical surface of one side of the second U-shaped support plate and the vertical surface of one side of the limit baffle elastically abut against each other. A mowing mechanism is installed on the second U-shaped support plate. The lifting device and the mowing mechanism are electrically connected to the controller.

[0007] Preferably, the lifting device includes a first motor, a screw, a slider, and a first bearing assembly; the first motor is fixed to the upper surface of the top of the base support plate, the output shaft of the first motor is fixed to the top end of the screw, the slider is movably threaded through the screw, a groove is formed on one vertical surface of the base support plate, the slider slides in the groove, a first U-shaped support plate is fixed on the surface of the slider away from the screw, the first bearing assembly is fixed to the bottom upper surface of the base support plate, the other end of the screw is rotatably connected to the first bearing assembly, and the first motor and the controller are electrically connected.

[0008] Preferably, the mowing mechanism includes a second motor, a third U-shaped support plate, a lifting shaft, a support platform, a rotating shaft, a central pulley, a pulley, blades, and a second bearing assembly. The second motor is fixed to the inner side of the middle of the second U-shaped support plate. A third U-shaped support plate is horizontally fixed on the second U-shaped support plate. A lifting shaft is rotatably mounted on the third U-shaped support plate. The lifting shaft passes vertically through the third U-shaped support plate and is rotatably connected to the middle of the support platform. Three rotating shafts are also rotatably mounted on the support platform. The three rotating shafts are evenly distributed around the lifting shaft. The output shaft of the second motor is fixedly connected to the top end of one of the rotating shafts. A central pulley is fixed on the lifting shaft. Each of the three rotating shafts has a pulley and a blade fixed on it. The three pulleys are located above the support platform, and the three blades are located below the support platform. The three pulleys are respectively connected to the central pulley via belt drive. The top end of the lifting shaft is connected to the second bearing assembly. The second bearing assembly is fixed to the upper surface of the third U-shaped support plate. The second motor and the controller are electrically connected.

[0009] Preferably, the support platform includes a barrier plate, a support, and a second bearing assembly; the barrier plate and the support are fixed by bolts, and the three rotating shafts and the hoisting shaft all rotate through the barrier plate and the support. The barrier plate is petal-shaped, and the three blades are respectively located below the corresponding petals, and the length of the blades is less than the diameter of the petals. A third bearing assembly is installed in the support, which can be rotatably connected to the rotating shafts and the hoisting shafts respectively. The third bearing assembly is clamped between the barrier plate and the support.

[0010] Preferably, the first bearing assembly includes a first bearing housing, a first thrust roller bearing, and a bearing end cap; the first bearing housing is fixed to the upper surface of the top of the base support plate, the bottom ring of the first thrust roller bearing is fixed inside the first bearing housing, the shaft ring of the first thrust roller bearing and the bottom end of the screw are fixed, and the bearing end cap is fixed to the upper surface of the first bearing housing by bolts.

[0011] Preferably, the second bearing assembly and the first bearing assembly have the same structure, and the shaft ring of the second bearing assembly is fixed to the top of the lifting shaft.

[0012] Preferably, the third bearing assembly includes a second bearing housing and a second thrust roller bearing; the second bearing housing is fixed inside the bracket, the bottom ring of the second thrust roller bearing is fixed inside the second bearing housing, and the shaft ring of the second thrust roller bearing is fixed to the rotating shaft and the lifting shaft.

[0013] The advantages of this utility model are: during the mowing process, the mower uses the obstacle avoidance plate to make priority contact with the obstacle. Through the elastic rotation between the mowing mechanism and the first U-shaped support plate, obstacle avoidance can be effectively achieved, avoiding hard contact between the mowing mechanism and the obstacle, thereby protecting the equipment; the lifting mechanism can reasonably adjust the horizontal height of the mowing mechanism according to environmental needs, so as to be suitable for different working sites. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0017] Figure 4 for Figure 1 Top view;

[0018] Figure 5 for Figure 4 Sectional view at point A in the middle;

[0019] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0020] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0021] Figure 8 for Figure 5 Enlarged view of point D in the middle;

[0022] Figure 9 This is a schematic diagram of the support structure.

[0023] In the diagram: 1. Foundation support plate; 2. Lifting device; 2.1. First motor; 2.2. Screw; 2.3. Slider; 2.4. First bearing assembly; 2.41. First bearing seat; 2.42. First thrust roller bearing; 2.43. Bearing end cover; 3. First U-shaped support plate; 4. U-shaped connecting plate; 5. Second U-shaped support plate; 5.1. Lifting eye nut; 6. Limiting baffle; 7. Rib plate; 7.1. Through hole; 8. Pulling... 9. Spring, 9.1. Mowing mechanism, 9.2. Third U-shaped support plate, 9.3. Lifting shaft, 9.4. Support platform, 9.41. Obstacle avoidance plate, 9.42. Support, 9.43. Second bearing assembly, 9.431. Second bearing seat, 9.432. Second thrust roller bearing, 9.5. Rotating shaft, 9.6. Central pulley, 9.7. Pulley, 9.8. Blade, 9.9. Second bearing assembly. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-9 This utility model provides a technical solution for a cantilevered triaxial lawnmower:

[0026] A cantilevered triaxial lawnmower includes a base support plate 1, a lifting device 2, a first U-shaped support plate 3, a U-shaped connecting plate 4, a second U-shaped support plate 5, a limiting baffle 6, a rib plate 7, a tension spring 8, and a mowing mechanism 9.

[0027] A base support plate 1 is fixed to the frame of a traveling vehicle. A lifting device 2 is installed on the base support plate 1. The lifting device 2 includes a first motor 2.1, a screw 2.2, a slider 2.3, and a first bearing assembly 2.4. The first motor 2.1 is fixed to the upper surface of the base support plate 1. The output shaft of the first motor 2.1 is fixed to the top end of the screw 2.2. The slider 2.3 is movably threaded through the screw 2.2. A first U-shaped support plate 3 is fixed to the surface of the slider 2.3 away from the screw 2.2. A groove 1.1 is formed on the vertical surface of one side of the base support plate 1, and the slider 2.3 slides within the groove 1.1. The first bearing assembly 2.4 is fixed to the bottom upper surface of the base support plate 1, and the other end of the screw 2.2 is rotatably connected to the first bearing assembly 2.4. The first bearing assembly 2.4 includes a first bearing seat 2.41, a first thrust roller bearing 2.42, and a bearing end cap 2.43. The first bearing seat 2.41 is fixed to the top upper surface of the base support plate 1, the bottom ring of the first thrust roller bearing 2.42 is fixed inside the first bearing seat 2.41, the shaft ring of the first thrust roller bearing 2.42 is fixed to the bottom end of the screw 2.2, and the bearing end cap 2.43 is fixed to the upper surface of the first bearing seat 2.41 by bolts. The first motor 2.1 drives the screw 2.2 to rotate, so that the slider 2.3 can slide up and down along the slide groove 1.1, thereby adjusting the position and height of the mowing mechanism 9.

[0028] A U-shaped connecting plate 4 is rotatably mounted on the first U-shaped support plate 3. A second U-shaped support plate 5 is fixed on the U-shaped connecting plate 4. A limit baffle 6 is vertically fixed on the first U-shaped support plate 3. A rib 7 is horizontally fixed on the side of the limit baffle 6 away from the second U-shaped support plate 5. A through hole 7.1 is opened on the rib 7. A lifting eye nut 5.1 is fixed on the side of the second U-shaped support plate 5 near the rib 7. The through hole 7.1 and the lifting eye nut 5.1 are connected by a tension spring 8, so that the vertical surface of one side of the second U-shaped support plate 5 and the vertical surface of one side of the limit baffle 6 can elastically abut against each other. A mowing mechanism 9 is installed on the second U-shaped support plate 5. By using the limiting interception and elastic reset of the tension spring 8 and the limit baffle 6, the mowing mechanism 9 can avoid hard contact in time when it encounters an obstacle, and reset to its original position through the tension spring 8, thereby effectively protecting the equipment.

[0029] To ensure the blade 9.8 remains unaffected during obstacle avoidance, the mowing mechanism 9 includes a second motor 9.1, a third U-shaped support plate 9.2, a lifting shaft 9.3, a support platform 9.4, a rotating shaft 9.5, a central pulley 9.6, a pulley 9.7, a blade 9.8, and a second bearing assembly 9.9. The second motor 9.1 is fixed to the inner side of the middle of the second U-shaped support plate 5. The third U-shaped support plate 9.2 is horizontally fixed on the second U-shaped support plate 5. The lifting shaft 9.3 is rotatably mounted on the third U-shaped support plate 9.2, and vertically passes through the third U-shaped support plate 9.3 and is rotatably connected to the middle of the support platform 9.4. Three rotating shafts 9.5 are also rotatably mounted on the support platform 9.4, evenly distributed around the lifting shaft 9.3. The output shaft of the second motor 9.1 is fixedly connected to the top end of one of the rotating shafts 9.5, thereby driving the other two rotating shafts 9.5 to rotate. A central pulley 9.6 is fixed on the lifting shaft 9.3. Pulleys 9.7 and blades 9.8 are fixed on each of the three rotating shafts 9.5. The three pulleys 9.7 are located above the support platform 9.4, and the three blades 9.8 are located below the support platform 9.4. The three pulleys 9.7 are connected to the central pulley 9.6 via belt drive. The top end of the lifting shaft 9.3 is connected to the second bearing assembly 9.9, which is fixed to the upper surface of the third U-shaped support plate 9.2. The second bearing assembly 9.9 has the same structure as the first bearing assembly 2.4, except that the connection position is different. The shaft ring of the second bearing assembly 9.9 is fixed to the top end of the lifting shaft 9.3.

[0030] The aforementioned support platform 9.4 includes an obstacle avoidance plate 9.41, a support 9.42, and a second bearing assembly 9.43. The obstacle avoidance plate 9.41 and the support 9.42 are fixed together by bolts. Three rotating shafts 9.5 and a lifting shaft 9.3 all rotatably pass through the obstacle avoidance plate 9.41 and the support 9.42. The obstacle avoidance plate 9.41 is petal-shaped, with three blades 9.8 located below their respective petals. The length of each blade 9.8 is less than the diameter of the petal. When encountering an obstacle, the blades will preferentially contact the edge of the obstacle avoidance plate 9.41, allowing the support platform 9.4 to avoid obstacles by rotating during its movement. This prevents the blades 9.8 from contacting the obstacles, thus protecting them. The support 9.42 houses a third bearing assembly 9.43, which is rotatably connected to both the rotating shafts 9.5 and the lifting shaft 9.3. The third bearing assembly 9.43 is clamped between the obstacle avoidance plate 9.41 and the support 9.42. The third bearing assembly 9.43 includes a second bearing housing 9.431 and a second thrust roller bearing 9.432; the second bearing housing 9.431 is fixed inside the bracket 9.42, the bottom ring of the second thrust roller bearing 9.432 is fixed inside the second bearing housing 9.431, and the shaft ring of the second thrust roller bearing 9.432 is fixed to the rotating shaft 9.5 and the lifting shaft 9.3.

[0031] The first motor 2.1 and the second motor 9.1 are electrically connected to the controller. The controller is not shown in the attached drawings.

[0032] The working principle is as follows: The base support plate 1 is fixed to the frame of the traveling vehicle via connectors. Then, the battery box of the traveling vehicle is electrically connected to the first motor 2.1 and the second motor 9.1 respectively. The controller controls the first motor 2.1 to drive the screw 2.2 to rotate, which causes the slider 2.3 to drive the mowing mechanism 9 to move up and down, thereby reasonably adjusting the horizontal height of the mowing mechanism 9 according to environmental needs. At the same time, the controller controls the second motor 9.1 to drive the pulley 9.7 on one of the rotating shafts 9.5 to rotate. Through the transmission relationship between the three belts and the three pulleys 9.7 and the central pulley 9.6, the three pulleys 9.7 and the three blades 9.8 rotate simultaneously, realizing simultaneous cutting operation of the three blades 9.8 and improving mowing efficiency.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cantilevered triaxial lawnmower, characterized in that: It includes a base support plate (1), a lifting device (2), a first U-shaped support plate (3), a U-shaped connecting plate (4), a second U-shaped support plate (5), a limiting baffle (6), a rib plate (7), a tension spring (8), and a mowing mechanism (9); The base support plate (1) is fixed on the frame of the traveling vehicle. A lifting device (2) is installed on the base support plate (1). A first U-shaped support plate (3) is fixed on the lifting device (2). A U-shaped connecting plate (4) is rotatably provided on the first U-shaped support plate (3). A second U-shaped support plate (5) is fixed on the U-shaped connecting plate (4). A limit baffle (6) is vertically fixed on the first U-shaped support plate (3). A rib plate (7) is horizontally fixed on the side of the limit baffle (6) away from the second U-shaped support plate (5). The rib (7) has a through hole (7.1), and the second U-shaped support plate (5) is fixed with a lifting nut (5.1) on the side near the rib (7). The through hole (7.1) and the lifting nut (5.1) are connected by a tension spring (8), so that the vertical surface of one side of the second U-shaped support plate (5) and the vertical surface of one side of the limiting baffle (6) elastically abut against each other. The second U-shaped support plate (5) is equipped with a mowing mechanism (9), and the lifting device (2) and the mowing mechanism (9) are electrically connected to the controller respectively.

2. The cantilevered triaxial lawnmower according to claim 1, characterized in that: The lifting device (2) includes a first motor (2.1), a screw (2.2), a slider (2.3), and a first bearing assembly (2.4). The first motor (2.1) is fixed on the upper surface of the base support plate (1). The output shaft of the first motor (2.1) is fixed to the top end of the screw (2.2). The slider (2.3) is movably threaded through the screw (2.2). A groove (1.1) is provided on one vertical surface of the base support plate (1). The slider (2.3) slides in the groove (1.1). A first U-shaped support plate (3) is fixed on the side of the slider (2.3) away from the screw (2.2). The first bearing assembly (2.4) is fixed on the bottom upper surface of the base support plate (1). The other end of the screw (2.2) is rotatably connected to the first bearing assembly (2.4). The first motor (2.1) is electrically connected to the controller.

3. A cantilevered triaxial lawnmower according to claim 1, characterized in that: The mowing mechanism (9) includes a second motor (9.1), a third U-shaped support plate (9.2), a lifting shaft (9.3), a support platform (9.4), a rotating shaft (9.5), a central pulley (9.6), a pulley (9.7), a blade (9.8), and a second bearing assembly (9.9). The second motor (9.1) is fixed to the inner side of the middle of the second U-shaped support plate (5). The third U-shaped support plate (9.2) is horizontally fixed on the second U-shaped support plate (5). The lifting shaft (9.3) is rotatably mounted on the third U-shaped support plate (9.2). The lifting shaft (9.3) vertically passes through the third U-shaped support plate (9.3) and is rotatably connected to the middle of the support platform (9.4). The support platform (9.4) is also rotatably mounted with three rotating shafts (9.5). The three rotating shafts (9.5) are used to lift... The lifting shafts (9.3) are evenly distributed around the center. The output shaft of the second motor (9.1) is fixedly connected to the top of one of the rotating shafts (9.5). A central pulley (9.6) is fixed on the lifting shaft (9.3). Pulleys (9.7) and blades (9.8) are fixed on each of the three rotating shafts (9.5). The three pulleys (9.7) are located above the support platform (9.4), and the three blades (9.8) are located below the support platform (9.4). The three pulleys (9.7) are respectively connected to the central pulley (9.6) via belt drive. The top of the lifting shaft (9.3) is connected to the second bearing assembly (9.9). The second bearing assembly (9.9) is fixed on the upper surface of the third U-shaped support plate (9.2). The second motor (9.1) and the controller are electrically connected.

4. A cantilevered triaxial lawnmower according to claim 3, characterized in that: The support platform (9.4) includes a barrier plate (9.41), a support (9.42), and a third bearing assembly (9.43). The barrier plate (9.41) and the support (9.42) are fixed by bolts. The three rotating shafts (9.5) and the hoisting shaft (9.3) all rotate through the barrier plate (9.41) and the support (9.42). The barrier plate (9.41) is petal-shaped. The three blades (9.8) are located below the corresponding petals, and the length of the blades (9.8) is less than the diameter of the petals. The support (9.42) is equipped with a third bearing assembly (9.43) that can be rotatably connected to the rotating shafts (9.5) and the hoisting shaft (9.3). The third bearing assembly (9.43) is clamped between the barrier plate (9.41) and the support (9.42).

5. A cantilevered triaxial lawnmower according to claim 2, characterized in that: The first bearing assembly (2.4) includes a first bearing housing (2.41), a first thrust roller bearing (2.42), and a bearing end cap (2.43); the first bearing housing (2.41) is fixed on the upper surface of the base support plate (1), the bottom ring of the first thrust roller bearing (2.42) is fixed inside the first bearing housing (2.41), the shaft ring of the first thrust roller bearing (2.42) is fixed to the bottom end of the screw (2.2), and the bearing end cap (2.43) is fixed to the upper surface of the first bearing housing (2.41) by bolts.

6. A cantilevered triaxial lawnmower according to claim 3, characterized in that: The second bearing assembly (9.9) and the first bearing assembly (2.4) have the same structure. The shaft ring of the second bearing assembly (9.9) is fixed to the top of the lifting shaft (9.3).

7. A cantilevered triaxial lawnmower according to claim 4, characterized in that: The third bearing assembly (9.43) includes a second bearing housing (9.431) and a second thrust roller bearing (9.432); the second bearing housing (9.431) is fixed inside the bracket (9.42), the bottom ring of the second thrust roller bearing (9.432) is fixed inside the second bearing housing (9.431), and the shaft ring of the second thrust roller bearing (9.432) is fixed to the rotating shaft (9.5) and the lifting shaft (9.3).

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