Mowing assembly of mower

Abstract

The utility model provides a mowing assembly of a mower, and relates to the technical field of mowers, the mowing assembly of the mower comprises a rack, a driving motor and a cutterhead, the two ends of the rack are provided with installation blocks used for being connected with the mower, the driving motor is installed at the top end of the rack and used for driving the cutterhead to rotate, and the two ends of the cutterhead are provided with blades through bolts. A groove is formed in the outer surface of the cutter head, positioning devices are arranged at the two ends of the cutter head, each positioning device comprises a plurality of rectangular blocks and a rotating shaft, and the outer surfaces of the two rectangular blocks are rotationally connected with one rotating shaft. The stop block is pressed on the surface of the frame rod to limit the mutual angle between the blade and the cutter head, the blade and the cutter head can be conveniently connected through a bolt, the angle of the blade does not need to be continuously controlled by hands, the hands are prevented from being scratched by the blade in the blade mounting process as much as possible, and the blade mounting convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of lawnmower technology, and in particular to lawnmower mowing assembly. Background Technology

[0002] A lawnmower is a mechanical device used to trim lawns, grasslands, and other vegetation. It is widely used in landscaping, golf courses, parks, residential areas, farmland, and other places. A disc-type remote-controlled lawnmower is a type of lawnmower that can be controlled remotely. The direction of movement of the lawnmower can be controlled by the remote control, and the lawnmower can perform the mowing work by using the rotating blades inside the bottom disc.

[0003] The mowing assembly of a disc mower mainly consists of a frame, a drive unit, a blade holder, and blades. The blades are bolted to the blade holder, and the drive unit on the frame controls the rotation of the blade holder, which in turn drives the blades to rotate and mow the grass. When replacing the blades on the disc, it is not easy to align the blades with the disc and connect them with bolts. Moreover, because the blades are quite sharp, the hands are easily cut by the blades when continuously holding the blades to control the angle during installation. As a result, the mowing assembly has the problem of inconvenience in disassembling and replacing the blades. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that when replacing the blades on the blade disc, it is not easy to align the blades with the blade disc and connect them with bolts. Also, because the blades are relatively sharp, the hands are easily cut by the blades when continuously holding the blades to control the angle during installation. This makes it inconvenient to disassemble and replace the blades in the lawn mower assembly. Therefore, this lawn mower assembly is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lawnmower assembly, including a frame, a drive motor and a blade disc, wherein mounting blocks for connecting to the lawnmower are provided at both ends of the frame, and holes for bolts to pass through are provided on the surface of the mounting blocks;

[0006] The drive motor is mounted on the top of the frame to drive the cutter head to rotate. One end of the cutter head is connected to the output end of the drive motor via a coupling. Blades are bolted to both ends of the cutter head. Positioning devices that can assist in the installation of the blades are provided at both ends of the cutter head.

[0007] The effect achieved by the above components is as follows: the frame is installed on the lawnmower body by using bolts and mounting blocks at both ends of the frame, and the blades are rotated by the drive motor on the frame to cut grass.

[0008] Preferably, the positioning device includes several rectangular blocks and a rotating shaft. The outer surfaces of two rectangular blocks are rotatably connected to a rotating shaft. One side of each rectangular block is fixedly connected to one side of the cutter head. Grooves are respectively provided at both ends of the cutter head. A torsion spring is provided at one end of the rotating shaft. The torsion spring is fixed to the outside of the cutter head to limit the angle of the rotating shaft. A stop block is fixedly connected to the outer surface of the rotating shaft. The positioning device also includes a frame rod. One end of the frame rod is fixedly connected to one end of the blade. The size and shape of the outer surface of the frame rod are adapted to the size and shape of the inner wall of the groove.

[0009] The aforementioned components achieve the following effect: When installing the blade, push the two side stops at one end of the cutter head to rotate the shaft, causing the stops to rotate away from the groove and deform the torsion spring. Then, insert the frame rod at one end of the blade into the groove on the outer surface of the cutter head. Release the stop, and the torsion spring will restore its deformation, causing the shaft and the stop to rotate in the original direction. This causes the stops on both sides of the groove to press against the surface of the frame rod, fixing the position of the frame rod inside the groove and the relative position between the blade and the cutter head. Then, without holding the blade by hand, use bolts to connect the blade to the cutter head through the through holes on the outer surface of the blade and the cutter head, and engage with nuts. When removing the blade, release the bolt connection at the blade, push the stops on both sides of the groove to rotate away from the surface of the frame rod, and then remove the frame rod from inside the groove.

[0010] Preferably, the bottom end of the frame rod is fixedly connected to two protruding rods, and the inner wall of the groove is provided with slots on both sides.

[0011] The effect achieved by the above-mentioned components is that when the frame rod is placed into the groove, the two protruding rods at the bottom of the frame rod can be engaged in the slots inside the groove to initially limit the angle between the frame rod and the groove, thereby improving the convenience of using the positioning device.

[0012] Preferably, an arc-shaped groove is provided on one side of the frame rod, and the inner wall of the arc-shaped groove is provided with a plurality of protrusions.

[0013] The effect achieved by the above-mentioned components is that when removing the blade, it is easier to pull the frame rod out of the groove by pressing the protrusion on the inner wall of the arc groove with your hand.

[0014] Preferably, a protrusion is fixedly connected to one side of the stop block, and the protrusion is located on the side of the stop block away from the groove.

[0015] The effect achieved by the above components is that pressing the protrusion on the top surface of the stop block by hand makes it easier to control the rotation of the stop block and adjust its angle.

[0016] Preferably, the cutter head is provided with protective devices at both ends. The protective devices include two sliding rods and a protective cover. The sliding rods slide on the inner wall of the cutter head to install the protective cover on the outer side of the cutter head. The two sets of sliding rods and the protective cover are respectively located at both ends of a groove. The protective device also includes a ring, and L-shaped rods are fixedly connected to both sides of the ring.

[0017] The aforementioned components achieve the following effects: When installing the blade using the positioning device, the guards at both ends of the groove are pulled and slid outward along the inner wall of the blade disc via the sliding rods to expose the rectangular block. After the blade is installed on the outside of the blade disc, the guards are pushed near the two ends of the groove to allow the sliding rods to slide into the inside of the blade disc, covering the rectangular block and the rotating shaft. Then, the ring is attached to the surface of the blade, with one end of the L-shaped rods on both sides of the ring attached to the surface of the guards at both ends of the groove. When using bolts to connect the blade and the blade disc, the bolts pass through the through holes on the outer surface of the ring to fix the ring to the outside of the blade disc. The position of the guards is fixed by the L-shaped rods on both sides of the ring. The guards protect the rotating shaft and torsion spring of the positioning device, minimizing the risk of foreign objects entering the rotating shaft and torsion spring or impact affecting normal operation of the mowing assembly.

[0018] Preferably, the two ends of the protective cover are arc-shaped.

[0019] The effect achieved by the above components is that by setting the edges of the guard to be arc-shaped, the edges of the guard can more easily scrape the surface of the foreign object when the cutter head rotates, reducing the direct impact on the surface of the guard and improving the service life of the guard.

[0020] Preferably, a plurality of reinforcing rods are fixedly connected to the outer surface of the L-shaped rod, and the two ends of the reinforcing rods are respectively fixedly connected to the sides of the two L-shaped rods on both sides of the ring that are close to each other.

[0021] The effect achieved by the above components is that the connection between the two L-shaped rods and the ring can be strengthened by setting the reinforcing rod, thereby improving the structural strength of the outer surface of the ring and the L-shaped rods.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] In this invention, by setting a positioning device, when installing the blade, the frame rod at one end of the blade is inserted into the groove on the outer surface of the cutter head. The stop block presses on the surface of the frame rod to limit the mutual angle between the blade and the cutter head, which makes it easy to connect the blade to the cutter head with bolts. It eliminates the need to continuously control the angle of the blade by hand, minimizes the risk of the hand being cut by the blade during the installation process, and improves the convenience of installing the blade. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the cutter head of this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the pivot point of this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the frame rod of this utility model;

[0028] Figure 5 This is a three-dimensional structural diagram of the ring part of this utility model.

[0029] Legend: 1. Frame; 2. Positioning device; 3. Protective device; 4. Drive motor; 5. Cutter head; 6. Blade; 21. Groove; 22. Rectangular block; 23. Rotating shaft; 24. Torsion spring; 25. Stop block; 26. Frame rod; 27. Protruding rod; 28. Slot; 29. ​​Arc groove; 210. Protrusion; 31. Slide rod; 32. Protective cover; 33. Ring; 34. L-shaped rod; 35. Reinforcing rod. Detailed Implementation

[0030] Example 1, such as Figure 1-3 As shown, the lawnmower assembly includes a frame 1, a drive motor 4, and a blade disc 5. The frame 1 has mounting blocks at both ends for connection to the lawnmower. The mounting blocks have holes for bolts to pass through. The drive motor 4 is mounted on the top of the frame 1 to drive the blade disc 5 to rotate. One end of the blade disc 5 is connected to the output end of the drive motor 4 via a coupling. Blades 6 are bolted to both ends of the blade disc 5. Positioning devices 2 are provided at both ends of the blade disc 5 to assist in mounting the blades 6. The frame 1 is mounted on the lawnmower body using bolts that engage with the mounting blocks at both ends of the frame 1. The drive motor 4 on the frame 1 controls the rotation of the blade disc 5, which in turn drives the blades 6 to rotate for mowing.

[0031] Reference Figure 1-4As shown in this embodiment: the positioning device 2 includes several rectangular blocks 22 and a rotating shaft 23. A rotating shaft 23 is rotatably connected to the outer surfaces of two rectangular blocks 22. One side of each rectangular block 22 is fixedly connected to one side of the cutter head 5. Grooves 21 are respectively provided at both ends of the cutter head 5. A torsion spring 24 is provided at one end of the rotating shaft 23. The torsion spring 24 is fixed to the outside of the cutter head 5 to limit the angle of the rotating shaft 23. A stop block 25 is fixedly connected to the outer surface of the rotating shaft 23. The positioning device 2 also includes a frame rod 26. One end of the frame rod 26 is fixedly connected to one end of the blade 6. The size and shape of the outer surface of the frame rod 26 are adapted to the size and shape of the inner wall of the groove 21. When installing the blade 6, the two side stops 25 are pushed at one end of the cutter head 5 to rotate through the rotating shaft 23, causing the stops 25 to rotate away from the groove 21 and deform the torsion spring 24. Then, the frame rod 26 at one end of the blade 6 is inserted into the groove 21 on the outer surface of the cutter head 5. The stops 25 are released and the torsion spring 24 restores its deformation, causing the rotating shaft 23 and the stops 25 to return to their original positions. The direction of rotation causes the stops 25 located on both sides of the groove 21 to press against the surfaces of the frame rod 26, thus fixing the position of the frame rod 26 inside the groove 21 and the relative position between the blade 6 and the cutter head 5. Subsequently, without holding the blade 6 by hand, the bolts can be used to connect the blade 6 and the cutter head 5 through the through holes on the outer surfaces of the blade 6 and the cutter head 5 with the nuts. When removing the blade 6, the bolt connection at the blade 6 is released, and the stops 25 on both sides of the groove 21 are pushed to rotate away from the surface of the frame rod 26. Then, the frame rod 26 can be removed from the inside of the groove 21. By setting the positioning device 2, when installing the blade 6, the frame rod 26 at one end of the blade 6 is inserted into the groove 21 on the outer surface of the cutter head 5. The stop 25 presses against the surface of the frame rod 26 to limit the relative angle between the blade 6 and the cutter head 5, making it easy to connect the blade 6 and the cutter head 5 with bolts. It is not necessary to continuously control the angle of the blade 6 by hand, thus avoiding the risk of the hand being cut by the blade 6 during the installation process and improving the convenience of installing the blade 6.

[0032] Reference Figure 2-4 As shown in this embodiment: the bottom end of the frame rod 26 is fixedly connected with two protruding rods 27, and the inner wall of the groove 21 is provided with slots 28 on both sides. When the frame rod 26 is placed into the groove 21, the two protruding rods 27 at the bottom end of the frame rod 26 are inserted into the slots 28 inside the groove 21, which can initially limit the angle between the frame rod 26 and the groove 21, and improve the convenience of using the positioning device 2. An arc-shaped groove 29 is provided on one side of the frame rod 26, and the inner wall of the arc-shaped groove 29 is provided with several protrusions. When removing the blade 6, the frame rod 26 can be pulled more easily by pressing the protrusions on the inner wall of the arc-shaped groove 29 with your hand to remove the frame rod 26 from the inside of the groove 21.

[0033] Reference Figure 2-4As shown in this embodiment: a protrusion 210 is fixedly connected to one side of the stop block 25. The protrusion 210 is located on the side of the stop block 25 away from the groove 21. By pressing the protrusion 210 on the top surface of the stop block 25 with your hand, it is more convenient to control the rotation of the stop block 25 and adjust the angle of the stop block 25.

[0034] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown in this embodiment: Protective devices 3 are provided at both ends of the cutter head 5. Each protective device 3 includes two sliding rods 31 and a protective cover 32. The sliding rods 31 slide on the inner wall of the cutter head 5 to install the protective cover 32 on the outer side of the cutter head 5. The two sets of sliding rods 31 and the protective cover 32 are respectively located at both ends of a groove 21. The protective device 3 also includes a ring 33, with L-shaped rods 34 fixedly connected to both sides of the ring 33. When installing the blade 6 using the positioning device 2, the protective cover 32 at both ends of the groove 21 is pulled outwards through the sliding rods 31 on the inner wall of the cutter head 5, exposing the rectangular block 22. After the blade 6 is installed on the outer side of the cutter head 5, the protective cover 32 is pushed near both ends of the groove 21 to... The slide bar 31 slides into the inside of the cutter head 5, so that the cover 32 covers the outside of the rectangular block 22 and the rotating shaft 23. Then, the ring 33 is attached to the surface of the blade 6, so that one end of the L-shaped rods 34 on both sides of the ring 33 is attached to the surface of the cover 32 at both ends of the groove 21. When the blade 6 and the cutter head 5 are connected by bolts, the bolts are passed through the through holes on the outer surface of the ring 33 to fix the ring 33 to the outside of the cutter head 5. The position of the cover 32 is fixed by the L-shaped rods 34 on both sides of the ring 33. The cover 32 protects the rotating shaft 23 and the torsion spring 24 of the positioning device 2, so as to avoid foreign objects entering the rotating shaft 23 and the torsion spring 24 or being affected by impact during the operation of the mowing assembly.

[0035] Reference Figure 2 , Figure 3 and Figure 5 As shown in this embodiment: the two ends of the protective cover 32 are arc-shaped. By setting the two ends of the protective cover 32 to be arc-shaped, it is easier for the edge of the protective cover 32 to contact the foreign object when the cutter head 5 rotates, thus reducing the direct impact on the surface of the protective cover 32 and improving the service life of the protective cover 32. Several reinforcing rods 35 are fixedly connected to the outer surface of the L-shaped rod 34. The two ends of the reinforcing rods 35 are fixedly connected to the two L-shaped rods 34 on both sides of the ring 33 respectively. By setting the reinforcing rods 35, the connection between the two L-shaped rods 34 and the ring 33 can be strengthened, thereby improving the structural strength of the outer surface of the ring 33 and the L-shaped rods 34.

[0036] Working principle: When installing the mowing assembly, push the two side stops 25 at one end of the blade disc 5 to rotate the shaft 23, causing the stops 25 to rotate away from the groove 21 and deform the torsion spring 24. Then, insert the frame rod 26 at one end of the blade 6 into the groove 21 on the outer surface of the blade disc 5. Release the stops 25, and the torsion spring 24 will restore its deformation, causing the shaft 23 and stops 25 to rotate in the original direction. This causes the stops 25 on both sides of the groove 21 to press against the surfaces of the frame rod 26, fixing the position of the frame rod 26 inside the groove 21 and the relative position between the blade 6 and the blade disc 5. Then, push the cover 32 to slide the slide rod 31 into the blade disc 5, so that the cover 32 covers the outside of the rectangular block 22 and the shaft 23. Then, attach the ring 33 to the surface of the blade 6, so that one end of the L-shaped rod 34 on both sides of the ring 33 is attached to the surface of the cover 32 at both ends of the groove 21. Use bolts. The blade 6 is connected to the blade disc 5 by passing through the through holes in the blade 6, the ring 33, and the outer surface of the blade disc 5 and engaging with the nut. The position of the guard 32 is fixed by the L-shaped rods 34 on both sides of the ring 33. The guard 32 protects the rotating shaft 23 and the torsion spring 24 of the positioning device 2. The blade 6 at the other end is installed in the same way. Finally, the frame 1 is installed on the lawnmower body by using bolts to engage with the mounting blocks at both ends of the frame 1. When the lawnmower assembly is working, the drive motor 4 on the frame 1 controls the rotation of the blade disc 5 to drive the blade 6 to rotate and mow the grass. When removing the blade 6, the bolt connection at the blade 6 is released, the ring 33 is removed, and the guards 32 at both ends of the groove 21 are pulled to slide outward on the inner wall of the blade disc 5 through the sliding rod 31 to expose the rectangular block 22. The stop blocks 25 on both sides of the groove 21 are pushed to rotate away from the surface of the frame rod 26, and then the frame rod 26 is removed from the inside of the groove 21.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A lawnmower assembly, comprising a frame (1), a drive motor (4), and a cutter head (5), characterized in that: The frame (1) has mounting blocks at both ends for connecting to a lawnmower, and the mounting blocks have holes on their surfaces for bolts to pass through. The drive motor (4) is mounted on the top of the frame (1) to drive the cutter head (5) to rotate. One end of the cutter head (5) is connected to the output end of the drive motor (4) through a coupling. The two ends of the cutter head (5) are bolted with blades (6). The two ends of the cutter head (5) are provided with positioning devices (2) that can assist in the installation of the blades (6).

2. The lawnmower assembly according to claim 1, characterized in that: The positioning device (2) includes several rectangular blocks (22) and a rotating shaft (23). The outer surfaces of two rectangular blocks (22) are rotatably connected to a rotating shaft (23). One side of the rectangular block (22) is fixedly connected to one side of the cutter head (5). The two ends of the cutter head (5) are respectively provided with grooves (21). One end of the rotating shaft (23) is provided with a torsion spring (24). The torsion spring (24) is fixed on the outside of the cutter head (5) to limit the angle of the rotating shaft (23). The outer surface of the rotating shaft (23) is fixedly connected with a stop block (25). The positioning device (2) also includes a frame rod (26). One end of the frame rod (26) is fixedly connected to one end of the blade (6). The size and shape of the outer surface of the frame rod (26) are adapted to the size and shape of the inner wall of the groove (21).

3. The lawnmower assembly according to claim 2, characterized in that: The bottom end of the frame rod (26) is fixedly connected to two protruding rods (27), and the inner wall of the groove (21) is provided with slots (28) on both sides.

4. The lawnmower assembly according to claim 3, characterized in that: An arc-shaped groove (29) is provided on one side of the frame rod (26), and the inner wall of the arc-shaped groove (29) is provided with several protrusions.

5. The lawnmower assembly according to claim 4, characterized in that: A protrusion (210) is fixedly connected to one side of the stop (25), and the protrusion (210) is located on the side of the stop (25) away from the groove (21).

6. The lawnmower assembly according to claim 5, characterized in that: The cutter head (5) is provided with protective devices (3) at both ends. The protective devices (3) include two sliding rods (31) and a protective cover (32). The sliding rods (31) slide on the inner wall of the cutter head (5) to install the protective cover (32) on the outer side of the cutter head (5). The two sets of sliding rods (31) and the protective cover (32) are respectively located at both ends of a groove (21). The protective device (3) also includes a ring (33). L-shaped rods (34) are fixedly connected to both sides of the ring (33).

7. The lawnmower assembly according to claim 6, characterized in that: The edges of the two ends of the shield (32) are arc-shaped.

8. The lawnmower assembly according to claim 7, characterized in that: The outer surface of the L-shaped rod (34) is fixedly connected with several reinforcing rods (35), and the two ends of the reinforcing rods (35) are fixedly connected to the two L-shaped rods (34) on both sides of the ring (33) respectively.

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