Cutterhead adapter assembly, cutting mechanism and self-moving device

Abstract

The utility model provides a kind of cutter head adapter assembly, cutting mechanism and self-moving equipment, the cutter head adapter assembly includes driving element;Driving disk is transmission connection with driving element, driving disk can be rotated under the driving of driving element;Driven disk is engaged with driving disk, and driven disk is used to be connected with cutter head assembly;Pre-tightening assembly is located on driven disk, for applying axial pre-tightening force to driving disk and driven disk;Matching surface structure is formed between driving disk and driven disk respectively, and matching surface structure is fixed relatively under the action of axial pre-tightening force driving disk and driven disk;Wherein, when the external force that driven disk receives is greater than preset value, driven disk can be displaced relative to driving disk, to make driving disk and driven disk separate.Cutter head assembly encounters impact, jamming and other excessive impact, driven disk can be displaced relative to driving disk, to make driving disk and driven disk separate, weaken the impact that cutter head assembly and motor shaft suffer, improve the service life of cutter head assembly and motor shaft.

Description

Technical Field

[0001] This utility model relates to the technical field of cutter head adapter components, and in particular to a cutter head adapter component, a cutting mechanism, and a self-moving device. Background Technology

[0002] Currently, many self-operated mobile devices are equipped with cutting mechanisms, such as lawnmowers. The cutting mechanism of a lawnmower includes a blade adapter assembly and a blade assembly, with the blade assembly typically mounted on the blade adapter assembly. However, existing blade adapter assemblies have low ultimate strength. If the blade assembly is subjected to excessive impact due to collisions, jamming, or other reasons, it can cause damage to the blade assembly or motor shaft, requiring replacement and repair, thus affecting product use. Summary of the Invention

[0003] This utility model provides a cutter head adapter assembly, a cutting mechanism, and a self-moving device to solve the technical problem that existing cutter head assemblies or motor shafts are prone to damage.

[0004] In a first aspect, this utility model proposes a cutter head adapter assembly, comprising: Drive components; The active disk is connected to the driving component for transmission, and the active disk can rotate under the drive of the driving component; The driven disk engages with the driving disk, and the driven disk is used to connect to the cutter head assembly; A preload assembly, disposed on the driven disc, is used to apply an axial preload force to the driving disc and the driven disc; The mating surface structure is formed between the driving disk and the driven disk respectively, and the mating surface structure makes the driving disk and the driven disk relatively fixed under the action of the axial preload; When the external force on the driven disk is greater than a preset value, the driven disk can be displaced relative to the driving disk to separate the driving disk from the driven disk.

[0005] In some embodiments, the preload assembly includes an elastic element and a support member, the elastic element being located between the support member and the driven disk, and the axial preload force generated by the elastic element acting on the driven disk.

[0006] In some embodiments, the active disc includes a disc body and a mounting section, the mounting section protruding from the side of the disc body near the support member, and the elastic element sleeved on the outer periphery of the mounting section.

[0007] In some embodiments, the drive element includes a drive shaft, the interior of the mounting section is hollow, and the drive shaft passes through and is fixedly connected to the mounting section.

[0008] In some embodiments, the disc body has a first through hole that communicates with the interior of the mounting section. The drive shaft passes through the mounting section and extends from the first through hole onto the side of the disc body away from the support member. The drive shaft is fixedly connected to the disc body by a fastener.

[0009] In some embodiments, the driven disk has a receiving groove in the middle and a second through hole at the bottom of the receiving groove, the disk body is located in the receiving groove and the mounting section passes through the second through hole.

[0010] In some embodiments, the drive shaft is provided with a limiting portion, the limiting portion protruding from the periphery of the drive shaft, and the support member is located below the limiting portion and abuts against it.

[0011] In some embodiments, the mating surface of the driving disk is provided with a first concave-convex structure, and the mating surface of the driven disk is provided with a second concave-convex structure, wherein the first concave-convex structure and the second concave-convex structure are adapted to each other.

[0012] In some embodiments, the mating surface of the driving disc is provided with a plurality of first engagement teeth spaced apart circumferentially, and the mating surface of the driven disc is provided with a plurality of second engagement teeth spaced apart circumferentially, the first engagement teeth and the second engagement teeth meshing with each other; the pressure angle formed by adjacent tooth sides of each engagement tooth is the same, and the angle of the pressure angle is greater than zero degrees and less than ninety degrees.

[0013] Secondly, this utility model also proposes a cutting mechanism, including a cutter head assembly and a cutter head adapter assembly as described in the above embodiments, wherein the cutter head assembly is connected to the driven disc.

[0014] Thirdly, this utility model also proposes a self-moving device, including a device body and the aforementioned cutting mechanism, wherein the cutting mechanism is disposed on the device body.

[0015] The cutter head adapter assembly provided in this embodiment of the utility model has a pre-tightening component mounted on the driven disc, which can apply axial pre-tightening force to both the driving and driven discs. Mating surface structures are formed between the driving and driven discs, respectively. Under the action of the axial pre-tightening force, the driving and driven discs are relatively fixed. With this configuration, under normal circumstances, when the external force on the driven disc is not greater than a preset value (i.e., the external force on the driven disc is not greater than the pre-tightening force applied to the driven disc by the pre-tightening component), the driving and driven discs are relatively fixed, and the driving component drives the driving disc to rotate. The driven disc can drive the driven disc to rotate, and the driven disc drives the cutter head assembly to work. When the external force on the driven disc exceeds a preset value, that is, when the external force on the driven disc exceeds the preload applied to the driven disc by the preload assembly, the driven disc can displace relative to the driving disc to separate the driving disc from the driven disc. This prevents the driving disc from continuing to drive the driven disc to rotate, thereby preventing the driven disc from continuing to drive the cutter head assembly to rotate, reducing the impact on the cutter head assembly and motor shaft, improving the service life of the cutter head assembly and motor shaft, and ensuring the safety of the cutter head assembly and motor shaft in use. The displacement of the driven disc relative to the driving disc can be axial or circumferential. Axial displacement is the displacement caused by an upward external force, while circumferential displacement is the displacement of the driven disc in the circumferential direction when the cutter head assembly hits a large obstacle such as a rock, thus providing a buffer and reducing the impact on other parts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first isometric view of the cutter head adapter assembly in one embodiment of the present invention; Figure 2 This is a second isometric view of the cutter head adapter assembly in one embodiment of the present invention; Figure 3 This is an exploded view of the cutter head adapter assembly in one embodiment of this utility model; Figure 4 This is a cross-sectional view of the cutter head adapter assembly in one embodiment of the present invention; Figure 5 This is an isometric view of the driven disk in one embodiment of the present invention.

[0018] Among them, 1. driving component; 2. active disk; 21. disk body; 22. mounting section; 23. first through hole; 3. driven disk; 31. receiving groove; 32. second through hole; 33. fixing hole; 4. pre-tightening assembly; 41. elastic element; 42. support component; 5. fastener; 6. limiting part; 7. first concave-convex structure; 8. second concave-convex structure. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] This utility model provides a cutter head adapter assembly, see reference. Figure 1 , Figure 2 , Figure 3 and Figure 4 The assembly includes a drive component 1; a drive disk 2, which is connected to the drive component 1 and can rotate under the drive of the drive component 1; a driven disk 3, which engages with the drive disk 2 and is used to connect with the cutter head assembly; a preload assembly 4, which is disposed on the driven disk 3 and is used to apply axial preload to the drive disk 2 and the driven disk 3; and a mating surface structure, which is formed between the drive disk 2 and the driven disk 3 respectively. Under the action of the axial preload, the mating surface structure makes the drive disk 2 and the driven disk 3 relatively fixed; wherein, when the external force on the driven disk 3 is greater than a preset value, the driven disk 3 can be displaced relative to the drive disk 2 to separate the drive disk 2 and the driven disk 3.

[0023] As an example, a cutter head adapter assembly is used to mount a cutter head assembly. The cutter head adapter assembly includes a drive component 1, a driving disc 2, a driven disc 3, a preload assembly 4, and a mating surface structure. The drive component 1 is connected to a power source to transmit power (the drive component 1 can be connected to a motor shaft, or it can be connected to a motor shaft). The driving disc 2 is connected to the drive component 1 and can rotate under the drive of the drive component 1. The driven disc 3 is engaged with the driving disc 2, so that the driving disc 2 can drive the driven disc 3 to rotate. The driven disc 3 is used to connect to the cutter head assembly, so that the cutter head assembly can be driven to work through the driven disc 3. The preload assembly 4 is mounted on the driven disc 3 and can apply axial preload to both the driving disc 2 and the driven disc 3. Mating surfaces are formed between the driving disc 2 and the driven disc 3, respectively. Under the action of the axial preload, the mating surfaces fix the driving disc 2 and the driven disc 3 relatively. With this configuration, under normal circumstances, when the external force on the driven disc 3 is not greater than a preset value (i.e., the external force on the driven disc 3 is not greater than the preload applied to the driven disc 3 by the preload assembly 4), the driving disc 2 and the driven disc 3 are relatively fixed. The driving component 1 drives the driving disc 2 to rotate, and the driving disc 2 can drive the driven disc 3... The driven disc 3 rotates, driving the cutter head assembly to work. When the external force on the driven disc 3 exceeds a preset value—that is, when the external force on the driven disc 3 exceeds the preload applied to the driven disc 3 by the preload assembly 4—the driven disc 3 can displace relative to the driving disc 2. This allows the driving disc 2 to separate from the driven disc 3, preventing the driving disc 2 from continuing to drive the driven disc 3 to rotate. Consequently, the driven disc 3 continues to drive the cutter head assembly to rotate, reducing the impact on the cutter head assembly and motor shaft, increasing their service life, and ensuring their safe operation. The displacement of the driven disc 3 relative to the driving disc 2 can be axial or circumferential. Axial displacement is the displacement caused by an upward external force, while circumferential displacement is the circumferential displacement of the driven disc 3 when the cutter head assembly strikes a large obstacle such as a rock, thus providing a buffer and reducing the impact on other parts.

[0024] In one embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4 The preload assembly 4 includes an elastic element 41 and a support member 42. The elastic element 41 is located between the support member 42 and the driven disc 3. The axial preload force generated by the elastic element 41 acts on the driven disc 3.

[0025] As an example, the preload assembly 4 includes an elastic element 41 and a support member 42. During installation, the support member 42 is mounted on the drive member 1, and the elastic element 41 is placed between the support member 42 and the driven disk 3. The axial preload force generated by the elastic element 41 acts on the driven disk 3. Under the action of the axial preload force, the drive disk 2 and the driven disk 3 are relatively fixed, so that the drive member 1 drives the drive disk 2 to rotate. The drive disk 2 can drive the driven disk 3 to rotate, and the driven disk 3 drives the cutter head assembly to work.

[0026] The elastic element 41 is a compression spring, but it can be replaced with any part that can provide preload pressure and has sufficient upward movement allowance. The support 42 is a washer. In addition, the preload assembly 4 can also be used for limiting the output torque setting of power tools (electric drills, electric screwdrivers, etc.). The support 42 and the drive 1 are threaded together. By rotating the support 42, the compression of the elastic element 41 can be changed to switch the preload force, thereby changing the output torque limit.

[0027] In one embodiment, reference is made to Figure 3 and Figure 4 The active disk 2 includes a disk body 21 and a mounting section 22. The mounting section 22 protrudes from the side of the disk body 21 near the support member 42, and the elastic element 41 is sleeved on the outer periphery of the mounting section 22.

[0028] As an example, the driving disc 2 includes a disc body 21 and a mounting section 22. In the design, the mounting section 22 protrudes from the side of the disc body 21 near the support member 42, and the elastic element 41 is sleeved on the outer periphery of the mounting section 22. This makes the elastic element 41 concentric with the driving disc 2, and the axial preload generated by the elastic element 41 can be evenly applied to the driving disc 2 and the driven disc 3, so that the driving disc 2 and the driven disc 3 are relatively fixed.

[0029] In one embodiment, reference is made to Figure 4 The drive component 1 includes a drive shaft. The interior of the mounting section 22 is hollow, and the drive shaft passes through the mounting section 22 and is fixedly connected to it.

[0030] As an example, the drive unit 1 includes a drive shaft and the interior of the mounting section 22 is hollow. During installation, the drive shaft is inserted into the mounting section 22 and fixedly connected thereto. When the drive shaft rotates, it can drive the drive disc 2 to rotate.

[0031] In one embodiment, reference is made to Figure 2 and Figure 4 The disc body 21 has a first through hole 23, which communicates with the interior of the mounting section 22. The drive shaft passes through the mounting section 22 and extends out of the first through hole 23 on the side of the disc body 21 away from the support member 42. The drive shaft is fixedly connected to the disc body 21 by a fastener 5.

[0032] As an example, a first through hole 23 is provided in the disc body 21, which communicates with the interior of the mounting section 22. During installation, the drive shaft is inserted into the mounting section 22 and extends out of the first through hole 23 from the side of the disc body 21 away from the support member 42. The drive shaft is fixedly connected to the disc body 21 by a fastener 5. This facilitates the assembly of the drive shaft and the drive disc 2 together, increases the connection area between the drive shaft and the drive disc 2, thereby improving the torque transmission capability, reducing contact stress, extending service life, enhancing connection stability, reducing vibration and noise, improving alignment accuracy, and reducing off-center load; it also facilitates the disassembly and assembly of the drive shaft and the drive disc 2.

[0033] In one embodiment, reference is made to Figure 2 , Figure 3 and Figure 4 The driven disk 3 has a receiving groove 31 in the middle and a second through hole 32 at the bottom of the receiving groove 31. The disk body 21 is located in the receiving groove 31 and the mounting section 22 passes through the second through hole 32.

[0034] As an example, a receiving groove 31 and a second through hole 32 located at the bottom of the receiving groove 31 are provided in the middle of the driven plate 3. During installation, the plate body 21 is installed in the receiving groove 31 and the mounting section 22 passes through the second through hole 32. This realizes the assembly of the driving plate 2 and the driven plate 3 together, increases the connection area between the driving plate 2 and the driven plate 3, thereby improving the torque transmission capability, reducing contact stress, extending service life, enhancing connection stability, reducing vibration and noise, improving alignment accuracy, and reducing off-center load.

[0035] In one embodiment, reference is made to Figure 1 , Figure 3 and Figure 4 The drive shaft is provided with a limiting part 6, which protrudes from the periphery of the drive shaft, and the support member 42 is located below the limiting part 6 and abuts against it.

[0036] As an example, a limiting part 6 is provided on the drive shaft, the limiting part 6 protruding from the periphery of the drive shaft, and the support member 42 is located below the limiting part 6 and abuts against it, thus providing positioning support for the installation of the support member 42, thereby providing installation space for the elastic element 41.

[0037] In one embodiment, reference is made to Figure 3 and Figure 5 The active disk 2 has a first concave-convex structure 7 on its mating surface, and the driven disk 3 has a second concave-convex structure 8 on its mating surface. The first concave-convex structure 7 and the second concave-convex structure 8 are adapted to each other.

[0038] As an example, the mating surface of the driving disc 2 is provided with a first concave-convex structure 7, and the mating surface of the driven disc 3 is provided with a second concave-convex structure 8. The first concave-convex structure 7 and the second concave-convex structure 8 are adapted to each other. With this configuration, after applying a preload using the elastic element 41, the driving disc 2 can transmit a certain torque to the driven disc 3. A torque exceeding this value will cause the driving disc 2 to be lifted and begin to slide. Specifically, under the action of axial preload, the first concave-convex structure 7 and the second concave-convex structure 8 combine, making the driving disc 2 and the driven disc 3 relatively fixed. When the driven disc 3... When the external force received is greater than the preset value, that is, when the external force received by the driven disk 3 is greater than the preload applied to the driven disk 3 by the preload assembly 4, the driven disk 3 can be displaced relative to the driving disk 2. The first concave-convex structure 7 and the second concave-convex structure 8 separate, so that the driving disk 2 and the driven disk 3 are separated, preventing the driving disk 2 from continuing to drive the driven disk 3 to rotate, thereby preventing the driven disk 3 from continuing to drive the cutter head assembly to rotate, reducing the impact on the cutter head assembly and the motor shaft, improving the service life of the cutter head assembly and the motor shaft, and ensuring the safety of the cutter head assembly and the motor shaft in use.

[0039] In one embodiment, the mating surface of the driving disc 2 is provided with a plurality of first engagement teeth spaced apart along the circumference, and the mating surface of the driven disc 3 is provided with a plurality of second engagement teeth spaced apart along the circumference. The first engagement teeth and the second engagement teeth mesh with each other. The pressure angle formed by the adjacent tooth sides of each engagement tooth is the same, and the angle of the pressure angle is greater than zero degrees and less than ninety degrees.

[0040] As an example, the mating surface of the driving disc 2 is provided with multiple first engagement teeth spaced circumferentially, and the mating surface of the driven disc 3 is provided with multiple second engagement teeth spaced circumferentially. The first engagement teeth and the second engagement teeth mesh with each other. With this configuration, after applying a preload using the elastic element 41, the driving disc 2 can transmit a certain torque to the driven disc 3. A torque exceeding this value will cause the driving disc 2 to be lifted and begin to slide. Specifically, under the action of axial preload, the first engagement teeth and the second engagement teeth engage, making the driving disc 2 and the driven disc 3 relatively fixed. When the driven disc 3... When the external force on the driven disc 3 exceeds a preset value, meaning the external force on the driven disc 3 exceeds the preload applied to the driven disc 3 by the preload assembly 4, the driven disc 3 can displace relative to the driving disc 2. The first and second engagement teeth separate, thus separating the driving disc 2 from the driven disc 3. This prevents the driving disc 2 from continuing to drive the driven disc 3 to rotate, thereby preventing the driven disc 3 from continuing to drive the cutter head assembly to rotate. This reduces the impact on the cutter head assembly and motor shaft, improves their service life, and ensures their safe operation. The pressure angles formed by adjacent teeth of each engagement tooth are the same, and the angle is greater than zero degrees and less than ninety degrees, making the engagement and disengagement between the first and second engagement teeth smoother. Furthermore, the mating surfaces of the driving disc 2 and driven disc 3 with pressure angles can be replaced with planes of suitable friction coefficients.

[0041] This utility model embodiment provides a cutting mechanism, see reference Figure 2 , Figure 4 and Figure 5 It includes a cutter head assembly and a cutter head adapter assembly, with the cutter head assembly connected to the driven disk 3.

[0042] As an example, the cutting mechanism includes a cutter head assembly and a cutter head adapter assembly. During installation, the cutter head assembly is connected to the driven plate 3. Specifically, the driven plate 3 has at least three fixing holes 33 for circumferential positioning. The fixing holes 33 are threaded holes, and screws are used to lock the cutter head assembly onto the driven plate 3.

[0043] This utility model provides a self-moving device, including a device body and a cutting mechanism, with the cutting mechanism disposed on the device body.

[0044] As an example, a self-moving device (such as a lawnmower) includes a main body and a cutting mechanism. During installation, a cutter head adapter assembly of the cutting mechanism is mounted on the main body. The cutter head adapter assembly is used to mount the cutter head assembly. The cutter head adapter assembly includes a drive component 1, a driving disc 2, a driven disc 3, a pre-tensioning component 4, and a mating surface structure. The drive component 1 is connected to a power source to transmit power. The driving disc 2 is driven by the drive component 1 and can rotate under the drive of the drive component 1. The driven disc 3 engages with the driving disc 2, so that the driving disc 2 can drive the driven disc 3 to rotate. The driven disc 3 is used to connect to the cutter head assembly, so that the cutter head assembly can be driven to work through the driven disc 3. The preload assembly 4 is mounted on the driven disc 3 and can apply axial preload to both the driving disc 2 and the driven disc 3. Mating surfaces are formed between the driving disc 2 and the driven disc 3, respectively. Under the action of the axial preload, the mating surfaces fix the driving disc 2 and the driven disc 3 relatively. With this configuration, under normal circumstances, when the external force on the driven disc 3 is not greater than a preset value (i.e., the external force on the driven disc 3 is not greater than the preload applied to the driven disc 3 by the preload assembly 4), the driving disc 2 and the driven disc 3 are relatively fixed. The driving component 1 drives the driving disc 2 to rotate, and the driving disc 2 can drive the driven disc 3... The driven disc 3 rotates, and the driven disc 3 drives the cutter head assembly to work. When the external force on the driven disc 3 is greater than the preset value, that is, when the external force on the driven disc 3 is greater than the preload applied to the driven disc 3 by the preload assembly 4, the driven disc 3 can be displaced relative to the driving disc 2, so that the driving disc 2 and the driven disc 3 are separated, preventing the driving disc 2 from continuing to drive the driven disc 3 to rotate, thereby preventing the driven disc 3 from continuing to drive the cutter head assembly to rotate, reducing the impact on the cutter head assembly and the motor shaft, improving the service life of the cutter head assembly and the motor shaft, and ensuring the safety of the cutter head assembly and the motor shaft in use.

[0045] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A cutter head adapter assembly, characterized in that, include: Drive components; The active disk is connected to the driving component for transmission, and the active disk can rotate under the drive of the driving component; The driven disk engages with the driving disk, and the driven disk is used to connect to the cutter head assembly; A preload assembly, disposed on the driven disc, is used to apply an axial preload force to the driving disc and the driven disc; The mating surface structure is formed between the driving disk and the driven disk respectively, and the mating surface structure makes the driving disk and the driven disk relatively fixed under the action of the axial preload; When the external force on the driven disk is greater than a preset value, the driven disk can be displaced relative to the driving disk to separate the driving disk from the driven disk.

2. The cutter head adapter assembly according to claim 1, characterized in that, The preload assembly includes an elastic element and a support member. The elastic element is located between the support member and the driven disk, and the axial preload force generated by the elastic element acts on the driven disk.

3. The cutter head adapter assembly according to claim 2, characterized in that, The active disc includes a disc body and a mounting section. The mounting section protrudes from the side of the disc body near the support member, and the elastic element is sleeved on the outer periphery of the mounting section.

4. The cutter head adapter assembly according to claim 3, characterized in that, The drive component includes a drive shaft, the mounting section is hollow inside, and the drive shaft passes through and is fixedly connected to the mounting section.

5. The cutter head adapter assembly according to claim 4, characterized in that, The disc body has a first through hole, which communicates with the interior of the mounting section. The drive shaft passes through the mounting section and extends out of the first through hole from the side of the disc body away from the support member. The drive shaft is fixedly connected to the disc body by a fastener.

6. The cutter head adapter assembly according to claim 5, characterized in that, The driven disk has a receiving groove in the middle and a second through hole at the bottom of the receiving groove. The disk body is located in the receiving groove and the mounting section passes through the second through hole.

7. The cutter head adapter assembly according to claim 4, characterized in that, The drive shaft is provided with a limiting part, which protrudes from the periphery of the drive shaft, and the support member is located below the limiting part and abuts against it.

8. The cutter head adapter assembly according to claim 1, characterized in that, The active disk has a first concave-convex structure on its mating surface, and the driven disk has a second concave-convex structure on its mating surface, wherein the first concave-convex structure and the second concave-convex structure are adapted to each other.

9. The cutter head adapter assembly according to claim 8, characterized in that, The active disk has a plurality of first engagement teeth spaced circumferentially on its mating surface, and the driven disk has a plurality of second engagement teeth spaced circumferentially on its mating surface. The first engagement teeth and the second engagement teeth mesh with each other. The pressure angle formed by the adjacent tooth sides of each engagement tooth is the same, and the pressure angle is greater than zero degrees and less than ninety degrees.

10. A cutting mechanism, characterized in that, It includes a cutter head assembly and a cutter head adapter assembly as described in any one of claims 1 to 9, wherein the cutter head assembly is connected to the driven disc.

11. A self-moving device, characterized in that, It includes a main body of equipment and the cutting mechanism as described in claim 10, wherein the cutting mechanism is disposed on the main body of equipment.

Images