Cutter head assembly and mower

Abstract

The utility model relates to the technical field of mowing machine cutting structures, and discloses a cutterhead assembly and a mowing machine, the cutterhead assembly mainly comprises a cutterhead main body, a rotating part and a blade assembly, and the cutterhead main body is provided with at least one mounting cavity; the rotating part is arranged in the mounting cavity and can rotate in the mounting cavity under the action of external force; and the blade assembly is oppositely connected with the cutterhead main body and covers the opening of the mounting cavity. The blade assembly is provided with a first butt joint part, and the first butt joint part is connected with the rotating piece in a matched mode, so that the blade assembly can synchronously rotate along with the rotating piece to conduct mowing work. By means of the design, the problem that grass clippings are clamped into an existing mower due to the gap between the blade and the cutter head body is effectively solved, and the working efficiency of the mower is improved. Through the design of the rotating part, the blade assembly can stably rotate under the action of centrifugal force, so that uniform cutting of lawns is guaranteed, and the shutdown or maintenance requirements caused by clamping of grass clippings are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mower cutting structure, and further relates to a cutterhead assembly mower. BACKGROUND

[0002] In an intelligent mower, the cutting blade often gets stuck with grass clippings during operation, which causes the cutterhead to be blocked from rotating, thereby affecting the mowing efficiency. The traditional solution is to fix the blade with holes on the cutterhead by screws, and leave a certain gap between the screw and the through hole of the blade to ensure that the blade can rotate freely. With the action of centrifugal force, the blade edge will be thrown out when the cutterhead rotates, and the mowing will be performed. However, due to the gap between the blade and other structural parts, grass clippings are easily stuck in the gap, which causes the blade to be unable to move smoothly, thereby affecting the mowing effect. CONTENT OF THE UTILITY MODEL

[0003] In view of the above technical problems, the purpose of the present application is to provide a blade assembly and a mower, which can effectively avoid the situation that grass clippings are stuck in the mower structure in the prior art, affecting the normal movement of the blade, and can ensure the normal mowing.

[0004] In order to achieve the above purpose, the present application provides a cutterhead assembly for a mower, comprising:

[0005] A cutterhead main body is provided with at least one mounting cavity;

[0006] A rotating member is arranged in the mounting cavity and can rotate in the mounting cavity under the action of external force;

[0007] A blade assembly is connected to the cutterhead main body and covers the opening of the mounting cavity. The blade assembly has a first docking part which is connected to the rotating member, so that the blade assembly can rotate synchronously with the rotating member to perform mowing work.

[0008] In some embodiments, the blade assembly includes a blade body and a cooperating member connected to the cutterhead main body to close the opening of the mounting cavity by the cooperating member. The first docking part is arranged on one side end face of the cooperating member.

[0009] The blade body is fixed to the other side end face of the cooperating member, and the blade body rotates synchronously with the cooperating member to cut weeds.

[0010] In some embodiments, the rotating member is a circular ring structure having a first assembly hole penetrating through the center thereof.

[0011] The first connecting part is a rotating protrusion which is inserted into the first assembly hole to form a fitting connection between the rotating member and the first connecting part.

[0012] In some embodiments, the rotating member is a rotating bearing which comprises an inner ring, an outer ring and a plurality of rolling bodies, the outer ring is fixed in the mounting cavity, the rolling bodies are located between the inner ring and the outer ring to realize the rotation of the inner ring relative to the outer ring, the rotating protrusion is connected with the inner ring in a fitting manner, so that the fitting member rotates synchronously when the inner ring rotates.

[0013] In some embodiments, the side surface of the fitting member away from the cutter disc body is a first contact surface, the side surface of the blade body towards the cutter disc body is a second contact surface, the first contact surface and the second contact surface are both flat surfaces and abut against each other.

[0014] In some embodiments, the fitting member has a second connecting part, the second connecting part and the first connecting part are respectively arranged on two sides of the fitting member away from each other, and the second connecting part is used for the relative fixed connection between the fitting member and the blade body.

[0015] In some embodiments, the second connecting part comprises a second assembly hole which extends from one side of the fitting member away from the cutter disc body to the other side, thereby forming a partially or fully penetrating hole structure on the fitting member.

[0016] The blade body is provided with a mounting hole, and the cutter assembly further comprises a fixing member which sequentially passes through the mounting hole and the second assembly hole from one side of the blade body to relatively fix the blade body and the fitting member.

[0017] In some embodiments, the second connecting part further comprises a connecting protrusion which is arranged on the side of the fitting member away from the cutter disc body, and the second assembly hole penetrates the connecting protrusion, so that the mounting hole and the connecting protrusion are correspondingly arranged in a sleeved manner when the blade body is connected to the fitting member.

[0018] In some embodiments, the connecting protrusion has a non-circular contour, and the contour of the mounting hole is matched with the contour of the connecting protrusion to prevent the relative rotation of the blade body relative to the fitting member.

[0019] Another aspect of the present application also provides a mower comprising the cutter assembly described above.

[0020] Compared with the prior art, the cutter head assembly and the lawn mower provided by the application have the following beneficial effects:

[0021] By setting the matched connection of the rotating member and the blade assembly, the blade assembly can rotate synchronously with the rotating member, the blade assembly is relatively connected with the cutter head body, and the installation cavity opening of the cutter head body is sealed by the blade assembly, which can effectively prevent the accumulation of grass clippings and avoid the hindering of the rotation of the blade assembly by the grass clippings, effectively reducing the resistance of the rotation of the blade and improving the efficiency and quality of mowing. BRIEF DESCRIPTION OF DRAWINGS

[0022] The above features, technical characteristics, advantages and implementation manners of the application will be further described in the following preferred embodiments in a clear and understandable manner in combination with the drawings.

[0023] Figure 1 is a cross-sectional structure schematic diagram of the cutter head assembly in the prior art;

[0024] Figure 2 is an exploded structure schematic diagram of the cutter head assembly in an embodiment of the application;

[0025] Figure 3 is a cross-sectional structure schematic diagram of the cutter head assembly in an embodiment of the application;

[0026] Figure 4 is a structure schematic diagram of the matching member in an embodiment of the application;

[0027] Figure 5 is a structure schematic diagram of the rotating member in an embodiment of the application;

[0028] Figure 6 is a whole structure schematic diagram of the cutter head assembly in an embodiment of the application.

[0029] Explanation of reference numerals: cutter head body 1; installation cavity 10; rotating member 2; first assembly hole 20; blade assembly 3; blade body 31; second contact surface 310; installation hole 311; matching member 32; first contact surface 320; first butt joint part 321; second butt joint part 322; second assembly hole 3220; butt joint protrusion 3221; inner ring 41; outer ring 42; rolling body 43; fixing member 5. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the specific implementation manners of the application will be described below with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and other embodiments can also be obtained.

[0031] For simplicity and conciseness of the drawings, only parts related to the application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one" situation.

[0032] It should be further understood that the term "and / or" used in the specification and the appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0033] In this document, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connect" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0035] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In the existing intelligent mower technology, the cutting blade is often blocked by grass clippings during operation, which causes the rotation of the cutter to be blocked, thereby affecting the mowing efficiency. As shown in Figure 1 The existing technology usually uses screws a to fix the perforated blade b on the cutter c (an insert nut d is arranged in the cutter c for connection with the screw a), leaving a certain gap between the screw a and the blade b, which is to ensure that the blade b can rotate freely. When the cutter c rotates, the blade b will be thrown out under the action of centrifugal force, and the mowing operation can be carried out.

[0037] However, this design has certain limitations. Due to the gap between the blade b and the cutterhead c, grass clippings are prone to accumulate in this area, and then through the gap between the screw a and the blade b, they are clamped into the via hole of the blade b. This not only affects the free rotation of the blade b, but also can cause the blade b to run unstable, thereby reducing the efficiency and quality of mowing. In addition, the accumulation of grass clippings can also increase the load of the cutterhead c, thereby affecting the overall performance and service life of the mower. Therefore, the prior art cannot effectively solve the problem of grass clippings clamped into the cutterhead via hole, resulting in low working efficiency and frequent maintenance of the mower.

[0038] In one embodiment, referring to the description attached Figure 1 , a cutterhead assembly provided by the present application is described, which can avoid the situation of grass clippings clamped into the cutterhead via hole, thereby reducing the resistance of the blade rotation and improving the efficiency and quality of mowing.

[0039] Referring to the description attached Figure 2 and Figure 3 , a cutterhead assembly provided by the present application, mainly applied to a mower, comprises a cutterhead body 1, a rotating part 2, and a blade assembly 3, wherein the cutterhead body 1 is the core part of the cutterhead assembly, provided with at least one mounting cavity 10 for accommodating the rotating part 2 and providing rotation space for the rotating part 2. It should be noted that the shape and size of the cutterhead body 1 can be adjusted according to specific needs to adapt to different types of mowers.

[0040] The rotating part 2 is arranged in the mounting cavity 10 of the cutterhead body 1 and can rotate under the action of external force. In the present application, the rotation of the rotating part 2 is driven by centrifugal force, and when the cutterhead body 1 is subjected to external force and starts to rotate, the rotating part 2 rotates synchronously under the action of centrifugal force. The blade assembly 3 is connected to the cutterhead body 1 in a relative manner and covers the opening part of the mounting cavity 10. As Figure 4 shown, the blade assembly 3 has a first docking part 321, which cooperates with the rotating part 2 to connect, so that the blade assembly 3 rotates synchronously with the rotating part 2 under the action of centrifugal force and performs mowing work.

[0041] It can be understood that due to the cooperation between the rotating part 2 and the blade assembly 3, the blade can rotate stably and synchronously, avoiding the situation of grass clippings clamped into the cutterhead via hole, and ensuring the free rotation of the blade, thereby greatly improving the mowing efficiency. On the other hand, the blade assembly 3 can cover the opening of the mounting cavity 10, which can effectively prevent grass clippings from entering the inside of the mounting cavity 10 and reduce the interference of grass clippings on the rotation of the blade.

[0042] Generally, the cutter head body 1 is connected with the driving device, and the cutter head body 1 is driven to rotate by the driving device. The cutter head body 1 is usually made of wear-resistant and corrosion-resistant materials to ensure stability and durability during long-term use, and at the same time, should have strong mechanical strength, can withstand the centrifugal force and other external forces during the cutting process of the blade, usually using wear-resistant and high-strength metal materials (such as steel or aluminum alloy).

[0043] Through the design of the rotating part 2, the blade assembly 3 and the cutter head body 1 are relatively movably connected, avoiding the problem that grass clippings are stuck in the gap between the blade and the cutter head in the traditional technology. The blade assembly 3 rotates with the rotation of the rotating part 2, effectively preventing grass clippings from entering the through-hole area of the cutter head, thereby avoiding the accumulation of grass clippings and hindering the rotation of the blade, and improving the mowing efficiency.

[0044] Compared with the traditional way of connecting the blade and the cutter head body 1 by bolts, the design of the present application avoids the need for a larger gap between the blade and the cutter head body 1, reducing the frequency of maintenance and cleaning caused by the accumulation of grass clippings. The overall structure is more compact, the maintenance is more convenient, and the equipment failure rate and maintenance cost are reduced. Moreover, the synchronous rotation of the blade assembly 3 with the rotating part 2 not only reduces the interference of grass clippings on the rotation of the blade, but also ensures that the blade can stably perform cutting work, improving the mowing precision and effect.

[0045] Optionally, referring to the drawings attached Figure 6 in the specification, the mounting cavity 10 of the cutter head body 1 can be provided with multiple mounting cavities 10 according to actual needs, and multiple blade assemblies 3 can be provided on the cutter head body 1. Moreover, protective covers or sealing devices can be provided in the cutter head assembly according to different working environments to prevent grass clippings from splashing or entering the cutter head, thereby prolonging the service life of the mower.

[0046] Further, the blade assembly 3 includes a blade body 31 and a cooperating part 32. Specifically, the cooperating part 32 is connected with the cutter head body 1, which can effectively close the opening of the mounting cavity 10 of the cutter head body 1, ensuring that no grass or other objects enter the inside of the cutter head during rotation of the cutter head, thereby reducing the situation that the mowing efficiency is reduced or the rotation of the blade is hindered due to the accumulation of grass clippings.

[0047] The first connecting part 321 is arranged on one side end surface of the fitting part 32 and is connected with the corresponding part of the rotating part 2, so that the fitting part 32 can rotate synchronously with the rotating of the cutter head main body 1. The blade body 31 is fixed on the other side end surface of the fitting part 32, and the blade body 31 and the fitting part 32 are fixed together by fastening devices or fixing structures. During rotation, the blade body 31 rotates synchronously with the fitting part 32, thereby effectively completing the mowing work. The shape and material of the blade body 31 can be optimized according to actual needs, for example, high-hardness steel, alloy or wear-resistant material is used to enhance the cutting effect and prolong the service life.

[0048] It can be understood that the opening of the mounting cavity 10 is closed by the fitting part 32, which avoids the entry of grass clippings into the inside of the cutter head assembly, solves the problem of grass clippings being stuck in the gap between the blade and the cutter head in the traditional technology, ensures smooth rotation of the blade, and improves the mowing efficiency. In addition, the synchronous rotation of the blade body 31 with the fitting part 32 can effectively improve the rotation stability of the blade. Under the action of centrifugal force, the blade body 31 can always maintain a relatively balanced rotating state, avoiding the vibration or instability caused by the interference of grass clippings or sundries during the rotation of the blade in the traditional design.

[0049] In one embodiment, the fitting part 32 can be fixed on the cutter head main body 1 by means of a plurality of fastening devices or fixing structures. Figure 3 and Figure 4 The side surface of the fitting part 32 away from the cutter head main body 1 is designed as a first contact surface 320, and the side surface of the blade body 31 towards the cutter head main body 1 is designed as a second contact surface 310. Both of them are flat and in a face-to-face abutting state.

[0050] The first contact surface 320 and the second contact surface 310 are combined by means of plane contact, which can effectively transmit the force generated during cutting and ensure that the cutting effect of the blade is not affected. Moreover, the face-to-face contact can increase the contact area, thereby enhancing the carrying capacity of the contact surface and making the connection between the blade and the cutter head main body 1 more reliable.

[0051] It can be understood that plane contact avoids the unstable factors caused by curved or irregular contact surfaces. The face-to-face abutting design can make the blade body 31 more stable during work, avoid the change of the position of the blade caused by vibration or external force interference, and ensure that the mower can still maintain a stable working state at high speed. Compared with the traditional bolt connection method, the face-to-face contact design makes the contact between the blade and the fitting part 32 more uniform, avoiding local wear caused by point contact.

[0052] Optionally, the first contact surface 320 and the second contact surface 310 can be made of high-strength materials or wear-resistant materials, or the surfaces can be treated, such as hardening, coating or smoothing, to prolong the service life.

[0053] Further, in one embodiment, as shown, the rotating member 2 adopts a circular ring structure, and a first assembly hole 20 is arranged in the center of the rotating member 2. The circular ring shape of the rotating member 2 provides uniform force distribution, so that when the cutter head rotates, the rotating member 2 can be uniformly subjected to the action of centrifugal force, thereby driving the blade assembly 3 to rotate synchronously, and the blade assembly 3 can stably perform the mowing task. Figure 5

[0054] At the same time, the first connecting part 321 is a rotating protrusion located on the matching part 32 of the blade assembly 3, and the shape of the rotating protrusion is adapted to the first assembly hole 20 on the rotating member 2, so that the two can be connected by insertion. The cooperation of the rotating protrusion and the first assembly hole 20 forms a firm connection structure, which ensures the rotation synchronization between the rotating member 2 and the blade assembly 3.

[0055] In order to further improve the adaptability, reliability and working performance of the structure, the setting form of the rotating member 2 and the first connecting part 321 can be diversified according to different needs. For example, a ring groove is arranged on the inner side of the rotating member 2, so that there is a relative rib on the rotating protrusion which can be firmly embedded in the ring groove, thereby forming a more stable connection.

[0056] In some embodiments, a plurality of matching positions can also be provided between the rotating member 2 and the first connecting part 321, and the user can select different matching positions for adjustment according to the hardness or height of the grass, so as to achieve the best mowing effect.

[0057] Based on the above, in the drawings of the present application, the rotating member 2 adopts a rotating bearing, which mainly includes an inner ring 41, an outer ring 42 and a plurality of rolling bodies 43. The use of the rotating bearing can effectively improve the rotation stability of the cutter head assembly, reduce friction, and improve the stability and efficiency of the mower during operation.

[0058] Specifically, the outer ring 42 is fixed in the mounting cavity 10 of the cutter head body 1, and the rolling bodies 43 are located between the inner ring 41 and the outer ring 42, and the rotation of the rolling bodies 43 realizes the rotation of the inner ring 41 relative to the outer ring 42. The inner ring 41 is connected with the rotating protrusion in a matched manner, so that the matching part 32 rotates synchronously when the inner ring 41 rotates, thereby driving the blade assembly 3 to perform mowing work.

[0059] It is easy to understand that the rotating bearing replaces the general sliding contact by the rolling bodies 43 (such as steel balls or rollers), which greatly reduces friction and wear, not only prolongs the service life of the rotating member 2, but also makes the operation of the mower more stable. Specifically, the inner ring 41 and the outer ring 42 transmit power through the relative movement of the rolling bodies 43, and this mode has higher transmission efficiency than the traditional friction contact mode, and can better respond to the high-speed rotation demand of the blade assembly 3.​

[0060] The shape of the rotating protrusion can be customized as needed. For example, it can be designed as a circular cross-section, a polygonal cross-section, etc., to ensure more stable cooperation with the inner ring 41 and adjust the size according to different use loads to provide the best transmission effect.

[0061] In one embodiment, the cooperating piece 32 is designed with a second connecting part 322, which is arranged on the side opposite to the first connecting part 321 of the cooperating piece 32. The first connecting part 321 is connected with the rotating piece 2, and the second connecting part 322 is used to realize the relative fixed connection between the cooperating piece 32 and the blade body 31. Through this design, the blade assembly 3 can not only maintain good stability during connection with the cutter head body 1, but also ensure the reliable fixation of the blade body 31, avoiding displacement or loosening during use.

[0062] It can be understood that the relative fixed connection between the second connecting part 322 of the cooperating piece 32 and the blade body 31 ensures that the blade body 31 can remain relatively stationary during work, and will not produce excessive displacement or vibration due to external force, thereby affecting the mowing effect.

[0063] In the working state of the blade assembly 3, the first connecting part 321 and the second connecting part 322 are arranged and designed reasonably, so that the relative connection between the blade body 31 and the cutter head body 1 is more stable.

[0064] The shape of the second connecting part 322 can be adjusted according to specific use requirements. Generally, the second connecting part 322 can be designed as a rectangle, a circle or other shapes with strong adaptability, such as a structure with a groove, and the blade body 31 can be connected to it by insertion or clamping, thereby forming a stable connection.

[0065] It should be noted that the second connecting part 322 can not only be connected by mechanical insertion, but also can be connected by various ways such as buckle structure, riveting, etc. For example, in some special application scenarios, it may be necessary to use a quick locking device, using a buckle or elastic structure to facilitate quick disassembly and maintenance. Through these ways, the second connecting part 322 can provide stable and efficient connection force for the blade body 31, while ensuring its stability in long-term use.

[0066] Further, in some embodiments, the second connecting portion 322 is provided with a second assembly hole 3220 extending from one side of the fitting part 32 away from the cutter body 1 to the other side, forming a partially or fully penetrating hole structure. The design of the second assembly hole 3220 not only facilitates the connection between the fitting part 32 and the blade body 31, but also provides a fixed fulcrum for the blade body 31, ensuring the stable relative position of the blade assembly 3 during high-speed operation.

[0067] To achieve a stable connection between the fitting part 32 and the blade body 31, the blade body 31 is provided with a mounting hole 311 corresponding to the second assembly hole 3220 to ensure that they can be stably connected by the fixing part 5.

[0068] Under the action of the fixing part 5, a reliable crimp connection is formed between the blade body 31 and the fitting part 32. The crimp structure not only ensures the close combination between the blade and the fitting part 32, but also enhances the stability of the overall structure. Through reasonable crimping force, the relative movement between the blade body 31 and the fitting part 32 can be effectively reduced, avoiding the loosening, deviation or falling off of the blade under the action of high-speed rotation or external force.

[0069] The fixing part 5 is usually a threaded connecting part such as a bolt, which successively passes through the mounting hole 311 and the second assembly hole 3220 (both holes are provided with corresponding threaded structures), thereby fixing the blade body 31 and the fitting part 32 together. As a common fixing part 5, the bolt has strong locking ability. By tightening the bolt, a strong connection between the blade body 31 and the fitting part 32 can be formed, ensuring that they do not displace during operation. At the same time, the use of the bolt facilitates disassembly and maintenance, and users can replace or adjust the blade assembly 3 as needed. In addition, the threaded connection structure has good adjustability, and users can adjust the fastening degree of the connection according to actual conditions, thereby adapting to different working environments or operation requirements.

[0070] It can be understood that through the arrangement in this embodiment, the problem of blade loosening caused by external impact or improper operation can be effectively prevented. Through the threaded structure and the crimping action, the fixing part 5 provides stronger anti-vibration ability and reliability, enabling the blade assembly 3 to operate stably for a long time under complex working conditions.

[0071] Based on the above embodiments, please refer to the accompanying drawings Figure 2 and Figure 4 The second connecting portion 322 also includes a connecting protrusion 3221, which is arranged on the side of the fitting part 32 away from the cutter body 1 and corresponds to the mounting hole 311 on the blade body 31, and the second assembly hole 3220 on the fitting part 32 penetrates the connecting protrusion 3221.

[0072] Specifically, when the blade body 31 is connected to the matching piece 32, the corresponding sleeve connection is formed between the mounting hole 311 and the butt protrusion 3221, without the need for complex alignment operations, so that the blade body 31 can be quickly and accurately combined with the matching piece 32, saving installation time and simplifying the operation process. On the other hand, it can also effectively prevent the position deviation of the blade assembly 3 during use, fix the relative position of the blade body 31 and the matching piece 32, and avoid possible installation errors.

[0073] Moreover, through the arrangement in the present application, the blade body 31 can be effectively prevented from moving during high-speed rotation. Especially when the mower is working, the blade will bear a large centrifugal force and external impact during rotation. If there is no accurate positioning, the blade may displace horizontally or vertically, affecting the cutting efficiency. Through the sleeve connection design of the butt protrusion 3221 and the mounting hole 311, combined with the crimping design in the above content, the occurrence of such a situation can be greatly reduced, ensuring that the blade remains stable during operation and avoiding unnecessary vibration of the blade.

[0074] In one embodiment, the outer contour of the butt protrusion 3221 is designed as a non-circular contour, which is matched with the contour shape of the mounting hole 311 on the blade body 31. The design of the non-circular contour not only enhances the connection stability between the blade body 31 and the matching piece 32, but also effectively prevents the blade from rotating relative to the matching piece 32 under the action of high-speed rotation or external force, ensuring that the blade always maintains the correct working position.

[0075] The non-circular contour of the butt protrusion 3221 can achieve more accurate positioning and fixation when cooperating with the mounting hole 311. Due to the design of the non-circular structure, the connection between the blade body 31 and the matching piece 32 is no longer a simple axial butt joint, but a more stable connection through the matching of the contour shape. This matching design provides a more secure locking effect, avoiding the rotation or sliding phenomenon caused by the possible small gap between the traditional circular hole and the circular protrusion.

[0076] In addition, the matching mode of the non-circular butt protrusion 3221 and the mounting hole 311 can significantly increase the contact area between the blade body 31 and the matching piece 32, thereby enhancing the locking force and reducing the possibility of displacement or vibration of the blade during operation, thereby improving the working stability and safety of the blade assembly 3.

[0077] Specifically, the non-circular contour design can adopt various shapes, such as rectangular, square, hexagonal, or other irregular shapes.

[0078] In one embodiment, according to another aspect of the present application, the present application further provides a mower, which comprises the cutting disc assembly of any of the above embodiments, including the main cutting disc body 1, the rotating member 2, the blade assembly 3 and the matching member 32 and other main components. The main cutting disc body 1 is connected with a power source (such as a motor or an engine) through a driving connection device, thereby driving the main cutting disc body 1 to rotate. The blade assembly 3 is connected with the main cutting disc body 1 through the matching member 32, and is driven by the rotating member 2 to rotate synchronously with the rotating member 2 during the operation of the mower, thereby realizing the cutting work of the lawn.

[0079] The blade body 31 is connected with the main cutting disc body 1 through the matching member 32, and is driven by the rotating member 2 to rotate synchronously with the blade assembly 3. The blade assembly 3 can stably rotate under the action of the centrifugal force, reduces the gap between the cutting disc and the blade, makes it difficult for the grass clippings to enter, thereby ensuring the efficient operation in the cutting process, and can effectively avoid the problem of grass clippings accumulation caused by the traditional bolt connection.

[0080] It should be noted that the above embodiments can be freely combined as needed. The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can also be made, which should be considered as the protection scope of the present application.

Claims

1. A cutterhead assembly characterized by, A mower comprises: a cutter head body provided with at least one mounting cavity; a rotating member arranged in the mounting cavity and capable of rotating in the mounting cavity under external force; a blade assembly oppositely connected with the cutter head body and covering the opening of the mounting cavity, the blade assembly having a first connecting portion matched with the rotating member so that the blade assembly can rotate synchronously with the rotating member to perform the mowing work.

2. The cutter head assembly according to claim 1, wherein: the blade assembly comprises a blade body and a matching member connected with the cutter head body to close the opening of the mounting cavity by the matching member, and the first connecting portion is arranged on one side end surface of the matching member; the blade body is fixed on the other side end surface of the matching member and rotates synchronously with the matching member to cut weeds.

3. The cutter head assembly according to claim 2, wherein: the rotating member is in the form of a ring having a first assembly hole passing through the center thereof; the first connecting portion is in the form of a rotating protrusion inserted into the first assembly hole to form the matched connection between the rotating member and the first connecting portion.

4. The cutter head assembly according to claim 3, wherein: the rotating member is a rotating bearing comprising an inner ring, an outer ring and a plurality of rolling bodies, the outer ring is fixed in the mounting cavity, the rolling bodies are located between the inner ring and the outer ring to realize the rotation of the inner ring relative to the outer ring, and the rotating protrusion is matched and connected with the inner ring so that the matching member rotates synchronously when the inner ring rotates.

5. The cutter head assembly according to claim 2, wherein: a side surface of the matching member away from the cutter head body is a first contact surface, a side surface of the blade body facing the cutter head body is a second contact surface, the first contact surface and the second contact surface are both flat surfaces and abut against each other.

6. The cutter head assembly according to any one of claims 2-5, wherein: the matching member has a second connecting portion arranged on the two sides thereof away from each other, and the second connecting portion is used for the relative fixed connection between the matching member and the blade body.

7. The cutter head assembly according to claim 6, wherein: the second connecting portion comprises a second assembly hole extending from one side of the matching member away from the cutter head body to the other side, thereby forming a partially or wholly penetrating hole structure on the matching member; the blade body is provided with a mounting hole, and the cutter head assembly further comprises a fixing member passing through the mounting hole and the second assembly hole from one side of the blade body to relatively fix the blade body and the matching member.

8. The cutter head assembly according to claim 7, wherein: The second connecting part further comprises a connecting protrusion, which is arranged on the side of the fitting part away from the cutter body, and the second assembly hole penetrates the connecting protrusion, so that the mounting hole and the connecting protrusion are in corresponding sleeving arrangement when the cutter body is connected to the fitting part.

9. The cutter head assembly of claim 8, wherein, An outer contour of the connecting protrusion is a non-circular contour, and a contour of the mounting hole is matched with the outer contour of the connecting protrusion to prevent relative rotation of the cutter body relative to the fitting part.

10. A lawnmower characterised in that, The application further provides a cutter head assembly comprising: The cutter head assembly according to any one of claims 1-9.

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