Cutting tool and cutting equipment

Abstract

The utility model relates to the technical field of intelligent forage cutting, in particular to a cutting tool and cutting equipment. The cutting tool comprises a supporting part and a cutting assembly arranged at one end of the supporting part, the cutting assembly comprises a fixing part and two blades, the fixing part is connected with the supporting part, the two blades are detachably connected with the fixing part, the blades can rotate relative to the supporting part, each blade comprises a cutting part, and the cutting part is detachably connected with the fixing part. The blade close to the supporting piece is defined as a first blade, the other blade is defined as a second blade, and the diameter of a circle formed when the second blade rotates is smaller than that of a circle formed when the first blade rotates. The cutting tool is provided with the two blades, the blades are detachably installed on the fixing piece, an operator can conveniently replace different blades to conduct cutting treatment according to the specific terrain, environment and other characteristics, and in addition, by arranging the two blades, the purpose of efficient and rapid cutting can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent forage cutting, in particular to a cutting tool and a cutting device. Background Art

[0002] Forage cutting is one of the most basic operations in lawn trimming and crop harvesting. At present, in hilly areas, due to problems such as many slopes, small and scattered plots, large elevation differences between fields, and large spans of topography and landforms, the harvesting of ryegrass mainly depends on manual labor, which has a large labor intensity and low work efficiency. Some similar agricultural implements cannot well reduce the labor intensity of workers, and they are also single-functional, bulky, and not suitable for the usage requirements of hilly mountainous areas.

[0003] Among them, the blade of a lawn mower, as a functional component, its structural design greatly affects the cutting performance of the lawn mower. Especially for some complex terrains, the design of the blade determines whether the lawn mower is suitable for that terrain. For current lawn mowing machines, most of them use a single blade, which is not conducive to use in more complex terrains. Summary of the Utility Model

[0004] In order to solve the technical problem that a single blade cannot be applicable to various complex terrains, the utility model provides a cutting tool and a cutting device.

[0005] The solution of the utility model to solve the technical problem is to provide a cutting tool, which includes a support member and a cutting assembly arranged at one end of the support member. The cutting assembly includes a fixing member and two blades. The fixing member is connected to the support member, the two blades are detachably connected to the fixing member, and the blades can rotate relative to the support member. The blade includes a cutting part. The blade close to the support member is defined as the first blade, and the other blade is the second blade. The diameter of the circle formed when the second blade rotates is smaller than the diameter of the circle formed when the first blade rotates.

[0006] Preferably, the blade further includes a mounting part and at least two cutting parts. The cutting part is connected to or integrally formed with the mounting part, and the mounting part is used for connecting to the fixing member.

[0007] Preferably, the cutting part of at least one of the blades is bent relative to the mounting part.

[0008] Preferably, the bending directions of two adjacent cutting parts on the blade are opposite.

[0009] Preferably, the rotation directions of the first blade and the second blade are the same or opposite.

[0010] Preferably, the fixing member is movably connected to the support member, and the fixing member can rotate relative to the support member.

[0011] Preferably, a driving device is provided inside the support member. The fixing member includes a central shaft, the central shaft is connected to the driving device, a mounting hole is formed in the center of the blade, the central shaft passes through the mounting hole, and a connecting member is provided on the side of the second blade away from the support member and is detachably connected to the central shaft.

[0012] Preferably, a groove is formed between the cutting portion and the mounting portion of the second blade, and the connecting member is located in the groove.

[0013] Preferably, the cutting portion of the second blade is arranged at an interval corresponding to the cutting portion of the first blade.

[0014] Another solution for the present invention to solve the technical problem is to provide a cutting device, including a main body frame and a cutting tool as described above mounted on the main body frame.

[0015] Compared with the prior art, the cutting tool and the cutting device provided by the present invention have the following advantages:

[0016] In the embodiment provided by the present invention, two blades are provided on the cutting tool, and the blades are detachably mounted on the fixing member, which is convenient for the operator to replace different blades for cutting according to specific terrain and environmental characteristics. In addition, by providing two blades, the purpose of high-efficiency and fast cutting can be achieved. In addition, since the diameter of the second blade during cutting rotation is smaller, especially for the terrain with uneven ground, the second blade can directly enter the sunken ground for cutting, greatly improving the use environment limitation of the cutting device and enabling it to be used in complex terrains. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a cutting tool provided by the first embodiment of the present invention.

[0019] Figure 2 It is an exploded structural schematic diagram of a cutting tool provided by the first embodiment of the present invention.

[0020] Figure 3 It is a structural schematic diagram of a cutting device provided by the second embodiment of the present invention.

[0021] Explanation of the Reference Numerals in the Drawings

[0022] 1. Cutting tool; 2. Main body frame; 3. Cutting equipment;

[0023] 10. Support member; 11. Cutting assembly;

[0024] 110. Fixing member; 111. First blade; 112. Second blade; 113. Cutting portion; 114. Mounting portion; 115. Through hole; 116. Groove;

[0025] 1101. Central axis; 1102. Connecting member. Detailed implementation manner

[0026] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and implementation examples. It should be understood that the specific implementation examples described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] It should be noted that the terms "first" and "second" in the description and claims of the present utility model are used to distinguish different objects and are not used to describe a specific order.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0029] In the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present utility model and its embodiments and are not used to limit that the indicated device, element or component must have a specific orientation or be constructed and operated in a specific orientation.

[0030] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to the specific circumstances.

[0031] In addition, the terms "installed", "set up", "provided with", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0032] Please refer to Figure 1 - Figure 2 , a cutting tool 1 provided by the first embodiment of the present utility model includes a support member 10 and a cutting assembly 11 provided at one end of the support member 10. The cutting assembly 11 includes a fixing member 110 and two blades. The fixing member 110 is connected to the support member 10, the two blades are detachably connected to the fixing member 110, and the blades can rotate relative to the support member 10. The blades include a cutting portion 113. The blade close to the support member 10 is defined as the first blade 111, and the other blade is the second blade 112. The diameter of the circle formed when the second blade 112 rotates is smaller than the diameter of the circle formed when the first blade 111 rotates.

[0033] It can be understood that the support member 10 is used to install the cutting tool 1, and the cutting tool 1 can be installed on, including but not limited to, a push-type cutter for weeding, a ride-on cutter, and other crop harvesters, etc.

[0034] There are two blades provided on the cutting tool 1. The blades are detachably installed on the fixing member 110, which is convenient for the operator to replace different blades for cutting according to specific terrain and environmental characteristics. In addition, by providing two blades, the purpose of high-efficiency and fast cutting can be achieved. In addition, since the diameter of the second blade 112 during cutting rotation is smaller, especially for terrains with uneven ground, the second blade 112 can directly enter the sunken ground for cutting, greatly improving the usage environment limitations of the cutting device 3 and enabling it to be used in complex terrains.

[0035] In addition, since it is set as two blades, when the blades rotate, each layer is cut separately. The first blade 111 cuts off the upper layer, and the second blade 112 cuts off the lower layer, directly cutting the grass into multiple sections. For grass used as feed, the subsequent steps of forage crushing can be directly reduced, and the harvesting efficiency is higher.

[0036] Furthermore, the blade further includes a mounting portion 114 and at least two cutting portions 113. The cutting portion 113 is connected to or integrally formed with the mounting portion 114, and the mounting portion 114 is used to connect to the fixing member 110.

[0037] Understandably, the cutting part 113 can be understood as a part extending outward from the mounting part 114. The blade is not a traditional disc type. The gap between adjacent cutting parts 113 is conducive to the entry of forage, achieving the purpose of rapid cutting. Considering that the blade will wear after long-term use, therefore, the cutting part 113 can also be selected as a separate part and installed on the mounting part 114, so as to achieve the purpose of only replacing the cutting part 113 when the blade is damaged, saving costs.

[0038] Further, the cutting part 113 of at least one of the blades is bent relative to the mounting part 114.

[0039] Understandably, the bent blade can control the falling direction of the cut forage. During actual use, when the bent blade rotates, it will form an inclined plane with the mounting part 114, thereby guiding the cut forage to fall in the direction of the inclined plane, facilitating collection.

[0040] According to the specific actual situation, the cutting part 113 of any blade can be selected to be bent, or all can be bent, or neither of the two blades can be bent.

[0041] As an optional implementation manner, the bending directions of two adjacent cutting parts 113 on the blade are opposite.

[0042] Understandably, multiple cutting parts 113 can be simultaneously provided on the blade, including but not limited to 2, 3, 4, 6, 8, etc., without specific limitation. When the blade has multiple cutting parts 113, the bending directions of two adjacent cutting parts 113 can be set to be opposite, so that when the blade rotates, at least two cutting circles can be generated for cutting, thereby realizing the multi-segment shredding of forage. In a specific embodiment, the bending angle is not specifically limited.

[0043] Further, the rotation directions of the first blade 111 and the second blade 112 are the same or opposite.

[0044] As an optional implementation manner, each blade can be set to rotate independently; specifically, the different rotation directions of the blades can be realized through the meshing of gears, and the specific setting method can be realized by using the existing technology and will not be elaborated here.

[0045] Among them, for grass with better toughness, using two blades with different rotation directions can cut more effectively.

[0046] In a specific embodiment, the fixing member 110 is movably connected to the support member 10, and the fixing member 110 can rotate relative to the support member 10.

[0047] Understandably, if the fixing member 110 is set to be rotatable, the blade will directly follow the rotation of the fixing member 110, and the fixing member 110 mainly functions to fix the blade and drive the blade to rotate; in other embodiments, the fixing member 110 can also be fixed to the support member 10, and the blade is movably connected to the fixing member 110 to achieve the rotation of only the blade.

[0048] Furthermore, a driving device is provided inside the support member 10. The fixing member 110 includes a central shaft 1101, the central shaft 1101 is connected to the driving device, a mounting hole is formed in the center of the blade, the central shaft 1101 passes through the mounting hole, and a connecting member 1102 is provided on the side of the second blade 112 away from the support member 10 and is detachably connected to the central shaft 1101.

[0049] The driving device can be an electric motor or the like for driving the blade to rotate. After the connecting member 1102 is connected to the central shaft 1101, the blade is fixed to the fixing member 110. In a specific embodiment, a threaded hole can be provided at the end of the central shaft 1101, and the connecting member 1102 is a bolt. In addition, when disassembling and replacing the blade, only the connecting member 1102 needs to be removed, and then the two parts of the fixing member 110 can be disassembled to replace the blade.

[0050] Furthermore, a groove 116 is formed between the cutting portion 113 and the mounting portion 114 of the second blade 112, and the connecting member 1102 is located in the groove 116.

[0051] Understandably, the second blade 112 is provided with the groove 116 for accommodating the connecting member 1102. Thus, during use, the second blade 112 can directly cut the roots of the grass, and the situation where the connecting member 1102 abuts against the ground and the roots cannot be cut will not occur.

[0052] As an alternative embodiment, the cutting portion 113 of the second blade 112 is arranged at an interval corresponding to the cutting portion 113 of the first blade 111.

[0053] Please refer to Figure 3 , the second embodiment of the present utility model further provides a cutting device 3, including a main body and a cutting tool 1 as described above mounted on the main body.

[0054] This cutting device 3 has the same beneficial effects as the cutting tool 1 described in the above first embodiment, and will not be elaborated here.

[0055] In summary, compared with the prior art, a cutting tool 1 and a cutting device 3 provided by the present utility model have the following advantages:

[0056] In the embodiment provided by the present utility model, two blades are provided on the cutting tool 1, and the blades are detachably mounted on the fixing member 110, which is convenient for the operator to replace different blades for cutting according to specific terrain and environmental characteristics. In addition, by providing two blades, the purpose of high-efficiency and rapid cutting can be achieved. In addition, the blade close to the support member 10 is defined as the first blade 111, and the other blade is the second blade 112. The diameter of the circle formed when the second blade 112 rotates is smaller than the diameter of the circle formed when the first blade 111 rotates; since the diameter of the second blade 112 during cutting rotation is smaller, especially for terrains with uneven ground, the second blade 112 can directly enter the sunken ground for cutting, greatly improving the use environment limitation of the cutting device 3 and enabling it to be used in complex terrains.

[0057] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting tool, characterized in that: It includes a support and a cutting assembly arranged at one end of the support, the cutting assembly includes a fixing member and two blades, the fixing member is connected to the support, the two blades are detachably connected to the fixing member, and the blades can rotate relative to the support, the blades include a cutting portion, the blade close to the support is defined as a first blade, and the other blade is defined as a second blade, and the diameter of a circle formed by the second blade when rotating is smaller than the diameter of a circle formed by the first blade when rotating.

2. A cutting tool according to claim 1, characterized in that: The blade further comprises a mounting portion and at least two cutting portions, wherein the cutting portion is connected to or integrally formed with the mounting portion, and the mounting portion is used to be connected to the fixing member.

3. A cutting tool according to claim 2, characterized in that: The cutting portion of at least one of the blades is bent relative to the mounting portion.

4. A cutting tool according to claim 3, characterized in that: The bending directions of two adjacent cutting portions on the blade are opposite.

5. A cutting tool according to claim 1, characterized in that: The first blade and the second blade rotate in the same direction or in opposite directions.

6. A cutting tool according to claim 1, characterized in that: The fixing member is movably connected to the supporting member, and the fixing member can rotate relative to the supporting member.

7. A cutting tool according to claim 3, characterized in that: A driving device is provided inside the support member, and the fixing member includes a central axis, which is connected to the driving device. A mounting hole is opened at the center of the blade, and the central axis passes through the mounting hole. A connecting member is provided on the side of the second blade away from the support member and is detachably connected to the central axis.

8. A cutting tool according to claim 7, characterized in that: A groove is formed between the cutting portion of the second blade and the mounting portion, and the connecting member is located in the groove.

9. A cutting tool according to claim 1, characterized in that: The cutting portions of the second blade are arranged corresponding to the intervals between the cutting portions of the first blade.

10. A cutting device, characterized in that: The invention comprises a main frame and a cutting tool as claimed in any one of claims 1 to 9 installed on the main frame.

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