Knife rest structure with blade convenient to replace

Abstract

The utility model discloses a knife rest structure convenient for replacing blades. The knife rest structure is characterized in that a plurality of threaded holes are formed in a main shaft; a main shaft hole is formed in the center of each fixing plate, a plurality of auxiliary shaft holes are uniformly formed in the periphery of each fixing plate, the fixing plates are slidably mounted on the main shaft through the main shaft holes and fixed through bolts and threaded holes, and at least two sections of mounting cavities are formed among the fixing plates in the axial direction of the main shaft; the auxiliary shafts are arranged in parallel and located in the installation cavity, and the two ends of each auxiliary shaft are installed in the auxiliary shaft holes of every two adjacent fixing plates respectively and locked through nuts. And a plurality of flail knives are arranged on the auxiliary shaft. According to the knife rest structure, the auxiliary shaft is arranged in a segmented and staggered mode, the length of the auxiliary shaft is shortened, the connecting and fixing relation between the auxiliary shaft and other components is reduced, when the flail knife needs to be replaced, only the auxiliary shaft where the flail knife is located needs to be found, the auxiliary shaft can be rapidly disassembled and extracted, finally the flail knife is replaced, the knife replacing time is greatly shortened, and operation is convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of weeding tools, in particular to a tool holder structure which is convenient for replacing blades. Background Art

[0002] At present, for domestic weeding equipment, its key weeding components mostly use a knife roller rotor method to achieve cutting, striking, crushing, and scattering. In traditional technical solutions, key cutting tools mostly use hammer grab type, straight knife type, horizontal rotary knife type, L-shaped swing knife type, etc. Among them, the hammer grab type and L-shaped swing knife type tools have more serious weed entanglement and clogging phenomena during operation, while the straight knife type and horizontal rotary knife type have lower cutting and rotating efficiency, and poor adaptability to operations in variable and complex terrain. In addition, some weeding components use a swing knife structure, which can effectively avoid the above problems. During the weeding, crushing, cutting, impacting and other operations, they can adapt to complex and changing working environments. For example, weeding operations with a lot of weeds and shrubs require not only cutting and crushing the orchard weeds and shrubs, but also achieving through-cutting and striking of sudden small obstacles and debris. They have extremely strong balance when operating on irregular terrain.

[0003] For example, in the prior art, there is a Chinese utility model patent with publication number CN215122134U, entitled "A High-Reliability Multi-Axis Blade Fling Structure." The secondary shaft runs through multiple side plates. If a blade at any position on the secondary shaft is damaged, the entire secondary shaft must be pulled out to remove the blade for replacement, and then the new blade must be put back onto the secondary shaft before the secondary shaft and the side plates are fixed together. This operation is very cumbersome and inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a tool holder structure that is convenient for replacing blades, so as to solve the problem that the existing tool holder is very troublesome and inconvenient to operate in replacing cutting tools.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A blade holder structure for facilitating blade replacement, comprising:

[0007] A main shaft, wherein a plurality of threaded holes are provided on the main shaft;

[0008] A fixing plate, wherein the fixing plate has a main shaft hole at its center and multiple secondary shaft holes evenly arranged around its periphery. The multiple fixing plates are slidably mounted on the main shaft through the main shaft holes and fixed by bolts and threaded holes. At least two mounting cavities are formed between the multiple fixing plates along the axial direction of the main shaft.

[0009] A secondary shaft, wherein a plurality of the secondary shafts are arranged in parallel and located in the mounting cavity, and both ends of the secondary shafts are respectively mounted in the secondary shaft holes of two adjacent fixing plates and are locked by nuts;

[0010] A plurality of fling knives are mounted on the secondary shaft.

[0011] A further technical solution is: there are at least three fixing plates.

[0012] A further technical solution is that: along the axial direction of the main shaft, two adjacent secondary shafts are staggered.

[0013] A further technical solution is that the swinging knives on two adjacent secondary shafts in the circumferential direction are staggered.

[0014] A further technical solution is that the cutting trajectories of two adjacent fling knives along the axial direction of the main shaft overlap.

[0015] A further technical solution is: the fling knife includes a blade and a knife cylinder, the blade is rotatably connected to the knife cylinder, and the knife cylinder is slidably installed on the secondary shaft and locked by a bolt.

[0016] A further technical solution is that the blades are arranged in pairs.

[0017] A further technical solution is: the fixing plate is provided in the middle of the secondary shaft.

[0018] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0019] The utility model proposes a tool holder structure which is convenient for replacing blades. The tool holder structure divides the secondary shaft into sections and sets them in staggered positions. The length of the secondary shaft becomes shorter and the connection and fixing relationship with other components is reduced. When the swinging knife needs to be replaced, it is only necessary to find the secondary shaft where the swinging knife is located, and the secondary shaft can be quickly disassembled to extract it, and finally the replacement of the swinging knife is completed, which greatly shortens the time for changing the knife and is convenient and quick to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a tool holder structure that is convenient for replacing blades in the present invention.

[0021] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle tool holder.

[0022] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the middle fling knife.

[0023] Reference numerals: 1, main shaft; 2, fixed plate; 3, secondary shaft; 4, fling knife; 41, blade; 42, knife cylinder. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Example 1:

[0031] This embodiment Figure 1 and Figure 2 As shown, a blade holder structure for facilitating blade replacement includes:

[0032] A main shaft 1 is provided with a plurality of threaded holes;

[0033] A fixing plate 2 is provided with a main shaft hole in the center and multiple secondary shaft holes evenly arranged around the periphery. Multiple fixing plates 2 are slidably mounted on the main shaft 1 through the main shaft holes and fixed by bolts and threaded holes. At least two mounting cavities are formed between the multiple fixing plates 2 along the axial direction of the main shaft 1;

[0034] A plurality of secondary shafts 3 are arranged in parallel and located in the mounting cavity. Both ends of the secondary shaft 3 are respectively installed in the secondary shaft holes of two adjacent fixing plates 2 and are locked by nuts;

[0035] A plurality of fling knives 4 are installed on the secondary shaft 3.

[0036] When the fling knife 4 is damaged, it is only necessary to find the secondary shaft 3 where it is located, disassemble and extract the secondary shaft 3, replace the damaged fling knife 4, and then fasten the secondary shaft 3 to the fixed plate 2. The tool holder structure divides the secondary shaft 3 into sections and staggers the secondary shaft 3. The length of the secondary shaft 3 becomes shorter and the connection and fixing relationship with other components is reduced. When the fling knife 4 needs to be replaced, the secondary shaft 3 can be quickly disassembled and extracted, and finally the replacement of the fling knife 4 is completed, which greatly shortens the tool change time and is convenient and quick to operate.

[0037] Preferably, there are at least three fixing plates 2.

[0038] There are three fixing plates 2 , which can be used to install two sections of the secondary shaft 3 to reduce the length of the secondary shaft 3 .

[0039] Preferably, along the axial direction of the main shaft 1 , two adjacent secondary shafts 3 are staggered.

[0040] The secondary shaft 3 is staggered to facilitate pulling out and installing the secondary shaft 3.

[0041] Preferably, the fling knives 4 on two adjacent secondary shafts 3 along the circumferential direction are staggered.

[0042] The multiple fling knives 4 cooperate with each other to effectively increase the weeding area of the fling knives 4.

[0043] Preferably, the cutting paths of two adjacent fling knives 4 along the axial direction of the main shaft 1 overlap.

[0044] In the axial direction of the main shaft 1, the fling knife 4 reduces the weeding dead angle when working.

[0045] Preferably, if Figure 3 As shown, the fling knife 4 includes a blade 41 and a knife cylinder 42. The blade 41 is rotatably connected to the knife cylinder 42. The knife cylinder 42 is slidably mounted on the secondary shaft 3 and locked by bolts.

[0046] The blade 41 can rotate freely on the knife cylinder 42 to achieve the swinging effect of the knife 4.

[0047] Preferably, the blades 41 are provided in pairs.

[0048] The two blades 41 serve as insurance; even if one of the blades 41 is damaged, the weeding effect can still be achieved.

[0049] Preferably, a fixing plate 2 is provided in the middle of the secondary shaft 3 .

[0050] The fixed plate 2 is located in the middle of the secondary shaft 3 and plays a supporting role.

[0051] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blade holder structure that is convenient for replacing blades, characterized in that: include: A main shaft (1), wherein the main shaft (1) is provided with a plurality of threaded holes; A fixing plate (2), wherein the fixing plate (2) is provided with a main shaft hole at its center and a plurality of secondary shaft holes uniformly provided around its periphery, wherein the plurality of fixing plates (2) are slidably mounted on the main shaft (1) through the main shaft hole and fixed by bolts and threaded holes, and at least two sections of mounting cavities are formed between the plurality of fixing plates (2) along the axial direction of the main shaft (1); A secondary shaft (3), wherein a plurality of the secondary shafts (3) are arranged in parallel and located in the mounting cavity, and both ends of the secondary shaft (3) are respectively mounted in the secondary shaft holes of two adjacent fixing plates (2) and are locked by nuts; A plurality of fling knives (4) are mounted on the secondary shaft (3).

2. The blade holder structure for facilitating blade replacement according to claim 1, characterized in that: There are at least three fixing plates (2).

3. The blade holder structure for facilitating blade replacement according to claim 1, characterized in that: Along the axial direction of the main shaft (1), two adjacent secondary shafts (3) are staggered.

4. The blade holder structure for facilitating blade replacement according to claim 1, characterized in that: The fling knives (4) on two adjacent secondary shafts (3) in the circumferential direction are staggered.

5. The blade holder structure for facilitating blade replacement according to claim 1, characterized in that: The cutting tracks of two adjacent fling knives (4) along the axial direction of the main shaft (1) overlap.

6. The blade holder structure for facilitating blade replacement according to claim 1, characterized in that: The fling knife (4) comprises a blade (41) and a knife barrel (42), wherein the blade (41) is rotatably connected to the knife barrel (42), and the knife barrel (42) is slidably mounted on the secondary shaft (3) and is locked by a bolt.

7. The blade holder structure for facilitating blade replacement according to claim 4, characterized in that: The blades (41) are arranged in pairs.

8. The blade holder structure for facilitating blade replacement according to claim 1, characterized in that: The fixing plate (2) is provided in the middle of the secondary shaft (3).

Images