Mini-tiller knife roll convenient to disassemble and replace

Abstract

The utility model relates to the technical field of agricultural mini-tiller components, and provides a mini-tiller knife roll convenient to disassemble and replace, which comprises a connecting shaft, a hexagonal shaft, a knife holder square plate, a left rotary blade, a right rotary blade, a cylindrical pin, a nut of the cylindrical pin and other fastening bolts and nuts. The whole mini-tiller knife roll adopts a modular design convenient to disassemble and assemble, is ingenious in conception, can adapt to various use environments, and is convenient for a mini-tiller user to disassemble and maintain while giving consideration to the excellent tillage effect of a common mini-tiller knife roll; the cutter group or the cutter can be conveniently detached to clean weeds after long-time work in practical application, a spare part can be quickly replaced when a certain part of the cutter roller of the mini-tiller is damaged, and the cutter roller is convenient to assemble, so that the tilling efficiency is improved, the maintenance operation is convenient, and meanwhile, a safer use environment is brought to a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agricultural micro -tiller parts, concretely is a micro -tiller cutter roll convenient to dismount and replace. BACKGROUND

[0002] The micro -tiller is a kind of small agricultural land equipment, and the micro -tiller generally adopts diesel engine or gasoline engine driving, and the overall structure is simple, has the advantages such as small size, low operation difficulty, low price and high reliability, the working efficiency is higher compared with traditional ox plough, and is little influenced by geographical position, so it is widely applied in the large-scale machinery inaccessible area such as mountainous area and hilly area in rural areas of China, and has gradually replaced ox plough and become the main tillage tool in rural areas.

[0003] The micro -tiller cutter roll currently used is generally connected with the output shaft of the micro -tiller, and power is transmitted through the connection of the output shaft two ends with the cutter roll, to realize the operation of ploughing, and in the existing micro -tiller cutter roll structure, the scheme that the cutter group or blade of the micro -tiller is connected with the cutter roll shaft generally adopts welding or is directly integrated with the cutter roll shaft, and there is generally the problem of difficult dismounting and inconvenient replacement, and the whole cutter roll is the working part of the micro -tiller, and the use intensity is higher compared with other parts, and by consulting the data, most faults of the micro -tiller are related to the cutter roll part, and the connection scheme of the cutter group and the cutter roll shaft of the traditional cutter roll is generally difficult to dismount and repair when encountering faults, and sometimes even the whole cutter roll mechanism needs to be replaced.In addition, the safety problem needs to be considered in the use of the micro -tiller, and the accidents of the micro -tiller hurting people are also related to the grass entangled by the blade or cutter roll, and timely cleaning of the grass entangled by the cutter roll and regular maintenance of the micro -tiller cutter roll are particularly important, and the present application provides a kind of micro -tiller cutter roll convenient to dismount and replace. UTILITY MODEL CONTENTS

[0004] For the above technical problems of the existing micro -tiller cutter roll, the utility model provides a kind of micro -tiller cutter roll structure convenient to dismount and replace, and the connection of each group of cutters and cutter roll shaft is reinforced, effectively solve the problems existing in the above background.

[0005] To solve the above problems, the utility model provides the following scheme: a kind of micro -tiller cutter roll convenient to dismount and replace includes coupling shaft, the cylindrical one end of coupling shaft is connected with the output shaft of micro -tiller, the hexagonal one side of coupling shaft is connected with hexagonal shaft, and is connected by cylindrical pin, each group of cutter seat square plate is connected on hexagonal shaft, and two kinds of cutters are fixed on cutter seat square plate.

[0006] The hexagonal shaft is installed at both ends of the connecting shaft, the layout of the cutter groups is performed through the installation positioning holes on the hexagonal shaft, the same direction cutting direction cutters are installed on each cutter group square plate, so that the cutters on the hexagonal shaft can complete the soil cutting action while the connecting shaft of the cutter roller rotates with the output shaft of the micro tiller, thereby realizing the plowing operation, and when the cutter roller needs to be disassembled and cleaned or replaced, the fastening bolts can be disassembled from the cutter or cutter group connection position, so that the components needing maintenance can be conveniently and quickly disassembled and assembled, the problem that the entire cutter group or even the entire cutter roller needs to be replaced due to faults or weeds is avoided, and the convenient disassembly and assembly strategy also makes regular maintenance simple and fast, thereby improving the maintenance efficiency of the micro tiller and improving the safety performance of the cutter roller of the micro tiller.

[0007] Further, the locking member includes a bolt and a nut and a cylindrical pin, the bolt and the nut are used to connect the blade and the cutter seat square plate, and the cylindrical pin penetrates the openings of the connecting shaft and the hexagonal shaft after the connecting shaft is sleeved on the hexagonal shaft and is fastened at both ends by the nut.

[0008] Further, the connecting shaft has two connecting shapes of a circular shape and a hexagonal shape at both ends, the circular end is connected to the output shaft of the micro tiller, the hexagonal end is connected to the hexagonal shaft, and the connecting shaft is locked by the stud and the nut.

[0009] Further, the cutter seat square plates are distributed on a plurality of hexagonal shafts, and the first, second and third cutter seat square plates are distributed at both ends of the cutter roller to the connecting shaft and are sequentially arranged, each cutter seat square plate is distributed at an interval of 60 degrees, is sequentially arranged in the axial direction with the positioning holes on the hexagonal shaft as the reference, and is connected by the bolt after correct sleeving.

[0010] Further, the first cutter seat square plate is installed at one end of the hexagonal shaft with a threaded hole, the second cutter seat square plate and the third cutter seat square plate are installed in pairs, and the bolt is used to lock the openings of the cutter seat square plate and the hexagonal shaft.

[0011] Further, the three groups of cutter seat square plates are uniformly distributed with four openings, a group of right-handed or left-handed cutters is installed at the first cutter seat square plate, the cutting directions are consistent, the cutters are distributed at an angle of 180 degrees on the first cutter seat square plate, the cutter connecting end semicircular notch is opposite to the sleeve hole of the cutter seat square plate and the hexagonal shaft, two groups of cutters are installed on the second cutter seat square plate and the third cutter seat square plate of the hexagonal shaft, the cutters are installed on both sides of the cutter seat square plate, the cutters on each side are distributed at an angle of 180 degrees, each group of cutters is also distributed at an angle of 180 degrees, that is, the cutters on both sides of the cutter seat square plate are distributed in a cross shape, the cutting directions of the cutters on both sides of the second cutter seat square plate and the third cutter seat square plate are the same, and the cutters are symmetrically installed on a group of hexagonal shafts, and finally the bolt and the nut are used to lock the openings of the cutter seat square plates and the cutters to fix the cutters.

[0012] Compared with the existing micro tiller blade roller technology, the micro tiller blade roller has the advantages that:

[0013] 1、The utility model discloses a separation type design of the cutter holder, blade and blade roller shaft welded or formed together, which can conveniently and quickly disassemble, replace or clean the cutter, cutter holder square plate, cutter group and hexagonal shaft when the micro tiller blade roller encounters a fault, and the utility model has high maintenance efficiency, simple disassembly and installation, high soil cutting efficiency of the arranged blade, good cutting depth, and improved use and maintenance efficiency of the micro tiller.

[0014] 2、The utility model is favorable to the daily maintenance of the micro tiller blade roller part and timely cleaning when the grass is entangled during use, and the cutter holder square plate is extended and sleeved on the outside of the hexagonal shaft, finally locked by the bolts at both ends, so that the whole cutter group is effectively fixed in the axial and radial directions, the reliability during the work of the micro tiller is improved, the utility model has strong practicability, and the life safety of the user is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the micro tiller blade roller of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 It is a second cutter holder square plate and cutter connection schematic view of the utility model;

[0018] Figure 4 It is a hexagonal shaft and coupling shaft connection schematic view of the utility model;

[0019] In the drawings, the component list represented by each sign is as follows:

[0020] 1, coupling shaft; 2, hexagonal shaft; 3, cylindrical pin and its nut; 4, first cutter holder square plate; 5, second cutter holder square plate; 6, third cutter holder square plate; 7, cutter holder square plate fixing bolt; 8, right-hand blade; 9, left-hand blade; 10, cutter fixing bolt; 11, cutter fixing nut. DETAILED DESCRIPTION

[0021] In order to better understand the utility model, the content of the utility model will be further clearly described in combination with the embodiments below, but the protection content of the utility model is not limited to the following embodiments only. In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details.

[0022] It should be noted that in the description of the utility model, the position relationship described by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" only indicates the orientation or position relationship shown in the drawings of the present embodiment, and its function is only to facilitate the description of the utility model and simplify the description, and it does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] As shown in Figure 1 The utility model provides a kind of micro tiller cutter roll of easy disassembly and replacement, including coupling shaft 1, the hexagonal direction of coupling shaft 1 is coupled with hexagonal shaft 2, coupling shaft 1 and hexagonal shaft 2 are equipped with the pin hole for axial fixation and are fixedly connected with cylindrical pin and its nut 3, two groups of first cutter seat square plate 4 are installed on the both ends hexagonal shaft 2 of entire cutter roll, two groups of second cutter seat square plate 5 and two groups of third cutter seat square plate 6 are installed in the position of hexagonal shaft 2 close to the connecting end of coupling shaft 1, after installing the above-mentioned three groups of cutter seat square plate, the above-mentioned three groups of cutter seat square plate and hexagonal shaft 2 are fixed using cutter seat square plate fixing bolt 7, a group of right-hand tiller 8 or left-hand tiller 9 is installed on first cutter seat square plate 4, two groups of opposite installation cutters are installed on second cutter seat square plate 5 and third cutter seat square plate 6 in cross shape, same side cutter selects same type and different side different, i.e., right-hand tiller 8 or left-hand tiller 9 is selected on the same side of second, third cutter seat square plate, and left-hand tiller 9 or right-hand tiller 8 is selected on the different side, but it needs to be noted that the cutting direction of the cutter installed in the embodiment is consistent, cutter fastening bolt 10 and cutter fastening nut 11 are used to lock cutter after installing the above-mentioned cutter, when micro tiller output shaft drives coupling shaft 1 to rotate, coupling shaft 1 will drive hexagonal shaft 2 to rotate, and then drive three groups of cutter seat square plate and cutter installed on cutter seat square plate to complete the action of cutting soil, so as to realize the purpose of ploughing, when grass entanglement or cutter damage occurs during micro tiller working process, different disassembly modes can be selected quickly, such as from cutter connection, each group of cutter seat square plate connection or coupling shaft 1 and hexagonal shaft 2, to realize the operation of disassembly, repair and replacement of spare parts, improve the maintenance efficiency of micro tiller and the obstacle removal ability when fault occurs, and then improve the use efficiency of micro tiller cutter roll.

[0024] As shown in Figure 2 For the left end of the cutter roll of the embodiment, i.e. Figure 2 The first cutter seat square plate 4 at the left end of the embodiment, a pair of right-hand tillers 8 is connected on the first cutter seat square plate 4 in the same direction, and is distributed at 180 °, for Figure 2 The first cutter seat square plate at the right end of the embodiment, a pair of left-hand tillers 9 is connected on the first cutter seat square plate 4 in the same direction, at second cutter seat square plate 5 and third cutter seat square plate 6, i.e. Figure 2The middle four groups of cutter seat square plates are cross-shaped and each cutter seat square plate is provided with two groups of cutters Figure 2 The second cutter seat square plate 5 is taken as an example, a group of right-handed cutters 8 is installed on the left side of the second cutter seat square plate 5 and is distributed at 180°, a group of left-handed cutters 9 is installed on the right side of the second cutter seat square plate 5 and is distributed at 180°, and the two groups of cutters on the two sides of the cutter seat square plate are cross-shaped, the above-mentioned installation mode can keep the best cutting intercept and the working depth of the cutter roll in the working process, and thus the working efficiency is improved.

[0025] As shown in Figure 3 The cutters on the second cutter seat square plate 5 are taken as an example, a pair of right-handed cutters 8 and a pair of left-handed cutters 9 are cross-shaped and are installed on the second cutter seat square plate 5, and the four reserved hole positions are fixed and locked by the cutter fixing bolt 10 and the cutter fixing nut 11.

[0026] As shown in Figure 4 The connecting mode of the connecting shaft 1 and the hexagonal shaft 2 is as follows: the two ends of the connecting shaft 1 are designed as a circle and a hexagon, the circular end is connected with the output shaft of the specific micro-cultivator and is mainly used for transmitting the rotating motion power of the micro-cultivator cutter roll, the hexagonal end is installed according to the same hole direction of the hexagonal shaft 2, the connecting hexagonal shaft can be fixed in the circumferential position, the whole connection is fixed by the cylindrical pin and the nut 3 after the hole position is installed in place, and the axial direction of the cutter roll is ensured.

[0027] The above-mentioned is only the preferred embodiment of the utility model and does not limit the utility model in any form; the ordinary technical personnel in the industry can smoothly implement the utility model according to the above-mentioned and the drawings.

Claims

1. A micro tiller blade roller that is easy to disassemble and replace, characterized in that: The utility model discloses a coupling shaft (1) one end is round one end is hexagonal, the hexagonal end of coupling shaft (1) connects hexagonal shaft (2), and the hexagonal shaft (2) has the opening for connecting cylindrical pin and nut (3) with the opening of coupling shaft (1) is connected with cylindrical pin and nut (3), and the hexagonal shaft (2) installs first cutter seat square board (4) in turn, second cutter seat square board (5), third cutter seat square board (6), the first cutter seat square board (4), second cutter seat square board (5) and third cutter seat square board (6) are provided with the opening respectively and are in turn 60 ° circumferential distribution, and are connected with hexagonal shaft (2) with bolt (7), a set of right-hand rotary plough (8) and left-hand rotary plough (9) are installed on the first cutter seat square board (4) respectively, a set of right-hand rotary plough (8) and left-hand rotary plough (9) are installed on the second cutter seat square board (5) and third cutter seat square board (6) respectively and are in cross distribution, and the first cutter seat square board (4), second cutter seat square board (5) and third cutter seat square board (6) are connected fastening with tool fixed bolt (10) and tool fixed nut (11).

2. The micro tiller cutter roller of claim 1, wherein: The coupling shaft (1), hexagonal shaft (2), cylindrical pin and its nut (3), first cutter seat square board (4), second cutter seat square board (5) and third cutter seat square board (6) are provided with two respectively.

3. The micro tiller cutter roller of claim 1, wherein: Right-hand rotary plough (8) and left-hand rotary plough (9) are distributed multiple on the first cutter seat square board (4), second cutter seat square board (5) and third cutter seat square board (6) respectively, and the first cutter seat square board (4), second cutter seat square board (5) and third cutter seat square board (6) are installed symmetrically on the both sides of hexagonal shaft (2).

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