A rotary cultivator blade replacement mechanism

Abstract

The utility model relates to a kind of rotary cultivator blade replacement mechanism, involve rotary cultivator design technical field, including the rotary shaft being installed on the rotary cultivator ontology, several groups of rotary cultivator blades are installed on rotary shaft by blade mounting mechanism, blade mounting mechanism includes the mounting disc fixedly installed on rotary shaft, several embedded slots for installing rotary cultivator blade are set on mounting disc, and the inside of embedded slot is provided with the limiting platform for limiting nut and screw rod end portion. The application is embedded slot is used, and the limiting platform for limiting nut and screw rod end portion is arranged in the inside of embedded slot, so that the end portion of screw rod and nut can be stored in the inside of embedded slot, the protection of screw rod and nut is realized, and then avoid the end portion of difference screw rod exposed, leading to the problem of impact during rotary cultivation, so as to protect rotary cultivator blade, avoid the problem of the influence of its installation tightness.

Description

Technical Field

[0001] This utility model relates to the field of rotary tiller design technology, specifically a rotary tiller blade replacement mechanism. Background Technology

[0002] Rotary tillers are the first type of driven soil tillage machinery that uses rotating blades as working parts. They are mainly used for turning, breaking up, and leveling soil. Their working principle is to rely on the rotation of the rotary tiller shaft to cut the soil and spread it on the surface, thereby achieving the purpose of tillage.

[0003] For example, in the patent document with application number 201821356607.3, a combined rotary tiller plow that facilitates blade replacement is disclosed, and it is specifically disclosed that each rotary tiller blade is installed individually by using a long screw, so that when one of the blades is worn, it is easy to replace it.

[0004] In the above technical solution, the end of the long screw is exposed. When the rotary tiller turns over gravel and other debris, there is a risk that the debris may splash onto the long screw. In addition, the long screw is in contact with the soil and is prone to friction, which can easily cause changes in the tightness of the long screw, thus posing a potential risk and affecting the safety of the rotary tiller. Utility Model Content

[0005] The technical problem solved by this utility model is to address the issue in the prior art where the exposed long screw is prone to impact during rotary tillage, affecting the tightness of the blade installation.

[0006] This utility model can be achieved through the following technical solution: a rotary tiller blade replacement mechanism, including a rotating shaft installed on the rotary tiller body, a plurality of sets of rotary tiller blades installed on the rotating shaft through a blade installation mechanism, the blade installation mechanism including an installation plate fixedly installed on the rotating shaft, the installation plate having a plurality of embedded slots for installing the rotary tiller blades, and the interior of the embedded slots being provided with a limiting platform for limiting the nuts and screw ends.

[0007] A further technical improvement of this utility model is that a shielding cover for achieving the protective function is provided on the embedded slot.

[0008] A further technical improvement of this utility model is that the mounting plate includes a first mounting base, an intermediate mounting base, and a second mounting base. A first directional blade is installed between the first mounting base and the intermediate mounting base, and a second directional blade is installed between the second mounting base and the intermediate mounting base.

[0009] A further technical improvement of this utility model is that the cutting edges of the first direction blade and the second direction blade are in opposite directions.

[0010] A further technical improvement of this utility model is that: when the blade in the first direction is installed, mounting bolts are fitted through the first mounting base, the intermediate mounting base and the second mounting base, and mounting nuts are fitted on the mounting bolts to fix the first mounting blade.

[0011] A further technical improvement of this utility model is that the mounting nut includes a first nut and a second nut, the first nut being located between the first mounting blade and the intermediate mounting base, and the second nut being located on the side of the second mounting base.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This application utilizes an embedded slot and a limiting platform inside the embedded slot to limit the end of the nut and screw, so that the end of the screw and the nut can be housed inside the embedded slot, thus protecting the screw and nut and preventing the end of the screw from being exposed, which could cause impact during rotary tillage. This protects the rotary tillage blades and prevents the tightness of their installation from affecting the problem.

[0014] 2. This application utilizes the combined action of the first mounting base, the intermediate mounting base, and the second mounting base to enable the rotary tiller blades in different directions to be installed more securely through the limiting function of the three mounting bases, thereby further ensuring the stability of the rotary tiller blade installation and solving the problem of easy shaking caused by direct installation of rotary tiller blades in the prior art. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the embedded slot position of this utility model;

[0017] Figure 2 This is a schematic diagram showing the position of the rotation axis of this utility model;

[0018] Figure 3 This is a schematic diagram showing the location of the blade mounting mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram showing the positions of the first and second direction blades of this utility model;

[0020] Figure 5 This is a schematic diagram showing the position of the shielding cover of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified view of a portion of point A in the middle.

[0022] In the diagram: 1. Rotary tiller body; 2. Rotary tiller blades; 3. Blade mounting mechanism; 31. First direction blade; 32. Mounting groove; 33. First mounting base; 34. Intermediate mounting base; 35. Second mounting base; 36. Second direction blade; 37. Embedded slot; 38. Mounting bolt; 39. First nut; 310. Second nut; 311. Cover; 4. Rotating shaft. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] Please see Figure 1-6 As shown, a rotary tiller blade changing mechanism includes a rotary tiller body 1, on which a rotating shaft 4 is rotatably mounted. The rotating shaft 4 is driven by a power motor. The power motor drives the rotation of the rotating shaft 4, thereby driving the rotation of the rotary tiller blades 2 mounted on the rotating shaft 4. This allows the rotary tiller blades 2 to contact the soil and achieve the function of tilling the soil. In this application, the rotary tiller blades 2 are mounted on the rotating shaft 4 through blade mounting mechanisms 3. Multiple sets of rotary tiller blades 2 are provided, and multiple sets of blade mounting mechanisms 3 are also provided. Multiple sets of blade mounting mechanisms 3 are used to arrange and install multiple sets of rotary tiller blades 2 to ensure the tilling efficiency of the rotary tiller.

[0025] As a further embodiment of this application, in order to achieve the installation and protection of the rotary tiller blades 2, the blade installation mechanism 3 in this application includes an embedded slot 37, that is, the installation plate is installed on the rotating shaft 4, and then the rotary tiller blades 2 are respectively installed on the installation plate by using screws and nuts. In this process, since the installation plate is equipped with embedded slots 37, the screws and nuts can be stored. In this process, the screws or nuts are not directly exposed on the installation plate, which can prevent wear problems during rotary tillage. Thus, the installation of the rotary tiller blades 2 can be effectively protected, and the stability of the rotary tillage process can be further guaranteed.

[0026] Furthermore, the mounting plate includes a first mounting base 33, an intermediate mounting base 34, and a second mounting base 35. The first mounting base 33, the intermediate mounting base 34, and the second mounting base 35 are respectively fixedly mounted on the rotating shaft 4. The first mounting base 33, the intermediate mounting base 34, and the second mounting base 35 are provided with embedded slots 37 for bolt and nut installation. A mounting groove 32 is provided between the first mounting base 33 and the intermediate mounting base 34, and a mounting groove 32 is provided between the second mounting base 35 and the intermediate mounting base 34. The mounting groove 32 between the first mounting base 33 and the intermediate mounting base 34 is used to install the first direction blade 31, and the mounting groove 32 between the second mounting base 35 and the intermediate mounting base 34 is used to install the second direction blade 36. In use, by installing rotary tillage blades 2 in different directions, the rotary tillage range of the rotary tiller can be fully guaranteed, further ensuring the rotary tillage quality of the rotary tiller.

[0027] In this application, the dimensions of the embedded slot 37 are matched with the screw and nut. Therefore, in order to achieve the rotational engagement of the screw and nut, a hexagonal slot is provided at the end of the screw. An internal hex wrench is used to achieve relative rotation between the screw and nut, thereby enabling the threaded connection between the screw and nut, and further realizing the fixed installation of the first direction blade 31 and the second direction blade 36.

[0028] Furthermore, a cover 311 is provided on the top of the embedded slot 37. The cover 311 achieves the sealing function of the embedded slot 37 by pressing plastic, thereby further protecting the screw and nut to avoid the problem of the blade being firmly installed due to impact during rotary tillage.

[0029] When installing the first directional blade 31 and the second directional blade 36, the mounting bolt 38 used in this application penetrates the first mounting base 33, the intermediate mounting base 34, and the second mounting base 35. To tighten the mounting bolt 38, a first nut 39 and a second nut 310 are included. When installing the first directional blade 31, the first nut 39 is located between the first mounting base 33 and the intermediate mounting base 34, and simultaneously between the intermediate mounting base 34 and the first directional blade 31. The first nut 39 is used to press the first directional blade 31 tightly onto the first mounting base 33. Then, the second nut 310 is used to define the relative position of the bolt and the second mounting base 35. When the second directional blade 36 is installed, the first nut 39 is located between the second mounting base 35 and the intermediate mounting base 34, and the first nut 39 is located between the intermediate mounting base 34 and the second directional blade 36. The first nut 39 is used to press the second directional blade 36 tightly onto the second mounting base 35. Then, the second nut 310 is used to fix the relative position of the bolt and the first mounting base 33. Therefore, in this application, the stability of the installation of the first directional blade 31 and the second directional blade 36 can be effectively guaranteed.

[0030] In use, when the first directional blade 31 is installed, the first nut 39 is located between the first mounting base 33 and the intermediate mounting base 34, and also between the intermediate mounting base 34 and the first directional blade 31. The first nut 39 is used to press the first directional blade 31 tightly onto the first mounting base 33. Then, the second nut 310 is used to fix the relative position of the bolt and the second mounting base 35. When the second directional blade 36 is installed, the first nut 39 is located between the second mounting base 35 and the intermediate mounting base 34, and also between the intermediate mounting base 34 and the second directional blade 36. The first nut 39 is used to press the second directional blade 36 tightly onto the second mounting base 35, and then the second nut 310 is used to fix the relative position of the bolt and the first mounting base 33. Therefore, in this application, the stability of the installation of the first directional blade 31 and the second directional blade 36 can be effectively guaranteed.

[0031] Meanwhile, in this application, by utilizing the embedded slot 37, the screw and nut can be stored and protected, reducing the problem of unstable installation of the rotary tillage blade 2 due to impact during rotary tillage, thereby effectively protecting the rotary tillage blade 2.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rotary tiller blade replacement mechanism, comprising a rotating shaft (4) mounted on a rotary tiller body (1), wherein a plurality of sets of rotary tiller blades (2) are mounted on the rotating shaft (4) via a blade mounting mechanism (3), characterized in that: The blade mounting mechanism (3) includes a mounting plate fixedly mounted on a rotating shaft (4). The mounting plate has several embedded slots (37) for mounting the rotary tillage blades (2), and the embedded slots (37) are provided with a limiting platform for limiting the nuts and screw ends.

2. The rotary tiller blade replacement mechanism according to claim 1, characterized in that, The embedded slot (37) is fitted with a shield (311) for providing protection.

3. The rotary tiller blade replacement mechanism according to claim 1, characterized in that, The mounting plate includes a first mounting base (33), an intermediate mounting base (34), and a second mounting base (35). A first directional blade (31) is installed between the first mounting base (33) and the intermediate mounting base (34), and a second directional blade (36) is installed between the second mounting base (35) and the intermediate mounting base (34).

4. A rotary tiller blade replacement mechanism according to claim 3, characterized in that, The blades of the first directional blade (31) and the second directional blade (36) have opposite cutting directions.

5. A rotary tiller blade replacement mechanism according to claim 3, characterized in that, When the first direction blade (31) is installed, the first mounting base (33), the intermediate mounting base (34) and the second mounting base (35) are fitted with mounting bolts (38), and the mounting bolts (38) are fitted with mounting nuts for fixing the first direction blade (31).

6. A rotary tiller blade replacement mechanism according to claim 5, characterized in that, The mounting nut includes a first nut (39) and a second nut (310), the first nut (39) being located between the first direction blade (31) and the intermediate mounting base (34), and the second nut (310) being located on the side of the second mounting base (35).

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