Tilling cutter of mini-tiller

Abstract

The utility model relates to the technical field of agricultural machinery accessories, and particularly discloses a mini-tiller tilling cutter which comprises a cutter head coaxially provided with a shaft hole for a rotary tillage cutter shaft to penetrate through, a plurality of containing grooves formed in the circumferential direction, a plurality of rotary tillage cutters and a plurality of fixing structures, and the inner side ends of the rotary tillage cutters slide in the containing grooves respectively. The rotary cultivator has the advantages that the rotary cultivator has the advantages that the rotary cultivator can be mounted on the rotary cultivator, the rotary cultivator can be mounted on the rotary cultivator, the rotary cultivator can be mounted on the rotary cultivator, the rotary cultivator can be mounted on the rotary cultivator, the rotary cultivator can be mounted on the rotary cultivator, and accordingly the rotary cultivator with the single size can not be applicable to reclamation processes of lands with different depths.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural machinery accessories, and specifically discloses a tillage blade for a micro-tillage machine. Background Art

[0002] As a small tillage machine, micro-tillage machines are widely used in tillage operations in plains, mountainous areas, hilly areas, dry land, paddy fields, orchards, etc. Micro-tillage machines use rotary tillers as their working parts and have strong soil breaking capabilities.

[0003] Typically, the tilling blades of a micro-tiller are fixed to a rotary blade shaft via a cutter disc. Bolts secure several blades to the disc circumferentially. During tillage operations, the rotation of the rotary blade shaft drives the disc to rotate synchronously, driving the plow blades fixed to the disc to complete land reclamation.

[0004] In the prior art, the blades and cutterhead are secured by pre-forming through-holes in the blades and cutterhead, aligning the through-holes, and then inserting bolts to secure the blades. Consequently, during blade installation, the relative distance between the blade and the cutterhead axis cannot be adjusted. The relative position between each blade size and the cutterhead is fixed and cannot be changed. This makes it impossible to adjust the relative position of the blade and cutterhead to achieve deeper or shallower land reclamation operations.

[0005] Therefore, in view of this, the inventor provides a micro-tillage machine tillage blade to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the problem that the relative position of the tilling blade and the cutter disc of a traditional rotary tiller cannot be changed during installation, and the tilling blade of a single size cannot be applied to land reclamation processes at different depths.

[0007] In order to achieve the above-mentioned purpose, the basic solution of the utility model provides a micro-tillage machine tillage blade, comprising:

[0008] The cutter disc is coaxially provided with an axial hole for the rotary tiller shaft to pass through, and is circumferentially provided with a plurality of receiving grooves;

[0009] A plurality of rotary tillage blades, the inner ends of which slide in respective receiving grooves;

[0010] A plurality of fixing structures are arranged on one side of the cutter disc and are used to fix the inner end position of the rotary tiller blade extending into the accommodating groove.

[0011] Furthermore, the fixing structure includes:

[0012] A slide plate is slidably connected to the side wall of the cutter disc and its end can abut against the side wall of the rotary tiller blade;

[0013] A reset mechanism is provided on the cutter disc and is used to press the slide plate against the adjacent rotary tiller blade;

[0014] A fixing member is provided on the slide plate and is used to fix the relative position of the slide plate and the side wall of the cutter head;

[0015] The rotary tiller is provided with convex teeth at equal intervals, and gaps for the end of the slide plate to be inserted are formed between adjacent convex teeth.

[0016] Furthermore, the slide is an arc-shaped slide, and the cutter disc is provided with an arc-shaped slide groove for the arc-shaped slide to slide inside and connected to the accommodating groove. The reset mechanism is a reset spring fixed between the arc-shaped slide groove and the arc-shaped slide and used to press the slide against the adjacent rotary blade.

[0017] Furthermore, an internal threaded hole is opened in the arc-shaped slide groove, a positioning hole that can be connected to the internal threaded hole is opened on the slide plate, the fixing part is a connecting rod that is slidably connected to the positioning hole and can be extended into the internal threaded hole, and the outer wall of the connecting rod is opened with an external thread that can engage with the internal threaded hole.

[0018] Furthermore, the arc-shaped chute and the arc-shaped slide plate are respectively located on the same circumference.

[0019] Furthermore, an arc-shaped reinforcing rib is provided between the arc-shaped sliding groove and the accommodating groove.

[0020] Furthermore, a plurality of latching keys are formed at the end of the arc-shaped slide plate, each of which can be latched into adjacent gaps.

[0021] The principle and effect of this solution are:

[0022] Compared with the prior art, the rotary tiller of the present invention can slide relative to the accommodating groove on the cutter disc. The spacing between the rotary tiller and the axis of the cutter disc can be freely selected through this connection relationship, and the relative position between the rotary tiller and the cutter disc can be fixed by a fixed structure after determination. This solves the problem that the relative position between the rotary tiller and the cutter disc of the traditional rotary tiller cannot be changed during installation, and the single-sized tiller cannot be used for land reclamation processes at different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of a tillage blade for a micro-tillage machine proposed in an embodiment of the present application is shown;

[0025] Figure 2A side view of a tiller blade of a micro-tillage machine proposed in an embodiment of the present application is shown;

[0026] Figure 3 A partial schematic diagram of a micro-tillage machine tillage blade proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0027] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0028] The figure marks in the drawings of the specification include: rotary tiller shaft 1, cutter disc 2, rotary tiller blade 3, inner disc body 4, reinforcing rib 5, arc-shaped slide groove 6, arc-shaped slide plate 7, return spring 8, connecting rod 9, convex tooth 10, and key 11.

[0029] A micro-tillage machine tillage blade, for example Figure 1 、 Figure 2 and Figure 3 As shown:

[0030] It includes a cutter disc 2, a plurality of rotary tillage blades 3 circumferentially mounted on the cutter disc 2, and a plurality of fixing structures circumferentially mounted on one side of the cutter disc 2 and used for fixing the rotary tillage blades 3.

[0031] The cutter disc 2 is provided with an axial hole for the rotary tiller shaft 1 to pass through, and the cutter disc 2 is also provided with four accommodating grooves in the circumferential direction.

[0032] The rotary tiller 3 includes a straight connecting portion and a plowing portion integrally formed at the top of the connecting portion and bent to one side. The bottom end of the connecting portion extends into the receiving groove, and a plurality of convex teeth 10 are formed on the outer wall of the connecting portion at equal intervals.

[0033] In this embodiment, the cutterhead 2 is further provided with several arcuate chutes 6 that communicate with the receiving slots. All arcuate chutes 6 are located to the left of the connected receiving slots and on the same circumference. Furthermore, reinforcing ribs 5 are integrally formed on the cutterhead 2 between the arcuate chutes 6 and the left, non-adjacent receiving slots. The arcuate chutes 6 and reinforcing ribs 5 divide the cutterhead 2 into an outer disc body and an inner disc body 4, with the receiving slots extending into the inner disc body 4.

[0034] The fixing structure includes a slide plate installed in the arcuate chute 6 and slidable in the arcuate chute 6, a reset mechanism installed in the arcuate chute 6 and a fixing member installed on the slide plate.

[0035] The slide is a curved slide 7, and the right end of each curved slide 7 is formed with two adjacent, equidistantly spaced latches 11 protruding outward. Gaps for the latches 11 are formed between adjacent protruding teeth 10 formed on the outer wall of the connecting portion. The two latches 11 on the right end of the same curved slide 7 can be respectively inserted into adjacent gaps. In this embodiment, the outer end surface of the latch 11 is a curved surface, and the inner end surface is a flat surface that abuts the protruding teeth 10.

[0036] The reset structure is a reset spring 8 fixedly installed between the left end of the arc-shaped slide groove 6 and the left end of the arc-shaped slide plate 7 and used to push the card key 11 into the gap between the protruding teeth 10.

[0037] An internal threaded hole is also provided in the arc-shaped slide groove 6, and a positioning hole with the same diameter as the internal threaded hole is provided on the slide plate. The fixing part is a connecting rod 9 that can be placed in the positioning hole and extended into the internal threaded hole, and the outer wall of the connecting rod 9 is provided with an external thread that can engage with the internal threaded hole.

[0038] When the present invention is used, the installation position of the rotary tiller 3 is determined in advance, and the connecting portion is inserted into the receiving groove. The number of protruding teeth 10 inserted into the receiving groove can be used as a length measurement unit.

[0039] When installing the connecting part of the rotary tiller blade 3, the connecting rod 9 needs to be removed. When the connecting part is inserted into the receiving groove, the protruding teeth 10 will contact the arc surface of the card key 11. The card key 11 will not restrict the protruding teeth 10. After it is inserted to a predetermined depth, the positioning hole on the slide plate is aligned with the internal threaded hole in the arc-shaped slide groove 6 and the connecting rod 9 is screwed in. At this time, make sure that the card key 11 is stuck in the gap between the adjacent protruding teeth 10, and the rotary tiller blade 3 can be assembled.

[0040] At the same time, during the plowing process of the rotary tiller 3, the plowing part of the rotary tiller 3 contacts the soil and will be subjected to an outward force. At this time, the plane inside the key 11 can abut against the convex tooth 10 to prevent the rotary tiller 3 from detaching.

[0041] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A micro-tillage machine tillage blade, characterized in that: include: The cutter disc is coaxially provided with an axial hole for the rotary tiller shaft to pass through, and is circumferentially provided with a plurality of receiving grooves; A plurality of rotary tillage blades, the inner ends of which slide in respective receiving grooves; A plurality of fixing structures are arranged on one side of the cutter disc and are used to fix the inner end position of the rotary tiller blade extending into the accommodating groove.

2. The micro-tillage machine tillage blade according to claim 1, characterized in that: The fixed structure includes: A slide plate is slidably connected to the side wall of the cutter disc and its end can abut against the side wall of the rotary tiller blade; A reset mechanism is provided on the cutter disc and is used to press the slide plate against the adjacent rotary tiller blade; A fixing member is provided on the slide plate and is used to fix the relative position of the slide plate and the side wall of the cutter head; The rotary tiller is provided with convex teeth at equal intervals, and gaps for the end of the slide plate to be inserted are formed between adjacent convex teeth.

3. The micro-tillage machine tillage blade according to claim 2, characterized in that: The slide plate is an arc-shaped slide plate, and the cutter disc is provided with an arc-shaped slide groove for the arc-shaped slide plate to slide inside and communicate with the accommodating groove. The reset mechanism is a reset spring fixed between the arc-shaped slide groove and the arc-shaped slide plate and used to press the slide plate against the adjacent rotary tiller blade.

4. The micro-tillage machine tillage blade according to claim 3, characterized in that: An internal threaded hole is opened in the arc-shaped slide groove, a positioning hole that can be connected to the internal threaded hole is opened on the slide plate, the fixing part is a connecting rod that is slidably connected to the positioning hole and can be extended into the internal threaded hole, and the outer wall of the connecting rod is opened with an external thread that can engage with the internal threaded hole.

5. The micro-tillage machine tillage blade according to claim 3, characterized in that: The arc-shaped chute and the arc-shaped slide plate are respectively located on the same circumference.

6. The micro-tillage machine tillage blade according to claim 5, characterized in that: An arc-shaped reinforcing rib is provided between the arc-shaped sliding groove and the accommodating groove.

7. The tillage blade of a micro-tillage machine according to claim 3, characterized in that: The ends of the arc-shaped slide plate are formed with a plurality of latching keys which can be respectively latched into adjacent gaps.

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