Rotary cultivator and agricultural machinery

Abstract

The utility model provides a rotary cultivator which comprises a machine frame, a gearbox is arranged on the machine frame, side plates are arranged on the two sides of the machine frame, and a rotatable knife roll shaft is arranged between the side plates and the gearbox. A connecting device is arranged at one end of the knife roll shaft, and the knife roll shaft is detachably and fixedly connected with the gearbox through the connecting device; the connecting device comprises a first flange and a second flange detachably and fixedly connected with the first flange, and a clamping part is arranged on the connecting face of the first flange and the second flange. According to the rotary cultivator of the structure, the connecting device is arranged between the cutter roller shaft and the gearbox, and the connecting device comprises the first flange and the second flange which can be arranged together in a clamped mode, so that compared with a rotary cultivator of an existing structure, the rotary cultivator has the advantages of being firmer in connection, longer in service life and lower in failure rate. In addition, the utility model further provides an agricultural machine comprising the rotary cultivator.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery, in particular to a rotary tiller and agricultural machinery. Background Art

[0002] In recent years, with the continuous development of economy and technology, agricultural machinery of various structures, such as rotary tillers, have been increasingly widely used in agricultural production activities.

[0003] The widely used rotary tillers currently consist of a frame with a gearbox mounted on the frame, side panels on either side of the frame, a cutter roller shaft positioned between the gearbox and the side panels, and a plurality of cutters mounted on the cutter roller shaft. During operation, the gearbox drives the cutter roller shaft to rotate, which in turn drives the cutters, thereby completing the rotary tillage of the land. In current rotary tillers, the connection between the cutter roller shaft and the gearbox—that is, the connection between the cutter shaft flange and the spline flange—is typically secured by bolts or welding. However, during use, bolts often deform or break, or weld surfaces crack, leading to malfunctions and, in turn, operational efficiency.

[0004] In summary, how to provide a rotary tiller with a more reliable connection, a longer service life, and a lower failure rate, and agricultural machinery including the rotary tiller, has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a rotary tiller with more reliable connection, longer service life and lower failure rate, and agricultural machinery including the rotary tiller.

[0006] The solution of the present invention is achieved as follows: The present invention proposes a rotary tiller, comprising a frame, a gearbox provided on the frame, side panels provided on both sides of the frame, a rotatable blade roller shaft provided between the side panels and the gearbox; a connecting device provided at one end of the blade roller shaft, the blade roller shaft being detachably fixedly connected to the gearbox via the connecting device; the connecting device comprising a first flange and a second flange detachably fixedly connected to the first flange, a snap-fit ​​portion provided on the connecting surface of the first flange and the second flange. Compared with rotary tillers of existing structures, the rotary tiller of this structure has the advantages of a more secure connection, a longer service life, and a lower failure rate, by providing a connecting device between the blade roller shaft and the gearbox, and the connecting device comprising a first flange and a second flange that can be snap-fitted together.

[0007] Another technical solution of the present invention is that, based on the above, the engaging portion includes a recessed portion, and the recessed portion is provided on one of the first flange and the second flange.

[0008] Another technical solution of the present invention is that, based on the above, the engaging portion includes a protruding portion engaged with the recessed portion, and the protruding portion is provided on another component of the first flange and the second flange.

[0009] Another technical solution of the present invention is that, based on the above, the recessed portion is a groove, and the groove is provided on the first flange and passes through the first flange.

[0010] Another technical solution of the present invention is that, based on the above, the raised portion is a protrusion, the protrusion is provided on the second flange, and the protrusion can be placed in the groove.

[0011] Another technical solution of the present invention is that, based on the above, a plurality of first connection holes are provided on the first flange, and a plurality of second connection holes are provided at corresponding positions of the second flange.

[0012] Another technical solution of the present invention is that, based on the above, the number of the first connecting holes and the second connecting holes are both 3 or more, and bolts for connecting are further provided in the first connecting holes and the second connecting holes.

[0013] Another technical solution of the present invention is that, based on the above, a plurality of anti-entanglement strips for preventing debris from being entangled are further provided on the periphery of the second flange, and the anti-entanglement strips are fixedly arranged on one side of the second connecting hole.

[0014] Another technical solution of the present invention is that, based on the above, a plow body is further provided on the frame, the plow body is arranged on one side of the gearbox, and a floating drag plate is further provided on the frame, the drag plate is used to prevent soil from splashing.

[0015] On the other hand, the present invention also proposes an agricultural machine, comprising a tractor and a rotary tiller detachably arranged at one end of the tractor, wherein the rotary tiller is the rotary tiller described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0017] Figure 1 This is a structural diagram of a rotary tiller according to the present invention;

[0018] Figure 2 for Figure 1 Schematic diagram of the structure of the connecting device;

[0019] Figure 3 for Figure 2Schematic diagram of the structure of the connecting device;

[0020] Figure 4 for Figure 2 Schematic diagram of the structure of the connecting device.

[0021] The corresponding relationship of the reference numerals is:

[0022] 1First flange 101First connecting hole 102Groove

[0023] 2 Bolt 3 Second flange 301 Second connection hole

[0024] 302 protrusion 4 knife roller shaft 5 drag plate

[0025] 6 frame 7 gearbox 8 plow body

[0026] 9 oil seal seat 10 side plate 11 anti-winding strip DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings. The description in this section is merely exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention. In addition, those skilled in the art can combine the features in the embodiments and different embodiments of the present invention accordingly based on the description of this document.

[0028] The embodiments of the present invention are as follows, see Figures 1 to 4 The rotary tiller shown in the figure specifically includes a frame 6, a gearbox 7 is provided on the frame 6, side plates 10 are provided on both sides of the frame 6, a rotatable knife roller shaft 4 is provided between the side plates 10 and the gearbox 7, and a plurality of blades are provided on the knife roller shaft 4. When the knife roller shaft 4 rotates, the blades are driven to rotate, thereby realizing rotary tillage of the land. One end of the knife roller shaft 4, i.e. Figure 1 The right end shown is also provided with a connecting device, through which the knife roller shaft 4 is detachably fixedly connected to the gearbox 7. Figures 2 to 4 As shown, the connecting device specifically includes a first flange 1 and a second flange 3 that is detachably fixedly connected to the first flange 1. The connecting surfaces of the first flange 1 and the second flange 3 are provided with a snap-fitting portion that can snap the first flange 1 and the second flange 3 together. Compared with conventional rotary tillers, this structure has the advantages of a more secure connection, a longer service life, and a lower failure rate by providing a connecting device between the blade roller shaft 4 and the gearbox 7, and the connecting device includes the first flange 1 and the second flange 3 that can snap together.

[0029] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the engaging portion specifically includes a recessed portion, which is provided on one of the first flange 1 and the second flange 3 .

[0030] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the engaging portion specifically includes a protruding portion engaged with the recessed portion, and the protruding portion is provided on the other component of the first flange 1 and the second flange 3 .

[0031] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the recessed portion is specifically a groove 102 , which is provided on the first flange 1 and passes through the mating surface between the first flange 1 and the second flange 3 .

[0032] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the raised portion is specifically a protrusion 302, which passes through the second flange 3 and can be placed in the groove 102. During rotation, the cooperation between the protrusion 302 and the groove 102 can bear the main torque, thereby greatly increasing the connection strength between the first flange 1 and the second flange 3.

[0033] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the first flange 1 is provided with a plurality of first connection holes 101, and the corresponding positions of the second flange 3 are provided with a plurality of second connection holes 301. The first connection holes 101 and the second connection holes 301 are preferably screw holes.

[0034] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the number of the first connecting holes 101 and the second connecting holes 301 are both 3 or more, preferably 4, and the first connecting holes 101 and the second connecting holes 301 are also provided with bolts 2 for connection, and the number of the bolts 2 is consistent with the number of the first connecting holes 101 and the second connecting holes 301.

[0035] On the basis of the above embodiment, in another embodiment of the present invention, Figures 2 to 4 As shown, the outer periphery of the second flange 3 is provided with several anti-wrap strips 11 to prevent debris from being entangled. These strips 11 are located on one side of the second connection hole 301. Preferably, there are two or more anti-wrap strips 11. Rotation of the blade roller shaft 4 drives the anti-wrap strips 11 with it, cutting through debris such as weeds and preventing them from becoming entangled in the shaft end.

[0036] On the basis of the above embodiment, in another embodiment of the present invention, Figure 1As shown, the frame 6 is further provided with a plow body 8, which is disposed on one side of the gearbox 7, i.e., the right side as shown in the figure. The frame 6 is also provided with a floating carriage 5, which is disposed on the rear side of the frame 6 and is used to prevent soil from splashing during rotary tillage. In addition, an oil seal seat 9 is provided on the left side of the gearbox 7. The specific structure and arrangement of the oil seal seat 9 can be referred to the existing and improved technologies and will not be described in detail here.

[0037] The rotary tiller of the above structure is provided with a connecting device between the blade roller shaft 4 and the gearbox 7, and the connecting device includes a first flange 1 and a second flange 3 that can be snapped together. Specifically, a groove 102 is provided on the first flange 1, and a protrusion 302 that can cooperate with the groove 102 is provided on the second flange 3. The cooperation between the groove 102 and the protrusion 302 can effectively improve the connection strength of the first flange 1 and the second flange 3. Compared with the rotary tiller of the existing structure, it has the advantages of more reliable connection, longer service life, and lower failure rate.

[0038] In addition, the utility model also provides an agricultural machine, comprising a tractor and a rotary tiller detachably arranged at one end of the tractor.

[0039] The rotary tiller of this structure correspondingly has the advantages possessed by the above-mentioned rotary tiller.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A rotary tiller, characterized in that: The machine comprises a frame, a gearbox is provided on the frame, side plates are provided on both sides of the frame, and a rotatable knife roller shaft is provided between the side plates and the gearbox; One end of the knife roller shaft is provided with a connecting device, and the knife roller shaft is detachably fixedly connected to the gearbox through the connecting device; The connecting device includes a first flange and a second flange detachably fixedly connected to the first flange, and a clamping portion is provided on the connecting surfaces of the first flange and the second flange.

2. The rotary tiller according to claim 1, characterized in that The engaging portion includes a recessed portion, and the recessed portion is provided on one of the first flange and the second flange.

3. The rotary tiller according to claim 2, characterized in that: The engaging portion includes a protruding portion engaged with the recessed portion, and the protruding portion is provided on the other component of the first flange and the second flange.

4. The rotary tiller according to claim 3, characterized in that The recessed portion is a groove, which is opened on the first flange and passes through the first flange.

5. The rotary tiller according to claim 4, characterized in that The raised portion is a protrusion, which is arranged on the second flange and can be placed in the groove.

6. The rotary tiller according to claim 5, characterized in that The first flange is provided with a plurality of first connection holes, and the second flange is provided with a plurality of second connection holes at corresponding positions.

7. The rotary tiller according to claim 6, characterized in that The number of the first connecting holes and the second connecting holes are both 3 or more, and bolts for connecting are further provided in the first connecting holes and the second connecting holes.

8. The rotary tiller according to claim 7, characterized in that The periphery of the second flange is further provided with a plurality of anti-entanglement strips for preventing debris from being entangled, and the anti-entanglement strips are fixedly arranged on one side of the second connecting hole.

9. The rotary tiller according to claim 8, characterized in that The frame is also provided with a plow body, which is arranged on one side of the gearbox. The frame is also provided with a floating drag plate, which is used to prevent soil from splashing.

10. An agricultural machine comprising a tractor and a rotary tiller detachably mounted on one end of the tractor, characterized in that: The rotary tiller is the rotary tiller according to any one of claims 1 to 8.

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