Paddy field rotary cultivator

Abstract

The utility model discloses a paddy field rotary cultivator which comprises a machine body, a walking part, a connecting part and a rotary tillage part, the machine body is installed on the walking part, and the rotary tillage part is connected with the machine body through the connecting part; a lifting mechanism is installed between the machine body and the connecting part and used for controlling the connecting part to ascend and descend. The walking part comprises a driving device and a walking crawler belt, and the driving device is used for driving the walking crawler belt to walk; the ratio of the width of the walking crawler belt to the width of the machine body is larger than 0.5. The rotary tillage part is connected to the machine body through the connecting part, lifting and descending of the connecting part can be controlled through the lifting mechanism, the connecting part drives the rotary tillage part to ascend and descend, and therefore lifting and descending of the rotary tillage part are achieved. The sinking depth of the paddy field rotary cultivator in a paddy field is reduced by improving the width of the walking crawler belt.

Description

Technical Field

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

[0002] Rotary tillers are divided into dryland and paddy field. Relatively speaking, paddy field machines have higher requirements. First of all, paddy field machines have higher requirements for the environment. Because of the water in the paddy field, the field base is softer. Due to its own weight, agricultural machinery needs to consider too many problems when entering the paddy field, which leads to the problem that paddy field rotary tillers cannot work normally. At the same time, because the paddy field area is wider, the volume of the rotary tiller is required to be larger and the weight is heavier. The lifting mechanism of the rotary tiller on the market can no longer meet the needs of paddy field rotary tillers. Utility Model Content

[0003] The utility model provides a paddy field rotary tiller, which can realize the lifting and lowering of the rotary tiller part through a lifting mechanism, and can reduce the sinking depth of the paddy field rotary tiller in the paddy field. The specific technical scheme is as follows:

[0004] A paddy field rotary tiller comprises a body, a walking part, a connecting part and a rotary tilling part, wherein the body is mounted on the walking part, and the rotary tilling part is connected to the body through the connecting part; a lifting mechanism is mounted between the body and the connecting part, and the lifting mechanism is used to control the lifting and lowering of the connecting part; the walking part comprises a driving device and a walking crawler, and the driving device is used to drive the walking crawler to move; the ratio of the width of the walking crawler to the width of the body is greater than 0.5.

[0005] Through the above technical solution, the connecting part connects the rotary tilling part to the main body of the machine, and the lifting and lowering of the connecting part can be controlled by the lifting mechanism. The connecting part drives the rotary tilling part to be lifted and lowered, thereby realizing the lifting and lowering of the rotary tilling part. Before the rotary tiller enters the paddy field and when it is about to leave the paddy field, the rotary tilling part can be flipped and lifted to prevent the rotary tilling part from damaging the paddy field ridge before operation, and to prevent it from damaging the rotary tilling surface after the operation is completed. It can also prevent the rotary tilling part from increasing walking resistance when walking on the road and from being magnetized to the hard road surface during walking, causing damage to the road surface. By improving the width of the walking track, it is used to reduce the depth of the paddy field rotary tiller in the paddy field.

[0006] Preferably, the walking crawler includes two symmetrically arranged crawlers, and the width of each crawler is 1 / 4 of the width of the fuselage body.

[0007] Through the above technical solution, the crawlers are symmetrically arranged to increase the stability and flexibility of the rotary tiller when it is moving.

[0008] Preferably, a plurality of ridges are installed on the crawler, wherein the ridges are perpendicular to the sides of the crawler, the length of the ridges is the width of the crawler, one end of the ridges is flush with one of the sides of the crawler, and the installation directions of two adjacent ridges on the crawler are opposite.

[0009] Through the above technical solution, when the paddy field is moved, the convex ridge will sink into the paddy field, so that the side of the convex ridge contacts the soil of the paddy field, increasing the friction between the crawler and the paddy field, making it easier for the paddy field rotary tiller to move in the paddy field.

[0010] Preferably, a control console is installed on the fuselage body, and a control system is installed on the console. The control system is electrically connected to the walking part for controlling the direction and speed of travel, and the control system is electrically connected to the lifting mechanism for controlling the lifting and lowering of the connecting part.

[0011] Through the above technical solution, the movement of the paddy field rotary tiller and the lifting and lowering of the rotary tilling part can be directly controlled on the control console, making the operation of the paddy field rotary tiller more convenient.

[0012] Preferably, the lifting mechanism is located above the fuselage body.

[0013] Through the above technical solution, the pollution of the lifting mechanism by muddy water in the paddy field can be effectively reduced, thereby reducing the failure rate of the lifting mechanism.

[0014] Preferably, the connecting part includes a fixed frame, a slipknot connecting rod mechanism and a rotary tillage frame, the rotary tillage frame is connected to the fixed frame through the slipknot connecting rod mechanism, the fixed frame is rotatably connected to the fuselage body, the fixed frame is connected to the lifting mechanism, and the rotary tillage frame is connected to the rotary tillage part.

[0015] Through the above technical solution, the fixing frame and the fuselage body are rotatably connected, so that the fixing frame can rotate around the fuselage body to achieve the lifting and lowering of the connecting part.

[0016] Preferably, the slip-knot linkage mechanism comprises an upper slip-knot linkage mechanism and a lower slip-knot linkage mechanism, the upper slip-knot linkage mechanism consists of two symmetrically distributed first slip-knot linkages, and the two first slip-knot linkages are distributed in an "eight" shape; the lower slip-knot linkage mechanism consists of two symmetrically distributed second slip-knot linkages, and the two second slip-knot linkages are distributed in an "eight" shape, and the shapes of the first slip-knot linkage and the second slip-knot linkage are opposite.

[0017] Through the above technical solution, the slipknot connecting rod mechanism is divided into two layers, the upper and lower layers make the connection of the connecting mechanism more stable, and the upper and lower layers are two "eight" shapes with opposite shapes, which can reduce the swing amplitude of the rotary tillage unit when working. When the rotary tillage unit is turned over and lifted, the stability of the slipknot connecting rod mechanism support can also be increased.

[0018] Preferably, the slip-knot linkage mechanism includes an upper slip-knot linkage mechanism and a lower slip-knot linkage mechanism, the upper slip-knot linkage mechanism consists of three first slip-knot linkages, one of which is located in the middle, and the other two first slip-knot linkages are distributed on both sides in an "eight" shape; the lower slip-knot linkage mechanism consists of three second slip-knot linkages, one of which is located in the middle of the second slip-knot linkages, and the other two second slip-knot linkages are distributed on both sides in an "eight" shape, and the distribution shapes of the first slip-knot linkage and the second slip-knot linkage are opposite.

[0019] Through the above technical solution, the amplitude of the left-right shaking of the rotary tillage unit during operation is further reduced. When the rotary tillage unit is turned over and lifted, the stability of the support of the slipknot connecting rod mechanism can also be further increased.

[0020] Preferably, an arc-shaped suspension rod is provided on the fixing frame, one end of the arc-shaped suspension rod is fixedly connected to the fixing frame, and the other end is connected to the rotary tillage frame through a flexible connecting piece, and the arc-shaped suspension rod is connected to the lifting mechanism.

[0021] Through the above technical solution, when the suspension rod and the flexible connector cooperate to flip and lift, the flexible connector can provide the rotary tillage frame with a pulling force in the rotation tangent direction, further improving the stability when the rotary tillage part is flipped and lifted. The shape of the suspension rod is set to be an arc, which can reduce the space occupied by the suspension rod when the rotary tillage part is flipped and lifted.

[0022] Preferably, the lifting mechanism is an electric telescopic rod, which includes a driving part and a telescopic part, the telescopic part is rotationally connected to the arc-shaped suspension rod, the driving part is rotationally connected to the fuselage body, and the electric telescopic rod is electrically connected to the control console.

[0023] Through the above technical solution, the lifting mechanism adopts an electric telescopic rod, so that the lifting mechanism can be directly electrically controlled through the control console, which makes the operation easier.

[0024] The beneficial effects of the utility model are:

[0025] 1. The lifting and lowering of the connecting part can be controlled by the lifting mechanism, and the connecting part drives the rotary tilling part to be lifted and lowered, thereby realizing the lifting and lowering of the rotary tilling part.

[0026] 2. By improving the width of the walking track, the depth of the paddy field rotary tiller in the paddy field can be reduced.

[0027] 3. By improving the slipknot connecting rod mechanism, the amplitude of the left and right swing of the rotary tillage unit during operation is reduced, and the stability of the slipknot connecting rod mechanism support is increased when the rotary tillage unit is turned over and lifted. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0029] Figure 1 It is a structural schematic diagram of Example 1;

[0030] Figure 2 It is a schematic diagram of the structure when the rotary tillage part is lifted;

[0031] Figure 3 for Figure 1 A top view of

[0032] Figure 4 for Figure 1 Bottom view of

[0033] Figure 5 is a structural schematic diagram of the connecting part;

[0034] Figure 6 for Figure 5 A top view of

[0035] Figure 7 is a schematic structural diagram of the connecting portion in Example 2;

[0036] 1. Main body, 11. Control console, 2. Walking part, 21. Driving device, 22. Walking track, 3. Connecting part, 31. Fixed frame, 311. Arc suspension rod, 312. Flexible connecting piece, 32. Slipknot connecting rod mechanism, 321. First slipknot connecting rod, 322. Second slipknot connecting rod, 33. Rotary tillage frame, 4. Rotary tillage part, 5. Lifting mechanism, 51. Driving part, 52. Telescopic part. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the drawings of the specification. In the following description, many specific details are set forth to facilitate a full understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1

[0040] like Figure 1-4 As shown, a paddy field rotary tiller includes a body 1, a walking part 2, a connecting part 3 and a rotary tilling part 4. The body 1 is mounted on the walking part 2, and the rotary tilling part 4 is connected to the body 1 through the connecting part 3. A lifting mechanism 5 is installed between the body 1 and the connecting part 3. The pollution of the lifting mechanism by muddy water in the paddy field can be effectively reduced, thereby reducing the failure rate of the lifting mechanism. A control console 11 is installed on the body 1, and a control system is installed on the control console 11. The control system is electrically connected to the walking part 2 for controlling the direction and speed of travel, and the control system is electrically connected to the lifting mechanism 5 for controlling the lifting and lowering of the connecting part 3. In this embodiment, the lifting mechanism 5 adopts an electric telescopic rod, which is arranged above the body 1. There is enough space to arrange multiple electric telescopic rods, and two are adopted in this embodiment. The electric telescopic rod includes a driving part 51 and a telescopic part 52, the telescopic part is rotatably connected to the connecting part 3, the driving part 51 is rotatably connected to the body 1, and the electric telescopic rod is electrically connected to the control system.

[0041] In this embodiment, a lifting mechanism 5 is installed between the connecting part and the main body of the machine to realize the lifting and lowering of the connecting part, thereby driving the lifting and lowering of the rotary tilling part, so that the rotary tilling part can be flipped and lifted before the rotary tiller enters the paddy field and when it is about to leave the paddy field, so as to prevent the rotary tilling part from damaging the paddy field ridge before operation, and to prevent it from damaging the rotary tilling surface after the operation is completed. It can also prevent the rotary tilling part from increasing walking resistance when walking on the road and from being magnetized to the hard road surface during walking, thereby causing damage to the road surface.

[0042] The walking part 2 includes a driving device 21 and a walking crawler 22. The driving device 21 is used to drive the walking crawler to walk. The walking crawler includes two symmetrically arranged crawlers 22, and the width of each crawler is 1 / 4 of the width of the fuselage body 1. A plurality of ridges 221 are installed on the crawler 22, and the specific installation method can be welding or integral molding. The ridges 221 are perpendicular to the side of the crawler 22, and the length of the ridges 221 is 1 / 2-2 / 3 of the width of the crawler 22. One end of the ridge 221 is flush with one of the side edges of the crawler 22, and the installation directions of two adjacent ridges 221 on the crawler 22 are opposite.

[0043] The width of the crawler is increased so that the overall width of the two crawlers reaches 1 / 2 of the width of the main body 1. The contact area between the crawler and the paddy field is increased, thereby reducing the depth of the paddy field rotary tiller in the paddy field. When walking in the paddy field, the convex ridge will sink into the paddy field, so that the side of the convex ridge contacts the soil of the paddy field, increasing the friction between the crawler and the paddy field, so that the paddy field rotary tiller can walk in the paddy field.

[0044] Specifically, the walking part 2 in this embodiment is driven by a motor, and can also be driven by an internal combustion engine as needed. Taking the motor as an example, the driving device includes a motor, a transmission assembly and a driving gear, and the driving gear is connected to the walking track. The motor drives the transmission assembly to rotate, and the transmission assembly drives the driving gear to rotate, thereby driving the track 22 forward or backward. When the travel speeds of the two tracks are inconsistent, the paddy field rotary tiller can be turned. The walking function of the walking part 2 is realized through the above scheme.

[0045] like Figure 5 , 6 As shown, the connection part 3 includes a fixed frame 31, a slip-knot connecting rod mechanism 32 and a rotary tillage frame 33. The fixed frame 31 is connected by a square tube and is divided into an upper and lower layer. The rotary tillage frame 33 is also connected by a square tube and is divided into an upper and lower layer. The connection method of the slip-knot connecting rod mechanism can be a ball head connection, or an axial hole connection, or a universal joint, etc. The slip-knot connecting rod mechanism 32 includes an upper slip-knot connecting rod mechanism and a lower slip-knot connecting rod mechanism. The upper slip-knot connecting rod mechanism is composed of two symmetrically distributed first slip-knot connecting rods 321. The first slip-knot connecting rods 321 are movably connected to the upper layer of the fixed frame 31 and the upper layer of the rotary tillage frame 33, respectively. The two first slip-knot connecting rods 321 are distributed in an "eight" shape. The lower slip-knot link mechanism is composed of two symmetrically distributed second slip-knot links 322, the two second slip-knot links 322 are distributed in an "eight" shape, the second slip-knot links 322 are movably connected to the upper layer of the fixed frame 31 and the upper layer of the rotary tillage frame 33, respectively, and the two first slip-knot links 321 are distributed in an "eight" shape. The first slip-knot links 321 and the second slip-knot links 322 are distributed in opposite shapes. The above-mentioned connection method of the connecting part 3 reduces the amplitude of the left and right shaking of the rotary tillage part during operation. When the rotary tillage part is turned over and lifted, the stability of the slip-knot link mechanism support can also be further increased.

[0046] like Figure 5 As shown, the fixed frame 31 is provided with an arc-shaped suspension rod 311, one end of the arc-shaped suspension rod 311 is fixedly connected to the fixed frame 31, and the other end is connected to the rotary tillage frame 33 through a flexible connector 312, and the flexible connector 312 in this embodiment is an iron chain. The arc-shaped suspension rod 311 is connected to the telescopic part 52.

[0047] The suspension rod and the flexible connector cooperate to provide the rotary tillage frame with a pulling force in the rotation tangent direction when the rotary tillage frame is turned over and lifted, further improving the stability when the rotary tillage frame is turned over and lifted. The shape of the suspension rod is set to be an arc, which can reduce the space occupied by the suspension rod when the rotary tillage frame is turned over and lifted.

[0048] Example 2

[0049] The difference from Implementation 1 lies in the slipknot connecting rod mechanism, and the rest is the same as Implementation 1.

[0050] like Figure 7 As shown, the slip-knot link mechanism 32 includes an upper slip-knot link mechanism and a lower slip-knot link mechanism, wherein the upper slip-knot link mechanism is composed of three first slip-knot links 321, one of which is located in the middle, and the other two first slip-knot links 321 are distributed on both sides in an "eight" shape; the lower slip-knot link mechanism is composed of three second slip-knot links 322, one of which is located in the middle of the second slip-knot links 322, and the other two second slip-knot links 322 are distributed on both sides in an "eight" shape, and the first slip-knot links 321 and the second slip-knot links 322 are distributed in opposite shapes. The amplitude of the left and right shaking of the rotary tillage part during operation is further reduced. When the rotary tillage part is turned over and lifted, the stability of the slip-knot link mechanism support is further increased.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A paddy field rotary tiller, characterized in that: The invention comprises a main body (1), a walking part (2), a connecting part (3) and a rotary tilling part (4), wherein the main body (1) is mounted on the walking part (2), and the rotary tilling part (4) is connected to the main body (1) via the connecting part (3); a lifting mechanism (5) is installed between the main body (1) and the connecting part (3), and the lifting mechanism (5) is used to control the lifting and lowering of the connecting part (3); the walking part (2) comprises a driving device (21) and a walking crawler, and the driving device (21) is used to drive the walking crawler to walk; the ratio of the width of the walking crawler to the width of the main body (1) is greater than 0.

5.

2. A paddy field rotary tiller according to claim 1, characterized in that: The walking crawler comprises two crawlers (22) arranged symmetrically, and the width of each crawler is 1 / 4 of the width of the fuselage body (1).

3. A paddy field rotary tiller according to claim 2, characterized in that: A plurality of ridges (221) are installed on the crawler (22), the ridges (221) are perpendicular to the side of the crawler (22), the length of the ridges (221) is 1 / 2-2 / 3 of the width of the crawler (22), one end of the ridge (221) is flush with one of the side edges of the crawler (22), and the installation directions of two adjacent ridges (221) on the crawler (22) are opposite.

4. A paddy field rotary tiller according to claim 1, characterized in that: A control console (11) is installed on the fuselage body (1), and a control system is installed on the control console (11). The control system is electrically connected to the walking part (2) and is used to control the direction and speed of travel. The control system is electrically connected to the lifting mechanism (5) and is used to control the lifting and lowering of the connecting part (3).

5. The paddy field rotary tiller according to claim 1, characterized in that: The lifting mechanism (5) is located above the fuselage body (1).

6. A paddy field rotary tiller according to claim 1, characterized in that: The connecting part (3) comprises a fixed frame (31), a slip-knot connecting rod mechanism (32) and a rotary tillage frame (33); the rotary tillage frame (33) is connected to the fixed frame (31) via the slip-knot connecting rod mechanism (32); the fixed frame (31) is rotatably connected to the machine body (1); the fixed frame (31) is connected to a lifting mechanism (5); and the rotary tillage frame (33) is connected to the rotary tillage part (4).

7. A paddy field rotary tiller according to claim 6, characterized in that: The slip-knot link mechanism (32) comprises an upper slip-knot link mechanism and a lower slip-knot link mechanism, wherein the upper slip-knot link mechanism is composed of two symmetrically distributed first slip-knot links (321), and the two first slip-knot links (321) are distributed in an "eight" shape; the lower slip-knot link mechanism is composed of two symmetrically distributed second slip-knot links (322), and the two second slip-knot links (322) are distributed in an "eight" shape, and the first slip-knot links (321) and the second slip-knot links (322) are distributed in opposite shapes.

8. The paddy field rotary tiller according to claim 6, characterized in that: The slip-knot link mechanism (32) comprises an upper slip-knot link mechanism and a lower slip-knot link mechanism, wherein the upper slip-knot link mechanism is composed of three first slip-knot links (321), one of which is located in the middle, and the other two first slip-knot links (321) are distributed on both sides in an "eight" shape; the lower slip-knot link mechanism is composed of three second slip-knot links (322), one of which is located in the middle of the second slip-knot links (322), and the other two second slip-knot links (322) are distributed on both sides in an "eight" shape, and the first slip-knot links (321) and the second slip-knot links (322) are distributed in opposite shapes.

9. A paddy field rotary tiller according to claim 6, characterized in that: The fixed frame (31) is provided with an arc-shaped suspension rod (311), one end of the arc-shaped suspension rod (311) is fixedly connected to the fixed frame (31), and the other end is connected to the rotary tillage frame (33) via a flexible connecting piece (312), and the arc-shaped suspension rod (311) is connected to the lifting mechanism (5).

10. The paddy field rotary tiller according to claim 8, characterized in that: The lifting mechanism (5) is an electric telescopic rod, comprising a driving part (51) and a telescopic part (52), the telescopic part being rotatably connected to the arc-shaped suspension rod (311), the driving part (51) being rotatably connected to the fuselage body (1), and the electric telescopic rod being electrically connected to a control system.

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