Foldable blade shaft rotary cultivator apparatus

Abstract

The utility model discloses a kind of rototiller equipment of foldable knife shaft, it is related to rototiller technical field, to solve the current knife shaft longer rototiller when narrow road or field transfer poor flexibility, inconvenient transportation, even possibly cannot pass certain section due to size problem technical problem, including first rototiller mechanism and the second rototiller mechanism being set in first rototiller mechanism both ends, the first rototiller mechanism includes first mounting plate, the upper end of the first mounting plate is welded with mounting frame, the second rototiller mechanism includes second mounting plate rotationally installed in the both ends of first mounting plate, the upper end of the mounting frame is symmetrically rotationally installed with hydraulic equipment, the upper end of the first mounting plate is symmetrically provided with support frame. The utility model has the advantages that knife shaft folding is realized by driving second mounting plate rotation of hydraulic equipment, greatly reduce width when transfer, cooperate with power transmission of butt joint pyramid and pyramid groove, support frame enhances stability, improve operating range and the convenience of use.

Description

Technical Field

[0001] This utility model relates to the field of rotary tiller technology, and more specifically, to a rotary tiller device with a foldable cutter shaft. Background Technology

[0002] A rotary tiller is an agricultural machine used for cultivating farmland soil. It primarily uses rotating blades to cut and pulverize the soil, achieving the functions of loosening, breaking up, and leveling the surface. It is typically used in conjunction with a tractor and can be classified into horizontal and vertical shaft types based on the position of the cutter shaft, with the horizontal shaft type being the most widely used. During operation, the high-speed rotating blades cut into the soil, breaking up clods and mixing in straw, weeds, etc., improving soil structure and creating favorable conditions for sowing. Compared to traditional plowing, rotary tillers are more efficient, achieving both soil breaking and leveling in a single pass, reducing the number of passes required. They are widely used in the cultivation of crops such as wheat, corn, and rice, and are particularly suitable for the intensive cultivation of small plots of land such as greenhouses and vegetable gardens, making them an important piece of equipment in modern agricultural production.

[0003] Currently, rotary tillers with long cutter shafts suffer from poor maneuverability when moving through narrow roads or fields, making transportation inconvenient. They may even be unable to pass through certain sections due to size limitations, severely impacting their operating range and ease of use. Therefore, we propose a rotary tiller with a foldable cutter shaft. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a rotary tiller with a foldable cutter shaft to solve the technical problems of the current rotary tillers with long cutter shafts having poor flexibility when moving in narrow roads or fields, inconvenient transportation, and even being unable to pass through certain road sections due to size issues.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a rotary tiller with a foldable blade shaft, comprising a first rotary tiller mechanism and a second rotary tiller mechanism disposed at both ends of the first rotary tiller mechanism. The first rotary tiller mechanism includes a first mounting plate, a mounting frame welded to the upper end of the first mounting plate, a connecting plate disposed at the front end of the mounting frame, and a drive box disposed at the lower end of the mounting frame. The second rotary tiller mechanism includes a second mounting plate rotatably mounted at both ends of the first mounting plate. A hydraulic device is symmetrically rotatably mounted on the upper end of the mounting frame, and the end of the hydraulic rod of the hydraulic device is rotatably connected to the upper end of the second mounting plate. A support frame is symmetrically disposed on the upper end of the first mounting plate.

[0006] Preferably, the upper end of the first mounting plate has a rectangular opening, and the lower part of the drive box extends from the rectangular opening to the bottom of the first mounting plate.

[0007] Preferably, baffles are bolted to the front and rear ends of the first mounting plate and the second mounting plate, and a first shaft fixing plate is symmetrically arranged at the lower end of the first mounting plate. A first cutter shaft is rotatably mounted between the first shaft fixing plates, and the middle position of the first cutter shaft is located inside the drive box.

[0008] Preferably, a second shaft fixing plate is symmetrically arranged at the lower end of the second mounting plate, and a second cutter shaft is rotatably mounted between the second shaft fixing plates. A mounting seat is provided on both the first cutter shaft and the second cutter shaft, and a rotary tiller blade is mounted on the mounting seat by bolts.

[0009] Preferably, a mating pyramid is provided at one end of the second cutter shaft near the first cutter shaft, and pyramidal grooves are provided at both ends of the first cutter shaft, with the mating pyramid inserted into the pyramidal grooves.

[0010] Preferably, the support frame includes symmetrically arranged positioning rods, which are semi-circular along their long axis. The center of the positioning rod is aligned with the axis of rotation of the second mounting plate. The upper end of the second mounting plate has a movable hole adapted to the size of the positioning rod, and the positioning rod is located within the movable hole. The end of the positioning rod is bent at ninety degrees laterally to provide a limiting part. A connecting rod is provided between the positioning rods, and a fixing rod is provided at the lower end of the positioning rod. A support rod is provided between the fixing rods, and the hydraulic device contacts the upper support rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model achieves a foldable blade shaft by using a second rotary tillage mechanism that rotates at both ends of a first mounting plate and drives the second mounting plate to rotate using hydraulic equipment on the mounting frame. Combined with the docking pyramid and pyramidal groove, it allows switching between two states. When moving the equipment in narrow roads or fields, operating the hydraulic equipment to retract the hydraulic rod will drive the second mounting plate upwards, allowing the second rotary tillage mechanism to fold up and retract, significantly reducing the overall width of the rotary tiller. This design successfully solves the technical problems of current rotary tillers with long blade shafts, such as poor flexibility during movement, inconvenient transportation, and even inability to pass through certain road sections due to size issues. It greatly expands the operating range of the rotary tiller and improves its adaptability in complex terrain.

[0013] 2. This utility model also features a support frame structure. The support frame provides reliable structural support for the equipment. The positioning rod is semi-circular along its long axis, and its center coincides with the rotation axis of the second mounting plate. The movable hole at the upper end of the second mounting plate is adapted to the positioning rod. When the second mounting plate rotates, the movable hole slides along the positioning rod, providing good positioning and guidance. At the same time, it limits the front and rear movement of the second mounting plate. The limiting part at the end of the positioning rod can effectively support the second mounting plate when the second rotary tillage mechanism is in operation, reducing the pressure on the hydraulic rod of the hydraulic equipment. In addition, the support rods between the fixed rods not only fix the positioning rod, but the upper support rod can also contact the hydraulic equipment and support its cylinder. These designs together enhance the structural stability of the equipment in working and folding states, reduce the wear of parts, and extend the service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention from a bottom view;

[0017] Figure 4 This is a schematic diagram of the second rotary tillage mechanism of this utility model;

[0018] Figure 5 This is a schematic diagram of the second cutter shaft structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the cutter shaft connection structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the support frame structure of this utility model;

[0021] Figure 8 This is a schematic diagram of one usage state of the present invention.

[0022] Explanation of the numbers in the diagram: 100, First rotary tillage mechanism; 101, First mounting plate; 102, Mounting frame; 1021, Connecting plate; 103, Drive box; 104, Hydraulic equipment; 105, Support frame; 1051, Positioning rod; 1052, Connecting rod; 1053, Fixing rod; 1054, Support rod; 1055, Limiting part; 106, First shaft fixing plate; 107, First cutter shaft; 1071, Pyramidal groove; 108, Baffle; 200, Second rotary tillage mechanism; 201, Second mounting plate; 2011, Movable hole; 202, Second shaft fixing plate; 203, Second cutter shaft; 2031, Connecting pyramid; 204, Mounting seat; 205, Rotary tillage blade. Detailed Implementation

[0023] like Figures 1 to 8 As shown, this utility model relates to a rotary tiller with a foldable blade shaft, including a first rotary tillage mechanism 100 and a second rotary tillage mechanism 200 disposed at both ends of the first rotary tillage mechanism 100. The first rotary tillage mechanism 100 includes a first mounting plate 101, a mounting frame 102 welded to the upper end of the first mounting plate 101, a connecting plate 1021 disposed at the front end of the mounting frame 102, and a drive box 103 disposed at the lower end of the mounting frame 102. The second rotary tillage mechanism 200 includes a second mounting plate 201 rotatably mounted at both ends of the first mounting plate 101. A hydraulic device 104 is symmetrically rotatably mounted on the upper end of the mounting frame 102. The end of the hydraulic rod of the hydraulic device 104 is rotatably connected to the upper end of the second mounting plate 201. A support frame 105 is symmetrically disposed on the upper end of the first mounting plate 101. This utility model achieves the folding of the cutter shaft by driving the second mounting plate 201 to rotate through the hydraulic device 104, which greatly reduces the width during transfer. The docking pyramid 2031 and the pyramid groove 1071 ensure power transmission, and the support frame 105 enhances stability and improves the working range and convenience.

[0024] Specifically, a rectangular opening is provided at the upper end of the first mounting plate 101, and the lower part of the drive box 103 extends from the rectangular opening to the bottom of the first mounting plate 101. When the equipment is working, the drive spindle is connected to the output shaft of the drive box 103 through a universal joint. The rotation of the drive spindle can drive the first cutter shaft 107 to rotate, thereby enabling rotary tillage.

[0025] Furthermore, baffles 108 are bolted to the front and rear ends of the first mounting plate 101 and the second mounting plate 201. A first shaft fixing plate 106 is symmetrically arranged at the lower end of the first mounting plate 101. A first cutter shaft 107 is rotatably mounted between the first shaft fixing plates 106. The middle position of the first cutter shaft 107 is located inside the drive box 103.

[0026] It is worth noting that a second shaft fixing plate 202 is symmetrically arranged at the lower end of the second mounting plate 201. A second cutter shaft 203 is rotatably mounted between the second shaft fixing plates 202. The length of the second cutter shaft 203 is the same as the length of the first cutter shaft 107. Both the first cutter shaft 107 and the second cutter shaft 203 are provided with mounting seats 204, and rotary tillage blades 205 are bolted to the mounting seats 204. The second shaft fixing plate 202 is used to install the second cutter shaft 203. When the first cutter shaft 107 rotates, it can drive the second cutter shaft 203 to rotate, and rotary tillage can be performed by the rotary tillage blades 205.

[0027] It is worth mentioning that the second cutter shaft 203 has a mating pyramid 2031 at one end near the first cutter shaft 107, and both ends of the first cutter shaft 107 have pyramidal grooves 1071, into which the mating pyramid 2031 is inserted. When the second rotary tillage mechanism 200 is folded downwards, the mating pyramid 2031 of the second cutter shaft 203 can be inserted into the pyramidal groove 1071. When the first cutter shaft 107 rotates, the second cutter shaft 203 can rotate under the action of the mating pyramid 2031 and the pyramidal groove 1071.

[0028] It is worth noting that the support frame 105 includes symmetrically arranged positioning rods 1051. The positioning rods 1051 are semi-circular along their long axis, and the center of the positioning rods 1051 is consistent with the axis of rotation of the second mounting plate 201. The upper end of the second mounting plate 201 is provided with a movable hole 2011 that matches the size of the positioning rods 1051. The positioning rods 1051 are located in the movable hole 2011. The end of the positioning rods 1051 is bent at ninety degrees laterally and is provided with a limiting part 1055. A connecting rod 1052 is provided between the positioning rods 1051. A fixing rod 1053 is provided at the lower end of the positioning rods 1051. A support rod 1054 is provided between the fixing rods 1053. The hydraulic device 104 is in contact with the support rod 1054 located above. When in operation, the second rotary tillage mechanism 200 is folded downwards. The positioning rod 1051 can position the second mounting plate 201 during rotation and limit its movement forward and backward. It can also assist the hydraulic rod of the hydraulic device 104, ensuring the service life of the hydraulic device 104. When the second rotary tillage mechanism 200 is in operation, the limiting part 1055 can support the second mounting plate 201, ensuring the stability of the tooling state of the second rotary tillage mechanism 200 and reducing the pressure on the hydraulic rod of the hydraulic device 104. The upper support rod 1054 can also support the cylinder of the hydraulic device 104. When the equipment is not in use, the hydraulic rod is shortened by the operation of the hydraulic device 104, at which time the second rotary tillage mechanism 200 can rotate upwards, thus allowing the second rotary tillage mechanism 200 to be folded, effectively reducing the width of the rotary tillage equipment.

[0029] Working Principle: This embodiment provides a rotary tiller with a foldable cutter shaft. In use, the equipment is first fixedly connected to a tractor or other traction device via the connecting plate 1021 at the front end of the mounting frame 102. When the equipment is in operation, the hydraulic rod of the hydraulic device 104 is extended, pushing the second mounting plate 201 to rotate downwards around the connecting shaft with the first mounting plate 101 until the second mounting plate 201 and the first mounting plate 101 are on the same plane. At this time, the mating pyramid 2031 of the second cutter shaft 203 near the end of the first cutter shaft 107 precisely inserts into the pyramidal grooves 1071 at both ends of the first cutter shaft 107. Simultaneously, the movable part at the upper end of the second mounting plate 201... The moving hole 2011 slides along the positioning rod 1051 of the support frame 105 to the limiting part 1055. The limiting part 1055 supports the second mounting plate 201, ensuring the stability of the working state of the second rotary tillage mechanism 200 and reducing the pressure of the hydraulic rod of the hydraulic device 104. Subsequently, the tractor's power output shaft is connected to the input shaft of the drive box 103 through a universal joint. The power is transmitted to the first cutter shaft 107 through the transmission structure inside the drive box 103, causing the first cutter shaft 107 to rotate at high speed between the first shaft fixing plate 106. Due to the insertion and engagement of the mating pyramid 2031 and the pyramid groove 1071, the rotation of the first cutter shaft 107 synchronously drives the second cutter shaft 203 on the second shaft. The rotation between the fixed plates 202 causes the rotary tillage blades 205, which are fixed on the first cutter shaft 107 and the second cutter shaft 203 via the mounting base 204, to rotate at high speed together. Drawn by the tractor, they cut into the soil, achieving rotary tillage operations that cut and pulverize the soil. The baffles 108 at the front and rear ends of the first mounting plate 101 and the second mounting plate 201 effectively block mud and debris splashed during the rotary tillage process. When it is necessary to move the equipment on narrow roads or in the field, the hydraulic device 104 is operated to retract the hydraulic rod, pulling the second mounting plate 201 upwards around the axis connecting it to the first mounting plate 101. At this time, the mating pyramid 2031 of the second cutter shaft 203 moves from the first cutter shaft 107... The pyramidal slot 1071 disengages, and the movable hole 2011 at the upper end of the second mounting plate 201 slides in the opposite direction along the positioning rod 1051 until the second mounting plate 201 rotates to a vertically upward state. At this time, the overall width of the rotary tiller is greatly reduced, making it easier to pass through narrow sections of road. At the same time, the support rod 1054 in the support frame 105 provides support for the cylinder of the hydraulic device 104, enhancing the structural stability of the device in the folded state. When rotary tillage is required again, simply reverse the operation of the hydraulic device 104 to rotate the second mounting plate 201 downwards and reset it, re-establishing the insertion and engagement of the pyramidal slot 1071 with the pyramidal slot, and the device can be restored to its working state to continue operation.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A rotary tiller with a foldable cutter shaft, characterized in that, The system includes a first rotary tillage mechanism (100) and a second rotary tillage mechanism (200) provided at both ends of the first rotary tillage mechanism (100). The first rotary tillage mechanism (100) includes a first mounting plate (101), a mounting frame (102) is welded to the upper end of the first mounting plate (101), a connecting plate (1021) is provided at the front end of the mounting frame (102), and a drive box (103) is installed at the lower end of the mounting frame (102). The second rotary tillage mechanism (200) includes a second mounting plate (201) rotatably mounted at both ends of the first mounting plate (101). A hydraulic device (104) is symmetrically rotatably mounted on the upper end of the mounting frame (102). The end of the hydraulic rod of the hydraulic device (104) is rotatably connected to the upper end of the second mounting plate (201). A support frame (105) is symmetrically provided on the upper end of the first mounting plate (101).

2. The rotary tiller with a foldable cutter shaft according to claim 1, characterized in that, The upper end of the first mounting plate (101) has a rectangular opening, and the lower part of the drive box (103) extends from the rectangular opening to the bottom of the first mounting plate (101).

3. The rotary tiller with a foldable cutter shaft according to claim 2, characterized in that, The front and rear ends of the first mounting plate (101) and the second mounting plate (201) are both bolted with baffles (108). The lower end of the first mounting plate (101) is symmetrically provided with a first shaft fixing plate (106). A first cutter shaft (107) is rotatably mounted between the first shaft fixing plates (106). The middle position of the first cutter shaft (107) is located inside the drive box (103).

4. A rotary tiller with a foldable cutter shaft according to claim 3, characterized in that, The lower end of the second mounting plate (201) is symmetrically provided with a second shaft fixing plate (202), and a second cutter shaft (203) is rotatably mounted between the second shaft fixing plates (202). The first cutter shaft (107) and the second cutter shaft (203) are both provided with mounting seats (204), and rotary tillage blades (205) are mounted on the mounting seats (204) by bolts.

5. A rotary tiller with a foldable cutter shaft according to claim 4, characterized in that, The second cutter shaft (203) is provided with a mating pyramid (2031) at one end near the first cutter shaft (107), and both ends of the first cutter shaft (107) are provided with pyramidal grooves (1071), and the mating pyramid (2031) is inserted into the pyramidal groove (1071).

6. A rotary tiller with a foldable cutter shaft according to claim 5, characterized in that, The support frame (105) includes symmetrically arranged positioning rods (1051). The positioning rods (1051) are semi-circular along their long axis. The center of the positioning rods (1051) is consistent with the axis of rotation of the second mounting plate (201). The upper end of the second mounting plate (201) is provided with a movable hole (2011) that matches the size of the positioning rods (1051). The positioning rods (1051) are located in the movable hole (2011). The end of the positioning rods (1051) is bent at ninety degrees laterally and provided with a limiting part (1055). A connecting rod (1052) is provided between the positioning rods (1051). A fixing rod (1053) is provided at the lower end of the positioning rods (1051). A support rod (1054) is provided between the fixing rods (1053). The hydraulic device (104) is in contact with the support rod (1054) located above.

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