Hydraulic folding rotary cultivator

Abstract

The utility model discloses a hydraulic folding type rotary cultivator which comprises a hydraulic folding suspension assembly, the hydraulic folding suspension assembly comprises a suspension frame, the two sides of the bottom of the suspension frame are hinged to a left rotary cultivator assembly and a right rotary cultivator assembly respectively, a gearbox is arranged in the suspension frame, and an input shaft of the gearbox is in transmission connection with a transmission shaft. The transmission shaft is connected with a power output shaft of a tractor, gearbox output shafts are arranged on the left side and the right side of the gearbox, the gearbox output shafts are in transmission connection with the left rotary cultivator assembly and the right rotary cultivator assembly through universal joints respectively, and a pair of folding oil cylinders is hinged to each of the left side and the right side of the suspension frame. The ends of piston rods of the folding oil cylinders on the two sides are hinged to the left rotary cultivator assembly and the right rotary cultivator assembly respectively, and the left rotary cultivator assembly and the right rotary cultivator assembly are folded through stretching and retracting of the folding oil cylinders. The width of the folded tractor is smaller than that of a tractor, so that the tractor is particularly suitable for field transfer operation and transportation transfer on rural roads; meanwhile, a safety mechanism is arranged, so that transportation is safe and convenient.

Description

Technical Field

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

[0002] With the adjustment of my country's agricultural industrial structure and land consolidation, the planting area of ​​a single piece of land has continued to increase, and agricultural production has developed towards scale and intensiveness. Small rotary tillage machines have low efficiency, high power consumption, and use a shallow tillage method, which makes the soil plow layer shallower and the plow bottom layer move upward, reducing the soil's moisture retention capacity. In severe cases, it causes soil erosion and affects the growth and development of crops. Therefore, under this background, large rotary tillers with wide width and deep plowing are replacing small rotary tillers to become the main force in field operations.

[0003] The current market rotary tillers have the following defects:

[0004] (1) Wide-width rotary tillers (over 3.6m) are difficult to transfer and inconvenient to transport by road;

[0005] (2) A single-speed cutter shaft is difficult to meet the tillage requirements of a variety of soils (plowed soil, sandy soil, clay soil, wasteland soil, reclaimed soil, etc.);

[0006] (3) The folding rotary tiller has no automatic mechanical safety device and is unsafe for road transportation;

[0007] (4) When the left and right rotary tillers of the folding rotary tiller are working, the height of the drag plate assembly is inconsistent, resulting in uneven soil after tillage.

[0008] Based on this situation, a hydraulic folding rotary tiller is needed to solve the above problems. Utility Model Content

[0009] The utility model aims to provide a hydraulic folding rotary tiller with large width, variable speed, no missed tillage, foldable hydraulic cylinder, safety mechanism, safe and convenient field transfer operation and high operation efficiency in view of the defects and shortcomings of the prior art.

[0010] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a hydraulic foldable rotary tiller, whose innovation lies in: comprising a hydraulic folding suspension assembly, a left rotary tiller component, a right rotary tiller component, a universal joint, a transmission shaft and a drag plate spring pressure rod component; the hydraulic folding suspension assembly comprises a suspension frame, the bottom two sides of the suspension frame are respectively hinged on the left rotary tiller component and the right rotary tiller component, a gearbox is arranged inside the suspension frame, the input shaft of the gearbox is connected to the transmission shaft, the transmission shaft is connected to the tractor power output shaft, the left and right sides of the gearbox are provided with gearbox output shafts, and the gearbox output shafts are respectively connected to the left and right sides of the gearbox. The left rotary tiller assembly and the right rotary tiller assembly are connected through a universal joint transmission, a pair of folding cylinders are hinged on the left and right sides of the suspension frame, and the piston rod ends of the folding cylinders on both sides are respectively hinged to the left rotary tiller assembly and the right rotary tiller assembly, and the left rotary tiller assembly and the right rotary tiller assembly are folded by the extension and contraction of the folding cylinders, a pair of safety cylinders are hinged on the top of the suspension frame, and safety hooks are arranged on the piston rod ends of the safety cylinders, and the safety hooks hook and fix the folded left rotary tiller assembly and the right rotary tiller assembly; the drag plate spring pressure rod assemblies are respectively located behind the hoods of the left rotary tiller assembly and the right rotary tiller assembly.

[0011] Furthermore, the left rotary tiller assembly and the right rotary tiller assembly have the same structure and both include a hood, a hinged plate, a hinged seat and a safety pin are respectively arranged on the top of the hood, the hinged plate is hinged to the piston rod end of the folding cylinder, the hinged seat is hinged to the suspension frame, the safety pin cooperates with the safety hook, a transmission box is arranged on the side of the hood, an input gear, an intermediate shaft, an intermediate gear, an output shaft and an output gear are respectively arranged in the transmission box, the intermediate gear is sleeved on the intermediate shaft, the output gear is sleeved on the output shaft, the input gear, the intermediate gear and the output gear are meshed and transmission connected, an input shaft is arranged in the input gear, the input shaft is transmission connected to the output shaft of the gearbox, the output shaft is transmission connected to the cutter shaft, a plurality of left curved knives and right curved knives are arranged on the cutter shaft, a cutter shaft bearing seat is arranged at the other end of the cutter shaft, and a drag plate spring pressure rod assembly is arranged on the front of the hood.

[0012] Furthermore, the drag plate spring pressure rod assembly includes four groups, which are respectively located on the hoods of the left rotary tiller assembly and the right rotary tiller assembly. The drag plate spring pressure rod assembly includes a bracket, in which the spring pressure rod is sleeved, a drag plate is arranged at the bottom of the spring pressure rod, and the drag plate is hinged on the hood.

[0013] Furthermore, a latch is provided on the drag plate of the left rotary tiller assembly, and a pin sleeve is provided on the drag plate of the right rotary tiller assembly. After the left rotary tiller assembly and the right rotary tiller assembly are unfolded, the latch is embedded in the pin sleeve for fixation.

[0014] Furthermore, an extension plate is provided on the side of the drag plate.

[0015] After adopting the above structure, the utility model has the following beneficial effects:

[0016] (1) The utility model can be matched with large and medium-sized tractors, and is easy to install and operate;

[0017] (2) The utility model is equipped with a manual transmission, and the machine is suitable for sand, clay and land reclamation operations;

[0018] (3) An extension plate is provided on the outside of the drag plate, so that the surface of the plowed ground is flat and seamless after being dragged; during operation, the latch and the pin sleeve make the left and right drag plates integrated into one, and the combined drag plate is flattened and has no seams in the middle;

[0019] (4) The utility model can be unfolded to a wide foldable rotary tillage machine, which greatly improves the machine's operating efficiency;

[0020] (5) The width of the utility model after folding is smaller than that of the tractor, and is particularly suitable for field operations and transportation transfers on rural roads; at the same time, a safety mechanism is provided, which makes transportation safe and convenient;

[0021] (6) The utility model is suitable for rotary tillage, soil crushing and leveling of wheat stubble, rice stubble, corn stubble, wasteland and the like, and has a good soil crushing effect and a flat surface after tillage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model after being unfolded;

[0023] Figure 2 It is a schematic diagram of the structure of the utility model after folding;

[0024] Figure 3 It is a side view of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the hydraulic folding suspension assembly in the utility model;

[0026] Figure 5 It is a front view of a left rotary tiller assembly or a right rotary tiller assembly in the utility model;

[0027] Figure 6 It is a left side view of the left rotary tiller assembly or the right rotary tiller assembly in the utility model;

[0028] Figure 7 It is a cross-sectional view of a left rotary tiller assembly or a right rotary tiller assembly in the utility model.

[0029] Description of reference numerals:

[0030] 1 hydraulic folding suspension assembly, 11 suspension frame, 12 gearbox, 13 folding cylinder, 14 safety cylinder, 15 safety hook, 2 left rotary tiller assembly, 21 machine cover, 22 hinged plate, 23 hinged seat, 24 safety pin, 25 transmission box, 26 input gear, 27 intermediate shaft, 28 intermediate gear, 29 output shaft, 210 output gear, 211 input shaft, 212 knife shaft, 213 left curved knife, 214 right curved knife, 215 knife shaft bearing seat, 3 right rotary tiller assembly, 4 universal joint, 5 transmission shaft, 6 drag plate spring pressure rod assembly, 61 bracket, 62 spring pressure rod, 63 drag plate, 64 latch, 65 pin sleeve, 66 extension plate. DETAILED DESCRIPTION

[0031] The utility model is further described below in conjunction with the accompanying drawings.

[0032] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0033] See also Figure 1-7A hydraulic folding rotary tiller comprises a hydraulic folding suspension assembly 1, a left rotary tiller assembly 2, a right rotary tiller assembly 3, a universal joint 4, a transmission shaft 5 and a drag plate spring pressure rod assembly 6; the hydraulic folding suspension assembly 1 comprises a suspension frame 11, the bottom two sides of the suspension frame 11 are respectively hinged on the left rotary tiller assembly 2 and the right rotary tiller assembly 3, a gearbox 12 is arranged inside the suspension frame 11, the input shaft of the gearbox 12 is connected to the transmission shaft 5, the transmission shaft 5 is connected to the tractor power output shaft, the left and right sides of the gearbox 12 are provided with gearbox output shafts, and the gearbox output shafts are respectively connected to the left rotary tiller assembly 2 and the right rotary tiller assembly 3 through the universal joint 4. The tiller assembly 3, a pair of folding cylinders 13 are hinged on the left and right sides of the suspension frame 11, and the piston rod ends of the folding cylinders 13 on both sides are hinged to the left rotary tiller assembly 2 and the right rotary tiller assembly 3 respectively, and the left rotary tiller assembly 2 and the right rotary tiller assembly 3 are folded by the extension and contraction of the folding cylinders 13, and a pair of safety cylinders 14 are hinged on the top of the suspension frame 11 respectively, and the piston rod ends of the safety cylinders 14 are provided with safety hooks 15, and the safety hooks 15 hook and fix the folded left rotary tiller assembly 2 and the right rotary tiller assembly 3; the drag plate spring pressure rod assembly 6 is respectively located behind the machine covers of the left rotary tiller assembly 2 and the right rotary tiller assembly 3. Specifically, the transmission shaft 5 is connected to the tractor power output shaft to obtain transmission power, and then the left rotary tiller assembly 2 and the right rotary tiller assembly 3 are driven through the gearbox 12 and the universal joint 4 to make them operate; the left rotary tiller assembly 2 and the right rotary tiller assembly 3 are in a working state when they are fully unfolded. When the folding rotary tiller is working, the operator operates the tractor hydraulic output handle, and the rodless chamber of the folding cylinder 13 is filled with oil (at this time, the safety cylinder 14 releases the safety hook 15 first), and the piston rod of the folding cylinder 13 is extended, driving the folded left rotary tiller assembly 2 and the right rotary tiller assembly 3 to the working (horizontal) position to realize rotary tillage of the soil (see Figure 1 ), the foldable rotary tillage machine with a large width after unfolding greatly improves the working efficiency of the machine; when it needs to be folded, the operator operates the tractor hydraulic output handle, the rod chamber of the folding oil cylinder 13 is filled with oil, and the piston rod of the folding oil cylinder 13 is retracted, respectively driving the left rotary tiller assembly 2 and the right rotary tiller assembly 3 to become a folded transportation state, at this time the safety oil cylinder 14 drives the safety hook 15 to hook the safety pin 24 on the left rotary tiller assembly 2 and the right rotary tiller assembly 3 respectively, playing a safety role (see Figure 2 ), the folded width is smaller than the width of the tractor, which is convenient for road transportation or field transfer; the gearbox 12 is a three-speed manual gearbox, which controls the rotation speed of the left rotary tiller assembly 2 and the right rotary tiller assembly 3, and is suitable for sandy soil, clay and land reclamation operations.

[0034] See also Figure 5-7The left rotary tiller assembly 2 and the right rotary tiller assembly 3 have the same structure, both including a hood 21, a hinge plate 22, a hinge seat 23 and a safety pin 24 are respectively arranged on the top of the hood 21, the hinge plate 22 is hinged to the piston rod end of the folding cylinder 13, the hinge seat 23 is hinged to the suspension frame 11, the safety pin 24 cooperates with the safety hook 15, a transmission box 25 is arranged on the side of the hood 21, and an input gear 26, an intermediate shaft 27, an intermediate gear 28, an output shaft 29 and an output gear 210 are respectively arranged in the transmission box 25, and the intermediate shaft 27, the intermediate gear 28, the output shaft 29 and the output gear 210 are respectively arranged in the transmission box 25. The intermediate gear 28 is sleeved on the intermediate shaft 27, the output gear 210 is sleeved on the output shaft 29, the input gear 26, the intermediate gear 28 and the output gear 29 are meshed and connected, an input shaft 211 is arranged in the input gear 26, the input shaft 211 is connected to the output shaft of the gearbox, the output shaft 211 is connected to the cutter shaft 212, a plurality of left curved blades 213 and right curved blades 214 are arranged on the cutter shaft 212, a cutter shaft bearing seat 215 is arranged at the other end of the cutter shaft 212, and a drag plate spring pressure rod assembly 6 is arranged on the front of the hood 21. The input shaft 211 is connected to the output shaft of the gearbox, thereby driving the input shaft 211 to rotate, and then driving the output shaft 29 to rotate through the input gear 26, the intermediate gear 28 and the output gear 210 in turn, thereby driving the cutter shaft 212 to rotate, and finally driving the left curved blade 213 and the right curved blade 214 to perform rotary tillage on the soil.

[0035] In this embodiment, the drag plate spring pressure rod assembly 6 includes four groups, which are respectively located on the hoods 21 of the left rotary tiller assembly 2 and the right rotary tiller assembly 3. The drag plate spring pressure rod assembly 6 includes a bracket 61, a spring pressure rod 62 is sleeved in the bracket 61, and a drag plate 63 is arranged at the bottom of the spring pressure rod 62, and the drag plate 63 is hinged on the hood 21. The spring pressure rod 62 applies pressure to the drag plate 63 to ensure that the drag plate is always in contact with the ground, the height is consistent, and the soil after tillage is flat; there are two groups of drag plate spring pressure rod assemblies 6 on the left rotary tiller assembly 2 and the right rotary tiller assembly 3, respectively, to ensure that the force is evenly applied.

[0036] In this embodiment, the drag plate located at the left rotary tiller assembly is provided with a latch 64, and the drag plate located at the right rotary tiller assembly is provided with a pin sleeve 65. After the left rotary tiller assembly and the right rotary tiller assembly are unfolded, the latch 64 is embedded in the pin sleeve 65 for fixing. During operation, that is, after the left rotary tiller assembly 2 and the right rotary tiller assembly 3 are unfolded, the latch 64 is embedded in the pin sleeve 65, so that the left and right drag plates are combined into one, forming a combined drag plate, and the combined drag plate has no seams in the middle after being flattened; the four sets of drag plate spring pressure rod assemblies 6 press the left and right drag plates connected as one, and the combined dragging flattens the ground surface, and the dragged ground surface is flat and has no seams.

[0037] In this embodiment, an extension plate 66 is provided on the side of the drag plate 63. The extension plate 66 is provided on the outer side of the drag plate 63 so that the surface of the cultivated land is flat and seamless after being dragged.

[0038] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A hydraulic folding rotary tiller, characterized in that: The tractor comprises a hydraulic folding suspension assembly, a left rotary tiller assembly, a right rotary tiller assembly, a universal joint, a transmission shaft and a drag plate spring pressure rod assembly; the hydraulic folding suspension assembly comprises a suspension frame, the bottom two sides of the suspension frame are respectively hinged on the left rotary tiller assembly and the right rotary tiller assembly, a gearbox is arranged inside the suspension frame, the input shaft of the gearbox is connected to the transmission shaft, the transmission shaft is connected to the tractor power output shaft, the left and right sides of the gearbox are provided with gearbox output shafts, and the gearbox output shafts are respectively connected to the left rotary tiller assembly and the right rotary tiller assembly through universal joints. A pair of folding cylinders are hinged on the left and right sides of the suspension frame, and the piston rod ends of the folding cylinders on both sides are hinged to the left rotary tiller assembly and the right rotary tiller assembly respectively, and the left rotary tiller assembly and the right rotary tiller assembly are folded by the extension and contraction of the folding cylinders, and a pair of safety cylinders are hinged on the top of the suspension frame respectively, and safety hooks are arranged on the piston rod ends of the safety cylinders, and the safety hooks hook and fix the folded left rotary tiller assembly and the right rotary tiller assembly; the drag plate spring pressure rod assemblies are respectively located behind the hoods of the left rotary tiller assembly and the right rotary tiller assembly.

2. A hydraulic folding rotary tiller according to claim 1, characterized in that: The left rotary tiller assembly and the right rotary tiller assembly have the same structure and both include a hood. A hinge plate, a hinge seat and a safety pin are respectively arranged on the top of the hood. The hinge plate is hinged to the piston rod end of the folding cylinder, the hinge seat is hinged to the suspension frame, and the safety pin cooperates with the safety hook. A transmission box is arranged on the side of the hood. An input gear, an intermediate shaft, an intermediate gear, an output shaft and an output gear are respectively arranged in the transmission box. The intermediate gear is sleeved on the intermediate shaft, and the output gear is sleeved on the output shaft. The input gear, the intermediate gear and the output gear are meshed and connected in transmission. An input shaft is arranged in the input gear, and the input shaft is transmission-connected to the output shaft of the gearbox. The output shaft is transmission-connected to a cutter shaft. A plurality of left curved knives and right curved knives are arranged on the cutter shaft. A cutter shaft bearing seat is arranged at the other end of the cutter shaft, and a drag plate spring pressure rod assembly is arranged on the front of the hood.

3. A hydraulic folding rotary tiller according to claim 1 or 2, characterized in that: The drag plate spring pressure rod assembly includes four groups, which are respectively located on the hoods of the left rotary tiller assembly and the right rotary tiller assembly. The drag plate spring pressure rod assembly includes a bracket, in which the spring pressure rod is sleeved, and a drag plate is arranged at the bottom of the spring pressure rod, and the drag plate is hinged on the hood.

4. The hydraulic folding rotary tiller according to claim 3, characterized in that: The drag plate located at the left rotary tiller assembly is provided with a latch, while the drag plate located at the right rotary tiller assembly is provided with a pin sleeve. After the left rotary tiller assembly and the right rotary tiller assembly are unfolded, the latch is embedded in the pin sleeve for fixing.

5. The hydraulic foldable rotary tiller according to claim 3, characterized in that: An extension plate is arranged on the side of the dragging plate.

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