81 results about "Disc harrow" patented technology

An articulating and locking mechanism of agricultural implement chassis is disclosed, intended for disc harrows and other implements with great working width, which are characterized by articulation to reduce the total width so as to facilitate transportation and storage, constituted of a main structure or chassis (1), central disc gang chassis (2), lateral and articulating disc gang chassis (3), with arrangements of vertical plates or extensions (4 and 5) welded and joined by shafts (6) for articulation by means of hydraulic cylinders (7), equipped with locking mechanism made up of hydraulic cylinders (8), locking and unlocking actuators (9, 9A), locks (12, 12A), coupling shafts (13, 13A) inserted in sleeves (14, 14A) and joined to the vertical closure plates (15) of the inner ends of the articulating chassis (3). Locking flanges (17) welded to the central chassis (2) form a quick closing action with the locks (12, 12A) providing rigidity in the locking between said rigid and articulating chassis during the implement's field operation.

A disc harrow has a frame and a plurality of earth working discs. Each disc has a central aperture for attachment to a gang shaft. A mount attaches the gang shaft to the underside of the frame and has bearings to permit rotation of the shaft in response to forward movement of the disc harrow. The mount includes a first structural member, a second structural member and a resilient spring connected between the two members. In operation, upon striking of an obstacle by the discs, the gang shaft is permitted to upwardly deflect by the mount to prevent damage to the disc harrow. The second structural member has first and second portions with aligned longitudinal axes. The first and second portions are rotationally connected to permit rotation of the second portion in response to an angular moment applied to the second portion by deflection of the gang shaft. The rotational connection permits the bearing to automatically maintain a preferred alignment with the gang shaft during deflection, thereby preventing damage to the bearing.

A disc harrow composed of one or more disc gangs has a subframe coupled to the disc gangs to move the disc gangs in response to variations in farmland terrain to limit the impact of ground variation when encountered during the harrowing process. When the obstruction is cleared, the subframe automatically returns the disc gangs to their pre-obstruction position. In addition to reducing the potentially-damaging impact of obstructions, the subframe also maintains a more consistent reel depth during undulations or changes in the farmland terrain, such as during harrowing of slopes or unleveled fields such as valleys, near waterways, and along fence rows.

A traveling leaf pulling mechanism is applicable to operating with an operation machine for farmlands or ridges with residual sugarcane leaves after sugarcane is harvested and mainly comprises fixing blocks of connecting sleeves, 7-shaped shafts, T-shaped sleeves, adjusting blocks of vertical tubes of connecting rods, adjusting fixing plates, disc harrows, bearing blocks of connecting shaft seats and connecting shafts. The fixing blocks of the connecting sleeves, the 7-shaped shafts, the T-shaped sleeves, the adjusting blocks of the vertical tubes of the connecting rods, the adjusting fixing plates, the disc harrows, the bearing blocks of the connecting shaft seats and the connecting shafts are respectively symmetrically fixed to a left suspension beam and a right suspension beam at the rear of a tractor and are connected with one another correspondingly. The traveling leaf pulling mechanism is simple, compact and practical in structure.

A disc harrow implement has gang assemblies each having aligned disc gangs carried by a support bar. Each disc gang has disc blades spaced along an axis of the disc gang. The disc gangs of each gang assembly are coaxially aligned to create a line of substantially equally spaced disc blades. A plugging detection system alerts an operator if one or more of the disc gangs are rotating at a rotational speed that is slower than rotational speeds of the remaining disc gangs. The plugging detection system includes a gang rotation sensor for each of disc gangs. Each gang rotation sensor is configured to measure the rotational speed of the connected disc gang. A control module compares the rotational speed of each disc gang to the rotational speed of the disc gangs and generates an output that indicates when a disc gang is rotating more slowly that the other disc gangs.

The invention provides a variable-curvature soil-desorption/resistance-reduction disc harrow. The variable-curvature soil-desorption/resistance-reduction disc harrow comprises a disc harrow body which is of an integrated structure and uniform in thickness; an assembly part for connecting with a power device is arranged at the center of the disc harrow body; a cutting blade for breaking soil is arranged at the outer peripheral surface of the disc harrow body; disconnected circular-shaped cutting edges are evenly distributed on the cutting blade; the two convex and concave surfaces, arranged oppositely, of the disc harrow body are an outer soil contacting curved surface and an inner soil contacting curved surface, respectively; the inner soil contacting curved surface is a curved surface obtained based on 360-degree continuous rotating movement of a lead curve around the center of the disc harrow body, and the lead curve conforms to the equation f(x)=0.0008x4-0.0406x3+0.7596x2-7.2044x+0.4422, wherein the numerical area of x is within the range of 0-18. The variable-curvature soil-desorption/resistance-reduction disc harrow has the advantages that the variable-curvature inner soil contacting curved surface is attached on the disc harrow so that the contact probability of soil particles with the surface of the disc harrow is reduced, and the resistance and the adhesion of the soil to the surface of the disc harrow are decreased.

The invention discloses a novel folding disc harrow which comprises a disc harrow section and spacing pipes. The novel folding disc harrow is characterized in that the disc harrow section is composed of a plurality of disc harrow blades which are loaded on a square shaft, an interval is kept between two adjacent disc harrow blades by virtue of one spacing pipe, a fixing hole is formed in the center of each disc harrow blade, small holes are distributed at the periphery of each fixing hole, radial concave slots are formed in the periphery of the disc harrow, radial convex slots are formed in the periphery of the disc harrow, intervals are kept between the concave slots and the convex slots, and a circular blade part is arranged at the edge of the disc harrow. The novel folding disc harrow has the characteristics of simple structure, strong manufacturability and good rigidity.

The invention discloses a medium-sized disc harrow convenient to adjust. The disc harrow comprises a harrow frame, a suspending lug support, adjustment screw rod assemblies, a front angle adjustment rod, a rear angle adjustment rod, independent harrow group assemblies, adjustment blocks and harrow pieces; a suspension mechanism is welded to the harrow frame, the independent harrow group assembliesin a row shape are arranged on front and rear beams of the harrow frame, the adjustment screw rod assemblies are movably connected to a side beam of the harrow frame and hinged to one end of the front angle adjustment rod and one end of the rear angle adjustment rod, the adjustment blocks are hinged to the outer walls of the front and rear angle adjustment rods, and each independent harrow groupassembly comprises a vertical column, a clamping member and a hinge base, wherein the top of the vertical column is fixed in the harrow frame through the clamping member; the adjustment blocks are welded to side beams of the vertical columns, the hinge bases are fixed to the bottoms of the vertical columns through screws, and the harrow pieces are arranged in the hinge bases. According to the discharrow, by adjusting screw rods in pulling rod assemblies, the front and rear angle adjustment rods are pulled to move, angles of the harrow pieces of the harrow group assemblies are easy and convenient to adjust, and manpower is saved.

The invention discloses a high-yielding planting machine for peanut wide-ridge planting. The machine includes a frame, a disc harrow opener, a laminating machine and a banking machine. The disc harrow opener is arranged at the front end of the frame; the laminating machine is arranged in the middle of the frame; a ground cover disc is arranged at the end of the frame; the front side of the disc harrow opener is provided with a sprinkler; a fertilizer bucket and a seeder are arranged between the disc harrow opener and the laminating machine in turn; a driving wheel is arranged between the fertilizer bucket and the seeder; both sides of the laminating machine are provided with a drug spraying device; the banking machine is arranged between the laminating machine and the ground cover disc; a driven wheel is arranged between the ground cover disc and the banking machine. The original two-ridge tillage is upgraded to three-ridge tillage, so as to effectively improve the efficiency of sowing, solve the problems of matching of a two-ridge peanut seeder with the local agricultural machinery, and the difficulty in promotion, and improve the land utilization. The seeder and the laminating machine are connected to reduce manual operation, and the structure is simple and easy to use, thereby effectively saving manpower and time.

The invention relates to the field of agricultural equipment, in particular to a straw throwing and burying combined machine. The combined machine comprises a burying device (1), a hanging device (3),a throwing device (9) and a power transmission device (12). A vertical rotation mode is adopted by the throwing device (9) of the combined machine according to a tedding machine principle, and underthe action of centrifugal force, straw is thrown to the two sides; air flow is formed between adjacent throwing mechanisms (14), so that the straw throwing range is further expanded. When the combinedmachine goes to the field once, straw throwing work and straw burying work can be completed at the same time; meanwhile, the burying device (1) at the rear end of the combined machine can be removedso that separate straw throwing operation can be achieved, and moreover, combined operation of the throwing device (9) and a land preparation machine without power drive, such as a disc plough and a disc harrow, can be achieved through adjustment, the number of times for the machine to go to the field is reduced, and the energy consumption is reduced.

A disc harrow composed of one or more disc gangs has a subframe coupled to the disc gangs to move the disc gangs in response to variations in farmland terrain to limit the impact of obstructions when encountered during the harrowing process. When the obstruction is cleared, the subframe automatically returns the disc gangs to their pre-obstruction position. In addition to reducing the potentially-damaging impact of obstructions, the subframe also maintains a more consistent reel depth during undulations or changes in the farmland terrain, such as during harrowing of slopes or unleveled fields such as valleys, near waterways, and along fence rows.

The invention discloses a dragging type middle-sized disc harrow. The dragging type middle-sized disc harrow comprises a front harrow set and a rear harrow set, wherein hinging arms extending to the middle are fixed to the same ends of the front harrow set and the rear harrow set, the top ends of the two hinging arms are hinged through a rotary shaft, a longitudinal beam is arranged between the front harrow set and the rear harrow set, the front end of the longitudinal beam is hinged to the front harrow set, a plurality of positioning holes are formed in the rear middle portion of the longitudinal beam, and an adjusting pin is arranged on the rear harrow set; two connecting plates are arranged on the front side of the front harrow set in a relatively fixed mode, and the two connecting plates are hinged to a traction assembly located in front of the connecting plates. Due to the fact that the front harrow set and the rear harrow set are hinged together, deflection adjustment is convenient and quick, time and labor are saved, and efficiency is extremely high. In work, a tractor is in one-point dragging connection with a harrow body, the influence of swinging of the tractor on a harrow disc and the harrow body is reduced, and then the service life of a whole set of equipment can be prolonged; when the disc harrow is transported in an idle state, the whole device is fixed to the tail of the tractor safely and firmly through a three-point suspension mechanism formed by a suspension hole and two suspension pins.

The invention discloses a method for manufacturing a thin-wall plough disc harrow blade. The method comprises the following steps that a blank piece of the thin-wall plough disc harrow blade is fixedon a positioning disc with an arc-shaped hole, so that a to-be-ground arc-shaped notch of the blank piece is overlapped with the arc-shaped hole; a grinding wheel, located on one side of the positioning disc, of a grinding device is used for performing grinding treatment on the to-be-ground arc-shaped notch of the blank piece so that the to-be-ground arc-shaped notch can be ground into a crescentcutting edge; and the blank piece is the thin-wall disc harrow piece blank piece which is formed by stamping, and the edge of the disc harrow piece blank piece is provided with the to-be-ground arc-shaped notch. According to the method for manufacturing the thin-wall plough disc harrow blade, the manufacturing process is simple, convenient and rapid, the cutting edge of the machined disc harrow blade is sharp, the production efficiency is remarkably improved; and in addition, the invention further provides equipment used for the method.