187 results about "Agricultural tractor" patented technology

An apparatus for operating a load-controlled hydraulic supply of an agricultural tractor includes a hydraulic pump which is adjustable with respect to the displacement volume for supplying pressurized hydraulic fluid, a proportional valve which is electrically actuatable, a primary hydraulic consumer to carry out a superordinate hydraulic function and to be directly connected to a conveying outlet of the hydraulic pump, a secondary hydraulic consumer to carry out a subordinate hydraulic function and to be connected to the conveying outlet of the hydraulic pump via the proportional valve, and a control unit configured to move the proportional valve into a closed valve position when the control unit recognizes that at least one of a required power of the primary and secondary hydraulic consumers exceeds the conveying capacity of the hydraulic pump and the subordinate hydraulic function of the secondary hydraulic consumer is inactive.

An agricultural tractor includes a vehicle frame, and a front housing supported by the vehicle frame. The front housing includes, a fixed housing portion fixed to the vehicle frame, a movable housing portion supported by the vehicle frame or the fixed housing portion and being openable and closeable.

The present disclosure relates to an agricultural tractor. In an agricultural tractor according to the present disclosure, a first injection hole for injecting fuel is arranged on a first fender side, and a second injection hole for injecting cleaning fluid is arranged on a second fender side. According to the present disclosure, effects are achieved in that a design with the aesthetics of a symmetrical balance is enabled and the center of gravity can be stably maintained.

The invention discloses an agricultural tractor visual positioning method and system, and belongs to the technical field of agricultural tractor visual positioning, and the method comprises the steps: extracting the multi-scale features of a farmland scene image, and carrying out the feature fusion, and obtaining the multi-scale fusion features; performing adaptive weighting on the multi-scale fusion feature map to generate a final feature map so as to obtain a feature point probability heat map and a feature point descriptor; extracting coordinates and detection confidence of the feature points according to the feature point probability heat map; when the detection confidence of the candidate feature points meets a confidence threshold requirement, matching the descriptors of the candidate feature points with the descriptors of the feature points of the adjacent frames in space to obtain matching pairs; and calculating according to the coordinates of the candidate feature points in the matched pairs, the coordinates of the feature points of the adjacent frames and the internal reference of the image acquisition equipment, and outputting the real-time pose of the tractor. According to the method, the spatial distribution of the feature points can be optimized, so that the discrimination is stronger, and the robustness and the positioning precision of the feature points in a farmland environment are improved.

An attachment (1) for attaching to a towbar (3) of a towable apparatus (5), for example, a mower for hitching the towable apparatus (5) to either an agricultural tractor or a road vehicle comprises a mounting shaft (10) for securing to the towbar (3), and carrying a first gearbox (12). A second gearbox (14) is pivotally coupled to the first gearbox (12) about a vertical pivot axis (15) through which drive is transmitted from the second gearbox (14) to the first gearbox (12). A carrier housing (24) is rigidly secured to the second gearbox (14) and carries a first hitch (30) for hitching to a complementary hitch mechanism of a road vehicle, and a second hitch (38) for coupling a tractor (7). The second gearbox (14) is pivotal relative to the first gearbox (14) about the main pivot axis (15) between a first state with the first hitch (30) ready for hitching to the road vehicle, and a second state with the second hitch (38) ready for hitching to the tractor (7).

A load-controlled hydraulic supply for an attachment attached to an agricultural tractor includes a hydraulic high-pressure source providing a volume flow in a supply line, a return line leading to a hydraulic reservoir, and a load-indicating line connected to a device for pressure limiting. The volume flow is adjusted based on pressure feedback prevailing at the load-indicating line.

The invention belongs to the technical field of agricultural tractors, and particularly relates to an agricultural tractor intelligent fault diagnosis system and method based on the Internet of Things, and the system comprises a sensor assembly, a data collection module, a wireless transmission module, a cloud server, and a user terminal. The components are combined to form a component installation stage, a preliminary debugging stage and a comprehensive debugging stage, and system operation is carried out through the three stages. The sensor assembly comprises a vibration sensor, a temperature sensor and a smoke sensor. According to the method, fault detection and repair are carried out in each key stage of the assembly process, so that the assembly quality of each part is ensured; service is provided for final vehicle off-line fault diagnosis, and it is ensured that detection is more efficient and accurate after vehicle assembly is completed; full-cycle fault diagnosis is realized, and the precision and efficiency of fault detection are improved; the rework rate and the maintenance cost are reduced, and the reliability and the service life of the whole vehicle are improved.

The invention relates to the technical field of mechanical intelligent control, in particular to an agricultural tractor body leveling control method and system, and the method comprises the following steps: constructing a data collection device of an agricultural tractor, and obtaining the inclination angle of the agricultural tractor body according to the data collection device; a multi-degree-of-freedom cooperative decoupling control framework is established, and a preliminary leveling control instruction of the agricultural tractor is obtained in combination with the vehicle body inclination angle; obtaining a terrain discrete elevation point set of the agricultural tractor, and constructing a terrain elevation prediction model according to the terrain discrete elevation point set; based on the preliminary leveling control instruction, utilizing the terrain elevation prediction model to obtain an optimized leveling control instruction of the agricultural tractor; and the vehicle body inclination angle is regulated and controlled according to the optimized leveling control instruction, and vehicle body leveling of the agricultural tractor is achieved. The operation stability, the adaptability and the intelligent level of the agricultural tractor in the unstructured terrain are improved.

The cultivator for sweet potato planting comprises a supporting frame dragged to the tail of an agricultural tractor, a first transmission case is installed in the middle of the supporting frame, second transmission cases are installed on the two sides of the supporting frame, and the first transmission case and the second transmission cases are connected through universal shafts. A soil turning claw is driven by the second transmission case corresponding to the bottom of the support frame, a furrow opener is mounted on the support frame corresponding to the rear side of the soil turning claw, the furrow opener comprises two side turning plates, and the free ends of support rods corresponding to the two side turning plates are adjustably fixed through bolts and are used for adjusting the opening angles of the two side turning plates. The furrow opener can be adjusted in a lifting mode, meanwhile, the distance between the turning plates on the two corresponding sides can be adjusted through the supporting rods, the ends of the supporting rods are fixed through the bolts after adjustment, the opening width of the turning plates can be adjusted, and different planting requirements are met.

The invention relates to the technical field of multi-way valve hydraulic systems, in particular to a load-sensitive multi-way valve hydraulic system of an agricultural tractor. Comprising an intelligent control module, a load-sensitive variable pump, a load-sensitive multi-way valve, an execution element, a pressure sensor, a temperature sensor, a flow sensor, a temperature compensation and self-adaptive control system and an intelligent control system and intelligent overflow valve design and control optimization system. Wherein the flow and the pressure of the load-sensitive variable pump are adjusted according to the load requirement of the system. Through the optimal design of a traditional load-sensitive multi-way valve hydraulic system, pressure loss caused by an oil duct damping hole is reduced, the influence of low temperature on the system in a cold environment is solved, the response speed and control precision of the system are improved, and the service life of the system is prolonged. A more efficient oil duct structure, intelligent overflow valve control, a temperature compensation mechanism and a self-adaptive control strategy are adopted, and efficient and stable operation of the hydraulic system under various working conditions is ensured.

The utility model is suitable for the technical field of agricultural tractor transmission shaft connecting piece production, and provides an agricultural tractor transmission shaft connecting piece production reaming device which comprises a bottom plate, a plurality of first vertical plates and a plurality of second vertical plates. The first screw rods are rotationally mounted on the plurality of first vertical plates; the first servo motor is fixedly mounted on the bottom plate and is connected with the first screw rod; the displacement plate is arranged on the first screw rod in a threaded and sleeving manner; and the multiple reaming machining mechanisms are arranged on the displacement plate, and the multiple reaming machining mechanisms are used for conducting reaming machining on the multiple agricultural tractor transmission shaft connecting pieces. According to the broaching device for agricultural tractor transmission shaft connecting piece production, broaching machining can be conducted on multiple agricultural tractor transmission shaft connecting pieces at the same time, and the multiple transmission shaft connecting pieces of different sizes can be clamped and fixed in the broaching machining process, so that the machining precision is improved; and meanwhile, the reamer is convenient to disassemble and replace.

A method for assisting a coupling procedure at an agricultural implement interface includes determining via a control unit whether a set-down procedure associated with unhitching the implement is being executed, determining cartographically via the control unit in communication with a position detection unit a set-down location of the implement and a driving trajectory travelled by the agricultural tractor from the set-down location along a defined route, storing via the control unit the set-down location and the driving trajectory as an associated dataset in a memory unit together with type information about the implement provided by an information unit, retrieving via the control unit the associated dataset to re-hitch the implement, and guiding via the control unit the agricultural tractor back from a defined start position along the driving trajectory to the set-down location by issuing associated control commands.

An articulated coupling arrangement for a three-point power lift of an agricultural tractor includes a lifting arm articulated to be raised and lowered by a lifting mechanism, a lifting spindle connected to a free end of the lifting arm in a bearing position for pivoting actuation of a lower link having a coupling arrangement for reversible attachment of an attachment interface, first and second opposing fork cheeks with receiving bores flush along a joint axis being formed on the lifting spindle, through which receiving bores a retaining bolt is guided, and a bearing ball guided on the retaining bolt being supported on a stop formed on the retaining bolt such that the bearing ball can be braced by a fastening element engaging the retaining bolt with respect to the first fork cheek in a rotationally conjoint manner in a predefined coupling position between the first and second fork cheeks.

The invention discloses an electronic traction control method and device of an extended-range tractor and a storage medium in the technical field of agricultural tractors. The method comprises the steps that the final output vehicle speed is calculated according to the first positioning speed, the second running speed, the third estimation speed and the fourth motor speed; calculating actual slip rates of the four wheels according to the final output vehicle speed and the wheel speeds of the four wheels; based on the current road adhesion coefficient obtained in real time and a pre-constructed road mu-lambda characteristic database, the optimal slip rate of the four wheels is obtained; calculating a slip rate difference value and a slip rate difference value change rate based on the optimal slip rate and the actual slip rate; when the actual slip rates are all smaller than the preset minimum slip rate, torque required by a driver is output; and when the change rate of the slip rate difference value exceeds a preset change rate threshold value, outputting a correction torque output by a fuzzy PID control framework. The technical problem of working condition limitation caused by dependence on tilling depth adjustment in the prior art can be solved.

The invention discloses an intelligent control method for a multi-fuel-tank fuel system of an agricultural tractor, and relates to the technical field of agricultural machinery fuel control, and the method comprises the following steps: under the control of a processor, taking an ignition switch state as a trigger: obtaining a first environment temperature during power-on, and outputting a fuel pipeline switching valve opening / closing signal in combination with the fuel quantity of a low-grade fuel tank; pre-selecting an oil path; after starting, the heating electromagnetic valve is opened and closed according to the temperature of cooling liquid, and the high-grade fuel tank is switched back based on the temperature of fuel oil, so that heating and closed-loop management of an oil path are realized; and when the power is off, taking a second environment temperature, forcibly switching to a low-grade oil way when the temperature is less than or equal to 4 DEG C, operating for a set time, and then flameout, so that the system retains low-grade fuel oil. By automatically switching fuel oil and heating control, reliable starting and economical operation of the tractor in a low-temperature environment can be ensured, low-grade fuel oil is reserved in a pipeline after flameout, and difficulty in restarting is avoided.

The invention discloses a power gear shifting transmission mechanism and a gearbox of an agricultural tractor chassis. The power gear shifting transmission mechanism comprises a first transmission shaft, a first hydraulic wet clutch, a second transmission shaft and a second hydraulic wet clutch. The first transmission shaft comprises a front shaft and a rear shaft, a first gear I, a first gear II, a first gear III and a first gear IV are sequentially arranged on the first transmission shaft from front to back, and the first gear I is arranged on the front shaft; a second first gear, a second second gear and a second third gear are arranged on a rotating shaft of the first hydraulic wet clutch from front to back, the second first gear and the second second gear are meshed with the first first gear and the first second gear respectively, and the second third gear is connected with the first fourth gear in a meshed mode. According to the invention, the first hydraulic wet clutch and the second hydraulic wet clutch are used for respectively controlling the gears above to rotate so as to control the speed change and gear shifting of the gearbox, so that the continuity of power output of the tractor is ensured, and the working efficiency is effectively improved.

A tire analysis method and system for determining characteristic parameters of an agricultural tractor provided with two front wheels supporting two front tires and with two rear wheels supporting two rear tires. A first rotation sensor is mounted on a first wheel, a second rotation sensor is mounted on a second wheel; the agricultural tractor is driven along a straight path; while driving the agricultural tractor along the straight path, the total number of revolutions made by the first wheel and by the second wheel are measured; and at least one characteristic parameter is determined using the total number of revolutions made by the first wheel and by the second wheel.

The utility model relates to agricultural equipment for improving edible and medicinal fungus cultivation soil, and belongs to the technical field of edible (medicinal) fungus cultivation. The agricultural tractor mainly comprises a material bin and a liquid medicine tank which are both mounted on a frame at the rear end of the agricultural tractor, a cloth conveying belt is mounted at the bottom of the material bin, a liquid medicine spraying device is mounted at the bottom of the frame and connected with the liquid medicine tank through a booster pump, and a ploughing device is mounted at the tail end of the frame. The agricultural tractor walks along edible (pesticide) fungus planting ridges, materials used for improving soil in the material bin are evenly laid on the ridges through the material distribution conveying belt, a soil improvement agent in the liquid medicine tank is sprayed on the ridges through the liquid medicine spraying device, ploughing and mixing are conducted through the ploughing device, even stirring is guaranteed, and the soil improvement effect is guaranteed. The growth of edible (medicinal) fungi can be better promoted; and the working efficiency is improved, the labor intensity is reduced, and the labor cost is reduced.

1. Name of the product under this design: agricultural tractor. 2. Purpose of this design product: for agricultural machinery. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the key points of the design: 3D drawing of Design 1. 5. Designate Design 1 as the base design.

In a tillage implement for being towed by an agricultural tractor across ground to be towed and having a main frame supporting a plurality of tillage units thereon in which each tillage unit includes a disc supporting arm mounted on the main frame, disc mounting assemblies support respective tillage discs on the disc supporting arms. Each assembly includes a mounting body forming a socket therein and a shaft partly received within the socket so as to support a tillage disc on a hub rotatable on a portion of the shaft protruding from the mounting body. The shaft includes a tapered shaft section received within a tapered socket section in the socket of the mounting body to securely and releasably mount the shaft relative to the mounting body.

An agricultural tractor mounting assembly comprising a toolbar engaged with a first implement engaging a soil subsurface and also equipped with a carrying tool for engaging another implement. The carrying tool may include hydraulic cylinders and hydraulic charged accumulators which lift, suspend, and support implements behind a toolbar engaged to a tractor. The implement engaging the soil and the carrier tool may be engaged to the toolbar of the tractor mounting assembly which is engaged to the tractor.

The invention relates to the technical field of agricultural machinery, in particular to a gearbox capable of outputting power front and back and a small agricultural tractor with the gearbox, the gearbox comprises an input shaft for inputting engine power and a variable shaft, and the variable shaft is sequentially provided with an auxiliary gear shifting mechanism and an auxiliary main gear shifting gear set; a rear axle output shaft is arranged on the coaxial line of the intermediate shaft; comprising a power output shaft and a front power output shaft, and the front power output shaft comprises a front power gear. Through cooperation of the input shaft, the variable-speed shaft, the intermediate shaft and the reverse gear set and reasonable layout of the gear shafts, multi-gear speed change is achieved, transmission to the variable-speed shaft, the power output shaft and the reverse gear set is achieved through the arrangement of the intermediate shaft, one-shaft multi-transmission is achieved, the space of the gear box is greatly reduced, and the gear box can be miniaturized. Meanwhile, the front power output shaft and the power output shaft are matched to output front power and back power, and power output is richer.

The utility model relates to the technical field of agricultural machinery, in particular to a frame of an agricultural tractor, which not only is convenient to adapt to different vehicle types and convenient to disassemble during follow-up maintenance by arranging the frame into a split type, but also enhances the strength and the stability of the frame and is convenient to cope with complex environments. Comprising a body mechanism; the vehicle frame further comprises an adjusting mechanism, a connecting mechanism and a bearing mechanism, the adjusting mechanism is installed on the main body mechanism and fixes the connecting mechanism, the connecting mechanism is installed on the adjusting mechanism and facilitates adjustment of the length of the vehicle frame, and the bearing mechanism is installed on the main body mechanism and bears related equipment.

Title: Two-Wheeled Vehicle Carrier Support on an Agricultural Tractor The invention relates to a load carrier support (1) for an agricultural tractor, characterized in that it comprises: - a frame (2) having attachment points (21) for the front or rear lift arms of an agricultural tractor; - a platform (3); - a rail (4) integrated at least partially into a thickness of the platform (3), the rail (4) extending between the two lateral edges (31) of the platform (3), and defining a receiving groove (40) for the wheels of a two-wheeled vehicle. Figure for the abstract: Fig. 1

1. Name of the Design Product: Autonomous Agricultural Tractor. 2. Use of the Design Product: Tractor housing for automatic transportation or agricultural tillage. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Illustrates the Design Key Points: Perspective view.

The utility model discloses a multidirectional spraying mechanism for a soil remediation agent, which belongs to the technical field of soil remediation and comprises an agricultural tractor, a fixed box is fixedly mounted on a matched sweeping board of the agricultural tractor, the inside of the fixed box is divided into a blocky soil treatment cavity and a liquid tank, and a spraying mechanism capable of spraying the remediation agent in multiple directions is arranged above the fixed box. The spraying mechanism and the lead screw sliding rail work to drive the spraying frame to do linear motion along the lead screw, the servo motor is matched to drive the connecting cylinder to rotate in a reciprocating mode, the spraying direction of repairing liquid is continuously changed, the spraying area is wider, the spraying effect is better, the motor drives the rotary tillage wheel to rotate, the rotary tillage wheel blades crush soil of the salinized land, and the spraying effect is better. And the shovel plate and the spiral conveyor are matched to conduct displacement treatment on the crushed blocky soil, the purpose of soil displacement can be achieved without manual assistance, and use is more convenient.

1. The name of the design product: main oil tank of tractor. 2. The use of the design product: main oil tank of agricultural tractor. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

Device (14) for transferring liquid manure from a storage tank (8) to a spreading tank (4) towed by an agricultural tractor (2), comprising a front pipe section (16) with a suction end (12) connectable to the storage tank (8), to which a pump (100) is assigned, and an upper pipe section (28) which is fluidically connected to the pump () and which is adapted for fluidic connection to the spreading tank (4), characterized in that the pump (100) has a motor (110) arranged between at least two pipe sections (112) fluidically connected to the suction port (10) and the upper pipe section (28).

A coupling arrangement for an agricultural tractor comprises a drawbar having a first bar section mounted in a longitudinally movable manner along a predefined adjustment region in a holder for attachment to an underside of a power-take-off transmission housing of the agricultural tractor, and a second bar section situated opposite the first bar section and is guided within adjacent upper and lower supporting cheeks of a coupling carrier plate and can be fixed therein in one of a plurality of coupling positions along the predefined adjustment region by a securing element. At least along the predefined adjustment region, the drawbar is configured as an I profile which runs upright within the holder and has upper and lower flanges which are connected by a web. Left and right inner protrusions on the holder are positioned on both sides of the web of the I profile.