106 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.

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.

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.

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.

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.

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. 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).

The hydraulic control system applied to the small agricultural tractor comprises a main valve body, a first oil port is formed in the main valve body, the inlet end of the first oil port is connected with an external hydraulic oil system, and the outlet end of the first oil port is connected with a sequence valve used for controlling the pressure of hydraulic oil to be kept at a preset pressure value; the outlet end of the sequence valve is respectively connected with a pressure reducing valve and a priority valve; the outlet end of the pressure reducing valve is connected with a steering valve set, and the steering valve set conducts pressure reduction on the hydraulic oil output by the first oil port through the pressure reducing valve so as to control steering of the small agricultural tractor. The outlet end of the priority valve is respectively connected with a leveling electromagnetic valve and a lifting valve, and the priority valve controls the flow distribution of the hydraulic oil so as to control the automatic leveling and lifting of the rotary tillage accessory on the small agricultural tractor. The steering valve group, the leveling electromagnetic valve and the lifting valve are integrated on one main valve body, so that the steering valve has the characteristics of compact structure and small size, and is suitable for small agricultural tractors.

This invention discloses a method and system for constructing a lifespan degradation model and predicting the lifespan of an agricultural tractor battery system. The method includes: First, constructing a cyclic aging model and a calendar aging model for the agricultural tractor battery system. The cyclic aging model captures the influence of temperature on battery degradation and the role of different aging mechanisms during the cyclic use of the agricultural tractor battery system. The calendar aging model captures the capacity degradation of the agricultural tractor battery system during storage. The model parameters of the cyclic aging model and the calendar aging model are obtained by fitting corresponding experimental data, thus constructing the cyclic aging model and the calendar aging model. Then, using the calendar aging model as the primary model, the cyclic aging model and the calendar aging model are fused to construct a lifespan degradation model that can accurately predict the lifespan degradation of the agricultural tractor battery system. The lifespan degradation model can accurately predict the amount of lifespan degradation of the agricultural tractor battery system.

The invention relates to a clutch device (1) for an agricultural tractor, comprising a friction clutch (5), which has a counter plate (2), a pressure plate (3) which can be axially moved relative to the counter plate (2), and a clutch disc (4) which can be frictionally pressed between the counter plate (2) and the pressure plate (3), and comprising an actuating device (6) for axially moving the pressure plate (3), an actuating lever (7) of the actuating device (6) being pivotably mounted on a bearing device (8) fixed to the housing and being axially movably coupled to the pressure plate (3) indirectly via an actuating device (6) intermediate lever (9) which is pivotally mounted on the actuating lever (7). The radially inner end (10a) of the actuating lever (7) is coupled to an axially movable actuating ring (11), and the radially inner end (12a) of the intermediate lever (9) rests against a bearing surface (13) of an adjustable ramp device (14) while the radially outer end (12b) thereof is axially movably coupled to the pressure plate (3). The ramp device (14) is designed to adjust the actuating lever (7) starting position, which can be changed due to a wear-induced movement of the pressure plate (3) relative to the counter plate (2), and the ramp device (14) has a drive (16) which is controlled on the basis of wear and comprises a biasing device (17), said biasing device being designed to store drive energy for the ramp device (14), and a blocking device (18), said blocking device blocking the biasing device (17) in a blocking state. The blocking device (18) additionally has a coupling mechanism (39).

The utility model provides a single-motor driving system of an agricultural tractor. The single-motor driving system comprises a driving motor, a three-gear gearbox, a battery pack, a motor controller, an operation control end, an encoder and an electronic hydraulic control device. According to the single-motor driving system of the agricultural tractor, a traditional fuel engine is completely replaced by the single motor, the single motor serves as a kinetic energy output unit, and therefore one-to-one replacement in the true sense is achieved. The highly integrated driving system not only achieves the function of an MCU (microcontroller unit), but also achieves the function of a VCU (vehicle control unit), can effectively achieve the maximization of resource utilization, and guarantees the reduction of the manufacturing cost and the use cost. The problem that in the prior art, no stable and efficient solution exists in the field of electric upgrading and reconstruction of a fuel tractor driving system, and the upgrading and reconstruction process of a fuel tractor is seriously hindered is solved.

To provide a powertrain for an agricultural tractor, with dual drive and dual independent electrical output.SOLUTION: A powertrain comprises: two or more output drive shafts (105, 107) coupled to two or more loads; and a single power source (113) connected to multiple loads (101, 103, 104), by the first solid shaft (105) connecting a machine 1 to a load 1 (101) on one end through a coupling device (106) and optionally to a prime mover (109) on a front end through a coupling unit (110).SELECTED DRAWING: Figure 1

The present invention concerns an improved cutting unit configured to be easily integrated in a ventral position into a common agricultural tractor, of any size and power. Compared to known solutions, the invention allows a significant reduction in energy consumption since it enables to carry out at the same time grass cutting as well as other works on an agricultural land e.g. trimming or phytosanitary treatments, inter-row processing or management of leaf walls.

To address a problem of a known work vehicle such as an agricultural tractor having a front ROPS member that the front ROPS member is not always fully rigidly attached.SOLUTION: A work vehicle includes a front frame 60 that is fixed to left and right flanks of an engine 30 and supports front wheels 40f, a transmission mechanism 70 attached to the engine 30, and a front ROPS member 80. A lower end of the front ROPS member 80 is fixed to a front ROPS left plate 81L and front ROPS right plate 81R attached to the flank of the front frame 60 and the flank of the transmission mechanism 70.SELECTED DRAWING: Figure 2

A tire analysis method and system (8) for determining characteristic parameters of an agricultural tractor (1) provided with two front wheels (2) supporting two front tires (3) and two rear wheels (4) supporting two rear tires (5), comprising: mounting a first rotation sensor (9) on the first wheels (2, 4) and mounting a second rotation sensor (9) on the second wheels (2, 4), driving the agricultural tractor (1) along a straight path, measuring a total number of rotations of the first wheels (2, 4) and the second wheels (2, 4) while driving the agricultural tractor (1) along the straight path, and using the total number of rotations of the first wheels (2, 4) and the second wheels (2, 4) to determine at least one characteristic parameter.

The embodiment of the utility model provides a tractor escape assisting device and a farming tractor, and the tractor escape assisting device comprises a connecting piece which comprises a first connecting part and a second connecting part; the first connecting part is used for being connected to a hub of a tractor wheel; the second connecting part is cylindrical and is vertical to the first connecting part in the length direction; the second connecting part is connected with the first connecting part; via holes are formed in the two opposite side walls of the second connecting part respectively, connecting lugs are arranged on the two sides of each via hole, and connecting holes are formed in the connecting lugs; the supporting piece sequentially penetrates through the two via holes in the second connecting part and is connected with the connecting holes in the connecting lugs; when the escape device is in a working state, an acute angle is formed between the extending direction of the supporting piece and the first connecting part, and the distance between the projection of the supporting piece in the extending plane of the first connecting part and the supporting piece is gradually increased in the direction away from the connecting piece. The auxiliary escape device for the tractor provided by the embodiment of the utility model can realize self-rescue and escape of the tractor, and can avoid a farming mechanism behind.

The utility model provides a kind of spraying device of fertilizer pesticide, including plow frame, plough share, soil covering plate, fertilizer storage tank and spray pipe, the plow frame bottom is provided with at least one row of plough share, the soil covering plate is installed in the tail portion of the plow frame, the fertilizer storage tank is installed on the plow frame by support, the spray pipe is arranged between the plow frame and the soil covering plate, the spray pipe bottom is provided with multiple spray nozzles, the spray nozzle is one-to-one corresponding with the plough share;The spray pipe is sequentially connected pump machine and the fertilizer storage tank by pipeline;Plow frame is installed on agricultural tractor by suspension device, and plough share in the bottom of plow frame can plough as agricultural tractor moves, ammonia water fertilizer in fertilizer storage tank is injected into furrow by spray pipe, then realizes soil covering by soil covering plate, to reduce the volatilization of ammonia water fertilizer, the present application can realize ploughing, fertilizer injection and soil covering operation in dry land operation, high efficiency and convenient to use, suitable for large-scale popularization and use.

The utility model discloses a peanut film mulching seeder which comprises a moving plate, the moving plate is installed on an external agricultural tractor, a film mulching assembly, a seeding assembly and a fertilizing assembly are installed at the bottom of the moving plate, the fertilizing assembly is located between the seeding assembly and the film mulching assembly, and the film mulching assembly comprises a film rolling roller. A mounting opening for mounting a mulching film is formed in the peripheral side surface of the film rolling roller; and the film mulching assembly further comprises a pressing plate. The first motor is driven to drive the film rolling roller to rotate, so that a mulching film is released, then the pressing plate moves to the position above the mulching film, the output end of the air cylinder is driven to drive the pressing plate to move downwards till one end of the mulching film is pressed into soil, then the output end of the air cylinder is controlled to move upwards to return to the initial position, and at the moment, sandy soil can be scattered above the mulching film. The mulching film is automatically fixed to the land, automatic soil covering is carried out, the position of the mulching film is prevented from moving in the laying process, and the laying effect of the mulching film is improved.

Coupling device (1) for an agricultural tractor, comprising a counter plate (2), a pressure plate (3) axially displaceable relative to the counter plate (2) and a clutch disc (4) pressed between the counter plate (2) and the pressure plate (3) by frictional engagement, an actuating device (6) for axially displacing the pressure plate (3), wherein an actuating lever (7) of the actuating device (6) is pivotably arranged on a housing-fixed bearing device (8) and is indirectly coupled axially displaceably to the pressure plate (3) via an intermediate lever (9) of the actuating device (6) pivotably mounted on the actuating lever (7), wherein the actuating lever (7) is coupled at its radially inner end (10a) to an axially displaceable actuating ring (11) and the intermediate lever (9) bears at its radially inner end (12a) against a support surface (13) of an adjustable ramp device (14), while its radially outer end (12b) is axially displaceably coupled to the pressure plate (3), wherein the ramp device (14) is designed to readjust an initial position of the actuating lever (7) which may change as a result of a wear-related displacement of the pressure plate (3) to the counter plate (2), wherein the ramp device (14) has a wear-dependent controlled drive (16) with a pre-tensioning device (17) designed to store drive energy for the ramp device (14) and a locking device (18) blocking the pre-tensioning device (17) in a locking state, wherein the locking device (18) has a coupling gear (39).

The application belongs to the field of agricultural tractor technology, and particularly relates to a transmission system of an agricultural tractor, which comprises a reduction gearbox and a differential assembly, a mandrel and a walking output shaft are arranged in the reduction gearbox, the mandrel is in transmission connection with an input shaft of a hydrostatic stepless speed change device through an intermediate shaft assembly, an output shaft of the hydrostatic stepless speed change device is in transmission connection with the walking output shaft through a transmission gear assembly one, the intermediate shaft assembly comprises an intermediate shaft, an intermediate gear one and an intermediate gear two, a hydraulic pump is arranged on the reduction gearbox, an input gear two is sleeved on an input shaft of the hydraulic pump, a hydraulic motor is arranged on the differential assembly, and an output shaft of the hydraulic motor is in transmission connection with one differential output shaft. Two hydrostatic stepless speed change devices are adopted in the application, and one of the hydrostatic stepless speed change devices is disassembled into a hydraulic pump and a hydraulic motor. When turning, the two driving wheels on the tractor can be driven to rotate forward and reversely, so that the agricultural tractor can be turned in place.

The present invention relates to technology for improving the cooling efficiency of an air conditioner in an agricultural tractor. Provided is an agricultural tractor comprising: a blower (131) that draws in outside air; a temperature control unit (132) that is provided with the air (hereinafter referred to as 'inflow air') drawn in from the blower (131) and regulates the temperature of the inflow air; and an air guide part (133) that guides the flow direction of the inflow air so that the inflow air uniformly reaches the temperature control unit (132). The present invention has the effect of improving cooling efficiency because the inflow air drawn into the air conditioner by the blower (131) uniformly reaches an evaporator.

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

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.