540 results about "Tipper truck" patented technology

A finish machined rear pivot support a dump body of a haul truck can comprise a pair of rear pivots spaced apart from each other in a first direction, and a cross-member extending in the first direction between the rear pivots. The rear pivots can be respectively welded in-line with longitudinal support body members on a bottom of the dump body. The cross-member can extend from inward-facing sides of the rear pivots. Each of the rear pivots can include two cut-outs spaced apart from each other in a second direction perpendicular to the first direction. The cut-outs can be provided over corresponding one of transverse support body members on the bottom of the dump body.

The invention relates to a device and a method for vertically transporting earthwork by a reverse construction method, which belong to the field of civil construction. In the device, segmental belt-type conveyor belts are adopted as earthwork transporting tools in a deep foundation pit; the conveyor belts pass through reserved holes of floor slabs on each floor; and the earthwork is transported to a dump truck obliquely from the bottom to the top by the conveyor belts. The device is formed by connecting independently segmented and obliquely arranged belt-type conveyor belts end to end; and each floor is provided with at least one conveyor belt which consists of an electric motor, a conveyor belt rack, an unloading tank, a scraping plate, a roller wheel, a roller wheel shaft bracket, a belt, a feeding funnel and an emergency brake device. The device and the method for vertically transporting the earthwork by the reverse construction method can effectively increase the earth volume in single vertical transport, effectively improve excavation efficiency, reduce excavation machines, reduce excavation cost, and simultaneously, reduce the influence of the construction of underground excavation on the simultaneous construction of an upper structure to the minimum.

Provided is a navigation system for autonomous dump trucks capable of preventing a dump truck from autonomously traveling on a carrying passage differing from the actual carrying passage even when the carrying passages for the dump truck have been altered. The navigation system is based on map data created by digitizing a map of roads on which the dump truck can travel. A control unit executes switching control between an autonomous mode to be selected when the autonomous traveling of the dump truck should be performed and a maneuver mode to be selected when the dump truck should travel according to an operator, based on version information of the map data used by the dump truck for the autonomous traveling and version information of master map data created by digitizing a map of the latest roads on which the dump truck can travel, managed by a control center.

A wheel mounting cylinder (18) is rotatably provided on an outer peripheral side of an axle housing (12) through wheel support bearings (20, 21). A wet brake (45) is provided between the axle housing (12) and the wheel mounting cylinder (18) for applying a braking force to rotation of the wheel mounting cylinder (18). A seal mechanism (55) is provided between the wet brake (45) and the wheel support bearing (20) for keeping a cooling liquid (50) of the wet brake (45) in a sealed state to lubricant oil (100) in the wheel mounting cylinder (18). A foreign-object trapping portion (58, 62) is provided between the wheel support bearing (20) and the seal mechanism (55) for trapping foreign objects flowing from the seal mechanism (55) toward the wheel support bearing (20).

A method of loading material into a dump body of a truck using a loading bucket whose volumetric capacity is approximately ⅓ or more than that of the dump body is provided. The dump body having side walls that are spaced relatively wider than conventional dump bodies. The loading bucket having a gate at a lower end thereof that when free swings open and causes the material contained in the loading bucket to drop into the dump body. The method including the steps of filling the loading bucket with an amount of earthen material and centering the loading bucket over the dump body. The bucket is then lowered to a position that: (1) substantially minimizes the clearance between the floor of the dump body and the swinging gate in its freed position; (2) allows the swinging gate to clear the side walls of the dump body as it swings through an arc after it is freed, and (3) allows the material to be discharged substantially in the center of the dump body. The swinging gate is then freed so as to open the bucket and allow the material held in the bucket to drop into the dump body.

The invention provides a six-wheel drive dumper assembling method comprising the steps of laying pipes and wires on a walking bench module in advance; laying wires for a rear axle in advance; laying pipes for the rear axle in advance; after the pre-laid pipes and wires for the rear axle are totally assembled off a vehicle, integrally hoisting and installing the part to a frame by using an overhead crane; hoisting and installing the walking bench module to the frame and electrically connecting the pre-laid wires of the walking bench module and the pre-laid wires of the rear axle. The method takes into account overall vehicle apparatus arrangement and the connectors of various system apparatuses and gives consideration to the factors such as optimal pipelines and circuits and convenient maintenance, and the design of the electrical circuits and pipelines of an overall vehicle is carried out in a modularized mode; in the modularized mode, the overall vehicle pipe and wire laying is divided into three major parts, which are the pre-laying of the pipes and wires of the rear axle, the pre-laying of the pipes and wires of the walking bench, and laying of pipes and wires on a vehicle; the pre-laying of the pipes and wires is carried out off the vehicle and the modules are hoisted and installed on the frame after completion, so that the assembling periods are reduced and troubleshooting is facilitated.

An articulated dump truck is provided with an electro-hydraulic bin control system including a proportional control valve for the bin lift cylinders and including a solenoid-operated regenerative valve assembly mounted adjacent the lift cylinders and being actuated, during lifting the bin for dumping a load of material from the bin, to cause a regenerative flow to occur when the force required by the bin lift cylinders to continue lifting the bin falls to a predetermined force. The force required for tilting the bin is continuously calculated by an electronic control unit taking into account a sensed bin load, a sensed bin tip amount and a sensed side-to-side inclination of the bin. In a simplified second embodiment, the proportional control valve controls the regenerative flow

To measure the loaded weight of a dump truck, accurately and inexpensively. In a dump truck comprising a set of equalizer bars respectively provided rotatably on the left and right-hand sides of a vehicle body; first vehicle wheels supported respectively by way of first suspension devices on one side of each equalizer bar; second vehicle wheels supported respectively by way of second suspension devices on the other side of each equalizer bar; and third vehicle wheels provided respectively on the left and right-hand sides of the vehicle body separately from the equalizer bars, and being supported respectively by way of third suspension devices; a first load applied to the second suspension device is detected; a second load applied to the third suspension device is detected; the angle of inclination of the vehicle body is detected; and a loaded weight is calculated on the basis of the first and second loads, and the angle of inclination.

Wheels of a dump truck are each provided with a travel assembly for transmitting an output of an electric motor to the wheel via a reduction gear unit. The travel assembly is provided with a cooling circuit for cooling lube oil. The cooling circuit has an oil cooler and a recovery oil passage for guiding lube oil from a side of the gear unit to the cooler. The recovery oil passage has an intra-spindle recovery line inserted on a side of an inner periphery of a spindle, a suction pipe extending from the recovery line to a space surrounded by the spindle, the wheel and two spindle-supporting bearings, and communication holes formed in the wheel to communicate the side of the reduction gear unit with the space.

The invention discloses a hydraulic auxiliary braking system for a mining dump vehicle and a control method thereof. The hydraulic auxiliary braking system for the mining dump vehicle comprises a braking oil supply system; the braking oil supply system is connected with a pressure switch and connected with an auxiliary braking oil supply system, a parking brake system and a service braking system via one-way valves I; the auxiliary braking oil supply system is supplied with pressure oil liquid by a bidirectional constant displacement pump; the parking brake system comprises an independent energy accumulator; and the service braking system is provided with double independent brake oil paths. The hydraulic auxiliary braking system for the mining dump vehicle has the advantages that the effect is obvious; the system is convenient and easy to use; by using the auxiliary braking oil supply system, the parking brake system and the service braking system, space limitation and non-continuation caused by using the energy accumulator as a power source are avoided; meanwhile, limitation of completely depending on an external power source is also avoided; the continuation and reliability of auxiliary braking are improved; and the application range of the auxiliary braking system is expanded.

The invention discloses a hydraulic lifting device for a dump truck, and the hydraulic lifting device comprises a hydraulic oil tank, a hydraulic oil pump, a hydraulic distribution valve and a lifting oil cylinder, wherein the oil outlet of the hydraulic distribution valve is directly connected with the lifting oil inlet of the lifting oil cylinder. A hydraulic oil cylinder and the hydraulic distribution valve are installed in an integral way, and a high-pressure oil pipe arranged between the lifting oil inlet of the hydraulic oil cylinder and the oil outlet of the hydraulic distribution valve in the lifting configuration of the existing dump truck can be omitted. When a carriage of the dump truck is lifted, and the high-pressure oil pipe bursts suddenly, a reverse oil return way arranged in the lower cavity of the oil cylinder is automatically cut off by a one-way valve arranged at the outlet of the hydraulic distribution valve, the carriage is maintained at the stop position and does not fall off, and the carriage can be reliably and stably arranged on an auxiliary frame after the high-pressure oil pipe is replaced, so that terrible accidents are effectively prevented, and the personal safety of a driver and the safety of a vehicle can be well protected.

The invention discloses a non-highway mining dump vehicle loading monitoring and recording system which comprises a vehicle loading monitoring controller, a loading monitoring data module, a vehicle driving state module and a loading monitoring and displaying module. The output ends of the loading monitoring data module and the vehicle driving state module are connected with the signal input end of the vehicle loading monitoring controller; the output end of the vehicle loading monitoring controller is connected with the signal input end of the loading monitoring and displaying module; the vehicle loading monitoring controller detects and confirms the vehicle transporting state according to current driving state information and loading information which are collected by the vehicle driving state module; the loading monitoring data module is used for obtaining the vehicle loading information; and the vehicle driving state module is used for detecting the current driving state information of a vehicle. The invention further discloses a non-highway mining dump vehicle loading monitoring and recording method. The actual situation of transporting of a driver can be effectively monitored.

The invention relates to an inclined dumper door of a freight carriage, belonging to vehicle transport tool components. The invention adopts the following technical scheme: the inclined dumper door of the freight carriage comprises a carriage and is characterized in that a conveyor type car bottom plate is arranged at the rear part of the carriage; the conveyor type car bottom plate is connected with the carriage through a hinge; the conveyor type car bottom plate can rotate around the hinge; an arc-shaped guard plate is arranged at the upper part of the conveyor type car bottom plate; the rear part of the carriage is provided with a guard plate embedding groove; the conveyor type car bottom plate rotates around the hinge for inclining, and then the arc-shaped guard plate is embedded into the guard plate embedding groove; a telescopic rod is arranged at the bottom of the conveyor type car bottom plate; the fixed end of the telescopic rod is articulated with the bottom of the carriage; a guide rod of the telescopic rod is articulated with the bottom of the conveyor type car bottom plate; and the guide rod of the telescopic rod extends forward or retracts backward to drive the conveyor type car bottom plate to rotate around the hinge.

Detection signals from lever sensor (29), sit-down sensor (30) and vehicle speed sensor (31) are read into a controller (32). A control signal is produced by the controller (32) to switch a directional control valve (20) of a control valve unit (16) instantly from a floating position (c) to a neutral position (a) and to switch another directional control valve (21) from a neutral position (a) to a lowering position (d) when a dump truck (1) is in travel with the directional control valve (20) of the control valve unit (16) is switched in the floating position (c). Whereupon, a hoist cylinder (10) is contracted by a hydraulic pressure force to hold a vessel (3) in a sit-down position on a vehicle body (2), thereby preventing the vessel (3) from shaking movements like floating up while the dump truck (1) is in travel.

A differential features larger amplitude in gear ratio fluctuation and higher torque bias ratio. When one of the driving wheel slips, the period of the gear ratio fluctuation between the pinion and side gears involves at least two pitches, thus each period of the gear ratio fluctuation involves a group of teeth, and the number of teeth involved in each group are corresponding to the number of pitches involved in each period. Each pinion has an odd number of groups of teeth, and the group number in side gears is a multiple of the number of pinions. The differential is particularly suitable for off-road vehicles, tippers and wheeled civil engineering machinery.

The invention provides a horizontally pushing type dumper, which can move loaded cargoes backward as a whole to realize unloading. The horizontally pushing type dumper comprises a flat bottom type carriage; the flat bottom type carriage comprises a front breast board, a left side breast board, a right side breast board, a bottom board, front stand columns and rear stand columns; the carriage is internally provided with a push board which is in parallel to the front breast board; the left side breast board, the right side breast board and the bottom board are provided with longitudinal slideways or slide rails; correspondingly, the push board is provided with slide blocks or slide grooves; the left side breast board, the right side breast board and the bottom board form a movable pair with the push board; the push board can move backward and forward along the carriage under the drive of a push board driving device; when the cargoes are unloaded, the push board moves backward; and after the cargoes are unloaded, the push board moves forward to reset. According to the invention, when the cargoes are unloaded, the horizontally pushing type dumper does not need to lift the carriage and can unload the cargoes in the carriage completely only by moving the push board backward; unloading through tipping the carriage is changed to the unloading through horizontal movement, thereby promoting the cargo capacity and the vehicle stability and meanwhile reducing the probabilities that a vehicle frame suffers permanent deformation, and snap of welded joints happens in the carriage and an auxiliary frame.

The invention relates to a large vehicle fuel tank with a fuel-shaking alleviating function. The large vehicle fuel tank aims to reduce impact generated by fuel shaking to a fuel tank fixing structureand a vehicle body and reduce heat generated by fuel shaking in the operation process of a large vehicle. An inner cavity of the fuel tank is divided by horizontal partition plates into a plurality of vertically-distributed secondary oil cavities, and two through holes are formed in each horizontal partition plate, wherein one of the two through holes is used for arranging an oil inlet pipe, andthe other one of the two through holes is used for communicating the two corresponding adjacent secondary oil cavities. In the working process, saturated secondary oil cavities and non-oil secondary oil cavities cannot generate fuel impact, and therefore impact of fuel to the fuel tank is only limited to secondary oil cavities where the liquid levels are located. Longitudinal partition plates thendivide each secondary oil cavity into a plurality of horizontally-distributed third-level oil cavities communicating through seams, light floating plates are arranged in all third-level oil cavitiesexcept the bottommost oil cavities, and therefore impact of fuel in the fuel tank to the tank and the vehicle body is effectively lowered. Since the bottom secondary oil cavities are relatively small,oil supply is more sufficient and smoother to a dumper in a less-oil climbing state.

The invention relates to a movable ship loader for automobile dumping. The movable ship loader comprises a ship loader receiving section, a ship loader discharging section, a large vehicle and a dustremoving device, wherein the ship loader receiving section and the ship loader discharging section are connected with a cart; and the dust removing device is arranged above the ship loader material receiving section so as to control the overflow when unloading operation of a dumper. The movable ship loader is small in investment, big in flexibility, and wide in applicable operation scope, and doesnot need multiple configurations, and can carry out displacement operation at any time.

The invention discloses an environment-friendly top cover system for a folding tarpaulin of a dump truck. The environment-friendly top cover system comprises two guide rails and a tarpaulin support which is controlled by a motor driving device, wherein the tarpaulin support is connected between the two guide rails; the tarpaulin support is positioned above the two guide rails; an outer tarpaulin is connected to the outer surface of the tarpaulin support; the two guide rails are installed in the upper frames of two side plates of a compartment; the outer sides of the two guide rails are connected with a plurality of sliding mechanisms; oblique plates which are inclined towards the position below the inner side are connected to the right and left sides of the interior of the tarpaulin support; the oblique plates extend in the front-back direction of the compartment; inner tarpaulins are connected to the oblique plates. The environment-friendly top cover system for the folding tarpaulin of the dump truck is durable, and the impact of materials on the guide rails in loading can be avoided.

The invention discloses a path planning method, a vehicle and a computer readable medium. The path planning method is applied to automatic driving of the vehicle. The path planning method comprises the following steps: obtaining a preprocessing result corresponding to preset request data; obtaining coarse search data of preset planning data according to the preprocessing result; and performing path optimization on the coarse search data to realize path planning. According to the method, a steering switching penalty term and a steering penalty term which are added in a traditional hybrid A* algorithm are improved, and an RS curve heuristic algorithm is adopted, so that extremely high solving capacity is achieved, and the calculation efficiency is improved; meanwhile, it is guaranteed that the planning result can meet the kinematics constraint of the vehicle in the optimization process of the rough search result, the difference of vehicle response characteristics in different full-load and no-load states and the response characteristics of an executing mechanism of a mining dump vehicle are fully considered, and the method is more suitable for a real application scene; and the requirement on the working environment is low, and the adaptability is higher.

The invention discloses a dump truck with a load limiting function. The dump truck comprises a truck body and a carriage installed on the truck body, a limiting baffle is arranged on the head of a carriage body of the carriage, the middle portion of the hydraulic cylinder is fixedly hinged to the carriage body, close to the truck front, of the carriage and is located below the limiting baffle, andthe top of the hydraulic rod is connected with the truck body; a tail door of the carriage is locked through hydraulic pressure, a carriage body lid which has the load limiting function and is matched with the limiting baffle is arranged above the carriage, the limiting baffle limits the height of the carriage body lid of the upper portion of the carriage, and when the carriage body lid cannot cover the carriage, the truck cannot run. According to the dump truck with the load limit function, the problem that dust flies in the delivery process can be also prevented while overloading is controlled; through the structural design of the carriage body, loaded goods automatically fall to the lowermost portion in an internal U-shaped structure; during unloading, supportingis conducted through the hydraulic rod, the goods can be thoroughly dumped, and goods like sand are conveniently unloaded; moreover, the carriage body structural design is stable to bear, the truck body weight is low, the oil consumption is small, energy is saved, and the environment is protected.

The invention discloses a dumper which comprises a chassis engine, a running system and a hydraulic driving system with a closed top cover, wherein the running system comprises a transmission case; the hydraulic driving system with the closed top cover comprises a hydraulic pump, a hydraulic execution unit, a control valve and an oil tank, wherein the hydraulic execution unit is connected with theclosed top cover, the control valve is arranged in an oil way between the hydraulic execution unit and the hydraulic pump, two working oil ports of the control valve are respectively connected with two oil inlet and return ways of the hydraulic execution unit, an oil inlet of the control valve is connected with an oil outlet of the hydraulic pump, and an oil inlet of the hydraulic pump and an oilreturn port of the control valve respectively communicate with the oil tank; and the transmission case and the hydraulic pump are respectively in transmission connection with the chassis engine. Thedumper disclosed by the invention has the advantages that on one hand, the closed top cover is large in working force and high in speed; and on the other hand, the hydraulic driving system with the closed top cover can be driven to work by the chassis engine when a vehicle is in a running state or a parking state so as to avoid the problem that the closed top cover only can be operated after the vehicle is parked, thereby improving the working efficiency.

The invention relates to a variable-speed driving system with multiple driving motors. The variable-speed driving system is characterized by comprising a first driving motor (1), a second driving motor (2), a third driving motor (3), a first input shaft (4), a second input shaft (5), a power output shaft (6) and a power take-off shaft (13). The variable-speed driving system aims at heavy trucks such as dump trucks, towing vehicles, mine trucks and the like with severe and complex operation conditions, and through cooperative work of the multiple motors, the problem of power interruption in the gear shifting process is thoroughly solved, and the reliability of gear shifting under the severe working condition is guaranteed; through a multi-motor working scheme, when the power needs to be increased in the later period, the multiple motors can be increased at the same time, and the technical difficulty and the cost increasing amplitude are reduced; and the double motors are coupled on an intermediate shaft after input, intermediate shaft gears are reused at the same time, and multiple gears are achieved through fewer gears.

The invention discloses a semi-active hydro-pneumatic suspension system of a mining dump truck and a control method, the system comprises a hydro-pneumatic spring, an acceleration sensor arranged on the hydro-pneumatic spring, a damping adjusting unit and a truck body height adjusting unit, and according to the method, the acceleration of mass on the hydro-pneumatic spring is measured through the acceleration sensor; the measured acceleration is compared with a set expected value, the output voltage is calculated and controlled through an ABC-BP neural network PID controller, the current of a two-position two-way electromagnetic proportional valve in the damping adjusting unit is changed, and then the opening degree of the damping adjusting unit is controlled, so that the damping force is adjusted in real time, the smoothness of the whole vehicle is improved. Meanwhile, opening and closing of a two-position three-way electromagnetic valve and a two-position two-way electromagnetic valve in the adjusting unit can be controlled, the height of a vehicle body is adjusted, rigid locking of the suspension is achieved, and the trafficability and loading safety of a vehicle are improved.

A traveling device (11) is provided with an electric motor (16) provided in a vehicle body (2) of a dump truck (1), an output shaft (17) an axial base end of which is connected to the electric motor (16) and which outputs rotation of the electric motor (16), a bottomed hole spline (53) formed in an axial front end of the output shaft (17), and an input shaft (42) which has a shaft spline (54) spline-coupled to the hole spline (53), and inputs the rotation of the output shaft (17) to a reduction gear mechanism (27). The output shaft (17) is provided with an oil reservoir space (55) formed in the innermost part of the hole spline (53), an annular oil groove (56) and an oil path (57) providing communication between the oil reservoir space (55) and the annual oil groove (56). Lubricant oil (100) supplied to the annular oil groove (56) is supplied via the oil path (57) to the oil reservoir space (55), and is supplied to a spline joint between the hole spline (53) and the shaft spline (54) with rotation of the output shaft (17).

The invention discloses an earth and rockfill dam intelligent paving monitoring system and a monitoring method thereof. The earth and rockfill dam intelligent paving monitoring system comprises a differential base station, a relay station, a sub-control station, a bulldozer monitoring terminal, a vehicle-mounted navigation system, a dumper unloading positioning device, a Beidou measuring rod, a Beidou director and a server. The bulldozer monitoring terminal obtains real-time spatial positioning information of the bulldozer through positioning differential information, obtained by the differential base station, of the bulldozer and satellite positioning information obtained by the observation positioning satellite and sends the real-time spatial positioning information to the relay station;the Beidou measuring rod sends the warehouse building coordinate data to the sub-control station to obtain warehouse surface initial information; the dump truck unloading positioning device sends dump truck unloading information to the Beidou director; and the server acquires related information sent by the relay station, the sub-control station and the Beidou director, sends real-time warehousesurface information to the bulldozer monitoring terminal, and sends paving process information and bulldozer real-time spatial positioning information to the vehicle-mounted navigation system. Standardization and intellectualization of the paving operation process can be achieved.

The invention discloses a dump truck lifting system. The dump truck lifting system comprises an oil tank, an oil pump, a limit valve and a lifting oil cylinder. The oil tank is communicated with the lifting oil cylinder, and both ends of the limit valve are communicated with the outlets of the oil tank and the oil pump respectively. The dump truck lifting system achieves control of up and down of a dump truck by directly controlling fluid of hydraulic pipes, therefore, the up and down speeds can be directly sensed, reliable operation control and rapid system response can be achieved, system troubleshooting can be facilitated and low comprehensive cost can be obtained.

The invention discloses a mining dump truck hopper. The mining dump truck hopper comprises a hopper body and a base, wherein an angle adjusting device is arranged at the lower end of a hopper bottom plate, and is positioned at the side, far away from a moving plate, of the hopper body; a water spraying device used for cleaning a hopper cavity and a first driving assembly used for driving the waterspraying device to forwards and backwards move are arranged at the upper end of the hopper body; cleaning support frames and second driving assemblies used for driving the cleaning support frames toupwards and downwards move are also arranged at the two ends of the hopper body; and each cleaning support frame is in a square shape. The mining dump truck hopper is provided by the water spraying device and a material scraping plate which are used for cleaning residual difficult-to-treat goods; manual cleaning is not needed; and the mining dump truck hopper is also provided with a protection cover connecting element to realize protection cover addition to the side wall of the hopper, so that a phenomenon of side leakage of goods during sharp turning is prevented.

The invention discloses a high-stress plate spring for a mining dump truck, and belongs to the field of manufacturing of automobile springs. The high-stress plate spring is characterized in that the high-stress plate spring comprises a plate spring body, a left hoop arm and a right hoop arm are arranged on the left side and right side of a first upper plate spring piece, a second upper plate spring piece and a plurality of lower plate spring pieces correspondingly, a plurality of left plate spring piece inserting holes are formed in the upper portion of the left hoop arm, a plurality of rightplate spring piece inserting holes are formed in the upper portion of the right hoop arm, the left ends of the first upper plate spring piece, the second upper plate spring piece and each lower platespring piece are inserted into the left plate spring piece inserting holes of the left hoop arm correspondingly, and the right ends of the first upper plate spring piece, the second upper plate springpiece and each lower plate spring piece are inserted into the right plate spring piece inserting holes of the right hoop arm correspondingly, and the lower ends of the left hoop arm and the right hoop arm are connected with stress adjusting devices. According to the high-stress plate spring for the mining dump truck, the high stress of the plate spring can be maintained, fixation is firm, and torsional dislocation among the plate spring pieces is not easy to occur; in addition, the stress of the plate spring can be flexibly adjusted, and the application range is wider.