The invention discloses a two-man ladle transportation vehicle, which relates to the technical field of a transportation vehicle and comprises a weighing system and a tilting prevention device, wherein the weighing system comprises a weighing sensor, an installing module, a weighing controller and a weight information display screen, the weighing sensor is arranged at the lower end of a two-man ladle platform of the two-man ladle transportation vehicle through the installing module, the weighing controller is respectively connected with the weighing sensor and the weight information display screen, and the tilting prevention device is arranged at the periphery of the two-man ladle platform. The invention provides a new transfer tool for the steel ladle transportation in a factory, and thetwo-man ladle transportation vehicle is improved, so the two-man ladle transportation vehicle has the weighing and tilting prevention function, a power storage battery device is used as motive power,the static hydraulic transmission is adopted, a lifting function and a multi-mode steering function are realized, the two-man ladle transportation vehicle belongs to a tire type transportation devicerealizing wireless communication of central control instructions and vehicle-mounted information, the two-man ladle transportation vehicle is environmental-friendly and does not cause pollution, and the conveyance work of magnesium chloride high-temperature melt is completed under the condition of ensuring the safety.

Two-man ladle transportation vehicle

The invention relates to a control system, in particular to a hydraulic brake device, which is characterized by comprising a hydraulic valve, a gear pump, a motor, an overflow valve, an electromagnetic valve and an energy accumulator. The gear pump is connected to the hydraulic valve, the motor is used for driving the gear pump, a hydraulic outlet of the gear pump is connected with a first pressure switch through a one-way valve to form a first pressure pipeline, and the overflow valve is parallelly connected to a hydraulic outlet and the hydraulic inlet of the gear pump to form a loop with the gear pump. The electromagnetic valve is connected to the hydraulic valve and sequentially connected with a second pressure switch and a second pressure switch through a proportional valve to form a second pressure pipeline. The energy accumulator is divided into three ways, one way is connected with the hydraulic valve through a manual valve, and the other ways are connected with a pressure monitoring end of the first pressure pipeline and the proportional valve of the second pressure pipeline respectively. Compared with the prior art, the hydraulic brake device has the advantages that any pressure compensation energy saving modes can be met, and the service lives of parts such as the motor and the like can be prolonged.

Hydraulic brake device

The utility model relates to a multi-cylinder synchronous hydraulic system. The multi-cylinder synchronous hydraulic system comprises an oil supply system and at least two hydraulic cylinders, wherein a synchronous cylinder is arranged between the oil supply system and the hydraulic cylinders; clapboards are arranged in the synchronous cylinder; and the clapboards divide the synchronous cylinder into cylinder barrels, wherein the number of the cylinder barrels is the same as the number of the hydraulic cylinders; a piston is arranged in each cylinder barrel; the adjacent pistons are fixedly connected by a piston rod; oil holes are respectively formed in two sides of the piston on each cylinder barrel; the oil holes in the same side of the each piston are communicated with the oil supply system; and the oil holes in the other side of each piston are communicated with the corresponding hydraulic cylinder. The synchronous cylinder simultaneously supplies oil to the plurality of hydraulic cylinders, the number of the hydraulic cylinders can be set according to actual requirements; and the generality is relatively strong. According to the utility model, the synchronous cylinder with the new structure is used for realizing the multi-cylinder (even eight-cylinder) hydraulic system, so that the limitation in prior synchronous technology is solved; a plurality of system errors are modified; the applicable load range and applicable capacitance range are wide; the manufacture cost is moderate; and above 99% of synchronous precision is realized trough a hydraulic compensation unit and an oil compensation device.

Multiple-cylinder synchronous hydraulic system

The invention discloses an on-off control system of a multi-bridge suspension system. The suspension grouping valve set comprises two hydraulic control one-way valves, a pressure sensor, a control valve set, an air control device and a controller, wherein the two hydraulic control one-way valves are communicated to a hydraulic system oil path and are provided with opposite oil inlets; the pressure sensor is located on an oil path between the oil inlets of the two hydraulic control one-way valves and is used for collecting pressure information of oil liquid in a pipeline between the oil inlets of the two hydraulic control one-way valves; the control valve set is used for controlling the two hydraulic control one-way valves to be opened or closed; the air control device is used for controlling the control valve set to be opened or closed; and the controller is in signal connection with the pressure sensor and is used for controlling the air control device to move and judging the switching-on/off of the hydraulic system oil path according to the pressure information collected by the pressure sensor. The suspension grouping valve set can collect the pressure information through the pressure sensor, can judge the pressure information by the controller, and can detect the state of grouping operation, so as to improve the safety in the grouping operation of the multi-bridge suspension system. The invention further provides one suspension system and a detection method of the suspension system.

Suspension system, switching-on/off control system and detection method thereof

The utility model relates to a mining dump truck which is mainly suitable for mining transportation of a large surface mine. A running gear of the mining dump truck comprises a truck frame and a plurality of hydraulic suspensions; every two hydraulic suspensions form a shaft line; the running gear at least comprises two shaft lines; the truck frame is an intermediate box beam structure; wing beams are extended from the two sides of the intermediate box beam; each hydraulic suspension comprises a rotary bearing, a rotary frame, a swinging arm, a suspension cylinder, an oscillating shaft and wheels; wherein the upper end of the rotary frame is arranged on the lower plane of each wing beam of the truck frame by the rotary bearing; the upper end of the rotary frame is movably connected with the swinging arm by pins; one end of the suspension cylinder is hinged to the lower part of the rotary frame; the other end of the suspension cylinder is hinged to the middle part of the swinging arm; the front end of the swinging arm is a cylindrical pin shaft; the oscillating shaft is sleeved on the cylindrical pin at the front end of the swinging arm; and the wheels are arranged at the two ends of the oscillating shaft. The mining dump truck is characterized in that the safety of the mining dump truck is improved; the minimal turning radius of a vehicle is also reduced at the same time; the throughput capacity, the maneuverability and the off-road performance of the mining truck are improved; and the cost of use and maintenance is reduced.

Mining multi-shaft dump truck

The utility model relates to a suspension steering system and discloses an independent-steering oil gas suspension system. The independent-steering oil gas suspension system comprises an axle, a rotary arm, a swinging arm, a swinging cylinder, a slewing bearing, a suspension oil cylinder, an energy accumulator and an oil cylinder travel transmitter, wherein the swinging cylinder is arranged on a frame and is connected with the rotary arm; the swinging cylinder is provided with a coder; an outer gear ring of the slewing bearing is connected with the frame, and an inner gear ring of the slewing bearing is connected with the rotary arm; the rotary arm is connected with the swinging arm; the swinging arm is connected with the axle; the energy accumulator is connected with a hydraulic source; the oil inlet of the suspension oil cylinder is connected with the energy accumulator; the cylinder barrel of the suspension oil cylinder is connected with the rotary arm; the piston rod of the suspension oil cylinder is connected with the swinging arm; and the oil cylinder travel transmitter is installed on the suspension oil cylinder. By adopting the swinging cylinder as the steering driving mechanism, the independent-steering oil gas suspension system provided by the utility model has the advantages of compact structure, good use effect and low cost, is convenient to assemble and disassemble, is especially suitable for vehicles with smaller space and is easy to maintain.

Independent-steering oil gas suspension system

The utility model relates to a proportional synchronous lifting system. The proportional synchronous lifting system comprises a proportional synchronous lifting valve bank, four groups of supporting oil cylinders, a controller and position sensors, wherein the proportional synchronous lifting valve bank comprises a valve block body and four groups of hydraulic control one-way valves, proportional directional valves, plate-type ball valves, pressure sensors and overflow valves; the four groups of hydraulic control one-way valves, proportional directional valves, plate-type ball valves, pressure sensors and overflow valves are arranged on the valve block body; the position sensors are connected with the controller and height sensors which are arranged at supporting points; the controller is connected with the proportional lifting valve bank; and the proportional lifting valve bank is connected with the supporting oil cylinders. Due to the adoption of the structure, closed-loop control can be realized, and the precision and the stability for synchronization of a lifting platform are improved.

Proportional synchronous lifting system

The utility model discloses a draw bar equipped with a connecting end being capable of rotating for a hydraulic trailer The draw bar includes a draw bar body, a rotatable draw head, a pushing rod assembly, a supporting wheel assembly, a lock nut, a cotter pin, and a balance washer The rotatable draw head is in a rotatable structure capable of rotating 360 degrees which is convenient in detachment and flexible in use; the pushing rod assembly is connected to a side bogie or a central bogie which pulls the draw bar to prevent the draw bar from directly falling to the ground after the draw bar is disengaged with the tractor and takes an auxiliary alignment effect when the draw bar is butted to the tractor; the supporting wheel assembly is used as a movable wheel, when the whole vehicle is unable to turn in a narrow area, the draw bar can be detached and dragged to the other end of the trailer to connect to the trailer by depending on the rolling of the support wheel, and then the draw bar is connected to the turned tractor to complete the turning of the whole vehicle to realize the driving in a reverse direction

Draw bar connection device of trailer

The utility model relates to a service brake system, in particular to a service brake hydraulic system for an electric bag lifting vehicle, which comprises an energy accumulator, a pedal pressure reduction valve, a brake, a miniature motive power unit, a pressure switch and a cutoff valve, wherein the pressure switch comprises a motor starting pressure switch, a motor flameout pressure switch and a service brake pressure switch, the energy accumulator, the cutoff valve and an oil inlet of the pedal pressure reduction valve are connected with oil outlets of the miniature motive power unit, an inlet of the energy accumulator is connected with the motor starting pressure switch and the motor flameout pressure switch, a brake is arranged on a wheel, an oil outlet of the pedal pressure reduction valve is connected with the service brake pressure switch and is connected with an oil inlet of the brake through a pipeline, an oil return opening of the pedal pressure reduction valve is connected with the cutoff valve and is connected with an oil return opening of the miniature motive power unit through a pipeline. The service brake hydraulic system adopts the miniature motive power unit for replacing hydraulic sources and energy accumulator liquid charging valves in the prior art, so the integral structure is simple, the integration degree is high, the cost is low, the arrangement is flexible, the maintenance is convenient, and the operation is safe.

Service brake hydraulic system for electric bag lifting vehicle

The utility model relates to a low and even plate beam of a hydraulic trailer, belonging to the manufacturing field of the hydraulic trailer, which includes a concave plate beam, a hydraulic and brake pipeline and an electric pipeline and is characterized by including two load distributing devices; the load distributing devices are respectively connected on the upper connecting points of an end seat of the concave plate beam through two connecting hinge pins and are respectively connected on the lower connecting points of the end seat of the concave plate beam through two longitudinal feed splicing hinge pins and are fixed on two axis unit vehicles. The utility model has the beneficial effect that the load is transferred to the hydraulic trailer during loading cargoes so as to distribute the load of a middle concave plate beam and increase the carrying tonnage of the low and even plate beam.

Xinchun Xiong

Papers

Independent-steering oil gas suspension system

Proportional synchronous lifting system

Draw bar connection device of trailer

Service brake hydraulic system for electric bag lifting vehicle

Low and even plate beam of hydraulic trailer