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1605 results about "Transfer case" patented technology

A transfer case is a part of the drivetrain of four-wheel-drive, all-wheel-drive, and other multiple powered axle vehicles. The transfer case transfers power from the transmission to the front and rear axles by means of drive shafts. It also synchronizes the difference between the rotation of the front and rear wheels, and may contain one or more sets of low range gears for off-road use.

Fracturing transmission and high-pressure discharging system

The invention relates to a fracturing transmission and high-pressure discharging system. The fracturing transmission and high-pressure discharging system comprises a chassis and is characterized in that a high-power engine, a transfer case, a plurality of variable displacement plunger pumps and a double-acting fracturing pump are arranged on the chassis, the output end of the high-power engine is connected with the input end of the transfer case, the output end of the transfer case comprises a plurality of power take-off ports, and each power take-off port is connected with one variable displacement plunger pump; the variable displacement plunger pumps drive the double-acting fracturing pump through a hydraulic system. The fracturing transmission and high-pressure discharging system further comprises a system radiator and a heat dissipation plunger pump used for driving the system radiator, and the heat dissipation plunger pump is connected with one power take-off port of the transfer case. The power take-off ports of the transfer case and the variable displacement plunger pumps are arranged annularly. The fracturing transmission and high-pressure discharging system has the advantages that hydraulic driving replaces mechanical transmission, and working vibration is reduced; the layout space of a whole vehicle is saved, and meanwhile, operating efficiency and the stability of the whole vehicle are improved.
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD

Straddle type monorail operation vehicle with structure comprising two pairs of wheels

The invention relates to an urban rail operation vehicle and in particular relates to a straddle type monorail operation vehicle with a structure comprising two pairs of wheels. The straddle type monorail operation vehicle comprises a carriage, a steering frame, an engine, a transfer case and a walking pump, wherein the steering frame is connected with an underframe of the carriage through a central pin dragging device; the steering frame comprises a framework, a secondary suspension device and a dragging device; the overall framework is of an II-shaped full-steel installed and welded plate type box structure and comprises a side beam, end beams connected to two ends of the upper part of the side beam and two vertical beams which are connected between the end beams; a motor bracket is fixed between the upper part of the side beam and the corresponding vertical beam; two independently-driven walking wheel assemblies are mounted on two motor brackets; four guide wheel assemblies are mounted on two sides of the middle part of the side beam; two stabilizing wheel assemblies are mounted on two sides of the lower part; the secondary suspension device adopts a secondary steel coil spring assembly. The straddle type monorail operation vehicle can reasonably meet the circuit requirements of monorail PC beams and is high in safety coefficient, excellent in dragging performance, simple and compact in structure, easy to maintain, stable in running and excellent in brake performance.
Owner:太原中车时代轨道工程机械有限公司

Hybrid dust absorption environmental sanitation vehicle and hybrid sweeping environmental sanitation vehicle

InactiveCN101392506AMeet the uncertain long-term continuous operation needsMeet power needsRoad cleaningTransfer caseVehicle frame
The invention relates to a hybrid vacuum sweeper. A chassis is provided with an engine, a gear transfer case, a silicon rectifying generator, a storage battery, a power converter, a motor, a dustbin, a suction tube, a suction cup, a fan, a water tank and a water pump. The engine drives the silicon rectifying generator and the fan respectively. The silicon rectifying generator is connected with the power converter and the storage battery to output generated electric current. The power converter is connected with the motor to drive a rear axle shaft to drive the vacuum sweeper to run. The fan sucks dust and garbage on the ground in front of the suction cup into the dustbin through the dustbin, the suction tube and the suction cup. The water pump pumps water from the water tank to control the dust in the suction tube and the suction cup by a wet method. In the invention, a hybrid drive technology is applied to a special urban environment sanitary vehicle with vehicle-mounted operating devices, and the special vehicle has an oil-saving effect due to the use of a single engine as well as good operation effects; and a hybrid drive mechanism continuously generates electricity and overcomes the drawback that an electrical vehicle can not work for a long time due to the limitation from the capacity of the storage battery.
Owner:赵国贵

Full-automatic liquid adding device for fracturing construction and adding calibration method

The invention belongs to the technical field of fracturing construction mechanization, and particularly provides a full-automatic liquid adding device for fracturing construction and an adding calibration method. The full-automatic liquid adding device comprises a prying frame, an engine, a transfer case, a hydraulic device, a liquid adding pump, a metering calibration tank, a liquid additive tank, a liquid supply pump and a control unit, wherein the input ends of the engine, the transfer case and the hydraulic device are sequentially connected; the output end of the hydraulic device is connected with the liquid supply pump and the liquid adding pump; the liquid supply pump is connected with an inlet of the liquid additive tank; an outlet of the liquid additive tank is sequentially connected with inlets of the metering calibration tank, the liquid adding pump and the liquid additive tank; the control unit is electrically connected with the engine, the transfer case, the hydraulic device, the liquid adding pump, the metering calibration tank, the liquid supply pump and the liquid additive tank; and the current situation that in the fracturing construction process, the liquid additive adding precision is large in adding difficulty and discontinuous is avoided, the mechanization and automation degree of fracturing construction is improved, meanwhile, the construction quality and potential safety hazards are effectively eliminated, and the construction success rate is increased.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Single-engine washing and sweeping vehicle

The invention discloses a single-engine washing and sweeping vehicle. The single-engine washing and sweeping vehicle comprises a chassis, a full-power power takeoff, an auxiliary gearbox, an operation walking system, an auxiliary vehicle frame, a transfer case, a fan assembly, an oil pump assembly, a high-pressure water pump assembly, a box body, a disc brush, a suction opening and the other operation devices. The full-power power takeoff, the auxiliary gearbox and the operation walking system are arranged in a chassis transmission system, the transfer case, the operation devices and the box body are arranged on the auxiliary vehicle frame, power of a chassis engine is driven to the transfer case through the full-power power takeoff and a transmission shaft, three output openings of the transfer case drive the various operation devices respectively, and the operation walking system comprises a walking variable pump, a walking motor and an accessory device. In the working process, the power takeoff of the chassis gearbox drives the variable pump, and a closed type system is formed by the variable pump and the walking motor. The chassis engine is utilized for achieving chassis walking and driving in the driving and operation process of the washing and sweeping vehicle, and high-speed stable rotating speed of the operation device and low-speed and variable-speed walking control of the chassis are ensured.
Owner:XUZHOU XUGONG ENVIRONMENTAL TECH CO LTD
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