49results about How to "Reduce roll angle" patented technology

The invention discloses an independent suspension system which comprises two suspension oil cylinders arranged between the edges of wheels on two sides and a frame respectively, a steering mechanism used for driving the wheels on the two sides to make a turn under the drive action of a power-assisted steering oil cylinder, and two swing rods corresponding to the wheels on the two sides, wherein one end part of each swing rod is hinged to the edge of the wheel on the corresponding side through a spherical hinge, and the other end part of the swing rod is hinged to fixing members fixed below a main speed reducer in a front-rear direction through two spherical hinges respectively. Through the structural improvement, tires mounted on the wheel edges can be positioned, the tire motion in the moving process of a crane is guaranteed to meet the design requirement, and the possible destructive influence of the suspension oil cylinders can be completely avoided, so that the wheels on the left and right sides can reliably and independently move; the adhesion conditions of a road surface are fully utilized, so that the control stability of the complete crane can be improved. Based on the independent suspension system, the invention further provides the crane with the independent suspension system.

The invention discloses an underwater towing body controlled by a front-edge-rotating cylindrical wing. Forced sinking hydrofoils of the underwater towing body adopt symmetrical airfoil profiles, andare symmetrically arranged on the two sides of the front portion of a main cavity, two rotating cylinders are symmetrically arranged at the front ends of the profile faces of the forced sinking hydrofoils relative to the main cavity, and are connected with a speed adjusting motor located inside the main cavity through rotating-cylinder rotating shafts; ducted propellers are symmetrically arrangedon the two sides of the back ends of the forced sinking hydrofoils; a transverse horizontal fixed empennage is arranged at the tai lend of the main cavity, and vertical streamlined flap type rudders are symmetrically arranged at the two ends of the transverse horizontal fixed empennage respectively; a flap is arranged at the tail end of each vertical streamlined flap type rudder, and is connectedwith a flap angle control device. According to the underwater towing body controlled by the front-edge-rotating cylindrical wing, by changing the rotating speeds and the rotating directions of the rotating cylinders at the front ends of the forced sinking hydrofoils, attack angles of the forced sinking hydrofoils can be efficiently and flexibly adjusted, and the aim of changing the motion trail ofthe vertical direction of the towing body is achieved; on this basis, the thrust directions of two-side propellers are changed through assisting, and directional floating and sinking can be achieved.

The invention provides a semi-submersible type lifting platform ballast water system and an operation method thereof. The system comprises lower floating bodies, uprights symmetric left and right and an upper platform, wherein the upper platform is provided with a central control system. The system is characterized in that each lower floating body is internally provided with multiple ballast tanks, one lower floating body is provided with a water pump ballast system, and each ballast tank is provided with a water inflow and outflow valve and an opening communicating with a compressed air ballast system; ballast tanks are arranged in the uprights and provided with drainage valves; the water pump ballast system is provided with a sea valve connected with water inlets of the ballast tanks of the uprights through pipelines; and the compressed air ballast system, a ballast tank liquid level measurement unit, an emergency drainage control unit and a draught measurement unit are arranged in the upper platform. The operation method includes the steps that gravity water inflow and compressed air drainage of the ballast tanks in the lower floating bodies are carried out and drainage operation of the ballast tanks in the uprights and the water pump ballast system is carried out. By the adoption of the system and the operation method, a ballast water pipe system is simplified, the ballast adjusting speed is high, and the requirements for the stability of the platform and the operation safety of a crane are met.

The invention belongs to the technical field of vehicle safety, and particularly relates to a motion air bag type tanker tilting prevention device and system. The device comprises a motion air bag assembly and expansion bracket assemblies. The motion air bag assembly comprises a bag body, an air generator and a motion cart. When a tanker has a tilting speed, the motion cart moves in the same direction as that of the tilting speed. Each expansion bracket assembly comprises an inner arm, an outer arm, a first expansion rod, a second expansion rod and a support wheel, wherein the support wheel is adjusted to rise or fall to the ground through the expansion of the first expansion rod and the second expansion rod. The system comprises a tilting control ECU unit, a steering wheel angle sensor, a wheel speed sensor, the air generator, a cart driver, a first expansion rod driver, a second expansion rod driver and a braking device. In the motion air bag type tanker tilting prevention device and system, the probability of tanker tilting can be effectively controlled by controlling the motion of the motion air bag assembly and driving the support wheel to fall to the ground in time.

The invention discloses an anti-roll adjustable hydro-pneumatic suspension hydraulic system which comprises a suspension hydraulic control unit and an oil pipeline which are arranged on each axle, each suspension hydraulic control unit comprises two groups of suspension control mechanisms on the left side and the right side respectively, and each suspension control mechanism comprises an oil cylinder, a valve piece, a pipeline and an energy accumulator; a rod cavity of an oil cylinder on one side of each suspension hydraulic control unit is communicated with a rodless cavity oil way on the other side of the same unit through a valve piece and a pipeline, and a rodless cavity of each oil cylinder is connected with an energy accumulator of the suspension control mechanism in the same set through a valve piece. The stability of speed control when the suspension oil cylinder bears large load and descends is achieved; meanwhile, the suspension oil cylinder can bear the load borne by a suspension system when a hydraulic system does not act, the hydraulic system is prevented from being overloaded, so that the safety of the hydraulic system and the whole vehicle is protected; vehicle posture adjustment and speed adjustment such as vehicle body lifting, front-back pitching, left-right inclining and vehicle body leveling can be achieved.

The invention belongs to the technical field of vehicle safety, and particularly relates to a telescopic axle type tanker rollover preventing device and system. The tanker rollover preventing device comprises a moving gas bag assembly and telescopic axle assemblies. The moving gas bag assembly comprises a bag, a gas generator and moving trolleys, and when a tanker has a rollover speed, the moving trolleys move in the direction the same as that of the rollover speed. Each telescopic axle assembly comprises an inner disc, an outer disc, hydraulic telescopic shafts arranged between the inner disc and the outer disc in a sandwiched mode and an outer wheel arranged on the outer side of the outer disc, and the distance between the outer wheels and hubs is adjusted through telescoping of the hydraulic telescopic shafts. The tanker rollover preventing system comprises a rollover ECU, a steering wheel angle sensor, a wheel speed sensor, a trolley driver, the gas generator, a hydraulic telescopic shaft driver and a control device. Through movement of the moving trolleys, the bag is driven to move, and the distance between the outer wheels and the hubs is adjusted, so that the tanker rollover probability is effectively controlled.

The invention discloses an automobile electronic anti-overturning control method. The automobile electronic anti-overturning control method includes: using an electronic anti-overturning device to detect and analyze the vehicle velocity V, the transverse acceleration a, the rolling angle Alpha, the pitch angle Beta, and the rolling angular velocity Omega in real time through the corresponding control strategy. The control method is not activated in the following one or more conditions including circuit failure, brake closure, air pressure alarm, uphill and turning, and a bump road, otherwise, the activation condition is met. The control strategy includes: (1) when the rolling angle Alpha and the rolling angular velocity Omega reach rolling preset thresholds; (2) when the rolling angle Alpha and the transverse acceleration a reach rolling preset thresholds; and (3) when the transverse acceleration a and the rolling angular velocity Omega reach rolling preset thresholds. The automobile electronic anti-overturning control method can set the corresponding strategy according to the travelling condition of an automobile on different roads; an advanced gas circuit principle is adopted, brake allocation is more reasonable in working, and the travelling posture of the automobile can be rapidly corrected.

The invention belongs to the technical field of vehicle security, and in particular relates to a telescopic rack type tanker tipping prevention device and a telescopic rack type tanker tipping prevention system. The device comprises an airbag component and a telescopic rack component, wherein the airbag component is inflated between the upper surface of a liquid inside a tank bucket and the tank bucket; the airbag component comprises an airbag body, an air generator arranged inside the airbag body, and a fixed block fixed on the upper surface of the airbag body; the fixed block is fixed with the inner surface at the upper part of the tank bucket; the telescopic rack component comprises an inner arm, an outer arm, a first telescopic rod, a second telescopic rod and a support wheel; the support wheel is adjusted to ascend or land down through the first telescopic rod and the second telescopic rod in a telescopic manner. The system comprises a tipping control ECU, a steering wheel angle sensor, a wheel speed sensor, a gas generator, a first telescopic rod drive, a second telescopic rod drive and a brake device. By adopting the device and the system, the probability that a tanker is tipped is effectively controlled.

The invention relates to a hydro-pneumatic suspension hydraulic control loop device which serves as a hydraulic control device for reinforcing smoothness of vehicles when the vehicles run on different roads, in particular to a hydro-pneumatic suspension control system for a multi-axle vehicle chassis. The hydro-pneumatic suspension control system comprises four hydro-pneumatic suspensions in different communication relations through fifteen two-position three-way electromagnetic valves; the hydro-pneumatic suspensions can also be used for implementing rigid and flexible transformation. According to the system, the four hydro-pneumatic suspensions can be independent of one another and can also be horizontally connected with one another or longitudinally connected with one another in a cross manner by controlling the fifteen two-position three-way electromagnetic valves, so that the system is capable of enhancing the stability of the vehicles, meeting the requirements of multi-axle engineering vehicles for running and operating on different roads, ensuring the smoothness and the stability of the engineering vehicles during running and operating, avoiding the overturn accident and effectively improving the operation efficiency.

The invention discloses a semi-submersible type lifting and disassembling platform and a control method thereof. The platform comprises a port floating body, a starboard floating body, two port stand columns, two starboard stand columns and a deck box, wherein the port floating body and the starboard floating body are each internally provided with a plurality of common water ballast tanks and a plurality of rapid water ballast tanks; the top of the rapid water ballast tank is communicated with a compressed air ballast system, column side water ballast tanks are arranged in the port stand column and the starboard stand column respectively, and the tops of the column side water ballast tanks are communicated with the compressed air ballast system. And water pump ballast systems are arranged on the common ballast water tanks, the rapid ballast water tanks and the column side ballast water tanks. The invention further discloses a control method of the platform. The safety of the platform and workers is ensured to a great extent; a set of emergency response system is established, and what is guaranteed is that when the platform encounters sudden failures in open-sea operation, platform operation command is smooth in real time, emergency rescue is rapid and accurate, and staff deal with the emergency rescue orderly and safely.

The invention belongs to the technical field of agricultural machines, and discloses an adaptive leveling suspension. The adaptive leveling suspension comprises a front cantilever, a rear cantilever, a front tension spring, a rear tension spring, a supporting rod, wheels and a support, wherein one end of the front cantilever, one end of the rear cantilever and one end of the supporting rod are connected in a rotating mode around a point A on the support, the other end of the front cantilever and the other end of the rear cantilever are connected with the wheels in a rotating mode respectively, the other end of the supporting rod is connected with the front tension spring and the rear tension spring, and the other end of the front tension spring and the other end of the rear tension spring are connected with the front cantilever and the rear cantilever respectively. Four or six adaptive leveling suspensions are installed on the same frame through supports and are symmetrically arranged about the central longitudinal plane of the frame according to a set axle base and a set wheel track, and an adaptive leveling chassis is formed. When the chassis passes through an uneven ground, adaptive adjustment of the height is conducted through the suspensions, the variation, caused by terrain changes, of the roll angle and the pitch angle of the chassis is reduced, dynamic leveling of the chassis is achieved, and the working requirement of an agricultural power chassis on a hilly slope is met.

The invention relates to a vehicle and a transverse stabilizer bar system thereof. The transverse stabilizer bar system comprises a front transverse stabilizer bar, a rear transverse stabilizer bar, afront hydraulic cylinder and a rear hydraulic cylinder. A linkage oil way is connected between the front hydraulic cylinder and the rear hydraulic cylinder, and the linkage oil way comprises a firstoil way connected to a rod cavity and further comprises a second oil way connected to a rodless cavity. When the vehicle runs, the front hydraulic cylinder and the rear hydraulic cylinder of the linkage oil way move in the same direction to be relatively locked, left-right shaking of the vehicle can be reduced, the roll angle of the vehicle can be reduced, and the running smoothness and handling stability can be improved. The front hydraulic cylinder and the rear hydraulic cylinder have the trend of reverse motion to be relatively free, and the trafficability and running safety of the vehicleare improved. The structure is simple.

The invention relates to a double-channel hydraulic motor type active stabilization rod control system and a control method thereof. The double-channel hydraulic motor type active stabilization rod control system comprises a steering wheel turn angle sensor, a vehicle speed sensor, a transverse acceleration sensor and an oil level sensor, the output ends of the four sensors are connected with the signal input end of a control unit, the signal output end of the control unit is connected with the input end of each of an electromagnetic reversing valve drive circuit of a front channel, a front channel pressure control valve drive circuit, an electromagnetic reversing valve drive circuit of a rear channel and a rear channel pressure control valve drive circuit, a hydraulic motor of a hydraulic system of the front channel outputs torque signals to a front channel stabilization rod, and a hydraulic motor of a hydraulic system of the rear channel outputs torque signals to a rear channel stabilization rod. The double-channel hydraulic motor type active stabilization rod control system and the control method thereof use the control unit to generate signals to control the electromagnetic reversing valves and pressure control valves in the hydraulic systems to act to drive the hydraulic motors to rotate, anti-skewing moment is output to enable the skewing angle of the vehicle to be reduced to keep the horizontal state of the carriage, and the riding safety and comfort are improved.

A rear suspension fork device for a motile multifunctional vehicle (SUV) is achieved by the following proposal: the upper side of the lower swing-arm of the present vehicle five-link suspension fork and the lower side of the vehicle frame longitudinal beam are respectively provided with a spring seat; the upper and the lower ends of the spring are respectively connected to the spring seat. The rear suspension fork device has simple and reasonable structure as well as easy processing, and can effectively lower the centroid height, increase the spring distance, and improve the operation stability and the drive security; the rear suspension fork device can be used by matching with various SUV vehicles so that the industrialized production can be achieved, and the rear suspension fork device can be used as the renewal product of rear suspension fork of existing SUV vehicles.

The invention discloses a suspension structure below a train of a motor train unit, which comprises an upper fork arm, a lower fork arm, a wheel bearing, a first shock strut, a second shock strut, a disc and a cross rod, wherein the upper fork arm is connected with the upper end of the disc, and the lower fork arm is connected with the lower end of the disc; one end of the cross rod is connected with the lower end of the disc; each of the first shock strut and the second shock strut is composed of a helical spring and a shock absorber, and the helical spring is sleeved on the external surface of the shock absorber; one end of the first shock strut is connected with the bottom end of the disc, and the other end of the first shock strut is upward; and the lower end of the second shock strut is connected with the cross rod, and the upper end of the second shock strut is connected with the first shock strut. The suspension structure disclosed by the invention has the technical effects of reasonable structural design and higher durability and reliability, the lateral inclination of the train is relatively small in a turning process, and the train is not easy to slope downward in an emergency braking process.