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1990 results about "Air spring" patented technology

Air pressure self-adaptive control method and device of seat suspension and computer readable medium

The invention relates to an air pressure self-adaptive control method and device for a seat suspension and a computer readable medium, the seat suspension is connected with a seat body, an air spring is arranged on the seat suspension, and the method comprises the steps that in response to the situation that a passenger sits on the seat body, the air pressure self-adaptive control device is arranged on the seat body; and the air quantity of the air spring is adjusted according to the deviation between the current height of the seat suspension and the preset balance position, so that a passenger borne by the seat body moves to the preset balance position, and the air spring is in a pressure maintaining state meeting the design requirement. The air volume of the air spring in the seat suspension can be dynamically and adaptively adjusted according to the weights of different passengers, the function that one person has one air pressure is achieved, the transmission rate of vibration is effectively reduced, and the vibration reduction effect of the seat suspension, the riding comfort and stability of the passengers and the universality and environmental adaptability of a seat suspension system are improved.
Owner:上海新纪元机器人有限公司

Tool for assembling air spring sealing assembly

The invention discloses a tool for assembling an air spring sealing assembly, and the tool is characterized in that the tool comprises a positioning mechanism which is used for positioning and fixing an air spring body; the press fitting mechanism comprises a guide sleeve and a pressure head; the guide sleeve is provided with a vertically-through guide cavity, and the guide sleeve is driven by a first driving piece to move up and down and can cover the mounting end part in the down stroke; the pressure head is coaxially arranged above the guide sleeve, and is driven by a second driving piece to independently move up and down; the clamp spring guide-in seat is arranged at the top of the guide sleeve, a guide-in cavity penetrating up and down is formed in the clamp spring guide-in seat, and the guide-in cavity is coaxially communicated with the guide cavity; and the snap spring pre-tightening mechanism is used for performing radial extrusion on the snap spring placed at the port position of the guide-in cavity, so that the snap spring falls into the guide-in cavity after being tightened. The press-fitting device has the advantages that the press-fitting of the sealing cover and the snap spring is combined in one step, the problems of deflection, popping and the like of the snap spring in the assembling process are effectively solved, operation is simple and safe, and assembling efficiency is high.
Owner:NINGBO TUOPU IND AUTOMATION CO LTD

Free boundary supporting system for horizontal modal test of large rocket

The invention provides a free boundary supporting system for a horizontal modal test of a large rocket. The free boundary supporting system at least comprises a rack car, a pressure container, a free membrane type air spring and a control assembly. The rack car at least comprises a bottom truss and a top truss, and the bottom truss is provided with a moving device; the pressure container is specifically a gas storage container located between the bottom truss and the top truss, and the top of the pressure container is provided with a sealing flange connector. The free membrane type air spring is arranged on the upper end face of the top truss, the bottom of the free membrane type air spring communicates with the pressure container through the sealing flange connector, and a bracket used for supporting a rocket is arranged on the top of the free membrane type air spring. The control assembly at least comprises an acquisition module, a controller and an execution module which are in communication connection in sequence; freedom degrees of translation, rotation and torsion of the rocket in a modal test are provided by the free membrane type air spring.
Owner:BEIJING LANDSPACETECH CO LTD

Air springs for bicycle components

Air springs for bicycle components are described herein. An example air spring includes a tube, a first sealhead coupled to the tube, a second sealhead coupled to the tube such that a sealed pressure chamber is formed in the tube between the first and second sealheads, and a seal coupled to the second sealhead. The second sealhead and the tube are coupled along an axial interface locking length. The tube has a vent port. The seal is spaced from the vent port by a port seal gap that is less than the axial interface locking length such that as the second sealhead is being decoupled from the tube, the seal loses sealing contact with the inner surface to enable at least a portion of the sealed pressure chamber to be equalized with atmospheric air before the second sealhead is fully decoupled from the tube.
Owner:SRAM LLC

Double-piston membrane type air spring

A double-piston membrane type air spring comprises a shell, an upper installation base used for being fixedly connected with a vehicle body and a lower installation base used for being fixedly connected with a suspension swing arm, the upper installation base is provided with a first piston installation column extending downwards, and a first piston is fixedly arranged on the first piston installation column. The lower mounting seat is provided with a second piston mounting column extending upwards, a second piston is fixedly arranged on the second piston mounting column, a space distance is reserved between the first piston mounting column and the second piston mounting column, and a rubber air bag is arranged between the first piston and the second piston and located in the shell. The upper end of the rubber air bag is fixedly connected with the first piston installation column, the lower end of the rubber air bag is fixedly connected with the second piston installation column, the axial length ratio of the first piston installation column to the second piston installation column is 2: 1-4: 1, the axial length of the first piston is the same as that of the first piston installation column, and the axial length of the second piston is the same as that of the second piston installation column.
Owner:辰致科技有限公司 +2

Photovoltaic curtain wall pressure resistance detection device and detection method

The invention discloses a photovoltaic curtain wall pressure resistance detection device and detection method, and relates to the related field of photovoltaic curtain wall detection. According to the invention, through the arrangement of the limiting strips, stable positioning of the photovoltaic curtain wall before testing is ensured, and testing errors caused by offset are avoided; the displacement mechanism is matched with the pressure detection device, accurate pressing and real-time detection of test pressure are achieved, so that the reliability of pressure resistance data is guaranteed, when the curtain wall is broken, the supporting plate can be rapidly overturned and in butt joint with a collection station under linkage of transmission structures such as a driving motor, a synchronous belt and a pull arm, the broken curtain wall is smoothly poured, and the production efficiency is improved. Meanwhile, the supporting plate is automatically reset under the action of the air spring, residual fragments are removed in cooperation with external blowing equipment, secondary pollution and clamping stagnation are avoided, and the cleanliness of the testing environment is guaranteed.
Owner:FAR EAST PHOTOVOLTAIC TECHNOLOGY (GUANGDONG) CO LTD

Normally open solenoid valve for automobile multi-cavity air spring

The utility model discloses a normally open solenoid valve for an automobile multi-cavity air spring, which comprises a shell, a framework arranged in the shell, an enameled wire wound on the outer side of the framework, a magnetism isolating tube arranged in an inner hole in the middle of the framework, a movable iron core arranged in the magnetism isolating tube, and a cushion block assembly arranged between the magnetism isolating tube and the end part of the movable iron core, an electrical interface is installed at the end of the shell, a valve seat is installed at the second axial end of the shell, a base is installed between the valve seat and the framework, an ejector rod piece capable of moving axially is arranged at the position, corresponding to the valve port, between the base and the valve seat, the first end of the ejector rod piece penetrates through the base to abut against the movable iron core, and a connecting socket is arranged at the end of the framework. The connecting socket is connected with a PIN needle in the electrical interface, a limiting claw is arranged at the side end of the PIN needle, and after the limiting claw is bent, the enameled wire is pressed and fixed on the PIN needle and is subjected to spot welding. The electromagnetic valve can solve the problems that an electric power connection structure of an existing electromagnetic valve is complex, and power connection is not reliable.
Owner:NINGBO TUOPU GROUP CO LTD

Membrane type air spring parameter identification and dynamic mechanical property calculation method and medium

The invention discloses a membrane type air spring parameter identification and dynamic mechanical property calculation method and a medium. The method comprises the following steps: establishing an air spring parameter identification and mechanical property calculation model; acquiring static performance data of the air spring; acquiring structural calculation parameters of the air spring; acquiring quasi-static performance data of the air spring; according to the static and quasi-static mechanical property test results of the air spring, the structural calculation parameters and the thermodynamic parameters of the air spring can be identified, the identified parameters can be effectively applied to the mechanical property calculation model of the air spring to calculate the dynamic characteristics, the test times can be effectively reduced, and the test efficiency is improved. And a reference basis is provided for design optimization of the air spring.
Owner:SOUTH CHINA UNIV OF TECH

Jam Shock Relief Mechanism for Gas Spring Fastening Tool

A power tool includes an air spring cylinder, a piston movably positioned within the air spring cylinder along a longitudinal axis of the air spring cylinder and a driver blade fixedly attached to the piston. The power tool includes a lifter that is attached to the piston via an elastic member so as to extend side by side with the driver blade. The elastic member serves as a jam bumper that absorbs jam shock due to abnormal tool operation.
Owner:ROBERT BOSCH GMBH

Testing equipment and testing system for air supply unit of air suspension

The invention relates to the technical field of air supply unit testing of an air suspension, in particular to air supply unit testing equipment and a testing system of the air suspension, and the testing equipment comprises a high-low temperature damp-heat alternating testing box, four simulation air spring load devices, an industrial personal computer and a first testing air path; the simulated air spring load device is used for simulating the load of an automobile body on the air spring; the gas supply unit is used for testing in a test room of the high-low temperature damp-heat alternating test box, and the high-low temperature damp-heat alternating test box, the gas supply unit and the first test gas path are all controlled by the industrial personal computer; the first test gas circuit is used for testing the gas supply unit. According to the invention, the air supply unit to be tested of the air suspension is tested in a simulated extreme environment, and the weight is increased or decreased to simulate the load of the vehicle body on the air spring, so that the core capabilities of pressure-flow control, environmental adaptability, reliability and the like of the air supply unit are effectively and systematically verified. The verification of the air supply unit is directly related to the safety, comfort and durability of the automobile.
Owner:DAYE PUCHANG INTELLIGENT TECHNOLOGY CO LTD

Height adjustment precision calibration method based on steady-state air suspension system

The invention relates to a height adjustment precision calibration method based on a steady-state air suspension system, which is characterized in that the method is static (not influenced by external force), and the pressure difference between the input end and the output end corresponding to the height of a certain air spring is constant (the input end is an air pump and an air storage tank during ascending, the output end is the air spring, and the input end and the output end are opposite during descending); when the sensor rises or falls to a certain target height, the overshoot is constant, and the descending adjustment threshold calibration process of the certain target height comprises the following steps: (1) rising and falling to Hi for many times, recording the height values hi drop 1, hi drop 2, hi drop 3,..., hi drop n (n can be determined by a tester, for example, n = 10) of the sensor after the adjustment is finished and the height is stable, and for a multi-air-spring system, determining the height of the sensor according to the height of the sensor; the absolute values of a plurality of height sensors can be calculated to serve as height adjustment results, a simpler model and a calibration method with higher operability are adopted, and the precision control over height adjustment is more direct and effective.
Owner:NINGBO TUOPU GROUP CO LTD

Air spring with multiple bearings, automobile suspension and mounting method

The invention discloses an air spring with multiple bearings, an automobile suspension and an installation method.The air spring comprises a bearing installation base and a lower installation base, the lower installation base is arranged at the bottom of the bearing installation base, an automobile body installation base is arranged outside the bearing installation base, and a first bearing is arranged at the top of the bearing installation base; by the adoption of the air spring with the multiple bearings, the design requirement for bearing lateral force and torsional force of the air spring is met, and the sealing performance is reliable.
Owner:WUHU BETHEL AUTOMOTIVE SAFETY SYST CO LTD

Vibration isolation air floating platform based on optical feedback and implementation process of vibration isolation air floating platform

The invention provides a vibration isolation air floating platform based on optical feedback and an implementation process of the vibration isolation air floating platform, and relates to the field of optical imaging precise instruments. According to the vibration isolation air floating platform based on the laser ranging feedback, the laser ranging sensor is adopted as a monitoring feedback element of the air spring, and the vibration isolation air floating platform based on the laser ranging feedback is designed. The levelness deviation (including being parallel to the reference horizontal plane and forming a specific included angle with the reference horizontal plane) of the current air floating platform can be monitored in real time, the vibration isolation air floating assembly can be controlled in a remote mode, and therefore fine adjustment of the supporting table top is achieved. Moreover, the vibration isolation air flotation system can be flexibly assembled, is small in size, can serve as a supporting assembly to be integrated into an optical imaging precise instrument system, has the two technical advantages of buffering vibration isolation and remote control at the same time, and can be widely applied and popularized.
Owner:CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST

Heavy air suspension truck anti-roll control method based on extended zero moment point

The invention discloses a heavy air suspension truck anti-roll control method based on an extended zero moment point, and the method comprises the following steps: S1, building a virtual prototype model of a heavy truck, and obtaining a centroid pitch angle, a roll angle, a yaw angle and accelerations in X, Y and Z directions under a vehicle driving condition in real time; s2, based on an extended zero moment point theory, constructing a vehicle body attitude evaluation index based on extended zero moment point coordinates; s3, calculating a vehicle body posture evaluation index in real time under the vehicle driving condition, and judging whether the vehicle rolls or not; and S4, on the basis of a layered architecture control strategy, the upper layer calculates air spring force needed by anti-roll based on fuzzy PID, the lower layer inflates and deflates the air spring to output the needed air spring force, and the posture of the vehicle body is balanced. According to the method, the stability of the vehicle body can be evaluated in real time through the extended zero moment point theory, the roll risk is accurately judged, anti-roll measures are taken, and the driving stability is remarkably improved.
Owner:WENZHOU UNIV

Air spring upper supporting structure, air spring and vehicle

The invention provides an air spring upper supporting structure, an air spring and a vehicle, and belongs to the technical field of suspension systems. The scheme that the top rubber, the blocking cover and the check ring are arranged on the upper supporting body is achieved through the arrangement of the installation groove, the reliability of matching with the piston rod can be guaranteed, and the compactness of the upper supporting structure of the air spring can be improved. The threaded sleeve is arranged in the mounting hole, so that structural damage to the area where the mounting hole is located can be effectively avoided, and the service life of the upper supporting structure of the air spring is prolonged. By arranging the heat insulation pad, the problem that the whole air spring is seriously heated due to the fact that the upper supporting body absorbs excessive heat is solved, and the service life of a rubber part in the air spring is shortened. The arc-shaped flow guide faces are arranged at the corners of the first air channel and the second air channel, so that vortexes are avoided, friction is reduced, and the problem of abnormal sound generated by air flowing is solved. Double connection of the threads and the positioning pins is adopted between the mounting hole and the threaded sleeve, so that the anti-loosening strength and the torsional strength of the threaded sleeve are enhanced, and the threaded sleeve is prevented from loosening.
Owner:爱科智能科技有限公司

Apparatus for and method of controlling vehicle suspension

Proposed are an apparatus for and a method of controlling a vehicle suspension. The apparatus includes a sensor configured to acquire at least one of information on a road surface in front of a vehicle and state information of the vehicle; and a processor configured to predict a vehicular behavior based on the information acquired through the sensor and actuator information and to control at least one of a ride height of the vehicle, stiffness of an air spring, and a damping force of a damper based on the predicted vehicular behavior.
Owner:HYUNDAI MOBIS CO LTD +1

Automatic feeding device and method for integrally forming air springs

The automatic feeding device and method for integrated air spring molding described in this invention proposes a feeding and calibration device specifically for platform-type molding machines. This device achieves directional feeding through continuous, automated control of sheet loading and calibration positioning, enabling sheet introduction and placement without manual intervention or assistance. This approach aims to automate the air spring molding process, improve the bond density of the preform, and enhance the performance of the air spring. The automatic feeding device for integrated air spring molding includes a suction assembly driven by a six-axis robot to oscillate the transfer fabric, as well as a visual inspection and positioning assembly.
Owner:QING KE YU YUAN (QING DAO) ZHI NENG KE JI YOU XIAN GONG SI

Base structure of air spring

The utility model discloses a base structure of an air spring, which comprises a base body and a backing ring, a plurality of elastic fasteners are circumferentially distributed on the inner wall of the lower portion of the base body in a surrounding manner, and the elastic fasteners protrude towards the center of the base body. The upper end of the backing ring can be clamped at the lower end of the elastic buckle, then the backing ring can be clamped in the base body, and the upper end face of the clamped backing ring is lower than or flush with the upper end face of the base body. Therefore, the connection of the base body and the backing ring does not occupy the axial space, the minimum thickness of the air spring base can reach a design value of 3mm, the overall height of the air volume of the air spring can be increased, and the volume is increased to the maximum extent; and the height size gap between the piston and the backing ring can be maximized, so that the air spring is prevented from bending up and down and interference between the backing ring and the piston is avoided.
Owner:安徽鼎瑜智能科技有限公司

Continuous automatic welding equipment for air spring

The invention relates to the technical field of air spring machining, in particular to air spring continuous automatic welding equipment which comprises a rack and a welding manipulator body installed on the rack, the rack is provided with a loading module used in cooperation with the welding manipulator body, and the loading module comprises clamping equipment used for fixing an air spring; the clamping device comprises a bottom plate fixed to the upper surface of the rack. According to the air spring continuous automatic welding equipment, the design that the two portal frames are matched with the lower baffle is adopted, when a workpiece is placed into the loading table, one portal frame is in an extending state under the action of the guide cylinder and the first guide wheel, and the lower baffle is just located below the workpiece to bear the workpiece and prevent the workpiece from falling off; in the overturning process, the movement of the two portal frames is controlled through the second guide groove, the first guide wheel and the connecting arm on the guide cylinder, so that the workpiece is stably supported by the lower baffle plate all the time in the overturning process, the position stability of the workpiece in each process is ensured, and the welding and cleaning quality is guaranteed.
Owner:NINGBO BAORUI AUTO PARTS CO LTD

Offshore floating photovoltaic flexible connection structure

The utility model relates to the field of offshore floating photovoltaic technology, and discloses an offshore floating photovoltaic flexible connection structure, which comprises four buoyancy tanks arranged at equal intervals, mounting grooves are arranged around the buoyancy tanks, hinge shafts are fixedly mounted on the inner walls of the mounting grooves, flexible assemblies are arranged among the inner sides of the four buoyancy tanks, and the flexible assemblies are connected with the mounting grooves. A photovoltaic panel is fixedly installed at the top of the buoyancy tank, an anchor chain is movably installed at one corner of the buoyancy tank through a hinged shaft, and an anchorage device is movably installed at the other end of the anchor chain. During rigid connection, the backward pulling fixing ring compresses the pushing spring, and then the inserting rod is rotated to be aligned with the earhole plate; when the buoyancy tank is moored, the force applied to the fixing ring is released, the pushing spring drives the inserting rod to be inserted into the lug hole plate, the ball sleeve and the ball head can be locked, and then flexible connection between the connecting rod and the air spring is changed into rigid connection, so that collision between the adjacent buoyancy tanks during mooring is reduced, and the service life of the buoyancy tanks is prolonged.
Owner:YANTAI UNIV

Automobile suspension system

The utility model discloses an automobile suspension system. Comprising an angle module mounting plate, an upper control arm, a lower control arm, an air spring and electronic damper CDC assembly, a steering module and a steering knuckle. The top of the steering knuckle is directly connected with a steering module, the upper portion and the lower portion of the steering knuckle are connected with an angle module mounting plate through an upper control arm and a lower control arm respectively, an air spring and an electronic damper CDC assembly are further connected between the lower control arm and the angle module mounting plate, and the steering knuckle is fixedly mounted on a hub structure. And a tire rim and a brake are mounted on the hub structure. The suspension system supports four-wheel independent driving and four-wheel independent steering, is used for achieving the functions of in-situ steering, horizontal transverse moving and the like of the whole vehicle, and achieves ultra-small turning radius, large turning angle, reliable structure and performance and high expansibility during turning.
Owner:ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS CO LTD

Vibration platform for prefabricated part pouring

The invention belongs to the technical field of prefabricated part pouring, and particularly relates to a vibration platform for prefabricated part pouring. Comprising a conveying roller way, a material box, a vibration platform and a plurality of adjusting devices, the vibration platform is connected with a rack of the conveying roller way through an air spring, a rectangular through hole is formed in the top end of the vibration platform, the adjusting devices are arranged in the rectangular through hole and comprise hydraulic cylinders and U-shaped adjusting plates, and the hydraulic cylinders drive the U-shaped adjusting plates to adjust the height of the material box. Through cooperative control of the adjusting device driven by the hydraulic cylinder and the displacement sensor, automatic adjustment of the levelness of the material box is achieved. According to the structure, no matter what working condition is, the bottom face of the material box can be completely attached to the vibration transmission face of the vibration platform, and uniform and efficient vibration energy transmission is achieved. According to the vibration platform, the technical problems that an existing vibration platform inclines due to the nonlinear characteristic of a supporting device, and contact of the workbins is uneven are solved, it is guaranteed that pouring materials are even and dense, and the finished product quality of prefabricated parts is effectively improved.
Owner:YUNNAN YUNLU LVYUAN HUIBANG ENG TECH CO LTD

Method, device and equipment for enabling vehicle to pass through steps and readable storage medium

The invention discloses a method, device and equipment for a vehicle to pass through steps and a readable storage medium, and the method for the vehicle to pass through the steps comprises the steps that when it is recognized that the steps appear in front of the vehicle, whether the vehicle can pass through the steps or not is judged; when it is judged that the vehicle can pass through the steps, the moment when each wheel of the vehicle makes contact with the steps is predicted, and the adjustment amount of each wheel air spring of the vehicle is determined; for each wheel of the vehicle, the air spring descending adjustment amount of the wheel is controlled at the moment that the wheel is in contact with the step, so that the trafficability of the vehicle is improved. Through the application, for each wheel of the vehicle, the height of the air spring of the wheel is reduced at the moment when the wheel is in contact with the step, so that the friction force of the wheel can be increased by adjusting the gravity center of the vehicle and increasing the load bearing of the wheel, the vehicle can pass the step more easily, and the power performance of the vehicle does not need to be enhanced; the step passing performance of the vehicle can be improved only by actively adjusting the height of the wheel air spring.
Owner:DONGFENG MOTOR GRP

Vehicle control method, device, equipment and medium

The invention relates to the field of vehicle control, in particular to a vehicle control method, device and equipment and a medium. When the vehicle speed is larger than the preset vehicle speed, whether the vehicle enters the crosswind area or not is actively recognized, the early warning wind power level is obtained, and the crosswind risk can be sensed in advance. Whether the crosswind pre-control function is activated or not is determined according to whether the vehicle enters the crosswind area or not and the early-warning wind power level, and the phenomenon that in the prior art, measures are taken after the vehicle deviates due to crosswind is avoided. After the pre-control function is activated, working parameters of a vehicle chassis control part are adjusted in time, for example, steering hand force becomes heavy, the height of an air spring is reduced, the rigidity is increased and the like, corresponding preparation is actively made before crosswind influences the vehicle, the stability of the vehicle is enhanced, the situation that the vehicle seriously rolls and deviates from a driving route due to the crosswind is effectively avoided, and the service life of the vehicle is prolonged. And the driving safety is improved.
Owner:ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +2

Power-on self-test method and system for closed air suspension system

The invention discloses a power-on self-test method and system for a closed air suspension system, and the method comprises the steps: starting self-test after receiving a vehicle power-on signal, opening an air path switching valve RV2 and an air escape valve VV, enabling a pressure sensor pipeline to be communicated with the atmosphere, and generating an initial air path detection result; based on the initial gas path detection result, closing a gas release valve VV and opening a gas path switching valve RV1 to enable a pressure sensor pipeline to be communicated with the gas storage tank, and generating a gas path detection result of the gas storage tank; on the basis of the air storage tank air path detection result, an air path switching valve RV1 is closed, all air spring distribution valves ASV1 to ASV2 are sequentially opened, and an air spring detection result is generated; and on the basis of the air spring detection result, all the distribution valves are closed, the air path switching valve RV2 is opened, the air pump is started, a pressure value is read after waiting for a preset time T4, when the pressure value is larger than a threshold P7, it is judged that the air pump is normal, and a system self-inspection result is generated. According to the embodiment of the invention, comprehensive self-inspection of the system can be quickly completed when the vehicle is powered on, and the reliability of the vehicle is improved.
Owner:DAYE PUCHANG INTELLIGENT TECHNOLOGY CO LTD

Air suspension system and vehicle

The application provides an air suspension system and a vehicle. The air suspension system comprises a first air spring, a second air spring and a gas storage component, and further comprises: a first electromagnetic switch valve connected to the first air spring; a second electromagnetic switch valve connected to the second air spring; a third electromagnetic switch valve connected between the first electromagnetic switch valve and the gas storage component; and a fourth electromagnetic switch valve connected between the second electromagnetic switch valve and the gas storage component. When the first electromagnetic switch valve, the second electromagnetic switch valve, the third electromagnetic switch valve and the fourth electromagnetic switch valve are all powered on, the first electromagnetic switch valve and the third electromagnetic switch valve form a first gas path with the gas storage component, the second electromagnetic switch valve and the fourth electromagnetic switch valve form a second gas path with the gas storage component, the gas storage component inflates the first air spring through the first gas path, and the gas storage component inflates the second air spring through the second gas path, so that the body height of the front axle and the rear axle of the vehicle can be synchronously lifted.
Owner:YINWANG INTELLIGENT TECHNOLOGIES CO LTD

Macpherson suspension air spring assembly and vehicle

The invention discloses a Macpherson suspension air spring assembly and a vehicle, relates to the technical field of automobile suspension vibration reduction, and solves the problem that the service life of an air bag is affected due to non-uniform stress in the working process of the air bag because a piston is eccentrically arranged and the central axis of the piston is intersected with the central axis of a vibration damper strut. The Macpherson suspension air spring assembly comprises a mounting assembly and a spring assembly, the upper end of the air bag is connected with the lower end of the mounting assembly in a slope matching manner; the central axis of the piston and the central axis of the air bag are eccentrically arranged; the damper assembly comprises a piston rod, the upper end of the piston rod is connected with the installation assembly, the lower end of the piston rod is connected with the piston in a penetrating and inserting mode, and the central axis of the piston rod and the central axis of the piston are arranged in an eccentric mode. The vehicle comprises the Macpherson suspension air spring assembly. Due to the eccentric design of the piston and the piston rod, the stress change of the central axis of the air bag is more uniform and relieved, and the service life of the air bag is prolonged.
Owner:ZHEJIANG MEILI HIGH TECH

Self-adaptive tuning inerter damping device and method for suppressing vertical micro-vibration of structure

PendingCN121916262ASpringsVibration suppression adjustmentsDynamic modelsVibration mitigation
The invention relates to a self-adaptive tuning inerter damping device and method for suppressing vertical micro-vibration of a structure. The self-adaptive tuning inerter damping device comprises a bearing base, a tuning mass block, a vibration system connecting the bearing base and the tuning mass block, a pneumatic control system and an intelligent measurement and control system. The vibration system is formed by connecting an outer side air spring set and a central air spring in series with a hydraulic inerter unit, an adjustable damping branch and a fixed inerter branch which are connected in parallel are integrated in the hydraulic unit and are respectively provided with an electro-hydraulic proportional valve and a spiral pipe type hydraulic inerter, so that adjustable damping and mass amplification are realized. The pneumatic system adjusts the air pressure of each air spring through an independent air path and a proportional valve so as to change the rigidity. An intelligent system monitors vibration through a sensor, a central controller identifies excitation frequency and optimizes parameters based on a kinetic model, and rigidity and damping are synchronously adjusted. According to the invention, the problem that a mechanical inerter is insufficient in response to micro-vibration is solved, the defects that a traditional passive device is narrow in frequency band and easy to detune are overcome, and broadband, self-adaptive and high-performance suppression of vertical micro-vibration of a structure is realized.
Owner:SHANGHAI RESEARCH INSTITUTE OF BUILDING SCIENCES CO LTD

Anti-swing mechanism for tower crane

The invention relates to the technical field of cranes, in particular to an anti-swing mechanism for a tower crane, which comprises a lifting mechanism, a lifting rope is arranged at the lifting end of the lifting mechanism, and a buffer mechanism for buffering the lifting rope is further arranged on the lifting mechanism; the anti-swing effect of the tower crane is effectively improved through a differential air supply strategy, a cam drives a piston barrel to supply air massively at low frequency during rope winding, the rigidity of an air spring is rapidly improved, inertia impact of a hung object is counteracted, and the swing amplitude is reduced; a pawl supplies air slightly in a high-frequency reciprocating mode during rope unwinding, loosening of a steel wire rope is delayed, descending is prevented from being hindered, and impact peak force is reduced; initial low-air-pressure flexible starting is combined with overload protection, starting impact is reduced, stability is improved, pure mechanical transmission does not need an electronic sensor, the rope winding and unwinding speed can be automatically adapted to adjust air supply, the device adapts to the complex environment, the hoisting efficiency is improved, meanwhile, the use and maintenance cost is reduced, and safety and reliability under the complex working condition are remarkably improved.
Owner:FUSHUN YONGMAO CONSTR MASCH CO LTD

Adjusting method and device of air suspension system, electronic equipment and storage medium

The invention relates to the technical field of vehicle control, and provides an adjusting method and device of an air suspension system, electronic equipment and a storage medium. The method comprises the following steps: acquiring the current gas capacity of each air spring and the no-load gas capacity of each air spring in the air suspension system; determining a target load of the vehicle according to the current gas capacity and the no-load gas capacity; according to the second load of the vehicle, the target rotating speed of a compressor in the air suspension system is determined; in response to the height adjusting instruction for the air suspension system, the compressor is controlled to adjust the height of the air suspension system according to the target rotating speed, the target load of the vehicle is accurately obtained through the current gas capacity of each air spring, and then the target rotating speed of the compressor is determined according to the target load of the vehicle; the target rotating speed of the compressor is matched with the load of the vehicle, and the requirement for dynamically matching the rotating speed of the compressor with the load of the vehicle in real time is met.
Owner:CHONGQING SELIS PHOENIX INTELLIGENT INNOVATION TECH CO LTD