330results about "Gas based dampers" patented technology

A charger according to the present embodiment may comprise a cover having a space formed in the cover; a first pulley guide and a second pulley guide disposed in the cover; a first moving pulley guided by the first pulley guide and moved by a charging cable; a second moving pulley guided by the second pulley guide and moved by the charging cable; and a damper installed on one of the first moving pulley and the second moving pulley.

The invention relates to a vertical high-speed motor active and passive vibration reduction system, which comprises a motor body, a motor base, a controller, a vibration sensor and an integrated active and passive pneumatic damping actuator, and is characterized in that the actuator is arranged between the motor body and the motor base; the vibration sensor is in signal connection with the motor body; the input end of the controller is in signal connection with the vibration sensor, and the output end of the controller is in signal connection with the high-speed switch pneumatic servo valve. According to the vertical high-speed motor active and passive vibration reduction system and vibration reduction method, a controller, a high-speed switch pneumatic servo valve and other components form an active damping system; and the damping pore plate and the auxiliary air chamber jointly form a built-in passive damping system. The passive damping system processes broadband vibration, and active control burden is reduced; and the active damping system achieves accurate suppression, and the overall energy efficiency ratio is increased. The active damping system and the passive damping system work in cooperation to jointly solve the vibration problem, so that the vibration problem of the vertical high-speed motor is rapidly and effectively suppressed.

The invention discloses a stiffness regulating valve for a multi-cavity air spring, and relates to the technical field of automobile control equipment, the stiffness regulating valve is used for regulating the size of an opening at a communicating air passage of the air spring, the stiffness regulating valve comprises a shell and a motor arranged in the shell, a screw rod and a piston are arranged in the shell, one end of the screw rod is connected with the motor, and the other end of the screw rod is connected with the piston. The other end of the lead screw is fixedly connected with a piston, and the position of the piston corresponds to the communicating air channel. The motor comprises a stator and a rotor, a transmission threaded hole is formed in the rotor along the axis, and the lead screw is meshed with the transmission threaded hole to form transmission connection. Through the unique structural design, the motor directly drives the lead screw to conduct transmission, the transmission precision is improved, the lead screw is arranged in the motor rotor, the axial size space of the valve body is greatly saved, high integration is achieved, the space utilization rate is improved, and the machining cost is reduced.

The utility model relates to a motorcycle shock absorber capable of adjusting the angle of a gas tank, which comprises a shock absorber body, a mounting seat and the gas tank, the mounting seat is hinged with the gas tank through a hinge shaft, and a gas transmission channel is arranged in the hinge shaft to communicate a gas supply channel of the gas tank with a gas inlet channel of the mounting seat so as to realize dynamic communication of a gas circuit during multi-angle adjustment of the gas tank. The two ends of the hinged shaft, the hinged seat and the hinged part form a first conveying air cavity and a second conveying air cavity respectively, the first conveying air cavity and the second conveying air cavity are aligned with the air conveying channel through the first air conveying hole and the second air conveying hole, air path continuity is guaranteed, and the flow adjusting mechanism comprises a thread driving valve element to achieve accurate flow gear adjusting, touch feedback gear prompting and vibration loosening prevention. The problems that a traditional gas tank is poor in fixing angle adaptability and rough in flow adjustment are solved, high precision, looseness prevention and operation intuition are achieved, the device is suitable for complex vehicle frame layout, and the damping performance and user experience are improved.

The invention provides a double-pipe self-locking type gas spring and relates to the technical field of double-pipe self-locking type gas springs, the double-pipe self-locking type gas spring comprises a sleeve, a lubricating structure, a connecting structure and a safety structure, a sliding rod is installed on the inner wall of the sleeve, a connecting piece is arranged at the end, away from the sliding rod, of the sleeve, and a connecting piece is arranged at the end, away from the sleeve, of the sliding rod; the connecting piece and the joining piece are connected with the sliding rod and the sleeve respectively through connecting structures, and a lubricating structure is arranged at the upper end of the sleeve. The problems that when a double-pipe self-locking type spring is used, a lubricating device is arranged in the double-pipe self-locking type spring, but in the actual using process, lubricating oil is troublesome to add and replace, continuous and stable lubrication of sliding parts in the double-pipe self-locking type spring is difficult to achieve, and the service life of the double-pipe self-locking type spring is affected are solved. The problem that the normal use and the service life of the double-tube self-locking spring are affected due to the fact that the sliding rod and the sleeve are prone to being blocked and even abraded due to the fact that friction is too large is solved.

The utility model relates to the technical field of air springs, and provides an air spring assembly and an air suspension system. The air spring assembly comprises an air bag and a piston assembled at the end of the air bag. The cushion block is arranged at the first end, away from the air bag, of the piston, the first end of the piston is provided with a limiting cavity, the cushion block is provided with a channel communicating with the limiting cavity, and the first end, away from the piston, of the cushion block is provided with a mounting part; the connecting piece comprises a head part and a rod part, the head part extends into the limiting cavity and is limited by the second end, close to the piston, of the cushion block, and the rod part penetrates through the channel and extends out. According to the air spring assembly, through cooperation of the cushion block, the connecting piece and the piston, the air spring assembly can be suitable for scenes with different suspension heights so as to adapt to different vehicle models, flexible connection is provided so as to adapt to dynamic working conditions of vehicles, meanwhile, the service life of parts is prolonged, and the working performance of the air spring assembly is improved.

A safety labelling system (S) comprising a lifting device (1) for positioning a labelling unit (2) in a vertical direction (Z) in relation to a flow of objects (3). The lifting device (1) comprises an upper section (1a) and a lower section (1b), wherein the upper section (1a) is movably arranged relative to the lower section (1b) by means of a balancing displacement unit (U). The labelling unit (2) is attached to the upper section (1a). The balancing displacement unit (U) comprises a cylinder barrel (5), a piston (6) movably arranged in the cylinder barrel (5), a piston rod (7), and a cylinder nut (8). The piston rod (7) and the cylinder nut (8) are rotatably engaged with each other, wherein the piston rod (7) at an inner end (7a) is connected to the piston (6) and the cylinder nut (8) is connected to the cylinder barrel (5). An actuator (M) is configured for rotatably displacing the piston rod (7) or the cylinder nut (8) resulting in linear displacement of the labelling unit (2) in the vertical direction (Z). The balancing displacement unit (U) further comprises a load balancing pressure chamber (9) arranged in the cylinder barrel (5) in connection to the piston (6), configured for counterbalancing a gravitational force (FG) exerted on the piston rod (7) by means of fluid pressure (P).

Assemblies include a gas spring and gas damper assembly and a mounting member with an elongated passage extending therethrough. The gas spring and gas damper assembly includes a flexible spring and first and second end member assemblies. The second end member assembly includes an end member chamber as well as a first passage in fluid communication between a spring chamber and the end member chamber. The second end member assembly includes a second passage in fluid communication between the spring chamber and an external connection port. The mounting member is secured to the second end member such that the elongated passage of the mounting member is in fluid communication with the second passage through the external connection port. Suspension systems are also included.

The application relates to the field of air springs, in particular to an air spring piston and an air spring. The air spring piston comprises a first mounting base, a second mounting base, a third mounting base and an electromagnetic valve. The first mounting base is connected with a vehicle body. The first mounting base is integrally connected or welded with the second mounting base on one side, and is in airtight connection with one end of a valve body of the electromagnetic valve through the second mounting base. The first mounting base is integrally connected or welded with the third mounting base on the other side, and is in airtight connection with the other end of the valve body of the electromagnetic valve through the third mounting base. The three mounting bases and the valve body of the electromagnetic valve surround to form a secondary chamber. The secondary chamber is communicated with an air bag of the air spring through the electromagnetic valve, so that the air spring has a double-cavity structure, the air spring piston has higher structural strength, and the secondary chamber has good airtightness.

The invention relates to a torsional vibration damper (1) or a torsional vibration absorber comprising a rotating system having a primary mass arranged on a rotatable shaft, for example on an engine, in particular an internal combustion engine crankshaft, preferably non-rotatably fixed, and a secondary mass movable relative to the primary mass, and a component for vibration damping and / or vibration reduction of the relative movement between the primary mass and the secondary mass. The component for vibration damping and / or vibration reduction of the relative movement between the primary mass and the secondary mass has at least one pressure accumulator (15, 15'; 22, 22') within the rotating system of the torsional vibration damper (1) or the torsional vibration absorber. The invention also provides a method for damping torsional vibrations of an internal combustion engine crankshaft (2) with a torsional vibration damper (1) or a torsional vibration absorber.

The invention relates to a gas spring (100) comprising: a gas-filled pressure chamber in a pressure tube (110); a working piston (120) which can be displaced in the pressure chamber along a travel axis (HA); a piston rod (140) fastened to the working piston (120) and guided out of the pressure tube (110) along a travel axis (HA) through a guide seal (130); and a separating piston (150) which is arranged on a side of the working piston (120) facing away from the guide seal (130) and which can be displaced along a stroke axis (HA) relative to the pressure tube (110) and relative to the working piston (120). The separating piston (150) divides the pressure chamber in a gas-tight manner into a working chamber (112) accommodating the working piston (120) and a support chamber (113). The gas spring (100) comprises a holding device (160). The holding device (160) holds the separating piston (150) stationary on the pressure tube (110) as long as a positive pressure difference between the support pressure of the gas in the support chamber (113) and the working pressure of the gas in the working chamber (112) is less than a predefined switching difference. The holding device (160) is designed in such a way that, as long as the positive pressure difference reaches or exceeds the switching difference, a switching force acting on the separating piston (150) caused by the positive pressure difference releases the separating piston (150) from the pressure tube (110) in such a way that the separating piston (150) can be moved towards the working piston (120).

This utility model relates to the technical field of gas spring connection structures, and discloses a gas spring connection structure, including a gas spring body, connecting ends fixedly installed at both ends of the gas spring body, and two connecting components adapted to the connecting ends. Each connecting component includes an L-shaped fixed base, a threaded post, a fixed post fixedly installed on the L-shaped fixed base, and a locking member disposed on the fixed post. The threaded post is fixedly installed at the lower end of the L-shaped fixed base. The locking member includes a fixed cylinder, a sleeve movably fitted onto the fixed cylinder, two connecting blocks fixedly installed on the inner wall of the sleeve, a toggle ring, and multiple movable balls. The fixed cylinder has an annular groove and multiple mounting grooves adapted to the movable balls. The mounting grooves communicate with the annular groove and the inner side of the fixed cylinder. The toggle ring is movably installed in the annular groove. The purpose is to solve the problem that current gas springs are inconvenient to disassemble and assemble in confined spaces or situations requiring frequent disassembly and assembly, thus affecting the overall maintenance efficiency of the equipment.

The present invention relates to a gas spring system having at least one gas spring (1) with a piston device (3) displaceably arranged in a cylinder. The piston device (3) is designed as a directionally closed piston packet, the piston packet being designed in a springless manner and having at least one annular sealing element (12) for sealing between a holding area (10) of a cylinder (2) and the piston device (3) during the gas spring's (1) expulsion movement, the sealing element (12) being arranged in a radially outer annular space (23) of the piston packet and displaceable therein, such that the sealing element (12) can be pressed against the cylinder (2) with a first pressing force during the gas spring's (1) expulsion movement and with a second, lower pressing force during the gas spring's (1) expulsion movement.

The invention belongs to the field of structural engineering and fluid mechanics, and particularly relates to a passive vortex vibration control device and method based on a collision type tuned mass damper and synthetic jet flow combination. The control device comprises a piston cylinder arranged in the bluff body structure, a piston capable of doing reciprocating motion is arranged in the piston cylinder, through holes are formed in the surfaces, located on the two sides of the piston cylinder, of the bluff body structure, and the two ends of the piston cylinder are communicated with the through holes through fluid pipelines. When vortex-induced vibration happens to the bluff body structure, the piston is driven by structural vibration to reciprocate in the piston cylinder, on one hand, the damping control effect of the tuned mass damper is generated, vibration energy is dissipated through gas compression and expansion, on the other hand, fluid is driven to flow in the fluid pipeline, periodic zero-mass synthetic jet is generated at the position of the through hole, and the zero-mass synthetic jet is generated. The interference vortex falls off, and the fluid load is reduced. According to the invention, through two cooperative physical mechanisms of damping control and flow control, the vortex vibration of the structure is jointly and efficiently inhibited from two aspects of energy dissipation and energy absorption.

The utility model discloses an air spring piston and shock absorber integral structure which comprises a shock absorber, and a piston outer cylinder is fixed on the outer wall of the shock absorber. The piston inner support is arranged between the piston outer cylinder and the shock absorber, one end of the piston inner support is provided with a first welding seam fixed with the shock absorber, and the other end of the piston inner support is provided with a second welding seam fixed with the piston outer cylinder; wherein the outer wall of the piston outer cylinder is sunken towards one side of the piston inner support to form an assembly groove matched with an external air spring leather bag; the thin-wall structure piston made of the same material as the shock absorber outer cylinder is used, the piston and the shock absorber outer cylinder are welded into a whole to form the shock absorber assembly, namely, the piston and shock absorber integrated structure is formed, the air spring leather bag can be directly buckled and assembled with the shock absorber assembly, and the structure of the strut type air spring assembly can be simplified conveniently; the number of sub-parts is reduced, the cost is reduced, and the later assembly process is simplified.

The invention provides an air spring low-frequency vibration isolation device based on turn-back type square cavity flow, which comprises an air spring main air chamber, an additional air chamber, a mass block and a turn-back type square cavity throttle pipe, the mass block is connected with the upper end of the air spring main air chamber, the additional air chamber is connected with the lower end of the air spring main air chamber, and the turn-back type square cavity throttle pipe is connected with the mass block. The turn-back type square cavity throttling pipe is arranged in the main air chamber and the auxiliary air chamber of the air spring, and air in the main air chamber of the air spring can flow into or flow out of the auxiliary air chamber through the turn-back type square cavity throttling pipe. According to the air spring, the turn-back type square cavity throttling pipes are arranged in the main air chamber and the auxiliary air chamber of the air spring in the vertical direction, so that air in the main air chamber of the air spring can flow into or out of the auxiliary air chamber through the turn-back type square cavity throttling pipes; the gas can form an airflow vortex in the square cavity of the turn-back type square cavity throttle pipe, so that energy consumption is increased, vertical low-frequency micro-vibration is effectively isolated, and vibration isolation performance is improved.

The utility model provides an acid-base property detection device for laundry detergent processing, belongs to the technical field of laundry detergent processing, and solves the problems that laundry detergent remains and needs to be cleaned after a detection rod and a detection head finish detection, and the relieving effect on impact force borne by a detection machine main body when the detection machine main body accidentally falls through a roller is not large. The acidity-alkalinity detection device for laundry detergent processing comprises a detection machine body, a display screen is fixed to the detection machine body, an operation panel is arranged on the detection machine body, a containing groove is formed in the detection machine body, a detection rod is slidably connected into the containing groove, a detection block is fixed to the lower end of the detection rod, and a driving mechanism is arranged between the detection machine body and the detection rod. The lower end of the detection machine body is slidably connected with two pieces of cleaning cotton, and the cleaning cotton is attached to the outer wall of the detection rod. The laundry detergent detection machine has the advantages that after the detection rod and the detection head finish detection, residual laundry detergent is cleaned, and impact force borne by the detection machine main body when the detection machine main body falls off accidentally is relieved.

The application discloses a curtain wall construction inhaul cable sling basket device and a use method thereof, and relates to the technical field of curtain wall construction, in particular to the curtain wall construction inhaul cable sling basket device and the use method thereof. The curtain wall construction inhaul cable sling basket device specifically comprises a sling, a control cabinet installed in the sling, composite branch pipes which are detachably installed on both sides of the front end of the sling, and damping buffer components which are installed at the top and the bottom of the composite branch pipes and are in space communication with each other. A piston buffer assembly and a pressure detection component are sleeved in the front end of the sling, and the pressure detection component is located outside the output structure of the piston buffer assembly. A pressure relief hole is arranged at the top of the piston buffer assembly, and pipes are installed between the two composite branch pipes and the piston buffer assembly. The curtain wall construction inhaul cable sling basket device is provided with multiple damping buffer components and a piston buffer assembly which are supported by associated composite branch pipes, pipes and other structures, can form a damping buffer and piston pressure relief series buffer effect in the process of protecting the sling from collision, and realizes secondary buffering.

A gas spring (100) comprising a first fixed element (1) equipped with a side wall (11) and an abutment surface (12), a second hollow movable element (2), equipped with a side wall (21) and an upper closure element (22) delimiting a concavity and configured to slide outward from the side wall of the first element (1) to allow the spring (100) to pass from an extended configuration to a compressed configuration, a gasket (4) adapted to increase the tightness of said gas spring (100). The side wall (21) and the upper closure element (22) are two distinct elements, and the upper closure element (22) presents a shaped profile configured to go into abutment with the side wall (21) and to ensure the housing of the gasket (4) interposed between the side wall (21) and the upper closure element (22).

According to the plastic protective shell for the air spring, the taper guide face and the arc transition face are arranged at the inlet of the annular assembly groove of the protective shell body so as to disperse stress and prevent cracking; the groove adopts a non-circular section and is provided with a one-way anti-retreating structure, so that bidirectional mechanical locking is realized, and loosening is prevented; targeted annular reinforcing ribs are arranged in the areas, corresponding to the grooves, of the shell so as to enhance fatigue resistance. The elastic characteristic of plastic is converted into the assembly advantage, the reliable connection problem of the plastic protective shell is systematically solved, the lightweight advantage of the plastic protective shell is practical, and meanwhile the assembly process is simple and efficient.

The air spring comprises an upper bearing seat and a lower bearing seat, the lower bearing seat is fixedly connected to the outer portion of the upper bearing seat, the upper bearing seat comprises an extension platform, the extension platform is located at the top of the upper bearing seat, and an automobile body installation seat is arranged between the extension platform and the lower bearing seat. A first bearing is arranged between the extension platform and the vehicle body installation seat, a second bearing is arranged between the lower bearing seat and the vehicle body installation seat, and the outer side and the inner side of the vehicle body installation seat are connected with the first bearing and the second bearing respectively.

The present application discloses embodiments of a vibration isolation assembly configured to reduce the communication of excitation vibration between a supporting surface and a payload, at excitation frequencies significantly higher than the resonant frequency of the isolator. In one embodiment, the vibration isolation assembly includes a housing assembly having a housing body with a pneumatic chamber formed therein, wherein the housing assembly is supported by the supporting surface. The pneumatic chamber is configured to accept at least one fluid therein. A mass engaging member configured to support at least a portion of the payload is supported by the pneumatic chamber, and at least one thermally conductive member in thermal communication with the housing body is positioned within the pneumatic chamber. The thermally conductive member is configured to transfer thermal energy from the fluid in the pneumatic chamber to the housing body and into the ambient environment.

The invention relates to a retractable air spring bellows (100) with an outer metal bellows hose (111) and an inner metal bellows hose (112), which are coupled by a connecting sleeve (120). In order to stabilize the movement, guide elements (161, 162) are provided, which limit the deviation of the movement of the inner and / or outer metal corrugated hose (111, 112) from the axial direction (X). The guide element may, for example, comprise spacer elements (161, 162) arranged between the connecting sleeve (120) on the one hand and the outer or inner metal corrugated hose on the other hand.

A gas spring mounting structure and connection structure, and a device having an opening and closing mechanism are disclosed. The gas spring mounting structure is used to connect the gas spring to the opening and closing mechanism. The first end of the gas spring is used to connect to the housing of the opening and closing mechanism. The gas spring mounting structure includes: a first support member with a first end face and a first hole in the first end face; a second support member with a second end face and a second hole corresponding to the first hole in the second end face; and a first threaded fastener, which is embedded in the second support member and the first support member through the second hole and the first hole to realize the disassembly and locking of the first support member and the second support member. The first threaded fastener is used to reduce the gap between the second support member and the first support member during the locking process, thereby gradually pre-tightening the gas spring. Furthermore, due to the existence of the gas spring mounting structure, no additional gas spring mounting fixture is required, avoiding the influence of the superposition of the tolerances of the fixture and the gas spring on the installation accuracy.

The fork assembly (100) includes a linearly fixed tube (110) and a linearly moving stanchion (116). The air bleed mechanism (128) is located within the upper portion of the fork assembly (100), preferably within the chassis crown (106) of the fork assembly (100). The air bleed mechanism (128) is configured to allow for the equalization of pressure between an internal cavity (306) located within the linearly fixed tube (110) and / or the linearly moving stanchion (116).

The invention relates to a hybrid bellows for a height adjustment device of a vehicle, the hybrid bellows (1) comprising a multi-layer base body (2) having a first free end (3) and a second free end (4) and a working chamber (5) which can be formed between the free ends (3, 4), the base body (2) having an inner elastomer layer (6) facing the working chamber (5) and an outer elastomer layer (8) facing the environment (7), the inner elastomer layer (6) has a first material composition and the outer elastomer layer (8) has a second material composition. The hybrid bellows is characterized in that the first material composition and the second material composition differ from each other. The invention also relates to a height adjustment device for a vehicle, comprising such a hybrid bellows (1).

The invention relates to a gas pressure spring (50) comprising a working piston (2) displaceably guided in a working cylinder (1) along a stroke axis (H), a compensation cylinder (12) surrounding the working cylinder (1) and a compensation piston (10) of hollow cylindrical shape and displaceably guided in the compensation cylinder (12) along the stroke axis (H). The working cylinder (1) has an open end (1b) at which the compensation cylinder (12) forms a projection (15) beyond the working cylinder (1) with a closed end (15b). The compensation piston (10) separates from each other a working chamber (1a) arranged in the working cylinder (1), a compensation chamber (12a) arranged between the working cylinder (1) and the compensation cylinder (12) and a restoring chamber (15a) arranged in the projection (15) and is open at the upper side (10a) of the balance piston (10) facing the working chamber (1a). The gas spring (50) includes a seal (8) disposed on an upper side (10a) of the balance piston (10), which seals the balance piston (10) against the working cylinder (1) and the balance cylinder (12).

The utility model relates to a normally open solenoid valve for a double-cavity air spring, which comprises a shell, a movable iron core axially moving and a coil assembly controlling the movable iron core to move are arranged in the shell, a base is mounted at one end of the shell, a base is mounted between the base and the coil assembly, and a valve port is arranged on the base. A tappet capable of moving axially is arranged at the position, corresponding to the valve port, between the base and the base, one end of the tappet penetrates through the base to abut against the movable iron core, an elastic piece is arranged at the second end of the tappet, and an auxiliary sealing piece is arranged between the tappet and the base and comprises a sealing body which is in a circular ring shape. The upper end and the lower end of the sealing body are each provided with an outer lip part and an inner lip part, the two outer lip parts, the two inner lip parts and the whole vertical section of the sealing body are in an X shape, the two inner lip parts are in interference fit with the outer wall of a tappet, and the two outer lip parts are in interference fit with a base. A brand new auxiliary sealing piece structure is designed, and the difference value of dynamic and static friction force can be reduced as much as possible through the design.