55 results about "Pneumatic circuit" patented technology

The disclosure relates to a leak detection system for a pneumatic braking system of a vehicle. The pneumatic braking system has a control unit, a pneumatic circuit, and an air tank configured to supply pneumatic pressure to the pneumatic circuit. The pneumatic circuit has a plurality of valves configured to be individually controlled by the control unit. The link detection system includes program code configured, when executed by a processor, to individually control the valves of the pneumatic circuit so as to isolate a sub-circuit of the pneumatic circuit. The leak detection module is configured to monitor a pressure in the pneumatic circuit for leaks, wherein the leak detection module detects a leak in the sub-circuit if the pressure decreases while the sub-circuit is isolated.

The application discloses a kind of SF6 density relay comprehensive calibration instrument and calibration and measurement method, including intermediate pipeline and be located on the air pump of intermediate pipeline, the one end of the intermediate pipeline is respectively communicated with the one end of safety valve pipeline, first pipeline one end, second pipeline one end, the other end of intermediate pipeline is respectively communicated with the one end of micro water measuring pipeline and third pipeline one end, the other end of the micro water measuring pipeline is respectively communicated with the one end of inlet pipeline and purity measuring pipeline, the other end of third pipeline is respectively communicated with the other end of first pipeline and fourth pipeline one end, the other end of the fourth pipeline is respectively communicated with the other end of purity measuring pipeline, the other end of second pipeline and muffler pipeline, intermediate pipeline side is equipped with suction pipeline;The application has adopted new pneumatic circuit design, combines density relay system calibration circuit with moisture measurement circuit and purity measurement circuit together, with the characteristics such as high measurement efficiency, convenient, its loop structure is simplified, and measurement is efficient.

The present invention relates to a sealing test apparatus (D1) for a system that isolates two media in a sealed manner, the system including a flange and a sealing blocking device mounted in the flange, the test apparatus comprising: a housing (36) including an expandable seal (48) intended to contact the system in an expanded state and ensure the sealing of a test space defined between the system and the housing; a pneumatic pump (P1) and a pneumatic circuit (C1) configured to connect the pump (P1) to the expandable seal (48) in a first step such that the pump (P1) expands the expandable seal (48), and to connect the pump (P1) to the test space in a second step such that the pump (P1) generates a pressure of a given value in the test space; and means for measuring the pressure in the test space.

A brake system for a commercial vehicle, the vehicle comprising at least one front axle and at least one rear axle, the brake system comprising a redundant electro-pneumatic service brake system and an electro-pneumatic parking brake system, at least one axle being equipped with electro-pneumatic means comprising redundant electrical and / or electronic means, the control circuit is configured to control two independent electro-pneumatic circuits. At least one axle is equipped with a two-channel electro-pneumatic device with redundant electrical / electronic devices configured to control two separate pneumatic circuits, one of which is configured to control one or more service brake actuators associated with the at least one axle, and the other one of which is configured to control one or more service brake actuators associated with the at least one axle. The other circuit is configured to control one or more parking brake actuators associated therewith. The two-channel electro-pneumatic device includes a redundant axle module including a single-channel electro-pneumatic regulator and a single-channel electronic parking brake module, forming an integrated redundant electronic service brake control unit and an integrated electronic parking brake control unit.

The utility model relates to the technical field of ammunition feeding and conveying, solves the technical problems of complex structure, low efficiency and inconvenience in operation of a traditional ammunition feeding and conveying mode, and particularly relates to a pneumatic ammunition pushing device which adopts air pressure to push ammunition to move so as to realize the ammunition conveying action. Before working, an air compressor compresses rated air pressure to an air storage tank and a clamping and unlocking pneumatic loop, during working, an ultra-thin air cylinder is used for unlocking an OK clamp at the tail of a bullet, then a manual ball valve of a bullet conveying air path is operated, compressed air is divided into five paths from the air storage tank through an air exhaust distributor to the rear end of a bullet conveying barrel and pushes the bullet to slide, and the bullet slides to a bullet receiving box; the bullet is stopped under the buffering effect of a buffering nylon horn mouth on the head portion of the bullet receiving cylinder, and meanwhile the bullet locking clamp on the bullet receiving cylinder clamps the bullet to prevent the bullet from moving backwards. Air pressure is used for pushing the bullets to move, the bullet conveying action is achieved, multiple bullets can be conveyed at the same time, the structure is compact and simple, installation is convenient, operation is convenient, and action is rapid.

The invention relates to the technical field of industrial automation and robots, in particular to an industrial welding robot. The invention provides an industrial welding robot which comprises a welding platform, an arc-shaped guide rail is fixedly installed on the welding platform, the welding platform is rotationally connected with a first rotating frame, and the upper portion of the first rotating frame is fixedly connected with a sliding block embedded in the arc-shaped guide rail; a sliding frame is slidably connected into the first rotating frame in the vertical direction, a connecting frame is rotatably connected to the lower end of the sliding frame through a rotating shaft, and a laser welding assembly is slidably connected into the connecting frame. By means of the overturning mechanism composed of the winch, the chain rope and the arc-shaped guide rail and in combination with the pneumatic angle adjusting device, overturning of the rotating frame is automatically converted into precise adjustment and locking of the angle of the welding gun, and traditional manual adjustment is replaced. Through cooperative control of a mechanical track and a pneumatic loop, rapid alignment and reliable locking of a welding gun and a welding seam ring face are achieved, and the switching efficiency and the intelligent level are remarkably improved.

The application provides a pneumatic actuator control system, which comprises a control panel, a gas source manual valve, a filter pressure reducer, a split positioner, a flow regulating device, a quick opening device, a quick closing device, a holding device, a split position sensor and a junction box, which are all arranged on the control panel. The split positioner, the split position sensor and other control elements such as two-position three-way electromagnetic valves are arranged away from high temperature and vibration working conditions, so that the service life of each control element is greatly prolonged. The flow regulating device, the quick opening device, the quick closing device and the holding device are integrated, and different functional modules can be selected according to different specifications of the pneumatic actuator, so as to meet different functional requirements. The pneumatic actuator control system can be applied to the control of a pneumatic circuit under severe working conditions such as quick positioning and adjustment of a pneumatic actuator, independent switch control and the like, for example, the control of a valve pneumatic actuator under complex working conditions such as a turbine bypass valve and a compressor anti-surge valve.

The invention discloses a method and device for automatically designing a gas path diagram based on AI. The method comprises the steps that based on feature points of a three-dimensional model, key point cloud of the three-dimensional model is generated through a point cloud processing algorithm, and based on the key point cloud, part category recognition is conducted through a neural network model; correspondingly binding the identified part category with a preset two-dimensional legend block to obtain part legend binding data; analyzing the gas path schematic diagram vector file, extracting graphic metadata in the gas path schematic diagram vector file, and generating part connection relation data based on the part legend binding data and the extracted graphic metadata; and based on the part connection relation data, connecting the corresponding two-dimensional legend blocks and adding feature attributes to generate a gas path diagram. According to the invention, the technical problems of inaccurate gas path diagram generation and low efficiency in the prior art are solved.

This item is a pseudo-leak standard used in leak tests to detect leaks by pressurizing or depressurizing the inside of a test object and measuring the pressure change due to the leak, and it creates a pseudo-leak in the pneumatic circuit of the leak test equipment. The pseudo-leak test results are compared with the test results of the test object and are used to evaluate the sealability of the test object. This item is attached to a test object sample connected to the pneumatic circuit of the leak test equipment to form an inspection reference object (defective sample), or is attached directly to the piping of the pneumatic circuit to which the test object sample is connected. This item is threadedly connected to a jig in the pneumatic circuit or to a female thread machined into the test object sample. A through hole formed inside the body of this item has a tiny hole formed in the foil sandwiched between two seal rings, and when air pressure is applied, a leak occurs from the hole.

The invention discloses a self-adaptive adjusting process system of a double-gun water vapor rust-proof sand blasting machine, and relates to the technical field of equipment treatment, the self-adaptive adjusting process system comprises a gas supply pipeline for providing high-pressure gas flow, and further comprises a rust inhibitor storage box, a clear water storage box, a sand tank, a control system, a sand blasting pipeline A and a sand blasting pipeline B. A water drainage pipeline is arranged at the bottom of the clear water storage box; a first water pump unit is arranged on the drainage pipeline, the output end of the first water pump unit is divided into first, second, third and fourth conveying pipelines, control valve groups are arranged on the first and third conveying pipelines, and the output ends of the control valve groups on the first and third conveying pipelines are divided into clear water branches A and B; according to the self-adaptive adjusting process system of the double-gun water vapor rust-proof sand blasting machine, three functional modes of sand blasting, flushing and blowing are integrated, stable and non-interfering switching among the modes is achieved through a core pneumatic loop, operation is easy and convenient, and the comprehensive efficiency and operation flexibility of equipment are improved.

A liquid or gaseous fuel burner has a supply circuit for supplying a liquid or gaseous fuel to a burner head (2); a first pneumatic circuit (3) configured to supply oxidation air to the combustion head (2) and provided with first valve means (7); and a second pneumatic circuit (4) configured to feed a flow of combustion fumes from the combustion head (2) into the first pneumatic circuit (3) and provided with second valve means (11) movable between a closed position and an open position of the second pneumatic circuit (4) and third valve means (12) movable between a closed position and an open position of the second pneumatic circuit (4). Third valve means are connected to the first valve means (7) to move between a closed position of the second pneumatic circuit (4) and a plurality of open positions for each open position of the first pneumatic circuit (3), and selectively control the emission of nitrogen oxides NOx. The liquid or gas fuel burner provided by the utility model has relatively many operation modes and relatively strong multifunctionality.

The invention relates to the field of fairing butt joint tools, in particular to a rocket fairing fixture butt joint tool and a using method.The rocket fairing fixture butt joint tool comprises a butt joint electric track, sliding plates are slidably connected to the surface of the butt joint electric track, and the sliding plates and other structures of the sliding plates are symmetrically arranged on the other side of the butt joint electric track; the surface of the sliding plate is fixedly connected with a movable supporting device, one side of the movable supporting device is fixedly connected with a clamping and stabilizing mechanism, and the clamping and stabilizing mechanism comprises a rocket fairing supporting plate. In the invention, a high-speed and sensitive negative feedback dynamic balance system is formed through a limited shaking interval provided by the movable supporting device and a closed pneumatic loop formed by the stabilizing mechanism and the reverse driving pneumatic device. When vibration or deviation is generated due to tracks, driving or loads in the butt joint process, the system can instantly detect and convert mechanical swing into air pressure signals, the opposite side is automatically driven to generate reverse correction force, and active damping and real-time deviation correction of shaking are achieved.

This invention relates to the field of underwater lifting device technology, and provides an air-cushioned, multi-stage pneumatic lifting system. The system includes a lifting device and a pneumatic circuit. The lifting device includes a base and three lifting rods—a first-stage, a second-stage, and a third-stage lifting rod—coaxially arranged inside the base and capable of extending upwards in stages. The lifting device forms a first retraction chamber, a second retraction chamber, and a third retraction chamber from the outside in. A first connector penetrating the base is provided at the upper part of the base, and the bottom of the base is fixedly connected to a bottom cover. A second connector penetrating the bottom cover is provided on the bottom cover. The top of the third-stage lifting rod is fixedly connected to a plug. According to this embodiment, the air-cushioned, multi-stage pneumatic lifting system can more precisely control the complete and smooth extension and retraction of each stage of the lifting rod, improving the airtightness of the lifting system.

Sorting installation with improved compressed air management and corresponding management method The invention relates to an installation (1) for sorting objects (2) with a sorter (3) with planar geometry, also comprising, on the one hand, an air cooling system (8) for at least one system (5, 9) thereof which is subject to heating during operation, which incorporates at least one vortex tube (10), and, on the other hand, a pneumatic architecture (11) for distributing compressed air supplied by at least one compressor (12) and supplying at least one pneumatic ejection system (6) and the cooling system (8).An installation characterized in that it comprises a single pneumatic circuit (11) for distributing compressed air supplied by a compressor (12) with a means (13) for regulating the inlet pressure, in that said pneumatic distribution circuit (11) comprises several separate branches (14, 14', 14'') corresponding to as many distribution lines, and in that the line (14') supplying the cooling system (8) comprises a means (16) for passively over-pressurizing the compressed air from the compressor (12) before its injection into the vortex tube(s) (10). Figure to be published with the abbreviation: Fig. 2.

The utility model provides an optical-mechanical-electrical bending device used for being matched with a robot body, and belongs to the technical field of industrial robots. Comprising a bending mechanical device, a gas circuit part and a circuit part, the bending mechanical device is composed of a bending air cylinder, a bending tool bit groove, a bending tool bit, an upper plane base, a lower plane base and a connecting column. The upper portion of a piston rod of the bending air cylinder is connected with the bending tool bit groove, and the bending tool bit is fixed to the side face of a cylinder body of the bending air cylinder and arranged opposite to the bending tool bit groove. The upper plane base is fixedly connected with the lower plane base through the connecting column, the lower plane base is fixedly installed on the working platform, and a cylinder body of the bending air cylinder is fixed to the upper plane base. By means of innovative mechanical structure design and gas circuit and circuit integration, high-precision and multi-angle bending of metal materials is achieved, and the device has the advantages of being resistant to interference, high in automation degree, low in cost and the like and is suitable for flexible machining of industrial robots.

The invention relates to the technical field of vibration control, and provides a modularized orthogonal decoupling vibration isolation system for an ultrahigh frequency laser vibration measuring instrument, which comprises a bearing platform, a rigid support beam, a Z-axis vibration isolation layer, an X-axis vibration isolation layer, a Y-axis vibration isolation layer, a Z-axis basic vibration isolation unit, a Y-axis basic vibration isolation unit and an X-axis basic vibration isolation unit, the X-axis basic vibration isolation unit, the Y-axis basic vibration isolation unit and the Z-axis basic vibration isolation unit are the same vibration isolation assembly, can move in the single direction and have the same mechanical property, and only the installation positions are different. The X-axis vibration isolation layer, the Y-axis vibration isolation layer and the Z-axis vibration isolation layer are sequentially connected in series from bottom to top; the bearing platform is used for installing an ultrahigh frequency vibration measuring instrument, and the bearing platform is fixed to the Z-axis vibration isolation layer through the rigid supporting beams in a bolt connection mode. The problems that in an existing ultrahigh frequency laser vibration measuring instrument, a pneumatic loop of an air floating vibration isolation platform is complex in structure, multi-degree-of-freedom vibration isolation performance is coupled, and the vibration isolation frequency band is limited are solved.

A vehicle braking simulation testing system is provided. A host computer and a target computer are configured to create and mutually call environmental and vehicle body models. An EBS processing unit communicates with the simulation equipment, receiving and processing virtual vehicle state signals generated by the environmental and vehicle body models, and controlling the simulation equipment within the simulation equipment. The EBS processing unit includes a processor and a control unit. The control unit is a combination of circuits and pneumatic circuits controlled by valve switching and / or valve opening. The processor collects data, analyzes and processes it, and then controls the switching and / or opening of the valves in the control unit, thereby changing the operating state of the simulation equipment. This significantly improves the accuracy of EBS testing while achieving multi-functional integrated testing of EBS, greatly reducing the cost of vehicle testing. Furthermore, it can directly call or adapt commercial simulation software, improving the compatibility and integration of the testing system.

The utility model discloses a rocker arm type pinch roll device which comprises a machine frame, a controller and a pinch roll assembly arranged on the machine frame, two rolls of the pinch roll assembly are in clearance fit so that a steel plate can penetrate through, a pressing support is arranged on the downstream of the pinch roll assembly, the pressing support is hinged to the machine frame, a pressing roll is arranged on the pressing support in a linkage mode, and the controller is connected with the controller. A reverse spraying assembly is further arranged on the pressing support in a linkage mode, the reverse spraying assembly comprises an air pump, a pneumatic loop and a plurality of nozzles which are sequentially arranged in the airflow direction and sequentially communicated, the nozzles are arranged on the pressing support in an array mode, and when the pressing support is located at the bottommost working position, the air spraying direction of the nozzles is opposite to the conveying direction of the steel plate. The rocker arm type pinch roll device can effectively avoid the adverse effect of cooling water on the finished strip coil, and the quality of the finished strip coil of the coiling machine is improved. The utility model further discloses a coiling machine using the rocker arm type pinch roll device.

This invention discloses an AI-based method and apparatus for automatically designing gas path diagrams. The method includes: generating a key point cloud of the 3D model using a point cloud processing algorithm based on feature points of the 3D model; identifying part categories using a neural network model based on the key point cloud; binding the identified part categories to preset 2D legend blocks to obtain part legend binding data; parsing the gas path schematic vector file, extracting its graphic metadata, and generating part connection relationship data based on the part legend binding data and the extracted graphic metadata; and connecting the corresponding 2D legend blocks and adding feature attributes based on the part connection relationship data to generate the gas path diagram. This invention solves the technical problems of inaccurate and inefficient gas path diagram generation in existing technologies.

The utility model discloses a kind of feeding clamping plate mechanisms of pneumatic circuit board hot air leveling machine, applied to four-station rolling type circuit board hot air leveling machine's plate mechanism, comprising: clamping plate base and install on clamping plate base pneumatic lifting seat, pneumatic lifting cylinder, clamping plate chuck and pneumatic clamping plate cylinder;The number of clamping plate chuck is at least two groups, respectively installed on the both sides of pneumatic lifting seat position;And the piston rod of pneumatic lifting cylinder is connected with pneumatic lifting seat;Pneumatic clamping plate cylinder and clamping plate chuck are connected by linkage connecting rod, realize the opening and closing work of clamping plate chuck;By telescopic clamping plate device, realize stable clamping circuit board when overturning, avoid deviation and slide, improve feeding accuracy, guarantee circuit board safety and hot air leveling quality;Clamping plate device structure optimization;Various specifications circuit board can be adapted, simplify operation process, improve equipment versatility and production efficiency, reduce manpower cost.

The utility model discloses an air source treatment unit with double valve terminals, and belongs to the technical field of air source treatment units, the air source treatment unit comprises a bottom plate, and the valve terminals, an air distribution block and an air source treatment module are fixedly mounted at the top of the bottom plate; a gas source entering the system is treated through the gas source treatment module, impurities in air are filtered out, moisture is removed, it is ensured that the gas source provided for the system is clean, dry and stable in pressure, the valve terminal integrates the multiple electromagnetic valves, the flow direction and flow of gas can be accurately controlled according to instructions of the control system, and the service life of the system is prolonged. Two valve terminals are arranged so that different pneumatic circuits can be controlled independently, the control precision and flexibility of the system can be improved, gas supplied by the gas source processing module is evenly distributed to all outlets through the gas distribution block, it is ensured that each pneumatic execution element can obtain stable gas source supply, and the system reliability is improved. The air source processing unit provides reliable guarantee for stable operation of the pneumatic system through cooperation of the two valve terminals, the air distribution block and the air source processing module.

A respiratory delivery system providing a bi-level pressure airflow. The system includes respiratory and pneumatic circuits. The respiratory circuit includes a respiratory gas supply, a patient interface, and a bi-level pressure regulator. The respiratory gas supply supplies a respiratory gas to the patient interface via a first conduit. The bi-level pressure regulator is coupled to the patient interface via a second conduit and is configured to cyclically alternate the respiratory gas passing through the bi-level pressure regulator between a low-pressure level and a high-pressure level. The pneumatic circuit includes a pneumatic gas supply and a pneumatic cycler configured to output a cycling pressure level. The cycler is coupled to the bi-level pressure regulator via a third conduit. The bi-level pressure regulator cyclically alternates the pressure level of the respiratory gas between the low-pressure level and the high-pressure level with the timing defined by the cycling of the pneumatic gas.

This utility model relates to the technical field of robot cable routing auxiliary components, and discloses a cable routing device for robots, including a fixed base, a first cable routing assembly, and a second cable routing assembly. A mounting base for connection to the robot is provided on one side of the fixed base. The first cable routing assembly is located at one end of the fixed base and is used for routing electrical circuits. The second cable routing assembly is located at the other end of the fixed base and is distributed parallel to the first cable routing assembly, used for routing pneumatic circuits. A movable cylinder in the first cable routing assembly is movably connected to the first cable routing cylinder, and there is a movable gap between the movable cylinder and the first cable routing cylinder, allowing the electrical circuits to rotate flexibly relative to the first cable routing cylinder under the action of a first bearing and the movable cylinder. Similarly, the second cable routing assembly's second cable routing cylinder is connected to the fixed base via a rotating seat and a second bearing, allowing the pneumatic circuits within the second cable routing cylinder to rotate flexibly relative to the fixed base.

Visual indicator (10) of depression in a pneumatic circuit (3), comprising: a hollow body (11) having a base (12) and a top (13) which are connected by at least one side wall (14) provided with at least one window (15) in the vicinity of the top (13); a connection element (16) to the pneumatic circuit (3) which is integral with the base (12) of the body (11) and which opens into the body (11) by a conduit (18) provided in the base (12) of the body (11); a bellows (19) which has a first open end (19.1) fixed to the base (12) opposite the conduit (18) and a second closed end (19.2) and which is deformable between an extended state in which the second end (19.2) extends in the vicinity of the top (13) opposite the window (15) and a retracted state in which the second end (19.2) extends between the base (12) and the window (15); and a magnetic attraction device (23) comprising a first element (23.1) attached to a front wall of the second end (19.2) of the bellows (19) and a second element (23.2) attached to the apex (13) to exert on the first element (23.1) a predetermined restraining force when the bellows (19) is in its deployed state. FIGURE IN ABRIDGED DIAGRAM: Fig. 1.

This item is a pseudo-leak standard used in leak tests to detect leaks by pressurizing or depressurizing the inside of a test object and measuring the pressure change due to the leak. It creates a pseudo-leak in the pneumatic circuit of a leak test device. The pseudo-leak test results are compared with the test object's test results and used to evaluate the test object's sealing ability. This item is attached to a test object sample connected to the pneumatic circuit of a leak test device to form an inspection reference object (defective sample), or it is attached directly to the piping of the pneumatic circuit to which the test object sample is connected. This item is threadedly connected to a jig in the pneumatic circuit or to a female thread machined into the test object sample. A thin tubular capillary is housed in a through hole formed inside the body of this item and is supported by a cap screw and O-ring. When air pressure is applied to this item, a leak occurs from the hole in the capillary.

An improved wet abrasive blast machine with remote control rinse cycle enables a pilot operating the apparatus to control remote switching between blast and rinse cycles directly, for example from a nozzle of a blast hose or from a panel. A first and second hydraulic circuit and a pneumatic circuit are controllable via communication with a control circuit which is operable remotely to direct a configurable pilot signal between various valve states. In a preferred embodiment, the control circuit is powered pneumatically via a branch circuit fed from the pneumatic circuit. Switching between configurations is effected by directing an air pilot signal between airflows interior to a series of valves. In an alternate embodiment switching airflows between configurations is effected electrically.

A machine for washing and / or sanitizing articles, applied in the chemical, pharmaceutical and / or clinical / preclinical research field, comprises: a cabinet (10) defining a treatment chamber (20) having at least one access opening (30); a door (40) associated with said access opening (30) and controllable between a closed condition, in which it closes said access opening (30), and an open condition, in which it does not close said access opening (30); an inflatable gasket (50) extending along the perimeter of said door (40), controllable between an inflated configuration, in which it creates a sealing closure when said door (40) is in the closed condition, and a deflated configuration; at least one latch (60) controllable between an active condition, in which it locks said door (40) in the closed condition, and a rest condition, in which it does not exert a locking action; a pneumatic circuit (100) acting on said inflatable gasket (50) to bring it into the inflated configuration. Said at least one latch (60) houses a portion of said pneumatic circuit (100).