78 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 present invention relates to a closing device (3) intended to close a container (2) of phytosanitary product, the closing device (3) comprising a bottom wall (30) having at least three through openings, and a peripheral wall (31) projecting from the bottom wall (30), a first opening (33) being configured to be connected to a phytosanitary product outlet (5) allowing said phytosanitary product to be evacuated from said container (2), a second opening (34) being configured to open in a sealed manner into an inflatable membrane (36) and to be connected to an inlet of a pneumatic circuit (4), so as to allow an overpressure to be generated in the container (2) by the expansion of the inflatable membrane (36) by means of the pneumatic circuit (4), a third opening (35) being configured to be connected to an inlet of a hydraulic rinsing circuit (6). Abstract figure: Figure 1

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 utility model relates to the technical field of automobile maintenance, in particular to an automobile maintenance work station with an electric circuit installation groove, which comprises a cabinet body, a grid plate is fixed on the surface of the cabinet body, the surface of the grid plate is connected with a lighting mechanism, and the lighting mechanism is convenient to use and work of the work station. The surface of the cabinet body is connected with an electrical circuit installation mechanism, the electrical circuit installation mechanism facilitates the installation work of an electrical circuit, the electrical circuit installation mechanism is composed of an installation groove, an installation strip, a fixed buckle and a movable buckle, the installation groove is formed in the surface of the cabinet body, a circuit gas circuit is arranged in the installation groove, and the movable buckle is arranged in the installation strip. A replacement mechanism is further arranged on one side of the cabinet body. According to the utility model, the wire and tube bunching work of the circuit and the gas circuit is realized, the disordered wiring of the circuit and the gas circuit is avoided, and the practicability and the convenience of the work station in use are improved.

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 present invention discloses an induction brazing device and a welding method for multi-degree-of-freedom of irregular-shaped components. The induction brazing device includes a working platform, a robotic arm, an induction brazing coil, a three-degree-of-freedom working platform, etc. The two ends of the induction brazing coil are respectively connected to the ends of the two induction brazing coil robotic arms. Through the movement of the robotic arms, a current closed loop is formed at any position; the induction brazing coil is composed of multi-degree-of-freedom joints controlled by a pneumatic circuit, which can realize the brazing of workpieces of different shapes; the three-degree-of-freedom working platform controls the movement of the workpiece to realize the array-type induction brazing requirements of different positions of the workpiece; the three-degree-of-freedom working platform and the robotic arm realize intelligent coordinated movement through an adaptive linkage controller, which not only realizes the convenient clamping and disassembly of the workpiece, but also is applicable to the brazing of a large number of workpieces; the temperature monitoring device robotic arm can control the temperature monitoring device to monitor the surface temperature distribution of the workpiece in real time from multiple directions and angles.

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.

The automatic press-fitting equipment is arranged on a pump body production line of a compressor and comprises a rack, a jacking mechanism is installed on the rack and used for jacking up a tool plate on the pump body production line, a press-fitting mechanism is arranged above the jacking mechanism and comprises a stand column arranged along the Z axis, and the stand column is arranged on the rack and used for jacking up the tool plate on the pump body production line. The bottom end of the stand column is fixedly connected with the rack, the upper end of the stand column is provided with a support A, the support A is provided with an air cylinder A, the bottom of the support A is provided with a support B, the support B is in sliding connection with the support A, and the support B slides in the Y-axis direction. The output end of the air cylinder A is connected with the support B. The support B is provided with a tongue pressing assembly and an air cylinder B. The tongue pressing assembly is used for ejecting an elastic pin. The air cylinder B is positioned on one side of the pump body; an electric box, a gas circuit assembly and a control module are arranged in the rack, and a touch screen is arranged on one side of the rack; the piston elastic pin press-fitting device achieves automatic press-fitting of the piston elastic pin, reduces labor intensity and improves production efficiency.

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.

Assembly (100) for vehicle (1) comprising: N disc brakes (2) and a system (20) for capturing braking particles comprising: a single vacuum source (22); a pneumatic circuit (24, 26, 32, 34, 36, 38) extending from the vacuum source (22) to the N brakes (2); and a control unit (30) configured to fluidically connect the vacuum source (22) to each of the N brakes (2) sequentially. Abstract figure: Figure 1

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.

The invention is suitable for the technical field of reversing valves, and provides a structure-optimized electromagnetic reversing valve which comprises an oil outlet assembly additionally arranged on a reversing valve body, the oil outlet assembly comprises a plurality of unit oil outlet pipes, each unit oil outlet pipe comprises a caliber adjusting pipe and an inner elastic cylinder, the caliber adjusting pipe is arranged on the outer side of the inner elastic cylinder in a sleeving mode, and the caliber adjusting pipe is arranged in the inner elastic cylinder in a sleeving mode. The inner elastic cylinder is connected with the outer elastic cylinder; the caliber adjusting pipe comprises a plurality of caliber adjusting rings; the oil outlet hole diameter of the oil outlet channel of the unit oil outlet pipe is adjusted by adjusting the hole diameters of the local caliber adjusting rings; the electromagnetic reversing valve further adjusts the fluid pressure according to actual needs, the situation that multiple unit oil outlet pipes need to be independently connected with an external pneumatic device, dependence on an external air source is caused, the system size and energy consumption are increased, and an air path prone to faults is avoided is avoided.

This method for diagnosing a pneumatic circuit in a component-mounting device includes: a component-holding head having a suction nozzle; an air flow path leading to the suction nozzle and a flow-path-switching unit for switching the air flow path so as to be connected to one of an atmospheric opening, a positive pressure source, or a negative pressure source; and a pneumatic circuit including a flow-rate-measuring instrument for measuring the air flow rate in the air flow path between the suction nozzle and the flow-path-switching unit. The method for diagnosing the pneumatic circuit determines a failure of the pneumatic circuit on the basis of a measurement result by the flow-rate-measuring instrument of a transient response of the air flow rate associated with switching of the connection by the flow-path-switching unit.

Disclosed is an assembly (100) for a vehicle (1), comprising: N disc brakes (2) and a brake particular capture system (20) comprising: a single vacuum source (22); a pneumatic circuit (24, 26, 32, 34, 36, 38) extending from the vacuum source (22) to the N brakes (2); and a control unit (30) configured to fluidically connect the vacuum source (22) to each of the N brakes (2) sequentially.

A car air conditioning system has a pneumatic circuit to feed an air flow into a passenger compartment of a vehicle, and a cooling circuit to cool the air flow fed along the pneumatic circuit; the pneumatic circuit being provided with a three-way joint, which has an inlet connected to a first pneumatic duct, a first outlet connected to a second pneumatic duct, a second outlet communicating with the passenger compartment of the vehicle, and a shutter, which is movable from and to a closing position, wherein the inlet is separate from the two outlets.

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.

To provide a pneumatic circuit which enables reduction of a flow rate of compressed air consumed by an air dryer while maintaining functions of a conventional pneumatic circuit, and to provide a control method of the pneumatic circuit.SOLUTION: A pneumatic circuit 1 includes: an air source 2 configured to generate compressed air; and an air dryer 3 capable of removing moisture from the compressed air. At the primary side of the air dyer 3, a first valve 7 is provided in a first passage 4 formed between the air dryer and the air source 2. At the secondary side of the air dryer 3, the passage is divided in two directions at a branch point B. One passage is referred to as a second passage 5 and the other is referred to as a third passage 6. The third passage 6 joins to the second passage 5 at a joint point J. A second valve 10 is provided at the third passage 6. When a spindle rotates, the first valve 7 and the second valve 10 are opened. When the spindle is stopped and purging of the spindle is needed, the first valve 7 is opened and the second valve 10 is closed. When the spindle is stopped and purging of the spindle is not needed, the first valve 7 and the second valve 10 are closed.SELECTED DRAWING: Figure 1