5results about How to "High pressure level" patented technology

The invention discloses a high-pressure axial plunger pump friction pair oil film characteristic testing device and method, and belongs to the technical field of hydraulic elements. Comprising a motor serving as a power source, an external oil source system, a data acquisition card and an industrial personal computer, the motor is connected with a flow distribution pair testing part and a plunger pair testing part through a main shaft, in a flow distribution pair testing device, the actual pump operation condition is simulated through a flow distribution pair swash plate assembly capable of replacing different inclination angles, and the testing precision of a flow distribution pair oil film is improved; in the plunger pair testing device, a plunger pair swash plate with different inclination angles and dynamic balance balancing and a symmetrically arranged long plunger body plunger pair structure can be replaced, and the whole device is connected with a flow distribution pair testing device through a main shaft and a flow distribution piece, so that two friction pairs can be tested at the same time; the plunger pair testing device is simple and reliable in overall structure, parts are convenient to replace, and the detection cost is low.

The present invention relates to a buoyancy regulating device, specifically a micro low-power ultra-high pressure buoyancy regulating device for an underwater robot, which is fixedly mounted on an end cover, and serves as both a pressure-resistant sealing structural member of the underwater robot and a hydraulic valve block of the entire buoyancy regulating system. The present invention utilizes a crankshaft to rotate and drive a micro single plunger unit to replace a finished hydraulic pump, effectively reducing the volume and weight of the buoyancy regulating device, and adopts a self-locking electromagnetic push rod in conjunction with a one-way valve to replace a finished hydraulic switch valve, and utilizes the rebound force of an outer oil bag to form a passive oil return system that consumes little energy, and a rolling diaphragm-type inner oil bag system with high buoyancy detection accuracy. The present invention has a simple structure, light weight (only 800g), high working pressure (70MPa), and low energy consumption, and is widely applicable to various conventional and micro underwater robots.

The utility model belongs to the technical field of rubber pipe joints, and particularly relates to an ultrahigh-pressure rubber pipe joint assembly, which comprises a pipe joint and a flange, and is characterized in that connecting parts are arranged on two sides of the pipe joint, slope structures with wide outsides and narrow insides are arranged on the connecting parts, and slope grooves matched with the slope structures are arranged on one side of the flange; the pipe joint comprises a framework layer, an inner rubber layer arranged in the framework layer and an outer rubber layer arranged outside the framework layer. A slope structure with the wide outer portion and the narrow inner portion is arranged on the connecting portion of the pipe connector and matched with the slope groove in the flange. Due to the design that the slope surface structure is wide outside and narrow inside, the connecting part can be firmly embedded between the flanges when being pressed, so that the compression resistance of the pipe joint is obviously enhanced, and the pressure grade of the whole rubber pipe joint is effectively improved.

The present invention discloses a high-pressure hydrogen sampling device, including a shell placed on a plane, and a high-pressure spiral tube is installed on the left side of the shell, and a control valve is provided at one end of the high-pressure spiral tube, and the high-pressure spiral tube has high pressure resistance and can be adjusted in any direction; a pressure regulator is arranged inside the lower part of the shell, and a high-pressure metal hose is installed at the left end of the shell; two sets of relief valves and pressure gauges are arranged inside the upper part of the shell; and also include: a bearing frame plate, which is fixedly installed on the outer side of the left end of the shell; a storage tank, which is spirally opened inside the bearing frame plate; a first rotating rod, whose movable shaft is installed inside the bearing frame plate; and a protective angle, which is installed at the upper corner of the shell. The high-pressure hydrogen sampling device is easy to control, solves the problem of difficult and dangerous pressure control of manual switch valves, and is convenient for storing the high-pressure metal hose for carrying and use.

The invention discloses a mass flow meter measuring pipe bending tool and a machining method, and relates to the technical field of mass flow meter measuring pipes, the pipe bending tool comprises a base, a main body pipe bending module and an end part pipe bending module, the main body pipe bending module comprises a main body pipe bending mold, the side wall of the main body pipe bending mold is provided with a main body guide groove, the main body pipe bending mold is in a triangular prism shape, and the end part pipe bending module is connected with the main body guide groove; a first side edge and a second side edge of the main body pipe bending die are provided with fillets, a third side edge of the main body pipe bending die is provided with a chamfer, and the edge of the chamfer is subjected to smooth treatment; the end part pipe bending module comprises an end part pipe bending mold and an end part guide groove; the processing method comprises the following steps: bending the measuring pipe main body by utilizing the main body pipe bending module, and respectively bending elbows at two ends of the measuring pipe main body by utilizing the two end part pipe bending modules. The whole pipe can be bent into a product at a time through the pipe bending tool, the pipe bending tool is suitable for machining of a single-layer double-pipe bent pipe, and the production cost is low; and the product has no joint, and has the advantages of smaller pressure loss, higher pressure grade and higher metering precision.