889 results about "Pressure - action" patented technology

The invention provides an air tightness detection device of a pressure balance type plug valve, and relates to the technical field of valve air tightness detection. An air tightness detection device of a pressure balance type plug valve comprises a water pool, an adjusting mechanism, two clamping mechanisms and an end sealing mechanism, the end sealing mechanism comprises two groups of positioning assemblies and two groups of sealing assemblies, and the positioning assemblies and the sealing assemblies are communicated and used for enabling the sealing assemblies to generate axial displacement. The sealing assembly is coaxially arranged in multiple layers, the structures of all the layers of the sealing assembly are the same, the sealing assembly is used for being inserted into an inlet and an outlet of a plug valve to be detected, and by means of the multi-layer design of the sealing assembly and the design that the positioning assembly enables each layer of the sealing assembly to generate independent axial displacement, the plug valve to be detected can be detected. The sealing assembly is adapted to plug valves to be detected with different calibers; the sealing assembly has the action of expansion under the action of air source pressure, so that the part inserted into the plug valve to be detected is in sealed connection with the plug valve, and the sealing performance is ensured.

The invention provides a metal part assembling tool and method, and relates to the technical field of bearing press fitting, and the assembling tool comprises a bearing rotating pedestal, a central supporting rod shaft, a tool table, a press fitting barrel mechanism and a plurality of shaft body clamping parts. The tool table is rotatably arranged on the bearing rotating pedestal, and the periphery of the tool table is divided into a feeding area, an assembling area and a discharging area. The method comprises the steps that a shaft body part is placed in a tool step groove in a feeding area and is positioned and clamped by a shaft body clamping component; in the assembling area, the cylinder press-fitting mechanism adsorbs the bearing parts through an electromagnetic suction ring, and the center of the bearing parts is aligned with the positioning column assembly by aligning the clamping and pressing part; the press-fitting cylinder drives the press-fitting cylinder to press downwards, the pressure measuring induction block is triggered after the positioning column assembly makes contact with the shaft body part, the electromagnetic suction ring is controlled to be powered off, clamping and pressing are released, and the shaft body part is automatically sleeved with the bearing part under the action of pressure. And finally, the assembly body rotates to a discharging area to complete discharging. Full-automatic, high-precision and continuous assembly of the bearing and the shaft body is achieved.

The invention relates to the technical field of oil development, in particular to a shale oil and gas fracturing sliding sleeve capable of being opened and closed repeatedly and a using method. According to the technical scheme, a central pipe fracturing liquid inlet is formed in the upper side of a central pipe, and a reversing rail is arranged on the surface of the outer wall of the middle; a sealing cylinder sleeve and a one-way circulating valve carrier are sleeved outside the central pipe, a fracturing piston, a swivel pressing cap and a reset spring are installed in an annulus, a constant-pressure opening cavity is formed in the inner wall of the fracturing piston, a swivel is installed in the swivel pressing cap, a track pin is installed in the swivel, and the position is moved along a reversing track on the surface of the outer wall of the central pipe through the track pin. The fracturing piston moves downwards to the position of the cylinder sleeve fracturing liquid outlet under the action of pressure, the fracturing function is started, fracturing liquid is sprayed out along the cylinder sleeve fracturing liquid outlet to enter a target fracturing layer, fracturing construction of a plurality of fracturing layers can be achieved through multiple times of fracturing liquid injection and injection stopping, the fracturing sliding sleeve can be repeatedly opened and closed, and the fracturing construction efficiency is improved. And fracturing construction requirements of shale oil and gas with different layers can be met.

The invention discloses an engineering geology grouting reinforcement device, and relates to the field of geology grouting reinforcement, the engineering geology grouting reinforcement device comprises a mounting rack, the mounting rack is fixedly connected with a first telescopic driving part, the output end of the first telescopic driving part is fixedly connected with a mounting plate, and the mounting plate is fixedly connected with a grouting pipe. The grouting pipe is used for pressurizing and grouting, so that the grout enters a reinforcing gap under the action of pressure; after filling is conducted for a period of time, the injection-compression pipe moves downwards, the sealing plate blocks the grouting opening under the action of the spring to prevent grout from flowing back, meanwhile, the injection-compression pipe moves downwards to extrude the grout, the extrusion force is further increased, and geological gaps are filled with the grout more sufficiently. Through the reciprocating operation, the geological reinforcement position can be fully grouted, the stability and strength of the geological structure are effectively enhanced, the quality and reliability of grouting reinforcement are greatly improved, and the reinforcement requirement under the complex geological condition is met.

What is disclosed in the present invention is a self-locking hook to avoid unexpected opening. When a press-button is pressed down, a spring is compressed, a pressing arm and an axle pin are completely inserted into an insertion hole, at this point, the axle pin leaves a transverse clipping position and forms an openable state with a support arm, in which they can rotate along the curved slide rail in a mounting slot. An elastic arm is mounted inside the mounting slot and is pressed upon the bottom surface of the support arm to push a lock hook and maintain the locking state between a lock arm and a hook arm. The lock hook be rotated only when the press-button is pressed down. The present invention can avoid direct opening of the lock hook under a pressing force, thus preventing unexpected opening and loosening of the hook.

The embodiment of the utility model relates to the technical field of electromagnetic valves, and discloses a high-temperature electromagnetic valve group. The high-temperature electromagnetic valve set comprises a plurality of electromagnetic valves, a plurality of main valves, a high-temperature fuel oil channel, a cold oil channel and a first channel. The plurality of main valves are respectively connected with the plurality of electromagnetic valves one by one, each electromagnetic valve comprises an electromagnetic valve upper valve seat, an electromagnetic valve lower valve seat, an electromagnetic valve upper valve core and an electromagnetic valve lower valve core, each electromagnetic valve is connected with an electromagnetic valve upper channel and an electromagnetic valve lower channel, and each main valve comprises a main valve pilot cavity and a main valve piston; and the high-temperature fuel oil channel comprises a high-temperature fuel oil inlet and a plurality of high-temperature fuel oil outlets, high-temperature fuel oil is introduced into inner cavities of the main valves through the high-temperature fuel oil inlet, and when the electromagnetic valves are powered off, the main valve pistons move upwards under the pressure action of the high-temperature fuel oil, the main valves are opened, and the high-temperature fuel oil flows out through the high-temperature fuel oil outlets. According to the device provided by the embodiment of the invention, the oil consumption of the high-temperature electromagnetic valve group can be reduced.

The invention relates to the technical field of cross shafts, and discloses an efficient lubricating needle bearing cross shaft which comprises a cross center part, a first oil injection assembly is arranged on the cross center part, a second oil injection assembly is arranged in the cross center part, and the first oil injection assembly comprises an oil injection nozzle. A first oil cavity is formed in the cross-shaped center part, and a first oil injection groove is formed in the cross-shaped center part. According to the efficient lubricating needle bearing cross shaft, a grease gun is used, an oil outlet of the grease gun is tightly pressed on an oil injection nozzle, it is ensured that lubricating oil enters a first oil cavity through the oil injection nozzle under the pressure effect, and a first sealing plate and a first spring move downwards to the position below a communicating hole channel under the pressure effect; and meanwhile, after the second oil cavity is filled with the lubricating oil, the first oil cavity is slowly filled with the lubricating oil, the lubricating oil flows out of the first oil injection groove, and primary oil injection can be achieved.

The invention discloses a hydraulic oil cylinder with an axial supporting protection function, and belongs to the technical field of hydraulic cylinders, the hydraulic oil cylinder comprises an outer cylinder body, an oil cylinder rod and a first piston, a center oil cavity is formed in the outer cylinder body, the first piston is fixedly connected to the bottom of the oil cylinder rod, and the oil cylinder rod and the first piston are both slidably connected to the interior of the center oil cavity; a pressure buffering structure is connected into the outer cylinder body, when the oil cylinder rod bears pressure, the pressure buffering structure and the magnetic supporting structure are matched with each other to jointly share the pressure borne by the oil cylinder rod, a supporting rod in the magnetic supporting structure can transmit the pressure of the oil cylinder rod to a second piston, and therefore the oil cylinder rod is prevented from falling off. The second piston slides downwards in the storage cavity and extrudes the magnetorheological fluid, the stress of the oil cylinder rod is relieved through the buffering characteristic of the magnetorheological fluid, and therefore protection on the oil cylinder rod is effectively enhanced, and the stability and reliability of the hydraulic oil cylinder under the pressure effect are improved.

The invention provides a carbon dioxide capture system based on a calcium-based granular material and a control method of the carbon dioxide capture system. The system comprises a reactor, a decomposition bin, a conveying branch and an input branch, the input branch inputs raw flue gas to the reactor; the conveying branch conveys a calcium-based particle material to the reactor by using the heated flue gas; the reactor is used for controlling the internal temperature by selecting the raw flue gas input by the input branch so as to control the adsorption reaction; the decomposition bin is used for controlling the movement of the supporting plate under the mechanical action and the air pressure action so as to guide the flowing of the materials and further control the desorption reaction. A set of complete and ingenious heat circulation process and material circulation process is constructed, the circulation processes are linked with each other, the structural design is ingenious and practical, and while efficient adsorption and desorption of carbon dioxide are guaranteed, the energy utilization efficiency is improved, the energy consumption is reduced, and the equipment maintenance cost and the energy purchase cost are reduced.

The utility model relates to the technical field of ball valves, in particular to a grease injection structure of a forged steel fixed ball valve, which comprises a main valve body, a ball body and a valve seat component, a first grease injection channel is arranged in the main valve body, a second grease injection channel is arranged in the valve seat component, and the first grease injection channel is communicated with the second grease injection channel; the second grease injection channel comprises an infusion section and a sealing section, an opening of the infusion section faces the sealing face of the ball body, an opening of the sealing section is communicated with the containing cavity channel, sealing rubber is arranged in the sealing section, the sealing rubber can slide in the sealing section under the pressure effect of a medium, and baffle rings are further arranged at the two ends of the sealing section. The baffle ring is used for limiting the sealing rubber to only slide in the sealing section, and the first grease injection channel communicates with the infusion section. Compared with a traditional operation mode that sealing grease is supplemented after shutdown, continuity of pipeline production operation can be guaranteed, the interval time of grease injection maintenance is remarkably prolonged, and the working intensity of operators is reduced.

The utility model relates to the technical field of fire fighting equipment, and discloses a fire hose quick connecting and sealing device which comprises a connecting male head, the outer side of the connecting male head is sleeved with a connecting female head, the outer side of the connecting female head is fixedly sleeved with a fixing seat, a cavity is formed in the fixing seat, and a piston mechanism is arranged in the cavity; a sealing seat is arranged on the inner wall of the female connector, a mounting groove is formed in the inner wall of the sealing seat, a sealing mechanism is arranged in the mounting groove, a groove is formed in the outer side of the male connector, and a limiting mechanism is arranged between the groove and the female connector. Compared with the prior art, the fire hose has the following advantages and effects that by arranging the sealing mechanism, a tiny gap between the connecting male head and the connecting female head can be effectively filled through the expanded sealing air bag, the purpose of preventing fire fighting water from leaking from the connecting part under the pressure effect is achieved, and therefore the sealing performance and reliability of the fire hose during water passing are guaranteed, and the service life of the fire hose is prolonged. And a powerful guarantee is provided for smooth fire-fighting operation.

The invention provides an internal flow field balancing device for a high-temperature and high-pressure closed container. Comprising a pulley, a transmission mechanism, a clutch, a turbulent flow mechanism, a frequency modulation motor, a sealed cabin, a pressure maintaining cabin and a pressurizing device, a rotating cage is arranged on the pulley and is driven to rotate through a rotating mechanism; a tray is hung on the rotating cage, and an accommodating object is accommodated on the tray; the transmission mechanism is arranged at the closed end of the tank body; one end of the clutch is connected with the transmission mechanism; the turbulence mechanism is provided with a transmission shaft, blades, a driving gear and a sealing ring are arranged at the extension end of the transmission shaft, the blades are used for adjusting airflow distribution in the tank body, and the driving gear is connected with the input end of the transmission mechanism and used for driving the transmission mechanism; the sealed cabin is arranged outside the sealing head at the closed end of the tank body; the pressure maintaining cabin is arranged on the outer side of the sealed cabin, and a sealing ring is arranged in an inner cavity, adjacent to the pressure maintaining cabin, of the sealed cabin. The pressurizing device is connected with the pressure maintaining cabin, and pressure of the pressurizing device acts on the outer side of the sealing ring to maintain pressure balance on the two sides of the sealing ring.

The invention discloses a model test device for simulating a diffusion rule of single-fracture grouting slurry, a lower boundary pressure plate and an upper boundary pressure plate are sequentially mounted in a flat plate placement groove in a sliding fit manner, and the lower boundary pressure plate is attached to the bottom wall of the flat plate placement groove; the flat plate placement groove is connected with a fixed frame, the gap adjusting assembly is movably connected with the fixed frame, an elastic part is arranged between the gap adjusting assembly and the fixed frame, the gap adjusting assembly is pressed on the surface of the upper boundary pressing plate, and a crack simulation space is formed between the upper boundary pressing plate and the lower boundary pressing plate. According to the invention, the gap adjusting assembly is arranged, so that the gap between the upper boundary pressing plate and the lower boundary pressing plate can be adjusted, and simulation tests can be carried out aiming at fractures with different sizes; by arranging the adjusting bolt and the adjusting nut, the upper boundary pressing plate can push the adjusting bolt to slide on the mounting plate to a certain extent under the action of grouting pressure during a test, so that the condition that the crack can change is simulated.

The invention relates to a duct plugging device for bridge prestressed duct grouting, and relates to the field of bridge construction engineering, the duct plugging device comprises a plugging mechanism and a grouting mechanism, the plugging mechanism is provided with a grouting channel, the plugging mechanism comprises a plugging cylinder and an extrusion plate, the grouting channel is arranged on the plugging cylinder, and the grouting channel is located on a moving path of the extrusion plate; the grouting mechanism abuts against the extrusion plate, a piston cavity is formed in the plugging barrel, a piston block is slidably connected into the piston cavity, an elastic film is arranged on the plugging barrel, the elastic film and the plugging barrel are spliced to form a deformation cavity, the deformation cavity communicates with the piston cavity, and a one-way air inlet assembly is arranged on the plugging barrel. In the construction process, an extrusion plate moves in the direction close to the grouting mechanism under the pressure effect of concrete in the hole channel, the extrusion plate drives a piston block to extrude gas in a piston cavity, the gas in the piston cavity enters a deformation cavity, an elastic film deforms and expands, a gap between a plugging barrel and the inner wall of the hole channel can be filled easily, and leakage of concrete grout is reduced.

The utility model discloses a steam-water container which comprises a pressure tank body, an inner cavity is arranged in the pressure tank body, an air inlet nozzle, a water inlet nozzle and a water outlet pipe are arranged on the upper portion of the pressure tank body, the air inlet nozzle and the water inlet nozzle are communicated with the upper portion of the inner cavity of the pressure tank body, and the lower end of the water outlet pipe extends to the lower portion of the inner cavity. The steam-water container is a pressure tank body and has good sealing performance, meanwhile, gas and water are fed from the upper portion, carbon dioxide and water start to be mixed on the upper portion of the inner cavity when entering the tank body, certain air pressure is formed on the upper portion of the inner cavity, and when the water level is higher than the lower end opening of the water outlet pipe, the water outlet pipe is opened; and water in the tank body enters the water outlet pipe under the action of pressure and is discharged without additional power.

The utility model discloses a reverse osmosis membrane shell sealing structure. The reverse osmosis membrane shell sealing structure comprises a membrane shell and an end cover assembly arranged in the inner space of the membrane shell, the end cover assembly comprises an end cover bearing plate, an end cover sealing plate and a U-shaped end cover sealing ring; the end cover bearing plate is connected with the membrane shell, the end cover sealing plate is arranged on one side of the end cover bearing plate and connected with the membrane shell, and the middle of the end cover sealing plate penetrates through the end cover bearing plate; one end of the U-shaped end cover sealing ring is connected with one end of the end cover sealing plate and located on the inner wall of the membrane shell, and a U-shaped opening faces the interior of the membrane shell; the U-shaped end cover sealing ring is tightly attached to the inner wall of the membrane shell and the end cover sealing plate under the action of pressure to form self-pressure sealing. According to the device, the self-pressure sealing function of the U-shaped end cover sealing ring is utilized, so that the sealing effect of the reverse osmosis membrane shell during high-pressure operation is improved; and when the equipment is stopped, the pressure of the internal medium is zero, and the pressure between the U-shaped sealing ring and the end cover sealing plate only comes from the natural tension of the U-shaped sealing ring, so that the U-shaped sealing ring is very easy to disassemble.

A turboexpander with a turbine wheel coupled to drive a generator in response to a flow of incoming gas. A housing assembly of the turboexpander defines a sealed space, sealed from the incoming gas. The sealed space is in fluid communication with a surface of the turbine wheel such that pressure in the sealed space acts on the turbine wheel. A bypass passage communicates pressure between the sealed space and a space in communication with an outlet of the turbine wheel. The bypass passage includes an changeable flow area to control the communication of pressure between the sealed space and the outlet of the turbine wheel.

The utility model relates to the technical field of piston rods, in particular to an automobile piston rod strength detection device which comprises a workbench and is characterized in that a machining groove is formed in the workbench, a clamp assembly is rotationally connected in the machining groove, a material box is arranged below the machining groove in a drawable mode, supporting columns are distributed on the periphery of the material box, and the supporting columns are arranged on the workbench. Uniformly distributed processing columns are fixedly connected to the upper end of the workbench, a top plate is fixedly connected to the upper ends of the processing columns, and a testing assembly is fixedly connected to the top plate. According to the utility model, when the piston rod is tested by arranging the spring, the pressing block can apply pressure on the spring, so that the pressure of the contact surface of the pressing block is reduced, the abrasion of the pressing block is relieved, the service life can be prolonged, and the pressure on the spring is metered by arranging the pressure gauge, so that the test is carried out objectively.

The invention relates to the field of perforating machines, in particular to an adjustable clamping type automobile part perforating machine. Comprising a punching assembly, and a clamping adjusting assembly is installed on the edge of the top of the punching assembly; when chippings directly flow into the collecting pipe and the position of the punching structure deviates, the output end of the punching structure can directly output the chippings into a cavity filled with frosted sand and stir the chippings with the frosted sand, sound generated by the punching structure drives a noise sensor to send an instruction to a water injection tank, and the water injection tank starts to inject water into the cavity; when the output end of the punching structure and frosted sand filled with water are stirred, passive grinding can be conducted, and the subsequent drilling precision is improved; when the punching machine works, the second sleeving circular ring acts pressure on the first sleeving circular ring, the first sleeving circular ring extrudes a first compression spring to buffer, a first pressure sensor monitors numerical values, and the working effect of the punching machine is improved while the part protection effect is improved.

The invention discloses a high-sealing ball valve with a leakage detection function, and relates to the technical field of valves, the high-sealing ball valve comprises a bottom shaft, a valve body structure, a filler box, a support, a filler gland, a valve cover and an air cylinder, the valve body structure adopts a leakage detection technology, when a leaked medium is captured, the leaked medium can be timely introduced into the detection structure, and the leakage detection function is achieved. Leaked media can be detected in the early stage of leakage, medium loss caused by further expansion of the leakage is prevented, meanwhile, an automatic leakage repairing technology is adopted, when the detection structure detects leakage, the injection structure injects sealing grease to the sealing face between the valve seat and the ball body in time, the sealing grease evenly fills a leakage channel under the pressure effect, and the leakage is avoided. And the continuous leakage of the medium is blocked, temporary filling is carried out, the injection structure is reset after filling is completed, it is ensured that the normal opening and closing functions of the ball valve are not affected, and the medium loss and environmental pollution risks caused by leakage are reduced.

The invention relates to the field of intelligent sensors, and discloses a method for manufacturing a sensitive core of a six-dimensional pressure sensor of a robot based on glass micro-melting, which comprises the following steps of: calculating the deflection of a flat diaphragm corresponding to a glass micro-melting structure so as to analyze the structural strain characteristic of the sensitive core under the action of pressure; calculating the gas viscosity coefficient of the sensitive core body under the dynamic load condition, and calculating the pressed film damping amount of the sensitive core body; performing a temperature cycle test on the sensitive core, collecting thermal zero drift data in the test process, and analyzing the temperature drift stability of the sensitive core; carrying out calibration test on the sensitive core body to obtain non-linearity data, and evaluating the measurement precision of the sensitive core body; and performing optimization processing on the sensitive core body manufacturing process to obtain an optimization result. The manufacturing process stability of the sensitive core body of the six-dimensional pressure sensor of the robot can be improved.

The treating fluid supply system comprises an impeller and a volute, the impeller comprises a rear cover disc, a front cover disc, blades and a hub barrel, the hub barrel is arranged on the inner circumferential side of the rear cover disc, the end of a rotating shaft is connected with a flow guide cap, and a plurality of balance holes distributed in the circumferential direction are formed in the rear cover disc; the impeller is characterized in that the impeller further comprises an adjusting hub, the adjusting hub is arranged on the peripheral face of the hub cylinder in a sleeving mode, and the axial position of the adjusting hub can be automatically adjusted under the pressure effect of a pumped liquid medium; the adjusting hub comprises an arc-shaped outer ring part and an inner cylinder part, a groove is formed in the inner circumferential face of the inner cylinder part, the spring is arranged in the groove, a connecting ring is installed at the left end of the outer circumferential face of the hub cylinder, one end of the spring abuts against the right end face of the connecting ring, and the other end of the spring abuts against the right side face of the groove. According to the pump, the flowing performance of liquid in the impeller cavity can be adjusted, so that the pressure and flow characteristics of the pump can be adjusted, and the multi-working-condition operation efficiency and the output stability of the pump are improved.

The invention discloses an evaporator and power conversion equipment, and belongs to the technical field of radiators. The multiple supporting structures are connected between the first inner wall face and the second inner wall face, part of the supporting structures define a pressure relief area, the pressure relief area communicates with the evaporation cavity, and the strength of the pressure relief area is smaller than that of the area where the other supporting structures are located; the pressure relief part is arranged in the pressure relief area and is arranged close to one supporting structure which forms the pressure relief area in a surrounding mode. The geometric shape of the pressure relief area is suddenly changed at the pressure relief part through the pressure relief part, so that the edge of the part, located in the pressure relief area, of the pressure relief part generates stress concentration under the action of pressure, the yield limit or the breaking strength of a material is easily reached firstly, breakage occurs, and directional pressure relief is achieved. Due to the fact that the wall thicknesses of the shell in the corresponding pressure relief area and the non-pressure relief area are the same, the overall corrosion resistance and strength of the evaporator are improved, and the reliability of equipment is improved.

Disclosed in the present invention is a collision buffering and energy absorption device capable of being folded for storage, comprising a support structure and a collision buffering assembly; the support structure comprises a bottom plate, a top plate and support connection rods, the bottom plate and the top plate being connected to each other at each of four corners by means of one support connection rod; each support connection rod comprises an upper connection rod, a lower connection rod and revolute pairs, the axes of the revolute pairs in each support connection rod being arranged in parallel; the collision buffering assembly is mounted inside the support structure and does not interfere with the support connection rods; when the device is under pressure, the support structure is folded under the action of the pressure and, during the folding process, the collision buffering assembly is deformed by the pressure to absorb collision energy, thus achieving a buffering effect. On the basis of overcoming the defect that traditional collision buffering materials have low longitudinal rigidity and are prone to instability when a collision stroke is too long, the device of the present invention uses an airbag as a collision buffering material to effectively reduce the weight of the device, and can be folded to be stored in a storage state, thus occupying a small space in the storage state.

This utility model discloses an embedded sealing structure for a rivet nut, comprising a body, an annular groove recessed at the end of the body, an abutting part between the annular groove and the edge of the body, a guide part coaxially located in the middle of the annular groove and connected to the body, and a plurality of ribs between the outer wall of the guide part and the annular groove, the tips of the ribs facing the same direction as the guide part. The design of the tips makes it easier for the ribs to penetrate into the metal plate and penetrate deeper, allowing the rivet nut to withstand greater torque. Due to the design of the annular groove, the contact area between the abutting part and the metal plate is much smaller than that of a traditional rivet nut, but the same fastening effect can be achieved. That is, the contact area is smaller under the premise of achieving the same fastening effect. When the product is under pressure, the bottom surface of the product and the surface of the component are more likely to fit together, achieving physical sealing and reaching IP67 protection level.

The invention relates to the technical field of aluminum profile hot extrusion cooling shaping, and particularly discloses an aluminum profile hot extrusion cooling shaping device which comprises a fixing table, a lifting table is arranged at the upper end of the fixing table in a lifting mode, a mounting groove is formed in the lower end of the lifting table, a graphite disc is arranged in the mounting groove in a lifting mode, and a graphite plate is arranged in the middle of the inner bottom wall of the graphite disc. A scraping assembly is arranged on the lifting table, and a switching assembly is arranged on the fixed table. The graphite plate is fixedly placed in the graphite plate, then the graphite plate is lifted into the installation groove, the height of the lifting table is adjusted at the same time, the cambered surface of the graphite plate abuts against the aluminum profile, the graphite plate can rapidly absorb and dissipate heat of the aluminum profile, and the aluminum profile is rapidly cooled, solidified and shaped under the pressure effect. And the scraping assembly is used for scraping the cambered surface of the graphite plate to repair or adjust the cambered surface shape, and the switching assembly is used for switching different graphite plates, so that the production efficiency is improved, and different cambered surface requirements are met.

The utility model provides a crimping device, which comprises a base, a sealing cover and a pressurizing part, and is characterized in that the base is used for placing a to-be-pressed piece; the sealing cover is used for being matched with the base, so that a sealed space is formed between the sealing cover and the base during pressing; the pressurizing part is connected with the sealing cover, and the pressurizing part is used for applying pressure to the flexible medium in the sealing space, so that the to-be-pressed and attached part is pressed and attached under the pressure action of the flexible medium. The crimping device can uniformly apply pressure to each position of the to-be-pressed piece, so that the pressurizing uniformity of the to-be-pressed piece is ensured, and the pressing effect and the performance of the battery are improved.

The utility model relates to a pressure pipeline sealing mechanism which comprises a connecting ring and a sealing ring, a plurality of sets of fastening bolts are arranged on two sets of arc-shaped plates in a threaded mode, and fastening plates are arranged at the bottom ends of the fastening bolts in a rotating mode, so that a sealing structure formed by the connecting ring and the interior of a pipeline is tighter, and the problem of liquid leakage can be effectively avoided. A plurality of sets of inserting blocks are arranged on one side of the connecting ring, a plurality of sets of inserting balls are arranged on the two sides of the sealing ring, the pressure bearing capacity of the whole sealing structure is improved, the service life of the whole sealing structure is prolonged, the whole sealing structure can be moderately deformed under the action of external pressure, a reinforcing layer is arranged on the inner side of the sealing ring, and an oil-resistant layer is arranged on the inner side of the reinforcing layer. The overall stability and the pressure resistance of the sealing structure are effectively enhanced, the pressure bearing performance of the sealing structure is improved, the service life of the sealing structure is prolonged, and the durability and the sealing performance of the sealing structure are improved.

The application discloses a kind of high-precision warping prevention clamping equipment of sheet part based on negative pressure adsorption, belong to the technical field of machine equipment.It includes adsorption platform, is provided with several adsorption holes on adsorption platform, and airflow chamber is arranged in adsorption platform;Plug is installed in adsorption hole, second filter screen is rotatably installed on plug, and torsional spring is installed in the rotary joint of second filter screen;Several adjusting frames are slidably installed on adsorption platform, several locating plates are installed on adjusting frame, threaded rod is rotatably installed on adjusting frame, and threaded rod is threadedly connected with adsorption platform.The plug is inserted into adsorption hole, and the inclined groove of guiding block can be inserted into the locating plate of adjusting frame, so that the plug is forced to drop to the limit position, the top of plug is slightly lower than the mouth part of adsorption hole, the plug is prevented from being damaged by knocking during workpiece clamping process, and the stability of plug after installation is improved when reverse pressure cleaning is prevented from being separated from adsorption hole by pressure.

The present invention relates to an air guide element (1) for movable attachment to an electrical component (2) in the region of an end face of an electric machine (4) comprising at least one stator (8), wherein the air guide element (1) comprises a rotating element (10) in the region of which a pivot point (16) of the air guide element (1) is located, as well as an impact area (12) and at least two pressure surfaces (14, 14'). The air guide element (1) guides and / or distributes a cooling airflow K over the at least two pressure surfaces (14, 14') such that the stator (8) is cooled, and when different pressures (p1, p2) act on the at least two pressure surfaces (14, 14'), the air guide element (1) rotates about the pivot point (16). The invention further relates to an air guide arrangement (100) comprising an electrical component (2) and an air guide element (1).The invention further relates to a method for cooling a stator (8) and to the use of the air guide element (1) and the air guide arrangement (100).