56results about How to "Avoid deformation failure" patented technology

The invention discloses a floating brake pad which comprises a pad back plate, a friction block, a clamp spring, an elastic support sheet arranged between the friction block and the pad back plate. The elastic support sheet comprises a spherical support surface and a support pawl on the outer side of the spherical support surface, wherein the spherical support surface is bonded with a spherical support part of the friction block, and a guiding hole suitable for a positioning part of the friction block to penetrate through is formed at the bottom center of the spherical support surface. The support pawl extend to the bottom of the spherical support surface from the periphery of the spherical support surface in the direction away from the guiding hole, the connection edge of the support pawl is connected with the periphery of the spherical support surface through a smooth transition section, and the support pawl and the support edge extend out of the bottom of the spherical support surface. The floating brake pad solves the problem that a pawl of the elastic support part of the existing brake pad is bent inwards instead of extending outwards, so that when stressed, the elastic support can extend outwards along the direction of the support pawl, and support of the corresponding part cannot fail.

The invention relates to a pressure-keeping coring method for marine drilling. The pressure-keeping coring method comprises the following steps that (1) inner pipe assemblies are put into an outer pipe assembly located at the hole bottom through a spear-head; (2) circulating of well drilling liquid is kept, a piston compensation balance mechanism pushes a core barrel to extend forwards through thewell drilling liquid, a penetrating tool bit only is pressed downwards and does not rotate, after the penetrating tool bit penetrates into a stratum, the outer pipe assembly starts to be rotated, thepenetrating tool bit extrudes and trims a core to enter the core barrel along with the footage per bit, and hole bottom rotating-while-drilling penetrating coring is conducted; (3) the inner pipe assembly b is driven to slide upwards along the inner pipe assembly a through the spear-head, the core barrel filled with core samples slide upwards to enter the inner pipe assembly a, and the core barrel triggers a counterweight pipe of a gravity pipe driving mechanism to slide downwards through a self-weight driving ball valve and to be overturned by 90 degrees; and (4) the inner pipe assemblies are de-jammed from an elastic jamming chamber and lifted out of a wellhead through the spear-head, the core samples are taken out, and the pressure-keeping coring process is completed. According to thepressure-keeping coring method, pressure-keeping sampling of a coring device is achieved, and the coring success rate is increased.

The invention relates to a cable climbing robot, which comprises an outer framework, clamping mechanisms and climbing mechanisms, wherein the clamping mechanisms and the climbing mechanisms are arranged on the outer framework; the outer framework is a cubic framework; each edge of the upper surface and the lower surface of the outer framework is respectively connected with an inner edge frame through a radial frame, and one clamping mechanism and one climbing mechanism are respectively arranged at each side surface of the outer framework; in each clamping mechanism, a ball screw is connected between vertical rods at the side surface of the outer framework; two edges of the ball screw have opposite screwing directions; two screw nuts of the ball screw are respectively hinged to connecting rods; the other end of each of the two connecting rods is hinged to the back part of a clamping support plate, and rolling wheels are arranged at the upper end and the lower end of the clamping support plate and are matched with the radial frame; in each climbing mechanism, a guide rod is hinged to one end of the inner side of the clamping support plate; a guide wheel is arranged on the guide rod; a nitrogen spring is arranged at the other end of the inner side of the clamping support plate and is hinged to a balance beam, and a driving wheel and a driven wheel are respectively arranged at the upper end and the lower end of the balance beam and are connected by a synchronous belt. The cable climbing robot has the advantages that the cable climbing robot can be used for cables with large diameter differences; the clamping force is good; the cable climbing capability and obstacle crossing capability are higher, and the seizure and slippage can be avoided.

The invention relates to a cable climbing robot, which comprises an outer framework, clamping mechanisms and climbing mechanisms, wherein the clamping mechanisms and the climbing mechanisms are arranged on the outer framework; the outer framework is a cubic framework; each edge of the upper surface and the lower surface of the outer framework is respectively connected with an inner edge frame through a radial frame, and one clamping mechanism and one climbing mechanism are respectively arranged at each side surface of the outer framework; in each clamping mechanism, a ball screw is connected between vertical rods at the side surface of the outer framework, and two edges of the ball screw have opposite screwing directions; two screw nuts of the ball screw are respectively hinged to connecting rods; the other end of each of the two connecting rods is hinged to the back part of a clamping support plate, and rolling wheels are arranged at the upper end and the lower end of the clamping support plate and are matched with the radial frame; in each climbing mechanism, a guide rod is hinged to one end of the inner side of the clamping support plate; a guide wheel is arranged on the guide rod; a leading rod is arranged at the other end of the inner side of the clamping support plate, and is hinged to a balance beam; a pressure sensor and a compression spring sleeve the leading rod, and a driving wheel and a driven wheel are respectively arranged at the upper end and the lower end of the balance beam and are connected by a synchronous belt. The cable climbing robot has the advantages that the cable climbing robot can be used for cables with large diameter differences; the clamping force is good; the cable climbing capability and obstacle crossing capability are higher, and the seizure and slippage can be avoided.

The invention discloses a low-cost titanium alloy indirect additive manufacturing method. The method comprises the following steps that spherical powder and / or doped irregularly shaped titanium or titanium alloy powder and an adhesive are fully mixed, stirred and heated, wherein the powder contains yttrium accounting for 0.2-1.8% of the total weight of the mixed powder, the addition amount of theadhesive accounts for 25-45% of the total volume of the mixed powder, and the adhesive is prepared from, by weight, 45-55 parts of polyethylene macromolecules, 45 -55 parts of paraffin and 4-5 parts of stearic acid; the mixed powder is prepared into granular feed through a granulator, and an injection molding machine is used for processing the granular feed into aluminum alloy wires; the titaniumalloy wires are loaded on a conventional plastic 3D printer, and a titanium alloy green body is printed; the green body is put into a solvent degreasing device or a container for degreasing, and the adhesive is removed; and by means of a high-temperature pressureless sintering method, the aluminum alloy green body is solidified to obtain a highly dense titanium alloy indirect printing finished product. The method has the beneficial effects of being low in material cost, low in printing equipment cost and good in printed product quality.

The invention relates to an integrated test device and method for compressive and bending rigidity of a metal bipolar plate. The device consists of hydraulic system, support plate, guide sleeve, guide column, dowel rod, pressure plate, pressure head, metal bipolar plate, support table, slider, slide rail, workbench, displacement sensor, data processing system and hydraulic control System Components. The test method is to press the metal bipolar plate by gradually increasing the pressure of the pressure plate or the pressure head through the hydraulic control system, and observe the displacement-pressure image in the data processing system. The pressure corresponding to the inflection point in the image is the metal bipolar plate. withstand extreme loads. The present invention provides a feasible and effective testing device and method for testing the compressive and bending stiffness of metal bipolar plates, which can predict in advance the ultimate load that the metal bipolar plates can withstand, thereby preventing the metal bipolar plates from being subjected to The loss caused by excessive load deformation failure.

The invention relates to the field of medical apparatuses, in particular to a dynamic stabilization implanting unit for the spine. The dynamic stabilization implanting unit for the spine is characterized in that inert silicone rubber material is added into the elastic region of the implanting unit. Rigid material and flexible material are organically combined to form the structure of the elastic region, and thus the problem caused by deformation and failure of the elastic region in unit time is solved, and the fatigue strength of the elastic region is increased.

The invention discloses a profiling device which comprises a cam fixed to a lathe bed. The top of the cam is provided with a profile. The profiling device is characterized in that the profiling device further comprises a rolling wheel, the bottom of the rolling wheel is arranged on the profile of the cam, and a spring is arranged on the top of the rolling wheel; a force sensor is arranged between the spring and the rolling wheel; the rolling wheel is connected with a carriage and a cutting tool; the moving direction of the carriage is perpendicular to the extending-retracting direction of the spring. Preferably, the spring is vertically arranged on the top of the rolling wheel, and the carriage is arranged on the top of the spring. Operators can conveniently find out whether problems occur to profiling immediately and solve the problems in time, and defective products are prevented.

The invention discloses a liquid flow one-way valve arranged at a liquid flow inlet / outlet. The liquid flow one-way valve comprises a sleeve, a sealing part and a duckbilled part, wherein two ends ofthe sleeve are respectively a liquid inlet end and a liquid outlet end; the sealing part is arranged on the outer wall of the liquid inlet end of the sleeve and outwards bulges to form a circle of bosses; the duckbilled part is arranged in the sleeve and forms a duckbilled shape composed of a pair of inclined surfaces converging and extending from the top end of the duckbill from the inner wall ofthe sleeve; a slit on one side of the discharged liquid flow on the top of the duckbill is positioned at the liquid outlet end of the sleeve; and when the liquid inlet end is positioned in a negativepressure, the slit of the duckbill is closed to prevent the liquid flow from passing. Meanwhile, the invention further provides a water toothpick using the liquid flow one-way valve. The sealing reliability of the one-way valve is greatly improved, the strength of the one-way valve is improved, the pressure borne by the one-way valve is increased, deformation failure of the one-way valve under reversed compression is avoided, the water outlet slit of the duckbill is prevented from being torn, and the service life is prolonged; and the water toothpick is smooth in liquid inlet and liquid outlet and excellent in leakage-proof effect.

The invention provides a method for forging a roller for a crawler excavator. The method comprises the following steps of: firstly heating a blank bar; secondly forging the upper half part of the roller through an initial forging die; thirdly, forming the lower half part of the roller through a final forging die, namely forging the two parts of the roller respectively by means of two sleeved dies, wherein the forged rollers have the same central axis and do not need to be welded. Besides, the method is capable of ensuring full filling of a forge piece and also capable of effectively avoiding the deformation failure of the die.

The invention provides a rubber sealing strip used for an outer protective plate of an automobile door. The rubber sealing strip used for the outer protective plate of the automobile door is composed of a middle plate-shaped supporting portion, a first insertion claw portion, a second insertion claw portion and an outer arc protruding portion. The two insertion claw portions are located on the two sides of the plate-shaped supporting portion respectively, and the outer arc protruding portion is located on the two sides of the plate-shaped supporting portion. The rubber sealing strip is characterized in that a multi-body co-extrusion forming technology is adopted by the rubber sealing strip, and the hardnesses of the two insertion claw portions, the hardness of the plate-shaped supporting portion and the hardness of the outer arc protruding portion become smaller gradually. According to the rubber sealing strip, the hardnesses of the materials of different portions are adjusted by utilizing the multi-body co-extrusion technology, the two insertion claw portions have high hardness, so that the tension of the two insertion claw portions in the installation groove become larger, enough anti-disengagement strength is guaranteed, curling deformation caused in the assembly process is reduced, the assembly speed is increased, it is guaranteed that the rubber sealing strip can be installed in place, and the assembly quality is improved; the plate-shaped supporting portion has the moderate hardness, and therefore ineffectiveness caused by deformation of the sealing strip is avoided; the hardness of the outer arc protruding portion is low, so that the fit performance between the outer arc protruding portion and a metal plate of a door frame is improved, and therefore the leakproofness between the automobile door and the door frame is improved.

The invention discloses an emergency blocking door, which includes two door frames. The two door frames are internally and externally fixed to a passage side by side, an outer gate and an inner gate corresponding to the two door frames are respectively arranged in the passage between the two door frames, the outer gate and the inner gate are respectively hinged to the passage supporting surfaces corresponding the bottoms, sides or tops of the door frames and driven by air bags, inflating depends on chemical reaction in the air bags during emergency and risk avoidance, explosive impact is produced to quickly push the inner gate and outer gate to close, and an emergency hazard source is closed on the side, which the gate is located on, of the passage. The emergency blocking door is differentfrom an emergency gate closing action of a traditional mechanical gate, reaction is faster, action is coherent, the anti-resistance ability is high, reliability and security are high, in addition, according to the emergency blocking door, after closing the door, the built-in high-pressure air bags and a supporting mechanism can squeeze the gates on both sides, sealing performance and strength ofgates on both sides are improved, the blocking ability of the blocking door is further improved, in addition, and anti-impact effect and stability are good due to the fact that vibration absorption capacity is high when the airbags inflate.

The invention relates to a low-temperature brazing material for titanium alloy, which relates to a low-temperature brazing material used for metal welding, especially for welding various and titanium alloy parts. It is characterized in that the brazing material is powdered silver-based brazing material, and its weight percentage is composed of: Sn: 20%-40%, Cu: 10%-30%, Ni: 0.5%-5%, and the rest are Ag and unavoidable impurities. After the titanium alloy parts using the brazing filler metal of the present invention are vacuum brazed, the bonding strength of the parts can reach more than 50 MPa. Since the precise, light and thin titanium alloy parts are brazed at 600°C, deformation and failure of the parts are avoided, and the weld seam has high strength and corrosion resistance.

The invention discloses a smelting control method of a metal electroslag remelting furnace. The method is characterized by comprising the following steps: before smelting, firstly installing three position sensors used for detecting the position of an electrode in the metal electroslag remelting furnace; secondly before smelting and during smelting, detecting the position of the electrode by the position sensors, feeding the position of the electrode, detected by the position sensors, back to a data control processing system and then controlling executive devices to move a crystallizer to achieve automatic centering of the electrode under closed-loop control, wherein the three position sensors are arranged in a concentric circle along the axial lead of the crystallizer and are uniformly distributed and fixed on the upper surface of the crystallizer in a ring shape. The method has the advantages that the method can conduce to facilitating centering, reducing the phenomenon of failure of the crystallizer and prolonging the service life of the crystallizer.

The invention provides a railway flat car underframe and a manufacturing method thereof. The railway flat car underframe comprises: a transversely extending crossbeam, and a middle beam longitudinally penetrating through the crossbeam, the crossbeam and the middle beam respectively include a top crossbeam cover plate and a top middle beam cover plate, and the crossbeam cover plate includes a The sub-cover plates on both sides of the center sill cover plate, the sub-cover plates are welded and fixed to the center sill cover plate, and the front and rear sides of the cross beam cover plate form a longitudinal extension of the center sill cover plate The curved transition surface of the smooth joint of the sides. The railway flat car underframe of the present invention optimizes the stress state at the joint between the cross beam and the middle beam, effectively avoids stress concentration, improves the fatigue life of the weld, and can further prevent part of the stress value from rising to the yield of the cross beam limit, thereby improving the bearing capacity of the beam and avoiding the deformation and failure of the beam.

The invention discloses titanium alloy with excellent hot-workability. The titanium alloy comprises the following alloy elements in percentages by weight: 5.8-6.8% of Al, 3.8-4.8% of V, 0.5-1.5% of Fe, and the balance being titanium and unavoidable impurities. The invention also discloses a preparation method of the titanium alloy, and the method comprises the following steps: preparation of alloy clad, compacting of electrodes and welding, vacuum arc remelting, cogging and forging, free forging, and the like. The Fe element is added, resistance for flowing deformation in plastic deformation of alloy hot-working is reduced, so that compared with TC4 alloy, the cost for hot-working of the alloy is reduced by 15%.

The present invention provides an optical film and a method of manufacturing the same, even the thin optical film is wound to be coil-shaped, deviation and loosening of the winding can be prevented, and a black belt fault or a film deformation fault can also be prevented. A target value TM(x)mm of the thickness of the film is set according to the formula as described in the specification. The manufactured film is measured along the width direction of the film every 0.5 mm, and a function made by drawing the measured values is set to be T(x)mm so as to adjust the thickness distribution in a manner of making the T(x) in 100 + / - 0.8 % of the TM(x).

The invention discloses a liquid storage device comprising a device body, a drying component and a filtering piece. The device body is of a cylindrical structure with an inner cavity, wherein one endof the cylindrical structure is open. The open end of the device body is provided with a plug. The plug is inserted into the cavity of the device body and fixed to the device body. The plug is provided with a first connection hole and a second connection hole. The first connection hole is located at one end in the device body and formed on the upper side of the open end of the device body. The inlet end of the filter piece is fixed to the end, located in the device body, of the first connection hole. An interval is reserved between the outer wall of the circumferential side of a matrix body and the inner wall of the device body so as to form a flow channel. The liquid storage device is of an integrated device and not divided into an upper device body and a lower device body any more, and on the premise of guaranteeing the filtering performance, the seal performance and reliability are further improved. The liquid storage device has the advantages that the structure of parts is simple,the appearance is regular, and manufacturing and assembling are convenient.

The invention provides a pipe joint, a disassembly and assembly tool and an air conditioner, and relates to the technical field of the air conditioners. The pipe joint comprises a single joint and a cylindrical nut which can be fastened and matched with each other, and a clamping groove is formed in the outer side surface of the nut. The disassembly and assembly tool is used for disassembling andassembling the pipe joint. The air conditioner is connected with an indoor unit connecting pipe and an outdoor unit connecting pipe. The pipe joint is tightened up by being directly sleeved, the installation efficiency is improved, the shape surface of the nut is in a non-standard shape, deformation and failure of the nuts can be effectively avoided. The disassembly and assembly tool enters from the slope of the nut, and after the upper end of the disassembly and assembly tool is flush with the nut, a separation structure arranged limits the disassembly and assembly tool to continue moving upwards, so that the disassembly and assembly tool is more labor-saving in use.

The invention relates to a connector and an insulator thereof. A contact part of the connector and the insulator are assembled in place; a blocking edge on a contact part installation hole of the insulator blocks and limits the contact part in a backward direction; and a hook on an elastic cantilever of the insulator blocks and limits the contact part in a forward direction, so that the contact part is located between the blocking edge and the hook, the insertion fore of the matched contact part of the connector during insertion finally acts on the blocking edge, a deformation failure caused by stress of the elastic cantilever is avoided and the problem of a fixation failure of the contact is solved.

The invention relates to a battery shell molding process. The battery shell molding process differs in that the method comprises the following steps of step (a), laying an SMC raw material sheet on acore; step (b), closing a die, applying pressure and maintaining pressure; step (c) when the pressure maintaining time reaches 235s, starting air blowing to a cavity, when the pressure maintaining time reaches 240s, ending pressure maintaining, and starting to blow air to a core while continuing to blow air to the cavity, wherein the air blowing pressure of the core and the cavity ranges from 0.4Kpa to 0.7 Kpa; stopping air blowing to the cavity when the pressure maintaining ending time reaches 17s; and stopping air blowing to the core when the pressure maintaining ending time reaches 18s; (d) opening the die; and (e) taking out a molded battery shell, placing the molded battery shell on a shaping tool, and blowing air to the battery shell to shape and cool the battery shell. The batteryshell manufactured by the invention has the advantages of light weight, corrosion resistance and simple process flow.

The invention discloses a smelting control method of a metal electroslag remelting furnace. The method is characterized by comprising the following steps: before smelting, firstly installing three position sensors used for detecting the position of an electrode in the metal electroslag remelting furnace; secondly before smelting and during smelting, detecting the position of the electrode by the position sensors, feeding the position of the electrode, detected by the position sensors, back to a data control processing system and then controlling executive devices to move a crystallizer to achieve automatic centering of the electrode under closed-loop control, wherein the three position sensors are arranged in a concentric circle along the axial lead of the crystallizer and are uniformly distributed and fixed on the upper surface of the crystallizer in a ring shape. The method has the advantages that the method can conduce to facilitating centering, reducing the phenomenon of failure of the crystallizer and prolonging the service life of the crystallizer.

The invention relates to a saddle structure, in particular to a saddle structure of a large-volume low-temperature vacuum storage and transportation container. The invention aims at solving the technical problem that an existing saddle structure of a low-temperature vacuum storage and transportation container cannot meet the loading and transportation requirements of low-temperature media with the temperature being -253 DEG C or below. The saddle structure comprises a first protection pipe, a second protection pipe, a bottom sealing plate, a height adjusting unit and a reinforcing unit, wherein the upper end of the first protection pipe is fixedly connected with a through hole formed in the lower cylinder wall of an outer tank body of the low-temperature vacuum storage and transportation container; the lower end of the first protection pipe is arranged at the upper end of the second protection pipe in a sleeving mode and fixedly connected with the second protection pipe; the lower end of the second protection pipe is fixedly connected with the upper surface of the bottom sealing plate to form a closed cavity structure; the upper end of the height adjusting unit is fixedly connected with the lower surface of the bottom sealing plate; and a bottom plate of the height adjusting unit is fixedly connected with a bottom frame of a low-temperature vacuum storage and transportation container transport vehicle.

The invention discloses a vehicle tail gas purifying device. The device comprises a central electronic control unit ECU (1), a rotating speed sensor (3), a vehicle speed sensor (4), a water temperature sensor (6), and an engine waste gas recirculation EGR electric control system; the rotating speed sensor (3) is connected with an input end of the ECU (1) through a signal; the vehicle speed sensor (4) and the input end of the ECU (1) are connected through a signal; the water temperature sensor (6) and the input end of the ECU (1) are connected through a signal; the engine waste gas recirculation EGR electric control system comprises a bypass pipeline (9); a high-frequency electromagnetic valve (10) is arranged in the bypass pipe (9); and a control end of the high-frequency electromagnetic valve (10) is connected with an output end of the ECU (1) through a signal. The vehicle tail gas purifying device can reduce the NOx emission more effectively, and further widens the application range.

The invention relates to a connector, comprising a connector body, a base and a pin with elasticity. The base comprises a body part and a support part. The body part is detachably connected with the connector body, so an insertion channel of which one end is open is formed. The support part is set on the body part and is located in the insertion channel. The pin is mounted at one side of the bodypart with the support part. The pin is constructed to be pressed down or raised in response to external force. The support part is used for resisting against the pin in a press-down process of the pin, so the pin is supported. A registered jack of a telephone line is inserted into the insertion channel, non-slot positions at two sides of the registered jack of the telephone line press down the pin, when the pin is pressed down to resist against the support part, the pin is supported by the support part, and the pin cannot be pressed down again. When a user wrongly inserts the registered jack of the telephone line into the connector, the registered jack of the telephone line is not liable to press down the pin in the connector to deform and lose efficacy, and use of the connector is not influenced. The invention also relates to the base for the connector.

The invention discloses a self-adaptive bridge support which comprises an upper supporting piece used for supporting a bridge and a supporting base used for installing the upper supporting piece. Theupper surface of the supporting base is connected with a supporting bulb in spherical surface cooperation with the bottom face of the upper supporting piece. Multiple reset assemblies connected with the upper supporting piece and the supporting base and used for resetting the upper supporting piece and a limiting assembly used for limiting the rotation angle of the upper supporting piece are arranged around the supporting bulb on the upper surface of the supporting base. Through spherical surface cooperation, adjustment in any direction can be achieved through external force self-adaptive distribution, the rotation angle of the upper supporting piece rotating around the supporting bulb is limited through the limiting assembly, and an overturning phenomenon can be effectively prevented. Inthe structure, the supporting bulb is used for bearing a load, the stress of the reset assemblies and the limiting assembly in the normal state is greatly reduced, fatigue damage of parts and deformation and failure of the parts due to too large stress are effectively avoided, the service life of the reset assemblies and the limiting assembly is prolonged, and system stability and reliability areimproved.