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30results about How to "Preload" patented technology

High-performance bonded rare earth magnetostrictive material and preparation method thereof

The invention discloses a high-performance bonded rare earth magnetostrictive material and a preparation method thereof. The high-performance bonded rare earth magnetostrictive material comprises the following raw materials, in parts by weight:3-5 parts of metal terbium, 5-10 parts of metal dysprosium, 15-20 parts of metal iron, 10-15 parts of binders, 30-40 parts of acetone solution, 10-15 parts of curing agents and 10-15 parts of coupling agents. The method is characterized by blending the metal terbium, the metal dysprosium and the metal iron according to a ratio of 3:7:19 in molar mass, and placing the mixture in a vacuum non-consumable arc furnace for argon-filling melting to obtain an alloy ingot; then, under the protection of gasoline, smashing the alloy ingot through an ingot disc to obtain powder particles having required particle sizes; then, mixing the obtained powder particles with the binders, then, placing the mixture into the acetone solution, stirring the solution and meanwhile, heating the solution with an infrared lamp until the materials are uniformly blended and acetone is volatilized completely; after cooling, adding the curing agents, and after carrying out full stirring and uniform blending, keeping the obtained mixture in a certain intensity of magnetic field for a period of time; and then, carrying out compression moulding through a hydraulic press, and finally, carrying out curing processing. The tensile strength of the obtained material is enhanced, and the production cost is low.
Owner:上海归经智能科技有限公司

Contactor

The invention discloses a contactor. The contactor comprises a shell, a contact terminal support, a coil framework, a base and a cover cap, wherein the contact terminal support is movably mounted inside the shell; the coil framework is placed in the base, and is inserted into the shell; the shell is mounted on the base; the cover cap that is provided with the IP2X protection level and is integrally formed is mounted on the shell. The contactor is simple in structure, relatively high in protection level, firm and stable in wiring, and suitable for automatic assembly.
Owner:XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO LTD

Convenient-to-disassemble hoop of pier stud for bent cap molding

The invention discloses a convenient-to-disassemble hoop of a pier stud for bent cap molding, wherein the hoop comprises a first hoop and a second hoop which are mounted on the pier stud for bent cap molding; under the arrangement of a mounting seat, a spring and a locking bolt, when the hoop is assembled, a certain pre-tightening force exists between the first hoop and the second hoop, the coaxiality of a third threaded hole and a first threaded hole is higher, and rapid locking of the locking bolt is facilitated; when the hoop is dismounted, the ejection separation force of the hoop is gradually reduced through multiple times of buffering, the rebound force of the hoop is reduced step by step, and the situation that the hoop rebounds at a high speed to impact a constructor or a moving platform due to overlarge elasticity is avoided; and particularly, when the last locking bolt is dismounted, the spring can also play a certain pre-tightening force, so that the hoop cannot be separated from the pier stud instantly, the hoop is prevented from sliding down instantly, the hoop is convenient for the constructor to assemble and disassemble, and a plurality of springs correspond to the ejection separation force of the hoop, and thus the self deformation of the hoop is reduced, and the hoop is easier to repair and reuse after being detached.
Owner:中交一公局第七工程有限公司

High temperature and high pressure gate valve

The invention provides a high-temperature and high-pressure sluice valve which comprises a valve body, a valve seat, a wedge disc, a valve deck and a valve rod. The valve rod is rotationally arranged on the valve deck, and the lower portion of the valve rod is in threaded connection with the wedge disc. A first sealing assembly in sealing connection with the valve rod is arranged in a lower opening of the valve deck, and a second sealing assembly in sealing connection with the valve rod is arranged in an upper opening of the valve deck. The valve rod is rotationally supported in the valve deck through a bearing arranged above the second sealing assembly. According to the high-temperature and high-pressure sluice valve, the structure of the double sealing assemblies is adopted; by means of buffering of the first sealing assembly, the impact of working media on the second sealing assembly is greatly lowered, and therefore the sealing function can be effectively achieved through the second sealing assembly; and furthermore, the service life of the second sealing assembly is prolonged, and the working pressure value of the valve is increased.
Owner:NEWAY OIL EQUIP SUZHOU

Corrugated board forming and pressing auxiliary device

The invention discloses a corrugated board forming and pressing auxiliary device which comprises a paperboard cutting machine body and a conveyor, and a concave road section is arranged on a conveying channel of the conveyor; a buffer plate is rotationally arranged in the concave road section of the conveyor; when the conveyor conveys the overlapped corrugated boards, the reciprocating mechanism is driven by the driving mechanism so that the buffer plate can form an angle of 20-30 degrees based on the plane of the conveying channel. According to the corrugated board forming and pressing auxiliary device provided by the invention, the buffer plate ascends to be in contact with a corrugated board conveyed to a conveyor from a cutting machine body, so that the corrugated board is pre-loaded, and the corrugated board does not directly fall on a conveying belt of the conveyor under the action of inertia; the height of one end of the paperboard falling onto the plane of the conveying belt is reduced, then the jolting amplitude caused by direct contact of the paperboard and the conveying belt is reduced, and separation of the contact ends of the two overlapped corrugated paperboards under the jolting condition is weakened and even avoided.
Owner:CHUZHOU CIGARETTE MATERIALS FACTORY

Novel electrode structure for resistance furnace

The invention provides a novel electrode structure for a resistance furnace. The novel electrode structure for the resistance furnace comprises an electrode base and an electrode arranged in a center hole of the electrode base. An O-shaped ring used for sealing is arranged outside the electrode. A screwing nut is arranged at the bottom of the electrode. Insulating material is arranged between the electrode and the electrode base. The electrode structure can meet requirements for high-temperature and high-pressure sealing in equipment, can be adjusted in size and can adapt to different current and voltage requirements. The electrode structure is compact in structure and convenient to manufacture and install, well solves the problems of electrode structure sealing, insulating, cost and many other respects, and is very suitable for continuous high temperature environments of the resistance furnace.
Owner:上海森永工程设备股份有限公司

Soft package battery and manufacturing method thereof

The invention relates to the technical field of soft package batteries, and discloses a soft package battery and a manufacturing method thereof, and the soft package battery comprises a battery cell body, an aluminum plastic film and a reinforcing layer. A punching pit for accommodating the battery cell body is formed in the aluminum-plastic film, and the battery cell body is packaged in the punching pit in the aluminum-plastic film; the reinforcing layer is clamped between the battery cell body and the aluminum-plastic film, the reinforcing layer is located in the punching pit, and the thickness of the reinforcing layer is smaller than the depth of the punching pit. The battery cell body of the soft package battery is packaged in the punching pit of the aluminum-plastic film, and the enhancement layer with the thickness smaller than the depth of the punching pit is additionally arranged in the punching pit of the aluminum-plastic film, so that the mechanical strength of the soft package battery is improved, and the soft package battery is not easy to deform and higher in safety; moreover, after the soft package battery is packaged, the gap between the battery cell body and the aluminum-plastic film is filled with the reinforcing layer, so that the positive plate, the diaphragm and the negative plate of the battery cell body are pre-tightened, the positive plate, the diaphragmand the negative plate are attached more tightly, and the electrochemical performance of the soft package battery is further improved.
Owner:HUBEI JINQUAN NEW MATERIALS CO LTD

Aluminum template for building

The invention aims to provide an aluminum template for a building. The aluminum template comprises bottom plates, wherein a frame is arranged on one side of each bottom plate; each frame is a closed frame body formed by enclosing four edge strips; a fastener is clamped between every two adjacent bottom plates; a fastening groove is formed in one side of each fastener; the frames of the two adjacent bottom plates can be clamped into the fastening grooves; pin holes are formed in the edge strips; through holes corresponding to the pin holes are formed in the fasteners; pin rods are arranged in the pin holes in a penetrating manner; the two ends of each pin rod extend out of the through holes of the corresponding fastener; external threads are formed in the extending ends of the pin rods; nuts are in threaded connection with the external threads of the pin rods; at least two positioning blocks are uniformly distributed on the two inner groove walls of the fastening groove of each fastenerin the length direction; positioning grooves matched with the positioning blocks are formed in the edge strips; the bottom plates are square; the fasteners are U-shaped channel steel; the fastening grooves are formed in the inner grooves of the U-shaped channel steel.
Owner:蒙城县欣瑞特建材有限公司

Novel trolley driving steel wire rope balancing mode and device of bucket-wheel even mixing reclaimer

ActiveCN109607233AQuick balance force conditionEnsure safetyLoading/unloadingGear wheelCoupling
The invention relates to a novel trolley driving steel wire rope balancing mode and device of a bucket-wheel even mixing reclaimer. The novel trolley driving steel wire rope balancing device comprisesa driving system, steel wire ropes, redirection supporting wheels, a balancing reel I and a balancing reel II; the driving system is constituted by a motor, a coupling, a brake, a speed reducer, a gear pair and a driving reel, and is fixed to one end of a bridge crossbeam; the redirection supporting wheels are fixed to the bridge crossbeam in a dispersed mode; a trolley travels along the bridge crossbeam, and the balancing reel I and the balancing reel II are fixed to the two ends of the trolley; and the rear end of the trolley passes through the balancing reel I through the corresponding steel wire ropes to be connected with the driving reel and then bypasses the other end of the bridge crossbeam through the redirection supporting wheels to be connected with the balancing reel II at thefront end of the trolley. The balance stress situation of the trolley driving steel wire ropes can be reasonably improved, thus the trolley can be not subjected to eccentric loading, operating is stable, safety and stability of the device are improved, the maintenance cost is lowered, and the life of the device is prolonged.
Owner:HUNAN CHANGZHONG MACHINERY

Pre-molding seat structure and injection molding machine with same

InactiveCN112356387AFix work quality issuesGuaranteed locking and anti-loosening functionLocknutStructural engineering
The invention provides a pre-molding seat structure and an injection molding machine with the pre-molding seat structure. The pre-molding seat structure comprises a pre-molding seat which is used forbeing arranged on a transmission shaft in a sleeving manner, a first bearing arranged on the transmission shaft in a sleeving manner and located between the pre-molding seat and the transmission shaft, a locking piece arranged on one side of the first bearing and adjustably arranged in the axial position of the transmission shaft so as to axially lock the first bearing, and an isolation pad arranged on the inner side of the inner ring of the first bearing, wherein the isolation pad is fixedly arranged relative to the transmission shaft, so that after the locking piece pushes the inner ring ofthe first bearing by a preset distance in the axial direction of the transmission shaft, part of pressure of the locking piece is borne through the isolation pad. According to the technical scheme, the problem that in the prior art, the locking torque of a locking nut in a pre-molding seat structure is not easy to control, and consequently the working quality of a bearing is affected is solved.
Owner:ZHUHAI GREE INTELLIGENT EQUIP CO LTD +1

A circuit protection structure of a power management chip and its working method

The invention relates to the technical field of circuits, in particular to a circuit protection structure of a power management chip and a working method thereof, including a circuit board, a push switch body mounted on the circuit board, and a mounting device for easy assembly provided on the circuit board The circuit board is provided with a rebound component that assists the rebound of the push switch body, the circuit board is provided with a heat dissipation component that dissipates heat from the circuit board, and the heat dissipation component is provided with a preload for the mounting component. The purpose of the present invention is to provide a circuit protection structure for a power management chip, which can flexibly adjust the angle of the circuit board, avoid the circuit board from being unable to be assembled with the casing due to the angle of the circuit board, and at the same time can help the push switch body. Rebound after pressing, avoid pressing the switch body for a long time, and the rebound performance will deteriorate and cannot fully rebound. In addition, the circuit board can be dissipated to avoid a large amount of heat generated by the circuit board, which will affect the normal operation of the circuit board.
Owner:HENAN XINRUI ELECTRONICS TECH

Pre-tightening type starter motor

InactiveCN104167839AKeep from loosening each otherImproves stability and connection firmnessMagnetic circuit stationary partsStatorEngineering
The invention relates to the starter technology field, and especially relates to a pre-tightening type starter motor. The pre-tightening type starter motor comprises a stator, a rotor, an end cover and a shell; the stator is placed in the shell, the rotor is placed in the stator, and the end cover is connected on the shell; the stator is equipped with a pin shaft, and the shell is equipped with a shaft hole. The pin shaft and the shaft hole are separately arranged on the stator and shell in a one-to-one corresponding manner, and the stator is connected with the shell by inserting the pin shaft in the shaft hole. A spring sleeves the pin shaft and is clamped between the stator and the shell, the pin shaft is inserted in the shaft hole, and therefore a connecting and fixing function can be fulfilled. The spring enables the stator and the shell to be pre-tightened, so that the stator and the shell can be prevented from mutual loosening, and stability and connection firmness are improved; accordingly, the performance and the work efficiency of a starter are guaranteed, and the service life of the starter is prolonged.
Owner:CHANGZHOU CHANGHAO MACHINERY

Connecting mechanism and mounting method for connecting closestool cover plate and closestool base

The invention discloses a connecting mechanism and a mounting method for connecting a closestool cover plate and a closestool base. The connecting mechanism comprises a supporting base and a bolt, a protruding edge is arranged on the top of the bolt, a supporting shaft is arranged on the top surface of the supporting base, a receding hole is concavely formed in the top surface of the supporting base, and a limiting column is arranged on the top surface of the supporting base. The connecting mechanism further comprises a movable piece and an adjusting sleeve, internal threads are arranged on the inner circumferential surface of the adjusting sleeve, external threads are arranged on the outer circumferential surface of the movable piece, the external threads and the internal threads are connected in a screwed mode, a penetrating hole, a receding hole and a locking hole are formed in the movable piece, the supporting shaft penetrates through the penetrating hole, and the limiting column is inserted into the limiting hole. The bolt penetrates through the locking hole and the receding hole to be connected with the closestool base so as to enable the supporting base to rotate in the circumferential direction, next, the adjusting sleeve is rotated to make the movable piece move upward to be pressed against the protruding edge, and thus the supporting base can be stopped from rotating in the circumferential direction. The movable piece is made to be pressed against the bolt by rotating the adjusting sleeve, the pre-tightening function is played, and the mounting operation can be carried out conveniently and fast.
Owner:OCEANWELL XIAMEN IND CO LTD

Secondary sampling alligator clip for lightning arrester live-line test

The invention relates to a lightning arrester live test secondary sampling alligator clip, and belongs to the technical field of detection equipment. The clamp comprises a main clamp and an auxiliaryclamp; the main clamp is rotatably connected with the auxiliary clamp, a torsional spring is arranged at the joint of the main clamp and the auxiliary clamp, the torsional spring provides an elastic force to enable the front end of the main clamp and the front end of the auxiliary clamp to be clamped, a connector is arranged at the tail end of the auxiliary clamp, and the main clamp comprises a clamp body and a chuck hinged to the front end of the clamp body; the clamp body is rotatingly connected with the auxiliary clamp; a locking device is arranged between the chuck and the clamp body, anda probe device is arranged on the auxiliary clamp. The alligator clip solves the problems of infirm fixation and the like of a sampling alligator clip in the prior art.
Owner:STATE GRID FUJIAN ELECTRIC POWER CO LTD +2

Inward-opening type self-tightening quick-opening manhole device and system

The invention provides an inward-opening type self-tightening quick-opening manhole device and system. The device comprises a connecting pipe, an outer cover, an inner plate, a sealing gasket, a rocker arm assembly, a stud and a nut. The inner plate and the outer cover are located on the inner side and the outer side of the connecting pipe correspondingly, and the sealing gasket located between the connecting pipe and the inner plate is pressed through the stud and the nut. The inner side of the outer cover is connected with a supporting plate. The connecting pipe is connected with a container, and a first handle is welded on the outer wall. The outer side of the manhole inner plate is connected with a second handle and a guide plate, and the inner side is connected with the rocker arm assembly. The rocker arm assembly comprises a connecting plate, rotating sleeves, a positioning assembly, a rocker arm, a fixed plate and a reinforcing plate and is located on the inner side of the container. The connecting plate is connected with the inner plate, the two ends of the rocker arm are connected with the rotating sleeves, and a cylindrical shaft penetrates the connecting plate and the rotating sleeves to connect the rocker arm with the inner plate and is positioned through the positioning assembly. The fixed plate is connected with the wall of the container, stability is enhanced through the reinforcing plate, and the fixed plate and the rotating sleeves are connected through the cylindrical shaft. According to the device, self-tightening sealing can be realized under internal pressure.
Owner:BEIJING UNIV OF CHEM TECH

Luminaire with limit pre-pressing structure

The invention relates to a luminaire with a limit pre-pressing structure, comprising a luminaire body, a fixed screw, an elastic anti-vibration pad and a stop collar; wherein the fixed screw is connected with the luminaire body and penetrates through the elastic anti-vibration pad; the stop collar is provided with a screwed hole matched with the fixed screw and a stop end face located at the tail end of the screwed hole; the stop collar is sleeved on the fixed screw and enables the elastic anti-vibration pad to be equipped with pre-pressing deformation; when pre-pressing deflection of the elastic anti-vibration pad reaches the preset value, the end face of the fixed screw is pressed against the stop end face. The luminaire of the invention is provided with a limit pre-pressing structure, so that when the luminaire is installed, appropriate compression deformation of the elastic anti-vibration pad can be ensured; meanwhile, pre-pressing can be carried out on the stop collar to prevent the stop collar from loosening in the process of use.
Owner:OCEANS KING LIGHTING SCI&TECH CO LTD +1

Elevator steel belt damage dynamic quantitative evaluation device and method

The invention discloses an elevator steel belt damage dynamic quantitative evaluation device and method, the device comprises a guide wheel assembly, a guide wheel keeps moving synchronously with a steel belt, and the position of a detection device is kept unchanged; the machine vision damage detection module is used for quickly acquiring a steel strip surface picture; the eddy current thermal imaging detection module comprises an induction heating coil surrounding the steel belt, two front infrared thermal imagers arranged at the front end of the induction heating coil and two rear infrared thermal imagers arranged at the rear end of the induction heating coil, the front infrared thermal imagers shoot the unheated steel belt, and the rear infrared thermal imagers shoot the unheated steel belt; the rear infrared thermal imager is used for shooting the heated steel belt; the position detection module is used for detecting the movement position information of the steel belt; and the alarm module is used for graded alarm. According to the dynamic detection device and the quantitative evaluation method for the elevator steel belt damage, dynamic damage detection and quantitative evaluation of the damage degree can be carried out on a polyurethane coating layer on the surface of the steel belt and a steel wire rope in the steel belt, and the elevator health condition is monitored.
Owner:JIANGSU MONTMERY ELEVATOR +1

Pre-processing equipment for peanut oil preparation

The invention relates to pre-processing equipment for peanut oil preparation. The equipment comprises a feeding mechanism, a shelling mechanism and a separating mechanism. The feeding mechanism comprises a discharging barrel disposed on a rack, a control assembly disposed at the output end of the discharging barrel, a pre-pressing plate disposed in the discharging barrel, and a driving assembly disposed below the discharging barrel; the shelling mechanism comprises a transmission assembly, a first guiding assembly and a pressing assembly, the transmission assembly comprises a plurality of setsof clamping assemblies arranged in the circumferential direction of the transmission assembly in an array mode, and the first guiding assembly drives the clamping assemblies in the discharging barrelto be disengaged from the interior of the discharging barrel into the driving assembly; and the separating mechanism comprises a screening assembly, a second guiding assembly and a pressurizing assembly which is communicated with the screening assembly and is in synchronous transmission with the driving assembly. The technical problems that during material receiving work, peanut accumulation andblockage can be caused at the peanut discharging opening, then the device used for breaking hulls moves in an idle stroke, continuous hull breaking output of peanuts cannot be guaranteed, and the workefficiency is low are solved.
Owner:袁明杰

Efficient heat collection intelligent solar water heater

The invention provides an efficient heat collection intelligent solar water heater, belonging to the technical field of machinery. The problem of poor stability in the prior art is solved in the invention. The efficient heat collection intelligent solar water heater comprises a solar heat collector and a water tank, wherein the solar heat collector is used for being installed outdoors; the interior of the water tank is a cavity; an inlet and an outlet which are communicated with the inner cavity of the water tank are formed in the water tank; the solar heat collector is connected with the water tank; a heating part of the solar heat collector is embedded in the water tank; and a flow guide mechanism used for guiding water in the water tank into the heating part is arranged in the water tank. The efficient heat collection intelligent solar water heater is high in stability.
Owner:ZHEJIANG YAUNN NEW ENERGY CO LTD

An assembly and positioning mechanism of a vacuum cleaner for a bed

The invention provides an assembly and positioning mechanism of a vacuum cleaner for a bed. The vacuum cleaner for a bed includes a base, an upper cover and a driving motor. The outer cover of the driving motor is provided with a motor cover, and the base, the motor cover and the upper cover are detachably connected and fixed; The positioning mechanism includes a shock-absorbing component arranged at the junction of the motor cover, the base, and the upper cover, and a positioning rod arranged on the opposite side of the base and the upper cover. The part passes through the connecting edge and is inserted into another positioning rod for limiting, and the shock-absorbing component is compressed between the two positioning rods arranged oppositely. By setting the shock-absorbing components at the connection to support the motor cover, the fixed part is in the form of a soft connection, which reduces the vibration of the driving motor during operation, effectively reduces the noise during use, and brings a good user experience. By setting the positioning rod to be used in conjunction with the shock-absorbing component, the bed vacuum cleaner can be quickly assembled in place, and the positioning accuracy and installation efficiency are improved.
Owner:KINGCLEAN ELECTRIC GREEN TECH SUZHOU
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