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60results about How to "Controllable force" patented technology

Bulb steel production technology

InactiveCN101190442ASmall fluctuations in section sizeSmall fluctuations in the size of the arcRollsMetal rolling arrangementsIron productionCompression ratio
The invention discloses a ball flat iron production technique, comprising steps of billet, heating, symmetrical rolling, straightening and dissection. The invention is characterized in that the dissection process is carried out after the processes of symmetric rolling and straightening; hole shapes in all the passages of a rolling mill are constituted by two ball flat iron hole shapes which are symmetrically identical. By adopting the technique of symmetric rolling, the invention solves the problems that existing large and medium rolling mills can not produce small ball flat irons with symmetrical rolling and dissection technology. The invention has the advantages of the small size fluctuation of profiles when producing, particularly the small size fluctuation of width, thickness, ball filling and the lower arc of the ball flat iron, rollers subject to uniform forces, easy control in rolling process, greatly reducing the scraping, the rolling mark and the waves of the product by 50% to 70%, improving the quality of the product, enlarging the types of rolled products, leading large profiled bar rolling mill to produce small ball flat iron, enlarging the profile of the billet, large corresponding compression ratio, improving the comprehensive performance of the products, etc.
Owner:ANGANG STEEL CO LTD

Method for reducing sliding distance of airplane during landing and taking off

The invention provides a method for reducing sliding distance of an airplane during landing and taking off, which belongs to the technical field of aircraft carriers. The method comprises a conveying belt, a sub haulage cable, an anti-backing roller and wall and a haulage cable; and scheme is as follows: (1) the airplane is started and accelerated together with the conveying belt on the conveying belt, the conveying belt moves reversely, the pulling cable is separated from the airplane while the pull force of the pulling cable reaches 0.1-1000 N, and the airplane rushes out of the conveying belt to take off; and (2) after the airplane lands on or slides to the conveying belt reverse to the airplane operation direction, the airplane engine is stopped and the conveying belt is decelerated until parking, and then the airplane lands successfully. The method provided by the invention, which is a novel takeoff and landing mode, is superior to the traditional airplane takeoff and landing mode and especially suitable for carrier on the aircraft carrier to take off; the sliding distance of the airplane during taking off and landing can be reduced; the airplane can directly take off or land on the conveying belt under the circumstance that the airplane performance and pilot physical fitness permits; and the method also has the characteristics of low manufacturing cost, simplicity for manufacturing, less energy consumption and simplicity in operation.
Owner:邱婷婷 +2

Axial bolt type camshaft automatic positioning device and using method thereof

The invention relates to an axial bolt type camshaft automatic positioning device and a using method thereof. The axial bolt type camshaft automatic positioning device is composed of an end face positioning part, an auxiliary pre-positioning part and a base, for the end face positioning part, the end face of a workpiece is positioned by combining double tips and an edge cutting pin, by adopting end face plug pin type positioning, a positioning fixture is obviously simplified compared with a cylindrical surface plug pin type structure, for the auxiliary pre-positioning part, lower air cylindersdrive lower movable V-shaped blocks to move along guide columns, the jacking height of the lower movable V-shaped blocks is controlled through adjustable limiting screws, so that the axis position ofa camshaft is guaranteed, an upper movable V-shaped block is driven by an upper air cylinder to move downwards and makes contact with the outline of the cam peach tip, and circumferential auxiliary positioning of the camshaft is achieved. The whole device completes pre-positioning of the workpiece on a machine tool through the auxiliary positioning part, so that impact between the workpiece and the tips and the edge cutting pin during manual installation is avoided, then rapid installation of the workpiece on the end face tips and the edge cutting pin is guaranteed, the installation auxiliarytime is effectively saved, the labor intensity of workers is relieved, and the positioning quality and the production efficiency are improved.
Owner:ASIMCO CAMSHAFT YIZHENG

Push rod pressing device, positioning assembly and positioning device

The invention relates to a push rod pressing device, a positioning assembly and a positioning device. The push rod pressing device comprises a workbench movable restraining base and a restraining head, the restraining head is installed on the workbench movable restraining base, and the restraining direction of the restraining head and the installation direction of the workbench movable restraining base are arranged at an angle; the workbench movable restraining base comprises a restraining base main support, a screwing handle and a movable check block, an assembling through hole is formed in the restraining base main support, the movable check block can be embedded in the assembling through hole of the restraining base main support in the mode of rotating in the circumferential direction of the assembling through hole, and a handle sliding groove is formed in the movable check block in the radial direction; and the screwing handle is installed in the handle sliding groove and can slide along the handle sliding groove. The workbench movable restraining base and the restraining head which are arranged at an angle are adopted, the restraining head is fixed to the proper position of the workbench through the workbench movable restraining base, a pre-tightening force is provided for load equipment, and then the load equipment is restrained and fixed through a friction force generated by the restraining head and the load equipment.
Owner:TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI

Human lower limb performance enhancement outfit systems

The present invention comprises a user-friendly, soft and resilient, biomimetic (mimicking biological entities) lower limb support outfits that can be worn externally by people to improve and enhance lower limb, legs and knees performance in sports, daily dynamic activities and medical rehabilitation/physical therapy. More specifically, the present invention relates to an outfit, which allows a portion of the upper limb's quasi-static weight and dynamic weight due to impact forces to be excluded from being transmitted to the lower limb, legs, quadriceps and hamstrings muscles and knees by directly transmitting them to the ankles, footwear and/or the ground, through soft elastic columnar quasi-legs that are equipped with smart biomimetic materials such as shape memory materials and artificial muscles such as synthetic and/or ionic polymeric muscles and provide lower limb support function by buckling and bending in accordance with the dynamic maneuvering of the user. The said lower limb performance enhancing outfit is encapsulated by user-friendly fabric means for easy wear. The upper portion of the outfit can be in the form of a sports short worn by the user and encapsulating the buttocks support plates or supporting other outfits worn on the torso of the user or support other loads on the torso such as a backpack.
Owner:SHAHINPOOR MOHSEN

Magnetic type cardiopulmonary resuscitation instrument

The invention discloses a magnetic suction cardiopulmonary resuscitator, which comprises a housing, a housing fixing part, a negative pressure sucker, a permanent magnet, an electromagnet and a control part; Fixed with the body of the patient to be rescued; the electromagnet is fixedly connected in the housing, the permanent magnet is located under the electromagnet, and the negative pressure suction cup is connected under the permanent magnet; or the permanent magnet is fixedly connected in the housing, the electromagnet is located under the permanent magnet, and the negative pressure suction cup Connected under the electromagnet; the control part is installed on the housing and connected with the electromagnet, which can control the electromagnet to generate alternating magnetic poles; the negative pressure sucker is installed in the housing and can be driven by the alternating magnetic poles to move up and down in the housing. The present invention provides pressing and pulling forces for the entire cardiopulmonary resuscitation instrument through the principle of magnet homopolar repulsion and heteropolar attraction, and the force is controllable, avoiding manual operation, improving the automation of the instrument, and greatly improving the performance of cardiac arrest patients. The survival rate is suitable for popularization and application.
Owner:BEIJING GMRMED MEDICAL EQUIP CO LTD

Magnetic track lamp

The invention discloses a magnetic track lamp. The magnetic track lamp comprises a lamp holder, a lamp body and a control assembly, wherein the lamp holder is in sliding connection with a track; the lamp holder is fixedly equipped with first magnetic parts; the lamp body and the lamp holder can be connected in a relative swinging mode; the lamp body is fixedly equipped with second magnetic parts; the first magnetic parts or the second magnetic parts are electromagnetic structural parts capable of controlling magnetic induction intensity through current, and the others are electromagnetic structural parts or permanent magnets; the control assembly is connected with the electromagnetic structural parts for controlling current which passes through the electromagnetic structural parts; and the magnetic track lamp regulates stress between the lamp body and the lamp holder and changes an angle between the lamp body and the lamp holder in a mode that the first magnetic parts and the second magnetic parts attract with each other or exclude with each other. The magnetic track lamp is simple in structure, is low in fault rate and is convenient to regulate. At least one of the first magnetic parts and the second magnetic parts is the electromagnetic structural part, and magnetic induction strength of the electromagnetic structural parts can be controlled by controlling the size and the direction of current of the electromagnetic structural parts through the control assembly, so that stress between the lamp body and the lamp holder is easily controlled.
Owner:SHENZHEN SKYWORTH LIGHTING ELECTRIC

Preparation method of novel multilayer brazing super-hard abrasive tool

InactiveCN108161781AStable manufacturingSmall artificial influence factorsGrinding devicesCollocationFilling materials
The invention discloses a preparation method of a novel multilayer brazing super-hard abrasive tool, and belongs to the field of super-hard abrasive tool manufacturing. The preparation method comprises the step 1) of proportionally mixing diluted materials with brazing solders to form composite agents; the step 2) of pelletizing and packing super-hard abrasives, and bonding and fixing the super-hard abrasives with water-soluble binders; the step 3) of uniformly mixing the packed super-hard abrasive compounds with filling materials, the brazing solders and the water-soluble binders; the step 4)of putting the mixtures in a mould for pressure forming; and the step 5) of heating and brazing formed blanks; according to the method, the brazing strength of single abrasives is controlled indirectly by control of the size of a brazing area of the brazing super-hard abrasives, and the multilayer sustainable processing performance of multilayer brazing is achieved through the structure collocation of the filling materials; the life of the brazing super-hard abrasive tool is prolonged; the preparation technology is simple, and the quality is stable and easy to control; and the working procedures can be standardized, and applicable for industrial mass production.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Operating mechanism of minitype breaker

ActiveCN102426998AIncreased trip armSmall tripping forceProtective switch operating/release mechanismsEngineeringCircuit breaker
The invention relates to an operating mechanism of a minitype breaker. The operating mechanism includes a handle that can be rotatably installed in a housing. A U-shaped connecting rod is connected to the handle; the other end of the U-shaped connecting rod is movably arranged penetratedly into a sliding groove of a support lever. The support lever can be sleevedly installed on a first fixed shaft by rotating around the first fixed shaft and the first fixed shaft is fixed on the housing. A second fixed shaft is fixed on the support lever; a tension spring is connected on the second fixed shaft; and the tension spring is connected with a third fixed shaft that is fixed on the housing. A pin jump lever that is capable of rotating around the second fixed shaft is sleevedly installed on the second fixed shaft; one end of the pin jump lever is above the sliding groove; and the other end of the pin jump lever is in contact connection with one end of a latching lever. And the latching lever is rotatably sleevedly installed on the first fixed shaft and the other end of the latching lever is in contact connection with one end surface of the support lever. According to the invention, beneficial effects of the operating mechanism are as follows: the tripping arm force of the latching lever is increased; a tripping force can be effectively reduced; and the motion is stable.
Owner:SHANGHAI NOARK ELECTRIC

Drill-buried type prefabricated pipe pile for electric transmission line

InactiveCN110241813AReduce earthwork volumeLess foundation excavationBulkheads/pilesAcoustic transmission lineTransmission line
The invention relates to a drill-buried type prefabricated pipe pile for an electric transmission line. The drill-buried type prefabricated pipe pile comprises an internal flow-guiding component, a flow-guiding steel pipe, a prefabricated miniature pipe pile, a grouting head, a grouting head top plate, a grouting hole, a grouting steel pipe, a grouting head bottom plate, reinforcing ribs, an open hole, a top plate, a pore, bolt holes, an external positioning nesting component, four fork feet, angle steel and mortar, the internal flow-guiding component and the external positioning nesting component are connected through the grouted mortar, the internal flow-guiding component comprises the flow-guiding steel pipe, the prefabricated miniature pipe pile and the grouting head, the reinforcing ribs are welded into the grouting steel pipe, the open hole is formed in the grouting steel pipe, the top plate is welded to the top of the flow-guiding steel pipe and provided with the pore, the bolt holes are formed in the four corners of the top plate, and the four fork feet are welded to the outer wall of the external positioning nesting component through the angle steel at equal distances. The drill-buried type prefabricated pipe pile has the advantages of small environmental influence, high construction efficiency, reliable quality and low cost, and is suitable for being used and promoted.
Owner:STATE GRID CORP OF CHINA +1

Impact adjustable internal puller

The invention discloses an impact adjustable internal puller, which comprises a handle rod, an adjusting rod, an impact hammer and a clamping claw component, wherein the handle rod is constituted by a hollow circular tube; the front end of the handle rod is welded with a supporting frame, and the rear end of the handle rod is provided with a handle; the root part of the handle is welded with a fixed disc; the supporting frame consists of a left lug seat and a right lug seat; the impact hammer is sleeved on a polished rod part of the handle rod; the clamping claw component consists of a left pulling claw, a right pulling claw, and a tension slide block and a tension spring which are arranged between the left pulling claw and the right pulling claw; the middle part of the tension slide block is provided with a threaded hole; the adjusting rod is constituted by an iron stick and is penetrated in the handle rod; the front end of the adjusting rod is provided with a threaded head, and the rear end of the adjusting rod is provided with a hexagon nut; the threaded head at the front end of the adjusting rod is screwed with the threaded hole on the middle part of the tension slide block; and the hexagon nut at the rear end of the adjusting rod is pressed against an orifice at the rear end of the handle rod. The product is smooth to operate, convenient and easy to use, fast to disassemble, time-saving and labor-saving and is suitable for disassembling bearings of various specifications.
Owner:北京市环雅清扫保洁服务中心

Polished rod sealing device special for pumping unit

ActiveCN105971545AImprove sealingGood tuning effectSealing/packingFiberThrust bearing
The invention relates to a polished rod sealing device special for a pumping unit and mainly solves the existing problems that force is not easy to command, great effort is needed and the adjustable range of a deviation-adjusting device is narrow when carbon fiber packing of a well mouth of a pumping unit is tightened. The polished rod sealing device special for the pumping unit is characterized in that a well sealing rubber gasket (14) is arranged on the inside of the upper part of a lower connector (18), a well sealing pressing cap (12) is arranged at the upper end of the well sealing rubber gasket (14), a well sealing gland (13) is connected to the outside of the upper part of the lower connector (18), and a deviation-adjusting base (10) is arranged on the inside of the upper part of the well sealing gland (13) and is in contact with an above sealing cylinder (7) through a spherical surface; a spiral sealing part (6) is arranged inside the sealing cylinder (7), a pressing block (5), a spring (3) and a thrust bearing (2) are arranged at the upper part of the spiral sealing part (6) sequentially, and the upper part of the thrust bearing (2) is fixed by a pressing cap (1). According to the polished rod sealing device special for the pumping unit, the effort is saved, the force is controllable, the adjustable range of the deviation-adjusting device is wide, and the deviation-adjusting effect is good when the carbon fiber packing is tightened.
Owner:DAQING YINNIMEILI MACHINERY EQUIP MFG

Auxiliary device used for removal of steering gear rotor of ship

The invention discloses an auxiliary device used for removal of a steering gear rotor of a ship, and belongs to the technical field of ship building. The device comprises a fixed plate and a hydrauliccylinder; the fixed plate is circular; four vertical through holes are formed in the fixed plate; the four vertical through holes are symmetrically arranged about the center of the fixed plate; a double-screw bolt is arranged in each of the four vertical through holes in a penetrating manner; the upper end of each double-screw bolt extends out to the upper side of the fixed plate; a positioning nut is fastened to the upper end of each double-screw bolt; the lower end of each double-screw bolt extends out to the lower side of the fixed plate; the upper surface of the fixed plate is provided with four first strengthening tendon plates; a lifting hole is formed in each first strengthening tendon plate; the hydraulic cylinder is vertically arranged on the lower surface of the fixed plate; andthe center line of the hydraulic cylinder penetrates through the center of the fixed plate. According to the auxiliary device disclosed by the invention, when the steering gear rotor is removed, hydraulic drive is adopted to replace a method that the steering gear rotor is knocked by using a heavy object traditionally, so that the direction of an applied force is stable, the magnitude of the applied force is controllable, and the phenomenon that the steering gear rotor and a rudderstock are stuck due to improper removal can be effectively avoided.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Disc-shaped dentate self-resetting device and application thereof

The invention discloses a disc-shaped dentate self-resetting device and an application thereof. The disc-shaped dentate self-resetting device comprises a disc-shaped upper dentate plate, a disc-shapedmiddle dentate plate and a disc-shaped lower dentate plate, wherein occluding teeth are formed on two sides of the middle dentate plate and formed on the inner surfaces of the upper dentate plate andthe lower dentate plate in a corresponding manner; the upper dentate plate, the middle dentate plate and the lower dentate plate are penetrated through by a pre-stressed threaded pipe respectively and are engaged and superimposed together by the connection by nuts cushioned with belleville springs; the upper dentate plate and the lower dentate plate are connected to a building column through extension ends and connecting steel plates, or by connecting to a cantilever truss; and the middle dentate plate is connected to a building girder or the building column through a fixed end plate which sleeves the middle dentate plate. Under the actions of the restoring forces of the belleville springs, the disc-shaped dentate device which deforms after an earthquake is restored to the original state,so that a building can restore quickly after the earthquake; dual breakthroughs are achieved in terms of building appearance maintenance and earthquake resistance; and the device has the advantages of compact design, controllable acting force, wide application range, easy operation, small workload, high reliability, etc.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Carbon fiber prepreg friction coefficient measuring device and using method thereof

The invention provides a carbon fiber prepreg friction coefficient measuring device which comprises a motor, a lead screw sliding table, a heat preservation cover, a pressurizing device, a sliding block, a connecting rod, a clamp and a workbench, wherein the motor, the lead screw sliding table and the heat preservation cover are installed on the workbench; a heating device is fixed to the portion,in the heat preservation cover, of the workbench; a clamp is installed on the heating device; a second sample is fixed to the top of the clamp, a first sample is fixed to the lower surface of the sliding block through a first pressing plate, and the first sample is placed on the second sample; the pressurizing device is fixed on the sliding block and is provided with a pressure sensor; one end ofthe connecting rod is fixedly connected with the sliding block, and the other end extends out of the heat preservation cover and is fixedly connected with the force measuring sensor; the force measuring sensor is fixed on a sliding table of the lead screw sliding table; and the motor drives the sliding table of the lead screw sliding table to move. The device is easy to operate and small in occupied area, and the friction coefficient between the carbon fiber prepregs with different temperatures, different pressures, different relative movement speeds and different orientations can be measured.
Owner:DONGHUA UNIV

Electromagnetic suspension energy recovery type supporting braking system

The invention discloses an electromagnetic suspension energy recovery type supporting braking system which comprises an outer sleeve, an inner sleeve, a silicon steel ring and an iron core, wherein the inner sleeve, the silicon steel ring and the iron core are arranged in the outer sleeve. One end of the inner sleeve is connected with an axial magnetic block through an axial sleeve disk, and the other end is connected with the silicon steel ring. The silicon steel ring is connected with the iron core. The iron core is internally provided with magnetic steel insertion blocks, steel insertion sheets, steel insertion sheets, magnetic blocks and coils, wherein the magnetic steel insertion blocks, the steel insertion sheets, the magnetic blocks and the coils are uniformly and alternatively arranged. The other end of the iron core is connected with a braking sleeve and a braking electromagnet. The electromagnetic suspension energy recovery type supporting braking system is beneficial in that a no-friction support can be supplied; through motor performance, an auxiliary bearing can be abandoned in power-off operation; braking and energy recovery are integrated; size is optimized for realizing a better spatial structure; furthermore better energy saving effect is realized; controllable force bearing magnitude and high versatility are realized; and the electromagnetic suspension energy recovery type supporting braking system can be used in an adverse environment.
Owner:GUILIN UNIV OF AEROSPACE TECH
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