40results about How to "Large supporting force" patented technology

The invention discloses a pulley-type inclination-preventing device for an attached lifting scaffold and a method for using, the inclination-preventing device comprises a vertical bar-shaped inclination-preventing rail with a longitudinal inner concave and an inclination-preventing component, the structure of the inclination-preventing component is that 2-6 typed wall bolts are penetrated through wall and fix a connection board which is clung on wall surface, two supporting stands which are horizontally extended outwards and respectively arranged on the inclination-preventing rail are fixed on the connection board, an inclination-preventing conformation box which only does up and down movements with the inclination-preventing rail is erected between the two supporting stands, the inclination-preventing conformation box is composed of a pulley which is inserted into the inner concave of the inclination-preventing rail and the inclination-preventing rail which are connected, and the pulley is fixed on the inclination-preventing conformation box which surrounds the inclination-preventing rail. The invention has the advantages of excellent inclination-preventing property, safety and reliability, convenient disassembly and low component cost and can be used repeatedly, and the method for using which is disclosed can realize better safety of the attached lifting scaffold and can satisfy safe operational requirements of the attached lifting scaffold.

A rotating shaft of a shutter louver is provided, which is inserted into a louver mounting hole and frame mounting hole, so as to connect the louver to the frame. The rotating shaft is formed by a shaft bushing and shaft, wherein a shaft hole is formed through the body of the shaft bushing, a flange is disposed on the body and a gripping portion is protruded from the body. The shaft is accommodated within the shaft hole, and a fin is protruded from the shaft tail. When the rotating shaft is inserted into the frame mounting hole, the gripping portion is used to bear against the inner side of the frame mounting hole and thereby applying a force to grip the rotating shaft, and cooperating with the operation of gripping the louver mounting hole by the fin, the louver is positioned on the frame quickly and firmly.

A radial permanent magnetic suspension bearing, comprising: a horizontal shaft (2), a support bearing (4), and a radial permanent magnet suspension bearing (3); the permanent magnetic suspension bearing (3) comprises a stator pull-push magnet (31) disposed on a stator casing (1) via a permeability magnetic substrate (322), and a rotor pull-push magnet (32) disposed on the horizontal shaft (2) correspondingly via an annular permeability magnetic substrate (322), having a radial gap and forming an axial pull-push magnetic circuit with the stator pull-push magnet (31); wherein the rotor pull-push magnet (32) consists of two or more annual permanent magnets axially and closely fitting, with magnetic poles alternately arranged in the axial direction; the stator pull-push magnet (31) consists of two or more annular permanent magnets axially and closely fitting, with magnetic poles alternately arranged in the axial direction, disposed over the horizontal panel where the axle center of the horizontal shaft (2) is located, and being symmetrical about the perpendicular bisection plane of the horizontal shaft. The bearing has a simple structure and greatly reduces energy consumption, without wear or bearing maintenance.

The invention relates to a pallet which comprises a plurality of C-shaped metal panels and metal side plates. The C-shaped metal panels are arrayed like a matrix; the metal side plates are arranged on two ends of the C-shaped metal panels; the upper ends of the metal side plates are provided with latch notches for the insertion of one end of each metal panel; the metal panels and the metal side plates are molded integrally respectively; and the adjacent metal panels and metal side plates are fixedly connected at the contact positions of the metal panels and the metal side plates. Because the metal panels and the metal side plates are metal plates molded integrally respectively, the pallet has a simple structure, higher strength and lower production cost. Because the upper ends of the C-shaped metal panels are rightly inserted into the latch notches of the metal side plates, the end part of the metal panels and the latch notches of the metal side plates have a plurality of contact surfaces, and the bearing capacity of the pallet is hereby improved. Therefore, the pallet disclosed by the invention has a simple structure, high bearing capacity and long service life, can be reused and recycled and is environmentally friendly.

The invention relates to an internal combustion engine (1) having a multi-joint crank drive (8), wherein the multi-joint crank drive (8) comprises a plurality of coupling members (9) rotatably mounted on a crankshaft (2) and a plurality of articulated connecting rods (14) rotatably mounted on an eccentric shaft (6), wherein each of the coupling members (9) is pivotably connected to a piston connecting rod (4) of a piston (3) of the internal combustion engine (1) and to one of the articulated connecting rods (14).; In order that the second-order mass forces can be better compensated without a considerable increase in the friction losses, the required packaging space, the weight of the multi-joint crank drive (8), or the bearing forces in the bearings of the crankshaft (2), the articulated connecting rods (14) are provided with additional masses (21) and have a center of mass that lies outside the longitudinal center plates (22) of the articulated connecting rods.

The invention relates to a fiber cable core structure for a steel wire rope, comprising a central strand and 4, 5, 6, 7 or 8 outer layer strands, wherein, the outer layer strands are tightly stuck to the surface of the central strand, are made by spiral spinning around the central strand and are evenly distributed on the surface of the central strand;and the central strand and the outer layer strands are both made by spiral spinning of a plurality of grass yarns or artificially synthesized fiber. The structure can improve the flexibility of the fiber cable core, increase inner oil content and bearing force for the steel wire rope strands and satisfy the requirement of the steel wire rope on the fiber cable core when the diameter of the fiber cable core exceeds 25 mm.

A reduction gear is provided. The reduction gear includes: a worm made of a metal; and a worm wheel having gear teeth engaged with the worm, wherein at least the gear teeth of the worm wheel are made of a synthetic resin containing reinforcing fibers, and wherein an engagement surface of the gear teeth is so processed that a containing ratio of the reinforcing fibers of a surface layer is lower than that of the reinforcing fiber of an inner portion. By improving initial acquaintanceship of the engagement surface of the teeth gear of the worm wheel, it is possible to increase a durability-allowable transmission tongue. In addition, by reducing a friction of the worm, it is possible to provide a reduction gear with the worm having a lengthened lifetime.

A mold structure (1) includes a fixed mold (4) and a movable mold (5) for burying, integrally with molding of a plastic molded article (26), a bus bar (3) in which a tuning-fork terminal (32) is provided on a main body circuit unit (31). When the fixed mold (4) and the movable mold (5) are joined together, the terminal base (40) of the tuning-fork terminal (32) is held between a terminal base receiving portion (13) of the fixed mold (4) and a terminal base abutting portion (17) of the movable mold (5) while the tuning-fork terminal (32) is projected outside a cavity which is formed in such a way that the mold main body portions of the fixed mold (4) and the movable mold (5) are joined each other and into the inside of which a resin is injected.

The invention relates to the technical field of building pipe materials, in particular to a reinforced seamless steel tube which comprises a tube body and a tube cavity. The tube cavity is arranged in the tube body, and a partition plate is arranged in the tube cavity. The cross partition plate is arranged in the tube cavity of the tube body so as to greatly improve the strength of the tube body. A cross point of the partition plate is arranged in the circle center of the tube body so as be balance in stress. The reinforced seamless steel tube is simple in structure, large in bearing capacity, not prone to be broken, strong in compressive resistance, wide in application range and capable of greatly improving using quality.

The invention discloses an air spring device driven by a linear motor. The air spring device comprises an air cylinder sleeve with one open end. The air cylinder sleeve is internally provided with a connecting rod which is in clearance fit with the air cylinder sleeve and made of a non-permeability magnetic material. One end of the connecting rod extends out of an opening of the air cylinder sleeve, the connecting rod is internally provided with a center through hole, and a magnetic force unit is sleeved with the center through hole. The magnetic force unit comprises magnets and magnetizers which are alternately arranged. The end, located in the air cylinder sleeve, of the connecting rod is fixedly connected with an arranged piston, the end, extending out of the air cylinder sleeve, of theconnecting rod is provided with a tail cap which is used for compressing the magnetic force unit, and the piston and the air cylinder sleeve are slidably matched. An iron core arranged outside the connecting rod in a sleeving mode is fixedly arranged in the air cylinder sleeve, an armature coil is arranged in the iron core, the iron core is in clearance fit with the connecting rod, and an air gapis formed between the iron core and the connecting rod. The air spring device driven by the linear motor adopts the integrated design idea and has the advantages of being simple and compact in structure, small in size, high in response speed, high in motion precision, small in friction, low in noise and the like.

The invention relates to a downhole-started self-locking casing centralizer, comprising a connecting part (1) and a connecting part (2) on both ends, a central supporting part being arranged between the connecting part (1) and the connecting part (2), and characterized in that the central supporting part comprises a hollow coupler, and at least three N-stage piston self-locking support devices extending by stages under pressure are evenly distributed along the circumference of the coupler, N≧2. The invention has the following advantages: 1. a threaded integral structure is adopted; 2. a downhole-started self-locking support structure is adopted; and 3. a circular arc support cap helps ensure large support force and reduce damage to borehole walls.

The invention discloses an adjusting mechanism for rotor centration by utilizing a piezoelectric crystal, comprising a bearing-rotor system installed in a bearing block; the bearing block is installed in a shell through a plurality of groups of piezoelectric execution units distributed along an axial direction of the bearing block; each group of piezoelectric execution units comprises a pluralityof piezoelectric crystal actuators distributed along the circumferential direction of the bearing block; each piezoelectric crystal actuator comprises an end cap, a heat-shrinkable fin and a piezoelectric crystal, a circular truncated cone head of the piezoelectric crystal is matched with a corresponding conical hole in the bearing block, and the other end of the piezoelectric crystal is providedwith the heat-shrinkable fin embedded into the end cap connected with the shell through screw threads; and the deformation of the piezoelectric crystal is realized through changing the current in thepiezoelectric crystal actuators by utilizing an inverse piezoelectric effect of the piezoelectric crystal so that he position of the bearing block is changed; and the rotor position is changed through the bearing-rotor system, so that the aim for rotor centration is achieved. The invention has the advantages of simplicity and rapidness in centration and high precision.

A machine tool and a feed saddle structure thereof are provided. The feed saddle structure includes: a fixed column having a first vertical side and a horizontal side adjacent to the first vertical side; a feed saddle having a second vertical side corresponding in position to the first vertical side of the fixed column, and a bottom portion being adjacent to the second vertical side and corresponding in position to the horizontal side of the fixed column; a first guide rail and a second guide rail disposed on the first vertical side and the horizontal side of the fixed column, respectively; and a first slider and a second slider disposed on the second vertical side and the bottom portion of the feed saddle, respectively, and engaged with the first guide rail and the second guide rail, respectively, thereby increasing the dynamic and static rigidity of the machine tool.

The invention provides a seal safety lock, which includes a main body and a seal mechanism, the main body includes a mounting seat and a seal seat, the center of the mounting seat is slidingly equipped with a push rod, and the upper end of the push rod is connected with the output end of the push-pull electromagnet; the seal mechanism , including a push-pull part, a blocking part, and an electromagnet, the side wall of the push rod is provided with an annular slot, and the mounting seat is provided with an arc-shaped guide part and a first elastic part; when the push-pull part is at the lower limit position, the The blocking part squeezes into the annular slot and restricts the push rod from moving up and down; the push-pull part and the blocking part are made of materials capable of attracting the magnet, and when the electromagnet is energized, it can attract the The push-pull part and the blocking part move upwards to disengage the blocking part from the annular slot, and at this time, the push rod can be driven by the push-pull electromagnet to move up and down.

The invention relates to a heading machine and a supporting shoe unit thereof. The supporting shoe unit of the heading machine comprises a saddle frame; two sides of the saddle frame are transversely and telescopically supported and assembled with supporting shoes through telescopic driving structures; the telescopic driving structure on each side comprises a stretching driving structure; each stretching driving structure comprises an inner side superconducting electromagnet and an outer side superconducting electromagnet; the inner side superconducting electromagnets are fixed to the saddle frame; the outer side superconducting electromagnets are fixed to the corresponding supporting shoes; and the inner side superconducting electromagnets and the outer side superconducting electromagnets can be used for being electrified to generate magnetic repulsive force so as to drive the supporting shoes on the corresponding sides to extend outwards. Compared with thrust provided by a supporting shoe oil cylinder in the prior art, magnetic repulsive force generated by electrifying the superconducting electromagnets is determined by the electrifying amount, the upper limit is very high, and large supporting acting force can be easily provided without designing the whole size to be very large.

An internal combustion engine has a multi-joint crank drive which includes a plurality of coupling members rotatably mounted on a crankshaft and a plurality of articulated connecting rods rotatably mounted on an eccentric shaft, wherein each of the coupling members is pivotably connected to a piston connecting rod of a piston of the internal combustion engine and to one of the articulated connecting rods. In order that the second-order mass forces can be better compensated without a considerable increase in the friction losses, the required packaging space, the weight of the multi-joint crank drive, or the bearing forces in the bearings of the crankshaft, the articulated connecting rods are provided with additional masses and have a center of mass that lies outside the longitudinal center planes of the articulated connecting rods.

The invention relates to a floating supporting oil cylinder. The floating supporting oil cylinder comprises a cylinder body, an ejection device and a supporting clamping device, wherein the ejection device comprises a base, an ejection piston, an ejection rod, a back spring and a supporting rod; the base is provided with a piston channel; the ejection piston is positioned in the piston channel; the ejection rod is fixed with the ejection piston; the back spring is sleeved on the ejection rod; the supporting rod is pushed by the ejection rod; the supporting clamping device comprises a supporting piston and an elastic body; the supporting piston is positioned in the cylinder body; the elastic body is sleeved between the supporting rod and the supporting piston; the inner surface of the supporting piston and the outer surface of the elastic body are respectively an inner conical surface and an outer conical surface which are matched with each other; and steel balls are arranged between the inner conical surface and the outer conical surface. The floating supporting oil cylinder is characterized in that a hollow cylindrical boss is arranged at the lower end of the supporting piston and extends in the piston channel of the base; and the upper end of the ejection rod is matched with the supporting rod after penetrating in the cylindrical boss. The supporting force can be obviously increased under the condition that the cylinder diameter and the pressure are not changed, and the purpose of small size and large supporting force under the condition of low pressure is realized.

The invention relates to a refrigerating module for a refrigeration and freezing device and the refrigeration and freezing device. The refrigerating module comprises an evaporator box assembly, a bottom supporting plate and a lifting mechanism. An air supply opening and an air return opening are formed in the top of the evaporator box assembly. The bottom supporting plate is used for bearing the evaporator box assembly. The lifting mechanism is provided with at least one lifting unit. Each lifting unit comprises a bolt and at least one nut. The head of each bolt is connected to the bottom supporting plate in an abutting manner, and the upper end of the rod portion of each bolt stretches into the evaporator box assembly. The nut located at the uppermost end of each lifting unit is connectedto the bottom of the evaporator box assembly in an abutting manner, and the at least one nut of each lifting unit is configured to operably move in the axial direction of the corresponding bolt so that the evaporator box assembly can be lifted and / or dropped through the nut at the uppermost end of each lifting unit. The refrigeration and freezing device comprises at least one storage module, a rack used for supporting the at least one storage module and a refrigerating module. The at least one storage module is arranged above the rack. The refrigerating module is arranged in the rack and located below the at least one storage module.

The invention discloses a penetrating assembled storage rack. The penetrating assembled storage rack comprises side plates and two-layer closed-loop integrated layer partition plates, wherein the twoopposite ends of the each layer partition plate are connected to the side plates. Each penetrating of each two-layer closed-loop integrated layer partition plate comprises double tongue plates which are arranged on the two opposite sides of the two-layer closed-loop integrated layer partition plate and a sheet tongue plate which is arranged between the two double tongue plates, the sheet tongue plates of each two-layer closed-loop integrated layer partition plate are connected with the side plates in a flanging buckled manner through corresponding penetrating holes of the side plates, or the sheet tongue plates and the double tongue plates are connected with the side plates in a flanging buckled manner through the corresponding penetrating holes of the side plates. The penetrating assembled storage rack is simple and reasonable in structure, firm and durable.

The invention relates to a refrigeration module used for a refrigerator and freezer and a refrigerator and freezer. The refrigerating module of the present invention includes: an evaporator box assembly with an air supply port and an air return port at the top; a bottom support plate for carrying the evaporator box assembly; and a lifting mechanism with at least one lifting unit. Each lifting unit includes: a bolt whose head abuts against the bottom support plate and whose upper end extends into the evaporator box assembly; and at least one nut, the uppermost nut abuts against the bottom of the evaporator box assembly , at least one nut is configured to operably move axially of the bolt to lift and / or lower the evaporator box assembly by the uppermost nut. The refrigerating and freezing device of the present invention comprises: at least one storage module; a frame for supporting the at least one storage module; and a refrigeration module. At least one storage module is arranged above the rack, and the refrigeration module is arranged inside the rack and below the at least one storage module.

The invention provides a cable collecting device capable of automatically arranging cables. The device comprises a rotary drive mechanism and a reel. The rotary drive mechanism drives the reel to rotate in order to collect the cables. The device further comprises a cable arranging wheel arranged on the cable-in side of the reel, the cable arranging wheel is driven by a sliding assembly to linearlymove in the direction parallel to the rotating axis of the reel, and guides the cables about to enter the reel in the moving process for cable arranging, and therefore the cables are evenly wound around the reel. The sliding assembly is arranged on a sliding guide rail, and moves along the sliding guide rail, the sliding assembly is connected with a thread sliding block through a connecting rod,the two ends of the connecting rod are fixedly connected with the sliding assembly and the thread sliding block, the thread sliding block is screwed to a thread transmission rod through a thread, andthe thread transmission rod is fixed to the center of the end face of the reel and can synchronously rotate along with the reel. The device is simple and compact in structure, the cable arranging wheel is driven to linearly move in a thread transmission manner, and therefore the purpose of precise cable arranging is achieved.

The invention relates to a fiber cable core structure for a steel wire rope, comprising a central strand and 4, 5, 6, 7 or 8 outer layer strands, wherein, the outer layer strands are tightly stuck to the surface of the central strand, are made by spiral spinning around the central strand and are evenly distributed on the surface of the central strand;and the central strand and the outer layer strands are both made by spiral spinning of a plurality of grass yarns or artificially synthesized fiber. The structure can improve the flexibility of the fiber cable core, increase inner oil content andbearing force for the steel wire rope strands and satisfy the requirement of the steel wire rope on the fiber cable core when the diameter of the fiber cable core exceeds 25 mm.

A reinforcement 14 having approximately a Z-section is installed aslant along the vehicle front side edge of a rear pillar 10 and is secured thereto 10, and the seat belt anchor is attached to the over-part of the reinforcement 14, while the door striker is installed in the lower part of the reinforcement 14, whose top is coupled with the upper part of a rear pillar reinforcement 13. To easily heighten the mounting rigidity of a seat belt anchor and a door striker in the vehicle body rear.

The rail vehicle (10) has drive unit (30) provided at two longitudinal ends of undercarriage (12). A hydraulic cylinder unit (40) is connected with central drive and undercarriage, so that hydraulic cylinder units are supported by the central drive in vertical direction. A hydraulic pump is provided in hydraulic cylinder units.

The invention discloses an electro-hydraulic integrated bidirectional locking anti-explosion hydraulic cylinder. The electro-hydraulic integrated bidirectional locking anti-explosion hydraulic cylinder is characterized in that four cavities are formed in a structure part and are a first push cavity, a second push cavity, a third safety cavity and a fourth unlocking cavity correspondingly; a direction valve is switched for locking and unlocking the hydraulic cylinder; the direction valve gains electricity, the hydraulic cylinder is unlocked, a high-pressure oil film is integrated on the fourthunlocking cavity among a cylinder barrel, a left piston and a right piston to form static pressure supporting, the direction valve loses electricity, the hydraulic cylinder is locked, the cylinder barrel and a locking sleeve form strong pressure to be tightly embraced together, meanwhile, hydraulic oil enters the third safety cavity, and hydraulic supporting is formed; and mechanical locking and hydraulic support exist at the same time, the hydraulic cylinder can be safer and more reliable, an unloading read head and a supporting read head can read the pressure of the fourth unlocking cavity and the third safety cavity at any time, the sub-health status of the hydraulic cylinder can be known, and maintenance and updating can be conducted in time.