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36results about How to "Uniform axial force" patented technology

Device for tensile test of high temperature oxidizable metal material

The invention discloses a device for tensile test of a high temperature oxidizable metal material, comprising: a vacuum chamber, a vacuum chamber door, a vacuum system, a temperature control unit, anupper beam loading rod, an upper load transfer frame, a lower beam fixing rod, a lower load transfer frame, an upper ball hinged support, a lower ball hinged support, an upper clamp and a lower clamp;the vacuum chamber door is provided with a transparent observation window and is hinged to the vacuum chamber; the top of the vacuum chamber is a detachable cover; the vacuum system communicates withthe vacuum chamber; the temperature control unit is used for heating a tensile specimen and measuring the temperature of the tensile specimen; and the upper beam loading rod, the upper load transferframe, the lower beam fixing rod, the lower load transfer frame, the upper ball hinged support, the lower ball hinged support, the upper clamp and the lower clamp are disposed inside the vacuum chamber. The invention realizes the automatic centering of the sample through the synergistic relationship of the "circular collimation track-upper ball hinged support and lower ball hinged support-upper clamp and the lower clamp" to ensure that the axial force is uniform, Ensure accurate, reliable results and good reproducibility.
Owner:MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS

Steel truss support capable of windowing and steel truss barrel structure including same

The invention belongs to a steel truss support capable of windowing and a steel truss barrel structure including the same. A node plate (7) is connected with a framed beam (5) and a frame column (6), two ends of a long inclined support (2) are respectively connected with a support rod (8), and the support rod (8) is connected with an end plate (9) and is respectively connected with the framed beam (5) and the frame column (6). A horizontal support (3) is connected with a vertical support (4), the connecting position between the horizontal support (3) and the vertical support (4) is connected with the long inclined support (2), and a short inclined support (1) is respectively connected with the node plate (7) and the long inclined support (2). Connectors of the short inclined support (1), the long inclined support (2), the horizontal support (3), the vertical support (4), the support rod (8) and the end plate (9) are prefabricated by a factory. The steel truss support improves the bearing capacity of the structure by increasing width and thickness of supporting flanges, a window can be arranged at a position where the support is arranged, and the economic benefit and the applicability are improved while steeling using amount is saved.
Owner:江苏瑞成建筑科技有限公司

Sealing device for pipe joint

The invention discloses a sealing device for a pipe joint. The sealing device comprises an elastic element (3) and a connection element capable of applying an axial force on the elastic element (3) and enabling the elastic element (3) to be radially deformed, wherein the connection element comprises a connection rod (2) and a fastener (6) connected with the connection rod (2). According to the sealing device, by applying the axial force on the elastic element, the elastic element is closely bonded with the inner wall of the pipe joint, so that sealing for the pipe joint is realized. The sealing device for the pipe joint is high in sealing performance; and moreover, the sealing device is simple in structure, few in machining procedures, convenient to operate, economic and reasonable, capable of being repeatedly utilized, and applied to the technical field of high-pressure sealing for various container pipe joints.
Owner:HARBIN ELECTRIC CORP QINHUANGDAO HEAVY EQUIP

Carbon dioxide-absorbing device for anaesthesia machine

InactiveCN101954142AUniform axial forceGuaranteed Upward Displacement DimensionsRespiratorsIsolation valveCo2 absorption
The invention discloses a carbon dioxide-absorbing device for an anaesthesia machine. The device comprises a CO2-absorbing tank and a control part which is arranged between a breathing circuit and a bypass device, wherein the control part comprises a guide linkage rod in linkage with a top block arranged at the top end of the CO2-absorbing tank. The device is characterized by a guide isolating valve and a transmission isolating valve which are arranged on a mounting base and are serially connected, wherein the mounting base is tightly connected with the bottom of a gas exchanging main body; the top of the gas exchanging main body is tightly connected with a breathing circuit butt joint seat; and the guide isolating valve and the transmission isolating valve are controlled by the guide linkage rod in a chamber of the gas exchanging main body to move upwards and downwards in a linkage way along the axial direction of the guide linkage rod. The guide isolating valve and the transmission isolating valve of the device are uniformly stressed in the axial direction without position locking phenomenon; the upward displacement distance of the guide isolating valve and the transmission isolating valve can be easily guaranteed; improper CO2-absorbing tank mounting position caused by position locking or an isolating valve upward moving process can be effectively prevented; and risk of hurting patient due to CO2 re-absorption can be avoided.
Owner:深圳市百格医疗技术有限公司

Single-roller crusher

ActiveCN103433094AReduce stressStress (impact reduction on the spindleGrain treatmentsAlloyAxial force
The invention relates to a crushing device of sintered ore cakes in iron and steel plants, namely a single-roller crusher. The single-roller crusher comprises a rack; the rack is provided with a rotary main shaft; a plurality of tooth rollers with single teeth are ranked on the main shaft; a plurality of single teeth are uniformly distributed along the peripheries of the tooth rollers; an alloy hammer head is fixed on the top side surface of each single tooth; the main shaft is supported to bearing seats at two sides of the rack, and is driven by a driving mechanism and a speed reduction mechanism; in the drive directions of the tooth rollers, from the second tooth roller, the tooth rollers are installed by deviating from the adjacent former roller at a certain equal angle; the deviation angle is equal to the value obtained by dividing an included angle between two single teeth on the tooth rollers by the quantity of the tooth rollers. Under the premise of guaranteeing the high-temperature resistance and abrasion resistance of the device, more attention is paid to research on the service life of the device; through changing the installation angles of the ranked tooth rollers, the axial force is very uniform, the phenomenon of shaft cracking caused by nonuniform stress between the axial force and the radial force is reduced, the main shaft stress is improved, the service life of the main shaft is prolonged, and further the whole service life of the device is prolonged.
Owner:TONGHUA JIANXIN TECH CO LTD

Steel truss support capable of reserving door opening and steel truss tube structure with support

The invention belongs to the technical field of building construction, and relates to a steel truss support capable of reserving a door opening and a steel truss tube structure with the support. Node plates (7) are connected with a frame beam (5) and frame columns (6) respectively, a lateral bracing (3) is connected with vertical bracings (4) which are connected with a lower frame beam (10), six bracing pieces (8) which are in pairwise connection through end plates (9) are connected with the frame beam (5) and the frame columns (6) respectively, two bracing pieces (8) are connected with the vertical bracings (4) and the lower frame beam (10), long diagonal bracings (2) are connected with the bracing pieces (8), the lateral bracing (3) and the vertical bracings (4), and short diagonal bracings (1) are connected with the node plates (7) and the long diagonal bracings (2). By the aid of a mode of changing dimensions of the bracings, structural bearing capacity is improved, a door opening can be reserved at bracing position, steel consumption is reduced, and economic benefit and applicability are improved.
Owner:RIZHAO WEIYE TOOL

Pre-stress applying device for steel pipe inner support of deep foundation pit

The invention discloses a pre-stress applying device for a steel pipe inner support of a deep foundation pit. Compared with the mode of steel material welding reinforcement, the design of a bolt sleeve type support device has the advantages that axial stress is more uniform, and the bolt sleeve type support device is detachable and convenient to assemble and transport. Through the group arrangement of inserting bolt type support rods into sleeves, pre-stress can be gradually applied to a design value by using jacks at different time points for multiple times. Corresponding steel pipes are usedaccording to different support force requirements, the diameters and length of bolts, the number of the sleeves, the number of ribs and the like are made through calculation, and designed pre-stressconstruction requirements can be met when corresponding torque is used. The device is high in practicability, safe and reliable, simple in construction, easy to mount, easy to disassemble, high in efficiency and low in material consumption.
Owner:CHINA MCC17 GRP

Gear shifting hand rocker

The invention discloses a gear shifting hand rocker. The hand rocker comprises a fixing body, two wire winding wheels, a handle and a gear shifting mechanism, the gear shifting mechanism comprises a hollow push pull member, the push pull member is provided with a clamping member, the fixing body is provided with a supporting shaft, the push pull member rotatably sleeves the supporting shaft and isconnected with the handle, the two wire winding wheels rotatably sleeve a\ shaft sleeve which is arranged on the supporting shaft, the push pull member or the supporting shaft, and the push pull member can be pushed or pulled to move in the axial direction of the push pull member to allow the clamping member of the push pull member to clamp one of the two wire winding wheels. The push pull membersleeves the supporting shaft, gear shifting operation is achieved through the axial moving of the push pull member to allow the supporting shaft to be taken as a primary load bearing carrier to prevent movement in the axial direction, so that the gear shifting of the hand rocker is stable, the vibration is faint, there exists no noise, and the service life of the hand rocker is longer.
Owner:九牧智能厨卫(安徽)有限公司

Anti-bending synchronous and symmetrical automatic grinder device and use method thereof

The invention relates to an anti-bending synchronous and symmetrical automatic grinder device, which includes a first base. A first disc plate is fixedly installed at the top of the first base, a chuck motor is installed in the middle of the right end of the first disc plate, a four-jaw chuck is installed at the right end of the chuck motor, an annular groove with the right end communicating withthe outside world is formed in the right end of the first disc plate, and the inner diameter of the annular groove is much greater than the diameter of the four-jaw chuck. The anti-bending synchronousand symmetrical automatic grinder device has the beneficial effects that the structure is simple, operation is convenient and easy, automatic grinding of workpieces can be achieved, during grinding,axial stress of workpiece shafts can be guaranteed to be uniform, and deformation is avoided; and the workpiece shafts can be cut in the opposite direction of rotation of the workpiece shafts, in theway, the bending degrees of the workpieces are controlled in a preset range, thus the requirement of the processing accuracy is met, simpleness and high efficiency are achieved, and the convenience and rapidity are achieved.
Owner:无锡琅得精密机械有限公司

Heat exchange device for methanol synthesis reactor

The invention relates to a heat exchange device for a methanol synthesis reactor, which comprises a plurality of heat exchange tubes which are arranged along the length direction of the reactor, wherein the two ends of the heat exchange tubes are connected with a water inlet device and a water outlet device respectively. The heat exchange device for the methanol synthesis reactor is characterized in that: the heat exchange tubes are linear; the water inlet device has a box structure and comprises a first surface and an arched second surface which are formed by annular tube plates, the first surface is provided with a water outlet into which end parts of the heat exchange tubes are inserted, and the second surface is provided with a water inlet which is used for connecting an external circulating cooling system; and the structure of the water outlet device is identical with the water inlet device. Compared with the prior art, the heat exchange device provided by the invention is easy to process and high in heat exchange efficiency and suitable for the methanol synthesis reactor of megaton or above.
Owner:CHINA PETROCHEMICAL CORP +2

Leakage-proof V-shaped ball valve

The invention relates to a leakage-proof V-shaped ball valve which comprises a valve body, a valve seat, a V-shaped ball body, a valve rod and a 90-degree drive device. The leakage-proof V-shaped ball valve is characterized in that upper filler and lower filler are installed in a groove-shaped filler box; an upper adjusting block and a lower adjusting block are installed between the upper filler and the lower filler; a disc spring is installed between the upper adjusting block and the lower adjusting block; a left-hand thread is arranged on the lower portion, in contact with the valve rod, of the upper adjusting block; a right-hand thread is arranged on the upper portion, in contact with the valve rod, of the lower adjusting block; the portions, combined with the upper adjusting block and the lower adjusting block; of the valve rod are provided with threads matched with the left-hand thread of the upper adjusting block and the right-hand thread of the lower adjusting block; a gland is installed on the outer wall of the groove-shaped filler box through the threads; and a cushion block presses the upper filler, the upper adjusting block, the disc spring, the lower adjusting block and the lower filler under the action of downward force of the gland. The leakage-proof V-shaped ball valve has the advantages that automatic compensation is conducted after filler abrasion, a dual seal function of combination of soft seal and metal seal is achieved between the valve rod and the filler, the leakage prevention property is good, and the service life is long.
Owner:KAIRUITE VALVE

Electric hydraulic ring-plug pump

The invention relates to an electric hydraulic ring-plug pump, and belongs to the technical field of hydraulic power element structures. A bearing, an oil distribution sleeve, a spring, a ring plug, a guiding ring, a tilting disc, a driving ring, a tilting disc, a guiding ring, a ring plug, a spring, an oil distribution sleeve, a spring, a ring plug, a guiding ring, a tilting disc, a driving ring, a tilting disc, a guiding ring, a ring plug, a spring, an oil distribution sleeve and a bearing sequentially sleeve a hydraulic pump stator of the electric hydraulic pump from left to right, and abut against each other. The electric hydraulic pump disclosed by the invention is simple in structure and adopts few movable parts, so that the reliability of the electric hydraulic pump is improved, and the cost of the electric hydraulic pump is reduced; the electric hydraulic pump is a two-way hydraulic pump; the distance between a high-pressure oil cavity and a low-pressure oil cavity is long, and equal to the heights of the two ring plugs, and the internal leakage between the high-pressure oil cavity and the low-pressure oil cavity is small; the rigidity of the springs of the hydraulic pump is high, so that the self-sucking capability of the hydraulic pump is high; the electric hydraulic pump is provided with few rotating parts, so that the rotating inertia is small.
Owner:HARBIN INST OF TECH

Rewinding roll for rewinding machine

InactiveCN104176535AReduce the non-suction areaAdsorption capacity continuousWebs handlingHigh densityPulp and paper industry
The invention discloses a rewinding roll for a rewinding machine. A plurality of air suction ports are formed in the cylindrical surface of the rewinding roll; each air suction port is of a slit type, and the length direction of each slit type air suction port is in parallel with the axis direction of the rewinding roll. Compared with an existing rewinding roll with a circular air suction port, the rewinding roll has the advantages that 1, under the condition that the axial dimension of the rewinding roll is the same, non-suction positions among the air suction ports are reduced, and the adsorbing force of the rewinding roll on paper becomes more successive in the width direction of the paper; 2, the axial force applied on the paper being adsorbed and wound becomes more uniform, and the situation of crinkly paper end cannot appear easily; 3, the rewinding roll can easily guarantee the winding roundness of the end part of the paper while driving the end part of the paper for winding, and the rewinding machine can continuously produce paper roll products with high-quality cores; 4, the adsorbing force of a single air suction is greater, the rewinding roll can easily adsorb paper in higher density and harder texture and smoothly rewind the paper, and the paper adaptability of the rewinding machine is reinforced.
Owner:FOSHAN BAOSUO PAPER MASCH MFG CO LTD

Cylindrical rock test piece side face grinding device and using method thereof

The invention provides a cylindrical rock test piece side surface grinding device and a using method thereof. The grinding device comprises bases, stabilizing supporting columns, clamping columns andgrinding rods, a motor and a limiting telescopic rod are arranged in the base, the stabilizing supporting columns support and fix the whole device, and the clamping columns are fixed between the basesand used for stably clamping a rock test piece, and the grinding rods are evenly arranged around the clamping columns and used for grinding the side face of the rock test piece; and the grinding method comprises the steps of clamping the rock test piece, installing the grinding rods, adjusting the position of the rock test piece, grinding the rock test piece and picking the rock test piece. According to the cylindrical rock test piece side face grinding device and the using method thereof, the rock test piece is not prone to being damaged, practicability and high efficiency are achieved, themanufacturing success rate is high, the rock test piece with the accurate diameter size and the smooth surface can be manufactured through one-time grinding, a foundation is laid for a laboratory rockmechanical test, and important significance is achieved for preventing and controlling mine disasters.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Symmetric ocean current power generation device with single impeller and high length-diameter ratio

The invention discloses a symmetric ocean current power generation device with single impeller and a high length-diameter ratio. The device adopts a single-impeller symmetric structure; two sets of transmission and power generation systems are respectively arranged at two ends of an impeller hub; the transmission and power generation systems mainly consist of guide covers, and generators and transmission gear boxes mounted in the guide covers; the two sets of transmission and power generation systems are symmetrically distributed about the impeller hub; the impeller hub is connected with the transmission gear boxes by main shafts; output ends of the transmission gear boxes are connected with the generators; impeller blades are mounted on the peripheral surfaces; and output cables of the generators of the two sets of transmission and power generation systems are connected with synchronization or load devices by electric parallel balance output devices. The device optimizes the two-way flow field characteristics, realizes the power dividing, effectively reduces the specification performance requirements on the transmission and power generation systems under the same power, decreases the design and manufacturing costs, effectively improves the stress condition of a horizontal-axle ocean current power generation device, improves the operation stability, and prolongs the service life.
Owner:ZHEJIANG UNIV

Mechanical bionic power device

The invention relates to a mechanical bionic power device. The device comprises an elastic capsule, and a fiber layer which supplies axial pulling force to the elastic capsule, wherein the fiber layeris of a net-shaped structure which is provided with regular polygonal grids; the grids are provided more than four sides and extending diagonal lines which are vertical to an axis of the elastic capsule; the grids are also provided with contracting diagonal lines which are vertical to the extending diagonal lines or two opposite sides which are parallel to the extending diagonal lines; the gridsare used for forming two sides of a top point, and the two sides are fixed to reach other. When the elastic capsule is in an expansion process, the radial size of the elastic capsule changes, the extending diagonal lines of the grids are stretched to extend in the circumference direction of the elastic capsule; the size of the contracting diagonal lines of the grids or the distance between the twosides which are parallel to the extending diagonal lines is reduced, so that the opposite distance of two axial ends of the elastic capsule can be reduce, and the elastic capsule is capable of generating uniform axial force. The device is simple in structure, and high in practicability.
Owner:HENAN SENYUAN ELECTRIC CO LTD

Truncated platform composite material member and metal member positioning adhesion process

ActiveCN100585196CSave raw materialsSolve the technical problems of precision positioningAdhesive processesFastening meansAxial displacementNumerical control
The invention relates to a positioning and bonding technology of a truncated-cone-shaped composite material part and a truncated cone-shaped metallic part. The technology comprises: the modification of a numerical control presser used for positioning and bonding, the manufacture of tooling for locking and positioning, trial assembly, glue application, official assembly, curing and the like. The technology adopts the specially designed tooling for locking and positioning and solves the technical problem of precise positioning in bonding process; the numerical presser is adopted to press assembly parts and as the axial force imposed by the numeric presser is even and stable, axial displacement generated during the traveling process of heat insulating sleeves of the assembly parts is prevented so as to guarantee the axial positioning and the consistency in axial degree of products after bonding; the technology adopts the numerical presser to press the assembly parts and has high precision in axial positioning, and the effective displacement quantity of the truncated-cone-shaped composite material part can be precisely controlled so as to guarantee that the square erection of the truncated cone-shaped composite material part can cross the distance up to the bottom of the truncated cone-shaped metallic part. The technology is used and promoted in practice, with a one-time bonding qualified rate up to over 99 percent, thereby greatly saving raw materials.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH

Outer fixing frame experiment table capable of detecting axial stress condition of skeleton

The invention discloses an outer fixing frame experiment table capable of detecting the axial stress condition of a skeleton, and the outer fixing frame experiment table comprises a Taylor outer fixing frame, a pressurization mechanism, a rack, a skeleton model, an upper skeleton fixing part and a lower skeleton fixing part, the pressurization mechanism is fixed on the rack, and the output end ofthe pressurization mechanism is connected with the upper end of the skeleton model through the upper skeleton fixing part. The lower end of the skeleton model is fixed to the rack through the lower skeleton fixing part, and the Taylor outer fixing frame is fixed to the outer side of the skeleton model and fixed to the skeleton model through a steel needle. According to the device, the healing process of the broken bone under the condition that the Taylor outer fixing frame is installed can be simulated in a laboratory environment, the stress condition of each connecting rod of the external fixing frame when axial force is applied to the broken bone in the healing process is detected, and axial mechanical monitoring of the healing process of the bone provided with the Taylor outer fixing frame is achieved in the laboratory environment.
Owner:ZHEJIANG UNIV OF TECH

A suspended ceiling frame structure with open pipe anchors

The invention relates to a suspended ceiling framework structure with an open type pipeline fixer. The suspended ceiling framework structure comprises connecting plates used for being fixedly connected with a roof, pipeline hoisting mechanisms, a pipeline pressing mechanism and a steel cable supporting mechanism. The multiple groups of pipeline hoisting mechanisms are connected between the connecting plates through a supporting rod structure, and are arranged in an array mode along the axis of a supporting rod, each pipeline hoisting mechanism comprises a hoisting hook, the middle of the hoisting hook is provided with a fixed opening for penetrating of a pipeline, the pipeline pressing mechanism comprises a sliding block B, the sliding block B is fixedly connected to the supporting rod structure in a sliding mode, the side face of the sliding block B is provided with a supporting protrusion, the top end of the supporting protrusion is provided with a pipeline pressing face, the steel cable supporting mechanism comprises a stable cable end fixing mechanism and a steel cable winch, a steel cable is tightened through the winch, therefore the cable between swing balls and a stable cable passing groove is contracted, the hoisting hook is driven to swing, and the pipeline is pressed between a pipeline contact face and the pipeline pressing face.
Owner:南京尚艺良品科技有限公司

Steel truss support capable of opening windows and steel truss cylinder structure with this support

The invention belongs to a steel truss support capable of windowing and a steel truss barrel structure including the same. A node plate (7) is connected with a framed beam (5) and a frame column (6), two ends of a long inclined support (2) are respectively connected with a support rod (8), and the support rod (8) is connected with an end plate (9) and is respectively connected with the framed beam (5) and the frame column (6). A horizontal support (3) is connected with a vertical support (4), the connecting position between the horizontal support (3) and the vertical support (4) is connected with the long inclined support (2), and a short inclined support (1) is respectively connected with the node plate (7) and the long inclined support (2). Connectors of the short inclined support (1), the long inclined support (2), the horizontal support (3), the vertical support (4), the support rod (8) and the end plate (9) are prefabricated by a factory. The steel truss support improves the bearing capacity of the structure by increasing width and thickness of supporting flanges, a window can be arranged at a position where the support is arranged, and the economic benefit and the applicability are improved while steeling using amount is saved.
Owner:江苏瑞成建筑科技有限公司

A stent weaving method and a stent made by the method

ActiveCN111118729BReduce lateral stretchReduce shorteningStentsBraidEngineeringStructural engineering
The invention discloses a bracket weaving method and a bracket made by the method. The method uses a cylindrical fixture, takes any position point as a reference as a starting point, and makes the wire alternately bend up and down along a diagonal direction through a positioning pin. Folding movement and winding movement up and down through the positioning pin along the direction of the circumferential dividing line, and through the crossing between the wires to form a woven net with a combination of benzene ring structure and rhombus structure. The vertical straight rods in the benzene ring structure are parallel to the axis of the stent. After the stent is released from the sheath to the human cavity, due to the existence of the vertical straight rods, compared with the prior art, the stent will not be shortened too much in the longitudinal direction. The point on the vertical straight rod is only subjected to the force along the axis of the stent, thereby reducing the transverse stretch of the whole stent and reducing the shortening rate of the stent.
Owner:JIANGSU VEDKANG MEDICAL SCI & TECH

Flexible mounting structure of rotary blade and turning and pressing device

The invention discloses a flexible mounting structure of a rotary blade and a turning and pressing device, and belongs to the technical field of agricultural machinery. The flexible mounting structure comprises a flexible mounting tool apron and a flexible buffering structure, one end of the flexible mounting tool apron is provided with a connecting sleeve structure matched with the connecting end of the rotary blade, the other end of the flexible mounting tool apron is provided with an arc-shaped mounting end, a sliding way is formed in the part, close to a connecting sleeve, of the arc-shaped mounting end, and a boss is arranged on the other corresponding side of the arc-shaped mounting end. The arc-shaped mounting end surrounds a rotary blade mounting shaft, the end with the boss is connected to the mounting shaft, and the flexible buffering structure is connected between the boss and the sliding way of the flexible mounting tool apron on the other corresponding rotary blade. A compression spring in the flexible buffering structure is mounted in a compressed mode and can provide certain pre-tightening force, when a machine works in soil with many gravels or encounters green manure with thick and strong root systems, the flexible mounting tool apron is impacted and buffered through the flexible buffering structure, the flexible mounting tool apron is driven by the flexible buffering structure in the advancing working state of the machine, obstacles in the soil can be smoothly crossed, and the rotary blade is not damaged.
Owner:TARIM UNIV

A deep foundation pit steel pipe internal support prestressing device

The invention discloses a deep foundation pit steel pipe internal support prestress applying device. By designing the bolt sleeve type support device, compared with the steel welding reinforcement method, the axial force is more uniform, and the device is detachable and convenient for assembly and transportation. The bolt-type struts are inserted into the sleeve group arrangement, and the prestress can be gradually applied to the design value by using the jack multiple times at different points in time. Corresponding to different support force requirements, use the corresponding steel pipe, and formulate the bolt diameter and length, the number of sleeves, the number of ribs, etc. through calculation, and the design prestress application requirements can be achieved when using the corresponding torque. The device has strong practicability, safety and reliability, simple construction, easy installation and dismantling, high efficiency and less material consumption.
Owner:CHINA MCC17 GRP

single roll crusher

ActiveCN103433094BReduce stressStress (impact reduction on the spindleGrain treatmentsAxial forceAlloy
The invention relates to a crushing equipment for sintered cake in a steel plant, that is, a single-roller crusher. it Including the frame, there is a rotating main shaft on the frame, and a plurality of toothed rollers with single teeth are arranged on the main shaft, and a plurality of single teeth are evenly distributed along the circumference of the toothed rollers, and an alloy hammer head is fixed on the side of each single tooth tip , the main shaft is supported on the bearing seats installed on both sides of the frame, the main shaft is driven by the driving mechanism and the reduction mechanism, the toothed rollers start from the transmission direction, and each toothed roller is evenly offset from the previous toothed roller starting from the second toothed roller Installed at a certain angle; the offset angle is equal to the angle between two single teeth on the toothed roller divided by the number of toothed rollers. On the premise of ensuring the high temperature resistance and wear resistance of the equipment, more attention is paid to the research on the service life of the equipment. By changing the installation angle of the toothed rollers, the axial force is very uniform, and the difference between the axial force and the radial force is reduced. The phenomenon that the shaft breaks evenly improves the stress on the main shaft and the life of the main shaft, thereby improving the overall life of the equipment.
Owner:TONGHUA JIANXIN TECH CO LTD

A ring plug electro-hydraulic pump

The invention relates to an electric hydraulic ring-plug pump, and belongs to the technical field of hydraulic power element structures. A bearing, an oil distribution sleeve, a spring, a ring plug, a guiding ring, a tilting disc, a driving ring, a tilting disc, a guiding ring, a ring plug, a spring, an oil distribution sleeve, a spring, a ring plug, a guiding ring, a tilting disc, a driving ring, a tilting disc, a guiding ring, a ring plug, a spring, an oil distribution sleeve and a bearing sequentially sleeve a hydraulic pump stator of the electric hydraulic pump from left to right, and abut against each other. The electric hydraulic pump disclosed by the invention is simple in structure and adopts few movable parts, so that the reliability of the electric hydraulic pump is improved, and the cost of the electric hydraulic pump is reduced; the electric hydraulic pump is a two-way hydraulic pump; the distance between a high-pressure oil cavity and a low-pressure oil cavity is long, and equal to the heights of the two ring plugs, and the internal leakage between the high-pressure oil cavity and the low-pressure oil cavity is small; the rigidity of the springs of the hydraulic pump is high, so that the self-sucking capability of the hydraulic pump is high; the electric hydraulic pump is provided with few rotating parts, so that the rotating inertia is small.
Owner:HARBIN INST OF TECH

The steel truss support capable of opening the door opening and the steel truss cylinder structure with this support

The invention belongs to the technical field of building construction, and relates to a steel truss support capable of reserving a door opening and a steel truss tube structure with the support. Node plates (7) are connected with a frame beam (5) and frame columns (6) respectively, a lateral bracing (3) is connected with vertical bracings (4) which are connected with a lower frame beam (10), six bracing pieces (8) which are in pairwise connection through end plates (9) are connected with the frame beam (5) and the frame columns (6) respectively, two bracing pieces (8) are connected with the vertical bracings (4) and the lower frame beam (10), long diagonal bracings (2) are connected with the bracing pieces (8), the lateral bracing (3) and the vertical bracings (4), and short diagonal bracings (1) are connected with the node plates (7) and the long diagonal bracings (2). By the aid of a mode of changing dimensions of the bracings, structural bearing capacity is improved, a door opening can be reserved at bracing position, steel consumption is reduced, and economic benefit and applicability are improved.
Owner:RIZHAO WEIYE TOOL

Connecting method of plastic hollow wall winding pipe joint for traction

InactiveCN108724742AUniform axial forceReduce traction forceDomestic articlesAdhesiveButt joint
The invention discloses a connecting method of a plastic hollow wall winding pipe joint for traction, and belongs to the field of water supply and discharge. According to the technical scheme, a plastic special-shaped square pipe, melt adhesive, a heating element, a sealing sleeve and a abrasion prevention sleeve are involved, and the connecting step of the winding pipe joint comprises the following connecting steps that cutting is carried out, an end surface is cleaned, the heating element is fixed, the winding pipe joint is abutted jointed, the power supply of the heating element is poweredon, the butt joint is adhered, the butt joint is cooled, the outer surface of the joint is cleaned, the sealing sleeve sleeves the joint, and the abrasion prevention sleeve sleeves the sealing sleeve.The winding pipe joint is firm in connection, the strength is improved, and the connecting method can be widely applied to the field of water supply and discharge.
Owner:谭连平

An anti-leakage V-type ball valve

The invention relates to a leakage-proof V-shaped ball valve which comprises a valve body, a valve seat, a V-shaped ball body, a valve rod and a 90-degree drive device. The leakage-proof V-shaped ball valve is characterized in that upper filler and lower filler are installed in a groove-shaped filler box; an upper adjusting block and a lower adjusting block are installed between the upper filler and the lower filler; a disc spring is installed between the upper adjusting block and the lower adjusting block; a left-hand thread is arranged on the lower portion, in contact with the valve rod, of the upper adjusting block; a right-hand thread is arranged on the upper portion, in contact with the valve rod, of the lower adjusting block; the portions, combined with the upper adjusting block and the lower adjusting block; of the valve rod are provided with threads matched with the left-hand thread of the upper adjusting block and the right-hand thread of the lower adjusting block; a gland is installed on the outer wall of the groove-shaped filler box through the threads; and a cushion block presses the upper filler, the upper adjusting block, the disc spring, the lower adjusting block and the lower filler under the action of downward force of the gland. The leakage-proof V-shaped ball valve has the advantages that automatic compensation is conducted after filler abrasion, a dual seal function of combination of soft seal and metal seal is achieved between the valve rod and the filler, the leakage prevention property is good, and the service life is long.
Owner:KAIRUITE VALVE

A Ring Plug Electrohydraulic Actuator

A ring plug type electro-hydraulic actuator belongs to the technical field of hydraulic power. A bearing, an oil distribution sleeve, a spring, a ring plug, a guide ring, a swash plate, a driving ring, a swash plate, a guide ring, a ring plug, a spring, an oil distribution sleeve, a spring, a ring plug, a guide ring, a swash plate, a driving ring, a swash plate, a guide ring, a ring plug, a spring, an oil distribution sleeve and a bearing are sequentially arranged on a hydraulic pump stator from left to right in a sleeving manner, a piston of a piston rod assembly is arranged in an oil cylinder in a seal sliding manner, a piston rod at one end of the piston rod assembly penetrates through a through hole in the center of a seal end cover in a seal sliding manner, and a piston rod at the other end of the piston rod assembly penetrates through a through hole in the center of a connector end cover in a seal sliding manner. The ring plug type electro-hydraulic actuator is high in integration degree, rapid in piston rod action and reaction and high in conversion efficiency, and belongs to a mechanical, electrical and hydraulic integrated product. Internal leakage between high and low pressure oil cavities is little, and the self-sucking capability is strong.
Owner:HARBIN INST OF TECH

A side grinding device for a cylindrical rock test piece and its application method

The invention provides a grinding device for the side of a cylindrical rock specimen and a method for using the same. The grinding device includes a base, a stable support, a clamping column and a grinding rod. A motor and a limit expansion rod are arranged in the base. The entire device is supported and fixed by a stable pillar, and the clamping pillar is fixed between the bases for firmly clamping the rock specimen. The grinding rod is evenly arranged around the clamping pillar for grinding the side of the rock specimen. The method includes clamping the rock test piece, installing a grinding rod, adjusting the position of the rock test piece, grinding the rock test piece, and picking up the rock test piece. The side grinding device for the cylindrical rock test piece and the use method thereof in the present invention are not easy to damage the rock test piece , practical and efficient, with a high success rate of production, and can be ground at one time to produce rock specimens with precise diameter and smooth surface, which lays the foundation for laboratory rock mechanics tests and is of great significance to the prevention and control of mine disasters.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
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