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51results about How to "Reduce hard friction" patented technology

Rock burst/rock explosion analog simulation energy storage-time tank device

A rock burst / rock explosion analog simulation energy storage-time tank device belongs to the technical field of geotechnical engineering. By adopting the device, the study on the mechanism of rock burst / rock explosion can have breakthrough, the characteristics of energy and time factors which cause the rock burst are considered, and an elastic energy accumulating process can be recorded, and the time required by elastic energy releasing can be recorded. The lower ends of four long rigid rods and four short rigid rods of an extensometer are respectively connected with a strain gage, the lower ends of the four long rigid rods and the lower ends of the four short rigid rods of the extensometer are respectively fixed into an extensometer placement tank of a lower rigid pressing plate, the upper ends of the four long rigid rods of the extensometer are in contact with a 45-degree chuck arranged at the lower end of the upper rigid pressing plate; screw holes of the side wall of the four short rigid rods of the extensometer are in threaded connection with screws; an upper energy storage-time tank and a lower energy storage-time tank are respectively connected with an upper pressure sensor and a lower pressure sensor, and the upper pressure sensor and the lower pressure sensor are respectively connected with piston rods of an upper load cylinder and a lower load cylinder. The device is used for rock burst / rock explosion analog simulation experiments.
Owner:HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY

Tray separation device

ActiveCN103010761AReduce hard friction problemsSmooth separation operationDe-stacking articlesFriction ProblemEngineering
The invention discloses a tray separation device, which comprises a base, a movable frame and two regulating rails, wherein the movable frame and the two regulating rails are arranged on the base, the movable frame does forward and backward movement on the base, a tray pushing part and a first support part are convexly arranged on the upper surface of the movable frame, the two outer sides of the movable frame are respectively and convexly provided with position limiting blocks in relative arrangement, the two regulating rails respectively extend in forward and backward directions and are respectively and movably erected at the two sides of the movable frame, the inner sides of the two regulating rails are respectively and convexly provided with a first regulating block and a second regulating block in forward and backward arrangement, the position of the position limiting block is limited between the first regulating block and the second regulating block, at least two inclined surfaces are respectively formed at the front and back parts on the upper surfaces of the two regulating rails, a second support part is arranged on the base in a way of corresponding to the position beside each inclined surface, and regulating shafts are horizontally and convexly arranged at the inner sides of the second support parts. Compared with the prior art, the tray separation device has the advantages that the hard friction problem in the tray separation is greatly reduced, the separation operation is stable and reliable, the separation efficiency is high, and the tray separation device is applicable to various kinds of products requiring the separation operation.
Owner:深圳市土世界环保科技工程有限公司

Surveying and mapping instrument for engineering surveying and mapping

The invention relates to the technical field of engineering surveying and mapping, and discloses an surveying and mapping instrument for engineering surveying and mapping. The instrument comprises a bearing plate, and a connecting column is fixedly mounted at the bottom of the bearing plate. According to the surveying and mapping instrument for engineering surveying and mapping, a lever is formed through the connection relation of the first connecting rod, the second connecting rod and the four-corner balance ball, the supporting rods in the inclined state are subjected to contraction adjustment under the action of the auxiliary balls according to the lever principle, and when the independent supporting rod on one side is subjected to telescopic change, the other three supporting rods can automatically adapt to the change of the inclined supporting rods under the lever action formed by the first connecting rod, the second connecting rod and the four-corner balance ball to keep the overall balance degree of the surveying and mapping instrument; an internal threaded pipe is inserted from a connecting groove formed in the bottom end of the interior of the connecting frame; and the top of the internal threaded pipe is attached to the bottoms of the first connecting rod and the second connecting rod which keep balance, and the device can automatically calibrate balance and is higher in practicability.
Owner:山东标至信土地房地产资产评估测绘有限公司

Automobile brake inspection bench capable of preventing wheels from deviating from simulated road surface

The invention discloses an automobile brake inspection bench capable of preventing wheels from deviating from a simulated road surface. The automobile brake inspection bench comprises a frame, wherein left and right groups of brake inspection devices are arranged on the frame, and both include driving drums and driven drums; supporting tables are arranged between the driving drums and the driven drums; two limiting devices are arranged on the supporting tables. The limiting devices comprise bases, locating tubes and retainer wheels; the locating tubes are connected to the upper end surfaces of the bases; cavities arranged in the vertical direction and communicated with the lower end surfaces of the retainer wheels are formed in the retainer wheels; the retainer wheels are connected with rotating shafts; the upper ends of the rotating shafts are positioned in the cavities of the retainer wheels; the upper ends of the locating tubes are embedded in the cavities of the retainer wheels; the lower ends of the rotating shafts are embedded in the locating tubes. The automobile brake inspection bench has a simple massive structure, and is convenient to be realized; when the automobile brake inspection bench is applied, the wheels are guided through the retainer wheels to prevent the wheels from deviating from the simulated road surface, so that the inspection efficiency is improved.
Owner:IYASAKA CHENGDU IND

Long ring steamer ring forming mechanism

ActiveCN102260975AIncrease speedThe speed of the vehicle can be greatly improved, which greatly improves the production efficiency.Liquid/gas/vapor textile treatmentEdge surfaceEngineering
The invention relates to a long-ring rapid steamer, in particular to a ring forming mechanism of the long-ring rapid steamer, belonging to the technical field of printing and dyeing equipment. The ring forming mechanism comprises crank combination parts (3), a ring forming plate (4), a main track (6), a ring chain (8) and an auxiliary track (10), wherein the ring forming mechanism comprises a plurality of the crank combination parts (3), each crank combination part (3) comprises a clamping sleeve (3.1), a crank (3.2), a pin shaft (3.3), a connecting plate (3.4) and a small rolling wheel (3.5), the outer edge surface of each clamping sleeve (3.1) is the tooth surface, the auxiliary track (10) comprises a front oblique section (10.2) and a rear straight section (10.1), a rack (10.3) is arranged on the oblique section (10.2) and the rack (10.3) is meshed with the outer edge tooth surfaces of the clamping sleeves (3.1). The ring forming mechanism of the long-ring rapid steamer can continuously form a ring in a non-intermittent manner, thereby greatly improving the production efficiency of the rapid steamer; furthermore, the rapid steamer is good in operation stability, small in noise and longer in service life.
Owner:江阴市永欣印染机械有限公司

Nanometer grinding agent capable of reducing gear vibration, gear surface grinding agent, and preparation and application thereof

The invention belongs to the technical field of material friction and lubrication, and particularly relates to a nanometer grinding agent capable of reducing gear vibration, a gear surface grinding agent, and preparation and application thereof. The nanometer grinding agent capable of reducing gear vibration is prepared from nanometer stage titanium dioxide, zirconium oxide, aluminum nitride, elemental copper, cerous fluoride, molybdenum disulfide and lead oxide. The invention also provides the gear surface grinding agent containing the nanometer grinding agent. The gear surface grinding agentcan reduce the starting abrasion of a friction pair and hard friction in the boundary lubrication state, and can also perform mechanical restoration and polishing on concave pits or bulges on the gear engaging surface, so that the surface of the friction pair such as a gear can be smoother; the surface microstructure of the gear friction pair can be effectively improved in a short time; the flatness degree of the transmission pair contact surface can be improved; the gear vibration can be effectively reduced; the goals of transmission vibration reduction and more stable operation can be achieved; the grinding agent is applicable to the surface microdefect correction of most metal abrasion pairs; the vibration of machinery due to surface micro appearance defects of movement pairs can be reduced.
Owner:HENAN UNIV OF SCI & TECH

Gear-oil additive, gear lubricating oil, preparation method and application thereof

ActiveCN108659918AReduced start-up wearReduce hard frictionAdditivesLead oxideGraphite
The invention belongs to the field of lubricants and particularly relates to a gear-oil additive, gear lubricating oil, a preparation method and application thereof. The gear-oil additive is preparedfrom the following components in parts by mass: 1-3 parts of nanoscale copper powder, 2-5 parts of nanoscale silicon dioxide, 3-6 parts of nanoscale alumina, 2-5 parts of nanoscale graphite, 1-4 partsof micron-order lead oxide and 3-6 parts of micron-order molybdenum disulfide. The invention also provides the gear lubricating oil containing the gear-oil additive. The gear lubricating oil has thebeneficial effects that not only can the starting wear of a friction pair and the hard friction under the boundary lubricating state be reduced, but also mechanical microrepair and polishing are carried out on pits or bulges on the meshing surface of a gear, the hardness value of the tooth surface of the gear can be increased by about 15%, the value of roughness Ra of the gearing surface is reduced by 5-10% and the vibration noise is reduced by 6-11%.
Owner:HENAN UNIV OF SCI & TECH

Anti-shaking pay-off rack used for electric power construction

InactiveCN111634746AReduce hard frictionReduce large jitterFilament handlingBandageChassis
The invention relates to the technical field of electric power construction, and discloses an anti-shaking pay-off rack used for electric power construction. In order to improve cable pay-off stability in the electric power construction, a supporting mechanism is fixed on one side of a pushing handle above a supporting bottom frame; a wire roller is clamped with a positioning clamping cover through a bearing pedestal; the inner side of a positioning foundation bed is symmetrically fixedly provided with a spacing sliding rod; and the outer side of each spacing sliding rod is clamped with a down-pulling sliding seat and an up-pulling sliding seat in sequence from front to back. Through the supporting of the supporting mechanism for the wire roller, a worker can conveniently carry out installing, fetching and placing work of the wire roller, meanwhile, a position stopping bandage on the inner side of the supporting mechanism is used for sheathing the wire roller, so that the worker can conveniently control a wire roller pay-off speed, through the combination of the down-pulling sliding seat and the up-pulling sliding seat, a situation that the cable shakes to a large extent due to rigid pulling in a pay-off process can be lowered, and therefore, the operation intensity of the worker is lowered.
Owner:高焕根

Hydraulic bolt type wind power mounting ship locking device

The invention discloses a hydraulic bolt type wind power mounting ship locking device. The hydraulic bolt type wind power mounting ship locking device comprises a ring beam assembly, bolt assemblies and locking assemblies, wherein four groups of bolt assemblies and four groups of locking assemblies are arranged and are respectively arranged at corresponding positions of the ring beam assembly, namely bolt oil cylinder bases of the bolt assemblies are connected with locking support plates on the ring beam assembly through bolts; bearing pins of the locking assemblies are connected with bearingpin holes of the bolt oil cylinders and the ring beam assembly in a matching way; during operation, the locking assemblies are matched with pile leg pin blocks, and the pin blocks are locked and matched through sliding friction among the arc-shaped pin blocks on the end faces under the action of the bolt oil cylinders by adjusting springs; after the pin blocks are completely matched, the adjustingsprings are compressed, and a load is transferred to a bearing block. According to the hydraulic bolt type wind power mounting ship locking device, a ship body can be locked at any position relativeto a pile leg, the friction damage of the locking device is reduced, the service life of the locking device is prolonged, and the safety performance of the locking device is improved.
Owner:XI'AN PETROLEUM UNIVERSITY

Solar power generation panel cleaning device and cleaning method thereof

The invention discloses a solar power generation panel cleaning device and a cleaning method thereof. The solar power generation panel cleaning device comprises a cleaning assembly and an air blowing device which are connected together through an installation shell, matching holes are formed in the circumferential side face of the installation shell and connected with an assembly frame, a circumferential baffle and an upper baffle are arranged at the lower part of the installation shell, an opening is formed in the front part of the circumferential baffle, a spiral blade is arranged on the inner side face of the circumferential baffle and spirally ascends from the opening, and one side of the spiral blade is connected with a dust collection box which is arranged on the inner side face of the circumferential baffle, the air blowing device is arranged at the front part of the upper baffle, an air blowing opening is formed in the front end of the air blowing device, a driving motor is fixedly connected into the installation shell and connected with a lower rotating brush, bristles are arranged at the bottom of the rotating brush, and a water seepage pipe is arranged between the bristles and installed on the outer side face of the circumferential baffle through a connecting piece. A solar power generation panel is cleaned by rotating the bristles, so that the surface of the solar power generation panel is prevented from being scratched, and the solar power generation panel always keeps higher light transmittance.
Owner:北京新奥京谷燃气有限公司

Solar power generation panel capable of automatically cleaning surface dust and cleaning method thereof

The invention discloses a solar power generation panel capable of automatically cleaning surface dust and a cleaning method thereof. The solar power generation panel comprises a plurality of solar power generation panels arranged on a rotating base, a rotating shaft is arranged on the rotating base, a supporting frame is arranged above the rotating shaft, and the solar power generation panels are arranged above the supporting frame; moving parts are arranged on the edges of the two sides of each solar power generation panel, blowers and dust removal mechanisms are arranged on the moving parts, each dust removal mechanism comprises an assembling rod and a plurality of cleaning components arranged on the assembling rod, each cleaning component comprises an installing shell, a circumferential baffle is arranged on the lower portion of each installing shell, and spiral blades are arranged on the inner side surface of the circumferential baffle. A dust collection box is connected to one side of the spiral blades and arranged on the inner side surface of the circumferential baffle, a rotary brush is arranged below the installing shell, bristles are arranged at the bottom of the rotary brush, and a water seepage pipe is arranged between the bristles. By arranging the cleaning device on each solar power generation panel, automatic cleaning of each solar power generation panel can be completed, and a large amount of manpower and material resources are saved.
Owner:甘肃省安装建设集团有限公司

A foldable portable mobile garage

InactiveCN105863364BReasonable structureThe structure is stable and wear-resistantTents/canopiesWear resistantSun protection
The invention discloses a foldable portable mobile garage, which is characterized in that it comprises a garage skeleton, nylon mesh and a coverall, the garage skeleton is assembled from several stretchable metal rods, and the nylon mesh is set On the garage frame, a plurality of connectors are provided on the inner side of the nylon mesh corresponding to the garage frame. The telescopic metal rod is connected to the nylon mesh through the connectors to form a main frame, and the coverall is set on the main frame. The invention is reasonable in structure, stable and wear-resistant, not easy to deform, and has good safety. The wear-resistant layer can improve the service life of the garage; the overcoat can be disassembled and folded, and has good sun protection and heat preservation effects.
Owner:SHAOXING UNIVERSITY

Front-drive-mode light anti-explosion new energy vehicle power transmission device

The invention discloses a front-drive-mode light anti-explosion new energy vehicle power transmission device. The device comprises a motor, a speed reducer is arranged below the motor, a driven shaft is installed below the speed reducer, and an oil injection assembly is arranged above the left side of the speed reducer. According to the front-drive-mode light anti-explosion new energy vehicle power transmission device, through interference fit between a piston plate and a square box and clearance fit between a vertical rod and a vertical cylinder, under rotation of a cam and the action of a first spring, the piston plate can slide up and down, and then oil in the square box is extruded and sprayed; then fine oil injection is achieved on a gear set in the speed reducer, the lubrication degree of the gear set is better, the transmission effect is guaranteed, the dismounting and mounting efficiency is greatly improved, the dismounting and mounting difficulty is reduced, the working efficiency of workers is improved, and rapid dismounting and mounting between the motor and the speed reducer can be achieved; and the speed reducer or the motor can be conveniently maintained and overhauled subsequently, and the operation practicability is greatly improved.
Owner:河北翼凌机械制造总厂

A coiled tubing four-ram blowout preventer semi-sealing device and method

ActiveCN109138895BJudgment of wear and tearAvoid man-made damageSealing/packingCoiled tubingEngineering
The invention relates to a semi-sealed device of a four-ram blowout preventer of a coiled tubing and a method. According to the technical scheme, an expandable semi-sealed rubber cylinder is installedat the center of a blowout preventer body, the self-locking end of the tail portion is fixed to the blowout preventer body through a rubber opening pressing ring, and a circular annular cavity is formed; and a semi-sealed expansion control block is fixed to the outer side of the blowout preventer body, an oil inlet buffer groove and an oil outlet buffer groove are formed in the inner side of theblowout preventer body, and the oil inlet buffer groove corresponds to the expandable semi-sealed rubber cylinder of the blowout preventer body. The semi-sealed device of the four-ram blowout preventer of the coiled tubing and the method have the beneficial effects that the expandable semi-sealed rubber cylinder is of an integral structure, the expandable semi-sealed rubber cylinder is fixed in aspecial-shaped cavity of the blowout preventer body through the rubber opening pressing ring, during use, the expandable semi-sealed rubber cylinder can be self-locked on the blowout preventer body bypressing, the other side expands to seal the outer wall of the coiled tubing in a contacted mode, mutual balance of the pressure of internal and external of gas or liquid is achieved, leakage is notprone to occurring, using is more reliable, and the service life of the expandable semi-sealed rubber cylinder is prolonged.
Owner:DAQING DANFENG PETROLEUM TECH DEV CO LTD

Mathematic drawing tool storage box

The invention discloses a mathematic drawing tool storage box. The mathematic drawing tool storage box structurally comprises a box body, a box cover, an upper box body, a lower box body, a slide groove and a slide block, wherein a handle is arranged at the right side surface of the exterior of the box body; a lower lock latch is arranged at the surface of the front end of the exterior of the boxbody; the box cover comprises a rotary shaft, a baffle plate, a handle and an upper lock latch, the rotary shaft is arranged at the bottom part of the box cover, the box cover is connected with the box body through the rotary shaft, and both ends of the baffle plate are arranged in the middle part of the box cover by threads. The mathematic drawing tool storage box has the advantages that the upper lock latch and the lower lock latch are embedded and connected through a lock tongue, so that the stability in carrying by a teacher is ensured, and the destroy to the internal structure by a student after class is prevented; vertical separating plates are staggered and distributed in the upper box body and the lower box body, so that the storage capacity is large, and the drawing tools are moreclearly classified, and can be conveniently fetched by the teacher in use; pulleys are arranged at both sides of the bottom part of the lower box body, and are moved on the slide groove, so that therigid friction between the bottom structure of the lower box body and the bottom part of the box body is greatly reduced, and the bottom structure of the box body is effectively protected.
Owner:曾小桐

Blind hole boring cutter assembly

The invention provides a blind hole boring cutter assembly. The blind hole boring cutter assembly comprises a cutter head main body, a rotating body, a cutter rod and a rotating shaft. A cutter head is arranged on the periphery of the cutter head main body and used for cutting a hole inner wall. The rotating body is used for rotating the cutter head during cutting, a plurality of height-adjustablesupporting blocks are arranged on the periphery of the rotating body, and during cutting of the cutter head, the supporting blocks make contact with the hole inner wall. The cutter rod is provided with a hand-held part. The rotating shaft penetrates through the rotating body, and the two ends of the rotating shaft are connected with the cutter head main body and the cutter rod correspondingly. When the cutter head cuts the hole inner wall, a hole of a machining piece rotates, the cutter head main body and the cutter rod move in the horizontal direction and simultaneously rotate with the holein the same direction under driving of static friction force, and the rotating speed of the rotating body is the same as that of the hole; and when the cutter head cuts the hole inner wall, the rotating speed of the hole of the machining piece is 50-300 r / min. The blind hole boring cutter assembly has the effects that friction of the supporting blocks is reduced, vibration is eliminated, and chipremoving is facilitated.
Owner:西安鑫旺矿业设备有限公司

Semi-sealed device of four-ram blowout preventer of coiled tubing and method

ActiveCN109138895ANormal productionJudgment of wear and tearSealing/packingCoiled tubingSelf locking
The invention relates to a semi-sealed device of a four-ram blowout preventer of a coiled tubing and a method. According to the technical scheme, an expandable semi-sealed rubber cylinder is installedat the center of a blowout preventer body, the self-locking end of the tail portion is fixed to the blowout preventer body through a rubber opening pressing ring, and a circular annular cavity is formed; and a semi-sealed expansion control block is fixed to the outer side of the blowout preventer body, an oil inlet buffer groove and an oil outlet buffer groove are formed in the inner side of theblowout preventer body, and the oil inlet buffer groove corresponds to the expandable semi-sealed rubber cylinder of the blowout preventer body. The semi-sealed device of the four-ram blowout preventer of the coiled tubing and the method have the beneficial effects that the expandable semi-sealed rubber cylinder is of an integral structure, the expandable semi-sealed rubber cylinder is fixed in aspecial-shaped cavity of the blowout preventer body through the rubber opening pressing ring, during use, the expandable semi-sealed rubber cylinder can be self-locked on the blowout preventer body bypressing, the other side expands to seal the outer wall of the coiled tubing in a contacted mode, mutual balance of the pressure of internal and external of gas or liquid is achieved, leakage is notprone to occurring, using is more reliable, and the service life of the expandable semi-sealed rubber cylinder is prolonged.
Owner:DAQING DANFENG PETROLEUM TECH DEV CO LTD

Surgical instrument disinfection equipment for general surgery department

InactiveCN113332475AEasy to roll back and forthContact flexibleLavatory sanitoryRadiationInterior spaceEngineering
The invention discloses surgical instrument disinfection equipment for general surgery department. The equipment is structurally provided with a base, a disinfection box body, a control box, a visible opening and a door cover, the disinfection box body is fixedly installed above the base, the control box is located above the disinfection box body and matched with the disinfection box body, the visible opening and the door cover are of an integrated structure and located at the middle end of the integrated structure, and the door cover is movably connected to the front end of the disinfection box body. A tray rod frame, a movable body and a variable ball generate interaction force, so that a folded plate is laterally opened, an elastic block is pressed, the elastic force of an air cushion and an air hole of the air cushion are convenient to press and sink, a tough block is pushed, the internal space of the air pressure cavity is changed, the air pressure is changed to act on a concentric-square-shaped groove, and rolling balls are subjected to blowing force generated by the elastic block, so that the rolling balls can roll back and forth, and react on the folding plates, the folding plates can swing and fold circularly, flexible contact between the variable balls and the tray rod frame is facilitated, and hard friction between the tray rod frame and the side end edge of a clamping rail is buffered.
Owner:戴丽云

Device for sleeving steel bars with pipes

InactiveCN111421803AEfficient and accurate casingImprove efficiencyDrive by wireRebar
The device comprises a device for sleeving steel bars with pipes, and relates to the technical field of building material machining. The device comprises a pipe sleeving mechanism. The pipe sleeving mechanism comprises a first mounting rack. A first rotating shaft is rotationally mounted on the first mounting rack. Multiple rotating discs arranged in the axial direction of the first rotating shaftat intervals are coaxially and fixedly connected to the first rotating shaft. Multiple containing grooves used for containing pipe segments are arranged in the periphery of each rotating disc at intervals, and limiting blocks used for limiting the two ends of the corresponding pipe segments are mounted on the two sides of each rotating disc. A first linear drive mechanism located above the rotating discs is mounted on the first mounting rack. Press blocks are mounted at the action end of the first linear drive mechanism and are driven by the first linear drive mechanism to be pressed on the limiting blocks, and through holes capable of allowing steel bars to penetrate are formed in the pressing positions of the press blocks and the limiting blocks. According to the device for sleeving steel bars with pipes, the technical problem that the efficiency of sleeving steel bars with pipes is low in the prior art is solved. By means of the device, steel bars can be sleeved with pipes efficiently and accurately, the manufacturing cost is low, and automatic work can be achieved.
Owner:SHANDONG BOCHUANG HEAVY IND CO LTD

Quick-charging data line adaptable to various mobile phones

The invention relates to the field of digital technology, in particular to a fast-charging data line adaptable to various mobile phones, which comprises a transmission line body, and two ends of the transmission line body are respectively provided with a power supply connecting part and an equipment connecting part. The equipment connecting part comprises a base arranged on the transmission line body and a plurality of inserting parts which are in different configurations and are detachably connected to the base; one side, far away from the transmission line body, of the base is provided with a charging cavity for butt joint of a single insertion part; the plugging part comprises a middle chip and a butt joint end connected to the middle chip, and the inner wall of the charging cavity is provided with a transmission part which can cooperate with the middle chip for communication connection. The method and the device have the effect of improving the convenience when a user uses the same data line to quickly charge different mobile phones (the same charging interface).
Owner:深圳市爱普丰电子有限公司

Aluminum product clamp capable of preventing surface of aluminum product from being damaged during grinding

The invention relates to the technical field of aluminum product clamps, in particular to an aluminum product clamp capable of preventing the surface of an aluminum product from being damaged during grinding. The aluminum product clamp comprises a fixing frame, a clamping plate is mounted at the lower end of the fixing frame through a clamping mechanism, and a fixed seat is mounted at the middle end of the fixing frame through a mounting mechanism; and a movable seat is arranged on the surface of the fixed seat through a telescopic mechanism, embedding grooves are formed in the surface of themovable seat, balls are movably mounted in the embedding grooves, a supporting frame is mounted at the upper end of the fixing frame through a fastening mechanism, and a hole is vertically formed in the center of the supporting frame. By arranging the balls, the balls protrude out of the surface of the fixed seat so that the balls can bear the aluminum product placed on the fixed seat, the balls can be driven to rotate when the aluminum product moves, friction force is converted into kinetic energy, hard friction force is reduced, and the situation that the surface of the aluminum product is abraded due to hard friction is avoided.
Owner:易礼超

Wheel limit device used when testing brake performance of automobile

The invention discloses a wheel limit device used when testing the brake performance of an automobile. The device comprises a base (1), a locating pole (2) and a catch wheel (3), wherein the lower end of the locating pole (2) is connected onto the upper end face of the base (1), and an upper annular table (4) and a lower annular table (5) are sleeved upon the upper end of the locating pole (2). The catch wheel (3) comprises a cylinder and a sealing cover plate, a round penetrating hole is formed in the sealing cover plate of the catch wheel (3), the locating pole (2) penetrates through the round penetrating hole of the sealing cover plate, and the sealing cover plate is sleeved upon the locating pole (2) between the upper annular table (4) and the lower annular table (5). A wheel can be limited and guided by the catch wheel (3) when the wheel limit device is applied to a brake test table, so that the wheel deviating from a simulated road is avoided, and the influences of artificially regulating the wheel on the test efficiency is avoided.
Owner:IYASAKA CHENGDU IND

Interval adjusting construction of moving component

The invention discloses a moving element clearance adjustment structure which comprises a first element, a second element and an adjusting ring which is provided with a radial through hole; the first element is provided with a housing which comprises a first surface, a second surface and a mounting hole which passes through the first surface and the second surface; the second element is inserted into the mounting hole and can axially move in relation to the first element; the adjusting ring is arranged in the mounting hole and positioned on a limit surface of the housing for avoiding the adjusting ring from axially falling off the mounting hole; the through hole of the adjusting ring is sheathed on the second element; the adjusting ring keeps radial clearances with the mounting hole, the through hole and the second element. When the roundness of the second element is not high, the second element generates slight friction with the adjusting ring to cause the adjusting ring to perform slight radial movement, which causes the clearance between the second element and the adjusting ring to become uniform and removes the friction, thus greatly reducing the verticality and roundness requirements of the second element and a support and lifting structure for driving the second element to axially go up and down and causing the assembly production to be easier and simpler.
Owner:SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD

Load hanging device for mechanical lifting tower crane

The invention provides a load hanging device for a mechanical lifting tower crane, which relates to the technical field of load hangers, and comprises a lifting hook body, a clamping plate, a protective sleeve, a balance sleeve and a traction piece, two sets of opposite side supporting pieces are installed at the lower hook end of the lifting hook body, one end of a pull rope is connected with the bottom side of the outer end of a tongue blocking piece, the other end of the pull rope is connected with the bottom end of a side connecting frame on the side supporting pieces, and the top end of the lifting hook body is further connected with a top connecting rod which is inserted in the middle of a protective sleeve in a penetrating mode and clamped through two sets of clamping plates. The balance sleeve is sleeved at the middle end of the top connecting rod through the key shaft hole, the lower end of the traction piece is of an inverted T-shaped structure and is provided with an insertion cavity, and the top connecting rod penetrates into the insertion cavity through the inner insertion hole and is clamped through a nut. And when the heavy object falls to the ground, the tongue blocking piece is automatically separated from the opening end of the lifting hook body, so that the problems that when the heavy object is lifted, the lifting rope is in hard friction with the bottom end of the inner side of the lifting hook body, the lifting hook body sometimes rotates along with the lifted heavy object, and the lifting safety is influenced are solved.
Owner:NANTONG KANGSHENG MEDICAL EQUIP

Coiled tubing four-gate blowout preventer

InactiveCN112031696AJudgment of wear and tearAvoid man-made damageSealing/packingCoiled tubingBlowout preventer
The invention relates to a coiled tubing four-gate blowout preventer. According to the technical scheme, an expandable semi-sealed rubber cylinder is installed in the center of a blowout preventer body; the self-locking end of the tail is fixed to the blowout preventer body through a rubber opening pressing ring to form an annular cavity; a semi-sealed expansion control block is fixed to the outerside of the blowout preventer body; an oil inlet buffer groove and an oil outlet buffer groove are formed in the inner side of the blowout preventer body; and the oil inlet buffer groove correspondsto the expandable semi-sealed rubber cylinder of the blowout preventer body. The coiled tubing four-gate blowout preventer has the advantages that the expandable semi-sealed rubber cylinder is of an integral structure and is fixed into the special-shaped cavity of the blowout preventer body through the rubber opening pressing ring, in the using process, the expandable semi-sealed rubber cylinder can be self-locked to the blowout preventer body through pressing, the other side of the expandable semi-sealed rubber cylinder expands to make contact with the outer wall of a coiled tubing for sealing, the pressure of gas or liquid inside and outside the expandable semi-sealed rubber cylinder is balanced, leakage is not likely to happen, use is more reliable, and the service life of the expandable semi-sealed rubber cylinder is prolonged.
Owner:曲睿婕
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