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55results about How to "Improve positioning strength" patented technology

Novel combined type building formwork fixing structure

The invention discloses a novel combined type building formwork fixing structure. The fixing structure includes first fixing rods; the outer walls on the two ends of each first fixing rod are providedwith grooves; the outer walls on one sides of the two grooves are in clamp connection with tenons; the outer walls on one sides of the tenons are welded with second fixing rods; the outer walls on one ends of the second fixing rods are provided with pulling grooves; the outer walls on the other sides of the second fixing rods are welded with telescoping rods; the telescoping rods are inserted inthe inner walls of the pulling grooves; the outer walls of the two sides on the top of each second fixing rod are welded with connecting blocks; the outer walls on the opposite sides of the connectingblocks are provided with pre-tightening rods; and the outer walls on one sides of the second fixing rods are welded with second pins. A threaded rod is not easy to stretch and deform, so that the axial strain capabilities of the threaded rod can be enhanced, the fixing effects of a building formwork positioning structure can be improved, the integral intensity of the fixing structure can be enhanced, and the fixing structure has strong protection effects on internal concrete.
Owner:TIANJIN XINFUSHENG NEW BUILDING TEMPLATE CO LTD

Novel automatic tolerance adjusting device

PendingCN110153948AAchieve lockingRealization of automatic tolerance adjustmentMetal-working hand toolsEngineeringKinetic energy
The invention provides a novel automatic tolerance adjusting device which comprises an upper shell, a positioning stud, a locking gasket, a star-like piece and an adjusting nut. The upper and lower ends of the positioning stud are fixedly connected with the upper shell and the adjusting nut through threads, and the locking gasket is arranged in a first inner cavity of the upper shell and freely moves in an axial hole gap; and the outer wall of the star-like piece is provided with a pusher dog, the star-like piece is arranged in a second inner cavity of the positioning stud and freely moves ina star-like hole gap, and the pusher dog pushes and adjusts a star-like boss of the adjusting nut and drives the adjusting nut to rotate. The novel automatic tolerance adjusting device fully utilizeskinetic energy generated by rotation and advancement of bolts, can achieve automatic rigid supporting to eliminate tolerance accumulation, realizes rapid and effective precise positioning and assembling, and solves the problems that in the prior art, the steps are many, the cost is high, the operation technical difficulty is high, and the work efficiency is low; and meanwhile, the overall structure is fixed in rigidness and suitable for application to special conditions with higher strength.
Owner:SHANGHAI JIAMU AUTO PARTS CO LTD

Grooving cutter

ActiveCN104858456AImproved resistance to lateral impactsImprove positioning strengthCutting insertsTurning toolsEngineeringCutting force
The invention discloses a grooving cutter which comprises a tool rest body and a blade, wherein a blade groove is formed in the front end of the tool rest body; the blade groove comprises a blade clamping section and an extension section; the blade is mounted in the blade clamping section; a first lower part positioning surface, a second lower part positioning surface, a lower part front end side positioning surface and a lower part rear end side positioning surface are arranged at the lower part of the blade; the lower part front end side positioning surface and the lower part rear end side positioning surface are opposite in positioning direction; the first lower part positioning surface and the second lower part positioning surface form an included angle beta in the length direction of the blade; a first bearing surface, a second bearing surface, a lower part front end side bearing surface and a lower part rear end side bearing surface which are respectively corresponding to the first lower part positioning surface, the second lower part positioning surface, the lower part front end side positioning surface and the lower part rear end side positioning surface are arranged at the lower part of the blade clamping section. The groove cutter has the advantages of being high in positioning intensity and accuracy, and capable of bearing a lateral cutting force.
Owner:ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD

Fine adjustment device for intelligent fine adjustment system of ballastless track slab

The invention relates to a fine adjustment device for an intelligent fine adjustment system of a ballastless track plate. The device comprises a base, a Y-direction adjustment structure is arranged onthe base, a Y-direction adjustment head and an X-direction adjustment structure are arranged on the Y-direction adjustment structure, an X-direction adjustment head and a Z-direction adjustment structure are arranged on the X-direction adjustment structure, and a Z-direction adjustment head is arranged on the Z-direction adjustment structure. Steering mechanisms are arranged between the X-direction adjustment structure and the X-direction adjustment head and between the Z-direction adjustment structure and the Z-direction adjustment head respectively, the steering mechanisms adjust the transmission direction to enable the X-direction adjustment head, the Y-direction adjustment head and the Z-direction adjustment head to face the same direction, and a connecting piece is arranged on the Z-direction adjustment structure. The adjustment device has the effects that all the adjustment structures are arranged to adjust the position of the connecting piece in the space coordinate system, a track plate is straightened and leveled through cooperation of the connecting pieces of the multiple fine adjustment devices, and meanwhile, the orientations of all the adjustment heads are consistentthrough the arrangement of the steering mechanisms, so workers can operate all the adjustment heads more conveniently.
Owner:CHINA RAILWAY NO 3 ENG GRP EAST CHINA CONSTR CO LTD +3

External-hanging type spare tire rapid replacement device and spare tire mounting and detaching method

ActiveCN107089103ALabor-saving spare tire loading and unloading processReduce difficultyWork holdersTyre repairingSpare tireCoil spring
The invention discloses an external-hanging type spare tire rapid replacement device and a spare tire mounting and detaching method. The defects that an existing spare tire rapid replacement device is hard in spare tire mounting and detaching processes, the difficulty of spare tire replacement is increased, spare tire mounting and detaching operation is complex, the stability of a spare tire is not good after mounted on the rapid replacement device, and the safety hidden danger of slipping exists are overcome. The external-hanging type spare tire rapid replacement device comprises a base, a spare tire storage frame and a mounting frame; a left clamping arm and a right clamping arm are arranged on the mounting frame; the spare tire storage frame is connected on the left clamping frame and the right clamping frame in an abutting mode; a spring balancer is mounted on the left clamping arm; a coil spring is arranged in the spring balancer; one end of the coil spring extends out of the balancer and is connected with and tightens the spare tire storage frame; a connecting lock is mounted between the right clamping arm and the spare tire storage frame; a spare tire positioning mechanism is connected on the inner surface of the spare tire storage frame; the spare tire is mounted on the spare tire storage frame and positioned through the spare tire positioning mechanism; and an elastic positioning pin used for being connected on the inner wall of a spare tire rim in an abutting mode is arranged at the upper end of the mounting frame.
Owner:ZHEJIANG LAND ROVER AUTOMOBILE +1

Automatic tolerance adjusting device

The invention provides an automatic tolerance adjusting device. The device comprises an upper housing, a positioning stud, a locking spacer and an elastic adjusting sheet, wherein the upper housing isof a hollow chamber structure, and an inner chamber of the upper housing is divided into a mounting hole and a first inner chamber through a baffle plate; a protruded outer edge is arranged at the opening end of the mounting hole; positioning ribs are arranged on the outer wall of the upper housing; the elastic adjusting sheet is arranged on the outer surfaces of the positioning ribs; a boss which fits the first inner chamber is arranged in the middle part of the positioning stud, and the boss is instead into the first inner chamber; the upper housing is fixed to the positioning stud in a thread connection manner; and the locking spacer is arranged in the first inner chamber and can freely move in a shaft hole clearance which is formed between the end surface of the boss and the baffle plate of the upper housing. According to the device, the dynamic energy through which a bolt rotates and forwards moves is fully utilized to automatically remove tolerance accumulation, thus accurate positioning and assembling can be quickly effectively realized, and the defects of a plurality of processes, high cost, high difficulty in operation technology and low working efficiency in the prior art can be solved.
Owner:SHANGHAI JIAMU AUTO PARTS CO LTD

Steel structure building wallboard unit structure easy to assemble

The invention provides a steel structure building wallboard unit structure easy to assemble. The steel structure building wallboard unit structure comprises a mounting underframe, a connecting column, an upper gland, upper positioning grooves and lower positioning grooves, wherein walls are fixedly connected to the upper portion of the mounting underframe, and the lower surfaces of the walls are located in a mounting underframe groove; the connecting column is movably connected between the two sets of walls; the upper positioning grooves are formed in the left sides and the right sides of the upper surfaces of the walls correspondingly in two positions; the upper gland is fixedly connected to the upper portions of the upper positioning grooves through screws; the lower positioning grooves are formed in the lower surfaces of the walls; the mounting underframe is an arched groove body, and a lower reinforcing block of a trapezoidal structure is connected to the upper surface of the mounting underframe in a welded mode; and a lower fixing hole is formed in front of the lower reinforcing block and is an internal threaded hole. Therefore, the connecting mode of the spliced walls is improved, a middle connecting mechanism is improved, and the problems of stress concentration and insufficient airtightness of the wall connecting positions are reduced while the connecting strength is ensured.
Owner:黄海湖

Blade polishing device for wind power generation

The invention provides a blade polishing device for wind power generation, belongs to the technical field of wind power generation part machining, and aims to solve the problem that when blades of a fan are polished, due to the fact that the arc-shaped edges of the blades are of irregular structures, when the edges of the blades need to be polished, numerical control equipment is used for polishing the blades with different arc-shaped structures, and corresponding data calculation and programming need to be carried out for different types of blades, so that small batch blade production is inconvenient. The blade polishing device for wind power generation comprises a conveying frame, wherein two sets of automatic pressing balance frames are fixedly connected to the upper surface of the conveying frame; the two sets of automatic pressing balance frames are fixedly connected to the left side and the right side of the conveying frame correspondingly; and two telescopic cylinders are fixedly connected onto the upper surface of an upper frame cover. Two blades are installed at the same time, and the edges of the blades on the front side and the rear side are polished in sequence, so that operation is easy and convenient; and polishing of the arc-shaped edges of the blades with various structures can be achieved without equipment adjustment, so that compared with numerical control polishing equipment, the steps of programming and equipment size adjustment are omitted.
Owner:南通创智新材料科技有限公司

Roller tractor rear balance weight

The invention discloses a roller tractor rear balance weight which comprises a first balance weight block and a second balance weight block. The first balance weight block is provided with a center hole. Eight bolt positioning holes evenly distributed along the circumference are formed in the edge of the center hole. Two symmetric bolt positioning holes of the eight bolt positioning holes are in a semi-circular notch shape and used for installing a spacer bush. The other six bolt positioning holes are round holes used for installing bolts. The outer side face of the first balance weight block is provided with three grooves evenly distributed along the circumference. Threaded holes are formed in the circle centers of the grooves of the first balance weight block. Six grooves evenly distributed along the circumference are formed in the outer side of the second balance weight block. Protrusions are arranged opposite to three spaced grooves of the six grooves, the protrusions on the second balance weight block adjacent to the first balance weight block correspond to the grooves of the first balance weight block, and positioning holes are further formed in the circle centers of the grooves of the second balance weight block. Two small planes are symmetrically arranged along the outer circumference of the second balance weight block and used for assembling rear receding valves. The roller tractor rear balance weight is reasonable and simple in structural design, reliable in positioning and convenient to disassemble and assemble, balance weights with different weights can be selectively installed according to requirements, and different practical work requirements are met.
Owner:SHANDONG CHANGLIN DEUTZ FAHR MACHINERY

A kind of indexable blade and its tool holder

ActiveCN103357907BHigh strengthImprove positioning accuracy and clamping strengthTurning toolsAcute angleKnife blades
The invention discloses an indexable blade and a cutter bar. The indexable blade is in a basic shape capable of being projected into a regular triangle in a plane, wherein three corners form cutting heads respectively; a vertex angle of each cutting head is a 35-degree acute angle; cutting edges are formed between the adjacent cutting heads; each cutting edge is an inward recessed V shape along the edge of the regular triangle, and is intersected with the side edge of a circle concentric with an inscribed circle of the regular triangle; the radius of the concentric circle is less than that of the inscribed circle of the regular triangle, and greater than two thirds of the radius of the inscribed circle of the regular triangle; circular arc bulges are arranged in the middles of the cutting edges of the blade, and clamped with side supporting surfaces correspondingly arranged at a mounting seat of the cutter bar; and the indexable blade can be fastened on the mounting seat by a clamping device. With the adoption of the structure, the positioning accuracy and the clamping strength of the blade are improved; cutter head displacement due to too great cutting force is avoided; and the indexable blade has the characteristics of high economic performance, high strength and high machining precision.
Owner:XIAMEN GOLDEN EGRET SPECIAL ALLOY

Refrigerator door counter installation component and refrigerator door

The invention provides a refrigerator door counter installation component and a refrigerator door. A refrigerator door counter is installed to a door body of the refrigerator door through the installation component. The installation component comprises a pivot seat, a pivot reinforcing member, an elastic member and a pivot. The pivot seat is installed to the refrigerator door counter, an installation slot for accommodating the elastic member and the pivot is formed in one end face of the of pivot seat, a positioning hole of the pivot is formed in the side wall of one side of the installation slot, the pivot seat is provided with fasteners and a first positioning mechanism, the pivot reinforcing member is provided with a second positioning structure which is matched with the first positioning mechanism, and the pivot reinforcing member is connected and fixed with the pivot seat through the fasteners. The pivot seat of the refrigerator door counter installation component is free of insert holes so that blistering can be avoided effectively, the operation of injecting waterproof glue to a matching surface between the pivot seat and the pivot reinforcing member is omitted, the counter is easy to install and operate, cost is lowered, and production efficiency is improved.
Owner:HEFEI MIDEA REFRIGERATOR CO LTD

Lubricating pump, pump body and pump cover thereof

The invention discloses a pump body of a lubricating pump, comprising a pump shaft support hole, a rotor cavity and a big end surface. The big end surface is used for mounting the pump cover and recesses inwards along the radial direction of the rotor cavity to form stepped-holes. The invention also discloses a pump cover of the lubricating pump, comprising the pump body and the pump cover. The pump cover is embedded into the stepped-holes and matched with the stepped-holes in transition. The invention also discloses a lubricating pump, comprising the pump body, the pump cover, an inner rotor, an outer rotor and a pump shaft. The edge of the pump cover is matched with the stepped-holes in transition and seals the rotor cavity, the pump shaft passes through the pump shaft support hole, theend part of the pump shaft extends into the support hole at the end part of the pump shaft, the pump shaft is also internally provided with an overflow circumfluence hole which extends from one end of the pump shaft far from the pump cover along the radial direction of the pump shaft, and the axial length of the overflow circumfluence hole is shorter than that of the pump shaft. The invention improves the locating accuracy and the locating strength of the pump cover, simplifies the assembling flow, improves the working efficiency, avoids the engine oil leakage phenomenon, and has simple and compact structure and easy implementation.
Owner:南京腾源机械制造有限公司

Coiled tubing steel strip butt joint process and raw material thickening equipment applied in butt joint process

ActiveCN110860773ASolve burning edgeSolve the phenomenon of grinding thinningEdge grinding machinesPlasma welding apparatusButt jointCoiled tubing
The invention discloses a coiled tubing steel strip butt joint process, and belongs to the technical field of coiled tubing machining and manufacturing. The coiled tubing steel strip butt joint process comprises the following steps that S1, the end parts of coiled tubing steel strip joints are cleaned, and dirt, impurities and burrs are removed; S2, the end parts of the coiled tubing steel strip joints are subjected to the wall thickness increasing treatment by using an end face hammering mode; S3, the end parts of the two coiled tubing steel strip joints to be subjected to butt joint are trimmed to be orderly, then are tightly abutted and aligned, and are welded firmly and reliably by using a plasma welder; and S4, the welded junction part is finished, and welding burrs and overlaps are removed through grinding. According to the butt joint process, the edge burning and excessive penetration conditions in the welding process can be effectively reduced, the thickness of the wall of thewelding area after finishing and grinding is prevented from being reduced, and the welding quality of the steel strip butt joint is improved. The invention further discloses steel strip butt joint rawmaterial thickening equipment used in the process for hammering and thickening the end parts of the coiled tubing steel strip joints.
Owner:XINDA KECHUANG TANGSHAN PETROLEUM EQUIP CO LTD
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