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221results about How to "Avoid friction" patented technology

Multifunctional wheelchair for handicapped person

InactiveCN101632614AStable and reliable lifting operationAvoid frictionWheelchairs/patient conveyanceVehicle frameWheelchair
The invention relates to a multifunctional wheelchair for handicapped persons, which consists of a vehicle frame, a chair, a vehicle wheel group, a wheelchair motor group and a power supply, wherein the chair is arranged on the vehicle frame; the lower part of the vehicle frame is provided with the vehicle wheel group; the machine frame is provided with the wheelchair motor group and the power supply for driving the vehicle wheel group. The vehicle frame consists of a horizontal base and a guide rail bracket which is vertically and fixedly arranged on the base; the front side of the guide rail bracket is provided with a suspension arm bracket which is driven to lift by a first linear motor fixedly arranged on the base and operates under the guidance of the guide rail bracket; a chair frame body is suspended under the suspension arm bracket through a rotating shaft; and the lower part of the chair frame body is provided with a turnover seat plate. The wheelchair of the invention is developed completely according to human body biomechanic properties and ergonomic theories and scientifically designed through finite element simulation analysis, is novel in structure, stable in operation, safe and reliable, simple in operation, convenient in use, overall in function and wide in application rage, can effectively the quality of life of the handicapped persons and is a highly creative and humane multifunctional wheelchair for the handicapped persons.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Mopping and sweeping integrated sweeping machine with self-cleaning function and sewage recovery function

The invention relates to the technical field of an intelligent sweeping machine, in particular to a mopping and sweeping integrated sweeping machine with a self-cleaning function and a sewage recoveryfunction. Th machine comprises an upper cover, a water pump, a printed circuit board, a display screen, a fan, a dust box, a front touch mechanism, a lower cover base, a battery, a UV lamp assembly,a middle sweep brush assembly, a universal wheel, a side brush, left and right wheel assemblies, a lifting gear box, a roller, a sewage recovery tank, a roller bracket, a roller gear box, a water purifying tank and a medium sweep gear box; the water pump, the fan, the dust box, the battery and the UV lamp assembly are mounted on the base of the lower cover, the universal wheel is installed in front of the lower cover base, the left and right wheel assemblies are respectively mounted on the left and right sides of the lower cover base of the sweeping machine, and the roller is mounted on the roller bracket. The machine solves granular waste, hair, dust and sewage generated by sweeping and mopping the ground at one time, recycles the garbage, the hair, the dust and the sewage into the relevant dust box and a sewage recycle tank, and improves the product practicality.
Owner:勤耕云智能科技(深圳)有限公司

Dual-motor optical element axial adjustment device

The invention provides a dual-motor optical element axial adjustment device, relates to the technical field of deep ultraviolet projection photoetching objective lens structural design and adjustment, and aims to solve the problems that an existing optical element aligning device is provided with a large number of actuators and is complex in mechanism and high in processing difficulty. The dual-motor optical element axial adjustment device comprises four capacitive sensors, an optical frame, eight connection screws, a smooth driving block and two piezoelectric actuators. The four capacitive sensors are placed parallel to the upper surface of the optical frame, are evenly distributed along the upper edge of the optical frame, and correspond to the midpoints of all right-angle sides of the smooth driving block. The optical frame and the smooth driving block are fixed through the connection screws. The two piezoelectric actuators are arranged at the diagonal positions of the smooth driving block respectively. An optical element is arranged in the optical frame. By means of the dual-motor optical element axial adjustment device, rapid and precise adjustment is realized, and meanwhile, the problems of friction, lubrication and hysteresis of a mechanical hinge are avoided; the smooth driving block acts on the optical frame so that damage to the surface form of the optical element by adjustment force can be effectively lowered; the structure is simple, a small number of motors are needed, and processing cost is low.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Manger cleaning equipment for livestock breeding

The invention discloses manger cleaning equipment for livestock breeding. The equipment comprises a manger rack structure, a horizontal movement mechanism and a washing mechanism, the horizontal movement mechanism is installed at the upper side of the manger rack structure, and the washing mechanism is erected at the lower side of the horizontal movement mechanism; the manger rack structure comprises a feeding manger, a drainage port, external extension plates, insertion grooves, a connection plate, connection grooves and insertion rods. The drainage port is formed in one side of the feeding manger, the two external extension plates are fixedly connected to the outer side of the feeding manger, and the insertion grooves are formed in the four corners of each external extension plate; the insertion rods are embedded in all the insertion grooves. According to the manger cleaning equipment for livestock breeding, the distribution structure of washing cylinders of the washing mechanism ismatched with the groove wall structure so that bristles can sufficiently act on the inner wall of the feeding manger, the bristles are made from silicone rubber pieces, have high elasticity and can sufficiently scrape feed residues of the manger wall, so that the feed residues are gathered at the bottom of the feeding manger, the cleaning effect is good, a motor drives a mounting rack to move in the front-back direction, and the feeding manger is conveniently and comprehensively cleaned.
Owner:JIAXING DAMING INDAL

Transformer iron core automatic lamination device

The invention belongs to the technical field of transformer accessory manufacturing, and particularly relates to a transformer iron core automatic lamination device which comprises a horizontal bottom plate, a platform is fixedly installed above the bottom plate through supporting columns, a positioning mechanism and a bearing mechanism are installed above the bottom plate, and a stacking mechanism is installed on the bottom plate; in the process of stacking upper-layer silicon steel sheets on lower-layer silicon steel sheets, the silicon steel sheets do not make contact with vertical rods, and the situation that friction is generated between the edges of the silicon steel sheets and the vertical rods is avoided; in the process of mounting a clamping plate after the silicon steel sheets are stacked into an iron core, the limiting effect on a single wedge-shaped block is sequentially relieved, so that a lifting block and a bearing plate move downwards under the action of self gravity, the bearing plate is separated from the bottom surface of the silicon steel sheet on the lowest layer, and the effect of mounting the clamping plate under the condition that the silicon steel sheets are not lifted is achieved; and the condition that extrusion force and friction force are generated between the silicon steel sheets and the vertical rods is avoided.
Owner:昌航电气有限公司

Windscreen wiper with automatic adjustment of wiping-arm pressing force

ActiveCN106347305AWeaken the increase in tensile deformationInhibition incrementVehicle cleaningEngineeringWindscreen wiper
The invention relates to a windscreen wiper with automatic adjustment of a wiping-arm pressing force. The windscreen wiper comprises a motor linking rod assembly (1), wiping arms (2) and wiping pieces (3), wherein two wiping arms (2) and two wiping pieces (3) are respectively arranged; the wiping pieces (3) are arranged on the corresponding wiping arms (2); the motor linking rod assembly (1) drives the wiping arms (2) to do reciprocating and circulating movement around an output shaft; each wiping arm (2) comprises a wiping rod head (21), a main tension spring (22), an extension arm (23) and a wiping rod (24). The windscreen wiper is characterized in that the extension arm (23) and the wiping rod (24) are in sliding connection, the wiping rod (24) is inserted into the extension arm (23) and an auxiliary compression spring (26) is arranged between the wiping rod (24) and the extension arm (23). The auxiliary compression spring (26) is sheathed on the wiping rod (24); one end of the auxiliary compression spring (26) is arranged on a boss structure of the wiping rod (24) in a supporting manner, and the other end of the auxiliary compression spring (26) is arranged on a groove shoulder of the inner wall of the extension arm (23) in a supporting manner. The windscreen wiper has the advantages that the basically-constant wiping-arm pressing force can be guaranteed.
Owner:CHERY AUTOMOBILE CO LTD

Ball electric spindle

InactiveCN106270573AAvoid frictionImprove product stability and service lifeLarge fixed membersPositioning apparatusFluePush out
The invention discloses a ball electric spindle. The ball electric spindle comprises a steel barrel and a rotor assembly, a cutter handle is arranged at the front end of the rotor assembly, a back cover is fixed to the back end of the steel barrel, a pull rod is arranged at the center of the rotor assembly, a sleeve is fixed to the back cover, and a piston assembly is arranged in the sleeve; a push rod assembly is arranged at the center of the piston assembly and is aligned with the pull rod, a first air inlet and a second air inlet are formed in the top of the sleeve, and the first air inlet is formed in the back side of the piston assembly; an air flue is formed in the sleeve and used for communicating the second air inlet and the front side of the piston assembly; when compressed air is injected into the first air inlet, the piston assembly is pushed by the compressed air, the push rod assembly is driven to apply push force to the pull rod, and the pull rod pushes out the cutter handle outwards; and when the compressed air is injected into the second air inlet, the piston assembly is pushed to move backwards, and the push rod assembly is driven to be separated from the pull rod. By means of the ball electric spindle, friction can be effectively prevented from being generated between the pull rod and the push rod, and the improvement of the product stability and the prolonging of the service life are facilitated.
Owner:深圳市爱贝科精密工业股份有限公司

Deformation compensation device for injection molding machine or die-casting machine

The invention discloses a deformation compensation device for an injection molding machine or a die-casting machine. The deformation compensation device is positioned between a movable mold plate and a pushing mechanism and/or between a stationary mold plate and a rack, and comprises a first base plate, a second base plate and an elastic connecting piece, wherein the elastic connecting piece is arranged between the first base plate and the second base plate; the first base plate is fixedly connected with the stationary mold plate or the movable mold plate; the second base plate is correspondingly and fixedly connected with the rack or the pushing mechanism; the elastic connecting piece comprises an elastic piece and a pre-tightening device; the elastic piece is positioned between the first base plate and the second base plate; the pre-tightening device is used for connecting the elastic piece between the first base plate and the second base plate by using certain pre-tightening force. By the adoption of a pre-tightening deformation compensation mechanism, the flexible sealing fit between a movable mold and a stationary mold can be ensured; meanwhile, the effect of material ejection pressure can be overcome, the sealing performance of die assembly is ensured, and the deformation compensation device is convenient to assemble and maintain.
Owner:苏州圣美特压铸科技有限公司

Photo-sensitive material solidification layer forming method in 3D (three-dimensional) printing and structure for implementing such method

The invention relates to a photo-sensitive material solidification layer forming method in 3D (three-dimensional) printing and a structure for implementing such method. The method includes disposing a photo-sensitive material in a horizontally rotatable container, and rotating the container when the photo-sensitive material forms a solidification layer under irradiation of a light source, wherein the container moves downwards while rotating so as to be separated from the solidification layer and then moves upwards to restore so as to achieve solidification of next solidification layer. The structure comprises a light source component, a liftable printout lifting plate and the round container mounted on a rotatable seat, and a specially designed orbital groove in the rotatable seat controls the round container to ascend and descend. The photo-sensitive material solidification layer forming method in 3D printing and the structure for implementing such method have the advantages that one-by-one forming of the solidification layers is achieved through ascending and descending of the container for holding the photo-sensitive material during rotating, so that shear force and frictional force generated by horizontal movement are avoided, and printout deformation, printout layer shedding and printed layer dislocation are reduced.
Owner:深圳市鑫创盈科技有限公司

Bending machine for stainless steel pipe machining

The invention discloses a bending machine for stainless steel pipe machining. The bending machine comprises a bending mechanism, a stainless steel pipe body and a supporting plate; the top of the supporting plate is fixedly connected with an operation box, the back surface of the operation box is fixedly connected with a transverse plate, a vertical plate is fixedly connected between one side of the top of the inner wall of the operation box and the same side of the bottom of the inner wall of the operation box, a partition plate is fixedly connected between the other side of the top of the inner wall of the operation box and the same side of the bottom of the inner wall of the operation box; one sides, opposite to each other, of the vertical plate and the partition plate are each rotationally connected with a threaded sleeve through a bearing, two sides between the back surface and the front surface of the inner wall of the operation box are each rotationally connected with a rotatingrod through a bearing; one side of the vertical plate is fixedly connected with a first motor through a connecting block, and the outer surface of an output shaft of the first motor is fixedly connected with a first belt wheel. The bending machine relates to the technical field of a stainless steel pipe production device. According to the bending machine for stainless steel pipe machining, two ends of the stainless steel pipe can be limited and fixed in the bending process, so that a steel pipe can be prevented from moving during bending work, and thus influence on subsequent work is avoided.
Owner:襄阳福康达机械有限公司

Automatic bag folding and integrated packaging system

The invention provides an automatic bag folding and integrated packaging system, and belongs to the technical field of works. The automatic bag folding and integrated packaging system solves the problems that an existing bag folding and integrated packaging machine is low in working efficiency, and many workers are needed. The automatic bag folding and integrated packaging system comprises a rack and a bag folding trolley. The rack is provided with a horizontal roller conveying line, a falling control device with a supporting plate and used for controlling falling of bags and a high-speed conveying line connected with the roller conveying line in series and capable of conveying the bags to fall on the supporting plate. The bag folding trolley is located below the falling control device. According to the automatic bag folding and integrated packaging system, the roller conveying line can adjust the postures and intervals of the bags automatically, and workers in the corresponding processes are saved; the high-speed conveying line guarantees that the bags totally fall on the supporting plate, and the postures of the bags falling on the supporting plate are the same, and thus the corresponding adjusting personnel is saved; at the bag folding trolley, only one lifting worker is needed to arrange a hook ring for lifting the bags in a lifting hook of a lifting device in a sleeving mode, and the automatic bag folding and integrated packaging system has the advantage that the workers required by operation are less.
Owner:林文彬
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