32results about How to "Realize displacement adjustment" patented technology

The invention discloses a throat bolt type variable thrust solid rocket engine ground testing device and belongs to the field of throat bolt engine ground testing. The throat bolt type variable thrustsolid rocket engine ground testing device comprises a driving mechanism and a simulating mechanism, wherein the driving mechanism comprises a motor fixing cover, a stepping motor, a sliding marker post, a motor fixing barrel, a movement limiting nut, a first movement transfer plate, a fastening nut, a second movement transfer plate, a first throat bolt connecting rod, a tension and pressure sensor, a second throat bolt seal ring, a displacement sensor and a movement connecting rod; the simulating mechanism comprises a front seal head, spring firmware, a left fixed barrel, a back seal head, acompression spring, a screw, a pressure sensor seat and a throat bolt. The throat bolt type variable thrust solid rocket engine ground testing device disclosed by the invention can achieve a throat bolt type variable thrust solid rocket engine ground test and has the advantages that (1) verification by tests at different thrusts and different pressures is achieved; (2) closed-loop control of the throat bolt of the engine is achieved; (3) the testing cost is low and more data is acquired; (4) the device is simple in structure and good in durability; and (5) the driving mechanism is light in weight.

The invention relates to a reflector antenna adjusting and positioning device and method, mainly relates to a small-caliber reflector antenna high-precision, high-efficiency, unstressed adjusting and positioning device and technological method, and belongs to the technical field of antenna assembling and calibrating, wherein the small caliber is the caliber of a reflector antenna and is not larger than 1 m. The adjusting and positioning device performs sub-reflector three-displacement and three-rotating-angle adjusting and positioning, solves the problems that during sub-reflector installation, positioning is not accurate, efficiency is low, the installation stability is poor and installation internal stress is prevented from being generated, and effectively improves the sub-reflector adjusting and positioning precision and efficiency.

The invention provides a direct contact type stretching deformation measuring system in a high-temperature oxygen-free environment, and relates to the field of stretching deformation measurement in the high-temperature oxygen-free environment. The system comprises an environment casing, a radiation furnace, stretching clamps, a stretching sample, a first extensometer water cooling box, a second extensometer water cooling box, extensometer transmission rods, a first support adjusting device, a second support adjusting devices, elastic components and foil gauges, a signal line, a first fixed plate, a second fixed plate, an aviation plug, a signal amplification converter and a display. A direct contact type measuring method can be used to transmit deformation of the sample to the elastic components accurately, and the sensitivity is higher; and the test temperature can reach 2000 DEG C, the elastic components and foil gauges are kept below 50 DEG C always, and an extensometer can be calibrated in normal temperature and used in the high temperature environment.

The invention relates to a similar simulation test device with the controllable load and adjustable dimension. The test device comprises a device frame, a left baffle, a right loading plate, an upperloading plate, a front baffle and a rear baffle. The left baffle is vertically arranged at the inner side of a left standing column of the device frame in a front-back direction; and the lower end ofthe left baffle penetrates a base of the device frame downwardly and can slide up and down relative to the base. The right loading plate is vertically disposed at the inner side of a right standing column of the device frame in a front-back direction; and a horizontal loading device in transmission connection with the right loading plate is installed at the right standing column. The upper loadingplate is horizontally disposed at the position, being close to a top beam, in the device frame in a left-right direction. A moving mechanism is arranged on the device frame and is in transmission connection with the upper loading plate. A vertical loading device is arranged at the top beam. The front baffle and the rear baffle are respectively installed at the front and rear sides of the device frame in an up-down sliding manner. The device has the following advantages: controllable loading of the similar model in vertical and horizontal directions can be realized; the pouring area size of the similar model can be adjusted; and the operation becomes convenient.

The invention relates to a welding gun regulating device applied to welding of horizontal H-shaped steel and belongs to the field of machinery manufacturing equipment. The welding gun regulating device is composed of a rack, a hydraulic pushing device and a welding gun regulating mechanism. The welding gun regulating mechanism is composed of a lifting mechanism and a rotating mechanism. The lifting mechanism is matched with an operation sliding rail through a welding lifting platform and installed on the rack and the rotating mechanism is composed of a welding gun, a welding gun connection sleeve, a welding gun regulating frame and a welding gun adjusting screw rod. The top of the welding gun regulating frame of the rotating mechanism is connected with a hinge pin sleeve of the lifting mechanism in a matched mode through a hinge pin. The top end of the hinge pin sleeve of the lifting mechanism is connected with the telescopic rod end of a hydraulic oil cylinder through an abutting and pushing frame so that the welding gun can lift along with stretching and contracting of the telescopic rod of the hydraulic oil cylinder and rotate around the hinge pin relative to the welding gun lifting platform under the rotation drive of screwing the adjusting screw rod. Thus, the height and the rotation angle of the welding gun relative to the H-shaped steel can be regulated. The welding gun regulating device applied to welding of the horizontal H-shaped steel is simple in structure and can be widely applied to welding of H-shaped steel with the uniform section and varying sections.

The invention relates to the technical field of machining, in particular to inner supporting type pipe end face automatic welding and cutting groove machining equipment. The inner supporting type pipe end face automatic welding and cutting groove machining equipment comprises a machine body, an expansion mechanism assembly, a rotating fluted disc, a driving transmission mechanism and a mechanical cutting executing mechanism, wherein the machine body is in a circular ring shape and is hollow, the rotating fluted disc is also in a circular ring shape and is installed in the machine body, the top of the machine body is provided with a mounting disc, the mounting disc is fixedly connected with the rotating fluted disc in the machine body, and the mechanical cutting executing mechanism is fixedly installed on the mounting disc; and the expansion mechanism assembly comprises a driving device, expansion adjusting rods and expansion blocks, each expansion block is in a circular arc shape, the radian of one side of each expansion block is consistent with that of the inner wall of a pipe, the other side of each expansion block is fixedly connected with the corresponding expansion adjusting rod, the other ends of the expansion adjusting rods penetrate through the machine body and are connected with the driving device, and the driving device is fixed to the machine body. Therefore, the defects that an existing beveling machine for the pipe is large in size and weight, cannot automatically center and clamp and the like are overcome. The inner supporting type pipe end face automatic welding and cutting groove machining equipment is mainly used for machining the pipe.

The invention discloses screw cap machining equipment with a lifting structure and capable of directionally moving, relates to the technical field of screw cap machining equipment, and in particular to the screw cap machining equipment with the lifting structure and capable of directionally moving. The screw cap machining equipment comprises a buffer base, a machining face board and lifting mechanisms, wherein universal wheels are arranged below the buffer base, and the two sides of the upper part of the buffer base are provided with directional transmission structures correspondingly; limiting rings are arranged between the directional transmission structures, fixing screws are installed inside the edges of the limiting rings; mounting holes are formed in the machining face board, and power transmission structures are arranged above the lifting mechanisms. According to the screw cap machining equipment with the lifting structure and capable of directionally moving, the using performance of the whole device is greatly improved while the structure is improved, the improved equipment can carry out effective lifting adjusting operation in the using process, the machining equipment canhave the directional moving capability, so that the use requirements of people are effectively met.

The invention discloses a displacement adjusting device for optical lens polishing. The displacement adjusting device comprises a machine body, wherein a first servo motor is fixed to one side of themachine body; a first lead screw is fixed to an output shaft of the first servo motor; the first lead screw is in threaded connection with a first transmission nut; the first transmission nut is embedded in a first mounting block; a workbench is fixed to the upper end of the first mounting block; first sliding blocks are arranged at two sides of the lower end of the workbench; each first sliding block slides in one first sliding groove; the first sliding grooves are formed in the upper end of the machine body; a lens placing jig is fixed to the workbench; support frames are fixed to two sidesof the machine body; a height adjusting mechanism is arranged at the upper ends of the support frames; a front-back adjusting mechanism is arranged on the height adjusting mechanism; and a grinding head body is arranged on the front-back adjusting mechanism. Through the structure, adjustment of an optical lens in the X, Y and Z directions in the polishing process is achieved, the structure is simple in structure, and operation is convenient.

The invention discloses a double-guide-rail storage tank mounting device and method, and belongs to the technical field of structure design. A storage tank is placed on L-shaped guide rails, the guide rails are fastened to a structure through fixing pieces, displacement adjustment in the longitudinal and transverse directions perpendicular to lead screws is achieved through lead screw structures, and meanwhile, displacement adjustment in the direction of the guide rails is achieved through bearing structures mounted on the storage tank. In addition, the guide rails are completely fixed through threaded rods after being adjusted in place. The storage tank mounting method is suitable for connected mounting of the storage tank and the structure in a narrow space, the position adjustment requirement during storage tank mounting is met, and meanwhile, the requirement for the mounting operation space is also met.

The invention discloses an aluminum profile processing water cooling device based on internet. The aluminum profile processing water cooling device based on the internet comprises a work board platform, a water cooling tank, a pushing mechanism, a lifting mechanism, a grab interval regulation mechanism, a grab mechanism, a smoke sucking and filtering mechanism and a sufficient water cooling mechanism, wherein a mounting port is formed in the upper end of the work board platform, the water cooling box comprises a rectangular shell and a trapezoid shell, the rectangular shell is cooperatively arranged in the mounting port in the upper end of the work board platform, and the trapezoid shell is cooperatively arranged at the bottom end of the rectangular shell. The aluminum profile processing water cooling device based on the internet can perform remote networking for data sharing and regulation, can guarantee grab reasonability of aluminum profiles, satisfies grab for various lengths of the aluminum profiles, realizes integrated operation of accurate positioning, efficient grab, conveying and immersion water cooling for the aluminum profiles, can timely suck smoke and remove the smoke,guarantees good work environment, can regulate to achieve reasonable water changing speed, guarantees that all water can fully exchange heat, and prevents the situation that the water is wasted due to insufficient heat exchange from occurring.

The invention discloses a new energy vehicle storage battery mounting box which comprises a box body. A box cover is hinged on the right side of the top end of the box body through a hinge, a spring rod is mounted at the bottom of the inner wall of the box body, one end, away from the inner wall of the box body, of the spring rod is fixedly connected with a supporting plate, the upper surface of the supporting plate is fixedly connected with a fixing block and a fixing rod which are arranged parallelly, a bottom plate is arranged on the upper surfaces of the fixing block and the fixing rod, two ends of the bottom plate are fixedly connected with rubber rings which are fixedly connected with the inner wall of the box body, a storage battery body is connected on the upper surface of the bottom plate in an overlapped manner, a storage battery is placed in the box body, clamping plates are arranged on two sides of the storage battery, arranged perpendicular to the bottom plate and fixedlyconnected with the same. By the new energy vehicle storage battery mounting box, shock resistance of the storage battery is enhanced greatly, and the storage battery can be prevented from being impacted and shaking in the box body at will, so that stability of the storage battery is improved effectively.

The invention discloses cover opening equipment for municipal construction, the cover opening equipment comprises a frame body and a plurality of rolling wheels which are arranged at the lower end ofthe frame body and are provided with brake blocks, a movable seat is arranged in the middle of the frame body, a driving assembly for driving the movable seat to move is arranged on the frame body, two connecting columns are slidably connected into the movable seat, a moving assembly for driving the connecting columns to move is arranged in the movable seat, the connecting columns are connected with fixing columns through connecting assemblies, and the fixing columns are provided with opening assemblies which are opened after being inserted into inspection well cover holes. According to the cover opening equipment, a rotating wheel is rotated to enable a lead screw to rotate, so that the movable seat moves up and down; the movable seat moves downwards to enable the opening assemblies to pass through the cover holes of an inspection well cover, and pull rods are pulled to enable long columns to move upwards, so that two rotating rods connected to the two sides of each long column are opened; the pull rods are fixed through rotating grooves, then the rotating rods are continuously opened, the movable seat moves upwards by reversing the rotating wheel, and therefore, the opening assemblies move to drive the inspection well cover to be moved upwards; and manual lifting is not needed in the whole process, and convenience and safety are achieved.

The invention discloses a material carrying operating vehicle. The material carrying operating vehicle comprises a supporting platform. A storage battery is fixedly connected to the position, close toone end, of the upper surface of the supporting platform through bolts. The periphery of the storage battery is sleeved with a bearing platform. The bottom of the bearing platform is fixedly connected with the supporting platform through bolts. The material carrying operating vehicle is provided with a motor, and the motor can effectively drive a bearing plate to rotate on a supporting base through balls by 360 degrees in the horizontal direction so that cargos can be effectively transferred from a truck. The lower portion of a base is provided with a moving device through four electric hydraulic push rods, and the moving device is connected with a horizontal hydraulic sensor for induction so that the base can conduct slope type horizontal transportation of 0-45 degrees when supported through a lifting mechanism. Accordingly, when transporting cargos through the bearing platform, the supporting platform can effectively conduct 45-degree slope type horizontal transportation and automatically adjust the carrying and supporting angle to achieve the effect of maintaining horizontal transportation all the time in the carrying process.

The invention discloses a photoelectric piezoelectric electrostatic combined drive micro-mirror fine adjustment device. The device comprises a coarse movement table; Y-direction sliding rails are symmetrically arranged on the coarse movement table; first sliding rods are arranged in the Y-direction sliding rails; the first sliding rods are in sliding connection with a Y-direction fine adjustment platform through first sliding blocks; A Y-direction adjusting mechanism is arranged below the Y-direction fine adjustment platform and located on the surface of the coarse movement table; the two endsof the Y-direction adjusting mechanism are fixedly connected to the surface of the coarse movement table through first fixing blocks; Y-direction photoelectric ceramics are symmetrically arranged below the Y-direction adjusting mechanism and located on the surface of the coarse movement table; light energy is converted into electric energy through the photo-generated voltage effect of the photoelectric ceramics; the electric energy is converted into mechanical energy through the inverse piezoelectric effect of a piezoelectric film on a piezoelectric film driver in the adjusting mechanism, sothat displacement adjustment can be achieved. The device is simple and compact, and higher in response speed.

The invention discloses a propulsion adjusting device for heavy-load equipment to enter a cabin, which comprises a cabin entering platform, in-cabin tracks and adjusting oil cylinders; the cabin entering platform comprises a machine frame, a propulsion device, a ballast trolley and out-cabin tracks, the propulsion device, the ballast trolley and the out-cabin tracks are arranged on the machine frame, and the propulsion device is connected with the ballast trolley and is connected to the out-cabin tracks in a sliding manner; the machine frame is fixedly connected with a rack parallel to the outer-cabin tracks; the propulsion device is provided with a hydraulic motor speed reducer, the output end of the propulsion device is fixedly connected with a gear meshed with the rack; and the adjusting oil cylinders comprise jacking oil cylinders and three-dimensional oil cylinders which are arranged in the cabin and used for adjusting the heavy-load equipment. The propulsion adjusting device can adjust the position of the heavy-load equipment in a limited space in the process that the large heavy-load equipment is conveyed to a cabin section, so that the heavy-load equipment is accurately installed, the installation efficiency is high, and safety and reliability are achieved.

The invention discloses an adjusting locking device. The adjusting locking device includes a pinboard, a push rod which is vertically arranged at the upper surface of the pinboard, and a support member, wherein the support member includes a vertical plate and a fixed block; an internal threaded hole is formed in the fixed block; an external screw thread is formed in the outer surface of the push rod so as to enable the push rod to be screwed with the fixed block; a ball head is formed at the upper surface of the pinboard; a threaded hole is formed in the bulb; a ball socket is formed at the lower end of the push rod; the ball head is arranged in the ball socket; one stud penetrates through the push rod and then is screwed with the threaded hole of the ball head; the upper end of the stud is screwed with first nuts; and adjusting screws which are perpendicular to the plate surface of the vertical plate are arranged on the vertical plate. The adjusting locking device can be used in a three-coordinate measuring machine, and can realize displacement adjusting of a movable part, relative to a linear guide rail slide block, in the vertical direction and the horizontal direction, so as toenable triaxial debugging of the three-coordinate measuring machine to be more accurate.

The invention discloses a cleaning instrument for treating an inner cervical tract in the obstetrics and gynecology department, and belongs to the technical field of obstetrics and gynecology departments. The cleaning instrument for treating the inner cervical tract in the obstetrics and gynecology department comprises an inserting silicone tube used for penetrating through a vaginal speculum; the inserting silicone tube comprises a tube body; an annular embedded groove is formed in the top of the tube body; an open outer ring is arranged at the top of the annular embedded groove; after a clamping piece is ejected out of a through groove, a cleaning layer is unfolded into an arc shape from an M shape; furthermore, the outer surface of the cleaning layer protrudes and can stably make contact with the inner wall of the cervix uteri; in this way, an inner channel cleaning rod can be conveniently inserted into the cervix uteri; the cleaning layers which are arranged at equal intervals can be perfectly in contact with the inner wall of the cervix uteri in the unfolding process; the purpose of real-time adjustment can be achieved according to the radial distance of the cervix uteri in the rotating process; a falling channel can be reserved in the scraping process; stickies can be rapidly discharged; and, according to the internal squamous characteristics, attachments in squamous gaps can be quickly removed.

The invention relates to a manipulator device for square bar transferring, and belongs to the field of semiconductor crystal silicon processing equipment. The manipulator device comprises a transfer frame, wherein a gripper bracket assembly is slidably connected to the transfer frame, and the lower portion of the gripper bracket assembly is slidably connected with a gripper base plate assembly; and the lower portion of the gripper base plate assembly is provided with at least one square bar clamping unit, and the square rod clamping unit is in sliding connection with the gripper base plate assembly. Position adjustment in three vertical orthogonal directions of an X-axis, a Y-axis and a Z-axis is achieved while square bars are clamped so that the square bars with different lengths and widths can be grabbed, and the manipulator device has the characteristics of high repeated positioning precision and wide application range.

The invention discloses a spinner structure, which belongs to the field of oil drilling equipment; the device includes a base body, a suspension assembly is arranged on the base body, and a support frame is arranged on the base body, and the support frame There are hooks on both sides, the hooks are provided with a rotary wheel assembly, the hooks can move along the support frame, and a driving device is also arranged between the hooks to control the displacement of the hooks; the seat The body is equipped with a guide frame, the support frame is sleeved on the guide frame, the support frame can slide up and down along the guide frame, and the two ends of the suspension assembly are assembled and connected with the guide frame and the support frame respectively; one of the present invention This kind of spinner structure can adjust the clamping distance through the hook through the driving device to solve the clamping problem of drilling tools with different diameters. Through this structure, the clamping of drilling tools with different diameters / sizes is effectively improved, and the drilling efficiency is improved effectively. The efficiency of making up and breaking down of the tool.

The invention provides equipment for adjusting displacement of a working table surface of equipment. A bridge type displacement device comprises a first fixed plate, a second fixed plate, a first guide column, a second guide column, a screw rod, a first slide block and a second slide block, wherein the two ends of the first fixed plate are fixedly connected with the two ends of the second fixed plate through the first guide column and the second guide column correspondingly; a synchronous wheel is arranged at one end of the screw rod, and the screw rod penetrates through the central hole of the first fixed plate and is connected with the center of the second fixed plate through a second fixed plate bearing; the first slide block and the second slide block are positioned between the first fixed plate and the second fixed plate; and the screw rod, the first guide column and the second guide column penetrate through the first slide block and the second slide block. The equipment has the advantages of being simple in structure, convenient to operate, firm and durable, capable of realizing short-distance displacement adjustment of the working table surface, relatively high in precision,low in cost, wide in application range and the like.

The present invention relates to a steel ball sealing mechanism used for a lithium battery liquid-injection mouth. The mechanism comprises a straight line module. A sliding table of the straight linemodule is provided with a straight line guiding rail and a positioning cylinder. The straight line guiding rail is flexibly connected with a fixing rack, and a piston rod of the positioning cylinder is connected with fixing rack. The surface of the fixing rack is fixed with a pushing rod cylinder, the bottom of the fixing rack is fixed with a positioning sealing plate, one end of the positioning sealing plate is provided with a sliding slot, and the other end of the positioning sealing plate is fixed with a shifting cylinder. The bottom of the sliding slot is provided with a sealing pushing mouth, a steel ball shifting block is arranged in the sliding slot, and the surface of the steel ball shifting block is provided with a steel ball pushing rod through hole. The mechanism integrates thefunction of conveying steel ball(s), obtaining the steel ball(s), flexible positioning and sealing and static fixing punching position. The whole mechanism has the advantages of compactness, small occupied space, flexible and convenient operation and precise positioning of the sealing position. The deformation of the battery cover surface is effectively avoided when the steel ball is punched, andthus the steel ball can be efficiently punched in the battery cover plate without rebounding.

The invention provides a smooth displacement equipment for an operation table top. The displacement equipment is used for short-distance displacement adjustment of the operation table top, wherein thedisplacement equipment has a bridge type and comprises a first fixing plate, a second fixing plate, a first guide column, a second guide column, a lead screw, a first sliding block and a second sliding block, two ends of the first fixing plate are fixedly connected with two ends of the second fixing plate through the first guide column and the second guide column; a synchronous wheel is arrangedat one end of the lead screw, the lead screw penetrates through a central hole of the first fixing plate and is connected with a center of the second fixing plate through a second fixing plate bearing; the first sliding block and the second sliding block are positioned between the first fixing plate and the second fixing plate, and the lead screw, the first guide column and the second guide columnpenetrate through the first sliding block and the second sliding block. The displacement equipment has advantages of simple structure, convenient operation, firmness and durability, capable of realizing short-distance displacement adjustment of the table top, high accuracy, low cost, wide application range and the like.

The invention discloses a throat bolt type variable thrust solid rocket engine ground testing device and belongs to the field of throat bolt engine ground testing. The throat bolt type variable thrustsolid rocket engine ground testing device comprises a driving mechanism and a simulating mechanism, wherein the driving mechanism comprises a motor fixing cover, a stepping motor, a sliding marker post, a motor fixing barrel, a movement limiting nut, a first movement transfer plate, a fastening nut, a second movement transfer plate, a first throat bolt connecting rod, a tension and pressure sensor, a second throat bolt seal ring, a displacement sensor and a movement connecting rod; the simulating mechanism comprises a front seal head, spring firmware, a left fixed barrel, a back seal head, acompression spring, a screw, a pressure sensor seat and a throat bolt. The throat bolt type variable thrust solid rocket engine ground testing device disclosed by the invention can achieve a throat bolt type variable thrust solid rocket engine ground test and has the advantages that (1) verification by tests at different thrusts and different pressures is achieved; (2) closed-loop control of the throat bolt of the engine is achieved; (3) the testing cost is low and more data is acquired; (4) the device is simple in structure and good in durability; and (5) the driving mechanism is light in weight.

The invention discloses an automatic rotary welding device for a bent pipe fitting. The automatic rotary welding device comprises a supporting mechanism, pull rod assemblies and a rotary positioning mechanism, wherein the pull rod assemblies are arranged on the supporting mechanism, and the rotary positioning mechanism is arranged between the pull rod assemblies and the supporting mechanism. The rotary positioning mechanism comprises a support, a rotary assembly, a driving assembly and a pipe fitting centering assembly, wherein the support is arranged on the supporting mechanism, the rotary assembly is rotationally connected with the support, the driving assembly is arranged on the supporting mechanism and used for driving the rotary assembly to rotate, the pipe fitting centering assemblyis arranged on the rotary assembly, and the positioning center of the pipe fitting centering assembly and the center of the rotary assembly are located on the same central axis. The device is reliableto use and convenient to operate, the specific rotary positioning mechanism is designed according to the characteristics of complex space bending of an aero-engine, the pipeline can automatically rotate when the complex space bending of the aero-engine and pipelines with different diameters are welded, manual argon arc welding is located at a flat welding position, the number of times of arc starting and stopping is one, and the welding effect is effectively improved.

The invention provides a direct contact type stretching deformation measuring system in a high-temperature oxygen-free environment, and relates to the field of stretching deformation measurement in the high-temperature oxygen-free environment. The system comprises an environment casing, a radiation furnace, stretching clamps, a stretching sample, a first extensometer water cooling box, a second extensometer water cooling box, extensometer transmission rods, a first support adjusting device, a second support adjusting devices, elastic components and foil gauges, a signal line, a first fixed plate, a second fixed plate, an aviation plug, a signal amplification converter and a display. A direct contact type measuring method can be used to transmit deformation of the sample to the elastic components accurately, and the sensitivity is higher; and the test temperature can reach 2000 DEG C, the elastic components and foil gauges are kept below 50 DEG C always, and an extensometer can be calibrated in normal temperature and used in the high temperature environment.

The invention provides operating table moving equipment with high precision. The equipment is used for short-distance displacement adjustment of an equipment working table. The operating table movingequipment with high precision comprises a first fixing plate, a second fixing plate, a first guide column, a second guide column, a screw rod, a first slide block and a second slide block, wherein thetwo ends of the first fixing plate are fixedly connected with the two ends of the second fixing plate through the first guide column and the second guide column correspondingly; one end of the screwrod is provided with a synchronous wheel, the screw rod penetrates through a central hole of the first fixing plate and is connected with the center of the second fixing plate through a second fixingplate bearing; and the first slide block and the second slide block are positioned between the first fixing plate and the second fixing plate, and the screw rod, the first guide column and the secondguide column penetrate through the first slide block and the second slide block. The equipment has the advantages of being simple in structure, convenient to operate, firm and durable, capable of realizing short-distance displacement adjustment of the working table, relatively high in precision, low in cost, wide in application range and the like.

The invention relates to a reflector antenna adjusting and positioning device and method, mainly relates to a small-caliber reflector antenna high-precision, high-efficiency, unstressed adjusting and positioning device and technological method, and belongs to the technical field of antenna assembling and calibrating, wherein the small caliber is the caliber of a reflector antenna and is not larger than 1 m. The adjusting and positioning device performs sub-reflector three-displacement and three-rotating-angle adjusting and positioning, solves the problems that during sub-reflector installation, positioning is not accurate, efficiency is low, the installation stability is poor and installation internal stress is prevented from being generated, and effectively improves the sub-reflector adjusting and positioning precision and efficiency.

The invention relates to a similar simulation test device with controllable loading and adjustable size, comprising a device frame, a left baffle, a right loading plate, an upper loading plate, a front baffle and a rear baffle; It is vertically arranged inside the left column of the device frame, and its lower end penetrates the base of the device frame downwards, and can slide up and down relative to the base; the right loading plate is vertically arranged inside the right column of the device frame along the front and rear direction, A horizontal loading device connected to the right loading plate is installed on the right column; the upper loading plate is horizontally arranged in the device frame near the top beam along the left and right directions, and the device frame is equipped with a moving mechanism, which is connected with the upper loading plate. The plate is connected by transmission; the top beam is equipped with a vertical loading device; the front baffle and the rear baffle are respectively installed on the front and rear sides of the device frame by sliding up and down. Advantages: It can realize the controllable vertical and horizontal loading of similar models, the size of the pouring area of ​​similar models can be adjusted, and the operation is convenient.