33results about How to "Realize synchronous scaling" patented technology

The invention discloses a multifunctional lifting teaching blackboard, which comprises a base, a support column and a blackboard body; the support columns are symmetrically fixed on both sides of the base, the support columns include a first support column and a second support column, and the The support column is inserted in the first support column and can move up and down; a drive chamber is connected between the first support columns on both sides, and a transmission mechanism is provided in the drive room to drive the second support columns on both sides to move synchronously; the blackboard body The connecting block is fixed between the second connecting columns on both sides. The blackboard body is provided with a shielding sheet placement frame that can move in all directions, and the shielding sheet placement frame is made of transparent material; the bottom of the blackboard body is fixed with an ash collecting tank. The invention can realize the synchronous contraction of the supporting columns on both sides of the blackboard, and at the same time, it is provided with an ash collecting tank to protect the environment; it can also assist the memorization of English words.

The invention discloses a device and a method for closure construction of a girder side span of a cable-stayed bridge and relates to the field of construction of cable-stayed bridges. The device comprises a cable drawing hanging basket, a pier top support system and a cantilever outrigger, wherein the cable drawing hanging basket is arranged at the bottom of a cast girder, the pier top support system is arranged at the top of a side span closure section pier, and the cantilever outrigger is arranged at the top of the cast girder and above the pier top support system and the cable drawing hanging basket. The cable drawing hanging basket comprises two arc-shaped heads, and a transverse limit fixed pulley is welded on the outer side of each arc-shaped head and fixed on the outer side of the side span closure pier. The pier top support system comprises a first support, a second support, a plurality of first sand boxes and second sand boxes at the top of the side span closure section pier, and the outer portions of the first support and the second support are sleeved with support cover plates. The cast-in-situ section and the cast girder body are freely and synchronously telescopic, and construction cost is reduced.

The invention discloses a diffusion welding device based on the independent control of a local weldment environment temperature. The device is sequentially provided with a pressure control device, a pressure head, an upper insulated cushion block, an upper electrode pressure lever, a lower electrode pressure lever, a lower insulated cushion block and a support table from top to bottom, wherein weldments are arranged between the upper electrode pressure lever and the lower electrode pressure lever, and the weldments are sequentially a metal workpiece, an interlayer and a non-metal workpiece or a non-metal workpiece, an interlayer and a metal workpiece from top to bottom and also comprise a first graphite heater, a metal environment temperature measuring and controlling device, a first graphite heater power source, a second graphite heater, a second graphite heater power source and a non-metal environment temperature measuring and controlling device. The invention also discloses a diffusion welding method based on the independent control of the local weldment environment temperature. According to the device and the method disclosed by the invention, the diffusion welding temperature can be effectively reduced, and the synchronous telescoping of the non-metal workpiece and the metal workpiece in a diffusion welding process is realized.

The invention discloses a telescopic device of an arm frame. The arm frame comprises a first knuckle arm (1), a second knuckle arm (2) and a third knuckle arm (3); the telescopic device of the arm frame comprises multi-level telescopic hydraulic cylinders, a first guide pulley (10), a first guide element (11), a second guide pulley (18) and a second guide element (17), wherein the multi-level telescopic hydraulic cylinders is used for stretching the knuckle arms of the arm frame; the first guide element (11) is wound on the first guide pulley (10); the second guide element (17) is wound on the second guide pulley (18); in addition, the invention further discloses the arm frame and engineering machinery. According to the telescopic device of the arm frame, because the multi-level telescopic hydraulic cylinders are adopted to drive a plurality of knuckle arms simultaneously, and the guide pulleys and the guide elements enabling the telescopic speeds of the knuckle arms to be consistent are mounted on the knuckle arms, and the synchronization telescope of the knuckle arms of the arm frame can be achieved.

The invention provides a telescopic arm device and an automobile crane. The telescopic arm device comprises a first section arm, as well as a second section arm, a third section arm, a fourth section arm, a fifth section arm and a sixth section arm which are sequentially arranged in the first section arm in a sleeving manner, and further comprises a first telescopic cylinder, a first expansion arm wheel, a first expansion arm stay rope, a second telescopic cylinder, a second expansion arm wheel, a second expansion arm stay rope, a first contraction arm wheel and a first contraction arm guy rope, wherein a third telescopic arm wheel is mounted at the tail part of the fifth section arm; a fourth telescopic arm wheel is mounted at the root part of the sixth section arm; one end of the third telescopic arm stay rope is connected with the root part of the third section arm; the third telescopic arm wheel and the fourth telescopic arm wheel are sequentially arranged in the middle of the third telescopic arm stay rope in a surrounding manner; the other end of the third telescopic arm stay rope is connected with the tail part of the fifth section arm; a second contraction arm wheel is mounted at the tail part of the third section arm; a third contraction arm wheel is mounted at the root part of the fourth section arm; one end of a second contraction arm stay rope is connected with the root part of the fourth section arm; the second contraction arm wheel and the third contraction arm wheel are sequentially arranged in the middle of the second contraction arm stay rope in a surrounding manner; and the other end of the second contraction arm stay rope is connected with the sixth section arm. The telescopic arm device is compact in structure and easy to assemble.

The invention provides a hydraulic manned device for spherical tank internal inspection, which belongs to the technical field of industrial special inspection equipment. Such device comprises longitudinal hydraulic telescopic arms, lateral hydraulic telescopic arms, connecting arms, a manned basket, a hydraulic station, a longitudinal rotational mechanism, and a hydraulic winch in the spherical tank. The longitudinal/transverse hydraulic telescopic arms are provide with a hydraulic cylinders and sprocket chain in the arms to stretch and compress multi-section hydraulic arms in synchronization.The longitudinal slewing mechanism drives the lateral hydraulic telescopic arms to rotate 360 degrees circumferentially by the upper connecting arms, the longitudinal hydraulic telescopic arms, and the connecting arms. The hydraulic winch makes the lateral hydraulic telescopic arms and the connecting arms to rotate 180 degrees around the hinge by retracting the wire rope through wire rope connected to the manned basket and a guide wheel in the upper connecting arm. According to the hydraulic manned device for spherical tank internal inspection, the detection device can realize lateral, longitudinal multi-directional and large-area inspection work in the spherical tank. Moreover, the installation is simple, the use is convenient, the internal safety inspection of the spherical tank is improved, and the work efficiency is also improved.

The invention discloses a shear type gripper which comprises a clamping ring capable of achieving synchronous stretching and contracting and a drive assembly. The drive assembly drives the clamping ring to achieve synchronous stretching and contracting. The clamping ring is of a ring-shaped structure formed by connecting multiple shear type units end to end through connecting rotating shafts end to end. Each shear type unit is of an X-shaped structure composed of connecting rods and a shear type rotating shaft, wherein the middle portions of the two connecting rods are hinged to each other through the shear type rotating shaft, and the two ends of the connecting rods are hinged to the connecting rods at the corresponding positions in the adjacent shear type units through the corresponding connecting rotating shafts. The drive assembly is of an X-shaped structure composed of drive rods and a drive rotating shaft, wherein the two drive rods rotate around the drive rotating shaft, and one ends of the two drive rods are hinged to the two connecting rods of the same shear type unit.

The invention provides a material transport vehicle. The material transport vehicle is provided with a three-stage telescopic arm. The telescopic arm is provided with a conveying belt deviation correction device. The three-stage telescopic arm is matched with chains through a set of drive wheels. Synchronous stretching-out and drawing-back of a two-stage telescopic arm body can be completed by just one power supply device. According to the deviation correction device, whether off tracking of a belt exists or not is judged according to the stress condition of the two sides of a belt, and thus the position of the belt is adjusted.

The invention relates to a beam-rail integrated telescopic device of a large-span railway steel bridge and a design method of the beam-rail integrated telescopic device, and belongs to the technical field of railway bridge telescopic devices. The beam-rail integrated telescopic device comprises a movable end displacement box, a fixed end displacement box, a supporting beam, fixed steel sleepers, movable steel sleepers and a connecting rod system. A stock rail of a steel rail telescopic adjuster is connected with the fixed steel sleepers above the movable end displacement box, the fixed steel sleepers above the fixed end displacement box, the movable steel sleepers and concrete sleepers on a main bridge and an approach bridge through different fasteners. The telescopic device can meet the requirement for vertical supporting rigidity, the longitudinal telescopic resistance of the beam end telescopic device can be obviously reduced, and the common splayed defect of the movable steel sleeper is avoided. The invention further provides a design method of the beam-rail integrated telescopic device based on the performance, and the problems that in the prior art, a beam end telescopic device and a steel rail telescopic adjuster are specially and independently designed through a bridge and a rail, and consequently connector fastener design is unreasonable are solved.

The invention discloses a steel strength detection device based on building detection, relates to the technical field of inspection and detection, and solves the problems that an existing fatigue strength detection device can only detect the swing fatigue strength of a part, and is poor in torsional fatigue strength detection effect, the detection strength in use cannot be well adjusted, the device is inconvenient to use and the detection range is limited. The detection device comprises a mounting base, the right side of the mounting base is fixedly connected with a group of torsion clamp sliding driving pieces; and the left side of the mounting base is fixedly connected with a group of rigid fixing clamps. According to the invention, the torsional fatigue strength of a part can be tested,the swing fatigue strength of the part can also be tested, the applicability is good, the universal effect is good, and the lifting of the lifting mounting seat and the stretching of the telescopic test arm are synchronously carried out, so that the rapid adjustment of the detection rotation diameter is realized. The adjusting speed is high, using is easy, and operation is convenient.

A sliding type vehicle body welding positioning pin working table comprises positioning pins, a driving mechanism and a movable working table, the driving mechanism is arranged on a fixed working table, the movable working table is arranged on the fixed working table in a sliding mode, a plurality of positioning pins are arranged on the movable working table, the movable working table is connected with the driving mechanism, and the driving mechanism drives the movable working table to act. The positioning pins are inserted into or withdrawn from the corresponding sheet metal part positioning holes; a movable block is arranged on the movable workbench, a limiting block is arranged at each of the two ends of the moving path of the movable block on the fixed workbench, the moving range of the movable block is located between the two limiting blocks, and a position inductive sensor is arranged beside each limiting block. And the position inductive sensor at the corresponding position sends out a signal to maintain the driving mechanism at the position, so that the positioning pin is maintained in a state of being inserted into the positioning hole of the sheet metal part or being far away from the position of the sheet metal part. According to the invention, synchronous telescoping of a plurality of positioning pins is realized.

The invention relates to a three-shaft telescopic multi- adaptability underwater robot which comprises a box body support, a telescoping mechanism and a power mechanism. A box body is sealed and waterproof and is used for enabling a carrying mechanism to be placed and providing telescopic spaces for power arms, the telescoping mechanism is connected with three driven gears through a gear rack, the driven gear drives a lead screw to rotate and control stretching-out and drawing-back of the lead screw, synchronization stretching-out and drawing-back of three power arms of the robot can be achieved, the self size is changed according to the environment, running work is freer, the power mechanism is composed of the three power arms, the axial directions of screw propellers at the arm ends can be changed, and motion of space six degrees of freedom can be achieved through rotating speed of the three screw propellers and axial matching of the screw propellers. According to the three-shaft telescopic multi- adaptability underwater robot, a telescoping device of the power arms is designed, the robot has good practicality in the fields of sunken ship archaeology and deep sea excavation, cultural relics are protected, meanwhile, the running work is freer, and efficiency is higher.

The invention discloses a drill rod straightness detection device and method. The device comprises a first supporting mechanism, a second supporting mechanism and a detection mechanism; wherein the second supporting mechanism is connected with the first supporting mechanism, is supported by the first supporting mechanism and is used for supporting a drill rod to be tested; the detection mechanism comprises a driving unit and a spatial position information acquisition unit; the driving unit drives the spatial position information acquisition unit to rotate; the spatial position information acquisition unit is used for being in contact with a to-be-detected drill rod and acquiring spatial position information of the to-be-detected drill rod in real time. According to the invention, the straightness of the drill rod with the key bar can be conveniently, accurately and quickly detected in the production process, so that the device and method has important significance for improving the processing quality and the process of the drill rod.

The invention relates to the technical field of crane booms, and discloses a double-lever seven-section telescopic boom of a crane. The double-lever seven-section telescopic boom comprises a telescopic coil cylinder I, a telescopic oil cylinder II, a one-section arm, a two-section arm, a three-section arm, a four-section arm, a five-section arm, a six-section arm, a seven-section arm, a four-section arm extending arm rope row, a four-section arm extending arm slide wheel group, a five-section arm extending arm rope row, a five-section arm extending arm slide wheel, a six-section arm extendingarm rope row, a six-section arm extending arm slide wheel group, a seven-section arm extending arm rope row, a seven-section arm extending arm slide wheel group, a seven-section arm retracting arm rope row, a six-section arm retracting arm rope row, a six-section arm retracting arm slide wheel group, a five-section arm retracting arm rope row, a five-section arm retracting arm slide wheel group, afour-section retracting arm rope row, and a four-section arm retracting arm slide wheel group. The double-level seven-section telescopic boom realizes synchronous extension and retraction of a seven-section boom assembly, is high in extension and retraction speed, has arm length up to 50 meters, has many arm length working conditions, is high in working efficiency, is low in processing and controlling technical difficulty, and improves operating height and operating amplitude of a medium-small-tonnage crane.

The invention discloses a detachable and reinforced lock body structure of a multi-directional bolt for an intelligent electronic lock. The structure comprises an electronic lock main body, exposed housings, handles, a small motor and a bevel gear, the exposed housings are inlaid on the front and back sides of the electronic lock main body, the handles are installed on the surfaces of the exposedhousings, a first stopper block penetrates through the left end of the electronic lock main body, a mounting plate is inlaid at the right end of the first stopper block, a cavity is arranged outside the mounting plate, and the cavity is arranged on the inner part of the electronic lock main body. The detachable and reinforced lock body structure of the multi-directional bolt for the intelligent electronic lock is provided with a second stopper block and a movable block, the second stopper block can be used to latch in the upper and lower directions, so that a device can have a better locking effect, at the same time, the second stopper block is connected with the movable block through a connecting rod, the connecting rod can be rotated to release the threaded connection with the movable block, and is disassembled from the movable block, so that the second stopper block is facilitated to be installed on the inner part of a door panel subsequently.

The invention discloses an aircraft system with a stretching function. The aircraft system comprises an aircraft body, propellers and telescopic wings, and at least two propellers are arranged on theaircraft body and symmetrically arranged on the two sides of the aircraft body; each propeller is connected with a speed reducer through an angle adjusting rotary shaft, the speed reducers are arranged in the positions, corresponding to the propellers, in the aircraft body and are in transmission connection with motors, the angle adjusting rotary shafts are driven by the motors through the speed reducers to rotate, and therefore the propelling angles of the propellers are adjusted; and universal joints are arranged on the middle portions of the angle adjusting rotary shafts, the front ends ofthe angle adjusting rotary shafts are sleeved with rotary shaft sleeves, propeller telescopic cylinders are arranged in the positions, corresponding to the horizontal sides of the angle adjusting rotary shafts, on the aircraft body, propeller telescopic arms of the propeller telescopic cylinders are connected with the rotary shaft sleeves, the propellers are driven by the propeller telescopic armsof the propeller telescopic cylinders to rotate left and right around the universal joints, and therefore the expanding angles of the propellers are adjusted. Each of the two sides of the aircraft body is provided with one telescopic wing, and at least two wing telescopic cylinders are arranged in each telescopic wing.