31results about How to "Small center of gravity offset" patented technology

The present invention discloses a composition method of a gantry four-dimensional automatic measurement platform for detecting photochromic performance of display screens and a gantry four-dimensional automatic measurement platform using the method. The present invention relates to the automatic measuring technology of the photochromic performance of display screens, and comprises a platform base, a gantry frame, an X-axis moving mechanism, a Y-axis moving mechanism, a Z-axis lifting mechanism, and a display screen-carrying rotating platform. By moving the mechanisms to control the circuit, the four-dimensional automatic measurement platform for detecting photochromic performance of display screens is flexibly controlled to accomplish the three-dimensional move of the photochromic measuring instrument and the accurate one-dimensional rotation of the display screen to be measured, the present invention is characterized in stable movement of the photochromic measuring instrument, small rotation radium of the display screen, novel structure, small driving power needed, small size, light weight, low cost, rapid measuring speed, high reliability and so on. The present invention can be widely applied to the photochromic automatic detecting system of LCD or LED television screen, display screen, or mobile phone screen and so on, and the present invention can precisely adjust the coordinate position of the test points and the angle of the display screen intelligently according to the detecting requirement of photochromic performance of the display screens under the computer management, and rapidly accomplish the detection of photochromic performance.

A method for trimming the feed amount of a boring cutter features that when the tip of a boring cutter is revolving around the axis of its handle by an eccentric distance, the revolving diameter of said tip can be changed relatively to the axis of handle while the value of changed diameter can be precisely prompted. Its trimming unit has a cutter handle with a conic hole whose axis is shifted from the axis of handle, a rotary body in said conic hole and with another conic hole, an exchangeable arbor installed in said another conic hole and with a cutter, and a worm-gear driver mechanism installed on handle for driving arbor to rotate.

The invention discloses a climbing robot of an electric power steel tube pole tower, and belongs to the technical field of robots. The climbing robot of the electric power steel tube pole tower comprises two machine bases which are connected by a crankshaft connecting rod system and a guide rod. The bottom of each of the machine bases is provided with an adsorption foot frame. The adsorption footframe comprises a support frame and an electromagnet sucker. The top of the support frame is connected with the machine base through a telescoping mechanism, and the bottom of the support frame is connected with the electromagnet sucker. The climbing robot of the electric power steel tube pole tower is capable of adsorbing and climbing by using a moving mode of the linear guide rod type and usingthe electromagnet sucker, simple in whole control, and faster in moving speed. In a moving process, the center-of-gravity shift of the whole climbing robot is small, and the movement is stable. Whilethe climbing robot loaded with a heavy object is moved, the impact of the heavy object to the climbing robot is smaller, and the climbing robot has the good stability.

The invention discloses a dual-motor transverse gear-shiftable electric drive axle speed reducer assembly which comprises two motors, two gear-shifting assemblies, a planetary reduction gear assemblyand a differential mechanism assembly. The gear-shifting assemblies include a first shaft assembly and a second shaft assembly. The motors are connected with the first shaft assembly. High-speed and low-speed two-gear speed regulation is realized through a sliding meshing assembly on the first shaft assembly. The second shaft assembly is in transmission with a sun wheel axle of the planetary reduction gear assembly through a long meshing gear set. A planet carrier of the planetary reduction gear assembly is connected with a differential mechanism inner shell of the differential mechanism assembly through a planet pinion shaft. A gear ring is connected with a differential mechanism shell. The dual-motor transverse gear-shiftable electric drive axle speed reducer assembly is compact in structure, high in integrity, low in machining difficulty and light in weight.

The invention discloses an armature rotor core of a four-pole direct current permanent magnet motor and a manufacturing process for the same. The armature rotor core comprises a rotor core body, wherein the rotor core body has a hollow structure in which a resin insulating medium is injection-molded and filled. The armature rotor core of the four-pole direct current permanent magnet motor adopts fewer core metals, ensures relatively lower copper loss and iron loss, has the characteristics of high efficiency, light weight, low rotational inertia, high reliability and low cost, can improve electric energy conversion efficiency, improve the distribution of magnetic lines of force, enhance magnetic density and improve the overall electrical properties of the motor, and is an upgraded product of the conventional direct current permanent magnet motor. The manufacturing process for the armature rotor core is simple, and a plurality of manufacturing steps are saved.

The invention relates to an auxiliary welding device of a crawling welding robot, a control method and a welding method of the auxiliary welding device. The welding device comprises a crank arm type lifting mechanism assembly for controlling an operation room to flexibly move to the surface and the periphery of any operation position of a large component, the crawling welding robot is arranged in the operation room, and whole machine electric control equipment and peripheral equipment are arranged in the operation room; and the crank arm type lifting mechanism assembly comprises a combined general control operation table and a crank arm lifting mechanism which are arranged on a carrying tool. The crank arm lifting mechanism is rigidly connected with the tail end operation room by adopting a three-section hydraulic folding type working arm; the crank arm lifting mechanism comprises a welding operation arm pivoted to the combined general control operation table through a first pivot and a first crank arm pivoted to the end of one end of the welding operation arm through a second pivot; and each crank arm is driven by a cylinder.

The invention relates to the technical field of lifting tools, and discloses an adjustable arc gate leaf large-piece assembly device and an assembly method thereof. The adjustable arc gate leaf large-piece assembly device comprises a hinge seat, a gate leaf bearing and gate leaf adjusting rods; the hinge seat is hinged to the tail end of an arc gate support arm; a gate leaf is vertically arranged in the adjustable arc gate leaf large-piece assembly device; the gate leaf bearing is hinged to the bottom of the gate leaf; and one end of each gate leaf adjusting rod is hinged to the middle part of the gate leaf, and the other end of the corresponding gate leaf adjusting rod is hinged to a fixed bearing. The adjustable arc gate leaf large-piece assembly device locates accurately and is high in operability, the labor intensity is reduced, a production cycle is shortened, and mass production can be completed by once tooling, since during design of the adjustable arc gate leaf large-piece assembly device and the assembly method, a factor of space operation is considered fully, fixed rotating hinge points are arranged, the gate leaf is provided with adjusting rod pieces, left and right adjustment of the gate leaf is facilitated, the gate leaf is hoisted at one time, a tool platform is hoisted down after the large-piece assembly is completed, and hoisting and debugging workloads are reduced.

The invention relates to the technical field of assembled computers, and discloses an assembly for preventing gravity center shift of an assembled graphics card for high-end manufacturing and assembling of a computer. The assembly comprises a gravity center stabilizing mechanism, the middle end of the interior of the gravity center stabilizing mechanism is fixedly connected with a slot, and the upper and lower sides of the slot are movably connected with clamping plates. According to the assembly for preventing the gravity center shift of the assembled graphics card for the high-end manufacturing and assembling computer, the graphics card is inserted into the slot, so that when the graphics card is inserted, the graphics card pushes an inner hole block and a wind shield to shift outwards, and then the wind shield pushes a gap plate and an opening inclined rod to move outwards; and the opening inclined rod drives the inner pressing folded plate to extrude the static compression block to discharge the electricity removing agent, so that the electricity removing agent in the static compression block is transmitted into the slot through the embedded pipe and the inner hole block, the static electricity in the slot is eliminated, the mounting static electricity of the display card is eliminated, and the anti-static capability of the display card is improved.

The invention discloses an electronic device which comprises a fixed support, a first telescopic support, a second telescopic support and a flexible screen, wherein the first telescopic support and the second telescopic support are symmetrically arranged relative to the fixed support; the first end of the flexible screen is connected with the first telescopic support; the second end of the flexible screen is connected with the second telescopic support; and the first telescopic support and the second telescopic support can do telescopic motion relative to the fixed support at the same time so that the flexible screen can be switched between a retracted state and an unfolded state. According to the electronic device provided by the embodiment of the invention, the holding effect of the electronic device can be improved, and the holding comfort of a user on the electronic device is improved.

The invention discloses an adjustable moving transport cart capable of achieving lifting. A fixing base is included. A supporting plate is arranged at the bottom end of the fixing base. A plurality ofsupporting rods are arranged between the supporting plate and the fixing base. Cross grain fixing rings are arranged between the top ends of the supporting rods and the fixing base. A moving transmission device is arranged at the top end of the supporting plate. A motor matched with the moving transmission device is arranged at the middle position of the top end of the moving transmission device.Moving wheels matched with the moving transmission device are arranged on the two sides of the moving transmission device correspondingly. A sliding block is arranged on one side of the top end of the fixing base and internally provided with a sliding groove. A moving block matched with the sliding groove is arranged in the sliding groove. A matched moving rod is arranged at the top end of the moving block. A rotation shaft is arranged between the moving rod and the sliding block. The adjustable moving transport cart has the beneficial effects that through the arrangement of the fixing base,a swinging limiting mechanism, the moving transmission device, the moving wheels and an adjusting base, more convenient adjustment of the lifting height, position, direction and the like during operation is achieved, and control is easy in the aspect of speed.

The invention discloses a backpacking type oil transportation device which comprises support rods, a backpacking frame and a bag body. The backpacking frame comprises shoulder straps, a backpacking support board and a waistband support from top to bottom, wherein, the shoulder straps, the backpacking support board and the waistband support are mutually connected. The backpacking support board is provided with a first fixing device. The waistband support is provided with a second fixing device. The bag body is provided with a third fixing device and the support rods fix the bag body on the backpacking frame through the fixing devices. A single person can shoulder the backpacking type oil transportation device to transport oil urgently to areas with inconvenient traffic.