441results about How to "Guaranteed level status" patented technology

The invention relates to coal mine synthesizing exploiting caving top coal technique. Electro-hydraulic control caving top coal method is adopted hydraulic support to finish support caving top coal each procedure. The hydraulic support is made up of low order caving top coal hydraulic support and electro-hydraulic control system. In the electro-hydraulic control system, top beam incline sensor is added. The flash board jack is adopted travel sensor. The length of the flash board is increased, and the size of the coal discharging is adjusted in order to keep top beam horizontal and increase supporting stability. The coal discharging method includes the following steps: top coal sufficient crashing: adopting single sequence sublevel discharging; top coal middling crashing: adopting the same; top coal difficult crashing: adopting double sequence sublevel discharging. The invention can increase coal discharging control type, improve caving top coal technique adaptability, and realize high yield and high efficiency.

The invention relates to an automatic leveling device and an automatic leveling method. The automatic leveling device comprises a horizontal detection module, a processing module, and a regulating module. The horizontal detection module is arranged on an object platform and is used for detecting the horizontal offset of the object platform in real time and generating electric signals; the processing module is connected with the horizontal detection module and is used for processing the electric signals and generating a driving control signal; and the regulating module is connected with the processing module and is used for performing horizontal regulation according to the driving control signal. By detecting the horizontal offset condition of the object platform in real time and according to the inclination of the object platform, the automatic leveling device and the automatic leveling method generate the corresponding driving control signal and dynamically regulate the object platform. Therefore, the object platform is always positioned in the horizontal state.

The invention discloses a manufacturing and mounting method for the foundation of a total-gyration rudder propeller. The method is as follows: a pre-processed steel plate is cut into four pieces of sector-shaped rings of the same size and a welding groove is cut; then a base faceplate is formed and after being annealed the base faceplate is planished with mechanical tools; after testing, the front, back, left and right marks are marked; the upper and lower sections and inner and outer circles of the base faceplate are processed; the scale is removed and the requirement by drawing is satisfied and a seam position should be taken into account simultaneously; after the size is checked, templates are fixed on the base faceplate according to the marks on the faceplate for drilling and facing; just two welding seams are welded on the base faceplate and the inner and outer sides of the left and right base cylinder to avoid full welding; the base is lifted before the total closing of a stern and is positioned well and reinforced after the total closing of the stern; and the level is checked once when one welding seam is welded till the final welding seam is completed in the welding process. The invention adopts the section blanking to displace the integral blanking so as to conserve the material cost and simultaneously overcome the technical problems of the focused stress in the base processing and manufacturing process, the welding distortion, etc..

The invention designs a layered hoisting construction process for a suspended steel structure, comprising a truss structure and a spherical pod structure in a space structure below a truss. The layered hoisting construction process is characterized by comprising the following steps of: erecting a high-altitude temporary support moulding bed on the ground of the space structure below the truss; mounting a pod structure on the temporary support moulding bed by using a high-altitude spread method; tensioning a high-strength span wire; mounting the pod structure to be in place and then mounting and tensioning the high-strength span wire; dividing the whole tensioning process into three phases, namely initial pre-tightening and tensioning before unloading a temporary support, tensioning after mounting and unloading the structure and tensioning after mounting a permanent load to be in place, for construction; and downwards staying the pod structure by using a stabilization cable. The invention has the advantages that the suspended steel structure is mounted by adopting a method for erecting a layered separate temporary support system and the problems of positioning of the structure space and the structure stabilization in the mounting process are solved.

The invention relates to a rock micromechanics testing device and in particular relates to a rock biaxial compression micromechanics testing device under stress-water current-chemical coupling actions, belonging to instruments and equipment. A lateral loading shaft is additionally arranged in the testing device, so that the loading mode of uniaxial compression in the existing testing device is improved. A vertical partition plate is additionally arranged in a box body and divides the box body into two independent parts, wherein one part serves as a test chamber for testing, and the other part serves as a working chamber for lateral loading. A water inlet and a water outlet are matched with the test chamber and can control a stable water current to be formed in the test chamber. The height of the box body can be adjusted by additionally arranging horizontal adjusting bolts to ensure that the box body is always in a horizontal state. The device can achieve biaxial compression loading on rock samples and control the flow velocity of chemical solutions so as to achieve biaxial compression tests on rocks under the condition of actions of different chemical solutions, is reasonable in design, is convenient to operate and use, and is suitable for biaxial compression tests of various rocks under stress-water current-chemical coupling actions.

The invention discloses an automatic leveling system of a load platform of a platform-type crawler climbing vehicle, comprising a load platform and a chassis, wherein one side of the load platform isrotatably connected with one side of the chassis; The automatic leveling system also comprises a driving device and a control device. A drive device is arranged between the load platform and the chassis to drive the load platform to rotate so as to form an included angle between the load platform and the chassis; The control device includes an inclination detection module for detecting an inclination angle between the load platform and the horizontal plane. The control device controls the driving device to drive the platform to rotate according to the inclination angle so as to make the inclination angle approach to zero degree so as to change the included angle, thereby controlling the platform to keep the horizontal state. The control device controls the driving device to rotate according to the inclination angle so as to make the inclination angle approach to zero degree so as to change the included angle. In the process of climbing or downhill, the platform can make real-time adjustments, to a certain extent, the platform has always maintained a horizontal state, the whole process uses closed-loop control, real-time monitoring and adjustment of the position of the platform.

The invention discloses a hole site measuring device which comprises a base. The base is provided with a cylindrical sliding part, and a positioning column which can slide up and down is plugged in a center hole of the sliding part. The base is further horizontally provided with two slideable sliding pillars which are perpendicular to each other, and each sliding pillar is provided with a plane end which makes contact with the outer circumferential wall of the sliding part and is tangent to the outer circumferential wall of the sliding part. The base is further provided with springs and dial indicators. The sliding part is provided with a circular upper portion flange, the base is provided with a detachable V-shaped adjusting block, and after the V-shaped adjusting block and the upper portion flange are connected in a clamped mode, the dial indicators are in zero setting. According to the hole site measuring device, the dial indicators can be used for accurately measuring the displacement of the sliding pillars, and thus the deviation of a positioning hole can be accurately measured; an inverted cone is arranged on the lower portion of the positioning column, and the positioning column can be rapidly positioned on the measured positioning hole. The hole site measuring device is suitable for automobile-manufacturing enterprises, and positive numbers are used for measuring the deviation of the positioning hole of an auxiliary frame.

The invention discloses a heavy truck fuel tank oil shaking characteristic testing device and method, and belongs to the technical field of oil tank testing. The device comprises a power unit and a test piece connecting unit, the power unit comprises a bottom frame and a driver, the bottom frame is fixedly arranged on the ground, the driver is installed on the bottom frame, and a reciprocating transmission mechanism is arranged at the output end of the driver; the test piece connecting unit comprises a sliding bracket, a fixed bracket and an oil tank connecting piece; the sliding support is slidably arranged on the bottom frame, the sliding bracket is movably connected with the reciprocating transmission mechanism; first hinge supports are fixedly connected to the middle positions of the front side and the rear side of the sliding bracket, second hinge supports are fixedly connected to the middle positions of the front side and the rear side of the fixed bracket, the two second hinge supports and the corresponding first hinge supports are jointly connected with connecting pins, an elastic buffer structure is connected between the fixed bracket and the sliding bracket, and the oil tank connecting piece is fixedly installed on the fixed bracket. The motion condition of the fuel tank of the heavy truck is truly simulated, and a positive effect is achieved for the structural improvement or research and development of the fuel tank.

The invention discloses a postoperation nursing bed and relates to a medical device. The postoperation nursing bed comprises a bed frame, a bed board and an adjusting mechanism, wherein the bed board is formed by hinging a first bed board to a second bed board; the adjusting mechanism comprises driving motors, a control part, an adjusting part, a first supporting part and a second supporting part, and the first supporting part and the second supporting part are symmetrically arranged along the center of a door board; the adjusting part comprises an adjusting shell body, a first bevel gear which is rotatably connected with the adjusting shell body, a second bevel gear and a middle bevel gear, wherein the first bevel gear and the second bevel gear are meshed with the middle bevel gear. The first supporting part and the second supporting part control free ends of the first bed board and the second bed board to go up and down respectively, the first supporting part and the second supporting part are driven by the first bevel gear and the second bevel gear respectively, through the control over the running resistance of the second bevel gear, the speed ratio of the first bevel gear to the second bevel gear can be changed, and the bed board can be presented with different states.

The invention discloses a papermaking device for rice paper production. The papermaking device comprises a papermaking plate, a vibrating device and a control unit, wherein the edges of the papermaking plate are provided with a frame; the control unit comprises a swinging arm and connecting devices; each connecting device comprises a supporting rod, a first air cylinder and a telescopic connecting rod; two ends of the connecting rods are respectively connected to the swinging arm and the first air cylinders; piston rods of the first air cylinders are hinged to the edges of the papermaking plate; sliding grooves are formed in the papermaking plate; one end of each supporting rod is connected into the corresponding sliding groove in a sliding way; the other end of each supporting rod is hinged to the corresponding connecting rod; the piston rod of the first air cylinder and the supporting rod are symmetrically arranged at the same edge of the papermaking plate along the center line of the papermaking plate; the length of each supporting rod is equal to the total sum of the length of each connecting rod under a hinging point of the connecting rod and the length of each first air cylinder; the vibrating device comprises a vibrator and a control device; the vibrator is arranged on the papermaking plate. By implementing the scheme, the problem in an existing papermaking technology that the rice paper is not high in quality or high in cost is solved.

The invention discloses a walkable scaffold. The walkable scaffold comprises walking wheels, supporting legs and a movable platform. The supporting legs on the same side are fixedly connected through supporting leg connecting rods. The walkable scaffold is characterized in that the movable platform comprises a left pedal and a right pedal, the left pedal and the right pedal are movably linked through a middle pedal rotating shaft and can be turned over upwards around the pedal rotating shaft, the ends of the pedal rotating shaft are fixedly provided with upward stand columns, the stand columns are directly or indirectly fixed to the supporting legs, seat plates are arranged at the upper ends of the stand columns, a spring is installed on the right pedal, the upper end of the spring is fixed to a stand column or a fixing piece above the stand column, the walking supporting legs capable of swinging left and right are connected to the portion below the right pedal through pin shafts, and a pedal switch is further arranged on the right pedal. The walkable scaffold has the advantages of being simple and light in structure, free of power consumption, capable of walking conveniently and flexibly, capable of being folded, convenient to carry, transport and store, low in manufacturing cost, and mainly applicable to various working places for decoration and equipment maintenance where climbing is needed and positions need to be moved constantly.

The invention discloses a transformable-crawler suspension bracket. The transformable-crawler suspension bracket comprises a middle linkage rack, two transformable crawler units and a transformation driving assembly, wherein the transformable crawler units are connected with the middle linkage rack, and are symmetrically arranged; a transformable crawler rack of each transformable crawler unit is a six-rod mechanism, and comprises a four-rod motion chain and at least four crawler wheels; the crawler wheels of each transformable crawler rack comprise a driving wheel and turning wheels; the crawler wheels are connected with rotating pairs of the corresponding four-rod motion chain, and rods of the rotating pairs; a crawler wraps the corresponding crawler wheels; a crawler driving assembly drives the driving wheels, and the crawlers are driven to rotate; the transformation driving assembly is connected with the transformable crawler racks of the transformable crawler units and drives the transformable crawler racks to be transformed, and the bottoms of the crawlers can always be kept horizontal. The invention further discloses a robot moving platform with the transformable-crawler suspension bracket. Because the transformable-crawler suspension bracket is arranged, the terrain adaptability and the passing capability of the robot are improved, and the moving stability of the robot is also improved.

The invention discloses a self-leveling type belt self-advancing tail. The self-leveling type belt self-advancing tail comprises a self-advancing tail body, leveling oil cylinders and a self-leveling system arranged on the self-advancing tail body, wherein the self-advancing tail body comprises four supporting legs, the four leveling oil cylinders are fixedly arranged on the four supporting legs, the self-leveling system comprises an intrinsic safety controller and an angular balance detection module, the angular balance detection module is installed on one supporting leg of the self-advancing tail body, the angular balance detection module and the four leveling oil cylinders are connected with the intrinsic safety controller, according to the angle between each supporting leg and the supporting leg provided with the angular balance detecting module and the horizontal plane, detected by the angular balance detecting module, the intrinsic safety controller controls the corresponding leveling oil cylinders on the supporting legs to extend and contract, and then leveling of the self-advancing tail body is achieved. According to the self-leveling type belt self-advancing tail, due to the fact that the ground of the roadway is uneven, the height of each supporting leg is adjusted by the aid of the angular balance detection module according to the actual situation of the roadway, so that the self-advancing tail is guaranteed to be in a horizontal state in real time. The invention further provides a self-leveling method of the belt self-advancing tail.

The invention relates to a worktable, in particular to an automatic-leveled bearing worktable for a ship. The device system comprises a two-dimensional dip angle sensor, a bearing worktable tabletop plate, a gear transmission device, a leveling rod, a support leg, a programmable logic controller (PLC), a servo motor and a motor drive thereof, and the like. The two-dimensional dip angle sensor is mounted in the center of the bottom surface of a worktable tabletop; and two coordinate shafts of the sensor are overlapped with two diagonal lines of the bearing worktable tabletop, so that the sensor can measure dip angles between the two diagonal lines of the worktable and the horizontal plane, and acquires two-dimensional dip angles of the worktable tabletop corresponding to the horizontal plane in real time, including x-axle dip angle signals and y-axle dip angle signals. The signals are transferred to the programmable logic controller through data wires; and the programmable logic controller calculates the inclination quantity and sends control signals in real time to control operation of the servo motor so as to adjust the leveling rod to always keep the tabletop in a stable horizontal state.

The invention discloses a material conveying device. The device comprises a rack, guide rails which are arranged at two sides of the rack, a movable support assembly arranged at the bottom part of a hopper, and a driving sprocket assembly for supplying power to enable the motion of the hopper, wherein the guide rails include a front wheel guide rail, and a rear wheel guide rail which is arranged at the bottom part of the front wheel guide rail; the front wheel guide rail and the rear wheel guide rail are provided with horizontal sections and vertical sections; vertical gaps are formed in the tail ends of the front wheel guide rail and the rear wheel guide rail; the movable support assembly comprises a fixing end which is fixed to the hopper, and a hinging end which is hinged to the fixing end; a forward moving wheel and a rear moving wheel which are correspondingly matched with the front wheel guide rail and the rear wheel guide rail are correspondingly arranged at the fixing end and the hinging end; a closed-loop driving rope which is connected with the driving sprocket assembly is connected with a connector which is fixed to the movable support assembly. With the adoption of the material conveying device, a material receiving opening of the hopper can be kept in a horizontal state all the time; in addition, the material conveying device is high in structure stability, and not liable to be deformed and damaged.

The invention discloses production equipment for plastic drainage strips. The equipment comprises a driving device, and also comprises a feeding device, a pressing device and a winding device from end to end in turn, wherein a plurality of groups of raw materials are parallelly arranged in the feeding device; each group of raw material comprises a core plate coil (5), an upper filter membrane coil (7) and a lower filter membrane coil (21); and the driving device is connected with and drives the pressing device. After the structure is adopted, the plurality of groups of raw materials are parallelly arranged in the feeding device, namely a plurality of drainage strips can be produced at one time simultaneously, so that production efficiency is greatly improved.

The invention relates to a hydraulic elevating leveling device and a control and use method for the same, belonging to the technical field of hydraulic control. The device comprises a hydraulic control loop, a limit switch and an electric controller, wherein the hydraulic control loop comprises a hydraulic cylinder, a first hydraulic control one-way valve and a two-position three-way electromagnetic directional valve respectively matched with the hydraulic cylinder in quantity, a balance cylinder, a two-position four-way electromagnetic directional valve, a second hydraulic control one-way valve, a three-position four-way electromagnetic directional valve and a hydraulic power oil source. The method comprises the following steps of: respectively controlling a coil at one side or the other side of the three-position four-way electromagnetic directional valve to be electrified, and controlling the two-position four-way electromagnetic directional valve and the two-position three-way electromagnetic directional valve to be powered off; according to three conditions that the hydraulic cylinder reaches an elevating high position or low position, respectively taking the three steps of stopping oil supply, independently driving the hydraulic cylinder or stopping oil supply after delaying for a certain time. In the device and the method, each hydraulic elevating control process is divided into steps of firstly elevating quickly, and then independently controlling the actions of the hydraulic cylinder, thereby accurately regulating the elevating of the hydraulic cylinder.

The invention discloses an angle adjusting mechanism of an optical instrument, and relates to the technical field of optical instruments. The angle adjusting mechanism comprises a base, and grooves are formed in the periphery of the bottom end of the base. Threaded rods are fixed in the grooves of the base; a sleeve is connected on each threaded rod in a threaded manner; the outer wall of the bottom end of the sleeve is sleeved with an adjusting knob; the bottom end of the sleeve is fixedly connected with a bearing; a suction cup is fixed to the bottom end of the bearing, an objective table isfixed to the upper surface of the base, a stand column located on the left side of the objective table is fixed to the upper surface of the base, a rotating shaft is movably installed at the top endof the stand column, a fixing base is fixedly installed at the upper end of the rotating shaft, and a second fastening knob is movably installed at the upper end of the fixing base. The length of thesleeve can be adjusted, the device can be stably placed on the workbench, it is guaranteed that the base is in a horizontal state, use and observation of the microscope are facilitated, the microscopebody can be adjusted at multiple angles and the practicability of the device is improved.

The invention discloses a multifunctional intelligent delivery robot. Two annular sliding rails are vertically arranged on a bottom support, a plurality of storage boxes used for storing materials areinstalled on the two annular sliding rails, driving motors drive synchronous wheels to drive the storage boxes to move along the two annular sliding rails, the materials in the corresponding storageboxes are delivered to a cover feeding position arranged on a robot shell, the materials in the corresponding storage boxes are delivered to an outlet position on the robot shell, driving wheels and driven wheels are arranged on the bottom support, and the two driving wheels run differentially to achieve turning and walking of the robot. Automatic cargo delivery is achieved through the robot, various different materials are stored in the storage boxes respectively, the specific storage boxes are delivered to the outlet position of the robot when arriving at the designated position, manpower isreplaced, robot intelligent delivery is achieved, and the multifunctional intelligent delivery robot has the advantages of being large in storage space, simple and reliable in structure, convenient and fast in delivery process and capable of improving working efficiency and saving man power and material resources.

The invention discloses a hyperpolarization gas breathing device for a human body under a non-narcosis state. The device comprises a console (1), an I / O port (2), four electromagnetic valves (5, 8, 11 and 14), four solid-state relays (3, 7, 10 and 12), a two-way air control valve (16), a three-way direction-changing air control valve (20), three gas flow meters (4,9 and 19), two nitrogen cylinders (13 and 15), a hyperpolarization gas sampling bag (17), a sealed organic glass box (18) and an oxygen bottle (6). The console controls the solid-state relays to turn on or turn off the electromagnetic valves through the I / O port, and the electromagnetic valves turn on or turn off the air control valves to control the state of the human body each time air is breathed in and breathed out. The device is simple in structure, convenient to control and capable of enabling the human body to accurately breathing in and breathing out hyperpolarization gas in a constant size under the non-narcosis state, the human body can breathe multiple times and sampling can be carried out repeatedly.

The invention discloses a four-shaft stacking robot. The four-shaft stacking robot comprises a first swing arm, a second swing arm, a rotating base, a first swing driving mechanism, a second swing driving mechanism and a tail end executing mechanism; the first swing arm is arranged on the rotating base in the vertical direction, and can be driven by the rotating base to rotate horizontally; the first swing driving mechanism is arranged on the rotary base and can also drive the first swing arm to swing forwards and backwards; the second swing arm is movably connected to the upper side of the first swing arm; the second swing driving mechanism is arranged on the second swing arm and can also drive the second swing arm to swing up and down; the tail end executing mechanism is provided with a receiving base and a tail end driving assembly; the receiving base is hinged to the second swing arm; and the tail end driving assembly is installed on the receiving base. The four-shaft stacking robot is simple and reasonable in overall structure, high in transmission precision, stable in running and large in grabbing area.

The invention relates to an auxiliary device and method used for installing an air-conditioner outdoor unit and belongs to the related technical field of air-conditioner engineering installation. The device part mainly comprises a suspension mechanism used for being suspended on a sill. The lower portion of the suspension mechanism is fixedly connected with a left side bolt hole locating mechanism and a right side bolt hole locating mechanism. The left side bolt hole locating mechanism and the right side bolt hole locating mechanism are correspondingly provided with locating hole plates which can move independently. The locating hole plate located on the left side is fixedly connected with a level gauge which is provided with an infrared transmitter. The locating hole plate located on the right side is fixedly connected with an infrared receiver matched with the infrared transmitter. By designing the brand-new structure, technicians can mark correct punching points on the outer wall with the help of the device, and an air-conditioner is in a horizontal state after being installed.

The instant disclosure relates to a lifting device for transporting a wafer carrier to an automatic handling system including a suspension rail and an automatic guiding vehicle configured to move along the suspension rail, comprising an elevating holder, a plurality of suspension modules, and a plurality of first drive modules. Specially, the elevating holder has a motion sensor configured to detect whether the elevating holder is in a horizontal state or a non-horizontal state. The first drive modules can be used to synchronously drive the suspension modules according the horizontal state detected by the motion sensor, and the first drive modules can also be used to individually drive each of the suspension modules according the non-horizontal state detected by the motion sensor to recover the elevating holder from the non-horizontal state as the horizontal state.

The invention discloses a power cabinet with waterproof function, which comprises a cabinet body, a humidity tester is fixedly connected to one side of the outer wall of the cabinet body, and a fixing rod is fixedly connected to the inside of the cabinet body, and the tops of the fixing rods are respectively fixed from left to right The controller and the motor are connected, and the inner cavity on the top of the cabinet is fixedly connected with a bearing. The inner part of the bearing is fixedly sleeved with a nut, and the outer part of the bottom of the nut is fixedly sleeved with a wheel. The outer wall of the wheel is connected to the output shaft of the motor through a belt drive. The outer wall of the nut, the inner thread of the nut is sleeved with a threaded rod. The power cabinet with waterproof function, through the cooperation between the humidity tester, controller, motor, bearings, nuts, belts and threaded rods, can ensure that no matter how heavy the rainwater is, it will not float into the power cabinet and keep the inside of the cabinet. Dry to ensure that the circuit inside the cabinet will not be short-circuited by rain, thereby reducing the loss of the circuit inside the cabinet and improving the service life of the power cabinet.

The invention discloses a locating and gripping experimental device for aircraft thin-wall parts. Cross beams, vertical supporting beams, a connecting beam and a connecting plate are adopted to form a supporting frame structure; the four vertical supporting beams fixedly connected with the four cross beams, respectively; the plurality of connecting beams are fixed on the upper surfaces of both the upper cross beams and the lower cross beams of the supporting frame in parallel; the connecting beams on the upper surfaces of the upper cross beams and the connecting beams on the upper surfaces of the lower cross beams are mounted in a relatively dislocated way; every two grippers are fixed on the side surfaces of the upper connecting beams of the supporting frame; every two locators are fixed on the side surfaces of the lower connecting beams of the supporting frame; gripping heads of the grippers and locating heads of the locators are coaxial with each other so as to oppositely locate and grip the thin-wall part; and four levelling supports are symmetrically mounted on the lower surfaces of the lower cross beams of the supporting frame and used for adjusting the supporting frame to a horizontal posture. The locating and gripping experimental device for the aircraft thin-wall parts, disclosed by the invention, is advantaged in that the experimental device is simply structured and capable of locating and gripping the thin-wall parts with different shapes and sizes; and as the locators and the grippers are configured in a modularized way, the locating and gripping experimental device is highly adaptive and reconfigurable.

The invention relates to a process for filling low temperature heat pipe media, which includes: 1. preparing of filling liquid quantity, 2. filling of ammonia liquid in a filling tank, 3. installation preparing of a heat pipe, 4. filling of media, 5. air exhausting of the heat pipe, 6. sealing of a liquid filling pipe, 7. sealing of an exhaust pipe and 8. welding of a protection cap. The process for filling the low temperature heat pipe media is simple, time-saving, labor-saving, high in filling work efficiency and easy and simple in method, reduces labor intensity, shortens processing time, and is safe, reliable and not apt to generate ammonia leakage. The process for filling the low temperature heat pipe media has the advantages that a new filling process is applied during low temperature heat pipe manufacture, the existing process method of using a vacuum pump for vacuumizing is fundamentally changed, and the feature of rapidly expanding in volume during evaporation of liquid ammonia is used for leading pressure in the pipe to be increased. The air is evacuated through pressure of gaseous ammonia, and the process is good in effect and reduces production cost.