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34results about How to "Precisely control the moving distance" patented technology

Variable density and gas flow rate smoldering characteristic experiment device and testing method

The invention discloses a variable density and gas flow rate smoldering characteristic experiment device and a testing method and belongs to the technical field of detection. The experiment device comprises a gas cylinder group, a control and analysis platform and a smoldering experiment table that are sequentially communicated electrically, wherein the smoldering experiment table comprises a precise density adjustment and control device, a precise angle adjustment device, a controllable auxiliary heating device, an embedded thermocouple and a heat flow meter; and the control and analysis platform comprises a gas flow rate control system, a displacement adjustment and control panel, an angle adjustment and control panel, a power adjustment and control panel, a temperature data acquisitiondevice, a heat flow data acquisition device, a gas toxicity analysis device, a data storage device, an emergency stop button, a power supply button and a measurement button. The device and the methodare particularly used for determining a smoldering characteristic parameter of a porous medium material under the conditions of different densities and different gas flow rates, provide basic data fordetermining a condition of smoldering converted to open fire combustion and are mainly used for fire scientific researches and firefighting instruction.
Owner:CHINA UNIV OF MINING & TECH

Automatic brushing device for waterproof coating on inner wall of tunnel

The invention relates to an automatic brushing device for a waterproof coating on the inner wall of a tunnel, and belongs to the technical field of tunnel waterproof construction. The automatic brushing device comprises a slide rail, a base movably assembled on the slide rail, a support frame, a waterproof coating brushing assembly and a material baffle plate, the base is provided with a waterproof coating stirring barrel and a material spraying barrel, and the support frame is provided with a gear transmission assembly and a gear driving motor; the waterproof coating brushing assembly comprises a hydraulic telescopic rod, a supporting plate connected to the driving end of the hydraulic telescopic rod, a coating brush installed on the supporting plate and a coating sprayer; the material baffle plate is arc-shaped and is provided with a containing groove, and power of the gear driving motor is transmitted to the hydraulic telescopic rod through the gear transmission assembly to drive the coating brush to brush the waterproof coating along the inner wall of the tunnel; and the splashed waterproof coating is blocked by the material baffle plate to enter the containing groove and flows into the material spraying barrel, so that waste is avoided. According to the automatic brushing device for the waterproof coating on the inner wall of the tunnel, automatic spraying and automatic brushing of the waterproof coating can be achieved, and the construction efficiency and the construction safety are improved.
Owner:CHINA CONSTR SEVENTH ENG DIVISION CORP LTD

VRU motion triggering system and method in automobile AEB test

The invention discloses a VRU motion triggering system and a VRU motion triggering method in an automobile AEB test, which belong to the field of driving assistance systems. The VRU motion triggeringsystem comprises a controller, a radar, a driving unit, a traction device and a dummy device, wherein the radar is used for detecting a moving speed of the target vehicle and a distance between the target vehicle and the dummy device VRU; the controller is used for acquiring collision time of the target vehicle and the dummy device VRU according to the moving speed of the target vehicle and the distance between the target vehicle and the dummy device VRU, and sending a driving signal to the driving unit when the collision time is less than or equal to preset time; the driving unit is used forsending a trigger signal to the traction device after receiving the driving signal; and the traction device is used for controlling and pulling the dummy device VRU to move according to a preset speedand a preset direction under the driving action of the driving unit after receiving the trigger signal. The VRU motion triggering system and the VRU motion triggering method are low in implementationcost, and meet the requirements of AEB pedestrian tests simply and efficiently.
Owner:WUHAN JIMU INTELLIGENT TECH CO LTD +1

Separated ablation catheter and sheathing canal combined driving device

The invention provides a separated ablation catheter and sheathing canal combined driving device. The device comprises a driving platform, a driving structure panel and adaptive consumables, and the driving platform comprises a catheter axial propelling and retreating driving module, a catheter head bending driving module and a sheathing canal axial propelling and retreating driving module; the driving structure panel is provided with a plurality of mounting holes, the adaptive consumables are fixed on the driving platform through the mounting holes, the adaptive consumables comprise a catheter and a motion control consumable thereof as well as a sheath and a motion control consumable thereof, and the catheter axial propulsion and retraction driving module is used for controlling axial propulsion and retraction operations of the catheter; the catheter head bending driving module is used for controlling the catheter head bending operation; and the sheath tube axial propulsion and retraction driving module is used for controlling sheath tube axial propelling and retreating operation, reducing the complexity of combined operation of the catheter and the sheath tube, meeting the requirement that an ablation target point reaches satisfactory catheter attachment or stable attachment is long enough, and improving the success rate and efficiency of an operation.
Owner:绍兴梅奥心磁医疗科技有限公司

Magnetic ellipsometry device

The invention belongs to the related technical field of optical measurement, and discloses a magnetic ellipsometry device which comprises an ellipsometry module, a magnetic field loading module and a sample table, the ellipsometry module is used for performing optical measurement on a sample, and the magnetic field loading module comprises a horizontal magnetic field loading module and a vertical magnetic field loading module, the horizontal magnetic field loading module comprises a horizontal moving assembly, a first permanent magnet magnetic pole pair and a rotating table, the rotating table is used for driving the horizontal moving assembly to rotate in a horizontal plane, and the horizontal moving assembly is used for enabling two magnets in the first permanent magnet magnetic pole pair to move face to face or back to back; the vertical magnetic field loading module comprises a vertical moving assembly and a second permanent magnet pole pair, and the vertical moving assembly enables two magnets of the second permanent magnet pole pair to move face to face or back to back relative to the sample table. According to the invention, ellipsometry parameter and Mueller matrix measurement can be carried out on to-be-measured samples under different magnetic field intensities and different modes of magnetic fields.
Owner:HUAZHONG UNIV OF SCI & TECH

Bending device for producing filter

The invention relates to the field of filter production, in particular to a bending device for producing a filer. The bending device comprises a base, and a movable plate is arranged on the upper sideof the base. A damping mechanism is arranged between the movable plate and the base, and a sliding groove is formed in the top end of the movable plate. A conveying mechanism is arranged on the sliding groove in a sliding connecting manner. A bending mechanism fixedly connected with the movable plate is arranged on the left side of the conveying mechanism. A reinforcing mechanism is arranged between the bending mechanism and the conveying mechanism. According to the bending device, by arranging the conveying mechanism, transportation of raw materials can be achieved, the work efficiency is improved, and meanwhile the labor intensity and the production cost are reduced; by arranging a driving mechanism, the moving distance of a sliding block can be accurately controlled; in cooperation with a scaleplate, the bending position can be accurately controlled; and by arranging the reinforcing mechanism, a pull rope can drive clamping plates on the two sides to move towards the materials while a pressing block moves downwards, and therefore the materials are further fixed, and the product quality is effectively guaranteed.
Owner:LEIYANG YAXIANG ELECTRONICS TECH

Electronic parking braking caliper special for parking braking

The invention discloses an electronic parking braking caliper special for parking braking. An outside braking block and an inside braking block are correspondingly installed on a main caliper body anda vice caliper body, a connecting plate is fixedly installed on the axle of a rear axle, a guiding hole for a caliper body guide pin and a caliper body guide pin sleeve to penetrate through is formedin the main caliper body, the caliper body guide pin sleeve is installed in the guiding hole of the main caliper body in a sleeving mode, the caliper body guide pin penetrates through the caliper body guide pin sleeve and is connected to a threaded hole of the connecting plate through a thread, and thus the main caliper body is connected with the connecting plate; and a caliper body return springis connected between the end part of the end, away from the connecting plate, of the caliper body guide pin and the main caliper body, and thus the main caliper body moves elastically in the axial direction of the caliper body guide pin shaft. According to the electronic parking braking caliper, a non-bracket structure is adopted, and the purposes of zero dragging, light weight, simple structureand good product assembly process of the braking caliper are achieved.
Owner:ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS

A sawing equipment for sleeper raw materials

ActiveCN114192881BPrecise and safe deliveryMonitoring lengthMetal sawing devicesSafe deliveryStructural engineering
The invention relates to the field of sleeper sawing, in particular to a sawing device for sleeper raw materials, comprising a conveying mechanism, wherein the conveying mechanism comprises a magnetic suspension guide rail, a traction assembly, a support slide, a first clamp and a second clamp. A first suspension block and a second suspension block are provided; the traction assembly includes a first hoist, a second hoist, a third hoist and a fourth hoist, and the traction ropes of the first hoist and the second hoist are connected with the first suspension block, and the third hoist The traction ropes of the hoisting machine and the fourth hoisting machine are connected with the second suspension block; the support slide includes a first support and a second support, and the first support and the second support are arranged on the first suspension block and the second suspension block; the first clamp and the second clamp are respectively set on the first suspension block and the second suspension block, the first clamp and the second clamp have a first clamp part and a second clamp part, the present application adopts magnetic suspension guide rail, traction assembly, support The assembly, the first clamp and the second clamp allow precise and safe delivery of lengths of sleeper material.
Owner:惠州市亚龙轨枕器材有限公司

Coordinate conversion method of aero-engine blade repair system based on visuo-tactile coordination

The invention discloses a coordinate conversion method of an aero-engine blade repair system based on visuo-tactile coordination. The coordinate conversion method comprises the following steps: 1, determining coordinates of a pin point and an original point of an image coordinate system under a mechanical coordinate system; 2, determining X-axis and Y-axis coordinates of a to-be-welded point under the mechanical coordinate system; and 3, determining Z-axis coordinates of the to-be-welded point under the mechanical coordinate system. According to the method, a visual system is applied to calibration and coordinate conversion of a welding gun, especially a visuo-tactile coordination mode is adopted in the conversion process of the Z-axis coordinates, and the distance between the welding gun and a plane to be welded is obtained in a tactile mode, so that a small distance which is not easy to collect visually is effectively supplemented, the coordinate conversion precision is improved, the repair system can accurately control the moving distance of the welding gun, a theoretical basis is laid for development of high-precision aero-engine blade repair equipment, and the practical engineering application value is very high.
Owner:HEBEI UNIV OF TECH

Surface spraying process of a fluorocarbon curtain wall decoration material aluminum plate

The present invention relates to a surface spraying process of fluorocarbon curtain wall decorative material aluminum plate, which uses a fluorocarbon spraying equipment, the fluorocarbon spraying equipment includes a base plate, a work frame, a fixing device and a spraying device, adopts the above-mentioned fluorocarbon spraying equipment to The specific process of spraying the surface of the aluminum plate of the fluorocarbon curtain wall decoration material is as follows: surface cleaning, primer spraying, topcoat spraying, curing treatment and factory inspection. After the present invention fixes two right-angled aluminum plates at the same time through the fixing device, the aluminum plates are kept in a vertical state, and then one of the aluminum plates is sprayed by a spraying device. During the spraying process, the spray gun can move intermittently in the horizontal direction, ensuring The spraying is comprehensive, and it will not be repeatedly sprayed at the edge of the spray gun width. During the interval between the first spraying and the second spraying of the first aluminum plate, the first spraying is carried out on the second aluminum plate, effectively improving The utilization rate of the spraying device is improved, and the overall work efficiency is improved.
Owner:云南康科科技有限公司

Torrent rescue system and ship body moving and reversing device thereof

The invention provides a torrent rescue system and a ship body moving and reversing device thereof. The torrent rescue system comprises a rescue ship, the ship body moving and reversing device and a rope traction device. The ship body moving and reversing device comprises a deck clamp, a bracket, a steering friction adjusting rod, a fixed seat, an operating rod and a guide plate, the bracket is mounted at one end of the deck clamp; the steering friction adjusting rod is mounted on the bracket, one end of the steering friction adjusting rod is provided with a fixed seat, and the other end of the steering friction adjusting rod is provided with a guide plate; one end of the operating rod is mounted on the fixed seat, and the other end extends into a cabin of the rescue boat; a rudder in the cabin adjusts the impact angle between the flow guide plate and the water flow by operating the operating rod; the rope traction device is installed on a river bank and connected with the rescue boat through a traction rope. The system is simple in structure and convenient to operate and use, the moving speed and distance of the rescue boat in the torrent water area can be accurately controlled, the rescue boat is effectively prevented from being washed away or overturned in torrent rescue, and the life safety of rescue workers is guaranteed.
Owner:十堰经济技术开发区消防救援大队

Automatic film pasting equipment for steel sheet connecting line blanking

The invention discloses automatic film pasting equipment for steel sheet connecting line blanking. The automatic film pasting equipment comprises a machine table, a support fixedly arranged on the machine table, a first driving device, a second driving device, a first upper module, a second upper module, a rotary disc arranged in the support, a lower module fixedly arranged on the top face of therotary disc, an ejection device arranged below the rotary disc and a control module, wherein the first driving device and the second driving device are fixedly arranged on the support, and the first upper module and the second upper module are fixedly connected with the first driving device and the second driving device correspondingly. By the adoption of the technical scheme, a material belt canbe punched through cooperation of the first upper module and the lower module, a punched product falls into a mold cavity of the lower module, the punched product is moved to the position below the second upper module through the rotary disc, the punched product can be pasted to an adhesive tape through cooperation of the second upper module, the lower module and the ejection device, automatic continuous production can be achieved, the production efficiency is high, the product quality is guaranteed, and the production requirements of enterprises can be met; and in addition, the labor consumption is low, and the labor cost of the enterprises can be greatly reduced.
Owner:成都领益科技有限公司

Built-in electromagnetic remote control jawbone distraction ossification distractor and operating method

The invention provides a built-in electromagnetic remote control jawbone distraction ossification distractor. The distractor comprises a built-in distracting device and an external remote control device, wherein the built-in distracting device comprises a screw rod; the screw rod is connected with a driving control device; a first fixing plate is arranged on the driving control device; and a moving distracting assembly is arranged on the screw rod, and comprises a sliding block located at the center and a second fixing plate arranged on the sliding block. The built-in electromagnetic remote control jawbone distraction ossification distractor disclosed by the invention adopts a built-in structure, a transmitting coil is controlled by a remote controller to transmit an electromagnetic pulsesignal to a receiving coil on the built-in distracting device, and the electromagnetic pulse signal is converted to an electric signal which can drive a motor to work through a motor driving circuit,so that the screw rod is driven to rotate, and a sliding block which is movably arranged on the screw rod moves up and down along the screw rod. Through the adoption of the built-in electromagnetic remote control jawbone distraction ossification distractor disclosed by the invention, the effect of distraction ossification can be effectively achieved, the infection rate is reduced, the length of distraction ossification is accurately controlled, the number and the length of incisions of the skin are reduced, and the scar hypertrophy is reduced.
Owner:GENERAL HOSPITAL OF THE NORTHERN WAR ZONE OF THE CHINESE PEOPLES LIBERATION ARMY

A magnetic ellipsometry measuring device

The invention belongs to the technical field of optical measurement, and discloses a magnetic ellipsometry measurement device. The device comprises an ellipsometry measurement module, a magnetic field loading module and a sample stage. The ellipsometric measurement module is used to perform optical measurement on a sample, and the magnetic field loading module includes A horizontal magnetic field loading module and a vertical magnetic field loading module, wherein the horizontal magnetic field loading module includes a horizontal moving component, a first permanent magnet pole pair, and a rotating table, the rotating table is used to drive the horizontal moving component to rotate in a horizontal plane, and the horizontal moving component is used for The two magnets in the first permanent magnet pole pair are moved towards each other or back; the vertical magnetic field loading module includes a vertical movement component and a second permanent magnet pole pair, and the vertical movement component makes the two magnets of the second permanent magnet pole pair face the sample The tables move toward or away from each other. In this application, ellipsometry parameters and Mueller matrix measurements can be performed on samples to be tested under different magnetic field strengths and different modes of magnetic fields.
Owner:HUAZHONG UNIV OF SCI & TECH
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