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51results about How to "Troubleshoot damage, etc." patented technology

Construction method for opening of contact channel of existing shield tunnel

The invention discloses a construction method for an opening of a contact channel of an existing shield tunnel, which comprises the following steps of: firstly, supporting and reinforcing duct pieces which do not occupy a road in an opening area and an influence range by adopting a duct piece supporting and reinforcing device; then a three-pilot-hole three-step construction method is adopted for duct piece opening construction, specifically, a middle pilot hole is excavated firstly, and a middle pilot hole connector ring beam, a stand column and a temporary steel support are constructed; a left pilot tunnel is constructed, and the left side ring beam is closed; finally, a right pilot tunnel is constructed, the right side ring beam is closed, and at the moment, totally-closed construction of the opening area ring beam is completed; and dismantling the temporary support after the ring beam is closed and reaches the design strength. According to the method, construction treatment of the existing shield tunnel evacuation channel and the entrance and exit duct piece opening can be safely and rapidly completed, the construction progress is fast, structural deformation is small, the safety quality is guaranteed, the treatment period is effectively shortened, it is ensured that a set target of a construction unit is smoothly achieved, and social benefits and economic benefits are remarkable.
Owner:THE FIFTH ENGEERING OF CHINA RAILWAY 5TH BUREAU GROUP +1

Control device for shifting of gearbox for driving traveling

The invention relates to a control device for shifting of a gearbox for driving traveling. The control device comprises a shift signal detection circuit, an engine rotation speed signal detection circuit, a shift switch control circuit, a shift display circuit, a shift output control circuit, a programmable controller and an oil pump control circuit, wherein the shift signal detection circuit is used for detecting a shift signal of the gearbox, the engine rotation speed signal detection circuit is used for sampling a rotation speed signal of an engine, the shift switch control circuit is used for controlling the input and output of shifting, and the oil pump control circuit is used for receiving a control signal outputted by the programmable controller to enable an oil pump proportional amplifying circuit to output set current value, so as to control the displacement of a hydraulic pump. The control device has the advantages that as the programmable controller and the intelligent detection and control circuits are adopted, the design is novel, the structure is simple, the control performance is high, the reliability is high, and the like; the purpose of quick and safe shifting of the gearbox is realized; and the problems of difficult shifting, damage to gears, and the like caused by the defects of the prior art are effectively solved.
Owner:GEMAC ENG MACHINERY

Reciprocating impact part of multistage protection sealing telescopic sleeve

The invention relates to the field of mining machineries, in particular to a reciprocating impact part of a multistage protection sealing telescopic sleeve. The reciprocating impact part structurally comprises a multistage protection guide shaft box body, a crankshaft, a connecting rod, a guide impact piece, guide pieces and a main reciprocating tooth. The multistage protection guide shaft box body supports the guide pieces; the guide pieces support the guide impact piece to guide the guide impact piece; the crankshaft is connected with the connecting rod; and the crankshaft drives the connecting rod driving the guide impact piece to impact in a reciprocating mode. One end or the two ends of the guide impact piece stretches/stretch out of the multistage protection guide shaft box body; and the multistage protection sealing telescopic sleeve is arranged in the position, at the stretching end of the guide impact piece, of the multistage protection guide shaft box body. The guide impact piece comprises a guide rod sealing section. The shape of the cross section of the inner diameter of the multistage protection sealing telescopic sleeve is matched with the shape of the cross section of the outer diameter of the guide rod sealing section. The guide rod sealing box body section and a box body sealing piece are matched to prevent dust, muddy water, material and the like from entering the box body. According to the structure, maintenance in site is reduced, the maintenance cost is saved, the service life of a reciprocating mining machine is greatly prolonged, and the practical efficiency of the reciprocating mining machine is greatly improved.
Owner:刘素华

Locked-rotor protector of high pressure flow regulating valve

Provided is a locked-rotor protector of a high pressure flow regulating valve. The problem that a traditional locked-rotor protector working by the adoption of a locked-rotor current detection mode cannot be applied to the high pressure flow regulating valve is mainly solved. The locked-rotor protector of the high pressure flow regulating valve is characterized in that the locked-rotor protector further comprises a starting detection module for detecting a starting signal of an electromagnetic valve, a rotation detection module for detecting rotation of an electromagnetic valve hand wheel and an electromagnetic valve control module for controlling the electromagnetic valve to cut off. The starting detection module is composed of a galvanometer diode set and an optocoupler. The rotation detection module is composed of the hand wheel installed on the high pressure flow regulating valve, a magnet fixed to the hand wheel and a reed switch sensor fixed to a valve body of the high pressure flow regulating valve. The electromagnetic valve control module is composed of three mutually independent relay modules. Each relay module controls on-off of one electromagnetic valve motor control line. A control signal port of the electromagnetic valve control module is connected to the electromagnetic valve control signal output end of a single-chip microcomputer.
Owner:NORTHEAST GASOLINEEUM UNIV

Automatic edging equipment for electricity meter display screen

The invention relates to the technical field of electricity meter display screen processing equipment, and discloses automatic edging equipment for an electricity meter display screen. The automatic edging equipment comprises a side baffle, and a supporting plate is fixedly mounted on one side of the bottom of the side baffle. A connecting plate is fixedly mounted at the bottom of one side of thesupporting plate, a driving motor is fixedly mounted at the top of the connecting plate, and one side of the front face of the side baffle is rotationally connected with a rotary rod. One end of the rotary rod extends to the back face of the side baffle, and the other end of the rotary rod is fixedly sleeved with a rotary ring located on the back face of the side baffle. A fixed block is fixedly mounted on one side of the front face of the side baffle. According to the automatic edging equipment for the electricity meter display screen, by means of mutual cooperation of a first electric hydraulic rod, a limiting plate, a micromotor, a grinding rod and a grinding head, the electricity meter display screen can be subjected to edging treatment better, and therefore the problem that in the process of carrying out edging treatment on the electricity meter display screen through the edging equipment, the electricity meter display screen is likely to be damaged is solved; and the edging success rate of the electricity meter display screen is increased.
Owner:HUAIHUA JIANNAN MACHINERY FACTORY CO LTD

Self-positioning vertically-stacked process tray and manufacturing method thereof

ActiveCN113120380ASolve the problem of not being able to stack neatly verticallyTroubleshoot damage, etc.Rigid containersStructural engineeringMechanical engineering
The invention discloses a self-positioning vertically-stacked process tray. The self-positioning vertically-stacked process tray comprises a tray body and a positioning device, wherein the tray body is provided with a containing groove for containing workpieces, the positioning device comprises a positioning rod and a positioning column, the lower end of the positioning rod penetrates through the tray body to be connected to the positioning column, a containing hole is formed in the lower end of the positioning column and matches with the upper end of the positioning rod, and an anti-falling part is arranged on the positioning rod. According to the self-positioning vertically-stacked process tray and the manufacturing method thereof, the positioning device is arranged on the tray body, so that the tray can be vertically stacked, layers are not overlapped, neat and reliable, and the problems that a traditional process tray is overlapped in layers and must be stacked in a staggered mode, the occupied station area is large, the tray is extremely prone to being turned over in the moving process, and materials are damaged due to the fact that corners of the upper-layer tray fall into the lower-layer tray are solved.
Owner:NO 24 RES INST OF CETC

Data line storage device with good sealing performance

The invention discloses a data line storage device with good sealing performance. The data line storage device comprises a storage box, a storage groove is formed in the inner side of the middle of the storage box, a mouth-shaped sealing strip is fixedly connected to the position, corresponding to a groove opening of the storage groove, of the side wall of the storage box, and two clamping groovesare symmetrically formed in the side wall of the side, close to the groove opening of the storage groove, of the storage box. The data line storage device has the beneficial effects that a first fixing hook of a fixing block and a second fixing hook of an L-shaped fixing block are controlled by stretching and retracting of a first spring and a second spring, so that the first fixing hook and thesecond fixing hook are mutually clamped or separated, and the storage box and a box cover are fixed or separated; and the mouth-shaped sealing strip is arranged in a mouth-shaped groove, and the outerwall of a sealing block is attached to the inner wall of the storage groove, so that the sealing performance of the storage device is improved, and the problems that most data line storage devices are poor in sealing performance, consequently, data line connectors are filled with dust, and data lines are damaged after water accidentally enters the data line connectors are effectively solved.
Owner:CHONGQING AEROSPACE POLYTECHNIC COLLEGE

Packaging box connecting device

The invention belongs to the technical field of connecting equipment, and particularly relates to a packaging box connecting device. The packaging box connecting device comprises a male seat assemblyand a female seat assembly which are separately installed on two adjacent packaging boxes; the male seat assembly includes a male mounting base and a spring bolt, the spring bolt is mounted on the male mounting base; the female seat assembly includes a female mounting base and a locking member, and the female mounting base is provided with a female mounting cavity; and a locking hole used for hooking arranging of the sprig bolt is formed in one side part of the locking member, and the other side part of the locking member is rotatably mounted on the cavity bottom surface of the female mountingcavity so that the locking hole can be located outside the female mounting cavity. Since the locking member of the packaging box connecting device according to the embodiment of the invention can rotate relative to the female mounting cavity, when the female seat assembly and the male seat assembly do not need to be connected, the locking member is pushed to rotate, so that the locking member isreceived in the female mounting cavity, and the problems of collision and damage caused by the locking member located outside the female mounting base are solved.
Owner:SHENZHEN MICROMULTICOPTER AERO TECH CO LTD

Startup and shutdown system and method capable of preventing false triggering

The invention proposes a startup and a shutdown system and method capable of preventing false triggering, and the system comprises a first power supply module, a second power supply module, a force measurement unit, a control module and a second magnetic force module, wherein the force measurement unit and the control module are located on a mainboard, and the second magnetic force module is located on a middle backboard. The first power supply module supplies power to the force measuring unit; the force measuring unit is used for measuring the acting force between the first magnetic module and the second magnetic module and converting the acting force into a level signal, and outputting a level signal for switching on and off by comparing the level signal with the initial level signal; and the control module is connected with the force measuring unit and is used for executing startup and shutdown operation according to the level signal and the state of the power button. Electrodes between the first magnetic module and the second magnetic module are the same or opposite. Based on the system, the invention further provides a method for preventing the startup and shutdown from being triggered by mistake, the startup and shutdown operation can be effectively prevented from being triggered by mistake, and the board card can be effectively protected from being damaged by operations such as violent insertion and extraction of machine nodes.
Owner:SHANDONG YINGXIN COMP TECH CO LTD

A control device for shifting gears of a driving gearbox

ActiveCN103213576BShift quicklySafety in gearGearing controlGear driveGear wheel
The invention relates to a control device for shifting of a gearbox for driving traveling. The control device comprises a shift signal detection circuit, an engine rotation speed signal detection circuit, a shift switch control circuit, a shift display circuit, a shift output control circuit, a programmable controller and an oil pump control circuit, wherein the shift signal detection circuit is used for detecting a shift signal of the gearbox, the engine rotation speed signal detection circuit is used for sampling a rotation speed signal of an engine, the shift switch control circuit is used for controlling the input and output of shifting, and the oil pump control circuit is used for receiving a control signal outputted by the programmable controller to enable an oil pump proportional amplifying circuit to output set current value, so as to control the displacement of a hydraulic pump. The control device has the advantages that as the programmable controller and the intelligent detection and control circuits are adopted, the design is novel, the structure is simple, the control performance is high, the reliability is high, and the like; the purpose of quick and safe shifting of the gearbox is realized; and the problems of difficult shifting, damage to gears, and the like caused by the defects of the prior art are effectively solved.
Owner:GEMAC ENG MACHINERY

High pressure flow regulating valve stall protector

The utility model relates to a high-pressure flow regulating valve blocking protector. It mainly solves the problem that the traditional blocking protector working in the way of detecting the blocking current cannot be applied to the high-pressure flow regulating valve. It is characterized in that: the locked-rotor protector also includes a start-up detection module capable of detecting the start-up signal of the solenoid valve, a rotation detection module capable of detecting the rotation of the handwheel of the solenoid valve, and a solenoid valve control module capable of controlling the shut-off of the solenoid valve; wherein, the start-up The detection module is composed of a current detection diode group and an optocoupler; the rotation detection module is composed of a handwheel installed on the high-pressure flow regulating valve, a magnet fixed on the handwheel, and a reed switch sensor fixed on the high-pressure flow regulating valve body Composition; the solenoid valve control module is composed of 3 relay modules independent of each other, and each relay module controls the on-off of a solenoid valve motor control line; the control signal port of the solenoid valve control module is connected to the solenoid valve control of the single-chip microcomputer signal output.
Owner:NORTHEAST GASOLINEEUM UNIV

Automatic rollback control system and method for rock drill

The invention relates to an automatic rollback control system and method for a rock drill. The system comprises an electrical system, a hydraulic control handle, a control valve block, a pushing oil cylinder, a first pressure switch and an oil tank, and the control valve block comprises an automatic rollback control valve group, a hydraulic-control proportional multiway valve, an overflow valve, a throttle valve and a travel control valve; the automatic rollback control valve group comprises a reversing solenoid valve group and a second pressure switch; when the rock drill moves to the top end of a push beam, a stroke valve is touched, the pressure switches act and send out signals, the rock drill stops drilling automatically and retreats to a specified location, and in the retreating process, if the rock drill needs to move forwards, a person only needs to operate the handle again. Accordingly, the phenomena that when the rock drill drills into the top end of the push beam, the push beam is damaged, and the rock drill idles can be avoided, it can be guaranteed that the rock drill is in a controllable state in the automatic retreating process, operation is convenient, use is safe and reliable, and the efficiency is high.
Owner:CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD

Ship ballast water sampling device

The invention provides a ship ballast water sampling device. The device comprises a base, a cover plate, a water taking plate, a water wheel and a rotating shaft, a water inlet and a water outlet are formed in the two ends of the base respectively, a rotating groove is formed in the cover plate, and the water taking plate is located in the rotating groove and can rotate in the rotating groove; a sliding groove is formed in the base, a water taking opening communicated with the sliding groove is formed in the side wall of the base, a sliding block and an elastic piece are arranged in the sliding groove, one end of the elastic piece is connected with the sliding block, the other end of the elastic piece is connected with the base, a magnetic block is arranged on the water wheel, and the magnetic block can drive the sliding block to move in the sliding groove through magnetism; a water storage tank is arranged on the cover plate, the water storage tank corresponds to the sliding groove and communicates with the sliding groove, an inlet check valve is arranged in the water storage tank and is arranged at the communicating position of the water storage tank and the sliding groove, and an outlet check valve is arranged at the water taking opening; a water taking groove is formed in the water taking plate, and a through hole is formed in the side wall of the base; and when the water taking plate rotates, the water taking groove can communicate with the through hole and the water storage groove at intervals.
Owner:SUNRUI MARINE ENVIRONMENT ENG

Double-channel high-precision positioning and locking device and transport vehicle

The invention discloses a double-channel high-precision positioning and locking device and a transport vehicle. The device comprises a fixed platform, the middle part of the fixed platform is rotatably connected with a screw rod, the screw rod is vertically arranged, the fixed platform is provided with a driving device for driving the screw rod to rotate, and the upper end of the screw rod is provided with a nut; and the nut is fixedly connected with a horizontally-arranged moving platform, the two ends of the moving platform are each in sliding connection with a guide mechanism, the screw rod is in transmission connection with the nut to drive the moving platform to move up and down in the vertical direction of the wire guide mechanism, and the two ends of the fixed platform are each provided with a locking device used for enabling the driving device to be opened or closed. The two-way guide mechanism is adopted for accurate positioning, and meanwhile, the travel switch is arranged for state monitoring so that the rapid locking function of the vehicle-mounted equipment in the transportation process is achieved, and the problems that the current vehicle-mounted equipment is damaged in the transportation process and the like are fully solved.
Owner:GUILIN CHANGHAI DEV

Automatic textile fabric cleaning equipment capable of preparing non-woven fabric cleaning liquid according to weight

The invention discloses automatic textile fabric cleaning equipment capable of preparing non-woven fabric cleaning fluid according to weight. The automatic textile fabric cleaning equipment comprises an equipment assembly and a working box arranged in the equipment assembly, wherein a mechanism cavity and a cleaning cavity arranged on the lower side of the mechanism cavity are fixedly arranged in the working box. Corresponding amount of a cleaning agent can be automatically input into a cleaning pool according to the weight of non-woven fabric needing to be cleaned, a sliding rod is driven to move downwards through pressure transmitted by a spring, the sliding rod drives a push plate to push the non-woven fabric into the cleaning pool and drives an output port of the cleaning agent to be opened at the same time, the cleaning agent is discharged into the cleaning pool through a pipeline, a water pipe is arranged in a pipe cavity where the cleaning agent is input, water in the water pipe can effectively prevent the cleaning agent from being attached to the inner wall of the pipe cavity, a flexible grinding and rubbing plate is arranged in the cleaning pool, the non-woven fabric can be gently rubbed, and the problems that some places of the non-woven fabric cannot be completely cleaned, the cleaning effect is poor, and the non-woven fabric may be deformed and damaged can be solved.
Owner:蔡占民
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