42results about How to "Good safety work" patented technology

The invention discloses a machine tool protection system of a precision grinding machine, relates to a precision grinding machine, and provides a machine tool protection system of a precision grinding machine capable of realizing closed, clean and pollution-free processing environment and protecting precision components of the grinding machine from being polluted or scraped. The machine tool protection system is provided with a shield, a left baffle plate, a right baffle plate, a cushion, scraping brushes, a bed guide rail shield, a screw mandrel sheath, a linear rail shield and a screw mandrel shield; the shield is arranged on the periphery of the grinding machine, the left baffle plate and the right baffle plate are arranged on left and right sides of a workbench respectively, the cushion is arranged on the left baffle plate, and the scraping brushes are arranged on the lateral surfaces of the left baffle plate and the right baffle plate; the bed guide rail shield is arranged on a bed guide rail of the workbench; the screw mandrel sheath is arranged at the top end of a screw mandrel of an upright post; and the linear rail shield is arranged on a base guide rail of the upright post, and the screw mandrel shield is arranged on a base screw mandrel of the upright post.

The invention discloses a tower crane tower body section pin shaft connecting method and a connecting pin shaft, and belongs to the technical field of tower cranes. The the tower body section pin shaft connecting method comprises the following steps: arranging a tower body section tenon after an inner hole at the end part of a main branch; arranging a bumper pin in a bumper pin hole of an ear board; arranging the connecting pin shaft which has a lockpin groove end in a connecting hole of the main branch of the tower body section; causing the end part of the lockpin part of the connecting pin shaft to contact with the bumper pin; arranging the lockpin in a lockpin hole of the ear board to lock the connecting pin shaft, using a cotter lockpin to fix the lockpin; exiting from the bumper pin, and completing the connection of a pin shaft. The connecting pin shaft comprises a pin shaft main body, an introducing part and a lockpin part, wherein, the introducing part is positioned between the pin shaft main body and the lockpin part; the lockpin groove used for fixing the lockpin is formed on the lockpin part along a circumference direction. The lockpin groove is formed on the connecting pin shaft of the invention and is free from the direction restrain during the lockpin process; and the introducing part is positioned between the connecting pin shaft main body and the lockpin groove, thereby causing the lockpin groove not to influence the introducing process of the connecting pin shaft. The invention has the advantages of convenient installation and detachment.

The invention relates to a gear wheel and rack coupled hydraulic multi-cylinder reciprocating pump, which consists of a hydraulic oil cylinder, a coupling, a cylinder sleeve of a working hydraulic cylinder, a piston, a piston rod, a gear wheel, a suction valve, a discharge valve, a hydraulic directional control valve, a hydraulic oil pump, an electric motor, and the like which are assembled and connected. The piston rod is provided with a rack; the hydraulic oil cylinder and the piston rod are arranged parallelly; the gear wheel is engaged with racks on the two piston rods simultaneously; and the two piston rods are arranged according to the movement phase difference of 180 degrees. Two hydraulic oil cylinders and two working hydraulic cylinders form a basic unit, and for the two hydraulic oil cylinders in the basic unit, oil can be provided to both non-rod chambers and rod chambers, and can be only provided to the non-rod chambers of the oil cylinders. The invention can be combined into a multi-cylinder reciprocating pump with two cylinders, four cylinders, six cylinders, and more even cylinders. The hydraulic multi-cylinder reciprocating pump has the advantages of high systematic efficiency, long stroke, low stroke frequency, large displacement, high pump pressure, long service life of wearing parts, small fluctuation of the displacement and the pump pressure, good suction performance, and simple and convenient maintenance.

The invention discloses a kerf sand inclusion blasting cartridge and a blasting installation device and production technology thereof. The kerf sand inclusion blasting cartridge comprises a kerf pipe and a blasting cartridge installed in the kerf pipe, wherein the pipe wall of the kerf pipe is provided with four kerfs at equal interval in the mode of a ring array, and a sand inclusion cartridge case is arranged between the blasting cartridge and the kerf pipe; the blasting cartridge is arranged in the sand inclusion cartridge case; thus, when the kerf sand inclusion blasting cartridge is arranged in the blast hole arranged in a coal mine, the kerf sand inclusion blasting cartridge instantly forms a crack on the kerf direction and forms a radial crack net on other directions, thus manually improving coal layer crack communication network, increasing coal layer air permeability, and obtaining the purpose of improving gas pumping and discharging. The technical scheme of the invention carries out gas pumping and discharging to a coal mine with low air permeability; compared with the pumping and discharging result, the pumping and discharging amount of gas is 1.79-2.98 times of that of common gas.

The invention relates to an insulator cleaning device, in particular to a power transmission line insulator cleaning device. The device comprises a water-spraying cleaning structure for being clamped and cleaning an insulator and a shaking structure for shaking the water-spraying cleaning structure to clean the insulator. The cleaning device not only can be used for entirely cleaning the insulator but also can be used for effectively eliminating stubborn stains on the surface of the insulator. Simultaneously, the cleaning device is also convenient for operators to operate safely.

The invention provides a rapidly-installed photovoltaic module integrated board and an installation method. The rapidly-installed photovoltaic module integrated board comprises a plurality of photovoltaic modules, a foldable integrated board fixing frame and a positioning installation device. The foldable integrated board fixing frame comprises a fixing frame component and a positioning hinge. Thepositioning installation device comprises at least two groups of positioning brackets and a driving part; the driving part drives the positioning brackets to move; a linkage mechanism is formed between the positioning brackets and the foldable integrated board fixing frame; and unfolding and folding of the foldable integrated board fixing frame are controlled through the positioning brackets. A plurality of photovoltaic module single boards connected in series are connected through a foldable integrated board fixing frame to form an integrated unit, the structural shape of the integrated unitafter being unfolded is controlled through the positioning angle of the positioning hinge, and the integrated unit is folded to form the size of one photovoltaic module single board or form a plane structure or a curved surface structure after being unfolded. Thus, a photovoltaic cell panel is protected, the transportation and installation efficiency is improved, and the construction cost of a photovoltaic power station is reduced.

The invention provides a hydraulic power steering gear with an adjustable steering wheel inclination angle. A steering wheel inclination angle adjustment device is arranged on an original hydraulic power steering gear, and the device is sequentially provided with a rotary disk valve pair fork end, a cross shaft element, a steering shaft fork joint, a steering wheel steering shaft and a steering wheel steering shaft sleeve on a fixed seat, wherein, the rotary disk valve pair fork end is connected with a rotary disk valve pair and is exposed from the fixed seat, and a locking mechanism is arranged outside the steering wheel steering shaft sleeve of the device. The hydraulic power steering gear can complete hydraulic power steering and realize vertical and inclination angle adjustment of a steering wheel, in particular the steering wheel inclination angle adjustment device helps adjust inclination angel of the steering wheel quickly according to needs of an operator for better adapting tooperation habit of the operator and improving comfortability, thus alleviating fatigue operation of a driver and being beneficial to safe operation.

The invention discloses a device, a system and a method for replacing a furnace column of a coking furnace. The device comprises a fixing unit, a limiting unit and a support, wherein the fixing unit is used for fixing the support of the device; the front end of the limiting unit is provided with a furnace column limiting part which is used for limiting a moving furnace column in a process of replacing the furnace column; the rear end of the limiting unit is movably connected with the support, and the furnace column limiting part is used for adjusting relative motion between the limiting unit and the support and controlling motion speed and direction of replacement of the furnace column. According to the system disclosed by the invention, hoisting is carried out by a winch, inclined pulling and hanging can be avoided, and security operation is facilitated; a large-scale crane is not used, so that machine-shift expense is reduced. The method is simple, convenient to implement and low in cost, and can be popularized to replacement construction of the furnace column of the coking furnace of any specification.

The invention provides a semi-submersible offshore fishing ground platform of a lightweight frame structure. The semi-submersible offshore fishing ground platform comprises a main body frame, a control room arranged at the top of the main body frame and netting installed on the side wall and the bottom of the main body frame. The main body frame comprises a central stand column, a plurality of external stand columns which are uniformly arranged around the central stand column, an upper horizontal support, a lower horizontal support, an upper chord pipe, a middle chord pipe, a lower chord pipeand an inclined support; the center stand column and the exteranl stand columns are the same in structure and each comprise an upper float bowl arranged on the upper portion, a middle stand column fixedly connected with the bottom of the upper float bowl and a lower float bowl fixedly connected with the bottom of the middle stand column. The fishery platform is light and stable in structure, the inclination angle can be controlled within 20 degrees in a normal operation state, the motion amplitude does not exceed 1 / 5 of the diameter of the breeding platform, and safety and stability of the breeding platform can be guaranteed.

The invention relates to an intelligent pipe dredging robot. The intelligent pipe dredging robot comprises a main frame, crawler wheels, a main hydraulic rod, a camera, a high-pressure sprayer, hydraulic splitters, a sludge collecting box and a rear hydraulic rod, wherein the crawler wheels are arranged on the bottom of the main frame; the main hydraulic rod which lifts and falls vertically is arranged on the main frame; the camera is arranged on the main hydraulic rod or at the front end of the main frame; the forward high-pressure sprayer or the forward hydraulic splitters is arranged on themain frame; the sludge collecting box which is connected with the main frame is arranged below the hydraulic splitter; and the rear hydraulic rod which is obliquely backward is arranged at the rear of the main frame. The intelligent pipe dredging robot is good in use performance, good in stability, low in cost and high in efficiency, and operates intelligently.

The invention discloses an automatic cutting plotter for an end face of a screw rod. The automatic cutting plotter comprises an automatic feeding device, a fixed-distance conveying device, workpieces,a supporting frame system and a center hole station, the top end of the automatic feeding device is connected with a transmission line and comprises a stepped feeding mechanism and an automatic hopper tipping mechanism, the automatic hopper tipping mechanism comprises a hopper, a turning plate and an overturning power device, the hopper is fixedly mounted on the top face of the turning plate, a finished product box is arranged below the tail end of the fixed-distance conveying device, a compressing mechanism is mounted above the top end of the fixed-distance conveying device, the workpieces are placed in the hopper, and the compressing mechanism is composed of a fourth base plate, a third air cylinder and a pressure head. According to the automatic cutting plotter for the end face of thescrew rod, orderly and stable feeding can be ensured, separation of workpiece individuals can be ensured, the operation continuity is ensured conveniently, the stability of workpiece machining can beensured, and thus safe operation is facilitated.

The invention discloses a green building supporting platform convenient for rapid construction. The platform includes a first base; a second base is plugged into one side of the first base; lifting electric push rods are disposed in supporting rods of the first base and the second base; an electric control box is disposed on the middle of the upper surface of the second base; a first top platformis disposed on the top end of the first base; a second top platform is disposed on the top end of the second base; and the first top platform and the second top platform are inserted together. The platform solves the problem that an existing indoor supporting platform for construction is often poor in flexibility, thereby leading to inconvenient usage of a construction platform and inconvenient movement of the construction platform according to use requirements, and the existing indoor supporting platform is poor in stability and safety and is prone to produce accidents during a construction process. Through improvement and optimization of a structure of a building construction platform, the building construction platform can be easily moved according to the use requirements, and the sizeof a working surface can also be changed according to the use requirements.

The invention provides an electroscope. The electroscope comprises an insulation rod (10), an electroscopic head (20) and a light-emitting element (30), wherein the electroscopic head (20) is arranged at one end of the insulation rod (10), and the other end of the insulation rod (10) is a holding end; the light-emitting element (30) is arranged on the electroscopic head (20). The electroscope further comprises a light guide element (40) and a light reflection element (50), the light guide element (40) is arranged on the insulation rod (10) in the length direction of the insulation rod (10), the light guide element (40) further comprises a first end and a second end opposite to the first end, the first end of the light guide element (40) faces the light-emitting direction of the light-emitting element (30), the light reflection element (50) is arranged at the holding end of the insulation rod (10), and the light reflection element (50) is connected with the second end of the light guide element (40). The electroscope solves the problem that in the prior art, alarming of a warning device cannot be easily noticed.

The invention discloses an underground coal mine fully mechanized mining face end mining and rapid withdrawing method. The method comprises the steps of S1, arrangement of a fully mechanized mining face; S2, end mining protection; and S3, quick withdrawing of the fully mechanized mining face. According to the method, protective measures and fully mechanized face withdrawing operation during roadway withdrawing and fully mechanized face end mining are optimally designed, the tunneling and supporting cost of an auxiliary withdrawing channel is reduced, the sinking speed of a top plate of the withdrawing channel is remarkably reduced, the floor heaving amount of the roadway is remarkably reduced, the labor intensity is reduced, the withdrawing time is shortened, the safety performance is improved, and the auxiliary withdrawing channel can be reused for the second time, so that the environment-friendly emission of solid waste is realized, and the emission cost of the solid waste is reduced.

The invention discloses an immersive remote control system and method for an excavator. The immersive remote control system comprises a remote control end and a controlled end, wherein the controlled end comprises an excavator and a main control computer, a controlled end wireless communication module and a microphone which are arranged on the excavator; the remote control end comprises a visual computer, a remote control end wireless communication module, a six-degree-of-freedom motion platform, a simulation cockpit arranged on the six-degree-of-freedom motion platform, a spherical screen arranged at the periphery of the six-degree-of-freedom motion platform and a spherical screen projection device arranged at the position, above the simulation cockpit and in the center of the spherical screen; a remote control operation device is arranged in the simulation cockpit; and the controlled end further comprises a tilt angle sensor arranged on the top of the excavator, and data collected by the tilt angle sensor are transmitted to the main control computer. By using the immersive remote control system disclosed by the invention, the immersion feeling of an operator can be effectively improved, the operator can well feel the posture of the excavator, and therefore the remote control operation efficiency and safety are greatly improved.

The invention provides an overhead fruit picking device. The upper end of a handle bar is provided with a pair of spring scissors, the spring scissors are provided with a pull rope which is connected with an operation handle at the lower end of the handle bar, and a mesh bag corresponding to the spring scissors is arranged above the handle bar. The invention can be used for picking fruits at the high position of a fruit tree. When in use, the handle bar and supporting armrests are held by hands, and the operation handle at the lower end is operated, so that the spring scissors can scissor off the fruits at the high position into the mesh bag, and the fruits flow into a fruit basket by the mesh bag. The invention has the characteristics of quick and convenient picking and favorable safety operation.

The invention discloses a gas-excessive alarm miner lamp circuit for mining operation, which comprises a first resistor, a second resistor, a third resistor, a potentiometer, a first audion, a second audion, a third audion, a first capacitor, a second capacitor, a relay, a diode, a power source, a gas sensor, a miner lamp and a switch. When the gas density exceeds the limits, the purpose of alarming for the excessive gas is achieved by flicking the miner lamp; when the miner lamp flicks, a miner cannot normally work, so that a function of forcing the worker to stop working is achieved and the safety operation for mining is benefited; the excessive alarm value of the gas is adjusted by adjusting the resistance value of the potentiometer; the gas-excessive alarm miner lamp circuit has a simple circuit structure and is low in manufacturing cost; the gas-excessive alarm miner lamp circuit has the characteristics of stable work property and high sensitivity and has the popularization and use values.

The invention relates to a disc type overload protection anti-impact speed reducer. The disc type overload protection anti-impact speed reducer comprises a box body, a worm wheel, an output shaft anda worm. A hollow shaft cavity is formed in the input end of the worm, the outer circumference of the hollow shaft cavity is supported on the box body through a bearing, the outer end of an input shaftis supported on the box body through a bearing, the inner end of the input shaft is coaxially rotationally supported in the hollow shaft cavity through a shaft sleeve or a bearing, multiple parallelcopper friction plates penetrate through the inner wall of the hollow shaft cavity through splines, multiple parallel steel friction plates penetrate through the input shaft through splines, the copper friction plates and the steel friction plates are sequentially attached alternately, an opening of the hollow shaft cavity is in threaded screwed connection with a pressure adjusting nut penetratingthrough the input shaft, and a disc spring abuts against the position between the inner end of the pressure adjusting nut and the steel friction plate or the copper friction plate at the outermost end. The disc type overload protection anti-impact speed reducer is compact in structure and convenient to adjust, protection of input impact and drive overload can be effectively taken into consideration, and the service safe life of the structure is guaranteed.

The invention discloses an electrically-driven hot-melting ruling machine which comprises a chassis assembly, a material barrel and a bead scattering device, wherein the material barrel and the bead scattering device are sequentially arranged at the top end of the chassis assembly from front to back, a glass bead box is arranged above the bead scattering device, a coating hopper assembly is arranged on one side of the material barrel, the chassis assembly comprises a chassis, a walking mechanism arranged at the bottom end of the chassis, a speed reducing mechanism and a brake mechanism, the speed reducing mechanism and the brake mechanism are connected with the walking mechanism, and the speed reducing mechanism is further connected with a driving motor and a clutch mechanism which are fixed to the top end of the chassis. According to the electrically-driven hot-melting ruling machine adopting the structure, the speed reducing mechanism and the brake mechanism are arranged, so that safe operation in the uphill and downhill processes is facilitated.

The invention discloses a high-voltage rubber jacketed flexible cable for a deicing device. The high-voltage rubber jacketed flexible cable comprises a power wire core conductor which is arranged in the center of the cable, wherein an inner shielding layer, an insulating layer and an outer jacket are sequentially sleeved outside the power wire core conductor; a conductive adhesive insulation shielding layer and an aluminum plastic composite belt are sequentially sleeved between the insulating layer and the outer jacket from inside to outside; and a drainage wire is arranged between the conductive adhesive insulation shielding layer and the aluminum plastic composite belt. The high-voltage rubber jacketed flexible cable for the deicing device provided by the invention is simple in structure and good in shielding effect, and complete shielding coverage is realized; and the electric field charge of a high-voltage cable can be guided and grounded by using the drainage wire which is added into the cable, the surface of the cable and the ground are equipotential, safety operation and cable protection are facilitated, and the service life of the cable is prolonged.

The invention discloses a novel dustproof mask comprising a front mask unit, a rear mask unit, an inspiration filtering valve, an expiration valve and an excessive dust alarming device. Shutters are arranged in the middle of the front mask unit; the excessive dust alarming device is installed on the inner side of the front mask unit adjacent to the shutters; the inspiration filtering valve and the expiration valve are arranged on the rear mask unit, and the front mask unit and the rear mask unit are connected correspondingly. The mask is capable of proofing dust, smoke and other particles effectively, and the wide application range is provided. When the dust intensity of surroundings is excessively high, a first light-emitting diode emits red light to warn operators in excessively high dust intensity of surroundings, operation is improper, operation in high dust intensity is eliminated, safety operation can be benefited for the operators, and the novel dustproof mask has the advantages of simple usage, easiness for washing and low manufacture cost and has the promotion and application value.

The invention discloses an outlet warning device of a steam trap, which is arranged at an exhaust port of the steam trap. The outlet warning device of the steam trap comprises a steam recovery mechanism, an electric generator and an indicating lamp, wherein the steam recovery mechanism comprises a shell and a transmission part; an end of the shell is provided with an air inlet; the other one end of the shell is provided with an air outlet; a steam impeller further is arranged in the shell; an end of the transmission part is connected with the steam impeller through a rotation shaft; the other one end of the transmission part is connected with the electric generator; and the indicating lamp is connected with the electric generator. Exhausted steam is collected by the steam recovery mechanism to reduce potential safety hazard caused by splashed steam. The steam impeller is driven to generate electricity by exhausted steam. The indicating lamp can indicate and light so as to be beneficial to safe operation of inspection personnel at night.

The invention discloses a self-lifting elevator shaft protection operation platform suitable for multiple calibers. The self-lifting elevator shaft protection operation platform comprises a lower stair and stand columns. The lower stair comprises two first inclined pipes which are obliquely arranged, second inclined pipes which are parallel to each other are further arranged between the two first inclined pipes, and a plurality of corridor stair steps are arranged between one of the first inclined pipes and the second inclined pipes; the self-lifting elevator shaft protection operation platform further comprises a fourth external thread steel pipe movably penetrating through the first inclined pipe, the second inclined pipes and the first inclined pipe in sequence; a plurality of stand columns are arranged in the circumferential direction and used for supporting the lower stair; and the multiple stand columns are provided with a plurality of horizontal telescopic pipes which are sequentially encircled to form a ring, and the multiple horizontal telescopic pipes are detachably connected with the stand columns. By the adoption of the scheme, the first inclined pipes can be suitable for different elevator shaft lengths, the fourth external thread steel pipe can be suitable for different elevator shaft widths, and the horizontal telescopic pipes can be suitable for different elevator shaft calibers, so that the purposes of being suitable for various elevator shaft mouths and capable of being turned over are achieved.

The invention discloses a logistics goods shelf convenient for taking goods and a using method thereof. The logistics goods shelf comprises a stand column and trays, wherein inserting columns are arranged on the two side walls of the stand column; a dust cover is arranged on the inserting columns; an energy-saving lamp is arranged at the inner bottom in the dust cover; a first rotating shaft is arranged between the stand columns; and a second rotating shaft is arranged under the first rotating shaft. The logistics goods shelf has the beneficial effects that through arranging the stand column,an installation plate, the first rotating shaft and the second rotating shaft, the logistics goods shelf can be rapidly and conveniently assembled to use, so that the defects of many assembling partsand time and energy consumption of assembling of an original goods shelf are overcome; a first motor, a second motor and the trays are arranged to make the shelf to be of a rotary structure, so that auser is capable of conveniently taking the logistics goods at any positions, safe operation is advantageously achieved, and physical power is saved; and through arranging an anti-turnover fixing barand a rotating clamping plate, the goods shelf can be flexibly fixed with a wall or the adjacent goods shelf and prevented from being knocked over.

The invention relates to a slide-block-type diameter changing expansion tool used for expansion pipes. The tool mainly comprises three parts of an upper tip cone, an expansion slide block and a lower bottom cone; the upper tip cone and the lower bottom cone are through hole cone structures; the expansion slide block is positioned between the upper tip cone and the lower bottom cone and is cooperatively connected with inclined plane ribs of the upper tip cone and the lower bottom cone through rib grooves; During expansion, the upper tip cone and the lower bottom cone move in opposite directions to push the expansion slide block to move radially so that diameter changing can be realized by the diameter changing expansion tool; an upper part of the upper tip cone and a connecting tube are provided with a locking mechanism for spacing locking the closed diameter expansion tool. Diameter changing is realized through the expansion slide block; the closing force of the tool is reduced; the locking mechanism is used for spacing the tool after closing so as to guarantee the uniform fixed diameter expansion of the expansion tube; at the same time, a first expansion cone and a second expansion cone are adopted to realize twin-stage isometric expansion, reduce expansion force of tubes, which is good for safe operation on site.