523results about How to "Job safety" patented technology

The invention discloses a drum frame supporting power built-in integrated jacking steel platform formwork system, comprising a steel platform, a support system, a suspended scaffold, a template system and a hydraulic jacking power system; the support system comprises a drum frame support and an internal framework support; the drum frame support is located under the steel platform, and comprises a steel platform support, an oil cylinder counter-force beam, a guide roller, a support steel column and a drum frame support beam; the internal framework support is arranged inside the drum frame support and located between the drum frame support beam and the oil cylinder counter-force beam; the hydraulic jacking power system comprises a hydraulic jacking oil cylinder and a power control system thereof; the hydraulic jacking oil cylinder is inverted between the oil cylinder counter-force beam and the internal framework support; telescopic brackets are arranged at the end portions of the internal framework support and the drum frame support beam, respectively; and the telescopic brackets are supported in a preformed hole in a shear wall. The drum frame supporting power built-in integrated jacking steel platform formwork system is capable of realizing the construction operation of a complex core drum, shortening the construction period and ensuring high altitude construction safety, and also capable of improving the green construction level.

The invention relates to a winch heave compensation device for an ocean floating drilling platform. The device comprises an active compensator and a passive compensator which are arranged on one side of a winch in parallel. The active compensator comprises a first single-rod piston cylinder with a piston rod stretching upwards and a force transducer, wherein two chambers of the first single-rod piston cylinder are connected to a hydraulic system through a three-position four-way magnetic exchange valve, and the force transducer is used for detecting force on a steel wire rope and electrically connected with a force feedback controller which controls exchange actions of the three-position four-way magnetic exchange valve. The passive compensator comprises a second single-rod piston cylinder with a piston rod stretching upwards. Tops of the piston rods of the first piston cylinder and the second piston cylinder are connected onto a movable pulley, a fixed pulley is further arranged on the drilling platform, and the steel wire rope on the winch is connected with a crown block and a traveling block after bypassing the movable pulley and the fixed pulley sequentially. According to the device, the compensation effect that active compensation and passive compensation are mutually synchronous and promoted can be achieved.

The invention discloses a central outside-vein house pillar type combined crosscut two-end inside-vein continuous segment filling mining method for medium-thickness inclined crushed phosphorus ores. The method comprises the following steps: dividing an ore into middle segments, dividing each of the middle segments into panels, dividing each of the panels into segments, dividing the center of each of the segments into ore houses and ore pillars, and dividing two ends of each of the segment along an inside-vein drilling ore-removal level non-pillar into recovery units; adopting a hanging side outside-vein trackless mining system which is formed by a panel ramp, a concentrated ore-removal ore-pass, segment levels at the central outside-vein and shifting to inside-vein at two sides, and an connection lane commonly used by the ore houses and the ore pillars; recovering the ore houses in the middle segments, filling close to back, and recovering the ore pillars; and carrying out parallel operations of technologies comprising drilling, exploding, supporting, ore removal, filling and the like of a plurality of the ore houses to realize continuous mining. The method disclosed in the invention has the substantial characteristics of improvement of the recovery safety and the panel productivity, reduction of the resource dilution rate and the mining-cutting ratio, increase of enterprise benefits and the like.

Disclosed is a method for producing a metal particle dispersion wherein a metal compound is reduced by using carbodihydrazide represented by the formula (1) below or a polybasic acid polyhydrazide represented by the formula (2) below (wherein R represents an n-valent polybasic acid residue) in a liquid medium. By reducing the metal compound in the presence of a compound having a function preventing discoloration of the metal, there can be obtained a metal particle dispersion having excellent discoloration preventing properties. Metal particles produced by such methods have a uniform particle diameter and are excellent in dispersion stability. By using a conductive resin composition or conductive ink containing a metal particle dispersion obtained by such production methods, there can be formed a conductive coating film, such as a conductive circuit or an electromagnetic shielding layer, having good characteristics.

The invention discloses a whole-section quick-drilling drill carriage specially used for parallel cut blasting of large empty holes in a roadway. The drill carriage is composed of a walking mechanism, a carriage frame, a hydraulic system, an electrical system and two drilling devices, wherein the first drilling device is used for drilling common blasting holes, and the second drilling device is used for drilling cut holes with the diameter of 100 mm or more. In the operating process of the drill carriage, a hydraulic motor drives a main chain wheel of a crawler-type walking chassis to rotate through a speed reducer; after a carriage body is stabilized, the first drilling device and the second drilling device are manipulated to select hole locations respectively; after the first drilling device and the second drilling device are located, the common blasting holes and the empty holes with the diameter of 100 mm or more can be drilled in rock simultaneously. The drill carriage is suitable for the roadway with the minimum section of 8 square meters and the maximum section of 23 square meters; by the adoption of a building block structural design, the drill carriage is convenient and fast to disassemble and assemble and convenient to transport; as a result, the drill carriage can be used when the length of the roadway under tunneling construction is seven meters or more, and accelerates tunneling mechanization and quick and efficient tunneling modernization.

The invention creatively discloses an automatic feed electric screwdriver which comprises a machine body (1), a screwdriver (4) and a fixed seat (2), wherein a sliding groove frame (3) is fixedly arranged on the fixed seat (2), a reset guide rod (17) which is parallel to the screwdriver (4) and can perform linear movement is arranged on the sliding groove frame (3), a reset spring (6), a screw disk positioning mechanism, a one-way ratchet component and a screw disk component (11) are sequentially arranged on the reset guide rod (17), the one-way ratchet component comprises a connecting seat (16), an upper ratchet (9) and a lower ratchet (10) which are sequentially sheathed on a limit sleeve (22), the limit sleeve (22) is sheathed on the reset guide rod (17), a connecting seat (16) is arranged on sliding grooves (5) on the two sides of the sliding groove frame (3), the connecting seat (16) is connected with the upper ratchet (9), the upper and lower ratchets (9, 10) are mutually meshed, and the screw disk component (11) is fixed on the lower ratchet (10). After the structure is adopted, the automatic feed electric screwdriver has the advantages of being simple and reasonable in structure, convenient to operate and use, fast in mounting speed, high in working efficiency and capable of operating with single hand and the like.

The invention relates to the technical field of steel structures in building industry and discloses a prestressed assembled middle column steel frame recoverable in function. The prestressed assembled middle column steel frame comprises a frame beam, two frame columns, an upper middle column, a friction energy-consuming device and a lower middle column, the frame beam is arranged horizontally, the frame columns are vertically arranged at two ends of the frame beam, the frame columns are movably connected with the frame beam, the upper middle column is vertically arranged below the frame beam, the top of the upper middle column is fixedly connected with the frame beam, and the upper middle column, the friction energy-consuming device and the lower middle column are sequentially connected from top to bottom. Rigidity of the whole steel frame can be enhanced; energy dissipation of the steel frame can be improved through the friction energy-consuming device, so that overall deformation degree of the prestressed assembled middle column steel frame is lowered greatly, in other words, inter-layer displacement angle response is reduced, stability of a whole building is improved, designing requirements are met, and safety in operation can be guaranteed.

The invention discloses an industrial robot control system. The industrial robot control system comprises a robot and a controller, wherein the robot and the controller are separated from each other; the robot comprises a main control module, a communication module and an execution module; the controller comprises an input unit, a transmission unit, a fault detection unit, a display unit, a storage unit, a main control unit and an intelligent planning unit. According to the industrial robot control system provided by the invention, a control mode is flexible, and the intelligent degree is high; an input mode comprises a key-press input mode, a handwriting input mode and a voice input mode; the fault detection unit can be used for detecting the performance and the state of the robot online, and the operation accuracy and the operation safety of the robot are ensured; the intelligent planning unit is used for applying an artificial intelligence technology to track planning of the robot, the working mode of a traditional industrial robot that the working is inflexible, the operation just can be carried out according to an established procedure, and a response to the change of an environment cannot be carried out can be changed, an optimal track can be autonomously planned, and the service life of the robot can be prolonged.

The invention discloses a mounting platform of an unmanned airplane. The mounting platform comprises a gravity center adjustment assembly and a hanging assembly for hanging articles. The gravity center adjustment assembly is connected with a fuselage. The hanging assembly is hung onto the gravity center adjustment assembly. The gravity center adjustment assembly is provided with a plurality of first hanging parts for adjusting the horizontal position of the hanging assembly. The mounting platform is simple in structure and can be applied to the unmanned airplane, wherein the gravity center thereof can be quickly adjusted. Therefore, different articles can be hung onto the hanging assembly. Meanwhile, the mounting platform is good in damping and shock-filtering effect and is particularly suitable for the hanging of heavy articles.

The invention discloses a construction method of a gravel grouting pile. The construction method comprises the following steps: (1) preparing for construction, (2) conducting measurement, paying off and positioning of the pile, (3) embedding a protective canister, (4) placing a drilling machine in place, (5) forming a hole by drilling, (6) cleaning the hole at a time, (7) placing a grouting pipe, (8) placing an anchor bar, (9) putting gravels in the hole, (10) installing a pile cap connecting steel pipe, (11) cleaning the hole, (12) conducting pressure grouting, (13) pulling the grouting pipe out, (14) constructing a pile cap, and (15) conducting detection and acceptance inspection on the finished pile. According to the construction method of the gravel grouting pile, the construction speed is high, the construction period is shortened, and compared with soft foundation treatment such as a prestressed pipe pile and a Y-type pile, the engineering investment is saved; the labor intensity is low, the construction is safe, and the construction method can be widely popularized and used; the gravel pile formed by cement and gravels is high in integrality and stability. The engineering drilling machine is adopted in a soft foundation to drill the hole in a rotating and cycling mode to form the pile, the disturbance to the foundation and the surrounding buildings is small, ground depression is controlled, and the construction method is small in vibration and low in noise during the construction and has good social benefits.

The invention discloses a current measuring device. The current measuring device comprises a clip-on ammeter, an insulating handle and a pull wire, wherein the clip-on ammeter is provided with a tongs head, the tongs head comprises a fixed bayonet and a moving bayonet, and the moving bayonet is provided with a clamping piece used for opening the tongs head; the upper end of the insulating handle is hinged to the clip-on ammeter; the head end of the pull wire is connected with the clamping piece and used for pulling or pressing the clamping piece to open the tongs head. The current measuring device can make the clip-on ammeter close to overhead electrical equipment by the utilization of an insulating rod to perform measurement, a measurement worker does not need to be close to the overhead electrical equipment for measurement, and the current measuring device is more convenient and safe to use in operation.

The invention discloses a linear hoisting device of a goose-neck jib lorry-mounted crane. The linear hoisting device comprises an operating device, a sensor part, a processor part and an actuator part, wherein the operating device, the sensor part and the actuator part are connected with the processor part respectively. A steel wire rope of a crane with an extra hoisting mechanism easily swings under the action of wind load when the steel wire rope is lengthen, on the contrary in the prior art. By the linear hoisting device, relative positions of a hoisting load and a hoisting hook are kept basically unchanged, so that the operation process is safer and more stable. In addition, the linear hoisting device is more space-saving than the manner of adding the extra hoisting mechanism, an angle sensor, a length sensor, a controller and the like adopted by the linear hoisting device are applicable to a crane moment limiter, no extra parts are needed, and accordingly device cost is saved effectively.

The invention discloses a method for quickly assembling an assembled corrugated culvert. The method comprises the following steps: a. assembling the corrugated pipe unit pieces into single pipes; b. longitudinally assembling the single pipes into the culvert; c. coating waterproofing agent on the joint of the culvert; d. coating waterproofing agent on the outside of the culvert; e. inspecting and accepting the assembled culvert. The method has the following beneficial effects: the corrugated pipe unit pieces in the step a are placed on assembling equipment to be assembled, with the axes being horizontal, and when the corrugated pipe unit pieces are assembled on the assembling equipment, the operators stand to operate, so the operation labor intensity is low and the efficiency is high; in the step b, the roller type prong forklift is adopted to transport the single pipes, so the equipment utilization ratio is high and the single pipes are fast and convenient to transport, meanwhile, dislocation adjustment is carried out on the roller type prong forklift, so the adjustment speed is high and the electroplated anticorrosive coating of the corrugated pipe can not be damaged, and bolted connection is carried out on the lifting working platform of the forklift and the crawling ladders at the two sides, so the operation is safe and the efficiency is high; and the waterproofing agent and a preservative are coated on the culvert, so the quality of the culvert can be ensured, and finally the culvert is inspected and accepted, so the quality of the culvertcan be further ensured.

The invention discloses a multifunctional stringing pole-erecting machine which comprises a power operation vehicle with a walking chassis, wherein the lower part of the walking chassis is provided with walking wheels, the rear part of the walking chassis is provided with a power mechanism and a driving control chamber, the front part of the walking chassis is provided with a rotary support, the power mechanism is in transmission connection with the walking wheels through a transmission shaft under the walking chassis and a transfer case, the power mechanism is in hydraulic transmission connection with the rotary support, a rotary base is arranged on the rotary support, a pole lifting device is rotatably connected to the rotary base, the lower part of the pole lifting device is provided with a drilling mechanism, and the front end and the rear end of the walking chassis are respectively provided with a foldable front support leg and a foldable rear support leg. The multifunction stringing pole-erecting machine is a power grid stringing construction mechanical device integrating drilling and pole erecting, is integrally of an electrohydraulic control mode, is especially suitable for emergence rush repair when a power grid suffers from natural disasters, and is more suitable for environment with larger pole-erecting operation density in rugged and narrow places and places into which construction vehicles can not enter.

The invention discloses a minitype remote-control chain-type tractor. A belt variable speed case is arranged between an engine and a gear box, wherein the engine transmits power to the belt variable speed case by a main clutch and drives two drive sprockets of a crawler by two steering clutches; the main clutch, the middle driving wheel of the belt variable speed case, the steering clutches, agricultural implement lifting and an engine revolving speed control accelerator are all driven by a small hydrocylinder; the small hydrocylinder is controlled by solenoid directional valves, and each solenoid directional valve is provided with a radio frequency remote control receiver and a remote control unit for remotely controlling or manually controlling. The minitype remote-control chain-type tractor can pass through fruit trees and under crowns, can conveniently finish operation items of weeding, loosening the soil, fertilizing and the like and is especially suitable to use in low orchards and greenhouses with thick planting.

The invention discloses a hot fogging concentrate containing cypermethrin, which is prepared by using cypermethrin or the mixture of cypermethrin and an active component II as the effective constituent, and adding accessory ingredient and solvent, wherein the active component II is any one of chlorpyrifos, dimethoate and nitenpyram. By using the cypermethrin as the effective constituent, the hot fogging concentrate comprises the following components by weight percent: 1.6-30% of cypermethrin, 1-20% of accessory ingredient and the balance of solvent. By using any one of the cypermethrin and the active component II as the effective constituent, the hot fogging concentrate comprises the following components by weight percent: 0.1-20% of cypermethrin, 0.1-40% of active component II, 1-20% of accessory ingredient and the balance of solvent. The hot fogging concentrate disclosed by the invention is applicable to a hot fogging machine for preventing insect pests on sugarcane, corn, tobacco, fruit trees and forests. The hot fogging concentrate has the advantages of high working efficiency, strong knock-down activity, synergetic effect, good preventing effect, simpleness in operation, water and labor saving, safety, environmental friendliness, and the like.