60results about How to "Reduce man-hour consumption" patented technology

The invention discloses a method for filling and mining after ore caving, which includes the following steps: exploiting; mining quasi work; cutting work: including excavation of mine collection trench and patio cutting, cutting a patio at one end portion of a rock drilling chamber, cutting the patio by using a vertical deep hole ore falling stage chamber method, and enabling patio cutting to provide sufficient compensation space for actual mining; chamber extraction work: constructing a downward blasthole in the rock drilling chamber, filling and blasting, one-time blasting charging at the entire middle section height of the blasthole, and enabling blasting to adopt one-time lateral blasting and ore removal; filling and maintaining: closing all outlets communicated with a lower mine of the empty area, burying strainer pipes, leading in filling pipelines from the upper portion of the chamber, and filling and maintaining the chamber; and pillar recovery: recovering pillars after filling and maintaining the chamber, and the pillar recovery is the same as the chamber extraction work. The method for filling and mining after ore caving is high in recovery rate of mineral resources, small in blasting impact effect, low in cost and high in production efficiency.

The invention relates to a pressurized gas nitrocarburizing method, belonging to the technical field of heat treatment of materials. The method is suitable for quickly nitrocarburizing on surface layers of steel workpieces, the main technical characteristic is that the method contain a procedure and the procedure comprises the following steps sequentially: sealing, checking safety, heating an empty furnace, charging, exhausting gas, pressurizing and heating, keeping heat and cooling. In the step of heating the empty furnace, the temperature in the furnace is controlled within 400 DEG C-500 DEG C, and the temperature of the empty furnace is kept for 0.5-1 hour; in the exhausting step, gas carbon dioxide and ammonia gas are respectively introduced in a gas inlet valve (2) and a gas inlet valve (3) to the inner bottom of a nitrocarburizing furnace through a gas inlet pipeline 1, and the air in the furnace is exhausted by a gas exhaust pipeline 7; in the pressurizing and heating step, the pressure is 5000Pa-60000Pa, the temperature is 500 DEG C-600 DEG C; and in the heat insulating step, and the heat insulation time is 1.5-3 hours. The invention has the advantages of simple technology, high nitrocarburizing speed and the like, can be used to obviously shorten the heat insulation time, effectively save the energy and the working hours, and reduce the production cost.

The invention discloses a ship manufacturing method for pre-mounting a steering engine base in a segmentation step. The ship manufacturing method comprises the following steps of: carrying out segmentation on a deck of a steering engine room; drawing a gantry arrangement and reinforcement picture of an upper gantry of the deck of the steering engine room at a positive segmentation state; incorporating the gantry arrangement and reinforcement picture with a segmental fitting-out tray management list so as to ensure that the pre-mounting of the steering engine base is completed in a segmental manufacturing step, and the requirement on installation precision can be met; and conveying the deck of the steering engine room in a segmental manner to a next process in a positive state of the upper gantry. The steering engine base is welded before being coated in a segmental manner, so that the segmental fitting-out integrality can be improved. Therefore, the damage area of a coating layer of a ship stern ballast cabin is reduced, the risk of sand wash on the entire ship stern ballast cabin can be effectively reduced, a coating construction period is shortened, and a PSPC (Performance Standard for Protective Coatings) can be met.

The invention relates to a processing technology of a gear lever bushing. The processing technology comprises following steps: (1), discharging; (2), primary turning; (3), secondary turning; (4), tertiary turning; (5), inner hole processing; (6), inner hole diameter precision detection; (7), inner hole diameter roundness detection; (8), inner hole surface finish detection; (9), washing. According to the processing technology of the gear lever bushing, raw material consumption, labor-hour consumption and rejection rate can be reduced, and processing precision and production efficiency are improved.

The invention discloses an auxiliary guide wheel abrasion part which is prepared from modified thermoplastic materials by injection molding or compression molding. The modified thermoplastic materialscomprise, by weight, 100 parts of matrix resin, 0.1-0.5 part of antioxidants, 0.1-20 parts of fire retardants, 0.1-10 parts of abrasion-resistant agents and 0.1-3.5 pasts of additives. The auxiliaryguide wheel abrasion part is directly injected and molded without extruding and granulating, and modified additives are added by a master batch mode. The thermoplastic materials have a low friction coefficient and a flame-retardant function and are excellent in abrasion resistance and simple in manufacturing process. The prepared abrasion part wraps an outer ring of an aluminum alloy support, abrasion of the support and a cement track beam caused by direct contact between the support and the cement track beam can be avoided, and the running noise of a vehicle is low. The abrasion part is convenient to replace and low in cost, labor-hour consumption is reduced by 60%, the cost is reduced by 90%, and repair and maintenance cost can be effectively reduced.

The invention relates to an out-of-bottle bag rooting method for tissue culture seedlings of Europe and America hybrid aspens. The method is to the problem that the cultivation cost is high, the production phase is long and the survival rate of transplanting of tissue culture seedlings is low in a tissue culture process of the Europe and America hybrid aspens. The method comprises the following steps: 1, plastically packaging the bottom of polypropylene plastic bags with a sealing machine to manufacture rooting culture bags; 2, mixing peat soils with sands, sterilizing at high speed to obtain composts and packing the composts into the rooting culture bags; 3, burrowing in the composts in the culture bags and wetting each hole with rooting culture solution; and 4, taking out the tissue culture seedlings of the Europe and America hybrid aspens from culture mediums, planting the tissue culture seedlings into the holes of the culture bags, sealing the top of the culture bags with the sealing machine, placing in greenhouses to culture for 5-7 days, gashing the top of the culture bags and then culturing for 8-10 days to obtain the rooting seedlings of the Europe and America hybrid aspens. The method is used in the field of asexual propagation of the Europe and America hybrid aspens.

The invention discloses a cable eccentricity detection device comprising a screw rod and a nut. Two ends of the screw rod are fixedly erected on a bracket; an eddy current sensor is fixed on the nut;belt wheels are arranged below the two ends of the screw rod; and a conveying belt is wound on the belt wheels in a tensioning manner. A motor can drive the conveyor belt to convey the cable in the screw rod; a spring ejector rod rotates along with the conveying belt and can pass through a through hole formed in one end of the screw rod and push the nut to slide simultaneously; a touch switch is trigger simultaneously to trigger an eddy current sensor; the eccentricity degree of the cable core can be reflected through a range value, measured by the eddy current sensor, of the displacement signal of the cable core. The spring ejector rod is pushed by a flange to retract into the screw rod, so that the nut slides and resets under the effect of the spring. A processor is arranged and is usedfor receiving a displacement signal measured by the eddy current sensor and calculating the range value of the displacement signal; and the processor is further provided with a display screen for displaying the range value so as to achieve the function of non-destructive on-line real-time automatic detection of the eccentricity of the cable.

The invention relates to an auxiliary device for manufacturing a main bearing oil feeding pipe of a marine diesel engine and a method for manufacturing the main bearing oil feeding pipe. The auxiliary device comprises a bottom plate, supporting pipes fixed on the bottom plate and supporting pipe flanges fixed on the supporting pipes, wherein the bottom plate is a rectangular straight and rigid plate, and the length of the bottom plate is equal to that of the bearing oil feeding pipe; the supporting pipes are cylindrical steel pipes; the plurality of supporting pipes are vertically fixed on the bottom plate; the distance between every two supporting pipes corresponds to that between every two supporting pipes on the main bearing oil feeding pipe; supporting pipe flanges which is of the same type with flanges on the main bearing oil feeding pipe are arranged at the tops of the supporting pipes; and in the manufacturing method, a first tool in the auxiliary device adopts a rack manufacturing unit to weld the main bearing flanges, a second tool adopts a pipe piece manufacturing unit to manufacture a main bearing oil feeding principal pipe, and finally general assembly is carried out. By the auxiliary device and the manufacturing method, the production accuracy and the production efficiency of the bearing oil feeding pipe of the marine diesel engine are improved.

The invention discloses a compound shaft sleeve structure of a magnetic suspension motor rotor. The compound shaft sleeve structure comprises a transition sleeve body, a magnetism isolating ring and adetection ring. The magnetism isolating ring and the detection ring are separately arranged on two sides of the transition sleeve body and are in interference fit to the transition sleeve body; the detection ring is arranged on the transition sleeve body in a sleeving mode, and the outer wall surface of the detection ring is aligned to the outer wall surface of the transition sleeve body; one endof the magnetism isolating ring penetrates the transition sleeve body and the outer wall surface of the magnetism isolating ring is aligned to the outer wall surface of the transition sleeve body; the transition sleeve body is made from high alloy steel, the magnetism isolating ring is made from austenitic stainless steel, and the detection ring is made from a nickel-based alloy. By utilizing thecharacteristics of different materials reasonably, the materials draw on each other's strength through a structural design, so that the integral optimum performance is achieved. The compound shaft sleeve structure is low in cost of parts and easy to produce, and the output is improved.

The invention discloses a symmetric integrated crushing system, mainly comprising a vertical hoister, a horizontal crusher, a center body, a negative pressure powder removing device and a grading and vibrating screen, wherein the vertical hoister, the horizontal crusher, the center body, the negative pressure powder removing device and the grading and vibrating screen are arranged on a same frame and form a stereoscopic structure. Two lateral discharge holes are respectively connected with a left feed inlet and a right feed inlet of the center body, so material crashing and crushing zones are further formed in the center body, and the area of a bottom outlet of the center body matches with the area of a screen surface of the grading and vibrating screen. The crushing system is of a totally-enclosed structure. The symmetric integrated crushing system provided by the invention has the advantages of a compact designed structure, easy and convenient installation, good adaptability, good sealing performance, uniform granularity of a discharged material, great production capacity, a high crushing ratio, environment friendliness, conservation of energy and capacity of saving more than 30% of energy.

The invention provides a rotary tool for welding. The rotary tool for welding comprises a support, an operation table and a plurality of compressing units, wherein a positioning groove is formed in the middle part of the bottom of the operation table; the positioning groove is hinged to the upper part of the support; a positioning unit is arranged at a hinge position between the operation table and the support; the plurality of compressing units are connected to the operation table in a sliding way respectively. By adopting the rotary tool for welding, the labor intensity and labor force during welding of large-sized welded parts can be lowered greatly, and the welding efficiency is increased.

The present invention discloses cold rolling forming method for tapered roller bearing inner ring, comprising the following steps of: S1, dividing the ring blank into a smoothly connected ring blank small cylinder, a ring blank small round table body, a ring blank large round table body and a ring blank large cylinder in the height direction sequentially; S2, forming a rolling groove by the working surfaces of a drive roller, a core roller and a guide roller. The drive roller, the core roller and the guide roller are both designed as an I-shaped structure, the working surface shape of the drive roller and the guide roller is consistent with the shape of the outer surface of the inner ring member, the working surface shape of the core roller is consistent with the shape of the inner surfaceof the inner ring member. The flanges at the upper and lower ends of the drive roller and the core roller and the guide roller are axially constrained to the both faces of the ring blank, respectively, driving roller to rotate. At the same time, the core roller performs the radial feed motion to perform cold rolling forming on ring blank. The cold rolling forming method for tapered roller bearinginner ring has the advantages that forming precision is high, and product quality, material utilization rate and processing efficiency can be improved.

The invention provides a method for treating oxide layers of a multilayer heat treatment surface of an explosive composite plate. The method includes: polishing the metal multilayer surface by the aid of a polishing tool before heat treatment of the explosive composite plate; and then carrying out heat treatment. The explosive composite plate is obtained by the aid of the technological method after heat treatment, the multilayer surface is transparent or semi-transparent and lightly brown and white, and an oxide cover is thin, appears similar to a 'floating rust' layer on the metal multiplayer surface, does not need to be treated or can be slightly treated by a mechanical method or a chemical method. The method is simple in process and convenient in operation, materials and working hours are remarkably saved, and loss of the thickness of the multilayer surface is greatly reduced. In addition, the oxide cover of the explosive composite plate can be effectively prevented during heat treatment, consumption of materials and consumption of working hours are reduced, labor intensity is reduced, and production cost is saved.

The embodiment of the invention discloses a workpiece surface roughness control method and device and numerical control machining equipment. The workpiece surface roughness control method comprises the steps: cutting parameter data of a workpiece to be machined, cutter surface roughness data and corresponding workpiece surface roughness data are acquired; a workpiece surface roughness model is established according to the cutting parameter data, the cutter surface roughness data and the workpiece surface roughness data; the workpiece surface roughness model is optimized with machining time andmaterial removal rate as a target function to obtain the optimized workpiece surface roughness model; and according to workpiece target surface roughness and the optimized workpiece surface roughnessmodel, self-adaptive variable particle swarm optimization algorithm is combined, and cutter target surface roughness and target cutting parameters are determined, so that the machining equipment canmachine the workpiece to be machined according to the cutter target surface roughness and the target cutting parameters. According to the workpiece surface roughness control method, workpiece surfaceroughness can be accurately controlled.

The invention proposes a processing method for a fire-fighting spray cooling device. Processing steps: 1. Weld flanges at both ends of the straight pipe; 2. Put the straight pipe after welding the flange on the pipe bender and bend it according to the design arc to make an arc bend; 3. On the arc bend Drill holes according to the angle, spacing and aperture required by the design; 4. Use the self-heating rotary extrusion die to perform rotary extrusion and stretching on the drilled holes to make the nozzle interface; 5. The nozzle after extrusion and stretching Sprinkler interface threads are processed in the interface to make nozzle interfaces with connection threads. In this method, the flange is welded on the straight pipe first, and then the pipe is bent, and the nozzle interface is formed by hot extrusion and stretching on the curved pipe. It has the advantages of less processing links, easy to grasp the processing position, reducing the consumption of working hours, reducing labor intensity, and ensuring the processing quality. It is suitable for production and processing of fire sprinkler cooling devices and other fire fighting equipment.

The invention relates to a steel reinforcement cage for construction. The steel reinforcement cage comprises a plurality of circular steel bars and a plurality of first steel bars, which are arrangedin a ring shape. The first steel bars are fixedly welded to the circular steel bars. The circular steel bars are sequentially and uniformly arranged along the length direction of the first steel bars.The provided steel reinforcement cage is prefabricated in a factory, automatic bending and welding facilities are used to produce the steel reinforcement cage, the efficiency is largely improved, andthe consumption of onsite labor and time is reduced.

The invention relates to a liquid injection device. The liquid injection device is characterized by comprising a rotation transmission mechanism, wherein the rotation transmission mechanism comprisesa turntable, a plurality of jigs are uniformly arranged on a surface of the turntable, a loading and unloading mechanism, an expansion liquid injection mechanism, a vacuum-pumping liquid injection mechanism and a vacuum-pumping sealing mechanism are arranged on the turntable according to a process, and the jig positions are in one-to-one correspondence to the mechanisms. A machine originally requiring large occupancy area is highly integrated with a system, the limited space is utilized to the maximum extent by application of the turntable and a scale division assembly, meanwhile, the liquid injection process flow is optimized, the original multi-step complicated process is further simplified and integrated, the production efficiency is improved, and the time consumption is reduced.