51results about How to "Meet the needs of working conditions" patented technology

A multifunctional tunnel rock drilling frame-arch integrated machine, comprising a host platform (2) set up on a chassis (1), the rear of the host platform is provided with two booms (6) through a slewing seat (5), said The jib can be folded and retracted when it is running or at rest; the front end of the forearm is slewing and equipped with an arch grabbing device (18), a rock drilling device (19), a manned platform (24), and a truck-mounted crane (23). The invention can carry out the arch support operation when excavating the full section of the tunnel, two steps, and three steps. Through the cooperation of the two arm frames and the working devices on them, the arch frame can be transported with the vehicle, the arch frame is installed, and the steel bars are hung. Drilling and installation of mesh, welded transverse reinforcement, anchor rod and advanced small conduit, and the efficiency is much higher than that of manual labor.

The invention relates to the technical field of ultrasonic flaw detection equipment. An ultrasonic flaw detection apparatus comprises a portable ultrasonic detector and a detection probe, and also comprises a magnetic gauge stand and a movable support installed on the upper end face of the magnetic gauge stand; a free end of the movable support is provided with a clamping device; one end of the detection probe is installed in a chute at the end of the clamping device and is connected with an adjusting spring; and the periphery of a working end of the detection probe is provided with a plurality of spray pipes which are fixedly connected with the movable support and communicated with an automatic water tank. The ultrasonic flaw detection apparatus is simple in structure, convenient to adjust and rapid in mounting and dismounting, and is capable of satisfying requirements of most of working conditions, especially flaw detection requirements of relatively large specification aluminium rods.

The invention discloses a quasi-crystal abrasive paste applicable to the surface mechanical finishing of soft metals, and the adopted abrasive material thereof is a quasi-crystal alloy powder material. The quasi-crystal abrasive paste comprises a quasi-crystal alloy and related phase materials; the granularity of a powdered abrasive material is less than or equal to 50mu m; the mass percentage of the quasi-crystal powdered abrasive material in the abrasive paste is 1-90%, and the balance of the abrasive paste refers to abradant auxiliary materials such as oil-soluble or water-soluble pastes and the like. According to the invention, based on the unique grinding behavior and mechanism, the abrasive paste has an efficient mechanical finishing and defect repair capacity to the surfaces of soft metals/alloy specimens or workpieces; and compared with traditional abrasive materials, a surface finishing effect required by workpieces can be achieved efficiently, and the erosion amount is low, therefore, the abrasive paste is applicable to the surface finishing of high-precision workpieces, namely, the dimensional accuracy of workpieces can be kept while the surface quality of workpieces is satisfied. The abrasive paste disclosed by the invention has the characteristics of high stability, high liquidity, no adhesiveness and easiness for cleaning, therefore, the abrasive paste is an ideal grinding material for the mechanical finishing of soft materials.

The invention provides a method for obtaining a gas-liquid phase interface in a micron capillary channel. The pressure or flow velocity of the gas-liquid two-phase flow process in a micron-scale capillary channel guide is controlled by a dynamic testing device, and the phase interface shape is obtained under the conditions of low capillary number and low Bond number for the first time. Phase interface shape calculation based on an image processing method is adopted for the first time, and the data processing efficiency and measurement accuracy are greatly improved. The invention also providesa variety of algorithms for control of two-phase flow pressure control and electric platform speed control, and the flexibility of actual operation is improved to meet the requirements of various working conditions.

The invention relates to a diesel engine high-pressure fuel control booster pump. The diesel engine high-pressure fuel control booster pump comprises a shell and is characterized by further comprisinga pressurizing coupling part, an electromagnetic valve assembly and a pressure relief assembly; the pressurization coupling part comprises a booster pump body, a pressurization plunger and a spring;a pressurization plunger cavity and a pressurization cavity which are mutually independent are formed between the pressurization plunger and the booster pump body, and the spring is positioned in thepressurization cavity; a pressure relief passage communicated with the pressurization plunger cavity and an oil return passage communicated with the outside of the booster pump body are arranged in the booster pump body; and the pressure relief passage is in communication with the oil return passage through the electromagnetic valve assembly through controlling the pressure relief assembly, and the pressurization plunger drives the pressurization cavity to realize fuel pressurization due to pressure differential motion. According to the diesel engine high-pressure fuel control booster pump, the fuel pressurization time and the frequency can be accurately controlled, the fuel injection laws of all the working conditions of the diesel engine can be matched, the fuel can be fully combusted, and the pollution can be reduced; the diesel engine high-pressure fuel control booster pump can be suitable for various high-pressure fuel systems with different supercharging ratios, and is compact instructure, good in reliability, flexible in control, fast in response and convenient and rapid to install.

The invention discloses an overall test and data testing device for a large-tonnage horizontal directional drilling machine. The overall test and data testing device comprises a basic connecting plate, a power input connector, a carriage, a dynamometer, a computer torsion control circuit, a computer torsion control operating table, a computer push-pull force control operating table, a computer push-pull force control circuit, a push-pull force sensor and a hydraulic damping system. The hydraulic damping system is composed of a damping oil cylinder, a hydraulic pipeline and a hydraulic station. The torque, the rotating speed and the power of the dynamometer are connected to the computer torsion control operating table through the computer torsion control circuit, and signals of the push-pull force sensor of the hydraulic damping system are input in the computer push-pull force control operating table through the computer push-pull force control circuit. After power is input in the overall test and data testing device for the large-tonnage horizontal directional drilling machine by the horizontal directional drilling machine, overall tests and testing can be conducted on push force and pull force of the horizontal directional drilling machine and the output torque, the rotating speed and the power of a power head of the horizontal directional drilling machine.

The invention discloses a high-frequency electromagnetic induction straight hot press heating plate. The high-frequency electromagnetic induction straight hot press heating plate comprises a steel plate and a high-temperature electromagnetic wire; a row of wire holes penetrating through the steel plate are formed in the positions, parallel to the upper surface and the lower surface, of the middleof the steel plate and are distributed at equal intervals, and the distance between centers of every two adjacent wire holes is 5-10 cm; when the distance between centers of every two adjacent wire holes is 5-8 cm, the high-temperature electromagnetic wire is threaded through the wire hole according to the principle that the current direction of every two adjacent holes is consistent as much as possible, and the two ends of the high-temperature electromagnetic wire are connected with a high-frequency heating power source and a controller. According to the high-frequency electromagnetic induction straight hot press heating plate, through the wire hole forming mode, the self structure of the steel plate is not changed as much as possible, and it is ensured that the mechanical property of thesteel plate is not changed; and meanwhile, it can be ensured that electromagnetic energy is absorbed by the steel plate sufficiently and converted into heat energy, the whole steel plate is uniform in heating, and an existing flat hot pressing plate is transformed advantageously.

The invention relates to a test method for verifying ejection separation of a cruise aircraft assembly. The test method comprises the steps of S1, simulating an actual aircraft by adopting an aircraftmass characteristic simulation tool; S2, adjusting the position of the mass center of the aircraft mass characteristic simulation tool relative to an ejection point to be consistent with that of an actual aircraft; S3, installing a catapult to the position of a connecting interface of the aircraft mass characteristic simulation tool, and applying pre-tightening force the same as that of installation of the actual aircraft; and S4, installing a thrust sensor at the other end of the catapult, then placing the aircraft mass characteristic simulation tool on four pulleys, and installing the thrust sensor on an ignition test bed. According to the method, the specially designed aircraft mass characteristic simulation tool is concise in form and large in adjustable range, and can meet the requirements of multiple working conditions; adopted instruments and equipment are measuring tools commonly used in a laboratory; the test method is very easy to implement, so that the test method has relatively high popularization and application values.

The invention discloses an integrated technique for hard alloy brazing and heat treatment for a cutting pick. The technique is characterized by including the steps of A, feeding; B, die forging; C, machining; D, hard alloy brazing; E, heat treatment; F, surface treatment. The technique has the advantages that brazing quality is improved greatly, technical indexes of heat treatment meet the condition requirements, productivity is improved effectively, production cost is reduced, work environment is improved, and environmental pollution is reduced greatly.

The invention discloses a fabricated concrete-filled steel tube combination column and a splicing method. The fabricated concrete-filled steel tube combination column comprises a concrete-filled steeltube prefabricated part which is spliced into a whole by means of being defined by at least two concrete-filled steel tube columns, and after defining and splicing, the section of the concrete-filledsteel tube prefabricated part is externally square and internally circle. Through holes are formed in a rectangular steel plate and an arc-shaped steel plate, the rectangular steel plate and the arc-shaped steel plate are formed through welding, and then reinforcements are welded to the internally-sunken side of the arc-shaped steel plate. The multiple concrete-filled steel tube columns forms theconcrete-filled steel tube prefabricated part with the section being externally square and internally circle in defined and spliced modes, and then screws are connected into the through holes formedin the rectangular steel plate and the arc-shaped steel plate in an inserted mode to be fixed. A pouring material is injected into the concrete-filled steel tube prefabricated part. According to the fabricated concrete-filled steel tube combination column, the constraint effect of internal circular steel tubes on the pouring material in a core area can be ensured, and the advantage of the rectangular section on building arrangement can also be developed.

The invention provides a measuring method for a contact angle of a gas-liquid phase interface in a micrometer capillary passage. The pressures or flow speeds of flowing processes of a gas phase and aliquid phase in a micrometer-scale capillary are controlled by using a dynamic testing device, and the dynamic contact angle measurement in the states of small capillary number and small Bond number is realized for the first time. The measurement for the contact angle and phase interface speed based on an image processing method is firstly adopted, so that the data processing efficiency and the measuring precision are greatly improved. The invention further provides various algorithms for controlling the pressure of a two-phase flowing process and the speed of an electric platform, so that theflexibility during actual operation is improved, and furthermore, demands under various working conditions are met.

The invention provides a method for determining the relationship between pressure and flow in a micron capillary channel. According to the method in the invention, control on the pressure or the flowspeed in a gas-liquid two-phase flow process in a micron capillary is realized by utilization of a dynamic test device; a method for obtaining a phase interface and phase interface displacement is provided; obtaining of the phase interface shape under the states of low capillary number and low bond number is realized for the first time; phase interface shape calculation and speed calculation basedon an image processing method are adopted for the first time; therefore, the data processing efficiency and the measurement precision are greatly increased; due to determination on the speed, the contact angle and the displacement of the phase interface, the relationship between the pressure and the test liquid flow in the micron capillary channel can be determined; therefore, a control system directly controls and adjusts pressure change according to the flow; an experimental process and a speed control algorithm of a movable base are simplified; the actual operation flexibility is improved;and requirements of all kinds of working conditions can be satisfied.

Disclosed is a novel reaction furnace for preparing carbon disulfide. The novel reaction furnace comprises a reaction furnace body and the like, the reaction furnace body is a radiation section of thereaction furnace, and connected with an impact section, the impact section is connected with a convection section, and a lining is installed in the reaction furnace body, the impact section and the convection section; a plurality of burners are installed on the side wall of the reaction furnace body, a furnace pipe of the radiation section is installed in the reaction furnace body, a furnace pipein the impact section is connected with the furnace pipe of the radiation section, and a material enters the furnace pipe in the impact section; the convection section is connected with a preheater through a flue duct, and the preheater is connected with a chimney through an induced draft fan; an air inlet tower is connected with a burner blower which is connected with the preheater; the preheater is connected with the burners through a pipeline and provides hot air for the burners, and the hot air and natural gas entering the burners are mixed for burning. The novel reaction furnace is usedfor preparing carbon disulfide, on the premise of meeting process performance requirements, the heat distribution of a temperature field is more uniform, the quality of the carbon disulfide product ishigher, the exhaust smoke temperature and the heat dissipation loss are reduced, and the overall thermal efficiency of the reaction furnace is improved.

The invention relates to a transmission device and a transmission. The transmission device comprises a basal body, a rotating body, a first transmission mechanism, a second transmission mechanism anda middle transmission mechanism; the rotating body can be rotated relative to the basal body; the first transmission mechanism is selectively connected or disconnected with the basal body; part of thesecond transmission mechanism is selectively connected or disconnected with the basal body; the middle transmission mechanism is arranged between the first transmission mechanism and the second transmission mechanism; when the first transmission mechanism is connected with the basal body, and part of the second transmission mechanism is disconnected with the basal body, power obtained by the rotating body is output through the second transmission mechanism under the limiting effect of the first transmission mechanism and the middle transmission mechanism; and when the first transmission mechanism is disconnected with the basal body, and part of the second transmission mechanism is connected with the basal body, the power obtained by the rotating body is transferred to the first transmission mechanism and the middle transmission mechanism through the second transmission mechanism, and is output through the first transmission mechanism and the middle transmission mechanism.

The invention discloses a fuel cell hybrid power system for a small inland river boat. By parallel output of a fuel cell and a supercapacitor, when one power source is in performance decline, the other one can provide energy required by the small inland river boat. The output voltage of a fuel cell stack passing through a single-way DC/DC converter is higher than the full voltage of the supercapacitor. When the small inland river boat requires low output power, the fuel cell provides energy and charges the supercapacitor until the supercapacitor is fully charged, and then charging is stopped.When the output power required by the small inland river boat exceeds capacity of the fuel cell, the fuel cell and the supercapacitor operate simultaneously to provide power for the small inland riverboat. Once fuel cell faults or fuel exhausting occur in a navigation process of the small inland river boat, a diesel generating set starts to provide electric energy for the small inland river boatto return. Therefore, navigation time of the small inland river boat can be prolonged to the greatest extent, an air power system is simplified, a proportion of a power system is decreased, and systemenergy consumption is reduced.

The invention relates to a mechanism for adjusting position of a fabricated wall frame. The mechanism comprises a cross beam module, a frame positioning and lifting module, and a base, wherein the frame positioning and lifting module is arranged on the base, each frame is placed on each cross beam in the cross beam module, and then each cross beam is adjusted through the frame positioning and lifting module, so that the distribution positions of the frames are adjusted, and the requirements of working conditions are met. By the adoption of the mechanism, the frame distribution position in thefabricated wall can be adjusted according to the specification and process change of the fabricated wall, the production efficiency is improved, the labor intensity of workers is reduced, the safety coefficient is high, and the applicability is good.

The invention relates to the technical field of spinning, in particular to a spinning machine bath. The spinning machine bath comprises a bath body, a perforated plate is arranged at the bottom of the bath body, a spinning jet is arranged inside the bath body, a sawtooth plate is arranged on the inner wall of the bath body, stripped holes are arranged in the sawtooth plate, an obliquely-arranged filter-hole plate is arranged on the outer wall of the bath body, a purification filter unit is arranged in the middle of the bath body and comprises an upper filter screen and a lower filter screen, the upper filter screen is upwardly conical, the lower filter screen is downwardly arced, a filter partition is arranged between the upper filter screen and the lower filter screen, and a notch is formed in the side face, corresponding to the end face of the filter partition, of the bath body. Corresponding bath depth is acquired by reasonably adjusting sawtooth plate according to production yield and spinning speed, impurities in acid bath are reduced, and production and process requirements are met.

The invention provides an operation platform and a control method thereof and a telescopic boom forklift. The operation platform comprises a bearing mechanism and a linkage mechanism; the bearing mechanism is configured to carry people and goods; and the linkage mechanism is connected to the bearing mechanism, and the linkage mechanism is configured to adjust the position of the bearing mechanism; wherein the linkage mechanism determines a load diagram according to the working state of the bearing mechanism, and the load diagram represents the action range of the linkage mechanism.

The invention discloses a lifter device capable of controlling a transportation direction and a feeding distance. The lifter device comprises a base, wherein a belt storage cavity with an upward opening is arranged in the base; the upper side of the belt storage cavity communicates with a slide plate cavity with an upward opening; a lifting motor which is positioned at the left side of the belt storage cavity is fixedly connected in the base; the upper end surface of the lifting motor is fixedly connected to a rotary shaft which upwards extends; the upper end surface of the base is fixedly connected to a sleeve which is positioned at the left side of the slide plate cavity; the upper end surface of the base is fixedly connected to a folding column which extends upwards; a motor is rotatedto match with a gear rack, so that a workbench of the lifter is foldable, and therefore, occupied space is reduced; and through the rotatable base and a liftable supporting column, the lifter can realize lifting and rotating on different positions according to difference of working conditions, so that needs of each working condition are met; and meanwhile, a conveyor belt operates to drive goods to continuously transport upwards, so that transportation of goods is very easy and convenient, and work efficiency is greatly improved.

A rolling mill bearing part carburizing heat treatment technology is characterized in that the rolling mill bearing part is sequentially divided into a surface layer, a secondary surface layer and a core layer from outside to inside according to the carburizing depth, and the carburizing technology is divided into a heating period, a strengthening period, a reliable period, a life prolonging period and a protection period according to the depth and carbon content requirements of the surface layer, the secondary surface layer and the core layer; wherein the carbon potential in the heating period is set to be 0.6%, the carbon potential in the strengthening period, the carbon potential in the reliable period, the carbon potential in the life prolonging period and the carbon potential in the protection period are all set to be maintained to be 1.0% or above and are sequentially increased stage by stage, and the highest carbon potential is not higher than 1.25%; in the carburizing process, by adjusting the carbon potential of each period, it is ensured that the rolling mill bearing part has enough carburizing depth and corresponding carbon content while it is ensured that no thick and large carbide structure is formed on the surface layer; according to actual use inspection, the rolling mill bearing produced after the carburizing heat treatment process is implemented completely meets the use condition requirements of the high-end plate strip rolling mill bearing, the service life and the reliability of the rolling mill bearing exceed international famous brands, and the quality of domestic rolling mill bearings reaches the international advanced level.