57results about How to "Extend trouble-free working time" patented technology

The invention relates to a combine harvester self-adaptive cleaning control device and a self-adaptive cleaning method thereof. The control device comprises a return stroke board, a cleaning screen, a cleaning centrifugal fan, an impurity collection auger, a grain collection auger, a cleaning grain loss monitoring sensor, an automatic grain tank grain impurity rate monitoring device and an online monitoring and control system. The online monitoring and control system is connected with the cleaning grain loss monitoring sensor, a lower vibration screen drive hydraulic motor, the automatic grain tank grain impurity rate monitoring device, a power drive mechanism of a louver sieve with the adjustable opening degree, a power drive mechanism of the cleaning centrifugal fan, an air inlet opening degree adjusting mechanism of the cleaning centrifugal fan and an air division board angle adjusting mechanism of the cleaning centrifugal fan. By the adoption of the cleaning control device, according to the operation quality in the operation process, various work parameters are automatically adjusted, production efficiency is improved, the fault rate is controlled within a certain range, and meanwhile and fault-free work time of a whole machine is greatly prolonged.

The invention relates to a combine harvester cleaning impurity rate self-adaptive control device and a self-adaptive control cleaning method. The control device comprises a return stroke board, a cleaning screen, an impurity collection auger, a grain collection auger, a cleaning grain loss monitoring sensor, a cleaning centrifugal fan, an automatic grain tank grain impurity rate monitoring device and an online monitoring and control system. A multi-duct cleaning device operation state online monitoring and control system collects the grain tank grain impurity rate, the inclination angles of an air division board I and an air division board II of a lower air outlet of the cleaning centrifugal fan, the opening degree of a louver sieve, the rotation speed of the fan and the vibration frequency of a vibration screen in real time, corresponding control signals are output in real time to act on drive devices of an inclination angle adjusting mechanism of the air division board I and the air division board II of the lower air outlet of the cleaning centrifugal fan of a multi-duct cleaning device, an opening degree adjusting mechanism of the louver sieve of the vibration screen, a vibration frequency adjusting mechanism of the vibration screen and a rotation speed adjusting mechanism of the fan, various work parameters are automatically adjusted according to operation quality, production efficiency can be remarkably improved, and fault-free work time of a whole machine can be remarkably prolonged.

The invention discloses a reliable transmission method based on an SDN, relating to the technical field of network communication. The method is mainly applied to a computer network, an information center network and the like. In order to improve a fault-free operation time of the SDN and improve the reliability of network transmission, the adaptive calculation and the simultaneous transmission of data through multiple paths are carried out according to a network resource use condition based on the SDN, at the same time, redundant repeated data packets are processed in a receiving end software switch. Through the above mode, the reliability of network data transmission can be effectively improved, the possibility of network interruption or delay caused by a link failure is reduced, the fault-free operation time of the network is improved, and better quality of network service is provided for users.

A direct connection low-speed small-scale mixed-flow turbine applied in a hydrodynamic energy-saving cooling tower, comprising a volute (1) for flooding water, a seating ring (2) provided with single row of guide vanes in a circular way, a runner (12), a straight-taper type water outlet pipe (9) and a side water outlet tank (10); wherein the seating ring (2) is arranged at the inner side of the volute (1), a water outlet port formed by guide vanes of the seating ring (2) is communicated with a water inlet port formed by curved vanes (4), a water outlet port formed by the curved vanes (4) is communicated with a water inlet port of the straight-taper type water outlet pipe (9), and an water outlet port of the straight-taper type water outlet pipe (9) is communicated with a water inlet port of the side water outlet tank (10). The turbine is characterized in that a shaft block (6) is arranged on the runner (12) and is internally provided with a shaft (7) which is directly mounted with a cooling fan blade; the value of the unit speed n11=nD1 / square root of H is 28-42, wherein n is the rated speed of the cooling fan blade, D1 is the diameter of a water inlet port of the runner (12), H is the hydraulic pressure for entering a tower. The invention has the advantages of small size, high efficiency and low noise.

The invention relates to an operating environment safety monitoring and early warning system of meteorological equipment, comprising one or a plurality of multi-element acquisition modules, a concentrator, and a monitoring and early warning terminal system, wherein the multi-element acquisition module is composed of an equipment networking server and a collector; the equipment networking server is connected with one or more of a hydrogen gas detector, a differential mercury vapor meter, a gauss meter or a dust measurement instrument; and the collector is connected with one or more of a temperature sensor, a humidity sensor, a voltage sensor or a smoke sensor. The use of the system in the invention can change the manual monitoring mode in the prior art, the monitoring mode is changed from passive to active, from dispersed to successive, and from post hoc analysis to real-time monitoring. A convenient and reliable means for the equipment guarantee and safety management of meteorological guarantee service departments at all levels can be provided, the management efficiency is improved, and the informatization level of equipment guarantee and management is improved. The system can be used as an auxiliary means and a platform of daily equipment guarantee and shift.

The invention relates to a combine harvester cleaning loss rate self-adaptive control device and a self-adaptive control method. The control device comprises a return stroke board, a cleaning screen, an impurity collection auger, a grain collection auger, a cleaning grain loss monitoring sensor, a cleaning centrifugal fan and an online monitoring and control system. A multi-duct cleaning device operation state online monitoring and control system collects operation parameters of the grain cleaning loss rate, the inclination angles of an air division board I and an air division board II of a lower air outlet of the cleaning centrifugal fan, the rotation speed of the fan and the opening degree of an air inlet of the fan in real time, corresponding control signals are output in real time to act on drive devices of an inclination angle adjusting mechanism of the air division board I and the air division board II of the lower air outlet of the cleaning centrifugal fan of a multi-duct cleaning device, a rotation speed adjusting mechanism of the fan and an opening degree adjusting mechanism of the air inlet of the centrifugal fan, work parameters of the multi-duct cleaning device are adjusted in real time, so that the grain cleaning loss rate of the multi-duct cleaning device is distributed within a reasonable range, and fault-free work time of a whole machine is prolonged.

The invention relates to an optical system for a high-power LED traffic signal light, comprising a high-power LED light source, an aspheric concave lens and a Fresnel lens. Lights emitted by the high-power LED light source form disc light spots through the aspheric concave lens to be refracted to the Fresnel lens, and the disc light spots are refracted to be parallel lights through the Fresnel lens to be emitted. According to the technical scheme, the high-power LED light source is combined with a lens optical system, and uniform light processing is carried out for the lights emitted by the high-power LED light source to form a surface light source, thereby the traffic signal light has the characteristics of low energy consumption, large visual angle, constant brightness, convenient manufacture, average faultless working time increase, and the like.

The invention relates to a method for removing siloxane from garbage landfill gas, sewage and mud marsh gas. The method compresses the marsh gas from garbage landfill fields and sewage and mud pools and remove water and granule impurities, and the marsh gas is compressed into a pre-cooling heat exchanger, cold source of which is provided by a cooling compressor to cool the gas to 0 DEG C and then the majority of the water and liquid impurities are removed. Then, the gas is compressed into a freezing device formed by two groups of heat exchanger to be frozen to minus 25 DEG C to minus 30 DEG C, and then siloxane and heavy hydrocarbons, etc. impurities with a high dew point are absorbed to the surface of the heat exchanger, and at the same time the system makes use of the heat in an evaporator of the cooling device to melt the siloxane and heavy hydrocarbons, etc. impurities with a high dew point which are absorbed to the surface of the heat exchanger; the high dew point siloxane and heavy hydrocarbons, etc. impurities are drained to the outside of the heat exchanger along with liquid impurities in the effect of pressure and two groups of heat exchangers work alternatively, so the invention realizes the aim of removing siloxane from garbage landfill gas, sewage and mud marsh gas and has the advantages of simple processes, health and environment-protection.

The invention relates to an elevator bucket conveyor test device and method. A distribution device is arranged under a discharge opening of an elevator bucket conveyor, a first discharge outlet and a second discharge outlet which are switchable are arranged in the bottom of the distribution device, and a first weighing hopper and a second weighing hopper are arranged under the discharge outlets respectively. Two circulatory chutes are arranged below the weighing hoppers respectively, a storage hopper is arranged under each circulatory chute, and each storage hopper is located over a feed opening of the elevator bucket conveyor. The elevator bucket conveyor test method includes switching the distribution device to the first discharge outlet or the second discharge outlet circularly, and acquiring accurate material weight by means of static weighing so as to obtain average flow rate within a period of time. By the aid of the circulatory static weighing method, high-precision instantaneous flow rate of material conveying and accumulated flow rate can be obtained. Therefore, the elevator bucket conveyor can be subjected to optimization design according to test data, conveying performance is improved, and time between failures is prolonged. The test device and the test method can be used for carrying out calibration test of the conveying performance before delivery.

The invention discloses a parallel type self-balancing multi-stage centrifugal pump. Due to the fact that impellers are symmetrically arranged in a pump body in a back-to-back mode, self balancing of the impellers in the axial direction is achieved, mechanical friction generated by axial force in the rotation process of the multi-stage centrifugal pump is reduced, and service life of the centrifugal pump is prolonged. Due to the fact that a balancing structure is removed from the centrifugal pump, wearing parts are few, leakage losses are small, safety and reliability are high, and maintaining is easy.

The invention discloses an axial force self balancing multistage centrifugal pump. The self balancing of impellers in the axial direction is realized by arranging the impellers in a pump body in a symmetrical mode, namely, the axial force generated by the impellers at different levels cancels out each other, thus reducing the mechanical friction generated in the running process of the multistage centrifugal pump owing to the axial force, prolonging the no failure operation time of the centrifugal pump and reducing the equipment maintenance cost of users.

The invention discloses a shuttle core clamping mechanism used in an automatic base line replacing device of an embroidery machine. The shuttle core clamping mechanism consists of a shifting claw rack, a shifting angle limiting rack, a buffer spring, a shifting claw, a shifting claw shaft, a shifting claw push arm, a motor shaft, a thrust motor and a thrust motor rack, wherein the shifting angle limiting rack with a hinge hook at the right end is connected with the shifting claw rack in a sliding manner; the buffer spring is arranged between the shifting claw rack and a mounting base; one end of the shifting claw shaft is fixedly connected with the shifting claw; the other end of the shifting claw shaft penetrates through the shifting claw rack and is fixedly connected with one end of the shifting claw push arm; the outer end of the motor shaft is connected with a guide groove of the shifting claw push arm in a sliding manner; the shifting claw, the hinge hook and a hinge are in contact connection; the shifting angle limiting rack is fixedly connected with a shuttle core access guide plate. By adopting the shuttle core clamping mechanism, a shuttle core can be firmly clamped and is kept be in correct posture when being stored and moved, so that abrasion on components and destructive accidents are effectively reduced.

The invention discloses a riveter comprising a piston and an abdication group with an inner liner ring and an outer liner ring, wherein the inner liner ring with a sleeve structure has the external diameter being divided into a small-diameter part and a bigger-diameter part, between which step transition is provided, and external surface of the small-diameter part is provided with outside screw; the outer liner ring is in sleeve structure cooperating with the inner liner ring, and internal diameter face of the outer liner ring has internal screw coordinating with the outside screw of the outer liner ring. The small-diameter parts on external surface of an outer abdication ring and an inner abdication ring are fixed by the screws, and are screwed down, then a rear end of the outer liner ring bears against the step of the inner liner ring and the frond end of the outer liner ring aligns to a frond end of the inner liner ring, wherein the external diameter face at an adjacent position of the small-diameter part and bigger-diameter part of the inner abdication ring is of smooth plane. Preferred, the piston adopts an integrated structure of the piston column and the piston plate, according to the above improvement of the structure, service time in fault-free of the riveter is prolonged.

The invention relates to a cleaning blower for a combined grain harvester. The cleaning blower for the combined grain harvester comprises a hydraulic motor, an air inlet, an upper air outlet, a volute and a lower air outlet; the lower air outlet is provided with a lower air outlet division plate I and a lower air outlet division plate II; the air inlet is equipped with an air inflow adjusting mechanism; a first angle adjusting mechanism is installed on the lower air outlet division plate I, and a second angle adjusting mechanism is installed on the lower air outlet division plate II; the hydraulic motor, the air inflow adjusting mechanism, the first angle adjusting mechanism and the second angle adjusting mechanism are connected with a control processor. After using the cleaning blower provided by the invention, the production efficiency and the working time of the complete machine without fault of the combined grain harvester are improved obviously.

The invention discloses a high frequency transformer whose primary and secondary windings are each coiled of a hollow tubular conductor on a high frequency magnetic core. The center of each hollow tubular conductor is filled with cooling water or other medium, which perfectly solves the skin effect of high frequency current and the cooling requirement. As compared with the secondary cooling switching power transformer, the cooling effect is obviously improved to largely reduce the temperature increment of the switching power transformer.

A self-diagnosis self-recover method of computer CPU anti-jamming is provided. The invention relates to a computer CPU self-diagnosis noise-tolerant scheme which belongs to electronic technology electro-magnetism compatibility technology field. The invention receives a stable pulse provided by inner clock by using a timer / counter unit in microcomputer slice, and puts forward a IRQ when the timer overflows (addition type) or is zero (subtraction type); corresponding interrupt service program compels a program indicating pin return to the designated location and recover important port and data in order to forcedly realize 'soft reset'. When functional application programs operate normally, the soft makes the timer zero clearing or number setting every definite time (within the overflow periodic of the timer) so that the mis-reset caused by the overflow interrupt can be prevented. The invention does not need slice-out hard ware, is low failure rate, finds PC indicating pin's abnormity in time, and forces 'soft reset' and recover important data in real time so that the normal operation of the computer system is ensured.

The invention provides a high-pressure gear pump with a rectangular oil inlet and relates to hydraulic machinery. The oil inlet is a rectangular slot hole; the length of the slot hole is equal to or slightly smaller than that of a tooth; and under the condition of guaranteeing that the flow speed of the oil inlet is not changed, the width of the oil inlet is reduced to the maximum extent, an inhalation angle phi' is reduced, the axial stress of a gear is reduced, the service life of a bearing is prolonged, the no-failure operation time of the high-pressure gear pump is increased, maintenance cost is reduced, and economic benefit is increased. The high-pressure gear pump is easy and convenient to manufacture and is favorable for popularization and using.

The invention discloses a converter water seal check valve liquid level detection device, which comprises an equilibrium water level overflow chamber connected to a converter water seal check valve through a water seal valve water connection pipe, a water seal water level overflow chamber connected to the bottom of the equilibrium water level overflow chamber, a measurement water barrel connected to the equilibrium water level overflow chamber through a water level gauge water connection pipe and a water level gauge gas connection pipe respectively, a buoy disposed in the measurement water barrel, a signal detection and conversion unit connected to the buoy. The liquid level detection device also includes an equilibrium gas connection pipe disposed over the water seal valve water connection pipe, also one end of the equilibrium gas connection pipe is connected to the converter water seal check valve, and the other end is connected to the equilibrium water level overflow chamber. The liquid level detection device can increase the fault-free work time and reduce the cost of equipment repair, ensures the accuracy of water seal check valve water level detection data, improves the safety control factor of a gas recovery system, and also has the advantages of easy implementation and low cost, etc.

The invention relates to a vehicle-mounted concrete conveying pump, which comprises a swing oil cylinder, a hydraulic oil tank, a conveying cylinder, a washing room, a main oil cylinder, an oil pump, and an engine to form a vehicle-mounted pump hydraulic system, and the vehicle-mounted pump hydraulic system and electrical control system are mechanically and reliably connected to the chassis. , the whole machine moves freely with the speed of the chassis such as a car, and its characteristics are as follows: 1) An independent engine is used to directly drive the oil pump of the hydraulic system; an adjustable throttle valve is set in the oil circuit, and a swing system with constant pressure is used; 2) The electrical control system can be set freely Programmable controller; 3) In addition to connecting the high and low pressure switching valves between the rod chamber and the rodless chamber of the two master cylinders, a logic valve, an electromagnetic pilot valve and a shuttle valve are also connected between the rodless chambers of the two master cylinders. The present invention adopts the integrated design of machine, electricity and hydraulic, adopts programmable controller in the electric, cancels complicated hydraulic control, thereby reduces the weight of the whole machine, reduces the failure rate of the whole machine, and prolongs the trouble-free working time , and increase the pumping capacity index to 500-600MPa m 3 , so that the whole machine meets the changes in the current construction market, and the application prospect is very broad.

The invention relates to a self-lubricating vacuum pressure compound air pump, which belongs to the technical field of air compressing or delivering machinery for vacuumizing air and outputting compressed air synchronously. The self-lubricating vacuum pressure compound air pump consists of a motor and a pump head, wherein the inside of the pump head is provided with a pump body; a cooling fan is arranged on the pump body near the motor; and a cooling part is arranged at the periphery of the cooling fan of the pump head; a fairing is arranged between the pump body and an outer cover; a bracket is fixed at the bottom of the air pump; the front end of the pump body is provided with a front end cover; the back end of the pump body is provided with a back end cover; a front bearing block is arranged on the front end cover; a back bearing block is arranged on the back end cover; a front bearing is arranged on the front bearing block; a back bearing is arranged on the back bearing block; and a rotating shaft penetrates the front bearing and the back bearing. The self-lubricating vacuum pressure compound air pump solves the problems of slow cooling of the compressed air, unadjustable working plane and easy generation of air turbulence in the prior air pumps.

The invention discloses a multifunctional gastric lavage bed. The multifunctional gastric lavage bed comprises a bed body, vomiting grooves, head fixators, shoulder fixators and limb and body fixators, wherein the bed body comprises a bed plate; the bed plate is sequentially provided with the head fixators and the shoulder fixators from top to bottom; two side edges of the bed plate are respectively provided with the limb and body fixators; the vomiting grooves are formed in the outer sides of the shoulder fixators. According to the multi-functional gastric lavage bed disclosed by the invention, the structure is reasonable, the operation is convenient, the working efficiency is increased, and the labor is saved.

The invention relates to a high-speed reciprocation wire cut electrical discharge machining working solution service life online fast determining method. The method is characterized by including: firstly, using a sampling circuit to regularly sample no-load current pulse count or (short circuit+discharge) current pulse count in one sampling cycle; secondly, calculating the proportion of the no-load current pulse count or (short circuit+discharge) current pulse count accounting for the pulse in the sampling cycle; thirdly, processing according to the obtained proportion: if no-load current pulse proportion is not larger than 10% or the (short circuit+discharge) current pulse proportion is not smaller than 70%, determining that working solution operates normally; if the no-load current pulse proportion ranges from 10% to 20% or the (short circuit+discharge) current pulse proportion ranges from 60% to 70%, determining that cutting can be performed normally by adjusting cutting parameters; if the no-load current pulse proportion is larger than 20% or the (short circuit+discharge) current pulse proportion is smaller than 60%, determining that the working solution fails and needs to be replaced. The method is simple, practical, good in instantaneity and high in accuracy.

The invention discloses a pressure wave generator, a data transmission system, a control method and an encoding method, and belongs to the technical field of industrial field communication. The pressure wave generator comprises a shell assembly, a rotor assembly and a stator assembly, the rotor assembly and the stator assembly are installed in the shell assembly, the shell assembly comprises a suspension guide cylinder and a compression-resistant sealing cylinder, and the stator assembly comprises a motor bin, a stator motor, a coupler, a lead screw and a stator. The motor bin is installed inthe suspension guide cylinder, the stator motor is connected with the upper end of the lead screw through the coupler, and the stator is connected with the lead screw and is driven by the stator motorto move up and down. The data transmission system comprises a pipeline, a downstream container installed on the downstream portion of the pipeline, an upstream container installed on the upstream portion of the pipeline, a monitoring instrument installed on the pipeline, a pressure wave modulator and a signal detecting and decoding device. The plugging removal device has the plugging removal capability, the fault-free working time is effectively prolonged, and the production efficiency under severe working conditions is improved.

The invention discloses a portable low-temperature semiconductor detector device which comprises a detector crystal, a high-gas-pressure crystal protection chamber, a vacuum chamber and a refrigerating plant, wherein the high-gas-pressure crystal protection chamber is filled with high-pressure hyperpure inert gases, and the detector crystal is contained in the high-gas-pressure crystal protection chamber; a vacuum environment is formed in the vacuum chamber, and the high-gas-pressure crystal protection chamber is contained in the vacuum chamber; and the refrigerating plant comprises a refrigerating machine and a refrigerating machine cold finger which is connected with the refrigerating machine and is used for cooling the detector crystal.

The invention discloses an engineering machinery diesel tank with a filtering function. The engineering machinery diesel tank comprises an oil tank body, an oil pump, a filter, a first oil pipe, a second oil pipe, a third oil pipe and a fourth oil pipe. One end of the first oil pipe is connected with the oil tank body. The other end of the first oil pipe is connected with an oil sucking opening of the oil pump. One end of the second oil pipe is connected with an oil outlet of the oil pump. The other end of the second oil pipe is connected with an oil inlet of the filter. One end of the third oil pipe is connected with an oil outlet of the filter. The other end of the third oil pipe is connected with the fourth oil pipe. One end of the fourth oil pipe is connected with the oil tank body. The other end of the fourth oil pipe is connected with an oil sucking opening of an engineering machinery diesel engine. The rated flow of the oil pump is larger than the oil consumption of the engineering machinery diesel engine. The rated flow of the filter is 110 L / min. The filtering level of the filter is 10 mu. The engineering machinery diesel tank is simple in structure and convenient to use, the working reliability of the engineering machinery diesel engine is improved, practicability is high, and promotion and using are convenient.

The invention provides a power electric cable resistant to an alternating working condition. The power electric cable comprises multiple control cores and power cores, and an insulating layer and a shielding layer are sequentially arranged outside the control cores; an insulating layer and a shielding layer are sequentially arranged outside the power cores; a rubber filling layer is filled betweenevery two of all the control cores, between the power cores and between the control cores and the power cores respectively; and a fireproof belt, a fiber braided layer and an outer sheath are sequentially arranged outside a cable assembly composed of the control cores and the power cores. By adopting the scheme, cables have enough flexibility, namely cables have enough toughness while having enough softness, thereby guaranteeing that the electric cable can not be bent for a relatively small angle; meanwhile, the power electric cable provided by the invention integrates the power cores and thecontrol cores into a whole, so that quantity of the cables is reduced.

The invention discloses an engineering machinery hydraulic oil tank with a filtering function. The oil tank comprises an oil tank body, an oil pump, a filter, a first oil pipe, a second oil pipe and a third oil pipe, wherein one end of the first oil pipe is connected with the oil tank body, the other end of the first oil pipe is connected with an oil suction port of the oil pump, one end of the second oil pipe is connected with an oil outlet of the oil pump, the other end of the second oil pipe is connected with an oil inlet of the filter, one end of the third oil pipe is connected with an oil outlet of the filter, the other end of the third oil pipe is connected with the oil tank body, the rated flow of the oil pump is 2-3 L / min, the rated flow of the filter is 60 L / min, and the filter class of the filter is 3 microns. The oil tank is compact in structure, novel and reasonable in design, capable of well filtering hydraulic oil in the oil tank body, prolonging the no-failure operation time of engineering machinery and improving the reliability of the engineering machinery greatly, and convenient to use and popularize.

The invention discloses a smart home wireless sensor network scheduling and early-warning system based on electric quantity positioning, which comprises a central data processing unit, a ZigBee gateway coordinator control node, a data acquisition terminal node, a server, a network transmission unit, a third-party center and a mobile phone terminal. The invention further discloses a smart home wireless sensor network scheduling and early-warning method based on electric quantity positioning, which mainly comprises the steps of positioning, early-warning scheduling and the like. The smart home wireless sensor network scheduling and early-warning system based on electric quantity positioning controls the data acquisition terminal node from global intelligence level, avoids repeated work of the nodes, reduces total working time of all nodes, reduces data redundancy, reduces energy consumption and storage space of a smart home network integrally, reduces replacement maintenance time required since the electric quantity of a battery runs out and the storage space is not enough, saves labor cost and improves the fault-free working time of the system.