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

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.

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 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.

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 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 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 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 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.