Patents
Literature

126results about How to "Guaranteed to work" patented technology

Semi-dragging and suspension drill floor used for petroleum drilling-workover equipment

The invention relates to a semi-trailing derrick floor used in petroleum drilling and repairing equipment, which comprises a derrick floor body, a derrick floor base, a rotatable lifting parallelogram derrick floor consisted of a plurality of posts with two ends hinged between the derrick floor body and the derrick floor base and a hitch frame fixed on the front end of the derrick floor base; the derrick floor body is a frame structure divided into a rotating disk area and a vertical root area; the invention also comprises a rear vehicle frame, the rear vehicle frame consists of two crossbeams and a strut between the two crossbeams; the two crossbeams are respectively connected to the rear end of the derrick floor base in a detachable manner by a connection mechanism; the rigid one-line tow shaft suspension is adopted between the rear vehicle frame and the wheel; a pair of synchronous hydraulic supporting legs capable of extending downwards are mounted at the front end of the derrick floor base; supporting legs for supporting the fallen derrick floor body are disposed on the derrick floor base; and steam heating devices are disposed in the rotating disk area and the vertical root area. The invention can be demounted easily, can not be limited by the superhigh transportation and can satisfy rapid transferring demand and can adapt the operation in low temperature.
Owner:RG PETRO MACHINERY GROUP

Method of processing communication device if anomaly of GPRS (General Packet Radio Service) network occurs

ActiveCN104320792AGuaranteed to work
The invention relates to a method of processing a communication device if the anomaly of a GPRS (General Packet Radio Service) network occurs, and the method is used for processing the communication device if the anomaly of the GPRS network occurs. The method comprises the following steps of firstly, switching the GPRS network to an airplane mode and keeping the mode for a period of time when the GPRS network of the communication device has an anomaly, and then switching the GPRS network to a normal mode again to carry out automatic connection of the GPRS network; secondly, according to the frequency for once more automatic connection of the GPRS network and the network connection status, recording the current time, setting a restart mark, restarting the communication device and reading the restart mark again; and lastly, completing the connection of the GPRS network of the communication device and the normal opening operation of the communication function in sequence according to a reading result of the restart mark. According to the method, when the GPRS network has the anomaly, the communication device is capable of timely and quickly repairing the GPRS function and automatically carrying out the connection of the GRPS network, so that long-time interrupts of the network communication cannot be caused by the abnormal condition, and thus the normal work of the communication device is guaranteed.
Owner:宁波波导易联电子有限公司

Control method for avoiding low efficiency area of adjustable speed motor of hybrid electric vehicle

ActiveCN110588627AGuaranteed to work
The invention relates to the technical field of vehicle control, in particular to a control method for avoiding a low efficiency area of an adjustable speed motor of a hybrid electric vehicle. The control method comprises the following steps of S1, calculating the speed lower limit n<ec_dwn> of an engine when the adjustable speed motor is in the charging state; S2, calculating the speed upper limit n<ed_up> of the engine when the adjustable speed motor is in the driving state; S3, calculating the target required speed n<dem> of the engine; going on S4 if the target required speed n<dem> of theengine is higher than the speed lower limit n<ec_dwn> of the engine, or the target required speed n<dem> of the engine is lower than the speed upper speed n<ec_up> of the engine; or else going on S5;S4, controlling the speed of the engine to the target required speed n<dem> of the engine; S5, correcting the target required speed n<dem> of the engine, and enabling the adjustable speed motor to avoid the low efficiency area; and controlling the speed of the engine to the corrected target required speed n<deml> of the engine. According to the control method, the adjustable speed motor is enabled to avoid the low efficiency area, so that the electric power is prevented from being converted into thermal power completely; and it is ensured that the adjustable speed motor works properly.
Owner:一汽解放青岛汽车有限公司 +1

Plastic fuel tank cover of engineering vehicle

InactiveCN104626974AGuaranteed to workGuaranteed pressure environment
The invention relates to a plastic fuel tank cover of an engineering vehicle. The plastic fuel tank cover comprises a fuel tank oil filling port, a pressure-bearing plate, a pressure spring, an air inlet valve assembly, a plastic locking rod, a plastic housing and a handle pull rod. The plastic locking rod and the plastic housing are in interference fit with each other and sealed through an O-shaped rubber ring. The air inlet valve assembly comprises an air inlet valve, a cover-shaped gasket, a negative pressure spring and a rubber gasket. A valve rod of the air inlet valve penetrates through an air inlet valve installation hole of the pressure bearing plate. The cover-shaped gasket is arranged on the valve rod of the air inlet valve. The negative pressure spring is installed between the cover-shaped gasket and the pressure bearing plate. The rubber gasket is fixed to a bottom face circular plate of the air inlet valve. When the air pressure inside the oil tank and the external air pressure are balanced, the rubber gasket and the pressure bearing plate are attached and sealed, and the oil filling port of the fuel tank and the pressure bearing plate are attached and sealed. The plastic fuel tank cover solves the key common problems that due to the fact that in the work process of an existing engineering vehicle, rainwater enters the fuel tank, the fuel tank rusts and is corroded, vent holes of the air inlet valve are prone to blockage, an engine is blocked, and automatic flameout is caused or starting can not be achieved.
Owner:LIUZHOU RISUN FILTERS

Computer network connection accessory arranging box

The invention discloses a computer network connection accessory arranging box, which comprises a base, and is characterized in that a support column is connected at the upper end of the base, a box body is connected at the upper end of the support column, an opening of the box body is horizontally arranged, a box cover is rotatably connected on the side wall of the opening of the box body, the side wall of the box body is provided with a plurality of wire inlets, the inner walls at the right end and the left end of the box body are provided with a certain number of first sliding slots, the side wall of each first sliding slot is provided with a left-and-right communicating fixing hole, each fixing hole is located below the corresponding wire inlet, the box body is internally provided with support plates, two ends of each support plate are respectively located in two first sliding slots in the same plane, each support plate is internally provided with a second sliding slot, each second sliding slot is internally provided with a sliding block, the side wall at the end, which is close to the box cover, of each second sliding slot is provided with a back-and-forth communication threaded hole, each threaded hole is internally provided with a threaded rod in a threaded connection manner, and the end, which is located in the corresponding second sliding slot, of each threaded rod is rotatably connected with the side wall of the corresponding sliding block. The computer network connection accessory arranging box can collect computer accessories effectively, and is convenient to take out the computer accessories and simple to operate.
Owner:滁州云拓互联科技有限公司

Automatic open mill roller surface cleaning device and cleaning method

ActiveCN104924475AGuaranteed to work
The invention relates to the technical field of sizing material open milling, in particular to an automatic open mill roller surface cleaning device and a cleaning method. The cleaning device comprises an installing support arranged on a roller sliding seat, a scraper cleaning mechanism and a cleaning roller cleaning mechanism, wherein the scraper cleaning mechanism and the cleaning roller cleaning mechanism are both arranged on the installing support; the scraper cleaning mechanism comprises a scrapper and a scraper opening-closing hydraulic cylinder, one end of the scraper opening-closing hydraulic cylinder is connected with the installing support, the other end of the scraper opening-closing hydraulic cylinder is connected with the scrapper, the scrapper is connected with the installing support through a fixed articulated shaft, and a gap exists between the cutting edge of the other end of the scrapper and the outer surface of a roller; the cleaning roller cleaning mechanism comprises a cleaning roller swing hydraulic cylinder, a cleaning roller swing arm component, a cleaning roller rotating driving motor and the cleaning roller with a soft cutting edge, wherein one end of the cleaning roller swing hydraulic cylinder is connected with the installing support, and the other end of the cleaning roller swing hydraulic cylinder is connected with the cleaning roller swing arm component. By means of the automatic open mill roller surface cleaning device and the cleaning method, the surface of an open mill can be effectively cleaned, and the phenomenon that viscid chippings in sizing materials are attached onto the surface of the roller and accumulated, and the roller is coated with the sizing material is avoided.
Owner:特拓(青岛)轮胎技术有限公司

Temperature adjustment system of RTO oxidizing furnace, and adjustment technology thereof

PendingCN107366922AGuaranteed to work
The invention discloses a temperature adjustment system of RTO oxidizing furnace. According to the system, organic waste gas enters an RTO heat accumulation chamber through a switching valve, and enters an oxidizing chamber for combustion after being heated by a heat accumulator, the combusted high-temperature purified gas then enters the heat accumulation chamber for heating the heat accumulator, and is discharged to a chimney through a draught fan after being cooled; when the ultratemperature of an RTO oxidizing chamber exceeds the normal running temperature 85DEG C above of RTO, a circulating cooling loop is started for circularly supplementing gas so as to guarantee the normal running of the system. A part of purified gas is introduced to enter the oxidizing chamber or mix with waste gas, and after the draught fan, the flowrate of the purified gas is controlled through an adjusting valve. A part of purified gas is introduced to enter the oxidizing chamber, the temperature of the oxidizing chamber is adjusted by utilizing the low temperature of the purified gas. A part of purified gas is introduced to mix with waste gas, so that the content of VOC can be reduced, the temperature of the oxidizing chamber can be adjusted, and the normal running of the temperature of the whole RTO oxidizing furnace can be guaranteed.
Owner:XUZHOU KERONG ENVIRONMENTAL RESOURCES CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products