70results about How to "Run at a constant speed" patented technology

The invention discloses a train energy-saving operation target speed curve optimization method comprising the following steps that S1, an optimization target is divided into multiple modes based on a hierarchical optimization method, and a mode switching relationship between any two adjacent modes is calculated based on a mode switching satisfaction area; S2, the speed value of a first constant speed mode and the speed value of the switching point of switching to a braking mode from a first coasting mode are calculated according to the mode switching relationship; S3, the position coordinates of the switching point of switching to the first coasting mode from the first constant speed mode are reversely calculated based on a two-way iterative method; S4, an initial target speed curve is obtained; S5, as for any one steep slope section, the part corresponding to the steep slope section in the initial target speed curve is optimized based on an average speed equivalent method; and S6, the target speed curve is optimized based on a multi-target satisfaction optimization method. Energy saving performance, punctuality, stability and safety of train operation can be effectively enhanced by the optimization method.

The invention relates to a once thermal molding device of optical glass, belongs to the technical field of optical glass molding, and mainly solves problems comprising high optical glass waste existing in small-molding-viscosity, short-material-property and easy-crystallization optical glass, and long production period and high cost of optical elements in the present production. The device is mainly characterized in that the device comprises a bed die, a bed die transmission apparatus, side shields, scarper plates, a burning gun, a spray gun, a leaked material tube, a cooling tube and a receiver, wherein the bed die is formed by a narrow and long module group with the modules connected through hinges and tightly arrayed in an annular mode, and the module group is provided with a sinking groove corresponding to glass preforms; the bed die is connected with the bed die transmission apparatus; the burning gun, the spray gun, the leaked material tube, the side shields, the scraper plates and the cooling tube are sequentially arranged above the annular module group; and the receiver is arranged under the side part of the annular module group. The device has the characteristics of continuous production, consistent appearance and shape, and consistent weight, and is mainly used for producing the optical glass preforms having the shortages of small molding viscosity, short material property and easy crystallization.

The invention discloses a public transportation networking system of a high-speed fully-automatic fully-closed track train. The system is provided with a main control system, wherein the main control system is connected with all networking track trains and a free control system provided with a passenger embarking and debarking functional device, and the free control system is connected with all relevant functional instruments and equipment; the carriages of all the trains are continuously arranged and filled in a fully-closed track, and the trains are connected end to end to form a circular shape. All the trains in the entire system synchronously run with the same speed, and routes respectively fitted and butted between the small circular fully-closed transfer track train and each transportation track train or between the passenger embarking and debarking functional device and each track train have the same direction, the same plane and the same speed. A plurality of stations are arranged at the track sides of the transportation trains and the change trains, and the passenger embarking and debarking functional device is respectively installed at each station. The invention has the advantages of large passenger capacity, convenience, rapidness, economy, high efficiency, environmental protection, fully-automatic running, safety, reliability and easy networking and network expanding.

The invention belongs to the technical field of paper ingot folding machines, and in particular relates to a paper oblique folding machine, which includes a bracket on which a first support plate and a second support plate are fixed, and the bracket is located on both sides of the first support plate and the second support plate A paper feeding mechanism and a paper receiving mechanism are respectively provided at the positions of the paper feeding mechanism, a paper feeding device is fixedly connected between the first support plate and the second support plate, and a tilting device is provided between the first support plate and the second support plate. Positioning device, the inclined positioning device is provided with a folding device on the side close to the delivery mechanism, and the driving device for driving the action of the inclined positioning device is installed on the second support plate; the invention realizes paper tilting that cannot be realized by other machines through rational design Positioning and diagonal folding of the front and back of the paper simplifies the complex process, reduces labor intensity and saves production costs.

The invention relates to a long-ring rapid steamer, in particular to a ring forming mechanism of the long-ring rapid steamer, belonging to the technical field of printing and dyeing equipment. The ring forming mechanism comprises crank combination parts (3), a ring forming plate (4), a main track (6), a ring chain (8) and an auxiliary track (10), wherein the ring forming mechanism comprises a plurality of the crank combination parts (3), each crank combination part (3) comprises a clamping sleeve (3.1), a crank (3.2), a pin shaft (3.3), a connecting plate (3.4) and a small rolling wheel (3.5), the outer edge surface of each clamping sleeve (3.1) is the tooth surface, the auxiliary track (10) comprises a front oblique section (10.2) and a rear straight section (10.1), a rack (10.3) is arranged on the oblique section (10.2) and the rack (10.3) is meshed with the outer edge tooth surfaces of the clamping sleeves (3.1). The ring forming mechanism of the long-ring rapid steamer can continuously form a ring in a non-intermittent manner, thereby greatly improving the production efficiency of the rapid steamer; furthermore, the rapid steamer is good in operation stability, small in noise and longer in service life.

The invention discloses a vehicle speed control method and device, a driver starts a vehicle and then pedals an accelerator to increase the vehicle speed to a specified vehicle speed, the feet of the driver are moved away, the vehicle speed control device is placed in a corresponding accelerator pedal position, and a pressing plate pedal contact part of the vehicle speed control device presses the accelerator pedal; a pressing plate moves up and down along a supporting rod of the vehicle speed control device, an instrument panel is observed, and when the vehicle speed reaches the designated speed, the pressing plate of the vehicle speed control device and the supporting rod are fixed through a fixing device; the pressing plate pressing the accelerator pedal is fixed through the supporting rod and the fixing device, constant-speed running of a vehicle at a specified speed in the experiment process is achieved through a manual combination device, test errors caused by manual vehicle speed control are avoided, and the technical scheme is simple and easy to achieve.