46results about How to "Not easy to derail" patented technology

The invention relates to the technical field of railway production equipment, in particular to a high-precision wheel set positioning and transferring mechanism for production of railway vehicles. Thehigh-precision wheel set positioning and transferring mechanism comprises linear moving devices, synchronous devices and wheel set positioning devices. Each wheel set positioning device comprises a moving mechanism, a buffering mechanism and a shaft positioning mechanism. A wheel set is placed on rails. The shaft positioning mechanisms are arranged on the two sides of the wheel set and clamped ona rotating shaft of the wheel set. The buffering mechanisms are installed below the shaft positioning mechanisms. The working direction of the buffering mechanisms is the same as the conveying direction of the wheel set. The moving mechanisms are installed below the buffering mechanisms and drive the buffering mechanisms to move towards the wheel set from the two sides of the wheel set. The synchronous mechanisms and the moving mechanisms are all installed on the linear moving devices. The linear moving devices are arranged on the two sides of the rails. The conveying direction of the linearmoving devices is the same as the conveying direction of the wheel set. The high-precision wheel set positioning and transferring mechanism does not need high-precision racks, the safety synchronous mechanisms are installed on the linear moving devices of the high-precision wheel set positioning and transferring mechanism, and the wheel set is not prone to running off the rails or neither damagingracks when being conveyed.

The invention relates to a traveling wheel mechanism with an automatic lifting function and for a rail trolley. The walking wheel mechanism has an advancing function, a hydraulic lifting function anda fastening limiting function, and can achieve safe and reliable advancing, ascending, descending and fastening limiting between the rail trolley and an H-shaped rail. The traveling wheel mechanism comprises an advancing structure, a hydraulic lifting structure and a fastening limiting structure; the advancing structure comprises an advancing wheel matched with the H-shaped rail; the hydraulic lifting structure comprises a hydraulic oil cylinder used for driving the advancing wheel to ascend or descend to be separated from or make contact with the H-shaped rail; when the traveling wheel is incontact with the H-shaped rail, the rail trolley is supported on the H-shaped rail through the traveling wheel, and at the moment, the rail trolley is in an advancing state; when the traveling wheel is separated from the H-shaped rail, the rail trolley is supported on supporting frames on the two sides of the H-shaped rail, and the rail trolley and the supporting frames are fastened and limited through the fastening limiting structure, and at the moment, the rail trolley is in a fastening limiting state.

The invention relates to an automatic delivery device for meals and a method for automatic delivery of meals in a restaurant. The device includes: a meal delivery track, which is a guide rail laid on a track support, and the position corresponding to each table position on the guide rail Proximity sensors are respectively provided at the corners of the guide rails and guide rails, and sliding contact lines are provided on both sides of the guide rails; the dining car includes power locomotives symmetrically arranged at both ends and several compartments connected in series between the two locomotives. The locomotives are used for traction When the whole vehicle is running, there are brushes on both sides of the bottom plate of the front, which are used to take power from the trolley line; guide wheels and balance wheels are respectively arranged on both sides of the front and the two sides of the carriage, to keep the body along the The movement of the rails and the left and right balance of the body; the console is used to control the operation of the food delivery car. The invention has high safety performance, stable operation of the food delivery car, is not easy to derail, and can deliver the food specified by the customer to the designated table, which solves the problem that the current automatic food delivery restaurant has single functions and cannot meet the different needs of customers.

The invention relates to novel hoisting equipment, in particular to a tube rail hoisting device which is of an integrated hoisting structure combining a tube rail and a ball wheel trolley. The tube rail hoisting device includes the tube rail, the ball wheel trolley, limiting flanges, connecting structures and counter flanges; the tube rail is composed of a plurality of sections of straight groovedpipelines and curved grooved pipelines, and the sections are connected and fixed by the counter flanges; the tube rail is fixed to the tops of an adit or buildings such as a factory through the connecting structures; the ball wheel trolley is built in the tube rail; and the limiting flanges are installed to the outermost ends of the head and tail sections of the tube rail to limit the travel of the ball wheel trolley. The tube rail hoisting device is high in safety, low in cost and simple to install and operate, and can be widely used in various medium and small hoisting places, especially inhoisting operations of various underground projects.

The invention belongs to the field of ship and marine engineering test facilities, and specifically discloses a track for an underwater traveling wheel that is not easy to derail, comprising a lower rail surface, a side rail surface and an upper rail surface. A number of rotating rollers are arranged; the opposite sides of the two rail surfaces are respectively provided with buffer plates, and a plurality of buffer parts are installed between each buffer plate and its adjacent side rail surfaces. The track provided by the present invention can limit the two traveling wheels of each group of traveling wheels together, and form a guide bar between the two traveling wheels to limit the offset distance of the traveling wheels, and limit the traveling wheels to the inside of the track ; The rolling contact between the roller and the running wheel greatly reduces the wear of the running wheel and the track. At the same time, the upper rail faces the floating wheel to limit the floating of the running wheel, so that the running wheel is not easy to derail. With cooperation, it can move to both sides. When the running wheel is deflected, the buffer plate can effectively buffer the deflection to prevent the running wheel from hitting the side rail surface and prevent the damage of the track.

The invention discloses a device for increasing the running speed of a shallow groove turnout of a tram, comprising: a ballast bed, a steel plate, and a turnout rail; A deep groove of a certain thickness is planed according to the existing turnout rail type, and the steel plate is clamped on the turnout rail through the deep groove, and the deep groove is used to limit the movement of the steel plate. The invention also discloses a method for improving the running speed by utilizing the device. When the trolley wheel pair turns quickly and passes the curved track, the increased part of the turnout rail has a better rail protection effect on the wheel rim, which ensures the safe operation of the tram. The technical solution of the present invention has a short construction period and is easy to implement , does not affect the normal operation of the electric bus.

The invention relates to the technical field of railway production equipment, in particular to a high-precision wheel pair positioning and transferring mechanism for railway vehicle production. Linearmoving devices, synchronous devices and wheel pair positioning devices are included. Each wheel pair positioning device comprises a moving mechanism, a buffering mechanism and a shaft positioning mechanism. A wheel pair is placed on an iron rail. The shaft positioning mechanisms are arranged on the two sides of the wheel pair and are connected with a rotation shaft of the wheel pair in a clampedmanner. The buffering mechanisms are arranged below the shaft positioning mechanisms. The work direction of the buffering mechanisms is the same with the wheel pair transportation direction. The moving mechanisms are arranged below the buffering mechanisms and drive the buffering mechanisms to move towards the wheel pair from the two sides of the wheel pair. The synchronous devices and the movingmechanisms are arranged on the linear moving devices. The linear moving devices are arranged on the two sides of the iron rail. The transportation direction of the linear moving devices is the same with the wheel pair transportation direction. The mechanism does not need a high-precision rack, safety synchronous mechanisms are arranged on the linear moving devices of the mechanism, the wheel pairis not prone to derailing during transportation, and rack damage is not likely to happen.

The invention provides a two-way traction trolley for a railway track bed operation device, which includes a trolley support (11), trolley wheels (10) are installed on both sides of the trolley support (11), and a frame bottom is installed above the trolley support (11). Beam (13), the front and rear of the trolley support (11) are respectively connected to the support frame by a drawbar, the front and rear of the trolley support (11) are equipped with a traction support fixing frame, and the drawbar and the trolley support (11) ) are connected by the traction support fixed frame, the trolley bracket (11) is connected with the frame bottom beam (13) by a hydraulic cylinder, and the frame bottom beam (13) and the trolley bracket (11) are also equipped with Depress cylinder (14). By controlling the flow supplied by each hydraulic cylinder, the towing car can be tilted up or down to meet the lifting or lowering of the towing car on the curved road section. By pressing down the cylinder, a vertical downward load can be applied to the towing car to ensure traction during operation. The stable operation of the trolley makes it difficult for the traction trolley to derail, thereby improving the quality of work such as sewage suction on railway track beds.

The invention relates to a construction method for a dividing sleeper of a portable novel shielding tunneling machine backup trailer and an accumulator car system, which is used for separating an accumulator car sleeper from a trailer sleeper, so as to be independent from each other. The method can reduce steel consumption, effectively lighten the weight of the sleeper, and is convenient for dismounting; a shield trailer and an accumulator car can respectively work steadily and reliably; labor intensity of workers is reduced, labor efficiency of workers is improved, and occurrence rate of safety accidents of workers is reduced; the sleeper is not easy to derail after being used, a trailer running system and a platform accumulator car running system are divided into two independent running systems which do not interfere each other, the trailer and the platform accumulator car do not interfere each other and run in respective independent track systems; and the production and operation safety performance are high, the effect is remarkable, and the mechanical efficiency of operation is high.