297results about "Different width rail tracks" patented technology

A rail car mover apparatus for a loader vehicle comprises means to rotatably attach a pair of front rail wheels to a front end of the loader vehicle such that the front rail wheels are spaced to engage the pair of railroad rails and such that the front rail wheels can move up and down in response to forces exerted by a front actuator; means to rotatably attach a pair of rear rail wheels to a rear end of the loader vehicle such that the rear rail wheels are spaced to engage the pair of railroad rails and such that the rear rail wheels can move up and down in response to forces exerted by a rear actuator; and a coupler adapter adapted at a rear end thereof for attachment to a front portion of the loader arms and adapted at a front end thereof for coupling to a rail car hitch.

The invention discloses a variable-track-gauge wheel set and a locking mechanism thereof. The locking mechanism of the variable-track-gauge wheel set is arranged between a wheel hub and a wheel axle and used for locking wheels at different positions of the wheel axle to adjust the distance between the two wheels. A guiding structure for guiding the wheels to move axially is arranged on the wheel axle, and the locking mechanism adjusts the wheels to designated positions and then locks the wheels at the designated positions. On the premise that a variable track gauge is achieved, it is ensured that the wheel set has enough flexibility, reliability and accuracy.

The invention belongs to the technical field of bogie systems, and particularly relates to a variable gauge bogie. The variable gauge bogie comprises an axle assembly, a sliding key assembly and an axle box assembly. The axle assembly comprises an axle and a bearing and wheel integrated mounting seat. The sliding key assembly comprises a sliding part. The axle box assembly comprises an axle box and a bearing. The position from a wheel seat to the end part of the axle is provided with a moving pair connecting part. The bearing and wheel integrated mounting seat comprises a bearing mounting seat and a wheel mounting seat which are mutually connected and further comprises a moving pair junction part. The moving pair junction part and the moving pair connecting part form an axial moving pair. The sliding part is of a cylindrical body. The outer side wall of the cylindrical body is in axial slidable connection with the axle box. The inner side wall of the cylindrical body is in axial fixed connection with the bearing mounting seat through the bearing. The wheel axial direction of the variable gauge bogie is adjustable to be adapted to different gauges, railway transportation of ''Silk Road Economic Belt'' is developed, and the problem that railway gauges are not uniform must be solved, therefore, it is very important and far-reaching to carry out design of the variable gauge bogie.

The invention provides an axle box device of a non-power wheel pair of a D-series high-speed train for realizing standard gauge and wide gauge conversion. The device is characterized in that a slidingmechanism is mounted on a non-power axle; a non-power wheel and an axle box assembly sleeve the sliding mechanism and are fixed on the sliding mechanism; the sliding mechanism is used for driving thenon-power wheel to slide on the non-power axle when a gauge is changed and used for being matched with the non-power axle to transfer torque so as to drive the non-power wheel to rotate during operating; a locking mechanism is arranged between the sliding mechanism and the axle box assembly and is used for locking and fixing the sliding mechanism before and after the gauge is changed; a bearing base is mounted at the bottom of the axle box assembly and is used for bearing a vehicle when the sliding mechanism slides; and axial positioning mechanisms are arranged at two ends of the non-power axle and are used for realizing axial positioning of the axle. The structure can enable the distance between the inner sides of the wheel pair to adapt to a new gauge value, thereby solving the problemsin the prior art that the distance between the inner sides of the wheel pair is fixed and can not adapt to gauge change and a bogie needs to be replaced.

The invention relates to the field of variable gauges for rail vehicles, and discloses a wheel set for a variable gauge bogie and the bogie. The wheel set comprises wheels, an axle and variable gaugemechanisms, and the variable gauge mechanism comprises a fixed sleeve, a locking pin, a mitigation sleeve and an unlocking disc. The wheels are slidably disposed at two ends of the axle, and the variable gauge mechanisms are respectively disposed on the inner side axle of the wheel, and by pushing the unlocking disc to drive the locking pin to move upwards, the fixed sleeve is unlocked with the mitigation sleeve. Therefore, the wheels are locked or unlocked conveniently, to achieve the variable gauge. The wheel set variable gauge process is convenient and reliable.

The invention belongs to the technical field of bogie systems and particularly relates to a gauge transformation method. The gauge transformation method comprises the following steps that (i) a bogieis supported, so that wheels are unloaded; (ii) sliding pieces are unlocked, so that the wheels are separated; and (iii) the wheels are slid to change rails. The purposes of the gauge transformation method are that aiming at the problem that when a train passes through railways with different gauges, the transport efficiency is low, the gauge transformation method is provided, based on the method,the wheels of the bogie can be adjusted in the axial direction relative to an axle, and thus the wheel distance of a wheel set of the bogie is transformed to adapt to the railways with the differentgauges. Railway transportation of 'Silk Road Economic Belt' is developed, thus the problem that the railway gauges are not uniform is faced, the situation that the variable-gauge bogie is provided forthe train is the most economical and efficient way to solve the problem of non-uniform railway gauge specifications, and therefore, quite important and profound significance is achieved on development of design of a variable-gauge bogie system.

In a track-guided vehicle wheel truck, a guide frame can be turned relative to a steering axle of a running wheel. A support shaft is adjustably provided on the guide frame. A receiving member is provided projecting toward the vehicle end side. A link lever capable of interlocking the turning of the guide frame and the steering of the running wheel, is provided along the vehicle front and rear direction. A center-side end part of the link lever is rotatably mounted to the receiving member. A vehicle end-side end part of the link lever is rotatably mounted to a connecting rod that enables the steering of the running wheel. A long hole extending in the vehicle front and rear direction, is provided in an intermediate part of the link lever. The long hole and the support shaft are rotatably engaged with each other at a given position.

The invention discloses a driving gauge-changing device and method of a gauge-changeable bogie. The driving gauge-changing device is composed of a sliding block assembly, an upper shaft box shell, a lower shaft box shell, a first shaft box end cover, a second shaft box end cover, a third shaft box end cover, a bearing boot, a lock head, a locking mechanism cover, a diaphragm type pressure sensor,a pull wire type displacement sensor, a lock head in-position switch, a data processing module, a controller, a first transverse hydraulic cylinder, a second transverse hydraulic cylinder and a vertical hydraulic cylinder. The controller controls the expansion and contraction of each hydraulic cylinder according to the digital signals of the diaphragm type pressure sensor, the pull wire type displacement sensor and the lock head in-position switch from the data processing module so that the gauge-changeable bogie can automatically complete the unlocking and locking of wheels and the transformation actions of the wheels under different gauge.

A track-guided vehicle wheel truck prevents wear and deterioration of a guide wheel and a guide rail, and ensures running stability while simplifying the structure. In the track-guided vehicle wheel truck, a guide frame 8 to which a guide wheel 9 guided by a guide rail 1 is mounted, can turn relative to a steering axle 6 of a running wheel 5. A support shaft 21 is provided on an axle bracket 20 provided in the steering axle 6 so as to be movable in the vehicle front and rear direction by straddling the steering axle 6. A link lever 22 capable of interlocking the turning of the guide frame 8 and the steering of the running wheel 5 is provided along the vehicle front and rear direction. A vehicle end-side end part of the link lever 22 is rotatably mounted to a connecting rod 19 that enables the steering of the running wheel 5. An intermediate part of the link lever 22 is rotatably mounted to the guide frame 8. A long hole 22a extending in the vehicle front and rear direction is provided in a center-side end part of the link lever 22. The long hole 22a and the support shaft 10 are rotatably engaged with each other at a given position.

The invention relates to the field of railway vehicle variable gauges and discloses a ground rail transfer device used for a variable-gauge bogie. The ground rail transfer device comprises a pair of supporting rails arranged in parallel, a pair of first guide rails, a pair of variable-gauge guide rails and a pair of second guide rails, wherein the first guide rails, the variable-gauge guide railsand the second guide rails are sequentially arranged along the inner sides of the pair of the supporting rails. Unlocking sections are arranged between the first guide rails and the variable-gauge guide rails, locking sections are arranged between the variable-gauge guide rails and the second guide rails, pushing locating devices are arranged on the inner/outer sides of the unlocking sections andthe inner/outer sides of the locking sections and used for applying transverse thrust to variable-gauge wheel sets of the variable-gauge bogie passing through the unlocking sections and the locking sections, unlocking emergency braking sections are arranged behind the unlocking sections, and locking emergency braking sections are arranged behind the locking sections. Unlocking and locking reliability is improved, emergency braking can be conducted conveniently once a train fails in unlocking or locking, and potential safety hazards existing on existing ground rail transfer devices are eliminated.

The invention discloses a transportation vehicle, and particularly relates to a traffic system equipped with tracks. The vehicle of the invention is provided with two sets of track wheels: one set of narrow track wheel and one set of wide track wheel, wherein, the narrow track wheel is suitable for two tracks with a smaller space, and the wide track wheel is suitable for two tracks with a larger smaller space, the position of the narrow track wheel is fixed, the position of the wide track wheel can be axially switched internally and externally. The fork of the used track adopts upper and lower layer structures, the main track generally adopts narrow gauge (wide gauge can also be adopted), the upper fork adopts wide gauge, and the lower layer adopts narrow gauge; the running path at the fork is decided by the vehicle, when the wide track wheel is switched to the inside position, the vehicle selects to run on the lower fork; and when the wide track wheel is switched to the outside position, the vehicle selects to run on the upper fork.

A low floor vehicle reduces, when the vehicle enters a curved track, the lateral force of the vehicle, prevents occurrence of vibration and creaking sounds of the vehicle, improves riding quality of passengers, and reduces wear of wheel flanges. A low floor vehicle includes a bogie frame 9 of a bogie 7, a pair of bogie frame cross beams 9a arranged along a vehicle lateral direction in the middle of a vehicle longitudinal direction of the bogie frame 9 and arranged spaced apart from each other in the vehicle longitudinal direction, and a pair of wheels 8 provided in each of a vehicle front edge direction and a vehicle rear edge direction with respect to the pair of bogie frame cross beams 9a of the bogie frame 9 and configured to travel on a track 1. A pair of flexible traction rods 15 arranged along the vehicle longitudinal direction and configured to be capable of extending and retracting in the vehicle longitudinal direction are provided in the bogie 7, the pair of flexible traction rods 15 are arranged spaced apart from each other in a vehicle lateral direction, one ends 15b of the flexible traction rods 15 are attached to the bogie frame cross beams 9a, and the other ends 15c of the flexible traction rods 15 are attached to a receiving section 6c of in the vehicle body 6, and the bogie 7 is configured to be capable of turning with respect to the vehicle body 6.

The invention relates to the technical field of changeable gauge of railway vehicles, and discloses a sealing structure for gauge-changeable wheelsets. The sealing structure comprises an outer ring, an inner ring and an elastic sleeve, wherein the inner diameter of the outer ring is larger than the outer diameter of the inner ring. One end of the elastic sleeve is fixedly connected with the innercircumference of the outer ring, the other end of the elastic sleeve is fixedly connected with the outer circumference of the inner ring, and the outer ring can drive the elastic sleeve to move relative to the inner ring together. The sealing structure for the gauge-changeable wheelsets has a simple and compact structure, and wheels and axles can be well sealed when gauge is changed.

The invention relates to a rail construction engineering van capable of changing rails. The rail construction engineering van comprises a main underframe (6) which is connected with inner rail wheels (14), a hopper (40) and auxiliary frames (1). The rail construction engineering van capable of changing rails is characterized in that a lifting assembly comprises lifting hydraulic cylinders (5) connected with the main underframe (6), and each pair of lifting hydraulic cylinders (5) are hinged to a supporting beam (12); an outer rail wheel assembly comprises tubular cross beams (4) connected to the main underframe (6), sliding cross beams (3) are arranged in the tubular cross beams (4), and the sliding cross beams (3) are hinged to telescopic oil cylinders (35); the sliding cross beams (3) are hinged to outer rail wheel carriers (24), and outer rail wheels (28) are hinged to the outer rail wheel carriers (24). Due to the fact that the technology is adopted, the rail construction engineering van capable of changing rails can be flexibly switched between a laid inner rail and a temporary rail, and concrete can be transported easily.

The invention provides a low-power radial welding bogie comprising two wheel sets, a three-piece side welding beam and a crossbeam. Two ends of the side beam are connected with the wheel sets through primary rubber-metal pads and bearing saddles respectively. The wheel sets are connected with a wheel set connecting device through the bearing saddles. A crossbeam assembly is connected with the side beam through two secondary suspension systems. A foundation brake gear is suspended on the crossbeam assembly or the side beam. The secondary suspension systems have multiple structural styles, and the wheel sets are of variable- gauge structures. Compared with conventional freight car bogies, the low-power radial welding bogie has the advantages that the bogie is good in uniform load performance; defects of cast structure swing bolsters and side frame casting are avoided; wheeltrack acting force is reduced, and wear parts of the suspension systems are reduced; the variable-gauge wheel sets meet requirements on variable-gauge performance of the bogie; high-speed operation stability of the bogie is improved, and rim wear generated when the bogie passes curves is reduced; the bogie can meet the requirements on maximum axle load of 30t and highest running speed of 200km/h.