摘要:
Bogie for railway vehicle consisting of bogie frame (1) and at least four wheels (2a) arranged as in pairs of independently rotating wheels (2a) or arranged in wheelsets, where these wheels (2a) or wheelsets (2) are connected with swing arms (4) by means of bearings (3), where swing arms (4) are jointed to the bogie frame (1) by means of joints (5), where the suspension springs (6) are arranged between swing arms (4) and bogie frame (1) and the springs (6) belonged to swing arms (4) on one bogie side are supported each other or suspension springs (6) are supported by means of floating brace (9) on this said bogie side where motion of floating brace (9) is limited by bogie frame (1), or there is arranged only one suspension spring (6) between swing arms (4) on this said bogie side, and the suspension springs (6) belonged to swing arms (4) on the opposite bogie side are supported by means of brackets (8) fixed to the bogie frame (1).
摘要:
The low building height bogie intended for low-floor vehicles especially trams is installed so that the side rotary bogie (1) is composed of one cradle (16a), always placed approximately in the middle of the bogie, and the middle bogie (2) is composed of two cradles (16b), of which each is situated between one pair of opposite wheels with common axis of rotation. The wheels (5) of the bogie (1,2) are fixed by means of pinned bearings of the axle (11), which are bent downwards in the middle part, whereas the axle (11) contains gaps (11a) intended for insertion of the primary springing system (6). The primary springing system (6) carries the bogie chassis (12a), (12b) in which there are gaps from below (12c) intended for insertion of the primary springing system (6).
摘要:
Low-deck articulated rail vehide, particularly a tram, in either 2-car 3-bogie configuration or extended by at least one middle car and one bogie, always equipped with one rotable end bogie /1/ under both, the front and the rear parts of the vehicle, and by one middle bogie /2/ under each joint, i.e. connection between the vehide sections, while both the adjacent bodies of the vehicle are rotably mounted on each middle bogie /2/, each in its own attachment point /3/, while there are the elements of the primary and secondary springing /5/ located in the space between the pairs of individually mounted wheels and drives and brakes, particularly motors, gear boxes, disc brakes and track brakes /6/ are located at the outer sides of wheels with respect to the vehicle longitudinal axe. which allows the floor to be at low standard level even over the bogies, where it s just slightly elevated compared to the rest of the passenger space, while both the floor levels are connected with a barrier free transition consisting of gradually elevated ramps, while the standard passing width of the vehicle is met.
摘要:
System of measuring the force effect between the wheel of the railway rolling stock and the rail during ride of the rolling stock is based on detecting the deformations of the wheelset's wheel using a strain gauges system placed on one side of the wheel on one pitch circle which consists of Wheatstone complete bridges wherein the arrangement of the strain gauges system is decidedly defined by the diameter of the pitch circle R, the number of Wheatstone complete bridges, the openness angle of the bridge δ, the angular pitch of the bridges ϕ and the strain gauge's angle to the radial position β, wherein the highest accuracy of measuring of force FT is being achieved when angle β is approximately 45°, wherein during calibration the wheel (5) or the wheelset (6) rotating around its rotation axis is loaded by a rotating roller (15) which is by its circumference in contact with the wheel's (5) or the wheelset's (6) circumference, wherein the number of loading rollers (15) is two and each roller loads one wheel (5) of the wheelset, wherein thanks to its installation dimensions and construction the calibration frame is for calibration - loading placeable under the railway rolling stock (16) in which the wheel (5) or the wheelset (6) is embedded, wherein the transverse position of the loading roller (15) or rollers and support points can be changed by inserting of the reduction frame (20) of various widths for various rail gauges, wherein the calibration frame is mobile.
摘要:
The testing plant for stationary tests of railway vehicles consists of a mobile module of turning plate (101) consisting of the turning plate (102) fixed on the travel (103) and fitted with at least two adjustable wheel brackets (104) and at least one rotating hydraulic mechanism (105) and of mobile modules of twisting plant (106) and (107), where each of them consists of the main frame (108) fitted with four independent travelling wheels (109) and two vertically adjustable wheel brackets (110) connected via two lifting members (111) and setting mechanism (112) and it is furthermore fitted at least two load sensors (113) and at least two movement sensors (114), furthermore, it is fitted with at least two adapters (115) either lateral and/or longitudinal fitted to the wheel brackets (110). The mobile module of the turning table (101) consists of the travel frame (1) with radial bearing (2) installed axially on it, also with the turning table runner (3) to which at least two binders (4) are attached to which at least two wheel brackets (5) are installed, wherein the fork (8) fixed to the travel frame (1) has hydraulic cylinder (7) installed on one end and the other end has hydraulic cylinder (7) in the fork (9) attached on the turning table runner (3). The procedure of the tests is controlled using software application installed on the control computer, where the movement is controlled using curves - pre-defined sequences that give direction of the movement and change to path or angle of rotation of the binder depending on time during which the track change and movement speed should occur, whereas the control system allows controlling of multiple modules at the same time, which is synchronized module control, and the position, path of individual wheel brackets or angle of rotation of the binder is displayed on the monitor of the control computer during their movement, whereas the curve operation starts by clicking on relevant button of the control panel shown on the control computer monitor and during the curve operation, the movement can be continuously controlled using the controls on the control panel and during the curve operation, the monitor displays also force values measured on the load gauges of the controlled module, whereas measurement data is saved in the measurement computer memory for further processing.
摘要:
A device for longitudinal guiding of mutually spring-loaded parts of a rail vehicle, consisting of a bogie frame (R) and a bogie bolster (K) or the coach bottom, with a longitudinal rod (1), connecting the mutually spring-loaded parts of the vehicle by means of cross-pin joints (4) and two brackets (6,7) respectively attached to the bogie frame (R) and to the bolster (K) or the coach bottom, the longitudinal draw rod (1) being provided with forks (2) at both ends in which two friction or anti-friction bearings (3) are embedded with their outer rings, their inner rings being embedded on two pins of the cross-pin joint (4); two further friction or anti-friction bearings (5) being embedded by their inner rings on the other two pins of the cross-pin joint (4) and the bearings (5) being also embedded on one of the brackets (6,7) with their outer rings.
摘要:
The suspension of the railway bogie, particularly the freight bogie, comprised in a bogie that is equipped with a bogie frame (1) and at least two wheelsets (2) with wheels (2a) that are guided via swing arms (4) jointed to the bogie frame (1), the swing arms (4) and wheelsets (2) are assembled by bearings (3) and flexible bearing mountings (3a), the swing arms (4) are assembled with the bogie frame (1) by bushings (5) and by suspension spring assemblies (6) arranged between the swing arms (4) and the bogie frame (1), whereas to the suspension spring assembly (6) belongs the damping system, where intensity of damping effect depends on the load of the car, the damping comprises wedges (7) and friction leaf (8), at least on one side of the bogie the suspension is supported by a suspended equalization support (10) that is mounted on stabilization springs (11) that are arranged on the bogie frame (1), whereas the suspended equalization support serves as a wheel forces equalization mechanism for a bogie with the rigid bogie frame (1), where the longitudinal beams (1a) and cross beam (1b) are assembled via prestressed bolts (13).