Emergency energy absorbing device for cars railway transport
(57) Abstract:The invention relates to buffers with the absorption of shock by the residual deformation of the buffer member. The device is installed between the coupler (11) and the frame (2) of the car and consists of three plates - mobile (3), intermediate (4) and stationary (5), between which there is an energy-absorbing elements (7-9) of varying intensity. Elements (7-9) are chosen so that the first to absorb the energy from impact items (7-8) movable between (3) and intermediate (4) plates, and then the elements (9) between the intermediate (4) and stationary (5) plates and last - fixing elements (10) measured failure strength, which is stationary (5) plate connected to the housing (1). The proposed solution is aimed at ensuring the gradual increase of the force actuation and low weight devices. 3 C.p. f-crystals, 5 Il. The invention relates to railway transport and related devices-time actions to absorb the impact energy and excessive shocks railway vehicle. It can be used in other branches of engineering for the above purposes.Known energy absorbing device is a one-time action for Zheleznodorozhnyi with the latest stock, moreover, a deformable unit is designed in the form of service consistently-installed washers decreasing thickness, separated by spacers, and the stem is made with a cylindrical guide surface, paired with conical working. The rod under the action of the emergency load is included in the first as, the greatest thickness of the washer, deforming it by increasing the inner section.The drawback of the device in relatively large size of the device and possible deformation of the body, which does not allow to use the device again.Know emergency buffer device , which consists of telescopically related inner and outer cylinder, the outer surface of the latter of which holds the collar in the form of a multiple helix, separated into segments by longitudinal incisions in height.The drawback of the device in complexity achieve the specified strength of the shear created by the segments.Know emergency energy absorbing device of the vehicle  . It contains a movable rod with a tapered end that interacts with a deformable tubular element fixedly mounted on the frame of transportaton and rigidly connected to a rod oven, which also tied the other end of this rod is placed in a deformable tubular element. The disadvantage of this device is that when a sufficiently large during the guide rods must have an adequate supply of rigidity on the buckling and the great length of their guides. This increases the size and weight of the device.However, the last device most closely with its technical essence of the proposed and adopted as a prototype.The problem to be solved by the proposed device is to provide a progressive emergency power characteristics of the shock absorber, i.e. a smooth increase efforts actuation reducing the mass of the device, the possibility of implementing a relatively simple regulation characteristics energobaltia, and limiting free running after deformation.The problem is solved in that the device comprising a housing, guides, and energy-absorbing elements installed between the hitch and the frame of the car, consists of at least three plates, between which there is an energy-absorbing elements of varying intensity. One of them, mobile, connected with hitch, the other, the device, the third intermediate plate located in the housing between the other two can move it along the guide surface of the body and consequent deformation of the energy absorbing elements, the first located between the movable and intermediate plates, and then between the intermediate and stationary plates, and the maximum force of deformation of the first is less than the minimum effort deformation of the second. Plates interconnected traction-guide couplers, and a housing rigidly mounted on the frame of the carriage and provided with a limiter reverse, made in the form of lugs on the device and on the fixed plate with the opportunity to interact with each other during reverse motion of the device. Traction-guide couplers made of energy absorbing ribs (teeth), interacting with the shear edges of the holes of the intermediate plate.Energy absorbing elements in the form of tubes of variable cross-section, provided with a resistant outer bands with the opportunity to interact with jaws holes (nozzles) or bushings intermediate plate within the plastic deformation of the tubes. You can perform an energy-absorbing elements in the form of a rigid steamy intermediate plate within the plastic deformation of the holes.In Fig.1 shows a General view of the device.In Fig. 2 and 3 (Type a and B) presents the installation of energy-absorbing elements.In Fig. 4 (Type b) shows an energy-absorbing ribs on the traction-guide couplers.In Fig. 5 (Type D) shows the fastening of the fixed plate to the housing of the device.The device consists of a housing 1 fixed to the frame 2 of the car, and the three plates - mobile 3, intermediate 4, and fixed 5 installed on the guides 6.Between the movable plate 3 and the intermediate 4 is installed energy-absorbing elements 7 in the form of hollow tubes of variable cross-section (Fig. 2) or in the form of a rigid rod 8 with bands of different diameters (Fig.3).Traction-guide couplers made of energy absorbing ribs (teeth) 9 (Fig. 4). The fixed plate 5 is fixed to the body 1 of the fastening elements 10 measured failure strength (Fig.5). The movable plate 3 is connected to the coupling 11.The device operates as follows. When the application to the trailer hitch 11 compressive forces occurring as a result of sharp braking or emergency collision of cars, the latter is transmitted to the movable thrust plate 3, and then through the energy absorbing cell battery (included) is fixed on the support plate 5, the fastening elements 10 and closes with the stops made on the housing 1 (in the form of an annular ledge or legs), on the frame 2 of the car. Under the application of tensile (pulling) effort on the part of the hitch 11 is transmitted to the thrust plate 3, then the traction-coupling of the coupler 6, the support plate 5, the housing 1 and through the fastening bolts 12 of the housing 1 to the frame 2 of the car.To ensure maximum passenger safety by minimizing accelerations cars when they collisions settlement efforts positives at all levels and elements emergency shock absorber provided on the rise, since the minimum specified at the beginning of the operation to the maximum at the breakage of the fastening elements 10.If during splicing cars collision energy is sufficient to trigger the first stage, then there is compression resistant belts on the energy absorbing tubes 7 and the last dive into the holes of the intermediate plate 4. The plate 3 is moved toward the intermediate plate 4. Since the diameter of the holes (filerow) plate 4 is significantly less than the outer diameter of the tubes 7, the energy required to push the pipe through a die, dampens the energy of the collision. If the impact energy is greater than enersource plate 4, made of solid hardened steel alloy will start to cut the ribs 9, made of soft metal (for example, nesacaine steel or aluminum). To ensure self-chips ribs last run on the tie-rods 6 in the form of sectors and thus cut edges do not prevent the cutting of new edges. This process lasts until the stop plates 3 and 4 in the support plate 5, and in the case of nepogashennoi energy is the destruction of fasteners 10. The connection of the hitch to the carriage in the direction of compression is lost and the linkage moves freely in undercar space, thus triggering other means of protection of passengers in case of accidents (for example, actuation of the sacrificial part of the body of the car and so on).Gradual increase of load resistance to impact all levels of emergency absorber is due to a consistent increase in the thickness of the tubes 7 in the first stage and due to variations in the thickness and length of the ribs 9 on the second level. When used in the first stage instead of the tube 7 tube 8 bands fade efforts is achieved by a stepwise increase of the diameter of the belts. The bands however are made of solid steel, and the walls of the holes square is - solid.Sources of information
1. Author's certificate N 668838. Energy absorbing device is a one-time action for rail transport. 1979.2. Author's certificate N 867746. Emergency buffer unit. 19813. RF patent N 1326490. Emergency energy absorbing device of the vehicle. 1986 (prototype). 1. Emergency energy absorbing device for cars railway transport, comprising a housing, guides, and energy-absorbing elements, characterized in that the device is installed between the hitch and the frame of the car consists of at least three plates, between which there is an energy-absorbing elements of varying intensity, one of which is movable, connected with hitch, other, still, is connected to the housing fixing elements measured failure strength in the direct course of the device, the third intermediate plate located in the housing between the other two can move it along the guide surface of the body and consequent deformation of the energy absorbing elements, first located between the movable and intermediate plates, and then between the intermediate and not the ryh, plates interconnected traction-guide couplers, and a housing rigidly mounted on the frame of the carriage and provided with a limiter reverse.2. Emergency energy absorbing device under item 1, characterized in that the limiter reverse made in the form of lugs on the device and on the fixed plate with the opportunity to interact with each other during reverse motion of the device.3. Emergency energy absorbing device under item 1, characterized in that the energy absorbing elements in the form of tubes of variable cross-section, provided with a resistant outer belt with the opportunity to interact with jaws bushings intermediate plate within the plastic deformation of the tubes.4. Emergency energy absorbing device under item 1, wherein the energy absorbing element is designed in the form of rods with bands consistent with the increase in diameter with the opportunity to interact with the holes of the intermediate plate within the plastic deformation of the holes of the intermediate plate.
FIELD: railway transport.
SUBSTANCE: invention relates to buffer stops on tracks. Proposed buffer stop contains energy-absorbing member secured on fixed support. Inlet part of outer surface of energy-absorbing member is arranged in die plate secured on support plate of fixed support with space of capacity exceeding overall dimensions of energy-absorbing device made in form of cylindrical cup, on inner surface of bottom of cylindrical cup pusher of shock-taking head being installed for interaction with automatic coupler of car or locomotive of train to be braked and with upsetting of outer of cup at its pulling through die plate. Inlet part of outer surface of energy-absorbing member and working surface of die plate are made in form of right and backward cones with close angles of opening.
EFFECT: provision of controllable emergency braking of train according to required change of acceleration value not exceeding tolerable value owing to plastic deformation of energy-absorbing member with required parameters.
2 cl, 2 dwg
FIELD: railway transport.
SUBSTANCE: invention is related to the field of railway transport, namely to towing devices intended for couplings of rolling stock. Towing device comprises rod, on the back end of which finger is available. Finger protrudes in axial direction via through hole in plate. Both sides of plate cover spring shock-absorbing elements that always try to support finger in initial position relative to plate and under action of which finger and rod may move in axial direction. Plate is located in holder, which has cone and is inserted into deformable tube. Wide front part of tube via journal passes into narrower back part that is deformed as holder penetrates in it. Deformable tube has cylindrical shape as a whole and comprises back part that via journal narrowing to cone passes into wider front part, to which flange is connected to fix deformable tube in frame or in chassis of transport facility unit. Inside wide front part there is facility for fixation of clamping ring.
EFFECT: possibility is achieved to absorb and suppress large amount of energy that is produced in case of collisions, without specific protection facilities against collision and simplified design of device.
8 cl, 6 dwg
FIELD: railroad transport.
SUBSTANCE: invention relates to track power-absorbing devices intended for protecting rolling stock against damages and passengers against injuries (PAD) in emergent collusions between train and fixed buffers at railway terminal passenger platforms. PAD comprises power absorption elements assembled on fixed support. 1st stage power absorbing element represents a pipe with its one end fitted with shock-receiving top, and its other end arranged in the draw plate attached to moving support plate mounted on power absorbing element of the following stage. Note here that last stage draw plate is attached onto fixed support plate mounted on the base that has a cavity with sizes exceeding those of last stage power absorbing element. Note also that shock-receiving top represents a head part of CA-3 automatic coupling. Forward part of outside surface of every power-absorbing element and working surface of mating draw plate represent right and reversed cones with approximating angles of opening. Mind that outer diametre of absorbing element cylindrical part exceeds that of draw plate hole, while draw plate cone angle exceeds that on power absorbing element pipe.
EFFECT: higher power capacity and preset performances of emergent braking equipment.
2 cl, 1 dwg
SUBSTANCE: invention relates to power-absorbing assembly 10 to be used integrated with UIC-buffer or side buffer 100. Said power-absorbing assembly 10 has main plate 2 to joint assembly 10 to support frame or chassis 101 of the main structure and, preferably, to allow its detachment, connection plate 1 whereto UIC buffer 110 may be connected, and protective power-absorbing element 3 to be arranged between main plate 2 and connection plate 1 to thrust there against, and with no play.
EFFECT: reliable dissipation of shock power.
14 cl, 3 dwg
FIELD: mechanical engineering.
SUBSTANCE: invention refers to the energy absorbing device, as well as its use in the quality of impact force protective device for the main frame of track vehicles or in the quality of impact force protective device for the permanent items of equipment, particularly, buffer stop. The energy absorbing device comprises absorbing element (10) and mating member (20). Provided the exceedance of the impact force, applicable to the energy absorbing device, the mating member (20) and absorbing element (10) are shifted in the direction to each other. Simultaneously absorption of at least some part of impact energy, applied to the energy absorbing device, takes place. The mating member (20) constitutes a hollow body, open from one end and situated adjacent to the absorbing element (10) for the purpose of forming at least one energy absorbing section (11), produced out of composite material with fibre filler. Fragments of energy absorbing section (11), produced out of composite material with fibre filler, may get inside a hollow body.
EFFECT: dissipation of high impact energy and energy absorbing device construction simplification.
24 cl, 5 dwg
SUBSTANCE: invention relates to machine building. Proposed damper comprises main plate, force transfer element with clamp, deformable energy absorbing tube with its first end jointed with main plate, and connection element for coupling force transfer element with deformable tube second end. Connection element is coupled by screw joint with structural frame rigidly connected with main plate to press on clamp so that deformable tube is clamped without clearance between said clamp and main plate.
EFFECT: higher reliability in damping impacts.
21 cl, 18 dwg
SUBSTANCE: invention relates to railway transport. Proposed module consists of three plates: moving, intermediate and fixed with energy damping elements arranged there between. Fixed plate is jointed with vehicle, moving and intermediate plates are arranged to displace and shear material from said damping elements arranged between moving and intermediate plates and between intermediate and fixed plates. Maximum first damping element shearing force is smaller than that of second damping elements. Damping element sheared surface presents rings with outer multistart spiral and at least two lengthwise grooves. Damping elements are secured, on one side, by bushes with cutting edges, locating bushes, washers with fasteners on intermediate and fixed plates and coupled, on the other side, with moving and intermediate plate to shear preset thickness of material of ring multistart spiral material.
EFFECT: expanded operating performances, simplified design, higher efficiency.
SUBSTANCE: invention relates to railway transport. Proposed module consists of casing to be mounted on vehicle and energy damping element with, at least, one bead made on element outer diameter to interact with casing front end. Said bead represents a multifilar helix. Plug-in insert with cutting edge facing said bead is arranged at casing front end. Said energy damping element is secured axially, on one side, jointly with plug-in insert at casing front end and, on the other side, is mounted in moving plate. Plug-in inserts has cutters arranged on cutting edge side extending beyond cutting edge and inner diameter of multifilar helix by magnitude exceeding their design wear. Quantity of cutters, their width and quantity of energy damping elements and their length are defined by design parameters of energy damping.
EFFECT: simplified manufacture, higher efficiency and reliability.
SUBSTANCE: invention relates to railway equipment, particularly, to cars couplers. Proposed coupler assembly comprises tie device (10) arranged between front limiter (6) and rear limiter (7) between car central girders (1, 2). Front limiter (6) is rigidly connected with central girders (1, 2) of car frame. Rear limiter (7) is can displace between central girders (1, 2) of car frame. Thrust bracket (9) is located behind rear limiter (7) permanently connected with car frame. Energy absorbing unit (12) of high absorption capacity is arranged between thrust bracket (9) and rear limiter (7). Bar (8) is connected with rear limiter (7) to displace towards bore (13) with mechanical cutters (15) secured over periphery of said bore.
EFFECT: decreased weight of coupler, simplified design, damping of high energy originating in car frame.
10 cl, 16 dwg