Rotating-axial superhigh switch on railway
Technical field
The present invention relates to a kind of railway switch, particularly a kind of rotary shaft that helps improving road speed has the railway switch that superelevation is provided with.
Background technology
The frog centre of the common railway track switch of using exists wheel along groove now, that is to say between the track switch that two strands of railways intersect one section space is arranged, be referred to as " idle space " in the industry of this section space, Train Wheel by the time " jumping car " phenomenon such as jolt, shake, wave, and track switch to damage application life easily low.Owing to the shared railway frog point of two-way driving (wheel is along groove) superelevation can't be set, therefore, train driving has the speed limit requirement, is generally 75km/h or 45km/h.
The movable head track switch of Japan is mainly used in high-speed railway, also is because the shared railway frog of two-way driving is sharp superelevation to be set, and limited train speed to a certain extent, and area occupied is long especially.Its movable head part steering angle is little, but pivoted arm is long especially, and rotational stiffness is big, the cost of production height.
Summary of the invention
The technical problem to be solved in the present invention provide a kind ofly improve road speed and stationarity, improve track switch and wheel application life, rotating-axial superhigh switch on railway that area occupied is little.
In order to solve the technical problem, the technical solution used in the present invention is:
A kind of rotating-axial superhigh switch on railway comprises direct movement rail, rut movement rail, and direct movement tongue rail, rut movement tongue rail, frog centre and frog rail, described frog centre is made of transition, slide plate; Described slide plate fixedly is loaded on above the sleeper, and position corresponding with described frog rail tip on the described slide plate is provided with axial trough; One end of described transition is provided with the down inserting type rotating shaft, described rotating shaft and described axial trough are rotatably connected, the other end of described transition is a free end, the free end of described transition docks with the direct movement tongue rail afterbody or docks with the rut movement tongue rail afterbody, the bottom of described transition is provided with stretches out handle, it is hinged to stretch out handle and transmission control hinge bar, the driving rail level of described transition is to be made of craspedodrome rail level and rut movement rail face, wherein the rut movement rail face is higher than the craspedodrome rail level, and the difference in height between craspedodrome rail level and the rut movement rail face constitutes superelevation.
Because the driving rail level of transition is provided with two driving rail levels straggly, difference in height between craspedodrome rail level and the rut movement rail face constitutes " superelevation ", so just the rut movement rail outer rail can be arranged to exceed one section progressive, superrelation on curve than interior rail, the rut movement rail face of transition forward and backward respectively with rut movement tongue rail and angle rail (frog rail) along connecing.Thereby, can guarantee further that train operation is steady, improve the speed of a motor vehicle.The superelevation height is determined according to speed limit and curvature.To improve the speed of a motor vehicle and running stability.
Can also give perfect to described rotating-axial superhigh switch on railway: in the left and right sides of slide plate, with the corresponding position of transition baffle plate is set, the baffle plate inboard be provided with and the corresponding caulking groove of the side view of going through transition, to guarantee enough lateral support.
The present invention changes the existing track switch fork heart into rotating shaft, between tongue afterbody and railway frog axle center, add one section transition, by the switching between the transition free end is outside two tip of a root rail afterbodys, realize turning to of track switch (driving), transition length can be selected according to the size of track switch number, and principle is that baffle plate does not disturb wheel to advance.Transition is converted into the small rail gap of twice with original " wheel is along groove ", and has eliminated the hidden danger of " skidding off track ".
The invention solves the superelevation setting of track switch and wheel along " jumping car " phenomenon of groove.
The present invention and common track switch are compared: eliminated " wheel is along the groove " of common track switch, improved road speed and stationarity, improved the application life of track switch.Original " wheel is along groove " is converted into the small rail gap in two places, eliminates the hidden danger of " skidding off track ".The roar when greatly reducing train and the sense of jolting by track switch, the application life of having improved track switch and wheel.Rotating shaft of the present invention is a down inserting type, and inserting the axle diameter of axle down can be consistent with transition seating plane width, has enough shear strengths and rigidity to guarantee rotating shaft.
The present invention compares with the movable head track switch and the old-fashioned track switch of Japan: the present invention is provided with certain " superrelation on curve " on rut movement rail-transition and the capable section of angle rut, increase substantially driving maximum speed limit standard and stationarity.Movable head track switch is only applicable to the ultra-large type track switch more than No. 38, takes up an area of length, and does not have superelevation; The present invention is applicable to all number track switches, under identical speed limit situation, little many of number level of the present invention, and reduced occupation of land length, movable head track switch will be used potassium steel, track switch of the present invention need be with the potassium steel except that transition, and all the other all can use the steel of old-fashioned track switch, but track switch cost first mate degree reduces.Movable head track switch is not owing to there being the axle center, to the power requirement height of driving force machinery; Track switch of the present invention is a rotary shaft, driving force is required not quite, with identical the getting final product of existing common tongue transmission device.
Description of drawings
Fig. 1 is existing common track switch schematic diagram,
Fig. 2 is existing Japanese movable head track switch schematic diagram,
Fig. 3 is a rotating-axial superhigh switch on railway general plane schematic diagram,
Fig. 4 is the frog centre structural representation of rotating-axial superhigh switch on railway,
Fig. 5 is an A-A sectional view among Fig. 4,
Fig. 6 is a B-B sectional view among Fig. 4,
Fig. 7 is a C-C sectional view among Fig. 4,
Fig. 8 is the enlarged drawing of transition 3 among Fig. 7.
Among the figure: 1-2-frog centre, 3-transition taken turns along groove, 4-transmission control hinge bar, the capable baffle plate of 501-rut, 502-craspedodrome baffle plate, the capable caulking groove of 503-rut, 504-craspedodrome caulking groove, 6-slide plate, 7-stretch out handle, 8-rotating shaft, 9-sleeper, 10-direct movement rail, 11-rut movement rail, 12-superelevation, 13-set bolt, 14 tongues, 1401-direct movement tongue rail, 1402-direct movement tongue rail afterbody; 1403-rut movement tongue rail, 1404-rut movement tongue rail afterbody, 15-craspedodrome rail level, 16-rut movement rail face, 17-frog rail.
The specific embodiment
The common railway track switch of using as shown in Figure 1 now: the intersection at direct movement rail 10 and rut movement rail 11 is a frog centre 2, frog centre 2 is equipped with tongue 14, tongue 14 is made up of with rut movement tongue rail 1403 direct movement tongue rail 1401 that be arranged in parallel, direct movement rail 10 constitutes railway frog point 17 with intersecting of rut movement rail 11, frog centre 2 exists wheel along groove 1, wheel along groove 1 make wheel by the time " jumping car " phenomenon arranged.Wheel has no idea to be provided with superelevation along the existence of groove 1.Existing Japanese movable head track switch is as shown in Figure 2: its frog centre 2 is the frog centre 2 of movable head track switch, and frog centre 2 places are also because the rail of the shared frog rail 17 of two-way driving point and superelevation can't be set only is used for present speed rail.
A kind of rotating-axial superhigh switch on railway of the present invention is as shown in Figure 3 and Figure 4: it comprises direct movement rail 10, rut movement rail 11, the tongue 14 that direct movement tongue rail 1401 and rut movement tongue rail 1403 are formed, frog centre 2, frog rail 17 is characterized in that: frog centre 2 is made of transition 3, slide plate 6; Set bolt 13 fixedly is loaded on slide plate 6 above the sleeper 9, referring to Fig. 5 and Fig. 6: be provided with axial trough with the most advanced and sophisticated corresponding position of frog rail 17 on the slide plate 6; One end of transition 3 is provided with down inserting type rotating shaft 8, this rotating shaft 8 is rotatably connected with axial trough, the other end of transition 3 is free ends, when train need pass through direct movement rail 10, handles transmission control device by the control centre free end of transition 3 is docked with direct movement tongue rail afterbody 1402; In like manner, when train need pass through rut movement rail 11, handle transmission control device by the control centre free end of transition 3 is docked with rut movement tongue rail afterbody 1404.Above-mentioned two kinds of butt joints all need to go through transition and 3 slide synchronously with tongue 14.Fig. 4 is transition 3 states that are communicated with direct movement rail 10, and the about 15cm of the free end points of the distance from bottom place of transition 3 is provided with stretches out handle 7, and it is hinged with transmission control hinge bar 4 to stretch out handle 7.Transmission control hinge bar 4 is used for being connected with the common point tongue transmission control device of prior art.Referring to Fig. 7 and Fig. 8: 3 the driving rail level of will going through transition is designed to two driving rail levels straggly, and one is craspedodrome rail level 15, and another is a rut movement rail face 16.Referring to Fig. 6:, difference in height between craspedodrome rail level 15 and the rut movement rail face 16 constitutes superelevation 12, so just the outer rail of rut movement rail 11 can be arranged to exceed one section progressive, superrelation on curve than interior rail, the afterbody (rotating shaft position) of the rut movement rail face 16 of transition 3 connects with frog rail is suitable, and its head (free end) and rut movement tongue rail 1403 are along connecing (not shown)s.
As of the present invention further perfect, referring to Fig. 7: in the left and right sides of slide plate 6, with transition 3 corresponding positions be respectively arranged with the capable baffle plate 501 of rut and craspedodrome baffle plate 502, two baffle plates 501,502 inboards be respectively equipped with and go through transition the capable caulking groove 503 of the corresponding rut of 3 left side shapes and with the 3 right side shapes of the going through transition caulking groove 504 of keeping straight on accordingly.Like this, when the free end of transition 3 docks with rut movement tongue rail afterbody 1404, as shown in phantom in Figure 7, the capable caulking groove 503 of the left side of transition 3 and rut fastens, when the free end of transition 3 docks with direct movement tongue rail afterbody 1402, transition 3 right side and craspedodrome caulking groove 504 fastenings, capable baffle plate 501 of rut and craspedodrome baffle plate 502 3 provide enough lateral support when the train operation for going through transition.