CN204849491U - Eliminate device of not enough displacement of switch blade - Google Patents

Abstract

The utility model provides an eliminate device of not enough displacement of switch blade, it sets up at between first switch blade and second switch blade, and length direction's both ends connect first switch blade and second switch blade respectively, at switch blade length direction, first tie point that the device is connected with first switch blade is located between the goat tie point A that keeps away from the first point of switch and a first switch blade stiff end, and the second tie point of being connected with the second switch blade is with the mode setting the same with first tie point, it adjusts screw thread subassembly and slip subassembly that the assembly includes end -to -end connection including adjusting the assembly, still includes the integrative sleeve of screw thread slip, and screw thread subassembly and telescopic thread end are used for applying the power of first stock rail of orientation and second stock rail to first tie point and second tie point respectively jointly, and slip subassembly and telescopic slip end are used for jointly the transfer switch accommodation process of two switch blades of device adaptation. Switch blade's not enough displacement can be eliminated to the device, makes the train turn to smooth -going, safety.

Description

A kind of device eliminating tongue Scant displacement

Technical field

The utility model relates to field of track traffic, is specifically related to a kind of device eliminating tongue Scant displacement.

Background technology

At present, last towing point (the goat tie point 013 and 023 as in Fig. 1) of China railways point tongue must be longer to fixed end (as 012 in Fig. 1 and 022) length common design, tongue supporting is with it pulled equipment and is usually adopted transfer device, and namely in track switch transfer process, tongue is action respectively.This track switch is being pulled in process, and scold with a certain distance from tongue (the first tongue 01 as in Fig. 1) after the motion of closely connected position, closed switch rail starts to put motion to scolding to off normal again.Due to tongue pull process need overcome tongue self rigidity and and be the frictional force between its slide plate provided support, cause tongue pull not in place and have certain distance with design attitude, this distance is tongue Scant displacement.Tongue Scant displacement is paired appearance generally, because the stock rail of both sides there being top iron stop that tongue moves to stock rail, therefore the phenomenon that there will not be displacement excessive.Tongue displacement deficiency makes track switch ride comfort poor, will affect ride comfort and traffic safety time serious.

Refer to Fig. 1 and Fig. 2, Fig. 1 is the track switch under normal condition, and Fig. 2 is that tongue is subjected to displacement not enough track switch, is embodied as the first tongue 01 in Fig. 2 and the second tongue 02 occurs in pairs towards the projection of offside tongue.

In the prior art, the angle that the solution of tongue displacement deficiency mainly pulls the frictional force process from reduction tongue is considered.As related to a kind of carriage for turnout switch in Chinese utility model patent 201310090064.0, comprising: bed piece, comprising the spring of the rail limb withholding stock rail and withholding platen, and pilot hole; Slide mechanism, comprise can in pilot hole sliding guide piece along its length, and the sliding stand be fixedly connected with guide.Sliding stand can slide with guide, and the tongue that sliding stand is supported also can slide with it and slide.The direction of the slip of tongue be exactly it near or away from the direction of stock rail.Due at guide be provided with the first and second antifriction sheets between sliding stand and the contact surface of backing plate, thus reduce the frictional resistance of motion, achieve tongue near or away from reducing friction resistance during stock rail and Scant displacement, ensure that the safety of driving and the comfortableness of passenger.

But the method maintenance work amount is large, implementation result is not obvious, and easily has a rebound.Therefore, this area needs a kind of brand-new method of design or device to solve the problem of tongue displacement deficiency.

Utility model content

For overcoming the problem of prior art point tongue displacement deficiency, the utility model provides a kind of device eliminating tongue Scant displacement.

What the utility model object was to provide a kind of structure simple, easy to operate can eliminate tongue Scant displacement, can ensure that again tongue transfer pulls the device carried out smoothly.

The device of described elimination tongue Scant displacement, described device is arranged between the first tongue and the second tongue, the one end in described device length direction is connected on the first tongue, the other end is connected on the second tongue, on length of switch rail direction, the first tie point that described device is connected with the first tongue is farthest away between the goat tie point A of first point of switch and the first tongue fixed end, the second tie point that described device is connected with the second tongue is farthest away between the goat tie point B of second point of switch and the second tongue fixed end, described device comprises adjustment assembly, described adjustment assembly is included in the threaded components and slide assemblies that on device length direction, head and the tail connect, also comprise screw thread slip one sleeve, the end of thread of described threaded components and sleeve is jointly for applying the power respectively towards the first stock rail and the second stock rail to described first tie point and the second tie point, the sliding end of described slide assemblies and sleeve adapts to the transfer switch adjustment process of two tongues jointly for described device.

According to a preferred embodiment of the present utility model, on the length direction of tongue, described first tie point to be positioned between goat tie point A and the first tongue fixed end the scope of before and after center 30 centimetres, and described second tie point to be positioned between goat tie point B and the second tongue fixed end the scope of before and after center 30 centimetres.

According to a preferred embodiment of the present utility model, described threaded components comprises threaded rod, two locknuts and locked spacer, establish screw thread in one end of described sleeve and with described shaft, between the locknut that described locked spacer is located at and the end of thread of described sleeve is contiguous and described sleeve; Unscrew two described locknuts, rotate described sleeve again, distance between the first tie point and the second tie point is increased, thus eliminate tongue Scant displacement, when Scant displacement on two tip of a root rails is all eliminated, screw two described locknuts, pull the described locked spacer of button and make described device for stably preventing tongue displacement not enough.

According to a preferred embodiment of the present utility model, described slide assemblies comprises sliding bar, step, sliding shoe and end plate, described sliding shoe contacts with the sliding end inwall radial direction of sleeve, and can slide along described inwall, described sleeve one end is fixedly connected with described end plate, and with through hole on described end plate, described sliding bar runs through described through hole, described sliding bar one end is fixedly connected with described sliding shoe, and the other end connects described step; Described sliding shoe slides axially in the sliding end of sleeve, and make described sliding shoe axially-movable to end plate described during one end near described sliding shoe, described sliding shoe axially-movable is close to step to end plate described during the other end.

According to a preferred embodiment of the present utility model, described slide assemblies also comprises the air slot be located on described sliding shoe periphery.

According to a preferred embodiment of the present utility model, described slide assemblies comprises the sliding bar of the truncated cone-shaped of the sliding end inside being positioned at sleeve, and the sliding end inwall of described sleeve is also in truncated cone-shaped.

According to a preferred embodiment of the present utility model, described device also comprises the insulation system making two tip of a root rails insulation, and described insulation system is arranged at and regulates between assembly and the first tongue and/or described insulation system is arranged at and regulates between assembly and the second tongue.

According to a preferred embodiment of the present utility model, described insulation system comprises insulation channel plate, insulation sleeve and felt pad, described device also comprises bearing, and bearing is connected with bolt with tongue, described insulation channel plate is located at the gap of described bearing and tongue, described insulation sleeve is sheathed on outside bolt, and described felt pad is located at the nut of fixing described bearing and the gap of described bearing.

According to a preferred embodiment of the present utility model, the length of described sliding bar is not less than 5 centimetres.

According to a preferred embodiment of the present utility model, described device also comprises the oscillating bearing and axle that are connected with threaded rod and sliding bar.

The technical scheme that the utility model provides has following beneficial effect;

1, the corresponding supporting switch method of device of the present utility model is transfer turn-out track mode, and thus, what overcome that interlock switch brings pulls the larger problem of resistance, and the device also namely in the utility model can ensure that tongue transfer is pulled to carry out smoothly.

2, utilize described threaded components and described slide assemblies to coordinate the spacing of adjustment two tongue, the Scant displacement of tongue can be eliminated smoothly, make turnout linear meet driving requirement.

Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing described below is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:

Fig. 1 is the top view of track switch;

Fig. 2 is the schematic diagram of the not enough state of tongue displacement;

Fig. 3 is tongue transfer block diagram;

Fig. 4 is the structural representation of the device of the elimination tongue Scant displacement that the utility model provides;

Fig. 5 is the front view of the device eliminating tongue Scant displacement in Fig. 4;

Fig. 6 is the structural representation of threaded rod;

Fig. 7 is the sectional view of sleeve;

Fig. 8 is the structural representation of sliding bar;

Fig. 9 is the structural representation of the device of the elimination tongue Scant displacement comprising a kind of preferred insulation system;

Figure 10 is the front view of the device eliminating tongue Scant displacement in Fig. 9;

Figure 11 is the front view of the device of the elimination tongue Scant displacement comprising preferred sliding bar;

In figure: 1, regulate assembly, 11, threaded components, 111, threaded rod, 112, locknut, 113, locked spacer, 12, slide assemblies, 121, sliding bar, 122, step, 123, sliding shoe, 124, end plate, 125, air slot, 13, sleeve, 2, axle, 3, oscillating bearing, 4, cushion pad, 5, bearing, 6, insulation system, 61, insulation sleeve, 62, insulation channel plate, 63, felt pad, 7, fork arm, 8, insulating slab, the 91, first tie point, the 92, second tie point;

01, the first tongue, 011, first point of switch, 012, the first tongue fixed end, 013, goat tie point A, the 02, second tongue, 021, second point of switch, 022, the second tongue fixed end, 023, goat tie point B, the 03, first stock rail, 04, the second stock rail, 05, goat.

Detailed description of the invention

Below in conjunction with accompanying drawing of the present utility model, carry out clear, complete description to the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.

Refer to Fig. 1 and Fig. 2, the device of described elimination tongue Scant displacement, described device is arranged between the first tongue 01 and the second tongue 02, the one end in described device length direction is connected on the first tongue 01, the other end is connected on the second tongue 02, on length of switch rail direction, the first tie point 91 that described device is connected with the first tongue 01 is farthest away between the goat tie point A013 of first point of switch 011 and the first tongue fixed end 012, the second tie point 92 that described device is connected with the second tongue 02 is farthest away between the goat tie point B023 of second point of switch 021 and the second tongue fixed end 022, described device comprises adjustment assembly 1, described adjustment assembly 1 is included in the threaded components 11 and slide assemblies 12 that on device length direction, head and the tail connect, also comprise screw thread slip one sleeve 13, the end of thread of described threaded components 12 and sleeve 13 is jointly for applying the power respectively towards the first stock rail 03 and the second stock rail 04 to described first tie point 91 and the second tie point 92, the sliding end of described slide assemblies 12 and sleeve 13 adapts to the transfer switch adjustment process of two tongues jointly for described device.

Please continue to refer to Fig. 1 and Fig. 2, preferably, on the length direction of tongue, described first tie point 91 to be positioned between goat tie point A013 and the first tongue fixed end 012 scope of before and after center 30 centimetres, described second tie point 92 to be positioned between goat tie point B023 and the second tongue fixed end 022 scope of before and after center 30 centimetres, more easily eliminates to make tongue Scant displacement.

Refer to Fig. 4 ~ Fig. 7, preferably, described threaded components 11 comprises threaded rod 111, two locknuts 112 and locked spacer 113, establish screw thread in one end of described sleeve 13 and coordinate with described threaded rod 111, between the locknut 112 that described locked spacer 113 is located at and the end of thread of described sleeve 13 is contiguous and described sleeve 13; Unscrew two described locknuts 112, rotate described sleeve 13 again, distance between the first tie point 91 and the second tie point 92 is increased, thus eliminate tongue Scant displacement, when Scant displacement on two tip of a root rails is all eliminated, screw two described locknuts 112, pull the described locked spacer 113 of button and make described device for stably preventing tongue displacement not enough.

Refer to Fig. 4, Fig. 5, Fig. 7 and Fig. 8, preferably, described slide assemblies 12 comprises sliding bar 121, step 122, sliding shoe 123 and end plate 124, described sliding shoe 123 contacts with the sliding end inwall radial direction of sleeve 13, and can slide along described inwall, and described sleeve 13 one end is fixedly connected with described end plate 124, and with through hole on described end plate 124, described sliding bar 121 runs through described through hole, and described sliding bar 121 one end is fixedly connected with described sliding shoe 123, and the other end connects described step 122; Described sliding shoe 123 slides axially in the sliding end of sleeve 13, and make the axially-movable of described sliding shoe 123 to end plate 124 described during one end near described sliding shoe 123, the axially-movable of described sliding shoe 123 is close to step 122 to end plate 124 described during the other end.

The detailed process eliminating Scant displacement is as follows:

Refer to Fig. 1 and Fig. 2, in Fig. 1, the first tongue 01 is bent tongue, and the second tongue 02 is straight tongue, and the first stock rail 03 is straight stock rail, and the second stock rail 04 is bent stock rail.Two tongues are from close second stock rail 04 to the original state near the first stock rail 03 movement in Fig. 1.Moving process is specially the first tongue 01 and becomes close-fitting state from scolding from state, and the second tongue 02 is become from close-fitting state scolds from state, and the first tongue fixed end 012 described in whole process and described second tongue fixed end 022 maintain static.Please continue to refer to Fig. 3, in this figure, content is the concrete steps of tongue transfer.As depicted in figs. 1 and 2, three goats 05 arranged side by side draw corresponding tongue simultaneously, and this to sentence in Fig. 1 near the point of switch goat 05 is example.Before tongue starts transfer, described second tongue 02 is in close-fitting state, and described first tongue 01 is in scolds from state, as shown in Fig. 3 it (a); Under the drive of described goat 05, described first tongue 01 is opened journey and is reduced gradually, and described second tongue 02 is still in close-fitting state, as shown in Fig. 3 it (b); When described first tongue 01 open journey be reduced to a certain degree time, described second tongue 02 starts to open, as shown in Fig. 3 it (c); Two tongues move to the direction of the first stock rail 03, until described first tongue 01 is in close-fitting state, as shown in Fig. 3 it (d) simultaneously; Described second tongue 02 continues to open, until arrive design attitude, as shown in Fig. 3 it (e); Now stop motion, the transfer process of two tongues terminates.When needing again to pull track switch, first pull in Fig. 3 it (e) described second tongue 02 being in and having scolded from state, repeat above process, switch process can be realized smoothly.

Before above transfer process, as shown in Figure 1, described second tongue 02 is in close-fitting state, the distance of the second tie point 92 on it from the first stock rail 03 is detected, if inconsistent with designed distance, namely displacement is not enough, is the state of the second tongue 02 in Fig. 2, then needs to use device described in the utility model to regulate this displacement deficiency to make described second tongue 02 return to state as shown in Figure 1.Because the closed switch rail in Fig. 1 and Fig. 2 is the second tongue 02, and closed switch rail and the stock rail away from it are the tracks next having train to pass through, namely the second tongue 02 and the first stock rail 03 in Fig. 1 and Fig. 2, if the projection (displacement is not enough) on the second tongue 02 is not eliminated, then affect the current of train possibly, the ride comfort of train passage is deteriorated, even derails.Now using crowbar to prize the second tongue 02 gently makes the top iron on itself and described second stock rail 04 closely connected.If can prize, then illustrate that this projection is elastic deformation, can adjust, if cannot prize, then illustrate that this projection is plastic deformation, not in the adjustable range that the utility model relates to.As described in the background art, because the projection generally paired appearance of described first tongue 01 and described second tongue 02, now be in the described step 122 of the device of the elimination tongue Scant displacement between two projections and described end plate 124 to be in and to be close to state, unscrew described locknut 112, rotate the end of thread of described sleeve 13, distance between two tongues is increased, then the projection of described second tongue 02 slowly can disappear along with the rotation of the end of thread of described sleeve 13, when boss presses close to the top iron on described second stock rail 04, detect the distance of former boss from described first stock rail 03, if reach requirement, then pull track switch to opposite side, if do not meet testing requirement, then continue adjustment, until after meeting the demands, pull track switch to opposite side, arriving scolding after described second tongue 02 transfer switch offs normal when putting, and the displacement that at this time should adjust on closed switch rail i.e. the first tongue 01 is not enough.Concrete, whether the distance first detected between described first tie point 91 and the second stock rail 04 has met designing requirement (because when the displacement on adjustment second tongue 02 is not enough, the displacement deficiency on the first tongue 01 also can obtain elimination to a certain degree simultaneously), if do not meet, then continue the end of thread rotating described sleeve 13, distance between two tongues is increased, then the projection of described first tongue 01 slowly can disappear along with the rotation of the end of thread of described sleeve 13, when boss presses close to the top iron on described first stock rail 03, start to detect the distance of former boss from described second stock rail 04, if reach requirement, then tighten locked spacer 113 described in described locknut 112 and bending and carry out locking anti-rotation, if do not meet testing requirement, then continue adjustment, until meet the demands, displacement deficiency on second tongue 02 described in this process is eliminated in previous step.In the utility model, because have top iron between described first tongue 01 and described first stock rail 03, and have top iron between described second tongue 02 and the second stock rail 04, thus there will not be by displacement deficiency be reversed to the excessive situation of displacement.So far, namely completing the elimination of two tongue Scant displacements, without the need to regulating the end of thread of described sleeve 13 again during next switch, and continuing to play a role in described slide assemblies 12 track transfer switch process afterwards, the position between two tongues so can be made accurate, all do not affect train passage.

Before installing the device of elimination tongue Scant displacement that the utility model provides, first according to the position of the maximum Scant displacement of field measurement data determination tongue, marking is also holed on the tongue web of the rail, guarantees that both sides tongue is holed alignment.Secondly, adjust the end of thread of two described locknuts 112 and described sleeve 13, make in the end of thread of sleeve 13 described in the complete precession of described threaded rod 111, the adjustable distance of described threaded rod 111 is not less than maximum Scant displacement.Again, until side tongue be in scold from state time, first insulation system and fixing iron are worked good, then anti-turn bolt are installed and lock.According to method above, holder and the insulation system of other side tongue is installed.Finally, utilize crowbar to stir tongue, temporarily eliminate Scant displacement, by rotating the end of thread of described sleeve 13, adjusting the spacing of itself and described sliding bar 121, making both be close to.In order to prevent the end of thread of described sleeve 13 from loosening, screw locknut 112 described in two, subsequently locked spacer 113 anti-rotation described in bending.

Refer to Fig. 5 and Fig. 8, preferably, described slide assemblies 12 also comprises the air slot 125 be located on described sliding shoe 123 periphery, to balance the air pressure of described sliding shoe about 123 air cavity, makes the slip of described sliding shoe 123 more smooth and easy.

Refer to Figure 10 and Figure 11, preferably, described slide assemblies 12 comprises the sliding bar 121 of the truncated cone-shaped of the sliding end inside being positioned at sleeve 13, and the sliding end inwall of described sleeve 13 is also in truncated cone-shaped.

Refer to Fig. 9 ~ Figure 11, preferably, described device also comprises the insulation system 6 making two tip of a root rail insulation, described insulation system 6 is arranged at and regulates between assembly 1 and the first tongue 01 and/or described insulation system 6 is arranged at and regulates between assembly (1) and the second tongue 02, and described first tongue 01 and the second tongue 02 are insulated well.

Refer to Fig. 5, preferably, described insulation system 6 comprises insulation channel plate 62, insulation sleeve 61 and felt pad 63, described device also comprises bearing 5, and bearing 5 is connected with bolt with tongue, described insulation channel plate 62 is located at the gap of described bearing 5 and tongue, and described insulation sleeve 61 is sheathed on outside bolt, described felt pad 63 is located at the nut of fixing described bearing 5 and the gap of described bearing 5, and described first tongue 01 and the second tongue 02 are insulated well.

Refer to Fig. 5, preferably, the length of described sliding bar 121 is not less than 5 centimetres, to guarantee that described sliding bar 121 coordinates the transfer process of described first tongue 01 and described second tongue 02 well.

Refer to Fig. 4 and Fig. 5, preferably, described device also comprises the oscillating bearing 3 and axle 2 that are connected with threaded rod 111 and sliding bar 121, makes described device have the function swung in upper and lower, left and right certain limit.Therefore, oscillation adjustment that is upper and lower, left and right is realized in the transfer transfer processes such as device described in the utility model can be raised at tongue, angle change, anti-locking apparatus generation jam.

In the utility model, described holder can be changed according to tongue rail type, and such as holder is the structure such as L-type, Z-type, provides the holder of two kinds of difformity structures in Figure 10 and Figure 11.And Figure 10 and Figure 11 shows device described in the utility model is connected on the flange of rail of tongue or the web of the rail and all can.

First utilize crowbar to stir tongue, eliminate Scant displacement, then by turnbarrel, adjust the spacing between itself and described step 123, make both be close to, two tongue spacings after making the length of device and eliminating Scant displacement adapt to.That is, in the utility model, stir tongue with crowbar first can test the displacement deficiency that tongue produces and belong to elastic deformation or moulding deformation, first can also temporarily eliminate elastically-deformable tongue Scant displacement with crowbar, more stably eliminate tongue Scant displacement by the Telescopic Fixed of device.

In a kind of detailed description of the invention of the present utility model, the Scant displacement on every tip of a root rail is such as 1 ~ 9mm, and the length of described threaded rod is not less than this value.In addition, in order to adapt to the transfer process of two tongues, the general not little 5cm of adjustable length of described sliding bar is such as 10cm.

Three described goats in the technical program are only signal, and in concrete switch process, the quantity of goat is the amount doesn't matter, determines because of concrete condition.

The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every utilize the utility model manual and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other is relevant, be all in like manner included in scope of patent protection of the present utility model.

Claims (10)

1. eliminate the device of tongue Scant displacement for one kind, described device is arranged between the first tongue (01) and the second tongue (02), the one end in described device length direction is connected on the first tongue (01), and the other end is connected on the second tongue (02); On length of switch rail direction, the first tie point (91) that described device is connected with the first tongue (01) is positioned at farthest away between the goat tie point A (013) of first point of switch (011) and the first tongue fixed end (012), and the second tie point (92) that described device is connected with the second tongue (02) is positioned at farthest away between the goat tie point B (023) of second point of switch (021) and the second tongue fixed end (022); Described device comprises adjustment assembly (1), described adjustment assembly (1) is included in the threaded components (11) and slide assemblies (12) that on device length direction, head and the tail connect, and also comprises screw thread slip one sleeve (13); The end of thread of described threaded components (11) and sleeve (13) is jointly for applying the power respectively towards the first stock rail (03) and the second stock rail (04) to described first tie point (91) and the second tie point (92), the sliding end of described slide assemblies (12) and sleeve (13) adapts to the transfer switch adjustment process of two tongues jointly for described device.

2. device according to claim 1, it is characterized in that, on the length direction of tongue, described first tie point (91) to be positioned between goat tie point A (013) and the first tongue fixed end (012) scope of before and after center 30 centimetres, and described second tie point (92) to be positioned between goat tie point B (023) and the second tongue fixed end (022) scope of before and after center 30 centimetres.

3. device according to claim 1 and 2, it is characterized in that, described threaded components (11) comprises threaded rod (111), two locknuts (112) and locked spacer (113), establish screw thread in one end of described sleeve (13) and coordinate with described threaded rod (111), between the locknut (112) that described locked spacer (113) is located at and the end of thread of described sleeve (13) is contiguous and described sleeve (13); Unscrew two described locknuts (112), rotate described sleeve (13) again, distance between the first tie point (91) and the second tie point (92) is increased, thus eliminate tongue Scant displacement, when Scant displacement on two tip of a root rails is all eliminated, screw two described locknuts (112), pull the described locked spacer of button (113) and make described device for stably preventing tongue displacement not enough.

4. device according to claim 1 and 2, it is characterized in that, described slide assemblies (12) comprises sliding bar (121), step (122), sliding shoe (123) and end plate (124), described sliding shoe (123) contacts with the sliding end inwall radial direction of sleeve (13), and can slide along described inwall, described sleeve (13) one end is fixedly connected with described end plate (124), and with through hole on described end plate (124), described sliding bar (121) runs through described through hole, described sliding bar (121) one end is fixedly connected with described sliding shoe (123), the other end connects described step (122), described sliding shoe (123) slides axially in the sliding end of sleeve (13), make described sliding shoe (123) axially-movable to end plate (124) described during one end near described sliding shoe (123), described sliding shoe (123) axially-movable is close to step (122) to end plate (124) described during the other end.

5. device according to claim 4, is characterized in that, described slide assemblies (12) also comprises the air slot (125) be located on described sliding shoe (123) periphery.

6. device according to claim 1 and 2, it is characterized in that, described slide assemblies (12) comprises the sliding bar (121) of the truncated cone-shaped of the sliding end inside being positioned at sleeve (13), and the sliding end inwall of described sleeve (13) is also in truncated cone-shaped.

7. device according to claim 1 and 2, it is characterized in that, described device also comprises the insulation system (6) making two tip of a root rails insulation, and described insulation system (6) is arranged at and regulates between assembly (1) and the first tongue (01) and/or described insulation system (6) is arranged at and regulates between assembly (1) and the second tongue (02).

8. device according to claim 7, it is characterized in that, described insulation system (6) comprises insulation channel plate (62), insulation sleeve (61) and felt pad (63), described device also comprises bearing (5), and bearing (5) is connected with bolt with tongue, described insulation channel plate (62) is located at the gap of described bearing (5) and tongue, described insulation sleeve (61) is sheathed on outside bolt, and described felt pad (63) is located at the nut of fixing described bearing (5) and the gap of described bearing (5).

9. device according to claim 1 and 2, is characterized in that, the length of described sliding bar (121) is not less than 5 centimetres.

10. device according to claim 1 and 2, is characterized in that, described device also comprises the oscillating bearing (3) and axle (2) that are connected with threaded rod (111) and sliding bar (121).