NL2008644C2 - TONGROL DEVICE AND CHANGE PROVIDED FOR THEREOF. - Google Patents

Description

TONGROL DEVICE AND CHANGE PROVIDED FOR THEREOF

The invention relates to a barrel roller device, as well as to a switch provided therewith.

5 Rail-bound traffic uses turnouts to guide or divert a selected rail route from a rail-bound vehicle, such as a train or tram. It is known to use sliding chairs with a ton roller for such points. The tongue rail rests in a working position, which rests against the stop rail, on the sliding chair. In a rest position, wherein the tongue rail is in a position remote from the stop rail, the tongue rail is supported by a spindle roller. A major advantage of the use of sliding chairs with a ton roller is that relatively small adjustment forces of the change positioners are required without the sliding chairs having to be lubricated.

Tongroline devices must be adjusted after they have been mounted on a switch. It is important here that the adjustment takes place in a correct manner in order to guarantee a reliable operation of the switch. There is therefore a need for a simple and correctly adjustable barrel roller device.

Periodic switch maintenance involves rearranging the ballast, so that the switch is again stably and flatly supported by the ballast bed. When this ballast is rearranged, ton grilling devices arranged between sleepers can be damaged.

When a barrel roller device for maintenance of the switch has been temporarily removed therefrom, the adjustment of the barrel roller arrangement on the switch is lost.

The process of adjusting the ton roller device will then have to be carried out again. 2 skilled personnel with special training on the correct adjustment of a ton roller device are required to prevent assembly errors.

An object of the present invention is to provide a ton roller device, wherein the disadvantages mentioned do not occur, or at least to a lesser extent.

Said object has been achieved with the pin roller device according to the invention, comprising: - an intermediate bracket ends which can be fitted between two sleepers of an interchangeable bracket, comprising intermediate bracket ends which can be arranged on the transverse beams, as well as an intermediate bracket middle part situated between the intermediate bracket ends; and - a roll holder arranged on top of the intermediate bracket middle part 15 with a rotatably mounted ton roller; and - wherein the axis of rotation of the barrel roller rotatably arranged in the roll holder is substantially parallel to the longitudinal direction of the intermediate bracket and is located directly above the plane of the intermediate bracket middle part.

The axis of rotation of the barrel roller rotatably arranged in the roll holder is substantially parallel to the longitudinal direction of the intermediate bracket, and therefore also substantially parallel to a turnout bar.

Such a spindle roller device can be mounted on sleepers of a switch by simple means and removable therefrom, so that the spindle roller device can easily be temporarily removed for the purpose of rearranging the ballast supporting a switch.

The risk of damage to the tongroll device due to this rearrangement is then prevented.

Moreover, the barrel roller device according to the invention retains its adjustment relative to the switch 3 when it is temporarily removed from the switch for maintenance work. The intermediate bracket with roll holder mounted thereon can be temporarily removed as a whole from the sleepers, whereafter the change maintenance can take place. In the design according to the invention, the adjustment of the ton roller device is therefore only necessary for its first use.

The barrel roller device can be assembled in a workshop, after which it only needs to be placed and adjusted on the construction site for a first use.

During an average lifespan of a ton roller device of at least 20 years, it will have to be removed a few times for the maintenance of a switch. Typically, point maintenance takes place every 5 to 6 years.

In addition, the reliability is higher than with the ton grilling devices currently used on the rail network. This increased reliability can be attributed in particular to the smaller number of individual components, as well as the relative simplicity thereof. With the exception of the roll holder, the other parts can be manufactured relatively easily. The most accurate operations are also concentrated on one component: the roll holder.

According to a preferred embodiment, the ton roller device comprises a single continuous intermediate bracket. This has the advantage that the pin roller device can be removed in one go from the sleepers of a switch, while the adjustment thereof is retained.

When a tongue rail is rolling on the barrel roller of the barrel roller device, the continuous intermediate bracket will spring in a few millimeters, and therefore the barrel rail will gradually roll on the barrel roller.

4

Peak loads are prevented by this springing in of the intermediate bracket.

According to a further preferred embodiment, the intermediate bracket spans a length of at least 370 mm.

Because the center distance between two consecutive sleepers in the Netherlands is approximately 600 - 610 mm (maximum of approximately 700 mm), and these sleepers have a width of approximately 200 - 250 mm, a minimum length of at least 370 mm is required for one-piece single continuous intermediate bracket spanning the distance between two consecutive sleepers. An intermediate bracket length of 370 mm is associated with a support surface of (370- (600-250)) / 2 = 10 mm at a center-to-center distance of 600 mm and a cross-beam width of 250 mm for both cross-beams.

According to a still further preferred embodiment, between the intermediate bracket ends and the intermediate bracket middle part, intermediate bracket transition parts are provided which provide such a distance between the intermediate bracket ends and the intermediate bracket middle part that the top side of a mounted barrel roll, which is rotatably mounted in the roll holder mounted on the intermediate bracket middle part extends to some distance above the intermediate bracket ends. As a result, the barrel roller is in a switch-mounted state at a height level where it lifts the tongue rail relative to the sliding chair when the tongue rail is in a rest position remote from the stop rail.

According to a still further preferred embodiment the ton roller device comprises adjusting means which are arranged to thereby adjust the position of the ton roller relative to the intermediate bracket middle part of the intermediate bracket. Correct adjustment is important to guarantee the safe operation of the switch.

5

According to a still further preferred embodiment, the roll holder comprises a roll holder bottom plate, and the adjusting means comprise at least one slot-shaped recess arranged in the roll holder bottom plate. Due to this slot-shaped recess, the roll holder is slidable relative to the intermediate bracket middle part of the intermediate bracket.

After having been shifted to a desired position, the connection between the intermediate bracket and the roll holder is fixed with the aid of fastening means, such as a bolt connection.

According to a still further preferred embodiment, the roll holder comprises at least two roll holder flange parts extending transversely from the roll holder bottom plate with slot-shaped recesses arranged therein; - wherein a height-adjusting part comprises a substantially U-shaped profile part with a rear wall and side walls provided with slot-shaped recesses, wherein the profile part is adapted to be displaceable relative to the roll holder such that the side walls of the profile part along the roll holder flange parts are slidable; - wherein an axis on which the spindle roller is mounted extends through the intersections of the slot-shaped recesses of the roll holder flange parts and the slot-shaped recesses of the profile part; and - wherein the slot-shaped recesses in the profile part are inclined with respect to the slot-shaped recesses arranged in the roll holder flange parts, so that the height of the spindle roller can be adjusted via a displacement of the profile part relative to the roll holder. Such a device provides an accurate adjustability which, moreover, is applied uniformly to both ends of the shaft on which the spindle roller is mounted.

According to a still further preferred embodiment, one or more height-adjusting parts can be arranged between the intermediate bracket middle part and the roll holder bottom plate. The height can be adjusted by fitting one or more height adjustment parts.

According to a still further preferred embodiment, the height-adjusting part comprises a substantially flat washer. Such washers can be available in different thicknesses. It is also conceivable that a slot extending to an edge is provided which makes it possible to slide the washer between them without complete disassembly being necessary.

According to a still further preferred embodiment, the height-adjusting part comprises a wedge-shaped support part. The height can be adjusted by shifting the wedge shape, whereby it is advantageous that individual washers are unnecessary.

In a first embodiment, the roll holder bottom plate has a chamfered shape cooperating with the wedge-shaped height-adjusting part, but alternatively it is conceivable that two cooperating chamfered height-adjusting parts are used.

Furthermore, the invention relates to a switch, comprising: - at least two sleepers; - a ton-roll device according to the invention arranged between two adjacent sleepers, wherein the intermediate bracket ends rest on two adjacent sleepers; and - fastening means for releasably securing the intermediate bracket ends to the sleepers therewith.

According to a preferred embodiment of the switch, the fixing means comprise a fixing bracket that can be releasably arranged on the crossbar.

In the following description, preferred embodiments of the present invention are further explained with reference to the drawing, in which: Figure 1 shows a top view of a switch with four ton grilling devices according to the invention;

Figure 2: an enlarged top view of a ton roller device shown in Figure 1;

Figure 3: an enlarged perspective view of the switch of Figure 1.

Figure 4: an enlarged perspective view of a ton roller device shown in Figure 3;

Figure 5: a perspective detailed view of height adjustment means of the roll holder of the ton roller device shown in Figure 4;

Figure 6: an exploded perspective view of the ton roller device shown in Figure 4;

Figure 7: a side view of a first state of the height adjustment of the embodiment shown in Figures 2-6;

Figure 8: a side view of a second state of the height adjustment of the embodiment shown in Figures 2-6;

Figure 9: a perspective view of a barrel roll device according to a second embodiment; and

Figure 10: a perspective view of a ton roller device according to a third embodiment.

8

The switch shown in Figure 1 comprises a stop rail 6 and a tongue rail 4, wherein the tongue rail 4 in the rest position shown in Figure 1 lies at some distance from the stop rail 6. In this rest position shown in Figure 1, the tongue track rod 4 is supported by a spindle roller 82 of a spindle roller device 1. Such spindle roller devices 1 are arranged at the locations shown in circles in Figure 1.

In the plan view of Figure 2, it is shown how such a spindle roller changing device 1 is arranged between two sleepers 10 of a switch. The tongue rail 4 is shown in dotted line in Figure 2 and is in a rest position, the tongue rail 4 being in a position 15 remote from the stop rail 6 and being supported by the barrel roller 82. In a working position in which the tongue rail 4 would abut against the stop rail 6, it would be carried by the sliding chair 8 of the spool roller device 1.

The spindle roller 82 is received in a roll holder 44 (Figure 2).

This roll holder 44 comprises a roll holder bottom plate 46 with slot-shaped recesses 50 therein. The roll holder 44 can be mounted on the intermediate bracket middle part 30 of the intermediate bracket 24 and with the aid of the slot-shaped recess 50 is the position of barrel roller 82 relative to the 25 intermediate bracket 24 adjustable.

The intermediate bracket 24 comprises intermediate bracket ends 26 which can be applied to the sleepers 10, as well as an intermediate bracket middle part 30 located between the intermediate bracket ends 26. The intermediate bracket ends 26 are releasably mounted on a crossbar 10 by means of a mounting bracket 12.

Between the intermediate bracket ends 26 and the intermediate bracket middle part 30 there are intermediate bracket transition parts 28 which ensure that the intermediate bracket middle part 30 is situated at such a distance below the intermediate bracket ends 26 that there is sufficient mounting height to accommodate a roll holder 44 with 5 ton roll 82 arranged therein. In a condition of the roll holder 44 mounted on the intermediate bracket middle part 30, the spindle roller 82 extends some distance above the intermediate bracket ends 26 so that they lift the tongue rail 4 from the sliding chair 8 when the tongue rail 4 is in the van the stop rail 6 is in a position of rest. The position of the spindle roller device between the sleepers protects the spindle roller device to some extent against weather influences such as snow, rainwater or other pollution.

The mounting brackets 12 comprise a strip part 14 with therein a receiving part 16 which is provided with cams 18 for receiving an intermediate bracket end 26 therebetween. On the strip part 14 of the mounting bracket 12 mounting lips 20 with bolt holes 22 arranged therein are provided (Figure 4).

In order to be able to adjust the pin roller 82 to a desired position relative to the intermediate bracket middle part 30 of the intermediate bracket 24, adjusting means are provided.

In a first preferred embodiment, which is shown in Figure 4, the adjusting means comprise a combination of a bolt 72, a first locking ring 74, a second locking ring 76 and an elastically deformable clamping ring 78 which rests against a roughened part 58 of a roll holder-30 flange part 48 of the roll holder 44 can be pressed. When the bolt head 72 is loosened and the locking rings 74, 76 and the clamping ring 78 become somewhat loose relative to each other, the shaft 80 with the rotatably mounted ton roller 82 can be adjusted in height in the manner that follows in the following. 7 and 8 will be explained in more detail below.

It is noted that the roll holder bottom plate 46 of the roll holder 44 also comprises a roughened part 56 near the slot-shaped recess 50. According to the combination of bolt 72, locking rings 74, 76 and clamping ring 78, a bolt 34, first and second locking rings 38, 40 and a clamping ring 42 are provided for thereby adjusting and fixing the horizontal position of the roll holder 44 relative to of the intermediate bracket 24. The bolt 34 thereby protrudes through the bore 32 in the intermediate bracket middle part 30 and engages a nut 36 on the underside thereof.

According to a first embodiment of the adjusting means, a height-adjusting part 64 is provided which consists of a U-shaped profile part 64 with a rear wall 66 and side walls 68 provided with slot-shaped recesses 70. These side walls 68 of the profile part 64 are slidable along the roll holder. flange parts 48 are provided. If desired, a cover strip 60 is provided on the top side of the roll holder-flange parts 48 to prevent a height displacement of the U-shaped profile part 64. The cover strips 60 then act as a stop edge for the top edge of the side walls 68 of the height-adjusting part 64.

The shaft 80 on which the spindle roller 82 is arranged extends through the opening where the slit-shaped recesses 54 of the roll holder flange parts 48 coincide with the slit-shaped recesses 70 of the side walls 68 of the profile part 64. Because the slit-shaped recesses 70 in the profile part 64 is inclined relative to the slot-shaped recesses 54 arranged in the roll holder-flange parts 48, the height of the barrel roller 82 is adjustable 11 via a displacement of the profile part 64 relative to the roll holder 44.

After the height adjustment of the barrel roller 82 has been adjusted as desired, this position is fixed by tightening the bolt 72 via the locking rings 74, 76 and the clamping ring 78. The spindle roller 82 is rotatably mounted over bearings 84 around the shaft 80 in the roll holder 44.

In figures 7 and 8 the height adjustment of the ton roller 82 is explained in more detail. The shaft 80 on which the spindle roller 82 is rotatably mounted protrudes through the coincident recess of the slot 54 in the roll holder-flange part 48 and the slot 70 in the side wall 68 of the height-adjusting part 64. Because the slit-shaped recess 70 in the profile part 64 is arranged obliquely with respect to the slot-shaped recess 54 located in the roll holder-flange part 48, the coincident opening between the two slot-shaped recesses 54, 70 shifts in height when the height adjustment part 64 moves sideways over the roll holder bottom plate 46 of the roll holder 44 is moved. In Figure 7, the shaft 80 is in a first state and in Figure 8, this shaft 80 is in a second state, raised relative to the first state shown in Figure 7. Because the shaft 80 is displaced in the height direction, the ton roller 82 arranged rotatably around the shaft 80 is also displaced in the height direction.

In Figs. 9 and 10 alternative embodiments are shown in which the height adjustment of the roll holder 44 relative to the intermediate bracket 24 is effected by arranging one or more height adjustment parts between the intermediate bracket bottom plate 46 and the intermediate bracket middle part 30. 164, 264. In the embodiment shown in Figure 9, these height adjustment parts 164 are flat 12 support plates, while the embodiment shown in Figure 10 has the height adjustment parts 264 in a wedge shape. The wedge-shaped height adjustment parts 264 cooperate with a wedge-shaped underside of the roll holder bottom plate 46 of the roll holder 44, or with a second wedge-shaped height adjustment part (not shown) which is between a flat roll holder bottom plate 46 and the one shown in Figure 10. wedge-shaped height adjustment member 264 shown.

In Figure 9 a slot-shaped recess 10 is provided, through which the shaft 80 fits and in which it is carried. A locking ring 92 clamped with nut 86 prevents the shaft 80 with barrel roller 82 from being able to move upwards out of the slot-shaped recess 154 in the mounted state.

In the alternative embodiment shown in Figure 10, the roller holder 80 is arranged in a slot-shaped recess 254, whereafter it can be secured by the securing recesses 90 with a locking pin (not shown).

The embodiments described above, although showing preferred embodiments of the invention, are only intended to illustrate the present invention and not to limit the description of the invention in any way. In particular, it is noted that a person skilled in the art can combine technical measures of the various embodiments, such as a wedge-shaped washer 264 combined with the slot-shaped recess 154 shown in Figure 9. The rights described are determined by the following claims in the scope 30 of which many modifications be conceivable.

Claims (10)

A spool roller device, comprising: - an intermediate bracket (24) which can be fitted between two sleepers (10) of a switch 5, comprising an intermediate bracket ends (26) that can be arranged on the transverse beams, as well as an intermediate bracket ends located between the intermediate bracket ends (26). middle part (30); - a roll holder (44) arranged on top of the intermediate bracket middle part 10 with a spindle roller (82) rotatably arranged therein; and - wherein the axis of rotation of the ton roller rotatably arranged in the roll holder is substantially parallel to the longitudinal direction of the intermediate bracket (24) and is located directly above the plane of the intermediate bracket middle part (30). A roller barrel device according to claim 1, comprising a single continuous intermediate bracket (24). The roller barrel device according to claim 1 or 2, wherein the intermediate bracket (24) spans a length of at least 370 mm. 1 Tongrol device according to one of the preceding claims, wherein between the intermediate bracket ends (26) and the intermediate bracket center section (30) intermediate bracket transition sections (28) are provided which are such a distance between the intermediate bracket ends (26) and the intermediate bracket center part (30) provide that the top of a mounted barrel roll rotatably mounted in the roll holder mounted on the intermediate bracket middle section extends some distance above the intermediate bracket ends. 5. Roller barrel device as claimed in any of the foregoing claims, comprising adjusting means which are adapted to thereby adjust the position of the barrel roller (82) relative to the intermediate bracket middle part (30) of the intermediate bracket (24). The roller barrel device according to claim 5, wherein the roll holder (44) comprises a roll holder bottom plate (46), and the adjusting means comprise at least one slit-shaped recess (50) arranged in the roll holder bottom plate 10 (46). The roller barrel device according to claim 6, wherein the roller holder (44) comprises at least two roller holder flange parts (48) extending transversely from the roller holder bottom plate (46) with slot-shaped recesses (54) arranged therein; - wherein a height-adjusting part (64) comprises a substantially U-shaped profile part (64) with a rear wall (66) and side walls 20 (68) provided with slot-shaped recesses (70), the profile part (64) being adapted to to be displaceable relative to the roll holder (44) that the side walls (68) of the profile part (64) are slidable along the roll holder flange parts (48); - wherein a shaft (80) on which the spindle roller (82) is mounted extends through the intersections of the slot-shaped recesses (54) of the roll holder flange parts (48) and the slot-shaped recesses (70) of the profile part (64); and - wherein the slot-shaped recesses (70) in the profile part (64) are inclined with respect to the slot-shaped recesses (54) arranged in the roll holder flange parts (48), so that the height of the spindle roller (82) can be adjusted via a displacement of the profile part (64) relative to the roll holder (44). 8. Roller barrel device according to one of the preceding claims, wherein one or more height adjustment parts (164, 264) can be arranged between the intermediate bracket middle part (30) and the roll holder bottom plate (46). 9. Ton-roll device according to claim 8, wherein the height-adjusting part comprises a substantially flat washer (164). 10. Barrel roller device according to claim 9, wherein the height adjustment part comprises a wedge-shaped support part (264). A switch, comprising: - at least two sleepers (10); - a barrel roll device arranged between two adjacent sleepers 20 according to any of claims 1-10, wherein the intermediate bracket ends (26) rest on two adjacent sleepers; and - fastening means for releasably securing the intermediate bracket ends to the sleepers therewith. Switch according to claim 11, wherein the fastening means comprise a fastening bracket (12) releasably arranged on the crossbar.