CN101331276A - Device for fastening a support for sensors, switching elements and the like to a rail - Google Patents

Abstract

A device for fastening a carrier (16) for sensors, switching elements and the like on a rail (1) consisting of a rail jaw with jaw jaws (3, 4) that can be fitted onto a rail foot from opposite sides and a device (5, 7, 10, 11, 12), one jaw (4) of the jaw jaws (3, 4) being arranged on the carrier side and the other jaw (3) being adjustable relative to the jaw (4) of the carrier side by means of at least one adjusting screw (2) that can be passed under the rail foot, the device (5, 7, 10, 11, 12) being provided for adjusting the distance of the carrier (16) from the region of action of the jaw jaws (4, 6) of the carrier side on the rail foot, at least the jaw portion (6) of the jaw jaws (4) of the carrier side being independent of the adjusting screw (6), in order to pre-adjust the rail jaw jaws to different rail foot widths, The self-adjusting and fixed connection to the support (16) itself or to the holder (5) on the support, and the jaw (4) or the jaw part (6) thereof on the support side are locked in a positive-locking manner by the engaging, for example, grooves or cross-sectionally serrated profiles (11, 12) of the jaw (6) and the adjacent surfaces of the support or holder (5) during each pre-adjustment.

Description

Devices for fixing brackets for sensors, switching elements and similar elements on rails

technical field

The invention relates to a device for fastening supports for sensors, switching elements and similar elements on a rail, consisting of rail jaws and means, said rail jaws having fittings that can be fitted to rail feet from opposite sides Claw jaws, one of the jaw jaws is arranged on the side of the bracket, and the other jaw jaw can be adjusted relative to the side of the bracket by means of at least one adjusting bolt that can pass under the rail foot. Adjustment of the claw jaws, the device is provided for adjusting the distance from the bracket to the area of action of the bracket-side jaw jaws on the rail foot.

Background technique

In most cases, sensors and similar elements are mounted vertically and laterally at a distance on the inside of the rail in the vicinity of the rail head, ie on the side of the head facing the other rail. In practice, usually only the outer jaw jaws are provided adjustable. Here, in the case of different widths of the rail foot, the problem arises that this width also determines the horizontal distance of the respective sensor or similar element to the rail head at the same time, wherein it needs to be additionally taken into account that the width of the rail head is both due to manufacturing Dimensions also change due to wear or regrinding of the rails.

A device of the type mentioned at the outset is known from US 2005 072 252 A1. In this respect, the rail jaws on the side of the bracket are fixed by means of adjusting bolts of corresponding length, and the bracket has two vertical elongated holes arranged at a distance, through which the fixed clamping bolts embedded in the rail jaws pass. hole embedded. In order to adjust the distance from the support to the area of engagement of the associated jaws on the rail foot, a backing plate is provided which is additionally fixed by means of the mentioned screws. This structure is therefore complex and requires a stock of a large number of backing plates of different thicknesses.

It is disclosed by US 3 941 838 A1 that two jaw jaws are fixed by assembled nuts by means of two adjusting bolts arranged at a distance. The adjusting bolt protrudes from the side of the bracket and is embedded in the horizontal long hole of the bracket. The distance from the bracket to the active area of the jaws on the side of the bracket is determined by nuts that can be screwed onto each of the two adjusting bolts before mounting the bracket, wherein the final fixation is achieved by fitting in the associated gap where the adjusting bolt passes through the bracket Finish with a nut on the protruding end. Here, although it is theoretically possible to adjust the distance from the bracket to the bite area of the corresponding claw jaws, the device is unreliable and cumbersome in operation, and the main disadvantage is that under the strong load of traffic on the rail, looseness will occur. Detachment and the resulting undesired position changes of the support and of the sensors arranged thereon.

A support for sensors or similar elements is disclosed by patent document DE 974 202 C, which has a groove distributed parallel to the longitudinal direction of the rail, for example, can have a triangular profiled portion, and a corresponding profiled counterpart is installed on the jaw jaw , so that when the bracket is tightened with the adjusting bolt, it is locked during any vertical and longitudinal adjustment through the mutually engaged groove special-shaped parts.

Contents of the invention

A device of the type mentioned at the outset is characterized in that, in order to preadjust the rail jaws to different rail foot widths, at least the jaw part of the jaw jaw on the support side is adjustable and fixed on its own, independent of the adjusting screw. The support itself or the holder on the support is connected, and the jaw jaws on the side of the support or their jaw parts pass through the adjoining jaws of the support or the holder in a form-fitting manner each time they are pre-adjusted. Interlocking, for example grooves or profiled portions of sawtooth shape in cross-section on the surfaces are locked.

The invention takes into account the fact that a simple clamping connection occurs during running due to the loads caused by orbital vibrations and impact-induced inertial forces which can be as high as several kilograms, which may cause undesired damage to the connection. location changes. It goes without saying that triangular or trapezoidal profiles are also conceivable, wherein the segments can be selected in such a way that adjustments can be made within the millimeter range if necessary. A major advantage of the embodiment according to the invention is also that said embodiment is suitable for all rail foot widths and in the case of the same rail foot width on longer track sections, it can be achieved in advance before installation on the rail foot A corresponding adjustment of its width speeds up the installation on the rail and thus shortens the blocking or securing time of the rail section required for this installation work.

Structurally, the preferred embodiment of the present embodiment is that the jaws on the bracket side have two jaw parts arranged on both sides of the intermediate holder, which are connected by clamping bolts passing through the holder and can be positioned relative to each other according to the elongated hole. Adjustment by clamping bolt or retainer. One clamping screw is sufficient here, and even in the event of a deformation of the rail foot, the two claw parts can be adjusted differently and thus achieve a precise mounting fit of the bracket.

According to a further development, the adjusting screw is fixed rigidly in the support or holder, depending on the structural design of the parts. The advantage of this is that, on this face of the jaws of the jaws, no additional nuts need to be manipulated for its fixation and when correspondingly pre-adjusted, only nuts and similar parts need to be screwed onto other mostly easily accessible jaws. claw surface.

Further details and advantages of the subject matter of the invention can be found in the following description of the drawings.

Description of drawings

The subject matter of the invention is illustrated by way of example in the drawings. in:

The front view of Fig. 1 shows the device according to the invention seen from the front, in its fixed state on the rail;

Figure 2 shows the associated side view under the rail shown in section;

Figure 3 shows a sectional view along line III-III of Figure 1; and

FIG. 4 shows a top view of FIG. 1 .

Detailed ways

A rail claw can be installed on the rail 1, and the rail claw has two claw jaws 3, 4 that can be adjusted relative to each other by adjusting bolts 2, and clamp the rail foot from opposite sides. In this respect, the jaw jaw 3 is formed in one piece, while the jaw jaw 4 consists of three interconnected molded parts, namely a central holder 5 and two jaw parts 6 which are pressed against the holder from opposite sides. 5 and is fixed by the threaded pin 7 installed in the holder 5 and the self-locking nut 8 connected in the middle of the spring leaf 9 . As an alternative to threaded pins and self-locking nuts, bolts can also be used. The jaw part 6 has an elongated hole 10 for passing through the threaded pin 7 and has, on its face facing the holder 5 , a profile 11 with a saw-tooth shape in cross-section, with a corresponding profile 12 on the holder. When the bolt is loosened, the jaw portion 6 relative to the retainer 5 can be adjusted relative to the retainer 5 at the step length corresponding to the subsections of the special-shaped parts 11, 12, so as to ensure matching with the width of the rail foot. It should also be pointed out that, in the embodiment described, the adjusting screw 2 is fastened in the holder 5 , for example by pressing or welding, so that its end does not protrude or does not have to be fixed by an additional nut or the like. The claw jaws 13 which can be adjusted on the adjusting bolt 2 can be pressed by the tension spring 13 and the self-locking nut 14 to clamp the rail foot.

For fastening the housing 15 for the sensor or switching element on the rail jaws, a carrier plate 16 is used, in which the ends of the retaining bolts 17 are pressed or welded, wherein the retaining bolts pass from the plate side towards the rail. Installed and relocked nuts 18 connect the housing 15 to the plate 16. The fastening point of the bolt 17 on the plate 16 is marked with 17a.

The supporting plate 16 and the holder 5 also have serrated profiled portions 19, 20 on their mutually opposite faces, and the supporting plate 16 has an elongated hole 21 through which a retaining bolt 22 is embedded in the holder 5. The holder 5 is clamped in the screw hole by the nut 23 and the spring leaf 24 , wherein the supporting plate 16 can also be adjusted vertically according to the step length of the special-shaped parts 19 and 20 . Nut 23 is also a self-locking nut.

In this exemplary embodiment, the carrier plate 16 has in the upper region a lower rounded portion 25 which flushly accommodates a cover plate 26 for deepening the housing, which is used to insert a not shown The plug that goes out is compressed on the socket 27. In the case of a cable connected via a plug to the socket 27 , the underside of the cover 26 also has a recess 28 in order to simplify the assembly of the cover 26 . The cover plate 26 is fixed on the housing 15 by countersunk bolts 29 , and its nut 30 is embedded in the cover plate 26 .

If, in a slightly modified version of the structure described above, the bracket 16 is not adjustable relative to the holder 5 or forms a common bracket with said bracket 5, the adjusting screw 2 can also be anchored in the bracket part of this bracket.

Claims (3)

1. be used on rail, being fixed for sensor, the equipment of the support of switch element and similar elements, form by rail claw and device, described rail claw has and can be assembled to claw jaw on the rail pin from opposite side, a claw jaw in the described claw jaw is arranged at bracket side, another claw jaw is by at least one adjustment bolt that can pass at described rail underfooting face, can adjust with respect to the claw jaw ground of described bracket side, described device is set for adjusts the distance of described support to the zone of action of claw jaw on described rail pin of described bracket side, it is characterized in that, in order to adjust described rail claw in advance to different rail pin width, the claw of the claw jaw (4) of described at least bracket side part (6) does not rely on that described adjustment bolt (2) can be adjusted voluntarily and is connected with described support (16) itself or with keeper (5) on being in described support regularly, and the claw jaw (4) of described bracket side or its claw part (6) is when adjusting at every turn in advance, all form fit ground by the mutual interlocking of adjoining face of described claw jaw (6) and described support or described keeper (5) for example groove or cross section on zigzag special-shaped portion (11,12) lock.

2. by the described equipment of claim 1, it is characterized in that, the claw jaw (4) of described bracket side has two claw parts (6) that are arranged on middle keeper (5) both sides, described claw part (6) connects by the fishbolt (7) that passes described keeper (5), and can adjust with respect to described fishbolt (7) or described keeper according to slotted hole (10) (5).

3. by claim 1 and 2 described equipment, it is characterized in that described adjustment bolt (2) is rigidly fixed in described support (16) or the described keeper (5).

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