Rapid tensioning device, sensor assembly having rapid tensioning device, and use of rapid tensioning device
By designing bendable tension clamps and spaced-arranged tensioning units, the existing equipment has been solved for the limited use and poor compatibility on tracks, and the fastening above the sleeper and the matching of different size components is achieved, improving the The flexibility and durability of the equipment.
Patent Information
- Application Number
- CN202380040217.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-04-13
- Filing Date
- 2023-04-12
- Publication Date
- 2024-12-27
AI Technical Summary
Existing fast tensioning equipment is limited when used on tracks, unable to fasten the sensors above the sleepers, and poor compatibility, making it impossible to flexibly match track monitoring components of different sizes.
A fast tensioning device is designed, and its tensioning unit is arranged at intervals along the longitudinal extension of the track. The tensioning clamp has a curved section, which can adjust the spacing on the longitudinal extension of the track. The clamping area is designed to adapt to sleepers and track monitoring. element, providing greater reception area and flexibility.
The assembly above the sleeper is achieved, the compatibility and flexibility of the sensor is improved, and the ability to match rail monitoring elements of different sizes is reduced, manufacturing costs are improved, and the durability and reception area of the equipment is improved.
Smart Images
Figure CN119213182A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a quick-tensioning device for fastening at least one track monitoring element on a track, the quick-tensioning device having two tensioning units. The tensioning units each have two tensioning clamps and a tensioning device. The two tensioning clamps can be connected at a first end by a tensioning device along a tensioning axis in such a way that the tensioning device engages the track bottom of the track from below when fastened on the track. The tensioning clamps each have a clamping region at a second end, which is designed to be arranged in a force-locking manner on a track neck of the track and / or a track monitoring element. In addition, the invention relates to a sensor assembly having a quick-tensioning device and an application of a quick-tensioning device. Background Art
[0002] Rapid tensioning devices are used, for example, in railway engineering to fasten track monitoring elements to the track in a non-destructive manner. Here, the track monitoring element is clamped to the track by the rapid tensioning device. This makes it possible to avoid drilling holes in the track to form the screw fastening. The fastening of the track monitoring element by the rapid tensioning device can be achieved permanently, that is, for the service life of the monitoring element, or only temporarily, for example until the adhesive material between the track and the monitoring element hardens.
[0003]
[01] A fastening device and a method for fastening at least one sensor to a railway track are known. The fastening device has two clamping clips and two crossbar elements, which connect the clamping clips. The clamping clips are arranged on the crossbar elements in a foldable manner so that the fastening device can be pushed under the track in the retracted state of the clamping clips. Subsequently, the clamping clips can be folded out to fasten the sensor to the track.
[0004] However, the clamping fastening devices known from the prior art are limited in their possibilities for use on the rail. Thus, these fastening devices cannot be arranged on the sleepers, since conventional fastening devices would collide with the sleepers. Likewise, arrangement directly next to the sleepers is also hampered, since installation space is required for tools to access the fastening devices. Thus, the position of the sensor on the rail is also limited by the fastening device. For example, a sensor with conventional clamping fastening devices cannot be fastened on the rail above the sleepers, since conventional fastening devices would collide with the sleepers.
[0005] Another fastening device is known from the previously mentioned
[01] , in which the tensioning clips are arranged on a common tensioning means and extend away from the tensioning means in a V-shaped manner. However, this type of construction is only an insufficient extension of the previously described possibilities for use on the rail, since it is still not possible to fasten the sensor above the sleeper. In addition, the V-shaped arrangement of the tensioning clips significantly reduces the receiving area between the tensioning clips for the sensor to be fastened. As a result, only sensors can be arranged on the rail via the fastening device, which sensors are adapted to this reduced receiving area of the fastening device. As a result, the sensor compatibility of the fastening device is greatly restricted. Summary of the invention
[0006] The object of the present invention is to provide a rapid tensioning device in which the possibilities for use on rails are improved and the sensor compatibility is increased. In addition, the object of the present invention is to propose a sensor arrangement and a use of a rapid tensioning device.
[0007] According to the invention, this object is achieved by a quick-release tensioning device of the type mentioned at the outset having the characterizing features according to claim 1 , by a sensor arrangement of the type mentioned at the outset having the characterizing features according to claim 11 and by the use of a quick-release tensioning device having the characterizing features according to claim 14 .
[0008] In other words, the object is achieved by a quick tensioning device in which the tensioning units as separate elements can be arranged on the rail in a manner spaced apart from one another along the longitudinal extension of the rail, and in which the tensioning clamps each have at least one bending section which is bent in a plane orthogonal to the tensioning axis.
[0009] Therefore, the rapid tensioning device according to the present invention has a number of advantages over conventional rapid tensioning devices.
[0010] Firstly, the quick-tensioning device can be flexibly adapted to the size of the track monitoring element to be fastened by varying the spacing between the quick-tensioning units along the longitudinal extension of the track, thereby increasing the flexibility of the quick-tensioning device with respect to the track monitoring element to be fastened.
[0011] Furthermore, the bent sections formed on the clamping clips enable the clamping region to approach “obstacles” present along the longitudinal extent of the rail, such as sleepers, without reducing the accessibility of the clamping means for tools or the receiving area between the clamping clips for the rail monitoring element.
[0012] In addition, by the separate configuration of the tensioning units, an intermediate space configured between the tensioning units in the longitudinal direction of the track is open, which intermediate space can be positioned around the sleeper, for example. In this way, assembly above the sleeper can be achieved.
[0013] Preferably, the track described according to the invention is a railway track. Preferably, the track has a broad-gauge bottom rail railway profile according to DIN EN 13674-1:2017-07, a track profile according to British standards or a track profile according to Australian standards. For example, but by no means conclusive, the track is 60E1, 49E1, 54E3, 54E1, R65 or BS80. In other words, the rapid tensioning device according to the invention is designed for use on all common track profiles.
[0014] In the state in which the quick-tensioning device is mounted on the rail, the tensioning device engages the rail foot of the rail from below. Here, the rail foot is to be understood as the part of the rail that supports the rail. The rail head of the rail is to be understood as the part of the rail that is designed to guide the wheels of a train. The rail neck is to be understood as the part of the rail that connects the rail foot and the rail head. Engaging the rail foot from below is therefore to be understood as clamping the rail on the side opposite the rail head.
[0015] In the state of the tensioning unit being mounted on the rail, the tensioning clips of the tensioning unit respectively engage the rail bottom from below. Thus, in the mounted state, each tensioning unit surrounds the rail bottom.
[0016] Preferably, at least one, in particular each, tensioning unit abuts against the rail base. Thus, in combination with the two clamping areas on the tensioning clip, a particularly reliable fixation of the tensioning unit on the rail can be achieved.
[0017] The tensioning units can be arranged separately from one another on the rail or the rail monitoring element. In other words, the tensioning units form a loose composite structure. As a result, the spacing between the tensioning axes of the tensioning units can be adjusted in the direction of the longitudinal extension of the rail, depending on the design of the rail monitoring element, in particular the size of the rail monitoring element.
[0018] Likewise, by twisting the tensioning unit about an axis perpendicular to the elongated extension of the rail, the dimensions of the quick tensioning device in the vertical direction can be adapted to the rail profile of the rail. In other words, the height of the quick tensioning device can be adapted.
[0019] Furthermore, a more cost-effective production of the rapid tensioning device can be achieved, since additional components for connecting the tensioning units, such as transverse cross members, can be omitted.
[0020] The tensioning axis describes the axis of the tensioning device along which the spacing between the tensioning clips and thus the spacing between the clamping areas of the tensioning clips of the tensioning unit can be reduced. According to the invention, the tensioning axis extends below the rail base through the two tensioning clips of a tensioning unit. In other words, the tensioning axis extends below the rail base of the rail. Preferably, the tensioning axis extends transversely to the longitudinal extension of the rail, in particular at right angles to the longitudinal extension of the rail. In other words, the tensioning axis extends obliquely relative to the rail.
[0021] Preferably, the bending section according to the invention has a bending axis which is parallel to the tensioning axis. The tensioning clip is thus bent in a plane projected in the direction of the tensioning axis. The plane projected in the direction of the tensioning axis corresponds to the installation space of the track monitoring element. The bending section thus increases the receiving area for the track monitoring element between the tensioning units.
[0022] In a preferred embodiment of the rail monitoring element, the curved section is arcuate and has a radius of curvature of at least 10 mm, in particular at least 15 mm, particularly preferably at least 25 mm and at most 130 mm, in particular at most 120 mm, particularly preferably at most 110 mm. This has the advantage of increasing the receiving area between the tensioning units while maintaining a moderate mechanical load in the tensioning clamp during tensioning of the tensioning units. Preferably, the curved section has a plurality of different radii of curvature. As a result, the receiving area can be increased even more precisely with reference to a moderate load.
[0023] Furthermore, an embodiment of the rapid tensioning device is preferred in which the tensioning clips of the tensioning unit are designed symmetrically with respect to a plane orthogonal to the tensioning axis. As a result, the tool design for one tensioning clip can be realized particularly simply by mirroring the tool for the other tensioning clip, and changes can be performed accordingly more quickly. This has a particularly favorable effect on the development costs.
[0024] Preferably, the tensioning units of the quick tensioning device are designed to be identical. In other words, two tensioning units can be used at two locations provided for tightening the rail monitoring element. As a result, the costs for manufacturing tools for producing the tensioning units and the unit costs of the components of the tensioning units can be reduced due to the high proportion of common parts.
[0025] In a preferred embodiment of the quick-tensioning device, the tensioning means is designed as a screw connection. For example, the tensioning means can be designed as an insertion screw, wherein the tensioning clamp has a through recess through which the tensioning means can be pushed. Furthermore, other tensioning clamps can, for example, have a recess with a thread into which the insertion screw can be screwed.
[0026] Preferably, the tensioning device is constructed in the form of a through-tightening portion that passes through the two tensioning clamps. In this case, the tensioning device can have screw nuts at both ends for locking the spiral connection. As a result, the tensioning device can be constructed particularly cost-effectively and reliably.
[0027] In a particularly preferred embodiment, the tensioning device extends through two tensioning clips of a tensioning unit, wherein the tensioning device has a sliding body on which the tensioning clips are arranged, and wherein the tensioning device has a screw on each tensioning clip, which fastens the respective tensioning clip to the sliding body and is designed to set a maximum spacing between the tensioning clips along the tensioning axis. As a result, the maximum spacing of the tensioning clips relative to the sliding body can be set, thereby enabling asymmetrical tensioning of the tensioning unit.
[0028] Preferably, the tensioning device is designed for tensioning by means of a tool, in particular an electrically and / or pneumatically operated tool. Further preferably, the tensioning device is designed for tensioning by means of a tool for tightening and loosening screws and nuts. For example, the tensioning device is designed for tensioning by means of a compressed air screwdriver and / or an electric screwdriver.
[0029] The following embodiment of the rapid tensioning device is further preferred: in this embodiment, the tensioning clip is made of a metal material, in particular aluminum and / or steel. The metal material has a high yield strength, which enables a greater load capacity of the tensioning clip. As a result, the fatigue strength and durability of the rapid tensioning device can be increased.
[0030] In a preferred embodiment of the rapid tensioning device, the tensioning unit has at least one insulating element, which is designed to electrically insulate the rapid tensioning device from the rail. This can prevent the tensioning unit from being charged and can prevent disturbances of the rail monitoring element to be fastened, which can be caused, for example, by the influence of the magnetic field of the rail monitoring element. The insulating element is preferably designed as an insulating sleeve.
[0031] Preferably, the tensioning unit surrounds at least one first end of one of the two tensioning clips and, in the state in which the quick-release tensioning device is fastened to the rail, electrically insulates the quick-release tensioning device from the rail base. In other words, the tensioning unit rests on the rail base of the rail by means of the insulating means, while the tensioning clip has no direct contact with the rail base. Electrical insulation can thereby be achieved particularly reliably.
[0032] Further preferably, in the assembled state, the insulating sleeve surrounds the two first ends of the two clamping clips of the tensioning unit. In other words, the insulating sleeve covers the middle region formed along the tensioning axis between the clamping clips. Particularly advantageously, the middle region between the first ends of the two clamping clips of the tensioning unit can be reliably protected from contamination by the insulating means and the functional capability of the tensioning unit can be permanently maintained.
[0033] In a preferred embodiment of the quick-tensioning device, at least one, in particular both, of the tensioning units has electrical insulation means at the first and second ends. This allows the tensioning unit to be electrically insulated both relative to the rail base and relative to the rail neck. Preferably, all insulation means are designed as insulating sleeves.
[0034] An embodiment of the rapid tensioning device is further preferred in which the tensioning units each have at least one clamping template which is designed for positioning the tensioning clip on the rail neck. The clamping template facilitates the exact positioning of the tensioning clip and thus the exact position of the rail monitoring element on the rail. Preferably, the clamping template is designed in such a way that it matches and / or can match the profile of the rail. This allows even more accurate positioning.
[0035] A preferred embodiment of the rapid tensioning device provides that a respective clamping template is fastened or can be fastened to at least one, in particular each, second end of a tensioning clamp of the tensioning unit. This allows a particularly loss-proof arrangement of the clamping template and facilitates rapid mounting of the rapid tensioning device on the rail.
[0036] Preferably, the clamping template can be sleeved on the clamping area of the tensioning clamp. Thus, the fast replacement of the clamping template can be realized under maintenance conditions, and / or the rapid tensioning device can be matched to the determined profile of the track more quickly.
[0037] Further preferably, the two tensioning clamps of the tensioning unit are configured to be used to arrange at least one clamping template. In other words, the clamping template can be arranged not only on the second end of one tensioning clamp, but also on the second end of another tensioning clamp.
[0038] Furthermore, a further development of the rapid tensioning device is preferred in which the clamping plate has at least one element which, in conjunction with the tensioning clip, limits, in particular prevents, a twisting of the clamping plate relative to the tensioning clip in a form-fitting manner. For example, locking projections and / or locking recesses of the clamping plate can engage in complementary recesses and / or projections of the tensioning clip. As a result, the relative position of the clamping plate relative to the tensioning clip can be reliably predetermined and the arrangement of the tensioning unit on the rail can also be made easier.
[0039] A further preferred embodiment of the rapid tensioning device is one in which at least one of the clamping templates is designed in a U-shaped manner in a cross section parallel to the tensioning axis. Preferably, in the state in which the rapid tensioning device is arranged on the rail, the clamping template surrounds the rail monitoring element.
[0040] The clamping template can be designed for arrangement between the rail foot and the rail head of the rail. Preferably, the clamping template can be designed for arrangement in a clamping manner between the rail foot and the rail head. Particularly preferably, the clamping template is designed for contacting the rail foot and the rail head of the rail. In other words, in the state mounted on the rail, the clamping template is arranged in a non-contact manner with the rail neck. As a result, positioning of the tensioning clamp can be achieved particularly reliably without engaging in the fastening area of the rail monitoring element on the rail.
[0041] A further preferred embodiment of the rapid tensioning device is one in which the clamping template is designed to at least partially receive, in particular fix, the rail monitoring element. As a result, the rail monitoring element can be arranged particularly securely on the tensioning unit.
[0042] Preferably, the clamping template comprises an electrically insulating material, in particular, the clamping template consists of an electrically insulating material. For example, the clamping template can consist of plastic, in particular PA6, particularly preferably glass-fiber reinforced PA6. As a result, electrical insulation of the tensioning unit relative to the rail can be advantageously achieved with the aid of the clamping template, and the strength of the clamping template can be increased.
[0043] In a particularly preferred embodiment, the clamping templates each have at least one fastening insert, which is in particular sleeve-shaped and / or metallic, and which is designed to arrange the clamping template on the clamping area of the clamping clip. As a result, the strength of the clamping template can be increased locally, thereby further improving the durability of the clamping unit.
[0044] Furthermore, the underlying object is achieved by a sensor arrangement having a rail, a quick-release tensioning device as described above, and a rail monitoring element mounted on the rail by means of the quick-release tensioning device, wherein a rail neck of the rail and the rail monitoring element are arranged at least partially between the clamping regions of the tensioning clips of two tensioning units of the quick-release tensioning device;
[0045] wherein the tensioning units respectively surround the track bottom of the track; and
[0046] In this case, a clamping force is brought about between the tensioning unit, the rail monitoring element and the rail neck along a clamping axis extending through the clamping region.
[0047] Therefore, according to the sensor assembly according to the invention, the track monitoring element is pressed onto the rail neck of the rail by means of the tensioning unit of the quick tensioning device. Thus, the track monitoring element can be arranged on the rail in a non-destructive and permanent manner, which arrangement can be released again when necessary.
[0048] A further advantage of the sensor arrangement according to the invention is that the spacing of the tensioning units of the rapid tensioning device can be adapted to the rail monitoring element to be fastened, so that rail monitoring elements of different sizes can be fastened to the rail using the same rapid tensioning device.
[0049] Advantageously, the intermediate space between the tensioning units of the quick-tensioning device is not blocked by additional components, such as transverse crossbars, whereby the sensor arrangement can be arranged such that, for example, a sleeper of the track is arranged in the intermediate space between two tensioning units. In other words, the tensioning units can be arranged on both sides next to the sleepers in the longitudinal extension of the track, whereby the rail monitoring element can be fastened on the rail neck above the sleepers. As a result, the flexibility in positioning the rail monitoring element can be increased.
[0050] According to the invention, the two clamping regions of the clamping clip are located on a clamping axis. The clamping axis extends transversely to the longitudinal extension of the rail, in particular at right angles to the longitudinal extension of the rail. Preferably, the clamping axis is designed parallel to the clamping axis.
[0051] Preferably, the tensioning units of the quick tensioning device have identical, in particular identical, tensioning clamps. In other words, the tensioning clamp of one tensioning unit is identical to the tensioning clamp of the other tensioning unit. Particularly preferably, the quick tensioning device has two identical tensioning units.
[0052] The tensioning clip of a tensioning unit can be arranged on the track in a direction toward and / or away from the other tensioning unit. In other words, the bending sections of the tensioning clip can be bent toward and / or away from each other.
[0053] In a particularly preferred embodiment of the sensor arrangement, the spacing between the tensioning axes is greater than the spacing between the clamping axes of the tensioning units, and sleepers are arranged between the tensioning units. In other words, the tensioning clips of the tensioning units point away from each other, or the bent section of the tensioning clip of one tensioning unit is bent away from the other tensioning unit. This allows for as large a gap as possible between the tensioning units for receiving the sleepers (assembly above the sleepers). Due to the bent sections of the tensioning clips pointing away from each other, an increased spacing between the sleepers and the tensioning axes is produced, which allows the tensioning means of the tensioning units to be easily accessible to the tool.
[0054] In an alternative preferred embodiment of the sensor assembly, the spacing between the tensioning axes is smaller than the spacing between the clamping axes of the tensioning units, and the tensioning units are arranged between two adjacent sleepers. In other words, the tensioning clamp of one tensioning unit is bent in the direction of the other tensioning unit, or the bent section of the tensioning clamp is bent in the direction of the other tensioning unit. As a result, the dimensions of the rapid tensioning device in the direction of the longitudinal extension of the track can be kept small. This enables the arrangement of the rapid tensioning device between adjacent sleepers (intermediate shaft assembly). Due to the bent sections of the tensioning clamps facing each other, an increased spacing between the sleeper and the tensioning axis is generated, which enables the tool to have ample access to the tensioning means of the tensioning unit.
[0055] Furthermore, the underlying object is achieved by the use of the above-described rapid tensioning device for arranging a rail monitoring element on a rail neck above a sleeper of a rail.
[0056] Preferably, before the track monitoring element is mounted on the track, the parts of the quick-tensioning device are pre-assembled / fixed on the corresponding track monitoring element. This significantly simplifies the assembly on the track and prevents small parts from getting lost.
[0057] Further advantages of the invention are apparent from the description and the drawings. Likewise, according to the invention, the features mentioned above and further explained can be applied individually or in any combination in multiple forms. The embodiments shown and described should not be understood as an exhaustive enumeration, but rather have an exemplary character for the description of the invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0058] Figure 1 A perspective view of a first specific embodiment of a sensor arrangement is shown, which has a rail, a rail monitoring element and a rapid tensioning device.
[0059] Figure 2 Show Figure 1 Side view of the sensor assembly in FIG.
[0060] Figure 3 A second embodiment of a sensor arrangement is shown in a side view on a track with a low track profile.
[0061] Figure 4 A perspective view of a third embodiment of the sensor arrangement on a sleeper is shown during installation above the sleeper.
[0062] Figure 5 A perspective view of a quick-release clamping device with two clamping units is shown, which has a clamping template and an insulating sleeve.
[0063] Figure 6 Show Figure 5Side view of a tensioning unit of a quick-tensioning device in FIG. 5 , which has two tensioning clips but without a clamping template and an insulating sleeve.
[0064] Figure 7 A perspective view shows an embodiment of a clamping template for a quick-tensioning device, which has a rigid rail stop and a resilient rail stop.
[0065] Figure 8 A perspective view shows a further embodiment of a clamping template for a quick-tensioning device, which has two rigid rail stops and a plurality of locking projections. DETAILED DESCRIPTION
[0066] Figure 1 A sensor arrangement 10 is shown, which has a rail 12, a rail monitoring element 14 and a quick-release clamping device 16. The rail monitoring element 14 has a first rail contact half 18, here in the form of a transmitting unit, and a second rail contact half 20, here in the form of a receiving unit. The first rail contact half 18 and the second rail contact half 20 are arranged on both sides of the rail 12 in a clamped manner on a rail neck 22 of the rail 12 by means of the same quick-release clamping device 16.
[0067] The quick-release device 16 has a first tensioning unit 24 and a second tensioning unit 26. The tensioning units 24, 26 are arranged on the rail 12 at a distance from one another along a longitudinal extension 28 of the rail 12. The tensioning units 24, 26 are connected to one another via the rail 12 only in the assembled state.
[0068] Each tensioning unit 24, 26 has a first tensioning clip 30 and a second tensioning clip 32 (at Figure 1 Only the second tensioning clip 32 can be seen in the figure). The tensioning clips 30, 32 each engage the rail base 34 of the rail 12 from below. In other words, each tensioning unit 24, 26 engages the rail base 34 from below by means of the tensioning clips 30, 32.
[0069] The first tensioning clamp 30 and the second tensioning clamp 32 of the first tensioning unit 24 and the second tensioning unit 26 are respectively connected at the first end 36 (see Figure 6 ) are connected to each other by a tensioning device 38. The tensioning device 38 extends below the track bottom 34 and is Figure 1 By actuating the tensioning means 38 , here by rotating the screw connection, the distance between the first tensioning clip 30 and the second tensioning clip 32 of the respective tensioning unit 24 , 26 along the tensioning axis 40 can be varied.
[0070] Subsequently, the spacing between the tensioning clip 30 and the tensioning clip 32 along the clamping axis 42 is also changed. The clamping axis 42 extends through two clamping regions 44 of the tensioning units 24, 26, respectively (for the sake of clarity, only one clamping region 44 is provided with a reference numeral). The tensioning clips 30, 32 have a clamping region 44 at the second end 46. Along each clamping axis 42 of the tensioning clips 30, 32, not only the rail monitoring element 14 but also the rail neck 22 is arranged in part. If, for example, the spacing of the tensioning clips 30, 32 is reduced by the tensioning means 38, a clamping force is brought about, which clamps the rail monitoring element 14 along the clamping axis 42 to the rail neck 22. If the spacing of the tensioning clips 30, 32 is increased by the tensioning means 38, the rail monitoring element 14 can be released from the rail 12.
[0071] According to the embodiment shown, the quick-tensioning device 16 has four clamping templates 48. Figure 1 , three of the clamping templates 48 can be seen. A clamping template 48 is fastened to each clamping region 44 of the clamping clamps 30, 32. Each clamping template 48 can be designed to partially receive a rail monitoring element 14. In other words, as shown, each clamping template 48 can surround an end region of the rail monitoring element 14. The clamping template 48 is adapted to the profile of the rail 12 and is arranged between the rail foot 34 and the rail head 50 of the rail 12 without contacting the rail neck 22. In other words, the freedom of movement of the clamping template 14 in the vertical direction is obstructed by the rail foot 34 and the rail head 50, or the clamping template 14 is clamped between the rail foot 34 and the rail head 50. As a result, the clamping position of the rail monitoring element 14 on the rail neck 22 of the rail 12 can be predetermined particularly reliably.
[0072] Figure 2 Show Figure 1 A sensor arrangement 10 is provided in the embodiment of the present invention, which comprises a track monitoring element 14 which is fastened to a track 12 by means of a quick-tensioning device 16 .
[0073] like Figure 2 As shown, the tensioning units 24, 26 are arranged in the longitudinal extension 28 of the rail 12 (see Figure 1 ) are arranged in a spaced-apart manner on the track 12. The tensioning axes 40 of the tensioning units 24, 26 have a tensioning axis spacing 52, and the clamping axes 42 of the tensioning units 24, 26 have a clamping axis spacing 54. According to the embodiment shown, the tensioning axis spacing 52 is smaller than the clamping axis spacing 54. The tensioning units 24, 26 are positioned completely below the track monitoring element 14. As a result, the dimensions of the sensor arrangement 10 in the direction of the longitudinal extension 28 of the track 12 can be kept small.
[0074] Furthermore, the sensor arrangement 10 shown can be brought closer to a collision object on the rail, such as a rail sleeper 56 (see FIG. Figure 4 ) is guided in the manner of the clamping axis distance 54 and the tensioning axis distance 52, since half of the difference between the clamping axis distance 54 and the tensioning axis distance 52 can be used to allow the tool to access the tensioning device 38.
[0075] A straight line 58 intersecting the tensioning axis 40 and the clamping axis 42 at right angles extends obliquely at an angle 60 relative to the longitudinal extension 28 of the rail 12 (for the sake of clarity, the straight line 58 is shown in FIG. Figure 2 ). By twisting the tensioning units 24, 26 about the respective tensioning axis 40, the vertical position of the track monitoring element 14 on the track 12 can be adjusted. For example, a small angle 60 leads to a low vertical position of the track monitoring element 14 on the track 12, in which the tensioning axis spacing 52 is small and the clamping axis spacing 54 is large compared to a medium angle 60. Conversely, a large angle 60 leads, for example, to a high vertical position of the track monitoring element 14 on the track 12, in which the tensioning axis spacing 52 is large and the clamping axis spacing 54 is small compared to a medium angle 60.
[0076] The tensioning units 24, 26 have a curved section 62 which is curved in the normal plane of the tensioning axis 40 of the respective tensioning unit 24, 26. In other words, the curved section 62 deviates from the straight line 58 at least in a partial section. The curved section 62 has at least one radius of curvature 64, 66. In the illustrated embodiment of the rapid tensioning device 16, the two radii of curvature 64, 66 are provided with reference numerals. The radius of curvature 64 differs from the radius of curvature 66 in terms of its value.
[0077] Figure 3 A second specific embodiment of the sensor arrangement 10 is shown in a side view. Figure 3 The sensor assembly 10 shown is Figure 1 and 2 The embodiment shown differs substantially in that the clamping unit is arranged at a different angle relative to the rail.
[0078] According to the schematic diagram, the rail 12 has a low rail profile, such as a BS80 profile. In other words, the rail neck 22 of the rail 12 has a small dimension in the vertical direction, which hinders the conventional arrangement of the rail monitoring element 14.
[0079] In this case, as shown, a small angle 60 can be set by twisting the tensioning units 24, 26, thereby reducing the vertical dimensions of the quick-tensioning device 16. As a result, the rail monitoring element 14 can be fastened to a rail 12 with a low rail profile without changing the components of the quick-tensioning device 16. Furthermore, no additional installation space is required below the rail 12, and the tensioning units 24, 26 can rest against the rail base 22.
[0080] Figure 4 A further embodiment of a sensor arrangement 10 is shown, in which a track monitoring element 14 is fastened on a rail 12 above a sleeper 56 by means of a quick-release tensioning device 16 .
[0081] The tensioning units 24, 26 of the quick-release tensioning device 16 are arranged on the rail 12 in such a way that the tensioning axis distance 52 is greater than the clamping axis distance 54. In other words, the tensioning units 24, 26 are bent away from the rail monitoring element 14 or the respective tensioning unit 24, 26. The dimension of the quick-release tensioning device 16 is increased over the longitudinal extension 28 of the rail 12, whereby half of the difference between the tensioning axis distance 52 and the clamping axis distance 54 is required for the tool to access the tensioning means 38.
[0082] Figure 5 A quick tensioning device 16 is shown with two tensioning units 24, 26. The tensioning units 24, 26 each have a first tensioning clip 30 and a second tensioning clip 32. In the embodiment shown, the tensioning unit 24 is substantially identical to the tensioning unit 26. In other words, the tensioning unit 24 can be used as the tensioning unit 26 in a manner that it is rotated about a height axis.
[0083] The first tensioning clip 30 and the second tensioning clip 32 are secured at their first ends 36 (see Figure 6 ) are connected to each other by a tensioning device 38 and can be moved toward or away from each other along a tensioning axis 40 by the tensioning device 38. Accordingly, the clamping regions 44 formed on the second ends 46 of the tensioning clips 30, 32 can be moved toward or away from each other along the clamping axis 42 by the tensioning device 38.
[0084] Preferably, the clamping regions 44 each have at least one clamping stop 68 for transmitting the clamping force from the clamping clips 30 , 32 to the rail monitoring element 214 (see Figure 1-4 ). According to the illustration, the clamping units 24, 26 have a clamping stop 68 on the clamping template 48. The clamping stop 69 can also be formed directly on the clamping clips 30, 32.
[0085] Furthermore, it can be provided that the tensioning units 24, 26 can have, in particular on each tensioning clip 30, 32, a centering projection 70 which projects beyond the clamping stop 68 along the clamping axis 42. Preferably, the centering projection 70 is designed to engage in a complementary recess of the rail monitoring element 14. As a result, the rail monitoring element 14 can be clamped by the tensioning units 24, 26 in a particularly positionally secure manner.
[0086] In a particular, generally applicable embodiment, at least one clamping template 48 is designed to be capable of being clamped perpendicularly to the clamping axis 42, in particular perpendicularly to the longitudinal extension 28 of the rail 12 (see Figure 1 , 2 and 4) in at least one direction. In other words, the clamping template 48 can move relative to the clamping clip 78. As a result, the angular offset caused by the elastic deformation of the clamping clip and the shaft during tensioning can be compensated.
[0087] The clamping clip 30 has an insulating means 72 in the form of a plastic sleeve which, in the arranged state, electrically insulates the rail monitoring element 14 from the clamping clip 30 . As shown, the insulating means 72 is slipped onto the centering projection 70 of the clamping clip 30 .
[0088] Each tensioning unit 24 , 26 has a first end 36 in the form of a plastic sleeve covering the tensioning clip 30 , 32 (see Figure 6 ) which electrically insulates the tensioning units 24, 26 from the rail base 34 when the quick-release tensioning device 16 is arranged on the rail 12. Such a covering insulation 74 prevents contamination of the intermediate region between the first ends 36 of the tensioning clips 30, 32, thereby maintaining the functional capability. In addition, the insulation 74 can serve as a stop surface for the quick-release tensioning device 16 on the rail 12. Thus, together with the clamping region 44 for each tensioning unit 24, 26, a three-point fixation on the rail 12 can be achieved.
[0089] According to the embodiment shown, each tensioning clip 30, 32 can have a cylindrical tensioning device section 76 which, when the rapid tensioning device 16 is arranged on the rail 12, engages the rail base 34 from below and is configured to at least partially receive the tensioning device 38. In other words, the tensioning device section 76 is configured primarily along the tensioning device axis 40.
[0090] According to the embodiment shown, each clamping clip 30, 32 can have a load-optimized clamping section 78, which extends primarily in a plane orthogonal to the clamping axis 40. A load-optimized design is to be understood as a design of the clamping section 78 that is designed for the load conditions that are provided, in this case for the bending moments about the height axis of the respective clamping clip 30, 32. This effectively avoids oversizing the clamping clip 30, 32. For example, each clamping clip 30, 32 can have a reinforcing rib 80, which is designed between the tensioning means section 76 and the clamping section 78, in order to increase the strength of the clamping clip 30, 32 in a direction-dependent manner.
[0091] The insulating element 74 can have a recess 82 in the direction of the tensioning element axis 40, into which projections of the corresponding tensioning clips 30, 32 of the same tensioning unit 24, 26 - here two reinforcing ribs 80 - engage and prevent relative rotation of the tensioning clips 30, 32 relative to each other. As a result, the arrangement of the quick-release tensioning device 16 on the rail 12 can be simplified.
[0092] Figure 6 Show Figure 5 The tensioning unit 24, 26 of the quick tensioning device 16 in FIG. 1 has a first tensioning clip 30 and a second tensioning clip 32, but does not have a clamping template 48 and an insulating device 72, 74. The tensioning clips 30, 32 each have a first end 36 and a second end 46. The first end 36 is connected via the tensioning device 38 in such a way that the tensioning clips 30, 32 can move relative to each other along the tensioning axis 40.
[0093] For this purpose, as shown in the figure, the tensioning means 38 can have a cylindrical sliding body 84, which can be pushed into a recess of the tensioning clip 30, 32 formed on the first end 36 along the tensioning axis 40, and on which the tensioning clip 30, 32 is arranged in a movable manner along the tensioning axis 40. In addition, the cylindrical sliding body 84 can have threaded recesses at both ends, into which screws 86 can be screwed in each case. By turning the screws 86, the maximum spacing between the tensioning clips 30, 32 along the tensioning axis 40 can be adjusted.
[0094] The tensioning clip 30 is designed essentially mirror-symmetrically to the tensioning clip 32. However, the tensioning clip 30 has a support projection 88 which projects beyond the cylindrical tensioning element section 76 along the tensioning axis 40. The support projection 88 facilitates the adaptation of the tensioning units 24, 26 with reference to the width of the rail base 84. In addition, the support projection 88 can be used to receive the insulating element 74. The support projection 88 can be designed integrally with one of the tensioning clips 30, 32 or the insulating element 74, or can be arranged loosely on the tensioning element 38.
[0095] Figure 7 An embodiment of a clamping template 48 is shown. The clamping template 48 has a base body 90 which is U-shaped or C-shaped in cross section. The base body 90 can be produced, for example, from plastic in a plastic injection molding process. The clamping template 48 has a fastening insert 92 which is arranged in the base body 90. Preferably, the fastening insert 92 is made of metal. Further preferably, the fastening insert 92 is encapsulated by plastic injection molding during the production of the base body 90 and is connected to the base body 90 in a non-detachable manner. For example, the clamping template 48 can be put onto the centering projections of the clamping clamps 30, 32 (see Figure 5 Preferably, the fastening insert 92 is configured to clamp the stop 68 (see Figure 5 ).
[0096] The inner surface 94 of the base body 90 is configured to partially receive the track monitoring element 14 (see Figure 1-4 ) and is adapted to the outer contour of the part of the track monitoring element 14 to be received.
[0097] In addition, according to the embodiment shown, the clamping template 48 or the base body 90 has a rigid rail stop 96 and a resilient rail stop 98. In the state in which the clamping template 48 is fastened to the rail 12, the rail stops 96, 98 rest against the rail base 34 and the rail head 50. In other words, the rail stops 96, 98 are adapted to the shape of the rail base 34 and the shape of the rail head 50. By means of the resilient rail stop 98, the clamping template 48 can be particularly easily inserted into a rail profile that deviates only slightly.
[0098] The resilient rail stop 98 can be formed integrally on the clamping template 48 .
[0099] In a special embodiment, the resilient rail stop 98 is made of a metal material, in particular spring steel. Typically, in this case, the resilient rail stop 98 is arranged on the clamping template 48 .
[0100] Figure 8 Another embodiment of a clamping template 48 is shown. Figure 8 The clamping template 48 shown has two rigid rail stops 96 .
[0101] In addition, the clamping template 48 has a plurality of - here four - locking protrusions 100, which are constructed on the base body 90 and which, when the clamping template 48 is arranged on the clamping clamps 30, 32, engage in complementary recesses on the clamping clamps 30, 32 and constitute an anti-twist portion of the clamping template 48 relative to the clamping clamps 30, 32.
[0102] In a special embodiment, it can be provided that the second end of at least one clamping clip 30, 32 has at least one locking projection 100 which engages in a recess of the clamping template 48 in order to achieve a rotational lock. Preferably, the recess is designed as an elongated hole.
[0103] Reference numerals list
[0104] 10 sensor components;
[0105] 12 tracks;
[0106] 14 Track monitoring components;
[0107] 16. Rapid tensioning equipment;
[0108] 18 first track contact half;
[0109] 20 Second track contact half;
[0110] 22 rail neck of rail 12;
[0111] 24 first tensioning unit;
[0112] 26 second tensioning unit;
[0113] 28 longitudinal extension of the track 12;
[0114] 30 First tightening clamp;
[0115] 32 second tensioning clamp;
[0116] 34 track bottom of track 12;
[0117] 36 first ends of the tensioning clamps 30, 32;
[0118] 38 tensioning device;
[0119] 40 tensioning axis;
[0120] 42 clamping axis;
[0121] 44 Clamping area,
[0122] 46 tensioning the second end of the clamp 30, 32;
[0123] 48 clamping template;
[0124] 50 track head of track 12;
[0125] 52 tension axis spacing;
[0126] 54 Clamping axis spacing;
[0127] 56 sleepers;
[0128] 58 straight line;
[0129] 60 degrees;
[0130] 62 curved sections;
[0131] 64: radius of the curved section 62;
[0132] 66 radius of the curved section 62;
[0133] 68 clamping stop;
[0134] 70 Centering protrusion;
[0135] 72 Insulation devices;
[0136] 74 Insulation devices;
[0137] 76 tensioning device section;
[0138] 78 clamping section;
[0139] 80 reinforcement ribs;
[0140] 82 a recess on the insulating device 74;
[0141] 84 sliding body;
[0142] 86 screws;
[0143] 88 support protrusions;
[0144] 90 clamping the base of the template 48;
[0145] 92 fastening insert for clamping the template 48;
[0146] 94 clamps the inner surface of the template 48;
[0147] 96 Rigid track stop;
[0148] 98 spring track stop;
[0149] 100 Locking protrusion.
[0150] References
[01] EP 3 420 134 B1 (Siemens Mobility GmbH)
Claims
1. A quick-tensioning device (16) for fastening at least one track monitoring element (14) to a track (12), the quick-tensioning device having two tensioning units (24, 26); in, The tensioning units (24, 26) each have two tensioning clamps (30, 32) and a tensioning device (38); wherein two clamping clips (30, 32) can be connected at a first end (36) by the clamping means (38) along a clamping axis (40) in such a way that the clamping means (38) engages from below a rail base (34) of the rail (12) in a state fastened to the rail (12); and wherein the clamping clips (30, 32) each have a clamping region (44) at the second end (46), the clamping region being designed to be arranged in a force-locking manner on a rail neck (22) of the rail (12) and / or on the rail monitoring element (14); It is characterized in that The tensioning units (24, 26) can be arranged as separate elements on the rail (12) in a spaced-apart manner along a longitudinal extension (28) of the rail (12); and The clamping clips (30, 32) each have at least one bending section (62) which is bent in a plane orthogonal to the clamping axis (40).
2. The rapid tensioning device (16) according to claim 1, characterized in that: The clamping clips (30, 32) of a clamping unit (24, 26) are designed symmetrically with respect to a plane orthogonal to the clamping axis (40).
3. The rapid tensioning device (16) according to any one of claims 1 or 2, characterized in that: The tensioning means (38) is designed as a screw connection, wherein the screw connection passes through a tensioning clip (30, 32) of a tensioning unit (24, 26).
4. The rapid tensioning device (16) according to any one of the preceding claims, characterized in that The clamping clips (30, 32) are made of a metallic material, in particular aluminum.
5. The rapid tensioning device (16) according to any one of the preceding claims, characterized in that The tensioning unit (24, 26) has at least one insulating means (72, 74) which is designed to electrically insulate the rapid tensioning device relative to the rail, wherein the insulating means (72, 74) is preferably designed as an insulating sleeve.
6. The rapid tensioning device (16) according to claim 5, characterized in that: The tensioning unit (24, 26) has an electrical insulation means (72, 74) at a first end (36) of each tensioning clip (30, 32) and at a second end (46) of at least one of the tensioning clips (30, 32), wherein the insulation means (72, 74) is preferably designed as an insulation sleeve.
7. The rapid tensioning device (16) according to any one of the preceding claims, characterized in that The clamping units (24, 26) each have at least one clamping template (48) which is designed to position the clamping clips (30, 32) on the rail neck (22).
8. The rapid tensioning device (16) according to claim 7, characterized in that: A clamping template (48) is fastened to a second end (46) of a clamping clip (30, 32), wherein the clamping template (48) can preferably be placed over a clamping region (44) of the clamping clip (30, 32).
9. The rapid tensioning device (16) according to claim 7 or 8, characterized in that: The clamping plate (48) has at least one element, in particular a locking projection 100 or a locking recess, which, in conjunction with the clamping clips (30, 32), limits, in particular prevents, a rotation of the clamping plate (48) relative to the clamping clips (30, 32) in a form-fitting manner.
10. The rapid tensioning device (16) according to any one of claims 7 to 9, characterized in that: The clamping template (48) is designed to at least partially receive, in particular fix, the rail monitoring element (24).
11. A sensor assembly (10) comprising a rail (12), a quick-tensioning device (16) according to any one of the preceding claims, and a rail monitoring element (14) mounted on the rail (12) by means of the quick-tensioning device (16), in, The rail neck (22) of the rail (12) and the rail monitoring element (14) are at least partially arranged between the clamping areas (44) of the tensioning clamps (30, 32) of the two tensioning units (30, 32) of the rapid tensioning device (16); wherein the tensioning units (24, 26) respectively surround the track bottom (34) of the track (12); and A clamping force is thereby generated between the respective tensioning unit (24, 26), the rail monitoring element (14) and the rail neck (22) along a clamping axis (42) extending through the clamping region (44).
12. The sensor assembly (10) according to claim 11, characterized in that The tensioning axis spacing (52) between the tensioning axes (40) is greater than the clamping axis spacing (54) between the clamping axes (42) of the tensioning units (24, 26), and a sleeper (56) is arranged between the tensioning units (24, 26).
13. The sensor assembly (10) according to claim 11, characterized in that The tensioning axis spacing (52) between the tensioning axes (40) is smaller than the clamping axis spacing (54) between the clamping axes (42) of the tensioning units (24, 26), and the tensioning units (24, 26) are arranged between two sleepers (56).
14. Use of a rapid tensioning device (16) according to any one of claims 1 to 10 for arranging a rail monitoring element (14) on a rail neck (22) of a rail (12) above a sleeper (56) of the rail (12).
15. The use according to claim 14, characterized in that: Before the rail monitoring element is mounted on the rail, the parts of the quick-release tensioning device are pre-mounted / fastened on the corresponding rail monitoring element.