CN113108885B - Track overload and unbalanced load detection device - Google Patents
Track overload and unbalanced load detection device Download PDFInfo
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- CN113108885B CN113108885B CN202110229014.0A CN202110229014A CN113108885B CN 113108885 B CN113108885 B CN 113108885B CN 202110229014 A CN202110229014 A CN 202110229014A CN 113108885 B CN113108885 B CN 113108885B
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 13
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- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
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- 238000006243 chemical reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
- G01G19/045—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles for weighing railway vehicles in motion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/04—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles
- G01G19/042—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing railway vehicles having electrical weight-sensitive devices
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- G—PHYSICS
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- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
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Abstract
The invention provides a track overload and unbalanced load detection device, and belongs to the technical field of track detection. The device comprises a clamp and a sensor clamped between the clamps, wherein the clamp comprises two clamping pieces which are oppositely arranged; each clamping piece comprises a main clamping piece and a secondary clamping piece embedded with the main clamping piece, the top end areas of the main clamping piece and the secondary clamping piece are used for installing a rail, the side wall of the opposite side of each main clamping piece along the width direction of the side wall of each main clamping piece is provided with an installation part, and each installation part is connected with two ends of a sensor, so that the sensor is located below the rail to transmit pressure signals of the rail. The detection device does not damage the track and the track bed at the installation site, and the clamp is directly clamped on the track, and the detection device has better stability through the fastening piece due to the fact that the two symmetrical clamping pieces are arranged and the fastening holes are respectively arranged in the horizontal direction and the vertical direction, so that the error of stress change is reduced, and the precision of the stress change is improved.
Description
Technical Field
The invention belongs to the technical field of track detection, and particularly relates to a track overload and unbalanced load detection device.
Background
The on-track overload and unbalanced load detection device is a metering device which is arranged on a railway along line and dynamically detects overload and unbalanced load conditions of a running train, and is an important component of a railway freight metering safety detection system in China. At present, the running speed of the railway trains in China is greatly increased, electrified railways are greatly opened, higher requirements are put on cargo loading reinforcement, the positions of freight safety in railway transportation safety are increasingly highlighted, and a large number of dynamic electronic rail scales and cargo train overload and unbalanced load detection devices are required to be installed on the railway lines. However, on the one hand, the anchor clamps that are used for installing the sensor at present are mostly too loaded down with trivial details, and the installation is wasted time and energy to some still can destroy the track state, and anchor clamps are difficult to dismantle, and on the other hand, adopts weighing sensor to measure the weight of wheel at present, and the foil gage produces impedance variation through external force stress abrupt change, thereby makes the unbalanced signal change that produces of internal bridge, reaches the output of multiple signal form through amplifying, filtering and signal's conversion, and then makes the sensor data that uses on the track unstable, inconsistent, repeatability linearity is not good.
Therefore, based on the above-mentioned problems, the present invention provides a new track overload and unbalanced load detection device.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a track overload and unbalanced load detection device.
The invention provides a track overload and unbalanced load detection device which comprises clamps and sensors clamped between the clamps; the clamp comprises two clamping pieces which are oppositely arranged, wherein each clamping piece comprises a main clamping piece and a secondary clamping piece which is embedded with the main clamping piece;
the top end areas of the main clamping piece and the auxiliary clamping piece are used for installing a track;
each of the opposite sides of the main clamping member is provided with a mounting portion along a side wall in the width direction thereof, and each mounting portion is connected with two ends of the sensor so that the sensor is located below the rail to transmit pressure signals of the rail.
Optionally, a first main abutment portion, a second main abutment portion and a third main abutment portion are sequentially arranged on one side of the main clamping piece, which faces the auxiliary clamping piece, along the thickness direction of the main clamping piece; the method comprises the steps of,
the auxiliary clamping piece is provided with a first auxiliary abutting part, a second auxiliary abutting part and a third auxiliary abutting part along the thickness direction of the auxiliary clamping piece towards one side of the main clamping piece in sequence; wherein,,
the second auxiliary abutting portion is embedded between the first main abutting portion and the third main abutting portion.
Optionally, at least one main horizontal fastening hole is formed on one side of the first main abutting part facing the first auxiliary abutting part; the method comprises the steps of,
the first auxiliary abutting part is provided with at least one auxiliary horizontal fastening hole in a penetrating mode along the length direction of the first auxiliary abutting part, and the main horizontal fastening hole is communicated with the auxiliary horizontal fastening hole, so that a fastening piece is arranged in the main horizontal fastening hole and the auxiliary horizontal fastening hole in a penetrating mode, and the clamping piece is fixed on the track along the horizontal direction.
Optionally, the third main abutment portion is provided with at least one main vertical fastening hole along a thickness direction thereof; the method comprises the steps of,
the second auxiliary abutting part is provided with at least one auxiliary vertical fastening hole in a penetrating mode along the thickness direction of the second auxiliary abutting part, and the main vertical fastening hole is communicated with the auxiliary vertical fastening hole, so that a fastening piece is arranged in the main vertical fastening hole and the auxiliary vertical fastening hole in a penetrating mode, and the clamping piece is fixed on the track along the vertical direction.
Optionally, the mounting portion is located at one side of the third main abutment portion in the width direction thereof; and, in addition, the processing unit,
the mounting part is provided with at least one main vertical mounting hole along the thickness direction; the method comprises the steps of,
at least one auxiliary vertical mounting hole is formed in the end portion of the sensor along the thickness direction of the sensor, and the mounting piece is arranged in the main vertical mounting hole and the auxiliary vertical mounting hole in a penetrating mode, so that the sensor is fixed on the clamping piece along the vertical direction.
Optionally, at least one first main horizontal mounting hole is penetrated in the second main abutting part along the width direction of the second main abutting part; and/or the number of the groups of groups,
at least one second main horizontal mounting hole is formed in the second auxiliary abutting part in a penetrating manner along the width direction of the second auxiliary abutting part; the method comprises the steps of,
at least one auxiliary horizontal mounting hole is formed in the end portion of the sensor along the width direction of the sensor, and the mounting piece is arranged in the first main horizontal mounting hole and/or the second main horizontal mounting hole and the auxiliary horizontal mounting hole in a penetrating mode, so that the sensor is fixed on the clamping piece along the horizontal direction.
Optionally, a main clamping portion is further disposed on a side of the main clamping member facing the auxiliary clamping member, and the main clamping portion is located on a side of the first main abutting portion facing away from the second main abutting portion;
the side, facing the main clamping piece, of the auxiliary clamping piece is also provided with an auxiliary clamping part, and the auxiliary clamping part is positioned at one side, deviating from the second auxiliary abutting part, of the first auxiliary abutting part; and, in addition, the processing unit,
the main clamping portion, the auxiliary clamping portion, the first main abutting portion and the first auxiliary abutting portion form a containing cavity for containing the rail.
Optionally, an anti-slip layer is arranged on the inner side wall of the accommodating cavity.
Optionally, at least one dismounting portion is further provided on a side of the auxiliary clamping member facing away from the main clamping member, and the clamping member is dismounted from the rail through the dismounting portion.
Optionally, the sensor comprises a housing, wherein a substrate is arranged in a central area of the housing, and a sensitive grid is arranged on the substrate; the method comprises the steps of,
and a chip is further arranged in the shell and connected with the sensitive grid through a lead wire so as to transmit pressure signals of the track.
The invention provides a track overload and unbalanced load detection device, and belongs to the technical field of track detection. The device comprises a clamp and a sensor clamped between the clamps, wherein the clamp comprises two clamping pieces which are oppositely arranged; each clamping piece comprises a main clamping piece and a secondary clamping piece embedded with the main clamping piece, the top end areas of the main clamping piece and the secondary clamping piece are used for installing a rail, the side wall of the opposite side of each main clamping piece along the width direction of the side wall of each main clamping piece is provided with an installation part, and each installation part is connected with two ends of a sensor, so that the sensor is located below the rail to transmit pressure signals of the rail. The detection device does not damage the track and the track bed at the installation site, and the clamp is directly clamped on the track, and the detection device has better stability through the fastening piece due to the fact that the two symmetrical clamping pieces are arranged and the fastening holes are respectively arranged in the horizontal direction and the vertical direction, so that the error of stress change is reduced, and the precision of the stress change is improved.
Drawings
FIG. 1 is a schematic diagram of a track overload and unbalanced load detection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a main clamping member of a clamp according to another embodiment of the present invention;
FIG. 3 is a schematic view of a sub-clamp in a clamp according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a sensor according to another embodiment of the present invention;
fig. 5 is a schematic structural view of a sensor body according to another embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to the drawings and detailed description for the purpose of better understanding of the technical solution of the present invention to those skilled in the art. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the present invention provides a track overload and unbalanced load detection device, which includes a clamp and a sensor 200 interposed between the clamps, wherein the clamp includes two clamps 100 disposed opposite to each other; each clamping member 100 includes a main clamping member 110 and a sub clamping member 120 embedded with the main clamping member 110; the top end regions of the main clamping member 110 and the sub clamping member 120 are used for installing rails, and each of the opposite sides of the main clamping member 110 is provided with an installation portion 130 on a side wall in the width direction thereof, and each 130 installation portion is connected with both ends of the sensor 200 such that the sensor 200 is positioned under the rails to transmit pressure signals of the rails.
The detection device of this embodiment clamps the track through the upper end of two clamping pieces of bilateral symmetry, and the lower extreme is installed the sensor between two clamping pieces to make two clamping pieces fix along orbital length direction. The sensor is located below the rail, so that when a truck passes through the rail, the rail deforms, the clamp deforms accordingly, stress acts on two ends of the sensor, and signals are output through the sensitive grid and the chip inside the sensor 200 as shown in fig. 4 and 5.
The detection device of the embodiment does not damage the track and the track bed of the installation site, and the clamp is directly clamped on the track, and the whole clamp has good stability due to the symmetrical two clamping pieces, so that the error of stress change is reduced, and the precision of the stress change is improved.
In this embodiment, the manner of embedding and fixing the main clamping member and the sub clamping member is not particularly limited, and a plurality of clamping portions may be provided to be embedded in each other, or some fasteners may be used to fasten the two members.
For the present embodiment, the inventor has tried many times to provide three clamping portions on the main clamping member and the sub clamping member of each clamping member in order not to damage the track and the track bed at the installation site, and to provide convenience in disassembly, high stability, etc., and specifically, as shown in fig. 1 to 3, the main clamping member 110 is provided with a first main abutment portion 111, a second main abutment portion 112, and a third main abutment portion 113 in this order along the thickness direction (height direction) thereof toward one side of the sub clamping member 120. And, the sub-clip 120 is provided with a first sub-abutment 121, a second sub-abutment 122, and a third sub-abutment 123 in this order in the thickness direction (height direction) thereof toward one side of the main clip 110. The second auxiliary abutting portion 122 is embedded between the first main abutting portion 111 and the third main abutting portion 113, so that the main clamping member and the auxiliary clamping member are embedded with each other.
In this embodiment, the length of each main abutment portion and each sub abutment portion is not specifically limited, so long as it is possible to achieve that the second sub abutment portion is fitted between the first main abutment portion and the third main abutment portion, that is, the lengths of the first main abutment portion and the third main abutment portion are larger than those of the second main abutment portion for the main clamp, and the lengths of the first sub abutment portion and the third sub abutment portion are smaller than those of the second sub abutment portion for the sub clamp, so that the longer second sub abutment portion is fitted between the first main abutment portion and the third main abutment portion, and the first main abutment portion and the third main abutment portion are respectively connected and fixed with the first sub abutment portion and the third sub abutment portion. The relative lengths of the first main abutment and the third main abutment, and the first sub abutment and the third sub abutment are not particularly limited, and may be the same or different.
It should be further noted that, in the present embodiment, the end portion of the second main abutment portion is in a curved shape, which is concavely curved toward the main clamping member side, and correspondingly, the end portion of the second auxiliary abutment portion is convexly curved toward the main clamping member side, so that the second auxiliary abutment portion is closely attached to the second main abutment portion.
In some embodiments, in order to further fasten the primary clamping member and the secondary clamping member, fastening holes may be further provided on each clamping portion, specifically, as shown in fig. 1 to 3, at least one primary horizontal fastening hole 111a is provided on a side of the first primary abutment portion 111 facing the first secondary abutment portion 121. And, the first sub-abutment portion 121 is perforated with at least one sub-horizontal fastening hole 121a along its length direction, and the main horizontal fastening hole 111a communicates with the sub-horizontal fastening hole 121a, so that fasteners are perforated in the main horizontal fastening hole and the sub-horizontal fastening hole to achieve fixing of the clip on the rail along the horizontal direction.
The main horizontal fastening hole may or may not be provided by penetrating, and the fastening member may be provided by penetrating the auxiliary horizontal fastening hole and performing a connecting fastening function with the main horizontal fastening hole.
In other embodiments, in addition to fixing the clamping member in the horizontal direction, it may be fixed in the vertical direction, specifically, as shown in fig. 1 to 3, the third main abutment 113 is perforated with at least one main vertical fastening hole 113a in the thickness direction (height direction) thereof; and, the second sub-abutment portion 122 is perforated with at least one sub-vertical fastening hole 122a in a thickness direction (height direction) thereof, and the main vertical fastening hole 113a is communicated with the sub-vertical fastening hole 122a, so that fasteners are perforated in the main vertical fastening hole and the sub-vertical fastening hole to achieve fixing of the clip on the rail in the vertical direction, so that the clip has better stability.
It should be noted that, in this embodiment, the number of the horizontal fastening holes and the vertical fastening holes is not specifically limited, and may be one, two or three, and may be set according to actual needs, and as illustrated in fig. 2 and 3, two main horizontal fastening holes 111a and two sub horizontal fastening holes 121a, and two main vertical fastening holes 113a and two sub vertical fastening holes 122a are provided in this example, respectively.
In this embodiment, the fastener is not particularly limited as long as it can be engaged with the fastening hole, and a bolt, a screw, or the like may be used. For example, when the horizontal fastening holes are provided as bolt holes, the fastening members are selected as corresponding bolts, and when the vertical fastening holes are provided as screw holes, the fastening members are selected as corresponding screws. Of course, it will be apparent to those skilled in the art that other fasteners may be selected according to actual needs, and the comparison is not particularly limited.
The main clamping piece and the auxiliary clamping piece are combined in an embedded mode and are respectively clamped on the rail, and the main clamping piece and the auxiliary clamping piece are fastened in the horizontal fastening holes through the two screws, so that the two parts in the horizontal direction are tightly connected together. And 2 vertical threaded holes are also formed below the embedded part and used for fixing the left component and the right component, so that the left component and the right component can be tightly connected and fixed in the vertical direction.
Further, to clamp the rail, in order to provide better stability of the rail on the clamp, in some embodiments, a receiving cavity is further provided for receiving the rail, and as illustrated in fig. 1 to 3, an exemplary side of the main clamping member 110 facing the auxiliary clamping member 120 is further provided with a main clamping portion 114, where the main clamping portion 114 is located on a side of the first main abutting portion 111 facing away from the second main abutting portion 112. Correspondingly, a side of the auxiliary clamping member 120 facing the main clamping member 110 is further provided with an auxiliary clamping portion 124, and the auxiliary clamping portion 124 is located at a side of the first auxiliary abutting portion 121 facing away from the second auxiliary abutting portion 122. That is, the main clamping portion and the auxiliary clamping portion of the present embodiment are located at the top end of the clamping member and are disposed opposite to each other. The main engaging portion 114, the sub engaging portion 124, the first main abutting portion 111, and the first sub abutting portion 121 form a housing chamber for housing the rail so that the rail is not easily separated from the jig.
Still further, in other preferred embodiments, as shown in fig. 1 to 3, the inner side wall of the receiving chamber is provided with an anti-slip layer 140 to increase friction between the rail and the jig, so that the rail has better stability in the jig.
The anti-slip layer of this embodiment may be provided on the upper surfaces of the first main contact portion and the first sub contact portion, or may be provided on the lower surfaces of the main engagement portion and the sub engagement portion, or may be provided simultaneously in other embodiments. And, the side wall of the main clamping member between the main clamping portion and the first main abutting portion may be provided, and the side wall of the sub clamping member between the sub clamping portion and the first sub abutting portion may be provided. That is, the inner side wall of the accommodating chamber may be partially provided with the anti-slip layer, or may be entirely provided with the anti-slip layer, which is not particularly limited.
It should be further noted that, in some embodiments, as shown in fig. 1 to 3, the anti-slip layer 140 may use a saw-tooth wave, that is, a saw-tooth wave surface that contacts the rail, to increase friction between the rail and the clip, so as to make the clip more fastened and stable to the rail.
It will be appreciated that the shape of the receiving cavity formed above is the same as the shape of the track received to receive the track therein.
Optionally, the inventor has provided a dismounting portion in other embodiments, in view of convenience of maintenance and dismounting, and as shown in fig. 1, the side of the sub-clamping member 120 facing away from the main clamping member 110 is further provided with at least one dismounting portion 150, by which dismounting portion 150 the clamping member is dismounted from the rail.
In the present embodiment, the detaching portion is not particularly limited, and may be provided as a tab to pull the sub-abutment portion out of the rail, or may be provided as a detaching hole, for example. As shown in fig. 1, two dismounting holes 150 are formed on the side of the sub-clamping member 120 away from the main clamping member 110, the two dismounting holes 150 are symmetrically formed on two sides of the sub-horizontal fastening hole 121a, and the main clamping member and the sub-clamping member are ejected out of the dismounting holes by bolts, so that the problem that the long-time clamp and the rail rust are difficult to dismount is solved, and meanwhile, damage to the sensor caused by the knocking hammer during dismounting is prevented.
Further, as shown in fig. 4 and 5, the sensor of the present embodiment includes a sensor body 210, wherein the sensor body 210 includes a housing, and a central region of the housing is provided with a strain measurement unit 211 and a chip connected to the strain measurement unit 211 through a wire to transmit a pressure signal of the rail.
Specifically, as shown in fig. 5, a central region of the housing is provided with a first receiving groove 212 for receiving the strain measuring unit 211, and one side of the housing is provided with a second receiving groove 213 for receiving the chip 213. And, the other side of the housing is further provided with a first lead-out hole 214 to lead out the lead from the lead-out hole to the outside.
It should be noted that, the strain measurement unit of this embodiment includes a substrate, a sensitive grating disposed on the substrate, the sensitive grating fixed on the substrate by an adhesive, a protective cover layer adhered on the sensitive grating, and a lead wire connected to the sensitive grating for outputting signals.
It should be noted that, in this embodiment, the entire processing of the substrate is a monolithic material, so as to reduce the influence of the connection between materials on the stress variation, thereby improving the detection accuracy of the sensor, and the substrate should ensure that the strain on the component is accurately transferred to the sensitive grid.
In the embodiment, the dynamic axle weight of each carriage moving in the track is measured by an intelligent sensor. The method is characterized in that various cars in the coming and going direction are identified, the loading state of each train car after passing is judged, analyzed and calculated, overload and overweight data and unbalanced data are obtained, the data are uploaded to a duty room, data are provided for a manager, and the sensor data have good stability and good repeatability and linearity.
Further, in order to cooperate with the mounting portion on the jig, the sensor of this embodiment is further provided with a mounting member. Specifically, as shown in fig. 4 and 5, the sensor body 210 is provided with a first mounting member 220 and a second mounting member 230 symmetrically on both sides; wherein the first mounting member 220 is located at a side of the housing adjacent to the first lead-out hole 214, and the second mounting member 230 is located at a side of the housing adjacent to the second receiving groove 213.
It should be understood that, in order to extract the electrical signal, a lead-out hole should be further provided in the mounting member, and in particular, as shown in fig. 4, a second lead-out hole 221 is provided in the first mounting member 220, and the second lead-out hole 221 communicates with the first lead-out hole 214. Of course, in other embodiments, the second lead-out hole 231 may be provided on the second mounting member 230, or the lead-out holes may be provided on both mounting members to output signals from both sides of the sensor body, which is not particularly limited.
Further, a circuit board (not shown in the figure) is further disposed on the back of the first mounting member in this embodiment, that is, a circuit board is disposed on the opposite side of the second lead-out hole, and the circuit board is connected to the sensitive gate so as to transmit the pressure signal induced by the sensitive gate to the circuit board, and then the circuit board is connected to the chip through the lead wire so as to transmit the electrical signal processed by the circuit board to the chip, and the chip is further threaded through the lead wire in the first lead-out hole and the second lead-out hole so as to output the signal to the outside.
Furthermore, the connection mode between the sensor and the clamp in this embodiment is as follows: as shown in fig. 1 to 5, the mounting portion 130 of the clip of the present embodiment is located on one side of the third main abutment portion 113 in the width direction (horizontal direction) thereof. And, the mounting part 130 is provided with at least one main vertical mounting hole 131 along the thickness direction thereof, the first mounting member 220 at one side of the sensor body 210 is provided with at least one sub vertical mounting hole 222 along the thickness direction thereof, and the second mounting member 230 at the other side of the sensor body 210 is provided with at least one sub vertical mounting hole 232 along the thickness direction thereof, so that the mounting members are penetrated in the main vertical mounting hole and the sub vertical mounting hole to fix both sides of the sensor body on the mounting parts of the two oppositely arranged clamping members along the vertical direction respectively. That is, the third main abutment side wall of the present embodiment is provided with a mounting portion in which a main vertical mounting hole is provided in a vertical direction to mount the sensor between two oppositely disposed clamps.
It should be understood that, in order to further fix the sensor, it is also possible to fix the sensor in a horizontal direction, for example, as shown in fig. 1 to 5, the second main abutment 112 is perforated with at least one first main horizontal mounting hole 112a along a width direction thereof, and, of course, in other embodiments, the second sub abutment 122 is perforated with at least one second main horizontal mounting hole 122b along a width direction thereof, corresponding to which the first mounting member 220 on one side of the sensor main body 210 is perforated with at least one sub horizontal mounting hole 223 along a width direction thereof, and the second mounting member 230 on the other side of the sensor main body 210 is perforated with at least one sub horizontal mounting hole (not shown) along a width direction thereof, so that the mounting members are perforated in the first main horizontal mounting hole or the second main horizontal mounting hole and the sub horizontal mounting hole, respectively, to fix both sides of the sensor main body on the mounting portions of two oppositely disposed clamping members along a horizontal direction. Of course, in other embodiments, the first main horizontal mounting hole 112a and the second main horizontal mounting hole 122b may be provided at the same time to achieve a better fastening effect.
It should be noted that, in this embodiment, the number of the main vertical mounting holes and the first main horizontal mounting holes, the second main horizontal mounting holes and the auxiliary vertical mounting holes, and the auxiliary horizontal mounting holes is not particularly limited, and as illustrated in fig. 1 to 5, in this example, four main vertical mounting holes 131 are provided on the mounting portion 130, one first main horizontal mounting hole 112a is provided on the second main abutment portion 112, and one second main horizontal mounting hole 122b is provided on the second auxiliary abutment portion 122, correspondingly, four auxiliary vertical mounting holes 222 and two auxiliary horizontal mounting holes 223 are provided on the first mounting member 220, and four auxiliary vertical mounting holes 232 and two auxiliary horizontal mounting holes are also provided on the second mounting member 230.
In the present embodiment, the mounting member is not particularly limited as long as the mounting member can be engaged with the mounting holes to mount the sensor on the holder, and for example, when the mounting holes are bolt holes, the mounting member is selected as the corresponding bolts. Specifically, the four main vertical mounting holes and the first main horizontal mounting hole are used for being connected with the bolt hole of the sensor, and the second main horizontal mounting hole is used for being connected with the bolt hole of the sensor port so as to mount the first mounting piece of the sensor on one side of one clamping piece and the second mounting piece of the sensor on one side of the other clamping piece, so that the sensor main body is clamped between the two clamping pieces.
The main clamping piece and the auxiliary clamping piece of the embodiment are provided with 6 threaded holes, and the threaded holes are specially used for installing the sensor, so that the stability of the sensor is improved, and the sensor is completely fastened with the whole clamp. When a truck passes on the rail, the rail can deform, the clamp deforms along with the rail, stress acts on the two ends of the sensor, and the sensor outputs signals.
Based on the structure of the detection device, the specific installation process of the detection device of this embodiment is as follows: the main clamping pieces are fixed with the first mounting piece and the second mounting piece on the sensor through the upper main vertical mounting holes, the lower main vertical mounting holes, the 4 auxiliary vertical mounting holes and the corresponding screw rods, after the sensor is fixed, the main clamping pieces are clamped on the rail, then the auxiliary clamping pieces are clamped on the rail and are embedded with the corresponding main clamping pieces, and the main clamping pieces are fixed with the rail through the upper fastening holes, the lower fastening holes, the left fastening holes, the right fastening holes and the corresponding screw rods. And finally, the left end and the right end of the clamp are respectively connected with the first mounting piece and the second mounting piece on two sides of the sensor main body through the first main horizontal mounting hole, the second main horizontal mounting hole and the corresponding screw rod, so that a reinforcing effect is achieved, and the mounting of the track overload and unbalanced load detection device is completed.
It should be further noted that, the mounting portion and the clamping portion of the embodiment may be integrally formed with other abutting portions of the clamping member, that is, the whole material is processed, so that the influence of connection between materials on stress variation is reduced, and therefore the detection precision of the sensor is improved.
Compared with the prior art, the detection device comprises the clamps and the sensors clamped between the clamps, wherein the clamps comprise two clamping pieces which are bilaterally symmetrical, the rail is clamped by the upper ends of the two clamping pieces, and the sensors are arranged between the two clamping pieces by the lower ends of the two clamping pieces, so that the two clamping pieces are fixed along the length direction of the rail. The sensor is positioned below the rail, so that when a truck passes through the rail, the rail deforms, the clamp deforms along with the rail, stress acts on two ends of the sensor, and signals are output through the sensor. The fixture disclosed by the invention has the advantages of simple structure, great reduction in installation workload, convenience in disassembly and easiness in maintenance. The reliability is high, has reduced the installation and has dismantled the cost to and, this anchor clamps do not damage track and the railway roadbed of mounting place, directly press from both sides on the track can, owing to have two clamping pieces of symmetry for whole detection device has better steadiness, has reduced the error of stress variation, thereby has improved the precision of sensor stress variation. The sensor is an intelligent sensor, and the dynamic wheel axle weight of each carriage moving in the track is measured. The method comprises the steps of identifying various cars in the past, judging, analyzing and calculating to summarize the loading state of each train car after passing, obtaining overload and overweight data and unbalanced load data, uploading the data to a duty room, and providing data for a manager.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present invention, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the invention, and are also considered to be within the scope of the invention.
Claims (7)
1. The track overload and unbalanced load detection device is characterized by comprising clamps and sensors clamped between the clamps; the clamp comprises two clamping pieces which are oppositely arranged, wherein each clamping piece comprises a main clamping piece and a secondary clamping piece which is embedded with the main clamping piece;
the main clamping part, the first main abutting part, the second main abutting part and the third main abutting part are sequentially arranged on one side of the main clamping part, which faces the auxiliary clamping part, along the thickness direction of the main clamping part; the method comprises the steps of,
the auxiliary clamping piece is provided with an auxiliary clamping part, a first auxiliary abutting part, a second auxiliary abutting part and a third auxiliary abutting part in sequence along the thickness direction of the auxiliary clamping piece towards one side of the main clamping piece; wherein,,
the second auxiliary abutting part is embedded between the first main abutting part and the third main abutting part; the main clamping part, the auxiliary clamping part, the first main abutting part and the first auxiliary abutting part form a containing cavity for containing the track;
the side walls of the opposite sides of each main clamping piece along the width direction are provided with mounting parts, the mounting parts are positioned at one side of the third main abutting part along the width direction, each mounting part is connected with two ends of the sensor, so that the sensor is positioned below the rail, when a truck passes through the rail, the rail deforms, the clamp deforms along with the rail, stress acts on the two ends of the sensor, and pressure signals of the rail are transmitted through a sensitive grid and a chip inside the sensor;
the mounting part, the main clamping part, the first main abutting part, the second main abutting part and the third main abutting part are integrally formed;
the side of the auxiliary clamping piece, which is away from the main clamping piece, is also provided with at least one dismounting hole through which the clamping piece is dismounted from the rail.
2. The device according to claim 1, wherein at least one main horizontal fastening hole is opened on a side of the first main abutment portion facing the first sub abutment portion; the method comprises the steps of,
the first auxiliary abutting part is provided with at least one auxiliary horizontal fastening hole in a penetrating mode along the length direction of the first auxiliary abutting part, and the main horizontal fastening hole is communicated with the auxiliary horizontal fastening hole, so that a fastening piece is arranged in the main horizontal fastening hole and the auxiliary horizontal fastening hole in a penetrating mode, and the clamping piece is fixed on the track along the horizontal direction.
3. The device according to claim 1, wherein the third main abutment is perforated in its thickness direction with at least one main vertical fastening hole; the method comprises the steps of,
the second auxiliary abutting part is provided with at least one auxiliary vertical fastening hole in a penetrating mode along the thickness direction of the second auxiliary abutting part, and the main vertical fastening hole is communicated with the auxiliary vertical fastening hole, so that a fastening piece is arranged in the main vertical fastening hole and the auxiliary vertical fastening hole in a penetrating mode, and the clamping piece is fixed on the track along the vertical direction.
4. A device according to any one of claims 1 to 3, wherein the mounting portion is provided with at least one main vertical mounting hole in its thickness direction; the method comprises the steps of,
at least one auxiliary vertical mounting hole is formed in the end portion of the sensor along the thickness direction of the sensor, and the mounting piece is arranged in the main vertical mounting hole and the auxiliary vertical mounting hole in a penetrating mode, so that the sensor is fixed on the clamping piece along the vertical direction.
5. The device according to claim 4, wherein the second main abutment is provided with at least one first main horizontal mounting hole penetrating in a width direction thereof; and/or the number of the groups of groups,
at least one second main horizontal mounting hole is formed in the second auxiliary abutting part in a penetrating manner along the width direction of the second auxiliary abutting part; the method comprises the steps of,
at least one auxiliary horizontal mounting hole is formed in the end portion of the sensor along the width direction of the sensor, and the mounting piece is arranged in the first main horizontal mounting hole and/or the second main horizontal mounting hole and the auxiliary horizontal mounting hole in a penetrating mode, so that the sensor is fixed on the clamping piece along the horizontal direction.
6. The device of claim 1, wherein the inner side wall of the receiving chamber is provided with an anti-slip layer.
7. A device according to any one of claims 1 to 3, wherein the sensor comprises a housing, a central region of the housing being provided with a substrate, the substrate being provided with a sensitive grating thereon; the method comprises the steps of,
and a chip is further arranged in the shell and connected with the sensitive grid through a lead wire so as to transmit pressure signals of the track.
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| US6674023B2 (en) * | 2001-11-13 | 2004-01-06 | Alan Paine | Method and apparatus for weighing railroad cars |
| CN2748880Y (en) * | 2004-09-30 | 2005-12-28 | 王行方 | Steel rail embedded plate sensor module |
| CN109374160A (en) * | 2018-11-27 | 2019-02-22 | 安徽华立远望智能科技有限公司 | A kind of rail stress sensor for the detection of rail truck Super leaning load |
| CN110220621A (en) * | 2019-07-20 | 2019-09-10 | 安徽华立远望智能科技有限公司 | A kind of rail head of rail formula strain gauge for the detection of rail truck Super leaning load |
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| CN214372867U (en) * | 2021-03-02 | 2021-10-08 | 江苏泰力机械科技有限公司 | Track overload and unbalance loading detection device |
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