CN111595425A - Steel rail bracket type shear sensor - Google Patents
Steel rail bracket type shear sensor Download PDFInfo
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- CN111595425A CN111595425A CN202010565275.5A CN202010565275A CN111595425A CN 111595425 A CN111595425 A CN 111595425A CN 202010565275 A CN202010565275 A CN 202010565275A CN 111595425 A CN111595425 A CN 111595425A
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- Prior art keywords
- sensor
- rail
- steel rail
- support
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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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/02—Arrangements of bearings
- G01G21/08—Bearing mountings or adjusting means therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
Abstract
The invention discloses a steel rail bracket type shear sensor which comprises a main bracket, an auxiliary bracket and a sensor body, wherein the main bracket and the auxiliary bracket are respectively arranged on two sides of a steel rail; the sensor body includes sensor end, strain roof beam and sensor paster, and the sensor end can be dismantled with the main support and be connected, and two sensor ends are connected to the strain roof beam, and the sensor paster sets up on the strain roof beam, and strain roof beam and rail parallel arrangement, when the strain roof beam received rail effort deformation, the sensor paster can be the signal of telecommunication with rail deformation conversion. When the rail is stressed and deformed, the rail deforms the strain beam through the main support, and then the deformation of the rail is converted into an electric signal through the sensor patch on the strain beam.
Description
Technical Field
The invention relates to the technical field of railway transportation detection equipment and peripheral supporting facilities thereof, in particular to a steel rail bracket type shear sensor.
Background
A steel rail shear force sensor (hereinafter referred to as a shear force sensor) is mainly applied to a railway freight car overload and unbalance loading detection device and an automatic rail weighbridge without rail break. The most similar to the present invention is a perforated shear sensor, as shown in fig. 1, a pressure sensor and a shear sensor are used in combination on the current railway freight car overload and unbalance loading detection device and the automatic railroad track scale without rail break, as shown in fig. 2, the pressure sensor and the shear sensor output waveforms are synthesized and then are processed in a related way. At present, the shear force sensors used by the railway freight car overload and unbalanced load detection device and the automatic rail weighbridge without rail break all need to drill holes and ream holes at the rail web part of a steel rail, and the mounting holes are deformed by the wheel weight of a railway vehicle through the tight fit between the shear force sensors and the mounting holes, so that the shear force sensors are extruded, and the shear stress of corresponding positions is measured. The steel rail is damaged by drilling holes in the steel rail, and the measuring accuracy of the shear sensor is directly influenced by the position, the size and the roughness of the drilled holes and the matching degree between the drilled holes and the shear sensor. The railway freight car overload and unbalance loading detection device is mostly installed on a railway main track, drilling installation operation is carried out on the railway main track manually, the construction risk coefficient is high, the requirements on the accuracy and the standardization of installation operation are high, the operation difficulty is high, once the drilling fails, a steel rail needs to be replaced, and the cost is high. Along with the improvement of requirements of speed increase, heavy load and the like of railways, higher requirements are provided for installation, replacement, measurement and the like of the shear sensor.
In the prior art, a railway freight car overload and unbalance loading detection device and a shear sensor applied to an automatic rail weighbridge without rail break need to be installed after a steel rail web is punched, and potential unsafe factors exist along with the acceleration and the load capacity improvement of railway transportation; the punching operation needs to be carried out on the railway freight car overload and unbalance loading detection device and the automatic rail weighbridge without rail breaking, the punching needs professional equipment and is long in time consumption, special skylight points need to be applied for the operation, particularly, the railway freight car overload and unbalance loading detection device is mostly installed on a railway main line, and the construction risk coefficient is high; in addition, the measurement accuracy of the shear sensor is directly influenced by the punching position, size, roughness and the matching degree between the hole position and the shear sensor, the requirements on the accuracy and the normalization of installation operation are high, once the punching fails, the steel rail needs to be replaced, the operation is not easy, and the workload is large.
Therefore, how to change the current situation that in the prior art, the steel rail shear sensor needs to be installed on the steel rail to be perforated, which results in the increase of the danger coefficient of railway transportation and the great difficulty of installation and construction, becomes a problem to be solved urgently by technical personnel in the field.
Disclosure of Invention
The invention aims to provide a steel rail bracket type shear sensor, which solves the problems in the prior art, omits the operation of punching on a steel rail, ensures the rigidity of the steel rail and reduces the installation and construction difficulty of the shear sensor.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a steel rail bracket type shear sensor which comprises a main bracket, an auxiliary bracket and a sensor body, wherein the main bracket and the auxiliary bracket are respectively arranged on two sides of a steel rail, the main bracket is detachably connected with the auxiliary bracket, the sensor body is arranged on one side of the main bracket, which is close to the steel rail, and the main bracket is arranged on one side of the steel rail, which is far away from a railway track; the sensor body comprises sensor ends, a strain beam and sensor patches, the sensor ends are detachably connected with the main support, the strain beam is connected with the two sensor ends, the sensor patches are arranged on the strain beam, the strain beam is arranged in parallel with the steel rail, and when the strain beam deforms under the action of the steel rail, the sensor patches can convert the deformation of the steel rail into electric signals.
Preferably, the main bracket and the auxiliary bracket are respectively connected with the bottom of the steel rail in an inserting manner.
Preferably, the main bracket and the auxiliary bracket are connected through a bracket mounting bolt, the bracket mounting bolt is arranged at the bottom of the steel rail, a gap is formed between the bracket mounting bolt and the steel rail, and a lock washer is arranged at the bracket mounting bolt.
Preferably, an installation position is arranged on one side, close to the steel rail, of the main support, the cross section of the installation position is trapezoidal, the area of an opening of the installation position is larger than that of the bottom surface of the installation position, and the sensor head is provided with an inclined surface matched with the installation position.
Preferably, the sensor head is connected to the main support with a sensor body bolt.
Preferably, the sensor body further comprises a wire hole, the wire hole penetrates through the strain beam and the two sensor heads.
Preferably, the number of the sensor patches is one, and the sensor patches are located on a centerline of the strain beam.
Preferably, the number of the sensor patches is two, and the two sensor patches are symmetrically arranged by taking the center line of the strain beam as an axis.
Preferably, the number of the main bracket, the secondary bracket and the sensor body is two, and two groups of the main bracket, the secondary bracket and the sensor body are arranged on two opposite sides of the two steel rails.
Compared with the prior art, the invention has the following technical effects: the steel rail bracket type shear sensor comprises a main bracket, an auxiliary bracket and a sensor body, wherein the main bracket and the auxiliary bracket are respectively arranged on two sides of a steel rail, the main bracket is detachably connected with the auxiliary bracket, the sensor body is arranged on one side of the main bracket close to the steel rail, and the main bracket is arranged on one side of the steel rail far away from a railway track; the sensor body includes sensor end, strain roof beam and sensor paster, and the sensor end can be dismantled with the main support and be connected, and two sensor ends are connected to the strain roof beam, and the sensor paster sets up on the strain roof beam, and strain roof beam and rail parallel arrangement, when the strain roof beam received rail effort deformation, the sensor paster can be the signal of telecommunication with rail deformation conversion. When the steel rail bracket type shear sensor is used, the main bracket and the auxiliary bracket are connected with a steel rail, the sensor body is fixed on the main bracket and comprises a strain beam arranged in parallel with the steel rail, when the steel rail deforms under stress, the steel rail deforms through the main bracket, and then the deformation of the steel rail is converted into an electric signal through the sensor patch on the strain beam. The steel rail bracket type shear sensor does not need to be punched on a steel rail, does not damage the steel rail structure, ensures the steel rail rigidity, and improves the safety coefficient of the steel rail; special punching equipment is not needed on site, the mounting and construction difficulty of the shear sensor is reduced, and the work burden of operators is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic diagram of a prior art perforated shear sensor;
FIG. 2 is a schematic view of a railway freight car overload and unbalance loading detection device in the prior art;
FIG. 3 is a schematic front view of a mounting structure for a rail-mounted shear sensor in accordance with the present invention;
FIG. 4 is a side view of a partial structure of a rail-mounted shear sensor of the present invention;
FIG. 5 is a side view of a portion of the structure of another embodiment of a rail-mounted shear sensor of the present invention;
the sensor comprises a hole punching type shear sensor 1 in the prior art, a pressure sensor 2 in the prior art, a main support 3, an auxiliary support 4, a sensor body 5, a sensor end 6, a strain beam 7, a sensor patch 8, a support mounting bolt 9, a check washer 10, a sensor body bolt 11, a wiring hole 12 and a steel rail 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a steel rail bracket type shear sensor, which solves the problems in the prior art, omits the operation of punching on a steel rail, ensures the rigidity of the steel rail and reduces the installation and construction difficulty of the shear sensor.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 3-5, fig. 3 is a schematic front view of an installation structure of a rail bracket type shear sensor of the present invention, fig. 4 is a schematic side view of a partial structure of a rail bracket type shear sensor of the present invention, and fig. 5 is a schematic side view of a partial structure of another embodiment of a rail bracket type shear sensor of the present invention.
The invention provides a steel rail bracket type shear sensor which comprises a main bracket 3, an auxiliary bracket 4 and a sensor body 5, wherein the main bracket 3 and the auxiliary bracket 4 are respectively arranged at two sides of a steel rail 13, the main bracket 3 is detachably connected with the auxiliary bracket 4, the sensor body 5 is arranged at one side of the main bracket 3 close to the steel rail 13, and the main bracket 3 is arranged at one side of the steel rail 13 far away from a railway track; sensor body 5 includes sensor end 6, strain roof beam 7 and sensor paster 8, and sensor end 6 can be dismantled with main support 3 and be connected, and two sensor ends 6 are connected to strain roof beam 7, and sensor paster 8 sets up on strain roof beam 7, and strain roof beam 7 and rail 13 parallel arrangement, and when strain roof beam 7 received 13 effort deformations of rail, sensor paster 8 can be with 13 deformation conversion of rail into the signal of telecommunication.
When the steel rail bracket type shear sensor is used, the main bracket 3 and the auxiliary bracket 4 are connected with the steel rail 13, the sensor body 5 is fixed on the main bracket 3, the sensor body 5 comprises the strain beam 7 which is arranged in parallel with the steel rail 13, when the steel rail 13 deforms under stress, the steel rail 13 enables the strain beam 7 to deform through the main bracket 3, and then the deformation of the steel rail 13 is converted into an electric signal through the sensor patch 8 on the strain beam 7. According to the steel rail bracket type shear sensor, holes do not need to be drilled on the steel rail 13, the structure of the steel rail 13 is not damaged, the rigidity of the steel rail 13 is ensured, and the safety coefficient of a railway track is improved; special punching equipment is not required to be equipped on the site, the mounting and construction difficulty of the shear sensor is reduced, and the work burden of operators is reduced. In addition, in practical application, the length of the strain beam 7 can be properly increased, so that the strain beam 7 is convenient to capture the tiny elastic deformation of the steel rail 13, and the accuracy of data acquisition is improved.
The main support 3 and the auxiliary support 4 are connected with the bottom of the steel rail 13 in an inserting mode respectively, the inserting connection is convenient to operate, and the installation convenience of the main support 3 and the auxiliary support 4 is improved.
In order to further improve the main support 3, the firm in connection degree of assistant support 4 and rail 13, main support 3 passes through support construction bolt 9 with assistant support 4 and links to each other, support construction bolt 9 passes main support 3 and links to each other with assistant support 4, avoid main support 3, assistant support 4 dislocation, support construction bolt 9 sets up in the bottom of rail 13, the clearance has between support construction bolt 9 and the rail 13, support construction bolt 9 department sets up lock washer 10, further improve device structural stability, avoid railway transport vehicle to travel and cause rail 13 vibrations, thereby influence main support 3, the connection performance of assistant support 4, ensure that sensor body 5 can normally work.
Specifically, one side of the main support 3 close to the steel rail 13 is provided with an installation position, the cross section of the installation position is trapezoidal, the opening area of the installation position is larger than the bottom surface area of the installation position, the sensor head is provided with an inclined plane matched with the installation position, and the main support 3 and the sensor body 5 adopt wedge-shaped contact surfaces, so that the connection stability and the stress can be further ensured to be smoothly transmitted.
Correspondingly, the sensor end head 6 is connected with the main bracket 3 by using the sensor body bolt 11, so that the disassembly and the assembly are convenient, the replacement and the maintenance of operators are convenient, and the labor burden of the operators is reduced.
More specifically, the sensor body 5 further comprises a wiring hole 12, so that the wiring is convenient to arrange, the interference between the wiring and other parts of the device is avoided, the exposed aging of the wiring can also be avoided, the safety coefficient of the device is improved, and the wiring hole 12 penetrates through the strain beam 7 and the two sensor ends 6.
It should be further emphasized that, when the number of the sensor patches 8 is one, the sensor patches 8 are located on the center line of the strain beam 7, and the sensor can be applied to a perforated shear sensor used for railway freight car overload detection and rail break-free railroad track scale. Besides, the number of the sensor patches 8 can be two, the two sensor patches 8 are symmetrically arranged by taking the center line of the strain beam 7 as an axis, and when the two sensor patches 8 are arranged, the sensor patches can be independently applied to railway wagon overload and unbalanced load detection. By changing the number of the sensor patches 8, different use requirements are met, and the flexibility and the adaptability of the device are improved.
Furthermore, the number of the main supports 3, the auxiliary supports 4 and the sensor bodies 5 is two, and the two groups of the main supports 3, the auxiliary supports 4 and the sensor bodies 5 are arranged on two opposite sides of the two steel rails 13.
When the steel rail bracket type shear sensor is used, rust in a rail bottom mounting area of a steel rail 13 is removed, the surface is kept smooth, flat and free of burrs, the anti-loosening gasket 10 is arranged at the head of the bracket mounting bolt 9, the main bracket 3 is arranged on the outer side of the rail bottom of the steel rail 13, the auxiliary bracket 4 is arranged on the inner side of the rail bottom of the steel rail 13, the main bracket 3 and the auxiliary bracket 4 are fixed by the bracket mounting bolt 9, the anti-loosening gasket 10 is tightened, the steel rail bracket type shear sensor is usually used in pairs, and the other steel rail bracket type shear sensor is mounted at the same transverse position of the steel rail 13 on the opposite side of the mounted steel rail bracket type shear sensor. When the steel rail 13 is stressed and deformed, the strain beam 7 is deformed through the main support 3, and then the shape change of the steel rail 13 is converted into an electric signal through the sensor patch 8.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A steel rail bracket type shear sensor is characterized in that: the railway track sensor comprises a main support, an auxiliary support and a sensor body, wherein the main support and the auxiliary support are respectively arranged on two sides of a steel rail, the main support is detachably connected with the auxiliary support, the sensor body is arranged on one side of the main support close to the steel rail, and the main support is arranged on one side of the steel rail far away from a railway track; the sensor body comprises sensor ends, a strain beam and sensor patches, the sensor ends are detachably connected with the main support, the strain beam is connected with the two sensor ends, the sensor patches are arranged on the strain beam, the strain beam is arranged in parallel with the steel rail, and when the strain beam deforms under the action of the steel rail, the sensor patches can convert the deformation of the steel rail into electric signals.
2. A rail-mounted shear sensor as claimed in claim 1, wherein: the main support and the auxiliary support are respectively connected with the bottom of the steel rail in an inserting mode.
3. A rail-mounted shear sensor as claimed in claim 2, wherein: the main support and the auxiliary support are connected through a support mounting bolt, the support mounting bolt is arranged at the bottom of the steel rail, a gap is formed between the support mounting bolt and the steel rail, and a locking washer is arranged at the support mounting bolt.
4. A rail-mounted shear sensor as claimed in claim 1, wherein: the sensor is characterized in that an installation position is arranged on one side, close to a steel rail, of the main support, the cross section of the installation position is trapezoidal, the opening area of the installation position is larger than the bottom surface area of the installation position, and the sensor head is provided with an inclined surface matched with the installation position.
5. A rail-mounted shear sensor according to claim 4, wherein: the end head of the sensor is connected with the main bracket by using a sensor body bolt.
6. A rail-mounted shear sensor as claimed in claim 1, wherein: the sensor body further comprises a wire-passing hole, and the wire-passing hole penetrates through the strain beam and the two sensor ends.
7. A rail-mounted shear sensor as claimed in claim 1, wherein: the number of the sensor patches is one, and the sensor patches are located on the center line of the strain beam.
8. A rail-mounted shear sensor as claimed in claim 1, wherein: the number of the sensor patches is two, and the two sensor patches are symmetrically arranged by taking the center line of the strain beam as an axis.
9. A rail-mounted shear sensor according to any one of claims 1 to 8, wherein: the number of the main supports, the number of the auxiliary supports and the number of the sensor bodies are two, and the two groups of the main supports, the auxiliary supports and the number of the sensor bodies are arranged on two opposite sides of the two steel rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010565275.5A CN111595425A (en) | 2020-06-19 | 2020-06-19 | Steel rail bracket type shear sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010565275.5A CN111595425A (en) | 2020-06-19 | 2020-06-19 | Steel rail bracket type shear sensor |
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| Publication Number | Publication Date |
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| CN111595425A true CN111595425A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010565275.5A Pending CN111595425A (en) | 2020-06-19 | 2020-06-19 | Steel rail bracket type shear sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108885A (en) * | 2021-03-02 | 2021-07-13 | 江苏泰力机械科技有限公司 | Track overload and unbalance loading detection device |
-
2020
- 2020-06-19 CN CN202010565275.5A patent/CN111595425A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108885A (en) * | 2021-03-02 | 2021-07-13 | 江苏泰力机械科技有限公司 | Track overload and unbalance loading detection device |
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