CN219096712U - Switch tongue position differential detection structure - Google Patents
Switch tongue position differential detection structure Download PDFInfo
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- CN219096712U CN219096712U CN202223030036.3U CN202223030036U CN219096712U CN 219096712 U CN219096712 U CN 219096712U CN 202223030036 U CN202223030036 U CN 202223030036U CN 219096712 U CN219096712 U CN 219096712U
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Abstract
The utility model discloses a differential detecting structure for the position of a switch tongue, which comprises a mounting frame, a first displacement sensor and a second displacement sensor, wherein the first displacement sensor and the second displacement sensor are respectively arranged on the mounting frame, the first displacement sensor is used for detecting the position of the end part of the switch tongue, the second displacement sensor is used for detecting the position of a stock rail, and the detecting result is obtained through the difference value of the positions of the switch tongue and the stock rail. The utility model improves the detection precision.
Description
Technical Field
The utility model relates to a differential detection structure for the position of a switch tongue.
Background
Along with the acceleration of China rail transit construction, the input use quantity of the turnout switches is multiplied, so that the operation and maintenance cost of equipment is higher and higher, and the condition of untimely overhaul aging can occur. Therefore, automatic detection equipment replaces manual work and is put into use, and has become a necessary result.
The fitting degree of the switch rail and the stock rail is an important detection item, and the traditional detection structure directly detects the moving switch rail by taking the stock rail which is fixed for a long time as a base point. Such a detection structure is simple and intuitive, but the above-mentioned conventional detection structure causes the following problems:
1. under a poor working environment, particularly under the environment with heavy oil stains and large dust, the surfaces of the switch rail and the stock rail are changed at the same time, and the detection mode for detecting the position of the switch rail only can influence the detection precision and accuracy, so that the maintenance frequency of equipment is increased for workers;
2. the detection will produce a large error when the stock rail undergoes a small displacement.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a differential detection structure for the switch tongue position, which improves the detection precision.
The technical scheme adopted by the utility model is as follows:
a switch tongue position difference formula detection structure, its characterized in that: the device comprises a mounting frame, a first displacement sensor and a second displacement sensor, wherein the first displacement sensor and the second displacement sensor are respectively arranged on the mounting frame, the first displacement sensor is used for detecting the position of the end part of a switch rail, and the second displacement sensor is used for detecting the position of a stock rail.
Alternatively, the detection ends of the first displacement sensor and the second displacement sensor face the inner side of the end portion of the point rail and the inner side of the stock rail, respectively, with the inner side of the end portion of the point rail and the inner side of the stock rail as detection points.
Optionally, the mounting positions of the first displacement sensor and the second displacement sensor are staggered.
Optionally, the upper surface of the mounting frame is provided with a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are staggered, and the first displacement sensor and the second displacement sensor are respectively fixed on the side surfaces of the first vertical plate and the second vertical plate.
Optionally, the mounting bracket is provided with a bottom plate, the first vertical plate and the second vertical plate are respectively vertically fixed on the bottom plate, and the opposite angles of the bottom plate are respectively provided with mounting holes.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides two displacement sensors, wherein the positions of the switch rail and the stock rail are detected by the first displacement sensor and the second displacement sensor respectively, and the detection result is obtained by the difference value of the positions of the switch rail and the stock rail. According to the utility model, the displacement sensor is added, and the equipment cost is increased, but the detection precision is improved, and the problem of high-precision detection of the close degree and the repulsive value in the switch rail displacement monitoring is solved.
According to the utility model, the micro-displacement of the standard rail with the fixed datum point is considered in the detection result, so that the condition that the direct detection can cause larger error due to the micro-displacement of the standard rail due to the stress of the standard rail is avoided.
Under the environments of dust, oil stain and the like, the influence of the stock rail and the point rail part can be regarded as the same, and the dust and the oil stain are adhered to the stock rail and the point rail part in the same way. The differential mode prolongs the maintenance period of equipment while improving the environmental impact, reduces the labor investment of equipment maintenance and saves the operation and maintenance cost.
Drawings
FIG. 1 is a schematic perspective view of a differential switch rail position sensing arrangement of the present utility model;
FIG. 2 is a schematic perspective view of the mounting bracket of the present utility model;
FIG. 3 is a schematic top view of the mounting bracket of the present utility model;
fig. 4 is a schematic structural view of the present utility model in use.
The meaning of the reference numerals in the figures:
1-mounting rack; 1.1-a first vertical plate; 1.2-a second riser; 1.3-a bottom plate; 1.4-mounting holes; 2-a first displacement sensor; 3-a second displacement sensor; 4-the end of the point rail; 5-stock rail.
Detailed Description
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
The utility model is further described below with reference to examples.
Fig. 1 to 3 show a differential detecting structure for the switch point position of the present embodiment, which includes a mounting frame 1, a first displacement sensor 2 and a second displacement sensor 3.
Wherein, mounting bracket 1 is equipped with bottom plate 1.3, first riser 1.1 and second riser 1.2, and first riser 1.1 and second riser 1.2 are erect respectively and are fixed on bottom plate 1.3, and first riser 1.1 and second riser 1.2 are around, left and right sides homogeneous phase stagger, and first displacement sensor 2 and second displacement sensor 3 are fixed respectively on the side of first riser 1.1 and second riser 1.2, and the position of first displacement sensor 2 and second displacement sensor 3 just also stagger mutually to can not influence the detection each other.
The first displacement sensor 2 of the present embodiment is used to detect the position of the end 4 of the point rail and the second displacement sensor 3 is used to detect the position of the stock rail 5. The method comprises the following specific steps: the detection ends of the first displacement sensor 2 and the second displacement sensor 3 face the inside of the end portion 4 of the point rail and the inside of the stock rail 5, respectively, with the inside of the end portion 4 of the point rail and the inside of the stock rail 5 being detection points.
The opposite corners of the base plate 1.3 of the present embodiment are provided with mounting holes 1.4, respectively, and the base plate 1.3 can be fixed to a mounting surface by bolts.
As shown in fig. 4, the present differential switch rail position sensing structure is mounted in use at a location corresponding to the end 4 of the switch rail and the stock rail 5. Wherein the position where the first displacement sensor 2 detects the inner side of the end 4 of the point rail is a detection point a, and the measured value is Xa; the position at which the second displacement sensor 3 detects the inside of the stock rail 5 is a detection point B, and the measured value is Xb. The difference x=xa-Xb, which is then the displacement between the end 4 of the point rail and the stock rail 5. The degree of abutment and the value of the separation between the end of the point rail and the stock rail can be known by the difference X, for example: the difference X is equal to the thickness of the end of the point rail, then it is a perfect fit; the difference X is slightly greater than the thickness of the end of the point rail, then there is a gap.
The above-mentioned embodiments of the present utility model are not intended to limit the scope of the present utility model, and the embodiments of the present utility model are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present utility model according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present utility model shall fall within the scope of the present utility model.
Claims (5)
1. A switch tongue position difference formula detection structure, its characterized in that: the device comprises a mounting frame, a first displacement sensor and a second displacement sensor, wherein the first displacement sensor and the second displacement sensor are respectively mounted on the mounting frame, the first displacement sensor is used for detecting the position of the end part of a switch rail, and the second displacement sensor is used for detecting the position of a stock rail.
2. The switch point position differential sensing structure of claim 1, wherein: the detection ends of the first displacement sensor and the second displacement sensor face the inner side of the end part of the switch rail and the inner side of the stock rail respectively, and the inner side of the end part of the switch rail and the inner side of the stock rail are taken as detection points.
3. The switch point position differential sensing structure of claim 1, wherein: the mounting positions of the first displacement sensor and the second displacement sensor are staggered.
4. A switch point position differential sensing structure as defined in claim 3, wherein: the mounting rack is provided with a first vertical plate and a second vertical plate, the first vertical plate and the second vertical plate are staggered, and the first displacement sensor and the second displacement sensor are respectively fixed on the side surfaces of the first vertical plate and the second vertical plate.
5. The switch point position differential sensing structure of claim 4, wherein: the mounting frame is provided with a bottom plate, the first vertical plate and the second vertical plate are respectively and vertically fixed on the bottom plate, and the opposite angles of the bottom plate are respectively provided with mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223030036.3U CN219096712U (en) | 2022-11-15 | 2022-11-15 | Switch tongue position differential detection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223030036.3U CN219096712U (en) | 2022-11-15 | 2022-11-15 | Switch tongue position differential detection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219096712U true CN219096712U (en) | 2023-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223030036.3U Active CN219096712U (en) | 2022-11-15 | 2022-11-15 | Switch tongue position differential detection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219096712U (en) |
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2022
- 2022-11-15 CN CN202223030036.3U patent/CN219096712U/en active Active
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