Switch rail measuring device and switch rail measuring system
Through the design of the pointed rail measurement device, the tip rod and displacement measurement unit are used to measure the tip rail displacement in harsh environments, solving the problem of low camera accuracy and achieving high-precision and low-cost measurement.
Patent Information
- Application Number
- CN202421636527.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In harsh environments, the camera's image acquisition is affected, resulting in the problem of low accuracy in measuring the tip rail displacement.
The pointed rail measuring device is adopted, including an outer shell, an inner shell, a top rod, a displacement measuring unit and an elastic member. The top rod extends out of the outer shell and light the top rail. The moving distance of the tip rail is measured through the displacement measuring unit to avoid harsh environmental influences.
Improve the accuracy of the displacement measurement of pointed rails and reduce construction costs.
Smart Images
Figure CN223138602U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of railway switches. More specifically, it relates to a switch rail measurement device and a switch rail measurement system using the same. Background Art
[0002] The switch rail is an important component in the train track conversion. It relies on the switch machine to move the switch rail to guide the train into the main line or the siding direction to achieve the purpose of train track switching. Whether the switch rail moves in place is judged based on the distance between the switch rail and the stock rail, and this data is used to ensure the safe operation of the train.
[0003] However, for the measurement of the switch rail displacement in harsh environments such as heavy snow and heavy rain, the presence of snow or raindrops on the switch rail and the stock rail will affect the accuracy of the image collected by the camera, and thus affect the measurement accuracy of the switch rail displacement. Summary of the Utility Model
[0004] The purpose of the embodiments of this application is to provide a switch rail measurement device and a switch rail measurement system to solve the problem in the related art that the image collected by the camera is affected by the harsh environment, resulting in low measurement accuracy of the switch rail displacement.
[0005] To achieve the above purpose, the technical solution adopted in the embodiments of this application is as follows:
[0006] On the one hand, a switch rail measurement device is provided, including:
[0007] A housing;
[0008] An inner housing, installed in the housing;
[0009] A push rod, penetrating through the inner housing, and one end of the push rod extends out of the housing;
[0010] A displacement measurement unit, installed in the inner housing and connected to the push rod, for measuring the moving distance of the push rod;
[0011] An elastic member, installed in the housing, one end of the elastic member abuts against the inner side wall of the housing, and the other end of the elastic member abuts against the other end of the push rod.
[0012] In one embodiment, the displacement measurement unit includes a magnetic scale installed in the inner housing and a first read head for cooperating with the magnetic scale to obtain the moving distance of the switch rail. The first read head is installed on the push rod and slidably installed on the magnetic scale.
[0013] In one embodiment, the displacement measurement unit further includes a first limiting roller, a first connecting piece connecting the first limiting roller and the first read head, and a first cross beam supporting the first limiting roller; the first cross beam is arranged parallel to the ejector rod.
[0014] In one embodiment, the displacement measurement unit includes a grating installed in the inner shell and a second read head for cooperating with the grating to obtain the moving distance of the switch rail, and the second read head is installed on the ejector rod and slidably installed on the grating.
[0015] In one embodiment, the displacement measurement unit further includes a second limiting roller, a second connecting piece connecting the second limiting roller and the second read head, and a second cross beam supporting the second limiting roller; the second cross beam is arranged parallel to the ejector rod.
[0016] In one embodiment, the displacement measurement unit includes a resistive displacement measurer installed in the inner shell.
[0017] In one embodiment, the switch rail measuring device further includes a baffle installed at one end of the ejector rod close to the elastic member, and two proximity switches installed in the outer shell at intervals, and the baffle is arranged between the two proximity switches.
[0018] In one embodiment, the switch rail measuring device further includes a first sealing gasket and a second sealing gasket. A sealing chamber is formed by enclosing between one end of the outer shell close to the protruding end of the ejector rod and one end of the inner shell close to the protruding end of the ejector rod. The first sealing gasket and the second sealing gasket are respectively arranged in the sealing chamber, and the first sealing gasket is arranged close to the protruding end of the ejector rod; a first through hole for the ejector rod to pass through is formed in the first sealing gasket, and a second through hole for the ejector rod to pass through is formed in the second sealing gasket.
[0019] In one embodiment, the switch rail measuring device further includes an electrostatic precipitator installed in the sealing chamber, and the electrostatic precipitator is arranged between the first sealing gasket and the second sealing gasket.
[0020] On the other hand, a switch rail measuring system is provided, including the switch rail measuring device provided in any one of the above embodiments. The number of the switch rail measuring devices is two. The ejector rod of one of the switch rail measuring devices is used to abut against the stock rail, and the ejector rod of the other switch rail measuring device is used to abut against the switch rail.
[0021] The switch rail measuring device and the switch rail measuring system provided by the embodiments of the present application at least have the following beneficial effects: One end of the ejector rod extending out of the outer shell can gently abut against the forefront of the switch rail. During the reciprocating movement of the switch machine to pull the switch rail to the maximum opening position and the position where it is in close contact with the stock rail, during the movement of the ejector rod, the displacement measuring unit can measure the moving distance of the ejector rod, and thus the maximum opening and the close contact distance of the switch rail can be obtained. It is not affected by harsh environments. Compared with the traditional method of collecting patterns by using a camera, the switch rail measuring device and the switch rail measuring system have the advantages of high measuring accuracy and low construction cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0023] Figure 1 Structural schematic diagrams of the first and second switch rail measuring devices provided by the embodiments of the present application;
[0024] Figure 2 For Figure 1 Structural schematic diagram at the displacement measuring unit in
[0025] Figure 3 Structural schematic diagrams of the first and second switch rail measuring systems provided by the embodiments of the present application;
[0026] Figure 4 Structural schematic diagram of the third switch rail measuring device provided by the embodiments of the present application;
[0027] Figure 5 Structural schematic diagram of the third switch rail measuring system provided by the embodiments of the present application.
[0028] Among them, the main reference signs in the drawings are as follows:
[0029] 1. Outer shell; 2. Inner shell; 3. Ejector rod;
[0030] 4. Displacement measuring unit; 41. Magnetic grating; 42. First reading head; 43. First limiting roller; 44. First connecting piece; 45. First cross beam; 46. Grating; 47. Second reading head; 48. Second limiting roller; 49. Second connecting piece; 40. Second cross beam; 400. Resistive displacement measurer;
[0031] 5. Elastic member; 6. Baffle; 7. Proximity switch; 8. First sealing gasket; 9. Second sealing gasket; 10. Sealing chamber; 11. Electrostatic precipitator; 100. Switch rail measuring device; 101. Switch rail; 102. Stock rail. Detailed implementation manner
[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the following further details this application in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.
[0033] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined. "Several" means one or more, unless otherwise specifically defined.
[0035] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.
[0036] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0037] Reference to "one embodiment" or "an embodiment" throughout the specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment" or "in some embodiments" appearing throughout the specification do not necessarily refer to the same embodiment. Further, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
[0038] Please refer to Figure 1 , and now the switch rail measuring device 100 provided in the embodiment of the present application will be described. The switch rail measuring device 100 includes a housing 1, an inner housing 2, a push rod 3, a displacement measuring unit 4, and an elastic member 5. Optionally, the housing 1 and the inner housing 2 are of a hollow structure to isolate from the external environment and avoid interference from the external environment. The inner housing 2 is installed in the housing 1 to accommodate the displacement measuring unit 4 and reduce the interference of the external environment on the displacement measuring unit 4, so as to improve the measuring accuracy of the displacement measuring unit 4. The push rod 3 penetrates through the inner housing 2, one end of the push rod 3 extends out of the housing 1, the other end of the push rod 3 abuts against one end of the elastic member 5, and the other end of the elastic member 5 abuts against the inner side wall of the housing 1. The elastic member 5 can be used to push the push rod 3 to reset by its own elastic thrust during the sliding process of the push rod 3, and the telescopic distance of the elastic member 5 is the same as the maximum opening distance between the switch rail 101 and the stock rail 102. Among them, the elastic member 5 can be a spring. With this structure, the end of the push rod 3 extending out of the housing 1 can gently abut against the front end of the switch rail 101. During the reciprocating movement of the switch machine to pull the switch rail 101 to the maximum opening position and the position close to the stock rail 102, during the movement of the push rod 3, the displacement measuring unit 4 can measure the moving distance of the push rod 3, and then the maximum opening and the close distance of the switch rail 101 can be obtained, and it will not be affected by the harsh environment. Compared with the traditional method of collecting patterns by a camera, the switch rail measuring device 100 and the switch rail measuring system have the advantages of high measuring accuracy and low construction cost.
[0039] In one embodiment, please refer to Figure 1 , as a specific implementation manner of the switch rail measuring device 100 provided in the embodiment of the present application, the displacement measuring unit 4 includes a magnetic scale 41 and a first reading head 42. The magnetic scale 41 is installed in the inner housing 2, and the first reading head 42 is installed on the push rod 3. The first reading head 42 is slidably installed on the magnetic scale 41. With this structure, when the push rod 3 drives the first reading head 42 to slide on the magnetic scale 41, the first reading head 42 can read the moving distance, and thus the moving distance of the switch rail 101 can be obtained.
[0040] During use, when the switch machine pulls the switch rail 101 to the maximum opening position, the switch rail 101 drives the ejector rod 3 to move. At this time, the ejector rod 3 compresses the elastic member 5 to compress it. During the movement of the ejector rod 3, it drives the first reading head 42 to slide on the magnetic grating 41. At this time, the moving distance read by the first reading head 42 can be the maximum opening distance of the switch rail 101. When the switch machine pulls the switch rail 101 to be closely attached to the stock rail 102, the elastic member 5 makes the ejector rod 3 abut against the stock rail 102 under the elastic pushing action. During this process, the movement of the ejector rod 3 can drive the first reading head 42 to slide on the magnetic grating 41 together. At this time, the moving distance read by the first reading head 42 can be the close-fitting distance of the switch rail 101 to the stock rail 102.
[0041] In one embodiment, please refer to Figure 1 and Figure 2 , as a specific implementation manner of the switch rail measuring device 100 provided in the embodiment of the present application, the displacement measuring unit 4 further includes a first limiting roller 43, a first connecting piece 44 and a first cross beam 45. The first connecting piece 44 is installed on the first reading head 42, and the first limiting roller 43 is installed on the first connecting piece 44. The first cross beam 45 is installed on the inner side wall of the inner shell 2, and the first cross beam 45 is arranged in parallel and spaced apart from the ejector rod 3. With this structure, through the positioning cooperation between the first limiting roller 43 and the first cross beam 45, it can be ensured that the first reading head 42 reciprocates along the moving direction of the ejector rod 3 and slides on the magnetic grating 41, which helps to improve the accuracy of the first reading head 42.
[0042] In one embodiment, please refer to Figure 1 , as a specific implementation manner of the switch rail measuring device 100 provided in the embodiment of the present application, the displacement measuring unit 4 includes a grating 46 and a second reading head 47. The grating 46 is installed in the inner shell 2, and the second reading head 47 is installed on the ejector rod 3. The second reading head 47 is slidably installed on the grating 46. With this structure, when the ejector rod 3 drives the second reading head 47 to slide on the grating 46, the second reading head 47 can read the moving distance, and thus the moving distance of the switch rail 101 can be obtained.
[0043] During use, when the switch machine pulls the switch rail 101 to the maximum opening position, the switch rail 101 drives the ejector rod 3 to move. At this time, the ejector rod 3 compresses the elastic member 5 to compress it. During the movement of the ejector rod 3, it drives the second reading head 47 to slide on the grating 46. At this time, the moving distance read by the second reading head 47 can be the maximum opening distance of the switch rail 101. When the switch machine pulls the switch rail 101 to be closely attached to the stock rail 102, the elastic member 5 makes the ejector rod 3 abut against the stock rail 102 under the elastic pushing action. During this process, the movement of the ejector rod 3 can drive the second reading head 47 to slide on the grating 46 together. At this time, the moving distance read by the second reading head 47 can be the close-fitting distance of the switch rail 101 to the stock rail 102.
[0044] In one embodiment, please refer toFigure 1 and Figure 2 As a specific implementation of the switch rail measuring device 100 provided in the embodiments of the present application, the displacement measuring unit 4 further includes a second limit roller 48, a second connecting piece 49, and a second cross beam 40. The second connecting piece 49 is installed on the second reading head 47, and the second limit roller 48 is installed on the second connecting piece 49. The second cross beam 40 is installed on the inner side wall of the inner shell 2, and the second cross beam 40 is arranged parallel and spaced apart from the ejector rod 3. With this structure, through the positioning cooperation between the second limit roller 48 and the second cross beam 40, it can be ensured that the second reading head 47 reciprocates and slides on the grating 46 along the moving direction of the ejector rod 3, thereby helping to improve the accuracy of the second reading head 47.
[0045] In one embodiment, please refer to Figure 4 As a specific implementation of the switch rail measuring device 100 provided in the embodiments of the present application, the displacement measuring unit 4 includes a resistive displacement measuring device 400 installed in the inner shell 2. The resistive displacement measuring device 400 has the same working mode as a sliding rheostat and is a conventional device commonly used at present, so it will not be elaborated here. With this structure, during the process of the ejector rod 3 moving on the resistive displacement measuring device 400, the resistive displacement measuring device 400 can read the moving distance of the ejector rod 3, and then the maximum opening stroke and the close contact distance of the switch rail 101 can be obtained.
[0046] In one embodiment, please refer to Figure 1 As a specific implementation of the switch rail measuring device 100 provided in the embodiments of the present application, the switch rail measuring device 100 further includes a baffle 6 and two proximity switches 7. The baffle 6 can be installed at one end of the ejector rod 3 close to the elastic member 5, and the two proximity switches 7 are installed in the housing 1 at intervals and are specifically installed on the inner side wall of the housing 1; the baffle 6 can be arranged between the two proximity switches 7. Among them, one of the proximity switches 7 can be installed at the maximum opening stroke position of the ejector rod 3 (i.e., the maximum opening stroke position of the switch rail 101), and the other proximity switch 7 can be installed at the close contact position of the ejector rod 3 (i.e., the position where the switch rail 101 is in contact with the stock rail 102). With this structure, the two proximity switches 7 can be used to detect whether the position of the baffle 6 is in place, so as to detect the performance state of the elastic member 5. When the elastic member 5 is abnormal, the expansion and contraction of the elastic member 5 is blocked, and the baffle 6 cannot cooperate with the corresponding proximity switch 7. At this time, the proximity switch 7 always outputs a signal, so it is determined that the switch rail measuring device 100 has a fault and needs to be maintained in time.
[0047] In one embodiment, please refer to Figure 1, As a specific implementation of the switch rail measuring device 100 provided in the embodiments of the present application, the switch rail measuring device 100 further includes a first sealing gasket 8 and a second sealing gasket 9. A sealing chamber 10 is formed by enclosing between one end of the outer shell 1 close to the protruding end of the ejector rod 3 and one end of the inner shell 2 close to the protruding end of the ejector rod 3. The first sealing gasket 8 and the second sealing gasket 9 are respectively arranged in the sealing chamber 10, and the first sealing gasket 8 is arranged close to the protruding end of the ejector rod 3; a first through hole (not labeled in the figure) for the ejector rod 3 to pass through is formed on the first sealing gasket 8, and a second through hole (not labeled in the figure) for the ejector rod 3 to pass through is formed on the second sealing gasket 9. With this structure, by arranging the first sealing gasket 8 at the position of the outer shell 1 close to the protruding end of the ejector rod 3, the sealing of the outer shell 1 can be realized, and dust and other impurities can be prevented from entering the sealing chamber 10. By arranging the second sealing gasket 9 at the position of the inner shell 2 close to the protruding end of the ejector rod 3, the sealing of the inner shell 2 can be realized, and dust and other impurities can be prevented from entering the inner shell 2 and damaging other components, so as to improve the overall sealing performance of the switch rail measuring device 100 and avoid being affected by the external environment.
[0048] In one embodiment, please refer to Figure 1 , As a specific implementation of the switch rail measuring device 100 provided in the embodiments of the present application, the switch rail measuring device 100 further includes an electrostatic precipitator 11 installed in the sealing chamber 10, and the electrostatic precipitator 11 is arranged between the first sealing gasket 8 and the second sealing gasket 9. With this structure, the electrostatic precipitator 11 can remove dust and other impurities in the sealing chamber 10, and prevent dust and other impurities from damaging the switch rail measuring device 100.
[0049] Please refer to Figure 3 and Figure 5 , The embodiments of the present application further provide a switch rail measuring system, including the switch rail measuring device 100 provided in any of the above embodiments. The number of the switch rail measuring devices 100 is two. The ejector rod 3 of one switch rail measuring device 100 is used to abut against the stock rail 102, and the ejector rod 3 of the other switch rail measuring device 100 is used to abut against the switch rail 101.
[0050] During use, the ejector rod 3 of the first switch rail measuring device 100 is abutted against the stock rail 102, and the ejector rod 3 of the second switch rail measuring device 100 is abutted against the switch rail 101. When the switch machine pulls the switch rail 101 to the maximum opening position, the measuring distance of the second switch rail measuring device 100 can be obtained through the three displacement measuring units 4, which is the moving distance a1 of the switch rail 101; if the measuring distance of the first switch rail measuring device 100 is b, then the actual maximum opening S1 between the switch rail 101 and the stock rail 102 = a1 - b.
[0051] When the switch machine pulls the switch rail 101 to be closely attached to the stock rail 102, the elastic member 5 pushes against the ejector rod 3 under the action of the rebounding force and abuts against the stock rail 102. The measuring distance of the second switch rail measuring device 100 can be obtained through the three displacement measuring units 4, which is the moving distance a2 of the switch rail 101. If the measuring distance of the first switch rail measuring device 100 is b, then the actual close-fitting distance S2 between the switch rail 101 and the stock rail 102 is S2 = a2 - b.
[0052] The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A switch rail measuring device, characterized in that, Comprising: A housing; An inner housing, installed in the housing; A push rod, penetrating through the inner housing, with one end of the push rod protruding out of the housing; A displacement measurement unit, installed in the inner housing and connected to the push rod, for measuring the moving distance of the push rod; An elastic member, installed in the housing, with one end of the elastic member abutting against the inner side wall of the housing and the other end of the elastic member abutting against the other end of the push rod; The switch rail measuring device further includes a first sealing gasket and a second sealing gasket. A sealing chamber is formed by enclosing between one end of the housing close to the protruding end of the push rod and one end of the inner housing close to the protruding end of the push rod. The first sealing gasket and the second sealing gasket are respectively arranged in the sealing chamber, and the first sealing gasket is arranged close to the protruding end of the push rod; a first through hole for the push rod to pass through is opened on the first sealing gasket, and a second through hole for the push rod to pass through is opened on the second sealing gasket.
2. The switch rail measuring device according to claim 1, characterized in that: The displacement measurement unit includes a magnetic grating installed in the inner housing and a first read head for cooperating with the magnetic grating to obtain the moving distance of the switch rail. The first read head is installed on the push rod and slidably installed on the magnetic grating.
3. The switch rail measuring device according to claim 2, wherein: The displacement measurement unit further includes a first limiting roller, a first connecting piece connecting the first limiting roller and the first read head, and a first cross beam supporting the first limiting roller; the first cross beam is arranged parallel to the push rod.
4. The switch rail measuring device according to claim 1, characterized in that: The displacement measurement unit includes a grating installed in the inner housing and a second read head for cooperating with the grating to obtain the moving distance of the switch rail. The second read head is installed on the push rod and slidably installed on the grating.
5. The switch rail measuring device according to claim 4, characterized in that: The displacement measurement unit further includes a second limiting roller, a second connecting piece connecting the second limiting roller and the second read head, and a second cross beam supporting the second limiting roller; the second cross beam is arranged parallel to the push rod.
6. The switch rail measuring device according to claim 1, wherein: The displacement measurement unit includes a resistive displacement measuring device installed in the inner housing.
7. The tongue rail measuring device according to any one of claims 1-6, characterized in that: The switch rail measuring device further includes a baffle installed at one end of the push rod close to the elastic member, and two proximity switches installed in the housing at intervals. The baffle is arranged between the two proximity switches.
8. The switch rail measuring device according to claim 1, characterized in that: The switch rail measuring device further includes an electrostatic precipitator installed in the sealing chamber. The electrostatic precipitator is arranged between the first sealing gasket and the second sealing gasket.
9. The switch rail measurement system is characterized in that: Including the switch rail measuring device according to any one of claims 1-8, the number of the switch rail measuring devices is two. The push rod of one of the switch rail measuring devices is used to abut against the stock rail, and the push rod of the other switch rail measuring device is used to abut against the switch rail.