Rail bottom gap measuring device for turnout switch rail

Abstract

The utility model provides a turnout switch rail bottom gap measuring device. The turnout switch rail bottom gap measuring device comprises a measuring cross beam; the fixing assembly is detachably connected with one end of the measuring cross beam, and at least one part of the fixing assembly can move relative to the measuring cross beam; the measuring assembly is arranged at the other end of the measuring cross beam and comprises at least one first probe part and at least one second probe part, and the distance between the end, away from the measuring cross beam, of the first probe part and the measuring cross beam is smaller than the distance between the end, away from the measuring cross beam, of the second probe part and the measuring cross beam; a containing space used for containing the stock rail and the switch rail is formed between the fixing assembly and the measuring assembly, and the fixing assembly can abut against the stock rail. According to the utility model, the problems of insufficient measurement precision and low efficiency of the rail bottom gap of the railway turnout switch rail in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation engineering, in particular to a device for measuring the gap between the bottom of a turnout point rail. Background Art

[0002] Railway turnouts are one of the key equipment in civil engineering projects. They have complex structures, high performance requirements, and great technical difficulty. They are the weakest link in the track structure of high-speed railways. Turnout defects can easily lead to serious consequences such as swaying and derailment, which threaten the safety of EMU operation. Therefore, they have always been the focus of railway line inspection and maintenance. Due to manufacturing and installation errors and structural degradation after long-term service, the point rail and the slide bed plate have a gap, which affects the smoothness of the train passing the turnout and increases the contact stress between the bottom of the point rail and the slide bed plate. The contact between the bottom of the point rail and the slide bed plate is rigid contact. Once the bottom of the rail is separated, the contact stress of the bottom of the rail increases sharply under the impact load of the train, reducing the fatigue performance of the turnout point rail. The existing high-speed turnout maintenance rules require that the gap between the point rail arch waist and the slide bed should not exceed 2mm. When the limit is exceeded, it should be repaired or replaced.

[0003] The existing technical means uses a feeler gauge with a suitable thickness to repeatedly slide the plug on the bottom of the point rail one by one to confirm the gap between the bottom of the point rail and the slide table. The existing method has low test accuracy and a large measurement workload. In addition, the existing feeler gauge measurement method is affected by the experience of the measurement personnel. The feeler gauge measurement at different positions may obtain different results, and it is impossible to effectively evaluate the contact state between the bottom of the movable rail and the slide table.

[0004] Therefore, the existing technology has the problems of insufficient accuracy and low efficiency in measuring the gap between the rail tip and the bottom of the railway turnout. Utility Model Content

[0005] The main purpose of the utility model is to provide a device for measuring the gap between the bottom of a turnout point rail, so as to solve the problems of insufficient accuracy and low efficiency in measuring the gap between the bottom of a turnout point rail in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a device for measuring the bottom gap of a turnout point rail is provided, comprising: a measuring beam; a fixing assembly, which is detachably connected to one end of the measuring beam, and at least a part of the fixing assembly can move relative to the measuring beam; a measuring assembly, which is arranged at the other end of the measuring beam, the measuring assembly comprising at least one first probe part and at least one second probe part, the distance from the end of the first probe part away from the measuring beam to the measuring beam is smaller than the distance from the end of the second probe part away from the measuring beam to the measuring beam, an accommodating space for accommodating a basic rail and a point rail is provided between the fixing assembly and the measuring assembly, and the fixing assembly can abut against the basic rail.

[0007] Further, the first probe part and the second probe part are arranged along the length direction of the measuring beam, the first probe part and the second probe part both extend along the thickness direction of the measuring beam, and the first probe part is closer to the fixing assembly than the second probe part.

[0008] Furthermore, there are multiple first probe parts and multiple second probe parts, and the multiple first probe parts and multiple second probe parts are divided into multiple groups, each group includes at least one first probe part and at least one second probe part, and the multiple groups of probes are arranged at intervals along the width direction of the measuring beam.

[0009] Further, the first probe part and the second probe part are both one, and the distances from the first probe part and / or the second probe part to both ends of the measuring beam in the width direction are the same.

[0010] Furthermore, the measuring assembly further comprises at least one probe mounting portion, which is arranged on one side of the measuring beam in the thickness direction, and each probe mounting portion is respectively provided with at least one first probe portion and at least one second probe portion.

[0011] Further, the first probe part and / or the second probe part includes a contact displacement sensor.

[0012] Furthermore, the fixing assembly includes at least two fixed plates arranged at intervals, the two fixed plates are arranged at intervals along the width direction of the measuring beam, and one of the fixed plates and the measuring beam has a slide rail, and the other has a slide groove that cooperates with the slide rail and extends along the width direction of the measuring beam.

[0013] Furthermore, a side of the fixing plate facing the base rail has an arc-shaped or step-shaped matching surface, and the fixing plate abuts against the base rail through the matching surface.

[0014] Furthermore, the turnout point rail bottom gap measuring device also includes: at least one adjusting bolt, which is adjustably arranged on the measuring beam, and the adjusting bolt passes through the measuring beam from the side of the measuring beam away from the basic rail and can abut against the basic rail; and / or a level bubble, which is arranged on the side of the measuring beam away from the basic rail.

[0015] Furthermore, the turnout point rail bottom gap measuring device also includes a digital display module, which is arranged on the measuring beam and is signal-connected to the first probe part and the second probe part respectively.

[0016] Applying the technical solution of the utility model, the turnout point rail bottom gap measuring device in the present application comprises a measuring beam, a fixing assembly and a measuring assembly. The fixing assembly is detachably connected to one end of the measuring beam, and at least a part of the fixing assembly can move relative to the measuring beam; the measuring assembly is arranged at the other end of the measuring beam, and the measuring assembly comprises at least one first probe part and at least one second probe part, the distance from one end of the first probe part away from the measuring beam to the measuring beam is smaller than the distance from one end of the second probe part away from the measuring beam to the measuring beam, there is an accommodation space for accommodating the base rail and the point rail between the fixing assembly and the measuring assembly, and the fixing assembly can abut against the base rail.

[0017] When using the turnout point rail bottom gap measuring device in the present application, since there is a storage space for accommodating the basic rail and the point rail between the fixed component and the measuring component, and the fixed component can abut against the basic rail, the positioning of the entire turnout point rail bottom gap measuring device can be achieved through the fixed component to ensure the accuracy of the turnout point rail bottom gap measuring device. At the same time, since the measuring component has a first probe part and a second probe part, when in use, the first probe part can be abutted against the upper surface of the bottom of the point rail, thereby measuring the distance between the top of the basic rail and the upper surface of the bottom of the point rail, and the second probe part can be abutted against the upper surface of the slide bed table to measure the distance between the top of the basic rail and the upper surface of the slide bed table, thereby characterizing the rail bottom gap amount according to the numerical difference measured by the first probe part and the second probe part. Therefore, the turnout point rail bottom gap measuring device in the present application effectively solves the problems of insufficient accuracy and low efficiency in measuring the bottom gap of the railway turnout point rail in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of a turnout point rail bottom gap measuring device according to a specific embodiment of the utility model is shown;

[0020] Figure 2 Shows Figure 1 A side view of a fixed component portion of a turnout tip rail bottom gap measuring device;

[0021] Figure 3 Shows Figure 1 A side view of a measuring component portion of a turnout point rail bottom gap measuring device;

[0022] Figure 4 A schematic diagram of the connection between the measuring beam and the fixing plate in a specific embodiment of the present application is shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. Measuring beam; 20. Fixing assembly; 21. Fixing plate; 30. Measuring assembly; 31. First probe part; 32. Second probe part; 33. Probe mounting part; 40. Basic rail; 50. Point rail; 60. Slide rail; 61. Slide groove; 70. Adjusting bolt; 80. Level bubble; 90. Digital display module; 100. Slide table. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0028] In order to solve the problems of insufficient accuracy and low efficiency in measuring the gap between the bottom of the railway turnout point rail in the prior art, the present application provides a device for measuring the gap between the bottom of the turnout point rail.

[0029] like Figures 1 to 4 As shown, the turnout point rail bottom gap measuring device in the present application comprises a measuring beam 10, a fixing assembly 20 and a measuring assembly 30. The fixing assembly 20 is detachably connected to one end of the measuring beam 10, and at least a part of the fixing assembly 20 can move relative to the measuring beam 10; the measuring assembly 30 is arranged at the other end of the measuring beam 10, and the measuring assembly 30 comprises at least one first probe part 31 and at least one second probe part 32, the distance from one end of the first probe part 31 away from the measuring beam 10 to the measuring beam 10 is smaller than the distance from one end of the second probe part 32 away from the measuring beam 10 to the measuring beam 10, and there is an accommodation space for accommodating the base rail 40 and the point rail 50 between the fixing assembly 20 and the measuring assembly 30, and the fixing assembly 20 can abut against the base rail 40.

[0030] When using the turnout point rail bottom gap measuring device in the present application, since there is a storage space for accommodating the basic rail 40 and the point rail 50 between the fixing assembly 20 and the measuring assembly 30, and the fixing assembly 20 can abut against the basic rail 40, the positioning of the entire turnout point rail bottom gap measuring device can be achieved through the fixing assembly 20 to ensure the accuracy of the turnout point rail bottom gap measuring device. At the same time, since the measuring assembly 30 has a first probe part 31 and a second probe part 32, when in use, the first probe part 31 can be abutted against the upper surface of the bottom of the point rail 50 to measure the distance between the top of the basic rail 40 and the upper surface of the bottom of the point rail 50, and the second probe part 32 can be abutted against the upper surface of the slide bed plate 100 to measure the distance between the top of the basic rail 40 and the upper surface of the slide bed plate 100, so as to characterize the rail bottom gap amount according to the numerical difference measured by the first probe part 31 and the second probe part 32. Therefore, the turnout point rail bottom gap measuring device in the present application effectively solves the problem of insufficient accuracy and low efficiency in measuring the bottom gap of the railway turnout point rail 50 in the prior art.

[0031] Optionally, the first probe part 31 and the second probe part 32 are arranged along the length direction of the measuring beam 10, and the first probe part 31 and the second probe part 32 both extend along the thickness direction of the measuring beam 10, and the first probe part 31 is closer to the fixing assembly 20 than the second probe part 32. Of course, in the present application, the specific positions of the first probe part 31 and the second probe part 32 can also be adjusted according to the position of the upper surface of the bottom of the point rail 50 and the specific position of the upper surface of the slide bed plate 100.

[0032] Specifically, the measuring assembly 30 further includes at least one probe mounting portion 33 , which is disposed on one side of the measuring beam 10 in the thickness direction, and each probe mounting portion 33 is respectively provided with at least one first probe portion 31 and at least one second probe portion 32 .

[0033] Optionally, there are multiple first probe parts 31 and multiple second probe parts 32, and the multiple first probe parts 31 and multiple second probe parts 32 are divided into multiple groups, each group includes at least one first probe part 31 and at least one second probe part 32, and the multiple groups of probes are arranged at intervals along the width direction of the measuring beam 10. In a specific embodiment of the present application, there are two first probe parts 31 and second probe parts 32, and there are also two probe mounting parts 33, and each probe mounting part 33 is respectively provided with a first probe part 31 and a second probe part 32. And the two first probe parts 31 can abut against the point rail 50, and the two second probe parts 32 can abut against the slide table 100. In the present application, the two first probe parts 31 can abut against the two ends of the upper surface of the bottom of the point rail 50, and the two second probe parts 32 can abut against the two ends of the slide table 100, thereby ensuring that the measured data is more accurate.

[0034] Of course, in the present application, the first probe part 31 and the second probe part 32 may both be one, and the distances from the first probe part 31 and / or the second probe part 32 to both ends of the width direction of the measuring crossbeam 10 are the same. At this time, the first probe part 31 may abut against the middle of the upper surface of the bottom of the point rail 50, and the second probe part 32 may abut against the middle of the slide bed plate 100, thereby ensuring the accuracy of the measurement data.

[0035] Optionally, the first probe part 31 and the second probe part 32 both include contact displacement sensors to obtain the rail bottom gap amount through the deviation of the relative height between the rail bottom of the point rail 50 and the slide bed platen 100 from the design value. Of course, in the present application, the first probe part 31 and the second probe part 32 may also include non-contact displacement sensors, and measure the rail bottom gap by automatically identifying the distance between the upper surface of the rail bottom of the point rail 50 and the upper surface of the slide bed platen 100.

[0036] Specifically, the fixing assembly 20 includes at least two fixed plates 21 arranged at intervals, and the two fixed plates 21 are arranged at intervals along the width direction of the measuring crossbeam 10, and one of the fixed plate 21 and the measuring crossbeam 10 has a slide rail 60, and the other has a slide groove 61 that cooperates with the slide rail 60 and extends along the width direction of the measuring crossbeam 10. In addition, the fixed plate 21 has an arc-shaped or step-shaped matching surface on the side facing the basic rail 40, and the fixed plate 21 abuts against the basic rail 40 through the matching surface. Through such an arrangement, when measurement is required, the matching surface of the fixed plate 21 can be made to abut against the basic rail 40, thereby ensuring the stability of the turnout point rail bottom gap measuring device during the measurement process. Of course, in the present application, the fixed plate 21 and the measuring crossbeam 10 can also be detachably connected by bolts.

[0037] Of course, in the present application, the mating surface may also be other shapes, at least to ensure that the fixed plate 21 can fit the surface contour of the base rail 40 through the mating surface. Moreover, in the present application, the fixed plate 21 may also have magnetic attraction, so as to ensure that the fixed plate 21 can be adsorbed with the base rail 40. Preferably, the fixed plate 21 may have a switch magnetic part, so as to achieve the magnetic attraction of the fixed plate 21. Of course, in the present application, other structures may also be provided on the fixed plate 21, as long as the fixed plate 21 can have magnetic attraction.

[0038] Optionally, the turnout point rail bottom gap measuring device further includes at least one adjusting bolt 70 and a level bubble 80. The adjusting bolt 70 is adjustably arranged on the measuring beam 10. The adjusting bolt 70 passes through the measuring beam 10 from the side of the measuring beam 10 away from the base rail 40 and can abut against the base rail 40. The level bubble 80 is arranged on the side of the measuring beam 10 away from the base rail 40. In a specific embodiment of the present application, the turnout point rail bottom gap measuring device in the present application needs to ensure that the measuring beam 10 is placed horizontally during use. Therefore, the setting of the adjusting bolt and the level bubble 80 can help to adjust the level of the measuring beam 10.

[0039] Optionally, the turnout point rail bottom gap measuring device further comprises a digital display module 90, which is arranged on the measuring crossbeam 10 and is respectively connected to the first probe part 31 and the second probe part 32. Such an arrangement enables the gap value to be displayed through the digital display module 90.

[0040] Furthermore, the first probe part 31 and the second probe part 32 or the digital display module 90 in the present application may have the functions of automatic data processing, storage and exporting, and after the measurement is completed, the gap values ​​on different slide bed plates 100 may be exported at one time.

[0041] Optionally, the first probe part 31 and the second probe part 32 are spaced at a fixed distance, which is determined only by the outer diameter of the displacement sensor. During measurement, the second probe part 32 is placed close to the bottom side of the pointed rail 50, and the measurement point of the first probe part 31 is located at the starting position of the intersection arc of the bottom of the rail. This ensures that the test results of different staff members are consistent.

[0042] In a specific embodiment of the present application, the measuring principle of the turnout point rail bottom gap measuring device in the present application is: the bottom gap measurement is achieved by measuring the height of the bottom of the point rail 50 relative to the slide bed 100, wherein the bottom gap measurement of the point rail 50 is located at the starting position of the bottom angle arc on the upper surface of the rail bottom. The reason for selecting this point as the measuring point is that the design geometric coordinates of the point rail 50 with different sections remain unchanged at this point, and the design height of this point from the top surface of the basic rail 40 is 112.7mm, which can be used as the measurement reference for the bottom of the point rail 50. The measurement point of the slide bed 100 is adjacent to the bottom of the point rail 50, and the design distance between the slide bed 100 and the top of the basic rail 40 is 132.9mm. Therefore, the distance difference between the two measuring points of the bottom of the point rail 50 and the slide bed should be 20.2mm. When the bottom of the rail has a gap, the measured distance difference will be higher than 20.2mm, and the value exceeding it is the gap value.

[0043] In the present application, by measuring the distances between the bottom of the slide bed plate 100 and the bottom of the point rail 50 and the top of the base rail 40, the relative height between the top surface of the bottom of the turnout point rail 50 and the slide bed plate 100 in actual service is obtained, and the gap between the bottom of the point rail 50 can be obtained by comparing it with the design value. The measuring device has a simple structure, high measurement accuracy and high measurement efficiency, which greatly reduces the workload on site.

[0044] From the above description, it can be seen that the above-mentioned embodiment of the utility model achieves the following technical effects: the turnout point rail bottom gap measuring device in the present application includes a measuring beam 10, a fixing assembly 20 and a measuring assembly 30. The fixing assembly 20 is detachably connected to one end of the measuring beam 10, and at least a part of the fixing assembly 20 can move relative to the measuring beam 10; the measuring assembly 30 is arranged at the other end of the measuring beam 10, and the measuring assembly 30 includes at least one first probe part 31 and at least one second probe part 32, the distance from the end of the first probe part 31 away from the measuring beam 10 to the measuring beam 10 is less than the distance from the end of the second probe part 32 away from the measuring beam 10 to the measuring beam 10, and there is an accommodation space for accommodating the base rail 40 and the point rail 50 between the fixing assembly 20 and the measuring assembly 30, and the fixing assembly 20 can abut against the base rail 40.

[0045] When using the turnout point rail bottom gap measuring device in the present application, since there is a storage space for accommodating the basic rail 40 and the point rail 50 between the fixing assembly 20 and the measuring assembly 30, and the fixing assembly 20 can abut against the basic rail 40, the positioning of the entire turnout point rail bottom gap measuring device can be achieved through the fixing assembly 20 to ensure the accuracy of the turnout point rail bottom gap measuring device. At the same time, since the measuring assembly 30 has a first probe part 31 and a second probe part 32, when in use, the first probe part 31 can be abutted against the upper surface of the bottom of the point rail 50 to measure the distance between the top of the basic rail 40 and the upper surface of the bottom of the point rail 50, and the second probe part 32 can be abutted against the upper surface of the slide bed plate 100 to measure the distance between the top of the basic rail 40 and the upper surface of the slide bed plate 100, so as to characterize the rail bottom gap amount according to the numerical difference measured by the first probe part 31 and the second probe part 32. Therefore, the turnout point rail bottom gap measuring device in the present application effectively solves the problem of insufficient accuracy and low efficiency in measuring the bottom gap of the railway turnout point rail 50 in the prior art.

[0046] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0047] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0049] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for measuring the gap between the bottom of a turnout rail, characterized in that: include: Measuring beam (10); a fixing assembly (20), the fixing assembly (20) being detachably connected to one end of the measuring beam (10), and at least a portion of the fixing assembly (20) being able to move relative to the measuring beam (10); A measuring component (30), the measuring component (30) being arranged at the other end of the measuring beam (10), the measuring component (30) comprising at least one first probe part (31) and at least one second probe part (32), the distance from one end of the first probe part (31) away from the measuring beam (10) to the measuring beam (10) being smaller than the distance from one end of the second probe part (32) away from the measuring beam (10) to the measuring beam (10), an accommodating space for accommodating a base rail (40) and a point rail (50) being provided between the fixing component (20) and the measuring component (30), and the fixing component (20) being capable of abutting against the base rail (40).

2. The turnout point rail bottom gap measuring device according to claim 1, characterized in that: The first probe part (31) and the second probe part (32) are arranged along the length direction of the measuring beam (10), the first probe part (31) and the second probe part (32) both extend along the thickness direction of the measuring beam (10), and the first probe part (31) is closer to the fixing assembly (20) than the second probe part (32).

3. The turnout point rail bottom gap measuring device according to claim 1, characterized in that: There are multiple first probe parts (31) and multiple second probe parts (32), and the multiple first probe parts (31) and multiple second probe parts (32) are divided into multiple groups, each group includes at least one first probe part (31) and at least one second probe part (32), and the multiple groups of probes are arranged at intervals along the width direction of the measuring beam (10).

4. The turnout point rail bottom gap measuring device according to claim 1, characterized in that: The first probe part (31) and the second probe part (32) are both one, and the distances from the first probe part (31) and / or the second probe part (32) to both ends of the measuring beam (10) in the width direction are the same.

5. The turnout point rail bottom gap measuring device according to claim 1, characterized in that: The measuring assembly (30) further comprises at least one probe mounting portion (33), wherein the probe mounting portion (33) is arranged on one side in the thickness direction of the measuring beam (10), and each of the probe mounting portions (33) is respectively provided with at least one of the first probe portions (31) and at least one of the second probe portions (32).

6. The turnout point rail bottom gap measuring device according to claim 1, characterized in that: The first probe part (31) and / or the second probe part (32) include a contact displacement sensor.

7. The turnout point rail bottom gap measuring device according to any one of claims 1 to 6, characterized in that: The fixing assembly (20) comprises at least two fixing plates (21) arranged at intervals, wherein the two fixing plates (21) are arranged at intervals along the width direction of the measuring beam (10), and one of the fixing plates (21) and the measuring beam (10) has a slide rail (60), and the other has a slide groove (61) that cooperates with the slide rail (60) and extends along the width direction of the measuring beam (10).

8. The turnout point rail bottom gap measuring device according to claim 7, characterized in that: The fixing plate (21) has an arc-shaped or step-shaped matching surface on one side facing the basic rail (40), and the fixing plate (21) abuts against the basic rail (40) via the matching surface.

9. The turnout point rail bottom gap measuring device according to any one of claims 1 to 6, characterized in that: The turnout point rail bottom gap measuring device also includes: at least one adjusting bolt (70), the adjusting bolt (70) being adjustably arranged on the measuring crossbeam (10), the adjusting bolt (70) passing through the measuring crossbeam (10) from a side of the measuring crossbeam (10) away from the base rail (40) and being capable of abutting against the base rail (40); and / or A level bubble (80) is arranged on a side of the measuring crossbeam (10) away from the stock rail (40).

10. The turnout point rail bottom gap measuring device according to any one of claims 1 to 6, characterized in that: The turnout point rail bottom gap measuring device further comprises a digital display module (90), wherein the digital display module (90) is arranged on the measuring crossbeam (10) and is respectively connected to the first probe part (31) and the second probe part (32) by signals.

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