Steel rail head profile measuring instrument

Abstract

The utility model relates to the field of steel rail measuring equipment, in particular to a steel rail head profile measuring instrument, which comprises a fixed seat, a main machine arranged on the fixed seat, a profile measuring module arranged on the main machine, a telescopic supporting rod, a first standard piece arranged on the fixed seat and used for being carried on a steel rail and capable of being positioned, and a second standard piece arranged on the telescopic supporting rod, one end of the telescopic supporting rod is installed on the fixing base, and the other end of the telescopic supporting rod is provided with a second reference piece which is used for being carried on a steel rail and can be positioned. The system further comprises a track gauge measuring module and / or an ultrahigh measuring module, the track gauge measuring module is used for measuring the distance between the two steel rails, and the ultrahigh measuring module is used for measuring the ultrahigh of the two steel rails. When the profile of the steel rail is measured, the steel rail gauge and / or steel rail superelevation data of the corresponding measuring point can be measured at the same time, the equipment cost is reduced, position deviation is not prone to occurring, and the effectiveness of the data can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of rail measuring equipment, in particular to a rail head profile measuring instrument. Background Art

[0002] Whether the rail's external dimensions, straightness and twisting meet the standards affects the safety, stability and speed of railway operation. Profile detection of rails can intuitively detect the overall appearance of the rails and various pathological conditions. Common morphological defects include rail corrugation, rail surface peeling, block falling, fat edges, etc.

[0003] In the prior art, for example, patent number CN206012612U discloses a rail head profile measuring instrument, which can effectively measure the profile and other parameters of the cross-sectional profile of the rail and perform profile analysis on the collected data.

[0004] Objective disadvantages of existing technology:

[0005] Although the rail profile measuring instrument under the prior art (CN206012612U) can measure the profile of the rail, it cannot measure the track gauge and / or superelevation parameters of the track. It needs to be equipped with additional equipment such as a track gauge to perform the measurement. This not only increases the equipment cost but also cannot ensure that the location where the profile is measured by the rail profile measuring instrument is consistent with the location where the track gauge and superelevation are measured by other equipment. Position deviation is prone to occur and the validity of the data cannot be guaranteed.

[0006] Therefore, it is necessary to provide a rail head profile measuring instrument with the function of measuring track gauge and / or superelevation, which can measure the track gauge and / or superelevation of the corresponding measuring point simultaneously when measuring the rail profile. Utility Model Content

[0007] The utility model aims to provide a rail head profile measuring instrument, which can measure the rail gauge and / or rail superelevation data of the corresponding measuring point simultaneously when measuring the rail profile.

[0008] The technical solution of the utility model is achieved in this way:

[0009] A rail head profile measuring instrument, comprising a fixed seat, a host computer arranged on the fixed seat, and a profile measuring module arranged on the host computer, wherein the fixed seat is provided with a first reference piece for being mounted on the rail and capable of positioning, and further comprising a telescopic support rod, one end of which is mounted on the fixed seat, and the other end of which is provided with a second reference piece for being mounted on the rail and capable of positioning;

[0010] It further includes a gauge measurement module and / or a superelevation measurement module. The gauge measurement module is used to measure the distance between two rails, and the superelevation measurement module is used to measure the superelevation of two rails.

[0011] Further, a functional aviation plug is provided on the host, and the interface of the gauge measurement module is electrically connected to the functional aviation plug.

[0012] Further, the gauge measurement module includes an AD acquisition module and a linear displacement sensor located on the telescopic support rod. The linear displacement sensor is electrically connected to the AD acquisition module.

[0013] Further, the AD acquisition module is integrated in the host, and the AD acquisition module is electrically connected to the linear displacement sensor through the functional aviation plug.

[0014] Further, the superelevation measurement module uses an inclination sensor. The inclination sensor is arranged on the fixed seat, the host or the telescopic support rod, and the inclination sensor is electrically connected to the host.

[0015] Further, the telescopic support rod includes a fixed sliding cylinder and a sliding support rod. One end of the fixed sliding cylinder is fixedly connected to the fixed seat, one end of the sliding support rod is arranged in the fixed sliding cylinder, and the sliding support rod can slide axially along the fixed sliding cylinder. The other end of the sliding support rod is provided with the second reference member.

[0016] Further, both the fixed sliding cylinder and the sliding support rod are made of metal materials, and an insulating layer is arranged between the fixed sliding cylinder and the sliding support rod.

[0017] Further, a folding joint capable of folding the sliding support rod into two parts is arranged in the middle of the sliding support rod, and a locking member is arranged on the folding joint to lock the sliding support rod in the folded state or the extended state.

[0018] Further, the locking member uses a locking screw or a locking bolt.

[0019] Further, the fixed seat has a fixed rod portion, and the fixed rod portion is fixedly connected to the fixed sliding cylinder and is coaxially arranged;

[0020] A handheld anti-slip sleeve is sleeved on the outside of the fixed rod portion or the fixed sliding cylinder.

[0021] Compared with the prior art, the beneficial effects of the present utility model are:

[0022] Based on the original rail head profile measuring instrument for measuring the rail profile, this application adds a gauge measurement module and / or a superelevation measurement module. The gauge measurement module is used to measure the distance between two rails (inner rail and outer rail), and the superelevation measurement module is used to measure the superelevation of the two rails, so as to measure the data of the rail gauge and / or the rail superelevation at the corresponding measurement points while measuring the rail profile. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic structural diagram of the rail head profile measuring instrument of the present invention.

[0025] In the figure:

[0026] 1 - First reference member; 2 - Main body; 3 - Functional aviation plug; 4 - Handheld anti-slip sleeve; 5 - Fixed sliding cylinder; 6 - Insulating layer; 7 - Folding joint; 8 - Locking member; 9 - Sliding support rod; 10 - Second reference member; 11 - Data aviation plug; 12 - Profile measurement module; 13 - Fixed seat; 1301 - Fixed rod part. Detailed Embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but only represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model 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 construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0031] In addition, terms such as "horizontal", "vertical", "overhanging", etc. do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" 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 communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0034] Embodiment

[0035] Referring to Figure 1 , this embodiment provides a rail head profile measuring instrument, which includes a fixed seat 13, a main unit 2 disposed on the fixed seat 13, and a profile measuring module 12 disposed on the main unit 2. The profile measuring module 12 is used for profile analysis and measurement of the rail, and its structure belongs to the prior art and will not be described in detail here.

[0036] A first reference member 1 for being mounted on the rail and capable of positioning is disposed on the fixed seat 13. The first reference member 1 is L-shaped. The first reference member 1 is snapped into the inner side (select the near gauge side) of the measured rail, and the first reference member 1 is in close contact with the rail top and the inner side of the measured rail at the same time.

[0037] It further includes a telescopic support rod. One end of the telescopic support rod is installed on the fixed seat 13, and the other end of the telescopic support rod is provided with a second reference member 10 which is used to be carried on the rail and can be positioned. The whole telescopic support rod can be adaptively adjusted according to different rail gauges. The second reference member 10 is L-shaped. The second reference member 10 is snapped into the inner side (select the near rail gauge side) of the measured rail, and the second reference member 10 is simultaneously in close contact with the rail top and the inner side of the measured rail. The first reference member 1 and the second reference member 10 are respectively snapped on two rails, and the whole instrument can be positioned and placed on the rails (rail head profile measuring instrument, referred to as the instrument for short).

[0038] It further includes a rail gauge measurement module and / or a superelevation measurement module. The rail gauge measurement module is applied to measure the distance between two rails, and the superelevation measurement module is used to measure the superelevation of two rails. When the instrument only includes a rail gauge measurement module, while measuring the rail profile, it can also meet the measurement of the rail gauge data at the corresponding measurement point; when the instrument only includes a superelevation measurement module, while measuring the rail profile, it can also meet the measurement of the superelevation data of the rail at the corresponding measurement point; when the instrument simultaneously includes a rail gauge measurement module and a superelevation measurement module, while measuring the rail profile, it can also meet the measurement of the rail gauge and the superelevation data of the rail at the corresponding measurement point. Therefore, on the basis of the original profile analysis function, there is no need to be equipped with additional rail gauge measurement equipment or superelevation measurement equipment (such as a rail gauge) for measurement, which not only reduces the equipment cost, but also can ensure that when measuring the rail profile, the location for simultaneously measuring the rail gauge and / or the superelevation of the rail at the corresponding measurement point is the same, and it is not easy to have a position deviation and can ensure the validity of the data.

[0039] In this embodiment, a rail gauge measurement module and a superelevation measurement module are simultaneously provided.

[0040] The host 2 is a terminal device for sending and receiving information. A functional aviation plug 3 is provided on the host 2. The interface of the rail gauge measurement module is electrically connected to the functional aviation plug 3. The rail gauge measurement module realizes connection and disconnection with the host 2 through insertion and disconnection with the functional aviation plug 3. It should be noted that the aviation plug wire is a special keyboard interface, mainly used for high-speed data transmission. It consists of two parts: a plug and a socket. Usually, the plug is connected to the output port of the device, and the socket is connected to the receiving port. The aviation plug wire has the characteristics of fast transmission speed, strong anti-interference ability, and stable data transmission. Compared with ordinary data lines, the transmission speed of the aviation plug wire is faster and can reach dozens of megabytes or even hundreds of megabytes.

[0041] Specifically, the gauge measurement module includes an AD acquisition module and a linear displacement sensor located on the telescopic support rod. The linear displacement sensor is electrically connected to the AD acquisition module. Among them, the AD acquisition module is used for AD acquisition. It should be noted that AD acquisition refers to the process of converting analog signals into digital signals, which is achieved through an analog-to-digital converter (ADC). It is a device that converts continuous variable analog signals into discrete digital signals. AD acquisition has a wide range of applications in data acquisition. For example, in single-chip microcomputer applications, AD acquisition is used to convert information from sensors or other analog signal sources into digital form for processing and analysis by microprocessors or other digital systems.

[0042] Preferably, the linear displacement sensor is arranged in the inner cavity of the telescopic support rod and displaces following its expansion and contraction.

[0043] In this embodiment, the AD acquisition module adopts a high-precision AD acquisition module, and the AD acquisition module is integrated in the host 2. The AD acquisition module is electrically connected to the linear displacement sensor through a functional aviation plug 3. When it is necessary to measure the gauge, the interface of the linear displacement sensor is connected to the functional aviation plug 3, so that the gauge measurement function can be performed. When measuring the gauge, since the resistance of the linear displacement sensor will change correspondingly when its displacement changes, the gauge value of the measured position can be calculated based on the change value of the resistance and the processing of the built-in algorithm of the host 2 system. Since the present invention mainly protects the overall structure of the instrument, the specific algorithm for the gauge is not disclosed, but the general process is as follows: The telescopic support rod is initially in a contracted state, which is the initial state. Define the two rails as the first rail and the second rail respectively. The first reference member 1 of the instrument is positioned and carried on the first rail. Since the linear displacement sensor is located on the telescopic support rod and displaces following its expansion and contraction, at this time, there is a fixed initial distance L1 between the linear displacement sensor and the first rail. Then, in order to position and carry the second reference member 10 on the second rail, the telescopic support rod is slowly extended from the contracted state and unfolded, so that the second reference member 10 is exactly positioned and carried on the second rail and in the ranging position. During this process, due to the displacement change of the linear displacement sensor, the linear displacement sensor measures the distance L2 from the initial position to the ranging position. Then, the actual gauge L between the two rails can be calculated through an algorithm based on the data of L1 and L2.

[0044] In this embodiment, the telescopic support rod includes a fixed sliding cylinder 5 and a sliding support rod 9. One end of the fixed sliding cylinder 5 is fixedly connected to the fixed seat 13. One end of the sliding support rod 9 is disposed inside the fixed sliding cylinder 5, and the sliding support rod 9 can slide axially along the fixed sliding cylinder 5. The other end of the sliding support rod 9 is provided with the second reference member 10. A linear displacement sensor can be disposed inside the fixed sliding cylinder 5 and connected to the sliding support rod 9, so that the linear displacement sensor can displace following the expansion and contraction of the sliding support rod 9. Alternatively, the linear displacement sensor is directly disposed inside the cavity of the sliding support rod 9.

[0045] The telescopic support rod as a whole is made of a hard and wear-resistant material. When both the fixed sliding cylinder 5 and the sliding support rod 9 are made of a metal material or other non-metal conductive materials, an insulating layer 6 needs to be provided between the fixed sliding cylinder 5 and the sliding support rod 9 to cut off the conduction between the fixed sliding cylinder 5 and the sliding support rod 9 and avoid short circuit due to conduction therebetween.

[0046] In a preferred implementation manner of this embodiment, a folding joint 7 capable of folding the sliding support rod 9 into two parts is provided in the middle of the sliding support rod 9, and a locking member 8 is provided on the folding joint 7, which can lock the sliding support rod 9 when it is in the folded state or the extended state. The locking member 8 is a locking screw or a locking bolt. When the instrument is not in use and is idle, the telescopic support rod can be folded through the folding joint 7 to reduce the occupied space and is also convenient to carry.

[0047] Preferably, the linear displacement sensor is disposed on one side of the folding joint 7 inside the telescopic support rod, and this side is close to the host 2. Whether the telescopic support rod is in the folded state or not, the position of the linear displacement sensor does not change, satisfying that only when the sliding support rod 9 extends, the linear displacement sensor will have a displacement change.

[0048] In this embodiment, the fixed seat 13 has a fixed rod portion 1301. The fixed rod portion 1301 is fixedly connected to the fixed sliding cylinder 5 and is coaxially arranged. A hand-held anti-slip sleeve 4 is sleeved outside the fixed rod portion 1301 or the fixed sliding cylinder 5. The hand-held anti-slip sleeve 4 can be a grip or a rubber sleeve.

[0049] In this embodiment, the ultra-high measurement module uses an inclination sensor. The inclination sensor is disposed on the fixed seat 13, the host 2 or the telescopic support rod, and the inclination sensor is electrically connected to the host 2. Preferably, the inclination sensor is disposed inside the host 2, and the inclination sensor is a high-precision inclination sensor.

[0050] Before measuring the rail profile, the first reference piece 1 and the second reference piece 10 need to be respectively clamped or positioned on two rails to achieve the positioning and placement of the whole instrument on the rails. After the instrument is positioned and placed, the gauge between the two rails can be measured by the gauge measurement module, and at the same time, the height difference between the two measured rails is converted into the angle value of the high-precision inclination sensor in the main unit 2. The high-precision inclination sensor directly converts the measured angle value into a voltage signal, and then enters the single-chip microcomputer in the main unit 2 after corresponding AD conversion, and combines the temperature information collected by the single-chip microcomputer for digital signal processing, compensates the measured value uploaded by the inclination sensor for temperature, and then combines the calculation formula to calculate the superelevation value (similarly, since the present invention mainly protects the overall structure of the instrument, the specific algorithm for superelevation is not disclosed).

[0051] Then, before measuring the profile, and after the instrument is positioned and placed, the measurement of the rail gauge and superelevation data can be completed. A data aviation plug 11 is also set on the main unit 2. After the instrument is positioned and adjusted, the profile can be measured through the main unit 2, and the data can be transmitted to the upper computer through the wired connection of the data aviation plug 11 or the wireless connection methods such as Bluetooth and wireless network to complete the storage of the profile measurement data.

[0052] The purpose of the present invention is to provide a rail head profile measuring instrument with the functions of measuring gauge and superelevation. The rail head profile measuring instrument is convenient to carry, convenient to read data, simple to operate, and can achieve low-power data communication. On the basis of being able to measure the rail profile, the instrument adds the functions of measuring gauge and superelevation, can measure the gauge and superelevation values of corresponding points while measuring the rail profile, and stores the measured gauge and superelevation data corresponding to the profile data. This new function can collect more data to analyze the track state without changing the original operation process. Therefore, it is believed that the rail head profile measuring instrument with the functions of measuring gauge and superelevation will gradually replace the previous products in the future profile measurement of railway lines and play a more important role in the safe operation of railways.

[0053] Principle of the invention:

[0054] By placing the rail head profile measuring instrument at the measured position, after the telescopic adjusting rod is adjusted to the appropriate position, the gauge at the measured position is calculated through the change amount of the high-precision linear displacement sensor, and the superelevation at the measured position is calculated through the change amount of the high-precision inclination sensor in the main unit 2, so as to obtain relevant line parameters such as profile, gauge and superelevation and save them. Then, through the upper computer software, operations such as data viewing and data analysis can be carried out to achieve the purpose of analyzing line parameters and judging line conditions.

[0055] The beneficial effects of the technical solution of the present invention are:

[0056] 1. The use of a high-precision linear displacement sensor, its corresponding supporting components, and a high-precision AD acquisition module enables the simultaneous measurement of the gauge while measuring the profile, increasing the scope of use of the equipment.

[0057] 2. The use of a high-precision inclination sensor and a high-precision AD acquisition module enables the simultaneous measurement of the superelevation while measuring the profile, increasing the scope of use of the equipment.

[0058] 3. Through the addition of these two functions, the applicability of the rail head profile measuring instrument for track measurement has been greatly improved. Without adding equipment and operation steps, the simultaneous measurement of multiple data is achieved, avoiding the problem of asynchronous data measured by other equipment for gauge and superelevation measurement, and also reducing the procurement cost of other equipment. It plays a very important role in the acquisition of track information and the subsequent analysis of track conditions.

[0059] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

[0060] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rail head profile measuring instrument, comprising a fixed seat (13), a main unit (2) arranged on the fixed seat (13), and a profile measuring module (12) arranged on the main unit (2), wherein a first reference member (1) for being mounted on a rail and capable of positioning is arranged on the fixed seat (13), and is characterized in that, It further includes a telescopic support rod. One end of the telescopic support rod is installed on the fixed seat (13), and the other end of the telescopic support rod is provided with a second reference member (10) for being mounted on the rail and capable of positioning. It further includes a gauge measurement module and / or a superelevation measurement module. The gauge measurement module is used to measure the distance between two rails, and the superelevation measurement module is used to measure the superelevation of two rails.

2. The rail head profile measuring instrument according to claim 1, characterized in that, A functional aviation plug (3) is provided on the main unit (2), and the interface of the gauge measurement module is electrically connected to the functional aviation plug (3).

3. The rail head profile measuring instrument according to claim 2, characterized in that, The gauge measurement module includes an AD acquisition module and a linear displacement sensor located on the telescopic support rod. The linear displacement sensor is electrically connected to the AD acquisition module.

4. The rail head profile measuring instrument according to claim 3, characterized in that, The AD acquisition module is integrated in the main unit (2), and the AD acquisition module is electrically connected to the linear displacement sensor through the functional aviation plug (3).

5. The rail head profile measuring instrument according to claim 1, characterized in that The superelevation measurement module uses an inclination sensor. The inclination sensor is arranged on the fixed seat (13), the main unit (2) or the telescopic support rod, and the inclination sensor is electrically connected to the main unit (2).

6. The rail head profile measuring instrument according to claim 1, characterized in that, The telescopic support rod includes a fixed sliding cylinder (5) and a sliding support rod (9). One end of the fixed sliding cylinder (5) is fixedly connected to the fixed seat (13), one end of the sliding support rod (9) is arranged in the fixed sliding cylinder (5), and the sliding support rod (9) can slide axially along the fixed sliding cylinder (5). The other end of the sliding support rod (9) is provided with the second reference member (10).

7. The rail head profile measuring instrument according to claim 6, characterized in that, Both the fixed sliding cylinder (5) and the sliding support rod (9) are made of metal materials, and an insulating layer (6) is arranged between the fixed sliding cylinder (5) and the sliding support rod (9).

8. The rail head profile measuring instrument according to claim 6, characterized in that, A folding joint (7) capable of folding the sliding support rod (9) into two parts is arranged in the middle of the sliding support rod (9), and a locking member (8) is arranged on the folding joint (7) to lock the sliding support rod (9) when it is in a folded state or an extended state.

9. The rail head profile measuring instrument according to claim 8, characterized in that The locking member (8) uses a locking screw or a locking bolt.

10. The rail head profile measuring instrument according to claim 6, characterized in that, The fixed seat (13) has a fixed rod portion (1301), and the fixed rod portion (1301) is fixedly connected to the fixed sliding cylinder (5) and coaxially arranged. A hand-held anti-slip sleeve (4) is sleeved outside the fixed rod portion (1301) or the fixed sliding cylinder (5).

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