Railway track gauge measuring device

Abstract

The utility model relates to the technical field of railway maintenance, in particular to a railway track gauge measuring device, which comprises a distance measuring adjusting plate, two groups of bearing seat cushion blocks are arranged below the distance measuring adjusting plate, a bolt penetrates between the top of each group of bearing seat cushion blocks and the distance measuring adjusting plate, and nuts are fixed at two ends of the bolt; the pressing spring is arranged on the periphery of the bolt in a sleeving mode and located between the bearing seat cushion block and the distance measurement adjusting plate, and the pressing spring can press the bearing seat cushion block downwards; the distance measuring shaft penetrates through the bottoms of the two sets of bearing seat cushion blocks, and distance measuring wheels are installed at the two ends of the distance measuring shaft, arranged on the railway track, capable of being tightly attached to the surface of the track and capable of rotating relative to the distance measuring shaft; and the laser range finder is mounted on the bearing seat cushion block. According to the utility model, the two laser range finders are arranged, so that when the pressing spring presses the bearing seat cushion block downwards, the range finding wheels at the two ends of the range finding shaft can be always kept on the railway track, the laser range finders can always accurately measure the required position, and the measurement accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway maintenance technical field, concretely relates to a railway line track gauge measuring device. BACKGROUND

[0002] Railway track gauge detection is one of the key factors of railway transportation safety and smooth operation. Inaccurate track gauge may cause train derailment and serious safety accidents. Uneven track gauge is easy to cause vehicle vibration, affecting passenger comfort and cargo safety. Improper track gauge is easy to increase the friction between the wheel and the track, accelerate equipment wear and tear, and increase maintenance costs. Therefore, the accurate measurement of track gauge is directly related to the driving safety of the train. The traditional track gauge detection mainly relies on manual measurement using a track gauge, which is simple to operate, but the precision is relatively low and the work efficiency is not high. Non-contact track gauge detection uses advanced technologies such as laser photography to realize real-time track gauge measurement. However, the up-and-down position between the existing technology laser photography related equipment and the railway track is easy to change, which affects the detection accuracy. SUMMARY

[0003] The utility model aims at overcoming the shortcomings of prior art, and proposes a railway line track gauge measuring device.

[0004] The utility model solves the technical problems by adopting the technical scheme:

[0005] A railway line track gauge measuring device, comprising:

[0006] The distance measuring adjusting plate is provided with two groups of bearing seat cushion blocks below, a bolt penetrates between the top of each group of bearing seat cushion blocks and the distance measuring adjusting plate, and nuts are fixed at both ends of the bolt;

[0007] The lower pressing spring is sleeved on the outer periphery of the bolt and located between the bearing seat cushion block and the distance measuring adjusting plate, and the lower pressing spring can press the bearing seat cushion block downward;

[0008] The distance measuring shaft penetrates the bottom of the two groups of bearing seat cushion blocks, distance measuring wheels are installed at both ends of the distance measuring shaft, the distance measuring wheels are placed on the railway track, can tightly adhere to the track surface and can rotate relative to the distance measuring shaft;

[0009] The laser range finder is installed on the bearing seat cushion block and located below the distance measuring shaft.

[0010] In the above technical scheme, the ranging wheel can always adhere to the steel rail under the pressing of the down pressing spring, so that the laser range finder is always located at a position with a specified distance from the upper surface of the rail, and the accuracy of the gauge measurement is ensured.

[0011] Further, the two groups of bearing seat pads are distributed on the two sides below the ranging adjustment plate.

[0012] Further, the top of the ranging adjustment plate is connected with the ranging support through a ranging rotating shaft, and the ranging support is connected with an external device (such as a detection trolley or a detection robot).

[0013] Further, the laser range finder is fixed on the bearing seat pad through the connecting rod.

[0014] Further, the ranging shaft is further provided with a group of guide wheel mechanisms at two ends, respectively, the guide wheel mechanism comprises a guide wheel fixed plate and a guide wheel, the guide wheel is installed on the guide wheel fixed plate and adheres to the inner side of the rail, the guide wheel fixed plate is sleeved on the ranging shaft, one side of the guide wheel fixed plate is provided with a baffle fixed on the ranging shaft, a pressure measuring spring is arranged between the baffle and the guide wheel fixed plate, and the pressure measuring spring is sleeved on the ranging shaft.

[0015] Further, a posture sensor is arranged on the ranging adjustment plate to return the parameters of the horizontal direction of the ranging adjustment plate.

[0016] Further, the laser range finder is arranged on the guide wheel fixed plate, so that the horizontal state of the ranging shaft and whether the guide wheel adheres to the rail to rotate can be detected during the gauge measurement.

[0017] The technical effect of the utility model is as follows:

[0018] Compared with the prior art, the utility model is provided with two laser range finders, and the two laser range finders are stably fixed on the bearing seat pads through the connecting rod. When the down pressing spring presses the bearing seat pad downward, it can be ensured that the ranging wheels at two ends of the ranging shaft always adhere to the railway track, so that the laser range finder can always accurately measure the required position, and the measurement accuracy is further improved, and meanwhile, the ranging wheels are also convenient to move on the track. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1The utility model discloses a railway line track gauge measuring device structure schematic view.

[0020] In the figure, 1, attitude sensor, 2, laser range finder, 3, pressure spring, 4, range adjustment plate, 5, bearing seat cushion block, 6, range rotary shaft, 7, range shaft, 8, down spring, 9, connecting rod, 10, range wheel, 11, range support, 12, guide wheel fixed plate, 13, guide wheel, 14, baffle. DETAILED DESCRIPTION

[0021] In order to make the utility model embodiment's purpose, technical scheme and advantage more clearly, below, combining with the drawing of specification, to the technical scheme in the utility model embodiment, clear, complete, is described.

[0022] Embodiment 1:

[0023] As Figure 1 The utility model discloses a railway line track gauge measuring device, including range adjustment plate 4, bearing seat cushion block 5, range shaft 7, laser range finder 2 and down spring 8. Bearing seat cushion block 5 sets two groups, is located range adjustment plate 4 below, distributes in range adjustment plate 4 below both sides, and the bolt is penetrated between range adjustment plate 4 and the top of each group bearing seat cushion block 5, and the nut is fixed at both ends of bolt, the bolt outer periphery is equipped with down spring 8, and down spring 8 is located between bearing seat cushion block 5 and range adjustment plate 4, and bearing seat cushion block 5 is pressed down by range adjustment plate 4 and down spring 8. Range shaft 7 penetrates two groups bearing seat cushion block 5 bottom, and the range wheel 10 is installed at range shaft 7 both ends, and the range wheel 10 is placed on railway track, can be closely attached track surface and can rotate relative to range shaft 7, to facilitate range shaft 7 to travel along intelligent robot on railway track. Each group bearing seat cushion block 5 is connected with a group laser range finder 2 by connecting rod 9, and the laser range finder 2 is located range shaft 7 below, and the range wheel 10 can always be attached on steel rail under the pressing of down spring 8, guarantees that laser range finder 2 is always located at 16 millimeters from the track upper surface, ensures the accuracy of track gauge measurement. Left laser range finder 2 is used to measure the distance M1 between the laser light source emission point of left laser range finder 2 and left track, and right laser range finder 2 is used to measure the distance M2 between the laser light source emission point of right laser range finder 2 and right track. The distance between two tracks is the sum of M1, M2 and the distance M3 between the laser light source emission points of two laser range finders 2.

[0024] The top of the ranging adjustment plate 4 is connected to the ranging bracket 11 via the ranging rotating shaft 6, and the ranging bracket 11 is connected to external equipment (such as a detection trolley or detection robot). In this embodiment, the laser rangefinder 2 is fixed to the bearing seat pad 5 via the connecting rod 9. The downward pressure spring 8 presses down on the bearing seat pad 5, so that the ranging wheels 10 at both ends of the ranging shaft 7 are always in contact with the rail, thereby keeping the laser rangefinder 2 always 16 mm away from the upper surface of the rail, improving the accuracy and stability of the measurement, and realizing dynamic detection of track gauge. A set of guide wheel mechanisms is also installed at both ends of the ranging shaft 7. The guide wheel mechanism includes a guide wheel fixing plate 12 and a guide wheel 13. The guide wheel 13 is installed on the guide wheel fixing plate 12 and fits against the inner side of the track. The guide wheel fixing plate 12 is sleeved on the ranging shaft 7. A baffle 14 is provided on one side of the guide wheel fixing plate 12 and fixed on the ranging shaft 7. A pressure spring 3 is provided between the baffle 14 and the guide wheel fixing plate. The pressure spring 3 is sleeved on the ranging shaft 7 and can compress the guide wheel fixing plate 12, so that it is always pressed against the inner side of the track. This helps to make the ranging shaft 7 perpendicular to the track and improve the accuracy and precision of track gauge measurement. An attitude sensor 1 is installed on the ranging adjustment plate 4 to transmit the horizontal parameters of the ranging adjustment plate 4. A laser rangefinder 2 is installed on the guide wheel fixing plate 12 to detect the horizontal state of the ranging shaft 7 and whether the guide wheel 13 is tightly fitted to the track during track gauge measurement.

[0025] In use, the track gauge measuring device is mounted on an existing inspection trolley or inspection robot via the ranging bracket 11. It can move with the inspection trolley to achieve dynamic track gauge detection, thereby improving the accuracy and stability of the measurement.

[0026] The above-described specific embodiments are merely specific examples of this utility model. The patent protection scope of this utility model includes, but is not limited to, the above-described specific embodiments. Any appropriate changes or modifications made by a person skilled in the art that conform to the claims of this utility model should fall within the patent protection scope of this utility model.

Claims

1. A railway track gauge measuring device, characterized in that, include: The distance measuring adjustment plate has two sets of bearing seat pads below it. Each set of bearing seat pads has a bolt running through it between the top of the distance measuring adjustment plate and the bolt. Nuts are fixed at both ends of the bolt. A compression spring is sleeved on the outer periphery of the bolt and located between the bearing seat pad and the distance measuring adjustment plate. The compression spring can press the bearing seat pad downward. A distance measuring shaft passes through the bottom of two sets of bearing seat pads. Distance measuring wheels are installed at both ends of the distance measuring shaft. The distance measuring wheels are placed on the railway track and can fit tightly against the track surface and rotate relative to the distance measuring shaft. The laser rangefinder is mounted on the bearing seat pad and located below the ranging axis.

2. The railway track gauge measuring device according to claim 1, characterized in that, The two sets of bearing seat pads are distributed on both sides below the distance measuring adjustment plate.

3. The railway track gauge measuring device according to claim 1, characterized in that, The top of the ranging adjustment plate is connected to the ranging bracket via a ranging pivot.

4. The railway track gauge measuring device according to claim 1, characterized in that, The laser rangefinder is fixed to the bearing seat pad by a connecting rod.

5. The railway track gauge measuring device according to any one of claims 1-4, characterized in that, A set of guide wheel mechanisms is also installed at both ends of the ranging axis. The guide wheel mechanism includes a guide wheel fixing plate and a guide wheel. The guide wheel is installed on the guide wheel fixing plate and fits against the inner side of the track. The guide wheel fixing plate is sleeved on the ranging axis. A baffle fixed on the ranging axis is provided on one side of the guide wheel fixing plate. A pressure measuring spring is provided between the baffle and the guide wheel fixing plate and is sleeved on the ranging axis.

6. The railway track gauge measuring device according to claim 5, characterized in that, An attitude sensor is installed on the ranging adjustment plate.

7. The railway track gauge measuring device according to claim 5, characterized in that, A laser rangefinder is mounted on the guide wheel mounting plate.

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