High-precision portable wheel-rail force measuring device suitable for freight railway

Abstract

The utility model discloses a high-precision portable wheel-rail force measuring device suitable for a freight railway, which belongs to the technical field of wheel-rail force measurement, and is characterized by comprising a steel rail, a mounting structure is clamped on the outer wall of the steel rail, a rail stress sensor body is bolted on the inner side of the mounting structure, and the rail stress sensor body is connected with the rail stress sensor body. The bottom of the installation structure is in bolted connection with a fastening structure, the inner side of the bearing seat is in bolted connection with the outer side of the track stress sensor body, existing freight railway wheel-rail force measurement is often complex in equipment installation and difficult to adjust the position conveniently, the fitting degree of a measuring device and a steel rail is poor, and if the installation is not stable, the measuring device is not easy to adjust. A gap or poor contact may exist between a sensor and a rail, so that a measurement result is inaccurate, actual wheel-rail force cannot be truly reflected, and the accurate monitoring requirement for safe and efficient operation of a freight railway is difficult to meet.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel rail force measurement technical field, especially in high accuracy portable wheel rail force measuring device suitable for freight railway. BACKGROUND

[0002] Freight railway is a railway system specially used for transporting goods, has the advantages such as large traffic, low cost, energy saving and environmental protection, occupies an important position in modern logistics transportation, wheel rail force refers to the force between train wheel and rail, including vertical force, lateral force and longitudinal force, the size and change of these forces have a crucial influence on the safe operation and equipment life of railway system, wheel rail force needs to be measured, because accurate measurement of wheel rail force can provide key parameters for railway engineering design, help to optimize track structure and vehicle suspension system, improve the carrying capacity and operation stability of railway, at the same time, through monitoring wheel rail force, potential safety hazards such as wheel wear and rail fatigue can be found in time, effective maintenance measures can be taken to ensure the safe and reliable operation of freight railway, in addition, measuring wheel rail force can provide data support for train dynamics research, promote the continuous development and progress of railway transportation technology.

[0003] The existing freight railway wheel rail force measurement is often complex due to the installation of equipment, it is difficult to adjust the position conveniently, which may lead to poor fit of the measuring device and the rail, if the installation is not stable, there may be gaps or poor contact between the sensor and the track, resulting in inaccurate measurement results, which cannot truly reflect the actual wheel rail force, and it is difficult to meet the accurate monitoring needs of safe and efficient operation of freight railway.

[0004] Therefore, a high-precision portable wheel rail force measuring device suitable for freight railway is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high-precision portable wheel rail force measuring device suitable for freight railway, which can solve the problem that the existing freight railway wheel rail force measurement is often complex due to the installation of equipment, it is difficult to adjust the position conveniently, which may lead to poor fit of the measuring device and the rail, if the installation is not stable, there may be gaps or poor contact between the sensor and the track, resulting in inaccurate measurement results, which cannot truly reflect the actual wheel rail force, and it is difficult to meet the accurate monitoring needs of safe and efficient operation of freight railway.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-precision portable wheel rail force measuring device suitable for freight railway, comprising a rail, the outer wall of the rail is connected with a mounting structure, the inner side of the mounting structure is connected with a track stress sensor body, the bottom of the mounting structure is connected with a fastening structure;

[0007] The mounting structure comprises a bearing seat, a movable piece, a threaded hole block, a rotating screw piece and a limiting block, the inner side of the bearing seat is bolted with the outer side of a rail stress sensor body, the inner side of the bearing seat is movably connected with the outer side of the movable piece, the inner side of the movable piece is movably connected with the outer side of the rail stress sensor body, the top of the movable piece is fixedly connected with the bottom of the threaded hole block, the inner wall of the threaded hole block is threadedly connected with the outer wall of the rotating screw piece, the bottom of the rotating screw piece is fixedly connected with the top of the bearing seat, the bottom of the movable piece is bolted with the top of the limiting block, and the top of the limiting block is movably connected with the bottom of the bearing seat.

[0008] Preferably, the fastening structure comprises a connecting block, the top of the connecting block is bolted with the bottom of the bearing seat, and the outer side of the connecting block is slidably connected with a stabilizing shell.

[0009] Preferably, the bottom of the inner side of the stabilizing shell is fixedly connected with a supporting block, and the outer wall of the supporting block is rotatably connected with a bidirectional threaded rod.

[0010] Preferably, the outer wall of the bidirectional threaded rod is threadedly connected with connecting pieces on both sides, the top of the connecting piece is bolted with the bottom of the bearing seat.

[0011] Preferably, the two sides of the bearing seat are fixedly connected with mounting blocks, the number of the mounting blocks and the connecting blocks is four, and the bottom of the mounting block is bolted with the top of the connecting block.

[0012] Preferably, the left side of the bidirectional threaded rod and the top of the rotating screw piece are provided with internal hexagonal grooves, and the top of the threaded hole block is provided with a threaded hole.

[0013] Preferably, the left side of the bearing seat is provided with a rectangular hole, the left side of the movable piece is provided with a matching hole, the rectangular hole is communicated with the matching hole, and the rail stress sensor body penetrates through the rectangular hole and the matching hole in sequence and is in contact with the left side of the steel rail.

[0014] Preferably, the bottom of the bearing seat is provided with a plug-in hole, and the inner side of the plug-in hole is movably connected with the outer side of the movable piece.

[0015] Compared with the prior art, the mounting structure of the present application has the following advantages:

[0016] 1. The mounting structure provided in the present application provides a mounting base for the whole and the sensor, the rotating screw piece cooperates with the threaded hole block, can drive the movable piece to adjust flexibly, realizes stable clamping of the steel rail, ensures that the sensor is accurately attached to the steel rail, effectively improves the accuracy of the wheel-rail force measurement, the limiting block prevents the movable piece from moving excessively, and guarantees the installation stability.

[0017] 2、The fastening structure provided by the application is connected with the bearing seat through the connecting block, the two-way threaded rod is rotated, the two connecting pieces are synchronously moved, the translation adjustment of the bearing seat relative to the steel rail is realized, installation and adaptation to different track scenes are facilitated, the stable shell and the supporting block provide stable support for the two-way threaded rod, and the stability of the whole device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structural diagram of the high-precision portable wheel-rail force measuring device suitable for freight railways of the utility model;

[0019] Figure 2 It is a split diagram of the mounting structure of the utility model;

[0020] Figure 3 It is an overall diagram of the fastening structure of the utility model;

[0021] Figure 4 It is a bottom view of the mounting structure connecting the fastening structure of the utility model;

[0022] Figure 5 It is a moving diagram of the mounting structure cooperating with the fastening structure of the utility model.

[0023] In the drawings, 1, steel rail; 2, mounting structure; 21, bearing seat; 22, movable piece; 23, threaded hole block; 24, rotating screw piece; 25, limiting block; 3, track stress sensor body; 4, fastening structure; 41, connecting block; 42, stable shell; 43, supporting block; 44, two-way threaded rod; 45, connecting piece; 5, mounting block; 6, internal hexagonal groove; 7, threaded hole; 8, rectangular hole; 9, matching hole; 10, plug-in hole. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides technical schemes:

[0026] A high-precision portable wheel-rail force measuring device suitable for freight railways comprises a steel rail 1, the outer wall of the steel rail 1 is clamped with a mounting structure 2, the inner side of the mounting structure 2 is bolted with a track stress sensor body 3, and the bottom of the mounting structure 2 is bolted with a fastening structure 4.

[0027] The mounting structure 2 comprises a bearing seat 21, a movable piece 22, a threaded hole block 23, a rotating screw piece 24 and a limiting block 25, the inner side of the bearing seat 21 is bolted with the outer side of the rail stress sensor body 3, the inner side of the bearing seat 21 is movably connected with the outer side of the movable piece 22, the inner side of the movable piece 22 is movably connected with the outer side of the rail stress sensor body 3, the top of the movable piece 22 is fixedly connected with the bottom of the threaded hole block 23, the inner wall of the threaded hole block 23 is threadedly connected with the outer wall of the rotating screw piece 24, the bottom of the rotating screw piece 24 is fixedly connected with the top of the bearing seat 21, the bottom of the movable piece 22 is bolted with the top of the limiting block 25, and the top of the limiting block 25 is movably connected with the bottom of the bearing seat 21.

[0028] In the embodiment, the rail 1 is provided as a basic bearing component of railway transportation and is directly acted on by wheel-rail force, the rail stress sensor body 3 is provided to directly measure the wheel-rail force borne by the rail 1, the mounting structure 2 is installed in cooperation with the rail 1, can accurately perceive the stress change of the rail 1 under the action of the wheel of the freight train in real time, and converts the stress data into an electrical signal or other measurable signal output, thereby providing a data basis for subsequent wheel-rail force analysis, the mounting structure 2 is installed on the top of the fastening structure 4, the user can achieve translation adjustment of the mounting structure 2 through the fastening structure 4, the bearing seat 21 of the mounting structure 2 provides an installation basis for the entire mounting structure 2 and the rail stress sensor body 3, the movable piece 22 is provided, the threaded hole block 23 drives the movable piece 22 to move up and down in the bearing seat 21 by rotating the rotating screw piece 24, so that the mounting structure 2 can clamp the rail 1, the threaded hole block 23 provides a threaded connection support point for the rotating screw piece 24, and the movable piece 22 can move in cooperation with the bearing seat 21 by rotating the rotating screw piece 24, the limiting block 25 limits the movement of the movable piece 22 to prevent the movable piece 22 from moving excessively during adjustment, and after the mounting structure 2 is clamped to the rail 1, the user penetrates the rail stress sensor through the mounting structure 2 and contacts the rail 1.

[0029] Specifically, as shown in Figure 3 , Figure 4 , Figure 5 , the fastening structure 4 comprises a connecting block 41, the top of the connecting block 41 is bolted with the bottom of the bearing seat 21, and the outer side of the connecting block 41 is slidably connected with a stabilizing shell 42.

[0030] Specifically, as shown in Figure 3 , Figure 4 , Figure 5 , the bottom of the inner side of the stabilizing shell 42 is fixedly connected with a support block 43, and the outer wall of the support block 43 is rotatably connected with a bidirectional threaded rod 44.

[0031] Specifically, as shown in Figure 3 , Figure 4 ,Figure 5 As shown in the figure, the two sides of the outer wall of the bidirectional threaded rod 44 are threadedly connected with the connecting pieces 45, and the top of the connecting pieces 45 is bolted to the bottom of the bearing seat 21.

[0032] In this embodiment: the fastening structure 4 is provided, the connecting block 41 provides a mounting point for the bearing seat 21 in the mounting structure 2, the stabilizing shell 42 is provided as a support frame of the fastening structure 4, the connecting block 41 slides on the inner side of the stabilizing shell 42, the support block 43 is fixed on the inner bottom of the stabilizing shell 42 to provide a rotating support for the bidirectional threaded rod 44, and the bidirectional threaded rod 44 and the connecting pieces 45 connected with the outer wall thereof are provided. The user can rotate the bidirectional threaded rod 44 by using a tool to make the connecting pieces 45 on both sides move inward or outward at the same time, so as to achieve the effect of moving the bearing seat 21 closer to or farther away from the rail 1.

[0033] Specifically, as shown in the figure Figure 2 , Figure 4 The two sides of the bearing seat 21 are fixedly connected with the mounting blocks 5, the number of the mounting blocks 5 and the connecting blocks 41 is four, and the bottom of the mounting block 5 is bolted to the top of the connecting block 41.

[0034] Specifically, as shown in the figure Figure 2 , Figure 3 The left side of the bidirectional threaded rod 44 and the top of the rotating screw 24 are provided with an inner hexagonal groove 6, and the top of the screw hole block 23 is provided with a threaded hole 7.

[0035] In this embodiment: the mounting blocks 5 are provided, so that the bearing seat 21 can be mounted to the top of the connecting block 41, the inner hexagonal grooves 6 are provided on the bidirectional threaded rod 44 and the rotating screw 24, the operator can insert an inner hexagonal wrench into the inner hexagonal groove 6 to rotate the rotating screw 24 and the bidirectional threaded rod 44, so as to strengthen the fastening effect, the threaded hole 7 is provided to provide threaded connection for the rotating screw 24 through the screw hole block 23, and the position of the movable piece 22 can be adjusted by rotating the rotating screw 24, so that the bearing seat 21 cooperates with the movable piece 22 to achieve the effect of clamping the rail 1.

[0036] Specifically, as shown in the figure Figure 2 , Figure 4 The left side of the bearing seat 21 is provided with a rectangular hole 8, the left side of the movable piece 22 is provided with a matching hole 9, the rectangular hole 8 and the matching hole 9 are in communication, and the track stress sensor body 3 penetrates the rectangular hole 8 and the matching hole 9 in sequence and contacts the left side of the rail 1.

[0037] Specifically, as shown in the figure Figure 2 The bottom of the bearing seat 21 is provided with a plug-in hole 10, and the inner side of the plug-in hole 10 is movably connected with the outer side of the movable piece 22.

[0038] In the embodiment: the rectangular hole 8 opened by the bearing seat 21 and the matching hole 9 opened by the movable piece 22 provide a channel for the track stress sensor body 3 to install and contact the rail 1, and the insertion hole 10 opened at the bottom of the bearing seat 21 facilitates the cooperation of the movable piece 22 and the bearing seat 21, and realizes the installation and movement of the movable piece 22.

[0039] Working principle: in the use case of measuring the wheel-rail force of the freight railway rail 1, the wheel-rail force measuring device is based on the rail 1, the rail 1 is a direct object of the wheel-rail force as a railway transportation bearing part, the installation structure 2 cooperates with the rail 1 to provide a basic support for measurement, the user rotates the rotating screw 24, the screw hole block 23 drives the movable piece 22 to move up and down in the bearing seat 21, realizes the clamping of the rail 1, the limiting block 25 prevents the movable piece 22 from moving excessively, ensures the stability of the installation structure 2, after the installation structure 2 is installed, the track stress sensor body 3 is penetrated through the rectangular hole 8 and the matching hole 9, so that it contacts the rail 1, real-time senses the stress change of the rail 1 under the action of the freight train wheel, and converts it into a signal output, which is used for wheel-rail force analysis, the fastening structure 4 can realize the translation adjustment of the installation structure 2, the connecting block 41 provides an installation point for the bearing seat 21, the stable shell 42 serves as a support frame, the bidirectional threaded rod 44 in the inner wall of the rotating support block 43 is rotated, the two sides of the connecting piece 45 move inward or outward at the same time, drives the bearing seat 21 to approach or away from the rail 1, facilitates installation and adjustment, the installation block 5 is used for connecting the bearing seat 21 and the connecting block 41, the bidirectional threaded rod 44 and the inner hexagonal groove 6 at the top of the rotating screw 24 facilitate the rotation of the operator with an inner hexagonal wrench, enhance the fastening effect, realize high-precision measurement of the freight railway wheel-rail force.

[0040] The above is only a preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision portable wheel-rail force measuring device suitable for freight railways, comprising a steel rail (1), characterized in that: The outer wall of the steel rail (1) is clamped with a mounting structure (2), the inner side of the mounting structure (2) is bolted with a rail stress sensor body (3), and the bottom of the mounting structure (2) is bolted with a fastening structure (4); The mounting structure (2) comprises a bearing seat (21), a movable piece (22), a threaded hole block (23), a rotating screw piece (24) and a limiting block (25), the inner side of the bearing seat (21) is bolted with the outer side of the rail stress sensor body (3), the inner side of the bearing seat (21) is movably connected with the outer side of the movable piece (22), the inner side of the movable piece (22) is movably connected with the outer side of the rail stress sensor body (3), the top of the movable piece (22) is fixedly connected with the bottom of the threaded hole block (23), the inner wall of the threaded hole block (23) is threadedly connected with the outer wall of the rotating screw piece (24), the bottom of the rotating screw piece (24) is fixedly connected with the top of the bearing seat (21), the bottom of the movable piece (22) is bolted with the top of the limiting block (25), and the top of the limiting block (25) is movably connected with the bottom of the bearing seat (21).

2. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 1, characterized in that: The fastening structure (4) comprises a connecting block (41), the top of the connecting block (41) is bolted with the bottom of the bearing seat (21), and the outer side of the connecting block (41) is slidably connected with a stabilizing shell (42).

3. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 2, characterized in that: The bottom of the inner side of the stabilizing shell (42) is fixedly connected with a supporting block (43), and the outer wall of the supporting block (43) is rotatably connected with a bidirectional threaded rod (44).

4. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 3, characterized in that: The outer wall of the bidirectional threaded rod (44) is threadedly connected with a connecting piece (45) on both sides, and the top of the connecting piece (45) is bolted with the bottom of the bearing seat (21).

5. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 2, characterized in that: Both sides of the bearing seat (21) are fixedly connected with mounting blocks (5), the number of the mounting blocks (5) and the connecting blocks (41) is four, and the bottom of the mounting block (5) is bolted with the top of the connecting block (41).

6. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 3, characterized in that: The left side of the bidirectional threaded rod (44) and the top of the rotating screw piece (24) are provided with an inner hexagonal groove (6), and the top of the threaded hole block (23) is provided with a threaded hole (7).

7. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 1, characterized in that: The left side of the bearing seat (21) is provided with a rectangular hole (8), the left side of the movable piece (22) is provided with a matching hole (9), the rectangular hole (8) and the matching hole (9) are communicated, and the rail stress sensor body (3) penetrates the rectangular hole (8) and the matching hole (9) in sequence and contacts the left side of the steel rail (1).

8. The high-precision portable wheel-rail force measuring device suitable for freight railway of claim 1, characterized in that: The bottom of the bearing seat (21) is provided with a plug-in hole (10), and the inner side of the plug-in hole (10) is movably connected with the outer side of the movable piece (22).

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