Novel rail weighbridge limiting device

By adopting a connection structure of triangular base and central screw, combined with high-strength stainless steel material and fixing device, the shortcomings of the rail scale limit device in buffering and limit accuracy are solved, realizing stable and accurate weighing and extending the service life of the rail scale.

CN223783721UActive Publication Date: 2026-01-09ZHONGTIAN IRON & STEEL GRP (NANTONG) CO LTD +1
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Patent Information

Application Number
CN202520474072.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-09
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Traditional rail scale limit devices are insufficient in terms of buffering impact force and limiting accuracy. They are easily damaged and cannot meet the requirements of high-precision measurement. Furthermore, after long-term use, they are prone to uneven wear and jamming, which affects the normal operation and service life of the rail scale.

Method used

The system employs a connection structure consisting of two triangular bases and a central screw, combined with high-strength stainless steel material and a fixing device. Through the bidirectional thread design of the central screw and the cooperation of three limiting rods, it achieves precise positioning and effective buffering of the track scale, reducing the probability of detachment and enhancing structural stability.

Benefits of technology

It enables stable and accurate weighing of rail scales under complex working conditions, extends the service life of the device, reduces maintenance costs, and avoids deformation or damage caused by long-term impact.

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Abstract

The utility model relates to a novel rail weighbridge limiting device, and relates to the technical field of rail weighbridges. The device comprises two triangular bases and a center screw arranged between the triangular bases on the two sides, the two triangular bases are fixed to the two sides of a track respectively, and a center mounting hole allowing the end of the center screw to be mounted is formed in the center of each triangular base in a penetrating mode. The limiting device has the effects that impact force is effectively buffered, the limiting precision is improved, and the problems of uneven abrasion, clamping stagnation and the like which are likely to occur after long-term use are solved.
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Description

Technical Field

[0001] This application relates to the field of track scale technology, and in particular to a novel track scale limiting device. Background Technology

[0002] As an important weighing and measurement device in railway transportation, the accuracy and stability of rail scales are crucial for trade settlement and cargo management. During the operation of rail scales, the frequent passage of trains generates impacts and vibrations in various directions, which may cause displacement of the rail scale body, thus affecting weighing accuracy. Traditional rail scale limiting devices often have some defects. For example, some limiting structures cannot effectively buffer impact forces when limiting the displacement of the scale body, which can easily cause damage to the scale body or the limiting components themselves. The limiting accuracy of some limiting devices is not high enough to meet the requirements of high-precision measurement. Some devices are also prone to uneven wear and jamming after long-term use, affecting the normal operation of the rail scale, reducing its service life and increasing maintenance costs. Therefore, this application provides a new type of rail scale limiting device to solve the above problems. Summary of the Invention

[0003] In order to effectively buffer impact force, improve limiting accuracy, and improve the problems of uneven wear and jamming that easily occur after long-term use, this application provides a new type of track scale limiting device.

[0004] The novel track scale limiting device provided in this application adopts the following technical solution:

[0005] A novel track scale limiting device includes two triangular bases and a central screw rod disposed between the two triangular bases. The two triangular bases are respectively fixed on both sides of the track, and a central mounting hole for mounting the end of the central screw rod is provided through the center of each triangular base.

[0006] By adopting the above technical solution, two triangular bases are fixed on both sides of the track and connected by a central screw, which can achieve precise positioning of the track scale and effectively buffer the scale body when it is impacted, ensuring the normal operation of the track scale.

[0007] Preferably, the threads at both ends of the central screw are in opposite directions.

[0008] By adopting the above technical solution, the thread directions at both ends of the central screw are set in opposite directions, which can ensure the locking of lateral forces and reduce the probability of the central screw falling off.

[0009] Preferably, both triangular bases have corner mounting holes at their triangular positions, and each corner mounting hole is provided with a fixing device for fixing the triangular base to the track.

[0010] By adopting the above technical solution, the fixing device can further improve the connection stability between the triangular base and the track, thereby playing a more effective restraining role.

[0011] Preferably, the fixing device includes a bolt and a nut, the bolt passing through an angular mounting hole, and the nut being threaded onto one end of the bolt passing through the angular mounting hole.

[0012] By adopting the above technical solution, the fixing device is composed of bolts and nuts, which has a simple structure, is easy to fix, and has high convenience and practicality.

[0013] Preferably, the fixing device further includes a spring washer and a washer, both of which are sleeved on the periphery of the bolt. The spring washer is located between the end of the bolt and the triangular base, and the washer is located between the track and the nut.

[0014] By adopting the above technical solution, the use of spring washers and shims can effectively reduce the wear between the fixing device and the triangular base, thereby effectively ensuring structural strength and extending service life.

[0015] Preferably, the triangular base is further provided with three limiting rods, each of which has a circular hole connecting structure at both ends. The circular hole connecting structure is sleeved on the circumferential wall of the bolt and is located between the washer and the nut.

[0016] By adopting the above technical solution, the three limiting rods can interact with each other to restrict the longitudinal movement of the track scale when it is subjected to longitudinal force.

[0017] Preferably, the circular hole connection structures on the three limiting rods are superimposed and fixed to each other.

[0018] By adopting the above technical solution, the circular hole connection structure on the three limiting rods can be locked and fixed to each other to ensure the stability of the overall structure.

[0019] Preferably, the triangular base is made of high-strength stainless steel.

[0020] By adopting the above technical solution, the triangular base, made of high-strength stainless steel, can withstand the impact of train travel and the corrosion of the external environment, thus extending its service life.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. Two triangular bases are fixed to both sides of the track and connected by a central screw, which can achieve precise positioning of the rail scale and effectively buffer the scale body when it is impacted, ensuring the normal operation of the rail scale.

[0023] 2. The threads at both ends of the central screw are set in opposite directions, which can ensure the locking of lateral forces and reduce the probability of the central screw falling off;

[0024] 3. The three limiting rods are designed to interact with each other and restrict the longitudinal movement of the track scale when it is subjected to longitudinal force. The circular hole connection structure on the three limiting rods can lock each other to ensure the stability of the overall structure.

[0025] 4. When a train passes over a track scale, the scale body is subjected to impact force, resulting in a displacement tendency. This displacement tendency includes longitudinal and lateral impact forces. The triangular base and limiting rod can effectively limit the longitudinal force of the track scale, while the bidirectional thread design of the central screw can effectively avoid the lateral force of the track scale. These two structures can ensure that the track scale can perform stable and accurate weighing operations under complex working conditions. The device of this application can get rid of the problem of deformation or damage to the limiting base caused by long-term impact, facilitate maintenance and replacement operations, and reduce the limiting modification work of existing track scales. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a novel track scale limiting device according to an embodiment of this application.

[0027] Figure 2 This is a cross-sectional view of the device according to an embodiment of this application.

[0028] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0029] Explanation of reference numerals in the attached drawings: 1. Track; 2. Triangular base; 21. Center mounting hole; 22. Corner mounting hole; 3. Center screw; 4. Fixing device; 41. Bolt; 42. Nut; 43. Spring washer; 44. Washer; 5. Limiting rod; 51. Round hole connection structure. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0031] This application discloses a novel track scale limiting device. (Refer to...) Figure 1 The system includes triangular bases 2 installed on both sides of the track 1. In this embodiment, the triangular bases 2 are made of high-strength stainless steel to ensure that they can withstand the impact of train travel and the corrosion of the external environment. A central screw 3 is provided between the two triangular bases 2. A central mounting hole 21 for the central screw 3 is provided through the center of the triangular base 2. The threads at both ends of the central screw 3 are in opposite directions to ensure the locking of lateral forces and reduce the probability of the central screw 3 falling off the triangular base 2. The length of the central screw 3 needs to be selected according to the size of the track 1.

[0032] Reference Figure 1 , Figure 2 and Figure 3 The triangular base 2 has corner mounting holes 22 at each of its three corners. Each corner mounting hole 22 is equipped with a fixing device 4 for fixing the triangular base 2 to the track 1. The fixing device 4 includes a bolt 41, a nut 42, a spring washer 43, and a washer 44. The bolt 41 passes through the corner mounting hole 22, and the nut 42 is threaded to one end of the bolt 41 that passes through the corner mounting hole 22. The spring washer 43 and the washer 44 are both fitted around the periphery of the bolt 41. The spring washer 43 is located between the end of the bolt 41 and the triangular base 2, and the washer 44 is located between the track 1 and the nut 42 to reduce wear and extend service life.

[0033] Reference Figure 1 , Figure 2 and Figure 3 Three limiting rods 5 are also provided on the triangular base 2. Both ends of the limiting rods 5 are formed with round hole connecting structures 51. The round hole connecting structures 51 are sleeved on the periphery of the bolt 41. The three limiting rods 5 are connected end to end in pairs. The round hole connecting structures 51 are located between the washer 44 and the nut 42. The round hole connecting structures 51 of the three limiting rods 5 are superimposed and fixed to each other. When the track 1 is subjected to longitudinal force, the limiting rods 5 interact with each other to jointly restrict the longitudinal movement of the track 1.

[0034] The implementation principle of a novel track 1 scale limiting device in this application embodiment is as follows: Select a suitable installation position next to the railway track 1, ensure that the ground foundation is flat and solid, accurately measure the installation dimensions of the track 1 scale using measuring tools, and mark the installation positions of the triangular base 2 on the ground foundation on both sides of the track 1 according to the dimensions and design requirements of the track 1 scale.

[0035] Make a gap of appropriate depth and diameter at the marked position on the track 1 to match the center mounting hole 21 and corner mounting holes 22 on the triangular base 2. Place the triangular base 2 at the marked position so that the three corner mounting holes 22 of the triangular base 2 are aligned with the drilled screw holes. Then use the fixing device 4 to fix the triangular base 2 to the track 1.

[0036] Use cranes or other equipment to lift the track 1 scale to the predetermined installation position, so that the track 1 scale is accurately connected to the track 1, and make preliminary adjustments to the position of the track 1 scale so that it is roughly in the accurate horizontal and longitudinal and transverse positions.

[0037] On one side of the track 1 scale, pass the center bolt 41 through the pre-drilled hole on the side of the track 1 scale. Then, align the other end of the center screw 3 with the corresponding center mounting hole 21 on the triangular base 2 on the other side of the track 1. Use a wrench to slowly rotate the center screw 3 so that it is gradually screwed into the center mounting hole 21 of the triangular base 2. During the tightening process, use a measuring tool to monitor the lateral position of the track 1 scale to ensure that the track 1 scale does not deviate in the lateral direction. When the center screw 3 is tightened to a certain extent, check the lateral position of the track 1 scale again. If necessary, make fine adjustments until the lateral position of the track 1 scale is accurate. The center screw 3 effectively restricts the lateral movement of the track 1 scale.

[0038] Connect the circular hole connecting structure 51 of the three limiting rods 5 to the fixing device 4 to ensure that they are firmly connected and can restrain each other when subjected to longitudinal force. After installation, check whether the installation of the limiting rods 5 is firm and whether the mutual restraint structure is working properly to ensure that the longitudinal movement of the track 1 balance can be effectively restricted.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel track scale limit device, characterized in that: The utility model discloses a triangular base and the center screw rod between two sides triangular base, two triangular base are fixed on the both sides of track respectively, and the center position of triangular base is equipped with the center mounting hole for the end installation of center screw rod.

2. The novel track scale limiting device according to claim 1, characterized in that: The thread direction of the center screw rod is opposite.

3. The novel track scale limiting device according to claim 1, characterized in that: The corner mounting hole is arranged in the triangular position of two triangular bases, and the fixing device for fixing the triangular base and the track is arranged in each corner mounting hole.

4. The novel track scale limiting device according to claim 3, characterized in that: The fixing device includes a bolt and a nut, the bolt passes through the corner mounting hole, and the nut is threadedly connected to one end of the bolt passing through the corner mounting hole.

5. The novel track scale limiting device according to claim 4, characterized in that: The fixing device further includes a spring washer and a gasket, the spring washer and the gasket are sleeved on the wall of the bolt, the spring washer is located between the end of the bolt and the triangular base, and the gasket is located between the track and the nut.

6. The novel track scale limiting device according to claim 4, characterized in that: Three limiting rods are further arranged on the triangular base, a round hole connecting structure is arranged at the two ends of each limiting rod, the round hole connecting structure is sleeved on the wall of the bolt, and the round hole connecting structure is located between the gasket and the nut.

7. The novel track scale limiting device according to claim 6, characterized in that: The round hole connecting structures on the three limiting rods are fixed by mutual superposition.

8. The novel track scale limiting device according to claim 1, characterized in that: The triangular base is made of high-strength stainless steel.