Pantograph carbon slide plate

Abstract

The utility model discloses a pantograph carbon slide plate which comprises a carbon slide plate body, a monitoring mechanism is arranged on the carbon slide plate body, and the monitoring mechanism comprises a monitoring circuit assembly, a first metal sheet and a second metal sheet, the first metal sheet and the second metal sheet are respectively connected with a monitoring circuit assembly, and when the carbon contact strip body is abnormally worn and the temperature rises, the first metal sheet is bent to be in contact with the second metal sheet so as to be communicated with the monitoring circuit assembly. The pantograph carbon slide plate has the advantages that the structure is simple and reliable, and abnormal abrasion of the carbon slide plate body can be monitored before thickness abrasion of the carbon slide plate body.

Description

Technical Field

[0001] This utility model relates to the field of rail transit equipment technology, and in particular to a pantograph carbon sliding plate. Background Technology

[0002] The pantograph carbon contactor directly contacts the overhead contact line on the top of the rail transit vehicle, providing a stable current for subway operation. Wear of the carbon contactor is unavoidable during train operation, and under normal conditions, the wear is uniform. However, factors such as the contact pressure between the pantograph and the contact line, the material of the carbon contactor, and the environment can cause abnormal wear, manifesting as bumps or grooves on the surface. Currently, most subway lines use metal-immersed contactors, with copper as the metal. When copper melts and precipitates, it forms hard spots. Dry friction between the contactor and the contact line generates an arc, leading to wire breakage and a vicious cycle of abnormal wear. Under abnormal wear conditions, the three-dimensional morphology of the carbon contactor surface becomes rugged and rough, resulting in poor contact conditions. Once abnormal wear occurs, the pantograph-contact line relationship deteriorates rapidly. If not controlled in time, the wear rate of the carbon contactor can increase by tens of times, exacerbating contact line wear and potentially affecting the normal operation of the line.

[0003] Current methods for monitoring the condition of carbon fiber slide plates (such as CN205871761U) primarily involve installing copper pipes near the point where the slide plate is nearing the end of its service life. These pipes are led out from both ends of the slide plate and connected to the air circuit. When the copper pipes wear down, the air pressure changes, triggering a signal. This monitoring method relies on a single copper pipe location, meaning it only sends a signal when the slide plate is worn out. This method can only detect whether the slide plate is worn out, not its wear and tear during use. Furthermore, current patents for carbon fiber slide plates mainly monitor changes in thickness, not whether abnormal wear has occurred. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a pantograph carbon slide plate with a simple and reliable structure that can detect abnormal wear of the carbon slide plate body before the thickness of the carbon slide plate body wears down.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A pantograph carbon slide plate includes a carbon slide plate body, on which a monitoring mechanism is provided. The monitoring mechanism includes a monitoring circuit assembly and a first metal plate and a second metal plate spaced apart along the width direction of the carbon slide plate body. The first metal plate and the second metal plate are respectively connected to the monitoring circuit assembly. When the carbon slide plate body experiences abnormal wear and temperature rise, the first metal plate bends and contacts the second metal plate to connect the monitoring circuit assembly.

[0007] As a further improvement to the above technical solution:

[0008] The carbon slide body has a receiving groove on one side, and the monitoring mechanism is embedded in the receiving groove.

[0009] The first metal sheet is attached to the side of the receiving groove closest to the carbon slide body, and the second metal sheet is attached to the side of the receiving groove away from the carbon slide body.

[0010] The monitoring mechanism is provided in multiple locations along the length of the carbon slide body.

[0011] The distance between two adjacent monitoring devices is 9.5 cm.

[0012] The carbon slide body is a copper-plated carbon slide, the melting point of the first metal sheet is lower than that of copper, and the melting point of the second metal sheet is higher than that of copper.

[0013] The first metal sheet is made of a copper-nickel alloy, and the second metal sheet is made of iron.

[0014] The length of the first metal sheet is 58 mm, and the length of the second metal sheet is 57 mm.

[0015] The second metal sheet has a trapezoidal shape that is narrower at the top and wider at the bottom.

[0016] The distance between the top of the first metal sheet and the second metal sheet is 10mm, and the distance between the first metal sheet and the bottom of the second metal sheet is 2mm.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. The pantograph carbon sliding plate of this utility model utilizes the characteristic of metal sheets softening and bending when heated. By connecting the circuit components through the contact between the first metal sheet and the second metal sheet, it can monitor whether abnormal wear occurs in the carbon sliding plate body. The structure is simple and reliable, and it can detect the occurrence of abnormal wear in the carbon sliding plate body before the thickness of the carbon sliding plate body wears off, preventing the wear from escalating, extending the service life of the carbon sliding plate body, and reducing maintenance costs.

[0019] 2. The pantograph carbon sliding plate of this utility model has multiple monitoring mechanisms set along the length of the carbon sliding plate body, which enables the monitoring of abnormal wear at various points on the carbon sliding plate body, making the monitoring more comprehensive.

[0020] 3. In the pantograph carbon sliding plate of this utility model, when the carbon sliding plate body wears normally, the first metal plate and the second metal plate also wear down and become shorter. The rigidity of the first metal plate becomes stronger. The second metal plate is a trapezoidal shape that is narrower at the top and wider at the bottom, which shortens the distance between the first metal plate and the second metal plate. This ensures that even after the first metal plate softens and bends due to wear and becomes shorter, it can still contact the second metal plate, resulting in high reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the pantograph carbon sliding plate of this utility model.

[0022] Figure 2 This is a top view of the pantograph carbon sliding plate of this utility model.

[0023] Figure 3 This is a front view of the monitoring mechanism in the pantograph carbon sliding plate of this utility model.

[0024] Figure 4 This is a front view of the monitoring mechanism for bending the first metal strip in the pantograph carbon sliding plate of this utility model.

[0025] The labels in the diagram represent: 1. Carbon slide body; 2. Monitoring mechanism; 3. First metal plate; 4. Second metal plate; 5. Monitoring circuit assembly; 6. Receiving groove. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] like Figures 1 to 4 As shown, the pantograph carbon slide plate of this embodiment includes a carbon slide plate body 1, a monitoring mechanism 2 on the carbon slide plate body 1, and a monitoring circuit assembly 5 and a first metal sheet 3 and a second metal sheet 4 spaced apart along the width direction of the carbon slide plate body 1. The first metal sheet 3 and the second metal sheet 4 are respectively connected to the monitoring circuit assembly 5. When the carbon slide plate body 1 experiences abnormal wear and temperature rise, the first metal sheet 3 bends and contacts the second metal sheet 4 to connect the monitoring circuit assembly 5.

[0031] In this embodiment, the pantograph carbon sliding plate provides power during train operation by contacting the overhead contact line with the carbon sliding plate body 1. The carbon sliding plate body 1 generates heat through friction during high-speed operation, causing its temperature to rise. As the temperature increases, the first metal sheet 3 softens and bends towards the second metal sheet 4. When the temperature rises to the point where abnormal wear of the carbon sliding plate body 1 occurs, the first metal sheet 3 contacts the second metal sheet 4 (e.g., ...). Figure 4 As shown, when the monitoring circuit component 5 is connected, the monitoring circuit component 5 will then issue an alarm signal, indicating that the carbon slide plate body 1 is experiencing abnormal wear. Workers can then take measures to prevent the continued occurrence of abnormal wear. In this embodiment, the pantograph carbon slide plate utilizes the characteristic of metal sheets softening and bending when heated. The circuit component 5 is connected through the contact between the first metal sheet 3 and the second metal sheet 4 to monitor whether the carbon slide plate body 1 is experiencing abnormal wear. The structure is simple and reliable, and it can detect abnormal wear of the carbon slide plate body 1 before the thickness of the carbon slide plate body 1 wears down, preventing further wear, extending the service life of the carbon slide plate body 1, and reducing maintenance costs.

[0032] Preferably, in this embodiment, the monitoring circuit component 5 includes a relay and an indicator light. When abnormal wear of the carbon slide body 1 is detected, the indicator light can issue an alarm signal.

[0033] Furthermore, in this embodiment, a receiving groove 6 is provided on one side of the carbon slide body 1, and the monitoring mechanism 2 is embedded in the receiving groove 6. The monitoring mechanism 2 is embedded in the receiving groove 6, making it less susceptible to damage or failure due to external environmental influences during train operation, thus ensuring structural reliability.

[0034] Furthermore, in this embodiment, the first metal sheet 3 is closely attached to the side of the receiving groove 6 closest to the carbon slide plate body 1, and the second metal sheet 4 is closely attached to the side of the receiving groove 6 away from the carbon slide plate body 1. The first metal sheet 3 being close to the carbon slide plate body 1 allows it to receive temperature changes of the carbon slide plate body 1 in a timely manner, thereby enabling monitoring and early warning; the second metal sheet 4 being away from the carbon slide plate body 1 results in a relatively lower temperature for the second metal sheet 4, preventing it from bending due to temperature changes.

[0035] Furthermore, in this embodiment, multiple monitoring mechanisms 2 are provided along the length of the carbon slide plate body 1. By providing multiple monitoring mechanisms 2 along the length of the carbon slide plate body 1, abnormal wear at various points on the carbon slide plate body 1 can be monitored, resulting in more comprehensive monitoring.

[0036] Furthermore, in this embodiment, the interval between two adjacent monitoring devices 2 is 9.5cm.

[0037] Furthermore, in this embodiment, the carbon slide plate body 1 is a copper-plated carbon slide plate. The melting point of the first metal sheet 3 is lower than that of copper, and the melting point of the second metal sheet 4 is higher than that of copper. When the carbon slide plate body 1 experiences abnormal wear and its temperature rises to the melting point of copper, the copper metal will melt and precipitate, forming hard spots and exacerbating the wear of the carbon slide plate body 1. Since the melting point of the first metal sheet 3 is lower than that of copper, the first metal sheet 3 can bend and contact the second metal sheet 4 before the copper metal melts and precipitates, providing an early warning and preventing the abnormal wear from worsening.

[0038] Furthermore, in this embodiment, the first metal sheet 3 is made of a copper-nickel alloy, and the second metal sheet 4 is made of iron. The melting point of copper is 1083°C, which is slightly higher than the melting point of the copper-nickel alloy (1080°C) and lower than the melting point of iron (1538°C).

[0039] Furthermore, in this embodiment, the length of the first metal sheet 3 is 58mm, and the length of the second metal sheet 4 is 57mm. The first metal sheet 3 is slightly longer than the second metal sheet 4, which ensures that the first metal sheet 3 can make stable contact with the second metal sheet 4 when tilted, thus triggering the circuit assembly 5.

[0040] Furthermore, in this embodiment, the second metal sheet 4 has a trapezoidal shape that is narrower at the top and wider at the bottom. When the carbon slide body 1 wears down normally, the first metal sheet 3 and the second metal sheet 4 also wear down, becoming shorter in length. The rigidity of the first metal sheet 3 becomes stronger. By using the trapezoidal shape of the second metal sheet 4, which is narrower at the top and wider at the bottom, the distance between the first metal sheet 3 and the second metal sheet 4 is shortened. This ensures that even after the first metal sheet 3 softens and bends due to wear and becomes shorter, it can still contact the second metal sheet 4, resulting in high reliability.

[0041] Furthermore, in this embodiment, the distance between the top of the first metal sheet 3 and the second metal sheet 4 is 10mm, and the distance between the top of the first metal sheet 3 and the bottom of the second metal sheet 4 is 2mm.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the spirit and technical solution of the present utility model. Therefore, any simple modifications, equivalent substitutions, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pantograph carbon sliding plate, characterized in that: The device includes a carbon slide body (1), on which a monitoring mechanism (2) is provided. The monitoring mechanism (2) includes a monitoring circuit assembly (5) and a first metal sheet (3) and a second metal sheet (4) spaced apart along the width direction of the carbon slide body (1). The first metal sheet (3) and the second metal sheet (4) are respectively connected to the monitoring circuit assembly (5). When the carbon slide body (1) experiences abnormal wear and temperature rise, the first metal sheet (3) bends and contacts the second metal sheet (4) to connect the monitoring circuit assembly (5).

2. The pantograph carbon sliding plate according to claim 1, characterized in that: The carbon slide body (1) has a receiving groove (6) on one side, and the monitoring mechanism (2) is embedded in the receiving groove (6).

3. The pantograph carbon sliding plate according to claim 2, characterized in that: The first metal sheet (3) is attached to the side of the receiving groove (6) close to the carbon slide body (1), and the second metal sheet (4) is attached to the side of the receiving groove (6) away from the carbon slide body (1).

4. The pantograph carbon sliding plate according to claim 1, characterized in that: The monitoring mechanism (2) is provided in multiple ways along the length of the carbon slide body (1).

5. The pantograph carbon sliding plate according to claim 4, characterized in that: The distance between two adjacent monitoring units (2) is 9.5 cm.

6. The pantograph carbon sliding plate according to claim 1, characterized in that: The carbon slide body (1) is a copper-plated carbon slide, the melting point of the first metal sheet (3) is lower than that of copper, and the melting point of the second metal sheet (4) is higher than that of copper.

7. The pantograph carbon sliding plate according to claim 6, characterized in that: The first metal sheet (3) is made of a copper-nickel alloy, and the second metal sheet (4) is made of iron.

8. The pantograph carbon sliding plate according to claim 1, characterized in that: The length of the first metal sheet (3) is 58 mm, and the length of the second metal sheet (4) is 57 mm.

9. The pantograph carbon sliding plate according to any one of claims 1 to 8, characterized in that: The second metal sheet (4) is trapezoidal in shape, narrow at the top and wide at the bottom.

10. The pantograph carbon sliding plate according to claim 9, characterized in that: The distance between the top of the first metal sheet (3) and the second metal sheet (4) is 10 mm, and the distance between the first metal sheet (3) and the bottom of the second metal sheet (4) is 2 mm.

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