CN216791050U - Wear measuring device of subway vehicle pantograph - Google Patents

Wear measuring device of subway vehicle pantograph Download PDF

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Publication number
CN216791050U
CN216791050U CN202220171416.XU CN202220171416U CN216791050U CN 216791050 U CN216791050 U CN 216791050U CN 202220171416 U CN202220171416 U CN 202220171416U CN 216791050 U CN216791050 U CN 216791050U
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CN
China
Prior art keywords
pantograph
dial indicator
flat plate
frame
measuring
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Active
Application number
CN202220171416.XU
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Chinese (zh)
Inventor
沈钢
凌浩
陈剑
何立宏
宋建同
王俊康
毛腾
朱兵
杨辰
徐华阳
袁超
解顺康
潘晓光
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No1 Operation Branch Of Suzhou Rail Transit Group Co ltd
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No1 Operation Branch Of Suzhou Rail Transit Group Co ltd
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Priority to CN202220171416.XU priority Critical patent/CN216791050U/en
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Abstract

The utility model discloses a wear measuring device of a metro vehicle pantograph, which is characterized in that: the pantograph testing device comprises a fixed frame and a measuring frame, wherein the fixed frame is provided with a pair of clamping bodies and two guide rails, the pair of clamping bodies are respectively clamped on a pantograph to be tested, the two guide rails are positioned at two sides of the pantograph to be tested, and two ends of the guide rails are respectively connected to the clamping bodies; the measuring frame is arranged on the two guide rails in a crossing mode and is in sliding connection with the guide rails, the measuring frame is provided with a flat plate portion located above a pantograph to be measured, a long strip-shaped through hole perpendicular to the length direction of the pantograph to be measured is formed in the flat plate portion, a dial indicator mounting frame is arranged, the dial indicator mounting frame is in sliding connection with the flat plate portion, the sliding direction is consistent with the length direction of the long strip-shaped through hole, a dial indicator is connected to the dial indicator mounting frame, and a measuring rod of the dial indicator penetrates through the long strip-shaped through hole. The utility model has convenient use, reduces the measurement error caused by manual selection and ensures the measurement accuracy.

Description

Wear measuring device of subway vehicle pantograph
Technical Field
The utility model relates to a measuring device, in particular to a device for measuring the abrasion condition of a pantograph of a metro vehicle.
Background
The subway vehicle obtains electric energy from a contact net by utilizing a pantograph on the roof of the subway vehicle to draw the train to run. The pantograph is mounted on the roof of a vehicle through an insulator, and is usually a hinged mechanical component, when the pantograph is lifted, a carbon slide bar on the surface of the pantograph is in direct contact with a contact network lead, and current is taken from the contact network lead.
The wear surface of the subway pantograph can be continuously worn in long-term work, and pits and unsmooth surfaces appear. When the abrasion of the wear surface of the pantograph reaches a limit value of 26.5mm, the wear surface needs to be replaced in time, otherwise, the wear surface is worn through, so that the contact net is abraded, the maintenance cost is increased, and safety accidents are easily caused.
At present, the carbon slide bar abrasion is mainly measured by a simple vernier caliper. Firstly, a measurer carries out manual observation, selects a plurality of detection points for detection, and leads the contact surface of the vernier caliper and the wear surface of the pantograph to reach 2/3 of the width, and the measured data is the current quantity of the carbon slide bar and the base. When the measured data is less than or equal to 26.5mm, the carbon slide bar is replaced. However, in the same vertical plane, the actual force is not uniform, and the wear condition is different. The wear surface of the pantograph is a continuous curved surface and has different longitudinal surface wear degrees. The method brings great challenges to the precision of the traditional vernier caliper measuring method, and the data with the largest abrasion loss on the same longitudinal plane cannot be measured. Secondly, only rely on the observation of survey crew to select the measuring point, easily miss survey wearing and tearing the most point, its artificial influence factor is great.
Therefore, if a simple wear measurement device can be provided to assist in the wear measurement of the pantograph, it would be advantageous to detect the pantograph so as to replace the pantograph reaching the wear limit in time.
Disclosure of Invention
The utility model aims to provide a wear measuring device for a pantograph of a metro vehicle, which is used for measuring the wear of the pantograph.
In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows: the wear measuring device for the pantograph of the metro vehicle comprises a fixed frame and a measuring frame, wherein the fixed frame is provided with a pair of clamping bodies and two guide rails, the pair of clamping bodies are respectively clamped on the pantograph to be measured, the two guide rails are positioned at two sides of the pantograph to be measured, and two ends of each guide rail are respectively connected to the clamping bodies; the measuring rack is spanned on the two guide rails and is connected with the guide rails in a sliding manner, the measuring rack is provided with a flat plate part positioned above the pantograph to be measured, a long strip-shaped through hole vertical to the length direction of the pantograph to be measured is formed in the flat plate part, a dial indicator mounting frame is arranged, the dial indicator mounting frame is connected with the flat plate part in a sliding manner, the sliding direction is consistent with the length direction of the long strip-shaped through hole, a dial indicator is connected onto the dial indicator mounting frame, and a measuring rod of the dial indicator is arranged in the long strip-shaped through hole in a penetrating manner.
During the use, thereby whole measuring rack can slide along guide rail length direction and adjust the position for pantograph length direction, thereby the percentage table mounting bracket can slide along the flat part and fix a position and adjust the transverse position for the pantograph, and the percentage table removes along with the percentage table mounting bracket, and its measuring stick passes rectangular form through-hole, and the measuring head contact of measuring stick is waited to examine the surface and is obtained the detection data. The carbon slide bar surface of the whole pantograph can be conveniently measured at any position through sliding in two directions.
In the technical scheme, the clamp body is composed of a clamping base and a strong magnetic clamp, the clamping base is provided with a magnetic conductive substrate and a pair of fixing seats positioned on two sides, a guide rail fixing groove is formed in each fixing seat, and a pantograph fixing position is formed between each fixing seat and the magnetic conductive substrate; the strong magnetic clamp is composed of a connecting plate and a pair of sliding columns, strong magnets are arranged at the bottoms of the sliding columns, limiting nuts are arranged at the tops of the sliding columns, and reset springs are arranged between the limiting nuts and the connecting plate; the strong magnet attracts the magnetic conduction substrate to form a clamp body.
According to the further technical scheme, a step is arranged on the inner side of the fixed seat on one side, and the upper surface of the step forms a zero calibration position of the dial indicator. Before measurement, the measuring frame is moved to the position close to the corresponding position of the clamp body, then the dial indicator is adjusted to be in contact with the upper surface of the step, and zero calibration of the dial indicator is carried out to ensure the consistency of measurement and judgment.
In the technical scheme, the measuring frame is provided with a flat plate and limiting columns fixed at two ends of the flat plate, and the distance between the limiting columns is matched with the distance between the outer surfaces of the two guide rails.
According to the preferred technical scheme, two limiting columns are arranged at two ends of the flat plate respectively.
In the above technical scheme, the limit column is connected to the flat plate through a fixing bolt.
According to the preferable technical scheme, the dial indicator mounting frame is provided with a through hole which is matched with the flat plate part in size, the flat plate part of the measuring frame penetrates through the through hole of the dial indicator mounting frame, and the dial indicator mounting frame is in sliding connection with the flat plate part of the measuring frame through the through hole.
The top of the dial indicator mounting rack is provided with a screw hole, the dial indicator is fixed on a mounting plate, and the mounting plate is fixed with the screw hole of the dial indicator mounting rack through a screw.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the measuring device provided by the utility model is directly clamped on the pantograph through the pair of clamping bodies for detection, and has the advantages of simple structure, convenience in use and high working efficiency;
2. the device can measure all point positions on the surface of the carbon slide bar, can ensure the accuracy of measurement when the surface of the carbon slide bar is abraded unevenly, and reduces the measurement error caused by manual selection;
3. the strong magnetic clamp can further simplify the fixing operation of the measuring device and improve the working efficiency.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a cross-sectional expanded view in the direction A-A of FIG. 1;
FIG. 3 is a schematic view of the clamping base;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of a strong magnetic chuck;
FIG. 6 is a top view of the connection plate of FIG. 5;
FIG. 7 is a schematic structural view of a measuring stand;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a schematic diagram of the structure of the dial indicator mounted on the measuring stand;
fig. 10 is a sectional view B-B of fig. 9.
Wherein: 1. a measuring frame; 2. a clip body; 3. a pantograph to be tested; 4. a guide rail; 5. a carbon slider; 6. clamping a base; 7. strongly magnetic clamping; 8. a magnetically conductive substrate; 9. a fixed seat; 10. a guide rail fixing groove; 11. fixing the electric bow; 12. correcting zero position of the dial indicator; 13. a connecting plate; 14. a traveler; 15. strong magnets; 16. a return spring; 17. a flat plate; 18. a limiting column; 19. a strip-shaped through hole; 20. a dial indicator; 21. a dial indicator mounting rack; 22. a through hole; 23. mounting a plate; 24. and a screw hole.
Detailed Description
The utility model is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1, the wear measuring device for the pantograph of the metro vehicle comprises a fixed frame and a measuring frame 1, wherein the fixed frame is provided with a pair of clamping bodies 2 and two guide rails 4, the pair of clamping bodies 2 are respectively clamped on a pantograph 3 to be measured, the two guide rails 4 are positioned at two sides of the pantograph to be measured, and two ends of the guide rails are respectively connected to the clamping bodies 2; the area enclosed by the clamp body 2 and the guide rail 4 is located above the carbon slide 5 of the pantograph to be tested.
Referring to fig. 2, the clamp body is composed of a clamping base 6 and a strong magnetic clamp 7, and the clamping base and the strong magnetic clamp are connected to form the clamp body around a pantograph to be received.
Referring to fig. 3 and 4, the clamping base has a magnetic conductive substrate 8 and a pair of fixing seats 9 located at both sides, a guide rail fixing groove 10 is formed on the fixing seat 9, and a pantograph fixing position 11 is formed between the two fixing seats 9 and the magnetic conductive substrate 8. A step is arranged on the inner side of one fixed seat, and the upper surface of the step forms a zero calibration position 12 of the dial indicator.
Referring to fig. 5 and 6, the strong magnetic clamp is composed of a connecting plate 13 and a pair of sliding columns 14, the bottom of each sliding column 14 is provided with a strong magnet 15, the top of each sliding column is provided with a limit nut, and a return spring 16 is arranged between each limit nut and the connecting plate; the strong magnet 15 attracts the magnetic conductive substrate 8 to form a clamp.
Referring to fig. 7 and 8, the measuring stand has a flat plate 17 and two position-limiting posts 18 fixed at two ends of the flat plate, in this embodiment, two position-limiting posts 18 are respectively arranged at two ends, and each position-limiting post 18 is connected to the flat plate 17 through a fixing bolt.
As shown in fig. 1, the distance between the limiting columns is matched with the distance between the outer surfaces of the two guide rails, so that the measuring rack 1 is spanned on the two guide rails 4 and is connected with the guide rails 4 in a sliding manner, and the flat plate 17 is provided with a long-strip-shaped through hole 19 perpendicular to the length direction of the pantograph to be measured.
Referring to fig. 9 and 10, the dial indicator mounting frame 21 has a through hole 22 matched with the flat plate 17 in size, the flat plate 17 of the measuring frame is arranged in the through hole 22 of the dial indicator mounting frame in a penetrating manner, and the dial indicator mounting frame is in sliding connection with the flat plate of the measuring frame through the through hole.
As shown in fig. 9, the dial indicator mounting bracket 21 has a screw hole 24 at the top thereof, the dial indicator 20 is fixed on a mounting plate 23, and the mounting plate 23 is fixed with the screw hole 24 of the dial indicator mounting bracket by a screw.
In use, the following steps may typically be included:
1. firstly, a clamping base is arranged below a pantograph to be tested and is tightly attached to the bottom of the pantograph;
2. pressing down a strong magnet clamp from the upper part of the pantograph, respectively adsorbing a bottom strong magnet on a clamp base (corresponding to the position E, F in the figure 4), and adjusting a top bolt of the strong magnet clamp to enable the strong magnet clamp to be attached to the pantograph;
3. respectively placing the two guide rails in the two side fixing positions;
4. the dial indicator measuring frame penetrates through a through hole below the dial indicator rack, so that the dial indicator rack can move on the measuring frame, and the dial indicator is installed at a specified position of the rack;
5. placing the dial indicator measuring frame on the guide rail, so that the dial indicator measuring frame can move left and right without shaking;
6. moving the measuring frame to the vicinity of the zero calibration position of the dial indicator, and pressing a zero calibration button of the dial indicator after the probe of the dial indicator touches the plane of the zero calibration position;
7. after the dial indicator is calibrated to zero, the abrasion of any position of the carbon slide bar can be measured.
The measurement test was carried out using the apparatus of this example, and the results were as follows:
note: in the table, 57 in 57-25.05 is the height of the original carbon slide and the base, 25.05 is the measured data, and the actual size of the carbon slide is obtained by subtracting the height of the original carbon slide and the height of the base from each other.
In the comparison of wear loss data of the pantograph, the wear loss data cannot be accurately measured by the original measuring mode on the same vertical plane. The real situation of the wear of the pantograph can be accurately measured by adopting surface measurement of the improved measuring device, the data is more accurate than the original measuring mode, and the design and measurement precision requirements of the device are met. The subway vehicle pantograph carbon slide bar can not be subjected to online operation of unqualified equipment caused by artificial measurement errors.

Claims (8)

1. The utility model provides a wear and tear measuring device of railcar pantograph which characterized in that: the pantograph detection device comprises a fixed frame and a measuring frame, wherein the fixed frame is provided with a pair of clamping bodies and two guide rails, the pair of clamping bodies are respectively clamped on a pantograph to be detected, the two guide rails are positioned at two sides of the pantograph to be detected, and two ends of each guide rail are respectively connected to the clamping bodies; the measuring rack is spanned on the two guide rails and is connected with the guide rails in a sliding manner, the measuring rack is provided with a flat plate part positioned above the pantograph to be measured, a long strip-shaped through hole vertical to the length direction of the pantograph to be measured is formed in the flat plate part, a dial indicator mounting frame is arranged, the dial indicator mounting frame is connected with the flat plate part in a sliding manner, the sliding direction is consistent with the length direction of the long strip-shaped through hole, a dial indicator is connected onto the dial indicator mounting frame, and a measuring rod of the dial indicator is arranged in the long strip-shaped through hole in a penetrating manner.
2. The wear measuring device of a pantograph of a subway vehicle according to claim 1, wherein: the clamping body is composed of a clamping base and a strong magnetic clamp, the clamping base is provided with a magnetic conductive substrate and a pair of fixing seats positioned on two sides, a guide rail fixing groove is formed in each fixing seat, and a pantograph fixing position is formed between each two fixing seats and the magnetic conductive substrate; the strong magnetic clamp is composed of a connecting plate and a pair of sliding columns, strong magnets are arranged at the bottoms of the sliding columns, limiting nuts are arranged at the tops of the sliding columns, and reset springs are arranged between the limiting nuts and the connecting plate; the strong magnet attracts the magnetic conduction substrate to form a clamp body.
3. The wear measuring device of a pantograph of a subway vehicle according to claim 2, wherein: the inner side of the fixed seat on one side is provided with a step, and the upper surface of the step forms a zero calibration position of the dial indicator.
4. The wear measuring device of a pantograph of a subway vehicle according to claim 1, wherein: the measuring frame is provided with a flat plate and limiting columns fixed at two ends of the flat plate, and the distance between the limiting columns is matched with the distance between the outer surfaces of the two guide rails.
5. The wear measuring device of a pantograph of a subway vehicle according to claim 4, wherein: two ends of the flat plate are respectively provided with two limiting columns.
6. The wear measuring device of a pantograph of a subway vehicle as claimed in claim 4, wherein: the limiting column is connected to the flat plate through a fixing bolt.
7. The wear measuring device of a pantograph of a subway vehicle as claimed in claim 4, wherein: the dial indicator mounting frame is provided with a through hole matched with the flat plate part in size, the flat plate part of the measuring frame penetrates through the through hole of the dial indicator mounting frame, and the dial indicator mounting frame and the flat plate part of the measuring frame form sliding connection through the through hole.
8. The wear measuring device of a pantograph of a subway vehicle according to claim 7, wherein: the top of the dial indicator mounting rack is provided with a screw hole, the dial indicator is fixed on a mounting plate, and the mounting plate is fixed with the screw hole of the dial indicator mounting rack through a screw.
CN202220171416.XU 2022-01-21 2022-01-21 Wear measuring device of subway vehicle pantograph Active CN216791050U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202220171416.XU CN216791050U (en) 2022-01-21 2022-01-21 Wear measuring device of subway vehicle pantograph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220171416.XU CN216791050U (en) 2022-01-21 2022-01-21 Wear measuring device of subway vehicle pantograph

Publications (1)

Publication Number Publication Date
CN216791050U true CN216791050U (en) 2022-06-21

Family

ID=82014953

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202220171416.XU Active CN216791050U (en) 2022-01-21 2022-01-21 Wear measuring device of subway vehicle pantograph

Country Status (1)

Country Link
CN (1) CN216791050U (en)

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