Pantograph carbon slide plate bonding resistance measuring device

Abstract

The invention discloses a pantograph carbon slide plate bonding resistance measuring device, which is characterized in that fixed frames are symmetrically arranged on a base plate in a central symmetry manner, moving grooves are formed in the fixed frames up and down, moving seats are arranged in the moving grooves through driving screw rods, servo motors are symmetrically arranged on one sides of the fixed frames, and measuring mechanisms are arranged on the side surfaces of the moving seats; a feeding fixing mechanism is arranged between the upper side of the fixing frame and the base plate, and a main controller is arranged above the feeding fixing mechanism. According to the invention, through cooperation of the symmetrically arranged fixing frames and the plurality of groups of driving screws with the plurality of groups of measuring mechanisms, the vertical contact position with the pantograph carbon contact strip can be changed at will according to measurement requirements, so that the bonding resistance measurement of different positions of the pantograph carbon contact strip is realized, and the unqualified bonding resistance area is accurately positioned; and meanwhile, the device can also be suitable for measuring the bonding resistance of different types of pantographs with two groups of carbon slide plates and the like, and the applicability is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of pantograph detection, and in particular to a device for measuring the bonding resistance of a pantograph carbon slide plate. Background Art

[0002] During the manufacturing process of the carbon slide plate of the pantograph, it is necessary to conduct a bonding resistivity test to determine whether it can meet the national standards and then determine whether it is qualified; the bonding resistivity of the carbon slide plate is crucial to the use of the carbon slide plate and the operation of the locomotive. Once the resistivity is too high, the carbon slide plate will overheat and produce greater wear, affecting the stability of the locomotive operation.

[0003] At present, the bonding resistance of pantographs is mostly measured manually, with poor measurement accuracy. Some devices that automatically measure the bonding resistance of carbon slide plates can only measure carbon slide plates of fixed length, and the carbon slide plates need to be truncated, which will damage the carbon slide plates and have poor practicality. At the same time, there will be two groups of carbon slide plates on some different pantographs, which need to be tested separately, which cannot be completed by a single device. In addition, the bonding resistance of the carbon slide plate needs to be tested at different locations with different intervals to determine the location of unqualified bonding, and the existing measuring device cannot achieve this measurement method. Therefore, the present invention proposes a pantograph carbon slide plate bonding resistance measuring device to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a pantograph carbon skateboard bonding resistance measuring device. The pantograph carbon skateboard bonding resistance measuring device can arbitrarily change the upper and lower contact positions with the pantograph carbon skateboard according to measurement requirements through a symmetrically arranged fixed frame and multiple groups of driving screws in conjunction with multiple groups of measuring mechanisms, thereby realizing the bonding resistance measurement of different positions of the pantograph carbon skateboard to accurately locate the area with unqualified bonding resistance. At the same time, the device can also be used for bonding resistance measurement of different types of pantographs such as installing two groups of carbon skateboards, and clamping from both sides of the pantograph carbon skateboard can avoid dead angles in the movement of the detection head, thereby greatly improving the applicability.

[0005] To achieve the purpose of the present invention, the present invention is implemented through the following technical solutions: a pantograph carbon slide board bonding resistance measuring device, including a base plate, an adjustment frame mechanism, a measuring mechanism, a feeding and fixing mechanism and a main controller, the adjustment frame mechanism includes a fixed frame, a movable groove, a driving screw, a movable seat and a servo motor, the base plate is centrally symmetrically provided with a fixed frame, the fixed frame is overhead and fixed by two groups of cylinders below it, the fixed frame is provided with movable grooves up and down, and two groups of movable grooves are provided up and down in a single group of fixed frames, which are respectively used for the movement and adjustment of the upper and lower measuring mechanisms, a movable seat is provided in the movable groove through a driving screw to facilitate the movement and adjustment of the measuring mechanism, a servo motor is symmetrically provided on one side of the fixed frame, a measuring mechanism is provided on the side of the movable seat, a feeding and fixing mechanism is provided between the upper side of the fixed frame and the base plate, and a main controller is provided above the feeding and fixing mechanism.

[0006] Further improvements are: the output end of the servo motor is connected to the driving screw for transmission, two groups of servo motors and driving screws are correspondingly arranged, and the servo motor is electrically connected to the main controller, guide slide grooves are symmetrically arranged on the upper and lower sides of the movable groove, and positioning sliders are fixedly arranged on the upper and lower sides of the movable seat, and the positioning slider is slidably adapted to the guide slide groove.

[0007] Further improvements are: the measuring mechanism includes an electric telescopic rod, a telescopic frame, an electric lifting rod, an insulating lifting plate, a mounting hole and a detection head mechanism; the telescopic frame is symmetrically arranged on one side of the mobile seat through the electric telescopic rod, the electric telescopic rod is embedded in the mobile seat, and the telescopic end is connected to the telescopic frame outward; the electric lifting rod is arranged on the telescopic frame, and the lower end of the electric lifting rod is arranged with an insulating lifting plate; the upper telescopic frame is an inverted L-shaped structure, and the lower telescopic frame is an L-shaped structure; the electric lifting rod is arranged on the transverse section, and the upper and lower groups of electric lifting rods have telescopic ends arranged opposite to each other and fixedly connected to the insulating lifting plate; a guide slide rod is also arranged between the insulating lifting plate and the telescopic frame; and a detection head mechanism is arranged on the insulating lifting plate through the mounting hole.

[0008] Further improvements are: the detection head mechanism includes a ceramic cylinder, a conductive metal tube, an elastic probe and a power socket, the ceramic cylinder is arranged in the mounting hole, the ceramic cylinder can be fixed and installed by screws or by clamping and limiting, a conductive metal cylinder is embedded under the ceramic cylinder, an elastic probe is embedded in the center of the ceramic cylinder inside the conductive metal cylinder, and a power socket is symmetrically arranged above the ceramic cylinder, and two groups of the power sockets are embedded in the ceramic cylinder and are electrically connected to the conductive metal tube and the elastic probe respectively.

[0009] Further improvements are: the feeding and fixing mechanism includes a multi-section lifting rod, a groove support plate, an upper bracket plate, a sliding groove, a bidirectional screw and a clamping plate; a groove support plate is symmetrically arranged on the middle part of the base plate through a multi-section lifting rod, which is used for positioning and placing the pantograph carbon slide board and for top feeding; an upper bracket plate is arranged between the upper sides of the fixed frames on both sides; sliding grooves are symmetrically arranged on the lower side of the upper bracket plate; a bidirectional screw is rotatably arranged on the bearing in the sliding groove; a clamping plate is symmetrically slidably arranged in the sliding groove; the clamping plate is adapted to the thread of the bidirectional screw; the bidirectional screw passes through the upper end of the clamping plate and is adapted to its thread; the rotation of the bidirectional screw can drive the clamping plate to move in opposite directions.

[0010] Further improvements are: the main controller is arranged above the upper bracket plate, a clamping motor is also arranged at one end of the upper side of the upper bracket plate, the output end of the clamping motor is driven by a pulley at one end of the bidirectional screw, and an anti-slip insulating rubber pad is arranged on the opposite side of the lower side of the clamping plate.

[0011] A further improvement is that fixed columns are symmetrically arranged on the sides of the two groups of fixed frames, visual cameras are arranged on the fixed columns, and the visual cameras are electrically connected to the main controller.

[0012] Further improvements are: the visual camera is used to obtain the side shape image of the pantograph carbon slide board after clamping, the main controller has built-in recognition and processing module, control and adjustment module and measurement and judgment module, the recognition and processing module is used to process and identify the acquired image to obtain the size of the pantograph carbon slide board, the control and adjustment module is used to control the adjustment frame mechanism and the measuring mechanism to adjust the measurement position according to the acquired size, and the measurement and judgment module is used to control the measuring mechanism to measure the resistance when it is powered on and feed back the resistance value data to determine whether it is qualified.

[0013] The beneficial effects of the present invention are as follows: the present invention can arbitrarily change the upper and lower contact positions with the pantograph carbon slide board according to measurement requirements through a symmetrically arranged fixed frame and multiple groups of driving screws in conjunction with multiple groups of measuring mechanisms, thereby realizing the bonding resistance measurement of different positions of the pantograph carbon slide board, so as to accurately locate the unqualified bonding resistance area, which solves the defect that the traditional device can only perform fixed-point positioning detection. At the same time, the device can also be used for the bonding resistance measurement of different types of pantographs such as installing two groups of carbon slide boards, and clamping from both sides of the pantograph carbon slide board can avoid the dead angle of the detection head moving, and the applicability is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the present invention.

[0015] Figure 2 It is a front view cross-sectional structural diagram of the present invention.

[0016] Figure 3 It is a side view of the present invention.

[0017] Figure 4 It is a side cross-sectional structural diagram of the present invention.

[0018] Figure 5 It is a cross-sectional structural diagram of the ceramic cylinder of the present invention.

[0019] Among them: 1. Base plate; 2. Main controller; 3. Fixed frame; 4. Moving slot; 5. Driving screw; 6. Moving seat; 7. Servo motor; 8. Guide slide; 9. Positioning slider; 10. Electric telescopic rod; 11. Telescopic frame; 12. Electric lifting rod; 13. Insulating lifting plate; 14. Mounting hole; 15. Ceramic cylinder; 16. Conductive metal cylinder; 17. Elastic probe; 18. Electric socket; 19. Multi-section lifting rod; 20. Grooved support plate; 21. Upper bracket plate; 22. Sliding slot; 23. Bidirectional screw; 24. Clamping plate; 25. Clamping motor; 26. Anti-slip insulating rubber pad; 27. Fixed column; 28. Visual camera. DETAILED DESCRIPTION

[0020] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0021] The electrified highway transport system is mainly composed of electrified transport equipment and power supply and reception infrastructure. The vehicle obtains electricity from the contact network through the on-board pantograph. The pantograph can be raised and lowered controllably. It can be lowered on roads without power grids and driven by the on-board power battery. The system adopts a 1500V bipolar overhead contact network voltage platform, which can achieve full coverage of heavy truck application scenarios. It is especially suitable for large-scale trunk transportation of coal, ore, agricultural products and other large-scale goods. It is the preferred transportation mode to achieve local zero emissions and will usher in a good development opportunity.

[0022] The bonding resistivity of the carbon plate of the on-board pantograph is crucial to the use of the carbon plate and the operation of the locomotive. Once the resistivity is too high, the carbon plate will overheat and produce greater wear, affecting the stability of the locomotive operation. Therefore, during its manufacturing process, it is necessary to conduct bonding resistance testing to determine whether it can meet national standards.

[0023] At present, the bonding resistance of pantographs is mostly measured manually, with poor measurement accuracy. Some devices that automatically measure the bonding resistance of carbon slide plates can only measure carbon slide plates of fixed length, and the carbon slide plates need to be truncated, which will damage the carbon slide plates. At the same time, detecting the bonding resistance of the carbon slide plate requires testing at different locations at different intervals to determine the location of unqualified bonding. The existing measuring devices cannot achieve this measurement method, resulting in manual testing, which is very troublesome.

[0024] Based on the above problems, this embodiment provides a device for measuring the bonding resistance of a pantograph carbon slide plate. Figure 1-Figure 5 As shown, the measuring device includes a base plate 1, an adjustment frame mechanism, a measuring mechanism, a feeding and fixing mechanism and a main controller 2. The adjustment frame mechanism includes a fixed frame 3, a movable groove 4, a driving screw 5, a movable seat 6 and a servo motor 7. The fixed frame 3 is symmetrically arranged on the center of the base plate 1. The fixed frame is fixedly arranged in the air by two groups of cylinders below it. The fixed frame 3 is provided with movable grooves 4 above and below. There are two groups of movable grooves in a single fixed frame, which are respectively used for the movement and adjustment of the upper and lower measuring mechanisms. The movable seat 6 is provided in the movable groove 4 through the driving screw 5 to facilitate the movement and adjustment of the measuring mechanism. The servo motor 7 is symmetrically arranged on one side of the fixed frame 3. The measuring mechanism is arranged on the side of the movable seat 6. A feeding and fixing mechanism is arranged between the upper side of the fixed frame 3 and the base plate 1. The main controller 2 is arranged above the feeding and fixing mechanism for the overall movement adjustment control and measurement control of the device.

[0025] The output end of the servo motor 7 is connected to the driving screw 5 for transmission. Two groups of servo motors and driving screws are correspondingly arranged, and the servo motor 7 is electrically connected to the main controller 2. The upper and lower sides of the movable groove 4 are symmetrically provided with guide slide grooves 8. The upper and lower sides of the movable seat 6 are fixedly provided with positioning sliders 9. The positioning slider 9 is slidably adapted to the guide slide grooves 8 and is used for guiding the movement of the movable seat.

[0026] The measuring mechanism includes an electric telescopic rod 10, a telescopic frame 11, an electric lifting rod 12, an insulating lifting plate 13, a mounting hole 14 and a detection head mechanism. The telescopic frame 11 is symmetrically arranged on one side of the mobile seat 6 through the electric telescopic rod 10. The electric telescopic rod is embedded in the mobile seat, and the telescopic end is connected to the telescopic frame outward. The electric lifting rod 12 is arranged on the telescopic frame 11, and the insulating lifting plate 13 is arranged at the lower end of the electric lifting rod 12. The upper telescopic frame is an inverted L-shaped structure, and the lower telescopic frame is an L-shaped structure. The electric lifting rod is arranged on the transverse section, and the upper and lower groups of electric lifting rods have telescopic ends arranged opposite to each other and are fixedly connected to the insulating lifting plate. A guide slide bar is also arranged between the insulating lifting plate and the telescopic frame, and a detection head mechanism is arranged on the insulating lifting plate 13 through the mounting hole 14.

[0027] The detection head mechanism includes a ceramic cylinder 15, a conductive metal tube 16, an elastic probe 17 and a power socket 18. The ceramic cylinder 15 is arranged in the mounting hole 14. The ceramic cylinder can be fixed and installed by screws or by clamping and limiting. The conductive metal tube 16 is embedded under the ceramic cylinder 15, and the elastic probe 17 is embedded in the center of the ceramic cylinder 15 inside the conductive metal tube 16. The power socket 18 is symmetrically arranged above the ceramic cylinder 15. Two groups of power sockets 18 are embedded in the ceramic cylinder 15 and are electrically connected to the conductive metal tube 16 and the elastic probe 17 respectively. The external power circuit and the measurement circuit are respectively connected to the power connection post on the upper side of the conductive metal tube and the power connection post on the upper side of the elastic probe for power supply and measurement.

[0028] The feeding and fixing mechanism includes a multi-section lifting rod 19, a groove support plate 20, an upper bracket plate 21, a sliding groove 22, a bidirectional screw 23 and a clamping plate 24. A groove support plate 20 is symmetrically arranged in the middle of the base plate 1 through the multi-section lifting rod 19, which is used for positioning and placing the pantograph carbon slide board and top feeding. An upper bracket plate 21 is arranged between the upper sides of the fixed frames 3 on both sides, and a sliding groove 22 is symmetrically arranged on the lower side of the upper bracket plate 21. A bidirectional screw 23 is rotatably arranged in the bearing in the sliding groove 22, and a clamping plate 24 is symmetrically slidably arranged in the sliding groove 22. The clamping plate 24 is threadably adapted to the bidirectional screw 23, and the bidirectional screw passes through the upper end of the clamping plate and is threadably adapted thereto. The rotation of the bidirectional screw can drive the clamping plate to clamp and move in opposite directions.

[0029] The main controller 2 is arranged above the upper bracket plate 21, and a clamping motor 25 is also arranged at one end of the upper side of the upper bracket plate 21. The output end of the clamping motor 25 is driven by a pulley at one end of the bidirectional screw 23, and an anti-slip insulating rubber pad 26 is arranged on the opposite side of the lower side of the clamping plate 24, which can play a role in positioning and anti-slip clamping.

[0030] Fixed columns 27 are symmetrically arranged on the sides of the two groups of fixed frames 3 , and visual cameras 28 are arranged on the fixed columns 27 . The visual cameras 28 are electrically connected to the main controller 2 .

[0031] The visual camera 28 is used to obtain the side shape image of the pantograph carbon slide board after clamping. The main controller 2 has built-in recognition and processing module, control and adjustment module and measurement and judgment module. The recognition and processing module is used to process and identify the acquired image to obtain the size of the pantograph carbon slide board. The control and adjustment module is used to control the adjustment frame mechanism and the measuring mechanism to adjust the measurement position according to the acquired size. The measurement and judgment module is used to control the measuring mechanism to measure the resistance when it is powered on and feed back the resistance value data to determine whether it is qualified.

[0032] When the pantograph carbon slide plate bonding resistance measuring device is used, the pantograph carbon slide plate is placed on the groove support plate, and then driven by the multi-section lifting rod to move it up to between the clamping plates on both sides, and then fixed and clamped by the clamping plates to start the detection;

[0033] During the inspection, the visual cameras on both sides first obtain the thickness and shape data of the pantograph carbon slide plate, and then the electric lifting rods in the adjustment frame mechanism and the measuring mechanism automatically adjust the position and spacing between the detection head mechanisms to achieve touch measurement. When adjusting the position, the upper and lower sides can be adjusted independently to achieve misalignment measurement and fixed spacing positioning measurement;

[0034] After the measurement, the device determines whether the pantograph carbon slide bonding resistance is qualified based on the measurement result data. If it is unqualified, repeated measurements are made to locate the unqualified position and the bonding process of the pantograph carbon slide produced subsequently is adjusted, providing accurate and reliable optimization process reference for the pantograph carbon slide production.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for measuring the bonding resistance of a pantograph carbon slide plate, characterized in that: The invention comprises a base plate (1), an adjustment frame mechanism, a measuring mechanism, a feeding fixing mechanism and a main controller (2); the adjustment frame mechanism comprises a fixed frame (3), a movable groove (4), a driving screw (5), a movable seat (6) and a servo motor (7); a fixed frame (3) is centrally symmetrically arranged on the base plate (1); a movable groove (4) is arranged in the fixed frame (3) at the top and bottom; a movable seat (6) is arranged in the movable groove (4) via a driving screw (5); a servo motor (7) is symmetrically arranged on one side of the fixed frame (3); a measuring mechanism is arranged on the side of the movable seat (6); a feeding fixing mechanism is arranged between the upper side of the fixed frame (3) and the base plate (1); and a main controller (2) is arranged above the feeding fixing mechanism.

2. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 1, characterized in that: The output end of the servo motor (7) is connected to the driving screw (5) for transmission, and the servo motor (7) is electrically connected to the main controller (2). The upper and lower sides of the movable groove (4) are symmetrically provided with guide slide grooves (8). The upper and lower sides of the movable seat (6) are provided with positioning slide blocks (9), and the positioning slide blocks (9) are slidably adapted to the guide slide grooves (8).

3. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 1, characterized in that: The measuring mechanism comprises an electric telescopic rod (10), a telescopic frame (11), an electric lifting rod (12), an insulating lifting plate (13), a mounting hole (14) and a detection head mechanism; the telescopic frame (11) is symmetrically provided on one side of the movable seat (6) through the electric telescopic rod (10); the electric lifting rod (12) is provided on the telescopic frame (11); the lower end of the electric lifting rod (12) is provided with an insulating lifting plate (13); and the detection head mechanism is provided on the insulating lifting plate (13) through the mounting hole (14).

4. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 3, characterized in that: The detection head mechanism comprises a ceramic cylinder (15), a conductive metal cylinder (16), an elastic probe (17) and an electric socket (18); the ceramic cylinder (15) is arranged in the mounting hole (14); the conductive metal cylinder (16) is embedded below the ceramic cylinder (15); the elastic probe (17) is embedded in the central part of the ceramic cylinder (15) inside the conductive metal cylinder (16); the electric socket (18) is symmetrically arranged above the ceramic cylinder (15); two groups of the electric sockets (18) are embedded in the ceramic cylinder (15) and are electrically connected to the conductive metal cylinder (16) and the elastic probe (17) respectively.

5. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 1, characterized in that: The loading and fixing mechanism comprises a multi-section lifting rod (19), a groove support plate (20), an upper bracket plate (21), a sliding groove (22), a bidirectional screw (23) and a clamping plate (24); a groove support plate (20) is symmetrically arranged in the middle of the upper portion of the base plate (1) through the multi-section lifting rod (19); an upper bracket plate (21) is arranged between the upper sides of the fixing frames (3) on both sides; a sliding groove (22) is symmetrically arranged on the lower side of the upper bracket plate (21); a bidirectional screw (23) is arranged in the sliding groove (22); a clamping plate (24) is symmetrically arranged in the sliding groove (22); and the clamping plate (24) is threadably adapted to the bidirectional screw (23).

6. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 5, characterized in that: The main controller (2) is arranged above the upper bracket plate (21); a clamping motor (25) is also arranged at one end of the upper side of the upper bracket plate (21); an output end of the clamping motor (25) is driven by a pulley at one end of a bidirectional screw rod (23); and an anti-slip insulating rubber pad (26) is arranged on the opposite side of the lower side of the clamping plate (24).

7. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 1, characterized in that: The two groups of fixed frames (3) are centrally symmetrically provided with fixed columns (27) on their sides, and the fixed columns (27) are provided with visual cameras (28), and the visual cameras (28) are electrically connected to the main controller (2).

8. The device for measuring the bonding resistance of a pantograph carbon slide plate according to claim 7, characterized in that: The visual camera (28) is used to obtain a side shape image of the pantograph carbon slide after clamping. The main controller (2) has a built-in recognition processing module, a control and adjustment module and a measurement judgment module. The recognition processing module is used to process and identify the acquired image to obtain the size of the pantograph carbon slide. The control and adjustment module is used to control the adjustment frame mechanism and the measurement mechanism to adjust the measurement position according to the acquired size. The measurement judgment module is used to control the measurement mechanism to measure the resistance when it is powered on and to feed back the resistance value data to determine whether it is qualified.

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