Contact line detection device using lever to amplify error

Abstract

The utility model relates to the technical field of detection equipment, in particular to a contact line detection device utilizing a lever to amplify errors, which comprises two groups of traveling wheels which are positioned above a contact line and are in vertical rolling contact with the contact line, and the two groups of traveling wheels are respectively and fixedly connected onto two groups of traveling wheel fixing rods. The two ends of the walking wheel fixing rod are rotationally connected to a walking wheel support through walking wheel bearings, the walking wheel support is fixedly connected to the supporting frame, and the bottom of the contact line is provided with a lever detection unit installed on the supporting frame. According to the contact line detection device using the lever to amplify the error, the walking wheels are used for driving the whole device to move on the contact line, the abrasion position and degree of the contact line can be more efficiently detected, the problems that an existing detection device is low in efficiency and low in informatization degree are effectively solved, and under the action of the lever detection unit, the detection accuracy is improved. The abrasion loss of the abrasion position can be amplified, tiny abrasion can be detected, and the advantages of being high in accuracy and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a contact line detection device which utilizes a lever to amplify an error. Background Art

[0002] Due to the influence of factors such as friction during the operation of high-speed rail, the contact wire will wear over time. According to the "High-speed Rail Contact Network Maintenance Operation Guide", once the wear of the contact wire reaches 15%, a warning needs to be issued; when the wear exceeds 20%, the contact wire needs to be replaced. Therefore, we need a method that can accurately and effectively detect the wear of the contact wire. At present, the existing contact wire wear detection method has the problem of being unable to detect minor wear during detection, because the wear of the contact wire is small, and the existing detection device is difficult to detect the wear with high accuracy. There is also a problem of low automation and informationization. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a contact line detection device which utilizes a lever to amplify errors, thereby solving the technical problems of low efficiency of the prior contact line detection and inability to detect slight wear.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a contact line detection device using a lever to amplify the error, comprising two groups of running wheels located above the contact line and in vertical rolling contact with the contact line, the two groups of running wheels are respectively fixed to two groups of running wheel fixing rods, both ends of the running wheel fixing rods are rotatably connected to the running wheel bracket through running wheel bearings, the running wheel bracket is fixed to the support frame, and a lever detection unit installed on the support frame is provided at the bottom of the contact line;

[0005] The lever detection unit includes a needle roller that rolls in contact with the bottom of the contact line. Both ends of the needle roller are rotatably connected to the base through needle roller bearings. The base is fixed to one end of the lever assembly. The lever assembly is installed on a support frame. The other end of the lever assembly is between two opposing photoelectric sensors. Both opposing photoelectric sensors are installed on the support frame through opposing photoelectric sensor brackets.

[0006] Preferably, the lever assembly includes a connecting rod with one end fixed to the base, a support fixing rod is fixed on the outer wall of the connecting rod close to the base, a torsion spring is sleeved on the outer wall of the support fixing rod and is rotatably connected to the support, and the support is fixed to the support frame.

[0007] Preferably, the other end of the connecting rod is located at an upper position between the two through-beam photoelectric sensors.

[0008] Preferably, a control unit is installed at the bottom of the support frame, and an indicator light is connected to one side of the control unit via a wire.

[0009] Preferably, the control unit is electrically connected to two through-beam photoelectric sensors.

[0010] Preferably, the control unit has a built-in GPS positioning module and a wireless WiFi module.

[0011] By means of the above technical solution, the utility model provides a contact line detection device using a lever to amplify the error, which has at least the following beneficial effects:

[0012] 1. The contact line detection device that uses a lever to amplify the error uses a walking wheel to drive the entire device to move on the contact line, which can more efficiently detect the wear position and degree of the contact line, effectively solving the problems of low efficiency and low level of informatization in existing detection devices. Under the action of the lever detection unit, the wear amount of the wear position can be amplified, and slight wear can be detected, with the advantages of high accuracy and reliability.

[0013] 2. The contact wire detection device that uses a lever to amplify the error can be equipped with a control unit. When encountering severe wear, it can mark the location and send the marking information to the cloud control center. It can monitor the wear of the contact wire in real time and accurately record the wear location. At the same time, it can also remind relevant personnel to carry out timely maintenance and replacement work by issuing an alarm to ensure the normal operation of the electrified railway system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0015] Figure 1 It is a schematic diagram of the structure of the utility model as a whole from the side;

[0016] Figure 2 It is a schematic diagram of the structure of the overall front side of the utility model;

[0017] Reference numerals:

[0018] 1. Contact wire; 2. Travel wheel; 3. Travel wheel fixing rod; 4. Support; 5. Travel wheel bracket; 6. Travel wheel bearing; 7. Through-beam photoelectric sensor; 8. Control unit; 9. Wire; 10. Indicator light; 11. Support frame; 12. Through-beam photoelectric sensor bracket; 13. Connecting rod; 14. Support fixing rod; 15. Torsion spring; 16. Base; 17. Needle roller bearing; 18. Needle roller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] With the development of electrified railway systems, the contact wire 1, as an important component, undertakes the key task of transmitting electricity. Therefore, the production quality requirements for the contact wire 1 are high, including material and process. Before the contact wire 1 leaves the factory, it is necessary to strictly test its various indicators, including diameter, hardness, tensile strength, wear resistance and aging resistance.

[0021] Embodiment 1:

[0022] Based on the technical defects of low detection efficiency, accuracy and reliability of existing technologies, please refer to Figure 1-Figure 2 The utility model provides a contact line detection device that uses a lever to magnify the error, which can more efficiently detect the wear position and degree of the contact line 1, effectively solving the problems of low efficiency and low information level of the existing detection device, and under the action of the lever detection unit, the wear amount of the wear position can be amplified, and slight wear can be detected, which has the advantages of high accuracy and reliability. The device includes two groups of walking wheels 2 that are above the contact line 1 and in vertical rolling contact with the contact line 1, the two groups of walking wheels 2 are respectively fixed to two groups of walking wheel fixing rods 3, and both ends of the walking wheel fixing rods 3 are rotatably connected to the walking wheel bracket 5 through walking wheel bearings 6, the walking wheel bracket 5 is fixed to the support frame 11, and the bottom of the contact line 1 is provided with a lever detection unit installed on the support frame 11; the device is installed on the contact line 1, and then a driving motor can be installed on the top of one of the walking wheel brackets 5 to make the walking wheel 2 move along the contact line 1, thereby driving the overall movement, and during the movement, the lever detection unit can be used to detect the wear of the contact line 1.

[0023] To detect the wear of the contact wire 1, please refer to Figure 1-Figure 2The lever detection unit includes a needle roller 18 that rolls in contact with the bottom of the contact line 1. Both ends of the needle roller 18 are rotatably connected to the base 16 through needle bearings 17. The base 16 is fixed to one end of the lever assembly. The lever assembly is mounted on the support frame 11. The other end of the lever assembly is between two through-beam photoelectric sensors 7. Both through-beam photoelectric sensors 7 are mounted on the support frame 11 through through-beam photoelectric sensor brackets 12. Under the action of the lever assembly, the needle roller 18 at one end of the lever assembly can always roll in contact with the bottom of the contact line 1. When encountering a position where the contact line 1 is severely worn, the needle roller 18 moves upward, and the other end of the lever assembly moves downward and blocks the light emitted by the through-beam photoelectric sensor 7, thereby generating an alarm message.

[0024] To detect minor wear, please refer to Figure 1-Figure 2 The lever assembly includes a connecting rod 13 having one end fixed to a base 16, a support fixing rod 14 is fixed to an outer wall of the connecting rod 13 close to the base 16, a torsion spring 15 is sleeved on the outer wall of the support fixing rod 14 and is rotatably connected to a support 4, and the support 4 is fixed to a support frame 11; when the roller needle 18 connected to one end of the connecting rod 13 moves upward, the movement amplitude of the other end of the connecting rod 13 can be amplified, thereby being more easily detected by the through-beam photoelectric sensor 7.

[0025] In order to solve the error problem in the detection process, the other end of the connecting rod 13 is located above the two opposing photoelectric sensors 7; a distance is left between the connecting rod 13 and the opposing photoelectric sensor 7, and the distance is the allowable error in the detection. Once the error is exceeded, an alarm will be immediately issued.

[0026] Embodiment 2:

[0027] In order to achieve remote marking and alarm of severely worn locations, based on the first embodiment, a control unit 8 is installed at the bottom of the support frame 11, and an indicator light 10 is connected to one side of the control unit 8 through a wire 9; the control unit 8 can be used to control the indicator light 10 to light up.

[0028] In order to monitor the wear of the contact wire 1 in real time, the control unit 8 is electrically connected to the two through-beam photoelectric sensors 7 ; when the two through-beam photoelectric sensors 7 are blocked, a signal can be sent to the control unit 8 .

[0029] To facilitate the staff in carrying out maintenance work, the control unit 8 is equipped with a built-in GPS positioning module and a wireless WiFi module; in case of severe wear and tear, the location can be marked by the GPS positioning module and the wireless WiFi module and the marking information can be sent to the cloud control center, which can accurately record the wear location. At the same time, it can also remind relevant personnel to carry out timely maintenance and replacement work by issuing an alarm.

[0030] It can be known from the above embodiments that: the device is installed on the contact line 1, and then a driving motor can be installed on the top of one of the walking wheel brackets 5 to make the walking wheel 2 move along the contact line 1, thereby driving the overall movement. During the movement, when encountering a position with severe wear, the roller needle 18 connected to one end of the connecting rod 13 starts to move upward, and the movement range of the other end of the connecting rod 13 can be amplified, and the other end of the connecting rod 13 moves downward and blocks the light emitted by the through-beam photoelectric sensor 7, thereby generating an alarm message. The alarm message is marked at the position by the control unit 8 and the marking information is sent to the cloud control center.

[0031] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A contact line detection device using a lever to amplify an error, comprising two sets of running wheels (2) located above a contact line (1) and in vertical rolling contact with the contact line (1), characterized in that: The two groups of running wheels (2) are respectively fixedly connected to two groups of running wheel fixing rods (3), both ends of the running wheel fixing rods (3) are rotatably connected to the running wheel bracket (5) through running wheel bearings (6), the running wheel bracket (5) is fixedly connected to the support frame (11), and a lever detection unit installed on the support frame (11) is provided at the bottom of the contact line (1); The lever detection unit comprises a needle roller (18) that is in rolling contact with the bottom of the contact line (1), and both ends of the needle roller (18) are rotatably connected to a base (16) via a needle roller bearing (17). The base (16) is fixed to one end of a lever assembly, and the lever assembly is mounted on a support frame (11). The other end of the lever assembly is between two opposing photoelectric sensors (7), and the two opposing photoelectric sensors (7) are both mounted on the support frame (11) via an opposing photoelectric sensor bracket (12).

2. The contact line detection device using a lever to amplify the error according to claim 1, characterized in that: The lever assembly comprises a connecting rod (13) having one end fixedly connected to a base (16); a support fixing rod (14) is fixedly provided on an outer wall of the connecting rod (13) close to the base (16); a torsion spring (15) is sleeved on the outer wall of the support fixing rod (14) and is rotatably connected to a support (4); and the support (4) is fixedly connected to a support frame (11).

3. The contact line detection device using a lever to amplify the error according to claim 2, characterized in that: The other end of the connecting rod (13) is located at an upper position between the two opposing photoelectric sensors (7).

4. The contact line detection device using a lever to amplify the error according to claim 1, characterized in that: A control unit (8) is installed at the bottom of the support frame (11), and one side of the control unit (8) is connected to an indicator light (10) via a wire (9).

5. The contact line detection device using a lever to amplify the error according to claim 4, characterized in that: The control unit (8) is electrically connected to the two opposing-beam photoelectric sensors (7).

6. The contact line detection device using a lever to amplify the error according to claim 4, characterized in that: The control unit (8) is equipped with a GPS positioning module and a wireless WiFi module.

Images