Current collector safety performance automatic detection device
By simulating the operating state through an automatic safety performance detection device for the current collector and using a non-contact temperature sensor to detect the brush temperature, the problem of the inability to detect abnormal temperature rise of the current collector in the existing technology is solved, thus ensuring the safety of the crane control system.
Patent Information
- Application Number
- CN202422249017.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-09-13
AI Technical Summary
Existing technology cannot accurately detect abnormal temperature rise during the operation of the current collector, which affects the safe operation of the crane control system.
Design an automatic detection device for the safety performance of a current collector. By simulating the operating state of the current collector, a non-contact temperature sensor is used to detect the brush temperature, and an alarm is issued when the temperature rises abnormally.
This technology enables timely detection of abnormal temperature rises during the operation of the collector, ensuring the safe operation of the crane control system and reminding maintenance personnel to replace the collector in a timely manner.
Smart Images
Figure CN223537258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current collector testing technology, and in particular to an automatic testing device for the safety performance of current collectors. Background Technology
[0002] The conductor rail current collector (hereinafter referred to as the current collector) is one of the components responsible for power transmission in the crane control system. It achieves electrical conductivity by having its brushes contact the energized conductor rail, thus transmitting electrical energy from the conductor rail to the crane control system. Therefore, the operating performance of the current collector directly affects the safe operation of the entire crane control system, and quality inspection and testing of the current collector are essential during the maintenance of the crane control system.
[0003] Currently, the main methods for testing the operating performance of current collectors in this field are as follows:
[0004] (1) Visual inspection: check the surface for obvious deformation and damage;
[0005] (2) Electrical testing, including testing insulation resistance and contact resistance, etc.
[0006] (3) Contact performance test: check whether there is abnormal corrosion and oxidation on the contact surface between the current collector brush and the sliding contact line.
[0007] However, all three detection methods mentioned above are performed when the current collector is stationary. In actual operation, the friction generated when the brushes of the current collector move relative to the sliding contact line will cause the brushes of the current collector to heat up. If the components of the current collector are aging, it will cause abnormal heating, affecting the safe operation of the current collector. The above three methods cannot accurately detect this. Utility Model Content
[0008] Therefore, in order to address the above-mentioned problems, this utility model proposes an automatic detection device for the safety performance of a current collector, which scientifically detects the temperature of the current collector during operation by simulating its working state.
[0009] To achieve the above objectives, the present invention adopts the following technical solution:
[0010] An automatic safety performance testing device for current collectors includes a sliding contact line, a track installed on the ground, and a trolley installed on the track for installing current collectors.
[0011] A limit switch is provided at each end of the track;
[0012] The trolley includes an electric walking mechanism mounted on a track and capable of reciprocating on the track, a frame mounted on the electric walking mechanism, and a transformer, controller, control switch panel, and display mounted on the frame; the current collector is mounted on the frame and maintains conductive contact between the brush of the current collector and the sliding contact line when the trolley reciprocates on the track;
[0013] The current collector is equipped with a non-contact temperature sensor for detecting the brush temperature.
[0014] The current collector is electrically connected to the power supply terminal of the electric walking mechanism. The current collector is electrically connected to the power supply terminal of the controller through a transformer. The control switch panel, display, non-contact temperature sensor, electric walking mechanism, and each limit switch are electrically connected to the controller.
[0015] Furthermore, a speaker is also provided on the rack; the speaker is electrically connected to the controller.
[0016] Furthermore, the control switch panel integrates a start button QA, an emergency stop button TA, a first control button SB1, and a second control button SB2;
[0017] The start button QA, emergency stop button TA, first control button SB1, and second control button SB2 are electrically connected to the controller.
[0018] Furthermore, it also includes a counter mounted on the chassis; the counter is electrically connected to the controller.
[0019] Furthermore, the frame is also equipped with an adjustable load cell; the adjustable load cell is electrically connected to the current collector.
[0020] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:
[0021] When in use, this automatic safety performance detection device for current collectors is installed on the frame and the brushes of the current collector are kept in conductive contact with the sliding contact line as the trolley moves back and forth on the track. By simulating the operating state of the current collector, it detects whether there is abnormal temperature rise during the use of the current collector. If abnormal temperature rise is found, the speaker will sound an alarm to remind maintenance personnel to replace the current collector in time. Attached Figure Description
[0022] Figure 1 This is a front structural diagram of the automatic detection device for the electrical safety performance of this collector.
[0023] Figure 2 This is a side view of the automatic safety performance detection device for electrical appliances.
[0024] Figure 3This is the circuit connection block diagram of the automatic detection device for the electrical safety performance of this collector. Detailed Implementation
[0025] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0026] refer to Figure 1 , Figure 2 and Figure 3 This embodiment provides an automatic detection device for the safety performance of current collectors, including a sliding contact line 3, a track 1 installed on the ground, and a trolley 2 installed on the track 1 for installing current collectors 5.
[0027] The sliding contact line 3 and the current collector 5 are existing equipment and will not be described in detail here.
[0028] A limit switch 4 is installed at each end of the track 1.
[0029] The length of track 1 can be set according to actual needs. For example, in this specific embodiment, the length of track 1 is set to 4m.
[0030] The trolley 2 includes an electric walking mechanism 21 mounted on a track 1 and capable of reciprocating on the track 1, a frame 22 mounted on the electric walking mechanism 21, and a transformer 8, a controller 9, a display 10, a speaker 11, a counter 12, and a control switch panel 7 mounted on the frame 22 (the transformer 8, controller 9, display 10, speaker 11, and counter 12 are not shown in the figure, but those skilled in the art should understand that the position of the transformer 8, controller 9, display 10, speaker 11, and counter 12 mounted on the frame 22 does not affect the performance of this automatic detection device for the safety performance of the current collector).
[0031] The control switch panel 7 integrates a start button QA, an emergency stop button TA, a first control button SB1, and a second control button SB2.
[0032] It should be noted that when the current collector 5 is mounted on the frame 21 and the trolley 2 moves back and forth on the track 1, the brush of the current collector 5 is kept in conductive contact with the sliding contact line 3.
[0033] The current collector 5 is equipped with a non-contact temperature sensor 6 for detecting the brush temperature; those skilled in the art should understand the position of the non-contact temperature sensor 6 on the frame 22, and that the non-contact temperature sensor 6 does not contact the current collector 5.
[0034] All of the above-mentioned electronic components are existing equipment in the art. In this specific embodiment, preferably, the controller 9 is a Siemens PLC S7-200 controller; preferably, the counter 12 is a Santen Electronics LC78-6 electronic digital display meter counter, used to count the number of round trips of the trolley 2, and the travel distance of the trolley 2 can be obtained by multiplying the number of round trips by the length of the track 1. Preferably, the electric walking mechanism 21 uses an RGV chassis.
[0035] Those skilled in the art should possess the conventional selection ability for the aforementioned electronic components, and based on this specification and the accompanying drawings, they can fully reproduce the automatic current collector safety performance detection device disclosed in this patent application and achieve the same technical effect after a limited number of circuit connection experiments.
[0036] The current collector 5 is electrically connected to the power supply terminal of the electric walking mechanism 21 to supply power to the electric walking mechanism 21; the current collector 5 is electrically connected to the power supply terminal of the controller 9 through the transformer 8 to supply power to the controller 9; the start button QA, the emergency stop button TA, the first control button SB1 and the second control button SB2, the non-contact temperature sensor 6, the display 10, the speaker 11, the counter 12, the electric walking mechanism 21, and each limit switch 4 are respectively electrically connected to the controller 9.
[0037] When using it, first place any one end of the trolley 2 (such as the left end) and make the trolley 2 touch the limit switch 4 at that end.
[0038] After pressing the start button QA, press either the first control button SB1 or the second control button SB2 according to the actual situation. For example, if the first control button SB1 is set to control the trolley 2 to move from left to right, and the second control button SB2 is set to control the trolley 2 to move from right to left, then when the trolley 2 is at the left end, the first control button SB1 should be pressed. Of course, if the second control button SB2 is pressed incorrectly at this time, the trolley 2 will not move.
[0039] When the trolley 2 moves to the right end of track 1 and touches the limit switch 4 at the right end of track 1, the controller 9 controls the trolley 2 to move to the left; when it touches the limit switch 4 at the left end of track 1, the controller 9 controls the trolley 2 to move to the right. The trolley 2 is controlled to move back and forth according to the above steps.
[0040] Furthermore, aside from the initial touch of limit switch 4, each subsequent touch of limit switch 4 increments the counter displayed on counter 12 by one (accumulating from zero). The travel distance of the trolley can be calculated by multiplying the number of round trips counted by counter 12 by the length of track 1 (4m).
[0041] The display 10 is used to display the temperature of the current collector 5 detected by the non-contact temperature sensor 6, specifically the brush temperature of the current collector 5. The display 10 can also be used to display the travel distance of the trolley.
[0042] The emergency stop button TA stops the trolley 2, at which point the counter 12 is reset to zero.
[0043] When in use, the current collector 5 is installed on the frame 22 and the trolley 2 moves back and forth on the track 1, keeping the brush of the current collector 5 in conductive contact with the sliding contact line 3. By simulating the operating state of the current collector 5, the device detects whether there is abnormal temperature rise when the current collector 5 is in use. If there is abnormal temperature rise, the speaker 11 is controlled to sound an alarm to remind maintenance personnel to replace the current collector 5 in time.
[0044] Preferably, the frame 22 is also equipped with an adjustable load cell 13. Figure 1 and Figure 2 (Not shown in the image); The adjustable load box 13 is electrically connected to the current collector 5. By adjusting the load of the adjustable load box 13, the actual operation of the current collector 5 with connected load is simulated, the operating state of the current collector is simulated, and the temperature of the current collector during operation is scientifically detected.
[0045] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. An automatic detection device for the safety performance of current collectors, characterized in that: This includes a sliding contact line, a track installed on the ground, and a trolley set on the track for installing current collectors; A limit switch is provided at each end of the track; The trolley includes an electric walking mechanism mounted on a track and capable of reciprocating on the track, a frame mounted on the electric walking mechanism, and a transformer, controller, control switch panel, and display mounted on the frame; the current collector is mounted on the frame and maintains conductive contact between the brush of the current collector and the sliding contact line when the trolley reciprocates on the track; The current collector is equipped with a non-contact temperature sensor for detecting the brush temperature. The current collector is electrically connected to the power supply terminal of the electric walking mechanism. The current collector is electrically connected to the power supply terminal of the controller through a transformer. The control switch panel, display, non-contact temperature sensor, electric walking mechanism, and each limit switch are electrically connected to the controller.
2. The automatic detection device for the safety performance of current collectors according to claim 1, characterized in that: The frame is also equipped with a speaker; The speaker is electrically connected to the controller.
3. The automatic detection device for the safety performance of current collectors according to claim 1, characterized in that: The control switch panel integrates a start button QA, an emergency stop button TA, a first control button SB1, and a second control button SB2. The start button QA, emergency stop button TA, first control button SB1, and second control button SB2 are electrically connected to the controller.
4. The automatic detection device for the safety performance of current collectors according to claim 1, characterized in that: It also includes a counter mounted on the chassis; The counter is electrically connected to the controller.
5. The automatic detection device for the safety performance of current collectors according to claim 1, characterized in that: The frame is also equipped with an adjustable load box; The adjustable load cell is electrically connected to the current collector.