CN214622821U - Slip ring detection device for rail transit - Google Patents
Slip ring detection device for rail transit Download PDFInfo
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- CN214622821U CN214622821U CN202120682450.9U CN202120682450U CN214622821U CN 214622821 U CN214622821 U CN 214622821U CN 202120682450 U CN202120682450 U CN 202120682450U CN 214622821 U CN214622821 U CN 214622821U
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- slip ring
- alarm
- power supply
- relay
- detection device
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Abstract
The utility model discloses a slide ring detection device for track traffic, which comprises a power supply, a relay and an alarm, wherein the slide ring is connected with the control loop parts of the power supply and the relay in series through leads to form a control loop, and the alarm is connected with the alarm loop parts of the power supply and the relay in series through leads to form an alarm loop; when the power supply is switched on, if the slip ring is normally conducted, the relay works to conduct the alarm loop and the alarm works; if the slip ring resistance is overlarge, the relay does not work, the alarm loop cannot be conducted, and the alarm does not work. By setting the power supply voltage, the actual working state of the slip ring on the rail transit monorail vehicle can be simulated to detect the on-off state of the slip ring, the false detection condition caused by the difference between the detection method and other factors and the actual application is avoided, and the equivalent resistance value of the slip ring can be calculated.
Description
Technical Field
The utility model belongs to the technical field of rail transit equips, concretely relates to sliding ring detection device for rail transit.
Background
The slip ring for track traffic is used as a part which is easy to damage and consume, the failure rate is relatively high, and the resistance value is used as a key performance index. In the prior art, when a slip ring for a monorail vehicle detects a resistor, a universal meter is used for directly detecting the resistance of the slip ring when the slip ring rotates, and the on-off state of the slip ring is judged according to the resistance value. Because the limitation of sliding ring and universal meter theory of operation, the circuit is switched on to the inner circle by bearing roller contact inside the sliding ring, and the inside lubricating grease that contains of bearing, lubricating grease is not electrically conductive, and intermittent contact switches on when the roller is rotatory, so the bearing is mostly high frequency intermittent conduction, and the universal meter is insensitive to the ripple resistance, only can show an average calculated value. However, in practice, a 24VDC power supply on a monorail vehicle may directly break down a bearing grease film, and a resistance value is negligible, so that a finally detected resistance value does not correspond to an actual conduction state, a resistance value detected by using a multimeter cannot represent a real conduction state of a slip ring, and a condition that the slip ring is conducted is determined to be not conducted sometimes occurs.
SUMMERY OF THE UTILITY MODEL
The utility model provides a sliding ring detection device for track traffic can detect the on-state of sliding ring, can also detect the resistance value of sliding ring simultaneously.
Therefore, the utility model discloses the technical scheme who adopts does: a slip ring detection device for rail transit comprises a power supply, a relay and an alarm, wherein the slip ring, the power supply and a control loop part of the relay are connected in series through leads to form a control loop, and the alarm, the power supply and an alarm loop part of the relay are connected in series through leads to form an alarm loop; when the power supply is switched on, if the slip ring is normally conducted, the relay works to conduct the alarm loop and the alarm works; if the slip ring resistance is overlarge, the relay does not work, the alarm loop cannot be conducted, and the alarm does not work.
Preferably, the two ends of the power supply are connected in parallel with a power supply voltmeter, and the power supply voltage is detected after the power supply is connected, so that the power supply voltage is prevented from being too low; and two ends of the slip ring are connected in parallel with a voltage division voltmeter for detecting the voltage of the slip ring when the circuit is conducted.
Preferably, the slip ring is connected to the control circuit through a positive and negative detection pen, and a quick interface is arranged between the positive and negative detection pen and the control circuit.
Further preferably, the voltage division voltmeter is connected in parallel at the fast interface.
Further preferably, the power supply is provided with a rechargeable battery with a direct-insertion charging port, the rechargeable battery is repeatedly charged by using a power adapter with corresponding voltage, resources are conveniently recycled, the rechargeable battery is used, the device can be freely moved to a use position, and the charging port is provided with an insulating waterproof cap to prevent the anode and the cathode of the charging port from being short-circuited.
Further preferably, a switch is provided between the power supply and the relay to turn on or off the power supply when necessary.
Preferably, the alarm flashes and rings when the slip ring is in conduction, and silences when the slip ring is not in conduction, so as to identify whether the slip ring is in conduction.
The utility model has the advantages that: by setting the power supply voltage, the actual working state of the slip ring on the rail transit monorail vehicle can be simulated to detect the on-off state of the slip ring, the false detection condition caused by the difference between the detection method and other factors and the actual application is avoided, and the equivalent resistance value of the slip ring can be calculated.
Drawings
Fig. 1 is a schematic view of the present invention.
Fig. 2 is a schematic view of the present invention with slip ring installed (the slip ring is in on state).
Detailed Description
The invention will be further described by way of examples with reference to the accompanying drawings:
as shown in fig. 1 and 2, the slip ring detection device for rail transit mainly comprises a power supply 1, a power supply voltmeter 2, a charging port 3, a switch 4, a relay 5, an alarm 6, a voltage division voltmeter 7, an anode quick interface 8, a cathode quick interface 9, an anode detection pen 10 and a cathode detection pen 11. The relay 5 comprises a control loop part 5.1 and an alarm loop part 5.2, and the control loop part 5.1 can control the on-off of the alarm loop part 5.2. The alarm 6 is in the working state of flashing and sounding, and in the non-working state of silencing.
The power supply 1, the control loop part 5.1 and the slip ring are connected in series through a lead to form a control loop. And a positive electrode detection pen 10 and a negative electrode detection pen 11 are respectively arranged at two ends of the slip ring, and the positive electrode detection pen 10 and the negative electrode detection pen 11 are respectively connected to the control circuit through a positive electrode quick interface 8 and a negative electrode quick interface 9. The positive quick interface 8 and the negative quick interface 9 are connected in parallel with a voltage division voltmeter, the switch 4 is arranged at the power supply 1, and the power supply voltmeter is connected in parallel with the power supply 1.
The power supply 1, the alarm loop part 5.2 and the alarm 6 are connected in series through a lead to form an alarm loop. When the resistance value of the slip ring is smaller than a specific value (the specific value is determined according to actual conditions), the control loop is conducted, the contact on the alarm loop part 5.2 is controlled to be connected to the contact IV from the position V, the conduction of the alarm loop is realized, the alarm 6 starts to give an alarm, and flickers and rings are sent out. When the resistance value of the slip ring is larger than a specific value, the control loop cannot be conducted, so that the control loop is not conducted, the alarm 6 is silent, and the slip ring is judged to be in a disconnected state.
Preferably, the power supply is a rechargeable battery with an in-line charging port 3, and the power supply is charged when the power supply voltage is less than a fixed value (determined according to the actual power supply voltage on the monorail vehicle). In order to prevent the short circuit of the anode and the cathode of the charging port, an insulating waterproof cap is arranged on the charging port 3.
The detection device comprises the following steps:
the first step is as follows: confirming that the slip ring and the electrical appliance element are normal, and the voltage of the power supply 1 is not less than a fixed value;
the second step is that: the circuit is connected, the switch 4 is closed, and the power supply 1 is switched on;
the third step: when the resistance of the slip ring is smaller than a specific value, the control circuit is conducted, the control loop part in the relay connected with the slip ring in series works to enable the alarm loop part in the relay to be communicated, meanwhile, the alarm loop is conducted, the alarm works, the slip ring is in a conducting state at the moment, the reading of the power supply voltmeter 2 is U0The reading of the voltage division voltmeter 7 is U1Based on the same current in the series circuit, can be obtained
Derived from the above
Wherein, U0For supply voltage (which can be read out), U1For the slip ring voltage to be measured (which can be read out), R1The resistance of the slip ring can be calculated by taking the reading result into the resistance of the relay (the resistance of the relay can be directly measured by using a universal meter) and R as the resistance of the slip ring to be measured;
s4: when the resistance of the slip ring is larger than the specific value, the control circuit is not conducted, and the slip ring can be judged to be not conducted.
Claims (7)
1. The utility model provides a sliding ring detection device for track traffic which characterized in that: the slip ring is connected with the power supply (1) and a control loop part (5.1) of the relay in series through leads to form a control loop, and the alarm (6) is connected with the power supply (1) and an alarm loop part (5.2) of the relay in series through leads to form an alarm loop; when the power supply (1) is switched on, if the slip ring is normally conducted, the relay (5) works to conduct the alarm loop, and the alarm (6) works; if the slip ring resistance is overlarge, the relay (5) does not work, the alarm loop cannot be conducted, and the alarm (6) does not work.
2. The slip ring detection device for rail transit of claim 1, wherein: and two ends of the power supply (1) are connected with a power supply voltmeter (2) in parallel, and two ends of the slip ring are connected with a voltage division voltmeter (7) in parallel.
3. The slip ring detection device for rail transit of claim 2, wherein: the slip ring is connected to the control circuit through the positive and negative electrode detection pens, and a quick interface is arranged between the positive and negative electrode detection pens and the control circuit.
4. The slip ring detection device for rail transit of claim 3, wherein: the voltage division voltmeter (7) is connected in parallel at the quick interface.
5. The slip ring detection device for rail transit of claim 2, wherein: the power supply (1) is provided with a rechargeable battery of a direct-insert type charging port (3), and the charging port (3) is provided with an insulating waterproof cap.
6. The slip ring detection device for rail transit of claim 2, wherein: a switch (4) is arranged between the power supply (1) and the relay (5).
7. The slip ring detection device for rail transit of claim 2, wherein: when the slip ring is conducted, the alarm (6) can flash and sound, and when the slip ring is not conducted, the alarm (6) is silent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682450.9U CN214622821U (en) | 2021-04-02 | 2021-04-02 | Slip ring detection device for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120682450.9U CN214622821U (en) | 2021-04-02 | 2021-04-02 | Slip ring detection device for rail transit |
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| Publication Number | Publication Date |
|---|---|
| CN214622821U true CN214622821U (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120682450.9U Active CN214622821U (en) | 2021-04-02 | 2021-04-02 | Slip ring detection device for rail transit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109739A (en) * | 2021-04-02 | 2021-07-13 | 重庆凯瑞传动技术有限公司 | Slip ring detection device and detection method for rail transit |
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2021
- 2021-04-02 CN CN202120682450.9U patent/CN214622821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109739A (en) * | 2021-04-02 | 2021-07-13 | 重庆凯瑞传动技术有限公司 | Slip ring detection device and detection method for rail transit |
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