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Locomotive and mechanical delay safety interlocking system and method

A safety interlocking and mechanical technology, applied to locomotives, vehicle locks, building locks, etc., can solve the problems of high cost, large space occupation, cumbersome operation steps of the interlocking scheme, etc., and achieve low cost, small space occupation and easy implementation Effect

Active Publication Date: 2022-01-11
ZHUZHOU ELECTRIC LOCOMOTIVE CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a locomotive and mechanical time-delay safety interlock system and method to solve the operation safety problem caused by the high-voltage electrical screen cabinet installed with capacitive equipment not being discharged to the safe voltage range after the locomotive is powered off, and the current The interlocking scheme has the problems of cumbersome operation steps, large space occupation and high cost

Method used

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  • Locomotive and mechanical delay safety interlocking system and method
  • Locomotive and mechanical delay safety interlocking system and method
  • Locomotive and mechanical delay safety interlocking system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0041] Such as figure 1 As shown, a kind of mechanical time-delay safety interlock system provided in this embodiment includes a mechanical time-delay safety device 1 located in the driver's cab; the mechanical time-delay safety device 1 includes an interlock logic module, a time delay module, a first A lock cylinder, a second lock cylinder, a key A 11 matching the first lock cylinder, and a key B 12 matching the second lock cylinder. Key A 11 is fixedly connected with locomotive power supply key 2, such as figure 2 As shown, the key B 12 is fixedly connected with the cabinet door key 3 of the high-voltage electrical screen cabinet, as shown in image 3 shown.

[0042] The interlock logic module is used to only pull out the key A 11 from the first lock cylinder or the key B 12 from the second lock cylinder in each operation, that is, when the key A 11 is pulled out from the first lock cylinder, The key B 12 cannot be pulled out from the second lock cylinder; or after the k...

Embodiment 2

[0060] Such as figure 1 As shown, a kind of mechanical time-delay safety interlock system provided in this embodiment includes a mechanical time-delay safety device 1 located in the driver's cab; the mechanical time-delay safety device 1 includes an interlock logic module, a time delay module, a first A lock cylinder, a second lock cylinder, a key A 11 matching the first lock cylinder, and a key B 12 matching the second lock cylinder. Key A 11 is fixedly connected with locomotive power supply key 2, such as figure 2 As shown, the key B 12 is fixedly connected with the cabinet door key 3 of the high-voltage electrical screen cabinet, as shown in image 3 shown.

[0061] The interlock logic module is used to only pull out the key A 11 from the first lock cylinder or the key B 12 from the second lock cylinder in each operation, that is, when the key A 11 is pulled out from the first lock cylinder, The key B 12 cannot be pulled out from the second lock cylinder; or after the k...

Embodiment 3

[0072] Such as figure 1 As shown, a kind of mechanical time-delay safety interlock system provided in this embodiment includes a mechanical time-delay safety device 1 located in the driver's cab; the mechanical time-delay safety device 1 includes an interlock logic module, a time delay module, a first A lock cylinder, a second lock cylinder, a key A 11 matching the first lock cylinder, and a key B 12 matching the second lock cylinder. Key A 11 is fixedly connected with locomotive power supply key 2, such as figure 2 As shown, the key B 12 is fixedly connected with the cabinet door key 3 of the high-voltage electrical screen cabinet, as shown in image 3 shown.

[0073] The interlock logic module is used to only pull out the key A 11 from the first lock cylinder or the key B 12 from the second lock cylinder in each operation, that is, when the key A 11 is pulled out from the first lock cylinder, The key B 12 cannot be pulled out from the second lock cylinder; or after the k...

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Abstract

The invention discloses a locomotive and mechanical delay safety interlocking system and method. The system comprises mechanical delay safety equipment; the mechanical delay safety equipment comprises an interlocking logic module, a delay module, a first lock cylinder, a second lock cylinder, a key A and a key B; the key A is fixedly connected with a locomotive power supply key, and the key B is fixedly connected with the cabinet door key of a high-voltage electrical screen cabinet; the interlocking logic module is used for only pulling out the key A or the key B during each time of operation; the delay module is used for pulling out the key B only after the delay time is over when the key A is inserted into the first lock cylinder; when the locomotive is powered off, the locomotive power supply key is pulled out, the key A is inserted into the first lock cylinder, due to the delay function, the key B can be pulled out only after the delay time ends, the capacitor equipment is continuously discharged by utilizing the delay time, and the voltage in the high-voltage electrical cabinet is reduced to the safe operation voltage of the human body, and the safety of the operator during the operation of the high-voltage electrical screen cabinet is ensured.

Description

technical field [0001] The invention belongs to the technical field of control between various equipment of a locomotive, and in particular relates to a delay interlocking system and method for safe operation of a high-voltage electrical panel cabinet after a locomotive power failure. Background technique [0002] In the high-voltage electrical system screen cabinets equipped with locomotives, capacitor equipment is generally installed in the middle DC circuit. After the locomotive is powered off, the capacitors will have a continuous discharge time ranging from 5 to 8 minutes to reduce the voltage level in the electrical screen cabinets. Below the safe operating voltage of the human body (<36V). [0003] For example, capacitive devices are installed in both the locomotive traction converter cabinet and the DCDC cabinet. According to Article 8.3.2 of EN50153-2014, if there is a capacitive discharge element in the panel cabinet, it is necessary to reduce the voltage in th...

Claims

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Application Information

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IPC IPC(8): B61C17/00B61C17/04E05B77/00E05B83/00H02B1/38
CPCB61C17/00B61C17/04E05B77/00E05B83/00H02B1/38
Inventor 刘斌徐刚张鑫李先岭徐兆堃张涵朱文明李晶
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO
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