CN216994342U - Micro switch of rail vehicle barrier and derailment detection device - Google Patents
Micro switch of rail vehicle barrier and derailment detection device Download PDFInfo
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- CN216994342U CN216994342U CN202220945549.8U CN202220945549U CN216994342U CN 216994342 U CN216994342 U CN 216994342U CN 202220945549 U CN202220945549 U CN 202220945549U CN 216994342 U CN216994342 U CN 216994342U
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Abstract
The utility model provides a microswitch of a rail vehicle obstacle and derailment detection device. Rail vehicle barrier and derailment detection device micro-gap switch includes: barrier and derailment detection device be provided with support curb plate and n font spring board on barrier and the derailment detection device, support curb plate front end is provided with barrier detection micro-actuated switch, n font spring board front end be provided with barrier detection micro-actuated switch paired barrier detection beacon, support curb plate top is provided with the derailment and detects micro-actuated switch, n font spring board top is provided with the derailment detection beacon paired with the derailment detection micro-actuated switch. The microswitch for detecting the obstacles and the derailment of the railway vehicle has the advantages of good vibration resistance, high reliability of redundant design, fault self-detection, small size, convenience in installation and less maintenance workload of a non-contact wearing part.
Description
Technical Field
The utility model relates to the technical field of unmanned driving safety of rail transit trains, in particular to a microswitch of a rail vehicle barrier and derailment detection device.
Background
International electrotechnical commission standard IEC 62267_2009b railway applications-automatic rail transit steering (AUGT) -safety requirements:
8.5.5 vehicle-mounted obstacle detection device
Obstacle detection devices, which are located at the front end of the train, trigger an alarm at the latest when an obstacle is touched.
8.5.6 derailment detection device
The derailment detection means minimally monitors the first wheel pair in real time and applies emergency braking when derailing.
The first part of the safety requirements of the national standard GB/T32588.1-2016 rail transit automated urban rail transit (AUGT) is as follows: and (4) summarizing:
8.6.6 vehicle-mounted obstacle detection device
The obstacle detecting device should detect an obstacle at least when coming into contact with an obstacle in front of the train. For each specific project, the detection requirements of the obstacle should be determined by the traffic authorities and the safety authorities. When an obstacle is detected, the train should be braked urgently.
8.6.7 derailment monitoring equipment
The derailment monitoring device should monitor at least the axle at the front end of the train operation and, when activated, should initiate emergency braking. The technical requirements of derailment monitoring and the design of derailment monitoring equipment are in accordance with the technical specifications of trains and the design requirements of lines.
According to the unmanned safety requirements of domestic and foreign rail transit trains, for unmanned automatic urban rail transit trains, a vehicle-mounted obstacle and derailment detection device must be carried, and at the latest when the vehicle collides with an obstacle on a rail surface or a first wheel pair derails, the train immediately implements emergency braking, and relevant alarm information is reported to an Operation Control Center (OCC).
A large number of unmanned (automatic operation) rail transit systems are adopted at home and abroad, barriers and derailment detection devices are loaded on trains, and an industrial travel switch is generally adopted as a triggering alarm sensor. Because the industrial travel switch lacks the vibration standard, hardly satisfy rolling stock equipment 'IEC 61373 supplyes rolling stock equipment impact vibration test' of vibration requirement, barrier and derailment detection device install on the bogie frame, belong to 2 types in the standard, and vertical, horizontal and longitudinal impact test standard is 30 g.
Therefore, it is desirable to provide a micro switch for detecting obstacles and derailment of a railway vehicle to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide the microswitch of the rail vehicle obstacle and derailment detection device, which has the advantages of good vibration resistance, high redundancy design reliability, fault self-checking, small volume, convenience in installation and less maintenance workload of a non-contact wearing part.
In order to solve the above technical problems, the present invention provides a microswitch for a rail vehicle obstacle and derailment detection apparatus, comprising: barrier and derailment detection device be provided with support curb plate and n font spring board on barrier and the derailment detection device, support curb plate front end is provided with barrier detection micro-actuated switch, n font spring board front end be provided with barrier detection micro-actuated switch paired barrier detection beacon, support curb plate top is provided with the derailment and detects micro-actuated switch, n font spring board top is provided with the derailment detection beacon paired with the derailment detection micro-actuated switch.
Preferably, the sensing surfaces of the obstacle detection micro-switch and the derailment detection micro-switch are parallel to the sensing surfaces of the obstacle detection beacon and the derailment detection beacon which are paired with each other, and the center lines of the sensing surfaces are aligned, so that the obstacle detection micro-switch and the derailment detection micro-switch are arranged in a close-distance and non-shielding manner.
Preferably, the obstacle detection microswitch or the derailment detection microswitch includes: two magnetic switches, two resistors and an inductance coil; two magnetic switches, two resistances and inductance coils are all welded on the PCB to form a circuit, and the inside of the obstacle detection beacon or the derailment detection beacon is a cylindrical magnetic object.
Preferably, the two magnetic switches are arranged in a redundant manner, and are used for improving the reliability of the obstacle detection micro-switch or the derailment detection micro-switch.
Preferably, each magnetic switch inside the obstacle detection microswitch or the derailment detection microswitch is connected with a resistor in parallel and used for diagnosing circuit breaking faults.
Preferably, inductance coils connected in parallel are arranged in the obstacle detection micro switch and the derailment detection micro switch and used for fault self-detection of the magnetic switch.
Preferably, the obstacle detection beacon or the derailment detection beacon may be provided with a spacer for adjusting a sensing distance between the obstacle detection micro switch or the derailment detection micro switch and the obstacle detection beacon or the derailment detection beacon.
Preferably, the internal devices of the obstacle detection micro-switch, the derailment detection micro-switch, the obstacle detection beacon and the derailment detection beacon are all packaged by high-strength insulating glue.
Preferably, the housing of the obstacle detection microswitch, the derailment detection microswitch, the obstacle detection beacon and the derailment detection beacon is made of aluminum or copper.
Compared with the related art, the microswitch for the rail vehicle obstacle and derailment detection device provided by the utility model has the following beneficial effects:
the double-sensing-unit redundancy design is adopted, the sensing magnetic field is used for triggering the opening and closing, the problem of contact abrasion of the feeler lever of the industrial travel switch is solved, and the double-sensing-unit redundancy switch has the advantages of good vibration resistance, high redundancy design reliability, self-checking of faults, small size, convenience in installation and less maintenance workload of a non-contact abrasion part.
Drawings
FIG. 1 is a schematic structural view of a rail vehicle obstacle and derailment detection apparatus according to the present invention;
FIG. 2 is a schematic structural view of a rail vehicle obstacle and derailment detection apparatus according to the present invention;
FIG. 3 is a schematic view of the internal structure of the device for detecting obstacles and derailment of a railway vehicle and the arrangement of the micro-switches;
FIG. 4 is a schematic diagram of an obstacle detection microswitch and an obstacle detection beacon in a microswitch of a rail vehicle obstacle and derailment detection apparatus provided by the present invention;
fig. 5 is a circuit diagram of a microswitch of the rail vehicle obstacle and derailment detection device provided by the utility model.
Reference numbers in the figures: 1. obstacle and derailment detection device, 2, support curb plate, 3, n font spring board, 4, obstacle detection micro-gap switch, 5, obstacle detection beacon, 6, derailment detection micro-gap switch, 7, derailment detection beacon, 8, magnetic switch, 9, resistance, 10, inductance coils.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Example 1
As shown in fig. 1-5, a micro switch for a rail vehicle obstacle and derailment detection device comprises: the obstacle and derailment detection device 1 is characterized in that a support side plate 2 and an n-shaped spring plate 3 are arranged on the obstacle and derailment detection device 1, an obstacle detection micro-motion switch 4 is arranged at the front end of the support side plate 2, an obstacle detection beacon 5 matched with the obstacle detection micro-motion switch 4 is arranged at the front end of the n-shaped spring plate 3, a derailment detection micro-motion switch 6 is arranged at the top of the support side plate 2, a derailment detection beacon 7 matched with the derailment detection micro-motion switch 6 is arranged at the top of the n-shaped spring plate 3, when a detection cross beam impacts an obstacle or a vehicle derails and impacts a steel rail, the n-shaped spring plate 3 of the suspension detection cross beam generates backward or upward deformation due to impact force, so that the obstacle detection beacon 5 arranged at the front end of the n-shaped spring plate 3 or the derailment detection beacon 7 arranged at the top of the n-shaped spring plate 3 is driven to be respectively far away from the obstacle detection micro-motion switch 4 or the derailment detection micro-motion switch 6, when the obstacle detection beacon 5 or the derailment detection beacon 7 is away from the obstacle detection microswitch 4 or the derailment detection microswitch 6 by a certain distance, the obstacle detection microswitch 4 or the derailment detection microswitch 6 is switched off, and an obstacle or derailment alarm signal is output to respectively realize the detection alarm of the obstacle and the derailment.
Example 2
As shown in fig. 1 to 5, the sensing surfaces of the obstacle detection microswitch 4 and the derailment detection microswitch 6 are parallel to the sensing surfaces of the obstacle detection beacon 5 and the derailment detection beacon 7, and the center lines of the sensing surfaces are aligned, and the sensing surfaces are arranged at a close distance without shielding.
Example 3
As shown in fig. 1 to 5, the obstacle detection microswitch 4 or the derailment detection microswitch 6 includes therein: two magnetic switches 8, two resistors 9 and an inductance coil 10; two magnetic switches 8, two resistors 9 and an inductance coil 10 are all welded on a PCB to form a circuit, the inside of the obstacle detection beacon 5 or the derailment detection beacon 7 is a cylindrical magnetic object, and when the obstacle detection beacon 5 or the derailment detection beacon 7 leaves the obstacle detection micro-switch 4 or the derailment detection micro-switch 6 for a certain distance, a magnetic field between the obstacle detection micro-switch 4 or the derailment detection micro-switch 6 and the obstacle detection beacon 5 or the derailment detection beacon 7 changes, so that the obstacle detection micro-switch 4 or the derailment detection micro-switch 6 is switched off, an obstacle or derailment alarm signal is output, and detection and alarm of the obstacle and derailment are respectively realized.
Furthermore, the two magnetic switches 8 are arranged in a redundant manner, so that the reliability of the obstacle detection microswitch 4 or the derailment detection microswitch 6 is improved.
Furthermore, each magnetic switch 8 inside the obstacle detection microswitch 4 or the derailment detection microswitch 6 is connected with a resistor in parallel and is used for diagnosing circuit breaking faults.
Further, inductance coils 10 connected in parallel are arranged inside the obstacle detection micro switch 4 and the derailment detection micro switch 6 and used for fault self-detection of the magnetic switch 8.
Example 4
As shown in fig. 1 to 5, the addition or subtraction of a spacer to the obstacle detection beacon 5 or the derailment detection beacon 7 can adjust the sensing distance between the obstacle detection micro-switch 4 or the derailment detection micro-switch 6 and the obstacle detection beacon 5 or the derailment detection beacon 7, thereby adjusting the impact triggering load to which the obstacle detection micro-switch 4 or the derailment detection micro-switch 6 gives an alarm.
Example 5
The internal devices of the obstacle detection micro switch 4, the derailment detection micro switch 6, the obstacle detection beacon 5 and the derailment detection beacon 7 are all packaged by high-strength insulating glue, and the vibration resistance is high.
Example 6
As shown in fig. 1 to 5, the housing of the obstacle detection micro-switch 4, the derailment detection micro-switch 6, the obstacle detection beacon 5, and the derailment detection beacon 7 is made of aluminum or copper, so that the transmission of the magnetic field is not blocked.
The minimum sizes of the obstacle detection micro-switch 4 and the derailment detection micro-switch 6 are 32 multiplied by 16mm, the diameter of a longitudinally arranged element mounting hole is 8-10 mm, the depth is 18-28 mm, and the top of a transversely arranged wire outlet groove is provided with M5-M8 jackscrew threads for fixing a wire pressing line.
The obstacle detection micro-switch 4 and the derailment detection micro-switch 6 are L-shaped structures, can be arranged on a fixing plate with a minimum square hole of 32 multiplied by 16mm, enable sensing surfaces to be exposed without shielding, are mutually inducted with the corresponding obstacle detection beacon 5 and the corresponding derailment detection beacon 7, and are fixed on the support side plate 2 by 2M 5-M8 bolts.
The obstacle detection beacon 5 and the derailment detection beacon 7 are cuboids, the minimum size is 32 multiplied by 20 multiplied by 10mm, the installation hole diameter of the magnetic material is 6-10 mm, the depth is 10-30 mm, and the beacons are fixed on the n-shaped spring plate 3 through 2M 5-M8 bolts.
The embodiment of the utility model discloses a microswitch for a rail vehicle obstacle and derailment detection device, which is named as the microswitch for the rail vehicle obstacle and derailment detection device, but can also be applied to other fields except the rail vehicle obstacle and derailment detection device according to the principle, fault self-detection and structural characteristics of the microswitch.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A rail vehicle barrier and derailment detection device micro-switch, comprising:
barrier and derailment detection device be provided with support curb plate and n font spring board on barrier and the derailment detection device, support curb plate front end is provided with barrier detection micro-actuated switch, n font spring board front end be provided with barrier detection micro-actuated switch paired barrier detection beacon, support curb plate top is provided with the derailment and detects micro-actuated switch, n font spring board top is provided with the derailment detection beacon paired with the derailment detection micro-actuated switch.
2. The railway vehicle obstacle and derailment detection device microswitch of claim 1, wherein the sensing surfaces of the obstacle detection microswitch and the derailment detection microswitch are parallel to and centered on the center line of the paired obstacle detection beacon and derailment detection beacon sensing surfaces, and are arranged without shielding at a close distance.
3. The rail vehicle obstacle and derailment detection device microswitch according to claim 1, wherein the obstacle detection microswitch or the derailment detection microswitch internally comprises: two magnetic switches, two resistors and an inductance coil; two magnetic switches, two resistances and inductance coils are all welded on the PCB to form a circuit, and the inside of the obstacle detection beacon or the derailment detection beacon is a cylindrical magnetic object.
4. The rail vehicle obstacle and derailment detection device microswitch of claim 3, wherein the two magnetic switches are redundant to each other for improving the reliability of the obstacle or derailment detection microswitch.
5. The rail vehicle obstacle and derailment detection device microswitch of claim 3, wherein each magnetic switch inside the obstacle detection microswitch or the derailment detection microswitch is connected in parallel with a resistor for diagnosing a circuit breaking fault.
6. The rail vehicle obstacle and derailment detection device microswitch of claim 3, wherein the obstacle detection microswitch and the derailment detection microswitch are internally provided with parallel inductance coils for fault self-detection of the magnetic switch.
7. The railway vehicle obstacle and derailment detection device microswitch of claim 1, wherein the obstacle or derailment detection beacon is capable of adjusting a sensing distance between the obstacle or derailment detection microswitch and the obstacle or derailment detection beacon.
8. The rail vehicle obstacle and derailment detection device microswitch of claim 1, wherein the obstacle detection microswitch, the derailment detection microswitch, the obstacle detection beacon and the internal devices of the derailment detection beacon are all encapsulated by high-strength insulating glue.
9. The rail vehicle obstacle and derailment detection device microswitch of claim 1, wherein the obstacle detection microswitch, the derailment detection microswitch and the obstacle detection beacon, the derailment detection beacon housing is aluminum or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220945549.8U CN216994342U (en) | 2022-04-22 | 2022-04-22 | Micro switch of rail vehicle barrier and derailment detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220945549.8U CN216994342U (en) | 2022-04-22 | 2022-04-22 | Micro switch of rail vehicle barrier and derailment detection device |
Publications (1)
| Publication Number | Publication Date |
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| CN216994342U true CN216994342U (en) | 2022-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220945549.8U Active CN216994342U (en) | 2022-04-22 | 2022-04-22 | Micro switch of rail vehicle barrier and derailment detection device |
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- 2022-04-22 CN CN202220945549.8U patent/CN216994342U/en active Active
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