Device for monitoring locking state of bottom door connecting rod of coal hopper car

Abstract

The utility model relates to the technical field of coal hopper cars, and discloses a coal hopper car bottom door connecting rod locking state monitoring device which comprises a Hall proximity switch installed at the position, close to a connecting arm, of a hopper car through an installation frame, the hopper car is located on a track, a bottom door of the hopper car is hooked by a lock hook to be locked, and the lock hook and the connecting arm are fixed in a hinged mode. The connecting arm is welded and fixed to the end of the connecting rod, the connecting rod is installed on the shaft base at the corresponding position in a sleeving mode to form fixation, an indicating rod is welded and fixed to the top of the lock hook, and a confirmation base is welded and fixed to the position, corresponding to the indicating rod, of the hopper car. According to the monitoring device, the proximity switch is used for judging the relative position of the lock hook, when the lock hook is in place, the magnetic field of the permanent magnet can be used for triggering the switch, otherwise, when the lock hook is not in place, the switch cannot be triggered, whether locking is in place or not can be rapidly distinguished by reading the triggering condition of the switch, and workers do not need to check hopper cars one by one on site; and on-site management and scheduling passage are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coal hopper cars, in particular to a monitoring device for the locking state of a bottom door connecting rod of a coal hopper car. Background Art

[0002] Coal hopper car is a special railway freight car, mainly used for transporting bulk goods such as coal and ore. Its main feature is that the lower part of the car body is equipped with a hopper, and the goods are loaded from above. When unloading, the bottom door of the hopper is opened by manpower or wind, and the goods are automatically unloaded by their own gravity. This design makes the coal hopper car have efficient and convenient loading and unloading capabilities, and is particularly suitable for power stations, ports, coal preparation, steel and other enterprises with fixed marshaling, recycling, and fixed-point loading and unloading.

[0003] When the bottom door of the coal hopper car is closed, the lock hook and the connecting rod are tightly attached, and a "dong" sound can be heard, and the bottom doors on both sides are closed at the same time. In order to enable the unloading personnel to visually observe whether the upper crank has turned to the limit position, a secondary locking confirmation device is currently installed on the coal hopper car. The relative position of the indicator rod and the confirmation seat is used for judgment. If the indicator rod does not enter the confirmation seat groove and the movable indicator rod is visually visible and completely exposed, it means that the secondary lock is not closed in place. On the contrary, if the indicator rod completely enters the confirmation seat groove, it means that the lock is in place. This confirmation method that requires visual or auditory confirmation requires special personnel to pay attention and check, which is not conducive to improving on-site traffic efficiency. Summary of the invention

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the utility model provides a coal hopper car bottom door connecting rod locking state monitoring device to solve the problems in the background technology.

[0006] In order to solve the above problems, the utility model provides the following technical solutions:

[0007] A coal hopper car bottom door connecting rod locking state monitoring device comprises a Hall proximity switch installed on the hopper car near the connecting arm position through a mounting frame, and is characterized in that: the hopper car is located on a track, the bottom door of the hopper car is locked by a locking hook, the locking hook and the connecting arm are hinged and fixed, the connecting arm is welded and fixed to the end of the connecting rod, the connecting rod set is installed on the axle seat at the corresponding position to form a fixation, an indicator rod is welded and fixed to the top of the locking hook, a confirmation seat is welded and fixed to the position corresponding to the indicator rod on the hopper car, a permanent magnet is installed on the connecting arm opposite to the Hall proximity switch position, a preamplifier is installed on the side of the hopper car, and a ground host is installed on the outer side of the track at the position corresponding to the preamplifier.

[0008] Preferably, the ground host is 2-3m away from the outer edge of the track and 1.25m above the ground.

[0009] Preferably, the preamplifier is installed on the left side of the locking inspection hole column of the side wall, and the preamplifier is 200 mm away from the column.

[0010] Compared with the prior art, the utility model provides a monitoring device for the locking state of the bottom door connecting rod of a coal hopper car, which has the following beneficial effects:

[0011] 1. The monitoring device uses a proximity switch to determine the relative position of the lock hook. When the lock hook is in place, the magnetic field of the permanent magnet can be used to trigger the switch. Conversely, when the lock hook is not in place, the switch cannot be triggered. By reading the switch triggering situation, it can quickly determine whether the lock is in place. There is no need for personnel to check each hopper car on site, which facilitates on-site management and dispatching.

[0012] 2. The monitoring device can output digital signals through the detection method of proximity switches. The digital signals can be directly read by the dispatch management center or uploaded to the cloud platform. The on-site personnel can then log in to the cloud platform through a handheld terminal to view the signals, which further facilitates on-site management. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the installation position of the Hall proximity switch in the utility model;

[0014] Figure 2 It is a schematic diagram of the installation position of the ground host in the utility model.

[0015] In the figure: 1. Track; 2. Hopper car; 3. Bottom door; 4. Connecting rod; 5. Axle seat; 6. Connecting arm; 7. Lock hook; 8. Confirmation seat; 9. Indicator rod; 10. Permanent magnet; 11. Hall proximity switch; 12. Mounting bracket; 13. Preamplifier; 14. Ground host. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] See also Figure 1 and 2, Coal hopper car bottom door connecting rod locking state monitoring device, the existing hopper car 2 bottom door 3 is locked by the lock hook 7, the lock hook 7 and the connecting arm 6 are hinged and fixed, the connecting arm 6 is welded and fixed to the end of the connecting rod 4, and the connecting rod 4 is installed on the corresponding position of the axle seat 5 to form a fixed state. The current locking state depends on the confirmation seat 8 and the indicator rod 9 for indication. The indicator rod 9 is welded and fixed to the top of the lock hook 7, and the confirmation seat 8 is welded and fixed on the hopper car 2. When the connecting rod 4 rotates and the connecting arm 6 drives the lock hook 7 to hook the lock column of the bottom door, the generally red indicator rod 9 enters the confirmation seat 8. When the personnel observe with the naked eye that the indicator rod 9 is located on the inner side of the confirmation seat 8, it can be judged that the locking is in place. When the naked eye observes that the indicator rod 9 is located on the outer side of the confirmation seat 8, it is judged that the locking is not in place. This judgment method requires manual and specific naked eye observation and judgment;

[0018] Now, the permanent magnet 10 and the Hall proximity switch 11 are used for automatic monitoring. The permanent magnet 10 is glued and fixed on the outer wall of the connecting arm 6 near the top. The Hall proximity switch 11 is installed on the outer side of the hopper car 2 at the position corresponding to the permanent magnet 10. The Hall proximity switch 11 is bolted on the mounting frame 12, and the mounting frame 12 is welded and fixed on the hopper car 2 at the corresponding position.

[0019] A ground host 14 is also installed on the outside of the track 1 on which the hopper car 2 travels. The ground host 14 is 2-3m away from the outer edge of the track 1 and 1.25m above the ground. The ground host 14 uses an industrial control all-in-one computer as the control core, and is integrated with an antenna and a read-write host. A preamplifier 13 is installed on the side of the hopper car 2 corresponding to the ground host 14. The preamplifier 13 is installed on the left side of the locking inspection hole column of the side wall. The preamplifier 13 is 200mm away from the column. The preamplifier 13 maintains the same height as the antenna of the ground host 14. The preamplifier 13 is electrically connected to the Hall proximity switch 11, and the preamplifier 13 communicates data with the ground host 14 through the read-write host.

[0020] When the connecting rod 4 rotates to lock, when the indicator rod 9 enters the inner side of the confirmation seat 8, the permanent magnet 10 approaches the Hall proximity switch 11, and the principle of the Hall proximity switch 11 is used to sense the approach of the magnetic object, and then the switch is triggered to output a "locked in place" signal. At this time, the naked eye can observe that the indicator rod 9 is located inside the confirmation seat 8, and the preamplifier 13 sends the received Hall proximity switch 11 signal outward. When the hopper car 2 passes the ground host 14 on the track 1, the read-write host of the ground host 14 reads the signal and transmits the signal to the dispatching center or the supervision center by wire or wireless means. The center personnel can remotely determine whether the "lock is in place" according to the result of the received signal output;

[0021] When the indicator rod 9 does not enter the confirmation seat 8 when observed by naked eyes, the permanent magnet 10 is far away from the Hall proximity switch 11, and the magnetic field strength is insufficient to trigger the switch, and the "not locked in place" signal is continuously output. The preamplifier 13 also sends a signal, and the ground host 14 can determine that the lock is not in place when receiving it. At this time, the existing dispatching system or on-site broadcast can be used to remind the driver, or the cloud platform can be used. The ground host 14 reads the signal and sends it to the cloud platform. The management personnel can log in to the cloud platform through the handheld terminal to determine the locking status in real time.

Claims

1. A device for monitoring the locking state of a bottom door connecting rod of a coal hopper car, comprising a Hall proximity switch (11) mounted on a hopper car (2) near a connecting arm (6) through a mounting frame (12), characterized in that: The hopper car (2) is located on the track (1), the bottom door (3) of the hopper car (2) is locked by hooking with a lock hook (7), the lock hook (7) is hingedly fixed to the connecting arm (6), the connecting arm (6) is welded and fixed to the end of the connecting rod (4), the connecting rod (4) is installed on the shaft seat (5) at the corresponding position to form a fixed position, an indicator rod (9) is welded and fixed to the top of the lock hook (7), a confirmation seat (8) is welded and fixed to the position of the hopper car (2) corresponding to the indicator rod (9), a permanent magnet (10) is installed on the connecting arm (6) at a position opposite to the Hall proximity switch (11), a preamplifier (13) is installed on the side of the hopper car (2), and a ground host (14) is installed on the outer side of the track (1) at a position corresponding to the preamplifier (13).

2. The coal hopper car bottom door connecting rod locking state monitoring device according to claim 1 is characterized in that: The ground host (14) is 2-3 m away from the outer edge of the track (1) and is 1.25 m above the ground.

3. The device for monitoring the locking state of the bottom door connecting rod of a coal hopper car according to claim 2 is characterized in that: The preamplifier (13) is installed at the left side of the locking inspection hole column of the side wall, and the preamplifier (13) is 200 mm away from the column.

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