Improved anti-collision device of dry quenching elevator

Abstract

The utility model discloses an improved anti-collision device of a coke dry quenching hoister, which comprises a coke tank car and a hoister, the hoister drives the coke tank car to walk on a track, the track is arranged on a rack, the coke tank car is connected with a mounting plate, the mounting plate is provided with a pull rope switch, and the pull rope switch is connected with the rack. A stop arm assembly is installed on the machine frame, when the coke tank truck runs to the limit position due to faults, the stop arm assembly collides with an induction rod on the pull rope switch, the pull rope switch is electrically connected with a PLC, and the PLC is electrically connected with the elevator. The beneficial effects of the utility model are that the pull-cord switch is adopted to replace a traditional photoelectric sensor, the service life is long, the mode that the pull-cord switch commonly uses a steel wire rope to trigger an induction rod is abandoned, the stop arm assembly is designed to directly trigger the induction rod of the pull-cord switch, the phenomenon that the steel wire rope is easy to loosen in connection is avoided, the response speed is fast, and the operation is convenient. The service life is long.

Description

Technical Field:

[0001] The utility model relates to the technical field of coke dry quenching hoists, in particular to an improved anti-collision device for a coke dry quenching hoist. Background Art:

[0002] The function of a coke dry quenching hoist is to transport coke cans. During the coke quenching operation, the coke dry quenching hoist transports the coke can upward to a specified height and then horizontally moves to directly above the coke can. Due to the large mass of the coke can, the working load of the hoist is large, the start and stop are frequent, and the working conditions are unstable. The hoist is prone to failures. Therefore, photoelectric sensors such as proximity switches are usually installed on the walking track for automatic limit. However, the dust is large and the temperature is high around the coke dry quenching equipment, and the photoelectric sensors are prone to failure. Therefore, the Chinese patent with the patent number 201921860166.5 discloses an "anti-collision device for a coke dry quenching hoist", which uses a pull rope switch for limit and matches the design of a steel wire rope and a rotating collision arm. The pull rope switch is a common emergency stop switch, which includes a housing. An induction rod is arranged on the housing, and a connection hole for connecting the steel wire rope is arranged on the induction rod. When the coke dry quenching hoist runs abnormally, the coke dry quenching hoist hits the rotating collision arm, and the rotating collision arm pulls the induction rod to rotate through the steel wire rope to achieve emergency stop of the equipment. However, the actual use situation is that the steel wire rope is prone to looseness, and the tightness of the steel wire rope is different due to seasonal changes. The rotating collision arm cannot maintain the designed angle, resulting in the rotating collision arm being unable to timely pull the induction rod to rotate through the steel wire rope, and there are still relatively large potential safety hazards. Content of the Utility Model:

[0003] The purpose of the utility model is to provide an improved anti-collision device for a coke dry quenching hoist to solve the technical problem that the steel wire rope of the pull rope switch in the prior art is unstable, resulting in the possible failure to trigger the pull rope sensor in a timely manner.

[0004] The content of the utility model: An improved anti-collision device for a coke dry quenching hoist, which includes a coke can car and a hoist. The hoist drives the coke can car to move on a track, and the track is installed on a frame. An installation plate is connected to the coke can car, and a pull rope switch is installed on the installation plate. A stop arm assembly is installed on the frame. When the coke can car fails to travel to the limit position, the stop arm assembly collides with the induction rod on the pull rope switch. The pull rope switch is electrically connected to a PLC controller, and the PLC controller is electrically connected to the hoist.

[0005] Further, the stop arm assembly includes a vertical plate, the vertical plate is installed on the frame, and a collision rod is vertically connected to the vertical plate. The collision rod is used to trigger the induction rod on the pull rope switch.

[0006] Further, a roller is rotatably connected to the collision rod, and the roller is used to trigger the induction rod on the pull rope switch.

[0007] Further, a speed reduction component is provided on the rack, and the speed reduction component is used to reduce the traveling speed of the coke pot car at the limit position.

[0008] Further, the speed reduction component includes a limit plate connected to the rack. A sliding hole is formed in the limit plate, and a speed reduction rod is slidably connected in the sliding hole. Limit platforms are connected to both ends of the speed reduction rod, and a compression spring is sleeved on the speed reduction rod. The compression spring is located between the mounting plate and the limit plate.

[0009] Further, a rubber pad is installed on the limit platform.

[0010] The beneficial effects of the present utility model: The present utility model uses a pull rope switch to replace the traditional photoelectric sensor, with a high service life. At the same time, it abandons the way of using a steel wire rope to trigger the induction rod in the common use of pull rope switches, and designs a stop arm assembly to directly trigger the induction rod of the pull rope switch, avoiding the phenomenon that the steel wire rope is prone to connection looseness, with a fast response speed and a high service life, and is worthy of popularization and use. Description of the drawings:

[0011] Figure 1 is a perspective view of the present utility model;

[0012] Figure 2 is Figure 1 an enlarged structural schematic diagram of part A of

[0013] Figure 3 is a control block diagram of the present utility model;

[0014] Figure 4 is a partial view of the top view of the present utility model;

[0015] In the figure, coke pot car 1, track 2, rack 3, mounting plate 4, pull rope switch 5, induction rod 6, reset rod 7, vertical plate 8, impact rod 9, roller 10, limit plate 11, speed reduction rod 12, compression spring 13, limit platform 14, hoist 15, PLC controller 16. Detailed implementation manners:

[0016] Embodiment 1:

[0017] As Figures 1 to 3An improved anti-collision device for a coke dry quenching hoist, which includes a coke pot car 1 and a hoist 15. The hoist 15 drives the coke pot car 1 to travel on a track 2, and the track 2 is installed on a frame 3. An installation plate 4 is connected to the coke pot car 1, and a pull wire switch 5 is installed on the installation plate 4. A stop arm assembly is installed on the frame 3. When the coke pot car 1 malfunctions and travels to the limit position, the stop arm assembly collides with an induction rod 6 on the pull wire switch 5. The pull wire switch 5 is electrically connected to a PLC controller 16, and the PLC controller 16 is electrically connected to the hoist 15. The stop arm assembly includes a vertical plate 8, the vertical plate 8 is installed on the frame 3, and a collision rod 9 is vertically connected to the vertical plate 8. The collision rod 9 is used to trigger the induction rod 6 on the pull wire switch 5.

[0018] As Figure 4 shown, in order to reduce friction and prevent damage to the induction rod 6, a roller 10 is rotatably connected to the collision rod 9, and the roller 10 is used to trigger the induction rod 6 on the pull wire switch 5.

[0019] During specific operation, when the coke pot car 1 runs to the limit position, the collision rod 9 collides with the induction rod 6, causing the induction rod 6 to rotate at an angle. At this time, the pull wire switch 5 sends a signal to the PLC controller 16, and the PLC controller 16 controls the hoist 15 to stop urgently to avoid the occurrence of dangerous accidents.

[0020] Embodiment 2:

[0021] Embodiment 2 adds a deceleration component on the basis of Embodiment 1, which can further prevent the pull wire switch 5 from being damaged due to excessive force. Specifically, as Figure 2 and Figure 3 shown, a deceleration component is provided on the frame 3, and the deceleration component is used to reduce the traveling speed of the coke pot car 1 at the limit position. The deceleration component includes a limit plate 11, the limit plate 11 is connected to the frame 3, a sliding hole is opened on the limit plate 11, a deceleration rod 12 is slidably connected in the sliding hole, limit platforms 14 are connected to both ends of the deceleration rod 12, and a compression spring 13 is sleeved on the deceleration rod 12. The compression spring 13 is located between the installation plate 4 and the limit plate 11. Rubber pads are installed on the limit platforms 14. During specific operation, when the coke pot car 1 runs to the limit position, the installation plate 4 first collides with the limit platform 14. Due to the action of the compression spring 13, the coke pot car 1 can be effectively decelerated to prevent the coke pot car 1 from having too high a speed and large impact force, which may damage the pull wire switch 5.

[0022] Since the above are only the preferred embodiments of the present invention and are not used to limit the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An improved anti-collision device for a dry coke quenching elevator, comprising a coke tank car (1) and an elevator (15), wherein the elevator (15) drives the coke tank car (1) to travel on a track (2), wherein the track (2) is mounted on a frame (3), and wherein: A mounting plate (4) is connected to the coke tank car (1), a pull-rope switch (5) is installed on the mounting plate (4), and a barrier arm assembly is installed on the frame (3). When the coke tank car (1) fails and travels to an extreme position, the barrier arm assembly collides with a sensing rod (6) on the pull-rope switch (5), the pull-rope switch (5) is electrically connected to a PLC controller (16), and the PLC controller (16) is electrically connected to the hoist (15).

2. The improved anti-collision device for dry quenching coke elevator according to claim 1 is characterized in that: The barrier arm assembly comprises a vertical plate (8), the vertical plate (8) being mounted on the frame (3), a striking rod (9) being vertically connected to the vertical plate (8), the striking rod (9) being used to trigger the sensing rod (6) on the pull-cord switch (5).

3. The improved anti-collision device for dry quenching coke elevator according to claim 2, characterized in that: A roller (10) is rotatably connected to the striker rod (9), and the roller (10) is used to trigger the sensing rod (6) on the pull-cord switch (5).

4. An improved anti-collision device for dry coke quenching elevator according to any one of claims 1 to 3, characterized in that: A deceleration component is arranged on the frame (3), and the deceleration component is used to reduce the travel speed of the coke tank car (1) at the extreme position.

5. The improved anti-collision device for dry quenching coke elevator according to claim 4 is characterized in that: The deceleration assembly comprises a limit plate (11), the limit plate (11) is connected to the frame (3), a sliding hole is provided on the limit plate (11), a deceleration rod (12) is slidably connected in the sliding hole, both ends of the deceleration rod (12) are connected to limit platforms (14), a compression spring (13) is mounted on the deceleration rod (12), and the compression spring (13) is located between the mounting plate (4) and the limit plate (11).

6. The improved anti-collision device for dry quenching coke elevator according to claim 5, characterized in that: A rubber pad is installed on the limiting platform (14).

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