Safety protection device for preventing loading chute from scratching locomotive

Abstract

The safety protection device comprises a first module and a second module, the first module comprises a safety hook fixedly arranged on the chute, the safety hook can move in the longitudinal direction along with the chute, when the chute ascends to the highest position, a hanging opening of the safety hook can stretch out of a bottom plate of a quantitative bin layer, and the bottom plate of the quantitative bin layer is provided with an opening. An electric push rod and a buffer spring cotter are arranged on the bottom plate, the buffer spring cotter can transversely move along with the electric push rod, and the second module comprises a first position induction sensor used for sending a first signal to the control module when the chute is lifted to the highest position; the first control module is used for starting the electric push rod when receiving the first signal and controlling the buffer spring bolt to be inserted into or withdrawn from the hanging opening of the safety hook through the electric push rod. According to the utility model, the buffer spring bolt can be automatically inserted into and withdrawn from the safety hook, the position of the chute can be accurately detected, and the hidden danger that a locomotive is possibly scratched by a locomotive due to light weight and self-leakage of the chute is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of product loading equipment, in particular to a safety protection device for preventing a loading chute from scratching a locomotive. Background Art

[0002] The existing train loading warehouse mostly adopts the method of fixed warehouse + telescopic chute + train locomotive traction. When the train is traction, since the locomotive is higher than the train carriage, the telescopic chute needs to be shortened when passing the locomotive. Figure 1 , the telescopic chute needs to be extended when loading the carriage, see Figure 2 .

[0003] When the locomotive passes, in order to ensure the safety of the train, it is required to ensure that the loading chute is at the highest position when the train passes, and cannot fall by itself, so as to ensure the safety of equipment and personnel. The current practice is to lift the loading chute to the highest position when the loading operation is not in progress, weld a safety hook on the chute, extend the safety hook to the quantitative bin layer, set a safety pin on the hook, and connect the loading chute to the tower foundation beam by manual fixing to prevent the cylinder from self-depressurizing and slowly dropping and scratching the locomotive. However, this solution has two defects: First, it requires manual operation, and there is an incident of forgetting to latch or not latching due to the operator's lack of responsibility. Second, whether it is in place requires personnel observation, and the lightweight self-release cannot be observed with the naked eye, and there is still a risk of scratching the locomotive. Therefore, a set of automatic devices is needed to solve the problems of manual error operation and inadequate chute position detection to ensure the safe passage of the locomotive and integrated operation. Utility Model Content

[0004] The utility model aims to provide a safety protection device for preventing a loading chute from scratching a locomotive, so as to overcome the above-mentioned shortcomings in the prior art.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is implemented as follows:

[0006] A safety protection device for preventing a loading chute from scratching a locomotive comprises module one and module two. Module one comprises a safety hook fixed on the chute, the safety hook can move longitudinally with the chute, when the chute rises to the highest position, the hanging opening of the safety hook can extend out of the bottom plate of the quantitative bin layer, the bottom plate is provided with an electric push rod and a buffer spring latch, the buffer spring latch can move transversely with the electric push rod, module two comprises:

[0007] A first position sensing sensor, used for sending a first signal to the control module when the chute is raised to the highest position;

[0008] The control module 1 is used to start the electric push rod when receiving the first signal, and control the buffer spring latch to insert or withdraw from the hanging hole of the safety hook through the electric push rod.

[0009] Furthermore, Module 2 also includes:

[0010] A second position sensing sensor, used for sending a second signal to the control module when the buffer spring latch extends to a set position;

[0011] A third position sensing sensor, used for sending a third signal to the control module when the buffer spring latch is retracted to a set position;

[0012] The control module 2 is used for closing the electric push rod and sending a fourth signal to the signal light when receiving the second signal, and closing the electric push rod and sending a fifth signal to the signal light when receiving the third signal;

[0013] The signal light is used to emit a green light signal when the fourth signal is received, and emit a red light signal when the fifth signal is received.

[0014] The beneficial effects of the utility model are as follows: the utility model can realize the automatic insertion and withdrawal of the buffer spring latch into the safety hook and can accurately detect the position of the chute, thereby solving the hidden danger that the locomotive may scratch the locomotive due to the light self-discharge of the chute. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the safety protection device in the embodiment of the utility model when a locomotive passes by;

[0016] Figure 2 It is a schematic diagram of the structure of the application state of the safety protection device of the embodiment of the utility model during the loading operation of a train carriage;

[0017] Figure 3 It is a front structural schematic diagram of the buffer spring latch in the safety protection device according to the embodiment of the utility model in the inserted state;

[0018] Figure 4 yes Figure 3 A top view of

[0019] Figure 5 A front structural diagram of the buffer spring latch in the safety protection device according to the embodiment of the utility model in a pulled-out state;

[0020] Figure 6 yes Figure 5 Top view of the .

[0021] As shown in the figure:

[0022] 1-safety hook; 2-chute; 3-quantitative storage layer; 4-bottom plate; 5-electric push rod; 6-buffer spring latch; 7-first position sensing sensor; 8-second position sensing sensor; 9-third position sensing sensor; 10-coal bunker; 11-train head; 12-train carriage. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] like Figure 1-6 As shown, according to an embodiment of the utility model, a safety protection device for preventing a loading chute from scratching a locomotive comprises module one and module two. Module one comprises a safety hook 1 fixed on the chute, and the safety hook 1 can move longitudinally with the chute 2. When the chute 2 rises to the highest position, the hanging opening of the safety hook 1 can extend out of the bottom plate 4 of the quantitative bin layer 3. The bottom plate 4 is provided with an electric push rod 5 and a buffer spring latch 6. The buffer spring latch 6 can move laterally with the electric push rod 5. Module two comprises:

[0025] A first position sensing sensor 7, used for sending a first signal to the control module when the chute 2 is lifted to the highest position;

[0026] The control module 1 is used to start the electric push rod 5 when receiving the first signal, and control the buffer spring latch 6 to insert into or withdraw from the hanging hole of the safety hook 1 through the electric push rod 5.

[0027] In this embodiment, module two also includes:

[0028] A second position sensing sensor 8, used for sending a second signal to the control module when the buffer spring latch 6 extends to a set position;

[0029] A third position sensing sensor 9, used for sending a third signal to the control module when the buffer spring latch 6 is retracted to a set position;

[0030] The control module 2 is used for closing the electric push rod 5 and sending a fourth signal to the signal light when receiving the second signal, and closing the electric push rod 5 and sending a fifth signal to the signal light when receiving the third signal;

[0031] The signal light is used to emit a green light signal when the fourth signal is received, and emit a red light signal when the fifth signal is received.

[0032] In this embodiment, the control module adopts a PLC controller of model S7-300, and the position sensing sensor adopts a proximity switch of model Bi2-M12-AD4X or Bi2-M12-IP65 produced by manufacturer Turck.

[0033] In order to facilitate understanding of the above technical solution of the present invention, the above technical solution of the present invention is described in detail below through specific usage.

[0034] The control room operates the loading chute 2 to the highest position. After the chute 2 is in place, the first position sensing sensor 7 detects whether the loading chute 2 is in the high position. After it is determined to be in the high position, the first position sensing sensor 7 sends a first signal to the control module. The control module starts the electric push rod 5, and the electric push rod 5 pushes the buffer spring latch 6 through the safety hook 1. The second position sensing sensor 8 detects whether the buffer spring latch 6 is in place. If it is in place, the second position sensing sensor 8 sends a fourth signal to the control module. The control module receives the fourth signal and sends a fifth signal to the signal light. The signal light outputs green to notify the train that it can pass safely. During the loading operation, the control module controls the electric push rod 5 to retract, thereby driving the buffer spring latch 6 to retract to the loading position. The third position sensing sensor 9 detects whether the buffer spring latch 6 is retracted in place. If it is in place, the third position sensing sensor 9 sends a third signal to the control module. The control module receives the third signal and sends a fifth signal to the signal light. The signal light outputs red to remind the train that it cannot pass. The control room operates to lower the chute 2 to start the loading operation. During a period of train loading, if the loading chute 2 cannot reach the high position due to self-decompression, the signal light will not output green, thereby solving the hidden danger that the locomotive may scratch the locomotive due to the light self-decompression of the chute 2.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A safety protection device for preventing a loading chute from scratching a locomotive, characterized in that: The invention comprises a module 1 and a module 2, wherein the module 1 comprises a safety hook (1) fixed on the chute, the safety hook (1) can move longitudinally along with the chute (2), when the chute (2) rises to the highest position, the hanging opening of the safety hook (1) can extend out of the bottom plate (4) of the quantitative storage layer (3), the bottom plate (4) is provided with an electric push rod (5) and a buffer spring latch (6), the buffer spring latch (6) can move transversely along with the electric push rod (5), and the module 2 comprises: A first position sensing sensor (7) is used to send a first signal to the control module when the chute (2) is raised to the highest position; The control module 1 is used for starting the electric push rod (5) when receiving the first signal, and controlling the buffer spring latch (6) to insert into or withdraw from the hanging opening of the safety hook (1) through the electric push rod (5).

2. The safety protection device for preventing the loading chute from scratching the locomotive according to claim 1 is characterized in that: Module 2 also includes: A second position sensing sensor (8) is used to send a second signal to the control module when the buffer spring latch (6) extends to a set position; A third position sensing sensor (9), used for sending a third signal to the control module when the buffer spring latch (6) is retracted to a set position; The control module 2 is used for closing the electric push rod (5) and sending a fourth signal to the signal light when the second signal is received, and closing the electric push rod (5) and sending a fifth signal to the signal light when the third signal is received; The signal light is used to emit a green light signal when the fourth signal is received, and emit a red light signal when the fifth signal is received.

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