An emergency stop control system for a mining diesel engine monorail crane

Abstract

The present invention discloses an emergency stop control system for a diesel monorail crane used in mining. The control system comprises a diesel monorail crane, an emergency stop button mounted on the crane, an emergency stop signal acquisition and processing module, and an emergency stop execution module. The present invention has the beneficial effects of adapting to the harsh and variable underground environment and enabling hierarchical control based on priority levels according to the characteristics of the diesel monorail crane, thereby reducing the impact of emergency stops on the crane and the track.

Description

Technical Field

[0001] The present invention relates to a locomotive emergency stop control system, in particular to an emergency stop control system for a mining diesel engine monorail crane locomotive, and belongs to the technical field of underground rail-type auxiliary transportation equipment in coal mines. Background Art

[0002] Diesel monorail cranes are well-suited to the environmental characteristics of underground coal mines and are widely used to transport equipment, materials, auxiliary equipment, and personnel. Due to their multi-wheel, weight-distributed design, they are relatively long. The underground coal mine environment is highly variable, characterized by low light levels, high noise levels, and high humidity and dust levels. This makes it difficult for drivers to accurately assess the environment, and the harsh environment compromises the reliability of emergency stop systems, preventing timely and reliable triggering and execution of power outages. Summary of the Invention

[0003] The purpose of the present invention is to provide an emergency stop control system for a mining diesel engine monorail crane locomotive in order to solve the problems of failure of the emergency stop control system and single control function in the mining diesel engine monorail crane locomotive.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions: an emergency stop control system for a mining diesel monorail crane locomotive, comprising a diesel monorail crane locomotive and an emergency stop button installed on the locomotive, an emergency stop signal acquisition and processing module, and an emergency stop execution module.

[0005] There are four emergency stop buttons, which are respectively installed on the two cabs of the diesel monorail crane, the miner's carriage and the lifting operating platform;

[0006] The emergency stop signal acquisition and processing module collects short circuit and open circuit information in the circuit and can handle potential hidden dangers such as oxidation of switch contacts that may affect the failure of the emergency stop control system;

[0007] The emergency stop execution module can control the emergency brake of the diesel monorail crane locomotive.

[0008] As a further solution of the present invention: the emergency stop button includes a push button switch and a braking resistor, wherein one braking resistor is connected in series with the push button switch, and the other is connected in parallel with the push button switch.

[0009] As a further solution of the present invention: the emergency stop signal acquisition and processing module includes a signal collector, a central processing unit CPU and an emergency stop processor, the output end of the signal collector is connected to the input end of the central processing unit CPU, and the output end of the central processing unit CPU is connected to the input end of the emergency stop processor.

[0010] As a further solution of the present invention: the signal collector is provided with four sets of emergency stop button acquisition interfaces, which are connected one-to-one with the emergency stop buttons. The status of the emergency stop buttons and the circuit connection status can be detected respectively, and the detection results are sent to the central processing unit CPU.

[0011] As a further solution of the present invention: the central processing unit CPU controls the emergency stop processor to perform an emergency stop action on the locomotive according to the detection results, wherein, when it is detected that the circuit is short-circuited, open-circuited, or the contact is oxidized, it is determined to be a low priority level; when it is detected that the emergency stop button in the cab is pressed, it is determined to be the highest priority level; when it is detected that the emergency stop button in the miner's carriage is pressed, it is determined to be the second highest priority level; when it is detected that the emergency stop button in the lifting console is pressed, it is determined to be a medium priority level.

[0012] As a further solution of the present invention: the emergency stop processor contains 4 groups of power-isolated switch output interfaces, which are combined separately for the execution and implementation of emergency stop instructions of different levels; among them, the highest priority instruction is executed as 4 groups of outputs are disconnected at the same time; the second highest priority instruction is executed as 3 groups of outputs are disconnected, and then the 4th group of outputs is disconnected after 2S; the medium priority instruction is executed as 1st and 2nd groups of outputs are disconnected, and then the 3rd and 4th groups of outputs are disconnected after 2S; the low priority instruction is executed as 1st group of outputs is disconnected, and then the 2nd, 3rd and 4th groups of outputs are disconnected after 2S.

[0013] The beneficial effects of the present invention are as follows: the emergency stop control system of the mining diesel monorail crane locomotive is reasonably designed, can adapt to the changeable and harsh environment underground, and can be controlled according to the priority level according to the characteristics of the diesel monorail crane locomotive itself, thereby reducing the impact of the emergency stop on the locomotive and the impact on the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the system structure of the present invention;

[0015] Figure 2 This is a wiring diagram of the emergency stop button of the present invention;

[0016] Figure 3 This is a structural diagram of the emergency stop signal acquisition and processing module of the present invention. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figures 1-3, a mining diesel monorail crane locomotive emergency stop control system, including a diesel monorail crane locomotive and an emergency stop button installed on the locomotive, an emergency stop signal acquisition and processing module, and an emergency stop execution module:

[0019] There are four emergency stop buttons, which are respectively installed on the two cabs of the diesel monorail crane, the miner's carriage and the lifting operating platform;

[0020] The emergency stop signal acquisition and processing module collects short circuit and open circuit information in the circuit and can handle potential hidden dangers such as oxidation of switch contacts that may affect the failure of the emergency stop control system;

[0021] The emergency stop execution module can control the emergency brake of the diesel monorail crane locomotive.

[0022] Furthermore, in an embodiment of the present invention, the emergency stop button includes a button switch and a braking resistor, one of the braking resistors is connected in series with the button switch, and the other is connected in parallel with the button switch, and the matching resistors are used to detect circuit short circuits, circuit breaks, and contact oxidation hazards.

[0023] Furthermore, in an embodiment of the present invention, the emergency stop signal acquisition and processing module includes a signal collector, a central processing unit CPU (C8051F040 of SILICON) and an emergency stop processor, the output end of the signal collector is connected to the input end of the central processing unit CPU, and the output end of the central processing unit CPU is connected to the input end of the emergency stop processor.

[0024] Furthermore, in an embodiment of the present invention, the signal collector is provided with four sets of emergency stop button acquisition interfaces, which are connected one-to-one with the emergency stop buttons. The status of the emergency stop buttons and the circuit connection status can be detected respectively, and the detection results can be sent to the central processing unit CPU.

[0025] Furthermore, in an embodiment of the present invention, the central processing unit CPU controls the emergency stop processor to perform an emergency stop action on the locomotive based on the detection results, wherein, when it is detected that the circuit is short-circuited, open-circuited, or the contact is oxidized, it is determined to be a low priority level; when it is detected that the emergency stop button in the cab is pressed, it is determined to be the highest priority level; when it is detected that the emergency stop button in the miner's carriage is pressed, it is determined to be the second highest priority level; when it is detected that the emergency stop button on the lifting console is pressed, it is determined to be a medium priority level.

[0026] Furthermore, in an embodiment of the present invention, the emergency stop processor contains 4 groups of power-isolated switch output interfaces (composed of an optocoupler HCNW4503 and a voltage output driver VN820SP), which are combined for the execution and implementation of different levels of emergency stop instructions; among them, the highest priority instruction is executed as 4 groups of outputs are disconnected at the same time; the second highest priority instruction is executed as 3 groups of outputs are disconnected, and then the 4th group of outputs is disconnected after 2S; the medium priority instruction is executed as 1st and 2nd groups of outputs are disconnected, and then the 3rd and 4th groups of outputs are disconnected after 2S; the low priority instruction is executed as 1st group of outputs is disconnected, and then the 2nd, 3rd and 4th groups of outputs are disconnected after 2S.

[0027] Working principle: When using the emergency stop control system for mining diesel monorail crane locomotive, it can be controlled according to the priority level based on the characteristics of the diesel monorail crane locomotive itself, reducing the impact of emergency stop on the locomotive and the impact on the track.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0029] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A mining diesel monorail crane emergency stop control system, comprising a diesel monorail crane and an emergency stop button mounted on the crane, an emergency stop signal acquisition and processing module, and an emergency stop execution module, characterized in that: There are four emergency stop buttons, which are respectively installed on the two cabs of the diesel monorail crane, the miner's carriage and the lifting operating platform; The emergency stop signal acquisition and processing module collects short circuit and open circuit information in the circuit and can handle potential hidden dangers of switch contact oxidation that may affect the failure of the emergency stop control system; The emergency stop execution module can control the emergency brake of the diesel engine monorail crane locomotive; The emergency stop button includes a push button switch and a brake resistor, wherein one brake resistor is connected in series with the push button switch, and the other is connected in parallel with the push button switch. The matching resistors are used to detect hidden dangers of circuit short circuit, circuit break, and contact oxidation; The emergency stop signal acquisition and processing module includes a signal collector, a central processing unit (CPU), and an emergency stop processor; the output end of the signal collector is connected to the input end of the central processing unit (CPU), and the output end of the central processing unit (CPU) is connected to the input end of the emergency stop processor; The emergency stop processor contains four groups of power-isolated switch output interfaces, which are combined separately for the execution and implementation of emergency stop instructions of different levels; among them, the highest priority instruction is executed as four groups of outputs are disconnected at the same time; the second highest priority instruction is executed as three groups of outputs are disconnected, and then the fourth group of outputs is disconnected after 2S; the medium priority instruction is executed as the first and second groups of outputs are disconnected, and then the third and fourth groups of outputs are disconnected after 2S; the low priority instruction is executed as the first group of outputs is disconnected, and then the second, third and fourth groups of outputs are disconnected after 2S.

2. The mining diesel engine monorail crane emergency stop control system according to claim 1, characterized in that: The signal collector is provided with four groups of emergency stop button acquisition interfaces, which are connected one-to-one with the emergency stop buttons. The status of the emergency stop buttons and the circuit connection status can be detected respectively, and the detection results are sent to the central processing unit CPU.

3. The mining diesel engine monorail crane emergency stop control system according to claim 1, characterized in that: The central processing unit CPU controls the emergency stop processor to perform an emergency stop action on the locomotive according to the detection results. When a circuit short circuit, open circuit, or contact oxidation fault is detected, it is determined to be a low priority level; when it is detected that the emergency stop button in the cab is pressed, it is determined to be the highest priority level; when it is detected that the emergency stop button in the miner's carriage is pressed, it is determined to be the second highest priority level; when it is detected that the emergency stop button in the lifting console is pressed, it is determined to be a medium priority level.

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