Safety detection device for hoist derrick head sheave

Abstract

The utility model provides a hoist derrick head sheave safety detection device which comprises a detection end, a switch and a monitoring terminal, and the switch is respectively in communication connection with the monitoring terminal and the detection end. The detection end comprises a vibration sensing assembly, a temperature detection assembly and a speed detection assembly, the vibration sensing assembly and the temperature detection assembly are arranged on a bearing bush, the speed detection assembly is arranged on a head sheave, the derrick body is further provided with a visual monitoring mechanism, the visual monitoring mechanism is in communication connection with the switch, and the switch is in communication connection with the derrick body. The visual monitoring mechanism is used for collecting image information of the head sheave. The elevator head sheave state monitoring device can monitor the state of the elevator head sheave in all directions, improves the accuracy of detection data, and ensures safe and reliable operation of the elevator.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine hoist detection, and relates to a safety detection device for a hoist derrick sheave. Background Art

[0002] The sky sheave is a guide device for the wire rope in the mine hoist. It is installed on the derrick, supports the wire rope connecting the hoist drum and the hoist container, and guides the wire rope to turn. Therefore, the operation status of the sky sheave is crucial to the safety of the entire hoisting system. The mine hoist has a large and complex structure, a long operating time, and a large weight. It is easy to cause some failures in the sky sheave, which in turn endangers the production of coal mines and the lives of workers.

[0003] After long-term and frequent operation, the hoist sheave is prone to problems such as increased vibration, severe deflection, increased temperature and loud operating noise. If not discovered in time, it will cause major safety accidents. At present, the detection of the operating status of the sheave is mostly done by manual inspection to distinguish whether there is a fault in the vibration, deflection and noise of the sheave. However, manual inspections are all empirical judgments with large errors and cannot truly reflect the operating status of the sheave. In addition, inspections have a lag and cannot determine whether the sheave has a fault in time, nor can they accurately determine the type of fault that may exist in the hoist.

[0004] Therefore, how to achieve real-time monitoring of the overhead sheave, replace manual inspections, and promptly detect overhead sheave failures is of great significance to the safe operation of mine hoisting. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a hoist derrick sheave safety detection device that can monitor the hoist sheave status in all directions, improve the accuracy of detection data, and ensure the safe and reliable operation of the hoist.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a hoist derrick sheave safety detection device, comprising a derrick body, a sheave platform for fixing the sheave is arranged on the derrick body, a bearing is arranged on the sheave, bearing seats are arranged at both ends of the sheave, the hoist derrick sheave safety detection device also includes a detection end, a switch and a monitoring terminal, the switch is communicatively connected to the monitoring terminal and the detection end respectively; the detection end includes a vibration sensor component, a temperature detection component and a speed detection component, the vibration sensor component and the temperature detection component are arranged on the bearing, the speed detection component is arranged on the sheave, a visual monitoring mechanism is also arranged on the derrick body, the visual monitoring mechanism is communicatively connected to the switch, and the visual monitoring mechanism is used to collect image information of the sheave.

[0008] The utility model can comprehensively reflect the working status of the hoist sheave by detecting the vibration, temperature and speed of the sheave bushing and bearing and performing high-definition monitoring of the sheave status, effectively avoiding the occurrence of various hoist sheave failures, reducing manual labor intensity and maintenance costs, reducing the risk factors caused by personnel climbing, and ensuring the safe and reliable operation of the hoist.

[0009] As a preferred technical solution of the utility model, the detection end also includes a pressure detection component and a sound detection component arranged on the bearing seat of the sky wheel, the pressure detection component is used to detect the force condition of the bearing seat, and the sound detection component is used to detect the noise condition of the bearing seat.

[0010] As a preferred technical solution of the utility model, the detection end also includes a yaw monitoring mechanism arranged on the sheave platform, the yaw monitoring mechanism includes an axial displacement detection component and a radial displacement detection component, the axial displacement detection component is arranged on the side end surface of the sheave, for detecting the axial displacement of the sheave, and the radial displacement detection component is arranged in the rope groove of the sheave, for detecting the radial displacement of the sheave.

[0011] As a preferred technical solution of the present utility model, the vibration sensor component is a three-axis vibration sensor.

[0012] The utility model adopts a three-axis vibration sensor to monitor the vibration of the sheave bearing, which has high sensitivity and improves data accuracy. It is small in size and light in weight, easy to install, reduces wiring at the bearing, and is easy to protect or repair. It assists in the accurate analysis of the vibration waveform of the sheave and timely discovers potential faults.

[0013] As a preferred technical solution of the utility model, the monitoring terminal includes a main control machine, a display mechanism and an alarm mechanism, and the main control machine is electrically connected to the display mechanism and the alarm mechanism respectively.

[0014] The main control machine of the utility model is used for receiving and analyzing the data information transmitted by the switch, and controls the alarm mechanism to complete the over-limit alarm function by pre-setting the limit alarm values ​​of various detection data, and displays the data information and analysis results through the display mechanism. It also has the function of querying reports and historical curves, so that the staff can grasp the status of the sheave in real time and find faults in time for maintenance.

[0015] As a preferred technical solution of the utility model, the alarm mechanism is an indicator light alarm or a voice announcer.

[0016] As a preferred technical solution of the utility model, the main control machine includes an S7-300PLC controller (Programmable Logic Controller) or an S7-1500PLC controller.

[0017] As a preferred technical solution of the utility model, the hoist derrick sheave safety detection device also includes a hoist drive mechanism, and the hoist drive mechanism is communicatively connected to the main control machine, and the main control machine is used to control the hoist drive mechanism to perform a hoisting or locking function.

[0018] The hoist driving mechanism of the utility model is used to control the lifting and stopping of the hoist, and is connected to the main control machine for communication. The main control machine controls the hoist driving mechanism to complete the locking function when a sheave fault is found based on the analysis results of the data information of the detection end, so that the staff can maintain and repair the hoist sheave. After the repair is completed, the main control machine controls the hoist driving mechanism to drive the hoist to start lifting.

[0019] As a preferred technical solution of the utility model, the detection end is wirelessly connected to the switch via an analog transceiver mechanism, the analog transceiver mechanism includes a transmitting component and a receiving component, and the transmitting component is communicatively connected with the receiving component via a wireless network.

[0020] As a preferred technical solution of the utility model, the visual monitoring mechanism also includes a lighting component, and the lighting component is fixed on the overhead sheave platform.

[0021] The utility model adopts a lighting component to assist the image collection of the visual monitoring mechanism, so as to carry out all-round monitoring of the overhead wheel and obtain high-definition image information.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model provides a hoist derrick sheave safety detection device, which can comprehensively reflect the working status of the hoist sheave by detecting the vibration, temperature and sheave speed of the sheave bushing and bearing and performing high-definition monitoring of the sheave status, effectively avoiding the occurrence of various hoist sheave failures, reducing manual labor intensity and maintenance costs, reducing the risk factors caused by personnel climbing, and ensuring the safe and reliable operation of the hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a hoist derrick sheave safety detection device provided for a specific embodiment of the utility model;

[0025] Figure 2A schematic diagram of the connection between a detection terminal, a switch and a monitoring terminal provided in a specific implementation manner of the utility model.

[0026] Among them, 1-derrick body; 2-head sheave; 3-head sheave platform; 4-switch; 5-monitoring terminal; 51-main control machine; 52-display mechanism; 53-alarm mechanism; 6-detection end; 61-vibration sensor component; 62-temperature detection component; 63-speed detection component; 64-pressure detection component; 65-sound detection component; 66-axial displacement detection component; 67-radial displacement detection component; 7-visual monitoring mechanism; 71-lighting component; 8-hoist drive mechanism. DETAILED DESCRIPTION

[0027] It should be understood that, in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] It should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0030] In a specific embodiment, the utility model provides a safety detection device for the hoist derrick sheave 2, such as Figure 1 As shown, it includes a derrick body 1, on which a sheave platform 3 for fixing a sheave 2 is arranged, on which a bearing bush is arranged, and at both ends of the sheave 2 are arranged bearing seats; it also includes a detection terminal 6, a switch 4 and a monitoring terminal 5, and the switch 4 is respectively connected to the monitoring terminal 5 and the detection terminal 6 for communication. Figure 2As shown, the detection end 6 includes a vibration sensor component 61, a temperature detection component 62 and a speed detection component 63. The vibration sensor component 61 and the temperature detection component 62 are arranged on the bearing shell, and the speed detection component 63 is arranged on the sheave 2. A visual monitoring mechanism 7 is also arranged on the derrick body 1. The visual monitoring mechanism 7 is communicatively connected to the switch 4, and the visual monitoring mechanism 7 is used to collect image information of the sheave 2.

[0031] During the application process, the vibration sensor component 61 and the temperature detection component 62 of the detection end 6 collect the vibration information and temperature information of the bearing of the sheave 2, and the speed detection component 63 collects the speed information of the sheave 2, and uploads it to the main control computer 51 through the switch 4; at the same time, the visual monitoring mechanism 7 monitors the sheave 2 in all directions, and uploads the image information to the main control computer 51 through the switch 4. The main control computer 51 is used for data analysis and processing, fault warning and alarm to ensure the efficient operation of the elevator.

[0032] In some embodiments, the detection end 6 also includes a pressure detection component 64 and a sound detection component 65 arranged on the bearing seat of the sky wheel 2, wherein the pressure detection component 64 is used to detect the stress condition of the bearing seat, and the sound detection component 65 is used to detect the noise condition of the bearing seat. During the application process, the pressure detection component 64 of the detection end 6 detects the stress condition of the bearing seat of the sky wheel 2, and uploads it to the main control machine 51 through the switch 4. The main control machine 51 performs data analysis on the pressure information, and then obtains the stress condition of the sky wheel 2 to analyze whether the sky wheel 2 has an overload fault; the sound detection component 65 detects the noise condition of the bearing seat of the sky wheel 2, and uploads it to the main control machine 51 through the switch 4. The main control machine 51 performs data analysis on the noise data to determine whether the sky wheel 2 has a fault. The utility model can further confirm the operating state of the sky wheel 2 by detecting the working state of the bearing seat of the sky wheel 2, ensure the efficient, stable and reliable operation of the hoist, and ensure safe production.

[0033] In some embodiments, the detection end 6 further includes a yaw monitoring mechanism disposed on the sheave platform 3, the yaw monitoring mechanism including an axial displacement detection component 66 and a radial displacement detection component 67, the axial displacement detection component 66 being disposed on the side end surface of the sheave 2 for detecting the axial displacement of the sheave 2, and the radial displacement detection component 67 being disposed in the rope groove of the sheave 2 for detecting the radial displacement of the sheave 2. Specifically, the axial displacement detection component 66 and the radial displacement detection component 67 of the utility model are fixed on the sheave platform 3 through an angle-adjustable telescopic bracket to accurately detect the yaw data of the sheave 2, and upload the data to the main control computer 51 through the switch 4, and the main control computer 51 analyzes and processes the yaw data to ensure the safety of the operation of the sheave 2.

[0034] In some embodiments, the vibration sensing component 61 is a three-axis vibration sensor. The utility model uses a three-axis vibration sensor to monitor the vibration of the bearing of the sky wheel 2, which has high sensitivity, improves data accuracy, and is small in size, light in weight, easy to install, reduces wiring at the bearing, and is easy to protect or repair, and assists in the accurate analysis of the vibration waveform of the sky wheel 2, and timely discovers potential faults. Specifically, the vibration sensing component 61 can use a commercially available high-sensitivity SE-L01MA (GZD12) three-axis vibration sensor, which has high sensitivity, and realizes communication with the main control computer 51 through the communication protocol RS485 or Modbus RTU well known to those skilled in the art.

[0035] In some embodiments, Figure 2 As shown, the monitoring terminal 5 includes a main control machine 51, a display mechanism 52 and an alarm mechanism 53, and the main control machine 51 is electrically connected to the display mechanism 52 and the alarm mechanism 53. The main control machine 51 is used to receive and analyze the data information transmitted by the switch 4, and control the alarm mechanism 53 to complete the over-limit alarm function by presetting the limit alarm values ​​of various detection data, and display the data information and analysis results through the display mechanism 52. At the same time, it also has the function of querying reports and historical curves, so that the staff can grasp the status of the head wheel 2 in real time, and find faults in time for maintenance.

[0036] Specifically, the alarm mechanism 53 is an indicator light alarm or a voice announcer.

[0037] Specifically, the main control machine 51 includes an S7-300 PLC controller or an S7-1500 PLC controller.

[0038] In some embodiments, the hoist derrick sheave 2 safety detection device further includes a hoist drive mechanism 8, the hoist drive mechanism 8 is communicatively connected to the main control machine 51, and the main control machine 51 is used to control the hoist drive mechanism 8 to perform a hoisting or locking function. The hoist drive mechanism 8 is used to control the hoisting and stopping of the hoist, and is communicatively connected to the main control machine 51. The main control machine 51 controls the hoist drive mechanism 8 to complete the locking function when a sheave 2 failure is found based on the analysis result of the data information of the detection end 6, so that the staff can perform maintenance and repair on the hoist sheave 2. After the repair is completed, the hoist drive mechanism 8 is controlled by the main control machine 51 to drive the hoist to start lifting.

[0039] In some embodiments, the detection end 6 is wirelessly connected to the switch 4 via an analog transceiver mechanism, and the analog transceiver mechanism includes a transmitting component and a receiving component, and the transmitting component is communicatively connected with the receiving component via a wireless network. The utility model utilizes the wireless analog transmission and receiving function of the analog transceiver mechanism to process the analog parameter data transmitted by the detection end 6, completes the real-time transmission task to the switch 4, reduces the line from the sheave 2 to the lifting locomotive room, prevents line interference, realizes docking with the main control machine 51, and performs analog data processing and control.

[0040] In some embodiments, the visual monitoring mechanism 7 further includes a lighting assembly 71, and the lighting assembly 71 is fixed on the sky wheel platform 3. The utility model uses the lighting assembly 71 to assist the image acquisition of the visual monitoring mechanism 7 to perform all-round monitoring of the sky wheel 2 and obtain high-definition image information.

[0041] The utility model realizes intelligent monitoring and analysis of the vibration, runout, temperature, speed, equipment noise, etc. of the sheave 2 bearings and the shaft, and monitors the status of the sheave 2 through the high-definition visual monitoring mechanism 7, which can comprehensively reflect the working status of the hoist sheave 2, improve the accuracy of the detection data, reduce the failure rate of the hoist sheave 2, and thus greatly reduce the equipment maintenance costs, and at the same time reduce the indirect economic losses caused by the hoist shutdown due to the failure of the sheave 2, with obvious comprehensive benefits.

[0042] The applicant declares that the above is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. The technicians in the relevant technical field should understand that any changes or substitutions that can be easily thought of by the technicians in the relevant technical field within the technical scope disclosed in the present utility model fall within the protection scope and disclosure scope of the present utility model.

Claims

1. A hoist derrick sheave safety detection device, comprising a derrick body, a sheave platform for fixing the sheave is arranged on the derrick body, a bearing bush is arranged on the sheave, and bearing seats are arranged at both ends of the sheave, characterized in that: The hoist derrick sheave safety detection device also includes a detection end, a switch and a monitoring terminal, and the switch is communicatively connected to the monitoring terminal and the detection end respectively; the detection end includes a vibration sensor component, a temperature detection component and a speed detection component, and the vibration sensor component and the temperature detection component are arranged on the bearing, and the speed detection component is arranged on the sheave. A visual monitoring mechanism is also arranged on the derrick body, and the visual monitoring mechanism is communicatively connected to the switch, and the visual monitoring mechanism is used to collect image information of the sheave.

2. The hoist derrick sheave safety detection device according to claim 1, characterized in that: The detection end also includes a pressure detection component and a sound detection component arranged on the bearing seat of the sky wheel. The pressure detection component is used to detect the force condition of the bearing seat, and the sound detection component is used to detect the noise condition of the bearing seat.

3. The hoist derrick sheave safety detection device according to claim 1 or 2, characterized in that: The detection end also includes a yaw monitoring mechanism arranged on the sheave platform, and the yaw monitoring mechanism includes an axial displacement detection component and a radial displacement detection component. The axial displacement detection component is arranged on the side end surface of the sheave and is used to detect the axial displacement of the sheave. The radial displacement detection component is arranged in the rope groove of the sheave and is used to detect the radial displacement of the sheave.

4. The hoist derrick sheave safety detection device according to claim 1, characterized in that: The vibration sensing component is a three-axis vibration sensor.

5. The hoist derrick sheave safety detection device according to claim 1, characterized in that: The monitoring terminal includes a main control machine, a display mechanism and an alarm mechanism, and the main control machine is electrically connected to the display mechanism and the alarm mechanism respectively.

6. The hoist derrick sheave safety detection device according to claim 5, characterized in that: The alarm mechanism is an indicator light alarm or a voice announcer.

7. The hoist derrick sheave safety detection device according to claim 5, characterized in that: The main control machine includes an S7-300 PLC controller or an S7-1500 PLC controller.

8. The hoist derrick sheave safety detection device according to claim 6, characterized in that: The hoist derrick sheave safety detection device also includes a hoist drive mechanism, which is communicatively connected to the main control machine, and the main control machine is used to control the hoist drive mechanism to perform a hoisting or locking function.

9. The hoist derrick sheave safety detection device according to claim 1, characterized in that: The detection end is wirelessly connected to the switch via an analog transceiver mechanism, wherein the analog transceiver mechanism comprises a transmitting component and a receiving component, and the transmitting component is communicatively connected with the receiving component via a wireless network.

10. The hoist derrick head sheave safety detection device according to claim 1, characterized in that: The visual monitoring mechanism also includes a lighting assembly, and the lighting assembly is fixed on the sky wheel platform.

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