Mining winch alarm device

Abstract

The utility model relates to the technical field of mines, and discloses a mining winch alarm device which comprises a fixing frame and a servo motor, the inner side of the fixing frame is rotationally connected with a winding drum, a rotating shaft horizontally penetrates through the middle of the winding drum and is fixedly installed in the middle of the winding drum, and the shaft end of the servo motor is fixedly connected with one end of the rotating shaft. A detection groove is vertically formed in the side, away from the servo motor, of the fixing frame. The detection mechanism is used for detecting the rotating speed of the winding drum. Through the combination of the magnetic steel, the Hall sensor and the controller, the rotating speed of the rotating shaft can be detected, so that the speed of releasing a twisted rope by the winding drum is monitored, when the rotating speed of the winding drum is higher than a set value, stalling of a mine car is indicated, the controller further controls the ringing alarm to work and give an alarm, and meanwhile, the controller controls the electric-hydraulic push rod to work; the pawl can be pushed to move upwards to lock the ratchet wheel, so that the winding drum connected with the rotating shaft is controlled to stop rotating, the mine car stops moving, and the safety coefficient is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to mine technical field, concretely is mine winch alarm device. BACKGROUND

[0002] Winch is the mechanical equipment that the steel wire rope winding on the reel is used to pull load to move. It is mainly used for mine underground or ground to pull the vehicle, removes the prop of coal mining working face and other auxiliary transportation work.

[0003] The inventor finds that at least the following problems in the prior art have not been solved. When the driving mechanism of the winch fails or power failure, the reel loses driving force, and the rotation stall easily occurs. Although the existing winch also has an alarm mechanism, it cannot control the rotation of the reel in the first time, and there is a safety hazard.

[0004] Therefore, we propose a mine winch alarm device that can simultaneously alarm and control the reel to stop rotating when the reel stall is detected. UTILITY MODEL CONTENT

[0005] The utility model aims at providing mine winch alarm device, solves the problem proposed in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: mine winch alarm device, including fixed frame and servo motor, the inner side of fixed frame is rotatably connected with reel, the middle part of reel is fixedly installed with rotating shaft, the shaft end of servo motor is fixedly connected with one end of rotating shaft, the inside of fixed frame far away from servo motor side is vertically provided with detection groove;Detection mechanism: for detecting the rotating speed of reel, the detection mechanism includes hall sensor, the top end inner wall of detection is fixedly connected with hall sensor, the outer side of rotating shaft is fixedly connected with magnet steel, the side far away from servo motor of fixed frame is fixedly connected with ringer alarm;Brake mechanism: for controlling the reel to stop rotating, the brake mechanism includes ratchet wheel and pawl, one end of rotating shaft in the inside of detection groove is fixedly connected with the middle part of ratchet wheel, the pawl is movably connected with ratchet wheel, the bottom end inner wall of detection groove is fixedly connected with electro-hydraulic push rod, the telescopic end of electro-hydraulic push rod is fixedly connected with the bottom side of pawl.

[0007] As an optional scheme of the technical scheme of the application, the magnet steel is evenly distributed in the outer side of the rotating shaft in the form of a ring, and the magnet steel corresponds to the hall sensor.

[0008] As an optional scheme of the technical scheme of the application, the inner wall of one side of the detection groove is vertically provided with a sliding groove, one side of the pawl is fixedly connected with a sliding block, and the sliding block is slidably connected with the sliding groove.

[0009] As an optional solution of the technical scheme of the application, the servo motor is fixedly connected on one side of the fixed frame, and the end of the rotating shaft away from the servo motor is rotatably connected with the inner wall of the detection groove through a bearing.

[0010] As an optional solution of the technical scheme of the application, the pawl is arranged on the bottom side of the ratchet wheel, and the size of the pawl is matched with that of the ratchet wheel.

[0011] As an optional solution of the technical scheme of the application, the upper surface of the fixed frame is fixedly connected with a controller at one end, the data output end of the Hall sensor is connected with the data input end of the controller, and the signal output end of the controller is connected with the signal input end of the buzzer alarm and the electro-hydraulic push rod.

[0012] Compared with the prior art, the application has the following beneficial effects: through the combination of the magnetic steel, the Hall sensor and the controller, the rotating speed of the rotating shaft can be detected, so that the speed of the release of the rope from the winding drum can be monitored; when the rotating speed of the winding drum is higher than the set value, it indicates that the mine car is out of speed, the controller controls the buzzer alarm to work and alarm, at the same time, the controller controls the electro-hydraulic push rod to work, the pawl can be moved upward, the ratchet wheel can be locked, the rotating of the winding drum connected with the rotating shaft is stopped, the mine car is stopped, and the safety factor is high. BRIEF DESCRIPTION OF DRAWINGS

[0013] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0014] Fig. 1 It is a front view of the mine winch alarm device of the application;

[0015] Fig. 2 It is a side view of the ratchet wheel and the pawl of the mine winch alarm device of the application.

[0016] In the drawings: 1, fixed frame; 11, winding drum; 12, servo motor; 13, rotating shaft; 14, detection groove; 15, magnetic steel; 16, Hall sensor; 17, controller; 18, buzzer alarm; 2, ratchet wheel; 21, pawl; 22, electro-hydraulic push rod; 23, sliding groove; 24, sliding block. DETAILED DESCRIPTION

[0017] Please refer to Figs. 1-2The utility model provides a technical scheme: mine winch alarm device, including fixed frame 1 and servo motor 12, the inside of fixed frame 1 is rotatably connected with the drum 11, the middle part of drum 11 is fixedly installed and is penetrated with the rotating shaft 13, the axle end of servo motor 12 is fixedly connected with the one end of rotating shaft 13, servo motor 12 is fixedly connected in the one side of fixed frame 1, the inside of the one side of fixed frame 1 away from servo motor 12 is vertically provided with detection groove 14, and the one end of rotating shaft 13 away from servo motor 12 is rotatably connected with the inner wall of detection through bearing;Detection mechanism: for detecting the rotating speed of drum 11, and the detection mechanism includes hall sensor 16, and hall sensor 16 is fixedly connected in the top end inner wall of detection, and the outside of rotating shaft 13 is fixedly connected with magnet steel 15, and magnet steel 15 is evenly distributed in the outside of rotating shaft 13 in annular shape, and magnet steel 15 corresponds with hall sensor 16, and one end of the upper surface of fixed frame 1 is fixedly connected with controller 17, and the one side of fixed frame 1 away from servo motor 12 is fixedly connected with ringer alarm 18.

[0018] In this technical scheme, control servo motor 12 works, and the rotating shaft 13 can drive the drum 11 to rotate, realizes the release and winding operation of the rope, thereby controlling the rising and falling of the winch, in the rotating process of rotating shaft 13 driving drum 11, magnet steel 15 can be driven to rotate, when magnet steel 15 rotates to the upper end and aligns with hall sensor 16, hall sensor 16 can transmit data to controller 17, and further controller 17 can detect the rotating speed of rotating shaft 13, thereby monitoring the speed of the drum 11 releasing the rope, when the rotating speed of drum 11 is higher than the set value, it indicates that the mine car is stalled, and further controller 17 controls ringer alarm 18 to work and alarm.

[0019] In this embodiment, the brake mechanism: for controlling the stop of drum 11 rotation, the brake mechanism includes ratchet wheel 2 and pawl 21, the one end of rotating shaft 13 in the inside of detection groove 14 is penetrated through the middle part of ratchet wheel 2 and is fixedly connected with ratchet wheel 2, pawl 21 is arranged on the bottom side of ratchet wheel 2 and is movably connected with ratchet wheel 2, and the size of pawl 21 is matched with ratchet wheel 2, the bottom end inner wall of detection groove 14 is fixedly connected with electro-hydraulic push rod 22, and the extension end of electro-hydraulic push rod 22 is fixedly connected with the bottom side of pawl 21.

[0020] In this technical scheme, when the rotating speed of drum 11 is higher than the set value, controller 17 can automatically control electro-hydraulic push rod 22 to work, thereby pushing pawl 21 to move upwards, can lock ratchet wheel 2, and the drum 11 releasing the rope is stopped rotating through rotating shaft 13, so that the mine car stops moving, and the safety factor is high.

[0021] In this embodiment, the inner wall of the one side of detection groove 14 is vertically provided with sliding groove 23, and the one side of pawl 21 is fixedly connected with sliding block 24, and sliding block 24 is slidably connected with sliding groove 23.

[0022] In the technical scheme, the sliding block 24 outside the pawl 21 is in sliding connection with the sliding groove 23 of the inner wall of the detection groove 14, the pawl 21 can be limited, and the use stability of the pawl 21 is improved.

[0023] When the mine winch alarm device is used, the servo motor 12 is controlled to work, the winding drum 11 can be driven to rotate through the rotating shaft 13, the release and winding of the rope are realized, the ascending and descending of the winch are controlled, in the process that the rotating shaft 13 drives the winding drum 11 to rotate, the magnetic steel 15 can be driven to rotate, when the magnetic steel 15 rotates to the upper end and is aligned with the Hall sensor 16, the Hall sensor 16 can transmit data to the controller 17, the controller 17 can detect the rotating speed of the rotating shaft 13, the release speed of the winding drum 11 is monitored, when the rotating speed of the winding drum 11 is higher than the set value, the mine car loses speed, the controller 17 controls the buzzer alarm 18 to work and alarm, at the same time, the controller 17 can automatically control the electro-hydraulic push rod 22 to work, the pawl 21 can be moved upwards to lock the ratchet wheel 2, the winding drum 11 that controls the release of the rope through the rotating shaft 13 is stopped, the mine car is stopped, and the safety coefficient is high.

Claims

1. A mine winch alarm device, comprising a fixed frame (1) and a servo motor (12), the inner side of the fixed frame (1) is rotationally connected with a winding drum (11), the middle part of the winding drum (11) is horizontally penetrated and fixedly installed with a rotating shaft (13), and the shaft end of the servo motor (12) is fixedly connected with one end of the rotating shaft (13), characterized in that, The inside of the fixed frame (1) is vertically provided with a detection groove (14) away from the servo motor (12); The detection mechanism is used for detecting the rotating speed of the winding drum (11), the detection mechanism comprises a Hall sensor (16), the Hall sensor (16) is fixedly connected to the top end inner wall of the detection, the outer side of the rotating shaft (13) is fixedly connected with a magnetic steel (15), the fixed frame (1) is fixedly connected with a ringing alarm (18) away from the servo motor (12); The brake mechanism is used for controlling the winding drum (11) to stop rotating, the brake mechanism comprises a ratchet wheel (2) and a pawl (21), one end of the rotating shaft (13) inside the detection groove (14) penetrates the middle part of the ratchet wheel (2) and is fixedly connected with the ratchet wheel (2), the pawl (21) is movably connected with the ratchet wheel (2), the bottom end inner wall of the detection groove (14) is fixedly connected with an electro-hydraulic push rod (22), and the telescopic end of the electro-hydraulic push rod (22) is fixedly connected with the bottom side of the pawl (21).

2. A mine winch alarm device according to claim 1, characterised in that: The magnetic steel (15) is evenly distributed in the form of a ring on the outer side of the rotating shaft (13), and the magnetic steel (15) corresponds to the Hall sensor (16).

3. The mine winch alarm of claim 1, wherein: The inner wall of one side of the detection groove (14) is vertically provided with a sliding groove (23), one side of the pawl (21) is fixedly connected with a sliding block (24), and the sliding block (24) is slidably connected with the sliding groove (23).

4. The mine winch alarm apparatus of claim 1, wherein: The servo motor (12) is fixedly connected to one side of the fixed frame (1), and one end of the rotating shaft (13) away from the servo motor (12) is rotatably connected with the inner wall of the detection through a bearing.

5. The mine winch alarm apparatus of claim 1, wherein: The pawl (21) is arranged on the bottom side of the ratchet wheel (2), and the size of the pawl (21) is matched with the size of the ratchet wheel (2).

6. The mine winch alarm apparatus of claim 1, wherein: One end of the upper surface of the fixed frame (1) is fixedly connected with a controller (17), a data output end of the Hall sensor (16) is connected with a data input end of the controller (17), and a signal output end of the controller (17) is connected with a signal input end of the ringing alarm (18) and the electro-hydraulic push rod (22).

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