Rapid moving device for top sensor of belt conveyor

Abstract

A quick moving device for a top sensor of a belt conveyor belongs to the technical field of coal mine devices and can solve the problems of potential safety hazards, complicated operation and the like existing in picking and hanging of a monitoring instrument at the top of an underground coal mine roadway. Comprising a guide wheel located at a hanging point of a roadway roof sensor, a pulley block located at the apex angle of a roadway and a hand-cranking pulley located at the bottom of the roadway, a closed steel wire rope is arranged among the guide wheel, the pulley block and the hand-cranking pulley in a penetrating mode, and a plurality of hanging rings used for hanging sensor cables are arranged on the steel wire rope below the position between the guide wheel and the pulley block. When the cable is in a stretching state, the connecting length of the hanging ring is smaller than the length of the cable. According to the utility model, through cooperation of the pulleys, an operator can move the monitoring instrument to a place where operation is convenient only by standing on the side face of a roadway, and personnel injury caused by climbing operation is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine devices, and in particular relates to a fast moving device for a sensor on the top of a belt conveyor. Background Art

[0002] Belt conveyors in underground coal mines are equipped with numerous protective sensors, such as smoke and temperature sensors. Gas and CO sensors are also installed in underground mining tunnels. The Coal Mine Safety Regulations require daily testing of these sensors. Because these sensors are typically installed at the top of the tunnels, operators must ascend to perform each test and calibration.

[0003] For example, the smoke sensor at the head of a belt conveyor is mounted above the belt support. During daily testing, the head's location precludes the installation of a pedestrian overpass, so testing must be performed according to the following steps. First, stop the conveyor and lock the upper switch. Then, remove the sensor, restart the conveyor, and test again to see if the conveyor can shut down without stopping. After the test, lock the conveyor and upper switch, return the sensor to its original position, and the test is complete. Any error in any of these steps could result in injury. Four people are required to perform this task: one person monitors, one shuts off power, one climbs up to operate the conveyor, and one uses a ladder.

[0004] At the same time, removing and hanging monitoring instruments at the top of underground tunnels are all considered high-altitude operations. In actual applications, injuries are likely to occur due to various reasons. Utility Model Content

[0005] Aiming at the problems of potential safety hazards and complicated operation of existing monitoring instruments for hanging and removing at the top of underground coal mine tunnels, the utility model provides a rapid moving device for sensors on the top of a belt conveyor.

[0006] The utility model adopts the following technical solutions:

[0007] A rapid moving device for sensors on the top of a belt conveyor comprises a guide wheel located at the sensor suspension point on the tunnel roof, a pulley block located at the top corner of the tunnel, and a hand-cranked pulley located at the bottom of the tunnel. A closed steel wire rope is passed through the guide wheel, the pulley block, and the hand-cranked pulley. A plurality of hanging loops for hanging sensor cables are provided on the steel wire rope located below the guide wheel and the pulley block. When the cable is extended, the connecting length of the hanging loops is less than the length of the cable.

[0008] Furthermore, the pulley assembly includes a pulley frame and pulleys located at the upper and lower ends of the pulley frame.

[0009] Furthermore, the guide wheel and the pulley assembly are respectively connected to the top anchor rod located on the top plate of the tunnel, and the hand pulley is connected to the auxiliary anchor rod located at the bottom of the tunnel.

[0010] Furthermore, the cable is connected to the hanging ring through a cable tie.

[0011] Furthermore, two rope clamps are provided on the steel wire rope located below the guide wheel and the pulley block. The rope clamps are located on a side close to the guide wheel, and the sensor is located between the rope clamps.

[0012] Furthermore, the device also includes a hook for hanging the sensor, and the hook includes a detachable rod body, and a hook is provided at one end of the rod body.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model uses the cooperation of the pulleys, and the operator only needs to stand at the side of the tunnel to move the monitoring instrument to a location that is convenient for operation, and there will be no risk of injury to personnel due to height operations.

[0015] By using the utility model, the input of the staff is reduced and the work efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 Schematic diagram of the structure of the guide wheel;

[0018] Figure 3 It is a structural diagram of the pulley assembly;

[0019] Figure 4 It is a structural diagram of a hand-crank pulley;

[0020] Among them: 1-guide wheel; 2-pulley block; 3-hand pulley; 4-wire rope; 5-hanging ring; 6-pulley frame; 7-pulley; 8-top anchor rod; 9-side anchor rod; 10-sensor; 11-cable; 12-rope clamp; 13-belt rack. DETAILED DESCRIPTION

[0021] The present invention will be further described with reference to the accompanying drawings.

[0022] As shown in the figure, a rapid moving device for the sensor on the top of a belt conveyor includes a guide wheel 1 located at the sensor hanging point on the top plate of the tunnel, a pulley block 2 located at the top corner of the tunnel, and a hand-cranked pulley 3 located at the bottom of the tunnel. A closed steel wire rope 4 is passed through the guide wheel 1, the pulley block 2 and the hand-cranked pulley 3. A plurality of hanging loops 5 for hanging sensor cables are provided on the steel wire rope 4 located below between the guide wheel 1 and the pulley block 2. When the cable 11 is in an extended state, the connecting length of the hanging loops 5 is less than the length of the cable 11.

[0023] Furthermore, the pulley assembly 2 includes a pulley frame and pulleys 7 located at the upper and lower ends of the pulley frame 6.

[0024] Furthermore, the guide wheel 1 and the pulley block 2 are respectively connected to the top anchor rod 8 located on the top plate of the tunnel, and the hand pulley 3 is connected to the auxiliary anchor rod 9 located at the bottom of the tunnel.

[0025] Furthermore, the cable 11 is connected to the hanging ring 5 via a cable tie.

[0026] Furthermore, two rope clamps 12 are provided on the steel wire rope 4 located below between the guide wheel 1 and the pulley block 2 . The rope clamps 12 are located on a side close to the guide wheel 1 , and the sensor 10 is located between the rope clamps 12 .

[0027] Furthermore, the device also includes a hook for hanging the sensor, and the hook includes a rod body, and a hook is provided at one end of the rod body.

[0028] The device primarily consists of a fixed guide wheel installed at the mine roof sensor's suspension point, a pulley block 2 installed at the tunnel's roof, a hand-cranked pulley 3 installed on the tunnel's side, a wire rope 4, a hook 5, and a removable hook. The fixed guide wheel is mounted on a central anchor bolt in the tunnel's roof, pulley block 2 is mounted on a corner anchor bolt, and hand-cranked pulley 3 is mounted on a central anchor bolt at the bottom of the same roof. Wire rope 4 passes over guide wheel 1, through pulley block 2, around hand-cranked pulley 3, and back to pulley block 2. Two rope clamps connect the wire ropes, creating a closed loop. A hook is placed on the lower portion of the wire rope between pulley block 2 and guide wheel 1, depending on the cable length.

[0029] The method of using the utility model is as follows:

[0030] When the sensor needs to be hung: first assemble the detachable hook to the applicable length, then use the hook to hang the sensor between the two rope clips of the wire rope 4 below the pulley block 2 and the guide wheel 1; use a cable tie to fix the sensor cable 11 to the hanging ring 5 (and leave enough cable for when the sensor is removed from the wire rope); crank the hand pulley 4 to slowly move the sensor forward and stop at the guide wheel 1; use a "U"-shaped pin to fix the hand crank handle of the hand pulley 3; remove the hook and place it in the tool box.

[0031] When the sensor needs to be replaced: first assemble the detachable hook to the appropriate length and place it on the hand pulley 3; remove the handle fixing pin of the hand pulley 3, shake the hand pulley 3, and slowly shake the sensor to the pulley group 2; use the hook to remove the sensor and replace it. After replacement, follow the hanging steps.

[0032] The utility model uses a pulley block, a steel wire rope, and a hook to move the sensor to a standing height on the side of the tunnel for testing and replacement, thus preventing injury to the operator and damage to the monitoring instrument. This achieves the goal of simplicity, speed, and safety.

[0033] Before use: Taking the belt smoke protection test as an example, it requires 4 people, 7 steps, and about half an hour to complete the test sensor work.

[0034] After use: Taking the belt smoke protection test as an example, it only requires 2 people, 2 steps, and 5 minutes.

[0035] The benefits of this utility model are mainly reflected in the following aspects:

[0036] 1. Safety benefit: This device eliminates the need for personnel to perform height-based operations when replacing or testing monitoring instruments on the top of a tunnel (they only need to climb up once during the hanging process, when tying the belts), ensuring personnel safety and equipment integrity.

[0037] 2. Economic benefits: The system reduces the number of employees by two. Assuming the salary of each employee is RMB 100,000 per year, the annual savings can be 2×10 (million yuan) = RMB 200,000.

[0038] Assuming that 25 minutes of working time can be saved every day and there are 360 ​​days in a year, the working time that can be saved each year is: 25 (min) × 360 (days) = 9000 (minutes).

Claims

1. A fast moving device for a sensor on the top of a belt conveyor, characterized by: The invention comprises a guide wheel (1) located at a sensor suspension point on a tunnel roof, a pulley block (2) located at a top corner of the tunnel, and a hand-cranked pulley (3) located at the bottom of the tunnel. A closed steel wire rope (4) is passed through the guide wheel (1), the pulley block (2), and the hand-cranked pulley (3). A plurality of hanging loops (5) for hanging sensor cables are provided on the steel wire rope (4) located below the guide wheel (1) and the pulley block (2). When the cable (11) is in an extended state, the length of the connecting line of the hanging loops (5) is less than the length of the cable (11).

2. A belt conveyor top sensor rapid moving device according to claim 1, characterized in that: The pulley assembly (2) comprises a pulley frame and pulleys (7) located at the upper and lower ends of the pulley frame (6).

3. The rapid moving device for the top sensor of a belt conveyor according to claim 1, characterized in that: The guide wheel (1) and the pulley assembly (2) are respectively connected to the top anchor rod (8) located on the top plate of the tunnel, and the hand pulley (3) is connected to the side anchor rod (9) located at the bottom of the tunnel.

4. The rapid moving device for the top sensor of a belt conveyor according to claim 1, characterized in that: The cable (11) is connected to the hanging ring (5) via a cable tie.

5. The rapid moving device for the top sensor of a belt conveyor according to claim 1, characterized in that: Two rope clamps (12) are provided on the steel wire rope (4) located below between the guide wheel (1) and the pulley block (2). The rope clamps (12) are located on a side close to the guide wheel (1), and the sensor (10) is located between the rope clamps (12).

6. The rapid moving device for the top sensor of a belt conveyor according to claim 1, characterized in that: The device also includes a hook for hanging the sensor, and the hook includes a detachable rod body, one end of the rod body is provided with a hook.

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