Anti-reversion device for overhead man-riding device

Abstract

An anti-reversion device for an overhead man-riding device comprises a hanging bracket, a riding wheel and a steel wire rope, the hanging bracket is fixed in a mine pit, the riding wheel is rotationally assembled on the hanging bracket and used for supporting and guiding the steel wire rope driving the overhead man-riding device to move, the steel wire rope is installed above the riding wheel, and rope clips linked with the steel wire rope are installed on the steel wire rope at intervals. A monitoring device for monitoring forward and reverse rotation of the riding wheel is installed on the hanging bracket, a blocking plate is installed on the hanging bracket and over the riding wheel, one end of the blocking plate is rotationally assembled on the hanging bracket through a rotating shaft, the other end of the blocking plate makes contact with the side, facing the advancing direction of the steel wire rope, of the riding wheel, and the rotating shaft is parallel to a rotating shaft of the riding wheel. A limiting groove larger than the steel wire rope and smaller than the rope clip is formed in the side, making contact with the riding wheel, of the blocking plate, an opening of the limiting groove faces downwards so that the blocking plate can form a U-shaped structure with the opening facing downwards, and the steel wire rope is arranged in the limiting groove.

Description

Technical Field

[0001] The utility model relates to an anti-reversal device for a monkey car. Background Art

[0002] Mining is a high-risk industry, and safe production is very important. Therefore, how to improve the safety of transporting personnel and tools in mine inclined shafts is a technical problem that needs to be solved urgently. As a mine overhead passenger ropeway, the monkey car has the advantages of low equipment investment, high transportation efficiency, on-demand and stable and reliable. The monkey car fixes the steel cable on the driving wheel, support wheel, rope pressure wheel and zigzag wheel, and tightens it through the tensioning device. The driving device provides power to drive the driving wheel and steel cable to operate, thereby realizing the function of transporting miners. There are also devices in the prior art that further improve the safety of monkey carts, such as patent number: 202322144508.6, patent name: Coal mine monkey cart anti-rope drop and anti-reverse protection device, which discloses that a fixed shaft (5) is fixedly connected to the rear of the monkey wheel group (2), and the outer rotation of the fixed shaft (5) is connected to a trailer (3), and the lower part of the trailer (3) is buckled with a friction block (4). When the monkey wheel group is running normally, the trailer drags the friction block to the rear side, and the friction block is placed on the wire rope. There is no additional pressure and the friction block does not work; when the monkey wheel group is reversed (non-normal During normal operation), when the monkey car goes in reverse, with the cooperation of the friction block and the trailer, the trailer presses down the friction block, so that the friction block and the wire rope are in close contact, and the friction force increases rapidly until the trailer and the friction block lock the monkey wheel assembly; although this material has a certain braking effect, but because the trailer and the wire rope are not in contact with the corresponding connecting parts, if the friction block and the wire rope are installed tightly, the resistance will increase during normal operation; if the friction block and the wire rope are loosely connected, when going in reverse, due to the sudden increase in resistance, the bracket may bounce under the action of the friction block, resulting in brake failure. Utility Model Content

[0003] The utility model solves the shortcomings of the prior art and provides a monkey car anti-reversal device which eliminates the potential safety hazard of monkey car reverse operation.

[0004] In order to achieve the above-mentioned purpose, the utility model first proposes a monkey car anti-reversal device, including a hanger, a supporting wheel and a wire rope, the hanger is fixed in the mine, the supporting wheel is rotatably assembled on the hanger, the supporting wheel is used to support and guide the wire rope that drives the monkey car to move, the wire rope is installed above the supporting wheel, and the wire rope is installed at intervals on the wire rope. A monitoring device for monitoring the forward and reverse rotation of the supporting wheel is installed on the hanger, and the monitoring device is connected to the driving device that drives the monkey car to move and the control center of the mine through a controller. When the monitoring device When the reverse of the supporting wheel is detected, the monitoring device controls the monkey car to stop and feeds back the alarm signal to the control center; a blocking plate is installed on the hanger just above the supporting wheel, one end of the blocking plate is rotated on the hanger through a rotating shaft, and the other end is in contact with the side of the supporting wheel facing the traveling direction of the wire rope, the rotating shaft is parallel to the rotating axis of the supporting wheel, and a limiting groove larger than the wire rope and smaller than the rope gripper is provided on the side of the blocking plate in contact with the supporting wheel, and the limiting groove opens downward so that the blocking plate forms a U-shaped structure with the opening facing downward, and the wire rope is arranged in the limiting groove.

[0005] In this embodiment, the monitoring device includes a Hall sensor installed on the hanger and a magnet installed on the supporting wheel and matching with the Hall sensor.

[0006] In this embodiment, the Hall sensor is a forward and reverse speed sensor, and the Hall sensor is connected to the controller through a signal line. The controller is connected to a driving device that drives the monkey car to move and a control center of the mine.

[0007] In this embodiment, the hanger is fixed to the I-beam crossbeam on the top of the mine pit by U-bolts.

[0008] In this embodiment, the U-shaped bolt is a bolt with a diameter of φ18 mm, and the U-shaped bolt is made of high-strength Q235 carbon structural steel.

[0009] In this embodiment, the rotating shaft adopts a stud bolt, one end of which passes through the hanger and is locked and fixed to the hanger by a second locking nut and a third locking nut, and a first locking nut is installed on the other end of the stud bolt. A shaft sleeve is fixed to the end of the blocking plate, and the blocking plate is sleeved on the outside of the stud bolt through the shaft sleeve and placed between the first locking nut and the second locking nut to achieve axial limitation of the blocking plate, and the blocking plate can swing around the stud bolt.

[0010] Due to the above structure, the device has the following advantages:

[0011] 1. On the one hand, this device can detect the forward and reverse rotation of the supporting wheel through the monitoring device, and control the monkey car to stop when the reverse rotation is detected, and send an alarm signal to the control center to prevent safety accidents. On the other hand, after the monkey car stops, when the wire rope is still running in the reverse direction, the blocking plate can further act to jam the rope grip to prevent the rope grip from passing through the supporting wheel in the reverse direction, so that the monkey car stops running in time; through double protection, the safety of the monkey car operation is greatly improved.

[0012] 2. The monitoring device uses a combination of Hall sensors and magnetic steel to achieve real-time monitoring and automatic control of the movement of the monkey car, improving operating efficiency and safety.

[0013] 3. The blocking plate cooperates with the supporting wheel to form a U-shaped structure with the opening facing downward. On the one hand, it can effectively guide the wire rope and prevent it from falling off. On the other hand, when the wire rope runs in the forward direction, the blocking plate rotates to allow the rope gripper to pass through, and when the wire rope runs in the reverse direction, it can prevent the rope gripper from passing through in time, thereby improving the safety of the monkey car operation.

[0014] To sum up, the device has a simple structure, low cost, easy assembly and disassembly, safety and reliability, is suitable for anti-reversal protection of monkey car equipment for transporting personnel in the mining field, and has the value of comprehensive promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the front side of the utility model.

[0016] Figure 2 for Figure 1 Enlarged view of point A.

[0017] Figure 3 It is a structural schematic diagram of the side of the utility model.

[0018] In the figure: 1. U-shaped bolt; 2. hanger; 3. stud bolt; 4. first locking nut; 5. second locking nut; 6. third locking nut; 7. blocking plate; 71. limit groove; 8. U-shaped groove; 9. rope gripper; 10. wire rope; 11. support wheel; 12. Hall sensor; 13. magnet. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0021] like Figures 1 to 3 As shown, a monkey car anti-reversal device comprises a hanger 2, a supporting wheel 11 and a wire rope 10. The hanger 2 is fixed in the mine pit, and the supporting wheel 11 is rotatably assembled on the hanger 2. The supporting wheel 11 is used to support and guide the wire rope 10 that drives the monkey car to move. The wire rope 10 is installed above the supporting wheel 11. The wire rope 10 is installed with a rope gripper 9 that is linked to the wire rope 10 at intervals. A monitoring device for monitoring the forward and reverse rotation of the supporting wheel 11 is installed on the hanger 2. The monitoring device is connected to the driving device that drives the monkey car to move and the control center of the mine through a controller. When the reverse rotation of the supporting wheel 11 is detected, the monitoring device The detection device controls the monkey car to stop and feeds back the alarm signal to the control center; a blocking plate 7 is also installed on the hanger 2, just above the supporting wheel 11, one end of the blocking plate 7 is rotated and transferred to the hanger 2 through a rotating shaft, and the other end is arranged on the side of the supporting wheel 11 facing the traveling direction of the wire rope, the rotating shaft is parallel to the rotating axis of the supporting wheel 11, and a limiting groove 71 larger than the wire rope 10 and smaller than the rope gripper 9 is provided on the side of the blocking plate 7 in contact with the supporting wheel 11, and the limiting groove 71 opens downward so that the blocking plate 7 forms a U-shaped structure with the opening facing downward, and the wire rope 10 is arranged in the limiting groove 71;

[0022] Furthermore, the monitoring device includes a Hall sensor 12 mounted on the hanger 2 and a magnetic steel 13 mounted on the supporting wheel 11 and matching the Hall sensor 12. The Hall sensor 12 is a forward and reverse speed sensor. The Hall sensor 12 is connected to the controller through a signal line. The magnetic steel 13 is a permanent magnetic steel.

[0023] When the monkey car is operating normally, the bottom of the blocking plate 7 is overlapped on the supporting wheel 11. When the wire rope 10 passes through the supporting wheel 11, the wire rope 10 moves in the limiting groove 71 of the blocking plate 7. The blocking plate 7 does not understand. When the cable gripper 9 on the wire rope 10 reaches the supporting wheel 11, since the cable gripper 9 is larger than the limiting groove 71, the cable gripper 9 will push the blocking plate 7 to rotate upward around the rotating shaft, so that the cable gripper 9 passes through the supporting wheel 11. After the cable gripper 9 passes, the blocking plate 7 returns to its original position under the action of gravity.

[0024] When the monkey car fails, when the wire rope 10 runs in the reverse direction, the supporting wheel 11 reverses and drives the magnet 13 to rotate. After the Hall sensor 12 senses the signal, it controls the drive device to cut off the power, the monkey car automatically stops, and the controller sends a voice alarm of "anti-reverse protection" to the control center. If the wire rope 10 still runs in the reverse direction after the monkey car stops, at this time, the blocking plate 7 starts to work, and the rope gripper 9 on the wire rope 10 follows the wire rope 10 to run in the reverse direction. Since the rope gripper 9 is larger than the limiting groove 71 of the blocking plate 7, the rope gripper 9 hits the blocking plate 7. At this time, the top of the blocking plate 7 is supported by the rotating shaft, and the bottom is blocked by the supporting wheel 11, and the wire rope is placed in the limiting groove 71, thereby jamming the rope gripper 9 to prevent the rope gripper 9 from passing through the supporting wheel 11 in the reverse direction, so that the monkey car stops running in time and plays a protective role.

[0025] In this embodiment, the hanger 2 is fixed to the I-beam crossbeam on the top of the mine pit by U-bolts 1. The U-bolts 1 are made of φ18mm, high-strength Q235 carbon structural steel.

[0026] The rotating shaft adopts a stud bolt 3, one end of which passes through the hanger 2 and is locked and fixed on the hanger 2 by a second locking nut 5 and a third locking nut 6. A first locking nut 4 is installed on the other end of the stud bolt 3. A shaft sleeve is fixed to the end of the blocking plate 7. The blocking plate 7 is sleeved on the outside of the stud bolt 3 through the shaft sleeve and is placed between the first locking nut 4 and the second locking nut 5. The blocking plate 7 can swing around the stud bolt 3. Furthermore, the stud bolt 3 is made of φ24mm, high-strength Q235 carbon structural steel and has a length of 200mm.

[0027] The blocking plate 7 is welded with a 10mm iron plate and a shaft sleeve with an inner diameter of 25mm and an outer diameter of 25mm. The blocking plate 7 is 200mm high, and a limit groove 71 is designed in the middle. The limit groove 71 is 30mm wide and 150mm high, so as to facilitate the passage of the wire rope 10 when it is running in the forward direction. According to the installation design requirements of the monkey car, the spacing between the supporting wheels is 8 meters / group. According to the maximum load of the monkey car, the design passenger spacing requirement is not less than 13 meters. The spacing of the rope gripper 9 is appropriately adjusted, such as 13 meters, 14 meters, 15 meters, etc. Ensure that when the equipment is shut down, the wire rope runs in the reverse direction, and there is a blocking plate to stop the rope gripper in the first time to stop the equipment from running.

[0028] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A monkey car anti-reversal device, comprising a hanger (2), a supporting wheel (11) and a steel wire rope (10), wherein the hanger (2) is fixed on the top of a mine pit, the supporting wheel (11) is rotatably mounted on the hanger (2), the supporting wheel (11) is used to support and guide the steel wire rope (10) for driving the monkey car to move, and the steel wire rope (10) is installed above the supporting wheel (11), characterized in that: A rope gripper (9) linked to the steel wire rope (10) is installed at intervals on the steel wire rope (10); a monitoring device for monitoring the forward and reverse rotation of the supporting wheel (11) is installed on the hanger (2); a blocking plate (7) is installed on the hanger (2) directly above the supporting wheel (11); one end of the blocking plate (7) is rotatably mounted on the hanger (2) through a rotating shaft, and the other end is in contact with the side of the supporting wheel (11) facing the traveling direction of the steel wire rope (10); the rotating shaft is parallel to the rotation axis of the supporting wheel (11); a limiting groove (71) larger than the steel wire rope (10) and smaller than the rope gripper (9) is provided on the side of the blocking plate (7) in contact with the supporting wheel (11); the limiting groove (71) opens downward so that the blocking plate (7) forms a U-shaped structure with its opening facing downward; the steel wire rope (10) is arranged in the limiting groove (71).

2. The anti-reversal device for a monkey car according to claim 1, characterized in that: The monitoring device comprises a Hall sensor (12) mounted on a hanger (2) and a magnetic steel (13) mounted on a supporting wheel (11) and matching with the Hall sensor (12).

3. The anti-reversal device for a monkey car according to claim 2, characterized in that: The Hall sensor (12) is a forward and reverse speed measuring sensor. The Hall sensor (12) is connected to a controller via a signal line. The controller is connected to a driving device for driving the monkey car to move and a control center of the mine.

4. The anti-reversal device for a monkey car according to claim 1, characterized in that: The hanger (2) is fixed to the I-beam crossbeam on the top of the mine pit by U-bolts (1).

5. The anti-reversal device for a monkey car according to claim 4, characterized in that: The U-shaped bolt (1) is a bolt with a diameter of φ18 mm and is made of high-strength Q235 carbon structural steel.

6. A monkey car anti-reversal device according to any one of claims 1 to 5, characterized in that: The rotating shaft adopts a stud bolt (3), one end of which passes through the hanger (2) and is locked and fixed on the hanger (2) by a second locking nut (5) and a third locking nut (6), the other end of the stud bolt (3) is installed with a first locking nut (4), the end of the blocking plate (7) is fixed with a shaft sleeve, the blocking plate (7) is sleeved on the outer side of the stud bolt (3) through the shaft sleeve, and is placed between the first locking nut (4) and the second locking nut (5), and the blocking plate (7) can swing around the stud bolt (3).

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