CN221068053U - Safety device for overhead man-vehicle in coal mine - Google Patents
Safety device for overhead man-vehicle in coal mine Download PDFInfo
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- CN221068053U CN221068053U CN202323257427.3U CN202323257427U CN221068053U CN 221068053 U CN221068053 U CN 221068053U CN 202323257427 U CN202323257427 U CN 202323257427U CN 221068053 U CN221068053 U CN 221068053U
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- rope locking
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- wire rope
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- 239000003245 coal Substances 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 39
- 239000010959 steel Substances 0.000 claims abstract description 39
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of coal mine safety, and discloses a coal mine overhead man-vehicle safety protection device, which comprises a rope locking box, two rope locking wedge blocks, a pushing cylinder, a connecting rod, an encoder, a friction wheel and a PLC (programmable logic controller); the rope locking box and the pushing cylinder are fixedly arranged above the steel wire rope, wedge grooves for accommodating two rope locking wedges are formed in the rope locking box along the direction of the steel wire rope, the small ends of the two rope locking wedges are arranged in the wedge grooves, and the large ends of the two rope locking wedges are connected with a push rod of the pushing cylinder through a connecting rod; the steel wire rope passes through the rope locking box from the position between the two rope locking wedge blocks; the friction wheel is arranged beside the steel wire rope and used for rotating in the same direction under the friction of the steel wire rope, the encoder is arranged on the friction wheel and used for collecting reverse rotation signals of the friction wheel and then sending the reverse rotation signals to the PLC, and the output end of the PLC is connected with the pushing cylinder.
Description
Technical Field
The utility model belongs to the technical field of coal mine safety, and particularly relates to a coal mine overhead man-vehicle safety protection device.
Background
An overhead man-riding device (hereinafter referred to as overhead man-riding vehicle) for a coal mine is auxiliary transportation equipment under the coal mine, and mainly comprises an inclined shaft or a roadway for transporting personnel. The device mainly comprises a driving device, a rope supporting device, a passenger device, a roundabout wheel device, a tensioning device, a safety protection device, an electric control device and the like. The device has the characteristics of complete safety protection, safe and reliable operation, convenience in personnel up and down, no need of waiting for following, simplicity in operation, convenience in maintenance, low power consumption, high conveying efficiency, low one-time investment and the like, and is novel modern underground coal mine personnel conveying equipment.
However, various accidents can be caused if faults occur in the running process of the overhead man-vehicle, particularly when the gradient is large, if the output shaft of the speed reducer is broken, the speed reducer slides down in the inclined roadway in the reverse direction rapidly, and serious accidents are easily caused. Therefore, safety protection is needed for the overhead man-vehicle, and safety accidents caused by reverse sliding down are avoided.
Disclosure of utility model
The utility model overcomes the defects existing in the prior art, and solves the technical problems that: the safety protection device for the overhead man-vehicle in the coal mine is provided for realizing the safety protection when the overhead man-vehicle slides downwards in a reverse direction.
In order to solve the technical problems, the utility model adopts the following technical scheme: the safety protection device for the overhead man-vehicle in the coal mine comprises a rope locking box, two rope locking wedge blocks, a pushing cylinder, a connecting rod, an encoder, a friction wheel and a PLC;
The rope locking box and the pushing cylinder are fixedly arranged above the steel wire rope, wedge grooves for accommodating two rope locking wedges are formed in the rope locking box along the direction of the steel wire rope, the small ends of the two rope locking wedges are arranged in the wedge grooves, and the large ends of the two rope locking wedges are connected with a push rod of the pushing cylinder through a connecting rod; the steel wire rope passes through the rope locking box from the position between the two rope locking wedge blocks;
The friction wheel is arranged beside the steel wire rope and used for rotating in the same direction under the friction of the steel wire rope, the encoder is arranged on the friction wheel and used for collecting reverse rotation signals of the friction wheel and then sending the reverse rotation signals to the PLC, and the output end of the PLC is connected with the pushing cylinder.
The safety protection device for the overhead man car of the coal mine further comprises a reset spring, wherein the reset spring is arranged between the small ends of the two rope locking wedge blocks and used for resetting the two rope locking wedge blocks along the direction perpendicular to the steel wire rope.
The safety protection device for the coal mine overhead man-car further comprises a return spring and a suspender, wherein the suspender is fixed above the steel wire rope and used for setting the return spring, one end of the return spring is fixedly connected with the suspender, the other end of the return spring is fixedly connected with the connecting rod and used for enabling the rope locking wedge block to return to a direction far away from the rope locking box along the direction of the steel wire rope.
The connecting rod comprises a connecting plate and two connecting arms, one end of each connecting arm is fixedly connected with the connecting plate, and the other end of each connecting arm is inserted into the mounting hole of one of the rope locking wedge blocks.
The rope locking box and the pushing cylinder are fixedly arranged on a fixed frame above the overhead man car.
The safety protection device for the coal mine overhead man-vehicle further comprises a power supply module, a relay J1, a relay J2 and a relay J3, wherein the signal output end of the encoder 7 is connected with the input end of the PLC, the output public terminal 1L of the PLC is connected with the negative electrode of the power supply module, and the output terminal 0.1 is connected with the positive electrode of the power supply module through the relay J1; the normally open contact J1-1 of the relay J1 is connected with the positive electrode and the negative electrode of the power supply after being connected with the alarm lamp L1 in series, the normally open contact J1-2 is connected with the positive electrode and the negative electrode of the power supply after being connected with the relay J2 in series, and the normally open contact J1-3 is connected with the positive electrode and the negative electrode of the power supply after being connected with the relay J3 in series; the relay J2 is used for starting the pushing cylinder, and the relay J3 is used for cutting off the power supply of the overhead man-vehicle.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model provides a safety protection device for an overhead man-car in a coal mine, which forms a rope locking structure through a rope locking box and two rope locking wedge blocks, acquires a reverse running signal of the overhead man-car by utilizing an encoder, further controls the action of the rope locking structure, can lock a steel wire rope when the overhead man-car suddenly moves reversely, and can avoid the reverse sliding accident of the overhead man-car when the overhead man-car is arranged at the horizontal position of the top of a sliding section of the steel wire rope, thereby greatly improving the running safety of the overhead man-car.
Drawings
FIG. 1 is a top view of a safety device for an overhead man car in a coal mine, provided by an embodiment of the utility model;
Fig. 2 is a front view of a safety device for an overhead man-vehicle in a coal mine provided by an embodiment of the utility model;
FIG. 3 is a schematic circuit diagram of an embodiment of the present utility model;
in the figure: 1 is a rope locking box, 2 is a rope locking wedge block, 3 is a pushing cylinder, 4 is a connecting rod, 5 is a steel wire rope, 6 is a wedge groove, 7 is an encoder, 8 is a friction wheel, 9 is a return spring, 10 is a return spring, 11 is a suspender, 12 is a fixed frame, 41 is a connecting plate, and 42 is a connecting arm.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-3, the embodiment of the utility model provides a safety protection device for a coal mine overhead man-vehicle, which comprises a rope locking box 1, two rope locking wedge blocks 2, a pushing cylinder 3, a connecting rod 4, an encoder 7, a friction wheel 8 and a PLC; the rope locking box 1 and the pushing cylinder 3 are fixedly arranged above the steel wire rope 5, wedge grooves 6 for accommodating the two rope locking wedge blocks 2 are formed in the rope locking box 1 along the direction of the steel wire rope, the small ends of the two rope locking wedge blocks 2 are arranged in the wedge grooves 6, and the large ends are connected with push rods of the pushing cylinder 3 through connecting rods 4; a wire rope 5 is passed through the lock rope box 1 from between two of the lock rope wedges 2.
Specifically, in this embodiment, the friction wheel 8 is disposed beside the steel wire rope 5 and is configured to rotate in the same direction under friction of the steel wire rope, and the encoder 7 is disposed on the friction wheel 8 and is configured to collect a reverse rotation signal of the friction wheel 8 and send the reverse rotation signal to the PLC controller, where an output end of the PLC controller is connected with the pushing cylinder 3.
Specifically, in this embodiment, the safety device for an overhead man-vehicle for a coal mine further includes a return spring 9, where the return spring 9 is disposed between the small ends of the two rope locking wedges 2, and is configured to return the two rope locking wedges 2 along a direction perpendicular to the steel wire rope.
Further, the safety protection device for the coal mine overhead man car further comprises a return spring 11 and a hanging rod 10, wherein the hanging rod 10 is fixed above the steel wire rope 5 and used for setting the return spring 11, one end of the return spring 11 is fixedly connected with the hanging rod 10, the other end of the return spring is fixedly connected with the connecting rod 4 and used for enabling the rope locking wedge block 2 to return along the direction away from the rope locking box 1 along the direction of the steel wire rope.
Specifically, as shown in fig. 1, the connecting rod 4 includes a connecting plate 41 and two connecting arms 42, one end of each connecting arm 42 is fixedly connected with the connecting plate 41, and the other end of each connecting arm is inserted into the mounting hole of one of the rope locking wedges 2.
Specifically, as shown in fig. 2, the lock rope box 1 and the pushing cylinder 3 are fixedly arranged on a fixed frame 12 above the overhead man car (i.e. above the wire rope). Specifically, the lock cord box 1 is fixed to the fixed frame 12 by six bolts.
Specifically, as shown in fig. 3, the safety protection device for the overhead man-vehicle in the coal mine further comprises a power module, a relay J1, a relay J2 and a relay J3, wherein the signal output end of the encoder 7 is connected with the input end of the PLC controller, the output common terminal 1L of the PLC controller is connected with the negative electrode of the power module, and the output terminal 0.1 is connected with the positive electrode of the power module through the relay J1; the normally open contact J1-1 of the relay J1 is connected with the positive electrode and the negative electrode of the power supply after being connected with the alarm lamp L1 in series, the normally open contact J1-2 is connected with the positive electrode and the negative electrode of the power supply after being connected with the relay J2 in series, and the normally open contact J1-3 is connected with the positive electrode and the negative electrode of the power supply after being connected with the relay J3 in series; the relay J2 is used for starting the pushing cylinder 3, and the relay J3 is used for cutting off the power supply of the overhead man-vehicle.
Specifically, the coal mine overhead man-car safety protection device of this embodiment installs the horizontal position before overhead man-car gliding section, can lock wire rope before wire rope gliding, prevents unexpected emergence, and in addition, the device specifically can be two, sets up respectively on one of two wire ropes between aircraft nose and tail, carries out two-way protection to overhead man-car.
The working principle of the utility model is as follows: when the overhead man-car normally runs, the steel wire rope 5 moves forwards by the rotating wheels at the machine head and the machine tail and drives the overhead man-car to move, the friction wheel 8 rotates in the same direction under the friction of the steel wire rope 5, at the moment, the encoder collects forward movement signals, the PLC controller does not act, when faults occur so that the steel wire rope 5 moves reversely, the friction wheel also rotates reversely under the friction of the steel wire rope 5, at the moment, the encoder collects reverse movement signals, the PLC controller acts so that the relay J1 is powered on, at the moment, the contact J1-1 is turned on, the warning lamp L1 is on, the faults are prompted, meanwhile, the contact J1-3 is turned on, and the relay J3 controls the running power supply of the overhead man-car to be cut off; the contact J1-2 is connected, the relay J2 controls the pushing cylinder 3 to act, the push rod of the relay J2 stretches out to push the connecting rod 4 to move towards the direction close to the rope locking box 1, then the connecting rod 4 pushes the two rope locking wedge blocks 2 to move towards the rope locking box 1, the wedge grooves 6 in the rope locking box 1 enable the two rope locking wedge blocks 2 to move towards the direction close to the steel wire rope 5, the steel wire rope is tightly fixed in the rope locking box 1, the steel wire rope cannot slide reversely, and further subsequent safety accidents can occur. When the fault investigation is completed and the normal state is restored, the air cylinder 3 is pushed to reset, the return spring 11 enables the connecting rod 4 to drive the two rope locking wedge blocks 2 to move in the direction away from the wedge groove 6, and meanwhile, the compressed return spring 9 resets, so that the two rope locking wedge blocks 2 move in the direction away from the steel wire rope 5, and the clamping stagnation effect on the steel wire rope 5 is avoided.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. The safety protection device for the overhead man-vehicle of the coal mine is characterized by comprising a rope locking box (1), two rope locking wedge blocks (2), a pushing cylinder (3), a connecting rod (4), an encoder (7), a friction wheel (8) and a PLC;
The rope locking box (1) and the pushing cylinder (3) are fixedly arranged above the steel wire rope (5), wedge grooves (6) for accommodating the two rope locking wedges (2) are formed in the rope locking box (1) along the direction of the steel wire rope, the small ends of the two rope locking wedges (2) are arranged in the wedge grooves (6), and the large ends are connected with push rods of the pushing cylinder (3) through connecting rods (4); a steel wire rope (5) passes through the rope locking box (1) from the position between the two rope locking wedge blocks (2);
The friction wheel (8) is arranged beside the steel wire rope (5) and used for rotating in the same direction under the friction of the steel wire rope, the encoder (7) is arranged on the friction wheel (8) and used for collecting reverse rotation signals of the friction wheel (8) and then sending the reverse rotation signals to the PLC, and the output end of the PLC is connected with the pushing cylinder (3).
2. A coal mine overhead man car safety arrangement according to claim 1, further comprising a return spring (9), said return spring (9) being arranged between the small ends of two of said rope locking wedges (2) for resetting both of said rope locking wedges (2) in a direction perpendicular to the wire rope.
3. The coal mine overhead man car safety protection device according to claim 1, further comprising a return spring (11) and a hanging rod (10), wherein the hanging rod (10) is fixed above the steel wire rope (5) and used for setting the return spring (11), one end of the return spring (11) is fixedly connected with the hanging rod (10), and the other end of the return spring is fixedly connected with the connecting rod (4) and used for enabling the rope locking wedge block (2) to return to a direction away from the rope locking box (1) along the direction of the steel wire rope.
4. The coal mine overhead man car safety protection device according to claim 1, wherein the connecting rod (4) comprises a connecting plate (41) and two connecting arms (42), one end of each connecting arm (42) is fixedly connected with the connecting plate (41), and the other end of each connecting arm is inserted into a mounting hole of one of the rope locking wedge blocks (2).
5. The coal mine overhead man-car safety protection device according to claim 1 is characterized in that the rope locking box (1) and the pushing cylinder (3) are fixedly arranged on a fixed frame (12) above the overhead man car.
6. The coal mine overhead man-vehicle safety protection device according to claim 1, further comprising a power module, a relay J1, a relay J2 and a relay J3, wherein a signal output end of the encoder (7) is connected with an input end of the PLC, an output common terminal 1L of the PLC is connected with a negative electrode of the power module, and an output terminal 0.1 is connected with a positive electrode of the power module through the relay J1; the normally open contact J1-1 of the relay J1 is connected with the positive electrode and the negative electrode of the power supply after being connected with the alarm lamp L1 in series, the normally open contact J1-2 is connected with the positive electrode and the negative electrode of the power supply after being connected with the relay J2 in series, and the normally open contact J1-3 is connected with the positive electrode and the negative electrode of the power supply after being connected with the relay J3 in series; the relay J2 is used for starting the pushing cylinder (3), and the relay J3 is used for cutting off the power supply of the overhead man-vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323257427.3U CN221068053U (en) | 2023-11-30 | 2023-11-30 | Safety device for overhead man-vehicle in coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323257427.3U CN221068053U (en) | 2023-11-30 | 2023-11-30 | Safety device for overhead man-vehicle in coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221068053U true CN221068053U (en) | 2024-06-04 |
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ID=91249192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323257427.3U Active CN221068053U (en) | 2023-11-30 | 2023-11-30 | Safety device for overhead man-vehicle in coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221068053U (en) |
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2023
- 2023-11-30 CN CN202323257427.3U patent/CN221068053U/en active Active
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