CN111927530B - Rescue withdrawing device for underground excavation and mining equipment and using method thereof - Google Patents
Rescue withdrawing device for underground excavation and mining equipment and using method thereof Download PDFInfo
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- CN111927530B CN111927530B CN202010564032.XA CN202010564032A CN111927530B CN 111927530 B CN111927530 B CN 111927530B CN 202010564032 A CN202010564032 A CN 202010564032A CN 111927530 B CN111927530 B CN 111927530B
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- oil cylinder
- traction
- supporting
- rescue
- equipment
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Abstract
The invention discloses a rescue withdrawing device of underground excavation and mining equipment and a using method thereof, belongs to the technical field of coal mine excavation and mining, and can solve the problems of low rescue efficiency of the existing underground excavation and mining working face of a coal mine, large secondary roof caving risk, high labor intensity of rescuers and large potential safety hazard. The rescue system can also be used for auxiliary driving equipment during large-gradient tunneling equipment pit digging, and the adaptability of the equipment is improved.
Description
Technical Field
The invention belongs to the technical field of coal mine excavation and mining, and particularly relates to a rescue withdrawing device of underground excavation and mining equipment and a using method thereof.
Background
The underground coal mine excavation and mining equipment is positioned at the foremost end of an underground exploitation roadway, and due to the fact that timely supporting cannot be achieved in the excavation and mining process, roof fall, rib spalling and the like easily occur in the area where the excavation and mining equipment is located, and accidents that the equipment is buried, pressed and clamped often occur. Particularly, when the continuous miner is in the corner coal mining, the continuous miner is in a pressure island area, the mine pressure is abnormal, and the roof fall accident is high. After the roof fall accident occurs, no professional rescue system equipment is provided, a large amount of personnel are needed for clearing waste rocks and rescuing near the roof fall area for rescuing equipment, the safety risk is high, the labor intensity is high, the support is not timely due to long clearing time, secondary or even repeated roof fall is extremely easy to occur in the roof fall area, and the rescue intensity is increased or even the rescue fails.
At present, after accidents of a top plate falling burying machine and a press machine occur on a coal mine underground excavation working surface, rescue is generally carried out by adopting the modes of manually cleaning waste rock, manually erecting a shed, advance supporting of steel pipes to build a rescue space and installing a prop pulling winch to pull withdrawing equipment. The method has the following problems in the application process:
1. after-disaster protection work such as waste rock cleaning, shed erecting and the like is carried out manually, the labor intensity is high, the efficiency is low, secondary falling is easy to cause, and in addition, the potential safety hazard is large when operating personnel are positioned at the edge of a falling area;
2. the installation of the prop pulling winch needs prefabricating a platform base and a pressing pole, and rescue operation cannot be carried out in time. The steel wire rope is very easy to break to cause personal injury in the traction process, and great potential safety hazards exist.
Disclosure of Invention
The invention provides a rescue withdrawing device of underground excavation and mining equipment and a using method thereof, aiming at the problems of low rescue efficiency of the existing underground excavation and mining working face of a coal mine, large secondary caving risk of a top plate, high labor intensity of rescuers and large potential safety hazard.
The invention adopts the following technical scheme:
the utility model provides an dig in pit and adopt equipment rescue withdrawing device, includes pull withdrawing device, two arm stock scraper and drag chain, pulls withdrawing device and is connected with rescued equipment through the drag chain, and two arm stock scraper is located one side of pulling withdrawing device, pulls withdrawing device and is connected with the hydraulic system of two arm stock scraper through the hydraulic hose.
The traction and retraction device comprises a base, a traction oil cylinder, a traction universal joint, a lifting oil cylinder, a supporting device, a supporting oil cylinder rod, a supporting oil cylinder and a controller, wherein one end of the traction oil cylinder is connected with a traction chain, the other end of the traction oil cylinder is connected with one end of the traction universal joint, the other end of the traction universal joint is connected with the base, the end surface of the base is provided with two cast steel spherical surface column sockets, one ends of the lifting oil cylinder and the supporting oil cylinder are respectively positioned in the cast steel spherical surface column sockets, the lifting oil cylinder is positioned below the supporting oil cylinder, a cylinder rod of the lifting oil cylinder is hinged with the lower part of the supporting oil cylinder, one end of the supporting oil cylinder rod is provided with a column socket and a pin hole, one end of the supporting device is positioned in the column socket of the cylinder rod and is connected through a bolt, and the controller controls the traction oil cylinder, the lifting oil cylinder and the supporting oil cylinder.
The two-arm anchor rod scraper comprises a supporting device, a temporary supporting roof, a temporary supporting system, a scraping inclined oil cylinder, a scraping lifting device and a scraping mechanism, wherein the temporary supporting roof and the temporary supporting system are located above the supporting device, the scraping lifting device and the scraping mechanism are located below the supporting device, the temporary supporting roof is connected with the temporary supporting system through a connecting rod, the temporary supporting roof is located at the top end of the temporary supporting system, the scraping mechanism is located at one end of the scraping lifting device, one end of the scraping inclined oil cylinder is connected with the scraping lifting device, and the other end of the scraping inclined oil cylinder is connected with a main frame of the two-arm anchor rod scraper.
A use method of a rescue withdrawing device of underground excavation and mining equipment comprises the following steps:
firstly, when excavating and mining working face equipment is buried, pressed or a nest machine is generated, a two-arm anchor rod scraper is used for quickly carrying rescue facilities of a traction and retraction device to a safe area of a working face;
secondly, overlapping the temporary support canopy with a temporary support system, cleaning the caving gangue at the tail of the embedded spare machine by using a two-arm anchor rod scraper, additionally installing anchor rods and anchor cables in a caving area for supporting, assisting in erecting a shed, establishing a rescue space, hanging a traction chain to a tail towing hook of the embedded spare machine by a rescue worker under the protection of the temporary support canopy, checking a power supply cable and a traveling system of equipment, and recovering the embedded spare traveling function;
thirdly, carrying the traction withdrawing device to a proper position, connecting a hydraulic rubber pipe of the traction withdrawing device to a hydraulic system of the two-arm anchor rod carrying scraper, operating a cylinder rod of the traction oil cylinder to extend out through a controller, connecting the end part of the cylinder rod with a traction chain, and operating a lifting oil cylinder and a supporting oil cylinder to enable the supporting oil cylinder to be completely connected with a roof and bear pressure;
fourthly, the rescuers are all withdrawn into a safe area, the operator operates the controller under the shield of the temporary support canopy to enable the traction oil cylinder to retract, and simultaneously operates the embedded running system to withdraw the machine until the cylinder rod of the traction oil cylinder retracts completely;
and fifthly, checking, timely cleaning and supporting the rescue space, checking the traction chain, adjusting the length of the traction chain, and entering the next traction withdrawal cycle until the equipment is completely withdrawn to a safe area to complete rescue.
The invention has the following beneficial effects:
compared with the prior art, the safe and efficient excavation equipment rescue withdrawing system is developed by combining the conditions that equipment needs to be timely and quickly rescued after roof caving occurs on the underground excavation working surface of a coal mine and secondary caving is easy to occur in a caving area and the like, and comprehensively considering the requirements of simplicity, easiness in use, maintenance-free performance and the like of rescue equipment.
1. The two-arm anchor rod scraper in the system can convey rescue facilities such as a traction withdrawing device to a digging and mining working surface, and the system is arranged in a rescue area in time for rescue;
2. the traction withdrawing device is simple in structure and free of maintenance, self-stabilization is carried out by adopting a hydraulic oil cylinder, additional fixation is not needed, rescue can be carried out quickly, the height of the supporting device can be adjusted to adapt to roadways with different height ranges, the adaptability is strong, and the rescue requirements of excavation and mining working faces with different roadway heights can be met;
3. the hydraulic oil cylinder is adopted for retraction traction, the rescue traction force is large, the traction retraction is stable, the safety and the reliability are realized, and the risk of secondary falling caused by the traction process is effectively reduced;
4. the traction withdrawing device controller is small in size, light in weight and strong in portability, can adjust the operation position in time according to the roadway condition, reduces the safety risk, and is provided with a system pressure display device, so that the working state can be mastered in real time;
5. the two-arm anchor rod scraper can carry out scraping and cleaning on the falling gangue, and can additionally beat an anchor rod to reinforce support so as to construct a rescue space in time; meanwhile, the labor intensity of workers is greatly reduced, and the safety of rescue work is improved;
6. the temporary support ceiling can be quickly lapped with a temporary support system, so that enough safe space is provided for rescue workers to carry out rescue operation, and the risk of rescue work is reduced.
Drawings
Fig. 1 is a schematic view i of a rescue operation cycle of the rescue retraction device of the present invention;
fig. 2 is a schematic view ii of a rescue operation cycle of the rescue retraction device of the present invention;
fig. 3 is a front view of the retracting device of the present invention;
FIG. 4 is a schematic top view of the retracting device of the present invention;
FIG. 5 is a side view of the retractor of the present invention;
FIG. 6 is a schematic illustration of the construction of the two-armed rock-bolt scraper of the present invention;
wherein: 1-a traction and retraction device; 2-two-arm anchor rod scraper; 3-a traction oil cylinder; 4-a traction gimbal; 5-lifting oil cylinder; 6-a jacking device; 7-propping up the cylinder rod of the oil cylinder; 8-supporting the top oil cylinder; 9-a base; 10-a support device; 11-temporary support canopy; 12-a temporary support system; 13-carrying the inclined oil cylinder; 14-a carry-scraper lifting device; 15-a scraper mechanism; 16-a drag chain; 17-rescued equipment; 18-roadway roof; 19-roadway floor.
Detailed Description
The invention is further explained with reference to the accompanying drawings.
The utility model provides an dig in pit and adopt equipment rescue withdrawing device, includes pull withdrawing device 1, two arm stock scraper 2 and drag chain 16, pull withdrawing device 1 through drag chain 16 with by rescue equipment 17 be connected, two arm stock scraper 2 is located one side of pulling withdrawing device 1, pull withdrawing device 1 and be connected with the hydraulic system of two arm stock scraper 2 through the hydraulic hose.
The traction and retraction device 1 comprises a base 9, a traction oil cylinder 3, a traction universal joint 4, a lifting oil cylinder 5, a supporting device 6, a supporting oil cylinder rod 7, a supporting oil cylinder 8 and a controller, wherein one end of the traction oil cylinder 3 is connected with a traction chain 16, the other end of the traction oil cylinder is connected with one end of the traction universal joint 4, the other end of the traction universal joint 4 is connected with the base 9, two cast steel spherical surface column sockets are arranged on the end surface of the base 9, one ends of the lifting oil cylinder 5 and the supporting oil cylinder 8 are respectively located in the cast steel spherical surface column sockets, the lifting oil cylinder 5 is located below the supporting oil cylinder 8, the rod of the lifting oil cylinder 5 is hinged with the lower portion of the supporting oil cylinder 8, a column socket and a pin hole are arranged at one end of the supporting oil cylinder rod 7, one end of the supporting device 6 is located in the column socket of the supporting oil cylinder rod and is connected through a bolt, and the controller controls the traction oil cylinder 3, the lifting oil cylinder 5 and the supporting oil cylinder 8. The controller is provided with an operating handle and a system pressure gauge for controlling the actions of the traction oil cylinder 3, the lifting oil cylinder 5 and the supporting oil cylinder 8, and is also provided with a lifting handle.
The two-arm anchor rod scraper 2 comprises a supporting device 10, a temporary supporting roof 11, a temporary supporting system 12, a scraping inclined oil cylinder 13, a scraping lifting device 14 and a scraping mechanism 15, wherein the temporary supporting roof 11 and the temporary supporting system 12 are located above the supporting device 10, the scraping lifting device 14 and the scraping mechanism 15 are located below the supporting device 10, the temporary supporting roof 11 is connected with the temporary supporting system 12 through a connecting rod, the temporary supporting roof 11 is located at the top end of the temporary supporting system 12, the scraping mechanism 15 is located at one end of the scraping lifting device 14, one end of the scraping inclined oil cylinder 13 is connected with the scraping lifting device 14, and the other end of the scraping inclined oil cylinder is connected with a main frame of the two-arm anchor rod scraper 2. The two-arm anchor rod scraper 2 controls the posture of the supporting device 10 through the oil cylinder.
A use method of a rescue withdrawing device of underground excavation and mining equipment comprises the following steps:
firstly, when excavating and mining working face equipment is buried, pressed or a nest machine is generated, a two-arm anchor rod scraper is used for quickly carrying rescue facilities of a traction and retraction device to a safe area of a working face;
secondly, overlapping the temporary support canopy 11 with a temporary support system 12, cleaning the caving gangue at the tail of the buried equipment by using a two-arm anchor rod scraper 2, additionally installing anchor rods and anchor cables in a caving area for supporting, assisting in erecting a shed, establishing a rescue space, hanging a traction chain 16 to a towing hook at the tail of the buried equipment under the shield of the temporary support canopy 11 by a rescue worker, checking a power supply cable and a traveling system of the equipment, and recovering the buried equipment traveling function;
thirdly, carrying the traction and retraction device 1 to a proper position, connecting a hydraulic rubber hose of the traction and retraction device 1 to a hydraulic system of the two-arm anchor rod carrying scraper 2, operating a cylinder rod of the traction oil cylinder 3 to extend out through a controller, connecting the end part of the cylinder rod with a traction chain 16, operating the lifting oil cylinder 5 and the jacking oil cylinder 8, and enabling the jacking oil cylinder 8 to be completely jacked and bear pressure;
fourthly, the rescuers are all withdrawn into a safe area, the operator operates the controller under the shielding of the temporary support canopy 11 to retract the traction oil cylinder 3, and simultaneously operates the embedded running system to withdraw the machine until the cylinder rod of the traction oil cylinder 3 is completely retracted;
and fifthly, checking, timely cleaning and supporting the rescue space, checking the traction chain 16, adjusting the length of the traction chain, and entering the next traction withdrawal cycle until the equipment is completely withdrawn to a safe area to complete rescue.
Claims (1)
1. A use method of a rescue withdrawing device of underground excavation and mining equipment comprises the steps that the rescue withdrawing device of the underground excavation and mining equipment comprises a traction withdrawing device (1), two-arm anchor rod scraper machines (2) and a traction chain (16), the traction withdrawing device (1) is connected with rescued equipment (17) through the traction chain (16), the two-arm anchor rod scraper machines (2) are located on one side of the traction withdrawing device (1), and the traction withdrawing device (1) is connected with a hydraulic system of the two-arm anchor rod scraper machines (2) through a hydraulic rubber tube;
the traction retraction device (1) comprises a base (9), a traction oil cylinder (3), a traction universal joint (4), a lifting oil cylinder (5), a supporting device (6), a supporting oil cylinder rod (7), a supporting oil cylinder (8) and a controller, wherein one end of the traction oil cylinder (3) is connected with a traction chain (16), the other end of the traction universal joint is connected with one end of the traction universal joint (4), the other end of the traction universal joint (4) is connected with the base (9), the end surface of the base (9) is provided with two cast steel spherical column sockets, one ends of the lifting oil cylinder (5) and the supporting oil cylinder (8) are respectively positioned in the cast steel spherical column sockets, the lifting oil cylinder (5) is positioned below the supporting oil cylinder (8), the cylinder rod of the lifting oil cylinder (5) is hinged with the lower part of the supporting oil cylinder (8), one end of the supporting oil cylinder rod (7) is provided with a column socket and a pin hole, one end of the supporting device (6) is positioned in the column socket of the supporting oil cylinder rod and connected through a pin, the controller controls the traction oil cylinder (3), the lifting oil cylinder (5) and the supporting oil cylinder (8);
the two-arm anchor rod scraper (2) comprises a supporting device (10), a temporary supporting roof (11), a temporary supporting system (12), a scraping inclined oil cylinder (13), a scraping lifting device (14) and a scraping mechanism (15), wherein the temporary supporting roof (11) and the temporary supporting system (12) are positioned above the supporting device (10), the scraping lifting device (14) and the scraping mechanism (15) are positioned below the supporting device (10), the temporary supporting roof (11) is connected with the temporary supporting system (12) through a connecting rod, the temporary supporting roof (11) is positioned at the top end of the temporary supporting system (12), the scraping mechanism (15) is positioned at one end of the scraping lifting device (14), one end of the scraping inclined oil cylinder (13) is connected with the scraping lifting device (14), and the other end of the scraping inclined oil cylinder is connected with a main frame of the two-arm anchor rod scraper (2);
the method is characterized in that: the using method comprises the following steps:
firstly, when excavating and mining working face equipment is buried, pressed or a nest machine is generated, a two-arm anchor rod scraper is used for quickly carrying rescue facilities of a traction and retraction device to a safe area of a working face;
secondly, overlapping a temporary support canopy (11) with a temporary support system (12), cleaning up caving gangue at the tail of the buried equipment by using a two-arm anchor rod scraper (2), additionally installing anchor rods and anchor cables in a caving area for supporting, assisting in erecting the canopy, establishing a rescue space, hanging a drag chain (16) to a towing hook at the tail of the buried equipment by a rescue worker under the shield of the temporary support canopy (11), checking a power supply cable and a traveling system of the equipment, and recovering the buried equipment traveling function;
thirdly, carrying the traction withdrawing device (1) to a proper position, connecting a hydraulic rubber pipe of the traction withdrawing device (1) to a hydraulic system of the two-arm anchor rod carrying scraper (2), operating a cylinder rod of the traction oil cylinder (3) to extend out through a controller, connecting the end part of the cylinder rod with a traction chain (16), and operating the lifting oil cylinder (5) and the supporting oil cylinder (8) to enable the supporting oil cylinder (8) to be completely connected with a roof and bear pressure;
fourthly, the rescuers are all withdrawn into a safe area, the operator operates the controller under the shielding of the temporary support canopy (11) to enable the traction oil cylinder (3) to retract, and simultaneously operates the embedded traveling system to withdraw until the cylinder rod of the traction oil cylinder (3) retracts completely;
and fifthly, checking, timely cleaning and supporting the rescue space, checking a traction chain (16), adjusting the length of the traction chain, and entering the next traction withdrawal cycle until the equipment is completely withdrawn to a safe area to complete rescue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564032.XA CN111927530B (en) | 2020-06-19 | 2020-06-19 | Rescue withdrawing device for underground excavation and mining equipment and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010564032.XA CN111927530B (en) | 2020-06-19 | 2020-06-19 | Rescue withdrawing device for underground excavation and mining equipment and using method thereof |
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| CN111927530A CN111927530A (en) | 2020-11-13 |
| CN111927530B true CN111927530B (en) | 2022-03-08 |
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| CN111927530A (en) | 2020-11-13 |
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