CN110410127B - Withdrawal device for self-moving coal face and use method thereof - Google Patents
Withdrawal device for self-moving coal face and use method thereof Download PDFInfo
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- CN110410127B CN110410127B CN201910628094.XA CN201910628094A CN110410127B CN 110410127 B CN110410127 B CN 110410127B CN 201910628094 A CN201910628094 A CN 201910628094A CN 110410127 B CN110410127 B CN 110410127B
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- 239000003245 coal Substances 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000003466 welding Methods 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 14
- 238000005065 mining Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 239000010883 coal ash Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000701 coagulant Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 208000028571 Occupational disease Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a withdrawing device of a self-moving coal face and a use method thereof, and the withdrawing device comprises a base, wherein four rollers are arranged below the base, base supporting devices are arranged on the front sides of the four rollers respectively, each base supporting device comprises a supporting frame and a limiting stopper, two lifting pillars are arranged on two sides of the base, an arch-shaped bearing beam plate is connected above the two lifting pillars through welding, a transverse telescopic hydraulic rod is arranged below the arch-shaped bearing beam plate, a mechanical arm is arranged at the front end of the base and comprises a mechanical arm left arm and a mechanical arm right arm, the mechanical arm left arm is arranged on the left side of the base, the mechanical arm right arm is arranged on the right side of the base, the withdrawing device of the self-moving coal face provided by the invention provides a more efficient and practical withdrawing device, a hydraulic support can be directly withdrawn at one time, and single manual support during withdrawing of the working face is replaced, meanwhile, the supporting strength is ensured.
Description
Technical Field
The invention belongs to the field of mineral exploitation, and particularly relates to a self-moving coal face withdrawing device and a using method thereof.
Background
The comprehensive coal mining method of the coal mine greatly improves the coal mining quantity and the recovery rate, the fully mechanized mining equipment must be recycled, and in the process of withdrawing the equipment from the working face, due to laggard withdrawal processes and procedures, particularly in the withdrawal process of a hydraulic support, potential safety hazards are caused, the working efficiency is low, the labor intensity of personnel is high, the material waste is high, and the like.
Disclosure of Invention
The invention aims to provide a self-moving coal face withdrawing device and a use method thereof, which aim to solve the problems in the background technology and provide a more efficient and practical fully-mechanized coal face withdrawing device, a hydraulic support can be directly drawn out at one time, the manual support of a single support column during the withdrawing of a working face is replaced, and the support strength is ensured.
In order to achieve the purpose, the invention provides the following technical scheme: a withdrawing device of a self-moving coal face comprises a base, four rollers are arranged below the base, the front sides of the four rollers are respectively provided with a base support device, the base support devices comprise a support frame and a limiting stopper, two lifting pillars are arranged on two sides of the base, an arch-shaped bearing beam plate is connected above the two lifting pillars through welding, a transverse telescopic hydraulic rod is arranged below the arched bearing beam plate, a concrete pump pipe is arranged in front of the arched bearing beam plate, the front end of the base is provided with a mechanical arm which comprises a left mechanical arm and a right mechanical arm, the left mechanical arm is arranged on the left side of the base, the right arm of the manipulator is arranged on the right side of the base, supporting transverse plates are arranged above the left arm of the manipulator and the right arm of the manipulator, and a dust removal spraying device is arranged between the two lifting support columns; the front of the four rollers is provided with a supporting device, when the front of the rollers is moved in place, the retracting device is wholly supported by the supporting device, the two guide rails are linearly moved forwards by the left arm and the right arm of the mechanical arm, when the rollers are moved in place, the hydraulic rod of the supporting device is contracted to reset the retracting device, so that the purpose of self-moving is achieved, the left arm and the right arm of the mechanical arm are provided with supporting transverse plates arranged on the supporting arms, when the working surface collapses, the supporting transverse plates above the supporting arms can rapidly support the working surface to prevent accidents, the retracting operation of the working surface is rapidly completed by the mutual matching of all parts, an arched bearing beam plate is used, the pressure of an upper coal mine can be reduced mainly when the bearing pressure is applied, the passage is safer, the operation space is not influenced, and when the mechanical arm breaks above a roadway, support the emergence of top working face prevention accident, and then carry out the later stage and remedy, this kind of condition takes place robotic arm and can do emergency treatment, and sends the warning of reporting to the police, and the technical staff of being convenient for arrives the tunnel of affairs rapidly.
Preferably, the lifting support column is a lifting hydraulic support column, a limit switch is arranged on one side of the lifting support column, the limit switch comprises an upper limit and a lower limit, and the distance between the upper limit and the lower limit of the limit switch is 5-10 cm; the operation in the concrete injection process is completed through the upper limit and the lower limit of the limit switch, fine treatment is achieved, injection of concrete is completed according to different geological requirements, manual measurement and calculation are not needed, operation can be completed, labor is saved, and cost is saved.
Preferably, the transverse telescopic hydraulic rod is provided with a limiting device, the limiting device comprises a front limiting device and a rear limiting device, and the distance between the front limiting device and the rear limiting device is 3-5 cm; when the same both sides rock-wall bearing, also solidify through the injection of concrete and reach and do not use hydraulic support, just can accomplish the supporting role, practice thrift the hydraulic pressure bracing piece and use, increase the frequency of use of hydraulic stem, it is extravagant to reduce equipment, increases the rate of utilization of equipment.
Preferably, the support frame comprises a hydraulic rod and a support plate, the limiter is mounted on the hydraulic rod, the telescopic distance of the hydraulic rod is 40-70 cm, the support plate is mounted below the hydraulic rod through welding, the support plate is square, the thickness of the support plate is 5-8 cm, and the area of the support plate is 400-900 square cm; the retracting device can be supported by the hydraulic rod and the supporting plate to prepare for the forward movement of the guide rail, in the supporting process, as the hard ground and the loose ground exist in the soil in the mine, the supporting plate is added to prevent the hydraulic rod from sinking into the ground in the supporting process, and bears the gravity of the whole retracting device, the thickness of the supporting plate is set to be 5-8 cm according to the gravity of the retracting device, and the area of the supporting plate is 400 plus 900 square centimeters.
Preferably, a motor is installed on one side of the roller, the roller is controlled to move through the motor, the power of the motor is 5-10 kilowatts, the roller is controlled to move through the motor, the workload of personnel is reduced, and the economic benefit is improved.
Preferably, the concrete pump pipe is connected with a concrete pump, the concrete pump is placed in the concrete pump pool, and the concrete pump pool is installed at the rear end of the base; the bearing capacity of the roadway is improved by injecting concrete, a concrete coagulant is added in the concrete to accelerate the setting time of the concrete, and 3-5 kg of the concrete coagulant is added in every 350 kg of cement.
Preferably, the dedusting and spraying device comprises a spray head and a pressure spray pipe, wherein a rotary cross rod is arranged below the spray head, and the pressure range of the pressure spray pipe is 1.5-2.5 MPa; in the coal mining surface withdrawing engineering, a large amount of dust and coal ash are generated, so that a large amount of workers get diseases, and occupational diseases of the workers are caused.
Preferably, the left manipulator arm and the right manipulator arm comprise a gripper, a swing arm, a support arm and a telescopic arm, the support transverse plate is mounted at the upper end of the support arm through a bolt, the gripper is mounted at the front end of the swing arm through a servo motor and a harmonic reducer, the swing arm is mounted at the front end of the support arm through a cylindrical ball bearing, the support arm is mounted at the front end of the telescopic arm through a cylindrical ball bearing, and the rear end of the telescopic arm is fixed on the base through a bolt; the withdrawing operation of the hydraulic support is completed through the left arm and the right arm of the manipulator, and meanwhile, when the withdrawing device moves automatically, the withdrawing operation is completed through the left arm of the manipulator and the right arm of the manipulator in mutual cooperation, the advancing operation of the two guide rails is completed, the withdrawing operation is continuously performed, and the situation that the hydraulic support cannot advance due to the fact that no guide rail exists in the front is avoided.
Preferably, the use method of the self-moving type coal face retracting device comprises the following steps:
s1: in the working surface retracting process, retracting operation of the hydraulic support is carried out through the left manipulator arm and the right manipulator arm, the hydraulic support is grasped through the gripper and retracted through the retracting arm, retracting operation is carried out, the gripper transfers the hydraulic support to the base through rotation of the swinging arm, the retracting speed of the hydraulic support is accelerated through simultaneous work of the left manipulator arm and the right manipulator arm, a large amount of dust and coal ash are generated in the process, and at the moment, the dust removal spraying device enables the spray nozzle to spray water through the pressure spray pipe, so that the generation of dust and coal ash is reduced;
s2, after the hydraulic support is pulled out, the base moves forwards, the arched bearing beam plate props against an upper operation surface through the lifting of the two bearing support columns, at the moment, the concrete pump extracts concrete, injects the concrete between the arched bearing beam plate and the working surface, further injects the concrete through the descending of the two bearing support columns by injecting the concrete for tamping, and injects the concrete with the thickness of 5-10 cm to finish the operation;
s3: in this process, the horizontal flexible hydraulic stem rear reduces, and during the concrete pours into both sides cliff into, when concrete pours into thick 3-5 centimetres, stops to pour into, accomplishes the withdrawal work of working face, and then consolidated the safety in operation tunnel, when accomplishing the operation forward again, because the restriction of the place ahead guide rail, through the support frame props up the withdrawal device, through arm left arm with on the arm right side of manipulator flexible arm will the guide rail removes forward, removes the back that targets in place, on the support frame the hydraulic stem shrink is accomplished the operation of removing by oneself of withdrawal device.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides a more efficient, more practical fully mechanized coal mining withdrawing device can directly once take hydraulic support out, has replaced the artifical support of monomer pillar during working face withdrawal, has guaranteed simultaneously and has strutted intensity.
Drawings
Fig. 1 is a schematic structural view of a withdrawal device of a coal face of the invention.
FIG. 2 is a schematic view of the arched girder structure according to the present invention.
Reference numerals: 1. the hydraulic lifting device comprises a manipulator left arm, 2, a support frame, 3, a support plate, 4, a limiter, 5, a base, 6, rollers, 7, a concrete pump pipe, 8, two lifting pillars, 9, a telescopic hydraulic rod, 10, a concrete pump, 11, a concrete pump pool, 12, a pressure spray pipe, 13, a limit switch, 14, an upper limit, 15, a lower limit, 16, an arch-shaped bearing beam plate, 17, a transverse telescopic hydraulic rod, 18, a limit device, 19, a front limit, 20, a rear limit, 21, a mechanical right arm, 22, a spray head, 23, a motor, 24, a hand grip, 25, a swing arm, 26, a support arm, 27, a support transverse plate, 28, a telescopic arm, 29 and a hydraulic rod.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 and 2, the withdrawing device for the self-moving coal face comprises a base 5, four rollers 6 are installed below the base 5, a base supporting device is installed on the front sides of the four rollers 6, the base supporting device comprises a supporting frame 2 and a limiting stopper 4, two lifting pillars 8 are installed on two sides of the base 5, an arch-shaped bearing beam plate 16 is connected above the two lifting pillars 8 through welding, a transverse telescopic hydraulic rod 17 is installed below the arch-shaped bearing beam plate 16, a concrete pump pipe 7 is installed in front of the arch-shaped bearing beam plate 16, a mechanical arm is installed at the front end of the base and comprises a mechanical arm left arm 1 and a mechanical arm right arm 21, the mechanical arm left arm 1 is installed on the left side of the base 5, the mechanical arm right arm 21 is installed on the right side of the base 5, supporting transverse plates 27 are installed above the mechanical arm left arm 1 and the mechanical arm right arm 21, a dust removal spraying device is arranged between the two lifting struts 8; the front of the four rollers is provided with a supporting device, when the front of the rollers is moved in place, the retracting device is wholly supported by the supporting device, the two guide rails are linearly moved forwards by the left arm and the right arm of the mechanical arm, when the rollers are moved in place, the hydraulic rod of the supporting device is contracted to reset the retracting device, so that the purpose of self-moving is achieved, the left arm and the right arm of the mechanical arm are provided with supporting transverse plates arranged on the supporting arms, when the working surface collapses, the supporting transverse plates above the supporting arms can rapidly support the working surface to prevent accidents, the retracting operation of the working surface is rapidly completed by the mutual matching of all parts, an arched bearing beam plate is used, the pressure of an upper coal mine can be reduced mainly when the bearing pressure is applied, the passage is safer, the operation space is not influenced, and when the mechanical arm breaks above a roadway, support the emergence of top working face prevention accident, and then carry out the later stage and remedy, this kind of condition takes place robotic arm and can do emergency treatment, and sends the warning of reporting to the police, and the technical staff of being convenient for arrives the tunnel of affairs rapidly.
Preferably, the lifting support column is a lifting hydraulic support column, a limit switch is arranged on one side of the lifting support column, the limit switch comprises an upper limit 14 and a lower limit 15, and the distance between the upper limit 14 and the lower limit 15 of the limit switch is 5-10 cm; the operation in the concrete injection process is completed through the upper limit and the lower limit of the limit switch, fine treatment is achieved, injection of concrete is completed according to different geological requirements, manual measurement and calculation are not needed, operation can be completed, labor is saved, and cost is saved.
Preferably, the transverse telescopic hydraulic rod is provided with a limiting device 18, the limiting device 18 comprises a front limiting device 19 and a rear limiting device 20, and the distance between the front limiting device 19 and the rear limiting device 20 is 3-5 cm; when the same both sides rock-wall bearing, also solidify through the injection of concrete and reach and do not use hydraulic support, just can accomplish the supporting role, practice thrift the hydraulic pressure bracing piece and use, increase the frequency of use of hydraulic stem, it is extravagant to reduce equipment, increases the rate of utilization of equipment.
Preferably, the support frame comprises a hydraulic rod 29 and a support plate 3, the stopper is mounted on the hydraulic rod 29, the telescopic distance of the hydraulic rod 29 is 40-70 cm, the support plate 3 is mounted below the hydraulic rod by welding, the support plate 3 is square, the thickness of the support plate 3 is 5-8 cm, and the area of the support plate 3 is 400-900 square cm; the retracting device can be supported by the hydraulic rod and the supporting plate to prepare for the forward movement of the guide rail, in the supporting process, as the hard ground and the loose ground exist in the soil in the mine, the supporting plate is added to prevent the hydraulic rod from sinking into the ground in the supporting process, and bears the gravity of the whole retracting device, the thickness of the supporting plate is set to be 5-8 cm according to the gravity of the retracting device, and the area of the supporting plate is 400 plus 900 square centimeters.
Preferably, a motor 23 is installed on one side of the roller 6, the roller 6 is controlled to move by the motor 23, and the power of the motor 23 is 5-10 kilowatts; the roller is controlled by the motor to move, so that the workload of personnel is reduced, and the economic benefit is improved.
Preferably, the concrete pump pipe 7 is connected with a concrete pump 10, the concrete pump 10 is placed in the concrete pump pool 11, and the concrete pump pool 11 is installed at the rear end of the base 5; the bearing capacity of the roadway is improved by injecting concrete, a concrete coagulant is added in the concrete to accelerate the setting time of the concrete, and 3-5 kg of the concrete coagulant is added in every 350 kg of cement.
Preferably, the dedusting and spraying device comprises a spray head 22 and a pressure spray pipe 12, wherein a rotary cross rod is arranged below the spray head 22, and the pressure of the pressure spray pipe 12 is 1.5-2.5 MPa; in the coal mining surface withdrawing engineering, a large amount of dust and coal ash are generated, so that a large amount of workers get diseases, and occupational diseases of the workers are caused.
Preferably, the manipulator left arm 1 and the manipulator right arm 21 include a hand grip 24, a swing arm 25, a support arm 26 and a telescopic arm 28, the support cross plate 27 is mounted at the upper end of the support arm 26 through a bolt, the hand grip 24 is mounted at the front end of the swing arm 25 through a servo motor and a harmonic reducer, the swing arm 25 is mounted at the front end of the support arm 26 through a cylindrical ball bearing, the support arm 26 is mounted at the front end of the telescopic arm 28 through a cylindrical ball bearing, and the rear end of the telescopic arm 28 is fixed on the base 5 through a bolt; the withdrawing operation of the hydraulic support is completed through the left arm and the right arm of the manipulator, and meanwhile, when the withdrawing device moves automatically, the withdrawing operation is completed through the left arm of the manipulator and the right arm of the manipulator in mutual cooperation, the advancing operation of the two guide rails is completed, the withdrawing operation is continuously performed, and the situation that the hydraulic support cannot advance due to the fact that no guide rail exists in the front is avoided.
Preferably, the use method of the self-moving type coal face retracting device comprises the following steps:
s1: in the process of withdrawing a working surface, withdrawing operation of a hydraulic support is carried out through the left manipulator arm 1 and the right manipulator arm 21, the hydraulic support is grasped through the hand grip 24 and contracted through the telescopic arm 28, withdrawing operation is carried out, the hand grip 24 transfers the hydraulic support to the base 5 through rotation of the swing arm 25, the withdrawing speed of the hydraulic support is increased through simultaneous working of the left manipulator arm 1 and the right manipulator arm 21, a large amount of dust and coal ash are generated in the process, and at the moment, the dedusting and spraying device enables the spray head 22 to spray water through the pressure spray pipe 12, so that the generation of dust and coal ash is reduced;
s2, after the hydraulic support is pulled out, the base 5 moves forwards, the arched bearing beam slab 16 props against an upper operation surface through the lifting of the two bearing support columns 8, at the moment, the concrete pump 10 extracts concrete, the concrete is injected between the arched bearing beam slab 16 and a working surface, the concrete is further injected through the descending of the two bearing support columns by injecting concrete tamping, and the concrete is injected with the thickness of 5-10 cm, so that the operation is completed;
s3: in this process, transversely flexible hydraulic stem 17 rear reduces, and during the concrete pours into both sides cliff into, when concrete pours into thick 3-5 centimetres, stops to pour into, accomplishes the withdrawal work of working face, and then consolidated the safety in operation tunnel, when accomplishing the operation forward again, because the restriction of place ahead guide rail, through support frame 2 props up the withdrawal device, through arm left arm 1 with on the arm right side 21 flexible arm 28 removes the guide rail forward, removes the back of targetting in place, on the support frame 2 hydraulic stem 29 shrink accomplishes the self-moving operation of withdrawal device.
Compared with the prior art, the invention has the beneficial effects that: the utility model provides a more efficient, more practical fully mechanized coal mining withdrawing device can directly once take hydraulic support out, has replaced the artifical support of monomer pillar during working face withdrawal, has guaranteed simultaneously and has strutted intensity.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions are considered to be within the protective scope of the present invention.
Claims (6)
1. A self-moving type coal face withdrawing device is characterized by comprising a base, four rollers are mounted below the base, a base supporting device is mounted on the front sides of the four rollers and comprises a supporting frame and a limiting stopper, two lifting support columns are mounted on two sides of the base, an arch-shaped bearing beam plate is connected above the two lifting support columns through welding, a transverse telescopic hydraulic rod is mounted below the arch-shaped bearing beam plate, a concrete pump pipe is mounted at the rear end of the arch-shaped bearing beam plate, a mechanical arm is mounted at the front end of the base and comprises a mechanical arm left arm and a mechanical arm right arm, the mechanical arm left arm is mounted on the left side of the base, the mechanical arm right arm is mounted on the right side of the base, supporting transverse plates are mounted above the mechanical arm left arm and the mechanical arm right arm, and a dust removal spraying device is mounted between the two lifting support columns, the two lifting support columns are lifting hydraulic support columns;
one side of each of the two lifting struts is provided with a limit switch which comprises an upper limit and a lower limit, the distance between the upper limit and the lower limit of the limit switch is 5-10 cm, the transverse telescopic hydraulic rod is provided with a limit device, the limiting device comprises a front limiting device and a rear limiting device, the distance between the front limiting device and the rear limiting device is 3-5 cm, the manipulator left arm and the manipulator right arm comprise a gripper, a swing arm, a supporting arm and a telescopic arm, the supporting transverse plate is arranged at the upper end of the supporting arm through a bolt, the hand grip is arranged at the front end of the swinging arm through a servo motor and a harmonic reducer, the swing arm is installed at the front end of the supporting arm through a cylindrical ball bearing, the supporting arm is installed at the front end of the telescopic arm through a cylindrical ball bearing, and the rear end of the telescopic arm is fixed on the base through a bolt.
2. The retracting device of the self-moving coal face as claimed in claim 1, wherein the support frame comprises a hydraulic rod and a support plate, the stopper is mounted on the hydraulic rod, the telescopic distance of the hydraulic rod is 40-70 cm, the support plate is mounted below the hydraulic rod by welding, the support plate is square, the thickness of the support plate is 5-8 cm, and the area of the support plate is 400-900 square cm.
3. The retracting device of the self-moving coal mining working surface according to claim 1, wherein a motor is installed on one side of the roller, the movement of the roller is controlled by the motor, and the power of the motor is 5-10 kilowatts.
4. The withdrawal device for the self-propelled coal mining working surface according to claim 1, wherein the concrete pump pipe is connected with a concrete pump, the concrete pump is placed in a concrete pump pool, and the concrete pump pool is installed at the rear end of the base.
5. The withdrawal device for the self-moving coal face as claimed in claim 1, wherein the dust removal spraying device comprises a spray head and a pressure spray pipe, a rotary cross rod is mounted below the spray head, and the pressure of the pressure spray pipe is in a range of 1.5-2.5 MPa.
6. A method of using a withdrawal apparatus for a self-moving coal face, the withdrawal apparatus for a coal face being as claimed in any one of claims 1 to 5, comprising the steps of:
s1: in the working surface retracting process, retracting operation of the hydraulic support is carried out through the left manipulator arm and the right manipulator arm, the hydraulic support is grasped through the gripper and retracted through the telescopic arm, retracting operation is carried out, the gripper transfers the hydraulic support to the base through rotation of the swing arm, retracting speed of the hydraulic support is increased through simultaneous work of the left manipulator arm and the right manipulator arm, a large amount of dust and coal ash can be generated in the process, and at the moment, the dust removal spraying device enables the spray nozzle to spray water through the pressure spray pipe, so that generation of dust and coal ash is reduced;
s2, after the hydraulic support is pulled out, the base moves forwards, the arched bearing beam plate props against an upper operation surface through the lifting of the two lifting support columns, at the moment, a concrete pump pumps concrete, the concrete is injected between the arched bearing beam plate and the upper operation surface, the concrete is compacted through the injection of the concrete, the concrete is further injected through the descending of the two lifting support columns, the thickness of the injected concrete is 5-10 cm, and the operation is finished;
s3: in this process, the horizontal flexible hydraulic stem rear reduces, and during the concrete pours into both sides cliff into, when concrete pours into thick 3-5 centimetres, stops to pour into, accomplishes the withdrawal work of working face, and then consolidated the safety of operation tunnel, when accomplishing the operation forward again, because the restriction of the place ahead guide rail, through the support frame props up the withdrawal device, the rethread manipulator left arm with on the manipulator right arm flexible arm will the guide rail removes forward, removes the back that targets in place, the hydraulic stem shrink on the support frame accomplishes the self-moving operation of withdrawal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628094.XA CN110410127B (en) | 2019-07-12 | 2019-07-12 | Withdrawal device for self-moving coal face and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910628094.XA CN110410127B (en) | 2019-07-12 | 2019-07-12 | Withdrawal device for self-moving coal face and use method thereof |
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| CN110410127A CN110410127A (en) | 2019-11-05 |
| CN110410127B true CN110410127B (en) | 2020-12-15 |
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Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094618U (en) * | 1991-06-24 | 1992-01-29 | 郑州铁路局西安科学技术研究所 | Protecting device for tunnel construction |
| RU2235208C1 (en) * | 2003-03-17 | 2004-08-27 | Институт угля и углехимии СО РАН | Support unit for supporting breakage face of steeply inclined high coal bed |
| PL2247826T3 (en) * | 2008-02-19 | 2015-01-30 | Rag Ag | Method for the controlled maintaining of a distance between the roof and the face in longwall mining operations |
| CN102116164B (en) * | 2011-01-23 | 2012-12-05 | 湖南科技大学 | Temporary supporting device for roadway drifting |
| CN102352756B (en) * | 2011-07-28 | 2014-11-26 | 中铁二十二局集团第六工程有限公司 | Door arc steel frame reinforcing system |
| CN102678155B (en) * | 2012-05-30 | 2015-02-11 | 山西东华机械有限公司 | Crawler-type retracement machine for hydraulic bracket |
| CN103437798B (en) * | 2013-07-24 | 2017-01-18 | 枣庄联鑫实业有限责任公司 | Device for installing and removing fully mechanized mining supporter |
| CN103867223B (en) * | 2014-02-24 | 2016-06-01 | 欧亚伟 | Hacking shed tunnel is with suspended back timber hydraulic prop device |
| CN104500113B (en) * | 2014-12-06 | 2016-08-24 | 中国煤炭科工集团太原研究院有限公司 | Accumulator column dismounting vehicle |
| CN207245739U (en) * | 2017-07-17 | 2018-04-17 | 南京石诚井巷装备有限责任公司 | Hydraulic support withdrawing suspension device and fully mechanized mining support apparatus |
| CN107605522B (en) * | 2017-08-14 | 2019-02-26 | 中国矿业大学 | A kind of device and handling frame method of energy quick despatch combined type suspending upper beam bracket |
| CN107448215B (en) * | 2017-09-04 | 2023-06-06 | 中铁五局集团第五工程有限责任公司 | Tunnel secondary lining A-shaped trolley width adjustable device |
| CN108457686A (en) * | 2018-04-18 | 2018-08-28 | 贵州大学 | A kind of balanced type Telescopic movable supporting arch up and down |
| CN108643938B (en) * | 2018-05-23 | 2024-04-05 | 淮矿西部煤矿投资管理有限公司 | Smooth surface shotcrete supporting structure of deep coal mine tunnel and construction method thereof |
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2019
- 2019-07-12 CN CN201910628094.XA patent/CN110410127B/en active Active
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