CN110410128B - Crawler-type coal face retracting device and using method thereof - Google Patents
Crawler-type coal face retracting device and using method thereof Download PDFInfo
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- CN110410128B CN110410128B CN201910628142.5A CN201910628142A CN110410128B CN 110410128 B CN110410128 B CN 110410128B CN 201910628142 A CN201910628142 A CN 201910628142A CN 110410128 B CN110410128 B CN 110410128B
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- 239000003245 coal Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 53
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 23
- 239000000428 dust Substances 0.000 claims description 13
- 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
- 230000005540 biological transmission Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005065 mining Methods 0.000 description 7
- 239000000701 coagulant Substances 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
- 239000003638 chemical reducing agent 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
- 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
- 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
- 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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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention discloses a withdrawing device of a crawler-type coal face and a use method thereof, the withdrawing device comprises a base, walking crawlers are arranged on two sides below the base, crawler baffle plates are arranged above the walking crawlers, a support recovery box body is arranged behind the crawler baffle plates, two lifting pillars are arranged above the base, an arch-shaped bearing beam plate is connected above the 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 left mechanical arm and a right mechanical arm, the left mechanical arm is arranged on the left side of the base, the right mechanical arm is arranged on the right side of the base, the withdrawing device of the crawler-type coal face provided by the invention provides a more efficient and practical fully mechanized withdrawing device, the hydraulic support can be directly drawn out once, and the manual support of a single pillar during the 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 crawler-type 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 withdrawing device of a crawler-type coal face and a using 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 the 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 for a crawler-type coal face is characterized in that walking tracks are installed on two sides below a base, a track baffle is installed above each walking track, a support recovery box body is installed behind each track baffle, each walking track drives a gearbox to walk through a motor, the motors are in transmission connection with the gearboxes through transmission shafts, two lifting pillars are installed above the base, arch-shaped bearing beam plates are connected above the lifting pillars through welding, transverse telescopic hydraulic rods are installed below the arch-shaped bearing beam plates, a concrete pump pipe is installed in front of the arch-shaped bearing beam plates, a mechanical arm is installed at the front end of the base and comprises a left mechanical arm and a right mechanical arm, the left mechanical arm is installed on the left side of the base, the right mechanical arm is installed on the right side of the base, transverse plate supports are installed above the left mechanical arm and the right mechanical arm, a dust removal spraying device is arranged between the two hoisting pillars; the walking crawler belt is installed, the use of a rail is not needed in a roadway of a mine factory, the working face is retracted through the walking crawler belt, the walking crawler belt can also convey retracted hydraulic supports, the hydraulic supports are conveyed through the walking crawler belt, the conveying cost is saved, the hydraulic supports are conveyed to a recovery box body at the rear end of the walking crawler belt through the crawler belt to finish conveying and stacking of the hydraulic supports, supporting transverse plates arranged on supporting arms are arranged on a left arm of a manipulator and a right arm of the manipulator, when the working face collapses, the working face can be rapidly supported through the supporting transverse plates above the supporting arms to prevent accidents, the retraction operation of the working face is rapidly finished through 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 generated, the passage is safer, and the operation space is not influenced, when mechanical arm can also appear breaking in the tunnel top, support the emergence of top working face accident prevention, and then carry out the later stage and remedy, mechanical arm can be done emergency treatment in this kind of condition emergence, 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, a front baffle is mounted at the front end of the track baffle, the front baffle and the track baffle are mounted through riveting, and the distance between the front baffle and the walking track is 5-15 cm; in the working face withdrawing, pass through walking track conveying hydraulic support with hydraulic support through manipulator left arm and manipulator right arm, for preventing that hydraulic support from dropping at walking track front end, put preceding baffle with adding, guarantee hydraulic support safety conveying through preceding baffle.
Preferably, the recovery box body comprises a straightening hydraulic plate and a hydraulic plate slide rail, a recovery platform is mounted at the front end of the straightening hydraulic plate, the recovery platform is 3-5 layers and can simultaneously recover 3-5 hydraulic supports, and the hydraulic plate slide rail is in sliding connection with the straightening hydraulic plate; the hydraulic support is recovered in a layered mode through the recovery platform when the hydraulic support is conveyed through the matching of the hydraulic plate and the hydraulic plate slide rail, in the advancing process, the left arm of the manipulator and the right arm of the manipulator retract the hydraulic support in operation, the walking crawler belt moves for every circle, 3-4 hydraulic supports can be disassembled from the left arm of the manipulator and the right arm of the manipulator, when the hydraulic support is conveyed, the recovery platform at the rear can recover 3-5 hydraulic supports, when the recovery platform recovers, the recovery platform separates for 3-5 layers and starts to recover from the lowest end, one layer of the recovery platform descends for every layer, the recovery of the hydraulic support is completed through the descending layers, and after the recovery is completed, the hydraulic plate slide rail moves to the designated position of the recovery box body and is placed.
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 crawler type coal face retracting device comprises the following steps:
s1: in the working face withdrawing process, withdrawing operation of the hydraulic support is carried out through the left manipulator arm and the right manipulator arm, the hydraulic support is grabbed through the grabbers and is retracted through the retracting arms, the hydraulic support is placed on the traveling crawler through the retracting arms and moves forwards through the traveling crawler, the hydraulic support is conveyed to the recovery box body, 3-5 hydraulic supports are placed on the recovery platform in a layered mode through the recovery platform in the recovery box body, the hydraulic support is placed in the recovery box body through the straightening hydraulic plate by the recovery platform, the hydraulic support is conveyed through the traveling crawler, withdrawing speed of the hydraulic support is increased, a large amount of dust and coal ash can be generated in the process, at the moment, the dust removal spraying device enables the spray head to spray water through the pressure spray pipe, and dust and coal ash are 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 reduction of horizontal flexible hydraulic stem rear, during the concrete pours into both sides cliff into, when the concrete pours into thick 3-5 centimetres, stops to pour into, accomplishes the withdrawal work of working face, and then has consolidated the safety in operation tunnel, through walking crawler travel and conveying hydraulic support, has avoided the restriction of walking on the withdrawal device word track, and the crawler travel can accelerate the efficiency of withdrawal device at withdrawal hydraulic support.
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 recovery system comprises a left manipulator arm, 2, a walking crawler belt, 3, a recovery box body, 4, a crawler belt baffle, 5, a base, 6, rollers, 7, a concrete pump pipe, 8, two hoisting 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 right manipulator arm, 22, a spray head, 23, a motor, 24, a gripper, 25, a swing arm, 26, a support arm, 27, a support transverse plate, 28, a telescopic arm, 29, a hydraulic rod, 30, a front baffle, 31, a swing hydraulic plate, 32, a hydraulic plate slide rail, 33, a recovery platform, 34 and a gearbox.
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 crawler-type coal face comprises a base 5, walking crawlers 2 are installed on two sides below the base 5, crawler baffles 4 are installed above the walking crawlers 2, a support recovery box 3 is installed behind the crawler baffles 4, the walking crawlers 2 drive a gearbox 34 to walk through a motor 23, the motor 23 is in transmission connection with the gearbox 34 through a transmission shaft, two hoisting pillars 8 are installed above the base 5, the hoisting pillars 8 are connected with an arch bearing beam plate 16 through welding, a transverse telescopic hydraulic rod 17 is installed below the arch bearing beam plate 16, a concrete pump pipe 7 is installed in front of the arch bearing beam plate 16, mechanical arms are installed at the front end of the base and comprise 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 manipulator right arm 21 is arranged on the right side of the base 5, supporting transverse plates 27 are arranged above the manipulator left arm 1 and the manipulator right arm 21, and a dust removal spraying device is arranged between the two lifting support columns 8; the walking crawler belt is installed, the use of a rail is not needed in a roadway of a mine factory, the working face is retracted through the walking crawler belt, the walking crawler belt can also convey retracted hydraulic supports, the hydraulic supports are conveyed through the walking crawler belt, the conveying cost is saved, the hydraulic supports are conveyed to a recovery box body at the rear end of the walking crawler belt through the crawler belt to finish conveying and stacking of the hydraulic supports, supporting transverse plates arranged on supporting arms are arranged on a left arm of a manipulator and a right arm of the manipulator, when the working face collapses, the working face can be rapidly supported through the supporting transverse plates above the supporting arms to prevent accidents, the retraction operation of the working face is rapidly finished through 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 generated, the passage is safer, and the operation space is not influenced, when mechanical arm can also appear breaking in the tunnel top, support the emergence of top working face accident prevention, and then carry out the later stage and remedy, mechanical arm can be done emergency treatment in this kind of condition emergence, 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, a front baffle 30 is installed at the front end of the track baffle 4, the front baffle 30 and the track baffle 4 are installed through riveting, and the distance between the front baffle 30 and the walking track 2 is 5-15 cm; in the working face withdrawing, pass through walking track conveying hydraulic support with hydraulic support through manipulator left arm and manipulator right arm, for preventing that hydraulic support from dropping at walking track front end, put preceding baffle with adding, guarantee hydraulic support safety conveying through preceding baffle.
Preferably, the recovery box body 3 comprises a straightening hydraulic plate 31 and a hydraulic plate slide rail 32, a recovery platform 33 is installed at the front end of the straightening hydraulic plate 31, the recovery platform 33 is 3-5 layers and can simultaneously recover 3-5 hydraulic supports, and the hydraulic plate slide rail 32 is slidably connected with the straightening hydraulic plate 31; the hydraulic support is recovered in a layered mode through the recovery platform when the hydraulic support is conveyed through the matching of the hydraulic plate and the hydraulic plate slide rail, in the advancing process, the left arm of the manipulator and the right arm of the manipulator retract the hydraulic support in operation, the walking crawler belt moves for every circle, 3-4 hydraulic supports can be disassembled from the left arm of the manipulator and the right arm of the manipulator, when the hydraulic support is conveyed, the recovery platform at the rear can recover 3-5 hydraulic supports, when the recovery platform recovers, the recovery platform separates for 3-5 layers and starts to recover from the lowest end, one layer of the recovery platform descends for every layer, the recovery of the hydraulic support is completed through the descending layers, and after the recovery is completed, the hydraulic plate slide rail moves to the designated position of the recovery box body and is placed.
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 crawler type coal face retracting device comprises the following steps:
s1: in the process of withdrawing the working surface, the withdrawing operation of the hydraulic support is carried out through the left arm 1 and the right arm 21 of the manipulator, the hydraulic bracket is gripped by the gripper 24 and retracted by a retracting arm 28, the hydraulic bracket is placed on the traveling crawler 2 by the retracting arm 28, the hydraulic supports are conveyed to the recovery box body 3 by the forward movement of the walking crawler 2, 3 to 5 hydraulic supports are arranged on the recovery platform 33 in a layered way by the recovery platform 33 in the recovery box body 3, the recovery platform 33 puts the hydraulic support in the recovery box 3 through the straightening hydraulic plate 31, the hydraulic support is conveyed by the walking of the walking crawler belt 2, the retracting speed of the hydraulic support is accelerated, in the process, a large amount of dust and coal ash are generated, and at the moment, the dust removal 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 pillars 8, at the moment, the concrete pump 7 extracts concrete, injects the concrete between the arched bearing beam slab 16 and the working surface, injects the concrete for tamping through the injected concrete, further injects the concrete through the descending of the two bearing pillars 8, injects the concrete with the thickness of 5-10 cm, and finishes the operation;
s3: in this process, the reduction of horizontal scalable hydraulic stem 17 rear, during the concrete pours into both sides cliff into, when the concrete pours into thick 3-5 centimetres into, stops to pour into, accomplishes the withdrawal work of working face, and then consolidated the safety in operation tunnel, through walking at walking track 2 and conveying hydraulic support, avoided the restriction that the withdrawal device walked on the track, track walking 2 can accelerate the efficiency of withdrawal device at the withdrawal hydraulic support.
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 (5)
1. A withdrawing device of a crawler-type coal face is characterized by comprising a base, walking crawlers are installed on two sides below the base, crawler baffles are installed above the walking crawlers, a support recovery box body is installed behind the crawler baffles, the walking crawlers drive a gearbox to walk through a motor, the motor is in transmission connection with the gearbox through a transmission shaft, two lifting pillars are installed above the base, an arch-shaped bearing beam plate is connected above the lifting pillars through welding, a transverse telescopic hydraulic rod is installed below the arch-shaped bearing beam plate, a concrete pump pipe is installed at the rear end of the arch-shaped bearing beam plate, a mechanical arm is installed at the front end of the base and comprises a left mechanical arm and a right mechanical arm, the left mechanical arm is installed on the left side of the base, the right mechanical arm is installed on the right side of the base, the device comprises a left arm and a right arm, a support transverse plate is mounted above the left arm and the right arm, a dedusting and spraying device is mounted between the two lifting support columns, a limiting device is mounted on a transverse telescopic hydraulic rod and comprises a front limiting part and a rear limiting part, the distance between the front limiting part and the rear limiting part is 3-5 cm, the concrete pump pipe is connected with a concrete pump, the concrete pump is placed in a concrete pump pool, the concrete pump pool is mounted at the rear end of a base, the dedusting and spraying device comprises a spray head and a pressure spray pipe, a rotary transverse rod is mounted below the spray head, the pressure range of the pressure spray pipe is 1.5-2.5 MPa, the left arm and the right 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 bolts, and the gripper is mounted at the front end of the swing arm, 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 crawler-type coal face withdrawing device of claim 1, wherein the two lifting pillars are hydraulic pillars capable of lifting, limit switches are mounted on one sides of the two lifting pillars, each limit switch comprises an upper limit and a lower limit, and the distance between the upper limit and the lower limit of each limit switch is 5-10 cm.
3. A crawler-type coal face retracting device according to claim 1, wherein a front baffle is mounted at the front end of the crawler baffle, the front baffle and the crawler baffle are mounted through riveting, and the distance between the front baffle and the walking crawler is 5-15 cm.
4. The device of claim 1, wherein the recovery box body comprises a straightening hydraulic plate and a hydraulic plate slide rail, a recovery platform is mounted at the front end of the straightening hydraulic plate, the recovery platform is 3-5 layers and can simultaneously recover 3-5 hydraulic supports, and the hydraulic plate slide rail is in sliding connection with the straightening hydraulic plate.
5. A method of using a crawler-type coal face retraction device, wherein the coal face retraction device is as claimed in any one of claims 1 to 4, comprising the steps of:
s1: in the working surface withdrawing process, withdrawing operation of a hydraulic support is carried out through the left arm and the right arm of the manipulator, the hydraulic support is grasped through the gripper and contracted through the telescopic arm, the hydraulic support is placed on the walking track through the telescopic arm, the walking track moves forwards to convey the hydraulic support to the recovery box body, 3-5 hydraulic supports are placed on the recovery platform in a layered mode through the recovery platform in the recovery box body, the hydraulic support is placed in the recovery box body through the straightening hydraulic plate by the recovery platform, the hydraulic support is conveyed through the walking track, withdrawing speed of the hydraulic support is increased, a large amount of dust and coal ash can be generated in the process, at the moment, the dust removal spraying device enables the spray head to spray water through the pressure spray pipe, and generation of the dust and the 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, the 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 reduction of horizontal flexible hydraulic stem rear, during the concrete pours into both sides cliff into, when the 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, through walking track walking and conveying hydraulic support, avoided the restriction that the withdrawal device walked on the track, the track walking can accelerate the efficiency of withdrawal device at the hydraulic support.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910628142.5A CN110410128B (en) | 2019-07-12 | 2019-07-12 | Crawler-type coal face retracting device and using method thereof |
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| CN201910628142.5A CN110410128B (en) | 2019-07-12 | 2019-07-12 | Crawler-type coal face retracting device and using method thereof |
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| CN110410128A CN110410128A (en) | 2019-11-05 |
| CN110410128B true CN110410128B (en) | 2020-12-11 |
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| 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 device capable of quickly loading and unloading a combined suspended roof beam support and a loading and unloading method |
| 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 |
| CN208280965U (en) * | 2018-05-23 | 2018-12-25 | 淮矿西部煤矿投资管理有限公司 | Coal mine deep well tunnel smooth surface concrete spraying support structure |
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2019
- 2019-07-12 CN CN201910628142.5A patent/CN110410128B/en active Active
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Effective date of registration: 20220110 Address after: 423400 Sandu Town, Zixing City, Chenzhou City, Hunan Province Patentee after: Hunan coal industry group Baoyuan Mining Co.,Ltd. Address before: Hunan University Science and Technology Park Venture Building, 186 Guyuan Road, Changsha high tech Zone, Changsha City, Hunan Province, 410205 Patentee before: HUNAN 352 ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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