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CN216071836U - Extendable leading end component module and extendable leading end component system - Google Patents

Extendable leading end component module and extendable leading end component system Download PDF

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Publication number
CN216071836U
CN216071836U CN202121001997.4U CN202121001997U CN216071836U CN 216071836 U CN216071836 U CN 216071836U CN 202121001997 U CN202121001997 U CN 202121001997U CN 216071836 U CN216071836 U CN 216071836U
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CN
China
Prior art keywords
module
extendable
leading end
end member
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202121001997.4U
Other languages
Chinese (zh)
Inventor
沙恩·麦克道尔
弗朗西斯·阿塔尔德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delata Engineering Co ltd
Ksg Innovation Co ltd
Anglo American Metallurgical Coal Pty Ltd
Original Assignee
Delata Engineering Co ltd
Ksg Innovation Co ltd
Anglo American Metallurgical Coal Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2020901508A external-priority patent/AU2020901508A0/en
Application filed by Delata Engineering Co ltd, Ksg Innovation Co ltd, Anglo American Metallurgical Coal Pty Ltd filed Critical Delata Engineering Co ltd
Application granted granted Critical
Publication of CN216071836U publication Critical patent/CN216071836U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G41/00—Supporting frames or bases for conveyors as a whole, e.g. transportable conveyor frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
    • B65G15/30—Belts or like endless load-carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/10—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof
    • B65G21/14—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively movable parts; Devices for moving framework or parts thereof to allow adjustment of length or configuration of load-carrier or traction element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
    • 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
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/06—Transport of mined material at or adjacent to the working face
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
    • B65G2203/02—Control or detection
    • B65G2203/0266—Control or detection relating to the load carrier(s)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/30—Modular constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Control Of Conveyors (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

The present invention relates to an extendable lead end member module for use in longwall mining and an extendable lead end member system comprising an extendable lead end member which is attachable, the extendable lead end member module being usable between a mobile lead end member and a belt conveyor, ideally in series, to reduce downtime of the mining operation due to downtime to remove part of the belt conveyor as a result of advancement of the longwall. The present invention also relates to an extensible leading end component system comprising one or more extensible leading end component modules and a mobile leading end component, and a method of operating the extensible leading end component system.

Description

Extendable leading end component module and extendable leading end component system
Technical Field
The present disclosure relates to conveyor systems used in longwall mining, and in particular to conveyor systems for conveying material mined using longwall systems.
Background
Various different devices exist for mining coal and other materials from underground coal seams. One type of equipment that may be used in underground mining operations includes mining machines used in the case of extended portions or longwalls of a coal seam to be mined. Such a long wall may be up to 2 km long.
In longwall mining, the mined material may be cut or sheared at incremental shears (about 1 meter at a time) from the most distant portion of the longwall onwards towards the main mine tunnel. The mined material in each cut may be transported along a conveyor belt running along a longwall face (armored face conveyor) to a beam-type segment loader (BSL). The mined material may be transferred by the BSL onto a leading end component, which may be coupled to a stationary belt conveyor that conveys the mined material further away from the longwall face. The belt conveyor typically runs perpendicular to the armored face conveyor. At the outer end of the belt conveyor may also be another conveyor ("mine life" conveyor or "main" conveyor) that transports the mined material to another location.
The conveyor system may be comprised of a conveyor belt having leading end members at an inner end (closest to the BSL) and a cantilever at an outer end. The leading end component can receive mined material from the BSL and then lead the end component along the conveyor belt to the cantilever and "mine life" conveyor.
As the longwall advances, the position of the BSL and leading end piece need to be advanced accordingly as material is sheared from the longwall surface so that the BSL and leading end piece can continue to be located near the end of the longwall face. In prior systems, the BSL could be advanced about two meters (about two shears of a longwall face) on the leading end piece. Beyond this point, the leading end component itself also needs to be moved. In order to have space for the leading end part to be moved, it is necessary to remove a part of the conveyor belt. In conventional operation of a long wall process, this requires removal of a portion of the conveyor belt approximately every 4 to 5 hours.
To remove a portion of the conveyor belt, the longwall mining process must be stopped. Thus, the mining process is stopped for about 20 minutes every 4 to 5 hours to remove the relevant portion of the conveyor belt so that the leading end segment can be advanced further. Although a change takes only about 20 minutes, it takes a total of about 4 hours per week, with the downtime of the longwall mining machine accumulating up to millions of dollars of production loss per week.
Where in this specification a document, act or item of knowledge is referred to or discussed, this reference or discussion is not an admission that the document, act or item of knowledge or any combination thereof was at the priority date publicly available, known to the public, part of the common general knowledge; or is known to be associated with attempting to solve any problems with which this specification is concerned.
SUMMERY OF THE UTILITY MODEL
Disclosed herein is an extendable lead end component module for use in longwall mining, the extendable lead end component module comprising a length adjustable frame having an inner end and an outer end and a longitudinal axis extending therebetween, the length adjustable frame comprising: a first end structure at an inner end of the length adjustable frame; a second end structure located at an outer end of the length adjustable frame; one or more telescoping structures extending along a longitudinal axis between the first end structure and the second end structure; and a conveying section extending along the first axis between the inner end to the outer end of the length adjustable frame to convey mined material from the inner end to the outer end. The extendable leading end member module further comprises: one or more module length adjusters operable to extend and/or retract the length adjustable frame; a module controller to direct movement of the length adjuster; and one or more electronic module sensors to provide information to the module controller regarding the current length of the length adjustable frame.
In some forms the first end structure further comprises a first connector engageable with the leading end member and/or another extendable leading end member module, and the second end structure further comprises a second connector engageable with the belt conveyor system and/or another extendable leading end member module.
In some forms, the module length adjuster includes a hydraulic cylinder, but other devices may be used.
In some forms, the one or more electronic module sensors are reed rods, but other sensors may be used.
In some forms, the extendable leading end member module further comprises an extendable leg on either side of the length adjustable frame. Preferably, the extendable leg has a stabilising element operable to extend and retract the extendable leg. Preferably, the stabilizing element is a hydraulic cylinder.
In some forms, each of the extendable legs also has one or more electronic sensors to provide information to the module controller regarding the length of each of the extendable legs. Preferably, each of the extendable legs has a reed rod to sense the length of the leg and an inclinometer to sense the angle of the leg relative to the ground. Most preferably, the module controller will use this information to determine whether it is necessary to extend or retract the hydraulic cylinders on the legs to raise or lower each of the extendable legs to stabilize the length adjustable frame.
Also disclosed herein is an extendable leading end component system comprising an extendable leading end component module as described above and a mobile leading end component. The mobile lead end component includes a body including an inner end and an outer end and a longitudinal axis extending therebetween, the body including: a receiving portion at the inner end to receive mined material from the base section loader; a connector at the outer end and engageable with the extendable lead end member module; and a delivery portion between the receiving portion and the connector to deliver mined material to the extendable lead end member module; wherein the connector of the leading end member engages the first connector of the extendable leading end member module; and wherein the leading end member extends along a common longitudinal axis to the extendable leading end member module.
In some forms, the body further includes a pivot table on which the receiving portion is slidable along the longitudinal axis between a minimum allowable position towards the inner end of the body and a maximum allowable position towards the outer end of the body.
In some forms, the body is a length adjustable body and the leading end component further comprises: one or more leading end component length adjusters operable to extend and/or retract the body; a leading end part controller that directs movement of the leading end part length adjuster; and one or more electronic lead end component sensors that provide information to the lead end component controller regarding the position of the receiving portion relative to the body of the lead end component.
In some forms, the lead end member length adjuster is a hydraulic cylinder and the one or more electronic lead end member sensors are reed rods. Alternatively, other sensors and devices for adjustment may be used.
In some forms the module controller and the boot end component controller are connected by a wireless network. Alternatively, the connection may be wired.
Also disclosed herein is an extendable leading end component system as described above, and further comprising a series of connected extendable leading end component modules, wherein each extendable leading end component module is joined at a first connector of each extendable leading end component module with another extendable leading end component module at a second connector of the other extendable leading end component module, such that the extendable leading end component system extends along a common longitudinal axis to form a row of extendable leading end component modules through which mined material may pass.
In some forms having a single extendable leading end component module, the extendable leading end component system further comprises a belt conveyor system connected to the second connector of the extendable leading end component module. In another form having a series of extendable leading end member modules, the extendable leading end member system further comprises a belt conveyor system connected to the second connector of the extendable leading end member modules in the series at an end of the series of connected extendable leading end member modules opposite the mobile leading end member.
Also disclosed herein is a method of operating the extendable leading end component system described above as the mobile leading end component advances a leading end component distance. The method comprises the following steps: detecting a leading end component distance using a leading end component sensor; determining a module distance, which is the distance each module should retract for a total retraction distance reflecting the lead end member distance; and retracting the module length adjusters by a module distance for each module.
In some forms the lead end component controller and/or the module controller determines the module distance. Preferably, the module controller then directs retraction of the module length adjuster by the module distance. Alternatively, the leading end component controller directs retraction of the module length adjuster by the module distance.
In some forms, the module distance for each module is a distance between zero and the leading end member distance. Preferably, the module distance for each module is the leading end member distance divided by the number of modules.
In some forms, the method of operating an extensible leading end component system further comprises the steps of: the length of the length adjustable frame for each module is detected, it is determined whether the length adjustable frame has been retracted the module distance by comparing the length of the length adjustable frame with the length of the length adjustable frame before the module length adjuster is retracted the module distance, and if the length adjustable frame has not been retracted the module distance, the module length adjuster for that module is further retracted.
In some forms the method further comprises an initial step of: detecting a position of the receiving portion on the body of the leading end member; comparing the position of the receiving portion with a predetermined maximum allowable position; and if the receiving portion is in the predetermined maximum allowable position, causing the movable leading end component to move the leading end component distance in an outward direction.
Drawings
Various embodiments/aspects of the present disclosure will now be described with reference to the following drawings, in which,
fig. 1 is a diagram of an extendable leading end member module according to a preferred embodiment of the present invention, showing the extendable leading end member module in a fully retracted position.
Fig. 2 is a diagram of the extendable guide end member module of fig. 1, showing the extendable guide module in a fully extended position.
Fig. 3 is a diagram of a series of connected extendable leading end component modules.
Fig. 4 is a diagram of a leading end member according to a preferred embodiment of the present invention.
Fig. 5 is a diagram of an extensible leading end component system.
Fig. 6 is a diagram of a portion of a conveyor system including a portion of an extendable leading end member system and a base section loader, and a fixed belt conveyor.
Detailed Description
In this specification, "inward" refers to a direction closest to the mine site and the working front end, and "outward" refers to a direction furthest from the mine site and the working rear end.
An extendable leading end member according to the present disclosure will now be described with reference to fig. 1 to 5.
As shown in fig. 1 and 2, is an extendable leading end member module 1. The extendable lead end component module 1 comprises a frame consisting of a first end structure 2 at the inner end of the frame and a second end structure 3 at the outer end of the frame, the first end structure 2 and the second end structure 3 being connected by one or more telescopic structures 4. The extendable leading end member module 1 has two telescoping structures, and each of these structures is a telescoping structure made up of many sub-structures of reduced size, such that each structure can nest (e.g., sit, support) within the previous sub-structure. Along the upper length of the extendable leading end member module 1 is a conveying portion of the frame which, in a detailed embodiment, comprises a conveyor support 5 and an endless conveyor belt (conveyor belt not shown) which in use is located on the conveyor support 5. In use, the conveying section conveys mined material from the inner end of the frame to the outer end of the frame.
The extendable leading end module 1 further comprises a length adjuster, which in the detailed embodiment is shown as a hydraulic actuator (cylinder) 6. In a detailed embodiment, the extendable leading end member module 1 comprises two hydraulic cylinders 6, each of the two hydraulic cylinders 6 being located between the first end structure 2 and the second end structure 3. The hydraulic actuator 6 and the connection between the hydraulic actuator 6 and the structure 4 are configured such that when the actuator 6 is retracted or extended, the actuator 6 has the effect of retracting or extending the telescopic structure 4 by the same amount.
The extendable lead end member module 1 further comprises one or more sensors, which in the detailed embodiment are shown as reed rods 7. In a detailed embodiment, there are two reed rods 7, and each of the two reed rods 7 is located between the first end structure 2 and the second end structure 3. Each reed rod 7 is made of two parts, wherein the second part has a reduced size so that it can nest within the first part. The sensors within the reed rod 7 allow the sensors to determine the length of the reed rod 7 and thus the current length of the telescopic structure 4.
The extendable lead end module 1 also includes a module controller 8. The module controller 8 is in wireless communication with both the hydraulic cylinder 6 and the reed rod 7. In the detailed embodiment shown in fig. 1 and 2, the module controller 8 is located on the extendable leading end module 1, but the module controller 8 may also be located separately from the extendable leading end module 1. One or both reed rods 7 provide information to the module controller 8 to determine the length of the telescopic structure 4. The module controller 8 then compares the information from the reed rod 7 with the required length of the telescopic structure and outputs a command (i.e. retract or extend) to the hydraulic cylinder 6.
On the inner end of the first end structure 2 is a first connector 9, the first connector 9 being configured to engage with a corresponding connector on a mobile leading end piece 10 (see fig. 5) or another extendable leading end piece module 1 (see fig. 3). On the outer end of the second end structure 3 is a second connector. The second connector is configured to engage with a fixed belt conveyor 12 (see fig. 6) or another extendable leading end member module 1. In this way, a plurality of extendable leading end component modules 1 can be connected to one another to form a series of extendable leading end component modules 1, the series of extendable leading end component modules 1 extending between the outer end of a mobile leading end component 10 and the inner end of a fixed belt conveyor 12 (see fig. 6). For example, in the detailed embodiment shown in fig. 3, the series of extendable leading end member modules 1 comprises four extendable leading end member modules 1. The extendable leading end member modules 1 are connected to each other, to the mobile leading end member 10 and to the belt conveyor 12 via a pin-joint mounting arrangement.
The extendable leading end module 1 further comprises extendable legs 13 on either side of the second end structure 3. The extendable leg 13 further comprises a stabilising element, which in the detailed embodiment is shown as a hydraulic actuator (cylinder) 14, the hydraulic actuator (cylinder) 14 being operable to extend and retract the extendable leg. Each extendable leg 13 also includes an electronic sensor in the form of a reed rod (not shown) and an inclinometer (not shown).
The reed rod senses the length of the extendable leg 13 and provides this information to the module controller 8. The module controller 8 then compares the information from the reed rod to the current required length of the extendable leg 13 and directs retraction or extension of the hydraulic cylinder 14 as required.
The inclinometer detects the angle of the extendable leg 13 relative to the ground and provides this angle information to the module controller 8. The module controller 8 uses this angle information to determine whether the extendable leading end member module 1 is level. By ensuring that the extendable leading end module 1 is horizontal, effective conveyance of mined material along the conveying section 5 can be ensured.
The mobile leading end part 10 in the extendable leading end part system has a body 11, the body 11 having a receiving portion 18 at an inner end of the body, the receiving portion 18 receiving, in use, mined material from a base section loader 22, the base section loader 22 being located above the receiving portion 18 of the mobile leading end part 10. The receiving portion 18 is able to slide on the body 11 by means of a pivoting table 19, which allows the receiving portion 18 to be positioned at a plurality of different positions with respect to the body 11. By sliding along the body 11, the receiving portion 18 may be positioned to receive mined material from the base section loader 22 as the base section loader 22 advances one or more times without having to move the mobile lead end 10 each time the base section loader 22 advances. At the outer end of the mobile leading end member 10 is a connector 20, the connector 20 being engageable with the first connector 9 of the extendable leading end member module 1. Extending along the upper length of the mobile lead end piece 10 from the inner end to the outer end is a transfer section which in the detailed embodiment comprises a chute 21. In use, the receiving portion 18 is located below the base section loader 22 (see fig. 6) and receives mined material from the base section loader 22. The mined material is then transferred via the clean out chute 21 to the outer end of the mobile lead end component 10 for delivery to the connected extendable lead end component module 1.
In a detailed embodiment, the mobile leading end member 10 has extendable legs 23 similar to those of the extendable leading end member modules 1. Extendable leg 23 is located on either side of connector 20, and extendable leg 23 includes: a stabilizing element, shown in the form of a hydraulic actuator (cylinder) 24, the hydraulic actuator (cylinder) 24 being configured to extend and retract the extendable legs 23; and an electronic sensor in the form of a reed rod and inclinometer.
The reed rod 25 detects the length of the extendable leg 23 and provides this information to the leading end component controller 27. The leading end component control 27 then compares the information from the reed rod 25 to the current desired length of the extendable leg 23 and directs the retraction or extension of the hydraulic cylinder 24 as needed.
The inclinometer detects the angle of the extendable leg 23 relative to the ground and provides this information to the lead end controller 27, where the lead end controller 27 uses this information to determine whether the mobile lead end 10 is level.
In the detailed embodiment shown in fig. 1 and 2, the leading end component controller 27 is located on the mobile leading end component 10, but the leading end component controller 27 may also be located separately from the extendable mobile leading end component 10. In either embodiment, the leading end piece controller is wirelessly connected to the reed rod 25, inclinometer, and hydraulic cylinder 24.
In a detailed embodiment, the mobile leading end component 10 further comprises: a length adjuster, shown as a hydraulic actuator (cylinder) 28; and an electronic lead end piece sensor in the form of a reed rod. The lead end component controller 27 is also connected to the hydraulic cylinder 28 and the reed rod 29 in a wireless manner.
The receiving portion 18 has a maximum allowable position and a minimum allowable position with respect to the body 11, each of the maximum allowable position and the minimum allowable position being a predetermined position. At the minimum allowable position, the receiving portion 18 will be positioned toward the inner end of the body 11. At the maximum allowable position, the receiving portion 18 will be positioned towards the outer end of the body 11.
At the start of operation of the extendable leading end member system, the mobile leading end member 10 will be positioned such that the receiving portion 18 is at the minimum allowable position for the receiving portion 18.
Each shear of the long wall will cause the base section loader 22 to advance a distance on the mobile nose piece 10. In normal operation, this distance is about one meter. The movement of the receiving portion 18 along the body 11 on the pivoting table 19 is registered by the reed rod 29. Information from the reed rod 29 is sent to the leading end piece controller 27, and the leading end piece controller 27 compares the information with the predetermined maximum allowable position and the minimum allowable position of the receiving portion 18. If the receiving portion 18 is not in the maximum allowable position, the mobile lead end 10 will remain in the home position. If the receiving portion 18 is in the maximum allowable position, the mobile leading end piece will advance away from the base segment loader 22 a predetermined distance, referred to as the leading end piece distance, and the receiving portion 18 returns to the minimum allowable distance of the receiving portion 18. This movement is performed by: the hydraulic cylinder 24 extends to advance the outer end portion of the moving lead end 10 forward in an outward direction and then retracts to advance the inner end portion of the moving lead end 10 forward in an outward direction.
In a detailed embodiment, the distance between the minimum and maximum allowed positions of the receiving portion 18 is two shears of the long wall (about 2 meters), and the leading end member distance is also the distance of the two shears of the long wall.
When the mobile leading end component 10 has advanced the leading end component distance, the extendable leading end component module needs to be retracted by a corresponding amount because the extendable leading end component module is connected to the fixed belt conveyor at the outer end of the extendable leading end component module.
When the leading end component controller 27 determines that the leading end component needs to be advanced the leading end component distance, the leading end component controller 27 will also determine the distance the extendable leading end module 1 needs to be advanced (referred to as the module distance). The leading end part controller 27 will then guide the hydraulic cylinder 6 via the module controller 8 to retract the module distance, wherein the reed rod 7 ensures that the hydraulic cylinder 6 retracts the proper distance while guiding the moving leading end part 10 forward. In an alternative embodiment, the lead end component controller 27 may direct the movement of the hydraulic cylinder 6 and receive information from the reed rod 7 without the need for the module controller 8.
In the case of a single extendable leading end component module 1, the module distance will be the same as the leading end component distance. In having a series of extendable leading end member modules 1 (as in the detailed embodiment), the module distance for each extendable leading end member module 1 will be a distance between zero and the leading end member distance, where the sum of the module distances for each extendable leading end member module equals the leading end member distance.
In one embodiment, for any given movement of the mobile leading end piece 10, only one extendable leading end piece module 1 will be retracted. In this embodiment, the module distance for one extendable lead member module 1 will be the lead member distance, and the module distances for the remaining extendable lead member modules 1 will be zero.
In another embodiment, each of the extendable leading end modules will retract an equal distance for any given movement of the mobile leading end component 10. In this embodiment, the module distance for each extendable leading end module 1 will be the leading end distance divided by the number of extendable leading end modules.
The cycle of movement of the mobile leading end member 10 and retraction of the extendable leading end member modules 1 will continue until one or more of the extendable leading end member modules 1 is in a fully retracted position, as shown in figure 1. The mobile leading end component 10 will then push the fully retracted extendable leading end component module 1 forward until no further movement can be made without removing a portion of the fixed belt conveyor 12. In a preferred embodiment, the outer end of the extendable leading end member module closest to the belt conveyor 12 will have a limit switch 30, the limit switch 30 being engageable with the fixed belt conveyor 12. When the limit switch is engaged with the fixed belt conveyor 12, the limit switch 30 sends a signal to the leading end component controller 27, the leading end component controller 27 determines that the mobile leading end component cannot travel any further, and the limit switch 30 sends a signal to the hydraulic cylinder 28 to immediately stop the mobile leading end component 10 from advancing any further.
Once the advancement of the mobile leading end piece 10 is stopped, a portion of the fixed belt conveyor 12 will be removed, preferably equal to the total length of the extendable leading end piece module. The extendable leading end module will then be extended such that the outermost extendable leading end module meets and can engage the inner end of the fixed belt conveyor 12. The extendable leading end member module is then connected to the fixed belt conveyor 12.
When the extendable lead end member module reaches its fully extended position (as shown in fig. 2) or otherwise bridges the gap between the outer end of the extendable lead end member system and the fixed belt conveyor, the information from the reed rod 15 and inclinometer 16 will be used by the module controller 8 to determine the appropriate length of the extendable leg 13 and cause the hydraulic cylinder 14 to extend or retract accordingly. Then, the advancing process of the movable leading end part 10 and the retracting process of the extendable leading end part module 1 will be resumed.
By using an extendable leading end component system, the time between shutdowns to remove a portion of a fixed belt conveyor increases greatly from every 4 to 5 hours to many hours of increase depending on the length of each extendable leading end component module and the number of extendable leading end component modules used. Reduced down time in one day and one week during longwall mining means that more material can be mined with a concomitant increase in revenue.
As used in this specification and the claims, the word "comprise" and forms of the word "comprise" do not limit the claimed invention to exclude any variants or additions.
Modifications and improvements to the present invention will be apparent to those skilled in the art. Such modifications and improvements are intended to be within the scope of the utility model.

Claims (10)

1. An extendable leading end component module for use in longwall mining, the extendable leading end component module comprising:
a length adjustable frame extending along a longitudinal axis between an inner end and an outer end, the length adjustable frame comprising:
a first end structure located at the inner end of the length adjustable frame;
a second end structure located at the outer end of the length adjustable frame;
one or more retractable structures extending substantially parallel to the longitudinal axis between the first end structure and the second end structure; and
a conveying section extending generally parallel to the longitudinal axis between the inner end and the outer end of the length adjustable frame, the conveying section configured to convey mined material from the inner end to the outer end;
one or more module length adjusters configured to extend and retract a length of the length adjustable frame;
a module controller in communication with the one or more module length adjusters to extend and retract the one or more module length adjusters; and
one or more module sensors in communication with the module controller, the one or more module sensors configured to provide information to the module controller regarding the length of the length adjustable frame.
2. The extendable guide end member module of claim 1, wherein said first end structure comprises a first connector engageable with the guide end member and/or another extendable guide end member module, and said second end structure comprises a second connector engageable with the belt conveyor system and/or another extendable guide end member module.
3. The extendable guide end member module of claim 1 or 2, wherein said one or more module length adjusters comprise a hydraulic actuator.
4. The extendable guide end member module of any one of claims 1 to 3, wherein said one or more module sensors comprise reed rods.
5. The extendable guide end member module of any one of claims 1 to 4, further comprising an extendable leg disposed on either side of said length adjustable frame.
6. The extendable guide end member module of claim 5, wherein each extendable leg comprises a stabilizing element configured to extend and retract said extendable leg.
7. The extendable lead end member module of claim 6, further comprising one or more sensors associated with each of said extendable legs, said one or more sensors associated with said extendable legs configured to provide information to said module controller regarding the length of each of said extendable legs.
8. The extendable guide end member module of claim 7, wherein said module controller is configured to determine whether said stabilizing element needs to raise or lower each of said extendable legs to stabilize said length adjustable frame based on information received from said one or more sensors associated with said extendable legs.
9. An extendible lead end member system comprising an extendible lead end member module according to any of claims 1 to 8 and a mobile lead end member, wherein the mobile lead end member comprises:
a body extending along a longitudinal axis of the body between an inner end and an outer end of the body, the body comprising:
a receiving portion at the inner end arranged to receive mined material from a base section loader;
a connector disposed at the outer end, the connector configured to engage the extendable leading end component module at the outer end; and
a delivery portion disposed between the receiving portion and the connector to deliver mined material to the extendable leading end member module;
wherein the connector of the movable leading end component engages with a first connector of the extendable leading end component module; and is
Wherein the mobile leading end member extends along a common longitudinal axis to the extendable leading end member module.
10. The extendable guide end member system of claim 9, wherein said body further comprises a pivot table, said receiving portion being slidable on said pivot table along said longitudinal axis of said body between a minimum allowable position towards said inner end of said body and a maximum allowable position towards said outer end of said body.
CN202121001997.4U 2020-05-11 2021-05-11 Extendable leading end component module and extendable leading end component system Expired - Fee Related CN216071836U (en)

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US5938004A (en) * 1997-02-14 1999-08-17 Consol, Inc. Method of providing temporary support for an extended conveyor belt
CN101952183B (en) * 2007-12-11 2013-06-19 约翰·布莱姆荷斯 Extensible support equipment and adopt haulage equipment and mining equipment of this support equipment
CN102071966B (en) * 2010-12-19 2013-06-12 汪允岭 Telescopic belt conveyer tail
AT514368B1 (en) * 2013-05-28 2015-09-15 Sandvik Mining & Constr Oy Dispensing of underground mined material
CN112020597A (en) * 2018-04-20 2020-12-01 山特维克矿山工程机械有限公司 System and method for controlling movement of a mobile mining machine
AU2019204572B2 (en) * 2019-01-14 2022-02-10 Joy Global Underground Mining Llc Systems and methods for automated control of a beam stageloader bootend

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