CN109882219B - Fully mechanized mining face retraction system - Google Patents
Fully mechanized mining face retraction system Download PDFInfo
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- CN109882219B CN109882219B CN201910298914.3A CN201910298914A CN109882219B CN 109882219 B CN109882219 B CN 109882219B CN 201910298914 A CN201910298914 A CN 201910298914A CN 109882219 B CN109882219 B CN 109882219B
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- 239000003245 coal Substances 0.000 claims abstract description 33
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- 230000007704 transition Effects 0.000 claims description 29
- 230000033001 locomotion Effects 0.000 claims description 11
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- 229910000831 Steel Inorganic materials 0.000 description 3
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- 238000006073 displacement reaction Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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Abstract
The application provides a combine and adopt working face withdrawal system relates to coal mining technical field, solves to a certain extent and solves when solving the hydraulic support that combines to adopt the working face withdrawal that exists among the prior art, work efficiency is low and unsafe technical problem. The utility model provides a fully mechanized coal mining face withdrawal system includes: the device comprises a turning mechanism, a driving mechanism and a movable supporting mechanism; the turning mechanism is connected with the driving mechanism, the driving mechanism is used for driving the turning mechanism to move along the arrangement direction of the hydraulic support, and the turning mechanism is used for adjusting the direction of the hydraulic support; the movable support mechanism is arranged on one side of the hydraulic support to be removed, when the hydraulic support is removed, the movable support mechanism can move to the position of the removed hydraulic support, and the turning mechanism automatically turns and moves the retractable hydraulic support and automatically moves the support mechanism, so that the manual labor is reduced, and the working efficiency is improved.
Description
Technical Field
The application relates to the technical field of coal mining, in particular to a fully-mechanized coal mining face retraction system.
Background
In coal mining, the hydraulic support is required to be used for supporting, so that coal mining is performed normally, in the prior art, when the hydraulic support is required to be withdrawn after coal mining, the working efficiency is low, the hydraulic support is unsafe, and the modern requirements cannot be met.
Disclosure of Invention
An object of the application is to provide a combine and adopt working face withdrawal system, when solving to a certain extent that combine and adopt working face withdrawal hydraulic support that exists among the prior art, work efficiency is low and unsafe technical problem.
The application is realized by the following technical scheme: a fully mechanized coal face retraction system for retracting a hydraulic mount, comprising: the device comprises a turning mechanism, a driving mechanism and a movable supporting mechanism;
the turning mechanism is connected with the driving mechanism, the driving mechanism is used for driving the turning mechanism to move along the arrangement direction of the hydraulic support, and the turning mechanism is used for adjusting the direction of the hydraulic support; the movable support mechanism is arranged on one side of the hydraulic support to be removed, and when the hydraulic support is removed, the movable support mechanism can move to the position of the removed hydraulic support.
Specifically, the turning mechanism includes: the buffer table piece, the transition piece and the traction assembly;
the transition piece is connected with the transition piece, just the transition piece is close to hydraulic support one side sets up, the transition piece is kept away from hydraulic support one side sets up, the traction assembly sets up one side of transition piece and keep away from the transition piece sets up, the traction assembly is used for drawing and transferring to hydraulic support.
Specifically, the traction assembly comprises a first driving piece, a track, a first sliding block, a movable pulley, a traction rope and a mounting seat;
the movable pulley is arranged on the first sliding block, one end of the first driving piece is fixed on the mounting seat, the other end of the first driving piece is fixedly connected with the first sliding block, and the first driving piece can drive the first sliding block to move on the track;
one end of the traction rope is fixed on the mounting seat and bypasses the movable pulley to be connected with the hydraulic support.
Specifically, the driving mechanism comprises a shield support, a first driving jack and a second driving jack; a first driving jack is arranged between the shield support and the turning mechanism and is used for driving the turning mechanism to move along the direction of the hydraulic support to be removed; the second driving jack is arranged inside the shield support and is used for stretching or shrinking between the driving shield supports.
Specifically, the movable supporting mechanism comprises a support column assembly, a telescopic assembly, a lifting assembly and a sliding mechanism;
the telescopic assembly is connected with the support column assembly, the lifting assembly is used for driving the telescopic assembly to move along a first direction, the lifting assembly is arranged on the sliding mechanism, the sliding mechanism is used for driving the lifting assembly to move along a second direction, and the first direction is perpendicular to the second direction.
The sliding mechanism is connected with the guide beam in a sliding way.
Specifically, locating pieces are arranged on two sides of the pushing mechanism, and the locating pieces are connected with the pushing mechanism through chains.
Specifically, the sliding mechanism comprises a first sliding component, a second sliding component and a sliding chute;
the first sliding component and the second sliding component are respectively arranged at two sides of the guide beam, one side of the chute is connected with the first sliding component, and the other side of the chute is connected with the second sliding component;
the chute is buckled on the guide beam, and can slide along the length direction of the guide beam, and the lifting assembly is arranged on the chute.
Specifically, the turning mechanism further comprises a first safety protection component; the first safety protection assembly is arranged at one end connected with the transition piece and is far away from the driving mechanism, and the first safety protection assembly is used for preventing the hydraulic support from sliding out of the track;
the first safety protection component comprises a second driving piece and a connecting rod, and the second driving piece can drive the connecting rod to do linear motion.
Specifically, the turning mechanism further comprises a second safety protection assembly; the second safety protection assembly is arranged on one side of the transition piece and far away from the driving mechanism;
the second safety protection assembly comprises a driving assembly, a limiting rod, a first vertical rod, a second vertical rod, a third vertical rod and a chassis;
the chassis is provided with a first vertical rod, a second vertical rod and a third vertical rod; the first vertical rod and the second vertical rod are arranged at intervals along the arrangement direction of the hydraulic support, and the second vertical rod and the third vertical rod are arranged at intervals perpendicular to the arrangement direction of the hydraulic support;
one end of the driving component is arranged on the first vertical rod, the other end of the driving component is connected with the limiting rod, and the driving component is used for driving the limiting rod to rotate along the horizontal direction;
the third vertical rod is provided with a groove, and the groove is used for supporting the limiting rod.
Compared with the prior art, the fully mechanized coal mining face retraction system has the following advantages: a fully mechanized coal face retraction system for retracting a hydraulic mount, comprising: the device comprises a turning mechanism, a driving mechanism and a movable supporting mechanism; the turning mechanism is connected with the driving mechanism, the driving mechanism is used for driving the turning mechanism to move along the arrangement direction of the hydraulic support, and the turning mechanism is used for adjusting the direction of the hydraulic support; the movable supporting mechanism is arranged on one side of the hydraulic support to be removed, and when the hydraulic support is removed, the movable supporting mechanism can move to the position of the removed hydraulic support, so that the technical problems of low working efficiency and unsafe in the prior art are solved to a certain extent.
The hydraulic support is driven to move by the turning mechanism, traction and turning of the hydraulic support are achieved, when the hydraulic support moves to the turning mechanism, the movable supporting mechanism moves to the position of the last removed hydraulic support, the supporting function of the mine roof is achieved, the turning mechanism automatically turns and moves the hydraulic support, the supporting mechanism automatically moves, manual labor is reduced, and work efficiency is improved.
When the hydraulic support is retracted on the fully mechanized mining face, one end of the traction rope is hung at one end of the hydraulic support to be retracted, then the first driving piece is driven to stretch, the first sliding block moves along the length direction of the track, at the moment, the traction rope pulls the hydraulic support to be retracted to move to the transition piece through the buffer piece, namely, the movement and direction adjustment of the hydraulic support to be retracted are realized, meanwhile, the movable supporting mechanism moves to the position of the hydraulic support to be retracted, the action of supporting is realized, the collapse phenomenon is avoided, after the hydraulic support to be retracted located on the transition piece is transported by the retracting vehicle, the driving mechanism drives the transfer mechanism to move along the arrangement direction of the hydraulic support to be retracted, and the next hydraulic support to be retracted is prepared to be retracted, so that the working efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a fully-mechanized coal mining face retracting system according to an embodiment of the present disclosure at a first view angle;
fig. 2 is a schematic structural diagram of a fully-mechanized coal mining face retracting system according to an embodiment of the present disclosure at a second view angle;
fig. 3 is a schematic structural diagram of a turning mechanism of the fully-mechanized coal mining face retracting system provided in the embodiment of the present application under a first view angle;
fig. 4 is a schematic structural diagram of a turning mechanism of the fully-mechanized coal mining face retracting system provided in the embodiment of the present application under a second view angle;
fig. 5 is a schematic structural diagram of a mobile support mechanism of a fully-mechanized coal mining face retraction system according to an embodiment of the present disclosure at a first view angle;
fig. 6 is a schematic structural diagram of a mobile support mechanism of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a second view angle;
fig. 7 is a schematic structural diagram of a mobile support mechanism of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a third view angle;
fig. 8 is a schematic structural diagram of a mobile support mechanism of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a fourth view angle.
In the figure: 1-a driving mechanism; 11-shield support; 12-a first drive jack; 13-a second drive jack; 2-moving the support mechanism; a 21-strut assembly; 211-a telescopic rod; 212-a protective beam; 213-base plate; 22-telescoping assembly; 221-telescoping arm; 222-steering arm; 223-connecting rod; 224-a fixture; 225-a first positioning column; 226-a second positioning post; 23-a lifting assembly; 24-a first slide assembly; 241-first sliding jack; 242-a first pulley; 243-sliding grooves; 25-pushing mechanism; 251-positioning piece; 252-limiting piece; 253-a chain; 26-a guide beam; 27-a second slide assembly; 271-a second sliding jack; 272-a second pulley; 3-a turning mechanism; 30-a buffer piece; 31-transition piece; 32-a second safety shield assembly; 321-a drive assembly; 322-limit rod; 323-a first vertical bar; 324-a second vertical bar; 325-a third vertical bar; 326-chassis; 33-a traction assembly; 331-a first drive member; 332-track; 333-a first slider; 334-a movable pulley; 34-a first safety shield assembly; 341-a second driver; 342-a connecting rod; 4-hydraulic support.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present application, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application.
All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
1-8, wherein FIG. 1 is a schematic structural diagram of a fully-mechanized mining face retraction system provided in an embodiment of the present application at a first view angle; fig. 2 is a schematic structural diagram of a fully-mechanized coal mining face retracting system according to an embodiment of the present disclosure at a second view angle; fig. 3 is a schematic structural diagram of a turning mechanism 3 of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a first view angle; fig. 4 is a schematic structural diagram of the turning mechanism 3 of the fully-mechanized coal mining face retracting system provided in the embodiment of the present application under a second view angle; fig. 5 is a schematic structural diagram of the mobile support mechanism 2 of the fully-mechanized coal mining face retracting system according to the embodiment of the present application at a first view angle; fig. 6 is a schematic structural diagram of the mobile support mechanism 2 of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a second view angle; fig. 7 is a schematic structural diagram of the mobile support mechanism 2 of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a third view angle; fig. 8 is a schematic structural diagram of the mobile support mechanism 2 of the fully-mechanized coal mining face retracting system according to the embodiment of the present application under a fourth view angle.
Referring now to fig. 1-8, a fully mechanized coal face retraction system for retracting a hydraulic mount 4, comprising: a turning mechanism 3, a driving mechanism 1 and a movable supporting mechanism 2;
the turning mechanism 3 is connected with the driving mechanism 1, the driving mechanism 1 is used for driving the turning mechanism 3 to move along the arrangement direction of the hydraulic support 4, and the turning mechanism 3 is used for retracting the hydraulic support 4; the movable support mechanism 2 is provided on one side of the hydraulic bracket 4 to be removed, and when the hydraulic bracket 4 is removed, the movable support mechanism 2 can be moved to the position of the removed hydraulic bracket 4.
Compared with the prior art, the hydraulic support 4 to be retracted is driven to move by the turning mechanism 3, traction and turning of the hydraulic support 4 to be retracted are achieved, when the hydraulic support 4 moves to the turning mechanism 3, the movable support mechanism 2 moves to the position of the last removed hydraulic support 4, supporting effect on a mine roof is achieved, the turning mechanism 3 automatically turns and moves the hydraulic support 4 and the movable support mechanism 2, and working efficiency is improved.
When the hydraulic support 4 is retracted on the fully mechanized mining face, firstly, one end of the traction rope is hung at one end of the hydraulic support 4 to be retracted, then the first driving piece 331 is driven, the first sliding block 333 moves along the length direction of the track 332, at this time, the traction rope pulls the hydraulic support 4 to be retracted to move towards the transition piece 31 through the buffer piece 30, namely, the movement and direction adjustment of the hydraulic support 4 to be retracted are realized, meanwhile, the movable support mechanism 2 moves towards the position of the hydraulic support 4 to be retracted, the action of supporting is realized, so that collapse phenomenon does not occur, when the hydraulic support 4 to be retracted on the transition piece 31 is transported by the retraction vehicle, the driving mechanism 1 drives the switching mechanism 3 to move along the arrangement direction of the hydraulic support 4 to be retracted, the next hydraulic support 4 to be retracted is prepared, and the working efficiency is improved in the whole process.
In one embodiment of the present application, as shown in conjunction with fig. 3 and 4, the turning mechanism 3 includes: a transition piece 30, a transition piece 31, and a traction assembly 33; the buffer table 30 is connected with the transition piece 31, and the buffer table 30 is close to one side of the hydraulic support 4, the transition piece 31 is far away from one side of the hydraulic support 4, the traction component 33 is arranged on one side of the transition piece 31 and far away from the buffer table 30, and the traction component 33 is used for traction and steering to the hydraulic support 4.
Specifically, in this application slow down platform piece 30 and transition piece 31 swivelling joint or for dismantling the connection, promptly after using, slow down platform piece 30 and transition piece 31 can fold, reduce transfer mechanism 3's occupation space through folding, convenient transportation.
In one embodiment of the present application, as shown in connection with fig. 3 and 4, the traction assembly 33 includes a first drive 331, a track 332, a first slider 333, a traveling block 334, a traction cable, and a mount; the movable pulley 334 is arranged on the first slider 333, one end of the first driving piece 331 is fixed on the mounting seat, the other end of the first driving piece 331 is fixedly connected with the first slider 333, and the first driving piece 331 can drive the first slider 333 to move on the track 332; one end of the traction rope is fixed on the mounting seat and is connected with the hydraulic support 4 by bypassing the movable pulley 334.
Specifically, the movable pulley 334 is rotatably disposed on the first slider 333, a traction rope is wound on the movable pulley 334, after one end of the movable pulley 334 is fixed, the other end of the movable pulley 334 pulls the hydraulic support 4, when the first driving member is driven, the first slider 333 drives the movable pulley 334 to move forward, because one end of the traction rope is fixed, the other end pulls the hydraulic support 4, the movable pulley 334 pushes the traction rope forward to generate a pulling force, the hydraulic support 4 is pulled to the transition member 31 from the buffer member 30, and finally the hydraulic support 4 is transferred to the chassis 326. It should be noted that in this embodiment, other pulling methods may be used, for example, the movable pulley 334 is fixed, the pulling cable bypasses the movable pulley 334, one end is pulled on the hydraulic support 4, an external force is applied to pull the other end of the pulling cable, so as to achieve pulling of the hydraulic support 4, and an appropriate driving method is selected according to practical situations, so long as the hydraulic support 4 can be pulled.
In one embodiment of the present application, as shown in connection with fig. 3 and 4, the turning mechanism 3 further comprises a first safety shield assembly 34; the first safety protection assembly 34 is arranged on one side of the transition piece 31 and is far away from the driving mechanism 1, and the first safety protection assembly 34 is used for preventing the hydraulic support 4 from sliding out of the buffer table piece 30 when being retracted;
the first safety protection assembly 34 includes a second driving member 341 and a connecting rod 342, where the second driving member 341 can drive the connecting rod 342 to make a linear motion.
Specifically, when the hydraulic support 4 is pulled, along with the movement of the hydraulic support 4, the direction of traction force can change along with the direction change of the traction rope, the hydraulic support 4 receives the reaction force of traction force, torque is generated to be easy to twist, the first safety protection component 34 is propped against the mine wall, the generated torque can be counteracted, the traction is prevented from being influenced by the torsion of the hydraulic support 4, and the construction safety is ensured.
More specifically, a protective net is further provided on the first safety protection assembly 34 to prevent the hydraulic bracket 4 from escaping to threaten the safety of the constructors when the hydraulic bracket 4 is pulled.
In one embodiment of the present application, as shown in connection with fig. 3 and 4, the turning mechanism 3 further comprises a second safety shield assembly 32; the second safety shield assembly 32 is disposed on one side of the transition piece 31 and away from the drive mechanism 1; the second safety shield assembly 32 includes a drive assembly 321, a stop bar 322, a first vertical bar 323, a second vertical bar 324, a third vertical bar 325, and a chassis 326.
The chassis 326 is provided with a first vertical rod 323, a second vertical rod 324 and a third vertical rod 325; the first vertical rod 323 and the second vertical rod 324 are arranged at intervals along the arrangement direction of the hydraulic support 4, and the second vertical rod 324 and the third vertical rod 325 are arranged at intervals perpendicular to the arrangement direction of the hydraulic support 4.
One end of the driving component 321 is arranged on the first vertical rod 323, the other end of the driving component is connected with the limiting rod 322, and the driving component 321 is used for driving the limiting rod 322 to rotate along the horizontal direction; the third vertical rod 325 is provided with a groove for supporting the limit lever 322.
Specifically, the second safety protection component 32 effectively prevents the hydraulic support 4 from falling off the chassis 326 due to inertia or other external factors, and ensures the smoothness and safety of construction.
Specifically, the third montant 325 is provided with the recess, falls in the recess when gag lever post 322 resets, and third montant 325 supports gag lever post 322 in vertical direction, avoids gag lever post 322 to receive the action of gravity to damage gag lever post 322 and second montant 324 even the axial region, has restricted the displacement of gag lever post 322 simultaneously in the horizontal direction, plays the limiting displacement, guarantees the stability that gag lever post 322 resets and opens, and then improves the life of second safety protection subassembly 32.
Specifically, the first vertical rod 323 and the second vertical rod 324 are disposed at the same height, and the limiting rod 322 is pulled in the horizontal direction, so that the limiting rod 322 can rotate in the horizontal direction. It should be noted that, the setting of the limiting rod 322 rotates in the horizontal direction, but the setting is not limited to this setting, and it may also be set to rotate at an inclined angle, or rotate in the vertical direction, so long as the limiting rod can be limited during resetting, and the hydraulic support 4 is not affected during opening.
More specifically, the driving assembly 321 employs a hydraulic cylinder, which is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion); the device has simple structure and reliable operation; when it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines.
In one embodiment of the present application, as shown in connection with fig. 1 and 2, the driving mechanism 1 comprises a shield support 11, a first driving jack 12 and a second driving jack 13; the number of the shield supports 11 is at least three, the number of the first driving jacks 12 is at least three, the first driving jacks 12 are arranged between the shield supports 11 and the turning mechanism 3, and the first driving jacks 12 are used for driving the turning mechanism 3 to move along the direction of the hydraulic support 4 to be removed; a second driving jack 13 is provided inside the shield support 11, the second driving jack 13 being for driving the expansion or contraction of the shield support 11.
Specifically, the number of the shield supports 11 is preferably provided with a third shield support, a second shield support and a third shield support, which are sequentially arranged; the first driving jacks 12 are preferably three, namely a first driving jack, a second driving jack and a third driving jack; each first driving jack 12 is matched with each second driving jack 13 and each shield support 11, for example, a first shield support is matched with a first driving jack and a second driving jack, a second shield support is matched with a second first driving jack and a second driving jack, a third shield support is matched with a third first driving jack and a third second driving jack, in the using process, the second shield support and the third shield support are on the same horizontal plane, the first shield support slightly protrudes from the second shield support, and the specific moving process is as follows: firstly, the second driving jack is utilized to shrink and descend the second shield support, the third driving jack is utilized to shrink and descend the third shield support, then the second driving jack and the third driving jack are utilized to stretch and contract, and accordingly the second shield support and the third shield support are driven to move forwards, when the second driving jack and the first shield support are moved to be located on the same horizontal plane, the second driving jack is utilized to shrink the first shield support in a descending mode, then the first driving jack, the second driving jack and the third driving jack are simultaneously extended, at the moment, the steering mechanism moves towards the direction of the hydraulic support to be retracted, then the second shield support is lifted by the second driving jack, the third shield support is lifted by the third driving jack, and the third shield support is lifted by the first driving jack, so that the roof under the mine is supported.
In one embodiment of the present application, as shown in connection with fig. 5 to 8, the mobile support mechanism 2 provided in the embodiment of the present application includes: a strut assembly 21, a telescoping assembly 22, a lifting assembly 23 and a sliding mechanism. The telescopic assembly 22 is detachably connected with the pillar assembly 21, the lifting assembly 23 can be used for driving the telescopic assembly 22 to move along a first direction, the lifting assembly 23 is arranged on a sliding mechanism, and the sliding mechanism is used for driving the lifting assembly 23 to move along a second direction, and the first direction is perpendicular to the second direction. Wherein, the first direction is the direction indicated by the arrow in fig. 7, and the lifting assembly 23 drives the telescopic assembly 22 to perform lifting motion along the longitudinal direction in the drawing; the second direction is the direction indicated by the arrow in fig. 6, and the sliding mechanism drives the lifting assembly 23 to drive the telescopic assembly 22 to move along the horizontal direction.
Specifically, the number of the pillar assemblies 21 is provided in plural, and the plural pillar assemblies 21 are arranged in two rows, the distance between the two rows of pillar assemblies 21 is set to 0.75m or 0.875m, and the distance between each adjacent two pillar assemblies 21 is set to 1.2m.
The specific working process is as follows: the telescopic component 22 is connected with the strut component 21, the lifting component 23 can drive the strut component 21 to move along the first direction, and when the lifting component 23 moves upwards, the strut component 21 can be driven to be separated from the ground, so that the strut component 21 is separated from the ground; conversely, when the lifting assembly 23 moves downward, the pillar assembly 21 moves downward, so that the distance between the pillar assembly 21 and the bottom surface decreases. The lifting assembly 23 is arranged on the sliding mechanism, and the sliding mechanism drives the lifting assembly 23 to move along the second direction, so that the strut assembly 21 is driven to slide along the second direction; the movable supporting mechanism 2 moves the support column assembly 21 through the lifting assembly 23 and the sliding mechanism, so that the support column assembly 21 is not required to be carried manually, the labor intensity of workers is reduced, and the working efficiency is improved.
In one embodiment of the present application, as shown in connection with fig. 5-8, the embodiment of the present application provides for further comprising a guiding beam 26 and a pushing mechanism 25, the pushing mechanism 25 being adapted to push the guiding beam 26 in said second direction, the sliding mechanism being in sliding connection with the guiding beam 26.
Specifically, when the sliding mechanism drives the pillar assembly 21 to move along the length direction of the guide beam 26 for a certain distance, the sliding mechanism stops driving the pillar assembly 21 to move along the length direction of the guide beam 26, and at the same time, the pushing mechanism 25 pushes the guide beam 26 to move for the same distance, so that the sliding mechanism drives the pillar assembly 21 to move on the guide beam 26 all the time.
In a preferred implementation of the present embodiment, the telescoping assembly 22 includes a telescoping arm 221, a steering arm 222, and a connecting rod 223. The direction-adjusting arms 222 are hinged to the lifting assembly 23, the direction-adjusting arms 222 can rotate around the lifting assembly 23, a clamp 224 is arranged at one end, away from the lifting assembly 23, of each direction-adjusting arm 222, the number of the direction-adjusting arms 222 is multiple, each direction-adjusting arm 222 is hinged to a connecting rod 223, namely each direction-adjusting arm 222 is in rotary connection with the corresponding connecting rod 223, and then the connecting rods 223 on each direction-adjusting arm 222 can rotate relative to the direction-adjusting arms 222, and the adjacent connecting rods 223 are hinged.
The telescopic arm 221 is connected with the lifting assembly 23, one end of the telescopic arm 221 deviating from the lifting assembly 23 is connected with the connecting position of the adjacent connecting rod 223, and the telescopic arm 221 stretches to drive the connecting rod 223 to rotate, so that the support column assembly 21 is driven to be close to or far away from the guide beam 26. The extension and retraction direction of the extension and retraction arm 221 is the same as the longitudinal direction of the guide beam 26.
As shown in fig. 5-8, the lift assembly 23 is pivotally connected to a steering arm 222, each steering arm 222 being rotatable about the axis of the lift assembly 23. One end of each steering arm 222 is provided with a clamp, i.e. each steering arm 222 is connected to the corresponding strut assembly 21 by a clamp 224, and the clamp 224 is detachably connected to the strut assembly 21. The lifting assembly 23 is hinged with a steering arm 222, and the steering arm 222 can be connected with the strut assemblies 21 at most. I.e. the lifting assembly 23 can simultaneously drive the individual column assemblies 21 up or down. Each direction-adjusting arm 222 is hinged with a connecting rod 223, and every two adjacent connecting rods 223 are hinged. The telescopic arm 221 is connected with the lifting assembly 23, one end of the telescopic arm 221 deviating from the lifting assembly 23 is connected with the connecting position of the two connecting rods 223 adjacent to the left, when the telescopic arm 221 works, the telescopic end of the telescopic arm 221 stretches out, the distance between the connecting position of the two connecting rods 223 adjacent to the left and the connecting position of the two connecting rods 223 adjacent to the right increases, so that each steering arm 222 swings towards the direction close to the guide beam 26, and each steering arm 222 swings to drive the corresponding support column assembly 21 to move towards the direction close to the guide beam 26.
Specifically, the number of the connection points of the adjacent connection bars 223 in the direction along the length of the guide beam 26 is 2, which are called a first connection bar connection point and a second connection bar connection point, respectively. When the telescopic end of the telescopic arm 221 stretches out leftwards, the telescopic arm 221 pushes the connecting position of the first connecting rod leftwards, at this time, the distance between the connecting position of the first connecting rod and the connecting position of the second connecting rod increases, and at this time, each connecting rod 223 drives the corresponding direction-adjusting arm 222 to swing towards the side of the guide beam 26, and the direction-adjusting arm 222 and the pillar assembly 21 are clamped by the clamp 224, namely, the telescopic arm 221 can drive the pillar assembly 21 to draw close towards the side of the guide beam 26. When the telescopic ends of the telescopic arms 221 retract rightward, the distance between the connection positions of the first connecting rod and the second connecting rod is reduced, and each connecting rod 223 drives the corresponding direction adjusting arm 222 to swing to the side far away from the guide beam 26, that is, the telescopic arms 221 can drive the strut assembly 21 to move to the side far away from the guide beam 26.
For convenience of description, the strut assemblies 21 of the upper row are in order from left to right: a first strut assembly, a second strut assembly, a third strut assembly, a fourth strut assembly, a fifth strut assembly, a sixth strut assembly and a seventh strut assembly; the strut assemblies of the following row are sequentially from left to right: eighth, ninth, tenth, eleventh, twelfth, thirteenth and fourteenth strut assemblies.
Specifically, when the telescopic end of the telescopic arm 221 is extended, the first, second, eighth and ninth strut assemblies are moved in a direction approaching the guide beam 26, and at this time, the distance between the first and eighth strut assemblies and the distance between the second and ninth strut assemblies are reduced, and the distance between the first and second strut assemblies and the distance between the eighth and ninth strut assemblies are increased.
When the strut assembly 21 is moved, the telescopic assembly 22 folds the first strut assembly, the second strut assembly, the eighth strut assembly and the ninth strut assembly, the lifting assembly 23 drives the first strut assembly, the second strut assembly, the eighth strut assembly and the ninth strut assembly to lift, and the sliding mechanism can drive the first strut assembly, the second strut assembly, the eighth strut assembly and the ninth strut assembly to move rightward between the two rows of strut assemblies 21 along the length direction of the guide beam 26, and stop moving when moving between the seventh strut assembly and the fourteenth strut assembly. The pushing mechanism 25 pushes the guide beam 26 to move rightward, and when one end of the guide beam 26 against the pushing mechanism 25 moves between the third pillar assembly 21 and the tenth pillar assembly 21, the end of the guide beam 26 facing away from the pushing mechanism 25 is located on the right side of the seventh pillar assembly 21 (the side of the first pillar assembly 21 facing away from the sixth pillar assembly 21). The sliding mechanism drives the first, second, eighth and ninth strut assemblies to continue to move rightward along the length direction of the guide beam 26, and stops moving when the first strut assembly moves to the right side of the seventh strut assembly and the eighth strut assembly moves to the right side of the fourteenth strut assembly.
Preferably, the sliding mechanism stops moving when the first strut assembly moves to the right of the seventh strut assembly and 21.2m from the seventh strut assembly, and the eighth strut assembly moves to the right of the fourteenth strut assembly and 21.2m from the fourteenth strut assembly.
In this embodiment, positioning members 251 are disposed on both sides of the pushing mechanism 25, and the positioning members 251 are connected to the pushing mechanism 25 through chains 253.
For convenience of description, the positioning members 251 on two sides of the pushing mechanism 25 are respectively referred to as a first positioning member and a second positioning member, when in implementation, the first positioning member is hooked on the third pillar assembly, the second positioning member is hooked on the tenth pillar assembly, and the first positioning member and the second positioning member are both connected with the pushing mechanism 25 through the chain 253. So configured, when the pushing mechanism 25 pushes the guide beam 26 to move, the pushing mechanism 25 can better apply pushing force to the guide beam 26.
When the sliding mechanism moves the first pillar assembly, the second pillar assembly, the eighth pillar assembly and the ninth pillar assembly to the right side of the seventh pillar assembly, and the pushing mechanism 25 pushes the guide beam 26 to move rightward, after the end of the guide beam 26 opposite to the pushing mechanism 25 moves between the third pillar assembly and the tenth pillar assembly, the worker moves the pushing mechanism 25 rightward to approach the guide beam 26, and then can continue to push the guide beam 26 to move rightward, and at the same time, the worker hooks the first positioning member on the fifth pillar assembly and hooks the second positioning member on the twelfth pillar assembly.
In the fully-mechanized coal mining face retracting sector supporting device provided by the embodiment, the sliding mechanism comprises a first sliding component 24, a second sliding component 27 and a sliding groove 243; the first sliding component 24 and the second sliding component 27 are respectively arranged at two sides of the guide beam 26, one side of the sliding groove 243 is connected with the first sliding component 24, and the other side is connected with the second sliding component 27; the chute 243 is fastened on the guide beam 26 and can slide along the length direction of the guide beam 26, the lifting assembly 23 is arranged on the chute 243, and the lifting assembly 23 is in sliding fit with the guide beam 26 through the chute 243.
Specifically, the first sliding component 24 is located at one side of the guide beam 26 and is connected to the sliding groove 243, and the first sliding component 24 can drive the sliding groove 243 to move rightward along the length direction of the guide beam 26, i.e. the first sliding component 24 can drive the pillar component 21 to move rightward along the length direction of the guide beam 26. The sliding groove 243 is fastened on the guiding beam 26, and the contact surface between the sliding groove 243 and the guiding beam 26 is a smooth surface, so as to reduce the friction between the sliding groove 243 and the guiding beam 26. The second sliding component 27 is located at the other side of the guiding beam 26 and connected to the sliding groove 243, and the second sliding component 27 can drive the sliding groove 243 to move leftwards along the length direction of the guiding beam 26.
In the process of moving the strut assembly 21, after the first sliding assembly 24 moves the first strut assembly, the second strut assembly, the eighth strut assembly and the ninth strut assembly to the right side of the seventh strut assembly, the lifting assembly 23 descends, so that the first strut assembly, the second strut assembly, the eighth strut assembly and the ninth strut assembly fall onto the ground, the first strut assembly, the second strut assembly, the eighth strut assembly and the ninth strut assembly are detached from the clamp 224, and the second sliding assembly 27 drives the sliding groove 243 to drive the lifting assembly 23 and the telescopic assembly 22 to move leftwards along the length direction of the guide beam 26, and continues to move the third strut assembly, the fourth strut assembly, the tenth strut assembly and the eleventh strut assembly to the right side of the second strut assembly, so as to sequentially perform cyclic operation.
The first sliding assembly 24 comprises a first sliding jack 241, one end of the first sliding jack 241 is fixedly connected with the first positioning column 225, a first pulley 242 is arranged at the other end, and a first fixing piece is arranged at one end of the first sliding jack 241 connected with the first positioning column 225; the first pulley is wound with a first steel wire rope, one end of the first steel wire rope is connected with the first fixing piece, and the other end of the first steel wire rope is connected with the sliding groove 243.
When the pushing end of the first sliding jack 241 moves rightward along the length direction of the guide beam 26, the first pulley 242 moves rightward at this time, and the first pulley 242 rotates in a clockwise direction to pull the slide groove 243 to move rightward along the length direction of the guide beam 26.
The second sliding assembly 27 comprises a second sliding jack 271, one end of the second sliding jack 271 is fixedly connected with the second positioning column 226, a second pulley 272 is arranged at the other end, and a second fixing piece is arranged at one end of the second sliding jack 271 connected with the second positioning column 226; the second pulley 272 is provided with a second wire rope, one end of which is connected with the second fixing member, and the other end is connected with the chute 243.
When the pushing end of the second sliding jack 271 moves leftward along the length direction of the guide beam 26, the second pulley 272 moves leftward at this time, and the second pulley 272 rotates counterclockwise to pull the chute 243 leftward along the length direction of the guide beam 26.
When the first sliding jack 241 pulls the sliding groove 243 to move rightward, the pushing end of the first sliding jack 241 is in the extended state, and the pushing end of the second sliding jack 271 is in the retracted state. When the second sliding jack 271 pulls the chute 243 to move leftward, the pushing end of the second sliding jack 271 is in a telescopic state, and the pushing end of the first sliding jack 241 is in a retracted state.
It should be noted that, the first positioning column 225 and the second positioning column 226 are both fixed, one end of the first sliding jack 241 is connected to the first positioning column 225, one end of the second sliding jack 271 is connected to the second positioning column 226, that is, when the pushing mechanism pushes the guiding beam 26 to move rightward, the guiding beam 26 moves rightward relative to the sliding groove 243, and the sliding mechanism does not move rightward along with the guiding beam 26.
After the pushing mechanism pushes the guide beam 26 rightward for a certain distance, the worker can move both the first positioning column 225 and the second positioning column 226 rightward for the same distance as the guide beam 26, so that the first positioning column 225 and the second positioning column 226 are respectively located at two ends of the guide beam 26.
In this embodiment, the pillar assembly 21 includes a telescopic rod 211, a protection beam 212 and a base plate 213, the telescopic rod 211 is hinged to the protection beam 212, the protection beam 212 can rotate around the axis of the telescopic rod 211, the protection beam 212 abuts against the fully-mechanized coal mining face, and the protection beam 212 can increase the contact area between each telescopic rod 211 and the fully-mechanized coal mining face so as to enhance the supporting effect. The base plate 213 is arranged at one end of the telescopic rod 211, which is away from the protection beam 212, and the telescopic rod 211 is located on the ground through the base plate 213; the clamp 224 is clamped with the telescopic rod 211, and the clamp 224 is detachably connected with the telescopic rod 211.
Specifically, one strut assembly 21 includes one telescopic rod 211, and since the number of strut assemblies 21 is plural, that is, the number of telescopic rods 211 is plural, each telescopic rod 211 is hinged with a protection beam 212, and one end of each telescopic rod 211 facing away from the corresponding protection beam 212 is provided with a base plate 213.
When the pillar assembly 21 needs to be moved, the height of the telescopic rod 211 is reduced, and the protection beam 212 is rotated, so that the length direction of the protection beam 212 is consistent with the moving direction of the pillar assembly 21, and the pillar assembly 21 is convenient to be moved.
In a preferred implementation manner of this embodiment, the pushing mechanism includes a limiting member 252 and a pushing jack, the pushing jack is disposed on the limiting member 252, the pushing jack is used for pushing the guide beam 36 to move along the second direction, the limiting member 252 is in contact with the first positioning column 225, the positioning members 251 are respectively located on two sides of the limiting member 20, and the positioning members 251 are connected with the limiting member 20 through the chains 253.
Preferably, the length of the limiting member 252 is greater than the distance between the outermost sides of the two first positioning columns 225, so that the limiting member 252 and the positioning members 251 are more conveniently connected through the chains 253, that is, part of the chains 253 are not blocked by the first positioning columns 225, and the whole chain 253 between the limiting member 252 and the positioning members 251 is in a straightened state. The pushing end of the pushing jack is propped against the guide beam 26.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (4)
1. A fully mechanized coal face retraction system for retracting a hydraulic mount, comprising: the device comprises a turning mechanism, a driving mechanism and a movable supporting mechanism;
the turning mechanism is connected with the driving mechanism, the driving mechanism is used for driving the turning mechanism to move along the arrangement direction of the hydraulic support, and the turning mechanism is used for retracting the hydraulic support; the movable supporting mechanism is arranged on one side of the hydraulic support to be removed, and when the hydraulic support is removed, the movable supporting mechanism can move to the position of the removed hydraulic support;
the turning mechanism includes: the buffer table piece, the transition piece and the traction assembly;
the slow platform piece is connected with the transition piece, the slow platform piece is arranged close to one side of the hydraulic support, the transition piece is far away from one side of the hydraulic support, the traction component is arranged on one side of the transition piece and far away from the slow platform piece, and the traction component is used for traction and steering the hydraulic support;
the traction assembly comprises a first driving piece, a track, a first sliding block, a movable pulley, a traction rope and a mounting seat;
one end of the first driving piece is fixed on the mounting seat, the other end of the first driving piece is fixedly connected with the first sliding block, the movable pulley is arranged on the first sliding block, and the first driving piece can drive the first sliding block to move on the track;
one end of the traction rope is fixed on the mounting seat and can bypass the movable pulley to be connected with the hydraulic support;
the movable supporting mechanism comprises a support column assembly, a telescopic assembly, a lifting assembly and a sliding mechanism;
the telescopic assembly is connected with the support column assembly, the lifting assembly is used for driving the telescopic assembly to move along a first direction, the lifting assembly is arranged on the sliding mechanism, the sliding mechanism is used for driving the lifting assembly to move along a second direction, and the first direction is perpendicular to the second direction;
the sliding mechanism is connected with the guide beam in a sliding way;
positioning pieces are arranged on two sides of the pushing mechanism, and the positioning pieces are connected with the pushing mechanism through chains;
the sliding mechanism comprises a first sliding component, a second sliding component and a sliding chute;
the first sliding component and the second sliding component are respectively arranged at two sides of the guide beam, one side of the chute is connected with the first sliding component, and the other side of the chute is connected with the second sliding component;
the chute is buckled on the guide beam, and can slide along the length direction of the guide beam, and the lifting assembly is arranged on the chute.
2. The fully mechanized coal face retraction system of claim 1 wherein the drive mechanism includes a shield support, a first drive jack, and a second drive jack; the first driving jack is arranged between the shield support and the turning mechanism and is used for driving the turning mechanism to move along the direction of the hydraulic support to be removed; the second driving jack is arranged inside the shield support and is used for driving the shield support to extend or retract.
3. The fully mechanized coal face retraction system of claim 1 wherein the steering mechanism further comprises a first safety shield assembly; the first safety protection assembly is arranged at one end of the transition piece and is far away from the driving mechanism, and the first safety protection assembly is used for preventing the hydraulic support from sliding out of the track; the first safety protection component comprises a second driving piece and a connecting rod, and the second driving piece can drive the connecting rod to do linear motion.
4. The fully mechanized coal face retraction system of claim 1 wherein the steering mechanism further comprises a second safety shield assembly; the second safety protection assembly is arranged on one side of the transition piece and far away from the driving mechanism;
the second safety protection assembly comprises a driving assembly, a limiting rod, a first vertical rod, a second vertical rod, a third vertical rod and a chassis;
the first vertical rod, the second vertical rod and the third vertical rod are all arranged on the chassis; the first vertical rod and the second vertical rod are arranged at intervals along the arrangement direction of the hydraulic support, and the second vertical rod and the third vertical rod are arranged at intervals perpendicular to the arrangement direction of the hydraulic support;
one end of the driving component is arranged on the first vertical rod, the other end of the driving component is connected with the limiting rod, and the driving component is used for driving the limiting rod to rotate along the horizontal direction;
the third vertical rod is provided with a groove, and the groove is used for supporting the limiting rod.
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| CN201910298914.3A CN109882219B (en) | 2019-04-15 | 2019-04-15 | Fully mechanized mining face retraction system |
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| CN201910298914.3A CN109882219B (en) | 2019-04-15 | 2019-04-15 | Fully mechanized mining face retraction system |
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| CN109882219A CN109882219A (en) | 2019-06-14 |
| CN109882219B true CN109882219B (en) | 2024-02-27 |
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| CN112761698A (en) * | 2020-12-31 | 2021-05-07 | 中煤科工开采研究院有限公司 | Hydraulic support withdrawing device |
| CN112761696A (en) * | 2020-12-31 | 2021-05-07 | 中煤科工开采研究院有限公司 | Hydraulic support withdrawing device |
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