CN114017052B - Support dismantling vehicle capable of automatically drilling - Google Patents
Support dismantling vehicle capable of automatically drilling Download PDFInfo
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- CN114017052B CN114017052B CN202111183826.2A CN202111183826A CN114017052B CN 114017052 B CN114017052 B CN 114017052B CN 202111183826 A CN202111183826 A CN 202111183826A CN 114017052 B CN114017052 B CN 114017052B
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- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 230000008093 supporting effect Effects 0.000 claims abstract description 154
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- 230000000694 effects Effects 0.000 description 9
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- 238000009434 installation Methods 0.000 description 8
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/04—Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
- E21B15/045—Hydraulic, pneumatic or electric circuits for their positioning
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
- E21D15/606—Devices for withdrawing props or chocks the props being moved systematically
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/56—Reuse, recycling or recovery technologies of vehicles
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
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Abstract
The invention relates to the technical field of roadway support, and discloses a support dismantling vehicle capable of automatically drilling. The second bracket is connected with the second vehicle body; the two second slide ways are arranged at intervals along the width direction of the second vehicle body; the second nut sliding block is arranged in the second slideway; the second screw rod is arranged in the second slideway and is in threaded fit with the second nut slide block; the second driving device is arranged at one end of the second slideway and connected with the second lead screw; the mounting arm is used for dismounting the supporting shed frame from the roadway; the drill frame is rotatably arranged on the second vehicle body. The invention can realize automatic disassembly of the supporting shed frame and automatic drilling of anchor bolt supporting operation, realizes automation and no-man during working face tunneling and is beneficial to improving the construction efficiency.
Description
Technical Field
The invention relates to the technical field of roadway support, in particular to a support dismounting vehicle capable of automatically drilling.
Background
The existing mechanical excavation of the rectangular roadway generally adopts an excavation method along with excavation and support, a large number of workers are required to work cooperatively on the roadway working surface, and the workers are all in extremely severe working environment. In mines, particularly in mine driving working faces, the environment is severe, dust, heat damage, noise and toxic and harmful gas form four hazards, the health of workers is seriously threatened, and various occupational diseases, pneumoconiosis, deafness, skin diseases, rheumatism, nervous system diseases and the like are caused.
In addition, in the existing rectangular roadway driving construction process, the roadway supporting work is the main reason for restricting the realization of automation and unmanned operation. At present, in a common bolting mode, the bolting work is still difficult to realize automation temporarily, although some equipment of manufacturers is tested, the failure rate is high, and the bolting work is not popularized on a large scale at present.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems: at present, supporting operation of a roadway working face needs a large number of workers to work in a cooperative mode, automation is difficult to achieve, efficiency is low, the workers are in extremely severe working environments, and health of the workers is seriously threatened.
The present invention is directed to solving, at least in part, one of the technical problems in the related art.
Therefore, the embodiment of the invention provides a support dismantling vehicle capable of automatically drilling, which comprises a second vehicle body, a second support, a second slideway, a second nut slide block, a second lead screw, a second driving device, a mounting arm and a drill frame. The second bracket is connected with the second vehicle body in a liftable manner; the second slide ways are connected with the second support and extend along the length direction of the second vehicle body, the number of the second slide ways is two, and the two second slide ways are arranged at intervals along the width direction of the second vehicle body; the second nut sliding block is slidably arranged in the second slideway, and at least part of the second nut sliding block is positioned outside the second slideway; the second lead screw is rotatably arranged in the second slide way along the length direction of the second slide way, and is in threaded fit with the second nut slide block; the second driving device is arranged at one end of the second slideway and connected with the second lead screw, and the second driving device is used for driving the second lead screw to rotate and driving the second nut sliding block to slide along the second slideway; the mounting arm is used for dismounting the supporting shed frame from the roadway; the drill frame is rotatably arranged on the second vehicle body.
The support dismantling vehicle provided by the invention can realize automatic dismantling of the support shed frame and automatic drilling of anchor rod support operation, thereby realizing automation and unmanned tunneling of a working face, avoiding support work of personnel in an environment full of dust and noise, reducing the risk of occupational diseases of the personnel, and being beneficial to improving the construction efficiency and saving the labor cost.
In some embodiments, the mounting arm includes a large arm, a small arm, a large arm tilt cylinder, and a small arm tilt cylinder. The large arm is telescopic, and the first end of the large arm is rotatably connected with the second vehicle body; the small arm is telescopic, the first end of the small arm is rotatably connected with the second end of the large arm, at least two supporting hands are arranged on the small arm, and the supporting hands are suitable for being detachably connected with the supporting shed frame; the first end of the large arm tilting cylinder is rotatably connected with the second vehicle body, and the second end of the large arm tilting cylinder is rotatably connected with the large arm; the first end of the small arm tilting oil cylinder is rotatably connected with the large arm, and the second end of the small arm tilting oil cylinder is rotatably connected with the small arm.
In some embodiments, the mounting arm further comprises a large arm telescoping cylinder and a small arm telescoping cylinder. The large arm comprises a first large arm and a second large arm, the first large arm is slidably arranged in the second large arm, the large arm telescopic cylinder is arranged in the large arm, the first end of the large arm telescopic cylinder is connected with the first large arm, and the second end of the large arm telescopic cylinder is connected with the second large arm; the small arm comprises a first small arm and a second small arm, the first small arm can be arranged in the second small arm in a sliding mode, the small arm telescopic cylinder is arranged in the small arm, the first end of the small arm telescopic cylinder is connected with the first small arm, and the second end of the small arm telescopic cylinder is connected with the second small arm.
In some embodiments, the brace includes a mount, a first support, a second support, a first pull rod, a second pull rod, and an adjustment rod. The first end of the first supporting piece and the first end of the second supporting piece are both rotatably connected with the mounting seat; the first end of the first pull rod is rotatably connected with the second end of the first supporting piece, and the first end of the second pull rod is rotatably connected with the second end of the second supporting piece; one end of the adjusting rod is rotatably connected with the second end of the first pull rod and the second end of the second pull rod respectively, and the adjusting rod penetrates through the mounting seat and can move along the length direction of the mounting seat.
In some embodiments, the installation arm further comprises an unlocking assembly, the unlocking assembly comprises an unlocking cylinder and an unlocking rod, the unlocking cylinder is arranged on the outer wall of the small arm along the length direction of the small arm, one end of the unlocking cylinder is connected with the small arm, and the other end of the unlocking cylinder is connected with the unlocking rod.
In some embodiments, the second bracket includes a connection plate, a first lift cylinder, and a second lift cylinder. One end of the connecting plate is rotatably connected with the second vehicle body, and the other end of the connecting plate is rotatably connected with the second slide way; one end of the first lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the first lifting oil cylinder is rotatably connected with the first end of the second slide way; one end of the second lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the second lifting oil cylinder is rotatably connected with the second end of the second slideway.
In some embodiments, the second driving device includes a second motor and a second speed reducer, and the second motor is in transmission connection with one end of the second lead screw through the second speed reducer.
In some embodiments, the drill rig comprises a support frame, a top plate, and a drill box. The two support frames are respectively fixed on two sides of the second vehicle body; the top plate is provided with a positioning hole, the top plate is connected with the upper end of the support frame, and the top plate can move along the length direction of the support frame; the drill box is connected with the lower end of the support frame and is used for connecting a drill rod or an anchor rod.
Drawings
Fig. 1 is an overall complete set schematic of the present invention.
Fig. 2 is a structural view of the rack mount carriage of the present invention, in which the first rack is not shown.
Fig. 3 is a structural view of the rack mount carriage of the present invention, in which the mounting arm is not shown.
Fig. 4 is a partially enlarged view of fig. 3.
Fig. 5 is a structural view of the truck for disassembling stand according to the present invention.
Fig. 6 is a structural view of the mounting arm in the present invention.
Fig. 7 is a structural view of the brace of the present invention.
Figure 8 is a schematic view of the present invention showing the erection of the timbering shelter.
Fig. 9 is a schematic view of the support dismantling vehicle of the present invention after dismantling the support frames from the tunnels.
Figure 10 is a schematic illustration of the transfer process of the support shelter of the present invention.
Fig. 11 is a top view of fig. 10.
Fig. 12 is a partially enlarged view at G in fig. 10.
Fig. 13 is a structural view of a support shed in the present invention.
Fig. 14 is a force analysis diagram of the supporting frame in the present invention when it is installed.
FIG. 15 is a force analysis diagram of the supporting shed of the present invention when the top beam is pressed.
FIG. 16 is a structural view of the upper receiving boot of the present invention.
Fig. 17 is a front view of the support post of the present invention in a collapsed state.
Figure 18 is a top view of the support post of the present invention in a collapsed state.
Figure 19 is a rear view of the support post of the present invention in a collapsed condition.
Fig. 20 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 17.
Fig. 21 is a cross-sectional view taken along line B-B of fig. 17.
Fig. 22 is a sectional view taken along line C-C of fig. 17.
Fig. 23 is a partial enlarged view at D in fig. 21.
Fig. 24 is a sectional view taken along line E-E of fig. 18.
Fig. 25 is a partial enlarged view at F in fig. 24.
Fig. 26 is a schematic view of the assembly of the detent pin and the detent pin guide lever of the present invention.
Figure 27 is a block diagram of the support post of the present invention after deployment.
Fig. 28 is an enlarged partial view of the bottom portion of fig. 17.
Fig. 29 is an enlarged partial view of the bottom portion of fig. 20.
FIG. 30 is a perspective view of the present invention after the attachment plate is secured to the foot body.
FIG. 31 is a schematic view of the construction of the large arm of the present invention.
FIG. 32 is a schematic view of the structure of the small arm of the present invention.
Reference numerals: 100. supporting a shed frame; 200. a bracket mounting vehicle; 300. a support dismantling vehicle; 1. a top beam; 2. a flexible pad; 3. a shoulder beam; 4. connecting upper boots; 401. a connecting portion; 402. connecting the upper part; 403. a barb; 5. an upper support leg; 501. a first through hole; 6. a lower leg; 601. a notch; 7. a first rotating shaft; 8. a second rotating shaft; 9. a ratchet bar; 10. a second return spring; 11. a pawl; 12. a housing; 13. a joystick; 1301. a chute; 14. a connecting rod; 15. a pin shaft; 16. a first stopper; 17. a first return spring; 18. a locking pin; 1801. a second through hole; 19. a locking pin guide lever; 20. a tension rod; 21. tensioning the spring; 22. a footing body; 2201. anti-skid nails; 23. connecting the disc; 24. a foot retracting slider; 2401. pushing the plate; 2402. a slider body; 25. a footing connecting rod; 26. a third rotating shaft; 27. a slide rail; 28. a third return spring; 29. a third return spring guide bar; 30. a first vehicle body; 31. a second vehicle body; 32. a first bracket; 33. a first slideway; 34. a first lead screw; 35. a first motor; 36. a first decelerator; 37. a mounting arm; 38. a first nut runner; 39. a second slideway; 40. a second nut block; 41. a second lead screw; 42. a connecting plate; 43. a first lift cylinder; 44. a second lift cylinder; 45. a top plate; 46. a support frame; 47. drilling a box; 48. a large arm; 4801. a first large arm; 4802. a second large arm; 4803. a large arm telescopic cylinder; 49. a small arm; 4901. a first small arm; 4902. a second small arm; 4903. a small arm telescopic cylinder; 50. a large arm tilt cylinder; 51. a small arm tilt cylinder; 52. supporting a hand; 5201. a mounting base; 5202. a first support member; 5203. a second support member; 5204. a first pull rod; 5205. a second pull rod; 5206. adjusting a rod; 53. an inner support hole; 54. a fourth rotating shaft; 55. unlocking the cylinder; 56. an unlocking lever; 57. side walls of the roadway; 58. a second stopper; 59. a second driving device.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
Referring to fig. 1 to 32, the present embodiment provides a roadway supporting apparatus including a supporting shed 100, a rack-mounting vehicle 200, and a rack-dismounting vehicle 300. The supporting shed frame 100 is detachably supported in the roadway; the rack mounting vehicle 200 comprises a first vehicle body 30 (which may be a heading machine) and a mounting assembly mounted on the first vehicle body 30, wherein the mounting assembly is used for supporting the supporting shed frame in a roadway; the support dismantling vehicle 300 comprises a second vehicle body 31 and a dismantling assembly installed on the second vehicle body 31, wherein the dismantling assembly is used for dismantling the support shed frame 100 from a roadway and transferring the support shed frame to the support dismantling vehicle 200.
The roadway supporting device provided by the invention can realize supporting along with excavation and automatic supporting, realizes automation and no-man during working face excavation, avoids the supporting work of personnel in the environment full of dust and noise, and reduces the risk of occupational disease of the personnel.
In this embodiment, the supporting shed frame includes a top beam 1, two shoulder beams 3, two supporting columns and two upper receiving shoes 4. The top beam 1 is suitable for abutting against the top of the roadway; the two shoulder beams 3 are respectively arranged at two ends of the top beam 1, and first ends of the shoulder beams 3 are hinged with the end part of the top beam 1 through a first rotating shaft 7; one end of each supporting column is hinged with the second end of each shoulder beam through a second rotating shaft 8, the two supporting columns are respectively connected with the two shoulder beams, the supporting columns can stretch, and the overall height of the supporting shed frame can be adjusted through stretching of the supporting columns; the upper shoe 4 is also hinged to the second end of the shoulder beam 3 through a second rotating shaft 8, the upper shoe 4 is located on the outer side of the shoulder beam 3 and the supporting column, and the upper shoe 4 is suitable for abutting against the side wall of the roadway. The top beam 1, the shoulder beam 3 and the support column are always in the same plane, so that the axes of the first rotating shaft 7 and the second rotating shaft 8 are parallel to each other.
Referring to fig. 8, when in use, the top beam 1 is in contact with the top of the roadway and keeps a compacted state through the mounting assembly, the upper-connecting boots 4 are in contact with the side walls 57 of the roadway and keep the compacted state, the supporting columns are extended and connected to the bottom, and the integral supporting shed frame forms an approximately omega-shaped supporting state. When the supporting shed frame is in a supporting state, the shoulder beam and the top beam are in a trapezoidal posture, so that when the top beam is pressed, the pressure from the top can generate positive pressure component force to the upper shoe through the shoulder beam, the positive pressure component force can enable the upper shoe and the roadway side shoe to generate upward friction resistance, the friction resistance is positively related to the top pressure, the self-energizing effect is achieved, the pressure to the supporting column below is reduced, the requirement on the supporting force of the supporting column is lowered, and therefore the light and handy supporting column structure can be achieved, and the occupied volume is reduced.
According to the supporting state and the using process of the supporting shed frame 100, the stress analysis is carried out on the supporting shed frame, the stress analysis in the installation process is shown in fig. 14, an included angle between a supporting column and a roadway side wall 57 is set as alpha, and an included angle between a shoulder beam 3 and the roadway side wall 57 is set as beta.
In order to facilitate calculation, influence of the distribution position of the friction force of the roadway side wall 57 is ignored, the friction force of the roadway side wall 57 on the butt-joint upper shoe is translated to the hinge central point, and stress decomposition and synthesis are carried out according to the vertical direction and the horizontal direction.
Vertical component force of supporting force:
F 11 ＝F 1 cos α, wherein F 1 Supporting force for the supporting column;
horizontal component force of supporting force:
F 12 ＝F 1 ·sinα
the counterforce of the shoulder beam is positive pressure on the side wall of the roadway:
F 112 ＝F 11 ·tgβ＝F 1 ·cosα·tgβ
the downward friction force of the tunnel side wall butt joint shoe during initial support:
F μ1 ＝(F 12 +F 112 )·μ 1 ＝F 1 (sinα+cosα·tgβ)μ 1
the primary supporting force of the supporting shed frame during primary supporting:
F first stage ＝F 11 -F μ1 ＝F 1 ·cosα-F 1 (sinα+cosα·tgβ)μ 1
＝F 1 (cosα-μ 1 ·sinα-μ 1 ·cosα·tgβ)
When the top beam is pressed, the stress analysis of the supporting shed frame is as shown in fig. 15, and at this time, half of the top beam pressure (the two sides of the supporting shed frame are symmetrically designed) is set as F 2 Its supporting force F with the supporting shed frame 11 The new balance is obtained under the action of friction force, and the friction force of the tunnel side wall butt joint upper shoe is upward and is set to be F μ2 At this time:
F 11 ＝F 2 -F μ2
at this time, F 2 Acting force F on side wall of roadway by decomposing into shoulder beam 20 Because the stress decomposition angles of the upper and lower hinge points of the shoulder beam are the same and the acting force and the reacting force are the same, the positive pressure F is exerted on the side wall of the roadway 21 Comprises the following steps:
F 21 ＝F 2 ·tgβ
at this time, the supporting force F of the supporting shed frame 1 The component force of the top beam is the same as that of the initial support, but the top beam presses, the upper connecting shoe moves downwards, the friction force of the tunnel side upper connecting shoe is upward, in order to better utilize the friction force of the tunnel side upper connecting shoe, a barb structure can be arranged on the contact surface of the upper connecting shoe, so that the upward friction coefficient is different from the downward friction coefficient, as shown in figure 15, the downward friction coefficient is set to be mu 2 Then, the friction force of the tunnel side wall butt joint upper shoe at this time is as follows:
F μ2 ＝(F 12 +F 21 )·μ 2 ＝(F 1 ·sinα+F 2 ·tgβ)·μ 2
in addition, the first and second substrates are,
F 11 ＝F 2 -F μ2 ＝F 2 -(F 1 ·sinα+F 2 ·tgβ)·μ 2
due to F 11 ＝F 1 Cos α, i.e.
F 1 ·cosα＝F 2 -(F 1 ·sinα+F 2 ·tgβ)·μ 2
Solving to obtain:
F 1 ＝F 2 (1-μ 2 ·tgβ)/(cosα+μ 2 ·sinα)
as can be seen from the formula, the friction force between the upper receiving boot and the roadway side upper presses F along with the top plate 45 2 Is increased, a self-energizing effect is produced, when beta and alpha take appropriate values, F 1 Much less than F 2 That is, when the supporting shed frame provides a small supporting force, a great working resistance can be obtained. For example, β =40 °, α =3 °, μ 2 If =1 (empirical value), F 1 ≈0.15F 2 。
In some embodiments, the support canopy further comprises a flexible mat 2 provided on the top beam along the length of the top beam. The longitudinal section of the flexible cushion 2 is in an arch shape, and the thickness of the flexible cushion 2 is gradually reduced from the middle to two ends. The top of the supporting shed frame adopts a design and manufacturing mode of a flexible pad, so that when the top beam of the supporting shed frame is in a supporting state, the supporting load of the top beam is in arch distribution with relatively smaller two ends and relatively larger middle, and the supporting effect of the top beam on the roadway reaches the optimal state, so that the requirement on the initial supporting force of the supporting shed frame can be greatly reduced.
In specific implementation, the upper receiving boot 4 includes an upper receiving portion 402 and a connecting portion 401, the connecting portion 401 is hinged to the second end of the shoulder beam 3 through a second rotating shaft 8, a circular hole for the second rotating shaft 8 to pass through is formed in the connecting portion 401, and a barb 403 is formed on the upper receiving portion 402. When the supporting shed frame 100 is used, the barb 403 structure on the upper receiving part 402 is contacted with the roadway side wall 57, so that the friction coefficient of the downward sliding of the upper receiving shoe 4 is far greater than that of the upward sliding, and the self-energizing effect of the top beam 1 when the top beam is pressed is further enhanced.
The support column in this embodiment includes an upper leg 5, a lower leg 6 and a locking assembly. The inner part of the upper supporting leg is of a hollow structure, namely, a cavity for accommodating the lower supporting leg is formed in the upper supporting leg, and a ratchet bar 9 is arranged on the inner wall surface of the upper supporting leg; as a preferred embodiment, the ratchet bar 9 may be integrally formed with the upper leg. In addition, the ratchet bar 9 can be detachably connected with the upper leg, for example, the ratchet bar 9 can also be fixed with the inner wall of the upper leg by a connector such as a bolt. The lower support leg is slidably fitted in the upper support leg along the length direction of the upper support leg, and the lower support leg can be installed in a cavity of the upper support leg in an inserting manner during assembly.
The locking assembly is connected to the lower leg and includes a pawl 11, the pawl 11 being rotatable between an open position and a closed position. In the open position, the pawl 11 engages the ratchet 9 to lock the upper leg and the lower leg without relative sliding movement between the legs; in the closed position, the pawl 11 is separated from the ratchet bar 9, and the upper support leg and the lower support leg can slide relatively to each other, so that the telescopic adjustment of the support column is realized.
The support column in this embodiment realizes controllable extension and retraction between the upper support leg and the lower support leg by means of the cooperation of the pawl 11 and the ratchet bar 9, and can achieve a stable support effect. The support column provided by the invention can replace the traditional oil cylinder type support column, does not need to adopt a hydraulic oil cylinder for supporting, and avoids environmental pollution caused by oil leakage. Moreover, the mounting, dismounting and mounting process of the support column is simpler, manual connecting pipelines are not needed in comparison with a pressure oil cylinder support column, an auxiliary pump station is not needed, automation is easy to realize, and the support column has the advantages of light weight and easiness in carrying. In addition, when the support column is in a long-time support state, the support column does not have the support aging caused by leakage of hydraulic oil cylinder support columns, and therefore the support safety is improved.
The latch assembly further comprises a housing 12, an operating lever 13 and a connecting rod 14. The housing 12 is also disposed in the cavity of the upper leg, and one end of the housing 12 is connected to the upper end of the lower leg, such that the housing 12 and the lower leg move synchronously as the lower leg slides within the upper leg. One end of the operating lever 13 is located in the housing 12 and connected to the rear end of the connecting rod 14, and the operating lever 13 is slidable along the length of the housing 12 (which coincides with the length of the lower leg) to rotate the pawl 11 between the open and closed positions.
In specific implementation, a through hole for passing the operating lever 13 is formed in the top center of the housing 12, and the operating lever 13 is inserted into the through hole in the housing 12 and can slide in the through hole along the length direction of the lower leg. The cross-sectional shape of the operating lever 13 is designed to be non-circular (e.g., rectangular), and the shape of the through-hole of the housing 12 for passing the operating lever 13 therethrough is matched to the cross-sectional shape of the operating lever 13, thereby preventing the operating lever 13 from rotating about its axis. The connecting rod 14 is positioned in the shell 12, one end of the connecting rod 14 is hinged with the rod body of the operating rod 13, and the other end of the connecting rod 14 is hinged with the tail end of the pawl 11. The pawl 11 is at least partially located within the housing 12, and an end of the pawl 11 remote from the connecting rod 14 is adapted to engage with the ratchet bar 9. The pawl 11 is pivotally connected with the housing 12 in a rotatable manner, in the specific implementation, a pin hole penetrating through two side surfaces of the pawl 11 can be formed in the pawl 11, a pin shaft 15 is inserted into the pin hole in the pawl 11, two ends of the pin shaft 15 are fixed with the housing 12, and the pawl 11 can rotate around the pin shaft 15 under the pulling action of the connecting rod 14, so that the engagement and the separation between one end of the pawl 11, which is far away from the connecting rod 14, and the ratchet bar 9 are realized.
Referring to fig. 25, the two ratchets 9, the two pawls 11 and the two connecting rods 14 are all in one-to-one correspondence, the two ratchets 9 are oppositely arranged on the inner wall surface of the upper leg, when the two ratchets 9 are in the open position, the tail parts of the two pawls 11 are pressed against each other, and the two ratchets 9, the two pawls 11 and the two connecting rods 14 are symmetrically distributed on two sides of the operating rod 13. Two pawls 11 are connected with control rod 13 through two connecting rods 14 to realize that two pawls 11 open and shut in step, can guarantee through the manipulation to control rod 13 that two pawls 11 are in the locking or state of opening simultaneously, make two pawls 11 and two ratchet bars 9 atress simultaneously when the support column is worked, and its overall structure can play a balanced effect to the atress of two pawls 11 and two ratchet bars 9, thereby reduce the intensity requirement of pawl 11 and ratchet bar 9, and improve the stability and the security that the support column supported.
In some embodiments, the locking assembly further includes a first stop member 16 and a first return spring 17, and one end of the operating rod 13 extends to the outside of the housing 12 and is fixedly connected to the first stop member 16. The first return spring 17 is a compression spring, the first return spring 17 is sleeved outside the operating lever 13 between the first stop member 16 and the housing 12, one end of the first return spring 17 abuts against the outer wall surface of the housing 12, and the other end abuts against the first stop member 16.
The operating rod 13 can be operated to move up and down through the first stop member 16 when in use, so that the pawl 11 is engaged with and disengaged from the ratchet rack 9, and the specific principle is as follows: the operating rod 13 moves downwards by pressing the first stop piece 16, the first return spring 17 is compressed, the connecting rod 14 connected to the bottom of the operating rod 13 pushes the pawl 11 to rotate, one end of the pawl 11 close to the ratchet rack 9 rotates towards the operating rod 13, and simultaneously, the shell 12 and the lower leg have a downward movement tendency, so that the pawl 11 and the ratchet rack 9 can be easily separated, and finally, the pawl 11 moves to a closed position, and at the moment, the upper leg and the lower leg can relatively slide to realize the extension or shortening of the support column; after the support column is lengthened or shortened to a required length, the pressing force applied to the first stop member 16 is removed, then under the elastic force of the first return spring 17, the operating rod 13 slides upwards, the connecting rod 14 connected to the bottom of the operating rod 13 drives the pawl 11 to rotate, and finally, one end of the pawl 11 far away from the connecting rod 14 is clamped between the teeth of the ratchet rack 9, and one ends of the two pawls 11 are contacted with each other, so that the upper leg and the lower leg are locked with each other, and the support column cannot stretch or contract.
In some embodiments, the locking assembly further includes a locking pin 18, the locking pin 18 is connected to the operating rod 13 and penetrates through the housing 12 in a thickness direction of the housing 12 (a left-right direction indicated by an arrow G in fig. 22), the locking pin 18 is slidable in the thickness direction of the housing 12, the upper end of the upper leg is provided with a first through hole 501, and the locking pin 18 can be inserted into the first through hole 501 to relatively fix the lower leg of the upper leg. The locking pin 18 is provided with a second through hole 1801 opened along a radial direction thereof, the operating lever 13 penetrates through the second through hole 1801, and in order to ensure that the locking pin 18 can slide along a thickness direction of the housing 12, a dimension of the second through hole 1801 in a length direction of the locking pin 18 is larger than a dimension of the operating lever 13 in the length direction of the locking pin 18 (the same as a left-right direction indicated by an arrow G in fig. 22).
The locking assembly further comprises a locking pin guide rod 19, and a sliding groove 1301 is formed in the side wall of the operating rod 13 along the length direction of the operating rod 13. The locking pin guide rod 19 is fixedly connected with the locking pin 18, two opposite side surfaces of the locking pin 18 can be respectively provided with a guide rod installation hole penetrating through the second through hole 1801 during assembly, and the two locking pin guide rods 19 are installed in the corresponding guide rod installation holes in an interference fit mode. One end of the locking pin guide rod 19 is slidably fitted in the sliding groove 1301, as shown in fig. 23, an inclined surface inclined to the cross section of the operating rod 13 is arranged in the sliding groove 1301, when one end of the locking pin 18 is inserted into the first through hole 501 on the upper leg, the first stop member 16 is pressed to slide the operating rod 13 downwards, the inclined surface in the sliding groove 1301 is in contact with the locking pin guide rod 19 in the process, the locking pin 18 moves towards the direction away from the first through hole 501 under the interaction of the locking pin guide rod 19 and the inclined surface of the sliding groove 1301, and the locking pin 18 gradually separates from the first through hole 501, so that the locking pin 18 is unlocked and slid. The locking subassembly still includes second reset spring 10, second reset spring 10 cover is established in the outside of locking round pin 18, the week side of locking round pin 18 is equipped with the annular arch, the one end and the protruding counterbalance of annular of second reset spring 10 link to each other, the other end with the inner wall of casing 12 offsets. When the support column is contracted to the shortest state, the locking pin 18 automatically enters the first through hole 501 under the action of the elastic force of the second return spring 10, so that the upper and lower support legs are in a locking state, and the support column is more convenient to use through the arranged second return spring 10.
The support column according to the embodiment of the invention is further provided with a tensioning assembly consisting of a tensioning rod 20 and a tensioning spring 21, one end of the tensioning rod 20 is connected with the shell 12, the other end of the tensioning rod is connected with the upper end of the lower support leg, the tensioning spring 21 is sleeved on the outer side of the tensioning rod 20, one end of the tensioning spring 21 abuts against the shell 12, and the other end of the tensioning spring abuts against the lower support leg. When the supporting column works, the tensioning assembly can play a role in pre-tensioning and anti-loosening, and the stroke position of the supporting column has a certain buffering distance, so that the discrete locking characteristic of the pawl 11 and the ratchet bar 9 is adapted.
In some embodiments, the supporting shed frame further comprises a foot component rotatably connected with the lower end of the lower supporting leg, the foot can rotate to the state shown in fig. 19 when the supporting column is changed from the contraction state to the expansion state, the contact surface is increased through the foot component, the contact surface is prevented from being crushed, and meanwhile, a better supporting effect is achieved.
Referring to fig. 28 and 29, the foot assembly includes a foot body 22, a connecting plate 23, a foot-retracting slider 24 and a foot link 25. The connecting disc 23 is fixedly connected with the bottom foot body 22, and the connecting disc 23 is hinged with the lower end of the lower supporting leg through a third rotating shaft 26. The side of the foot body 22 facing away from the connecting disc 23 can be designed to be a cambered surface or a spherical surface, and the surface is provided with the anti-skid nails 2201 to improve the contact performance and achieve the anti-skid effect. The lower leg is provided with a slide rail 27, the foot-receiving slide block 24 is slidably arranged in the slide rail 27, and at least part of the foot-receiving slide block 24 is positioned at the outer side of the lower leg, so that the upper leg can be in contact with the foot-receiving slide block 24. One end of the foot connecting rod 25 is hinged with the connecting disc 23 through a fourth rotating shaft 54, and the other end of the foot connecting rod is hinged with the foot retracting slider 24. Because the foot connecting rod 25 and the lower leg are respectively hinged with different parts of the connecting disc 23, when the foot-closing sliding block 24 slides in the sliding rail 27, the foot connecting rod 25 can drive the foot body 22 to rotate.
Further, the foot-retracting slider 24 is composed of a slider body 2402 and a push plate 2401 which are connected, the slide rail 27 is arranged in the lower leg, the slider body 2402 is slidably arranged in the slide rail 27, the push plate 2401 is positioned at the outer side of the lower leg, a notch 601 communicated with the slide rail 27 is formed in the side surface of the bottom of the lower leg, and the push plate 2401 penetrates through the notch 601 to be fixed with the slider body 2402 in the slide rail 27. When the upper supporting leg and the lower supporting leg slide relatively, the upper supporting leg can push the push plate 2401 to move, and further drive the slider body 2402 to slide in the slide rail 27.
In this embodiment, the foot assembly further includes a third return spring 28, a third return spring guide rod 29 and a second stop member 58, one end of the third return spring guide rod 29 penetrates through one end of the slide rail 27 along the length direction of the slide rail 27 and is connected with the foot closing slider 24, and the other end of the third return spring guide rod 29 is connected with the second stop member 58. The third return spring 28 can be installed in two ways, wherein one way is that the third return spring 28 is sleeved on the third return spring guide rod 29, and one end of the third return spring 28 abuts against the second stop member 58, and the other end abuts against one end of the slide rail 27. Another way of mounting the third return springs 28 is that the third return springs 28 are mounted on one side of a third return spring guide bar 29, as shown in fig. 28, one third return spring 28 is respectively disposed on both sides of the third return spring guide bar 29, an upper end of each third return spring 28 contacts with the second stopper, and a lower end of each third return spring 28 contacts with an upper end of the slide rail 27.
When the support column shortens to the shortest state, the bottom of going up the landing leg contacts with push pedal 2401 and promotes push pedal 2401 a section distance of lapse, the slider that links to each other with push pedal 2401 equally slips a section distance of lapse downwards, third reset spring 28 is compressed under the effect of second backstop piece, thereby receive foot slider 24, foot connecting rod 25, connection pad 23 and link in proper order and make connection pad 23 rotate round third pivot 26, final footing body 22 is folded to the state that fig. 29 shows, convenient not only to use, and can practice thrift the space. When the support column extends, the lower end of the lower leg is separated from the push plate 2401, the second stop block is pushed to move upwards by the elastic force of the third return spring 28, the slide block connected with the second stop block through the third return spring guide rod 29 slides upwards, and the connecting disc 23 is pulled by the foot link 25 to rotate around the third rotating shaft 26, so that the foot body 22 rotates to the unfolded state (see fig. 27). When supporting the rack when using, footing body 22 is in the state of expanding, can guarantee from this that to have great area of contact between landing leg and the tunnel down, prevents that the contact surface from being crushed, provides better support effect.
The utility model provides a strut shed frame structural design is light and handy, and easily installation and dismouting can effectual improvement rectangle tunnel strut efficiency, can realize automatic installation and dismouting simultaneously to ensure that the staff is healthy, reduce the risk that the staff suffers from the occupational disease, reduce the number of dying because of the occupational disease.
Referring to fig. 2 and 3, the mounting assembly includes a first bracket 32, a first slideway 33, a first nut runner 38, a first lead screw 34, a first drive device and a mounting arm 37. The first brackets 32 are two mutually parallel and are respectively installed on two sides of the first vehicle body in the width direction, the bottom of the first bracket 32 is fixedly connected with the first vehicle body, and the first bracket 32 is mainly used as an installation carrier of a first slide rail 33; a first slide way 33 is mounted at the top of each first bracket 32, and the first slide way 33 extends along the length direction of the first vehicle body, namely the length direction of the first slide way 33 is consistent with the traveling direction of the first vehicle body; the first nut sliding block 38 is slidably arranged in the first slide way 33, a part of the first nut sliding block 38 is positioned outside the first slide way 33, and the part of the first nut sliding block 38 positioned outside the first slide way 33 is used for pushing the supporting shed frame to move; the first lead screw 34 is rotatably arranged in the first slideway 33 along the length direction of the first slideway 33, in order to realize rotatable connection between the first lead screw 34 and the first slideway 33 in specific implementation, two ends of the first lead screw 34 can be fixed with the first slideway 33 through a bearing seat, and the first lead screw 34 is in threaded fit with the first nut slider 38; the first driving device is arranged at one end of the first slideway 33 and is in transmission connection with the first lead screw 34, and the first driving device is used for driving the first lead screw 34 to rotate and driving the first nut sliding block 38 to slide along the first slideway 33; the mounting arms 37 of the mounting assembly may be releasably connected to the support frame, the mounting arms 37 of the mounting assembly being used to support the support frame in the roadway.
The first driving device is composed of a first motor 35 and a first speed reducer 36, and the first motor 35 is in transmission connection with one end of the first lead screw 34 through the first speed reducer 36. When the device is used, the first driving device drives the first lead screw 34 to rotate, the rotating first lead screw 34 drives the first nut sliding blocks 38 to move back and forth, the first nut sliding blocks 38 on the two first slide ways 33 move synchronously, and the supporting shed frame placed above the first slide ways 33 can be pushed to move. In order to prevent the coal cinder from falling into the first slideway 33, the opening of the first slideway 33 faces downward or towards either of the left and right sides, and the first nut runner 38 still needs to have a part extending above the first slideway 33.
Referring to fig. 5, the detaching assembly includes a second bracket, a second slide 39, a second nut runner 40, a second lead screw 41, a second driving device 59, and a mounting arm 37. The second bracket is connected with the second vehicle body, and the height of the second bracket can be adjusted in a lifting way; the second slide way 39 is fixed to the top of the second bracket, and the second slide way 39 extends along the length direction of the second vehicle body, that is, the length direction of the second slide way 39 coincides with the traveling direction of the second vehicle body in fig. 5. The number of the second slide ways 39 is two, and the two second slide ways 39 are arranged at intervals along the width direction of the second vehicle body; the second nut runner 40 is mounted in the second slideway 39 and can slide along the second slideway 39, and a part of the second nut runner 40 is positioned outside the second slideway 39; the second lead screw 41 is rotatably installed in the second slideway 39 along the length direction of the second slideway 39, and the second lead screw 41 is in threaded fit with the second nut slider 40; the second driving device 59 is installed at one end of the second slideway 39 and is in transmission connection with the second lead screw 41, and the second driving device 59 drives the second lead screw 41 to rotate and drives the second nut slider 40 to slide along the second slideway 39. In order to prevent the coal cinder from falling into the second slideway 39, the opening of the second slideway 39 faces downward or towards either side of the left and right sides, and the second nut slider 40 still needs to have a part extending above the second slideway 39. The mounting arms 37 of the stripper assembly are also releasably connectable to the support frame, the mounting arms 37 of the stripper assembly being used to remove the support frame from the roadway. The second driving device 59 includes a second motor and a second speed reducer, and the structure of the second driving device is the same as that of the first driving device, and the second motor is in transmission connection with one end of the second lead screw 41 through the second speed reducer.
Referring to fig. 6, the mounting arm 37 in the mounting assembly and the dismounting assembly is composed of a large arm 48, a small arm 49, a large arm tilt cylinder 50 and a small arm tilt cylinder 51. The large arm 48 is telescopic, and a first end of the large arm 48 is hinged with the first vehicle body or the second vehicle body. The small arm 49 is telescopic, the first end of the small arm 49 is hinged with the second end of the big arm 48, two supporting handles 52 are arranged on the small arm 49, and the supporting handles 52 are suitable for being detachably connected with the supporting shed frame. The first end of the large arm tilting cylinder 50 is hinged with the first vehicle body or the second vehicle body, and the second end of the large arm 48 tilting cylinder is hinged with the large arm 48. The first end of the small arm 49 tilting oil cylinder is hinged with the large arm 48, and the second end of the small arm 49 tilting oil cylinder is hinged with the small arm 49.
In this embodiment, the mounting arm 37 further comprises a large arm 48 telescopic cylinder and a small arm 49 telescopic cylinder. The large arm 48 comprises a first large arm 4801 and a second large arm 4802, the first large arm 4801 is slidably sleeved in the second large arm 4802, the large arm 48 telescopic cylinder is arranged in the large arm 48, a first end of the large arm 48 telescopic cylinder is connected with the first large arm 4801, a second end of the large arm 48 telescopic cylinder is connected with the second large arm 4802, and the expansion and contraction of the large arm 48 are controlled by the expansion and contraction of the large arm telescopic cylinder 4803; the small arm 49 comprises a first small arm 4901 and a second small arm 4902, the first small arm 4901 can be slidably sleeved in the second small arm 4902, the small arm 49 telescopic cylinder is arranged in the small arm 49, the first end of the small arm 49 telescopic cylinder is connected with the first small arm 4901, the second end of the small arm 49 telescopic cylinder is connected with the second small arm 4902, and the expansion and contraction of the small arm 49 are controlled through the expansion and contraction of the small arm telescopic cylinder 4903.
Referring to fig. 7, the supporting arm 52 is composed of a mounting base 5201, a first supporting piece 5202, a second supporting piece 5203, a first pulling rod 5204, a second pulling rod and an adjusting rod 5206. The first end of the first support 5202 and the first end of the second support 5203 are both hinged to the mounting base 5201; the first end of the first pull rod 5204 is hinged to the second end of the first support 5202, and the first end of the second pull rod is hinged to the second end of the second support 5203; one end of the adjusting rod 5206 is hinged to the second end of the first pull rod 5204 and the second end of the second pull rod, respectively, and the adjusting rod 5206 penetrates through the mounting base 5201 and is movable along the length direction of the mounting base 5201. The inner side surfaces of the upper supporting leg and the lower supporting leg of the supporting shed frame are respectively provided with an inner supporting hole 53, the first supporting piece 5202 and the second supporting piece 5203 on the supporting arm 52 can be inserted into the inner supporting hole 53 of the supporting shed frame, the adjusting rod 5206 extends out to drive the first supporting piece 5202 and the second supporting piece 5203 to be outwards supported, one supporting arm 52 on the small arm 49 is used for supporting and grabbing the upper supporting leg, and the other supporting arm 52 on the small arm 49 is used for supporting and grabbing the lower supporting leg.
In some embodiments, the mounting arm 37 further includes an unlocking assembly including an unlocking cylinder and an unlocking lever 56, the unlocking cylinder being provided on an outer wall of the small arm 49 along a length direction of the small arm 49, and the unlocking cylinder having one end connected to the small arm 49 and the other end connected to the unlocking lever 56.
The process of installing the supporting shed frame by the installation component comprises the following steps: firstly, through the coordination operation of a large-arm tilting cylinder 50 and a small-arm tilting cylinder 51, each supporting arm 52 in the mounting assembly extends into an inner supporting hole 53 of an upper supporting leg or a lower supporting leg (at the moment, the upper supporting leg and the lower supporting leg are in a contraction state), so that the support shed frame is grabbed, then the mounting arm 37 transfers the support shed frame to a position to be mounted, then an unlocking rod 56 is inserted into a first stop piece 16 of the support shed frame, the unlocking rod 56 presses the first stop piece 16 through the contraction of an unlocking cylinder 55, so that a pawl 11 of a locking assembly is in an open position, then a small-arm telescopic cylinder 4903 extends, so that the upper supporting leg and the lower supporting leg are gradually unfolded, finally a top beam is contacted with the top of a roadway side, and the side boots on the two sides of the support shed frame are contacted with the side walls of the roadway; after the upper and lower legs are unfolded, the bottom body 22 is rotated to the state shown in fig. 27, and the bottom surface of the bottom body 22 is in contact with the roadway floor; finally, the unlocking cylinder extends, the pressing force on the first stop piece 16 is removed, the pawl 11 is meshed with the ratchet rack 9 under the action of the first return spring 17, the upper supporting leg and the lower supporting leg are locked mutually, and then the supporting hand 52 is removed from the inner supporting hole 53, so that the whole supporting shed frame installation operation process is completed. The process of disassembling the supporting shed frame by the disassembling component is opposite to the installation process, so the process is not described in detail.
Referring to fig. 5, the second bracket includes a connection plate 42, two first lift cylinders 43, and two second lift cylinders 44. One end of the connecting plate 42 is hinged with the second vehicle body, and the other end of the connecting plate 42 is hinged with the second slideway 39; one end of each first lift cylinder 43 is hinged with the second vehicle body, and the other end of each first lift cylinder 43 is hinged with the first end of the second slideway 39; one end of each second lift cylinder 44 is hinged to the second vehicle body, and the other end of each second lift cylinder 44 is hinged to the second end of the second slide way 39. The second support can be lifted and lowered under the adjustment of the first lift cylinder 43 and the second lift cylinder 44.
In some embodiments, the rack-and-unload vehicle further comprises a drill stand rotatably provided on the second vehicle body. The drill frame is used for providing a guiding effect for a drill rod or an anchor rod, the anchor rod support is generally used for drilling a hole firstly and then carrying out anchor rod support in the hole, and anchor rod support operation at different angles can be realized through the rotatable arrangement. In specific implementation, the drill frame consists of a support frame 46, a top plate 45 and a drill box 47; the two support frames are respectively fixed on two sides of the second vehicle body; the two support frames are respectively fixed on two sides of the second vehicle body; a positioning hole is formed in the top plate 45, the top plate 45 is connected with the upper end of the support frame 46, and the top plate 45 can move along the length direction of the support frame 46; during supporting, the top plate 45 is jacked to the wall surface of the roadway; the drill box 47 is connected to the lower end of the support frame 46, and the drill box 47 is used for connecting a drill rod or a rock bolt. In this embodiment the mounting arm 37 of the dismounting assembly may be fixed to one side of the drilling rig.
The functions and implementation steps of the devices are as follows:
(1) along with the tunneling of the first vehicle body, the support shed frames carried on the support mounting vehicle are rapidly mounted in the roadway one by one at a certain spacing distance, the supporting effect is achieved, the supporting along with the tunneling is achieved, the automatic supporting of the working face is achieved through simple automatic control, and the unmanned operation is further achieved.
(2) After the supporting shed frame arranged on the support mounting vehicle is used up, the first vehicle body is shut down, the working face is ventilated and dusted, the drilling frame on the support dismounting vehicle behind the working face is used for bolting, the dismounting assembly can dismount and mount the expanded supporting shed frame close to the drilling frame, the dismounted telescopic supporting shed frame is placed on the second slide way 39 of the support dismounting vehicle, the second nut slide block 40 on the support dismounting vehicle pushes the supporting shed frame forward to move one supporting shed frame body position and retreat the original position, and the position is reserved for the next retracted supporting shed frame. And (4) assembling and disassembling a supporting shed frame every time one row of anchor rods are supported, and repeating the steps.
(3) After the support dismantling vehicle is fully loaded or a certain number of support shed frames are dismantled, the second vehicle body walks to the position right behind the first vehicle body, the second slide way 39 is adjusted to a proper height through the two first lifting cylinders 43 and the two second lifting cylinders 44, the support shed frames on the second slide way 39 are pushed forwards by the second nut slide block 40 and are unloaded onto the first slide way 33 of the support dismantling vehicle, then the support shed frames are pushed forwards to proper positions by the first nut slide block 38 and are returned to the original positions, and the process is repeated until the support dismantling vehicle is fully loaded or the support shed frames are dismantled to proper positions.
(4) And (2) repeating the step (1) after the mounting assembly on the bracket mounting vehicle is full or provided with a certain number of supporting shed frames. The method is repeated, so that working of workers in an extremely severe working environment when the tunneling machine set works is avoided, occupational diseases are fundamentally avoided, and automatic efficient tunneling and unmanned safe construction of tunneling on a tunneling working face are achieved.
The invention also has the following advantages:
1. by applying the roadway supporting device disclosed by the invention, the supporting working efficiency during tunneling can be greatly improved, the problem of unmatched excavation and supporting working progress in roadway tunneling is thoroughly solved, and the roadway tunneling efficiency is greatly improved.
2. By applying the roadway supporting device disclosed by the invention, the roadway can be supported along with excavation, the empty roof distance (the supporting distance is not arranged at the excavation section) is effectively shortened, the occurrence of roadway disasters such as roof fall and the like is reduced to the maximum extent, and the potential safety hazard is greatly reduced.
3. The roadway supporting device provided by the invention supports not only the top of the roadway, but also the lateral side of the roadway, and avoids rib spalling to the maximum extent and possible accidents caused by the rib spalling.
4. The supporting shed frame is ingenious in design, can generate self-boosting working resistance when the top is pressed, reduces the requirement of the supporting shed frame on the working resistance, is simple and light in structure, occupies small space, and is efficient in utilization of the space of a mine roadway.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. The utility model provides a support dismantling car that can automatic drilling which characterized in that includes:
a second vehicle body;
the second bracket is connected with the second vehicle body in a liftable manner;
the second slide way is connected with the second support and extends along the length direction of the second vehicle body, and the opening direction of the second slide way is downward or faces to any one of the left side and the right side; the number of the second slide ways is two, and the two second slide ways are arranged at intervals along the width direction of the second vehicle body;
the second nut sliding block is slidably arranged in the second slideway, and at least part of the second nut sliding block is positioned on the outer side of the second slideway;
the second screw rod is rotatably arranged in the second slide way along the length direction of the second slide way and is in threaded fit with the second nut slide block;
the second driving device is arranged at one end of the second slide way and connected with the second lead screw, and the second driving device is used for driving the second lead screw to rotate and driving the second nut slide block to slide along the second slide way;
the mounting arm is used for dismounting the supporting shed frame from the roadway;
the drill frame is rotatably arranged on the second vehicle body.
2. The auto-drillable stand-off vehicle of claim 1, wherein the mounting arm includes:
the large arm can stretch out and draw back, and the first end of the large arm is rotatably connected with the second vehicle body;
the small arm is telescopic, the first end of the small arm is rotatably connected with the second end of the large arm, at least two supporting hands are arranged on the small arm, and the supporting hands are suitable for being detachably connected with the supporting shed frame;
a boom tilt cylinder, a first end of the boom tilt cylinder being rotatably connected to the second vehicle body, a second end of the boom tilt cylinder being rotatably connected to the boom;
the first end of the small arm tilting oil cylinder is rotatably connected with the large arm, and the second end of the small arm tilting oil cylinder is rotatably connected with the small arm.
3. The auto-drillable stand-off vehicle of claim 2, wherein the mounting arm further comprises:
the large arm telescopic cylinder comprises a first large arm and a second large arm, the first large arm is slidably arranged in the second large arm, the large arm telescopic cylinder is arranged in the large arm, the first end of the large arm telescopic cylinder is connected with the first large arm, and the second end of the large arm telescopic cylinder is connected with the second large arm;
the small arm telescopic cylinder comprises a first small arm and a second small arm, the first small arm can be arranged in the second small arm in a sliding mode, the small arm telescopic cylinder is arranged in the small arm, the first end of the small arm telescopic cylinder is connected with the first small arm, and the second end of the small arm telescopic cylinder is connected with the second small arm.
4. The auto-drillable stand-off cart of claim 2, wherein said hand brace comprises:
the mounting seat is fixed with the small arm;
the first end of the first supporting piece and the first end of the second supporting piece are both rotatably connected with the mounting seat;
the first end of the first pull rod is rotatably connected with the second end of the first supporting piece, and the first end of the second pull rod is rotatably connected with the second end of the second supporting piece;
one end of the adjusting rod is rotatably connected with the second end of the first pull rod and the second end of the second pull rod respectively, and the adjusting rod penetrates through the mounting seat and can move along the length direction of the mounting seat.
5. The support dismantling vehicle capable of automatically drilling according to claim 2, wherein the mounting arm further comprises an unlocking assembly, the unlocking assembly comprises an unlocking cylinder and an unlocking rod, the unlocking cylinder is arranged on the outer wall of the small arm along the length direction of the small arm, one end of the unlocking cylinder is connected with the small arm, and the other end of the unlocking cylinder is connected with the unlocking rod.
6. The auto-drillable stand-dismantling vehicle according to claim 1, wherein said second stand includes:
one end of the connecting plate is rotatably connected with the second vehicle body, and the other end of the connecting plate is rotatably connected with the second slide way;
one end of the first lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the first lifting oil cylinder is rotatably connected with the first end of the second slideway;
and one end of the second lifting oil cylinder is rotatably connected with the second vehicle body, and the other end of the second lifting oil cylinder is rotatably connected with the second end of the second slideway.
7. The auto-drillable bracket dismounting vehicle according to claim 1, wherein the second driving means includes a second motor and a second speed reducer, and the second motor is in transmission connection with one end of the second lead screw through the second speed reducer.
8. The auto-drillable stand-dismantling vehicle according to any one of claims 1 to 7, wherein said drill stand comprises:
a support frame;
the top plate is provided with a positioning hole, the top plate is connected with the upper end of the support frame, and the top plate can move along the length direction of the support frame;
and the drilling box is connected with the lower end of the support frame and is used for connecting a drill rod or an anchor rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111183826.2A CN114017052B (en) | 2021-10-11 | 2021-10-11 | Support dismantling vehicle capable of automatically drilling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111183826.2A CN114017052B (en) | 2021-10-11 | 2021-10-11 | Support dismantling vehicle capable of automatically drilling |
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| CN114017052B true CN114017052B (en) | 2023-04-11 |
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| JP2589294Y2 (en) * | 1992-10-20 | 1999-01-27 | 日本コンベヤ株式会社 | Shear unloading device |
| CN207827722U (en) * | 2018-01-23 | 2018-09-07 | 铁法煤业(集团)有限责任公司大兴煤矿 | For the installation of canopy holder, remove special-purpose vehicle |
| CN108798736A (en) * | 2018-07-05 | 2018-11-13 | 北京诚田恒业煤矿设备有限公司 | A kind of lame advanced supporting disassembly system and its assembly and disassembly methods |
| CN208456649U (en) * | 2018-07-05 | 2019-02-01 | 北京诚田恒业煤矿设备有限公司 | A kind of lame advanced supporting disassembly system |
| CN209741205U (en) * | 2018-12-30 | 2019-12-06 | 无锡柯乐新材料科技有限公司 | Automatic feeding device of splitting machine for leather plate processing |
| CN109915163A (en) * | 2019-03-28 | 2019-06-21 | 廊坊景隆重工机械有限公司 | Speedy drivage system and speedy drivage method |
| CN211598695U (en) * | 2020-02-26 | 2020-09-29 | 中铁六局集团有限公司 | Arched tunnel waterproof board laying device |
| CN112253160B (en) * | 2020-10-28 | 2022-03-29 | 中国矿业大学(北京) | Complete equipment for quick tunneling, drilling and anchoring without repeated support under coal mine |
| CN213928381U (en) * | 2020-12-15 | 2021-08-10 | 山东高速畅通路桥工程有限公司 | Tunnel bow member positioning device |
| CN113279790B (en) * | 2021-06-28 | 2024-04-12 | 辽宁工程技术大学 | Working face support retracting robot and working method thereof |
| CN114017080B (en) * | 2021-10-11 | 2023-02-03 | 煤炭科学研究总院有限公司 | Support disassembling vehicle |
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