CN115898398A - Medium-length hole mining device and process for irregular thick and large ore body - Google Patents
Medium-length hole mining device and process for irregular thick and large ore body Download PDFInfo
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- CN115898398A CN115898398A CN202211438087.1A CN202211438087A CN115898398A CN 115898398 A CN115898398 A CN 115898398A CN 202211438087 A CN202211438087 A CN 202211438087A CN 115898398 A CN115898398 A CN 115898398A
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- 238000005065 mining Methods 0.000 title claims abstract description 155
- 230000001788 irregular Effects 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000005520 cutting process Methods 0.000 claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 238000003825 pressing Methods 0.000 description 8
- 239000003245 coal Substances 0.000 description 6
- 238000005553 drilling Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
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Abstract
The invention discloses a medium-length hole mining device for irregular thick and large ore bodies, which comprises a walking rotary support, a mining arm and a cutting end, wherein the mining arm and the cutting end are arranged on the walking rotary support, the mining arm can rotate by taking the walking rotary support as a center and drive the cutting end to mine the ore bodies, and the medium-length hole mining device also comprises: counter weight mechanism, it includes first counter weight slide, be provided with slide mechanism with the relative one end of exploitation arm on the rotatory support of walking, first counter weight slide is in slide in order to balance on the rotatory support of walking the skew moment of producing of cutting end motion, rotation when extending through the exploitation arm drives counter weight mechanism and slides to keeping away from exploitation arm one side on the rotatory support of walking, comes the skew moment of producing of balanced cutting end motion through the slip of first counter weight slide on the rotatory support of walking, has improved the stability of the rotatory support of walking, and the risk that the rotatory support of walking turned on one side when having reduced ore body exploitation.
Description
Technical Field
The invention relates to the technical field of ore body mining, in particular to a device and a process for mining an irregular thick and large ore body by adopting a medium-length hole.
Background
As is known, the sill pillar-free sublevel caving method is to divide a sublevel roadway into segments for reuse; the method comprises the following steps of (1) segmenting and subdividing into strips, wherein a stoping roadway is arranged in each strip; the strip is not provided with a special ore drawing bottom structure, and ore falling and conveying are directly carried out in a stoping roadway. Mining between the sections in a certain sequence, and mining between the sections from top to bottom. The sublevel caving method without sill pillar makes one of the applicable conditions be a regular extremely-inclined thick ore body or a slowly-inclined extremely-thick ore body, because of the difference of the formation of the ore body, the inclination angle of the end part of the ore body secondarily confined in the actual production is greatly changed, the inclination angle of the individual sublevel ore body is about 30 degrees, and the ore body with the irregular thickness shown in figure 1 is the ore body with the irregular thickness, and for the ore body with the irregular thickness still having the large inclination angle after the secondary confinement, the ore mining machine needs to incline a certain angle to adapt to the inclined ore body when the mining operation is carried out.
The invention provides a coal mining device, belonging to the technical field of coal mining, and belonging to the invention patent with publication number CN113250689A, publication number 2021, 08 and 13, and name 'a coal mining device'. The coal mining device can comprise a walking part, a support part, a cutting part, an anchor rod/anchor cable drilling machine part, a top cutting drilling machine part and a collecting part. Wherein, the bracket part can comprise a base, a lifting mechanism, a bracket and a front beam. The base can be fixed in the walking portion, lifts the mechanism and can be fixed in the base and support the support in the walking portion top. The front beam can be fixed on the bracket, and the cutting part can be arranged on the base and can extend out to the front of the walking part to cut the ore bed. The anchor rod/anchor cable drilling machine part can be arranged on the base and can extend out of the front of the support, and the top cutting drilling machine part can be arranged on one side of the support part and can perform directional joint cutting in the goaf. The collection portion can be connected to the base, can transport the ore body in walking portion the place ahead to walking portion rear. The coal mining device realizes the purpose of mining, anchoring and cutting integration, so that the working efficiency of coal mining can be greatly improved, the manpower can be reduced, and the cost can be reduced.
Among the prior art, because the ore body has certain inclination for current mining machine need carry out certain slope or the mining arm and cutting end need carry out certain extension operation when carrying out the mining operation, but because mining arm and cutting end extend the overlength, walking swivel support has unstable phenomenon, when carrying out the mining of this kind of ore body of irregular thick and big ore body, the probability that walking swivel support turned on one's side is far away the unconventional exploitation, has increased the risk of ore body exploitation.
Disclosure of Invention
The invention aims to provide a medium-length hole mining device and a medium-length hole mining process for irregular thick and large ore bodies, which are used for solving the problems in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides an irregular thick and big ore body adopts medium-length hole mining devices, includes walking rotary support and installs mining arm and cutting end on the rotatory support of walking, the mining arm can use walking rotary support to rotate and drive as the center the cutting end is to the ore body carries out the exploitation operation, still includes:
the counterweight mechanism comprises a first counterweight sliding plate, one end, opposite to the mining arm, of the walking rotary support is provided with a sliding mechanism, and the first counterweight sliding plate slides on the walking rotary support to balance the moment generated by the motion deviation of the cutting end.
Foretell, slide mechanism is including promoting the rack, evenly seted up three first spout, three with the other end relative of exploitation arm on the rotatory support of walking respectively install a first counter weight slide through sliding fit's mode in the first spout, the rotatory support of walking is gone up and is located first counter weight slide in the centre and be provided with the propulsion rack on being close to the outer wall of exploitation arm one side, and the exploitation arm uses the rotatory support of walking to evenly be provided with the latch on serving the outer wall as the rotation at center, and latch and propulsion rack intermeshing use.
Foretell, slide mechanism still includes the second counter weight slide, on the rotatory support of walking with the relative one end of exploitation arm and be located threely two second spouts, two have been seted up to contained angle position between the first spout second counter weight slide is installed through sliding fit's mode in the second spout.
The sliding mechanism further comprises a connecting rod piece, flat grooves are formed in the side wall of one side, opposite to the first balance weight sliding plate, of the two second balance weight sliding plates and the three first balance weight sliding plates, a rotating shaft is arranged in each flat groove, the rotating shafts on the two adjacent second balance weight sliding plates and the first balance weight sliding plates in each group are connected in a rotating fit mode through the connecting rod piece, namely the connecting rod piece is connected between any two adjacent rotating shafts, and the length of the connecting rod piece is the same as the length between the far ends of the adjacent first sliding grooves and the second sliding grooves.
Foretell, it is three all be provided with first weight box on the first counter weight slide, evenly be provided with a plurality of first balancing weights in the first weight box.
And the second counterweight sliding plates are respectively provided with a second counterweight box, and a plurality of second counterweight blocks are uniformly arranged in the second counterweight boxes.
In the above, the sliding mechanism further comprises a sliding rail, the sliding rail is arranged in the middle of the walking rotary support, and the propelling rack is installed in the sliding rail in a sliding fit manner.
In the above, the adjacent first sliding grooves and the second sliding grooves on the walking rotary support have the same interval angle, and the distance between the second sliding grooves and the mining arm is farther than the distance between the first sliding grooves and the mining arm.
The bottom end of the walking rotary support is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove are respectively provided with two supporting mechanisms, and the supporting mechanisms are matched with the sliding of the second counterweight sliding plate, so that the supporting mechanisms support the walking rotary support.
A medium-length hole mining process for irregular thick and large ore bodies is characterized in that mining operation is carried out on the ore bodies through the irregular thick and large ore bodies through a medium-length hole mining device, the ore bodies are mined through a mining arm and a cutting end in the mining process of the ore bodies, and a counter weight mechanism is used for carrying out counter weight operation on a walking rotary support so as to prevent the walking rotary support from turning over in the mining process.
The invention has the beneficial effects that: rotation when extending through the exploitation arm drives counter weight mechanism and to keeping away from exploitation arm one side and slide on rotatory support of walking, comes the skew moment that produces of balanced cutting end motion through the slip of first counter weight slide on rotatory support of walking, has improved the stability of rotatory support of walking, and the risk that rotatory support of walking turned on one's side when having reduced ore body exploitation.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic cross-sectional view of a background art of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a top view of FIG. 2 of the present invention;
FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to the present invention;
FIG. 6 is a schematic cross-sectional view taken at C-C of FIG. 3 according to the present invention;
FIG. 7 is a schematic cross-sectional view taken at D-D of FIG. 3 according to the present invention;
FIG. 8 is a schematic perspective view of a counterweight mechanism according to the present invention;
FIG. 9 is a schematic perspective view of the support mechanism of the present invention;
FIG. 10 is a perspective view of a sliding mechanism according to the present invention;
fig. 11 is a partial perspective view of the sliding mechanism of the present invention from a second perspective.
Description of the reference numerals:
1. a walking rotary support; 11. a mining arm; 12. cutting the end; 2. a counterweight mechanism; 21. a first counterweight sliding plate; 22. a first weight box; 23. a first weight block; 3. a sliding mechanism; 31. a push rack; 32. a first chute; 33. a second counterweight sliding plate; 34. a second chute; 35. connecting rod pieces; 36. a rotating shaft; 37. a second weight box; 38. a second counterweight block; 39. a slide rail; 4. a support mechanism; 41. a straight plate; 42. a square plate; 43. pressing the groove downwards; 431. a linear groove; 432. an inclined plane groove; 44. penetrating a groove; 45. a card slot; 46. clamping a plate; 47. positioning the shaft; 48. a flat bar; 49. a square bar; 410. a propeller shaft; 411. a support bar; 412. a U-shaped plate; 413. and (4) inserting the rod.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 11, the medium-length hole mining device for irregular thick and large ore bodies provided by the embodiment of the present invention includes a walking rotating support 1, and a mining arm 11 and a cutting end 12 mounted on the walking rotating support 1, where the mining arm 11 can rotate around the walking rotating support 1 and drive the cutting end 12 to mine the ore bodies, and further includes:
and the counterweight mechanism 2 comprises a first counterweight sliding plate 21, one end of the walking rotary support 1, which is opposite to the mining arm 11, is provided with a sliding mechanism 3, and the first counterweight sliding plate 21 slides on the walking rotary support 1 to balance the moment generated by the motion deviation of the cutting end 12.
Specifically, walking rotary support 1 is the walking automobile body of mining device, generally is the crawler-type automobile body, it is multi-directional mining to rotate connection mining mechanism like the exploitation arm on it, so move and rotate in the ore body through walking rotary support 1, make exploitation arm 11 and cutting end 12 carry out the exploitation operation to the ore body, because of having the thick ore body of anomalous extreme slope or the extremely thick ore body of gentle slope, make exploitation arm 11 and cutting end 12 carry out the exploitation operation to this type of ore body in-process, exploitation arm 11 and cutting end 12 need rotate certain angle to adapt to the slope of ore body, because the ore body has the slope to make walking rotary support 1 when walking or cutting end 12 when mining the ore body, walking rotary support 1 is not very stable, make the cutting end 12 on walking rotary support 1 have the risk of turning on one's side when mining the ore body, the nuclear point of the invention lies in: the rotation dynamics when exploiting the ore body through the upper mining arm 11 of rotatory support 1 of walking drives first counter weight slide 21 and slides on rotatory support 1 of walking for the moment of the skew production of cutting end 12 motion can be balanced to first counter weight slide 21, in order to guarantee the stability of rotatory support 1 of walking when cutting end 12 is exploited the ore body, prevents that rotatory support 1 of walking from taking place to turn on one's side.
In this embodiment, the first counterweight sliding plate 21 can be actively slid, for example, a hydraulic cylinder is provided for driving, and the active driving for performing the linear reciprocating motion is the prior art and is not described herein. In a preferred embodiment, the first counterweight sliding plate 21 performs passive sliding, and at this time, further, the sliding mechanism 3 includes a pushing rack 31, the other end of the walking rotary support 1 opposite to the mining arm 11 is uniformly provided with three first sliding chutes 32, each of the three first sliding chutes 32 is provided with one first counterweight sliding plate 21 in a sliding fit manner, the outer wall of the first counterweight sliding plate 21 located at the center on the walking rotary support 1 near the mining arm 11 is provided with the pushing rack 31, the outer wall of the rotary end of the mining arm 11 centered on the walking rotary support 1 is uniformly provided with a latch, and the latch and the pushing rack 31 are engaged with each other for use, specifically, (1) when the mining arm 11 rotates to the side close to the bottom end of the walking rotary support 1 (i.e. when the mining arm 11 needs to extend to the end far from the walking rotary support 1), the mining arm 11 drives the latch to rotate, the latch drives the pushing rack 31 to slide to the end far from the mining arm 11 through the engagement with the pushing rack 31, the pushing rack 31 drives the first counterweight sliding plate 21 located between the walking rotary support 1 and the first counterweight sliding chute 32 to prevent the mining arm 11 from sliding and from side tipping over the mining arm 11, so as to prevent the mining arm 11 from sliding and from causing a risk of the mining arm to perform a side-tipping operation; (2) When the mining arm 11 rotates and needs to rotate to be relatively perpendicular to the walking rotary support 1 (that is to say, when the mining arm 11 needs to extend to the position of the highest point thereof, that is, when the mining arm 11 needs to mine the top end of an ore body), the mining arm 11 drives the pushing rack 31 to slide towards one end close to the mining arm 11 through the latch, the pushing rack 31 drives the first counterweight sliding plate 21 to slide towards one end close to the mining arm 11 in the first sliding groove 32, so that the first counterweight sliding plate 21 is gathered towards one side of the mining arm 11 to increase the weight in the middle of the walking rotary support 1, and the stability of the walking rotary support 1 is ensured.
Further, the sliding mechanism 3 further includes a second counterweight sliding plate 33, two second sliding grooves 34 are formed in one end of the walking rotary support 1 opposite to the mining arm 11 and located at an included angle between the three first sliding grooves 32, and the second counterweight sliding plate 33 is installed in the two second sliding grooves 34 in a sliding fit manner, specifically, (1) when the mining arm 11 rotates towards one side close to the bottom end of the walking rotary support 1, the second counterweight sliding plate 33 slides in the second sliding grooves 34 towards one end far away from the mining arm 11, so that the first counterweight sliding plate 21 and the second counterweight sliding plate 33 provide a relative balance force for the mining arm 11 by taking the walking rotary support 1 as a center, and the risk of side turning when the mining arm 11 and the cutting end 12 perform mining operation on an ore body is effectively prevented; (2) When the mining arm 11 is rotated to be relatively vertical to the walking rotation support 1 (that is, when the mining arm 11 needs to extend to the highest point thereof, that is, when the mining arm 11 needs to mine the top end of the ore body), the second counterweight sliding plate 33 slides in the second sliding groove 34 to the end close to the mining arm 11, so that the first counterweight sliding plate 21 and the second counterweight sliding plate 33 are gathered to one side of the mining arm 11 at the same time to increase the weight of the middle part of the walking rotation support 1, thereby ensuring the stability of the walking rotation support 1.
Further, the sliding mechanism 3 further includes a connecting rod member 35, flat grooves are formed on the side walls of the two second counterweight sliding plates 33 and the opposite sides of the three first counterweight sliding plates 21, a rotating shaft 36 is respectively arranged in the five flat grooves, each group of two adjacent second counterweight sliding plates 33 and the rotating shaft 36 on the first counterweight sliding plate 21 are connected in a rotating fit manner through the connecting rod member 35, that is, one connecting rod member 35 is connected between any two adjacent rotating shafts 6, and the length of the connecting rod member 35 is the same as the length between the distal ends of the adjacent first sliding grooves 32 and second sliding grooves 34 (or the length of the connecting rod member 35 is slightly longer than the length between the distal ends of the adjacent first sliding grooves 32 and second sliding grooves 34, as shown in fig. 11), specifically, (1) when the mining arm 11 rotates to the side close to the bottom end of the walking rotary support 1 (that is, when the mining arm 11 needs to extend to the end far away from the walking rotary support 1), the mining arm 11 drives the latch to rotate, the latch drives the pushing rack 31 to slide towards one end far away from the mining arm 11 through mutual meshing with the pushing rack 31, the pushing rack 31 drives the first counterweight sliding plate 21 positioned in the middle of the walking rotary support 1 to slide towards one end far away from the mining arm 11 in the first sliding groove 32, the first counterweight sliding plate 21 positioned in the middle of the walking rotary support 1 drives the second counterweight sliding plate 33 to slide towards one end far away from the mining arm 11 in the second sliding groove 34 through the connecting rod piece 35 and the rotating shaft 36 (namely, the first counterweight sliding plate 21 positioned in the middle of the walking rotary support 1 drives the two second counterweight sliding plates 33 to slide towards one end far away from the mining arm 11 in the second sliding groove 34 through the connecting rod piece 35), and the second counterweight sliding plate 33 drives the two counterweight sliding plates positioned on two sides of the walking rotary support 1 through the connecting rod piece 35 and the rotating shaft 36 The first counterweight sliding plate 21 slides in the first sliding groove 32 to one end far away from the mining arm 11 (that is, the two second counterweight sliding plates 33 respectively pull the two first counterweight sliding plates 21 on the two sides of the walking rotary support 1 to slide in the first sliding groove 32 to one end far away from the mining arm 11 through the connecting rod member 35 and the rotating shaft 36), so that the first counterweight sliding plate 21 and the second counterweight sliding plate 33 simultaneously keep relatively stable balance force for the mining arm 11 by taking the walking rotary support 1 as a center, and the risk of side turning when the mining arm 11 and the cutting end 12 perform mining operation on an ore body is effectively prevented; (2) When the mining arm 11 rotates to be relatively perpendicular to the walking rotary support 1 (that is, when the mining arm 11 needs to extend to the highest point thereof, that is, when the mining arm 11 needs to mine the top end of an ore body), the mining arm 11 drives the pushing rack 31 to slide towards one end close to the mining arm 11 through the latch, the pushing rack 31 drives the first counterweight sliding plate 21 located at the middle of the walking rotary support 1 to slide towards one end close to the mining arm 11 in the first sliding groove 32, the first counterweight sliding plate 21 located at the middle of the walking rotary support 1 drives the second counterweight sliding plate 33 to slide towards one end close to the mining arm 11 in the second sliding groove 34 through the connecting rod 35 and the rotating shaft 36, and the second counterweight sliding plate 33 drives the two first counterweight sliding plates 21 located at two sides of the walking rotary support 1 to slide towards one end close to the mining arm 11 in the first sliding groove 32 through the connecting rod 35 and the rotating shaft 36, so that the first counterweight sliding plate 21 and the second counterweight sliding plate 33 are gathered towards one side of the mining arm 11 at the same time to increase the weight at the middle of the walking rotary support 1, thereby ensuring the stability of the walking rotary support 1; through the transmission action of the connecting rod 35, the three first weight sliding plates 21 and the two second weight sliding plates 33 can slide away from or close to one end of the mining arm 11 at the same time, so that the stability of the walking rotary support 1 is ensured.
Further, all three first weight slide 21 are provided with first weight boxes 22, and a plurality of first weight blocks 23 are uniformly arranged in the first weight boxes 22, specifically, when the weight of the first weight slide 21 is not enough to balance the moment generated by the movement deviation of the mining arm 11 and the cutting end 12, the number of the first weight blocks 23 needs to be increased in the first weight boxes 22 to ensure the balance force of the first weight slide 21, and the balance force provided by the first weight slide 21 to the mining arm 11 and the cutting end 12 can be adjusted by the number of the first weight blocks 23.
Further, a second weight box 37 is respectively installed on two second weight sliding plates 33, a plurality of second counter weights 38 are evenly installed in the second weight box 37, specifically, when the weight of the second weight sliding plates 33 is not enough to balance the moment generated by the movement deviation of the mining arm 11 and the cutting end 12, the number of the second counter weights 38 needs to be increased in the second weight box 37 to ensure the balance force of the first weight sliding plate 21, and the balance force provided by the second weight sliding plates 33 to the mining arm 11 and the cutting end 12 can be adjusted through the number of the second counter weights 38.
Further, the sliding mechanism 3 further comprises a sliding rail 39, the sliding rail 39 is arranged in the middle of the walking rotary support 1, the propelling rack 31 is installed in the sliding rail 39 in a sliding fit mode, specifically, when the mining arm 11 drives the propelling rack 31 to slide through the latch, the propelling rack 31 slides in the sliding rail 39 along the track of the sliding rail 39, the sliding stability of the propelling rack 31 is improved, and the propelling rack 31 provides stable propelling force for the first counterweight sliding plate 21.
Further, the spacing angle between the adjacent first sliding chute 32 and second sliding chute 34 on the walking rotary support 1 is the same, and the distance between the second sliding chute 34 and the mining arm 11 is longer than the distance between the first sliding chute 32 and the mining arm 11, specifically, because the spacing angle between the adjacent first sliding chute 32 and second sliding chute 34 is the same, the first counterweight sliding plate 21 and the second counterweight sliding plate 33 do not collide when sliding in the first sliding chute 32 and when sliding in the second sliding chute 34, and because the distance between the second sliding chute 34 and the mining arm 11 is longer than the distance between the first sliding chute 32 and the mining arm 11, the distance between the second counterweight sliding plate 33 and the mining arm 11 in the second sliding chute 34 is longer than the distance between the first counterweight sliding plate 21 and the mining arm 11 in the first sliding chute 32, so that the second counterweight sliding plate 33 provides a more stable balance force for the mining arm 11, and the stability of the walking rotary support 1 is ensured.
Preferably, two support mechanisms 4 are symmetrically arranged on the bottom end of the walking rotary support 1 and between the first sliding chute 32 and the second sliding chute 34 on both sides, the support mechanisms 4 are adapted to the sliding of the second counterweight sliding plate 33, so that the support mechanisms 4 support the walking rotary support 1, one support mechanism 4 comprises a straight plate 41, two straight plates 41 are symmetrically arranged on the bottom end of the walking rotary support 1 and between the first sliding chute 32 and the second sliding chute 34 on both sides, a square plate 42 is arranged at the bottom end of the second counterweight sliding plate 33, a pressing groove 43 is arranged on the square plate 42 (the pressing groove 43 comprises a straight groove 431 and an inclined groove 432 connected with each other, the end of the pressing groove 43 close to the pushing rack 31 is the straight groove 431, the end of the pressing groove 43 far from the pushing rack 31 is the inclined groove 432, and the inclined plane groove 432 inclines upwards from the side close to the pushing rack 31 to the side far away from the pushing rack 31), wherein the straight plate 41 close to the side of the square plate 42 is provided with a through groove 44, the inner wall of the straight plate 41 far away from the side of the square plate 42 is provided with a clamping groove 45, the clamping plate 46 is arranged in the clamping groove 45 in a sliding fit manner, a positioning shaft 47 is arranged between the two symmetrical straight plates 41 close to the walking rotary support 1, the positioning shaft 47 is provided with two mutually crossed and symmetrical flat rods 48 in a rotating fit manner, the end parts of the two crossed and symmetrical flat rods 48 are respectively provided with a square rod 49 in a rotating fit manner, the middle parts of the two square rods 49 are connected into an X-shaped crossed assembly in a rotating fit manner through the pushing shaft 410, one end of the pushing shaft 410 is connected to the clamping plate 46, the other end of the pushing shaft 410 penetrates through the through groove 44 and is arranged in the lower pressing groove 43 in a sliding fit manner, respectively install a bracing piece 411 through normal running fit's mode at the tip of two square poles 49, install on U template 412 with normal running fit's mode at the tip of two bracing pieces 411, U template 412 bottom evenly is provided with inserted bar 413, it is concrete, (1) when mining arm 11 rotates to being close to walking swivel mount 1 bottom one side, mining arm 11 passes through the latch and pushes away rack 31 and drives first counter weight slide 21 and second counter weight slide 33 and slide to keeping away from mining arm 11 one end, second counter weight slide 33 drives square plate 42 and slides to keeping away from mining arm 11 one end, in square plate 42 to keeping away from the gliding in-process of mining arm 11 one end, push shaft 410 slides along the orbit of indent 43 down: a. initially, the pushing shaft 410 slides along the track of the inclined plane groove 432 of the pressing groove 43, so that the pushing shaft 410 drives the snap-gauge 46 to slide along the track of the snap-gauge 45, the pushing shaft 410 drives the square bar 49 to rotate, and because the positioning shaft 47 connects the end of the flat bar 48 between the two straight plates 41, the pushing shaft 410 drives the U-shaped plate 412 to move towards the end far away from the walking rotary support 1 through the square bar 49 and the support bar 411, the U-shaped plate 412 drives the insertion bar 413 to move towards the end far away from the walking rotary support 1 until the pushing shaft 410 slides into the straight line groove 431 from the inclined plane groove 432, the insertion bar 413 and the U-shaped plate 412 abut against the ground, so that the insertion bar 413, the U-shaped plate 412, the support bar 411, the square bar 49 and the flat bar 48 are combined into a support member, which can support the walking rotary support 1, and improve the stability of the walking rotary support 1; b. after the propulsion shaft 410 slides into the linear groove 431 along the inclined groove 432 of the lower pressure groove 43, when the propulsion shaft 410 slides along the track of the linear groove 431, the propulsion shaft 410 does not drive the U-shaped plate 412 to move any more, and at the moment, the support member formed by combining the inserted link 413, the U-shaped plate 412, the support rod 411, the square rod 49 and the flat rod 48 provides stable support force for the walking rotary support 1, so that the risk of side turning when the mining arm 11 and the cutting end 12 perform mining operation on an ore body is effectively prevented; (2) When the mining arm 11 rotates to be relatively perpendicular to the walking rotary support 1 (that is, when the mining arm 11 needs to extend to the highest point thereof, that is, when the mining arm 11 needs to mine the top end of an ore body), the first counterweight sliding plate 21 and the second counterweight sliding plate 33 are driven by the latch and the pushing rack 31 to slide towards the end close to the mining arm 11, the second counterweight sliding plate 33 drives the square plate 42 to slide towards the end close to the mining arm 11, and in the process that the square plate 42 slides towards the end far away from the mining arm 11, the pushing shaft 410 slides along the track of the lower pressing groove 43: a. at the beginning, the propulsion shaft 410 slides along the track of the linear groove 431, and at the moment, a support member formed by combining the inserted bar 413, the U-shaped plate 412, the support bar 411, the square bar 49 and the flat bar 48 provides stable supporting force for the walking rotary support 1, so that the risk of side turning when the mining arm 11 and the cutting end 12 perform mining operation on an ore body is effectively prevented; b. when the pushing shaft 410 slides from the linear groove 431 to the inclined groove 432, the pushing shaft 410 slides along the track of the inclined groove 432, meanwhile, the pushing shaft 410 drives the snap-gauge 46 to slide along the track of the snap-gauge 45, the pushing shaft 410 drives the square rod 49 to rotate, because the positioning shaft 47 connects the end of the flat rod 48 between the straight plates 41, the pushing shaft 410 drives the U-shaped plate 412 to move towards one end close to the walking rotary support 1 through the square rod 49 and the support rod 411, the U-shaped plate 412 drives the insert rod 413 to move towards one end close to the walking rotary support 1, so that the insert rod 413, the U-shaped plate 412, the support rod 411, the square rod 49 and the flat rod 48 are combined into a support member to be contracted to the initial position, the insert rod 413, the U-shaped plate 412, the support rod 411, the square rod 49 and the flat rod 48 are combined into a support member to no longer support the walking rotary support base 1, and the walking rotary support 1 can rotate freely.
The invention also provides a medium-length hole mining process for the irregular thick and large ore body, which is used for mining the ore body, wherein in the mining process of the ore body, the mining operation is carried out on the ore body through the mining arm 11 and the cutting end 12, and the counterweight operation is carried out on the walking and rotating support 1 through the counterweight mechanism 2, so that the walking and rotating support 1 is prevented from side turning in the mining process.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and are not to be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides an irregular thick big ore body adopts medium-length hole mining devices, includes the rotatory support of walking and installs exploitation arm and cutting end on the rotatory support of walking, the exploitation arm can use the rotatory support of walking to rotate and drive as the center the cutting end is to the ore body exploitation operation, its characterized in that still includes:
the counterweight mechanism comprises a first counterweight sliding plate, one end, opposite to the mining arm, of the walking rotary support is provided with a sliding mechanism, and the first counterweight sliding plate slides on the walking rotary support to balance the moment generated by the motion deviation of the cutting end.
2. The medium-length hole mining device for the irregular thick and large ore body according to claim 1, wherein the sliding mechanism comprises a pushing rack, three first sliding grooves are uniformly formed in the other end, opposite to the mining arm, of the walking rotating support, a first balance weight sliding plate is respectively installed in the three first sliding grooves in a sliding fit mode, the pushing rack is arranged on the outer wall, close to the mining arm, of the first balance weight sliding plate located in the middle of the walking rotating support, the outer wall of the rotating end, centered on the walking rotating support, of the mining arm is uniformly provided with clamping teeth, and the clamping teeth and the pushing rack are meshed with each other for use.
3. The medium-length hole mining device for the irregular thick and large ore body according to claim 2, wherein the sliding mechanism further comprises a second counterweight sliding plate, two second sliding grooves are formed in the end, opposite to the mining arm, of the walking rotating support and located at included angles between the three first sliding grooves, and the second counterweight sliding plate is installed in the two second sliding grooves in a sliding fit mode.
4. The medium-length hole mining device for the irregular thick and large ore body according to claim 3, wherein the sliding mechanism further comprises a connecting rod member, flat grooves are formed in the side walls of the two second counterweight sliding plates and the three first counterweight sliding plates on the opposite sides, a rotating shaft is arranged in each of the five flat grooves, the rotating shafts on the two adjacent second counterweight sliding plates and the first counterweight sliding plates in each group are connected in a rotating fit manner through the connecting rod member, namely, a connecting rod member is connected between any two adjacent rotating shafts, and the length of the connecting rod member is the same as the length between the far ends of the adjacent first sliding grooves and the second sliding grooves.
5. The medium-length hole mining device for the irregular thick and large ore body according to claim 1, wherein the three first counterweight sliding plates are respectively provided with a first counterweight box, and a plurality of first counterweight blocks are uniformly arranged in the first counterweight boxes.
6. The medium-length hole mining device for the irregular thick and large ore body according to claim 3, wherein a second weight box is respectively installed on the two second weight sliding plates, and a plurality of second counter weights are evenly installed in the second weight boxes.
7. The medium-length hole mining device for the irregular thick and large ore body according to claim 2, wherein the sliding mechanism further comprises a sliding rail, the middle part of the walking and rotating support is provided with the sliding rail, and the propelling rack is installed in the sliding rail in a sliding fit manner.
8. The medium-length hole mining device for irregular thick and large ore bodies according to claim 1, wherein the adjacent first sliding grooves and second sliding grooves on the walking and rotating support are the same in spacing angle, and the distance between the second sliding grooves and the mining arm is longer than that between the first sliding grooves and the mining arm.
9. The medium-length hole mining device for irregular thick and large ore bodies according to claim 3, wherein two supporting mechanisms are symmetrically arranged at the bottom end of the walking and rotating support and between the first sliding groove and the second sliding groove at two sides respectively, and the supporting mechanisms are matched with the sliding of the second counterweight sliding plate, so that the supporting mechanisms support the walking and rotating support.
10. A medium-length hole mining process for irregular thick and large ore bodies, which is characterized in that the ore bodies are mined by a medium-length hole mining device through the irregular thick and large ore bodies according to any one of claims 1 to 9, the ore bodies are mined through a mining arm and a cutting end during mining of the ore bodies, and a counter weight mechanism is used for balancing a walking rotating support so as to prevent the walking rotating support from turning over during mining.
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