CN109025861B - Raise boring machine handrail structure and raise boring machine - Google Patents
Raise boring machine handrail structure and raise boring machine Download PDFInfo
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- CN109025861B CN109025861B CN201811242599.4A CN201811242599A CN109025861B CN 109025861 B CN109025861 B CN 109025861B CN 201811242599 A CN201811242599 A CN 201811242599A CN 109025861 B CN109025861 B CN 109025861B
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- drill rod
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- 230000000670 limiting effect Effects 0.000 claims abstract description 59
- 239000002893 slag Substances 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003381 stabilizer Substances 0.000 description 30
- 238000010586 diagram Methods 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- E21B19/24—Guiding or centralising devices for drilling rods or pipes
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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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a raise boring machine handrail structure, which comprises a base bottom plate, a rocker arm roller assembly and a roller driving oil cylinder, wherein a first through hole for a drill rod to pass through is formed in the center of the base bottom plate; the rocker arm roller assembly comprises four groups of rollers which are respectively arranged in the four limit grooves; the roller driving oil cylinder is used for driving the four rollers to be close to or far away from the drill rod, when the rollers are closest to the drill rod, the rollers just collide with the first base limiting edge, and when the rollers are furthest away from the drill rod, the rollers just collide with the second base limiting edge.
Description
Technical Field
The invention belongs to the technical field of mining machinery, and particularly relates to a raise boring machine handrail structure and a raise boring machine.
Background
As shown in fig. 1, the stabilizer bar tile supporting structure of the conventional raise boring machine adopts two stabilizer bar tiles 1' to support the drill rod, and the mounting mode of the stabilizer bar tiles is as follows: two stabilizing bars 1' are aligned and installed on a base 2' and then are pressed by round head screws 3 '. This conventional stabilizer bar structure has the following disadvantages:
1. the rod stabilizing tile is in sliding contact with the drill rod, when the drill rod is not coaxial with the rod stabilizing tile or the eccentricity is large, the drill rod and the rod stabilizing tile slide and rub, the torque force of the machine head is large, and the drill rod is scratched and burns the rod stabilizing tile, so that the rod stabilizing tile is blocked;
2. when the drilling rod is replaced by the stabilizer rod drilling construction, as the inclined stabilizer bars are welded around the stabilizer rod, the diameter of the stabilizer rod is larger than that of the drill rod, the stabilizer rod tile needs to be detached when the stabilizer rod is drilled, and the stabilizer rod tile is reinstalled after the stabilizer rod passes through. The stabilizer bar tile needs to be manually removed, and the removal of the stabilizer bar tile is time-consuming and labor-consuming.
The patent document with the application number of 201220144882.5 discloses a hydraulic rod supporter of a raise boring machine, which comprises a frame bottom plate, be equipped with left picture peg spout and right picture peg spout on the frame bottom plate, be equipped with between left picture peg spout and the right picture peg spout and hold up pole picture peg I, hold up pole picture peg II, hold up pole picture peg I's outside is equipped with the picture peg outer limit baffle I that links to each other with left picture peg spout and right picture peg spout, hold up pole picture peg II's outside is equipped with the picture peg outer limit baffle II that links to each other with left picture peg spout and right picture peg spout, be equipped with between hold up pole picture peg I and the hold up pole picture peg II and be located picture peg inner limit baffle I, picture peg inner limit baffle II that are located the frame bottom plate, hold up pole picture peg I, hold up pole picture peg II link to each other through left hold up pole hydro-cylinder and right pole hydro-cylinder, hold up pole picture peg I is equipped with the ear seat respectively on the hold up pole picture peg II, be equipped with the roller shaft on the ear seat, be equipped with the gyro wheel on the roller shaft. Although the hydraulic rod centering device can realize automatic rod centering, in the rod centering process, the sliding of the rod centering insert plate I and the rod centering insert plate II is not easy to keep consistent, and the rod centering center and the drill rod center are still easy to generate different axes and eccentric conditions, so that the drill rod is still easy to damage.
Disclosure of Invention
The invention mainly aims to provide a balance bar structure of a raise boring machine, and aims to solve the problems that when the existing balance bar structure of the raise boring machine is used for supporting a drill rod, the drill rod is not coaxial with the positioning center of the balance bar structure or large eccentricity is easy to occur.
In order to achieve the above object, the present invention provides a raise boring machine handrail structure, comprising:
the base bottom plate is provided with a first through hole for a drill rod to pass through, four limit grooves are concavely formed in the base bottom plate, each limit groove extends from the edge of the first through hole to the four corners of the base bottom plate, two groove edges of each limit groove along the extending direction of the limit groove are respectively a first base limit edge and a second base limit edge, the base bottom plate is provided with a first symmetrical line and a second symmetrical line which are mutually orthogonal, and two adjacent limit grooves are symmetrical about the first symmetrical line or the second symmetrical line;
the rocker arm roller assembly comprises four groups which are respectively arranged in the four limiting grooves, and the rocker arm roller assembly comprises rollers;
the roller driving oil cylinder is used for driving four rollers to be close to or far away from the drill rod, when the rollers are closest to the drill rod, the rollers just collide with the first base limiting edge, and when the rollers are furthest away from the drill rod, the rollers just collide with the second base limiting edge.
Preferably, the rocker arm roller assembly further comprises a rocker arm, the rocker arm comprises a shaft sleeve, oil cylinder connecting parts and roller mounting parts, the oil cylinder connecting parts and the roller mounting parts are formed by protruding from two sides of the shaft sleeve, the rocker arm is rotatably mounted in the limiting groove through the shaft sleeve, the roller driving oil cylinders comprise two symmetrical parts about a second symmetry line, two ends of each roller driving oil cylinder are respectively rotatably connected with the oil cylinder connecting parts of the two rocker arms, and the rollers are rotatably mounted on the roller mounting parts; when the roller driving oil cylinder extends, the roller is close to the drill rod, and when the roller driving oil cylinder retracts, the roller is far away from the drill rod.
Preferably, the raise boring machine handrail structure further comprises a roller cover plate, the roller cover plate is arranged opposite to the base bottom plate, and one end of the rocker arm, which is away from the base bottom plate, is rotatably arranged on the roller cover plate; the center of the roller cover plate is provided with a second through hole for the drill rod to pass through.
Preferably, the roller cover plate is provided with two first limit protrusions symmetrical about a second symmetry line in a protruding manner, and two second limit protrusions symmetrical about the first symmetry line in a protruding manner; the first limiting protrusion is provided with two first cover plate limiting edges which are symmetrical about a first symmetry line, the first cover plate limiting edges correspond to the first base limiting edges in position, the second limiting protrusion is provided with two second cover plate limiting edges which are symmetrical about a second symmetry line, and the second cover plate limiting edges correspond to the second base limiting edges in position.
Preferably, the rocker roller assembly further comprises: the rocker arm shaft is arranged in the shaft sleeve through the rocker arm composite bearing, and the rocker arm is connected between the base bottom plate and the roller cover plate through the rocker arm shaft; the roller is arranged on a roller shaft through a roller bearing, and the roller shaft is arranged on the roller mounting part.
Preferably, rocker arm seals are arranged at two ends of the shaft sleeve along the axis of the shaft sleeve, and roller seals are arranged at two ends of the roller along the axis of the roller.
Preferably, the raise boring machine handrail structure further comprises a host base, and the base bottom plate and the roller cover plate are installed on the host base.
Preferably, a slag guide cylinder is arranged at the bottom of the base bottom plate, and a base sealing piece is arranged between the slag guide cylinder and the base bottom plate.
Preferably, the drill rod may also be a stabilizer rod.
The invention also provides a raise boring machine, which comprises the raise boring machine handrail structure.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
according to the invention, four limiting grooves for limiting the movement positions of the four rollers are formed in the base of the base plate, and when the base plate of the base plate is processed by a machine tool, the center points of the four limiting grooves are ensured to be consistent with the center points of the four rollers; when the roller driving oil cylinder drives each roller to approach the drill rod to be contacted with the drill rod, the rollers are limited by the limiting edges of the first base, diagonal intersection points of the four rollers are arranged on the axis of the drill rod, the rollers are used for righting the drill rod, when the drill rod is unevenly stressed by unbalanced load, the rollers are supported by the limiting edges of the first base, acting force applied by the drill rod to the rollers is transferred to the rocker arm through the roller shaft, the rocker arm is transferred to the rocker arm shaft through the shaft sleeve, the rocker arm shaft is transferred to the base bottom plate where the limiting edges of the first base are arranged, and radial force is not transferred to the roller driving oil cylinder, so that the stress of the rollers is reduced, the roller driving oil cylinder is not stressed, the stability of the structure of the support rod is ensured, and the service life is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a conventional stabilizer bar tile stabilizer bar structure in the background of the invention;
FIG. 2 is a split structural view of the conventional boom shoe boom structure of FIG. 1;
FIG. 3 is a block diagram of a raise boring machine rail structure according to an embodiment of the present invention;
FIG. 4 is a mounting block diagram of the raise boring machine rail structure set forth in FIG. 3;
FIG. 5 is a block diagram of a roller cover plate in the raise boring machine rail structure set forth in FIG. 3;
FIG. 6 is a block diagram of a base bottom plate in the raise boring machine rail structure set forth in FIG. 3;
FIG. 7 is a block diagram of a rocker roller assembly in the raise boring machine rail structure set forth in FIG. 3;
fig. 8 is a split structural view of the raise boring machine rail structure proposed in fig. 3.
Description of reference numerals in the background:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1’ | Stable rod tile | 3’ | Round head screw |
| 2’ | Base seat |
The reference numerals of the invention illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Base bottom plate | 37 | Rocker arm seal |
| 11 | First through hole | 38 | Roller seal |
| 12 | Limiting groove | 4 | Roller driving oil cylinder |
| 13 | First base limit edge | 5 | Roller cover plate |
| 14 | Limiting edge of second base | 51 | Second through hole |
| 2 | Drill rod | 52 | First limit protrusion |
| 3 | Rocker arm roller assembly | 53 | Second limit protrusion |
| 31 | Roller wheel | 54 | Limiting edge of first cover plate |
| 32 | Rocker arm | 55 | Limiting edge of second cover plate |
| 321 | Shaft sleeve | 6 | Main unit base |
| 322 | Oil cylinder connecting part | 7 | Slag guide cylinder |
| 323 | Roller mounting part | 8 | Base seal |
| 33 | Rocker arm shaft | 9 | Stabilizer bar |
| 34 | Rocker arm composite bearing | M | First line of symmetry |
| 35 | Roller shaft | N | Second line of symmetry |
| 36 | Roller bearing |
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.
The invention provides a raise boring machine handrail structure.
Referring to fig. 2 to 8, the raise boring machine handrail structure includes:
the base bottom plate 1 is provided with a first through hole 11 in the center for the drill rod 2 to pass through, four limit grooves 12 are concavely formed on the base bottom plate 1, each limit groove 12 extends from the edge of the first through hole 11 to the four corners of the base bottom plate 1, two groove edges of each limit groove 12 along the extending direction are respectively a first base limit edge 13 and a second base limit edge 14, the base bottom plate 1 is provided with a first symmetrical line M and a second symmetrical line N which are mutually orthogonal, and two adjacent limit grooves 12 are symmetrical about the first symmetrical line M or the second symmetrical line N;
the rocker arm roller assembly 3 comprises four groups which are respectively arranged in the four limiting grooves 12, and the rocker arm roller assembly 3 comprises rollers 31;
the roller driving oil cylinders 4 are used for driving four rollers 31 to be close to or far away from the drill rod 2, when the rollers 31 are closest to the drill rod 2, the rollers 31 just collide with the first base limiting edge 13, and when the rollers 31 are furthest away from the drill rod 2, the rollers 31 just collide with the second base limiting edge 14.
In the conventional embodiment, the drill rod is righted by adopting a stabilizer bar tile, the drill rod is easy to be subjected to bending moment by sliding friction between the drill rod and the stabilizer bar tile, so that the service life is low, in some improved drill rod righting structures, for example, the hydraulic rod centralizer of the raise boring machine with the application number of 201220144882.5 in the background art is adopted, and the four rollers in the hydraulic rod centralizer are in rolling contact, when the four rollers are opened or contracted, the centers of the four rollers cannot be ensured to be consistent with the axial centers of the drill rod due to the matching reasons between the inserting plate sliding grooves and the rod inserting plates, and the drill rod is subjected to direct stress by the four rollers under the condition of unbalanced load, so that the positions of the four rollers are more easily deviated due to uneven stress, and the righting effect on the drill rod is lost.
In the present embodiment, four limiting grooves 12 for limiting the movement positions of the four rollers 31 are formed in the base plate 1, so that the center points of the four limiting grooves 12 are consistent with the center points of the four rollers when the base plate 1 is machined by a machine tool; when the roller driving oil cylinders 4 drive the rollers 31 to approach the drill rod 2 to be contacted with the drill rod 2, the rollers 31 are limited by the first base limiting edge 13, diagonal intersection points of the four rollers 31 are arranged on the axis of the drill rod 2, the rollers 31 straighten the drill rod 2, when the drill rod 2 is unevenly stressed by unbalanced load, the rollers 31 are supported by the first base limiting edge 13, radial force transmitted to the rollers 31 by the drill rod 2 is transmitted to the rocker arms 32 through the roller shafts 35, the rocker arms 32 are transmitted to the rocker arms 33 through the shaft sleeves 321, and the rocker arms 33 are transmitted to the base bottom plate 1 where the first base limiting edge 13 is located, so that stress of the rollers 31 is reduced, the roller driving oil cylinders 4 are not stressed, stability of the structure of the support rod is guaranteed, and service life is prolonged.
And when the roller driving oil cylinder 4 drives each roller 31 to open outwards, the rollers 31 are ensured to open symmetrically according to the required direction due to the limiting effect of the limiting edge 14 of the second base, and the center point of each roller 31 when opening and closing is always on the axis of the drill rod 2, so that the stability of the structure of the support rod is further ensured.
Further, the rocker arm roller assembly 3 further includes a rocker arm 32, the rocker arm 32 includes a shaft sleeve 321, an oil cylinder connecting portion 322 and a roller mounting portion 323 protruding from both sides of the shaft sleeve 321, the rocker arm 32 is rotatably mounted in the limiting groove 12 through the shaft sleeve 321, the roller driving oil cylinder 4 includes two symmetrical portions about a second symmetry line N, two ends of each roller driving oil cylinder 4 are respectively rotatably connected with the oil cylinder connecting portions 322 of the two rocker arms 32, and the roller 31 is rotatably mounted on the roller mounting portion 323; when the roller driving cylinder 4 is extended, the roller 31 is close to the drill rod 2, and when the roller driving cylinder 4 is retracted, the roller 31 is far away from the drill rod 2.
In the conventional embodiment, the moving direction of the roller is consistent with the extending and contracting direction of the driving oil cylinder, and the acting force applied by the drill rod to the roller is transmitted to the driving oil cylinder, so that the driving oil cylinder is easy to damage, and the service life of the whole righting structure is influenced. In this embodiment, each roller 31 is disposed on a rotatable rocker arm 32, each two rollers 31 control the respective rollers 31 to approach or separate from each other through the expansion and contraction of a roller driving cylinder 4, when the two rollers driven by the roller driving cylinder 4 approach each other, the two rollers 31 approach the drill rod 2 and approach the first base limit edge 13, and when the two rollers separate from each other, the two rollers also separate from the drill rod 2 and approach the second base limit edge 14, and the force is shared by the first base limit edge 13 and the second base limit edge 14, so that the service life of the roller driving cylinder 4 is prolonged.
Further, the raise boring machine handrail structure further comprises a roller cover plate 5, the roller cover plate 5 is arranged opposite to the base bottom plate 1, and one end of the rocker arm 32, which is away from the base bottom plate 1, is rotatably arranged on the roller cover plate 5; the center of the roller cover plate 5 is provided with a second through hole 51 for the drill rod to pass through.
The rocker arm roller assemblies 3 are connected between the opposite base bottom plate 1 and the roller cover plate 5, so that the mechanical strength of the whole structure is increased, and the structure is more stable.
Further, two first limit protrusions 52 symmetrical about the second symmetry line N and two second limit protrusions 53 symmetrical about the first symmetry line M are formed on the roller cover 5 in a protruding manner; the first limiting protrusion 52 has two first cover plate limiting edges 54 symmetrical about a first symmetry line M, the first cover plate limiting edges 54 correspond to the first base limiting edges 13 in position, the second limiting protrusion 53 has two second cover plate limiting edges 55 symmetrical about a second symmetry line N, and the second cover plate limiting edges 55 correspond to the second base limiting edges 14 in position.
The invention sets a plurality of limit edges which are consistent with the positions on the base bottom plate 1 on the roller cover plate 5, namely, when one end of each roller 31 is limited by the first base limit edge 13, the other end is limited by the first cover plate limit edge 54; when one end of each roller 31 is limited by the second base limiting edge 14, the other end is limited by the second cover plate limiting edge 55, so that the stress of the roller 31 and the roller driving oil cylinder 4 is reduced, the service life of the centralizing structure is prolonged, and the structure is firmer.
Further, the rocker roller assembly 3 further includes: the rocker arm shaft 33 is arranged in the shaft sleeve 321 through the rocker arm composite bearing 34, and the rocker arm 32 is connected between the base bottom plate 1 and the roller cover plate 5 through the rocker arm shaft 33; the roller 31 is mounted on a roller shaft 35 via a roller bearing 36, and the roller shaft 35 is mounted on the roller mounting portion 323.
Further, the shaft sleeve 321 is provided with rocker arm seals 37 along both ends of its axis, and the roller 31 is provided with roller seals 38 along both ends of its axis.
The rocker arm roller assembly 3 is designed with reliable dustproof and waterproof sealing, particle abrasion is avoided, and damage caused by sliding friction is avoided.
Further, the raise boring machine handrail structure further comprises a host base 6, and the base bottom plate 1 and the roller cover plate 5 are installed on the host base 6.
The centering support rod structure is arranged on a main machine assembly of a raise boring machine through a main machine base 6, and when the centering support rod acts: the roller driving oil cylinder 4 stretches out to drive the rocker arm roller assembly 3 to shrink inwards, when the roller group reaches the limit groove of the roller cover plate 5 and the base bottom plate 1, the four groups of rollers reach the design position, namely the intersection point of the diagonal lines of the axes of the four rollers is the axis of the drill rod, so that the drill rod is centered and supported, and a gap of 0.2-0.5mm is reserved between the roller and the drill rod at the position of the centered and supported rod.
In the centering rod state, radial force of the drill rod 2 to the rocker arm roller assembly 3 is transmitted to the rocker arm shaft 33, the rocker arm shaft 33 is transmitted to the roller cover plate 5 and the base bottom plate 1, and the roller driving oil cylinder 4 is not theoretically subjected to any component force in the working state due to the effect of the limiting groove, so that the stability of the centering rod with the structure is maintained.
Further, a slag guide cylinder 7 is arranged at the bottom of the base bottom plate 1, and a base sealing piece 8 is arranged between the slag guide cylinder 7 and the base bottom plate 1.
Further, the drill rod 2 may also be a stabilizer rod 9.
The stabilizer bar 9 compares the stabilizer bar 2 and is distinguished that has oblique stabilizer bar at its week welding, consequently when need change stabilizer bar brill, need open righting mechanism, release centering stabilizer bar, change stabilizer bar 9 with drilling rod 2, roller drive cylinder 4 withdraws, rocking arm roller assembly 3 opens, release centering stabilizer bar to drilling rod 2, when roller drive cylinder 4 is flexible has been guaranteed to the spacing groove of roller apron board 5 and base bottom plate 1 design, rocking arm roller assembly 3 opens and contracts according to required direction.
The novel handrail structure changes the original fixed structure into the movable structure controlled by the oil cylinder, changes the sliding contact of the drill rod and the stabilizer shoe into the rolling contact of the drill rod and the rocker roller, and greatly reduces the construction time by adopting the novel handrail structure design, and the roller rocker structure 3 is driven to open by the roller driving oil cylinder 4 during the drilling construction of the stabilizer rod, so that the drill rod is stabilized to pass freely, and the working strength of the link of replacing the rod is removed. Meanwhile, the drill rod is in rolling contact with the rocker arm roller, so that abrasion is reduced.
The invention also provides a raise boring machine, which comprises a raise boring machine support rod structure, wherein the specific structure of the raise boring machine support rod structure refers to the embodiment, and the raise boring machine support rod structure adopts all the technical schemes of all the embodiments, so that the raise boring machine support rod structure also has all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.
Claims (8)
1. The utility model provides a raise boring machine handrail structure which characterized in that includes: the base bottom plate is provided with a first through hole for a drill rod to pass through, four limit grooves are concavely formed in the base bottom plate, each limit groove extends from the edge of the first through hole to the four corners of the base bottom plate, two groove edges of each limit groove along the extending direction of the limit groove are respectively a first base limit edge and a second base limit edge, the base bottom plate is provided with a first symmetrical line and a second symmetrical line which are mutually orthogonal, and two adjacent limit grooves are symmetrical about the first symmetrical line or the second symmetrical line; the rocker arm roller assembly comprises four groups which are respectively arranged in the four limiting grooves, and the rocker arm roller assembly comprises rollers; the roller driving oil cylinder is used for driving the four rollers to be close to or far away from the drill rod, when the rollers are closest to the drill rod, the rollers just abut against the first base limiting edge, and when the rollers are farthest from the drill rod, the rollers just abut against the second base limiting edge;
the rocker arm roller assembly further comprises a rocker arm, the rocker arm comprises a shaft sleeve, oil cylinder connecting parts and roller mounting parts, the oil cylinder connecting parts and the roller mounting parts are formed by protruding from two sides of the shaft sleeve, the rocker arm is rotatably mounted in the limiting groove through the shaft sleeve, the roller driving oil cylinders comprise two symmetrical parts about a second symmetry line, two ends of each roller driving oil cylinder are respectively rotatably connected with the oil cylinder connecting parts of the two rocker arms, and the rollers are rotatably mounted on the roller mounting parts; when the roller driving oil cylinder extends, the roller is close to the drill rod, and when the roller driving oil cylinder retracts, the roller is far away from the drill rod.
2. The raise boring machine rail structure of claim 1, further comprising a roller cover plate disposed opposite the base plate, and wherein an end of the rocker arm facing away from the base plate is rotatably mounted to the roller cover plate; the center of the roller cover plate is provided with a second through hole for the drill rod to pass through.
3. The raise boring machine handrail structure as claimed in claim 2, wherein the roller cover plate is formed with two first limit protrusions symmetrical about a second symmetry line and two second limit protrusions symmetrical about the first symmetry line; the first limiting protrusion is provided with two first cover plate limiting edges which are symmetrical about a first symmetry line, the first cover plate limiting edges correspond to the first base limiting edges in position, the second limiting protrusion is provided with two second cover plate limiting edges which are symmetrical about a second symmetry line, and the second cover plate limiting edges correspond to the second base limiting edges in position.
4. The raise boring machine rail structure of claim 1, wherein the rocker roller assembly further comprises: the rocker arm shaft is arranged in the shaft sleeve through the rocker arm composite bearing, and the rocker arm is connected between the base bottom plate and the roller cover plate through the rocker arm shaft; the roller is arranged on a roller shaft through a roller bearing, and the roller shaft is arranged on the roller mounting part.
5. The raise boring machine rail structure of claim 4, wherein the shaft sleeve is provided with rocker seals along both ends of its axis and the roller is provided with roller seals along both ends of its axis.
6. The raise boring machine rail structure of claim 2, further comprising a host base, wherein the base floor and the roller cover are mounted to the host base.
7. The raise boring machine handrail structure of claim 6, wherein a slag guiding cylinder is arranged at the bottom of the base bottom plate, and a base sealing member is arranged between the slag guiding cylinder and the base bottom plate.
8. A raise boring machine, characterised in that it comprises a raise boring machine rail structure as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242599.4A CN109025861B (en) | 2018-10-24 | 2018-10-24 | Raise boring machine handrail structure and raise boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811242599.4A CN109025861B (en) | 2018-10-24 | 2018-10-24 | Raise boring machine handrail structure and raise boring machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109025861A CN109025861A (en) | 2018-12-18 |
| CN109025861B true CN109025861B (en) | 2023-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811242599.4A Active CN109025861B (en) | 2018-10-24 | 2018-10-24 | Raise boring machine handrail structure and raise boring machine |
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| CN (1) | CN109025861B (en) |
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| CN111287678B (en) * | 2020-03-18 | 2021-03-16 | 中煤科工集团西安研究院有限公司 | Open-top drill rod limiter with adjustable limiting range |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN208934621U (en) * | 2018-10-24 | 2019-06-04 | 湖南创远高新机械有限责任公司 | Raise boring machine handrail structure and raise boring machine |
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| CN109025861A (en) | 2018-12-18 |
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