CN219365936U - Large-caliber cluster down-the-hole hammer with front guide device - Google Patents
Large-caliber cluster down-the-hole hammer with front guide device Download PDFInfo
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- CN219365936U CN219365936U CN202320788644.6U CN202320788644U CN219365936U CN 219365936 U CN219365936 U CN 219365936U CN 202320788644 U CN202320788644 U CN 202320788644U CN 219365936 U CN219365936 U CN 219365936U
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- hole hammer
- lower flange
- hole
- flange
- hammer
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a large-caliber cluster type down-the-hole hammer with a front guide device, and belongs to the field of drilling equipment. The device comprises an upper flange, an outer cylinder body and a lower flange, wherein the upper flange and the lower flange are respectively arranged at the upper end and the lower end of the outer cylinder body, a plurality of down-the-hole hammer monomers are arranged in the outer cylinder body, the down-hole hammer monomers are connected between the upper flange and the lower flange through mounting holes on the upper flange and the lower flange, a front guide device is vertically arranged in the middle of the bottom of the lower flange, the front guide device comprises a guide cylinder body, a pressure plate and connecting support legs, the pressure plate is fixedly connected to the upper end of the guide cylinder body, the diameter of the pressure plate is larger than that of the cross section of the guide cylinder body, one end of each connecting support leg is connected to the lower flange, and the other end of each connecting support leg is connected to the pressure plate. The utility model is applied to drilling in the field of rescue, ensures the verticality of reaming of the large-caliber cluster down-the-hole hammer, and can be used for drilling in the field of pile foundations by disassembling the front guide device, thereby having good universality.
Description
Technical Field
The utility model belongs to a down-the-hole hammer, in particular to a large-caliber cluster down-the-hole hammer with a front guide device.
Background
When mine accidents occur in the mining process, the advanced emergency rescue technology has important significance for reducing the loss of safety production accidents. Most disaster accidents do not directly hurt the body of people, often the roadway collapses to block the escape passage, and trapped people die due to poisoning, compression, lack of food, water and the like. The traditional rescue mode is to approach trapped personnel by a direct roadway penetrating or new roadway driving method, when a roof is in a falling state, is permeable and brings out mud stones to deposit to seriously block a roadway, the method is difficult to implement, takes a lot of time, has a large number of uncertain factors of underground environment, and has a low success rate of rescue. The drilling rescue technology is a novel emergency rescue technology which is raised in recent years, underground trapped personnel are detected by drilling small-diameter holes from the ground, and if the trapped personnel are found, the trapped personnel can be lifted to the ground through the large-diameter holes.
The down-the-hole hammer is a common drilling tool, in the drilling process, compressed air enters the inside of a down-the-hole hammer guide rod through a drill rod, drives an internal device to impact a down-the-hole hammer drill bit in a reciprocating manner, transmits impact energy to rock, directly pulverizes the rock into rock scraps under the action of impact load, and simultaneously utilizes the compressed air to blow the rock scraps out of the drill hole, so that the purpose of drilling the hole is achieved. At present, the conventional cluster type down-the-hole hammer has low requirement on the verticality of drilling, but in the field of rescue, the purpose of accurately penetrating a roadway is required to be achieved by drilling a large-caliber rescue channel, so that the verticality of drilling cannot be ensured in the drilling process of the conventional cluster type down-the-hole hammer, the requirement on accurately penetrating the roadway of the rescue drilling cannot be met, and the rescue opportunity is easily delayed.
Disclosure of Invention
The utility model aims to provide a large-caliber cluster type down-the-hole hammer with a front guide device, which overcomes the defect that the verticality of a drilling hole cannot be ensured by a conventional cluster type down-the-hole hammer in the field of emergency rescue in the prior art.
The utility model is realized by adopting the following technical scheme:
the utility model provides a take leading device's heavy-calibre cluster type down-the-hole hammer, includes flange, outer barrel, lower flange, upper flange and lower flange are installed respectively in the upper and lower both ends of outer barrel, the inside a plurality of down-the-hole hammer monomers that are equipped with of urceolus, a plurality of down-the-hole hammer monomers pass through the mounting hole on upper flange and the lower flange and connect between upper flange and the lower flange, install leading device perpendicularly in the middle of the lower flange bottom, leading device includes guide cylinder, pressure disk and linking leg, pressure disk fixed connection is in guide cylinder upper end, and the diameter of pressure disk is greater than the diameter of guide cylinder cross section, linking leg one end is connected on the lower flange, and the other end is connected on the pressure disk.
Furthermore, the front end of the guide cylinder is provided with a conical head.
Further, friction protrusions are arranged at the bottom of the pressure plate.
Further, a drill bit mounting hole is formed in the front end of the hammer head of the down-the-hole hammer monomer.
Further, the connecting support leg is detachably connected with the lower flange.
Furthermore, the connection support leg and the lower flange are detachably connected in a mode that the connection support leg is fixedly connected to the lower flange through a bolt.
Further, the number of the down-the-hole hammer monomers is four, and the four down-the-hole hammer monomers are circumferentially and uniformly distributed at the bottom of the lower flange.
Further, the number of the down-the-hole hammer monomers is five, wherein the circumferences of the hammer heads of the four down-the-hole hammer monomers are uniformly distributed at the bottom of the lower flange, and one hammer head of the down-the-hole hammer monomers is arranged at the center of the lower flange.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the front guide device is arranged on the lower flange, the outer diameter of the guide cylinder of the front guide device is consistent with the aperture of the small-caliber guide hole, the front guide device is inserted into the vertical small-caliber guide hole which is drilled in the prior art in the construction process, the front guide device ensures the verticality of reaming of the large-caliber cluster down-the-hole hammer under the guidance of the small-caliber guide hole, and the front guide device is detachable, so that the front guide device can be detached to be used as the cluster down-the-hole hammer applied to the pile foundation field, and the universality is good.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a bottom view of the present utility model.
Fig. 3 is a schematic perspective view of the present utility model.
Fig. 4 is a schematic perspective view of a front guide device of the present utility model.
Fig. 5 is a schematic view of the structure of the present utility model in its operating state.
In the figure: 1. an upper flange; 2. an outer cylinder; 3. a lower flange; 4. a down-the-hole hammer monomer; 41. a hammer head; 42. a drill mounting hole; 5. a front guide device; 51. a guide column; 52. a conical head; 53. a pressure plate; 54. friction protrusions; 55. connecting the supporting legs; 56. a bolt; 6. drilling holes with large caliber; 7. and a small-caliber pilot hole.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Example 1: as shown in fig. 1 to 4, the large-caliber cluster type down-the-hole hammer with the front guide device in the embodiment comprises an upper flange 1, an outer cylinder body 2 and a lower flange 3, wherein the upper flange 1 and the lower flange 3 are respectively arranged at the upper end and the lower end of the outer cylinder body 2, four down-the-hole hammer monomers 4 are arranged in the outer cylinder body 2, the four down-hole hammer monomers 4 are connected between the upper flange 1 and the lower flange 3 through mounting holes on the upper flange 1 and the lower flange 3, and hammerheads 41 of the four down-the-hole hammer monomers 4 are uniformly distributed on the lower flange 3 in a circumference manner; the middle of the bottom of the lower flange 3 is vertically provided with a front guide device 5, the front guide device 5 comprises a guide cylinder 51, a pressure plate 53 and connecting support legs 55, the pressure plate 53 is fixedly connected to the upper end of the guide cylinder 51, the diameter of the pressure plate 53 is larger than that of the cross section of the guide cylinder 51, one end of each connecting support leg 55 is connected to the lower flange 3, and the other end of each connecting support leg 55 is connected to the pressure plate 53.
Specifically, in order to facilitate alignment with the small-caliber pilot hole 7, the front end of the guide cylinder 51 is provided with a conical head 52; the bottom of the pressure plate 53 is provided with a friction bulge 54 for increasing the friction force between the pressure plate 53 and the upper edge of the small-caliber pilot hole 7; in order to facilitate the installation of the drill bit, the front end of the hammer head 41 of the down-the-hole hammer monomer 4 is provided with a drill bit installation hole 42; the connecting support leg 55 is detachably connected with the lower flange 3 in such a way that the connecting support leg 55 is fixedly connected with a threaded hole on the lower flange 3 through a bolt 56.
The working principle of the embodiment is as follows: as shown in fig. 4, a vertical small-caliber pilot hole 7 is punched at an operation position, a guide cylinder 51 of a pilot device 5 is vertically inserted into the small-caliber pilot hole 7, the outer diameter of the guide cylinder 51 is consistent with the aperture of the small-caliber pilot hole 7, the length of the small-caliber pilot hole 7 plays a guide role, the whole machine keeps a vertical state during large-caliber reaming, a pressure plate 53 is tightly pressed on the outer edge of the top of the small-caliber pilot hole 7, friction force between the pressure plate 53 and the outer edge of the top of the small-caliber pilot hole 7 is increased by friction protrusions 54, accordingly, the amplitude of left-right shaking of the whole machine during large-caliber reaming can be greatly reduced by the pressure plate 53, the down-hole hammer 4 is used for smashing rocks into rock scraps through reciprocating motion during construction, large-caliber reaming is further realized, the small-caliber pilot hole 7 can be guaranteed to completely advance the pilot device 5 in the small-caliber pilot hole 7 during large-caliber reaming, and the verticality of the cluster down-hole hammer is guaranteed.
Example 2: the number of the down-the-hole hammer monomers 4 in the embodiment is five, wherein the hammerheads 41 of the four down-the-hole hammer monomers 4 are uniformly distributed at the bottom of the lower flange 3 in circumference, and the hammerhead 41 of one down-the-hole hammer monomer 4 is arranged in the center of the lower flange 3 and is positioned at the rear end of the front guide device 5. When the front guide device 5 is installed on the down-the-hole hammer, the down-the-hole hammer is used for drilling operation with high perpendicularity requirement in the field of rescue, the hammer heads 8 of the down-the-hole hammer monomers 4 around the front guide device 5 work, the hammer heads 8 of the down-the-hole hammer monomers 4 positioned in the center of the lower flange 3 do not work, when the front guide device 5 is detached from the down-the-hole hammer, the down-the-hole hammer is used for drilling operation with low perpendicularity requirement in the field of pile foundation, and the hammer heads 8 of the five down-the-hole hammer monomers 4 work simultaneously.
The device of this embodiment can be obtained through repacking conventional cluster down-the-hole hammer, and the conventional cluster down-the-hole hammer of installation leading device 5 can be applied to the drilling operation that the hole straightness requirement is high in the rescue field, and the conventional cluster down-the-hole hammer of dismantling leading device 5 can be applied to the drilling operation that the pile foundation field straightness requirement is low, has increased the general performance of this cluster down-the-hole hammer. Other contents of this embodiment are the same as those of embodiment 1.
Claims (8)
1. The utility model provides a take leading heavy-calibre cluster down-the-hole hammer of righting device, includes flange (1), urceolus body (2), lower flange (3), install both ends about outer barrel (2) respectively with lower flange (3) on, the inside a plurality of down-the-hole hammer monomer (4) that are equipped with of urceolus body (2), a plurality of down-the-hole hammer monomer (4) are connected between flange (1) and lower flange (3) through the mounting hole on flange (1) and lower flange (3), its characterized in that: the guiding device (5) is vertically installed in the middle of the bottom of the lower flange (3), the guiding device (5) comprises a guiding cylinder (51), a pressing plate (53) and connecting support legs (55), the pressing plate (53) is fixedly connected to the upper end of the guiding cylinder (51), the diameter of the pressing plate (53) is larger than that of the cross section of the guiding cylinder (51), one end of the connecting support leg (55) is connected to the lower flange (3), and the other end of the connecting support leg is connected to the pressing plate (53).
2. The large caliber clustered down-the-hole hammer with a pilot as set forth in claim 1, wherein: the front end of the guide cylinder (51) is provided with a conical head (52).
3. The large caliber clustered down-the-hole hammer with a pilot as set forth in claim 1, wherein: the bottom of the pressure plate (53) is provided with a friction protrusion (54).
4. The large caliber clustered down-the-hole hammer with a pilot as set forth in claim 1, wherein: the front end of a hammer head (41) of the down-the-hole hammer monomer (4) is provided with a drill bit mounting hole (42).
5. The large caliber clustered down-the-hole hammer with a pilot as set forth in claim 1, wherein: the connecting support leg (55) is detachably connected with the lower flange (3).
6. A large caliber bunched down-the-hole hammer with a pilot device as claimed in claim 3, wherein: the connecting support legs (55) and the lower flange (3) are detachably connected in such a way that the connecting support legs (55) are fixedly connected to the lower flange (3) through bolts (56).
7. The large caliber clustered hole hammer with a pilot as set forth in any one of claims 1-6, wherein: the number of the down-the-hole hammer monomers (4) is four, and the four down-the-hole hammer monomers (4) are uniformly distributed at the bottom of the lower flange (3) along the circumference.
8. The large caliber clustered hole hammer with a pilot as set forth in any one of claims 1-6, wherein: the number of the down-the-hole hammer monomers (4) is five, wherein the circumferences of the hammerheads (41) of the four down-the-hole hammer monomers (4) are uniformly distributed at the bottom of the lower flange (3), and one of the hammerheads (41) of the down-the-hole hammer monomers (4) is arranged at the center of the lower flange (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788644.6U CN219365936U (en) | 2023-04-11 | 2023-04-11 | Large-caliber cluster down-the-hole hammer with front guide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320788644.6U CN219365936U (en) | 2023-04-11 | 2023-04-11 | Large-caliber cluster down-the-hole hammer with front guide device |
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| CN219365936U true CN219365936U (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320788644.6U Active CN219365936U (en) | 2023-04-11 | 2023-04-11 | Large-caliber cluster down-the-hole hammer with front guide device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117345103A (en) * | 2023-10-23 | 2024-01-05 | 国网福建省电力有限公司泉州供电公司 | Modularized cluster type hydraulic impact rock drilling tool and working method thereof |
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2023
- 2023-04-11 CN CN202320788644.6U patent/CN219365936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117345103A (en) * | 2023-10-23 | 2024-01-05 | 国网福建省电力有限公司泉州供电公司 | Modularized cluster type hydraulic impact rock drilling tool and working method thereof |
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