CN216866560U - Combined variable-caliber cluster type down-the-hole hammer - Google Patents
Combined variable-caliber cluster type down-the-hole hammer Download PDFInfo
- Publication number
- CN216866560U CN216866560U CN202121584446.5U CN202121584446U CN216866560U CN 216866560 U CN216866560 U CN 216866560U CN 202121584446 U CN202121584446 U CN 202121584446U CN 216866560 U CN216866560 U CN 216866560U
- Authority
- CN
- China
- Prior art keywords
- hammer
- annular
- hole
- caliber
- center
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a combined variable-caliber cluster down-the-hole hammer, which comprises an upper connecting device, a central hammer device and an annular hammer device, wherein the central hammer device or/and the annular hammer device are/is connected with the upper connecting device to form the variable-caliber down-the-hole hammer.
Description
Technical Field
The utility model belongs to the technical field of drilling machinery, and particularly relates to a combined variable-caliber cluster type down-the-hole hammer.
Background
Along with building scientific development, high-rise building, public road bridge roof beam, harbour pier building are more and more high to basic construction's requirement, and simple friction pile often can't satisfy pile foundation bearing capacity requirement, need adopt the pile foundation to form end-bearing pile or friction end-bearing pile in embedding the rock stratum.
Rock-socketed piles are a difficult problem of rotary drilling construction methods, a conventional drilling method adopts a cutting bit barrel drill or a gear wheel barrel drill to hold a rock core, the consumption of cutting tools is huge, cutting bits and gear wheels are replaced once or several times when one pile is drilled, and the drilling cost is high and the progress is slow.
How to improve the dig construction efficiency of dig the stake into of dig the rig soon is a difficult problem, and this difficult problem is solved well in the appearance of bunched down-the-hole hammer, and dig the rig soon and need not to reform transform, only need to support simple joint and bunched down-the-hole hammer and several air compressors to link to each other and can creep into.
When the existing cluster down-the-hole hammer is used, the cluster down-the-hole hammer is firstly connected to a rotary drilling rig, and then enters a hole bottom rock stratum part after a pipeline is connected, high-pressure gas enters an impactor so that a force application part impacts rocks, and the impactor is driven by the rotary drilling rig to rotate so as to continuously drill into the rock stratum, but the impact barrel drill has a complex integral structure and an unreasonable structural layout, the integral gas pipeline is easy to damage, and the maintenance and overhaul difficulty is high,
the existing cluster down-the-hole hammer is a cluster down-the-hole hammer with a corresponding diameter formed by selecting a corresponding number of sub-hammers with corresponding diameters according to construction apertures, and the cluster down-the-hole hammer with the corresponding diameters is required to be manufactured correspondingly for each construction aperture, so that the whole cluster down-the-hole hammer is inconvenient to use, the manufacturing cost is high, the use cost is greatly improved, and the use effect is reduced.
SUMMERY OF THE UTILITY MODEL
The combined variable-caliber cluster down-the-hole hammer is simple in structure and convenient to use, can complete one-time operation on a large-aperture hole or a small-aperture hole, improves the using effect, and is high in drilling speed.
In order to solve the technical problems, the utility model provides the following technical scheme:
a combined variable-caliber cluster down-the-hole hammer comprises an upper connecting device, a central hammer device and an annular hammer device, wherein the central hammer device or/and the annular hammer device are/is connected with the upper connecting device to form the variable-caliber down-the-hole hammer.
The following is a further optimization of the above technical solution of the present invention:
the down-the-hole hammer is combined, and the upper connecting device is fixedly connected with the central hammer device and the annular hammer device to form the large-caliber down-the-hole hammer;
in the combination II of the down-the-hole hammer, the central hammer device can be detached to be used as a small-caliber down-the-hole hammer for independent use;
and the upper connecting device and the annular hammer device are fixedly connected to form the annular cutting hammer.
Further optimization: go up connecting device and include the installation base member, install the first coupling assembling that is used for fixed connection center hammer device and the second coupling assembling that is used for fixed connection annular hammer device on the installation base member, install on the installation base member and be used for carrying out the air supply pipeline of air feed for center hammer device and annular hammer device.
Further optimization: the first connecting assembly comprises a lower joint which is fixedly installed on the installation base body and is close to the middle of the installation base body, a mounting hole is formed in the lower joint, and the mounting hole of the lower joint is communicated with a mounting cavity in the installation base body.
And (4) further optimizing: the second coupling assembling includes fixed mounting and is close to the first connection flange dish of its lower extreme position department on the installation base member surface, first connection flange dish and installation base member body coupling.
Further optimization: the air supply pipeline is including laying the branch air chamber in the lower clutch, fixedly connected with top connection on the upper end of lower clutch, centre bore and branch air chamber intercommunication in the top connection, a plurality of air supply line with branch air chamber intercommunication of fixedly connected with on the surface of lower clutch, air supply line's the end of giving vent to anger is installed on the lower terminal surface of installation base member.
Further optimization: the central hammer device comprises a central hammer and a positioning barrel, the central hammer is installed in the positioning barrel, a central sub-joint is fixedly connected to the upper end of the central hammer, and the central sub-joint is matched with the lower joint of the upper connecting device and is used for fixedly installing the central hammer on the upper connecting device.
Further optimization: the annular hammer device comprises an annular hammer body, a second connecting flange plate is fixedly mounted at the upper end of the annular hammer body, a plurality of sub-hammers are distributed in the inner wall of the annular hammer body, and an air guide pipeline used for supplying air for the sub-hammers is arranged in the annular hammer body.
Further optimization: the annular hammer body comprises an outer barrel and an inner barrel, the inner barrel is coaxially sleeved in the outer barrel, an annular interlayer is arranged between the inner barrel and the outer barrel, and the sub-hammers are fixedly arranged in the annular interlayer.
Further optimization: the air duct comprises an annular sealed air distribution chamber arranged on the annular hammer body, the upper end of the annular sealed air distribution chamber is communicated with the air supply pipeline, and the lower end of the annular sealed air distribution chamber is communicated with the air inlet of each sub-hammer.
By adopting the technical scheme, the utility model has the advantages of ingenious conception, reasonable structure, simple integral assembly and installation and convenient operation, the central hammer device or/and the annular hammer device are/is connected with the upper connecting device to form the variable-caliber down-the-hole hammer, the variable-caliber down-the-hole hammer is suitable for working conditions such as large-caliber holes, small-caliber holes, annular drilling and the like, the application range is enlarged, the variable-caliber pile holes can be realized, the application effect is improved, the drilling speed is high, the integral structure is simple, and the use is convenient.
The utility model is further illustrated with reference to the following figures and examples.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of an upper connecting device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a circular hammer apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a center hammer apparatus according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a center hammer apparatus in an embodiment of the present invention;
FIG. 6 is a schematic structural view of a heavy caliber down-the-hole hammer in an embodiment of the present invention;
FIG. 7 is a bottom view of a large caliber down-the-hole hammer in an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a circular cutting hammer according to an embodiment of the present invention;
FIG. 9 is a view showing the arrangement sequence of the hammers in example 1 of the present invention;
fig. 10 is a sequence diagram showing the arrangement of the circular hammer devices and the sub-hammers of various specifications in example 2 of the present invention.
In the figure: 1-upper connecting means; 101-upper joint; 102-gas separation chamber; 103-lower joint; 104-a gas supply pipeline; 105-a first connecting flange; 106-a shield; 107-mounting a substrate; 108-a mounting cavity; 2-a central hammer device; 201-center hammer; 202-positioning the barrel; 203-a piston; 204-hammer head; 205-wear resistant alloy mass; 206-center sub-junction; 3-a ring hammer device; 301-a second connecting flange; 302-an annular hammer body; 3021-outer cylinder; 3022-inner cylinder; 303-a hammer; 304-annular seal plenum; 305-small piston; 306-a small hammer head; 307-gas distribution pipe; 308-a ring-shaped interlayer; 309-inlet tube; 310-an outlet pipe; 311-Ring Cavity.
Detailed Description
Example 1: as shown in fig. 1-9, a combined variable-caliber cluster down-the-hole hammer comprises an upper connecting device 1, a central hammer device 2 and a ring hammer device 3, wherein the central hammer device 2 or/and the ring hammer device 3 are/is connected with the upper connecting device 1 to be combined into the variable-caliber down-the-hole hammer.
The central hammer device 2 or/and the annular hammer device 3 are/is connected with the upper connecting device 1 to form three down-the-hole hammers.
As shown in fig. 1-7, the combination is that the upper connecting device 1 is fixedly connected with the central hammer device 2 and the annular hammer device 3 to form the heavy caliber down-the-hole hammer.
In combination two, the central hammer apparatus 2 can be used independently as a small bore down-the-hole hammer, as shown in figures 4-5.
And as shown in figures 1-3 and figures 8-9, in a third combination, the upper connecting device 1 and the annular hammer device 3 are fixedly connected to form the circular cutting hammer.
The upper connecting device 1 does not use the central hammer device 2, and an upper guide head is assembled to seal the air outlet hole of the lower connector 103, so that the reaming hammer is combined for use.
As shown in fig. 2, 6 and 8, the upper connecting device 1 includes an installation base 107, a first connecting component for fixedly connecting the central hammer device 2 and a second connecting component for fixedly connecting the annular hammer device 3 are installed on the installation base 107, and an air supply pipeline for supplying air to the central hammer device 2 and the annular hammer device 3 is also installed on the installation base 107.
An installation cavity 108 is formed in the installation base body 107, the lower end of the installation cavity 108 penetrates through the installation base body 107, and the installation end of the central hammer device 2 is arranged in the installation cavity 108.
The first connecting assembly comprises a lower joint 103 fixedly mounted on a mounting base 107 and close to the middle of the mounting base, a mounting hole is formed in the lower joint 103, and the mounting hole of the lower joint 103 is communicated with a mounting cavity 108.
By this design, the upper end of the center hammer device 2 can be mounted in the mounting cavity 108, and the center hammer device 2 can be fixedly mounted on the upper connecting device 1 by connecting the mounting end of the center hammer device 2 with the lower joint 103.
The lower joint 103 can be connected in an inner hexagonal head inserting mode, and can also be connected by adopting standard conical threads.
The second connecting component comprises a first connecting flange 105 fixedly installed on the outer surface of the installation base body 107 and close to the lower end position of the first connecting flange 105, and the first connecting flange 105 is integrally connected with the installation base body 107.
The upper connecting device 1 can be fixedly connected with the annular hammer device 3 through the first connecting flange 105, and is convenient to use.
The air supply pipeline comprises an air distribution chamber 102 arranged at one end of the lower joint 103 far away from the installation base 107, an upper joint 101 is fixedly connected to one end of the lower joint 103 far away from the installation base 107, and a central hole in the upper joint 101 is communicated with the air distribution chamber 102.
The upper joint 101 is used for being connected with a drill rod of the rotary drilling rig, and a center hole in the drill rod is communicated with a center hole in the upper joint 101.
By the design, the rotary drilling rig can drive the upper connecting device 1 to work through the drill rod, external high-pressure gas enters the upper joint 101 of the upper connecting device 1 through the drilling rig and the drill rod and then enters the middle gas distributing chamber 102, and the gas distributing chamber 102 conveys the high-pressure gas into the central hammer device 2 through the lower joint 103 to provide the high-pressure gas for the central hammer device 2.
The outer surface of lower clutch 103 just is close to a plurality of gas supply lines 104 of position department fixedly connected with of gas-distributing chamber 102, a plurality of gas supply lines 104 are the annular interval in proper order and are laid along the outer surface of lower clutch 103.
The air inlet end of the air supply pipeline 104 is communicated with the air distribution chamber 102, and the air outlet end of the air supply pipeline 104 is arranged on the lower end face of the installation base body 107.
The high-pressure gas in the gas distribution chamber 102 can enter a gas supply duct 104, and the gas supply duct 104 is used for supplying gas to the annular hammer device 3.
The outside of the gas supply line 104 is provided with a barrel-shaped protective cover 106, and the protective cover 106 is fixedly mounted on a mounting base 107.
By the design, the gas supply pipeline 104 can be protected by the protective cover 106, so that the gas supply pipeline 104 is prevented from being damaged, and the using effect is improved.
Therefore, in operation, high-pressure gas enters the upper joint 101 of the upper connecting device 1 through the rotary drilling rig and the drill rod and then enters the middle gas distribution chamber 102, and the gas distribution chamber 102 distributes the high-pressure gas to the lower joint 103 and the gas supply pipeline 104 respectively, so that gas supply for the central hammer device 2 and the annular hammer device 3 is realized.
As shown in fig. 4-5, the center hammer device 2 includes a center hammer 201 and a positioning barrel 202, the center hammer 201 is installed in the positioning barrel 202, a center sub-joint 206 is fixedly connected to the upper end of the center hammer 201, and the center sub-joint 206 cooperates with the lower joint 103 to fixedly install the center hammer 201 on the upper connecting device 1.
An air inlet channel is formed in the center sub-joint 206, and the air inlet channel in the center sub-joint 206 is communicated with the air distribution chamber 102 through the lower joint 103.
A gas distribution mechanism and a piston 203 are arranged in the central hammer 201, and the gas distribution mechanism distributes high-pressure gas to drive the piston 203 to reciprocate up and down.
The lower end of the central hammer 201 is fixedly provided with a hammer head 204, and the lower end surface of the hammer head 204 is provided with a plurality of wear-resistant alloy blocks 205.
As shown in fig. 4-5, the central sub-connector 206 of the central hammer 201 is configured to be fitted with the lower connector 103 in use, so as to fixedly mount the central hammer 201 on the upper connecting device 1, thereby facilitating assembly and installation.
High-pressure gas in the gas distribution chamber 102 of the upper connecting device 1 is conveyed into the center hammer 201 through the lower connector 103, and a gas distribution mechanism in the center hammer 201 distributes the high-pressure gas, so that the high-pressure gas drives the piston 203 in the center hammer 201 to move up and down in a reciprocating manner and strike the hammer head 204 at the lower part, and the rock stratum is crushed by the wear-resistant alloy blocks 205 on the lower end surface of the hammer head 204.
After the crushing is finished, the waste gas enters a gap between the hole wall and the hammer body through a slag discharge channel of the annular hammer device 3 and is discharged out of the hole; the waste gas exhaust process carries broken rock slag which is used for discharging the rock slag out of the hole.
In this embodiment, the valve train is the prior art, and is not described herein.
As shown in fig. 3 and fig. 8 to 9, the annular hammer device 3 includes an annular hammer body 302, a mounting assembly for fixedly mounting the annular hammer device 3 on the upper connecting device 1 is fixedly mounted at the upper end of the annular hammer body 302, a plurality of sub-hammers 303 are annularly arranged at intervals in the inner wall of the annular hammer body 302, and an air duct path for supplying air to the sub-hammers 303 is provided in the annular hammer body 302.
The annular hammer body 302 comprises an outer cylinder body 3021 and an inner cylinder body 3022, the inner cylinder body 3022 is sleeved in the outer cylinder body 3021, and the inner cylinder body 3022 and the outer cylinder body 3021 are coaxially arranged.
The upper end and the lower end of the inner cylinder 3022 and the outer cylinder 3021 are fixedly connected through a packaging plate respectively.
The diameter of the outer surface of the inner cylinder 3022 is smaller than that of the outer cylinder 3021, and an annular interlayer 308 is arranged between the inner cylinder 3022 and the outer cylinder 3021.
Each sub-hammer 303 is uniformly distributed in the annular interlayer 308 at annular intervals, and the sub-hammers 303 are fixedly connected with the annular hammer body 302.
The number of the sub-hammers 303 is set according to the aperture requirement, and in the embodiment, the number of the sub-hammers 303 is 3-10, or even more.
An annular cavity 311 is arranged in the annular hammer body 302 and positioned in the middle of the inner cylinder 3022.
The annular chamber 311 is used to mount the central hammer device 2 or to contain a rock core formed after cutting the rock strata circumferentially.
The mounting assembly comprises a second connecting flange plate 301 fixedly mounted on the annular hammer body 302 and close to the upper end of the annular hammer body, and the second connecting flange plate 301 is integrally connected with the annular hammer body 302.
In this embodiment, the second connecting flange 301 may be integrally connected to the annular hammer body 302 by welding
The second connecting flange 301 is connected with the first connecting flange 105 of the upper connecting device 1 in a bolt-fitting manner, so that the annular hammer device 3 is fixedly mounted on the upper connecting device 1.
The gas guide pipeline comprises an annular sealing gas distribution chamber 304 which is arranged on the annular hammer body 302 and is positioned below the second connecting flange plate 301, and the annular sealing gas distribution chamber 304 is annularly arranged along the annular hammer body 302 layer.
The upper end of the annular sealing air distribution chamber 304 is communicated with the air supply pipeline 104 of the upper connecting device 1, and the lower end of the annular sealing air distribution chamber 304 is communicated with the air inlet hole of each sub-hammer 303.
The high-pressure gas in the gas supply pipe 104 is delivered into an annular seal distribution chamber 304, and the annular seal distribution chamber 304 is used for providing the high-pressure gas for each sub-hammer 303 as power.
A plurality of inlet pipes 309 are fixedly mounted at the upper end of the annular seal gas distribution chamber 304, the plurality of inlet pipes 309 are annularly arranged along the upper end surface of the annular seal gas distribution chamber 304, the inlet pipes 309 are communicated with the annular seal gas distribution chamber 304, and the other ends of the inlet pipes 309 are communicated with the gas supply pipeline 104.
The high pressure gas in the gas supply duct 104 may be delivered into the annular seal plenum 304 through an inlet pipe 309.
The lower end of the annular seal gas distribution chamber 304 is fixedly provided with a plurality of outlet pipes 310, the plurality of outlet pipes 310 are annularly arranged along the lower end surface of the annular seal gas distribution chamber 304, and the outlet pipes 310 are communicated with the annular seal gas distribution chamber 304.
The other end of the outlet pipe 310 is arranged above the sub-hammer 303, one end of the outlet pipe 310 close to the sub-hammer 303 is communicated with a gas distribution pipe 307, and the other end of the gas distribution pipe 307 is communicated with a gas inlet of the sub-hammer 303.
The high-pressure gas in the annular sealing gas distribution chamber 304 can be conveyed into the sub-hammers 303 through the outlet pipe 310 and the gas distribution pipe 307, so that the high-pressure gas is provided for each sub-hammer 303 as power.
In this embodiment, the number of the inlet pipes 309 and the number of the outlet pipes 310 on the annular seal gas distribution chamber 304 may be different, the number of the inlet pipes 309 is 3-6, and the number of the outlet pipes 310 is determined according to the number of the sub-hammers 303.
An air inlet on the sub-hammer 303 is formed in the upper end of the sub-hammer 303, an independent air distribution mechanism and a small piston 305 are arranged in the sub-hammer 303, and the air distribution mechanism distributes high-pressure air to drive the small piston 305 to reciprocate up and down.
The lower end of the sub-hammer 303 is fixedly provided with small hammers 306, and the small hammers 306 are respectively arranged below the annular hammer body 302.
As shown in fig. 2-3 and 8-9, the annular hammer body 302 of the annular hammer device 3 is fixedly connected with the first connecting flange 105 of the upper connecting device 1 through the second connecting flange 301, so that the annular hammer device 3 can be fixedly mounted on the upper connecting device 1.
The high-pressure gas in the gas supply pipe 104 of the upper connecting device 1 is delivered into the annular seal distribution chamber 304, and the high-pressure gas in the annular seal distribution chamber 304 provides the high-pressure gas for each sub-hammer 303 as power through the outlet pipe 310 and the distribution pipe 307.
The sub-hammer 303 utilizes high-pressure gas to drive the small piston 305 to continuously knock the small hammer head 306 at the bottom to crush the rock stratum, and the rotary drilling rig simultaneously drives the whole hammer body to rotate in the operation process, so that the whole rock surface is crushed.
After the crushing is finished, the waste gas enters a gap between the hole wall and the hammer body through a slag discharge channel of the annular hammer device 3 and is discharged out of the hole; the waste gas exhaust process carries broken rock slag which is used for discharging the rock slag out of the hole.
In this embodiment, the valve actuating mechanism in the sub-hammer 303 is the prior art and is not described herein.
In use, as shown in figures 1 to 9, the upper attachment means 1 is fixedly connected to the central hammer means 2 and the annular hammer means 3 to form a heavy caliber down-the-hole hammer for use in drilling heavy caliber holes.
The specific assembling process of the heavy-calibre down-the-hole hammer is as follows: first, the center sub-connector 206 of the center hammer 201 is fitted with the lower connector 103 for fixedly mounting the center hammer 201 on the upper connecting device 1, and the air inlet passage in the center sub-connector 206 is communicated with the air distributing chamber 102 through the lower connector 103.
Then, the annular hammer body 302 of the annular hammer device 3 is sleeved on the central hammer 201, the central hammer 201 is located in the annular cavity 311 at the moment, the diameter of the outer surface of the central hammer 201 is matched with the diameter of the inner surface of the annular cavity 311, then the annular hammer body 302 is fixedly connected with the first connecting flange 105 on the upper connecting device 1 through the second connecting flange 301, and at the moment, the annular hammer device 3 can be fixedly installed on the upper connecting device 1.
The inlet pipes 309 of the annular hammer device 3 are then connected to the corresponding gas supply lines 104 of the upper connecting device 1, respectively, and a large-diameter down-the-hole hammer can be assembled.
When the large-caliber down-the-hole hammer is used, the upper joint 101 on the upper connecting device 1 needs to be connected with a drill rod of a rotary drilling rig, the rotary drilling rig can drive the upper connecting device 1 to work through the drill rod, high-pressure gas enters the upper joint 101 of the upper connecting device 1 through the drilling rig and the drill rod and then enters the middle gas distribution chamber 102, and the gas distribution chamber 102 conveys the high-pressure gas into the central hammer device 2 through the lower joint 103 to provide the high-pressure gas for the central hammer 201.
The high-pressure gas in the gas distribution chamber 102 can be delivered into the annular seal gas distribution chamber 304 through the gas supply pipeline 104 and the inlet pipe 309, and the high-pressure gas in the annular seal gas distribution chamber 304 provides the high-pressure gas for each sub-hammer 303 as power through the outlet pipe 310 and the gas distribution pipe 307.
The operation of the central hammer 201 and the sub-hammers 303 can be used for crushing a rock stratum, the rotary drilling rig simultaneously drives the large-diameter down-the-hole hammer to integrally rotate in the operation process, the whole rock surface crushing operation is further realized, after the crushing operation is completed, waste gas enters a gap between a hole wall and a hammer body through a slag discharge channel of the annular hammer combination 3 and is discharged out of a hole, and the waste gas is discharged out of the hole to carry crushed rock slag and is used for discharging the rock slag out of the hole.
The upper connecting device 1 and the central hammer device 2 are fixedly connected and combined to form a small-caliber down-the-hole hammer, and the small-caliber down-the-hole hammer is used for drilling a small-caliber hole.
The specific assembling process of the small-caliber down-the-hole hammer is as follows: firstly, a center sub-joint 206 on a center hammer 201 is connected with a drill rod of the rotary drilling rig, and an air inlet channel in the center sub-joint 206 is communicated with an air transmission channel in the drill rod.
The rotary drilling rig can drive the central hammer 201 to work through a drill rod, and high-pressure gas is conveyed into the central hammer 201 through the drilling rig and the drill rod.
The center hammer 201 operates by using high-pressure gas as power, the high-pressure gas drives a piston 203 in the center hammer to move up and down in a reciprocating mode and strikes a hammer head 204 at the lower portion, and the rock stratum is crushed by using wear-resistant alloy blocks 205 on the lower end face of the hammer head 204.
And the rotary drilling rig drives the small-caliber down-the-hole hammer to integrally rotate simultaneously in the operation process, so that the whole rock surface is crushed, after the crushing is finished, waste gas enters a gap between the hole wall and the hammer body through a slag discharge channel of the central hammer 201 and is discharged out of the hole, and the waste gas is carried with crushed rock slag in the waste gas discharge process and is used for discharging the rock slag out of the hole.
The upper connecting device 1 and the annular hammer device 3 are fixedly connected and combined to form the annular cutting hammer, and the annular cutting hammer can be used for drilling holes.
The specific assembling process of the ring cutting hammer is as follows: firstly, the annular hammer body 302 of the annular hammer device 3 is fixedly connected with the first connecting flange 105 on the upper connecting device 1 through the second connecting flange 301, at this time, the annular hammer device 3 can be fixedly installed on the upper connecting device 1, then the inlet pipes 309 on the annular hammer device 3 are respectively communicated with the corresponding air supply pipelines 104 on the upper connecting device 1, and at this time, the annular cutting hammer can be assembled.
When the circular cutting hammer is used, the upper joint 101 on the upper connecting device 1 needs to be connected with a drill rod of a rotary drilling rig, the rotary drilling rig can drive the upper connecting device 1 to work through the drill rod, high-pressure gas enters the upper joint 101 of the upper connecting device 1 through the drilling rig and the drill rod and then enters the middle gas distribution chamber 102, the gas distribution chamber 102 conveys the high-pressure gas into the annular sealing gas distribution chamber 304 through the gas supply pipeline 104 and the inlet pipe 309, and the high-pressure gas in the annular sealing gas distribution chamber 304 provides the high-pressure gas for each sub-hammer 303 through the outlet pipe 310 and the gas distribution pipe 307 to serve as power.
The sub-hammer 303 can be used for crushing a rock stratum during working, the rotary drilling rig simultaneously drives the large-diameter down-the-hole hammer to integrally rotate in the working process, so that the whole rock surface is crushed, after the crushing is completed, waste gas enters a gap between a hole wall and a hammer body through a slag discharge channel of the annular hammer combination 3 and is discharged out of a hole, and the waste gas is discharged out of the hole to carry crushed rock slag and is used for discharging the rock slag out of the hole.
When the core completely enters the annular cavity 311 of the annular cutting hammer, the annular cutting hammer is lifted out through the rotary drilling rig, and then the core is cut off and lifted out of the hole by using a special cutting hammer head.
And then continuously repeating the previous annular groove crushing operation and coring until the size of the pile hole meets the requirement.
The upper connecting device 1 does not use the central hammer device 2, and an upper guide head is assembled to seal the air outlet hole of the lower connector 103, so that the reaming hammer is combined for use.
Example 2: referring to fig. 10, the arrangement sequence of the sub-hammers 303 of the circular hammer apparatus 3 according to embodiment 1 may also adopt the structure shown in fig. 10.
The sub-hammers 303 of the annular hammer device 3 are arranged in axial symmetry.
It will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in the embodiments described above without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims.
Claims (10)
1. The utility model provides a modular variable-bore cluster formula down-the-hole hammer which characterized in that: the variable-caliber down-the-hole hammer comprises an upper connecting device (1), a central hammer device (2) and an annular hammer device (3), wherein the central hammer device (2) or/and the annular hammer device (3) are/is connected with the upper connecting device (1) to form the variable-caliber down-the-hole hammer.
2. A combined variable caliber cluster down-the-hole hammer as set forth in claim 1, wherein: the down-the-hole hammer is combined into a whole, and the upper connecting device (1), the central hammer device (2) and the annular hammer device (3) are fixedly connected and combined into a large-diameter down-the-hole hammer;
in the combination II of the down-the-hole hammer, the central hammer device (2) is directly used as a small-caliber down-the-hole hammer independently;
and a third combination of the down-the-hole hammer is that the upper connecting device (1) and the annular hammer device (3) are fixedly connected to form an annular cutting hammer.
3. A combined variable caliber cluster down-the-hole hammer as set forth in claim 2, wherein: go up connecting device (1) including installation base member (107), install the first coupling assembling that is used for fixed connection center hammer device (2) and is used for the second coupling assembling of fixed connection annular hammer device (3) on installation base member (107), install on installation base member (107) and be used for carrying out the air supply line of air feed for center hammer device (2) and annular hammer device (3).
4. A combined variable caliber cluster down-the-hole hammer as set forth in claim 3, wherein: the first connecting assembly comprises a lower joint (103) which is fixedly installed on the installation base body (107) and is close to the middle position of the installation base body, an installation hole is formed in the lower joint (103), and the installation hole of the lower joint (103) is communicated with an installation cavity (108) in the installation base body (107).
5. The combination variable caliber cluster down-the-hole hammer of claim 4, wherein: the second connecting component comprises a first connecting flange (105) fixedly installed on the outer surface of the installation base body (107) and close to the lower end position of the first connecting flange, and the first connecting flange (105) is integrally connected with the installation base body (107).
6. The combination variable caliber cluster down-the-hole hammer of claim 5, wherein: the air supply pipeline comprises air distribution chambers (102) arranged in a lower joint (103), an upper joint (101) is fixedly connected to the upper end of the lower joint (103), a center hole in the upper joint (101) is communicated with the air distribution chambers (102), a plurality of air supply pipelines (104) communicated with the air distribution chambers (102) are fixedly connected to the outer surface of the lower joint (103), and the air outlet ends of the air supply pipelines (104) are installed on the lower end face of an installation base body (107).
7. A combined variable caliber cluster down-the-hole hammer as set forth in claim 6, wherein: the center hammer device (2) comprises a center hammer (201) and a positioning barrel (202), the center hammer (201) is installed in the positioning barrel (202), the upper end of the center hammer (201) is fixedly connected with a center sub-joint (206), and the center sub-joint (206) is matched with a lower joint (103) to be used for fixedly installing the center hammer (201) on the upper connecting device (1).
8. The combination variable caliber cluster down-the-hole hammer of claim 7, wherein: the annular hammer device (3) comprises an annular hammer body (302), a second connecting flange plate (301) is fixedly mounted at the upper end of the annular hammer body (302), a plurality of sub-hammers (303) are arranged in the inner wall of the annular hammer body (302), and an air guide pipeline used for supplying air for the sub-hammers (303) is arranged in the annular hammer body (302).
9. The combination variable caliber cluster down-the-hole hammer of claim 8, wherein: the annular hammer body (302) comprises an outer barrel body (3021) and an inner barrel body (3022), the inner barrel body (3022) is coaxially sleeved in the outer barrel body (3021), an annular interlayer (308) is arranged between the inner barrel body (3022) and the outer barrel body (3021), and the sub-hammer (303) is fixedly installed in the annular interlayer (308).
10. A combined variable caliber cluster down-the-hole hammer as set forth in claim 9, wherein: the air duct comprises an annular sealing air distribution chamber (304) arranged on the annular hammer body (302), the upper end of the annular sealing air distribution chamber (304) is communicated with the air supply pipeline (104), and the lower end of the annular sealing air distribution chamber (304) is communicated with an air inlet of each sub-hammer (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121584446.5U CN216866560U (en) | 2021-07-13 | 2021-07-13 | Combined variable-caliber cluster type down-the-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121584446.5U CN216866560U (en) | 2021-07-13 | 2021-07-13 | Combined variable-caliber cluster type down-the-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216866560U true CN216866560U (en) | 2022-07-01 |
Family
ID=82121346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121584446.5U Active CN216866560U (en) | 2021-07-13 | 2021-07-13 | Combined variable-caliber cluster type down-the-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216866560U (en) |
-
2021
- 2021-07-13 CN CN202121584446.5U patent/CN216866560U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113356753A (en) | Combined variable-caliber cluster type down-the-hole hammer | |
| EP2673450B1 (en) | Annulus ring hole drill | |
| CN101435312A (en) | Multifunctional hammer drill | |
| JP5948333B2 (en) | Combined down-the-hole hammer | |
| CN111119726B (en) | Annular cluster formula down-the-hole hammer | |
| CN111594039A (en) | Large-diameter combined type air reverse circulation down-the-hole hammer | |
| CN201087695Y (en) | High wind pressure downhole air hammer | |
| CN216866560U (en) | Combined variable-caliber cluster type down-the-hole hammer | |
| CN1766276B (en) | DTH hammer double-tube drilling equipment and drilling method thereof | |
| CN112727350A (en) | Using method of drill rod suspension type down-the-hole hammer drill and down-the-hole hammer drill | |
| CN203499555U (en) | Cut-through type reverse circulation impactor | |
| CN215859971U (en) | Annular cutting core-taking down-the-hole hammer drill | |
| CN203570197U (en) | Cut-through impactor | |
| CN204899815U (en) | Multi -functional tap of pneumatic downhole hammer three channels | |
| CN114075923A (en) | Combined drill bit of hydraulic down-the-hole hammer secant pile | |
| CN212689910U (en) | Large-diameter combined type air reverse circulation down-the-hole hammer | |
| CN201292761Y (en) | High wind pressure downhole air hammer | |
| CN104695882A (en) | Three-channel multifunctional water tap of pneumatic down-hole hammer | |
| CN212225091U (en) | Light axial air inlet type power head | |
| RU2736685C1 (en) | Submersible hydropercussion mechanism of hammer for vertical drilling of drilling and blasting wells | |
| CN213205534U (en) | Down-the-hole hammer drill | |
| CN216841420U (en) | Combined drill bit of hydraulic down-the-hole hammer secant pile | |
| CN210118112U (en) | Annular core bit for piling in rock layer | |
| CN215369677U (en) | Drill rod suspension type down-the-hole hammer drill | |
| CN217681565U (en) | Guiding mechanism for down-the-hole hammer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 271200 north of middle section of Jilin Road, Xintai Economic Development Zone, Tai'an City, Shandong Province Patentee after: Xintai Jiuyi Construction Machinery Co.,Ltd. Address before: 271200 north of middle section of Jilin Road, Xintai Economic Development Zone, Weifang City, Shandong Province Patentee before: Xintai Jiuyi Construction Machinery Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder |