CN220451794U - Rotary drilling down-the-hole hammer drill rod with variable outer diameter - Google Patents
Rotary drilling down-the-hole hammer drill rod with variable outer diameter Download PDFInfo
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- CN220451794U CN220451794U CN202321899277.3U CN202321899277U CN220451794U CN 220451794 U CN220451794 U CN 220451794U CN 202321899277 U CN202321899277 U CN 202321899277U CN 220451794 U CN220451794 U CN 220451794U
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- drill rod
- tube
- outer tube
- hammer drill
- hole hammer
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- 238000005553 drilling Methods 0.000 title claims abstract description 25
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002893 slag Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The rotary drilling down-the-hole hammer drill rod with the variable outer diameter comprises a central core tube, wherein two ends of the central core tube are respectively provided with a male connector and a female connector, the male connector is detachably connected with the output end of a rotary drilling rig, and the female connector can be connected with a pin shaft; the outer side of the male connector is circumferentially provided with a plurality of connecting grooves, a plurality of fixing plates are arranged at the connecting grooves in a matched mode, and the fixing plates can be combined into an annular structure coaxial with the central core tube; an outer tube is sleeved on the outer side of the central core tube, an upper connecting plate is arranged at one end of the outer tube, which is close to the male connector, and the upper connecting plate is detachably connected with the annular structure; the fixed plate and the outer tube are provided with a plurality of specifications. After the outer tube is fixed with the fixed plate, separation among a plurality of fixed plates can be avoided, and then stability is kept, and after the outer tube is separated for the fixed plate, the fixed plate and the outer tube with different specifications can be replaced to be connected with the central core tube, and then reducing adaptation is realized.
Description
Technical Field
The utility model relates to the technical field of drilling mechanisms, in particular to a rotary-digging down-the-hole hammer drill rod with a variable outer diameter.
Background
When the down-the-hole hammer for large-caliber pile holes works, reasonable slag discharging gaps between the drill rod and the hole wall are required to be ensured for the down-the-hole hammer for one-time hole forming in order to ensure that rock slag at the bottom of the hole is discharged out of the hole in time. If the drill rod is too thick, the gap between the drill rod and the hole wall is too small, rock slag is easy to accumulate, slag is not smooth, and the operation is influenced. If the drill rod is too thin, too large a gap is formed between the drill rod and the hole wall, the pressure of the hole is seriously reduced, and rock slag cannot be directly discharged out of the hole. Therefore, in order to ensure the operation effect, the down-the-hole hammer drill rods with corresponding calibers are generally required to be arranged on down-the-hole hammers with different calibers. This results in a large investment cost for the user.
Disclosure of Invention
In order to solve the problem of lack of the down-the-hole drill rod with variable diameter, the utility model provides a rotary-digging down-the-hole hammer drill rod with variable outer diameter.
The technical scheme of the utility model is as follows:
the rotary drilling down-the-hole hammer drill rod with the variable outer diameter comprises a central core tube, wherein two ends of the central core tube are respectively provided with a male connector and a female connector, the male connector is detachably connected with the output end of a rotary drilling rig, and the female connector can be connected with a pin shaft;
the outer side of the male connector is circumferentially provided with a plurality of connecting grooves, a plurality of fixing plates are arranged at the connecting grooves in a matched mode, and the fixing plates can be combined into an annular structure coaxial with the central core tube;
an outer tube is sleeved on the outer side of the central core tube, an upper connecting plate is arranged at one end of the outer tube, which is close to the male connector, and the upper connecting plate is detachably connected with the annular structure;
the fixed plate and the outer tube are provided with a plurality of specifications.
Through changing the down-the-hole hammer operation of different fixed plates and outer tube adaptation in different circumstances, and the connection of above-mentioned outer tube and fixed plate is detachable connection to after it separates for the fixed plate, can separate a plurality of fixed plates and dismantle, with the installation of other fixed plates of convenient different specifications.
The annular structure is circumferentially provided with a plurality of fixing holes, the upper connecting plate is provided with a plurality of connecting holes matched with the fixing holes, and the fixing holes are connected with the connecting holes through bolts. The threaded connection can be removed and can be tightened circumferentially.
In order to avoid the relative rotation of the outer tube, a plurality of connecting grooves are arranged mutually perpendicular. So that the fixing plate does not rotate again after fixing.
On the basis of the structure, further, the central opening of the annular structure is a rectangular opening matched with the connecting groove. And after the connecting grooves are matched, the connecting grooves can not rotate again.
The outer tube has a specific structure that the outer tube comprises an outer tube with the diameter larger than that of a sleeve, and a plurality of symmetrically arranged supporting tubes are arranged in the outer tube.
In order to avoid deformation of the distal end of the outer tube, the end of the outer tube remote from the male connector is provided with a plurality of straightening plates, and the straightening plates are perpendicular to the central axis of the outer tube. After the centralizing plate is installed, the centralizing plate can be supported, and deformation is avoided.
Preferably, the righting plate comprises two spaced apart plates. And can avoid deformation, can also set up other structures between the adjacent righting board for the cooperation supports central core pipe.
Preferably, a plurality of through holes are formed between the two centralizing plates, and the through holes are perpendicular to the pin shaft mounting direction of the female joint.
The centering plate has the specific structure that a round hole matched with the central core pipe is formed in the center of the centering plate, and a plurality of perforations are formed in the outer side circumference of the round hole. The relative movement of the outer tube and the central core tube can be avoided.
Preferably, the support tube penetrates the outer tube.
The utility model has the beneficial effects that: the utility model relates to a rotary-digging down-the-hole hammer drill rod with variable outer diameter, which can independently disassemble an outer tube or a fixed plate under the condition that a central core tube is not separated from the output end of a down-the-hole drill, and can replace the fixed plate and the outer tube with different specifications after disassembly.
Drawings
The aspects and advantages of the present application will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.
In the drawings:
FIG. 1 is a schematic view of a three-dimensional structure of the present utility model;
FIG. 2 is a schematic diagram of the main structure of the present utility model;
FIG. 3 is a schematic view of the structure of the central core tube of the present utility model;
FIG. 4 is a schematic view of the three-dimensional structure of the central core tube of the present utility model;
FIG. 5 is a schematic view of a structure of a fixing plate according to the present utility model;
FIG. 6 is a schematic view of the three-dimensional structure of an outer tube according to the present utility model;
FIG. 7 is a schematic view of the structure of an outer tube according to the present utility model;
the components represented by the reference numerals in the figures are:
1. a central core tube; 101. a male connector; 102. a sleeve; 103. a female joint; 104. a connection groove; 2. a fixing plate; 201. a fixing hole; 3. a bolt; 4. an outer tube; 401. an upper connecting plate; 402. an outer cylinder; 403. a support tube; 404. a righting plate; 405. and a through hole.
Detailed Description
Examples
The outer diameter-variable rotary drilling down-hole hammer drill rod shown in fig. 1 and 2 comprises a central core tube 1, two ends of the central core tube 1 are respectively provided with a male connector 101 and a female connector 103, wherein the male connector 101 is detachably connected with an output end of a rotary drilling machine, after the male connector 101 is connected with the output end of the rotary drilling machine, power can be provided to finish rotary drilling, then the female connector 103 at the other end can be connected with a pin shaft, the operation cannot be finished only through the central core tube 1, a tool for operation is required to be arranged at the outer side of the rotary drilling machine, and the outer tube 4 can be directly and fixedly connected under normal conditions, however, the diameter of the outer tube 4 is required to be selected according to actual conditions, therefore, the outer tube 4 comprises various diameter specifications, and when in use, the outer tube needs to be replaced according to conditions, the conventional replacement mode needs to be synchronously replaced with the output end of the rotary drilling machine and the pin shaft end of the rotary drilling machine, the process is very tedious, and the operation efficiency is reduced.
To this, this device has adopted different methods, namely through setting up central core pipe 1 and outer tube 4 to detachable the connection, this kind of setting up method, when changing outer tube 4 of different specifications, then can need not dismantle central core pipe 1, only need change outer tube 4 can, and the concrete mode is:
the male connector 101 is circumferentially provided with a plurality of connecting grooves 104 on the outer side, a plurality of fixing plates 2 are arranged at the connecting grooves 104 in a matched mode, the plurality of fixing plates 2 can be combined into an annular structure coaxial with the central core tube 1, the plurality of fixing plates 2 are combined into an annular structure, the annular structure can be installed in the state that the central core tube 1 is not disassembled, namely, the annular structure does not need to be sleeved at one end, and then the annular structure can be used for being matched with the connecting grooves 104 to achieve fixation.
As shown in fig. 3, 4 and 5, in the above-mentioned structure, the annular structure is connected with the outer tube 4 in such a manner that a plurality of fixing holes 201 are circumferentially provided in the annular structure, a plurality of connecting holes matched with the fixing holes 201 are provided in the upper connection plate 401, and the fixing holes 201 and the connecting holes are connected through bolts 3. The threaded connection can be removed and can be tightened circumferentially.
Also, in order to avoid the relative rotation of the outer tube 4, a plurality of the coupling grooves 104 are provided perpendicular to each other. Therefore, after the fixing, the fixing plate 2 will not rotate again, and correspondingly, the central opening of the annular structure is a rectangular opening matched with the connecting groove 104. In cooperation with the above-described coupling recess 104, it is not rotated again after fixing. The conventional way of setting the circular opening in the middle is easy to generate relative rotation once receiving steering force, and the relative rotation can be avoided through the action of the rectangular hole or any other non-circular opening, meanwhile, the structure is set to be rectangular, so that the suitability is considered, and the direction and the like of the fixed plate 2 are not required to be considered during installation.
Afterwards, the outer side of the central core pipe 1 is further sleeved with an outer pipe 4 as shown in fig. 6 and 7, one end of the outer pipe 4, which is close to the male connector 101, is an upper connection plate 401, the upper connection plate 401 is detachably connected with the annular structure, and in order to adapt to the outer pipe 4, the fixing plate 2 is provided with a plurality of specifications and corresponds to the outer pipes 4 with different specifications respectively.
As shown in fig. 6 and 7, the outer tube 4 has a specific structure that the outer tube 4 includes an outer tube 402 having a diameter larger than that of the sleeve 102, and a plurality of symmetrically arranged support tubes 403 are disposed in the outer tube 402. If there is a lack of adaptation to the central core tube 1 at the distal end, it is easy to deform or to displace relatively, in order to avoid the above problems, in such a way that:
as shown in fig. 2 and 7, in order to avoid deformation of the distal end of the outer tube 4, the end of the outer tube 4 remote from the male connector 101 is provided with a plurality of straightening plates 404, and the straightening plates 404 are perpendicular to the central axis of the outer tube 4. After the righting plate 404 is installed, the support can be carried out, and deformation is avoided.
And in the above structure, the righting plate 404 includes two spaced apart. And can avoid deformation, can also set up other structures between the adjacent righting plates 404 for the cooperation support center core tube 1.
In order to facilitate the handling of the rock slag, a plurality of through holes 405 are provided between the two straightening plates 404, and the through holes 405 are aligned with the pin installation direction of the female joint 103.
Finally, in a specific structure of the above-mentioned centering plate 404, a circular hole matched with the central core tube 1 is provided in the center of the centering plate 404, and a plurality of perforations are circumferentially provided on the outer side of the circular hole. The relative movement of the outer tube 4 and the central core tube 1 can be avoided.
Through the structure, the down-the-hole hammer operation in different conditions can be realized through changing different fixing plates 2 and outer tubes 4, the outer tubes 4 are connected with the fixing plates 2 in a detachable mode, and after the outer tubes are separated from the fixing plates 2, a plurality of fixing plates 2 can be separated and detached, so that the installation of other fixing plates 2 with different specifications is convenient. And under the fixed condition of outer tube 4, a plurality of fixed plates 2 are connected as an organic whole and can't separate, fixed effectual and stability is high.
Finally, when the above structure is long, the support pipe 403 penetrates the outer cylinder 402 in order to increase strength. A certain support can be made by the support pipe 403.
Claims (10)
1. The rotary drilling down-the-hole hammer drill rod with the variable outer diameter is characterized by comprising a central core tube (1), wherein the two ends of the central core tube (1) are respectively provided with a male connector (101) and a female connector (103), the male connector (101) is detachably connected with the output end of a rotary drilling rig, and the female connector (103) can be connected with a pin shaft;
a plurality of connecting grooves (104) are circumferentially arranged on the outer side of the male connector (101), a plurality of fixing plates (2) are cooperatively arranged at the connecting grooves (104), and the plurality of fixing plates (2) can be combined into an annular structure coaxial with the central core tube (1);
an outer tube (4) is sleeved on the outer side of the central core tube (1), one end, close to the male connector (101), of the outer tube (4) is an upper connecting plate (401), and the upper connecting plate (401) is detachably connected with the annular structure;
the fixed plate (2) and the outer tube (4) are provided with a plurality of specifications.
2. The rotary-drilling down-the-hole hammer drill rod with the variable outer diameter according to claim 1, wherein a plurality of fixing holes (201) are circumferentially arranged on the annular structure, a plurality of connecting holes matched with the fixing holes (201) are formed in the upper connecting plate (401), and the fixing holes (201) and the connecting holes are connected in a penetrating mode through bolts (3).
3. A variable outer diameter rotary drilling down-the-hole hammer drill rod as recited in claim 1, wherein a plurality of the connection grooves (104) are each disposed vertically.
4. A variable outer diameter rotary drilling down-the-hole hammer drill rod as recited in claim 3, wherein the central opening of the annular structure is a rectangular opening cooperatively disposed with the connecting recess (104).
5. A variable outer diameter rotary-drilling down-the-hole hammer drill rod as claimed in claim 1, wherein the outer tube (4) comprises an outer tube (402) with a diameter larger than that of the sleeve (102), and a plurality of symmetrically arranged support tubes (403) are arranged in the outer tube (402).
6. A variable outer diameter rotary-drilling down-the-hole hammer drill rod according to claim 1, characterized in that the end of the outer tube (4) remote from the male joint (101) is provided with a plurality of centralizing plates (404), and the centralizing plates (404) are perpendicular to the central axis of the outer tube (4).
7. A variable outer diameter rotary drilling down-the-hole hammer drill rod as recited in claim 6, wherein the centralizing plate (404) comprises two spaced apart.
8. The variable outer diameter rotary drilling down-the-hole hammer drill rod according to claim 7, wherein a plurality of through holes (405) are provided between the two centralizing plates (404), and the through holes (405) are aligned with respect to the pin mounting direction of the female joint (103).
9. The variable outer diameter rotary drilling down-the-hole hammer drill rod as recited in claim 6, wherein a circular hole is formed in the center of the righting plate (404) and matched with the central core tube (1), and a plurality of perforations are formed in the outer periphery of the circular hole.
10. A variable outer diameter rotary drilling down-the-hole hammer drill rod as recited in claim 5, wherein the support tube (403) extends through the outer barrel (402).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321899277.3U CN220451794U (en) | 2023-07-19 | 2023-07-19 | Rotary drilling down-the-hole hammer drill rod with variable outer diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321899277.3U CN220451794U (en) | 2023-07-19 | 2023-07-19 | Rotary drilling down-the-hole hammer drill rod with variable outer diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220451794U true CN220451794U (en) | 2024-02-06 |
Family
ID=89737739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321899277.3U Active CN220451794U (en) | 2023-07-19 | 2023-07-19 | Rotary drilling down-the-hole hammer drill rod with variable outer diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220451794U (en) |
-
2023
- 2023-07-19 CN CN202321899277.3U patent/CN220451794U/en active Active
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