CN220133914U - Quick connecting device for power head and drill rod - Google Patents
Quick connecting device for power head and drill rod Download PDFInfo
- Publication number
- CN220133914U CN220133914U CN202321651881.4U CN202321651881U CN220133914U CN 220133914 U CN220133914 U CN 220133914U CN 202321651881 U CN202321651881 U CN 202321651881U CN 220133914 U CN220133914 U CN 220133914U
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- chuck body
- sleeve
- piston
- sealing
- drill rod
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- 238000007789 sealing Methods 0.000 claims abstract description 62
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000005553 drilling Methods 0.000 abstract description 11
- 239000007789 gas Substances 0.000 description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model provides a quick connecting device for a power head and a drill rod, which belongs to the technical field of drilling machines and comprises a disc body, a plurality of clamping steel balls, a sealing plug, a sliding sleeve, a piston and the like. According to the utility model, through the cooperation of the chuck body, the plurality of clamping steel balls, the sealing plug, the sliding sleeve and the piston, clamping and loosening of the drill rod can be controlled only by using an external high-pressure air source to inflate or not, rapid connection and disassembly of the power head and the drill rod can be conveniently realized, torque and load application are not influenced, and the work efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of drilling machines, and particularly relates to a quick connecting device for a power head and a drill rod.
Background
The drilling machine is equipment which drives a drilling tool to break rock at the bottom of a hole to drill underground, and is used for putting down or putting out the drilling tool in the hole, and is also called a drilling machine, in engineering construction, exploration or mineral resource (including solid ore, liquid ore, gas ore and the like) development. The drilling machine drives the drilling rod through the power head, and the drilling rod drives the drilling tool to work. At present, common connection types of the power head and the drill rod are in threaded connection, so that the screwing time occupies a large amount of time in the process of tripping and tripping, and the working efficiency is reduced.
Disclosure of Invention
The utility model aims to provide a quick connecting device for a power head and a drill rod, which solves the technical problems of long occupied time and reduced working efficiency in the prior art of connecting the power head and the drill rod by a turnbuckle.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the quick connecting device for the power head and the drill rod comprises a chuck body, a plurality of clamping steel balls, a sealing plug, a sliding sleeve and a piston, wherein the chuck body is of a tubular structure, one end of the chuck body is used for being connected with the power head, and the other end of the chuck body is provided with a plurality of steel ball holes which are annularly arranged and used for being inserted into the drill rod; the clamping steel balls are arranged in the steel ball holes, and the diameter of the clamping steel balls is larger than the wall thickness of the part of the chuck body, provided with the steel ball holes, so that the drill rod is clamped; the sealing plug is arranged in the chuck body, and one end of the sealing plug is used for being in butt joint with the drill rod; the sliding sleeve is sleeved on the chuck body and is in sliding sealing connection with the chuck body, a pressure cavity, a piston cavity, a containing cavity, a first gas channel and a second gas channel are arranged in the sliding sleeve, the first gas channel is communicated with the piston cavity and the pressure cavity, and the second gas channel is communicated with the piston cavity and the outside; the piston is fixed on the chuck body and is arranged in the piston cavity in a sliding sealing manner, the piston divides the piston cavity into two air cavities, and the two air cavities are respectively communicated with the first air channel and the second air channel; the piston can move under the action of the air pressure difference at two sides and drives the chuck body and the sliding sleeve to slide relatively.
In combination with the above technical solution, in one possible implementation, the end of the sealing plug facing the drill rod is of a conical structure.
In combination with the above technical solution, in one possible implementation manner, the chuck body is provided with an embedded groove, the sealing plug is arranged in the embedded groove, and the sealing plug is in interference fit with the chuck body.
In combination with the above technical solution, in one possible implementation manner, the chuck body is provided with a clamping protrusion outside, and the piston is connected with the clamping protrusion.
In combination with the above technical solution, in one possible implementation manner, the steel ball hole is a tapered hole, and the diameter of the small end is smaller than the diameter of the clamping steel ball.
In combination with the above technical solution, in one possible implementation manner, the end portion of the sliding sleeve is further provided with a rotating ring, the rotating ring is rotationally and hermetically connected with the sliding sleeve, an air source interface is arranged on the rotating ring, a third air channel is arranged between the rotating ring and the sliding sleeve, and the third air channel is respectively communicated with the air source interface and the second air channel.
In combination with the above technical solution, in one possible implementation manner, a ball groove, a ball and two rotary sealing rings are arranged between the rotary ring and the sliding sleeve, and the ball is arranged in the ball groove; the two rotary sealing rings, the rotary ring and the sliding sleeve form a third gas channel.
In combination with the above technical solution, in one possible implementation manner, the sliding sleeve includes an accumulator, a cylinder liner and a sleeve, where the accumulator, the cylinder liner and the sleeve are all sleeved on the chuck body and are in sliding sealing connection with the chuck body, the first gas channel is arranged on the cylinder liner, the accumulator is connected with one end of the cylinder liner and forms a pressure cavity with the outside of the cylinder liner and the chuck body, the sleeve is connected with the other end of the cylinder liner and forms a piston cavity with the outside of the cylinder liner and the chuck body, and the accommodating cavity and the second gas channel are arranged on the sleeve.
In combination with the above technical solution, in one possible implementation manner, the sleeve is provided with a sealing ring, and the sealing ring and the sleeve form a containing cavity.
In combination with the above technical solution, in one possible implementation manner, the chuck body is in sealing connection with the sealing plug, the accumulator, the cylinder sleeve and the sleeve through the sealing ring, and the cylinder sleeve is also in sealing connection with the accumulator and the sleeve through the sealing ring.
The quick connecting device for the power head and the drill rod has the beneficial effects that: compared with the prior art, the utility model can control the clamping and releasing of the drill rod only by utilizing the external high-pressure air source to charge or not through the matching of the chuck body, the plurality of clamping steel balls, the sealing plug, the sliding sleeve and the piston, can conveniently realize the quick connection and the disassembly of the power head and the drill rod, does not influence the torque and the load application, and is beneficial to improving the working efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a longitudinal sectional structure of a device for quickly connecting a power head and a drill rod in a state of not connecting the drill rod according to an embodiment of the present utility model;
fig. 2 is a schematic longitudinal sectional structure diagram of a quick connection device for a power head and a drill rod in a state of connecting the drill rod according to an embodiment of the present utility model;
fig. 3 is a schematic cross-sectional view of the view A-A in fig. 2.
Wherein, each reference sign is as follows in the figure:
10. a chuck body; 11. a steel ball hole; 12. the clamping bulge;
20. clamping a steel ball;
30. a sealing plug;
41. a pressure chamber; 42. a piston chamber; 43. a receiving chamber; 44. a first gas passage;
45. a second gas passage; 46. an accumulator; 47. cylinder sleeve; 48. a sleeve; 49. a seal ring;
50. a piston;
60. a rotating ring; 61. an air source interface; 62. a third gas passage;
63. a ball; 64. rotating the sealing ring;
70. and (3) drilling rod.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the described embodiments are only some, but not all, embodiments of the present utility model, and that the specific embodiments described herein are intended to be illustrative of the present utility model and not limiting. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be further noted that the drawings and embodiments of the present utility model mainly describe the concept of the present utility model, and on the basis of the concept, some specific forms and arrangements of connection relations, position relations, power units, power supply systems, hydraulic systems, control systems, etc. may not be completely described, but those skilled in the art may implement the specific forms and arrangements described above in a well-known manner on the premise of understanding the concept of the present utility model.
When an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
The terms "inner" and "outer" refer to the inner and outer relative to the outline of each component itself, and the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. refer to the orientation or positional relationship as shown based on the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" means two or more, and the meaning of "a number" means one or more, unless specifically defined otherwise.
The quick connecting device for the power head and the drill rod provided by the utility model is now described.
As shown in fig. 1 to 3, a first embodiment of the present utility model provides a quick connection device for a power head and a drill rod, which includes a chuck body 10, a plurality of clamping steel balls 20, a sealing plug 30, a sliding sleeve and a piston 50, wherein the chuck body 10 has a tubular structure, one end is used for connecting with the power head, and the other end is provided with a plurality of steel ball holes 11 which are annularly arranged and used for inserting the drill rod 70; a plurality of clamping steel balls 20 are arranged in the steel ball holes 11, and the diameter of the clamping steel balls is larger than the wall thickness of the part of the chuck body 10 provided with the steel ball holes 11, so that the drill rod 70 is clamped; the sealing plug 30 is arranged in the chuck body 10, and one end is used for being in butt joint with the drill rod 70; the sliding sleeve is sleeved on the chuck body 10 and is in sliding sealing connection with the chuck body 10, a pressure cavity 41, a piston cavity 42, a containing cavity 43, a first gas channel 44 and a second gas channel 45 are arranged in the sliding sleeve, the first gas channel 44 is communicated with the piston cavity 42 and the pressure cavity 41, and the second gas channel 45 is communicated with the piston cavity 42 and the outside; the piston 50 is fixed on the chuck body 10 and is arranged in the piston cavity 42 in a sliding sealing manner, the piston 50 divides the piston cavity 42 into two air cavities, and the two air cavities are respectively communicated with the first air channel 44 and the second air channel 45; the piston 50 can move under the action of the air pressure difference at two sides and drive the chuck body 10 and the sliding sleeve to slide relatively.
Before use, a certain amount of gas (nitrogen can be filled for reducing corrosion) is filled into the pressure cavity 41 in advance, so that a certain pressure is formed in the pressure cavity 41, the second gas channel 45 is communicated with the outside in a natural state, the gas pressure in the pressure cavity 41 is larger than the outside gas pressure, the piston 50 is propped against one side in the piston cavity 42, and the accommodating cavity 43 is staggered with the steel ball hole 11, so that a part of the clamping steel ball 20 enters the chuck body 10 to clamp the drill rod 70; when the drill rod 70 needs to be disassembled and assembled, the second gas channel 45 is connected with an external high-pressure gas source, so that the gas pressure of the second gas channel 45 is larger than the gas pressure in the pressure cavity 41, the piston 50 slides to the other side of the piston cavity 42 in the piston cavity 42 due to the gas pressure difference, the chuck body 10 and the sliding sleeve are driven to slide relatively, the accommodating cavity 43 is aligned with the steel ball hole 11, and the part of the clamping steel ball 20 enters the accommodating cavity 43 to release the drill rod 70.
When the drill rod 70 is installed, the second gas channel 45 is connected with an external high-pressure gas source, so that the clamping steel ball 20 is loosened, then the drill rod 70 is inserted into the chuck body 10 until the top is tightly sealed up with the plug 30, then the second gas channel 45 is disconnected with the external high-pressure gas source, the gas pressure of the second gas channel 45 is rapidly reduced, and the piston 50 is caused to slide, so that the clamping steel ball 20 clamps the drill rod 70; when the drill rod 70 needs to be removed, the second gas channel 45 is directly connected with an external high-pressure gas source, so that the clamping steel ball 20 is loosened, and then the drill rod 70 is pulled out of the chuck body 10. In order to make the clamping of the drill rod 70 more firm after installation, the drill rod 70 may be provided with a protruding head and a ball groove which are matched with the clamping steel ball 20. To better protect the entire device, the high pressure gas source may be nitrogen and other inert gases.
Compared with the prior art, the quick connecting device for the power head and the drill rod provided by the embodiment has the advantages that the clamping and loosening of the drill rod 70 can be controlled only by utilizing the matching of the chuck body 10, the clamping steel balls 20, the sealing plug 30, the sliding sleeve and the piston 50 and the outside high-pressure air source to inflate or not, the quick connecting and detaching of the power head and the drill rod can be conveniently realized, the torque and the load application are not influenced, and the work efficiency is improved.
As shown in fig. 1 to 3, a specific embodiment of the present utility model provided on the basis of the first embodiment is as follows:
the end of the sealing plug 30 facing the drill rod 70 is tapered to facilitate insertion into the drill rod 70 for better sealing and positioning.
The chuck body 10 is internally provided with an embedded groove, the sealing plug 30 is arranged in the embedded groove, and the sealing plug 30 is in interference fit with the chuck body 10, so that the sealing plug 30 is positioned and connected in a sealing manner, and leakage of slurry and high-pressure gas from between the sealing plug 30 and the chuck body 10 is avoided.
The chuck body 10 is provided with the clamping protrusion 12 outside, and the piston 50 is connected with the clamping protrusion 12 to limit the piston 50, so that the piston 50 and the chuck body 10 are prevented from moving relatively.
The steel ball hole 11 is a conical hole, and the diameter of the small end is smaller than that of the clamping steel ball 20, so that the clamping steel ball 20 is prevented from falling out of the chuck body 10, and meanwhile, the movement of the clamping steel ball 20 is not influenced. In particular, the tapered hole may be a tapered spherical hole.
The end part of the sliding sleeve is also provided with a rotating ring 60, the rotating ring 60 is in rotating sealing connection with the sliding sleeve, an air source interface 61 is arranged on the rotating ring 60, a third air channel 62 is arranged between the rotating ring 60 and the sliding sleeve, and the third air channel 62 is respectively communicated with the air source interface 61 and the second air channel 45 so as to be better adapted to high-pressure air source connectors in various directions through rotation of the rotating ring 60.
A ball groove, a ball 63 and two rotary sealing rings 64 are arranged between the rotary ring 60 and the sliding sleeve, and the ball 63 is arranged in the ball groove, so that the rotary ring 60 and the sliding sleeve form a bearing structure so as to conveniently and smoothly rotate, and enough space is reserved to form a third gas channel 62; the two rotary seal rings 64, the rotary ring 60 and the sliding sleeve form a third gas channel 62.
The sliding sleeve comprises an energy accumulator 46, a cylinder sleeve 47 and a sleeve 48, wherein the energy accumulator 46, the cylinder sleeve 47 and the sleeve 48 are all sleeved on the chuck body 10 and are in sliding sealing connection with the chuck body 10, a first gas channel 44 is arranged on the cylinder sleeve 47, the energy accumulator 46 is connected with one end of the cylinder sleeve 47 and forms a pressure cavity 41 with the cylinder sleeve 47 and the outside of the chuck body 10, the sleeve 48 is connected with the other end of the cylinder sleeve 47 and forms a piston cavity 42 with the cylinder sleeve 47 and the outside of the chuck body 10, and a containing cavity 43 and a second gas channel 45 are arranged on the sleeve 48. By providing the sliding sleeve as three parts of the accumulator 46, the cylinder sleeve 47 and the sleeve 48, the disassembly and the assembly can be facilitated.
The sleeve 48 is provided with a sealing ring 49, and the sealing ring 49 and the sleeve 48 form the accommodating cavity 43, so that the integral assembly is facilitated.
The chuck body 10 is in sealing connection with the sealing plug 30, the energy accumulator 46, the cylinder sleeve 47 and the sleeve 48 through sealing rings, and the cylinder sleeve 47 is also in sealing connection with the energy accumulator 46 and the sleeve 48 through sealing rings.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A quick connect device for a power head and a drill pipe, comprising:
the chuck body (10) is of a tubular structure, one end of the chuck body is used for being connected with the power head, and the other end of the chuck body is provided with a plurality of steel ball holes (11) in a ring shape and used for inserting a drill rod (70);
the clamping steel balls (20) are arranged in the steel ball holes (11) and have diameters larger than the wall thickness of the positions, provided with the steel ball holes (11), of the chuck body (10) for clamping the drill rod (70);
a sealing plug (30) arranged in the chuck body (10) and one end of which is used for being in butt joint with a drill rod (70);
the sliding sleeve is sleeved on the chuck body (10) and is in sliding sealing connection with the chuck body (10), a pressure cavity (41), a piston cavity (42), a containing cavity (43), a first gas channel (44) and a second gas channel (45) are arranged in the sliding sleeve, the first gas channel (44) is communicated with the piston cavity (42) and the pressure cavity (41), and the second gas channel (45) is communicated with the piston cavity (42) and the outside;
the piston (50) is fixed on the chuck body (10) and is arranged in the piston cavity (42) in a sliding sealing manner, the piston (50) divides the piston cavity (42) into two air cavities, and the two air cavities are respectively communicated with the first air channel (44) and the second air channel (45); the piston (50) can move under the action of air pressure difference at two sides and drives the chuck body (10) and the sliding sleeve to slide relatively.
2. The quick connect unit of claim 1, wherein: one end of the sealing plug (30) facing the drill rod (70) is of a conical structure.
3. The quick connect unit of claim 1, wherein: the chuck is characterized in that an embedded groove is formed in the chuck body (10), the sealing plug (30) is arranged in the embedded groove, and the sealing plug (30) is in interference fit with the chuck body (10).
4. The quick connect unit of claim 1, wherein: the chuck body (10) is provided with a clamping protrusion (12) at the outer part, and the piston (50) is connected with the clamping protrusion (12).
5. The quick connect unit of claim 1, wherein: the steel ball hole (11) is a conical hole, and the diameter of the small end is smaller than that of the clamping steel ball (20).
6. The quick connect unit of claim 1, wherein: the end part of the sliding sleeve is further provided with a rotating ring (60), the rotating ring (60) is in rotary sealing connection with the sliding sleeve, the rotating ring (60) is provided with an air source interface (61), a third air channel (62) is arranged between the rotating ring (60) and the sliding sleeve, and the third air channel (62) is respectively communicated with the air source interface (61) and the second air channel (45).
7. The quick connect coupling for a power head and drill pipe of claim 6, wherein: a ball groove, a ball (63) and two rotary sealing rings (64) are arranged between the rotary ring (60) and the sliding sleeve, and the ball (63) is arranged in the ball groove; the two rotary sealing rings (64), the rotary ring (60) and the sliding sleeve form the third gas channel (62).
8. The quick connect unit of claim 1, wherein: the sliding sleeve comprises an energy accumulator (46), a cylinder sleeve (47) and a sleeve (48), wherein the energy accumulator (46), the cylinder sleeve (47) and the sleeve (48) are all sleeved on the chuck body (10) and are in sliding sealing connection with the chuck body (10), a first gas channel (44) is arranged on the cylinder sleeve (47), the energy accumulator (46) is connected with one end of the cylinder sleeve (47) and is connected with the cylinder sleeve (47) and the outside of the chuck body (10) to form a pressure cavity (41), the sleeve (48) is connected with the other end of the cylinder sleeve (47) and is connected with the outside of the cylinder sleeve (47) and the chuck body (10) to form a piston cavity (42), and the accommodating cavity (43) and the second gas channel (45) are arranged on the sleeve (48).
9. The quick connect coupling for a power head and drill pipe of claim 8, wherein: a sealing ring (49) is arranged on the sleeve (48), and the sealing ring (49) and the sleeve (48) form the accommodating cavity (43).
10. The quick connect coupling for a power head and drill pipe of claim 8, wherein: the chuck body (10) is in sealing connection with the sealing plug (30), the energy accumulator (46), the cylinder sleeve (47) and the sleeve (48) through sealing rings, and the cylinder sleeve (47) is also in sealing connection with the energy accumulator (46) and the sleeve (48) through sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651881.4U CN220133914U (en) | 2023-06-27 | 2023-06-27 | Quick connecting device for power head and drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321651881.4U CN220133914U (en) | 2023-06-27 | 2023-06-27 | Quick connecting device for power head and drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220133914U true CN220133914U (en) | 2023-12-05 |
Family
ID=88950247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321651881.4U Active CN220133914U (en) | 2023-06-27 | 2023-06-27 | Quick connecting device for power head and drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220133914U (en) |
-
2023
- 2023-06-27 CN CN202321651881.4U patent/CN220133914U/en active Active
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