CN215408443U - Power head and rotary drilling rig - Google Patents
Power head and rotary drilling rig Download PDFInfo
- Publication number
- CN215408443U CN215408443U CN202121754244.0U CN202121754244U CN215408443U CN 215408443 U CN215408443 U CN 215408443U CN 202121754244 U CN202121754244 U CN 202121754244U CN 215408443 U CN215408443 U CN 215408443U
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- Prior art keywords
- input shaft
- power head
- speed reducer
- receiving portion
- mounting
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B3/00—Rotary drilling
- E21B3/02—Surface drives for rotary drilling
Abstract
The utility model discloses a power head and a rotary drilling rig, wherein the power head comprises: the mounting box body is internally provided with a mounting cavity; the mounting box body is also provided with an opening, and the opening is communicated with the mounting cavity; an input shaft disposed in the mounting cavity; the first end of the input shaft is connected with the mounting cavity through a first bearing, the second end of the input shaft extends out of the opening, and the opening is matched with the outer diameter of the input shaft; the speed reducer is arranged on the mounting box body and is coaxial with the input shaft; the output end of the speed reducer is sleeved on the second end of the input shaft, and the output end of the speed reducer is meshed with the second end of the input shaft. So set up, can reduce the whole length in vertical direction of unit head to reduce the whole volume of unit head. Therefore, the construction method is not easily influenced by various factors of the external environment and is not easily collided by construction materials on a construction site, and the construction efficiency can be improved.
Description
Technical Field
The utility model relates to the technical field of rotary drilling rigs, in particular to a power head and a rotary drilling rig.
Background
The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, is mainly suitable for soil layer construction of sandy soil, cohesive soil, silty soil and the like, and is widely applied to foundation construction of various foundations such as cast-in-place piles, foundation reinforcement and the like.
At present, as shown in fig. 6, when the conventional speed reducer 1 and the input shaft 3 are installed, the output end of the speed reducer 1 and the input shaft 3 are separately connected through an additional bearing, so that the length of the whole power head in the vertical direction is long, and the whole volume is large. Because the power head is exposed outside, when the power head is used for construction, the whole power head with a larger volume is easily influenced by various factors of the external environment and is also easily collided by construction materials on a construction site, so that the construction efficiency is lower.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is that the power head in the prior art is large in overall size and low in construction efficiency, so that the power head and the rotary drilling rig are provided.
To achieve the above object, an embodiment of the present invention provides a power head, including: the mounting box body is internally provided with a mounting cavity; the mounting box body is also provided with an opening, and the opening is communicated with the mounting cavity; an input shaft disposed in the mounting cavity; the first end of the input shaft is connected with the mounting cavity through a first bearing, the second end of the input shaft extends out of the opening, and the opening is matched with the input shaft; the speed reducer is arranged on the mounting box body and is coaxial with the input shaft; the output end of the speed reducer is sleeved on the second end of the input shaft, and the output end of the speed reducer is meshed with the second end of the input shaft.
Optionally, a spline portion is arranged at the second end of the input shaft, a first spline structure is arranged on the spline portion, and a second spline structure matched with the first spline structure is arranged at the output end of the speed reducer.
Optionally, the speed reducer is provided with a second bearing, the second end of the input shaft is arranged in the middle of the second bearing, and the second bearing is suitable for supporting the input shaft.
Optionally, the powerhead further comprises: the oil seal structure is sleeved in the opening; an accommodating cavity is formed in the oil seal structure; an oil seal portion provided on the input shaft; the oil seal portion is adapted to be inserted into the accommodation chamber.
Optionally, the oil seal structure is provided with a ring portion in a circumferential direction of an edge close to one end of the speed reducer, and the ring portion extends outward in a radial direction of the opening.
Optionally, the ring portion is connected with the installation box body through a fixing structure.
Optionally, the fixing structure is a bolt, the ring portion is provided with a first bolt hole suitable for inserting the bolt, the mounting box body is provided with a second bolt hole suitable for inserting the bolt, and the bolt penetrates through the first bolt hole and the second bolt hole to connect the ring portion with the mounting box body.
Optionally, the mounting box body is attached to the circumferential end face of the oil seal structure, a groove is formed in the circumferential end face of the oil seal structure, a sealing ring is arranged on the oil seal structure, and the sealing ring is suitable for being embedded into the groove.
Optionally, the method further comprises: the speed reducer base is arranged on the mounting box body; the speed reducer base is suitable for mounting the speed reducer.
Optionally, the reducer base comprises a first receiving portion and a second receiving portion which are connected with each other, one end of the first receiving portion, which is far away from the second receiving portion, is connected with the reducer base, and one end of the second receiving portion, which is far away from the first receiving portion, is connected with the installation box body; the geometric centers of the first bearing part and the second bearing part are on the axis of the input shaft.
Optionally, the first receiving portion and the second receiving portion are both disposed in a cylindrical shape, an outer diameter of the first receiving portion is larger than an outer diameter of the second receiving portion, and an inner diameter of the first receiving portion is larger than an inner diameter of the second receiving portion.
Optionally, the first receiving portion is provided with a plurality of first threaded holes, the speed reducer is provided with a plurality of second threaded holes, and bolts penetrate through the first threaded holes and the second threaded holes to connect the first receiving portion with the speed reducer.
The embodiment of the utility model provides a rotary drilling rig, which comprises: a power head as in any preceding embodiment.
Compared with the prior art, the technical scheme of the utility model has the following advantages:
1. an embodiment of the present invention provides a power head, including: the mounting box body is internally provided with a mounting cavity; the mounting box body is also provided with an opening, and the opening is communicated with the mounting cavity; an input shaft disposed in the mounting cavity; the first end of the input shaft is connected with the mounting cavity through a first bearing, the second end of the input shaft extends out of the opening, and the opening is matched with the input shaft; the speed reducer is arranged on the mounting box body and is coaxial with the input shaft; the output end of the speed reducer is sleeved on the second end of the input shaft, and the output end of the speed reducer is meshed with the second end of the input shaft.
So set up, through the output cover with the speed reducer on the second end of input shaft, and the output of speed reducer meshes with the second end of input shaft mutually to need not to connect the output and the input shaft of speed reducer alone through extra bearing, compare in the installation flow of traditional speed reducer and input shaft, can reduce the whole length in vertical direction of unit head, thereby reduce the whole volume of unit head. In addition, the whole volume of the power head is reduced, so that the power head in the technical scheme has smaller volume in the construction process compared with the power head with larger volume, is not easily influenced by various factors of external environment and is also easily collided by construction materials on a construction site, the construction efficiency can be improved, the number of parts of the power head is reduced, and the use cost born by an additional bearing is reduced.
2. Because the second end of the input shaft is supported through an additional bearing in the prior art, so that the normal work of the input shaft is ensured, in the technical scheme, the second end of the input shaft is arranged in the middle of the second bearing, and the second bearing is suitable for supporting the input shaft, so that the second bearing of the speed reducer can support the input shaft. Therefore, the use of the bearing can be reduced, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for a worker of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a power head according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a reduction gear base according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an oil seal structure according to an embodiment of the present invention;
FIG. 4 is a sectional view of an oil seal structure according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an input shaft according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a power head in the prior art.
Reference numerals:
1. a speed reducer; 11. a second bearing; 2. installing a box body; 3. an input shaft; 31. a spline section; 32. an oil seal portion; 33. a gear portion; 4. a speed reducer base; 41. a first receiving part; 42. a second receiving part; 5. an oil seal structure; 51. a ring portion; 52. a receiving cavity.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a worker skilled in the art without creative efforts based on the embodiments of the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases by a worker of ordinary skill in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, is mainly suitable for soil layer construction of sandy soil, cohesive soil, silty soil and the like, and is widely applied to foundation construction of various foundations such as cast-in-place piles, foundation reinforcement and the like. At present, when a traditional speed reducer and an input shaft are installed, the output end of the speed reducer and the input shaft are connected through an additional bearing independently, so that the length of the whole power head in the vertical direction is long, and the whole size is large. Because the power head is exposed outside, when the power head is used for construction, the whole power head with a larger volume is easily influenced by various factors of the external environment and is also easily collided by construction materials on a construction site, so that the construction efficiency is lower.
Therefore, the technical problem to be solved by the utility model is that the power head in the prior art is large in overall size and low in construction efficiency, so that the power head and the rotary drilling rig are provided.
Example 1
As shown in fig. 1 to 5, an embodiment of the present invention provides a power head including: the mounting case 2, the input shaft 3, and the reduction gear 1.
Specifically, in the embodiment of the present invention, an installation cavity is disposed inside the installation box 2, and an opening is further disposed at the upper end of the left side of the installation box 2, and the opening is communicated with the installation cavity. The input shaft 3 is arranged at the left side in the mounting cavity, a first end of the input shaft 3 is connected with the mounting cavity through a first bearing, a second end of the input shaft 3 extends outwards from the opening, and the opening is matched with the input shaft 3. The speed reducer 1 is arranged above the mounting box body 2, and the axis where the output end of the speed reducer 1 is located is coaxial with the axis where the input shaft 3 is located. In the embodiment of the present invention, the output end of the speed reducer 1 is sleeved on the second end of the input shaft 3, and the output end of the speed reducer 1 is engaged with the second end of the input shaft 3.
So set up, through the output cover with speed reducer 1 on the second end of input shaft 3, and speed reducer 1's output and the second end of input shaft 3 mesh mutually to need not to connect speed reducer 1's output and input shaft 3 alone through extra bearing, compare in traditional speed reducer 1 as shown in fig. 6 and input shaft 3's installation flow, can reduce the whole length in vertical direction of unit head, thereby reduce the whole volume of unit head. In addition, the whole volume of the power head is reduced, so that the power head in the technical scheme has smaller volume in the construction process compared with the power head with larger volume, is not easily influenced by various factors of external environment and is also easily collided by construction materials on a construction site, the construction efficiency can be improved, the number of parts of the power head is reduced, and the use cost born by an additional bearing is reduced.
Optionally, in the embodiment of the present invention, a spline portion 31 is disposed at the second end of the input shaft 3, a first spline structure is disposed on the spline portion 31, and a second spline structure matched with the first spline structure is disposed at the output end of the speed reducer 1. In the embodiment of the present invention, a second bearing 11 is further disposed inside the speed reducer 1, the second end of the input shaft 3 is disposed in the middle of the second bearing 11, and the second bearing is adapted to support the input shaft.
Because the second end of the input shaft 3 is supported by an additional bearing in the prior art, so as to ensure the normal operation of the input shaft 3, in the technical scheme, the second end of the input shaft 3 is arranged in the middle of the second bearing 11, and the second bearing is suitable for supporting the input shaft, so that the second bearing 11 of the speed reducer 1 can support the input shaft 3. Therefore, the use of the bearing can be reduced, and the production cost is reduced.
Optionally, in the present embodiment, the power head further includes an oil seal structure 5 and an oil seal portion 32. Specifically, the oil seal structure 5 is sleeved in the opening, so that the oil seal structure 5 is embedded in the installation box 2, and since the inside of the oil seal structure 5 is provided with the accommodating cavity 52, the whole oil seal structure 5 is in a concave structure relative to the installation box 2. The input shaft 3 is provided with an oil seal portion 32, and the oil seal portion 32 is adapted to be inserted into the housing chamber 52. Further, the oil seal structure 5 is provided with a ring part 51 at the edge circumference near one end of the speed reducer 1, and the ring part 51 extends outwards along the radial direction of the opening. The ring part 51 is connected with the installation box body 2 through a fixed structure.
With such an arrangement, compared with the prior art shown in fig. 6 in which the oil seal structure 5 is directly disposed at the top of the installation box 2, so that the bottom of the oil seal structure 5 is flush with the top of the installation box 2, the embodiment of the present invention can embed the oil seal structure 5 into the installation box 2, thereby further reducing the overall installation space of the power head. Further, the outer diameter of the ring portion 51 can be reduced compared to the conventional art, and the width of the mounting case 2 in the horizontal direction can be reduced.
In the embodiment of the present invention, the fixing structure may be a bolt, the ring portion 51 is provided with a plurality of first bolt holes suitable for inserting the bolt, the mounting box 2 is provided with a plurality of second bolt holes suitable for inserting the bolt, and the first bolt holes and the second bolt holes are arranged in a one-to-one correspondence manner. The bolts pass through the first bolt holes and the second bolt holes to connect the ring portion 51 with the mounting case 2. Further, the installation box body 2 is attached to the circumferential end face of the oil seal structure 5, a groove is formed in the circumferential end face of the oil seal structure 5, and a sealing ring is arranged on the oil seal structure 5 and is suitable for being embedded into the groove. The sealing ring is an O-shaped ring.
Of course, a person skilled in the art may change the type of the sealing ring according to actual situations, and this embodiment is merely an example, and is not limited thereto, and the same technical effects can be achieved.
In the embodiment of the utility model, a rotary support is further arranged inside the mounting box body 2, the input shaft 3 is provided with a gear part 33 meshed with the rotary support, and the input shaft 3 and the rotary support can be used for transmitting power for the power head.
Optionally, in the embodiment of the present invention, the power head further includes a speed reducer base 4, the speed reducer base 4 is disposed on the mounting box 2, and the speed reducer base 4 is adapted to mount the speed reducer 1. The reduction base 4 can be directly welded with the installation box 2, and of course, a person skilled in the art can change the connection mode of the reduction base and the installation box 2 according to actual situations.
Specifically, in the embodiment of the present invention, the speed reducer base 4 may include a first receiving portion 41 and a second receiving portion 42 that are connected to each other, an end of the first receiving portion 41 away from the second receiving portion 42 is connected to the speed reducer base 4, an end of the second receiving portion 42 away from the first receiving portion 41 is connected to the mounting box 2, and geometric centers of the first receiving portion 41 and the second receiving portion 42 are on the axis of the input shaft 3.
Further, the first receiving portion 41 and the second receiving portion 42 are both provided in a cylindrical shape, the outer diameter of the first receiving portion 41 is larger than the outer diameter of the second receiving portion 42, and the inner diameter of the first receiving portion 41 is larger than the inner diameter of the second receiving portion 42, so that the reduction gear base provided in an inverted circular truncated cone shape in the prior art shown in fig. 6 is eliminated.
In the embodiment of the present invention, the first receiving portion 41 is further provided with a plurality of first threaded holes, the speed reducer 1 is provided with a plurality of second threaded holes, and bolts are inserted through the first threaded holes and the second threaded holes to connect the first receiving portion 41 and the speed reducer 1.
Of course, a person skilled in the art can change the connection mode between the first receiving portion 41 and the speed reducer 1 according to actual conditions, and the present embodiment is only an example and is not limited thereto, and the same technical effects can be achieved.
Example 2
The embodiment of the utility model provides a rotary drilling rig, which comprises: a power head as in any preceding embodiment.
So set up, through the output cover with speed reducer 1 on the second end of input shaft 3, and speed reducer 1's output and the second end of input shaft 3 mesh mutually to need not to connect speed reducer 1's output and input shaft 3 alone through extra bearing, compare in traditional speed reducer 1 and input shaft 3's installation flow, can reduce the whole length in vertical direction of unit head, thereby reduce the whole volume of unit head. In addition, the whole volume of the power head is reduced, so that the power head in the technical scheme has smaller volume in the construction process compared with the power head with larger volume, is not easily influenced by various factors of external environment and is also easily collided by construction materials on a construction site, the construction efficiency can be improved, the number of parts of the power head is reduced, and the use cost born by an additional bearing is reduced.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Variations and modifications in other variations may occur to those skilled in the art based upon the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (13)
1. A powerhead, comprising:
the mounting box body (2) is internally provided with a mounting cavity; the mounting box body (2) is also provided with an opening, and the opening is communicated with the mounting cavity;
an input shaft (3) disposed in the mounting cavity; the first end of the input shaft (3) is connected with the mounting cavity through a first bearing, the second end of the input shaft (3) extends outwards from the opening, and the opening is matched with the input shaft (3);
the speed reducer (1) is arranged on the mounting box body (2) and is coaxial with the input shaft (3); the output end of the speed reducer (1) is sleeved on the second end of the input shaft (3), and the output end of the speed reducer (1) is meshed with the second end of the input shaft (3).
2. The power head according to claim 1, characterized in that the second end of the input shaft (3) is provided with a splined portion (31), a first spline structure is provided on the splined portion (31), and a second spline structure matched with the first spline structure is provided at the output end of the reducer (1).
3. The power head according to claim 2, characterized in that the speed reducer (1) is provided with a second bearing (11), the second end of the input shaft (3) being provided in the middle of the second bearing (11), the second bearing (11) being adapted to support the input shaft (3).
4. The powerhead of any of claims 1 to 3, and further comprising:
the oil seal structure (5) is sleeved in the opening; an accommodating cavity (52) is arranged in the oil seal structure (5);
an oil seal portion (32) provided on the input shaft (3); the oil seal portion (32) is adapted to be inserted into the housing chamber (52).
5. The power head according to claim 4, characterized in that the oil seal structure (5) is provided with a ring portion (51) circumferentially at an edge near one end of the reducer (1), the ring portion (51) extending radially outward of the opening.
6. The power head according to claim 5, characterized in that the ring (51) is connected with the mounting housing (2) by a fixed structure.
7. The power head of claim 6, wherein the securing structure is a bolt, the ring portion (51) defines a first bolt hole adapted for insertion of the bolt, the mounting case (2) defines a second bolt hole adapted for insertion of the bolt, and the bolt passes through the first and second bolt holes to connect the ring portion (51) with the mounting case (2).
8. The power head according to any of the claims 5 to 7, characterized in that the mounting housing (2) is provided with a groove in a circumferential end face abutting the oil seal (5), the oil seal (5) being provided with a sealing ring adapted to be embedded in the groove.
9. The powerhead of any of claims 5 to 7, and further comprising:
the speed reducer base (4) is arranged on the mounting box body (2); the speed reducer base (4) is suitable for mounting the speed reducer (1).
10. The power head according to claim 9, characterized in that the reducer housing (4) comprises a first receiving portion (41) and a second receiving portion (42) connected to each other, wherein the end of the first receiving portion (41) remote from the second receiving portion (42) is connected to the reducer housing (4), and the end of the second receiving portion (42) remote from the first receiving portion (41) is connected to the mounting box (2); the geometric centers of the first receiving part (41) and the second receiving part (42) are on the axis of the input shaft (3).
11. The power head of claim 10, wherein the first receiving portion (41) and the second receiving portion (42) are both arranged in a cylindrical shape, an outer diameter of the first receiving portion (41) is larger than an outer diameter of the second receiving portion (42), and an inner diameter of the first receiving portion (41) is larger than an inner diameter of the second receiving portion (42).
12. The power head according to claim 11, characterized in that the first socket (41) is provided with a plurality of first threaded holes, the reducer (1) is provided with a plurality of second threaded holes, and bolts pass through the first and second threaded holes to connect the first socket (41) with the reducer (1).
13. A rotary drilling rig, characterized by comprising: the powerhead of any of claims 1 to 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754244.0U CN215408443U (en) | 2021-07-29 | 2021-07-29 | Power head and rotary drilling rig |
| PCT/CN2022/079505 WO2023005210A1 (en) | 2021-07-29 | 2022-03-07 | Power head and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121754244.0U CN215408443U (en) | 2021-07-29 | 2021-07-29 | Power head and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215408443U true CN215408443U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121754244.0U Active CN215408443U (en) | 2021-07-29 | 2021-07-29 | Power head and rotary drilling rig |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215408443U (en) |
| WO (1) | WO2023005210A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005210A1 (en) * | 2021-07-29 | 2023-02-02 | 北京三一智造科技有限公司 | Power head and rotary drilling rig |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4423645A (en) * | 1981-06-10 | 1984-01-03 | Varco International, Inc. | Pipe spinner |
| CN201193477Y (en) * | 2007-11-08 | 2009-02-11 | 王来鹏 | Power head of electric spiral digging drill |
| WO2013106207A1 (en) * | 2012-01-11 | 2013-07-18 | Longyear Tm, Inc. | Progressive dual-shift drill head and systems and methods thereof |
| CN203925275U (en) * | 2013-12-20 | 2014-11-05 | 黄永治 | Top drive |
| CN207795999U (en) * | 2017-12-11 | 2018-08-31 | 泰安泰山福神齿轮箱有限责任公司 | Power head deceleration device for drilling machine |
| CN110552614A (en) * | 2019-10-12 | 2019-12-10 | 赛达（上海）传动工程有限公司 | Power head of rotary drilling rig and corresponding rotary drilling rig |
| CN112227938A (en) * | 2020-11-03 | 2021-01-15 | 北京三一智造科技有限公司 | Transmission case, power head and rotary drilling rig |
| CN215408443U (en) * | 2021-07-29 | 2022-01-04 | 北京三一智造科技有限公司 | Power head and rotary drilling rig |
-
2021
- 2021-07-29 CN CN202121754244.0U patent/CN215408443U/en active Active
-
2022
- 2022-03-07 WO PCT/CN2022/079505 patent/WO2023005210A1/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023005210A1 (en) * | 2021-07-29 | 2023-02-02 | 北京三一智造科技有限公司 | Power head and rotary drilling rig |
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| WO2023005210A1 (en) | 2023-02-02 |
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