CN108678658B - Rotary table connecting structure of rotary drilling rig and rotary drilling rig - Google Patents
Rotary table connecting structure of rotary drilling rig and rotary drilling rig Download PDFInfo
- Publication number
- CN108678658B CN108678658B CN201810895111.1A CN201810895111A CN108678658B CN 108678658 B CN108678658 B CN 108678658B CN 201810895111 A CN201810895111 A CN 201810895111A CN 108678658 B CN108678658 B CN 108678658B
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- China
- Prior art keywords
- base plate
- drilling rig
- rotary drilling
- drill mast
- rotary
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- 238000005553 drilling Methods 0.000 title claims abstract description 37
- 239000003921 oil Substances 0.000 claims description 22
- 238000005461 lubrication Methods 0.000 claims description 16
- 239000010687 lubricating oil Substances 0.000 claims description 13
- 238000010276 construction Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B3/04—Rotary tables
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The disclosure relates to a rotary table connecting structure of a rotary drilling rig and the rotary drilling rig. Rotary drilling rig carousel connection structure (100) includes: a turntable (110) having a shaft hole (111) through which the rotation shaft passes; and the integral base plate (120) is fixedly arranged on the surface of one side, close to the drill mast (200), of the rotary table (110) and is provided with a through hole (121) matched with the shaft hole (111), wherein the integral base plate (120) is provided with an integral contact surface which is in surface contact with the drill mast (200). The present disclosure enables stronger carrying capacity.
Description
Technical Field
The disclosure relates to a rotary table connecting structure of a rotary drilling rig and the rotary drilling rig.
Background
The rotary drilling rig is a construction machine suitable for pore-forming operation in building foundation engineering. The method 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 filling piles, foundation reinforcement and the like. The mast of the rotary drilling rig (called drill mast for short) is an important component part in the rotary drilling rig, and is usually connected with an amplitude variation mechanism of the rotary drilling rig through a turntable connection structure.
In the existing turntable connecting structure, four strip-shaped base plates are mainly adopted for local contact between the turntable and the drilling mast. The contact area of the structure is small, the bearing capacity is poor, the flatness is poor, and the abrasion is easy to cause. Under heavy load working conditions, the abrasion loss of the turntable connecting structure is increased, the gap on the bottom surface of the drilling mast is increased during construction, and the integral shaking amount is increased, so that the construction precision is reduced.
Disclosure of Invention
In view of this, the embodiment of the disclosure provides a rotary table connection structure of a rotary drilling rig and the rotary drilling rig, which can realize stronger bearing capacity.
In one aspect of the present disclosure, there is provided a rotary drilling rig rotary table connection structure including:
The rotary table is provided with a shaft hole for the rotary shaft to pass through; and
An integral bottom plate which is fixedly arranged on the surface of one side of the turntable close to the drill mast and is provided with a through hole matched with the shaft hole,
Wherein the integral base plate has an integral contact surface in surface contact with the drill mast.
Further, the width of the integral base plate is not smaller than the cross-sectional width of the drill mast.
Further, the unitary floor includes a convex circular arc structure at least one end in the width direction.
Further, the height of the integral floor is equal to or less than the width of the integral floor.
Further, the integral bottom plate is formed by one-step machining of the whole surface.
Further, an upper bottom plate is further arranged on the surface, close to one side of the drill mast, of the rotary table, the upper bottom plate is located above the integral bottom plate, and a wear-resistant base plate is further arranged on the surface, close to one side of the drill mast, of the upper bottom plate.
Further, a first lubrication groove is formed in the surface of the integral base plate, which is close to one side of the drill mast.
Further, the first oil groove includes a plurality of concentric annular oil grooves and radial oil grooves radially radiating from a center of the through hole.
Further, a second lubrication groove is formed in the surface of the wear-resistant backing plate, which is close to one side of the drill mast.
Further, a plurality of lubricating oil flow passages are further arranged between the upper base plate and the integral base plate and used for guiding the lubricating oil flowing out of the second lubricating oil groove to the first lubricating oil groove.
Further, an oil filling port for adding lubricating oil is arranged on the wear-resistant backing plate.
Further, the surface area of the surface of the integral base plate, which is close to one side of the drill mast, is 0.62-1.78 m 2.
In another aspect of the present disclosure, a rotary drilling rig is provided, including a drill mast and the rotary drilling rig carousel connection described above.
Therefore, according to the embodiment of the disclosure, the integral bottom plate is arranged on the surface of the turntable, which is close to one side of the drill mast, and is in surface contact with the drill mast, so that a larger contact area can be realized, the contact specific pressure is reduced, a stronger bearing capacity is obtained, and the stress condition of the connecting structure is effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic structural view of some embodiments of rotary drill rig rotary table connection structures according to the present disclosure;
FIG. 2 is a schematic front view of some embodiments of rotary drill rig carousel connection structures according to the present disclosure;
FIG. 3 is a schematic cross-sectional structural view of some embodiments of rotary drill rig carousel connection structures according to the present disclosure;
Fig. 4 is a schematic view of a partial cross-sectional structure of a drill mast in some embodiments of a rotary drilling rig according to the present disclosure.
It should be understood that the dimensions of the various elements shown in the figures are not drawn to actual scale. Further, the same or similar reference numerals denote the same or similar members.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only, and not limiting unless otherwise specifically stated.
The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In this disclosure, when a particular device is described as being located between a first device and a second device, there may or may not be an intervening device between the particular device and either the first device or the second device. When it is described that a particular device is connected to other devices, the particular device may be directly connected to the other devices without intervening devices, or may be directly connected to the other devices without intervening devices.
All terms (including technical or scientific terms) used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs, unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
As shown in fig. 1, is a schematic structural view of some embodiments of rotary drill rig rotary table connection structures according to the present disclosure. Referring to fig. 2 to4, in the present embodiment, a rotary drilling rig rotary table connection structure 100 includes: a turntable 110 and an integral base plate 120. The turntable 110 has a shaft hole 111 through which the rotation shaft passes, and the turntable 110 is rotatable with respect to the rotation shaft. The integral base plate 120 is fixedly arranged on the surface of the rotary plate 110, which is close to one side of the drill mast 200, and is provided with a through hole 121 matched with the shaft hole 111. The rotation shaft passes through the through hole 121 while passing through the shaft hole 111.
The integral base plate 120 of this embodiment may be machined to form a larger overall plane so as to form a larger area of surface contact with the drill mast 200. Compared with the small-area surface contact realized by a plurality of strip-shaped base plates which are distributed in a scattered manner in the prior art, the embodiment can realize larger contact area, reduce contact specific pressure, and further obtain stronger bearing capacity, thereby effectively improving the stress condition of the connecting structure.
The integral bottom plate 120 can be formed by one-step processing of the whole surface, and compared with the existing plurality of strip-shaped base plates, the integral contact surface of the integral bottom plate 120 is easier to ensure higher flatness, so that the abrasion and sintering of the contact surface can be effectively improved even under a heavy-load working condition, the gap of the bottom surface of the drilling mast during construction is improved, larger integral shaking amount is avoided, and the construction precision is further improved.
In order to form a large contact surface between the integrated base plate 120 and the drill mast 200, it is preferable that the width of the integrated base plate 120 is not smaller than the cross-sectional width of the drill mast 200. Referring to fig. 4, a drill mast 200 may include a mast 210 and a mounting plate 220. Mounting plate 220 may mate with unitary base plate 120, and mounting plate 220 may also have a relatively large planar surface capable of making relatively large area surface contact with the entire planar surface of unitary base plate 120. Referring to fig. 2, in particular, width W 1 of unitary bottom panel 120 may be equal to the cross-sectional width of mounting plate 220 or higher than the cross-sectional width of mounting plate 220.
In view of the relative rotation between the integrated base plate 120 and the drill mast 200, it is preferable that the integrated base plate 120 includes a convex arc structure 123 at least one end in the width direction (i.e., the horizontal direction as shown in fig. 2) in order to ensure a wide contact area at all times during rotation. The center of the convex arc structure 123 falls on the axis of the shaft hole 111. Thus, even if the integral base plate 120 rotates a predetermined angle relative to the drill mast 200, the overall width of the integral base plate 120 in the horizontal direction is still W 1, thereby ensuring that the contact area does not change significantly due to rotation. Referring to fig. 2, the height H of the monolithic substrate 120 may be equal to the width W 1 of the monolithic substrate 120. In some embodiments, the height H may also be less than the width W 1. Preferably, the surface area of the surface of the monolithic substrate 120 on the side near the drill mast 200 is 0.62-1.78 m 2.
Referring to fig. 1, in some embodiments, a first lubrication groove 122 is also formed in the surface of the monolithic base plate 120 on the side adjacent to the drill mast 200. By providing the first lubrication groove 122 on the surface of the integral base plate 120, the surface contact between the integral base plate 120 and the mounting plate 220 of the drill mast 200 can be lubricated, and the abrasion of the contact surface under the heavy load working condition can be reduced.
In order to obtain a high lubrication effect, the first oil groove 122 may include a plurality of concentric annular oil grooves 122b and radial oil grooves 122a radially radiating from the center of the through hole 121. The centers of the plurality of concentric annular oil grooves 122b may be located on the axis of the shaft hole 111, and the radial oil grooves 122a enable the lubricating oil of the respective concentric annular oil grooves 122b to circulate each other. This allows for a greater range of lubrication coverage through the plurality of concentric annular oil grooves 122b and radioactive oil grooves 122a.
Referring to fig. 1, in some embodiments, an upper base plate 130 may also be provided on the surface of the turntable 110 on the side adjacent to the drill mast 200. The upper base plate 130 is located above the integral base plate 120, and a wear-resistant pad 131 is further disposed on a surface of the upper base plate 130, which is close to one side of the drill mast 200. The upper base plate 130 and the wear-resistant pad 131 can form surface contact with the mounting plate 230 of the drill mast 200, and through the surface contact at the position, the contact area between the rotary table connecting structure 100 of the rotary drilling rig and the drill mast 200 is further enlarged, so that the contact specific pressure is reduced, stronger bearing capacity is realized, and the stress condition of the connecting structure is further improved.
The wear-resistant backing plate 131 has good wear resistance, and can reduce the contact surface abrasion of the part under the heavy load working condition. In addition, a second lubrication groove 132 may be formed on the surface of the wear-resistant pad 131 near the drill mast 200, so that the surface contact between the wear-resistant pad 131 and the mounting plate 230 of the drill mast 200 can be lubricated, and the abrasion of the contact surface under heavy load condition is further reduced.
In order to simplify the supply of lubrication oil at the location of the integrated base plate 120, referring to fig. 1 and 2, a plurality of lubrication oil flow passages 140 may be further provided between the upper base plate 130 and the integrated base plate 120. The lubrication oil flowing out of the second lubrication oil groove 132 may be guided to the first lubrication oil groove 122 by the plurality of lubrication oil flow passages 140. Further, the wear pad 131 is preferably provided with a lubricating oil filling port 133. Thus, by adding the lubricant to the upper portion of the lubricant inlet, the lubricant maintains the lubrication of the wear pad 131 and the integrated base plate 120 by the pressure and the guide of the lubricant flow path.
Based on the various embodiments of the rotary drilling rig rotary table connection 100 described above, the present disclosure provides a rotary drilling rig including a drill mast 200 and the rotary drilling rig rotary table connection 100 described above. For the rotary drilling rig, by adopting the rotary drilling rig turntable connecting structure 100, stronger bearing capacity can be obtained, and the stress condition of the connecting structure can be improved.
Thus, various embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concepts of the present disclosure, some details known in the art are not described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that the foregoing embodiments may be modified and equivalents substituted for elements thereof without departing from the scope and spirit of the disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (7)
1. Rotary drilling rig rotary table connection structure (100), characterized by comprising:
A turntable (110) having a shaft hole (111) through which the rotation shaft passes; and
An integral base plate (120) fixedly arranged on the surface of one side of the turntable (110) close to the drill mast (200) and provided with a through hole (121) matched with the shaft hole (111),
Wherein the integral base plate (120) has an integral contact surface that makes surface contact with the drill mast (200); an upper base plate (130) is further arranged on the surface, close to one side of the drill mast (200), of the turntable (110), the upper base plate (130) is located above the integral base plate (120), and a wear-resistant base plate (131) is further arranged on the surface, close to one side of the drill mast (200), of the upper base plate (130); a first lubrication oil groove (122) is further formed on the surface of the integral base plate (120) close to one side of the drill mast (200), and the first lubrication oil groove (122) comprises a plurality of concentric annular oil grooves (122 b) and radial oil grooves (122 a) which radiate along the radial direction with the center of the through hole (121);
The wear-resistant backing plate (131) is provided with a plurality of lubricating oil channels (140) between the upper base plate (130) and the integral base plate (120), the lubricating oil flowing out of the second lubricating oil channels (132) is guided to the first lubricating oil channels (122), and the wear-resistant backing plate (131) is provided with a lubricating oil filling port (133) for adding lubricating oil.
2. The rotary drilling rig rotary table connection (100) according to claim 1, wherein the width of the monolithic floor (120) is not smaller than the cross-sectional width of the drill mast (200).
3. The rotary drilling rig rotary table connection (100) according to claim 2, wherein the unitary floor (120) comprises a convex circular arc structure (123) at least one end in the width direction.
4. The rotary drilling rig rotary table connection (100) according to claim 2, wherein the height of the monolithic floor (120) is equal to or smaller than the width of the monolithic floor (120).
5. The rotary drilling rig turret connection structure (100) of claim 1, wherein the unitary floor (120) is formed in a single piece.
6. The rotary drilling rig rotary table connection (100) according to claim 1, wherein the surface area of the surface of the monolithic base plate (120) on the side close to the drill mast (200) is 0.62-1.78 m 2.
7. A rotary drilling rig comprising a drill mast (200) and a rotary drilling rig turret connection structure (100) according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895111.1A CN108678658B (en) | 2018-08-08 | 2018-08-08 | Rotary table connecting structure of rotary drilling rig and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895111.1A CN108678658B (en) | 2018-08-08 | 2018-08-08 | Rotary table connecting structure of rotary drilling rig and rotary drilling rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108678658A CN108678658A (en) | 2018-10-19 |
| CN108678658B true CN108678658B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810895111.1A Active CN108678658B (en) | 2018-08-08 | 2018-08-08 | Rotary table connecting structure of rotary drilling rig and rotary drilling rig |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110578466A (en) * | 2019-10-16 | 2019-12-17 | 徐州徐工基础工程机械有限公司 | Multi-shaft sleeve supported disc connecting mechanism, rotary drilling rig and working method |
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| CN106704386A (en) * | 2016-12-26 | 2017-05-24 | 河南科技大学 | Stepped under-ring lubricating bearing transition sleeve and oil supply disc thereof |
| CN208845096U (en) * | 2018-08-08 | 2019-05-10 | 徐州徐工基础工程机械有限公司 | Rotary drilling rig turntable connection structure and rotary drilling rig |
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2018
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| JP2008133883A (en) * | 2006-11-28 | 2008-06-12 | Mitsuba Corp | Electric motor with reduction gear mechanism |
| CN101975024A (en) * | 2010-09-26 | 2011-02-16 | 北京南车时代机车车辆机械有限公司 | Rotary drilling rig and turntable thereof |
| CN101967954A (en) * | 2010-09-30 | 2011-02-09 | 北京市三一重机有限公司 | Rotary table device of rotary drilling machine |
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| CN108678658A (en) | 2018-10-19 |
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