CN218971106U - Removable driving sleeve for power head of rotary drilling rig - Google Patents
Removable driving sleeve for power head of rotary drilling rig Download PDFInfo
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- CN218971106U CN218971106U CN202223486231.7U CN202223486231U CN218971106U CN 218971106 U CN218971106 U CN 218971106U CN 202223486231 U CN202223486231 U CN 202223486231U CN 218971106 U CN218971106 U CN 218971106U
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- inner driving
- outer sheath
- sleeve
- rotary drilling
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Abstract
The utility model relates to the technical field of rotary drilling rig parts, in particular to a detachable driving sleeve for a rotary drilling rig power head, which comprises an inner driving sleeve and an outer sheath detachably connected with the outer part of the inner driving sleeve, wherein end covers are detachably connected with the ends of the inner driving sleeve and the outer sheath; the inner wall of the inner driving sleeve is uniformly provided with driving keys, and the driving keys and the inner driving sleeve are integrally formed; the outer side wall of the inner driving sleeve is provided with a shaft shoulder, the end face of the outer sheath is abutted against the side face of the shaft shoulder, one end face of the inner driving sleeve is abutted against the inner wall step of the outer sheath, the end cover is arranged at one end, close to the shaft shoulder, of the inner driving sleeve, the inner wall part of the end cover is connected with the outer part of the inner driving sleeve in a matching way, and the other part of the inner wall of the end cover is connected with the outer part of the outer sheath in a matching way; the utility model enables the driving key and the inner driving sleeve to be integrally formed, reduces the disassembly and the installation of the driving key, effectively ensures the stability and the strength of transmission and prolongs the service life of the inner driving sleeve.
Description
Technical Field
The utility model relates to the technical field of rotary drilling rig parts, in particular to a detachable driving sleeve for a rotary drilling rig power head.
Background
The power head of the rotary drilling rig is a core transmission component for the rotary drilling rig to work and consists of a motor, a speed reducer, a power box, a driving sleeve, a damping device and the like. The hydraulic motor outputs torque and rotating speed, and the driving sleeve rotates and transmits the torque and rotating speed to the drill rod and the drill bit to realize drilling operation. The driving sleeve is of a cylindrical structure, a plurality of driving key bars are uniformly arranged on the inner wall of the driving sleeve, and the output torque and the output rotation speed are transmitted through the contact between the driving sleeve key bars and the drill rod key bars, so that one side of the driving sleeve key bars, which is in contact with the drill rod key bars, is easy to wear, the transmission efficiency is affected by light impact, the transmission failure is caused by heavy impact, and the driving sleeve and the key bars thereof need to be replaced frequently during use, so that the production efficiency is greatly affected.
To solve the above technical problems, chinese patent CN205089208U discloses a power head driving sleeve of a rotary drilling rig. The driving sleeve comprises a driving sleeve body and a plurality of movable key bars, wherein the driving sleeve body is provided with a plurality of key grooves along the axial direction, the driving sleeve body is formed by welding a large flange, an upper flange, a middle sleeve and a lower flange, the upper flange and the lower flange are welded at two ends of the middle sleeve, the large flange is welded at the middle part of the middle sleeve, two ends of the key grooves of the driving sleeve body sink downwards along the radial direction to form a sink groove, one ends of the movable key bars are protruded along the thickness direction to form a bearing table, the movable key bars are clamped in the key grooves, the bearing table is clamped in the sink groove, and the inner side surface of the bearing table is propped against the side wall of the sink groove. The movable key bar transition matching surface is used for bearing pressure, the bearing table is used for bearing axial pressure, so that the bolts are prevented from being directly sheared, and the service life of the movable key bar is prolonged; however, the key bars are detachably arranged in the driving sleeve, so that the key bars need to be frequently replaced, and the positioning and matching of the movable key bars are not facilitated.
Therefore, the detachable driving sleeve for the power head of the rotary drilling rig is provided, the service life of the driving sleeve is prolonged, the replacement frequency and the replacement difficulty are reduced, and the production efficiency is improved by a person skilled in the art.
Disclosure of Invention
The utility model aims to provide a detachable driving sleeve for a power head of a rotary drilling rig, which solves the technical problems that key bars in the driving sleeve are easy to wear, and the driving sleeve and the key bars thereof need to be replaced frequently when in use, so that the production efficiency is greatly influenced.
The technical scheme adopted for solving the technical problems is as follows: the detachable driving sleeve for the power head of the rotary drilling rig comprises an inner driving sleeve and an outer sheath detachably connected with the outer part of the inner driving sleeve, wherein end covers are detachably connected with the ends of the inner driving sleeve and the outer sheath; the inner wall of the inner driving sleeve is uniformly provided with driving keys, and the driving keys and the inner driving sleeve are integrally formed; the inner driving sleeve is characterized in that a shaft shoulder is arranged on the outer side wall of the inner driving sleeve, the end face of the outer sheath is abutted on the side face of the shaft shoulder, one end face of the inner driving sleeve is abutted on the inner wall step of the outer sheath, the end cover is arranged at one end, close to the shaft shoulder, of the inner driving sleeve, the inner wall part of the end cover is connected with the outer part of the inner driving sleeve in a matched mode, and the other part of the inner wall of the end cover is connected with the outer part of the outer sheath in a matched mode.
Further, through holes are uniformly formed in the shaft shoulder along the axial direction, threaded holes are uniformly formed in the end face of the outer sheath along the axial direction, and one through hole is opposite to one threaded hole.
Further, a bolt is connected in the threaded hole in a threaded mode, and the bolt penetrates through the through hole.
Further, a positioning ring is arranged on the end face of the inner driving sleeve and is connected in the outer sheath in a matched mode.
Further, the outer diameter of the positioning ring is smaller than the outer diameter of the inner driving sleeve, and the inner diameter of the positioning ring is larger than the inner diameter of the inner driving sleeve.
Further, a first matching thread and a second matching thread are arranged on the inner wall of the end cover, a first connecting thread is arranged on the outer side wall of the inner driving sleeve, and a second connecting thread is arranged on the outer side wall of the outer sheath.
Further, the first matching thread is matched and connected with the first connecting thread, and the second matching thread is matched and connected with the second connecting thread.
Further, a sealing ring is arranged between the end cover and the inner driving sleeve, and a sealing ring is arranged between the end cover and the outer sheath.
Further, the inner drive sleeve and the outer sheath are coaxially arranged.
The beneficial effects of the utility model are as follows:
the utility model enables the driving key and the inner driving sleeve to be integrally formed, reduces the disassembly and the installation of the driving key, effectively ensures the stability and the strength of transmission and prolongs the service life of the inner driving sleeve. When the drive key is worn and needs to be replaced, the inner drive sleeve is directly replaced, the number of the removed parts is reduced, the use stability of the transmission parts is guaranteed, and the installation convenience is improved. Meanwhile, the end cover is adopted to provide protection for the connecting part between the inner driving sleeve and the outer sheath, so that the influence of sediment, dust and the like on the connecting part of the inner driving sleeve in the working process is reduced, the service life of the inner driving sleeve is prolonged, meanwhile, the end cover can also prevent leakage of sealing oil between the inner driving sleeve and the outer sheath, and the use safety of the inner driving sleeve is improved.
Drawings
Fig. 1 is a perspective view of a detachable drive sleeve for a rotary drilling machine power head of the present utility model.
Fig. 2 is an exploded view of the detachable drive sleeve for the rotary drilling machine power head of the present utility model.
Fig. 3 is a front view of a removable drive sleeve for a rotary drilling machine power head of the present utility model.
Fig. 4 is a cross-sectional view taken along A-A in fig. 3.
The components in the drawings are marked as follows: 11. an inner drive sleeve; 111. a shaft shoulder; 112. a first connection thread; 113. a positioning ring; 114. a through hole; 12. an outer sheath; 121. a threaded hole; 122. a second connecting thread; 13. an end cap; 131. a first mating thread; 132. a second mating thread; 14. and driving the key.
Detailed Description
The present utility model will now be described in detail with reference to the accompanying drawings. The figure is a simplified schematic diagram illustrating the basic structure of the utility model only by way of illustration, and therefore it shows only the constitution related to the utility model.
Referring to fig. 1, 2 and 3, the utility model provides a detachable driving sleeve for a power head of a rotary drilling rig, which comprises an inner driving sleeve 11 and an outer sheath 12 sleeved outside the inner driving sleeve 11, wherein end covers 13 are detachably connected with the ends of the inner driving sleeve 11 and the outer sheath 12; during the use, install interior drive sleeve 11 to the oversheath 12 in, again with end cover 13 fixed to interior drive sleeve 11 and oversheath 12 tip, guarantee connection stability, drive hydraulic motor (not shown) output moment of torsion and rotational speed, detachable drive sleeve gyration and transmission moment of torsion and rotational speed are given drilling rod and drill bit (not shown) and are realized drilling operation, after interior drive sleeve 11 wearing and tearing, can change it fast, improve the convenience of use.
Further, referring to fig. 2 and 4, the inner driving sleeve 11 has a cylindrical structure with two open ends, driving keys 14 are uniformly arranged on the inner wall of the inner driving sleeve 11, and the driving keys 14 and the inner driving sleeve 11 are integrally formed; when in use, the output torque and the output rotation speed are transmitted through the contact between the driving key 14 and a drill rod key bar (not shown), and the driving key 14 and the inner driving sleeve 11 are cast integrally, so that the disassembly and the assembly of the driving key 14 are reduced, the transmission stability and the transmission strength are effectively ensured, and the service life of the inner driving sleeve 11 is prolonged.
Preferably, the inner drive sleeve 11 is made of low alloy steel. The inner drive sleeve 11 is arranged coaxially with the outer jacket 12.
Further, a shaft shoulder 111 is arranged on the outer side wall of the inner driving sleeve 11, the outer sheath 12 is in a cylindrical structure with two open ends, the outer sheath 12 is sleeved outside the inner driving sleeve 11, the end face of the outer sheath 12 is abutted against the side face of the shaft shoulder 111, and the inner driving sleeve 11 is connected in the outer sheath 12 by using a bolt or a screw and other fastening members in a threaded manner; during the use, through installing interior drive cover 11 to the oversheath 12 in, oversheath 12 installs on dig rig unit head soon (not shown in the figure), when needs change, directly demolish interior drive cover 11, reduce the quantity of demolishing the part, guarantee the stability in use of transmission part, improve the installation convenience.
Specifically, through holes 114 are uniformly formed in the shaft shoulder 111 along the axial direction, threaded holes 121 are uniformly formed in the end face of the outer jacket 12 along the axial direction, one through hole 114 is opposite to one threaded hole 121, and fasteners such as bolts or screws penetrate through the through holes 114 and are in threaded connection with the threaded holes 121, so that the inner driving sleeve 11 is ensured to be stably installed in the outer jacket 12.
Further, a positioning ring 113 is arranged on the end face of the inner driving sleeve 11, the end face of the inner driving sleeve 11 close to the positioning ring 113 is abutted against the inner wall step of the outer sheath 12, and the positioning ring 113 is connected in the outer sheath 12 in a matching way; when in use, the inner driving sleeve 11 is installed in the outer sheath 12, the positioning ring 113 is matched and connected with the outer sheath 12 to complete the preset positioning, and then the fastening pieces such as bolts or screws pass through the through holes 114 and are connected in the threaded holes 121 in a threaded manner, so that the inner driving sleeve 11 can be accurately installed in the outer sheath 12.
Preferably, the outer diameter of the positioning ring 113 is smaller than the outer diameter of the inner driving sleeve 11, and the inner diameter of the positioning ring 113 is larger than the inner diameter of the inner driving sleeve 11.
Further, the end cover 13 is in a cylindrical structure with two open ends, the end cover 13 is arranged at one end of the inner driving sleeve 11, which is close to the shaft shoulder 111, the inner wall part of the end cover 13 is connected with the outer part of the inner driving sleeve 11 in a matching way, and the other part of the inner wall of the end cover 13 is connected with the outer part of the outer sheath 12 in a matching way; when the inner driving sleeve 11 is in use, after being connected into the outer sheath 12 in a threaded manner, the end cover 13 is adopted to provide protection for the connecting part between the inner driving sleeve 11 and the outer sheath 12, so that the influence of sediment, dust and the like on the connecting part of the inner driving sleeve 11 in the working process is reduced, the service life of the inner driving sleeve is prolonged, meanwhile, the end cover 13 can also prevent leakage of sealing oil between the inner driving sleeve 11 and the outer sheath 12, and the use safety of the inner driving sleeve is improved.
Further, a first mating thread 131 and a second mating thread 132 are provided on the inner wall of the end cover 13, a first connecting thread 112 is provided on the outer side wall of the inner driving sleeve 11 near the opening, and a second connecting thread 122 is provided on the outer side wall of the outer sheath 12 near the threaded hole 121; the first mating thread 131 is mated with the first connecting thread 112, and the second mating thread 132 is mated with the second connecting thread 122.
The end cover 13 is connected outside the inner driving sleeve 11 and the outer sheath 12 in a threaded manner, so that the connecting effect and the sealing effect between the inner driving sleeve 11 and the outer sheath 12 are improved, and the service stability and the service life of the utility model are ensured.
Preferably, a sealing ring (not shown) is disposed between the end cover 13 and the inner driving sleeve 11, and a sealing ring (not shown) is disposed between the end cover 13 and the outer sheath 12, and the sealing ring is made of rubber.
The specific operation mode of the utility model is as follows: the inner driving sleeve 11 is inserted into the outer sheath 12, so that the positioning ring 113 is matched and connected with the outer sheath 12 to complete the preset positioning; the fasteners, such as bolts or screws, are then threaded through the through holes 114 and into the threaded holes 121, thereby ensuring that the inner drive sleeve 11 is accurately installed within the outer jacket 12. The end cap 13 is screwed outside the inner drive sleeve 11 and the outer sheath 12 to complete the installation.
The utility model enables the driving key 14 and the inner driving sleeve 11 to be integrally formed, reduces the disassembly and the installation of the driving key 14, effectively ensures the stability and the strength of transmission, and prolongs the service life of the inner driving sleeve 11. When the driving key 14 is worn and needs to be replaced, the inner driving sleeve 11 is directly replaced, the number of dismantling parts is reduced, the use stability of the transmission parts is ensured, and the installation convenience is improved. Meanwhile, the end cover 13 is adopted to provide protection for the connection part between the inner driving sleeve 11 and the outer sheath 12, so that the influence of sediment, dust and the like on the connection part of the inner driving sleeve 11 in the working process is reduced, the service life of the utility model is prolonged, meanwhile, the end cover 13 can also prevent leakage of sealing oil between the inner driving sleeve 11 and the outer sheath 12, and the use safety of the utility model is improved.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. The detachable driving sleeve for the power head of the rotary drilling rig is characterized by comprising an inner driving sleeve (11) and an outer sheath (12) detachably connected with the outer part of the inner driving sleeve (11), wherein end covers (13) are detachably connected with the ends of the inner driving sleeve (11) and the outer sheath (12); the inner wall of the inner driving sleeve (11) is uniformly provided with driving keys (14), and the driving keys (14) and the inner driving sleeve (11) are integrally formed; the inner driving sleeve is characterized in that a shaft shoulder (111) is arranged on the outer side wall of the inner driving sleeve (11), the end face of the outer sheath (12) is abutted to the side face of the shaft shoulder (111), one end face of the inner driving sleeve (11) is abutted to the inner wall step of the outer sheath (12), the end cover (13) is arranged at one end, close to the shaft shoulder (111), of the inner driving sleeve (11), the inner wall part of the end cover (13) is connected with the outer part of the inner driving sleeve (11) in a matched mode, and the other part of the inner wall of the end cover (13) is connected with the outer sheath (12) in a matched mode.
2. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 1, wherein through holes (114) are uniformly formed in the shaft shoulder (111) along the axial direction, threaded holes (121) are uniformly formed in the end face of the outer jacket (12) along the axial direction, and one through hole (114) is opposite to one threaded hole (121).
3. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 2, wherein a bolt is connected to the threaded hole (121) in a threaded manner, and the bolt passes through the through hole (114).
4. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 1, wherein a positioning ring (113) is arranged on the end face of the inner driving sleeve (11), and the positioning ring (113) is connected in the outer sheath (12) in a matching way.
5. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 4, wherein the outer diameter of the positioning ring (113) is smaller than the outer diameter of the inner driving sleeve (11), and the inner diameter of the positioning ring (113) is larger than the inner diameter of the inner driving sleeve (11).
6. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 1, wherein a first matching thread (131) and a second matching thread (132) are arranged on the inner wall of the end cover (13), a first connecting thread (112) is arranged on the outer side wall of the inner driving sleeve (11), and a second connecting thread (122) is arranged on the outer side wall of the outer sheath (12).
7. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 6, wherein the first matching thread (131) is matched and connected with the first connecting thread (112), and the second matching thread (132) is matched and connected with the second connecting thread (122).
8. The detachable driving sleeve for the power head of the rotary drilling rig according to claim 1, wherein a sealing ring is arranged between the end cover (13) and the inner driving sleeve (11), and a sealing ring is arranged between the end cover (13) and the outer sheath (12).
9. A detachable driving sleeve for a power head of a rotary drilling rig according to claim 1, characterized in that the inner driving sleeve (11) and the outer jacket (12) are coaxially arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223486231.7U CN218971106U (en) | 2022-12-26 | 2022-12-26 | Removable driving sleeve for power head of rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223486231.7U CN218971106U (en) | 2022-12-26 | 2022-12-26 | Removable driving sleeve for power head of rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218971106U true CN218971106U (en) | 2023-05-05 |
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ID=86165233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223486231.7U Active CN218971106U (en) | 2022-12-26 | 2022-12-26 | Removable driving sleeve for power head of rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218971106U (en) |
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2022
- 2022-12-26 CN CN202223486231.7U patent/CN218971106U/en active Active
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