CN213297871U - Lifting device and rotary drilling rig - Google Patents
Lifting device and rotary drilling rig Download PDFInfo
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- CN213297871U CN213297871U CN202022406289.0U CN202022406289U CN213297871U CN 213297871 U CN213297871 U CN 213297871U CN 202022406289 U CN202022406289 U CN 202022406289U CN 213297871 U CN213297871 U CN 213297871U
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Abstract
The utility model provides a pair of lifting device and dig rig soon relates to engineering machine tool technical field to optimize the structure of lifting device to a certain extent, shorten the whole size of lifting device. The utility model provides a lifting device for a rotary drilling rig, which comprises a first joint, a cylinder, a second joint and a bidirectional thrust ball bearing; one end of the first joint is inserted into the cylinder from one end of the cylinder, and an installation cavity is formed at one end of the first joint inserted into the cylinder; the second joint comprises a mounting seat and a rotating shaft, the rotating shaft is inserted into the barrel from one end of the barrel, which is far away from the first joint, and one end of the rotating shaft, which is far away from the mounting seat, extends into the mounting cavity; the bidirectional thrust ball bearing is sleeved on the rotating shaft and is positioned in the cylinder body, and the first joint is abutted against one end of the bidirectional thrust ball bearing so as to tightly press the bidirectional thrust ball bearing; the rotating shaft is provided with a first abutting surface and a second abutting surface which are respectively abutted with two sides of the bidirectional thrust ball bearing, so that the bidirectional thrust ball bearing can bear double-axial load.
Description
Technical Field
The utility model belongs to the technical field of the engineering machine tool technique and specifically relates to a lifting device and dig rig soon.
Background
The elevator is an important structure adopted during operation of the rotary drilling rig, is a key component mainly used for lifting and hanging a drill rod and a drilling tool, the upper end of the elevator is connected with a main hoisting steel wire rope of the drilling rig, the lower end of the elevator is connected with the drill rod, the elevator drives the rotary drilling rod and a drill bit to be lifted and lowered along with the winding and unwinding of the main hoisting steel wire rope, the torsional force of the drill rod is born when a power head rotates to work and the drill bit throws earth, the torsional force transmission of the steel wire rope generated by rotation of the drill rod and the like is removed through rotation of the elevator, and the steel wire rope is prevented from being twisted.
The existing elevator has the disadvantages that the number of bearings used in the existing elevator is large, and the structure of a middle connector is complex, so that the overall size of the elevator is large, and the production and assembly processes are not easy to realize.
Therefore, it is urgently needed to provide a lifting device and a rotary drilling rig to solve the problems in the prior art to a certain extent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a carry and draw device and dig rig soon to optimize the structure of carrying the device to a certain extent, shorten the whole size of carrying the device.
The utility model provides a lifting device for a rotary drilling rig, which comprises a first joint, a cylinder, a second joint and a bidirectional thrust ball bearing; one end of the first joint is inserted into the cylinder from one end of the cylinder, and an installation cavity is formed at one end of the first joint inserted into the cylinder; the second joint comprises a mounting seat and a rotating shaft, the rotating shaft is inserted into the cylinder body from one end of the cylinder body, which is far away from the first joint, and one end of the rotating shaft, which is far away from the mounting seat, extends into the mounting cavity; the bidirectional thrust ball bearing is sleeved on the rotating shaft and is positioned in the cylinder body, and the first joint is abutted against one end of the bidirectional thrust ball bearing so as to tightly press the bidirectional thrust ball bearing; the rotating shaft is provided with a first abutting surface and a second abutting surface, the first abutting surface abuts against one side, facing the mounting seat, of the two-way thrust ball bearing, and the second abutting surface abuts against the other side of the two-way thrust ball bearing, so that the two-way thrust ball bearing can bear two-way axial load.
The rotating shaft comprises a rotating shaft main body, the rotating shaft main body is arranged in a step shape, and the step surface of the rotating shaft main body forms the first abutting surface; one side of the shaft ring facing the mounting seat is abutted against the first abutting surface of the rotating shaft.
The rotating shaft further comprises a positioning piece and a shaft sleeve, the positioning piece is sleeved on one end, close to the first joint, of the rotating shaft main body, the shaft sleeve is sleeved on the rotating shaft between the positioning piece and the shaft ring, and the second abutting surface is formed at one end, far away from the positioning piece, of the shaft sleeve; one side of the shaft ring, which faces the first joint, is abutted against the second abutting surface, and the seat ring is in clearance fit with the shaft sleeve.
Furthermore, a positioning piece is sleeved on one end of the rotating shaft close to the first joint, a shaft sleeve is sleeved on the rotating shaft between the positioning piece and the shaft ring, and a second abutting surface is formed at one end, far away from the positioning piece, of the shaft sleeve; one side of the shaft ring, which faces the first joint, is abutted against the shaft sleeve, and the seat ring is in clearance fit with the shaft sleeve.
Specifically, the positioning piece is located in the installation cavity, and the diameter of the positioning piece is smaller than the inner diameter of the installation cavity.
Furthermore, the positioning piece is a nut, and the rotating shaft is provided with threads, so that the positioning piece is in threaded connection with the rotating shaft.
The barrel is provided with a plurality of connecting pieces, and the connecting pieces penetrate through the barrel along the radial direction of the barrel and are connected with the first joint.
Specifically, one end of the mounting seat, which is far away from the cylinder body, is provided with a first U-shaped groove along the axial direction of the mounting seat; and a first connecting shaft penetrating through the first U-shaped groove is arranged along the radial direction of the mounting seat, so that a drilling tool of the rotary drilling rig is connected with the mounting seat.
Further, the first joint is far away from one end of the cylinder body, and a second U-shaped groove is formed in the axial direction of the first joint; and a second connecting shaft penetrating through the second U-shaped groove is arranged along the radial direction of the first joint so as to be connected with a steel wire rope of a main winch of the rotary drilling rig.
Compared with the prior art, the utility model provides a lifting device has following advantage:
the utility model provides a lifting device for a rotary drilling rig, which comprises a first joint, a cylinder, a second joint and a bidirectional thrust ball bearing; one end of the first joint is inserted into the cylinder from one end of the cylinder, and an installation cavity is formed at one end of the first joint inserted into the cylinder; the second joint comprises a mounting seat and a rotating shaft, the rotating shaft is inserted into the barrel from one end of the barrel, which is far away from the first joint, and one end of the rotating shaft, which is far away from the mounting seat, extends into the mounting cavity; the bidirectional thrust ball bearing is sleeved on the rotating shaft and is positioned in the cylinder body, and the first joint is abutted against one end of the bidirectional thrust ball bearing so as to tightly press the bidirectional thrust ball bearing; the rotating shaft is provided with a first abutting surface and a second abutting surface, the first abutting surface abuts against one side, facing the mounting seat, of the two-way thrust ball bearing, and the second abutting surface abuts against the other side of the two-way thrust ball bearing, so that the two-way thrust ball bearing can bear two-way axial loads.
From this analysis can know, through the one end of inserting the barrel with first joint to make first joint stretch into one of barrel and serve and form the installation cavity, penetrate the barrel with the one end of the pivot of second joint again, and insert in the installation cavity, thereby make first joint can compress tightly the two-way thrust ball bearing of cover setting in the pivot. The locating piece is sleeved on the rotating shaft and is in contact with the bidirectional thrust ball bearing, so that the gravity of a drilling tool of the rotary drilling rig can be transmitted to the bidirectional thrust ball bearing.
When the lifting device is used, the first joint is connected with a steel wire rope of a main winch of the rotary drilling rig, the drilling tool is connected with the second joint, the two-way thrust ball bearing is sleeved on the rotating shaft, the first abutting surface and the second abutting surface are formed on the rotating shaft, and when the steel wire rope of the main winch lifts the drilling tool through the lifting device, the gravity of the drilling tool is transmitted to the two-way thrust ball bearing through the second abutting surface of the rotating shaft.
When the drilling tool works, the drilling tool receives a force opposite to the drilling direction, and one side, facing the mounting seat, of the two-way thrust ball bearing is abutted to the first abutting surface, so that the force opposite to the drilling direction can be transmitted to the two-way thrust ball bearing, the lifting device provided by the application can bear a two-way axial load, and the cylinder and the first joint are static relative to the rotating shaft.
Because adopt a two-way thrust ball bearing can realize bearing two-way axial load and avoid wire rope to receive the torsional force of drilling tool in this application, consequently, can reduce the size of whole device and the complexity of assembling process to a certain extent.
In addition, the utility model also provides a rotary drilling rig, including foretell lifting device and drilling tool and main hoist; the drilling tool is connected with the second joint, and the steel wire rope of the main winch is connected with the first joint.
The rotary drilling rig adopting the hoisting device provided by the application can better bear bidirectional axial load, and the steel wire rope of the main winch is free from torsional force generated by rotation of the drill rod.
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 embodiments or the technical solutions in 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 those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a lifting device according to an embodiment of the present invention;
fig. 2 is a partially enlarged view of a portion a in fig. 1.
In the figure: 1-a first linker; 101-a mounting cavity; 2-a cylinder body; 3-a second linker; 301-a mounting seat; 302-a rotating shaft; 4-a bidirectional thrust ball bearing; 401-a collar; 402-a race; 5-a positioning member; 6-shaft sleeve; 7-a connector; 8-a first connecting shaft; 9-a second connecting shaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.
For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.
Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.
The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Fig. 1 is a schematic structural view of a lifting device according to an embodiment of the present invention, which shows a partial cross-sectional view of a corresponding first joint and a barrel portion of the lifting device; fig. 2 is a partially enlarged view of a portion a in fig. 1.
As shown in fig. 1 and fig. 2, the utility model provides a lifting device for a rotary drilling rig, comprising a first joint 1, a cylinder 2, a second joint 3 and a bidirectional thrust ball bearing 4; one end of the first joint 1 is inserted into the cylinder 2 from one end of the cylinder 2, and an installation cavity 101 is formed at one end of the first joint 1 inserted into the cylinder 2; the second joint 3 comprises a mounting seat 301 and a rotating shaft 302, the rotating shaft 302 is inserted into the cylinder 2 from one end of the cylinder 2 far away from the first joint 1, and one end of the rotating shaft 302 far away from the mounting seat 301 extends into the mounting cavity 101; the bidirectional thrust ball bearing 4 is sleeved on the rotating shaft 302 and is positioned in the cylinder body 2, and the first joint 1 is abutted against one end of the bidirectional thrust ball bearing 4 so as to tightly press the bidirectional thrust ball bearing 4; the shaft 302 is formed with a first contact surface that contacts one side of the bidirectional thrust ball bearing 4 facing the mount base 301, and a second contact surface that contacts the other side of the bidirectional thrust ball bearing 4, so that the bidirectional thrust ball bearing 4 can receive a bidirectional axial load.
Compared with the prior art, the utility model provides a lifting device has following advantage:
the utility model provides a lifting device is through the one end that inserts barrel 2 with first joint 1 to make first joint 1 stretch into one of barrel 2 and serve and form installation cavity 101, penetrate barrel 2 with the one end of the pivot 302 of second joint 3 again, and insert in installation cavity 101, thereby make first joint 1 can compress tightly the cover and establish two-way thrust ball bearing 4 in the pivot 302. The rotating shaft 302 is sleeved with the positioning piece 5, and the positioning piece 5 is in contact with the two-way thrust ball bearing 4, so that the gravity of a drilling tool of the rotary drilling rig can be transmitted to the two-way thrust ball bearing 4.
During the use, be connected first joint 1 with the wire rope of the main hoist of rotary drilling rig, the drilling tool is connected with second joint 3, because the cover is equipped with two-way thrust ball bearing 4 on the pivot 302, and is formed with first butt face and second butt face on the pivot 302, when the wire rope of main hoist hoisted the drilling tool through lifting device, the gravity of drilling tool transmitted to two-way thrust ball bearing 4 through the second butt face of pivot 302.
When the drill tool is operated, the drill tool receives a force in the direction opposite to the drilling direction, and one side of the bidirectional thrust ball bearing 4 facing the mounting seat 301 is in contact with the first contact surface, so that the force in the direction opposite to the drilling direction can be transmitted to the bidirectional thrust ball bearing 4, the lifting device provided by the application can bear a load in the bidirectional axial direction, and the barrel 2 and the first joint 1 can be stationary relative to the rotating shaft 302.
Because the bidirectional thrust ball bearing 4 is adopted in the application, the bidirectional axial load can be borne, and the steel wire rope is prevented from being subjected to the torsional force of the drilling tool, so that the size of the whole device and the complexity of the assembly process can be reduced to a certain extent.
As shown in fig. 1 and fig. 2, the bidirectional thrust ball bearing 4 includes a shaft ring 401 and two races 402, the number of the races 402 is two, and the two races 402 are located on two sides of the shaft ring 401; the shaft ring 401 is fixedly connected with the rotating shaft 302, and the two seat rings 402 are fixedly connected with the cylinder 2.
Shaft collar 401 and pivot 302 fixed connection, the seat circle 402 that is located both sides and barrel 2 fixed connection, when pivot 302 is rotatory, shaft collar 401 can be rotatory for seat circle 402 to make the barrel 2 relative second joint 3 static with seat circle 402 fixed connection, and then make the first joint 1 relative second joint 3 static that is connected with barrel 2, avoid wire rope to receive the torsional force that the drilling tool is rotatory to be brought.
It should be added that, preferably, the rotating shaft 302 in the present application includes a rotating shaft main body, the rotating shaft main body is disposed in a step shape, and a step surface of the rotating shaft main body forms a first abutting surface.
The shaft collar 401 is sleeved on the small-diameter rotating shaft 302, and one side of the shaft collar 401 departing from the first joint 1 is abutted against the large-diameter rotating shaft 302.
Specifically, as shown in fig. 1 and fig. 2, in the lifting device provided by the present invention, the rotating shaft 302 further includes a positioning member 5 and a shaft sleeve 6; a positioning piece 5 is sleeved on one end of the rotating shaft main body close to the first joint 1, a shaft sleeve 6 is sleeved on the rotating shaft 302 between the positioning piece 5 and the shaft ring 401, and a second abutting surface is formed at one end, far away from the positioning piece 5, of the shaft sleeve 6; the side of the collar 401 facing the first joint 1 abuts against the second abutment surface, and the raceway 402 is clearance-fitted to the sleeve 6.
In this application, the shaft sleeve 6 is sleeved on the rotating shaft 302 with a small diameter and is located between the positioning member 5 and the bidirectional thrust ball bearing 4. One end of the shaft sleeve 6 is connected with the positioning part 5, and the other end of the shaft sleeve 6 is propped against one side, deviating from the mounting seat 301, of the shaft sleeve 6.
In operation, the shaft sleeve 6 rotates along with the rotating shaft 302, the positioning element 5 compresses the shaft ring 401 of the bidirectional thrust ball bearing 4 through the shaft sleeve 6, and the gravity of the drilling tool is transmitted to the bidirectional thrust ball bearing 4.
Further, as shown in fig. 1 and fig. 2, the positioning member 5 is located in the installation cavity 101, and the diameter of the positioning member 5 is smaller than the inner diameter of the installation cavity 101.
The diameter of the positioning element 5 is smaller than the inner diameter of the mounting cavity 101, so that the positioning element 5 can rotate relative to the first joint 1 during operation.
Set up installation cavity 101 on first joint 1 to set up setting element 5 in installation cavity 101, can reduce the overall dimension of lifting device to a certain extent.
Further, as shown in fig. 1 and fig. 2, the positioning element 5 is a nut, and the rotating shaft 302 is provided with a thread, so that the positioning element 5 is in threaded connection with the rotating shaft 302.
Set up setting element 5 as the nut, and set up the screw thread on pivot 302, make setting element 5 can with pivot 302 threaded connection, on the one hand can promote the stability of connection to a certain extent, when avoiding pivot 302 to rotate, setting element 5 produces not hard up problem, on the other hand, because the drilling tool of rig is dug soon in the connection of second joint 3, therefore, the weight of drilling tool can be transmitted to two-way thrust ball bearing 4 through setting element 5 and axle sleeve 6 on, through threaded connection, also can undertake the weight of partial drilling tool to a certain extent, avoid two-way thrust ball bearing 4 too big problem that causes the damage of pressure.
As shown in fig. 1 and fig. 2, the cylinder 2 is provided with a plurality of connecting members 7, and the connecting members 7 penetrate through the cylinder 2 along the radial direction of the cylinder 2 and are connected with the first connector 1.
In this application, barrel 2 and first joint 1 are gone up and are all seted up the locating hole that the counterpoint switched on mutually, and connecting piece 7 passes barrel 2 and stretches into in the locating hole of first joint 1 to be connected barrel 2 and first joint 1, and then when the operation, make first joint 1 and barrel 2 homoenergetic relative second connect 3 static.
Preferably, the connecting piece 7 in this application is the bolt, and the locating hole that sets up on barrel 2 and the first joint 1 is the screw to can realize the dismouting between first joint 1 and the barrel 2 convenient and fast.
Further, as shown in fig. 1 and fig. 2, an end of the mounting seat 301 away from the cylinder 2 is formed with a first U-shaped groove along an axial direction of the mounting seat 301; a first connecting shaft 8 penetrating through the first U-shaped groove is arranged along the radial direction of the mounting seat 301, so that a drilling tool of the rotary drilling rig is connected with the mounting seat 301 through a steel wire rope.
During assembly, the first connecting shaft 8 is separated from the mounting seat 301, the lifting lug on the drilling tool is inserted into the first U-shaped groove, and the drilling tool penetrates through the mounting seat 301 and the lifting lug through the first connecting shaft 8, so that the connection between the drilling tool and the second joint 3 is realized.
Furthermore, as shown in fig. 1 and fig. 2, the first joint 1 is far away from one end of the cylinder 2, and a second U-shaped groove is formed along the axial direction of the first joint 1; and a second connecting shaft 9 penetrating through a second U-shaped groove is arranged along the radial direction of the first joint 1 so as to be connected with a steel wire rope of a main winch of the rotary drilling rig.
During assembly, the steel wire rope of the main winch of the rotary drilling rig is connected with the second connecting shaft 9, so that the steel wire rope of the main winch is connected with the first connector 1, and the assembly of the whole operation mechanism is completed.
In addition, the utility model also provides a rotary drilling rig, including foretell lifting device and drilling tool and main hoist; the drilling tool is connected with the second joint 3, and the steel wire rope of the main winch is connected with the first joint 1.
The rotary drilling rig adopting the hoisting device provided by the application is provided with the bidirectional thrust ball bearing 4, so that the steel wire rope of the main winch is not subjected to torsional force generated by rotation of a drilling tool while the bidirectional axial load can be well borne.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A lifting device is used for a rotary drilling rig and is characterized by comprising a first joint, a barrel, a second joint and a bidirectional thrust ball bearing;
one end of the first joint is inserted into the cylinder from one end of the cylinder, and an installation cavity is formed at one end of the first joint inserted into the cylinder;
the second joint comprises a mounting seat and a rotating shaft, the rotating shaft is inserted into the cylinder body from one end of the cylinder body, which is far away from the first joint, and one end of the rotating shaft, which is far away from the mounting seat, extends into the mounting cavity;
the bidirectional thrust ball bearing is sleeved on the rotating shaft and is positioned in the cylinder body, and the first joint is abutted against one end of the bidirectional thrust ball bearing so as to tightly press the bidirectional thrust ball bearing;
the rotating shaft is provided with a first abutting surface and a second abutting surface, the first abutting surface abuts against one side, facing the mounting seat, of the two-way thrust ball bearing, and the second abutting surface abuts against the other side of the two-way thrust ball bearing, so that the two-way thrust ball bearing can bear two-way axial load.
2. The lifting device according to claim 1, wherein the two-way thrust ball bearing comprises a shaft ring and two races, two races being located on either side of the shaft ring;
the shaft ring is fixedly connected with the rotating shaft, and the two seat rings are fixedly connected with the barrel.
3. The lifting device according to claim 2, wherein the rotating shaft comprises a rotating shaft main body, the rotating shaft main body is arranged in a step shape, and the step surface of the rotating shaft main body forms the first abutting surface;
one side of the shaft ring facing the mounting seat is abutted against the first abutting surface of the rotating shaft.
4. The lifting device according to claim 3, wherein the rotating shaft further comprises a positioning element and a shaft sleeve, the positioning element is sleeved on one end of the rotating shaft main body close to the first joint, the shaft sleeve is sleeved on the rotating shaft between the positioning element and the shaft ring, and the second abutting surface is formed on one end of the shaft sleeve far away from the positioning element;
one side of the shaft ring, which faces the first joint, is abutted against the second abutting surface, and the seat ring is in clearance fit with the shaft sleeve.
5. The lifting device as recited in claim 4, wherein the positioning member is located within the mounting cavity, and the positioning member has a diameter that is less than an inner diameter of the mounting cavity.
6. The lifting device according to claim 4, wherein the positioning member is a nut, and the rotating shaft is threaded so that the positioning member is in threaded connection with the rotating shaft.
7. The lifting device according to claim 1, wherein the cylinder is provided with a plurality of connecting members, and the connecting members penetrate through the cylinder in a radial direction of the cylinder and are connected with the first connector.
8. The lifting device as recited in claim 1, wherein the mounting seat is formed with a first U-shaped groove along an axial direction of the mounting seat at an end thereof remote from the cylinder;
and a first connecting shaft penetrating through the first U-shaped groove is arranged along the radial direction of the mounting seat, so that a drilling tool of the rotary drilling rig is connected with the mounting seat.
9. The lifting device as recited in claim 1, wherein the first joint is formed with a second U-shaped groove along an axial direction of the first joint, at an end thereof remote from the cylinder;
and a second connecting shaft penetrating through the second U-shaped groove is arranged along the radial direction of the first joint so as to be connected with a steel wire rope of a main winch of the rotary drilling rig.
10. A rotary drilling rig, characterized by comprising the lifting device, the drilling tool and the main winch according to any one of the claims 1 to 9;
the drilling tool is connected with the second joint, and the steel wire rope of the main winch is connected with the first joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022406289.0U CN213297871U (en) | 2020-10-26 | 2020-10-26 | Lifting device and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022406289.0U CN213297871U (en) | 2020-10-26 | 2020-10-26 | Lifting device and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213297871U true CN213297871U (en) | 2021-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022406289.0U Active CN213297871U (en) | 2020-10-26 | 2020-10-26 | Lifting device and rotary drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213297871U (en) |
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2020
- 2020-10-26 CN CN202022406289.0U patent/CN213297871U/en active Active
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