CN114320179A - Power head driving key sleeve device and rotary drilling rig power head - Google Patents
Power head driving key sleeve device and rotary drilling rig power head Download PDFInfo
- Publication number
- CN114320179A CN114320179A CN202210013346.XA CN202210013346A CN114320179A CN 114320179 A CN114320179 A CN 114320179A CN 202210013346 A CN202210013346 A CN 202210013346A CN 114320179 A CN114320179 A CN 114320179A
- Authority
- CN
- China
- Prior art keywords
- key
- driving
- sleeve
- key body
- power head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses a power head driving key sleeve device and a rotary drilling rig power head, wherein the driving key sleeve device comprises a driving sleeve and a driving key matched with a drill rod, a plurality of mounting grooves extending along the axial direction of the driving sleeve are formed in the inner side wall of the driving sleeve, a driving key is arranged in each mounting groove, each driving key comprises a first key body in sliding clearance fit with the mounting groove and a second key body protruding out of the inner side wall of the driving sleeve, and the first key body and the second key body are coaxially arranged with the driving sleeve; each driving key is fixedly connected with the driving sleeve through the upper pressing plate and the lower pressing plate corresponding to the driving key. According to the driving key sleeve device, the upper pressing plate and the lower pressing plate are arranged at the two ends of the driving sleeve to fix the driving key strips, so that the replacement and maintenance of the driving key strips of the power head are facilitated; the rotary drilling rig power head adopts a brand-new dovetail type key bar driving mode, can further improve the high efficiency and stability of product construction, and can create more profits for customers better.
Description
Technical Field
The invention relates to the technical field of engineering machinery driving devices, in particular to a power head driving key sleeve device and a rotary drilling rig power head.
Background
In the construction process of the rotary drilling rig, the power head directly transmits torque and pressurizing force to the drill pipe and the drill bucket, and plays an important role in the equipment cutting and soil drilling operation. The power head assembly drives a power head motor by a hydraulic system, the motor drives a speed reducer to perform rotary motion through a spline connection, a shaft end gear of the speed reducer is meshed with a speed reducer box gear of the power head, and finally a rotary motion with large torque is output by a power head driving key sleeve after multi-stage speed reduction, and the rotary motion directly drives the rotary cutting motion of the drill pipe drilling bucket; meanwhile, the lower end of a driving key of the power head is in contact with a pressurizing table of a machine-locked drill rod, and under the action of a pressurizing oil cylinder, the driving key of the power head transmits pressurizing force to a drill bucket of the drill rod, so that the drill bucket can pressurize in a hole and rotate to cut and drill, and under the action of the pressurizing force and the rotating torque, the equipment is more efficient and reasonable in construction when meeting hard-layer geology.
In the prior art, the utility model 201310115407.4 discloses a combination formula drive key of digging rig unit head detachable soon faithfully, and unit head drive key cover passes through the bolt and installs in the drive key cover, utilizes powerful pretightning force to let drive key and drive key cover close laminating together, utilizes the stiction power that produces between the two to transmit moment of torsion and add pressure for the drilling rod drilling bucket to realize the construction requirement. In normal construction, hard layer geology is often encountered due to complex geological conditions. In the contradiction, because the after-sale maintenance cost of the drill rod is too high and the workload is very large, the strength and the hardness of the power head driving key bar are 1-2 levels lower than those of the drill rod in heat treatment, so that the driving key bar is easy to wear. Therefore, the power head driving key bar is seriously abraded after being used for a period of time, and because the driving key bar is positioned in the power head and is not easy to observe, half of the mounting bolt is abraded carelessly, so that the driving key bar is difficult to take out of the driving key sleeve, and the replacement work is particularly troublesome.
Disclosure of Invention
The invention aims to provide a power head driving key sleeve device to solve the problems that a power head driving key strip provided in the background technology is difficult to disassemble, assemble and maintain and has large after-sale workload.
In order to achieve the purpose, the invention provides a power head driving key sleeve device which comprises a driving sleeve and driving keys matched with a drill rod, wherein a plurality of mounting grooves extending along the axial direction of the driving sleeve are formed in the inner side wall of the driving sleeve, one driving key is arranged in each mounting groove, each driving key comprises a first key body inserted in the mounting groove and a second key body protruding out of the inner side wall of the driving sleeve, the first key body and the second key body are coaxially arranged with the driving sleeve, and each driving key is fixedly connected with the driving sleeve through an upper pressing plate and a lower pressing plate which correspond to the driving key body.
Further, the mounting groove is a dovetail groove, the first key body is a dovetail key body matched with the dovetail groove, and the first key body is arranged in the dovetail groove in a clearance mode.
Furthermore, the first key body and the second key body are arranged in a split manner, and the first key body is fixedly connected with the second key body through a connecting piece; or, the first key body and the second key body are integrally formed.
Furthermore, the thickness of the second key body is 0.6-1 times of the thickness of the first key body, and the thickness of the second key body is 20-30 mm.
Furthermore, the thickness of the second key body is 0.8-0.9 times of the thickness of the first key body, and the thickness of the second key body is 25 mm.
Furthermore, a plurality of first connecting holes are formed in the upper end face and the lower end face of the driving sleeve and the first key body, and a plurality of second connecting holes matched with the first connecting holes are formed in the upper pressing plate and the lower pressing plate.
Further, the projections of the inner side edges of the upper pressure plate and the lower pressure plate in the radial direction of the driving sleeve do not exceed the inner side edge of the first key body.
Furthermore, three driving keys are arranged on the inner side wall of the driving sleeve and are uniformly arranged at intervals in the circumferential direction of the driving sleeve; and a gap of 2.5-3.5 mm is formed between the inner side wall of the driving key and the drill rod in the radial direction.
Further, the hardness of the driving key is smaller than that of the drill rod.
The invention also provides a power head of the rotary drilling rig, which comprises a mast, a sliding lug, a sliding frame, a guardrail, a reduction box body, a power head driving key sleeve device, an oil filling port and a pressurizing seat, wherein the sliding lug can slide along a guide rail of the mast, the sliding frame is fixedly connected with the sliding lug, two ends of the guardrail are respectively fixedly connected with the sliding frame, the reduction box body is connected with the sliding frame through a connecting pin shaft, the reduction box body is connected with the output end of a speed reducer through a speed reducer spline interface, the power head driving key sleeve is used for being matched with a drill rod, the oil filling port is used for adding lubricating oil, and the pressurizing seat is connected with a pressurizing oil cylinder of the rotary drilling rig.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the power head driving key sleeve device, the upper pressing plate and the lower pressing plate are arranged at the two ends of the driving sleeve to fix the driving key bar, so that the replacement and maintenance of the power head driving key bar are facilitated, the problem that the power head driving key bar of the rotary drilling rig is difficult to disassemble and assemble after sale is solved, and the equipment construction is guaranteed;
(2) the power head driving key sleeve device adopts a brand-new dovetail type key strip driving mode that the key strip in the power head pressurizes and rotationally drives the mechanical lock drill rod, is completely different from the traditional bolt linking method, further improves the high efficiency and stability of product construction, and can create more profits for customers better.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a preferred embodiment of a power head of a rotary drilling rig according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the power head of the rotary drilling rig of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the longitudinal section (part of) of the driving sleeve, the upper pressing plate and the lower pressing plate of the key sleeve device for driving the power head according to the present invention;
FIG. 4 is a schematic top view of the powerhead drive key sleeve arrangement of the present invention;
FIG. 5 is a schematic diagram of the power head drive key sleeve arrangement of FIG. 4 with the upper pressure plate removed;
the device comprises a driving sleeve 1, a driving sleeve 1.1, a mounting groove 2, a driving key 2.1, a first key body 2.2, a second key body 3, an upper pressing plate 4, a lower pressing plate 5, a bolt a, a first connecting hole B, a second connecting hole B, a mast A, a sliding lug B, a sliding frame C, a guardrail D, an E-speed reduction box body, an F-power head driving key sleeve device, a G-oil filling port, an H-pressurizing seat, an I-speed reducer spline interface and a J-connecting pin shaft.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 to 5, the present embodiment provides a power head driving key sleeve device, which includes a driving sleeve 1 and a driving key 2 for cooperating with a drill rod, wherein a plurality of mounting grooves 1.1 extending along an axial direction of the driving sleeve are disposed on an inner side wall of the driving sleeve 1, and the mounting grooves are uniformly spaced in a circumferential direction of the driving sleeve. Preferably, 3 mounting grooves are formed in the inner side wall of the driving sleeve, and a driving key 2 is arranged in each mounting groove. The driving key comprises a first key body 2.1 inserted in the mounting groove and a second key body 2.2 protruding out of the inner side wall of the driving sleeve 1, the first key body and the second key body are arranged coaxially with the driving sleeve, and the first key body and the second key body form an integral arc-shaped structure coaxially arranged with the driving sleeve. Each driving key is fixedly connected with the driving sleeve 1 through an upper pressing plate 3 and a lower pressing plate 4 corresponding to the driving key. The structure is characterized in that the upper pressing plate and the lower pressing plate are arranged at the two ends of the driving sleeve to fix the driving key bar, so that the driving key bar is convenient to replace and maintain, the problem that the driving key bar of the power head of the rotary drilling rig is difficult to disassemble and assemble after sale is solved, and equipment construction is guaranteed.
In a preferred embodiment of the present invention, the mounting groove is a dovetail groove, the first key body is a dovetail key body adapted to the dovetail groove, and the first key body is disposed in the dovetail groove with a gap therebetween. In practical application, the height of the dovetail type driving sleeve is large or small according to the size of equipment, if the dovetail type driving sleeve with large height is difficult to process, the first key body and the second key body can be divided into two parts to be processed, and then the first key body and the second key body 2.2 are permanently fixed into the size required by design in a bolt or welding mode. Of course, the first key body 2.1 and the second key body 2.2 may be provided as an integral part if the machining allows. In the structural arrangement, the driving key and the driving sleeve are in clearance fit by adopting a dovetail-shaped mounting groove, namely, the first key body can slide in the mounting groove, so that the mounting of the driving key is convenient, materials need to be modulated in the processing and manufacturing process, and the hardness of the driving key 2 is less than that of the drill rod; preferably, the hardness of the driving key is HRC48, and the hardness of the drill rod is HRC 55.
In a preferred embodiment of the present invention, the thickness of the second key body is 0.6 to 1 times of the thickness of the first key body, and the thickness of the second key body 2.2 is 20 to 30 mm. Preferably, the thickness of the second key body is 0.8 to 0.9 times of the thickness of the first key body, and the thickness of the second key body 2.2 is 25 mm. In the structural arrangement, the lower surface of the second key body 2.2 is used for pressurizing a drill rod pressurizing table of the rotary drilling rig, and two vertical side surfaces of the second key body are used for driving the drill rod of the rotary drilling rig to rotate forwards and reversely. The driving sleeve, the driving key and the drill rod are arranged in gaps of 2.5-3.5 mm on one side in the outer diameter direction, and gaps of 3mm on one side in the preferred outer diameter direction are arranged, so that the drill rod can pass through the driving key sleeve without resistance.
In a preferred embodiment of the present invention, the driving sleeve and the first key body are provided with a plurality of first connection holes a on the upper and lower end surfaces, and the upper pressing plate 3 and the lower pressing plate 4 are provided with a plurality of second connection holes b adapted to the first connection holes a; wherein, first connecting hole is the screw hole. The driving key sleeve device is used for driving and pressurizing the rotary cutting soil of a drill rod and a drill bucket of the rotary drilling rig, the mounting mode of the driving key sleeve device is different from that of a common driving key sleeve, the driving key sleeve is assembled from top to bottom from a driving sleeve port, a lower pressing plate 4 is fixed with the driving sleeve through a bolt before assembly, and then the driving key is inserted into a mounting groove so as to prevent the dovetail-shaped driving key from sliding out of the bottom of the driving sleeve; after the driving key is installed, the upper pressing plate 3 and the lower pressing plate 4 are respectively and fixedly connected with the driving key and the driving sleeve by using a bolt 5 and a gasket. The upper pressing plate and the lower pressing plate are used for axially fixing the driving key, and meanwhile the pre-tightening force of the upper pressing plate and the lower pressing plate can meet the axial pressurizing force of the rotary drilling rig. When the bolt and the gasket are fastened, the bolt and the gasket need to reach the pre-tightening force specified by a mechanical design manual so as to prevent the bolt from falling off. When the driving key is replaced, the disassembly process is opposite to the installation process.
In the preferred embodiment of the present invention, the projections of the inner side edges of the upper and lower pressing plates 3 and 4 in the radial direction of the driving sleeve do not exceed the inner side edge of the first key body 2.1. The structure is reasonable in arrangement, and the interference between the upper pressing plate and the lower pressing plate and the drill rod can be effectively avoided.
With reference to fig. 1, an embodiment of the present invention further provides a power head of a rotary drilling rig, including a mast a, a sliding lug B, a sliding frame C, a guardrail D, a reduction box E, the power head driving key sleeve device F, an oil filler G and a pressurizing seat H, wherein the sliding lug can slide along a guide rail of the mast, the sliding frame is fixedly connected with the sliding lug, two ends of the guardrail are respectively fixedly connected with the sliding frame, the reduction box is connected with the sliding frame through a linking pin J, and the reduction box is connected with an output end of a reducer through a reducer spline interface I; the power head driving key sleeve is used for being matched with a drill rod, the oil filling port is used for adding lubricating oil, and the pressurizing seat is connected with a pressurizing oil cylinder of the rotary drilling rig. The sliding lug can slide along a guide rail of a mast of the rotary drilling rig under the action of a pressurizing oil cylinder or a winch of the rotary drilling rig, and can provide pressurizing force for a drill rod pressurizing table of the rotary drilling rig while sliding downwards; the sliding frame and the sliding lug are connected into a whole through a bolt and are used for connecting the power head box body and a mast of the rotary drilling rig; the guardrail is used for further protecting parts such as the power head speed reducer, the motor and the like from collision; the reduction box body is used for reducing the rotation speed of the power head driving key sleeve and increasing the rotation torque; the driving key sleeve is a core part of the invention and is used for driving and pressurizing the rotary cutting soil of the drill rod and the drilling bucket of the rotary drilling rig, and the oil filling port is used for lubricating, cleaning and cooling the engagement of gears in the power head by adding lubricating oil; the pressurizing seat is connected with a pressurizing oil cylinder of the rotary drilling rig to transmit pressurizing and pulling force to the power head; the speed reducer spline interface is connected with the output end of the speed reducer and transmits rotary power and speed to the power head; the link pin shaft is used for connecting a sliding frame and a reduction box body of the power head.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The power head driving key sleeve device is characterized by comprising a driving sleeve (1) and a driving key (2) matched with a drill rod, wherein a plurality of mounting grooves (1.1) extending along the axial direction of the driving sleeve are formed in the inner side wall of the driving sleeve (1), one driving key (2) is arranged in each mounting groove, each driving key comprises a first key body (2.1) inserted in each mounting groove and a second key body (2.2) protruding out of the inner side wall of the driving sleeve (1), the first key body and the second key body are coaxially arranged with the driving sleeve, and each driving key is fixedly connected with the driving sleeve (1) through an upper pressing plate (3) and a lower pressing plate (4) corresponding to the driving key body.
2. The power head driving key sleeve device according to claim 1, wherein the mounting groove (1.1) is a dovetail groove, the first key body (2.1) is a dovetail-shaped key body matched with the dovetail groove, and the first key body (2.1) is arranged in the dovetail groove in a clearance mode.
3. The powerhead drive key sleeve device according to claim 1, wherein the first key body (2.1) and the second key body (2.2) are arranged separately, and the first key body (2.1) and the second key body (2.2) are fixedly connected through a connecting piece; or the first key body (2.1) and the second key body (2.2) are integrally formed.
4. The powerhead drive key sleeve device according to claim 3, wherein the thickness of the second key body (2.2) is 0.6-1 times the thickness of the first key body (2.1), and the thickness of the second key body (2.2) is 20-30 mm.
5. The powerhead drive keymat device of claim 4, wherein the thickness of the second key body (2.2) is 0.8-0.9 times the thickness of the first key body (2.1), and the thickness of the second key body (2.2) is 25 mm.
6. The power head driving key sleeve device according to claim 1, wherein a plurality of first connecting holes (a) are formed in the upper and lower end faces of the driving sleeve (1) and the first key body (2.1), and a plurality of second connecting holes (b) matched with the first connecting holes (a) are formed in the upper pressure plate (3) and the lower pressure plate (4).
7. The powerhead drive key sleeve arrangement according to claim 6, wherein the projections of the inner side edges of the upper pressure plate (3) and the lower pressure plate (4) in the radial direction of the drive sleeve do not exceed the inner side edge of the first key body (2.1).
8. The power head driving key sleeve device according to claim 1, wherein three driving keys (2) are arranged on the inner side wall of the driving sleeve (1), and are uniformly arranged at intervals in the circumferential direction of the driving sleeve; and a gap of 2.5-3.5 mm is formed between the inner side wall of the driving key and the drill rod in the radial direction.
9. The powerhead drive key sleeve arrangement according to claim 1, wherein the hardness of the drive key (2) is less than the hardness of the drill rod.
10. A rotary drilling rig power head is characterized by comprising a mast (A), a sliding lug (B), a sliding frame (C), a guardrail (D), a speed reducing box body (E), the power head driving key sleeve device (F) as claimed in any one of claims 1 to 9, an oil filling port (G) and a pressurizing seat (H), wherein the sliding lug can slide along a guide rail of the mast, the sliding frame is fixedly connected with the sliding lug, two ends of the guardrail are respectively fixedly connected with the sliding frame, the speed reducing box body is connected with the sliding frame through a linking pin shaft (J), the speed reducing box body is connected with an output end of a speed reducer through a speed reducer spline interface (I), the power head driving key sleeve is used for being matched with a drill rod, the oil filling port is used for adding lubricating oil, and the pressurizing seat is connected with a pressurizing oil cylinder of the rotary drilling rig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210013346.XA CN114320179A (en) | 2022-01-06 | 2022-01-06 | Power head driving key sleeve device and rotary drilling rig power head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210013346.XA CN114320179A (en) | 2022-01-06 | 2022-01-06 | Power head driving key sleeve device and rotary drilling rig power head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114320179A true CN114320179A (en) | 2022-04-12 |
Family
ID=81025274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210013346.XA Pending CN114320179A (en) | 2022-01-06 | 2022-01-06 | Power head driving key sleeve device and rotary drilling rig power head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114320179A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114806A (en) * | 2013-02-06 | 2013-05-22 | 上海中联重科桩工机械有限公司 | Rotary drilling rig |
| CN203201490U (en) * | 2013-04-26 | 2013-09-18 | 厦门厦工机械股份有限公司 | Improved rotary rolling rig power head drive sleeve |
| CN103924916A (en) * | 2014-04-25 | 2014-07-16 | 山河智能装备股份有限公司 | Drilling machine combined type driving sleeve with movable key reliable to fix |
| US20160102498A1 (en) * | 2014-10-09 | 2016-04-14 | Sandvik Mining And Construction Oy | Rotation unit, rock drilling unit and method for rock drilling |
| CN214118779U (en) * | 2020-10-05 | 2021-09-03 | 湖南伏尔加桩工机械设备有限公司 | Dovetail groove installation type wear-resistant key bar of power head of rotary drilling rig |
-
2022
- 2022-01-06 CN CN202210013346.XA patent/CN114320179A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114806A (en) * | 2013-02-06 | 2013-05-22 | 上海中联重科桩工机械有限公司 | Rotary drilling rig |
| CN203201490U (en) * | 2013-04-26 | 2013-09-18 | 厦门厦工机械股份有限公司 | Improved rotary rolling rig power head drive sleeve |
| CN103924916A (en) * | 2014-04-25 | 2014-07-16 | 山河智能装备股份有限公司 | Drilling machine combined type driving sleeve with movable key reliable to fix |
| US20160102498A1 (en) * | 2014-10-09 | 2016-04-14 | Sandvik Mining And Construction Oy | Rotation unit, rock drilling unit and method for rock drilling |
| CN214118779U (en) * | 2020-10-05 | 2021-09-03 | 湖南伏尔加桩工机械设备有限公司 | Dovetail groove installation type wear-resistant key bar of power head of rotary drilling rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10100593B2 (en) | Power tong unit | |
| CN201567950U (en) | Auger drill power head capable of being provided with various specifications and types of drill rods | |
| CN108326539B (en) | Screw drill auxiliary dismounting device for petroleum and natural gas exploitation | |
| US20090159271A1 (en) | Top drive systems for wellbore & drilling operations | |
| CN203201490U (en) | Improved rotary rolling rig power head drive sleeve | |
| CN114320179A (en) | Power head driving key sleeve device and rotary drilling rig power head | |
| CN207728310U (en) | A kind of underwater drill power head device that punching press is combined with revolution | |
| CN204738744U (en) | Top -drive | |
| CN210768787U (en) | Cutter head driving assembly of push bench | |
| CA1138420A (en) | Raise drill apparatus | |
| CN211726027U (en) | A kind of breaker | |
| CN212469990U (en) | Movable steel rail shearing machine | |
| CN210255954U (en) | Rack mounting or dismounting device on single-cylinder hydraulic cone crusher | |
| CN209811676U (en) | Machine tool power box with installation positioning device | |
| CN202415442U (en) | Top driving mechanism for drill rod | |
| CN220551058U (en) | Non-excavation top-pulling drill device capable of being conveniently assembled and disassembled on site | |
| CN103195373B (en) | The dismountable combined drive key of a kind of rotary digging drill power head | |
| CN206175620U (en) | Novel two transformation ratio gear change casees of net electrical drilling machine device | |
| CN218971105U (en) | Driving sleeve for power head of rotary drilling rig | |
| CN216343717U (en) | Marine gear box convenient to maintain | |
| CN103924916A (en) | Drilling machine combined type driving sleeve with movable key reliable to fix | |
| CN211472661U (en) | Milling and digging head structure | |
| CN108237709B (en) | Equal-wall-thickness screw drill stator rubber sleeve removing equipment for oil and gas exploitation | |
| CN212154674U (en) | Drilling mechanism | |
| CN214463945U (en) | Corrosion-resistant beam-pumping unit polished rod of ternary composite well |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |