CN112340631A - Crown block device with split-type main pulley - Google Patents
Crown block device with split-type main pulley Download PDFInfo
- Publication number
- CN112340631A CN112340631A CN201910728077.3A CN201910728077A CN112340631A CN 112340631 A CN112340631 A CN 112340631A CN 201910728077 A CN201910728077 A CN 201910728077A CN 112340631 A CN112340631 A CN 112340631A
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- CN
- China
- Prior art keywords
- pulley
- guide wheel
- crown block
- main
- pulleys
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
- B66D3/08—Arrangements of sheaves
Abstract
A crown block device with a split main pulley belongs to the field of petroleum drilling mechanical equipment and overcomes the defect that a crown block in the prior art is not suitable for being combined with a single-pulley type traveling block with a large pulley space to form a traveling system. The structure of the device comprises a crown block beam, a main pulley, a middle guide wheel, a front guide pulley, a rear guide pulley and a herringbone frame; the crown block beam is of a frame structure and is connected through bolts; the main pulleys are split pulleys, are fixed through pulley supports, are 6 in number and are arranged on the overhead travelling crane beam; the center parts of the main pulleys are provided with 1 middle guide wheel to separate the middle parts of the traveling block into spaces; a front guide wheel and a rear guide wheel are arranged on the same side of the main pulley, so that the rope outlet requirements of a double-drum winch or a dead rope fixer and a winch which are arranged on the same side are met; the herringbone frame is positioned above the crown block beam. The invention is combined with a single-pulley type traveling block, can realize the quick change of the rope system without reeving, can improve the working efficiency of the traveling system and improve the operation mode of the lifting system.
Description
Technical Field
The invention belongs to the field of petroleum drilling mechanical equipment, and particularly relates to a crown block device for a petroleum drilling machine.
Background
The crown block for the petroleum drilling machine is a fixed pulley block arranged on the top of a derrick, and a movable fixed pulley traveling system is formed by a steel wire rope and a traveling block and is used for bearing a hook load and the tension of a dead rope and a fast rope to complete various drilling operations. A main pulley block of a crown block in the prior art adopts an integral mode, a plurality of pulleys are fixed through a shaft, the distance between the pulleys is small, and the crown block is suitable for being combined with a traditional integral type traveling block to form a traveling system; because the distance between the pulleys is small, the single-pulley type traveling block is not suitable for being combined with a traveling system with large pulley distance.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a practical crown block device with a split-type main pulley.
The technical scheme adopted by the invention is as follows: a crown block device with a split-type main pulley comprises a crown block beam 1, a main pulley 2, a middle guide wheel 3, a front guide pulley 4, a rear guide pulley 5 and a propeller strut 6; the overhead travelling crane beam 1 is of a frame structure and is connected through bolts; the main pulleys 2 are split pulleys, are fixed by pulley supports, are 6 in number, can be increased or decreased in pairs according to production requirements, and are arranged on the crown block beam 1; the center parts of the main pulleys 2 are provided with 1 middle guide wheel 3 to separate the middle part of the traveling block into spaces; a front guide wheel 4 and a rear guide wheel 5 are arranged on the same side of the main pulley 2, the number of the front guide wheels 4 is 2, the number of the rear guide wheels 5 is 1, and the steel wire rope is guided to the same side of the crown block by the front guide wheel 4 and the rear guide wheel 5, so that the rope outlet requirements of a double-drum winch arranged on the same side or a dead rope fixer and a winch arranged on the same side are met; the herringbone bracket 6 is positioned above the crown block beam 1.
When the invention is used, the invention and the single-pulley type traveling block 7 form a traveling system.
The invention has the beneficial effects that:
1. the invention has reasonable structural design, the main pulley is separately installed and is suitable for being combined with a single-pulley type traveling block to form a traveling system;
2. the main pulleys are installed in a split mode, so that the space is large, the assembly, disassembly and maintenance are convenient, the main pulleys can be maintained one by one, and the operation is convenient.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the structural schematic of the present invention;
FIG. 3 is a top view of a structural schematic of the present invention;
FIG. 4 is a right side view of the structural schematic of the present invention;
fig. 5 is a schematic view of a swimming system of the present invention and a single-pulley type swimming vehicle.
In the figure: 1 crown block beam, 2 main pulleys, 3 middle guide wheels, 4 front guide wheels, 5 rear guide wheels, 6A-bracket and 7 single-pulley type traveling block.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, a crown block device with a split-type main pulley comprises a crown block beam 1, a main pulley 2, a middle guide wheel 3, a front guide pulley 4, a rear guide pulley 5 and a herringbone bracket 6; the overhead travelling crane beam is of a frame structure and is connected through bolts; the main pulleys 2 are split pulleys, are fixed by pulley supports, are 6 in number, can be increased or decreased in pairs according to production requirements, and are arranged on the crown block beam 1; the center parts of the main pulleys 2 are provided with 1 middle guide wheel 3 which mainly has the function of separating the middle part of the traveling block into spaces; a front guide wheel 4 and a rear guide wheel 5 are arranged on the same side of the main pulley 2, the number of the front guide wheels 4 is 2, the number of the rear guide wheels 5 is 1, and the steel wire rope is guided to the same side of the crown block by the front guide wheel 4 and the rear guide wheel 5, so that the rope outlet requirements of a double-drum winch arranged on the same side or a dead rope fixer and a winch arranged on the same side are met; the propeller strut 6 is positioned above the crown block beam 1, so that the hoisting maintenance work of the crown block pulley can be completed conveniently.
When the invention is used, as shown in figure 5, the invention and the single-pulley type traveling block 7 form a traveling system, and the main pulley is installed separately, so the space is large, and the installation, the disassembly and the maintenance are convenient.
The invention is combined with another single-pulley type traveling block of the petroleum drilling machine which has already been reported in the drilling process to form an applicable traveling system, the rapid change of the rope system can be realized without reeving the rope, the working efficiency of the traveling system can be improved, and the operation mode of the lifting system is improved.
Claims (2)
1. Overhead traveling crane device of main pulley components of a whole that can function independently installation, its characterized in that: the structure comprises a crown block beam, a main pulley, a middle guide wheel, a front guide pulley, a rear guide pulley and a herringbone frame; the crown block beam is characterized in that the crown block beam is in a frame structure and connected through bolts; the main pulleys are split type pulleys, are fixed through pulley supports, are 6 in number, can be increased or decreased in pairs according to production requirements, and are mounted on the crown block beam; the number of the middle guide wheels is 1, and the middle guide wheels are arranged in the central parts of the main pulleys and the second pulleys so as to separate the space in the middle of the traveling block; a front guide wheel, a rear guide wheel, 2 front guide wheels, 1 rear guide wheel, a front guide wheel and a rear guide wheel are arranged on the same side of the main pulley, the front guide wheel and the rear guide wheel lead the steel wire rope to the same side of the crown block, and rope outgoing requirements of a double-drum winch arranged on the same side or a dead rope fixer and a winch arranged on the same side are met; the herringbone frame sixteenth is located above the crown block beam.
2. The overhead traveling crane apparatus of claim 1, wherein the main sheave is installed separately, and wherein: when the combined type swimming pool is used, the combined type swimming pool and single-pulley type touring car combination form a swimming system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728077.3A CN112340631A (en) | 2019-08-08 | 2019-08-08 | Crown block device with split-type main pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910728077.3A CN112340631A (en) | 2019-08-08 | 2019-08-08 | Crown block device with split-type main pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112340631A true CN112340631A (en) | 2021-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910728077.3A Pending CN112340631A (en) | 2019-08-08 | 2019-08-08 | Crown block device with split-type main pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112340631A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB377288A (en) * | 1931-04-24 | 1932-07-25 | Minor Burt S | Crown blocks for well derricks |
| US3940112A (en) * | 1973-11-29 | 1976-02-24 | Santa Fe International Corporation | Crown block |
| CN102712451A (en) * | 2010-02-26 | 2012-10-03 | 韩国高培株式会社 | Hoist using friction wheel |
| CN202687851U (en) * | 2012-05-31 | 2013-01-23 | 中国石油化工集团公司 | Novel split crown block |
| CN204096985U (en) * | 2014-09-02 | 2015-01-14 | 珠海三一港口机械有限公司 | Hoisting crane and steel rope state monitoring apparatus thereof |
| CN206606955U (en) * | 2017-03-15 | 2017-11-03 | 兰州兰石集团有限公司 | Ultradeep well oil-well rig overhead traveling crane |
| CN211255088U (en) * | 2019-08-08 | 2020-08-14 | 兰州兰石能源装备工程研究院有限公司 | Crown block device with split-type main pulley |
-
2019
- 2019-08-08 CN CN201910728077.3A patent/CN112340631A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB377288A (en) * | 1931-04-24 | 1932-07-25 | Minor Burt S | Crown blocks for well derricks |
| US3940112A (en) * | 1973-11-29 | 1976-02-24 | Santa Fe International Corporation | Crown block |
| CN102712451A (en) * | 2010-02-26 | 2012-10-03 | 韩国高培株式会社 | Hoist using friction wheel |
| CN202687851U (en) * | 2012-05-31 | 2013-01-23 | 中国石油化工集团公司 | Novel split crown block |
| CN204096985U (en) * | 2014-09-02 | 2015-01-14 | 珠海三一港口机械有限公司 | Hoisting crane and steel rope state monitoring apparatus thereof |
| CN206606955U (en) * | 2017-03-15 | 2017-11-03 | 兰州兰石集团有限公司 | Ultradeep well oil-well rig overhead traveling crane |
| CN211255088U (en) * | 2019-08-08 | 2020-08-14 | 兰州兰石能源装备工程研究院有限公司 | Crown block device with split-type main pulley |
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