CN106429903A - Extension device - Google Patents
Extension device Download PDFInfo
- Publication number
- CN106429903A CN106429903A CN201610879469.6A CN201610879469A CN106429903A CN 106429903 A CN106429903 A CN 106429903A CN 201610879469 A CN201610879469 A CN 201610879469A CN 106429903 A CN106429903 A CN 106429903A
- Authority
- CN
- China
- Prior art keywords
- arm
- tourelle
- rolling
- telescopic arm
- telescopic
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
- B66C23/703—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by flexible elements, e.g. cables, chains or bands
Abstract
The invention relates to the field of petroleum engineering equipment, in particular to an extension device. The extension device comprises a first arm, a second arm, a third arm, at least one first rolling device, a second rolling device and a third rolling device; at least one first rolling device is connected with the first arm by a certain gap; the second rolling device is connected with the second arm; and the third rolling device is connected with the third arm. The extension device is convenient for extension operation, improves the stress condition, prevents blockage, prevents accidents, and achieves the purposes of cost reduction and efficiency improvement.
Description
Technical field
The present invention relates to petroleum works apparatus field is and in particular to a kind of retractor device.
Background technology
In petroleum machinery equipment, rope hoisting system usage frequency is very high, but under environment compares harsh conditions, especially
It is in offshore oil machinery equipment, or in the case of needing suspension centre to be accurately positioned, simply using steel wire rope can not expire completely
Sufficient use requirement, is at this moment accomplished by accurate guider, and telescopic arm is simple with its structure, convenient operation and control, maintenance cost
Low feature is widely used.For the long structure of steel wire rope stroke, a section telescopic arm is often difficult to meet require, needs
Multistage telescopic arm.
At present, steel wire rope combines the structure of telescopic arm, mainly has fluid cylinder to drive and winch drives two types, for close
In the telescopic arm structure of level, fluid cylinder driving is more, and for vertical telescopic arm structure, winch drives more；Fluid cylinder stretches and ties
Structure can ensure the flexible of multistage telescopic arm by setting fluid cylinder in often section telescopic arm, however it is necessary that the related hydraulic line of arrangement
And device, complex structure, higher for space requirement, Long travel fluid cylinder is relatively costly in addition, is not suitable for the telescopic arm of Long travel；
Winch drives steel wire rope not limited by telescopic arm haul distance, and structure is simple, but is difficult to control to multistage telescopic arm and extends and retracts
Order, therefore be generally used for vertical telescopic arm, by action of gravity and mechanical position limitation realize multistage telescopic arm stretch out and
Retract.
Slider support is mostly adopted, the surface roughness requirements of rubbing surface are relatively between the telescopic arm that steel wire rope extends and retracts
Height, the frictional force between arm is larger；On arm centerline direction, if there are larger external force, slide between arm and arm
Difficult；For vertical telescopic arm structure, the deadweight of the flexible order dependent arm between arm, in the presence of having relatively larger transverse power,
Friction between arm and arm can increase, when cross force is sufficiently large, leads to gravity deficiency to overcome frictional force between arm and arm, arm
Stretching and arm between just cannot complete；If cross force is periodic, or change, such as stormy waves, waving of ship are brought
Cross force, then the frictional force between arm and arm is just unstable, it is possible that the uncontrolled decline of higher level's arm, Chong Za subordinate arm
Phenomenon.
For ensureing smoothly to stretch, need to control cross force it is ensured that the perpendicularity of telescopic arm arm at different levels, lift the steel of telescopic arm
Cord arrangement is full symmetric, there is not bias, it is to avoid unnecessary cross force in telescopic arm lifting process, and the surface of telescopic arm will
Smooth enough, and ensure the form tolerance of telescopic arm.
Limit telescopic arm cross force and limit this kind of structure range, in the presence of a harsh environment, need to stop operation.
Rope hoisting structural requirement is arranged symmetrically, and telescopic arm structure is arranged symmetrically, and increased design difficulty, for structure
With the situation of limited space, especially inapplicable.
Ensure telescopic arm form and position tolerance and surface roughness, increased manufacture difficulty, particularly with the telescopic arm of Long travel
Structure, relatively costly.
Content of the invention
In view of this it is necessary to provide a kind of convenient retractor device.
A kind of retractor device, including
First arm；
Second arm；
It is characterized in that：Also include
At least one first tourelle；
At least one first tourelle described is connected with described first arm；
Described second arm is connected with least one first tourelle described.
Described retractor device it is characterised in that：
Also include
3rd arm；
Second tourelle；
Described second tourelle is connected with described second arm；
Described second tourelle is connected with described 3rd arm；
3rd tourelle；
Described 3rd tourelle is connected with described 3rd arm.
Described first tourelle includes
4 rolling mechanisms.
Described second tourelle includes
6 rolling mechanisms.
Described 3rd tourelle includes
4 rolling mechanisms.
Due to employing technique scheme, the invention has the beneficial effects as follows：
Using rolling structure, can effectively reduce the friction between telescopic arms at different levels, it is to avoid telescopic arm jam, it is to avoid accident, reach
Raising efficiency, the purpose of reduces cost are arrived.
Brief description
Fig. 1 is the schematic diagram of the present invention.
Fig. 2 is the A-A sectional view of the present invention.
Fig. 3 is the B-B sectional view of the present invention.
Fig. 4 is the C-C sectional view of the present invention.
Fig. 5 is rolling mechanism 101 schematic diagram of the present invention.
Fig. 6 is rolling mechanism 102 schematic diagram of the present invention.
Fig. 7 is rolling mechanism 31 schematic diagram of the present invention.
Fig. 8 is rolling mechanism 81 schematic diagram of the present invention.
Fig. 9 is rolling mechanism 81 front view of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is described further.It should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not used to limit
Determine the present invention.
Embodiment
A kind of retractor device as shown in figs 1-9, including the first arm 13, the second arm 1, two the first tourelles 10, two
First tourelle 10 is fixedly connected at a distance with the first arm 13, and the second arm 1 is connected with two the first tourelles 10.
A kind of retractor device, also includes the 3rd arm, the second tourelle 8, the 3rd tourelle 3, the second arm 1 and the second rolling
Dynamic device 8 is fixedly connected, and the 3rd tourelle 3 is fixedly connected with the 3rd arm, and the 3rd arm is connected with the second tourelle 8.
First tourelle 10 includes 2 rolling mechanisms 101 and 2 rolling mechanisms 102, and the second tourelle 8 includes 6
Rolling mechanism 81, the 3rd tourelle 3 includes 4 rolling mechanisms 31.
Rolling mechanism 81 includes axle 817, is installed on the sliding bearing 818 on axle 817, is installed on sliding bearing 818
Roller 811, is respectively arranged in the end plate 812 at roller 811 two ends, is installed on the clamp 813 of one end of end plate 812, with bolt or
Clamp 813 locked by screw 814；Rolling mechanism 81 is arranged on pedestal 816, is consolidated with bolt 815 or screw 815 or welding manner
It is scheduled on the second arm 1.
Rolling mechanism 31 includes axle 317, is installed on the sliding bearing 318 on axle 317, is installed on sliding bearing 318
Roller 311, is respectively arranged in the end plate 312 at roller 311 two ends, is installed on the clamp 313 of one end of end plate 312, with bolt or
Clamp 313 locked by screw 314；Rolling mechanism 31 is arranged on pedestal 316, is consolidated with bolt 315 or screw 315 or welding manner
It is scheduled on the 3rd arm 2.
Rolling mechanism 101 includes axle 1017, is installed on the sliding bearing 1018 on axle 1017, is installed on sliding bearing 1018
On roller 1011, be respectively arranged in the end plate 1012 at roller 1011 two ends, be installed on the clamp 1013 of end plate 1012 one end, use
Bolt or screw 1014 locking clamp 1013；Rolling mechanism 101 is arranged on pedestal 1016, with bolt 1015 or screw 1015
Or welding manner is fixed on the first arm 13.
Rolling mechanism 102 includes axle 1027, is installed on the sliding bearing 1028 on axle 1027, is installed on sliding bearing 1028
On roller 1021, be respectively arranged in the end plate 1022 at roller 1021 two ends, be installed on the clamp 1023 of end plate 1022 one end, peace
It is loaded on the dividing plate 1030 between roller 1021, is installed on the top board 1029 between dividing plate 1030, locked with bolt or screw 1024
Clamp 1023；Rolling mechanism 102 is arranged on pedestal 1026, is fixed on bolt 1025 or screw 1025 or welding manner
On one arm 13.
A kind of retractor device, also includes the 3rd stopping means 7, the 3rd stopping means 7 are fixedly connected with the 3rd arm 2, are used for
Limit the stroke of the 3rd arm 2, prevent the 3rd arm 2 from deviating from.
A kind of retractor device, also includes the second stopping means 9, and the second stopping means 9 are fixedly connected with the second arm 1, are used for
Limit the stroke of the second arm 1, prevent the up abjection of the second arm 1.
A kind of retractor device, also includes the first stopping means 14, and the first stopping means 14 are fixedly connected with the first arm 13, uses
To limit the stroke of the second arm 1, to prevent the descending abjection of the second arm 1.
First arm 13 is fixed on bearing 5.
The steel wire rope 11 extending from winch 4 bypasses the pulley 6 being connected with the 3rd arm 2, is connected on fastener of dead-line 12.
In telescopic arm decentralization process, winch 4 rotates decentralization steel wire rope 11, under gravity, the second arm 1 and the 3rd arm
3 decline together, and the second arm 1 reaches the first stopping means 14 position, and the weight of the second arm 1 is born by the first stopping means 14, make
On bearing 5, the 3rd arm 3 continues to drop to specified location；In telescopic arm uphill process, winch 4 opposite direction rotates winding
Steel wire rope 11, the 3rd arm 3 rises under the drive of steel wire rope 11, after the 3rd stopping means 7 touch the second arm 1, drives second
Arm 1 runs up, and runs after contacting to the second stopping means 9 with the first arm 13, stops rising.Whole telescopic arm rise and under
During fall, stroke limit superior point and limit inferior point can be arranged by winch.
In telescopic arm running, the second arm 1, the 3rd arm 3 disalignment, then because the first tourelle 10 and the
Two arm 1 outer surface contacts, and the second tourelle 8 contacted with the 3rd arm 3 outer surface, the 3rd tourelle 3 and the second arm 1 inner surface
Contact, because rolling friction is less than gravity, it is to avoid jam.
Due to employing technique scheme, the invention has the beneficial effects as follows：
Using rolling structure, can effectively reduce the friction between telescopic arms at different levels, it is to avoid telescopic arm jam, it is to avoid accident,
Raising efficiency, the purpose of reduces cost are reached.
In a word, the foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within any modification, equivalent and improvement of being made etc., should be included in protection scope of the present invention it
Interior.
Claims (5)
1. a kind of retractor device, including
First arm；
Second arm；
It is characterized in that：Also include
At least one first tourelle；
At least one first tourelle described is connected with described first arm；
Described second arm is connected with least one first tourelle described.
2. retractor device according to claim 1 it is characterised in that：
Also include
3rd arm；
Second tourelle；
Described second tourelle is connected with described second arm；
Described second tourelle is connected with described 3rd arm；
3rd tourelle；
Described 3rd tourelle is connected with described 3rd arm.
3. retractor device according to claim 1 and 2 it is characterised in that：
Described first tourelle includes
4 rolling mechanisms.
4. retractor device according to claim 1 and 2 it is characterised in that：
Described second tourelle includes
6 rolling mechanisms.
5. retractor device according to claim 1 and 2 it is characterised in that：
Described 3rd tourelle includes
4 rolling mechanisms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879469.6A CN106429903A (en) | 2016-10-09 | 2016-10-09 | Extension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610879469.6A CN106429903A (en) | 2016-10-09 | 2016-10-09 | Extension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106429903A true CN106429903A (en) | 2017-02-22 |
Family
ID=58171997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610879469.6A Pending CN106429903A (en) | 2016-10-09 | 2016-10-09 | Extension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106429903A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829760A (en) * | 2017-03-30 | 2017-06-13 | 中国铁建重工集团有限公司 | A kind of telescopic arm |
| CN110028011A (en) * | 2019-04-18 | 2019-07-19 | 四川宏华石油设备有限公司 | A kind of BOP board migration device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090015706A (en) * | 2007-08-09 | 2009-02-12 | 윤병태 | Inputshaping controller of crane |
| CN101934974A (en) * | 2010-05-07 | 2011-01-05 | 常州东方机电成套有限公司 | Bridge crane telescopic sleeve type rigid positioning device |
| CN102009913A (en) * | 2010-11-26 | 2011-04-13 | 大连华锐股份有限公司 | Crane hoisting mechanism with extension sleeve |
| CN202131033U (en) * | 2011-06-17 | 2012-02-01 | 常州常矿起重机械有限公司 | Telescopic mechanical arm of crane for accurate positioning |
| CN102381642A (en) * | 2011-11-29 | 2012-03-21 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
-
2016
- 2016-10-09 CN CN201610879469.6A patent/CN106429903A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090015706A (en) * | 2007-08-09 | 2009-02-12 | 윤병태 | Inputshaping controller of crane |
| CN101934974A (en) * | 2010-05-07 | 2011-01-05 | 常州东方机电成套有限公司 | Bridge crane telescopic sleeve type rigid positioning device |
| CN102009913A (en) * | 2010-11-26 | 2011-04-13 | 大连华锐股份有限公司 | Crane hoisting mechanism with extension sleeve |
| CN202131033U (en) * | 2011-06-17 | 2012-02-01 | 常州常矿起重机械有限公司 | Telescopic mechanical arm of crane for accurate positioning |
| CN102381642A (en) * | 2011-11-29 | 2012-03-21 | 徐州天地重型机械制造有限公司 | Synchronous telescopic device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106829760A (en) * | 2017-03-30 | 2017-06-13 | 中国铁建重工集团有限公司 | A kind of telescopic arm |
| CN110028011A (en) * | 2019-04-18 | 2019-07-19 | 四川宏华石油设备有限公司 | A kind of BOP board migration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170222 |
|
| WD01 | Invention patent application deemed withdrawn after publication |