CN204571870U - A kind of multi-armed centralizer - Google Patents
A kind of multi-armed centralizer Download PDFInfo
- Publication number
- CN204571870U CN204571870U CN201520078128.XU CN201520078128U CN204571870U CN 204571870 U CN204571870 U CN 204571870U CN 201520078128 U CN201520078128 U CN 201520078128U CN 204571870 U CN204571870 U CN 204571870U
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- slip
- centralizer
- fixed part
- external force
- spring plate
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Abstract
The utility model discloses a kind of multi-armed centralizer, this centralizer is provided with multiple cluster spring plate, cluster spring plate is separately positioned on multiple support arm and between this structure, add the extension spring that a section can promote elastic force, such structure can promote the elastic force of centralizer, make centralizer can when being subject to the external force strengthened suddenly, the effect of righting be played in the impact sustaining external force.The utility model can extend in time along with external force increases, the change of flexible reply external force, to cushion the impact of external force on centralizer, and extension spring can also slowly be retracted when external force reduces, pull cluster spring sheet reset, thus play the effect of righting, structure is simple, easy to operate, successful.
Description
Technical field
The utility model relates to field of petroleum machinery, particularly, relates to a kind of multi-armed centralizer.
Background technology
centralizer belongs to cementing tool, and it manufactures simple, and structure is attractive in appearance, firm and durable, and uprighting force is large, and overcoming the deficiency that sealing-off easily occurs former welded type centralizer, is a kind of centralizer that can ensure well drilling and cementing quality.Centralizer is of a great variety, can be divided into roller type, slide block type, automatic reverse formula etc. by structure.The centralizer of different structure and material, is applicable to the oil well of dissimilar eccentric wear.Use centralizer eccentric wear-proof process key technology be centralizer install position, spacing and quantity.
Existing centralizer, when being subject to the external force strengthened suddenly, cannot sustaining precipitate pressure, and cannot play the effect of righting, cause the effect of righting undesirable, cannot continue normal work.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of multi-armed centralizer, this centralizer is provided with multiple cluster spring plate, cluster spring plate is separately positioned on multiple support arm and between this structure, add the extension spring that a section can promote elastic force, such structure can promote the elastic force of centralizer, make centralizer can when being subject to the external force strengthened suddenly, the effect of righting be played in the impact sustaining external force.
The technical scheme in the invention for solving the above technical problem is:
A kind of multi-armed centralizer, comprise upper end, multiple support arm, multiple cluster spring plate, rear end and connect the connecting rod of upper end and rear end, described connecting rod comprises slip front end, the middle part a that slides holds, slide middle part b end, slip rear end, described upper end is connected with slip front end, and the junction of slip front end and upper end is also provided with front baffle ring;
Slip front end is connected with slip middle part a end, and the joint of slip front end and the middle part a end that slides is provided with fixed part c, and fixed part c can slide along slip front end and the middle part a end that slides; The middle part b end that slides is connected with slip rear end, and the joint of slide middle part b end and slip rear end is also provided with fixed part d, and fixed part d can slide along slip rear end and the middle part b end that slides; Multiple support arm is evenly arranged between fixed part c and fixed part d, and multiple described support arm is shaped form; Also extension spring is provided with between described slip middle part a end and the middle part b that slides hold, extension spring two ends are respectively arranged with slidable termination, multiple described cluster spring plate is arranged between termination, cluster spring plate comprises left spring plate and right latch plate, one end of left spring plate is connected with the termination being positioned at extension spring left end, the other end of left spring plate and one end hinge of right latch plate are on support arm, and the other end of right latch plate is connected with the termination of extension spring right-hand member.
Design of the present utility model with: multiple cluster spring plate can when external force increases suddenly along with the direction of corresponding multiple gripper shoes along connecting rod extends, and because the extension spring that connecting rod is arranged can keep out the impact that external force increases suddenly, can extend in time along with external force increases, the change of flexible reply external force, to cushion the impact of external force on centralizer, and extension spring can also slowly be retracted when external force reduces, pull cluster spring sheet reset, thus play the effect of righting.
Described fixed part c or fixed part d evenly offers groove, and support arm is arranged in groove.
Described fixed part c or fixed part d can slide on connecting rod.Such setting can contribute to the change that gripper shoe adapts to external force, and reply external force on the impact of centralizer, thus ensures that centralizer plays the effect of righting.
The joint of described slip front end and the middle part a end that slides also is provided with baffle ring e, and the joint of slip rear end and the middle part b end that slides also is provided with baffle ring f.
Described rear end is also provided with rear baffle ring.
To sum up, the beneficial effects of the utility model are:
The utility model can extend in time along with external force increases, the change of flexible reply external force, to cushion the impact of external force on centralizer, and extension spring can also slowly be retracted when external force reduces, pull cluster spring sheet reset, thus play the effect of righting, structure is simple, easy to operate, successful.
Accompanying drawing explanation
Fig. 1 is utility model structure chart.
Mark and corresponding component title in accompanying drawing:
1, upper end, 21, slip front end, 22, slide middle part a end, 23, slide middle part b end, 24, slip rear end, 3, rear end, 4, support arm, 5, cluster spring plate, 6, extension spring, 7, termination, 81, fixed part c, 82, fixed part d.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Embodiment 1:
As shown in Figure 1, a kind of multi-armed centralizer, comprise upper end 1, multiple support arm 4, multiple cluster spring plate 5, rear end 3 and connect the connecting rod of upper end 1 and rear end 3, described connecting rod comprises slip front end 21, the middle part a that slides holds 22, slide middle part b end 23, slip rear end 24, described upper end 1 is connected with slip front end 21, and the junction of slip front end 21 and upper end 1 is also provided with front baffle ring;
Slip front end 21 is connected with slip middle part a end, and the joint of slip front end 21 and the middle part a end 22 that slides is provided with fixed part c81, and fixed part c81 can slide along slip front end 21 and the middle part a end that slides; The middle part b end 23 that slides is connected with slip rear end 24, and the joint of slide middle part b end 23 and slip rear end 24 is also provided with fixed part d82, and fixed part d82 can slide along slip rear end 24 and the middle part b end 23 that slides; Multiple support arm 4 is evenly arranged between fixed part c81 and fixed part d82, and multiple described support arm 4 is shaped form; Described slip middle part a end 22 and the middle part b that slides also are provided with extension spring 6 between holding 23, extension spring 6 two ends are respectively arranged with slidable termination 7, multiple described cluster spring plate 5 is arranged between termination 7, cluster spring plate 5 comprises left spring plate and right latch plate, one end of left spring plate is connected with the termination 7 being positioned at extension spring 6 left end, the other end of left spring plate and one end hinge of right latch plate are on support arm 4, and the other end of right latch plate is connected with the termination 7 of extension spring 6 right-hand member.
Design of the present utility model is: multiple cluster spring plate 5 can when external force increases suddenly along with the direction of multiple gripper shoes of correspondence along connecting rod extends, and because the extension spring 6 that connecting rod is arranged can keep out the impact that external force increases suddenly, can extend in time along with external force increases, the change of flexible reply external force, to cushion the impact of external force on centralizer, and extension spring 6 can also slowly be retracted when external force reduces, pull cluster spring plate 5 to reset, thus play the effect of righting.
Described fixed part c81 or fixed part d82 evenly offers groove, and support arm 4 is arranged in groove.
Described fixed part c81 or fixed part d82 can slide on connecting rod.Such setting can contribute to the change that gripper shoe adapts to external force, and reply external force on the impact of centralizer, thus ensures that centralizer plays the effect of righting.
The joint of described slip front end 21 and the middle part a end 22 that slides also is provided with baffle ring e, and the joint of slip rear end 24 and the middle part b end 23 that slides also is provided with baffle ring f.
Described rear end 3 is also provided with rear baffle ring.
As mentioned above, the utility model can be realized preferably.
Claims (5)
1. a multi-armed centralizer, it is characterized in that, comprise upper end (1), multiple support arm (4), multiple cluster spring plate (5), rear end (3) and connect the connecting rod of upper end (1) and rear end (3), described connecting rod comprises slip front end (21), the middle part a that slides holds (22), the middle part b that slides holds (23), slip rear end (24), described upper end (1) is connected with slip front end (21), and the junction of slip front end (21) and upper end (1) is also provided with front baffle ring;
Slip front end (21) is connected with slip middle part a end, and the joint at slip front end (21) and middle part a end (22) of sliding is provided with fixed part c(81), fixed part c(81) can slide along slip front end (21) and middle part a end (22) of sliding; The middle part b that slides holds (23) to be connected with slip rear end (24), the middle part b that slides holds the joint of (23) and slip rear end (24) to be also provided with fixed part d(82), fixed part d(82) can slide along slip rear end (24) and middle part b end (23) of sliding; Multiple support arm (4) is evenly arranged on fixed part c(81) and fixed part d(82) between, multiple described support arm (4) is shaped form; Described slip middle part a end (22) and the middle part b that slides hold between (23) and are also provided with extension spring (6), extension spring (6) two ends are respectively arranged with slidable termination (7), multiple described cluster spring plate (5) is arranged between termination (7), cluster spring plate (5) comprises left spring plate and right latch plate, one end of left spring plate is connected with the termination (7) being positioned at extension spring (6) left end, the other end of left spring plate and one end hinge of right latch plate are on support arm (4), and the other end of right latch plate is connected with the termination (7) of extension spring (6) right-hand member.
2. a kind of multi-armed centralizer according to claim 1, is characterized in that, described fixed part c(81) or fixed part d(82) on evenly offer groove, support arm (4) is arranged in groove.
3. a kind of multi-armed centralizer according to claim 1, is characterized in that, described fixed part c(81) or fixed part d(82) can slide on connecting rod.
4. a kind of multi-armed centralizer according to claim 1, it is characterized in that, the joint at described slip front end (21) and middle part a end (22) of sliding also is provided with baffle ring e, and the joint at slip rear end (24) and middle part b end (23) of sliding also is provided with baffle ring f.
5. a kind of multi-armed centralizer according to claim 1, is characterized in that, (3) are also provided with rear baffle ring in described rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520078128.XU CN204571870U (en) | 2015-02-04 | 2015-02-04 | A kind of multi-armed centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520078128.XU CN204571870U (en) | 2015-02-04 | 2015-02-04 | A kind of multi-armed centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204571870U true CN204571870U (en) | 2015-08-19 |
Family
ID=53864524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520078128.XU Expired - Fee Related CN204571870U (en) | 2015-02-04 | 2015-02-04 | A kind of multi-armed centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204571870U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632098A (en) * | 2015-02-04 | 2015-05-20 | 成都大漠石油机械有限公司 | Multi-arm righting device for oil exploitation |
| CN112012673B (en) * | 2020-10-22 | 2021-01-15 | 胜利油田固邦石油装备有限责任公司 | Casing centralizer for directional well |
-
2015
- 2015-02-04 CN CN201520078128.XU patent/CN204571870U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632098A (en) * | 2015-02-04 | 2015-05-20 | 成都大漠石油机械有限公司 | Multi-arm righting device for oil exploitation |
| CN112012673B (en) * | 2020-10-22 | 2021-01-15 | 胜利油田固邦石油装备有限责任公司 | Casing centralizer for directional well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |