CN201677168U - Compact large-power hydraulic bolt tensioner - Google Patents
Compact large-power hydraulic bolt tensioner Download PDFInfo
- Publication number
- CN201677168U CN201677168U CN2010201856967U CN201020185696U CN201677168U CN 201677168 U CN201677168 U CN 201677168U CN 2010201856967 U CN2010201856967 U CN 2010201856967U CN 201020185696 U CN201020185696 U CN 201020185696U CN 201677168 U CN201677168 U CN 201677168U
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- piston
- tensioner
- cylinder body
- cylinder
- spring
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- Expired - Fee Related
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Abstract
The utility model provides a compact large-power hydraulic bolt tensioner in order to achieve the purpose of smaller diameter and large power of a tensioner. The tensioner comprises a supporting washer (1), a gear box (2), a toggling ring (3), a spring (4), a tension shaft (5), a supporting bridge (6), a lower cylinder (7), a lower piston (8), an upper cylinder (9), an upper piston (10), a nut (11), a disc-shaped spring (12), a spring cover (13), a joint (14) and an oil dispenser (15). The tensioner is characterized in that the tensioner consists of two oil cylinders, the lower oil cylinder comprises the lower cylinder (7) and the lower piston (8), and the upper oil cylinder comprises an upper cylinder (9) and the upper piston (10).
Description
Affiliated technical field
The utility model relates to a kind of hydraulic bolt tensioning jack, and being mainly used in industries such as petrochemical industry, metallurgical machinery, that bolt is carried out precision is fastening, especially can satisfy under the bigger operating mode of narrower and small, the fastening strength in space and use.
Background technology
For promoting the security performance that industrial equipment is installed, overhauled, just very high to the reliability requirement of bolted.Instrument hydraulic elongator as accurate fastening bolt has also obtained fast development, but install, maintenance is on-the-spot, some bolt not only requires fastening strength bigger, and very narrow and small of space, conventional hydraulic elongator is difficult to meet the demands.The utility model is primarily aimed at this operating mode, has designed the hydraulic elongator of the big strength of a kind of compactness, has satisfied the installation needs of this special operation condition.
The utility model content
The utility model provides a kind of compactness big strength hydraulic elongator, contain supporting bead (1), gear-box (2), dial circle (3), spring (4), tensile axis (5), supporting bridge (6), lower cylinder body (7), lower piston (8), upper cylinder body (9), upper piston (10), nut (11), disk spring (12), spring cup (13), joint (14), separator (15).It is characterized in that: the utility model is made up of the two-stage oil cylinder, and following oil cylinder comprises lower cylinder body (7), and lower piston (8), upper cylinder comprise upper cylinder body (9), upper piston (10).
Operation principle of the present utility model is: hydraulic power supply enters lower cylinder body (7) and upper cylinder body (9) by joint (14) respectively through separator (15), lower piston under the effect of hydraulic power (8) and upper piston (10) are gone up motion, they produce and act on the tensile axis (5) by nut (11) with joint efforts, realize the stretching to bolt.The beneficial effects of the utility model are: power section is formed for the two-stage oil cylinder, and following oil cylinder comprises lower cylinder body (7), lower piston (8), upper cylinder comprises upper cylinder body (9), upper piston (10), the tensile force of its generation is the sum total of these two oil cylinder power, and tensile force is bigger like this, and size is less simultaneously.
Description of drawings
Fig. 1 is that the compact big strength hydraulic bolt tensioning jack of the utility model uses schematic diagram.Description of reference numerals among Fig. 1 is as follows: supporting bead (1), gear-box (2) are arranged, dial circle (3), spring (4), tensile axis (5), supporting bridge (6), lower cylinder body (7), lower piston (8), upper cylinder body (9), upper piston (10), nut (11), disk spring (12), spring cup (13), joint (14), separator (15), equipment bolt (16), equipment nut (17).
The specific embodiment
The work purpose: equipment bolt (16) is stretched with certain load at narrow space, then that equipment nut (17) is fastening.
The course of work: the utility model is installed on the equipment bolt (16), installation method is: the utility model vertically is placed on equipment bolt (16) upper end, one spanner is inserted the cubic hole of tensile axis (5) upper end, circumgyration stretch axle (5), tensile axis lower end screw thread just screws in equipment bolt (16), the plane up to supporting bead (1) contact arrangement nut (17) lower surface.Then insert hydraulic power supply, hydraulic power supply enters lower cylinder body (7) and upper cylinder body (9) by joint (14) respectively through separator (15), lower piston under the effect of hydraulic power (8) and upper piston (10) are gone up motion, they produce and act on the tensile axis (5) by nut (11) with joint efforts, stretch axle (5) and go up force transmission, realize stretching equipment bolt (16) to equipment bolt (16).Be that a spanner is inserted in the cubic hole of gear-box (2) upper end more with that, rotary spanner rotates by spanner and is delivered to group circle (3) by gear-box (2), and the interior hexagonal of dialling circle (3) is enclosed within on the equipment nut (17), and final realization is fastening to nut.When the fastening good back of equipment nut (17) just can release power source, original twin-stage oil cylinder (by lower cylinder body (7), lower piston (8), upper cylinder body (9), upper piston (10) composition), the axial fastening force that just is transformed into equipment bolt (16) with joint efforts of generation.
Claims (1)
1. the utility model provides a kind of compactness big strength hydraulic elongator, contain supporting bead (1), gear-box (2), dial circle (3), spring (4), tensile axis (5), supporting bridge (6), lower cylinder body (7), lower piston (8), upper cylinder body (9), upper piston (10), nut (11), disk spring (12), spring cup (13), joint (14), separator (15), it is characterized in that: the utility model is made up of the two-stage oil cylinder, following oil cylinder comprises lower cylinder body (7), lower piston (8), upper cylinder comprise upper cylinder body (9), upper piston (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201856967U CN201677168U (en) | 2010-05-11 | 2010-05-11 | Compact large-power hydraulic bolt tensioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201856967U CN201677168U (en) | 2010-05-11 | 2010-05-11 | Compact large-power hydraulic bolt tensioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201677168U true CN201677168U (en) | 2010-12-22 |
Family
ID=43342229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201856967U Expired - Fee Related CN201677168U (en) | 2010-05-11 | 2010-05-11 | Compact large-power hydraulic bolt tensioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201677168U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170833A (en) * | 2013-03-05 | 2013-06-26 | 马鞍山市三江机械有限公司 | Novel double-level tensioner |
| CN107717429A (en) * | 2017-11-09 | 2018-02-23 | 大连泰凯工业有限公司 | Multistage super-pressure thin-walled hydraulic elongator for hub of wind power generator kingbolt |
| CN108994590A (en) * | 2018-08-03 | 2018-12-14 | 南通高盛机械制造有限公司 | A kind of automatic dialing ring |
| WO2021093112A1 (en) * | 2019-11-14 | 2021-05-20 | 四川腾菲克科技有限公司 | Bolt tightening method and bolt tightening system |
| US12017332B2 (en) | 2021-03-25 | 2024-06-25 | Milwaukee Electric Tool Corporation | Bolt tensioning tool |
-
2010
- 2010-05-11 CN CN2010201856967U patent/CN201677168U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103170833A (en) * | 2013-03-05 | 2013-06-26 | 马鞍山市三江机械有限公司 | Novel double-level tensioner |
| CN107717429A (en) * | 2017-11-09 | 2018-02-23 | 大连泰凯工业有限公司 | Multistage super-pressure thin-walled hydraulic elongator for hub of wind power generator kingbolt |
| CN108994590A (en) * | 2018-08-03 | 2018-12-14 | 南通高盛机械制造有限公司 | A kind of automatic dialing ring |
| WO2021093112A1 (en) * | 2019-11-14 | 2021-05-20 | 四川腾菲克科技有限公司 | Bolt tightening method and bolt tightening system |
| US12017332B2 (en) | 2021-03-25 | 2024-06-25 | Milwaukee Electric Tool Corporation | Bolt tensioning tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Peipei Document name: Notification that Application Deemed not to be Proposed |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100070 Beijing Science City of Fengtai District Xinghuo Road No. 1 Building 3 layer Changning Patentee after: Beijing HTS engineering equipment Limited by Share Ltd Address before: 100070 Beijing Science City of Fengtai District Xinghuo Road No. 1 Building 3 layer Changning Patentee before: HTS (Beijing) Engineering and Equipment Corp., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing HTS engineering equipment Limited by Share Ltd Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20170511 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |