CN202647025U - Connecting mechanism of double-stage screw bolt stretching device and pump station - Google Patents
Connecting mechanism of double-stage screw bolt stretching device and pump station Download PDFInfo
- Publication number
- CN202647025U CN202647025U CN2012202615740U CN201220261574U CN202647025U CN 202647025 U CN202647025 U CN 202647025U CN 2012202615740 U CN2012202615740 U CN 2012202615740U CN 201220261574 U CN201220261574 U CN 201220261574U CN 202647025 U CN202647025 U CN 202647025U
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- CN
- China
- Prior art keywords
- connecting mechanism
- way valve
- screw bolt
- stretching device
- pump station
- 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.)
- Expired - Fee Related
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a connecting mechanism of a double-stage screw bolt stretching device and a pump station. The connecting mechanism is characterized by comprising a three-way valve and a fast replacement joint, wherein two outlets of the three-way valve are respectively communicated with oil inlet holes of an upper oil cylinder and a lower oil cylinder, and an inlet of the three-way valve is connected with the fast replacement joint. The three-way valve and one fast replacement joint are used for replacing the two fast replacement joints, a distributor and two sections of rubber pipes for connecting the fast replacement joints with the distributor in the existing structure, and the connection of the screw bolt stretching device and the pump station is realized. Compared with the existing mechanism, the connecting mechanism has the advantages that the rubber pipe joints are reduced, the hydraulic oil leakage caused by poor sealing performance is prevented, meanwhile, parts are reduced, the operation is simple, and the cost is reduced.
Description
Technical field
The utility model relates to the mechanism that the twin-stage bolt tensioning jack is connected with hydraulic power unit.
Background technique
The twin-stage bolt tensioning jack is the utensil of pretension or the nut of dismounting on the high-strength bolt in small space.It without frictionally damage, is the best approach of accurately controlling bolt pretightening to the surface of contact that connects.Therefore bolt tensioning jack satisfies the high strength of development, the job requirements of high pulling torque bolt requiring tighter applications more extensive to pretightening force.The existing bindiny mechanism of twin-stage bolt tensioning jack and hydraulic power unit is two quick release couplings 2 and a distributor 5, as shown in Figure 2, wherein an end of two quick release couplings 2 is threaded connection with the oil inlet hole of the up and down oil cylinder of extender respectively, the other end by sebific duct with communicate with hydraulic power unit by sebific duct again after distributor 5 links to each other.This kind structure is because rubber hose coupling is more, if seal badly, hydraulic oil is easily revealed; Part is more simultaneously, troublesome poeration, and cost increases.
Summary of the invention
Problem to be solved in the utility model provides a kind of bindiny mechanism of twin-stage bolt tensioning jack and pumping plant, and its rubber hose coupling is few, is not easy to cause the leakage of hydraulic oil.Simultaneously, its part is less, and is easy to operate, cost.
The bindiny mechanism of the utility model twin-stage bolt tensioning jack and pumping plant is characterized in that: it comprises threeway, quick release coupling; Two outlets of threeway communicate with the oil inlet hole of oil cylinder up and down respectively, and its import links to each other with quick release coupling.
The utility model is by using threeway and two sections sebific ducts that a quick release coupling has replaced two quick release couplings, distributor, the quick release coupling in the existing structure to link to each other with distributor, realized being connected of bolt tensioning jack and pumping plant.This bindiny mechanism has reduced rubber hose coupling with respect to existing mechanism, has prevented because the leakage of the hydraulic oil that poor sealing causes; Simultaneously, it has reduced part, and is simple to operate, has reduced cost.
Description of drawings
Fig. 1 is the structural representation of this Novel connecting mechanism.
Fig. 2 is the structural representation of existing bindiny mechanism.
Embodiment
As can be seen from Figure 1, the bindiny mechanism of the utility model twin-stage bolt tensioning jack and pumping plant, it comprises threeway 1, quick release coupling 2; Two outlets of threeway 1 communicate with oil cylinder 3 up and down, 4 oil inlet hole respectively, and its import links to each other with quick release coupling 2.
The utility model is by using threeway 1 and two sections sebific ducts that a quick release coupling 2 has replaced two quick release couplings, distributor, the quick release coupling in the existing structure to link to each other with distributor, realized being connected of bolt tensioning jack and pumping plant.This bindiny mechanism has reduced rubber hose coupling with respect to existing mechanism, has prevented because the leakage of the hydraulic oil that poor sealing causes; Simultaneously, this bindiny mechanism only needs 1 threeway, 1 quick release coupling and a sebific duct of being connected just can be connected with pumping plant, for 2 quick release couplings of existing structure, 1 distributor, 3 sebific ducts, has reduced number of spare parts, has reduced cost of production, also convenient operation.
Claims (1)
1. the bindiny mechanism of twin-stage bolt tensioning jack and pumping plant, it is characterized in that: it comprises threeway (1), quick release coupling (2); Two outlets of threeway (1) communicate with the oil inlet hole of oil cylinder (3,4) up and down respectively, and its import links to each other with quick release coupling (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202615740U CN202647025U (en) | 2012-06-05 | 2012-06-05 | Connecting mechanism of double-stage screw bolt stretching device and pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202615740U CN202647025U (en) | 2012-06-05 | 2012-06-05 | Connecting mechanism of double-stage screw bolt stretching device and pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202647025U true CN202647025U (en) | 2013-01-02 |
Family
ID=47416133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202615740U Expired - Fee Related CN202647025U (en) | 2012-06-05 | 2012-06-05 | Connecting mechanism of double-stage screw bolt stretching device and pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202647025U (en) |
Cited By (3)
| 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 |
| CN106624760A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山市三江机械有限公司 | Overtravel alarming and resetting stretcher and stretching method thereof |
| CN106736481A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of stretcher and its stretching and installation method |
-
2012
- 2012-06-05 CN CN2012202615740U patent/CN202647025U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN106624760A (en) * | 2016-12-31 | 2017-05-10 | 马鞍山市三江机械有限公司 | Overtravel alarming and resetting stretcher and stretching method thereof |
| CN106736481A (en) * | 2016-12-31 | 2017-05-31 | 马鞍山市三江机械有限公司 | A kind of stretcher and its stretching and installation method |
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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: 20130102 Termination date: 20150605 |
|
| EXPY | Termination of patent right or utility model |