CN201517546U - Hydraulic pressurizing screw - Google Patents
Hydraulic pressurizing screw Download PDFInfo
- Publication number
- CN201517546U CN201517546U CN2009200287044U CN200920028704U CN201517546U CN 201517546 U CN201517546 U CN 201517546U CN 2009200287044 U CN2009200287044 U CN 2009200287044U CN 200920028704 U CN200920028704 U CN 200920028704U CN 201517546 U CN201517546 U CN 201517546U
- Authority
- CN
- China
- Prior art keywords
- nut
- pressure foot
- hydraulic
- stud bolt
- reinforcing
- 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 - Lifetime
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
A hydraulic pressurizing screw which can lower cost and has excellent use effect comprises a double-head bolt. One end of the double-head bolt is connected with a fixing nut through screw threads, and the other end of the double-head bolt is connected with a retaining nut through screw threads, a pressurizing seat is sleeved outside the retaining nut, a gap is designed between the retaining nut and the pressurizing seat, one end of the pressurizing seat is provided with a sleeve barrel which is provided with an inner boss, the periphery of the sleeve barrel is provided with an observation window, the length of the pressurizing seat is larger than that of the retaining nut, and a bolt on one side of one end of the pressurizing seat with the inner boss is connected with a piston nut through screw threads.
Description
Technical field
The utility model relates to a kind of hydraulic pressure screw, relates in particular to a kind of hydraulic compression screw.
Background technique
The hydraulic pressure screw that uses comprises stud bolt at present, the threaded one end of stud bolt is connected with set screw nut, the other end hydraulic nut that has been threaded, this structure directly utilizes hydraulic nut fastening, after pressurization was finished, hydraulic nut must be retained on the stud bolt, like this cost height, and this structure is damaged easily, and using effect is poor.
Summary of the invention
The hydraulic compression screw that the purpose of this utility model provides and a kind ofly can reduce cost, using effect is good.
To achieve these goals, the technological scheme that the utility model is taked is: a kind of hydraulic compression screw, comprise stud bolt, the threaded one end of stud bolt is connected with set screw nut, it is characterized in that, the stud bolt the other end reinforcing nut that has been threaded, reinforce nut overcoat and be connected to pressure foot, design is gapped between reinforcing nut and the pressure foot, pressure foot is the sleeve that an end has inner convex platform, the sleeve periphery has viewing window, and the length of pressure foot is greater than the length of reinforcing nut, and piston unt has been threaded on the bolt of a side of the band convex you of pressure foot.
The utility model has the advantages of and be: because the utility model comprises stud bolt, the threaded one end of stud bolt is connected with set screw nut, the stud bolt the other end reinforcing nut that has been threaded, reinforce nut overcoat and be connected to pressure foot, design is gapped between reinforcing nut and the pressure foot, pressure foot is the sleeve that an end has inner convex platform, the sleeve periphery has viewing window, the length of pressure foot is greater than the length of reinforcing nut, piston unt has been threaded on the bolt of one side of the band convex you of pressure foot, so use the utility model can avoid piston unt, reduced cost, using effect is good.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a set screw nut or reinforce the structural representation of nut in the utility model;
Fig. 3 is the structural representation of pressure cuffs in the utility model;
Fig. 4 is the structural representation of piston unt in the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
A kind of hydraulic compression screw, shown in Fig. 1,2,3,4, comprise stud bolt 3, the threaded one end of stud bolt 3 is connected with set screw nut 2, stud bolt 3 the other ends have been threaded and have reinforced nut 4, reinforce the nut 4 outer pressure foot 5 that are socketed with, design is gapped between reinforcing nut 4 and the pressure foot 5, pressure foot 5 is the sleeve that an end has inner convex platform 8, the sleeve periphery has viewing window 7, the length of pressure foot 5 is greater than the length of reinforcing nut 4, and piston unt 6 has been threaded on the bolt of a side of the band convex you of pressure foot 5; In the present embodiment, set screw nut 2 is many prismatics rounding nut with reinforcing nut 4, reinforcing nut like this can freely rotate in pressure foot, have on the periphery of set screw nut 2 and reinforcing nut 4 and put forth effort hole 1, when needing reinforcement, make viewing window face toward the staff, to putting forth effort the application of force in hole, reinforce by viewing window.In the present embodiment, piston unt 6 comprises hydraulic piston cylinder 11, and design has hydraulic piston 12 in the hydraulic piston cylinder 11, has pouring orifice 10 and air vent 9 on the periphery of hydraulic piston cylinder 11, and during use, pouring orifice 10 and air vent 9 can change mutually.In the present embodiment, the external diameter of pressure foot 5 equates with the external diameter of piston unt 6, and this structure can make vertically stressed.In the present embodiment, stud bolt 3 is full silk bolt.In the present embodiment, set screw nut 2 and reinforcing nut 4 are respectively a plurality of, more help reinforcing.The both ends of the surface of stud bolt are recessed six rib flute profiles in the utility model, are convenient to loading and unloading and reinforce nut.
Using method of the present utility model:
1, stud bolt is inserted in the silk hole of stressed object;
2, the two ends of stud bolt are connected and fixed nut respectively and reinforce nut, until fastening;
3, pressure foot is enclosed within outside the reinforcing nut, viewing window on the pressure foot is facing to the staff, then piston unt is connected on the stud bolt of a side of band convex you of pressure foot, by hydraulic pulldown piston unt is pressurizeed, piston unt passes to pressure foot with power, pressure foot is given stressed object pressurization, the gap between the stressed object is reduced gradually, till needed force value;
4, apply power to reinforcing nut by putting forth effort the hole with hand chisel by viewing window, reach till the needed pressure;
5, piston unt is put pressure, piston unt and pressure foot are laid down, only keep the reinforcing nut and get final product.
Claims (6)
1. hydraulic compression screw, comprise stud bolt (3), the threaded one end of stud bolt (3) is connected with set screw nut (2), it is characterized in that, described stud bolt (3) the other end reinforcing nut (4) that has been threaded, reinforce the outer pressure foot (5) that is socketed with of nut (4), design is gapped between reinforcing nut (4) and the pressure foot (5), pressure foot (5) is the sleeve that an end has inner convex platform (8), the sleeve periphery has viewing window (7), the length of pressure foot (5) is greater than the length of reinforcing nut (4), and piston unt (6) has been threaded on the bolt of a side of the band convex you of pressure foot (5).
2. the described hydraulic compression screw of root a tree name claim 1 is characterized in that, described set screw nut (2) is many prismatics rounding nut with reinforcing nut (4), has on the periphery of set screw nut (2) and reinforcing nut (4) and puts forth effort hole (1).
3. root a tree name claim 1 or 2 described hydraulic compression screws, it is characterized in that, described piston unt (6) comprises hydraulic piston cylinder (11), and design has hydraulic piston (12) in the hydraulic piston cylinder (11), has pouring orifice (10) and air vent (9) on the periphery of hydraulic piston cylinder (11).
4. the described hydraulic compression screw of root a tree name claim 3 is characterized in that, the external diameter of described pressure foot (5) equates with the external diameter of piston unt (6).
5. the described hydraulic compression screw of root a tree name claim 4 is characterized in that, described stud bolt (3) is full silk bolt.
6. the described hydraulic compression screw of root a tree name claim 5 is characterized in that, described set screw nut (2) and reinforcing nut (4) are respectively a plurality of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200287044U CN201517546U (en) | 2009-06-30 | 2009-06-30 | Hydraulic pressurizing screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200287044U CN201517546U (en) | 2009-06-30 | 2009-06-30 | Hydraulic pressurizing screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517546U true CN201517546U (en) | 2010-06-30 |
Family
ID=42498268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200287044U Expired - Lifetime CN201517546U (en) | 2009-06-30 | 2009-06-30 | Hydraulic pressurizing screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517546U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161810B (en) * | 2011-12-12 | 2016-08-10 | 奥格斯塔韦斯兰股份公司 | A kind of connection assembly |
-
2009
- 2009-06-30 CN CN2009200287044U patent/CN201517546U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103161810B (en) * | 2011-12-12 | 2016-08-10 | 奥格斯塔韦斯兰股份公司 | A kind of connection assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100630 Effective date of abandoning: 20090630 |