CN102758823A - Hydraulic nut - Google Patents
Hydraulic nut Download PDFInfo
- Publication number
- CN102758823A CN102758823A CN2011101053661A CN201110105366A CN102758823A CN 102758823 A CN102758823 A CN 102758823A CN 2011101053661 A CN2011101053661 A CN 2011101053661A CN 201110105366 A CN201110105366 A CN 201110105366A CN 102758823 A CN102758823 A CN 102758823A
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- CN
- China
- Prior art keywords
- oil
- hold
- nut
- hydraulic
- hydraulic nut
- 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
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- Pressure Vessels And Lids Thereof (AREA)
- Gasket Seals (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The invention relates to the field of mechanical parts, in particular to a hydraulic nut. The hydraulic nut comprises a nut body, oil delivery pipes, an oil cavity, hold-down rings, counter bored holes, an oil adding hole and an oil drain hole; the oil adding hole and the oil drain hole are positioned in the counter bored holes; the oil adding hole and the oil drain hole are connected with the oil cavity by the oil delivery pipes; the hold-down rings are embedded in the oil cavity; O-shaped sealing rings are sleeved on the hold-down rings; a joint is arranged on the oil adding hole; and an oil drain valve is arranged on the oil drain hole. By the structure of arranging a hydraulic device on the nut, the pressure can be applied to a workpiece by the hydraulic device; the hydraulic nut occupies a small space and is convenient to assemble and disassemble; and the pre-tightening force can be controlled.
Description
Technical field
The present invention relates to the mechanical parts field, especially a kind of hydraulic nut.
Background technique
Some occasion in industries such as machinery, metallurgy, oil, chemical industry is often wanted the pretension of frequent dismounting, fastening bolts and nuts; The pretension of high strength nut particularly; Normally adopt torque spanner, hydraulic spanner to wait to realize, owing to use the pretension instrument, so the dismounting nut will take certain spatial position; Dismounting is very inconvenient, and pretightening force is difficult to control.
Summary of the invention
Inconvenient in order to overcome existing nut dismounting, the unmanageable deficiency of pretightening force the invention provides a kind of hydraulic nut.
The technical solution adopted for the present invention to solve the technical problems is: a kind of hydraulic nut; Comprise nut body, transport pipe, oil pocket; Hold-down ring, counterbore, tank filler sleeve and drain oil; Tank filler sleeve and drain oil are positioned at counterbore, and tank filler sleeve is connected with oil pocket through transport pipe with drain oil, and hold-down ring is embedded in the oil pocket.
Be with " O " seal ring on the hold-down ring.
Tank filler sleeve is provided with joint.
Drain oil is provided with fuel outlet valve.
The invention has the beneficial effects as follows, the structure of hydraulic pressure installation is set on nut, can exert pressure to workpiece by means of hydraulic pressure installation, it is little to take up room, easy accessibility, and pretightening force can be controlled.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is a schematic representation of the present invention;
Fig. 2 is a plan view of the present invention.
1. nut bodies among the figure, 2. transport pipe, 3. oil pocket, 4. hold-down ring, 41. seal rings, 5. counterbore, 6. tank filler sleeve, 61. joints, 7. drain oil, 71. fuel outlet valves.
Embodiment
Like Fig. 1 is schematic representation of the present invention; Fig. 2 is a plan view of the present invention, and a kind of hydraulic nut comprises nut body 1, transport pipe 2, oil pocket 3; Hold-down ring 4, counterbore 5, tank filler sleeve 6 and drain oil 7; Tank filler sleeve 6 is positioned at counterbore 5 with drain oil 7, and tank filler sleeve 6 is connected with oil pocket 3 through transport pipe 2 with drain oil 7, and hold-down ring 4 is embedded in the oil pocket 3.Be with " O " seal ring 41 on the hold-down ring 4.Tank filler sleeve 6 is provided with joint 61.Drain oil 7 is provided with fuel outlet valve 71.
Claims (4)
1. hydraulic nut; It is characterized in that: comprise nut body (1), transport pipe (2), oil pocket (3); Hold-down ring (4), counterbore (5), tank filler sleeve (6) and drain oil (7); Tank filler sleeve (6) and drain oil (7) are positioned at counterbore (5), and tank filler sleeve (6) is connected with oil pocket (3) through transport pipe (2) with drain oil (7), and hold-down ring (4) is embedded in the oil pocket (3).
2. hydraulic nut according to claim 1 is characterized in that: be with " O " seal ring (41) on the hold-down ring (4).
3. hydraulic nut according to claim 1 is characterized in that: tank filler sleeve (6) is provided with joint (61).
4. hydraulic nut according to claim 1 is characterized in that: drain oil (7) is provided with fuel outlet valve (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101053661A CN102758823A (en) | 2011-04-27 | 2011-04-27 | Hydraulic nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101053661A CN102758823A (en) | 2011-04-27 | 2011-04-27 | Hydraulic nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758823A true CN102758823A (en) | 2012-10-31 |
Family
ID=47053413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101053661A Pending CN102758823A (en) | 2011-04-27 | 2011-04-27 | Hydraulic nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758823A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108471A (en) * | 2015-09-23 | 2015-12-02 | 中国重型机械研究院股份公司 | Adjustable pretightening and fixing device |
-
2011
- 2011-04-27 CN CN2011101053661A patent/CN102758823A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108471A (en) * | 2015-09-23 | 2015-12-02 | 中国重型机械研究院股份公司 | Adjustable pretightening and fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121031 |