CN104154093A - Novel hydraulic nut - Google Patents
Novel hydraulic nut Download PDFInfo
- Publication number
- CN104154093A CN104154093A CN201410416644.9A CN201410416644A CN104154093A CN 104154093 A CN104154093 A CN 104154093A CN 201410416644 A CN201410416644 A CN 201410416644A CN 104154093 A CN104154093 A CN 104154093A
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- China
- Prior art keywords
- nut
- novel hydraulic
- seal ring
- nut body
- hydraulic nut
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Actuator (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a novel hydraulic nut. The novel hydraulic nut is characterized by comprising a nut body, a sealing ring matched with the nut body, and a hydraulic oil inlet formed beside the nut body, a pulling device is arranged on the lower portion of the hydraulic oil inlet, the right end of the pulling device is connected with the sealing ring, the sealing ring is connected with one end of a piston body, and the side of the other end of the piston body is connected with a tightening ring in a penetrating mode. According to the novel hydraulic nut, on the full basis of the characteristic that thread connection and hydraulic power can provide large pre-tightening force, the novel hydraulic nut has the advantages of being small in size, easy to operate, good in anti-loosening performance, capable of providing large pre-tightening force and the like, and the novel hydraulic nut has large using value and wide development and application prospects on the occasions where large bolts are used for fastening connection.
Description
Technical field
The present invention relates to technical field of fastening, especially relate to a kind of novel hydraulic nut.
Background technique
Bolt Connection is considered to the main form of mechanical removable connection, and plain bolt connects particularly king-bolt connection, as each attachment bolt of coal winning machine, ventilator and frame or basic attachment bolt, hoist mechanical pedestal and each attachment bolt, metal derrick connects etc. with basis and each portion, and the main failure cause of bolt is that pretightening force is not enough to be caused, so how to solve pretightening force deficiency and become problem demanding prompt solution.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of novel hydraulic nut is provided, it takes full advantage of the feature that the connection of screw thread and hydraulic power can provide large pretightening force, have that volume is little, simple to operate, anti-loosening property is good, the large advantages such as pretightening force can be provided, there is king-bolt tight joint occasion, having large use value and wide development and application prospect.
For solving the problems of the technologies described above, the technical solution used in the present invention is: comprise nut body and the seal ring coordinating with nut body and the hydraulic oil entrance that is arranged on nut body side, described hydraulic oil entrance bottom is provided with arrangement for controlling, described arrangement for controlling right-hand member connects seal ring, described seal ring is connected with piston body one end, and the other end sidepiece of described piston body runs through and is connected with collar.
Above-mentioned a kind of novel hydraulic nut, is characterized in that: described nut body is groove type.
Above-mentioned a kind of novel hydraulic nut, is characterized in that: described nut body material is 40CrMnMo.
Above-mentioned a kind of novel hydraulic nut, is characterized in that: described collar excircle annular knurl, adopts v thread M73X2.
Above-mentioned a kind of novel hydraulic nut, is characterized in that: described seal ring is the special seal ring of non-standard combination.
The present invention compared with prior art has the following advantages:
In sum, the present invention takes full advantage of the feature that the connection of screw thread and hydraulic power can provide large pretightening force, have that volume is little, simple to operate, anti-loosening property is good, the large advantages such as pretightening force can be provided, there is king-bolt tight joint occasion, having large use value and wide development and application prospect.
Below by drawings and Examples, technological scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is hydraulic nut assembling schematic diagram of the present invention.
Description of reference numerals:
1, nut body; 2, seal ring; 3, piston body; 4, collar; 5, arrangement for controlling.
Embodiment
As shown in Figure 1, a kind of novel hydraulic nut, it is characterized in that: comprise nut body 1 and the seal ring 2 coordinating with nut body 1 and the hydraulic oil entrance that is arranged on nut body 1 side, described hydraulic oil entrance bottom is provided with arrangement for controlling 5, described arrangement for controlling 5 right-hand members connect seal ring 2, described seal ring 2 is connected with piston body 3 one end, and the other end sidepiece of described piston body 3 runs through and is connected with collar 4.
In the present embodiment, described nut body 1 is groove type.
In the present embodiment, described nut body 1 material is 40CrMnMo.
In the present embodiment, described collar 4 excircle annular knurls, adopt v thread M73X2.
In the present embodiment, described seal ring 2 is the special seal ring of non-standard combination.
As shown in Fig. 1, coupled bolt thread part connects with nut body, and bolt major part is positioned at collar right side, and connected piece is positioned between collar and bolt major part.During work, first manually nut is screwed, and make collar be positioned at right side; Then make hydraulic oil enter from A mouth; the pressure-acting of hydraulic oil is on arrangement for controlling 5; by 5 pairs of piston bodies of arrangement for controlling and nut body effect; affect nut body 1 to be moved to the left; by bolt lengthening, when colour code exposes, (now indicate that pretightening force reaches) and should screw rapidly collar 4, collar end face is leaned against on nut body; venting oil pressure, bolton is complete; Reversed in order during dismounting.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.
Claims (5)
1. a novel hydraulic nut, it is characterized in that: comprise nut body (1) and the seal ring (2) coordinating with nut body (1) and the hydraulic oil entrance that is arranged on nut body (1) side, described hydraulic oil entrance bottom is provided with arrangement for controlling (5), described arrangement for controlling (5) right-hand member connects seal ring (2), described seal ring (2) is connected with piston body (3) one end, and the other end sidepiece of described piston body (3) runs through and is connected with collar (4).
2. according to a kind of novel hydraulic nut claimed in claim 1, it is characterized in that: described nut body (1) is groove type.
3. according to a kind of novel hydraulic nut claimed in claim 1, it is characterized in that: described nut body (1) material is 40CrMnMo.
4. according to a kind of novel hydraulic nut claimed in claim 1, it is characterized in that: described collar (4) excircle annular knurl, adopts v thread M73X2.
5. according to a kind of novel hydraulic nut claimed in claim 1, it is characterized in that: described seal ring (2) is the special seal ring of non-standard combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416644.9A CN104154093A (en) | 2014-08-22 | 2014-08-22 | Novel hydraulic nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410416644.9A CN104154093A (en) | 2014-08-22 | 2014-08-22 | Novel hydraulic nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104154093A true CN104154093A (en) | 2014-11-19 |
Family
ID=51879680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410416644.9A Pending CN104154093A (en) | 2014-08-22 | 2014-08-22 | Novel hydraulic nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104154093A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564982A (en) * | 2014-12-10 | 2015-04-29 | 马鞍山市益华液压机具有限公司 | Top ring hydraulic nut |
| CN104564984A (en) * | 2014-12-10 | 2015-04-29 | 马鞍山市益华液压机具有限公司 | HN-type hydraulic nut |
| CN107401548A (en) * | 2017-08-10 | 2017-11-28 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll hydraulic nut |
-
2014
- 2014-08-22 CN CN201410416644.9A patent/CN104154093A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564982A (en) * | 2014-12-10 | 2015-04-29 | 马鞍山市益华液压机具有限公司 | Top ring hydraulic nut |
| CN104564984A (en) * | 2014-12-10 | 2015-04-29 | 马鞍山市益华液压机具有限公司 | HN-type hydraulic nut |
| CN107401548A (en) * | 2017-08-10 | 2017-11-28 | 浙江恒成硬质合金有限公司 | A kind of hard alloy composite roll hydraulic nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |