CN104564982A - Top ring hydraulic nut - Google Patents
Top ring hydraulic nut Download PDFInfo
- Publication number
- CN104564982A CN104564982A CN201410756499.9A CN201410756499A CN104564982A CN 104564982 A CN104564982 A CN 104564982A CN 201410756499 A CN201410756499 A CN 201410756499A CN 104564982 A CN104564982 A CN 104564982A
- Authority
- CN
- China
- Prior art keywords
- piston
- nut
- hydraulic cylinder
- wall
- top ring
- 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
Links
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
Abstract
The invention discloses a top ring hydraulic nut. The top ring hydraulic nut comprises a hydraulic cylinder body, wherein the hydraulic cylinder body is annular, an annular groove is formed in the hydraulic cylinder body as a chamber body, a piston is mounted in the chamber body, screw threads are formed on both an outer wall and an inner wall of the piston, a locking nut is screwed onto the outer wall, a number of poking holes are formed in the locking nut, a screw hole is formed in an upper end face of the piston, a fast connector is mounted in the screw hole, and is communicated to the inner part of the annular groove through an own pipeline, an annular sealing groove is also arranged at each of two sides of a sliding face of the piston, and the piston is directly matched with the inner wall of the hydraulic cylinder body in a sealed and sliding manner. The top ring hydraulic nut provided in the invention has the advantages of less process flows, simple processing and structure, convenience for operation and maintenance, lower cost and high working pressure, while a common working pressure is 150MPa or 220MPa; as the top ring hydraulic nut is made from high-strength alloy steel 42CrMo, product safety is improved, and service life is prolonged; as the locking nut is provided, the piston can be locked at free height in a traveling range to ensure safety of an operator and a smaller supporting area; moreover the bottom ring hydraulic nut can be customized as required.
Description
technical field:
The present invention relates to hydraulic nut field, particularly a kind of apical ring hydraulic nut.
background technique:
Hydraulic nut is used for the bolt needing frequent dismounting; The pretension of super large bolt; The occasions such as the locking of large-scale workpiece.And hydraulic pressure excessively full connection dismantling device can be made.Diminished shaft or axle sleeve install or remove bearing, normally not only difficulty but also engineering consuming time.Use hydraulic nut. can increase work efficiency, reduce problems.To be hydraulic oil produced by high pressure oil pump input nut the power promoting piston to its principle, meets installation or removal bearing without lifting an eyebrow, not only accurately but also safety.
summary of the invention:
For solving the deficiencies in the prior art, the invention provides a kind of easy to process, simple apical ring hydraulic nut of structure.
The technical solution used in the present invention is:
Apical ring hydraulic nut, comprise hydraulic cylinder, it is characterized in that: the having circular groove as cavity be provided with piston for annular of described hydraulic cylinder, described piston outer wall and inwall are equipped with screw thread, wherein outer wall is screwed with locking nut, locking nut is provided with some pulling holes, and the upper-end surface of piston is provided with screw and is provided with rapid pipe joint, and rapid pipe joint passes through the pipeline communication of himself in circular groove.
Described apical ring hydraulic nut, is characterized in that: the both sides of the slip surface of described piston all also have annular seal groove, and the inwall of piston and hydraulic cylinder directly seals and is slidably matched.
Compared with prior art, beneficial effect of the present invention is:
Present invention process flow process is few, and processing is simple; Structure is simple, operation, easy to maintenance, low price; Working pressure is high, conventional working pressure 150MPa or 220MPa; Adopt high strength alloy steel 42CrMo to make, improve Security and the life-span of product; With locking nut, arbitrary height within the scope of journey of piston locking being expert at, guarantees the safety of operator; Use supporting surface less; Can according to customer requirement amount body making etc.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is use scheme of installation of the present invention.
embodiment:
Below in conjunction with accompanying drawing, by embodiment, the present invention is described in further detail:
Apical ring hydraulic nut, comprise hydraulic cylinder 1, the having circular groove as cavity be provided with piston 2 for annular of hydraulic cylinder 1, piston 2 outer wall and inwall are equipped with screw thread, wherein outer wall is screwed with locking nut 3, locking nut 3 is provided with some pulling holes 4, the upper-end surface of piston 2 is provided with screw and is provided with rapid pipe joint 5, rapid pipe joint 5 passes through the pipeline communication of himself in circular groove, the both sides of the slip surface of piston 2 all also have annular seal groove 6, and piston 2 directly seals with the inwall of hydraulic cylinder 1 and is slidably matched.
Working principle (using method):
A. hydraulic nut is spun on screw mandrel, piston area and supporting surface are fitted as far as possible;
B. with high-pressure rubber pipe, hydraulic nut and hand pump are connected;
C. after connecting, first screw the unloading valve of manual pump station, then start upper pressure, when thin red line appears in piston (stroke), stop upper pressure immediately; Now should lay down pressure, then be screwed inwards by oil hydraulic cylinder, piston is pushed back oil hydraulic cylinder, upper pressure, beats next stroke, until pretension again;
E., after reaching pretension requirement, use driving lever to screw locking nut 3, at this moment can unscrew the relief lever on pumping plant.
Above-described embodiment is only preferably mode of execution of the present invention, and in addition, the present invention can also have other implementations.It should be noted that, under the prerequisite not departing from the present invention's design, any apparent improvement and modification all should fall within protection scope of the present invention.
Claims (2)
1. apical ring hydraulic nut, comprise hydraulic cylinder, it is characterized in that: the having circular groove as cavity be provided with piston for annular of described hydraulic cylinder, described piston outer wall and inwall are equipped with screw thread, wherein outer wall is screwed with locking nut, locking nut is provided with some pulling holes, and the upper-end surface of piston is provided with screw and is provided with rapid pipe joint, and rapid pipe joint passes through the pipeline communication of himself in circular groove.
2. apical ring hydraulic nut according to claim 1, is characterized in that: the both sides of the slip surface of described piston all also have annular seal groove, and the inwall of piston and hydraulic cylinder directly seals and is slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756499.9A CN104564982A (en) | 2014-12-10 | 2014-12-10 | Top ring hydraulic nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410756499.9A CN104564982A (en) | 2014-12-10 | 2014-12-10 | Top ring hydraulic nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564982A true CN104564982A (en) | 2015-04-29 |
Family
ID=53081812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410756499.9A Pending CN104564982A (en) | 2014-12-10 | 2014-12-10 | Top ring hydraulic nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564982A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881356A (en) * | 2017-03-13 | 2017-06-23 | 太原科技大学 | A kind of herringbone corrugating roll of rolled metal composite plate |
| CN108708899A (en) * | 2018-08-13 | 2018-10-26 | 上海宝骜工业技术服务有限公司 | A kind of hydraulic nut component improving hydraulic nut and its application |
| CN111120490A (en) * | 2019-12-13 | 2020-05-08 | 扬力集团股份有限公司 | Hydraulic pre-tightening nut for combined machine body of press machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942547A (en) * | 1995-07-28 | 1997-02-14 | Showa Alum Corp | Nut for but fitting |
| CN202926821U (en) * | 2012-11-07 | 2013-05-08 | 武汉卡特工业股份有限公司 | Self-locking hydraulic nut |
| CN203009527U (en) * | 2013-01-05 | 2013-06-19 | 西安科技大学 | Limit unloading hydraulic nut |
| CN103836051A (en) * | 2013-12-26 | 2014-06-04 | 安徽省阿姆达机床制造有限公司 | Hydraulic nut used on base of universal rolling mill |
| CN104154093A (en) * | 2014-08-22 | 2014-11-19 | 无锡市第二标准件制造有限公司 | Novel hydraulic nut |
| CN204371887U (en) * | 2014-12-10 | 2015-06-03 | 马鞍山市益华液压机具有限公司 | Apical ring hydraulic nut |
-
2014
- 2014-12-10 CN CN201410756499.9A patent/CN104564982A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0942547A (en) * | 1995-07-28 | 1997-02-14 | Showa Alum Corp | Nut for but fitting |
| CN202926821U (en) * | 2012-11-07 | 2013-05-08 | 武汉卡特工业股份有限公司 | Self-locking hydraulic nut |
| CN203009527U (en) * | 2013-01-05 | 2013-06-19 | 西安科技大学 | Limit unloading hydraulic nut |
| CN103836051A (en) * | 2013-12-26 | 2014-06-04 | 安徽省阿姆达机床制造有限公司 | Hydraulic nut used on base of universal rolling mill |
| CN104154093A (en) * | 2014-08-22 | 2014-11-19 | 无锡市第二标准件制造有限公司 | Novel hydraulic nut |
| CN204371887U (en) * | 2014-12-10 | 2015-06-03 | 马鞍山市益华液压机具有限公司 | Apical ring hydraulic nut |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881356A (en) * | 2017-03-13 | 2017-06-23 | 太原科技大学 | A kind of herringbone corrugating roll of rolled metal composite plate |
| CN108708899A (en) * | 2018-08-13 | 2018-10-26 | 上海宝骜工业技术服务有限公司 | A kind of hydraulic nut component improving hydraulic nut and its application |
| CN111120490A (en) * | 2019-12-13 | 2020-05-08 | 扬力集团股份有限公司 | Hydraulic pre-tightening nut for combined machine body of press machine |
| CN111120490B (en) * | 2019-12-13 | 2021-09-14 | 扬力集团股份有限公司 | Hydraulic pre-tightening nut for combined machine body of press machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104564982A (en) | Top ring hydraulic nut | |
| CN104139297B (en) | Wheel axle pressure machine | |
| CN104564983A (en) | Bottom ring hydraulic nut | |
| CN204371887U (en) | Apical ring hydraulic nut | |
| CN202639811U (en) | Stroke control part for two-stage bolt stretcher | |
| CN204371889U (en) | Hn type hydraulic nut | |
| CN201856078U (en) | Device for press mounting by using hydraulic pressure | |
| CN204371888U (en) | Base ring hydraulic nut | |
| CN203779076U (en) | Pressing machine for caterpillar track pin shaft of bulldozer | |
| CN204239172U (en) | A kind of vertical reciprocating piston type BOG gas compressor | |
| CN103008965A (en) | Maintenance method for hydraulic jacking oil cylinder of tower crane | |
| CN203665460U (en) | Valve flange expansion opener | |
| CN204524740U (en) | Single-stage short bolt tensioning jack | |
| CN205423358U (en) | Fluid system booster superhigh pressure piston draw bail | |
| CN204525352U (en) | The slim bolt tensioning jack of single-stage | |
| CN104564984A (en) | HN-type hydraulic nut | |
| CN204711530U (en) | A kind of hydraulic pressure pulls formula tooth and buys or get by illegal means cover machine | |
| CN204604219U (en) | A kind of large pump valve drawbench | |
| CN204366393U (en) | Single-stage high type bolt tensioning jack | |
| CN103878567A (en) | Multi-purpose suspended type lifting drawing press | |
| CN104551634A (en) | Two-stage high-type bolt stretcher | |
| CN204108944U (en) | Plungers pump plunger dismantling device | |
| CN106625412B (en) | A kind of rapid dismounting apparatus and application method of vertical reciprocating type compressor valve | |
| CN205148229U (en) | Quick assembly disassembly device of vertical reciprocating compressor pneumatic valve | |
| CN202132577U (en) | Detachable electromagnetic iron core of electromagnetic valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |