CN104806483A - Hydraulic nut demounted nondestructively and demounting method of hydraulic nut - Google Patents
Hydraulic nut demounted nondestructively and demounting method of hydraulic nut Download PDFInfo
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- CN104806483A CN104806483A CN201410033833.8A CN201410033833A CN104806483A CN 104806483 A CN104806483 A CN 104806483A CN 201410033833 A CN201410033833 A CN 201410033833A CN 104806483 A CN104806483 A CN 104806483A
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- pressure
- piston
- hydraulic nut
- ring
- nondestructive demounting
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Abstract
The invention relates to a hydraulic nut demounted nondestructively and demounting method of the hydraulic nut. The hydraulic nut comprises a positioning ring (1), an adjusting ring (2), a locking nut (4), a pressure piston (5), a pressure body (7), a piston rod (10) and an oil pump high-voltage joint (12); the oil pump high-voltage joint (12) is connected with the pressure body (7); the pressure body (7) is connected with the pressure piston (5); the pressure piston (5) is connected with the piston rod (10); the positioning ring (1) is arranged on the pressure piston (5); the adjusting ring (2) is connected with the positioning ring (1); the locking nut (4) is connected with the pressure piston (5). Compared with the prior art, the hydraulic nut has the advantage of nondestructive demounting.
Description
Technical field
The present invention relates to a kind of hydraulic nut and method for dismounting, especially relate to a kind of nondestructive demounting hydraulic nut and method for dismounting thereof.
Background technique
At present the piston rod of a lot of large reciprocating compressor is connected with crosshead and all adopts hydraulic nut to connect.This Placement can provide very large pretightening force and compact structure, under normal circumstances convenient disassembly, and linkage structure is more complicated, with high content of technology, also higher for installation requirement.But this hydraulic nut also also exists a drawback, if the aging a variety of causes that waits of the Sealing exactly in unloading process inside oil hydraulic cylinder causes hydraulic fluid leak pressure to stamp, this hydraulic nut just cannot be dismantled.Final method destroys hydraulic nut protection piston rod exactly.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of nondestructive demounting hydraulic nut and method for dismounting thereof are provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of nondestructive demounting hydraulic nut, it is characterized in that, comprise positioning ring, adjustment ring, locking nut, pressure piston, pressure body, piston rod and oil pump high pressure joint, described oil pump high pressure joint is connected with pressure body, described pressure body is connected with pressure piston, and described pressure piston is connected with piston rod, and described positioning ring is located on pressure piston, described adjustment ring is connected with positioning ring, and described locking nut is connected with pressure piston.
Described adjustment ring is connected with positioning ring by screw.
Seal ring is provided with between described pressure piston and pressure body.
Described pressure piston is provided with thrust ring, and this thrust ring is provided with linking springs.
Described pressure body is provided with the pin be connected with pressure piston.
A method for dismounting for nondestructive demounting hydraulic nut, is characterized in that, comprises the following steps:
1) two air valves of the crosshead be connected with piston rod of dismantling;
2) steel plate parallels is put in cylinder interior;
3) hand turning makes steel plate parallels be fixed by piston body and casing wall;
4) above flywheel, hang a guide chain, draw flywheel to carry out jiggering by guide chain and force piston rod joint to produce elastic stretching distortion, until locking nut loosens.
Described steel plate parallels has two pieces, and thickness is 15-20mm.
Described guide chain pulling force is no more than that compressor type piston is maximum bears piston force.
Described step 4) implement after namely reach and use hydraulic-pressure pump pressure of buying oil to make locking nut (4) loosen same effect, locking nut is loosened.
Compared with prior art, damage leakage of oil at hydraulic nut Sealing, when cannot lay with high pressure oil pump, the present invention originally has the advantage of not damaged dismounting.
Accompanying drawing explanation
The structural representation that Fig. 1 hydraulic nut connects;
The structural representation of Fig. 2 method for dismounting of the present invention;
Wherein: 1, positioning ring; 2, adjustment ring; 3, screw; 4, locking nut; 5, pressure piston; 6 seal rings; 7, pressure body; 8, linking springs; 9, thrust ring (two halves); 10 piston rods; 11 pins; 12 oil pump high pressure joints; 13, flywheel; 14, second piston; 15, steel plate parallels; 16, first stage piston.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.The present embodiment is implemented premised on technical solution of the present invention, give detailed mode of execution and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, a kind of nondestructive demounting hydraulic nut, comprise positioning ring 1, adjustment ring 2, locking nut 4, pressure piston 5, pressure body 7, piston rod 10 and oil pump high pressure joint 12, described oil pump high pressure joint 12 is connected with pressure body 7, described pressure body 7 is connected with pressure piston 5, and described pressure piston 5 is connected with piston rod 10, and described positioning ring 1 is located on pressure piston 5, described adjustment ring 2 is connected with positioning ring 1, and described locking nut 4 is connected with pressure piston 5.
Described adjustment ring 2 is connected with positioning ring 1 by screw 3.
Seal ring 6 is provided with between described pressure piston 5 and pressure body 7.
Described pressure piston 5 is provided with thrust ring 9, and this thrust ring 9 is provided with linking springs 8.
Described pressure body 7 is provided with the pin 11 be connected with pressure piston 5.
A method for dismounting for nondestructive demounting hydraulic nut, the method comprises the following steps:
1) dismantle by two air valves of crosshead;
2) the thick steel plate parallels of 15-20mm 15 (thickness is greater than more than 5 times, rear stop gap) is put in cylinder interior;
3) hand turning makes steel plate parallels 15 be fixed by first stage piston 16 and casing wall;
4) above flywheel 13, hanging a guide chain, (the maximum strength of piston of 6M40 type is 40 tons, as long as so the guide chain being no more than 40 tons can use) with guide chain draw flywheel carry out jiggering force piston rod 10 afterbody produce elastic stretching distortion, until hydraulic nut loosen, its effect as pressure of buying oil make hydraulic nut loosen.
5) suppressing body pressure 150Mpa < piston force when installing is 40 tons, as long as just can loosen more than 150Mpa nut
6) the piston rod 10 joint diameter of this compressor of 6M40-320/0.4-30-BX is minimum, so once the place of the stressed elongation of piston rod 10 is attaching nut certainly locates.
Claims (9)
1. a nondestructive demounting hydraulic nut, it is characterized in that, comprise positioning ring (1), adjustment ring (2), locking nut (4), pressure piston (5), pressure body (7), piston rod (10) and oil pump high pressure joint (12), described oil pump high pressure joint (12) is connected with pressure body (7), described pressure body (7) is connected with pressure piston (5), described pressure piston (5) is connected with piston rod (10), described positioning ring (1) is located on pressure piston (5), described adjustment ring (2) is connected with positioning ring (1), described locking nut (4) is connected with pressure piston (5).
2. nondestructive demounting hydraulic nut according to claim 1, it is characterized in that, described adjustment ring (2) is connected with positioning ring (1) by screw (3).
3. nondestructive demounting hydraulic nut according to claim 1, is characterized in that, be provided with seal ring (6) between described pressure piston (5) and pressure body (7).
4. nondestructive demounting hydraulic nut according to claim 1, it is characterized in that, described pressure piston (5) is provided with thrust ring (9), and this thrust ring (9) is provided with linking springs (8).
5. nondestructive demounting hydraulic nut according to claim 1, it is characterized in that, described pressure body (7) is provided with the pin (11) be connected with pressure piston (5).
6. a method for dismounting for nondestructive demounting hydraulic nut as claimed in claim 1, is characterized in that, comprise the following steps:
1) two air valves of the crosshead be connected with piston rod (10) of dismantling;
2) steel plate parallels is put in cylinder interior;
3) hand turning makes steel plate parallels be fixed by piston body (16) and casing wall;
4) extension-guide chain above flywheel, draws flywheel to carry out jiggering by guide chain and forces piston rod afterbody to produce elastic stretching distortion, until locking nut (4) loosens.
7. the method for dismounting of a kind of nondestructive demounting hydraulic nut according to claim 6, it is characterized in that, described steel plate parallels has two pieces, and thickness is 15-20mm.
8. the method for dismounting of a kind of nondestructive demounting hydraulic nut according to claim 6, is characterized in that, described guide chain pulling force is no more than that compressor type piston is maximum bears piston force.
9. the method for dismounting of a kind of nondestructive demounting hydraulic nut according to claim 6, is characterized in that, described step 4) implement after namely reach and use hydraulic-pressure pump pressure of buying oil to make locking nut (4) loosen same effect, locking nut is loosened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033833.8A CN104806483A (en) | 2014-01-24 | 2014-01-24 | Hydraulic nut demounted nondestructively and demounting method of hydraulic nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410033833.8A CN104806483A (en) | 2014-01-24 | 2014-01-24 | Hydraulic nut demounted nondestructively and demounting method of hydraulic nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104806483A true CN104806483A (en) | 2015-07-29 |
Family
ID=53691609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410033833.8A Pending CN104806483A (en) | 2014-01-24 | 2014-01-24 | Hydraulic nut demounted nondestructively and demounting method of hydraulic nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971853A (en) * | 2016-07-14 | 2016-09-28 | 沈阳佳信压缩机制造有限公司 | Hydraulic connection structure for connecting crosshead body with piston rod |
| CN111590285A (en) * | 2020-04-27 | 2020-08-28 | 咸阳石油化工有限公司 | Method and equipment for disassembling pressure body of piston compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3347167A1 (en) * | 1983-12-27 | 1985-07-04 | Borsig Gmbh, 1000 Berlin | DETACHABLE CONNECTION |
| CN2674183Y (en) * | 2003-12-24 | 2005-01-26 | 沈阳气体压缩机股份有限公司 | Crosshead, hydraulic conjunction and fastening means and piston rod elastic rod structure |
| CN2758526Y (en) * | 2003-12-24 | 2006-02-15 | 沈阳气体压缩机股份有限公司 | Crosshead hydraulic jointing fastener |
| CN201815853U (en) * | 2010-09-26 | 2011-05-04 | 安徽晋煤中能化工股份有限公司 | Device for disassembling and assembling crosshead of compressor |
| CN202639815U (en) * | 2012-07-24 | 2013-01-02 | 中国有色(沈阳)泵业有限公司 | Hydraulic tightening and detaching tool for crosshead nut |
| CN203717295U (en) * | 2014-01-24 | 2014-07-16 | 上海华林工业气体有限公司 | Non-destructive disassembly hydraulic nut |
-
2014
- 2014-01-24 CN CN201410033833.8A patent/CN104806483A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3347167A1 (en) * | 1983-12-27 | 1985-07-04 | Borsig Gmbh, 1000 Berlin | DETACHABLE CONNECTION |
| CN2674183Y (en) * | 2003-12-24 | 2005-01-26 | 沈阳气体压缩机股份有限公司 | Crosshead, hydraulic conjunction and fastening means and piston rod elastic rod structure |
| CN2758526Y (en) * | 2003-12-24 | 2006-02-15 | 沈阳气体压缩机股份有限公司 | Crosshead hydraulic jointing fastener |
| CN201815853U (en) * | 2010-09-26 | 2011-05-04 | 安徽晋煤中能化工股份有限公司 | Device for disassembling and assembling crosshead of compressor |
| CN202639815U (en) * | 2012-07-24 | 2013-01-02 | 中国有色(沈阳)泵业有限公司 | Hydraulic tightening and detaching tool for crosshead nut |
| CN203717295U (en) * | 2014-01-24 | 2014-07-16 | 上海华林工业气体有限公司 | Non-destructive disassembly hydraulic nut |
Non-Patent Citations (2)
| Title |
|---|
| 李长军: "弹性活塞杆压力体装拆的技术对策", 《压缩机技术》 * |
| 赵月刚等: "活塞式压缩机检修中的关键环节小结", 《化工设计通讯》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971853A (en) * | 2016-07-14 | 2016-09-28 | 沈阳佳信压缩机制造有限公司 | Hydraulic connection structure for connecting crosshead body with piston rod |
| CN105971853B (en) * | 2016-07-14 | 2017-11-17 | 沈阳佳信压缩机制造有限公司 | The hydraulic connecting structure that crosshead body is connected with piston rod |
| CN111590285A (en) * | 2020-04-27 | 2020-08-28 | 咸阳石油化工有限公司 | Method and equipment for disassembling pressure body of piston compressor |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |