CN106925977A - A kind of hydraulic power pump core-pulling device and method - Google Patents
A kind of hydraulic power pump core-pulling device and method Download PDFInfo
- Publication number
- CN106925977A CN106925977A CN201511023360.4A CN201511023360A CN106925977A CN 106925977 A CN106925977 A CN 106925977A CN 201511023360 A CN201511023360 A CN 201511023360A CN 106925977 A CN106925977 A CN 106925977A
- Authority
- CN
- China
- Prior art keywords
- steel channel
- channel beam
- core
- hydraulic power
- screw rod
- 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
- 238000000034 method Methods 0.000 title claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 34
- 239000010959 steel Substances 0.000 claims abstract description 34
- 239000002184 metal Substances 0.000 claims description 2
- 230000003111 delayed effect Effects 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
Abstract
The invention belongs to nuclear power station service technique field, and in particular to a kind of hydraulic power pump core-pulling device and core pulling method；The purpose of the present invention is, it is not enough for prior art, there is provided a kind of structure simple with principle, the unfavorable factor such as core bag crank, deflection when can effectively solve the problem that lifting is prevented effectively from hydraulic power pump core-pulling device and core pulling method that the pump housing and other parts sustain damage；Including steel channel beam (1), screw rod (2), nut (3) and plain presser (4), wherein described (1) two section of lower section of steel channel beam is respectively welded with a cylindrical support leg, two screws are provided between two cylindrical support legs of the steel channel beam (1), two pieces of screw rods (2) are through through hole, the upper end of screw rod (2) is tightened against on the upper surface of steel channel beam (1) by nut (3), and a plain presser (4) is provided between the nut (3) and steel channel beam (1) trade mark face.
Description
Technical field
The invention belongs to nuclear power station service technique field, and in particular to a kind of hydraulic power pump core-pulling device and core pulling method.
Background technology
Two units of nuclear power station first stage of the project are respectively configured with a hydraulic power pump for same model, and a hoisting beam is designed with directly over the model pump, and chain block is hung when being repaired for hydraulic power pump carries out core pulling work.Because chain block can be only formed a lifting point, it is difficult to aligned with core bag center, easily the unfavorable factors such as crank, core bag deflection are produced during lifting, the problem for causing the big lid metal o-ring of core bag to pull pump housing endophragm, later stage treatment is more bothered.
The content of the invention
The purpose of the present invention is, it is not enough for prior art, there is provided a kind of structure simple with principle, the unfavorable factor such as core bag crank, deflection when can effectively solve the problem that lifting is prevented effectively from hydraulic power pump core-pulling device and core pulling method that the pump housing and other parts sustain damage.
The technical scheme is that：
A kind of hydraulic power pump core-pulling device, including steel channel beam, screw rod, nut and plain presser, wherein described two sections of lower sections of steel channel beam are respectively welded with a cylindrical support leg, two screws are provided between two cylindrical support legs of the steel channel beam, two pieces of screw rods pass through through hole, the upper end of screw rod, on the upper surface of steel channel beam, is provided with a plain presser by nut screwing clamping between the nut and steel channel beam trade mark face.
The upper and lower side of the screw rod is different screw threads, and threaded upper ends are the screw thread matched with nut, and the lower end screw thread is to wrap portion tegillum fine thread hole screw thread with hydraulic drive pump core to be adapted.
A kind of hydraulic power pump core pulling method, is realized based on described hydraulic power pump core pulling, is comprised the following steps：
Step one, the mother nut and kingbolt that will fasten big lid is pulled down, then the big lid of hydraulic power pump is hung out；
Step 2, symmetrical dismounting four nuts and screw rod of fastening top tegillum；
Step 3, individual steel channel beam is placed in the upper plane of the pump housing, and the cylindrical support leg bottom surface of steel channel beam is fitted with the upper plane of the pump housing, and the through hole of steel channel beam is located at directly over the screwed hole of dismantling screw；
Step 4, by four screw rods respectively with one heart by a pair of four through holes of steel channel beam, and by the fine thread of screw rod all the fine thread hole of screw-in top tegillum；
The beneficial effects of the invention are as follows：
1st, a kind of hydraulic power pump core-pulling device of the invention and method structure and principle are simply, easy to use；
2nd, a kind of hydraulic power pump core-pulling device of the invention and method can effectively solve the problem that the difficult problem of core pulling bag, and time saving, laborsaving, high working efficiency；
3rd, a kind of hydraulic power pump core-pulling device of the invention and method will not cause to damage to the pump housing and other parts.
Brief description of the drawings
Fig. 1 is a kind of hydraulic power pump core-pulling device schematic diagram provided by the present invention；
Fig. 2 is hydraulic power pump upper surface schematic diagram；
Fig. 3 is a kind of hydraulic power pump core-pulling device assembling schematic diagram.
In figure：1. steel channel beam, 2. screw rod, 3. nut, 4. flat shim, 5. hanger, 6. top tegillum, 7. core bag, the 8. pump housing.
Specific embodiment
A kind of hydraulic power pump core-pulling device proposed by the present invention and core pulling method are further introduced with embodiment below in conjunction with the accompanying drawings：
A kind of hydraulic power pump core-pulling device, including steel channel beam 1, screw rod 2, nut 3 and plain presser 4, wherein described 1 two sections of lower sections of steel channel beam are respectively welded with a cylindrical support leg, two screws are provided between two cylindrical support legs of the steel channel beam 1, two pieces of screw rods 2 pass through through hole, the upper end of screw rod 2 is tightened against on the upper surface of steel channel beam 1 by nut 3, and a plain presser 4 is provided between the nut 3 and the trade mark face of steel channel beam 1.
The upper and lower side of the screw rod 2 is different screw threads, and threaded upper ends are the screw thread matched with nut 3, and the lower end screw thread is to wrap the fine thread hole screw thread of portion's tegillum 6 with hydraulic drive pump core to be adapted.
A kind of hydraulic power pump core pulling method, is realized based on described hydraulic power pump core pulling, is comprised the following steps：
Step one, the mother nut and kingbolt that will fasten big lid is pulled down, then the big lid of hydraulic power pump is hung out；
Step 2, the nut 3 and screw rod 2 of four fastening top tegillums 6 of symmetrical dismounting；
Step 3,2 steel channel beams 1 are placed in the upper plane of the pump housing 8, and the cylindrical support leg bottom surface of steel channel beam 1 is fitted with the upper plane of the pump housing 8, and the through hole of steel channel beam 1 is located at directly over the screwed hole of dismantling screw 2；
Step 4, by four screw rods 2 respectively with one heart by a pair of four through holes of steel channel beam 1, and by the fine thread of screw rod 2 all the fine thread hole of screw-in top tegillum 6.
Claims (3)
1. a kind of hydraulic power pump core-pulling device, it is characterised in that：Including steel channel beam (1),
Screw rod (2), nut (3) and plain presser (4), wherein (1) two section of lower section of the steel channel beam
Respectively be welded with a cylindrical support leg, two cylindrical support legs of the steel channel beam (1) it
Between be provided with two screws, two pieces of screw rods (2) pass through spiral shell through through hole, the upper end of screw rod (2)
Female (3) are tightened against on the upper surface of steel channel beam (1), the nut (3) and steel channel beam (1)
A plain presser (4) is provided between trade mark face.
2. a kind of hydraulic power pump core-pulling device as claimed in claim 1, it is characterised in that：
The upper and lower side of the screw rod (2) is different screw threads, and threaded upper ends are to match with nut (3)
Screw thread, the lower end screw thread is to wrap portion's tegillum (6) fine thread with hydraulic drive pump core
Hole screw thread is adapted.
3. a kind of hydraulic power pump core pulling method, based on the hydraulic power pump described in claim 1
Core pulling is realized, it is characterised in that：Comprise the following steps：
Step one, the mother nut and kingbolt that will fasten big lid is pulled down, then hydraulic power pump is big
Lid hangs out；
Step 2, four nuts (3) of fastening top tegillum (6) of symmetrical dismounting and screw rod (2)；
Step 3, (2) individual steel channel beam (1) is placed in the upper plane of the pump housing (8), groove
The cylindrical support leg bottom surface of girder steel (1) is fitted with the upper plane of the pump housing (8), steel channel beam (1)
Through hole be located at dismantling screw (2) screwed hole directly over；
Step 4, by four screw rods (2) respectively with one heart by a pair of four of steel channel beam (1)
Through hole, and the fine thread of screw rod (2) is all screwed in the fine thread of top tegillum (6)
In hole；
Four flat shims (4) are loaded screw rod (2) top by step 5 with one heart, make flat shim
(4) bottom surface is fitted with plane on steel channel beam (1)；
Step 6, four nuts (3) are screwed in screw rod (2) top coarse thread respectively, are made
Fitted with plane on flat shim (4) nut (3) bottom surface；
Step 7, sets up suspension centre on hoisting beam directly over the pump housing (8), hangs a load
It is two tons of chain block, then by chain block, gently band is tight；
Step 8, symmetrically and evenly fastens four nuts (3), and core bag (7) is delayed from pump chamber
It is slow to extract out, put down on the pump housing (8) when the metal packing washer of core bag (7) excircle is all spilt
Behind face, chain block is tensed, remove core-pulling device, then core bag is integrally extracted out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023360.4A CN106925977A (en) | 2015-12-30 | 2015-12-30 | A kind of hydraulic power pump core-pulling device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023360.4A CN106925977A (en) | 2015-12-30 | 2015-12-30 | A kind of hydraulic power pump core-pulling device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106925977A true CN106925977A (en) | 2017-07-07 |
Family
ID=59440995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511023360.4A Pending CN106925977A (en) | 2015-12-30 | 2015-12-30 | A kind of hydraulic power pump core-pulling device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106925977A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030539Y (en) * | 2007-03-08 | 2008-03-05 | 朱来麒 | Water injection pump head components removing device |
| CN202716223U (en) * | 2012-04-25 | 2013-02-06 | 中国石油天然气股份有限公司 | Drilling and pulling device for packing of water injection pump |
| CN202742332U (en) * | 2012-08-13 | 2013-02-20 | 中国石油天然气股份有限公司 | Quick removal tool for compressor air valve |
| CN203532342U (en) * | 2013-09-23 | 2014-04-09 | 长沙佳能通用泵业有限公司 | Device for dismounting guide vane of multiple-stage centrifugal pump |
| CN104647274A (en) * | 2013-11-21 | 2015-05-27 | 南车洛阳机车有限公司 | Oil pump gear dismounting device of diesel engine |
| CN204748506U (en) * | 2015-07-16 | 2015-11-11 | 南车洛阳机车有限公司 | Diesel engine pneumatic valve seat and mistake wheel bearing and round pin shaftbushing dismounting device |
| CN205465083U (en) * | 2015-12-31 | 2016-08-17 | 江苏核电有限公司 | Hydraulic power pump device of loosing core |
-
2015
- 2015-12-30 CN CN201511023360.4A patent/CN106925977A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201030539Y (en) * | 2007-03-08 | 2008-03-05 | 朱来麒 | Water injection pump head components removing device |
| CN202716223U (en) * | 2012-04-25 | 2013-02-06 | 中国石油天然气股份有限公司 | Drilling and pulling device for packing of water injection pump |
| CN202742332U (en) * | 2012-08-13 | 2013-02-20 | 中国石油天然气股份有限公司 | Quick removal tool for compressor air valve |
| CN203532342U (en) * | 2013-09-23 | 2014-04-09 | 长沙佳能通用泵业有限公司 | Device for dismounting guide vane of multiple-stage centrifugal pump |
| CN104647274A (en) * | 2013-11-21 | 2015-05-27 | 南车洛阳机车有限公司 | Oil pump gear dismounting device of diesel engine |
| CN204748506U (en) * | 2015-07-16 | 2015-11-11 | 南车洛阳机车有限公司 | Diesel engine pneumatic valve seat and mistake wheel bearing and round pin shaftbushing dismounting device |
| CN205465083U (en) * | 2015-12-31 | 2016-08-17 | 江苏核电有限公司 | Hydraulic power pump device of loosing core |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170707 |
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| RJ01 | Rejection of invention patent application after publication |