CN105458991A - Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler - Google Patents
Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler Download PDFInfo
- Publication number
- CN105458991A CN105458991A CN201610055077.8A CN201610055077A CN105458991A CN 105458991 A CN105458991 A CN 105458991A CN 201610055077 A CN201610055077 A CN 201610055077A CN 105458991 A CN105458991 A CN 105458991A
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- CN
- China
- Prior art keywords
- bolt
- steam turbine
- template
- bearing ring
- coupling
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B29/00—Accessories
- B25B29/02—Bolt tensioners
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention discloses a non-destructive disassembling tool for a connecting bolt of a steam turbine rotor coupler. The non-destructive disassembling tool comprises a pi-type plate, a force bearing ring, supporting plates and a set of cushion blocks, before being used, the pi-type plate, the force bearing ring and the supporting plates in the device are assembled and welded into a whole in advance, and the whole is treated in a surface quenching mode to improve the overall strength; it is required that the depth of a middle pi-type frame of the pi-type plate is larger than or equal to the nut height of the 20 mm coupler bolt, the supporting plates are arranged on the upper portion of a bottom plate of the pi-type plate in a sleeving mode and fixedly welded, the force bearing ring is welded to an opening of the middle pi-type frame of the pi-type plate, a through hole through which the coupler bolt penetrates is formed in the middle of the force bearing ring, and a set of jacks is symmetrically arranged between the supporting plates and the steam turbine coupler. The designed non-destructive disassembling tool for the connecting bolt of the steam turbine rotor coupler is simple in structure, safe, reliable and convenient to install and use, can disassemble the bolt of the steam turbine coupler in a non-destructive mode while relieving the labor intensity and shortening the overhauling duration, saves overhauling cost and has high practical value.
Description
Technical field
The present invention relates to the extracting tool field of turbine body maintenance rotor connecting bolt of coupling in Turbo-generator Set, be specially a kind of nondestructive demounting to bolt, nut, reach the object steam turbine coupling connecting bolt nondestructive demounting instrument saved the cost of overhaul, shorten maintenance duration.
Background technology
Now, in all Turbo-generator Set between each rotor of shafting of main engine, adopt shaft coupling to carry out being rigidly connected of bolt entirely, between these bolt and coupler holes, fit clearance only has 0.04---0.08mm, in unit longtime running: one, very large shear stress will be born, gap is caused to disappear; Two, due to the speed running that unit is at 3000 revs/min, the air blast heat that shaft coupling position produces, can make the lubricating oil of periphery produce atomizating phenomenon, exacerbate the disappearance of fit clearance further; Finally, when unit maintenance dismounting couplers bolt, because tight power is excessive, dismantle very difficult, particularly between generator amature and low pressure rotor, length has the connecting bolt of the shaft coupling of about 1000mm, time-consuming especially.
Steam turbine rotor coupling device Bolt dismantling method traditional at present has three kinds: the first is that this method is only adapted to the larger indivedual bolts in gap with from one end to the other side coordinating sledgehammer to pound out by red copper bar; The second be on former nut between weld force-bearing piece, eject by jack; The third is in the helpless situation of first two method, by magnetic drill from a drilling dismounting gradually; Latter two method described in the prior art all can damage former bolt, a kind of especially last method; Current market bore a bolts expense the chances are 10,000 yuans, and need about four days time, it is a kind of processing mode of doing something against one's will, this method is not only take out the one destructiveness of original accessory, also considerably increases simultaneously and takes out the expense cost time cost a large amount of with waste.
Therefore, provide one can realize dismantling steam turbine rotor coupling device connecting bolt fast, and the extracting tool that its unloading process can not damage damaging property of bolt, be a good problem to study.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of steam turbine coupling connecting bolt nondestructive demounting instrument, solving time-consuming in steam turbine coupling connecting bolt unloading process in the past, to increase cost of overhaul problem.
In order to solve the problems of the technologies described above, the present invention is achieved through the following technical solutions:
A kind of steam turbine rotor coupling device connecting bolt nondestructive demounting instrument, comprise π template 1, force bearing ring 2, gripper shoe 3 and one group of cushion block 4, in described device, π template 1, force bearing ring 2 and gripper shoe 3 are before the use, assembly welding to be carried out in advance and become an entirety, then entirety carries out surface hardening process, to increase its bulk strength; Nut 5 height of described π template 1 middle Π type frame depth requirements >=20mm coupling bolt 6; Be welded and fixed above the base plate that gripper shoe 3 is placed on π template 1; Described force bearing ring 2 is welded in the opening part of π template 1 middle Π type frame, and the through hole of coupling bolt 6 is worn in centre in being provided with; One group of jack is symmetrically arranged with between described gripper shoe 3 and steam turbine coupling 7; One group of cushion block 4 is set between described jack and steam turbine coupling 7;
Because gripper shoe 3 only plays a support jack effect, only can be subject to larger compression, and do not bear larger tension in using, when welding, π template can not reconditioning groove, direct downhand welding;
The force bearing ring of described technical scheme will produce very large tensile stress, and before welding with π template, reconditioning goes out to have enough grooves;
Described cushion block is be processed into one group some pieces that thickness do not wait, with to tackle in work progress hydraulic jack stroke to the end time lengthen and use;
Described cushion block is one group, and two jack be arranged on one group of two cushion block are hydraulic jack,
Two hydraulic jack adopt the one-drawing-two type jack of a hydraulic pump band two jack heads.
The using method of described steam turbine rotor coupling device bolt nondestructive demounting instrument, its concrete steps are as follows:
Suitable force bearing ring 2 is matched according to the nominal diameter of different rotor of turbogenerator set connecting bolt of coupling 6, and it is welded with π template 1, π template 1 carries out welding combination to gripper shoe 3 simultaneously, then rotor of turbogenerator set shaft coupling 7 connecting bolt two end nut is dismantled, steam turbine rotor coupling device bolt nondestructive demounting instrument after combination is set to one end that coupling bolt 6 is easy to take out, and the nut 5 of this end is assembled to π template 1, force bearing ring 2 welds in the Π shape frame of rear composition, clamp nut 5 makes it compress force bearing ring 2, then hydraulic jack 8 is dragged by a liquid two to put between gripper shoe 3 and rotor of turbogenerator set shaft coupling 7 end face, straightening is all played to progressively being taken out by coupling bolt in both sides, between jack and rotor of turbogenerator set shaft coupling 7, be provided with one group of cushion block 4, play the effect shortening jack stand hydraulic stroke.
positive beneficial effect:1) the steam turbine rotor coupling device connecting bolt nondestructive demounting instrument of the present invention's design, can highly effective and safe carry out coupling bolt field-strip, the traditional work time is had and within about four days, foreshortens to one day, simultaneously also reduce labour intensity.This bolt nondestructive demounting tool construction of the present invention's design is simple, combined and instant, and flexibly, all Turbo-generator Set all can be general in collocation.
2) the steam turbine rotor coupling device connecting bolt nondestructive demounting instrument of the present invention's design, the nondestructive demounting of connecting bolt of coupling, nut can be realized, thus decrease the counterweight work (Turbo-generator Set main frame shaft coupling symmetric position two connecting bolts require weight difference <10g/ cover) after the dismounting of bolt destruction, engineering repair quality can be promoted, reduce the cost of overhaul.
3) the steam turbine rotor coupling device connecting bolt nondestructive demounting instrument of the present invention's design, can be used in the dismounting of current all Turbo-generator Set main frame connecting bolt of couplings.From service condition, the operation intensity of operating personnel can be reduced, reduce the activity duration, increase work efficiency, there is very high practicality and economy.
Accompanying drawing explanation
Structural representation when Fig. 1 is use of the present invention;
Fig. 2 is π shaping plate structure schematic diagram of the present invention;
Fig. 3 is force bearing ring structure schematic diagram of the present invention;
Fig. 4 is supporting plate structure schematic diagram of the present invention;
Fig. 5 is some cushion block structure schematic diagrames of the present invention;
In figure be: π template 1, force bearing ring 2, gripper shoe 3, one group of cushion block 4, nut 5, coupling bolt 6, rotor of turbogenerator set shaft coupling 7, jack 8.
Detailed description of the invention
Below in conjunction with drawings and the specific embodiments, the present invention is further illustrated:
embodiment 1
As Figure 1-5, see accompanying drawing, a kind of steam turbine rotor coupling device connecting bolt nondestructive demounting instrument, comprise π template (1), force bearing ring (2), gripper shoe (3) and one group of cushion block (4), and in described device π template, cushion block and force bearing ring be before the use, will become an entirety by assembly welding in advance, then entirety carries out surface hardening process, to increase its bulk strength.
Illustrate the using method of the present embodiment below: first removed by steam turbine rotor coupling device bolt 6 liang of end nuts 5, coupling bolt nondestructive demounting instrument after welding combination is installed to the side that bolt 6 prepares to take out, advance simultaneously inwards at combination tool, the nut 5 of bolt 6 will be placed in Π type frame that π template and force bearing ring form in advance and following device synchronously screws, until force bearing ring is pressed on the shaft coupling back side, then suitable one drag two hydraulic jack is chosen according to the spacing between π template and the shaft coupling back side, evenly play pressure just can realize bolt 6 harmless object of removing from coupler hole.
embodiment 2
The present embodiment adds manpower and assists on the basis of embodiment 1, for tight power excessive steam turbine rotor coupling device bolt, the strength depending merely on hydraulic jack in embodiment 1 is not enough to liftout bolt, now can not resist stubbornly, in order to avoid damage jack, under hydraulic jack stressing conditions, with red copper bar percussion vibration nuts and bolt afterbody, just should can remove bolt smoothly.
embodiment 3
The present embodiment is further optimized on the basis of embodiment 1 or embodiment 2, embodiment 1 and embodiment 2 all can be implemented smoothly for the shorter turbine high-pressure rotor of coupling bolt and middle pressure rotor coupling bolt, but the low pressure rotor longer for coupling bolt and generator amature shaft coupling, due to the restriction of hydraulic jack stroke, bolt all can not be taken out.
To be about to arrive in limited time at hydraulic jack stroke in this enforcement, carry out pressure release, to the spacing at shaft coupling back after all resetting according to hydraulic jack top ends again, choose the cushion block (4) of suitable thickness, again pressure is played, and so forth, notice that each cushion block will keep vertical with jack, prevent rise press through cushion block landing in journey.
The present invention has the following advantages: 1) the steam turbine rotor coupling device connecting bolt nondestructive demounting instrument of the present invention's design, can highly effective and safe carry out coupling bolt field-strip, the traditional work time is had and within about four days, foreshortens to one day, also reduce labour intensity simultaneously.This bolt nondestructive demounting tool construction of the present invention's design is simple, combined and instant, and flexibly, all Turbo-generator Set all can be general in collocation.
2) the steam turbine rotor coupling device connecting bolt nondestructive demounting instrument of the present invention's design, the nondestructive demounting of connecting bolt of coupling, nut can be realized, thus decrease the counterweight work (Turbo-generator Set main frame shaft coupling symmetric position two connecting bolts require weight difference <10g/ cover) after the dismounting of bolt destruction, engineering repair quality can be promoted, reduce the cost of overhaul.
3) the steam turbine rotor coupling device connecting bolt nondestructive demounting instrument of the present invention's design, can be used in the dismounting of current all Turbo-generator Set main frame connecting bolt of couplings.From service condition, the operation intensity of operating personnel can be reduced, reduce the activity duration, increase work efficiency, there is very high practicality and economy.
Above case study on implementation is only for illustration of the preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; in the ken that described exercising ordinary skill possesses; the any amendment done within the spirit and principles in the present invention, equivalent to substitute and improvement etc., the protection domain of the application all should be considered as.
Claims (5)
1. a steam turbine rotor coupling device connecting bolt nondestructive demounting instrument, comprise π template (1), force bearing ring (2), gripper shoe (3) and one group of cushion block (4), it is characterized in that: in described device, π template (1), force bearing ring (2) and gripper shoe (3) are before the use, assembly welding to be carried out in advance and become an entirety, then entirety carries out surface hardening process, to increase its bulk strength; In the middle of described π template (1), the nut (5) of Π type frame depth requirements >=20mm coupling bolt (6) highly; Be welded and fixed above the base plate that gripper shoe (3) is placed on π template (1); Described force bearing ring (2) is welded in the opening part of Π type frame in the middle of π template (1), and the through hole of coupling bolt 6 is worn in centre in being provided with; One group of jack is symmetrically arranged with between described gripper shoe (3) and steam turbine coupling (7); One group of cushion block (4) is set between described jack and steam turbine coupling (7).
2. steam turbine rotor coupling device bolt nondestructive demounting instrument according to claim 1, is characterized in that: described π template (1), gripper shoe (3) when Combination Welding, π template (1) not reconditioning groove, direct downhand welding.
3. steam turbine rotor coupling device bolt nondestructive demounting instrument according to claim 1, it is characterized in that: described π template (1), force bearing ring (2) are when Combination Welding, owing to needing to bear very large tensile stress in force bearing ring (2) use, therefore before welding, the welding portion of π template (1) wants reconditioning to go out enough grooves.
4. steam turbine rotor coupling device bolt nondestructive demounting instrument according to claim 1, is characterized in that: the diameter of bore of described force bearing ring (2), in concrete practical operation, suitably will adjust according to the coupling bolt outside dimension of different type of machines.
5. the using method of steam turbine rotor coupling device bolt nondestructive demounting instrument as claimed in claim 1, its concrete steps are as follows:
Suitable force bearing ring (2) is matched according to the nominal diameter of different rotor of turbogenerator set connecting bolt of coupling (6), and it is welded with π template (1), π template (1) carries out welding combination to gripper shoe (3) simultaneously, then rotor of turbogenerator set shaft coupling (7) connecting bolt two end nut is dismantled, steam turbine rotor coupling device bolt nondestructive demounting instrument after combination is set to one end that coupling bolt (6) is easy to take out, and the nut (5) of this end is assembled to π template (1), in the Π shape frame formed after force bearing ring (2) welding, clamp nut (5) makes it compress force bearing ring (2), then hydraulic jack (8) is dragged by a liquid two to put between gripper shoe (3) and rotor of turbogenerator set shaft coupling (7) end face, straightening is all played to progressively being taken out by coupling bolt in both sides, between jack and rotor of turbogenerator set shaft coupling (7), be provided with one group of cushion block (4), play the effect shortening jack stand hydraulic stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610055077.8A CN105458991A (en) | 2016-01-27 | 2016-01-27 | Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610055077.8A CN105458991A (en) | 2016-01-27 | 2016-01-27 | Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105458991A true CN105458991A (en) | 2016-04-06 |
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ID=55597377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610055077.8A Pending CN105458991A (en) | 2016-01-27 | 2016-01-27 | Non-destructive disassembling tool for connecting bolt of steam turbine rotor coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105458991A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747322A (en) * | 2018-06-01 | 2018-11-06 | 中国重汽集团济南动力有限公司 | A kind of lossless installation tool and mounting process of wheel bolt |
| CN112720356A (en) * | 2021-01-09 | 2021-04-30 | 河北邯峰发电有限责任公司 | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129931A (en) * | 1977-01-27 | 1978-12-19 | Jeffboat, Incorporated | Removal of propellers from tapered shafts |
| US4283827A (en) * | 1979-09-04 | 1981-08-18 | Abel Oliver R | Tool for removing axle spindles |
| JPS5730060Y2 (en) * | 1978-05-10 | 1982-07-01 | ||
| CN201158023Y (en) * | 2008-01-29 | 2008-12-03 | 周琪 | Shaft coupling bolt relieving attachment |
| CN201304632Y (en) * | 2008-12-07 | 2009-09-09 | 青海华鼎重型机床有限责任公司 | Special working piece for detaching a main shaft of a tailstock on a lathe |
| CN201329494Y (en) * | 2008-12-31 | 2009-10-21 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Shaft joint bolt extractor |
| CN201573173U (en) * | 2009-12-03 | 2010-09-08 | 邵伟 | Coupling bolt disassembly-assembly apparatus of steam turbine |
| CN203792265U (en) * | 2013-12-09 | 2014-08-27 | 浙江浙能嘉兴发电有限公司 | Dismounting device of turbine coupling bolt |
| CN204339254U (en) * | 2014-11-26 | 2015-05-20 | 中国石油天然气股份有限公司 | Tool for detaching valve seat of plunger pump valve |
| CN204621968U (en) * | 2015-04-07 | 2015-09-09 | 马钢(集团)控股有限公司 | A kind of dismantling device for shaft coupling fitting-up bolt |
-
2016
- 2016-01-27 CN CN201610055077.8A patent/CN105458991A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4129931A (en) * | 1977-01-27 | 1978-12-19 | Jeffboat, Incorporated | Removal of propellers from tapered shafts |
| JPS5730060Y2 (en) * | 1978-05-10 | 1982-07-01 | ||
| US4283827A (en) * | 1979-09-04 | 1981-08-18 | Abel Oliver R | Tool for removing axle spindles |
| CN201158023Y (en) * | 2008-01-29 | 2008-12-03 | 周琪 | Shaft coupling bolt relieving attachment |
| CN201304632Y (en) * | 2008-12-07 | 2009-09-09 | 青海华鼎重型机床有限责任公司 | Special working piece for detaching a main shaft of a tailstock on a lathe |
| CN201329494Y (en) * | 2008-12-31 | 2009-10-21 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Shaft joint bolt extractor |
| CN201573173U (en) * | 2009-12-03 | 2010-09-08 | 邵伟 | Coupling bolt disassembly-assembly apparatus of steam turbine |
| CN203792265U (en) * | 2013-12-09 | 2014-08-27 | 浙江浙能嘉兴发电有限公司 | Dismounting device of turbine coupling bolt |
| CN204339254U (en) * | 2014-11-26 | 2015-05-20 | 中国石油天然气股份有限公司 | Tool for detaching valve seat of plunger pump valve |
| CN204621968U (en) * | 2015-04-07 | 2015-09-09 | 马钢(集团)控股有限公司 | A kind of dismantling device for shaft coupling fitting-up bolt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747322A (en) * | 2018-06-01 | 2018-11-06 | 中国重汽集团济南动力有限公司 | A kind of lossless installation tool and mounting process of wheel bolt |
| CN112720356A (en) * | 2021-01-09 | 2021-04-30 | 河北邯峰发电有限责任公司 | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling |
| CN112720356B (en) * | 2021-01-09 | 2022-05-27 | 河北邯峰发电有限责任公司 | Nondestructive dismounting tool for connecting bolt of steam turbine rotor coupling |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |
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| RJ01 | Rejection of invention patent application after publication |