CN103597169B - For form fit is remained on the equipment and method that blade in wheel disc releases - Google Patents
For form fit is remained on the equipment and method that blade in wheel disc releases Download PDFInfo
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- CN103597169B CN103597169B CN201180071521.0A CN201180071521A CN103597169B CN 103597169 B CN103597169 B CN 103597169B CN 201180071521 A CN201180071521 A CN 201180071521A CN 103597169 B CN103597169 B CN 103597169B
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- Prior art keywords
- release
- blade
- equipment
- unit
- precompression
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/005—Repairing methods or devices
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- 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
-
- 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
- B23P19/025—For detaching only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
- F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/70—Disassembly methods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2230/00—Manufacture
- F05D2230/80—Repairing, retrofitting or upgrading methods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to the release equipment that a kind of blade, especially compressor blade for remaining in the mode of form fit on wheel disc is released, described release equipment comprises: frame; Rotating platform, especially up-down rotary display stand; And remain on frame having the impact unit of beater mechanism released drift and be applied to it.
Description
Technical field
The present invention relates to for form fit is remained on a kind of equipment and a kind of method that blade in wheel disc, especially compressor blade release.
Background technique
In gas turbine or steam turbine, be arranged on compressor blade on compressor wheel disc through frayed, therefore described compressor blade during checking must be changed after specific operating intervals.To this, first compressor wheel disc is pulled down from turbine, and then usually immediately compressor blade removed and replace with new compressor blade.
Compressor blade via be configured to swallow-tailed blade root with the mode of form fit remain on correspondingly be shaped and in the groove formed in compressor wheel disc.Locking compressor blade realizes via locking plate or via two locking projections punching presses to resist moving axially in corresponding groove on the end of each groove.
Compressor blade is taken apart so far releasing and carry out manually from compressor wheel disc in the scope that gas turbine or steam turbine are checked.To this, the compressor wheel disc of dismounting is first flatly kept flat on base with wheel hub.Subsequently, blade is released by means of brass bolt and corresponding hammering by each two workmans successively.At this, a workman catches the brass bolt of usual wiper winding and is placed on blade root.Second workman 5kg or 10kg sledgehammer heavily impacts on brass bolt.According to the excessive and running time in the coupling of blade root size and blade height and turbine, the impact between 20 times and 50 times is needed to be released by blade.The body burden of workman and risk of injury are high.When manually releasing, compressor wheels dish also can be easily damaged.
If blade can not be released by described method, so blade is amputated after blade root.Subsequently, from outside side mill, compensating groove must be milled into each blade root of compressor wheel disc, finally blade can be released.Because suitable milling machine does not usually neither nearby around exist in power station, also, so usually occur the transportation route of the length of compressor wheel disc round transport.Thus, extend the endurance of inspection, this is associated with corresponding cost.In addition, resetting of gas turbine or steam turbine has been postponed.
After being released by compressor blade, described compressor blade must be replaced by new compressor blade.Described new compressor blade also must lock onto in the groove of association and move axially with opposing, and this is carried out on the downside and upside of blade root by each locking projections punching press.To this, use with the independent SPECIAL MACHINE of the form of the punching equipment of movement at present, described punching equipment must be transported to corresponding job site.
Summary of the invention
Based on described prior art; the object of the invention is to; a kind of release equipment released for the blade that will remain in the mode of form fit on wheel disc of alternative and a kind of pushing method of corresponding alternative are proposed; wherein especially reduce the body burden of workman, equally also reduce accident hazard; dead time for the time consumption released and cost consumption and gas turbine or steam turbine is little; the quantity performing the machine required for checking is few, and the transport of the machine released and upgrade required for blade can easily perform immediately.
In order to realize described object, the present invention proposes a kind of for form fit is remained on the release equipment that blade in wheel disc, especially compressor blade release, and comprising: frame; Rotating platform, especially up-down rotary display stand; Remain on and frame having the impact unit of beater mechanism released drift and be applied to it, be provided with clamping unit, described clamping unit forms and is designed to, described clamping unit is supported described wheel disc when being released by described blade, be provided with punching unit, described punching unit is especially integrally configured to clamping-punching unit with described clamping unit.The wheel disc maintaining the blade that will release can correspondingly be installed on a spinstand, and then the release drift of each blade by impact unit can be released successively semi-automatedly or automatically with the beater mechanism be applied to it.Due to release equipment according to the present invention, the health of the workman released by blade does not almost have load or does not have load completely.Compared with manual release, accident hazard is also obviously less.In addition, realize very high procedure quality, the danger wherein damaging compressor wheel disc is minimized.In addition, the blade after by blade root is not needed to amputate or milled away by blade root.In addition, for time consumption that blade is released and cost consumption in use according to being very little when release equipment of the present invention, this is also during checking attended by little dead time and the outage cost of turbo machine.
According to a design proposal of the present invention, impact unit has the precompression cylinder being applied to and releasing on drift, and by described precompression cylinder, releasing drift can with predetermined pressure against the blade pre-pressing that will release.By means of this precompression cylinder, can produce the major part for the power released, described power is applied on blade via release drift.Therefore, such as, precompression can be chosen to, make described precompression be in required release power 70% and 90% between scope in, and the remaining less part releasing power produces via beater mechanism, this can realize the point-device control to pushing method.
Preferably, be provided with at least one operation equipment, via described operation equipment, the frequency of impact of the precompression of precompression cylinder and/or the impact energy of beater mechanism and/or beater mechanism can be regulated by operator, and wherein precompression especially can regulate in the scope between 0bar and 250bar.Correspondingly, workman can regulate parameters as required or mate during push.
According to a design proposal of the present invention, be provided with the sensor of the precompression of equipment control device and at least one detection precompression cylinder, the mode that the precompression detected outputs signal with precompression is sent to equipment control device by described sensor, wherein equipment control device is designed to, and makes described equipment control device can change the impact energy of the precompression of precompression cylinder and/or the impact force of beater mechanism and/or beater mechanism according to the precompression output signal received.In other words, control to the automation of push or adjustment is realized via equipment control device and at least one sensor.
Precompression cylinder is preferably oil hydraulic cylinder.It is especially favourable that this oil hydraulic cylinder has turned out to be.
According to a design proposal of the present invention, precompression cylinder has through piston rod wherein and is arranged on beater mechanism and releases between drift, beater mechanism is applied on a piston rod end, and another piston rod end is applied on release drift.In this way, structure that is especially simple and cost advantages is realized.
Beater mechanism preferably has pneumatic impact cylinder.
According to a design proposal of the present invention, release drift and be swingingly arranged in accommodation head, making to release drift especially can at the both direction upper deflecting transverse to its longitudinal axis.Prevent in this way when side force is applied on release drift, described release drift is damaged.Deflection angle can be monitored during push by means of suitable sensing device.Therefore, such as, for each deflection direction, corresponding sensor setting can held in head.
According to a design proposal of the present invention, the release punch tip be arranged on the free end releasing drift is configured to be rounding, especially hemispheric.The release punch tip of such formation is placed on the root of the blade that will release.Releasing punch tip from blade root slippage to stop during releasing, before push starts, preferably groove being milled in blade root, release punch tip and join to during releasing in described groove.The shape of bottom land is preferably matched with at this shape releasing punch tip, makes the form fit of realization part.
According to the design proposal of an alternative of the present invention, be arranged on release punch tip on the free end releasing drift in order to hold the blade that will release blade neck and be configured to U-shaped or V-arrangement.In this case, release punch tip and be placed on blade neck in order to blade is released, make to release punch tip partly around blade neck.Correspondingly, can cancel form groove on blade root.
Impact unit advantageously via regulation unit can the mode of pivotable remain on rack section.By this regulation unit, impact unit can be most optimally directed relative to the blade that will release.
According to a design proposal of the present invention, release equipment comprises clamping unit, and described clamping unit forms and is designed to, and described clamping unit is supported when releasing blade the wheel disc kept on a spinstand.Clamping unit is mainly used in, and offsets the active force occurred when releasing, to stop compressor wheel disc to slide during releasing.
Clamping unit preferably has regulating device, and described regulating device is configured to, and makes described regulating device can realize clamping unit radial at least one motion of rotating platform.Correspondingly, clamping unit can be used in the wheel disc with different-diameter.
Clamping unit, preferably can the mode of pivotable remain in frame, especially remains on and keeps on rack section, and described maintenance rack section is can the mode of pivotable be fixed in upper stand part.Correspondingly, clamping unit relative to the medial axis of compressor wheel disc in center oriented.
According to a design proposal of the present invention, clamping unit has a bottom and keeps fixture block and one or more top to keep fixture block, described bottom keeps fixture block and top to keep fixture block can be close to each other and move away from each other, especially via screw actuator or oil hydraulic cylinder is close to each other and move away from each other.Correspondingly, compressor wheel disc can be contained in and keep between fixture block.
According to another design proposal of the present invention, release equipment comprises punching unit, and described punching unit is especially configured to be integrated into clamping-punching unit with clamping unit.Punching unit is used for the new blade substituting the blade released to be fixed in wheel disc by means of punching press.Release equipment is configured with this punching unit tool and has the following advantages: do not need special stamping press.Preferably, punch die is integrated into and keeps in fixture block, and this causes very simply and the structure of cost advantages.
According to another design proposal of the present invention, release equipment comprises milling unit.By this milling unit, stamped area at least mostly can be removed before push, the blade can released by described stamped area is fixed on wheel disc.In addition, can be incorporated in the blade root of the blade that will release by groove before execution push by this milling device, described groove be for holding release drift.At this, the shape of groove is preferably substantially corresponding to the shape releasing drift.By this groove, can stop and release drift by mistake from the blade slippage that will release.
Milling unit, preferably remaining in frame via the joint arm of more piece mode of pivotable between working position and off-position, especially remains on and keeps on rack section.Correspondingly, milling unit can inside pivotable or outwards pivotable as required.
Milling unit is advantageously configured to, and described milling unit can be supported on the medial axis of rotating platform in its working position.Due to this additional support, during milling process, realize the extraordinary intensity of milling unit.
Milling unit preferably has the Locking Device of the rotary joint for locking joint arm.Via this Locking Device, milling unit is additionally reinforced during milling process.
Advantageously, milling unit has the movement of at least two milling cutter shifting axles for milling head.
Preferably, be provided with the milling cutter shifting axle of level, location in joint arm joint one of described milling cutter shifting axle, make must the direction of groove of milling all the time through the medial axis of rotating platform.
Preferably, be provided with vertical milling cutter shifting axle, realize adjustment motion via described milling cutter shifting axle.
The driving of milling cutter shifting axle can manually or via corresponding motor be carried out.
According to a design proposal of the present invention, frame has: basic rack section; Lower framework part, described lower framework part remains in basic frame in the mode that can move via linear guide apparatus; Upper stand part, described upper stand part is can pivotable and the mode that can take apart be fixed in lower framework part; Keep rack section, described maintenance rack section is can pivotable and the mode that can take apart remain in lower framework part; And impact unit rack section, described impact unit rack section remains in upper stand part in the mode that can take apart, and wherein basic rack section is preferably divided into each basic framework portion branch section be connected to each other in the mode that can take apart.Frame is divided into each rack section be connected to each other in the mode that can take apart like this and especially has following advantage: release equipment can correspondingly split for transport.In other words, release classification of equipment become each transportation module, described transportation module can simply and conserve space ground transport.
In addition, the present invention proposes a kind of for form fit is remained on the method that blade in wheel disc, especially compressor blade release, and wherein utilizes and releases blade according to release equipment of the present invention.
Preferably, the frequency of impact of the precompression of precompression cylinder and/or the impact energy of beater mechanism and/or beater mechanism changes during release blade, this can manually, semi-automatedly or full automation ground carry out.In other words, described parameter matching is in the corresponding requirement of push.
According to a design proposal of method according to the present invention, the region be stamped of the blade root of the blade that will release just removed by means of milling at least in part, to simplify push before being released by blade.
Advantageously, before release, be milled into recess on the upside of the blade root of the blade that will release, described recess is used as the support mechanism for releasing drift and resists the slippage releasing drift during releasing blade.
Accompanying drawing explanation
By means of hereinafter illustrating additional advantage of the present invention and feature to being described in of release equipment of form of implementation according to the present invention with reference to when appended accompanying drawing.Wherein
Fig. 1 illustrates the three-dimensional side view of the release equipment according to a form of implementation of the present invention, and described release equipment has modular structure;
Fig. 2 illustrates the three-dimensional side view of the first module of release equipment shown in Figure 1;
Fig. 3 illustrates the body portion rear view of the first module shown in figure 2;
Fig. 4 illustrates the three-dimensional side view of the second module of release equipment shown in Figure 1;
Fig. 5 illustrates the body portion rear view of the second module shown in Figure 4;
Fig. 6 illustrates the three-dimensional side view of the 3rd module of release equipment shown in Figure 1, and wherein the 3rd module is arranged in haulage device flatwise;
Fig. 7 illustrates the three-dimensional side view of the 3rd module shown in Figure 6, and described 3rd module is pivoted in stand up position within haulage device;
Fig. 8 illustrates the three-dimensional side view of the 3rd module extracted from haulage device;
Fig. 9 illustrates the stereo bottom view of the 3rd module shown in Figure 8;
Figure 10 illustrates the stereogram of supporting member;
Figure 11 illustrates the body portion side view of the first module, and described first module is provided with supporting member shown in Figure 10.
Figure 12 illustrates the three-dimensional side view of the four module of release equipment shown in Figure 1;
Figure 13 illustrates the four module shown in Figure 12 top perspective view together with milling unit disposed thereon;
Figure 14 illustrates the body portion front elevation of release equipment shown in Figure 1, and wherein milling unit is arranged in its working position; And
Figure 15 illustrates the body portion figure of release equipment shown in Figure 1, and wherein milling unit is arranged in its off-position.
Embodiment
Fig. 1 to 15 illustrates the release equipment 10 according to a form of implementation of the present invention, and described release equipment is used for form fit to remain on blade in wheel disc and release, in particular for being released by compressor blade.Release equipment 10 comprises frame 12, and described frame is divided into multiple rack section.Or rather, frame 12 has: anterior basic rack section 12a; The basic rack section 12b in rear portion that can detachably be connected with the basic rack section in described front portion; Lower framework part 12c, described lower framework part can remain on anterior basic rack section 12a via linear guide apparatus 24 movably; Upper stand part 12d, described upper stand part energy pivotable and being detachably fixed on lower framework part 12c; Keep rack section 12e, described maintenance rack section energy pivotable and detachably remaining on upper stand part 12d; And impact unit rack section 12f, described impact unit rack section can detachably be arranged on upper stand part 12d.Other critical piece of release equipment 10 forms up-down rotary display stand 14, impact unit 16, clamping-punching unit 18, milling unit 20 and switch cubicle 22.
In order to easily transport release equipment, described release equipment is divided into four independent modules A, B, C and D substantially, and these modules can be connected to each other removably, to draw the general structure shown in Figure 1 of release equipment 10.
Fig. 2 and 3 illustrates the first modules A, described first module comprise anterior basic rack section 12a, lower framework part 12c, upper stand part 12d, linear guide apparatus 24 front part, reciprocally remain on lower framework part 12c on linear guide apparatus 24 and up-down rotary display stand 14.
The lower framework part 12c being used as balladeur train manually carries out along the movement of linear guide apparatus 24.Lower framework part 12c can be locked on three positions via latch 26 on anterior basic rack section 12a and the basic rack section 12b in rear portion at this.In this way, lower framework part 12c is divided into three sub-adjustment region along whole adjustment region of linear guide apparatus 24.Therefore, the final location of lower framework part 12c in corresponding sub-adjustment region can be carried out via the trapezoid thread screw be not shown specifically, and described trapezoid thread screw can carry out manually-operable via the handwheel 28 be arranged on the dorsal part of lower framework part 12c.At this, the position indicator be not shown specifically is used as orienting device.Due to described position indicator, the position once measured of lower framework part 12c again can be drawn simply.
As an alternative, lower framework part 12c also can be adjusted by the electromechanics by means of servomotor or three phase current motor or also undertaken by oil hydraulic cylinder along the manual adjustment of linear guide apparatus 24.Corresponding adjustment axle can be equipped with path measurements system.So, corresponding section directly can illustrate via numerical monitor on operation panel.
Lower framework part 12c fixing in working position can be realized by the piston rod clamp device be placed on corresponding piston rod on all axles.
Upper stand part 12d is can remain on lower framework parts 12c around the mode of pivotal axis 37 pivotable.To realize via the oil hydraulic cylinder be not shown specifically and the deadweight be used as all parts remained on upper stand part 12d compensates around the pivot movement of pivotal axis 37.
The side of upper stand part 12d keep transmit device 38, described transmit device as still illustrated in detail hereinafter for holding clamping-punching unit 18 and the pivotable around vertical pivotal axis 32 can being realized.Carry out pivotable current manual.It should be understood that manually adjustment this also can by electromechanics or the adjustment of hydraulic pressure replace.Transmit device 30 forms the guide rail 36 and 38 flatly extended, and described guide rail can realize remaining on clamping-punching unit 18 radial direction on transmit device 30 in the adjustment campaign of up-down rotary display stand 14, as illustrated in more detail hereinafter.
Up-down rotary display stand 14 is for holding compressor wheel disc.Described up-down rotary display stand by being elevated part and rotating part forms, but, described lifting partly and rotating part be not shown specifically in this article.Lifting part has the firm vertical guiding device with oil hydraulic cylinder.Can be compensated the difference in thickness of compressor wheel disc by adjustment oil hydraulic cylinder.In order to make oil hydraulic cylinder can not change its holding position due to the corresponding leakage of seal arrangement when load is more of a specified duration, up-down rotary display stand 14 is equipped with firmly stop ring, and described stop ring stops the slow decline of compressor wheel disc.In order to compressor wheel disc is relative to the accurate fine setting location of the angular orientation of impact unit 16, the accommodating part of up-down rotary display stand is equipped with rotating part.Via described rotating part, compressor wheel disc can be located relative to impact unit 16.As an alternative, the location of compressor wheel disc also can be undertaken by the servo drive be integrated in up-down rotary display stand 14.
In order to basic for front portion rack section 12a can be detachably connected with the basic rack section 12b in rear portion, anterior basic rack section 12a be provided with on its dorsal part hold bolt 40, the coupling portion 42 that is effectively connected with latch 26 and anti-torsion device 44.In addition, form multiple reach through hole 45, described reach through hole for holding screw, basic for front portion rack section 12a and the basic rack section 12b in rear portion is tightened.Via height adjusting screws 46, the Background Region of anterior basic rack section 12a can slightly to upper and move downward, to realize anterior basic matched between rack section 12a and the basic rack section 12b in rear portion when mounted.In addition, be adjacent to be provided with transportation safety device 48 with linear guide apparatus 24, described transportation safety device stops lower framework part 12c to move along linear guide apparatus 24 during transportation module A.
Impact unit rack part 12f to hold and fixing, the upside of upper stand part 12d forms two supporting surfaces essentially horizontally extended, hold bolt 54 or 56 and protrude upward from described supporting surface respectively.In addition, supporting surface is provided with a row reach through hole 58, described reach through hole for holding screw, impact unit rack section 12f is fixedly tightened on upper stand part 12d.
Figure 4 and 5 illustrate the second module B, described second module substantially by rear portion basic rack section 12b, linear guide apparatus 24 be arranged on rear portion on the basic rack section in described rear portion and switch cubicle 22 forms.Operate lever is provided with for operation latch 26 between linear guide apparatus 24 and switch cubicle 22.Operate lever 60 is effectively connected with connecting rod 62, and the free end of described connecting rod is provided with other coupling portion 64, and described other coupling portion can engage with the coupling portion 42 of modules A.In order to the accommodation bolt 40 of holding module A, the front side of the basic rack section 12b in rear portion is provided with receiving bore 65 on a corresponding position.
Fig. 6 to 9 illustrates the 3rd module C, and described 3rd module remains in transmission equipment 66 in figs. 6 and 7.Module C is made up of upper stand part 12d substantially, and impact unit 16 can arcuately remain in described upper stand part pivotally via transmit device 68.
Impact unit 16 is observed from the top down and is comprised the beater mechanism 70 formed by Pneumatic immpacting cylinder, the precompression cylinder 72 formed by oil hydraulic cylinder and release drift 74.Precompression cylinder 72 is included in wherein through piston rod 76, and beater mechanism 70 is applied in the upper free ends portion of described piston rod, wherein releases drift 74 and remains in lower free end portion.Precompression cylinder 72 for by release drift 74 during push with predetermined precompression against the blade pre-pressing that will release, described precompression is current can be regulated by workman via the operation equipment be not shown specifically between 0bar and 250bar.Equally, the impact energy of beater mechanism 70 and frequency of impact manually can change via described operation equipment.
As an alternative, also equipment control device and at least one sensor that the precompression of precompression cylinder 72 is detected can be provided with, the form that the precompression detected during push outputs signal with precompression is sent to equipment control device by described sensor, wherein equipment control device is designed to, and makes described equipment control device change the precompression of precompression cylinder 72 and/or the impact force of beater mechanism 70 and/or impact energy according to the precompression output signal received.In this way, can carry out by releasing adjustment that is that drift 74 is applied to the semi-automation of the power on the blade that will release during push or full-automation.
Release drift 74 to be arranged in the lower free end portion of the piston rod 76 of precompression cylinder 72 via the accommodation head oscillation be not shown specifically, to stop release drift 74 to damage due to the power be laterally applied on it.Release the free end of drift 74 to look in cross-section at present and be configured to V-arrangement, reduce thus to release the danger of drift 74 from the blade slippage that will release.
In order to be fixed on the second module B by the 3rd module C, the downside of impact unit rack section 12f is provided with two supporting surfaces 78 and 80, and the position of described supporting surface is consistent with the position of the supporting surface 50 and 52 of upper stand part 12d.In order to hold the accommodation bolt 54 and 56 of upper stand part 12d, supporting surface 78 and 80 is provided with corresponding receiving bore 82 and 84.In addition, the supporting surface 78 and 80 of impact unit rack section 12f forms reach through hole 86, the position of described reach through hole is consistent with the reach through hole 58 of the supporting surface 50 and 52 of upper stand part 12d.Correspondingly, upper stand part 12d and impact unit rack section 12f can tighten each other.
In order to transport the 3rd module C, what described 3rd module can be as shown in fig. 6 is arranged in haulage device 66 like that.3rd module C is resisted against the rotary joint 90 being respectively equipped with clamp device of haulage device 66 by the bolt 88 aside stretched out from upper stand part 12d at this.The locking of module C in haulage device 66 is carried out additionally by the maintenance support 92 tightened with haulage device 66 removably.
Figure 10 illustrates supporting member 94, and described supporting member is used for supporting milling unit 20 during milling process.Supporting member 94 is arranged on up-down rotary display stand 14, as shown in Figure 11 when first installation via corresponding screw 96.At this, the longitudinal axis of supporting member 94 is aimed at the rotatingshaft of up-down rotary display stand 14.After first installation, supporting member can be retained in the first modules A.
Figure 12 and 13 illustrates four module D, described four module consist essentially of keep rack section 12e, for keeping the dead-weight balanced balladeur train 12f of rack section 12e and clamping-punching unit 18 and milling unit 20, described milling cellular installation is keeping on rack section 12e.
Rack section 12e fixing on upper stand part 12d is kept to carry out on the vertical direction keeping rack section 12e via for dead-weight balanced balladeur train 12g.Balladeur train dorsal part is provided with steering channel 98 and 100 that essentially horizontally extend, stacked on top of each other with certain spacing and toward each other, and described steering channel engages with the guide rail 36 and 38 of the transmit device 30 of upper stand part 12d.Rack section 12e fixing on upper stand part 12d is kept to realize via clamping plate 102.When clamping plate 102 are disassembled, balladeur train 12g radially can move relative to up-down rotary display stand 14 along upper stand part 12d along the direction of guide rail 36 and 38.Be provided with the guide rail 103 vertically extended on front side of balladeur train, keep rack section 12e with can upwards and the mode moved downward remain on described guide rail.
Clamping-punching unit 10 comprises position and remains on the top maintenance fixture block 106 keeping the bottom on rack section 12e to keep fixture block 104 and can move up and down regularly.The motion of top maintenance fixture block 106 is current to be realized by oil hydraulic cylinder, wherein can use screw actuator equally.The punch die be not shown specifically is integrated into and keeps in fixture block 104 and 106.Correspondingly, clamping-punching unit 18 can not only be used for supporting the compressor wheel disc be arranged on up-down rotary display stand 14 and for carrying out punching press to the blade that will retighten in compressor wheel disc.
Milling unit 20 comprises the joint arm 108 of more piece, and wherein a free end of joint arm 108 is fixed on and keeps on rack section 12e and another free end of joint arm 108 is fixed on supporting member 94.Milling head 110 can move via two shifting axles.More precisely, arrange the shifting axle 112 of level, described shifting axle is location on joint arm joint, make must the direction of groove of milling all the time through the medial axis of up-down rotary display stand 14.In addition, vertical shifting axle 114 is set, can feeding be carried out via described shifting axle.The driving of shifting axle 112 and 114 is manually carried out at present.As an alternative, certainly also corresponding motor can be set.
Under the state being arranged on supporting member 94 by joint arm 108, each rotary joint of joint arm 108 can carry out locking via the Locking Device be not shown specifically, to guarantee the good intensity during Milling Process.If do not need milling unit 20, so joint arm 108 can be taken apart from supporting member 94, can milling unit 20 is pivoted in off-position subsequently, as shown in Figure 15.
In order to perform the inspection to compressor wheel disc, first the release equipment 10 being divided into its modules A, B, C and D being transported to and checking place.Modular structure this simplify air transport, water transport and land transportation.In order to install release equipment 10, so, modules A and B to be arranged on smooth base and directed.When orientation it should be noted that the accommodation bolt 40 of anterior basic rack section 12a is aimed at the receiving bore 65 be associated of the basic rack section 12b in rear portion.Two modules A and B can be directed via height adjusting screws 46 each other.After this, the anti-torsion device of modules A is removed, after this basic for front portion rack section 12a and the basic rack section 12b in rear portion is moved together.Now, basic for front portion rack section 12a and the basic rack section 12b in rear portion is tightened.
In order to be arranged on the module C being transported to job site in haulage device 66, first the maintenance support 92 of haulage device 66 is taken apart.After this, hoist is utilized in haulage device 66, to carry out orientation to module C by following manner: by module C together with rotary joint 90 pivotable of its bolt 88 around haulage device 66.Now, module C is arranged in its mounting point.After this, impact unit rack section 12f can be risen on upper stand part 12d.When reducing upper stand part 12f it should be noted that the accommodation bolt 54 and 56 of upper stand part 12d is correctly incorporated in the receiving bore 82 and 84 be associated of impact unit rack section 12f.After this, impact unit rack section 12f and upper stand part 12d can be tightened.
In the next step, supporting member 94 is tightened on up-down rotary display stand 14 by screw 96.
In order to installation module D, first the clamping plate 102 of clamping-punching unit 18 are removed.After this, hoist is utilized to be incorporated in the guide rail 36 and 38 be associated of the transmit device 30 of upper stand part 12d by the steering channel 98 and 100 of clamping-punching unit 18.In the next step, reinstall clamping plate 102, after this by the screw-driving of clamping plate 102.
In order to start milling unit 20, the free end of joint arm 108 is fixed on supporting member 94.At this, it should be noted that the supporting surface of up-down rotary display stand 14 is parallel with the X-axis of milling balladeur train.This is realized by following manner: on balladeur train, be fixed with meter, and supporting surface is skimmed over whereby and can revise parallelism via the position of holder on supporting member 94 if desired.After this, the corresponding clamping screw of milling unit 20 is tightened.
In order to perform push, up-down rotary display stand 14 is fixed with the current compressor wheel disc do not illustrated, described wheel disc is provided with the blade that will release, wherein the blade root that is shaped by dovetail shaped of each vanes with the mode of form fit remain on correspondingly configured, along in the compressor wheel disc groove formed in ring week of compressor wheel disc.At this, by by the blade root section of edge side in both sides punching press on compressor wheel disc, the opposing of each blade is axially movably locked within the compressor wheel disc groove be associated.
Subsequently, the free end of the joint arm 108 of milling unit 20 to be fixed on supporting member 94 and by the joint locking of joint arm 108.
In the next step, milling unit 20 is utilized to remove the blade root section of the punching press on the top of each blade remained in compressor wheel disc.In addition, be milled into by groove in each blade root, described groove is hemispheric top for holding the formation be not shown specifically releasing drift 74.Bottom land is observed in cross-section to correspond to and is configured to semicircle with releasing punch tip, for the form fit realizing part.
After milling end-of-job, joint arm 108 is taken apart from supporting member 94, and milling unit 20 is pivoted in its off-position.After this, by up-down rotary display stand 14 and impact unit 16 directed each other, the top releasing drift 74 is made to be contained in the groove of the milling of the blade that will release, wherein it should be noted that, the axle releasing drift 74 is aimed at the compressor wheel disc groove be associated, and holds the compressor blade that will release in described compressor wheel disc groove.Now, the precompression of the precompression cylinder 72 of impact unit 16 is adjusted to, makes to release drift 74 and be applied to about 70% to 90% of the release power required for releasing on the blade that will release.After this, the impact energy of beater mechanism 70 is chosen to, the power required for remaining release blade is applied via beater mechanism 70.In addition, the frequency of impact of beater mechanism 70 is determined.Now, blade can be released from compressor wheel disc, wherein the frequency of impact of the precompression of precompression cylinder 72, the impact energy of beater mechanism 70 and described beater mechanism is changed according to the release state of blade by workman.After release compressor blade, rotate up-down rotary display stand 14, make release drift 74 directed relative to next compressor blade, after this can carry out next push.During each blade is released, support in this way between the maintenance fixture block 104 and 106 compressor wheel disc being clamped in respectively clamping-punching unit 18, make reception to be applied to power on compressor wheel disc via impact unit 16.The blade that will release reliably is stoped to change about the position releasing drift 74 in this way.The installation releasing the energy pivotable of drift 74 in the accommodation head be associated reduces the danger damaging during corresponding push and release drift 74.
In the form of implementation of an alternative of the present invention, the top of releasing drift in order to hold the blade that will release blade neck and be configured to U-shaped or V-arrangement.In order to blade is released, so, release punch tip is placed on blade neck, makes to release punch tip and surround blade neck, during push, stop the slippage releasing drift thus.Can abandon on blade root, be arranged on the groove above described.
After all blades are released from compressor wheel disc, new blade can be inserted in corresponding compressor wheel disc groove, the portion section of from compressor wheel disc groove stretching out of clamping-punching unit 18 to each blade root is wherein utilized to carry out punching press, to be axially fixed on by each compressor blade in the compressor wheel disc groove be associated.In order to monitor the location of compressor wheel disc relative to punch die, for each maintenance mould or punch die 104 and 106 are provided with the vidicon camera be not shown specifically.Camera picture can be observed via corresponding display device.After described end-of-job, compressor wheel disc can be taken apart from up-down rotary display stand 14 and be again assembled in corresponding working equipment.
After inspection terminates, release equipment 10 is split into its modules A, B, C and D again and it easily can be transported.
Although details of the present invention is illustrated in detail by preferred embodiment and described, the present invention is not restricted to disclosed example and those skilled in the art therefrom can derive other variations, and does not depart from protection scope of the present invention.
Claims (35)
1. one kind for remaining on form fit the release equipment (10) that blade in wheel disc releases, and comprising:
Frame (12);
Rotating platform (14); And
Remain on the impact unit (16) in described frame (12), described impact unit has release drift (74) and is applied to the beater mechanism (70) on described release drift,
Be provided with clamping unit, described clamping unit forms and is designed to, and described clamping unit is supported described wheel disc when being released by described blade,
It is characterized in that,
Be provided with punching unit, described punching unit and described clamping unit (18) are integrally configured to clamping-punching unit.
2. release equipment (10) according to claim 1,
It is characterized in that,
Described blade is compressor blade.
3. release equipment (10) according to claim 1,
It is characterized in that,
Described rotating platform (14) is up-down rotary display stand.
4. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described impact unit (16) has the precompression cylinder (72) be applied on described release drift (74), by described precompression cylinder, described release drift (74) can be pre-compacted against the blade that will release with predetermined pressure.
5. release equipment (10) according to claim 4,
It is characterized in that,
Be provided with at least one operation equipment, the frequency of impact of the precompression of described precompression cylinder (72) and/or the impact energy of described beater mechanism (70) and/or described beater mechanism (70) can be regulated by operator via described operation equipment
Wherein said precompression can regulate in the scope between 0bar and 250bar.
6. release equipment (10) according to claim 4,
It is characterized in that,
Be provided with at least one sensor of the precompression of equipment control device and the described precompression cylinder of detection (72), the described precompression detected is sent to described equipment control device with the form that precompression outputs signal by described sensor, wherein said equipment control device is designed to, and makes described equipment control device change the impact energy of the described precompression of described precompression cylinder (72) and/or the impact force of described beater mechanism (70) and/or described beater mechanism (70) according to received described precompression output signal.
7. release equipment (10) according to claim 4,
It is characterized in that,
Described precompression cylinder (72) is oil hydraulic cylinder.
8. release equipment (10) according to claim 4,
It is characterized in that,
Described precompression cylinder (72) has through piston rod (76) and is arranged between described beater mechanism (70) and described release drift (74), described beater mechanism (70) is applied on a piston rod end, and another piston rod end is applied on described release drift (74).
9. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described beater mechanism (70) has pneumatic impact cylinder.
10. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described release drift (74) is swingingly arranged on holds in head.
11. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
The release punch tip be arranged on the free end of described release drift (74) is configured to be rounding.
12. release equipment (10) according to claim 11,
It is characterized in that,
The release punch tip be arranged on the free end of described release drift (74) is configured to be hemispheric.
13. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Be arranged on release punch tip on the free end of described release drift (74) that blade neck is configured to U-shaped or V-arrangement in order to hold.
14. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described impact unit (16) via regulation unit can the mode of pivotable remain on rack section (12f).
15. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described clamping unit has regulating device (36,38,100,102), and described regulating device is configured to, and makes described regulating device at least can realize described clamping unit radial direction and moves in described rotating platform (14).
16. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described clamping unit is can the mode of pivotable remain in described frame (12).
17. release equipment (10) according to claim 16,
It is characterized in that,
Described clamping unit is the mode of pivotable can remain on and keep on rack section (12e), and described maintenance rack section is can the mode of pivotable be fixed in upper stand part (12d).
18. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described clamping unit has bottom and keeps fixture block (104) and one or more top to keep fixture block (106), and described bottom keeps fixture block and one or more top to keep fixture block to move close to each other and away from each other.
19. release equipment (10) according to claim 18,
It is characterized in that,
Described bottom keeps fixture block (104) and one or more top to keep fixture block (106) can move close to each other and away from each other via screw actuator or oil hydraulic cylinder.
20. release equipment (10) according to claim 18,
It is characterized in that,
Punch die is integrated into described bottom and keeps fixture block (104) and described top to keep in fixture block (106).
21. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Be provided with milling unit (20).
22. release equipment (10) according to claim 21,
It is characterized in that,
Described milling unit (20) is can remain in described frame (12) via the joint arm of more piece (108) mode of pivotable between working position and off-position.
23. release equipment (10) according to claim 22,
It is characterized in that,
Described milling unit (20) keeps on rack section (12e) can remain on via the joint arm of more piece (108) mode of pivotable between working position and off-position.
24. release equipment (10) according to claim 21,
It is characterized in that,
Described milling unit (20) is configured to, and described milling unit can be supported on the medial axis of described rotating platform (14) in its working position.
25. release equipment (10) according to claim 22,
It is characterized in that,
Described milling unit (20) has the Locking Device of the rotary joint for joint arm described in locking (108).
26. release equipment (10) according to claim 21,
It is characterized in that,
Described milling unit (20) has the movement of at least two milling cutter shifting axles (112,114) for milling head (110).
27. release equipment (10) according to claim 26,
It is characterized in that,
Be provided with the milling cutter shifting axle (112) of level, the milling cutter shifting axle of described level is positioned in joint arm joint, make must the direction of groove of milling all the time through the medial axis of described rotating platform (14).
28. release equipment (10) according to claim 26,
It is characterized in that,
Be provided with vertical milling cutter shifting axle (114).
29. release equipment (10) according to claim 26,
It is characterized in that,
Described milling cutter shifting axle (112,114) manually drives and/or drives via corresponding motor.
30. release equipment (10) according to any one of claim 1 to 3,
It is characterized in that,
Described frame (12) comprising: basic rack section (12a, 12b); Lower framework part (12c), described lower framework part remains on described basic rack section (12a) via linear guide apparatus (24) in the mode that can move; Upper stand part (12d), described upper stand part is can pivotable and the mode that can take apart be fixed on described lower framework part (12c); Keep rack section (12e), described maintenance rack section is can pivotable and the mode that can take apart remain on described upper stand part (12d); And impact unit rack section (12f), described impact unit rack section remains on described upper stand part (12d) in the mode that can take apart,
Wherein said basic rack section is divided into each basic framework portion branch section (12a, 12b) be connected to each other in the mode that can take apart.
31. 1 kinds for form fit is remained on the method that blade in wheel disc releases,
The release equipment (10) according to any one in claims 1 to 30 is wherein utilized to release described blade.
32. methods according to claim 31,
During releasing blade, wherein change the frequency of impact of the precompression of described precompression cylinder (72) and/or the impact energy of described beater mechanism (70) and/or described beater mechanism (70).
33. methods according to claim 31 or 32,
Before being released by described blade, the region be stamped of the blade root of the blade that will release wherein just is removed at least in part by means of milling.
34. methods according to claim 31 or 32,
Wherein on the upside of the blade root of the blade that will release, be just milled into recess before release, described recess is used as the support mechanism for described release drift and resists the slippage of described release drift (74) during releasing described blade.
35. methods according to claim 31,
Wherein said blade is compressor blade.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2011/059499 WO2012167824A1 (en) | 2011-06-08 | 2011-06-08 | Device and method for driving out blades retained in a form-fit manner in a rotor disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103597169A CN103597169A (en) | 2014-02-19 |
| CN103597169B true CN103597169B (en) | 2016-01-20 |
Family
ID=44627208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180071521.0A Expired - Fee Related CN103597169B (en) | 2011-06-08 | 2011-06-08 | For form fit is remained on the equipment and method that blade in wheel disc releases |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2689106A1 (en) |
| KR (1) | KR101549323B1 (en) |
| CN (1) | CN103597169B (en) |
| RU (1) | RU2571494C2 (en) |
| WO (1) | WO2012167824A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9381602B2 (en) * | 2014-05-14 | 2016-07-05 | General Electric Company | Turbomachine bucket displacement apparatus and method of use |
| DE102015215004A1 (en) | 2015-08-06 | 2017-02-09 | Siemens Aktiengesellschaft | Method and expeller for driving a blade |
| EP3318716B2 (en) | 2016-11-04 | 2023-01-11 | General Electric Company | Installation or removal of turbine blade at turbine blade base |
| EP3327250B1 (en) * | 2016-11-23 | 2024-05-15 | General Electric Technology GmbH | Installation or removal of turbine blade at turbine blade base |
| CN107914131B (en) * | 2017-12-15 | 2023-07-18 | 浙江武义浩伟机械有限公司 | Assembling device for handle lock handle and lock shell |
| CN109333412B (en) * | 2018-12-07 | 2020-08-25 | 中国航发南方工业有限公司 | Locking plate disassembling tool of turbine rotor assembly |
| US11732613B2 (en) | 2021-01-22 | 2023-08-22 | General Electric Company | Apparatus for removal or installation of turbine blade |
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| DD211227A3 (en) * | 1983-03-07 | 1984-07-04 | Elbe Kraftwerke Veb | DEVICE FOR MOUNTING OR REMOVING AN AXIALLA FUEL WHEEL |
| CN1601056A (en) * | 2003-09-24 | 2005-03-30 | 阿尔斯通技术有限公司 | Turbine blade of turine and its puller |
| EP2211027A1 (en) * | 2008-12-31 | 2010-07-28 | General Electric Company | Apparatus and method for removing compressor blades |
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| SU509331A1 (en) * | 1974-10-04 | 1976-04-05 | Предприятие П/Я Р-6930 | Riveting device |
| SU795708A1 (en) * | 1979-02-22 | 1981-01-15 | Всесоюзный Проектно-Технологический Инсти-Тут Энергетического Машиностроения | Unit for assembling and disassembling riveted articles |
| US4455730A (en) * | 1982-08-30 | 1984-06-26 | Westinghouse Electric Corp. | Turbine blade extractor |
| DE3333665A1 (en) * | 1983-09-17 | 1985-04-04 | Skf Kugellagerfabriken Gmbh, 8720 Schweinfurt | METHOD AND DEVICE FOR ASSEMBLING CROSS JOINTS |
| JP4205267B2 (en) * | 1999-09-21 | 2009-01-07 | 本田技研工業株式会社 | Turbine rotor stopper pin bending device |
| RU2189894C1 (en) * | 2001-04-23 | 2002-09-27 | Федеральное государственное унитарное предприятие "Московское машиностроительное производственное предприятие "Салют" | Device for locking blades of turbo-machine in repair |
| FR2902360B1 (en) * | 2006-06-19 | 2008-08-29 | Snecma Sa | DEVICE FOR MAINTAINING PARTS IN A METHOD FOR REPAIRING A BLADE OF A MONOBLOC AUBING DISC OF A TURBOMACHINE |
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2011
- 2011-06-08 WO PCT/EP2011/059499 patent/WO2012167824A1/en active Application Filing
- 2011-06-08 KR KR1020137032193A patent/KR101549323B1/en not_active IP Right Cessation
- 2011-06-08 RU RU2013158353/06A patent/RU2571494C2/en not_active IP Right Cessation
- 2011-06-08 EP EP11726097.6A patent/EP2689106A1/en not_active Withdrawn
- 2011-06-08 CN CN201180071521.0A patent/CN103597169B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD211227A3 (en) * | 1983-03-07 | 1984-07-04 | Elbe Kraftwerke Veb | DEVICE FOR MOUNTING OR REMOVING AN AXIALLA FUEL WHEEL |
| CN1601056A (en) * | 2003-09-24 | 2005-03-30 | 阿尔斯通技术有限公司 | Turbine blade of turine and its puller |
| EP2211027A1 (en) * | 2008-12-31 | 2010-07-28 | General Electric Company | Apparatus and method for removing compressor blades |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101549323B1 (en) | 2015-09-01 |
| RU2013158353A (en) | 2015-07-20 |
| KR20140015523A (en) | 2014-02-06 |
| EP2689106A1 (en) | 2014-01-29 |
| WO2012167824A1 (en) | 2012-12-13 |
| CN103597169A (en) | 2014-02-19 |
| RU2571494C2 (en) | 2015-12-20 |
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