CN111571254B - Manufacturing device for arc-shaped blade of steam turbine - Google Patents

Manufacturing device for arc-shaped blade of steam turbine Download PDF

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Publication number
CN111571254B
CN111571254B CN202010269519.5A CN202010269519A CN111571254B CN 111571254 B CN111571254 B CN 111571254B CN 202010269519 A CN202010269519 A CN 202010269519A CN 111571254 B CN111571254 B CN 111571254B
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arc
blade
vertical groove
clamping block
fixedly connected
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CN202010269519.5A
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CN111571254A (en
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钱志伦
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Hunan Huijun Precision Machinery Co.,Ltd.
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Hunan Huijun Precision Machinery Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12Blades
    • F01D5/14Form or construction
    • F01D5/147Construction, i.e. structural features, e.g. of weight-saving hollow blades

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The invention relates to the technical field of intelligent manufacturing, and discloses a manufacturing device of a turbine arc blade, which comprises a supporting shell, wherein the bottom of an inner cavity of the supporting shell is fixedly connected with a fixed plate, an adjusting gasket is arranged above the fixed plate, the top of the adjusting gasket is fixedly connected with a clamping block, the back surface of the clamping block is in contact with the front surface of the supporting shell, an arc blade mechanism is movably sleeved in the clamping block, the left side of the front surface of the clamping block is fixedly connected with a clamping plate, an oil hole is formed in the clamping block and is positioned at the left lower part of the arc blade mechanism, and a vertical groove is formed in the middle part of the fixed plate. This manufacturing installation of steam turbine arc leaf through blade portion, arc leaf piece and inlay the cooperation between the portion, and the torsion restoring force contact connection when utilizing the rotation with two adjacent arc leaf mechanisms reduces the amount of torsion of blade portion, has improved the contained angle between arc leaf piece central line and the adjacent leaf, increases the area of two arc leaf mechanism contact departments, has improved the rigidity of arc leaf.

Description

Manufacturing device for arc-shaped blade of steam turbine
Technical Field
The invention relates to the technical field of intelligent manufacturing, in particular to a manufacturing device of an arc-shaped blade of a steam turbine.
Background
The steam turbine is a rotary power machine for converting steam energy into mechanical work, also called a steam turbine, and is mainly used for manufacturing prime movers for power generation or manufacturing various pumps, fans, compressors and ship propellers, in addition, the steam turbine can also be used for exhausting or supplying intermediate steam to meet the heat supply requirements of production and life, the steam turbine is divided into a rotating part and a static part, the rotating part is generally called a rotor, comprises a main shaft impeller, a moving blade, a coupling and the like, is one of the most main parts of the steam turbine, and plays the tasks of energy conversion of working media and torque transmission, wherein the impeller is used for mounting the blade and transmitting the torque generated by airflow force on a blade grid; the moving blade is a blade that rotates together with the turbine rotor during the operation of the turbine, and is also called a working blade, and is generally installed on an impeller or a rotating drum, and a moving blade cascade is composed of a plurality of blades, and functions to convert steam heat energy into kinetic energy, and then convert the kinetic energy into mechanical energy of the turbine rotor, thereby rotating the rotor.
The existing turbine arc blade needs to increase the length of the blade of the arc blade in order to improve the efficient working efficiency and capacity of the turbine arc blade, but the length of the blade of the arc blade is increased, so that the twisting amount of the arc blade is increased, the angle formed by the central line of the arc blade and the circumferential direction is reduced, and the area of an embedded part is narrowed, so that the rigidity problem of the arc blade is not easy to ensure, the rigidity of the arc blade is reduced, and the fixing piece at the bottom of the existing turbine arc blade manufacturing device is fixed when the arc blade is machined, so that the phenomenon that the fixing plate and the clamping block at the outer side of the blade resonate is caused, the arc blade and the fixing plate are damaged, and the turbine arc blade manufacturing device is provided.
Disclosure of Invention
The invention provides a manufacturing device of a turbine arc blade, which has the advantage of improving the rigidity of the arc blade, solves the problem that the existing turbine arc blade needs to increase the length of the blade of the arc blade in order to improve the high-efficiency working efficiency and capacity of the existing turbine arc blade, but along with the increase of the length of the blade of the arc blade, thereby increasing the twisting amount of the arc-shaped blade part, reducing the angle formed by the central line of the arc-shaped blade and the circumferential direction, narrowing the area for forming the embedded part, thereby the rigidity of the arc blade is not easy to be ensured, the rigidity of the arc blade is reduced, and the fixing piece at the bottom of the existing manufacturing device of the arc blade of the steam turbine needs to be fixed when the arc blade is processed, the fixed plate and the clamping block on the outer side of the blade can resonate, and the arc blade and the fixed plate can be damaged.
In order to achieve the above purpose, the invention provides the following technical scheme to realize: the utility model provides a manufacturing installation of steam turbine arc leaf, includes supporting housing, the bottom fixedly connected with fixed plate of supporting housing inner chamber, the top of fixed plate is provided with adjusting shim, adjusting shim's top fixedly connected with joint piece, the back of joint piece contacts with supporting housing's front, arc leaf mechanism has been cup jointed in the inside activity of joint piece, the positive left side fixedly connected with joint board of joint piece, the oilhole has been seted up to the inside of joint piece, the oilhole is located the left side below of arc leaf mechanism, vertical groove has been seted up at the middle part of fixed plate, vertical groove's inside activity joint has regulation and control device, adjusting bolt has been cup jointed in supporting housing's bottom activity.
Optionally, the regulation and control device includes a supporting rod, the top end of the supporting rod penetrates through the adjusting shim and extends to the inside of the adjusting shim, and the top end of the regulation and control device is fixedly connected with the inside of the adjusting shim.
Optionally, the bottom of bracing piece runs through fixed plate and vertical groove in proper order and extends to the inside of vertical groove, the equal fixedly connected with stopper in the left and right sides of bracing piece, two the stopper uses the central line of the vertical direction of bracing piece to be symmetry each other, two the stopper runs through the left and right sides of vertical groove inner chamber in proper order and extends to the inside of vertical groove, two the inside swing joint of stopper opposite one side and vertical groove, interior screw hole has been seted up to the bottom of bracing piece.
Optionally, the top of the adjusting bolt sequentially penetrates through the fixing plate, the vertical groove and the inner threaded hole and extends to the inside of the inner threaded hole, and the outer surface of the adjusting bolt is in threaded connection with the inside of the inner threaded hole.
Optionally, the arc blade mechanism is including the positive fixedly connected with arc blade piece of blade portion, the protruding piece of top fixedly connected with of arc blade piece, inlay the portion of having seted up on the right side of arc blade piece, the acute angle that the top of inlaying the portion formed is sixty degrees.
The invention provides a manufacturing device of a turbine arc blade, which has the following beneficial effects:
1. this manufacturing installation of steam turbine arc leaf through blade portion, arc leaf piece and inlay the cooperation between the portion, and the torsion restoring force contact connection when utilizing the rotation with two adjacent arc leaf mechanisms reduces the amount of torsion of blade portion, has improved the contained angle between arc leaf piece central line and the adjacent leaf, increases the area of two arc leaf mechanism contact departments, has improved the rigidity of arc leaf.
2. This manufacturing installation of steam turbine arc leaf through the cooperation between vertical groove, regulation and control device and the adjusting bolt, rotates adjusting bolt and utilizes the interior screw hole threaded connection on adjusting bolt and the regulation and control device, carries out the fixed point to the position of adjusting shim and adjusts, avoids fixed connection and the resonance phenomenon that produces between adjusting shim and the fixed plate, plays the effect of protection to arc leaf and fixed block.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a side view of a partial structure of the present invention;
FIG. 3 is a side half-sectional view of the arc vane mechanism of the present invention;
FIG. 4 is a schematic cross-sectional view of B-B in FIG. 3;
fig. 5 is an enlarged schematic view of the structure at a in the present invention.
In the figure: 1. a support housing; 2. a fixing plate; 3. adjusting the gasket; 4. a clamping block; 5. a cambered vane mechanism; 51. a blade section; 52. a cambered vane block; 53. a raised block; 54. an inlay portion; 6. a clamping and connecting plate; 7. an oil hole; 8. a vertical slot; 9. a regulating device; 91. a support bar; 92. an inner threaded hole; 93. a limiting block; 10. and adjusting the bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a steam turbine arc blade manufacturing device comprises a supporting shell 1, wherein a fixed plate 2 is fixedly connected to the bottom of an inner cavity of the supporting shell 1, an adjusting gasket 3 is arranged above the fixed plate 2, a clamping block 4 is fixedly connected to the top of the adjusting gasket 3, the back of the clamping block 4 is in contact with the front of the supporting shell 1, an arc blade mechanism 5 is movably sleeved on the inside of the clamping block 4, a clamping plate 6 is fixedly connected to the left side of the front of the clamping block 4, an oil hole 7 is formed in the clamping block 4, the oil hole 7 is located on the left lower side of the arc blade mechanism 5, a vertical groove 8 is formed in the middle of the fixed plate 2, a regulating device 9 is movably clamped inside the vertical groove 8, and an adjusting bolt 10 is movably sleeved on the bottom of the supporting shell 1.
Wherein, regulation and control device 9 is including bracing piece 91, adjusting shim 3 is run through and extends to adjusting shim 3's inside on the top of bracing piece 91, adjusting shim 9's top and adjusting shim 3's inside fixed connection utilize adjusting bolt 10 and the interior screw hole 92 threaded connection in regulation and control device 9, adjust adjusting shim 3's height.
Wherein, the bottom end of the supporting rod 91 penetrates through the fixing plate 2 and the vertical groove 8 in sequence and extends to the inside of the vertical groove 8, the left and right sides of the supporting rod 91 are fixedly connected with the limiting blocks 93, the two limiting blocks 93 are mutually symmetrical by taking the central line of the vertical direction of the supporting rod 91 as a symmetry axis, the two limiting blocks 93 penetrate through the left and right sides of the inner cavity of the vertical groove 8 in sequence and extend to the inside of the vertical groove 8, the opposite sides of the two limiting blocks 93 are movably connected with the inside of the vertical groove 8, the bottom of the supporting rod 91 is provided with an inner threaded hole 92, through the matching among the vertical groove 8, the regulating device 9 and the adjusting bolt 10, the adjusting bolt 10 is rotated to utilize the adjusting bolt 10 to be in threaded connection with the inner threaded hole 92 on the regulating device 9, the position of the regulating gasket 3 is regulated at a fixed point, and the phenomenon that the fixed connection between the regulating gasket 3 and the fixing plate 2 is resonated is avoided, the resonance is defined as two objects with the same vibration frequency, when one object vibrates, the other object vibrates, so that the adjusting gasket 3 and the fixing plate 2 are prevented from generating the same vibration amplitude, and the arc-shaped blade and the fixing block are protected.
Wherein, adjusting bolt 10's top is run through fixed plate 2, vertical groove 8 and interior screw hole 92 in proper order and is extended to the inside of interior screw hole 92, adjusting bolt 10's surface and the inside threaded connection of interior screw hole 92, drive bracing piece 91 upward movement through clockwise rotation adjusting bolt 10, then drive adjusting shim 3's position upward movement, drive bracing piece 91 downward movement when anticlockwise rotation adjusting bolt 10, then drive adjusting shim 3's position downward movement, when the bottom of stopper 93 contacts with the bottom of vertical groove 8 inner chamber, adjusting shim 3 is in the minimum this moment, when the top of stopper 93 contacts with the top of vertical groove 8 inner chamber, adjusting shim 3 is in the peak this moment.
Wherein, arc leaf mechanism 5 is including the positive fixedly connected with arc leaf piece 52 of blade portion 51, the protruding piece 53 of top fixedly connected with of arc leaf piece 52, inlay portion 54 has been seted up on arc leaf piece 52's right side, the acute angle that the top of inlaying portion 54 formed is sixty degrees, and the torsion restoring force contact connection when utilizing the rotation with two adjacent arc leaf mechanisms 5 reduces the torsion volume of blade portion, has improved the contained angle between arc leaf piece 52 central line and the adjacent leaf, increases the area of two arc leaf mechanisms 5 contact departments, has improved the rigidity of arc leaf.
The working step, at first the staff fixes fixed plate 2 directly over supporting housing 1, then place adjusting shim 3 in the recess at fixed plate 2 top, later place joint piece 4 perpendicularly in adjusting shim 3's top, and keep the back of joint piece 4 and the front department of meeting of supporting housing 1, then restrict the position of stopper 93 through vertical groove 8, ensure that stopper 93 can only do vertical direction motion, later through supporting housing 1 bottom swing joint's adjusting bolt 10 and the interior screw hole 92 threaded connection of regulation and control device 9 bottom, then adjust adjusting shim 3's position through rotating adjusting bolt 10 and utilizing stopper 93 joint at vertical groove 8.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. A manufacturing installation of steam turbine arc leaf, includes support casing (1), its characterized in that: the bottom of the inner cavity of the supporting shell (1) is fixedly connected with a fixing plate (2), an adjusting gasket (3) is arranged above the fixing plate (2), the top of the adjusting gasket (3) is fixedly connected with a clamping block (4), the back surface of the clamping block (4) is contacted with the front surface of the supporting shell (1), an arc blade mechanism (5) is sleeved on the inner part of the clamping block (4), the front left side of the clamping block (4) is fixedly connected with a clamping plate (6), an oil hole (7) is formed in the clamping block (4), the oil hole (7) is positioned at the left lower part of the arc blade mechanism (5), a vertical groove (8) is formed in the middle part of the fixing plate (2), the inner part of the vertical groove (8) is clamped with an adjusting and controlling device (9), the adjusting and controlling device (9) comprises a supporting rod (91), the top end of the supporting rod (91) penetrates through the adjusting gasket (3) and extends to the inside of the adjusting gasket (3), the top of regulation and control device (9) and the inside fixed connection of adjusting shim (3), adjusting bolt (10) have been cup jointed in the bottom activity of support casing (1), interior screw hole (92) have been seted up to the bottom of bracing piece (91), the inside that fixed plate (2), vertical groove (8) and interior screw hole (92) and extend to interior screw hole (92) is run through in proper order at the top of adjusting bolt (10), the surface of adjusting bolt (10) and the inside threaded connection of interior screw hole (92).
2. The apparatus for manufacturing a curved blade of a steam turbine according to claim 1, wherein: the bottom of bracing piece (91) runs through fixed plate (2) and vertical groove (8) in proper order and extends to the inside of vertical groove (8), the equal fixedly connected with stopper (93) of the left and right sides of bracing piece (91), two stopper (93) use the central line of bracing piece (91) vertical direction as the symmetry axis mutual symmetry, two stopper (93) run through the left and right sides of vertical groove (8) inner chamber in proper order and extend to the inside of vertical groove (8), two the inside swing joint of the opposite one side of stopper (93) and vertical groove (8).
3. The apparatus for manufacturing a curved blade of a steam turbine according to claim 1, wherein: arc leaf mechanism (5) including positive fixedly connected with arc leaf piece (52) of blade portion (51), the top fixedly connected with protruding piece (53) of arc leaf piece (52), inlay portion (54) has been seted up on the right side of arc leaf piece (52), the acute angle that the top of inlaying portion (54) formed is sixty degrees.
CN202010269519.5A 2020-04-08 2020-04-08 Manufacturing device for arc-shaped blade of steam turbine Active CN111571254B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000176766A (en) * 1998-12-17 2000-06-27 United Technol Corp <Utc> Fitting tool for holding blank member and fitting method for blank member
CN102091956A (en) * 2011-01-11 2011-06-15 无锡市艾尔福叶片有限公司 Rotary milling support frame for blades of steam turbine
CN204221440U (en) * 2014-11-05 2015-03-25 南京赛达机械制造有限公司 A kind of adjustable back arc of gas passageway of blade of steam turbine fixture
CN206550691U (en) * 2017-03-27 2017-10-13 杭州汽轮机股份有限公司 One kind saw twisted blade afterbody inclined-plane can adjust fixture
CN108132647A (en) * 2017-11-29 2018-06-08 杭州亘元汽轮机叶片有限公司 A kind of processing method of steam turbine arc shaped blade

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000176766A (en) * 1998-12-17 2000-06-27 United Technol Corp <Utc> Fitting tool for holding blank member and fitting method for blank member
CN102091956A (en) * 2011-01-11 2011-06-15 无锡市艾尔福叶片有限公司 Rotary milling support frame for blades of steam turbine
CN204221440U (en) * 2014-11-05 2015-03-25 南京赛达机械制造有限公司 A kind of adjustable back arc of gas passageway of blade of steam turbine fixture
CN206550691U (en) * 2017-03-27 2017-10-13 杭州汽轮机股份有限公司 One kind saw twisted blade afterbody inclined-plane can adjust fixture
CN108132647A (en) * 2017-11-29 2018-06-08 杭州亘元汽轮机叶片有限公司 A kind of processing method of steam turbine arc shaped blade

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