CN203502170U - Steam turbine high-speed dynamic balance-used balance block - Google Patents
Steam turbine high-speed dynamic balance-used balance block Download PDFInfo
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- CN203502170U CN203502170U CN201320672936.XU CN201320672936U CN203502170U CN 203502170 U CN203502170 U CN 203502170U CN 201320672936 U CN201320672936 U CN 201320672936U CN 203502170 U CN203502170 U CN 203502170U
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- steam turbine
- radius
- turbine high
- balance
- utility
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- 230000001052 transient effect Effects 0.000 claims description 14
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000527 greater trochanter Anatomy 0.000 description 1
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Abstract
The utility model relates to a steam turbine high-speed dynamic balance-used balance block. The objective of the utility model is to solve the problems of waste of time and low work efficiency caused by a requirement for field match grinding in balance block installation as well as the problem of incapability of satisfying requirements of rotator balance having large initial unbalance quantity in the prior. The balance block of the utility model is provided with six surfaces; the six surfaces are respectively a top surface, a bottom surface, a front surface, a back surface and two side surfaces, wherein the top surface is a skew surface protruding upwards, the bottom surface is a skew surface recessed upwards, the front surface, the back surface and the two side surfaces are planes; two gaps are processed at the intersection of the top surface and the back surface; threaded holes are processed along the bottoms of the gaps to the intersection of the front surface and the bottom surface; the radius of a top arc of the surface is R1; the radius of a bottom arc of the top surface is R2; the radius of the top arc of the bottom surface is R3; the radius of the bottom arc of the bottom surface is R4; and the distance from the front surface to the back surface is L. The steam turbine high-speed dynamic balance-used balance block of the utility model is applied to steam turbine high-speed dynamic balance experiments.
Description
Technical field
The utility model relates to a kind of steam turbine high speed transient equilibrium counterbalance weight.
Background technology
Steam turbine high speed transient equilibrium is at present all two halves formula counterbalance weight with technique counterbalance weight, during each installation counterbalance weight, all need on-the-spot match grinding, after match grinding at two halves counterbalance weight centre position drilling and tapping, whole process need consumes long time and just can complete, at the bottom of work efficiency, and shortage versatility, because every roots rotor increases the weight of radius difference, so every roots rotor all needs match grinding counterbalance weight again.In addition, the quality in the unit arc length of conventional balanced piece is less than normal, can not meet the balance requirement of larger initial unbalance, rotor.
Utility model content
The utility model needs on-the-spot match grinding in order to solve in prior art when technological balance piece is installed, lose time, inefficiency, and counterbalance weight weight is less than normal, can not meet initial unbalance, compared with the problem of greater trochanter balance, and then a kind of steam turbine high speed transient equilibrium counterbalance weight is provided.
The utility model is to address the above problem the technical scheme adopting to be: described counterbalance weight has six faces, described six faces are respectively end face, bottom surface, positive, He Liangge side, the back side, end face is the skew surface raising up, bottom surface is the skew surface of thinking that fovea superior rises, positive, the back side and side are plane, end face and intersection, the back side are processed with two breach, bottom along breach is processed with threaded hole to positive and intersection, bottom surface, the center line of threaded hole and front angulation are r, r is acute angle, the radius of end face top camber line is R1, the radius of end face bottom camber line is R2, the radius of top, bottom surface camber line is R3, the radius of bottom, bottom surface camber line is R4, the positive distance to the back side is L.
The beneficial effects of the utility model are: the utility model can be arranged on to the optional position on compensating groove, before installation, do not need on-the-spot match grinding and tapping, improved the installation rate that counterbalance weight is installed, installation effectiveness has improved 60%-80%, counterbalance weight of the present utility model can meet the requirement of aequum rotor to counterbalance weight weight, the utility model also has advantage simple in structure, reasonable in design.
Accompanying drawing explanation
Fig. 1 is one-piece construction front view of the present utility model, Fig. 2 be in Fig. 1 A-A to view.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1-Fig. 2, a kind of steam turbine high speed transient equilibrium counterbalance weight described in present embodiment, described counterbalance weight has six faces, described six faces are respectively end face 1, bottom surface 2, positive 3, the back side 4 and two sides 5, the skew surface of end face 1 for raising up, bottom surface 2 is for thinking the skew surface that fovea superior rises, positive 3, the back side 4 and side 5 are plane, end face 1 and 4 intersections, the back side are processed with two breach 6, bottom along breach 6 is processed with threaded hole 7 to front 3 and 2 intersections, bottom surface, the center line of threaded hole 7 and positive 3 angulations are r, r is acute angle, the radius of end face 1 top camber line is R1, the radius of end face 1 bottom camber line is R2, the radius of bottom surface 2 top camber lines is R3, the radius of bottom surface 2 bottom camber lines is R4, positive 3 to the back side, 4 distance is L.
Embodiment two: present embodiment is described in conjunction with Fig. 1-Fig. 2, a kind of steam turbine high speed transient equilibrium counterbalance weight described in present embodiment, the span of described r is 25 °～40 °, in this angular range, two jackscrews of counterbalance weight are stable equilibrium piece effectively, the top that can make jackscrew fully contacts with compensating groove bottom, and by friction force stable equilibrium piece firmly, other is identical with embodiment one.
Embodiment three: present embodiment is described in conjunction with Fig. 1-Fig. 2, a kind of steam turbine high speed transient equilibrium counterbalance weight described in present embodiment, 3, a kind of steam turbine high speed transient equilibrium counterbalance weight according to claim 1, it is characterized in that: the numerical value of described R1 is 516.3mm, the numerical value of R2 is 506.3mm, the numerical value of R3 is 496.3mm, and the numerical value of R4 is 486.3mm, and other is identical with embodiment one.
Embodiment four: present embodiment is described in conjunction with Fig. 1-Fig. 2, a kind of steam turbine high speed transient equilibrium counterbalance weight described in present embodiment, the span of described L is 15-20mm, the thickness increase of counterbalance weight of the present invention has met the request for utilization of transient equilibrium to counterbalance weight, and other is identical with embodiment one.
Principle of work
The utility model is fixedly mounted in compensating groove by two jackscrews, and the short time is arranged on the utility model on compensating groove, makes the utility model reach object of the present invention.
Claims (4)
1. a steam turbine high speed transient equilibrium counterbalance weight, it is characterized in that: described counterbalance weight has six faces, described six faces are respectively end face (1), bottom surface (2), positive (3), the back side (4) and two sides (5), the skew surface of end face (1) for raising up, bottom surface (2) is for thinking the skew surface that fovea superior rises, positive (3), the back side (4) and side (5) are plane, end face (1) and intersection, the back side (4) are processed with two breach (6), bottom along breach (6) is processed with threaded hole (7) to positive (3) and intersection, bottom surface (2), the center line of threaded hole (7) is r with positive (3) angulation, r is acute angle, the radius of end face (1) top camber line is R1, the radius of end face (1) bottom camber line is R2, the radius of top, bottom surface (2) camber line is R3, the radius of bottom, bottom surface (2) camber line is R4, positive (3) distance of (4) is L to the back side.
2. a kind of steam turbine high speed transient equilibrium counterbalance weight according to claim 1, is characterized in that: the span of described r is 25 °～40 °.
3. a kind of steam turbine high speed transient equilibrium counterbalance weight according to claim 1, is characterized in that: the numerical value of described R1 is 516.3mm, and the numerical value of R2 is 506.3mm, and the numerical value of R3 is 496.3mm, and the numerical value of R4 is 486.3mm.
4. a kind of steam turbine high speed transient equilibrium counterbalance weight according to claim 1, is characterized in that: the span of described L is 15-20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672936.XU CN203502170U (en) | 2013-10-29 | 2013-10-29 | Steam turbine high-speed dynamic balance-used balance block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672936.XU CN203502170U (en) | 2013-10-29 | 2013-10-29 | Steam turbine high-speed dynamic balance-used balance block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203502170U true CN203502170U (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320672936.XU Expired - Lifetime CN203502170U (en) | 2013-10-29 | 2013-10-29 | Steam turbine high-speed dynamic balance-used balance block |
Country Status (1)
| Country | Link |
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| CN (1) | CN203502170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592080A (en) * | 2013-10-29 | 2014-02-19 | 哈尔滨汽轮机厂有限责任公司 | Counter balance for turbine high-speed dynamic balance |
| CN106346238A (en) * | 2015-07-16 | 2017-01-25 | 上海电气电站设备有限公司 | Installation tool for dynamic balancing blocks of steam turbine rotors and use method of installation tool |
-
2013
- 2013-10-29 CN CN201320672936.XU patent/CN203502170U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592080A (en) * | 2013-10-29 | 2014-02-19 | 哈尔滨汽轮机厂有限责任公司 | Counter balance for turbine high-speed dynamic balance |
| CN106346238A (en) * | 2015-07-16 | 2017-01-25 | 上海电气电站设备有限公司 | Installation tool for dynamic balancing blocks of steam turbine rotors and use method of installation tool |
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Granted publication date: 20140326 |