CN202622523U - Grinding clamp of gland segment of turbine set - Google Patents
Grinding clamp of gland segment of turbine set Download PDFInfo
- Publication number
- CN202622523U CN202622523U CN 201220279147 CN201220279147U CN202622523U CN 202622523 U CN202622523 U CN 202622523U CN 201220279147 CN201220279147 CN 201220279147 CN 201220279147 U CN201220279147 U CN 201220279147U CN 202622523 U CN202622523 U CN 202622523U
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- CN
- China
- Prior art keywords
- clamp
- clamp body
- segmental arc
- groove
- packing segmental
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a grinding clamp, and in particular relates to a grinding clamp of a gland segment of a turbine set, which solves problems that no special grinding clamp exists and the precision of machining an end surface interval between segments is low in a machining process of the traditional gland segment. The grinding clamp comprises a clamping body and a press plate, wherein The clamping body is rectangular, a protruded circular arc slot matching with the gland segment is arranged on the long side surface of the clamping body in the length direction of the clamping body, the gland segment is fixedly arranged in the protruded circular arc slot of the clamping body through the press plate, and a supporting boss is arranged on the bottom end surface of the press plate. The grinding clamp disclosed by the utility model is applied to grinding the gland segment to be machined.
Description
Technical field
The utility model relates to a kind of clamp, is specifically related to a kind of steam turbine unit packing segmental arc clamp.
Background technology
The packing segmental arc is one of building block of steam turbine unit, and every circle is made up of 12 segmental arcs, is designed with sealed groove at outer round surface, and two end faces of each segmental arc are straight end face, designing requirement 0.5 ± 0.05mm in end clearance between segmental arc.Do not have special-purpose clamp in the existing packing segmental arc process, the end clearance machining accuracy is low between segmental arc.
The utility model content
The purpose of the utility model is not have special-purpose clamp in the existing packing segmental arc process for solving, machining accuracy low problem in end clearance between segmental arc, and then a kind of steam turbine unit packing segmental arc clamp is provided.
The utility model is to address the above problem the technical scheme of taking to be: a kind of steam turbine unit packing segmental arc clamp of the utility model comprises clamp body and pressing plate; Said clamp body be shaped as rectangle; The length direction of the long side surface upper edge clamp body of clamp body is provided with the convex shaped arc groove that matches with the packing segmental arc; The packing segmental arc is packed in through pressing plate in the convex shaped arc groove of clamp body, and the bottom face of pressing plate is provided with a support rim, and support rim is used to clamp the packing segmental arc.
The beneficial effect of the utility model is: the clamp of the utility model is accurate to the packing segmental arc location of band grinding; Reliable clamping is utilized the cross grinding of the clamp of the utility model to the packing segmental arc, and the depth of parallelism between end face is in the 0.02mm; The segmental arc end clearance reaches in 0.5 ± 0.03mm; Satisfy the processing request of packing segmental arc, improved crudy greatly, working (machining) efficiency is enhanced about more than once.The cutting clamper of the utility model is simple in structure, and is easy to use, and processing effect is good.
Description of drawings
Fig. 1 is the overall structure front view of the utility model, and Fig. 2 is the left view of Fig. 1, and Fig. 3 is the vertical view of Fig. 1; Fig. 4 is the overall structure front view of clamp body, and Fig. 5 is the left view of Fig. 4, and Fig. 6 is the vertical view of Fig. 4; Fig. 7 is the overall structure front view of pressing plate, and Fig. 8 is the left view of Fig. 7.
The specific embodiment
The specific embodiment one: combine Fig. 1-Fig. 8 that this embodiment is described; The packing segmental arc clamp of a kind of steam turbine unit of this embodiment comprises clamp body 1 and pressing plate 2; Said clamp body 1 be shaped as rectangle; The length direction of the long side surface upper edge clamp body 1 of clamp body 1 is provided with the convex shaped arc groove 1-1 that matches with packing segmental arc 4; Packing segmental arc 4 is packed in the convex shaped arc groove 1-1 of clamp body 1 through pressing plate 2, and the bottom face of pressing plate 2 is provided with a support rim 2-2, and support rim 2-2 is used to clamp packing segmental arc 4.
The clamp that utilizes this embodiment is positioned at the packing segmental arc in the convex shaped arc groove of clamp body earlier during to the grinding of packing segmental arc both ends of the surface, and one of them end face stretches out clamp body 10mm; Utilize pressing plate to clamp the packing segmental arc then, the support rim on the pressing plate is of a size of 10mm * 5mm, and support rim is used for the auxiliary packing segmental arc that clamps; Then; On platen, this end face of grinding is after one of them cross grinding is accomplished with the utility model clamps; With same method grinding other end, grinding finishes.
The specific embodiment two: combine Fig. 1-Fig. 3 that this embodiment is described; The said clamp of this embodiment also comprises holding screw 3; Pressing plate 2 is provided with mounting hole 2-1; The thickness direction of clamp body 1 upper edge clamp body 1 that is positioned at the bottom of convex shaped arc groove 1-1 offers a screwed hole 1-4, and packing segmental arc 4 is through being contained in the mounting hole 2-1 on the pressing plate 2 and the holding screw 3 that is threaded with screwed hole 1-4 is clamped on the convex shaped arc groove 1-1 of clamp body 1.So be provided with, connect efficient, easy to use.Other is identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1-Fig. 6 that this embodiment is described; The middle part of the upper surface of the said clamp body 1 of this embodiment is provided with upper groove 1-2 along the length direction of clamp body 1; The middle part of the lower surface of clamp body 1 is provided with low groove 1-3 along the length direction of clamp body 1, and upper groove 1-2 and low groove 1-3 are over against setting.Upper groove of this embodiment and low groove be rectangular recess, size is wide to be 35mm, height is 12mm; Groove is used for outside pressing plate the clamp of the utility model is clamped in platen; So be provided with, easy to use and reliable, meet design requirement and actual needs.Other is identical with the specific embodiment one or two.
Claims (3)
1. steam turbine unit packing segmental arc clamp; It is characterized in that: said clamp comprises clamp body (1) and pressing plate (2); Said clamp body (1) be shaped as rectangle; The length direction of the long side surface upper edge clamp body (1) of clamp body (1) is provided with the convex shaped arc groove (1-1) that matches with packing segmental arc (4); Packing segmental arc (4) is packed in the convex shaped arc groove (1-1) of clamp body (1) through pressing plate (2), and the bottom face of pressing plate (2) is provided with a support rim (2-2), and support rim (2-2) is used to clamp packing segmental arc (4).
2. a kind of steam turbine unit packing segmental arc clamp according to claim 1; It is characterized in that: said clamp also comprises holding screw (3); Pressing plate (2) is provided with mounting hole (2-1); The thickness direction of clamp body (1) upper edge clamp body (1) that is positioned at the bottom of convex shaped arc groove (1-1) offers a screwed hole (1-4), and packing segmental arc (4) is through being contained in the mounting hole (2-1) on the pressing plate (2) and the holding screw (3) that is threaded with screwed hole (1-4) is clamped on the convex shaped arc groove (1-1) of clamp body (1).
3. a kind of steam turbine unit packing segmental arc clamp according to claim 1 and 2; It is characterized in that: the middle part of the upper surface of said clamp body (1) is provided with upper groove (1-2) along the length direction of clamp body (1); The middle part of the lower surface of clamp body (1) is provided with low groove (1-3) along the length direction of clamp body (1), and upper groove (1-2) and low groove (1-3) are over against setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279147 CN202622523U (en) | 2012-06-14 | 2012-06-14 | Grinding clamp of gland segment of turbine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220279147 CN202622523U (en) | 2012-06-14 | 2012-06-14 | Grinding clamp of gland segment of turbine set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202622523U true CN202622523U (en) | 2012-12-26 |
Family
ID=47375766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220279147 Expired - Lifetime CN202622523U (en) | 2012-06-14 | 2012-06-14 | Grinding clamp of gland segment of turbine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202622523U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302569A (en) * | 2013-07-26 | 2013-09-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Swing grinding processing method |
| CN103949858A (en) * | 2014-04-28 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Method for processing steam seal arc segment of power station steam turbine |
| CN104400590A (en) * | 2014-11-19 | 2015-03-11 | 徐州透平密封科技有限公司 | Rapid grinding equipment for back arc profile of steam sealing ring |
| CN105458926A (en) * | 2015-12-31 | 2016-04-06 | 莱芜亚赛陶瓷技术有限公司 | Fixture special for grinding arc ceramic part and application of fixture |
| CN109834481A (en) * | 2019-04-03 | 2019-06-04 | 哈尔滨汽轮机厂有限责任公司 | A kind of positioning device and localization method for processing steam turbine inner gland segmental arc |
| CN112719975A (en) * | 2020-12-22 | 2021-04-30 | 中船重工龙江广瀚燃气轮机有限公司 | Milling device with angle-adjustable fan-shaped part |
-
2012
- 2012-06-14 CN CN 201220279147 patent/CN202622523U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302569A (en) * | 2013-07-26 | 2013-09-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Swing grinding processing method |
| CN103949858A (en) * | 2014-04-28 | 2014-07-30 | 哈尔滨汽轮机厂有限责任公司 | Method for processing steam seal arc segment of power station steam turbine |
| CN103949858B (en) * | 2014-04-28 | 2016-03-23 | 哈尔滨汽轮机厂有限责任公司 | A kind of power station steam turbine packing segmental arc processing method |
| CN104400590A (en) * | 2014-11-19 | 2015-03-11 | 徐州透平密封科技有限公司 | Rapid grinding equipment for back arc profile of steam sealing ring |
| CN105458926A (en) * | 2015-12-31 | 2016-04-06 | 莱芜亚赛陶瓷技术有限公司 | Fixture special for grinding arc ceramic part and application of fixture |
| CN109834481A (en) * | 2019-04-03 | 2019-06-04 | 哈尔滨汽轮机厂有限责任公司 | A kind of positioning device and localization method for processing steam turbine inner gland segmental arc |
| CN109834481B (en) * | 2019-04-03 | 2023-12-05 | 哈尔滨汽轮机厂有限责任公司 | Positioning device and positioning method for processing steam seal arc section in steam turbine |
| CN112719975A (en) * | 2020-12-22 | 2021-04-30 | 中船重工龙江广瀚燃气轮机有限公司 | Milling device with angle-adjustable fan-shaped part |
| CN112719975B (en) * | 2020-12-22 | 2022-07-01 | 中船重工龙江广瀚燃气轮机有限公司 | Milling device with angle-adjustable sector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
|
| CX01 | Expiry of patent term |