CN102091961B - Wheel disc locking and positioning pin for turbine - Google Patents
Wheel disc locking and positioning pin for turbine Download PDFInfo
- Publication number
- CN102091961B CN102091961B CN2009102505086A CN200910250508A CN102091961B CN 102091961 B CN102091961 B CN 102091961B CN 2009102505086 A CN2009102505086 A CN 2009102505086A CN 200910250508 A CN200910250508 A CN 200910250508A CN 102091961 B CN102091961 B CN 102091961B
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- shank
- hole
- pin
- sliding plug
- slide block
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Abstract
A wheel disc locking and positioning pin for a turbine relates to a wheel disc positioning pin for a turbine. The wheel disc locking and positioning pin aims at solving the problem that the assembling accuracy is directly influenced by a certain gap between a common positioning pin and a pin hole when the common positioning pin is adopted for determining the relative position relationship between a turbine wheel disc and a clamp base of a machine tool. An adjusting bolt penetrates through a supporting sleeve and is connected with a sliding plug by threads, limiting pins are arranged in a long through hole of the sliding plug and a pin hole of the pin body, a sliding block is arranged in a radial through hole of the pin body, a pin block which is detachably connected with the pin body is arranged in a large groove of the pin body, a locking block which is detachably connected with the sliding block is arranged in a small groove of the pin body, the lower end of the sliding plug is arranged in an upper groove of the sliding block, the lower end of the side wall of the sliding plug is matched with the inclined side wall of the upper groove of the sliding block, an elastic screw is connected with the pin body by threads, and the end part of the elastic screw pushes against the side wall of the plane of the sliding plug. The wheel disc locking and positioning pin can position the wheel disc of the turbine on the machine tool.
Description
Technical field
The present invention relates to a kind of steam turbine wheel disc alignment pin.
Background technology
In the steam turbine wheel disc process, when clamping, need confirm the relative position relation between itself and the jig base by alignment pin.Unavoidably will have certain clearance between common alignment pin and the pin-and-hole, this gap has directly influenced assembly precision, and in the high clamping of requirement on machining accuracy, the gap between alignment pin and pin-and-hole becomes the bottleneck problem of processing.
Summary of the invention
The purpose of this invention is to provide a kind of steam turbine wheel disc locking positioning pin; To solve in the steam turbine wheel disc process; Adopt common alignment pin to confirm the relative position relation between steam turbine wheel disc and the jig base; Because have certain clearance between common alignment pin and the pin-and-hole, this gap has directly influenced the problem of assembly precision.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: locking positioning pin of the present invention comprises adjustment bolt, splicing sleeve, shank, slide block, key, sliding plug, spacer pin, latch segment, elasticity screw and pin block; Said splicing sleeve is arranged on the upper surface of shank and the two removably connects, and the upper surface of shank is provided with axial center hole, and the sidewall of shank is provided with the radial direction through hole that communicates with the axial center hole of shank; Said sliding plug is contained in the axial center hole of shank, and the upper surface of sliding plug is provided with screwed hole of centre, and said adjustment bolt passes splicing sleeve and is threaded with sliding screwed hole of centre beyond the Great Wall; It is axially arranged with long through-hole the sidewall upper edge of sliding plug, and the long through-hole of sliding plug is positioned at the lower end of the screwed hole of centre of sliding plug, and the sidewall of shank is provided with pin-and-hole; In the long through-hole of sliding plug and the pin-and-hole of shank spacer pin is housed, sliding plug is connected through spacer pin with shank, in the radial direction through hole of shank slide block is housed; Slide block is connected through key with shank, and respectively is provided with a big groove and a little groove on the sidewall of the corresponding shank of radial direction through hole of shank, in the big groove of shank pin block is housed; Pin block and shank removably connect; In the little groove of shank latch segment is housed, latch segment and slide block removably connect, and the upper surface of slide block is provided with upper groove; The sidewall that the upper groove of slide block and latch segment are adjacent is the oblique sidewall to the latch segment lopsidedness; The lower end of sliding plug is arranged in the upper groove of slide block, and the lower end of sliding plug sidewall matches with the oblique sidewall of the upper groove of slide block, and slide block is provided with radially tapped through hole; The elasticity screw is threaded with the radially tapped through hole of slide block; Lower end and the elasticity screw corresponding section of sliding plug sidewall are flat sidewall, and the end of elasticity screw leans on the flat sidewall of sliding plug, and the lower surface of shank is provided with along the circumference uniform distribution of shank at least three tight screw hole and a cylinder pin hole.
The present invention has following beneficial effect: the present invention can eliminate the gap between alignment pin and the steam turbine wheel disc pin-and-hole accurately with steam turbine wheel disc and lathe location, has guaranteed the precision of processing.This locking type alignment pin is used for the location between steam turbine wheel disc and the platen.
Description of drawings
Fig. 1 is an overall structure front view of the present invention, and Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
The specific embodiment one: combine Fig. 1 and Fig. 2 that this embodiment is described, the locking positioning pin of this embodiment comprises adjustment bolt 1, splicing sleeve 4, shank 7, slide block 12, key 13, sliding plug 6, spacer pin 8, latch segment 14, elasticity screw 11 and pin block 10; Said splicing sleeve 4 is arranged on the upper surface of shank 7 and the two removably connects, and the upper surface of shank 7 is provided with axial center hole, and the sidewall of shank 7 is provided with the radial direction through hole that communicates with the axial center hole of shank 7; Said sliding plug 6 is contained in the axial center hole of shank 7, and the upper surface of sliding plug 6 is provided with screwed hole of centre, and the screwed hole of centre on said adjustment bolt 1 passes splicing sleeve 4 and slides plug 6 is threaded; It is axially arranged with long through-hole 6-1 the sidewall upper edge of sliding plug 6, and the long through-hole 6-1 of sliding plug 6 is positioned at the lower end of the screwed hole of centre of sliding plug 6, and the sidewall of shank 7 is provided with pin-and-hole; In the long through-hole 6-1 of sliding plug 6 and the pin-and-hole of shank 7 spacer pin 8 is housed; Sliding plug 6 is connected through spacer pin 8 with shank 7, and slide block 12 is housed in the radial direction through hole of shank 7, and slide block 12 is connected through key 13 with shank 7; With respectively be provided with a big groove and a little groove on the sidewall of the corresponding shank 7 of the radial direction through hole of shank 7; Pin block 10 is housed in the big groove of shank 7, and pin block 10 removably connects with shank 7, in the little groove of shank 7 latch segment 14 is housed; Latch segment 14 removably connects with slide block 12; The upper surface of slide block 12 is provided with upper groove 12-1, and the upper groove 12-1 of slide block 12 and latch segment 14 adjacent sidewalls are the oblique sidewall 12-2 to latch segment 14 lopsidedness, and the lower end of sliding plug 6 is arranged in the upper groove 12-1 of slide block 12; And match with the oblique sidewall 12-2 of the upper groove 12-1 of slide block 12 in the lower end of sliding plug 6 sidewalls; Slide block 12 is provided with radially tapped through hole, and elasticity screw 11 is threaded with the radially tapped through hole of slide block 12, and the lower end and elasticity screw 11 corresponding sections of sliding plug 6 sidewalls are flat sidewall 6-2; The end of elasticity screw 11 leans on the flat sidewall 6-2 of sliding plug 6, and the lower surface of shank 7 is provided with along the circumference uniform distribution of shank 7 at least three tight screw hole 7-1 and a cylinder pin hole 7-2.
The specific embodiment two: combine Fig. 1 that this embodiment is described, this embodiment with the difference of the specific embodiment one is: the locking positioning pin of this embodiment also comprises back-up ring 15; Said back-up ring 15 is sleeved on the slide block 12, and leans on mutually with latch segment 14.
The specific embodiment three: combine Fig. 1 that this embodiment is described, this embodiment with the specific embodiment one or two difference is: the locking positioning pin of this embodiment also comprises two nuts 5; Said adjustment bolt 1 is threaded with two nuts 5, and two nuts 5 are between splicing sleeve 4 and sliding plug 6.Increased by two nuts 5, can shorten the length of sliding plug 6, be beneficial to processing sliding plug 6.
Operation principle is: locking positioning pin of the present invention is through the mode of knob adjustment bolt; Driving sliding plug promotes in effective travel; Promote slide block through the elasticity screw and move, drive latch segment and steam turbine wheel disc pin-and-hole wall and fit, thereby reach the effect of eliminating the gap.Mode through elasticity locking has effectively been eliminated the gap between this locking positioning pin and the steam turbine wheel disc pin-and-hole.
Claims (3)
1. steam turbine wheel disc locking positioning pin is characterized in that: said locking positioning pin comprises adjustment bolt (1), splicing sleeve (4), shank (7), slide block (12), key (13), sliding plug (6), spacer pin (8), latch segment (14), elasticity screw (11) and pin block (10); Said splicing sleeve (4) is arranged on the upper surface of shank (7) and the two removably connects; The upper surface of shank (7) is provided with axial center hole; The sidewall of shank (7) is provided with the radial direction through hole that communicates with the axial center hole of shank (7), and said sliding plug (6) is contained in the axial center hole of shank (7), and the upper surface of sliding plug (6) is provided with screwed hole of centre; Said adjustment bolt (1) passes splicing sleeve (4) and is threaded with the sliding screwed hole of centre of filling on (6); It is axially arranged with long through-hole (6-1) the sidewall upper edge of sliding plug (6), and the long through-hole (6-1) of sliding plug (6) is positioned at the lower end of the screwed hole of centre of sliding plug (6), and the sidewall of shank (7) is provided with pin-and-hole; In the long through-hole (6-1) of sliding plug (6) and the pin-and-hole of shank (7) spacer pin (8) is housed; Sliding plug (6) is connected through spacer pin (8) with shank (7), and slide block (12) is housed in the radial direction through hole of shank (7), and slide block (12) is connected through key (13) with shank (7); With respectively be provided with a big groove and a little groove on the sidewall of the corresponding shank of radial direction through hole (7) of shank (7); Pin block (10) is housed in the big groove of shank (7), and pin block (10) removably connects with shank (7), and latch segment (14) is housed in the little groove of shank (7); Latch segment (14) removably connects with slide block (12); The upper surface of slide block (12) is provided with upper groove (12-1), and the sidewall that the upper groove (12-1) of slide block (12) is adjacent with latch segment (14) is the oblique sidewall (12-2) to latch segment (14) lopsidedness, and the lower end of sliding plug (6) is arranged in the upper groove (12-1) of slide block (12); And match with the oblique sidewall (12-2) of the upper groove (12-1) of slide block (12) in the lower end of sliding plug (6) sidewall; Slide block (12) is provided with radially tapped through hole, and elasticity screw (11) is threaded with the radially tapped through hole of slide block (12), and the lower end and elasticity screw (11) corresponding section of sliding plug (6) sidewall are flat sidewall (6-2); The end of elasticity screw (11) leans on the flat sidewall (6-2) of sliding plug (6), and the lower surface of shank (7) is provided with along the circumference uniform distribution of shank (7) at least three a tight screw hole (7-1) and a cylinder pin hole (7-2).
2. steam turbine wheel disc locking positioning pin according to claim 1, it is characterized in that: said locking positioning pin also comprises back-up ring (15); Said back-up ring (15) is sleeved on the slide block (12), and leans on mutually with latch segment (14).
3. steam turbine wheel disc locking positioning pin according to claim 1 and 2, it is characterized in that: said locking positioning pin also comprises two nuts (5); Said adjustment bolt (1) is threaded with two nuts (5), and two nuts (5) are positioned between splicing sleeve (4) and the sliding plug (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102505086A CN102091961B (en) | 2009-12-14 | 2009-12-14 | Wheel disc locking and positioning pin for turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102505086A CN102091961B (en) | 2009-12-14 | 2009-12-14 | Wheel disc locking and positioning pin for turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102091961A CN102091961A (en) | 2011-06-15 |
| CN102091961B true CN102091961B (en) | 2012-05-02 |
Family
ID=44125324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102505086A Active CN102091961B (en) | 2009-12-14 | 2009-12-14 | Wheel disc locking and positioning pin for turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102091961B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109989985B (en) * | 2017-12-29 | 2024-05-10 | 上汽通用五菱汽车股份有限公司 | Sliding plate self-jacking type positioning bolt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274657A (en) * | 1999-05-24 | 2000-11-29 | Smc株式会社 | Clamp device |
| CN201086199Y (en) * | 2007-07-27 | 2008-07-16 | 东风汽车有限公司设备制造厂 | High-accuracy, high-rigidity positioning system for frequently positioning |
| CN201275697Y (en) * | 2008-08-15 | 2009-07-22 | 潍坊盛瑞动力机械科技有限公司 | Locating device for positioning pin |
| JP2009174512A (en) * | 2008-01-24 | 2009-08-06 | Heiwa Sangyo Kk | Turbine blade fixing device and turbine blade machining method |
| CN201596910U (en) * | 2009-12-14 | 2010-10-06 | 哈尔滨汽轮机厂有限责任公司 | Steam turbine disk locking positioning pin |
-
2009
- 2009-12-14 CN CN2009102505086A patent/CN102091961B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274657A (en) * | 1999-05-24 | 2000-11-29 | Smc株式会社 | Clamp device |
| CN201086199Y (en) * | 2007-07-27 | 2008-07-16 | 东风汽车有限公司设备制造厂 | High-accuracy, high-rigidity positioning system for frequently positioning |
| JP2009174512A (en) * | 2008-01-24 | 2009-08-06 | Heiwa Sangyo Kk | Turbine blade fixing device and turbine blade machining method |
| CN201275697Y (en) * | 2008-08-15 | 2009-07-22 | 潍坊盛瑞动力机械科技有限公司 | Locating device for positioning pin |
| CN201596910U (en) * | 2009-12-14 | 2010-10-06 | 哈尔滨汽轮机厂有限责任公司 | Steam turbine disk locking positioning pin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102091961A (en) | 2011-06-15 |
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