CN203636399U - Fixture for thin-walled shaft parts of steam turbines - Google Patents
Fixture for thin-walled shaft parts of steam turbines Download PDFInfo
- Publication number
- CN203636399U CN203636399U CN201320791348.8U CN201320791348U CN203636399U CN 203636399 U CN203636399 U CN 203636399U CN 201320791348 U CN201320791348 U CN 201320791348U CN 203636399 U CN203636399 U CN 203636399U
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- China
- Prior art keywords
- base
- half ring
- thin
- shaped pressuring
- threaded screw
- 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 - Fee Related
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- 230000000875 corresponding Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The utility model discloses a fixture for thin-walled shaft parts of steam turbines. The fixture comprises two semicircular pressure plates, a circular base and compression screws. The two semicircular pressure plates are symmetrically arranged to form a circular plate, screw holes are formed in the semicircular plates, the compression screws are mounted in the screw holes, a positioning seam is formed in the base, at least two threaded lead screws are fixedly arranged on the base, nuts are arranged on the threaded lead screws, through holes corresponding to the threaded lead screws are formed in the semicircular pressure plates, and the semicircular pressure plates sleeve the threaded lead screws via the through holes and are fixed onto the base by the aid of the nuts. The fixture has the advantages that the thin-walled shaft parts with different lengths can be clamped by the fixture, and accordingly the equipment utilization rate can be greatly increased.
Description
Technical field
The utility model relates to a kind of axle class centering clamping tool, relates in particular to a kind of turbine shaft class clamp for thin-walled part.
Background technology
Steam turbine has a lot of axle class thin-walled revolution parts, and its internal diameter is mostly between 200-360mm, and length is greater than 1500mm, and wall thickness is less than 7mm, and after processing, cylindricity should be less than 0.02mm.This class part is in the time of fine turning outer circle, and the improper part that very easily causes of clamping deforms because clamping force is excessive, even assemble silently at thin-wall part endoporus, owing to there being the magnitude of interference, the outer fenestra of pulling down after thin-wall part silently can deform.
In order to address the above problem, following technology is proposed in prior art:
As China Patent No. " 200720117742.8 " discloses a kind of clamping bulkhead for rotation of steam turbine shaft type thin wall parts, its open day is on October 01st, 2008, and clamping is silently made up of two and half ring-shaped pressuring plates, base and housing screw described in its technical scheme; Base is annular, and base is provided with positioning spigot, and two and half ring-shaped pressuring plates are symmetrical arranged a Circular Plate of composition, and Circular Plate is packed on base, and half ring-shaped pressuring plate is provided with screw, and housing screw is arranged in screw.But in actual use, because base and half ring-shaped pressuring plate are bolted, and the height of base is changeless, and therefore this clamping is silently only applicable to the thin-walled parts of clamping length, exist the defect of the low and narrow application range of utilization rate.
Summary of the invention
The purpose of this utility model is to solve the above-mentioned problems in the prior art, and a kind of turbine shaft class clamp for thin-walled part is provided, and the axle class thin-walled parts that the utility model can clamping different length can significantly improve the utilization rate of equipment.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of turbine shaft class clamp for thin-walled part, formed by two and half ring-shaped pressuring plates, annular base and housing screw, two and half ring-shaped pressuring plates are symmetrical arranged and form a Circular Plate, on half ring-shaped pressuring plate, be provided with screw, housing screw is arranged in screw, on base, be provided with positioning spigot, it is characterized in that: on described base, be fixedly installed at least two threaded screw rods, on described threaded screw rod, be provided with nut, on described half ring-shaped pressuring plate, be provided with the through hole corresponding with threaded screw rod, half ring-shaped pressuring plate is set on threaded screw rod by through hole, and is fixed on base by nut.
The quantity of described threaded screw rod is four, and every two threaded screw rods are connected with one and half ring-shaped pressuring plates.
Described threaded screw rod top is provided with hook, and the upper surface of described half ring-shaped pressuring plate is provided with hanging ring.
Employing the utility model has the advantage of:
One,, in the utility model, by the cooperation of threaded screw rod and through hole, can regulate easily the distance between half ring-shaped pressuring plate and base, use same equipment, part that just can clamping different length, has not only significantly connect the utilization rate of equipment high, has also saved production cost.
Two, in the utility model, the quantity of described threaded screw rod is four, and every two threaded screw rods are connected with one and half ring-shaped pressuring plates, and this structure is conducive to improve the stability of half ring-shaped pressuring plate on threaded screw rod, to the compression better effects if of part, thereby can improve the turning accuracy of part.
Three, in the utility model, described threaded screw rod top is provided with hook, and the upper surface of described half ring-shaped pressuring plate is provided with hanging ring, and it is upper that half ring-shaped pressuring plate can hang over hook by hanging ring, is convenient to the placement of part.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure, be labeled as: 1, base, 2, half ring-shaped pressuring plate, 3, housing screw, 4, positioning spigot, 5, threaded screw rod, 6, nut, 7, hook, 8, hanging ring.
The specific embodiment
A kind of turbine shaft class clamp for thin-walled part, by two and half ring-shaped pressuring plates 2, annular base 1 and housing screw 3 form, two and half ring-shaped pressuring plates 2 are symmetrical arranged and form a Circular Plate, on half ring-shaped pressuring plate 2, be provided with screw, housing screw 3 is arranged in screw, on base 1, be provided with positioning spigot 4, on described base 1, be fixedly installed at least two threaded screw rods 5, on described threaded screw rod 5, be provided with nut 6, on described half ring-shaped pressuring plate 2, be provided with the through hole corresponding with threaded screw rod 5, half ring-shaped pressuring plate 2 is set on threaded screw rod 5 by through hole, and be fixed on base 1 by nut 6.
In the utility model, the quantity of described threaded screw rod 5 is preferably set to four, is symmetricly set on respectively the both sides of annular base 1, and every two threaded screw rods 5 are connected with one and half ring-shaped pressuring plates 2.
In the utility model, in order to improve the clamping efficiency of part, hook 7 is preferably set at described threaded screw rod 5 tops, at the upper surface of described half ring-shaped pressuring plate 2, hanging ring 8 is set.
Operation principle of the present utility model is: first half ring-shaped pressuring plate 2 is hung on hook 7 by hanging ring 8, again the positioning boss of thin-walled parts is placed in the positioning spigot 4 on base 1, then half ring-shaped pressuring plate 2 is put down from linking up with 7, until housing screw 3 contacts with part, again by nut 6 stationary half pressing plates 2, make housing screw 3 hold out against the ring flange end face of part, so just can carry out turning to part.In the time need to processing the part of different length, only need to regulate the distance between half ring-shaped pressuring plate 2 and base 1 just can realize.
Claims (3)
1. a turbine shaft class clamp for thin-walled part, by two and half ring-shaped pressuring plates (2), annular base (1) and housing screw (3) composition, two and half ring-shaped pressuring plates (2) are symmetrical arranged and form a Circular Plate, half ring-shaped pressuring plate is provided with screw on (2), housing screw (3) is arranged in screw, on base (1), be provided with positioning spigot (4), it is characterized in that: on described base (1), be fixedly installed at least two threaded screw rods (5), on described threaded screw rod (5), be provided with nut (6), on described half ring-shaped pressuring plate (2), be provided with the through hole corresponding with threaded screw rod (5), half ring-shaped pressuring plate (2) is set on threaded screw rod (5) by through hole, and be fixed on base (1) by nut (6).
2. turbine shaft class clamp for thin-walled part as claimed in claim 1, is characterized in that: the quantity of described threaded screw rod (5) is four, every two threaded screw rods (5) are connected with one and half ring-shaped pressuring plates (2).
3. turbine shaft class clamp for thin-walled part as claimed in claim 1 or 2, is characterized in that: described threaded screw rod (5) top is provided with hook (7), and the upper surface of described half ring-shaped pressuring plate (2) is provided with hanging ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791348.8U CN203636399U (en) | 2013-12-05 | 2013-12-05 | Fixture for thin-walled shaft parts of steam turbines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320791348.8U CN203636399U (en) | 2013-12-05 | 2013-12-05 | Fixture for thin-walled shaft parts of steam turbines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203636399U true CN203636399U (en) | 2014-06-11 |
Family
ID=50867678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320791348.8U Expired - Fee Related CN203636399U (en) | 2013-12-05 | 2013-12-05 | Fixture for thin-walled shaft parts of steam turbines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203636399U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177014A (en) * | 2016-06-28 | 2018-06-19 | 昆山科森科技股份有限公司 | For the not damaged doffer of precision workpiece |
| CN112775687A (en) * | 2021-03-18 | 2021-05-11 | 重庆建设车用空调器有限责任公司 | Universal clamp for machining front and rear end plates of vehicle air-conditioning compressor |
-
2013
- 2013-12-05 CN CN201320791348.8U patent/CN203636399U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177014A (en) * | 2016-06-28 | 2018-06-19 | 昆山科森科技股份有限公司 | For the not damaged doffer of precision workpiece |
| CN112775687A (en) * | 2021-03-18 | 2021-05-11 | 重庆建设车用空调器有限责任公司 | Universal clamp for machining front and rear end plates of vehicle air-conditioning compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20141205 |
|
| EXPY | Termination of patent right or utility model |