CN103292121A - Spherical roller frame special for dummy shaft - Google Patents
Spherical roller frame special for dummy shaft Download PDFInfo
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- CN103292121A CN103292121A CN2013102117636A CN201310211763A CN103292121A CN 103292121 A CN103292121 A CN 103292121A CN 2013102117636 A CN2013102117636 A CN 2013102117636A CN 201310211763 A CN201310211763 A CN 201310211763A CN 103292121 A CN103292121 A CN 103292121A
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- dummy shaft
- fitting seat
- base
- special
- roller
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Abstract
The invention relates to a spherical roller frame special for a dummy shaft. The spherical roller frame comprises a base and a roller mounting seat mounted on the base, a plurality of rollers used for supporting the dummy shaft are mounted on the roller mounting seat through a rotating mechanism, and an axial thrust device used for stopping the dummy shaft from axially moving is arranged on the roller mounting seat. By the spherical roller frame for the dummy shaft, the requirement that standard radial runout of the dummy shaft is smaller than 0.02mm when the dummy shaft is arranged is guaranteed to be met; the corresponding axial thrust device is arranged to prevent the dummy shaft from axially moving during using and rotating of the dummy shaft, so that mounting accuracy is improved, processing, supplying and mounting period is shortened, and waste of mounting time is avoided.
Description
Technical field
What the present invention relates to is a kind of sphere turning rolls, and what be specifically related to is the special-purpose sphere turning rolls of a kind of dummy shaft.
Background technique
The steam turbine dummy shaft is the steam turbine special tool for service, in the process of power plant's overhaul, the crucial Work tool that it uses when being power station maintenance unit, replace turbine rotor to instrument, the checking and measuring as the hollow labyrinth clearance, nest center of axial center's dividing plate in the cylinder of inner centering, it can simulate fully turbine rotor in cylinder to axial center, the hollow nest of dividing plate center, labyrinth clearances etc. are proofreaded and are measured, provide accurate data for finally calculating and adjust through-flow gap of steam turbine, clean boot after the maintenance of assurance steam turbine, economical operation.And because turbine low pressure cylinder is bulky, be multi-layer structure, complex structure, and manufacturing procedure is many, and portion's cover self and relative size required precision height, therefore in total process of assembling, adjust being difficult between 300MW turbine low pressure cylinder general assembly platform position pad case and the dummy shaft, and dummy shaft in use is easy to generate axial float, influence is carried out after accurate localization and centering cause equipment to arrive at the erecting bed thus the relative engagement position of each internal sleeve, installation unit also will pack into the accurate centering of row to inside again, again secondary installing certainly will be caused, the secondary centering in each gap of registration, prolonged processing greatly, the supply of material and installation period cause the waste of installation period.
Summary of the invention
At the deficiency that exists on the prior art, but the present invention seeks to be the special-purpose sphere turning rolls of the dummy shaft that provides a kind of vertical and horizontal to regulate dummy shaft, it prevents that dummy shaft from using the axial float when rotating, and improved the installation validity.
To achieve these goals, the present invention realizes by the following technical solutions:
The special-purpose sphere turning rolls of dummy shaft, it comprises base and the roller fitting seat that is installed on the base, described roller fitting seat is provided with a plurality of for the roller that supports dummy shaft, described roller is installed on the roller fitting seat by rotating mechanism, and described roller fitting seat is provided be used to the axial thrust brake that stops the dummy shaft axial float.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, the bottom of described base is provided with for regulating base the level(l)ing mechanism of displacement is installed, the top of described base is provided with for the circular arc mounting groove that the roller fitting seat is installed, and described roller fitting seat is provided with the circular arc projecting surface suitable with the circular arc mounting groove.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, described roller is provided with two, and the axis symmetry of pass and dummy shaft is installed on the roller fitting seat.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, described rotating mechanism comprises the bearing that is fixed on the stationary axle on the roller fitting seat and is fixed on the stationary axle two ends, and described roller is installed on the stationary axle by bearing, thereby reaches the rotation purpose of roller.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, what described axial thrust brake adopted is baffle plate, and described baffle plate is installed on the side of roller fitting seat and base, is used for keeping out the axial float of dummy shaft.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, the circular arc projecting surface of described roller fitting seat is provided with first pin shaft hole, the circular arc mounting groove of described base is provided with second pin shaft hole corresponding with first pin shaft hole, and described roller fitting seat is fixed on the base it by bearing pin is installed in first pin shaft hole and second pin-and-hole.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, what described roller adopted is that cast tin bronze processes.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, described level(l)ing mechanism comprises the installation leg that is arranged on base bottom, arrange and the mounting hole on the leg is installed and is arranged on adjusting bolt in the mounting hole, described mounting hole can adopt waist shaped hole, is convenient to regulate bolt and regulates base installation displacement at waist shaped hole.
According to the special-purpose sphere turning rolls of above-mentioned dummy shaft, wherein, also be provided with lifting bolt on the described base, easy to use.
The present invention is by arranging the sphere turning rolls that dummy shaft uses, guarantee to satisfy when laying dummy shaft, the circular runout of dummy shaft benchmark is less than 0.02mm, be equipped with corresponding axial thrust brake simultaneously, prevent the axial float when dummy shaft uses rotation, improve the installation validity, shortened processing, the supply of material and installation period, avoided the waste of installation period.
Description of drawings
Describe the present invention in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the structural representation of base of the present invention;
Fig. 4 is the structural representation of roller fitting seat of the present invention;
Fig. 5 is the A-A sectional view of Fig. 4;
Fig. 6 is the B-B sectional view of Fig. 5;
Fig. 7 is the structural representation of baffle plate of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
Referring to Fig. 1 and Fig. 2, the present invention arranges former 300MW turbine low pressure cylinder general assembly platform position pad case to transform, and the special-purpose sphere turning rolls of a kind of dummy shaft proposed, it is for to the adjustment of dummy shaft and fixing, the special-purpose sphere turning rolls of this dummy shaft comprises base 3 and the roller fitting seat 1 that is installed on the base 3, be equipped with a plurality of for the roller 8 that supports dummy shaft at roller fitting seat 1, this roller 8 is installed on the roller fitting seat 1 by rotating mechanism, and described roller fitting seat 1 is provided be used to the axial thrust brake that stops the dummy shaft axial float.
In the present embodiment, roller fitting seat 1 adopts solid forging, and fine finishing forms on numerical control machining center, guarantees each size conforms drawing requirement.Roller 8 is provided with two, is installed on the roller fitting seat 1 with the axial symmetry of placing dummy shaft on the roller fitting seat 1, and the roller 8 that supports dummy shaft adopts cast tin bronze to process, and guarantees that the dummy shaft axle journal can not wear and tear.The bearing 11 that above-mentioned rotating mechanism is fixed on the stationary axle 7 on the roller fitting seat 1 and is fixed on stationary axle 7 two ends, between this stationary axle 7 and the roller fitting seat 1 circlip for shaft 9 is installed, described roller 8 is installed on the stationary axle 7 by bearing 11, thereby reaches the rotation purpose of roller 8.Be provided with between bearing 11 and the roller fitting seat 1 and adjust pad 10, between the outer ledge of bearing 11 and roller 8, be provided with circlip for hole 12, what the selected bearing 11 of present embodiment sphere turning rolls adopted is roller bearing, it is import SKF product, model: 22212, static load: 155KN, dynamic load: 122KN, satisfy the bearing capacity of 2 tons of dummy shafts fully, and the axial runout amount when guaranteeing the dummy shaft running is less than 0.02mm.
2 cast tin bronze rollers are installed on the roller fitting seat 1, and the deviation of beating of roller 8 should be less than 0.02mm, also should be less than 0.02mm with respect to the degree of symmetry at roller 8 centers.Scrape by manual shovel the sphere contacting point of roller 8, and area of contact reaches more than 95%, and the surface of sphere is slightly released souls from purgatory and reached 0.08um.By above measure, to guarantee to satisfy when laying dummy shaft, the circular runout of dummy shaft benchmark is equipped with corresponding axial thrust brake simultaneously less than 0.02mm, prevents the axial float when dummy shaft uses rotation.
What deserves to be mentioned is that referring to Fig. 3 to Fig. 7, what the axial thrust brake of present embodiment adopted is baffle plate 5, described baffle plate 5 is installed on the side of roller fitting seat 1 and base 3, is used for keeping out the axial float of dummy shaft.The top of present embodiment base 3 is processed with for the circular arc mounting groove 32 that roller fitting seat 1 is installed, and is positioned at circular arc mounting groove 32 two ends at base 3 lifting bolt 4 is installed, and is easy to use.Described roller fitting seat 1 is provided with the circular arc projecting surface 13 suitable with circular arc mounting groove 32.The circular arc projecting surface 13 of roller fitting seat 1 is provided with first pin shaft hole 14, the circular arc mounting groove of described base 3 is provided with second pin shaft hole 33 corresponding with first pin shaft hole 14, and described roller fitting seat 1 is fixed on the base 3 it by bearing pin 2 is installed in first pin shaft hole 14 and second pin-and-hole 33.
In addition, the bottom of base 3 is provided with for regulating base 3 level(l)ing mechanism of displacement is installed, this level(l)ing mechanism comprises the installation leg 30 that is arranged on the base bottom, arrange and the mounting hole 31 on the leg 30 is installed and is arranged on adjusting bolt 6 in the mounting hole 31, the mounting hole 31 of present embodiment can be processed as waist shaped hole, be convenient to regulate bolt 6 and regulate base 3 installation displacements at waist shaped hole, present embodiment is installed leg 30 and is provided with two, four corners of difference base for supporting 3, each is installed leg 30 two ends and processes mounting hole 31, regulating bolt 6 is fixed on the fixed bolster case that is positioned at base 3 belows by mounting hole 31, the level of sphere turning rolls of the present invention is regulated by 4 on the fixed bolster case 6 on bolts of adjusting and is realized that manual tune, regulation range reach ± 30mm.
In the present embodiment, it is as follows that important technological parameters is transformed in turbine low pressure cylinder general assembly platform position:
1, the basic center height of dummy shaft: 4700mm
2, the special-purpose sphere turning rolls of dummy shaft centre distance: 8000mm
4, the special-purpose sphere turning rolls of dummy shaft
Two groups of specified carrying: 〉=5T()
Roller diameter: ф 150mm
Roller widths: 180mm
Roller material: cast tin bronze
Horizontal regulation range :-30～+ 30mm
Range of vertical adjustment: 0～+ 35mm
Base plate size is 1200mm * 700mm, and upper head plate is of a size of 1200mm * 450mm.
The present invention is by arranging the sphere turning rolls that dummy shaft uses, guarantee to satisfy when laying dummy shaft, the circular runout of dummy shaft benchmark is less than 0.02mm, be equipped with corresponding axial thrust brake simultaneously, prevent the axial float when dummy shaft uses rotation, improve the installation validity, shortened processing, the supply of material and installation period, avoided the waste of installation period.
More than show and described basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (9)
1. the special-purpose sphere turning rolls of dummy shaft, it is characterized in that, it comprises base and the roller fitting seat that is installed on the base, described roller fitting seat is provided with a plurality of for the roller that supports dummy shaft, described roller is installed on the roller fitting seat by rotating mechanism, and described roller fitting seat is provided be used to the axial thrust brake that stops the dummy shaft axial float.
2. the special-purpose sphere turning rolls of dummy shaft according to claim 1, it is characterized in that, the bottom of described base is provided with for regulating base the level(l)ing mechanism of displacement is installed, the top of described base is provided with for the circular arc mounting groove that the roller fitting seat is installed, and described roller fitting seat is provided with the circular arc projecting surface suitable with the circular arc mounting groove.
3. the special-purpose sphere turning rolls of dummy shaft according to claim 1 it is characterized in that described roller is provided with two, and the axis symmetry of pass and dummy shaft is installed on the roller fitting seat.
4. according to the special-purpose sphere turning rolls of any described dummy shaft of claim 1 to 3, it is characterized in that, described rotating mechanism comprises the bearing that is fixed on the stationary axle on the roller fitting seat and is fixed on the stationary axle two ends, and described roller is installed on the stationary axle by bearing.
5. the special-purpose sphere turning rolls of dummy shaft according to claim 1 is characterized in that what described axial thrust brake adopted is baffle plate, and described baffle plate is installed on the side of roller fitting seat and base.
6. the special-purpose sphere turning rolls of dummy shaft according to claim 2, it is characterized in that, the circular arc projecting surface of described roller fitting seat is provided with first pin shaft hole, the circular arc mounting groove of described base is provided with second pin shaft hole corresponding with first pin shaft hole, and described roller fitting seat is fixed on the base it by bearing pin is installed in first pin shaft hole and second pin-and-hole.
7. according to the special-purpose sphere turning rolls of any described dummy shaft of claim 1 to 3, it is characterized in that what described roller adopted is that cast tin bronze processes.
8. the special-purpose sphere turning rolls of dummy shaft according to claim 2 is characterized in that, described level(l)ing mechanism comprises the installation leg that is arranged on the base bottom, arrange and the mounting hole on the leg is installed and is arranged on adjusting bolt in the mounting hole.
9. the special-purpose sphere turning rolls of dummy shaft according to claim 2 is characterized in that, also is provided with lifting bolt on the described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211763.6A CN103292121B (en) | 2013-05-31 | 2013-05-31 | Spherical roller frame special for dummy shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310211763.6A CN103292121B (en) | 2013-05-31 | 2013-05-31 | Spherical roller frame special for dummy shaft |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103292121A true CN103292121A (en) | 2013-09-11 |
| CN103292121B CN103292121B (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310211763.6A Active CN103292121B (en) | 2013-05-31 | 2013-05-31 | Spherical roller frame special for dummy shaft |
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| Country | Link |
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| CN (1) | CN103292121B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629494A (en) * | 2013-11-13 | 2014-03-12 | 芜湖华强文化科技产业有限公司 | Roller support |
| CN112317565A (en) * | 2020-11-03 | 2021-02-05 | 杭州集智机电股份有限公司 | Rotatable self-adaptive support device for straightening machine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS271375B1 (en) * | 1988-08-22 | 1990-09-12 | Vlastimil Ing Teper | Device for voluminous cylindrical or conical bodies positioning |
| CN201565772U (en) * | 2009-12-11 | 2010-09-01 | 张家港市伟业机械制造有限公司 | Steam turbine rotor assembly device |
| CN101949697A (en) * | 2010-09-16 | 2011-01-19 | 安阳鑫盛机床股份有限公司 | High-precision inspection device for large size machine tool spindle |
| CN102144118A (en) * | 2008-09-05 | 2011-08-03 | 弗朗茨·米奇 | Horizontally and vertically adjustable bearing |
| CN102225538A (en) * | 2010-11-29 | 2011-10-26 | 天津市正平机械新技术有限公司 | Spherical support device |
| CN202174524U (en) * | 2011-07-18 | 2012-03-28 | 秦皇岛爱迪电力设备制造厂 | Special support for overhauling rotors of turbines |
| CN202580505U (en) * | 2012-04-24 | 2012-12-05 | 青岛松灵电力环保设备有限公司 | Low speed heavy load riding wheel assembly |
| CN202780899U (en) * | 2012-08-10 | 2013-03-13 | 上海沪东三造船舶配套有限公司 | Idler wheel cradle device capable of avoiding surface indentations of components |
| CN203375106U (en) * | 2013-05-31 | 2014-01-01 | 张家港市伟业机械制造有限公司 | Spherical surface roller carrier special for dummy shaft |
-
2013
- 2013-05-31 CN CN201310211763.6A patent/CN103292121B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CS271375B1 (en) * | 1988-08-22 | 1990-09-12 | Vlastimil Ing Teper | Device for voluminous cylindrical or conical bodies positioning |
| CN102144118A (en) * | 2008-09-05 | 2011-08-03 | 弗朗茨·米奇 | Horizontally and vertically adjustable bearing |
| CN201565772U (en) * | 2009-12-11 | 2010-09-01 | 张家港市伟业机械制造有限公司 | Steam turbine rotor assembly device |
| CN101949697A (en) * | 2010-09-16 | 2011-01-19 | 安阳鑫盛机床股份有限公司 | High-precision inspection device for large size machine tool spindle |
| CN102225538A (en) * | 2010-11-29 | 2011-10-26 | 天津市正平机械新技术有限公司 | Spherical support device |
| CN202174524U (en) * | 2011-07-18 | 2012-03-28 | 秦皇岛爱迪电力设备制造厂 | Special support for overhauling rotors of turbines |
| CN202580505U (en) * | 2012-04-24 | 2012-12-05 | 青岛松灵电力环保设备有限公司 | Low speed heavy load riding wheel assembly |
| CN202780899U (en) * | 2012-08-10 | 2013-03-13 | 上海沪东三造船舶配套有限公司 | Idler wheel cradle device capable of avoiding surface indentations of components |
| CN203375106U (en) * | 2013-05-31 | 2014-01-01 | 张家港市伟业机械制造有限公司 | Spherical surface roller carrier special for dummy shaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103629494A (en) * | 2013-11-13 | 2014-03-12 | 芜湖华强文化科技产业有限公司 | Roller support |
| CN112317565A (en) * | 2020-11-03 | 2021-02-05 | 杭州集智机电股份有限公司 | Rotatable self-adaptive support device for straightening machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103292121B (en) | 2015-08-19 |
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