CN103292121B - Spherical roller frame special for dummy shaft - Google Patents
Spherical roller frame special for dummy shaft Download PDFInfo
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- CN103292121B CN103292121B CN201310211763.6A CN201310211763A CN103292121B CN 103292121 B CN103292121 B CN 103292121B CN 201310211763 A CN201310211763 A CN 201310211763A CN 103292121 B CN103292121 B CN 103292121B
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- roller
- fitting seat
- dummy shaft
- base
- roller fitting
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Abstract
What the present invention relates to is a kind of spherical roller frame special for dummy shaft, it comprises base and is arranged on the roller fitting seat on base, described roller fitting seat is provided with a plurality of roller for supporting dummy shaft, described roller is installed on roller fitting seat by rotating mechanism, described roller fitting seat is provided with the axial thrust brake for stopping dummy shaft axial float.The spherical roller frame that the present invention uses by arranging dummy shaft, guarantee to meet when laying dummy shaft, the circular runout of dummy shaft benchmark is less than 0.02mm, be equipped with corresponding axial thrust brake simultaneously, axial float when preventing dummy shaft use from rotating, improve installation validity, shorten processing, the supply of material and installation period, avoid the waste of installation period.
Description
Technical field
What the present invention relates to is a kind of spherical roller frame, and what be specifically related to is a kind of spherical roller frame special for dummy shaft.
Background technique
Steam turbine dummy shaft is steam turbine special tool for service, in the process of power plant's overhaul, its crucial Work tool used when being power station maintenance unit, replace turbine rotor to the instrument of inner centering, checking and measuring as labyrinth clearance, axial center dividing plate Wa Wo center in cylinder, it can simulate turbine rotor shaft center in cylinder completely, dividing plate Wa Wo center, labyrinth clearances etc. carry out proofreading and measuring, there is provided accurate data for finally calculating and adjust through-flow gap of steam turbine, ensure the rear clean boot of steam turbine maintenance, economical operation.And due to turbine low pressure cylinder bulky, for multi-layer structure, complex structure, and manufacturing procedure is many, and self is overlapped by portion and relative size required precision is high, therefore in total process of assembling, be difficult to adjust between 300MW turbine low pressure cylinder General assembling table position pad case and dummy shaft, and dummy shaft in use easily produces axial float, after impact is located accurately to the relative engagement position of each internal sleeve and centering causes equipment to arrive at erecting bed thus, installation unit also will pack into the accurate centering of row to inside again, again gap, registration each portion, secondary installing certainly will be caused, secondary centering, substantially prolongs processing, the supply of material and installation period, cause the waste of installation period.
Summary of the invention
For the deficiency that prior art exists, the present invention seeks to be to provide a kind of and can regulate the spherical roller frame special for dummy shaft of dummy shaft by vertical and horizontal, it prevents dummy shaft from using axial float when rotating, improves installation validity.
To achieve these goals, the present invention realizes by the following technical solutions:
Spherical roller frame special for dummy shaft, it comprises base and is arranged on the roller fitting seat on base, described roller fitting seat is provided with a plurality of roller for supporting dummy shaft, described roller is installed on roller fitting seat by rotating mechanism, described roller fitting seat is provided with the axial thrust brake for stopping dummy shaft axial float.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, the bottom of described base is provided with the level(l)ing mechanism installing displacement for adjusting base, the top of described base is provided with the circular arc mounting groove for installing roller fitting seat, and described roller fitting seat is provided with the circular arc projecting surface suitable with circular arc mounting groove.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, described roller is provided with two, and pass is arranged on roller fitting seat with the axisymmetrical of dummy shaft.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, described rotating mechanism comprises the stationary axle be fixed on roller fitting seat and the bearing being fixed on stationary axle two ends, and described roller is arranged on stationary axle by bearing, thus reaches the rotation object of roller.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, what described axial thrust brake adopted is baffle plate, and described baffle plate is arranged on a side of roller fitting seat and base, for keeping out the axial float of dummy shaft.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, the circular arc projecting surface of described roller fitting seat is provided with the first pin shaft hole, the circular arc mounting groove of described base is provided with second pin shaft hole corresponding with the first pin shaft hole, and described roller fitting seat makes it be fixed on base by installing bearing pin in the first pin shaft hole and the second pin-and-hole.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, what described roller adopted is that cast tin bronze processes.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, described level(l)ing mechanism comprises the installation leg being arranged on base bottom, the adjusting bolt arranging the mounting hole on installation leg and be arranged in mounting hole, described mounting hole can adopt waist shaped hole, is convenient to adjusting bolt and installs displacement at waist shaped hole adjusting base.
According to above-mentioned spherical roller frame special for dummy shaft, wherein, described base is also provided with lifting bolt, easy to use.
The spherical roller frame that the present invention uses by arranging dummy shaft, guarantee to meet when laying dummy shaft, the circular runout of dummy shaft benchmark is less than 0.02mm, be equipped with corresponding axial thrust brake simultaneously, axial float when preventing dummy shaft use from rotating, improve installation validity, shorten processing, the supply of material and installation period, avoid the waste of installation period.
Accompanying drawing explanation
The present invention is described 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
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
See Fig. 1 and Fig. 2, the present invention arranges former 300MW turbine low pressure cylinder General assembling table position pad case to transform, and a kind of spherical roller frame special for dummy shaft is proposed, it is for the adjustment of dummy shaft and fixing, the roller fitting seat 1 that this spherical roller frame special for dummy shaft comprises base 3 and installs on the base 3, roller fitting seat 1 is provided with a plurality of roller 8 for supporting dummy shaft, this roller 8 is installed on roller fitting seat 1 by rotating mechanism, described roller fitting seat 1 is provided with the axial thrust brake for stopping dummy shaft axial float.
In the present embodiment, roller fitting seat 1 adopts solid forging, and on numerical control machining center, fine finishing forms, and ensures each size conforms drawing requirement.Roller 8 is provided with two, is arranged on roller fitting seat 1 with the axial symmetry of roller fitting seat 1 being placed dummy shaft, and the roller 8 supporting dummy shaft adopts cast tin bronze to process, and ensures that dummy shaft axle journal can not wear and tear.Above-mentioned rotating mechanism is fixed on the stationary axle 7 on roller fitting seat 1 and is fixed on the bearing 11 at stationary axle 7 two ends, between this stationary axle 7 and roller fitting seat 1, circlip for shaft 9 is installed, described roller 8 is arranged on stationary axle 7 by bearing 11, thus reaches the rotation object of roller 8.Be provided with between bearing 11 and roller fitting seat 1 and adjust pad 10, circlip for hole 12 is provided with between the outer ledge and roller 8 of bearing 11, what the bearing 11 selected by the present embodiment spherical roller frame adopted is roller bearing, it is import SKF product, model: 22212, static load: 155KN, dynamic load: 122KN, meet the bearing capacity of 2 tons of dummy shafts completely, and axial runout amount when ensureing that dummy shaft operates is less than 0.02mm.
2 cast tin bronze rollers are arranged on 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 relative to the degree of symmetry at roller 8 center.The sphere-contact place of roller 8 is scraped by Manual shovel, and area of contact reaches more than 95%, and the surperficial extra coarse degree of sphere reaches 0.08um.By above measure, guarantee to meet when laying dummy shaft, the circular runout of dummy shaft benchmark is less than 0.02mm, is equipped with corresponding axial thrust brake simultaneously, prevents dummy shaft from using axial float when rotating.
It is worth mentioning that, see Fig. 3 to Fig. 7, what the axial thrust brake of the present embodiment adopted is baffle plate 5, and described baffle plate 5 is arranged on a side of roller fitting seat 1 and base 3, for keeping out the axial float of dummy shaft.The top of the present embodiment base 3 is processed with the circular arc mounting groove 32 for installing roller fitting seat 1, and is positioned at circular arc mounting groove 32 two ends on the base 3 and is provided with lifting bolt 4, 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 the first pin shaft hole 14, the circular arc mounting groove of described base 3 is provided with second pin shaft hole 33 corresponding with the first pin shaft hole 14, and described roller fitting seat 1 makes it fixing on the base 3 by installing bearing pin 2 in the first pin shaft hole 14 and the second pin-and-hole 33.
In addition, the bottom of base 3 is provided with the level(l)ing mechanism installing displacement for adjusting base 3, this level(l)ing mechanism comprises the installation leg 30 being arranged on base bottom, the mounting hole 31 installed on leg 30 and the adjusting bolt 6 be arranged in mounting hole 31 are set, the mounting hole 31 of the present embodiment can be processed as waist shaped hole, be convenient to adjusting bolt 6, at waist shaped hole adjusting base 3, displacement be installed, the present embodiment is installed leg 30 and is provided with two, four corners of base for supporting 3 respectively, each installation leg 30 two ends process mounting hole 31, adjusting bolt 6 is fixed on the fixed bolster case that is positioned at below base 3 by mounting hole 31, the Level tune of spherical roller frame of the present invention realizes manual tune by the adjusting bolt of 4 on fixed bolster case 6, regulation range reaches ± 30mm.
In the present embodiment, turbine low pressure cylinder General assembling table position transformation important technological parameters is as follows:
1, the basic center height of dummy shaft: 4700mm
2, spherical roller frame special for dummy shaft centre distance: 8000mm
4, spherical roller frame special for dummy shaft
Specified carrying: >=5T(two groups)
Roller diameter: ф 150mm
Roller widths: 180mm
Roller material: cast tin bronze
Horizontal adjusting 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 spherical roller frame that the present invention uses by arranging dummy shaft, guarantee to meet when laying dummy shaft, the circular runout of dummy shaft benchmark is less than 0.02mm, be equipped with corresponding axial thrust brake simultaneously, axial float when preventing dummy shaft use from rotating, improve installation validity, shorten processing, the supply of material and installation period, avoid the waste of installation period.
More than show and describe 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; what describe in above-described embodiment and 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.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. spherical roller frame special for dummy shaft, it is characterized in that, it comprises base and is arranged on the roller fitting seat on base, described roller fitting seat is provided with a plurality of roller for supporting dummy shaft, described roller is arranged on roller fitting seat by rotating mechanism, described roller fitting seat is provided with the axial thrust brake for stopping dummy shaft axial float, the bottom of described base is provided with the level(l)ing mechanism installing displacement for adjusting base, the top of described base is provided with the circular arc mounting groove for installing roller fitting seat, described roller fitting seat is provided with the circular arc projecting surface suitable with circular arc mounting groove, described roller is provided with two, and be arranged on roller fitting seat about the axisymmetrical of dummy shaft, described rotating mechanism comprises the stationary axle be fixed on roller fitting seat and the bearing being fixed on stationary axle two ends, described roller is arranged on stationary axle by bearing, what described axial thrust brake adopted is baffle plate, described baffle plate is arranged on a side of roller fitting seat and base, the circular arc projecting surface of described roller fitting seat is provided with the first pin shaft hole, the circular arc mounting groove of described base is provided with second pin shaft hole corresponding with the first pin shaft hole, described roller fitting seat makes it be fixed on base by installing bearing pin in the first pin shaft hole and the second pin-and-hole, described level(l)ing mechanism comprises the installation leg being arranged on base bottom, the adjusting bolt arranging the mounting hole on installation leg and be arranged in mounting hole.
2. spherical roller frame special for dummy shaft according to claim 1, is characterized in that, what described roller adopted is that cast tin bronze processes.
3. spherical roller frame special for dummy shaft according to claim 1, is characterized in that, described base is also provided with lifting bolt.
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 |
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| CN103292121A CN103292121A (en) | 2013-09-11 |
| CN103292121B true CN103292121B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310211763.6A Active CN103292121B (en) | 2013-05-31 | 2013-05-31 | Spherical roller frame special for dummy shaft |
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| CN (1) | CN103292121B (en) |
Families Citing this family (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 |
| CN112317565B (en) * | 2020-11-03 | 2022-10-11 | 杭州集智机电股份有限公司 | Rotatable self-adaptive support device for straightening machine |
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|---|---|---|---|---|
| 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 |
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| CN103292121A (en) | 2013-09-11 |
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