CN108825315B - Bearing box supporting structure of marine steam turbine - Google Patents
Bearing box supporting structure of marine steam turbine Download PDFInfo
- Publication number
- CN108825315B CN108825315B CN201811109129.0A CN201811109129A CN108825315B CN 108825315 B CN108825315 B CN 108825315B CN 201811109129 A CN201811109129 A CN 201811109129A CN 108825315 B CN108825315 B CN 108825315B
- Authority
- CN
- China
- Prior art keywords
- connecting piece
- bearing box
- cylinder
- piece
- cylinder connecting
- 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.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 244000028952 catclaw acacia Species 0.000 description 1
- 235000004608 catclaw acacia Nutrition 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
Abstract
A bearing box supporting structure of a marine steam turbine relates to a supporting mode of the bearing box of the marine steam turbine. The invention provides a bearing box supporting structure which can solve the problems that the existing bearing box bracket of a marine steam turbine is huge in size and weight and the whole structure of the steam turbine is not compact. The invention comprises a cylinder connecting piece, a bearing box connecting piece and a fixing piece; a cylinder connecting piece with a plurality of first pin holes is fixed at the front end of the cylinder and is connected with the cylinder into a whole, and a rotor in the cylinder penetrates through the cylinder connecting piece and stretches into the bearing box; the bearing box connecting piece with a plurality of second pin holes is fixedly arranged on the box body of the bearing box in a surrounding manner and is connected with the bearing box into a whole; the bearing box connecting piece is placed on the cylinder connecting piece; the first pin holes on the cylinder connecting piece and the second pin holes on the bearing box connecting piece are respectively in one-to-one correspondence, and the fixing piece fixedly connects the cylinder connecting piece and the bearing box connecting piece through the first pin holes and the second pin holes; the bearing box support device is used for supporting the bearing box of the marine steam turbine.
Description
Technical Field
The invention relates to the field of marine steam turbines, in particular to a supporting mode of a bearing box of a marine steam turbine.
Background
In the development process of the marine steam turbine technology, the front bearing box of the steam turbine is connected with the cylinder and is supported by adopting a structure that the bearing box supports the whole steam turbine body all the time, and in order to support the weight of the whole steam turbine body, ensure the stable operation of the steam turbine and have enough rigidity, the lower bracket of the front bearing box body is formed by adopting complex steel plate welding; the size of the bracket is huge, the number of the connecting positioning bolts is large, and the center height and the horizontal position of the steam turbine also need to be adjusted by adjusting the gasket. In order to better meet the requirements of the marine steam turbine on compact structure, body weight reduction and convenient installation, the connecting structure of the front bearing box and the cylinder of the steam turbine is simplified, and the steam turbine is a research subject to be improved and optimized.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the prior marine steam turbine has the problems of huge size, heavy weight and non-compact overall structure of the front bearing box bracket, and further provides a bearing box supporting structure of the marine steam turbine.
The invention adopts the technical scheme for solving the technical problems that: the marine turbine bearing box supporting structure comprises a cylinder connecting piece, a bearing box connecting piece and a fixing piece; the cylinder connecting piece is fixed at the front end of the cylinder and is connected with the cylinder into a whole, and a rotor in the cylinder penetrates through the cylinder connecting piece and stretches into the bearing box; the bearing box connecting piece is fixed on the box body of the bearing box in a surrounding way and is connected with the bearing box into a whole;
the cylinder and front bearing box connecting piece is a semicircular flange, one side of the cylinder connecting piece is provided with a semicircular groove, and a plurality of first pin holes are circumferentially arranged on the semicircular groove in parallel;
the bearing box connecting piece is a semicircular flange, a second pin hole is formed in the bearing box connecting piece in parallel in the circumferential direction, the outer diameter of the bearing box connecting piece is identical to the inner diameter of the semicircular groove on the cylinder connecting piece, and the bearing box connecting piece is placed on the inner surface of the semicircular groove and is completely attached to the inner surface of the semicircular groove; the first pin holes on the cylinder connecting piece and the second pin holes on the bearing box connecting piece are in one-to-one correspondence respectively, and the fixing piece is used for fixedly connecting the cylinder connecting piece and the bearing box connecting piece through the first pin holes and the second pin holes.
The beneficial effects of the invention are as follows:
1. the bearing box is directly supported on the cylinder, so that a bracket below the original bearing box is omitted, the whole weight of the steam turbine is reduced, the structure of the steam turbine is compact, and the bearing box and the cylinder are convenient to install, easy to adjust and easy to process;
2. the bearing box is fixed on the semicircular flange of the cylinder by adopting the semicircular flange, so that the axial positioning and circumferential positioning between the front bearing box and the cylinder are met, and the requirements of relative displacement between the thrust bearing and the rotor thrust disc and centering of the rotor cylinder are met;
drawings
FIG. 1 is a front view of a marine turbine bearing housing support structure;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a front view of the cylinder connection 1;
fig. 5 is a top view of the cylinder connection 1;
fig. 6 is a front view of the bearing housing connector 2;
FIG. 7 is a side view of FIG. 6;
FIG. 8 is a schematic structural view of a bearing housing support structure for a marine steam turbine.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments with reference to the accompanying drawings:
the first embodiment is as follows: 1-8, the bearing box supporting structure of the marine steam turbine in the embodiment comprises a cylinder connecting piece 1, a bearing box connecting piece 2 and a fixing piece 5; the cylinder connecting piece 1 is fixed at the front end of the cylinder and is connected with the cylinder into a whole (the cylinder connecting piece can be integrated with the cylinder, namely, the cylinder connecting piece is directly manufactured in the process of manufacturing the cylinder), and a rotor in the cylinder passes through the cylinder connecting piece and stretches into the bearing box; the bearing box connecting piece 2 is fixed on the box body of the bearing box 6 in a surrounding way and is connected with the bearing box 6 into a whole;
the cylinder connecting piece 1 is a semicircular flange, one side of the cylinder connecting piece 1 is provided with a semicircular groove 1-3, and a plurality of first pin holes 1-1 are circumferentially arranged on the semicircular groove 1-3 in parallel;
the bearing box connecting piece 2 is a semicircular flange, a second pin hole 2-1 is arranged on the bearing box connecting piece 2 in parallel in the circumferential direction, the outer diameter of the bearing box connecting piece 2 is identical to the inner diameter of the semicircular groove 1-3 on the cylinder connecting piece 1, and the bearing box connecting piece 2 is placed on the inner surface of the semicircular groove 1-3 and is completely attached to the inner surface of the semicircular groove 1-3; the first pin holes 1-1 on the cylinder connecting piece 1 are respectively in one-to-one correspondence with the second pin holes 2-1 on the bearing box connecting piece 2, and the fixing piece 5 is used for fixedly connecting the cylinder connecting piece 1 with the bearing box connecting piece 2 through the first pin holes 1-1 and the second pin holes 2-1.
The rear end of the bearing box is fixed on the cylinder through the bearing box connecting piece 2, the front end is not provided with a supporting frame, and when the cylinder generates thermal expansion, the front bearing box and the cylinder move forwards simultaneously, so that the structure of a traditional cylinder cat claw and a cross pin is omitted between the front bearing box and the cylinder, and the connection between the bearing box and the cylinder is simple and easy to install. The cylinders support the weight of the entire turbine by the flexplate while compensating for thermal expansion of the turbine by deformation of the flexplate.
The fixed connection of the fixing piece 5 and the semicircular groove 1-3 arranged on the cylinder connecting piece 1 meet the axial positioning and circumferential positioning requirements of the front bearing box and the cylinder, the relative displacement of the thrust bearing and the rotor thrust disc and the centering requirement of the rotor cylinder.
The second embodiment is as follows: the embodiment will be described with reference to fig. 1, 6 to 8, which further includes a plurality of screws 3 and a plurality of pressing plates 4, one side of the cylinder connecting member 1 is further provided with a plurality of bolt grooves 1-2, both ends of the pressing plates 4 are respectively placed on the cylinder connecting member 1 and the bearing housing connecting member 2, the end of the pressing plate 4 placed on the cylinder connecting member 1 is provided with a bolt hole, the bolt hole is aligned with the bolt groove 1-2, and the screws 3 penetrate through the bolt holes on the pressing plates 4 to extend into the bolt grooves 1-2 and are screwed and fixed.
Through setting up screw 3 and preforming 4, can make the side of cylinder connecting piece 1 and bearing box connecting piece 2 align, be favorable to first pinhole 1-1 on the cylinder connecting piece 1 and the second pinhole 2-1 on the bearing box connecting piece 2 one-to-one, make things convenient for mounting 5 to carry out fixed connection with cylinder connecting piece 1 and bearing box connecting piece 2 through first pinhole 1-1 and second pinhole 2-1. Other components and connection modes are the same as in the first embodiment.
And a third specific embodiment: referring to fig. 1, 3, 4, 5, and 8, in this embodiment, bolt grooves 1-2 are further formed in end faces of two ends of the cylinder connecting piece 1, two ends of the pressing piece 4 are respectively placed on the cylinder connecting piece 1 and the bearing box connecting piece 2, bolt holes on the pressing piece 4 are aligned with the bolt grooves 1-2, and the bolts 3 penetrate through the bolt holes on the pressing piece 4 to extend into the bolt grooves 1-2 and are screwed tightly.
Other components and connection modes are the same as those of the first or second embodiment.
The specific embodiment IV is as follows: the fixing member 5 according to the present embodiment is a positioning pin. Other compositions and connection modes are the same as any one of the first to third embodiments.
Fifth embodiment: the number of the first pin holes 1-1 and the second pin holes 2-1 described in this embodiment is the same, and the number is 6 to 10. Other compositions and connection modes are the same as any one of the first to fourth embodiments.
Specific embodiment six: referring to fig. 5 and 7, the distance from the center point of the second pin hole 2-1 on the bearing housing connecting member 2 to the rear end of the bearing housing in the present embodiment is a, and the distance from the center point of the first pin hole 1-1 on the cylinder connecting member 1 to the front end of the cylinder is b, where a < or=b.
Other compositions and connection modes are the same as any one of the first to fifth embodiments.
The installation process of the invention comprises the following steps:
placing a bearing box connecting piece on a bearing box on a cylinder connecting piece on a cylinder, and installing a pressing piece through a screw to align the cylinder connecting piece with the side end of the bearing box connecting piece;
drilling the cylinder connecting piece and the bearing box connecting piece by using an electric drill to obtain a first pin hole and a second pin hole;
and thirdly, driving the positioning pin into the first pin hole and the second pin hole and caulking, wherein the positioning pin plays a role in fixing and positioning.
Claims (6)
1. The marine turbine bearing box supporting structure is characterized by comprising a cylinder connecting piece (1), a bearing box connecting piece (2) and a fixing piece (5); the cylinder connecting piece (1) is fixed at the front end of the cylinder and is connected with the cylinder into a whole; the bearing box connecting piece (2) is fixed on the box body of the bearing box (6) in a surrounding way and is connected with the bearing box (6) into a whole;
the cylinder connecting piece (1) is a semicircular flange, one side of the cylinder connecting piece (1) is provided with a semicircular groove (1-3), and a plurality of first pin holes (1-1) are circumferentially arranged on the semicircular groove (1-3) side by side;
the bearing box connecting piece (2) is a semicircular flange, a second pin hole (2-1) is formed in the bearing box connecting piece (2) in a circumferential direction side by side manner, the bearing box connecting piece (2) is placed on the inner surface of the semicircular groove (1-3), and the outer surface of the bearing box connecting piece (2) is completely attached to the inner surface of the semicircular groove (1-3); the first pin holes (1-1) on the cylinder connecting piece (1) and the second pin holes (2-1) on the bearing box connecting piece (2) are in one-to-one correspondence respectively, and the fixing piece (5) is used for fixedly connecting the cylinder connecting piece (1) with the bearing box connecting piece (2) through the first pin holes (1-1) and the second pin holes (2-1).
2. The marine turbine bearing housing support structure of claim 1, wherein: the novel air cylinder connecting piece is characterized by further comprising a plurality of screws (3) and a plurality of pressing pieces (4), wherein a plurality of bolt grooves (1-2) are further formed in one side of the air cylinder connecting piece (1), two ends of each pressing piece (4) are respectively arranged on the air cylinder connecting piece (1) and the bearing box connecting piece (2), the end, placed on the air cylinder connecting piece (1), of each pressing piece (4) is provided with a bolt hole, the bolt holes are aligned with the bolt grooves (1-2), and the screws (3) penetrate through the bolt holes in the pressing pieces (4) to extend into the bolt grooves (1-2) and are screwed and fixed.
3. The marine turbine bearing housing support structure of claim 2, wherein: the cylinder connecting piece (1) is characterized in that bolt grooves (1-2) are further formed in the end faces of the two ends of the cylinder connecting piece (1), the two ends of the pressing piece (4) are respectively placed on the cylinder connecting piece (1) and the bearing box connecting piece (2), bolt holes in the pressing piece (4) are aligned with the bolt grooves (1-2), and bolts (3) penetrate through the bolt holes in the pressing piece (4) to extend into the bolt grooves (1-2) and are screwed and fixed.
4. A marine turbine bearing housing support structure according to claim 1, 2 or 3, wherein: the fixing piece (5) is a locating pin.
5. The marine turbine bearing housing support structure of claim 4, wherein: the number of the first pin holes (1-1) is the same as that of the second pin holes (2-1), and the number of the first pin holes is 6-10.
6. The marine turbine bearing housing support structure of claim 5, wherein: the distance from the center point of the second pin hole (2-1) on the bearing box connecting piece (2) to the end part of the rear end of the bearing box is a, and the distance from the center point of the first pin hole (1-1) on the cylinder connecting piece (1) to the end part of the front end of the cylinder is b, wherein a is less than or equal to b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109129.0A CN108825315B (en) | 2018-09-21 | 2018-09-21 | Bearing box supporting structure of marine steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811109129.0A CN108825315B (en) | 2018-09-21 | 2018-09-21 | Bearing box supporting structure of marine steam turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825315A CN108825315A (en) | 2018-11-16 |
| CN108825315B true CN108825315B (en) | 2023-11-28 |
Family
ID=64149480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811109129.0A Active CN108825315B (en) | 2018-09-21 | 2018-09-21 | Bearing box supporting structure of marine steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825315B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114542206B (en) * | 2022-03-09 | 2024-02-20 | 中国船舶重工集团公司第七0三研究所 | Bearing box of compact structure unit |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB284024A (en) * | 1926-10-22 | 1928-01-23 | Whitehead Torpedo Company Ltd | Improvements in or relating to radial cylinder engines |
| JPS5786508A (en) * | 1980-11-19 | 1982-05-29 | Hitachi Ltd | Bearing box of steam turbine |
| JPH04129852U (en) * | 1991-05-20 | 1992-11-27 | ダイハツデイーゼル株式会社 | Gas turbine engine bearing structure |
| RU14608U1 (en) * | 2000-03-03 | 2000-08-10 | Акционерное общество открытого типа "Ленинградский Металлический завод" | END SEAL OF STEAM TURBINE CYLINDER |
| JP2010121498A (en) * | 2008-11-18 | 2010-06-03 | Mitsubishi Heavy Ind Ltd | Supporting structure of turbine casing |
| FR2943098A1 (en) * | 2009-03-13 | 2010-09-17 | Snecma | Device for end-to-end fixation of bearing support and inter-turbine casing hub in open rotor/unducted fan type turbine engine of airplane, has single self-lockable fixing element screwed or unscrewed in unlocking position of locking units |
| EP2230388A1 (en) * | 2009-03-17 | 2010-09-22 | Alstom Technology Ltd | Turbine support structure |
| CN103147805A (en) * | 2013-03-01 | 2013-06-12 | 哈尔滨汽轮机厂有限责任公司 | Steam exhausting cylinder of axially-exhausting steam turbine unit |
| CN103628936A (en) * | 2013-12-11 | 2014-03-12 | 中国化学工程第四建设有限公司 | Bulk installation method of small steam turbine driving synchronous generator |
| CN103939156A (en) * | 2014-05-14 | 2014-07-23 | 山东电力建设第三工程公司 | Method for installing nuclear power half-speed steam turbine |
| CN204627684U (en) * | 2015-04-10 | 2015-09-09 | 北京北重汽轮电机有限责任公司 | A kind of sliding pin system of steam turbine |
| CN105275511A (en) * | 2015-11-17 | 2016-01-27 | 上海电气电站设备有限公司 | Axial exhausting exhaust cylinder with bearing block supported in landing manner |
| CN105507964A (en) * | 2016-01-18 | 2016-04-20 | 哈尔滨汽轮机厂有限责任公司 | 700-DEG C ultra-supercritical three-cylinder 600MW turbine |
| CN105545384A (en) * | 2016-02-05 | 2016-05-04 | 中国船舶重工集团公司第七�三研究所 | Flexible support of high-back-pressure turbine |
| CN105604683A (en) * | 2014-09-24 | 2016-05-25 | 福特环球技术公司 | Split type turbocharger bearing assembly |
| CN208718733U (en) * | 2018-09-21 | 2019-04-09 | 中国船舶重工集团公司第七0三研究所 | A kind of marine turbing bearing housing support construction |
-
2018
- 2018-09-21 CN CN201811109129.0A patent/CN108825315B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB284024A (en) * | 1926-10-22 | 1928-01-23 | Whitehead Torpedo Company Ltd | Improvements in or relating to radial cylinder engines |
| JPS5786508A (en) * | 1980-11-19 | 1982-05-29 | Hitachi Ltd | Bearing box of steam turbine |
| JPH04129852U (en) * | 1991-05-20 | 1992-11-27 | ダイハツデイーゼル株式会社 | Gas turbine engine bearing structure |
| RU14608U1 (en) * | 2000-03-03 | 2000-08-10 | Акционерное общество открытого типа "Ленинградский Металлический завод" | END SEAL OF STEAM TURBINE CYLINDER |
| JP2010121498A (en) * | 2008-11-18 | 2010-06-03 | Mitsubishi Heavy Ind Ltd | Supporting structure of turbine casing |
| FR2943098A1 (en) * | 2009-03-13 | 2010-09-17 | Snecma | Device for end-to-end fixation of bearing support and inter-turbine casing hub in open rotor/unducted fan type turbine engine of airplane, has single self-lockable fixing element screwed or unscrewed in unlocking position of locking units |
| EP2230388A1 (en) * | 2009-03-17 | 2010-09-22 | Alstom Technology Ltd | Turbine support structure |
| CN103147805A (en) * | 2013-03-01 | 2013-06-12 | 哈尔滨汽轮机厂有限责任公司 | Steam exhausting cylinder of axially-exhausting steam turbine unit |
| CN103628936A (en) * | 2013-12-11 | 2014-03-12 | 中国化学工程第四建设有限公司 | Bulk installation method of small steam turbine driving synchronous generator |
| CN103939156A (en) * | 2014-05-14 | 2014-07-23 | 山东电力建设第三工程公司 | Method for installing nuclear power half-speed steam turbine |
| CN105604683A (en) * | 2014-09-24 | 2016-05-25 | 福特环球技术公司 | Split type turbocharger bearing assembly |
| CN204627684U (en) * | 2015-04-10 | 2015-09-09 | 北京北重汽轮电机有限责任公司 | A kind of sliding pin system of steam turbine |
| CN105275511A (en) * | 2015-11-17 | 2016-01-27 | 上海电气电站设备有限公司 | Axial exhausting exhaust cylinder with bearing block supported in landing manner |
| CN105507964A (en) * | 2016-01-18 | 2016-04-20 | 哈尔滨汽轮机厂有限责任公司 | 700-DEG C ultra-supercritical three-cylinder 600MW turbine |
| CN105545384A (en) * | 2016-02-05 | 2016-05-04 | 中国船舶重工集团公司第七�三研究所 | Flexible support of high-back-pressure turbine |
| CN208718733U (en) * | 2018-09-21 | 2019-04-09 | 中国船舶重工集团公司第七0三研究所 | A kind of marine turbing bearing housing support construction |
Non-Patent Citations (5)
| Title |
|---|
| 200MW空冷汽轮机组3号轴承箱的优化设计;余红兵,石淑莲,许高峰;汽轮机技术(第05期);第31-32页 * |
| 汽轮机滑销系统卡涩原因分析与处理;曾健斌;华电技术;33(1);第18-20、30、78页 * |
| 汽轮机轴承箱弹性支撑技术研究;李树权\n\n\n,王全胜;华北电力技术(第11期);第13-14页 * |
| 船用主汽轮机汽缸刚度特性研究;史冬岩;高旭文;张成;张亮;;船舶工程(第03期);第32-35页 * |
| 长春电力学校主编.热力设备安装与检修.电力工业出版社,1982,(第第一版版),第252-265页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108825315A (en) | 2018-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107240981B (en) | Detachable magnetic suspension energy storage flywheel rotor | |
| CN201461821U (en) | Wind driven generator, shock absorber used for wind driven generator and shock pad of shock absorber | |
| CN206002669U (en) | A kind of auxiliary mould of motor test | |
| CN108825315B (en) | Bearing box supporting structure of marine steam turbine | |
| CN208548815U (en) | Horizontal permanent-magnetic synchronizes submersible motor kludge production platform | |
| CN201391411Y (en) | Automatic aligning type guide bearing structure | |
| CN211951243U (en) | Coupling and power unit | |
| CN101814809B (en) | Air gap adjusting device for permanent-magnetic direct-drive wind generator | |
| CN106289695B (en) | Horizontal supporting system for vibration test of large-scale antenna system | |
| CN112098091A (en) | Rolling bearing dynamic testing machine based on active vibration | |
| CN110828876B (en) | Floating point support fixture for fuel cell stack | |
| CN215890109U (en) | Positioning push-pull device for steam turbine cylinder | |
| CN202520454U (en) | Test bed for oil injectors and oil injection pumps | |
| CN101794767B (en) | Mechanical press mounting structure of group large-power flat-plate power electronic device | |
| CN106872293B (en) | Universal adjustable hydraulic support frame device | |
| CN112460639A (en) | Elastic supporting structure for bidirectional expansion compensation of gas turbine | |
| CN201623960U (en) | Mechanical press mounting structure of grouped high-power panel-type power electronic device | |
| CN201240764Y (en) | Structure for connecting trolley and end beam of large-sized crane | |
| CN211343196U (en) | Combined bearing of bulb through-flow generator | |
| CN212338736U (en) | Pitching shafting for connecting hydraulic motor and pitching frame | |
| CN220552622U (en) | Adjustable axial dynamic load loading test device for nacelle propeller | |
| CN219513945U (en) | Motor stator and rotor assembling machine | |
| CN215942761U (en) | Power take-off mounting tool | |
| CN220884020U (en) | Engineering machinery motor suspension bracket structure | |
| CN211693774U (en) | Heating pipe device convenient to install for heat supply energy balance system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |