CN114094775A - A self-adjusting ejector device for power plant generator set installation - Google Patents
A self-adjusting ejector device for power plant generator set installation Download PDFInfo
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- CN114094775A CN114094775A CN202111037385.5A CN202111037385A CN114094775A CN 114094775 A CN114094775 A CN 114094775A CN 202111037385 A CN202111037385 A CN 202111037385A CN 114094775 A CN114094775 A CN 114094775A
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- Prior art keywords
- generator
- rod
- adjusting
- adjusting ejector
- shaft
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
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- 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
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/14—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/26—Means for adjusting casings relative to their supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
- H02K7/1807—Rotary generators
- H02K7/1823—Rotary generators structurally associated with turbines or similar engines
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
本发明提供了一种用于电厂发电机组安装的自动调节顶杆装置，其用于在高度方向和水平方向内快速调整同轴度，确保汽轮机转轴和发电机转轴的轴心快速同轴对中布置，在机组安装运行中发生的位移可实时调整对中。其包括：汽轮机轴、发电机轴、发电机本体、发电机底座；发电机本体的输出端设置有发电机轴，发电机轴通过联轴器连接所述汽轮机轴；所述发电机本体支承于所述发电机底座的上表面，所述发电机底座上表面的长度方向两侧分别设置有若干对调节顶杆组件，每对所述调节顶杆组件的公杆头相向布置、且朝向发电机本体的对应侧布置，所述发电机本体的对应侧分别设置有母杆头，所述调节顶杆组件的公杆头对应插装于所述母杆头的内凹定位腔内。
The present invention provides an automatic adjusting ejector rod device used for the installation of a power plant generator set, which is used to quickly adjust the coaxiality in the height direction and the horizontal direction, so as to ensure the rapid coaxial centering of the shaft centers of the steam turbine rotating shaft and the generator rotating shaft. The displacement that occurs during the installation and operation of the unit can be adjusted in real time. It includes: a steam turbine shaft, a generator shaft, a generator body, and a generator base; the output end of the generator body is provided with a generator shaft, and the generator shaft is connected to the steam turbine shaft through a coupling; the generator body is supported on the The upper surface of the generator base, the two sides in the length direction of the upper surface of the generator base are respectively provided with a number of pairs of adjustment ejector rod assemblies, and the male rod heads of each pair of the adjustment ejector rod assemblies are arranged opposite to each other and face the generator. The corresponding sides of the main body are arranged, the corresponding sides of the generator body are respectively provided with female rod heads, and the male rod heads of the adjusting jack assembly are correspondingly inserted into the concave positioning cavity of the female rod head.
Description
Technical Field
The invention relates to the technical field of coaxial centering, in particular to an automatic adjusting ejector rod device for mounting a power plant generator set.
Background
The steam turbine generator unit is key equipment of a power plant, and during installation of the equipment, a coupler of the steam turbine generator unit is aligned, so that a steam turbine and a generator are ensured to be positioned at the same axial position, and the steam turbine generator unit is also an important link. When the shaft axes of the steam turbine rotating shaft and the generator rotating shaft have over-standard coaxiality deviation, abnormal vibration can be caused; how the quality of concentricity alignment is, the working performance and the service life of the steam turbine generator unit are directly influenced. The existing adjusting method is to find the center of the generator rotor by taking the center of the turbine rotor as a reference, so that the center of the generator shaft and the center of the turbine shaft are connected into a straight line. The specific method is that a special tool and a dial indicator are arranged at the axial position and the radial position for measurement, then the bolt of the generator is manually adjusted for adjustment, and the coaxiality of the steam turbine and the generator can meet the requirements of drawings and specifications through multiple adjustments.
The disadvantages of this approach: 1, the implementation method completely depends on manpower, different people operate the method to produce errors, and the precision is not enough;
2, the adjustment can only be carried out when the unit is installed, and after the installation is finished, the adjustment cannot be carried out when the unit is shifted in operation.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic adjusting ejector rod device for installation of a power plant generator set, which is used for quickly adjusting the coaxiality in the height direction and the horizontal direction, ensuring that the axes of a steam turbine rotating shaft and a generator rotating shaft are quickly and coaxially arranged in a centering way, and adjusting the centering in real time through displacement generated in the installation and operation of the generator set.
The utility model provides an automatically regulated ejector pin device for power plant's generating set installation which characterized in that, it includes:
a turbine shaft;
a generator shaft;
a generator body;
a generator base;
the output end of the generator body is provided with a generator shaft, and the generator shaft is connected with the turbine shaft through a coupler;
the generator body is supported on the upper surface of the generator base, a plurality of pairs of adjusting ejector rod assemblies are respectively arranged on two sides of the upper surface of the generator base in the length direction, male rod heads of each pair of adjusting ejector rod assemblies are oppositely arranged and face to corresponding sides of the generator body, female rod heads are respectively arranged on corresponding sides of the generator body, and the male rod heads of the adjusting ejector rod assemblies are correspondingly inserted into concave positioning cavities of the female rod heads;
the lower surface of the generator base is provided with a plurality of downward-convex female rod heads, a plurality of upward-convex adjusting ejector rod assemblies are arranged in a concrete surface supported by the generator base, the adjusting ejector rod assemblies and the female rod heads are correspondingly arranged one by one, and male rod heads of the adjusting ejector rod assemblies are correspondingly inserted into concave positioning cavities of the female rod heads;
the rod end of the adjusting ejector rod assembly is connected with the fixed support through threads, the inner side of the rod end of the adjusting ejector rod is connected with the output end of a motor, and the signal input end of the motor is connected with a controller;
each adjusting ejector rod assembly is also provided with a force measuring device, the force measuring devices are attached to the corresponding surfaces of the objects to be adjusted, and the force measuring devices are externally connected with a controller.
It is further characterized in that:
at least two rows of adjusting mandril assemblies are arranged below the bottoms of the front part and the rear part of the generator base, so that enough supporting force for the generator body and the generator base is ensured;
the adjusting ejector rod assembly specifically comprises a fixed support, an adjusting rod, a motor support and a motor, the motor support is arranged in the fixed support, the motor is fixedly arranged on the motor support, the output end of the motor is connected with a driving gear, the fixed support is provided with a thread guide hole towards an end plate of the female rod head, threads are integrated on the adjusting rod, the outer end of the adjusting rod is a male rod head, the rod part at the inner end of the adjusting rod penetrates through the thread guide hole through threaded connection, a driven gear is fixedly arranged at the rod part at the inner end of the adjusting rod, the thickness of the driven gear is larger than that of the driving gear, the driving gear is meshed with the driven gear, and the controller drives the motor to rotate so as to adjust the male rod head to drive the female rod head to move;
the male club head is of a spherical structure, and the concave positioning cavity of the female club head is a concave spherical cavity, so that a larger contact surface is ensured, and torsion cannot be generated in the relative movement process;
a fixed support is integrated with a fixed bolt which is used for fixedly connecting a concrete ground or a generator base;
the inner cavity of the adjusting ejector rod assembly is further provided with a distance measuring element, the distance measuring element is arranged towards the inner wall of the end plate, if the adjusting ejector rod assembly cannot bear the weight of the generator or is displaced in the horizontal direction to deform, the distance measuring element measures the distance change between the adjusting ejector rod assembly and the inner wall of the end plate, and the deformation of the adjusting ejector rod assembly can be observed in real time by measuring the distance value.
After adopting above-mentioned technical scheme, earlier measure the pressure of generator base or generator through the measuring force device, pressure numerical value passes through signal of telecommunication and transmits to the controller, can obtain the fluctuation curve, through the controller operation, reach the direction of this generator skew, the motor operation is controlled again, make the public club head drive the female club head straight line direction and advance, and then accomplish the displacement adjustment of motor base or generator, at this in-process, whole barring does not stop, can detect the numerical value fluctuation reduction of measuring force device simultaneously, when fluctuation reduces to reasonable within range, adjust and accomplish.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
the names corresponding to the sequence numbers in the figure are as follows:
the generator comprises a turbine shaft 10, a generator shaft 20, a generator body 30, a generator base 40, a coupling 50, an adjusting ejector rod assembly 60, a male rod head 61, a fixed support 62, an end plate 621, a distance measuring element 622, a motor 63, a force measuring device 64, a force measuring head 641, an adjusting rod 65, a motor support 66, a driving gear 67, a driven gear 68, a fixed connection bolt 69, a female rod head 70, a concave positioning cavity 71 and a controller 80.
Detailed Description
An automatic adjusting ejector rod device for installing a power plant generator unit is shown in figures 1-3 and comprises a turbine shaft 10, a generator shaft 20, a generator body 30 and a generator base 40;
the output end of the generator body 30 is provided with a generator shaft 20, and the generator shaft 20 is connected with the turbine shaft 10 through a coupling 50;
the generator body 30 is supported on the upper surface of the generator base 40, a plurality of pairs of adjusting ejector rod assemblies 60 are respectively arranged on both sides of the upper surface of the generator base 40 in the length direction, the male rod heads 61 of each pair of adjusting ejector rod assemblies 60 are oppositely arranged and face the corresponding side of the generator body 30, the corresponding sides of the generator body 30 are respectively provided with a female rod head 70, the male rod heads 61 of the adjusting ejector rod assemblies 60 are correspondingly inserted into the concave positioning cavities 71 of the female rod heads 70,
the lower surface of the generator base 40 is provided with a plurality of downward convex female rod heads 70, a plurality of upward convex adjusting ejector rod assemblies 60 are arranged in a concrete surface supported by the generator base 40, the adjusting ejector rod assemblies 60 and the female rod heads 70 are arranged in a one-to-one correspondence manner, and male rod heads 61 of the adjusting ejector rod assemblies 60 are correspondingly inserted into concave positioning cavities 71 of the female rod heads 70;
the rod end of the adjusting ejector rod assembly 60 is connected with the fixed support 62 through threads, the inner side of the rod end of the adjusting ejector rod assembly is connected with the output end of a motor 63, and the signal input end of the motor 63 is connected with a controller 80;
each adjusting mandril assembly 60 is also provided with a force measuring device 64, a force measuring head 641 of the force measuring device 64 is attached to the corresponding surface of the object to be adjusted, and the force measuring device 64 is externally connected with a controller 80.
At least two rows of adjusting ram assemblies 60 are arranged below the bottom of the front and rear positions of the generator base 40, which ensure sufficient support force for the generator body, the generator base;
the adjusting ejector rod assembly 60 specifically comprises a fixed support 62, an adjusting rod 65, a motor support 66 and a motor 63, the motor support 66 is arranged in the fixed support 62, the motor 63 is fixedly arranged on the motor support 66, the output end of the motor 63 is connected with a driving gear 67, a thread guide hole is formed in the end plate 621, facing the female rod head 70, of the fixed support 62, threads are integrated on the adjusting rod 65, the outer end of the adjusting rod 65 is a male rod head 61, the rod part at the inner end of the adjusting rod 65 is connected with a through thread guide hole in a threaded manner, a driven gear 68 is fixedly arranged at the rod part at the inner end of the adjusting rod 65, the thickness of the driven gear 68 is larger than that of the driving gear 67, the driving gear 67 is meshed with the driven gear 68, and the controller 80 drives the motor 63 to rotate so as to adjust the male rod head 61 to drive the female rod head 70 to move;
the male club head 61 is a spherical structure, and the concave positioning cavity 71 of the female club head 70 is a concave spherical cavity, so that a larger contact surface is ensured, and torsion cannot be generated in the relative movement process;
a fixed bolt 69 is integrated on the fixed support 62, and the fixed bolt 69 is used for fixedly connecting a concrete ground or the generator base 40;
the inner cavity of the fixed support 62 is further provided with a distance measuring element 622, the distance measuring element 622 is arranged towards the inner wall of the end plate 621, if the adjusting ejector rod assembly 60 cannot bear the weight of the generator body or the generator body is displaced in the horizontal direction to deform, the distance measuring element 622 measures the change of the distance between the adjusting ejector rod assembly and the inner wall of the end plate 621, and the deformation of the adjusting ejector rod assembly can be observed in real time by measuring the distance value.
In the specific implementation: the front part and the rear part of the length direction of the upper surface of the generator base 40 are respectively provided with a pair of adjusting ejector rod assemblies 60, two pairs of convex adjusting ejector rod assemblies 60 are arranged in a concrete surface supported by the generator base 40, the whole structure is provided with 8 adjusting ejector rod assemblies 60 in total, the bottom of the generator base 40 is provided with four convex female rod heads 70, and the corresponding side parts of the generator body 30 are fixedly provided with four convex female rod heads 70.
The adjusting ejector rod assemblies 60 fixedly mounted on the concrete are used for adjusting the concentricity of the generator shaft 20 in the height direction, and the adjusting ejector rod assemblies 60 fixedly mounted on the generator base 40 are paired to synchronously adjust the concentricity of the generator shaft 20 in the horizontal direction in the same direction.
Its theory of operation is as follows, measure the pressure of generator base or generator to the lateral part through the measuring force device earlier, pressure numerical value passes through signal of telecommunication and transmits to the controller, can obtain the fluctuation curve, through the controller operation, reach the direction of this generator skew, the motor operation of controlling again for the public club head drives the female club head straight line direction and advances, and then accomplish the displacement adjustment of motor base or generator, at this in-process, whole barring does not stop, can detect measuring force device's numerical value fluctuation simultaneously and reduce, when fluctuation reduces to reasonable within range, adjust and accomplish.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides an automatically regulated ejector pin device for power plant's generating set installation which characterized in that, it includes:
a turbine shaft;
a generator shaft;
a generator body;
a generator base;
the output end of the generator body is provided with a generator shaft, and the generator shaft is connected with the turbine shaft through a coupler;
the generator body is supported on the upper surface of the generator base, a plurality of pairs of adjusting ejector rod assemblies are respectively arranged on two sides of the upper surface of the generator base in the length direction, male rod heads of each pair of adjusting ejector rod assemblies are oppositely arranged and face to corresponding sides of the generator body, female rod heads are respectively arranged on corresponding sides of the generator body, and the male rod heads of the adjusting ejector rod assemblies are correspondingly inserted into concave positioning cavities of the female rod heads;
the lower surface of the generator base is provided with a plurality of downward-convex female rod heads, a plurality of upward-convex adjusting ejector rod assemblies are arranged in a concrete surface supported by the generator base, the adjusting ejector rod assemblies and the female rod heads are correspondingly arranged one by one, and male rod heads of the adjusting ejector rod assemblies are correspondingly inserted into concave positioning cavities of the female rod heads;
the rod end of the adjusting ejector rod assembly is connected with the fixed support through threads, the inner side of the rod end of the adjusting ejector rod is connected with the output end of a motor, and the signal input end of the motor is connected with a controller;
each adjusting ejector rod assembly is also provided with a force measuring device, the force measuring devices are attached to the corresponding surfaces of the objects to be adjusted, and the force measuring devices are externally connected with a controller.
2. The automatic adjusting ejector device for installation of the power plant generating set according to claim 1, characterized in that: at least two rows of adjusting mandril assemblies are arranged below the bottoms of the front part and the rear part of the generator base.
3. The automatic adjusting ejector device for installation of the power plant generating set according to claim 2, characterized in that: the adjusting ejector rod assembly specifically comprises a fixed support, an adjusting rod, a motor support and a motor, the motor support is arranged in the fixed support, the motor is fixedly arranged on the motor support, the output end of the motor is connected with a driving gear, the fixed support is provided with a thread guide hole towards an end plate of a female rod head, threads are integrated on the adjusting rod, the outer end of the adjusting rod is a male rod head, the inner end rod part of the adjusting rod penetrates through the thread guide hole through threaded connection, a driven gear is fixedly arranged at the inner end rod part of the adjusting rod, the thickness of the driven gear is larger than that of the driving gear, and the driving gear is meshed with the driven gear.
4. The automatic adjusting ejector device for installation of the power plant generating set according to claim 1, characterized in that: the male club head is of a spherical structure, and the concave positioning cavity of the female club head is a concave spherical cavity.
5. The automatic adjusting ejector device for installation of the power plant generating set of claim 3, wherein: and a fixed bolt is integrated on the fixed support and used for fixedly connecting a concrete ground or a generator base.
6. The automatic adjusting ejector device for installation of the power plant generating set of claim 3, wherein: the inner cavity of the adjusting ejector rod assembly is further provided with a distance measuring element, and the distance measuring element is arranged towards the inner wall of the end plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111037385.5A CN114094775B (en) | 2021-09-06 | An automatic adjusting push rod device for installing a power plant generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111037385.5A CN114094775B (en) | 2021-09-06 | An automatic adjusting push rod device for installing a power plant generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114094775A true CN114094775A (en) | 2022-02-25 |
| CN114094775B CN114094775B (en) | 2025-04-18 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06159012A (en) * | 1992-11-20 | 1994-06-07 | Mitsubishi Heavy Ind Ltd | Uniaxial combined plant and its operating method |
| CN101635488A (en) * | 2009-08-26 | 2010-01-27 | 中冶集团华冶资源开发有限责任公司 | Method for aligning concentricity of exciter rotor and generator rotor of turbogenerator |
| CN105958748A (en) * | 2016-06-30 | 2016-09-21 | 江苏朗信电气有限公司 | Motor rotor axial clearance adjusting machine |
| CN110576313A (en) * | 2019-10-17 | 2019-12-17 | 中国南方电网有限责任公司超高压输电公司大理局 | Auxiliary device for left-right adjustment of coaxiality of motor and pump and adjusting method |
| KR102068641B1 (en) * | 2019-05-08 | 2020-01-22 | 한국기계연구원 | Shaft alignment monitoring and controling device and method for wind generator |
| CN216625528U (en) * | 2021-09-06 | 2022-05-27 | 苏州西热节能环保技术有限公司 | Automatic adjusting ejector rod device for installation of power plant generator set |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06159012A (en) * | 1992-11-20 | 1994-06-07 | Mitsubishi Heavy Ind Ltd | Uniaxial combined plant and its operating method |
| CN101635488A (en) * | 2009-08-26 | 2010-01-27 | 中冶集团华冶资源开发有限责任公司 | Method for aligning concentricity of exciter rotor and generator rotor of turbogenerator |
| CN105958748A (en) * | 2016-06-30 | 2016-09-21 | 江苏朗信电气有限公司 | Motor rotor axial clearance adjusting machine |
| KR102068641B1 (en) * | 2019-05-08 | 2020-01-22 | 한국기계연구원 | Shaft alignment monitoring and controling device and method for wind generator |
| CN110576313A (en) * | 2019-10-17 | 2019-12-17 | 中国南方电网有限责任公司超高压输电公司大理局 | Auxiliary device for left-right adjustment of coaxiality of motor and pump and adjusting method |
| CN216625528U (en) * | 2021-09-06 | 2022-05-27 | 苏州西热节能环保技术有限公司 | Automatic adjusting ejector rod device for installation of power plant generator set |
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