CN111780651A - Large vertical water pump centering device capable of presetting offset and method for presetting offset - Google Patents
Large vertical water pump centering device capable of presetting offset and method for presetting offset Download PDFInfo
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- CN111780651A CN111780651A CN202010754885.XA CN202010754885A CN111780651A CN 111780651 A CN111780651 A CN 111780651A CN 202010754885 A CN202010754885 A CN 202010754885A CN 111780651 A CN111780651 A CN 111780651A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/25—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
- G01B5/252—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes for measuring eccentricity, i.e. lateral shift between two parallel axes
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Abstract
The invention relates to a large vertical water pump centering device capable of presetting an offset and a method for presetting the offset, belonging to the technical field of water pump centering. The centering device comprises a disc type centering support and an adjustable steel wire heavy hammer device, wherein the disc type centering support comprises an installation disc and a centering platform, and the centering support and the centering platform are fixedly connected; the adjustable steel wire weight device comprises a circular ring-shaped installation base plate located at the bottom and a circular ring-shaped working platform located at the top, wherein the working platform is fixedly connected with the installation base plate through a plurality of support columns, the surface of the working platform is provided with a bottom slide rail through a pin fixedly connected with, the surface of the bottom slide rail is provided with a slide block in a slidable mode, the top surface of the slide block is provided with a slide block in a slidable mode, the top fixedly connected with steel wire weight retracting and releasing mechanism of the slide block is provided with a slide block driving mechanism, the rear end of the slide block in the sliding direction is connected with a slide block driving mechanism, and the rear end of the slide block in the sliding.
Description
Technical Field
The invention relates to a large vertical water pump centering device capable of presetting an offset and a method for presetting the offset, belonging to the technical field of water pump centering.
Background
At present, a large vertical water pump consists of a large vertical asynchronous motor and a vertical water pump, and the purpose of center adjustment is to enable a moving part and a static part of the water pump to be freely positioned on the same vertical central line under the running condition, and simultaneously, the superposition value of the shaking degrees of all rotating parts is smaller than the fit clearance of the moving part and the static part.
The general centering mode is a steel wire plumb line method, namely, a stator part of the water pump is concentrically fixed, and then centering work of a rotating part is carried out. However, this method produces a large deviation in the case of a water pump connected to a large-diameter rigid pipe and the pipe itself has insufficient compensation capability.
In view of the above-mentioned drawbacks, the present inventors have made active research and innovation to create a large vertical water pump centering device with a preset offset and a method for presetting the offset, so that the device has industrial utility value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a large vertical water pump centering device with a preset offset and a method for presetting the offset. The invention changes the prior centering tool from a split stool type structure to a disc support type of precision machining, and then changes the prior steel wire heavy hammer support to an adjustable steel wire heavy hammer device, so that the centering tool conforms to the prior disc support hole site, can be finely adjusted, and eliminates artificial deviation; because the device is machined, the plane precision is higher, the offset can be preset through a gasket adjusting mode and a translation mode, the adjustment is convenient, and the centering accuracy is improved.
The invention relates to a large vertical water pump centering device capable of presetting offset, which comprises a disc type centering bracket and an adjustable steel wire heavy hammer device,
the disc type centering support and the adjustable steel wire heavy hammer device are fixed through a pin joint;
the disc type centering support comprises a circular mounting disc positioned at the bottom and a circular centering platform positioned at the top, and the centering support and the centering platform are arranged in parallel and are fixedly connected through a plurality of supporting columns;
the adjustable steel wire weight device comprises a circular ring-shaped installation base plate located at the bottom and a circular ring-shaped working platform located at the top, wherein the working platform is fixedly connected with the installation base plate through a plurality of support columns, the surface of the working platform is provided with a bottom slide rail through a pin fixedly connected with, the surface of the bottom slide rail is provided with a slide block in a slidable mode, the top surface of the slide block is provided with a slide block in a slidable mode, the top fixedly connected with steel wire weight retracting and releasing mechanism of the slide block is provided with a slide block driving mechanism, the rear end of the slide block in the sliding direction is connected with a slide block driving mechanism, and the rear end of the slide block in the sliding.
Furthermore, the surface of the mounting disc is provided with a plurality of bolt holes for fixing the disc type centering support.
Furthermore, an inwards-concave circular installation limiting groove is formed in the center of the top face of the centering platform, a through circular heavy hammer hole is formed in the center of the installation limiting groove, and a plurality of fixing pin holes are uniformly formed in the periphery of the heavy hammer hole.
Furthermore, the bottom of the first sliding block is connected with the sliding rail groove on the top surface of the bottom sliding rail in a sliding mode, the top of the first sliding block is further provided with a sliding groove which is perpendicular to the sliding rail groove on the top surface of the bottom sliding rail in the direction, and the bottom of the second sliding block is connected with the sliding groove on the top of the first sliding block in a sliding mode.
Furthermore, the steel wire heavy hammer retracting and releasing mechanism comprises two retracting and releasing supports which are symmetrically and fixedly connected to the top surface of the first sliding block, a retracting and releasing roller is rotatably connected between the two retracting and releasing supports, and a locking mechanism is arranged on one side of the retracting and releasing roller.
Furthermore, a slider actuating mechanism includes a slider drive lead screw that sets up in a slider direction of motion to and a lead screw stopper of fixed connection on work platform surface, a slider drive lead screw pass a lead screw stopper and with the slider between through the rotatable connection of screw thread through the screw thread is used for driving the translation of a slider.
Furthermore, No. two slider actuating mechanism include that one sets up No. two slider drive lead screws in No. two slider motion directions to and No. two lead screw stoppers of fixed connection on a slider surface, No. two slider drive lead screws pass No. two lead screw stoppers and pass through rotatable the connection of screw through the screw thread between No. two sliders through the screw thread is rotatable for the translation of drive No. two sliders.
A method for presetting offset centering of a large vertical water pump specifically comprises the following steps:
(1) using a horizontal phase synthesizer to check and measure the level of the motor bottom plate;
(2) mounting a disc type centering support, fixing the disc type centering support on a motor base plate of the vertical pump, and positioning by using a positioning pin;
(3) an adjustable steel wire heavy hammer device is arranged at the upper part of the disc type centering support;
(4) putting down a steel wire heavy hammer to the pump shell of the vertical pump impeller;
(5) measuring the horizontal distance from the steel wire to a measuring point of a mechanical processing surface on the inner wall of the pump shell of the impeller of the vertical pump, and recording measurement data;
(6) summarizing measurement data and judging the translation direction of the vertical pump cylinder;
(7) after the water pump is started, the direction of the displacement of the barrel along the water outlet direction is consistent with the direction of the wind tunnel displacement formed by natural ventilation between water inlets, and the mode of presetting the offset is to preset translation towards the inlet direction of the water pump by taking an empirical value of 0.1-0.2 mm;
(8) the offset of the center during foundation settlement is calculated by the thickness of a stainless steel gasket additionally arranged between the disc type centering support and the motor base plate, the preset offset is calculated by measuring the level of the disc type centering support after the gasket is additionally arranged, and the direction and the value of the gasket adjustment during the actual installation of the motor support are calculated according to the thickness of the stainless steel gasket additionally arranged between the disc type centering support and the motor base plate on the premise that the level of the centering support is not more than 0.02mm, so that the preset offset is determined;
(9) and after the preset offset is determined and preset is finished, centering the large vertical water pump.
Further, in the step (5), the horizontal distance from the steel wire to the measuring point of the mechanical processing surface on the inner wall of the pump shell of the impeller of the vertical pump is measured, wherein the measuring point must be 8 points in the circumferential direction of the mechanical processing surface.
Further, the preset translation towards the water pump inlet in the step (7) is realized through a first sliding block and a second sliding block on the surface of the adjustable steel wire heavy hammer device.
By the scheme, the invention at least has the following advantages:
the invention changes the prior centering tool from a split stool type structure to a disc support type of precision machining, and then changes the prior steel wire heavy hammer support to an adjustable steel wire heavy hammer device, so that the centering tool conforms to the prior disc support hole site, can be finely adjusted, and eliminates artificial deviation; because the device is machined, the plane precision is higher, the offset can be preset through a gasket adjusting mode and a translation mode, the adjustment is convenient, and the centering accuracy is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate a certain embodiment of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a disc type centering bracket in a large vertical water pump centering device with a preset offset amount;
FIG. 2 is a schematic structural diagram of an adjustable steel wire weight dropper in the centering device of the large vertical water pump according to the present invention, wherein the offset can be preset;
FIG. 3 is a schematic structural diagram of an adjustable steel wire weight dropper in the centering device of the large vertical water pump according to the present invention, wherein the offset can be preset;
FIG. 4 is a schematic view of the installation of the centering device of the large vertical water pump of the present invention with a preset offset;
FIG. 5 is a schematic illustration of the center shift upon settling of the foundation of the present invention;
FIG. 6 is a schematic view of the center offset of the natural draft formation of the present invention;
wherein, in the figure, 1, a disc type centering support, 2, an adjustable steel wire heavy hammer device; 11. installing a disc; 12. finding a platform; 13. a pillar; 111. bolt holes; 121. installing a limiting groove; 122. a weight hole; 123. A fixing pin hole; 21. installing a chassis; 22. a support pillar; 23. a working platform; 24. a bottom slide rail; 25. a first sliding block; 26. a second sliding block; 27. a steel wire heavy hammer retraction mechanism; 28. a first slide block driving mechanism; 29. A second slide block driving mechanism; 271. retracting and releasing the support; 272. retracting and releasing the roller; 273. a locking mechanism; 281. the first sliding block drives the screw rod; 282. a first screw rod limiting block; 291. the second sliding block drives the screw rod; 292. no. two lead screw stoppers.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, a large vertical water pump centering device with a preset offset according to a preferred embodiment of the present invention includes a disc type centering bracket 1 and an adjustable steel wire weight device 2,
the disc type centering support 1 and the adjustable steel wire heavy hammer device 2 are fixed by a pin joint; the original centering tool is changed into a disc support type of precision machining from a split heads type structure, and then the original steel wire heavy hammer support is changed into an adjustable steel wire heavy hammer device, so that the steel wire heavy hammer support accords with the hole site of the existing disc support, fine adjustment can be carried out, and artificial deviation is eliminated.
The disc type centering support 1 comprises a circular ring-shaped mounting disc 11 located at the bottom, and a plurality of bolt holes 111 used for fixing the disc type centering support 1 are formed in the surface of the mounting disc 11. The circular centering platform 12 is located on the top, an inwards concave circular mounting limiting groove 121 is formed in the center of the top surface of the centering platform 12 and used for mounting and fixing the adjustable steel wire heavy hammer device 2, a through circular heavy hammer hole 122 is formed in the center of the mounting limiting groove 121, and a plurality of fixing pin holes 123 are uniformly formed in the periphery of the heavy hammer hole 122. The centering device is used for fixing the disc type centering support 1 and the adjustable steel wire heavy hammer device 2, wherein the centering support 1 and the centering platform 12 are arranged in parallel and are fixedly connected through a plurality of support columns 13;
the adjustable steel wire heavy hammer device 2 comprises a circular ring-shaped mounting base plate 21 positioned at the bottom, a circular ring-shaped working platform 23 positioned at the top, the working platform 23 and the mounting chassis 21 are fixedly connected through a plurality of supporting columns 22, the surface of the working platform 23 is fixedly connected with a bottom slide rail 24 through a pin, the surface of the bottom slide rail 24 is slidably provided with a first slide block 25, the first slide block 25 can move back and forth in a slide rail groove of the ground slide rail 24, a second sliding block 26 is slidably arranged on the top surface of the first sliding block 25, a steel wire heavy hammer retracting mechanism 27 is fixedly connected to the top of the second sliding block 26, the steel wire weight retraction and release mechanism 27 comprises two retraction and release brackets 271 symmetrically and fixedly connected to the top surface of the first slide block 25, a retraction and release roller 272 is rotatably connected between the two retraction and release brackets 271, and a locking mechanism 273 is arranged on one side of the retraction and release roller 272. The steel wire weight is stored and released by the storing and releasing roller 272, and the storing and releasing roller 272 is fixed by the locking mechanism 273 to control the storing and releasing of the steel wire weight. The rear end of a slider 25 slip direction is connected with a slider actuating mechanism 28, a slider actuating mechanism 28 includes a slider drive lead screw 281 that sets up at a slider 25 direction of motion to and a lead screw stopper 282 of fixed connection on work platform 23 surface, a slider drive lead screw 281 pass a lead screw stopper 282 and pass through rotatable the connection of screw through the screw between a slider 25 through the rotatable lead screw stopper 282 of passing of screw for drive the translation of a slider 25. When the first sliding block 25 needs to be translated, the first sliding block driving screw rod 281 is rotated manually, and the yielding translation is realized through threads between the first sliding block driving screw rod 281 and the first sliding rail 25. The rear end of the second slide block 26 in the sliding direction is connected with a second slide block driving mechanism 29. The second slider driving mechanism 29 comprises a second slider driving screw rod 291 arranged in the moving direction of the second slider 26 and a second screw rod limiting block 292 fixedly connected to the surface of the first slider 25, wherein the second slider driving screw rod 291 can rotatably penetrate through the second screw rod limiting block 292 through threads and can be rotatably connected with the second slider 26 through threads, and the second slider driving screw rod 291 is used for driving the second slider 26 to translate. When the second sliding block 26 needs to be translated, the second sliding block driving screw rod 291 is rotated manually, and the thread between the second sliding block driving screw rod 291 and the second sliding rail 26 realizes conceding translation. The bottom of the first sliding block 25 is connected with the sliding rail groove on the top surface of the bottom sliding rail 24 in a sliding mode, the top of the first sliding block 25 is further provided with a sliding groove which is perpendicular to the sliding rail groove on the top surface of the bottom sliding rail 24 in the direction, and the bottom of the second sliding block 26 is connected with the sliding groove on the top of the first sliding block 25 in a sliding mode.
The working principle of the invention is as follows:
when the large vertical water pump centering device with the preset offset is actually used,
(1) firstly, using a horizontal phase synthesizer to check and measure the level of a motor bottom plate;
(2) mounting the disc type centering support 1), fixing a mounting disc 11 on the bottom surface of the disc type centering support 1 on a base plate of a motor of the vertical pump, and positioning by using a positioning pin to penetrate through a bolt hole 111;
(3) an adjustable steel wire heavy hammer device 2 is arranged at the upper part of the disc type centering support 1, an installation chassis 21 at the bottom of the adjustable steel wire heavy hammer device 2 is clamped in an installation limiting groove 121 on the top surface of a centering platform 12 at the top of the disc type centering support 1, and is in pin joint through a fixing pin hole 123 by a screw;
(4) putting down a steel wire heavy hammer to the pump shell of the vertical pump impeller;
(5) measuring the horizontal distance from a steel wire to a measuring point of a machined surface on the inner wall of a pump shell of the impeller of the vertical pump, and recording measuring data, wherein the measuring point is 8 points in the circumferential direction of the machined surface;
(6) summarizing measurement data and judging the translation direction of the vertical pump cylinder;
(7) after the water pump is started, the displacement of the barrel along the water outlet direction is consistent with the direction of the wind tunnel displacement formed by natural ventilation between water inlets, and the preset offset is carried out in a mode that the experience value is 0.1-0.2 mm, and the preset translation is carried out through a first sliding block 25 and a second sliding block 26 on the surface of the adjustable steel wire heavy hammer device 2 in the direction of the water pump inlet;
(8) the offset of the center during foundation settlement is calculated by the thickness of a stainless steel gasket additionally arranged between the disc type centering support 1 and the motor bottom plate, the preset offset is calculated by measuring the level of the disc type centering support 1 after the gasket is additionally arranged, and the direction and the value of the gasket adjustment during the actual installation of the motor support are calculated according to the thickness of the stainless steel gasket additionally arranged between the disc type centering support 1 and the motor bottom plate on the premise that the level of the centering support is not more than 0.02mm, so that the preset offset is determined;
(9) and after the preset offset is determined and preset is finished, centering the large vertical water pump.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a can predetermine large-scale vertical water pump centering device of offset, includes that support (1) and adjustable steel wire weight device (2) are looked for to the disc type, its characterized in that:
the disc type centering support (1) and the adjustable steel wire heavy hammer device (2) are fixed by a pin joint;
the disc type centering support (1) comprises a circular mounting disc (11) positioned at the bottom and a circular centering platform (12) positioned at the top, and the centering support (1) and the centering platform (12) are arranged in parallel and are fixedly connected through a plurality of supporting columns (13);
steel wire weight device (2) are including ring shape installation chassis (21) that are located the bottom, ring shape work platform (23) that are located the top, through many support columns (22) fixed connection between work platform (23) and installation chassis (21), slide rail (24) are at the bottom of work platform (23) surface through pin fixedly connected with, slide rail (24) surface slidable is equipped with slider (25) No. one, slider (25) top surface slidable is equipped with slider (26) No. two, the top fixedly connected with steel wire weight of slider (26) is received and is released mechanism (27), the rear end of slider (25) slip direction is connected with slider actuating mechanism (28) No. one, the rear end of slider (26) slip direction is connected with slider actuating mechanism (29) No. two.
2. The large vertical water pump centering device with the preset offset according to claim 1, wherein: the surface of the mounting disc (11) is provided with a plurality of bolt holes (111) for fixing the disc type centering support (1).
3. The large vertical water pump centering device with the preset offset according to claim 1, wherein: the centering platform is characterized in that an inwards-concave circular mounting limiting groove (121) is formed in the center of the top surface of the centering platform (12), a through circular weight hole (122) is formed in the center of the mounting limiting groove (121), and a plurality of fixing pin holes (123) are uniformly formed in the periphery of the weight hole (122).
4. The large vertical water pump centering device with the preset offset according to claim 1, wherein: the sliding rail groove slidable of a slider (25) bottom and end slide rail (24) top surface connects, slider (25) top still is equipped with the spout that sets up mutually perpendicularly with the slide rail groove direction of end slide rail (24) top surface, the spout slidable of No. two slider (26) bottoms and a slider (25) top connects.
5. The large vertical water pump centering device with the preset offset according to claim 1, wherein: the steel wire heavy hammer retracting and releasing mechanism (27) comprises two retracting and releasing supports (271) which are symmetrically and fixedly connected to the top surface of a first sliding block (25), a retracting and releasing roller (272) is rotatably connected between the two retracting and releasing supports (271), and a locking mechanism (273) is arranged on one side of the retracting and releasing roller (272).
6. The large vertical water pump centering device with the preset offset according to claim 1, wherein: the first sliding block driving mechanism (28) comprises a first sliding block driving screw rod (281) arranged in the moving direction of the first sliding block (25) and a first screw rod limiting block (282) fixedly connected to the surface of the working platform (23), and the first sliding block driving screw rod (281) can rotatably penetrate through the first screw rod limiting block (282) through threads and is rotatably connected with the first sliding block (25) through the threads and used for driving the first sliding block (25) to translate.
7. The large vertical water pump centering device with the preset offset according to claim 1, wherein: the second sliding block driving mechanism (29) comprises a second sliding block driving screw rod (291) arranged in the moving direction of the second sliding block (26) and a second screw rod limiting block (292) fixedly connected to the surface of the first sliding block (25), and the second sliding block driving screw rod (291) can rotatably penetrate through the second screw rod limiting block (292) through threads and can be rotatably connected with the second sliding block (26) through threads to drive the second sliding block (26) to move horizontally.
8. A method for presetting offset centering of a large vertical water pump is characterized in that the step of presetting offset centering specifically comprises the following steps:
(1) using a horizontal phase synthesizer to check and measure the level of the motor bottom plate;
(2) mounting the disc type centering support (1), fixing the disc type centering support on a bottom plate of a motor of the vertical pump, and positioning by using a positioning pin;
(3) an adjustable steel wire heavy hammer device (2) is arranged at the upper part of the disc type centering support (1);
(4) putting down a steel wire heavy hammer to the pump shell of the vertical pump impeller;
(5) measuring the horizontal distance from the steel wire to a measuring point of a mechanical processing surface on the inner wall of the pump shell of the impeller of the vertical pump, and recording measurement data;
(6) summarizing measurement data and judging the translation direction of the vertical pump cylinder;
(7) after the water pump is started, the direction of the displacement of the barrel along the water outlet direction is consistent with the direction of the wind tunnel displacement formed by natural ventilation between water inlets, and the mode of presetting the offset is to preset translation towards the inlet direction of the water pump by taking an empirical value of 0.1-0.2 mm;
(8) the offset of the center during foundation settlement is calculated by the thickness of a stainless steel gasket additionally arranged between the disc type centering support (1) and the motor bottom plate, the offset is preset in a mode that the gasket is additionally arranged, then the level of the disc type centering support (1) is measured, and on the premise that the level of the centering support is not more than 0.02mm, the direction and the value of the gasket adjustment during the actual installation of the motor support are calculated according to the thickness of the stainless steel gasket additionally arranged between the disc type centering support (1) and the motor bottom plate, so that the preset offset is determined;
(9) and after the preset offset is determined and preset is finished, centering the large vertical water pump.
9. The method for centering the preset offset of the large vertical water pump according to claim 8, wherein the method comprises the following steps: and (5) measuring the horizontal distance from the steel wire to a measuring point of the mechanical processing surface of the inner wall of the pump shell of the impeller of the vertical pump, wherein the measuring point is 8 points in the circumferential direction of the mechanical processing surface.
10. The method for centering the preset offset of the large vertical water pump according to claim 8, wherein the method comprises the following steps: and (3) in the step (7), the preset translation towards the water pump inlet direction is realized through a first sliding block (25) and a second sliding block (26) on the surface of the adjustable steel wire heavy hammer device (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010754885.XA CN111780651B (en) | 2020-07-31 | 2020-07-31 | Large vertical water pump centering device capable of presetting offset and offset presetting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010754885.XA CN111780651B (en) | 2020-07-31 | 2020-07-31 | Large vertical water pump centering device capable of presetting offset and offset presetting method |
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| CN111780651A true CN111780651A (en) | 2020-10-16 |
| CN111780651B CN111780651B (en) | 2024-07-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629475A (en) * | 2020-12-02 | 2021-04-09 | 国网甘肃省电力公司刘家峡水电厂 | Large-scale vertical generator center measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08340662A (en) * | 1995-04-13 | 1996-12-24 | Nachi Fujikoshi Corp | Centering measuring device and measuring method |
| CN105403131A (en) * | 2015-12-11 | 2016-03-16 | 东方电气集团东方汽轮机有限公司 | Upper half and lower half flow passage separate centering method for rotation machinery |
| CN106895759A (en) * | 2017-02-22 | 2017-06-27 | 株洲时代电子技术有限公司 | A kind of rail centering apparatus |
| CN110660290A (en) * | 2019-10-16 | 2020-01-07 | 长春工程学院 | Simulation training platform for realizing center finding of steam turbine partition plate in multiple modes |
| CN212340152U (en) * | 2020-07-31 | 2021-01-12 | 国家能源集团谏壁发电厂 | Large vertical water pump centering device capable of presetting offset |
-
2020
- 2020-07-31 CN CN202010754885.XA patent/CN111780651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08340662A (en) * | 1995-04-13 | 1996-12-24 | Nachi Fujikoshi Corp | Centering measuring device and measuring method |
| CN105403131A (en) * | 2015-12-11 | 2016-03-16 | 东方电气集团东方汽轮机有限公司 | Upper half and lower half flow passage separate centering method for rotation machinery |
| CN106895759A (en) * | 2017-02-22 | 2017-06-27 | 株洲时代电子技术有限公司 | A kind of rail centering apparatus |
| CN110660290A (en) * | 2019-10-16 | 2020-01-07 | 长春工程学院 | Simulation training platform for realizing center finding of steam turbine partition plate in multiple modes |
| CN212340152U (en) * | 2020-07-31 | 2021-01-12 | 国家能源集团谏壁发电厂 | Large vertical water pump centering device capable of presetting offset |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629475A (en) * | 2020-12-02 | 2021-04-09 | 国网甘肃省电力公司刘家峡水电厂 | Large-scale vertical generator center measuring device |
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| CN111780651B (en) | 2024-07-26 |
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