CN220523115U - Coupling for million-grade boiler feed pump test platform - Google Patents
Coupling for million-grade boiler feed pump test platform Download PDFInfo
- Publication number
- CN220523115U CN220523115U CN202321980686.6U CN202321980686U CN220523115U CN 220523115 U CN220523115 U CN 220523115U CN 202321980686 U CN202321980686 U CN 202321980686U CN 220523115 U CN220523115 U CN 220523115U
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- feed pump
- shaft
- torque meter
- end connecting
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- 238000012360 testing method Methods 0.000 title claims abstract description 45
- 230000008878 coupling Effects 0.000 title claims abstract description 22
- 238000010168 coupling process Methods 0.000 title claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 125000006850 spacer group Chemical group 0.000 claims description 59
- 238000003475 lamination Methods 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of couplings, in particular to a coupling for a million-grade boiler feed pump test platform, which is used for connecting a torque meter with a main shaft of a boiler feed pump and comprises a torque meter end flange, a spacing shaft and a feed pump end flange; one end of the torque meter end flange is connected with the torque meter, the end far away from the torque meter is connected with the spacing shaft and the water feeding pump end flange in sequence, and the end far away from the torque meter end flange of the water feeding pump end flange is connected with the main shaft of the boiler water feeding pump. The coupling for the million-grade boiler feed pump test platform has a simple structure, reduces the workload of test site operation, and improves the safety and reliability of the operation of the million-grade boiler feed pump test; the design of the flanges at the two sides meets the test requirement of high rotating speed of the water supply pump of the million-grade boiler. After the test, the water feed pump end flange connected with the water feed pump can be used as a product flange, so that the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of couplings, in particular to a coupling for a million-grade boiler feed pump test platform.
Background
The national energy agency [2020]65 requires further strengthening of the critical equipment security work of advanced coal electric machine sets, emphasizes the domestic tasks of the critical equipment to be greatly advanced, wherein the domestic manufacturing, test and application of the 100% capacity boiler feed pump of the 1000MW ultra-supercritical machine set are important.
Therefore, in the water feed pump test process, the coupler which is convenient to assemble and disassemble and can meet the high requirement of the million-grade boiler water feed pump test rotating speed is very important.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide the coupling for the million-grade boiler feed pump test platform, which has a simple structure, is convenient to assemble and disassemble, and does not need core pulling package operation for replacing bearings and seals.
The aim of the utility model can be achieved by the following technical scheme:
the utility model provides a coupling for a million-grade boiler feed pump test platform, which is used for connecting a torquer with a main shaft of a boiler feed pump and comprises a torquer end flange, a spacing shaft and a feed pump end flange;
one end of the torque meter end flange is connected with the torque meter, the end far away from the torque meter is connected with the spacing shaft and the water feeding pump end flange in sequence, and the end far away from the torque meter end flange of the water feeding pump end flange is connected with the main shaft of the boiler water feeding pump.
In one embodiment of the utility model, the spacer shaft facilitates the disassembly and maintenance of bearings and seals during testing, and does not require moving drive equipment, thereby greatly reducing the workload of workshops.
In one embodiment of the utility model, the torque meter end flange comprises a torque meter end connecting shaft and a torque meter end connecting flange with the same central axis;
the torque meter end connecting flange is arranged at one end part of the torque meter end connecting shaft along the length direction;
and a plurality of first holes are symmetrically formed in the torque meter end connecting flange.
In one embodiment of the utility model, the inner wall of the torque meter end connecting shaft is provided with a spline and is connected with the torque meter through the spline;
the arrangement of the spline can improve the transmitted torque compared with the conventional single-key arrangement.
In one embodiment of the utility model, the spacer comprises a spacer main shaft, a spacer first flange and a spacer second flange with the same central axis;
the end part of the spacer spindle, which is close to the torque meter end flange, is provided with a spacer first flange, and the end part of the spacer spindle, which is close to the water supply pump end flange, is provided with a spacer second flange;
a plurality of second holes are symmetrically arranged on the first flange of the interval shaft, and the number of the second holes is the same as that of the first holes, and the positions of the second holes are corresponding to those of the first holes;
and a plurality of third holes are symmetrically formed in the second flange of the interval shaft.
In one embodiment of the utility model, the water feed pump end flange comprises a water feed pump end connecting shaft and a water feed pump end connecting flange with the same central axis;
the water feed pump end connecting flange is arranged at the end part of the water feed pump end connecting shaft, close to the spacing shaft, and the water feed pump end connecting shaft is in interference connection with the main shaft of the water feed pump of the boiler;
the water supply pump end connecting flange is symmetrically provided with a plurality of fourth holes, the number of the fourth holes is the same as that of the third holes, and the positions of the fourth holes are corresponding to those of the third holes.
In one embodiment of the utility model, the connecting shaft of the water feeding pump end and the main shaft of the boiler water feeding pump transmit torque through taper interference, and the shaft extension of the main shaft of the boiler water feeding pump is designed to be tapered and has better centering performance than a cylindrical shaft. The interference connection has higher reliability than the key connection.
In one embodiment of the utility model, a plug connected with an oiling oil pump is arranged on the water supply pump end connecting shaft.
In one embodiment of the utility model, a first lamination is arranged between the torque meter end connecting flange and the spacer shaft first flange, and the torque meter end connecting flange is connected with the spacer shaft first flange through a first bolt and a first nut;
the first bolts sequentially penetrate through the torque meter end connecting flange, the first lamination and the spacer shaft first flange and then are fixed through the first nuts, or the first bolts sequentially penetrate through the spacer shaft first flange, the first lamination and the torque meter end connecting flange and then are fixed through the first nuts.
In one embodiment of the utility model, a first gasket is arranged between the first nut and the torque meter end connecting flange, or a first gasket is arranged between the first nut and the spacer shaft first flange;
the first lamination is provided with more than one.
In one embodiment of the utility model, a second lamination is arranged between the second flange of the spacing shaft and the water supply pump end connecting flange, and the second flange of the spacing shaft is connected with the water supply pump end connecting flange through a second bolt and a second nut;
the second bolts sequentially penetrate through the second flange of the spacing shaft, the second lamination and the connecting flange of the water feeding pump end and then are fixed by using second nuts, or the second bolts sequentially penetrate through the connecting flange of the water feeding pump end, the second lamination and the second flange of the spacing shaft and then are fixed by using second nuts.
In one embodiment of the utility model, a second gasket is arranged between the second nut and the second flange of the spacer shaft, or a second gasket is arranged between the second nut and the connecting flange of the water feeding pump end;
the second lamination is provided with more than one.
In one embodiment of the utility model, the arrangement of the first lamination and the second lamination enhances the bearing capacity of the coupler, has good compensation performance, and can meet the requirement of high test rotating speed of the million-grade boiler feed pump test.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The coupling for the million-grade boiler feed pump test platform has the advantages of simple structure, convenient installation and disassembly, and improved safety and reliability of feed pump tests;
(2) The intermediate shaft of the coupler for the million-grade boiler feed pump test platform is convenient to detach and maintain in the test, does not need to move driving equipment, and greatly reduces workshop labor force;
(3) The torque meter end flange and the water feed pump end flange in the coupler for the million-grade boiler water feed pump test platform have high design bearing capacity and good centering performance, and meet the test requirement of high rotating speed of the million-grade boiler water feed pump. After the test, the water feed pump end flange connected with the water feed pump can be used as a product flange, so that the production cost is reduced.
Drawings
FIG. 1 is a schematic structural view of a million-level boiler feed pump test platform coupler of the present utility model;
FIG. 2 is a side view of a million-grade boiler feedwater pump test platform coupler of the present utility model;
FIG. 3 is a schematic diagram of the structure of a torque meter end flange in a million-level boiler feed pump test platform coupler of the present utility model;
FIG. 4 is a schematic view of the structure of the spacer shaft in a million-grade boiler feed pump test platform coupler of the present utility model;
FIG. 5 is a schematic view of the structure of a feed pump end flange in a million-level boiler feed pump test platform coupling according to the present utility model;
FIG. 6 is a schematic illustration of an application of a million-level boiler feedwater pump test platform coupler of the present utility model;
reference numerals in the drawings: 1. a torque meter end flange; 11. the torque meter end is connected with the shaft; 111. a spline; 12. the torque meter end is connected with a flange; 121. a first hole; 2. a spacer shaft; 21. a spacer spindle; 22. a spacer shaft first flange; 221. a second hole; 23. a spacer shaft second flange; 231. a third hole; 3. a water feed pump end flange; 31. a water supply pump end connecting shaft; 311. a plug; 32. a water supply pump connecting flange; 321. a fourth hole; 41. a first nut; 42. a second nut; 51. a first gasket; 52. a second gasket; 61. a first lamination; 62. a second lamination; 71. a first bolt; 72. a second bolt; 8. a torque meter; 9. a boiler feed water pump; 91. a main shaft of a boiler feed water pump.
Detailed Description
The utility model will now be described in detail with reference to the drawings and specific examples.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Example 1
The embodiment provides a coupling for a million-grade boiler feed pump test platform.
The coupling for the million-grade boiler feed pump test platform is used for connecting a torque meter 8 and a main shaft 91 of a boiler feed pump 9 in use, and comprises a torque meter end flange 1, a spacing shaft 2 and a feed pump end flange 3 as shown in fig. 1-6; one end part of the torque meter end flange 1 is connected with a torque meter 8, the end part far away from the torque meter is connected with a spacing shaft 2 and a water feeding pump end flange 3 in sequence, and the end part of the water feeding pump end flange 3 far away from the torque meter end flange 1 is connected with a boiler water feeding pump main shaft 91;
the spacer shaft 2 facilitates the dismantling and maintenance of bearings and seals in the test, and does not need to move driving equipment, so that the workload of workshops is greatly reduced.
Further, the torque meter end flange 1 comprises a torque meter end connecting shaft 11 and a torque meter end connecting flange 12 with the same central axis; the torque meter end connecting flange 12 is arranged at one end part of the torque meter end connecting shaft 11 along the length direction; a plurality of first holes 121 are symmetrically arranged on the torque meter end connecting flange 12; the inner wall of the torque meter end connecting shaft 11 is provided with a spline 111, and is connected with the torque meter 8 through the spline 111; the provision of splines 111 enables an improved torque to be transmitted compared to conventional single-key arrangements.
The spacer shaft 2 comprises a spacer shaft main shaft 21, a spacer shaft first flange 22 and a spacer shaft second flange 23, wherein the central axes of the spacer shaft main shaft 21 are identical; the end part of the spacer spindle 21, which is close to the torquer end flange 1, is provided with a spacer first flange 22, and the end part of the spacer spindle, which is close to the feed pump end flange 3, is provided with a spacer second flange 23; a plurality of second holes 221 are symmetrically arranged on the first flange 22 of the spacing shaft, and the number and the positions of the second holes 221 are the same as those of the first holes 121; the second flange 23 of the spacer shaft is symmetrically provided with a plurality of third holes 231.
The water feed pump end flange 3 comprises a water feed pump end connecting shaft 31 and a water feed pump end connecting flange 32 with the same central axis; the feed pump end connecting flange 32 is arranged at the end part of the feed pump end connecting shaft 31, which is close to the spacing shaft 2, and the feed pump end connecting shaft 31 is in interference connection with the main shaft 91 of the boiler feed pump; a plurality of fourth holes 321 are symmetrically arranged on the water supply pump end connecting flange 32, the number of the fourth holes 321 is the same as that of the third holes 231, and the positions of the fourth holes 321 are corresponding to the positions of the third holes 231; a plug 311 is arranged on the water supply pump end connecting shaft 31;
when the water feeding pump end flange 3 is installed, the plug 311 is further connected with an oiling pump. The water feeding pump end flange 3 is installed through an oiling oil pump and a propelling oil pump, and the interference with the shaft is ensured through a certain propelling amount; the connecting shaft 31 at the water feed pump end and the main shaft of the boiler water feed pump transmit torque through taper interference, and the shaft extension section of the main shaft of the boiler water feed pump is designed to be conical and has better centering performance than a cylindrical shaft; the interference connection has higher reliability than the key connection.
A first lamination 61 is arranged between the torque meter end connecting flange 12 and the spacer shaft first flange 22, and the torque meter end connecting flange 12 is connected with the spacer shaft first flange 22 through a first bolt 71 and a first nut 41; the first bolts 71 pass through the torque meter end connection flange 12, the first lamination 61 and the spacer shaft first flange 22 in sequence and then are fixed by the first nuts 41, or the first bolts 71 pass through the spacer shaft first flange 22, the first lamination 61 and the torque meter end connection flange 12 in sequence and then are fixed by the first nuts 41; a first washer 51 is disposed between the first nut 41 and the torque meter end connection flange 12, or a first washer 51 is disposed between the first nut 41 and the spacer shaft first flange 22; the first lamination 61 is provided with more than one.
A second lamination 62 is arranged between the spacer shaft second flange 23 and the water supply pump end connecting flange 32, and the spacer shaft second flange 23 is connected with the water supply pump end connecting flange 32 through a second bolt 72 and a second nut 42; the second bolts 72 pass through the spacer shaft second flange 23, the second lamination 62 and the feed pump end connecting flange 32 in sequence and then are fixed by the second nuts 42, or the second bolts 72 pass through the feed pump end connecting flange 32, the second lamination 62 and the spacer shaft second flange 23 in sequence and then are fixed by the second nuts 42; a second washer 52 is arranged between the second nut 42 and the spacer shaft second flange 23, or a second washer 52 is arranged between the second nut 42 and the feed pump end connecting flange 32; the second laminate 62 is provided with more than one.
The arrangement of the first lamination 61 and the second lamination 62 enhances the bearing capacity of the coupler, has good compensation performance, and can meet the requirement of high test rotating speed of the million-grade boiler feed pump test.
The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the explanation of the present utility model, should make improvements and modifications without departing from the scope of the present utility model.
Claims (10)
1. The coupler for the million-grade boiler feed pump test platform is used for connecting a torque meter (8) and a main shaft (91) of a boiler feed pump and is characterized by comprising a torque meter end flange (1), a spacing shaft (2) and a feed pump end flange (3);
one end of the torque meter end flange (1) is used for being connected with a torque meter (8), the end far away from the torque meter is connected with a spacing shaft (2) and a water feeding pump end flange (3) in sequence, and the end far away from the torque meter end flange (1) of the water feeding pump end flange (3) is used for being connected with a boiler water feeding pump main shaft (91).
2. The coupling for the million-grade boiler feed pump test platform of claim 1, characterized in that the torque meter end flange (1) comprises a torque meter end connecting shaft (11) and a torque meter end connecting flange (12) with the same central axis;
the torque meter end connecting flange (12) is arranged at one end part of the torque meter end connecting shaft (11) along the length direction;
a plurality of first holes (121) are symmetrically formed in the torque meter end connecting flange (12).
3. The coupling for the million-grade boiler feed pump test platform of claim 2, characterized in that the inner wall of the torque meter end connecting shaft (11) is provided with a spline (111) and is connected with the torque meter (8) through the spline (111).
4. The coupling for the million-grade boiler feed pump test platform of claim 2, wherein the spacer shaft (2) comprises a spacer shaft main shaft (21), a spacer shaft first flange (22) and a spacer shaft second flange (23) with the same central axis;
the end part of the spacer spindle (21) close to the torque meter end flange (1) is provided with a spacer first flange (22), and the end part of the spacer spindle close to the water feeding pump end flange (3) is provided with a spacer second flange (23);
a plurality of second holes (221) are symmetrically arranged on the first flange (22) of the interval shaft, and the number and the positions of the second holes (221) are the same as those of the first holes (121);
and a plurality of third holes (231) are symmetrically arranged on the second flange (23) of the interval shaft.
5. The coupling for the million-grade boiler feed pump test platform of claim 4, wherein the feed pump end flange (3) comprises a feed pump end connecting shaft (31) and a feed pump end connecting flange (32) with the same central axis;
the water feed pump end connecting flange (32) is arranged at the end part of the water feed pump end connecting shaft (31) close to the spacing shaft (2), and the water feed pump end connecting shaft (31) is in interference connection with the main shaft (91) of the water feed pump of the boiler;
a plurality of fourth holes (321) are symmetrically arranged on the water supply pump end connecting flange (32), the number of the fourth holes (321) is the same as that of the third holes (231), and the positions of the fourth holes are corresponding to those of the third holes.
6. The coupling for a million-grade boiler feed pump test platform of claim 5, wherein a plug (311) is provided on the feed pump end connecting shaft (31).
7. The coupling for the million-grade boiler feed pump test platform according to claim 5, characterized in that a first lamination (61) is arranged between the torque meter end connecting flange (12) and the spacer shaft first flange (22), and the torque meter end connecting flange (12) and the spacer shaft first flange (22) are connected through a first bolt (71) and a first nut (41);
the first bolts (71) sequentially penetrate through the torque meter end connecting flange (12), the first lamination (61) and the spacer shaft first flange (22) and then are fixed through the first nuts (41), or the first bolts (71) sequentially penetrate through the spacer shaft first flange (22), the first lamination (61) and the torque meter end connecting flange (12) and then are fixed through the first nuts (41).
8. The coupling for a million-grade boiler feed pump test platform of claim 7, characterized in that a first washer (51) is provided between the first nut (41) and the torque meter end connecting flange (12), or a first washer (51) is provided between the first nut (41) and the spacer shaft first flange (22);
the first lamination (61) is provided with more than one.
9. The coupling for a million-grade boiler feed pump test platform of claim 8, wherein a second lamination (62) is arranged between the spacer shaft second flange (23) and the feed pump end connecting flange (32), and the spacer shaft second flange (23) and the feed pump end connecting flange (32) are connected through a second bolt (72) and a second nut (42);
the second bolts (72) sequentially penetrate through the spacer shaft second flange (23), the second lamination (62) and the water supply pump end connecting flange (32) and then are fixed through the second nuts (42), or the second bolts (72) sequentially penetrate through the water supply pump end connecting flange (32), the second lamination (62) and the spacer shaft second flange (23) and then are fixed through the second nuts (42).
10. The coupling for the million-grade boiler feed pump test platform of claim 9, characterized in that a second gasket (52) is arranged between the second nut (42) and the spacer shaft second flange (23), or a second gasket (52) is arranged between the second nut (42) and the feed pump end connecting flange (32);
the second lamination (62) is provided with more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321980686.6U CN220523115U (en) | 2023-07-26 | 2023-07-26 | Coupling for million-grade boiler feed pump test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321980686.6U CN220523115U (en) | 2023-07-26 | 2023-07-26 | Coupling for million-grade boiler feed pump test platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220523115U true CN220523115U (en) | 2024-02-23 |
Family
ID=89937736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321980686.6U Active CN220523115U (en) | 2023-07-26 | 2023-07-26 | Coupling for million-grade boiler feed pump test platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220523115U (en) |
-
2023
- 2023-07-26 CN CN202321980686.6U patent/CN220523115U/en active Active
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