CN220062773U - Hydropower station unit spindle seal floating ring test measuring rod - Google Patents
Hydropower station unit spindle seal floating ring test measuring rod Download PDFInfo
- Publication number
- CN220062773U CN220062773U CN202320834836.6U CN202320834836U CN220062773U CN 220062773 U CN220062773 U CN 220062773U CN 202320834836 U CN202320834836 U CN 202320834836U CN 220062773 U CN220062773 U CN 220062773U
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- rod
- floating ring
- thick
- ring test
- test measuring
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- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000000149 penetrating effect Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model provides a hydropower station unit spindle sealing floating ring test measuring rod which comprises a thick rod and a thin rod arranged at the top end of the thick rod, wherein the joint of the thick rod and the thin rod is in a ladder shape, the bottom end of the thick rod is provided with a strong magnet which is used for being adsorbed on a floating ring, and the top end of the thin rod is abutted against a dial indicator measuring head arranged on a spindle. Through setting up the measuring staff, be convenient for set up the percentage table in the eminence, avoided directly setting up the percentage table on the floating ring, prevent that the percentage table from sinking in water, the staff can directly install outside the water tank and read simultaneously, thick pole and the thin pole through echelonment setting, the focus of measuring staff of being convenient for is by down, has alleviateed holistic weight simultaneously, portable, bottom through thick pole is provided with strong magnet, is convenient for adsorb the measuring staff on the floating ring through strong magnet, has further improved upright stability.
Description
Technical Field
The utility model relates to the field of hydropower station unit floating test, in particular to a spindle sealing floating ring test measuring rod of a hydropower station unit.
Background
The main shaft seal is an important component structure in the hydroelectric generating set, is usually arranged between the water guide bearing and the rotating wheel, and is used for sealing off river water between the main shaft and the fixed part. The installation quality of the main shaft seal directly determines whether the whole unit can safely and stably operate. The main shaft seal floating experiment is an important item of a mechanical part in the maintenance process of the hydro-generator set, and aims to confirm whether a water film is formed between a sealing ring and a swivel in the main shaft seal, so as to establish stable pressure.
At present, the existing test mode is to fix the dial indicator on the main shaft, and make the measuring head of the dial indicator directly contact with the floating ring, and learn the floating condition by observing the data of the dial indicator, however, through the water seal floating test before the study, the following problems are found in the test: firstly, water is continuously filled into the space of the water tank in the test process, the dial indicator is directly erected above the floating ring, the dial indicator is easy to sink into the water, and the floating quantity measurement is easy to be inaccurate and the reading is difficult due to water flow disturbance; secondly, the test environment is complex, the space is narrow, the ground is wet and slippery, great inconvenience is brought to the erection of a dial indicator and reading of operators, and errors are easily caused in the reading, so that the main shaft sealing floating ring test measuring rod of the hydropower station unit is provided for solving the problems.
Disclosure of Invention
The utility model mainly aims to provide a spindle sealing floating ring test measuring rod of a hydropower station unit, and by designing a magnetic attraction type ladder measuring rod structure, a dial indicator can be prevented from being directly erected above a floating ring, and personnel can complete the whole spindle sealing floating test process without entering the water tank, so that the operation difficulty can be reduced, and the test error can be reduced.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a sealed floating ring test measuring staff of power station unit main shaft, includes thick pole and the thin pole of setting on thick pole top, thick pole and the junction of thin pole are echelonment, and the bottom of thick pole is provided with the strong magnet that is used for adsorbing on the floating ring, and the top of thin pole is inconsistent with setting up at the epaxial dial indicator measuring head.
In the preferred scheme, strong magnet passes through countersunk head screw fixation in the bottom of thick pole, and the bottom of thick pole is provided with the bottom screw hole, and the center department of strong magnet is provided with the counter bore, countersunk head screw pass counter bore and bottom screw hole threaded connection.
In the preferred scheme, a detachable connection mode is adopted between the thick rod and the thin rod.
In the preferred scheme, the top center department of thick pole is provided with the top screw hole, and the bottom center department of thin pole is provided with the screw shaft with top screw hole threaded connection.
In the preferred scheme, the slender rod comprises a hollow outer sleeve rod and a telescopic rod which is telescopically inserted into the hollow outer sleeve rod, wherein the top end of the hollow outer sleeve rod is in an opening shape, and a locking structure for locking the height of the telescopic rod is further arranged between the hollow outer sleeve rod and the telescopic rod.
In the preferred scheme, the locking structure includes that two sets of symmetries set up the locking hole on hollow outer loop pole wall and set up the auto-lock fastener in telescopic link bottom, and wherein a set of locking hole comprises a plurality of evenly distributed's locking hole, and auto-lock fastener is including setting up at the cavity of telescopic link bottom, seting up at the cavity both ends and running through the perforation of telescopic link, built-in tension spring in the cavity, the limiting plate of setting at tension spring both ends to and set firmly at the limiting plate another side and pass fenestrate locking head.
In the preferred scheme, two limiting grooves are symmetrically formed in the inner wall surface of the hollow outer sleeve rod, and two limiting blocks corresponding to the limiting grooves are arranged on the outer wall surface of the telescopic rod.
In the preferred scheme, the top of telescopic link is provided with the interference head that the external diameter is the same with hollow outer loop bar, and the center department at contact top is provided with the recess that is inconsistent with the dial indicator measuring head.
The utility model provides a spindle sealing floating ring test measuring bar of a hydropower station unit, which is convenient to set a dial indicator at a high position by arranging the measuring bar, avoids directly setting the dial indicator on the floating ring, prevents the dial indicator from sinking in water, simultaneously enables personnel to directly install and read outside a water tank, is convenient for the gravity center of the measuring bar to be lower by a coarse bar and a fine bar which are arranged in a stepped manner, simultaneously reduces the overall weight, is convenient to carry, and is convenient to adsorb the measuring bar on the floating ring by a strong magnet by the bottom of the coarse bar, thereby further improving the erection stability.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a diagram of the connection structure of a thick rod and a thin rod according to the present utility model;
FIG. 2 is an exploded view of the connection structure of the thick rod and the strong magnet of the present utility model;
FIG. 3 is an exploded view of the overall structure of the present utility model;
FIG. 4 is a telescopic construction of the utility model;
FIG. 5 is a block diagram of a hollow jacket pole of the present utility model;
FIG. 6 is a block diagram of a telescoping rod of the present utility model;
FIG. 7 is a block diagram of a self-locking clip of the present utility model;
in the figure: a thick rod 1; a bottom threaded hole 101; a top threaded hole 102; a thin rod 2; a strong magnet 3; countersunk head screws 4; a threaded shaft 201; a locking hole 2021; a hollow outer sleeve 202; a telescopic rod 203; a cavity 2031; perforations 2032; a tension spring 2033; a limit plate 2034; a locking head 2035; a stopper 2036; a contact abutment 204; a recess 205.
Detailed Description
Example 1
As shown in figures 1-2, the spindle sealing floating ring test measuring rod of the hydropower station unit comprises a thick rod 1 and a thin rod 2 arranged at the top end of the thick rod 1, wherein the diameter of the thick rod 1 is larger than that of the thin rod 2, the thin rod 2 is arranged at the center of the top end of the thick rod 1, the joint of the thick rod 1 and the thin rod 2 is in a step shape, the gravity center of the measuring rod is further kept down, the whole weight of the measuring rod is lightened, a strong magnet 3 used for being adsorbed on the floating ring is arranged at the bottom end of the thick rod 1, convenient and fast installation can be realized, and the top end of the thin rod 2 is in conflict with a dial indicator measuring head arranged on a spindle.
The dial indicator is fixed on the main shaft through the universal measuring magnetic attraction of the magnetic attraction frame, and the measuring head of the dial indicator is perpendicular to the top end face of the thin rod 2.
When the measuring rod is used, the measuring head of the dial indicator is vertically contacted with the top end surface of the thin rod 2 through the magnetic attraction of the strong magnet 3 arranged at the bottom of the measuring rod, when clean water is injected into the groove at the bottom of the sealing ring, the floating quantity of the floating ring can be transferred to the dial indicator through the measuring rod, the phenomenon that the dial indicator is submerged in water is thoroughly avoided, and the whole process staff can directly read outside the water tank.
In this embodiment, the thick rod 1 has a diameter of 40mm and a length of 200mm, and the thin rod 2 has a diameter of 20mm and a length of 400mm.
In the preferred scheme, strong magnet 3 passes through countersunk head screw 4 to be fixed in the bottom of thick pole 1, and the bottom of thick pole 1 is provided with bottom screw hole 101, and the center department of strong magnet 3 is provided with counter bore 301, countersunk head screw 4 pass counter bore 301 and bottom screw hole 101 threaded connection to countersunk head screw 4 is embedded to in counter bore 301, makes the bottom surface of strong magnet 3 become the plane form.
Example 2
Further describing in connection with embodiment 1, as shown in fig. 3, the thick rod 1 and the thin rod 2 are detachably connected, so that the thick rod 1 and the thin rod 2 are conveniently detached when being carried, and portability is improved, wherein a top threaded hole 102 is formed in the center of the top end of the thick rod 1, a threaded shaft 201 in threaded connection with the top threaded hole 102 is formed in the center of the bottom end of the thin rod 2, and the threaded shaft 201 and the thin rod 2 are integrally formed.
Example 3
As further described in connection with embodiment 1 or 2, as shown in fig. 4-7, the thin rod 2 comprises a hollow outer sleeve rod 202 and a telescopic rod 203 telescopically inserted into the hollow outer sleeve rod 202, wherein the top end of the hollow outer sleeve rod 202 is in an opening shape, the outer diameter of the telescopic rod 203 is slightly smaller than the hollow inner diameter of the hollow outer sleeve rod 202, and a locking structure for locking the height of the telescopic rod 203 is further arranged between the hollow outer sleeve rod 202 and the telescopic rod 203, so that the use height of the thin rod can be adjusted by telescoping the telescopic rod 203 in the hollow outer sleeve rod 202, and the length of the thin rod can be further reduced when the thin rod is carried.
In a preferred embodiment, the locking structure includes two sets of locking holes 2021 symmetrically disposed on the wall surface of the hollow outer sleeve 202 and a self-locking clamping member disposed at the bottom of the telescopic rod 203, where one set of locking holes 2021 is composed of a plurality of locking holes 2021 uniformly distributed, in this embodiment, the number of the locking holes 2021 in one set is five, and the self-locking clamping member includes a cavity 2031 disposed at the bottom of the telescopic rod 203, a through hole 2032 formed at two ends of the cavity 2031 and penetrating through the telescopic rod 203, a tension spring 2033 disposed in the cavity 2031, a limiting plate 2034 disposed at two ends of the tension spring 2033, and a locking head 2035 fixedly disposed at the other surface of the limiting plate 2034 and penetrating through the through hole 2032, where the diameter of the limiting plate 2034 is greater than that of the through hole 2032.
In use, the locking head 2035 passes through the locking hole 2021 by the tension of the tension spring 2033, thereby achieving the effect of fixing the height of the telescopic rod 203, and simultaneously, the locking head 2035 is pressed to be contracted, so that the fixation can be released.
In the preferred solution, two limiting grooves 2022 are symmetrically disposed on the inner wall surface of the hollow outer sleeve 202, two limiting blocks 2036 corresponding to the limiting grooves 2022 are welded on the outer wall surface of the telescopic rod 203, and the limiting effect is achieved by sliding the limiting blocks 2036 in the limiting grooves 2022, so that the telescopic rod 203 is prevented from rotating, and the locking head 2035 cannot be aligned with the locking hole 2021.
In the preferred scheme, the top welding of telescopic link 203 has the external diameter to be the same with the conflict head 204 of hollow outer loop bar 202, and the center department on conflict head 204 top is provided with the recess 205 that is inconsistent with the dial indicator measuring head, and the measuring head of percentage table can be aimed at fast to the support contact 204 of being convenient for.
In this embodiment, the thick rod 1 has a diameter of 40mm and a length of 200mm; the outer diameter of the hollow outer sleeve 202 is 20mm, the inner diameter is 17 mm, and the length is 220mm; the telescopic rod 203 has a diameter of 16mm and a length of 220mm.
The above embodiments are only preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the scope of the present utility model should be defined by the claims, including the equivalents of the technical features in the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (8)
1. A hydropower station unit main shaft seal floating ring test measuring rod is characterized in that: including thick pole (1) and setting up thin pole (2) on thick pole (1) top, the junction of thick pole (1) and thin pole (2) is echelonment, and the bottom of thick pole (1) is provided with and is used for adsorbing strong magnet (3) on the floating ring, and the top of thin pole (2) is inconsistent with the dial indicator measuring head that sets up on the main shaft.
2. The hydropower station unit spindle sealing floating ring test measuring bar according to claim 1, wherein the spindle sealing floating ring test measuring bar is characterized in that: the strong magnet (3) is fixed at the bottom of the thick rod (1) through the countersunk head screw (4), a bottom thread hole (101) is formed in the bottom of the thick rod (1), a counter bore (301) is formed in the center of the strong magnet (3), and the countersunk head screw (4) penetrates through the counter bore (301) and is in threaded connection with the bottom thread hole (101).
3. The hydropower station unit spindle sealing floating ring test measuring bar according to claim 1, wherein the spindle sealing floating ring test measuring bar is characterized in that: the thick rod (1) and the thin rod (2) are detachably connected.
4. A hydropower station unit spindle seal floating ring test stand according to claim 3, characterized in that: the center of the top end of the thick rod (1) is provided with a top end threaded hole (102), and the center of the bottom end of the thin rod (2) is provided with a threaded shaft (201) in threaded connection with the top end threaded hole (102).
5. The hydropower station unit main shaft seal floating ring test measuring bar according to any one of claims 1-4, wherein: the slender rod (2) comprises a hollow outer sleeve rod (202) and a telescopic rod (203) which is telescopically inserted into the hollow outer sleeve rod (202), wherein the top end of the hollow outer sleeve rod (202) is in an opening shape, and a locking structure for locking the height of the telescopic rod (203) is further arranged between the hollow outer sleeve rod (202) and the telescopic rod (203).
6. The hydropower station unit spindle sealing floating ring test measuring bar according to claim 5, wherein the spindle sealing floating ring test measuring bar is characterized in that: the locking structure comprises two groups of locking holes (2021) symmetrically arranged on the wall surface of the hollow outer sleeve rod (202) and a self-locking clamping piece arranged at the bottom of the telescopic rod (203), wherein one group of locking holes (2021) consists of a plurality of uniformly distributed locking holes (2021), the self-locking clamping piece comprises a cavity (2031) arranged at the bottom of the telescopic rod (203), through holes (2032) formed in two ends of the cavity (2031) and penetrating through the telescopic rod (203), tension springs (2033) arranged in the cavity (2031), limiting plates (2034) arranged at two ends of the tension springs (2033) and locking heads (2035) fixedly arranged on the other sides of the limiting plates (2034) and penetrating through the through holes (2032).
7. The hydropower station unit spindle sealing floating ring test measuring bar according to claim 6, wherein the spindle sealing floating ring test measuring bar is characterized in that: two limit grooves (2022) are symmetrically formed in the inner wall surface of the hollow outer sleeve rod (202), and two limit blocks (2036) corresponding to the limit grooves (2022) are arranged on the outer wall surface of the telescopic rod (203).
8. The hydropower station unit spindle sealing floating ring test measuring bar according to claim 7, wherein the spindle sealing floating ring test measuring bar is characterized in that: the top of telescopic link (203) is provided with conflict head (204) that the external diameter is the same with hollow outer loop bar (202), and the center department on conflict head (204) top is provided with recess (205) that are inconsistent with the dial indicator measuring head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320834836.6U CN220062773U (en) | 2023-04-14 | 2023-04-14 | Hydropower station unit spindle seal floating ring test measuring rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320834836.6U CN220062773U (en) | 2023-04-14 | 2023-04-14 | Hydropower station unit spindle seal floating ring test measuring rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220062773U true CN220062773U (en) | 2023-11-21 |
Family
ID=88763477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320834836.6U Active CN220062773U (en) | 2023-04-14 | 2023-04-14 | Hydropower station unit spindle seal floating ring test measuring rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220062773U (en) |
-
2023
- 2023-04-14 CN CN202320834836.6U patent/CN220062773U/en active Active
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