CN220168064U - Guide bearing swing degree measuring device and hydraulic generator - Google Patents
Guide bearing swing degree measuring device and hydraulic generator Download PDFInfo
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- CN220168064U CN220168064U CN202320321844.0U CN202320321844U CN220168064U CN 220168064 U CN220168064 U CN 220168064U CN 202320321844 U CN202320321844 U CN 202320321844U CN 220168064 U CN220168064 U CN 220168064U
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- oil basin
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- measuring device
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- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000523 sample Substances 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model discloses a guide bearing swing degree measuring device and a hydraulic generator, wherein the guide bearing swing degree measuring device comprises a main shaft, a shaft collar, a tile frame, a support and a swing degree sensor, the main shaft comprises a shaft section arranged in an oil basin of the hydraulic generator, the shaft collar is arranged in the oil basin and is coaxially connected with the shaft section, the tile frame is arranged in the oil basin, the support is arranged in the oil basin, a first end of the support is connected with the tile frame, the swing degree sensor is arranged at a second end of the support, and the swing degree sensor is adjacent to the shaft collar and is suitable for measuring the swing degree of the shaft collar. The guide bearing swing degree measuring device provided by the utility model has the advantage of higher measurement accuracy of the guide bearing swing degree.
Description
Technical Field
The utility model relates to the technical field of hydroelectric generating sets, in particular to a guide bearing swing degree measuring device and a hydroelectric generator.
Background
The hydroelectric generating set is generally provided with an upper guide bearing, a lower guide bearing and a water guide bearing, wherein the upper guide bearing is used for bearing radial mechanical unbalance force and electromagnetic unbalance force of a rotating part of the set, the water guide bearing is used for bearing radial force transmitted by a main shaft under various working conditions, so that the main shaft axis swings within a specified range, the standard of GB/T8564-2003 requires that the running swing degree (double amplitude value) of the set is not more than 75% of the total clearance of the bearing, and the current requirement of each power plant on the swing degree of the guide bearing of the set is higher, so that the effect that the swing degree of the guide bearing is within one hundred micrometers or even tens of micrometers is achieved.
In the related art, a sensor is installed on the oil basin cover plate/top wall, the sensor is used for measuring the swing degree of the main shaft, and then the swing degree of the guide bearing is mapped by the measured value of the swing degree of the main shaft. And the contact part of the oil basin cover plate and the main shaft is sealed by the sealing teeth. When the machine set runs and drives the main shaft to rotate, the main shaft and the sealing teeth rub, so that the oil basin cover plate is driven to vibrate, the position of the sensor changes along with the vibration, and the measuring accuracy of the swing degree of the guide bearing is reduced.
In addition, when the main shaft and the seal teeth are rubbed, a shaft section on the main shaft adjacent to the seal teeth is susceptible to thermal expansion, so that the diameter of the shaft section is increased, and the distance between the peripheral surface of the shaft section and the sensor probe is reduced, thereby further reducing the accuracy of measuring the swing degree of the main shaft, and further reducing the accuracy of measuring the swing degree of the guide bearing.
In summary, the related art has a problem that the accuracy of measuring the swing degree of the guide bearing is low.
Disclosure of Invention
The present utility model aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the utility model provides a guide bearing swing degree measuring device, which has the advantage of higher measurement accuracy of the guide bearing swing degree.
The embodiment of the utility model also provides a hydraulic generator.
The guide bearing swing degree measuring device comprises a main shaft, a shaft collar, a tile frame, a support and a swing degree sensor, wherein the main shaft comprises a shaft section arranged in an oil basin of a hydraulic generator, and the shaft collar is arranged in the oil basin and is coaxially connected with the shaft section; the tile is erected in the oil basin; the support is arranged in the oil basin, and the first end of the support is connected with the tile rack; the swing sensor is mounted at the second end of the bracket, adjacent to the collar and adapted to measure the swing of the collar.
According to the guide bearing swing degree measuring device provided by the embodiment of the utility model, the swing degree of the shaft collar can be mapped to the swing degree of the main shaft, and the swing degree of the main shaft can be mapped to the swing degree of the guide bearing. The swing degree sensor is arranged in the oil basin. Therefore, when the main shaft rotates and drives the oil basin top wall to vibrate, the vibration of the oil basin top wall has limited effect on the swing degree sensor arranged in the oil basin, in other words, the position of the swing degree sensor is not basically influenced by the vibration of the oil basin top wall. Therefore, the swinging degree of the shaft collar measured by the swinging degree sensor is more accurate.
In addition, in the present embodiment, although the main shaft portion adjacent to the top wall of the oil pan expands due to heat generation by friction, the expansion does not affect the shaft section in the oil pan, and thus the collar in the oil pan. In other words, the diameters of the shaft section and the collar in the oil basin remain unchanged as the spindle rotates. Therefore, the measurement accuracy of the swing sensor is further improved.
In some embodiments, the guide bearing runout measuring device further comprises a connecting plate and an insulating member, wherein the connecting plate connects the first end of the bracket and the tile bracket, and the first end of the bracket is connected with the connecting plate through the insulating member.
In some embodiments, the insulating member includes any one of an insulating rubber pad and an insulating resin plate.
In some embodiments, the bracket comprises a first plate, a connecting bolt and a second plate, wherein the plate surface of the first plate is parallel to the horizontal direction, the connecting plate is fixedly arranged at the top end of the tile frame, the insulating piece is stacked at the top end of the connecting plate, and the first end of the first plate is stacked at the top end of the insulating piece; the first plate and the insulating piece are both provided with a via hole, the connecting plate is provided with a threaded hole, the via hole and the threaded hole extend vertically and are coaxial, the screw rod part of the connecting bolt is connected with the threaded hole through the via hole in a threaded manner, and the head part of the connecting bolt is abutted against the first end of the first plate; the second plate extends in a vertical direction, and the bottom end of the second plate is connected with the second end of the first plate, and the swing sensor is mounted at the top end of the second plate.
In some embodiments, the connecting bolts are divided into a first bolt group and a second bolt group, the first bolt group and the second bolt group are arranged at intervals in the length direction of the first plate, and each of the first bolt group and the second bolt group comprises at least two connecting bolts which are distributed at intervals in the width direction of the first plate; the first plate and the through holes of the insulating piece are equal in number and correspond to the connecting bolts one by one, the threaded holes of the connecting plate and the connecting bolts are equal in number and correspond to each other one by one, and the connecting bolts are matched with the corresponding through holes and the threaded holes.
In some embodiments, the number of the connection bolts in the first bolt group is two, and the number of the connection bolts in the second bolt group is two.
In some embodiments, the yaw sensor includes an eddy current sensor having a probe facing the collar for measuring a relative distance of the collar and a surface thereof.
In some embodiments, the guide bearing balance measuring device further comprises a plurality of fixing bolts, and the bottom end of the tile frame is connected with the bottom wall of the oil basin through the plurality of fixing bolts.
The hydraulic generator comprises the oil basin and the guide bearing swing degree measuring device according to any one of the embodiments, wherein a through hole which extends vertically and penetrates through the top wall and the bottom wall of the oil basin is formed in the center of the oil basin, the oil basin is sleeved on the main shaft through the through hole, and the shaft section of the main shaft is positioned in the oil basin.
The technical advantages of the hydraulic generator according to the embodiment of the present utility model are the same as those of the guide bearing swing measuring device according to the above embodiment, and will not be described here again.
In some embodiments, the part of the top wall of the oil basin used for forming the through hole is provided with annular sealing teeth, the annular sealing teeth are sleeved on the main shaft, and the inner ring is pressed on the main shaft.
Drawings
Fig. 1 is a schematic side view of a guide bearing runout measuring device according to an embodiment of the present utility model.
Fig. 2 is a schematic top view of a guide bearing runout measuring device according to an embodiment of the present utility model.
Reference numerals: 1. a main shaft; 11. a shaft section; 2. a collar; 3. a tile rack; 4. a bracket; 41. a first plate; 42. a connecting bolt; 43. a second plate; 5. a yaw rate sensor; 6. a connecting plate; 7. an insulating member.
Detailed Description
Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
A guide bearing runout measuring device and a hydro-generator according to embodiments of the present utility model are described below with reference to fig. 1-2.
As shown in fig. 1, the guide bearing swing degree measuring device according to the embodiment of the utility model comprises a main shaft 1, a shaft collar 2, a tile frame 3, a bracket 4 and a swing degree sensor 5, wherein the main shaft 1 comprises a shaft section 11 arranged in an oil basin of a hydraulic generator, and the shaft collar 2 is arranged in the oil basin and is coaxially connected with the shaft section 11. The tile rack 3 is arranged in the oil basin. The bracket 4 is arranged in the oil basin, and the first end of the bracket 4 is connected with the tile bracket 3. A yaw sensor 5 is mounted at a second end of the bracket 4, the yaw sensor 5 being adjacent the collar 2 and adapted to measure the yaw of the collar 2.
According to the guide bearing swing degree measuring device provided by the embodiment of the utility model, the swing degree sensor 5 is arranged in the oil basin. Thus, when the spindle 1 rotates and drives the oil pan top wall to vibrate, the vibration of the oil pan top wall has limited effect on the balance sensor 5 provided in the oil pan, in other words, the position of the balance sensor 5 is not substantially affected by the vibration of the oil pan top wall. Thus, the degree of swaying of the collar 2 measured by the swaying sensor 5 is more accurate.
In the present embodiment, the main shaft 1 adjacent to the top wall of the oil pan is expanded by friction, but the expansion does not affect the shaft segment 11 in the oil pan, and thus the collar 2 in the oil pan. In other words, the diameters of the shaft section 11 and the collar 2 in the oil basin remain unchanged as the main shaft 1 rotates. Thereby, the measurement accuracy of the yaw rate sensor 5 is further improved.
It will be appreciated that the throw of the collar 2 may map to the throw of the spindle 1 and the throw of the spindle 1 may map to the throw of the guide bearing.
When the hydraulic generator is in operation, the working condition of the shaft collar 2 is good. The yaw rate sensor 5 can thus measure the yaw rate of the shaft collar 2 and can accurately reflect the yaw rate of the guide bearing.
In some embodiments, as shown in fig. 1, the guide bearing runout measuring device further includes a connection plate 6 and an insulating member 7, the connection plate 6 connects the first end of the bracket 4 and the tile bracket 3, and the first end of the bracket 4 is connected to the connection plate 6 through the insulating member 7.
Thereby, the insulator 7 blocks the current flow between the bracket 4 and the connection plate 6, preventing the current of the yaw sensor 5 from being conducted from the bracket 4 to the connection plate 6 and then from the connection plate 6 and the shoe rack 3 to the guide bearing shoe, thereby avoiding the burning of the guide bearing shoe due to the current.
In some embodiments, as shown in fig. 1, the insulating member 7 includes any one of an insulating rubber pad and an insulating resin plate.
Thereby, the effect of the insulation of the insulator 7 is ensured.
Preferably, the insulating member 7 comprises an insulating rubber pad.
In some embodiments, as shown in fig. 1, the bracket 4 includes a first plate 41, a connecting bolt 42 and a second plate 43, the plate surface of the first plate 41 is parallel to the horizontal direction, the connecting plate 6 is fixed at the top end of the tile frame 3, the insulating member 7 is stacked at the top end of the connecting plate 6, and the first end of the first plate 41 is stacked at the top end of the insulating member 7. The first plate 41 and the insulating member 7 are both provided with a via hole, the connecting plate 6 is provided with a screw hole, the via hole and the screw hole are both vertically extended and coaxial, the screw portion of the connecting bolt 42 is screwed to each other through the via hole and the screw hole, and the head of the connecting bolt 42 is stopped against the first end of the first plate 41. The second plate 43 extends vertically, and the bottom end of the second plate 43 is connected to the second end of the first plate 41, and the yaw sensor 5 is mounted to the top end of the second plate 43.
Thereby, the connection between the bracket 4, the insulating member 7, the connection plate 6 and the tile holder 3 is achieved. In addition, the connecting bolts 42 facilitate the disassembly and assembly among the bracket 4, the insulator 7 and the connecting plate 6.
It will be appreciated that the head of the connecting bolt 42 is located above the first plate 41.
Specifically, the connection plate 6 is welded to the top end of the tile rack 3.
For ease of understanding, arrow a in fig. 1 shows the up-down/vertical direction of the guide bearing runout measuring device.
In some embodiments, as shown in fig. 1 and 2, the connection bolts 42 are divided into a plurality of first bolt groups and second bolt groups, the first bolt groups and the second bolt groups being arranged at intervals in the length direction of the first plate 41, each of the first bolt groups and the second bolt groups including at least two connection bolts 42 arranged at intervals in the width direction of the first plate 41; the number of through holes of the first plate 41 and the insulating member 7 is equal to and corresponds to the number of connecting bolts 42 one by one, the number of threaded holes of the connecting plate 6 and the number of connecting bolts 42 are equal to and corresponds to one, and the connecting bolts 42 are fitted to the corresponding through holes and threaded holes.
Thereby, the plurality of connecting bolts 42 increases the firmness of the connection of the first plate 41, the insulating member 7 and the connecting plate 6, and ensures the reliability and stability of the connection of the three.
Specifically, at least two connecting bolts 42 in the first bolt group are equally spaced in the width direction of the first plate 41.
Specifically, at least two connecting bolts 42 in the second bolt group are equally spaced in the width direction of the first plate 41.
For ease of understanding, arrow B in fig. 2 shows the length direction of the first plate 41, and arrow C shows the width direction of the first plate 41.
In some embodiments, as shown in FIG. 2, there are two connecting bolts 42 in the first bolt set and two connecting bolts 42 in the second bolt set.
Thereby, the arrangement of the four connecting bolts 42 is more orderly and reasonable, and the connection stability of the bracket 4, the insulating member 7 and the connecting plate 6 is ensured.
Specifically, the spacing of any adjacent two of the connecting bolts 42 is equal.
In some embodiments, as shown in fig. 1, the yaw sensor 5 comprises an eddy current sensor having a probe facing the collar 2 for measuring the relative distance of the collar 2 and its surface.
Thus, the eddy current sensor measures the degree of oscillation of the collar 2 by the probe, thereby measuring the degree of oscillation of the guide bearing.
The relative distance between the probe and the collar 2 is linearly dependent on the output voltage of the eddy current sensor, according to the characteristics of the eddy current sensor. In practice, the output voltage of the eddy current sensor is maintained between 10V and 12V, so that the installation position of the eddy current sensor is selected to control the relative distance between the probe and the collar 2.
In some embodiments, as shown in fig. 1, the guide bearing runout measuring device further includes a plurality of fixing bolts, and the bottom end of the tile frame 3 is connected to the bottom wall of the oil basin through the plurality of fixing bolts.
Thereby, the connection of the tile holder 3 and the oil basin is realized by a plurality of fixing bolts.
Specifically, the plurality of fixing bolts are equally spaced in the circumferential direction of the oil pan. Thereby, the stability and the firmness of the connection of the tile rack 3 and the oil basin are improved.
The hydraulic generator according to the embodiment of the utility model comprises an oil basin and the guide bearing swing degree measuring device in any embodiment, wherein a through hole which extends vertically and penetrates through the top wall and the bottom wall of the oil basin is arranged in the center of the oil basin, the oil basin is sleeved on the main shaft 1 through the through hole, and the shaft section 11 of the main shaft 1 is positioned in the oil basin.
The technical advantages of the hydraulic generator according to the embodiment of the present utility model are the same as those of the guide bearing swing measuring device according to the above embodiment, and will not be described here again.
In some embodiments, the part of the top wall of the oil basin used for forming the through hole is provided with annular sealing teeth, the annular sealing teeth are sleeved on the main shaft 1, and the inner ring is pressed on the main shaft 1.
Thereby, the spindle 1 and the annular sealing teeth form a squeeze seal. When the main shaft 1 rotates, the annular seal teeth are not moved, so that friction is generated between the main shaft 1 and the annular seal teeth, and the part of the main shaft 1 adjacent to the annular seal teeth is heated and expanded, so that the diameter of the part is increased. Meanwhile, due to the friction, the main shaft 1 drives the top wall of the oil basin to vibrate through the annular sealing teeth.
Therefore, the implementation mode of the electric vortex sensor built in the oil basin avoids the influence of heating expansion of the part of the main shaft 1 adjacent to the annular sealing teeth and the influence of vibration of the top wall of the oil basin, and ensures the accuracy of the swing degree measurement of the guide bearing.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.
Claims (10)
1. A guide bearing throw measuring device, comprising:
the main shaft comprises a shaft section arranged in an oil basin of the hydraulic generator, and the shaft collar is arranged in the oil basin and is coaxially connected with the shaft section;
the tile rack is arranged in the oil basin;
the support is arranged in the oil basin, and the first end of the support is connected with the tile rack; and
and the swing degree sensor is arranged at the second end of the bracket, is adjacent to the shaft collar and is suitable for measuring the swing degree of the shaft collar.
2. The guide bearing runout measuring device of claim 1 further comprising a connecting plate and an insulator, the connecting plate connecting the first end of the bracket and the shoe, the first end of the bracket being connected to the connecting plate by the insulator.
3. The guide bearing runout measuring device according to claim 2, wherein the insulating member comprises any one of an insulating rubber pad and an insulating resin plate.
4. A guide bearing balance measurement device according to claim 2 or claim 3, wherein the bracket comprises:
the plate surface of the first plate is parallel to the horizontal direction, the connecting plate is fixedly arranged at the top end of the tile frame, the insulating piece is stacked at the top end of the connecting plate, and the first end of the first plate is stacked at the top end of the insulating piece;
the connecting bolt is provided with a through hole, the connecting plate is provided with a threaded hole, the through hole and the threaded hole extend vertically and are coaxial, the screw rod part of the connecting bolt is connected with the threaded hole through the through hole in a threaded manner, and the head of the connecting bolt is abutted against the first end of the first plate; and
and the second plate extends vertically, the bottom end of the second plate is connected with the second end of the first plate, and the swing degree sensor is mounted at the top end of the second plate.
5. The guide bearing runout measuring apparatus according to claim 4, wherein the connecting bolts are divided into a plurality of first bolt groups and second bolt groups, the first bolt groups and the second bolt groups being arranged at intervals in a length direction of the first plate, the first bolt groups and the second bolt groups each including at least two of the connecting bolts arranged at intervals in a width direction of the first plate; the first plate and the through holes of the insulating piece are equal in number and correspond to the connecting bolts one by one, the threaded holes of the connecting plate and the connecting bolts are equal in number and correspond to each other one by one, and the connecting bolts are matched with the corresponding through holes and the threaded holes.
6. The guide bearing runout measuring device of claim 5 wherein there are two of the connection bolts in the first set of bolts and two of the connection bolts in the second set of bolts.
7. The guide bearing runout measuring device of claim 1 wherein the runout sensor comprises an eddy current sensor having a probe facing the collar for measuring the relative distance of the collar and its surface.
8. The guide bearing runout measuring device of claim 1 further comprising a plurality of fixing bolts, wherein the bottom end of the shoe rack is connected to the bottom wall of the oil basin by a plurality of fixing bolts.
9. A hydraulic generator, characterized by comprising an oil basin and a guide bearing swing measurement device according to any one of claims 1-8, wherein a through hole extending vertically and penetrating through the top wall and the bottom wall of the oil basin is arranged in the center of the oil basin, the oil basin is sleeved on the main shaft through the through hole, and the shaft section of the main shaft is positioned in the oil basin.
10. The hydraulic generator of claim 9, wherein the portion of the oil basin top wall that is used to form the through hole is provided with annular sealing teeth that fit around the main shaft and the inner ring presses against the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320321844.0U CN220168064U (en) | 2023-02-24 | 2023-02-24 | Guide bearing swing degree measuring device and hydraulic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320321844.0U CN220168064U (en) | 2023-02-24 | 2023-02-24 | Guide bearing swing degree measuring device and hydraulic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168064U true CN220168064U (en) | 2023-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320321844.0U Active CN220168064U (en) | 2023-02-24 | 2023-02-24 | Guide bearing swing degree measuring device and hydraulic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168064U (en) |
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2023
- 2023-02-24 CN CN202320321844.0U patent/CN220168064U/en active Active
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