CN220959938U - Hole pitch measuring device of hydroelectric generating set - Google Patents
Hole pitch measuring device of hydroelectric generating set Download PDFInfo
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- CN220959938U CN220959938U CN202322691494.XU CN202322691494U CN220959938U CN 220959938 U CN220959938 U CN 220959938U CN 202322691494 U CN202322691494 U CN 202322691494U CN 220959938 U CN220959938 U CN 220959938U
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- 238000005259 measurement Methods 0.000 claims description 24
- 230000013011 mating Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The utility model discloses a hole pitch measuring device for a hydroelectric generating set, which comprises a first measuring rod, a second measuring rod and two mounting supports, wherein the first measuring rod and the second measuring rod extend along a first direction and are movably connected, at least one of the first measuring rod and the second measuring rod is provided with scales arranged along the first direction, the mounting supports extend along a second direction, one of the mounting supports is rotatably connected to one end of the first measuring rod far away from the second measuring rod, the other mounting support is rotatably connected to one end of the second measuring rod far away from the first measuring rod, and the first direction is orthogonal with the second direction. The hole distance measuring device for the hydroelectric generating set can enable an maintainer to acquire the distance data between the two pin holes in real time without repeatedly measuring by using the tape measure, and improves the maintenance efficiency of the hydroelectric generating set.
Description
Technical Field
The utility model relates to the technical field of overhauling of hydroelectric generating sets, in particular to a hole pitch measuring device for a hydroelectric generating set.
Background
In the hydroelectric generating set, the water guide mechanism can adjust the water flow circulation entering the rotating wheel according to the load change of the electric power system, thereby meeting the requirement of the water turbine on the water flow circulation before entering the rotating wheel so as to adapt to the requirement of the electric power system on the output of the set, when the rotating wheel stops working, the guide vane of the water guide mechanism is required to be closed to cut off the water flow,
In the maintenance process of the water guide mechanism, because the gap between the vertical surfaces of the guide vanes needs to be adjusted, the corners of the guide vanes can rotate, and then the distance between the control ring and the guide vane turning arms is overlarge, and the connecting rod for connecting the control ring and the guide vane turning arms cannot meet the installation requirement, so that maintenance personnel need to rotate the guide vanes again to reduce the distance between the control ring and the guide vane turning arms.
In the related art, in the process of rotating the guide vane, an maintainer usually utilizes a tape measure to constantly measure the distance between the control ring and the guide vane crank arm so as to determine that the rotation angle of the guide vane meets the requirement, the operation is complex, and the overhaul efficiency is influenced.
Disclosure of utility model
The utility model aims to solve the technical problems and overcomes the defects and shortcomings of the prior art, and provides a hole pitch measuring device for a hydroelectric generating set, which can enable an maintainer to acquire distance data between two pin holes in real time without repeatedly measuring by using a tape measure, thereby improving the maintenance efficiency of the hydroelectric generating set.
The hole pitch measuring device for the hydroelectric generating set comprises: a first measuring rod and a second measuring rod, wherein the first measuring rod and the second measuring rod extend along a first direction, the first measuring rod and the second measuring rod are movably connected, and at least one of the first measuring rod and the second measuring rod is provided with scales arranged along the first direction; the two mounting supports extend along the second direction, one of the mounting supports is rotatably connected with one end of the first measuring rod, which is far away from the second measuring rod, the other mounting support is rotatably connected with one end of the second measuring rod, which is far away from the first measuring rod, and the first direction is orthogonal with the second direction.
According to the hole distance measuring device for the hydroelectric generating set, the two mounting supports can be respectively fixed at the positions of the pin hole centers on the guide vane crank arms and the corresponding pin hole centers on the control ring, at the moment, the total length of the first measuring rod and the second measuring rod is the distance between the two pin holes, and the hole distance measuring device for the hydroelectric generating set can not interfere rotation of the guide vane when in use, so that a worker can continuously rotate the guide vane to adjust the distance between the pin hole on the guide vane crank arm and the corresponding pin hole on the control ring, after the total length of the first measuring rod and the second measuring rod is consistent with the length of the connecting rod, the device can be removed to replace the connecting rod, so that the problems of connecting rod installation, difficult rotation and the like are avoided, the water guide mechanism is ensured to normally run after maintenance is completed, the maintenance quality of the hydroelectric generating set is improved, meanwhile, in the hole distance measuring device for the hydroelectric generating set, the maintenance worker can acquire distance data between the two pin holes in real time without using a tape measure, the mounting difficulty of the connecting rod is simplified, and the efficiency of the hydroelectric generating set is improved.
In some embodiments, the first measuring rod has a scale disposed along the first direction, and the end of the second measuring rod facing the first measuring rod has a mating groove, and the first measuring rod is slidably fitted in the mating groove.
In some embodiments, the mounting support is provided with a ball head rod, the ball head rod extends along the second direction, one end of the first measuring rod and one end of the second measuring rod, which faces the mounting support, are provided with a ball head seat, one end of the ball head rod in the second direction is provided with a ball head, and the ball head is rotatably matched in the ball head seat.
In some embodiments, the other end of the ball stud in the second direction is provided with a positioning member, and the positioning member can fix the ball stud at a measuring point.
In some embodiments, the positioning member comprises a circular plate and a plurality of positioning posts, and the plurality of positioning posts are arranged on the outer wall of the circular plate at intervals along the circumferential direction of the circular plate.
In some embodiments, the positioning posts are telescopic rods, and a plurality of the positioning posts can be telescopic synchronously.
In some embodiments, the ball seat is connected to the first measuring rod and the second measuring rod through an adapter rod, respectively.
In some embodiments, the adapter rod is provided with threaded rods at two ends of the first direction, the first measuring rod, the second measuring rod and the ball seat are provided with threaded holes at one ends facing the connecting rod, and the threaded rods are matched in the threaded holes.
In some embodiments, the hole distance measuring device for the hydro-generator set further comprises a locking piece, and the locking piece can lock the first measuring rod in the matching groove after the first measuring rod moves.
Drawings
Fig. 1 is a schematic structural view of a hole pitch measurement device for a hydro-generator set according to an embodiment of the utility model.
Fig. 2 is an exploded view of a hole spacing measurement device for a hydro-generator set according to an embodiment of the utility model.
Reference numerals:
1. A first measuring rod; 11. a scale; 2. a second measuring rod; 21. a mating groove; 3. a mounting support; 31. a ball head rod; 32. a ball seat; 33. a positioning piece; 331. a circular plate; 332. positioning columns; 4. a transfer rod; 41. a threaded rod.
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.
As shown in fig. 1 and 2, the hole pitch measuring device for a hydroelectric generating set according to the embodiment of the present utility model includes a first measuring rod 1, a second measuring rod 2 and two mounting brackets 3.
Specifically, the first measuring rod 1 and the second measuring rod 2 both extend in a first direction (left-right direction as shown in fig. 2), and the first measuring rod 1 and the second measuring rod 2 are movably connected, at least one of the first measuring rod 1 and the second measuring rod 2 has a scale 11 provided in the first direction, the mount 3 extends in a second direction (up-down direction as shown in fig. 2), and one of the mount 3 is rotatably connected at an end of the first measuring rod 1 away from the second measuring rod 2, and the other mount 3 is rotatably connected at an end of the second measuring rod 2 away from the first measuring rod 1, the first direction being orthogonal to the second direction.
It should be noted that, in the water guide mechanism of the hydroelectric generating set, the pin holes for connecting rod installation are arranged on the guide vane crank arm and the control ring, when the guide vane rotates, the pin holes on the guide vane crank arm and the corresponding pin holes on the control ring can simultaneously generate relative distance and relative azimuth change, thereby increasing the difficulty of distance measurement of the two, in the hole distance measuring device for the hydroelectric generating set, two mounting supports 3 can be respectively fixed at the circle centers of the two pin holes, at the moment, the total length of a first measuring rod 1 and a second measuring rod 2 is the distance of the two pin holes, if the pin holes on the guide vane crank arm and the corresponding pin holes on the control ring generate relative azimuth change, the first measuring rod 1 and the second measuring rod 2 can respectively rotate relative mounting supports 3, so that a worker can continuously rotate the guide vane to adjust the corresponding pin holes on the guide vane crank arm and the control ring, and then the corresponding pin holes of the guide vane crank arm can be replaced by the first measuring rod 2, the quality of the hydroelectric generating set can be prevented from being replaced by the normal maintenance of the corresponding pin holes after the guide vane crank arm and the control ring are rotated, and the quality of the water turbine set is guaranteed.
It can be understood that in the hole distance measuring device for the hydroelectric generating set, an maintainer can acquire the distance data between the two pin holes in real time without repeatedly measuring by using a tape measure, so that the mounting difficulty of the connecting rod is simplified, and the overhaul efficiency of the hydroelectric generating set is improved.
According to the hole distance measuring device for the hydroelectric generating set, the two mounting supports can be respectively fixed at the positions of the pin hole centers on the guide vane crank arms and the corresponding pin hole centers on the control ring, at the moment, the total length of the first measuring rod and the second measuring rod is the distance between the two pin holes, and the hole distance measuring device for the hydroelectric generating set can not interfere rotation of the guide vane when in use, so that a worker can continuously rotate the guide vane to adjust the distance between the pin hole on the guide vane crank arm and the corresponding pin hole on the control ring, after the total length of the first measuring rod and the second measuring rod is consistent with the length of the connecting rod, the device can be removed to replace the connecting rod, so that the problems of connecting rod installation, difficult rotation and the like are avoided, the water guide mechanism is ensured to normally run after maintenance is completed, the maintenance quality of the hydroelectric generating set is improved, meanwhile, in the hole distance measuring device for the hydroelectric generating set, the maintenance worker can acquire distance data between the two pin holes in real time without using a tape measure, the mounting difficulty of the connecting rod is simplified, and the efficiency of the hydroelectric generating set is improved.
Further, as shown in fig. 1 and 2, the first measuring rod 1 has a scale 11 arranged in the first direction, the end of the second measuring rod 2 facing the first measuring rod 1 has a fitting groove 21, and the first measuring rod 1 is slidably fitted in the fitting groove 21.
It should be noted that, the scale 11 of the first measuring rod 1 should be gradually increased along the direction close to the second measuring rod 2, therefore, the scale 11 reading displayed outside the matching groove 21 by the first measuring rod 1 is the extending length L1 of the first measuring rod 1, the sum of the length L1 and the total length L2 of the second measuring rod 2 is the distance between the pin hole on the guide vane crank arm and the corresponding pin hole on the control ring, so that the maintainer can obtain the distance data of the two pin holes in time according to the reading of the first measuring rod 1, the maintenance efficiency of the hydroelectric generating set is improved, in some embodiments, the side wall of the matching groove 21 is provided with an opening, and the opening is provided with a dividing ruler along the first direction, thereby improving the measurement accuracy of the device.
It will be appreciated that the first measuring rod 1 mounted in the mating groove 21 is more stable, improving the durability of the device.
Further, as shown in fig. 1 and 2, the mounting support 3 is provided with a ball head rod 31, the ball head rod 31 extends along the second direction, one end of the first measuring rod 1 and the second measuring rod 2 facing the mounting support 3 is provided with a ball head seat 32, one end of the ball head rod 31 in the second direction is provided with a ball head, and the ball head is rotatably matched in the ball head seat 32.
In other words, the first measuring rod 1, the second measuring rod 2 and the two mounting brackets are respectively and rotatably connected through the cooperation of the ball head rod 31 and the ball head seat 32, the ball head is simple in structure and convenient to manufacture and detach, and the applicability of the device is improved.
It will be appreciated that the manner in which the mounting bracket is rotatably connected to the first measuring stick 1 and the second measuring stick is not limited to the above one, for example, the mounting bracket may also be connected to the first measuring stick 1 and the second measuring stick 2 via bearings, respectively, so as to promote the rotational smoothness of the first measuring stick 1 and the second measuring stick 2 relative to the mounting bracket.
Further, as shown in fig. 1 and 2, the other end of the ball stud 31 in the second direction is provided with a positioning member 33, and the positioning member 33 can fix the ball stud 31 at the measuring point.
It should be noted that, when measuring the distance between the pinhole on the stator turning arm and the pinhole that corresponds on the control ring, first installing support and second installing support need fix respectively in the centre of a circle department of two pinholes, and locating piece 33 can ensure that the installing support stably locates the centre of a circle department of pinhole, avoids first installing support and second installing support to rock in the measurement process, influences this device distance measurement's accuracy nature.
Further, the positioning member 33 includes a circular plate 331 and a plurality of positioning posts 332, and the plurality of positioning posts 332 are disposed on the outer wall of the circular plate 331 at intervals along the circumferential direction of the circular plate 331.
It can be understood that the circular plate 331 can be clamped in the pin hole by the plurality of positioning columns 332 through abutting with the wall of the pin hole, and the same length of the positioning columns 332 can ensure that the circular plate 331 is concentric with the pin hole, so that the ball head rod 31 is fixed at the center of the pin hole, and the accuracy of the distance measurement of the device is improved. In some embodiments, the number of the positioning posts 332 is 4-6, and the plurality of positioning posts 332 are symmetrically arranged along the circumference of the circular plate 331, thereby avoiding the problem of stress concentration of the circular plate 331.
Further, as shown in fig. 1 and 2, the positioning posts 332 are telescopic rods, and the positioning posts 332 can be synchronously telescopic.
It can be appreciated that the positioning columns 332 with variable lengths can enable the circular plate 331 to be installed in the pin holes with different apertures, so that the applicability of the device is improved, and the installation process of the positioning columns 332 in the pin holes is simplified by the plurality of positioning columns 332 which stretch out and draw back synchronously, so that the overhaul efficiency of the hydroelectric generating set is improved.
Further, as shown in fig. 1 and 2, the ball seat 32 is connected to the first measuring stick 1 and the second measuring stick 2 through the adapter stick 4, respectively.
It can be appreciated that the adapter rod 4 facilitates the quick dismantling of the device by an maintainer after the guide vane rotation adjustment is completed, so as to quickly replace the connecting rod for installation.
Further, as shown in fig. 1 and 2, the two ends of the adapter rod 4 in the first direction are provided with threaded rods 41, and the first measuring rod 1, the second measuring rod 2 and the ball seat 32 are provided with threaded holes at one end facing the connecting rod, and the threaded rods 41 are matched in the threaded holes.
In other words, the adapter rod 4 is connected to the first measuring rod 1, the second measuring rod 2 and the ball socket 32 by means of threaded connection, respectively, thereby improving the tightness of the assembly of the first measuring rod 1 and the second measuring rod 2 with the mounting support 3.
When the hole pitch measuring device for the hydroelectric generating set is dismounted, firstly, the mounting bracket on the turning arm side of the guide vane is dismounted, then the first measuring rod 1 and the second measuring rod 2 are dismounted in sequence, and finally, the mounting bracket on the guide control ring side is dismounted, so that the guide vane is prevented from rotating again due to excessive disturbance of the guide vane in the dismounting process, and the overhaul efficiency is improved.
Further, as shown in fig. 1 and 2, the hole distance measuring device for the hydro-generator set further includes a locking member, which locks the first measuring rod 1 in the mating groove 21 after the first measuring rod 1 is moved.
In other words, the locking piece can maintain the total length L of the first measuring rod 1 and the second measuring rod 2 unchanged, so that the distance between the pin hole on the guide vane crank arm and the corresponding pin hole on the control ring is kept unchanged, the distance between the two pin holes is prevented from being misplaced again due to external disturbance after the requirement is met, and the applicability of the device is improved. In some embodiments, the locking member is a compression screw, and after the extension length L 1 of the first measuring rod 1 is determined, the compression screw passes through the outer wall of the mating groove 21 to tightly press against the first measuring rod 1, so as to prevent the first measuring rod 1 from moving randomly.
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 embodiments of the present utility model have been shown and described above, it will 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 may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (9)
1. A hole pitch measurement device for a hydro-generator set, comprising:
A first measuring rod and a second measuring rod, wherein the first measuring rod and the second measuring rod extend along a first direction, the first measuring rod and the second measuring rod are movably connected, and at least one of the first measuring rod and the second measuring rod is provided with scales arranged along the first direction;
The two mounting supports extend along the second direction, one of the mounting supports is rotatably connected with one end of the first measuring rod, which is far away from the second measuring rod, the other mounting support is rotatably connected with one end of the second measuring rod, which is far away from the first measuring rod, and the first direction is orthogonal with the second direction.
2. The pitch measurement device for a hydro-generator unit as defined in claim 1 wherein the first measurement bar has graduations disposed along the first direction, the second measurement bar having a mating groove at an end thereof facing the first measurement bar, the first measurement bar being slip-fitted within the mating groove.
3. The hole pitch measurement device for a hydro-generator unit according to claim 1, wherein the mounting support is provided with a ball head rod extending in the second direction, one end of the first and second measuring rods facing the mounting support is provided with a ball head seat, one end of the ball head rod in the second direction is provided with a ball head, and the ball head is rotatably fitted in the ball head seat.
4. A hole pitch measurement apparatus for a hydro-generator unit as defined in claim 3, wherein the other end of the ball stud in the second direction is provided with a positioning member which can fix the ball stud at a measurement point.
5. The hole pitch measurement apparatus for a hydro-generator unit according to claim 4, wherein the positioning member comprises a circular plate and a plurality of positioning columns, the plurality of positioning columns being disposed on an outer wall of the circular plate at intervals along a circumferential direction of the circular plate.
6. The hole pitch measurement apparatus for a hydro-generator unit as defined in claim 5, wherein the positioning column is a telescopic rod, and wherein a plurality of the positioning columns are synchronously telescopic.
7. A pitch measurement device for a hydro-generator unit as defined in claim 3 wherein the ball seat is connected to the first and second measurement bars by a transfer bar, respectively.
8. The hole pitch measurement device for a hydro-generator unit according to claim 7, wherein the adapter rod is provided with threaded rods at two ends of the first direction, the first measuring rod, the second measuring rod and the ball seat are provided with threaded holes at one end facing the connecting rod, and the threaded rods are matched in the threaded holes.
9. The hole pitch measurement apparatus for a hydro-generator unit as defined in claim 2, further comprising a locking member that locks the first measurement bar within the mating groove after the first measurement bar has been moved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322691494.XU CN220959938U (en) | 2023-10-07 | 2023-10-07 | Hole pitch measuring device of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322691494.XU CN220959938U (en) | 2023-10-07 | 2023-10-07 | Hole pitch measuring device of hydroelectric generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220959938U true CN220959938U (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322691494.XU Active CN220959938U (en) | 2023-10-07 | 2023-10-07 | Hole pitch measuring device of hydroelectric generating set |
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| Country | Link |
|---|---|
| CN (1) | CN220959938U (en) |
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2023
- 2023-10-07 CN CN202322691494.XU patent/CN220959938U/en active Active
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