CN211315524U - Basic natural frequency adjusting device of rotating equipment - Google Patents
Basic natural frequency adjusting device of rotating equipment Download PDFInfo
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- CN211315524U CN211315524U CN201921429826.4U CN201921429826U CN211315524U CN 211315524 U CN211315524 U CN 211315524U CN 201921429826 U CN201921429826 U CN 201921429826U CN 211315524 U CN211315524 U CN 211315524U
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- screw jack
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- natural frequency
- equipment
- frequency adjusting
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Abstract
The utility model belongs to the technical field of the large-scale rotating equipment vibration of nuclear power station administers the engineering, concretely relates to rotating equipment basis natural frequency adjusting device, include: the device comprises an equipment foundation base, a plurality of rib plates, a screw jack, a screw rod and a nut B; the screw jack includes: the screw jack male piece is connected with the screw jack female piece through the nut A in a threaded manner; the gusset passes through nut B threaded connection with the lead screw and forms frame construction and places in equipment foundation base outsidely, screw jack axial is packed into inside the equipment foundation base, the utility model discloses a mode adjustment basis rigidity that interior propping, external pressure were carried out to current rotation equipment foundation improves natural frequency, solves the technical problem who keeps away from the resonance region.
Description
Technical Field
The utility model belongs to the technical field of the large-scale rotating equipment vibration of nuclear power station administers the engineering, concretely relates to rotating equipment basis natural frequency adjusting device.
Background
When large-scale rotating equipment runs, the vibration level of the large-scale rotating equipment is an important technical index for verifying the running state of the equipment, and if the vibration is large, the service life of the equipment can be shortened, so that the equipment is damaged to different degrees, and the safe and stable running of the corresponding equipment and a system is directly influenced. Therefore, it is desirable to design a basic natural frequency adjusting device of a rotating device and an adjusting method thereof to improve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of above-mentioned prior art provides a rotating equipment basis natural frequency adjusting device and adjustment method, through carrying out the mode adjustment basis rigidity of internal stay, external pressure to current rotating equipment basis, improves natural frequency to solve rotating equipment and keep away from the technical problem in resonance region at the operation in-process.
The technical scheme of the utility model is that:
a basic natural frequency adjusting device of a rotating device, comprising: the device comprises an equipment foundation base, a plurality of rib plates, a screw jack, a screw rod and a nut B; each screw jack comprises: the screw jack male piece is connected with the screw jack female piece through the nut A in a threaded manner; the rib plates are connected with the screw rod through the nuts B to form a frame structure and are placed outside the equipment foundation base, and the screw jack is axially installed inside the equipment foundation base.
The screw jack female piece is axially provided with a threaded hole; the outer surface of the screw jack female member in the radial direction is processed with a hexagon and is used for fastening a spanner; the screw jack male part is axially provided with a screw rod which is used for being in threaded connection with the screw jack female part; the outer surface of the screw jack male part in the radial direction is processed with a hexagon and is used for fastening a wrench.
Two through holes are formed in two ends of each rib plate and used for a screw rod to penetrate through.
The left end face of a screw jack female part of the screw jack is tightly attached to the left side face inside the equipment foundation base, and the right end face of a screw jack male part is tightly attached to the right side face inside the equipment foundation; the screw jack is fastened by fastening two nuts A.
The number of the rib plates and the number of the screw rods are both one, and the number of the screw jacks is one.
The number of the nuts A on each screw jack is two.
The utility model discloses following beneficial effect has:
[1] the adjusting device for the natural frequency of the rotating equipment foundation has simple structure and convenient implementation;
[2] the utility model discloses a basic natural frequency adjusting device of rotating equipment can make rotating equipment effectively keep away from the resonance region.
Drawings
Fig. 1 is a schematic structural view of a basic natural frequency adjusting device of a rotating device designed by the present invention;
FIG. 2 is a schematic view of a screw jack structure in a basic natural frequency adjusting device of a rotating device designed by the present invention
Fig. 3 is a schematic structural diagram of a reinforcing frame in a basic natural frequency adjusting device of a rotating device designed by the present invention;
the screw jack comprises a screw jack female part 1, a screw jack male part 2, a nut A3, a rib plate 4, a screw rod 5, a nut B6 and an equipment foundation base 7.
Detailed Description
The technology of the present invention is further described below:
as shown in fig. 1 to 3, a basic natural frequency adjusting apparatus for a rotating device includes: the device comprises an equipment foundation base 7, a plurality of rib plates 4, a screw jack, a screw rod 5 and a nut B6; each screw jack comprises: the screw jack comprises a screw jack female part 1, a screw jack male part 2 and a plurality of nuts A3, wherein the screw jack female part 1 and the screw jack male part 2 are in threaded connection through the nuts A3; the rib plates 4 are in threaded connection with the screw rod 5 through nuts B6 to form a frame structure and are placed outside the equipment base 7, and the screw jack is axially installed inside the equipment base 7.
The screw jack female part 1 is axially provided with a threaded hole; the outer surface of the screw jack female part 1 in the radial direction is processed with a hexagon and is used for fastening a spanner; the screw jack male part 2 is axially provided with a screw rod and is used for being in threaded connection with the screw jack female part 1; the outer surface of the screw jack male part 2 in the radial direction is processed with a hexagon and is used for fastening a wrench.
Two through holes are formed in two ends of each rib plate 4 and used for the lead screw 5 to penetrate through.
The left end face of a screw jack female part 1 of the screw jack is tightly attached to the left side face inside an equipment foundation base 7, and the right end face of a screw jack male part 2 is tightly attached to the right side face inside the equipment foundation base 7; the screw jack is tightened by tightening two nuts a 3.
The number of the rib plates 4 and the number of the screw rods 5 are 2, and the number of the screw jacks is 4.
The number of nuts a3 on each jack screw is two.
An adjusting method of the basic natural frequency adjusting device of the rotating equipment comprises the following steps:
the method comprises the following steps: screwing the two nuts A3 into the screw of the screw jack male part 2; screwing the screw rod of the screw jack male part 2 into the threaded hole of the screw jack female part 1; axially installing the assembled screw jack into the equipment foundation 7; screwing the screw jack until the left end face of the screw jack female part 1 is tightly attached to the left side face inside the equipment foundation base 7, and the right end face of the screw jack male part 2 is tightly attached to the right side face inside the equipment foundation base 7; tightening the two nuts a3 tightens the screw jack.
Step two: one rib plate 4 is arranged outside the left side of the equipment foundation base 7, so that the right end face of the rib plate 4 is tightly attached to the left end face of the outside of the equipment foundation base 7; the other rib plate 4 is arranged outside the right side of the equipment foundation base 7, so that the left end face of the rib plate 4 is tightly attached to the right end face of the outside of the equipment foundation base 7; respectively penetrating the two screw rods 5 into the through holes of the two rib plates 4; the screw is screwed on the screw rod 5 through a nut B6.
Step three: the equipment foundation base 7 is internally supported through the screw jack, and a frame structure formed by the threaded connection of the rib plate 4 and the screw rod 5 is externally pressed and fastened, so that the rigidity of the equipment foundation base 7 is effectively adjusted, the natural frequency is improved, and the resonance area is effectively kept away.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art. The present invention can adopt the prior art for the content which is not described in detail in the present invention.
Claims (6)
1. A basic natural frequency adjusting device for a rotating device, comprising: the device comprises an equipment foundation base (7), a plurality of rib plates (4), a screw jack, a screw rod (5) and a nut B (6); the screw jack includes: the screw jack comprises a screw jack female part (1), a screw jack male part (2) and a plurality of nuts A (3), wherein the screw jack female part (1) and the screw jack male part (2) are in threaded connection through the nuts A (3); the rib plates (4) are in threaded connection with the screw rod (5) through nuts B (6) to form a frame structure and are placed outside the equipment base (7), and the screw jack is axially installed inside the equipment base (7).
2. The basic natural frequency adjusting device of the rotating equipment as claimed in claim 1, wherein the screw jack female member (1) is axially provided with a threaded hole; the outer surface of the screw jack female part (1) in the radial direction is processed with a hexagon and is used for fastening a spanner; the screw jack male part (2) is axially provided with a screw rod and is used for being in threaded connection with the screw jack female part (1); the outer surface of the screw jack male part (2) in the radial direction is processed with a hexagon and is used for fastening a wrench.
3. A fundamental natural frequency adjusting apparatus for a rotary device as claimed in claim 2, wherein: two through holes are formed in two ends of each rib plate (4) and used for a screw rod (5) to penetrate through.
4. A fundamental natural frequency adjusting apparatus for a rotating device according to claim 3, wherein: the left end face of a screw jack female part (1) of the screw jack is tightly attached to the left side face inside an equipment foundation base (7), and the right end face of a screw jack male part (2) is tightly attached to the right side face inside the equipment foundation base (7); the screw jack is fastened by fastening two nuts A (3).
5. A fundamental natural frequency adjusting apparatus for a rotary device as claimed in claim 4, wherein: the number of the rib plates (4) and the number of the screw rods (5) are 2, and the number of the screw jacks is 4.
6. A fundamental natural frequency adjusting apparatus for a rotary device as claimed in claim 5, wherein: the number of the nuts A (3) on each screw jack is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429826.4U CN211315524U (en) | 2019-08-30 | 2019-08-30 | Basic natural frequency adjusting device of rotating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921429826.4U CN211315524U (en) | 2019-08-30 | 2019-08-30 | Basic natural frequency adjusting device of rotating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211315524U true CN211315524U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921429826.4U Active CN211315524U (en) | 2019-08-30 | 2019-08-30 | Basic natural frequency adjusting device of rotating equipment |
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| CN (1) | CN211315524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486578A (en) * | 2019-08-30 | 2019-11-22 | 江苏核电有限公司 | A kind of rotating machinery natural frequency of a foundation adjustment device and its method of adjustment |
-
2019
- 2019-08-30 CN CN201921429826.4U patent/CN211315524U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486578A (en) * | 2019-08-30 | 2019-11-22 | 江苏核电有限公司 | A kind of rotating machinery natural frequency of a foundation adjustment device and its method of adjustment |
| CN110486578B (en) * | 2019-08-30 | 2024-06-07 | 江苏核电有限公司 | Rotating equipment foundation natural frequency adjusting device and adjusting method thereof |
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