CN110486578A - A kind of rotating machinery natural frequency of a foundation adjustment device and its method of adjustment - Google Patents
A kind of rotating machinery natural frequency of a foundation adjustment device and its method of adjustment Download PDFInfo
- Publication number
- CN110486578A CN110486578A CN201910813759.4A CN201910813759A CN110486578A CN 110486578 A CN110486578 A CN 110486578A CN 201910813759 A CN201910813759 A CN 201910813759A CN 110486578 A CN110486578 A CN 110486578A
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- China
- Prior art keywords
- screw jack
- screw
- nut
- jack
- rotating machinery
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- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 244000309464 bull Species 0.000 claims abstract description 23
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M5/00—Engine beds, i.e. means for supporting engines or machines on foundations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention belongs to nuclear power station large size rotating machinery Vibration Treatment field of engineering technology, and in particular to a kind of rotating machinery natural frequency of a foundation adjustment device and its method of adjustment, comprising: Equipment Foundations pedestal, several gussets, screw jack, screw rod and nut B；Each screw jack includes: a screw jack parent part, a screw jack bull and several nut A, and the screw jack parent part and screw jack bull are threadedly coupled by nut A；The gusset is threadedly coupled to form frame structure and be placed on Equipment Foundations base exterior by nut B with screw rod, inside the screw jack axial direction load facility sole plate, the present invention adjusts soil rigidity by way of carrying out inner support, external pressure to existing rotating machinery basis, the technical issues of improving intrinsic frequency, solving far from resonance region.
Description
Technical field
The invention belongs to nuclear power station large size rotating machinery Vibration Treatment field of engineering technology, and in particular to a kind of rotating machinery
The natural frequency of a foundation adjusts device and its method of adjustment.
Background technique
In the process of running, level of vibration is the important technology index for verifying equipment running status to large-scale rotating machinery,
If vibrating bigger than normal, it will the service life for reducing equipment causes equipment by different degrees of damage, directly influences and accordingly sets
Standby and system safe and stable operation.Therefore, it is necessary to design a kind of rotating machinery natural frequency of a foundation adjustment device and its adjustment
Method, to improve above-mentioned technical problem.
Summary of the invention
Object of the present invention is to provide a kind of rotating machinery natural frequency of a foundation adjustment dress in view of the above shortcomings of the prior art
It sets and its method of adjustment, soil rigidity is adjusted by way of carrying out inner support, external pressure to existing rotating machinery basis, improve intrinsic
Frequency, thus solve rotating machinery in the process of running far from resonance region the technical issues of.
The technical scheme is that
A kind of rotating machinery natural frequency of a foundation adjustment device, comprising: Equipment Foundations pedestal, several gussets, spiral thousand
Jin top, screw rod and nut B；Each screw jack includes: a screw jack parent part, a screw jack public affairs
Part and several nut A, the screw jack parent part and screw jack bull are threadedly coupled by nut A；The gusset with
Screw rod is threadedly coupled to form frame structure and be placed on Equipment Foundations base exterior by nut B, and the screw jack is axial
Inside load facility sole plate.
The screw jack parent part is axially provided with threaded hole；Screw jack parent part radially-outer surface is machined with six sides,
It is fastened for spanner；Screw jack bull is axially provided with screw rod, for being threadedly coupled with screw jack parent part；Spiral thousand
Jin top bull radially-outer surface is machined with six sides, fastens for spanner.
The both ends of each gusset are opened there are two through-hole, are penetrated for screw rod.
The screw jack parent part left side of the screw jack is adjacent to Equipment Foundations chassis interior left side, spiral
Jack bull right side and Equipment Foundations inner right side face paste are tight；Screw jack is carried out by two nut A of fastening tight
Gu.
The gusset and screw rod quantity are that screw jack is that quantity is root.
Nut A quantity in each screw jack is two.
A kind of method of adjustment of rotating machinery natural frequency of a foundation adjustment device as described above, includes the following steps:
Step 1: two nut A are screwed on the screw rod of screw jack bull；The screw rod of screw jack bull is revolved
In the threaded hole for entering screw jack parent part；By assembled screw jack axial direction load facility basic internal；Tighten spiral
Jack to screw jack parent part left side and Equipment Foundations chassis interior left side is adjacent to, screw jack bull right side
It is adjacent to Equipment Foundations chassis interior right side；Two nut A are fastened to fasten screw jack.
Step 2: by one of gusset load facility sole plate left hand external, make gusset right side and Equipment Foundations
Base exterior left side is adjacent to；Another gusset load facility sole plate right hand external, makes gusset left side and Equipment Foundations
Base exterior right side is adjacent to；Two screw rods are respectively penetrated in the through-hole of two gussets；It is screwed on screw rod and is twisted by nut B
Tightly.
Step 3: Equipment Foundations pedestal carries out inner support in inside by screw jack, is connected by gusset and wire rod thread
It connects the frame structure to be formed and carries out external pressure fastening in outside, effectively adjust the rigidity of Equipment Foundations pedestal, improve intrinsic frequency, from
And effectively far from resonance region.
The invention has the following advantages:
[1], a kind of rotating machinery natural frequency of a foundation of the invention adjustment apparatus structure is simple, convenient to carry out；
[2], a kind of rotating machinery natural frequency of a foundation of the invention adjustment device can make rotating machinery effectively far from altogether
Shake area.
Detailed description of the invention
Fig. 1 is a kind of rotating machinery natural frequency of a foundation adjustment apparatus structure schematic diagram that the present invention designs；
Fig. 2 is that a kind of rotating machinery natural frequency of a foundation that the present invention designs adjusts screw jack structural representation in device
Figure
Fig. 3 is the structural representation that a kind of rotating machinery natural frequency of a foundation that the present invention designs adjusts reinforced frame in device
Figure；
Wherein: 1. screw jack parent parts, 2. screw jack bulls, 3. nut A, 4. gussets, 5. screw rods, 6. nut B,
7. Equipment Foundations pedestal.
Specific embodiment
The technology of the present invention is described further below:
As shown in Figures 1 to 3, a kind of rotating machinery natural frequency of a foundation adjusts device, comprising: Equipment Foundations pedestal 7, several
A gusset 4, screw jack, screw rod 5 and nut B 6；Each screw jack includes: a screw jack parent part
1, a screw jack bull 2 and several nut A3, the screw jack parent part 1 and screw jack bull 2 pass through spiral shell
Female A3 is threadedly coupled；The gusset 4 is threadedly coupled to form frame structure and be placed on Equipment Foundations by nut B 6 with screw rod 5
Outside pedestal 7, inside the screw jack axial direction load facility sole plate 7.
The screw jack parent part 1 is axial to be provided with threaded hole；1 radially-outer surface of screw jack parent part is machined with six
Side is fastened for spanner；Screw jack bull 2 is axial to be provided with screw rod, for being threadedly coupled with screw jack parent part 1；
2 radially-outer surface of screw jack bull is machined with six sides, fastens for spanner.
The both ends of each gusset 4 are opened there are two through-hole, are penetrated for screw rod 5.
1 left side of screw jack parent part of the screw jack and 7 inside left face paste of Equipment Foundations pedestal are tight, spiral shell
It revolves 2 right side of jack bull and 7 inner right side face paste of Equipment Foundations is tight；By fastening two nut A3 to screw jack into
Row fastening.
The gusset 4 and 5 quantity of screw rod are 2, and screw jack is that quantity is 4.
Nut A3 quantity in each screw jack is two.
A kind of method of adjustment of rotating machinery natural frequency of a foundation adjustment device as described above, includes the following steps:
Step 1: two nut A 3 are screwed on the screw rod of screw jack bull 2；By the spiral shell of screw jack bull 2
Bar screws in the threaded hole of screw jack parent part 1；Inside assembled screw jack axial direction load facility basis 7；It twists
Tight screw jack is tight to 1 left side of screw jack parent part and 7 inside left face paste of Equipment Foundations pedestal, and screw jack is public
2 right side of part and 7 inner right side face paste of Equipment Foundations pedestal are tight；Two nut A3 are fastened to fasten screw jack.
Step 2: by one of 4 load facility sole plate of gusset, 7 left hand external, make 4 right side of gusset and equipment base
7 outside left side of plinth pedestal is adjacent to；Another 4 load facility sole plate of gusset, 7 right hand external, makes 4 left side of gusset and sets
Standby 7 outside right side of sole plate is adjacent to；Two screw rods 5 are respectively penetrated in the through-hole of two gussets 4；It is screwed in by nut B6
It is tightened on screw rod 5.
Step 3: Equipment Foundations pedestal 7 carries out inner support in inside by screw jack, passes through gusset 4 and 5 screw thread of screw rod
It connects the frame structure formed and carries out external pressure fastening in outside, effectively adjust the rigidity of Equipment Foundations pedestal 7, improve intrinsic frequency
Rate, thus effectively far from resonance region.
The present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-described embodiments, at this
Field those of ordinary skill within the scope of knowledge, can also make various changes without departing from the purpose of the present invention
Change.The content being not described in detail in the present invention can use the prior art.
Claims (7)
1. a kind of rotating machinery natural frequency of a foundation adjusts device characterized by comprising Equipment Foundations pedestal (7), several
Gusset (4), screw jack, screw rod (5) and nut B (6)；Each screw jack includes: a screw jack mother
Part (1), a screw jack bull (2) and several nut A (3), the screw jack parent part (1) and screw jack are public
Part (2) is threadedly coupled by nut A (3)；The gusset (4) is threadedly coupled to form frame knot with screw rod (5) by nut B (6)
Structure is simultaneously placed on Equipment Foundations pedestal (7) outside, and the screw jack axial direction load facility sole plate (7) is internal.
2. a kind of rotating machinery natural frequency of a foundation as described in claim 1 adjusts device, it is characterised in that: the spiral thousand
Jin top parent part (1) is axially provided with threaded hole；Screw jack parent part (1) radially-outer surface is machined with six sides, fastens for spanner；
Screw jack bull (2) is axially provided with screw rod, for being threadedly coupled with screw jack parent part (1)；Screw jack is public
Part (2) radially-outer surface is machined with six sides, fastens for spanner.
3. a kind of rotating machinery natural frequency of a foundation as claimed in claim 2 adjusts device, it is characterised in that: each muscle
The both ends of plate (4) are opened there are two through-hole, are penetrated for screw rod (5).
4. a kind of rotating machinery natural frequency of a foundation as claimed in claim 3 adjusts device, it is characterised in that: the spiral thousand
Screw jack parent part (1) left side on jin top and Equipment Foundations pedestal (7) inside left face paste are tight, screw jack bull
(2) right side and 7 inner right side face paste of Equipment Foundations are tight；Screw jack is fastened by fastening two nut A (3).
5. a kind of rotating machinery natural frequency of a foundation as claimed in claim 4 adjusts device, it is characterised in that: the gusset
(4) and screw rod (5) quantity is 2, and screw jack is that quantity is 4.
6. a kind of rotating machinery natural frequency of a foundation as claimed in claim 5 adjusts device, it is characterised in that: each spiral shell
Revolving nut A (3) quantity on jack is two.
7. the method for adjustment of any rotating machinery natural frequency of a foundation adjustment device in a kind of claim 1 to 6 as above,
It is characterized by comprising following steps:
Step 1: two nut A (3) are screwed on the screw rod of screw jack bull (2)；By screw jack bull (2)
Screw rod screws in the threaded hole of screw jack parent part (1)；It will be in assembled screw jack axial direction load facility basic (7)
Portion；It is tight to screw jack parent part (1) left side and Equipment Foundations pedestal (7) inside left face paste to tighten screw jack, spiral shell
It revolves jack bull (2) right side and Equipment Foundations pedestal (7) inner right side face paste is tight；Two nut A (3) are fastened to spiral thousand
Jin top is fastened.
Step 2: by one of gusset (4) load facility sole plate (7) left hand external, make gusset (4) right side and equipment
The external left side of sole plate (7) is adjacent to；Another gusset 4 load facility sole plate (7) right hand external keeps gusset (4) left
End face is adjacent to the external right side of Equipment Foundations pedestal (7)；Two screw rods (5) are respectively penetrated in the through-hole of two gussets (4)；
It is screwed on screw rod (5) and is tightened by nut B (6).
Step 3: Equipment Foundations pedestal (7) carries out inner support in inside by screw jack, passes through gusset (4) and screw rod (5) spiral shell
Line connects the reinforced frame to be formed and carries out external pressure fastening in outside, effectively adjusts the rigidity of Equipment Foundations pedestal (7), improves intrinsic
Frequency, thus effectively far from resonance region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813759.4A CN110486578B (en) | 2019-08-30 | 2019-08-30 | Rotating equipment foundation natural frequency adjusting device and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910813759.4A CN110486578B (en) | 2019-08-30 | 2019-08-30 | Rotating equipment foundation natural frequency adjusting device and adjusting method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110486578A true CN110486578A (en) | 2019-11-22 |
| CN110486578B CN110486578B (en) | 2024-06-07 |
Family
ID=68555408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910813759.4A Active CN110486578B (en) | 2019-08-30 | 2019-08-30 | Rotating equipment foundation natural frequency adjusting device and adjusting method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486578B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB754943A (en) * | 1954-02-23 | 1956-08-15 | British Thomson Houston Co Ltd | Improvements relating to the mounting of large machines on a bed or seating surface |
| DE1015273B (en) * | 1953-08-19 | 1957-09-05 | Ernst Rausch Dr Ing | Method for changing the natural frequency of structures |
| JPH08128013A (en) * | 1994-11-01 | 1996-05-21 | Kajima Corp | Vibration damping device for cable stayed bridge under construction and its control method |
| JP2013100905A (en) * | 2013-01-15 | 2013-05-23 | Maeta Concrete Industry Ltd | Rack for mechanical apparatus |
| CN204068523U (en) * | 2014-08-06 | 2014-12-31 | 广东珠海金湾发电有限公司 | A kind of generator unit stator aggregation water pipe supporting structure |
| CN207437261U (en) * | 2017-05-17 | 2018-06-01 | 哈尔滨电机厂有限责任公司 | For the basic bindiny mechanism of oblique support arm upper spider hydrogenerator |
| CN109099100A (en) * | 2018-10-30 | 2018-12-28 | 石家庄铁道大学 | A kind of negative stiffness device easy to adjust |
| CN211315524U (en) * | 2019-08-30 | 2020-08-21 | 江苏核电有限公司 | Basic natural frequency adjusting device of rotating equipment |
-
2019
- 2019-08-30 CN CN201910813759.4A patent/CN110486578B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1015273B (en) * | 1953-08-19 | 1957-09-05 | Ernst Rausch Dr Ing | Method for changing the natural frequency of structures |
| GB754943A (en) * | 1954-02-23 | 1956-08-15 | British Thomson Houston Co Ltd | Improvements relating to the mounting of large machines on a bed or seating surface |
| JPH08128013A (en) * | 1994-11-01 | 1996-05-21 | Kajima Corp | Vibration damping device for cable stayed bridge under construction and its control method |
| JP2013100905A (en) * | 2013-01-15 | 2013-05-23 | Maeta Concrete Industry Ltd | Rack for mechanical apparatus |
| CN204068523U (en) * | 2014-08-06 | 2014-12-31 | 广东珠海金湾发电有限公司 | A kind of generator unit stator aggregation water pipe supporting structure |
| CN207437261U (en) * | 2017-05-17 | 2018-06-01 | 哈尔滨电机厂有限责任公司 | For the basic bindiny mechanism of oblique support arm upper spider hydrogenerator |
| CN109099100A (en) * | 2018-10-30 | 2018-12-28 | 石家庄铁道大学 | A kind of negative stiffness device easy to adjust |
| CN211315524U (en) * | 2019-08-30 | 2020-08-21 | 江苏核电有限公司 | Basic natural frequency adjusting device of rotating equipment |
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| Publication number | Publication date |
|---|---|
| CN110486578B (en) | 2024-06-07 |
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