CN206192780U - A gravitational effect analogue means for turbo generator set reduced scale model test - Google Patents
A gravitational effect analogue means for turbo generator set reduced scale model test Download PDFInfo
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- CN206192780U CN206192780U CN201621105099.2U CN201621105099U CN206192780U CN 206192780 U CN206192780 U CN 206192780U CN 201621105099 U CN201621105099 U CN 201621105099U CN 206192780 U CN206192780 U CN 206192780U
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Abstract
The utility model discloses a gravitational effect analogue means for turbo generator set reduced scale model test belongs to reduced scale model test technical field. This gravitational effect analogue means includes: the control unit and at least a set of pretension unit (100), every group pretension unit (100) include: hydraulic jack (1) and traction element (3), base (11) of hydraulic jack (1) are fixed on bottom plate (40) on turbo generator set basis, the one end of traction element (3) with the piston rod of hydraulic jack (1) is connected, the other end of traction element (3) is fixed on roof crossbeam (50) on turbo generator set basis, hydraulic jack (1) with the the control unit electricity is connected, the control unit is used for control the size of the power that applyed hydraulic jack (1). This gravitational effect analogue means can accurate simulation gravitational effect and operation safety.
Description
Technical field
The utility model is related to scale (model) test technical field, more particularly to a kind of to be used for Turbo-generator Set reduced scale mould
The gravitational effect analogue means of type experiment.
Background technology
Steam turbine-generatot set foundation is the important component of Turbo-generator Set.Spring vibration-isolated foundation is a kind of conventional
Steam turbine-generatot set foundation.The structure of spring vibration-isolated foundation mainly includes base plate, column and top board, is set between column and top board
There is spring.In order to ensure the properties of steam turbine-generatot set foundation, generally using the method for scale (model) test to its performance
Studied.Under normal circumstances, scale (model) test can ignore influence of the gravitational effect to result of the test.But it is special at some
In the case of, gravitational effect can influence final result of the test.For example, in the plan power shock test of spring vibration-isolated foundation, contracting
The gravity of the chi model gravity actual much smaller than spring vibration-isolated foundation (including spring vibration-isolated foundation top board gravity and be arranged on
The gravity of the equipment on top board), the pressure that the spring on scaled model is subject to significantly reduces, the level of the upper and lower slipmat of spring
Frictional force (horizontal friction force=gravity × coefficient of friction) can also be much smaller than actual horizontal friction force, it is impossible to accurately judge anti-skidding
Whether the horizontal friction force of pad can resist the horizontal seismic force transmitted by spring, so as to influence the accuracy of result of the test.Cause
This, in this case it is necessary to the gravitational effect of the equipment to spring vibration-isolated foundation top board and on top board carries out mould
Intend, so that the pressure effect that the spring of spring vibration-isolated foundation is subject to is consistent with actual conditions.
It is existing during Turbo-generator Set scale (model) test, to spring vibration-isolated foundation top board and installed in top
The method that the gravitational effect of the equipment on plate is simulated applies gravity, base plate and top in spring vibration-isolated foundation for artificial rotation
A screw rod is fixed on plate crossbeam respectively, two screw flights are in opposite direction, female by having between two screw rods
Sleeve connection, provides vertical pretightning force by way of artificial rotary screw, carrys out spring of the dummy activity in spring vibration-isolated foundation
On gravitational effect.
During the utility model is realized, designer has found that prior art at least has problems with：Existing people
Work rotation apply gravity method can not accurate controling power size, and when the gravity of Turbo-generator Set is larger, manually
Operation can not reach required gravity.Additionally, there is potential safety hazard in artificial operation.
Utility model content
In order to solve the above technical problems, the utility model one kind is provided being capable of accurate simulation gravitational effect and safe operation
The gravitational effect analogue means for Turbo-generator Set scale (model) test.
Specifically, including following technical scheme：
The utility model embodiment provides a kind of gravitational effect for Turbo-generator Set scale (model) test and simulates dress
Put, the gravitational effect analogue means includes：Control unit and at least one set of preload unit；
Preload unit described in every group includes：Hydraulic jack and traction element；
The base of the hydraulic jack is fixed on the base plate of steam turbine-generatot set foundation；
One end of the traction element is connected with the piston rod of the hydraulic jack, and the other end of the traction element is consolidated
It is scheduled in the roof rail of the steam turbine-generatot set foundation；
The hydraulic jack is electrically connected with described control unit, and described control unit is used to control the hydraulic jack
The size of the power for being applied.
Further, the gravitational effect analogue means also includes：Force snesor；The force snesor is arranged on the liquid
Press on the piston rod of jack and electrically connected with described control unit.
Specifically, the traction element includes：Chain and hanging belt；One end of the chain and the hydraulic jack
Piston rod connection, the other end of the chain is connected with the hanging belt；One end of the hanging belt is connected with the chain,
The other end of the hanging belt is connected after bypassing the roof rail of the steam turbine-generatot set foundation with the chain.
Specifically, the first suspension ring are fixed with the piston rod of the hydraulic jack, the chain hangs by described first
Ring is connected with the piston rod of the hydraulic jack.
Specifically, the second suspension ring are fixed with the hanging belt, butterfly is passed through between second suspension ring and the chain
Button connection.
Specifically, the material of the chain is steel.
Specifically, the base of the hydraulic jack is fixed on the base plate of the steam turbine-generatot set foundation by built-in fitting
On.
Specifically, the gravitational effect analogue means includes preload unit described in 14 groups.
The beneficial effect of technical scheme that the utility model embodiment is provided is：
In the gravitational effect analogue means that the utility model embodiment is provided, at least one set of preload unit is provided with, it is each
Group preload unit includes hydraulic jack and traction element, and hydraulic jack is fixed on the base plate of steam turbine-generatot set foundation
On, one end of traction element and hydraulic jack are connected, and the other end is fixed in the roof rail of steam turbine-generatot set foundation.Liquid
Pressure jack is used to provide vertical pretightning force, and traction element is used to transmit the vertical pretightning force provided by hydraulic jack, passes through
The size of power that control unit control hydraulic jack is applied simulates steam turbine-generatot set foundation top board and installed in top
The gravitational effect of the equipment on plate.Carry out the size of controling power by then passing through hydraulic jack, therefore with existing by artificial
The mode that rotary screw applies gravity is compared, and the gravitational effect analogue means that the utility model embodiment is provided is to gravitational effect
Simulation accuracy is higher, and can provide larger power, meets the demand of the larger Steam Turbine of gravity.Additionally, this practicality
The gravitational effect analogue means that new embodiment is provided is that hydraulic jack is controlled by control unit, and staff need not
Operated inside into steam turbine-generatot set foundation scaled model, operated safer.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to needed for embodiment description
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
The structural representation of the gravitational effect analogue means that Fig. 1 is provided for the utility model embodiment；
The scheme of installation of the gravitational effect analogue means that Fig. 2 is provided for the utility model embodiment；
Fig. 3 is the top view of Fig. 2.
Reference in figure is represented respectively：
100- preload units；
1- hydraulic jacks；11- bases；12- oil cylinders；
2- force snesors；
3- traction elements；The suspension ring of 31- first；32- chains；33- butterfly buttons；The suspension ring of 34- second；35- hanging belts；
The base plate of 40- steam turbine-generatot set foundations；
The roof rail of 50- steam turbine-generatot set foundations.
Specific embodiment
To make the technical solution of the utility model and advantage clearer, the utility model is implemented below in conjunction with accompanying drawing
Mode is described in further detail.
The utility model embodiment provides a kind of gravitational effect simulation for Turbo-generator Set scale (model) test
Device, referring to Fig. 1, the gravitational effect analogue means includes：Control unit and at least one set of preload unit 100.
Wherein, every group of preload unit 100 includes：Hydraulic jack 1 and traction element 3.
The base 11 of hydraulic jack 1 is fixed on the base plate 40 of steam turbine-generatot set foundation.
One end of traction element 3 is connected with the piston rod of hydraulic jack 1, and the other end of traction element 3 is fixed on steamer
In the roof rail 50 on generating set basis.
Hydraulic jack 1 is electrically connected with control unit, and control unit is used for the big of the power for controlling hydraulic jack 1 to be applied
It is small.
In the gravitational effect analogue means that the utility model embodiment is provided, at least one set of preload unit 100 is provided with, often
One group of preload unit 100 includes hydraulic jack 1 and traction element 3.Wherein, hydraulic jack 1 includes base 11, drawing and pressing type
The part such as oil cylinder 12 and piston rod.The base 11 of hydraulic jack 1 is fixed on the base plate 40 of steam turbine-generatot set foundation,
So as to hydraulic jack 1 is fixed on the base plate 40 of steam turbine-generatot set foundation to provide vertical gravity.Meanwhile, traction element
The piston rod connection of 3 one end and hydraulic jack 1, the other end is fixed in the roof rail 50 of steam turbine-generatot set foundation,
Vertical gravity is transmitted with this.The flexible of piston rod of hydraulic jack 1 is controlled to control what it was applied by control unit
The size of power simulates the gravitational effect of Turbo-generator Set, top board and peace that the spring of such as spring vibration-isolated foundation is subject to
The gravitational effect of the equipment on top board.
Carry out the size of controling power by then passing through hydraulic jack, therefore apply weight by artificial rotary screw with existing
The mode of power is compared, the gravitational effect analogue means that the utility model embodiment is provided to the simulation accuracy of gravitational effect more
Height, and larger power can be provided, meet the demand of the larger Turbo-generator Set of gravity.Additionally, the utility model is implemented
The gravitational effect analogue means that example is provided is that hydraulic jack is controlled by control unit, and staff need not enter steamer
Operated inside the scaled model of generating set basis, operated safer.
Further, referring to Fig. 1, the gravitational effect analogue means that the utility model embodiment is provided also includes：Power is sensed
Device 2.Force snesor 2 is arranged on the piston rod of hydraulic jack 1 and is electrically connected with control unit.Force snesor 2 detects liquid
The size of the power that pressure jack 1 is provided, and testing result is transmitted to control unit, control unit is passed further according to force snesor 2
The size of the power that defeated data are provided hydraulic jack 1 is adjusted.
Further, referring to Fig. 1, in the gravitational effect analogue means that the utility model embodiment is provided, traction element 3
Specific implementation can be：Including the chain 32 and hanging belt 35 that are connected with each other.Wherein, one end of chain 32 and hydraulic pressure thousand
The piston rod connection on jin top 1, the other end of chain 32 is connected with hanging belt 35.Hanging belt 35 is generally made using synthetic fibers,
Have the advantages that intensity is high, wear-resistant, soft texture.One end of hanging belt 35 is connected with chain 32, the other end of hanging belt 35
It is connected with chain 32 after the roof rail 50 for bypassing steam turbine-generatot set foundation.I.e. the two ends of hanging belt 35 connect to form annular and cover
In the roof rail 50 of steam turbine-generatot set foundation.
Vertical gravity is transmitted by the way of above-mentioned chain+hanging belt, the rigidity of horizontal direction can be effectively reduced so that
The gravitational effect analogue means that the utility model embodiment is provided is when in use to the water of steam turbine-generatot set foundation scaled model
The influence of flat rigidity can be ignored, and realize horizontal direction Low rigidity pretensioning effect.
Those skilled in the art can also transmit vertical gravity using the traction element 3 of other forms, for example only with
Hanging belt or only with chain etc..
In the utility model embodiment, the mode that chain 32 is connected with the piston rod of hydraulic jack 1 can be：In hydraulic pressure
The end of the piston rod of jack 1 is fixed with the first suspension ring 31, and chain 32 is by the first suspension ring 31 and the piston of hydraulic jack 1
Bar is connected.The mode that hanging belt 35 is connected with chain 32 can be：The second suspension ring 34, the second suspension ring 34 are fixed on hanging belt 35
Connected by butterfly button 33 and chain 32 between.Second suspension ring 34 can be U-shaped suspension ring.
In the utility model embodiment, chain 32 can be steel chain, and the intensity of steel chain is higher, can bear compared with
Big active force.
Further, it is when steam turbine-generatot set foundation is manufactured, it will usually which built-in fitting is set on base plate 40, such as pre-buried
Bolt etc..Therefore, in the utility model embodiment, it is possible to use above-mentioned built-in fitting fixes the base 11 of hydraulic jack 1
On the base plate 40 of steam turbine-generatot set foundation.
Further, in the gravitational effect analogue means that the utility model embodiment is provided, the quantity of preload unit 100 can
The factors such as size, the gravity of Turbo-generator Set of the power can be provided according to each hydraulic jack 1 determine, for example can be with
It is 14.Simultaneously as the weight of the top board of Turbo-generator Set is not equally distributed, therefore, it can be sent out according to steamer
The weight of the top board of group of motors arranges every group of position of preload unit 100, referring to Fig. 2 and Fig. 3, i.e., in top board heavier-weight
A fairly large number of preload unit 100 is arranged at position, and the preload unit 100 of negligible amounts is arranged at the position of top board lighter in weight,
So that gravitational effect analog result more conforms to reality.
Further, in the gravitational effect analogue means that the utility model embodiment is provided, control unit can be calculating
Machine or servocontrol equipment etc..
To sum up, the utility model embodiment provides a kind of gravitational effect for Turbo-generator Set scale (model) test
Analogue means.In the device, vertical gravity is provided using hydraulic jack, using the teaching of the invention it is possible to provide larger value of vertical gravity, increase
The scale of gravitational effect simulation.The size of hydraulic jack power is controlled by then passing through control unit, therefore makes the size of power
Control it is more accurate, reliable.Vertical gravity is transmitted by the way of chain+hanging belt, horizontal direction Low rigidity is realized pre-
Tightly.Also, when gravitational effect simulation is carried out, staff need not enter to enter inside steam turbine-generatot set foundation scaled model
Row operation, so as to ensure the safety of staff.
The above is for only for ease of it will be understood by those skilled in the art that the technical solution of the utility model, is not used to
Limitation the utility model.It is all it is of the present utility model spirit and principle within, any modification, equivalent substitution and improvements made etc.,
Should be included within protection domain of the present utility model.
Claims (8)
1. a kind of gravitational effect analogue means for Turbo-generator Set scale (model) test, it is characterised in that including：Control
Unit and at least one set of preload unit (100)；
Preload unit (100) includes described in every group：Hydraulic jack (1) and traction element (3)；
The base (11) of the hydraulic jack (1) is fixed on the base plate of steam turbine-generatot set foundation (40)；
One end of the traction element (3) is connected with the piston rod of the hydraulic jack (1), the traction element (3) it is another
One end is fixed in the roof rail of the steam turbine-generatot set foundation (50)；
The hydraulic jack (1) electrically connects with described control unit, and described control unit is used to control the hydraulic jack
(1) size of the power for being applied.
2. gravitational effect analogue means according to claim 1, it is characterised in that the gravitational effect analogue means is also wrapped
Include：Force snesor (2)；
The force snesor (2) electrically connects on the piston rod of the hydraulic jack (1) and with described control unit.
3. gravitational effect analogue means according to claim 1 and 2, it is characterised in that the traction element (3) includes：
Chain (32) and hanging belt (35)；
One end of the chain (32) is connected with the piston rod of the hydraulic jack (1), the other end of the chain (32) with
Hanging belt (35) connection；
One end of the hanging belt (35) is connected with the chain (32), and the other end of the hanging belt bypasses the turbine generator
It is connected with the chain (32) after the roof rail (50) of crew base.
4. gravitational effect analogue means according to claim 3, it is characterised in that the piston of the hydraulic jack (1)
The first suspension ring (31) are fixed with bar, the chain (32) is by first suspension ring (31) and the hydraulic jack (1)
Piston rod is connected.
5. gravitational effect analogue means according to claim 3, it is characterised in that is fixed with the hanging belt (35)
Two suspension ring (34), buckle (33) and connect between second suspension ring (34) and the chain (32) by butterfly.
6. gravitational effect analogue means according to claim 3, it is characterised in that the material of the chain (32) is steel.
7. gravitational effect analogue means according to claim 1, it is characterised in that the base of the hydraulic jack (1)
(11) it is fixed on the base plate of the steam turbine-generatot set foundation (40) by built-in fitting.
8. gravitational effect analogue means according to claim 1, it is characterised in that the gravitational effect analogue means includes
Preload unit (100) described in 14 groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105099.2U CN206192780U (en) | 2016-10-08 | 2016-10-08 | A gravitational effect analogue means for turbo generator set reduced scale model test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621105099.2U CN206192780U (en) | 2016-10-08 | 2016-10-08 | A gravitational effect analogue means for turbo generator set reduced scale model test |
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| CN206192780U true CN206192780U (en) | 2017-05-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108945513A (en) * | 2018-04-19 | 2018-12-07 | 哈尔滨飞机工业集团有限责任公司 | A kind of moveable mooring of helicopter hovering test device |
-
2016
- 2016-10-08 CN CN201621105099.2U patent/CN206192780U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108945513A (en) * | 2018-04-19 | 2018-12-07 | 哈尔滨飞机工业集团有限责任公司 | A kind of moveable mooring of helicopter hovering test device |
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