CN108757501A - A kind of centrifugal pump test rackwork and its operation method - Google Patents
A kind of centrifugal pump test rackwork and its operation method Download PDFInfo
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- CN108757501A CN108757501A CN201810318124.2A CN201810318124A CN108757501A CN 108757501 A CN108757501 A CN 108757501A CN 201810318124 A CN201810318124 A CN 201810318124A CN 108757501 A CN108757501 A CN 108757501A
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- 238000012360 testing method Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 230000003028 elevating effect Effects 0.000 claims abstract description 10
- 230000008093 supporting effect Effects 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000002474 experimental method Methods 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000003319 supportive effect Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010297 mechanical methods and process Methods 0.000 claims description 2
- 230000005226 mechanical processes and functions Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 abstract 1
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- 230000009471 action Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241000270728 Alligator Species 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
Abstract
The present invention provides centrifugal pump test rackwork and its operation method.The present invention includes rotating mechanism and elevating mechanism, rotating mechanism includes support component, rotary drive assembly, and rotary round table, the support column of support component is formed with rotary round table and is rotatablely connected, hinged multiple roller supporting rotary round table on frame, the toothed chain ring of rotary drive assembly is connected in rotary round table, and electric rotating machine connects transmission gear, and transmission gear engages connection with the formation of toothed chain ring；Elevating mechanism includes crane, lifting drive component, and carrying platform, the skeleton frame of crane is packed in rotary round table, and the drive rod of cross frames is connected with drive rod rotation, and drive rod top is hinged on the carrying platform, bottom end is hinged on skeleton frame, drive link top is hinged, and bottom end is hinged on a slide guide bar on the carrying platform, recessed two slideways of skeleton frame face-off, in the pulley insertion slideway at slide guide bar both ends, the hydraulic cylinder for lifting drive component is arranged by hinged between slide guide bar and drive rod.
Description
Technical field
The invention belongs to field of mechanical technique, are related to a kind of pump experimental implementation system, and especially a kind of centrifugal pump test is used
Rackwork and its operation method.
Background technology
Centrifugal pump capability experiment is in the optimal path for obtaining centrifugal pump properties of product, and all centrifugal pump products are put into
It is required for carrying out centrifugal pump experiment before actual use.General centrifugal pump test platform is all tested on level land, is thus being tried
Angle and the height adjusting for testing middle centrifugal pump be not easy to operate, and adjusts degree and exact requirements are not achieved.
After completing centrifugal pump the Hydraulic Design, performance test is often carried out to verify the reliability of design result, or
It is to provide data support further to design.Since centrifugal pump product has wide variety, the various feature of pattern each
Appearance and size under model is all different, and the intake-outlet position of centrifugal pump is also not necessarily completely the same, therefore is carrying out reality to it
It when testing, needs to carry out multiple mounting and adjusting, under previous experiment condition, needs that height will be paved under centrifugal pump base not
One supporter, it is time-consuming and laborious.When being tested to different centrifugal pumps, adjustment motor position is also needed, work is caused
Amount increases, and influences experiment progress.In view of experimental pump in experimentation and mating motor have certain weight, using current
Existing rotary lifting platform is being susceptible to the phenomenon that articles holding table tilts after long-time service on the market, influences motor and reality
Test pump to neutrality, seriously affect the safety and reliability of experiment.Meanwhile the lifting platform table top provided on the market at present is inconvenient
Experimental pump installation is fixed, be easy to cause during experiment due to vibration and caused by position offset, influence experiment progress and
Experimental result.
At present in terms of centrifugal pump test, do not retrieve also in centrifugal pump test platform using the related special of rotary elevating platform
Profit, therefore the present invention is expected to fill up industry blank, promotes centrifugal pump conventional efficient.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of to pass through rotational structure and lifting
Structure is combined, and is further improved the driving structure and mode of rotation, lifting, realizes that the centrifugal pump test of quick and stable positioning is used
Rackwork and its operation method.
Object of the invention can be realized by the following technical scheme：A kind of centrifugal pump test rackwork, including position
Rotating mechanism in lower part and superposed elevating mechanism, the rotating mechanism include underlying support component, rotation
Drive component, and the rotary round table that is located above, the support component includes centrally located support column and the frame positioned at periphery
Frame, the top socket bearing of the support column is formed with the rotary round table to be rotatablely connected, and is uniformly hinged on the frame more
Circular orbit is arranged on the bottom surface of the rotary round table in a idler wheel, and multiple roller supportings are formed in the circular orbit
Roller slide lines, the rotary drive assembly include electric rotating machine, transmission gear and toothed chain ring, and the toothed chain ring is connected in
On the bottom surface of the rotary round table, the drive shaft of the electric rotating machine connects transmission gear, the transmission gear by speed changer
The drive connection of tooth engagement is formed with the toothed chain ring；The elevating mechanism includes underlying crane, lifting driving group
Part, and the carrying platform that is located above, the crane includes the skeleton frame of bottom, if the skeleton frame is packed in institute by bolt stem
It states in rotary round table, is connected by cross frames between the skeleton frame and the carrying platform, the cross frames include at least one set
Drive rod and drive link, the drive rod and drive link are rotatablely connected by central point, and the top of the drive rod is hinged on described
On the bottom surface of carrying platform, bottom end is hinged on the skeleton frame, and the top of the drive link is hinged on the bottom of the carrying platform
On face, bottom end is hinged on a slide guide bar, is in recessed two slideways that stand facing each other on the madial wall of the skeleton frame, the slide guide bar
Both ends are hinged with pulley, and the pulley, which is embedded in corresponding slideway, forms sliding connection, and the lifting drive component includes liquid
The cylinder body fixing end of cylinder pressure, the hydraulic cylinder is hinged on the slide guide bar, and the body of rod telescopic end of the hydraulic cylinder is hinged on institute
It states on drive rod.
For this centrifugal pump test in rackwork, mounting hole is opened at the center of rotary round table, is installed bearing in mounting hole, is led to
It crosses support column and plays the role of fixed rotary round table rotation center, ensure the fluency of round steel platform rotation.Toothed chain ring position
It in the inner ring of circular orbit, is not thus interfered with each other with wheel actions in rotating operation, in addition the bracing ring of multiple idler wheels is straight
Diameter is bigger, can more improve support force effect, ensures the stationarity of rotating platform.The center phase at the center of toothed chain ring and rotary round table
Overlap, thus can ensure that rotary round table in go to action to neutrality, avoid being eccentrically rotated unstable.In drive part,
The kind of drive engaged using alligator so that transmission is more steady, and rotary round table has reliable well in startup and stopping
Property.Electric rotating machine is connected with transmission gear by speed changer, to ensure the controllability of the rotary speed of rotary round table, is protected simultaneously
Demonstrate,prove using micro-machine in the case of driving torque it is enough, realize the purpose of energy-saving and emission-reduction.
Cross frames structure in crane is simple shear formula lifting structure, which is capable of providing steady during lifting action
It is qualitative, while can also ensure the accuracy of lifting position.Circular hole is installed in the cylinder body bottom end setting of hydraulic cylinder, is in by installing circular hole
Rotation is socketed on slide guide bar；Fixed swivel pin on drive rod, the body of rod outer end setting installation circular hole of hydraulic cylinder, the body of rod pass through peace
Dress circular hole is socketed in rotation on swivel pin.
In above-mentioned centrifugal pump test rackwork, the center at the center of the carrying platform and the rotary round table
It coincides on same root vertical line.The center of two table tops is opposite, to ensure gravitational equilibrium, in lifting or rotational run not
It can cause to lay particular stress on and wave, further improving stability.
In above-mentioned centrifugal pump test rackwork, the rotary round table includes upper layer steel disk and lower layer's steel disk, institute
Several reinforcing ribs that are connected between upper layer steel disk and lower layer's steel disk are stated, several reinforcing ribs intersect setting.Pass through structure
Optimization reaches in the case of most thin steel platform thickness so that integral platform intensity highest, reduces the weight of rotary round table itself
Amount, to reduce electric rotating machine load.
In above-mentioned centrifugal pump test rackwork, it is fixed with wheel carrier on the frame, is put down on the wheel carrier to setting
Articulated shaft is set, the center of the idler wheel, which is socketed on the articulated shaft, forms rotation connection.Wheel carrier is formed by welding with frame
One is connected.It is rotated around articulated shaft to realize idler wheel smoothly spinning motion by idler wheel, it is ensured that rotary round table is in steering procedure
Good supporting role is played in the rolling friction of middle idler wheel.
In above-mentioned centrifugal pump test rackwork, fixed mounting bracket on the frame, the electric rotating machine is fixedly mounted with
On the mounting bracket.Electric rotating machine is set to be connected on frame by mounting bracket, to ensure the electric rotating machine itself in action
Stability.
In above-mentioned centrifugal pump test rackwork, there is installation base on the top surface of the carrying platform, it is described
Centrally disposed for install the cross recess for testing instrument, also recessed several T-slots on the installation base of installation base, institute
The periphery setting rhone of installation base is stated, the T-slot is connected with the rhone, open-minded on the bottom surface of the rhone
Discharge outlet.Cross recess is specifically used for the position of fixed experimental pump.After sewage in experimental pump by flowing out, first flow in T-slot, so
It is flowed around by T-slot afterwards, flows into rhone, final concentrate is discharged by a discharge outlet, with the dry and wet of guarantee test platform point
From.
In above-mentioned centrifugal pump test rackwork, several limit for height columns, several limits for height are set on the skeleton frame
The top surface of column is located in the same horizontal plane, and the top surface of several limit for height columns can form supportive with the bottom surface of the carrying platform
Limit contact.The apical side height of limit for height column is the minimum reducible height and position of carrying platform, is acted on and being made by limit for height column
Carrying platform height is unlikely to too low and leads to equipment damage.
In above-mentioned centrifugal pump test rackwork, the cross frames include two groups of drive rods and drive link, two groups
Drive rod and the symmetrical side edge being arranged in carrying platform bottom surface of drive link, the central point of two groups of drive rods and drive link
It is connected by a connecting rod, the quantity of the hydraulic cylinder is two, and a hydraulic cylinder is respectively provided on every group of drive rod and drive link.
The operation method of centrifugal pump test rackwork, includes the following steps：
1), start hydraulic cylinder first to bounce back its body of rod, since drive rod, drive link and hydraulic cylinder form deformable triangle
Structure shortens with the length of hydraulic cylinder, drives the drive rod being hinged and drive link to turn to, keeps angle between the two gradual
Become smaller, synchronizing makes the pulley at slide guide bar both ends be slid outward along slideway, causes Integral cross frame height to be gradually reduced, until carrying
Platform reaches lowest point；
2), experimental pump is placed in the center of carrying platform, cross recess and experimental pump are pumped to the spiral shell of foot by bolt
Keyhole is fixed, and then installation connects other associated components on experimental pump；Driving motor is fixed on the one of carrying platform
End, is connected by screw bolts mode and is fixed by T-slot, driving motor is connected by shaft coupling and torque sensor again
It connects；
Associated components include import pressure-measuring pipe, export pressure-measuring pipe, torque sensor etc..
3), then start hydraulic cylinder and stretch out its body of rod, since drive rod, drive link and hydraulic cylinder form deformable triangle
Structure drives the drive rod being hinged and drive link to turn to, keeps angle between the two gradual with the length of hydraulic cylinder
Become larger, synchronizing makes the pulley at slide guide bar both ends inwardly be slid along slideway, causes Integral cross frame height to gradually rise, until carrying
Platform arrival requires height and position；
4), then start electric rotating machine, transmission gear forward or reverse is driven by its drive shaft, by engaging connect band
Moving teeth chain link forward or reverse, thus synchronous drive rotary round table and thereon equipment steering, until reaching proper angle makes rotation
Motor stopping；
5) and then further according to step 1) or 3), lifting fine tuning is carried out again to the height of carrying platform, makes pressure-measuring pipe height
It is highly consistent with carrying platform external stability pipeline, pressure-measuring pipe is connected with extension tube again with exterior line then, is completed whole
A experimental provision is built；
6), after completing experiment test, experimental pump pressure-measuring pipe is dismantled, remains in the sewage meeting in experiment pipeline at this time
It is a large amount of to overflow, so that all sewage are all collected into rhone under the guide functions of T-slot, then unify to be arranged by discharge outlet
Go out；
7), after sewage emptying, carrying platform height is reduced, the test pump more renewed, then increase carrying platform again,
And then the replacement of experimental subjects is rapidly completed, improve working efficiency.
In above-mentioned operation method, the rate of climb of the carrying platform is no more than 5cm/s, to ensure in practical operation
The height of carrying platform can be finely tuned in the process so that experimental pump can be good at connecting with pipeline progress centering.
Compared with prior art, this centrifugal pump test is had the following advantages with rackwork and its operation method：
After having used the present apparatus, in centrifugal pump experimentation, the presence of liftable experimental bench enormously simplifies
Fixed experimental pump height and the workload of position, need not worry to find the feet of proper height, again to improve work
Efficiency.It, equally can be only by rotary experimental platform meanwhile in the different centrifugal pump of two mounting position of motor of measurement
The step for being measured in the case of replacing the pump housing, simplifying motor position adjustment.In addition, good separating dry space from moist space design,
It ensure that the clean and tidy of working environment, promote staff's happiness.
Description of the drawings
Fig. 1 is the overall structure diagram of this centrifugal pump test rackwork.
Fig. 2 is the structural schematic diagram of rotating mechanism in the present invention.
Fig. 3 is the structural schematic diagram of elevating mechanism in the present invention.
In figure, 1, import pressure-measuring pipe；2, experimental pump；3, pressure-measuring pipe is exported；4, torque sensor；5, driving motor；6, it props up
Dagger；7, frame；8, idler wheel；9, electric rotating machine；10, transmission gear；11, toothed chain ring；12, rotary round table；13, skeleton frame；14, it limits
Gao Zhu；15, drive rod；16, drive link；17, slide guide bar；18, pulley；19, connecting rod；20, hydraulic cylinder；21, carrying platform；21a,
Cross recess；21b, T-slot；21c, rhone.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1 to Figure 3, this centrifugal pump test rackwork includes positioned at the rotating mechanism of lower part and positioned at upper
The elevating mechanism in portion, rotating mechanism include underlying support component, rotary drive assembly, and the rotary round table being located above
12, support component includes centrally located support column 6 and the frame 7 positioned at periphery, top socket bearing and the rotation of support column 6
Round platform 12 forms rotation connection, is uniformly hinged with multiple idler wheels 8 on frame 7, circular orbit is arranged on the bottom surface of rotary round table 12,
Multiple idler wheels 8, which are supported in circular orbit, forms roller slide lines, and rotary drive assembly includes electric rotating machine 9, driving cog
Wheel 10 and toothed chain ring 11, toothed chain ring 11 are connected on the bottom surface of rotary round table 12, and the drive shaft of electric rotating machine 9 is connected by speed changer
Transmission gear 10 is connect, transmission gear 10 forms the drive connection of tooth engagement with toothed chain ring 11；Elevating mechanism includes underlying
Crane lifts drive component, and the carrying platform 21 being located above, and crane includes the skeleton frame 13 of bottom, and skeleton frame 13 passes through
If bolt stem is packed in rotary round table 12, connected by cross frames between skeleton frame 13 and carrying platform 21, cross frames include extremely
Few one group of drive rod 15 and drive link 16, drive rod 15 and drive link 16 are rotatablely connected by central point, the top hinge of drive rod 15
It is connected on the bottom surface of carrying platform 21, bottom end is hinged on skeleton frame 13, and the top of drive link 16 is hinged on the bottom of carrying platform 21
On face, bottom end is hinged on a slide guide bar 17, in recessed two slideways of standing facing each other on the madial wall of skeleton frame 13, the two of slide guide bar 17
End is hinged with pulley 18, and pulley 18, which is embedded in corresponding slideway, forms sliding connection, and lifting drive component includes hydraulic cylinder 20,
The cylinder body fixing end of hydraulic cylinder 20 is hinged on slide guide bar 17, and the body of rod telescopic end of hydraulic cylinder 20 is hinged on drive rod 15.
For this centrifugal pump test in rackwork, mounting hole is opened at the center of rotary round table 12, and bearing is installed in mounting hole,
Play the role of 12 rotation center of fixed rotary round table by support column 6, ensures the fluency of round steel platform rotation.Toothed chain
Ring 11 is located in the inner ring of circular orbit, is not thus interfered with each other with the action of idler wheel 8 in rotating operation, in addition multiple idler wheels 8
It supports loop diameter bigger, can more improve support force effect, ensure the stationarity of rotating platform.The center of toothed chain ring 11 and rotational circle
The center of platform 12 coincides, thus can ensure that rotary round table 12 in go to action to neutrality, avoid the shakiness being eccentrically rotated
It is fixed.In drive part, the kind of drive engaged using alligator so that transmission is more steady, and rotary round table 12 is starting and stopping
The good reliabilities of Shi Douyou.Electric rotating machine 9 is connected with transmission gear 10 by speed changer, to ensure the rotation of rotary round table 12
The controllability of rotary speed, at the same ensure using micro-machine in the case of driving torque it is enough, realize energy-saving and emission-reduction
Purpose.
Cross frames structure in crane is simple shear formula lifting structure, which is capable of providing steady during lifting action
It is qualitative, while can also ensure the accuracy of lifting position.The cylinder body bottom end setting installation circular hole of hydraulic cylinder 20, by installing circular hole
It is socketed on slide guide bar 17 in rotation；Fixed swivel pin on drive rod 15, the body of rod outer end setting installation circular hole of hydraulic cylinder 20, bar
Body is socketed in rotation on swivel pin by installing circular hole.
The center of carrying platform 21 is coincided with the center of rotary round table 12 on same root vertical line.The center of two table tops
Relatively, to ensure gravitational equilibrium, will not cause to lay particular stress on to wave in lifting or rotational run, further improving stability.
Rotary round table 12 includes upper layer steel disk and lower layer's steel disk, and be connected several reinforcements between upper layer steel disk and lower layer's steel disk
Muscle, several reinforcing ribs intersect setting.Reached in the case of most thin steel platform thickness by the optimization of structure so that whole
Body platform intensity highest reduces rotary round table 12 weight of itself, to reduce by 9 load of electric rotating machine.
It is fixed with wheel carrier on frame 7, is put down on wheel carrier to setting articulated shaft, the center of idler wheel 8, which is socketed on articulated shaft, to be formed
Rotation connection.Wheel carrier forms one with frame 7 by welding and is connected.It is rotated around articulated shaft to realize that idler wheel 8 is smooth by idler wheel 8
Spinning motion, it is ensured that good supporting role is played in the rolling friction of idler wheel 8 in steering procedure of rotary round table 12.
Fixed mounting bracket on frame 7, electric rotating machine 9 are packed on mounting bracket.Electric rotating machine 9 is set to be connected in by mounting bracket
On frame 7, to ensure the stability of itself of electric rotating machine 9 in action.
There is installation base, the centrally disposed of installation base to test the ten of instrument for installing on the top surface of carrying platform 21
Word groove 21a, also recessed several T-slot 21b on installation base, the periphery of installation base are arranged rhone 21c, T-slot 21b with
Rhone 21c is connected, and discharge outlet is opened on the bottom surface of rhone 21c.Cross recess 21a is specifically used for fixed experimental pump 2
Position.It after sewage in experimental pump 2 by flowing out, first flows in T-slot 21b, is then flowed around by T-slot 21b, flow into draining
Slot 21c, final concentrate is discharged by a discharge outlet, with the separating dry space from moist space of guarantee test platform.
Several limit for height columns 14 are set on skeleton frame 13, and the top surface of several limit for height columns 14 is located in the same horizontal plane, several limits for height
The top surface of column 14 can form supportive limit with the bottom surface of carrying platform 21 and contact.The apical side height of limit for height column 14 is to carry to put down
The minimum reducible height and position of platform 21 causes to set by limit for height column 14 acts on so that 21 height of carrying platform is unlikely to too low
Standby damage.
Cross frames include two groups of drive rods 15 and drive link 16, the 16 symmetrical setting of two groups of drive rods 15 and drive link
Side edge in 21 bottom surface of carrying platform, two groups of drive rods 15 and the central point of drive link 16 are connected by a connecting rod 19, liquid
The quantity of cylinder pressure 20 is two, and a hydraulic cylinder 20 is respectively provided on every group of drive rod 15 and drive link 16.
The operation method of centrifugal pump test rackwork, includes the following steps：
1), start hydraulic cylinder 20 first to bounce back its body of rod, since drive rod 15, drive link 16 and hydraulic cylinder 20 composition are variable
Both the three-legged structure of shape drives the drive rod 15 being hinged and drive link 16 to turn to as the length of hydraulic cylinder 20 shortens, make
Between angle taper into, synchronizing makes the pulley 18 at 17 both ends of slide guide bar be slid outward along slideway, causes Integral cross frame high
Degree is gradually reduced, until carrying platform 21 reaches lowest point；
2), experimental pump 2 is placed in the center of carrying platform 21, pumped cross recess 21a and experimental pump 2 by bolt
The bolt hole of foot is fixed, and then installation connects other associated components on experimental pump 2；Driving motor 5 is fixed on carrying
One end of platform 21 is connected by screw bolts mode and is fixed by T-slot 21b, and driving motor 5 passes through shaft coupling and torque again
Sensor 4 is attached；
Associated components include import pressure-measuring pipe 1, export pressure-measuring pipe 3, torque sensor 4 etc..
3), then start hydraulic cylinder 20 and stretch out its body of rod, since drive rod 15, drive link 16 and hydraulic cylinder 20 composition are variable
Both the three-legged structure of shape drives the drive rod 15 being hinged and drive link 16 to turn to the length of hydraulic cylinder 20, make
Between angle become larger, synchronizing makes the pulley 18 at 17 both ends of slide guide bar inwardly be slid along slideway, causes Integral cross frame high
Degree gradually rises, until the arrival of carrying platform 21 requires height and position；
4), then start electric rotating machine 9,10 forward or reverse of transmission gear is driven by its drive shaft, pass through the company of engagement
11 forward or reverse of tape splicing moving teeth chain link, thus synchronous drive rotary round table 12 and thereon equipment steering, until reaching suitable angular
Degree makes electric rotating machine 9 shut down；
5) and then further according to step 1) or 3), lifting fine tuning is carried out again to the height of carrying platform 21, makes pressure-measuring pipe height
Degree is highly consistent with 21 external stability pipeline of carrying platform, and then pressure-measuring pipe is connected with exterior line with extension tube again, complete
At building for entire experimental provision；
6), after completing experiment test, 2 pressure-measuring pipe of experimental pump is dismantled, remains in the sewage in experiment pipeline at this time
It can largely overflow, so that all sewage are all collected into rhone 21c under the guide functions of T-slot 21b, then unify by arranging
The mouth of a river is discharged；
7), after sewage emptying, carrying platform 21 is highly reduced, the test pump more renewed, then increases carrying again and puts down
Platform 21, and then the replacement of experimental subjects is rapidly completed, improve working efficiency.
The rate of climb of carrying platform 21 is no more than 5cm/s, flat to ensure to finely tune carrying in actual mechanical process
The height of platform 21 so that experimental pump 2 can be good at connecting with pipeline progress centering.
This centrifugal pump test is had the following advantages with rackwork and its operation method：
After having used the present apparatus, in centrifugal pump experimentation, the presence of liftable experimental bench enormously simplifies
2 height of fixed experimental pump and the workload of position, need not worry to find the feet of proper height, again to improve work
Efficiency.It, equally can be only by rotary experimental platform meanwhile in the different centrifugal pump of two mounting position of motor of measurement
The step for being measured in the case of replacing the pump housing, simplifying motor position adjustment.In addition, good separating dry space from moist space design,
It ensure that the clean and tidy of working environment, promote staff's happiness.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although import pressure-measuring pipe 1 is used more herein；Experimental pump 2；Export pressure-measuring pipe 3；Torque sensor 4；Driving
Motor 5；Support column 6；Frame 7；Idler wheel 8；Electric rotating machine 9；Transmission gear 10；Toothed chain ring 11；Rotary round table 12；Skeleton frame 13；Limit
High column 14；Drive rod 15；Drive link 16；Slide guide bar 17；Pulley 18；Connecting rod 19；Hydraulic cylinder 20；Carrying platform 21；Cross recess
21a；T-slot 21b；The terms such as rhone 21c, but it does not preclude the possibility of using other terms.Only using these terms
It is to more easily describe and explain the essence of the present invention；Being construed as any one of the additional limitations is all and this hair
What bright spirit was disagreed.
Claims (10)
- Include the rotating mechanism positioned at lower part and superposed elevating mechanism 1. a kind of centrifugal pump test rackwork, It is characterized in that, the rotating mechanism includes underlying support component, rotary drive assembly, and the rotational circle being located above Platform, the support component include centrally located support column and the frame positioned at periphery, and the top of the support column is socketed bearing It is formed and is rotatablely connected with the rotary round table, be uniformly hinged with multiple idler wheels on the frame, on the bottom surface of the rotary round table Circular orbit is set, and multiple roller supportings are in formation roller slide lines in the circular orbit, the rotation driving Component includes electric rotating machine, transmission gear and toothed chain ring, and the toothed chain ring is connected on the bottom surface of the rotary round table, the rotation The drive shaft of rotating motor connects transmission gear by speed changer, and the transmission gear forms the transmission of tooth engagement with the toothed chain ring Connection；The elevating mechanism includes underlying crane, lifts drive component, and the carrying platform being located above, described Crane includes the skeleton frame of bottom, if the skeleton frame is packed in by bolt stem in the rotary round table, the skeleton frame with it is described Connected by cross frames between carrying platform, the cross frames include at least one set of drive rod and drive link, the drive rod and Drive link is rotatablely connected by central point, and the top of the drive rod is hinged on the bottom surface of the carrying platform, and bottom end is hinged on On the skeleton frame, the top of the drive link is hinged on the bottom surface of the carrying platform, and bottom end is hinged on a slide guide bar, It is hinged with pulley in recessed two slideways that stand facing each other, the both ends of the slide guide bar on the madial wall of the skeleton frame, the pulley is embedding Enter to be formed sliding connection in corresponding slideway, the lifting drive component includes hydraulic cylinder, the cylinder body fixing end of the hydraulic cylinder It is hinged on the slide guide bar, the body of rod telescopic end of the hydraulic cylinder is hinged on the drive rod.
- 2. centrifugal pump test rackwork according to claim 1, which is characterized in that the center of the carrying platform with The center of the rotary round table coincides on same root vertical line.
- 3. centrifugal pump test rackwork according to claim 1, which is characterized in that the rotary round table includes upper layer Steel disk and lower layer's steel disk, be connected several reinforcing ribs between the upper layer steel disk and lower layer's steel disk, and several reinforcing ribs are mutually handed over Fork setting.
- 4. centrifugal pump test rackwork according to claim 1, which is characterized in that be fixed with wheel on the frame Frame is put down on the wheel carrier to setting articulated shaft, and the center of the idler wheel, which is socketed on the articulated shaft, forms rotation connection.
- 5. centrifugal pump test rackwork according to claim 1, which is characterized in that fixed installation on the frame Frame, the electric rotating machine are packed on the mounting bracket.
- 6. centrifugal pump test rackwork according to claim 1, which is characterized in that on the top surface of the carrying platform With installation base, the installation base it is centrally disposed for install the cross recess for testing instrument, on the installation base Rhone is arranged in the periphery of also recessed several T-slots, the installation base, and the T-slot is connected with the rhone, described Discharge outlet is opened on the bottom surface of rhone.
- 7. centrifugal pump test rackwork according to claim 1, which is characterized in that several limits are arranged on the skeleton frame The top surface of Gao Zhu, several limit for height columns are located in the same horizontal plane, top surface and the carrying platform of several limit for height columns Bottom surface can be formed supportive limit contact.
- 8. centrifugal pump test rackwork according to claim 1, which is characterized in that the cross frames include two groups of drives Lever and drive link, two groups of drive rods and the symmetrical side edge being arranged in carrying platform bottom surface of drive link, two groups of drivings Bar is connected with the central point of drive link by a connecting rod, and the quantity of the hydraulic cylinder is two, every group of drive rod and drive link On be respectively provided with a hydraulic cylinder.
- 9. the operation method of centrifugal pump test rackwork according to claim 1, which is characterized in that including following step Suddenly：1), start hydraulic cylinder first to bounce back its body of rod, since drive rod, drive link and hydraulic cylinder form deformable triangle knot Structure shortens with the length of hydraulic cylinder, drives the drive rod being hinged and drive link to turn to, angle between the two is made gradually to become Small, synchronizing makes the pulley at slide guide bar both ends be slid outward along slideway, causes Integral cross frame height to be gradually reduced, until carrying is flat Platform reaches lowest point；2), experimental pump is placed in the center of carrying platform, cross recess and experimental pump are pumped to the bolt hole of foot by bolt It is fixed, then installation connects other associated components on experimental pump；Driving motor is fixed on to one end of carrying platform, is adopted It is connected with mode to be fixed by T-slot, driving motor is attached by shaft coupling and torque sensor again；3), then start hydraulic cylinder and stretch out its body of rod, since drive rod, drive link and hydraulic cylinder form deformable triangle knot Structure drives the drive rod being hinged and drive link to turn to, angle between the two is made gradually to become with the length of hydraulic cylinder Greatly, synchronizing makes the pulley at slide guide bar both ends inwardly be slid along slideway, causes Integral cross frame height to gradually rise, until carrying is flat Platform arrival requires height and position；4), then start electric rotating machine, transmission gear forward or reverse is driven by its drive shaft, by engaging connect band moving teeth Chain link forward or reverse, thus synchronous drive rotary round table and thereon equipment steering, until reaching proper angle makes electric rotating machine It shuts down；5) and then further according to step 1) or 3), lifting fine tuning is carried out again to the height of carrying platform, makes pressure-measuring pipe height and holds Carrying platform external stability pipeline is highly consistent, and then pressure-measuring pipe is connected with exterior line with extension tube again, completes entire real Experiment device is built；6), after completing experiment test, experimental pump pressure-measuring pipe is dismantled, the sewage remained at this time in experiment pipeline can be a large amount of It overflows, so that all sewage are all collected into rhone under the guide functions of T-slot, then unifies to be discharged by discharge outlet；7), after sewage emptying, carrying platform height is reduced, the test pump more renewed, then increase carrying platform again, in turn The replacement of experimental subjects is rapidly completed, improves working efficiency.
- 10. operation method according to claim 9, which is characterized in that the rate of climb of the carrying platform is no more than 5cm/s, to ensure that the height of carrying platform can be finely tuned in actual mechanical process so that experimental pump can be good at and pipeline Carry out centering connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810318124.2A CN108757501A (en) | 2018-04-11 | 2018-04-11 | A kind of centrifugal pump test rackwork and its operation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810318124.2A CN108757501A (en) | 2018-04-11 | 2018-04-11 | A kind of centrifugal pump test rackwork and its operation method |
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| CN108757501A true CN108757501A (en) | 2018-11-06 |
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| CN103444359A (en) * | 2013-08-30 | 2013-12-18 | 华南农业大学 | Banana picking device and picking method |
| CN105333281A (en) * | 2015-11-30 | 2016-02-17 | 陈立坡 | Rotating and lifting stability-enhancement platform for signal tracking equipment |
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