CN201780187U - Centrifugal machine for environment of multi-parameter composite test - Google Patents
Centrifugal machine for environment of multi-parameter composite test Download PDFInfo
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- CN201780187U CN201780187U CN2010202783268U CN201020278326U CN201780187U CN 201780187 U CN201780187 U CN 201780187U CN 2010202783268 U CN2010202783268 U CN 2010202783268U CN 201020278326 U CN201020278326 U CN 201020278326U CN 201780187 U CN201780187 U CN 201780187U
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Abstract
The utility model relates to a centrifugal machine for the environment of a multi-parameter composite test, which comprises a machine seat, a driving motor, a machine arm, a transmission mechanism and a dynamic balance executing mechanism, wherein a web plate is arranged on the machine arm; the transmission mechanism comprises a belt transmission mechanism and a gear mechanism; the gear mechanism comprises a pinion gear coaxial with a driven pulley and a large gear fixedly connected with the machine arm; the upper surface of the large gear is contacted to the bottom surface of the machine arm, and the lower surface of the large gear is provided with an annular slot for containing a thrust ball bearing capable of supplying the axial support for the large gear; the large gear is connected with the machine seat through the thrust ball bearing; a gap exists between the lower surface of the large gear and the machine seat; the large gear is provided with a through hole; the bottom of the through hole extends inwards to form the step provided with an angel contact ball bearing; a cover plate fixedly connected with the machine seat and tightly pressing the angle contact ball bearing is arranged above the upper part of the angle contact ball bearing; and the driving motor and the transmission mechanism are arranged in the machine seat. The centrifugal machine has the advantages of less occupation space of the machine body, and large capacity of the machine arm, various environmental chambers can be loaded, and the self-adaption dynamic balance of the machine arm can be realized.
Description
Technical field
The utility model relates to a kind of hydro-extractor that is used for multi-parameter complex test environment.
Technical background
Along with science and technology, particularly development of aviation and aerospace technology requires more and more higher to dynamo-electric components and parts reliability of products.And the applied environment of these components and parts products becomes increasingly complex, and in emission with during re-entry fligt, can be subjected to the influence such as combinational environment factors such as linear acceleration, temperature, vibration, noises as spacecraft.For guaranteeing spacecraft operate as normal awing, require its surfacing and internal electron instrument and equipment etc. must afford to stand this external impact.Have cheapness, efficient, controlled, the environmental test that advantage such as can repeat and the response of environmental impact is had crucial meaning for testing product.
Linear acceleration parameter in carrying out multi-parameter complex test all is to rely on the rotation generation centrifugal acceleration of linear acceleration testing machine to simulate.The inner structure of hydro-extractor that is used for multi-parameter complex test environment is seldom open, and the horn of hydro-extractor all is a long-armed type, it is bigger to keep horn balance difficulty in the time of work, need realize static equilibrium and transient equilibrium with very big counterweight, need the bigger and special speed reduction unit of power of power source, the hydro-extractor occupation space is big.This horn structure has caused being difficult in the more device of installation on the horn, also just is difficult to carry out the composite testing of more environment.
The utility model content
For the body that overcomes prior art takes up room greatly, the horn capacity is little, is difficult to carry out the composite testing of many environmental factors, and it is little that the utility model provides a kind of body to take up room, the horn capacity is big, can carry the hydro-extractor that is used for multi-parameter complex test environment in multiple environment storehouse.
The hydro-extractor that is used for multi-parameter complex test environment, comprise support, be fixed in the drive motor on the described support, the horn of carrying multi-parameter complex test device, with with the transmission of power of described drive motor gear train to described horn, be fixed on the static equilibrium mass on the horn and be installed on the described horn, realize the dynamically balanced dynamic balance execution mechanism of self-adaptation;
It is characterized in that: described horn is disc, is provided with web on the described horn equably, and described complex parameter test device is installed on the described web;
Described gear train comprises tape handler that is connected with the output shaft of described drive motor and the gear mechanism that is connected with described horn; Described gear mechanism comprises and coaxial pinion wheel of driven pulley and the gear wheel affixed with described horn;
The upper surface of described gear wheel is connected with the underrun bolt of described horn, the lower surface of described gear wheel is provided with and holds a ring groove that the thrust ball bearing of axially mounting can be provided for gear wheel, described gear wheel is connected with described support by described thrust ball bearing, and is gapped between the lower surface of described gear wheel and the described support;
The center of described gear wheel is provided with manhole, the bottom of described through hole extends internally and forms a circle and be used to install one and can limit the radially degree of freedom of described gear wheel and the step of the angular contact ball bearing of degree of freedom straight up, and that the top of described angular contact ball bearing is provided with is affixed with described support, to compress the cover plate of described angular contact ball bearing;
Described drive motor and gear train are installed on described base inner.
Further, the upper surface of described gear wheel is provided with the location annular boss, and the bottom of described horn is provided with the annular groove adaptive with described boss.
Further, be fixed with on the described support with described horn and be connected, enter the gland bonnet in the gear train, be connected for rotating labyrinth sealing between described gland bonnet and the described horn to prevent dust.
Further, the outer rim of described horn is fixed with the guard circle that the device that prevents to be installed on horn flies out, and is distributed with the floor that guarantees its rigidity on the inner periphery of described guard circle equably; Described floor and described horn are affixed.
Further, be provided with the rotation gas supply mechanism that to follow the horn rotation for the gas piping on each test device air feed and the horn in the through hole of described gear wheel, described rotation gas supply mechanism comprises conducting slip ring and the gas piping on the connection horn and the swivel adapter head of external air source that is hollow form, and described swivel adapter head is positioned at described conducting slip ring inside;
The Ding Quan of described conducting slip ring and a mount pad are affixed, and described mount pad is fixed on the described support, the moving-coil of described conducting slip ring and the interlock of described gear wheel; The moving-coil of described conducting slip ring and a rotary flange are affixed, and described rotary flange and described gear wheel are affixed;
Described swivel adapter head decide circle and described mount pad is affixed, the moving-coil of described swivel adapter head is connected with described gas piping;
Described mount pad is positioned at described angular contact ball bearing, and cooperates with the inner ring of described angular contact ball bearing, and described cover plate and described mount pad are affixed.
Further, described dynamic balance execution mechanism comprises the dynamic balance execution unit of regulating its transient equilibrium mass respectively along both direction, described dynamic balance execution unit comprises the base that is fixed on the described horn, be fixed on the guide rail on the described base, the slide block that is slidingly connected with described guide rail and promote described slide block along the reciprocating transient equilibrium gear train of described guide rail, on the affixed and described slide block of described transient equilibrium mass, two adjusting directions of described dynamic balance execution unit are vertical;
Described horn is provided with the harvester of the periodic vibration response of the horn that collection causes by amount of unbalance outward, the amplitude that described harvester and can obtain the vibratory response that different aequums causes and phase place and original unbalance and the moving direction of each slide block and the processor of displacement of calculating horn according to described amplitude and phasometer are connected the processor under described dynamic balance execution unit is controlled by.
Further, described horn is provided with two dynamic balance execution unit, and the guide rail of two dynamic balance execution unit is vertical mutually.
Perhaps, be evenly distributed with four dynamic balance execution unit on the described horn, the guide rail conllinear of two relative dynamic balance execution unit, the moving direction of slide block are opposite; The guide rail of two adjacent dynamic balance execution unit is vertical mutually.
Further, described harvester comprises the photoelectric encoder that is arranged in the pinion wheel rotating shaft, the rotating speed of pinion wheel can be converted to pulse sequence signal, the data collecting card that is connected with described photoelectric encoder is with described data acquisition card connection and respond to the trigger mechanism whether horn vibrates and obtain the vibration transducer of vibration signal and trigger described data collecting card, make it begin to sample;
With the pulse sequence signal of described photoelectric encoder output external clock signal as data collecting card, with the vibration signal of described vibration transducer output input signal as data collecting card, the sampled signal that will obtain after will sampling to described vibration signal according to described external clock signal is as the output signal of described data collecting card, and described sampled signal is imported in the described processor; Described vibration transducer is a current vortex sensor.
Further; described trigger mechanism comprise on the guard circle that is fixed in described horn magnet steel and with the Hall switch of described data acquisition card connection; described horn is whenever goed around; described Hall switch and described magnet steel meet once, and the described data collecting card of trigger action that described Hall switch and described magnet steel send when meeting is sampled.
Further, described transient equilibrium gear train comprises stepper motor and screw mechanism, and leading screw is connected with the output shaft of described stepper motor, and feed screw nut and described mass are affixed; The both sides of described leading screw are provided with the limit switch of restriction slide block moving range respectively, the two ends of described leading screw are connected with base by supporting base respectively, be provided with bearing between described supporting base and the described screw mandrel, described supporting base is fixed in described base; Described stepper motor is controlled by described processor.
Further, the pulse signal input one of described photoelectric encoder output detects in the frequency converter of horn rotating speed, is preset with the rated rotational frequency of horn in the described frequency converter, and described drive motor is controlled by described frequency converter.
Further, described support is the round table-like of hollow, described thrust ball bearing all is connected with the top panel of support with mount pad, the bottom of described support is provided with the adjustment piece that guarantees support reference for installation level, be provided with the support floor on the circumference of described support equably, the support wall between the adjacent support floor is provided with the opening of being convenient to installation.
Further, described tape handler is band transmission synchronously.
Technical conceive of the present utility model is: use discoidal horn, increased the capacity of horn, make centrifugal function that more test device is installed.Web is set on horn, to guarantee the rigidity of horn.
Directly driving horn by gear wheel rotates, and pass through at the inner installed thrust ball bearing of gear wheel, make gear drive not only provide torque for horn, and limited the degree of freedom of gear wheel at vertical direction, and provide the anchorage force that makes progress for gear wheel and horn, increase the load capacity of horn, make that more test device is installed becomes possibility.Established angle contact ball bearing in gear wheel, and compress the inner ring of angular contact ball bearing by cover plate, limited the radially degree of freedom of gear wheel and degree of freedom straight up, be completely fixed the position of gear wheel, guarantee that the rotation center of horn is fixed.The lower surface of gear wheel is designed to round table-like, bigger installing space to be provided in gear wheel inside and to reduce the quality and the moment of inertia of gear wheel.Offer through hole equably at the gear wheel middle part, with quality and the moment of inertia that alleviates gear.
The utility model is by being provided with conducting slip ring and swivel adapter head, and when having realized the rotation power supply of the test device of hydro-extractor inside and rotation air feed, external power source and external air source and connecting line thereof, connecting pipe need not rotation, guarantee the hydro-extractor reliable operation.
In the pulse signal input converter with photoelectric encoder output,,, then make the faster rotational speed of drive motor as if actual speed overgauge rotating speed so that relatively with rated rotational frequency default in actual speed and the frequency converter; If actual speed overgauge rotating speed then makes the rotating speed of drive motor slack-off.Like this, just can guarantee that the linear acceleration that hydro-extractor produces is in steady state (SS) all the time.
By dynamic balance execution mechanism is installed on horn, obtain the adjustment parameter of dynamic balance execution unit by the vibratory response that causes by amount of unbalance of analyzing horn, make horn reach transient equilibrium.When the rotating speed of horn and mass distribution changed, the vibratory response of horn also changed accordingly, and processor will reanalyse, calculate vibratory response, re-move the slide block of dynamic balance execution mechanism, make horn reach transient equilibrium again.
The utlity model has body and take up room for a short time, the horn capacity is big, can carry multiple environmental chamber, can realize the dynamically balanced advantage of self-adaptation of horn.
Description of drawings
Fig. 1 is a stereographic map of the present utility model.
Fig. 2 is a cut-open view of the present utility model.
Fig. 3 is the synoptic diagram of seeing from the top down of gear wheel.
Fig. 4 is the synoptic diagram of seeing from bottom to top of gear wheel.
Fig. 5 is the cut-open view of gear wheel.
Fig. 6 is the synoptic diagram of seeing from the top down of horn.
Fig. 7 is the synoptic diagram of seeing from bottom to top of horn.
Fig. 8 is the cut-open view of horn.
Fig. 9 is the A portion enlarged drawing of Fig. 1.
Figure 10 is that two dynamic balance execution unit are installed on the synoptic diagram on the horn.
Figure 11 is that four dynamic balance execution unit are installed on the synoptic diagram on the horn.
Figure 12 is the cut-open view of dynamic balance execution unit.
Figure 13 is the control flow chart of dynamic balance execution mechanism.
Embodiment
Embodiment one
With reference to Fig. 1-9
The hydro-extractor that is used for multi-parameter complex test environment, comprise support 1, be fixed in the drive motor 2 on the described support, the horn 3 of carrying complex parameter test device, with the transmission of power of described drive motor 2 gear train, be fixed on the static equilibrium mass 5 on the horn and be installed on the described horn 3, realize the dynamically balanced dynamic balance execution mechanism 4 of self-adaptation to described horn 3;
Described horn 3 is disc, is provided with web 31 equably on the described horn 3, and described complex parameter test device is installed on the described web 31;
Described gear train comprises tape handler 61 that is connected with the output shaft of described drive motor 2 and the gear mechanism that is connected with described horn 3; Described gear mechanism comprises and coaxial pinion wheel 621 of driven pulley and the gear wheel 622 affixed with described horn 3;
The upper surface of described gear wheel 622 is connected with the underrun bolt of described horn 3, the lower surface of described gear wheel 622 is provided with and holds a ring groove 6221 that the thrust ball bearing 63 of axial support can be provided for gear wheel 622, described gear wheel 622 connects with described support 1 by described thrust ball bearing 63, and is gapped between the lower surface of described gear wheel 622 and the described support 1;
The center of described gear wheel 622 is provided with manhole 6222, the bottom of described through hole 6222 extends internally and forms a circle and be used to install a step 6223 of angular contact ball bearing 64 that can limit the radially degree of freedom of described gear wheel 622, the top of described angular contact ball bearing 64 is provided with cover plate 65 1 affixed with described support, to compress described angular contact ball bearing 64;
Described drive motor 2 and gear train are installed on described support 1 inside.
The upper surface of described gear wheel 622 is provided with location annular boss 6224, and the bottom of described horn 3 is provided with the annular groove 33 adaptive with described boss 6224.
Be fixed with on the described support 1 with described horn 3 and be connected, enter the gland bonnet 7 in the gear train, be connected for rotating labyrinth sealing between described gland bonnet 7 and the described horn 3 to prevent dust.
The outer rim of described horn 1 is fixed with the guard circle 32 that the device that prevents to be installed on horn flies out, and is distributed with the floor 321 that guarantees its rigidity on the inner periphery of described guard circle 32 equably; Described floor 321 and described horn 1 are affixed.
Described support 1 is the round table-like of hollow, described thrust ball bearing 63 is connected with the top panel of support 1, the bottom of described support 1 is provided with the adjustment piece 8 that guarantees support 1 reference for installation level, be provided with equably on the circumference of described support 1 and support floor 11, the support wall between the adjacent support floor 11 is provided with the opening of being convenient to installation.
Described tape handler is band transmission synchronously.
Technical conceive of the present utility model is: use discoidal horn 3, increased the capacity of horn 3, make centrifugal function that more test device is installed.Web 31 is set on horn, to guarantee the rigidity of horn 3.
Directly driving horn 3 by gear wheel 622 rotates, and pass through at gear wheel 622 inner installed thrust ball bearings 63, make gear drive not only provide torque for horn 3, and limited the degree of freedom of gear wheel 622 at vertical direction, and provide the anchorage force that makes progress for gear wheel 622 and horn 3, increase the load capacity of horn 3, make that more test device is installed becomes possibility.Established angle contact ball bearing 64 in gear wheel 622, and compress gear wheel 622 by cover plate 65, limited the radially degree of freedom of gear wheel 622 and degree of freedom straight up, be completely fixed the position of gear wheel 622, guarantee that the rotation center of horn 3 is fixed.The lower surface of gear wheel 622 is set to round table-like, bigger installing space to be provided in gear wheel inside and to reduce the quality and the moment of inertia of gear wheel.Can also offer through hole uniformly at gear wheel, with quality and the moment of inertia that reduces gear wheel.
Embodiment two
With reference to Fig. 9
The difference part of present embodiment and embodiment one is: be provided with the rotation gas supply mechanism that can follow horn 3 rotations for the gas piping on each test device air feed and the horn in the through hole 6222 of described gear wheel 622, described rotation gas supply mechanism comprises conducting slip ring 91 that is hollow form and the swivel adapter head 92 that is communicated with gas piping and external air source, and described swivel adapter head 92 is positioned at described conducting slip ring 91 inside;
The Ding Quan of described conducting slip ring 91 and a mount pad 93 are affixed, and described mount pad 93 is fixed in described support 1, the moving-coil of described conducting slip ring 91 and 622 interlocks of described gear wheel; The moving-coil of described conducting slip ring 91 and a rotary flange 94 are affixed, and described rotary flange 94 and described gear wheel 622 are affixed;
Described swivel adapter head 92 decide circle and described mount pad 93 is affixed, the moving-coil of described swivel adapter head 92 is connected with described gas piping;
Described mount pad 93 is positioned at described angular contact ball bearing 64, and cooperates with the inner ring of described angular contact ball bearing 64, and described cover plate 65 and described mount pad 93 are affixed.All the other are identical with embodiment one.
The technical conceive of present embodiment is: by conducting slip ring and swivel adapter head are set, when having realized the rotation air feed to the test device of hydro-extractor inside, external power source and external air source and connecting line thereof, connecting pipe need not rotation, guarantee the hydro-extractor reliable operation.
Embodiment three
With reference to Figure 10,12,13
The difference part of the utility model and embodiment two is: described dynamic balance execution mechanism 4 comprises the dynamic balance execution unit of regulating its transient equilibrium mass 44 respectively along both direction, described dynamic balance execution unit comprises the base 41 that is fixed on the described horn 3, be fixed on the guide rail 42 on the described base 41, the slide block 43 that is slidingly connected with described guide rail 42 and promote described slide block 43 along the reciprocating transient equilibrium gear train of described guide rail, on described transient equilibrium the mass 44 affixed and described slide blocks 43, two adjusting directions of described dynamic balance execution unit are vertical;
Described horn 3 is outer to be provided with the harvester of the periodic vibration response of the horn 3 that collection causes by amount of unbalance, the amplitude that described harvester and can obtain the vibratory response that different aequums causes and phase place and original unbalance and the moving direction of each slide block and the processor 46 of displacement of calculating horn according to described amplitude and phasometer are connected, and the gear train of each performance element is controlled by described processor 46.
Described horn 3 is provided with two dynamic balance execution unit, and the guide rail 42 of two dynamic balance execution unit is vertical mutually.
Described harvester comprises the photoelectric encoder 410 that is arranged in the pinion wheel rotating shaft, the rotating speed of pinion wheel 622 can be converted to pulse sequence signal, whether the data collecting card 47 that is connected with described photoelectric encoder 410 is connected with described data collecting card 47 and responds to horn 3 and vibrate and obtain the vibration transducer 48 of vibration signal and the trigger mechanism that triggers described data collecting card, makes it begin to sample;
With the pulse sequence signal of described photoelectric encoder 410 outputs external clock signal as data collecting card 47, with the vibration signal of described vibration transducer 48 outputs input signal as data collecting card 47, the sampled signal that will obtain after will sampling to described vibration signal according to described external clock signal is as the output signal of described data collecting card 47, and described sampled signal is imported in the described processor 46; Described vibration transducer 48 is a current vortex sensor.
Described trigger mechanism comprises on the guard circle 32 that is fixed in described horn 3, with the magnet steel 491 and the Hall switch 492 that is connected with described data collecting card 47 of guide rail 42 conllinear of arbitrary dynamic balance execution unit; described horn 3 is whenever goed around; described Hall switch 492 meets once with described magnet steel 491, and the described data collecting card 47 of trigger action that described Hall switch 492 sends when meeting with described magnet steel 491 is sampled.
Described transient equilibrium gear train comprises stepper motor 451 and screw mechanism, and leading screw 452 is connected with the output shaft of described stepper motor 451, and feed screw nut 453 and described mass 44 are affixed; The both sides of described leading screw 452 are provided with the limit switch 454 of restriction slide block 43 movings range respectively, the two ends of described leading screw 452 are connected with base by supporting base 455 respectively, be provided with bearing 456 between described supporting base 455 and the described screw mandrel 451, described supporting base 455 is fixed in described base 41; Described stepper motor 451 is controlled by described execution module.All the other are identical with embodiment two.
The technical conceive of present embodiment is: by dynamic balance execution mechanism is installed, obtain the adjustment parameter of dynamic balance execution unit by the vibratory response that is caused by amount of unbalance of analyzing horn on horn, make horn reach transient equilibrium.When the rotating speed of horn and mass distribution changed, the vibratory response of horn also changed accordingly, and processor will reanalyse, calculate vibratory response, re-move the slide block of dynamic balance execution mechanism, make horn reach transient equilibrium again.
The treatment step of the processor in the present embodiment is:
(1), photoelectric encoder converts the current rotating speed of pinion wheel rotating shaft to pulse sequence signal, guarantees that horn whenever goes around, no matter horn rotating speed height, the umber of pulse in the pulse train is the same, the described pulse sequence signal of real time record;
(2), with magnet steel as the mark on the horn, magnet steel and Hall switch send a pulse signal when meeting, the trigger data acquisition card is started working; Regulation is an initial point with the centre of gyration of horn, and the line of magnet steel and initial point is
Axle, the direction from described initial point to described mark is
To, and find according to the right-hand rule
The axle and
To;
(3), hydro-extractor before coming into operation, need obtain the mismachining tolerance curve of horn, and described mismachining tolerance curve is preserved as systematic error; Make horn under extremely low rotating speed, change several commentaries on classics, make the size of the vibration that unbalancing value causes be almost 0, with the external clock signal of current pulse sequence signal as data collecting card, the pulse signal that sends with mark is as the trigger pip of data collecting card, described horn mismachining tolerance curve is carried out integer-period sampled, the revolution that the sampling horn rotates is
, rotor is whenever goed around, and data collecting card is integer-period sampled
Individual, acquisition causes the mismachining tolerance curve of horn
(
), write down described mismachining tolerance curve;
(4), make centrifuge treating in normal operating conditions, obtain first vibration signal that the amount of unbalance of horn causes, with the external clock signal of current pulse sequence signal as data collecting card, the pulse of sending with mark is as the trigger pip of data collecting card, to described first vibration signal sampling, the same in the revolution that the sampling horn rotates and the sampling number of revolution and the step (3), be respectively
With
, obtain first vibration response curve
(
); Remove the mismachining tolerance in first vibration response curve
(
),
Amplitude and phase place that utilization is eliminated undesired signal and obtained first vibration response curve from motion tracking correlation filtering method are respectively:
(5), move respectively
,
The slide block of the dynamic balance execution unit axially, and write down the displacement that two axial top shoes move and be respectively
,
If wherein displacement moves to positive dirction for just representing, for negative indication moves to negative direction;
Obtain second vibration signal that the current amount of unbalance of horn causes, with the external clock signal of current pulse sequence signal as data collecting card, described second vibration signal is sampled as the trigger pip of data collecting card with the pulse that mark sends, the same in the revolution that the sampling horn rotates and the sampling number of revolution and the step (3), be respectively
With
, obtain second vibration response curve
(
); Remove the mismachining tolerance in second vibration response curve
(
), utilize amplitude and the phase place eliminating undesired signal and obtain second vibration response curve from motion tracking correlation filtering method to be respectively:
(6), the amplitude and the phase place of first, second vibration response curve of drawing according to step (4) and step (5), and the moving direction of each slide block and displacement, use influence coefficient method to calculate the original unbalance of horn:
According to described original unbalance, and get its being projected as on two slide block moving directions respectively
,
, promptly
, being derived as direction and distance that the slide block that makes hydro-extractor reach transient equilibrium, each dynamic balance execution mechanism need move, computing formula is as follows:
Wherein
For just represent to
Direction moves, for negative indication to
Direction moves,
For just represent to
Direction moves, for negative indication to
Direction moves;
x,
yBe two displacements that slide block moves in the step (6);
mBe the movable part quality, movable part comprises slide block, feed screw nut, transient equilibrium mass and connects the bolt and nut of usefulness;
(7), make the slide block of each dynamic balance execution mechanism move to the position of requirement; Obtain the current vibratory response of hydro-extractor, judge whether current vibration is in the vibration allowed band, if, the position that then keeps each slide block; If not, then return step (4).
In the step (7), before moving slider, judge whether slide block can be moved to outside the guide rail earlier: if then send warning, and prompting can't be finished transient equilibrium; If not, moving slider then.
Embodiment four
With reference to Figure 11,12,13
The difference part of present embodiment and embodiment three is: be evenly distributed with four dynamic balance execution unit on the described horn 3, the guide rail conllinear of two relative dynamic balance execution unit, the moving direction of slide block are opposite; The guide rail of two adjacent dynamic balance execution unit is vertical mutually.All the other are identical with embodiment three.
Embodiment five
The difference part of the utility model and embodiment three is: the pulse signal input one of described photoelectric encoder 410 outputs detects in the frequency converter 10 of horn rotating speed, be preset with the rated rotational frequency of horn in the described frequency converter 10, described drive motor 2 is controlled by described frequency converter 10.All the other are identical with embodiment three.
The described content of this instructions embodiment only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (10)
1. the hydro-extractor that is used for multi-parameter complex test environment, comprise support, be fixed in the drive motor on the described support, the horn of carrying multi-parameter complex test device, with with the transmission of power of described drive motor gear train to described horn, be fixed on the static equilibrium mass on the horn and be installed on the described horn, realize the dynamically balanced dynamic balance execution mechanism of self-adaptation;
It is characterized in that: described horn is disc, is provided with web on the described horn equably, and described complex parameter test device is installed on the described web;
Described gear train comprises tape handler that is connected with the output shaft of described drive motor and the gear mechanism that is connected with described horn; Described gear mechanism comprises and coaxial pinion wheel of driven pulley and the gear wheel affixed with described horn;
The upper surface of described gear wheel is connected with the underrun bolt of described horn, the lower surface of described gear wheel is provided with and holds a ring groove that the thrust ball bearing of axially mounting can be provided for gear wheel, described gear wheel is connected with described support by described thrust ball bearing, and is gapped between the lower surface of described gear wheel and the described support;
The center of described gear wheel is provided with manhole, the bottom of described through hole extends internally and forms a circle and be used to install one and can limit the radially degree of freedom of described gear wheel and the step of the angular contact ball bearing of degree of freedom straight up, and that the top of described angular contact ball bearing is provided with is affixed with described support, to compress the cover plate of described angular contact ball bearing;
Described drive motor and gear train are installed on described base inner.
2. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 1 is characterized in that: the upper surface of described gear wheel is provided with the location annular boss, and the bottom of described horn is provided with the annular groove adaptive with described boss.
3. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 2, it is characterized in that: be fixed with on the described support with described horn and be connected, enter the gland bonnet in the gear train, be connected for rotating labyrinth sealing between described gland bonnet and the described horn to prevent dust;
The outer rim of described horn is fixed with the guard circle that the device that prevents to be installed on horn flies out, and is distributed with the floor that guarantees its rigidity on the inner periphery of described guard circle equably; Described floor and described horn are affixed;
Described support is the round table-like of hollow, described thrust ball bearing all is connected with the top panel of support with mount pad, the bottom of described support is provided with the adjustment piece that guarantees support reference for installation level, be provided with the support floor on the circumference of described support equably, the support wall between the adjacent support floor is provided with the opening of being convenient to installation.
4. as the described hydro-extractor that is used for multi-parameter complex test environment of one of claim 1-3, it is characterized in that: be provided with the rotation gas supply mechanism that to follow the horn rotation for the gas piping on each test device air feed and the horn in the through hole of described gear wheel, described rotation gas supply mechanism comprises conducting slip ring and the gas piping on the connection horn and the swivel adapter head of external air source that is hollow form, and described swivel adapter head is positioned at described conducting slip ring inside;
The Ding Quan of described conducting slip ring and a mount pad are affixed, and described mount pad is fixed on the described support, the moving-coil of described conducting slip ring and the interlock of described gear wheel; The moving-coil of described conducting slip ring and a rotary flange are affixed, and described rotary flange and described gear wheel are affixed;
Described swivel adapter head decide circle and described mount pad is affixed, the moving-coil of described swivel adapter head is connected with described gas piping;
Described mount pad is positioned at described angular contact ball bearing, and cooperates with the inner ring of described angular contact ball bearing, and described cover plate and described mount pad are affixed.
5. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 4, it is characterized in that: described dynamic balance execution mechanism comprises the dynamic balance execution unit of regulating its transient equilibrium mass respectively along both direction, described dynamic balance execution unit comprises the base that is fixed on the described horn, be fixed on the guide rail on the described base, the slide block that is slidingly connected with described guide rail and promote described slide block along the reciprocating transient equilibrium gear train of described guide rail, on the affixed and described slide block of described transient equilibrium mass, two adjusting directions of described dynamic balance execution unit are vertical;
Described horn is provided with the harvester of the periodic vibration response of the horn that collection causes by amount of unbalance outward, the amplitude that described harvester and can obtain the vibratory response that different aequums causes and phase place and original unbalance and the moving direction of each slide block and the processor of displacement of calculating horn according to described amplitude and phasometer are connected the processor under described dynamic balance execution unit is controlled by.
6. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 5 is characterized in that: described horn is provided with two dynamic balance execution unit, and the guide rail of two dynamic balance execution unit is vertical mutually.
7. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 5 is characterized in that: be evenly distributed with four dynamic balance execution unit on the described horn, the guide rail conllinear of two relative dynamic balance execution unit, the moving direction of slide block are opposite; The guide rail of two adjacent dynamic balance execution unit is vertical mutually.
8. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 7, it is characterized in that: described harvester comprises the photoelectric encoder that is arranged in institute's pinion wheel rotating shaft, the rotating speed of pinion wheel can be converted to pulse sequence signal, the data collecting card that is connected with described photoelectric encoder is with described data acquisition card connection and respond to the trigger mechanism whether horn vibrates and obtain the vibration transducer of vibration signal and trigger described data collecting card, make it begin to sample;
With the pulse signal of described photoelectric encoder output clock signal as data collecting card, with the vibration signal of described vibration transducer output input signal as data collecting card, the sampled signal that will obtain after will sampling to described vibration signal according to described external clock signal is as the output signal of described data collecting card, and described sampled signal is imported in the described processor;
Described vibration transducer is a current vortex sensor;
Described trigger mechanism comprise on the guard circle that is fixed in described horn magnet steel and with the Hall switch of described data acquisition card connection; described horn is whenever goed around; described Hall switch and described magnet steel meet once, the described data collecting card of trigger action that described Hall switch and described magnet steel send when meeting.
9. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 8, it is characterized in that: described transient equilibrium gear train comprises stepper motor and screw mechanism, leading screw is connected with the output shaft of described stepper motor, and feed screw nut and described mass are affixed; The both sides of described leading screw are provided with the limit switch of restriction slide block moving range respectively, the two ends of described leading screw are connected with base by supporting base respectively, be provided with bearing between described supporting base and the described screw mandrel, described supporting base is fixed in described base; Described stepper motor is controlled by described processor.
10. the hydro-extractor that is used for multi-parameter complex test environment as claimed in claim 9, it is characterized in that: the pulse signal input one of described photoelectric encoder output detects in the frequency converter of horn rotating speed, be preset with the rated rotational frequency of horn in the described frequency converter, described drive motor is controlled by described frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202783268U CN201780187U (en) | 2010-08-02 | 2010-08-02 | Centrifugal machine for environment of multi-parameter composite test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202783268U CN201780187U (en) | 2010-08-02 | 2010-08-02 | Centrifugal machine for environment of multi-parameter composite test |
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| Publication Number | Publication Date |
|---|---|
| CN201780187U true CN201780187U (en) | 2011-03-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915653A (en) * | 2010-08-02 | 2010-12-15 | 浙江大学 | Centrifuge used in multi-parameter complex test environment |
| CN105750095A (en) * | 2016-04-06 | 2016-07-13 | 温州医科大学附属第二医院育英儿童医院 | Self-balancing centrifugal machine |
| CN112893889A (en) * | 2021-02-04 | 2021-06-04 | 广州市昊志机电股份有限公司 | Main shaft and machine tool |
-
2010
- 2010-08-02 CN CN2010202783268U patent/CN201780187U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915653A (en) * | 2010-08-02 | 2010-12-15 | 浙江大学 | Centrifuge used in multi-parameter complex test environment |
| CN105750095A (en) * | 2016-04-06 | 2016-07-13 | 温州医科大学附属第二医院育英儿童医院 | Self-balancing centrifugal machine |
| CN112893889A (en) * | 2021-02-04 | 2021-06-04 | 广州市昊志机电股份有限公司 | Main shaft and machine tool |
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Granted publication date: 20110330 Effective date of abandoning: 20111228 |