CN204911830U - Novel static trim of centrifugal separator device - Google Patents

Novel static trim of centrifugal separator device Download PDF

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Publication number
CN204911830U
CN204911830U CN201520715025.XU CN201520715025U CN204911830U CN 204911830 U CN204911830 U CN 204911830U CN 201520715025 U CN201520715025 U CN 201520715025U CN 204911830 U CN204911830 U CN 204911830U
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China
Prior art keywords
trim
self
upper rotary
motor
pinion
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Withdrawn - After Issue
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CN201520715025.XU
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Chinese (zh)
Inventor
陈磊
洪建忠
张建全
蒋春梅
赵世鹏
成永博
李心耀
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General Engineering Research Institute China Academy of Engineering Physics
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General Engineering Research Institute China Academy of Engineering Physics
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Abstract

The utility model discloses a novel static trim of centrifugal separator device, including the trim frame, the lead screw, remove the balancing weight, including a motor, an end cap, a controller, and a cover plate, rotary actuator and walking nut, the first end of trim frame is equipped with the connecting hole, fixed balancing weight is installed to the second end of trim frame, the both sides upper surface of trim frame is equipped with the guide rail respectively and two guide rails are parallel to each other, it installs respectively on two guide rails and can remove to remove the both ends of balancing weight, the motor is installed on removing the balancing weight, the pivot of motor is connected with rotary actuator's input, rotary actuator's output and walking nut are connected, nut emboitement is on the lead screw in the walking, both ends difference fixed mounting in the both ends of trim frame of lead screw. The utility model discloses an adopt to remove the mode of counter weight and fixed counter weight combination, have that the modularized design is easily processed, the trim scope is big, application scope wide, easy operation's advantage.

Description

The static balancing device of a kind of Novel centrifuge
Technical field
The utility model relates to the static balancing device of a kind of centrifuge, particularly relates to the static balancing device of Novel centrifuge that a kind of modularized design, trim scope are large, simple to operate.
Background technology
Static balancing device, as the important component part of centrifuge, directly affects the stability of centrifuge running, security and service life.At present, some centrifuge domestic adopts length arm configuration, and long end is used for installation test part, and short end is equal to ensure two end moments for installing large quality counterweight, and galianconism and counterweight are exactly static balancing device.Mostly adopt the trim mode of fixed weight in the centrifuge of this kind of length arm configuration, be namely principle with equalising torque, the counterweight of extra fine quality be arranged on galianconism end to realize trim.Because balancing weight specification is limited, the combination of balancing weight is not enough to cover all wt scope, so trim inaccuracy; In addition, when operating, need the lifting carrying out balancing weight and the installment work of manpower repeatability, so trim operation relative complex.
The centrifuge of some length arm configuration have employed the higher electronic mobile trim mode of automaticity.The electronic mobile trim structure of domestic state-of-the-art centrifuge, its maximum trim scope is 6t (test specimen mass range).It has employed synchronous belt with trapezoid teeth drive nut and rotates, more secondary by nut screw threads, is that translational motion finally realizes trim by convert rotational motion.This electric structure greatly improves the accuracy of trim, reduce the complexity of operation, but this structure adopts length, and longer ring-shaped synchronous belt drives two nuts simultaneously, easily cause Timing Belt unbalance stress, add the probability that Timing Belt damages, need to regularly replace Timing Belt, and it is comparatively complicated to change the operation of longer Timing Belt, adds artificial and material cost; In addition, namely the leading screw moving trim structure due to this Timing Belt is pivoted arm circular cross-section pull strap, therefore can only to be applied to pivoted arm pull strap be in the centrifuge of circular cross-section, so range of application is limited.
Utility model content
The static balancing device of Novel centrifuge that the purpose of this utility model is just to provide to solve the problem a kind of modularized design, trim scope large, simple to operate.
The utility model is achieved through the following technical solutions above-mentioned purpose:
The static balancing device of a kind of Novel centrifuge, comprise trim framework, the first end of described trim framework is provided with the connecting hole for being connected with the pivoted arm of described centrifuge, second end of described trim framework is provided with fixed weight hole, in described fixed weight hole, fixed weight block is installed, the static balancing device of described Novel centrifuge also comprises leading screw, self-balanced upper rotary, motor, rotary actuator and walking nut, the both sides upper surface of described trim framework is respectively equipped with guide rail and two described guide rails are parallel to each other, the two ends of described self-balanced upper rotary are installed on two described guide rails respectively also can move, described motor is installed in described self-balanced upper rotary, the rotating shaft of described motor is connected with the input of described rotary actuator, the output of described rotary actuator is connected with described walking nut, described walking nut sleeve is loaded on described screw mandrel, the two ends of described leading screw are fixedly installed in the two ends of described trim framework respectively.
In said structure, trim framework is as the installation matrix of whole balancing device; Fixed weight block is installed on the one end away from its connecting hole on trim framework, is the basic counterweight of balancing device; Self-balanced upper rotary do on leading screw as required away from or near the rectilinear motion of connecting hole, thus realize the object of the counterweight changing whole balancing device, be specially: when self-balanced upper rotary is away from connecting hole, be equivalent to the pivot of center of gravity away from centrifuge pivoted arm of whole balancing device, namely the counterweight adding whole balancing device is equivalent to, otherwise, self-balanced upper rotary is when connecting hole, be equivalent to the pivot of center of gravity near centrifuge pivoted arm of whole balancing device, be namely equivalent to the counterweight decreasing whole balancing device; The movement that motor is self-balanced upper rotary provides power; Rotary actuator and walking nut screw connection leading screw realize the rotary power of motor being carried out transmission and being converted into the object of the rectilinear motion of self-balanced upper rotary.
As preferably, described rotary actuator comprises small pulley, Timing Belt, large belt wheel, regulating wheel, pinion, pinion bearing, gear wheel and gearwheel bearing, described small pulley is set in outside the rotating shaft of described motor, described small pulley is connected by described Timing Belt with described large belt wheel, described regulating wheel to be installed on outside described Timing Belt and for tensioning Timing Belt, described pinion is located at described large belt wheel side and coaxial and be installed in described self-balanced upper rotary by described pinion bearing, described gear wheel and described pinion are connected with a joggle, it is outer and be installed in described self-balanced upper rotary by described gearwheel bearing that described gear wheel is set in described walking nut.In said structure, small pulley and large belt wheel achieve synergy of once slowing down, and pinion and gear wheel achieve secondary speed-reducing synergy; In practical application, more or less deceleration Synergistic structure can also be adopted, by the convert rotational motion of motor be the rectilinear motion of self-balanced upper rotary and the condition that meets the demands of speed and power as long as meet.
In order to improve the stationarity of transmission process and be convenient to install rotary actuator, described leading screw, described walking nut, described gear wheel and described gearwheel bearing are two, described self-balanced upper rotary is provided with the side through hole laying respectively at described centre bore both sides with the homoaxial centre bore of described leading screw and two, described pinion bearing is installed in described centre bore, two described gearwheel bearings are installed in two described side through hole respectively, two described leading screws to be set with in two described walking nuts and through two described side through hole, described small pulley, described Timing Belt and described large belt wheel are all placed in the same side of described self-balanced upper rotary.
For the ease of reliably installing self-balanced upper rotary, the two ends of described self-balanced upper rotary are respectively equipped with breach, two sides of described trim framework are placed in two described breach respectively, the upper inside walls of described breach is provided with positive stop strip, the lower surface of described positive stop strip is provided with limited impression, and two described positive stop strips are placed on two described guide rails respectively by the described limited impression of correspondence.
The beneficial effects of the utility model are:
The utility model is by adopting the mode of mobile counterweight and fixed weight combination, and have the advantage that modularized design is easy to process, trim scope is large, applied widely, simple to operate, imbody is as follows:
1, adopt fixed weight block and self-balanced upper rotary to realize overall counterweight, and fixed weight is located at the position of the pivot away from centrifuge pivoted arm, make trim scope larger, can 8t be reached;
2, owing to employing mobile counterweight structure, therefore trim operation is more simple, and trim precision is high;
3, because Timing Belt only drives a belt wheel namely to drive large belt wheel by small pulley, therefore Timing Belt changes probability decline, changes also more convenient;
4, adopt modular structure, be both convenient to processing assembling, do not limited again centrifuge pivoted arm section form, by connecting hole, this static balancing device directly can be applied on the centrifuge of any length arm, add the scope of application.
Accompanying drawing explanation
Fig. 1 is the stereogram of the static balancing device of Novel centrifuge described in the utility model;
Fig. 2 is the stereogram after trim frame installation fixed weight block described in the utility model;
Fig. 3 is the stereogram of self-balanced upper rotary described in the utility model;
Fig. 4 is the stereogram of motor described in the utility model, rotary actuator, walking nut and leading screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As Figure 1-Figure 4, the static balancing device of Novel centrifuge described in the utility model comprises trim framework 1, leading screw 5, self-balanced upper rotary 2, motor 3, rotary actuator and walking nut 48, the first end of trim framework 1 is provided with the connecting hole 12 for being connected with the pivoted arm (not shown) of centrifuge, second end of trim framework 1 is provided with fixed weight hole 13, fixed weight block 4 is installed in fixed weight hole 13, the both sides upper surface of trim framework 1 is respectively equipped with guide rail 11 and two guide rails 11 are parallel to each other, the two ends of self-balanced upper rotary 2 are installed on two guide rails 11 respectively also can move, motor 3 is installed in self-balanced upper rotary 2, self-balanced upper rotary 2 is provided with the side through hole 25 that with leading screw 5 homoaxial centre bore 26 and two lay respectively at centre bore 26 both sides, described rotary actuator comprises small pulley 41, Timing Belt 42, large belt wheel 44, regulating wheel 45, pinion 46, pinion bearing 47, gear wheel 43 and gearwheel bearing 49, small pulley 41 is set in outside the rotating shaft of motor 3, small pulley 41 is connected by Timing Belt 42 with large belt wheel 44, regulating wheel 45 be installed on Timing Belt 42 outside and for tensioning Timing Belt 42, pinion 46 is located at the side of large belt wheel 44 and coaxial and be installed in the centre bore 26 in self-balanced upper rotary 2 by pinion bearing 47, two gear wheels 43 lay respectively at the both sides of pinion 46 and are connected with a joggle with pinion 46 respectively, two gear wheels 43 are set with in two walking nuts 48 outer and be installed in the side through hole 25 in self-balanced upper rotary 2 respectively by two gearwheel bearings 49, two walking nuts 48 are set with on two screw mandrels 5, the two ends of two leading screws be parallel to each other 5 are fixedly installed in the two ends of trim framework 1 respectively, two leading screws 5 are each passed through two side through hole 25, small pulley 41, Timing Belt 42 and large belt wheel 44 are all placed in the same side of self-balanced upper rotary 2, the two ends of self-balanced upper rotary 2 are respectively equipped with breach 24, two sides of trim framework 1 are placed in two breach 24 respectively, the upper inside walls of breach 24 is provided with positive stop strip 23, the lower surface of positive stop strip 23 is provided with limited impression (unmarked in figure), and two positive stop strips 23 are placed on two guide rails 11 respectively by the limited impression of correspondence.
Above-mentioned small pulley 41 and the large and small of large belt wheel 44 are relative concepts, and pinion 46 and the large and small of gear wheel 43 are relative concepts, and pinion bearing 47 and the large and small of gearwheel bearing 49 are relative concepts; Pinion bearing 47 and gearwheel bearing 49 can use thrust bearing.
The motor mount 31 for mounted motor 3 is also show in Fig. 1 and Fig. 4; Also show in Fig. 2 and be positioned on described trim framework 1 and leading screw installing hole 14 for installing leading screw 5; Also show in Fig. 3 and to be positioned on described trim framework 1 and for the installation deep gouge 21 of mounted motor mount pad 31 and the mounting groove 22 for installing regulating wheel 45.
As Figure 1-Figure 4, during application, this balancing device is installed on the pivoted arm (long-armed or disconnected arm) of centrifuge by the connecting hole 12 on trim framework 1, if need to increase counterweight, then starter motor 3 makes it rotate forward, motor 3 is successively by driving small pulley 41, Timing Belt 42, large belt wheel 44, pinion 46 and gear wheel 43 drive walking nut 48 to rotate forward, because leading screw 5 maintains static, so walking nut 48 rotates forward the rectilinear motion that can drive from doing on leading screw 5 away from the connecting hole 12 on trim framework 1, thus drive whole transmission device and self-balanced upper rotary 2 away from connecting hole 12, be equivalent to the pivot of center of gravity away from centrifuge pivoted arm of whole balancing device, namely the counterweight adding whole balancing device is equivalent to, otherwise, if need to reduce counterweight, then starter motor 3 makes it reverse, motor 3 is successively by driving small pulley 41, Timing Belt 42, large belt wheel 44, pinion 46 and gear wheel 43 drive walking nut 48 to reversely rotate, because leading screw 5 maintains static, so the reverse rotation of walking nut 48 can drive the rectilinear motion from making the connecting hole 12 on trim framework 1 on leading screw 5, thus drive whole transmission device and self-balanced upper rotary 2 near connecting hole 12, be equivalent to the pivot of center of gravity near centrifuge pivoted arm of whole balancing device, namely the counterweight reducing whole balancing device is equivalent to.
Illustrate: because two gear wheels 43 are driven by same pinion 46, so the direction of rotation of two walking nuts 48 is contrary, in order to make the rectilinear movement direction of two nuts 48 of walking identical, then need to make that the internal thread direction of two nuts 48 of walking is contrary and the external screw thread direction of two leading screws 5 is identical, or making two to walk, the internal thread direction of nuts 48 is identical and the external screw thread direction of two leading screws 5 is contrary.This is the mode being easy to expect and realize.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technical scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.

Claims (4)

1. the static balancing device of Novel centrifuge, comprise trim framework, the first end of described trim framework is provided with the connecting hole for being connected with the pivoted arm of described centrifuge, it is characterized in that: the second end of described trim framework is provided with fixed weight hole, in described fixed weight hole, fixed weight block is installed, the static balancing device of described Novel centrifuge also comprises leading screw, self-balanced upper rotary, motor, rotary actuator and walking nut, the both sides upper surface of described trim framework is respectively equipped with guide rail and two described guide rails are parallel to each other, the two ends of described self-balanced upper rotary are installed on two described guide rails respectively also can move, described motor is installed in described self-balanced upper rotary, the rotating shaft of described motor is connected with the input of described rotary actuator, the output of described rotary actuator is connected with described walking nut, described walking nut sleeve is loaded on described screw mandrel, the two ends of described leading screw are fixedly installed in the two ends of described trim framework respectively.
2. the static balancing device of Novel centrifuge according to claim 1, it is characterized in that: described rotary actuator comprises small pulley, Timing Belt, large belt wheel, regulating wheel, pinion, pinion bearing, gear wheel and gearwheel bearing, described small pulley is set in outside the rotating shaft of described motor, described small pulley is connected by described Timing Belt with described large belt wheel, described regulating wheel to be installed on outside described Timing Belt and for tensioning Timing Belt, described pinion is located at described large belt wheel side and coaxial and be installed in described self-balanced upper rotary by described pinion bearing, described gear wheel and described pinion are connected with a joggle, it is outer and be installed in described self-balanced upper rotary by described gearwheel bearing that described gear wheel is set in described walking nut.
3. the static balancing device of Novel centrifuge according to claim 2, it is characterized in that: described leading screw, described walking nut, described gear wheel and described gearwheel bearing are two, described self-balanced upper rotary is provided with the side through hole laying respectively at described centre bore both sides with the homoaxial centre bore of described leading screw and two, described pinion bearing is installed in described centre bore, two described gearwheel bearings are installed in two described side through hole respectively, two described leading screws to be set with in two described walking nuts and through two described side through hole, described small pulley, described Timing Belt and described large belt wheel are all placed in the same side of described self-balanced upper rotary.
4. the static balancing device of the Novel centrifuge according to claim 1,2 or 3, it is characterized in that: the two ends of described self-balanced upper rotary are respectively equipped with breach, two sides of described trim framework are placed in two described breach respectively, the upper inside walls of described breach is provided with positive stop strip, the lower surface of described positive stop strip is provided with limited impression, and two described positive stop strips are placed on two described guide rails respectively by the described limited impression of correspondence.
CN201520715025.XU 2015-09-15 2015-09-15 Novel static trim of centrifugal separator device Withdrawn - After Issue CN204911830U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105080734A (en) * 2015-09-15 2015-11-25 中国工程物理研究院总体工程研究所 Novel centrifugal machine static balancing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105080734A (en) * 2015-09-15 2015-11-25 中国工程物理研究院总体工程研究所 Novel centrifugal machine static balancing device
CN105080734B (en) * 2015-09-15 2017-07-04 中国工程物理研究院总体工程研究所 A kind of centrifuge static state balancing device

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20151230

Effective date of abandoning: 20170704

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