CN206847884U - Balance the device and Centrifugal vibration testing equipment of elastic moving component centrifugal force - Google Patents

Balance the device and Centrifugal vibration testing equipment of elastic moving component centrifugal force Download PDF

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Publication number
CN206847884U
CN206847884U CN201720222826.1U CN201720222826U CN206847884U CN 206847884 U CN206847884 U CN 206847884U CN 201720222826 U CN201720222826 U CN 201720222826U CN 206847884 U CN206847884 U CN 206847884U
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China
Prior art keywords
moving component
centrifugal
centrifugal force
elastic
mandrel
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CN201720222826.1U
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Chinese (zh)
Inventor
仝宁可
王丽娟
顾红喜
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Suzhou Dongling Vibration Test Instrument Co Ltd
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Suzhou Dongling Vibration Test Instrument Co Ltd
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Abstract

The utility model discloses a kind of device for balancing elastic moving component centrifugal force, balanced controls including elastic movement system and for balancing its centrifugal force, elastic movement system includes two elastic movement mechanisms, the radial line of the two relative centrifugal field is symmetrical arranged, each elastic movement mechanism includes moving component and elastomeric element, balanced controls are bascule structure, and both ends are connected with two moving components of two elastic movement mechanisms respectively;In two moving components, a center position to asymptotic centrifugal field is moved, and another is moved to the gradually center position away from psychological field, and centrifugal force suffered by pulling force suffered by every one end of balanced controls and connected moving component is equal in magnitude, in the opposite direction.The utility model can effectively balance the centrifugal force of the moving component in elastic kinematic system in centrifugal field, and along rotary table top when diametrically reciprocating, its center equilbrium position is not influenceed and changed guarantee moving component by moving component centrifugal force.The invention also discloses a kind of Centrifugal vibration testing equipment.

Description

Balance the device and Centrifugal vibration testing equipment of elastic moving component centrifugal force
Technical field
The utility model belongs to mechanical environment field, and in particular to balances the method, apparatus of elastic moving component centrifugal force And Centrifugal vibration equipment.
Background technology
The elastic movement system to be worked in centrifugal field, moving component inevitably it is subject to centrifugal forces (such as Shown in formula 1), when edge moves reciprocatingly the elastic movement system radially of the axis of rotation in centrifugal field, with centrifugal field The difference of rotational angular velocity size, the size of the centrifugal force suffered by moving component are also different.Due to by moving component centrifugal force Effect, spring will be by the centrifugation force compresses, until reach new equalization point, i.e. elastic restoring force and suffered centrifugal force Balance.And because spring has been compressed by (as shown in Equation 2) at new equilbrium position, therefore what it can guarantee that in centrifugal field Reciprocating work shift will be affected, work shift during less than without centrifugal field (referring to shown in Fig. 1 and Fig. 2), it is seen then that The elastic system device to be worked in centrifugal field, because the centrifugal force by its moving component is influenceed, not only change fortune The reciprocating center equilbrium position of dynamic component, and also reduce the reciprocating movement displacement of its normal work.
Formula 1 and formula 2 are as follows:
F1=-mr ω2…………………(1)
M-heavy moving parts
R-radius of turn
ω-angular velocity of rotation
F1=-kx ... ... ... ... (2)
K-spring rate
X-displacement variable.
The content of the invention
In order to solve the above technical problems, the purpose of this utility model is to provide a kind of elastic moving component centrifugal force of balance Device, the moving component of elastic movement system along rotary table top when diametrically reciprocating, do not transported by its center equilbrium position The influence of dynamic component centrifugal force and change, its displacement stroke is not influenceed and reduced by moving component centrifugal force.
To achieve the above object, the utility model provides following technical scheme:One kind balances elastic moving component centrifugation The device of power, including:
- elastic movement system, it includes two elastic movement mechanisms, and the radial line of the two relative centrifugal field is symmetrical arranged, each The elastic movement mechanism includes moving component and elastomeric element, one end fixed setting of the elastomeric element, the motion portion Part is connected and moved back and forth with the other end of the elastomeric element;
- balanced controls, it is bascule structure, both ends two moving components with the two elastic movements mechanism respectively Connection;
Wherein, in described two moving components, a center position to asymptotic centrifugal field moves, and another is to gradually remote The center position motion of psychological field, centrifugal force suffered by pulling force suffered by every one end of the balanced controls and connected moving component It is equal in magnitude, in the opposite direction.
Further, the barycenter of the moving component is located in the plane of movement at the both ends of the balanced controls.
Further, the moving component moves along the radial line direction parallel to centrifugal field.
Further, the balanced controls include fixed pulley group and rope, and the fixed pulley group includes one or more fixed Pulley, the mandrel fixed setting of the fixed pulley, the rope bypass the fixed pulley, and the fixed pulley can be in rope frictional force Under rotate about center and make spinning motion, the both ends of the rope are connected with two moving components respectively, the rope Centrifugal force suffered by pulling force suffered by per one end and connected moving component is equal in magnitude, in the opposite direction.
Further, the fixed pulley includes rolling bearing and roller housing, and the mandrel is multi-diameter shaft, the rolling bearing It is arranged and is installed on the spindle nose of the mandrel, the roller housing interference is installed on the rolling bearing, and the rolling bearing leans on One sleeve is set between the inner ring of shaft shoulder one end and the shaft shoulder of the mandrel of the nearly mandrel, and the rolling bearing is away from described The outer ring of shaft shoulder one end of mandrel is relatively fixed with the roller housing by back-up ring, axle of the rolling bearing away from the mandrel The inner ring of shoulder one end is resisted against on the sleeve of the end cap of a spindle nose for being fixedly connected on the mandrel.
Further, the roller sleeve is provided with gap between the shaft shoulder of the mandrel and the end cap respectively.
Further, the direction of motion of two moving components and the centrifugal field it is radial parallel when, the balance The radial line of centrifugal field described in the device infinite approach of elastic movement part centrifugal force, its overall barycenter be infinitely close to perpendicular to from In the plane of psychological field and process radial line.
Further, the device of the described elastic moving component centrifugal force of balance also has additional counterweight so that the balance The overall heart of the device of elastic movement part centrifugal force and counterweight composition is infinitely close to the Pivot axle of centrifugal field.
The utility model also provides another technical scheme:A kind of Centrifugal vibration testing equipment, including centrifuge and such as Upper described device;
The centrifuge is provided with rotary table top, and it forms the centrifugal field;
Each elastic movement mechanism also includes magnetic circuit component, and the magnetic circuit component forms stable stationary magnetic field, institute State moving component to be connected on the elastomeric element and use coil drive, the coil suspension is formed in the magnetic circuit component The magnetic line of force of the stationary magnetic field is cut in annulus gap with alternation, the moving component includes exciting rod, and the exciting rod is also It is connected with test specimen erecting bed.The coil inputs inverse current to realize the incorgruous motion of moving component.
Further, the exciting rod is provided with external thread section, and the external thread section is provided with a circumferential recess, the circumference Nut is threaded with respectively on the external thread section of groove both sides, close to the outer wall and nut of the external thread section of the balanced controls Inwall offer the axial wire casing connected with the circumferential recess respectively.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art:The utility model The method and apparatus of the disclosed elastic moving component centrifugal force of balance, can effectively balance the elastic kinematic system in centrifugal field The centrifugal force of middle moving component, ensure moving component along rotary table top when diametrically reciprocating, its center equilbrium position not by The influence of moving component centrifugal force and change, its displacement stroke is not influenceed and reduced by moving component centrifugal force, ensure elasticity The center of moving component in kinematic system, so as to ensure the reciprocating centre bit of moving component in the elastic movement system Put and its mechanical trip.
Brief description of the drawings
Fig. 1 is the operating diagram of elastic movement part when the rotary table top of centrifuge does not work;
Fig. 2 is the operating diagram of elastic moving component in centrifugal field when the rotary table top of centrifuge works;
Fig. 3 discloses a kind of knot of the device of the centrifugal force of the elastic moving component of balance in embodiment for the utility model Structure schematic diagram;
Fig. 4 is the device that the utility model discloses the centrifugal force for balancing elastic moving component in another embodiment Structural representation;
Fig. 5 is the structural representation of balanced controls disclosed in the utility model;
Fig. 6 is the front view of Centrifugal vibration testing equipment disclosed in the utility model;
Fig. 7 is the top view of Centrifugal vibration testing equipment disclosed in the utility model;
Fig. 8 is the structural representation of vibration machine disclosed in the utility model;
Fig. 9 is the partial schematic diagram of exciting rod disclosed in the utility model.
Wherein, 11, rotary table top;20th, elastic movement mechanism;21st, moving component;22nd, elastomeric element;30th, balanced controls; 31st, fixed pulley;31-1, rolling bearing;31-2, roller housing;31-3, mandrel;31-4, sleeve;31-5, back-up ring;31-6, end cap; 32nd, rope;40th, counterweight;51st, pivoted arm;52nd, support;61st, shell;62nd, exciting rod;63rd, pendulum spring;64th, magnetic circuit component;65、 Coil;66th, guiding parts;67th, circumferential recess;68th, nut;69th, axial wire casing;70th, test specimen erecting bed;80th, balanced controls; 90th, counterweight;100th, test specimen.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below For for illustrating a preferred embodiment of the present utility model, but it is not limited to the scope of the utility model.
Embodiment one:Referring to Fig. 3 and Fig. 5, as shown in legend therein:
A kind of device for balancing elastic moving component centrifugal force, it is on the rotary table top 11 of a centrifuge, turntable Face 11 rotates about center and makees spinning motion, and said apparatus includes Liang Ge elastic movements mechanism 20 and a balanced controls 30, and two Individual elastic movement mechanism 20 is arranged on rotary table top 11 and the radial line of relatively above-mentioned pivot is symmetrical arranged, each elasticity Motion 20 includes moving component 21 and elastomeric element 22, and one end of elastomeric element 22 rotates against table top 11 and is fixedly installed, The other end of elastomeric element 22 is connected with moving component 21, moving component 21 its guiding parts guide effect lower edge parallel to The direction of radial line is reciprocating, and in two moving components 21, the direction at a center to asymptotic rotary table top 11 is moved, separately One direction to the gradually center of remote rotary table top 11 is moved, and balanced controls 30 include fixed pulley 31 and rope 32, fixed pulley 31 Mandrel rotate against table top 11 and be fixedly installed, rope 32 around fixed pulley 31 and drive fixed pulley 31 rotate about center make from Transhipment is dynamic, and the both ends of rope 32 are connected with two moving components 21 respectively, pulling force suffered by every one end of rope 32 be connected thereto Moving component 21 suffered by centrifugal force it is equal in magnitude, in the opposite direction.
The radial line of the device infinite approach centrifugal field of elastic moving component centrifugal force is balanced, its overall barycenter is infinitely close to Perpendicular to centrifugal field and by the plane of radial line.
Counterweight 40 or the above-mentioned balance elasticity moving component centrifugal force of another identical are additionally provided with rotary table top 11 Device so that balance elastic moving component centrifugal force device and the counterweight composition the overall heart infinitely close to centrifugation The Pivot axle of field.
By apparatus above it can be seen that:To balance the external force of the moving component centrifugal force of an elastic movement mechanism From in the pulling force of rope, and the pulling force of the rope comes from the centrifugation suffered by the moving component of another elastic movement mechanism Power.Because the structure of Liang Zu elastic movements mechanism is identical, the quality of its moving component is also identical, therefore its moving component The size moment of caused centrifugal force is identical, and rotational angular velocity change is not influenceed in by centrifugal field, therefore two moving components Centrifugal force caused by each can balance counteracting each other by the idler wheel mechanism.
Said apparatus, moving component can be balanced in elastic kinematic system very well in centrifugal force caused by centrifugal field, not only The influence of the reciprocating center equilbrium position change of moving component caused by centrifugal force is eliminated, and ensure that moving component Normal work shift, so as to ensure that the safe and reliable operation of elastic system device.
Referring to Fig. 4, as shown in legend therein, moving component 21 is under the guide effect of its guiding parts along the side of radial line To reciprocating, in two moving components 21, the direction at a center to asymptotic rotary table top 11 is moved, and another is to gradually The direction motion at the center of remote rotary table top 11.
In a kind of embodiment, fixed pulley 31 includes rolling bearing 31-1 and roller housing 31-2, and mandrel 31-3 is multi-diameter shaft, Rolling bearing 31-1, which is arranged, to be installed on mandrel 31-3 spindle nose, and roller housing 31-2 interference is installed on rolling bearing 31-1, rolling Dynamic bearing 31-1 sets a sleeve 31-4 between the inner ring of mandrel 31-3 shaft shoulder one end and the mandrel 31-3 shaft shoulder, rolls The outer ring of the shaft shoulder one end of bearing 31-1 away from mandrel 31-3 is relatively fixed with roller housing 31-2 by back-up ring 31-5, rolling bearing The inner ring of the shaft shoulder one end of 31-1 away from mandrel 31-3 is resisted against the end cap 31-6's of a spindle nose for being fixedly connected on mandrel 31-3 On sleeve.
Roller housing 31-2 both ends of the surface do not contact with mandrel the 31-3 shaft shoulder and end cap 31-6, so when rope 32 is by outer In the presence of power, due to the influence of frictional resistance between rope 32 and roller housing 31-2, roller housing 31-2 and rope 32 can together Rotated relative to mandrel 31-3.The structure of above-mentioned balanced controls not only reduce due to rope 32 and roller housing 31-2 it Between frictional dissipation caused by relative motion, increase the service life of the two;And cause the pulling force at the both ends of rope 32, size phase Deng in the opposite direction.
Groove by rope 32 by roller housing 31-2, its both ends are connected on moving component 21, and allow rope 32 In tensioning state, it can so ensure slide up and down when rope 32 works, by design direction tension, and design can be passed through Mandrel 31-3 length ensures the highly consistent of the height of rope 32 and the barycenter of moving component 21, so as to ensure direction of pull and Moving component centrifugation force direction is in the same plane.
In a kind of embodiment, the pivot of above-mentioned elastic movement system infinite approach rotary table top 11, do not influenceing Installation and use in the case of, elastic movement system as close to rotary table top 11 pivot, to reduce centrifugal force Size.
Embodiment two:Referring to Fig. 6 to Fig. 9, as shown in legend therein:
A kind of Centrifugal vibration testing equipment, including:
- centrifuge, it is provided with pivoted arm 51, and pivoted arm 51 rotates about center and makees spinning motion;
- vibrational system, it includes two vibration machines 60 and two test specimen erecting beds 70, and two vibration machines 60 are set Put on pivoted arm 51 and the radial line of relatively above-mentioned pivot is symmetrical arranged, each vibration machine includes shell 61, respectively Exciting rod 62, pendulum spring 63, magnetic circuit component 64 and the coil 65 being arranged on inside shell 61, the upper end connection of pendulum spring 63 In on a fixed support 52 of relative pivoted arm 51, the lower end of pendulum spring 63 is connected with exciting rod 62, and magnetic circuit component 64 forms perseverance Fixed stabilizing magnetic field, exciting rod 62 are driven using coil 65, and coil 65 is suspended in the annulus gap of magnetic circuit component 64 with alternation The magnetic line of force of cutting magnetic field, coil 65 drive exciting rod 62 its guiding parts 66 guide effect lower edge parallel to radial line side To reciprocating,
- balanced controls 80, it is identical structure with the balanced controls 30 in embodiment one, including fixed pulley and rope, The mandrel of fixed pulley is fixedly installed with respect to pivoted arm 51, and rope is around fixed pulley and drives fixed pulley to rotate about center work from transhipment Dynamic, the both ends of rope are connected with two exciting rods 62 respectively, pulling force suffered by every one end of rope and the institute of connected exciting rod 62 It is equal in magnitude by centrifugal force, in the opposite direction.
Two test specimen erecting beds 70 are respectively arranged on two exciting rods 62.
The counterweight 90 being adapted to above-mentioned vibrational system positional symmetry and weight is additionally provided with pivoted arm 51, or is symmetrical arranged Two identical vibrational systems, to balance pivoted arm 51.
Centrifuge is mainly used in simulating the centrifugal acceleration mechanics environment needed for Centrifugal vibration experiment, and vibration machine is main For analog vibration or ballistics environment.The analog acceleration and vibration that Centrifugal vibration testing equipment is mainly used in synthesize comprehensive Mechanical environment is closed, the kind equipment is mainly used in the fields such as Aeronautics and Astronautics, weapons.
Common Centrifugal vibration testing equipment is arranged on a vibration machine 60 on the pivoted arm 51 of centrifuge so that is shaken Dynamic generator 60 is worked under the mechanical environment of centrifugal field, and test specimen 100 is arranged on vibration machine 60, is so occurred in vibration In the case that device 60 and centrifuge work by test requirements document, the test requirements document with regard to test specimen can be met, but due to vibration machine Need to work under the mechanical environment of centrifugal field, therefore for shake table, its structure itself have to adapt to the mechanical ring of centrifugal field Border.
It is different in the way of its output both at home and abroad at present for vibration machine equipment, it is divided into mechanical vibration hair Raw device, hydraulic vibration generator and electrodynamic type vibration machine, and frequency model can be used due to it in electrodynamic type vibration machine Enclose width, the reasons such as waveform distortion is small and be widely used, occupy the leading position in current vibration rig market, therefore this Technical scheme is illustrated from electrodynamic type vibration machine.
When driving the coil 65 of exciting rod 62 to pass to the electric current of alternation, exciting rod 62 can be in the effect of the magnetic field force of alternation It is lower to produce reciprocating motion, i.e., so-called vibration.
After vibration machine 60 is arranged on centrifuge, because its exciting rod 62 is in suspension status, and exciting rod 62 It is axially moved direction to be in without restrained condition, when its reciprocating direction is consistent with the radial direction that centrifuge rotates, swashs The caused centrifugal force in centrifugal field of bar 62 that shakes will be applied on pendulum spring 63, so as to cause pendulum spring 63 to deform, no The initial center equilbrium position of elastic movement system is only changed, and influences the initial designs motion bit of vibration machine 60 Move, and add the failure risk of spring material in itself.So to limit the adverse effect for becoming moving component centrifugal force, it is necessary to There is external force to balance this centrifugal force.
2 completely identical in structure 60,1 assembly guidances of balanced controls 80 and 2 of vibration machine are commonly mounted on On same bottom plate, bottom plate is fixed on the pivoted arm 51 of centrifuge, to be ensured as far as possible during installation:1) motion of vibration machine 60 The draw direction of direction and rope with centrifuge rotate it is radially consistent, 2) include exciting rod 62 moving component barycenter it is equal With rope in the same plane, when centrifuge rotates, the centrifugal force of the moving component of vibration machine 60 is by rope and mutual Offset.
In a kind of embodiment, exciting rod 62 is provided with external thread section, and external thread section is provided with a circumferential recess 67, circumferential recessed Nut 68 is threaded with respectively on the external thread section of the both sides of groove 67, close to the outer wall and nut of the external thread section of balanced controls 80 Inwall offer the axial wire casing 69 connected with circumferential recess 67 respectively, the rope of balanced controls 80 can pass through axial wire casing 69 and it is fixed at circumferential recess 67, then this is pressed in another locking screw nut.
In a kind of embodiment, the pivot of above-mentioned vibrational system infinite approach pivoted arm 51, vibrational system is leaned on as far as possible The pivot of nearly pivoted arm 51, to reduce the size of centrifugal force.
Embodiment three
Remaining is identical with embodiment one or two, and difference is, above-mentioned balanced controls include fulcrum block and lever, fulcrum Seat rotates against table top fixed setting, and lever makees spinning motion around the fulcrum of fulcrum block, and the both ends of lever are moved with two respectively Part connects, and centrifugal force suffered by pulling force size suffered by every one end of lever and connected exciting rod is equal in magnitude, direction phase Instead.
It is above the description to the utility model embodiment, by the foregoing description of the disclosed embodiments, makes ability Domain professional and technical personnel can realize or using the utility model.The professional skill of a variety of modifications to these embodiments to this area Will be apparent for art personnel, generic principles defined herein can not depart from it is of the present utility model spirit or In the case of scope, realize in other embodiments.Therefore, the utility model is not intended to be limited to these realities shown in this article Example is applied, and is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.

Claims (10)

  1. A kind of 1. device for balancing elastic moving component centrifugal force, it is characterised in that including:
    - elastic movement system, it includes two elastic movement mechanisms, and the radial line direction of the two relative centrifugal field is symmetrical arranged, each The elastic movement mechanism includes moving component and elastomeric element, one end fixed setting of the elastomeric element, the motion portion Part is connected and moved back and forth with the other end of the elastomeric element;
    - balanced controls, it is bascule structure, and both ends connect with two moving components of the two elastic movements mechanism respectively Connect;
    Wherein, in described two moving components, a center position to asymptotic centrifugal field moves, and another is to gradually away from psychological field Center position motion, centrifugal force size suffered by pulling force suffered by every one end of the balanced controls and connected moving component It is equal, in the opposite direction.
  2. 2. the device of the elastic moving component centrifugal force of balance according to claim 1, it is characterised in that the moving component The barycenter both ends that are located at the balanced controls plane of movement in.
  3. 3. the device of the elastic moving component centrifugal force of balance according to claim 1, it is characterised in that the moving component Moved along the radial line direction parallel to centrifugal field.
  4. 4. the device of the elastic moving component centrifugal force of balance according to claim 1, it is characterised in that the balanced controls Including fixed pulley group and rope, the fixed pulley group includes one or more fixed pulleys, and the mandrel of the fixed pulley is fixedly installed, The rope bypasses the fixed pulley, and the fixed pulley can rotate about center under rope frictional force and make spinning motion, described The both ends of rope are connected with two moving components respectively, pulling force and connected motion suffered by every one end of the rope Centrifugal force is equal in magnitude suffered by part, in the opposite direction.
  5. 5. the device of the elastic moving component centrifugal force of balance according to claim 4, it is characterised in that the fixed pulley bag Rolling bearing and roller housing are included, the mandrel is multi-diameter shaft, and the rolling bearing, which is arranged, to be installed on the spindle nose of the mandrel, institute State roller housing interference to be installed on the rolling bearing, inner ring and institute of the rolling bearing close to shaft shoulder one end of the mandrel State and a sleeve is set between the shaft shoulder of mandrel, the outer ring and the roller of the shaft shoulder one end of the rolling bearing away from the mandrel Set is relatively fixed by back-up ring, and the inner ring of the shaft shoulder one end of the rolling bearing away from the mandrel is resisted against one and is fixedly connected on On the sleeve of the end cap of the spindle nose of the mandrel.
  6. 6. the device of the elastic moving component centrifugal force of balance according to claim 5, it is characterised in that the roller sleeve Gap is provided between the shaft shoulder of the mandrel and the end cap respectively.
  7. 7. the device of the elastic moving component centrifugal force of balance according to claim 1, it is characterised in that two motions The direction of motion of part and the centrifugal field it is radial parallel when, the device of the elastic moving component centrifugal force of balance infinitely connects The radial line of the nearly centrifugal field, its overall barycenter are infinitely close to perpendicular to centrifugal field and by the plane of radial line.
  8. 8. the device of the elastic moving component centrifugal force of balance according to claim 1, it is characterised in that described equilibrium bomb Property moving component centrifugal force device also have additional counterweight so that the device of the elastic moving component centrifugal force of the balance and described The overall heart of counterweight composition is infinitely close to the Pivot axle of centrifugal field.
  9. A kind of 9. Centrifugal vibration testing equipment, it is characterised in that the dress including centrifuge and as described in claim 1-8 is any Put;
    The centrifuge is provided with rotary table top, and it forms the centrifugal field;
    Each elastic movement mechanism also includes magnetic circuit component, and the magnetic circuit component forms stable stationary magnetic field, the fortune Dynamic component is connected on the elastomeric element and uses coil drive, the annular that the coil suspension is formed in the magnetic circuit component The magnetic line of force of the stationary magnetic field is cut in air gap with alternation, the moving component includes exciting rod, and the exciting rod is also connected with There is test specimen erecting bed.
  10. 10. Centrifugal vibration testing equipment according to claim 9, it is characterised in that the exciting rod is provided with external thread section, The external thread section is provided with a circumferential recess, and nut is threaded with respectively on the external thread section of the circumferential recess both sides, The outer wall of external thread section and the inwall of nut close to the balanced controls offer the axle connected with the circumferential recess respectively To wire casing.
CN201720222826.1U 2017-03-09 2017-03-09 Balance the device and Centrifugal vibration testing equipment of elastic moving component centrifugal force Withdrawn - After Issue CN206847884U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106908208A (en) * 2017-03-09 2017-06-30 苏州东菱振动试验仪器有限公司 The device and Centrifugal vibration testing equipment of the elastic moving component centrifugal force of balance
CN109163055A (en) * 2018-11-12 2019-01-08 苏州东菱振动试验仪器有限公司 A kind of cord tightness regulating member and its application

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106908208A (en) * 2017-03-09 2017-06-30 苏州东菱振动试验仪器有限公司 The device and Centrifugal vibration testing equipment of the elastic moving component centrifugal force of balance
CN106908208B (en) * 2017-03-09 2023-11-03 苏州东菱振动试验仪器有限公司 Device for balancing centrifugal force of elastic moving part and centrifugal vibration test equipment
CN109163055A (en) * 2018-11-12 2019-01-08 苏州东菱振动试验仪器有限公司 A kind of cord tightness regulating member and its application
CN109163055B (en) * 2018-11-12 2024-01-19 苏州东菱振动试验仪器有限公司 Rope tightness adjusting component and application thereof

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