CN102004030B - Vibration measuring test bed for vibration absorber - Google Patents
Vibration measuring test bed for vibration absorber Download PDFInfo
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- CN102004030B CN102004030B CN 201010533126 CN201010533126A CN102004030B CN 102004030 B CN102004030 B CN 102004030B CN 201010533126 CN201010533126 CN 201010533126 CN 201010533126 A CN201010533126 A CN 201010533126A CN 102004030 B CN102004030 B CN 102004030B
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Abstract
The invention discloses a vibration measuring test bed for a vibration absorber, which comprises a base, a motor, a first vibrating shaft, a swing shaft, an excitation box, a vibration sensor and a vibration measurer, wherein the first vibrating shaft is connected with the motor through a driving belt and is an eccentric shaft, or an eccentric device is arranged on the first vibrating shaft; the swing shaft is supported on the base; a vibration absorber positioning disc and a vibration signal disc are arranged at one end of the swing shaft; the excitation box is sleeved on the swing shaft; two sides of the excitation box are respectively connected with a back support through springs; the back support is arranged on the base; the first vibrating shaft is supported on the excitation box; the vibration sensor is arranged on the base and separated from a vibration transmitting rod for a preset distance; and the vibration measurer is connected with the vibration sensor. In the invention, the rotation of the vibration absorber is converted into oscillating motion at a certain frequency along the center of the vibration absorber; the sensor picks up the swing amplitude value; the swing amplitude value is converted into a current value which is displayed on the vibration measurer; and after the current value is stable, the current value is compared with the current value of a standard vibration absorber to judge whether the product vibration absorber is qualified or not.
Description
Technical field
The present invention relates to the damper technique field, more particularly, relate to a kind of vibration damper vibration measuring testing table.
Background technology
Engine silicon oil damper (hereinafter to be referred as vibration damper) is an important spare part that is contained in the engine crankshaft rear end; Its effect is to avoid engine in operational process, owing to the variation meeting of load produces the increase of moment moment of torsion or the damage that minimizing causes engine crankshaft to bent axle.So the ratio of damping of produced vibration damper must be in specialized range, to reach and to satisfy the designing requirement of engine.In order to verify whether produced each vibration damper can reach the ratio of damping of designing requirement, at present, the test of must in the laboratory, installing if still in the laboratory, install test, is the needs that can't satisfy batch process.
Test if directly do simple the rotation through the driven by motor vibration damper, just changes on time moment when starting during vibration damper to some extent, observes to be difficult for, and the method that more is difficult for increasing or reduce vibration damper silicone oil is adjusted the resistance of shock absorber coefficient.
Need badly at present and a kind ofly convenient judge that whether qualified vibration damper is, and can satisfy the vibration damper vibration measuring testing table that becomes the product needs in batches.
Summary of the invention
In view of this, the invention provides a kind of vibration damper vibration measuring testing table, need not in the laboratory, also can to judge that conveniently whether qualified vibration damper is.
For realizing above-mentioned purpose, the present invention provides following technical scheme:
A kind of vibration damper vibration measuring testing table comprises:
Base;
Be arranged on the motor on the said base;
With first vibrating shaft that said motor links to each other through chain transmission or band transmission, said first vibrating shaft is excentric shaft or which is provided with decentralizing device;
Swing shaft, on said base, the one of which end is provided with vibration damper positioning disk and vibration signal dish through bearings, is connected with the vibration transmission bar on this vibration signal dish;
The exciting case, it is set on the said swing shaft, and these exciting case both sides link to each other with rear support through spring respectively, and this rear support is arranged on the said base, and said first vibrating shaft passes through bearings on this exciting case;
Be arranged on the said base, and with the said vibration transmission bar vibration transducer of predeterminable range at interval;
The vialog that links to each other with said vibration transducer.
Preferably, in above-mentioned vibration damper vibration measuring testing table, said first vibrating shaft is provided with first gear, and this first gear is provided with decentralizing device.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise second vibrating shaft, this second vibrating shaft is provided with second gear with said first gearing mesh, and this second gear is provided with decentralizing device.
Preferably, in above-mentioned vibration damper vibration measuring testing table, said vibration transmission bar is the plane towards that face of said vibration transducer.
Preferably; In above-mentioned vibration damper vibration measuring testing table, also comprise the terminal pad that is set on the said swing shaft, be contained on the said terminal pad with the crack engage sleeves between said vibration damper positioning disk; And passing through screw retention on this terminal pad, said vibration signal dish passes through screw retention on this terminal pad.
Preferably; In above-mentioned vibration damper vibration measuring testing table, also comprise the sensor mount that is arranged on the said base, this sensor mount is provided with pilot hole; Said swing shaft is located on the said pilot hole through bearing bracket stand, and said vibration transducer is arranged on this sensor mount.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise the adjustment bolt that is threaded on the said rear support, said spring one end links to each other with said exciting case, and the other end links to each other with said adjustment bolt.
Preferably, in above-mentioned vibration damper vibration measuring testing table, also comprise control desk, the power line of said motor is connected with the frequency converter of said control desk.
Preferably; In above-mentioned vibration damper vibration measuring testing table; Also comprise the motor speed measuring gear on the output shaft that is arranged on said motor; On the said base, and be provided with near switch through support on the position relative with said motor speed measuring gear, this is connected with the velocity indicator of said control desk near switch.
Preferably; In above-mentioned vibration damper vibration measuring testing table; Also comprise through being bolted to the motor installation base on the said base; Said motor is bolted on the said motor installation base through adjustment, and said adjustment bolt one end is fixed on said motor installation base through the nut and the nut of its head, and the other end is stated the bedplate of motor through two nut clip residences.
Can find out from above-mentioned technical scheme; Compare with prior art, the present invention since first vibrating shaft be excentric shaft or be provided with decentralizing device, so through driven by motor when it rotates; Can vibrate; Join the vibration of band exciting case simultaneously, and make the exciting case, carry the reciprocal rotation of swing shaft simultaneously along the axis reciprocally swinging of swing shaft.The present invention converts to along the center of vibration damper through the rotation with vibration damper and does oscillating motion with certain frequency.Pick up the amplitude of fluctuation value with sensor, convert the amplitude of fluctuation value into current value, on vialog, show, the current value with the standard vibration damper after current value is stable contrasts, and judges the whether qualified of product vibration damper.Vibration damper vibration measuring testing table provided by the invention is in order to check the verifying bench that whether satisfies the desired ratio of damping of design to assembling produced silicon oil damper product; Its function is artificial frequent moment that vibration damper is carried out to turn to variation, observes the vibration damping amplitude.Under same vibration frequency; Amplitude data and product vibration damper through extracting the standard vibration damper compare, if the amplitude of product vibration damper is identical with the amplitude of standard vibration damper, show that the ratio of damping of product vibration damper is also identical with the ratio of damping of standard vibration damper; Amplitude and standard vibration damper like the fruit product vibration damper are variant; Can amplitude be adjusted in the margin tolerance of regulation through increasing or reduce the method for vibroshock silicone oil, the product vibration damper is adhered to specification.The standard vibration damper is to obtain through laboratory examination.Obtain the tolerance of amplitude through the test of a plurality of standard vibration dampers.Fundamentally solved vibration damper and produced the demand with testing authentication in batches, the present invention has low cost of manufacture, and energy consumption is low, the testing efficiency height, and test data is characteristics such as superiority accurately.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the vibration damper vibration measuring testing table that Fig. 1 provides for the embodiment of the invention;
Fig. 2 is the partial enlarged drawing of C among Fig. 1;
Fig. 3 is the cut-open view of Fig. 1 along the A-A line;
The partial schematic diagram of the vibration damper vibration measuring testing table that Fig. 4 provides for the embodiment of the invention;
Fig. 5 is that the B of Fig. 4 is to view.
Embodiment
The invention discloses a kind of vibration damper vibration measuring testing table, need not also can to judge that conveniently whether qualified vibration damper is in that engine test is indoor.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
See also Fig. 1-Fig. 5; The structural representation of the vibration damper vibration measuring testing table that Fig. 1 provides for the embodiment of the invention; Fig. 2 is the partial enlarged drawing of C among Fig. 1; Fig. 3 is the cut-open view of Fig. 1 along the A-A line, and the partial schematic diagram of the vibration damper vibration measuring testing table that Fig. 4 provides for the embodiment of the invention, Fig. 5 are that the B of Fig. 4 is to view.
Vibration damper vibration measuring testing table provided by the invention comprises: base 21, motor 1, first vibrating shaft 13, swing shaft 10, exciting case 12, vibration transducer 28 and vialog 2.Wherein, base 21 is the mount pad of whole test platform, has the effect of frame concurrently.Motor 1 is arranged on the said base 21, and first vibrating shaft 13 links to each other through chain transmission or band transmission with said motor 1, preferably adopts the vee belt transmission in the present embodiment, and promptly motor 1 passes to first vibrating shaft 13 with its rotary power through vee belt.It should be noted that first vibrating shaft 13 is excentric shaft or which is provided with decentralizing device, therefore, when first vibrating shaft 13 rotates, can vibrate owing to action of centrifugal force produces.On said base 21, the one of which end is provided with vibration damper positioning disk 5 and vibration signal dish 6 to swing shaft 10, is connected with vibration transmission bar 9 on this vibration signal dish 6 through bearings.Wherein, vibration damper positioning disk 5 is used for mounting dampers, and vibration signal dish 6 is used for mechanical oscillation signal is sent through vibration transmission bar 9.
The present invention is owing to first vibrating shaft 12 is excentric shaft or is provided with decentralizing device; So when driving its rotation, can vibrate, join 12 vibrations of band exciting case simultaneously through motor 1; And make exciting case 12 along the axis reciprocally swinging of swing shaft 10, carry swing shaft 10 reciprocal rotations simultaneously.The present invention converts to along the center of vibration damper through the rotation with vibration damper 4 and does oscillating motion with certain frequency.Pick up the amplitude of fluctuation value with vibration transducer 28, convert the amplitude of fluctuation value into current value, on vialog 2, show, the current value with the standard vibration damper after current value is stable contrasts, and judges the whether qualified of product vibration damper.Vibration damper vibration measuring testing table provided by the invention is in order to check the verifying bench that whether satisfies the desired ratio of damping of design to assembling produced silicon oil damper product; Its function is artificial frequent moment that vibration damper is carried out to turn to variation, observes the vibration damping amplitude.Under same vibration frequency; Amplitude data and product vibration damper through extracting the standard vibration damper compare, if the amplitude of product vibration damper is identical with the amplitude of standard vibration damper, show that the ratio of damping of product vibration damper is also identical with the ratio of damping of standard vibration damper; Amplitude and standard vibration damper like the fruit product vibration damper are variant; Can amplitude be adjusted in the margin tolerance of regulation through increasing or reduce the method for vibroshock silicone oil, the product vibration damper is adhered to specification.The standard vibration damper is to obtain through laboratory examination.Obtain the tolerance of amplitude through the test of a plurality of standard vibration dampers.Fundamentally solved vibration damper and produced the demand with testing authentication in batches, the present invention has low cost of manufacture, and energy consumption is low, the testing efficiency height, and test data is characteristics such as superiority accurately.
Concrete, swing shaft 10 rear ends connect with excessive fit system with double-row radial ball bearing, connect with gap fiting mode in rear support 14 front and back ends with bearing cap, adjust and the fixing position of double-row radial ball bearing on swing shaft 10 and rear support 14.Double-row radial ball bearing connects with excessive fit system with rear support 14, is installed with oil sealing in the bearing cap, with each 4 housing screw of two sides bearing cap-4 is pressed on the rear support 14.4 bearing housing screws of rear support 14 usefulness are fixed and clamped on base 21.
First vibrating shaft 13 is provided with first gear 16, and this first gear 16 is provided with decentralizing device 25.First vibrating shaft 13 can use excessive mode to connect with first gear 16, and with the position of fixing first gear 16 of lining, with gear flat key transmission rotating speed and moment of torsion.Driven pulley 17 is connected on said first vibrating shaft 13 through key, and through driving belt 18, and the driving pulley 19 on motor 1 output shaft is given first vibrating shaft 13 with the transmission of power of motor 1.First vibrating shaft, 13 two ends connect with excessive fit system with single row angular contact ball bearing respectively, with bearing cap two ends are fixed, and are fixedly connected on exciting case 12 with the bearing cap housing screw.Decentralizing device 25 can be fixedly connected on first gear 16 with spring washer and housing screw for attaching pouring weight, when first gear 16 rotates, produces the wobble amplitude of exciting case 12 because of decentralizing device 25.
In order to increase the wobble amplitude of exciting case 12, the present invention can also comprise second vibrating shaft 15, and this second vibrating shaft 15 is provided with second gear with 16 engagements of said first gear, and this second gear also is provided with decentralizing device 25.Can improve the amplitude of vibrating when rotating through two eccentric gears, thereby improve the wobble amplitude of exciting case 12, for vibration transducer 28 provides enough oscillator intensities.
Second vibrating shaft 15 can connect with transient mode with second gear, with the position of fixing second gear of lining, transmits rotating speed and moment of torsion with the gear flat key.Each connects second vibrating shaft, 15 two ends with the transition fit mode with single row angular contact ball bearing, with bearing cap two ends is fixed.The two sides respectively is fixedly connected on exciting case 12 through 4 bearing cap housing screws.
The present invention also comprises the terminal pad 7 that is set on the said swing shaft 10, being sleeved on the said terminal pad 7 of said vibration damper positioning disk 5 clearance fit, and through screw retention on this terminal pad 7, said vibration signal dish 6 through screw retention on this terminal pad 7.Tested vibration damper 4 and vibration damper positioning disk 5 are connected with gap fiting mode, compress with the workpiece housing screw, and transmit swing torque.Vibration damper positioning disk 5 and terminal pad 7 are connected with gap fiting mode, so that change vibration damper positioning disk 5 when changing product, compress with the positioning disk housing screw, and the transmission swing torque.Vibration signal dish 6 is welded with vibration transmission bar 9, as the swinging signal source.Vibration signal dish 6 is connected with the transition fit mode with terminal pad 7, compresses with the vibrating disk attachment screw, and transmits swing torque.
The present invention can also comprise the sensor mount 8 that is arranged on the said base 21, and this sensor mount 8 is provided with pilot hole, and said swing shaft 10 is located on the said pilot hole through bearing bracket stand, and said vibration transducer 28 is arranged on this sensor mount 8.
The present invention also comprises the adjustment bolt 29 that is threaded on the said rear support 14, and said spring 30 1 ends link to each other with said exciting case 12, and the other end links to each other with said adjustment bolt 29.
The present invention can also comprise and control desk 3 that the power line of said motor 1 is connected with the frequency converter of said control desk 3.Regulate speed governing (frequency conversion) turn-knob on the control desk 3, can change the electrical source of power frequency of motor 1, observe velocity indicator, make motor reach optimum speed.
The present invention also comprises the motor speed measuring gear 20 on the output shaft that is arranged on said motor 1; On the said base 21; And be provided with near switch 22 through support on the position relative with said motor speed measuring gear 20, this is connected near the velocity indicator of switch 22 with said control desk 3.
On support, adjust the distance with motor speed measuring gear 20, use the nut that carries near switch 22 to be fixed on the support pickoff signals.Signal wire near switch 22 is connected with the velocity indicator of control desk 3, on the velocity indicator on the control desk 3, can show the rotating speed of motor 1 in real time.
The present invention also comprises through being bolted to the motor installation base 24 on the said base 21; Said motor 1 is fixed on the said motor installation base 24 through adjustment bolt 23; Said adjustment bolt 23 1 ends are fixed on said motor installation base 24 through the nut and the nut of its head, and the other end is stated the bedplate of motor 1 through two nut clip residences.Can adjust the height of motor 1 with adjusting bolt 23, so that the tightness of adjustment vee belt, the motor 1 usefulness motor gland nut of adjusting compresses connection.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a vibration damper vibration measuring testing table is characterized in that, comprising:
Base (21);
Be arranged on the motor (1) on the said base (21);
With first vibrating shaft (13) that said motor (1) links to each other through chain transmission or band transmission, said first vibrating shaft (13) is for excentric shaft or which is provided with decentralizing device; Swing shaft (10), on said base (21), the one of which end is provided with vibration damper positioning disk (5) and vibration signal dish (6) through bearings, is connected with vibration transmission bar (9) on this vibration signal dish (6);
Exciting case (12); It is set on the said swing shaft (10); These exciting case (12) both sides link to each other with rear support (14) through spring (30) respectively, and this rear support (14) is arranged on the said base (21), and said first vibrating shaft (13) passes through bearings on this exciting case (12);
Be arranged on the said base (21), and with said vibration transmission bar (9) vibration transducer (28) of predeterminable range at interval;
The vialog (2) that links to each other with said vibration transducer (28).
2. vibration damper vibration measuring testing table as claimed in claim 1 is characterized in that said first vibrating shaft (13) is provided with first gear (16), and this first gear (16) is provided with decentralizing device (25).
3. vibration damper vibration measuring testing table as claimed in claim 2 is characterized in that, also comprises second vibrating shaft (15), and this second vibrating shaft (15) is provided with second gear with said first gear (16) engagement, and this second gear is provided with decentralizing device (25).
4. vibration damper vibration measuring testing table as claimed in claim 1 is characterized in that, said vibration transmission bar (9) is the plane towards that face of said vibration transducer (28).
5. vibration damper vibration measuring testing table as claimed in claim 1; It is characterized in that; Also comprise the terminal pad (7) that is set on the said swing shaft (10); Said vibration damper positioning disk (5) is sleeved on the said terminal pad (7) with clearance fit, and passes through screw retention on this terminal pad (7), and said vibration signal dish (6) passes through screw retention on this terminal pad (7).
6. vibration damper vibration measuring testing table as claimed in claim 1; It is characterized in that; Also comprise the sensor mount (8) that is arranged on the said base (21); This sensor mount (8) is provided with pilot hole, and said swing shaft (10) is located on the said pilot hole through bearing bracket stand, and said vibration transducer (28) is arranged on this sensor mount (8).
7. vibration damper vibration measuring testing table as claimed in claim 1; It is characterized in that; Also comprise the adjustment bolt (29) that is threaded on the said rear support (14), said spring (30) one ends link to each other with said exciting case (12), and the other end links to each other with said adjustment bolt (29).
8. vibration damper vibration measuring testing table as claimed in claim 1 is characterized in that, also comprises control desk (3), and the power line of said motor (1) is connected with the frequency converter of said control desk (3).
9. vibration damper vibration measuring testing table as claimed in claim 8; It is characterized in that; Also comprise the motor speed measuring gear (20) on the output shaft that is arranged on said motor (1); On the said base (21), and be provided with near switch (22) through support on the position relative with said motor speed measuring gear (20), this is connected near the velocity indicator of switch (22) with said control desk (3).
10. vibration damper vibration measuring testing table as claimed in claim 1; It is characterized in that; Also comprise through being bolted to the motor installation base (24) on the said base (21); Said motor (1) is fixed on the said motor installation base (24) through adjustment bolt (23), and said adjustment bolt (23) one ends are fixed on said motor installation base (24) through the nut and the nut of its head, and the other end is stated the bedplate of motor (1) through two nut clip residences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533126 CN102004030B (en) | 2010-11-05 | 2010-11-05 | Vibration measuring test bed for vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010533126 CN102004030B (en) | 2010-11-05 | 2010-11-05 | Vibration measuring test bed for vibration absorber |
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| CN102004030A CN102004030A (en) | 2011-04-06 |
| CN102004030B true CN102004030B (en) | 2012-03-28 |
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| CN 201010533126 Active CN102004030B (en) | 2010-11-05 | 2010-11-05 | Vibration measuring test bed for vibration absorber |
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