CN206960125U - A kind of single torsion bar load simulation mechanism and test of flutter machine - Google Patents

Abstract

A kind of single torsion bar load simulation mechanism provided by the utility model and test of flutter machine, are related to technical field of test equipment, including fixed seat and torsion bar；One end of the torsion bar is fixed in the fixed seat, and the other end of the torsion bar is hanging, for connecting mechanism loading；The length of the torsion bar is between 3 5m.In the above-mentioned technical solutions, among the experiment for carrying out simulated engine, a longer torsion bar is employed to simulate the minimum load of the starting of car, utilize this elongated torsion bar for being up to 3 5m, can be formed well with the common four cylinder engine of automobile similar in intrinsic frequency, build identical physical environment for testing research；And this elongated torsion bar can also delicately reflect shake very much, so change and the torsional frequency of the torsion angle by measuring torsion bar, it is possible to which the rule of caused frictional force changes during analysis driven by clutches well.

Description

A kind of single torsion bar load simulation mechanism and test of flutter machine

Technical field

Technical field of test equipment is the utility model is related to, more particularly, to a kind of single torsion bar load simulation mechanism and is shaken Quiver testing machine.

Background technology

With the progress in epoch and the progress of science and technology, people require more and more higher to the riding sense organ and comfortableness of automobile, The application of various technologies also allows the comfortableness of automobile greatly to be taken on a new look, and the starting chatter phenomenon of automobile clutch is increasingly by each production Producer is of interest.

The starting chatter of automobile clutch, it is non-gold dough sheet and clutch cast iron platen and the flywheel face of clutch Low speed (typically at 600 revs/min -800 revs/min) rubs and caused, now because automobile ground zero, pilot control from Clutch, it is allowed to that the power of engine can just be reached to gearbox, moment of torsion is this before reaching and being enough to allow automobile to travel forward The sliding wear of low speed low torque can produce the phenomenon of mechanical creep, namely the automobile jitter phenomenon that usually we see, and this tremble Though it is not enough to allow running car dynamic, vehicle complete vehicle can be allowed to produce shake, as twitching, have one to car transmissions Fixed injury effect, also reduces occupant comfort.

And this phenomenon is directed to, asked in order to reduce ride comfort of car transmissions and injury and occupant etc. Topic, it is also necessary to targetedly studied, to improve the problem of starting to walk chatter.But in the prior art can not also altitude simulation The physical environment of vehicle starting chatter, to help researcher to depart from automobile to study the problem of starting chatter.

Utility model content

The purpose of this utility model is to provide a kind of single torsion bar load simulation mechanism and test of flutter machine, existing to solve Have present in technology can not the physical environment of altitude simulation vehicle starting chatter carry out the technology of vehicle starting chatter research Problem.

A kind of single torsion bar load simulation mechanism provided by the utility model, including fixed seat and torsion bar；

One end of the torsion bar is fixed in the fixed seat, and the other end of the torsion bar is hanging, for connecting load machine Structure；

Wherein, the length of the torsion bar is between 3-5m.

In the above-mentioned technical solutions, among the experiment for carrying out simulated engine, employ a longer torsion bar and carry out mould Intend the minimum load of the starting of car, using this elongated torsion bar up to 3-5m, can be formed well and automobile common four Intrinsic frequency similar in Cylinder engine, identical physical environment is built for testing research；And this elongated torsion bar can also Shake is delicately reflected very much, so change and the torsional frequency of the torsion angle by measuring torsion bar, it is possible to divide well The rule change of caused frictional force in clutch of isolating transmission process.

Further, it is preferred that the length of the torsion bar is 4m.

Further, in embodiment of the present utility model, single torsion bar load simulation mechanism also includes support base；

The torsion bar is arranged on the support base, passes through the support seat supports.

Further, in embodiment of the present utility model, the support base includes multiple support columns；

Length direction of multiple support columns along the torsion bar is uniformly arranged, for supporting the torsion bar.

Further, in embodiment of the present utility model, single torsion bar load simulation mechanism also includes protective cover；

The torsion bar is arranged in the protective cover.

Present invention also provides a kind of test of flutter machine, including current vortex loader and single torsion bar load simulation machine Structure；

The free end of the torsion bar of single torsion bar load simulation mechanism is connected with the current vortex loader.

In the above-mentioned technical solutions, the test of flutter machine employs above-mentioned single torsion bar load simulation with elongated torsion bar Mechanism, so more preferable test environment can be obtained when test of flutter is carried out, and sensitive jitter test effect.

Further, in embodiment of the present utility model, the test of flutter machine also includes motor；

Clutch installation position is reserved between the output end of the motor and the current vortex loader.

Further, in embodiment of the present utility model, the test of flutter machine also includes amplitude measuring apparatus；

The amplitude measuring apparatus and the current vortex loader and or the torsion bar be connected.

Further, in embodiment of the present utility model, the test of flutter machine also includes torque-measuring apparatus；

The torque-measuring apparatus and the current vortex loader and or the torsion bar be connected.

Further, in embodiment of the present utility model, the test of flutter machine also includes workbench；

The motor, the current vortex loader and single torsion bar load simulation mechanism are arranged at the work On platform.

Brief description of the drawings

, below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, describe below In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the front view for the test of flutter machine that the utility model one embodiment provides；

Fig. 2 is the restraining coil assembly stereochemical structure signal for the current vortex loader that the utility model one embodiment provides Figure；

Fig. 3 is the front view of the restraining coil assembly of the current vortex loader shown in Fig. 2；

Fig. 4 is the Section A-A schematic diagram of the restraining coil assembly of the current vortex loader shown in Fig. 3；

Fig. 5 is the side view of the restraining coil assembly of the current vortex loader shown in Fig. 3；

Fig. 6 is the front view for the current vortex loader that the utility model one embodiment provides；

Fig. 7 is the partial sectional view for the current vortex loader that the utility model one embodiment provides；

Fig. 8 is restraining coil assembly and the dress of brake disc in the current vortex loader that the utility model one embodiment provides Distribution structure schematic diagram；

Fig. 9 is the work of restraining coil assembly and brake disc in the current vortex loader that the utility model one embodiment provides Make principle schematic.

Reference：

1- fixed seats；2- torsion bars；3- support bases；4- current vortex loaders；5- motor；6- clutches installation position；7- shakes Amplitude measuring device；8- torque-measuring apparatus；9- workbench；

31- support columns；

41- pedestals；42- electromagnetic assemblies；43- brake discs；

421- iron cores；422- magnetic poles；423- electromagnet coils.

Embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality Novel protected scope.

, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.

, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition Concrete meaning of the language in the utility model.

Fig. 1 is the front view for the test of flutter machine that the utility model one embodiment provides.

First, as shown in figure 1, a kind of single torsion bar load simulation mechanism that the present embodiment provides, including fixed seat 1 and torsion bar 2；The basic structure of simulation can be formed first using torsion bar 2 and fixed seat 1.

Wherein, one end of the torsion bar 2 is fixed in the fixed seat 1, and the other end of the torsion bar 2 is hanging, for even Connect mechanism loading.

Importantly, the application employs and torsion bar 2 is arranged into elongated structure come to general-utility car four cylinder engine The mode that intrinsic frequency is simulated, through overtesting, when the length of the torsion bar 2 is between 3-5m, the action of torsion bar 2 Can formed well with the common four cylinder engine of automobile similar in intrinsic frequency, build identical physics for testing research Environment.

Moreover, this elongated torsion bar 2 can also delicately reflect shake very much, so the torsion by measuring torsion bar 2 The change at angle and torsional frequency, it is possible to which the rule of caused frictional force changes during analysis driven by clutches well.

By the use of this single part as fictitious load, multiple parts under actual entrucking state can not only be effectively excluded Coefficient complexity and interference, moreover it is possible to make the performance study of friction material more targeted, improve " the letter of test data Make an uproar ratio "

And pure test environment, the meaning to research are very great.

Wherein, preferable during experiment, the length of the torsion bar 2, which is arranged to 4m, preferably to be tested with obtaining one Environment.

Further, in embodiment of the present utility model, single torsion bar load simulation mechanism also includes support base 3； Because torsion bar 2 needs to be tested by the action such as torsion or shake, so torsion bar 2 is supported and can protected using support base 3 Demonstrate,prove stability of the torsion bar 2 during experiment.

As shown in figure 1, the torsion bar 2 is also provided on the support base 3, it is supported by the support base 3.

Preferably, the support base 3 includes multiple support columns 31；As shown in figure 1, multiple support columns 31 are along the torsion The length direction of bar 2 is uniformly arranged, and makes support column 31 when being set along the length direction of torsion bar 2, adjacent support column 31 Between approximate distance it is identical, the torsion bar 2 is supported by the uniform strong point.

Further, in embodiment of the present utility model, single torsion bar load simulation mechanism also includes protective cover；By In among experiment, the actions such as the torsion bar 2 of single torsion bar load simulation mechanism needs to twist and shake, and the weight of experiment Point obtains test data even with this torsion or shake, so, the protective cover can prevent other foeign elements Regular event of the torsion bar 2 during experiment is influenceed, the effect and data of guarantee test are accurate, so, the torsion bar 2 is set Put in the protective cover.

Present invention also provides a kind of test of flutter machine, including current vortex loader 4 and single torsion bar load simulation machine Structure；

The free end of the torsion bar 2 of single torsion bar load simulation mechanism is connected with the current vortex loader 4.

Because concrete structure, the principle of work and power and the technique effect of single torsion bar load simulation mechanism are detailed above State, just repeat no more herein.

So any technology contents for being related to single torsion bar load simulation mechanism, record above is referred to i.e. Can.

From the foregoing, it will be observed that the test of flutter machine employs above-mentioned single torsion bar load simulation mechanism with elongated torsion bar 2, institute So that more preferable test environment, and sensitive jitter test effect can be obtained when test of flutter is carried out.

Wherein, the current vortex loader 4 can use existing common current vortex loader 4 or use this Shen A kind of current vortex loader 4 that please be provide.

It should be noted that with reference to shown in Fig. 2-9, a kind of current vortex loader 4 that the application provides is different from existing Current vortex loader 4 in technology, as the current vortex loader 4 provided in Fig. 2-9 employ it is a kind of by all electromagnetic assemblies 42 have been all disposed within the restraining coil assembly of the side of pedestal 41, using this restraining coil assembly, can not only allow brake line Enclose that assembly is fixed, and unilateral spatial has no constraint, can freely change brake disc 43 and shafting componentses, for adjustment with Maintenance brings great convenience.

As shown in Figure 2-5, the restraining coil assembly, including to be arranged on the pedestal 41 same for pedestal 41 and at least two The electromagnetic assembly 42 of side；The electromagnetic assembly 42 is for forming electromagnetic field, is formed with the principle using cutting magnetic induction line Active force, the application of fictitious load.

And the structure in such as Fig. 2 can be seen that the electromagnetic assembly 42 assembly method be its one end with it is described Pedestal 41 connects, and the other end of the electromagnetic assembly 42 is hanging, that is to say, that all electromagnetism groups being arranged on the pedestal 41 Part 42 is all the side for being located at the pedestal 41, rather than as in the prior art, the different correspondences of electromagnetic assembly 42 The both sides for being arranged on pedestal 41 in the form of forming electromagnetic field mutually.

, just will be adjacent after all electromagnetic assemblies 42 have been arranged on into the side of the pedestal 41 with continued reference to Fig. 2 The magnetic poles 422 of two electromagnetic assemblies 42 be reversed.

In one embodiment as shown in Figure 2, the electromagnetic assembly 42 is provided with five, and five electromagnetic assemblies 42 Be on the basis of the center of circle of pedestal 41, curved setting, distance phase of each electromagnetic assembly 42 apart from the center of circle of pedestal 41 Deng.

In this embodiment it is possible to there will be one end into the electromagnetic assembly 42 of the other end first, the 3rd and the 5th Electromagnetic assembly 42 is arranged to positive magnetic pole 422, second, the 4th electromagnetic assembly 42 be arranged to reverse magnetic pole 422 so that adjacent The magnetic poles 422 of two electromagnetic assemblies 42 be reversed.

Certainly, this is only a kind of embodiment set, can voluntarily set electromagnetism group as needed in practical set Quantity or magnetic pole 422 the collocation direction of part 42.

In addition, it should also be noted that, the south poles of electromagnetic assembly 42, which are set, can pass through the coil of electromagnetic assembly 42 Around realizing to the mode such as opposite or power-up sequence is opposite.

Fig. 8 is that the restraining coil assembly that the utility model one embodiment provides and the assembling structure of brake disc 43 are illustrated Figure；

Fig. 9 is that the restraining coil assembly that the utility model one embodiment provides and the operation principle of brake disc 43 are illustrated Figure.

With reference to shown in figure 8 and Fig. 9, based on said structure, restraining coil assembly can make south poles when connecting circuit Distribution straggly, so when clutch output torque, torsion bar 2 twists, with its non-contacting thin aluminium dish (brake disc 43) Upper generation induced current.At the same time, the electric current makees the action of cutting magnetic line in magnetic field and acts power, that is, Load is applied with torsion bar 2.

Now, staff can adjust magnetic field power by adjusting the size of current in electromagnetic assembly 42, then Load is allowed to change, i.e., by adjusting the size of electric current, to adjust test load, and the load is by non-contacting mode Loading, there is no any influence to the intrinsic frequency and rotary inertia of torsion bar 2 itself, so can is maintained outside during experiment Boundary's physical condition it is constant.And this point, it is the research the most key part of clutch surface chatter.

Wherein, the understanding to principle, that is, the mode for employing label character are presented for convenience in Fig. 9, and principle can be more Add directly perceived.

It is further of importance that in this configuration, all electromagnetic assemblies 42 have all been provided in the side of pedestal 41, In the structure of prior art by comparison, such as the current vortex loading mentioned in Chinese publication number CN102169054B patent Device 4, it is to place electromagnet in loading disc both sides, allows the south poles magnetic line of force to be directed through loading disc body, so, this existing Have in the structure of technology, all more complicated in installation and removal, because during installation, the position of loading disc needs to adjust at two The centre of electromagnet magnetic gap, during maintenance, the electromagnet on both sides has while must dismantle, and otherwise loading disc shafting can not be with axial shifting It is dynamic to remove.

And in the structure of the restraining coil assembly of the application, because all electromagnetic assemblies 42 have all been provided in pedestal 41 Side, so can not only allow restraining coil assembly fixed, and unilateral spatial has no constraint, can freely change Brake disc 43 and shafting componentses, to adjust and maintenance brings great convenience, compared with prior art, its structure is more ingenious, And the loading effect of load is also more good.

Wherein, it is preferred that the electromagnetic assembly 42 includes iron core 421, magnetic pole 422 and electromagnet coil 423；The electromagnetism Iron coil 423 is wrapped in the outer wall of iron core 421, and the magnetic pole 422 is arranged on the hanging one end of the iron core 421.This knot Structure is more prone to assemble and manufactured, but the structure of electromagnetic assembly 42 is not limited in this kind of structure to realize.

Additionally, it is preferred that, the iron core 421 is threadedly coupled by screw rod with the pedestal 41.

Likewise it is preferred that, the magnetic pole 422 is threadedly coupled by screw with the iron core 421.

As shown in figure 4, being assembled using screw rod or screw to electromagnetic assembly 42, namely utilize screw rod or screw pair Iron core 421 and pedestal 41 are threadedly coupled, and magnetic pole 422 and the memory of iron core 421 are threadedly coupled using screw rod or screw, can be more The assembling of convenient electromagnetic component 42, dismounting are all more prone to, operated also more flexible.

Further, it is preferred that 10mm gap is provided between two adjacent electromagnetic assemblies 42, reserves one Fixed gap, can making restraining coil assembly, caused electromagnetic field is more stable at work.

Further, in embodiment of the present utility model, brake disc 43 and the braking of the current vortex loader 4 0.8-1.2mm gap is provided between the magnetic pole 422 of coil assembly, utilizes brake disc 43 and the magnetic of the restraining coil assembly Gap caused by pole 422, so can realizes that brake disc 43 described above and the magnetic pole 422 of the restraining coil assembly are non- The generation induced-current of contact, and in this embodiment, 0.8-1.2mm gap can also make caused induced-current more steady It is fixed, to ensure the stability of experiment.

Further, in embodiment of the present utility model, the test of flutter machine also includes motor 5, due to pre- If motor 5, so need not just prepare motor 5 again during experiment, and directly tested using default motor 5, together When, default motor 5 can also fix its relative position between single torsion bar load simulation mechanism, when repetition test It need not just have adjusted again.

Meanwhile as shown in figure 1, it is reserved with clutch between the output end of the motor 5 and the current vortex loader 4 Installation position 6, tested for installing clutch.

Further, in embodiment of the present utility model, the test of flutter machine also includes amplitude measuring apparatus 7, by In having preset amplitude measuring apparatus 7, you can directly to carry out testing inspection to the amplitude of torsion bar 2；And when assembling, institute State amplitude measuring apparatus 7 and the current vortex loader 4 and or the torsion bar 2 be connected.

Further, in embodiment of the present utility model, the test of flutter machine also includes torque-measuring apparatus 8, by In having preset torque-measuring apparatus 8, you can directly to carry out testing inspection to the moment of torsion of torsion bar 2；And when assembling, institute State torque-measuring apparatus 8 and the current vortex loader 4 and or the torsion bar 2 be connected.

Further, in embodiment of the present utility model, the test of flutter machine also includes workbench 9；Such as Fig. 1 institutes Show, the motor 5, the current vortex loader 4 and single torsion bar load simulation mechanism are arranged at the workbench 9 On.

Like this, when simulated test is carried out, the motor 5, current vortex loading can conveniently be adjusted The relative position relation of device 4 and single torsion bar load simulation mechanism etc., make it more stable in test.It is moreover, described Workbench 9 can also place other assistant products and other testing tools.

Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly The scope of each embodiment technical scheme of type.

Claims (10)

1. a kind of single torsion bar load simulation mechanism, it is characterised in that including fixed seat (1) and torsion bar (2)；

One end of the torsion bar (2) is fixed in the fixed seat (1), and the other end of the torsion bar (2) is hanging, negative for connecting Mounted mechanism；

Wherein, the length of the torsion bar (2) is between 3-5m.

2. single torsion bar load simulation mechanism according to claim 1, it is characterised in that the length of the torsion bar (2) is 4m.

3. single torsion bar load simulation mechanism according to claim 1, it is characterised in that also including support base (3)；

The torsion bar (2) is arranged on the support base (3), is supported by the support base (3).

4. single torsion bar load simulation mechanism according to claim 3, it is characterised in that the support base (3) includes multiple Support column (31)；

Length direction of multiple support columns (31) along the torsion bar (2) is uniformly arranged, for supporting the torsion bar (2).

5. single torsion bar load simulation mechanism according to claim 1, it is characterised in that also including protective cover；

The torsion bar (2) is arranged in the protective cover.

6. a kind of test of flutter machine, it is characterised in that including current vortex loader (4) and such as any one of claim 1-5 institutes The single torsion bar load simulation mechanism stated；

The free end of the torsion bar (2) of single torsion bar load simulation mechanism is connected with the current vortex loader (4).

7. test of flutter machine according to claim 6, it is characterised in that also include motor (5)；

Clutch installation position (6) is reserved between the output end and the current vortex loader (4) of the motor (5).

8. test of flutter machine according to claim 7, it is characterised in that also including amplitude measuring apparatus (7)；

The amplitude measuring apparatus (7) and the current vortex loader (4) and or the torsion bar (2) be connected.

9. test of flutter machine according to claim 7, it is characterised in that also including torque-measuring apparatus (8)；

The torque-measuring apparatus (8) and the current vortex loader (4) and or the torsion bar (2) be connected.

10. test of flutter machine according to claim 7, it is characterised in that also including workbench (9)；

The motor (5), the current vortex loader (4) and single torsion bar load simulation mechanism are arranged at the work Make on platform (9).