CN106979842A - Quick rotation inertia quality somascope - Google Patents

Abstract

In order to overcome existing rotation inerttia apparatus measures speed slow, calculating process is complicated, it is impossible to the problem of being detected applied to typical products in mass production.The invention provides one kind is simple in construction, the rotary inertia somascope of speed quickly is checked, its structure includes base, circular horizontal turntable, the first motor, the second motor, the first sample clamp, the second sample clamp；The somascope is not required to specifically measure the rotary inertia of each product, only by way of being contrasted with standard sample rotary inertia, with regard to that can judge whether Product processing is qualified.The device not only checks that speed is fast but also inspection result is directly perceived simple but also need not carry out mathematical computations, so operator is also without special training.

Description

Quick rotation inertia quality somascope

Technical field

The present invention relates to a kind of rotary inertia check device, more particularly to a kind of quick rotation inertia quality somascope.

Background technology

Rotary inertia is that rotator inertia size is measured when rigid body is rotated about axis, and can directly reflect Rigid Body in Rotation With state The complexity of change.The factors such as the concrete numerical value of rotary inertia and the shape of rigid body, Mass Distribution and rotating shaft position are relevant.It is several All influences that rotary inertia is operationally all must take into consideration with rotating relevant precision instrument.Such as in military field, it is Weapon is maintained to launch the ballistic stability of bullet, it is necessary to bullet is rotated about the axis in flight course, and turn now Dynamic inertia can regard bullet as and keep measuring for the ability rotated, it is therefore necessary to be taken in when designing bullet.In machinery Design field, is sufficient utilization or suppresses the brought influence of the parts such as gear, bearing, rotating disk rotation, it is also necessary to fully examine Consider the factor of rotary inertia.With the raising of industrial productivity, quickly, accurately, intuitively check same in industrial processes One specification, the large-tonnage product of different batches rotary inertia it is whether qualified, be also the important step of quality monitoring.

Conventional method for measuring rotary inertia mainly has three-line pendulum method, torsional oscillation method, swing method etc. at present, and these methods are main It is torsion by measuring rigid body or hunting period indirectly to obtain rotary inertia.These methods are to reach in actually measurement It is required that measurement accuracy, operating personnel need to measure multiple hunting periods and calculate average value, and this has resulted in actual measurement speed Degree is slower；And these methods are required for measuring multiple parameters, also objectively reduce the efficiency of measurement.In fact, In actual industrial process of producing product, in many cases and the rotary inertia concrete numerical value of each product need not be measured, only Check whether product rotary inertia is processed qualified by quick method.By taking war industry as an example, production line balance comes out Bullet quantity it is a lot, the rotary inertia for measuring each bullet was both unrealistic, also without practical significance.As long as product rotary inertia Certified products are just should be regarded as within the acceptable range with the gap of standard sample.Therefore developing one kind can quickly, intuitively contrast Sample and the instrument of standard items rotary inertia gap are very necessary.

The content of the invention

In order to overcome existing apparatus measures speed slow, calculating process is complicated, it is impossible to detected applied to typical products in mass production Problem.The invention provides one kind is simple in construction, the rotary inertia somascope of speed quickly is checked, need not using the somascope Carrying out mathematical computations just can quickly judge whether the rotary inertia of product is qualified.

The present invention is for the technical scheme that is used of its technical problem of solution：Quick rotation inertia quality somascope, it is tied Structure includes base, circular horizontal turntable, the first motor, the second motor, the first sample clamp, the second sample clamp；The circle Horizontal revolving stage is located on base, and circular horizontal turntable can freely be rotated around core；First motor and the second motor are shape The fixed rotating speed motor that shape, quality, rotating speed are identical but rotation direction is opposite, the first motor and the second motor are separately mounted to On circular horizontal turntable, and on the same diameter of circular horizontal rotating disk, and the first motor and the second motor are to justifying The distance of shape horizontal rotating disc core is equal；First sample clamp and the second sample clamp structure are identical, and the first specimen holder Tool is arranged on the first motor, and the second sample clamp is arranged on the second motor.

Described quick rotation inertia quality somascope, the shape of first sample clamp and the profile of product to be checked Correspondence is consistent, and the shape of the second sample clamp is corresponding with the profile of standard sample consistent, and the construction of fixture corresponds to what is detected Product, it is ensured that product and standard sample to be checked smoothly quickly can take out or be positioned in fixture.

Described quick rotation inertia quality somascope, its detection process is：Circular horizontal turntable is fixed first, and work Qualified samples and product to be checked for test stone are respectively put into two fixtures, the first clamp band product to be checked, Two clamp standard samples, open the first motor, the second motor, then the first motor drives the first fixture and product to be checked one Rise and rotate；Second motor drives the second fixture and standard sample to rotate together, and with same rotational speed, round about rotate；This Shi Songkai circular horizontal turntables, if circular horizontal turntable does not rotate, the rotary inertia and standard of product to be checked Sample is identical, and product is qualified；If circular horizontal turntable rotates, and rotation direction is identical with product to be detected, then says The rotary inertia of bright product to be checked is more than standard sample；Conversely, such as circular horizontal turntable rotates, and rotation direction is treated together Detect that product is opposite（It is identical with standard sample rotation direction）, then illustrate that the rotary inertia of product to be checked is less than standard sample.

Compared with prior art, the invention has the advantages that：The apparatus structure of the present invention is simple, and rotary inertia is surveyed The speed of amount is quickly, simple to operate.Checking process need not carry out measurement and the mathematical computations of parameter, it is only necessary to which intuitively comparing is treated Check that sample rotary inertia, with the gap of standard sample, so enormously simplify operating process, improves inspection efficiency.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention；

In figure：1 is base, and 2 be circular horizontal rotating disk, and 3a is the first motor, and 3b is the second motor, and 4a is the first sample clamp, 4b is the second sample clamp.

Embodiment

The structure and detection method to the present apparatus are illustrated below in conjunction with the accompanying drawings：Quick rotation inertia quality is checked Instrument, as shown in figure 1, its structure includes base 1, circular horizontal turntable 2, the first motor 3a, the second motor 3b, the first sample clamp 4a, the second sample clamp 4b；The circular horizontal turntable 2 is located on base 1, and circular horizontal turntable 2 can freely turn around core It is dynamic；The first motor 3a and the second motor 3b is shape, quality, the fixed rotating speed that rotating speed is identical but rotation direction is opposite Motor, the first motor 3a and the second motor 3b are separately mounted on circular horizontal turntable 2, and positioned at the same of circular horizontal rotating disk 2 On one diameter, and the distance of the first motor 3a and the second motor 3b to the core of circular horizontal rotating disk 2 is equal；Described first Sample clamp 4a and the second sample clamp 4b structures are identical, and the first sample clamp 4a is arranged on the first motor 3a, the second sample Product fixture 4b is arranged on the second motor 3b.

Described quick rotation inertia quality somascope, because standard sample and product to be detected have identical profile, And fixture rotary inertia difference is avoided to the adverse effect of detection, so the first sample clamp 4a and the second sample clamp 4b shape Shape, quality, construction should be identical, and shape is corresponding with the profile of product to be checked, standard sample consistent.

One is placed on base 1 can the flat circular horizontal rotating disk 2 freely rotated of drum edema with the heart involved.To ensure the essence of experiment True property, the rotary inertia of circular horizontal rotating disk 2 should not be excessive, and this can be realized by reducing the thickness of rotating disk.Rotated When inertia is checked, circular horizontal turntable 2 is fixed first, and the qualified samples and product to be checked as test stone are put respectively Enter two fixtures, the first fixture 4a clamps product to be checked, the second fixture 4b clamps standard sample, open the first motor 3a, the Two motor 3b, then the first motor 3a the first fixture 4a of drive and product to be checked are rotated together；Second motor 3b drives second to press from both sides Tool 4b and standard sample are rotated together, and with same rotational speed, round about rotate；According to the fixed-axis rotation theorem of rigid body, pine After opened round horizontal revolving stage 2, if circular horizontal turntable 2 does not rotate（Still it is static）, then the rotation of product to be checked Inertia is identical with standard sample, and product is qualified；If circular horizontal turntable 2 rotates, and rotation direction is with production to be detected Condition is same, then illustrates that the rotary inertia of product to be checked is more than standard sample；Conversely, such as circular horizontal turntable 2 rotates, and Rotation direction is opposite with product to be detected（It is identical with standard sample rotation direction）, then illustrate that the rotary inertia of product to be checked is small In standard sample.

After having been checked to the rotary inertia of a product, circular horizontal rotating disk 2 is fixed first, close the first motor 3a and Second motor 3b, then takes out the product and next product to be checked is put within the first fixture 4a, standard sample is not Need to change, and repeat to organize experiment.By that analogy, just can quickly check multiple samples rotary inertia whether with standard items it Between there is deviation.

Claims (3)

1. quick rotation inertia quality somascope, it is characterised in that：Its structure includes base（1）, circular horizontal turntable（2）, One motor（3a）, the second motor（3b）, the first sample clamp（4a）, the second sample clamp（4b）；The circular horizontal turntable（2） Positioned at base（1）On, and circular horizontal turntable（2）Can freely it be rotated around core；First motor（3a）With the second motor （3b）For shape, quality, the fixed rotating speed motor that rotating speed is identical but rotation direction is opposite, the first motor（3a）With the second electricity Machine（3b）It is separately mounted to circular horizontal turntable（2）On, and positioned at circular horizontal rotating disk（2）Same diameter on, and First motor（3a）With the second motor（3b）To circular horizontal rotating disk（2）The distance of core is equal；First sample clamp （4a）With the second sample clamp（4b）Structure is identical, and the first sample clamp（4a）Installed in the first motor（3a）On, the second sample Product fixture（4b）Installed in the second motor（3b）On.

2. quick rotation inertia quality somascope according to claim 1, it is characterised in that its detection process is：First Fixed circular horizontal turntable（2）, and qualified samples and product to be checked as test stone are respectively put into two fixtures, the One fixture（4a）Clamp product to be checked, the second fixture（4b）Standard sample is clamped, the first motor is opened（3a）, the second motor （3b）, then the first motor（3a）Drive the first fixture（4a）Rotated together with product to be checked；Second motor（3b）Drive second Fixture（4b）Rotated together with standard sample, and with same rotational speed, round about rotate；Now unclamp circular horizontal turntable （2）If, circular horizontal turntable（2）Do not rotate, then the rotary inertia of product to be checked is identical with standard sample, Product is qualified；If circular horizontal turntable（2）Rotate, and rotation direction is identical with product to be detected, then illustrates production to be checked The rotary inertia of product is more than standard sample；Conversely, such as circular horizontal turntable（2）Rotate, and rotation direction is with production to be detected Product are on the contrary, then illustrate that the rotary inertia of product to be checked is less than standard sample.

3. quick rotation inertia quality somascope according to claim 1, it is characterised in that first sample clamp （4a）With the second sample clamp（4b）It is identical, and shape is corresponding with the profile of product to be checked, standard sample consistent.