CN203929509U - A kind of for measuring the device of ring rigidity - Google Patents

Abstract

The utility model relates to the measurer of measuring rigidity, refers to particularly a kind of for measuring the device of ring rigidity.Comprise working plate, ring to be measured is placed on working plate, also comprises power charging assembly, and power charging assembly is fixed on working plate; Application of force measuring unit, application of force measuring unit is erected on working plate, and one end is connected with power charging assembly, and the other end is connected with ring to be measured; Ring distortion measurement unit, ring distortion measurement unit is arranged on working plate.The utility model is simple in structure, convenience of calculation, and adapt to different big or small rings, can measure fast and accurately the rigidity of ring.

Description

A kind of for measuring the device of ring rigidity

Technical field

The utility model relates to the measurer of measuring rigidity, refers to particularly a kind of for measuring the device of ring rigidity.

Background technology

In the production in the fields such as electromechanics, aviation, automobile, engineering machinery, ferrule piece widespread use.At present, the main method of production ring has traditional machining, as forging, cutting etc., and rolling, as traditional rolling, multiroll rolling etc.In the process of ring, fixture, driven roller, Bao Gundeng mechanism can be out of shape ring is produced the acting force of ring, the particularly thin-walled ring less to rigidity, and insufficient rigidity can directly have influence on the machining precision of ring.In addition, in the use procedure of ring finished product, as rolling bearing, wheel etc., under the stressed state of multiple spot, also the rigidity of ring is had to requirement, at present domestic also not have a special device of measuring ring rigidity under ring multiple spot stress.

Summary of the invention

The purpose of this utility model is exactly the deficiency that will solve above-mentioned background technology, provide a kind of for measuring the device of ring rigidity, comprise working plate, described working plate is provided with guide piece, it is characterized in that: also comprise power charging assembly, described power charging assembly is provided with at least two groups, is evenly fixed on guide piece as the center of circle taking the mid point of working plate;

Application of force measuring unit, described application of force measuring unit is erected on work top, and one end connects power charging assembly; Described application of force measuring unit comprises coupling shaft, spring, outer sleeve, inner sleeve, and described coupling shaft one end is fixedly connected with inner sleeve; Described outer sleeve is sheathed on the other end of coupling shaft; Between described inner sleeve, outer sleeve, be connected with spring; Described spring housing is connected on coupling shaft; Described application of force measuring unit is provided with the measurement mechanism of reaction spring deformation;

Deformation scale, described deformation scale is measured the elastically-deformable even circular scale of ring to be measured for being arranged on working plate.

Further described guide piece is the chute being arranged on working plate.

Further described power charging assembly comprises screw rod and fixed slider, and described fixed slider is fixed in chute, is provided with the screw supporting with screw rod on fixed slider; Described screw rod is connected with it through screw, and screw front end is connected with application of force measuring unit.

Further described power charging assembly is provided with two groups; Described power charging assembly is uniformly distributed on work top as round dot is facing each other taking the center of work top, and between two groups of power charging assemblies, angle is 180 °.

Further described power charging assembly is provided with three groups; Described power charging assembly is taking the center of work top as round dot is uniformly distributed on work top, and the angle between adjacent power charging assembly is 120 °.

Further described power charging assembly is provided with four groups; Described power charging assembly is taking the center of work top as round dot is uniformly distributed on work top, and the angle between adjacent power charging assembly is 90 °.

Further described measurement mechanism comprises viewport and spring scale, and described viewport is arranged on outer sleeve, sees through coupling shaft corresponding to viewport and is provided with spring scale.

The utility model is simple in structure, convenience of calculation, and adapt to different big or small rings, can measure fast and accurately the rigidity of ring.

Brief description of the drawings

Fig. 1: structural representation of the present utility model;

Fig. 2: working plate structural representation of the present utility model;

Fig. 3: power charging assembly structural representation of the present utility model;

Fig. 4: application of force measuring unit structural representation of the present utility model;

Fig. 5: fixed slider fixed sturcture schematic diagram of the present utility model;

Fig. 6: movable slider structural representation of the present utility model;

Fig. 7: application of force measuring unit of the present utility model and power charging assembly syndeton schematic diagram;

Wherein: 1-working plate; 2-power charging assembly; 3-measuring unit; 4-ring to be measured; 5-chute; 6-deformation scale; 2-1-screw rod; 2-2-fixed slider; 2-3-screw; 2-4-backstay; 3-1-coupling shaft; 3-2-spring; 3-3-outer sleeve; 3-4-inner sleeve; 3-5-packing ring; 3-6-outer seal; 3-7-interior capping; 3-8-observation panel; 3-9-application of force scale; 3-10-movable slider; 3-11-groove.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

A kind of for measuring the device of ring rigidity as shown in Fig. 1～7, comprise working plate 1, power charging assembly 2 and application of force measuring unit 3.

Working plate 1 as shown in Figure 2, ring 4 to be measured is placed on working plate 1, the center superposition of the center of ring 4 to be measured and working plate 1, working plate 1 is provided with annular deformation scale 6, ring 4 to be measured occurs after deformation under external force, and deformation scale 6 can be by the degree of concrete numeral reaction deformation.

Charging assembly 2 as shown in Figure 3, power charging assembly 2 comprises screw rod 2-1 and fixed slider 2-2, fixed slider 2-2 is fixed on working plate 1, on fixed slider 2-2, be provided with the screw 2-3 supporting with screw rod 2-1, screw rod 2-1 is connected with it through screw 2-3, and screw rod 2-1 front end is connected with application of force measuring unit 3.Power charging assembly 2 is mainly to apply thrust radially to ring 4 to be measured, makes ring 4 to be measured, under the effect of thrust, elastic deformation occur.

Application of force measuring unit 3 as shown in Figure 4, application of force measuring unit 3 comprises coupling shaft 3-1, spring 3-2, outer sleeve 3-3, inner sleeve 3-4, packing ring 3-5, outer seal 3-6, interior capping 3-7, described inner sleeve 3-4 is fixed on one end of coupling shaft 3-1, and outer sleeve 3-3 is socketed in the other end of coupling shaft 3-1; Interior capping 3-7, outer seal 3-6 are separately fixed at the outside of inner sleeve 3-4 and outer sleeve 3-3, and outer seal 3-6 outside is connected with screw rod 2-1 front end, and interior capping 3-7 is close to ring 4 to be measured in outside; Inner sleeve 3-4 and outer sleeve 3-3 inner side are provided with ring washer 3-5, and ring washer 3-5 is sheathed on coupling shaft 3-1; Between two rings shape packing ring 3-5, be provided with spring 3-2; Spring 3-2 is socketed on coupling shaft 3-1; On outer sleeve 3-3 barrel, offer viewport 3-8, see through coupling shaft 3-1 corresponding to viewport 3-8 and be provided with the spring scale 3-9 that reacts spring 3-2 deformation.

The measurement mechanism of the deformation of measuring spring 3-2 has multiple, for example, can use the deformation of the measurement mechanism reaction spring 3-2 of some sensors and so on.

The two ends of coupling shaft 3-1 and interior capping 3-7, outer seal 3-6 do not contact and between have certain distance, when spring 3-2 occurs when deformation, outer sleeve 3-3 can move left and right on coupling shaft 3-1.

As shown in Fig. 4～7, application of force measuring unit 3 is located on working plate 1 by two movable slider 3-10 bracing frames, and movable slider 3-10 upper surface is provided with the groove 3-11 of corresponding inner sleeve 3-4 and outer sleeve 3-3.

As shown in Fig. 4～7, application of force measuring unit 3 is connected with power charging assembly 2, and power charging assembly 2 is to application of force measuring unit 3 applied thrusts, and application of force measuring unit 3 transmits thrust radially to ring 4 to be measured, makes ring 4 to be measured that deformation occur.Fixed slider 2-2 in power charging assembly 2 is provided with backstay 2-4, and chute 5 is provided with the pilot hole 5-1 of corresponding backstay 2-4, and backstay 2-4 is injected in pilot hole 5-1 and fixed slider 2-2 can be fixed in chute 5.Can in chute 5, be disposed radially more than 2 pilot hole 5-1, can regulate like this distance of power charging assembly 2 and ring 4 to be measured, to adapt to the rings to be measured 4 of different sizes.

Working plate 1 upper surface is as illustrated in fig. 1 and 2 provided with chute 5, and described movable slider 3-10 and fixed slider 2-2 are placed in chute 5, and movable slider 3-10 slides in chute 5, if desired, can add lubricant to reduce friction force reduction error by between.In chute 5, offer multiple holes, fixed slider 2-2 can select different holes to fix according to the size of ring 4 diameters to be measured, and that can measure the rigidity of polytype ring to be measured 4 like this.

Chute 5 has six, is arranged at respectively 0 °, 90 °, 120 °, 180 °, 240 °, 270 ° six directions on work top 1 taking work top 1 mid point as the center of circle.Correspondence arranges mutually several on the same group power charging assembly 2 and application of force measuring unit 3, can measure like this elastic deformation of ring 4 to be measured under two power, three power and four power.

Concrete measuring process is: ring 4 to be measured is placed in to the centre of working plate 1, ring 4 to be measured overlaps with the mid point of working plate 1, and application of force measuring unit 3 is located on working plate 1 by travelling block 3-10 bracing frame, and travelling block 3-10 is placed in chute 5.The inside capping of application of force measuring unit 3 is connected with ring 4 to be measured.

Fixed pulley 2-2 is fixed in chute 5 by backstay 2-4 and pilot hole 5-1's, the front end of screw rod 2-1 is connected with the capping of application of force measuring unit 3 one end, and apply thrust radially to capping, application of force measuring unit 3 is to ring transmission thrust to be measured, make ring 4 to be measured produce deformation quantity, the deformation scale 6 by marking on working plate 1 measures the deformation quantity X of ring 4 to be measured.

Screw rod 2-1 is during to application of force measuring unit 3 applied thrust, spring 3-2 in application of force measuring unit 3 can produce compression set, the length that coupling shaft 3-1 enters into outside sleeve 3-3 increases, can see that from observation panel 3-8 application of force scale 3-9 coupling shaft 3-1 and the edge of observation panel 3-8 are subjected to displacement variation, record variable quantity, calculate by the elastic modulus of spring 3-2 and the relation of variable quantity the thrust F applying.

While measuring the rigidity of the ring to be measured 4 under two power, need to start two power charging assemblies 2 that opposite direction is relative, rotating screw bolt 2-1 applied thrust, the number of turns of two screw rod 2-1 rotations should be identical, and the thrust applying like this equate.Ring is being subject to equal and opposite in direction, a pair of power of opposite direction do the used time, the deflection in power F direction:

$\mathrm{\δ}=0.0744\frac{{\mathrm{FR}}^3}{\mathrm{EI}}$

Wherein: E is the elastic modulus of ring material, R is ring radius, and I is the moment of inertia in ring cross section.

While measuring the rigidity of the ring to be measured 4 under three power, need to start 0 °, 120 °, the 240 ° power charging assemblies 2 in three directions.Be subject to each one-tenth 120 degree of direction, when equal-sized three power,

$\mathrm{\δ}=0.0159\frac{{\mathrm{FR}}^3}{\mathrm{EI}}$

While measuring the rigidity of the ring to be measured 4 under four power, need to start 0 °, 90 °, 180 °, the 270 ° power charging assemblies 2 on four direction.In the time being subject to being in 90 degree equal and opposite in direction four power,

$\mathrm{\δ}=0.006\frac{{\mathrm{FR}}^3}{\mathrm{EI}}$

In sum:

$\mathrm{\δ}=\mathrm{\α}\frac{{\mathrm{FR}}^3}{\mathrm{EI}}(\mathrm{\α}=\mathrm{0.0744,0.0159,0.006}\·\·\·\·\·\·)$

Known: $\frac{F}{\mathrm{\δ}}=\frac{\mathrm{EI}}{\mathrm{\α}{R}^3}$

The equation left side is the rigidity of ring under certain stress, and equation the right is a constant for a concrete concrete stress of ring, and we only need measure the exert oneself deflection of size and F direction of F of multiple spot stress like this.

The utility model is simple in structure, convenience of calculation, and adapt to different big or small rings, can measure fast and accurately the rigidity of ring.

Claims (7)

1. for measuring a device for ring rigidity, comprise working plate (1), described working plate (1) is provided with guide piece; It is upper that described guide piece is distributed in working plate (1) along even circumferential, it is characterized in that:

Also comprise power charging assembly (2), described power charging assembly (2) is provided with at least two groups, is all fixed on guide piece;

Application of force measuring unit (3), it is upper that described application of force measuring unit (3) is erected at work top (1), and one end connects power charging assembly (2); Described application of force measuring unit (3) comprises coupling shaft (3-1), spring (3-2), outer sleeve (3-3), inner sleeve (3-4), and described coupling shaft (3-1) one end is fixedly connected with inner sleeve (3-4); Described outer sleeve (3-3) is sheathed on the other end of coupling shaft (3-1); Between described inner sleeve (3-4), outer sleeve (3-3), be connected with spring (3-2); Described spring (3-2) is socketed on coupling shaft (3-1); Described application of force measuring unit (3) is provided with the measurement mechanism of reaction spring (3-2) deformation;

Deformation scale (6), described deformation scale (6) is for being arranged at the upper elastically-deformable even circular scale of ring to be measured (4) of measuring of working plate (1).

2. as claimed in claim 1 a kind of for measuring the device of ring rigidity, it is characterized in that: described guide piece is for being arranged at the chute (5) on working plate (1).

3. as claimed in claim 1 a kind of for measuring the device of ring rigidity, it is characterized in that: described power charging assembly (2) comprises screw rod (2-1) and fixed slider (2-2), described fixed slider (2-2) is fixed in chute (5), is provided with the screw (2-3) supporting with screw rod (2-1) on fixed slider (2-2); Described screw rod (2-1) is connected with it through screw (2-3), and screw rod (2-1) front end is connected with application of force measuring unit (3).

4. as claimed in claim 1 a kind of for measuring the device of ring rigidity, it is characterized in that: described power charging assembly (2) is provided with two groups; Described power charging assembly (2) is uniformly distributed in work top (1) as round dot is facing each other taking the center of work top (1) upper, and between two groups of power charging assemblies (2), angle is 180 °.

5. as claimed in claim 1 a kind of for measuring the device of ring rigidity, it is characterized in that: described power charging assembly (2) is provided with three groups; Described power charging assembly (2) is upper as round dot is uniformly distributed in work top (1) taking the center of work top (1), and the angle between adjacent power charging assembly (2) is 120 °.

6. as claimed in claim 1 a kind of for measuring the device of ring rigidity, it is characterized in that: described power charging assembly (2) is provided with four groups; Described power charging assembly (2) is upper as round dot is uniformly distributed in work top (1) taking the center of work top (1), and the angle between adjacent power charging assembly (2) is 90 °.

7. as claimed in claim 1 a kind of for measuring the device of ring rigidity, it is characterized in that: described measurement mechanism comprises viewport (3-8) and spring scale (3-9), it is upper that described viewport (3-8) is arranged at outer sleeve (3-3), sees through the coupling shaft (3-1) that viewport (3-8) is corresponding and be provided with spring scale (3-9).