CN208635750U - It is a kind of for measuring the strain gauge adhesion positioning device of shafting moment of flexure - Google Patents

Abstract

The utility model discloses a kind of for measuring the strain gauge adhesion positioning device of shafting moment of flexure, includes mainly locating ring, positioning seat and bow pen, the locating ring is arranged with the outer wall of axis body, and the plane where locating ring is perpendicular to the axis direction of axis body；The positioning seat is adapted with the edge of locating ring, and positioning seat is circumferentially slided along the edge of locating ring；In the bow pen insertion positioning seat, the scribing line end of bow pen is contacted with the outer wall of axis body；The top of the positioning seat is equipped with the projection seat of rectangle, and the side of projection seat is installed on level meter.The utility model has the following beneficial effects: the utility model utilizes locating ring, positioning seat and level meter, the position that foil gauge should be pasted on axis can accurately be found out, and meet three Xiang Yaoqiu that strain gauge adhesion need to meet, so that the accurate bending strain signal of accurate recording, reduces error.

Description

It is a kind of for measuring the strain gauge adhesion positioning device of shafting moment of flexure

Technical field

The utility model relates to shafting strain measurement technique fields, and in particular to a kind of for measuring the strain of shafting moment of flexure Piece pastes positioning device.

Background technique

The measurement of shafting moment of flexure is that the bending strain and phase information during slowly being rotated a circle by acquisition axis carry out Analysis to obtain lateral and vertical bending strain simultaneously, and then obtains the moment at different cross section.In order to eliminate torque It is influenced caused by bending strain, need the two sides in axis while pasting foil gauge composition half-bridge or full-bridge circuit.In order to obtain Accurately strain and phase information, it is desirable that: the foil silk in the foil gauge of axis two sides is parallel with axis；Axis two sides foil gauge must be located At section same on axis；Axis two sides foil gauge line has to pass through axle center and level.If not being able to satisfy any of requirements above One, the strain waveform of mistake can be all obtained, to obtain full of prunes section turn moment.

The method of attaching of foil gauge mainly has ocular estimate, graph paper method etc. on axis at present, big, inconvenient with error, Time-consuming disadvantage.Therefore, it is necessary to be improved to the prior art.

Summary of the invention

The purpose of this utility model is that in view of the deficiencies of the prior art, provide that a kind of error is small, easy to operate is used for Measure the strain gauge adhesion positioning device of shafting moment of flexure.

The technical solution adopted in the utility model are as follows: it is a kind of for measuring the strain gauge adhesion positioning device of shafting moment of flexure, It include mainly locating ring, positioning seat and bow pen, the locating ring is sheathed on the outer wall of body, and the plane where locating ring is vertical In the axis direction of axis body；The positioning seat is adapted with the edge of locating ring, and positioning seat is circumferentially slided along the edge of locating ring； In the bow pen insertion positioning seat, the scribing line end of bow pen is contacted with the outer wall of axis body.

According to the above scheme, the top of the positioning seat is equipped with the projection seat of rectangle, and the side of projection seat is installed on level meter.

According to the above scheme, the positioning seat includes the pedestal of rectangle, and the bottom of pedestal sets there are two parallel support leg, props up The front end of support foot symmetrically offers limited bayonet, and limited bayonet engages with the edge of locating ring；The pedestal is provided with up and down Marking groove, bow pen be set to marking groove in.

According to the above scheme, the diameter of the bow pen and the width of locating slot are equal.

According to the above scheme, the projection seat is set to the top of pedestal.

According to the above scheme, one end of the locating ring is equipped with retaining mechanism, and arranged for interval has along its length on locating ring Locking slot, locking slot and retaining mechanism lock locating ring.

The utility model has the following beneficial effects:

1, the utility model utilizes locating ring, positioning seat and level meter, and can accurately find out foil gauge should glue on axis The position of patch, and meet three Xiang Yaoqiu that strain gauge adhesion need to meet, so that the accurate bending strain signal of accurate recording, reduces Error；

2, positioning device structure described in the utility model is simple, easy to operate, and work efficiency is high, can fast implement foil gauge The positioning of paste position draws lines, and has saved manpower and material resources, has shortened the working time；

3, the utility model feasibility is good, high reliablity.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of one specific embodiment of the utility model.

Fig. 2 is the structural schematic diagram of positioning seat in the present embodiment.

Fig. 3 is the structural schematic diagram of locating ring in the present embodiment.

Fig. 4 is the structural schematic diagram of bow pen in the present embodiment.

Fig. 5 is the working state schematic representation one of the present embodiment.

Fig. 6 is the working state schematic representation two of the present embodiment.

Wherein: 1, bow pen；2, positioning seat；2.1, projection seat；2.2, level meter；2.3, pedestal；2.4, support leg；2.5, fixed Position bayonet；2.6, marking groove；3, locating ring；3.1, retaining mechanism；3.2, locking slot；

4, axis body.

Specific embodiment

The utility model in order to better understand is in the following with reference to the drawings and specific embodiments made the utility model further Ground description.

As shown in Figure 1 is a kind of for measuring the strain gauge adhesion positioning device of shafting moment of flexure, mainly includes locating ring 3, Positioning seat 2 and bow pen 1, the locating ring 3 is sheathed on the outer wall of axis body 4, and the plane where locating ring 3 is perpendicular to axis body 4 Axis direction；The positioning seat 2 is adapted with the edge of locating ring 3, and positioning seat 2 is circumferentially slided along the edge of locating ring 3；Institute It states in the insertion positioning seat 2 (as shown in Figure 4) of bow pen 1, the scribing line end of bow pen 1 is contacted with the outer wall of axis body 4.

Preferably, the top of the positioning seat 2 is equipped with the projection seat 2.1 of rectangle, and the side of projection seat 2.1 is installed on level meter 2.2。

Preferably, as shown in Fig. 2, the pedestal 2.3 of the positioning seat 2 including rectangle, the bottom of pedestal 2.3 sets that there are two flat Capable support leg 2.4, the front end of support leg 2.4 symmetrically offer limited bayonet 2.5, the edge of limited bayonet 2.5 and locating ring 3 Engaging；The pedestal 2.3 is provided with marking groove 2.6 up and down, and bow pen 1 is set in marking groove 2.6.In the present embodiment, institute The diameter for stating bow pen 1 is equal with the width of locating slot 2.6 on positioning seat 2, when scribing line bow pen 1 always with marking groove 2.6 vertical.

Preferably, the projection seat 2.1 is set to the top of pedestal 2.3.

Preferably, as shown in figure 3, one end of the locating ring 3 is equipped with retaining mechanism 3.1, on locating ring 3 along its length Arranged for interval has locking slot 3.2, and locking slot 3.2 and the cooperation of retaining mechanism 3.1 are used for locking positioning circle 3, is allowed to outer with axis body 4 Wall fits closely.

As shown in Figure 4 and Figure 5, the working principle of the utility model are as follows:

1, after determining the sectional position that foil gauge is pasted on axis body 4, first by locating ring 3 around axis body 4 one weeks and fixed, then Sufficiently long circumferentially positioned line is marked respectively in the paste position of axis two sides foil gauge along locating ring with bow pen 1 (circumferentially to determine The length of bit line is determined according to the width of foil gauge, reaches ten times of foil gauge width or so)；The axial direction of locating ring 3 is soft Property it can be made to fit closely with axis body 4, and the center line of axial rigidity then certifiable locating ring 3 place plane and axis body 4 Vertically, to guarantee that two sides position line is located on the same section of axis body 4；

2, as shown in figure 5, positioning seat 2 is placed in 4 surface side of axis body and movement, so that 2.4 front end of support leg is determined Position bayonet 2.5 and the edge of locating ring 3 fit closely, then positioning seat 2 is made circumferential movement along locating ring 3, observe level meter Bubble position in 2.2, until bubble position is placed in the middle；

3, bow pen 1 is inserted into the marking groove 2.6 in positioning seat 2, since marking groove 2.6 is close to the side of locating ring 3, Axially position line (as shown in Figure 6) is drawn along marking groove 2.6；It is similarly grasped in the other side symmetric position of axis body 4 again Make, until obtain two with axis parallel and be all respectively positioned on axially position line on horizontal plane, and axially position line and circumferential determines Bit line intersects T-shaped；

4, locating ring 3 and positioning seat 2 are removed, the position line marked in the position line of foil gauge itself and axis body 4 is overlapped, Foil gauge is pasted again.

Finally it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical It is novel, although the utility model is described in detail referring to embodiment, for those skilled in the art, according to It is so possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced It changes, but within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include It is within the protection scope of the utility model.

Claims (6)

1. a kind of for measuring the strain gauge adhesion positioning device of shafting moment of flexure, which is characterized in that mainly include locating ring, positioning Seat and bow pen, the locating ring are sheathed on the outer wall of axis body, and the plane where locating ring is perpendicular to the axis direction of axis body； The positioning seat is adapted with the edge of locating ring, and positioning seat is circumferentially slided along the edge of locating ring；The bow pen insertion is fixed In the seat of position, the scribing line end of bow pen is contacted with the outer wall of axis body.

2. as described in claim 1 for measuring the strain gauge adhesion positioning device of shafting moment of flexure, which is characterized in that described fixed The top of position seat is equipped with the projection seat of rectangle, and the side of projection seat is installed on level meter.

3. as claimed in claim 2 for measuring the strain gauge adhesion positioning device of shafting moment of flexure, which is characterized in that described fixed Position seat includes the pedestal of rectangle, and the bottom of pedestal is set there are two parallel support leg, and the front end of support leg symmetrically offers positioning Bayonet, limited bayonet engage with the edge of locating ring；The pedestal is provided with marking groove up and down, and bow pen is set to marking groove It is interior.

4. as claimed in claim 3 for measuring the strain gauge adhesion positioning device of shafting moment of flexure, which is characterized in that described stroke The diameter of line pen and the width of locating slot are equal.

5. as claimed in claim 3 for measuring the strain gauge adhesion positioning device of shafting moment of flexure, which is characterized in that described convex Seat is set to the top of pedestal.

6. as described in claim 1 for measuring the strain gauge adhesion positioning device of shafting moment of flexure, which is characterized in that described fixed One end of position circle is equipped with retaining mechanism, and arranged for interval has locking slot along its length on locating ring, and locking slot is matched with retaining mechanism Close locking positioning circle.