CN102033017A - Horizontal push-pull force tester - Google Patents

Abstract

The invention relates to the technical field of mechanical property tests, and discloses a horizontal push-pull force tester. The horizontal push-pull force tester comprises a fine tuning module, a tensiometer, a coarse tuning module, a base, precise guide rails and a transitional plate, wherein the fine tuning module comprises a tension fine tuning handle wheel, a lead screw and a lead screw seat; the forwarding or retracting of the lead screw is controlled by the forward and reverse rotation of the tension fine tuning handle wheel; the other end of the lead screw is contacted with the precise guide rails fixedly provided with the tensiometer and the transitional plate; and the accurate position of the transitional plate on the precise guide rails can be controlled. The coarse tuning module comprises a winding wheel, a winding handle, a ratchet wheel and a bearing seat; and the winding handle controls the ratchet wheel to rotate only toward one direction by the bearing seat and generate stepping. The horizontal push-pull force tester can carry out detection of mechanical tension or thrust on a single product, and has the advantages that the testing value is accurate, the error is less and the occupied space is less. In addition, by applying the fine tuning function of the horizontal push-pull force tester, the tension can be increased at constant speed, and the product is prevented from being damaged after being impacted by sudden force in the testing process.

Description

Horizontal push-pull effort tester

Technical field

The present invention relates to the mechanical test technical field, relate in particular to and be mainly used in the performance technologies of test products under tensile load, specifically is a kind of technology that adopts the manual test product push-pull effort of tautness meter.

Background technology

At present, in the optical communication industry, in the international optical property test standard, some optical indexes are that the state of band mechanical load is tested down, for fear of the instability of measured value, must reduce the error of proving installation.

In the optical fiber communication industry, the vertical tensile test method of the many employings of the optical property under the measuring optical product tensile load.Vertical tensile test method (shown in Fig. 1 a, Fig. 1 b) is adopted by many wire jumpers and tail optical fiber manufacturer, during test, one end of product to be measured is fixed on the testing jig upper end, the other end (treating gauge head) is vertically sagging and be fixed on down on the adjustment plate, by up and down two adjust plates product to be measured stretched naturally, manually the counterweight with specified weight places on the counter-balanced carriage, estimates the suffered pulling force of product to be measured by calculating the suffered gravity of counterweight.This method has the following disadvantages: (1) needs a large amount of counterweights could realize the fine setting of scale, has increased cost undoubtedly.(2) draw that also need to be converted to N behind the gross mass M of counterweight be the gravity value of unit, complexity increases.(3) increase and decrease of counterweight also needs artificial control, wastes time and energy.(4) because the difference of various places acceleration of gravity, so the value of thrust that different regions obtain is also different.(5) vertical testing jig can take more spaces.

The method of testing of conventional art is difficult to test out accurately the pulling force characteristic of product, and test has caused many adverse effects to mechanical performance of products, has directly influenced the stability of end product quality.

Summary of the invention

In view of this, the technical matters that mainly will solve of the present invention is: provide a kind of and take up room for a short time, cost is low, the metering precision height, and error is little, horizontal more flexibly push-pull effort tester.

For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:

A kind of horizontal push-pull effort tester comprises: fine setting module, tautness meter, coarse adjustment module, base, precise guide rail, rebound;

Described fine setting module comprises: pulling force trimming handle wheel, screw mandrel, screw rodb base; The advancing or retreat of forward and reverse Spin Control screw mandrel by pulling force trimming handle wheel, the other end of screw mandrel contacts with rebound with the precise guide rail that is fixed with tautness meter, the accurate position of may command rebound on precise guide rail;

Described coarse adjustment module comprises: reel, coiling handle, ratchet-gear wheel, bearing seat; The coiling handle can only rotate and produce stepping towards a direction by bearing seat control ratchet-gear wheel.

As optimized technical scheme, described tautness meter oppositely connects, and is used to test the suffered thrust of product to be measured.

For solving the problems of the technologies described above, the present invention also has a kind of technical scheme to be:

A kind of using method of horizontal push-pull effort tester may further comprise the steps:

1) end to be measured of product to be measured is fixed on the product interface to be measured of horizontal push-pull effort tester, the other end is fixed on the coarse adjustment module interface;

2) by the stepping of coiling handle adjusting ratchet-gear wheel, coarse adjustment makes product to be measured be in the nature straightened condition;

3) tautness meter makes zero;

4) rotation pulling force trimming handle wheel makes product to be measured be in stress gradually;

When 5) visual tautness meter pointer showed your needed pulling force, the pulling force trimming handle that stops the rotation wheel after static 3～5 seconds, showed that reading is constant to get final product.

As optimized technical scheme, further comprising the steps of before the described step 1): that tautness meter is oppositely installed.

After the present invention improves prior art, can carry out the check of mechanical pulling force or thrust, and have that test number is accurate, error is little and take up room little advantage single product.In addition, use fine adjustment function of the present invention that pulling force is at the uniform velocity increased, guarantee to sustain damage after product is avoided suffering to impact with sudden force in process of the test.

Description of drawings

Fig. 1 a, Fig. 1 b are known vertical tension tester structural representation.

Fig. 2 is the structural representation of horizontal push-pull effort tester one embodiment of the present invention.

Fig. 3 is the inner structure synoptic diagram of coarse adjustment module one embodiment among the present invention.

Fig. 4 is the structure principle chart of coarse adjustment module inner ratch gear among the present invention.

Fig. 5 is the inner structure synoptic diagram of fine setting module one embodiment among the present invention.

The main parts size explanation:

Adjust plate on 1,2 columns, 3 times adjustment plates, 4 counter-balanced carriages, 5 vertical tension tester base plates, 6 reels, 7 products to be measured, 8 walls, 9 fine setting module interfaces, 10 precise guide rail, 11 tautness meters, 12 rebounds, 13 device under test connectors, 14 coarse adjustment module interfaces, 15 bases, 16 reels, 17 coiling handles, 18 ratchet-gear wheels, 19 bearing seats, 20 ratchet locating pieces, 21 pulling force trimming handles wheel, 22 screw mandrels, 23 screw rodb bases.

Embodiment

The invention will be further described below in conjunction with the drawings and specific embodiments, can be implemented so that those skilled in the art can better understand the present invention also, but illustrated embodiment is not as a limitation of the invention.

As shown in Figure 2, the concrete structure for the horizontal tension tester of the present invention comprises: fine setting module, fine setting module interface 9, tautness meter 11, coarse adjustment module, coarse adjustment module interface 14, base 15, precise guide rail 10, rebound 12, device under test connector 13.Product to be measured is fixed on device under test connector 13 and coarse adjustment module interface 9 centres, can measures the suffered pulling force of product to be measured; And, product to be measured is fixed on device under test connector 13 and coarse adjustment module interface 9 centres with after the reverse installation of tautness meter, can measure the suffered thrust of product to be measured.

As shown in Figure 3, the inner structure of coarse adjustment module one embodiment comprises: reel 16, coiling handle 17, ratchet-gear wheel 18, bearing seat 19; Coiling handle 17 can only rotate and produce stepping towards a direction by bearing seat 19 control ratchet-gear wheels 18, and the stepping of ratchet-gear wheel 18 is by the tooth pitch decision of ratchet-gear wheel 18.One end of product to be measured is linked to each other with tautness meter 11, and the other end is on reel 16, and the counterclockwise motion by coiling handle 17 control ratchet-gear wheels 18 can be in product to be measured the stretching state of nature, reaches the purpose of coarse adjustment.

Fig. 4 is the structure principle chart of coarse adjustment module inner ratch gear among the present invention, and ratchet locating piece 20 closely cooperates with ratchet-gear wheel 18, by the accurately stepping of control ratchet-gear wheel 18 of coiling handle 17.Ratchet-gear wheel 18 is subjected to reversal interlocking relay in test process, this is under the effect of ratchet locating piece 20, can retrain the counter-rotating of reel 16.

Hooke's law is one of mechanics philosophy.Be applicable to the law of elasticity of all solid materials, it is pointed out: in regime of elastic deformation, the deformation Δ x of object is with causing that the external force Δ F of deformation is directly proportional.The expression formula of Hooke's law is Δ F=-k Δ x, and wherein k is a constant, and negative sign represents that the elastic force that spring produces is opposite with the direction of its elongation (or compression).In the present invention, product to be measured since the deformation Δ x that thrust or pulling force obtain determine by following formula:

$\mathrm{\Δx}=\frac{r}{R}\·\mathrm{nd}\±\mathrm{\ΔL}$

In the formula, x is the distance of device under test connector 13 and coarse adjustment module interface 14, and Δ x is the deformation quantity of product to be measured, r is the reel radius, and R is the ratchet-gear wheel radius, and Δ L is the left side of screw mandrel or the distance that moves right, d is the tooth pitch of ratchet-gear wheel, and n represents to rotate the ratchet-gear wheel tooth pitch number of coiling handle process.The product of n and d is the stepping of ratchet-gear wheel.

As shown in Figure 5, the inner structure of fine setting module one embodiment comprises: pulling force trimming handle wheel 21, screw mandrel 22, screw rodb base 23; The advancing or retreat of forward and reverse Spin Control screw mandrel 22 by pulling force trimming handle wheel 21.The other end of screw mandrel 22 contacts with rebound 12 with the precise guide rail 10 that is fixed with tautness meter 11, the accurate position of may command rebound 12 on precise guide rail 10.

The using method of horizontal push-pull effort tester one embodiment shown in Fig. 2,3,5 may further comprise the steps, and can measure the suffered pulling force of product to be measured:

1) end to be measured of product to be measured is fixed on the product interface 13 to be measured of tension tester, the other end is fixed on the coarse adjustment module interface 14;

2) by the stepping of coiling handle 17 adjusting ratchet-gear wheels 18, coarse adjustment makes product to be measured be in the nature straightened condition;

3) tautness meter makes zero;

4) rotation pulling force trimming handle wheel 21 makes product to be measured be in stress gradually;

When 5) visual tautness meter 11 pointers showed your needed pulling force, the pulling force trimming handle that stops the rotation wheel 21 after static 3～5 seconds, showed that reading is constant to get final product.

Before the above-mentioned steps, after the reverse installation of tautness meter, then above-mentioned steps can be measured the suffered thrust of product to be measured.

The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that those skilled in the art are done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.

Claims (4)

1. a horizontal push-pull effort tester is characterized in that, comprising: fine setting module, tautness meter, coarse adjustment module, base, precise guide rail, rebound;

Described fine setting module comprises: pulling force trimming handle wheel, screw mandrel, screw rodb base; The advancing or retreat of forward and reverse Spin Control screw mandrel by pulling force trimming handle wheel, the other end of screw mandrel contacts with rebound with the precise guide rail that is fixed with tautness meter, the accurate position of may command rebound on precise guide rail;

Described coarse adjustment module comprises: reel, coiling handle, ratchet-gear wheel, bearing seat; The coiling handle can only rotate and produce stepping towards a direction by bearing seat control ratchet-gear wheel.

2. horizontal push-pull effort tester as claimed in claim 1 is characterized in that described tautness meter oppositely connects, and is used to test the suffered thrust of product to be measured.

3. the using method of a horizontal push-pull effort tester is characterized in that, may further comprise the steps:

1) end to be measured of product to be measured is fixed on the product interface to be measured of horizontal push-pull effort tester, the other end is fixed on the coarse adjustment module interface;

2) by the stepping of coiling handle adjusting ratchet-gear wheel, coarse adjustment makes product to be measured be in the nature straightened condition;

3) tautness meter makes zero;

4) rotation pulling force trimming handle wheel makes product to be measured be in stress gradually;

When 5) visual tautness meter pointer showed your needed pulling force, the pulling force trimming handle that stops the rotation wheel after static 3～5 seconds, showed that reading is constant to get final product.

4. the using method of horizontal push-pull effort tester as claimed in claim 3 is characterized in that, and is further comprising the steps of before the described step 1): that tautness meter is oppositely installed.

Images