A kind of elasticity testing device
Technical field
The present invention relates to proving installation technical field, particularly a kind of elasticity testing device.
Background technology
Carbon brush is the device of transferring energy or signal between fixed part and rotating part in motor, generator or other rotating machineries, generally to add coagulating agent by pure carbon to make, external form is generally square, be stuck on metal support, there is spring handle the inside, and it is pressed in rotating shaft it is contacted with rotating shaft all the time.
Carbon brush, in operational process, should safeguard often, thereby so can pinpoint the problems and deal with problems early, to exempt the generation of accident.
Because carbon brush is a kind of and device rotary part joint, therefore contact reliably between carbon brush and rotary part in order to ensure, be generally employing add spring make carbon brush under the effect of spring force with rotary part butt.Therefore,, in the time that carbon brush is safeguarded, the test of spring force is also one of main Maintenance Significant Items.
In sum, how to provide a kind of device that can test brush holder spring power, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is for a kind of elasticity testing device is provided, and this elasticity testing device, by its structural design, can accurately be tested the elastic force of spring.
For solving the problems of the technologies described above, the invention provides a kind of elasticity testing device, for the test to brush holder spring power, comprising:
For placing the test board of spring;
The depression bar that described spring is exerted pressure, described depression bar is slidably mounted on described test board;
One end of described depression bar and described spring joint is provided with detection probe, and described detection probe is connected with pressure transducer, and described detection probe 3 has two and be set to symmetrically according to spring outline position to be measured;
For the driven unit that moves described depression bar and be connected with described depression bar, described driven unit is arranged on described test board.
Preferably, on described test board, be provided with the spring fixed part with blind hole structure.
Preferably, described driven unit comprises servomotor and ball-screw, and described servomotor is connected with described depression bar by described ball-screw.
The invention provides a kind of elasticity testing device, for the test to brush holder spring power, comprising: for placing the test board of spring; The depression bar that spring is exerted pressure, depression bar is slidably mounted on test board; One end of depression bar and spring joint is provided with detection probe, and detection probe is connected with pressure transducer; The driven unit that is used for mobile depression bar and is connected with depression bar, driven unit is arranged on test board.The specific operation process of elasticity testing device provided by the invention is: the parts of first needs being tested are firmly positioned on test board, to test the accuracy that ensures test; Depression bar is connected with driver part, and driver part drives depression bar action, by depression bar, unit under test is exerted pressure, and makes unit under test compression; The detection probe of depression bar end receives the compressed information of spring, and test data is passed on pressure transducer, calculates the spring force information of unit under test, thereby complete the test to unit under test by pressure transducer.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of an embodiment of the present invention elastic force proving installation;
In Fig. 1, the corresponding relation of component names and Reference numeral is:
Test board 1; Depression bar 2; Detection probe 3; Pressure transducer 4; Spring fixed part 5; Servomotor 6; Ball-screw 7.
Embodiment
Core of the present invention is for a kind of elasticity testing device is provided, and this elasticity testing device, by being provided with detection probe and pressure transducer that spring is detected, can accurately be tested the elastic force of spring.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to Fig. 1, Fig. 1 is the structural representation of an embodiment of the present invention elastic force proving installation.
The invention provides a kind of elasticity testing device, for the test to brush holder spring power, comprising: for placing the test board 1 of spring; The depression bar 2 that spring is exerted pressure, depression bar 2 is slidably mounted on test board 1; Depression bar 2 is provided with detection probe 3 with one end of spring joint, and detection probe 3 is connected with pressure transducer 4, and described detection probe 3 has two and be set to symmetrically according to spring outline position to be measured; The driven unit that is used for mobile depression bar 2 and is connected with depression bar 2, driven unit is arranged on test board 1.
The specific operation process of elasticity testing device provided by the invention is: the parts (spring) of first needs being tested are firmly positioned on test board 1, to test the accuracy that ensures test; Depression bar 2 is connected with driver part, and driver part drives depression bar 2 to move, and by depression bar 2, unit under test is exerted pressure, and makes unit under test compression; The detection probe 3 of depression bar 2 ends receives the compressed information of spring, and test data is passed on pressure transducer 4, calculates the spring force information of unit under test by pressure transducer 4, thereby completes the test to unit under test.
In the present embodiment, in order better spring to be fixed, on test board 1, be provided with the spring fixed part 5 with blind hole structure.By this structural design, spring can be inserted in blind hole, and spring can not be bent in compression process, and the reliability of test structure is improved.
Particularly, driven unit comprises servomotor 6 and ball-screw 7, and servomotor 6 is connected with depression bar 2 by ball-screw 7.
Above a kind of elasticity testing device provided by the present invention is described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.