A kind of oil loss tester of high automation
Technical field
The utility model is related to oil medium measuring instrument technical field more particularly to a kind of oil losses of high automation
Tester.
Background technology
Oil loss tester is the dielectric loss angle and volume resistivity for liquid insulating mediums such as insulating oils
Highly sophisticated device, oil loss tester have the advantages that high-precision and high stability, liquid insulating medium mainly have transformation
Device oil, cable oil, capacitor oil etc., by the measurement of dielectric loss angle and volume resistivity to them to judge its electrical resistance
Energy and insulation performance can ensure the normal operation of whole system equipment, such as the oil loss test of model FP-2000
Instrument can effectively avoid line voltage and frequency fluctuation from influencing dielectric loss test accuracy, even electrical power generators, the instrument
Also it can correctly run, and this equipment is from influences such as environment temperature, humidity, ensure after instrument long-time use still precision one
It causes, but such oil loss tester also Shortcomings at present, the operation ratio when being measured to oil loss rate
Cumbersome, the degree of automation is insufficient, influences the testing efficiency of oil loss rate, therefore we have proposed a kind of high automations
Oil loss tester is used to solve the above problems.
Utility model content
The purpose of this utility model is and a kind of high automation for proposing in order to solve shortcoming in the prior art
Oil loss tester.
To achieve these goals, the utility model employs following technical solution:
A kind of oil loss tester of high automation, including tester body, the tester body, which is equipped with, to be surveyed
Experimental tank is fixedly mounted there are two symmetrically arranged insulating bar in the bottom interior wall of the test trough, and the top of two insulating bars is consolidated
Dingan County is equipped with same first measurement plate, and the top of first measurement plate is equipped with the second measurement plate, the second measurement plate position
In in test trough;
The top side of the tester body is welded with stent, and transverse slat, the transverse slat are welded at the top of the stent
On offer rotation hole, screw is welded at the top of second measurement plate, the outside screw of the screw is equipped with turntable, institute
Turntable rotational installation is stated in rotation hole;
The top opposite side of the tester body is welded with locating rod, and stepping electricity is equipped at the top of the locating rod
Machine is welded with gear on the output shaft of the stepper motor, and the bottom of the turntable extends to the lower section of rotation hole, the turntable
Outside be equipped with rack, the wheel and rack is meshed.
Preferably, the one side of the tester body is equipped with mounting groove, and insulation resistance is installed in the mounting groove
Measuring instrument, the input terminal of the insulation measurement instrument are electrically connected with first electrode plate, are set at the top of first measurement plate
There is the first embedding groove, first electrode plate is fixedly installed in the first embedding groove, and the output terminal of the insulation measurement instrument is electrical
Second electrode plate is connected with, the bottom of second measurement plate is equipped with the second embedding groove, and the second electrode plate is fixedly installed in
In second embedding groove.
Preferably, the turntable is equipped with threaded hole, and the screw is threadedly coupled with threaded hole.
Preferably, two symmetrically arranged kellies are welded on the side wall of the rotation hole, the outside of the turntable is equipped with
Annular groove, two kelly one sides close to each other are slidably connected with annular groove.
Preferably, the screw top of the locating rod is fixed with stripper, the top of the stripper and stepper motor
It mutually welds bottom.
Preferably, the top side of second measurement plate is welded with gag lever post, and the locating rod is equipped with limit hole, limit
Position bar is slidably connected with limit hole.
Preferably, the top of first measurement plate is fixedly mounted there are two symmetrically arranged insulation limited post, and two absolutely
Bottom connection of the top of edge limited post with the second measurement plate touches.
Compared with prior art, the beneficial effects of the utility model are:Pass through transverse slat, rotation hole, turntable, threaded hole, silk
Bar, stepper motor, gear and rack are engaged, and convenient for being moved up and down to screw, pass through the first measurement plate, stent, second
Measurement plate, locating rod, insulation measurement instrument, second electrode plate, first electrode plate, gag lever post and insulation limited post are engaged,
Convenient for being moved to the second measurement plate with being in contact at the top of insulation limited post so that between the second measurement plate of the first measurement plate
Distance be insulate limited post height, consequently facilitating between the second measurement plate and the first measurement plate oil dielectric loss
Rate measures, and realizes the automatic measurement of the dielectric loss rate of oil.
The utility model is simple in structure, easy to operate, high degree of automation, convenient for the second measurement plate to be moved to and insulate
It is in contact, quickly the dielectric loss rate of oil can be measured at the top of limited post.
Description of the drawings
Fig. 1 be the utility model proposes a kind of high automation oil loss tester schematic cross-sectional view;
Fig. 2 be the utility model proposes a kind of high automation oil loss tester part A sectional structure
Schematic diagram.
In figure:1 tester body, 2 test troughs, 3 insulating bars, 4 first measurement plates, 5 stents, 6 transverse slats, 7 rotation holes, 8 turns
Disk, 9 threaded holes, 10 screws, 11 second measurement plates, 12 locating rods, 13 stepper motors, 14 gears, 15 racks, 16 insulation resistances are surveyed
Measure instrument, 17 second electrode plates, 18 first electrode plates, 19 gag lever posts, 20 insulation limited posts.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.
With reference to Fig. 1-2, a kind of oil loss tester of high automation, including tester body 1, tester body 1
Test trough 2 is equipped with, is fixedly mounted that there are two symmetrically arranged insulating bar 3, two insulating bars 3 in the bottom interior wall of test trough 2
Top be installed with same first measurement plate 4, the top of the first measurement plate 4 is equipped with the second measurement plate 11, the second measurement
Plate 11 is located in test trough 2;The top side of tester body 1 is welded with stent 5, and the top of stent 5 is welded with transverse slat 6, horizontal
Rotation hole 7 is offered on plate 6, the top of the second measurement plate 11 is welded with screw 10, and the outside screw of screw 10 is equipped with turntable
8, turntable 8 is rotatablely installed in rotation hole 7;The top opposite side of tester body 1 is welded with locating rod 12, the top of locating rod 12
Portion is equipped with stepper motor 13, and gear 14 is welded on the output shaft of stepper motor 13, and the bottom of turntable 8 extends to rotation hole 7
Lower section, the outside of turntable 8 is equipped with rack 15, and gear 14 is meshed with rack 15, passes through transverse slat 6, rotation hole 7, turntable 8, spiral shell
Pit 9, screw 10, stepper motor 13, gear 14 and rack 15 are engaged, convenient for being moved up and down to screw 10, insulated electro
The model MS2675DN of measuring instrument 16 is hindered, passes through the first measurement plate 4, stent 5, the second measurement plate 11, locating rod 12, insulated electro
Resistance measuring instrument 16, second electrode plate 17, first electrode plate 18, gag lever post 19 and insulation limited post 20 are engaged, convenient for by second
Measurement plate 11 is moved to be in contact with the top for the limited post 20 that insulate so that between the second measurement plate 11 of the first measurement plate 4
Distance is the height of insulation limited post 20, consequently facilitating the medium to the oil between the second measurement plate 11 and the first measurement plate 4
The proportion of goods damageds measure, and realize the automatic measurement of the dielectric loss rate of oil, and the utility model is simple in structure, easy to operate,
High degree of automation is in contact convenient for being moved to the second measurement plate 11 with the top for the limited post 20 that insulate, can be quickly right
The dielectric loss rate of oil measures.
In the utility model, the one side of tester body 1 is equipped with mounting groove, and insulation resistance survey is installed in mounting groove
Measure instrument 16, the input terminal of insulation measurement instrument 16 is electrically connected with first electrode plate 18, and the top of the first measurement plate 4 is equipped with the
One embedding groove, first electrode plate 18 are fixedly installed in the first embedding groove, and the output terminal of insulation measurement instrument 16 is electrically connected
There is second electrode plate 17, the bottom of the second measurement plate 11 is equipped with the second embedding groove, and second electrode plate 17 is fixedly installed in the second edge
In caulking groove, turntable 8 is equipped with threaded hole 9, and screw 10 is threadedly coupled with threaded hole 9, be welded on the side wall of rotation hole 7 two it is right
Claim the kelly set, the outside of turntable 8 is equipped with annular groove, and two kellies one side close to each other is slided with annular groove to be connected
It connects, the screw top of locating rod 12 is fixed with stripper, and the top of stripper is mutually welded with the bottom of stepper motor 13, and second surveys
The top side of template 11 is welded with gag lever post 19, and locating rod 12 is equipped with limit hole, and gag lever post 19 is slidably connected with limit hole,
There are two symmetrically arranged insulation limited post 20, the tops of two insulation limited posts 20 for the top fixed installation of first measurement plate 4
Bottom connection with the second measurement plate 11 touches, and passes through the first measurement plate 4, stent 5, the second measurement plate 11, locating rod 12, insulation
Resistance measuring instrument 16, second electrode plate 17, first electrode plate 18, gag lever post 19 and insulation limited post 20 are engaged, convenient for by the
Two measurement plates 11 are moved to be in contact with the top for the limited post 20 that insulate so that between the second measurement plate 11 of the first measurement plate 4
Distance be insulate limited post 20 height, consequently facilitating between the second measurement plate 11 and the first measurement plate 4 oil Jie
The matter proportion of goods damageds measure, and realize the automatic measurement of the dielectric loss rate of oil, the utility model is simple in structure, operation side
Just, high degree of automation is in contact convenient for being moved to the second measurement plate 11 with the top for the limited post 20 that insulate, can be quick
The dielectric loss rate of oil is measured.
Operation principle:In use, when needing to test oil loss, the second measurement plate 11 is located at insulation at this time
The top of limited post 20 at this time pours into oil in test trough 2 so that oily upper surface is located at the top of insulation limited post 20, opens
Dynamic stepper motor 13, the output shaft driven gear 14 of stepper motor 13 are rotated, and gear 14 drives 8 turns of turntable by rack 15
Dynamic, turntable 8 is rotated in rotation hole 7 at this time, since screw 10 is threadedly coupled by threaded hole 9 with turntable 8, so
Turntable 8, which rotates, will drive screw 10 to move down, and screw 10 drives the slide downward in limit hole of gag lever post 19, and screw 10 drives
Second measurement plate 11 moves down, and the second measurement plate 11 drives second electrode plate 17 to move down, until the second measurement plate 11
Bottom is in contact with the top for the limited post 20 that insulate, and closes stepper motor 13, sets second electrode plate 17 and first electrode plate first
Plate condenser relative area made of 18 is S, while sets the spacing of second electrode plate 17 and first electrode plate 18 as d, at this time
The distance between second electrode plate 17 and first electrode plate 18 d are the height of insulation limited post 20, normal according to oil medium dielectric
Number ε, can calculate the capacitive reactance of this plate condenser, and second electrode plate 17 and first electrode plate 18 are drawn respectively with insulated conductor,
It is connected outside container with Insulation Resistance Tester 16, opens Insulation Resistance Tester 16 at this time, measures second electrode plate 17 at this time
The oily insulating resistance value between first electrode plate 18, can be convenient according to the capacitive reactance of this value and the plate condenser calculated before this
Calculate the dielectric loss rate for being tested oil.
The above is only the preferable specific embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, in the technical scope that any one skilled in the art discloses in the utility model, according to this practicality
New technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.