CN110108572A - Polypropylene film capacitor end cap explosion-proof pressure measuring appliance - Google Patents
Polypropylene film capacitor end cap explosion-proof pressure measuring appliance Download PDFInfo
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- CN110108572A CN110108572A CN201910507010.7A CN201910507010A CN110108572A CN 110108572 A CN110108572 A CN 110108572A CN 201910507010 A CN201910507010 A CN 201910507010A CN 110108572 A CN110108572 A CN 110108572A
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- connecting conduit
- end cap
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention relates to a kind of polypropylene film capacitor end-cover explosion-proof pressometers, belong to mechanical equipment technical field.It includes measurement part, measurement zone part, measurement display portion and pedestal；Pump, lubricating cup, precision pressure gauge and stop valve are lifted by lubricating cup valve, hand pump, hand and constituted in the measurement part；The measurement zone part is made of upper anchor ear, oil pressure slot, lower anchor ear, connection collet, hollow tabletting and end cap to be measured；The measurement display portion is made of connecting lead wire, installation inserted sheet, copper wire, battery and display lamp；End cap to be measured, connecting wire, battery, display lamp are formed into closed circuit, the display numerical value of precision pressure gauge is the explosion-proof pressure of end cap to be measured.Its of the invention measurement accuracy is high, and accuracy is high, and stability is good, at low cost, and is suitable for the measurement of all size end-cover explosion-proof pressure of polypropylene film capacitor, makes that pressure is time saving and energy saving, and measurement is convenient and high-efficient.
Description
Technical field
The present invention relates to a kind of pressometer, specifically a kind of polypropylene film capacitor is surveyed with end-cover explosion-proof pressure
Measuring device belongs to mechanical equipment technical field.
Background technique
With the development of society and economy, requirement of the market for various product security performance is growing day by day, polypropylene
Thin film capacitor industry, however the restriction by raw material, capacitance structure and equipment cause its security performance more difficult really
It protects.
In recent years, an urgent demand of the polypropylene film capacitor industry for security performance also promotes polypropylene film electric
Field of containers has broken out technological revolution, and end-cover explosion-proof capacitor is anti-since its superior security performance has gradually replaced original aluminum hull
Quick-fried design, for the class of safety protection of polypropylene film capacitor by original S0 promotion to S2, i.e. security performance has obtained matter
Leap.However in addition to verifying its safety by destructive testing is carried out to polypropylene film capacitor finished product, temporarily without it
His method determines, but judges the quality of capacitor safe performance again to the finished product stage, it is most likely that cause capacitor product because
Security performance is bad and causes the serious consequence of batch scrap, and waste is larger, does not meet economic benefit.In addition, polypropylene film
The destructive testing time of capacitor finished product is longer, even if capacitor end cap successfully starts up explosion-protection equipment, entire test process also needs 3
Hour or so；If short circuit occurs for capacitor, the inactive blast resistance construction of capacitor end cap then needs can just obtain a result for 12 hours.This examination
It tests that process is time-consuming and laborious, polypropylene film capacitor production capacity demand growing day by day can not be kept up at all.In addition, the polypropylene is thin
The destructive testing equipment of membrane capacitance finished product is made of test host and baking oven two parts, and entire process electricity consumption of testing is larger,
If long term test, economic cost is also larger.Therefore, it is badly in need of researching and developing a kind of equipment, it can be by the anti-detonation pressure of polypropylene film capacitor
Force data quantization measurement, and need to be time saving and energy saving, polypropylene film capacitor production capacity demand growing day by day can be kept up with, and meet
Economic benefit.
Summary of the invention
It is an object of the present invention to overcome the above deficiencies, provides a kind of end-cover explosion-proof pressure for polypropylene film capacitor
The measuring appliance of power is measured original immeasurablel end-cover explosion-proof pressure by pressure balance principle, so that the peace of end cap
Full performance can quantify and calibrate screening, and measurement accuracy is high, and accuracy is high, and stability is good, at low cost, and it is thin to be suitable for polypropylene
The measurement of all size end-cover explosion-proof pressure of membrane capacitance, makes that pressure is time saving and energy saving, and measurement is convenient and high-efficient.
According to technical solution provided by the invention, polypropylene film capacitor end cap explosion-proof pressure measuring appliance
Including measurement part, measurement zone part, measurement display portion and pedestal；Measurement part by lubricating cup valve, hand pump,
Hand lifts pump, lubricating cup, precision pressure gauge and stop valve and constitutes, and the first connecting conduit perpendicular to pedestal is arranged at the lubricating cup bottom, leads to
It crosses and is fixedly welded on pedestal, first connecting conduit, which is parallel in pedestal, wears the second connecting conduit, the second connecting conduit two
End is connected separately with the 7th connecting conduit and the 8th connecting conduit by nut, and the 7th connecting conduit and the 8th connection are led
Pipe is each perpendicular to pedestal and is parallel to the first connecting conduit, passes through nut above the 7th connecting conduit and the 8th connecting conduit
It is respectively fixed with check valve, wherein the check valve above the 7th connecting conduit connects measurement zone part, the 8th connecting conduit top
Check valve connect precision pressure gauge；8th connecting conduit of the precision pressure gauge bottom reconnects third connecting conduit, the
Three connecting conduits with connect the second connecting conduit of lubricating cup into an angle of 90 degrees, the third connecting conduit other end connects stop valve, thus
So that stop valve is connected with precision pressure gauge；The third connecting conduit center of the connection precision pressure gauge and stop valve
It is hollow, it is worn with the 4th connecting conduit of hand pump tail portion and connects fixation, the first connecting conduit, the second connecting conduit, third connection are led
It is interconnected between pipe, the 4th connecting conduit, the 7th connecting conduit and the 8th connecting conduit, hand pump and measurement zone, lubricating cup, essence
Close pressure gauge is placed in parallel on pedestal；Hand lifts pump bottom and is placed in chassis interior, and the hand lifts pump bottom and is provided with the 5th company
Conduit and the 6th connecting conduit two are connect, the 5th connecting conduit and the 6th connecting conduit are 90 degrees to each other setting, and connection direction is flat
For row in the 7th connecting conduit of the 5th connecting conduit of precision pressure gauge and stop valve connection measurement zone bottom, connection direction is parallel
The first connecting conduit of lubricating cup bottom is connected in the 6th connecting conduit of measurement zone, lubricating cup and precision pressure gauge, so that hand
Pump is lifted to be connected with measurement zone and lubricating cup；
The measurement zone part by upper anchor ear, oil pressure slot, lower anchor ear, connection collet, hollow tabletting, end cap to be measured, sealing ring and
Gasket is constituted, and the connection collet is fixed by welding on check valve, is placed and end cap to be measured on the connection collet
The oil pressure slot of correspondingly-sized, the lower anchor ear is covered in the junction of connection collet and oil pressure slot, and passes through the screw on lower anchor ear
Tighten fixation, above end cap to be measured place correspondingly-sized hollow tabletting, by upper anchor ear cover hollow tabletting, end cap to be measured and
The junction of oil pressure slot, and fixed by the screw tightening on upper anchor ear；
The measurement display portion is made of connecting lead wire, installation inserted sheet, copper wire, battery and display lamp, and wherein connecting lead wire is set
There are three, there is one end of two connecting lead wires to be crimped with installation inserted sheet, piece solderless wrapped connection display lamp of the other end, a solderless wrapped connection battery
Wherein one end, and another do not crimp installation inserted sheet connecting lead wire both ends difference solderless wrapped connection display lamp and battery it is another
End, the copper wire are welded in the punching press point of the rivet tail portion below the copper foil of end cap to be measured, i.e., by welding copper wire for end to be measured
Two exits of lid are connected, and end cap to be measured, connecting wire, battery, display lamp are formed closed circuit, display lamp lamp is bright；
When the moment that rivet in end cap and copper foil disengage, circuit open circuit, display lamp will extinguish moment where display lamp, at this time precision pressure
The display numerical value of table is the explosion-proof pressure of end cap to be measured.
As a further improvement of the present invention, wherein being pacified in the 7th connecting conduit and the 8th connecting conduit by attaching nut
Fill needle valve.
As a further improvement of the present invention, oil pressure slot inside edge corresponds to bayonet and places and oil pressure slot correspondingly-sized
Sealing ring.
As a further improvement of the present invention, the oil pressure slot, sealing ring, upper anchor ear and hollow tabletting are detachable.
As a further improvement of the present invention, two of the measurement zone part are detachably connected mouth, and one is set to oil
Indent, another is set on connection collet.
As a further improvement of the present invention, gasket is placed on the connection collet.
Compared with the prior art the present invention has the advantage that
1, the end-cover explosion-proof pressometer is devised according to the pressure balanced principle of two end connection of conduit, can not will originally surveyed
The end-cover explosion-proof pressure of amount intuitively shown by the data on the connected precision pressure gauge of the conduit other end of connection end cap,
So that the specific value of its explosion-proof pressure can be tested in the capacitor raw material stage, and finished product capacity test data is combined to formulate
End-cover explosion-proof pressure criteria, whether the security performance for determining capacitor without being tested again after capacitor finished product is made
Qualification, can both reduce due to end-cover explosion-proof performance it is bad caused by capacitor it is bad and scrap cost waste, can also further really
Protect the security performance and reliability of polypropylene film capacitor.
2, all metal parts of the end-cover explosion-proof pressometer are both designed as stainless steel material, antiseptic and rustproof, make
It is long with the service life.
3, two of the measurement zone of the end-cover explosion-proof pressometer are detachably connected mouth, and not only design has anchor ear, can be
Fixed each components when measurement, prevent components when test to be subjected to displacement and influence measurement accuracy；Meanwhile being also designed with sealing
Circle/gasket, can promote the leakproofness of entire measurement zone, to promote the measurement accuracy of whole equipment.
4, the oil pressure slot of the measurement zone of the end-cover explosion-proof pressometer, sealing ring, upper anchor ear and hollow tabletting are all provided with
It is calculated as detachable type, oil pressure slot, sealing ring, upper anchor ear and the middle pneumatics of correspondingly-sized can be selected according to the diameter of end cap to be measured
Piece, therefore this end cap explosion-proof pressure measuring appliance is suitable for the measurement of all size end-cover explosion-proof pressure.
5, the end-cover explosion-proof pressometer by piston type make pressure principle design, make pressure it is time saving and energy saving, i.e., measurement when side
Just laborsaving, high-efficient, economic cost is low.
6, the end-cover explosion-proof pressometer designs simultaneously has hand pump and hand to lift pump, in measurement polypropylene film capacitance terminal
When lid explosion-proof pressure, pump bigness scale first can be lifted with hand, the pressure needed for hand lifts pump increases to when costing power and lifting, at this time end cap to be measured
Explosion-proof pressure arrived critical value, then finely tuned and measured with hand pump again, fine setting scope is wide.To sum up, hand lifts pump and hand pump
It is used in combination, can further promote the stability and measurement accuracy of the measurement of the end-cover explosion-proof pressometer.
7, the end-cover explosion-proof pressometer is furnished with external display lamp, and when measuring end cap explosion-proof pressure, end cap two is drawn
End bottom rivet is weldingly connected by copper wire, and plugs display lamp in end cap exit to be measured, and circuit where display lamp is at this time
Closed circuit, therefore display lamp is bright, and lead to the moment that rivet and copper foil disengage in end cap when application pressure is gradually increased, display lamp
Place circuit open circuit, display lamp will extinguish moment, and the display numerical value of precision pressure gauge is the explosion-proof pressure of end cap to be measured at this time.
To sum up, the design of display lamp is conducive to the timing node that accurate judgement cover internal rivet to be measured and copper foil disengage, rather than not
The sound that ear listens rivet to disengage with copper foil is relied solely on to judge, accuracy is higher, that is, is conducive to promote the end-cover explosion-proof pressure
The measurement accuracy of force measurement device.
8, the end-cover explosion-proof pressometer measurement zone and precision pressure gauge bottom are designed with check valve, and Medium Oil is only
It can flow from the bottom up, this design can effectively prevent Medium Oil when test independently to flow back due to gravitational influence, thus
Cause precision pressure meter reading to become smaller, influences final measurement result.I.e. in end-cover explosion-proof pressometer measurement zone and precision
The check valve that pressure gauge bottom is designed can ensure that the accuracy of surveyed end-cover explosion-proof pressure.
Detailed description of the invention
Fig. 1 is main view of the invention.
Fig. 2 is top view of the invention.
Fig. 3 is left view of the invention.
Fig. 4 is the decomposition diagram of measurement zone of the present invention.
Fig. 5 is present invention measurement display lamp scheme of installation.
Description of symbols: lubricating cup valve 1, upper anchor ear 2, oil pressure slot 3, lower anchor ear 4, connection collet 5, check valve 6, hand
Pump 7, hand lift pump 8, lubricating cup 9, the first connecting conduit 10-1, the second connecting conduit 10-2, the first connecting conduit 10-3, the first connection
Conduit 10-4, the 5th connecting conduit 10-5, the 6th connecting conduit 10-6, the 7th connecting conduit 10-7, the 8th connecting conduit 10-8,
Precision pressure gauge 11, stop valve 12, pedestal 13, needle valve 14, end cap to be measured 15, hollow tabletting 16, sealing ring 17, gasket
18, connecting lead wire 19, installation inserted sheet 20, exit 21, rivet 22, copper foil 23, copper wire 24, battery 25, display lamp 26.
Specific embodiment
The present invention will be further described in conjunction with the embodiment in attached drawing below:
As Figure 1-Figure 4, a kind of novel polypropylene thin-film capacitor end-cover explosion-proof pressometer, by lubricating cup valve 1, upper armful
Hoop 2, oil pressure slot 3, lower anchor ear 4, connection collet 5, check valve 6, hand pump 7, hand lift pump 8, lubricating cup 9, the first connecting conduit 10-1,
Second connecting conduit 10-2, the first connecting conduit 10-3, the first connecting conduit 10-4, the 5th connecting conduit 10-5, the 6th connection
Conduit 10-6, the 7th connecting conduit 10-7, the 8th connecting conduit 10-8, precision pressure gauge 11, stop valve 12, pedestal 13, needle-like
The components such as valve 14, end cap to be measured 15, hollow tabletting 16, sealing ring 17, gasket 18 are constituted.Wherein all metal parts are equal
It is designed as stainless steel material, antiseptic and rustproof, long service life.
Wherein, pump 8, lubricating cup 9, essence are lifted by lubricating cup valve 1, hand pump 7, hand in the measurement part of end-cover explosion-proof pressometer
Close pressure gauge 11 and stop valve 12 are constituted, and there is the first connecting conduit 10-1 perpendicular to pedestal 13 in 9 bottom of lubricating cup, passes through weldering
It connecing and is fixed on pedestal 13, the first connecting conduit 10-1, which is parallel in pedestal 13, wears another second connecting conduit 10-2,
Second both ends connecting conduit 10-2 pass through nut and are connected separately with the 7th connecting conduit 10-7 and the 8th connecting conduit 10-8, the
Seven connecting conduit 10-7 and the 8th connecting conduit 10-8 are each perpendicular to pedestal 13 and are parallel to the first connecting conduit 10-1, the 7th
The top of connecting conduit 10-7 and the 8th connecting conduit 10-8 are respectively fixed with check valve 6 by nut, wherein the 7th connection is led
Check valve 6 above pipe 10-7 connects measurement zone part, and the check valve 6 above the 8th connecting conduit 10-8 connects precision pressure gauge
11；8th connecting conduit 10-8 of 11 bottom of precision pressure gauge reconnects third connecting conduit 10-3, third connecting conduit
10-3 with connect the second connecting conduit 10-2 of lubricating cup (9) into an angle of 90 degrees, the third connecting conduit 10-3 other end connects stop valve
12, so that stop valve 12 is connected with precision pressure gauge 11；The third of the connection precision pressure gauge 11 and stop valve 12
The center connecting conduit 10-3 is hollow, wears with the 4th connecting conduit 10-4 of 7 tail portion of hand pump and connects fixation, the first connecting conduit
10-1, the second connecting conduit 10-2, third connecting conduit 10-3, the 4th connecting conduit 10-4, the 7th connecting conduit 10-7 and
It is interconnected between eight connecting conduit 10-8, hand pump 7 and measurement zone, lubricating cup 9, precision pressure gauge 11 are placed in parallel in pedestal 13
On；Hand lifts 8 bottoms of pump and is placed in inside pedestal 13, and the hand lifts 8 bottoms of pump and is provided with the company of the 5th connecting conduit 10-5 and the 6th
Conduit 10-6 two are connect, the 5th connecting conduit 10-5 and the 6th connecting conduit 10-6 are 90 degrees to each other setting, and connection direction is parallel
The 7th connecting conduit 10-7 of measurement zone bottom is connect with the 5th connecting conduit 10-5 of stop valve 12 in precision pressure gauge 11, even
Connect be oriented parallel to measurement zone, lubricating cup 9 and precision pressure gauge 11 the 6th connecting conduit 10-6 connect 9 bottom of lubricating cup first connect
Conduit 10-1 is met, is connected so that hand lifts pump 8 with measurement zone and lubricating cup 9.
In other words, two end connections of measurement zone part and precision pressure gauge 11 for same conduit, pressure balance, i.e.,
The numerical value that precision pressure gauge 11 is shown is the explosion-proof pressure of measurement zone end cap 15 to be measured.This design will original immeasurablel end
Lid explosion-proof pressure is intuitively shown by the data on the connected precision pressure gauge 11 of the conduit other end for connecting end cap 15 to be measured
Come, so that the specific value of its explosion-proof pressure can be tested in the capacitor raw material stage, and combines finished product capacity test data
End-cover explosion-proof pressure criteria is formulated, without being tested the security performance to determine capacitor again after capacitor finished product is made
Whether qualified, it is bad and the cost scrapped wastes both to have reduced the capacitor due to caused by end-cover explosion-proof performance is bad, can also be into one
Step ensures the security performance and reliability of polypropylene film capacitor.At the same time, making to press to make according to piston type presses principle to set
Meter, make pressure it is time saving and energy saving, that is, measure when it is convenient and strength-saving, high-efficient, economic cost is low.
In addition, the check valve 6 of end-cover explosion-proof pressometer measurement zone and the design of precision pressure gauge bottom, it can be ensured that medium
Oil only flows from the bottom up in compression and tensional state, this design can effectively prevent Medium Oil when test to draw due to universal
The influence of power and independently flow back, so as to cause precision pressure gauge 11 reading become smaller, influence final measurement result.It is i.e. anti-in end cap
The check valve 6 that detonation pressure force measurement device measurement zone and precision pressure gauge bottom are designed can ensure that the accurate of surveyed end-cover explosion-proof pressure
Property.And hand pump 7 and hand lift the design that pump 8 is provided simultaneously with, but also when measuring polypropylene film capacitor end cap explosion-proof pressure,
8 bigness scales of pump first can be lifted with hand, the pressure needed for hand lifts pump 8 increases to when costing power and lifting, at this time the explosion-proof pressure of end cap to be measured
Critical value has been arrived, has then been measured again with the fine tuning of hand pump 7, fine setting scope is wide.To sum up, hand lifts pump 8 and the combination of hand pump 7 and makes
With can further promote the stability and measurement accuracy of the measurement of the end-cover explosion-proof pressometer.
And the measurement zone part of the end-cover explosion-proof pressometer is by hollow tabletting 16, end cap to be measured 15, upper anchor ear 2, close
The components such as seal 17, oil pressure slot 3, lower anchor ear 4, gasket 18 and connection collet 5 are constituted.Connection collet 5 is by being welded and fixed
On check valve 6, gasket 18 is first first placed on connection collet 5 when measurement, then place and 15 correspondingly-sized of end cap to be measured
Oil pressure slot 3, then by 4 sets of the lower anchor ear junctions in connection collet 5, gasket 18 and oil pressure slot 3, and by lower anchor ear 4
Screw tightening fix.The sealing ring 17 of bayonet placement and 3 correspondingly-sized of oil pressure slot is corresponded in 3 inside edge of oil pressure slot again, then
End cap 15 to be measured is placed in the oil pressure slot 3 for having placed sealing ring 17, then places correspondingly-sized above end cap 15 to be measured
Hollow tabletting 16, finally by 2 sets of upper anchor ear in hollow tabletting 16, the junction of end cap to be measured 15 and oil pressure slot 3, and by upper
Screw tightening on anchor ear 2 is fixed.Wherein oil pressure slot 3, sealing ring 17, upper anchor ear 2 and hollow tabletting 16 are both designed as removable
Type is unloaded, oil pressure slot 3, sealing ring 17, upper anchor ear 2 and the hollow tabletting of correspondingly-sized can be selected according to the diameter of end cap to be measured
16, therefore this end cap explosion-proof pressure measuring appliance is suitable for the measurement of all size end-cover explosion-proof pressure.In addition, the end-cover explosion-proof pressure
Two of the measurement zone of measuring appliance are detachably connected mouth, and not only design has upper anchor ear 2 and lower anchor ear 4, can be fixed each in measurement
Components prevent components when test to be subjected to displacement and influence measurement accuracy；Meanwhile being also designed with 17/ gasket of sealing ring
18, the leakproofness of entire measurement zone can be promoted, to promote the measurement accuracy of whole equipment.
In addition, the measurement display portion of the end-cover explosion-proof pressometer mainly by connecting lead wire 19, installation inserted sheet 20, to
Surveying end cap 15(includes components therein --- exit 21, rivet 22, copper foil 23), copper wire 24, battery 25, display lamp 26 etc.
Components are constituted.Wherein connecting lead wire 19 has three, has one end of two connecting lead wires 19 to be crimped with installation inserted sheet 20, installation
To the exit 21 of end cap 15 to be measured, piece solderless wrapped connection display lamp 26 of the other end, a solderless wrapped connection battery 25 wherein one end, and another
The both ends difference solderless wrapped connection display lamp 26 of the connecting lead wire 19 of installation inserted sheet 20 and the other end of battery 25 are not crimped.Then copper wire is used
24 are welded in the punching press point of 22 tail portion of rivet of 23 lower section of copper foil of end-cap assembly 15, i.e., by welding copper wire 24 for end cap to be measured
15 two exits 21 are connected, and end cap 15 to be measured, connecting wire 19, battery 25, display lamp 26 form closed circuit at this time,
26 lamp of display lamp is bright.Lead to the moment that rivet 22 and copper foil 23 disengage in end cap, 26 institute of display lamp when application pressure is gradually increased
It opens a way in circuit, display lamp 26 will extinguish moment, and the display numerical value of precision pressure gauge 11 is the explosion-proof of end cap 15 to be measured at this time
Pressure.To sum up, the design of display lamp 26 is conducive to the time that accurate judgement 15 inner rivet 22 of end cap to be measured is disengaged with copper foil 23
Node, rather than not only judge by the sound that ear listens rivet 22 to disengage with copper foil 23, accuracy is higher, that is, is conducive to
Promote the measurement accuracy of the end-cover explosion-proof pressometer.
The working principle of the invention: this is a kind of measuring appliance of end-cover explosion-proof pressure, lubricating cup valve 1 is opened, toward in lubricating cup 9
Medium Oil is filled, left-handed 7 handwheel of hand pump makes it full of Medium Oil, closes lubricating cup valve 1, open other valves, upper pushing hand
Pump 8 is lifted, is made in compacting pressure table 11 full of Medium Oil, when costing power wait be depressed into and lift, then with the fine tuning of hand pump 7 measurement to showing
Show that lamp 26 extinguishes, numerical value shown by precision pressure gauge 11 is the explosion-proof pressure value of end cap to be measured at this time.
Claims (6)
1. a kind of polypropylene film capacitor end cap explosion-proof pressure measuring appliance, it is characterized in that: include measurement part, measurement zone part,
Measure display portion and pedestal (13)；
Pump (8), lubricating cup (9), precision pressure gauge (11) are lifted by lubricating cup valve (1), hand pump (7), hand and is cut in the measurement part
Disconnected valve (12) are constituted, and lubricating cup (9) bottom is equipped with the first connecting conduit (10-1) perpendicular to pedestal (13), solid by welding
The second connecting conduit (10-2) is worn due on pedestal (13), first connecting conduit (10-1) is parallel in pedestal (13),
The both ends two connecting conduits (10-2) pass through nut and are connected separately with the 7th connecting conduit (10-7) and the 8th connecting conduit (10-
8), the 7th connecting conduit (10-7) and the 8th connecting conduit (10-8) are each perpendicular to pedestal (13) and are parallel to the first connection
Conduit (10-1) is respectively fixed with list by nut in the top of the 7th connecting conduit (10-7) and the 8th connecting conduit (10-8)
To valve (6), wherein the check valve (6) above the 7th connecting conduit (10-7) connects measurement zone part, the 8th connecting conduit (10-
8) check valve (6) above connects precision pressure gauge (11)；8th connecting conduit (10- of precision pressure gauge (11) bottom
8) third connecting conduit (10-3) is reconnected, third connecting conduit (10-3) and the second connecting conduit (10- for connecting lubricating cup (9)
2) at an angle of 90 degrees, third connecting conduit (10-3) other end connects stop valve (12), so that stop valve (12) and accurate pressure
Power table (11) is connected；Center third connecting conduit (10-3) of connection precision pressure gauge (11) and stop valve (12)
It is hollow, it is worn with the 4th connecting conduit (10-4) of hand pump (7) tail portion and connects fixation, the first connecting conduit (10-1), the second connection
Conduit (10-2), third connecting conduit (10-3), the 4th connecting conduit (10-4), the 7th connecting conduit (10-7) and the 8th connection
It is interconnected between conduit (10-8), hand pump (7) and measurement zone, lubricating cup (9), precision pressure gauge (11) are placed in parallel in pedestal
(13) on；Hand lifts pump (8) bottom and is placed in pedestal (13) inside, and the hand lifts pump (8) bottom and is provided with the 5th connecting conduit
(10-5) and the 6th connecting conduit (10-6) two, the 5th connecting conduit (10-5) and the 6th connecting conduit (10-6) are each other in 90
Degree setting, connection are oriented parallel to precision pressure gauge (11) and connect measurement zone with the 5th connecting conduit (10-5) of stop valve (12)
7th connecting conduit (10-7) of bottom, connection are oriented parallel to the 6th company of measurement zone, lubricating cup (9) and precision pressure gauge (11)
Connect first connecting conduit (10-1) of conduit (10-6) connection lubricating cup (9) bottom so that hand lift pump (8) and measurement zone and
Lubricating cup (9) is connected；
The measurement zone part by upper anchor ear (2), oil pressure slot (3), lower anchor ear (4), connection collet (5), hollow tabletting (16) and
End cap (15) to be measured is constituted, and connection collet (5) is fixed by welding on check valve (6), is placed on the connection collet (5)
With the oil pressure slot (3) of end cap to be measured (15) correspondingly-sized, the lower anchor ear (4) covers the company in connection collet (5) and oil pressure slot (3)
Place is met, and is fixed by the screw tightening on lower anchor ear (4), the hollow tabletting of correspondingly-sized is placed above end cap to be measured (15)
(16), upper anchor ear (2) is covered in the junction of hollow tabletting (16), end cap to be measured (15) and oil pressure slot (3), and passes through upper anchor ear
(2) screw tightening on is fixed；
The measurement display portion is by connecting lead wire (19), installation inserted sheet (20), copper wire (24), battery (25) and display lamp (26)
Constitute, wherein connecting lead wire (19) be equipped with three, respectively the first connecting lead wire, the second connecting lead wire, third connecting lead wire, institute
State the first connecting lead wire, one end of the second connecting lead wire be crimped with installation inserted sheet (20), first connecting lead wire it is another
It holds solderless wrapped connection display lamp (26), the second connecting lead wire solderless wrapped connection battery (25) wherein one end, and does not crimp the third connection of installation inserted sheet
Both ends difference solderless wrapped connection display lamp (26) of lead and the other end of battery (25), the copper wire (24) are welded in end cap to be measured (15)
Copper foil (23) below rivet (22) tail portion punching press point, i.e., by weld copper wire (24) two of end cap to be measured (15) are drawn
Outlet (21) is connected, and end cap to be measured (15), connecting wire (19), battery (25), display lamp (26) are formed closed circuit, shown
Show that lamp (26) lamp is bright；When the moment that rivet (22) in end cap and copper foil (23) disengage, circuit open circuit where display lamp (26), display
Lamp (26) will extinguish moment, and the display numerical value of precision pressure gauge (11) is the explosion-proof pressure of end cap to be measured (15) at this time.
2. a kind of polypropylene film capacitor end cap explosion-proof pressure measuring appliance as described in claim 1, it is characterized in that: wherein the 7th
Needle valve (14) are installed by attaching nut in connecting conduit (10-7) and the 8th connecting conduit (10-8).
3. a kind of polypropylene film capacitor end cap explosion-proof pressure measuring appliance as described in claim 1, it is characterized in that: the oil pressure
Slot (3) inside edge corresponds to the sealing ring (17) of bayonet placement and oil pressure slot correspondingly-sized.
4. a kind of polypropylene film capacitor end cap explosion-proof pressure measuring appliance as described in claim 1, it is characterized in that: the oil pressure
Slot (3), sealing ring (17), upper anchor ear (2) and hollow tabletting (16) are detachable.
5. a kind of polypropylene film capacitor end cap explosion-proof pressure measuring appliance as described in claim 1, it is characterized in that: the measurement
Two of area part are detachably connected mouth, and one is set to oil pressure slot (3), another is set in connection collet (5).
6. a kind of polypropylene film capacitor end cap explosion-proof pressure measuring appliance as described in claim 1, it is characterized in that: the connection
Gasket (18) are placed on collet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910507010.7A CN110108572A (en) | 2019-06-12 | 2019-06-12 | Polypropylene film capacitor end cap explosion-proof pressure measuring appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910507010.7A CN110108572A (en) | 2019-06-12 | 2019-06-12 | Polypropylene film capacitor end cap explosion-proof pressure measuring appliance |
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| CN110108572A true CN110108572A (en) | 2019-08-09 |
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ID=67494777
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910507010.7A Pending CN110108572A (en) | 2019-06-12 | 2019-06-12 | Polypropylene film capacitor end cap explosion-proof pressure measuring appliance |
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| CN (1) | CN110108572A (en) |
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