CN107449564B - A kind of hybrid vehicle P2 housing seal detection device - Google Patents
A kind of hybrid vehicle P2 housing seal detection device Download PDFInfo
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- CN107449564B CN107449564B CN201710625219.4A CN201710625219A CN107449564B CN 107449564 B CN107449564 B CN 107449564B CN 201710625219 A CN201710625219 A CN 201710625219A CN 107449564 B CN107449564 B CN 107449564B
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- main body
- bushing
- sealing ring
- annular step
- channel
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a kind of hybrid vehicle P2 housing seal detection devices, including main body, the outer diameter of the main body and the internal diameter of the bearing hole of P2 shell match, successively snare has the first sealing ring and the second sealing ring to the outer circumference surface of the main body from lower to upper, the inside of the main body offers channel, the one end in the channel extends the main body and forms the first opening, and the other end in the channel extends the main body and forms the second opening.Compared with prior art, the present invention uses the design structure of multilayer rubber sealing ring, ensure that with the matched leakproofness of bearing hole wall, structure is firm, high sealing reliability, it solves the risk of P2 shell leak, while conveniently moving of the present invention, can individually detect P2 housing seal, it is detected again after not needing P2 shell assembly other component, detection efficiency is improved, detection when can satisfy batch production P2 shell provides guarantee for mass production hybrid vehicle.
Description
Technical field
The present invention relates to automobile detection apparatus technical field, especially a kind of hybrid vehicle P2 housing seal detection
Device.
Background technique
P2 technical solution is one kind of automobile severe hybrid power technical solution, and " P " in P2 represents driving motor mixed
Close the position (Position) in dynamical system, " 2 " represent after this position is internal combustion engine, before gearbox, so P2 skill
Art scheme is exactly to increase a hybrid power module between the engine and the gearbox, referred to as " P2 module ".
P2 module realizes oil, electricity mixes as electric drive and the intermediate transferring structure of coupling engine power
The functions such as power output and energy regenerating, P2 shell are one of main parts sizes in hybrid vehicle P2 module.
There are some tiny cavity channels in the design of P2 enclosure interior, when P2 module works, is filled in cavity channel cold
But liquid cools down for P2 module, so the air-tightness of P2 shell is extremely important.
P2 shell structure is relative complex, water pipeline be arranged in on the matched bearing hole wall of P2 rotor, the bearing hole wall
Go up existing step surface, through-hole at also one.When detecting P2 shell air-tightness, the through-hole on bearing hole wall should be avoided, also to be arranged
Except the leakage at detection device and water pipeline matching, the air-tightness of P2 shell itself could be accurately measured.
All by other composition P2 moulds such as water jacket, rotor assembly, field frame assembly when current most of P2 housing seals test
After the components assembly of block is more complete, pressure maintaining is tested after injecting water using external inlet tube and outlet tube.
The scheme of this integrated testability has a following deficiency: after discovery leakage bad accurate judgement be the leakage of P2 shell or its
He leaks matching parts；Use the very slight leakage of more difficult discovery in the water pressure maintaining test short time；Test needs to assemble other
Accessory, assembly is bad also to will affect test result, and working efficiency is low, and reliability is also poor.
Summary of the invention
The object of the present invention is to provide a kind of hybrid vehicle P2 housing seal detection devices, to solve the prior art
In P2 housing seal test problems, it can directly be surveyed in the case where P2 shell does not assemble other matching blocks
Examination, while being designed by reasonable sealing structure and being tested using air pressure, guarantee the reliability and accuracy of test.
The present invention provides a kind of hybrid vehicle P2 housing seal detection device, including main body, the main body
The internal diameter of outer diameter and the bearing hole of P2 shell matches, and successively snare has the first sealing to the outer circumference surface of the main body from lower to upper
Circle and the second sealing ring, the inside of the main body offer channel, and the one end in the channel extends the main body and forms first
Opening, the other end in the channel extend the main body and form the second opening, and second opening is located at first sealing
Between circle and the second sealing ring.
Hybrid vehicle P2 housing seal detection device as described above, wherein preferably, the main body is under
It gradually tapers up to form first annular step face, the second annular step surface, third annular step surface and fourth annular platform toward top external diameter
Terrace.
Hybrid vehicle P2 housing seal detection device as described above, wherein further include having first preferably
Bushing, interior the first accommodating cavity for being equipped with bottom opening of first bushing, internal diameter and the main body of first accommodating cavity
Outer diameter matches, and the bottom of first accommodating cavity is recessed with the 5th annular step surface, when first bushing assembles, described the
Five annular step surfaces press on the fourth annular step surface, and first sealing ring is clipped on the third annular step surface
Between the bottom surface of first bushing.
Hybrid vehicle P2 housing seal detection device as described above, wherein preferably, outside the main body
Periphery is concavely provided with cyclic annular fitting groove, is equipped with third sealing ring in the ring-type fitting groove.
Hybrid vehicle P2 housing seal detection device as described above, wherein further include the second lining preferably
Set, interior the second accommodating cavity for being equipped with bottom opening of second bushing, the internal diameter of second accommodating cavity and first bushing
Outer diameter match, on the outer circumference surface of first bushing formed the 6th annular step surface, second bushing assemble when, institute
The second sealing ring is stated to be clipped between the 6th annular step surface and the bottom surface of second bushing.
Hybrid vehicle P2 housing seal detection device as described above, wherein preferably, the body top
Equipped with internal thread hole, the first bolt through-hole is offered at the top of first bushing, offers the second spiral shell at the top of second bushing
Bolt via hole, first bolt through-hole, second bolt through-hole and the internal thread hole are coaxially set.
Hybrid vehicle P2 housing seal detection device as described above, wherein preferably, the channel includes
First passage and second channel, the first passage extend along the axis direction of the main body, and the first passage is in described
The bottom end face of main body formed it is described first opening, the second channel perpendicular to the main body axis direction, described second
The one end in channel is connected to the first passage, and the other end of the second channel is in forming institute on the outer circumference surface of the main body
State the second opening.
Compared with prior art, the present invention uses the design structure of multilayer rubber sealing ring, overcomes P2 shell bearing hole
The matched problem of the complex-shaped bad sealing of wall, ensure that with the matched leakproofness of bearing hole wall, structure is firm, sealing reliability
Height solves the risk of P2 shell leak, while conveniently moving of the present invention, can individually detect P2 housing seal, not need P2
It is detected again after shell assembly other component, improves detection efficiency, detection when can satisfy batch production P2 shell is mass
Production hybrid vehicle provides guarantee.
Detailed description of the invention
Fig. 1 is the integrally-built axonometric drawing of the present invention；
Fig. 2 is the cross-sectional view of A-A in Fig. 1；
Fig. 3 is the axonometric drawing under assembled state of the invention；
Fig. 4 is enlarged drawing at the A of Fig. 3.
Description of symbols:
1- main body, the first sealing ring of 2-, the second sealing ring of 3-, the channel 4-, 41- first passage, 42- second channel, 5-
One opening, 6- second are open, 7- first annular step face, the second annular step surface of 8-, 9- third annular step surface, 10- the 4th
Annular step surface, the first bushing of 11-, the first accommodating cavity of 12-, the 5th annular step surface of 13-, 14- ring-type fitting groove, 15- third
Sealing ring, the second bushing of 16-, the 6th annular step surface of 17-, 18- venthole, the first bolt through-hole of 19-, 20- the second bolt mistake
Hole, 21- internal thread hole, the second accommodating cavity of 22-.
100-P2 shell, 200- water pipeline, 300- bearing hole, 400- gas-tpe fitting, 500- bolt part.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to
Limitation of the present invention.
As shown in Figures 1 to 4, the embodiment provides a kind of hybrid vehicle P2 housing seal detections to fill
Set, including main body 1, the main body 1 be in cylindrical structure, the bearing hole 300 of the outer diameter and P2 shell 100 of the main body 1 it is interior
Diameter matches, and successively snare has the first sealing ring 2 and the second sealing ring 3, the master to the outer circumference surface of the main body 1 from lower to upper
When body 1 is assembled to the bearing hole 300 of P2 shell 100, the water pipeline 200 of the P2 shell 100 is located at first sealing ring 2
Between second sealing ring 3, first sealing ring 2, second sealing ring 3, the main body 1 outer circumference surface and
300 wall surface of bearing hole of the P2 shell 100 collectively constitutes a confined space, high sealing reliability, and avoids bearing hole
Lead to the hole site on 300, the inside of the main body 1 offer channel 4, and the formation of main body 1 is extended in the one end in the channel 4
First opening 5, it is preferable that at the first opening 5, it is equipped with gas-tpe fitting 400, the present embodiment selects gas pressurized detection, than
Water pressurization in background technique is more convenient, clean, sanitary, even if very slight leakage, can also detected, be more suitable band
There is the assembling factory of gas source to use；The other end in the channel 4 extends the main body 1 and forms the second opening 6, and described second opens
Mouth 6 is between first sealing ring 2 and the second sealing ring 3.
After P2 shell 100 is connect with this detection device, needs to access high pressure gas by gas-tpe fitting 400 and inject P2 shell
100 water pipeline 200, while 400 external Air Valve Control modules of gas-tpe fitting, for control injection gas pressure with
And the variation of air pressure in the water pipeline 200 of P2 shell 100 is detected within a certain period of time, and then judge whether P2 shell 100 is let out
Leakage.
Since the wall surface of the bearing hole 300 of the P2 shell 100 is equipped with step surface, in order to enable main body 1 was detecting
Cheng Zhong, good airproof performance, fixation is more firm, avoids wobble effects sealing effect from causing detection error, the main body 1 is from lower to upper
Outer diameter gradually tapers up to form first annular step face 7, the second annular step surface 8, third annular step surface 9 and fourth annular step
Face 10, the first annular step face 7, the second annular step surface 8, third annular step surface 9 and fourth annular step surface 10
The center of circle is overlapped, when the main body 1 is assemblied in the bearing hole 300 of P2 shell 100, the first annular step face 7 and the second ring
The fitting of shape step surface 8 is pressed on the step surface of bearing hole 300, so that main body 1 is more stepped up with being bonded for P2 shell 100
It gathers, better tightness.
The assembly precision and fixed degree of first sealing ring 2 and the second sealing ring 3 are most important, directly influence this
The detection accuracy and test result of detection device, the preferred fit mode of first sealing ring 2 are as follows: further include having the first bushing
11, first bushing 11 is cylinder, is equipped with the first accommodating cavity 12 of bottom opening in first bushing 11, described the
The axis of the axis of one accommodating cavity 12 and first bushing 11 is overlapped, and first accommodating cavity 12 is similarly cylindrical groove, institute
The outer diameter of the internal diameter and the main body 1 of stating the first accommodating cavity 12 matches, and the bottom of first accommodating cavity 12 is recessed with the 5th
Annular step surface 13, when first bushing 11 assembles, the 5th annular step surface 13 presses on the fourth annular step
On face 10, while the positioning of available pin is fixed, and first sealing ring 2 is clipped on the third annular step surface 9 and described the
Between the bottom surface of one bushing 11, the first sealing ring 2 is placed in the main body 1, and upper and lower surface is pressed in institute by the first bushing 11
It states in third annular step surface 9, back presses on the outside wall surface of the main body 1, and such first sealing ring 2 is just securely held
In in main body 1, influence leakproofness and detection accuracy will not be shifted because long-time uses.
In order to enhance the leakproofness between first bushing 11 and the main body 1, avoid gas from 11 He of the first bushing
It is revealed between the main body 1, the outer circumference surface of the main body 1 is concavely provided with cyclic annular fitting groove 14, in the ring-type fitting groove 14
It is equipped with third sealing ring 15, may make form confined space between the first bushing 11 and the main body 1 in this way, high pressure gas is not
It can leak out.
The preferred fit scheme of second sealing ring 3 are as follows: further include the second bushing 16, second bushing 16 is cylinder
Body, is equipped with the second accommodating cavity 22 of bottom opening in second bushing 16, the axis of second accommodating cavity 22 and described the
The axis of two bushings 16 is overlapped, and second accommodating cavity 22 is similarly cylindrical groove, the internal diameter of second accommodating cavity 22 and institute
The outer diameter for stating the first bushing 11 matches, and the 6th annular step surface 17 is formed on the outer circumference surface of first bushing 11, described
When second bushing 16 assembles, second sealing ring 3 is clipped on the 6th annular step surface 17 and second bushing 16
Between bottom surface, the second sealing ring 3 is placed on first bushing 11, and upper and lower surface is pressed in the described 6th by the second bushing 16
In annular step surface 17, back presses on the outside wall surface of first bushing 11, and such second sealing ring 3 is just securely held
In on the first bushing 11, influence leakproofness and detection accuracy will not be shifted because long-time uses.
First bushing 11 and the second bushing 16 are equipped with venthole 18, assembly in the corresponding position of second opening 6
When.The venthole 18 is aligned with second opening 6, so that pressure-air smoothly can enter P2 shell from the second opening 6
100 water pipeline 200.
In prolonged detection process, the first sealing ring 2 and the second sealing ring 3 can inevitably be had damage, for the ease of more
The first sealing ring 2 and the second sealing ring 3 are changed, and also to facilitate position and the pressure for adjusting the first bushing 11 and the second bushing 16
Clamp force, first bushing 11 and the second bushing 16 are fixed in the main body 1 by bolt part 500, specifically, the main body
1 top is equipped with internal thread hole 21, and the first bolt through-hole 19,16 top of the second bushing are offered at the top of first bushing 11
The second bolt through-hole 20 is offered, first bolt through-hole 19, second bolt through-hole 20 and the internal thread hole 21 are same
Axis setting, when assembly, after the position Primary Location of first bushing 11 and the second bushing 16 is good, bolt part 500 is passed through
It is screwed into internal thread hole 21 after first bolt through-hole 19 and the second bolt through-hole 20, tightens degree by adjusting, carrys out the lining of fine tuning first
The pressing force of set 11 and the second bushing 16 backs out bolt part 500 i.e. when needing to change the first sealing ring 2 and the second sealing ring 3
Can, it is simple and convenient.
In view of the needs of the manufacture craft of main body 1, reduce technology difficulty, the channel 4 includes first passage 41 and the
Two channels 42, the first passage 41 extend along the axis direction of the main body 1, and the first passage 41 is in the main body 1
Bottom end face formed it is described first opening 5, the second channel 42 perpendicular to the main body 1 axis direction, described second
The one end in channel 42 is connected to the first passage 41, and the other end of the second channel 42 is in the outer circumference surface of the main body 1
It is upper to form second opening 6.So in the production process, as long as carrying out hole location processing twice to main body 1 with conventional lathe
, simple process is time saving and energy saving.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (5)
1. a kind of hybrid vehicle P2 housing seal detection device, it is characterised in that: including main body (1), the main body (1)
The internal diameter of outer diameter and the bearing hole (300) of P2 shell (100) match, the outer circumference surface of the main body (1) from lower to upper according to
Secondary snare has the first sealing ring (2) and the second sealing ring (3), and the inside of the main body (1) offers channel (4), the channel
(4) one end extends the main body (1) and forms the first opening (5), and the other end of the channel (4) extends the main body
(1) the second opening (6) is formed, second opening (6) is between first sealing ring (2) and the second sealing ring (3)；
Outer diameter gradually tapers up to form first annular step face (7), the second annular step surface (8), main body (1) from lower to upper
Three annular step surfaces (9) and fourth annular step surface (10)；
Further include having the first bushing (11), the first accommodating cavity (12) of bottom opening is equipped in first bushing (11), it is described
The internal diameter of first accommodating cavity (12) and the outer diameter of the main body (1) match, and the bottom of first accommodating cavity (12) is recessed with
5th annular step surface (13), when first bushing (11) is assembled, the 5th annular step surface (13) presses on described the
In four annular step surfaces (10), first sealing ring (2) is clipped on the third annular step surface (9) and first bushing
(11) between bottom surface.
2. hybrid vehicle P2 housing seal detection device according to claim 1, it is characterised in that: the main body
(1) outer circumference surface is concavely provided with cyclic annular fitting groove (14), is equipped with third sealing ring (15) in the ring-type fitting groove (14).
3. hybrid vehicle P2 housing seal detection device according to claim 1, it is characterised in that: further include
Two bushings (16), interior the second accommodating cavity (22) for being equipped with bottom opening of second bushing (16), second accommodating cavity (22)
Internal diameter and the outer diameter of first bushing (11) match, the 6th annular is formed on the outer circumference surface of first bushing (11)
Step surface (17), when second bushing (16) is assembled, second sealing ring (3) is clipped on the 6th annular step surface
(17) between the bottom surface of second bushing (16).
4. hybrid vehicle P2 housing seal detection device according to claim 3, it is characterised in that: the main body
(1) top is equipped with internal thread hole (21), offers the first bolt through-hole (19) at the top of first bushing (11), second lining
Set (16) at the top of offer the second bolt through-hole (20), first bolt through-hole (19), second bolt through-hole (20) and
The internal thread hole (21) is coaxially set.
5. hybrid vehicle P2 housing seal detection device according to claim 1, it is characterised in that: the channel
It (4) include first passage (41) and second channel (42), the first passage (41) is prolonged along the axis direction of the main body (1)
It stretches, the bottom end face of first passage (41) the Yu Suoshu main body (1) forms first opening (5), the second channel
(42) perpendicular to the axis direction of the main body (1), one end of the second channel (42) is connected to the first passage (41),
The other end of the second channel (42) in formed on the outer circumference surface of the main body (1) it is described second opening (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710625219.4A CN107449564B (en) | 2017-07-27 | 2017-07-27 | A kind of hybrid vehicle P2 housing seal detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710625219.4A CN107449564B (en) | 2017-07-27 | 2017-07-27 | A kind of hybrid vehicle P2 housing seal detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107449564A CN107449564A (en) | 2017-12-08 |
| CN107449564B true CN107449564B (en) | 2019-06-28 |
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ID=60489195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710625219.4A Active CN107449564B (en) | 2017-07-27 | 2017-07-27 | A kind of hybrid vehicle P2 housing seal detection device |
Country Status (1)
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| CN (1) | CN107449564B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030174A (en) * | 2018-07-25 | 2018-12-18 | 无锡海核装备科技有限公司 | A kind of pressure testing tooling of multi-orifice devices |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1200896A (en) * | 1967-01-31 | 1970-08-05 | B I X Ltd | Radiographic examination of pipe joints |
| WO2002040301A1 (en) * | 2000-11-15 | 2002-05-23 | Siemens Aktiengesellschaft | Fuel tank for a motor vehicle |
| CN201757693U (en) * | 2010-08-02 | 2011-03-09 | 陆如辉 | Automobile water-cooled generator casing tightness detector |
| CN201757697U (en) * | 2008-08-18 | 2011-03-09 | 上海协昌霍宁实业发展有限公司 | Automobile turbocharger intermediate housing airtightness testing device |
-
2017
- 2017-07-27 CN CN201710625219.4A patent/CN107449564B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1200896A (en) * | 1967-01-31 | 1970-08-05 | B I X Ltd | Radiographic examination of pipe joints |
| WO2002040301A1 (en) * | 2000-11-15 | 2002-05-23 | Siemens Aktiengesellschaft | Fuel tank for a motor vehicle |
| CN201757697U (en) * | 2008-08-18 | 2011-03-09 | 上海协昌霍宁实业发展有限公司 | Automobile turbocharger intermediate housing airtightness testing device |
| CN201757693U (en) * | 2010-08-02 | 2011-03-09 | 陆如辉 | Automobile water-cooled generator casing tightness detector |
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| Publication number | Publication date |
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| CN107449564A (en) | 2017-12-08 |
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