CN201716185U - Exhaust hole plugging device with pressing and sealing structure - Google Patents
Exhaust hole plugging device with pressing and sealing structure Download PDFInfo
- Publication number
- CN201716185U CN201716185U CN 201020214991 CN201020214991U CN201716185U CN 201716185 U CN201716185 U CN 201716185U CN 201020214991 CN201020214991 CN 201020214991 CN 201020214991 U CN201020214991 U CN 201020214991U CN 201716185 U CN201716185 U CN 201716185U
- Authority
- CN
- China
- Prior art keywords
- engine
- test
- vent port
- hole
- face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Testing Of Engines (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model provides an exhaust hole plugging device with a pressing and sealing structure, belonging to the field of a piston type engine. The exhaust hole plugging device is characterized in that the end face of the exhaust hole of the engine is externally provided with a test seat of a measuring mechanism; one side of the test seat is provided with a first concave hole, and the bottom of the first concave hole is provided with a second through hole; a first concave hole is internally provided with a plugging shaft piece; the front end of the plugging shaft piece is contacted with the end face of the exhaust hole of the engine, and the tail end thereof is fixedly connected with the test seat by the second through hole; the front end of the plugging shaft piece is provided with an end face sealing structure, and the tail end thereof is provided with an elastic pressure component; the plugging shaft piece shaft body is internally provided with a secondary test air passage; and one end of the secondary test air passage is communicated with the exhaust hole of the engine, and the other end thereof is communicated with a secondary test gas passageway pipeline of a measuring mechanism or an exhausting pressure test sensor of the engine. The exhaust hole plugging device supplies a gas circuit passageway for detecting the exhausting pressure of the engine, seals and plugs the end face of the exhaust hole, can automatically and accurately the related content for detecting the exhausting pressure, and can be widely used in the field of the test of the engine of a motor vehicle.
Description
Technical field
The utility model belongs to the piston engine field, relates in particular to a kind of packoff that is used for test machine motor vehicle engine operating mode.
Background technology
Engine need be tested each ingredient of engine when dispatching from the factory detection or maintenance post debugging.
Traditional Engine Block Test all is based on engine thermal and has a try and test, and therefore can't carry out the on-line quick detection of assembly line, and can produce large quantity of exhaust gas and noise, and environment is polluted.
Development along with the computing machine online measuring technique, the cold test method that a kind of engine now newly occurred, by the accurate controlled servomotor of an external rotating speed, drag the running of engine speed stabilizing, at each position of engine, various detecting sensors are set simultaneously, by the parameters of monitoring engine in operation process, judge the working condition of each mechanical composition part of engine, thereby reach the purpose of detection of engine.
To the cold test of engine the time, all test processs occur in engine and are dragged in the process of rotation by servomotor.Servomotor is under test computer control, drag engine rotation according to predefined different rotating speeds, in the engine rotation process, test computer is according to the action of test request control engine actuator, high speed acquisition comes from the engine signal of engine sensor and test board sensor simultaneously, and signal carried out real-time analysis and processing, judge whether engine exists assembling defective or parts fault.
In every test event of engine cold test, the discharge pressure test is a requisite test item.
When doing this test, engine is dragged to 150rpm when (concrete rotating speed needs engine calibrating test to determine), and the discharge pressure that test the exhaust outlet place this moment is calculated valve opening/off-position, valve leak amount etc.
The purpose of this test mainly is test exhaust system (vent valve/guide rod/exhausr port/O-ring seal/tappet an etc.) compression consistance, detects exhaust timing, valve closing open position.The fault that can detect comprises: vent valve/seat leakage, camshaft phase mistake, hydraulic tappet the is too soft defective relevant with the valve phase place.
Motor car engine itself at some type has exhaust hole, when the discharge pressure to engine detects, needs shutoff vent port end face; Simultaneously in order to satisfy the requirement of online detection, need again that measuring mechanism can be realized fast, the discharge pressure detected value of the acquisition engine of good seal.
Because due to the physical construction of engine, the exit of its vent port is an end face usually, so that the keying of exhaust valve, simultaneously, in order to guarantee the sealing effectiveness of exhaust valve, prevent reverse air inlet, the precision (smooth finish that promptly is commonly called as) of vent port end face machining is also had certain requirement.
Cold survey work to engine brings a pair of contradiction thus, should shutoff to the end face of vent port, make again measuring mechanism can be fast, good seal ground carries out gas circuit with the vent port end face and is connected, so, design and a kind ofly can carry out shutoff the vent port end face, the vent port plugging device that has the engine back pressure sense channel again becomes the key that solves discharge pressure test in the engine cold state test.
The utility model content
Technical problem to be solved in the utility model provides a kind of vent port plugging device that has the compression seal structure, its discharge pressure for engine detects when gas channels is provided, end face to vent port has carried out the sealing shutoff again, set O-ring seal is convenient to change, the vent port profile of block head and tested engine is fitted, gas leakage can be effectively prevented behind the fitted seal circle, the related content that discharge pressure detects can be realized automatically, exactly.
The technical solution of the utility model is: a kind of vent port plugging device that has the compression seal structure is provided, comprise the second test gas passage pipeline of measuring mechanism, measuring mechanism and the vent port end face of engine, it is characterized in that: corresponding position is provided with the test bench of a measuring mechanism outside the vent port end face of engine; Described test bench is provided with first shrinkage pool towards a side of engine exhaust hole end surface, and second through hole of perforation is set in the bottom of described first shrinkage pool; The one shutoff axle spare by vertical major axis structure and the crossing crux structure that constitutes of horizontal minor axis structure is set in first shrinkage pool, the head end of the vertical major axis structure of described shutoff axle spare contacts with the vent port end face of engine, vertically the end of major axis pass second through hole and test bench fixed; Head end at the vertical major axis of shutoff axle spare is provided with end face seal structure, endways and laterally between the minor axis structure, the elastic pressure member is set; In the axis body between head end to a horizontal minor axis structure of the vertical major axis structure of shutoff axle spare, a second test airway is set; One end of described second test airway is communicated with the vent port of engine, and the other end is communicated with the second test gas passage pipeline or the engine back pressure testing sensor of measuring mechanism.
The diameter of described second through hole is less than the diameter of first shrinkage pool.
End at the vertical major axis of described shutoff axle spare passes second through hole, and screw thread-nut structure is set, and the nut of the end of shutoff axle spare through being positioned at the second through hole both sides clamp/and fastening, fixed with test bench.
Described end face seal structure comprises sealed groove that is arranged on the vertical major axis structure of shutoff axle spare head end and the O-ring seals that is arranged in sealed groove.
The circle diameter of described sealed groove on the seal face plane is greater than the aperture in engine exhaust hole.
Described elastic pressure member is a spring.
The second test airway of described shutoff axle spare is connected with the second test gas passage pipeline of measuring mechanism through the rapid-acting coupling assembly.
Compared with the prior art, the utility model has the advantages that:
1. the front end at block head is provided with end face seal structure (sealed groove and O-ring seal), discharge pressure is set in block head detects gas channels, makes to seal and detect two purposes all to be achieved;
2. the vent port profile of block head and tested engine is fitted, and can effectively prevent gas leakage behind the fitted seal circle, guarantees sealing effectiveness and test result precision;
3. adopt elastic pressure to regulate block head pressure, use rapid-acting coupling join dependency gas circuit, help realizing fast detecting;
4. whole apparatus structure is succinct, is convenient to install, and consumable accessory is changed convenient, and maintenance cost is cheap.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the partial structurtes enlarged drawing of A portion among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Among Fig. 1, corresponding position is provided with the test bench 3 of a measuring mechanism outside the vent port end face 2 of engine; Test bench is provided with first shrinkage pool 4 towards a side of engine exhaust hole end surface, and second through hole 5 of perforation is set in the bottom of first shrinkage pool; The one shutoff axle spare 6 by vertical major axis structure 6-1 and the crossing crux structure that constitutes of horizontal minor axis structure 6-2 is set in first shrinkage pool, the head end of the vertical major axis structure of shutoff axle spare contacts with the vent port end face of engine, vertically the end of major axis pass second through hole and test bench fixed; Head end at the vertical major axis of shutoff axle spare is provided with end face seal structure, endways and laterally between the minor axis structure, the elastic pressure member is set; In the axis body between head end to a horizontal minor axis structure of the vertical major axis structure of shutoff axle spare, a second test airway 1 is set; One end of second test airway is communicated with the vent port of engine, and the other end is communicated with the second test gas passage pipeline or the engine back pressure testing sensor (not shown) of measuring mechanism.
As seen from the figure, the diameter of second through hole 5 is less than the diameter of first shrinkage pool 4.
End at the vertical major axis of shutoff axle spare passes second through hole, and screw thread-nut structure is set, and nut 9-1 and the 9-2 of the end of shutoff axle spare through being positioned at the second through hole both sides clamp/and fastening, fixed with test bench.
The circle diameter of described sealed groove on the seal face plane is greater than the aperture in engine exhaust hole.
Described elastic pressure member is a spring 7.
The second test airway of described shutoff axle spare is connected with the second test gas passage pipeline of measuring mechanism through rapid-acting coupling assembly 10.
Among Fig. 2, the head end of the vertical major axis structure of shutoff axle spare 6-1 contacts with the vent port end face 2 of engine, at the head end of the vertical major axis of shutoff axle spare end face seal structure is set.
Described end face seal structure comprises sealed groove 8-1 that is arranged on the vertical major axis structure of shutoff axle spare head end and the O-ring seals 8 that is arranged in sealed groove.
Because the technical program adopts spring compression shutoff axle spare, two setting nut adjustable springs elasticities, the structure of block head is an O shape ring-type, and the through hole of second test ventilating shaft that is used for shutoff is by the direct follow-up measuring unit of rapid-acting coupling; So when engine entered state to be checked, the second test ventilating shaft cooperated O shape circle to compress the vent port end face of engine under the pressure of spring, rapid-acting coupling is docked with the vent port of engine by the through hole in the second test ventilating shaft.
The vent port profile of the front end of block head and tested engine is fitted, and can effectively prevent gas leakage behind the fitted seal circle, so realization testing goal that can be automatic accurate.
If can change easily during the wearing and tearing of O shape circle.
The utility model can be widely used in the field tests of motor car engine.
Claims (7)
1. a vent port plugging device that has the compression seal structure comprises the second test gas passage pipeline of measuring mechanism, measuring mechanism and the vent port end face of engine, it is characterized in that:
Corresponding position is provided with the test bench of a measuring mechanism outside the vent port end face of engine;
Described test bench is provided with first shrinkage pool towards a side of engine exhaust hole end surface, and second through hole of perforation is set in the bottom of described first shrinkage pool;
The one shutoff axle spare by vertical major axis structure and the crossing crux structure that constitutes of horizontal minor axis structure is set in first shrinkage pool, the head end of the vertical major axis structure of described shutoff axle spare contacts with the vent port end face of engine, vertically the end of major axis pass second through hole and test bench fixed;
Head end at the vertical major axis of shutoff axle spare is provided with end face seal structure, endways and laterally between the minor axis structure, the elastic pressure member is set;
In the axis body between head end to a horizontal minor axis structure of the vertical major axis structure of shutoff axle spare, a second test airway is set;
One end of described second test airway is communicated with the vent port of engine, and the other end is communicated with the second test gas passage pipeline or the engine back pressure testing sensor of measuring mechanism.
2. according to the described vent port plugging device that has the compression seal structure of claim 1, it is characterized in that the diameter of the diameter of described second through hole less than first shrinkage pool.
3. according to the described vent port plugging device that has the compression seal structure of claim 1, it is characterized in that passing second through hole at the end of the vertical major axis of described shutoff axle spare, screw thread-nut structure is set, the nut of the end of shutoff axle spare through being positioned at the second through hole both sides clamp/and fastening, fixed with test bench.
4. according to the described vent port plugging device that has the compression seal structure of claim 1, it is characterized in that described end face seal structure comprises sealed groove that is arranged on the vertical major axis structure of shutoff axle spare head end and the O-ring seals that is arranged in sealed groove.
5. according to the described vent port plugging device that has the compression seal structure of claim 4, it is characterized in that the aperture of the circle diameter of described sealed groove on the seal face plane greater than the engine exhaust hole.
6. according to the described vent port plugging device that has the compression seal structure of claim 1, it is characterized in that described elastic pressure member is a spring.
7. according to the described vent port plugging device that has the compression seal structure of claim 1, it is characterized in that the second test airway of described shutoff axle spare is connected with the second test gas passage pipeline of measuring mechanism through the rapid-acting coupling assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020214991 CN201716185U (en) | 2010-06-03 | 2010-06-03 | Exhaust hole plugging device with pressing and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020214991 CN201716185U (en) | 2010-06-03 | 2010-06-03 | Exhaust hole plugging device with pressing and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201716185U true CN201716185U (en) | 2011-01-19 |
Family
ID=43462189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020214991 Expired - Lifetime CN201716185U (en) | 2010-06-03 | 2010-06-03 | Exhaust hole plugging device with pressing and sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201716185U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134685A (en) * | 2011-11-25 | 2013-06-05 | 中国航空工业集团公司沈阳发动机设计研究所 | Testing and stationing device of shunting ring of intermediate casing of fan test piece of engine |
| CN110631768A (en) * | 2019-09-04 | 2019-12-31 | 天永机械电子（太仓）有限公司 | Sealing device for engine plugging with self-checking air pressure existence |
-
2010
- 2010-06-03 CN CN 201020214991 patent/CN201716185U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134685A (en) * | 2011-11-25 | 2013-06-05 | 中国航空工业集团公司沈阳发动机设计研究所 | Testing and stationing device of shunting ring of intermediate casing of fan test piece of engine |
| CN103134685B (en) * | 2011-11-25 | 2015-07-29 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of engine blower testpieces Middle casing flow splitter test cloth point apparatus |
| CN110631768A (en) * | 2019-09-04 | 2019-12-31 | 天永机械电子（太仓）有限公司 | Sealing device for engine plugging with self-checking air pressure existence |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7624624B2 (en) | Pump assembly and method for leak detection of fluid system | |
| CN203490035U (en) | A vacuum actuator online detecting apparatus | |
| CN102865979A (en) | Testing system and testing method for air tightness of main valve body component of 120 valve | |
| CN201716185U (en) | Exhaust hole plugging device with pressing and sealing structure | |
| CN103123301B (en) | Multifunctional valve dynamic detection device | |
| CN205533544U (en) | Take fault self diagnosis's pneumatic cylinder position to follow system | |
| CN106907523A (en) | A kind of method for predicting valve leak | |
| CN206235442U (en) | A kind of pipeline package seal checker | |
| CN101476965A (en) | Gauge head for detecting airtightness of engine air valve and valve seat | |
| CN105953985A (en) | Lithium battery electrode cover plate helium mass spectrum leak detection method | |
| CN102607826B (en) | Anti-surging valve performance testing table based on PLC (Programmable Logic Controller) and testing method | |
| CN103759946A (en) | Testing device for testing PTO output capacity of engine | |
| US20150082869A1 (en) | Detection method and detection device for pipelines in machine-controlled leakage and compliance tests of anesthetic machine | |
| CN205038026U (en) | Sealed integrality of EMUs carbon slide air flue and continuity test device that flows | |
| CN202693236U (en) | Pneumatic-type EGR (exhaust gas recycle) valve detecting device | |
| CN214787748U (en) | EGR valve on-line measuring platform | |
| CN111238797B (en) | Method for checking and accepting seal surface of check valve and regulating valve after online grinding | |
| CN111121927B (en) | Water inlet detection method of electronic gas meter | |
| CN202547895U (en) | Device for quickly detecting gas leakage of gas circuit | |
| CN201352166Y (en) | Gauge head for detecting gas tightness between an engine valve and a valve seat | |
| CN219064842U (en) | Breaking hammer valve seat assembly test workbench | |
| CN212360372U (en) | Portable hydraulic system pressure switch detects and debugging apparatus | |
| CN201075013Y (en) | Device for detecting hole-drilling permeability of glass drilling machine | |
| CN204924548U (en) | Anti -blow detecting system | |
| CN204064699U (en) | High-pressure wash machine detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: W-LBEDA HIGH TECH. DEVELOP. CO., LTD. Free format text: FORMER NAME: SHANGHAI W-IBEDA HIGH TECH. DEVE. CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201203 Shanghai city Pudong New Area fanchun Road No. 400 Building 1 floor 301-206 room 3 Patentee after: W-Lbeda High Tech. Develop. Co., Ltd. Address before: 201203, Lane 912, Lane 18, blue wave road, Zhangjiang hi tech park, Shanghai, Pudong New Area Patentee before: Shanghai W-ibeda High Tech. Deve. Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201203 Shanghai city Pudong New Area fanchun Road No. 400 Building 1 floor 301-206 room 3 Patentee after: According to Shanghai science and technology group Limited by Share Ltd Address before: 201203 Shanghai city Pudong New Area fanchun Road No. 400 Building 1 floor 301-206 room 3 Patentee before: W-Lbeda High Tech. Develop. Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110119 |