CN109060253B - Diesel engine cylinder head tightness testing device - Google Patents
Diesel engine cylinder head tightness testing device Download PDFInfo
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- CN109060253B CN109060253B CN201811035108.9A CN201811035108A CN109060253B CN 109060253 B CN109060253 B CN 109060253B CN 201811035108 A CN201811035108 A CN 201811035108A CN 109060253 B CN109060253 B CN 109060253B
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- engine cylinder
- air inlet
- location
- cylinder head
- diesel engine
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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
- G01M3/025—Details with respect to the testing of engines or engine parts
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- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
Abstract
The invention discloses a diesel engine cylinder head tightness testing device which comprises a testing table, a positioning transmission mechanism, a fixing mechanism and an oscillation heating mechanism. The invention can make the detection device simulate the working state of the engine cylinder cover, detect the air tightness of the engine cylinder cover in real time, has more accurate and practical detection data, can conveniently test the sealing effect of the engine cylinder cover under different temperature, pressure and vibration conditions, further make record improvement and is beneficial to improving the production efficiency.
Description
Technical Field
The invention relates to the technical field of engine accessory processing equipment, in particular to the technical field of a diesel engine cylinder head tightness testing device.
Background
The cylinder cover of the engine is the part with the most complex structure and the greatest bearing of mechanical load and thermal load among all parts of the diesel engine, and is a box-shaped part with the complex structure, and an intake valve seat hole, an exhaust valve seat hole, a valve guide hole and a fuel injector mounting hole are processed on the box-shaped part. The engine is often contacted with high-temperature high-pressure gas, so that larger thermal load and mechanical load are needed to bear, oil leakage occurs when the engine cylinder cover leaks, the pressure in the engine deviates, and the engine cannot work normally. In order to ensure the product quality in the processing process, an air tightness detector is generally adopted to detect the air tightness of the engine cylinder cover, but the use environment cannot be accurately simulated, so that the air tightness in the static state is detected, and the deviation exists between test data and data in the actual use process, so that the detection effect is affected.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a device for testing the tightness of a cylinder cover of a diesel engine, which can enable a detection device to simulate the working state of the cylinder cover of the engine, detect the tightness of the cylinder cover in real time, has more accurate and practical detection data, can conveniently test the sealing effect of the cylinder cover of the engine under different temperature, pressure and vibration conditions, further make record improvement and is beneficial to improving the production efficiency.
In order to achieve the above object, the invention provides a diesel engine cylinder head tightness testing device, which comprises a testing table, a positioning transmission mechanism, a fixing mechanism and a vibration heating mechanism, wherein the positioning transmission mechanism is arranged at the top of the testing table, the positioning transmission mechanism comprises a travel guide rail, an electric sliding block, a fixed conveying plate and a positioning locking block, the top of the testing table is provided with a plurality of travel guide rails, the bottom of the fixed conveying plate is connected with the travel guide rail through a plurality of electric sliding blocks, the top of the fixed conveying plate is provided with a plurality of positioning locking blocks, the fixing mechanism comprises a hydraulic cylinder, a lower pressing top plate, an inner groove, a rotating telescopic arm and a positioning plug, the bottom edge of the lower pressing top plate is provided with a buffer rubber pad, the inner side of the bottom of the lower pressing top plate is provided with an inner groove, a plurality of rotating telescopic arm is arranged in the inner groove, the bottom end of the rotating telescopic arm is provided with a positioning plug, the top of the positioning plug is provided with an induction electric eye, the vibration heating mechanism comprises a vibration plate, a lifter, an air inlet plug, an air inlet pipe and a heater, the vibration plate is arranged at the bottom of the fixed conveying plate, the lifter is provided with the positioning plug, the vertical lifting plate is provided with the positioning plug, the air inlet pipe is connected with the air inlet pipe, the air inlet pipe is connected with the air inlet sealing mechanism, the air inlet sealing mechanism is arranged on the side of the air inlet pipe, the air inlet sealing mechanism is connected with the air inlet sealing plug, the air inlet sealing mechanism is arranged on the side of the air inlet sealing plug, and the air inlet sealing mechanism is connected with the air inlet sealing mechanism, and the air inlet sealing mechanism is arranged on the side, and the air sealing mechanism and the air sealing device The fixing mechanism is connected with the vibration heating mechanism one by one.
Preferably, the number of the travel guide rails is three, the travel guide rails are uniformly distributed on the top of the test bench side by side, the number of the electric sliding blocks is at least six, and at least two electric sliding blocks are installed on each travel guide rail.
Preferably, the positioning locking block is detachably arranged at the top of the fixed conveying plate, a plurality of threaded locking grooves corresponding to the positioning locking block are formed in the fixed conveying plate, and the top of the positioning locking block is vertically upwards provided with a positioning electric eye.
Preferably, the positioning plug is a conical heat-resistant rubber block, the air inlet plug is a conical heat-resistant rubber block, an air vent is formed in the air inlet plug, and a temperature sensor is arranged at the top of the air inlet plug.
Preferably, the number of lifters is plural, and the number and positions of lifters correspond to the test holes.
Preferably, a digital display operation screen is arranged on the control center, and the fixed conveying plate is detachably arranged.
The invention has the beneficial effects that: according to the invention, the test bench, the positioning and conveying mechanism, the fixing mechanism and the vibration heating mechanism are combined together, and through experimental optimization, the positioning and conveying mechanism can accurately convey the engine cylinder cover to the test station, the fixing mechanism can be used for independently plugging and fixing the test hole under the condition of integral fixing, the vibration heating mechanism can simulate the temperature, the pressure and the vibration of the engine cylinder cover during working, the detection device can simulate the working state of the engine cylinder cover, the air tightness of the engine cylinder cover is detected in real time, the detection data is more accurate and practical, the sealing effect of the engine cylinder cover under the conditions of different temperatures, pressures and vibration can be conveniently tested, further record improvement is made, and the production efficiency is improved.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of a cylinder head tightness test device for a diesel engine according to the present invention.
In the figure: the device comprises a 1-test bench, a 2-positioning transmission mechanism, a 3-fixing mechanism, a 4-oscillation heating mechanism, a 5-stroke guide rail, a 6-electric sliding block, a 7-fixed conveying plate, an 8-positioning locking block, a 9-thread locking groove, a 10-positioning electric eye, an 11-hydraulic cylinder, a 12-pressing top plate, a 13-built-in groove, a 14-rotating telescopic arm, a 15-positioning plug, a 16-buffering rubber pad, a 17-induction electric eye, a 18-oscillation plate, a 19-lifter, a 20-air inlet plug, a 21-air inlet pipe, a 22-heater, a 23-airtight detection ring, a 24-booster pump, a 25-control center, a 26-vent hole and a 27-temperature sensor.
Detailed Description
Referring to fig. 1, the invention relates to a diesel engine cylinder head tightness testing device, which comprises a testing table 1, a positioning transmission mechanism 2, a fixing mechanism 3 and a vibration heating mechanism 4, wherein the top of the testing table 1 is provided with the positioning transmission mechanism 2, the positioning transmission mechanism 2 comprises a travel guide rail 5, an electric sliding block 6, a fixed conveying plate 7 and a positioning locking block 8, the top of the testing table 1 is provided with a plurality of travel guide rails 5, the bottom of the fixed conveying plate 7 is connected with the travel guide rail 5 through a plurality of electric sliding blocks 6, the top of the fixed conveying plate 7 is provided with a plurality of positioning locking blocks 8, the fixing mechanism 3 comprises a hydraulic cylinder 11, a lower pressing top plate 12, a built-in groove 13, a rotary telescopic arm 14 and a positioning plug 15, the bottom of the hydraulic cylinder 11 is provided with a lower pressing top plate 12, the bottom edge of the lower pressing top plate 12 is provided with a buffer rubber gasket 16, the inner side of the lower pressing top plate 12 is provided with a built-in groove 13, a plurality of rotary telescopic arms 14 are arranged in the inner side of the built-in groove 13, the bottom of the rotary telescopic arm 14 is provided with a positioning plug 15, the top of the positioning plug 15 is provided with an induction eye 17, the upper end of the positioning plug 15 is provided with an induction hole 17, the vibration heating mechanism is provided with an air inlet pipe 21, the vibrator 19 and an air inlet pipe 20 is provided with an air inlet pipe 20, an air inlet 20 is provided with an air inlet 20, a heater 20 and an air inlet 20, a side 20 is provided with an air inlet 20, a heater 20 is arranged on the side surface 20, and a side surface 20 is connected with the air inlet 20, and a heater 20 is provided with a plug, and a plug is arranged correspondingly, and is connected with an air plug 20, the test bench 1 side is provided with control center 25, control center 25 links to each other with location transport mechanism 2, airtight detection ring 23, booster pump 24, fixed establishment 3 and concussion intensification mechanism 4 one by one, the quantity of travel guide rail 5 has three, travel guide rail 5 evenly distributes at test bench 1 top side by side, the quantity of electronic slider 6 has six at least, installs two electronic sliders 6 on every travel guide rail 5 at least, location latch segment 8 can dismantle the top that sets up at fixed delivery plate 7, be provided with a plurality of screw thread locking groove 9 that correspond with location latch segment 8 on the fixed delivery plate 7, the vertical upward location electric eye 10 that is provided with in top of location latch segment 8, location end cap 15 is conical heat-resisting rubber piece, the end cap 20 that admits air is conical heat-resisting rubber piece, the inside air vent 26 that is provided with of end cap 20 admits air, the end cap 20 top is provided with temperature-sensing ware 27, the quantity of riser 19 has a plurality of, the quantity and the position of riser 19 correspond with the hole, be provided with on the control center 25 and control center operation and dismantle the fixed delivery plate 7.
According to the invention, the test bench 1, the positioning and conveying mechanism 2, the fixing mechanism 3 and the vibration heating mechanism 4 are combined together, and through experimental optimization, the positioning and conveying mechanism 2 can accurately convey the engine cylinder head to a test station, the fixing mechanism 3 can independently plug and fix a test hole under the condition of integral fixing, the vibration heating mechanism 4 can simulate the temperature, the pressure and the vibration of the engine cylinder head during working, the detection device can simulate the working state of the engine cylinder head, the air tightness of the engine cylinder head is detected in real time, the detection data is more accurate and practical, the sealing effect of the engine cylinder head under different temperatures, pressures and vibration conditions can be conveniently tested, further record improvement is made, and the improvement on the production efficiency is facilitated.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (6)
1. A diesel engine cylinder head tightness testing device is characterized in that: including testboard (1), location transport mechanism (2), fixed establishment (3) and concussion intensification mechanism (4), testboard (1) top is provided with location transport mechanism (2), location transport mechanism (2) are including stroke guide rail (5), electronic slider (6), fixed delivery board (7) and location latch segment (8), testboard (1) top is provided with a plurality of stroke guide rail (5), fixed delivery board (7) bottom links to each other with stroke guide rail (5) through a plurality of electronic slider (6), fixed delivery board (7) top is provided with a plurality of location latch segment (8), fixed establishment (3) are including hydraulic cylinder (11), lower pressure roof (12), built-in groove (13), rotatory telescopic boom (14) and location end cap (15), the bottom of hydraulic cylinder (11) is provided with down pressure roof (12), the bottom edge of lower pressure roof (12) is provided with buffering rubber pad (16), the bottom inboard of lower roof (12) is provided with built-in groove (13), be provided with swivel boom (14) in the built-in groove (13), swivel boom (14) is provided with a plurality of location end caps (15), the location end cap (15) is installed to swivel joint (15), the utility model provides a vibration heating mechanism (4) is including vibrating board (18), riser (19), air inlet plug (20), intake pipe (21) and heater (22), vibrate board (18) and set up in fixed conveying board (7) bottom, riser (19) are vertical to be set up at fixed conveying board (7) top, air inlet plug (20) set up at riser (19) top, air inlet plug (20) link to each other through heater (22) and intake pipe (21), the side of air inlet plug (20) is provided with sealed shirt rim, air inlet plug (20) and location plug (15) up-down correspondence set up, the side of location plug (15) is provided with airtight detection ring (23), be connected with booster pump (24) on intake pipe (21), testboard (1) side is provided with control center (25), control center (25) link to each other with location transmission mechanism (2), airtight detection ring (23), booster pump (24), fixed establishment (3) and vibration heating mechanism (4).
2. A diesel engine cylinder head tightness test device as defined in claim 1, wherein: the number of the travel guide rails (5) is three, the travel guide rails (5) are uniformly distributed on the top of the test bench (1) side by side, the number of the electric sliding blocks (6) is at least six, and at least two electric sliding blocks (6) are installed on each travel guide rail (5).
3. A diesel engine cylinder head tightness test device as defined in claim 1, wherein: the positioning locking block (8) is detachably arranged at the top of the fixed conveying plate (7), a plurality of threaded locking grooves (9) corresponding to the positioning locking block (8) are formed in the fixed conveying plate (7), and positioning electric eyes (10) are vertically upwards arranged at the top of the positioning locking block (8).
4. A diesel engine cylinder head tightness test device as defined in claim 1, wherein: the positioning plug (15) is a conical heat-resistant rubber block, the air inlet plug (20) is a conical heat-resistant rubber block, an air vent (26) is formed in the air inlet plug (20), and a temperature sensor (27) is arranged at the top of the air inlet plug (20).
5. A diesel engine cylinder head tightness test device as defined in claim 1, wherein: the number of the lifters (19) is plural, and the number and the positions of the lifters (19) correspond to the test holes.
6. A diesel engine cylinder head tightness test device as defined in claim 1, wherein: the control center (25) is provided with a digital display operation screen, and the fixed conveying plate (7) is detachably arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035108.9A CN109060253B (en) | 2018-09-06 | 2018-09-06 | Diesel engine cylinder head tightness testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811035108.9A CN109060253B (en) | 2018-09-06 | 2018-09-06 | Diesel engine cylinder head tightness testing device |
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| CN109060253A CN109060253A (en) | 2018-12-21 |
| CN109060253B true CN109060253B (en) | 2023-09-19 |
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| CN201811035108.9A Active CN109060253B (en) | 2018-09-06 | 2018-09-06 | Diesel engine cylinder head tightness testing device |
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| CN109799032A (en) * | 2018-12-30 | 2019-05-24 | 珠海市广源信科技有限公司 | A kind of vacuum generator detection device |
| CN112444397B (en) * | 2020-11-09 | 2022-10-04 | 上海中船三井造船柴油机有限公司 | Airtightness testing equipment and method for LGIP (light emitting diode) host gas module |
| CN112221799B (en) * | 2020-12-12 | 2021-04-27 | 潍坊思博精工科技有限公司 | Cylinder head automated inspection spraying production line |
| CN112985696A (en) * | 2021-02-23 | 2021-06-18 | 贵州省湄潭县德隆气门制造有限公司 | Engine valve seepage detection device |
| CN113155372B (en) * | 2021-04-19 | 2022-12-20 | 湖北三江航天江河化工科技有限公司 | Rocket engine air tightness detection system and detection method |
| CN114737614A (en) * | 2022-05-23 | 2022-07-12 | 深圳市利赛实业发展有限公司 | Leak protection device of landfill marsh gas collecting well |
| CN115308599B (en) * | 2022-10-09 | 2023-03-28 | 深圳市兴丰元机电有限公司 | Waterproof testing arrangement for motor |
| CN117191279B (en) * | 2023-09-19 | 2024-04-19 | 雄邦压铸（南通）有限公司 | Automobile shock absorber ware casing leakproofness detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104614134B (en) * | 2015-02-03 | 2018-12-21 | 中信戴卡股份有限公司 | A method of detection aluminium alloy wheel hub air-tightness |
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