CN211121837U - Quick detection device of cylinder pressure - Google Patents
Quick detection device of cylinder pressure Download PDFInfo
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- CN211121837U CN211121837U CN201922303116.3U CN201922303116U CN211121837U CN 211121837 U CN211121837 U CN 211121837U CN 201922303116 U CN201922303116 U CN 201922303116U CN 211121837 U CN211121837 U CN 211121837U
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- cylinder
- pressure guide
- mounting hole
- thread connecting
- cylinder pressure
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Abstract
The utility model provides a cylinder pressure short-term test device, includes manometer and hollow atmospheric pressure guide arm, atmospheric pressure guide arm both ends are provided with female connection portion and external screw thread connecting portion respectively, female connection portion are used for being connected with the manometer, the atmospheric pressure guide arm inserts in the existing mounting hole on the cylinder cover of engine, the mounting hole communicates to the inner chamber of cylinder and is provided with the internal thread, external screw thread connecting portion are used for with interior screw-thread fit, use the utility model discloses, whether the staff need not dismantle every cylinder head and detect valve and valve seat circle and damage, only need judge whether valve and valve seat circle damage according to the pressure that the manometer shows, and the simultaneous processing preparation is easy, has reduced artifical intensity of labour, has increased gas generating set's operating duration, improves the generated energy.
Description
Technical Field
The application relates to the technical field of engine maintenance equipment, in particular to a cylinder pressure rapid detection device.
Background
The engine is a key device of the gas generator set, and the normal operation of the engine is realized by the continuous and stable work of each cylinder in turn. The cylinder (i.e. combustion chamber) is composed of cylinder cover (spark plug, valve and valve seat ring, etc.), cylinder jacket and piston, because the temperature of gas mixture in the cylinder after detonation is up to 700 ℃ when the engine runs, and along with high pressure and vibration, the running environment is very bad, which easily causes metal fatigue and accessory damage of each part of the cylinder, wherein the damage phenomena of the valve and the valve seat ring of the cylinder cover are the most frequent. During the operation of the equipment, once a valve or a valve seat ring of one or more cylinders is damaged, the pressure of the cylinder is leaked, the energy released when the gas mixture does work is reduced, the stable operation condition of the engine is damaged, the power of the gas generator set is greatly fluctuated, and the emergency of shutting down the gas generator set by inverse power distribution can also occur in severe cases. In reality, production is often influenced by the defects described above, and because the valves and the valve seat rings are all arranged in the cylinders, a maintainer cannot detect and judge whether the valves and the valve seat rings are damaged from the outside, and needs to sequentially detach 12 cylinder covers from the engine after the engine is cooled, and then detect the integrity and the air tightness of the valves and the valve seat rings of the cylinder covers, so that the cylinder cover with the damaged valves or the valve seat rings is finally found out and replaced. Because each unit has 12 cylinder covers, and each cylinder cover has 4 pairs of valves and valve seat rings, the on-site treatment of the problems takes at least 72 hours, which causes higher labor intensity of staff maintenance and large material consumption. Therefore, the quick detection device for the air cylinder pressure has important significance for shortening the judgment time of whether the air valve and the air valve seat ring of the air cylinder are damaged or not and improving the maintenance efficiency.
Disclosure of Invention
An object of the embodiment of the application is to provide a cylinder pressure rapid detection device, which realizes the technical effect of rapidly detecting whether the valve and the valve seat ring of the cylinder cover are damaged or not through a method for rapidly detecting the pressure in the cylinder.
The embodiment of the application provides a cylinder pressure short-term test device, including manometer and hollow atmospheric pressure guide arm, atmospheric pressure guide arm both ends are provided with female connection portion and external screw thread connecting portion respectively, female connection portion are used for being connected with the manometer, the atmospheric pressure guide arm inserts in the mounting hole that has on the cylinder head of engine, the mounting hole communicates to the inner chamber of cylinder and is provided with the internal thread, external screw thread connecting portion are used for with interior screw-thread fit.
During the implementation process, when in use, a worker connects the internal thread connecting part at one end of the air pressure guide rod with the pressure gauge, the external thread connecting part at the other end of the air pressure guide rod is inserted into the existing mounting hole on the cylinder cover of the engine, and the external thread connecting part is meshed with the internal thread to achieve the purposes of sealing and fixing, when in detection, the maintainer firstly detaches the spark plug on the engine, can realize the reciprocating motion of the piston in the cylinder cover by manually turning the gear disc, and then checks the scales on the gear disc corresponding to the pointer of the gas distribution timing check meter of the engine, namely, can accurately master when the piston is in a compression link, during the period, one person uses the barring tool to quickly turn the gear disc, and the other person timely reads the highest instantaneous pressure value on the shock-resistant pressure gauge, and can visually judge whether the cylinder has leakage condition, thereby, after the detection is finished, only the air pressure guide rod needs to be disassembled, and the originally assembled parts of the mounting hole are assembled and returned.
Furthermore, the air pressure guide rod is fixedly provided with a locking nut near one end of the internal thread connecting portion, and a worker can rotate the air pressure guide rod by pulling the locking nut, so that the external thread connecting portion is better connected with the internal thread on the mounting hole of the cylinder cover, and the sealing effect is guaranteed.
Further, the mounting hole is a spark plug mounting hole.
Further, the pressure gauge is a shock-proof pressure gauge.
Furthermore, the air pressure guide rod is made of seamless steel tubes.
Furthermore, a sealing device is arranged at one end, close to the external thread connecting part, of the air pressure guide rod.
Furthermore, sealing device is including seting up the mounting groove at the atmospheric pressure guide arm outer wall and setting up the sealing washer in the mounting groove.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
FIG. 1 is a diagram of the usage state of the device for rapidly detecting the cylinder pressure of the present invention;
FIG. 2 is a schematic structural view of the cylinder pressure rapid detection device of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 2.
Icon: 1-shock-proof pressure gauge, 2-lock nut, 3-air pressure guide rod, 310-internal thread connecting part, 320-external thread connecting part, 330-sealing device, 331-mounting groove, 332-sealing ring, 4-spark plug mounting hole, 5-cylinder cover shell, 6-cylinder cover, 7-cylinder sleeve, 8-piston, 9-connecting rod and 10-cylinder.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
A device for rapidly detecting the pressure of an air cylinder 10 comprises a pressure gauge and a hollow air pressure guide rod 3, the two ends of the pneumatic guide rod 3 are respectively provided with an internal thread connecting part 310 and an external thread connecting part 320, the internal thread connection part 310 is used for connecting with a pressure gauge, the air pressure guide rod 3 is inserted into an existing mounting hole on a cylinder cover 6 of an engine, the mounting hole is communicated to an inner cavity of the cylinder 10 and is provided with an internal thread, the external thread connecting portion 320 is used for being matched with the internal thread, one end of the air pressure guide rod 3, which is close to the internal thread connecting part 310, is welded with a locking nut 2, the mounting hole is a spark plug mounting hole 4, the pressure gauge is a shock-proof pressure gauge 1, the air pressure guide rod 3 is made of seamless steel tubes, one end of the air pressure guide rod 3 close to the external thread connecting part 320 is provided with a sealing device 330, the sealing means 330 includes a mounting groove 331 formed on an outer wall of the air pressure guide bar 3 and a sealing ring 332 disposed in the mounting groove 331.
The specific working principle is as follows: when in use, a worker connects the internal thread connecting part 310 at one end of the air pressure guide rod 3 with the pressure gauge, the external thread connecting part 320 at the other end is inserted into the existing spark plug mounting hole 4 on the cylinder cover 6 of the engine, and the external thread connecting part 320 is meshed with the internal thread to achieve the purposes of sealing and fixing, when in detection, the maintainer firstly detaches the spark plug on the engine, can realize the reciprocating motion of the piston 8 in the cylinder sleeve 7 by manually turning the gear disc, then checks the scales on the gear disc corresponding to the pointer of the gauge and the air distribution timing inspection gauge of the engine, can accurately master when the piston 8 is in the compression link, uses a turning tool to quickly turn the gear disc by one person, reads the highest instantaneous pressure value on the shock-resistant pressure gauge 1 in time, can visually judge whether the cylinder has leakage condition, and accordingly presumes whether the valve and the valve, after the detection is finished, only the air pressure guide rod 3 needs to be disassembled, and the originally assembled parts of the mounting hole are assembled and returned.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The utility model provides a cylinder pressure short-term test device, includes manometer and hollow atmospheric pressure guide arm, its characterized in that, atmospheric pressure guide arm both ends are provided with female connection portion and external screw thread connecting portion respectively, female connection portion are used for being connected with the manometer, the atmospheric pressure guide arm inserts in the existing mounting hole on the cylinder head of engine, the mounting hole communicates to the inner chamber of cylinder and is provided with the internal thread, external screw thread connecting portion are used for with interior screw-thread fit.
2. The cylinder pressure rapid detection device according to claim 1, wherein a locking nut is fixedly arranged at one end of the air pressure guide rod close to the internal thread connecting part.
3. The cylinder pressure rapid detection apparatus according to claim 1, wherein the mounting hole is a spark plug mounting hole.
4. The device for rapidly detecting the cylinder pressure according to claim 1, wherein the pressure gauge is a shock-proof pressure gauge.
5. The device for rapidly detecting the cylinder pressure according to claim 1, wherein the air pressure guide rod is made of seamless steel pipe.
6. The cylinder pressure rapid detection device according to any one of claims 1 to 5, wherein a sealing device is arranged at one end of the air pressure guide rod close to the external thread connecting part.
7. The cylinder pressure rapid detection device according to claim 6, wherein the sealing device comprises a mounting groove formed on the outer wall of the air pressure guide rod and a sealing ring arranged in the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303116.3U CN211121837U (en) | 2019-12-18 | 2019-12-18 | Quick detection device of cylinder pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922303116.3U CN211121837U (en) | 2019-12-18 | 2019-12-18 | Quick detection device of cylinder pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211121837U true CN211121837U (en) | 2020-07-28 |
Family
ID=71689817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922303116.3U Active CN211121837U (en) | 2019-12-18 | 2019-12-18 | Quick detection device of cylinder pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211121837U (en) |
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2019
- 2019-12-18 CN CN201922303116.3U patent/CN211121837U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 638600 room 4-1, Yutang Road, Huaying City, Guang'an City, Sichuan Province Patentee after: Sichuan Huayingshan coalbed methane power generation Co.,Ltd. Address before: Room 4-1, Yutang Road, Huaying City, Guang'an City, Sichuan Province 638699 Patentee before: Sichuan Huayingshan Guangneng Group Gas Power Generation Co.,Ltd. |
|
| CP03 | Change of name, title or address |