CN114046354B - Transmission shaft sealing device of heat insulation cabin - Google Patents
Transmission shaft sealing device of heat insulation cabin Download PDFInfo
- Publication number
- CN114046354B CN114046354B CN202111445068.7A CN202111445068A CN114046354B CN 114046354 B CN114046354 B CN 114046354B CN 202111445068 A CN202111445068 A CN 202111445068A CN 114046354 B CN114046354 B CN 114046354B
- Authority
- CN
- China
- Prior art keywords
- sealing
- transmission shaft
- heat insulation
- sealing ring
- pressing plate
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 123
- 238000009413 insulation Methods 0.000 title claims abstract description 52
- 230000005540 biological transmission Effects 0.000 title claims abstract description 49
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 34
- 238000003825 pressing Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 24
- 239000004945 silicone rubber Substances 0.000 claims abstract description 18
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000012360 testing method Methods 0.000 abstract description 43
- 230000001133 acceleration Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 244000126211 Hericium coralloides Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/18—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings
- F16J15/181—Sealings between relatively-moving surfaces with stuffing-boxes for elastic or plastic packings for plastic packings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a sealing device of a transmission shaft of a heat insulation cabin, wherein the sealing device 1 is symmetrically arranged along the transmission shaft 4; the sealing device 1 includes: sealing the conical section 12, the silicone rubber gasket and the pressing plate; the silicone rubber gaskets include a first silicone rubber gasket 11 and a second silicone rubber gasket 13; the pressing plate comprises an outer pressing plate 14 and an inner pressing plate 15; the sealing conical section 12 is connected with the installation surface of the heat insulation cabin 3; the second silicon rubber sealing gasket 13 is fixed with the sealing conical section 12 and the installation surface of the heat insulation cabin 3 through an outer pressing plate 14 and an inner pressing plate 15 respectively. The sealing device for the transmission shaft of the heat insulation cabin can seal different pressure environments at two ends of the transmission shaft, and meanwhile, the transmission shaft can flexibly rotate at a high speed in the sealing device, so that tests such as a start rule, high-low temperature start and acceleration of a turboshaft engine are met.
Description
Technical Field
The invention belongs to the technical field of sealing devices, and particularly relates to a sealing device for a transmission shaft of a heat insulation cabin.
Background
When the turboshaft engine is subjected to tests such as starting law, high-low temperature starting, acceleration and the like, the engine is placed in an environmental test cabin, the power of an output shaft of the engine is absorbed and measured through a hydraulic dynamometer, a flywheel is used for simulating the polar moment of inertia of the rotating speed of the output shaft of the engine, and the hydraulic dynamometer and the flywheel are collectively called as a power absorption measurement system.
When the engine is started regularly, the inlet temperature, the inlet pressure and the exhaust pressure of the engine are required to be simulated in the environmental test cabin, for example, when the engine is started on a 5.5km plateau, the temperature in the environmental test cabin is-20.75 ℃, the pressure is 50.5kPa (A), the environment is negative pressure, the problems that the water inlet and return pipelines of the dynamometer are frozen, the measuring precision of the tension sensor is unreliable and the like exist in the low-temperature negative pressure environment, meanwhile, the hydraulic dynamometer and the flywheel are operated at a high speed, the bearing is cooled by using lubricating oil, and the shaft end lubricating oil is easy to leak into the test cabin in the negative pressure environment and the like are solved. A set of heat insulation cabin device is used for placing a dynamometer and a flywheel in a heat insulation cabin, and the heat insulation cabin is communicated with the atmosphere outside an environment test cabin and is in a normal-temperature and normal-pressure environment. During the test, the turboshaft engine is placed in the environment test cabin, the dynamometer and the flywheel are placed in the heat insulation cabin in the environment test cabin, and the power of the output shaft of the engine is transmitted to the dynamometer or the flywheel through the transmission shaft, so that the transmission shaft needs to penetrate through the heat insulation cabin to be connected with the dynamometer or the flywheel.
A certain test bed of the high-altitude simulation test base in China is characterized in that a hydraulic dynamometer and a turboshaft engine are placed in an environment test cabin, the hydraulic dynamometer is not covered by a separate heat insulation cabin, a negative pressure normal temperature environment is arranged outside the hydraulic dynamometer, and the hydraulic dynamometer and flywheel cooling lubricating oil are easy to leak from the shaft end to the side of the environment test cabin. Meanwhile, test items such as high-low temperature start, plateau start and the like all require that an engine is placed in a high-low temperature environment, and a dynamometer cannot normally and continuously work under the extreme atmospheric condition, so that the test bed cannot normally develop the test items in the high-low temperature environment.
Therefore, there is a need to design a sealing device for a transmission shaft of a heat insulation cabin, so that the sealing device can seal different pressure environments at two ends of the transmission shaft, and meanwhile, the transmission shaft can flexibly rotate at a high speed in the sealing device, so that the tests of starting rules, high-low temperature starting, acceleration and the like of a turboshaft engine are met.
Disclosure of Invention
In order to solve the problems, the invention provides a sealing device for a transmission shaft of a heat insulation cabin,
the sealing device 1 is symmetrically arranged along the transmission shaft 4;
the sealing device 1 includes: sealing the conical section 12, the silicone rubber gasket and the pressing plate;
the silicone rubber gaskets comprise a first silicone rubber gasket 11 and a second silicone rubber gasket 13;
the pressing plates comprise an outer pressing plate 14 and an inner pressing plate 15;
the sealing conical section 12 is connected with the installation surface of the heat insulation cabin 3;
the second silicon rubber sealing gasket 13 is fixed with the sealing conical section 12 and the installation surface of the heat insulation cabin 3 through an outer pressing plate 14 and an inner pressing plate 15 respectively.
Further, the first silicon rubber sealing gasket 11 is fixed with the end face of the dynamometer or the flywheel 2 through a bolt 18;
one end of the sealing conical section 12 is sealed with the end face of the dynamometer or the flywheel 2 through a first silicon rubber sealing gasket 11, and the other end of the sealing conical section and the installation face of the heat insulation cabin 3 are the same vertical face.
Further, the sealing conical section 12 is connected with the installation surface of the heat insulation cabin 3 in a flexible connection mode by adopting a second silicon rubber sealing gasket 13.
Further, the method comprises the steps of,
the sealing device 1 further comprises: a sealing ring 16 and a vent fitting 17;
the sealing ring 16 is arranged at the transmission shaft 4;
the seal ring 16 and the inner pressure plate 15 are fixed by bolts 18.
Further, a threaded interface is radially arranged at the sealing ring 16, and the ventilation joint 17 is connected with the sealing ring 16 through threads;
the vent fitting 17 comprises a 360 ° rotary pneumatic quick fitting.
Further, the method comprises the steps of,
when the sealing ring 16 and the inner pressure plate 15 are fixed by bolts 18, a spring washer 19 and a flat washer 110 are arranged and fixed by bolts 18; the spring washer 19 is disposed in close contact with the bolt 18, and the flat washer 110 is disposed above the spring washer 19.
Further, the method comprises the steps of,
the sealing ring 16 and the inner pressure plate 15 are designed with a certain clearance, and the clearance between the sealing ring 16 and the transmission shaft 4 can be adjusted by adjusting the relative position between the sealing ring 16 and the inner pressure plate 15.
Further, the inner diameter of the sealing ring 16 is in clearance fit with the transmission shaft 4, and an annular groove 162 is formed in the inner diameter of the sealing ring 16 along the axial direction of the transmission shaft 4.
Further, the number of the annular grooves 162 is 3-4, and the pressure difference between two ends of the transmission shaft 4 is gradually reduced after passing through the annular grooves 162.
Further, the inside diameter of the sealing ring 16 is provided with vent holes 161 at the annular groove 162, and compressed air can enter the annular groove 162 through the vent holes 161.
The invention has the following beneficial effects:
(1) The sealing device of the transmission shaft is provided, different environments at two ends of the transmission shaft are isolated, the work of the dynamometer and the flywheel under the normal temperature and normal pressure environment is ensured, and the turboshaft engine can perform tests such as start law test, high-low temperature start, acceleration and the like in an environment test cabin;
(2) The flexible connection mode of the silicon rubber is adopted between the conical sealing section and the heat insulation cabin, so that manufacturing and installation errors between the conical sealing section and the heat insulation cabin and thermal expansion can be effectively compensated;
(3) An adjusting gap is designed between the sealing ring and the inner pressure plate, and the gap between the sealing ring and the transmission shaft is adjusted uniformly by adjusting the relative position between the sealing ring and the inner pressure plate;
(4) The sealing device is provided with a comb tooth sealing ring which is used for being matched with a transmission shaft, the inner diameter of the sealing device is provided with 3-4 annular grooves along the axial direction, dry compressed air of the vehicle table can be sealed through ventilation small holes, when the turboshaft engine starts a regular test, the pressure in the environmental test cabin is different at different heights, and the pressure of sealing air is regulated according to the corresponding pressure at different heights, so that the optimal sealing effect is achieved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic diagram of the arrangement of test equipment in an environmental test chamber during a turboshaft engine start law test according to an embodiment of the present invention;
FIG. 2 shows a schematic view of an insulation pod drive shaft seal arrangement according to an embodiment of the invention;
fig. 3 shows a schematic view of the seal ring structure according to an embodiment of the present invention.
Reference numerals: 1-a sealing device; 2-dynamometer or flywheel; 3-a heat insulation cabin; 4-a transmission shaft; 11-a first silicone rubber gasket; 12-sealing the conical section; 13-a second silicone rubber gasket; 14-an outer pressing plate; 15-an inner pressing plate; 16-sealing ring; 17-a vent fitting; 18-a bolt; 19-a spring washer; 110-plain washer; 161-vent holes; 162-annular groove.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a transmission shaft sealing device of a heat insulation cabin, which is suitable for tests such as high-low temperature starting and plateau starting of a turboshaft engine, so as to solve the problem that a dynamometer and a flywheel cannot work normally in the environment test of the conventional turboshaft engine.
Referring to fig. 1, fig. 1 shows a schematic diagram of an arrangement of test equipment in an environmental test chamber during a startup law test of a turboshaft engine according to an embodiment of the present invention. When the turboshaft engine is subjected to tests such as high-low temperature starting, plateau starting and the like, the engine is placed in an environment test cabin, and a dynamometer and a flywheel 2 are covered by a heat insulation cabin 3 in order to isolate low temperature and negative pressure environments in the environment test cabin, wherein the heat insulation cabin 3 is in a normal temperature and normal pressure environment. The output shaft power of the turboshaft engine is transmitted to the flywheel or the dynamometer 2 through the transmission shaft 4, one end of the transmission shaft 4 is connected with the turboshaft engine, the other end of the transmission shaft needs to pass through the heat insulation cabin 3 and the dynamometer or the flywheel 2, and the heat insulation cabin 3 is generally designed with a mounting surface near the engine, so that a set of sealing device 1 needs to pass through the transmission shaft 4, the sealing device 1 needs to be sealed with the input end of the dynamometer or the flywheel 2 and the mounting surface of the heat insulation cabin 3, and meanwhile, flexible high-speed rotation of the transmission shaft 4 in the sealing device 1 needs to be ensured.
Specifically, the sealing device 1 is shown in fig. 2, and fig. 2 shows a schematic view of a transmission shaft sealing device of an insulation cabin according to an embodiment of the invention. The sealing device 1 is symmetrically arranged along the transmission shaft 4, and the sealing device 1 comprises: the sealing cone section 12, the silicone rubber gasket, the pressing plate, the sealing ring 16, the vent joint 17, the bolt 18, the spring washer 19 and the flat washer 110. Wherein the silicone rubber gaskets comprise a first silicone rubber gasket 11 and a second silicone rubber gasket 13; the press plates include an outer press plate 14, an inner press plate 15.
The sealing conical section 12 is connected with the installation surface of the heat insulation cabin 3, specifically, one end of the sealing conical section 12 is sealed with the end surface of the dynamometer or the flywheel 2 through the first silicon rubber sealing gasket 11, the length of the sealing conical section 12 is designed according to the installation surface of the heat insulation cabin 3, and the sealing conical section 12 and the installation surface of the heat insulation cabin 3 are arranged on the same vertical plane after being installed. The first silicone rubber gasket 11 is fixed to the end face of the dynamometer or flywheel 2 by bolts 18. The second silicon rubber sealing gasket 13 is fixed with the sealing conical section 12 and the installation surface of the heat insulation cabin 3 through an outer pressing plate 14 and an inner pressing plate 15 respectively.
For convenient installation, the outer diameter of the end face of the other side of the sealed conical section 12 is generally about 10mm smaller than the inner diameter of the installation face of the heat insulation cabin 3, namely, a gap of 5mm is formed on one side, so that errors caused by installation of the heat insulation cabin 3 and the flywheel can be compensated. Meanwhile, as the heat insulation cabin 3 is large and is designed to be split in half along the central line, the flatness and verticality of the installation surface cannot be completely guaranteed during installation, the environment outside the heat insulation cabin 3 is a high-low temperature environment, and the expansion amount of the heat insulation cabin 3 along the axial direction is always changed, so that a flexible connection mode is designed between the installation surface of the heat insulation cabin 3 and the end surface of the sealing conical section 12. The installation surface of the heat insulation cabin 3 and the end surface of the sealing conical section 12 are sealed through the first silicon rubber sealing gasket 11, the first silicon rubber sealing gasket 11 and the installation surface of the heat insulation cabin 3 are tightly pressed by the outer pressing plate 14, the second silicon rubber sealing gasket 13 is tightly pressed by the inner pressing plate 15, and the flexible connection is used for effectively compensating the axial error and the installation error between the heat insulation cabin 3 and the sealing conical section 12 and compensating the thermal expansion.
The sealing ring 16 is designed at the position of the inner pressing plate 15 at the same time, 4 threaded interfaces are radially designed at the sealing ring 16, the ventilation joint 17 is connected with the sealing ring 16 through threads, the ventilation joint 17 can be a pneumatic quick joint rotating by 360 degrees, and compressed air after drying of a test bed is connected to the ventilation joint 17 after passing through a pressure reducing valve. When the turboshaft engine is used for environmental test, the pressure in the environmental test cabins at different heights is different, and the pressure of compressed air can be dynamically regulated through the pressure reducing valve, so that the optimal sealing effect is achieved.
The sealing ring 16 is connected with the inner pressure plate 15 through bolts 18, and when the sealing ring 16 is fixed with the inner pressure plate 15 through the bolts 18, a spring washer 19 and a flat washer 110 are arranged and fixed through the bolts 18; the spring washer 19 is closely attached to the bolt 18, and the flat washer 110 is arranged above the spring washer 19, so that a tight fixing effect is achieved.
The transmission shaft 4 and the sealing ring 16 are installed in a clearance fit manner. In order to adjust the gap between the sealing ring 16 and the transmission shaft 4 uniformly, a 2mm adjusting gap is designed between the sealing ring 16 and the inner pressure plate 15, and the gap between the sealing ring 16 and the transmission shaft 4 is adjusted by adjusting the relative position between the sealing ring 16 and the inner pressure plate 15. The clearance between the seal ring 16 and the drive shaft 4 is typically adjusted to 0.02-0.03 mm empirically.
In order to ensure that the transmission shaft 4 flexibly rotates at a high speed in the sealing ring 16, the transmission shaft 4 and the sealing ring 16 are designed to be in clearance fit, the end of the transmission shaft 4 is still in a negative pressure environment, and lubricating oil at the end of the transmission shaft 4 still has the possibility of leaking to an environment test cabin. Thus, 3-4 annular grooves 162 are designed at the inner diameter of the sealing ring 16, as shown in FIG. 3, and FIG. 3 shows a schematic view of the sealing ring structure according to an embodiment of the present invention. The pressure difference across the drive shaft 4 decreases stepwise through the annular groove 162. Simultaneously, in order to obtain better sealing effect, the annular grooves are all designed with vent holes 161, and external compressed air can seal the gaps through the vent holes 161. When the turboshaft engine is started in a regular test, the pressure in the environmental test cabin is different at different heights, and the pressure of sealing air is regulated according to the corresponding pressure at different heights, so that the optimal sealing effect is achieved.
The sealing device for the transmission shaft of the heat insulation cabin isolates different environments at two ends of the transmission shaft, ensures that the dynamometer and the flywheel work under normal temperature and normal pressure, and enables the turboshaft engine to perform tests such as start law test, high-low temperature start, acceleration and the like in an environmental test cabin.
Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A transmission shaft sealing device of a heat insulation cabin is characterized in that,
the sealing device (1) is symmetrically arranged along the transmission shaft (4);
the sealing device (1) comprises: the conical section (12), the silicon rubber sealing gasket and the pressing plate are tightly sealed;
the silicone rubber gaskets comprise a first silicone rubber gasket (11) and a second silicone rubber gasket (13);
the pressing plate comprises an outer pressing plate (14) and an inner pressing plate (15);
the sealing conical section (12) is connected with the installation surface of the heat insulation cabin (3);
the second silicon rubber sealing gasket (13) is fixed with the sealing conical section (12) and the installation surface of the heat insulation cabin (3) through an outer pressing plate (14) and an inner pressing plate (15) respectively;
the first silicon rubber sealing gasket (11) is fixed with the end face of the dynamometer or the flywheel (2) through a bolt (18);
one end of the sealing conical section (12) is sealed with the end face of the dynamometer or the flywheel (2) through a first silicon rubber sealing gasket (11), and the other end of the sealing conical section and the installation face of the heat insulation cabin (3) are the same vertical plane;
the sealing device (1) further comprises: a sealing ring (16) and a ventilation joint (17);
the sealing ring (16) is arranged at the transmission shaft (4);
the sealing ring (16) and the inner pressure plate (15) are fixed through bolts (18);
a threaded interface is radially arranged at the sealing ring (16), and the ventilation joint (17) is connected with the sealing ring (16) through threads;
the ventilation joint (17) comprises a pneumatic quick joint rotating by 360 degrees;
a certain gap is designed between the sealing ring (16) and the inner pressure plate (15), and the gap between the sealing ring (16) and the transmission shaft (4) can be adjusted by adjusting the relative position between the sealing ring (16) and the inner pressure plate (15);
the inner diameter of the sealing ring (16) is in clearance fit with the transmission shaft (4), and an annular groove (162) is formed in the inner diameter of the sealing ring (16) along the axial direction of the transmission shaft (4);
the inner diameter of the sealing ring (16) is provided with a vent hole (161) at the annular groove (162), and compressed air can enter the annular groove (162) through the vent hole (161).
2. The insulation pod drive shaft seal of claim 1,
the sealing conical section (12) is connected with the installation surface of the heat insulation cabin (3) in a flexible connection mode by adopting a second silicon rubber sealing gasket (13).
3. The insulation pod drive shaft seal of claim 1,
when the sealing ring (16) and the inner pressure plate (15) are fixed through bolts (18), a spring washer (19) and a flat washer (110) are arranged and fixed through the bolts (18); the spring washer (19) is closely attached to the bolt (18), and the flat washer (110) is arranged above the spring washer (19).
4. The insulation pod drive shaft seal of claim 1,
the number of the annular grooves (162) is 3-4, and the pressure difference at two ends of the transmission shaft (4) is gradually reduced after passing through the annular grooves (162).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445068.7A CN114046354B (en) | 2021-11-30 | 2021-11-30 | Transmission shaft sealing device of heat insulation cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445068.7A CN114046354B (en) | 2021-11-30 | 2021-11-30 | Transmission shaft sealing device of heat insulation cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114046354A CN114046354A (en) | 2022-02-15 |
| CN114046354B true CN114046354B (en) | 2023-11-24 |
Family
ID=80211867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111445068.7A Active CN114046354B (en) | 2021-11-30 | 2021-11-30 | Transmission shaft sealing device of heat insulation cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114046354B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB580211A (en) * | 1944-06-17 | 1946-08-30 | William Murray | Improvements in and relating to oil seals for shafts and other rotary or reciprocable parts |
| JP2008096111A (en) * | 2006-10-05 | 2008-04-24 | Toyo Eng Works Ltd | Environmental test device of engine for mobile vehicle |
| KR20120069328A (en) * | 2010-12-20 | 2012-06-28 | 한국항공우주연구원 | Vibration support beam to guarantee the safety of the nozzle for high altitude firing test |
| CN103423424A (en) * | 2013-08-20 | 2013-12-04 | 中国航空动力机械研究所 | Shaft end protecting device for central driving shaft |
| CN109520741A (en) * | 2018-10-29 | 2019-03-26 | 中国航发沈阳发动机研究所 | A kind of aeroengine combustor buring room casing pressure experimental device |
| CN111707474A (en) * | 2020-07-02 | 2020-09-25 | 河北华北柴油机有限责任公司 | Outboard engine assembly performance test bench |
| CN113124163A (en) * | 2021-04-29 | 2021-07-16 | 西安航天动力研究所 | Symmetrical low-temperature-resistant combined sealing device |
| CN113310701A (en) * | 2021-06-15 | 2021-08-27 | 北京航空工程技术研究中心 | Complete machine tester for mechanical system of military turbofan engine |
| CN113654701A (en) * | 2021-08-24 | 2021-11-16 | 中国航发湖南动力机械研究所 | Dynamic stress measuring device for rotor blade of aircraft engine and application of dynamic stress measuring device |
-
2021
- 2021-11-30 CN CN202111445068.7A patent/CN114046354B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB580211A (en) * | 1944-06-17 | 1946-08-30 | William Murray | Improvements in and relating to oil seals for shafts and other rotary or reciprocable parts |
| JP2008096111A (en) * | 2006-10-05 | 2008-04-24 | Toyo Eng Works Ltd | Environmental test device of engine for mobile vehicle |
| KR20120069328A (en) * | 2010-12-20 | 2012-06-28 | 한국항공우주연구원 | Vibration support beam to guarantee the safety of the nozzle for high altitude firing test |
| CN103423424A (en) * | 2013-08-20 | 2013-12-04 | 中国航空动力机械研究所 | Shaft end protecting device for central driving shaft |
| CN109520741A (en) * | 2018-10-29 | 2019-03-26 | 中国航发沈阳发动机研究所 | A kind of aeroengine combustor buring room casing pressure experimental device |
| CN111707474A (en) * | 2020-07-02 | 2020-09-25 | 河北华北柴油机有限责任公司 | Outboard engine assembly performance test bench |
| CN113124163A (en) * | 2021-04-29 | 2021-07-16 | 西安航天动力研究所 | Symmetrical low-temperature-resistant combined sealing device |
| CN113310701A (en) * | 2021-06-15 | 2021-08-27 | 北京航空工程技术研究中心 | Complete machine tester for mechanical system of military turbofan engine |
| CN113654701A (en) * | 2021-08-24 | 2021-11-16 | 中国航发湖南动力机械研究所 | Dynamic stress measuring device for rotor blade of aircraft engine and application of dynamic stress measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114046354A (en) | 2022-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109975022B (en) | Test device and test method for fatigue life of ultralow-temperature high-DN-value bearing | |
| CN109612655B (en) | Inter-shaft seal dynamic test device | |
| CN111947933A (en) | Comprehensive test device and test method for leakage, heat transfer, friction and wear characteristics of aircraft engine dynamic seal | |
| CN102840982A (en) | Service life verification tester for ceramic bearing | |
| CN114046354B (en) | Transmission shaft sealing device of heat insulation cabin | |
| CN105423018A (en) | Leakage detecting device of high-temperature flange connecting system | |
| JP2017116292A (en) | Method and apparatus for testing bearing part | |
| US10788398B2 (en) | Gas turbine engine test stand | |
| CN207351623U (en) | Auxiliary seal cushion rubber air tight test frock in a kind of aviation graphite grazing | |
| CN113503995A (en) | High-power gas turbine performance testing device | |
| CN110879139B (en) | Sealing ring test device with deformation error compensation | |
| CN112502859B (en) | High-speed dynamic sealing element test device for rocket engine | |
| CN108181096A (en) | A kind of accelerated aging test method and apparatus of O-ring seal | |
| CN206146629U (en) | High -speed oil blanket test device of high temperature | |
| CN211121988U (en) | Novel high-speed flywheel test device | |
| CN110361136B (en) | Inter-shaft sealing tester | |
| CN214196502U (en) | High-speed dynamic sealing element test device | |
| CN210513666U (en) | Liquid film sealing dynamic rigidity coefficient and damping coefficient measuring device | |
| CN114216678A (en) | High-speed bearing tester of aviation power | |
| CN207923375U (en) | Portable mechanism dynamic sealing air tightness tester | |
| CN207195656U (en) | Rubber antelabium friction pair type stern shaft seal gland | |
| KR20090067270A (en) | Pipe connecting unit for engine test apparatus and engine test apparatus having the same | |
| CN213842551U (en) | Air tightness test device for bearing | |
| CN219657665U (en) | Experimental device for testing critical rotation speed of rotary oil seal | |
| CN220134608U (en) | Rotary shaft sealing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |