CN114278458B - Convergence section adjusting mechanism of two-dimensional spray pipe - Google Patents
Convergence section adjusting mechanism of two-dimensional spray pipe Download PDFInfo
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- CN114278458B CN114278458B CN202111617345.8A CN202111617345A CN114278458B CN 114278458 B CN114278458 B CN 114278458B CN 202111617345 A CN202111617345 A CN 202111617345A CN 114278458 B CN114278458 B CN 114278458B
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Abstract
The utility model relates to an aeroengine binary nozzle field is a binary nozzle convergent section adjustment mechanism, including round change side section, the convergence section with locate round change side section and the convergence section between convergent section adjustment mechanism, the convergence section is including being located the extension board of upper and lower both sides and locating the curb plate of left and right sides, through seting up horizontal sliding groove and vertical sliding groove on the curb plate, the convergence adjustment board of convergence section adjustment mechanism includes with horizontal sliding groove slip complex preceding connecting rod, with vertical sliding groove slip complex back connecting rod, the plate body that links to each other with preceding connecting rod and back connecting rod, through setting up the barrel level of actuator cylinder and the actuator cylinder is in unify highly with continuous horizontal sliding groove, the piston rod of actuator cylinder can be in the horizontality all the time when promoting the deflection of convergence piece like this, and do not need to take place the deflection, the dynamic seal between piston rod and the barrel of actuator cylinder can not become invalid, just can not produce the oil leak yet, the safety of nozzle component also gets the guarantee.
Description
Technical Field
The application belongs to the field of two-dimensional spray pipes of aeroengines, and particularly relates to a two-dimensional spray pipe convergent section adjusting mechanism.
Background
The nozzle is an important component of an aeroengine. The main functions are as follows: the high-temperature and high-pressure gas after the turbine is expanded and accelerated and discharged out of the engine body, so that the thrust of the engine is generated.
The spray pipe can be divided into a fixed type and an adjustable type according to an adjusting mode, wherein the adjustable convergent-divergent spray pipe is used for controlling the distribution of the expansion ratio of the gas in the turbine and the spray pipe by adjusting the outlet area of the convergent section of the spray pipe, changing the common working point of the gas compressor and the turbine and realizing the control of the working state of the engine. The traditional adjustable two-dimensional spray pipe convergent section adjusting structure is mainly in the form of a hydraulic actuator cylinder driving rocker arm (or an adjusting ring) and a connecting rod, is complex in structure, more in parts, larger in occupied space and poorer in maintainability, the hydraulic actuator cylinder has a certain swing amplitude in motion, dynamic seal between a piston rod and a piston cylinder body is easy to lose efficacy, oil leakage is generated, the piston rod is easy to burn in a high-temperature environment, and hidden danger is caused to spray pipe components.
Therefore, a simple, efficient, well maintained and highly reliable two-dimensional nozzle convergent section adjusting mechanism is needed.
Disclosure of Invention
The purpose of the application is to provide a two-dimensional spray pipe convergence section adjustment mechanism to solve the problem that dynamic seal easily became invalid and causes the potential safety hazard between piston rod and the piston cylinder among the prior art.
The technical scheme of the application is as follows: a two-dimensional spray pipe convergence section adjusting mechanism comprises a round-turning square section and a convergence section which are sequentially connected from front to back; the device also comprises a convergence section adjusting mechanism which is arranged between the round square section and the convergence section and is used for adjusting the convergence section, wherein the convergence section comprises support plates arranged on the upper side and the lower side and side plates arranged on the left side and the right side; the convergence section adjusting mechanism comprises an actuating cylinder and a convergence adjusting plate, wherein the actuating cylinder is horizontally arranged, a cylinder body of the actuating cylinder is connected with a round rotating section, a horizontal sliding groove which is horizontally arranged and a vertical sliding groove which is vertically arranged are formed in each side plate, the horizontal sliding grooves are communicated with the inner side and the outer side of each side plate, the convergence adjusting plate comprises a plate body, a front connecting rod which is connected with the front side of the plate body, and a rear connecting rod which is connected with the rear side of the plate body, two ends of the front connecting rod are horizontally inserted into the horizontal sliding grooves on the two side plates, two ends of the rear connecting rod are horizontally inserted into the vertical sliding grooves on the two side plates, two ends of the front connecting rod extend out of the horizontal sliding grooves and are connected with piston rods of the actuating cylinder, and the actuating cylinder and the adjacent horizontal sliding grooves are positioned at the same height; the sealing rod is arranged on the inner edge of the side plate on the front connecting rod, and the sealing rod is used for pasting the horizontal sliding groove and always sealing the horizontal sliding groove.
Preferably, the support plate and the side plate are combined to form a rectangular structure, and the convergence section adjusting mechanisms are four groups and are respectively positioned at four corners of the convergence section.
Preferably, the support plate and the side plate are integrally formed.
Preferably, the vertical sliding groove is located at the rear end of the side plate.
The utility model provides a binary nozzle convergent section adjustment mechanism, including round change the side section, the convergence section with locate round change the side section and the convergence section between convergent section adjustment mechanism, the convergence section is including being located the extension board of upper and lower both sides and locating the curb plate of left and right sides, through seting up horizontal sliding groove and vertical sliding groove on the curb plate, the convergence adjustment board of convergence section adjustment mechanism includes with horizontal sliding groove sliding fit's preceding connecting rod, with vertical sliding groove slip complex back connecting rod, with preceding connecting rod and the plate body that the connecting rod links to each other, through setting up the barrel level of actuator cylinder and the actuator cylinder is in unify the height with the horizontal sliding groove that links to each other, can be in the horizontality all the time when promoting the convergence adjustment piece deflection, and do not need to take place the deflection like this, the piston rod of actuator cylinder can not become invalid with the dynamic seal between the barrel, just can not produce the oil leak yet, the safety of nozzle component also gets the guarantee.
Drawings
In order to more clearly illustrate the technical solutions provided by the present application, the following description will briefly refer to the accompanying drawings. It will be apparent that the figures described below are only some embodiments of the present application.
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a schematic view of a convergence adjusting plate structure of the present application;
fig. 3 is a schematic structural diagram of a side plate of the present application.
1. Round and turn the square section; 2. a support plate; 3. a convergence section; 4. an actuator cylinder; 5. a side plate; 6. a mounting base; 7. a convergence adjusting plate; 8. a horizontal sliding groove; 9. a vertical sliding groove; 10. a front connecting rod; 11. a plate body; 12. a rear connecting rod; 13. and a sealing rod.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present application more clear, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.
A two-dimensional spray pipe convergence section adjusting mechanism comprises a round-turning square section 1, a convergence section 3 and a convergence section adjusting mechanism. The round rotating square section 1 and the convergence section 3 are coaxially arranged, the actuating cylinder 4 is horizontally arranged and the cylinder body of the actuating cylinder is connected with the round rotating square section 1, wherein the front end of the rotary cylinder is the front end and the rear end of the aeroengine.
The convergence section adjusting mechanism is arranged between the round rotating square section 1 and the convergence section 3, and the convergence section 3 comprises support plates 2 arranged on the upper side and the lower side and side plates 5 arranged on the left side and the right side; the convergence section adjusting mechanism comprises an actuating cylinder 4 and a convergence adjusting plate 7, wherein an installation seat 6 is hinged between a cylinder body of the actuating cylinder 4 and the round rotating section 1, a horizontal sliding groove 8 which is horizontally arranged and a vertical sliding groove 9 which is vertically arranged are formed in a side plate 5, the horizontal sliding groove 8 is communicated with the inner side and the outer side of the side plate 5, the convergence adjusting plate 7 comprises a plate body 11, a front connecting rod 10 which is connected with the front side of the plate body 11 and a rear connecting rod 12 which is connected with the rear side of the plate body 11, two ends of the front connecting rod 10 are horizontally inserted into the horizontal sliding grooves 8 on the two side plates 5, two ends of the rear connecting rod 12 are horizontally inserted into the vertical sliding grooves 9 on the two side plates 5, two ends of the front connecting rod 10 extend out of the horizontal sliding grooves 8 and are connected with piston rods of the actuating cylinder 4, and the actuating cylinder 4 and the adjacent horizontal sliding grooves 8 are positioned at the same height; the sealing rod 13 is arranged on the upper edge of the front connecting rod 10 along the inner edge of the side plate 5, the sealing rod 13 is in sliding fit with the horizontal sliding groove 8, and the sealing rod 13 is used for attaching the horizontal sliding groove 8 and always sealing the horizontal sliding groove 8.
The front connecting rod 10 and the rear connecting rod 12 on the convergence adjusting plate 7 in the convergence section 3 are respectively positioned in the horizontal sliding groove 8 and the vertical sliding groove 9, so that the convergence adjusting plate 7 is in an inclined state, when the piston rod of the actuator cylinder 4 stretches out or contracts, the front connecting rod 10 horizontally slides in the horizontal sliding groove 8, and the rear connecting rod 12 vertically slides in the vertical sliding groove 9, so that the nozzle area of the convergence section 3 is adjusted. When the piston rod of the actuator cylinder 4 stretches out, the area of the outlet of the actuator cylinder 4 is reduced; whereas the driving becomes larger.
Because the convergent section 3 is in the process of adjusting, because the piston rod of the actuating cylinder 4 is connected with the front connecting rod 10, and the actuating cylinder 4 is in a horizontal state and is at the same height with the adjacent horizontal sliding groove 8, the cylinder body of the actuating cylinder 4 can be kept horizontal all the time in the process of working without deflection, the dynamic seal between the piston rod of the actuating cylinder 4 and the cylinder body can not be invalid, oil leakage can not be generated, and the safety of a spray pipe component can be ensured.
The sealing rod 13 is arranged to ensure that the convergence section 3 is always in a closed state when being regulated, and the convergence section 3 works stably to prevent air leakage.
Meanwhile, the convergence section adjusting mechanism is simple in structure, high in efficiency, good in maintainability and high in reliability, the complicated structure and low adjusting efficiency caused by the middle rotating mechanism are avoided, and the working efficiency of the two-dimensional spray pipe can be effectively improved.
Meanwhile, the depth of the horizontal sliding groove 8 is larger than that of the vertical sliding groove 9, so that the front connecting rod 10 in the horizontal sliding groove 8 cannot enter the vertical sliding groove 9 during horizontal sliding, and the working stability of the actuator cylinder 4 and the convergence adjusting plate 7 is guaranteed.
Preferably, the support plate 2 and the side plate 5 are combined to form a rectangular structure, four groups of convergence section adjusting mechanisms are arranged at four corners of the convergence section 3 respectively, and the convergence section 3 can be accurately and stably adjusted by arranging the four groups of convergence section adjusting mechanisms. When the spray pipe works, the four groups of convergence section adjusting mechanisms synchronously move, and the convergence adjusting plates 7 on the upper side and the lower side symmetrically move up and down, so that the stable adjusting function of the spray pipe is realized.
Preferably, the support plate 2 and the side plate 5 are integrally formed, thereby achieving stable fixation.
Preferably, the vertical sliding groove 9 is located at the rear end of the side plate 5.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in 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 (2)
1. A two-dimensional spray pipe convergence section adjusting mechanism comprises a round-turning square section (1) and a convergence section (3) which are sequentially connected from front to back; still including locating round commentaries on classics square section (1) and convergence section (3) between convergence section (3) to convergence section adjustment mechanism that adjusts, its characterized in that: the convergence section (3) comprises support plates (2) arranged on the upper side and the lower side, and side plates (5) arranged on the left side and the right side;
the convergence section adjusting mechanism comprises an actuating cylinder (4) and a convergence adjusting plate (7), wherein the actuating cylinder (4) is horizontally arranged and a cylinder body of the actuating cylinder is connected with a round rotating section (1), a horizontal sliding groove (8) horizontally arranged and a vertical sliding groove (9) vertically arranged are formed in the side plate (5), the horizontal sliding groove (8) is communicated with the inner side and the outer side of the side plate (5), the convergence adjusting plate (7) comprises a plate body (11), a front connecting rod (10) connected with the front side of the plate body (11) and a rear connecting rod (12) connected with the rear side of the plate body (11), two ends of the front connecting rod (10) are horizontally inserted into the horizontal sliding grooves (8) formed in the two side plates (5), two ends of the rear connecting rod (12) are horizontally inserted into the vertical sliding grooves (9) formed in the two side plates (5), two ends of the front connecting rod (10) extend out of the horizontal sliding grooves (8) and are connected with piston rods of the actuating cylinder (4), and the two ends of the front connecting rod (10) are positioned at the same height with the adjacent horizontal sliding grooves (8);
the upper edge of the front connecting rod (10) is provided with a sealing rod (13) along the inner edge of the side plate (5), and the sealing rod (13) is used for attaching the horizontal sliding groove (8) and always sealing the horizontal sliding groove (8);
the support plate (2) and the side plates (5) are combined to form a rectangular structure, and four groups of convergence section adjusting mechanisms are arranged at four corners of the convergence section (3) respectively;
the vertical sliding groove (9) is positioned at the rear end of the side plate (5).
2. The two-way nozzle convergent section adjustment mechanism of claim 1, wherein: the support plate (2) and the side plate (5) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111617345.8A CN114278458B (en) | 2021-12-27 | 2021-12-27 | Convergence section adjusting mechanism of two-dimensional spray pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111617345.8A CN114278458B (en) | 2021-12-27 | 2021-12-27 | Convergence section adjusting mechanism of two-dimensional spray pipe |
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| Publication Number | Publication Date |
|---|---|
| CN114278458A CN114278458A (en) | 2022-04-05 |
| CN114278458B true CN114278458B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111617345.8A Active CN114278458B (en) | 2021-12-27 | 2021-12-27 | Convergence section adjusting mechanism of two-dimensional spray pipe |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2608680B1 (en) * | 1986-12-17 | 1989-03-17 | Snecma | ADJUSTABLE TWO-DIMENSIONAL NOZZLE, ESPECIALLY FOR AN AIRPLANE REACTOR |
| ES2075782B1 (en) * | 1992-02-20 | 1998-03-16 | Sener Ing & Sist | ADJUSTABLE VARIABLE GEOMETRY NOZZLE FOR GAS TURBINES. |
| CN103334850B (en) * | 2013-06-26 | 2016-02-24 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of linkage type two-dimensional nozzle converging portion control mechanism |
| CN203335271U (en) * | 2013-07-04 | 2013-12-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Sliding beam cam type two-dimensional nozzle contraction section control mechanism |
| CN203335275U (en) * | 2013-07-05 | 2013-12-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Binary injection thrust vectoring nozzle |
| CN203335274U (en) * | 2013-07-11 | 2013-12-11 | 中国航空工业集团公司沈阳发动机设计研究所 | Square ring connecting rod type two-dimensional nozzle contraction section control mechanism |
| CN110886666B (en) * | 2019-11-08 | 2021-01-08 | 北京动力机械研究所 | Binary adjustable spray pipe with self-adaptive aerodynamic sealing |
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2021
- 2021-12-27 CN CN202111617345.8A patent/CN114278458B/en active Active
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