阅读说明：本技术 一种静子叶片转动角度调节及测定结构及其标定方法 (Stator blade rotation angle adjusting and measuring structure and calibration method thereof ) 是由 张岩 蒋琇琇 印雪梅 王�华 于 2020-04-09 设计创作，主要内容包括：本申请属于压气机静子叶片转动角度测定技术领域,具体涉及一种静子叶片转动角度调节及测定结构,包括：多个摇臂,每个摇臂的一端对应与一个静子叶片伸出压气机机匣的部分连接；联动环,与各个摇臂的另一端连接,套设在压气机机匣上,能够沿压气机匣的周向转动,以带动各个摇臂同步摆动,使各个静子叶片同步转动,以此同步调节各个静子叶片的角度；指针,以一个摇臂连接,以能够跟随该摇臂摆动；刻度盘,在压气机机匣上设置,以标识指针的摆动幅度,以此得到各个静子叶片转动的角度。此外,涉及一种静子叶片转动角度调节及测定结构的标定方法。(The application belongs to the technical field of compressor stator blade turned angle survey, concretely relates to stator blade turned angle is adjusted and is surveyed structure, include: one end of each rocker arm is correspondingly connected with a part of one stator blade extending out of the compressor casing; the linkage ring is connected with the other end of each rocker arm, is sleeved on the compressor casing and can rotate along the circumferential direction of the compressor casing so as to drive each rocker arm to synchronously swing and enable each stator blade to synchronously rotate, and thus the angle of each stator blade is synchronously adjusted; a pointer connected with a swing arm to be capable of swinging along with the swing arm; and the dial is arranged on the compressor casing to mark the swing amplitude of the pointer so as to obtain the rotating angle of each stator blade. In addition, the invention relates to a calibration method for the stator blade rotation angle adjusting and measuring structure.)

1. The utility model provides a stator blade turned angle adjusts and survey structure which characterized in that includes:

the compressor comprises a plurality of rocker arms (1), wherein one end of each rocker arm (1) is correspondingly connected with a part of a stator blade (2) extending out of a compressor casing (3);

the linkage ring (4) is connected with the other end of each rocker arm (1), sleeved on the compressor casing (3) and capable of rotating along the circumferential direction of the compressor casing (3) to drive each rocker arm (1) to synchronously swing so as to enable each stator blade (2) to synchronously rotate, and therefore the angle of each stator blade (2) is synchronously adjusted;

a pointer (5) connected with one of the rocker arms (1) so as to be able to swing following the rocker arm;

and the dial (6) is arranged on the compressor casing (3) to mark the swing amplitude of the pointer (5) so as to obtain the rotating angle of each stator blade (2).

2. The stator vane rotation angle adjustment and measurement structure according to claim 1,

the dial (6) marks that the swing amplitude of the pointer (5) is consistent with the rotating angle of each stator blade (2).

3. The stator vane rotation angle adjustment and measurement structure according to claim 1,

the compressor casing (3) is provided with a limiting groove extending along the circumferential direction;

the linkage ring (4) is provided with a limiting protrusion; the limiting protrusion is inserted into the limiting groove and can slide along the extending direction of the limiting groove.

4. The stator vane rotation angle adjustment and measurement structure according to claim 3,

the number of the limiting grooves is multiple, and the limiting grooves are distributed along the circumferential direction of the compressor casing (3);

the limiting protrusions are multiple, each limiting protrusion is correspondingly inserted into one limiting groove, and the limiting protrusions can slide along the extending direction of the corresponding limiting groove.

5. The stator vane rotation angle adjustment and measurement structure according to claim 3,

further comprising:

and the actuating cylinder is arranged on the compressor casing (3), and a piston rod of the actuating cylinder is connected with the linkage ring (4) so as to drive the linkage ring (4) to rotate along the circumferential direction of the compressor casing (3).

6. A calibration method for a stator blade rotation angle adjusting and measuring structure is characterized by comprising the following steps:

obtaining the transmission ratio of the stator blade rotation angle adjusting and measuring structure, wherein the transmission ratio is the ratio of the rotation angle of each stator blade (2) to the corresponding swing amplitude of the pointer (5);

the actual angle is enlarged on the scale (6) according to the transmission ratio.

7. The calibration method for the stator vane rotation angle adjustment and measurement structure according to claim 6,

the transmission ratio for obtaining the adjustment of the rotating angle of the stator blade and measuring the structure is as follows:

the linkage ring (4) is rotated to drive each rocker arm (1) to synchronously swing, each stator blade (2) is synchronously rotated, and the pointer (5) is made to swing along with the connected rocker arm (1);

obtaining the rotating angle of each stator blade (2);

acquiring a swing angle of the pointer (5);

the ratio of the rotating angle of each stator blade (2) to the swinging angle of the pointer (5) is used as a transmission ratio.

8. The calibration method for the stator vane rotation angle adjustment and measurement structure according to claim 7,

the method is characterized in that the rotating angle of each stator blade (2) is obtained by the following steps:

the rotating angle of each stator blade (2) is obtained through the extending length of the piston rod of the actuating cylinder.

9. The calibration method for the stator vane rotation angle adjustment and measurement structure according to claim 6,

setting the zero degree position of each stator blade (2);

when each stator blade (2) is at a zero degree position, the corresponding position of the pointer (5) on the dial (6) is marked as zero degree.

Technical Field

The application belongs to the technical field of measurement of the rotating angle of a stator blade of an air compressor, and particularly relates to a structure for adjusting and measuring the rotating angle of the stator blade and a calibration method thereof.

Background

In order to stably work in a compressor of an engine, the gas flow flowing through the compressor needs to be adjusted according to actual conditions, the angle of each stator blade in the compressor is adjustable, and the stator blades are adjusted to rotate synchronously through an operating mechanism so as to change the rotating angle of each stator blade synchronously, so that the gas flow flowing through the compressor is adjusted.

The existing operating mechanism comprises a plurality of rocker arms, a linkage ring and an actuating cylinder, wherein one end of each rocker arm is correspondingly connected with a part of a stator blade extending out of a casing of the compressor; the linkage ring is sleeved on the compressor casing and connected with the other end of each rocker arm; the actuating cylinder is arranged on the compressor casing, and a piston rod of the actuating cylinder is connected with the linkage ring so as to drive the linkage ring to rotate along the circumferential direction of the compressor casing, so that the rocker arms are driven to synchronously swing, the stator blades synchronously rotate, and the synchronous adjustment of the rotating angles of the stator blades is realized.

In order to accurately control the air flow passing through the compressor, the rotating angle of each stator blade needs to be known and accurately controlled, the extending length of a piston rod of an actuating cylinder in an operating mechanism is set to be in one-to-one correspondence with the rotating angle of each stator blade, the rotating angle of each stator blade is obtained by observing the extending length of the piston rod of the actuating cylinder, and the extending length of the piston rod of the actuating cylinder is inconvenient to observe and low in observation efficiency, so that the implementation difficulty in determining and accurately controlling the rotating angle of each stator blade by adopting the technical scheme is caused.

The present application is made in view of the above-mentioned drawbacks of the prior art.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.

Disclosure of Invention

The present application is directed to a stator vane rotation angle adjusting and measuring structure and a calibration method thereof, which overcome or alleviate at least one of the known technical disadvantages.

The technical scheme of the application is as follows:

one aspect provides a stator blade turned angle adjusts and survey structure, includes:

one end of each rocker arm is correspondingly connected with a part of one stator blade extending out of the compressor casing;

the linkage ring is connected with the other end of each rocker arm, is sleeved on the compressor casing and can rotate along the circumferential direction of the compressor casing so as to drive each rocker arm to synchronously swing and enable each stator blade to synchronously rotate, and thus the angle of each stator blade is synchronously adjusted;

a pointer connected with a swing arm to be capable of swinging along with the swing arm;

and the dial is arranged on the compressor casing to mark the swing amplitude of the pointer so as to obtain the rotating angle of each stator blade.

According to at least one embodiment of the present application, the dial-indicating hands are swung to an amplitude corresponding to the angle of rotation of each stator blade.

According to at least one embodiment of the application, the compressor casing is provided with a limit groove extending along the circumferential direction;

the linkage ring is provided with a limiting protrusion; the limiting protrusion is inserted into the limiting groove and can slide along the extending direction of the limiting groove.

According to at least one embodiment of the application, the number of the limiting grooves is multiple, and the limiting grooves are distributed along the circumferential direction of the compressor casing;

the limiting protrusions are multiple, each limiting protrusion is correspondingly inserted into one limiting groove, and the limiting protrusions can slide along the extending direction of the corresponding limiting groove.

According to at least one embodiment of the present application, further comprising:

and the actuating cylinder is arranged on the compressor casing, and a piston rod of the actuating cylinder is connected with the linkage ring so as to drive the linkage ring to rotate along the circumferential direction of the compressor casing.

On the other hand, the calibration method for the stator blade rotation angle adjusting and measuring structure comprises the following steps:

obtaining the transmission ratio of the stator blade rotation angle adjusting and measuring structure, wherein the transmission ratio is the ratio of the rotation angle of each stator blade to the corresponding swing amplitude of the pointer;

the actual angle is amplified on the scale according to the transmission ratio.

According to at least one embodiment of the application, the transmission ratio of the stator blade rotation angle adjusting and measuring structure is obtained, and specifically:

the linkage ring is rotated to drive each rocker arm to synchronously swing, so that each stator blade synchronously rotates, and the pointer swings along with the connected rocker arms;

acquiring the rotating angle of each stator blade;

acquiring a swing angle of the pointer;

and taking the ratio of the rotating angle of each stator blade to the swinging angle of the pointer as a transmission ratio.

According to at least one embodiment of the present application, the rotation angle of each stator blade is obtained, specifically:

the rotating angle of each stator blade is obtained through the extending length of the piston rod of the actuating cylinder.

According to at least one embodiment of the present application, a zero degree position of each stator vane is set;

when each stator vane is at a zero degree position, the corresponding position of the pointer on the dial is identified as zero degrees.

Drawings

FIG. 1 is a schematic view of a stator vane rotation angle adjustment and measurement structure provided in an embodiment of the present application;

FIG. 2 is a schematic diagram of a stator blade rotation angle adjusting and measuring structure calibration method provided by an embodiment of the application;

wherein:

1-a rocker arm; 2-stator blades; 3-compressor casing; 4-a linkage ring; 5-a pointer; 6-dial.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1-2.

One aspect provides a stator blade turned angle adjusts and survey structure, includes:

one end of each rocker arm 1 is correspondingly connected with a part of one stator blade 2 extending out of a compressor casing 3;

the linkage ring 4 is connected with the other end of each rocker arm 1, sleeved on the compressor casing 3 and capable of rotating along the circumferential direction of the compressor casing 3 to drive each rocker arm 1 to synchronously swing so as to enable each stator blade 2 to synchronously rotate, and therefore the angle of each stator blade 2 is synchronously adjusted;

a pointer 5 connected with a swing arm 1 to be capable of swinging following the swing arm;

and a dial 6 provided on the compressor casing 3 to indicate the amplitude of oscillation of the needle 5, thereby obtaining the angle of rotation of each stator blade 2.

To the stator blade turning angle adjusting and measuring structure disclosed in the above embodiment, those skilled in the art can understand that the structure can realize synchronous adjustment of the turning angle of each stator blade 2 on the one hand, and on the other hand, can identify the turning amplitude of the pointer 5 through the dial 6, and can correspondingly obtain the turning angle of each stator blade 2 through the turning amplitude, thereby being capable of quickly and accurately obtaining the angular position of each stator blade 2, and accurately adjusting the turning angle of each stator blade 2 based on the turning amplitude, and realizing effective control of the gas flow passing through the compressor.

According to at least one embodiment of the present application, the dial 6 identifies that the amplitude of oscillation of the pointer 5 coincides with the angle of rotation of the respective stator blade 2.

With regard to the stator vane rotation angle adjusting and measuring structure disclosed in the above-mentioned embodiment, it can be understood by those skilled in the art that, due to the reasons of structural configuration and transmission, the swing amplitude of the pointer may not always coincide with the rotation angle of each stator vane 2, and the swing amplitude of the pointer 5 marked by the dial 6 and the rotation angle of each stator vane 2 are set to coincide, that is, in the case that each stator vane 2 rotates by a certain angle, the swing amplitude of the pointer 5 marked by the dial 6 is the angle, so that the rotation angle of each stator vane 2 can be obtained quickly and accurately.

According to at least one embodiment of the present application, the compressor casing 3 has a circumferentially extending limiting groove thereon;

the linkage ring 4 is provided with a limiting protrusion; the limiting protrusion is inserted into the limiting groove and can slide along the extending direction of the limiting groove.

For the stator blade rotation angle adjusting and measuring structure disclosed in the above embodiment, as can be understood by those skilled in the art, the limiting protrusion on the link ring 4 is inserted into the limiting groove on the compressor casing 3, so that on one hand, relative sliding of the link ring 4 along the axial direction of the compressor casing 3 can be avoided, and on the other hand, the limiting groove is arranged along the circumferential length of the compressor casing 3 along with the fact that the rotation range of each stator blade 2 needs to be adjusted, so as to limit the rotation range of the link ring 4 and avoid the over-limit adjustment of the rotation angle of each stator blade 2.

According to at least one embodiment of the present application, there are a plurality of limiting grooves, each of which is distributed along the circumferential direction of the compressor casing 3;

the limiting protrusions are multiple, each limiting protrusion is correspondingly inserted into one limiting groove, and the limiting protrusions can slide along the extending direction of the corresponding limiting groove.

According to at least one embodiment of the present application, further comprising:

and the actuating cylinder is arranged on the compressor casing 3, and a piston rod of the actuating cylinder is connected with the linkage ring 4 so as to drive the linkage ring 4 to rotate along the circumferential direction of the compressor casing 3.

On the other hand, the calibration method for the stator blade rotation angle adjusting and measuring structure comprises the following steps:

obtaining the transmission ratio of the stator blade rotation angle adjusting and measuring structure, wherein the transmission ratio is the ratio of the rotation angle of each stator blade 2 to the corresponding swing amplitude of the pointer 5;

the actual angle is enlarged on the scale 6 according to the transmission ratio.

With respect to the calibration method for the stator vane rotational angle adjustment and measurement structure disclosed in the above embodiment, it will be understood by those skilled in the art that the actual angle is enlarged on the scale 6 according to the transmission ratio, so that the swing range of the indicator needle 5 on the scale 6 can be made to coincide with the rotational angle of each stator vane 2.

As shown in fig. 2, the transmission ratio indicates a ratio of a rotation angle of each stator blade 2 to a corresponding swing amplitude of the pointer 5, when the transmission ratio is 1:0.7, that is, each stator blade 2 rotates by 1 degree, the swing amplitude of the pointer 5 is 0.7 degree, the actual angle on the scale 6 is amplified according to the transmission ratio of 1:0.7, the actual angle change of 3 ° 30' is marked as the change of 5 ° on the scale 5, the actual angle change of 28 ° is marked as the change of 40 °, the swing amplitude of the pointer 5 marked by the scale 6 can be made to be consistent with the rotation angle of each stator blade 2, and further, the swing amplitude of the pointer 5 marked by the scale 6 can quickly obtain the rotation angle of each stator blade 2.

According to at least one embodiment of the application, the transmission ratio of the stator blade rotation angle adjusting and measuring structure is obtained, and specifically:

the link ring 4 is rotated to drive each rocker arm 1 to synchronously swing, each stator blade 2 is synchronously rotated, and the pointer 5 is made to swing along with the connected rocker arm 1;

acquiring the rotating angle of each stator blade 2;

acquiring the swing angle of the pointer 5;

the ratio of the angle of rotation of each stator blade 2 to the angle of oscillation of the pointer 5 is taken as the transmission ratio.

According to at least one embodiment of the present application, since the angle of rotation of each stator vane 2 has a one-to-one correspondence relationship with the extension length of the piston rod of the ram, the angle of rotation of each stator vane 2 can be obtained from the extension length of the piston rod of the ram.

According to at least one embodiment of the present application, the zero degree position of each stator blade 2 is set;

when each stator vane 2 is in the zero degree position, the corresponding position of the pointer 5 on the dial 6 is identified as zero degrees.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.