CN212110376U - Thermocouple installation component - Google Patents
Thermocouple installation component Download PDFInfo
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- CN212110376U CN212110376U CN202021006205.8U CN202021006205U CN212110376U CN 212110376 U CN212110376 U CN 212110376U CN 202021006205 U CN202021006205 U CN 202021006205U CN 212110376 U CN212110376 U CN 212110376U
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- hole
- clamp spring
- elastic clamp
- guide sleeve
- thermocouple
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Abstract
The present disclosure relates to a thermocouple installation assembly, comprising: the mounting seat is fixedly arranged on the outer wall of the engine stator and is provided with a first through hole penetrating through the outer wall of the stator; the vibration damping bushing is at least partially positioned in the first through hole and is arranged between the engine stator blade and the mounting seat along the height direction of the vibration damping bushing, and a second through hole capable of accommodating a thermocouple is formed in the vibration damping bushing; and the elastic clamp spring is abutted against one end, far away from the stator blade, of the vibration reduction bushing and clamped in the groove body on the inner wall surface of the first through hole so as to limit the vibration reduction bushing. Based on the technical content, the embodiment of the disclosure can avoid the failure of the thermocouple due to vibration, and improve the stability of the thermocouple mounted on the outer wall of the engine stator.
Description
Technical Field
The utility model relates to an aeroengine assembly field especially relates to a mounting assembly of thermocouple.
Background
The flow channel temperature of the aero-engine is an important index in the running process of the engine, and in order to collect the flow channel temperature of the aero-engine, the flow channel temperature needs to be measured through a thermocouple fixed on the outer wall of a stator of the engine, so that the thermocouple needs to be fixedly installed on the outer wall of the stator of the engine through an installation seat.
However, the engine may generate certain vibration in the operating state, and after the vibration is transmitted to the thermocouple from the engine through the mounting seat, the thermocouple may be easily disabled due to the vibration, which affects the collection of the temperature of the flow passage of the aircraft engine, and may further affect the operating safety of the engine.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a thermocouple mounting assembly, which can prevent the thermocouple from failing due to vibration and improve the stability of the thermocouple mounted on the outer wall of the engine stator.
In one aspect of the present disclosure, there is provided a thermocouple mounting assembly including:
the mounting seat is fixedly arranged on the outer wall of the engine stator and is provided with a first through hole penetrating through the outer wall of the stator;
the vibration damping bushing is at least partially positioned in the first through hole and is arranged between the engine stator blade and the mounting seat along the height direction of the vibration damping bushing, and a second through hole capable of accommodating a thermocouple is formed in the vibration damping bushing; and
and the elastic clamp spring is abutted against one end, far away from the stator blade, of the vibration reduction bushing and clamped in the groove body on the inner wall surface of the first through hole so as to limit the vibration reduction bushing.
In some embodiments, the mounting assembly further comprises:
the guide sleeve is internally provided with a third through hole, the sectional area of the third through hole is gradually reduced, wherein the sectional area of the third through hole is not smaller than the outer diameter of the elastic clamp spring at the larger end and is equal to the inner diameter of the first through hole at the smaller end; and
the push rod is of a cylindrical structure, and the outer diameter of the cylindrical structure is not larger than the inner diameter of the first through hole and not smaller than the inner hole diameter of the elastic clamp spring.
In some embodiments, the guide sleeve is configured to: the smaller end of the sectional area of the third through hole is abutted against the first through hole of the mounting seat, so that the third through hole is communicated with the inside of the first through hole;
the pushrod is configured to: and pushing the elastic clamp spring along the height direction of the third through hole so that the elastic clamp spring is compressed and then enters the first through hole, and then continuously pushing the elastic clamp spring along the height direction of the first through hole so that the elastic clamp spring is clamped in the groove body.
In some embodiments, the guide sleeve further comprises:
a conical head formed outside the guide sleeve and close to the end with larger cross-sectional area of the third through hole;
the mount pad still includes:
the taper hole is formed in the first through hole and located at one end, far away from the stator blade, of the first through hole, and the taper hole can be matched with the taper head, so that the guide sleeve is stably butted on the mounting seat.
In some embodiments, the guide sleeve further comprises:
the first step flange is arranged on the outer side of the guide sleeve and is close to the end, with the smaller cross-sectional area, of the third through hole;
the push rod further includes:
and the second step flange is arranged on the outer side of the push rod and is positioned at the end part of the push rod.
In some embodiments, the outer diameter of the elastic clamp spring in an uncompressed state is larger than the inner diameter of the first through hole, and the thickness of the elastic clamp spring is not larger than the width of the groove body.
Therefore, according to the embodiment of the disclosure, the adverse effect of the vibration of the engine on the thermocouple is reduced through the vibration reduction bushing, and the reliability and the service life of the thermocouple are improved; the installation efficiency of the elastic clamp spring is improved through the guide sleeve and the push rod, the rejection rate of the elastic clamp spring is reduced, and the operation difficulty of thermocouple installation is reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
The present disclosure may be more clearly understood from the following detailed description, taken with reference to the accompanying drawings, in which:
FIG. 1 is a schematic block diagram of an engine case according to some embodiments of the present disclosure;
FIG. 2 is a cross-sectional angled structural schematic view of a mounting assembly according to some embodiments of the present disclosure;
fig. 3 is a schematic structural view of an elastic clamp spring according to some embodiments of the present disclosure;
fig. 4 is a schematic structural view of a mounting assembly in an initial mounting state of an elastic clamp spring according to some embodiments of the present disclosure;
fig. 5 is a schematic structural view of a mounting assembly during installation of an elastic clamp spring according to some embodiments of the present disclosure;
fig. 6 is a schematic structural view of the mounting assembly in a state where the elastic clamp spring is completely mounted according to some embodiments of the present disclosure;
in the figure:
1, mounting a base; 11, a first via hole; 12, a tapered hole; 13, a groove body; 2, outer wall of engine stator; 3, damping bush; 31, a second through hole; 4, an elastic clamp spring; 5, guiding a guide sleeve; 51, a third through hole; 52, a conical head; 53, a first stepped flange; 6, a push rod; 61, a second stepped flange; and 7, engine stator blades.
It should be understood that the dimensions of the various parts shown in the figures are not drawn to scale. Further, the same or similar reference numerals denote the same or similar components.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the disclosure, its application, or uses. The present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.
The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present disclosure, when a specific device is described as being located between a first device and a second device, there may or may not be intervening devices between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
All terms (including technical or scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
As shown in FIGS. 1-6:
in one aspect of the present disclosure, there is provided a thermocouple mounting assembly including:
the mounting seat 1 is fixedly arranged on the outer wall 2 of the engine stator and is provided with a first through hole 11 penetrating through the outer wall of the stator;
the damping bush 3 is at least partially positioned in the first through hole 11 and is arranged between the engine stator blade 7 and the mounting seat 1 along the height direction of the damping bush 3, and a second through hole 31 capable of accommodating a thermocouple is formed in the damping bush 3; and
and the elastic clamp spring 4 abuts against one end, far away from the stator blade, of the damping bush 3 and is clamped in the groove body 13 on the inner wall surface of the first through hole 11 so as to limit the damping bush 3.
In order to prevent the thermocouple from failing due to the influence of engine vibration, the embodiment of the application reduces the influence of the engine vibration on the thermocouple by installing the damping bush 3 between the thermocouple installation seat 1 and the engine stator blade 7. In order to prevent the damping bush 3 from coming off from the mounting seat 1, the elastic snap spring 4 is adopted to block the outer end face of the damping bush 3 in the embodiment of the application, and the damping bush 3 is limited by being clamped in the groove body 13 of the inner hole of the mounting seat 1.
The structure of the elastic clamp spring 4 is as shown in fig. 3, and the aperture of the first through hole 11 of the mounting base 1 is smaller than the outer diameter of the elastic clamp spring 4, so that the elastic clamp spring 4 needs to be properly compressed and conveyed into the groove body 13 along the height direction of the first through hole 11 when the elastic clamp spring 4 is mounted. However, the outer diameter of the elastic clamp spring 4 is small, usually less than 15mm, and the elastic clamp spring is difficult to screw in manually. If the assembly mode that the elastic clamp spring 4 is firstly obliquely placed into the first through hole 11, then the elastic clamp spring 4 is righted by a screwdriver or a screwdriver and other tools, and finally the elastic clamp spring 4 is pushed into the groove body 13 is adopted, the rejection rate is extremely high.
In response to the above assembly problem, in some embodiments, the mounting assembly further comprises:
the guide sleeve 5 is internally provided with a third through hole 51, the sectional area of the third through hole 51 is reduced gradually, wherein the sectional area of the third through hole 51 is not smaller than the outer diameter of the elastic clamp spring 4 at the larger end and is equal to the inner diameter of the first through hole 11 at the smaller end; and
the push rod 6 is of a cylindrical structure, and the outer diameter of the cylindrical structure is not larger than the inner diameter of the first through hole 11 and not smaller than the inner hole diameter of the elastic clamp spring 4.
The sectional area of the third through hole 51 inside the guide sleeve 5 is gradually reduced, so that the elastic clamp spring 4 is continuously deformed in the process of being pushed from the third through hole 51, the elastic clamp spring 4 is prevented from being damaged due to sudden change of the shape and the structure, and the rejection rate of the elastic clamp spring 4 is reduced.
And the outer diameter of the push rod 6 for pushing the elastic clamp spring 4 is slightly smaller than the inner diameters of the third through hole 51 arranged in the guide sleeve 5 and the first through hole 11 arranged in the thermocouple mounting seat 1, so that a small gap is formed between the push rod 6 and the third through hole 51 or the first through hole 11, and the clamp spring is prevented from inclining at a large angle while the push rod 6 slides.
As shown in FIGS. 4-6, in some embodiments, the guide sleeve 5 is configured to: the smaller end of the cross section area of the third through hole 51 is abutted against the first through hole 11 of the mounting seat 1, so that the third through hole 51 is communicated with the inside of the first through hole 11;
the push rod 6 is configured to: the elastic clamp spring 4 is pushed along the height direction of the third through hole 51, so that the elastic clamp spring 4 enters the first through hole 11 after being compressed, and then the elastic clamp spring 4 is pushed along the height direction of the first through hole 11, so that the elastic clamp spring 4 is clamped in the groove body 13.
In order to improve the accuracy and stability of the alignment process of the first through hole 11 and the third through hole 51, in some embodiments, the guide sleeve 5 further comprises:
a tapered head 52 formed outside the guide sleeve 5 and near the end of the third through hole 51 where the sectional area is larger;
mount pad 1 still includes:
and the tapered hole 12 is formed inside the first through hole 11 and is positioned at one end of the first through hole 11 far away from the stator blade, and the tapered hole 12 can be matched with the tapered head 52 so that the guide sleeve 5 is stably butted to the mounting seat 1.
To facilitate handling by the operator, in some embodiments, the guide sleeve 5 further comprises:
a first stepped flange 53 provided outside the guide sleeve 5 and close to the end of the third through hole 51 having a smaller cross-sectional area;
the push rod 6 further includes:
and a second stepped flange 61 disposed outside the push rod 6 and at an end of the push rod 6.
In order to enable the elastic clamp spring 4 to be firmly clamped inside the groove body 13, in some embodiments, the outer diameter of the elastic clamp spring 4 in an uncompressed state is larger than the inner diameter of the first through hole 11, and the thickness of the elastic clamp spring 4 is not larger than the width of the groove body 13.
The installation process of the elastic clamp spring 4 is further described with reference to the accompanying drawings as follows:
aligning the conical head 52 of the guide sleeve 5 with the conical hole 12 of the mounting base 1, pressing the guide sleeve 5 onto the mounting base 1, making the axis of the first through hole 11 of the guide sleeve 5 coincide with the axis of the third through hole 51 of the mounting base 1, and then placing the elastic clamp spring 4 into the end with larger cross-sectional area of the third through hole 51 of the guide sleeve 5;
as shown in fig. 5, the push rod 6 pushes the elastic clamp spring 4 to move along the third through hole 51 of the guide sleeve 5, so that the outer diameter of the elastic clamp spring 4 is uniformly contracted until the outer diameter is consistent with the inner diameter of the first through hole 11 of the mounting seat 1;
as shown in fig. 6, the push rod 6 continues to push the elastic clamp spring 4 to move along the first through hole 11 of the mounting seat 1, and after the clamp spring reaches the position of the groove body 13, the elastic clamp spring 4 is expanded under the action of the elastic force thereof and then is clamped into the clamping groove, so that the limiting of the damping bush 3 is completed.
Therefore, according to the embodiment of the present disclosure, the adverse effect of the thermocouple from the engine vibration is reduced by the vibration reduction bush 3, and the reliability and the service life of the thermocouple are improved; the installation efficiency of the elastic clamp spring 4 is improved through the guide sleeve 5 and the push rod 6, the rejection rate of the elastic clamp spring 4 is reduced, and the operation difficulty of thermocouple installation is reduced.
Thus, various embodiments of the present disclosure have been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.
Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the present disclosure. It will be understood by those skilled in the art that various changes may be made in the above embodiments or equivalents may be substituted for elements thereof without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.
Claims (6)
1. A thermocouple mounting assembly, comprising:
the mounting seat (1) is fixedly arranged on the outer wall (2) of the engine stator and is provided with a first through hole (11) penetrating through the outer wall of the stator;
the damping bushing (3) is at least partially positioned in the first through hole (11) and is arranged between the engine stator blade (7) and the mounting seat (1) along the height direction of the damping bushing, and a second through hole (31) capable of accommodating a thermocouple is formed in the damping bushing (3); and
and the elastic clamp spring (4) is abutted against one end, far away from the stator blade, of the vibration reduction bushing (3) and clamped in a groove body (13) on the inner wall surface of the first through hole (11) so as to limit the vibration reduction bushing (3).
2. The mounting assembly of claim 1, further comprising:
the guide sleeve (5) is internally provided with a third through hole (51), the sectional area of the third through hole (51) is reduced gradually, the sectional area of the third through hole (51) is not smaller than the outer diameter of the elastic clamp spring (4) at the larger end, and is equal to the inner diameter of the first through hole (11) at the smaller end; and
and the push rod (6) is of a cylindrical structure, and the outer diameter of the cylindrical structure is not larger than the inner diameter of the first through hole (11) and not smaller than the inner hole diameter of the elastic clamp spring (4).
3. The mounting assembly according to claim 2, wherein the guide sleeve (5) is configured to: the smaller end of the cross section area of the third through hole (51) is abutted against the first through hole (11) of the mounting seat (1) so that the third through hole (51) is communicated with the interior of the first through hole (11);
the push rod (6) is configured to: the elastic clamp spring (4) is pushed along the height direction of the third through hole (51) so that the elastic clamp spring (4) enters the first through hole (11) after being compressed, and then the elastic clamp spring (4) is continuously pushed along the height direction of the first through hole (11) so that the elastic clamp spring (4) is clamped in the groove body (13).
4. The mounting assembly according to claim 2, wherein the guide sleeve (5) further comprises:
a tapered head (52) formed outside the guide sleeve (5) and near the end of the third through hole (51) where the sectional area is larger;
the mount (1) further comprises:
the conical hole (12) is formed inside the first through hole (11) and is located at one end, far away from the stator blade, of the first through hole (11), and the conical hole (12) can be matched with the conical head (52) so that the guide sleeve (5) can be stably butted to the mounting seat (1).
5. The mounting assembly according to claim 2, wherein the guide sleeve (5) further comprises:
a first stepped flange (53) provided outside the guide sleeve (5) and close to the end of the third through hole (51) having a smaller cross-sectional area;
the push rod (6) further comprises:
and the second step flange (61) is arranged on the outer side of the push rod (6) and is positioned at the end part of the push rod (6).
6. The mounting assembly according to claim 1, wherein the outer diameter of the elastic clamp spring (4) in an uncompressed state is larger than the inner diameter of the first through hole (11), and the thickness of the elastic clamp spring (4) is not larger than the width of the groove body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021006205.8U CN212110376U (en) | 2020-06-04 | 2020-06-04 | Thermocouple installation component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021006205.8U CN212110376U (en) | 2020-06-04 | 2020-06-04 | Thermocouple installation component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212110376U true CN212110376U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021006205.8U Active CN212110376U (en) | 2020-06-04 | 2020-06-04 | Thermocouple installation component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212110376U (en) |
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2020
- 2020-06-04 CN CN202021006205.8U patent/CN212110376U/en active Active
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