Sensor assembly

Abstract

The utility model aims to provide a sensor assembly, which can solve the problem that the tolerance of a large-size structure in an engine does not meet the design requirement. In order to achieve the purpose, the sensor assembly is installed on a casing and comprises a sleeve assembly, a sensor probe, a jacket nut and a gasket. The sleeve assembly penetrates through the case and is provided with a first end located on the outer side of the case and a second end located on the inner side of the case in the installation state. The sensor probe is arranged at the second end, the sensor probe is fixedly connected with the second end through the outer sleeve nut, and the gasket is arranged between the end portion of the second end and the sensor probe.

Description

Technical Field

[0001] The utility model relates to the technical field of gas turbine engines, in particular to a sensor component. Background Art

[0002] The large bypass ratio gas turbine engine has the advantages of low fuel consumption, and its larger size can provide greater thrust for the aircraft. However, its larger size structure also makes it difficult to assemble. After the dimension chain calculation, it is found that the structure cannot meet the tolerance design requirements.

[0003] For example, when a sensor needs to be installed in an engine, it is often encountered that the sensor cannot meet the tolerance design requirements during the installation process, resulting in the sensor being unable to detect at the specified position where it is required to be detected.

[0004] Therefore, it is necessary to provide a sensor assembly that can solve the problem that the large-size structural tolerance in the engine does not meet the design requirements. Utility Model Content

[0005] The utility model aims to provide a sensor assembly, which can solve the problem that the tolerance of a large-size structure in an engine does not meet the design requirements.

[0006] The sensor assembly for achieving the above-mentioned purpose is installed on the casing and includes:

[0007] A sleeve assembly is passed through the casing and has a first end located outside the casing and a second end located inside the casing in an installed state;

[0008] a sensor probe, disposed at the second end;

[0009] a sheath nut, for fixedly connecting the sensor probe to the second end; and

[0010] A gasket is arranged between the second end portion and the sensor probe.

[0011] In one or more embodiments, the sensor probe has an external thread, the second end has an external thread, and in the installed state, the outer sleeve nut is threadedly connected to the sensor probe, the second end and the outer periphery of the gasket.

[0012] In one or more embodiments, the number of spacers disposed between the second end and the sensor probe is two or more.

[0013] In one or more embodiments, the two or more gaskets have different thicknesses.

[0014] In one or more embodiments, the thickness of the spacer disposed between the second end and the sensor probe is adjustable.

[0015] In one or more embodiments, the thickness of the gasket is 5.79 mm to 6.79 mm.

[0016] In one or more embodiments, a lead wire is provided in the sleeve assembly, and the sensor probe is connected to a device outside the receiver through the lead wire.

[0017] In one or more embodiments, the casing has a sensor mounting seat, and the sleeve assembly passes through the casing through the sensor mounting seat.

[0018] In one or more embodiments, the sleeve assembly has a connecting flange arranged around the outer circumference, and a connecting hole is provided in the connecting flange, and is fixedly connected to the mounting seat through the connecting hole.

[0019] In one or more embodiments, the sensor component is a rotation speed sensor, the casing is an intermediate casing, a rotor unit is disposed in the intermediate casing, and the sensor probe is disposed toward the rotor unit.

[0020] The beneficial effects of the utility model are:

[0021] The speed sensor mounting structure installation assembly is suitable for engines with long-sized structures. By adding a sleeve nut and a gasket, the assembly spacing between the speed sensor and the component to be tested can be adjusted by the thickness of the gasket 4, which can meet the assembly tolerance design requirements. At the same time, the size of the gasket can be adjusted according to the test range of the actual speed sensor used to meet the test range requirements of the sensor and ensure the accuracy of the test results.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0024] Figure 1 A schematic diagram showing the installation of the sensor assembly on the casing;

[0025] Figure 2 A partially enlarged schematic diagram of the second end of the sleeve assembly according to some embodiments of the sensor assembly is shown. DETAILED DESCRIPTION

[0026] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0028] like Figure 1 A schematic diagram showing the sensor assembly being installed on the casing is shown in FIG. Figure 1 As shown, the dimension chain of the sensor assembly 100 is composed of: A is the radial height of the outer mounting seat of the casing, B is the length of the sensor sleeve, C is the length of the slot, D is the radial height of the high teeth of the speed measuring wheel, and E is the radial spacing required for assembly.

[0029] Due to the large length B of the sensor and the dimensional tolerance of other structures, the result obtained after the dimension chain calculation is much larger than the radial spacing E required for assembly. Since the sensor has a fixed measurement range, the larger the test distance, the weaker the sensor signal; conversely, the stronger it is. In order to ensure the feasibility of assembly and the accuracy of the measurement results, the structure should be adjusted so that the calculation result of the dimension chain of the radial spacing E required for assembly is within the design range.

[0030] In order to improve the assembly performance of the structure and the accuracy of measurement, according to one aspect of the present application, a sensor assembly is provided, which can solve the assembly problem of a large-sized engine structure.

[0031] The sensor assembly 100 is installed on the receiver 200, and includes a sleeve assembly 1 and a sensor probe 2. The sleeve assembly 1 passes through the receiver 200 and has a first end 11 located on the outside of the receiver 200 and a second end 12 located on the inside of the receiver 200 in the installed state. The sensor probe 2 is arranged at the second end 12.

[0032] Figure 2 A partially enlarged schematic diagram of the second end of the sleeve assembly according to some embodiments of the sensor assembly is shown. The sensor assembly 100 also includes an outer sleeve nut 3 and a gasket 4. The outer sleeve nut 3 fixes the sensor probe 2 to the second end 12, and the gasket 4 is arranged between the end of the second end 12 and the sensor probe 2.

[0033] The above-mentioned speed sensor mounting structure installation assembly is suitable for engines with long-sized structures. By adding a sleeve nut 3 and a gasket 4, the assembly spacing between the speed sensor and the component to be tested can be adjusted by the thickness of the gasket 4, which can meet the assembly tolerance design requirements. At the same time, the size of the gasket can be adjusted according to the test range of the actual speed sensor used to meet the test range requirements of the sensor and ensure the accuracy of the test results.

[0034] When the sleeve 1 has been processed, and the distance between the sensor probe and the measured part is large due to various tolerance accumulations, and the sleeve 1 cannot be reprocessed, the distance between the sensor probe and the measured part can be adjusted by the gasket 4 to meet the test range requirements of the sensor and ensure the accuracy of the measurement results.

[0035] The speed sensor is installed as follows:

[0036] 1) Combine the dimension chain calculation and physical measurement to obtain the tolerance value that needs to be adjusted; 2) According to the tolerance value calculation result, select the appropriate gasket 4 so that its thickness meets the assembly requirements; 3) Install the gasket 4 into the sensor assembly and tighten it Figure 2 The outer sleeve nut 3 shown; 4) ensures that after the outer sleeve nut 3 is tightened, the assembly spacing meets the design requirements, and at the same time can ensure that the measuring distance of the sensor assembly is within the allowable range.

[0037] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0038] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0039] In some embodiments of the sensor assembly, the sensor probe 2 has an external thread, and the second end 12 has an external thread. In the installed state, the outer sleeve nut 4 is threadedly connected to the sensor probe 12, the second end 12 and the outer periphery of the gasket 3, thereby ensuring the connection relationship between the three. In some specific embodiments, the outer diameter of the gasket 3 can be slightly smaller than the outer diameter of the sensor probe 2 and the second end 12, thereby ensuring that the outer sleeve nut 4 can be easily installed on the outer periphery of the sensor probe 2 and the second end 12.

[0040] In some embodiments of the sensor assembly, the number of gaskets 3 arranged between the second end 12 and the sensor probe 2 is two or more, so that replacement is convenient. For different assembly times, different numbers of gaskets 3 can be selected according to the measured tolerance value to adjust the overall thickness of the gasket 3, thereby realizing rapid assembly of the speed sensor.

[0041] In some embodiments of the sensor assembly, the two or more gaskets 3 have different thicknesses, thereby further increasing the range of the adjustable distance between the probe 2 at the second end 12 and the end face of the second end 12 in the sensor assembly, so as to further ensure that the measuring distance of the sensor is within the allowable range.

[0042] In some embodiments of the sensor assembly, the thickness of the gasket arranged between the second end 12 and the sensor probe 2 is adjustable, for example, the thickness is adjustable by an elastic gasket, thereby further increasing the range of the adjustable distance between the probe 2 and the end face of the second end 12, so as to further ensure that the measuring distance of the sensor is within the allowable range.

[0043] In some embodiments of the sensor assembly, the thickness of the gasket 3 is between 5.79 mm and 6.79 mm to ensure that the measurement distance of the sensor is within the allowable range.

[0044] In some embodiments of the sensor assembly, a lead wire is provided in the sleeve assembly 1, and the sensor probe 2 is connected to a device outside the casing through the lead wire 1 to achieve wired electrical transmission of the detection signal.

[0045] In some embodiments of the sensor assembly, the casing 200 has a sensor mounting seat 201 , and the sleeve assembly 1 passes through the casing through the sensor mounting seat 201 .

[0046] In some embodiments of the sensor assembly, the sleeve assembly 1 has a connection flange 13 arranged around the outer circumference, and a connection hole is provided in the connection flange 13, through which the sleeve assembly 1 is fixedly connected to the mounting seat 201. Specifically, the fixed connection can be achieved by fasteners such as bolts.

[0047] In some embodiments of the sensor assembly, the sensor assembly is a rotation speed sensor, the casing 200 is an intermediate casing, a rotor unit 300 is disposed in the intermediate casing, and the sensor probe is disposed toward the rotor unit 300. By ensuring that the distance between the sensor probe and the measured object is within the measurement range, the rotation state of the measured object can be recorded, and the sensor outputs a rotation speed signal.

[0048] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A sensor assembly, mounted on a casing, characterized in that: include: A sleeve assembly is passed through the casing and has a first end located outside the casing and a second end located inside the casing in an installed state; a sensor probe, disposed at the second end; a sheath nut, for fixedly connecting the sensor probe to the second end; and A gasket is arranged between the second end portion and the sensor probe.

2. The sensor assembly according to claim 1, characterized in that The sensor probe has an external thread, and the second end has an external thread. In the installed state, the outer sleeve nut is threadedly connected to the sensor probe, the second end and the outer periphery of the gasket.

3. The sensor assembly according to claim 1, wherein: The number of gaskets arranged between the second end and the sensor probe is two or more.

4. The sensor assembly according to claim 3, characterized in that The two or more spacers have different thicknesses.

5. The sensor assembly according to claim 1, wherein: The thickness of the gasket disposed between the second end and the sensor probe is adjustable.

6. The sensor assembly according to claim 1, wherein: The thickness of the gasket is 5.79 mm to 6.79 mm.

7. The sensor assembly according to claim 1, wherein: A lead wire is arranged in the sleeve assembly, and the sensor probe is connected to a device outside the casing through the lead wire.

8. The sensor assembly according to claim 1, wherein: The casing is provided with a sensor mounting seat, and the sleeve assembly passes through the casing via the sensor mounting seat.

9. The sensor assembly according to claim 8, characterized in that The sleeve assembly has a connecting flange arranged around the outer circumference, a connecting hole is arranged in the connecting flange, and the sleeve assembly is fixedly connected to the mounting seat through the connecting hole.

10. The sensor assembly according to claim 8, characterized in that The sensor component is a rotation speed sensor, the casing is an intermediate casing, a rotor unit is arranged in the intermediate casing, and the sensor probe is arranged toward the rotor unit.

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