Radial sealing device of gas turbine starter

Abstract

The invention provides a radial sealing device of a gas turbine starter, and the radial sealing device comprises a sealing seat, a sealing ring and a sealing ring, the inner sealing assembly is fixedly mounted on the side surface of the sealing seat; the outer sealing assembly is fixedly mounted on the side surface of the sealing seat; and the limiting assembly is mounted in the limiting groove. Connection sealing performance among the sealing seat, the front cover and the gas turbine starter is achieved through the arranged inner sealing assembly, the leakage condition is avoided, the arranged outer sealing assembly is correspondingly arranged on the outer side of the front cover and the outer side of a port of the gas turbine starter, double-layer sealing is achieved through the cooperation of the outer sealing assembly and the inner sealing assembly, and the sealing performance of the gas turbine starter is improved. The radial sealing effect of the gas turbine starter is improved, the sealing performance of the front cover, the sealing seat and the gas turbine starter is guaranteed, and stable use of the gas turbine starter is guaranteed.

Description

Technical Field

[0001] The invention relates to a radial sealing device, in particular to a radial sealing device for a gas turbine starter. Background Art

[0002] Gas turbine starter, also known as gas turbine starter, is a type of thermal engine. Gas turbine engine is the most widely used aircraft engine at present and has been the main form of aviation power since the 1950s. Gas turbine starter has the characteristics of high efficiency, reliability and safety, and has broad application prospects in aviation, power generation, mechanical drive and other fields.

[0003] The existing gas turbine starter body and the end cover are mostly connected and fixed by screws. During the operation and use of the gas turbine starter, the seal at the connection of the gas turbine starter is prone to loosening, resulting in internal oil leakage, which affects the use of the gas turbine starter. Summary of the invention

[0004] The present invention provides a radial sealing device for a gas turbine starter in order to solve the technical problem that, during the operation of the gas turbine starter, the seal at the connection of the gas turbine starter is easily loosened, resulting in internal oil leakage and affecting the use of the gas turbine starter.

[0005] The present invention solves the above technical problems through the following technical solutions: The present invention provides a radial sealing device for a gas turbine starter, the radial sealing device for the gas turbine starter comprising: A sealing seat, wherein a limiting groove is provided on the surface of the sealing seat; An inner sealing component, wherein the inner sealing component is fixedly mounted on a side surface of the sealing seat; An outer sealing component, the outer sealing component is fixedly mounted on a side surface of the sealing seat; A limiting component is installed in the limiting groove.

[0006] Furthermore, the inner sealing assembly includes an inner cylinder, a first slot, a first clamping block and an inner sealing gasket. The inner cylinder is fixedly installed on the side surface of the sealing seat, a first clamping opening is opened on the outer surface of the inner cylinder, an inner sealing gasket is sleeved on the outer surface of the inner cylinder, and the first clamping block fixed on the inner wall of the inner sealing gasket is clamped and connected with the first slot.

[0007] Furthermore, the number of the first clamping grooves is a plurality, and the plurality of the first clamping grooves are annularly arranged on the outer surface of the inner tube.

[0008] Furthermore, the outer sealing assembly includes an outer cylinder, a second slot, a second clamping block and an outer sealing gasket. The outer cylinder is fixedly installed on the side surface of the sealing seat. The inner wall of the outer cylinder is provided with a second slot. The inner wall of the outer cylinder is sleeved with an outer sealing gasket. The second clamping block fixedly connected to the outer surface of the outer sealing gasket is clamped and connected with the second slot.

[0009] Furthermore, the number of the second card grooves is several, and the several second card grooves are evenly distributed in a ring shape on the inner wall of the outer cylinder.

[0010] Furthermore, the limiting assembly includes a limiting column, a limiting spring and a sealing ring, the end of the limiting spring is fixedly connected to the inner wall of the limiting groove, the end of the limiting spring is fixedly connected to the limiting column, and the end of the limiting column is fixedly connected to the sealing ring.

[0011] Furthermore, the sealing ring is sleeved on the outer surface of the inner cylinder, the outer surface of the sealing ring is in contact with the inner wall of the outer cylinder, and a plurality of limiting columns are fixedly installed on the side surface of the sealing ring.

[0012] Furthermore, the side surface of the sealing ring fits with the inner sealing gasket and the outer sealing gasket, and a plurality of limiting columns are distributed in an annular shape on the side surface of the sealing ring.

[0013] Furthermore, a front cover is arranged on the left side of the sealing seat, a gas turbine starter is arranged on the right side of the sealing seat, fixing bolts are installed on the surface of the front cover, and the ends of the fixing bolts pass through the front cover, the sealing seat and the gas turbine starter and are threadedly connected in sequence.

[0014] Furthermore, the first connecting tube fixedly installed on the front cover surface is arranged between the outer sealing gasket and the inner sealing gasket on one side of the sealing seat, and the second connecting tube fixedly connected to the gas turbine starter side surface is arranged between the outer sealing gasket and the inner sealing gasket arranged on the other side of the sealing seat.

[0015] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present invention.

[0016] The positive and progressive effects of the present invention are: The radial sealing device of the gas turbine starter proposed above places the sealing seat between the front cover and the gas turbine starter, and locks and fixes them by bolts. The inner sealing component is set to achieve the sealing of the connection between the sealing seat, the front cover and the gas turbine starter to avoid leakage. The outer sealing component is set, and the outer sealing component is correspondingly arranged on the outside of the front cover and the gas turbine starter port, and cooperates with the inner sealing component to achieve double-layer sealing, thereby improving the radial sealing effect of the gas turbine starter, ensuring the sealing of the front cover, the sealing seat and the gas turbine starter, and ensuring the stable use of the gas turbine starter. The limit assembly is set to achieve compensatory sealing between the inner sealing component and the outer sealing component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the radial sealing device of the present invention.

[0019] Figure 2 It is a schematic diagram of the installation structure of the radial sealing device of the present invention.

[0020] Figure 3 It is a schematic diagram of the front installation cross-sectional structure of the radial sealing device of the present invention.

[0021] Description of Reference Numerals 1. Sealing seat; 11. Limiting groove; 2. Inner sealing assembly; 21. Inner tube; 22. First clamping groove; 23. First clamping block; 24. Inner sealing gasket; 3. Limiting column; 4. Sealing ring; 5. Limiting spring; 6. Outer sealing assembly; 61. Outer tube; 62. Second clamping groove; 63. Second clamping block; 64. Outer sealing gasket; 7. Gas turbine starter; 71. First connecting tube; 8. Front cover; 81. Second connecting tube; 9. Fixing bolt. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0025] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0026] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0028] like Figure 1-3 As shown, the radial sealing device of the gas turbine starter comprises: A sealing seat 1, wherein a limiting groove 11 is provided on the surface of the sealing seat 1; An inner sealing component 2, wherein the inner sealing component 2 is fixedly mounted on a side surface of the sealing seat 1; An outer sealing component 6, wherein the outer sealing component 6 is fixedly mounted on a side surface of the sealing seat 1; A limiting component is installed in the limiting groove 11.

[0029] The sealing seat 1 is placed between the front cover 8 and the gas turbine starter 7 and locked and fixed by bolts. The inner sealing component 2 is provided to achieve the connection sealing between the sealing seat 1, the front cover 8 and the gas turbine starter 7 to avoid leakage. The outer sealing component 6 is provided, and the outer sealing component 6 is correspondingly provided on the outside of the front cover 8 and the gas turbine starter 7 port, and cooperates with the inner sealing component 2 to achieve double-layer sealing, thereby improving the radial sealing effect of the gas turbine starter 7, ensuring the sealing of the front cover 8, the sealing seat 1 and the gas turbine starter 7, and ensuring the stable use of the gas turbine starter 7. The compensation seal between the inner sealing component 2 and the outer sealing component 6 is achieved by the provided limit component.

[0030] The inner sealing assembly 2 includes an inner cylinder 21, a first slot 22, a first block 23 and an inner sealing gasket 24. The inner cylinder 21 is fixedly mounted on the side surface of the sealing seat 1. A first slot is provided on the outer surface of the inner cylinder 21. The inner sealing gasket 24 is sleeved on the outer surface of the inner cylinder 21. The first block 23 fixed on the inner wall of the inner sealing gasket 24 is engaged with the first slot 22.

[0031] There are a plurality of first clamping grooves 22 , and the plurality of first clamping grooves 22 are annularly disposed on the outer surface of the inner tube 21 .

[0032] An inner sealing gasket 24 is sleeved on the outer side of the inner tube 21, and the inner sealing gasket 24 fits with the inner wall of the first connecting tube 71 of the front cover 8 to achieve sealing at the connection. At the same time, a first clamping block 23 fixedly connected to the inner wall of the inner sealing gasket 24 engages with a first clamping groove 22 provided on the outer surface of the inner tube 21 to achieve clamping and limiting of the inner sealing gasket 24, thereby ensuring that the inner sealing gasket 24 is stably placed and used.

[0033] The outer sealing assembly 6 includes an outer cylinder 61, a second slot 62, a second block 63 and an outer sealing gasket 64. The outer cylinder 61 is fixedly mounted on the side surface of the sealing seat 1. The inner wall of the outer cylinder 61 is provided with a second slot 62. The inner wall of the outer cylinder 61 is sleeved with an outer sealing gasket 64. The second block 63 fixedly connected to the outer surface of the outer sealing gasket 64 is engaged with the second slot 62.

[0034] There are a plurality of second clamping grooves 62 , which are evenly distributed in a circular shape on the inner wall of the outer tube 61 .

[0035] The second clamping block 63 fixedly connected to the inner wall of the outer sealing gasket 64 is engaged with the second clamping groove 62 opened on the outer side of the outer tube 61, which is convenient for the sleeve placement of the outer sealing gasket 64 and convenient for use. The limiting assembly includes a limiting column 3, a limiting spring 5 and a sealing ring 4. The end of the limiting spring 5 is fixedly connected to the inner wall of the limiting groove 11, the end of the limiting spring 5 is fixedly connected to the limiting column 3, and the end of the limiting column 3 is fixedly connected to the sealing ring 4.

[0036] The sealing ring 4 is sleeved on the outer surface of the inner cylinder 21 , the outer surface of the sealing ring 4 is in contact with the inner wall of the outer cylinder 61 , and a plurality of limiting columns 3 are fixedly mounted on the side surface of the sealing ring 4 .

[0037] The side surface of the sealing ring 4 is in contact with the inner sealing gasket 24 and the outer sealing gasket 64 , and a plurality of limiting columns 3 are distributed in an annular manner on the side surface of the sealing ring 4 .

[0038] A front cover 8 is arranged on the left side of the sealing seat 1, and a gas turbine starter 7 is arranged on the right side of the sealing seat 1. Fixing bolts 9 are installed on the surface of the front cover 8, and the ends of the fixing bolts 9 pass through the front cover 8, the sealing seat 1 and the gas turbine starter 7 in sequence and are threadedly connected.

[0039] The side surface of the sealing ring 4 fits with the inner sealing gasket 24 and the outer sealing gasket 64, so as to facilitate the stable fitting of the inner sealing gasket 24 and the outer sealing gasket 64 and meet the sealing effect set by the inner sealing gasket 24 and the outer sealing gasket 64.

[0040] It is convenient to fix the front cover 8 and the gas turbine starter 7 by means of fixing bolts 9, which is convenient for installation and ensures the fixed setting of the inner sealing component 2 and the outer sealing component 6.

[0041] The first connecting tube 71 fixedly installed on the surface of the front cover 8 is arranged between the outer sealing gasket 64 and the inner sealing gasket 24 on one side of the sealing seat 1, and the second connecting tube 81 fixedly connected to the side surface of the gas turbine starter 7 is arranged between the outer sealing gasket 64 and the inner sealing gasket 24 arranged on the other side of the sealing seat 1.

[0042] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art, and needless to say, the content protected by this application does not involve improvements to software and methods.

[0043] The present invention is not limited to the above-mentioned embodiments. Any changes in shape or structure are within the protection scope of the present invention. The protection scope of the present invention is defined by the attached claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are within the protection scope of the present invention.

Claims

1. A radial sealing device for a gas turbine starter, characterized in that: The radial sealing device of the gas turbine starter comprises: A sealing seat (1), wherein a limiting groove (11) is provided on a surface of the sealing seat (1); An inner sealing component (2), the inner sealing component (2) being fixedly mounted on a side surface of the sealing seat (1); An outer sealing component (6), the outer sealing component (6) being fixedly mounted on a side surface of the sealing seat (1); A limit assembly, wherein the limit assembly is installed in the limit groove (11).

2. The radial sealing device for a gas turbine starter according to claim 1, characterized in that: The inner sealing assembly (2) comprises an inner cylinder (21), a first clamping groove (22), a first clamping block (23) and an inner sealing gasket (24); the inner cylinder (21) is fixedly mounted on a side surface of the sealing seat (1); a first clamping opening is provided on an outer surface of the inner cylinder (21); an inner sealing gasket (24) is sleeved on the outer surface of the inner cylinder (21); and the first clamping block (23) fixed on the inner wall of the inner sealing gasket (24) is clamped and connected with the first clamping groove (22).

3. The radial sealing device for a gas turbine starter according to claim 2, characterized in that: The number of the first clamping grooves (22) is a plurality, and the plurality of first clamping grooves (22) are annularly arranged on the outer surface of the inner cylinder (21).

4. The radial sealing device for a gas turbine starter according to claim 1, characterized in that: The outer sealing assembly (6) comprises an outer cylinder (61), a second clamping groove (62), a second clamping block (63) and an outer sealing gasket (64); the outer cylinder (61) is fixedly mounted on a side surface of the sealing seat (1); the inner wall of the outer cylinder (61) is provided with a second clamping groove (62); the inner wall of the outer cylinder (61) is sleeved with an outer sealing gasket (64); and the second clamping block (63) fixedly connected to the outer surface of the outer sealing gasket (64) is clamped and connected with the second clamping groove (62).

5. The radial sealing device for a gas turbine starter according to claim 4, characterized in that: The number of the second clamping grooves (62) is a plurality, and the plurality of second clamping grooves (62) are evenly distributed in an annular shape on the inner wall of the outer cylinder (61).

6. The radial sealing device for a gas turbine starter according to claim 1, characterized in that: The limiting assembly comprises a limiting column (3), a limiting spring (5) and a sealing ring (4); the end of the limiting spring (5) is fixedly connected to the inner wall of the limiting groove (11); the end of the limiting spring (5) is fixedly connected to the limiting column (3); and the end of the limiting column (3) is fixedly connected to the sealing ring (4).

7. The radial sealing device for a gas turbine starter according to claim 6, characterized in that: The sealing ring (4) is sleeved on the outer surface of the inner cylinder (21), the outer surface of the sealing ring (4) is in contact with the inner wall of the outer cylinder (61), and a plurality of limiting columns (3) are fixedly mounted on the side surface of the sealing ring (4).

8. The radial sealing device for a gas turbine starter according to claim 6, characterized in that: The side surface of the sealing ring (4) fits the inner sealing pad (24) and the outer sealing pad (64), and a plurality of limiting columns (3) are distributed in an annular manner on the side surface of the sealing ring (4).

9. The radial sealing device for a gas turbine starter according to claim 1, characterized in that: A front cover (8) is arranged on the left side of the sealing seat (1), and a gas turbine starter (7) is arranged on the right side of the sealing seat (1). A fixing bolt (9) is installed on the surface of the front cover (8), and the ends of the fixing bolts (9) pass through the front cover (8), the sealing seat (1) and the gas turbine starter (7) in sequence for threaded connection.

10. The radial sealing device for a gas turbine starter according to claim 9, characterized in that: The first connecting tube (71) fixedly mounted on the surface of the front cover (8) is arranged between an outer sealing gasket (64) and an inner sealing gasket (24) on one side of the sealing seat (1), and the second connecting tube (81) fixedly connected to the surface of the gas turbine starter (7) is arranged between an outer sealing gasket (64) and an inner sealing gasket (24) arranged on the other side of the sealing seat (1).

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