Fixing plate for starting motor of aero-engine

Abstract

The utility model discloses a fixing plate for a starting motor of an aero-engine. The aero-engine comprises a casing; the starting motor fixing plate comprises a C-shaped arc-shaped plate, magnetic electrode mounting frames are integrally connected to the two ends of the arc-shaped plate, and a starting motor mounting frame is integrally connected to the bent part of the arc-shaped plate; a connecting hole is formed in the arc-shaped plate, and the starting motor fixing plate is fixed to the end of the casing through a bolt and the connecting hole. Compared with a magnetic electrode mounting bracket and a starting motor mounting bracket which are integrally arranged on the cartridge receiver, the starting motor fixing plate has the following beneficial effects that 1, the universality of the cartridge receiver can be improved, and the cartridge receiver only needs to meet the requirements of mounting main components such as a crankshaft and an air cylinder; 2, by changing the mounting structure, different types of magnetic electrodes and starting motors can be mounted on the starting motor fixing frame, so that the suitability and interchangeability of the aero-engine can be improved; and 3, the manufacturing cost of the aero-engine can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aero-engine, especially to an aero-engine starting motor fixing plate. BACKGROUND

[0002] The piston aero-engine adopts the layout form of horizontal opposition, and common horizontal opposition aero-engines include opposed four-cylinder, opposed six-cylinder and opposed eight-cylinder. In addition to the main components such as the crankshaft, the casing and the cylinder, the piston aero-engine also needs to be equipped with auxiliary components such as the magneto stator and the starting motor, and these auxiliary components need to be fixed on the casing. Correspondingly, various mounting brackets for mounting the auxiliary components need to be arranged on the casing. The disadvantage of this method is that the casing is not universal, and when the model is changed or the auxiliary components of different models are replaced, a special casing needs to be designed and produced. Obviously, this will increase the manufacturing cost of the aero-engine. SUMMARY

[0003] In order to overcome the deficiencies in the background art, the utility model discloses an aero-engine starting motor fixing plate, and aims to improve the universality of the casing and reduce the manufacturing cost of the aero-engine.

[0004] Specifically, the utility model adopts the following technical scheme:

[0005] An aero-engine starting motor fixing plate, the aero-engine includes a casing, the starting motor fixing plate includes an arc-shaped plate in the shape of C, magnetic pole mounting brackets are integrally connected at both ends of the arc-shaped plate, and a starting motor mounting bracket is integrally connected at the curved part of the arc-shaped plate; connection holes are arranged on the arc-shaped plate, and the starting motor fixing plate is fixed at the end of the casing through bolts and the connection holes.

[0006] Further improvement of the technical scheme, the magnetic pole mounting bracket is in the shape of L, and two threaded mounting holes are arranged on the magnetic pole mounting bracket.

[0007] Further improvement of the technical scheme, a starting motor mounting hole is arranged on the starting motor mounting bracket, and four connection holes are uniformly arranged in the circumferential direction of the starting motor mounting hole.

[0008] Further improvement of the technical scheme, three connection holes are arranged on the arc-shaped plate, and the three connection holes are respectively located at both ends and the curved part of the arc-shaped plate.

[0009] Further improvement of the technical scheme, the two magnetic pole mounting brackets are symmetrically arranged with the center of the arc-shaped plate as the center.

[0010] After the above technical scheme is implemented, compared with the background art, the utility model has the beneficial effects that:

[0011] 1. It is beneficial to improve the versatility of the casing, and the casing only needs to meet the needs of installing the crankshaft, the cylinder and other main components;

[0012] 2. By changing the mounting structure, different types of magnetic electrodes and starting motors can be installed on the fixing frame, which is beneficial to improve the adaptability and interchangeability of the aero-engine;

[0013] 3. It is helpful to reduce the manufacturing cost of the aero-engine. BRIEF DESCRIPTION OF DRAWINGS

[0014] ATTACHED Figure 1 The structure of the aero-engine starting motor fixing plate is shown.

[0015] ATTACHED Figure 2 The mounting structure of the starting motor fixing plate on the casing is shown.

[0016] In the drawings:

[0017] 1. Starting motor fixing plate; 11, arc-shaped plate; 12, magnetic electrode mounting frame; 13, starting motor mounting frame; 14, connecting hole;

[0018] 2. Casing; 21, casing connecting threaded hole;

[0019] 3. Magnetic electrode;

[0020] 4. Starting motor. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. It should be noted that in the description of the present application, the terms "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. It should be noted that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or the connection between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0022] An aero-engine starting motor fixing plate is used for fixing and installing magnetic electrode and starting motor on a casing. In the embodiment, the aero-engine is a opposed four-cylinder engine.

[0023] Referring to the drawings Figure 1 , the drawings Figure 1 show a structural schematic diagram of the aero-engine starting motor fixing plate. From the drawings Figure 1 it can be seen that the starting motor fixing plate 1 comprises an arc-shaped plate 11 in C shape, magnetic electrode mounting brackets 12 are integrally connected at both ends of the arc-shaped plate 11, and a starting motor mounting bracket 13 is integrally connected at the curved portion of the arc-shaped plate 11.

[0024] Specifically, the starting motor fixing plate 1 is made of aluminum alloy material, which can reduce the weight of the aero-engine. Three connecting holes are arranged on the arc-shaped plate 11, and the three connecting holes are respectively located at both ends and the curved portion of the arc-shaped plate 11. The magnetic electrode mounting bracket 12 is in L shape, two threaded mounting holes are arranged on the magnetic electrode mounting bracket 12, and the two magnetic electrode mounting brackets 12 are symmetrically arranged with the center of the arc-shaped plate 11 as the center. In order to ensure the symmetry of the magnetic electrode, the arc-shaped plate opening is matched with the corresponding position of the casing in excess precision to ensure the concentricity. One starting motor mounting hole is arranged on the starting motor mounting bracket 13, and four connecting holes are uniformly arranged in the circumferential direction of the starting motor mounting hole.

[0025] Referring to the drawings Figure 2 , the drawings Figure 2 show a structural schematic diagram. From the drawings Figure 2 it can be seen that the end of the casing 2 has a protruding bearing mounting chamber and three casing connecting threaded holes 21, when installed, the arc-shaped plate 11 is clamped on the bearing mounting chamber, and the starting motor fixing plate 1 is fixed on the end of the casing through bolts. Two magnetic electrodes 3 are respectively installed on two magnetic electrode mounting brackets 12 through screws, at this time, the two magnetic electrodes 3 are symmetrically located on both sides of the bearing mounting chamber. The starting motor mounting hole is matched with the neck portion of the starting motor 4, and the starting motor 4 can be positioned. The starting motor 4 has four threaded holes, and the starting motor 4 can be fixed in the starting motor mounting hole through four screws.

[0026] Since the arc-shaped plate 11 is in C shape, when the aero-engine is maintained and repaired, the starting motor fixing plate 1 can be individually disassembled without disassembling the remaining parts, and the magnetic electrode 3 and the starting motor 4 can be maintained and replaced.

[0027] From the above, compared with integrally arranging the magnetic electrode mounting bracket and the starting motor mounting bracket on the casing, arranging the starting motor fixing plate 1 can achieve the following beneficial effects:

[0028] 1. It is beneficial to improve the versatility of the casing 2, and the casing 2 only needs to meet the needs of installing the crankshaft, the cylinder and other main parts;

[0029] 2. By changing the mounting structure, different types of magnetic poles and starting motors can be mounted on the starting motor fixing frame, which is conducive to improving the adaptability and interchangeability of the aero-engine.

[0030] 3. It is helpful to reduce the manufacturing cost of the aero-engine.

[0031] The parts not described in detail are prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An aircraft engine starter motor mounting plate, said aircraft engine including a case, characterized by: The starting motor fixing plate comprises an arc-shaped plate in the shape of C, two magnetic electrode mounting racks integrally connected at two ends of the arc-shaped plate, and a starting motor mounting rack integrally connected at a bending part of the arc-shaped plate; a connecting hole is arranged on the arc-shaped plate, and the starting motor fixing plate is fixed at the end of the machine case through bolts and the connecting hole.

2. An aircraft engine starter motor mounting plate as recited in claim 1, characterized by: The magnetic electrode mounting rack is in the shape of L, and two threaded mounting holes are arranged on the magnetic electrode mounting rack.

3. An aircraft engine starter motor mounting plate as recited in claim 1, characterized by: A starting motor mounting hole is arranged on the starting motor mounting rack, and four connecting holes are uniformly arranged in the circumferential direction of the starting motor mounting hole.

4. An aircraft engine starter motor mounting plate as recited in claim 1, characterized by: Three connecting holes are arranged on the arc-shaped plate, and the three connecting holes are respectively located at the two ends and the bending part of the arc-shaped plate.

5. An aircraft engine starter motor mounting plate as recited in claim 1 wherein: The two magnetic electrode mounting racks are symmetrically arranged with the center of the arc-shaped plate as the center.

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