CN214125019U - Kitchen oven motor for airplane - Google Patents

Abstract

The utility model relates to the technical field of aircraft oven motors, in particular to an aircraft kitchen oven motor, which has strong universality and good heat dissipation effect, particularly solves the problem that the heat of an oven is transferred to a rear ball bearing and a rotor assembly, has convenient production assembly and disassembly, can give axial pre-pressure to the rotor assembly by a waveform gasket, can play a role in buffering in the axial direction when the rotor assembly is started or operated, and can not move axially after the pre-pressure is given to the rotor assembly, thereby effectively reducing the noise; the inside cavity that is provided with of casing, the casing left end intercommunication is provided with the multiunit air inlet, stator module cartridge sets up inside the casing, the inside left end of casing is provided with back ball bearing, the rotatable cartridge in rotor subassembly left part sets up in back ball bearing to the rotatable setting in the stator module in the rotor subassembly right part is inside, the radiating wind blade ring cover sets up in the rotor subassembly left part circumference outside, the wave form gasket left end is connected with the rotor subassembly right-hand member, the end cover left end is connected with the casing right-hand member.

Description

Kitchen oven motor for airplane

Technical Field

The utility model relates to a technical field of aircraft oven motor especially relates to an aircraft is with kitchen oven motor.

Background

The kitchen and facilities thereof are part of airplane living equipment, domestic C919/C929 and military large airplane projects are greatly promoted, companies are designed and developed for matching to meet the requirements of the cabin equipment center oven kitchen on an oven motor, the motor drives a circulating fan to continuously operate, stable wind speed is generated, heat is used for circulating in an inner container, and frozen food is rapidly heated to the required temperature. According to aviation use requirements, the motor is required to have high reliability, light weight, low noise and high rotating speed. Meanwhile, according to the characteristics of the oven, a special structural design is adopted for solving the problem that the shaft end is conducted to the shaft extension bearing in the high-temperature oven to influence the service life and generate noise.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem, the utility model provides a commonality is strong, and the radiating effect is good, has solved oven heat conduction back ball bearing and rotor subassembly very much, and its structure is to production assembly and dismantlement convenience simultaneously, and the wave form gasket can be given rotor subassembly axial precompression, and the axial can play the cushioning effect and for rotor subassembly precompression back rotor subassembly not axial float when the rotor subassembly starts or operates to effectively reduce the aircraft kitchen oven motor of noise.

The utility model discloses an aircraft kitchen oven motor, the inside cavity that is provided with of casing, casing left end intercommunication is provided with the multiunit air inlet, the stator module cartridge sets up inside the casing, the inside left end of casing is provided with back ball bearing, the rotatable cartridge setting of rotor subassembly left part is in back ball bearing, and the rotatable setting of rotor subassembly right part is inside stator module, the radiating air blade ring cover sets up in the rotor subassembly left part circumference outside, the wave form gasket left end is connected with the rotor subassembly right-hand member, the end cover left end is connected with the casing right-hand member, and the end cover passes through multiunit screw spiral shell device to be fixed at the casing right-hand member.

Compared with the prior art, the beneficial effects of the utility model are that: the method is characterized in that a fine machining allowance is reserved at the matching position of the inner part of a machine shell and an iron core of a stator assembly, a machine shell bearing chamber and a spigot position of a machine shell cover, the coaxiality is ensured by one-time machining, meanwhile, the iron core matching position is machined according to different iron cores, a plane radial eddy current type aluminum alloy blade is designed and assembled on a shaft of a shaft extension end, air ports are reserved on the machine shell and the end cover, when a motor works at a high speed, cold air is forced to enter the motor from the tail end of the motor and then is radially discharged from the shaft extension end face, the heat of a motor winding and the ball bearing behind the shaft extension end is forcibly dissipated by cold air convection, meanwhile, when the heat of a motor shaft extending into an oven end is conducted to a heat dissipation blade through the shaft, the surface area of the heat dissipation blade is large, the heat dissipation blade runs at a high speed, the heat dissipation blade also plays a role of a radiator, the heat is further prevented from being conducted to the rotor assembly, the left part of the rotor assembly is tightly matched with a rear ball bearing, a wave-shaped gasket is added at the tail end to provide a pre-tightening force for the axial direction of the rotor assembly, the structure has the advantages that the motor is strong in universality and good in heat dissipation effect, the problem that the heat of an oven is conducted to the rear ball bearing and the rotor assembly is solved, the structure is convenient to produce, assemble and disassemble, the waveform gasket can provide axial pre-pressure for the rotor assembly, the axial direction can play a buffering role when the rotor assembly is started or operates, and the rotor assembly does not axially float after the pre-pressure is provided for the rotor assembly, so that the noise is effectively reduced.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

in the drawings, the reference numbers: 1. a heat dissipation fan blade; 2. a housing; 3. a stator assembly; 4. a rotor assembly; 5. a wave-shaped gasket; 6. an end cap; 7. a screw; 8. and a rear ball bearing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1, the utility model discloses an aircraft kitchen oven motor, casing 2 is provided with the cavity inside, casing 2 left end intercommunication is provided with the multiunit air inlet, stator module 3 cartridge sets up inside casing 2, casing 2 is provided with back ball bearing 8 at the inside left end, rotor module 4 left part rotatable cartridge sets up in back ball bearing 8, and rotor module 4 right part rotatable sets up inside stator module 3, cooling fan blade 1 ring cover sets up outside rotor module 4 left part circumference, wave form gasket 5 left end is connected with rotor module 4 right-hand member, end cover 6 left end is connected with casing 2 right-hand member, and end cover 6 is fixed at casing 2 right-hand member through multiunit screw 7 spiro union; the inner part of a machine shell 2 is matched with an iron core of a stator component 3, a bearing chamber of the machine shell 2 and a spigot position of a cover of the machine shell 2 are reserved with finish machining allowance, one-time machining is carried out to ensure coaxiality, meanwhile, the iron core matching position is processed according to different iron cores, a plane radial eddy current type aluminum alloy fan blade is designed and assembled on a shaft of a shaft extension end, air ports are reserved on the machine shell 2 and the end cover 6, when the motor works at high speed, cold air is forced to enter the motor from the tail end of the motor and is radially discharged through the shaft extension end face, the heat of a motor winding and the rear ball bearing 8 of the shaft extension end is forced to be radiated through cold air convection, meanwhile, when the heat of the motor shaft extending into an oven end is conducted to the heat radiation fan blade 1 through the shaft, the surface area of the heat radiation fan blade 1 is large and runs at high speed, the heat radiation fan blade 1 also plays the role of a radiator, the radiator rotor component further prevents heat from being conducted to the rotor component 4, and the left part of the rear ball bearing 8 is tightly matched with the rear ball bearing 8, the tail end adds wave form gasket 5 and gives 4 axial pretightning forces of rotor subassembly, and this structure motor commonality is strong, and the radiating effect is good, has solved oven heat conduction very much and has gone to back ball bearing 8 and rotor subassembly 4, and its structure is convenient to production assembly and dismantlement simultaneously, and wave form gasket 5 can give 4 axial precompression of rotor subassembly, and the axial can play the cushioning effect and give 4 precompression of rotor subassembly back rotor subassembly 4 not axial drunkenness when rotor subassembly 4 starts or operates to effectively reduce the noise.

The utility model discloses an aircraft kitchen oven motor, when it works, the inside of the casing and the iron core matching position of the stator module, the casing bearing chamber, the spigot position of the end casing cover are left with finish machining allowance, one-time processing ensures the coaxiality, simultaneously the iron core matching position is processed according to different iron cores, a plane radial eddy current type aluminum alloy blade is designed and assembled on the shaft extending end shaft, the casing and the end cover are left with air ports, when the motor works at high speed, cold air is forced to enter the motor from the tail end of the motor and is radially discharged through the shaft extending end face, the heat is forced to be dissipated to the motor winding and the ball bearing behind the shaft extending end through the cold air convection, simultaneously when the heat of the motor shaft extending into the oven end is conducted to the heat dissipating blade through the shaft, the heat dissipating blade has large surface area and runs at high speed, the heat dissipating blade rotor assembly also plays the role of a radiator, further 'prevents' the heat from being conducted to the rotor assembly, the left part is tightly matched with the back ball bearing rotor assembly, the wave-shaped gasket is added at the tail end to provide a pre-tightening force to the axial direction of the rotor assembly.

The utility model discloses an aircraft kitchen oven motor, its mounting means, connected mode or set up the mode and be common mechanical system, as long as can reach all can implement of its beneficial effect.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (1)

1. The utility model provides an aircraft is with kitchen oven motor, a serial communication port, casing (2) inside is provided with the cavity, casing (2) left end intercommunication is provided with the multiunit air inlet, stator module (3) cartridge sets up inside casing (2), the inside left end of casing (2) is provided with back ball bearing (8), the rotatable cartridge setting of rotor subassembly (4) left part is in back ball bearing (8), and the rotatable setting of rotor subassembly (4) right part is inside stator module (3), heat dissipation fan blade (1) snare sets up in rotor subassembly (4) left part circumference outside, wave form gasket (5) left end is connected with rotor subassembly (4) right-hand member, end cover (6) left end is connected with casing (2) right-hand member, and end cover (6) are fixed at casing (2) right-hand member through multiunit screw (7) spiral shell device.

Images