Supporting base of aero-engine integral transmission generator

Abstract

The utility model discloses a supporting base of an aero-engine integral transmission generator, which is formed by butting two half supporting bases through a locking mechanism. The upper surface and the lower surface of the supporting base are respectively provided with two bayonets with different sizes so as to be suitable for accommodating flanges and generator bodies of integral transmission generators with different sizes and models. The fixing device is formed by butt joint of the two half supporting seats through the locking mechanism, the structure is simple, the fixing device can be used for fixing the integral transmission generator when the integral transmission generator is maintained, the integral transmission generator does not need to be hoisted, two bayonets with different sizes are used, and the fixing device is convenient to use. And each bayonet can be suitable for fixing aero-engine integral transmission generators of various models, operation is convenient, positioning is accurate, safety and high efficiency are achieved, and the clamp is suitable for wide application and popularization.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of aero-engine maintenance technology, and particularly relates to a supporting base of an aero-engine integral transmission generator. BACKGROUND

[0002] The type of the aero-engine integral transmission generator differs due to different engine models, the integral transmission generator is directly driven by the transmission device of the aero-engine to rotate the generator rotor, thereby generating electric energy to provide stable electric power for the electric system of the airplane, and is a key component of the airplane. After long-time and multiple-cycle use of the integral transmission generator, it needs to be disassembled, inspected, maintained and replaced with parts that do not meet the requirements, so as to ensure that the integral transmission generator can work normally and safely.

[0003] At present, the existing inspection and repair auxiliary tooling of the integral transmission engine is a fixed hoist or a movable manual hydraulic hoist and a transportation tooling trolley provided with a flange clamp. For the integral transmission generators of different models from LEAP, V2500, CFM56-5, CFM56-7, PW1100G and the like, different flange clamp toolings need to be provided. When hoisting the integral transmission generator onto the tooling trolley, it is difficult to determine the center of gravity of the generator, thereby causing hoisting difficulty. SUMMARY

[0004] The utility model aims at providing a supporting base of an aero-engine integral transmission generator, which is simple in structure, low in cost, convenient to operate, accurate in positioning, high in efficiency, safe and applicable to various models of aero-engine integral transmission generators.

[0005] The utility model realizes the purpose by the following technical measures: a supporting base of an aero-engine integral transmission generator, characterized in that it is formed by two half supporting bases through a locking mechanism, and two kinds of different sizes of sockets are arranged on the upper surface and the lower surface of the supporting base to accommodate the flanges and the generator bodies of integral transmission generators of different models and different sizes.

[0006] The utility model is formed by two half supporting bases through a locking mechanism, is simple in structure, and can be used to fix the integral transmission generator without hoisting the integral transmission generator when the integral transmission generator is maintained. The utility model uses two kinds of different sizes of sockets, each of which is applicable to the fixation of various models of aero-engine integral transmission generators, is convenient to operate, accurate in positioning, safe and efficient, and is suitable for wide promotion and use.

[0007] The locking mechanism adopts a pair of through holes, a pair of nuts and a pair of long screw rods, the pair of through holes are located on the butt joint surface of one of the half support seats and are arranged on the two sides of the bayonet and penetrate the half support seat, the pair of nuts are embedded on the butt joint surface of the other half support seat and correspond to the through holes, and the pair of long screw rods penetrate the two through holes respectively and are screwed in the corresponding nuts to lock the two half support seats.

[0008] The utility model discloses a weight reduction groove is equipped on the upper surface, lower surface and side surface of each half support seat.

[0009] The utility model discloses the bayonet of opening on the support base upper surface is first, the bayonet of opening on the support base lower surface is second, is equipped with the recessed cavity for containing generator body in the first bayonet and second bayonet inner bottom, and is equipped with the hole channel for the transmission shaft end of integral transmission generator to stretch out in recessed cavity bottom center, the hole channel links first bayonet and second bayonet, and is equipped with two annular steps for supporting the flange in the periphery of recessed cavity, the avoiding slot for avoiding positioning pin is left between the two annular steps, and is equipped with the flange groove for containing the flange edge between the annular step of outer ring and the mouth of bayonet.

[0010] The utility model discloses the drainage hole for discharging the sewage of washing generator outer surface is equipped on the weight reduction groove groove wall of each half support seat upper surface and lower surface.

[0011] Compared with the prior art, the utility model has following outstanding effects:

[0012] (1) the utility model is formed by the butt joint of two half support seats through locking mechanism, and the structure is simple, when maintaining integral transmission generator, first overturn integral transmission generator, select the working surface of support base according to the model of integral transmission generator to be overhauled, fix using long screw rod, can complete integral transmission generator fixed on support base without hoisting, the utility model is accurate in positioning, high in efficiency, safe, makes operator not to be troubled by the need to determine engine gravity center, and can simply, conveniently place various models of generator to support base, therefore, the utility model is suitable for widely promoting and using.

[0013] (2) the utility model realizes the support fixing of integral transmission generators of multiple models such as LEAP, V2500, CFM56-5, CFM56-7, PW1100G through the bayonet of different sizes of two surfaces of support base.

[0014] (3) After the integrated transmission generator is clamped, the present invention has a clearance groove for avoiding the positioning pin, and uses a flange groove to fasten the flange to prevent the two from separating. The flange groove and the generator flange have a small gap, which allows the generator to rotate freely relative to the support base, greatly facilitating the cleaning, painting, inspection and maintenance of the integrated transmission generator.

[0015] (4) This utility model can be placed on a forklift for use, which facilitates transportation and improves efficiency. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of a certain type of integral drive generator;

[0018] Figure 2 This is a three-dimensional structural diagram of the semi-support base of this utility model;

[0019] Figure 3 yes Figure 1 Front perspective view of the middle half of the support base;

[0020] Figure 4 yes Figure 1 Side perspective view of the middle half of the support base;

[0021] Figure 5 This is one of the schematic diagrams showing the use of this utility model;

[0022] Figure 6 This is the second schematic diagram of the use of this utility model;

[0023] Figure 7 This is the third schematic diagram of the use of this utility model.

[0024] In the figure: 1-support base, 2-semi-support base, 3-integral transmission generator, 4-through hole, 5-first bayonet, 6-second bayonet, 7-channel, 8-annular step, 9-weight reduction groove, 10-cavity, 11-drain hole, 12-positioning pin, 13-drive shaft end, 14-generator body, 15-flange, 16-avoidance groove, 17-flange groove. Detailed Implementation

[0025] like Figure 1 The integrated drive generator shown includes a generator body 14, and a locating pin 12 is provided on the flange 15 of the drive shaft end 13 of the integrated drive generator.

[0026] like Figures 2-7As shown, the utility model relates to an aero-engine integral transmission generator support base 1, in the embodiment, the support base 1 is square plate, it is formed by the butt joint of two half support bases 2 through locking mechanism, and two different sizes of bayonets are respectively arranged on the upper surface middle part and the lower surface middle part of the support base 1 to adapt to the flange 15 and generator body 14 of each size different model integral transmission generator 3, so as to fix the integral transmission generator 3.

[0027] The bayonet arranged on the upper surface of the support base 1 is a first bayonet 5, the bayonet arranged on the lower surface of the support base 1 is a second bayonet 6, the recessed cavity 10 for accommodating the generator body 14 is arranged in the bottom of the first bayonet 5 and the second bayonet 6, the hole channel 7 for the transmission shaft end 13 of the integral transmission generator to extend is arranged in the bottom surface center of the recessed cavity 10, the hole channel 7 is communicated with the first bayonet 5 and the second bayonet 6, the two annular steps 8 for supporting the flange 14 are arranged on the periphery of the recessed cavity 10, the avoiding slot 16 for avoiding the positioning pin 12 is arranged between the two annular steps 8, and the flange groove 17 for accommodating the edge of the flange 14 is arranged between the annular step of the outer ring and the mouth edge of the bayonet.

[0028] In the embodiment, the locking mechanism adopts a pair of through holes 4, a pair of nuts and a pair of long screw rods, the pair of through holes 4 are arranged on the butt joint surface of one of the half support bases 2 and are arranged on the two sides of the bayonet and penetrate the half support base, the pair of nuts are embedded on the butt joint surface of the other half support base 2 and correspond to the through holes 4, and the pair of long screw rods penetrate the two through holes 4 respectively and are screwed in the corresponding nuts to lock the two half support bases 2.

[0029] The weight-reducing groove 9 is arranged on the upper surface, the lower surface and the side surface of each half support base 2 to reduce the weight of the support base and facilitate operation. The drainage hole 11 for draining the sewage for cleaning the outer surface of the generator is arranged on the groove wall of the weight-reducing groove 9 of the upper surface and the lower surface of each half support base 2, that is, the weight-reducing groove 9 of the upper surface and the lower surface is also used for containing the sewage.

[0030] The two semi-supports of this utility model are two symmetrical plates. Except for a through hole on one semi-support and a nut on the other, their structures are identical. The first and second bayonets are different in size; this dimensional limitation is existing technology and will not be elaborated upon here. In this technical field, even generators with the same diameter bayonet can have several models. The difference in models is based on the different positions of the generator's locating pins. The support design of this utility model avoids the locating pins of all generator models, and there is a small gap between the flange groove and the flange, as well as a small gap between the inner wall of the cavity and the generator body. Therefore, the generator can rotate relative to this support base. Thus, the two bayonets of this utility model with different diameters can be used for supporting and fixing multiple models of integrated drive generators, such as LEAP, V2500, CFM56-5, CFM56-7, and PW1100G.

[0031] The generator models applicable to this utility model are: 1718201, 1718205, 1721152, 761574 / A / B, 1725616, S281A001-101, S281A001-103, 740119 / A / B / C / D / E / F / G / H, 766219, 767142B / C / D, 1709121, 772181 / A, 1706903 and 1708897.

[0032] The usage process of this utility model is as follows: First, select the working surface of the support base according to the model of the integrated drive generator. Then, tilt the flange face of the drive shaft end 13 of the integrated drive generator upwards. Next, snap the two halves of the support base onto the flange face of the integrated drive generator. Then, pass two long screw rods through the support base and lock them in place. Finally, flip the integrated drive generator and support base over so that the support base is laid flat, and the integrated drive generator is inverted and fixed on the support base. Figures 5-7 As shown.

[0033] The embodiments of this utility model are not limited to this. Based on the above content of this utility model, and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, the locking mechanism of this utility model may have other embodiments. Therefore, this utility model can also be modified, replaced or changed in various other forms, all of which fall within the scope of protection of this utility model.

Claims

1. A support base for an integrated transmission generator for an aircraft engine, characterized in that: It consists of two semi-support bases connected by a locking mechanism. Two different sizes of bayonets are provided on the upper and lower surfaces of the support bases to accommodate flanges and generator bodies of different sizes and models of integrated drive generators.

2. The support base for the integrated transmission generator of an aero-engine according to claim 1, characterized in that: The first bayonet is formed on the upper surface of the support base, and the second bayonet is formed on the lower surface of the support base. A cavity for accommodating the generator body is provided at the bottom of the first and second bayonet, and a channel for the transmission shaft end of the generator to extend out is provided at the center of the bottom surface of the cavity. The channel connects the first and second bayonet. Two annular steps for supporting the flange are provided around the cavity. A clearance groove for avoiding the positioning pin is provided between the two annular steps, and a flange groove for accommodating the flange edge is provided between the outer annular steps and the edge of the bayonet.

3. The support base for the integrated transmission generator of an aero-engine according to claim 2, characterized in that: The locking mechanism comprises a pair of through holes, a pair of nuts, and a pair of long screws. The pair of through holes are located on the mating surface of one of the half-supports and are respectively located on both sides of the bayonet and pass through the half-support. The pair of nuts are embedded in the mating surface of the other half-support and correspond to the through holes. The pair of long screws pass through the two through holes respectively and are screwed into the corresponding nuts to lock the two half-supports.

4. The support base for the integrated transmission generator of an aero-engine according to claim 3, characterized in that: Weight reduction grooves are provided on the upper surface, lower surface and side of each semi-support.

5. The support base for the integrated transmission generator of an aero-engine according to claim 4, characterized in that: Drainage holes are provided on the walls of the weight-reducing grooves on the upper and lower surfaces of each semi-support for draining the wastewater used to clean the generator exterior.

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