Mounting and fixing frame for miniature gas turbine generator

Abstract

The utility model discloses an installation fixing frame for a miniature gas turbine generator. The installation fixing frame comprises a supporting transverse frame, a first hanging bracket, a second hanging bracket and a third hanging bracket, the first hanging bracket comprises a connecting and fixing plate arranged at the lower end of the supporting transverse frame, and the tail of the micro gas turbine generator is fixed to the connecting and fixing plate through a fixing screw. The second lifting frame comprises double lifting lugs arranged at the lower end of the supporting transverse frame and an adapter, and a straight plate is arranged at the upper end of the adapter and movably fixed to the double lifting lugs; an arc-shaped plate is arranged at the lower end of the adapter and is fixed on the middle mounting end surface of the micro gas turbine generator; the third hanging bracket comprises an upper U-shaped clamp and a lower U-shaped clamp which are connected in a split mode, the upper U-shaped clamp and the lower U-shaped clamp are respectively provided with two adjusting screws, and the position of the central axis of the miniature gas turbine generator is adjusted. In the using process, the influence of vibration of the miniature gas turbine generator can be eliminated, the installation precision can be guaranteed, the installation efficiency is improved, and the installation difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of mechanical equipment, concretely is a kind of installation fixing frame for micro gas turbine generator. BACKGROUND

[0002] Micro gas turbine generator belongs to the power system of unmanned aerial vehicle, generally, generator set is composed of engine (provides kinetic energy), generator (produces current) and control system.In actual work, micro gas turbine generator can generate greater vibration, if generator set is directly connected with the fuselage of unmanned aerial vehicle directly hard, it will inevitably affect the normal operating state of unmanned aerial vehicle.

[0003] The Chinese patent "a fixed support for generator" with application number 201922166893.8 discloses a fixed support for generator, including fixed support outer frame, side fixed connecting plate, generator fixed base, fixed weighing plate, positioning connecting sleeve, fixed connecting plate, air pressure lifting rod and the like, the conventional connecting mode cannot be adjusted according to the position of working occasion, at the same time, the central axis of equipment cannot be guaranteed to be horizontal, especially when installing in the pod, the tail jet of micro gas turbine generator cannot be guaranteed to be concentric with the tail jet channel inside the pod, so as to affect exhaust efficiency, reduce working reliability, and it is not conducive to normal work of equipment. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of installation fixing frame, can eliminate vibration influence, improve connection strength, can also guarantee installation accuracy, reduce installation difficulty.

[0005] The technical scheme of the utility model is as follows:

[0006] The installation fixing frame for micro gas turbine generator is characterized by including support cross frame and first hanger, second hanger and third hanger installed at the lower end of support cross frame.

[0007] The first hanger includes connecting fixed plate arranged at the lower end of support cross frame, and the tail of micro gas turbine generator is fixed on the connecting fixed plate by fixed screw;The second hanger includes double lifting lugs and adapter arranged at the lower end of support cross frame, the upper end of adapter is straight plate, inserted in the gap of double lifting lugs, and fixed on double lifting lugs by pin shaft and split pin;The lower end of adapter is arc plate, and fixed on the middle installation end face of micro gas turbine generator;The third hanger includes split-coupled upper U-shaped clamp and lower U-shaped clamp, and the upper U-shaped clamp and lower U-shaped clamp are respectively provided with two adjusting screws, to adjust the position of central axis of micro gas turbine generator.

[0008] In the above installation fixing frame for micro gas turbine generator, the end of adjusting screw is provided with pressure block group, and is arranged close to the shell of micro gas turbine generator.

[0009] The mounting and fixing frame for the micro gas turbine generator, wherein the pressing block set comprises a T-shaped metal pressing block and a rubber vibration isolation pad, and the end face of the pressing block set is an arc structure matching the shell of the micro gas turbine generator.

[0010] The mounting and fixing frame for the micro gas turbine generator, wherein the two adjusting screws of the upper U-shaped clamp are symmetrically arranged on both sides of the median line of the shell cross section, and the included angle with the median line is 45°.

[0011] The mounting and fixing frame for the micro gas turbine generator, wherein the two adjusting screws of the lower U-shaped clamp are symmetrically arranged on both sides of the median line of the shell cross section, and the included angle with the median line is 45°.

[0012] The mounting and fixing frame for the micro gas turbine generator, wherein the connecting and fixing plate is a hollow structure, and a reinforcing rib is arranged between the bottom of the connecting and fixing plate and the supporting cross frame.

[0013] The mounting and fixing frame for the micro gas turbine generator, wherein a screw through hole is formed in the connecting and fixing plate, and the fixing screw is fixed on the mounting end face of the tail part of the micro gas turbine generator after passing through the screw through hole.

[0014] The mounting and fixing frame for the micro gas turbine generator, wherein the diameter of the screw through hole is 0.5-2mm larger than that of the fixing screw.

[0015] The mounting and fixing frame for the micro gas turbine generator, wherein the diameter of the screw through hole is 1.5mm larger than that of the fixing screw.

[0016] The mounting and fixing frame for the micro gas turbine generator, wherein the diameter of the screw through hole is 1.5mm larger than that of the fixing screw. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure front view of the micro gas turbine generator and the mounting and fixing frame structure of the utility model.

[0018] Figure 2 It is a structure front view of the micro gas turbine generator and the mounting and fixing frame structure of the utility model.

[0019] Figure 3 For the utility model installation fixed frame three-dimensional view;

[0020] Figure 4 For the utility model installation fixed frame left view;

[0021] Figure 5 For the utility device second hanger and partial structure enlarged view;

[0022] Figure 6 For the utility device third hanger and partial structure enlarged view;

[0023] Figure 7 For the utility device micro gas turbine generator is installed in the schematic diagram of the inside of the pod.

[0024] The reference signs are as follows: 1-micro gas turbine generator, 2-connection fixed plate, 3-reinforcing rib, 4-installation column, 5-bracket cross plate, 6-pivot, 7-adaptor, 8-, 9-upper U-shaped clamp, 10-lower U-shaped clamp, 11-adjusting screw, 12-locking nut, 13-pressing block group, 14-fixing screw, 15-U-shaped clamp connecting screw; 16-double lifting lug; 18-metal pressing block; 19-rubber vibration isolation pad; 21-first hanger; 22-second hanger; 23-third hanger; 71-straight plate; 72-arc plate. DETAILED DESCRIPTION

[0025] The installation fixed frame of the utility model is used for installing micro gas turbine generator on unmanned aerial vehicle wing hanging point or pod, wherein the frame body and hanger of installation fixed frame are made of high-strength aviation aluminum material.

[0026] As Figures 1 to 7 Indicated, for the installation fixed frame of micro gas turbine generator, including support cross 5 and install in the first hanger 21, second hanger 22 and third hanger 23 of support cross 5 lower end,

[0027] Figure 2 、 Figure 3 And Figure 4In the first hanger 21, a connecting fixed plate 2 is arranged at the lower end of the support cross 5, the tail of the micro gas turbine generator 1 is fixed to the connecting fixed plate 2 by a fixing screw 14, the connecting fixed plate 2 is a hollow special-shaped structure, and a reinforcing rib 3 is arranged between the bottom of the connecting fixed plate 2 and the support cross 5. A screw through hole is formed in the connecting fixed plate 2, the fixing screw 14 is fixed to the mounting end surface of the tail of the micro gas turbine generator 1 after passing through the screw through hole. In order to reserve an adjustment gap, the diameter of the screw through hole is 0.5-2mm larger than the diameter of the fixing screw 14. Preferably, the diameter of the screw through hole is 1.5mm larger than the diameter of the fixing screw 14, which reserves a gap for position adjustment for the installation of the second hanger 22 and the third hanger 23. The first hanger 21 is mainly used to bear the axial thrust, the connecting fixed plate and the mounting surface of the micro gas turbine generator are connected and fixed by a screw group, the connecting fixed plate and the mounting bracket are welded and fixed, and reinforcing ribs are welded on both sides to increase the overall strength.

[0028] Figure 3 and Figure 5 In the second hanger 22, a double lifting lug 16 and an adapter 7 are arranged at the lower end of the support cross 5, the upper end of the double lifting lug 16 is welded to the support cross 5, and the lower end has a gap. The upper end of the adapter 7 is a straight plate 71, which is inserted into the middle part of the double lifting lug 16 and is fixed to the double lifting lug 16 by a pin shaft 6 and a split pin 8; the lower end of the adapter 7 is an arc-shaped plate 72, which is fixed to the middle mounting end surface of the micro gas turbine generator 1 by a screw; the second hanger 22 is used to bear the weight of the generator body, and the middle mounting end surface is located at the center of gravity of the micro gas turbine generator 1. The thickness of the straight plate 71 is 2-3mm smaller than the gap of the double lifting lug 16, which is easy to insert during installation and reserves enough inclination adjustment allowance, which ensures the stability of the connection and also considers the interference problem of the whole machine during assembly, improving the installation efficiency. When the second hanger 22 is installed, the arc-shaped plate 72 of the adapter 7 is fixed to the mounting end surface of the micro gas turbine generator 1 by a screw, the upper end of the straight plate 71 of the adapter 7 is inserted into the gap of the double lifting lug 16 at the lower part of the support cross 5, then the pin shaft 6 is inserted for connection, and finally the split pin 8 is inserted into the tail end of the pin shaft 6 to prevent the pin shaft from falling off.

[0029] Figure 1 、 Figure 6 and Figure 7In the third hanger 23, the upper U-shaped clamp 9 and the lower U-shaped clamp 10 are coupled separately, and the upper U-shaped clamp 9 and the lower U-shaped clamp 10 are respectively provided with two adjusting screws 11 to adjust the position of the central axis of the micro gas turbine generator. The end of the adjusting screw 11 is provided with a pressing block group 13, the pressing block group 13 comprises a T-shaped metal pressing block 18 and a rubber vibration isolation pad 19, and the end surface of the pressing block group 13 is an arc structure matched with the shell of the micro gas turbine generator 1 and closely arranged on the shell of the micro gas turbine generator. The contact surface of the pressing block and the equipment is made of high-temperature rubber or other materials with high-temperature resistance and shock absorption effect, and the contact surface adopts an arc surface structure design to increase the stability of the fitting.

[0030] The third hanger 23 is an auxiliary support, and four groups of adjustable pressing blocks are used to support the tail part of the micro gas turbine generator, as shown in Figs. Figure 6 and Figure 7 The two adjusting screws 11 of the upper U-shaped clamp 9 are symmetrically arranged on the two sides of the median line of the shell cross section, and the included angle with the median line is 45°. The two adjusting screws 11 of the lower U-shaped clamp 10 are symmetrically arranged on the two sides of the median line of the shell cross section, and the included angle with the median line is 45°. The median line is the center line perpendicular to the two center lines of the generator cross section. In this way, the adjustment of the central axis of the micro gas turbine generator is conveniently realized, the tail nozzle of the generator is concentric with the tail nozzle channel in the pod, and the best aerodynamic characteristics and working efficiency of the micro gas turbine generator are ensured.

[0031] The micro gas turbine generator is fixed on the unmanned aerial vehicle hanging point or the pod through four high-strength bolts and the mounting column 4 on the mounting fixed frame. The mounting column 4 also plays a role of a cushion block, and a certain space is reserved between the support horizontal plate 5 and the fixing surface of the pod, so that the cable can pass through. The upper U-shaped clamp 9 and the mounting frame are welded and fixed, and a reinforcing rib is welded on the two sides to increase the overall strength. The upper U-shaped clamp 9 and the lower U-shaped clamp 10 are connected through bolts. The position of the support point is adjusted by controlling the screwing depth of the adjusting screw 11, and the locking nut 12 is used for locking after adjustment.

[0032] The third hanger 23 is arranged at the combustion chamber part of the micro gas turbine generator, which is prone to vibration during the combustion process; through the limiting of the U-shaped frame and the adjusting screw, on the one hand, the adjustment of the central axis of the micro gas turbine generator is conveniently realized, the tail nozzle of the generator is concentric with the tail nozzle channel in the pod, and the exhaust efficiency is ensured; on the other hand, the pressing block provided with the rubber vibration isolation pad at the end of the adjusting screw reduces the influence of the engine vibration on the pod and the unmanned aerial vehicle.

[0033] The mounting fixed frame of the utility model can not only eliminate the influence of the micro gas turbine generator vibration, but also ensure the installation precision, improve the installation efficiency, reduce the installation difficulty, and has a wide application prospect.

Claims

1. A mounting fixture for a microturbine generator, characterized by: The support crosspiece (5) is provided with a first hanger (21), a second hanger (22) and a third hanger (23) at the lower end of the support crosspiece (5). The first hanger (21) comprises a connecting fixed plate (2) arranged at the lower end of the support crosspiece (5), and the tail of the micro gas turbine generator (1) is fixed to the connecting fixed plate (2) by a fixed screw (14); the second hanger (22) comprises a double hanger lug (16) and an adapter (7) arranged at the lower end of the support crosspiece (5), the upper end of the adapter (7) is a straight plate (71), the straight plate (71) is fixed in the gap of the double hanger lug (16), the lower end of the adapter (7) is an arc-shaped plate (72), and the arc-shaped plate (72) is fixed to the middle mounting end surface of the micro gas turbine generator (1); the third hanger comprises an upper U-shaped clamp (9) and a lower U-shaped clamp (10) which are coupled in a split manner, the upper U-shaped clamp (9) and the lower U-shaped clamp (10) are respectively provided with two adjusting screws (11) for adjusting the position of the central axis of the micro gas turbine generator.

2. The mounting fixture for a micro-turbine generator of claim 1, wherein: The end of the adjusting screw (11) is provided with a pressure block group (13) which is in close contact with the shell of the micro gas turbine generator.

3. The mounting fixture for a micro-turbine generator of claim 2, wherein: The pressure block group (13) comprises a T-shaped metal pressure block (18) and a vibration isolation pad (19), and the end surface of the pressure block group (13) is an arc-shaped structure matched with the shell of the micro gas turbine generator (1).

4. The mounting fixture for a micro-turbine generator of claim 1, wherein: The two adjusting screws (11) of the upper U-shaped clamp (9) are symmetrically arranged on both sides of the median line of the shell cross section, and the included angle between the adjusting screw (11) and the median line is 45°.

5. The mounting fixture for a micro-turbine generator of claim 1, wherein: The two adjusting screws (11) of the lower U-shaped clamp (10) are symmetrically arranged on both sides of the median line of the shell cross section, and the included angle between the adjusting screw (11) and the median line is 45°.

6. The mounting fixture for a micro-turbine power generator of claim 1, wherein: The connecting fixed plate (2) is a hollow structure, and a reinforcing rib (3) is arranged between the bottom of the connecting fixed plate (2) and the support crosspiece (5).

7. The mounting fixture for a micro-turbine power generator of claim 1, wherein: A screw through hole is formed in the connecting fixed plate (2), and the fixed screw (14) is fixed to the mounting end surface of the tail of the micro gas turbine generator (1) after penetrating through the screw through hole.

8. The mounting fixture for a micro-turbine generator of claim 7, wherein: The diameter of the screw through hole is 0.5-2mm larger than the diameter of the fixed screw (14).

9. The mounting fixture for a micro-turbine generator of claim 8, wherein: The diameter of the screw through hole is 1.5mm larger than the diameter of the fixed screw (14).

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