CN218062468U

CN218062468U - Bypass door for air inlet protection device of helicopter engine

Info

Publication number: CN218062468U
Application number: CN202222625774.6U
Authority: CN
Inventors: 苏效平
Original assignee: Tianjin Tianlu Jiahang Technology Co ltd
Current assignee: Tianjin Tianlu Jiahang Technology Co ltd
Priority date: 2022-09-29
Filing date: 2022-09-29
Publication date: 2022-12-16
Anticipated expiration: 2032-09-29

Abstract

The utility model discloses a bypass door that can be used to helicopter engine protector that admits air, including the guard box, the back intercommunication of guard box has the air-supply line body, the bypass door body has all been seted up to the both sides of guard box, the inner chamber swing joint of bypass door body has the closing plate, the spout has been seted up to the bottom of this internal chamber of bypass door, the first spring of bottom fixedly connected with of spout inner chamber. The utility model discloses a set up the bypass door body, an intake for increasing the guard box, thereby increase the intake of air-supply line body, make the air-supply line body obtain bigger air input under anti-icing mode of operation, realize improving engine work efficiency's purpose, through setting up the closing plate, the effect of sealed bypass door body has been played, two kinds of mode at protector have been solved, the work efficiency of engine is different, in order to improve engine work efficiency by a wide margin, one set of bypass door subassembly's problem need be installed to this kind of protector.

Description

Bypass door for air inlet protection device of helicopter engine

Technical Field

The utility model relates to a helicopter technical field specifically is a can be used to helicopter engine protector that admits air's bypass door.

Background

With the continuous development of helicopter technology, people put more demands on the application scene of helicopters, such as under low-altitude sand dust conditions and icing weather conditions, under these severe environmental conditions, in order to keep the helicopter to have the capability of continuing flying, a protection device must be installed on an engine air inlet, the protection device should not only prevent sand dust from entering the engine air inlet, but also provide safe air inlet under icing conditions, however, in two working modes of the protection device, the working efficiency of the engine is different, in order to greatly improve the working efficiency of the engine, the protection device needs to be installed with a set of bypass door assembly, and therefore, a bypass door capable of being used for the helicopter engine air inlet protection device is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can be used to helicopter engine protector's that admits air bypass door possesses the advantage of being convenient for raise the efficiency, has solved at protector's two kinds of mode, and the work efficiency of engine is different, and in order to improve engine work efficiency by a wide margin, one set of bypass door subassembly's problem need be installed to this kind of protector.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a can be used to helicopter engine protector's that admits air, includes the protecting box, the back intercommunication of protecting box has the air-supply line body, the by-pass door body has all been seted up to the both sides of protecting box, the inner chamber swing joint of by-pass door body has the closing plate, the spout has been seted up to the bottom of this inner chamber of by-pass door, the first spring of bottom fixedly connected with of spout inner chamber, the top and the closing plate fixed connection of first spring, the fixedly connected with biax motor of center department at protecting box top, the equal transmission of output shaft of biax motor both sides is connected with the rolling wheel, the inner chamber fixedly connected with fixed rope of rolling wheel, the holding tank has all been seted up to the both sides at protecting box top, the bottom of fixed rope extends to the inner chamber of by-pass door body through the holding tank to the top fixed connection with the closing plate.

Preferably, the inner cavity of the protection box is movably connected with a fixing plate, and the inner cavity of the fixing plate is fixedly connected with a protective net.

Preferably, the mounting groove has all been seted up to the top and the bottom of protective housing inner chamber, the lower extreme the inner chamber swing joint of mounting groove has the installation piece, the lower extreme is kept away from to the installation piece one side and the fixed plate fixed connection of mounting groove inner chamber.

Preferably, the top of the fixed plate is provided with a placing groove, an inner cavity of the placing groove is connected with a movable plate in a sliding mode, and the top of the movable plate extends to the upper end of the inner cavity of the mounting groove and is movably connected with the inner cavity of the mounting groove.

Preferably, both sides of the bottom of the inner cavity of the placing groove are fixedly connected with second springs, and the tops of the second springs are fixedly connected with the movable plate.

Preferably, the two sides of the inner cavity of the placing groove are provided with limit grooves, the inner cavity of each limit groove is connected with a limit block in a sliding mode, and one side, far away from the inner cavity of each limit groove, of each limit block is fixedly connected with the movable plate.

Preferably, the surfaces of the output shafts on the two sides of the double-shaft motor are movably connected with supporting plates through bearings, and the bottoms of the supporting plates are fixedly connected with the protection box.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses a set up the bypass door body, an intake for increasing the guard box, thereby increase the intake of air-supply line body, make the air-supply line body obtain bigger air input under anti-icing mode of operation, realize the purpose that improves engine work efficiency, through setting up the closing plate, the effect of sealed bypass door body has been played, under sand control mode of operation, the bypass door body seals the closing plate, reduce the air input of air-supply line body, can prevent sand dust foreign matter etc. from getting into, through setting up the spout, be used for providing sliding space for the closing plate, through setting up first spring, the biax motor, the winding wheel, fixed rope and holding tank, the biax motor is used for driving the winding wheel and rotates, the winding wheel is rolling fixed rope when rotating, fixed rope vertical height changes when the rolling, thereby drive the closing plate and remove in the inside of spout, first spring is used for resetting the closing plate to the inside of spout, thereby be convenient for adjusting the work efficiency of engine in anti-icing mode of operation and sand control mode of operation, two kinds of mode at protector have been solved, the work efficiency of engine is different, in order to improve engine work efficiency by a wide margin, this kind of protection device needs the one set of problem of installation.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic cross-sectional structural view of the sealing plate, the chute and the first spring of the present invention;

fig. 3 is a schematic sectional view of the fixing plate of the present invention;

fig. 4 is an enlarged view of a portion a of fig. 2 according to the present invention.

In the figure: 1. a protective box; 2. an air inlet pipe body; 3. a bypass door body; 4. a sealing plate; 5. a chute; 6. a first spring; 7. a double-shaft motor; 8. a winding wheel; 9. fixing a rope; 10. accommodating grooves; 11. a fixing plate; 12. a protective net; 13. mounting grooves; 14. mounting blocks; 15. a placement groove; 16. a movable plate; 17. a second spring; 18. a limiting groove; 19. a limiting block; 20. and a support plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a bypass door for an air inlet protection device of a helicopter engine comprises a protection box 1, the back of the protection box 1 is communicated with an air inlet pipe body 2, both sides of the protection box 1 are respectively provided with a bypass door body 3, the inner cavity of the bypass door body 3 is movably connected with a sealing plate 4, the bottom of the inner cavity of the bypass door body 3 is provided with a chute 5, the bottom of the inner cavity of the chute 5 is fixedly connected with a first spring 6, the top of the first spring 6 is fixedly connected with the sealing plate 4, the center of the top of the protection box 1 is fixedly connected with a double-shaft motor 7, output shafts at both sides of the double-shaft motor 7 are respectively connected with a winding wheel 8 in a transmission manner, the inner cavity of the winding wheel 8 is fixedly connected with a fixed rope 9, both sides of the top of the protection box 1 are respectively provided with a holding groove 10, the bottom of the fixed rope 9 extends to the inner cavity of the bypass door body 3 through the holding groove 10 and is fixedly connected with the top of the sealing plate 4, through setting the bypass door body 3, the air inlet volume of the protective box 1 is increased, so that the air inlet volume of the air inlet pipe body 2 is increased, the air inlet pipe body 2 obtains larger air input in an anti-icing working mode, the aim of improving the working efficiency of an engine is achieved, through setting the sealing plate 4, the function of sealing the bypass door body 3 is achieved, in the anti-icing working mode, the bypass door body 3 seals the sealing plate 4, the air input of the air inlet pipe body 2 is reduced, sand dust foreign matters and the like can be prevented from entering, through setting the sliding chute 5, a sliding space is provided for the sealing plate 4, through setting the first spring 6, the double-shaft motor 7, the winding wheel 8, the fixed rope 9 and the accommodating groove 10, the double-shaft motor 7 is used for driving the winding wheel 8 to rotate, the winding wheel 8 winds the fixed rope 9 when rotating, the vertical height of the fixed rope 9 is changed when winding, thereby drive closing plate 4 and remove in the inside of spout 5, first spring 6 is used for resetting closing plate 4 to the inside of spout 5 to be convenient for adjust the work efficiency of engine among anti-icing mode and the sand control mode, solved two kinds of mode at protector, the work efficiency of engine is different, in order to improve engine work efficiency by a wide margin, one set of by-pass gate subassembly's problem need be installed to this kind of protector.

Specifically, the inner cavity of the protection box 1 is movably connected with a fixing plate 11, the inner cavity of the fixing plate 11 is fixedly connected with a protection net 12, the fixing plate 11 is arranged to fix the protection net 12, and the protection net 12 is arranged to filter impurities in the adsorbed air.

Specifically, mounting groove 13 has all been seted up to the top and the bottom of protective housing 1 inner chamber, and the inner chamber swing joint of lower extreme mounting groove 13 has installation piece 14, and one side and the fixed plate 11 fixed connection of lower extreme mounting groove 13 inner chamber are kept away from to installation piece 14, through the cooperation of mounting groove 13, installation piece 14 and fly leaf 16, have played the effect of being convenient for install fixed plate 11.

Specifically, the holding groove 15 has been seted up at the top of fixed plate 11, and the inner chamber sliding connection of holding groove 15 has a fly leaf 16, and the top of fly leaf 16 extends to the inner chamber of upper end mounting groove 13 to with the inner chamber swing joint of mounting groove 13, through setting up holding groove 15, be used for providing the sliding space for fly leaf 16.

Specifically, the two sides of the bottom of the inner cavity of the placing groove 15 are fixedly connected with the second springs 17, the tops of the second springs 17 are fixedly connected with the movable plate 16, and the second springs 17 are arranged to reset the movable plate 16 into the installing groove 13.

Specifically, the limiting grooves 18 have been all seted up to the both sides of standing groove 15 inner chamber, and the inner chamber sliding connection of limiting groove 18 has stopper 19, and one side that stopper 19 kept away from the inner chamber of limiting groove 18 and fly leaf 16 fixed connection through the cooperation of limiting groove 18 and stopper 19, have played the effect of spacing fly leaf 16, prevent that fly leaf 16 from droing from the inside of standing groove 15.

Specifically, the surface of output shaft of two sides of the double-shaft motor 7 is connected with a supporting plate 20 through a bearing in a movable manner, the bottom of the supporting plate 20 is fixedly connected with the protective box 1, the supporting plate 20 is arranged, the effect of supporting the double-shaft motor 7 is achieved, and the stability of the double-shaft motor 7 in use is improved.

During the use, under the sand control mode, at first through peripheral hardware control start double-shaft motor 7, the output shaft of double-shaft motor 7 drives wind-up wheel 8 and rotates, wind-up wheel 8 rolls fixed rope 9 when rotating, make fixed rope 9 upwards remove in the inside of holding tank 10, holding tank 10 drives closing plate 4 and removes in the inside of bypass door body 3 when removing, closing plate 4 seals bypass door body 3 after removing to the top of bypass door body 3 inner chamber, thereby reduce the intake, first spring 6 is in tensile state this moment, under the anti-icing mode, make double-shaft motor 7 reverse rotation through the peripheral hardware controller, double-shaft motor 7 drives wind-up wheel 8 and rotates, wind-up wheel 8 stretches out fixed rope 9 and makes fixed rope 9 downwards remove in the inside of holding tank 10, at this moment under the effect of closing plate 4 self gravity and the first spring 6 elasticity that resets, closing plate 4 shifts out from the inside of bypass door body 3, thereby increase the intake, two kinds of modes at protector have been solved, the work efficiency of engine is different, in order to improve engine work efficiency by a wide margin, this kind of protector needs the problem of installation door subassembly.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets, welding and the like, the machinery, parts and equipment adopt the conventional type in the prior art, the control mode is automatically controlled by a controller, the control circuit of the controller can be realized by simple programming of technicians in the field, and the present application belongs to the common knowledge in the field, and is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the present application.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bypass door that can be used to helicopter engine protector that admits air, includes guard box (1), its characterized in that: the back intercommunication of protective housing (1) has air-supply line body (2), bypass door body (3) have all been seted up to the both sides of protective housing (1), the inner chamber swing joint of bypass door body (3) has closing plate (4), spout (5) have been seted up to the bottom of bypass door body (3) inner chamber, the first spring of bottom fixedly connected with (6) of spout (5) inner chamber, the top and closing plate (4) fixed connection of first spring (6), fixedly connected with biax motor (7) are located at the center at protective housing (1) top, the equal transmission of output shaft of biax motor (7) both sides is connected with wind-up wheel (8), the inner chamber fixedly connected with fixed rope (9) of wind-up wheel (8), holding tank (10) have all been seted up to the both sides at protective housing (1) top, the bottom of fixed rope (9) extends to the inner chamber of bypass door body (3) through holding tank (10) to with the top fixed connection of closing plate (4).

2. A bypass door for a helicopter engine air intake guard according to claim 1, further comprising: the inner cavity of the protection box (1) is movably connected with a fixing plate (11), and the inner cavity of the fixing plate (11) is fixedly connected with a protective net (12).

3. A bypass door for a helicopter engine intake guard according to claim 2 wherein: mounting groove (13), lower extreme have all been seted up to the top and the bottom of protective housing (1) inner chamber the inner chamber swing joint of mounting groove (13) has installation piece (14), the lower extreme is kept away from in installation piece (14) one side and fixed plate (11) fixed connection of mounting groove (13) inner chamber.

4. A bypass door for a helicopter engine air intake guard according to claim 3, wherein: the top of the fixed plate (11) is provided with a placing groove (15), the inner cavity of the placing groove (15) is connected with a movable plate (16) in a sliding mode, and the top of the movable plate (16) extends to the inner cavity of the upper end of the mounting groove (13) and is movably connected with the inner cavity of the mounting groove (13).

5. A bypass door for a helicopter engine air intake guard according to claim 4, wherein: the two sides of the bottom of the inner cavity of the placing groove (15) are fixedly connected with second springs (17), and the tops of the second springs (17) are fixedly connected with the movable plate (16).

6. A bypass door for a helicopter engine air intake guard according to claim 4, wherein: limiting grooves (18) are formed in two sides of an inner cavity of the placing groove (15), a limiting block (19) is connected to the inner cavity of each limiting groove (18) in a sliding mode, and one side, far away from the inner cavity of each limiting groove (18), of each limiting block (19) is fixedly connected with the movable plate (16).

7. A bypass door for a helicopter engine intake guard according to claim 1 wherein: the surface of the output shaft on two sides of the double-shaft motor (7) is movably connected with a supporting plate (20) through a bearing, and the bottom of the supporting plate (20) is fixedly connected with the protection box (1).