CN203461095U - Helicopter wind-pressure rudder - Google Patents

Abstract

The utility model discloses a helicopter wind-pressure rudder which comprises tail wings (1), a tail beam (2), a hydraulic transmission rod (3), a rocker arm (4), connecting rods (5), a support frame (6) and hinge shafts (7), wherein the support frame (6) is transversely arranged and is fixedly arranged on the tail beam (2), and two ends of the support frame (6) are connected with the tail wings (1) through the hinge shafts (7); the tail part of the tail beam (2) is installed at the hydraulic transmission rod (3), and the rocker arm (4) is arranged on the hydraulic transmission rod (3); two connecting rods (5) are respectively hinged on the rocker arm (4) and are in one-to-one correspondence with the two tail wings (1); and the tail wings (1) are of a parallelogram flat-plate structure and are made of carbon fiber. As the shape and material of the tail wings are changed, the helicopter veering effect can be effectively increased, and the tail wings cannot be damaged. The helicopter wind-pressure rudder has the characteristics of clever design, simple structure, easiness in transformation, low transformation cost and the like.

Description

Autogyro blast yaw rudder

Technical field

The utility model belongs to autogyro technical field, specifically, and the particularly blast yaw rudder on autogyro.

Background technology

Blast yaw rudder is the important device on autogyro, it has solved small capacity double helighro and has removed the Steering after rotation empennage, and need not additionally provide power when turning to, can make dual-rotor helicopter turning to arbitrarily in 360 degree are carried out in original place, greatly improve manoevreability and the alerting ability of autogyro.Existing blast yaw rudder consists of empennage, tail boom, hydrostatic drive bar, rocking arm, connecting rod, bracing frame and hinge axis etc., and bracing frame is along lateral arrangement, and is fixed on tail boom, at the two ends of bracing frame, by hinge axis, connects empennage.Because empennage is similar to " L " shape, not only processing and fabricating is difficult, and can affect the effect turning to; Empennage adopts glass-felt plastic to make, and comparatively heavy on the one hand, on the other hand, structural strength is poor, is easily damaged, and does not ensure service life.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of blast yaw rudder that can guarantee autogyro turning efficiency.

The technical solution of the utility model is as follows: a kind of autogyro blast yaw rudder, comprise empennage (1), tail boom (2), hydrostatic drive bar (3), rocking arm (4), connecting rod (5), bracing frame (6) and hinge axis (7), support frame as described above (6) is along lateral arrangement, and be fixed on tail boom (2), two ends at bracing frame (6) connect empennage (1) by hinge axis (7), the afterbody of described tail boom (2) is installed hydrostatic drive bar (3), this hydrostatic drive bar (3) is provided with rocking arm (4), on described rocking arm (4), be hinged with respectively two connecting rods (5), two connecting rods (5) are corresponding one by one with two empennages (1), its key is: described empennage (1) is parallelogram slab construction, and made by carbon fiber.

The utility model changes empennage into parallelogram, and not only moulding is simple, and processing and fabricating is easy, and can strengthen the effect that autogyro turns to; Empennage adopts carbon fiber to make, and own wt is light on the one hand, can reduce the load of empennage running, and on the other hand, the structural strength of empennage is good, can not deform or damage, and in-use performance and service life are all secure.

In order further to take into account structural strength and the weight of empennage, the thickness of described empennage (1) is 18-24mm.

As preferably, the thickness of described empennage (1) is 21mm.

In order further to strengthen turning efficiency, four angles of described empennage (1) are fillet, and have the angle of 80-85 ° between the long limit of empennage (1) and minor face.

As preferably, the angle between the long limit of described empennage (1) and minor face is 82 °.

Beneficial effect: the utility model, by moulding and the material of change empennage, can effectively improve the effect that autogyro turns to, and guarantee that empennage is not damaged, has the features such as design is ingenious, simple in structure, transformation is easy, improvement cost is low.

Accompanying drawing explanation

Fig. 1 is working state schematic representation of the present utility model.

Fig. 2 is local structure schematic diagram of the present utility model.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail:

As shown in Figure 1 and Figure 2, the utility model consists of empennage 1, tail boom 2, hydrostatic drive bar 3, Rocker arm 4, connecting rod 5, bracing frame 6 and hinge axis 7 etc.Wherein, bracing frame 6 is along lateral arrangement, and perpendicular with tail boom 2, and bracing frame 6 is fixed on tail boom 2.Two ends at support frame as described above 6 are all provided with hinge axis 7, the corresponding empennage 1 of each hinge axis 7, and the medial surface of empennage 1 is hinged with corresponding hinge axis 7.Described empennage 1 is parallelogram slab construction, and four angles of empennage 1 are fillet, and have the angle of 80-85 ° between the long limit of empennage 1 and minor face, and in the present embodiment, the angle between the long limit of empennage 1 and minor face is preferably 82 °.Described empennage 1 is made by carbon fiber, and the thickness of empennage 1 is 18-24mm, and the present embodiment is preferably 21mm.

As shown in Figure 1 and Figure 2, afterbody at tail boom 2 is installed hydrostatic drive bar 3, this hydrostatic drive bar 3 is provided with Rocker arm 4, on described Rocker arm 4, be hinged with respectively two connecting rods 5, two connecting rods 5 are corresponding one by one with two empennages 1, one end of described connecting rod 5 is connected with Rocker arm 4, and the other end of connecting rod 5 and empennage 1 medial surface are hinged, and hinge-point is positioned at the below of the hinge axis 7 of corresponding end.

All the other structures of the present utility model and principle of work are same as the prior art, and therefore not to repeat here.

Claims (5)

1. an autogyro blast yaw rudder, comprise empennage (1), tail boom (2), hydrostatic drive bar (3), rocking arm (4), connecting rod (5), bracing frame (6) and hinge axis (7), support frame as described above (6) is along lateral arrangement, and be fixed on tail boom (2), two ends at bracing frame (6) connect empennage (1) by hinge axis (7), the afterbody of described tail boom (2) is installed hydrostatic drive bar (3), this hydrostatic drive bar (3) is provided with rocking arm (4), on described rocking arm (4), be hinged with respectively two connecting rods (5), two connecting rods (5) are corresponding one by one with two empennages (1), it is characterized in that: described empennage (1) is parallelogram slab construction, and made by carbon fiber.

2. autogyro blast yaw rudder according to claim 1, is characterized in that: the thickness of described empennage (1) is 18-24mm.

3. autogyro blast yaw rudder according to claim 2, is characterized in that: the thickness of described empennage (1) is 21mm.

4. according to the autogyro blast yaw rudder described in claim 1 or 2 or 3, it is characterized in that: four angles of described empennage (1) are fillet, and have the angle of 80-85 ° between the long limit of empennage (1) and minor face.

5. autogyro blast yaw rudder according to claim 4, is characterized in that: the angle between the long limit of described empennage (1) and minor face is 82 °.

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