JP2020079721A - Resistance load applying device and resistance load applying method - Google Patents

Abstract

To provide a resistance load applying device and a resistance load applying method, capable of applying a predetermined resistance force to a moving test body with a simple configuration.SOLUTION: A resistance load applying device 1 includes: a connection part 2, connectable with a door 51 moved by a drive device, movable together with the door 51; a guide part 3 for guiding the connection part 2 in one direction; and a blade part 5, fixed to the connection part 2, capable of cutting a plate member 4 placed along a moving direction of the connection part 2 guided by the guide part 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a resistance load device and a resistance load method.

  On the lower surface side of the fuselage or main wing of an aircraft, there is a storage room for storing legs, bombs, etc., and a door for opening and closing the opening of the storage room. The door has a structure rotatable about a rotation axis and is opened and closed during flight of the aircraft. Since the leg doors are opened and closed when the legs are stored and deployed, the leg doors are opened and closed, that is, while the aircraft is flying at a relatively low speed range. On the other hand, when the aircraft launches a missile or drops a bomb, the aircraft is flying at a high speed, so that when the storage door is opened and closed, the door is heavily loaded.

  Therefore, in order to confirm that the door installed on the aircraft can be opened and closed reliably during the flight of the aircraft, a test simulating a load performed on the ground may be required. The door operation confirmation test is a test in which a predetermined resistance force is applied to the door and it is confirmed that the door is opened and closed while the aircraft is flying. The door operation confirmation test is performed using a resistance load device for applying a predetermined resistance force to the door, which is a test body.

  Patent Document 1 below discloses an invention relating to a drum brake, in which a shoe having a friction material fixed thereto is pressed against a drum. When the driver applies the brake, the shoe is pushed out against the drum via the hydraulic cylinder, the friction material on the outer peripheral surface of the shoe is pressed against the drum, and the automobile is stopped.

JP, 2011-231875, A

  A method of applying resistance torque to the rotating shaft is conceivable in order to perform the operation confirmation test of the door installed in the aircraft. In this case, the brake mechanism described in Patent Document 1 is used. However, in this case, since the resistance load device becomes large in size, it is difficult to install the resistance load device having the brake mechanism on the rotary shaft of the door installed in the actual aircraft.

  Further, a method of applying a load to the door of the aircraft by using a hydraulic actuator that operates linearly can be considered. However, since the direction and the position of the rotary door change during operation, the hydraulic actuator cannot continue to apply a constant load.

  Furthermore, in the operation confirmation test of the door of the aircraft, after the door is opened, it is necessary to deploy the legs stored in the containment room and drop a mock bullet, and below the opening of the containment room Cannot install resistance load device.

  The present invention has been made in view of such circumstances, and provides a resistance load device and a resistance load method capable of applying a predetermined resistance force to a moving test body with a simple configuration. The purpose is to provide.

  A resistance load device according to a first aspect of the present invention is connectable to a test body that is moved by a drive device, a connection part that moves together with the test body, a guide part that guides the connection part in one direction, and A blade portion fixed to the connecting portion and capable of cutting a plate material installed along the moving direction of the connecting portion guided by the guide portion.

  According to this configuration, when the test body is moved by the drive device, a resistance force is applied, and it is inspected whether or not the test object can be normally operated while being applied with a resistance force from the outside. The movement of the test body is, for example, a parallel movement or a rotation operation of rotating about a certain axis. The connection part can be connected to the test body, and the connection part is moved together with the test body by driving the driving device. At this time, the connection part is guided in one direction together with the test body by the guide part. The plate member is installed along the moving direction of the connecting portion, and is arranged at a position where it can be cut by the blade portion fixed to the connecting portion. Since the blade portion is fixed to the connecting portion, the blade portion moves while cutting the plate material as the connecting portion moves. Since the blade part receives a resistance force when cutting the plate material, the connection part and the test body are moved by the resistance force when they are moved by the driving device.

  In the first aspect, the test body is an object that rotates about one end side, the connection portion and the guide portion have an arc shape, and the connection portion is a rotation operation of the test body. According to the above, the guide portion may move in an arc shape.

  According to this configuration, the object as the test body rotates around the one end side, and when the test body rotates, the connecting portion having the arc shape moves in the arc shape by the guide portion having the arc shape. To do.

  In the said 1st aspect, the said test body is a door member which opens and closes with respect to an opening part, the said connection part and the said guide part are installed in the moving direction side at the time of opening of the said door member, The said connection part is. , May move in the moving direction when the door member is opened together with the door member.

  According to this configuration, the door member performs an opening/closing operation with respect to the opening by rotating around the one end. The connecting portion and the guide portion are installed on the moving direction side when the door member is opened, and since the connecting portion moves in the moving direction when the door member is opened together with the door member, the door member is opened. At this time, the connection portion and the guide portion are not arranged in the opening direction of the opening portion.

  In the first aspect, the guide portion may include a main body portion that moves with the connection portion while guiding the connection portion, and a support portion that supports the main body portion.

  According to this configuration, the main body moves along with the connecting part while the connecting part is guided by the main body of the guide part. At this time, the main body part is supported by the support part. Thereby, the movement range of the test body, for example, the movement distance in the case of parallel movement and the rotation angle in the case of rotational movement can be extended.

  In the resistance load method according to the second aspect of the present invention, a step in which a connecting portion connected to a test body that is moved by a driving device moves together with the test body, and a guide portion guides the connecting portion in one direction. And a step of cutting a plate member installed along the moving direction of the connection portion guided by the guide portion by a blade portion fixed to the connection portion.

  According to the present invention, it is possible to apply a predetermined resistance force to a moving test body with a simple configuration.

It is a front view showing a resistance load device concerning one embodiment of the present invention, and showing the state where the door was closed. It is a front view showing a resistance load device concerning one embodiment of the present invention, and showing the state where the door was opened. It is a top view which shows the board|plate material and blade part of the resistance load apparatus which concerns on one Embodiment of this invention. It is a perspective view showing an aircraft, and shows a state where a door is closed. It is a perspective view showing an aircraft, and shows a state where a door is opened. It is a perspective view showing an aircraft, and shows a state where a door is closed. It is a perspective view showing an aircraft, and shows a state where a door is opened.

  The resistance load device 1 according to one embodiment of the present invention is used, for example, in an operation confirmation test for confirming the opening/closing operation of the door 51 provided in the aircraft 50. The operation confirmation test is a test in which a predetermined resistance force is applied to the door 51 to simulately confirm on the ground that the door 51 is surely opened and closed during the flight of the aircraft 50. The resistance load device 1 is a device that can apply a predetermined resistance force to the door 51.

  As shown in FIGS. 4 to 7, the door 51 provided in the aircraft 50 is provided in the opening 53 of the storage room 52 that is installed on the lower surface side of the body or main wing of the aircraft 50 and that stores the legs, the bombs, and the like. And is opened and closed with respect to the storage room 52. While the door 51 is moved to the open position and the storage room 52 is open, a missile mounted on the aircraft is launched or a bomb is dropped, or the legs of the aircraft 50 are deployed or stored. It will be done.

  When the door 51 is opened and closed during flight of the aircraft 50, especially during high-speed flight different from the time of takeoff and landing, a high load is applied to the door 51. The door 51 is a panel-like object that is long in one direction, and rotates about an axis provided at one end side along the longitudinal direction.

  The door 51 rotates by being driven by a driving device (not shown) and opens and closes with respect to the opening 53.

  The resistance load device 1 includes, for example, as shown in FIGS. 1 and 2, a connection portion 2, a guide portion 3, a blade portion 5, and the like. Further, the resistance load device 1 has a configuration in which the plate member 4 can be installed or removed along the connecting portion 2 and the guide portion 3.

  The connection portion 2 is a member having an arc shape, and can be connected to the door 51, which is a test body, at the one end 2a side. The one end 2a of the connecting portion 2 has a fixing portion 9 that is firmly fixed to the door 51 during the test. The connecting portion 2 is, for example, a hollow member having a rectangular cross section. The connecting portion 2 is connected to the rail 6 of the guide portion 3 on the side of the other end 2b and is supported by the guide portion 3. The connecting portion 2 is movable along the rail 6 in an arc shape on the extension of the arc-shaped portion of the connecting portion 2.

  During the test, when the door 51 is rotated by the drive of the drive device, the connecting portion 2 connected to the door 51 moves along with the door 51 along the extending direction of the rail 6 of the guide portion 3.

  The guide portion 3 includes a rail 6 that guides the connection portion 2 and a support portion 7 that supports the rail 6.

  The rail 6 is a member having an arc shape and has a configuration for guiding the connecting portion 2 in one direction. When the connecting portion 2 has a quadrangular cross section, the rail 6 has, for example, an inner surface that is slightly larger than the width of the connecting portion 2, and has a groove shape that allows the connecting portion 2 to slide along the inner surface.

  The rail 6 is movably supported by the support portion 7 and moves together with the connection portion 2. The support portion 7 is fixed to a structure (not shown) installed outside the resistance load device 1, and supports the rail 6 so that the resistance load device 1 is not displaced during a test. A plurality of rollers 8 are installed in the support portion 7, and the rail 6 is sandwiched between the adjacent rollers 8. The moving direction of the rail 6 is guided by a plurality of rollers 8.

  Further, the rail 6 is supported by the roller 8 of the support portion 7. The rail 6 can move in an arc shape along the rail 6 on the extension of the arc-shaped portion of the rail 6. During the test, when the door 51 is rotated by the drive of the driving device, the connection part 2 and the rail 6 move along with the door 51 along the roller 8 of the support part 7.

  As described above, since not only the connecting portion 2 but also the rail 6 is movable, the moving range of the connecting portion 2 can be expanded as compared with the case where the rail 6 does not move. Therefore, even if the movable range of the door 51 is wide, it is possible to move the connection part 2 in a wide range while maintaining the state in which the support part 7 supports the rail 6.

  The plate member 4 is installed at a predetermined position along the moving direction of the connecting portion 2, and is arranged at a position where it can be cut by the blade portion 5 fixed to the connecting portion 2. The plate member 4 is fixed to the support portion 7, for example. In the example shown in FIGS. 1 and 2, the plate member 4 is arranged on the outer peripheral side of the connecting portion 2 and the guide portion 3.

  The plate material 4 has a material, a plate thickness, and the like determined according to the resistance force generated by cutting the blade portion 5. The plate member 4 is made of metal, for example. As shown in FIG. 3, the plate member 4 is cut by the movement of the blade portion 5. The plate member 4 is used up in one operation, and when a new resistance force is applied, another plate member 4 is newly installed. Further, the plate member 4 may have a uniform plate thickness along the cutting direction, or may have a plate thickness that changes along the cutting direction, that is, according to the angular position of the plate member 4. ..

  The blade portion 5 is fixed to the connection portion 2 and has a blade edge capable of cutting the plate material 4 installed along the moving direction of the connection portion 2. The blade portion 5 is fixed to, for example, the other end 2b side of the connection portion 2. Since the blade portion 5 is fixed to the connection portion 2, the blade portion 5 moves while cutting the plate material 4 as the connection portion 2 moves. The blade portion 5 receives a resistance force from the plate material 4 when the plate material 4 is cut. As a result, when the connecting device 2 and the door 51 are rotationally moved by the drive device, the connecting part 2 and the door 51 move while being loaded with a resistance force.

  Two or more blades 5 may be arranged in parallel. The resistance force to be generated can be changed by increasing or decreasing the places where the blade portion 5 cuts the plate material 4 at the same time. The shape, material, size, etc. of the blade of the blade portion 5 are determined according to the resistance force generated when the plate member 4 is cut. The blade tip direction of the blade portion 5 is changed according to the direction of cutting the plate member 4. The blade tip of the blade portion 5 may be provided on only one side and may be attached or detached depending on the cutting direction, or may be provided on both sides.

  As shown in FIGS. 1 and 2, the connecting portion 2 and the guiding portion 3 described above are installed on the moving direction side when the door 51 is opened, and the connecting portion 2 and the rail 6 together with the door 51 open the door 51. Move in the direction of movement of time. That is, when the door 51 is opened, the connecting portion 2 is housed in the rail 6, and the rail 6 moves to the supporting portion 7 side.

  The door 51 opens and closes with respect to the opening 53 by rotating around one end. As described above, the connection part 2 and the guide part 3 are installed on the moving direction side when the door 51 is opened, and the connection part 2 and the rail 6 move together with the door 51 in the moving direction when the door 51 is opened. Therefore, when the door 51 is opened, the connection portion 2 and the guide portion 3 are not arranged in the opening direction of the opening portion 53.

  Next, an operation confirmation test of the door 51 using the resistance load device 1 according to the present embodiment will be described.

  First, the resistance load device 1 is fixed to the door 51 as a test body. At this time, the rotational movement direction of the door 51 and the rotational movement direction of the connection portion 2 and the rail 6 are adjusted to match. As a result, when the door 51 opens and closes, the connecting portion 2 and the rail 6 slide smoothly.

  Further, the resistance load device 1 is fixed to the structure via the support portion 7 so as not to cause a positional shift during the test. The resistance load device 1 is provided with the plate member 4 in an uncut state.

  When a resistance force is applied to the door 51 in the opening operation of the door 51, the door 51 is installed at a position closing the opening 53 of the storage chamber 52 before the start of the test. At this time, the connecting portion 2 is pulled out from the rail 6, and the rail 6 is also moved to the connecting portion 2 side. Further, the position of the plate member 4 is adjusted so that the blade portion 5 is located on the one end 4a side of the plate member 4.

  Then, when the test is started, the door 51 is opened by the driving device. As a result, the connecting portion 2 connected to the door 51 moves in an arc along the rail 6, and the rail 6 also moves in an arc while being guided between the plurality of rollers 8. At this time, the blade part 5 cuts the plate material 4 installed along the moving direction of the connection part 2. Further, the blade portion 5 receives a resistance force from the plate material 4 when cutting the plate material 4. Therefore, the connecting portion 2 and the door 51 move while being resistively loaded when they are rotationally moved by the drive device. At the end of the test, the blade portion 5 is located on the other end 4b side of the plate member 4.

  The resistance force generated when the blade portion 5 cuts the plate material 4 has been measured by performing a test in advance, and the opening operation of the door 51 is normally performed under the predetermined resistance force by the method described above. You can check whether it will be done.

  Further, as shown in FIG. 2, when the door 51 is opened, the connection portion 2 and the guide portion 3 are not arranged in the opening direction of the opening portion 53, so that the opening portion 53 is stored in the storage chamber 52. You can deploy your legs and drop mock bullets.

  When a resistance force is applied to the door 51 in the closing operation of the door 51, the door 51 is installed at a position where the opening 53 of the storage chamber 52 is open before the start of the test. At this time, the connecting portion 2 is housed in the rail 6, and the rail 6 is also moved to the supporting portion 7 side. Further, the position of the plate member 4 is adjusted so that the blade portion 5 is located on the other end 4b side of the plate member 4.

  Then, when the test is started, the door 51 is closed by the drive device. As a result, the connecting portion 2 connected to the door 51 moves in an arc along the rail 6, and the rail 6 also moves in an arc while being guided between the plurality of rollers 8. At this time, the blade part 5 cuts the plate material 4 installed along the moving direction of the connection part 2. Further, the blade portion 5 receives a resistance force from the plate material 4 when cutting the plate material 4. Therefore, when the connecting unit 2 and the door 51 are rotationally moved by the drive device, the connecting unit 2 and the door 51 move while being loaded with a resistance force. At the end of the test, the blade portion 5 is located on the end 4a side of the plate member 4.

  The resistance force generated when the blade portion 5 cuts the plate material 4 is measured by performing a test in advance, and the closing operation of the door 51 is normally performed in the state where the predetermined resistance force is applied by the method described above. You can check whether it will be done.

  As described above, according to the present embodiment, when the door 51 is opened and closed, a predetermined resistance force can be constantly applied, and the resistance force applied during actual operation (for example, during high speed flight of the aircraft 50). Can be simulated. Therefore, during actual operation, it can be surely confirmed whether or not the door 51 operates normally.

  In addition, the resistance force generated when the blade portion 5 cuts the plate material 4 is adjusted by appropriately setting the material and plate thickness of the plate material 4 and the shape, material, and size of the blade portion 5. it can. Therefore, only by selecting the plate member 4 or the blade portion 5, it is possible to easily set a load (for example, a high load during high-speed flight) generated when the door 51 is opened and closed while the aircraft 50 is flying.

  Further, the connecting portion 2 and the guide portion 3 are installed on the moving direction side when the door 51 is opened, and the connecting portion 2 and the rail 6 can move together with the door 51 in the moving direction when the door 51 is opened. Therefore, when the door 51 is opened, the connection portion 2 and the guide portion 3 are not arranged in the opening direction of the opening portion 53. Therefore, it is possible to execute a test relating to the deployment of the legs and the dropping of the simulated bullet after the door 51 is opened.

  In addition, in the above-described embodiment, the case where the door 51 of the aircraft 50 is the test body for the operation confirmation test has been described, but the test body of the present invention is not limited to this example, and is moved by the drive of the drive device. Other members may be used. Further, the movement of the test body is not limited to the rotational movement such as a door, but the movement of the test device is also applicable to the parallel movement of the position. When the test body moves in parallel, the connection portion and the guide portion of the resistance load device do not have an arc shape, and the portion where the connection portion and the guide portion slide with each other has a linear shape. In this case, the connecting portion is linearly movable along the rail on the extension of the linear portion of the connecting portion.

1: Resistance load device 2: Connection part 3: Guide part 4: Plate material 5: Blade part 6: Rail (main body part)
7: Support part 8: Roller 9: Fixed part 50: Aircraft 51: Door 52: Storage room 53: Opening part

Claims (5)

A connection part that is connectable to a test body that moves by a drive device and that moves with the test body,
A guide part for guiding the connecting part in one direction,
A blade part that is fixed to the connection part and is capable of cutting a plate material installed along the moving direction of the connection part guided by the guide part;
Resistance load device. The test body is an object that rotates around one end side,
The connection portion and the guide portion have an arc shape,
The resistance load device according to claim 1, wherein the connecting portion moves in an arc shape by the guide portion in accordance with the rotational movement of the test body. The test body is a door member that opens and closes with respect to the opening,
The connecting portion and the guide portion are installed on the moving direction side when the door member is opened,
The resistance load device according to claim 2, wherein the connecting portion moves together with the door member in a moving direction when the door member is opened. The guide is
While guiding the connecting portion, a main body portion that moves together with the connecting portion,
A support portion for supporting the main body portion,
The resistance load device according to claim 1, further comprising: A connecting portion connected to the test body that is moved by the driving device, moving together with the test body;
A guiding part guiding the connecting part in one direction;
A step of cutting a plate member installed along the moving direction of the connection part guided by the guide part by a blade part fixed to the connection part;
And a resistance load method.

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