Automatic locking and unlocking mechanism for folding wing shaft

Abstract

A folding wing shaft automatic locking and unlocking mechanism, wherein the folding wing shaft is provided with a locking hole for locking a lock pin, a locking mechanism support is fixedly mounted with a ball guide rail at one end, and a spring support is fixedly mounted at the other end; a lock pin base movable along the ball guide rail is mounted on the ball guide rail, a guide rod is mounted in the lock pin base, and the guide rod is fixedly connected to the lock pin; a spring is nested in a spring support rod, one end of the spring support rod contacts the rear end of the lock pin, and the other end of the spring support rod passes through and extends out of the spring support; one end of a locking mechanism pull rod is hinged to the lock pin base, and the other end of the locking mechanism pull rod is hinged to a locking mechanism slider, and the locking mechanism slider is mounted on a locking mechanism lead screw; a power source is connected to the locking mechanism lead screw. In the present invention, the power source drives the lock pin to withdraw from the locking hole, thereby realizing automatic unlocking of the folding wing shaft, and at the same time, under the action of the spring, the lock pin can be inserted into the locking hole, thereby realizing locking of the folding wing shaft, and the structure is reliable and the safety performance is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic locking and unlocking, and in particular to an automatic locking and unlocking mechanism for a folding wing rotating shaft. Background Art

[0002] In order to enable the aircraft to adapt to wide-range flight and at the same time enable it to always obtain greater aerodynamic benefits within a certain range, the wings must have variable sweep capabilities and be able to switch between different sweep states according to the flight envelope. This puts higher requirements on the locking and unlocking functions of the folding wings.

[0003] Currently, the folded wings are locked in place using a locking pin and a locking pin hole. After locking, the locking pin cannot automatically withdraw from the locking pin hole to achieve automatic unlocking. The locking pin can only be pulled out manually, which makes it impossible to fold the wings twice or even multiple times, and thus cannot achieve the ability to switch between different sweep states. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide an automatic locking and unlocking mechanism for a folding wing shaft to solve the problems in the above-mentioned background technology.

[0005] The technical problem solved by the present invention is achieved by adopting the following technical solutions:

[0006] A folding wing rotating shaft automatic locking and unlocking mechanism, comprising a lock pin, a lock pin base, a locking mechanism support, a guide rod, a ball guide rail, a spring, a spring support rod, a spring support, a locking mechanism pull rod, a folding wing rotating shaft, a locking mechanism slider, a locking mechanism screw and a power source, wherein the folding wing rotating shaft is provided with a locking hole for locking the lock pin, one end of the locking mechanism support is fixedly mounted with a ball guide rail, and the other end of the locking mechanism support is fixedly mounted with a spring support; a lock pin base movable along the ball guide rail is mounted on the ball guide rail The seat is provided with a guide rod which can slide back and forth along the axis of the lock pin base, and the guide rod is fixedly connected to the lock pin; the spring is nested on the spring support rod, one end of the spring support rod is in contact with the rear end of the lock pin, and the other end of the spring support rod passes through and extends out of the spring support; one end of the locking mechanism pull rod is hinged to the lock pin base, and the other end of the locking mechanism pull rod is hinged to the locking mechanism slider, and the locking mechanism slider is installed on the locking mechanism screw and rotates and translates with the locking mechanism screw; the power source is connected to the locking mechanism screw.

[0007] In the present invention, a locking section and a fixing section are provided at the front end of the locking pin, and an unlocking line is provided at the connection between the locking section and the fixing section. When the locking pin moves forward to the unlocking line, the locking section is inserted into the locking hole of the folding wing shaft to lock the wing.

[0008] In the present invention, a moving hole for guiding the rod to move along the axis of the lock pin base is provided on the lock pin base.

[0009] In the present invention, a groove for mounting a lock pin base is provided on the ball guide rail.

[0010] In the present invention, a limiting groove for nesting the spring is provided on the spring support rod.

[0011] In the present invention, a through hole for the spring support rod to pass through is provided on the spring support.

[0012] In the present invention, a plurality of locking holes for locking locking pins are provided on the folding wing rotating shaft.

[0013] When the present invention is used, the power source is first started to drive the locking mechanism screw to work. The locking mechanism screw rotates to drive the locking mechanism slider to move backward. The locking mechanism slider moves backward and drives the locking mechanism pull rod to move along with it. The locking mechanism pull rod pulls the lock pin base to move backward along the ball guide rail. The guide rod installed in the lock pin base drives the lock pin to move backward, causing the lock pin to exit the locking hole of the folding wing shaft. At the same time, the spring is compressed to store force. At this time, the folding wing shaft can rotate to realize the unlocking function.

[0014] When the locking mechanism slider moves forward and pushes the locking pin base forward, the position restriction of the locking pin's forward movement is released, but the locking pin is stopped by the folding wing shaft until it reaches the next locking hole. At this time, the locking pin is inserted into the locking hole of the folding wing shaft under the action of the spring and then locks the wing to realize the locking function. Beneficial effects

[0015] 1) The present invention uses a motor as a power source to drive the locking pin to withdraw from the locking hole, thereby automatically unlocking the folding wing shaft. At the same time, under the action of the spring, the locking pin can be inserted into the locking hole to lock the folding wing shaft. This allows the wing to be folded twice or even multiple times, thereby achieving switching between different swept states.

[0016] 2) The locking pin of the present invention only moves in the axial direction, and the structure is reliable and the safety performance is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a preferred embodiment of the present invention.

[0018] Figure 2 Schematic diagram of the installation of the lock pin base and the spring support rod in a preferred embodiment of the present invention. Implementation Method

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.

[0020] See also Figures 1-2 A folding wing shaft automatic locking and unlocking mechanism, comprising a lock pin 1, a lock pin base 2, a locking mechanism support 3, a guide rod 4, a ball guide rail 5, a spring 6, a spring support rod 7, a spring support 8, a locking mechanism pull rod 9, a folding wing shaft 10, a locking mechanism slider 11, a locking mechanism screw 12 and a locking mechanism motor 13, wherein the folding wing shaft 10 is provided with a locking hole for locking the lock pin 1, the ball guide rail 5 is fixedly mounted on one end of the locking mechanism support 3, and the spring support 8 is fixedly mounted on the other end of the locking mechanism support 3; the lock pin 1 is fixedly connected to the guide rod 4, and the guide rod 4 is mounted in the lock pin base 2 and can slide back and forth along the axis of the lock pin base 2 The locking mechanism is movable; the locking pin base 2 is mounted on the ball guide rail 5 and can move along the ball guide rail 5; the spring 6 is nested on the spring support rod 7, one end of the spring support rod 7 is in contact with the rear end of the locking pin 1, and the other end of the spring support rod 7 passes through and extends out of the spring support 8, which is used to provide a thrust for the locking pin 1 to move along the axis; one end of the locking mechanism pull rod 9 is hinged to the lock pin base 2, and the other end of the locking mechanism pull rod 9 is hinged to the locking mechanism slider 11, and the locking mechanism slider 11 is mounted on the locking mechanism screw 12 and rotates and translates with the locking mechanism screw 12; the locking mechanism motor 13 is connected to the locking mechanism screw 12, and is used to provide power for the locking mechanism screw 12.

[0021] In this embodiment, a locking section and a fixing section are provided at the front end of the locking pin 1, and an unlocking line is provided at the connection between the locking section and the fixing section. When the locking pin 1 moves forward to the unlocking line, the locking section is inserted into the locking hole of the folding wing shaft 10 to lock the wing.

[0022] In this embodiment, the lock pin base 2 is provided with a moving hole for guiding the rod 4 to move along the axis of the lock pin base 2 .

[0023] In this embodiment, a groove for mounting the lock pin base 2 is provided on the ball guide rail 5 .

[0024] In this embodiment, a limiting groove for nesting the spring 6 is provided on the spring support rod 7 .

[0025] In this embodiment, a through hole is provided on the spring support 8 for the spring support rod 7 to pass through.

[0026] In this embodiment, a plurality of locking holes for locking the locking pins 1 are provided on the folding-wing rotating shaft 10 , which are used for locking and unlocking the folding-wing rotating shaft 10 .

[0027] In this embodiment, when in use, the locking mechanism motor 13 is first started to drive the locking mechanism screw 12 to work. The locking mechanism screw 12 rotates to drive the locking mechanism slider 11 to move backward. The locking mechanism slider 11 moves backward and drives the locking mechanism pull rod 9 to move along with it. The locking mechanism pull rod 9 pulls the lock pin base 2 to move backward along the ball guide rail 5. The guide rod 4 installed in the lock pin base 2 drives the lock pin 1 to move backward, causing the lock pin 1 to exit the locking hole of the folding wing shaft 10. At the same time, the spring 6 is compressed to store force. At this time, the folding wing shaft 10 can rotate to realize the unlocking function.

[0028] The locking mechanism slider 11 moves forward to push the lock pin base 2 forward. At this time, the position restriction of the lock pin 1 moving forward is released, but the lock pin 1 is stopped by the folding wing shaft 10 until it reaches the next locking hole. At this time, the lock pin 1 is inserted into the locking hole of the folding wing shaft 10 under the action of the spring 6 and then locks the wing to achieve the locking function.

Claims

1. A folding wing shaft automatic locking and unlocking mechanism, comprising a lock pin, a lock pin base, a locking mechanism support, a guide rod, a ball guide rail, a spring, a spring support rod, a spring support, a locking mechanism pull rod, a folding wing shaft, a locking mechanism slider, a locking mechanism screw and a power source, wherein: The folding wing rotating shaft is provided with a locking hole for locking the locking pin, one end of the locking mechanism support is fixedly installed with a ball guide rail, and the other end of the locking mechanism support is fixedly installed with a spring support; the ball guide rail is installed with a lock pin base that can move along the ball guide rail, and a guide rod that can slide back and forth along the axis of the lock pin base is installed in the lock pin base, and the guide rod is fixedly connected to the lock pin; the spring is nested on the spring support rod, one end of the spring support rod contacts the rear end of the lock pin, and the other end of the spring support rod passes through and extends out of the spring support; one end of the locking mechanism pull rod is hinged to the lock pin base, and the other end of the locking mechanism pull rod is hinged to the locking mechanism slider, the locking mechanism slider is installed on the locking mechanism screw, and the power source is connected to the locking mechanism screw.

2. The automatic locking and unlocking mechanism for the folding wing shaft according to claim 1, characterized in that: The front end of the locking pin is provided with a locking section and a fixing section, and an unlocking line is provided at the connection between the locking section and the fixing section.

3. The automatic locking and unlocking mechanism for the folding wing shaft according to claim 1, characterized in that: The lock pin base is provided with a moving hole for the guide rod to move along the axis of the lock pin base.

4. The automatic locking and unlocking mechanism for the folding wing shaft according to claim 1, characterized in that: The ball guide rail is provided with a groove for installing a lock pin base.

5. The automatic locking and unlocking mechanism for the folding wing shaft according to claim 1, characterized in that: The spring support rod is provided with a limiting groove for nesting the spring.

6. The automatic locking and unlocking mechanism for the folding wing shaft according to claim 1, characterized in that: The spring support is provided with a through hole for the spring support rod to pass through.

7. The automatic locking and unlocking mechanism for the folding wing shaft according to claim 1, characterized in that: The folding wing rotating shaft is provided with a plurality of locking holes for locking the locking pins.

8. The automatic locking and unlocking mechanism for a folding wing shaft according to any one of claims 1 to 7, characterized in that: When in use, first start the power source to drive the locking mechanism screw to work, the locking mechanism screw rotates to drive the locking mechanism slider to move backward, the locking mechanism slider moves backward and drives the locking mechanism pull rod to move along with it, the locking mechanism pull rod pulls the lock pin base to move backward along the ball guide rail, and the guide rod installed in the lock pin base drives the lock pin to move backward, causing the lock pin to exit the locking hole of the folding wing shaft, and at the same time compresses the spring to store force, at this time the folding wing shaft can rotate to realize the unlocking function; When the locking mechanism slider moves forward and pushes the locking pin base forward, the position restriction of the locking pin's forward movement is released, but the locking pin is stopped by the folding wing shaft until it reaches the next locking hole. At this time, the locking pin is inserted into the locking hole of the folding wing shaft under the action of the spring and then locks the wing to realize the locking function.

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