Hook type connecting and unlocking device

An unlocking device and unlocking technology, which is applied to projectiles, self-propelled projectiles, offensive equipment, etc., can solve the problem that the belt-type separation device has a large separation impact, is not conducive to improving the reliability of the launch vehicle, and is difficult to control the uniformity of the preload force distribution. and other problems, to achieve the effect of improving separation reliability, effective connection method, and uniform force

CN107860274AActive Publication Date: 2018-03-30BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-03-30

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Abstract

A hook type connecting and unlocking device comprises an upper end frame (1), a rotating block (2), a rolling shaft (3), a base (4), an internal supporting ring (5), a lower end frame (6), a motor assembly (7), connecting rods (8) and a roller (9), wherein the upper end frame (1) and the lower end frame (6) are separately fixedly connected to two structures (10 and 11) to be connected and unlocked; a groove is formed in the upper end frame (1); the lower end frame (6) is fixedly connected with the base (4); one end of the rotating block (2) is connected to the base (4) through the rolling shaft (3); a projection is arranged on one side of the other end of the rotating block (2); the shape of the projection is matched with that of the groove; a slot is formed in the other side of the otherend of the rotating block (2); the internal supporting ring (5) is placed in the slot and is connected with the motor assembly (7) through the connecting rods (8); and under the driving effect of themotor assembly (7), the projection on the rotating block (2) rotates around the rolling shaft (3) to enter the groove of the upper end frame (1) or leave away from the groove of the upper end frame (1) through expansion and shrinkage of the internal supporting ring (5), and thus, locking and releasing of the two structures (10 and 11) are realized.
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Description

technical field

[0001] The invention belongs to the technical field of launch vehicle structures, and in particular relates to a device capable of realizing effective connection and unlocking between two structural parts. Background technique

[0002] The interstage and payload separation devices of launch vehicles are mainly divided into three types: wired type, point type and combined type separation. Typical line separation devices include flexible detonating cord, shaped energy cutting cord separation device, expansion tube separation device and airbag separation device, etc. Typical point separation devices include explosive bolts, explosive nuts, separation nuts, etc. The combined separation device is mainly a tape separation device. However, the existing separation devices all use pyrotechnic devices as the action energy, which has the disadvantages of large impact, undetectable and undetectable before use, and also has certain safety problems. For example, the wra...

Examples

Embodiment Construction

[0036] The purpose of the present invention is to disclose a separation method between stages and even satellites that can meet the separation requirements of space vehicles. The present invention will be described in detail below in conjunction with the accompanying drawings and examples. Such as figure 1 As shown, the structure of the hook-type connection and unlocking device mainly includes an upper frame 1, a rotating block 2, a roller 3, a base 4, an inner support ring 5, a lower frame 6, a motor assembly 7, a connecting rod 8 and a roller 9.

[0037] Wherein the upper end frame 1 is fixed together with the structural member 10 through the upper butt joint fastener, the lower end frame 6 is fixed together with the structural member 11 through the lower butt joint fastener, and the rotating block 2 is connected with the base 4 through the roller 3, The base 4 is fixed on the lower end frame 6 by fasteners, the inner support ring 5 is placed in the U-shaped groove of the ro...