Separate retractable compression release device

Abstract

The present invention proposes a separation and retraction type compression release device, which can realize separation and retraction while unlocking the unlocking device. It includes: a bracket, an end cover, a support, a bottom plate, a spring A, a spring B, an adapter plate A, an adapter plate B, a screw cap, an anti-drop cap, an unlocker A and an unlocker B; the upper support leg of the bracket passes through the through hole of the support and contacts the support, and the bottom of the support leg of the bracket is connected to the end surface of the bottom plate; one side of the end cover is connected to the adapter plate A, and the other side is connected to the support, and the end cover and the support constitute the main structure; the unlocker A, unlocker B, bracket and spring B are installed inside the main structure; the bottom plate is used to connect the bracket and the adapter plate B; the bottom plate is connected to the four support legs of the bracket; the unlocker A and unlocker B are installed on the inner side of the end cover and the inner side of the bracket respectively, and are used for unlocking and separating the separation and retraction type compression release device.

Description

Technical Field

[0001] The invention relates to a separation and retraction type clamping and releasing device, belonging to the technical field of aerospace on-orbit clamping and releasing devices. Background Art

[0002] In satellite structures, single-axis, dual-axis or three-axis turntables are often required to achieve satellite attitude conversion, measurement and other functions. During satellite launch and active phases, an unlocking device is required to mechanically limit the turntable structure to ensure the rigidity of the turntable and resist mechanical environments such as overload, impact and vibration. After the satellite enters orbit, the turntable unlocking device is unlocked to provide the required working environment for the turntable to achieve single-axis, dual-axis or three-axis rotation.

[0003] The existing unlocking device only has an unlocking function, and the unlocking device cannot be retracted after unlocking, resulting in the turntable structure having insufficient working space, affecting the assembly accuracy and working performance of the turntable. This type of turntable structure that requires working space after unlocking cannot be unlocked and released using a traditional unlocking device. Summary of the invention

[0004] In order to overcome the technical deficiencies of conventional turntable unlocking devices, the present invention proposes a separation and retraction type clamping and releasing device, which can realize separation and retraction while the unlocking device is unlocked.

[0005] The present invention is achieved through the following technical solutions.

[0006] A separation retractable compression release device, comprising: a bracket, an end cover, a support, a bottom plate, a spring A, a spring B, an adapter plate A, an adapter plate B, a screw cap, an anti-drop cap, an unlocker A and an unlocker B;

[0007] The upper support leg of the bracket passes through the through hole of the support and contacts the support, the circular through hole of the bracket is concentric with the circular through hole of the support, the connecting screw passes through it, and the bottom of the support leg of the bracket is connected to the end surface of the bottom plate;

[0008] One side of the end cover is connected to the adapter plate A, and the other side is connected to the support. The end cover and the support constitute a main structure; the unlocker A, unlocker B, bracket and spring B are installed inside the main structure;

[0009] The support has a through hole, through which the support leg of the bracket passes;

[0010] The bottom plate is used to connect the bracket and the adapter plate B; the bottom plate is connected to the four supporting legs of the bracket and is used to separate the retractable compression release device to provide the main structural rigidity;

[0011] The spring B is installed in the gap between the bracket and the support;

[0012] The screw cap is installed inside the anti-drop cap, and the base of the anti-drop cap is connected to the adapter plate A; the spring A is installed in the gap between the screw cap and the anti-drop cap;

[0013] The unlocker A and the unlocker B are respectively installed on the inner side of the end cover and the inner side of the bracket, and are used for unlocking and separating the retractable compression release device.

[0014] Beneficial effects of the present invention:

[0015] 1. The separation and retraction type compression release device of the present invention has high connection rigidity, which can meet the rigidity and strength performance requirements of the turntable unlocking device in the locked state during the satellite launch phase; on the other hand, the separation and retraction type compression release device can be unlocked to remove the restriction on the degree of freedom required for the turntable to work;

[0016] 2. The separation and retraction type compression release device of the present invention has a retraction and separation function when unlocking, and the unlocking and separation functions are decoupled, which can effectively avoid the disadvantage of insufficient working space caused by the relative position of the connected mechanism remaining unchanged after unlocking in the traditional unlocking device;

[0017] 3. The movement direction of the separation and retraction type compression release device of the present invention after unlocking is consistent with the separation direction, there is no matching surface in the separation direction, and the separation reliability is high;

[0018] 4. The separation and retraction type compression and release device of the present invention can be used not only for locking and unlocking the turntable, but also for vibration isolators and other structures that need to be locked, and has high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded schematic diagram of the separation and retraction type compression and release device of the present invention;

[0020] Figure 2 A cross-sectional view of the separation and retraction type compression release device of the present invention before unlocking and separation;

[0021] Figure 3 It is a schematic diagram of the state of the separation and retraction type compression release device of the present invention after unlocking and separation. DETAILED DESCRIPTION

[0022] The exemplary embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the embodiments shown and described in the accompanying drawings are only exemplary and are intended to illustrate the principles and spirit of the present invention, rather than to limit the scope of the present invention.

[0023] like Figure 1As shown, a separation retractable compression release device of the present invention comprises: a bracket 8, an end cover 5, a support 10, a bottom plate 11, a spring A, a spring B, an adapter plate A, an adapter plate B, a screw cap 2, an anti-drop cap 1, an unlocker A and an unlocker B;

[0024] The upper support leg of the bracket passes through the through hole of the support and contacts the support. The circular through hole of the bracket is concentric with the circular through hole of the support, and the connecting screw passes through it. The bottom of the support leg of the bracket is connected to the end surface of the bottom plate.

[0025] One side of the end cover is connected to the adapter plate A, and the other side is connected to the support. The end cover and the support constitute the installation main structure of the separation retractable compression release device; the unlocker A, unlocker B, bracket and spring B are installed inside the subject structure; in specific implementation, the end cover is provided with a circular through hole for the connecting screw to pass through;

[0026] The support has a through hole, through which the support leg of the bracket passes; in a specific implementation, the through holes are set to four;

[0027] The bottom plate is used to connect the bracket and the adapter plate B; the bottom plate is connected to the four supporting legs of the bracket and is used to separate the retractable compression release device to provide the main structural rigidity;

[0028] The spring B is installed in the gap between the bracket and the support; in specific implementation, before assembly, the spring B is in a free state, and the screws are assembled through the bottom through holes of the bracket and the support; during the assembly process, the spring B is compressed; after the assembly is completed, the spring B is in a compressed state;

[0029] The screw cap is installed inside the anti-drop cap, and the base of the anti-drop cap is connected to the adapter plate A; the spring A is installed in the gap between the screw cap and the anti-drop cap; in specific implementation, it is in a free state before assembly; the screw passes through the central through hole of the screw cap, the adapter plate A and the end cover to lock the screw cap, the spring A, the adapter plate A and the end cover as a whole; during the locking process, the spring A is gradually compressed to reach the compressed state after assembly;

[0030] The unlocker A and the unlocker B are respectively installed on the inner side of the end cover and the inner side of the bracket, and are used to unlock and separate the retractable compression release device; in this embodiment, the unlocker A and the unlocker B are hot knife unlockers.

[0031] It can be seen that the above-mentioned anti-drop cap, screw cap, spring A, adapter plate A, end cover, unlocker A, unlocker B, bracket, spring B, support, base plate and adapter plate B are assembled to form the overall structure of the separation and retraction type compression and release device of the present invention.

[0032] The unlocking process of the above structure is described in detail below. Figure 2 ,3 shown.

[0033] Unlocker A works and unlocks. After unlocking, spring A drives the screw nut to move axially inside the anti-dropping nut under the action of the clamping force; the screw nut and spring A are separated from adapter plate A to complete the unlocking process; after unlocking, the restriction of the separation and retraction clamping release device on the degree of freedom required for the turntable to work is released.

[0034] The separation process of the above structure is described in detail below. Figure 2 , 3 shown.

[0035] Unlocker B works and unlocks; after unlocking, spring B drives the end cover and the support to move axially under the action of the clamping force; the end cover separates from the adapter plate A and finally contacts with the bottom plate to complete the separation process; after separation, the adapter plate A connected to the turntable separates from the end cover, and has the working space required by the turntable.

[0036] During specific implementation, the separation and retraction type clamping and releasing device of the present invention is installed between the turntable and the mounting platform. The installation position and the number of the separation and retraction type clamping and releasing device are determined according to the configuration and the number of degrees of freedom of the turntable. The separation and retraction type clamping and releasing device is connected to the turntable and the mounting platform respectively through the mechanical installation interfaces of the adapter plate A and the adapter plate B.

[0037] Those skilled in the art will appreciate that the embodiments described herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations that do not deviate from the essence of the present invention based on the technical revelations disclosed by the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A separation and retraction type compression and release device, characterized in that: include: Bracket, end cover, support, bottom plate, spring A, spring B, adapter plate A, adapter plate B, screw cap, anti-drop cap, unlocker A and unlocker B; The upper support leg of the bracket passes through the through hole of the support and contacts the support, the circular through hole of the bracket is concentric with the circular through hole of the support, the connecting screw passes through it, and the bottom of the support leg of the bracket is connected to the end surface of the bottom plate; One side of the end cover is connected to the adapter plate A, and the other side is connected to the support. The end cover and the support constitute a main structure; the unlocker A, unlocker B, bracket and spring B are installed inside the main structure; The support has a through hole, through which the support leg of the bracket passes; The bottom plate is used to connect the bracket and the adapter plate B; the bottom plate is connected to the four supporting legs of the bracket and is used to separate the retractable compression release device to provide the main structural rigidity; The spring B is installed in the gap between the bracket and the support; The screw cap is installed inside the anti-drop cap, and the base of the anti-drop cap is connected to the adapter plate A; the spring A is installed in the gap between the screw cap and the anti-drop cap; The unlocker A and the unlocker B are respectively installed on the inner side of the end cover and the inner side of the bracket, and are used for unlocking and separating the retractable compression release device; The end cover is provided with a circular through hole for the connecting screw to pass through; The support is provided with four through holes; The unlocker A and the unlocker B are hot knife unlockers.

2. A separation and retraction type compression and release device as claimed in claim 1, characterized in that: Before assembly, spring B is in a free state, and the screws are assembled through the bottom through holes of the bracket and the support; during the assembly process, spring B is compressed; after the assembly is completed, spring B is in a compressed state.

3. A separation and retraction type compression and release device as claimed in claim 1 or 2, characterized in that: It is in a free state before assembly; the screw passes through the central through hole of the screw cap, the adapter plate A and the end cover to lock the screw cap, the spring A, the adapter plate A and the end cover as a whole; during the locking process, the spring A is gradually compressed to reach the compressed state after assembly.

4. A separation and retraction type compression and release device as claimed in claim 1 or 2, characterized in that: Installed between the turntable and the mounting platform, the installation position and number of installations are determined according to the configuration and degree of freedom of the turntable.

5. A separation and retraction type compression and release device as claimed in claim 4, characterized in that: When installed between the turntable and the mounting platform, the adapter plate A and the adapter plate B are connected to the turntable and the mounting platform respectively through the mechanical mounting interfaces.

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