Ejection release device

Abstract

The invention discloses an ejection release device which comprises a base, a carbon fiber spring, a shear type mechanism, an unlocking pin, a spring bolt, a limiting pin, a load mounting disc and a load. One end of the shear-type mechanism is fixedly connected with the load mounting disc through a rotary hinge, and the other end is fixedly connected with the base through a rotary hinge; the carbon fiber spring is arranged between the load mounting disc and the base; the middle part of the carbon fiber spring is fixedly connected with the load mounting disc through a rotary hinge; a load is placed on the load mounting disc; the unlocking pin is fixedly connected with one end of the shear type mechanism; the spring bolt is fixedly connected with the load mounting disc through a rotary hinge; the limiting pin is fixedly connected with the load. According to the ejection release device, ejection release of the load is achieved through the shear type mechanism and the carbon fiber spring, the ejection release device has the advantages of being large in compression ratio, adjustable in elasticity and the like, the purposes of small compression occupied space and controllable release process before release can be achieved, and the ejection release device can be applied to the field of delivery of microsatellites and can also be applied to safety ejection seats. Air bag ejection and the like are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of small satellite launch, and in particular relates to an ejection release device. Background Art

[0002] With the development of micro-satellite launch technology, there is a demand for ejection release devices for single satellites or networked constellation satellites. In order to save launch costs, the ejection device needs to be light in weight, small in space, with large elastic force and controllable release process, and suitable for irregular shapes. It is necessary to design an ejection release device.

[0003] At present, the existing ejection release devices mainly realize satellite ejection release through springs (cylindrical springs and butterfly springs) and explosive bolts. The ejection stroke and force are greatly limited and occupy a large space. In addition, the use of explosive bolts has a large impact and the ejection process is uncontrollable. Summary of the invention

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art and to provide an ejection release device which utilizes a scissor mechanism and a carbon fiber spring to realize the ejection release of the load, and has the advantages of a large compression ratio and adjustable elastic force.

[0005] In order to solve the above technical problems, the present invention discloses an ejection release device, comprising: a base, a carbon fiber spring, a scissor mechanism, an unlocking pin, a locking tongue, a limit pin, a load mounting plate and a load;

[0006] One end of the scissor mechanism is fixedly connected to the load mounting plate through a swivel hinge, and the other end is fixedly connected to the base through a swivel hinge;

[0007] The carbon fiber spring is arranged between the load mounting plate and the base, and the middle part of the carbon fiber spring is fixedly connected with the load mounting plate through a rotary hinge;

[0008] The load is placed on the load mounting plate;

[0009] The unlocking pin is fixedly connected to one end of the scissor mechanism;

[0010] The lock tongue is fixedly connected to the load mounting plate through a swivel hinge;

[0011] The limit pin is fixedly connected to the load.

[0012] In the above ejection release device, before the load is ejected and released: the locking tongue keeps the position restriction on the limit pin to lock the load on the load mounting plate.

[0013] In the above ejection release device, before the load is ejected and released: the carbon fiber spring is in a flattened state.

[0014] In the above-mentioned ejection release device, when the load moves to the ejection release position, the unlocking pin presses the lock tongue to release the position restriction of the limit pin, releases the lock between the load and the load mounting plate, and utilizes the elastic force of the carbon fiber spring and the inertia force of the load to realize the ejection release of the load.

[0015] In the above ejection release device, a torsion spring is arranged on the rotating shaft of the lock tongue; the lock tongue uses the torsion spring to increase the locking torque, improve the locking reliability, and cooperates with the unlocking pin to provide the unlocking torque, thereby improving the unlocking speed.

[0016] In the above ejection release device, the unlocking pin changes the torque direction of the lock tongue while pressing the lock tongue, thereby achieving non-inertial unlocking.

[0017] In the above-mentioned ejection release device, the carbon fiber spring can be completely collapsed.

[0018] In the above ejection release device, the carbon fiber spring is a U-shaped carbon fiber structure spring.

[0019] The present invention has the following advantages:

[0020] (1) The present invention discloses an ejection release device, which can achieve the goal of small compression space before ejection release and controllable ejection release process. It has the characteristics of large elasticity and small size. It can be applied to the field of micro-satellite delivery, and can also be applied to various occasions such as safe ejection seats and airbag ejection.

[0021] (2) The present invention discloses an ejection release device, which uses a carbon fiber spring as an ejection component and can adjust the ejection force through the structural form; the carbon fiber spring can be completely flattened before ejection release, occupying a small space; the carbon fiber spring configuration can be adjusted according to the load configuration, and the applicability is better.

[0022] (3) The present invention discloses an ejection release device, in which the load is locked on the load mounting plate before ejection release, which is safe and controllable.

[0023] (4) The invention discloses an ejection release device, in which the load and the load mounting plate are naturally separated at the end of the ejection release, and the separation disturbance is small.

[0024] (5) The present invention discloses an ejection release device, which, compared with the prior art, is particularly suitable for higher release process control and ejection release of satellites with irregular shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of a state before ejection release of an ejection release device in an embodiment of the present invention;

[0026] Figure 2 The present invention is a schematic diagram of an ejection release device in an ejection release state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments disclosed in the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] One of the core ideas of the present invention is: an ejection release device is proposed, which uses a scissor mechanism and a carbon fiber spring to realize the ejection release of a load (such as a micro-satellite, etc.), and has the advantages of a large compression ratio and adjustable elastic force; the ejection release device described in the present invention can achieve the goal of small compression space occupied before ejection release and a controllable release process, has the characteristics of large elastic force and small size, can be applied to the field of micro-satellite delivery, and can also be used in various occasions such as safety ejection seats and airbag ejection.

[0029] Reference Figures 1-2 In this embodiment, the ejection release device includes: a base 1, a carbon fiber spring 2, a scissor mechanism 3, an unlocking pin 4, a locking tongue 5, a limiting pin 6, a load mounting plate 7 and a load 8. Among them, one end of the scissor mechanism 3 is fixedly connected to the load mounting plate 7 through a rotary hinge, and the other end is fixedly connected to the base 1 through a rotary hinge; the carbon fiber spring 2 is arranged between the load mounting plate 7 and the base 1, and the middle part of the carbon fiber spring 2 is fixedly connected to the load mounting plate 7 through a rotary hinge; the load 8 is placed on the load mounting plate 7; the unlocking pin 4 is fixedly connected to one end of the scissor mechanism 3; the locking tongue 5 is fixedly connected to the load mounting plate 7 through a rotary hinge; and the limiting pin 6 is fixedly connected to the load 8.

[0030] In this embodiment, the scissor mechanism 3 with a stable structure is used as a guide mechanism, and the lock tongue 5 and the limit pin 6 work together to achieve full locking of the load 8 before ejection release. Specifically, before the load 8 is ejected and released: the lock tongue 5 keeps the position limit of the limit pin 6 to lock the load 8 on the load mounting plate 7; at this time, the carbon fiber spring 2 is in a flattened state.

[0031] In this embodiment, mechanical unlocking can be achieved by setting the position of the unlocking pin 4, which is safe and reliable. Specifically, when the load 8 moves to the ejection release position, the unlocking pin 4 presses the locking tongue 5 to release the position restriction of the limit pin 6, releases the lock between the load 8 and the load mounting plate 7, and utilizes the elastic force of the carbon fiber spring 2 and the inertia force of the load 8 to realize the ejection release of the load 8.

[0032] In this embodiment, a torsion spring is provided on the rotating shaft of the lock tongue 5; the lock tongue 5 uses the torsion spring to increase the locking torque, improve the locking reliability, and cooperates with the unlocking pin 4 to provide an unlocking torque, thereby improving the unlocking speed.

[0033] In this embodiment, the unlocking pin 4 changes the torque direction of the lock tongue 5 while pressing the lock tongue 5, thereby achieving non-inertial unlocking.

[0034] In this embodiment, the carbon fiber spring 2 can be a U-shaped carbon fiber structure spring, which can be completely flattened to meet the requirements of a large compression ratio of the ejection device and adjustable ejection force, and achieve a large proportion of space compression ratio. It should be noted that the carbon fiber spring 2 is not limited to a U-shaped structure, and can be made into different shapes (such as a wave shape, etc.) according to the application occasion to meet the requirements of small space volume, and thus meet the assembly requirements of special shape loads.

[0035] In this embodiment, the structural load capacity of the carbon fiber spring 2 can be adjusted by combining the structural weaving and the composite layer material, and the curve of the ejection force and displacement of the load can be designed to meet special working conditions.

[0036] In summary, the present invention discloses an ejection release device, which can meet the requirements of small compression space and large ejection force. At the same time, the ejection release process of the load is safe and controllable through the design of the scissor mechanism and the lock tongue, and the carbon fiber spring can be parameterized to meet the requirements of accurate and controllable ejection process, which is suitable for different satellite structures or load forms, and has the advantages of simple and reliable structure, good feasibility, integrated control characteristics, etc. Specifically: 1) The main components of the carbon fiber spring action device are adopted, and the carbon fiber spring has the advantages of large elastic force and small compression volume, and the carbon fiber spring can be parameterized, which is applicable to a wider range of occasions; 2) The scissor mechanism cooperates with the lock tongue to ensure the reliable locking of the load and the load mounting plate before the ejection release, ensuring the safety and reliability of the ejection release process; 3) The lock tongue cooperates with the torsion spring to further improve the locking and release stability of the load; 4) It can be parameterized according to the requirements of the release process, with small space occupation and large ejection force, not limited to the ejection release of micro satellites, and has wide practicality and broad market prospects.

[0037] Although the present invention has been disclosed as above in the form of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

[0038] The contents not described in detail in the specification of the present invention belong to the common knowledge of the professionals in this field.

Claims

1. An ejection release device, characterized in that: include: Base (1), carbon fiber spring (2), scissor mechanism (3), unlocking pin (4), locking tongue (5), limit pin (6), load mounting plate (7) and load (8); One end of the scissor mechanism (3) is fixedly connected to the load mounting plate (7) via a swivel hinge, and the other end is fixedly connected to the base (1) via a swivel hinge; The carbon fiber spring (2) is arranged between the load mounting plate (7) and the base (1), and the middle part of the carbon fiber spring (2) is fixedly connected to the load mounting plate (7) via a rotary hinge; The load (8) is placed on the load mounting plate (7); The unlocking pin (4) is fixedly connected to one end of the scissor mechanism (3); The lock tongue (5) is fixedly connected to the load mounting plate (7) via a rotary hinge; The limiting pin (6) is fixedly connected to the load (8).

2. The ejection release device according to claim 1, characterized in that: Before the load (8) is ejected and released: the locking tongue (5) maintains the position restriction on the limiting pin (6) to lock the load (8) on the load mounting plate (7).

3. The ejection release device according to claim 2, characterized in that: Before the load (8) is ejected and released: the carbon fiber spring (2) is in a flattened state.

4. The ejection release device according to claim 3, characterized in that: When the load (8) moves to the ejection release position, the unlocking pin (4) presses the locking tongue (5) to release the position restriction on the limit pin (6), thereby releasing the lock between the load (8) and the load mounting plate (7), and utilizing the elastic force of the carbon fiber spring (2) and the inertia force of the load (8) to realize the ejection release of the load (8).

5. The ejection release device according to claim 4, characterized in that: A torsion spring is arranged on the rotating shaft of the lock tongue (5); the lock tongue (5) increases the locking torque by using the torsion spring to improve the locking reliability, and cooperates with the unlocking pin (4) to provide the unlocking torque to improve the unlocking rapidity.

6. The ejection release device according to claim 4, characterized in that: The unlocking pin (4) changes the torque direction of the lock tongue (5) while pressing the lock tongue (5), thereby realizing non-inertial unlocking.

7. The ejection release device according to claim 1, characterized in that: The carbon fiber spring (2) can be completely collapsed.

8. The ejection release device according to claim 1, characterized in that: The carbon fiber spring (2) is a U-shaped carbon fiber structure spring.

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