CN202472100U

CN202472100U - Flexible support device for primary mirror

Info

Publication number: CN202472100U
Application number: CN201220071566XU
Authority: CN
Inventors: 王炜; 李宇燕; 任国瑞; 李燕; 柴文义; 杨文刚; 李创; 樊学武
Original assignee: XiAn Institute of Optics and Precision Mechanics of CAS
Current assignee: XiAn Institute of Optics and Precision Mechanics of CAS
Priority date: 2012-02-29
Filing date: 2012-02-29
Publication date: 2012-10-03
Anticipated expiration: 2022-02-28

Abstract

The utility model relates to a flexible support device for a primary mirror, which comprises two support plates and a plurality of support rods arranged between the two support plates. 1. A flexible transition piece arranged between the connecting rod and the middle rod; the flexible transition piece includes a transition block, an end connecting plate and a middle connecting plate; both the end connecting plate and the middle connecting plate are parallel to the axis of the middle rod and perpendicular to each other, and the two The other ends of each connecting rod are fixedly connected with the corresponding support plate; two L-shaped through grooves are arranged between the transition block, the end connecting plate and the connecting rod, and two L-shaped through grooves are arranged between the transition block, the middle connecting plate and the middle rod. An L-shaped through-slot; the L-shaped through-slot is filled with an elastic damping pad. The technical problem that the main mirror support device cannot isolate the external environment and the influence of the installation foundation on the main mirror is solved. The utility model can effectively isolate the structural deformation of the installation foundation and the influence of heat flow on the main mirror through the flexible transition piece.

Description

A kind of primary mirror flexible supporting device

Technical field

The utility model belongs to space exploration, astronomical sight technical field, relates in particular to a kind of primary mirror flexible supporting device.

Background technology

In technical fields such as space exploration, astronomical sights, be the implementation space long-range target acquisition, the exploration of the universe secret, the bore that needs to increase photoelectric detection equipment improves the resolution and the many target energy of mobile phone wind of system, thereby more is prone to find and recognition objective.Heavy caliber primary mirror in these optoelectronic devices is the key component of entire equipment, and it not only receives the influence of external environment but also basic effect is installed, and primary mirror surface types distortion that these effects produce will cause the optical quality of entire equipment to descend.

The primary mirror bracing or strutting arrangement is to be used for that primary mirror is installed in primary mirror the basis is installed, and the primary mirror bracing or strutting arrangement also is vital.Though existing primary mirror bracing or strutting arrangement can satisfy the requirement of support accuracy; But can't isolate for the environment in the external world and the influence on installation basis; Malformation and hot-fluid that the basis is installed do not have and can be delivered on the primary mirror through the primary mirror bracing or strutting arrangement, and primary mirror is impacted.

The utility model content

Can't isolate extraneous environment and the influence of basis to primary mirror is installed in order to solve existing primary mirror bracing or strutting arrangement, the utility model provides a kind of primary mirror flexible supporting device.

The technical solution of the utility model:

A kind of primary mirror flexible supporting device, its special character is: comprises two back up pads that laterally arrange and is arranged on a plurality of support bars between two back up pads,

Said support bar comprises intermediate bar, be separately positioned on two connecting links between intermediate bar both ends and the corresponding back up pad, be separately positioned on the flexible transition part between connecting link and the intermediate bar;

Said flexible transition part comprises transition block, end web joint and middle connecting plate; Said end web joint and intermediate bar parallel axes, one of which end and connecting link are connected, and its other end and transition block are connected; Said middle connecting plate and intermediate bar parallel axes, one of which end and intermediate bar are connected, and its other end and transition block are connected; Said end web joint is vertical each other with middle connecting plate; The other end of said two connecting links all is connected with corresponding back up pad;

Be provided with two L shaped through slots between said transition block, end web joint and the connecting link, said two L shaped through slots along the end web joint symmetrical;

Be provided with two L shaped through slots between said transition block, middle connecting plate and the intermediate bar, said two L shaped through slots are symmetrical along middle connecting plate;

Be filled with L shaped elastic damping pad in said four L shaped through slots.

The corner of above-mentioned L shaped through slot is rounded down.

The advantage that the utility model had:

1, be provided with the flexible transition part on the utility model support bar, the flexible transition part comprises transition block, end web joint and middle connecting plate; End web joint and intermediate bar parallel axes, one of which end and connecting link are connected, and its other end and transition block are connected; Middle connecting plate and intermediate bar parallel axes, one of which end and intermediate bar are connected, and its other end and transition block are connected; The end web joint is vertical each other with middle connecting plate; The other end of two connecting links all is connected with corresponding back up pad; Be provided with two L shaped through slots between transition block, end web joint and the connecting link, said two L shaped through slots along the end web joint symmetrical; Be provided with two L shaped through slots between transition block, middle connecting plate and the intermediate bar, two L shaped through slots are symmetrical along middle connecting plate; The flexible transition part can effectively be isolated the influence to primary mirror of malformation that the basis is installed and hot-fluid.

2, the utility model is rounded down on the flexible transition part and can reduces stress and concentrate.

3, the utility model is through being fixed with the damping-constraining pad in each L shaped through slot; Can be in vibration processes consumed energy; Play damping effect; Reduce to be passed to the vibration on chassis, also can effectively improve the stress at flexible link place, prevent that flexible link from producing bigger stress and concentrating and cause flexible link destruction in vibration processes by the basis is installed.

4, fixing damping-constraining pad can prevent collision in the L shaped through slot.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the front view of Fig. 1;

Fig. 4 is the structural scheme of mechanism (being A place enlarged drawing) of the flexible transition part of the utility model;

Fig. 5 is the structural representation of the utility model damping-constraining pad;

Wherein Reference numeral is: 5-support bar, 7-back up pad, 51 connecting links, 52-intermediate bar, 53-flexible transition part, 531-end web joint, 532-transition block, 533-middle connecting plate, 534-L shape through slot.

Embodiment

Shown in Fig. 1-5, the primary mirror flexible supporting device comprises two back up pads that laterally arrange 7 and is arranged on a plurality of support bars 5 between two back up pads 7,

Support bar 5 comprises intermediate bar 52, be separately positioned on two connecting links 51 between intermediate bar 52 both ends and the corresponding back up pad 7, be separately positioned on the flexible transition part 53 between connecting link 51 and the intermediate bar 52;

Flexible transition part 53 comprises transition block 532, end web joint 531 and middle connecting plate 533; End web joint 531 and intermediate bar 52 parallel axes, one of which end and connecting link 51 are connected, and its other end and transition block 532 are connected; Middle connecting plate 533 and intermediate bar 52 parallel axes, one of which end and intermediate bar are connected, and its other end and transition block are connected; The end web joint is vertical each other with middle connecting plate; The other end of said two connecting links all is connected with corresponding back up pad;

Be provided with between transition block, end web joint and the connecting link 534, two L shaped through slots of two L shaped through slots along the end web joint symmetrical;

It is symmetrical along middle connecting plate to be provided with 534, two L shaped through slots of two L shaped through slots between transition block, middle connecting plate and the intermediate bar;

Be filled with L shaped elastic damping pad 12 in four L shaped through slots.

Wherein the flexible transition part can effectively be isolated the influence to primary mirror of basic malformation of installation and hot-fluid; The corner of L shaped through slot is rounded down gentle concentrated to reduce stress;

Be filled with L shaped elastic damping pad in four L shaped through slots; It has three effects; The one, consumed energy in vibration processes plays damping effect, reduces to be passed to by the basis vibration of supporting seat; The 2nd, effectively improve the stress at flexible link place, prevent that flexible link from producing bigger stress and concentrating and cause flexible link destruction in vibration processes; The 3rd, can prevent collision.

The primary mirror flexible supporting device adopts adhesive means with being connected of primary mirror, and adhesive spots is distributed on the 0.68R circle, and is minimum through calculating the primary mirror malformation under action of gravity of this link position.

Claims

1. a primary mirror flexible supporting device is characterized in that: comprise two support plates arranged in parallel and a plurality of support bars arranged between the two support plates,

The support rod includes a middle rod, two connecting rods respectively arranged between two ends of the middle rod and corresponding support plates, and a flexible transition piece respectively arranged between the connecting rod and the middle rod;

The flexible transition piece includes a transition block, an end connecting plate and an intermediate connecting plate; the end connecting plate is parallel to the axis of the middle rod, one end of which is fixedly connected with the connecting rod, and the other end is fixedly connected with the transition block; The middle connecting plate is parallel to the axis of the middle rod, one end of which is fixedly connected with the middle rod, and the other end is fixedly connected with the transition block; the end connecting plate and the middle connecting plate are perpendicular to each other; the other ends of the two connecting rods One end is fixedly connected with the corresponding support plate;

Two L-shaped through grooves are arranged between the transition block, the end connecting plate and the connecting rod, and the two L-shaped through grooves are symmetrical to each other along the end connecting plate;

Two L-shaped through grooves are arranged between the transition block, the middle connecting plate and the middle rod, and the two L-shaped through grooves are symmetrical to each other along the middle connecting plate;

The four L-shaped through grooves are filled with L-shaped elastic damping pads.

2 . The flexible supporting device for the primary mirror according to claim 1 , wherein the corners of the L-shaped through grooves are rounded. 3 .