CN111474661A - Uniform force focusing mechanism driven by inclined guide rail - Google Patents
Uniform force focusing mechanism driven by inclined guide rail Download PDFInfo
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- CN111474661A CN111474661A CN202010471405.9A CN202010471405A CN111474661A CN 111474661 A CN111474661 A CN 111474661A CN 202010471405 A CN202010471405 A CN 202010471405A CN 111474661 A CN111474661 A CN 111474661A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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Abstract
The invention discloses an inclined guide rail driven uniform force focusing mechanism, which comprises a focusing mounting seat, supports and a base, wherein the supports are connected to two sides of the focusing mounting seat in a sliding manner through vertical linear guide rails; a horizontal focusing assembly is arranged at the upper part of the base; the horizontal focusing assembly is provided with a spline shaft and a hollow lead screw which are matched through a sliding pair, the hollow lead screw is matched with the spline shaft through the sliding pair to realize axial movement along the spline shaft, and the hollow lead screw is in transmission connection with a wedge angle sliding block mechanism to drive the wedge angle sliding block to slide along the inclined guide rail and drive the focusing mounting seat to move along the vertical linear guide rail so as to adjust the vertical position of the optical element. The hollow lead screw can horizontally move on the spline shaft, so that the motion interference caused by manufacturing and mounting errors of the left wedge angle slide block and the right wedge angle slide block can be compensated, the problem of motion interference of a plurality of support points is solved on the premise of ensuring the support rigidity, and the processing and assembling difficulty of parts is reduced.
Description
Technical Field
The invention relates to the technical field of space load, in particular to an even-force focusing mechanism driven by an inclined guide rail for a large-volume space optical element.
Background
Due to the fact that the application environment of the space optical system is very severe, and the influence factors of the environment on the optical system are complex, for example, the influence factors of the change of the environment temperature, the change of the atmospheric pressure, the system vibration, the external impact and the like can all cause the focal plane of the optical system to generate a certain degree of axial deviation, and therefore the imaging quality of the optical system is adversely affected. In order to ensure the imaging quality of the optical system, the axial position of the corresponding optical component in the optical system needs to be adjusted, so that the defocusing amount of the focal plane of the optical system is reversely corrected, and a focusing mechanism is needed at this time.
Along with the increasing requirements on the resolution and the width of the space camera, the volume of the space camera is larger and larger, so that the supporting requirement on the optical element of the space camera is higher and higher, and particularly, the supporting rigidity and the stability of a moving part (a focusing mechanism) are not easy to guarantee due to the structural specificity.
Disclosure of Invention
The invention aims to solve the problem that the supporting rigidity of a large-volume focusing optical element is not easy to improve in the prior art, and provides an even-force focusing mechanism driven by an inclined guide rail, which provides two supporting points and does not introduce motion interference.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to an even force focusing mechanism driven by an inclined guide rail, which comprises:
a focus mount that mounts an optical element;
the supports are connected to the two sides of the focusing mounting seat in a sliding manner through vertical linear guide rails; and
the base is assembled and fixed at the upper end of the support;
a horizontal focusing assembly is arranged at the upper part of the base;
the focusing mounting base is in transmission connection with the horizontal focusing assembly through symmetrically arranged wedge angle sliding block mechanisms;
the power input end of the horizontal focusing assembly is provided with a power part, the power part outputs horizontal adjusting power to the horizontal focusing assembly through the power input end, and the horizontal focusing assembly drives the focusing mounting seat to move horizontally through the wedge angle sliding block mechanism so as to adjust the horizontal position of the optical element;
the wedge angle sliding block mechanism comprises an inclined guide rail obliquely arranged on the focusing mounting seat and a sliding block connected to the inclined guide rail in a sliding manner;
the horizontal focusing assembly is provided with a spline shaft and a hollow lead screw which are matched with each other through a sliding pair, the hollow lead screw is matched with the spline shaft through the sliding pair to realize the axial movement along the spline shaft, and the hollow lead screw is in transmission connection with a wedge angle sliding block mechanism to drive the wedge angle sliding block to slide along the inclined guide rail and drive the focusing mounting seat to move along the vertical linear guide rail so as to adjust the vertical position of the optical element.
Further, the support is used as a mounting base to be assembled and fixed with an external mechanism;
two groups of wedge angle sliding block mechanisms are symmetrically arranged on the focusing mounting seat;
the two inclined guide rails are opposite in inclination direction.
Further, the horizontal focusing assembly includes:
the spline shaft extends along the horizontal direction of the focusing installation seat, one end of the spline shaft is configured as the power input end, and the other end of the spline shaft is configured as the power detection output end;
the hollow lead screw is sleeved on the periphery of the spline shaft and matched with the spline shaft sliding pair;
threads are machined on two sides of the hollow lead screw, and the spiral directions of the threads on the two sides of the hollow lead screw are opposite;
the thread of the hollow lead screw is respectively in threaded connection with a left-handed nut and a right-handed nut;
the left-handed nut and the right-handed nut are both provided with focusing nut seats;
the focusing nut seat extends along the width direction of the base, and two ends of the focusing nut seat along the width direction of the base are connected with the base in a sliding mode through a horizontal linear guide rail so as to move horizontally relative to the length direction of the base;
and the power input end of the spline shaft is in transmission connection with the power part to receive the rotation power transmitted by the power part.
Furthermore, one end of the sliding block, which is far away from the inclined guide rail, is fixedly connected with the focusing nut seat;
the spline shaft drives the hollow lead screw to rotate and synchronously drives nuts on two sides to rotate so as to drive the corresponding focusing nut seat to move, and the focusing nut seat drives the sliding block to slide along the inclined guide rail so as to adjust the vertical position of the focusing mounting seat.
Further, the power unit includes:
the motor assembly is in transmission connection with the power input end of the spline shaft;
the motor mounting seat is fixedly assembled with the base;
the motor mounting seat is provided with a motor mounting seat bearing hole along the axial direction of the spline shaft, and a bearing is embedded in the motor mounting seat bearing hole;
the power input end of the spline shaft is in rotary connection with the motor mounting base through the bearing, and is in transmission connection with the motor output shaft of the motor assembly through the right coupler;
the bearing hole of the motor mounting seat is sealed by a bearing cover.
Furthermore, the power input end of the spline shaft is provided with a locking nut.
Furthermore, the power detection output end of the spline shaft is integrated with an encoder component.
Further, the encoder assembly includes:
the encoder mounting seat is fixedly connected with the base; and
the encoder is assembled on the encoder mounting seat and is in transmission connection with the power detection output end of the spline shaft;
the encoder mounting seat is provided with an encoder mounting seat bearing hole along the axial direction of the spline shaft, and a bearing is embedded in the encoder mounting seat bearing hole;
the power detection output end of the spline shaft is rotatably connected with the encoder mounting seat through the bearing, and the power detection output end of the spline shaft is connected with the encoder through a left coupler.
In the technical scheme, the uniform force focusing mechanism driven by the inclined guide rail provided by the invention has the following beneficial effects:
the hollow lead screw of this embodiment can be at integral key shaft horizontal migration to can compensate because the motion that bilateral symmetry's wedge angle slider mechanism made, installation error leads to is interfered, consequently, this application has solved the problem that many strong points motion is interfered under the prerequisite of guaranteeing to support rigidity, has reduced the part machining and has assembled the degree of difficulty.
The focusing mechanism of the invention forms moving guide for the focusing mounting base through the horizontal linear guide rail and the vertical linear guide rail, the focusing mounting base realizes horizontal direction adjustment under the driving of the power component, and drives the wedge angle slide block to obliquely move along the inclined track along with the horizontal movement of the focusing nut seat of the horizontal focusing assembly so as to realize vertical direction adjustment of the focusing mounting base.
The focusing mechanism of the invention is driven by two groups of wedge angle sliding block mechanisms which are symmetrically arranged and a horizontal focusing assembly, and the vertical height of an optical element is adjusted by the wedge angle sliding block mechanisms, so that the synchronization is good.
Meanwhile, the spline shaft of the focusing mechanism is connected with the hollow lead screw in a sliding manner through the sliding pair, so that power can be transmitted, but sliding is not limited, and the purposes of transmitting power and not introducing over-constraint are achieved.
In addition, the focusing mechanism can also integrate an encoder, the encoder is synchronously driven to work by receiving the power of the motor assembly through the spline shaft, the encoder is used as a measurement feedback unit, the working condition of the focusing mechanism can be monitored in real time, the feedback effect is good and sensitive, and the practicability of the focusing mechanism is improved.
The mechanism of the invention adopts a two-point supporting mode for the focusing mounting base without over-constraint, has large rigidity, high first-order mode, compact structure and lower requirements for the processing and assembling precision of parts.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a front view of a tilt track driven uniform focusing mechanism according to an embodiment of the present invention;
FIG. 2 is a left cross-sectional view of a tilt track driven uniform focusing mechanism according to an embodiment of the present invention;
fig. 3 is a top view of a tilt rail driven uniform focusing mechanism according to an embodiment of the present invention.
Description of reference numerals:
1. an encoder; 2. a left coupling; 3. an encoder mounting base; 4. a spline shaft; 5. a left-handed nut; 6. a hollow lead screw; 7. a horizontal linear guide rail; 8. right-hand turning of the nut; 9. a focusing nut seat; 11. a bearing cap; 12. a motor mounting seat; 14. locking the nut; 15. a right coupling; 16. an inclined guide rail; 17. a focusing mounting base; 18. a motor assembly; 19. a base; 20. a vertical linear guide rail; 21. and (4) a support.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
See fig. 1-3;
the invention relates to an even force focusing mechanism driven by an inclined guide rail, which mainly comprises:
a focus mount 17, the focus mount 17 mounting an optical element;
a base 19 assembled and fixed on the upper end of the support 21;
a horizontal focusing assembly is arranged at the upper part of the base 19;
the focusing mounting seat 17 is in transmission connection with the horizontal focusing assembly through symmetrically arranged wedge angle sliding block mechanisms;
the power input end of the horizontal focusing assembly is provided with a power part, the power part outputs horizontal adjusting power to the horizontal focusing assembly through the power input end, and the horizontal focusing assembly drives the focusing mounting seat 17 to move horizontally through a wedge angle slide block mechanism so as to adjust the horizontal position of the optical element;
the wedge angle sliding block mechanism comprises an inclined guide rail 16 obliquely arranged on the focusing mounting seat 17 and a sliding block connected to the inclined guide rail 16 in a sliding manner;
the horizontal focusing assembly is provided with a spline shaft 4 and a hollow lead screw 6 which are matched through a sliding pair, the hollow lead screw 6 is matched with the spline shaft 4 through the sliding pair to realize axial movement along the spline shaft 4, and the hollow lead screw 6 is in transmission connection with a wedge angle slider mechanism to drive a wedge angle slider to slide along an inclined guide rail 16 and drive a focusing mounting seat 17 to move along a vertical linear guide rail 20 so as to adjust the vertical position of an optical element.
Specifically, the embodiment discloses a focusing mechanism suitable for focusing of a large-volume optical element, the focusing mechanism is integrally and symmetrically arranged, transmission is formed between two groups of symmetrical wedge angle sliding block mechanisms and a horizontal focusing assembly on the upper portion of the mechanism, and the adjustment of the vertical position of the optical element is realized by the inclined sliding of the sliding blocks of the wedge angle sliding block mechanisms while the horizontal position is adjusted. The mechanism has good synchronism and completely meets the focusing requirement of a large-volume optical element.
Meanwhile, the spline shaft of the focusing mechanism of the embodiment is in sliding connection with the hollow lead screw through the sliding pair, so that power can be transmitted, but sliding is not limited, and the purposes of transmitting power and not introducing over-constraint are achieved.
Preferably, the support 21 is used as a mounting base to be assembled and fixed with an external mechanism in the embodiment;
two groups of wedge angle sliding block mechanisms are symmetrically arranged on the focusing mounting seat 17;
the two inclined guide rails 16 are inclined in opposite directions.
The embodiment further describes the structures of the focusing mounting seat 17, the support 21 assembled with the focusing mounting seat 17 and the like; the focusing mount 17 disclosed in the present embodiment is a main mounting component of the optical element, and the mount 21 and the base 19 outside the focusing mount 17 are mounting components assembled with an external mechanism. Meanwhile, the embodiment also designs a wedge angle slider mechanism connected with the horizontal focusing assembly, the horizontal focusing assembly drives the slider (the shape of the slider can be properly adjusted according to the installation of the focusing installation seat 17 and the horizontal focusing assembly on the upper part) to move along the inclined guide rail 16, and the slider can generate vertical displacement while moving horizontally due to the inclined arrangement of the inclined guide rail 16 relative to the horizontal plane, so that the vertical position of the optical element can be adjusted.
As a more preferable technical solution of the present embodiment:
the horizontal focusing assembly comprises:
the spline shaft 4 extends along the horizontal direction of the focusing installation seat 17, one end of the spline shaft 4 is configured as a power input end, and the other end of the spline shaft 4 is configured as a power detection output end;
the hollow lead screw 6 is sleeved on the periphery of the spline shaft 4 and is matched with the spline shaft 4 through a sliding pair;
threads are machined on two sides of the hollow lead screw 6, and the spiral directions of the threads on the two sides of the hollow lead screw 6 are opposite;
the thread of the hollow screw 6 is respectively connected with a left-handed nut 5 and a right-handed nut 8 in a threaded manner;
the left-handed nut 5 and the right-handed nut 8 are both provided with a focusing nut seat 9;
the focusing nut base 9 extends along the width direction of the base 19, and two ends of the focusing nut base 9 along the width direction of the base 19 are connected with the base 19 in a sliding way through the horizontal linear guide rail 7 so as to move horizontally relative to the length direction of the base 19;
the power input end of the spline shaft 4 is in transmission connection with the power part to receive the rotation power transmitted by the power part.
Among them, more preferable are:
the slide block is fixedly connected with the focusing nut seat 9;
the spline shaft 4 drives the hollow lead screw 6 to rotate and synchronously drives the nuts on the two sides to rotate so as to drive the corresponding focusing nut seat 9 to move, and the focusing nut seat 9 drives the sliding block to slide along the inclined guide rail 16 so as to adjust the vertical position of the focusing mounting seat 17.
The present embodiment further describes the structure and the operation principle of the horizontal focusing assembly as the horizontal focusing of the optical element: the horizontal focusing assembly uses the spline shaft 4 as a main power transmission part, and the power of the power part is transmitted to the spline shaft 4, and meanwhile, as the hollow lead screw 6 is internally provided with the key groove matched with the spline of the spline shaft 4, the hollow lead screw 6 can be driven to move along the axial direction of the spline shaft 4 along with the rotation of the spline shaft 4, so that the horizontal focusing of the optical element is realized. In addition, in order to drive the lower wedge angle slide block mechanism to work and ensure the synchronous operation of the vertical position focusing, nuts which synchronously move towards opposite directions, namely the left-handed nut 5 and the right-handed nut 8, are connected to the hollow lead screw 6 in a threaded manner;
in order to realize that the left-handed nut 5 and the right-handed nut 8 move in opposite directions along with the rotation of the hollow lead screw 6, firstly, the outer peripheral surface of the hollow lead screw 6 is required to be provided with threads matched with the corresponding nuts, and the hollow lead screw 6 rotates under the driving of the spline shaft 4, so that the corresponding nuts can be driven by the threads to move in a specified direction; the nut of the embodiment is fixedly connected with a focusing nut seat 9, and the focusing nut seat 9 is not only used as a mounting carrier of a corresponding nut, but also used as a mounting component of a horizontal linear guide rail 7 arranged in the width direction of the upper part of a base 19; in addition, the focusing nut base 9 of the present embodiment is connected to the above-mentioned wedge angle slider mechanism, and as the hollow lead screw 6 drives the corresponding nut to move towards the designated direction, the nut drives the focusing nut base 9 to move, and the focusing nut base 9 synchronously drives the slider of the wedge angle slider mechanism to move along the above-mentioned inclined guide rail 16, so as to drive the focusing mounting base 17 to slide along the vertical linear guide rail 20, and finally, the vertical position focusing of the optical element is realized.
Preferably, the power unit in this embodiment includes:
the motor component 18 is in transmission connection with the power input end of the spline shaft 4;
and a motor mounting seat 12 fixedly assembled with the base 19;
the motor mounting seat 12 is provided with a motor mounting seat bearing hole along the axial direction of the spline shaft 4, and a bearing is embedded in the motor mounting seat bearing hole;
the power input end of the spline shaft 4 is rotationally connected with the motor mounting base 12 through a bearing, and the power input end of the spline shaft 4 is in transmission connection with the motor output shaft of the motor assembly 18 through a right coupler 15;
the bearing hole of the motor mounting seat is closed by a bearing cover 11.
Further, a lock nut 14 is provided at the power input end of the spline shaft 4.
In the present embodiment, the structure and action principle of the power component are described in detail, the power of the spline shaft 4 of the present embodiment is supplied by the motor assembly 18, and as the output shaft of the motor assembly 18 rotates, the spline shaft 4 rotates with the assistance of the transmission components such as the shaft coupling and the bearing, so as to complete the horizontal position focusing described above, and in order to facilitate the integration of the auxiliary components such as the right shaft coupling 15 and the bearing, the motor mount 12 has the structure such as the bearing hole of the motor mount, and the description thereof is omitted.
As an expanded technical scheme of the application:
the above embodiments have described in detail the structure and principle of the horizontal position focusing and the vertical position focusing of the optical element, and the mechanism of the present embodiment may further incorporate a feedback unit in order to be able to monitor the focusing situation in real time. The method specifically comprises the following steps:
the power detection output end of the spline shaft 4 is integrated with an encoder component.
Among them, preferred are:
the encoder assembly includes:
the encoder mounting seat 3 is fixedly connected with the base 19; and
the encoder 1 is assembled on the encoder mounting seat 3 and is in transmission connection with the power detection output end of the spline shaft 4;
the encoder mounting seat 3 is provided with an encoder mounting seat bearing hole along the axial direction of the spline shaft 4, and a bearing is embedded in the encoder mounting seat bearing hole;
the power detection output end of the spline shaft 4 is rotatably connected with the encoder mounting base 3 through a bearing, and the power detection output end of the spline shaft 4 is connected with the encoder 1 through the left coupler 2.
This embodiment uses encoder 1 as the feedback unit, and it and integral key shaft 4 transmission, and concrete transmission connect in integral key shaft 4's power detection output, along with motor element 18 drive integral key shaft 4 rotates, and integral key shaft 4 pivoted power transmission gives encoder 1, according to the procedure of setting for, can accomplish pivoted angular surveying or other volume data of awaiting measuring to form the feedback, make things convenient for the staff to implement the control focusing condition, improve the practicality of mechanism.
In the technical scheme, the double-connecting-rod uniform-force focusing mechanism provided by the invention has the following beneficial effects:
the hollow lead screw 6 of this embodiment can be at integral key shaft 4 coparallel movement to can compensate because the motion that bilateral symmetry's wedge angle slider mechanism made, installation error leads to is interfered, consequently, this application has solved the problem that many fulcrum motion was interfered under the prerequisite of guaranteeing to support rigidity, has reduced the parts machining and has assembled the degree of difficulty.
The focusing mechanism of the invention forms moving guide to the focusing mounting seat through the horizontal linear guide rail 7 and the vertical linear guide rail 20, the focusing mounting seat 17 realizes horizontal direction adjustment under the driving of the power component, and drives the slide block to obliquely move along the inclined rail 16 along with the horizontal movement of the focusing nut seat 9 of the horizontal focusing assembly so as to realize vertical direction adjustment of the focusing mounting seat 17.
The focusing mechanism of the invention is driven by two groups of wedge angle sliding block mechanisms which are symmetrically arranged and a horizontal focusing assembly, and the vertical height of an optical element is adjusted by the wedge angle sliding block mechanisms, so that the synchronization is good.
Meanwhile, the spline shaft 4 and the hollow lead screw 6 of the focusing mechanism are connected in a sliding mode through the sliding pair, power can be transmitted, sliding is not limited, and therefore the purpose of transmitting power and not introducing over-constraint is achieved.
In addition, the focusing mechanism can also integrate the encoder 1, receives the power of the motor component through the spline shaft 4, synchronously drives the encoder 1 to work, and takes the encoder 1 as a measurement feedback unit, so that the working condition of the focusing mechanism can be monitored in real time, the feedback effect is good and sensitive, and the practicability of the focusing mechanism is improved.
The mechanism of the invention adopts a two-point supporting mode for the focusing mounting seat 17 without over-constraint, has large rigidity, high first-order mode, compact structure and lower requirements for the processing and assembling precision of parts.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. An inclined guide rail driven uniform force focusing mechanism, which is characterized by comprising:
a focusing mount (17), wherein the optical element is mounted on the focusing mount (17);
the support bases (21) are connected to the two sides of the focusing mounting base (17) in a sliding mode through vertical linear guide rails (20); and
a base (19) assembled and fixed at the upper end of the support (21);
a horizontal focusing assembly is arranged at the upper part of the base (19);
the focusing mounting seat (17) is in transmission connection with the horizontal focusing assembly through symmetrically arranged wedge angle sliding block mechanisms;
the power input end of the horizontal focusing assembly is provided with a power part, the power part outputs horizontal adjusting power to the horizontal focusing assembly through the power input end, and the horizontal focusing assembly drives the focusing mounting seat (17) to move horizontally through the wedge angle sliding block mechanism so as to adjust the horizontal position of the optical element;
the wedge angle sliding block mechanism comprises an inclined guide rail (16) obliquely arranged on the focusing mounting seat (17) and a sliding block connected to the inclined guide rail (16) in a sliding mode;
the horizontal focusing assembly is provided with a spline shaft (4) and a hollow lead screw (6) which are matched in a sliding pair mode, the hollow lead screw (6) is matched with the spline shaft (4) through the sliding pair mode to move axially along the spline shaft (4), and the hollow lead screw (6) is in transmission connection with a wedge angle slider mechanism to drive the slider to slide along the inclined guide rail (16) and drive the focusing mounting seat (17) to move along the vertical linear guide rail (20) so as to adjust the vertical position of an optical element.
2. The inclined guide rail driven uniform force focusing mechanism is characterized in that the support (21) is used as a mounting base to be assembled and fixed with an external mechanism;
two groups of wedge angle sliding block mechanisms are symmetrically arranged on the focusing mounting seat (17);
the two inclined guide rails (16) are inclined in opposite directions.
3. The inclined rail driven focus equalizer of claim 2 wherein said horizontal focus assembly comprises:
the spline shaft (4) extends along the horizontal direction of the focusing mounting seat (17), one end of the spline shaft (4) is configured as the power input end, and the other end of the spline shaft (4) is configured as the power detection output end;
the hollow lead screw (6) is sleeved on the periphery of the spline shaft (4) and is matched with the spline shaft (4) in a sliding pair mode;
threads are machined on two sides of the hollow lead screw (6), and the spiral directions of the threads on two sides of the hollow lead screw (6) are opposite;
the thread of the hollow lead screw (6) is respectively in threaded connection with a left-handed nut (5) and a right-handed nut (8);
the left-handed nut (5) and the right-handed nut (8) are both provided with focusing nut seats (9);
the focusing nut seat (9) extends along the width direction of the base (19), and two ends of the focusing nut seat (9) along the width direction of the base (19) are connected with the base (19) in a sliding mode through a horizontal linear guide rail (7) so as to move horizontally relative to the length direction of the base (19);
and the power input end of the spline shaft (4) is in transmission connection with the power part to receive the rotation power transmitted by the power part.
4. The inclined guide rail driven uniform force focusing mechanism as claimed in claim 3, wherein one end of the sliding block, far away from the inclined guide rail (16), is fixedly connected with the focusing nut seat (9);
the spline shaft (4) drives the hollow lead screw (6) to rotate and synchronously drives nuts on two sides to rotate so as to drive the corresponding focusing nut seat (9) to move, and the focusing nut seat (9) drives the sliding block to slide along the inclined guide rail (16) so as to adjust the vertical position of the focusing mounting seat (17).
5. The inclined rail driven uniform force focusing mechanism of claim 4, wherein the power unit comprises:
the motor component (18) is in transmission connection with the power input end of the spline shaft (4);
and a motor mounting seat (12) fixedly assembled with the base (19);
the motor mounting seat (12) is provided with a motor mounting seat bearing hole along the axial direction of the spline shaft (4), and a bearing is embedded in the motor mounting seat bearing hole;
the power input end of the spline shaft (4) is in rotary connection with the motor mounting seat (12) through the bearing, and the power input end of the spline shaft (4) is in transmission connection with a motor output shaft of the motor assembly (18) through a right coupler (15);
the bearing hole of the motor mounting seat is sealed by a bearing cover (11).
6. An inclined guide rail driven uniform force focusing mechanism according to claim 5, characterized in that the power input end of the spline shaft (4) is provided with a locking nut (14).
7. The inclined guide rail driven uniform force focusing mechanism as claimed in claim 3, wherein the power detection output end of the spline shaft (4) is integrated with an encoder assembly.
8. The tilt track driven focus equalizer of claim 7, wherein the encoder assembly comprises:
the encoder mounting seat (3) is fixedly connected with the base (19); and
the encoder (1) is assembled on the encoder mounting seat (3) and is in transmission connection with the power detection output end of the spline shaft (4);
the encoder mounting seat (3) is provided with an encoder mounting seat bearing hole along the axial direction of the spline shaft (4), and a bearing is embedded in the encoder mounting seat bearing hole;
the power detection output end of the spline shaft (4) is connected with the encoder mounting seat (3) in a rotating mode through the bearing, and the power detection output end of the spline shaft (4) is connected with the encoder (1) through the left coupler (2).
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| CN112099185A (en) * | 2020-08-28 | 2020-12-18 | 北京空间机电研究所 | Precision focusing device for optical component |
| CN112099288A (en) * | 2020-09-30 | 2020-12-18 | 长光卫星技术有限公司 | Space camera focusing mechanism applied to conjugated double focal planes |
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