CN112467384B - Pointing mechanism with micro-vibration isolation characteristic - Google Patents
Pointing mechanism with micro-vibration isolation characteristic Download PDFInfo
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- CN112467384B CN112467384B CN202011223870.7A CN202011223870A CN112467384B CN 112467384 B CN112467384 B CN 112467384B CN 202011223870 A CN202011223870 A CN 202011223870A CN 112467384 B CN112467384 B CN 112467384B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/08—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying two co-ordinates of the orientation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
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Abstract
The invention provides a pointing mechanism with a micro-vibration isolation characteristic, which comprises a first flexible supporting device, a second flexible supporting device and an azimuth angle movement mechanism, wherein the bottom of a pitching supporting base is fixedly connected to a turntable bearing gear of the azimuth angle movement mechanism; one side of the second lug plate is fixedly arranged on the third side wheel, and the other side of the second lug plate of the pitching platform is fixedly arranged on the second driven wheel; the driving bevel gear of the driving mechanism is meshed with the driven bevel gear. The invention can reduce the rigidity of the local structure on the micro-vibration transmission path and isolate the micro-vibration, thereby effectively solving the influence of the micro-vibration on the control precision of the pointing mechanism.
Description
Technical Field
The invention belongs to the field of pointing mechanisms, and particularly relates to a pointing mechanism with a characteristic of isolating micro-vibration.
Background
With the continuous development of space technologies such as deep space exploration, high-orbit mobile communication and low-orbit networking, communication traffic between satellites and between the satellites and the ground is larger and larger, transmission accuracy is higher and higher, the requirement on control accuracy of a pointing mechanism of a satellite antenna is higher and higher, the pointing accuracy of the pointing mechanism directly determines whether the load of the satellite antenna can be scanned, positioned and the like, and on the other hand, the quality of communication between the satellites and a communication target is directly determined. The pointing mechanism is a control and driving mechanism of a satellite antenna and the like, and pointing accuracy is used as a key technical index of the pointing mechanism, so that the working reliability of the whole system is directly influenced. Generally, the pointing mechanism is driven by a stepping motor, but the stepping motor generates a micro-vibration phenomenon in work, and the micro-vibration phenomenon affects the control precision of the pointing mechanism and also adversely affects other loads on the star, so how to isolate the micro-vibration generated by the stepping motor is important for improving the control precision of the pointing mechanism.
Disclosure of Invention
In view of this, the present invention provides a pointing mechanism with micro-vibration isolation characteristics, which can reduce the stiffness of a local structure on a micro-vibration transmission path and isolate micro-vibration, thereby effectively solving the problem of the influence of micro-vibration on the control accuracy of the pointing mechanism.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a pointing mechanism with the characteristic of micro-vibration isolation comprises a first flexible supporting device, a second flexible supporting device, an azimuth angle movement mechanism, a pitching supporting base, a driven mechanism, a driving mechanism and a pitching platform, wherein the bottom of the pitching supporting base is fixedly connected to a turntable bearing gear of the azimuth angle movement mechanism,
the driven mechanism comprises a first driven wheel, a second driven wheel, a main shaft and a driven bevel gear, the first driven wheel is connected to the second driven wheel through the main shaft, the driven bevel gear is fixedly installed on the main shaft,
the first side ring of the first flexible supporting device is fixedly arranged at the inner side of one end of the pitching supporting base, the fourth side ring of the second flexible supporting device is fixedly arranged at the inner side of the other end of the pitching supporting base,
one side of the first ear plate of the pitching platform is fixedly arranged on a second side wheel of the first flexible supporting device, and the other side of the first ear plate of the pitching platform is fixedly arranged on a first driven wheel of the driven mechanism; one side of a second ear plate of the pitching platform is fixedly mounted to a third side wheel of the second flexible supporting device, and the other side of the second ear plate of the pitching platform is fixedly mounted to a second driven wheel of the driven mechanism; the driving bevel gear of the driving mechanism is meshed with the driven bevel gear.
Furthermore, the azimuth motion mechanism comprises an azimuth support base, an azimuth motor, a spring plate driving gear, a limiting gear and a turntable bearing gear, wherein the vertical section of the azimuth support base is of a trapezoidal structure, the azimuth motor is fixedly installed on the lower surface of the top of the azimuth support base, the spring plate driving gear is fixedly installed on the upper surface of the top of the azimuth support base, the output end of the azimuth motor is fixedly connected to the spring plate driving gear to realize the rotation of the spring plate driving gear, and the turntable bearing gear is meshed with the spring plate driving gear and is fixedly installed on one side of the spring plate driving gear; two limit gears all mesh with shell fragment drive gear, and fixed mounting is to shell fragment drive gear opposite side.
Further, shell fragment drive gear includes gear body, go-between and shell fragment body, and gear body middle part is equipped with the cross and leads to the groove, and the go-between setting leads to the central part in groove at the cross to the four tip of four shell fragment body fixed connection to cross recess respectively of go-between realizes being connected of go-between and gear body, and the material of four shell fragment bodies is the spring steel.
Furthermore, the pitching support base is of a U-shaped structure, and the lower surface of the bottom of the pitching support base is fixedly connected to the turntable bearing gear and the upper surface of the pitching support base through the connecting shaft to form an active mechanism.
Furthermore, the active mechanism comprises an active support frame and a pitching motor, the active support frame is fixedly mounted on the pitching support base, the pitching motor is fixedly mounted on the lower surface of the top of the active support frame, and the output end of the pitching motor is fixedly connected to the active bevel gear.
Furthermore, the first flexible supporting device and the second flexible supporting device are identical in structure and symmetrical relative to the center line of the base, the first flexible supporting device comprises a first side ring, a second side ring and a triangular frame, three first supporting assemblies are arranged on the inner surface of the circumference of the first side ring, three second supporting assemblies are arranged on the inner surface of the circumference of the second side ring, and first sliding heads of the three first supporting assemblies are connected to second sliding heads of the three second supporting assemblies through the triangular frame, so that the first side ring is connected with the second side ring; the first side ring and the second side ring are identical in structure, three arc-shaped grooves are formed in the outer circumferential surfaces of the first side ring and the second side ring, three separating blocks are formed between the three arc-shaped grooves, and the three separating blocks are spaced by 120 degrees in pairs.
Furthermore, the first support assembly and the second support assembly are identical in structure, the first support assembly comprises a first sliding head, a first movable blade, a first fixed blade and a first arc-shaped connecting plate, one side of the first arc-shaped connecting plate is fixedly connected to the inner surface of the circumference of the first side ring through the first fixed connecting plate, the other side of the first arc-shaped connecting plate is connected to the first sliding head through the first movable connecting plate, and the first sliding head is arranged in contact with the inner surface of the circumference of the first side ring; three first sliding head of three first supporting component all is equipped with two fixed screw, and three No. two sliding head of three No. two supporting components all is equipped with two fixed screw.
Furthermore, the angle between the first movable blade and the first fixed blade is 60 degrees; the angle between every two of the three first supporting assemblies is 60 degrees, and three first fixed blades in the circumferential inner surface of the first side wheel respectively correspond to the positions of the three separating blocks one by one; the combination of the three first arc-shaped connecting plates of the three first supporting assemblies can form a perfect circle. .
Furthermore, the triangular frame is in an equilateral triangle structure, three corners of the triangular frame correspond to three first sliding heads one by one respectively, each corner of the triangular frame is provided with two stud bolts corresponding to two second fixing screw holes, and the three first sliding heads are connected to the three second sliding heads through the stud bolts respectively to realize the connection among the first side ring, the second side ring and the triangular frame; the first fixed blade, the first movable blade, the second fixed blade and the second movable blade are made of spring steel.
Furthermore, a reinforcing rib used for enabling the pitching supporting base structure to be more stable is arranged between the pitching supporting bases.
Compared with the prior art, the pointing mechanism with the characteristic of isolating the micro-vibration has the following advantages:
(1) the vibration isolation device has the characteristics of low natural frequency, low rigidity and the like, and can realize effective vibration isolation of the pointing mechanism on the influence of low frequency when the pointing mechanism works.
(2) The invention has two degrees of freedom motions, namely pitch angle motion and azimuth angle motion, the two motions are independently designed and do not interfere with each other, and meanwhile, the novel mechanism is added with a low-frequency vibration isolation technology, so that the micro-vibration generated by a driving motor can be effectively isolated or reduced, and the positioning precision of the pointing mechanism is improved. In addition, the pitch angle has a certain range of motion, and the azimuthal motion is not limited.
(3) The elastic sheet driving gear can realize motion output, the structure of the gear elastic sheet is designed by the elastic bent blades, the gear elastic sheet has the characteristic of flexibility, and the whole gear can realize lower rigidity, so the structure has lower cut-off frequency, and the azimuth motion shaft can realize micro vibration isolation effect.
(4) The first flexible supporting device has the advantages that lubrication is not needed, and meanwhile, due to the adoption of the structure of the elastic blades, the whole mechanism has lower rigidity, so that the first flexible supporting device has certain vibration damping performance and can realize the micro vibration isolation effect of the azimuth motion shaft.
(5) The elastic sheet driving gear and the first flexible supporting device are matched with each other, inertia of products such as an antenna and the like carried by the pointing mechanism can be decoupled from micro-vibration generated by the motor, and the design method greatly reduces the difficulty of precision design of the pointing mechanism.
(6) The invention adds the limit gear, and the mechanism mainly prevents the elastic sheet structure from generating micro deformation by using a method of adding the positioning meshing gear around the elastic sheet driving gear, thereby playing the role of error limitation.
(7) The first flexible supporting device has the characteristic of energy storage, and simultaneously introduces a structure with uniformly distributed multi-bending elastic blades to connect the whole set of structures in series.
(8) The connecting shaft and the main shaft are designed in a vibration isolation mode, so that the whole pointing mechanism forms a double-layer vibration isolation structure, the structural form innovatively provides a design method of the pointing mechanism, the vibration isolation technology is introduced into the design of the pointing mechanism instead of the traditional vibration isolation design on the basic layer of the pointing mechanism, the vibration isolation or vibration reduction effect can be improved, the vibration isolation principle is integrated into the pointing mechanism, and the occupancy rate of space is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
FIG. 1 is a schematic view of a pointing device with micro-vibration isolation according to an embodiment of the present invention;
FIG. 2 is a schematic view of an azimuthal motion mechanism according to an embodiment of the present invention;
FIG. 3 is a schematic view of a spring plate driving gear according to an embodiment of the invention;
FIG. 4 is a schematic view of a pitch support base according to an embodiment of the present invention;
FIG. 5 is a schematic view of a first flexible support device according to an embodiment of the present invention;
FIG. 6 is a schematic view of a transmission mechanism according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a product according to an embodiment of the present invention, which is set on a mechanical performance testing platform capable of performing batch testing.
Description of reference numerals:
1. a first flexible support device; 11. side ring number one; 111. an arc-shaped groove; 112. a separation block; 12. side loop II; 13. a triangular frame; 131. a stud bolt; 14. a first support assembly; 141. a first sliding head; 142. a first movable leaf; 143. a first fixed blade; 144. a first arc-shaped connecting plate; 145. a first fixing screw hole; 15. a second support assembly; 2. a second flexible support device; 3. an azimuth movement mechanism; 31. an azimuth support base; 32. an azimuth motor; 33. the shrapnel drives the gear; 331. a gear body; 332. a connecting ring; 333. a spring plate body; 34. a limit gear; 35. a turntable bearing gear; 4. a pitch support pedestal; 5. a driven mechanism; 51. a driven wheel I; 52. a second driven wheel; 53. a main shaft; 54. a driven bevel gear; 6. an active mechanism; 61. an active support frame; 62. a pitch motor; 63. a drive bevel gear; 7. a pitching platform; 71. a first ear plate; 72. and a second ear plate.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
A pointing mechanism with micro-vibration isolation characteristic comprises a first flexible supporting device 1, a second flexible supporting device 2, an azimuth angle movement mechanism 3, a pitching supporting base 4, a driven mechanism 5, a driving mechanism 6 and a pitching platform 7, wherein the bottom of the pitching supporting base 4 is fixedly connected to a turntable bearing gear 35 of the azimuth angle movement mechanism 3, an azimuth motor 32 works to drive the turntable bearing gear 35, and finally the pitching supporting base 4 changes in an azimuth angle, which is the first degree of freedom.
the first side ring 11 of the first flexible supporting device 1 is fixedly arranged at the inner side of one end of the pitching supporting base 4, the fourth side ring of the second flexible supporting device 2 is fixedly arranged at the inner side of the other end of the pitching supporting base 4,
the pitching platform 7 comprises a platform plate, a first lug plate 71 and a second lug plate 72, wherein the first lug plate 71 is fixedly arranged on one side of the lower surface of the platform plate, the second lug plate 72 is fixedly arranged on the other side of the lower surface of the platform plate,
one side of the first ear plate 71 of the pitching platform 7 is fixedly mounted to the second side wheel of the first flexible supporting device 1, and the other side of the first ear plate 71 of the pitching platform 7 is fixedly mounted to the first driven wheel 51 of the driven mechanism 5; one side of the second ear plate 72 of the pitching platform 7 is fixedly mounted to the third side wheel of the second flexible supporting device 2, and the other side of the second ear plate 72 of the pitching platform 7 is fixedly mounted to the second driven wheel 52 of the driven mechanism 5;
the driving bevel gear 63 of the driving mechanism 6 meshes with the driven bevel gear 54. The pitch motor 62 of the active mechanism 6 operates to effect a change in the pitch angle of the pitch platform 7, which is the second degree of freedom.
The azimuth movement mechanism 3 comprises an azimuth support base 31, an azimuth motor 32, a spring plate driving gear 33, a limit gear 34 and a turntable bearing gear 35, wherein the vertical section of the azimuth support base 31 is of a trapezoidal structure, so that more stable support can be provided, the pointing mechanism is more stable in working, and the working efficiency is improved; the azimuth motor 32 is fixedly mounted on the lower surface of the top of the azimuth support base 31, the elastic sheet drive gear 33 is fixedly mounted on the upper surface of the top of the azimuth support base 31, the output end of the azimuth motor 32 is fixedly connected to the elastic sheet drive gear 33, the elastic sheet drive gear 33 rotates, the turntable bearing gear 35 is meshed with the elastic sheet drive gear 33 and is fixedly mounted on one side of the elastic sheet drive gear 33; the two limit gears 34 are both meshed with the elastic sheet driving gear 33 and fixedly mounted on the other side of the elastic sheet driving gear 33, and the limit gears 34 mainly prevent the elastic sheet structure from deforming slightly by utilizing a method of additionally arranging positioning meshed gears around the elastic sheet driving gear 33, so that an error limiting effect is achieved.
The elastic sheet driving gear 33 comprises a gear body 331, a connecting ring 332 and elastic sheet bodies 333, wherein a cross-shaped through groove is formed in the middle of the gear body 331, the connecting ring 332 is arranged in the center of the cross-shaped through groove, the connecting ring 332 is fixedly connected to four end portions of the cross-shaped groove through the four elastic sheet bodies 333 respectively, the connecting ring 332 is connected with the gear body 331, the four elastic sheet bodies 333 are made of spring steel, certain flexibility and energy storage effect are achieved by the aid of the material of the spring steel, the elastic sheet driving gear 33 can achieve motion output, the structure of the gear elastic sheet is designed by elastic bent blades, and the elastic sheet driving gear has the characteristic of flexibility, the whole gear can achieve low rigidity, and therefore the structure has low cut-off frequency, and an azimuth motion shaft can achieve micro vibration isolation effect.
Every single move supports the whole U type structure that is of base 4, and every single move supports the bottom lower surface of base 4 and is equipped with driving mechanism 6 through connecting axle fixed connection to carousel bearing gear 35, every single move support base 4 upper surface.
The driving mechanism 6 comprises a driving support frame 61 and a pitching motor 62, the driving support frame 61 is fixedly mounted on the pitching support base 4, the pitching motor 62 is fixedly mounted on the lower surface of the top of the driving support frame 61, the output end of the pitching motor 62 is fixedly connected to a driving bevel gear 63, the pitching motor 62 works to drive the driving bevel gear 63 to rotate, the driving bevel gear 63 drives a driven bevel gear 54 to rotate, finally, the main shaft 53 of the driven mechanism 5 rotates, and the purpose that the first driven wheel 51 and the second driven wheel 52 rotate is achieved.
The first side ring 11 and the second side ring 12 are identical in structure, three arc-shaped grooves 111 are formed in the outer circumferential surfaces of the first side ring 11 and the second side ring 12, three separating blocks 112 are formed between the three arc-shaped grooves 111, the three separating blocks 112 are spaced at intervals of 120 degrees, and the arc-shaped grooves 111 are arranged so that the first side ring 11 and the second side ring 12 are integrally higher in rigidity.
The first support component 14 and the second support component 15 have the same structure, the first support component 14 comprises a first sliding head 141, a first movable blade 142, a first fixed blade 143 and a first arc-shaped connecting plate 144, one side of the first arc-shaped connecting plate 144 is fixedly connected to the inner circumferential surface of the first side ring 11 through the first fixed connecting plate, the other side of the first arc-shaped connecting plate 144 is connected to the first sliding head 141 through the first movable connecting plate, the first sliding head 141 is in contact with the inner circumferential surface of the first side ring 11, the contact surface of the first sliding head 141 and the inner circumferential surface of the first side ring 11 is matched, the first support component is of an arc-shaped structure, the sliding surface of the inner circumferential surface is polished by adopting a grinding process, the smoothness of the contact surface is ensured, and the friction coefficient is reduced, and, in order to ensure a good support characteristic, the contact surface contacting the sliding head 105 is designed with a large abutting surface, the position of the first sliding head 141 can be changed in the first side ring 11 more conveniently.
The angle that a movable blade 142 and a fixed blade 143 were separated by is 60, three group's supporting component 14 includes a three movable blade 142 and a three fixed blade 143, foretell movable blade and fixed blade two liang are separated by 60, even distribution is at the circumference internal surface of a side ring 11, the structure is more symmetrical, adopt spring steel blade equipartition design, make the inside fretwork shape that is of overall structure, this kind of design can be fine when the device high speed operation, effectively dispel the heat, do benefit to the clearance of its fretwork simultaneously, observe whether its inner structure normally works.
The angle between every two three first supporting assemblies 14 is 60 degrees, and three first fixed blades 143 in the inner surface of the circumference of the first side wheel are respectively in one-to-one correspondence with the positions of the three separating blocks 112.
The combination of the three first arc-shaped connecting plates 144 of the three first supporting assemblies 14 can form a perfect circle, in the initial state, the three first arc-shaped connecting plates 144 are separated from each other, in the working state, the three first arc-shaped connecting plates 144 gradually get close to the center, and finally the three first arc-shaped connecting plates 144 are in the closed state.
Three first sliding head 141 of three first supporting component 14 all is equipped with two fixed screw holes 145 No. one, and three second sliding head of three second supporting component 15 all is equipped with two fixed screw holes No. two, sets up fixed screw hole 145 and two fixed screw holes No. two, is when carrying out fixed connection for through stud 131, increases the stability of integrated device.
The triangular frame 13 is in an equilateral triangle structure, three corners of the triangular frame 13 correspond to three first sliding heads 141 one by one, each corner of the triangular frame 13 is provided with two stud bolts 131 corresponding to two second fixing screw holes, and the three first sliding heads 141 are connected to three second sliding heads through the stud bolts 131 respectively to realize connection among the first side ring 11, the second side ring 12 and the triangular frame 13.
The first fixed blade 143, the first movable blade 142, the second fixed blade and the second movable blade are all made of spring steel, and the material of the spring steel has certain flexibility and energy storage effect, so that on one hand, the rotary output torque of the device can be linearly output, and the device is ensured not to generate a jumping phenomenon during operation; on the other hand, the novel device has the characteristic of storing elastic potential energy, the initial position of the device can be kept unchanged, the device is always kept at a certain fixed position, and high positioning precision is provided.
Reinforcing ribs for enabling the pitching supporting base 4 to be more stable in structure are arranged between the pitching supporting bases 4.
According to the novel low-frequency vibration isolation pointing mechanism, the vibration isolation design is added on two independent motion shafts, the vibration isolation design of the elastic sheet driving gear 33 is adopted for azimuth angle motion, and the vibration isolation design of the first flexible supporting mechanism is adopted for pitch angle motion, so that the novel low-frequency vibration isolation pointing mechanism forms a double-layer vibration isolation mode.
A pointing mechanism with the characteristic of isolating micro-vibration has the working principle that an orientation motor 32 is turned on, the orientation motor 32 drives a spring piece driving gear 33 to rotate, a turntable bearing gear 35 is driven to rotate, the pitching support base 4 is rotated, and finally the pitching platform 7 is rotated on an azimuth angle; the pitching motor 62 is turned on, the pitching motor 62 drives the driving bevel gear 63 to rotate, the main shaft 53 of the driven mechanism 5 is driven to rotate, and finally the pitching platform 7 rotates in a pitching angle.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A pointing mechanism having micro-vibration isolation features, comprising: comprises a first flexible supporting device (1), a second flexible supporting device (2), an azimuth angle movement mechanism (3), a pitching supporting base (4), a driven mechanism (5), a driving mechanism (6) and a pitching platform (7), wherein a first side ring (11) of the first flexible supporting device (1) is fixedly arranged on the inner side of one end of the pitching supporting base (4), a fourth side ring of the second flexible supporting device (2) is fixedly arranged on the inner side of the other end of the pitching supporting base (4),
the first flexible supporting device (1) and the second flexible supporting device (2) are identical in structure and symmetrical relative to the central line of the base, the first flexible supporting device (1) comprises a first side ring (11), a second side ring (12) and a triangular frame (13), three first supporting components (14) are arranged on the inner surface of the circumference of the first side ring (11), three second supporting components (15) are arranged on the inner surface of the circumference of the second side ring (12), and a first sliding head (141) of each of the three first supporting components (14) is connected to a second sliding head of each of the three second supporting components (15) through the triangular frame (13), so that the first side ring (11) is connected with the second side ring (12); the first side ring (11) and the second side ring (12) are identical in structure, three arc-shaped grooves (111) are formed in the outer circumferential surfaces of the first side ring (11) and the second side ring (12), three separating blocks (112) are formed between the three arc-shaped grooves (111), every two of the three separating blocks (112) are 120 degrees apart,
the azimuth motion mechanism (3) comprises an azimuth support base (31), an azimuth motor (32), a spring plate driving gear (33), a limiting gear (34) and a turntable bearing gear (35), the vertical section of the azimuth support base (31) is of a trapezoidal structure, the azimuth motor (32) is fixedly mounted on the lower surface of the top of the azimuth support base (31), the spring plate driving gear (33) is fixedly mounted on the upper surface of the top of the azimuth support base (31), the output end of the azimuth motor (32) is fixedly connected to the spring plate driving gear (33), rotation of the spring plate driving gear (33) is achieved, the turntable bearing gear (35) is meshed with the spring plate driving gear (33) and is fixedly mounted on one side of the spring plate driving gear (33); the two limit gears (34) are both meshed with the shrapnel driving gear (33) and are fixedly arranged on the other side of the shrapnel driving gear (33),
the elastic sheet driving gear (33) comprises a gear body (331), a connecting ring (332) and elastic sheet bodies (333), a cross through groove is formed in the middle of the gear body (331), the connecting ring (332) is arranged in the center of the cross through groove, the connecting ring (332) is fixedly connected to the four end portions of the cross groove through the four elastic sheet bodies (333) respectively, and the connecting ring (332) is connected with the gear body (331),
the lower surface of the bottom of the pitching support base (4) is fixedly connected to a turntable bearing gear (35) through a connecting shaft, the upper surface of the pitching support base (4) is provided with an active mechanism (6),
the driven mechanism (5) comprises a first driven wheel (51), a second driven wheel (52), a main shaft (53) and a driven bevel gear (54), the first driven wheel (51) is connected to the second driven wheel (52) through the main shaft (53), the driven bevel gear (54) is fixedly installed on the main shaft (53),
the driving mechanism (6) comprises a driving support frame (61) and a pitching motor (62), the driving support frame (61) is fixedly arranged on the pitching support base (4), the pitching motor (62) is fixedly arranged on the lower surface of the top of the driving support frame (61), the output end of the pitching motor (62) is fixedly connected to a driving bevel gear (63), the driving bevel gear (63) is meshed with a driven bevel gear (54),
one side of a first ear plate (71) of the pitching platform (7) is fixedly installed on a second side ring (12) of the first flexible supporting device (1), and the other side of the first ear plate (71) of the pitching platform (7) is fixedly installed on a first driven wheel (51) of the driven mechanism (5); one side of a second lug plate (72) of the pitching platform (7) is fixedly installed on a third side wheel of the second flexible supporting device (2), and the other side of the second lug plate (72) of the pitching platform (7) is fixedly installed on a second driven wheel (52) of the driven mechanism (5).
2. A pointing mechanism having micro-vibration isolation properties as claimed in claim 1, wherein: the four elastic sheet bodies (333) are all made of spring steel.
3. A pointing mechanism having micro-vibration isolation properties as claimed in claim 1, wherein: the pitching support base (4) is of a U-shaped structure as a whole.
4. A pointing mechanism having micro-vibration isolation properties as claimed in claim 1, wherein: the first support assembly (14) and the second support assembly (15) are identical in structure, the first support assembly (14) comprises a first sliding head (141), a first movable blade (142), a first fixed blade (143) and a first arc-shaped connecting plate (144), one side of the first arc-shaped connecting plate (144) is fixedly connected to the inner surface of the circumference of the first side ring (11) through the first fixed connecting plate, the other side of the first arc-shaped connecting plate (144) is connected to the first sliding head (141) through the first movable connecting plate, and the first sliding head (141) is in contact with the inner surface of the circumference of the first side ring (11); three first sliding heads (141) of three first supporting components (14) are provided with two first fixing screw holes (145), and three second sliding heads of three second supporting components (15) are provided with two second fixing screw holes.
5. A pointing mechanism with micro-vibration isolation features as claimed in claim 4, wherein: the angle between the first movable blade (142) and the first fixed blade (143) is 60 degrees; the angles of the three first supporting assemblies (14) at intervals are 60 degrees, and three first fixed blades (143) in the inner surface of the circumference of the first side ring are in one-to-one correspondence with the positions of the three separating blocks (112); the combination of the three first arc-shaped connecting plates (144) of the three first supporting assemblies (14) can form a perfect circle.
6. A pointing mechanism with micro-vibration isolation features as claimed in claim 5, wherein: the triangular frame (13) is of an equilateral triangle structure, three corners of the triangular frame (13) correspond to three first sliding heads (141) one by one respectively, each corner of the triangular frame (13) is provided with two stud bolts (131) corresponding to two second fixing screw holes, and the three first sliding heads (141) are connected to the three second sliding heads through the stud bolts (131) respectively to realize connection among the first side ring (11), the second side ring (12) and the triangular frame (13); the first fixed blade (143), the first movable blade (142), the second fixed blade and the second movable blade are all made of spring steel.
7. A pointing mechanism having micro-vibration isolation properties as claimed in claim 1, wherein: reinforcing ribs for enabling the pitching supporting base (4) to be more stable in structure are arranged between the pitching supporting bases (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011223870.7A CN112467384B (en) | 2020-11-05 | 2020-11-05 | Pointing mechanism with micro-vibration isolation characteristic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011223870.7A CN112467384B (en) | 2020-11-05 | 2020-11-05 | Pointing mechanism with micro-vibration isolation characteristic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112467384A CN112467384A (en) | 2021-03-09 |
| CN112467384B true CN112467384B (en) | 2022-06-17 |
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| CN202011223870.7A Active CN112467384B (en) | 2020-11-05 | 2020-11-05 | Pointing mechanism with micro-vibration isolation characteristic |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0758383A (en) * | 1993-08-16 | 1995-03-03 | Japan Atom Energy Res Inst | Low-temperature metal vapor laser |
| CN103267210A (en) * | 2013-05-16 | 2013-08-28 | 燕山大学 | Six-freedom-degree parallel pointing platform |
| CN103972652A (en) * | 2014-05-06 | 2014-08-06 | 北京航天控制仪器研究所 | Servo mechanism for low-profile mobile satellite communication antenna |
| CN106594073A (en) * | 2017-01-04 | 2017-04-26 | 北京环境特性研究所 | Rough-precise two-stage two-shaft stabilizing mechanism based on magnetic bearing |
| CN106584433A (en) * | 2016-12-23 | 2017-04-26 | 哈尔滨工业大学深圳研究生院 | Three-freedom-degree parallel vibration isolation device |
| JP2017116861A (en) * | 2015-12-25 | 2017-06-29 | Hoya株式会社 | Imaging device |
| CN108016745A (en) * | 2017-12-09 | 2018-05-11 | 武汉红星杨科技有限公司 | A kind of optical instrument transport mounting base with isolating and protecting and two level vibration isolation |
| CN109774969A (en) * | 2019-01-25 | 2019-05-21 | 上海卫星工程研究所 | Based on the dynamic embedded semi-physical system followed of air floatation ball person who harbors criminals or contraband goods |
| CN111348209A (en) * | 2020-04-14 | 2020-06-30 | 成都英飞睿技术有限公司 | Investigation equipment and miniature two-shaft double-light photoelectric pod thereof |
| CN111692480A (en) * | 2020-06-18 | 2020-09-22 | 绵阳市恒通机电设备有限公司 | Small-sized precise digital electric control cradle head device |
-
2020
- 2020-11-05 CN CN202011223870.7A patent/CN112467384B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0758383A (en) * | 1993-08-16 | 1995-03-03 | Japan Atom Energy Res Inst | Low-temperature metal vapor laser |
| CN103267210A (en) * | 2013-05-16 | 2013-08-28 | 燕山大学 | Six-freedom-degree parallel pointing platform |
| CN103972652A (en) * | 2014-05-06 | 2014-08-06 | 北京航天控制仪器研究所 | Servo mechanism for low-profile mobile satellite communication antenna |
| JP2017116861A (en) * | 2015-12-25 | 2017-06-29 | Hoya株式会社 | Imaging device |
| CN106584433A (en) * | 2016-12-23 | 2017-04-26 | 哈尔滨工业大学深圳研究生院 | Three-freedom-degree parallel vibration isolation device |
| CN106594073A (en) * | 2017-01-04 | 2017-04-26 | 北京环境特性研究所 | Rough-precise two-stage two-shaft stabilizing mechanism based on magnetic bearing |
| CN108016745A (en) * | 2017-12-09 | 2018-05-11 | 武汉红星杨科技有限公司 | A kind of optical instrument transport mounting base with isolating and protecting and two level vibration isolation |
| CN109774969A (en) * | 2019-01-25 | 2019-05-21 | 上海卫星工程研究所 | Based on the dynamic embedded semi-physical system followed of air floatation ball person who harbors criminals or contraband goods |
| CN111348209A (en) * | 2020-04-14 | 2020-06-30 | 成都英飞睿技术有限公司 | Investigation equipment and miniature two-shaft double-light photoelectric pod thereof |
| CN111692480A (en) * | 2020-06-18 | 2020-09-22 | 绵阳市恒通机电设备有限公司 | Small-sized precise digital electric control cradle head device |
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| CN112467384A (en) | 2021-03-09 |
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