CN204140820U - The Double-gear structure compensated for antenna gear transmission clearance and communication in moving system - Google Patents
The Double-gear structure compensated for antenna gear transmission clearance and communication in moving system Download PDFInfo
- Publication number
- CN204140820U CN204140820U CN201420363245.6U CN201420363245U CN204140820U CN 204140820 U CN204140820 U CN 204140820U CN 201420363245 U CN201420363245 U CN 201420363245U CN 204140820 U CN204140820 U CN 204140820U
- Authority
- CN
- China
- Prior art keywords
- gear
- double
- teeth
- fitting groove
- structure according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004891 communication Methods 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 title abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Gears, Cams (AREA)
Abstract
Antenna gear transmission clearance for communication in moving system compensates, and the utility model provides a kind of Double-gear structure, and for engaging with a mate gear, this Double-gear structure comprises: first gear with multiple first gear teeth; Have the second gear of multiple second gear teeth, the second gear is stacked on the first gear and described multiple first gear teeth and described multiple second gear teeth can be alignd one by one, and the first gear and the second gear can relative to each other rotate; And biasing mechanism, for at least one in bias voltage first gear in the state that engages with mate gear in this Double-gear structure and the second gear, with the circumferentially generation relative displacement at gear between the first gear and the second gear, two of corresponding gear teeth of first gear teeth and second gear teeth and the mate gear contrary flank of tooth are always kept in touch respectively.The utility model additionally provides a kind of communication in moving system comprising this Double-gear structure.
Description
Technical field
The utility model relates to satellite communication antena technology, more specifically, relates to a kind of Double-gear structure compensated for the antenna gear transmission clearance in communication in moving system, and comprises the communication in moving system of this Double-gear structure.
Background technique
Communication in moving system is the abbreviation of " the satellite ground station communications system in mobile ".By communication in moving system, the carrier of the movements such as vehicle, steamer, aircraft can the platform such as real-time tracking satellite in movement process, transmit the multimedia messages such as voice, data, image incessantly, the needs of the Multimedia Communication under various military-civil emergency communication and mobile condition can be met.Communication in moving system solves the moving carriers such as various vehicle, steamer well and passes through synchronous satellite at the volley, constantly transmit in real time the difficulty of the multimedia messages such as dynamic video image, fax of voice, data, high-resolution, it is the once great breakthrough of the communications field, be the present satellites communications field in great demand, develop application rapidly, have development prospect very widely in the army and the people two fields.
Because communication in moving system needs real-time tracking satellite on the carrier of movement, in its tracking/position fixing process, exist for certain satellite, the state that even more drive mechanism clockwise and anticlockwise scans repeatedly in small angle in antenna half-power angle.Due to the existence of this state, very high requirement is proposed to drive gap, if excesssive gap, then there will be antenna shake in scanning process, even can not the situation of normal receive data.
Model utility content
Consider the problems referred to above that communication in moving system exists, of the present utility modelly propose a kind of gear transmission structure and comprise the communication in moving system in the movement of this gear transmission structure, avoid antenna to shake in scanning process.
According to an aspect of the present utility model, provide a kind of Double-gear structure, for engaging with a mate gear, this Double-gear structure comprises:
There is the first gear of multiple first gear teeth;
Have the second gear of multiple second gear teeth, the second gear is stacked on the first gear and described multiple first gear teeth and described multiple second gear teeth can be alignd one by one, and the first gear and the second gear can relative to each other rotate; With
Biasing mechanism, for at least one in bias voltage first gear in the state that engages with mate gear in this Double-gear structure and the second gear, to drive the first gear and the second gear in the circumferentially generation relative displacement of gear, two of corresponding gear teeth of first gear teeth and second gear teeth and the mate gear contrary flank of tooth are always kept in touch respectively.
In above-mentioned Double-gear structure, biasing mechanism can comprise at least one Compress Spring.
In above-mentioned Double-gear structure, at least one Compress Spring described can be positioned at least one in the first gear and the second gear, to apply to both the first gear and the second gear the pretightening force producing described relative displacement.
In above-mentioned Double-gear structure, the first gear can have the first surface in the face of the second gear, and on described first surface, be formed with at least one the first spring fitting groove for placing at least one Compress Spring described.
In above-mentioned Double-gear structure, second gear can have second in the face of the first gear, and position corresponding with at least one the first spring fitting groove described on described second is formed with at least one the second spring fitting groove for placing at least one Compress Spring described.
In above-mentioned Double-gear structure, the first spring fitting groove and corresponding second spring fitting groove can surround a corresponding Compress Spring.
In above-mentioned Double-gear structure, the first spring fitting groove and the second spring fitting groove can in the circumferentially extensions of gear.
In above-mentioned Double-gear structure, described first surface can be formed at least one first retainer, described second can be formed at least one second retainer, and the contrary two ends of each Compress Spring can abut with first retainer and second retainer respectively, to be compressed under the state producing described relative displacement.
In above-mentioned Double-gear structure, described first gear and the second gear can be respectively equipped with multiple mounting hole, described first gear and the second gear combine by two corresponding mounting holes that multiple fastening piece can be each passed through the first gear and the second gear, wherein, at least one in two corresponding mounting holes of the first gear and the second gear can in the circumferentially extension of corresponding gear to allow the first gear and the second gear relative movement.
According to another aspect of the present utility model, provide a kind of communication in moving system, comprising:
Moving carrier;
Be arranged on the orientation tracking/positioning motor on moving carrier, this orientation tracking/positioning motor comprises motor gear;
The actuation gear engaged with motor gear;
By the antenna holder of driving gear drives; With
Be fixed on the antenna assembly on antenna holder, wherein orientation tracking/positioning motor is by engagement driven antenna device with antenna holder together with forward and the orientation that rotate backward with tracking satellite of motor gear with actuation gear, and
One in motor gear and actuation gear is above-mentioned Double-gear structure.
After consulting following detailed embodiment and relevant diagram and claim, the person of readding can understand other object of the present utility model, feature and advantage better.
Accompanying drawing explanation
Consult follow-up diagram and describe and can understand principle of the present utility model better.Wen Zhongwei arranges in detail and nonrestrictive embodiment then please refer to the description of this subsequent figures.Element in diagram might not meet ratio, but depicts principle of the present utility model in the mode emphasized.In the accompanying drawings:
Fig. 1 is the perspective view of the Double-gear structure illustrated according to a kind of exemplary embodiment of the present utility model;
Fig. 2 is the exploded view that the Double-gear structure shown in Fig. 1 is shown;
Fig. 3 is the perspective view of the first gear that the Double-gear structure shown in Fig. 1 is shown;
Fig. 4 is the perspective view of the second gear that the Double-gear structure shown in Fig. 1 is shown;
Fig. 5 is the sectional view that the Double-gear structure shown in Fig. 1 is shown; And
Fig. 6 is the perspective view of the example that the application of Double-gear structure in communication in moving system shown in Fig. 1 is shown.
Embodiment
By specific embodiment, and by reference to the accompanying drawings, the technical solution of the utility model will be further described below.In this manual, same or analogous parts are indicated by same or similar drawing reference numeral.The explanation of following reference accompanying drawing to each embodiment of the present utility model is intended to set forth general plotting of the present utility model, and not should be understood to one restriction of the present utility model.
It is the exploded view that the Double-gear structure shown in Fig. 1 is shown that Fig. 1 shows according to the Double-gear structure 100, Fig. 2 of a kind of exemplary embodiment of the present utility model.The transmission of engaging with a mate gear to realize eliminating gap between gear is may be used for according to Double-gear structure of the present utility model.
In the following detailed description, for ease of explaining, many concrete details have been set forth to provide the complete understanding to this disclosure embodiment.But significantly, one or more embodiment also can be implemented when not having these details.In other cases, known construction and device diagrammatically embodies to simplify accompanying drawing.
As illustrated in fig. 1 and 2, Double-gear structure 100 comprises first gear 110 with multiple first gear teeth 111 and second gear 120 with multiple second gear teeth 121.Second gear 120 is stacked on the first gear 110 and first gear teeth 111 and second gear teeth 121 can be alignd one by one.For this reason, the second gear 120 can have the gear teeth of equal number and identical external diameter with the first gear 110.As will be described, the first gear 110 and the second gear 120 are configured to relative to each other rotate, and to produce suitable dislocation displacement, thus realize the tight mesh with mate gear.
Double-gear structure of the present utility model also comprises biasing mechanism, it is at least one in bias voltage first gear in the state that engages with mate gear in this Double-gear structure and the second gear, to drive the first gear and the second gear in the circumferentially generation relative displacement of gear, two of corresponding gear teeth of first gear teeth and second gear teeth and the mate gear contrary flank of tooth are always kept in touch respectively.
In one example, as shown in Figure 2, biasing mechanism can comprise at least one spring 140, as Compress Spring, it is positioned at least one in the first gear 110 and the second gear 120, such as compressed, to apply to both the first gear and the second gear the pretightening force producing aforementioned relative displacement.In the structure illustrated in figs 2 and 3, the first gear 110 has the first surface 112 in the face of the second gear 120, first surface 112 is formed at least one first spring fitting groove 114, in each spring fitting groove 114, places corresponding spring 140.
As shown in Figures 2 and 4, the second gear 120 has the second face 122 in the face of the first gear 110, and the second face 122 can be formed at least one the second spring fitting groove 124 for placing spring 140.Second spring fitting groove 124 forms position corresponding with the first spring fitting groove 114 on the second surface, to hold corresponding spring 140 at least in part, thus the first spring fitting groove 114 and corresponding second spring fitting groove 124 surround and hold a corresponding spring 140.In a kind of exemplary embodiment, first spring fitting groove 114 and the second spring fitting groove 124 are in the circumferentially extension of gear, make to be contained in spring 140 wherein and circumferentially can apply pretightening force to gear at gear, this pretightening force makes two gears relatively rotate, to form dislocation displacement betwixt.
In embodiment of the present utility model, spring 140 can be compressed to produce pretightening force.As in Figure 3-5, first surface 112 can be formed at least one first retainer 113, second face 122 is formed with at least one second retainer 123, and the contrary two ends 141,142 of each spring 140 abut with first retainer 113 and second retainer 123 respectively.Such as, the contrary two ends 141,142 of each spring 140 contact with the bearing surface 125 of the second retainer 123 with the bearing surface 115 of the first retainer 113 respectively.Spring 140 toward each other, is clipped in therebetween by bearing surface 115 and bearing surface 125, make spring can in spring fitting groove 114 and 124 telescopic slide.Thus, under the state that the second gear 120 is stacked on the first gear 110, by making these two gear relative dislocation rotate, by two retainers, spring 140 is compressed.Retainer 113,123 can be block form, and the circumferencial direction be shown as in the drawings along gear extends, to stop that the spring by compressing ejects.
As shown in Fig. 1,2 and 4, first gear 110 and the second gear 120 are respectively equipped with multiple mounting hole 116 and 126, and described first gear and the second gear combine by two corresponding mounting holes that multiple fastening piece 130 is each passed through the first gear and the second gear.In one example, each fastening piece 130 can comprise the combination of screw and nut.First gear 110 and the second gear 120 are formed with screw mounting hole 116 and 126 respectively, and screw is screwed in screw mounting hole, and is pressed together by two gears by pad and nut, but these two gears can relatively rotate under suitable External Force Acting.According to an example, at least one the circumferentially extension at gear in two corresponding mounting holes 116 and 126 of the first gear 110 and the second gear 120 is to allow the first gear and the second gear relative movement.As Figure 1-4, screw mounting hole 116 is formed in the first surface 112 of the first gear, and screw mounting hole 126 is formed as running through the second gear 120, so that screw can from passing screw mounting hole 126 above and being screwed into screw mounting hole 116.The inwall of screw thread 126 can be formed the structure 127 for placing nut pad, as flange, thus nut can be pressed against on pad and to tighten.In the illustrated example of Fig. 2-3, screw mounting hole 116 is formed in the first spring fitting groove 114, and screw mounting hole 126 is formed in the second retainer 123, but significantly, these screw mounting holes can be formed in any suitable position fixing two gears.
Fig. 6 shows an example of the application of Double-gear structure of the present utility model in communication in moving system.As shown in the figure, a kind of exemplary communication in moving system can comprise moving carrier 300, and orientation tracking/positioning motor 200 and antenna holder 500 are arranged on moving carrier 300, and antenna assembly 400 is fixed on antenna holder 500.Orientation tracking/positioning motor 200 comprises motor gear 201, it engages with the actuation gear rotated for driven antenna support 500 and antenna assembly 400, thus orientation tracking/positioning motor 200 is under control of the control system by engagement driven antenna device with antenna holder together with forward and the orientation that rotate backward with tracking satellite of motor gear 201 with actuation gear.According to embodiment of the present utility model, a gear for transmission can adopt Double-gear structure of the present utility model.In the example shown in the series of figures, the actuation gear rotated for driven antenna support 500 and antenna assembly 400 adopts Double-gear structure 100 of the present utility model.In this case, motor gear 201 engages with actuation gear 100, can seamlessly clockwise and anticlockwise transmission.
Below in conjunction with accompanying drawing, the assembly process of Double-gear structure of the present utility model in communication in moving system is described.First, screw is screwed in the screw mounting hole 116 of the first gear 110, spring is placed in the spring fitting groove 114 of the first gear 110, afterwards the second gear 120 is stacked in above the first gear 110, screw is allowed to pass the threaded mounting hole 126 of the second gear 120, then on screw, overlap Upper gasket and nut, nut, by suitably fastening but need not tighten completely, ensures can produce alternate displacement between two gears under external force.Double-gear structure 100 after assembling as shown in Figure 1.
After Double-gear structure 100 assembles, the first gear 110 is arranged on moving carrier 300, as on casing, and to follow the tracks of with orientation/motor gear 201 of positioning motor 200 engages.Before the orientation tracking/positioning motor 200 of final fixed installation translator gear 201, make the first gear 110 and the second gear 120 relatively rotate the staggered relative displacement producing respective amount, thus the spring 140 that compression is positioned at therebetween is to produce pretightening force.When displacement amount and therefore pretightening force reaches requirement, moment of torsion as pretightening force generation is not less than the driving torque of orientation tracking/positioning motor 200, and during the alignment of the gear teeth of the first gear 110 and the second gear 120, fixedly mounted orientation tracking/positioning motor 200, motor gear 201 engages under the pretightening force of spring 140 with Double-gear structure 100 thus.
The spring 140 being in compressive state makes to there is a micro-displacement all the time between the first gear 110 and the corresponding gear teeth of the second gear 120, the flank of tooth making first gear teeth 111 of the first gear 110 contrary to two of corresponding gear teeth of motor gear 201 with corresponding second gear teeth 121 of the second gear 120 always keeps in touch respectively, thus eliminates the backlass between gearing motor gear 201 and Double-gear structure 100 in transmission process.Further, even if arbitrary gear weares and teares, the gap produced also can offset by this Double-gear structure of the present utility model.Therefore, adopt Double-gear structure of the present utility model, eliminate the gear transmission clearance between driving mechanism, and then antenna can be avoided to shake due to this gap in clockwise and anticlockwise scan period when being used in communication in moving system, improve communication in moving system to the tracking of the communications platforms such as satellite and positioning precision.
The above embodiments and accompanying drawing only have recapitulative understanding for those skilled in the art for variant embodiment of the present utility model.The description of integrity is done in those diagrams and explanation also undesired to all elements utilized in the equipment and system of structure described herein or method and feature.By reading specification of the present utility model, those skilled in the art, by more understanding other embodiments many of the present utility model, will be derived from the content of disclosure of the present utility model.When not departing from the utility model protection domain, the utility model can carry out displacement and the change of structure and logic.In addition, accompanying drawing of the present utility model is only for illustrating but not drawing in proportion.Some part in accompanying drawing may be exaggerated to emphasize, and other parts may by simply.Therefore, specification of the present utility model and accompanying drawing should be considered as describing and non-limiting matter, and are limited by the protection domain by claim hereinafter.It should be noted that word " comprises " and do not get rid of other element or step, word "a" or "an" is not got rid of multiple.In addition, any element numbers of claim should not be construed as restriction scope of the present utility model.
Claims (10)
1. a Double-gear structure (100), for engaging with a mate gear (201), is characterized in that, this Double-gear structure comprises:
There is first gear (110) of multiple first gear teeth (111);
There is second gear (120) of multiple second gear teeth (121), second gear is stacked on the first gear and described multiple first gear teeth and described multiple second gear teeth can be alignd one by one, and the first gear and the second gear can relative to each other rotate; With
Biasing mechanism, for at least one in bias voltage first gear in the state that engages with mate gear in this Double-gear structure and the second gear, to drive the first gear and the second gear in the circumferentially generation relative displacement of gear, two of corresponding gear teeth of first gear teeth and second gear teeth and the mate gear contrary flank of tooth are always kept in touch respectively.
2. Double-gear structure according to claim 1, is characterized in that, biasing mechanism comprises at least one Compress Spring (140).
3. Double-gear structure according to claim 2, is characterized in that, at least one Compress Spring described is positioned at least one in the first gear and the second gear, to apply to both the first gear and the second gear the pretightening force producing described relative displacement.
4. Double-gear structure according to claim 3, it is characterized in that, first gear has the first surface (112) in the face of the second gear, and on described first surface, be formed with at least one the first spring fitting groove (114) for placing at least one Compress Spring described.
5. Double-gear structure according to claim 4, it is characterized in that, second gear has second (122) in the face of the first gear, and position corresponding with at least one the first spring fitting groove described on described second is formed with at least one the second spring fitting groove (124) for placing at least one Compress Spring described.
6. Double-gear structure according to claim 5, is characterized in that, the first spring fitting groove and corresponding second spring fitting groove surround a corresponding Compress Spring.
7. Double-gear structure according to claim 5, is characterized in that, the first spring fitting groove and the second spring fitting groove are in the circumferentially extension of gear.
8. the Double-gear structure according to any one of claim 5-7, it is characterized in that, described first surface is formed at least one first retainer (113), described second is formed at least one second retainer (123), and the contrary two ends of each Compress Spring abut with first retainer and second retainer respectively, to be compressed under the state producing described relative displacement.
9. the Double-gear structure according to any one of claim 2-7, it is characterized in that, described first gear and the second gear are respectively equipped with multiple mounting hole, described first gear and the second gear combine by two corresponding mounting holes that multiple fastening piece is each passed through the first gear and the second gear
Wherein, at least one the circumferentially extension at corresponding gear in two corresponding mounting holes of the first gear and the second gear is to allow the first gear and the second gear relative movement.
10. a communication in moving system, is characterized in that, comprising:
Moving carrier (300);
Be arranged on the orientation tracking/positioning motor (200) on moving carrier, this orientation tracking/positioning motor comprises motor gear (201);
The actuation gear (100) engaged with motor gear;
By the antenna holder (500) of driving gear drives; With
Be fixed on the antenna assembly (400) on antenna holder, wherein orientation tracking/positioning motor is by engagement driven antenna device with antenna holder together with forward and the orientation that rotate backward with tracking satellite of motor gear with actuation gear, and
One in motor gear and actuation gear is the Double-gear structure according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363245.6U CN204140820U (en) | 2014-07-02 | 2014-07-02 | The Double-gear structure compensated for antenna gear transmission clearance and communication in moving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420363245.6U CN204140820U (en) | 2014-07-02 | 2014-07-02 | The Double-gear structure compensated for antenna gear transmission clearance and communication in moving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140820U true CN204140820U (en) | 2015-02-04 |
Family
ID=52417505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420363245.6U Expired - Lifetime CN204140820U (en) | 2014-07-02 | 2014-07-02 | The Double-gear structure compensated for antenna gear transmission clearance and communication in moving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140820U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132115A (en) * | 2014-07-02 | 2014-11-05 | 中广联合移动电视系统有限公司 | Double-gear structure for antenna gear clearance compensation and communication on-the-move system |
| CN105042033A (en) * | 2015-08-11 | 2015-11-11 | 中国航空工业集团公司西安飞机设计研究所 | Gear mechanism and manufacturing method thereof |
| CN107191573A (en) * | 2017-07-11 | 2017-09-22 | 广东金兴机械股份有限公司 | A kind of gear mechanism for being capable of automatic regulating gap |
| WO2021128620A1 (en) * | 2019-12-24 | 2021-07-01 | 广州市浩洋电子股份有限公司 | Stage lamp using gears to drive lamp head to rotate |
| CN117961821A (en) * | 2024-03-29 | 2024-05-03 | 南昌三瑞智能科技股份有限公司 | Frock is used in assembly between gear |
-
2014
- 2014-07-02 CN CN201420363245.6U patent/CN204140820U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132115A (en) * | 2014-07-02 | 2014-11-05 | 中广联合移动电视系统有限公司 | Double-gear structure for antenna gear clearance compensation and communication on-the-move system |
| CN105042033A (en) * | 2015-08-11 | 2015-11-11 | 中国航空工业集团公司西安飞机设计研究所 | Gear mechanism and manufacturing method thereof |
| CN107191573A (en) * | 2017-07-11 | 2017-09-22 | 广东金兴机械股份有限公司 | A kind of gear mechanism for being capable of automatic regulating gap |
| WO2021128620A1 (en) * | 2019-12-24 | 2021-07-01 | 广州市浩洋电子股份有限公司 | Stage lamp using gears to drive lamp head to rotate |
| CN117961821A (en) * | 2024-03-29 | 2024-05-03 | 南昌三瑞智能科技股份有限公司 | Frock is used in assembly between gear |
| CN117961821B (en) * | 2024-03-29 | 2024-06-07 | 南昌三瑞智能科技股份有限公司 | Frock is used in assembly between gear |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204140820U (en) | The Double-gear structure compensated for antenna gear transmission clearance and communication in moving system | |
| CN104132115A (en) | Double-gear structure for antenna gear clearance compensation and communication on-the-move system | |
| CN110043554A (en) | A kind of coaxial 190 degree of rotating mechanisms that take all of of flexible screen application | |
| WO2007103889A3 (en) | System and method for providing error resilience, random access and rate control in scalable video communications | |
| CN112469921B (en) | Damping device | |
| KR20190035004A (en) | altitude and azimuth angle concurrent driving type solar tracking apparatus | |
| US20220082154A1 (en) | Planetary gear without backlash | |
| CN103295729A (en) | Solenoid with a plug-in and turn fastening | |
| Hammad et al. | Adaptive control of solar tracking system | |
| WO2014144242A3 (en) | Continuously variable transmission having a periodic displacement waveform with a constant velocity portion | |
| CN105404132A (en) | Timepiece | |
| CN106723687B (en) | Cargo binds restraint device | |
| WO2018176341A1 (en) | Video transmission method, reception method, system, and unmanned aerial vehicle | |
| EP2573330A3 (en) | Compliant mounting of an axial face seal assembly | |
| CN105804592A (en) | Transmission device for translation door and window | |
| CN109931342B (en) | System and method for a bi-directional clutch with predetermined interference | |
| CN102413326B (en) | Video coding and decoding method and device | |
| CN209638262U (en) | Tracker transmission shaft connecting structure | |
| CN102720815B (en) | Cam mechanism capable of eliminating cam groove and roller clearance | |
| CN104061229A (en) | Synchronous movement device for double-rotating-shaft system | |
| CN209309158U (en) | Fuel pump actuator torque-transmitting mechanisms | |
| CN102720827A (en) | Backlash eliminating device of heliostat tracking system | |
| CN205136484U (en) | Drive shaft can mechanism of two -way rotation in order to drive driven shaft unidirectional rotating | |
| CN103884361B (en) | A kind of receiver with safe sample range regulatory function | |
| CN202661882U (en) | Transmission apparatus for single-shaft-type sun-chasing platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |