CN210984964U - Variable-speed-ratio self-locking antenna pitching driving device - Google Patents
Variable-speed-ratio self-locking antenna pitching driving device Download PDFInfo
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- CN210984964U CN210984964U CN201922213217.1U CN201922213217U CN210984964U CN 210984964 U CN210984964 U CN 210984964U CN 201922213217 U CN201922213217 U CN 201922213217U CN 210984964 U CN210984964 U CN 210984964U
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Abstract
The utility model provides a variable-speed-ratio self-locking antenna pitching driving device, which comprises a motor, a speed reducer, a transmission case, a worm shaft, a worm wheel shaft, a fork arm, an angle measuring device and a safety switch device; the motor drives the speed reducer to drive the worm to rotate, the worm wheel is driven, and therefore the worm wheel shaft and the fork arm are driven to rotate, and the antenna reflector is driven to perform pitching motion. The speed reducer mounting interface is designed outside the transmission case, so that the speed reducers of different models can be replaced conveniently, the transmission ratio of the whole transmission device can be changed by replacing the speed reducers with different speed ratios, and the speed change function of the driving device is realized. In addition, the worm gear transmission pair in the driving device not only has the advantages of large speed ratio and low noise, but also has the characteristic of self-locking at any position, and the self-locking function of the driving device is realized. And simultaneously, the utility model discloses in still having integrateed angle measurement device, safety switch device, can high accuracy, intelligent measurement antenna every single move angle, the protection antenna operates at safe angle within range.
Description
Technical Field
The utility model relates to an antenna every single move drive technical field specifically is a self-locking type antenna every single move drive arrangement of variable velocity ratio.
Background
The worm and gear transmission pair capable of being mechanically self-locked is widely applied to antenna pitching drive, the self-locking performance of the worm and gear transmission pair is generally utilized to serve as one ring of a transmission chain, and the transmission chain is generally composed of a motor, a worm and gear pair and a ball screw pair. The design has the advantages of simple structure, large transmission ratio and self-locking of any angle of the mechanism, and has the defects that the speed ratio of the mechanism and the pitching rotation angle form a trigonometric function relationship, so that the pitching motion of the antenna presents nonlinear change, the tracking target cannot be frequently switched, simultaneously, the stroke of the ball screw is long, the structure is relatively loose, the efficiency is very low, and the measured data and the motor rotation angle data are trigonometric function values of the linear motion and the pitching rotation of the screw because the pitching angle encoder is arranged on the pitching shaft, and a very large error exists.
Disclosure of Invention
For solving the problem that prior art exists, the utility model provides a from locking type antenna every single move drive arrangement of variable velocity ratio, the device can work the angle auto-lock wantonly, can change the velocity ratio according to the tracking target of difference moreover, and speed is linear change, has reduced the angle measurement error, has improved antenna every single move angle measurement precision.
The technical scheme of the utility model is that:
the variable-speed-ratio self-locking antenna pitching driving device is characterized in that: comprises a motor, a speed reducer, a transmission case, a worm shaft, a worm wheel shaft, a fork arm, an angle measuring device and a safety switch device;
the transmission case provides an installation space for the worm shaft, the worm wheel and the worm wheel shaft;
the worm shaft is arranged on the lower side in the transmission case through a bearing, the motor can drive the worm shaft to rotate through the speed reducer, and the motor and the speed reducer are arranged on the outer side of the case body of the transmission case;
the worm wheel is in a fan-shaped worm wheel form with a central hole, a worm wheel shaft is fixedly arranged in the central hole of the worm wheel, and the side edge of the worm wheel and the worm form a worm and gear transmission pair to transmit the rotation of the worm to the rotation of the worm wheel shaft;
the worm wheel shaft is arranged on the upper side in the transmission case through a bearing, and two ends of the worm wheel shaft extend out of the transmission case; two ends of the worm wheel shaft are respectively fixedly connected with the fork arms;
the fan-shaped side face of the worm wheel is fixedly provided with buffer rubber, the inner side face of the top of the transmission box is provided with a buffer collision block, and when the antenna rotates beyond a safe angle, the buffer rubber and the buffer collision block provide energy buffer for antenna collision together and provide mechanical limit for the antenna;
the yoke supports an antenna reflector;
the angle measuring device is arranged on the outer side wall of the transmission case, is coaxially connected with one end of the worm wheel shaft and can measure the rotation angle of the worm wheel;
the safety switch device is arranged on the outer side wall of the transmission case and is coaxially connected with the other end of the worm wheel shaft to form electric limit of the antenna.
Further preferably, the ratio-variable pitch driving apparatus for a self-locking antenna is characterized in that: the lifting device further comprises lifting ring screws, and the lifting ring screws are mounted at the top of the transmission box and used for lifting the whole driving device.
Further preferably, the ratio-variable pitch driving apparatus for a self-locking antenna is characterized in that: the motor adopts a servo motor, and the speed reducer adopts a planetary gear speed reducer structure.
Further preferably, the ratio-variable pitch driving apparatus for a self-locking antenna is characterized in that: the transmission case consists of a case cover and a case body which are connected by bolts; a top view window is designed at the top of the box cover, and a bottom view window is designed below the side of the box body and used for observing the lubrication condition between the kinematic pairs in the box body.
Further preferably, the ratio-variable pitch driving apparatus for a self-locking antenna is characterized in that: the worm shaft is an integral stepped shaft and sequentially comprises a left sealing section, a left bearing section, a left transition section, a worm section, a right transition section, a right bearing section and a right sealing section from left to right, wherein the bearing section is used for being matched with a transmission case bearing; the end face of the left sealing section is also provided with a hand wheel interface, and the end face of the right sealing section is provided with a speed reducer interface.
Further preferably, the ratio-variable pitch driving apparatus for a self-locking antenna is characterized in that: the worm wheel shaft adopts an integral stepped shaft and sequentially comprises a left fork arm section, a left sealing section, a left bearing section, a worm wheel section, a right bearing section, a right sealing section and a right fork arm section from left to right, wherein the bearing section is used for being matched with a transmission box bearing, and the fork arm section is used for being fixedly connected with a fork arm.
The variable-speed-ratio self-locking antenna pitching driving device is characterized in that the angle measuring device is composed of a first support, a second support, a pressing plate, an angle encoder, a corrugated pipe coupler, an angle input shaft and a first protection cover, the first support is an L-shaped structural member formed by welding steel plates, one end of the L-shaped structural member is fixedly connected with the outer side wall of a transmission box, the other end of the L-shaped structural member is fixedly connected with the second support and plays a role of supporting and connecting the angle measuring device, the second support is a L-shaped structural member formed by welding steel plates and is fixedly connected to the first support, the pressing plate is a plate provided with an inner spigot, the angle encoder plate is tightly connected to the second support, the corrugated pipe coupler is connected with the angle encoder and the angle input shaft, the angle input shaft is coaxially fixed at the end of a worm wheel shaft, and the first protection cover is fixedly installed.
The variable-speed-ratio self-locking antenna pitching driving device is further preferably characterized in that the safety switch device is composed of a third support, a fourth support, a small shaft, a collision block, a limit switch and a second protection cover, the third support is an L-shaped structural member formed by welding steel plates, one end of the L-shaped structural member is fixedly connected with the outer side face of a transmission case, the other end of the L-shaped structural member is fixedly connected with the fourth support, the fourth support is a L-shaped structural member formed by welding steel plates and fixedly connected to the third support, the small shaft is coaxially and fixedly connected to the end of a worm wheel shaft, the cam collision block is fixedly connected to the tail end of the small shaft and used for triggering the limit switch at a limit position, the limit switch is fixedly connected to the fourth support so that the antenna can be triggered by the cam collision block when pitching to the limit position, and the second protection cover.
Advantageous effects
The utility model provides a variable speed ratio's self-locking type antenna every single move drive arrangement, motor drive speed reducer drive worm rotate, and the worm wheel is driven to drive worm wheel shaft and yoke rotate, drive antenna reflector every single move motion. The speed reducer mounting interface is designed outside the transmission case, so that the speed reducers of different models can be replaced conveniently, the transmission ratio of the whole transmission device can be changed by replacing the speed reducers with different speed ratios, and the speed change function of the driving device is realized. In addition, the worm gear transmission pair in the driving device not only has the advantages of large speed ratio and low noise, but also has the characteristic of self-locking at any position, and the self-locking function of the driving device is realized. And simultaneously, the utility model discloses in still having integrateed angle measurement device, safety switch device, can high accuracy, intelligent measurement antenna every single move angle, the protection antenna operates at safe angle within range.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1: the variable speed ratio self-locking antenna pitching driving device is structurally schematic;
FIG. 2: the left side view of FIG. 1;
wherein: 1. a motor; 2. a speed reducer; 3. a transmission case; 4. a worm shaft; 5. a worm gear; 6. a worm gear shaft; 7. a cushion rubber; 8. buffering the collision block; 9. a yoke; 10. a lifting eye screw; 11. an angle measuring device; 12. a safety switch device;
FIG. 3: the structure of the transmission case is schematic;
wherein: 13. a box cover; 14. a box body;
FIG. 4: a worm shaft schematic;
FIG. 5: a worm gear schematic;
FIG. 6: a worm gear shaft schematic view;
FIG. 7: a schematic view of a yoke;
FIG. 8: a schematic view of an angle measuring device;
wherein: 15. a first bracket; 16. a second bracket; 17. pressing a plate; 18. an angle encoder; 19. a bellows coupling; 20. an angle input shaft; 21. a first protective cover;
FIG. 9: a safety switching device schematic;
wherein: 22. a third support; 23. a fourth bracket; 24. a small shaft; 25. a cam collision block; 26. a limit switch; 27. a second protective cover.
Detailed Description
The utility model provides a variable speed ratio self-locking antenna every single move drive arrangement, hit piece, yoke, eyebolt, angle measuring device and safety switch device including motor, speed reducer, transmission case, worm axle, worm wheel axle, cushion rubber, buffering.
The motor is a servo motor, and can perform servo speed regulation according to needs. The reducer adopts a planetary gear reducer, and has the advantages of compact structure, high precision, light weight and long service life. The transmission case is of a case body structure, consists of a case cover and a case body, and provides structural support and installation for the whole driving device. The worm and the worm wheel form a worm and gear transmission pair to realize the transmission of the force of the driving device. The worm wheel shaft is a rotating shaft of the worm wheel and also provides an installation interface for the fork arm. The buffer rubber has two positions, and the two positions are respectively fixed on the two side surfaces of the worm wheel in the rotation direction by screws. The buffering collision block is arranged inside the transmission case and on the lower surface of the case cover. When the antenna rotates beyond a safe angle, the buffer rubber and the buffer collision block provide energy buffer for collision of the antenna together, mechanical limit is provided for the antenna, and safety of the antenna is guaranteed. The fork arms are arranged at two ends of the worm wheel shaft and used for supporting the antenna reflector. The lifting ring screw is arranged at the top of the box cover and used for lifting the whole driving device. The angle measuring device is arranged on the outer side wall of the transmission case and is connected with the worm wheel shaft, so that the rotation angle of the worm wheel can be accurately measured, and the rotation angle of the antenna can be measured. The safety switch device is arranged on the other outer side wall of the transmission case and is connected with the worm wheel shaft, so that the electric limit of the antenna is formed, and the safe operation of the antenna is guaranteed.
When the driving device works, the motor drives the speed reducer to drive the worm to rotate, the worm wheel is driven, and therefore the worm wheel shaft and the fork arm are driven to rotate, and the antenna reflector is driven to perform pitching motion. The speed reducer mounting interface is designed outside the transmission case, so that the speed reducers of different models can be replaced conveniently, the transmission ratio of the whole transmission device can be changed by replacing the speed reducers with different speed ratios, and the speed change function of the driving device is realized. In addition, the worm gear transmission pair in the driving device not only has the advantages of large speed ratio and low noise, but also has the characteristic of self-locking at any position, and the self-locking function of the driving device is realized.
The present invention is described in detail below with reference to the attached drawings:
as shown in fig. 1 and 2, the variable-speed self-locking antenna pitching driving device comprises a motor, a speed reducer, a transmission case, a worm shaft, a worm wheel shaft, buffer rubber, a buffer collision block, a fork arm, a lifting ring screw, an angle measuring device, a safety switch device and the like. The speed reducer mounting interface is designed outside the transmission case, so that the speed reducers of different models can be conveniently replaced, the transmission ratio of the whole transmission device can be changed by replacing the speed reducers with different speed ratios, and the speed change function of the driving device is realized. The worm gear and worm transmission pair has the characteristic of self-locking at any position, and the self-locking function of the driving device is realized. When the driving device works, the motor drives the speed reducer to drive the worm to rotate, the worm wheel is driven, and therefore the worm wheel shaft and the fork arm are driven to rotate, and the antenna reflector is driven to perform pitching motion.
The motor adopts a servo motor, has high transmission precision, stable rotating speed, strong overload resistance and small heat emission, and provides driving force for the driving device.
The planetary gear reducer is adopted for speed reduction, and the planetary gear reducer has the advantages of compact structure, high precision, large transmission ratio range, mature and reliable technology, high serialization degree and convenient replacement.
The transmission case consists of a case cover and a case body which are connected by bolts. As shown in fig. 3. A top view window is designed at the top of the box cover, and a bottom view window is designed below the side of the box body, so that the lubrication condition between the kinematic pairs in the box body can be conveniently observed.
The worm shaft is an integral stepped shaft made of steel, each section of shaft has different functions, and as shown in fig. 4, the left sealing section, the left bearing section, the left transition section, the worm section, the right transition section, the right bearing section and the right sealing section are respectively arranged from left to right. Meanwhile, a hand wheel interface is designed at the left end of the worm shaft and used when the antenna is driven manually, and a speed reducer interface is designed at the right end and is conveniently connected with a speed reducer.
The worm wheel is made of steel and is of an integral structure, and a fan-shaped worm wheel is adopted, so that the pitching motion range of the antenna is met, and the size of the structure can be compressed as shown in fig. 5.
The worm wheel shaft is an integral stepped shaft made of steel, each section of shaft has different functions, and as shown in fig. 6, the left fork arm section, the left sealing section, the left bearing section, the worm wheel section, the right bearing section, the right sealing section and the right fork arm section are respectively arranged from left to right.
The buffer rubber is fixed on two side faces of the worm wheel in the rotation direction by using screws, is made of rubber materials, has certain elasticity and plays a role in absorbing impact energy.
The buffering collision block is welded on the top surface of the inner side of the box cover of the transmission box, and when an accident happens to the antenna, the buffering rubber collides with the antenna to prevent the antenna from continuously moving. The buffer rubber and the buffer collision block together form a mechanical limiting device of the antenna.
The fork arm is a structural part welded by steel plates and is arranged on the worm wheel shaft to play a role in supporting the antenna reflector.
Lifting bolts are installed at the top of the transmission case, so that the transmission case is convenient to hoist.
The angle measuring device comprises a first support, a second support, a pressure plate, an angle encoder, a corrugated pipe coupling, an angle input shaft and a first protective cover, as shown in figure 8, the angle measuring device is arranged on the outer side wall of a transmission case and is connected with a worm gear shaft, the actual rotation angle of the worm gear shaft is used as an input signal, and the pitch angle of the antenna is measured.
The safety switch device comprises a third support, a fourth support, a small shaft, a collision block, a limit switch and a second protective cover, as shown in figure 9, the safety switch device is arranged on the outer side wall of a transmission case and is connected with a worm gear shaft, when an antenna tilts to a limit position, the small shaft fixed at the end of the worm gear shaft drives a cam collision block to rotate to the limit position, the limit switch is triggered, the limit switch returns a control signal, and the pitching drive of the antenna is cut off, so that the antenna is prevented from rotating beyond a safety angle.
The variable speed ratio self-locking antenna pitching driving device has the working principle that: when the antenna pitching device works, the motor drives the speed reducer to rotate, the worm gear is driven to rotate, and the pitching motion of the antenna is completed. According to different requirements, the speed reducers with different speed ratios are replaced, and the speed change function can be realized. In addition, the worm gear transmission pair in the driving device not only has the advantages of large speed ratio and low noise, but also has the characteristic of self-locking at any position, and the self-locking function of the driving device is realized. Meanwhile, the device also integrates an angle measuring device, a safety switch device and the like, can measure the pitching angle of the antenna with high precision and intelligence, and protects the antenna to operate within a safety angle range.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (8)
1. A variable-speed-ratio self-locking antenna pitching driving device is characterized in that: comprises a motor, a speed reducer, a transmission case, a worm shaft, a worm wheel shaft, a fork arm, an angle measuring device and a safety switch device;
the transmission case provides an installation space for the worm shaft, the worm wheel and the worm wheel shaft;
the worm shaft is arranged on the lower side in the transmission case through a bearing, the motor can drive the worm shaft to rotate through the speed reducer, and the motor and the speed reducer are arranged on the outer side of the case body of the transmission case;
the worm wheel is in a fan-shaped worm wheel form with a central hole, a worm wheel shaft is fixedly arranged in the central hole of the worm wheel, and the side edge of the worm wheel and the worm form a worm and gear transmission pair to transmit the rotation of the worm to the rotation of the worm wheel shaft;
the worm wheel shaft is arranged on the upper side in the transmission case through a bearing, and two ends of the worm wheel shaft extend out of the transmission case; two ends of the worm wheel shaft are respectively fixedly connected with the fork arms;
the fan-shaped side face of the worm wheel is fixedly provided with buffer rubber, the inner side face of the top of the transmission box is provided with a buffer collision block, and when the antenna rotates beyond a safe angle, the buffer rubber and the buffer collision block provide energy buffer for antenna collision together and provide mechanical limit for the antenna;
the yoke supports an antenna reflector;
the angle measuring device is arranged on the outer side wall of the transmission case, is coaxially connected with one end of the worm wheel shaft and can measure the rotation angle of the worm wheel;
the safety switch device is arranged on the outer side wall of the transmission case and is coaxially connected with the other end of the worm wheel shaft to form electric limit of the antenna.
2. The apparatus of claim 1, wherein the ratio-variable pitch drive apparatus comprises: the lifting device further comprises lifting ring screws, and the lifting ring screws are mounted at the top of the transmission box and used for lifting the whole driving device.
3. The apparatus of claim 1, wherein the ratio-variable pitch drive apparatus comprises: the motor adopts a servo motor, and the speed reducer adopts a planetary gear speed reducer structure.
4. The apparatus of claim 1, wherein the ratio-variable pitch drive apparatus comprises: the transmission case consists of a case cover and a case body which are connected by bolts; a top view window is designed at the top of the box cover, and a bottom view window is designed below the side of the box body and used for observing the lubrication condition between the kinematic pairs in the box body.
5. The apparatus of claim 1, wherein the ratio-variable pitch drive apparatus comprises: the worm shaft is an integral stepped shaft and sequentially comprises a left sealing section, a left bearing section, a left transition section, a worm section, a right transition section, a right bearing section and a right sealing section from left to right, wherein the bearing section is used for being matched with a transmission case bearing; the end face of the left sealing section is also provided with a hand wheel interface, and the end face of the right sealing section is provided with a speed reducer interface.
6. The apparatus of claim 1, wherein the ratio-variable pitch drive apparatus comprises: the worm wheel shaft adopts an integral stepped shaft and sequentially comprises a left fork arm section, a left sealing section, a left bearing section, a worm wheel section, a right bearing section, a right sealing section and a right fork arm section from left to right, wherein the bearing section is used for being matched with a transmission box bearing, and the fork arm section is used for being fixedly connected with a fork arm.
7. The variable-ratio self-locking antenna pitching driving device is characterized in that the angle measuring device comprises a first support, a second support, a pressure plate, an angle encoder, a corrugated pipe coupler, an angle input shaft and a first protection cover, the first support is an L-shaped structural member formed by welding steel plates, one end of the L-shaped structural member is fixedly connected with the outer side wall of a transmission box, the other end of the L-shaped structural member is fixedly connected with the second support and plays a role of supporting and connecting the angle measuring device, the second support is a L-shaped structural member formed by welding steel plates and is fixedly connected to the first support, the pressure plate is a plate provided with an inner seam allowance and is used for tightly pressing and connecting the angle encoder plate to the second support, the corrugated pipe coupler is connected with the angle encoder and the angle input shaft, the angle input shaft is coaxially fixed at the end of a worm wheel shaft, and the first protection cover.
8. The variable-ratio self-locking antenna pitching driving device is characterized in that the safety switch device comprises a third support, a fourth support, a small shaft, a collision block, a limit switch and a second protection cover, the third support is an L-shaped structural member formed by welding steel plates, one end of the L-shaped structural member is fixedly connected with the outer side face of the transmission case, the other end of the L-shaped structural member is fixedly connected with the fourth support, the fourth support is a L-shaped structural member formed by welding steel plates and fixedly connected to the third support, the small shaft is coaxially and fixedly connected to the shaft end of a worm wheel shaft, the tail end of the small shaft is fixedly connected with the cam collision block and used for triggering the limit switch at a limit position, the limit switch is fixedly connected to the fourth support and used for triggering the cam collision block when the antenna is pitched to the limit position, and the second protection cover is fixedly arranged on.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922213217.1U CN210984964U (en) | 2019-12-11 | 2019-12-11 | Variable-speed-ratio self-locking antenna pitching driving device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922213217.1U CN210984964U (en) | 2019-12-11 | 2019-12-11 | Variable-speed-ratio self-locking antenna pitching driving device |
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| CN210984964U true CN210984964U (en) | 2020-07-10 |
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| CN201922213217.1U Active CN210984964U (en) | 2019-12-11 | 2019-12-11 | Variable-speed-ratio self-locking antenna pitching driving device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803162A (en) * | 2021-01-27 | 2021-05-14 | 杭州电子科技大学 | Antenna self-locking and unloading integrated device and adjusting method thereof |
| CN113775673A (en) * | 2021-08-31 | 2021-12-10 | 中国科学院西安光学精密机械研究所 | Theodolite anti-runaway electromechanical protection system |
-
2019
- 2019-12-11 CN CN201922213217.1U patent/CN210984964U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112803162A (en) * | 2021-01-27 | 2021-05-14 | 杭州电子科技大学 | Antenna self-locking and unloading integrated device and adjusting method thereof |
| CN112803162B (en) * | 2021-01-27 | 2022-08-26 | 杭州电子科技大学 | Antenna self-locking and unloading integrated device and adjusting method thereof |
| CN113775673A (en) * | 2021-08-31 | 2021-12-10 | 中国科学院西安光学精密机械研究所 | Theodolite anti-runaway electromechanical protection system |
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