CN206564334U - An overall rotating transmission mechanism inside the antenna - Google Patents

Abstract

The utility model discloses inside whole pivoted drive mechanism of antenna includes worm wheel, worm, driving motor, this worm wheel and antenna reflecting plate fixed mounting, and worm wheel rotation axis is unanimous with the reflecting plate rotation axis, and this worm meshes the cooperation transmission with the worm wheel mutually, and worm rotation axis intersects with worm wheel rotation axis, and this driving motor is connected and the rotation of drive worm. The worm and gear has self-locking function, so that the whole structure can be self-locked. The transmission mechanism of the utility model can realize a larger transmission ratio through two-stage conversion, and meet the self-locking requirement; and because the worm wheel and the worm are relatively limited when the first limiting structure is contacted with the second limiting structure, the structure meets the requirement of mechanical zero return, and the zero position is simply found through the worm wheel and worm variation structure. The utility model discloses a technical scheme easy and simple to handle that provides, it is effectual, improved antenna angle modulation precision and intensity, easy and simple to handle, the commonality is good, can realize complete self-locking function, with mechanical zeroing, the cost is lower.

Description

An overall rotating transmission mechanism inside the antenna

【Technical field】

The utility model relates to the technical field of antenna manufacturing, in particular to a transmission mechanism for integral rotation inside the antenna.

【Background technique】

In the field of communication, it is necessary to adjust the horizontal angle rotation of the antenna. In the traditional overall rotation antenna, the antenna reflector needs to be rotated by plus or minus 30 degrees relative to the support. Usually, the rotating shaft is assembled on the reflector, and the transmission mechanism is fixed on the main support. , and even directly drive the rotation of the rotating shaft to realize the horizontal angle adjustment of the antenna. Due to the poor horizontal angle adjustment accuracy of this transmission form, complete self-locking cannot be realized (the self-locking mechanism such as a brake needs to be assembled to complete the self-locking function), and the transmission mechanism is prone to seizure, the overall strength of the antenna is poor, the cost is high, and the adjustment accuracy is high. low-level defects.

Therefore, it is necessary to provide a transmission mechanism with internal overall rotation including mechanical zeroing and high angle adjustment accuracy.

【Content of utility model】

The purpose of the utility model is to provide a transmission mechanism with high accuracy of angle adjustment for integral rotation inside the antenna.

For realizing the purpose of the utility model, the following technical solutions are provided:

The utility model provides a transmission mechanism with high angle adjustment precision for overall rotation inside the antenna, which improves the angle adjustment accuracy and strength of the antenna, is easy to operate, has good versatility, can realize a complete self-locking function, and returns to zero with a machine, and has low cost.

The technical scheme adopted by the utility model to solve its technical problems: provide a transmission mechanism for integral rotation inside the antenna, which includes a worm wheel, a worm, and a driving motor. The axes are the same, the worm is engaged with the worm wheel for transmission, the rotation axis of the worm intersects with the rotation axis of the worm wheel, and the drive motor is connected and drives the worm to rotate. Since the worm gear itself has a self-locking function, the whole structure can be self-locking.

Preferably, the drive shaft of the driving motor is connected to the motor gear, and the worm includes a worm gear and a worm body, the motor gear meshes with the worm gear, and the worm threads of the worm body mesh with the teeth of the worm wheel. Because the worm gear itself has a self-locking function, and because the worm gear and the motor gear have a certain transmission ratio, the whole structure can be self-locking, and the control accuracy and sensitivity are improved.

Preferably, the worm wheel is provided with a first limiting structure, and the worm body is provided with a second limiting structure matched therewith. Set the position of the first limit structure and the second limit structure when the worm wheel and the worm body are matched by angle calculation, so that the first limit structure and the second limit structure are relatively limited when they are in contact, so as to obtain the zero return position of the antenna .

Preferably, it further includes a reflective plate reinforcement, and the reflective plate, the reflective plate reinforcement and the worm wheel are fixedly installed. Both ends of the reflector are connected to the turbine through reflector reinforcements, making the rotation more sensitive and precise.

Preferably, it further includes a worm shaft and a transmission fixing seat. The worm rotates around the worm shaft and is mounted on the transmission fixing seat through the worm shaft.

Preferably, the driving motor is installed on the transmission fixing base.

Preferably, it further includes a main support and a bearing, the worm wheel is mounted on the main support through the bearing, and the worm wheel can rotate around the bearing.

Preferably, it further includes a motor positioning piece and a motor buckle, and the driving motor is positioned on the transmission fixing seat through the motor positioning piece and the motor buckle.

Preferably, it further includes a bottom plate, and the transmission fixing base is fixed on the bottom plate. There is no relative displacement between the bearing, the main support, the bottom plate, the transmission fixing seat and the worm shaft.

During the working process, the drive motor can drive the motor gear, and the motor gear is transmitted to the worm gear, so that the worm rotates around the worm shaft, and the worm drives the worm wheel, which can move in a circular motion around the bearing, and the rotation of the worm wheel drives the reflector to rotate synchronously, so that the reflector Do circular motion on the main support to realize the horizontal angle adjustment of the reflector, that is, the structure realizes the rotation requirement; and because the worm wheel and the worm itself are self-locking, the structure realizes the self-locking requirement; and because the worm wheel and the worm are in the first limit structure and The second limit structure is relatively limited when in contact, that is, the structure realizes the requirement of mechanical zeroing.

Compared with the prior art, the utility model has the following advantages:

The transmission mechanism of the utility model can achieve a larger transmission ratio through two-stage conversion; in addition, the meshing of the worm wheel and the worm realizes self-locking after positioning, which meets the self-locking requirements; The limit structure is relatively limited when in contact, that is, the structure realizes the requirement of mechanical zeroing, and the search for the zero position is simple through the worm gear variation structure. Therefore, the technical solution proposed by the utility model is easy to operate, has good effect, improves the accuracy and strength of antenna angle adjustment, is easy to operate, has good versatility, can realize a complete self-locking function, and has a low cost with mechanical zeroing.

【Description of drawings】

Fig. 1 is the main structure schematic diagram of the utility model transmission mechanism;

Fig. 2 is the side view of the transmission mechanism of the present utility model;

Fig. 3 is the explosion diagram of the transmission mechanism of the present utility model;

Fig. 4 is a schematic diagram of cooperation between the worm wheel and the worm of the transmission mechanism of the present invention.

【detailed description】

Please refer to Figures 1 to 4, the transmission mechanism with high angle adjustment precision for overall rotation inside the antenna of the utility model mainly includes a worm wheel 20, a worm screw 30, and a driving motor 40, the worm wheel 20 is fixedly installed with the antenna reflector 10, and the worm wheel 20 rotates The axis is consistent with the axis of rotation of the reflector 10. The drive shaft of the drive motor 40 is connected to the motor gear 41. The worm 30 includes a worm gear 310 and a worm body 320. The motor gear 41 is meshed with the worm gear 310. The worm gear of the worm body 320 The teeth of the thread mesh with the worm wheel 20 and cooperate with the transmission. The axis of rotation of the worm 30 intersects the axis of rotation of the worm wheel 20 . Because the worm gear itself has a self-locking function, and because the worm gear and the motor gear have a certain transmission ratio, the whole structure can be self-locking, and the control accuracy and sensitivity are improved.

Referring to FIG. 4 , the worm wheel 20 is provided with a first limiting structure 21 , and the end of the worm body 320 is provided with a second limiting structure 31 matched therewith. Set the position of the first limit structure and the second limit structure when the worm wheel and the worm body are matched by angle calculation, so that the first limit structure and the second limit structure are relatively limited when they are in contact, so as to obtain the zero return position of the antenna .

The reflection plate 10 is equipped with a reflection plate reinforcement 11, the reflection plate 10, the reflection plate reinforcement 11 and the worm wheel 20 are fixedly installed, the two ends of the reflection plate 10 are connected with the turbine 20 through the reflection plate reinforcement 11,

The worm 30 is installed on the transmission fixing seat 44 through the worm shaft 32 , and the worm positioning piece 33 is added for positioning and installation, and the worm wheel 30 rotates around the worm shaft 32 . The driving motor 40 is mounted on the transmission fixing seat 44 and positioned through the motor positioning piece 42 and the motor buckle 43 .

The worm wheel 20 is installed on the main support 50 through a bearing 61, and is provided with a bearing washer 62, and the worm wheel can rotate around the bearing.

The transmission fixing seat 44 is fixed on the bottom plate 70 . There is no relative displacement between the bearing 61, the main support 50, the base plate 70, the transmission fixing seat 44, and the worm shaft 32.

In the course of work, the driving motor 40 can drive the motor gear 41, and the motor gear 41 is transmitted to the worm gear 310, so that the worm 30 can rotate around the worm shaft 32, and the worm 30 can drive the worm wheel 20, and the worm wheel 20 can move in a circle around the bearing 61, and the worm wheel 20 The rotation drives the reflector 10 to rotate synchronously, so that the reflector 10 makes a circular motion on the main support 50 to realize the horizontal angle adjustment of the reflector, that is, the structure realizes the rotation requirement; and because the worm wheel and the worm itself are self-locking, the structure realizes self-locking Requirements; and because the worm wheel first limiting structure 21 is relatively limited when in contact with the worm second limiting structure 31, that is, the structure realizes the mechanical zeroing requirement.

The above descriptions are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereto. Any equivalent transformation based on the technical solution of the present utility model falls within the protection scope of the present utility model.

Claims (9)

1. a kind of transmission mechanism of inner antenna unitary rotation, it is characterised in that it includes worm gear, worm screw, motor, the snail Wheel is fixedly mounted with antenna-reflected plate, and worm gear wheel axis is consistent with reflecting plate pivot center, and the worm and wheel is meshed Coordinate transmission, worm screw pivot center intersects with worm gear wheel axis, motor connection and driving worm screw rotate.

2. transmission mechanism as claimed in claim 1, it is characterised in that the drive shaft connection motor gear of the motor, should Worm screw includes gear on worm and worm screw body, and the motor gear is meshed with gear on worm, the snail line and worm gear of the worm screw body Tooth be meshed cooperation.

3. transmission mechanism as claimed in claim 2, it is characterised in that the worm gear is provided with the first position limiting structure, the worm screw sheet Body is provided with the second matched position limiting structure.

4. transmission mechanism as claimed in claim 3, it is characterised in that it further comprises reflecting plate reinforcing member, the reflecting plate, Reflecting plate reinforcing member and worm gear are fixedly mounted.

5. transmission mechanism as claimed in claim 4, it is characterised in that it further comprises worm shaft, transmission fixed seat, the snail Bar is arranged in transmission fixed seat around worm shaft, and by worm shaft.

6. transmission mechanism as claimed in claim 5, it is characterised in that the motor is arranged in the transmission fixed seat.

7. transmission mechanism as claimed in claim 6, it is characterised in that it further comprises main bearing, bearing, the worm gear passes through Bearing is arranged on main bearing, and the worm gear can be rotated around bearing.

8. transmission mechanism as claimed in claim 7, it is characterised in that it further comprises motor spacer and motor buckle, The motor is by motor spacer and motor snaps into position in transmission fixed seat.

9. transmission mechanism as claimed in claim 8, it is characterised in that it further comprises bottom plate, the transmission fixed seat is fixed On bottom plate.