WO2018196428A1

WO2018196428A1 - Bidirectional power output linkage device and antenna downtilt angle control device

Info

Publication number: WO2018196428A1
Application number: PCT/CN2017/119476
Authority: WO
Inventors: 黄潮生; 马泽峰; 薛锋章; 游建军; 段红彬; 刘培涛
Original assignee: 京信通信系统（中国）有限公司; 京信通信技术(广州)有限公司; 京信通信系统（广州）有限公司; 天津京信通信系统有限公司
Priority date: 2017-04-25
Filing date: 2017-12-28
Publication date: 2018-11-01
Also published as: CN106895115A; CN106895115B

Abstract

A bidirectional power output linkage device and an antenna downtilt angle control device, the bidirectional power output linkage device comprising: an input shaft (110); a first transmission mechanism (200), the first transmission mechanism (200) comprising a first inner gear ring (210), a first gear (220) which is coaxial with the first inner gear ring (210), a second gear (230) which forms an acting connection with the first gear (220), and a first planet carrier (240); a second transmission mechanism (300), the second transmission mechanism (300) comprising a first rotating member (310) which is fixedly in transmission connection with the first planet carrier (240), and a second rotating member (320) which forms an acting connection with the first rotating member (310); a third transmission mechanism (400), the third transmission mechanism (400) comprising a second planet carrier (410) which is mounted on the second rotating member (320), a third gear (420) which is mounted on the input shaft (110), and a fourth gear (430) which meshes with the third gear (420); a one-way control mechanism, which controls the rotation direction of the first rotating member (310) to be opposite to the rotation direction of the second rotating member (320).

Description

Bidirectional power output linkage device and antenna downtilt angle control device

Technical field

The present invention relates to the field of mobile communication devices, and in particular, to a bidirectional power output linkage device and an antenna downtilt angle control device.

Background technique

As the number of mobile communication terminal users continues to increase, the network capacity requirements of stations in mobile cellular networks are increasing, and at the same time, interference between different stations or even between different sectors of the same site is required to be minimized, that is, the network is implemented. Maximize capacity and minimize interference. To achieve this, it is usually implemented by adjusting the downtilt angle of the antenna beam on the station.

At present, the way to adjust the beam downtilt is divided into: mechanical downtilt and electronic downtilt, and the advantage of electronic downtilt is obvious, which is the current mainstream and future development trend. The structure of the conventional electronic downtilt transmission device is relatively complicated. When the number of beams is large, the internal space of the antenna is large, the size of the entire transmission device is large, and the cost is greatly increased; and more precise regulation cannot be realized at the same time.

Summary of the invention

Based on this, it is necessary to provide a bidirectional power output linkage device and an antenna downtilt angle control device, which can realize independent and precise control of the downtilt angle of two or more beam antennas, and has a compact structure and a small overall size.

Its technical solutions are as follows:

A bidirectional power output linkage device and an antenna downtilt angle control device, comprising:

An input mechanism, the input mechanism comprising an input shaft;

a first transmission mechanism, the first transmission mechanism includes a first ring gear, a first gear coaxial with the first ring gear, a second gear that is operatively coupled to the first gear, and a first carrier in which the first ring gear rotates, the first gear is mounted on the input shaft, and the first gear drives the second gear to rotate, and the first end of the second gear Engaging with the inner ring gear and rotatable or/and revolving, the second end of the second gear is disposed outside the inner ring gear and is disposed on the first planet carrier and can be driven The first planet carrier rotates;

a second transmission mechanism, the second transmission mechanism includes a first rotating member fixedly coupled to the first carrier and a second rotating member operatively coupled to the first rotating member, when the first planetary When the first rotating member rotates, the first rotating member drives the second rotating member to rotate, and the rotating direction of the first rotating member is opposite to the rotating direction of the second rotating member;

a third transmission mechanism, the third transmission mechanism includes a second carrier that fixes the second rotating member, a third gear mounted on the input shaft, and a fourth gear that meshes with the third gear The third gear is coaxial with the first gear, the fourth gear is rotatably mounted on the second planet, and the fourth gear and the second gear can rotate at the same time or/and Revolving, the direction of rotation of the fourth gear is opposite to the direction of rotation of the second gear; and

a unidirectional control mechanism, the unidirectional control mechanism includes a first unidirectional component fixed to the first preset position, and a first fixed position disposed opposite to the first unidirectional component a two-way assembly, the first one-way assembly being disposed adjacent to the first inner ring gear, the first one-way assembly including a first rotating member unidirectionally rotatable in a first rotational direction, the first rotation a piece is fixedly coupled to the first ring gear, the second one-way assembly includes a second rotating member unidirectionally rotatable in a reverse direction of the first rotational direction, the second rotating member and the second The planet carrier is fixedly connected to the drive.

When the bidirectional power output linkage device is used, the input shaft is connected to the output end of the servo motor, and the first gear and the third gear are driven by the input shaft, the first gear drives the second gear to rotate, and the third gear drives the fourth gear to rotate, The rotation direction between the two gears and the fourth gear is opposite; when the first gear drives the second gear to rotate in the opposite direction of the first rotation direction, the first inner ring gear is fixedly coupled with the first rotating member, and the first rotation The piece cannot rotate in the opposite direction of the first rotation direction. At this time, the first ring gear cannot rotate in the opposite direction of the first rotation direction, and the first ring gear is fixed, so that the second gear revolves in the direction of the first rotation direction. At the same time, the first planet carrier is rotated in the direction of the first rotation direction, and the second gear wheel can be revolved to the preset position as needed; at the same time, the first planet carrier drives the first rotating member to rotate in the same direction, the first rotation The second rotating member rotates in a reverse direction, that is, the second rotating member rotates in a reverse direction of the first rotating direction, thereby driving the second carrier along the first rotating direction. The direction revolves, because the second planet carrier is fixed to the second rotating member, and the second rotating member can be unidirectionally rotated in the opposite direction of the first rotating direction, thereby driving the fourth gear in the opposite direction of the first rotating direction. The revolution is carried out, and the fourth gear can be revolved to a preset position as needed. Then, the rotation direction of the input shaft is reversed, the first gear drives the second gear to rotate in the first rotation direction, and the third gear drives the fourth gear to rotate in the opposite direction of the first rotation direction, and the first inner ring gear can be Rotating in the first rotational direction, the first rotating member is rotatable in the first rotational direction, and additionally, the second rotating member is not rotatable in the first rotational direction, causing the second carrier to be fixed, and the second rotating member and the second rotating member The carrier is fixed, so that the second rotating member and the first rotating member are also fixed, and the first carrier is also fixed. At this time, the second gear rotates only in the first rotating direction, for example, the second gear meshes with the output gear shaft, and further The power output in the first direction can be realized, for example, the fourth gear meshes with the output gear shaft, thereby realizing the reverse direction power output in the first direction, thereby realizing the bidirectional adjustment of the downtilt angle of the antenna; after completing the antenna downtilt adjustment, stopping When the power is input, the second gear can be stopped in time by the first transmission mechanism, and the rotation of the fourth gear can be stopped in time by using the third transmission mechanism; After the second gear and the fourth gear rotate and revolve to reach the position to be adjusted, and then the second gear and the fourth gear are only rotated, the downtilt angle of the corresponding antenna can be adjusted; since the second gear and the fourth gear are both The inner side of the output gear shaft is arranged to make the bidirectional power output linkage compact and small in size.

The technical solution is further explained below:

In one of the embodiments, the first gear meshes with the second gear through a ninth gear. Therefore, the first gear drives the second gear to rotate in the same direction through the ninth gear. When the first gear rotates clockwise, the ninth gear rotates counterclockwise, and the second gear rotates clockwise; the first gear and the second gear The synchronous rotation can be transmitted through the ninth gear or in the same direction as the other transmission gear set.

In one embodiment, the first unidirectional assembly further includes a third rotating member that is sleeve-fitted with the first rotating member and unidirectionally rotatable relative to the first rotating member, the third The rotating member is fixed to the first preset position; the second unidirectional assembly further includes a fourth rotating member that is sleeve-fitted with the second rotating member and unidirectionally rotatable relative to the second rotating member, The fourth rotating member is fixed to the second preset position. The specific implementation of the first one-way component and the second one-way component is a one-way rotation mechanism such as a one-way clutch or a one-way bearing.

In one embodiment, the first one-way component is a first one-way bearing, the first rotating component is an inner ring of the first one-way bearing, and the third rotating component is the first one. An outer ring of the one-way bearing, or the first rotating member is an outer ring of the first one-way bearing, the third rotating member is an inner ring of the first one-way bearing; the second one-way The component is a second one-way bearing, the second rotating member is an inner ring of the second one-way bearing, the fourth rotating member is an outer ring of the second one-way bearing, or the second single The component is a second one-way bearing, the second rotating member is an outer ring of the second one-way bearing, and the fourth rotating member is an inner ring of the second one-way bearing. Therefore, the one-way bearing can be used to realize the revolution or the rotation of the third gear, and the response speed of the one-way shaft is fast and the adjustment precision is higher; the third gear and the ring gear are connected with the inner ring or the outer ring of the one-way bearing. It can be selected according to the actual situation. For example, when the outer ring is fixed, the inner ring is fixedly connected with the first rotating member, and when the inner ring is fixed, the outer ring is fixedly connected with the first rotating member; the first one-way bearing is at a preset position. The specific manner of the second one-way bearing can be implemented by the prior art, and details are not described herein again.

In one embodiment, the first rotating member is a second inner ring gear, the second rotating member is a third inner ring gear, and the second inner ring gear and the third inner ring gear are along The input shaft is axially spaced apart; the second transmission mechanism further includes a gear transmission assembly, and the second ring gear is coupled to the third ring gear through the gear transmission assembly to cause the The direction of rotation of the second ring gear is opposite to the direction of rotation of the third ring gear. Therefore, the gear assembly is used to enable the second ring gear to drive the third ring gear to rotate, and the second ring gear is fixed to the first carrier, and the third ring gear is fixed to the second carrier, thereby achieving the first The revolving direction of the planet carrier is opposite to the revolving direction of the second planet carrier, so that the synchronous deviation of the second gear and the fourth gear in the opposite direction can be realized, which facilitates switching in the same circumferential range and improves the switching of the second gear and the fourth gear. effectiveness. The gear transmission assembly can utilize a plurality of gears to effect relative rotation between the second ring gear and the third ring gear.

In one embodiment, the gear transmission assembly includes a fifth gear and a sixth gear, one end of the fifth gear meshes with the second ring gear, and the other end is coupled to one end of the sixth gear Engaging, the other end of the sixth gear meshes with the third ring gear; the second ring gear is fixed to the first planet carrier, and the second transmission mechanism further includes mounting the a mounting box of the fifth gear and the sixth gear, the mounting box is fixed between the second ring gear and the third ring gear, and the mounting box is provided with a fifth gear and a a cavity of the six gears and an outer casing that is spaced apart from the cavity to form a groove, the fifth gear meshes with the second ring gear through a notch of the cavity, and the sixth gear passes the Another gap of the cavity engages the third ring gear. Therefore, one end of the fifth gear is meshed with the second ring gear, and the other end is meshed with one end of the sixth gear, and the other end of the sixth gear meshes with the third ring gear. Realizing the relative rotation of the second gear ring and the third gear ring; at the same time, the fifth gear and the sixth gear are installed by using the cavity of the mounting box to facilitate lubrication and protection between the fifth gear and the sixth gear, and the second internal tooth The ring is disposed in the groove and utilizes the outer casing to achieve lubrication and protection between the fifth gear and the second ring gear.

In one embodiment, the first rotating member is a seventh gear, the second rotating member is a stepped gear, and the second transmission mechanism further includes an eighth gear, the eighth gear and the input shaft Coaxially and fixed to a third preset position, the seventh gear of the stepped gear is engaged with the seventh gear, and the other end is engaged with the eighth gear; when the first planet drives the seventh When the gear rotates, the seventh gear drives the step gear to rotate and revolve. Therefore, another solution for realizing the synchronous differential of the second gear and the fourth gear in the opposite direction is provided. The seventh gear is fixed to the first planet carrier, and the first planet carrier can drive the step gear to rotate through the seventh gear, and the step gear Engaging with the eighth gear, so that the step gear can revolve along the outer side of the eighth gear, and simultaneously drive the second planet carrier to rotate in the opposite direction relative to the first planet carrier, so that the second gear and the fourth gear are in the same circumference Switching, improving the switching efficiency and driving efficiency of the second gear and the fourth gear, different gear ratios can be set as needed to meet various control requirements.

In one embodiment, the revolution track of the second gear and the revolution track of the fourth gear are circumferential tracks of the same size. Therefore, the output gears of the same number of teeth are meshed, the meshing effect after each switching is improved, the gear transmission operation is more stable, and the transmission is more accurate.

In one embodiment, the first planet carrier is a first casing, and the first transmission mechanism further includes a first cover body that cooperates with the first casing to form a first receiving cavity, the first a gear and the second gear are disposed in the first receiving cavity, and the rotation centerlines of the first casing, the first cover and the first ring gear are in the same axis as the input shaft On the line. Therefore, the first housing and the first cover form a first receiving cavity to protect the first gear and the second gear, thereby facilitating lubrication between the gears; and simultaneously rotating the center line of the first carrier and the rotation center line of the input shaft On the same straight line, the circumferential trajectory when the second gear is switched is minimized, which further simplifies the structure of the device.

In one embodiment, the second planet carrier is a second casing, and the third transmission mechanism further includes a second cover body that cooperates with the second casing to form a second receiving cavity, the The three gears and the fourth gear are disposed in the second receiving cavity, and the rotation center lines of the second casing and the second cover are on the same straight line as the axis of the input shaft. Therefore, the second housing and the second cover form a second receiving cavity to protect the third gear and the fourth gear, thereby facilitating lubrication between the gears; and simultaneously rotating the center line of the second carrier and the rotation center line of the input shaft On the same straight line, the circumferential trajectory when the fourth gear is switched is minimized, which further simplifies the structure of the device.

In one embodiment, the one-way control mechanism further includes a third one-way component, the third one-way component is fixed at the fourth preset position, and the third one-way component includes the first rotation a fifth rotating member that is unidirectionally rotated in a direction; the first cover body is provided with a connecting body that is outwardly convex, the connecting body passes through and is rotatable relative to the first inner ring gear, and The fifth rotating member is fixedly coupled to the transmission. Therefore, when the first gear drives the second gear to rotate in the opposite direction of the first rotation direction, the first ring gear is fixed, and the second gear revolves in the direction of the first rotation direction, and passes through the third one-way component, the first The planet carrier rotates in a direction of the first rotation direction, and the second gear wheel can be revolved to a preset position as needed; when the first gear wheel drives the second gear wheel to rotate in the first rotation direction, the first ring gear can also be along The first rotation direction is rotated. At this time, the third rotating member of the third unidirectional component can only rotate in a unidirectional direction of the first rotation direction, so that the first planet carrier cannot revolve in the opposite direction of the first rotation direction. In addition, the second gear can be rotated only without revolving, so that the second gear and the output gear shaft are accurately meshed, which is convenient to be controlled by the program setting, so that the adjustment of the antenna downtilt angle is more accurate and reliable.

In one embodiment, the second cover body is provided with an outwardly convex annular body, and the annular body is provided with a plurality of sensing portions. The specific shape of the sensing portion can be designed according to the characteristics of the sensing element.

In one embodiment, the sensing portion includes at least two first sensing notches uniformly spaced apart in a circumferential direction and a second sensing notch disposed between two adjacent first sensing notches. Therefore, the second inductive notch can be used to calibrate the position of the second gear or the fourth gear, and the first inductive notch is combined with the rotational speed of the first carrier to determine the second gear, or the rotational speed of the second carrier. The position of the fourth gear is determined, and the second gear or the fourth gear is switched to the corresponding position as needed.

In one embodiment, the fixing mechanism further includes two opposite first fixing plates and second fixing plates, and a fixing bracket fixed between the first fixing plate and the second fixing plate. The fixing bracket includes a plurality of heel strut, and the plurality of heel struts are circumferentially spaced apart to form a guard zone, the first transmission mechanism, the second transmission mechanism, the third transmission mechanism, and the single Providing the control mechanism in the protection zone, the first unidirectional component is fixed on the first fixing plate, and the second unidirectional component is fixed on the second fixing plate, the input One end of the end is rotatably disposed on the first fixing plate, and the other end is rotatably disposed on the second fixing plate. Therefore, the protection bracket is formed by the fixing bracket, the first fixing plate and the second fixing plate, thereby facilitating protection of the first transmission mechanism, the second transmission mechanism, the third transmission mechanism and the one-way control mechanism, and fixing the first single by using the first fixing plate The second unidirectional assembly is fixed to the assembly, and the first fixed plate and the second fixed plate are used to mount the input shaft, so as to control the first transmission mechanism, the second transmission mechanism and the third transmission mechanism through the input shaft. And the movement of the one-way control mechanism realizes that the rotation and/or rotation and the revolution of the second gear and the fourth gear can be realized by only one driving device.

In one embodiment, the second fixing plate is provided with an annular concave body that is outwardly convexly formed to cooperate with the annular body, and an outer wall of the annular concave body is provided with induction and sensing of the sensing portion. element. Therefore, the annular body is rotated in the annular concave body, and the sensing end of the sensing element is disposed in the annular concave body to avoid external interference; and at the same time, the annular body is rotated when the second cover body is rotated by providing the sensing element on the second fixed plate. The position of the first sensing notch and the second sensing notch also change correspondingly, and can be sensed by the sensing component and send a corresponding trigger signal to the control device, thereby the initial position and the real-time position of the second gear or the second gear The initial position and real-time position are positioned. The sensing element can be a magnetic sensing element, a photoelectric sensing element, a displacement sensing element, or the like.

The technical solution further provides an antenna downtilt angle control device, comprising the above bidirectional power output linkage device, further comprising: an output mechanism, the output mechanism comprising a plurality of output gear shafts, and the output gear shaft can be rotated independently, a circumferential spacing is disposed between the first fixed plate and the second fixed plate, and is respectively offset from all the struts, and the output gear shaft is engageable with the second gear or the fourth gear; And an output end of the driving device is fixedly connected to the input shaft; and the control device is communicably connected to the driving device and the sensing element.

When the antenna downtilt control device is used, the control device (such as a controller, a motion card, a PLC, etc.) controls the driving device (such as a servo motor) to drive the input shaft to rotate forward or reverse according to a preset program command, and drive the second gear and The fourth gear rotates or rotates, and the meshing drive of the different output gear shafts is realized as needed. Since the second gear and the fourth gear are revolved, the second gear meshes with the output gear shaft, and the fourth gear and the gear shaft The phase is staggered, or the fourth gear meshes with the output gear shaft, and the second gear is misaligned with the gear shaft, so that the meshing between the teeth is more precise, the mis-transmission force is avoided, and the control distortion is caused; and the sensing element is used to automatically recognize the first The position of the second gear or the fourth gear facilitates the second gear or the fourth gear to revolve to the corresponding position.

DRAWINGS

1 is a schematic view showing the first shaft side explosion of the bidirectional power output linkage device according to the present invention;

2 is a schematic view showing the first axial side explosion of the bidirectional power output linkage device according to the present invention;

3 is a top view showing the connection relationship between the first transmission mechanism and the third transmission mechanism according to the present invention;

4 is a schematic structural view of a first embodiment of a second transmission mechanism according to the present invention;

Figure 5 is a schematic structural view of a second embodiment of the second transmission mechanism according to the present invention;

6 is a schematic view showing the meshing of the second gear and the output gear shaft of the antenna downtilt angle control device according to the present invention;

7 is a schematic structural view of an antenna downtilt angle control device according to the present invention;

Figure 8 is a partial exploded view of the bidirectional power output linkage device of the present invention;

Figure 9 is a schematic exploded view of the mounting box of the present invention.

Description of the reference signs:

110, input shaft, 120, input gear, 200, first transmission mechanism, 210, first inner ring gear, 212, mounting member, 220, first gear, 230, second gear, 240, first planet carrier, 250 , first cover, 252, connecting body, 260, ninth gear, 300, second transmission mechanism 310, first transmission member, 312, second inner ring gear, 314, seventh gear, 320, second transmission 322, third inner ring gear, 324, step gear, 330, fifth gear, 340, sixth gear, 350, mounting box, 352, cavity, 354, outer box, 356, groove, 357, a third box, 358, a fourth box, 302, a notch, 360, an eighth gear, 400, a third transmission mechanism, 410, a second planet carrier, 412, a second casing, 420, a third gear, 430 a fourth gear, 440, a second cover, 442, an annular body, 444, a sensing portion, 402, a first inductive notch, 404, a second inductive notch, 510, a first one-way component, 520, a second one-way Assembly, 530, third unidirectional assembly, 600, fixing mechanism, 610, first fixing plate, 620, second fixing plate, 622, annular concave body, 630, fixing bracket 632, strut 634, barrel 640, sensing element 710, the output gear shaft 10, the connecting member.

detailed description

The present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the scope of the invention.

It should be noted that when an element is referred to as being "fixed", "mounted", "in" or "in" another element, it may be directly on the other element or the element may be present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or a central element can be present at the same time; further, when one element is considered to be a "fixed drive connection" another element, both can It can be fixed in the detachable connection mode, and can also be fixed in the non-removable connection, such as socketing, snapping, integral molding, welding, etc., which can be implemented in the prior art, and will not be described herein. The terms "vertical", "horizontal", "left", "right", and the like, as used herein, are for the purpose of illustration and are not intended to be the only embodiment. The "first direction of rotation" can be defined as the clockwise direction (-) of the input shaft, and the "reverse direction of the first direction of rotation" is the counterclockwise direction (+) of the input shaft.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. The terminology used in the description of the present invention is for the purpose of describing particular embodiments and is not intended to limit the invention. The term "and/or" used herein includes any and all combinations of one or more of the associated listed items.

In the present invention, "first", "second", "third", "fourth", "fifth", "sixth", "seventh", "eighth", "ninth" are not Representing the specific quantity and order is just a distinction for the name.

As shown in FIG. 1 to FIG. 7, the present invention relates to a bidirectional power output linkage device comprising: an input mechanism (not labeled), an input mechanism including an input shaft 110, a first transmission mechanism 200, and a first transmission mechanism 200 including a first The inner ring gear 210, the first gear 220 coaxial with the first inner ring gear 210, the first gear 220 form an operatively coupled second gear 230, and the first planet carrier 240 rotatable relative to the first ring gear 210 The first gear 220 is mounted on the input shaft 110, and the first gear 220 drives the second gear 230 to rotate. The first end of the second gear 230 meshes with the inner ring gear and can rotate or/and revolve. The second gear The second end of the 230 is disposed outside the ring gear and is disposed on the first planet carrier 240 and can drive the first planet carrier 240 to rotate; the second transmission mechanism 300, the second transmission mechanism 300 includes the first planet The first rotating member of the frame 240 is fixedly connected to the first rotating member and the second rotating member that is operatively coupled to the first rotating member. When the first carrier 240 rotates the first rotating member, the first rotating member drives the second rotating member to perform the second rotating member. Rotating, and the direction of rotation of the first rotating member The rotation direction of the two rotating members is opposite; the third transmission mechanism 400 includes a second carrier 410 fixed to the second rotating member, a third gear 420 mounted on the input shaft 110, and the third gear The fourth gear 430 is engaged with the 420, the third gear 420 and the first gear 220 are driven by the input shaft 110, the fourth gear 430 is rotatably mounted on the second planet carrier 410, and the fourth gear 430 and the second gear 230 may be rotated or/and revolved at the same time, the rotation direction of the fourth gear 430 is opposite to the rotation direction of the second gear 230; and the one-way control mechanism includes a first single fixed to the first preset position To the component 510, and the second unidirectional component 520 fixed to the second preset position and disposed opposite to the first unidirectional component 510, the first unidirectional component 510 is disposed adjacent to the first ring gear 210, the first single The assembly 510 includes a first rotating member (not shown) unidirectionally rotatable in a first rotational direction, the first rotating member being fixedly coupled to the first ring gear 210, and the second one-way assembly 520 including along the first a second rotating member that rotates in the opposite direction in the opposite direction of rotation (not ), A second rotary member connected to the second planet carrier 410 fixed gear.

As shown in FIG. 1 to FIG. 7 , when the bidirectional power output linkage device is used, the input shaft 110 is connected to the output end of the servo motor, and the first gear 220 and the third gear 420 are driven by the input shaft 110, and the first gear 220 drives the first gear 220. The second gear 230 rotates, the third gear 420 drives the fourth gear 430 to rotate, and the rotation direction between the second gear 230 and the fourth gear 430 is opposite; when the first gear 220 drives the second gear 230 in the opposite direction of the first rotation direction When rotating, the first ring gear 210 is fixedly coupled to the first rotating member, and the first rotating member cannot rotate in the opposite direction of the first rotating direction. At this time, the first ring gear 210 cannot be reversed in the first rotating direction. Rotation of the direction, the first ring gear 210 is fixed, so that the second gear 230 revolves in the direction of the first rotation direction, and simultaneously drives the first planet carrier 240 to rotate in the direction of the first rotation direction, and the second gear 230 can be Revolving to a preset position; at the same time, the first planet carrier 240 drives the first rotating member to rotate in the same direction, and the first rotating member drives the second rotating member to rotate in the opposite direction, that is, the second rotating member rotates along the first rotation Rotating in the opposite direction, thereby driving the second planet carrier 410 to revolve in the opposite direction of the first rotational direction, because the second planet carrier 410 is fixed to the second rotating member, and the second rotating member can be reversed in the first rotational direction The direction is unidirectionally rotated, which in turn can drive the fourth gear 430 to revolve in the opposite direction of the first rotation direction, and the fourth gear 430 can be revolved to a preset position as needed. Then, the rotation direction of the input shaft 110 is reversed, the first gear 220 drives the second gear 230 to rotate in the first rotation direction, and the third gear 420 drives the fourth gear 430 to rotate in the opposite direction of the first rotation direction. An inner ring gear 210 is rotatable in a first rotational direction, a first rotating member is rotatable in a first rotational direction, and in addition, the second rotating member is incapable of rotating in the first rotational direction, causing the second planet carrier 410 to be fixed while The second rotating member 320 is fixed to the second carrier 410, so that the second rotating member 320 and the first rotating member 310 are also fixed, and the first carrier 240 is also fixed. At this time, the second gear 230 is only performed in the first rotating direction. Rotation, if the second gear 230 meshes with the output gear shaft 710, thereby realizing the power output in the first direction, for example, the fourth gear 430 meshes with the output gear shaft 710, thereby realizing the power output in the opposite direction in the first direction, thereby realizing Two-way adjustment of the downtilt angle of the antenna; after the antenna downtilt adjustment is completed, the input of the power can be stopped, and the second gear can be stopped in time by the first transmission mechanism 200, and the third transmission mechanism 400 can be utilized. The rotation of the fourth gear 430 is stopped; when the next adjustment is made, the second gear 230 and the fourth gear 430 are rotated and revolved to reach the position to be adjusted, and then the second gear 230 and the fourth gear 430 are only rotated. The adjustment of the corresponding antenna downtilt angle can be realized; since the second gear 230 and the fourth gear 430 are both disposed inside the output gear shaft 710, the bidirectional power output linkage device has a compact structure and a small size.

On the basis of the above embodiment, the first gear 220 meshes with the second gear 230 through the ninth gear 260. Therefore, the first gear 220 drives the second gear 230 to rotate in the same direction through the ninth gear 260. When the first gear 220 rotates clockwise, the ninth gear 260 rotates counterclockwise, and the second gear 230 rotates clockwise; Synchronous rotation of a gear 220 and the second gear 230 may be transmitted through the ninth gear 260 or with the other transmission gear set to rotate the first gear 220 and the second gear 230 in the same direction.

On the basis of the above embodiment, the first unidirectional component 510 further includes a third rotating member that is sleeve-fitted with the first rotating member and unidirectionally rotatable relative to the first rotating member, and the third rotating member is fixed to the first The second unidirectional assembly 520 further includes a fourth rotating member that is sleeve-fitted with the second rotating member and unidirectionally rotatable relative to the second rotating member, and the fourth rotating member is fixed to the second preset position. The first one-way component 510 and the second one-way component 520 are embodied in a one-way rotating mechanism such as a one-way clutch, a one-way bearing, a ratchet or the like.

Further, the first unidirectional component 510 is a first one-way bearing, the first rotating component is an inner ring of the first one-way bearing, the third rotating component is an outer ring of the first one-way bearing, or the first rotating component is The outer ring of the first one-way bearing and the third rotating member are inner rings of the first one-way bearing; the second one-way component 520 is a second one-way bearing, and the second rotating component is an inner ring of the second one-way bearing, The fourth rotating member is an outer ring of the second one-way bearing, or the second one-way component 520 is a second one-way bearing, the second rotating member is an outer ring of the second one-way bearing, and the fourth rotating member is a second single To the inner ring of the bearing. Therefore, the one-way bearing can be used to realize the revolution or the rotation of the third gear 420, and the response speed of the one-way shaft is fast and the adjustment precision is higher; the third gear 420 and the inner ring gear are connected with the inner ring of the one-way bearing or the outer ring. The ring connection can be selected according to the actual situation. For example, when the outer ring is fixed, the inner ring is fixedly connected with the first rotating member, and when the inner ring is fixed, the outer ring is fixedly connected with the first rotating member; the first single is at the preset position The specific manner of the bearing or the second one-way bearing can be realized by the prior art, and details are not described herein again.

As shown in FIGS. 1, 3 and 4, based on the foregoing implementation, the second transmission mechanism may be a coaxial forward/reverse mechanism, a coaxial inversion mechanism, a reverse-direction synchronous rotation mechanism, or the like. Specifically, the first rotating member is a second inner ring gear 312, the second rotating member is a third inner ring gear 322, and the second inner ring gear 312 and the third inner ring gear 322 are spaced apart along the axial direction of the input shaft 110; The second transmission mechanism 300 further includes a gear transmission assembly. The second internal ring gear 312 is operatively coupled to the third inner ring gear 322 through the gear transmission assembly to rotate the second ring gear 312 and the third ring gear 322. The direction of rotation is reversed. Therefore, the second inner ring gear 312 can drive the third inner ring gear 322 to rotate, and the second inner ring gear 312 is fixed to the first planet carrier 240, the third inner ring gear 322 and the second planet carrier 410. The rotation direction of the first carrier 240 is opposite to the rotation direction of the second carrier 410, so that the synchronous deviation of the second gear 230 and the fourth gear 430 in the opposite direction can be realized, and the switching is facilitated in the same circumference. The switching efficiency of the second gear 230 and the fourth gear 430 is improved. The gear transmission assembly can utilize a plurality of gears to effect relative rotation between the second ring gear 312 and the third ring gear 322. Further, the gear transmission assembly includes a fifth gear 330 and a sixth gear 340. One end of the fifth gear 330 meshes with the second ring gear 312, and the other end meshes with one end of the sixth gear 340. The sixth gear 340 The other end is engaged with the third ring gear 322; the second ring gear 312 is fixed on the first planet carrier 240, and the second transmission mechanism 300 further includes a mounting box 350 for mounting the fifth gear 330 and the sixth gear 340. The mounting box 350 is fixed between the second ring gear 312 and the third ring gear 322. The mounting box 350 is provided with a cavity 352 for accommodating the fifth gear 330 and the sixth gear 340, and is spaced apart from the cavity 352 to form a concave portion. The outer casing 354 of the slot 356, the fifth gear 330 meshes with the second ring gear 312 through the notch 302 of the cavity 352, and the sixth gear 340 passes through the other notch 302 of the cavity 352 and the third ring gear 322. Engage. Therefore, one end of the fifth gear 330 is meshed with the second ring gear 312, the other end is meshed with one end of the sixth gear 340, and the other end of the sixth gear 340 is meshed with the third ring gear 322 to realize the second The gear ring 312 rotates synchronously with the coaxial gear in the opposite direction of the third gear ring 322; and the fifth gear 330 and the sixth gear 340 are mounted by the cavity 352 of the mounting box 350 to facilitate the connection between the fifth gear 330 and the sixth gear 340. Lubrication and protection, the second ring gear 312 is disposed in the groove 356, and the outer casing 354 is used to achieve lubrication and protection between the fifth gear 330 and the second ring gear 312.

Specifically, as shown in FIG. 9, the mounting box 350 includes a third box body 357 fixed to the fixing bracket 630 and a fourth box body 358 detachably and fixedly connected to the third box body 357, and the third box body 357 and the The four casings 358 cooperate with each other to form a cavity 352. The fifth gear 330 meshes with the second ring gear 312 through the notch 302 of the fourth casing 358, and the sixth gear 340 passes through the notch 302 and the third of the third casing 357. The ring gear 322 is engaged. There are various implementations of the mounting box, and are not limited to the embodiment.

As shown in FIGS. 2, 3 and 5, in another embodiment, the first rotating member is the seventh gear 314, the second rotating member is the stepped gear 324, and the second transmission mechanism 300 further includes the eighth gear 360, the eighth gear 360 is fixed in the third preset position, one end of the stepped gear 324 is engaged with the seventh gear 314, and the other end is engaged with the eighth gear 360; when the first planet carrier 240 drives the seventh gear 314 to rotate, the seventh gear 314 drives the step gear 324 to rotate and revolve. Therefore, another solution for realizing the synchronous deviation of the second gear 230 and the fourth gear 430 in the opposite direction is provided. The seventh gear 314 is fixed to the first carrier 240, and the first carrier 240 can drive the step through the seventh gear 314. The gear 324 rotates, and the step gear 324 meshes with the eighth gear 360, so that the step gear 324 can revolve along the outer side of the eighth gear 360, and simultaneously drive the second planet carrier 410 to rotate in the opposite direction with respect to the first planet carrier 240. The second gear 230 and the fourth gear 430 are conveniently switched in the same circumferential range, and the switching efficiency and driving efficiency of the second gear 230 and the fourth gear 430 are improved, and different gear ratios can be set according to requirements to meet various control requirements; further The eighth gear 360 is coaxial with the input shaft 110, and thus the second gear 230 and the fourth gear 430 are synchronously differential in the opposite direction of the coaxial direction. The step gear 324 includes a first tooth body (not labeled) that meshes with the seventh gear wheel and a second tooth body (not labeled) that meshes with the eighth gear wheel 360. The first tooth body and the second tooth body are coaxially fixed. The number of teeth of the first tooth body and the second tooth body may be the same or different.

It should be noted that the first rotating member 310 drives the second rotating member 320 to rotate, and the rotating direction of the first rotating member 310 is opposite to the rotating direction of the second rotating member 320, and is not limited to the above two implementations. example.

Based on the foregoing embodiment, the revolution track of the second gear 230 and the revolution track of the fourth gear 430 are circumferential tracks of the same size. Therefore, the output gears of the same number of teeth are meshed, the meshing effect after each switching is improved, the gear transmission operation is more stable, the transmission is more precise, and the structure of the device is more compact.

As shown in FIG. 1, 2, 7 and 8, on the basis of the foregoing embodiment, the first planet carrier 240 is a first box body, and the first transmission mechanism 200 further includes a first housing cavity formed in cooperation with the first box body. The first cover body 250, the first gear 220 and the second gear 230 are disposed in the first receiving cavity, and the rotation center line of the first box body, the first cover body 250 and the first ring gear 210 and the input shaft 110 The axes are on the same line. Therefore, the first housing 220 and the second housing 230 are formed by the first housing and the first cover 250 to protect the first gear 220 and the second gear 230, thereby facilitating lubrication between the gears; and simultaneously rotating the center line and the input shaft of the first carrier 240 The center lines of rotation of 110 are on the same line, minimizing the circumferential trajectory when the second gear 230 is switched, which further simplifies the structure of the apparatus. Further, the one-way control mechanism further includes a third one-way component 530, the third one-way component 530 is fixed at the fourth preset position, and the third one-way component 530 includes a one-way rotation that can be rotated along the first rotation direction. a fifth rotating member (not shown); the first cover 250 is provided with a connecting body 252 which is disposed outwardly, and the connecting body 252 passes through and is rotatable relative to the first ring gear 210, and the fifth rotating member Fixed drive connection. Therefore, when the first gear 220 drives the second gear 230 to rotate in the opposite direction of the first rotation direction, the first ring gear 210 is fixed, and the second gear 230 revolves in the direction of the first rotation direction, through the third unidirectional component. The unidirectional rotation control of the third rotating member of the 530, the first planet carrier 240 rotates in the direction of the first rotation direction, and the second gear 230 can be revolved to the preset position as needed; when the first gear 220 drives the second When the gear 230 rotates in the first rotation direction, the first ring gear 210 can also rotate in the first rotation direction. At this time, the third rotating member of the third unidirectional component 530 can only be in the first rotation direction. The rotation of the first carrier 240 is not reversible in the opposite direction of the first rotation direction, thereby ensuring that the second gear 230 rotates only without revolving, so that the second gear 230 and the output gear shaft 710 are accurately meshed. It is easy to control by program setting, so that the adjustment of the antenna downtilt angle is more accurate and reliable. The third one-way component 530 can be a one-way rotating mechanism such as a one-way clutch, a one-way bearing, a ratchet, or the like. The first ring gear 210 is fixedly coupled to the first rotating member via a mounting member 212, and the mounting member 212 is rotatably coupled to the connecting body 252 via a sliding bearing or a rolling bearing.

As shown in FIGS. 1, 2 and 7, on the basis of the foregoing embodiment, the second planet carrier 410 is a second box body 412, and the third transmission mechanism 400 further includes a second housing body 412 that cooperates with the second box body 412 to form a second housing chamber. The second cover 440, the third gear 420 and the fourth gear 430 are disposed in the second receiving cavity, and the rotation center line of the second box 412 and the second cover 440 are on the same line as the axis of the input shaft 110. Therefore, the second housing 412 and the second cover 440 form a second receiving cavity to protect the third gear 420 and the fourth gear 430, thereby facilitating lubrication between the gears; and simultaneously rotating the center line and the input of the second carrier 410 The center line of rotation of the shaft 110 is on the same straight line, which minimizes the circumferential trajectory when the fourth gear 430 is switched, which further simplifies the structure of the apparatus.

As shown in FIGS. 1, 2 and 7, in the foregoing embodiment, the second cover 440 is provided with an outwardly convex annular body 442, and the annular body 442 is provided with a plurality of sensing portions 440. The specific shape of the sensing portion 440 can be designed according to the characteristics of the sensing element 640. Further, the sensing portion 440 includes at least two first sensing notches 402 uniformly spaced apart in the circumferential direction and a second sensing notch 404 disposed between the two adjacent first sensing notches 402. Therefore, the second inductive notch 404 can be used to calibrate the position of the second gear 230 or the fourth gear 430, and the second inductive notch 402 is combined with the rotational speed of the first planet carrier 240 to determine the second gear 230, or The rotational speed of the second planet carrier 410 determines the position of the fourth gear 430, and the second gear 230 or the fourth gear 430 is switched to the corresponding position as needed.

As shown in FIG. 1 , 2 and 7 , in addition to the foregoing embodiments, the fixing mechanism 600 further includes two opposite first fixing plates 610 and second fixing plates 620 , and is fixed on The fixing bracket 630 between the first fixing plate 610 and the second fixing plate 620, the fixing bracket 630 includes a plurality of heel strut 632, and the plurality of heel strut 632 are circumferentially spaced apart to form a protection zone, the first transmission mechanism 200, The second transmission mechanism 300, the third transmission mechanism 400 and the one-way control mechanism are disposed in the protection zone, the first one-way component 510 is fixed on the first fixing plate 610, and the second one-way component 520 is fixed on the second fixing. On the board 620, one end of the input shaft 110 is rotatably disposed on the first fixing plate 610, and the other end is rotatably disposed on the second fixing plate 620. Therefore, the protection bracket is formed by the fixing bracket 630, the first fixing plate 610 and the second fixing plate 620, so as to protect the first transmission mechanism 200, the second transmission mechanism 300, the third transmission mechanism 400, and the one-way control mechanism, and utilize the first The fixing plate 610 fixes the first unidirectional component 510, and the second fixing plate 620 fixes the second unidirectional component 520, and the first fixing plate 610 and the second fixing plate 620 are used to mount the input shaft 110 for control by the input shaft 110. The movement of the first transmission mechanism 200, the second transmission mechanism 300, the third transmission mechanism 400 and the one-way control mechanism realizes that the rotation and/or rotation of the second gear 230 and the fourth gear 430 can be realized by only one driving device. Revolution.

As shown in FIGS. 1, 2 and 7, in the foregoing embodiment, the second fixing plate 620 is provided with an annular concave body 622 which is outwardly convexly formed to cooperate with the annular body 442, and the outer wall of the annular concave body 622 An inductive element 640 is provided with an inductive and inductive portion 440. Therefore, the annular body 442 is rotated in the annular concave body 622, and the sensing end of the sensing element 640 is disposed in the annular concave body 622 to avoid external interference; and at the same time, the sensing element 640 is disposed on the second fixing plate 620, and the second When the cover 440 is rotated, the positions of the first sensing notch 402 and the second sensing notch 404 on the annular body 442 are also changed correspondingly, and the sensing component 640 can sense and send a corresponding trigger signal to the control device, thereby The initial position and real-time position of the second gear 230 or the initial position and real-time position of the second gear 230420 are positioned. The sensing element 640 can be a magnetic sensing element 640, a photo sensing element 640, a displacement sensing element 640, and the like.

It should be noted that the implementation manner that the input shaft 110 is fixedly connected to the first gear 220 and the third gear 420 is not limited to the specific embodiment, and may be multiple and can be implemented in the prior art. The implementation of the input shaft 110 through the first transmission mechanism, the second transmission mechanism 300, the third transmission mechanism 400, and the one-way control mechanism, and the rotation of the first fixing plate 610 and the second fixing plate 620 is not limited to this embodiment. The specific embodiments are also applicable to the prior art, and are not described herein again. The embodiment in which the outer ring of the first one-way bearing is fixed on the first fixing plate 610 and the outer ring of the second one-way bearing is fixed on the second fixing plate 620 is not limited to the specific embodiment, and may have various types. It can be implemented in the prior art, and details are not described herein again. Similarly, the first inner ring gear and the second cover body 440 are fixed by the connecting member 10 and the outer ring of the one-way bearing, and are not limited to the specific embodiment.

As shown in FIG. 1 to FIG. 7 , the present invention further provides an antenna downtilt angle control device, comprising the above bidirectional power output linkage device, further comprising: an output mechanism (not labeled), the output mechanism comprising a plurality of output gear shafts 710 The output gear shaft 710 can be rotated and circumferentially spaced between the first fixed plate 610 and the second fixed plate 620, and is respectively offset from all the poles 632, and the output gear shaft 710 can be coupled with the second gear 230 or The fourth gear 430 is meshed with the driving device, and the output end of the driving device is fixedly connected to the input shaft 110; the control device is connected in communication with the driving device and the sensing element 640.

When the antenna downtilt control device is used, the control device (such as a controller, a motion card, a PLC, etc.) controls the driving device (such as a servo motor or other selected power output mechanism 700) according to a preset program command to drive the input shaft 110 to rotate forward. Or inverting, the second gear 230 and the fourth gear 430 are driven to revolve or rotate, and the meshing drive of the different output gear shafts 710 is realized as needed. Since the second gear 230 and the fourth gear 430 can be displaced, the second gear can be misaligned. 230 is engaged with the output gear shaft 710, and the fourth gear 430 is offset from the gear shaft, or the fourth gear 430 is meshed with the output gear shaft 710, and the second gear 230 is offset from the gear shaft so that the teeth are between The engagement is more precise, the mis-drive force is avoided, and the control distortion is caused. At the same time, the position of the second gear 230 or the fourth gear 430 is automatically recognized by the sensing element 640, so that the second gear 230 or the fourth gear 430 can be revolved to the corresponding position.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A bidirectional power output linkage device, comprising:

An input mechanism, the input mechanism comprising an input shaft;

a first transmission mechanism, the first transmission mechanism includes a first ring gear, a first gear coaxial with the first ring gear, a second gear that is operatively coupled to the first gear, and a first carrier in which the first ring gear rotates, the first gear is mounted on the input shaft, and the first gear drives the second gear to rotate, and the first end of the second gear Engaging with the inner ring gear and rotatable or/and revolving, the second end of the second gear is disposed outside the inner ring gear and is disposed on the first planet carrier and can be driven The first planet carrier rotates;

a second transmission mechanism, the second transmission mechanism includes a first rotating member fixedly coupled to the first carrier and a second rotating member operatively coupled to the first rotating member, when the first planetary When the first rotating member rotates, the first rotating member drives the second rotating member to rotate, and the rotating direction of the first rotating member is opposite to the rotating direction of the second rotating member;

a third transmission mechanism, comprising: a second planet carrier on which the second rotating member is mounted, a third gear mounted on the input shaft, and a fourth gear meshing with the third gear The third gear is coaxial with the first gear, the fourth gear is rotatably mounted on the second planet, and the fourth gear and the second gear can rotate at the same time or/and Revolving, the direction of rotation of the fourth gear is opposite to the direction of rotation of the second gear; and

a unidirectional control mechanism, the unidirectional control mechanism includes a first unidirectional component fixed to the first preset position, and a first fixed position disposed opposite to the first unidirectional component a two-way assembly, the first one-way assembly being disposed adjacent to the first inner ring gear, the first one-way assembly including a first rotating member unidirectionally rotatable in a first rotational direction, the first rotation a piece is fixedly coupled to the first ring gear, the second one-way assembly includes a second rotating member unidirectionally rotatable in a reverse direction of the first rotational direction, the second rotating member and the second rotating member The second planet carrier is fixedly connected to the transmission.
The bidirectional power output linkage device according to claim 1, wherein the first rotating member is a second inner ring gear, the second rotating member is a third inner ring gear, and the second inner ring gear And the third ring gear is spaced along an axial direction of the input shaft; the second transmission mechanism further includes a gear transmission assembly, the second ring gear passes through the gear transmission assembly, and the third The ring gear is operatively connected such that the direction of rotation of the second ring gear is opposite to the direction of rotation of the third ring gear.
The bidirectional power output linkage device according to claim 2, wherein the gear transmission assembly includes a fifth gear and a sixth gear, one end of the fifth gear meshes with the second ring gear, and One end is engaged with one end of the sixth gear, and the other end of the sixth gear is meshed with the third ring gear.
The bidirectional power output linkage device according to claim 3, wherein the second ring gear is fixed to the first planet carrier, and the second transmission mechanism further comprises mounting the fifth gear wheel and a mounting box of the sixth gear, the mounting box is fixed between the second ring gear and the third ring gear, and the mounting box is provided with a cavity for accommodating the fifth gear and the sixth gear And an outer casing that is spaced apart from the cavity to form a groove, the fifth gear meshes with the second ring gear through a notch of the cavity, and the sixth gear passes through the cavity A notch engages the third ring gear.
The bidirectional power output linkage device according to claim 1, wherein the first rotating member is a seventh gear, the second rotating member is a stepped gear, and the second transmission mechanism further includes an eighth gear. The eighth gear is coaxial with the input shaft and is fixed at a third preset position, and the seventh gear of the step gear is engaged with the seventh gear and the other end is engaged with the eighth gear; When the first planet carrier drives the seventh gear to rotate, the seventh gear drives the step gear to rotate and revolve.
The bidirectional power output linkage device according to claim 1, wherein the step gear comprises a first tooth body that meshes with the seventh gear wheel and a second tooth body that meshes with the eighth gear body, the first tooth body and the first tooth body The two teeth are coaxially fixed.
The bidirectional power output linkage device according to claim 1, wherein the revolving trajectory of the second gear and the revolving trajectory of the fourth gear are circumferential trajectories of the same size.
The bidirectional power output linkage device according to claim 1, wherein the first planet carrier is a first box body, and the first transmission mechanism further comprises a first housing corresponding to the first box body. a first cover of the cavity, the first gear and the second gear are disposed in the first receiving cavity, and the rotation centers of the first case, the first cover and the first ring gear The line is on the same line as the axis of the input shaft.
The bidirectional power output linkage device according to claim 8, wherein the one-way control mechanism further comprises a third one-way component, the third one-way component is fixed at the fourth preset position, the third single The assembly includes a fifth rotating member rotatable in a unidirectional direction along the first rotational direction; the first cover body is provided with a connecting body disposed outwardly, the connecting body passing through and being opposite to the The first ring gear rotates and is fixedly coupled to the fifth rotating member.
The bidirectional power output linkage device according to any one of claims 1 to 9, wherein the second carrier is a second casing, and the third transmission mechanism further comprises a second casing Cooperating with the second cover body forming the second receiving cavity, the third gear and the fourth gear are disposed in the second receiving cavity, and the rotation center line of the second box body and the second cover body It is on the same line as the axis of the input shaft.
The bidirectional power output linkage device according to claim 10, wherein the second cover body is provided with an outwardly convex annular body, and the annular body is provided with a plurality of sensing portions.
The bidirectional power output linkage device according to claim 11, further comprising a fixing mechanism, wherein the fixing mechanism comprises two opposite first fixing plates and second fixing plates, and is fixed to the first fixing plate And a fixing bracket between the second fixing plate, the fixing bracket includes a plurality of heel strut, and the plurality of heel struts are circumferentially spaced apart to form a protection zone, the first transmission mechanism, the second transmission mechanism, The third transmission mechanism and the one-way control mechanism are disposed in the protection zone, the first one-way component is fixed on the first fixing plate, and the second one-way component is fixed in the On the second fixing plate, one end of the input end is rotatably disposed on the first fixing plate, and the other end is rotatably disposed on the second fixing plate.
The bidirectional power output linkage device according to claim 12, wherein the second fixing plate is provided with an annular concave body that is outwardly convexly formed to cooperate with the annular body, and an outer wall of the annular concave body An inductive element that senses the sensing portion is provided.
An antenna downtilt control device, comprising the bidirectional power output linkage device of claim 13, further comprising:

An output mechanism, the output mechanism includes a plurality of output gear shafts, and the output gear shafts are rotatable and circumferentially spaced between the first fixed plate and the second fixed plate, and are respectively associated with all of the support rods Staggered, the output gear shaft is engageable with the second gear or the fourth gear;

a driving device, the output end of the driving device is fixedly connected to the input shaft;

A control device communicatively coupled to the drive device and the sensing element.