CN221279082U - Antenna holder - Google Patents

Abstract

The utility model discloses an antenna holder, which comprises a bracket and a holder box body, wherein a rotary driving device for driving the bracket to rotate is arranged in the holder box body, the rotary driving device comprises a worm gear reduction box, an output shaft of the worm gear reduction box is provided with an angle limiter, the angle limiter comprises a limit lug and two limit stops, the limit lug is fixedly arranged on the output shaft of the worm gear reduction box, the two limit stops are fixedly arranged on the outer wall of the worm gear reduction box or the inner wall of the holder box body, and the two limit stops are respectively connected with an adjusting screw for adjusting the stroke of the limit lug in a threaded manner. The angle limiter is simple in structure, the stroke of the limiting protruding block can be adjusted through the adjusting screw, so that the positioning accuracy of the output shaft of the worm and gear reduction box is higher when the output shaft of the worm and gear reduction box rotates to the position of 0 degree or 90 degrees, equipment looseness is not easy to occur due to a gap between a worm and a worm wheel, and the service life of the equipment is prolonged.

Description

Antenna holder

Technical Field

The utility model relates to the technical field of holders, in particular to an antenna holder.

Background

The cradle head is a supporting device for installing and fixing devices such as a monitoring security device, a laser tracker, a radar antenna and the like, and can also be provided with devices such as a movable illuminating lamp cap, an emergency lamp and the like. The cradle head is suitable for the condition of large monitoring range, and the horizontal and pitching angles of the cradle head can be adjusted after the equipment such as an antenna is installed on the cradle head, so that the installed equipment can radiate a larger range. The utility model discloses an antenna cloud platform in the chinese patent of publication No. CN217815948U, including swing frame, cloud platform box and adapter seat, the fixed adapter seat that is provided with in cloud platform bottom half, rotate on the cloud platform box and install the swing frame, the cloud platform box is inside to be equipped with and to be used for the drive swing frame pivoted rotary drive device, rotary drive device includes control module, motor and worm gear reduction box's output shaft both ends respectively fixedly connected with first transmission shaft and second transmission shaft, installs angle sensor and angle limiter on first transmission shaft and the second transmission shaft respectively, motor and angle sensor all with control module electric connection. The drawbacks of the above prior art are: because of the reasons of manufacturing assembly, use abrasion and the like, a certain gap is reserved between the worm in the worm gear reduction box and the worm wheel, and a certain rotatable amount is reserved after the output shaft of the worm gear reduction box rotates in place, so that equipment can be loosened, larger vibration is easily generated when the cradle head rotates or is blown by strong wind, the use of the equipment is influenced, and the service life of a product is shortened.

Disclosure of utility model

The utility model aims to solve the problems in the prior art, and provides an antenna cradle head which improves the positioning accuracy of an output shaft of a worm gear reduction box.

The utility model solves the technical problems by adopting the technical scheme that: the antenna tripod head comprises a bracket and a tripod head box body, wherein a rotary driving device used for driving the bracket to rotate is arranged in the tripod head box body, the rotary driving device comprises a worm gear reduction box fixedly installed in the tripod head box body, an output shaft of the worm gear reduction box is fixedly connected with the bracket, an input shaft of the worm gear reduction box is connected with a main motor, and an angle limiter is arranged on an output shaft of the worm gear reduction box and is characterized in that: the angle limiter comprises a limiting lug and two limiting stops, wherein the limiting lug is fixedly arranged on an output shaft of the worm gear reduction box, the two limiting stops are fixedly arranged on the outer wall of the worm gear reduction box or the inner wall of the holder box, the limiting lug is positioned between the two limiting stops, and the two limiting stops are respectively connected with an adjusting screw for adjusting the stroke of the limiting lug in a threaded manner.

Further perfecting, two limit stops are respectively provided with a screw hole for connecting an adjusting screw, and the axes of the two screw holes are mutually perpendicular.

Further perfecting, the limit lug adopts an inner hexagon screw, and two mutually perpendicular through mounting holes are formed in the circumferential surface of an output shaft of the worm gear reduction box and are in threaded connection with the inner hexagon screw.

Further perfecting, an angle sensor is arranged on an output shaft of the worm gear reduction box, and the angle sensor and the angle limiter are positioned on the same side of the holder box body.

Further perfecting, the inside of cloud platform box is equipped with the bevel gear commutator, and vice motor is connected to the input of bevel gear commutator, and the rocker is connected to the output of bevel gear commutator, and the rocker rotates to install in the bottom that sets up at the cloud platform box.

The beneficial effects of the utility model are as follows: the angle limiter is simple in structure, the stroke of the limiting protruding block can be adjusted through the adjusting screw, so that the positioning accuracy of the output shaft of the worm and gear reduction box is higher when the output shaft of the worm and gear reduction box rotates to the position of 0 degree or 90 degrees, equipment looseness is not easy to occur due to a gap between a worm and a worm wheel, and the service life of the equipment is prolonged.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a top view (with the cover omitted) of the present utility model;

FIG. 3 is a cross-sectional view at A-A in FIG. 2;

Reference numerals illustrate: 1. the device comprises a bracket, a holder box body, a worm gear reduction box, a limit lug, a limit stop, an adjusting screw, an angle sensor, a bevel gear reverser, a rocker and a gear.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

Referring to fig. 1-3: the antenna tripod head in this embodiment, including support 1 and tripod head box 2, be equipped with in the tripod head box 2 and be used for the drive support 1 pivoted rotary drive device, rotary drive device include fixed mounting worm gear reduction box 3 in tripod head box 2, the output shaft and the support 1 fixed connection of worm gear reduction box 3, the main motor is connected to worm gear reduction box 3's input shaft, is equipped with the angle limiter on worm gear reduction box 3's the output shaft, its characterized in that: the angle limiter comprises a limit lug 4 and two limit stops 5, wherein the limit lug 4 is fixedly arranged on an output shaft of the worm gear reduction box 3, the two limit stops 5 are fixedly arranged on the outer wall of the worm gear reduction box 3 or the inner wall of the holder box 2, the limit lug 4 is positioned between the two limit stops 5, and the two limit stops 5 are respectively and fixedly connected with an adjusting screw 6 for adjusting the stroke of the limit lug 4.

When the cradle head is used, the main motor rotates positively and negatively and stops rotating. The motor drives the output shaft of the worm gear reduction box 3 to rotate 0-90 degrees, and the output shaft drives the bracket 1 to rotate, so that lodging control of devices such as a radar antenna, a camera or a searchlight is realized. When the output shaft of the worm gear reduction box 3 rotates, the stroke of the rotary displacement of the limiting lug 4 is limited by the two limiting stops 5, so that the safety of control of the cradle head equipment is improved, when the product is assembled and debugged, a worker can axially move the product through rotating the adjusting screw 6, the stroke limitation of the limiting lug 4 is realized, the output shaft of the worm gear reduction box is ensured to be accurately positioned when rotating to a position of 0 DEG or 90 DEG, and equipment looseness is not easy to be caused due to a gap between the worm and the worm gear, so that the service life of the equipment is prolonged. When the gap is increased due to abrasion between the worm and the worm wheel, the position compensation can be conveniently performed by adjusting the limiting distance of the adjusting screw 6.

The two limit stops 5 are respectively provided with a screw hole for connecting the adjusting screw 6, and the axes of the two screw holes are mutually perpendicular. So that the two adjusting screws 6 form an included angle of 90 degrees and can axially displace at the tangential position.

The limiting lug 4 adopts an inner hexagon screw, and two mutually perpendicular through mounting holes are formed in the circumferential surface of the output shaft of the worm gear reduction box 3 and are in threaded connection with the inner hexagon screw. Two mutually through mounting holes can facilitate the installation and the disassembly of the limiting lug 4, and can realize locking when the inner hexagon screws are installed in the two mounting holes, so that the rotating angle is fixed.

An angle sensor 7 is arranged on an output shaft of the worm gear reduction box 3, and the angle sensor 7 and the angle limiter are positioned on the same side of the holder box body 2. The angle sensor 7 can monitor the angle of the output shaft of the worm gear reduction box 3 at the positions of 0 degree and 90 degrees, so that the control equipment can conveniently realize the electric control of the pitching angle range of the cradle head.

The inside of tripod head box 2 is equipped with bevel gear commutator 8, and vice motor is connected to bevel gear commutator 8's input, and rocker 9 is connected to bevel gear commutator 8's output, and rocker 9 rotates to install in the bottom that sets up at tripod head box 2. The rocker 9 can be fixedly provided with a warning lamp, an alarm and other devices, and the auxiliary motor drives the rocker 9 to rotate after being driven by the bevel gear commutator 8, so that the desired audible and visual alarm effect is obtained. In addition, the main motor and the auxiliary motor can be the same double-output-shaft motor, so that when the motor is damaged, the worm gear reduction box 3 can be driven to work by manually rotating the rocker 9.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims (5)

1. Antenna cloud platform, including support (1) and cloud platform box (2), be equipped with in cloud platform box (2) and be used for the drive support (1) pivoted rotary drive device, rotary drive device include worm gear reduction box (3) of fixed mounting in cloud platform box (2), the output shaft and support (1) fixed connection of worm gear reduction box (3), the main motor is connected to the input shaft of worm gear reduction box (3), be equipped with the angle limiter on the output shaft of worm gear reduction box (3), its characterized in that: the angle limiter comprises a limiting lug (4) and two limiting stop blocks (5), wherein the limiting lug (4) is fixedly arranged on an output shaft of a worm gear reduction box (3), the two limiting stop blocks (5) are fixedly arranged on the outer wall of the worm gear reduction box (3) or the inner wall of a cradle head box body (2), the limiting lug (4) is positioned between the two limiting stop blocks (5), and the two limiting stop blocks (5) are connected with adjusting screws (6) for adjusting the stroke of the limiting lug (4) in a threaded mode.

2. The antenna pan-tilt of claim 1, wherein: the two limit stops (5) are respectively provided with a screw hole for connecting the adjusting screw (6), and the axes of the two screw holes are mutually perpendicular.

3. The antenna pan-tilt of claim 1, wherein: the limiting lug (4) adopts an inner hexagon screw, and two mutually perpendicular through mounting holes are formed in the circumferential surface of an output shaft of the worm gear reduction box (3) and are in threaded connection with the inner hexagon screw.

4. The antenna pan-tilt of claim 1, wherein: an angle sensor (7) is arranged on an output shaft of the worm gear reduction box (3), and the angle sensor (7) and the angle limiter are positioned on the same side of the holder box body (2).

5. The antenna pan-tilt of claim 1, wherein: the inside of cloud platform box (2) is equipped with bevel gear commutator (8), and vice motor is connected to the input of bevel gear commutator (8), and rocker (9) are connected to the output of bevel gear commutator (8), and rocker (9) rotate and install in the bottom that sets up at cloud platform box (2).