CN217135573U

CN217135573U - Transmission device of PTZ dome camera

Info

Publication number: CN217135573U
Application number: CN202220640841.9U
Authority: CN
Inventors: 杨玉东; 吕增良
Original assignee: Shenzhen Huisun Technology Co ltd
Current assignee: Shenzhen Huisun Technology Co ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-08-05
Anticipated expiration: 2032-03-23

Abstract

The utility model discloses a PTZ hemisphere camera transmission belongs to camera technical field, including gear drive mechanism, gear drive mechanism includes: the first motor is arranged on the inner wall of the sphere; the gear mechanism is driven by a first motor and is arranged on the outer side of the ball body, the inner side of the bracket and the inner side of the base, the gear mechanism comprises an end face gear of which the axis is collinear with the axis of the base, and the end face gear is arranged at one end of the base close to the bracket; when the output shaft of the first motor rotates, the bracket and the ball body are driven to rotate around the axis direction of the base through the gear mechanism. The utility model discloses a PTZ dome camera transmission compact structure, small can reduce PTZ dome camera occupation space.

Description

Transmission device of PTZ dome camera

Technical Field

The utility model belongs to the technical field of the camera, especially, relate to a PTZ hemisphere camera transmission.

Background

The PTZ dome camera is an integrated dome camera, and has the advantages of high running speed, accurate positioning, flexible control and the like, the traditional mechanism of the traditional PTZ dome camera comprises two transmission mechanisms, wherein a driving ball body is mainly positioned inside the ball body around the axis rotating transmission mechanism parallel to the end surface of a base and a driving motor of the driving ball body, a driving support and the ball body are positioned on the base around the base axis rotating transmission mechanism and the driving motor of the transmission mechanism, and the driving support and the ball body adopt synchronous belts or gear transmission around the base axis rotating transmission mechanism generally, so that the base structure is complex, the size is large, and the PTZ dome camera needs to occupy a large space.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that prior art exists and propose, its purpose provides a compact structure, small, can reduce PTZ dome camera transmission of PTZ dome camera occupation space.

In order to realize above-mentioned purpose, the technical scheme of the utility model a PTZ dome camera transmission is provided, PTZ dome camera include the base, rotate the spheroid of installing in the support with rotating in the support of base, and the support is equipped with the camera lens including relative first side arm and the second side arm that sets up on the spheroid, transmission includes: a gear drive mechanism, the gear drive mechanism comprising: the first motor is arranged on the inner wall of the sphere, and one end of an output shaft of the first motor penetrates through the sphere from a first axial hole in the side wall of the sphere to the inner side of the first side arm; the gear mechanism is driven by a first motor and arranged on the outer side of the sphere, the inner side of the support and the inner side of the base, the gear mechanism comprises an end face gear of which the axis is collinear with the axis of the base, and the end face gear is arranged at one end, close to the support, of the base; when the output shaft of the first motor rotates, the gear mechanism drives the support and the ball body to rotate around the axis direction of the base.

Further, the gear mechanism further comprises a first gear, a second gear and a gear shaft which are all positioned in the containing cavity of the first side arm, wherein the first gear is arranged on an output shaft of the first motor along the direction vertical to the base; the second gear is arranged on a gear shaft along the direction vertical to the base, and the second gear is meshed with the first gear and the end face gear; one end of the gear shaft is fixedly arranged in a gear shaft mounting hole in the inner wall of the accommodating cavity of the first side arm.

Further, a fastener is arranged in a threaded hole in the end part of the output shaft of the first motor, and the fastener is used for mounting the first gear on the output shaft of the first motor; the outer side surface of the first gear is provided with a boss which is coaxial with the threaded hole, and the boss is rotatably installed in the positioning shaft sleeve of the first side arm.

Further, the transmission device further includes: a drive mechanism, the drive mechanism comprising: the output shaft of the second motor and the output shaft of the first motor are arranged along the diameter direction of the sphere, the end part of the output shaft of the second motor penetrates out of the sphere from a second shaft hole in the side wall of the sphere to the inner side of a second side arm, an anti-rotation section is arranged on the side of the end part of the output shaft of the second motor, and the anti-rotation section is arranged in an anti-rotation shaft sleeve of the second side arm of the bracket; when the output shaft of the second motor rotates, the rotation preventing section is fixed on the rotation preventing shaft sleeve, so that the ball body can rotate around the direction of the output shaft of the second motor.

Further, the first motor and the second motor are both provided with motor flanges which are convenient for fixing the motor flanges on the inner wall of the sphere.

Further, a first sealing ring is arranged on the output shaft of the first motor and between the first motor and the first gear, and a second sealing ring is arranged on the output shaft of the second motor and between the second motor and the end face of the anti-rotation shaft sleeve.

Further, the first motor and the second motor both adopt speed reduction stepping motors.

The embodiment of the utility model provides a pair of PTZ dome camera transmission, gear drive mechanism's first motor is fixed in the spheroid inner wall, and the intracavity that holds of first side arm is located to first gear, second gear and gear shaft, and base one end, first motor accessible gear mechanism increase output torque are located to face gear. A second motor of the driving mechanism is fixed on the inner wall of the sphere, and an anti-rotation section of an output shaft of the second motor is fixed on an anti-rotation shaft sleeve of the second side arm. The transmission device is easy to produce and process, can simplify the transmission structure, improves the transmission stability, enables the PTZ dome camera to be compact in structure and small in size, reduces the occupied space of the PTZ dome camera and reduces the manufacturing cost.

Drawings

Fig. 1 is a side view of a PTZ dome provided by an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a cross-sectional view of a PTZ dome camera taken along line B-B of fig. 2 according to an embodiment of the present invention.

Wherein: 1. a base; 2. a support; 21. a first side arm; 211. an accommodating chamber; 212. a gear shaft mounting hole; 213. positioning the shaft sleeve; 22. a second side arm; 221. an anti-rotation shaft sleeve; 3. a sphere; 31. a lens; 32. a first shaft hole; 33. a second shaft hole; 4. a gear drive mechanism; 5. a first motor; 51. an output shaft of the first motor; 52. a threaded hole; 53. a motor flange; 6. a gear mechanism; 61. a face gear; 62. a first gear; 621. a boss; 63. a second gear; 64. a gear shaft; 7. a drive mechanism; 8. a second motor; 81. an output shaft of the second motor; 811. an anti-rotation section; 91. a first seal ring; 92. and a second seal ring.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples:

the embodiment of the utility model provides a PTZ dome camera transmission, as shown in figure 1 to figure 3, PTZ dome camera includes base 1, rotates and installs in base 1's support 2 and rotates the spheroid 3 of installing in support 2, and support 2 is equipped with camera lens 31 including relative first side arm 21 and the second side arm 22 that sets up on spheroid 3, the inside circuit board that is equipped with of spheroid 3. The transmission device comprises a gear driving mechanism 4, the gear driving mechanism comprises a first motor 5 arranged on the inner wall of the sphere 3 and a gear mechanism 6 driven by the first motor, one end of an output shaft 51 of the first motor penetrates out of the sphere 3 to the inner side of the first side arm through a first shaft hole 32 of the side wall of the sphere 3, the gear mechanism 6 is arranged on the outer side of the sphere, the inner side of the support and the inner side of the base, the gear mechanism 6 comprises a face gear 61 with the axis collinear with the axis of the base 1, and the face gear is arranged at one end, close to the support 2, of the base 1. When the output shaft 51 of the first motor rotates, the gear mechanism 6 drives the bracket 2 and the sphere 3 to rotate around the axis direction of the base 1.

The face gear 61 can be integrally formed with the base 1, and the face gear can also be fixedly connected with the base through welding, fastener connection and other modes. First motor 5 is fixed in 3 inner walls of spheroid, and gear 6 is located 3 outsides of spheroid and is located support inboard and base inboard, compares with the drive support 2 that is located the base that uses at present and spheroid 3 around 1 axis pivoted drive mechanism of base, and this gear drive mechanism 4 occupies that base 1 space is less, can make PTZ dome camera compact structure, small, reduces PTZ dome camera occupation space.

In some embodiments, as shown in fig. 2 and 3, the gear mechanism 6 further includes a first gear 62, a second gear 63 and a gear shaft 64, all located in the accommodating cavity 211 of the first side arm 21, wherein the first gear 62 is mounted on the output shaft 51 of the first motor in a direction perpendicular to the base 1; the second gear 63 is arranged on the gear shaft 64 along the direction vertical to the base 1, and the second gear 63 is meshed with the first gear 62 and the end face gear 61; one end of the gear shaft 64 can be fixedly mounted in a gear shaft mounting hole 212 on the inner wall of the accommodating cavity 211 of the first side arm 21 by means of tight fit or welding. The first gear 62, the second gear 63 and the gear shaft 64 are positioned in the accommodating cavity 211 of the first side arm 21, so that the space occupied by the PTZ dome camera can be reduced.

Further, as shown in fig. 2, a fastener is installed in a threaded hole 52 at the end of the output shaft 51 of the first motor, and the fastener is used for installing the first gear 62 on the output shaft of the first motor 5; the outer side surface of the first gear is provided with a boss 621 coaxial with the threaded hole 52, the boss is rotatably mounted in the positioning shaft sleeve 213 of the first side arm 21, and the outer end surface of the boss is provided with a counter bore corresponding to the head of the fastener, so that the fastener can be conveniently mounted.

Further, as shown in fig. 2, the transmission device further includes a driving mechanism 7, the driving mechanism 7 includes a second motor 8 fixedly mounted on the inner wall of the sphere 3, an output shaft 81 of the second motor and an output shaft 51 of the first motor are arranged along the diameter direction of the sphere 3, an end portion of the output shaft 81 of the second motor penetrates through the sphere 3 from the second shaft hole 33 on the side wall of the sphere 3 to the inner side of the second side arm, an anti-rotation section 811 is arranged on an end portion side of the output shaft 81 of the second motor, and the anti-rotation section 811 is mounted in the anti-rotation shaft sleeve 221 of the second side arm 22 of the bracket 2. When the output shaft of the second motor rotates, the rotation-preventing section 811 is fixed to the rotation-preventing sleeve 221, so that the ball 3 can rotate around the output shaft 81 of the second motor. The cross section of the anti-rotation section 811 may be rectangular, polygonal, semicircular, or the like, which can prevent the anti-rotation section 811 from rotating in the anti-rotation hole.

Further, as shown in fig. 2, the first motor 5 and the second motor 8 are both provided with a motor flange 53, and the first motor 5 and the second motor 8 can respectively pass through the motor assembling hole of the motor flange 53 and the corresponding motor installing hole of the inner wall of the sphere 3 through fasteners to fixedly install themselves on the inner wall of the sphere 3.

Further, as shown in fig. 2, a first sealing ring 91 is disposed on the output shaft 51 of the first motor and between the first motor 5 and the first gear 62, a second sealing ring 92 is disposed on the output shaft 81 of the second motor and between the second motor 8 and the end surface of the anti-rotation shaft sleeve 221 of the second side arm 22, and the first sealing ring 91 and the second sealing ring 92 are in close contact with the adjacent surfaces, so as to prevent loosening, and prevent water and dust.

Preferably, the first motor 5 and the second motor 8 are both speed reduction stepping motors.

The embodiment of the utility model provides an among the PTZ dome camera transmission, first motor 5 is fixed in 3 inner walls of spheroid through the fastener, first gear 62 is installed in the output shaft 51 of first motor, face gear 61 is made with base 1 an organic whole, when the output shaft 51 of first motor rotates, can drive first gear 62, second gear 63 that meshes in first gear 62, face gear 61 that meshes in second gear 63 rotates, when base 1 is fixed in the mounting surface, can realize that support 2 and spheroid 3 rotate around base 1 axis direction.

The second motor 8 is fixed on the inner wall of the ball body 3 through a fastener, the anti-rotation section 811 of the output shaft of the second motor is installed in the anti-rotation hole, and when the output shaft 81 of the second motor rotates, the ball body 3 can be driven to rotate around the output shaft 81 of the second motor.

The first motor 5 of the gear driving mechanism 4 of the transmission device is arranged in the sphere 3, the first gear 62, the second gear 63 and the gear shaft 64 are arranged in the accommodating cavity of the first side arm, the end face gear 61 is arranged at one end of the base, and the first motor can increase the output torque through the gear mechanism. The transmission device is easy to produce and process, can simplify the transmission structure, improves the transmission stability, enables the PTZ hemispherical camera to be compact in structure and small in size, reduces the occupied space of the PTZ hemispherical camera, and reduces the manufacturing cost.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a PTZ dome camera transmission, PTZ dome camera include the base, rotate and install in the support of base and rotate the spheroid of installing in the support, and the support is equipped with the camera lens including relative first side arm and the second side arm that sets up on the spheroid, its characterized in that, transmission includes: a gear drive mechanism, the gear drive mechanism comprising: the first motor is arranged on the inner wall of the sphere, and one end of an output shaft of the first motor penetrates through the sphere from a first axial hole in the side wall of the sphere to the inner side of the first side arm; the gear mechanism is driven by a first motor and arranged on the outer side of the ball body, the inner side of the support and the inner side of the base, the gear mechanism comprises a face gear of which the axis is collinear with the axis of the base, and the face gear is arranged at one end, close to the support, of the base; when the output shaft of the first motor rotates, the gear mechanism drives the support and the ball body to rotate around the axis direction of the base.

2. The PTZ dome camera actuator of claim 1, wherein the gear mechanism further comprises a first gear, a second gear and a gear shaft, each disposed within the receiving cavity of the first side arm, wherein the first gear is mounted on the output shaft of the first motor in a direction perpendicular to the base; the second gear is arranged on a gear shaft along the direction vertical to the base, and the second gear is meshed with the first gear and the end face gear; one end of the gear shaft is fixedly arranged in a gear shaft mounting hole in the inner wall of the accommodating cavity of the first side arm.

3. The PTZ dome camera transmission of claim 2, wherein a fastener is mounted in a threaded bore in the end of the output shaft of the first motor, said fastener being adapted to mount the first gear to the first motor output shaft; the outer side surface of the first gear is provided with a boss which is coaxial with the threaded hole, and the boss is rotatably installed in the positioning shaft sleeve of the first side arm.

4. The PTZ dome camera actuator of claim 2, further comprising: a drive mechanism, the drive mechanism comprising: the second motor is fixedly arranged on the inner wall of the sphere, an output shaft of the second motor and an output shaft of the first motor are arranged along the diameter direction of the sphere, the end part of the output shaft of the second motor penetrates out of the sphere from a second shaft hole in the side wall of the sphere to the inner side of a second side arm, an anti-rotation section is arranged on the side of the end part of the output shaft of the second motor, and the anti-rotation section is arranged in an anti-rotation shaft sleeve of the second side arm of the bracket; when the output shaft of the second motor rotates, the rotation preventing section is fixed on the rotation preventing shaft sleeve, so that the ball body can rotate around the direction of the output shaft of the second motor.

5. PTZ dome camera transmission according to claim 4, wherein said first motor and said second motor are provided with motor flanges facilitating the fixing of themselves to the inner wall of the sphere.

6. The PTZ dome camera transmission of claim 4, wherein a first seal ring is disposed on the output shaft of the first motor between the first motor and the first gear, and a second seal ring is disposed on the output shaft of the second motor between the second motor and the end surface of the anti-rotation boss.

7. The PTZ dome camera actuator of claim 4, wherein the first motor and the second motor are each a step down motor.