Underwater intensive high-precision hydraulic camera shooting holder

Abstract

The invention relates to an underwater intensive high-precision hydraulic camera shooting cradle head which comprises a longitudinal rotating mechanism, a transverse rotating mechanism and an internal oil way mechanism, the transverse rotating mechanism is installed on the longitudinal rotating mechanism, and the internal oil way mechanism is communicated with the longitudinal rotating mechanism and the transverse rotating mechanism. The longitudinal rotating mechanism comprises a longitudinal shaft tube, and the transverse rotating mechanism comprises a transverse shaft tube and a rotating shaft installed in the transverse shaft tube. According to the underwater intensive high-precision hydraulic camera shooting pan-tilt, the weight of the pan-tilt is effectively reduced, the flexibility and maneuverability of the pan-tilt are improved, and the pan-tilt does not interfere with an oil pipe like a traditional pan-tilt in the rotating process.

Description

Technical Field

[0001] The present invention relates to the technical field of underwater hydraulic camera pan-tilt, and in particular to an underwater intensive high-precision hydraulic camera pan-tilt. Background Art

[0002] Marine resources occupy 70% of the earth. With its rich biological, mineral and energy resources, it has now become a new focus for human development after the development and utilization of solar energy, wind energy, etc. However, the high-risk marine environment with high pressure, low temperature and limited visibility has become an obstacle to human exploration of the ocean. Therefore, the development of an underwater intensive high-precision hydraulic camera pan-tilt that can adapt to the marine environment has become an important tool for human exploration of marine resources.

[0003] Underwater hydraulic camera pan-tilts can carry different camera hardware and perform multi-angle free shooting operations at different water depths, providing strong hardware support for underwater operations and scientific research observations. Currently, underwater camera pan-tilts are mostly electric and hydraulic. Electric ones mostly use motors for driving, but the load capacity of electric pan-tilts is generally small. Even if a large-load electric pan-tilt is manufactured by connecting motors in series with a large reduction ratio device, due to the small ratio of its load to self-weight, the structure size and mass of the pan-tilt are both large, and it is not suitable for special environments such as strong electromagnetic interference, long-term humidity or underwater. The traditional hydraulic type is composed of multiple swing cylinders, with an overall size being too large and not compact enough. At the same time, the oil pipes cannot be centrally supplied with oil, and during the movement of the equipment, the oil pipes are prone to entanglement, posing a safety hazard to the movement of the equipment. The statements in this part only provide background technical information related to the present invention and do not necessarily constitute prior art. Summary of the Invention

[0004] In view of the above, it is necessary to provide an underwater intensive high-precision hydraulic camera pan-tilt with overall compactness, good flexibility and mobility.

[0005] To this end, the present invention provides an underwater intensive high-precision hydraulic camera pan-tilt, including a longitudinal rotation mechanism, a transverse rotation mechanism and an internal oil circuit mechanism. The transverse rotation mechanism is installed on the longitudinal rotation mechanism, and the internal oil circuit mechanism is respectively connected to the longitudinal rotation mechanism and the transverse rotation mechanism. The longitudinal rotation mechanism includes a longitudinal shaft tube, and the transverse rotation mechanism includes a transverse shaft tube and a rotating shaft installed inside the transverse shaft tube.

[0006] According to the underwater intensive high-precision hydraulic camera pan-tilt described above, the internal oil circuit mechanism includes an oil inlet plate installed at the end of the longitudinal shaft tube, an oil inlet shaft arranged inside the longitudinal shaft tube, and an inner cavity shaft tube sleeved inside the longitudinal shaft tube. The oil inlet shaft is respectively connected to the oil inlet plate and the inner cavity shaft tube.

[0007] According to the underwater intensive high-precision hydraulic camera pan-tilt, a first built-in oil path and a second built-in oil path are arranged in the oil inlet plate, a third built-in oil path and a fourth built-in oil path are arranged in the oil inlet shaft, and a fifth built-in oil path is arranged in the inner cavity shaft tube. The first built-in oil path is communicated with the third built-in oil path, and the second built-in oil path is communicated with the fifth built-in oil path through the fourth built-in oil path.

[0008] According to the underwater intensive high-precision hydraulic camera pan-tilt, the oil inlet shaft is provided with a first flow dividing ring, and the inner cavity shaft tube is provided with a second flow dividing ring. The first flow dividing ring is adapted to the second flow dividing ring, and the fourth built-in oil path and the fifth built-in oil path are communicated through the first flow dividing ring and the second flow dividing ring respectively.

[0009] According to the underwater intensive high-precision hydraulic camera pan-tilt, a first oil cavity and a second oil cavity are formed in the longitudinal shaft tube. The first oil cavity and the second oil cavity are separated by a first fixed vane group and a first rotating vane group, and the first oil cavity and the second oil cavity are respectively communicated with the third built-in oil path in the oil inlet shaft.

[0010] According to the underwater intensive high-precision hydraulic camera pan-tilt, a third oil cavity and a fourth oil cavity are formed in the transverse shaft tube. The third oil cavity and the fourth oil cavity are separated by a second fixed vane group and a second rotating vane group, and the third oil cavity and the fourth oil cavity are respectively communicated with the fifth built-in oil path in the inner cavity shaft tube.

[0011] According to the underwater intensive high-precision hydraulic camera pan-tilt, a first oil inlet and a second oil inlet are respectively formed in the oil inlet plate.

[0012] According to the underwater intensive high-precision hydraulic camera pan-tilt, oil port connectors are respectively connected to the first oil inlet and the second oil inlet.

[0013] According to the underwater intensive high-precision hydraulic camera pan-tilt, the transverse rotation mechanism further includes a pan-tilt mounting plate, and two ends of the pan-tilt mounting plate are respectively connected to two ends of the rotating shaft.

[0014] According to the underwater intensive high-precision hydraulic camera pan-tilt, a positioning mounting bracket is arranged on the pan-tilt mounting plate.

[0015] Compared with the prior art, the above-mentioned underwater intensive high-precision hydraulic camera pan-tilt can control the rotation angle of the pan-tilt by controlling the flow rate and oil pressure of the two hydraulic oil chambers flowing in through the internal oil path mechanism. The pan-tilt rotates flexibly as a whole, with reliable actions and good stability, preventing the oil pipes from falling off and winding around each other when the pan-tilt performs complex movements. Description of the Drawings

[0016] To more clearly illustrate the specific embodiments, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0018] Figure 2 is a first longitudinal sectional view of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0019] Figure 3 is a second longitudinal sectional view of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0020] Figure 4 is a transverse sectional view of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0021] Figure 5 is a schematic structural diagram of the oil inlet plate of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0022] Figure 6 is a sectional view of the oil inlet plate of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0023] Figure 7 is a schematic structural diagram of the oil inlet shaft of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0024] Figure 8 is a sectional view of the oil inlet shaft of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0025] Figure 9 is a partial sectional view of the inner cavity shaft tube of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0026] Figure 10 is a sectional view of the inner cavity shaft tube of the underwater intensive high-precision hydraulic camera pan-tilt of the present invention.

[0027] Main element symbol description

[0028] 1 - Longitudinal rotation mechanism; 2 - Transverse rotation mechanism; 3 - Longitudinal shaft tube; 4 - Transverse shaft tube; 5 - Rotation shaft; 6 - Oil inlet plate; 7 - Oil inlet shaft; 8 - Inner cavity shaft tube; 9 - First built-in oil passage; 10 - Third built-in oil passage; 11 - Fourth built-in oil passage; 12 - Fifth built-in oil passage; 13 - First flow dividing ring; 14 - Second flow dividing ring; 15 - First oil cavity; 16 - Second oil cavity; 17 - First fixed blade group; 18 - First rotating blade group; 19 - Third oil cavity; 20 - Fourth oil cavity; 21 - Second fixed blade group; 22 - Second rotating blade group; 23 - First oil inlet; 24 - Oil port connector.

[0029] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments

[0030] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be described in detail below in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other. In the following description, many specific details are set forth in order to fully understand the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments, and are not intended to limit the present invention.

[0032] In each embodiment, for the convenience of description rather than limiting the present invention, the term "connection" used in the specification and claims of the present invention is not limited to physical or mechanical connection, but may include electrical connection, whether direct or indirect. "Upper", "lower", "below", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0033] Such as Figures 1 to 10As shown in the figure, an underwater intensive high-precision hydraulic camera pan-tilt includes a longitudinal rotation mechanism 1, a lateral rotation mechanism 2 and an internal oil circuit mechanism. The lateral rotation mechanism 2 is installed on the longitudinal rotation mechanism 1, and the internal oil circuit mechanism is respectively connected to the longitudinal rotation mechanism 1 and the lateral rotation mechanism 2. The longitudinal rotation mechanism 1 includes a longitudinal shaft tube 3, and the lateral rotation mechanism 2 includes a lateral shaft tube 2 and a rotating shaft 5 installed inside the lateral shaft tube 2. The single underwater camera pan-tilt of the present invention can carry different types of electronic components and hydraulic components, which can greatly reduce the space occupied by the hydraulic system on the ROV and also provide assembly space for the electronic components.

[0034] The internal oil circuit mechanism includes an oil inlet plate 6 installed at the end of the longitudinal shaft tube 3, an oil inlet shaft 7 arranged inside the longitudinal shaft tube 3, and an inner cavity shaft tube 8 sleeved inside the longitudinal shaft tube 3. Through the internal oil circuit, the oil inlet shaft 7 is respectively connected to the oil inlet plate 6 and the inner cavity shaft tube 8. The internal oil circuit mechanism can realize internal wiring and reduce the interference of external oil pipes.

[0035] A first internal oil circuit 9 and a second internal oil circuit are arranged in the oil inlet plate 6, a third internal oil circuit 10 and a fourth internal oil circuit 11 are arranged in the oil inlet shaft 7, and a fifth internal oil circuit 12 is arranged in the inner cavity shaft tube 8. The first internal oil circuit 9 is connected to the third internal oil circuit 10, and the second internal oil circuit is connected to the fifth internal oil circuit 12 through the fourth internal oil circuit 11. The oil inlet plate 6, the oil inlet shaft 7, and the inner cavity shaft tube 8 are all equipped with corresponding internal oil circuits, which can ensure the internal circulation of hydraulic oil when the pan-tilt rotates.

[0036] The oil inlet shaft 7 is provided with a first flow dividing ring 13, and the inner cavity shaft tube 8 is provided with a second flow dividing ring 14. The first flow dividing ring 13 is adapted to the second flow dividing ring 14, and the fourth internal oil circuit 11 and the fifth internal oil circuit 12 are respectively connected through the first flow dividing ring 13 and the second flow dividing ring 14. The fifth internal oil circuit 12 is controlled through the first flow dividing ring 13 and the second flow dividing ring 14, and then the oil quantities in the third oil cavity 19 and the fourth oil cavity 20 are controlled.

[0037] The above internal oil circuits can respectively control the oil quantities in the first oil cavity 15, the second oil cavity 16, the third oil cavity 19 and the fourth oil cavity 20, so as to control the longitudinal rotation mechanism 1 to realize horizontal rotation and control the lateral rotation mechanism 2 to realize pitch angle adjustment.

[0038] A first oil cavity 15 and a second oil cavity 16 are formed in the longitudinal shaft tube 3. The first oil cavity 15 and the second oil cavity 16 are separated by a first fixed blade group 17 and a first rotating blade group 18. The first oil cavity 15 and the second oil cavity 16 are respectively connected to the third internal oil circuit 10 in the oil inlet shaft 7. The first internal oil circuit 9 and the third internal oil circuit 10 respectively have two oil circuits, which are respectively connected to the first oil cavity 15 and the second oil cavity 16 to respectively control the oil quantities in the first oil cavity 15 and the second oil cavity 16.

[0039] A third oil chamber 19 and a fourth oil chamber 20 are provided in the horizontal shaft tube 4. The third oil chamber 19 and the fourth oil chamber 20 are separated by a second fixed vane group 21 and a second rotating vane group 22. The third oil chamber 19 and the fourth oil chamber 20 are respectively communicated with a fifth built-in oil passage 12 of the inner cavity shaft tube 8. The second built-in oil passage, the fourth built-in oil passage 11 and the fifth built-in oil passage 12 each have two oil passages, which are respectively communicated with the third oil chamber 19 and the fourth oil chamber 20 to respectively control the oil volumes of the third oil chamber 19 and the fourth oil chamber 20.

[0040] The oil inlet plate 6 is respectively provided with a first oil inlet 23 and a second oil inlet. Two first oil inlets 23 can be provided and are respectively communicated with the first built-in oil passage 9. Two second oil inlets can be provided and are respectively communicated with the second built-in oil passage, which is convenient for respectively controlling the rotation of the longitudinal rotation mechanism 1 and the horizontal rotation mechanism 2 to meet the usage requirement of adjusting the camera angle of the pan-tilt head.

[0041] The first oil inlet 23 and the second oil inlet are respectively connected with an oil port connector 24 for convenient oil connection.

[0042] The horizontal rotation mechanism 2 further includes a pan-tilt head mounting plate, and both ends of the pan-tilt head mounting plate are respectively connected with both ends of the rotating shaft 5.

[0043] A positioning mounting bracket is provided on the pan-tilt head mounting plate, making it safer to use.

[0044] Working principle: When the oil fluid enters the first oil chamber 15 or the second oil chamber 16 through the first built-in oil passage 9 of the oil inlet plate 6 and the third built-in oil passage 10 of the oil inlet shaft 7 respectively, it pushes the first rotating vane group 18 to realize the rotation of the inner cavity shaft tube 8. When the oil fluid enters through the second built-in oil passage of the oil inlet plate 6 and the fourth built-in oil passage 11 of the oil inlet shaft 7, since the first flow dividing ring 13 of the oil inlet shaft 7 corresponds to the second flow dividing ring 14 of the inner cavity shaft tube 8, the oil fluid enters the third oil chamber 19 or the fourth oil chamber 20 respectively through the fifth built-in oil passage 12 of the inner cavity shaft tube 8, pushing the second rotating vane group 22 to realize the rotation of the rotating shaft 5.

[0045] The internal oil passage mechanism constitutes the power source and power channel of the underwater hydraulic camera pan-tilt head, improving the current method of directly connecting an independent hydraulic motor and a hydraulic cylinder on the market. By using the internal oil passage to provide power, the external oil pipe layout of the underwater hydraulic camera pan-tilt head is optimized, effectively reducing the weight of the pan-tilt head, improving its flexibility and mobility, and during the rotation process, unlike traditional pan-tilt heads, multiple oil pipes are not prone to interference. The internal oil passages of the pan-tilt head can be neatly arranged, preventing the oil pipes from falling off and entangling with each other during complex movements of the pan-tilt head.

[0046] Among several specific embodiments provided by the present invention, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. In addition, it is obvious that the word "including" does not exclude other units or steps, and the singular does not exclude the plural. The words such as "first" and "second" are used to indicate names and do not represent any specific order.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An underwater intensive high-precision hydraulic camera pan-tilt, characterized in that, It includes a longitudinal rotation mechanism, a transverse rotation mechanism, and an internal oil circuit mechanism. The transverse rotation mechanism is installed on the longitudinal rotation mechanism. The internal oil circuit mechanism is respectively connected to the longitudinal rotation mechanism and the transverse rotation mechanism. The longitudinal rotation mechanism includes a longitudinal shaft tube, and the transverse rotation mechanism includes a transverse shaft tube and a rotating shaft installed inside the transverse shaft tube.

2. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 1, characterized in that, The internal oil circuit mechanism includes an oil inlet plate installed at the end of the longitudinal shaft tube, an oil inlet shaft arranged inside the longitudinal shaft tube, and an inner cavity shaft tube sleeved inside the longitudinal shaft tube. The oil inlet shaft is respectively connected to the oil inlet plate and the inner cavity shaft tube.

3. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 2, characterized in that, The oil inlet plate is provided with a first built-in oil circuit and a second built-in oil circuit. The oil inlet shaft is provided with a third built-in oil circuit and a fourth built-in oil circuit. The inner cavity shaft tube is provided with a fifth built-in oil circuit. The first built-in oil circuit is connected to the third built-in oil circuit, and the second built-in oil circuit is connected to the fifth built-in oil circuit through the fourth built-in oil circuit.

4. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 3, wherein, The oil inlet shaft is provided with a first flow splitting ring, and the inner cavity shaft tube is provided with a second flow splitting ring. The first flow splitting ring is adapted to the second flow splitting ring. The fourth built-in oil circuit and the fifth built-in oil circuit are respectively connected through the first flow splitting ring and the second flow splitting ring.

5. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 3, wherein A first oil cavity and a second oil cavity are formed inside the longitudinal shaft tube. The first oil cavity and the second oil cavity are separated by a first fixed blade group and a first rotating blade group. The first oil cavity and the second oil cavity are respectively connected to the third built-in oil circuit inside the oil inlet shaft.

6. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 3, characterized in that A third oil cavity and a fourth oil cavity are formed inside the transverse shaft tube. The third oil cavity and the fourth oil cavity are separated by a second fixed blade group and a second rotating blade group. The third oil cavity and the fourth oil cavity are respectively connected to the fifth built-in oil circuit of the inner cavity shaft tube.

7. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 2, characterized in that The oil inlet plate is respectively provided with a first oil inlet and a second oil inlet.

8. The underwater intensive high-precision hydraulic camera pan-tilt according to claim 7, characterized in that The first oil inlet and the second oil inlet are respectively connected with oil port connectors.

9. The underwater intensive high-precision hydraulic camera pan-tilt as claimed in claim 1, wherein The transverse rotation mechanism further includes a pan-tilt mounting plate. Both ends of the pan-tilt mounting plate are respectively connected to both ends of the rotating shaft.

10. The underwater intensive high-precision hydraulic camera pan-tilt as claimed in claim 9, wherein A positioning mounting bracket is provided on the pan-tilt mounting plate.

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