KR20150143927A - Pan tilt system by wire power transmission mechanism for under water condition - Google Patents

Abstract

Disclosed is an underwater pan tilt system to which a wire power transmission mechanism is applied. The pan tilt system comprises: an upper moving pan connected to a module for fixing an apparatus; a first and a second motor generating power; a first and a second driving pulley rotating by rotatory power of the first and second motors; a tilting frame connected to the upper moving pan and having four frames at different locations; a first base frame idle pulley; multiple second base frame idle pulleys disposed to be separated from the first base frame idle pulley; and driving wires.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a power transmission mechanism,

The present invention relates to an underwater pan tilt system to which a wire power transmission mechanism is applied.

Pan-tilt system is a device for position control of precision observation equipment. After placing the precision instrument on the upper moving pan of the pan / tilt system, the precision instrument can be rotated up and down (tilting) and panning (panning) through the upper moving pan based on the input signal. One example of such a system is disclosed in Japanese Patent Application Laid-Open No. 2009-003010.

On the other hand, in the case of the conventional pan tilt system including the technique disclosed in the above document, since the integrated type waterproof housing is required in order to be used in water, there is a problem that the weight and volume of the system as a whole increase.

In practice, when the integral waterproof housing is applied, there is a problem that precision position control of the precision observation equipment becomes difficult due to occurrence of water leakage and deformation in the waterproof portion.

In addition, it is difficult to remove at high speed due to the increase in weight due to the application of the integral waterproof housing, which is unstable and has low acceleration.

In particular, considering the fact that the existing gear structure causes frequent failures due to low durability, it is necessary to develop a new and advanced technology for the pan tilt system.

Japanese Patent Application Laid-Open No. 2009-003010

An object of the present invention is to provide an apparatus and method for accurately controlling a position of a precision observation device that requires tilting, tilting, and panning movements in the water, separating from a conventional gear structure, By implementing the power transmission mechanism of the up / down and left / right rotation of the observation equipment, it is possible to solve the problem of waterproofing the whole system as before, as well as reducing the weight and volume of the system and further improving the durability, And to provide a water pan tilt system to which a long-term usable wire power transmission mechanism is applied.

The object is achieved by an upper moving fan connected to an equipment fixing module in which a precision observation equipment is seated and fixed; First and second motors arranged symmetrically with respect to each other in a diagonal direction on the pan tilt base frame to generate power for tilting and panning rotations of the precision observation equipment; First and second drive pulleys connected to the first and second motors and rotated by rotational forces of the first and second motors, respectively; A tilting frame connected to the upper moving fan and having four first to fourth frame pulleys at different positions on the upper portion; A first base frame idle pulley; A plurality of second base frame idle pulleys spaced apart from the first base frame idle pulleys; A first driving wire fixed to the upper moving fan via the first driving pulley, the first base frame idle pulley, and the first frame pulley; And a second driving pulley which is fixed to the upper moving fan via the first driving pulley, the first base frame idle pulley, and the second frame pulley and is disposed in a direction opposite to the first driving wire, 2 drive wire; A third driving wire fixed to the upper moving fan via the second driving pulley, the second base frame idle pulley, and the third frame pulley; And a second driving pulley that is fixed to the upper moving fan via the second driving pulley, the second base frame idle pulley, and the fourth frame pulley, and is disposed in a direction opposite to the third driving wire and is operated separately from the third driving wire And a fourth drive wire. The wire power transmission mechanism is characterized in that it comprises a first drive wire and a fourth drive wire.

A first direction switching pulley connected to the first and second driving wires; And a second direction switching pulley connected to the third and fourth driving wires.

And a plurality of wire fixing tensioners which are provided in the upper moving fan and to which the ends of the first to fourth driving wires are fixed.

The first and second driving wires may be staggered from each other on the plurality of wire fixing tensioners, and the third and fourth driving wires may be staggered from each other.

The upper moving fan may further include a tilting shaft extending from the upper moving fan and connected to the tilting frame, the tilting shaft forming an axis for tilting the upper moving fan.

The upper moving pan and the device fixing module may have a threaded connection structure.

A pair of first wing flanges extending symmetrically to both sides are formed in the apparatus fixing module, a pair of second wing flanges corresponding to the pair of first wing flanges are formed on the upper moving fan, The pair of first wing flanges and the pair of second wing flanges may be formed with a plurality of through holes communicating with each other and screwed together.

Wherein the apparatus fixing module further comprises a plurality of third through holes formed at both ends along the direction of intersection of the pair of first wing flanges and the precision observation equipment is screwed into the apparatus fixing module through the third through holes .

The apparatus fixing module may further include a seating groove portion for positioning the lower end of the precision observation instrument.

According to the present invention, it is possible to smoothly control the position of the precision observation equipment that needs to move up and down (tilting, tilting) and left and right (panning) in the water and by removing the existing gear structure and applying wire and pulley structure, By implementing the power transmission mechanism of the equipment's up / down and left / right rotation, it is possible to solve the problem of waterproofing the whole system as before, as well as to reduce the weight and volume of the system and further improve the durability, There is an effect that can be used.

FIG. 1 is a view showing a state in which an underwater probe is applied to an unmanned underwater probe and a wire-powered transmission mechanism according to the first embodiment of the present invention is installed.
2 is a perspective view showing a combination of a water pan tilt system and a precision observation equipment.
FIG. 3 is an exploded perspective view of FIG. 2. FIG.
4 is a left side view of a water pan tilt system.
5 is a right side view of the water pan tilt system.
Fig. 6 is an enlarged view of the main part of Fig. 3;
7 is a plan view of the upper moving fan.
8 is a view showing an operation in which the upper moving pan is rotated right and left (panning).
9 is a view showing an operation in which the upper moving fan is rotated up and down (tilting).
Figs. 10 to 13 are modifications according to the joining structure of the precision observation equipment, respectively.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. However, the description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effect.

The meaning of the terms described in the present invention should be understood as follows.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It should be understood that the singular " include "or" have "are to be construed as including a stated feature, number, step, operation, component, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

All 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. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present invention.

Embodiments of the present invention will now be described in detail with reference to the drawings. In the description of the embodiments, the same components are denoted by the same reference numerals.

FIG. 1 is a view showing a state in which an unmanned underwater probe is equipped with a wire-powered tilting system and a precision observation device, to which a wire power transmission mechanism according to a first embodiment of the present invention is applied. 5 is a right side view of the water pan tilt system, Fig. 6 is an enlarged view of the main part of Fig. 3, Fig. 7 is an exploded perspective view of the upper FIG. 8 is a view showing an operation in which the upper moving pan is panned and rotated, and FIG. 9 is a view showing an operation in which the upper moving fan is rotated up and down (tilted).

Referring to these drawings, the water pan tilt system according to the present embodiment can be connected to the lower bracket member 110 of the pan tilt base frame 100 of the unmanned underwater probe 10 shown in FIG.

Of course, the submersible pan tilt system according to the present embodiment may be applied to other underwater equipment other than the unmanned underwater probe 10, but the present invention is applied to the unmanned underwater probe 10 in the present embodiment.

The submersible pan tilt system according to the present embodiment, which can be applied to the unmanned underwater probe 10, includes the precision observation equipment 540 which is seated and fixed on the upper equipment fixing module 500 of the upper movement fan 510 (Tilting, see Fig. 9) and left and right (panning, see Fig. 8).

The apparatus for pneumatic tilt using the wire power transmission mechanism according to the present embodiment for rotating the precision observation equipment 540 up and down and right and left comprises an upper moving fan 510, first and second motors 210 and 220, First and second driving pulleys 230 and 240, a tilting frame 400, first and second base frame idle pulleys 581 and 583 and first to fourth driving wires 540, 550, 560 and 570.

The upper moving fan 510 is connected to the equipment fixing module 500 where the precision observation equipment 540 is seated and fixed. The upper moving pan 510 is operated with the precision observation equipment 540.

A tilting shaft 530 extending from the upper movement fan 510 and connected to the tilting frame 400 and forming an axis for tilting the upper movement fan 510 is provided at the lower portion of the upper movement fan 510. The tilting shaft 530 constitutes the center axis of the upper moving fan 510.

An equipment fixing module 500 is mounted on the upper part of the upper moving pan 510 to fix and fix the precision observation equipment 540.

Referring to FIG. 6, the upper moving fan 510 and the equipment fixing module 500 have a screw-coupling structure.

To this end, a pair of first wing flanges 501 extending symmetrically on both sides are formed in the equipment fixing module 500, and a pair of first wing flanges 501 are formed on the upper moving fan 510 A pair of second wing flanges 511 are formed. The pair of first wing flanges 501 and the pair of second wing flanges 511 are formed with a plurality of through holes H1 and H2 communicating with each other. By screwing the through holes H1 and H2 in the aligned state, the upper moving fan 510 and the device fixing module 500 can be screwed together.

A plurality of third through holes H3 and H4 are further formed at both ends of the device fixing module 500 along the direction of intersection of the pair of first wing flanges 501. The third through holes H3 and H4, The precision observation device 540 can be screwed into the equipment fixing module 500 and fixed.

In the upper moving fan 510, a plurality of wire fixing tensioners 520 to which the ends of the first to fourth driving wires 540, 550, 560 and 570 are fixed is provided as shown in FIG.

In this embodiment, a plurality of wire fixing tensioners 520 are applied in the same manner as the first to fourth driving wires 540, 550, 560 and 570.

At this time, the first and second driving wires 540 and 550 are fixed in a staggered state on the plurality of wire fixing tensioners 520, and the third and fourth driving wires 560 and 570 are staggered from each other. This is a means by which the precision observation equipment 540 can be rotated up and down (tilting, see Fig. 9) and left and right (panning, see Fig. 8). In addition, the first and second motors 210 and 220 can respectively have an encoder 212 mounted therein, which is capable of moving the first and second motors 210 and 220, This is to confirm the information.

The first and second motors 210 and 220 are symmetrically disposed on the pan tilt base frame 100 along diagonal directions.

The first and second motors 210 and 220 serve to generate power for tilting and panning the precision observation equipment 540.

In the present embodiment, the first and second motors 210 and 220 are applied, while the mechanisms for transmitting the driving force of the first and second motors 210 and 220 to the pulleys and the wires are implemented to waterproof the electronic devices such as the first and second motors 210 and 220 The remaining parts other than the waterproof housing 200 can be exposed to water, so that the overall system can be lightened.

The first and second driving pulleys 230 and 240 are connected to the first and second motors 210 and 220 and rotated by the rotational force of the first and second motors 210 and 220, respectively.

The tilting frame 400 is connected to the upper moving fan 510. Four first to fourth frame pulleys 411 to 414 are provided on the tilting frame 400 at different positions. The sizes of the first to fourth frame pulleys 411 to 414 may be different from each other.

The first and second base frame idle pulleys 581, 582, and 583 rotatably guide the first to fourth drive wires 540, 550, 560, and 570 individually at corresponding positions.

The first to fourth driving wires 540, 550, 560 and 570 are connected to the first and second motors 210 and 220 through a pulley structure by the power of the precision observation equipment 540 up and down (see FIG. 9) ) Rotational motion.

The first driving wire 540 is connected to the first driving pulley 230 via the first base frame idle pulley 581 and the first frame pulley 411 while the other end is connected to the upper moving fan 510 The tensioner 520 is fixed to one side of the fixed tensioner 520. At this time, a first direction switching pulley 591 is connected to the line of the first driving wire 540.

The second driving wire 550 is connected to the first driving pulley 230 at a position different from the one end of the first driving wire 540, The other end is fixed to one side of the fixing tensioner 520 of the upper moving fan 510 via the pulley 412 and is disposed in a direction opposite to the first driving wire 540 to operate separately from the first driving wire 540 do. That is, when the first drive pulley 230 is rotated by the first motor 210, only one of the first drive wire 540 and the second drive wire 550 can be driven. The first direction switching pulley 591 is also connected to the line of the second driving wire 550.

The third driving wire 560 is connected to the second driving pulley 240 via the second base frame idle pulleys 582 and 583 and the third frame pulley 413 with the other end thereof connected to the upper driving fan 510 The tensioner 520 is fixed to one side of the fixed tensioner 520. At this time, a second direction switching pulley 592 is connected to the line of the third driving wire 560.

The fourth drive wire 570 is connected to the second drive pulley 240 via the second base frame idle pulleys 582 and 583 and the fourth frame pulley 414 at the other end thereof, And is disposed in a direction opposite to the third driving wire 560 and is operated separately from the third driving wire 560. That is, when the second drive pulley 240 is rotated by the second motor 220, only one of the third drive wire 560 and the fourth drive wire 570 can be driven. A second direction switching pulley 592 is also connected on the line of the fourth driving wire 570.

As shown in FIGS. 2 to 4, the first and second drive pulleys 230 and 240 may have a volume such that the first to fourth drive wires 540, 550, 560 and 570 can be wound several times. The first and second driving wires 540 and 550 are connected to the first direction switching pulley 591 and the second and fourth driving wires 560 and 570 are connected to the second direction switching pulley 592, A direction changing pulley 591 and a second direction changing pulley 592 are provided. The first and second base frame idle pulleys 581, 582 and 583 also have a size such that the first to fourth driving wires 540, 550, 560 and 570 can be arranged in two lines.

Hereinafter, the left and right (panning, see FIG. 8) and up and down (tilting, see FIG. 9) rotation of the precision observation equipment 540 will be briefly described.

First, the rotation of the left and right (panning, see FIG. 8) will be described. The first to fourth driving wires 540, 550, 560 and 570 wound in different directions on the first and second driving pulleys 230 and 240 are fixed to the wire fixing (not shown) of the upper moving fan 510 by using the first and second direction switching pulleys 591 and 592, When the first and second motors 210 and 220 are driven in different directions in a state where the first motor 210 is connected to the tensioner 520 and the second motor 220 is driven in the counterclockwise direction The selected one of the first to fourth driving wires 540, 550, 560 and 570 is operated by the pulley structure having the power transmitted thereto so that the upper moving fan 510 can be rotated left or right about the tilting shaft 530 . Accordingly, the precision observation equipment 540 can be rotated to the left or right. If the first motor 210 is driven in the clockwise direction and the second motor 220 is driven in the counterclockwise direction, if the precision observation equipment 540 is rotated to the left, the first motor 210 rotates counterclockwise, If the motor 220 is driven in a clockwise direction, the precision instrumentation 540 can be rotated to the right.

Next, a description will be given of turning up and down (tilting, see FIG. 9). When the first and second motors 210 and 220 are driven in the same direction, for example, when the first and second motors 210 and 220 are all driven in the clockwise direction, unlike the above-described operation, A selected one of the first to fourth driving wires 540, 550, 560 and 570 is operated. At this time, the driving force is simultaneously applied to the upper moving fan 510 in both directions by the selected one of the first to fourth driving wires 540, 550, 560 and 570. The tilting frame 400 connected to the pan tilting base frame 100 is rotated about the rotation axis 420 by the driving force at this time. And can be rotated up and down (tilting). If both the first and second motors 210 and 220 are driven in the clockwise direction and the precision observation equipment 540 is tilted downward, the first and second motors 210 and 220 are driven counterclockwise The precise instrument 540 can be tilted upwards.

According to the panning and tilting system of this embodiment having such a structure and function, it is possible to smoothly control the position of the precision observation equipment 540 that requires tilting, tilting, and panning motion in water, By embodying the power transmission mechanism of the precision observation device 540 by applying the wire and the pulley structure by moving away from the gear structure, it is possible to solve the problem of waterproofing the whole system as in the past, The weight and the volume can be reduced, and furthermore, the durability can be improved, so that it can be used for a long time without any trouble.

In particular, according to the panning and tilting system of the present embodiment, it is possible to eliminate the entire waterproofing means as before, thereby realizing reduction in weight. The waterproof housing 200 having the internal pressure and the waterproof function can be applied only to the electronic devices such as the first and second motors 210 and 220 and the remaining parts other than the waterproof housing 200 can be exposed to the water , The overall system can be lightened.

In addition, in the case of the pan tilt system of the present embodiment, since there are many parts to be exposed, it can be quickly accessed and maintained when a trouble occurs.

In addition, according to the panning and tilting system of the present embodiment, the system can be manufactured in accordance with the intended use of the precision observation apparatus 540 by adjusting only the size of the pulley and the output of the motor.

Figs. 10 to 13 are modifications according to the joining structure of the precision observation equipment, respectively.

10, the equipment fixing module 500a further includes a seating groove 510a through which the lower end of the precision observation equipment 540 is seated.

When the seating recess 510a is further formed in the apparatus fixing module 500a, it is much easier to mount and fix the precision observation apparatus 540 on the apparatus fixing module 500a. In addition, There is an advantage that precise observation equipment 540 can be prevented from being damaged.

11 is the same as FIG. 10 in that a fixation groove 510b for positioning the lower end of the precision observation device 540 is formed in the fixture module 500b.

10 in that an inclined portion 530b is formed at the upper end of the side wall 520b for forming the seating groove portion 510b. When the inclined portion 530b is formed at the upper end of the side wall 520b for forming the seating groove portion 510b as shown in FIG. 10, the precise observation device 540 is placed on the equipment fixing module 500b and fixed This can be much easier. The precision observation equipment 540 can be guided to the inclined portion 530b and mounted on the seating groove portion 510b by the side wall 520b and fixed after the precision observation equipment 540 is not aligned with the direction of the precision observation equipment 540. Therefore, It is possible to easily perform the fixing operation of the equipment 540 and to prevent the expensive precision observation equipment 540 from being damaged in the process.

12 is the same as FIG. 10 in that a seating groove 510c for positioning the lower end of the precision observation device 540 is formed in the device fixing module 500c.

However, a separate cushioning member 540c is further provided in the seating groove portion 510c. If the cushioning member 540c is further provided on the seating groove 510c, there is an advantage that the expensive precision observation equipment 540 can be prevented from being damaged.

13, a seating groove portion 510d for positioning the lower end of the precision observation device 540 is formed in the equipment fixing module 500d, and a cushioning pad 540c is fixed to the seating groove portion 510d 12 are the same as those in Fig.

In this structure, the seating groove portion 510d is further provided with a vibration suppression means 550d. The vibration suppression unit 550d serves to attenuate unnecessary vibration when the precision observation equipment 540 is rotated. If the vibration suppressing unit 550d is provided as shown in FIG. 13, it is possible to provide a more advantageous effect for the fine position control of the precision observation equipment 540.

Even if the structures of FIGS. 10 to 13 described above are applied, it is possible to smoothly control the position of the precision observation equipment 540 that requires tilting, tilting, and panning movement in the water, By implementing a wire and pulley structure to implement the power transmission mechanism of the precision observation device 540 in the up and down and left and right directions, it is possible to solve the problem of waterproofing the entire system as before, and the weight and volume of the system And further, the durability can be improved, so that it can be used for a long time without failures.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

10: unmanned underwater probe 100: pan tilt base frame
110: bracket member 200: waterproof housing
210, 220: first and second motors 230, 240: first and second drive pulleys
400: tilting frames 411 to 414: first to fourth frame pulleys
420: rotating shaft 500: module for fixing equipment
510: upper moving fan 520: tensioner for wire fixing
530: Tilting Shaft 540: Precision Observation Equipment
540: first driving wire 550: second driving wire
560: third driving wire 570: fourth driving wire
581: first base frame idle pulley 582: second base frame idle pulley
591: first direction switching pulley 592: second direction switching pulley

Claims (9)

An upper moving fan connected to an equipment fixing module in which the precision observation equipment is seated and fixed;
First and second motors arranged symmetrically with respect to each other in a diagonal direction on the pan tilt base frame to generate power for tilting and panning rotations of the precision observation equipment;
First and second drive pulleys connected to the first and second motors and rotated by rotational forces of the first and second motors, respectively;
A tilting frame connected to the upper moving fan and having four first to fourth frame pulleys at different positions on the upper portion;
A first base frame idle pulley;
A plurality of second base frame idle pulleys spaced apart from the first base frame idle pulleys;
A first driving wire fixed to the upper moving fan via the first driving pulley, the first base frame idle pulley, and the first frame pulley;
And a second driving pulley which is fixed to the upper moving fan via the first driving pulley, the first base frame idle pulley, and the second frame pulley and is disposed in a direction opposite to the first driving wire, 2 drive wire;
A third driving wire fixed to the upper moving fan via the second driving pulley, the second base frame idle pulley, and the third frame pulley; And
A second frame drive pulley fixed to the upper moving fan via the second drive pulley, the second base frame idle pulley, and the fourth frame pulley, and disposed in a direction opposite to the third drive wire, 4 drive wire. ≪ RTI ID = 0.0 > [0002] < / RTI >
The method according to claim 1,
A first direction switching pulley connected to the first and second driving wires; And
Further comprising a second direction switching pulley connected to the third and fourth driving wires. The wire power transmission mechanism according to claim 1,
The method according to claim 1,
Further comprising a plurality of wire fixing tensioners provided in the upper moving fan to fix the ends of the first to fourth driving wires.
The method of claim 3,
Wherein the first and second driving wires are fixed in a staggered state on the plurality of wire fixing tensioners, and the third and fourth driving wires are fixed in a staggered relationship with each other. Medium duty pan tilt system.
The method according to claim 1,
Wherein the upper moving fan further comprises a tilting shaft extending from the upper moving fan and connected to the tilting frame, the tilting shaft forming a shaft on which the upper moving fan is tilted.
The method according to claim 1,
Wherein the upper moving pan and the device fixing module have a threaded coupling structure.
The method according to claim 6,
A pair of first wing flanges extending symmetrically to both sides are formed in the apparatus fixing module, a pair of second wing flanges corresponding to the pair of first wing flanges are formed on the upper moving fan,
Wherein the pair of first wing flanges and the pair of second wing flanges are formed with a plurality of through holes communicating with each other to be threadedly engaged.
8. The method of claim 7,
The apparatus fixing module further includes a plurality of third through holes formed at both ends along the direction of intersection of the pair of first wing flanges,
And the precision observing device is fixed to the apparatus fixing module by threading through the third through holes.
The method according to claim 1,
Wherein the apparatus fixing module is further provided with a seating groove for positioning the lower end of the precision observation equipment. ≪ RTI ID = 0.0 > 8. < / RTI >

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