JP5216484B2 - Rotating body drive mechanism - Google Patents

Description

  The present invention relates to a rotating body drive mechanism.

Patent Document 1 discloses a technique related to a repetitive motion body that performs repetitive motion using heat of vaporization of water.
JP 2007-82924 A

  By the way, Patent Document 1 describes that the power is extracted from the repetitive moving body, but there is no specific description on how to extract the power from the repetitive moving body.

  The present invention has been made in view of the above-described circumstances, and provides a rotating body drive mechanism that can extract power from a repetitive moving body that repetitively operates by condensing and expanding an internal liquid using the evaporation latent heat of water. The purpose is to provide.

In order to achieve the above object, the present invention provides a rotating body having an output shaft and a pair of liquid storage chambers that are provided in the rotating body and that communicate with each other in a manner that a weight is movably accommodated. A weight mechanism in which a liquid having a low boiling point is sealed in a liquid storage chamber, and a moisture application mechanism that supplies moisture to the outline of one of the liquid storage chambers. The liquid in the phase is decompressed by condensing, and the liquid in the other liquid storage chamber is moved to the one liquid storage chamber side together with the weight through the communication path, and the rotating body is moved by the displacement of the weight. Rotating drive , the communication path is a tubular body, both end faces of the tubular body are closed, and the tubular body is connected to a pair of openings through an opening provided on the rotational direction side of the tubular outer periphery in the vicinity of the both end faces. A plurality of weight mechanisms communicated with the liquid storage chamber Provided with a phase shift in the circumferential direction, the moisture applying mechanism is configured such that a flexible abdomen provided in a part of a flow path to which water is supplied is pressed by a protrusion of the rotating body. A predetermined amount of moisture is given to the outer shell of the one liquid storage chamber .
According to this configuration, power can be extracted from the repetitive moving body using the heat of water.

Further, according to this configuration, while limited by two end faces of the movement of the weight, the liquid between the liquid reservoir chamber can be possible to move.

Moreover , according to this structure, an output can be continuously acquired irrespective of a rotation angle by using the several weight mechanism from which a phase differs in the circumferential direction.

In addition to the above invention, another invention is characterized in that the plurality of weight mechanisms are provided at intervals in the axial direction of the output shaft.
According to this configuration, the output can be improved by providing the number of weight mechanisms corresponding to the length of the output shaft.

In addition to the above invention, another invention is characterized in that the plurality of weight mechanisms are provided in a peripheral portion of the output shaft.
According to this structure, the output with respect to the length of an output shaft can be improved by providing a plurality of weight mechanisms around the output shaft.

In addition to the above invention, another invention is characterized in that the plurality of weight mechanisms are provided radially about the axis of the output shaft.
According to this configuration, the output with respect to the length of the output shaft can be improved, and since there are a plurality of weight mechanisms at the same position, the attachment of the weight mechanism to the rotating body can be simplified. Can do.

Moreover , according to the structure of Claim 1 , with a simple structure, a water | moisture content can be provided to a liquid storage chamber at a desired timing.

According to another aspect of the invention, in addition to the above-described invention, an outer shell of the liquid storage chamber is covered with a wetting member that can contain moisture, and the moisture applying mechanism applies moisture to the wetting member. It is characterized by.
According to this structure, evaporation of water can be promoted by increasing the surface area.

  ADVANTAGE OF THE INVENTION According to this invention, the rotary body drive mechanism which can take out motive power from the repetitive motion body using the heat of water can be provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(A) 1st Embodiment FIG. 1: is a figure which shows the structural example of the rotary body drive mechanism 10 which concerns on 1st Embodiment of this invention. As shown in this figure, the rotating body drive mechanism 10 includes a rotating body 20 having output shafts 31 and 32, four weight mechanisms 50 disposed inside the rotating body 20, and four water supply nozzles 70. doing. Here, the rotating body 20 is made of, for example, a metal or resin mesh member and has a cylindrical shape. Output shafts 31 and 32 are fixed to substantially center portions of the end surfaces 21 and 22 of the rotating body 20 in a state of projecting in the normal direction, and outer peripheries of the end surfaces 21 and 22 are surrounded by a side surface 23. The rotating body 20 is supported so as to be rotatable about the output shafts 31 and 32. Four weight mechanisms 50 are arranged inside the rotating body 20 with a predetermined interval in the axial direction of the output shafts 31 and 32 and with a phase shifted in the circumferential direction.

  FIG. 2 is a cross-sectional view illustrating a configuration example of the weight mechanism 50. As shown in FIG. 2, the weight mechanism 50 is configured by connecting two liquid storage chambers 60 a and 60 b to each other through a communication pipe 51. Here, the communication pipe 51 is made of glass, resin, metal, or the like having a hollow cylindrical shape, and both ends are closed by the end faces 52a and 52b, and an opening 53a is provided in the vicinity of the end faces 52a and 52b. , 53b are provided. A weight 54 made of glass, resin, metal, or the like is movably disposed inside the communication pipe 51. The length of the weight 54 in the axial direction is set to about ¼ of the length of the communication pipe 51 in the axial direction.

  At both ends of the communication pipe 51, there are provided liquid storage chambers 60a and 60b having hollow cylindrical shapes made of glass, resin, metal or the like. The communication pipe 51 passes through the bottom surfaces 63a and 63b of the liquid storage chambers 60a and 60b, and is arranged so that the end surfaces 52a and 52b abut against the top surface back surfaces 64a and 64b. Tongue pieces 65a and 65b are provided on part of the side surfaces 61a and 61b in the vicinity of the top surfaces 62a and 62b of the liquid storage chambers 60a and 60b. Holes 615a and 615b are provided at substantially central portions of the tongue pieces 65a and 65b. A screw 27 is inserted through the holes 615a and 615b and fixed to the side surface 23 of the rotating body 20. The liquid storage chambers 60a and 60b are filled with liquids 67a and 67b having a low boiling point such as methylene chloride, acetone, butane, and ethyl alcohol, and the internal pressure is lower than the atmospheric pressure (depressurized state). Is done. The side surfaces 61a and 61b, the top surfaces 62a and 62b, and the bottom surfaces 63a and 63b of the liquid storage chambers 60a and 60b are respectively covered with covering cloths 66a and 66b made of a wet material such as felt. Note that the weight 54 can also be made of a material having a lower density than the encapsulated liquids 67a and 67b. According to such a configuration, since the weight 54 floats in the liquid in the communication pipe 51, even if there is a certain gap between the inner wall surface of the communication pipe 51 and the weight 54, The weight 54 can be smoothly moved in the communication pipe 51 in accordance with the movement of the liquid.

  FIG. 3 is a view for explaining an arrangement state of the weight mechanism 50 in the rotating body 20. FIG. 3 shows a state in which the rotating body 20 shown in FIG. 1 is viewed from the direction of the output shaft 31. As shown in FIGS. 1 and 3, four weight mechanisms 50 are arranged in the rotating body 20 at a predetermined distance so as not to interfere with each other in the axial direction of the rotating body 20, and in the circumferential direction. Are arranged with a predetermined phase difference. More specifically, the four weight mechanisms 50 are arranged, for example, so as to be separated from each other so that the communication pipes 51 do not contact each other with respect to the axial direction of the rotating body 20 and are shifted in phase by 45 degrees in the circumferential direction. Be placed. The example of FIGS. 1 and 3 is an example in which four weight mechanisms 50 are arranged. However, in the case of five or more or three or less, the phase difference of each weight mechanism 50 is approximately. It is desirable to arrange them to be equal. For example, three cases can be arranged with a phase difference of 60 degrees, and five cases can be arranged with a phase difference of 36 degrees. Thereby, an output can be obtained continuously. In order to make the apparatus more compact, it is desirable to reduce the axial arrangement interval of the weight mechanism 50.

  As shown in FIG. 1, a total of eight screw holes 26 for fixing each weight mechanism 50 with screws 27 are provided on the side surface 23 of the rotating body 20. A total of eight water supply holes 24 through which water dropped from the water supply nozzle 70 passes are provided at positions where the top surfaces 62 a and 62 b of the weight mechanisms 50 on the side surface 23 are disposed.

  As shown in FIG. 1 and FIG. 3, four water supply nozzles 70 are arranged at a position through which the water supply hole 24 above the rotating body 20 passes in the vertical direction. Each water supply nozzle 70 is supplied with water stored in a water tray (not shown). A water supply port 71 is formed at the end of the water supply nozzle 70, and water is dropped from the water supply port 71. An abdomen 72 that protrudes in a convex shape and is formed of a flexible member is provided at a part of the water tray side of the water supply port 71 and on the lower side in the vertical direction. When the protrusion 25 provided on the rotating body 20 comes into contact with the abdomen 72, the pressure inside the water supply nozzle 70 rises, and about one drop of water is dripped from the water supply port 71. Since the opening of the water supply port 71 is very small, water does not drip when the abdomen 72 is not pressed by the protrusion 25. The positional relationship among the water supply port 71, the abdomen 72, the water supply hole 24, and the protrusion 25 is adjusted in advance, and when the water supply hole 24 reaches the top, the abdomen 72 is pressed by the protrusion 25, Water is dripped. The liquid level of water stored in the water tray is controlled so as to be always constant. More specifically, when the liquid level falls below a predetermined position, the water supply valve to which the float floated on the liquid level is connected is opened to supply water, and the liquid level reaches the predetermined position. In this case, the water supply valve is closed and the water supply is stopped. By such an operation, since the liquid level of the water tray is always kept constant, when the abdomen 72 is pressed, a constant amount of water is always dripped, and when the abdomen 72 is not pressed, Water can be prevented from dripping naturally.

  Next, the operation of the first embodiment will be described. When starting the rotating body drive mechanism 10, the supply of water to a water tray (not shown) is started and a rotational force in the normal rotation direction is applied to the output shafts 31 and 32. Specifically, the rotational force in the direction of the arrow shown in FIG. 1 is applied to the output shafts 31 and 32 by, for example, a starting motor. When the rotating body 20 is rotated and the liquid storage chamber 60a of the weight mechanism 50 existing at the front reaches the top of the rotating body 20, as shown in FIG. 3, the abdomen 72 of the water supply nozzle 70 is pressed by the protrusion 25. Is done. As a result, water is dripped from the water supply port 71, passes through the water supply hole 24, and reaches the covering cloth 66a that covers the top surface 62a of the liquid storage chamber 60a. When the covering cloth 66a becomes wet with water, the water is vaporized from the covering cloth 66a and takes heat of vaporization. When the heat of vaporization is deprived, the temperature of the liquid storage chamber 60a decreases, and the gas phase liquid 67a stored inside condenses into a liquid. As a result, the pressure inside the liquid storage chamber 60a is reduced, so that the pressure of the liquid storage chamber 60a is lower than that of the liquid storage chamber 60b. Thereby, the weight 54 in the communication pipe 51 rises from the bottom to the top in FIG. When the weight 54 reaches the end surface 52a, it stops there. At this time, the liquid 67b stored in the liquid storage chamber 60b is similarly moved from the liquid storage chamber 60b to the liquid storage chamber 60a. As a result, the center of gravity of the weight mechanism 50 moves upward from the center of the weight mechanism 50.

  In the state where the center of gravity of the weight mechanism 50 existing closest to the center moves upward from the center, when the rotating body 20 is continuously rotated, the weight mechanism 50 is inclined to the left from the vertical direction. As described above, since the center of gravity of the weight mechanism 50 is moved upward, the weight mechanism 50 generates a rotational force in the direction indicated by the arrow in FIG.

  When the rotating body 20 is further rotated, the liquid storage chamber 60a of the second weight mechanism 50 from the right side shown in FIG. 1 reaches the top, and water is dripped from the second water supply nozzle 70 from the right side. As a result, as in the case described above, the pressure in the liquid storage chamber 60a decreases, and the weight 54 and the liquid 67b move from the liquid storage chamber 60b to the liquid storage chamber 60a. As a result, the center of gravity of the weight mechanism 50 is moved upward from the center. Such an operation is also executed for the third and fourth weight mechanisms 50 from the right side shown in FIG.

  When the operation described above is continuously executed, the position of the weight 54 in each weight mechanism 50 is as shown in FIG. That is, on the left side of FIG. 3, since the weight 54 has moved to the outer peripheral side (side surface 23 side) of the rotating body 20, a moment of force is generated when the entire rotating body 20 is viewed. As a result, the rotating body 20 rotates in the direction of the arrow shown in FIG. Once the rotation is started, the operation described above is continuously executed, so that the rotation in the direction of the arrow shown in FIG. 1 is maintained. Since such rotational force can be taken out via the output shafts 31 and 32, other devices can be driven by the rotational force. In addition, what is necessary is just to stop dripping of water, when stopping rotation.

  As described above, in the first embodiment, the plurality of weight mechanisms 50 are shifted in phase in the circumferential direction and provided with a predetermined interval in the axial direction so that water is dripped from the water supply nozzle 70. Therefore, power can be continuously taken out from the repetitive moving body.

  In the first embodiment, the weight 54 is sealed inside the communication pipe 51. Thereby, when the weight mechanism 50 is in a horizontal state, part of the liquid may return to the liquid storage chamber side where water is not dripped, but the weight 54 is connected to the inner wall surface of the communication pipe 51. Therefore, the rotation of the center of gravity can be maintained, so that smooth rotation can be obtained.

  In the first embodiment, the openings 53 a and 53 b are provided on the rotation direction side of the outer peripheral surface of the communication pipe 51. Thereby, when the liquid remains in the communication pipe 51, the liquid flows into the liquid storage chamber where the condensation is generated from the opening located on the lower side in the vertical direction. Can maintain the correct rotation.

  Moreover, in 1st Embodiment, since the protrusion 25 was provided in the rotary body 20, the abdominal part 72 of the water supply nozzle was pressed by the said protrusion 25, and water was dripped, water can be dripped at an appropriate position with a simple configuration. It can be dripped and a rotational force can be continuously obtained from the rotating body 20.

  Further, in the first embodiment, a member having a cylindrical shape is used as the rotating body 20 and the weight mechanism 50 is fixed therein. For example, the communication pipe 51 of the weight mechanism 50 is used as the output shaft. Fixing can be facilitated as compared to fixing. In addition, since the rotating body 20 is made of a mesh member, water that has been dripped and vaporized can escape to the outside, so that the vapor pressure (humidity) in the rotating body 20 increases and water cannot be vaporized. Can be prevented.

(B) Second Embodiment FIG. 4 is a diagram showing a rotating body drive mechanism 100 according to a second embodiment of the present invention. The rotating body drive mechanism 100 shown in this figure has a rotating body 120, an output shaft 130, eight weight mechanisms 150, and a water supply nozzle 170. Here, the rotating body 120 is formed of, for example, a substantially disk-shaped member made of metal or resin, and the output shaft 130 is inserted and fixed at the center thereof, and is radially centered on the axis of the output shaft 130. Eight weight mechanisms 50 are fixed. A plurality of protrusions 125 are provided on the outer peripheral surface of the rotating body 120. In the weight mechanism 150, the positions of the tongue pieces 165a and 165b are changed from the positions substantially parallel to the top faces 62a and 62b shown in FIG. 2 to the positions substantially parallel to the side face 61a. Other configurations are the same as those in FIG. The water supply nozzle 170 has an abdomen 172, the tip of the abdomen 172 branches into two, and one has a water supply port 171a for dripping water onto the top surface 62a of the liquid storage chamber 60a in the vertical direction, The other has a water supply port 171b through which water is dropped to the top surface 62b of the liquid storage chamber 60b in the vertically lower direction via the branch pipe 173. The water supply nozzle 170 is connected to the bottom surface of a water tray (not shown), and water stored in the water tray is supplied. The liquid level of the water stored in the water tray is controlled so as to be always constant. More specifically, when the liquid level falls below a predetermined position, the water supply valve to which the float floated on the liquid level is connected is opened to supply water, and the liquid level reaches the predetermined position. In this case, the water supply valve is closed and the water supply is stopped. By such an operation, since the liquid level of the water tray is always kept constant, when the abdomen 172 is pressed, a constant amount of water is always dripped, and when the abdomen 172 is not pressed, Water can be prevented from dripping naturally.

  Next, the operation of the second embodiment will be described. When starting the rotary body drive mechanism 100, the supply of water to a water tray (not shown) is started, and a rotational force in the normal rotation direction is applied to the output shaft 130. Specifically, the rotational force in the direction of the arrow shown in FIG. 4 is applied to the output shaft 130 by, for example, a starting motor. When the rotating body 120 is rotated and enters the state shown in FIG. 4, the abdomen 172 of the water supply nozzle 170 is pressed by the protrusion 125. As a result, water is dripped from the water supply ports 171a and 171b, respectively, and the covering cloth 66a covering the top surface 62a of the liquid storage chamber 60a of the weight mechanism 50 positioned above and the liquid storage of the weight mechanism 50 positioned below. And the covering cloth 66b covering the top surface 62b of the chamber 60b. When the covering cloths 66a and 66b are wetted by water, the water is vaporized from the covering cloths 66a and 66b and takes heat of vaporization. When the heat of vaporization is taken away, the temperature of the liquid storage chambers 60a and 60b decreases, so that the gas-phase liquids 67a and 67b stored inside condense into liquid. As a result, the pressure inside the liquid storage chambers 60a and 60b decreases. As a result, in the upper weight mechanism 50, the pressure in the liquid storage chamber 60a is lower than that in the liquid storage chamber 60b, and in the lower weight mechanism 50, the pressure in the liquid storage chamber 60b is lower than that in the liquid storage chamber 60a. . Then, in both the upper and lower weight mechanisms 50, the weight 54 in the communication pipe 51 moves from the bottom to the top in FIG. At this time, in the upper weight mechanism 50, the liquid 67b moves from the liquid storage chamber 60b to the liquid storage chamber 60a, and in the lower weight mechanism 50, the liquid 67a flows from the liquid storage chamber 60a to the liquid storage chamber 60b. Moving.

  When a rotational force is further applied to the output shaft 130, the next weight mechanism 50 moves to a position parallel to the vertical direction, and water drops from the water supply ports 171a and 171b by the same operation as described above. Then, the weight 54 moves from the bottom to the top in FIG. By continuing such an operation, the weight 54 moves to the outer peripheral side of the rotating body 120 in the weight mechanism 50 located on the left side of FIG. 4, and the weight 54 moves in the weight mechanism 50 located on the right side. It moves to the inner peripheral side of the rotating body 120. As a result, when the entire rotating body 120 is viewed, a moment of force is generated, so that the rotating body 120 rotates in the direction of the arrow shown in FIG. Once the rotation is started, the above-described operation is continuously performed, so that the rotation in the direction of the arrow shown in FIG. 4 is maintained. Since such rotational force can be taken out via the output shaft 130, other devices can be driven by the rotational force. In addition, what is necessary is just to stop dripping of water, when stopping rotation.

  As described above, in the second embodiment, since the plurality of weight mechanisms 150 are provided radially on the rotating body 120 having a disk shape, the plurality of weight mechanisms 150 are simply attached to the rotating body 120. This is advantageous for mass production.

  In the second embodiment, the weight 54 is sealed inside the communication pipe 51. Thereby, when the weight mechanism 150 is in a horizontal state, a part of the liquid may return to the liquid storage chamber side where water is not dripped, but the weight 54 is connected to the inner wall surface of the communication pipe 51. Therefore, the rotation of the center of gravity can be maintained, so that smooth rotation can be obtained.

  In the second embodiment, the openings 53 a and 53 b are provided on the rotation direction side of the outer peripheral surface of the communication pipe 51. Thereby, when the liquid remains in the communication pipe 51, the liquid flows into the liquid storage chamber where the condensation is generated from the opening located on the lower side in the vertical direction. Can maintain the correct rotation.

  In the second embodiment, since water is dropped on both the upper and lower weight mechanisms 150 of the rotating body 120, both the weight mechanisms 150 existing on the right side and the left side in FIG. The center of gravity can be displaced. Thereby, the rotational force can be effectively extracted from the plurality of weight mechanisms 150.

(C) Modified Embodiment The above-described embodiment is merely an aspect of the present invention, and it is needless to say that modifications and applications can be arbitrarily made within the scope of the present invention.
For example, in each of the above embodiments, a cylindrical member having a length of about ¼ of the length of the communication pipe 51 is used as the weight 54. For example, a cylindrical member having a length other than this is used. Alternatively, a spherical member may be used. In addition, when using a spherical weight, you may make it use not only one but a several weight.

  In the above embodiments, the method of manufacturing the weight mechanism 50, 150 is not described. For example, after the weight 54 is sealed in a hollow cylindrical member, both ends are closed and the end faces 52a, 52b are closed. And openings 53a and 53b are provided on the side surfaces. Then, the liquid storage chambers 60a and 60b are attached to both ends of the communication pipe 51 formed in this way, and after, for example, liquid is injected into the inside from a hole provided in any of the liquid storage chambers, Depressurize and close the hole. Then, after attaching the tongue pieces 65a and 65b, the weight mechanism 50 can be obtained by covering with the covering cloths 66a and 66b. In addition to this, for example, each of two parts obtained by dividing the weight mechanism 50 shown in FIG. 2 in half in the axial direction is formed by integral molding, and after the weight 54 is sealed, these are The weight mechanism 50 may be obtained by bonding.

  In each of the above embodiments, the position at which water is dropped from the water supply nozzles 70 and 170 is the top of the rotating bodies 20 and 120. However, it is possible to set the position to be shifted from the top in the rotational direction. Specifically, in the example of FIG. 3, the position of the water supply port 71 is moved to the left side of the drawing so that water is dropped while the weight mechanism 50 is slightly inclined to the left side. Further, in the example of FIG. 4, the position of the water supply port 171a is moved to the left side of the drawing, and the position of the water supply port 171b is moved to the right side of the drawing, so that the rotating body 120 is slightly in the arrow direction from the state of FIG. Water may be dripped in a rotated state. With such a configuration, at the time of start-up, it is possible to simply rotate in a predetermined direction simply by dropping water without applying a driving force by an electric motor or the like. In this case, when the rotating body is stopped, it is necessary to stop the rotating body so that the water supply port is directly above the liquid storage chamber. For example, the rotating body can be rotated at a predetermined angle by using a ratchet mechanism or the like. At the same time when the body is stopped and restarted, it can be rotated in a predetermined direction simply by dropping water. More specifically, a ratchet mechanism having a rack provided with a plurality of teeth corresponding to an angle to be stopped and a claw meshing with the teeth of the rack is connected to the output shaft, and the claw is meshed with the tooth when stopped. Can be stopped at a predetermined angle.

  Further, in each of the above embodiments, water is dripped by pressing the abdomen 72, 172 of the water supply nozzles 70, 170 with the protrusions 25, 125. It is also possible to add water dropwise. That is, when the rotation angle of the rotators 20 and 120 is detected and a predetermined rotation angle is reached, the electromagnetic valve is opened for a predetermined time and water is dropped, or pressure is applied to the water by an electrostrictive element or a magnetostrictive element. Or may be dropped. Moreover, you may enable it to adjust a rotation speed by adjusting the quantity which dripped water.

  In each of the above embodiments, the driving force is generated in the rotating bodies 20 and 120 using the heat of vaporization of water. Instead of dripping water, the water is dripped in FIGS. 1 and 4. You may make it contact the liquid or gas of temperature higher than environmental temperature with the liquid storage chamber on the opposite side to the side to perform. Or you may make it contact the liquid or gas of temperature higher than environmental temperature with dripping of water.

  Moreover, in the above 1st Embodiment, although the four weight mechanisms 50 were provided in the inside of the rotary body 20, you may be 5 or more or may be 3 or less. Of course, only one weight mechanism 50 may be provided.

  Moreover, in the above 2nd Embodiment, although the weight mechanism 150 was arrange | positioned radially at the rotary body 120, you may make it arrange | position with a predetermined inclination with respect to a radial line. In the second embodiment, the pair of weight mechanisms 150 are provided at the opposing positions in the diameter direction. However, they may be arranged at a position slightly deviating from the opposing positions. In the second embodiment described above, the number of the rotating bodies 120 is one, but a plurality of rotating bodies 120 may be provided and connected by the output shaft 130. According to such a method, the rotational force appearing on the output shaft can be increased. Furthermore, in the second embodiment, water is dropped on both the upper and lower weight mechanisms 150, but may be dropped only on the upper side or only on the lower side.

It is a perspective view which shows the structural example of the rotary body drive mechanism of 1st Embodiment of this invention. It is sectional drawing of the weight mechanism shown in FIG. It is a side view of the rotary body drive mechanism shown in FIG. It is a perspective view which shows the structural example of the rotary body drive mechanism of 2nd Embodiment of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Rotating body drive mechanism, 20 ... Rotating body, 31 and 32 ... Output shaft, 50 ... Weight mechanism, 70 ... Water supply nozzle, 100 ... Rotating body drive mechanism, 120 ... Rotating body, 130 ... Output shaft, 150 ... Heavy Weight mechanism, 170 ... water supply nozzle.

Claims (5)

A rotating body having an output shaft;
A weight mechanism provided in this rotating body, communicated by a communication path in which a pair of liquid storage chambers are movably accommodated, and each liquid storage chamber is filled with a liquid having a low boiling point;
With a moisture applying mechanism that gives moisture to the outer shell of one liquid storage chamber,
By the operation of the moisture applying mechanism, the liquid in the gas phase in one liquid storage chamber is depressurized by condensing, and the liquid in the other liquid storage chamber is transferred to the one liquid storage chamber together with the weight through the communication path. Moved to the side, the rotary body is driven to rotate by the displacement of the weight ,
The communication path is a tubular body, and both end surfaces of the tubular body are closed, and the tubular body is connected to a pair of liquid storage chambers through openings provided on the rotation direction side of the tubular body outer peripheral portion in the vicinity of the both end surfaces. Communication,
The rotating body is provided with a plurality of weight mechanisms shifted in phase in the circumferential direction,
The moisture applying mechanism is configured such that a flexible abdomen provided in a part of a flow path to which water is supplied is pressed by a protrusion of the rotating body, so that the outer wall of the one liquid storage chamber is A rotating body drive mechanism that provides a predetermined amount of moisture . The rotating body drive mechanism according to claim 1 , wherein the plurality of weight mechanisms are provided at intervals in the axial direction of the output shaft. Rotary body drive mechanism according to claim 2, wherein the plurality of the weight mechanism is provided on the periphery of an output shaft. It said plurality of weight mechanism rotary member driving mechanism according to any one of claims 1 to 3, characterized in that provided radially about the axis of the output shaft. The outer shell of the liquid storage chamber is covered with a wetting member that can contain moisture,
The rotating body drive mechanism according to any one of claims 1 to 4 , wherein the moisture applying mechanism applies moisture to the wetting member.

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