JP6611502B2 - Preload guide system and rotating structure - Google Patents

Description

The present invention relates to a precompression guide system and the rotary structure and, more particularly, to preload the guide system and the rotary structure for guiding the movement in the horizontal plane of the large rotating structure.

  For example, Patent Document 1 discloses a preload guide system for restraining a journal that rotates and drives a large-sized rotating structure at a predetermined position by supporting the journal from both sides thereof. The preload guide system described in Patent Document 1 includes two independent preload support systems that adjust the preload applied to the journal of the large rotating structure by connecting the same-side bearings in the same system. By providing two independent preload support systems, even if the journal is displaced in the axial direction due to thermal deformation due to temperature changes or the weight of the large rotating structure, it returns to its original position. Can be made.

U.S. Pat. No. 8,328,423

  Although the preload guide system described in Patent Document 1 can prevent the axial displacement of the journal, it is difficult to prevent the displacement due to the rotation of the rotating structure in the horizontal plane. Therefore, a preload guide system that can prevent misalignment due to rotation in a horizontal plane in addition to preventing misalignment of the journal in the axial direction is desired.

  The present invention has been made to solve the above-described problems, and provides a preload guide system and a rotating structure capable of preventing positional displacement due to rotation in a horizontal plane in addition to axial positional displacement of a journal. The purpose is to do.

Preload guide system according to the present invention, there is provided a preload guide system for guiding the movement in the horizontal plane of the rotary structure for rotation about a horizontal rotational axis, and first and 2 journal, first to eighth Guide bearings and first to fourth support position adjusting mechanisms.
The first journal is a part of a rotating structure that is provided perpendicular to the rotation axis and is rotatably supported. The second journal is a portion of a rotating structure that is rotatably supported and provided perpendicular to the rotating shaft at a predetermined interval in the direction of the rotating shaft of the first journal.
The first guide bearing, press the position where the second journal of the first journal has been determined in the first aspect is a side nonexistent side, for rotatably supporting the first journal. The second guide bearing rotatably supports the first journal by pressing a position corresponding to the first guide bearing on the second side surface of the first journal on the side where the second journal is present. To do. Third guide bearing, the first guide bearing with respect to the vertical plane is a vertical plane including the rotation axis in the first side surface of the first journal press position are on opposite sides, first Support journal rotatably. The fourth guide bearing pushes a position corresponding to the third guide bearing on the second side surface of the first journal, and rotatably supports the first journal. The fifth guide bearing, a first position which is determined on the same side as the first guide bearing with respect to the vertical plane in the third aspect journal is a side of the existing side of the second journal Press to rotatably support the second journal. Sixth guide bearings, press the fifth guide bearing and the corresponding position in the fourth aspect is a side of the second first side of the journal there is no journal rotatably supporting the second journal To do. Seventh guide bearing, and the fifth guide bearing with respect to the vertical plane in the third aspect of the second journal press position on the opposite side, for rotatably supporting the second journal. The eighth guide bearing pushes a position corresponding to the seventh guide bearing on the fourth side surface of the second journal to rotatably support the second journal.
The first support position adjusting mechanism adjusts the displacement amounts of the first guide bearing and the fifth guide bearing so that the sum of the displacement amount of the first guide bearing and the displacement amount of the fifth guide bearing becomes zero. adjust. The second support position adjusting mechanism sets the displacement amounts of the second guide bearing and the sixth guide bearing so that the sum of the displacement amount of the second guide bearing and the displacement amount of the sixth guide bearing becomes zero. adjust. The third support position adjusting mechanism sets the displacement amounts of the third guide bearing and the seventh guide bearing so that the sum of the displacement amount of the third guide bearing and the displacement amount of the seventh guide bearing becomes zero. adjust. The fourth support position adjusting mechanism adjusts the displacement amounts of the fourth guide bearing and the eighth guide bearing so that the sum of the displacement amount of the fourth guide bearing and the displacement amount of the eighth guide bearing becomes zero. adjust.

According to the present invention, in addition to preventing axial displacement of the first and second journals, it is possible to prevent displacement of the first and second journals due to rotation of the rotating structure in the horizontal plane. . Therefore, it is possible to cope with both the axial movement of the first and second journals and the positional deviation due to the rotation in the horizontal plane, and as a result, the preload guide system capable of appropriately preventing the positional deviation, and A rotating structure can be provided.

(A) is a perspective view of the rotating structure according to the embodiment of the present invention. (B) is a left side view of the rotating structure according to the embodiment of the present invention. (C) is a right side view of the rotating structure according to the embodiment of the present invention. It is the schematic diagram which showed the structure of the preload guide system which concerns on embodiment. It is a front view of the journal and bearing unit of the rotating structure according to the embodiment. It is sectional drawing of the positioning mechanism of the preload guide system which concerns on embodiment. It is a schematic diagram (the 1) for demonstrating the effect | action of the preload guide system which concerns on embodiment. It is a schematic diagram (the 2) for demonstrating the effect | action of the preload guide system which concerns on embodiment. It is a schematic diagram (the 3) for demonstrating the effect | action of the preload guide system which concerns on embodiment. It is sectional drawing of the positioning mechanism of the preload guide system which concerns on the modification of embodiment.

  Hereinafter, a rotating structure according to an embodiment of the present invention will be described with reference to FIGS. In order to facilitate understanding, XYZ coordinates are set and referred to as appropriate. The X axis is an axis parallel to the horizontal rotation axis. The Y axis is an axis perpendicular to the X axis in the horizontal plane. The Z axis is an axis perpendicular to the horizontal plane.

As shown in FIG. 1, the rotating structure 1 according to the present embodiment includes a rotating shaft 10 that constitutes a part of the rotating structure 1. Preload guide system 20 for guiding the movement in the horizontal plane of the rotary structure 1. The rotating structure 1 rotates or rotates around a rotating shaft 10 parallel to the X axis. The rotating structure 1 is, for example, a large rotating structure for changing the elevation angle of a large telescope having a 30 m diameter reflecting mirror. In addition, in this Embodiment, although the rotating structure 1 is provided with the rotating shaft 10 as an entity, not only this but the rotating shaft 10 as an entity may not be provided.

The rotating structure 1 includes two journals 11 and 12 provided at both ends of the rotating shaft 10 and perpendicular to the rotating shaft 10. The journals 11 and 12 do not have to be at both ends of the rotating shaft 10 and may be provided with a predetermined interval. The journals 11 and 12 have a cylindrical outer peripheral surface, and are rotatably supported at two lower portions symmetrical in the vertical direction. That is, the journals 11 and 12 are parts of a rotating structure that is rotatably supported. In addition, although the rotary structure 1 which concerns on this Embodiment is provided with the two journals 11 and 12, it is not restricted to this. Rotating structure 1 may include at least two journals 11 and 12.

  The journals 11 and 12 are deformed so as to have a shape that expands downward due to their own weight, for example, a “C” shape that expands downward. Therefore, the journal 11 is provided with bearing units 101 and 103 that support two places on the side surface of the lower part. The journal 12 is provided with bearing units 102 and 104 that support two portions on the side surface of the lower portion thereof. The bearing units 101 and 102 are provided at positions projected on the same position on the YZ plane. The bearing units 103 and 104 are provided at positions symmetrical to the bearing units 101 and 102 with respect to a vertical plane that is a vertical plane including the rotating shaft 10 (a plane parallel to the XZ plane). By doing so, the support for the journals 11 and 12 can be made the same for the two journals and symmetrical about the left and right.

  Although it is desirable to provide the bearing units 101 and 102 at positions that are projected at the same position on the YZ plane, they may be at different positions as long as the effects of the present invention can be obtained. Although it is desirable to provide the bearing units 103 and 104 at positions that are projected at the same position on the YZ plane, they may be at different positions as long as the effects of the present invention can be obtained. Although it is desirable to provide the bearing units 101 and 103 at positions that are symmetrical with respect to the vertical plane, they may be provided at positions that are not symmetrical as long as the effects of the present invention are obtained. Although it is desirable to provide the bearing units 102 and 104 at positions that are symmetric with respect to the vertical plane, they may be provided at positions that are not symmetric as long as the effects of the present invention can be obtained. The bearing units 101 and 103 are present on the same side with respect to the vertical plane, and the bearing units 102 and 104 may be present on the opposite side of the vertical plane from the side where the bearing units 101 and 103 are present.

  FIG. 2 is a schematic diagram showing the configuration of the preload guide system 20 according to the embodiment of the present invention. As shown in FIG. 2, the preload guide system 20 is used to restrain the rotating structure 1 at a predetermined position by adjusting the preload applied to the journals 11 and 12. The preload guide system 20 includes bearing units 101, 102, 103, 104, connecting pipes 33, 43, 53, 63, preload mechanisms 34, 44, positioning mechanisms 54, 64, support systems 30, 40, 50, 60.

  The bearing unit 101 includes a guide bearing 31 and a guide bearing 51 that face each other with the journal 11 interposed therebetween. The bearing unit 102 includes a guide bearing 32 and a guide bearing 52 that face each other with the journal 12 interposed therebetween. The bearing unit 103 includes a guide bearing 41 and a guide bearing 61 that face each other with the journal 11 interposed therebetween. The bearing unit 104 includes a guide bearing 42 and a guide bearing 62 that are opposed to each other with the journal 12 interposed therebetween. The bearing units 101, 102, 103, and 104 are provided in a fixed structure.

  The journal 11 is supported by guide bearings 31 and 41 on the right side surface 11 </ b> R (+ X side surface). The journal 11 is supported by guide bearings 51 and 61 on the left side surface 11L (the surface on the -X side). Further, the journal 12 is supported by guide bearings 32 and 42 on the right side surface 12R (+ X side surface). The journal 12 is supported by guide bearings 52 and 62 on the left side surface 12L (the -X side surface).

  The guide bearing 31 and the guide bearing 51 face each other with the journal 11 in between, and are at the same position in the circumferential direction of the journal 11. Further, the guide bearing 41 and the guide bearing 61 face each other with the journal 11 in between, and are at the same position in the circumferential direction of the journal 11. Similarly, the guide bearing 32 and the guide bearing 52 face each other with the journal 12 in between, and are at the same position in the circumferential direction of the journal 12. The guide bearing 42 and the guide bearing 62 face each other with the journal 12 in between, and are at the same position in the circumferential direction of the journal 12. The guide bearing 31 and the guide bearing 51 are in corresponding positions with the journal 11 in between. The guide bearing 32 and the guide bearing 52, the guide bearing 41 and the guide bearing 61, the guide bearing 42, and the guide bearing 62 are also in corresponding positions with the journal 11 or the journal 12 in between.

  FIG. 3 is a front view of the journal 11 and the guide bearings 41 and 61. As shown in FIG. 3, the guide bearing 41 includes a pressurizing chamber 41a and a bearing member 41b.

  The pressurizing chamber 41a is fixed to a fixed structure (not shown). A space filled with a fluid to be described later is formed inside the pressurizing chamber 41a. The pressurizing chamber 41a is attached so that the bearing member 41b is movable in the axial direction parallel to the rotating shaft 10, and thus the internal volume increases and decreases with the movement of the bearing member 41b. In other words, the position of the bearing member 41b can be determined by adjusting the amount of fluid inside the pressurizing chamber 41a.

  The bearing member 41b is attached to be movable in the axial direction with respect to the pressurizing chamber 41a by way of a flexible member. The bearing member 41b has a roll bearing or the like, and includes a bearing member 41c that contacts the right side surface 11R of the journal with little friction even when the journal 11 rotates, and a shaft portion 41d that protrudes in the + X direction from the bearing member 41c. It is configured. The bearing member 41 c is pressed against the right side surface 11 </ b> R of the journal 11. The tip of the shaft portion 41d is inserted and attached to the inside of the pressurizing chamber 41a.

  The guide bearings 31, 32, 42, 51, 52, 61, 62 other than the guide bearing 41 are equivalent to the guide bearing 41, as shown in FIG. 2, and each includes a pressurizing chamber and a bearing member. .

  As shown in FIG. 2, the connection pipe 33 connects the guide bearings 31 and 32 and the preload mechanism 34. The connecting pipe 33 is filled with fluid. The fluid is preferably a mechanical working oil such as mineral oil. Similarly to the connection pipe 33, the connection pipe 43 connects the guide bearings 41 and 42 and the preload mechanism 44.

  The connection pipe 53 connects the guide bearings 51 and 52 and the positioning mechanism 54. The connecting pipe 53 is filled with fluid. The fluid is preferably a mechanical working oil such as mineral oil. Similarly to the connection pipe 53, the connection pipe 63 connects the guide bearings 61 and 62 and the positioning mechanism 64.

  The preload mechanism 34 is used to adjust the amount of preload applied to the journals 11 and 12 by the bearing members of the guide bearings 31 and 32. The preload mechanism 34 has a cavity formed therein and a spring 34a. The cavity of the preload mechanism 34 communicates with the pressurizing chambers of the guide bearings 31 and 32 through the connection pipe 33. The cavity of the preload mechanism 34 is filled with fluid together with the inside of the connecting pipe 33 and the pressurizing chambers of the guide bearings 31 and 32. The fluid is preferably a mechanical working oil such as mineral oil. The spring 34a is biased in the direction of reducing the volume of the cavity space. By adjusting the elastic coefficient of the spring 34a, the internal pressure of the pressurizing chamber of the guide bearings 31 and 32 is adjusted through the connecting pipe 33, and the magnitude of the preload to the journals 11 and 12 is adjusted.

  The preload mechanism 44 is equivalent to the preload mechanism 34, and the bearing members of the guide bearings 41 and 42 are used to apply preload to the journals 11 and 12. The preload mechanism 44 has a cavity formed therein and a spring 44a. The cavity of the preload mechanism 44 communicates with the pressurizing chambers of the guide bearings 41 and 42 through the connection pipe 43. The cavity of the preload mechanism 44 is filled with fluid together with the inside of the connection pipe 43 and the pressurizing chambers of the guide bearings 41 and 42. The fluid is preferably a mechanical working oil such as mineral oil. The spring 44a biases in the direction so as to reduce the volume of the cavity space. By adjusting the elastic coefficient of the spring 44 a, the internal pressure of the pressurizing chamber of the guide bearings 41 and 42 is adjusted through the connection pipe 43, and the magnitude of the preload applied to the journals 11 and 12 is adjusted together with the preload mechanism 34. .

  As shown in FIG. 4, the positioning mechanism 54 is used to define the initial positions of the journals 11 and 12. The positioning mechanism 54 has a cavity C formed therein and a jack mechanism 70. The cavity C communicates with the pressurizing chambers of the guide bearings 51 and 52 through the connection pipe 53. Although a high pressure is applied to the cavity C, the positioning mechanism 54 includes a mechanism that prevents oil from leaking even if the head 74 moves and the volume of the cavity C changes. The same applies to the cavity C of the positioning mechanism 64, the cavities of the preload mechanisms 34, 44, and the pressurizing chambers of the guide bearings 31, 32, 41, 42, 51, 52, 61, 62. The cavity C is filled with the fluid F together with the inside of the connecting pipe 53 and the pressurizing chambers of the guide bearings 51 and 52. The fluid F is preferably a mechanical working oil such as mineral oil.

  The jack mechanism 70 includes a bolt 71, a nut 72, a rod 73, and a head 74. The bolt 71 is inserted into a through-hole formed in a bent portion 53a that protrudes from the wall portion of the cavity C in the −X direction and then bends in the −Z direction. Bolts 71 are screwed onto the nuts 72. The nut 72 is fixed to the side surface 53b on the + X side of the bent portion 53a. A hole 73 a into which the bolt 71 is inserted is formed on the end surface on the rear end side (−X side) of the rod 73. The head 74 is fixed to the tip end (the end on the + X side) of the rod 73, and is moved in both the + X direction and the −X direction by screwing the bolt 71 into the nut 72. Adjust the volume. As a result, the amount of fluid inside the pressurizing chambers of the guide bearings 51 and 52 is adjusted through the connecting pipe 53 to position the journals 11 and 12.

As shown in FIG. 2, the positioning mechanism 64 is equivalent to the positioning mechanism 54 and is used together with the positioning mechanism 54 to define the initial positions of the journals 11 and 12.
By supporting one side (the left side surfaces 11L, 12L) of the journals 11, 12 with the positioning mechanisms 54, 64, the journals 11, 12 can be positioned around the Z axis and in the X direction. By supporting the opposite sides (right side surfaces 11R, 12R) of the journals 11, 12 with the preload mechanisms 34, 44, the journals 11, 12 can be supported with a constant preload even if the journals 11, 12 move.

In the preload guide system 20 configured as described above, the support system 30 is provided in the axial direction of the guide bearings 31 and 32 on the right side surfaces 11R and 12R on the same side in the axial direction at the same position in the circumferential direction of the journals 11 and 12. The guide bearings 32 and 31 are supported so that the amount of movement cancels out.
The support system 40 supports the guide bearings 42 and 41 so that the movement amounts in the axial direction of the guide bearings 41 and 42 of the right side surfaces 11R and 12R on the same side in the axial direction at the same position in the circumferential direction of the journals 11 and 12 cancel each other. To do.
The support system 50 supports the guide bearings 52 and 51 so that the movement amounts in the axial direction of the guide bearings 51 and 52 of the left side surfaces 11L and 12L on the same side in the axial direction at the same position in the circumferential direction of the journals 11 and 12 cancel each other. To do.
The support system 60 supports the guide bearings 62 and 61 so that the movement amounts in the axial direction of the guide bearings 61 and 62 of the left side surfaces 11L and 12L on the same side in the axial direction at the same position in the circumferential direction of the journals 11 and 12 cancel each other. To do.
In the present invention, the offset can be moved in conjunction with each other so that the total amount of movement of the guide bearings relative to the journals is zero between the guide bearings at the same position as viewed from the journals 11 and 12. Including.

  Next, the operation of the preload guide system 20 will be described with reference to FIGS.

  In the rotating structure 1, the journals 11 and 12 may be deformed due to a temperature change, the weight of the rotating structure 1, or the like. FIG. 5 shows that the rotating structure 1 itself is heated, and the journals 11 and 12 rotate while the rotating structure 1 is deformed so that the journals 11 and 12 move in either the + X direction or the −X direction. It is a schematic diagram for demonstrating operation | movement of the preload guide system 20 when it is carrying out.

  For example, as shown in FIG. 5, when the rotating structure 1 is deformed so that the journal 11 moves in the + X direction (the direction indicated by the arrow A1), in the support system 30, the bearing member of the guide bearing 31 moves in the + X direction. Moving. Then, the volume of the pressurizing chamber of the guide bearing 31 is reduced. Since the volume of the fluid filled in the connecting pipe 33 or the like is constant, the fluid in the pressurizing chamber flows into the pressurizing chamber of the guide bearing 32 through the connecting pipe 33 as indicated by an arrow A3. . Thereby, the bearing member of the guide bearing 32 is pushed out in the −X direction. As a result, the journal 12 is adjusted to move in the −X direction (arrow A2).

  Similarly, in the support system 40, the bearing member 41b of the guide bearing 41 moves in the + X direction. Then, the volume of the pressurizing chamber 41a of the guide bearing 41 is reduced. Since the volume of the fluid in the connecting pipe 43 and the like is constant, the fluid in the pressurizing chamber 41a flows into the pressurizing chamber of the guide bearing 42 through the connecting pipe 43 as indicated by an arrow A4. Thereby, the bearing member of the guide bearing 42 is pushed out in the −X direction. As a result, the journal 12 is adjusted to move in the −X direction (arrow A2).

  As described above, when the rotating structure 1 is deformed so that the journal 11 moves in the + X direction (arrow A1), the journal 12 is adjusted so as to move in the −X direction (arrow A2) by the support systems 30 and 40. Is done. As a result, since the journal 11 and the journal 12 are connected by the rotating shaft 10, the journal 12 moves in a direction opposite to the moving direction of the journal 11, so that the rotating structure 1 returns to a predetermined position. It is corrected to.

  Next, when the rotating structure 1 is deformed so that the journal 12 moves in the −X direction (arrow A2), in the support system 50, the bearing member of the guide bearing 52 moves in the −X direction. Then, the volume of the pressurizing chamber of the guide bearing 52 is reduced. Since the volume of the fluid in the connecting pipe 53 and the like is constant, the fluid in the pressurizing chamber flows into the pressurizing chamber of the guide bearing 51 through the connecting pipe 53 as indicated by an arrow A5. Thereby, the bearing member of the guide bearing 51 is pushed out in the + X direction. As a result, the journal 11 is adjusted to move in the + X direction (arrow A1).

  Similarly, in the support system 60, the bearing member of the guide bearing 62 moves in the −X direction. Then, the volume of the pressurizing chamber of the guide bearing 62 is reduced. Since the volume of the fluid in the connecting pipe 63 and the like is constant, the fluid in the pressurizing chamber flows into the pressurizing chamber of the guide bearing 61 through the connecting pipe 63 as indicated by an arrow A6. Thereby, the bearing member of the guide bearing 61 is pushed out in the + X direction. As a result, the journal 11 is adjusted to move in the + X direction (arrow A1).

  As described above, when the rotating structure 1 is deformed so that the journal 12 moves in the −X direction (arrow A2), the journal 11 is adjusted to move in the + X direction (arrow A1) by the support systems 50 and 60. Is done. As a result, since the journal 11 and the journal 12 are connected by the rotating shaft 10, the journal 11 moves in a direction opposite to the moving direction of the journal 12, so that the rotating structure 1 returns to a predetermined position. And maintained at a predetermined initial position with respect to the X-axis direction.

  6 and 7 are schematic diagrams for explaining the operation of the preload guide system 20 when the rotating structure 1 is deformed so that the journals 11 and 12 rotate around the Z axis.

  For example, as shown in FIG. 6, when the rotating structure 1 is deformed so that the journals 11 and 12 rotate counterclockwise (arrow A <b> 7) in plan view, in the support system 40, the bearing member 41 b of the guide bearing 41 is used. And the bearing member of the guide bearing 42 try to move simultaneously in the + X direction. However, since the volume of the fluid in the connection pipe 43 and the like is constant, the bearing member 41b of the guide bearing 41 and the bearing member of the guide bearing 42 do not move in the + X direction, and as a result, the rotation of the journals 11 and 12 is restricted. Is done.

  Similarly, in the support system 50, the bearing members of the guide bearings 51 and 52 try to move in the −X direction at the same time. However, since the volume of the fluid in the connection pipe 53 and the like is constant, the bearing members of the guide bearings 51 and 52 do not move in the −X direction, and as a result, the rotation of the journals 11 and 12 is restricted.

  Further, as shown in FIG. 7, when the rotating structure 1 is deformed so that the journals 11 and 12 rotate clockwise (arrow A8) in a plan view, in the support system 30, the bearing members of the guide bearings 31 and 32 are provided. Try to move in the + X direction at the same time. However, since the volume of the fluid in the connection pipe 33 and the like is constant, the bearing members of the guide bearings 31 and 32 do not move in the + X direction, and as a result, the rotation of the journals 11 and 12 is restricted.

  Similarly, in the support system 60, the bearing members of the guide bearings 61 and 62 try to move in the −X direction at the same time. However, since the volume of the fluid in the connection pipe 63 and the like is constant, the bearing members of the guide bearings 61 and 62 do not move in the −X direction, and as a result, the rotation of the journals 11 and 12 is restricted.

  As described above, when the rotating structure 1 is deformed so that the journals 11 and 12 rotate around the Z axis (arrows A7 and A8), that is, in a horizontal plane, the support systems 30, 40, 50, and 60 Rotation is regulated. The rotating structure 1 is maintained at a predetermined initial position around the Z axis.

  As described above, the preload guide system 20 according to the present embodiment includes the preload mechanisms 34 and 44 and the positioning mechanisms 54 and 64 as four independent support position adjusting mechanisms. The preload mechanisms 34 and 44 and the positioning mechanisms 54 and 64 are arranged such that the sum of the displacement amount of the guide bearings 31, 41, 51, 61 and the displacement amount of the guide bearings 32, 42, 52, 62 becomes zero. , 41, 51, 61 and the guide bearings 32, 42, 52, 62 are adjusted. For this reason, in addition to the case where the rotating structure 1 is deformed so that the journals 11 and 12 move in either the + X direction or the −X direction, the journals 11 and 12 are deformed so as to rotate around the Z axis. In this case, the rotating structure 1 can be kept at a predetermined initial position. As a result, misalignment of the journals 11 and 12 can be prevented.

  Next, a positioning mechanism 54A according to a modification of the embodiment of the present invention will be described with reference to FIG.

  As shown in FIG. 8, the positioning mechanism 54 </ b> A controls the movement of the head 74 based on the temperature of the fluid F. Specifically, the positioning mechanism 54 </ b> A includes a temperature sensor 81, a control device 82, and an actuator 83 in addition to the jack mechanism 70.

  For example, the temperature sensor 81 is disposed in the connection pipe 53 and detects a temperature change that causes volume expansion or volume reduction of the fluid F in the support system 30.

Based on the detection result of the temperature sensor 81, the control device 82 calculates the volume expansion amount or volume decrease amount of the fluid in the bearing support system due to the temperature change. The volume of the cavity C of the positioning mechanism 54A is determined so that the position of the guide bearings 51 and 52 does not change even if the volume of the fluid expands or decreases. The movable portion 83a of the actuator 83 is controlled so as to move in both the + X direction and the −X direction so that the volume of the cavity C is obtained. The head 74 is supported so as to move together with the movable portion 83a. The head 74 adjusts the volume of the space of the cavity C, thereby adjusting the internal pressure of the pressurizing chambers of the guide bearings 51 and 52 through the connection pipe 53 to position the journals 11 and 12. The positioning mechanism 64A has the same configuration as the positioning mechanism 54A and operates in the same manner.
By these operations, when the preload mechanisms 34 and 44 are pressed at a constant pressure from the opposite side of the journals 11 and 12, the guide bearings 41 and 42 even when the volume of the fluid expands or decreases due to the temperature change. , 61 and 62 are kept constant, and it is possible to prevent displacement of the structure center in the direction of the rotation axis (X axis).

  In the modification of the embodiment of the present invention, since the control device 82 automatically positions the rotating structure 1 based on the temperature of the fluid F, the rotating structure 1 can be appropriately positioned. .

  As mentioned above, although embodiment of this invention was described, this invention is not limited by the said embodiment.

  For example, in the embodiment of the present invention, the rotating structure 1 includes four independent support systems 30, 40, 50, 60. However, it is not limited to this. The rotating structure 1 may include five or more independent support systems.

  Various embodiments and modifications can be made to the present invention without departing from the broad spirit and scope of the present invention. The above-described embodiments are for explaining the present invention and do not limit the scope of the present invention.

1 rotating structure, 10 rotating shaft, 11 journal (first journal), 12 journal (second journal) , 11R right side (first side), 12R right side (third side) , 11L left side (Second side surface ), 12L left side surface (fourth side surface ) , 20 preload guide system, 30 support system (first support position adjustment mechanism), 40 support system (third support position adjustment mechanism), 50 support System (second support position adjustment mechanism), 60 support system (fourth support position adjustment mechanism) , 31 guide bearing (first guide bearing), 32 guide bearing (fifth guide bearing), 41 guide bearing ( third guide bearing), 42 guide bearing (seventh guide bearing), 51 guide bearing (second guide bearing), 52 guide bearing (sixth guide bearing), 61 guide bearing Fourth guide bearing), 62 guide bearing (8 guide bearing) 33 connecting pipe (first connecting pipe) 43 connecting pipe (second connecting pipe) 53 connecting tube (third connecting pipe) 63 connected Pipe (fourth connecting pipe) , 34, 44 Preload mechanism, 34a, 44a Spring, 41a Pressurizing chamber, 41b Bearing member, 41c Bearing member, 41d Shaft part, 53a Bent part, 53b Side face, 54, 54A, 64 Positioning mechanism , 70 Jack mechanism, 71 bolt, 72 nut, 73 rod, 73a hole, 74 head, 81 temperature sensor, 82 control device, 83 actuator, 83a movable part, 101, 102, 103, 104 bearing unit, A1-A8 arrow , C cavity, F fluid.

Claims (7)

A preload guide system for guiding movement in a horizontal plane of a rotating structure rotating around a horizontal rotation axis,
A first journal which is a portion of the rotating structure which is provided rotatably and is rotatably supported;
A second journal that is a part of the rotating structure that is rotatably supported and is provided perpendicularly to the rotating shaft at an interval determined in the direction of the rotating shaft of the first journal;
A first guide bearing that rotatably supports the first journal by pressing a position determined on the first side surface, which is the side surface of the first journal on the side where the second journal does not exist;
A second side surface, which is the side surface on which the second journal is present, of the first journal is pushed at a position corresponding to the first guide bearing to support the first journal rotatably. With guide bearings,
The first journal is pushed by pressing a position existing on a side opposite to the first guide bearing with respect to a vertical plane that is a vertical plane including the rotation axis on the first side surface of the first journal. A third guide bearing rotatably supported;
A fourth guide bearing that rotatably supports the first journal by pressing a position corresponding to the third guide bearing on the second side surface of the first journal;
Pressing a predetermined position existing on the same side as the first guide bearing with respect to the vertical surface on the third side surface, which is the side surface of the second journal on the side where the first journal exists, A fifth guide bearing for rotatably supporting the second journal;
A sixth side surface of the second journal, which is a side surface on the side where the first journal does not exist, is pushed at a position corresponding to the fifth guide bearing to support the second journal rotatably. With guide bearings,
A seventh guide for rotatably supporting the second journal by pushing a position on the third side surface of the second journal opposite to the fifth guide bearing with respect to the vertical surface. With bearings,
An eighth guide bearing that rotatably supports the second journal by pushing a position corresponding to the seventh guide bearing on the fourth side surface of the second journal;
The first guide bearing and the fifth guide bearing adjust the displacement amount so that the sum of the displacement amount of the first guide bearing and the displacement amount of the fifth guide bearing becomes zero. A support position adjustment mechanism;
The second guide bearing adjusts the displacement amount of the second guide bearing and the sixth guide bearing so that the sum of the displacement amount of the second guide bearing and the displacement amount of the sixth guide bearing becomes zero. A support position adjustment mechanism;
A third amount of adjustment of the displacement amount of the third guide bearing and the seventh guide bearing is adjusted so that the sum of the displacement amount of the third guide bearing and the displacement amount of the seventh guide bearing becomes zero. A support position adjustment mechanism;
A fourth amount of adjustment of the fourth guide bearing and the eighth guide bearing is adjusted so that the sum of the displacement amount of the fourth guide bearing and the displacement amount of the eighth guide bearing becomes zero. A preload guide system including a support position adjusting mechanism. A first connecting pipe, a second connecting pipe, a third connecting pipe, and a fourth connecting pipe;
The first guide bearing is attached to a first bearing member that presses the first side surface of the first journal, and the first bearing member is movably attached in an axial direction parallel to the rotation shaft. A first pressurizing chamber whose internal volume increases or decreases with the movement of one bearing member;
The fifth guide bearing is attached to a second bearing member that pushes the third side surface of the second journal, and the second bearing member is movably mounted in the axial direction. A second pressurizing chamber whose internal volume increases or decreases with
The first pressurizing chamber and the second pressurizing chamber communicate with each other through the first connecting pipe, and fluid is supplied to the first pressurizing chamber, the second pressurizing chamber, and the first connecting pipe. Enclosed,
When the first journal or the second journal moves from a predetermined position, the internal volume of the first pressurizing chamber or the second pressurizing chamber changes when the first support position adjusting mechanism is moved. , based on the change in the internal volume, said second bearing member and the first bearing member is moved, the said first guide bearing the displacement amount and the fifth guide bearing of the first bearing member Adjusting the displacement amount of the first bearing member of the first guide bearing and the second bearing member of the fifth guide bearing so that the sum of the displacement amount of the second bearing member becomes zero;
The second guide bearing has a third bearing member that presses the second side surface of the first journal, and the third bearing member is attached to be movable in the axial direction. The movement of the third bearing member And a third pressurizing chamber whose internal volume increases or decreases with
The sixth guide bearing includes a fourth bearing member that presses the fourth side surface of the second journal, and the fourth bearing member is attached to be movable in the axial direction. And a fourth pressurizing chamber whose internal volume increases or decreases with
The third pressurizing chamber and the fourth pressurizing chamber communicate with each other through the second connecting pipe, and fluid is passed through the third pressurizing chamber, the fourth pressurizing chamber, and the second connecting pipe. Enclosed,
When the first journal or the second journal moves from a predetermined position, the second support position adjusting mechanism changes the internal volume of the third pressurizing chamber or the fourth pressurizing chamber. Based on the change in the internal volume, the fourth bearing member or the third bearing member moves to displace the third bearing member of the second guide bearing and the sixth guide bearing . Adjusting the displacement amount of the third bearing member of the second guide bearing and the fourth bearing member of the sixth guide bearing so that the sum of the displacement amount of the fourth bearing member becomes zero;
The third guide bearing has a fifth bearing member that pushes the first side surface of the first journal, and the fifth bearing member is attached to be movable in the axial direction. And a fifth pressurizing chamber whose internal volume increases or decreases with
The seventh guide bearing has a sixth bearing member that pushes the third side surface of the second journal, and the sixth bearing member is attached to be movable in the axial direction. And a sixth pressurizing chamber whose internal volume increases or decreases with
The fifth pressurization chamber and the sixth pressurization chamber communicate with each other through the third connection pipe, and fluid flows through the fifth pressurization chamber, the sixth pressurization chamber, and the third connection pipe. Enclosed,
When the first journal or the second journal moves from a predetermined position, the third support position adjusting mechanism changes the internal volume of the fifth pressure chamber or the sixth pressure chamber. Based on the change in the internal volume, the sixth bearing member or the fifth bearing member moves to displace the fifth bearing member of the third guide bearing and the seventh guide bearing . Adjusting the displacement amount of the fifth bearing member of the third guide bearing and the sixth bearing member of the seventh guide bearing so that the sum with the displacement amount of the sixth bearing member becomes zero;
The fourth guide bearing has a seventh bearing member that presses the second side surface of the first journal, and the seventh bearing member is attached to be movable in the axial direction. The movement of the seventh bearing member And a seventh pressurizing chamber whose internal volume increases or decreases with
The eighth guide bearing has an eighth bearing member that pushes the fourth side surface of the second journal, and the eighth bearing member is attached to be movable in the axial direction. And an eighth pressurizing chamber whose internal volume increases or decreases with
The seventh pressurizing chamber and the eighth pressurizing chamber communicate with each other through the fourth connecting pipe, and fluid is passed through the seventh pressurizing chamber, the eighth pressurizing chamber, and the fourth connecting pipe. Enclosed,
In the fourth support position adjusting mechanism, when the first journal or the second journal moves from a predetermined position, the internal volume of the seventh pressure chamber or the eighth pressure chamber changes. , based on the change in the internal volume, the eighth to move the bearing member or the seventh bearing member, the said fourth displacement of the seventh bearing member guide bearing and the eighth guide bearing The displacement amount of the seventh bearing member of the fourth guide bearing and the eighth bearing member of the eighth guide bearing is adjusted so that the sum of the displacement amount of the eighth bearing member becomes zero. Preload guide system as described in.   The first support position adjustment mechanism and the third support position adjustment mechanism each include a preload mechanism that defines a preload for restraining the first journal and the second journal. Item 3. The preload guide system according to Item 1 or 2.   The said 2nd support position adjustment mechanism and the said 4th support position adjustment mechanism are comprised including the positioning mechanism which determines the position of the said 1st journal and the said 2nd journal. The preload guide system according to any one of the above. The positioning mechanism is
A positioning mechanism body formed with a cavity filled with fluid;
A jack mechanism for increasing or decreasing the internal volume of the cavity;
The preload guide system according to claim 4. The positioning mechanism is
A positioning mechanism body formed with a cavity filled with fluid;
Temperature detecting means for detecting the temperature of the fluid;
A jack mechanism for increasing or decreasing the internal volume of the cavity;
An actuator for moving the jack mechanism;
A control unit for controlling the actuator based on a detection result of the temperature detection means;
The preload guide system according to claim 4.   A rotary structure comprising the preload guide system according to any one of claims 1 to 6.