JP2003239885A - Temperature regulating device for rotary body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for regulating temperature of a rotary body wherein temperature of the rotary body is easily regulated during rotation condition. <P>SOLUTION: Fluid passage spaces 74, 76 rotating together with the rotary 10 is provided in an outer side of the rotary body 10. Rotating shafts 30a, 30b are fixed on both end of the rotary body 10, and inner passages 66a, 68a for introduction and inner passages 66b, 68b for discharge communicating with the fluid passage spaces 74, 76 are formed inside of the rotating shaft 30a, 30b. The rotating shafts 30a, 30b is rotatably retained by retaining members 34a, 34b via bearings 32a, 32b. Fluid for temperature regulation is introduced into the fluid passage spaces 74, 76 from a position of the retaining member 34a via the inner passages 66a, 68a for introduction of the rotating shaft 30a and is discharged from the fluid passage spaces 74, 76 via the inner passages 66b, 68b for discharge of the rotating shaft 30b. Consequently, temperature regulation of the rotary body 10 is done. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating body temperature adjusting device capable of adjusting the temperature of a rotating rotating body by a cooling fluid or a heating fluid.

[0002]

2. Description of the Related Art Conventionally, for example, in a rotating body heated while maintaining a rotating state, a device for cooling the rotating body may be provided in order to prevent distortion due to thermal expansion due to high temperature. In this cooling device, a method is generally used in which a metal pipe for introducing cooling water or the like is passed from a central space portion of a bearing that rotatably holds the rotating body, and the rotating body is cooled by cooling water or the like that passes through the metal pipe. Known to be. As another method for cooling the rotating body that is rotating and being heated, a method of cooling the rotating body by spraying cooling water from the outside of the rotating body onto the rotating body is also used.

[0003]

In the conventional cooling device,
When the rotating body is cooled when it is at a high temperature, the device itself becomes large in size, the handling is complicated, and the running cost of the device becomes high. Further, in the conventional cooling device, since cooling water or the like is introduced from the central space portion of the bearing that rotatably holds the rotating body, only the internal pressure of the rotating body can be cooled,
It has not been generally applicable to a rotary body having a vacuum internal pressure. Although it is possible to make a device that cools a rotating body whose internal pressure is vacuum, the structure is complicated and the cost of the device is high, and moreover, maintenance is troublesome and running cost is high. However, there is also a drawback that trouble is likely to occur.

SUMMARY OF THE INVENTION The present invention solves the problems of the conventional device, and an object of the present invention is to provide a temperature adjusting device for a rotating body which can easily adjust the temperature of the rotating body in a rotating state. is there.

[0005]

In order to achieve such an object, the temperature control device for a rotating body according to the present invention comprises a fluid passage space outside a rotatable rotating body and is formed integrally with the rotating body. Or a rotary shaft fixed to the rotary body, and an internal passage for introduction and discharge is formed inside the rotary shaft for communicating one end with the outside and the other end with the fluid passage space for temperature control. A fluid is introduced into the fluid passage space from the introduction internal passage of the rotary shaft, and the temperature adjusting fluid is discharged from the fluid passage space to the outside through the discharge internal passage of the rotation shaft. .

Further, the present invention further comprises: the rotary body having an internal space, the rotary shaft having a space communicating with the internal space of the rotary body, the internal space, the internal passage, and the fluid passage. Avoid contacting each other with the space. Furthermore, the internal space of the rotary body and the space of the rotary shaft are decompressed or evacuated. Further, an annular groove communicating with one end of the internal passage is provided on the outer wall of the rotating shaft, and the rotating shaft is rotatably held by a holding member via a bearing,
The holding member is provided with introduction and discharge communication passages, one of which communicates with the annular groove and the other of which communicates with the outside. Forming a plurality of layers of the fluid passage space in the diametrical direction of the rotating body, introducing a different fluid for each fluid passage space,
An internal passage for introducing and discharging the rotating shaft and a communication passage for introducing and discharging the holding member are formed for each fluid. Two rotary shafts are provided, one of the rotary shafts is formed with an internal passage for introduction that communicates with the fluid passage space, and the other rotary shaft is formed with an internal passage of discharge that communicates with the fluid passage space. A circulation passage is connected between the introduction communication passage and the discharge communication passage, and a heat exchange device is provided in the circulation passage, and the temperature of the fluid is adjusted by the heat exchange device.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. 1 is a cross-sectional view showing the right side of a temperature control device for a rotating body according to the present invention, FIG. 2 is a cross-sectional view showing the left side of a temperature control device for a rotating body according to the present invention, and FIG. It is a figure. In this embodiment, a case where the rotating body functions as a crucible will be described. The rotating body 10, which is the main constituent member of the rotating body, has a tubular shape having an internal space 12 for heating an object to be heated. The cylindrical inner wall is formed with a spiral groove 14 for moving an object to be heated, which is put into the internal space 12, as the rotary body 10 rotates. A heating means 16 such as a tubular heater is provided outside the rotary body 10, and a tubular cover 18 for hermetically blocking the heating means 16 from the outside is provided outside the heating means 16. The left side of the rotary body 10 shown in FIG. 1 and the right side of the rotary body 10 shown in FIG. 2 are connected to each other. Rotating body 1
A plate-shaped right end face member 22 (FIG. 1) having a hole 20 formed in the center is fixed to the right side of 0, and a plate-like left end face member 26 having a hole 24 formed in the center is provided on the left side of the rotary body 10.
(Fig. 2) is fixed. The rotary body 10 is rotated together with the right end face member 22 and the left end face member 26 at that position by a motor (not shown). When the rotary body 10 and the right end surface member 22 are fixed, the internal space 12 and the hole 20 are set to communicate with each other, and when the rotary body 10 and the left end surface member 26 are fixed, The hole 24 is set to communicate with the hole 24.

As shown in FIG. 1, a cylindrical rotary shaft 30a having a space 28 inside is fixed to the right end face member 22 at a position opposite to the rotary body 10. When the right end face member 22 and the rotary shaft 30a are fixed, the hole 20 of the right end face member 22 and the space 28 of the rotary shaft 30a are set to communicate with each other. The rotary shaft 30a may be integrally formed with the rotary body 10 or the right end surface member 22. A tubular holding member 34a is provided on the outer side of the rotary shaft 30a in the axial direction via two bearings 32a and 32b. The outside of the cylindrical holding member 34a is fixed to a base 36 that is in a fixed state with the ground. That is, the rotary shaft 30a has two bearings 32
It is rotatably held by a holding member 34a via a and 32b.

A tubular connecting member 40 having a space 38 formed therein is fixed to the base 36, a bearing 42 is fixed to the connecting member 40, and the tip of the rotary shaft 30a is rotatably attached to the bearing 42. Retained. Contact member 40
The space 38 of is connected to the space 28 of the rotating shaft 30a. The base 36 further has a motor 44 capable of reversible rotation.
Is fixed. The motor 44 is an extrusion screw 46
The extrusion screw 46 has a space 38 for the connecting member 40, a space 28 for the rotary shaft 30a, and the first end surface member 22.
Through the hole 20 in the inside of the inner space 12 of the rotary body 10. The connecting member 40 is formed with a charging port 48 communicating with the space 38, and a charging pipe 50 for charging an object to be heated is connected to the charging port 48. When the object to be heated is introduced into the charging pipe 50, the object to be heated falls onto the extrusion screw 46 in the space 38 of the connecting member 40. Here, when the motor 44 is operated, the object to be heated is carried to the internal space 12 of the rotary body 10 by the extrusion screw 46, and heated in the internal space 12 by the heating means 16.

The holding member 34a is formed with a first communication passage 52a for introduction and a second communication passage 54a for introduction extending from the outer side to the inner side of the cylindrical shape. The rotating shaft 30
The outer surface of a is formed with an annular first annular groove 56 for always communicating with the first communication passage 52a, and an annular second annular groove 58 for always communicating with the second communication passage 54a.
Is formed. At the joining surface between the inner wall of the tubular holding member 34a and the outer wall of the tubular rotating shaft 30a, the holding member 34a is formed.
First communication passage 52a and the first annular groove 56 of the rotating shaft 30a.
And a second communication passage 54a of the holding member 34a.
A seal member 60 is provided in order to prevent the fluid from leaking from the connection point between the rotary shaft 30a and the second annular groove 58. The first fluid for moving toward the first annular groove 56 is supplied to the first communication passage 52a of the holding member 34a from the first introduction passage 62 which is a circulation passage. The second fluid for going to the second annular groove 58 is supplied to the second communication passage 54a from the second introduction passage 64 which is a circulation passage. Inside the thick portion of the rotary shaft 30a, a first internal passage 66a for communication that communicates with the first annular groove 56 and extends axially toward the rotary body 10 side, and communicates with the second annular groove 58. And a second internal passage 68a for introduction which extends axially toward the rotary body 10 is formed.

Rotating body 10 (cover 1 of heating means 16
A tubular first partition outer wall 70 is fixed between the right side end surface member 22 and the left side end surface member 26 outside 8). The second partition outer wall 72 is fixed outside the first partition outer wall 70 and between the right end face member 22 and the left end face member 26. A first fluid passage space 74 is formed by the outer side of the cover 18, the inner side of the cylindrical first partition outer wall 70, the right end face member 22 and the left end face member 26. A second fluid passage space 76 is formed by the outer side of the tubular first partition outer wall 70, the inner side of the tubular second partition outer wall 72, the right end face member 22, and the left end face member 26. The first fluid passage space 74 and the second fluid passage space 76 are set to maintain airtightness with the outside.

The right end member 22 has a first communication hole 78 communicating with the first fluid passage space 74 and a second communication hole 80 communicating with the second fluid passage space 76. The other of the first communication holes 78 communicates with the first internal passage 66a formed in the rotating shaft 30a via the first communication pipe 82. The other of the second communication holes 80 communicates with the second internal passage 68a formed in the rotating shaft 30a via the second communication pipe 84. The first communication hole 78 of the right end face member 22 and the first internal passage 66a of the rotary shaft 30a are
They may be directly connected to each other without the first communication pipe 82, and the second communication hole 80 of the right end face member 22 and the second internal passage 68a of the rotary shaft 30a may be connected to each other via the second communication pipe 84. You may make it contact them directly without going through.

As shown in FIG. 2, a rotary shaft 30b is also fixed to the left end face member 26 at a position opposite to the rotary body 10. Rotating shaft 30b fixed to the left end face member 26
Has the same structure as the rotary shaft 30a fixed to the right end face member 22, and is arranged at a symmetrical position. That is, an annular first annular groove 56 and an annular second annular groove 58 are formed on the outer surface of the rotating shaft 30b, and the first inner portion for discharge extending in the axial direction is formed inside the thick portion of the rotating shaft 30b. A passage 66b and a second internal passage 68b for discharge are formed. The rotary shaft 30b may be integrally formed with the rotary body 10 or the left end surface member 26. Two bearings 3 are provided on the outer side of the rotary shaft 30b fixed to the left end face member 26.
A cylindrical holding member 34b is provided via 2a and 32b. The holding member 34b is the same as the holding member 34a fixed to the right end surface member 22 and is arranged at a symmetrical position. That is, the holding member 34b is formed with the first discharging communication passage 52b and the second discharging communication passage 54b. The holding member 34b is fixed to a base 36 that is fixed to the ground. As a result, the rotary shaft 30b fixed to the left end face member 26 is rotatably held by the holding member 34b fixed to the ground via the two bearings 32a and 32b.

The left end face member 26 has a first communication hole 86 communicating with the first fluid passage space 74 and a second communication hole 88 communicating with the second fluid passage space 76. The other of the first communication holes 86 communicates with the first internal passage 66b formed in the rotating shaft 30b via the first communication pipe 90. The other of the second communication holes 88 communicates with the second internal passage 68b formed in the rotating shaft 30b via the second communication pipe 92. The first communication hole 86 of the left end face member 26 and the first internal passage 66b of the rotating shaft 30b are
The second communication hole 88 of the right end face member 22 and the second internal passage 68b of the rotary shaft 30b may not be directly connected to each other without the first communication pipe 90. You may contact us directly at.

As shown in FIG. 2, a cylindrical connecting member 40 having a space 38 formed therein is fixed to the base 36, and a bearing 42 fixed to the connecting member 40 has a tip end of the rotary shaft 30b. It is rotatably held. Further, a motor 44 capable of reversible rotation is fixed to the base 36. The motor 44 has a take-out screw 94, and the take-out screw 94 passes through the space 38 of the connecting member 40, the space 28 of the rotary shaft 30b, the hole 24 of the left end face member 26, and the inside of the internal space 12 of the rotary body 10. Has been extended to. The connecting member 40 is formed with a discharge port 96 that communicates with the space 38 and opens downward, and a discharge pipe 98 for discharging the object to be heated to the discharge port 96.
Are connected. The object to be processed which has been subjected to the heat treatment in the internal space 12 of the rotary body 10 is placed on the take-out screw 94 and moves to the space 38 of the connecting member 40, and the discharge port 88
Through the discharge pipe 98 to the outside. Since the structure for placing the object to be processed on the take-out screw 94 is known, its description is omitted here.

A first discharge passage 100, which is a circulation passage, is connected to the first communication passage 52b of the holding member 34b, and the first discharge passage 100 is connected to the heat exchange device 102. The heat exchange device 102 is connected to the first introduction passage 62, and the heat exchange device 102 is connected to the first introduction passage 62.
Is supplied with a first fluid. The second discharge passage 104, which is a circulation passage, is connected to the second communication passage 54b of the holding member 34b, and the second discharge passage 104 is connected to the heat exchange device 106. The heat exchange device 106 is connected to the second introduction passage 64, and the second fluid is supplied from the heat exchange device 106 to the second introduction passage 64.

According to the present invention constructed as described above, the rotary body 10, the right end face member 22, and the left end face member 26.
A first partition outer wall 70 (and a first fluid passage space 74), a second partition outer wall 72 (and a first fluid passage space 74), and a rotary shaft 30 a fixed to the right end face member 22. , The rotary shaft 3 fixed to the left end face member 26
0b rotates with respect to the base 36 and the holding member 34b in the fixed position via the bearings 32a and 32b.
The object to be heated charged from the charging pipe 50 is passed through the space 28 of the rotary shaft 30 a and the hole 20 of the right end member 22 by the extrusion screw 46 and the internal space 12 of the rotary body 10.
And is heated by the heating means 16 in the internal space 12 of the rotary body 10. After the heating is completed, the object to be heated is taken out from the internal space 12 of the rotating body 10 by the screw 9
4 is carried to the position of the discharge port 88, and the discharge pipe 9
8 is discharged to the outside.

Next, cooling of the object to be heated will be described.
As shown in FIG. 1, the first fluid supplied from the heat exchange device 102 to the first introduction passage 62 via the circulation device 104 passes from the first communication passage 52a of the holding member 34a to the rotary shaft 30a.
Is introduced into the first fluid passage space 74 via the first annular groove 56 and the first internal passage 66a, the first communication pipe 82, and the first communication hole 78 of the right end surface member 22. When the rotary body 10 is a crucible, the first fluid introduced into the first fluid passage space 74 is a cooling liquid such as cooling water. The first fluid introduced into the first fluid passage space 74 is
After cooling the rotating body 10, as shown in FIG. 2, from the first fluid passage space 74, the first communication hole 8 of the left end face member 26 is formed.
6, the first communication pipe 90, the first internal passage 66b of the rotary shaft 30b and the first annular groove 56, the first communication passage 52b of the holding member 34b, and the first discharge passage 100, and then the heat exchange device 102. Leading to. In the heat exchange device 102, the high temperature first fluid is cooled again. The first fluid cooled by the heat exchange device 102 is supplied to the first introduction passage 62 again by the circulation device 104. This first fluid is set so as to circulate while being blocked from the outside.

The first fluid for cooling the rotating body 10 in the present invention is a transfer path for the member to be heated (rotating shafts 30a, 30).
The space 28b and the internal space 12) of the rotary body 10 are allowed to pass through different paths. That is, the first fluid is formed outside the rotary body 10 through the first annular groove 56 formed in the outer wall of the cylindrical rotary shaft 30a, the first internal passage 66a formed in the thick portion of the rotary shaft 30a. First fluid passage space 74, and then the first fluid passage space 7
4 through the first internal passage 66b formed in the thick portion of the tubular rotary shaft 30b and the first annular groove 56 formed in the outer wall of the tubular rotary shaft 30b. In this way, the first fluid for cooling the rotating body 10 is made to pass through a path different from the transfer path for the heated member, so that the transfer path for the heated member is in a vacuum (oxygen-free) or depressurized state. Can be applied in case. That is, in the conventional case, the transfer path of the heated member (the rotating shafts 30a, 30b)
When the passage of the first fluid is passed through the space 28 and the internal space 12) of the rotating body 10 and the transfer passage of the heated member is made into a special state such as vacuum, the apparatus becomes large-scale and the cost is increased. Get higher On the other hand, in the present invention, the first fluid is passed through a path different from the transfer path of the heated member, so that the transfer path of the heated member is kept in a special state such as a vacuum anoxic state and has a simple structure. With rotating body 10
Can be cooled.

The second fluid supplied from the heat exchange device 106 to the second introduction passage 64 is, as shown in FIG.
From the second communication passage 54a of 4a, through the second annular groove 58 of the rotary shaft 30a and the second internal passage 68a, the second communication pipe 84, and the second communication hole 80 of the right end surface member 22,
It is introduced into the second fluid passage space 76. The second fluid introduced into the second fluid passage space 76 is a gas such as nitrogen. The first fluid passage space 74 and the second fluid passage space 7
The fluid flowing into 6 is not limited to the above.
The second fluid introduced into the second fluid passage space 76 cools the rotating body 10 and then, from the second fluid passage space 76, to the second communication hole 88 of the left end face member 26, as shown in FIG. The second connecting pipe 92 and the second internal passage 68 of the rotating shaft 30b.
b and the second annular groove 58, the second communication passage 54b of the holding member 34b, and the second discharge passage 106 to reach the heat exchange device 108. In the heat exchange device 108, the high temperature second fluid is cooled again to be used as a cooling fluid. The second fluid cooled by the heat exchange device 108 is supplied again to the second introduction passage 64 by the circulation device 110. This second fluid is set so as to circulate while being blocked from the outside. As described above, in the present invention, not only the first fluid passes through the first fluid passage space 74 outside the rotary body 10, but also the second fluid passage space 7 outside the first fluid passage space 74.
The second fluid can also be independently passed through 6. That is, cooling can be performed in a plurality of layers, heat can be prevented from propagating to the outside, and distortion and stress due to thermal expansion of the rotating body 10 and the cover 18 can be suppressed as much as possible.

In the above-described embodiment, the double cooling space of the first fluid passage space 74 and the second fluid passage space 76 outside thereof is provided outside the rotary body 10. However, a triple or more space is provided. It may be provided. Further, a plurality of cooling spaces may be provided in the axial direction of the rotating body 10. Further, although the first fluid and the second fluid are introduced from one side of the rotary body 10 and discharged to the other side, they are introduced from one side and are discharged from the same side (one rotary shaft 30b).
The same fluid inflow passage and discharge passage may be provided). In addition, in the above-described embodiment, the rotating body 10
Although the heating means is used for heating, the rotating body 10 may be cooled by the cooling means, and the first fluid or the second fluid may be used as the heating fluid.

[0022]

As described above, according to the present invention, a fluid passage space that rotates together with the rotating body is provided outside the rotating body, and the fluid introduced into the fluid passing space is processed in the inner space of the rotating body. Try to pass through a route different from the substance. Thereby, the rotating body can be cooled (heated) while heating (cooling) the internal space of the rotating body under a special condition such as vacuum (or reduced pressure) anoxic state. In addition, by increasing the number of annular grooves and the number of internal passages on the rotating shaft, the number of fluid passage spaces can be increased in the axial direction and radial direction of the rotating body. Can be done. Moreover, by circulating the fluid passing through the fluid passage space through the heat exchange device, it is possible to stably adjust the temperature of the rotating body. Since the fluid is moved using the thick portion of the hollow rotary shaft that is in a fixed relationship with the rotary body, the structure is simple and inexpensive.

[Brief description of drawings]

FIG. 1 is a partial sectional view of the right side of a temperature adjusting device for a rotating body according to the present invention.

FIG. 2 is a partial configuration cross-sectional view on the left side of the temperature adjusting device for a rotating body according to the present invention.

FIG. 3 is a sectional view taken along line B of FIG.

[Explanation of symbols]

10 rotating body 12 Internal space 28 space 30a rotating shaft 30b rotating shaft 32a bearing 32b bearing 34a holding member 34b holding member 52a First communication passage 52b First communication passage 54a Second communication passage 54b Second communication passage 56 First annular groove 58 Second annular groove 62 First introduction passage 64 Second introduction passage 66a First internal passage 66b First internal passage 68a Second internal passage 68b Second internal passage 74 First fluid passage space 76 Second fluid passage space 100 First discharge passage 102 heat exchanger 106 First discharge passage 108 heat exchange device

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3H034 AA01 AA11 BB01 BB08 BB11                       CC03 CC07 DD01 DD26 DD28                       DD30 EE02                 3L103 AA02 AA05 AA08 CC02 CC21                       CC35 DD08 DD09 DD26 DD38

Claims (7)

[Claims] 1. A rotatable body having a fluid passage space outside the rotatable body, a rotary shaft formed integrally with the rotary body or fixed to the rotary body, and one end of which is external to the inside of the rotary shaft. An internal passage for introduction and discharge that communicates the other end with the fluid passage space, and introduces a fluid for temperature control into the fluid passage space from the internal passage for introduction of the rotating shaft, and the fluid passage space A temperature adjusting device for a rotating body, wherein the temperature adjusting fluid is discharged to the outside through the discharging internal passage of the rotary shaft. 2. The rotating body has an internal space, and the rotating shaft has therein a space communicating with the internal space of the rotating body. The internal space, the internal passage, and the fluid passage space are defined as follows. The temperature adjusting device for a rotating body according to claim 1, wherein the temperature adjusting devices are not connected to each other. 3. The temperature adjusting device for a rotating body according to claim 2, wherein the internal space of the rotary body and the space of the rotary shaft are decompressed or vacuumed. 4. An annular groove communicating with one end of the internal passage is provided on an outer wall of the rotating shaft, the rotating shaft is rotatably held by a holding member via a bearing, and one of the holding member is the annular groove. 2. A communication passage for introduction and discharge for communicating with the other and communicating the other with the outside is provided.
The temperature control device for the rotating body described. 5. An internal passage for introducing and discharging a rotating shaft for each fluid, wherein a plurality of layers are formed in the fluid passage space in a diametrical direction of the rotary body, and different fluids are introduced into each fluid passage space. The temperature adjusting device for a rotating body according to claim 1, wherein a communication passage for introducing and discharging the holding member is formed. 6. An internal exhaust passage communicating with the fluid passage space is formed on one of the rotation shafts, and is provided inside the discharge passage communicated with the fluid passage space on the other rotation shaft. The temperature adjusting device for a rotating body according to claim 5, wherein a passage is formed. 7. A circulation passage is provided between the introduction communication passage and the discharge communication passage, a heat exchange device is provided in the circulation passage, and the temperature of the fluid is adjusted by the heat exchange device. The temperature adjusting device for a rotating body according to claim 1.