JP3841700B2 - Stirring heat transfer device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
According to the present invention, a plurality of hollow shafts are spaced in parallel and rotatably in a casing, and a plurality of hollow stirrer plates are inclined on each hollow shaft, and a speed reduction mechanism body is provided at one end of the hollow shaft. And a stirring heat transfer device that performs heat exchange processing and smooth discharge while stirring the object to be processed supplied into the casing.
[0002]
[Prior art]
Conventionally, as this type of stirring heat transfer device, for example, a plurality of rotating shafts spaced in parallel in a substantially horizontal casing having a jacket structure on the outer periphery, and stirring stirred on these rotating shafts The rotating shaft and the stirring plate are hollow, and the granular material and sludge with high adhesiveness that are supplied into the stirring heat transfer device through the heat exchange medium through the inside and the jacket are provided. An apparatus for heating or cooling an object to be processed while stirring is known. And in the said stirring heat-transfer apparatus, in order to enlarge the heat-transfer area per unit capacity | capacitance and to improve a stirring effect, each said stirring plate on one axis | shaft is made into the said rotating shaft 2 axis | shafts or multiple axes | shafts Has already been adopted in such a way as to be partially inserted between adjacent stirring plates on the other shaft.
[0003]
By the way, as disclosed in the prior art, the stirring plate is inclined with respect to a plane perpendicular to the longitudinal direction of the rotating shaft, and is arranged in a line from the front end to the rear end of the rotating shaft, According to the configuration, the object to be treated supplied from the supply port of the stirring heat transfer device is heated or cooled while stirring effectively.
And the said rotating shaft which has arrange | positioned the said stirring board requires the deceleration mechanism etc. for providing the moderate rotational force and rotational speed in order to stir the processed material in the said casing in general and to stir smoothly and appropriately. there were.
However, in the conventional agitating heat transfer device, there is no speed reduction mechanism directly connected to the hollow shaft or motor, or there is a speed reduction mechanism, but it is composed of a combination of multiple gears and is large. In some cases or when installed in a factory, the overall height of the speed reduction mechanism device including the motor is increased.
[0004]
[Problems to be solved by the invention]
Since the stirring heat transfer device in the prior art has the above-described configuration, the following problems exist.
(1) According to the prior art, the product supplied from the supply port of the stirring heat transfer device is transferred through the device while being heated or cooled while being effectively stirred, and processed from the discharge port. If the device is not equipped with a speed reduction mechanism, the rotational speed of the rotary shaft on which the stirring plate is arranged by a motor becomes extremely high, and the object to be processed in the casing rotates at a high speed. However, it is difficult to properly and smoothly agitate and transfer heat, so it is possible to reduce the speed of the rotating shaft and provide a large motor with a large rotational force. There were problems such as being impossible to achieve.
[0005]
(2) Further, in the conventional technique, if a configuration is provided in which one of the hollow shafts provided with the stirring plates of the stirring heat transfer device is provided with a speed reduction mechanism for each of the hollow shafts, the speed reduction mechanism is attached. The number of motors is not only increased accordingly, but also a large speed reduction mechanism consisting of a combination of many gears, the number of installations increases, the stirring heat transfer device itself becomes larger and installed. In addition to the increase in man-hours and other installation costs, the factory installation space has also been expanded, which has been a big problem in utilizing the effective area in the factory.
[0006]
[Means for Solving the Problems]
The present invention has been made under the above-mentioned background. As a first object, the present invention is provided with a small-scale reduction mechanism that is small without using a large motor or the like and has a small number of gear combinations. Thus, it is to efficiently and smoothly stir, heat transfer or transfer the object to be treated such as the granular material and sludge in the casing supplied from the supply port.
As a second object of the present invention, the first case and the second case for accommodating the speed reduction mechanism mounted on the stirring heat transfer device have a unique structure, for example, the mutually adjacent surfaces of the case are configured in steps. Thus, the reduction mechanism is reduced in size and weight, and the installation space of the facility of the present apparatus is reduced.
[0007]
In order to achieve such an object, the present invention employs the following configurations and means.
According to the first aspect of the present invention, a substantially horizontal casing having a supply port and a discharge port, a plurality of hollow shafts spaced in parallel in the longitudinal direction of the casing, and on the hollow shaft A plurality of hollow stirring plates that are inclined and spaced apart from each other on one and the other hollow shaft, and a device that allows a heat exchange medium to pass through the hollow shaft and the hollow stirring plate A heat transfer device, comprising: a first case and a second case that house a single reduction mechanism shared by a plurality of hollow shafts at one end of the hollow shaft via a connecting portion; The stirring heat transfer device is characterized in that the mutually adjacent surfaces of the two cases are formed in steps.
Therefore, in the stirring heat transfer device configured as described above, a plurality of or a plurality of speed reduction mechanism bodies that are directly connected to one end of the hollow shaft on which the stirring plate is disposed via the connecting portion are provided. Since the single speed reduction mechanism shared by the first case and the second case is accommodated and the adjacent surfaces of the cases are formed in a stepped shape, the speed reduction mechanism itself and the motor and other accessories are small. In addition to realizing reduction in weight and weight, the width of the speed reduction mechanism body can be set short, and there is an effect that it is possible to reduce the number of factory facilities, reduce costs, or effectively use the space in the factory.
[0008]
According to the second aspect of the present invention, the substantially horizontal casing having the supply port and the discharge port, the four hollow shafts spaced in parallel in the longitudinal direction of the casing, and the four hollow shafts Stirring heat transfer comprising a plurality of hollow stir plates spaced apart from each other on one and the other hollow shafts, and a device for passing a heat exchange medium through the four hollow shafts A pair of two hollow shafts having rotational directions opposite to each other among the four hollow shafts, and each of the pair of hollow shafts is connected to a single end via a connecting portion. A stirring heat transfer device comprising a first case and a second case that house a speed reduction mechanism, wherein the adjacent surfaces of the first case and the second case are formed in steps.
In the stirring heat transfer device configured as described above, a pair of two hollow shafts of the hollow shafts having rotational directions opposite to each other in the four hollow shafts in which the speed reduction mechanism body is provided with the stirring plate is formed. Since each of the hollow shafts accommodates a single speed reduction mechanism body in the first case and the second case via a connecting portion at one end, and the adjacent surfaces of the cases are formed in a stepped shape, each of the four hollows Compared to the conventional speed reduction mechanism for each shaft, the size, weight, and quantity of the speed reduction mechanism itself and motors and other attached equipment can be halved, and the width of the speed reduction mechanism can be set shorter. There is an effect of saving space for installation and promoting practical use.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Embodiments of a stirring heat transfer device according to the present invention will be described in detail with reference to the accompanying drawings.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1
1 to 7 show a first embodiment of a stirring heat transfer device according to the present invention, which will be described.
[0010]
In the first embodiment, A is an agitating heat transfer device, and includes an upper cover 1c and a casing 1, and a plurality of jackets 2 such as dimple plate jackets are provided in the longitudinal direction on the outer periphery of the casing 1. I have. The outer periphery of the jacket 2 constitutes a case body 3, and the case body 3 is provided with a heat exchange medium inlet 4a for introducing the heat exchange medium P into the side surface of the jacket. The heat exchange medium P shown in FIGS. It is possible. Moreover, the heat exchange medium exit 4b which discharges | emits a heat exchange medium from the jacket bottom face is provided. As shown in FIG. 3, the bottom side portions of the casing 1, the jacket 2, and the case body 3 are formed in a wave shape so as to surround four stirring plates 13 described later. The casing 1 has a substantially rectangular parallelepiped box shape, and is arranged in a substantially horizontal direction such that the one end (front end) side in the longitudinal direction is inclined slightly higher than the other end (rear end) side. Yes.
In addition, it has the function which interposes a heat insulating material etc. between the jacket 2 and the case body 3, and minimizes the heat radiation of the said stirring heat-transfer apparatus.
[0011]
As shown in FIG. 1, a supply port 5 capable of continuously supplying an object to be processed such as a granular material or a sludge substance is provided at one upper portion of the casing 1. One or a plurality of discharge ports 7 are provided at the other lower and side portions of the casing 1 through which a workpiece can be discharged continuously via a dam plate, a stand damper (not shown), and the like. .
When the one end (front end) side of the casing 1 is inclined so as to be slightly higher than the other end (rear end) side, the supply port 5 is located at the upper center of one end (front end) side of the casing 1 or The discharge port 7 is preferably disposed at the lower part of the other end (rear end) side of the casing 1 or in the vicinity of the side part in order to stir, heat transfer and transfer the workpiece.
[0012]
The discharge port 7 is shown in FIGS. 1 to 4, and a weir 7a that is operated by an automatic lifting device 7b that can be remotely and automatically controlled is provided in the opening 6 to control the object or product to be processed. Adjust the discharge amount. Further, the weir 7a can be manually raised and lowered by rotating a handle 7c arranged in the lateral direction in FIG. 1 and in the upper surface direction in FIG. 3d shown in FIG. 3 is an openable / closable open / close door for taking out a workpiece or product to the outside.
[0013]
As shown in FIGS. 2 and 4, for example, four hollow shafts 8 a, 8 b, 8 c, 8 d having the same diameter and the same length are arranged in the casing 1 along the longitudinal direction of the casing 1. They are spaced apart in parallel so that they can rotate, that is, they are placed side by side in parallel in the horizontal direction. Both end portions of the hollow shafts 8a to 8d protrude in a sealed state from the one end surface 1a and the other end surface 1b of the casing 1, and are rotatably supported by the bearing portions 9a and 9b. As shown in FIG. 1, one end (front end) of each of the hollow shafts 8a to 8d has two reduction mechanism bodies 10 and 10 configured by a combination of gear mechanisms that mesh with each other, and a motor 11 attached to the upper part thereof. The speed reduction mechanism bodies 10 and 10 and the motor 11 constitute a rotational drive means 12 for the hollow shafts 8a to 8d.
The hollow shafts 8a to 8d are rotated at the same number of rotations by the rotation driving means 12, and as shown in FIG. 3, the adjacent hollow shafts 8a and 8b are in mutually opposite rotational directions T1 and T2, respectively. The adjacent hollow shafts 8c and 8d rotate in opposite rotation directions T3 and T4, respectively.
[0014]
On the outer periphery of the hollow shafts 8a to 8d, a series of hollow stirring plates 13 having a substantially disk shape as shown in FIGS. 2 and 3 are provided. As shown in FIG. 2, the hollow stirring plates 13 are spaced apart from each other and are adjacent to each other in the longitudinal axis direction of one hollow shaft 8a between the hollow shafts 8a and 8b. The hollow stirring plates 13 and 13 are alternately arranged in the longitudinal axis direction so that the hollow stirring plate 13 of the other hollow shaft 8b is positioned at the center of the hollow stirring plates 13 and 13. Further, the hollow stirring plate 13 is formed in a rectangular shape as shown in the cross-sectional shape, and the thickness gradually decreases toward the outer peripheral side, such as a triangular shape or a mountain shape, such as a wedge shape, a diamond shape, Various shapes such as an inverted triangle may be used.
Moreover, the inside of the stirring plate 13 is hollow, and the heat exchange medium P supplied from the hollow portion 8e of the hollow shafts 8a to 8d is spread over the hollow stirring plate 13.
Further, as shown in FIG. 3, each of the stirring plates 13 and 13 has a pair of notches 13A and 13B opened in the circumferential direction at an angle of 30 °, for example, symmetrically in opposite directions with respect to the longitudinal axis. Further, the stirring plates 13 and 13 adjacent to each other in the longitudinal direction of the hollow shafts 8a to 8d are formed so that the phases thereof are shifted by 90 °, and the outer periphery of the end face of the notch 13A facing the rotation direction T1 to T4 The part is provided with small blades 13C.
[0015]
Both ends of the stirring heat transfer device A according to the present invention have the structure shown in FIGS. 1, 2 and 4, and FIG. 2 shows the internal structure of the casing 1, and the arrangement of the hollow shafts 8a to 8d. It is the top view which showed the state. FIG. 4 is a plan view showing the speed reduction mechanisms 10 and 10 and the motors 11 and 11 arranged on one end (front end) side of the hollow shafts 8a to 8d. The other ends (rear ends) of the hollow shafts 8a to 8d are connected to the heat exchange medium introduction pipe 14 and the heat exchange medium lead-out pipe 15 through bearing portions 9b, respectively. The stirring plate 13 is hollow, and as shown in FIG. 3, the lead-out pipes 16 and 17 having two nozzles are provided between one hollow stirring plate 13 and the hollow shafts 8a to 8d. Thus, the heat exchange medium P is connected so as to flow through.
Thus, the heat exchange medium P such as steam, hot water, cold water or the like introduced from the heat exchange medium introduction pipe 14 into the hollow shafts 8a to 8d is introduced into the hollow stirring plate 13, and further the introduction / extraction pipe In addition to being discharged to the hollow shafts 8 a to 8 d through 16, 17, it is discharged through the heat exchange medium outlet tube 15. By performing the heat exchange action in this way, the object to be processed supplied from the supply port 5 is stirred and subjected to heat transfer.
[0016]
In FIG. 4, 18 and 19 are gland boxes for sealing the inside of the casing 1, and 9a and 9b are the bearing portions described above. Reference numeral 20 denotes a rotary joint, which is introduced and led out without leaking the heat exchange medium P into the rotating hollow shafts 8a to 8d. Reference numeral 21a denotes a drive-side shaft, which is integrally formed with the hollow shafts 8a to 8d. The rotary drive unit 12 is connected to one end (front end) of the hollow shafts 8 a to 8 d and rotated by the operation of the rotary drive unit 12. Reference numeral 21b denotes a driven shaft, which is connected and integrally formed with the other ends (rear ends) of the hollow shafts 8a to 8d.
[0017]
Appropriate number of discharge ports 7 are provided in the vicinity of the lower portion, side portion, etc. of the casing 1, the jacket 2 or the case body 3 at the other ends (rear ends) of the hollow shafts 8a to 8d. As shown in FIG. 2, the hollow shafts 8a to 8d in the vicinity of the shaft 7 have a plurality of, that is, two to three hollow stir plates 13, 13, and 13 without being inclined to the longitudinal axis of the hollow shaft. In contrast, they are arranged in a substantially vertical direction. Moreover, the front and back surfaces of the stirring plates 13, 13, and 13 are formed in a flat shape.
[0018]
Based on FIG. 2, the suitable arrangement | positioning relationship of the said stirring board 13 and the said discharge port 7 is demonstrated.
The discharge port 7 of the stirring heat transfer device A shown in FIG. 2 is the left and right side portions of the other end (rear end) of the stirring heat transfer device A, and shows an example in which two are arranged on the case body 3 or the like. is there. The discharge port 7 is located adjacent to the hollow shafts 8a and 8d in terms of position, and will be substantially the same as the horizontal width length B corresponding to the width of the opening 6 of the discharge port 7 in the hollow shaft 8d portion. Three hollow stirring plates 13, 13, 13 in the axial length portion of the hollow shaft 8 d having an axial length C are arranged in a direction substantially perpendicular to the longitudinal axis, that is, the hollow shaft length. Further, in the present embodiment, an example in which the hollow stirrer plate 13 provided in the hollow shafts 8b and 8c is arranged substantially perpendicularly to the length of the hollow shaft as described above.
[0019]
Next, based on FIG.4 and FIG.7, the speed-reduction mechanism body which is the principal part of the stirring heat-transfer apparatus A based on this invention, the structure relevant to it, etc. are explained in full detail.
[0020]
As described above, the stirring heat transfer device A according to the first embodiment of the present invention includes the four hollow shafts 8a to 8d, and the speed reduction mechanisms 10 and 10 for rotating the shafts are illustrated in FIG. As shown in FIG. 5, it consists of two. Here, FIG. 4 is a plan view showing the speed reduction mechanism bodies 10 and 10 arranged on one end (front end) side of the hollow shafts 8a to 8d, and FIG. It is an expanded sectional view showing the structure, and shows gear mechanism 101 of one reduction mechanism body 10, and gear mechanism 102 of the other reduction mechanism body 10. FIG. 6 is a cross-sectional view as seen from the direction of the arrows EE in FIG. 5, and shows the first case 103 housing the gear mechanism 101 of the one speed reduction mechanism 10 and the gear mechanism 102 of the other speed reduction mechanism 10. The shape of the accommodated second case 104 is shown.
[0021]
The hollow shafts 8a and 8b are connected to one speed reduction mechanism body 10 through bearing portions 9a and 9a and gear couplings 8f and 8g, and the hollow shafts 8c and 8d are connected to the bearing portions 9a and 9a and gear couplings 8h and 8i. To the other speed reduction mechanism 10. The gear couplings 8f to 8i are first to fourth gear shafts 10a, 10b, 10c, and 10d that are pivotally attached to the first and second cases 103 and 104 from the one and other reduction mechanism bodies 10 and 10, respectively. From the hollow shafts 8a to 8d side, the shaft ends of the drive-side shafts 21a, 21a, 21a and 21a are connected, and the rotational force from the transferable drive means 12 is transmitted to the hollow shafts 8a to 8d. The object to be processed in the casing 1 is stirred by rotating the stirring plates 13, 13.
The gear couplings 8f to 8i are substantially cylindrical bodies, and are formed with locking portions at the front end and the rear end, respectively, and drive side shafts of the first to fourth gear shafts 10a to 10d and the hollow shafts 8a to 8d. While engaging and connecting to socket heads formed at the shaft ends of 21a, 21a, 21a and 21a, it is possible to adjust the connecting shafts of both by making it movable back and forth.
[0022]
Reference numerals 10e, 10f, and 10g denote first, second, and third pinions, which are rotatably attached to the first case 103, and have pinion teeth 10h, 10i, and 10j at the front end portion or the rear end portion, respectively. Forming. Further, the second pinion 10f is engaged with the pinion teeth 10h of the first pinion 10e at the rear end of the second pinion 10f, and the second pinion gear 10k having a longer diameter than the pinion teeth 10h is provided at the front end of the third pinion 10g. A third pinion gear 10l that meshes with the pinion teeth 10i of the second pinion 10f and has a longer diameter than the pinion teeth 10i is provided.
As shown in FIG. 6, the front end of the first pinion 10e is pivotally attached to a pinion shaft pulley 11d, and a rotary shaft (motor shaft) 11a of a motor 11 such as an AC motor via a V belt 106 encapsulated by a safety cover 11c. The rotational force of the motor 11 is transmitted to the first and second gear shafts 10a and 10b via the first to third pinions 10e to 10g. The first gear shaft 10a meshes with the pinion teeth 10j of the third pinion 10g, and the reduction gear 10m of the hollow shaft 8a having a longer diameter than the pinion teeth 10j, and the second gear shaft 10b is the reduction gear of the hollow shaft 8a. A reduction gear 10n of a hollow shaft 8b that meshes with the gear 10m is provided.
When the rotational directions of the hollow shaft 8a and the hollow shaft 8b are the same, the design can be easily changed by interposing another gear between the reduction gears 10m and 10n.
[0023]
Thus, the gear mechanism 101 of the one speed reduction mechanism body 10 is accommodated in the first case 103, and includes the first to third pinions 10e to 10g and the pinion teeth 10h and 10i formed thereon. 10j and the pinion gears 10k and 10l and the reduction gears 10m and 10n provided in the second and third pinions 10f and 10g. The motor 11 is, for example, a fully-closed outer door outdoor AC motor, and the rotational force of the rotary shaft 11a, which is a high-speed rotation of about 800 to 900 (rpm), is transmitted to the first pinion 10e, and the second pinion The first gear shaft of the hollow shaft 8a is decelerated by the second gear 10k, transmitted to the second pinion 10f, decelerated by the third pinion gear 101, and transmitted to the third pinion 10g. 10a becomes a low-speed rotation of 4-15 (rpm). The reduction gear 10n of the hollow shaft 8b also has the same diameter and length as the reduction gear 10m, and the second gear shaft 10b of the meshing hollow shaft 8b meshes with the reduction gear 10m and has the same reduced rotation, that is, low-speed rotation. That is, the rotational speed of the motor 11 is reduced to about 1/50 to 1/200, transmitted to the hollow shafts 8a and 8b, and rotated.
[0024]
Although the foregoing has described the configuration of the gear mechanism 101 of one reduction mechanism body 10 and the reduction rotation of the hollow shafts 8a and 8b, the configuration of the gear mechanism 102 of the other reduction mechanism body 10 is also substantially the same. Therefore, the same numbers are assigned and the description thereof is omitted. And it turns out that the hollow shafts 8c and 8d also have the same decelerated rotation, that is, low-speed rotation, as the hollow shafts 8a and 8b.
[0025]
Further, as shown in FIG. 6, the one speed reduction mechanism body 10 includes a gear mechanism 101 and a first case 103 having a substantially rectangular cross-sectional shape that houses the gear mechanism 101. The first pinion 10e to the second gear shaft 10b of the gear mechanism 101 are supported by the support member 105 from the upper surface portion and the bottom surface portion of the first case 103, respectively. Then, spacers 114 are provided between the first gear shaft 10a and the second gear shaft 10b and between the third gear shaft 10c and the fourth gear shaft 10d, respectively.
[0026]
As shown in FIG. 5, a ball bearing cup 107 for rotatably mounting the first pinion to the second gear shaft 10b of the gear mechanism 101 is provided on the front surface portion and the rear surface portion of the first case 103, respectively. ing. The first case 103 is formed by a combination of upper and lower case members, and includes a desired number of brackets 108 having an appropriate horizontal width that can be screwed at substantially the center in the vertical direction and stretched to the rear surfaces of the left and right side surfaces. . Then, the second case 104, which will be described later, disposed adjacent to the first case 103, for example, is formed integrally as shown in FIG. 6, and one case can be omitted as one component. Is desirable.
[0027]
Next, main features of the first embodiment of the stirring heat transfer device A according to the present invention will be described.
That is, as shown in FIG. 5, adjacent portions of the first and second cases 103 and 104 form stepped portions F and G, respectively, and the second and third gear shafts 10b and 10c and the reduction gear 10n, The left and right lengths and the front and rear width lengths of the entire case constituted by the first and second cases 103 and 104 can be set short as the left and right inner and outer surface shapes along 10n.
Further, the upper surface portion (upper lid) 109 of the first case 103 is provided with an air vent plug 110 provided with a filter, and when the apparatus is used for a long time, the odor and contamination generated in the first case 103 are obtained. Exhaust air to the outside. The bottom surface 111 of the first case 103 is formed of a fixed base or the like, and the inside of the first case 103 has a height of about ½ of the entire vertical height, for example, about 400 (l) of oil. An amount of oil H is charged. The bottom surface 111 and the side surface 113 of the first case 103 are provided with an oil discharge portion 112 for removing oil scum and residual substances generated due to the deterioration action of the oil H when the stirring heat transfer device A is used for a long time. ing. The oil discharge part 112 is constituted by a combination part of a cock and a faucet.
[0028]
The above is a description of one speed reduction mechanism 10, members constituting the gear mechanism 101, and each member constituting the first case 103, but the members constituting the gear mechanism 102 of the other speed reduction mechanism 10 or the first The members constituting the third gear shaft 10c, the fourth gear shaft 10d, and the second case 104 have substantially the same configuration, and the description thereof is omitted.
[0029]
Next, based on FIG. 7, the motor 11 mounted on the upper part of the said one and the other deceleration mechanism bodies 10 and 10 and its related structure are demonstrated.
In FIG. 7, the rotational force from the motor 11 mounted on the upper part of one speed reduction mechanism body 10 is further transmitted to the first and second gear shafts 10a and 10b and the gear couplings 8f and 8g via the speed reduction mechanism body 10. Furthermore, it is a block diagram in the case of transmitting to the drive side shafts 21a, 21a and the hollow shafts 8a, 8b, and shows a side view.
The motor 11 is a fully-closed outer door outdoor type AC motor having a power of, for example, about 30 kW, and each unit is mounted on each deceleration mechanism 10 as shown in FIG. The rotating shaft (motor shaft) 11a of the motor 11 includes a motor shaft pulley 11b.
The front end of the first pinion 10e is provided with a pinion shaft pulley 11d, and is adjacent to the motor shaft pulley 11b by a V-belt 106. The V-belt 106 is encapsulated from the outside by a safety cover 11c, and consideration is given so that work personnel and the like are not caught in the V-belt 106 when the motor 11 is driven. And since the pulley 11b, 11d has a substantially V-shaped cross section, and the V belt 106 is stretched over this, it absorbs this even when the rotating shaft 11a of the motor 11 vibrates, The V-belt 106 never leaves the pulleys 11b and 11d.
[0030]
Reference numeral 11e denotes a movable plate provided between the lower surface of the motor 11 and the upper surface portion 109 of the first case 103 of the one speed reduction mechanism 10, and this is moved to the left or right or front and back to move the V belt 106. And the pulleys 11b and 11d are controlled to be properly stretched. This eliminates the loss associated with the belt slip phenomenon, the rotation transmission delay phenomenon, and the like in combination with the unique structure of the pulleys 11b and 11d, thereby making it possible to construct a rational and compact motor.
[0031]
In the above description, the one speed reduction mechanism 10 and the motor 11 mounted on the speed reduction mechanism 10 and the related configuration have been described. However, the other speed reduction mechanism 10 and the like have the same configuration, and a description thereof will be omitted.
[0032]
Next, the operation of Embodiment 1 of the stirring heat transfer apparatus according to the present invention will be described.
For example, the processing object such as the granular material and the sludge supplied from the supply port 5 is generally switched on by turning on the control panel of the separately installed stirring heat transfer device A. The hollow shafts 8a to 8d in the casing 1 are operated at a rotational speed of, for example, 4 to 15 (rpm) through the operation of the one and the other speed reduction mechanism bodies 10 and 10. Then, a heat exchange medium P such as steam, hot water or cold water is introduced from the heat exchange medium introduction pipe 14 into the hollow shape of the stirring plate 13 through the hollow portions 8e of the hollow shafts 8a to 8d.
And the to-be-processed object supplied in the said casing 1 is stirred by the hollow stirring plates 13,13 ... which are arrange | positioned in series with inclination with respect to the longitudinal axis direction of the said hollow shafts 8a-8d. .
On the other hand, the heat exchange medium P is circulated from the heat exchange medium inlet 4 piped to the case body 3, flows into the through hole or the concave portion of the jacket 2, and the hollow portions of the hollow shafts 8 a to 8 d described above through the casing 1. 8e and the operation of the heat exchange medium P introduced into the hollow shape of the stirring plate 13 are used to heat or transfer the object to be processed inside the casing 1.
[0033]
Thus, the workpiece is transferred from one end (front end) of the casing 1 to the other end (rear end) while being subjected to heat exchange by a series of inclined hollow stirring plates 13, 13. However, the plurality of the hollow stirring plates 13, 13, 13 in the vicinity of the discharge port 7 are arranged in the longitudinal axis direction of the hollow shafts 8a, 8d, etc., that is, in the direction substantially perpendicular to the hollow shaft length. The front or back horizontal surface has a function as a stopper when the object to be processed is transferred to the other end (rear end) of the casing 1, and the object to be processed is the hollow stirring plate. 13, 13 and 13 are not pushed further rearward and are discharged from the discharge port 7 as processed objects, products, dried products or cakes.
[0034]
As described above, as long as the switch-on operation of the stirring heat transfer device A by, for example, a separate control panel is continued, the workpiece supplied from the supply port 5 is automatically stirred appropriately and heated or heat-transferred. And transferred. And it can take out freely by opening the opening-and-closing door 7d provided in the discharge port 7 from the opening part 6 installed in the other end (rear end) of the casing 1 as a product, a dried product, or a cake. The discharge amount of the object to be processed can be controlled by adjusting the degree of opening of the opening 6 in the weir 7a by the operation of the automatic lifting device 7b.
[0035]
Next, the operation of the rotation driving means 12 of the stirring heat transfer device A according to the present invention will be described in detail.
If a control panel (not shown) of the stirring heat transfer device A is switched on, the motor 11 such as an AC motor rotates at a high speed of about 800 (rpm) when the motor output is about 30 (kw), for example. I do. Therefore, the rotation shaft (motor shaft) 11a and the motor shaft pulley 11b are based on the high-speed rotation operation, and the pinion shaft is pivotally attached to the front end of the first pinion 10e of the one speed reduction mechanism body 10 via the V belt 106. This is transmitted to the pulley 11c and the first pinion 10e. The pinion teeth 10h of the first pinion 10e have substantially the same diameter as the first pinion 10e and rotate at substantially the same high speed. Since the pinion gear 10k of the second pinion 10f meshing with the pinion teeth 10h has a longer diameter than the pinion teeth 10h, the first stage is rotated at a low speed, that is, the first stage is decelerated. The pinion teeth 10i of the second pinion 10f have substantially the same diameter as the second pinion 10f and rotate at the same first-stage low-speed rotation. Since the pinion gear 10l of the third pinion 10g meshing with the pinion teeth 10i has a longer diameter than the pinion teeth 10i, the second-stage deceleration is performed at a lower speed than the first stage as the second stage. . The pinion teeth 10j of the third pinion 10g have a slightly longer diameter than the third pinion 10g, but the pinion teeth 10j of the third pinion 10g rotate at the same second-stage low-speed rotation.
[0036]
Thus, since the speed reduction gear 10m of the first gear shaft 10a meshing with the pinion teeth 10j has an extremely longer major diameter than the pinion gear 10l of the third pinion 10g, the second-stage low-speed rotation is performed. Further, the slow third-stage low-speed rotation, that is, the third-stage deceleration is executed. The third-stage low-speed rotation operation is to rotate the reduction gear 10m, that is, the first gear shaft 10a or the hollow shaft 8a at a low speed, and the rotation speed is compared with the rotation speed of the initial motor 11. For example, the speed is reduced to about 1/50 to 1/200, that is, about 4 to 15 (rpm). The reduction gear 10n provided on the second gear shaft 10b meshing with the reduction gear 10m is also in the opposite rotational direction and rotates at the same gear speed, and rotates in conjunction with the hollow shaft 8b. Here, the reduction ratio is represented by the number of revolutions (rpm) of the motor 11 with respect to the number of revolutions (rpm) of the reduction gear 10 m, and various pinion teeth, pinion gears, or first and second gears provided in the one reduction mechanism body 10. By changing the diameter and pitch of a reduction gear provided on the shaft, a suitable reduction can be obtained in the hollow shafts 8a and 8b. And the suitable rotational speed of the hollow shafts 8a-8d is set according to the kind, property, and material of the to-be-processed object supplied in the casing 1. FIG.
In addition, although the above demonstrated operation | movement of one speed reduction mechanism body 10 grade | etc., Since the other speed reduction mechanism body 10 grade | etc., Performs the same operation | movement, the description is abbreviate | omitted. The hollow shafts 8c and 8d are also decelerated and rotated at a low speed.
[0037]
Second Embodiment of the Invention
8, 9 and 10 show a second embodiment of the stirring heat transfer apparatus according to the present invention, which will be described.
[0038]
Since the second embodiment of the present invention particularly describes the speed reduction mechanism and the configuration related thereto, the other components are substantially the same as the first embodiment of the stirring heat transfer device according to the present invention described above, The description is omitted.
[0039]
FIG. 8 shows a second embodiment of the stirring heat transfer device according to the present invention, and is a plan view showing one end (front end) portion of the stirring heat transfer device A in particular. FIG. 9 is a front view of the stirring heat transfer device A as seen from the direction of arrows JJ in FIG. FIG. 10 is a cross-sectional view in the direction of arrows KK in FIG. 8, and is an enlarged cross-sectional view of a worm gear directly connected to the hollow shaft 8a and a pinion engaged with the worm gear.
[0040]
In the casing 1 of the stirring heat transfer device A, four hollow shafts 8 a, 8 b, 8 c, 8 d having the same diameter and the same length and having the same outer diameter are arranged along the longitudinal direction of the casing 1 as shown in FIG. Accordingly, they are spaced apart in parallel so that they can rotate, that is, they are horizontally placed in parallel in the horizontal direction. The casing 1 projects in a sealed manner from one end (front end) surface 1a of the casing 1, and is rotatably supported by a bearing portion 9a. The drive shafts 21a of the hollow shafts 8a to 8d are connected to a speed reduction mechanism body 115 as shown in FIG. 8, and the speed reduction mechanism 115 has, for example, 6 poles and a motor output of about 30 (kW). The motor shaft 11a of a motor 11 such as a reversible AC motor having a rotation speed of about 800 (rpm) is connected via a V belt 106. The rotational drive means 12 is configured by a combination of the speed reduction mechanism 115 and the motor 11.
[0041]
As shown in FIG. 10, the speed reduction mechanism body 115 is formed with a worm tooth 22a that is interlocked with the motor 11 and inclined at a predetermined angle, and is a hollow shape that is in a horizontal position at the same height on the motor shaft 11a. A worm 22, a first worm gear 23 having a pinion shaft 23b and a pinion shaft tooth 23c having a worm wheel tooth 23a meshing with the worm tooth 22a, and a second having a worm wheel tooth 24a meshing with the pinion shaft tooth 23c. The worm gear 24 is configured. The second worm gear 24 forms a hollow portion 24b, and in the hollow portion 24b, the hollow shafts 8a to 8d, that is, one end (front end) portion (drive side shaft) of the hollow shaft 8a is shown in FIG. ) 21a is fitted and fixed.
[0042]
On the other hand, the motor shaft 11a of the motor 11 includes a motor shaft pulley 11b, and is connected to the worm side pulley 22b through the V belt 106 from the pulley 11b. The worm side pulley shaft 22c is connected to the worm 22 through a bearing portion 22d and a coupling 22e. As described above, the worm 22 transmits the rotation operation of the motor 11 from the worm teeth 22a to the second worm gear 24 and the hollow shaft 8a sequentially through the components. Further, as shown in FIG. 8, the motor 11 is arranged in parallel with the speed reduction mechanism 115.
[0043]
In the figure, reference numeral 22f denotes a worm cover which houses the worm 22. Reference numeral 22e denotes a coupling that connects the worms 22 to each other. Reference numeral 23 d denotes the first worm gear cover, which covers the front end of the first worm gear 23. Reference numeral 24 c denotes the second worm gear cover, which covers the front end of the second worm gear 24.
[0044]
In the second embodiment of the stirring heat transfer device A according to the present invention, the example in which the speed reduction mechanism 115 is configured by the first and second worm gears 23 and 24 has been shown, but the present invention is not limited to this. It is also possible to simplify the speed reduction mechanism 115 by configuring the worm wheel with one worm gear having a long diameter.
[0045]
Next, the operation | movement is demonstrated about Embodiment 2 of the stirring heat exchanger based on this invention. For the operation to stir, heat transfer or heat and transfer the object to be processed such as powder and sludge supplied from the supply port 5 and discharge from the discharge port 7 as a processed product or a dried product or cake Since it is the same as Embodiment 1 of the invention, its description is omitted.
[0046]
The operation of the rotation drive means 12 of the stirring heat transfer device A according to the present invention, that is, the operation of the speed reduction mechanism 115 and related components will be described. First, the control panel (not shown) of the stirring heat transfer device A is switched on. To do. For example, when the motor output is 30 (kw), the motor 11 rotates at a high speed of about 800 (rpm). Therefore, the motor shaft 11a and the motor shaft pulley 11b transmit the rotation to the worm 22 through the V belt 106, the worm side pulley 22b and the worm side pulley shaft 22c based on the high speed rotation operation. As shown in FIG. 10, the worm wheel teeth 23a of the first worm gear 23 meshing with the worm teeth 22a of the worm 22 have a longer diameter than the worm teeth 22a. Rotate slowly in the direction, that is, reduce the first stage.
Since the worm wheel teeth 24a of the second worm gear 24 meshing with the pinion shaft teeth 23c having a short diameter are longer in diameter than the pinion shaft teeth 23c, the second worm gear 24 is, for example, the second stage The worm gear 23 is further rotated at a lower speed in the left direction L, which is the opposite direction, that is, second-stage deceleration. The low-speed rotation operation of the second stage is to rotate the second worm gear 24 and the hollow shaft 8a at a low speed, and the rotation speed is, for example, about 1/50 compared with the rotation speed of the initial motor 11. Decelerate to about 1/200, or 4-15 (rpm). Further, the hollow shaft 8b disposed adjacent to the hollow shaft 8a is set so that the inclination direction of the worm teeth 22a of the worm 22 provided in the speed reduction mechanism 115 of the hollow shaft 8a is set in the reverse direction. The second worm gear 24 is rotated in a direction opposite to that of the hollow shaft 8a, for example, in the right direction.
[0047]
Here, the reduction ratio is represented by the number of revolutions of the motor 11 with respect to the number of revolutions (rpm) of the second worm gear 24. The worm teeth 22a of the worm 22, the worm wheel teeth 23a of the first worm gear 23, the pinion shaft teeth 23c, By changing the diameter and pitch of the worm wheel teeth 24a of the second worm gear 24, a suitable deceleration can be obtained in the hollow shafts 8a and 8b. And the suitable rotational speed of the hollow shafts 8a-8d can be set according to the kind of the to-be-processed object supplied in the casing 1, the property, and the material.
Although the above describes the operation of the speed reduction mechanism 115 and the like provided in the hollow shafts 8a and 8b, the speed reduction mechanism 115 provided in the hollow shafts 8c and 8d performs the same operation and performs the operation of the hollow shaft 8c, 8d is also decelerated and rotates at a low speed.
[0048]
【The invention's effect】
The stirring heat transfer device according to the present invention has the following effects because it has the above-described configuration and operation.
[0049]
According to the first aspect of the present invention, a substantially horizontal casing having a supply port and a discharge port, a plurality of hollow shafts spaced in parallel in the longitudinal direction of the casing, and on the hollow shaft A plurality of hollow stirring plates that are inclined and spaced apart from each other on one and the other hollow shaft, and a device that allows a heat exchange medium to pass through the hollow shaft and the hollow stirring plate A heat transfer device, comprising: a first case and a second case that house a single reduction mechanism shared by a plurality of hollow shafts at one end of the hollow shaft via a connecting portion; Provided is a stirring heat transfer device characterized in that two adjacent surfaces of two cases are formed in steps.
Therefore, in the stirring heat transfer device configured as described above, a plurality of or a plurality of speed reduction mechanism bodies that are directly connected to one end of the hollow shaft on which the stirring plate is disposed via the connecting portion are provided. Since the single speed reduction mechanism shared by the first case and the second case is accommodated and the adjacent surfaces of the cases are formed in a stepped shape, the speed reduction mechanism itself and the motor and other accessories are small. In addition to realizing reduction in weight and weight, the width of the speed reduction mechanism can be set short, which has the effect of reducing the number of man-hours and costs of factory facilities or effectively utilizing the space in the factory.
[0050]
According to the second aspect of the present invention, the substantially horizontal casing having the supply port and the discharge port, the four hollow shafts spaced in parallel in the longitudinal direction of the casing, and the four hollow shafts Stirring heat transfer comprising a plurality of hollow stir plates spaced apart from each other on one and the other hollow shafts, and a device for passing a heat exchange medium through the four hollow shafts A pair of two hollow shafts having rotational directions opposite to each other among the four hollow shafts, and each of the pair of hollow shafts is connected to a single end via a connecting portion. Provided is a stirring heat transfer device including a first case and a second case that accommodate a speed reduction mechanism, and the adjacent surfaces of the first case and the second case are formed in steps.
In the stirring heat transfer device configured as described above, a pair of two hollow shafts of the hollow shafts having rotational directions opposite to each other in the four hollow shafts in which the speed reduction mechanism body is provided with the stirring plate is formed. Since each of the hollow shafts accommodates a single speed reduction mechanism body in the first case and the second case via a connecting portion at one end, and the adjacent surfaces of the cases are formed in a stepped shape, each of the four hollows Compared to the conventional speed reduction mechanism for each shaft, the size, weight, and quantity of the speed reduction mechanism itself and motors and other attached equipment can be halved, and the width of the speed reduction mechanism can be set shorter. There is an effect of promoting the practical use by saving the installation space.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a side view in which main portions showing an overall outline of a first embodiment of a stirring heat transfer device according to the present invention are cut away.
FIG. 2 is a plan view showing the internal structure of the casing, showing Embodiment 1 of the stirring heat transfer device according to the present invention.
FIG. 3 shows a first embodiment of an agitating heat transfer device according to the present invention, and is a cross-sectional view in the direction of arrows DD in FIG. 2;
FIG. 4 is a plan view showing a configuration of a speed reduction mechanism provided on one end (front end) side of a hollow shaft, showing Embodiment 1 of the stirring heat transfer device according to the present invention.
FIG. 5 is an enlarged horizontal sectional view showing an internal configuration of the speed reduction mechanism body according to the first embodiment of the stirring heat transfer device according to the present invention.
6 shows a configuration of the front surface of the speed reduction mechanism body according to Embodiment 1 of the stirring heat transfer device according to the present invention, and is a cross-sectional view in the direction of arrows EE in FIG.
FIG. 7 is a side view showing the configuration of the rotation driving unit according to Embodiment 1 of the stirring heat transfer device according to the present invention.
FIG. 8 is a plan view showing one end (front end) portion of a stirring heat transfer device A, showing a speed reduction mechanism body according to a second embodiment of the stirring heat transfer device according to the present invention.
9 is a front view of the stirring heat transfer device A as seen from the direction of arrows JJ in FIG.
10 is an enlarged cross-sectional view taken along the arrow KK in FIG. 8 and showing the configuration of the speed reduction mechanism.
[Explanation of symbols]
1 casing
1a One end face of the casing
1b The other end of the casing
1c Top cover of casing
2 Jacket
3 Case body
4a Heat exchange medium inlet
4b Heat exchange medium outlet
5 Supply port
6 outlet opening
7 outlet
7a weir
7b Automatic lifting device
7c Handle
7d door
8a-8d hollow shaft
8e Hollow part of hollow shaft
8f-8i gear coupling
9a, 9b Bearing part
10 Deceleration mechanism
10a to 10d 1st to 4th gear shaft
10e-10g 1st to 3rd pinion
10h to 10j pinion teeth
10k, 10l second and third pinion gears
10m, 10n reduction gear
11 Motor
11a Motor shaft
11b Motor shaft pulley
11c safety cover
11d Pinion shaft pulley
11e Movable platen
12 Rotation drive means
13 Hollow stirring plate
13A, 13B Notch of stirring plate
13C Small blade on the stirring plate
14 Heat exchange medium introduction pipe
15 Heat exchange medium outlet tube
16, 17 Introduction / extraction pipe
18, 19 Grand box
20 Rotary joint
21a Drive side shaft
21b Driven side shaft
22 Warm
22a Worm teeth
22b Worm pulley
22c Worm side pulley shaft
22d Bearing part
22e coupling
22f Warm cover
23 First worm gear
23a Worm wheel teeth
23b Pinion shaft
23c Pinion shaft teeth
23d 1st worm gear cover
24 Second worm gear
24a Worm wheel teeth
24b Hollow part
101, 102 Gear mechanism
103 1st case
104 Second case
105 Support member
106 V belt
107 ball bearing cup
108 Bracket
109 Upper surface of the first case (second case)
110 Air vent plug
111 Bottom surface of the first case (second case)
112 Oil discharge part
113 Side surface of the first case (second case)
114 spacer
115 Deceleration mechanism
A Stirring heat transfer device
B Horizontal width equivalent to the opening width of the outlet
C Same axial length as B above
F, G Stepped part
H oil
P Heat exchange medium
T1-T4 Direction of rotation of the hollow shaft

Claims (2)

A substantially horizontal casing having a supply port and a discharge port, a plurality of hollow shafts spaced in parallel in the longitudinal direction of the casing, and one and the other hollow shafts on the hollow shaft A stirring heat transfer device comprising a plurality of hollow stirring plates that are inclined and spaced apart, and a device that allows a heat exchange medium to pass through the hollow shaft and the hollow stirring plate. A first case and a second case accommodating a single reduction mechanism shared by a plurality of hollow shafts via a connecting portion at one end of the first and second cases, and the adjacent surfaces of the first case and the second case are stepped A stirring heat transfer device characterized by being formed. A substantially horizontal casing having a supply port and a discharge port, four hollow shafts spaced in parallel in the longitudinal direction of the casing, and one of the four hollow shafts on the other hollow shaft A stirring heat transfer device comprising a plurality of hollow stir plates spaced apart from each other and a device for allowing a heat exchange medium to pass through the four hollow shafts, wherein the four hollow shafts A first case in which a pair of two hollow shafts having mutually opposite rotational directions are paired, and a single speed reduction mechanism body is accommodated via a connecting portion at each one end of the pair of hollow shafts, and An agitation heat transfer device comprising a second case, wherein adjacent surfaces of the first case and the second case are formed in steps.

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