KR102607960B1 - Drying apparatus - Google Patents

Abstract

The present invention relates to a drying device having a detachable rotating shaft, preventing shear breakage of the rotating shaft due to forward and reverse rotation, and having a detachable rotating shaft that can be installed so that the circumference of the stirring blade fits tightly to the inner diameter of the drum.
For this purpose, the present invention includes a drum having both side plates with shaft holes, a power shaft installed to pass through the shaft holes on both sides of the drum to transmit power, a motor connected to rotate the power shaft, and the power shaft transmitting power of the motor. A drying device including a rotating shaft with both ends connected to both electric shafts to rotate, and a stirring blade mounted on the rotating shaft to stir the contents in the drum, wherein the electric shaft is separated from both side plates of the drum to rotatably support it. A packing assembly that can be coupled to prevent leakage, a clutch coupling that detachably connects both power shafts rotatably supported on the packing assembly to both ends of the rotation shaft, and a gap between the inner diameter of the drum and the stirring blade. The technical idea is to include peel scrap joined along the continuous curvature of the stirring blade to prevent this from forming.

Description

Drying apparatus with separate rotating shaft {DRYING APPARATUS}

The present invention relates to a drying device having a detachable rotating shaft, and more specifically, to a drying device having a detachable rotating shaft, preventing shear fracture of the rotating shaft due to forward and reverse rotation, and installing the stirring blade so that the circumference of the stirring blade fits snugly into the inner diameter of the drum. It relates to a drying device having a detachable rotating shaft.

As is well known, a drying device is a device that dries moisture from objects such as food waste or grains.

As prior art related to drying equipment, Korea Public Utility Model No. 20-1996-0035273 (publication date: November 21, 1996) ‘Drying device for dryer’, Republic of Korea Patent Publication No. 10-2001-0036643 (publication date: 2001) May 7, 2005) 'Direct fire rotary dryer', Republic of Korea Patent No. 10-0239820 (registration date October 22, 1999) 'Method of mixing and grinding contents in high-speed drying or high-speed fermentation dryer and drying or fermentation drying thereof Device', Korea Registered Utility Model No. 20-0184824 (registration date March 27, 2000) 'Selection device for circulation grain dryer', etc.

A general drying device including this prior art includes a drum 30 containing contents such as food waste or grains, and a rotary shaft 10 that is rotatably supported by a bearing at the center of the drum 30 and rotates with power transmitted from a motor. ), it has in common a stirring wing 20 that is mounted on the rotating shaft 10 and stirs the contents of the drum 30 to dry it.

Figure 5 is an exemplary cross-sectional view of the interior of a typical drying device.

The drying device includes a sprocket and chain (not shown) that transmit power from a motor (not shown) to the rotating shaft 10 and its surroundings, and a bearing (not shown) that rotatably supports the rotating shaft 10 and its surroundings. The most wear occurs in the gland packing (not shown), which prevents leakage of the seat and the rotating shaft 10, and the surrounding areas.

In the conventional drying apparatus described above, in order to repair areas where wear occurs, covers installed on both sides must be disassembled and then dedicated equipment must be brought inside to dismantle all of the rotating shafts 10.

However, since the rotating shaft 10 is formed to be quite long and weighs about 1.5 tons, in order to enter dedicated equipment such as a crane or forklift, many auxiliary equipment installed around the drying equipment must be dismantled and the goods installed to enable operation of the equipment. There was the inconvenience of having to clean it up and secure enough work space.

In addition, since the rotating shaft 10 is formed as one piece through a processing machine, it cannot be repaired and reused, which not only leads to the cost burden of replacement, but also leads to damage due to downtime because the drying device cannot be operated during replacement work. There was this.

In addition, a transmission shaft is connected to both ends of the rotating shaft 10 through flanges to transmit the power generated by the motor to the rotating shaft 10. When excessive torque is applied to the stirring blade 20 when the rotating shaft 10 rotates forward or reverse, As the load is transferred to the bolt connecting the flange, causing loosening of the bolt or leading to shear fracture of the bolt, and the center of the rotation axis 10 moves, not only rapid wear and vibration of the rotation axis 10 occur, but also the rotation axis 10 ) was bent or, in severe cases, broke, causing a problem that could shorten the lifespan of the drying equipment.

In addition, due to the large size of the drum 30, it was manufactured through a process of welding several disks curved to a predetermined curvature through processing such as rolling, so it could not be made into a completely round circle.

As a result, a predetermined gap is formed between the inner diameter of the drum 30 and the circumference of the stirring blade 20, as shown in FIG. 5, so the content fixed by heat accumulates on the inner diameter of the drum 30 and is carbonized, thereby dissipating heat. As conduction is blocked, the stirring and drying time of the contents are delayed, and there is a problem that workers are always put into the inside of the drum to remove carbonized contents, and there is always a safety risk lurking during the work process.

Additionally, the location where the drying device is operated is installed at a local government that collects commonly seen food waste or at a company entrusted by the local government to dispose of food waste. Therefore, if the operation is stopped for a long period of time, tens of tons of food waste produced per day cannot be processed, resulting in the surrounding area. Although the processing is distributed to local governments or processing companies, there are problems with financial problems and various environmental problems and civil complaints during the repair period due to the limited processing capacity of each region.

(0001) Republic of Korea Open Utility Model No. 20-1996-0035273 (publication date: November 21, 1996) (0002) Republic of Korea Patent Publication No. 10-2001-0036643 (publication date May 7, 2001) (0003) Republic of Korea Patent No. 10-0239820 (registration date: October 22, 1999) (0004) Republic of Korea Registered Utility Model No. 20-0184824 (registration date: March 27, 2000)

The present invention was devised to solve the conventional problems as described above. The purpose of the present invention is to provide a detachable rotating shaft to facilitate and speed up repair work due to wear and excessive torque when the stirring blade rotates forward and backward. The aim is to provide a drying device with a separate rotating shaft that prevents shear fracture of the rotating shaft due to , and that allows smooth stirring and drying of the contents by installing the stirring blade so that the circumference fits the inner diameter of the drum.

In order to achieve the above object, the present invention provides a drum having both side plates with shaft holes formed, a power shaft each installed to pass through the shaft holes on both sides of the drum to transmit power, a motor connected to rotate the power shaft, and power of the motor. In the drying device, which includes a rotating shaft whose ends are respectively connected to the two electric shafts for transmitting and rotating, and a stirring blade mounted on the rotating shaft to stir the contents in the drum, A packing assembly that is detachably coupled to both side plates to prevent leakage, a clutch coupling that detachably connects the both transmission shafts rotatably supported on the packing assembly to both ends of the rotation shaft, and the inner diameter of the drum and the stirring. The technical idea is to include fill scrap joined along the continuous curvature of the stirring blades to prevent a gap from being formed between the blades.

The packing assembly includes a base flange fixed to both side plates of the drum so that the transmission shaft penetrates, a packing box in which gland packing is installed, which is detachably coupled to the base flange and coupled to the outer diameter of the transmission shaft, and the It may include a packing gland that is detachably coupled to the packing box to secure the gland packing.

An inner flange is provided at the inner end of the packing box to be detachably coupled to the base flange to align the center seated on the box sheet formed on the outer surface of the base flange, and the packing gland is located at the outer end of the packing box. An outer flange may be provided to be detachably coupled, and a gland flange may be provided at an outer end of the packing gland to be detachably coupled to the outer flange of the packing box.

The clutch coupling may include a first clutch coupling provided at an inner end of the transmission shaft, and a second clutch coupling provided at an end of the rotating shaft to engage the first clutch coupling.

At this time, the first clutch coupling includes a first coupling disk provided at the inner end of the transmission shaft, a plurality of first claws protruding at predetermined intervals along the inner edge of the first coupling disk, and the first coupling disk. 1 It may include a first coupling flange provided around the coupling disk.

At this time, the second clutch coupling includes a second coupling disk connected to both ends of the rotating shaft, and a plurality of second claws that protrude at predetermined intervals along the inner edge of the second coupling disk and engage with the first claw. , and may include a second coupling flange provided around the second coupling disk.

According to the present invention implemented as a solution described above, the rotating shaft is easily and quickly separated from the drum by the packing assembly and clutch coupling, thereby reducing replacement costs and reducing work time to minimize damage due to downtime. It has a very useful effect.

And according to the present invention implemented as the above-described solution, the clutch coupling connecting the rotating shaft and the transmission shaft absorbs excessive torque acting on the stirring blade when the rotating shaft rotates forward and reverse, thereby preventing shear breakage of the rotating shaft or bolt. In addition, it has a very useful effect of preventing rapid wear and vibration by maintaining the aligned center of the rotation axis.

In addition, according to the present invention implemented as a solution described above, the content is adhered to the inner diameter of the drum and carbonized by joining peel scrap along the circumference of the stirring blade to form a gap between the inner diameter of the drum and the stirring blade as small as possible. This has the very useful effect of being able to adhere to stirring and drying times through smooth conduction of heat.

1 is a cross-sectional view showing the internal structure of a drum according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing the disassembled state of the rotating shaft according to an embodiment of the present invention.
Figure 3 is a perspective view showing the disassembled state of the rotating shaft according to an embodiment of the present invention.
Figure 4 is a perspective view showing the disassembled state of the coupler according to an embodiment of the present invention.
Figure 5 is an exemplary cross-sectional view of the interior of a typical drying device.

In order to fully understand the present invention, preferred embodiments of the present invention will be described below with reference to the attached drawings.

Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those with average knowledge in the art.

Accordingly, the shapes of components expressed in the drawings may be exaggerated to emphasize a clearer explanation, and it should be noted that the same members may be indicated by the same reference numerals in each drawing.

Additionally, detailed descriptions of well-known functions and configurations that are judged to unnecessarily obscure the gist of the present invention may be omitted.

A drying apparatus having a separate rotating shaft 300 according to an embodiment of the present invention includes a drum 100 having both side plates 110 on which shaft holes 120 are formed, each of which penetrates the shaft holes 120 on both sides of the drum 100. A transmission shaft 200 that is installed and transmits power, a motor connected to rotate the transmission shaft 200, a rotation shaft 300 whose both ends are respectively connected and rotated to both transmission shafts 200 that transmit the power of the motor, and a rotation shaft. A stirring wing 400 mounted on (300) to stir the contents in the drum 100, a packing assembly 500 detachably coupled to both side plates 110 of the drum 100, and both electric shafts 200. It includes a clutch coupling 600 detachably connected to both ends of the rotating shaft 300, and a fill scrap 700 joined along the circumference of the stirring blade 400.

First, Figure 1 is a cross-sectional view showing the internal structure of the drum 100 according to an embodiment of the present invention.

Referring to FIG. 1, the drum 100 is formed in a cylindrical shape with an empty interior to accommodate contents such as food waste or grains.

Side plates 110 are provided on both left and right sides of the drum 100, and a shaft hole 120 is formed in the center of both side plates 110 through which the transmission shaft 200 passes.

The transmission shaft 200 functions to transmit power generated from a motor (not shown) to the rotation shaft 300.

For this purpose, the outer end of the transmission shaft 200 is connected to the motor through a transmission member.

Here, the transmission member may be implemented as a sprocket motor (not shown) installed on the transmission shaft 200 and the motor, and a chain motor (not shown) connecting the sprockets on both sides.

Optionally, the transmission member may be implemented as a pulley motor (not shown) installed on the transmission shaft 200 and the motor, and a belt motor (not shown) connecting the pulleys on both sides.

The rotating shaft 300 functions to rotate the stirring blade 400 by power transmitted to the electric shaft 200.

Coupling holes 310 may be formed at both ends of the rotating shaft 300 so that the clutch coupling 600 can be detachably keyed.

The stirring blade 400 is formed in a spiral shape, and both ends are firmly mounted on the rotating shaft 300.

Referring to the partially enlarged view shown in FIG. 1, the circumference of the stirring blade 400 is formed to be spaced apart from the inner diameter of the drum 100 at a predetermined distance (G).

For example, the perimeter of the stirring blade 400, which has a continuous curvature, may be formed to be spaced apart from the inner diameter of the drum 100 by a gap G of approximately 30 mm.

The reason for this is that the spaced gap G can be filled with fill scrap 700.

The packing assembly 500 is detachably coupled to both side plates 110 of the drum 100 and functions to rotatably support the transmission shaft 200 and prevent leakage through the shaft hole 120.

Figure 2 is a cross-sectional view showing the disassembled state of the rotating shaft 300 according to an embodiment of the present invention, and Figure 3 is a perspective view showing the disassembled state of the rotating shaft 300 according to an embodiment of the present invention.

Referring to Figures 2 and 3, the packing assembly 500 is separated into a base flange 510 and a base flange 510 fixed to both side plates 110 of the drum 100 so that the transmission shaft 200 penetrates. A packing box 520 in which the gland packing 530, which is capable of being coupled to the outer diameter of the transmission shaft 200, is installed, and a packing that is detachably coupled to the packing box 520 to fix the gland packing 530. Includes gland 540.

The base flange 510 is formed in a hollow, flat, round disk shape to continuously communicate with the shaft hole 120, and functions to detachably couple the packing box 520 and the packing gland 540. The base flange 510 is fixed to the outer surfaces of both side plates 110 of the drum 100 by welding with bolts. A box sheet 511 is formed on the outer surface of the base flange 510 to seat the inner flange 521 of the packing box 520, and a plurality of tap holes 512 are formed in the box sheet 511 in the circumferential direction. A gasket is installed between the inner flange 521 and the box seat 511 of the packing box 520.

The packing box 520 is designed to prevent liquid from leaking through the transmission shaft 200 penetrating the shaft hole 120 of the drum 100, and a gland packing 530 is installed inside the packing box 520. It is enclosed. An inner flange 521 is integrally provided at the inner end of the packing box 520 and is detachably coupled with a bolt screwed to the tap hole 512 of the base flange 510. The inner flange 521 of the packing box 520 can be seated on the box sheet 511 and align the joining centers. An outer flange 522 is integrally provided at the outer end of the packing box 520, and the packing gland 540 is detachably coupled with a bolt.

The packing gland 540 functions to press and secure the gland packing 530 enclosed in the packing box 520. A gland flange 541 is integrally provided at the outer end of the packing gland 540 and is detachably coupled to the outer flange 522 of the packing box 520 with a bolt.

The clutch coupling 600 has the function of removably connecting both transmission shafts 200 to both ends of the rotation shaft 300 to transmit the rotational force of the transmission shaft 200 to the rotation shaft 300, and to the stirring blade 400. It also serves the function of preventing shear fracture of the rotating shaft 300 due to the action of excessive torque.

Figure 4 is a perspective view showing the disassembled state of the coupler according to an embodiment of the present invention.

Referring to FIG. 4, the clutch coupling 600 is a first clutch coupling 610 provided at the inner end of the transmission shaft 200, and the rotation shaft 300 is engaged with the first clutch coupling 610. It includes a second clutch coupling 620 provided at the end.

The first clutch coupling 610 is a first coupling disk 611 provided at the inner end of the transmission shaft 200, and protrudes at a predetermined interval (G) along the inner edge of the first coupling disk 611. It includes a plurality of first claws 612 and a first coupling flange 613 provided around the first coupling disk 611.

The first coupling disk 611 is formed in a disk shape and is integrally provided at the inner end of the transmission shaft 200.

The first claw 612 is engaged with the second claw 622 to transmit the power of the transmission shaft 200 to the second clutch coupling 620. In Figure 4, three first claws 612 are formed, but four or more can be formed as needed.

The first coupling flange 613 functions to detachably couple the first clutch coupling 610 and the second clutch coupling 620 by screwing a bolt and a nut. Between the inner surface of the first coupling flange 613 and the inner surface of the first coupling disk 611, a first alignment groove ( 614) is formed.

The second clutch coupling 620 includes a second coupling disk 621 connected to both ends of the rotating shaft 300, and a plurality of protruding at predetermined intervals (G) along the inner edge of the second coupling disk 621. It includes a second claw 622 and a second coupling flange 623 provided around the second coupling disk 621.

The second coupling disk 621 is formed in the shape of a disk. This second coupling disk 621 is equipped with a coupling shaft 625 and is detachably keyed to the coupling holes 310 on both sides of the rotation axis 300. do.

The second claw 622 engages with the first claw 612 and transmits the power of the transmission shaft 200 to the rotation shaft 300. In Figure 4, three second claws 622 are formed, but four or more can be formed as needed.

The second coupling flange 623 functions to detachably couple the second clutch coupling 620 and the first clutch coupling 610 by screwing a bolt and a nut. A second alignment groove is provided between the inner surface of the second coupling flange 623 and the inner surface of the second coupling disk 621 to align the position of engagement with the first claw 612 of the first clutch coupling 610. is formed

The above-described clutch coupling 600 absorbs excessive torque acting on the stirring blade 400 during forward and reverse rotation of the rotation shaft 300, and thus can prevent shear breakage of the rotation shaft 300 or bolts as in the prior art. .

The peel scrap 700 is attached to the circumference of the stirring blade 400 and functions to prevent a gap G from being formed between the drum 100 and the stirring blade 400.

Referring to FIG. 1, the circumference of the stirring blade 400 has a continuous curvature, and this circumference is spaced apart from the inner diameter of the drum 100 at a predetermined distance (G).

Referring to the partial enlarged view shown in FIG. 1, peel scrap 700 in the shape of a thin, flat square plate is welded around the stirring blade 400, and is formed between the inner diameter of the drum 100 and the stirring blade 400. Fill the gap (G).

For example, when the gap (G) between the circumference of the stirring wing 400 and the inner diameter of the drum 100 is 30 mm, peel scrap 700 with a width of 50 to 70 mm is placed on the stirring wing 400. By joining it to the circumference, it is filled so that the gap (G) between the inner diameter of the drum 100 and the stirring blade 400 is as small as possible.

According to the above-described embodiment of the present invention, the rotation shaft 300 is easily and quickly separated from the drum 100 by the packing assembly 500 and the clutch coupling 600, thereby reducing replacement costs and shortening work time. This has the advantage of minimizing losses due to downtime as much as possible.

In addition, according to the above-described embodiment of the present invention, the clutch coupling 600 connecting the rotation shaft 300 and the transmission shaft 200 generates excessive torque acting on the stirring blade 400 when the rotation shaft 300 rotates forward and backward. Since it absorbs as is, it has the advantage of preventing shear fracture of the rotating shaft 300 or the bolt, as well as maintaining the aligned center of the rotating shaft 300 to prevent rapid wear and vibration.

In addition, according to the embodiment of the present invention described above, fill scrap 700 is joined along the circumference of the stirring blade 400 to reduce the gap G between the inner diameter of the drum 100 and the stirring blade 400 as much as possible. As it is formed, it has the advantage of preventing adhesion and carbonization of the contents to the inner diameter of the drum 100 and ensuring agitation and drying time through smooth conduction of heat.

The embodiments of the present invention described above are merely illustrative, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

Therefore, it can be well understood that the present invention is not limited to the forms mentioned in the detailed description above.

Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims, and the present invention includes the technical spirit defined by the appended claims and all modifications, equivalents, and works within the scope thereof. It should be understood to include substitutes.

100: drum 110: side plate
200: transmission shaft 300: rotation shaft
400: Stirring wing 500: Packing assembly
510: Base flange 520: Packing box
530: Gland packing 540: Packing gland
600: Clutch coupling 610: First clutch coupling
620: Second clutch coupling 700: Peel scrap

Claims (6)

A drum having both side plates with shaft holes, a power shaft installed to pass through the shaft holes on both sides of the drum to transmit power, a motor connected to rotate the power shaft, and both ends of the power shaft transmitting power of the motor. A drying device comprising a rotating shaft that is connected and rotated, and a stirring blade mounted on the rotating shaft to stir the contents in the drum,
A packing assembly that is detachably coupled to both side plates of the drum to rotatably support the transmission shaft to prevent leakage,
A clutch coupling that detachably connects both transmission shafts rotatably supported on the packing assembly to both ends of the rotation shaft, and
Peel scrap joined along the continuous curvature of the stirring blade to prevent a gap from being formed between the inner diameter of the drum and the stirring blade.
Includes,
The clutch coupling is,
A first clutch coupling provided at the inner end of the transmission shaft, and
A second clutch coupling provided at the end of the rotating shaft to engage the first clutch coupling.
Includes,
The first clutch coupling is,
A first coupling disk provided at the inner end of the transmission shaft, a plurality of first claws protruding at predetermined intervals on the protruding portion with a step at the edge of the first coupling disk, and the first coupling disk It includes a first coupling flange provided around the circumference,
The second clutch coupling is,
A second coupling disk connected to both ends of the rotating shaft, a plurality of second claws protruding at predetermined intervals on the protruding portion with a step at an edge of the second coupling disk and engaging with the first claw, and 2 It includes a second coupling flange provided around the coupling disk,
A first alignment groove for aligning the engagement position with the second claw between the inner surface of the first coupling flange and the inner surface of the first coupling disk, and
A drying device having a separate rotating shaft, characterized in that a second alignment groove is formed between the inner surface of the second coupling flange and the inner surface of the second coupling disk to align the position of engagement with the first claw. In claim 1,
The packing assembly is,
A base flange fixed to both side plates of the drum so that the transmission shaft penetrates,
A packing box in which gland packing is installed, which is detachably coupled to the base flange and coupled to the outer diameter of the transmission shaft, and
A packing gland that is detachably coupled to the packing box to secure the gland packing.
A drying device having a separate rotating shaft, comprising: In claim 2,
An inner flange is provided at the inner end of the packing box to be detachably coupled to the base flange to align the center seated on the box sheet formed on the outer surface of the base flange, and the packing gland is located at the outer end of the packing box. A drying apparatus having a separable rotating shaft, characterized in that an outer flange is provided to be separably coupled to the packing gland, and a gland flange is provided at an outer end of the packing gland to be separably coupled to the outer flange of the packing box. delete delete delete

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