KR20000029359A - Rotary transfer apparatus - Google Patents

Abstract

PURPOSE: A rotary return device is provided to reduce a friction of a casing and a rotor by water or air, to prevent a leakage of a sealing agent lubricated by a lubricating oil, a sealing agent of a teflon group, air or water and to improve a sealing performance. CONSTITUTION: A rotary return device is composed of multiple compartment(6), a hollow core shaft divided into the same number of the compartments and a rotor having a closed chamber on its one side and partitions on both sides. A hollow core slave shaft(10) having a divided part is communicated with the divided hollow core shaft. A strainer hole is installed to correspond to the compartment on the wall(4). The compartment and a divided one unit of the hollow core shaft are communicated with each other via a hole installed on the hollow core shaft. Air can flow out from an aperture(12) if the compartment is sealed in high pressure state. Accordingly, the gushing of the air sealed in the compartment to a hopper(7) is controlled surely. And the abrasion of a casing when the air is gushed is prevented.

Description

Rotary transfer apparatus

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary conveying device for conveying soil, slurry, and the like, and more particularly, to a reliable seal structure such as an axial bearing.

The inventors have already disclosed a seal structure in a rotary conveying apparatus. (Utility Publication No. 7-13838) In this technique, a seal member corresponding to the internal pressure of the moving chamber is pushed out from near the plate outer end, so that the seal member is bad. Unexpected circumstances have arisen to increase the sealability of the mobile room.

Here, the sealing member made of an elastic material is secured to the wall of the rotor chamber to obtain a sealing effect, and when only the relationship between them is seen, it can be expected to perform a reliable sealing. However, when the air for sending a conveyed object such as a slurry flows back into the rotor chamber, and the high-pressure air trapped in the moving chamber opens the inlet, it is unavoidable to eject in the state containing mud and sand. Therefore, if this phenomenon is repeated many times, the inner wall of the rotor chamber may be damaged by mud and sand, leading to wear. In addition, in the prior art, a large sliding friction is generated in the rotating shaft near the bearing so that the rotor of a large size and a heavy load rotates, and the rotary shaft itself wears in a short time when sand or the like enters.

Disclosure of Invention The present invention solves the above-mentioned problems, and discloses a rotary conveyance device which improves the sealability and has less wear on the metal part.

1 is a longitudinal sectional view showing a preferred embodiment of the present invention.

2 is a cross-sectional view showing a preferred embodiment of the present invention.

3 is a cross-sectional view showing the configuration of the driven shaft other end and the cap.

4 is a cross sectional view showing a relationship between a driven shaft and a cap;

5 is a cross-sectional view illustrating a seal structure of a casing and a rotor.

Explanation of symbols on the main parts of the drawings

1: rotor 2: hollow shaft

2a: Perforation 3.3: Closed Wall

4.4 bulkhead 5: plate

6: compartment 7: hopper

8: drive shaft 9: pulley

10: driven shaft 11: hollow part

11a: dividing wall 12: opening

13: cap 14: drive side bearing

15: driven bearing 16: dropping cylinder

17: air supply port 20: upper casing

21: lower casing 22: cylindrical sleeve

23: sealing material 24: strainer

25: rib 30: air outlet

41: pressing chamber 42: piston

43: air chamber 44: nozzle

50: sleeve 52: inner sleeve

53: inner casing 54: Teflon seal material

55: sealing material such as compression valve 56: pressing member

57: nozzle 58: open end

59: lubricant supply nozzle

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a compartment partitioned into a plurality of plates radially from the hollow shaft, and divides the electric hollow shaft axially in the same direction as the electrical compartment, and partitions on both sides of the partition and its A rotor having a closed wall on the outside and a drive shaft of the inner chamber supporting the rotor from both sides, and a hollow driven shaft having a partition corresponding to the divided hollow shaft as a hollow, the partition corresponding to a compartment A means for providing a strainer hole and opening a perforation provided in the hollow shaft to communicate a divided unit of the compartment and the hollow shaft, and at the other end of the driven shaft, adopts a means corresponding to the divided portion. The rotor is not supported by the drive shaft as in the prior art, but has a hollow drive shaft and is supported by the drive shaft and the driven shaft from both sides, respectively. When the strainer hole acts to escape the air to the outside when the compartment is sealed under high pressure, the strainer hole is introduced into one unit of the hollow shaft corresponding to the chaff through the air and the perforated air discharged from the strainer. It is discharged to the outside from the opening via the hollow part of the driven shaft divided according to the unit.

In this way, seal failure is avoided by sealing the high pressure air in the compartment. Although the object to be conveyed is a slurry in the present invention, the object is not limited to such a high water content, and does not mean that the object to be conveyed with little moisture is excluded from the object.

In addition, the means is provided to be rotated in the rotor and the cylindrical casing, the upper portion of the casing is provided with a hopper, the lower portion of the conveying object drop cylinder, and the conveying object drop cylinder is provided with an air supply port facing the conveying direction. Was used. In order to inject a hopper and a conveyed thing from the upper part into a conveying apparatus, a conveyance drop container performs a function for conveying a conveyed thing downstream. In addition, there is also a function of causing the conveyed material introduced into the air supply port and the conveyed object dropping cylinder to flow downstream by air pressure. In addition, in Claim 3, the sealing material which watertightly contacts a casing is provided in the plate front-end | tip part. In this means, the compartment achieves a closed state and becomes an effective conveying means.

In addition, the other end of the driven shaft was fitted with a cap, and a means for providing one air outlet at a position corresponding to a plurality of openings provided in the driven shaft was also used. In this configuration, the air supplied from the air supply port and inserted into the compartment is regularly discharged once in one rotation of the rotor, thereby avoiding unexpected air leakage.

In addition, in order to increase the sealing function, a nozzle for supplying water or air to the casing is opened at the contact portion between the rotor and the casing, and a lubricant supply nozzle is opened at the outside of the nozzle, and both sides of the lubricant supply nozzle are The means which installs the sealing material which sequentially absorbs a lubricating oil, and the sealing material of a Teflon system is used. Water or air can reduce the friction between the casing and the rotor, so that the sealant and Teflon-based sealant and air or water that are lubricated by the lubricating oil are not leaked to the outside in an unfavorable manner, and the sealability is improved. .

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described according to attached drawing. FIG. 1 is a cross-sectional view of a center longitudinal section of a rotary conveying apparatus, and 1 is a rotor, and has a blocking wall 3.3 on both sides with respect to the hollow rotating shaft 2. 4.4 is a partition provided inside in parallel with the obstruction wall 3.3, and four compartments 6 are formed by the four plates 5 provided radially from this partition 4.4 and the rotating shaft 2. As shown in FIG. 7 is a hopper for feeding such as a slurry shown as an example of the object to be conveyed. 8 is a drive shaft which rotates the rotor 1 in the state inserted into the blocking wall 3 in the side of the rotor 1. The drive shaft 8 is connected to a motor for power (not shown) via the pulley 9 or the like. 10 is a driven shaft located on the opposite side to the drive shaft 8, and has a hollow portion 11 along the axis. 12 is an opening provided in the edge part of the driven shaft 10, and is in communication with the hollow part 11. The opening 12 is shielded, and the cap 13 is fitted to the driven shaft 10 without gaps. 14 is a drive side bearing, 15 is a driven side bearing. 16 is a dropping cylinder of a slurry as a conveyed material, and is provided with the air supply port 17 for sending in and inject | pouring air with respect to a conveyance direction. In addition, a conveying pipe (not shown) or the like is connected to the slurry dropping cylinder to form a predetermined conveying path.

FIG. 2 is a cross sectional view of the rotor 1, in which 20 is an upper casing continuous with the hopper 7, 21 is a lower casing, 22 is a cylindrical sleeve with both ends open, and a sleeve 22 The plate 5 rotates along the inner wall of the plate. At the tip of each plate 5, a sealing material 23 for improving the sealing property is provided. 24 is a strainer which forms a hole in the partition 4, and is provided freely from a mesh material. Even when the water of the slurry secured in the compartment 6 and the high pressure air supplied from the air supply port 17 flow back to the compartment 6, the slurry 6 is led to the outside via the strainer 24. Moreover, as clearly shown in Fig. 2, the perforation 2a communicates with the hollow portion of the rotation shaft 2, and the hollow portion is divided into four ribs 25, 25 of two surfaces intersecting at the center. Therefore, one perforation 2a corresponds to one division part. That is, it is comprised in this way, Comprising: Compartment 6, the perforation 2a, and one division part correspond completely.

FIG. 3 shows a longitudinal section of a portion including the opening 12 of the driven shaft 10, wherein the driven shaft 10 is hollow, and at the same time, the dividing wall 11a is provided so as to divide the hollow into four in the axial direction. have. Therefore, when the angle of the split wall 11a of the driven shaft 10 and the rib 25 which divides the rotating shaft 2 into four is made | matched, and the rotor 1 is supported by the driven shaft 10, the rotating shaft 2 is carried out. From four to the driven shaft 10 as a whole. In addition, the structure of the dividing wall 11a is obtained by subjecting the driven shaft 10 to the cutting shaft integrally, and also to push the cylindrical cylinder which divided the inside into four by using the hollow driven shaft 10 as a sleeve. It may be obtained by. 30 is an air discharge port, and is provided at a position corresponding to the position of the opening 12 shown in FIG.

Referring to the operation of the conveying apparatus having the above-described configuration, first, the pulley 9 is driven by the power of the motor, the drive shaft 8 connected thereto rotates, the motor 1 also rotates together, and the rotor ( In conformity with 1), the driven shaft 10 divided into four hollow parts also rotates together. Thus, when a slurry containing moisture or the like is introduced into the hopper 7 in this state, the slurry is accommodated in the compartment 6, and when rotated to the lower side, the slurry is disposed of in the dropping cylinder 16, and the air supply port 17 It is conveyed downstream by the air taken out from the. Here, air is continuously supplied from the air supply port 17 at a pressure of several kilos, so that the same air pressure is applied to the compartment 6, and the compartment 6 is connected to the sleeve 22 by the continuous rotation. If there is a thing which becomes a closed room in the inside, bad circumstances, such as a mud discharge, arise when rotating to the hopper 7 side conventionally. However, in this embodiment, each compartment 6 is provided with the strainer 24, and air leaks from the strainer 24 before the inside of the compartment 6 becomes high pressure. Air leaked in this way is introduced into the divided hollow portion of the rotating shaft 2 through the through hole 2a corresponding to the specific compartment 6, and subsequently divided into the dividing wall 11a of the driven shaft 10. It is introduced into the hollow. As a result, the hollow portion is in a state of higher pressure than the outside air. However, the driven shaft 10 also rotates with the rotation of the rotor 1, so that the opening 12 corresponding to the hollow portion in the high pressure state communicates with the outside air at a time when the air outlet 30 reaches the air outlet 30, The excess pressure is released into the atmosphere through the air outlet port 30 by the amount of. Therefore, by doing in this way, the seal | sticker part of a rotor takes an excess air pressure, and it is possible to suppress abrasion and the ejection to the opposite direction of a slurry. In addition, in the structure of this embodiment, the air discharge path | route from the compartment 6 to the opening 12 is complicated, and the flow path resistance is large by the quantity, and as a result, the discharge pressure from the air discharge port 30 It is possible to suppress it.

In addition, in the case of continuous operation, the strainer 24 may be clogged, but the air flow path is reversed by suctioning the high pressure air from the air discharge port 30 reversely, and the mud attached to the strainer 24, etc. Can be pulled to the isolation chamber 6 side. This operation is performed at regular maintenance. It is needless to say that the size and strength of the strainer 24 are appropriately changeable corresponding to the mixed state of the slurry and the nature of the slurry.

FIG. 4 discloses a technique in which the cap 13 is continually pressed from one direction of the driven shaft 10 rotating on the inner surface in showing the configuration of the cap 13 portion. Here, 41 is a press part provided in the cap 13, 42 is a piston which presses the press part 41 from one direction, 43 is an air chamber, 44 is a nozzle for introducing air into the air chamber 43. As shown in FIG. In addition, illustration of the dividing wall 11a of the driven shaft 10 is omitted. The air may be supplied from an independent compressor, but may be supplied so that the high pressure air of the air supply port 17 provided in the discharge cylinder 16 is divided. With such a configuration, when the piston 42 constantly presses the cap 13 from one direction corresponding to the driven shaft 1, and the air discharge port 30 is provided on the pressed surface, the driven shaft 10 may be small. In this vicinity, since it is in intimate contact, it is possible to avoid air leakage due to wear. In addition, the air discharged from the air discharge port 30 is fed back to the air supply port (17).

Next, FIG. 5 is a longitudinal sectional view showing the relationship between the casings 20 and 21 and the rotor 1, and a structure mainly focusing on the lubrication system is disclosed. In the figure, 50 is a rotor body, 51 is a stainless steel sleeve, 52 is an inner sleeve made of high-strength steel in consideration of rust prevention, and the rotor 1 is comprised by these. There is a lubrication structure between the casing 20 and the rotor 1. 53 is an inner casing of high carbon steel, 54 is a sealing material of Teflon system, 55 is a sealing material such as a compression valve, and the sealing material 54 located at both ends has a tapered surface extending toward the rotor 1 side. Moreover, close contact is maintained correspondingly to the rotor 1 so that it may be constantly pressed inward by the press member 56 from the outer side. 57 is a nozzle of water or air, and water or air supplied from the nozzle is repeatedly inserted between the inner sleeve 52 and the inner casing 53, and finally from the open end 58 on the left side in the drawing. It is to be discharged | emitted to the compartment 6, and discharge amount does not become large and there is no problem. 59 is a lubricating oil supply nozzle, and supplies lubricating oil, such as grease, to the sealing material 55 suitably. As a result, the supply of this lubricating oil prevents water and the like from leaking to the outside.

The present invention comprises a plurality of compartments and a rotor having a hollow shaft divided into the same number as the compartment in the axial direction, and a rotor having a compartment on both sides and a closed chamber on the outside thereof, so as to correspond to a hollow and divided hollow shaft. A hollow driven shaft having an installment communicates therewith, and a partitioner is provided in the partition wall corresponding to the compartment, and a divided unit of the compartment and the hollow shaft is communicated through a perforation provided in the hollow shaft. An opening is provided at the other end corresponding to the division part, and when the compartment is sealed in a state of high pressure, air can come out from the opening. Therefore, it is possible to reliably suppress the air enclosed in the compartment from ejecting to the hopper side, and it is also possible to avoid wear of the casing or the like during the ejection of air.

The rotor and the cylindrical casing are rotatably housed, the upper part of the electric casing is provided with a hopper, the lower part is provided with a dropping container, and the dropping container is provided with an air supply port for the broadcasting direction. The conveyed article can be reliably conveyed downstream by air. Therefore, in Claim 3, the sealing material which comes into watertight contact with a casing is provided in the plate front end part, and a compartment can achieve a closed state, and it can become an effective conveying apparatus.

Therefore, the cap is fitted to the other end of the driven shaft without gap, and the cap is supplied from the air supply port by providing one air exhaust port at a position corresponding to a plurality of openings provided in the driven shaft. It is made to discharge | emit regularly once per rotation of enclosed air and rotor, and it becomes possible to avoid unexpected air leakage.

In addition, in order to increase the sealing function of the rotor and the casing, a nozzle for supplying water and air to the casing is opened at both contact portions, and a lubricant supply nozzle is opened at the outside of the nozzle to provide both sides of the lubricant supply nozzle. The sealing material which absorbs lubricating oil and Teflon-type sealing material in order can reduce the friction of a casing and a rotor by water or air, and the sealing material lubricated by lubricating oil and Teflon-type It is possible to improve the sealing property while preventing the sealing material and air or water from leaking to the outside in bad circumstances.

Claims (5)

A rotor having a compartment divided radially from the hollow shaft into a plurality of plates, the hollow shaft being divided in the axial direction by the same number as the electric compartment, and a partition wall and a closed wall on the outside thereof provided on both sides thereof; A hollow driven shaft having a drive shaft of an inner chamber for supporting the rotor from both sides and a hollow shaft having a partition corresponding to the divided hollow shaft as a hollow; and the partition wall is provided with a strainer hole corresponding to the compartment. A rotary conveying apparatus characterized by communicating one divided unit between the compartment and the hollow shaft through a through hole provided in the shaft, and openings corresponding to the divided portion at the other end of the driven shaft. The rotor and the cylindrical casing are rotatably received, an upper portion of the casing is provided with a hopper, and a lower portion of a conveying object drop is provided, and the conveying object drop is provided with an air supply port corresponding to the conveying direction. Rotary transport apparatus characterized in that the installation. 3. The rotary conveying apparatus according to claim 2, wherein the plate tip portion is provided with a sealing material in watertight contact with the casing. The rotary conveying apparatus according to claim 1, wherein a cap is fitted to the other end of the driven shaft without gap, and one cap is provided at a position corresponding to a plurality of openings provided in the driven shaft. 3. A nozzle according to claim 2, wherein a nozzle for supplying water or air to the casing is opened at a contact portion between the rotor and the casing, and a supply nozzle for lubricating oil is opened outside the nozzle, and on both sides of the supply nozzle for lubricating oil. A rotary conveying apparatus, characterized in that a sealing material that sequentially absorbs lubricating oil and a sealing material of Teflon-based.