JP2006220007A - Pump for conveyance system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pump for a conveyance system, capable of efficiently conveying objects to be conveyed regardless of liquid and solid and of conveying solid materials without causing their deformation even when they are included in fluid. <P>SOLUTION: This pump for the conveyance system is provided with a long pump cylinder; a spiral plate with no axis, of which plurality of spiral plate portions are continued inside the pump cylinder in the cylinder axial direction of the pump cylinder, of which shafts at both end parts are supported by bearings in both end part sides of the pump cylinder, respectively, and which presses and sends objects to be conveyed from a suction port on one end part side to a discharge port on the other end part side; and a power source of which output shaft is connected with the shaft of the spiral plate with no axis via a connecting means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a transport system pump for transporting granular solids, high-viscosity materials, and the like in a predetermined direction.

In Patent Document 1, “a high-viscosity first pump having a multi-leaf rotary type and a screw-type second pump that pushes and feeds a liquid to be conveyed into the inside of the first pump through the suction port of the first pump as constituent elements. A “liquid transport device” is disclosed.
Patent Document 2 states that “a plate pump for pressing and pressurizing a high-viscosity material through a plate and feeding it to a pump. A "pump" is disclosed.

  The conveyance pumps described in these Patent Documents 1 and 2 have a liquid or high-viscosity material pumping means incorporated in the pump cylinder, and the "pressure feeding means" includes a long saddle-shaped central shaft, Because it is a “screw type” that is spirally formed on the outer peripheral surface of the central axis or formed with a spiral groove on the long central axis, it can efficiently transport objects to be transported regardless of liquid or solid. The problem was that it could not be transported.

In other words, the long shaft-shaped central shaft (screw) is naturally located at the center of the pump cylinder and becomes an obstacle to the conveyed object, so that a smooth flow could not be formed. Also, it is suitable when the object to be transported is a fluid, powder, etc., but is not suitable when there is a solid material (for example, a tofu or the like that should maintain its form in the soup) in the fluid. There was a problem that the tool was out of shape. Further, in the case where the object to be conveyed is granular, there is a problem in that a large load is applied to the power source as each of the particles becomes larger.
JP-A-9-203374 JP-A-10-54364

  The first object of the present invention is to solve the problems of Patent Documents 1 and 2 all at once. The second purpose is to make the pumping means strong and to rotate it stably. A third object is to rationally combine the members and reduce the number of parts to be configured. The fourth purpose is that the installation space can be effectively utilized.

  The pump for a transport system according to the present invention includes a long pump cylinder, and a plurality of spiral plate portions that are continuous in the cylinder axis direction of the pump cylinder in the pump cylinder, and the shafts at both ends are on both end sides of the pump cylinder. A shaft-less spiral plate that is supported by each of the bearings and that pumps the object to be conveyed from the suction port on one end side to the discharge port on the other end side, and the shaft of the spiral shaft without shaft and the connection means And a power source connected to the output shaft.

  The transport system pump according to the present invention includes a long pump cylinder and a plurality of spiral plate portions that are continuous in the cylinder axis direction of the pump cylinder, and are respectively provided at both ends of the pump cylinder. A shaft-less spiral plate that is rotatably supported by a bearing and that feeds a conveyed object from the suction port to the discharge port, and a drive motor that rotates the shaft-less spiral plate. The driven gear member of the speed reduction gear mechanism for transmitting the torque to the shaftless spiral plate is supported by one of the bearings, and the end of the shaftless spiral plate is integrally formed on the inner surface of the driven gear member. It is characterized by being fixed to.

  Furthermore, the pump for the transport system of the present invention has a long pump cylinder, a plurality of spiral plate portions that are continuous in the cylinder axis direction of the pump cylinder, and the shafts at both ends are the ends of the pump cylinder. And a shaftless spiral plate that is supported by a bearing fixed to the end of the pump cylinder or the end of the pump cylinder, and that pumps the conveyed object from the suction port on one end side to the discharge port on the other end side, A drive motor that rotates the shaft of the spiral plate, and one shaft of the spiral plate without the shaft is incorporated into the end of the pump cylinder or the end of the pump cylinder so as to protrude from the bearing, and the spiral plate It is provided separately so that it can rotate integrally with the end face of the part or independently.

(1) Since the spiral plate without an axis is used, the object to be transported can be efficiently transported regardless of liquid or solid. That is, a relatively large object can be transported even if the diameter is small as compared with a general screw-type pump.
(2) Even when there is a solid material (for example, a tool such as tofu to maintain its form in soups) in the fluid, it can be transferred so that the tool does not lose its shape.
(3) Since a smooth flow can be formed with respect to the conveyed object, even if the conveyed object is, for example, a granular object, it is difficult to apply a large load to the power source.
(4) Since the structure is simple, assembly, disassembly, parts cleaning, etc. are easy.
(5) Depending on the embodiment, the pressure feeding means can be made tough and can be rotated stably. In addition, the number of parts can be reduced by rationally combining the members. Furthermore, the installation space can be used effectively.

  There are a plurality of best modes for carrying out the present invention. Therefore, first, in this column, an example (first example) of the pump X having a basic configuration will be described, and the second example will be described in the next example column.

(1) Pump X and Conveying System With reference to FIG. 1, the entire conveying system including the pump X of the present invention will be described. X is a pump for a transport system that transports a transported object 1 (hereinafter also referred to as “high viscosity product”) such as a high viscosity liquid, a high viscosity material, a food paste, a soup, and a granular material. The basic configuration of the transport system pump X is directly from the container 2 storing or storing the high-viscosity material 1 or from the connection pipe 5 on the suction port 4 side through the supply pipe 3 connected to the container 2. The pump cylinder 6 to be received, and a plurality of spiral plate portions 12 in the pump cylinder 6 are continuous in the cylinder axis direction of the pump cylinder 6. There is no shaft that is rotatably supported via bearings 7 and 8 that are respectively provided at left and right positions) and that pumps the high-viscosity material 1 from the suction port 4 to the connection pipe 10 on the discharge port 9 side. It comprises a spiral plate 11, a projecting shaft 13 at one end of the spiral plate 11, and an output shaft 15 on the power source 16 side connected via a connecting means 14.

  The power source 16 is a manual or drive motor (this embodiment). Reference numeral 17 denotes a downstream discharge pipe, 18 denotes a filling machine, and 19 denotes a control device that controls the rotor of the drive motor when the power source 16 is a drive motor. When the power source 16 is an operation handle, the drive motor is not necessary in principle.

  Hereinafter, the transported object 1 may be a granular solid such as red beans, rice, and greece, but here, after explaining a specific example of the high-viscosity object 1 as an example of the transported object 1, FIGS. The transport system pump X of the first embodiment will be described with reference to FIG.

(2) High viscosity product 1
Examples of high-viscosity liquids include crushed foods such as vegetables, seafood, and meat. High viscosity materials are listed as building and vehicle paints, construction sealants, automobile oils, and adhesives. Moreover, when food paste is enumerated, it is a fluid such as tomato, pumpkin, and potato. Furthermore, when listing soups, it is a soup with ingredients having a size suitable for soups such as corn, tofu, potato, carrots, green peas, and onions.

  The transfer pump X of the present invention is suitable for the case where the high-viscosity material 1 having a specific shape or the shape of the material contained in the high-viscosity material 1 as a fluid or a fluid is pumped so as not to “deform” as much as possible. .

(3) Specific Configuration of Pump X The first embodiment will be described with reference to FIGS. FIG. 2 is a schematic explanatory view showing an external configuration of the pump X, FIG. 3 is a schematic cross-sectional view showing a specific configuration of the pump X, and FIG. 4 is an explanatory view from the front showing the simplest example of a shaftless spiral plate. FIG. 5 is an explanatory view from the side, and FIG. 6 is a schematic explanatory view when the shaftless spiral plate 11 is removed from the pump cylinder 6.

  First, each member and part will be described. In addition, explanation of detailed matters (obvious matters for those skilled in the art) is omitted. In the pump X of the first embodiment, a drive motor 16 with a reduction gear is a constituent requirement. As the drive motor 16 with a reduction gear, for example, a brushless (DC) motor having an annular permanent magnet on the rotor side is used. Therefore, the drive motor 16 can be controlled by the control device 19 including an inverter.

  Next, as shown in FIG. 3, the output shaft 15 of the drive motor 16 is a protruding shaft 13 of the spiral plate 11 housed in the pump cylinder 6 via a cylindrical connecting pipe 14 called “coupling”. It is connected to. The connecting pipe 14 is an example of the connecting means 14 and its configuration is not limited. The elongate pump cylinder 6 has a suction port 4 formed in a portion near the right end portion on the drive motor 16 side, and a connection pipe 5 is provided in the suction port 4. On the other hand, a discharge port 9 is formed at a portion near the left end corresponding to the head of the pump cylinder 6, and a connecting pipe 10 is provided at the discharge port 9. Although not particularly shown, the joint pipes 5 and 10 are appropriately formed with joint screwing portions.

  Thus, in the present embodiment, for example, a “shaftless spiral plate” as shown in FIG. 4 is used as the spiral plate 11. For convenience, FIG. 4 illustrates a case where the number of the spiral plate portions 12 is “two”. The number of spiral plate portions 12 is a feasible number of 2 or more to 10 or less, depending on the material and the width dimension.

  As shown in FIG. 3, the shaftless spiral plate 11 includes a plurality of spiral plate portions 12 continuously arranged in the cylinder axis direction of the pump cylinder 6, and a central portion of the end surface of the front and rear (left and right in FIG. 4) spiral plate portions 12. And a pair of projecting shafts 13 and 13 projecting from each other.

  Both ends of the pump cylinder 6 are provided with flange portions that are not labeled, and the left and right bearings 7 and 8 can be respectively removed from these flange portions via a plurality of fixing tools that are not labeled. It is fixed to. One of the projecting shafts 13 is a short shaft, while the other (drive motor side) projecting shaft 13 is a long shaft. As described above, the pump X can transport granular solids such as red beans in addition to the high-viscosity liquid, but when the transported object is a soup containing ingredients such as tofu and fried chicken, at least the drive motor side A seal member 20 is provided on the bearing 8 that supports the protruding shaft 13. In this embodiment, the bearing 8 is formed thicker than one of the bearings 7, and a ball shaft and an annular seal are housed therein.

  Therefore, the pump X according to the first embodiment protrudes from both ends of the drive motor 16, the pump cylinder 6 including the shaftless spiral plate 11 rotated by the driving force of the drive motor 16, and the shaftless spiral plate 11. Bearings 7 and 8 having front and rear ball shafts for supporting the projection shaft 13 provided, connection means 14 for connecting one of the projection shafts 13 and the output shaft 15 of the drive motor 16 in the axial direction, and preferably Is composed of an end portion of a pump cylinder 6 (not shown), a sealing means 20 for high-viscosity material provided at a bearing and the like. The protruding shaft 13 is appropriately designed as will be described later, and can be slidably provided in the end surface of the pump cylinder 6.

(4) Action of Pump X In the pump X, when the drive motor 16 is started, the shaftless spiral plate 11 is rotated in the pump cylinder 6 by the drive force of the drive motor 16. When the shaftless spiral plate 11 rotates, the conveyed object 1 enters the pump cylinder 6 from the suction port 4. The conveyed object 1 that has entered the pump cylinder 6 is transferred to the discharge port 9 while being pumped to the series of spiral plate portions 12. In the pump X of this embodiment, the switching valve that opens and closes the discharge port 9 is not a limiting requirement. Therefore, the conveyed object 1 transferred to the discharge port 9 is pushed out of the discharge port 9 as it is, and is discharged via the discharge pipe 17. It reaches the filling machine 18.

  The transported object 1 also flows in a portion where the shaft of the shaftless spiral plate 11 does not exist. Further, since the object 1 is guided to the continuous surface of the spiral plate portion 12 one after another like a “water slider” in the shape of a spiral plate, when the object 1 includes a tool, the tool can be easily “ Do not lose shape (crush).

  As shown in FIG. 6, the shaftless spiral plate 11 of the pump X can be easily pulled out from the pump cylinder 6 by separating the protruding shaft from the bearing or the like. Further, the location of the discharge port 9 formed in the pump cylinder 6 of the first embodiment may be the opening end of the pump cylinder 6.

  First, FIGS. 7 and 8 show that in the pump X of the first embodiment, the protruding shaft 13A has a large diameter so that it becomes at least one third or more with respect to the lateral width W of the end face 12a of the spiral plate portion 12. Is formed. The diameter of the shaft 13A of the shaftless spiral plate 11 in such an embodiment is preferably set to one third or more or within the inner diameter of the pump cylinder, and the shaft portion is made as strong as possible. Although the pump cylinder is long, its length is relatively determined by the number of unshafted spiral plates 11.

  Next, in the column of this embodiment, an embodiment different from the first embodiment (including substantially the same embodiment and an embodiment further limiting the constituent elements) will be described. In the description of different embodiments, the same parts as those in the first embodiment are denoted by the same or similar reference numerals, and redundant description is omitted.

  The second embodiment of the pump X1 shown in FIGS. 9 to 12 is mainly different from the first embodiment in that (a) the drive motor 16A is arranged in parallel with the pump cylinder 6, b) a reduction gear mechanism 27 having a transmission gear 25 and a driven gear member 26 meshing with the transmission gear 25 exists between the drive motor 16A and the shaftless spiral plate 11A; and (c) the driven gear member 26 includes: It has a disk or annular protruding portion 26a fitted to the bearing 8A, and a gear portion 26b connected to the protruding portion 26a in a flange shape, and the end surface 12a of the shaftless spiral plate 11A is formed on the inner wall surface of the protruding portion 26 And (d) the end of the pump cylinder 6 is fixed to the bearing 8A in a fitted state. (D) The driven gear member 26 is detachably fitted to the cylindrical bearing 8A.

  When configured as described above, the shaft of the shaftless spiral plate 11A can be strengthened by providing a shaft function to the protruding portion 26a of the driven gear member 26a that can effectively utilize the installation space. There are advantages such as being able to.

  Next, in the third embodiment of the pump X2 shown in FIGS. 13 and 14, the main difference from the first embodiment is that (a) at least one of the projecting shafts 13B of the shaftless spiral plate 11B is A disc-like portion 31 fixed or fitted to the end surface 12a of the spiral plate portion 12 and capable of sliding and rotating on the inner peripheral surface 6a of the end portion of the pump cylinder 6, and (b) outside the disc-like portion 31. A drive shaft 32 for power transmission protruding from the end (cylinder head) or bearing of the pump cylinder is fixed to the wall surface. (Iii) The drive shaft 32 is compared with the projecting shaft 13 on the drive motor 16 side. Then, the radius is large (for example, 2 times, 3 times, etc.). Even if comprised in this way, a shaft part can be made tough even a little.

  By the way, as an additional description, in the above configuration, for example, when a control motor (not shown) is disposed on one end of the pump cylinder 6, or when an operation handle or a control motor is directly attached. In this case, the driving force of the control motor or the like can be transmitted to the drive shaft 32 or the disk-shaped portion 31 via the clutch mechanism or without the clutch mechanism. In FIG. 15, reference numeral 10A denotes a connecting pipe for the second discharge port 9A.

  In the case of the pump X3 of the invention as described above, a new invention object of “quantitatively distributing the object to be conveyed” is further added to the present invention. For example, as shown in FIG. A plurality of (for example, two) discharge ports 9 and 9A are provided on the peripheral wall of the disc-shaped portion 31 with a required interval in the circumferential direction, and an arc-shaped switching valve 33 is connected to an appropriate portion of the peripheral edge of the disc-shaped portion 31. The drive shaft 32 or the disk-shaped portion 31 can be rotated by a driving force of the control motor or the like.

  In the above configuration, when the drive shaft 32 is rotated by the power of the control motor or the like, the arc-shaped switching valve 33 is switched to either the first discharge port 9 or the second discharge port. Therefore, a control motor (not shown) can be controlled by the control device 19 and the switching of the switching valve 33 can be automated.

  The invention is mainly manufactured in the pump industry and used in the field of transport systems.

1 to 6 are explanatory views showing the best embodiment (first embodiment) of the present invention. 9 to 12 show a second embodiment of the present invention, and FIGS. 13 and 14 show a third embodiment of the present invention. FIG. 15 is an explanatory diagram showing an example of a use invention using the main part of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing of the whole conveyance system containing the pump X of this invention. Explanatory drawing which shows the external appearance structure of the pump X of 1st Example. FIG. 3 is a schematic cross-sectional explanatory view showing the internal structure of the pump X. Explanatory drawing from the front which shows an example of the principal part (shaftless spiral board) of this invention. Explanatory drawing from the side of the principal part (shaftless spiral board) of this invention. Explanatory drawing which shows the place which is extracting the shaftless spiral board from the pump cylinder. Explanatory drawing of the magnitude | size of the axis | shaft of a spiral plate without an axis | shaft. Explanatory drawing of the magnitude | size of the axis | shaft of a spiral plate without an axis | shaft (schematic view seen from the edge part side). Schematic cross-sectional explanatory drawing which shows the internal structure of the pump X1 of 2nd Example. The schematic explanatory drawing at the time of seeing from a plane. Explanatory drawing of a different part from 1st Example (especially driven gear member which has a shaft function). Explanatory drawing of a different part from 1st Example. Explanatory sectional explanatory drawing which shows the internal structure of the pump X of 3rd Example. Explanatory drawing of a different part from 1st Example. Schematic cross-sectional explanatory drawing which shows an example of the pump X of utilization invention.

Explanation of symbols

X, X1 to X3 ... Pump, 1 ... Conveyed object, 2 ... Container, 3 ... Supply pipe, 4 ... Suction port, 5 ... Connection pipe on suction side, 6 ... Pump cylinder, 6a ... Inner peripheral surface, 7, 8, 8A ... Bearing, 9, 9A ... Discharge port, 10, 10A ... Connection tube on discharge port side, 11, 11A, 11B ... Spiral plate without shaft, 12 ... Spiral plate portion, 12a ... End face, W ... Horizontal width, 13 , 13A, 13B ... shaft, 14 ... connecting means, 15 ... output shaft, 16 ... power source, 16A ... drive motor, 17 discharge pipe, 18 ... filling machine, 19 ... control device, 20 ... seal member, 25 ... Transmission gear, 26 ... driven gear member, 26 a ... projection part, 26 b ... gear part, 27 ... reduction gear mechanism, 31 ... disk-like part, 32 ... drive shaft, 33 ... switching valve.

Claims (10)

A long pump cylinder and a plurality of spiral plate portions in the pump cylinder are continuous in the cylinder axis direction of the pump cylinder, and both end shafts are respectively supported by bearings on both ends of the pump cylinder, and A shaftless spiral plate for pumping the conveyed object from the suction port on one end side to the discharge port on the other end side, and a power source having an output shaft coupled to the shaft of the shaftless spiral plate and connection means A pump for a transport system equipped with. 2. The pump for a transport system according to claim 1, wherein the number of the spiral plate portions is 2 or more and 10 or less. 2. The pump for a transport system according to claim 1, wherein the shaft of the spiral plate without a shaft is a projecting shaft. The conveyance shaft according to claim 3, wherein the protrusion shaft is formed to have a diameter larger than at least one third of the lateral width W of the end face 12a of the spiral plate portion or within an inner diameter of the pump cylinder. System pump. A long pump cylinder, and a plurality of spiral plate portions continuous in the cylinder axis direction of the pump cylinder in the pump cylinder, and rotatably supported by bearings respectively provided at both ends of the pump cylinder; and A reduction gear that includes a shaftless spiral plate that pumps the conveyed object from the suction port to the discharge port, and a drive motor that rotates the shaftless spiral plate, and transmits the driving force of the drive motor to the shaftless spiral plate. The driven gear member of the mechanism is supported by one of the bearings, and the end of the shaftless spiral plate is integrally fixed to the inner surface of the driven gear member. System pump. 6. The transport system pump according to claim 5, wherein the driven gear member is detachably fitted to the cylindrical bearing. 6. The bearing according to claim 5, wherein a bearing is integrally provided at one end portion of the pump cylinder, and the protruding portion of the driven gear member is fitted in the bearing, while the gear portion protrudes from the bearing. The pump for the transport system. A long pump cylinder and a plurality of spiral plate portions in the pump cylinder are continuous in the cylinder axis direction of the pump cylinder, and both end shafts are fixed to the end of the pump cylinder or the end of the pump cylinder. A shaftless spiral plate that is supported by the bearings and that pumps the object to be conveyed from the suction port on one end side to the discharge port on the other end side, and a drive motor that rotates the shaft of the shaftless spiral plate One shaft of the shaftless spiral plate is incorporated in the end of the pump cylinder so as to protrude from the end of the pump cylinder or the bearing, and rotates integrally or independently with the end surface of the spiral plate portion. A transport system pump characterized in that it is provided separately so as to obtain. The shaft incorporated in the end portion of the pump cylinder according to claim 8 is connected to at least a disk-shaped portion that slides and rotates on the inner wall surface of the end portion of the pump cylinder, and an outer wall surface of the disk-shaped portion, And the pump for conveyance systems characterized by comprising the drive shaft which protrudes from the edge part of a pump cylinder. In Claim 8, when one shaft of the spiral plate without a shaft is provided separately so as to be able to rotate independently from the end face of the spiral plate portion, the discharge ports 9, 9A are pumps. 2. A pump for a transport system, wherein a plurality of pumps are provided on a peripheral wall of one end of a cylinder with a predetermined interval in the circumferential direction.

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