CN110296084B - Vertical centrifugal pump - Google Patents
Vertical centrifugal pump Download PDFInfo
- Publication number
- CN110296084B CN110296084B CN201910616433.2A CN201910616433A CN110296084B CN 110296084 B CN110296084 B CN 110296084B CN 201910616433 A CN201910616433 A CN 201910616433A CN 110296084 B CN110296084 B CN 110296084B
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- China
- Prior art keywords
- pump shaft
- cover plate
- positioning
- upper cover
- auxiliary pump
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a vertical centrifugal pump, which comprises a pump body, a pump cover, a main pump shaft and a driving device, and is characterized in that: an impeller and an auxiliary pump shaft are arranged in an impeller cavity of the pump body, the impeller comprises a lower cover plate, an adjusting sleeve, blades and an upper cover plate, the blades are rotatably arranged on the upper cover plate, the inner end angles of the blades can be adjusted to penetrate through the adjusting sleeve, the auxiliary pump shaft is provided with a transmission groove which is in radial transmission fit with the adjusting sleeve, the lower end of the main pump shaft is in transmission fit with the upper end of the auxiliary pump shaft, and a movement limiting structure is arranged between the lower end of the auxiliary pump shaft and the lower end of the pump body; the upper cover plate is provided with a positioning cover, a positioning ring and a positioning table, the positioning ring is arranged on the periphery of the upper cover plate and is in press fit with the outer ends of the blades, the positioning cover can be arranged above the upper cover plate in a vertically moving mode and is driven by an auxiliary pump shaft, the lower end of the positioning cover is in press fit with the positioning ring, and a butterfly spring is arranged between the upper end of the positioning cover and the positioning table. The blade of the invention has adjustable installation direction and convenient adjustment.
Description
Technical Field
The invention relates to an improved invention in the field of water pump machinery, in particular to an improved invention of a vertical centrifugal pump.
Background
Part impeller among traditional type water pump includes front shroud, blade and back shroud, and the blade is fixed to be set up between front shroud and back shroud, and the direction of blade directly influences flow, lift, efficiency, the performance curve of water pump, because the blade is fixed, can't adjust, so can't be according to the installation direction of the reasonable adjustment blade of operating condition, angle between blade and the radial direction promptly.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art and provides a vertical centrifugal pump with adjustable blade installation direction and convenient adjustment.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme: this kind of vertical centrifugal pump, including the pump body, pump cover, main pump shaft and drive arrangement, the pump body has the impeller cavity and is located the installing port of impeller cavity upper end, and the pump cover lid closes at this installing port, main pump shaft rotates and wears to establish on the pump cover, and main pump shaft upper end links to each other its characterized in that with the drive arrangement transmission: an impeller and an auxiliary pump shaft are arranged in the impeller cavity, the impeller comprises a lower cover plate, an adjusting sleeve, blades and an upper cover plate, the lower cover plate is connected with the upper cover plate, the upper cover plate is connected with the lower end of the main pump shaft, the adjusting sleeve is rotatably arranged between the lower cover plate and the upper cover plate, the blades are rotatably arranged on the upper cover plate, the inner end angle of the blade can be adjusted and is arranged on the adjusting sleeve in a penetrating way, the auxiliary pump shaft passes through the upper cover plate, the adjusting sleeve and the lower cover plate, the auxiliary pump shaft is provided with a transmission groove which is in radial transmission fit with the adjusting sleeve, the transmission groove is axially matched with the adjusting sleeve in a sliding way, the lower end of the main pump shaft is provided with a groove, the upper end of the auxiliary pump shaft can movably extend into the groove, an auxiliary pump shaft return spring is arranged in the groove, a transmission structure is arranged between the groove and the auxiliary pump shaft, the lower end of the auxiliary pump shaft is arranged at the lower end of the pump body in a penetrating way, a movable limiting structure is arranged between the lower end of the auxiliary pump shaft and the lower end of the pump body, and an adjusting hand wheel is also arranged at the lower end of the auxiliary pump shaft; the upper cover plate is provided with a positioning cover, a positioning ring and a positioning table, the positioning ring is arranged on the periphery of the upper cover plate and is in compression fit with the outer end of the blade, the positioning cover can be arranged above the upper cover plate in a vertically moving mode, the lower end of the positioning cover is in compression fit with the positioning ring, a disc spring is arranged between the upper end of the positioning cover and the positioning table above the positioning cover, a V-shaped oscillating bar is arranged between the positioning cover and the upper cover plate, the outer end of the V-shaped oscillating bar is in transmission fit with the positioning cover, the inner end of the V-shaped oscillating bar penetrates through the upper cover plate and is in transmission fit with an auxiliary pump shaft, a driving boss is arranged on a corresponding auxiliary.
The transmission structure comprises a transmission block arranged at the upper end of the auxiliary pump shaft and a driving groove arranged in a groove at the lower end of the main pump shaft, the transmission block is in radial transmission fit with the driving groove, and the transmission block can axially move to be separated from or enter the driving groove.
The movable limiting structure comprises a limiting plate, a baffle and a clamping plate, wherein the lower end of the clamping plate is hinged in a notch at the lower end of the auxiliary pump shaft, a pressure spring is arranged between the clamping plate and the notch, the baffle is arranged at the lower end of the pump body and is in axial limiting fit with the clamping plate, and the limiting plate is arranged at the lower end of the baffle and is in radial limiting fit with the clamping plate.
The driving device comprises a motor and a support for supporting the motor, the support is divided into a suspension body and a middle support, the middle support is connected to the upper end of the valve body, the suspension body is connected to the upper end of the middle support, and the motor is installed on the upper end of the suspension body.
A sealing ring is arranged between the main pump shaft and the pump cover, a gland for compressing the sealing ring is arranged on the outer side of the pump cover, and the gland is fixed on the pump cover.
The improved vertical centrifugal pump has the advantages that by means of the design of the structures of the auxiliary pump shaft, the adjusting sleeve and the like, the mounting direction of the blades can be directly adjusted on site, an optimal position can be selected, and various performances of the pump are improved.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the impeller structure of the present invention.
FIG. 3 is an enlarged view of the part A of the present invention.
Fig. 4 is a cross-sectional view of the structure of fig. 2 according to the present invention taken along line E-E.
Detailed Description
The drawings show the structure of the invention, and the details thereof are further described below with reference to the drawings. The vertical centrifugal pump comprises a pump body 1, a pump cover 10, a main pump shaft 14 and a driving device 16, wherein the pump body 1 is provided with an impeller cavity 29, a mounting opening positioned at the upper end of the impeller cavity 29, and an inlet cavity 2 and an outlet cavity 9 which are communicated with the impeller cavity 29, the pump cover 10 covers the mounting opening, the main pump shaft 14 is rotatably arranged on the pump cover 10, the upper end of the main pump shaft 14 is in transmission connection with the driving device 16, an impeller 3 and an auxiliary pump shaft 8 are arranged in the impeller cavity 29, the impeller 3 comprises a lower cover plate 17, an adjusting sleeve 28, blades 18 and an upper cover plate 27, the lower cover plate 17 is connected with the upper cover plate 27, the upper cover plate 27 is connected with the lower end of the main pump shaft 14, the adjusting sleeve 28 is rotatably arranged between the lower cover plate 17 and the upper cover plate 27, the blades 18 are rotatably arranged on the upper cover plate 27, the middle parts of the specific blades 18 are rotatably connected with the upper cover plate, the corresponding adjusting sleeve 28 is provided with an adjusting hole, the inner end of the blade 18 can be arranged in the adjusting hole in a swinging mode, the auxiliary pump shaft 8 penetrates through the upper cover plate 27, the adjusting sleeve 28 and the lower cover plate 17, the auxiliary pump shaft 8 is provided with a transmission groove which is matched with the adjusting sleeve 28 in a radial transmission mode and used for driving the adjusting sleeve 28 to rotate, and the transmission groove is matched with the adjusting sleeve 28 in an axial sliding mode, so that when the auxiliary pump shaft 8 moves axially, the transmission groove cannot drive the adjusting sleeve 28 to move axially and keep the radial transmission matching; a groove 30 is formed in the lower end of the main pump shaft 14, the upper end of the auxiliary pump shaft 8 can movably extend into the groove 30, a return spring 25 of the auxiliary pump shaft 8 is arranged in the groove 30, the upper end of the return spring 25 is connected with the bottom of the groove, the lower end of the return spring 25 is connected with the upper end of the auxiliary pump shaft 8, a transmission structure is arranged between the groove 30 and the auxiliary pump shaft 8, the lower end of the auxiliary pump shaft 8 penetrates through the lower end of the pump body 1, a movement limiting structure is arranged between the lower end of the auxiliary pump shaft 8 and the lower end of the pump body 1; the upper cover plate 27 is provided with a positioning cover 21, a positioning ring 20 and a positioning table 26, the positioning ring 20 is arranged on the periphery of the upper cover plate 27, and the periphery of the upper cover plate 27 is provided with a step for supporting the positioning ring 20, the positioning ring 20 is in press fit with the outer end of the blade 18, the positioning cover 21 can move up and down and is arranged above the upper cover plate 27, the lower end of the positioning cover 21 is in press fit with the positioning ring 20, and the upper end of the positioning ring 20 is provided with a pressing groove for the positioning cover 21 to be jointed, a belleville spring 23 is arranged between the upper end of the positioning cover 21 and a positioning platform 26 positioned above the positioning cover 21, a V-shaped swing rod 22 is arranged between the positioning cover 21 and the upper cover plate 27, the middle part of the V-shaped swing rod 22 is hinged to the upper end of the upper cover plate 27, the outer end of the V-shaped swing rod 22 is in transmission fit with the positioning cover 21, the inner end of the V-shaped swing rod 22 penetrates through the upper cover plate 27 and is in transmission fit with the auxiliary pump shaft 8, a driving boss is arranged on the corresponding auxiliary pump shaft 8, and the inner end of the V-shaped swing rod 22 abuts against the lower side of the driving.
The transmission structure comprises a transmission block 24 arranged at the upper end of the auxiliary pump shaft 8 and a driving groove 31 arranged in a groove 30 at the lower end of the main pump shaft 14, the transmission block 24 is in radial transmission fit with the driving groove 31, and the transmission block 24 can axially move to be separated from or enter the driving groove 31.
The movable limiting structure comprises a limiting plate 4, a baffle 5 and a clamping plate 6, the lower end of the clamping plate 6 is hinged to a notch 32 in the lower end of the auxiliary pump shaft 8, a pressure spring 33 is arranged between the clamping plate 6 and the notch 32, the baffle 5 is arranged at the lower end of the pump body 1 and is in axial limiting fit with the clamping plate 6, and the limiting plate 4 is arranged at the lower end of the baffle 5 and is in radial limiting fit with the clamping plate 6. When the auxiliary pump shaft 8 moves downwards during working, the upper end of the clamping plate 6 is outwards popped under the action of the pressure spring 33 and is abutted against the lower end of the limiting plate 4 and the inner side of the limiting plate 4, and the auxiliary pump shaft 8 is limited to move upwards to reset under the action of the return spring 25; and when the clamping plate 6 is pressed, the clamping plate 6 overcomes the action of the pressure spring 33 and enters the notch 32 of the auxiliary pump shaft 8, and the axial movement limit of the limiting plate 4 and the baffle 5 on the auxiliary pump shaft 8 is released.
The driving device 16 comprises a motor and a support for supporting the motor, the support is divided into a suspension body 15 and a middle support 12, the middle support 12 is connected to the upper end of the valve body, the suspension body 15 is connected to the upper end of the middle support 12, and the motor is installed at the upper end of the suspension body 15.
A sealing ring 11 is arranged between the main pump shaft 14 and the pump cover 10, a gland 13 for compressing the sealing ring 11 is arranged on the outer side of the pump cover 10, and the gland 13 is fixed on the pump cover 10, so that the sealing performance between the main pump shaft 14 and the pump cover 10 is improved.
According to the working principle of the invention, the adjusting hand wheel 7 is pulled downwards to drive the auxiliary pump shaft 8 to move downwards, the driving boss on the auxiliary pump shaft 8 drives the inner end of the V-shaped ejector rod 22 to move downwards, the outer end of the V-shaped ejector rod 22 tilts upwards to jack the positioning cover 21, the positioning cover 21 releases the compression constraint on the positioning ring 20, and the positioning ring 20 releases the compression constraint on the outer end of the blade 18; then, the adjusting hand wheel 7 is rotated to drive the auxiliary pump shaft 8 to rotate, the transmission groove of the auxiliary pump shaft 8 drives the adjusting sleeve 28 to rotate, the adjusting sleeve 28 drives the inner end of the blade 18, so that the blade 18 rotates on the upper cover plate 27 around the positioning shaft 19, and the inner end of the blade 18 generates deflection in the adjusting hole of the adjusting sleeve 28, so that the adjustment of the installation direction of the blade 18 is realized, namely the angle adjustment between the blade 18 and the radial direction is realized; then, the clamping plate 6 is pressed, the clamping plate 6 overcomes the pressure spring 33 and enters the notch 32 of the auxiliary pump shaft 8, the movement limit of the limiting plate 4 and the baffle 5 on the auxiliary pump shaft 8 is released, the auxiliary pump shaft 8 moves upwards to reset under the action of the reset spring 25, the transmission block 24 at the upper end of the auxiliary pump shaft 8 enters the driving groove 31 of the groove at the lower end of the main pump shaft 14 to realize linkage, the positioning cover 21 presses the positioning ring 20 under the action of the butterfly spring, and the positioning ring 20 presses the outer end of the blade 18; finally, the driving device 16 drives the main pump shaft 14 to rotate, the main pump shaft 14 drives the auxiliary pump shaft 8 and the impeller 3 to rotate together, and the impeller 3 pumps water.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a vertical centrifugal pump, includes the pump body, pump cover, main pump shaft and drive arrangement, the pump body has the impeller cavity and is located the installing port of impeller cavity upper end, and the pump cover lid closes at this installing port, main pump shaft rotates and wears to establish on the pump cover, and main pump shaft upper end links to each other its characterized in that with the drive arrangement transmission: an impeller and an auxiliary pump shaft are arranged in the impeller cavity, the impeller comprises a lower cover plate, an adjusting sleeve, blades and an upper cover plate, the lower cover plate is connected with the upper cover plate, the upper cover plate is connected with the lower end of the main pump shaft, the adjusting sleeve is rotatably arranged between the lower cover plate and the upper cover plate, the blades are rotatably arranged on the upper cover plate, the inner end angle of the blade can be adjusted and is arranged on the adjusting sleeve in a penetrating way, the auxiliary pump shaft passes through the upper cover plate, the adjusting sleeve and the lower cover plate, the auxiliary pump shaft is provided with a transmission groove which is in radial transmission fit with the adjusting sleeve, the transmission groove is axially matched with the adjusting sleeve in a sliding way, the lower end of the main pump shaft is provided with a groove, the upper end of the auxiliary pump shaft can movably extend into the groove, an auxiliary pump shaft return spring is arranged in the groove, a transmission structure is arranged between the groove and the auxiliary pump shaft, the lower end of the auxiliary pump shaft is arranged at the lower end of the pump body in a penetrating way, a movable limiting structure is arranged between the lower end of the auxiliary pump shaft and the lower end of the pump body, and an adjusting hand wheel is also arranged at the lower end of the auxiliary pump shaft; the upper cover plate is provided with a positioning cover, a positioning ring and a positioning table, the positioning ring is arranged on the periphery of the upper cover plate and is in compression fit with the outer end of the blade, the positioning cover can be arranged above the upper cover plate in a vertically moving mode, the lower end of the positioning cover is in compression fit with the positioning ring, a disc spring is arranged between the upper end of the positioning cover and the positioning table above the positioning cover, a V-shaped oscillating bar is arranged between the positioning cover and the upper cover plate, the outer end of the V-shaped oscillating bar is in transmission fit with the positioning cover, the inner end of the V-shaped oscillating bar penetrates through the upper cover plate and is in transmission fit with an auxiliary pump shaft, a driving boss is arranged on a corresponding auxiliary.
2. A vertical centrifugal pump according to claim 1, wherein: the transmission structure comprises a transmission block arranged at the upper end of the auxiliary pump shaft and a driving groove arranged in a groove at the lower end of the main pump shaft, the transmission block is in radial transmission fit with the driving groove, and the transmission block can axially move to be separated from or enter the driving groove.
3. A vertical centrifugal pump according to claim 1, wherein: the movable limiting structure comprises a limiting plate, a baffle and a clamping plate, wherein the lower end of the clamping plate is hinged in a notch at the lower end of the auxiliary pump shaft, a pressure spring is arranged between the clamping plate and the notch, the baffle is arranged at the lower end of the pump body and is in axial limiting fit with the clamping plate, and the limiting plate is arranged at the lower end of the baffle and is in radial limiting fit with the clamping plate.
4. A vertical centrifugal pump according to claim 1, wherein: the driving device comprises a motor and a support for supporting the motor, the support is divided into a suspension body and a middle support, the middle support is connected to the upper end of the valve body, the suspension body is connected to the upper end of the middle support, and the motor is installed on the upper end of the suspension body.
5. A vertical centrifugal pump according to claim 1, wherein: a sealing ring is arranged between the main pump shaft and the pump cover, a gland for compressing the sealing ring is arranged on the outer side of the pump cover, and the gland is fixed on the pump cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910616433.2A CN110296084B (en) | 2019-07-09 | 2019-07-09 | Vertical centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910616433.2A CN110296084B (en) | 2019-07-09 | 2019-07-09 | Vertical centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110296084A CN110296084A (en) | 2019-10-01 |
| CN110296084B true CN110296084B (en) | 2020-08-25 |
Family
ID=68030843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910616433.2A Active CN110296084B (en) | 2019-07-09 | 2019-07-09 | Vertical centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110296084B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645870B (en) * | 2022-03-24 | 2023-12-08 | 东风汽车集团股份有限公司 | Water pump, engine and water pump control method of engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08312595A (en) * | 1995-05-15 | 1996-11-26 | Kubota Corp | Precedent stanby operating pump |
| EP1544474A2 (en) * | 2003-12-18 | 2005-06-22 | TCG Unitech Systemtechnik GmbH | Radial pump |
| CN2721917Y (en) * | 2004-08-06 | 2005-08-31 | 大连深蓝泵业有限公司 | Vertical pipeline pump |
| CN203978921U (en) * | 2014-07-14 | 2014-12-03 | 浙江昌利锻造有限公司 | Heat-dissipating impeller |
| CN208950902U (en) * | 2018-11-08 | 2019-06-07 | 合肥恒大江海泵业股份有限公司 | A kind of adjustment of blade angle device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033070U (en) * | 1988-06-08 | 1989-02-22 | 梁术华 | Flexible blade centrifugal impeller |
| JP2006029214A (en) * | 2004-07-16 | 2006-02-02 | Fuji Koki Corp | Drain pump |
-
2019
- 2019-07-09 CN CN201910616433.2A patent/CN110296084B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08312595A (en) * | 1995-05-15 | 1996-11-26 | Kubota Corp | Precedent stanby operating pump |
| EP1544474A2 (en) * | 2003-12-18 | 2005-06-22 | TCG Unitech Systemtechnik GmbH | Radial pump |
| CN2721917Y (en) * | 2004-08-06 | 2005-08-31 | 大连深蓝泵业有限公司 | Vertical pipeline pump |
| CN203978921U (en) * | 2014-07-14 | 2014-12-03 | 浙江昌利锻造有限公司 | Heat-dissipating impeller |
| CN208950902U (en) * | 2018-11-08 | 2019-06-07 | 合肥恒大江海泵业股份有限公司 | A kind of adjustment of blade angle device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110296084A (en) | 2019-10-01 |
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Effective date of registration: 20210111 Address after: 457000 East Road, 150m north of the intersection of Xindong road and Gaoyang Road, Pudong industrial agglomeration zone, Puyang City, Henan Province Patentee after: Henan Rongwei Industrial Co.,Ltd. Address before: No.63, Maidao North Road, Maidao village, Oubei street, Yongjia County, Wenzhou City, Zhejiang Province Patentee before: Yongjia Qida Intellectual Property Consulting Co.,Ltd. |