CN106351880A - Split type volute - Google Patents
Split type volute Download PDFInfo
- Publication number
- CN106351880A CN106351880A CN201611055937.4A CN201611055937A CN106351880A CN 106351880 A CN106351880 A CN 106351880A CN 201611055937 A CN201611055937 A CN 201611055937A CN 106351880 A CN106351880 A CN 106351880A
- Authority
- CN
- China
- Prior art keywords
- spiral case
- volute
- casing
- volute body
- upper casing
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a split type volute. The split type volute comprises an upper volute body, a lower volute body and a positioning pin, the upper volute body and the lower volute body are fixedly connected, and the positioning pin is connected between the upper volute body and the lower volute body in an inserted mode. The upper volute body is provided with a drainage channel, and after the upper volute body and the lower volute body are fixedly connected, a drainage cavity is formed between the drainage channel of the upper volute body and the lower volute body. The joint of the upper volute body and the lower volute body is provided with a flow inlet. The upper surface and the lower surface of the drainage channel are formed through milling. The split structure is adopted for the split type volute; the drainage channel of the volute is formed through milling, the surfaces of the flow channel are smooth, flow loss is reduced, and efficiency is improved; cost of a mold for casting the internal flow channel of the volute is omitted, and single-piece manufacturing cost is reduced.
Description
Technical field:
The present invention relates to a kind of split type spiral case.
Background technology:
Existing spiral case adopts monoblock type to cast, and casts spiral case inner flow passage rough surface, increases gas flow loss, and
Casting spiral case inner flow passage die cost is high, increases cost per unit.
Therefore, it is necessory to improve prior art to solve the deficiency of prior art.
Content of the invention:
The present invention is to solve the problems, such as that above-mentioned prior art provides a kind of split type spiral case.
The technical solution adopted in the present invention has: a kind of split type spiral case, including spiral case upper casing, spiral case lower casing and positioning
Pin, described spiral case upper casing is fixedly connected with spiral case lower casing, and alignment pin is plugged between spiral case upper casing and spiral case lower casing；
Described spiral case upper casing is provided with sluice way, after described spiral case upper casing is fixedly connected with spiral case lower casing, spiral case upper casing
It is formed with drainage lumens between sluice way and spiral case lower casing；
Described spiral case upper casing is provided with flow inlet with the junction of spiral case lower casing；
The upper and lower surface of described sluice way is all shaped by milling.
Further, described spiral case upper casing and spiral case lower casing pass through screw or be welded and fixed and are connected.
The invention has the following beneficial effects: the present invention adopts split-type structural, the sluice way of spiral case is shaped by milling,
Water passage surface is smooth, reduces flow losses, improves efficiency；Save casting spiral case inner flow passage die cost, reduce single-piece manufacture
Cost.
Brief description:
Fig. 1 is this sectional structure chart.
Fig. 2 is tomograph of the present invention.
Fig. 3 is another 3-D view of the present invention.
Specific embodiment:
The present invention is further illustrated below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, a kind of split type spiral case of the present invention, including spiral case upper casing 1, spiral case lower casing 2 and alignment pin 3,
Spiral case upper casing 1 is fixedly connected with spiral case lower casing 2, and alignment pin 3 is plugged between spiral case upper casing 1 and spiral case lower casing 2.
Sluice way 11 is provided with spiral case upper casing 1, after spiral case upper casing 1 is fixedly connected with spiral case lower casing 2, spiral case upper casing
It is formed with drainage lumens 10 between sluice way 11 and spiral case lower casing 2.Spiral case upper casing 1 is provided with flow inlet with the junction of spiral case lower casing 2
15, the inner port of this flow inlet 15 extends to the top of sluice way 11.Axis hole 21 is provided with spiral case lower casing 2, this axis hole 21 with
Drainage lumens 10 connect.
The upper and lower surface of the sluice way 11 in the present invention is all shaped by milling, smooth surface.
In the present invention, spiral case upper casing 1 and spiral case lower casing 2 pass through screw or be welded and fixed and are connected.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, these improvement also should be regarded as the present invention's
Protection domain.
Claims (2)
1. a kind of split type spiral case it is characterised in that: include spiral case upper casing (1), spiral case lower casing (2) and alignment pin (3), described snail
Shell upper casing (1) is fixedly connected with spiral case lower casing (2), and alignment pin (3) is plugged between spiral case upper casing (1) and spiral case lower casing (2)；
Described spiral case upper casing (1) is provided with sluice way (11), after described spiral case upper casing is fixedly connected with spiral case lower casing, spiral case upper casing
Sluice way (11) and spiral case lower casing between be formed with drainage lumens (10)；
Described spiral case upper casing (1) is provided with flow inlet (15) with the junction of spiral case lower casing (2)；
The upper and lower surface of described sluice way (11) is all shaped by milling.
2. as claimed in claim 1 split type spiral case it is characterised in that: described spiral case upper casing (1) and spiral case lower casing (2) pass through
Screw or be welded and fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055937.4A CN106351880A (en) | 2016-11-21 | 2016-11-21 | Split type volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055937.4A CN106351880A (en) | 2016-11-21 | 2016-11-21 | Split type volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106351880A true CN106351880A (en) | 2017-01-25 |
Family
ID=57862577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611055937.4A Pending CN106351880A (en) | 2016-11-21 | 2016-11-21 | Split type volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106351880A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050036887A1 (en) * | 2001-11-27 | 2005-02-17 | Hossein Nadjafizadeh | Centrifugal turbine for breathing-aid devices |
| CN201794822U (en) * | 2010-02-09 | 2011-04-13 | 中山大洋电机制造有限公司 | Novel air blower structure |
| CN201803461U (en) * | 2010-07-12 | 2011-04-20 | 中山市裕祥电器有限公司 | Exhaust fan volute housing for household gas water heater |
| CN103775361A (en) * | 2012-10-22 | 2014-05-07 | 信浓绢糸株式会社 | Blower |
| CN204436838U (en) * | 2015-01-29 | 2015-07-01 | 陈汉虎 | A kind of commercial kitchen tools blower fan |
| CN105298872A (en) * | 2015-11-27 | 2016-02-03 | 吉林省沃鸿医疗器械制造有限公司 | Fan |
| CN206206273U (en) * | 2016-11-21 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of split type spiral case |
-
2016
- 2016-11-21 CN CN201611055937.4A patent/CN106351880A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050036887A1 (en) * | 2001-11-27 | 2005-02-17 | Hossein Nadjafizadeh | Centrifugal turbine for breathing-aid devices |
| CN201794822U (en) * | 2010-02-09 | 2011-04-13 | 中山大洋电机制造有限公司 | Novel air blower structure |
| CN201803461U (en) * | 2010-07-12 | 2011-04-20 | 中山市裕祥电器有限公司 | Exhaust fan volute housing for household gas water heater |
| CN103775361A (en) * | 2012-10-22 | 2014-05-07 | 信浓绢糸株式会社 | Blower |
| CN204436838U (en) * | 2015-01-29 | 2015-07-01 | 陈汉虎 | A kind of commercial kitchen tools blower fan |
| CN105298872A (en) * | 2015-11-27 | 2016-02-03 | 吉林省沃鸿医疗器械制造有限公司 | Fan |
| CN206206273U (en) * | 2016-11-21 | 2017-05-31 | 南京磁谷科技有限公司 | A kind of split type spiral case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170125 |
|
| RJ01 | Rejection of invention patent application after publication |