CN204851782U - Fan volute - Google Patents
Fan volute Download PDFInfo
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- CN204851782U CN204851782U CN201520531831.1U CN201520531831U CN204851782U CN 204851782 U CN204851782 U CN 204851782U CN 201520531831 U CN201520531831 U CN 201520531831U CN 204851782 U CN204851782 U CN 204851782U
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Abstract
The utility model provides a fan volute, includes preceding curb plate, posterior lateral plate and bounding wall, its characterized in that: the outward flange of preceding curb plate and posterior lateral plate is equipped with the turn -up structure, and both sides are equipped with and turn over the border of rolling over with turn -up structure complex around the bounding wall, the arc turn -up of turn -up structure for adopting beading machine processing to form, the oriented enstrophe of the shaping U -shaped groove hem with the inner wall bounding wall counterbalance that roll over on the preceding curb plate of turn -up structure below and posterior lateral plate. The edge of spiral case is the turn -up structure, and the edge of preceding curb plate, posterior lateral plate passes through the turn -up structure and links to each other with the bounding wall, has solved that traditional production efficiency who adopts manual electric welding to lead to the fact is low, not environmental protection, has cut defect such as hand easily for it is more convenient to process, as long as it just can accomplish to adopt the beading machine to carry out the turn -up, has improved production efficiency greatly, and low in production cost, environmental protection moreover simultaneously still is difficult to cut the hand, has improved fan volute's intensity and security.
Description
Technical field
The utility model belongs to blower fan technical field, relates to that a kind of intensity is high, the volute of blower of use safety.
Background technique
Blower fan is that the custom of China to gas compression and gas conveying machinery is called for short, and is mainly used in the ventilation in all fields of national economies such as metallurgy, petrochemical industry, electric power, urban track traffic, weaving, boats and ships and various place.The main structural components of blower fan comprises impeller, spiral case, intake grill, support, motor, belt pulley, coupling, baffler, driving component (bearing) etc., wherein spiral case comprises the spiral case coaming plate of the ring-type of both front shroud, back shroud and connection, add and generally adopt man-hour the mode of Manual electric welding to be linked together in the two ends of spiral case coaming plate and front shroud, back shroud, not only manufacturing efficiency is low, not environmentally, and the edge of spiral case easily cuts hand, use is absolutely unsafe.
Through looking into, the existing patent No. is the Chinese utility model patent " a kind of centrifugal blower volute of range hood " of CN201120346682.3, comprises spiral case top board, spiral case base plate, spiral case coaming plate and volute flange, wherein spiral case top board is provided with intake grill; Spiral case base plate is provided with motor fixed hole; Spiral case coaming plate is the curved plate of continuous and derivable and its two ends are connected with spiral case top board, spiral case base plate respectively, and spiral case coaming plate comprises arc surface and helicoid; Volute flange is provided with exhaust outlet.This centrifugal blower volute also comprises snail tongue body, and snail tongue body is shaping separately, is made up of snail lingual surface, front-end face, ear end face and junction surface, is arranged on the arc surface place of spiral case coaming plate, and snail lingual surface forms the snail tongue of centrifugal blower volute.This volute of blower is also adopt the mode of welding to process, and manufacturing efficiency is low, and the edge of spiral case also easily cuts hand.
Summary of the invention
Technical problem to be solved in the utility model be provide for the above-mentioned state of the art a kind of easy to process, intensity is high and be not easy to cut the volute of blower of hand.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of volute of blower, comprise front side plate, back side panel and coaming plate, it is characterized in that: the outward edge of described front side plate and back side panel is provided with bead structure, the both sides, front and back of coaming plate are provided with the edge of the turnover coordinated with bead structure.
As improvement, described bead structure is adopt the arc crimping that processes of HEMMING MACHINE, the U-groove bevel flanging offseted with the inwall of the coaming plate front side plate below bead structure and back side panel forming fold inward.
As improvement, the middle part of described back side panel is provided with motor mounting hole, the middle part of front side plate is provided with intake grill, the end of front side plate and back side panel is longitudinally provided with the front connecting plate, the rear connecting plate that outwards turn down, the joint of coaming plate is laterally provided with upper fillet, the lower fillet of outwards turnover, after front side plate, back side panel are connected with coaming plate, between front connecting plate, rear connecting plate and upper fillet, lower fillet, form exhaust outlet.
Improve again, described front connecting plate, rear connecting plate are respectively equipped with mounting hole.
Compared with prior art, the utility model has the advantage of: the edge of spiral case is bead structure, the edge of front side plate, back side panel is connected with coaming plate by bead structure, solve tradition adopt the manufacturing efficiency that causes of Manual electric welding low, not environmentally, easily cut the defects such as hand, make processing more convenient, as long as adopt HEMMING MACHINE to carry out crimping just can complete, substantially increase manufacturing efficiency, and cost of production is low, environmental protection, also be not easy to cut hand simultaneously, improve intensity and the Security of volute of blower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional view of the present utility model;
Fig. 3 is the exploded view of Fig. 1;
Fig. 4 is the partial enlarged drawing of a-quadrant in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
As Fig. 1, 2, 3, shown in 4, the volute of blower of the present embodiment, comprise front side plate 1, the spiral case coaming plate 3 of back side panel 2 and ring-type, the middle part of front side plate 1 is provided with intake grill 13, the middle part of back side panel 2 is provided with motor mounting hole 23, the outward edge of front side plate 1 and back side panel 2 is respectively equipped with bead structure 11 and 21, the both sides, front and back of coaming plate 3 are provided with the edge 31 of the turnover coordinated with bead structure 11 and 12, bead structure 11 and 21 is the circular arc crimping adopting HEMMING MACHINE to process, add man-hour, adopt HEMMING MACHINE that front side plate 1 and back side panel 2 are carried out crimping to be respectively connected with the edge 31 of coaming plate 3, the U-groove bevel flanging 24 offseted with the inwall of coaming plate 3 front side plate 1 below bead structure 11 and 21 and back side panel 2 forming fold inward, like this edge 31 of coaming plate 3 is coated in bead structure 11 and 21, make front side plate 1, back side panel 2 is connected firmly with coaming plate 3, too increase the intensity of whole spiral case simultaneously, and be not easy to cut hand, use safer, front side plate 1 is longitudinally provided with the end of back side panel 2 the front connecting plate 12 and rear connecting plate 22 that outwards turn down, the joint of the correspondence of coaming plate 3 is laterally provided with the upper fillet 32 of outwards turnover and lower fillet 33, after front side plate 1, back side panel 2 are connected with coaming plate 3, front connecting plate 12, rear connecting plate 22 just in time dock with upper fillet 32, lower fillet 33 and form exhaust outlet 4, front connecting plate 12, rear connecting plate 22 are respectively equipped with mounting hole 14 and 25.
The present embodiment is easy to process and cost is low, substantially increases manufacturing efficiency.
Claims (4)
1. a volute of blower, comprises front side plate, back side panel and coaming plate, it is characterized in that: the outward edge of described front side plate and back side panel is provided with bead structure, and the both sides, front and back of coaming plate are provided with the edge of the turnover coordinated with bead structure.
2. volute of blower according to claim 1, it is characterized in that: described bead structure is adopt the arc crimping that processes of HEMMING MACHINE, the U-groove bevel flanging offseted with the inwall of the coaming plate front side plate below bead structure and back side panel forming fold inward.
3. volute of blower according to claim 2, it is characterized in that: the middle part of described back side panel is provided with motor mounting hole, the middle part of front side plate is provided with intake grill, the end of front side plate and back side panel is longitudinally provided with the front connecting plate, the rear connecting plate that outwards turn down, the joint of coaming plate is laterally provided with upper fillet, the lower fillet of outwards turnover, after front side plate, back side panel are connected with coaming plate, between front connecting plate, rear connecting plate and upper fillet, lower fillet, form exhaust outlet.
4. volute of blower according to claim 3, is characterized in that: described front connecting plate, rear connecting plate are respectively equipped with mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520531831.1U CN204851782U (en) | 2015-07-21 | 2015-07-21 | Fan volute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520531831.1U CN204851782U (en) | 2015-07-21 | 2015-07-21 | Fan volute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851782U true CN204851782U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520531831.1U Active CN204851782U (en) | 2015-07-21 | 2015-07-21 | Fan volute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279982A (en) * | 2021-05-31 | 2021-08-20 | 佛山市南海九洲普惠风机有限公司 | Fan structure |
-
2015
- 2015-07-21 CN CN201520531831.1U patent/CN204851782U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113279982A (en) * | 2021-05-31 | 2021-08-20 | 佛山市南海九洲普惠风机有限公司 | Fan structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |