CN202545253U - Floating combined sealing structure of vehicle-mounted dry type screw compressor - Google Patents
Floating combined sealing structure of vehicle-mounted dry type screw compressor Download PDFInfo
- Publication number
- CN202545253U CN202545253U CN2012201172497U CN201220117249U CN202545253U CN 202545253 U CN202545253 U CN 202545253U CN 2012201172497 U CN2012201172497 U CN 2012201172497U CN 201220117249 U CN201220117249 U CN 201220117249U CN 202545253 U CN202545253 U CN 202545253U
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- CN
- China
- Prior art keywords
- sealing
- ring
- handle
- floating
- seal
- 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.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 56
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 10
- 239000010439 graphite Substances 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Images
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- Applications Or Details Of Rotary Compressors (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a floating combined sealing structure of a vehicle-mounted dry type screw compressor, and aims to solve the problems of relatively complicated structure, relatively large size and inconvenience in assembly of the sealing structure of the conventional like products. Floating sealing consists of a floating sealing ring, a spring sheet, a graphite friction ring and a sealing socket, wherein a ring handle is arranged on the circumferential face of the floating sealing ring; an annular sealing slot and a framework sealing slot are formed in the sealing seat; the ring handle is arranged in the annular sealing slot; a clearance is reserved between the ring handle and the surface of the annular sealing slot; the spring sheet is pressed against between one side of the ring handle and one end of the annular sealing slot; and the graphite friction ring is pressed against between the other side of the ring handle and the other end of the annular sealing slot. A labyrinth-type sealing slot is formed in the inner wall of the floating sealing ring; and a framework sealing ring is arranged in the framework sealing slot. The floating combined sealing has a simple structure, and is relatively good in sealing effect, relatively convenient to assemble and suitable for sealing structures of the vehicle-mounted dry type screw compressors.
Description
Technical field
The utility model relates to a kind of combination seal, is the unsteady combined sealing structure of a kind of vehicle-mounted dry type helical-lobe compressor.
Background technique
Vehicle-mounted dry type screw air compressor is mainly used in canned truck delivery cement, grain, cinder ash, breeze, industrial chemicals etc., as loading and unloading power.Be transported to powder in the storage jar from truck through pressurized air.Sealing configuration is the structure that in integral tank or air tight cabin, can prevent liquid or gas permeation, existing common have floating seal and labyrinth seal.Notice of authorization CN201771834U like Chinese patent document publication; March 23 2011 notice of authorization day; The model utility name is called " a kind of sealing configuration of pump drive assembly ", and it discloses the structure that floating-ring seal and labyrinth seal are used simultaneously, but structure is comparatively complicated; Volume is bigger, and comparatively inconvenience is installed.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of the utility model is to related domain a kind of vehicle-mounted dry type helical-lobe compressor combined sealing structure that floats to be provided, and makes it solve that existing like product sealing configuration is comparatively complicated, volume is big, the comparatively technical problem of inconvenience is installed.Its objective is and realize through following technological scheme.
The unsteady combined sealing structure of this vehicle-mounted dry type helical-lobe compressor comprises floating seal, labyrinth seal, outside framework oil seal; Its structure outline is that said floating seal is made up of fluctuate hermetical ring, spring sheet, graphite friction ring, sealing seat; The side face of said fluctuate hermetical ring is provided with handle; Be provided with annular seal groove, reinforced seal groove in the said sealing seat, said handle places in the said annular seal groove, and leaves the gap between handle and the ring packing groove face; Be provided with the spring sheet that pushes against between handle one side and annular seal groove one end, be provided with the graphite friction ring that pushes against between the handle opposite side and the annular seal groove the other end; Said labyrinth seal structure is arranged in the said fluctuate hermetical ring, and promptly the inwall of fluctuate hermetical ring is provided with the labyrinth sealing groove; Be provided with backbone sealing ring in the said reinforced seal groove.Said structure comes down to floating seal, labyrinth seal are designed to integral structure, saved install step by step loaded down with trivial details, and overall structure is comparatively simple, and sealing effect is better.
The utility model is simple in structure, adopts floating seal to combine with labyrinth seal, forms the double grading that existing labyrinth seal has floating-ring seal again; Sealing effect is better; It is comparatively convenient to install, and be suitable as vehicle-mounted dry type helical-lobe compressor sealing configuration and use, or the architecture advances of like product.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model, has done A portion among the figure and has confined.
Fig. 2 is the A portion structure for amplifying schematic representation of Fig. 1.
The name of sequence number is called among the figure: 1, pressurized air end, 2, housing, 3, the gear tank end, 4, bearing; 5, screw rod, 6, fluctuate hermetical ring, 601, handle, 602, the labyrinth sealing groove; 7, spring sheet, 8, the graphite friction ring, 9, sealing seat, 901, annular seal groove; 902, reinforced seal groove, 10, backbone sealing ring, 11, axle sleeve.
Embodiment
Combine accompanying drawing at present, the utility model is further described.Like Fig. 1, shown in Figure 2; The unsteady combined sealing structure of this dry type helical-lobe compressor comprises floating seal, labyrinth seal, outside framework oil seal; Floating seal is made up of fluctuate hermetical ring 6, spring sheet 7, graphite friction ring 8, sealing seat 9; The side face of fluctuate hermetical ring is provided with handle 601, is provided with annular seal groove 901 that cooperates with handle and the reinforced seal groove 902 that cooperates backbone sealing ring 10 in the sealing seat.Handle place behind the annular seal groove and the ring packing groove face between leave the gap, this gap is to be fit to the needs that fluctuate hermetical ring floats.Be provided with the spring sheet that pushes against between handle one side and annular seal groove one end, be provided with the graphite friction ring that pushes against between the handle opposite side and the annular seal groove the other end, fluctuate hermetical ring, graphite friction ring, sealing seat three are pushed against, realize sealing through spring sheet.The inwall of fluctuate hermetical ring is provided with labyrinth sealing groove 602, promptly forms labyrinth seal.Be provided with backbone sealing ring in the reinforced seal groove, form outside framework oil seal.
More than be the concrete structure of the utility model; In conjunction with said structure, the following description done in the installation of the utility model: as shown in Figure 1, be provided with bearing support and combination seal seat in the housing of this dry type helical-lobe compressor; Bearing 4 is set in the bearing support; Unsteady combined sealing structure is set in the combination seal seat, and the screw rod 5 of compressor is connecting bushing 11, bearing 4 successively, and fluctuate hermetical ring, reinforced seal ring and the axle sleeve of the combined sealing structure that floats are fitted.Through the pressurized air end 1 and gear tank end 3 sealings of this unsteady combined sealing structure, effectively stop the leakage of pressurized air and gear oil with the dry type helical-lobe compressor.
Claims (1)
1. the vehicle-mounted dry type helical-lobe compressor combined sealing structure that floats; The sealing structure comprises floating seal, labyrinth seal, outside framework oil seal; It is characterized in that said floating seal is made up of fluctuate hermetical ring (6), spring sheet (7), graphite friction ring (8), sealing seat (9); The side face of said fluctuate hermetical ring is provided with handle (601); Be provided with annular seal groove (901), reinforced seal groove (902) in the said sealing seat, said handle places in the said annular seal groove, and leaves the gap between handle and the ring packing groove face; Be provided with the spring sheet (7) that pushes against between handle one side and annular seal groove one end, be provided with the graphite friction ring (8) that pushes against between the handle opposite side and the annular seal groove the other end; Said labyrinth seal structure is arranged in the said fluctuate hermetical ring, and promptly the inwall of fluctuate hermetical ring is provided with labyrinth sealing groove (602); Be provided with backbone sealing ring (10) in the said reinforced seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201172497U CN202545253U (en) | 2012-03-26 | 2012-03-26 | Floating combined sealing structure of vehicle-mounted dry type screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201172497U CN202545253U (en) | 2012-03-26 | 2012-03-26 | Floating combined sealing structure of vehicle-mounted dry type screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545253U true CN202545253U (en) | 2012-11-21 |
Family
ID=47165896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201172497U Expired - Fee Related CN202545253U (en) | 2012-03-26 | 2012-03-26 | Floating combined sealing structure of vehicle-mounted dry type screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317680A (en) * | 2014-06-11 | 2016-02-10 | 上海汉钟精机股份有限公司 | Screw compressor exhaust end journal hole sealing mechanism |
| CN112664454A (en) * | 2021-01-04 | 2021-04-16 | 宁波市新炜流体科技有限公司 | Floating seal for oil-free dry type screw compressor and oil-free dry type screw compressor thereof |
-
2012
- 2012-03-26 CN CN2012201172497U patent/CN202545253U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317680A (en) * | 2014-06-11 | 2016-02-10 | 上海汉钟精机股份有限公司 | Screw compressor exhaust end journal hole sealing mechanism |
| CN112664454A (en) * | 2021-01-04 | 2021-04-16 | 宁波市新炜流体科技有限公司 | Floating seal for oil-free dry type screw compressor and oil-free dry type screw compressor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LUO YIHONG Free format text: FORMER OWNER: FENGHUA FUYONG MECHANICAL SEAL CO., LTD. Effective date: 20131209 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 315500 NINGBO, ZHEJIANG PROVINCE TO: 315599 NINGBO, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131209 Address after: 315599 Zhejiang Province, Fenghua city Jinping Street building 52 Room 606 sun tea Patentee after: Luo Yihong Address before: 315500, No. 1177 East Zhongshan Road, Ningbo, Zhejiang, Fenghua Patentee before: Fenghua Fuyong Seals Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20160326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |