CN109236720B - Sealing assembly device is prevented leaking by pump shaft department - Google Patents
Sealing assembly device is prevented leaking by pump shaft department Download PDFInfo
- Publication number
- CN109236720B CN109236720B CN201811287079.5A CN201811287079A CN109236720B CN 109236720 B CN109236720 B CN 109236720B CN 201811287079 A CN201811287079 A CN 201811287079A CN 109236720 B CN109236720 B CN 109236720B
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- CN
- China
- Prior art keywords
- pump shaft
- hole
- pump
- oil
- impeller
- 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.)
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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 230000002265 prevention Effects 0.000 claims 2
- 239000007788 liquid Substances 0.000 abstract description 8
- 238000005461 lubrication Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/043—Shafts
-
- 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
- F04D29/007—Details, component parts, or accessories especially adapted for liquid pumps
-
- 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- 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
- F04D29/06—Lubrication
- F04D29/061—Lubrication especially adapted for liquid pumps
-
- 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
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 leak-proof sealing assembly device at a pump shaft, which comprises a pump shell, wherein the front side of the pump shell is matched and connected with a front shell through a rubber gasket, an impeller is arranged in a cavity of the front shell, the head of the impeller is provided with a spring, the impeller is fixedly connected to the front end of the pump shaft, a second disc bearing and a sealing washer are also sequentially arranged between the rear side of the impeller and the large end of a frustum of the pump shaft, an oil film is arranged between the surface of the frustum of the pump shaft and a conical hole, the rear side of the conical hole is provided with a through hole, the rear end of the through hole is connected with a flange, the through hole is sequentially connected with the pump shaft through a bearing and an oil seal, and the flange is clamped and connected with a rear cover through a bolt; the frustum arranged on the pump shaft is matched with the taper hole in front of the pump shell and is provided with oil film lubrication and a gasket on the front side for preventing leakage, the oil seal on the rear side forms two sealing components to effectively solve the problem of leakage of liquid in the pump cavity, the spring force arranged on the front side of the impeller acts on the pump shaft to achieve good sealing performance, and the service life of the pump can be effectively prolonged through the structure.
Description
Technical Field
The invention relates to the technical field of fluid pumps, in particular to a leak-proof sealing assembly device at a pump shaft.
Background
A pump is a machine that delivers or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspension emulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solid. Pumps can be generally classified by their operating principle into three types, positive displacement pumps, dynamic pumps and other types of pumps.
No matter what kind of function or type of pump, its use is used for conveying the fluid, in the present pump valve trade, because the pump runs for a long time, the fluid in its cavity is apt to produce the seepage along pump shaft, this seepage difficult problem is difficult to maintain, also often puzzles with pump enterprises and pump merchants; the invention is disclosed specifically to solve the problem.
Disclosure of Invention
The invention aims to solve the existing problems and provides a leakage-proof sealing assembly device at a pump shaft.
The invention is realized by the following technical scheme: a leak-proof sealing assembly device at a pump shaft comprises a pump shell, wherein the front side of the pump shell is matched and connected with a front shell through a rubber gasket, and is connected by a bolt, an impeller is arranged in a cavity formed between the pump shell and the front shell, the head part of the impeller is sleeved with one end of a spring, the other end of the spring is clamped and connected with an end platform arranged at the rear side of a first disc bearing, the front side of the first disc bearing is sleeved in a groove in the middle of a grid mesh, the grid mesh is connected with the inner wall of the front shell, the impeller is fixedly connected with the front end of the pump shaft, and a second disc bearing and a sealing washer are sequentially arranged between the rear side of the impeller and the large end of the frustum of the pump shaft, a barrel body of the sealing washer is sleeved at the large end of the frustum of the pump shaft, a curved edge of the sealing washer is in contact with the edge of a taper hole at the front end of a pump shell, an oil film is arranged between the surface of the frustum of the pump shaft and the taper hole, a through hole is formed in the rear side of the taper hole, the rear end of the through hole is connected with a flange, the through hole is sequentially connected with the pump shaft through the bearing and an oil seal, and the flange is clamped with a rear cover and is connected through a bolt.
As a further improvement to the scheme, the oil film is arranged on the surface of a frustum of the pump shaft, a through long oil groove is arranged along the generatrix direction of the oil film, annular oil grooves are arranged on the through long oil groove on the surface of the frustum at intervals, a through oil hole is formed in the side wall of a taper hole in contact with the through long oil groove, and an oil nozzle is connected to a pump shell at the top of the oil hole.
As a further improvement of the scheme, the grid mesh consists of an outer ring, ribs and an inner plate, wherein one ends of the ribs are uniformly and radially distributed and connected on the inner side of the outer ring, the other ends of the ribs are connected with the outer edge of the inner plate, a groove is formed in one plane of the inner plate, and a plurality of through holes are uniformly distributed and formed in the outer ring.
As a further improvement to the above scheme, the right end face of the flange is provided with a circular groove, and screw holes are uniformly distributed on the outer side of the circular groove.
As a further improvement to the scheme, the left side surface of the rear cover is integrally provided with an annular boss matched with the annular groove on the right end surface of the flange, the outer side of the annular boss is provided with a through hole concentric with a screw hole on the outer side of the annular groove, and the inner side of the annular boss is provided with a circular truncated cone which is clamped and matched with a right end opening of the shaft hole of the pump shell.
As a further improvement to the scheme, a sealing ring is arranged on the hole wall of the oil seal, which is used for being connected with the pump shaft in a penetrating mode.
As the further improvement to above-mentioned scheme, be equipped with the hole that is used for cup jointing the pump shaft front end in the middle of seal ring's the packing ring body, be equipped with the muscle ring on the downthehole wall, the hole top is equipped with the boss, the upside edge of packing ring body is equipped with curved edge, and its downside edge sets up the barrel that matches with the frustum main aspects, is equipped with the barb on the barrel inner wall.
Compared with the prior art, the invention has the following advantages: the cone table arranged on the pump shaft is matched with the cone hole in front of the pump shell and is lubricated by an oil film, the gasket on the front side prevents leakage, and then two sealing components are formed by the oil seal on the rear side, so that the leakage problem of liquid in the pump cavity can be effectively solved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of a sealing structure at a pump shaft in fig. 1.
Fig. 3 is a schematic structural diagram of a grid.
Fig. 4 is a structural diagram of a sealing gasket.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, a leak-proof sealing assembly device at a pump shaft comprises a pump casing 1, the front side of the pump casing 1 is connected with a front casing 2 through a rubber gasket and connected through a bolt, an impeller 3 is arranged in a cavity formed between the pump casing 1 and the front casing 2, the head of the impeller 3 is sleeved with one end of a sleeve spring 7, the other end of the spring 7 is clamped with an end platform 6 arranged at the rear side of a first disc bearing 5, the front side of the first disc bearing 5 is sleeved in a groove 44 in the middle of a grid 4, the grid 4 is connected with the inner wall of the front casing 2, the impeller 3 is fixedly connected with the front end of the pump shaft 22, a second disc bearing 8 and a sealing washer 9 are sequentially arranged between the rear side of the impeller 3 and the large end of a frustum of the pump shaft 22, a cylinder 95 of the sealing washer 9 is sleeved at the large end of the frustum of the pump shaft 22, a curved edge 91 of the sealing washer 9 is contacted with the edge of the cone hole at the front end of the pump casing 1, an oil film is arranged between the surface of the frustum of the pump shaft 22 and the cone hole, the rear side of the taper hole is provided with a through hole, the rear end of the through hole is connected with a flange 20, the through hole is connected with a pump shaft 22 sequentially through a bearing 14 and an oil seal 15, and the flange 20 is clamped with a rear cover 17 and connected through bolts.
As a further improvement of the scheme, the oil film is arranged on the surface of a frustum of the pump shaft 22, the through long oil groove 10 is arranged along the generatrix direction of the oil film, annular oil grooves 11 are arranged on the through long oil groove 10 on the surface of the frustum at intervals, a through oil hole 12 is arranged on the side wall of a taper hole in contact with the through long oil groove 10, and an oil nozzle 13 is connected to the pump shell 1 at the top of the oil hole 12.
As a further improvement of the above scheme, the grid 4 is composed of an outer ring 41, ribs 42 and an inner plate 43, one end of each rib 42 is radially and uniformly connected to the inner side of the outer ring 41, the other end of each rib 42 is connected to the outer edge of the inner plate 43, a groove 44 is arranged on one plane of the inner plate 43, and a plurality of through holes 45 are uniformly distributed on the outer ring 41.
As a further improvement to the scheme, the right end face of the flange 20 is provided with a ring groove 18, and screw holes are uniformly distributed on the outer side of the ring groove 18 and are circumferentially arranged.
As a further improvement of the scheme, an annular boss 19 matched with the annular groove 18 on the right end face of the flange 20 is integrally arranged on the left side face of the rear cover 17, a through hole concentric with a screw hole on the outer side of the annular groove 18 is formed in the outer side of the annular boss 19, a circular table 21 is arranged on the inner side of the annular boss 19, and the circular table 21 is clamped at the rear end opening of the shaft hole of the pump shell 1.
As a further improvement to the above solution, a sealing ring 16 is arranged on a hole wall of the oil seal 15 for passing through the pump shaft 22.
As a further improvement to the above scheme, a hole 93 for sleeving the front end of the pump shaft is formed in the middle of the gasket body of the sealing gasket 9, a rib ring 94 is arranged on the inner wall of the hole 93, a boss 92 is arranged at the top of the hole 92, a curved edge 91 is arranged at the upper side edge of the gasket body, a barrel 95 matched with the large end of the frustum is arranged at the lower side edge of the gasket body, and a barb 96 is arranged on the inner wall of the barrel.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (7)
1. A leak-proof sealing assembly device at the position of a pump shaft comprises a pump shell and is characterized in that the front side of the pump shell is matched and connected with a front shell through a rubber gasket and is connected with the front shell through a bolt, an impeller is arranged in a cavity formed between the pump shell and the front shell, one end of a spring is sleeved at the head of the impeller, the other end of the spring is clamped and connected with an end platform arranged at the rear side of a first disc bearing, the front side of the first disc bearing is sleeved and sleeved in a groove in the middle of a grid mesh, the grid mesh is connected with the inner wall of the front shell, the impeller is fixedly connected with the front end of the pump shaft, a second disc bearing and a sealing washer are sequentially arranged between the rear side of the impeller and the large end of a frustum of the pump shaft, a barrel body of the sealing washer is sleeved and arranged at the large end of the frustum of the pump shaft, a curved edge of the sealing washer is contacted with the edge of a conical hole at the front end of the pump shaft, an oil film is arranged between the surface of the conical platform of the pump shaft and the conical hole, a through hole is provided with a through hole, the rear end of the through hole is connected with a flange, the pump shaft sequentially through bearing and an oil seal, the flange is clamped with the rear cover and is connected with the rear cover through a bolt.
2. A leakage-proof sealing assembly device at a pump shaft according to claim 1, wherein the oil film is disposed on a frustum surface of the pump shaft, and is provided with a through oil groove along a generatrix direction thereof, annular oil grooves are disposed at intervals on the through oil groove on the frustum surface, a through oil hole is disposed on a side wall of the taper hole contacting with the through oil groove, and a nozzle is connected to a pump casing at a top of the oil hole.
3. A pump shaft leakage prevention sealing assembly device according to claim 1, wherein the grid mesh is composed of an outer ring, ribs and an inner plate, one end of each rib is radially and uniformly connected to the inner side of the outer ring, the other end of each rib is connected to the outer edge of the inner plate, a groove is formed in a plane of the inner plate, and a plurality of through holes are uniformly formed in the outer ring.
4. A pump shaft leakage-proof sealing assembly device according to claim 1, wherein a ring groove is provided on a right end face of the flange, and screw holes are uniformly distributed on the outer side of the ring groove and on the circumference.
5. The device of claim 1, wherein an annular boss is integrally formed on the left side of the rear cover and fits the right end of the flange, a through hole is formed on the outer side of the annular boss, and a circular truncated cone is formed on the inner side of the annular boss and fits the right port of the shaft hole of the pump casing.
6. A seal assembly apparatus against leakage from pump shaft as claimed in claim 1, wherein said oil seal has a seal ring on the wall of the bore through which the pump shaft passes.
7. A pump shaft leakage prevention seal assembly device according to claim 1, wherein a hole for sleeving the front end of the pump shaft is formed in the middle of the gasket body of the seal gasket, a rib ring is arranged on the inner wall of the hole, a boss is arranged at the top of the hole, a curved edge is arranged on the upper side edge of the gasket body, a barrel body matched with the large end of the frustum is arranged on the lower side edge of the gasket body, and barbs are arranged on the inner wall of the barrel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287079.5A CN109236720B (en) | 2018-10-31 | 2018-10-31 | Sealing assembly device is prevented leaking by pump shaft department |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811287079.5A CN109236720B (en) | 2018-10-31 | 2018-10-31 | Sealing assembly device is prevented leaking by pump shaft department |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109236720A CN109236720A (en) | 2019-01-18 |
| CN109236720B true CN109236720B (en) | 2022-07-26 |
Family
ID=65079959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811287079.5A Active CN109236720B (en) | 2018-10-31 | 2018-10-31 | Sealing assembly device is prevented leaking by pump shaft department |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109236720B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109488635B (en) * | 2018-10-31 | 2024-05-17 | 安徽腾龙泵阀制造有限公司 | Mechanical sealing device for pump body leakage prevention |
| CN109236725B (en) * | 2018-10-31 | 2024-05-17 | 安徽腾龙泵阀制造有限公司 | Sealing device for pump body leakage prevention |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6685428B1 (en) * | 2000-10-04 | 2004-02-03 | Freudenberg-Nok General Partnership | Integrated boot, seal and impeller system |
| CN200952488Y (en) * | 2006-04-05 | 2007-09-26 | 丛铭 | Single-stage horizontal automatic balancing centrifugal sealing pump |
| DE102011017339A1 (en) * | 2011-04-16 | 2012-10-18 | Volkswagen Aktiengesellschaft | Centrifugal pump has sealing gap formed between impeller and housing, which forms portions of housing and impeller that are urged by resilient spring in direction of sealing gap, and stopper that prevents contact of portions |
| CN204357713U (en) * | 2014-12-27 | 2015-05-27 | 烟台龙港耐腐蚀泵有限公司 | A kind of process pump for petrochemical industry |
| CN104747491A (en) * | 2014-07-10 | 2015-07-01 | 季永东 | Sanitary pump provided with sealing assembly |
| CN204900319U (en) * | 2015-07-14 | 2015-12-23 | 广东肯富来泵业股份有限公司 | Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing |
| CN105899813A (en) * | 2014-01-08 | 2016-08-24 | 爱信精机株式会社 | Water pump |
-
2018
- 2018-10-31 CN CN201811287079.5A patent/CN109236720B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6685428B1 (en) * | 2000-10-04 | 2004-02-03 | Freudenberg-Nok General Partnership | Integrated boot, seal and impeller system |
| CN200952488Y (en) * | 2006-04-05 | 2007-09-26 | 丛铭 | Single-stage horizontal automatic balancing centrifugal sealing pump |
| DE102011017339A1 (en) * | 2011-04-16 | 2012-10-18 | Volkswagen Aktiengesellschaft | Centrifugal pump has sealing gap formed between impeller and housing, which forms portions of housing and impeller that are urged by resilient spring in direction of sealing gap, and stopper that prevents contact of portions |
| CN105899813A (en) * | 2014-01-08 | 2016-08-24 | 爱信精机株式会社 | Water pump |
| CN104747491A (en) * | 2014-07-10 | 2015-07-01 | 季永东 | Sanitary pump provided with sealing assembly |
| CN204357713U (en) * | 2014-12-27 | 2015-05-27 | 烟台龙港耐腐蚀泵有限公司 | A kind of process pump for petrochemical industry |
| CN204900319U (en) * | 2015-07-14 | 2015-12-23 | 广东肯富来泵业股份有限公司 | Utilize seal spring to reduce impeller pump of bearing seal wearing and tearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109236720A (en) | 2019-01-18 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A leak proof sealing component device at the pump shaft Effective date of registration: 20230620 Granted publication date: 20220726 Pledgee: Huishang Bank Co.,Ltd. Jingxian Branch Pledgor: ANHUI TENGLONG PUMP AND VALVE MANUFACTURING CO.,LTD. Registration number: Y2023980044872 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20220726 Pledgee: Huishang Bank Co.,Ltd. Jingxian Branch Pledgor: ANHUI TENGLONG PUMP AND VALVE MANUFACTURING CO.,LTD. Registration number: Y2023980044872 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |