CN207246091U - water pump mechanical seal structure - Google Patents
water pump mechanical seal structure Download PDFInfo
- Publication number
- CN207246091U CN207246091U CN201721315516.0U CN201721315516U CN207246091U CN 207246091 U CN207246091 U CN 207246091U CN 201721315516 U CN201721315516 U CN 201721315516U CN 207246091 U CN207246091 U CN 207246091U
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- Prior art keywords
- mechanical seal
- connected body
- gland
- chamber
- water
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Abstract
A kind of water pump mechanical seal structure, including the pump housing and connected body of the cooperation at pump housing back, form water supply chamber, impeller are set in water chamber room, output shaft extend into water chamber room on the outside of connected body and connects impeller between the pump housing and connected body, it is characterised in that：Evagination sets and forms a groove in inner side in the middle part of the connected body, groove mouth is covered with a gland, gland sealing coordinates makes groove form a sealed chamber on connected body, output shaft passes through sealed chamber, and the mechanical seal on output shaft is arranged in sealed chamber, and lubricating oil is inoculated with sealed chamber.The utility model provides a kind of water pump mechanical seal structure, increases a gland structure so that mechanical seal is infiltrated in the oil-in chamber of sealing, and the medium of water pump conveying is no longer limited to clear water, and the medium containing particulate matter or impurity can equally be conveyed.
Description
Technical field
The utility model belongs to centrifugal water pump technical field, refers in particular to a kind of water pump mechanical seal structure.
Background technology
As shown in Figure 3, the structure of existing centrifugal pump substantially said structure, by impeller and connected body to mechanical seal
Positioned.Meanwhile mechanical seal infiltration is in the environment of water pump institute pumped (conveying) medium.Because the particularity of mechanical seal structure
(part-structure material is rubber), when containing particle or impurity in medium, easily causes the rubber part of mechanical seal
Scratch is cut, so as to cause leakage from water pump；So the medium of general centrifugal pump is usually required as clear water or similar clear
The medium of water.
Utility model content
The purpose of this utility model is to provide a kind of water pump mechanical seal structure, increases a gland structure so that machinery
Sealing infiltration is in the oil-in chamber of sealing, and the medium of water pump conveying is no longer limited to clear water, Jie containing particulate matter or impurity
Matter can equally be conveyed.
What the purpose of this utility model was realized in：A kind of water pump mechanical seal structure, including the pump housing and cooperation are pumping
The connected body at body back, forms water supply chamber between the pump housing and connected body, setting impeller in water chamber room, and output shaft is from connected body
Outside extend into water chamber room and connects impeller, it is characterised in that：Evagination sets and is formed in inner side in the middle part of the connected body
One groove, groove mouth are covered with a gland, and gland sealing coordinates makes groove form a sealed chamber, output shaft on connected body
Through sealed chamber, and the mechanical seal on output shaft is arranged in sealed chamber, and lubricating oil is inoculated with sealed chamber.
Preferably, opposite impeller side is equipped with caulking groove in the middle part of the gland, sets outside framework oil seal in caulking groove, outside framework oil seal is arranged
On output shaft.
Preferably, it is bolted between the gland and connector, and O-ring is set between counterface.
Preferably, the gland is equipped with the locating flange of annular with respect to impeller side, and locating flange is centered around impeller back
Annulus periphery.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that：
The utility model passes through the change to structure so that centrifugal pump no longer limits the granule content with medium, passes through
The structure of connected body is changed, is increased by one " gland ", with one " outside framework oil seal " and " O-ring ", makes " gland " and " connection
Junctor " carries out sealing cooperation, and intracavitary pours into oil, mechanical seal is passed through oil to lubricate.In this way, the medium no longer office of water pump conveying
It is limited to clear water, the medium containing particulate matter or impurity can equally be conveyed.
Brief description of the drawings
Fig. 1 is the overall structure figure of the utility model；
Fig. 2 is the partial enlarged view of the utility model；
Fig. 3 is the structure chart of existing centrifugal pump.
Reference numeral：1st, motor；2nd, the pump housing；3rd, connected body；4th, impeller；5th, gland；5a, locating flange；6th, mechanical seal；
7th, output shaft；8th, outside framework oil seal；9th, bolt；10th, O-ring；11st, sealed chamber.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1-2：
A kind of 6 structure of water pump mechanical seal, including the pump housing 2 and connected body 3 of the cooperation at 2 back of the pump housing, the pump housing 2 and connection
Water supply chamber is formed between body 3, impeller 4 is set in water chamber room, the output shaft 7 of motor 1 extend into water supply from the outside of connected body 3
In chamber and impeller 4 is connected, the 3 middle part evagination of connected body sets and forms a groove in inner side, and groove mouth is covered with one
Gland 5,5 outer of gland set mounting hole, and fitted bolt 9 in mounting hole, is fixed gland 5 and connected body 3 by bolt 9,
Gland 5 ensures sealing with setting O-ring 10 in the mating surface of connected body 3 so that groove forms the chamber of a sealing；Wherein,
Output shaft 7 passes through sealed chamber 11, and the mechanical seal 6 on output shaft 7 is arranged in sealed chamber 11, gland 5 and groove
Bottom is oppositely arranged annular protrusion with spacing mechanical seal 6 respectively, be inoculated with sealed chamber 11 lubricating oil with to mechanical seal 6 into
Row lubrication.
Specifically see Fig. 2, caulking groove is set in 5 outer middle side part of gland, outside framework oil seal 8 is arranged on output shaft 7 and outside framework oil seal 8 is put
In in caulking groove；Gland 5 is equipped with the locating flange 5a of annular with respect to 4 side of impeller, and locating flange 5a is centered around the annulus at 4 back of impeller
Periphery.Which has been transferred on gland 5 equivalent to the structure for positioning original connected body 3 to impeller 4, reduces connected body 3
The complexity of structure, more conducively produces.
Above-described embodiment is only the preferred embodiment of the utility model, not limits the protection model of the utility model according to this
Enclose, therefore：The equivalence changes that all structures, shape, principle according to the utility model are done, should all be covered by the protection of the utility model
Within the scope of.
Claims (4)
1. a kind of water pump mechanical seal (6) structure, including the pump housing (2) and cooperation are in the connected body (3) at the pump housing (2) back, the pump housing
(2) water supply chamber is formed between connected body (3), impeller (4) is set in water chamber room, and output shaft (7) is on the outside of connected body (3)
It extend into water chamber room and connects impeller (4), it is characterised in that：Evagination is set and in inner side shape in the middle part of the connected body (3)
Into a groove, groove mouth is covered with a gland (5), and gland (5) sealing coordinates makes groove form a sealing on connected body (3)
Chamber (11), output shaft (7) passes through sealed chamber (11), and the mechanical seal (6) on output shaft (7) is arranged on sealed chamber
(11) in, lubricating oil is inoculated with sealed chamber (11).
2. water pump mechanical seal (6) structure according to claim 1, it is characterised in that：Opposite leaf in the middle part of the gland (5)
Wheel (4) side is equipped with caulking groove, sets outside framework oil seal (8) in caulking groove, outside framework oil seal (8) is set on output shaft (7).
3. water pump mechanical seal (6) structure according to claim 1, it is characterised in that：The gland (5) and connector it
Between it is fixed by bolt (9), and O-ring (10) is set between counterface.
4. water pump mechanical seal (6) structure according to claim 3, it is characterised in that：The gland (5) is with respect to impeller
(4) side is equipped with the locating flange (5a) of annular, and locating flange (5a) is centered around the annulus periphery at impeller (4) back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315516.0U CN207246091U (en) | 2017-10-12 | 2017-10-12 | water pump mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721315516.0U CN207246091U (en) | 2017-10-12 | 2017-10-12 | water pump mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246091U true CN207246091U (en) | 2018-04-17 |
Family
ID=61891168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721315516.0U Active CN207246091U (en) | 2017-10-12 | 2017-10-12 | water pump mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886707A (en) * | 2018-09-10 | 2020-03-17 | 丰田自动车株式会社 | Compressor with a compressor housing having a plurality of compressor blades |
-
2017
- 2017-10-12 CN CN201721315516.0U patent/CN207246091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886707A (en) * | 2018-09-10 | 2020-03-17 | 丰田自动车株式会社 | Compressor with a compressor housing having a plurality of compressor blades |
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