CN204572486U - High sealing starts chamber device - Google Patents
High sealing starts chamber device Download PDFInfo
- Publication number
- CN204572486U CN204572486U CN201520254258.4U CN201520254258U CN204572486U CN 204572486 U CN204572486 U CN 204572486U CN 201520254258 U CN201520254258 U CN 201520254258U CN 204572486 U CN204572486 U CN 204572486U
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- CN
- China
- Prior art keywords
- boss
- card
- chamber
- high sealing
- groove
- 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 38
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 239000004519 grease Substances 0.000 abstract description 4
- 238000013475 authorization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000010200 validation analysis Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of high sealing startup chamber device to comprise motor shaft, be provided with the magnet ring injection moulded components, coupling, vibration isolation rubber, card, the card seal ring that start chamber, the end face of described magnet ring injection moulded components stretches out and is provided with a boss; The longitudinal section of described boss is trapezoidal; The inherent position corresponding with described boss of described card is provided with the groove matched with described boss; Described boss and described groove fit tightly after installing.This high sealing starts that chamber apparatus structure is simple, easy to assembly, good airproof performance and prevent grease from revealing; By boss can be embedded in the groove of card, and in interference fit, the interior inclined-plane of the inclined-plane of boss and groove is fitted tightly, like this then define the sealing on twice inclined-plane to starting chamber, increase the sealing reliability that rotor assembly starts chamber to a great extent, solve and start the unstable Leakage caused of chamber sealing.
Description
Technical field
The utility model relates to a kind of draining pump and starts cavity configuration, belongs to draining pump field.
Background technique
Micro-drainage pump is a kind of centrifugal pump with single-phase two pole permanent-magnet synchronous machines supporting for drainage system on fully automatic roll type washing machine.It is directly upper draining that this draining pump makes washing machine change draining under tradition traction valve, can overflow the bad phenomenon such as ground and blocking sewerage by effectively anti-sealing.But the noise produced when simultaneously bringing draining pump to operate, startup noise wherein during draining pump work is particularly outstanding, and start noise primarily of damping oil guarantee in rotor assembly startup cavity, therefore rotor assembly starts the chamber requirement higher to the sealing proposition of grease.
Existing rotor assembly startup cavity configuration such as the applicant's earlier patents (Authorization Notice No. CN2931869Y and CN201509169U) discloses a kind of starting drive of low impact force of minitype drainage motor, wherein starting drive coordinates with rotor injection molding body three road convex tendon the seal chamber formed by card three road groove, starts the unstable easy oil leakage of chamber sealability.Chinese patent (Authorization Notice No. CN204089645U) discloses a kind of high leak tightness starting drive of minitype drainage motor, wherein said bowl-type card is connected by ultrasonic welding mode with the housing of magnet ring injection moulded components, thus achieve firmly bonding, good airproof performance, but the program is not easy to maintenance, still there is Leakage simultaneously.
Therefore, the rotor startup cavity sealing device developing simple, easy to assembly, the good airproof performance of a kind of structure for micro-drainage pump is needed.
Model utility content
The technical problems to be solved in the utility model is, provides that a kind of structure is simple, easy to assembly, good airproof performance, the high sealing that prevents grease from revealing start chamber device.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: this high sealing starts chamber device and comprises motor shaft, is provided with the magnet ring injection moulded components, coupling, vibration isolation rubber, card, the card seal ring that start chamber, the end face of described magnet ring injection moulded components stretches out and is provided with a boss, the longitudinal section of described boss is trapezoidal; The inherent position corresponding with described boss of described card is provided with the groove matched with described boss; Described boss and described groove fit tightly after installing.Boss is arranged to boss, then many two inclined-planes, then can increase area of contact, thus make its sealability better; By boss is extended in card, and insert in the groove of card, magnet ring injection moulded components and card can be made to coordinate closer, simultaneously the inclined-plane of the inclined-plane that has of boss and groove fits tightly, achieve twice inclined-plane sealing in the startup chamber in magnet ring injection moulded components, thus the sealing achieved, solve and start the unstable Leakage caused of chamber sealing.
Further improvement is, is interference fit between described boss and described groove.Adopt technique scheme, during assembling, boss can be embedded in the groove of card, and in interference fit, namely there is the cooperation of interference (not comprising minimum interference to equal zero), the interior inclined-plane of the inclined-plane of boss and groove is fitted tightly, so then achieve sealing startup chamber being defined to twice inclined-plane better, further increase the sealing reliability that rotor assembly starts chamber, solve and start the unstable Leakage caused of chamber sealing.
Further improvement is, the height h of described boss is 0.5 ~ 1.5mm.The groove of interference fit has the height matched with boss with it, can realize the interference fit of boss and groove better, improve sealability further.
Further improvement is, the inclined-plane of described boss and the angle α of level are 10 ° ~ 20 °.The groove of interference fit has the angle matched with boss with it, can realize the interference fit of boss and groove better, improve sealability further.
As preferred version of the present utility model, the height h of described boss is 0.7mm.Mainly consider the particularity of its position, and consider the sealability to starting chamber, inventor spends creative work to sum up, and 0.7mm is the height of this boss is optimal height value, can realize the sealing to starting chamber better.
As preferred version of the present utility model, the inclined-plane of described boss and the angle α of level are 15 °.Mainly consider the particularity of its position, realized secondary inclined-plane by two inclined-planes of boss and groove and seal starting chamber, therefore by lot of experiment validation, the inclined-plane that the angle value of this optimum is formed, can realize the sealing to starting chamber best.
As preferred version of the present utility model, described card is bowl-type, and described vibration isolation rubber is cylindrical, and described card seal ring is O RunddichtringO.The card of bowl-type can coordinate with each component better; Columniform vibration isolation rubber compares other shape, and effectiveness in vibration suppression is better; O RunddichtringO can play good sealing.
High sealing of the present utility model starts chamber device and is used for micro-drainage pump.
The utility model beneficial effect is compared with prior art: this high sealing starts that chamber apparatus structure is simple, easy to assembly, good airproof performance and prevent grease from revealing; By boss can be embedded in the groove of card, and in interference fit, the interior inclined-plane of the inclined-plane of boss and groove is fitted tightly, like this then define the sealing on twice inclined-plane to starting chamber, increase the sealing reliability that rotor assembly starts chamber to a great extent, solve and start the unstable Leakage caused of chamber sealing.
Accompanying drawing explanation
Further describe below in conjunction with accompanying drawing and mode of execution of the present utility model:
Fig. 1 is the structural representation that the utility model high sealing starts chamber device;
Fig. 2 is the partial enlarged drawing that the boss at A place in Fig. 1 and groove assemble;
Wherein: 1-coupling; 2-vibration isolation rubber; 3-card seal ring; 4-magnet ring injection moulded components; 41-boss; 5-card; 51-groove; 6-motor shaft; 7-starts chamber.
Embodiment
Embodiment one: as shown in Figure 1-2, and this high sealing starts chamber device and comprises motor shaft 6, is provided with the magnet ring injection moulded components 4 starting chamber 7, coupling 1, vibration isolation rubber 2, card 5, card seal ring 3, the end face of magnet ring injection moulded components 4 stretches out and is provided with a boss 41, and the longitudinal section of boss 41 is trapezoidal; The inherent position corresponding with boss 41 of card 5 is provided with the groove 51 matched with boss 41; Boss 41 and groove 51 fit tightly after installing; It is interference fit between boss 41 and groove 51; The height h of boss 41 is 0.7mm; The inclined-plane of boss 41 and the angle α of level are 15 °; Card 5 is bowl-type, and vibration isolation rubber 2 is cylindrical; Card seal ring 3 is O RunddichtringO; This high sealing starts chamber device and is used for micro-drainage pump.
During assembling, boss 41 can be embedded in the groove 51 of card 5, and in interference fit, the interior inclined-plane of the inclined-plane of boss 41 and groove 51 be fitted tightly.
Above-described specific embodiment, further describes the purpose of this utility model, technological scheme and beneficial effect, and institute it should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to the utility model; All within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a high sealing starts chamber device, comprise motor shaft, be provided with the magnet ring injection moulded components, coupling, vibration isolation rubber, card, the card seal ring that start chamber, it is characterized in that, the end face of described magnet ring injection moulded components stretches out is provided with a boss, and the longitudinal section of described boss is trapezoidal; The inherent position corresponding with described boss of described card is provided with the groove matched with described boss; Described boss and described groove fit tightly after installing.
2. high sealing according to claim 1 starts chamber device, and it is characterized in that, be interference fit between described boss and described groove.
3. high sealing according to claim 1 and 2 starts chamber device, and it is characterized in that, the height h of described boss is 0.5 ~ 1.5mm.
4. high sealing according to claim 3 starts chamber device, and it is characterized in that, the inclined-plane of described boss and the angle α of level are 10 ° ~ 20 °.
5. high sealing according to claim 4 starts chamber device, and it is characterized in that, the height h of described boss is 0.7mm.
6. high sealing according to claim 5 starts chamber device, and it is characterized in that, the inclined-plane of described boss and the angle α of level are 15 °.
7. high sealing according to claim 6 starts chamber device, and it is characterized in that, described card is bowl-type, and described vibration isolation rubber is cylindrical, and described card seal ring is O RunddichtringO.
8. high sealing according to claim 7 starts chamber device, it is characterized in that, this high sealing starts chamber device and is used for micro-drainage pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520254258.4U CN204572486U (en) | 2015-04-24 | 2015-04-24 | High sealing starts chamber device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520254258.4U CN204572486U (en) | 2015-04-24 | 2015-04-24 | High sealing starts chamber device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572486U true CN204572486U (en) | 2015-08-19 |
Family
ID=53865130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520254258.4U Expired - Fee Related CN204572486U (en) | 2015-04-24 | 2015-04-24 | High sealing starts chamber device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572486U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917719A (en) * | 2017-09-30 | 2018-04-17 | 博罗县宏宇创新电子有限公司 | A kind of encoder with sealing structure |
-
2015
- 2015-04-24 CN CN201520254258.4U patent/CN204572486U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917719A (en) * | 2017-09-30 | 2018-04-17 | 博罗县宏宇创新电子有限公司 | A kind of encoder with sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |