CN201318339Y - Centrifugal draining pump - Google Patents
Centrifugal draining pump Download PDFInfo
- Publication number
- CN201318339Y CN201318339Y CNU2008201831657U CN200820183165U CN201318339Y CN 201318339 Y CN201318339 Y CN 201318339Y CN U2008201831657 U CNU2008201831657 U CN U2008201831657U CN 200820183165 U CN200820183165 U CN 200820183165U CN 201318339 Y CN201318339 Y CN 201318339Y
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- Prior art keywords
- muscle
- impeller
- axle sleeve
- groove
- draining pump
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- Expired - Lifetime
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Abstract
The utility model discloses a centrifugal draining pump, which comprises a pump body and a pump cover, an impeller 1 rotatably arranged in the pump cover, a limitation rib 19 provided with a holding cavity 17 and extending to the inner wall of the holding cavity, a shaft sleeve 3 arranged in the holding cavity and used for driving the impeller to rotate, and a starting rib 18 which is provided with a shaft sleeve body 20 and a log boss 21 and extrudes from the shaft sleeve body to the outside; at least one of the two side surfaces at the radical direction of the starting rib is provided with a shaft sleeve shock pad 5; the surface of the shaft sleeve shock pad used for contacting the limitation rib is provided with a salient point 51; at least one of the side surfaces of the limitation rib is stuck with an impeller shock pad 2; the surface of the impeller shock pad to be contacted with the starting rib is provided with a salient point 31. The centrifugal draining pump can be started without load, avoids the problem of large starting load of motor, is not only easy to be mounted and replaced through the stable sticking of the shock pad of the starting rib or the limitation rib as well as setting the salient point on the shock pad of the starting rib and/or the limitation rib, but also greatly reduces oscillation and noise.
Description
Technical field
The utility model relates to a kind of centrifugal draining pump, in particular for the centrifugal draining pump of household electric appliance.
Background technique
U.S. Pat 2005/0111992 discloses the centrifugal draining pump that a kind of household electric appliance use.Disclosed draining pump in this patent, the problem of burning motor greatly and easily of loading during at starting mode of pump designs, and it mainly improves the connection of the startup between axle sleeve and the impeller.This patent is provided with the startup muscle at axle sleeve, outwards be provided with a spacing muscle in the inside of impeller, and all wrapped up the elastomeric objects that one deck plays damping function in end-fire two sides that start muscle and spacing muscle, between the two layers of elastomer of two sides, connect and holding part by extend through the middle of axle sleeve to small part, by on the whole with a kind of firm mode vertically with sense of rotation be fixed on axle sleeve, during startup, lower the noise that produces because of axle sleeve rotation impeller and absorb by its vibrations that cause by this elastomer.But this design more complicated causes cost of production and maintenance cost higher.
For this reason, the inventor improves said structure.A kind of centrifugal draining pump is disclosed among the inventor's the Chinese utility model patent CN201034089 (the utility model reference and cross reference content wherein).It comprises the pump housing, p-m rotor, rotor shaft, pump cover, axle sleeve, impeller, and there is the receiving cavity of a ccontaining axle sleeve in impeller central authorities, and axle sleeve has a tubular body, and sidewall has one to start muscle; Impeller receiving cavity inwall projection one spacing muscle starts muscle and spacing muscle and interferes; Interfere in surface of contact with each group of spacing muscle starting muscle, every group has at least on the interference surface of contact along axially having a groove, and the opening end of groove is narrower than its inner cell body; Other has beam, and the one side of its applying has a fin, and fin and groove fit are inlaid in the groove and with spacing muscle or start muscle and form and fit tightly by this fin.This draining pump can No Load Start, has avoided the big problem of electric motor starting load; The beam that starts muscle or spacing muscle is firmly fitted, and installs easily and change.But disclosed damping structure or shock-damping structure are that direct face contact owing to start between the beam of installing on the beam installed on the muscle and the spacing muscle when starting in this patent, so still can produce and vibrate and noise.
Summary of the invention
The utility model is at the noise and the vibration of above-mentioned the deficiencies in the prior art and further reduction draining pump generation when starting, a kind of centrifugal draining pump is provided, this centrifugal draining pump comprises the pump housing and pump cover, also comprise: impeller, rotatably be placed in the pump cover the spacing muscle that has receiving cavity and extend internally by the receiving cavity inwall by rotor shaft; Axle sleeve is placed in and is used for impeller rotation in the receiving cavity, the startup muscle that has axle sleeve main body, boss and outwards protruded by the axle sleeve main body, wherein, in the radially bi-side that start muscle one of at least,, be fitted with the axle sleeve beam, the surface that being used to of axle sleeve beam contacts spacing muscle is provided with salient point.
Particularly, the radially bi-side of startup muscle all are fitted with the axle sleeve beam.
In addition, in the radially bi-side of described spacing muscle one of at least, be fitted with the impeller beam, the surface that is used for the contact start muscle of described impeller beam is provided with salient point.Particularly, the radially bi-side of spacing muscle all are fitted with the impeller beam.Wherein, the described side of spacing muscle is along axially having a groove, and the opening end of groove is narrower than its inner cell body, and the surface of impeller beam has fin, forms with spacing muscle by its fin is embedded in groove to fit tightly.
Particularly, start between muscle and the axle sleeve main body and form groove, start muscle and radially be fitted with the axle sleeve beam separately in bi-side, connect by the holding part of passing groove between the two axle sleeve beams.
Particularly, the side that starts muscle is offered groove vertically, and the opening end of groove is narrower than its inner cell body, and axle sleeve beam surface has fin, by its fin is embedded axle sleeve beam and the formation of startup muscle is fitted.
The top of impeller is provided with a rotor shaft receiving cavity that holds rotor shaft, axle sleeve by the impeller pad by shutoff in the receiving cavity of impeller.
The present invention provides a kind of centrifugal draining pump on the other hand, comprises that the pump housing and pump cover also comprise: impeller, the spacing muscle that has receiving cavity and extended internally by the receiving cavity inwall; The axle sleeve that is used for the impeller rotation, be installed on the rotor shaft and be sleeved in the receiving cavity, the startup muscle that has axle sleeve main body, boss and outwards protrude by the axle sleeve main body, wherein, radially bi-side at spacing muscle, be provided with the impeller beam with its applying, the surface that is used for the contact start muscle of impeller beam is provided with salient point.
Particularly, the bi-side of spacing muscle are along axially having groove, and the opening end that extends vertically of groove is narrower than its inner cell body, and impeller beam surface has fin, form with spacing muscle by its fin is embedded in groove and fit.
Centrifugal draining pump described in the utility model has the following advantages:
(1) water pump can No Load Start, has avoided the big problem of electric motor starting load;
(2) beam that starts muscle, spacing muscle forms firm applying, and installs easily and change by the cooperation of inlaying of narrow cell body of opening and fin.
(3) on the beam of startup muscle, spacing muscle salient point is set, collide by salient point between the beam during startup, therefore the collision between the plane of prior art is changed between points or point and plane between collision, avoided direct collision between the beam, delay time of collision, further reduced the noise of draining pump.
Description of drawings
Fig. 1 is centrifugal draining pump first embodiment's of the utility model a structural representation;
Fig. 2 is the D-D sectional view of Fig. 1;
Fig. 3 is the decomposition view of impeller shown in Figure 1 and axle sleeve;
Fig. 4 is the ssembly drawing of axle sleeve shown in Figure 3, beam;
Fig. 5 is centrifugal draining pump second embodiment's of the utility model the impeller and the decomposition view of axle sleeve.
Description of reference numerals: 1, impeller; 2a, 2b impeller beam; 3, axle sleeve; 4, rotor shaft; 5a, 5b, axle sleeve beam; 5c, holding part; 6, impeller pad; 7, plastic bearing lid; 8, rubber bush bearing lid; 9, p-m rotor; 10, seal ring; 11, the pump housing; 12, bearing; 13, bearing support; 14, coil; 15, stator; 16, pump cover; 17, axle sleeve receiving cavity; 18, start muscle; 19, spacing muscle; 20, axle sleeve main body; 21, boss; 22, penetration hole; 23, start the muscle groove; 24, axle sleeve beam fin; 25, spacing muscle groove; 26, impeller beam fin; 27, revolution space; 28, rotor shaft receiving cavity; 31, impeller beam salient point; 51, axle sleeve beam salient point.
Embodiment
As shown in Figure 1, centrifugal draining pump of the present utility model comprises the pump housing 11 and pump cover 16, forms two by bearing cap 7 and 8 rotor chamber and the draining pump cover chambeies that isolate mutually.Wherein, rotor shaft 4 is set in the rotor chamber and is placed in p-m rotor 9 on the rotor shaft 4, rotor shaft 4 by bearing 12, bearing support 13, bearing cap 7 and 8 and the bearing of Qi Nei etc. be supported in the pump housing 11 pump housing 11 externally-arranged stator 15 and coils 14; Form the draining pump cover chambeies with water intake and water outlet in the pump cover 16, an end of rotor shaft 4 stretches in the pump cover 16, and the axle sleeve 3 and the impeller 1 of mutual socket is installed on it, axle sleeve 3 by impeller pad 6 by shutoff in the receiving cavity 17 of impeller 1.
As shown in Figure 4, axle sleeve 3 is inverse-T-shaped, comprises all-in-one-piece tubular sleeve main body 20 and annular boss 21, and there is a penetration hole 22 in the central authorities of axle sleeve main body 20 and annular boss 21, are used to install rotor shaft 4.The cross section is fan-shaped startup muscle 18 and axle sleeve 3 integrally castings, and is outwards protruded by axle sleeve main body 20, and the exterior arc surface that starts muscle 18 is concordant with the outer peripheral surface of annular boss 21.
The footpath of startup muscle 18 face to the left and right sides is straight plane, respectively offers one and extend startup muscle groove 23 vertically on these two sides, and the opening end of this startup muscle groove 23 is narrower than its inner cell body (shown in the cut-away view of Fig. 2); The side has two axle sleeve beam 5a, 5b of axle sleeve beam fin 24, along axial direction axle sleeve beam fin 24 is separately embedded in two startup muscle grooves 23 by the edge respectively, and axle sleeve beam 5a, 5b are fitted in start muscle 18 about two sides, be narrower than its inner cell body owing to start the opening end of muscle groove 23, therefore axle sleeve beam 5 can be along horizontal disengaging cell body, thereby axle sleeve beam 5a, 5b and this side are fitted tightly and is combined as a whole with startup muscle 18.The outer side surface of axle sleeve beam 5a and 5b also is a cambered surface concordant with annular boss 21, and its inner side surface cooperates with tubular body 20 sides.
Shown in Fig. 2,3, there is a cylindrical receiving cavity 17 in the central authorities of impeller 1, and the diameter of this receiving cavity 17 and the boss of axle sleeve 21 equal diameters are at the inwall inwardly protruding one spacing muscle 19 of this receiving cavity 17.The inner side surface of this spacing muscle 19 is the cambered surface that cooperates with axle sleeve main body 20 outer side surfaces.Its footpath two sides to the left and right is the plane, and respectively along axially having a spacing muscle groove 25, the opening end of this groove 25 is narrower than its inner cell body.Spacing muscle 19 radially each side establish impeller beam 2a, a 2b, the one side that the left and right sides face of impeller beam 2a, 2b and spacing muscle 19 is fitted is raised with fin 26 respectively, offer a groove 25 on the left and right sides face of spacing muscle 19 respectively, fin 26 matches with groove 25, forms as the same bonding structure of axle sleeve beam 5a, 5b and startup muscle 18 bi-side.
As shown in Figure 2, by axle sleeves 3 in the receiving cavity 17 that is placed in impeller 1 are just being changeed or the certain distance that reverse after, startup muscle 18 interferes with spacing muscle 19 and contacts.
In addition, as shown in Figure 3, two axle sleeve beams 5 with start the another side that muscle 18 do not fit and be provided with a plurality of salient points 51; On another each side that two impeller beams 2 and spacing muscle 19 are not fitted, be provided with a plurality of salient points 31.
As shown in Figure 2, impeller beam 2a, 2b inner side surface radially are the cambered surface that cooperates with axle sleeve external side of main body face, and its radially outer side surface be the cambered surface that cooperates with axle sleeve receiving cavity 17 inwalls.
As shown in Figure 1, be provided with a groove at the top of impeller 1, be called rotor shaft receiving cavity 28, this rotor shaft receiving cavity 28 matches with rotor shaft 4, and rotor shaft 4 passes axle sleeve 3 and inserts in this rotor shaft receiving cavity 28, is used to prevent impeller 1 beat.
As shown in Figure 2, axle sleeve 3 is packed into behind the receiving cavity 17 of impeller 1, form annular space 27 between the spacing muscle 19 of impeller 1 and the startup muscle 18 of axle sleeve 3, starting muscle 18 can rotate in this space 27.Behind electric motor starting, after axle 4 drives the certain angle of axle sleeve 3 idle running, impeller beam 2a, 2b in axle sleeve beam 5a, 5b on the startup muscle 18 of impeller 1 and the impeller 1 on the spacing muscle 19 contact, owing to have salient point 51 and 21 respectively on axle sleeve beam 5a, 5b and impeller beam 2a, the 2b, therefore pass through the contact between the salient point 51 and 21 between axle sleeve beam 5 and the impeller beam 2, and the startup muscle 18 of axle sleeve 3 and the spacing muscle 19 of impeller 1 are interfered and impeller 1 rotation.
In the present embodiment, start two groups of interference surface of contact are arranged between muscle 18 and the spacing muscle 19, promptly start muscle 18 radially left surface and spacing muscle 19 radially right flank be one group and interfere surface of contact, and start muscle 18 radially right flank and spacing muscle 19 radially left surface organize interference surface of contact for another.As long as have a beam just can realize cushioning effect between every group of interference surface of contact, following several structure promptly can be arranged: the radially right flank that starts muscle 18 is provided with axle sleeve beam 5b, and the footpath of spacing muscle 19 is provided with impeller beam 2a to the right; Perhaps, the radially left surface that starts muscle 18 is provided with axle sleeve beam 5a, and the footpath of spacing muscle 19 is provided with impeller beam 2b to the left; Perhaps, radially left surface is provided with beam 5a, right flank is provided with axle sleeve beam 5b to start muscle 18; Perhaps, the radially left surface of spacing muscle 19 is provided with impeller beam 2b, right flank is provided with impeller beam 2a.Interfere between the surface of contact for every group and also can establish two beams, radially left surface is provided with beam 5a, right flank is provided with axle sleeve beam 5b promptly to start muscle 18, and the radially left surface of spacing muscle 19 is provided with impeller beam 2b, right flank is provided with impeller beam 2a.
Fig. 5 shows the another kind of structure of axle sleeve 3 of the present utility model and impeller 1.As shown in Figure 5, axle sleeve 3 is inverse-T-shaped, comprises all-in-one-piece tubular sleeve main body 20 and annular boss 21, and there is a penetration hole 22 in the central authorities of axle sleeve main body 20 and annular boss 21, are used to settle rotor shaft 4.Cross section is fan-shaped startup muscle 18 and axle sleeve 4 integrally castings, and is outwards protruded by axle sleeve main body 20, starts muscle 18 cross sections and is substantially
And form between the axle sleeve main body 20 and along the circumferential direction run through the groove that starts the muscle extension, the exterior arc surface that starts muscle 18 is concordant with the outer peripheral surface of annular boss 21.The monolithic that beam 5 is made by elastic material is cast on the axle sleeve 3, formation is positioned at two beam 5a and the 5b that starts muscle 18 left and right sides, link to each other by passing the holding part 5c that starts groove between muscle 18 and the axle sleeve main body 20 between two beam 5a and the 5b, and by this holding part quilt vertically and radially limit or remain on the axle sleeve 3 firmly.
Claims (10)
1, a kind of centrifugal draining pump comprises the pump housing (11) and pump cover (16), also comprises:
Impeller (1), the spacing muscle (19) that has receiving cavity (17) and extend internally by receiving cavity (17) inwall;
The axle sleeve (3) that is used for impeller (1) rotation is installed in rotor shaft (4) and goes up and be sleeved in the receiving cavity (17), and the startup muscle (18) that has axle sleeve main body (20), boss (21) and outwards protruded by axle sleeve main body (20) is characterized in that:
In the radially bi-side that start muscle (18) one of at least,, be provided with the axle sleeve beam (5a, 5b) with its applying, the surface that being used to of axle sleeve beam (5a, 5b) contacts spacing muscle (19) is provided with salient point (51).
2, centrifugal draining pump as claimed in claim 1 is characterized in that: the radially bi-side of described startup muscle (18) are equipped with the axle sleeve beam (5a, 5b) with its applying.
3, centrifugal draining pump as claimed in claim 1 is characterized in that:
In the radially bi-side of described spacing muscle (19) one of at least,, be provided with the impeller beam (2a, 2b) with its applying, the surface that is used for contact start muscle (18) of described impeller beam (2a, 2b) is provided with salient point (31).
4, centrifugal draining pump as claimed in claim 3 is characterized in that:
The radially bi-side of described spacing muscle (19) are equipped with the impeller beam (2a, 2b) with its applying.
5, as claim 3 or 4 described centrifugal draining pumps, it is characterized in that:
The described side of described spacing muscle (19) is along axially having groove (25), the opening end that extends vertically of groove (25) is narrower than its inner cell body, described impeller beam (2a, 2b) surface has fin (26), forms described applying by its fin (26) is embedded in the groove (25) with spacing muscle (19).
6, as the arbitrary described centrifugal draining pump of claim 1 to 4, it is characterized in that:
Form between described startup muscle (18) and the axle sleeve main body (20) and run through the groove that starts muscle, the described bi-side of described startup muscle (18) are equipped with described axle sleeve beam (5a, 5b), connect by the holding part of passing described groove between two described axle sleeve beams (5a, 5b).
7, centrifugal draining pump as claimed in claim 6, it is characterized in that: the top of described impeller (1) is provided with a rotor shaft receiving cavity (28) that holds rotor shaft (4), described axle sleeve (3) by impeller pad (6) by shutoff in the receiving cavity (17) of impeller 1.
8, as the arbitrary described centrifugal draining pump of claim 1 to 4, it is characterized in that: the described side of described startup muscle (18) is offered groove (23) vertically, and the opening end that extends vertically of groove (23) is narrower than its inner cell body; Described axle sleeve beam (5) surface is provided with fin (24), makes itself and startup muscle (18) form described applying in the groove (23) by fin (24) is embedded.
9, a kind of centrifugal draining pump comprises the pump housing (11) and pump cover (16), also comprises:
Impeller (1), the spacing muscle (19) that has receiving cavity (17) and extend internally by receiving cavity (17) inwall;
The axle sleeve (3) that is used for impeller (1) rotation is installed in rotor shaft (4) and goes up and be sleeved in the receiving cavity (17), and the startup muscle (18) that has axle sleeve main body (20), boss (21) and outwards protruded by axle sleeve main body (20) is characterized in that:
In the radially bi-side of spacing muscle (19), be provided with the impeller beam (5a, 5b) with its applying, the surface that is used for contact start muscle (18) of impeller beam (5a, 5b) is provided with salient point (51).
10, centrifugal draining pump as claimed in claim 9 is characterized in that:
The described side of described spacing muscle (19) is along axially having groove (25), the opening end that extends vertically of groove (25) is narrower than its inner cell body, described impeller beam (2a, 2b) surface has fin (26), forms described applying by its fin (26) is embedded in the groove (25) with spacing muscle (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201831657U CN201318339Y (en) | 2008-12-19 | 2008-12-19 | Centrifugal draining pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201831657U CN201318339Y (en) | 2008-12-19 | 2008-12-19 | Centrifugal draining pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318339Y true CN201318339Y (en) | 2009-09-30 |
Family
ID=41197104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201831657U Expired - Lifetime CN201318339Y (en) | 2008-12-19 | 2008-12-19 | Centrifugal draining pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318339Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114365A (en) * | 2015-09-23 | 2015-12-02 | 常州雷利电机科技有限公司 | Long-life starting device and miniature draining pump with same |
| CN110454407A (en) * | 2019-09-10 | 2019-11-15 | 浙江日井泵业股份有限公司 | A kind of anti-wear self priming pump |
-
2008
- 2008-12-19 CN CNU2008201831657U patent/CN201318339Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114365A (en) * | 2015-09-23 | 2015-12-02 | 常州雷利电机科技有限公司 | Long-life starting device and miniature draining pump with same |
| CN105114365B (en) * | 2015-09-23 | 2017-07-11 | 常州雷利电机科技有限公司 | A kind of long-life starting device and apply its micro-drainage pump |
| CN110454407A (en) * | 2019-09-10 | 2019-11-15 | 浙江日井泵业股份有限公司 | A kind of anti-wear self priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGMEN IDEAR HANYU ELECTRICAL JOINT-STOCK CO., L Free format text: FORMER NAME: JIANGMEN HANYU ELECTRIC APPLIANCE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. Address before: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: Jiangmen Hanyu Electric Appliance Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090930 |