CN202017632U - Impeller starting mechanism and draining pump of alternating current permanent magnet synchronous motor - Google Patents
Impeller starting mechanism and draining pump of alternating current permanent magnet synchronous motor Download PDFInfo
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- CN202017632U CN202017632U CN2011200662761U CN201120066276U CN202017632U CN 202017632 U CN202017632 U CN 202017632U CN 2011200662761 U CN2011200662761 U CN 2011200662761U CN 201120066276 U CN201120066276 U CN 201120066276U CN 202017632 U CN202017632 U CN 202017632U
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- permanent magnet
- synchronous motor
- magnet synchronous
- starting mechanism
- muscle
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Abstract
The utility model discloses an impeller starting mechanism of an alternating current permanent magnet synchronous motor, which comprises a shaft sleeve connected with a rotor shaft, wherein a start rib is protruded out of the outer side wall of a tubular main body of the shaft sleeve; an impeller is provided with an accommodation cavity capable of accommodating the shaft sleeve; a limiting rib is protruded out of the inner side wall of the accommodation cavity; the starting rib is intervened with the limiting rib; damping elastic bodies are respectively arranged between each group of interference surfaces of the starting rib and the limiting rib; and the radial width of each damping elastic body is matched with the radial distance between the inner side wall of the accommodation cavity and the outer side wall of the shaft sleeve main body. According to the impeller starting mechanism, the impeller starting mechanism of the alternating current permanent magnet synchronous motor is improved; the work noise of the permanent magnet synchronous motor can be effectively reduced; an intervened planar relationship is formed between the starting rib and the limiting rib; the starting rib and the limiting rib are not directly contacted, so that the starting rib and the limiting rib are no longer produced to be thinner, smaller and shorter by considering the malposition; the larger stressed surface can be ensured; and the impeller starting mechanism is wear resistant and durable and can be used for motors with higher power.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to the draining pump technical field of motors.
Background technique
The mandate publication number is CN2916195Y, notice of authorization day is on June 27th, 2007, denomination of invention is the Chinese utility model patent of " a kind of centrifugal draining pump ", a kind of centrifugal draining pump is disclosed, there is the receiving cavity of a ccontaining axle sleeve in its impeller central authorities, and the axle sleeve sidewall is provided with the startup muscle, and the receiving cavity inwall is provided with spacing muscle, come in contact and transmission by a pair of beam between the opposing side of startup muscle and spacing muscle, beam is embedded in respectively in the groove that starts muscle and spacing muscle by fin.When rotating shaft was rotated, the startup muscle on the axle sleeve promptly passed through the beam indirect drive in the spacing muscle of impeller receiving cavity, thereby drives impeller is rotated.In this patent, beam is to be embedded in the spacing muscle of receiving cavity of the startup muscle of axle sleeve and impeller, and therefore, the action of beam is synchronized with axle sleeve or impeller respectively, and damping mainly comes from absorption and the buffering of the elastic material of beam to mechanical impact force.
The mandate publication number is CN201262196Y, notice of authorization day is on June 24th, 2009, denomination of invention discloses a kind of rotor of permagnetic synchronous motor and the transmission device between the working component for the Chinese utility model patent of " rotor of permagnetic synchronous motor and the transmission device between the working component ", the axle sleeve sidewall is provided with first and starts muscle, the receiving cavity inwall of working component (being equivalent to impeller) is provided with spacing muscle, the first startup muscle and spacing muscle are the dislocation design, be provided with the anticollision gap between the two, be provided with a snubber block between the two, snubber block contacts with startup muscle and spacing muscle respectively, thereby the rotation that axle sleeve starts muscle is passed to the spacing muscle of working component, drives working component and rotate.Snubber block neither is fixed in axle sleeve (startup muscle) and also is not fixed in working component (spacing muscle), but independently is arranged in the receiving cavity of working component.When rotor rotation, start muscle and at first contact snubber block, promote elastomer block then and contact spacing muscle, the startup muscle is distributed in being compressed in the volume of snubber block to the impact energy of spacing muscle, start the impact of muscle thereby slow down, and then reduce the operational noise of permagnetic synchronous motor spacing muscle.Contact with the direct of spacing muscle for fear of starting muscle, start muscle and spacing muscle in this patent and be the dislocation design.In order to reach the purpose of dislocation, will inevitably reduce to start the diameter or the length of muscle and spacing muscle, promptly start muscle and spacing muscle attenuation shortens, stress surface diminishes.When the power of pump increased, stress surface little meeting causing member damaged situation appearance such as more.
The model utility content
The purpose of this utility model is to provide a kind of improved impeller starting mechanism, can reach the purpose that reduces operational noise, can increase stress surface again, satisfy the requirement of heavy-duty motor, structure durable.
Another purpose of the present utility model is to provide a kind of AC permanent magnet synchronous motor of having used above-mentioned impeller starting mechanism.
Of the present utility model also have a purpose to be to provide a kind of centrifugal draining pump of having used above-mentioned motor.
In order to reach above-mentioned model utility purpose, the utility model has adopted following technological scheme: a kind of AC permanent magnet synchronous motor impeller starting mechanism, comprise the axle sleeve that connects rotor shaft, the tubular body outer side wall of axle sleeve protrudes one and starts muscle, impeller have one can ccontaining described axle sleeve receiving cavity, the receiving cavity madial wall protrudes a spacing muscle, described startup muscle and described spacing muscle interfere, all be installed on the damping elastomer between each group interference surface of described startup muscle and spacing muscle, the elastomeric radial width of described damping is consistent with the radial distance between described receiving cavity madial wall and the described axle sleeve main body outer side wall.
As a kind of mode of execution wherein, described damping elastomer is that cross section is fan-shaped cylinder.
As a kind of mode of execution wherein, described damping elastomer is a cylindrical body.
As a kind of mode of execution wherein, described damping elastomer is oval cylinder.
As a kind of mode of execution wherein, described damping elastomer is a spheroid.
As optional mode of execution, described damping elastomer is solid body or hollow body.
As a kind of mode of execution, the elastomeric outer side wall of described damping is provided with the tooth bar of projection.
As a kind of mode of execution, the external side of main body wall of described axle sleeve is provided with the tooth bar of projection.
A kind of AC permanent magnet synchronous motor that uses aforesaid AC permanent magnet synchronous motor impeller starting mechanism.
A kind of centrifugal draining pump that uses aforesaid AC permanent magnet synchronous motor.
The utility model has improved the impeller starting mechanism of AC permanent magnet synchronous motor, specifically, between the spacing muscle of impeller receiving cavity and rotor axle sleeve start each group interference surface of muscle, the damping elastomer is set exactly, this damping elastomer both can slide between axle sleeve and receiving cavity, also can roll, be not fixed in spacing muscle or start muscle, when rotor rotation, rotor touches the damping elastomer behind idle running one segment distance, and promotion damping elastomer moves a segment distance again by damping elastomer promotion wheel rotation, damping elastomer compressive deformation, the startup muscle is distributed in being compressed in the volume of snubber block to the impact energy of spacing muscle, start the impact of muscle thereby slow down, reduce the operational noise of permagnetic synchronous motor effectively spacing muscle.On the other hand, owing between the interference surface of every pair of spacing muscle and startup muscle, be equipped with the damping elastomer, no matter motor is just to change or reverse, although start muscle and spacing muscle is the plane relation that is in interference, also can directly not contact, but come transmitting movement by this damping elasticity, therefore starting muscle and spacing muscle need not do thin doing and do weak point for a short time because considering to misplace, and can guarantee to have bigger stress surface, wear-resistant, durable in use, applicable to more powerful motor.And because the damping elastomer does not need to fix with starting between muscle or the spacing muscle, so do not need to process chimeric groove position, reduced manufacturing procedure, made things convenient for installation, and that its complete outer surface has been strengthened further also is stressed.
Description of drawings
Fig. 1 is the overall structure schematic representation of centrifugal draining pump.
Fig. 2 is the internal structure schematic representation of centrifugal draining pump.
Fig. 3 is the assembling schematic representation of impeller and axle sleeve.
Fig. 4 is the plane structure schematic representation of impeller and axle sleeve, and wherein Fig. 4 a is provided with an elastomeric schematic representation of damping between every group of interference surface, and Fig. 4 b is provided with two elastomeric schematic representation of damping between every group of interference surface.
Fig. 5 a is the structural representation of band tooth axle sleeve.
Fig. 5 b is a structural representation of not being with the tooth axle sleeve.
Fig. 6 a is the solid shock structure structural representation of fan-shaped.
Fig. 6 b is cylindric solid shock structure structural representation.
Fig. 6 c is the solid shock structure structural representation of ellipticity.
Fig. 6 d is spherical solid shock structure structural representation.
Fig. 7 a is the hollow shock structure structural representation of fan-shaped.
Fig. 7 b is cylindric hollow shock structure structural representation.
Fig. 7 c is the hollow shock structure structural representation of ellipticity.
Fig. 8 is the assembling schematic representation of receiving cavity and damping elastomer and axle sleeve.
Wherein, 1 rear bearing, 2 pump housings, 3 rotors, 4 fore bearings, 5 impeller retaining washers, 6 damping elastomers, 7 rotor shafts, 8 coils, 9 axle sleeves, 91 start muscle, 10 impellers, 11 stator iron cores, 12 receiving cavities, 121 spacing muscle
Embodiment
As Fig. 1～shown in Figure 2, be centrifugal draining pump, it comprises two rotor chamber and the draining pump cover chambeies that isolate mutually.Rotor chamber is made up of the pump housing 2, p-m rotor 3, rotor shaft 7, bearing 1,4 and bearing supports; Draining pump cover chamber is made up of the pump cover that contains water intake, axle sleeve 9, impeller 10 and impeller retaining washer 5.The alternating magnetic field that coil 8 produces drives p-m rotor 3 by stator iron core 11 and rotates forward or backwards.
As shown in Figure 8, impeller 10 central authorities have a receiving cavity 12, are used for ccontaining axle sleeve 9, below the receiving cavity of impeller 10 by the impeller retaining washer 5 of annular axle sleeve 9 shutoff in receiving cavity 12.Receiving cavity 12 madial walls protrude a spacing muscle 121.Axle sleeve 9 has a tubular body, and the outer side wall of tubular body outwards protrudes one and starts muscle 91.Start the relation that muscle 91 and spacing muscle 121 are in interference.For this example,, therefore, there are two groups of interference surfaces between the two because startup muscle 91 and spacing muscle 121 respectively have one.
Be installed on two damping elastomers 6 in the receiving cavity 12, be in respectively between two groups of interference surfaces that start muscle and spacing muscle, shown in Fig. 4 a, lay respectively at the both sides that start muscle 91.Radial distance between the radial width of damping elastomer 6 and axle sleeve main body and the receiving cavity main body inner wall is suitable, the specifically difference to some extent according to the elastomeric concrete pattern of damping.Damping elastomer 6 can slide in the receiving cavity main body or roll.The damping elastomer can adopt as Fig. 6～various structural types shown in Figure 7, and can adopt cross section is fan-shaped fan-shaped cylinder 61, cylindrical body 62, oval cylinder 63 or spheroid 64.For fan-shaped cylinder 61, cylindrical body 62 and oval cylinder 63, its cartridges parallel is in the direction of rotor shaft 7 during installation.For damping elastomers such as fan-shaped cylinder 61 and oval cylinders 63, during work in receiving cavity, sliding, for guaranteeing its smooth and easy slip, between damping elastomer and axle sleeve main body and the receiving cavity main body inner wall for concerning movingly; For damping elastomers such as spheroid 64 or cylindrical bodys 62, in receiving cavity, roll during work, can adopt interference fit between damping elastomer and axle sleeve main body and the receiving cavity main body inner wall.
Except adopting the solid construction shown in each figure of Fig. 6, also can adopt hollow- core construction 65,66,67 as shown in Figure 7.The time distortion by compression of the damping elastomer of hollow-core construction is big, has good cushioning effect.
The damping elastomer can adopt plastic material, as rubber.
The main body outer side wall of axle sleeve 9 can adopt the band tooth too and not be with two kinds of structural types of tooth, shown in Fig. 5 a and Fig. 5 b.The axle sleeve outer side wall is provided with the strip tooth and helps promoting the rolling of damping elastomer.
When rotor rotation, the axle sleeve 9 that is fixed on the rotor shaft 7 promotes impeller 10 rotations by damping elastomer 6.Because of elastomer has good cushioning effect, so the beating noise can reduce even eliminate impeller 10 and start the time between axle sleeve 9 and the damping elastomer 6, between damping elastomer 6 and the impeller 10, peace and quiet more feel more comfortable when making machine operation.When motor reverses, because owing to start between another group interference surface of muscle and spacing muscle and also be provided with the damping elastomer, so start muscle and can directly not contact spacing muscle equally and cause noise.
In this example, axle sleeve is provided with one and starts muscle 91, receiving cavity is provided with a spacing muscle 121, in the practical application, do not get rid of the startup muscle that is provided with one or more and the situation of the spacing muscle of one or more, between the every group of interference surface that starts muscle and spacing muscle, all install a damping elastomer, directly do not touch spacing muscle so that start muscle, but rotation is passed to spacing muscle by the damping elastomer.
In this example, between each group interference surface, be provided with a damping elastomer, in the practical application, two even a plurality of damping elastomer can also be set, shown in Fig. 4 b.
The utility model includes, but are not limited to the content of the foregoing description, other all fall within the protection domain of the present utility model with product structure that the technical solution of the utility model has identical essentiality content.
Claims (10)
1. AC permanent magnet synchronous motor impeller starting mechanism, comprise the axle sleeve that connects rotor shaft, the tubular body outer side wall of axle sleeve protrudes one and starts muscle, impeller have one can ccontaining described axle sleeve receiving cavity, the receiving cavity madial wall protrudes a spacing muscle, described startup muscle and described spacing muscle interfere, it is characterized in that: all be installed on the damping elastomer between each group interference surface of described startup muscle and spacing muscle, the radial distance between elastomeric radial width of described damping and described receiving cavity madial wall and the described axle sleeve main body outer side wall is suitable.
2. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: described damping elastomer is that cross section is fan-shaped cylinder.
3. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: described damping elastomer is a cylindrical body.
4. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: described damping elastomer is oval cylinder.
5. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: described damping elastomer is a spheroid.
6. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: described damping elastomer is solid body or hollow body.
7. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: the external side of main body wall of described axle sleeve is provided with the tooth bar of projection.
8. AC permanent magnet synchronous motor impeller starting mechanism according to claim 1 is characterized in that: the external side of main body wall surface of described axle sleeve is smooth.
9. the AC permanent magnet synchronous motor of use such as the described AC permanent magnet synchronous motor impeller of the arbitrary claim of claim 1～8 starting mechanism.
10. centrifugal draining pump that uses AC permanent magnet synchronous motor as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200662761U CN202017632U (en) | 2011-03-15 | 2011-03-15 | Impeller starting mechanism and draining pump of alternating current permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200662761U CN202017632U (en) | 2011-03-15 | 2011-03-15 | Impeller starting mechanism and draining pump of alternating current permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202017632U true CN202017632U (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200662761U Expired - Lifetime CN202017632U (en) | 2011-03-15 | 2011-03-15 | Impeller starting mechanism and draining pump of alternating current permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202017632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094832A (en) * | 2011-03-15 | 2011-06-15 | 江门市汉宇电器有限公司 | Vane wheel starting mechanism of alternating-current permanent magnet synchronous motor and drainage pump |
| CN104019050A (en) * | 2014-05-29 | 2014-09-03 | 安徽银龙泵阀股份有限公司 | Efficient combined pump core |
-
2011
- 2011-03-15 CN CN2011200662761U patent/CN202017632U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094832A (en) * | 2011-03-15 | 2011-06-15 | 江门市汉宇电器有限公司 | Vane wheel starting mechanism of alternating-current permanent magnet synchronous motor and drainage pump |
| CN104019050A (en) * | 2014-05-29 | 2014-09-03 | 安徽银龙泵阀股份有限公司 | Efficient combined pump core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Hanyu Group Co., Ltd. Address before: 529000 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111026 |
|
| CX01 | Expiry of patent term |