CN102517844A - Bearing bush connected with motor and impeller shaft on washing machine - Google Patents
Bearing bush connected with motor and impeller shaft on washing machine Download PDFInfo
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- CN102517844A CN102517844A CN2011104283896A CN201110428389A CN102517844A CN 102517844 A CN102517844 A CN 102517844A CN 2011104283896 A CN2011104283896 A CN 2011104283896A CN 201110428389 A CN201110428389 A CN 201110428389A CN 102517844 A CN102517844 A CN 102517844A
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- bearing insert
- motor
- bearing
- washing machine
- impeller axle
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Abstract
The invention discloses a bearing bush connected with a motor and an impeller shaft on a washing machine, which relates to the field of washing machines. The bearing bush is a cylindrical structure with a bearing hole in the middle, a radially-protruding convex platform is arranged on a section of the impeller shaft inserted into the bearing bush, and a protective support for preventing the impeller shaft from moving axially is arranged on the bearing bush. A framework oil seal is arranged above the convex platform of the impeller shaft in the bearing bush, an oil-retaining bearing is arranged under the convex platform, one end of the protective support is an open end, and the other end of the protective support is a semi-enclosed end with a support bearing hole at the center. The diameter of the support bearing hole is larger than that of the impeller shaft but smaller than external diameter of the framework oil seal, and the semi-enclosed end acts on the convex platform through the framework oil seal. The impeller shaft is prevented from moving in the bearing bush axially through action of the protective support to the framework oil seal and the convex platform. The bearing bush connected with the motor and the impeller shaft on the washing machine is simple in structure and convenient to install without additional parts, and has positive effect on self protection and reduction of the whole washing machine volume.
Description
Technical field
The present invention relates to mechanical field, be specifically related to a kind of bearing insert structure that is used for fixing the impeller axle of washing machine and prevents impeller axle axial float.
Background technology
Prior art middle (center) bearing lining is a hollow beam barrel that has axis hole; Be used for the movable various bearings of installing in the beam barrel; This bearing insert can only prevent moving radially of bearing and can not prevent the axial float of bearing; Therefore when rigid bearing, all be combined with the parts of corresponding rigid bearing axial float on each bearing insert.
Like notification number is the disclosed expansion type bearing lining of patent of CN2903545Y; Bearing passes bearing insert; Be provided with the axially movable swelling axle sleeve of rigid bearing in the bearing insert; Though this scheme has been strengthened the fixed effect of bearing,, make that the structure of whole bearing insert is complicated than complicacy and installation for the function that guarantees the swelling bearing also is provided with pressurization passageway and discharge channel on bearing insert.
Also have some bearing inserts to adopt the jump ring structure to limit bearing; Through jump ring groove and jump ring are set on bearing; The position that utilizes the interior oiliness bearing of installing of bearing insert to limit jump ring then, thus realize bearing even running on the axis direction in bearing insert.But when adopting the jump ring structure, at first need on bearing, design the jump ring groove, this has just increased the difficulty of processing of bearing, and the jump ring installation needs specific purpose tool in addition---Circlip tongs, jump ring is also pretty troublesome when dismounting, the difficulty when this has all increased the machine assembling.And the syndeton of some bearing also can't adopt the jump ring structure; Disclose a kind of small washing machine in the CN102140752A patent like the applicant, in order to reduce the volume of whole washing machine, wherein the impeller axle of washing machine is connected in bearing insert with motor shaft; Cancelled belt transmission structure; In this case, the jump ring groove can't be designed on the impeller axle, also just the jump ring limiting structure can not be adopted.
Summary of the invention
In order to solve the narrow problem of parts adaptability that prevents bearing insert inner bearing axial float in the prior art, it is a kind of simple in structure, easy for installation and can realize preventing the novel bearing bush structure of impeller axle axial float easily that the present invention provides.
To achieve these goals; Concrete scheme of the present invention is following: said bearing insert is the cylindrical structure of middle band dead eye; The axle that the impeller axle inserts in the bearing insert is provided with the radially boss of protrusion; The top of said bearing insert inner convex platform is provided with outside framework oil seal, and bearing insert is provided with the protective stent that prevents impeller axle axial float.
In order on bearing insert, to realize the purpose of clamping impeller axle convex platform; Said protective stent is the tubular structure that internal diameter matches with the bearing insert external diameter; One end of protective stent is an openend; The other end is the semiclosed end that the center is provided with the bracket bearing hole, and the diameter in bracket bearing hole is greater than the diameter of impeller axle and less than the external diameter of outside framework oil seal, semiclosed end acts on boss through outside framework oil seal; Restriction boss axial float, and then restriction impeller axle axial float.
In order to increase the fixed effect of bearing insert; Said bearing insert outer surface is provided with vertical outward extending lining seat diametrically, the openend of said protective stent and vertical contact of lining seat.
For improving the effect that is held of protective stent; The openend of said protective stent radially is provided with the support edge along protective stent.
For preventing the support edge translation; Said lining seat is provided with the openend translation that prevents protective stent and perpendicular to the retainer plate of lining seating face.
For improving the installation sealing of jewel seat; The openend outside of said protective stent has been with the sealing ring of buffering and sealing function.
For the restriction sealing ring moves; The support edge of said protective stent contacts one side and is provided with protruding circle with sealing ring, the relative position of sealing ring is provided with the groove that cooperates with this protruding circle.
For improving the buffering effect of protective stent; Said protective stent is the PP material, and said protective stent is the tubular structure that internal diameter and bearing insert external diameter are complementary and install.
In order to improve cooperating between bearing insert and the motor; The below of said bearing insert inner convex platform is provided with oiliness bearing.
For reducing the urceolus bottom space; Described impeller axle engages in bearing insert with the motor shaft of motor and is connected; Said bearing insert is installed the axis hole of the outer tube bottom of part insertion washing machine of protective cradle; Be fixed on the outer tube bottom of washing machine through the lining seat, motor is fixed on the bearing insert through fixture and then is installed in outer tube bottom.
The present invention prevents the axial float of impeller axle in bearing insert through protective stent to the effect of outside framework oil seal and boss.Not having between protective stent and the bearing insert and is fixedly connected relation, only is directly to be enclosed within on the bearing insert, itself does not influence the impeller axle of inside and the installation of bearing insert inner body.Protective stent can utilize the stable outer surface that is installed in bearing insert of the lining seat on the bearing insert; The support edge of protective stent is beneficial to the stable of protective stent itself, is installed in the outer sealing ring of protective stent and can improves the sealing between bearing insert and the outer cylinder member and reduce the buffering between the part.The mobile restriction that plays after the corresponding protruding circle that is provided with on lining and the sealing ring and groove can be squeezed to sealing ring.The protective stent of employing PP material has certain degree of hardness and elasticity can play the certain protection effect to bearing insert.The location-plate and the centring ring that on the lining seat, are provided with have guaranteed that the motor Fast Installation puts in place and have prevented that motor from moving radially, and have improved the stability of motor.Detent on the motor can form with centring ring and interfix, and has improved fixed effect.
This programme is simple in structure, easy for installation and do not need extra increase parts, and protection bearing insert and the volume that dwindles the whole washing machine are had positive effect.
Description of drawings
The bearing insert sectional structure sketch map that has protective stent among Fig. 1 the present invention.
Fig. 2 middle (center) bearing lining of the present invention is installed the plan structure sketch map behind the protective stent.
The stereogram of lining seat and motor installed surface among Fig. 3 the present invention.
Label declaration in the accompanying drawing: 1-bearing insert, 101-lining seat, 102-retainer plate, 103-location-plate, 104-centring ring, 105-positioning table, 106-impeller axle insertion end, 2-protective stent, the semiclosed end of 201-, 202-support edge, the protruding circle of 203-, 204-bracket bearing hole, 205-openend, 3-impeller axle, 301-boss, 4-sealing ring, 401-groove, 5-outside framework oil seal, 6-oiliness bearing.
The specific embodiment
Like Fig. 1, shown in 3; This programme relates to a kind of direct-drive motor that utilizes and passes through the washing machine structure that bearing insert 1 directly is connected with impeller axle 3; The axis hole that impeller axle 3 passes inner core, outer tube bottom inserts in the bearing insert 1, and the axis body that impeller axle 3 is positioned at bearing insert 1 part is provided with the upwards boss 301 of vertical protrusion of footpath, and oiliness bearing 6 is installed below boss 301; Outside framework oil seal 5 is installed above boss 301; Both are clipped in boss in the bearing insert, flexibly connect because impeller axle 3 inserts the motor shaft of bearing insert 1 interior back and motor, and motor are fixed; This just makes impeller axle 3 on downward direction, can not move; But at the device of the impeller axle insertion end 106 unobstructed outside framework oil seals of bearing insert 1, the impeller axle will drive the outside framework oil seal play that makes progress in motion process, and the protective stent of this programme can directly be blocked in the impeller axle in the bearing insert and prevent that the impeller axle from returning and scurry.
Like Fig. 1,2, shown in 3; This programme has increased a protective stent 2 at the outer surface of bearing insert 1; Protective stent 2 is the hollow circular-tube structure, and an end of protective stent 2 is the constant openend of diameter 205, and the other end is the semiclosed end 201 that the center is provided with bracket bearing hole 204; Protecting support 2 is enclosed within on the bearing insert 1 through openend 205; Semiclosed end contacts with the impeller axle insertion end 106 of bearing insert 1, and bracket bearing hole 204 diameters in semiclosed end 201 centers of circle are greater than the diameter of impeller axle 3 and less than the external diameter of outside framework oil seal 5, semiclosed end 201 acts on boss 301 through outside framework oil seal 5; Semiclosed like this end 201 will be fixed on boss 301 in the jewel seat 1 through outside framework oil seal 5, has reached to prevent impeller axle 3 purpose of axial float back in bearing insert 1.The profile of protective stent 2 is complementary with profile with bearing insert 1 and the inner surface of protective stent 2 contacts with the intimate of bearing insert 1; So neither can hinder the operate as normal of bearing insert 1, also can the inner body installation of bearing insert 1 not impacted.
For the installation site and the degree of depth that limits bearing insert 1, outward extending lining seat 101 is set upwards in the footpath of bearing insert 1 outer surface.Lining seat 101 can be used as bearing insert with other parts the fixed head fixedly the time, can also be as the gripper shoe of protective stent 2 openends, the pressure that like this protective stent 2 is received obtains dispersion.
Contact an end at protective stent 2 with lining seat 101 and is provided with one by port vertically extending support edge 202 to the axle center outside, the parallel and inner surface of support edge 202 and lining with serve as a contrast 101 and contact.When bearing insert 1 related protective stent 2 is inserted the axis hole on the washing machine urceolus; Bearing insert 1 is fixed on the bottom of urceolus through lining seat 101; The outer surface of protective stent 2 is compressed in the urceolus axis hole; And support edge 202 is grasped with the urceolus axis hole by lining seat 101, makes protective stent 2 not need fixture just to reach fixing purpose.Sealing ring just played compensator or trimmer pressure and prevented the effect of leaking with the mouth that is tightly connected this moment.
Serve as a contrast seat 101 left and right sides translations relatively for fear of the support edge 202 of protective stent 2 or the openend 205 of protective stent; On lining seat 101, a retainer plate 103 that surrounds support edge 202 or openend 205 is set; Retainer plate 103 perpendicular to lining seat 101 surfaces and with bearing insert 1 concentric, retainer plate 103 can also prevent that support edge 202 or openend 205 are in stressed crimp when excessive.
In order to strengthen protective stent 2 when bearing insert installs and fixes and the sealing between the urceolus axis hole; A sealing ring 4 is installed in the outside, support edge at protective stent; Sealing ring plays the effect of the compensator or trimmer pressure and the mouth that is tightly connected between protective stent and fixed part, avoid leaking.In order to have prevented to be out of shape after sealing ring is squeezed; Protruding circle 203 with the protective stent coaxial line is set on support edge and sealing ring contact-making surface; Be provided with the groove 401 of indent in sealing ring and protruding circle contact position, protruding circle after cooperatively interacting and groove not only can be located the pressure that the position of sealing ring can also disperse sealing ring to receive.
Like Fig. 1, shown in 3; In order to improve cooperating between bearing insert and the washing machine direct-drive motor; This programme is symmetrical set four orthogonal location-plates 103 on the another side of lining seat 101 relative protective stents, the quantity of location-plate also can be arranged to three or six s' mode, as long as can form a circle and stable supporting surface; Location-plate 103 is vertical with lining seat 101; Location-plate 103 extends to the circumferential edge that serves as a contrast seat by the axis hole place of bearing insert, and the contact edge of location-plate and motor is provided with positioning table 105, and positioning table 105 raises up; Four positioning tables define the circular channel of an indent, and the diameter of this circular channel and the diameter of motor adapt.For the reinforcing line seat to the qualification effect of motor and the stability of enhanced positioning plate; On the location-plate face of lining seat, a centring ring 104 is set again; Centring ring 104 intersects with each location-plate 103 and the intersection forms stable right-angled intersection; This structure makes location-plate and centring ring form mutual support, makes the structure of whole bearing insert more solid.Centring ring 104 exceeds location-plate 103 and forms a dome; On the contact-making surface of motor, be provided with and the centring ring corresponding groove; The height of centring ring 104 is corresponding with the degree of depth of recessed circle, but should not exceed positioning table 105, when motor is inserted the space that positioning table surrounds; Centring ring inserts in the groove automatically, and the stability of motor is further strengthened.
The motor device that is fixed is fixed in the passage that positioning table surrounds and be positioned plate and centring ring support during installation; The motor shaft of motor is connected with the engaging of impeller axle in bearing insert simultaneously; The impeller the tip of the axis is fixed by motor shaft like this; The axle body of impeller axle has carried out relative fixed by outside framework oil seal and protective stent again in bearing insert, realized preventing the purpose of impeller axle axial float fully.
The present invention need not change the structure of existing bearing insert; And the inside that does not influence bearing insert installs, and also need not do any processing to bearing, and is easy for installation, simple to operate; Various bearing mounting means be can be suitable for fully, installation part and installation steps reduced.
Claims (10)
1. the bearing insert that motor is connected with the impeller axle on the washing machine; Said bearing insert (1) is the cylindrical structure of middle band dead eye; The axle that impeller axle (3) inserts in the bearing insert is provided with the radially boss (301) of protrusion; It is characterized in that the top of said bearing insert (1) inner convex platform (301) is provided with outside framework oil seal (5), bearing insert (1) is provided with the protective stent (2) that prevents impeller axle axial float.
2. the bearing insert that motor is connected with the impeller axle on a kind of washing machine as claimed in claim 1; It is characterized in that; The tubular structure that said protective stent (2) matches with bearing insert (1) external diameter for internal diameter; One end of protective stent is openend (205); The other end is the semiclosed end (201) that the center is provided with bracket bearing hole (204), and the diameter of bracket bearing hole (204) is greater than the diameter of impeller axle (3) and less than the external diameter of outside framework oil seal (5), semiclosed end (201) acts on boss (301) through outside framework oil seal (5).
3. the bearing insert that motor is connected with the impeller axle on a kind of washing machine as claimed in claim 2; It is characterized in that; Said bearing insert (1) outer surface is provided with vertical outward extending lining seat (101) diametrically, and (101) are vertical contacts for the openend (205) of said protective stent (2) and lining.
4. motor and the bearing insert that the impeller axle is connected is characterized in that on a kind of washing machine as claimed in claim 3, and the openend (205) of said protective stent (2) radially is provided with support edge (202) along protective stent (2).
5. like motor and the bearing insert that the impeller axle is connected on claim 3 or the 4 described a kind of washing machines, it is characterized in that said lining seat (101) is provided with the openend translation that prevents protective stent and perpendicular to the retainer plate (102) of lining seating face.
6. like motor and the bearing insert that the impeller axle is connected on described any one washing machine of claim 2 to 5, it is characterized in that the openend outside of said protective stent (2) has been with the sealing ring (4) of buffering and sealing function.
7. the bearing insert that motor is connected with the impeller axle on a kind of washing machine as claimed in claim 5; It is characterized in that; The support edge (202) of said protective stent (2) contacts one side and is provided with protruding circle (203) with sealing ring, the relative position of sealing ring (4) is provided with the groove (401) that cooperates with this protruding circle (203).
8. like motor and the bearing insert that the impeller axle is connected on described any one washing machine of claim 1-7, it is characterized in that said protective stent (2) is the PP material, said protective stent (2) is the tubular structure that internal diameter and bearing insert (1) external diameter are complementary and install.
9. motor and the bearing insert that the impeller axle is connected is characterized in that on a kind of washing machine as claimed in claim 1, and the below of said bearing insert (1) inner convex platform (301) is provided with oiliness bearing (6).
10. the bearing insert that motor is connected with the impeller axle on a kind of washing machine as claimed in claim 3; It is characterized in that; Described impeller axle (3) engages in bearing insert (1) with the motor shaft of motor and is connected; Said bearing insert (1) is installed the axis hole of the outer tube bottom of part insertion washing machine of protective cradle, is fixed on the outer tube bottom of washing machine through lining seat (101), and motor is fixed on the bearing insert through fixture and then is installed in outer tube bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110428389.6A CN102517844B (en) | 2011-08-25 | 2011-12-20 | The bearing insert that on a kind of washing machine, motor is connected with impeller shafts |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110245635 | 2011-08-25 | ||
| CN2011102456354 | 2011-08-25 | ||
| CN201110245635.4 | 2011-08-25 | ||
| CN201110428389.6A CN102517844B (en) | 2011-08-25 | 2011-12-20 | The bearing insert that on a kind of washing machine, motor is connected with impeller shafts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102517844A true CN102517844A (en) | 2012-06-27 |
| CN102517844B CN102517844B (en) | 2016-11-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11137890A (en) * | 1997-10-27 | 1999-05-25 | Lg Electron Inc | Bearing housing joint structure of direct coupling washing machine |
| CN2329681Y (en) * | 1998-04-28 | 1999-07-21 | 海尔集团公司 | Washing machine wave wheel shaft bearing backing seat with sealing ring |
| JP2000051568A (en) * | 1998-08-10 | 2000-02-22 | Ntn Corp | Driving power transmission mechanism for fully automatic washing machine |
| CN102134800A (en) * | 2011-03-04 | 2011-07-27 | 海尔集团公司 | Fixation-free connection way of motor of small washing machine |
| CN102140751A (en) * | 2011-03-04 | 2011-08-03 | 海尔集团公司 | Small buoyancy-type washing machine |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11137890A (en) * | 1997-10-27 | 1999-05-25 | Lg Electron Inc | Bearing housing joint structure of direct coupling washing machine |
| CN2329681Y (en) * | 1998-04-28 | 1999-07-21 | 海尔集团公司 | Washing machine wave wheel shaft bearing backing seat with sealing ring |
| JP2000051568A (en) * | 1998-08-10 | 2000-02-22 | Ntn Corp | Driving power transmission mechanism for fully automatic washing machine |
| CN102134800A (en) * | 2011-03-04 | 2011-07-27 | 海尔集团公司 | Fixation-free connection way of motor of small washing machine |
| CN102140751A (en) * | 2011-03-04 | 2011-08-03 | 海尔集团公司 | Small buoyancy-type washing machine |
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Effective date of registration: 20160621 Address after: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant after: Qingdao Haier Washing Machine Co., Ltd. Address before: 266101 Haier Industrial Park, No. 1, Haier Road, hi tech park, Laoshan District, Shandong, China Applicant before: haier group corporation Applicant before: Qingdao Haier Washing Machine Co., Ltd. |
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