CN109245394A - Sealing structure, shaft sealer and motor - Google Patents
Sealing structure, shaft sealer and motor Download PDFInfo
- Publication number
- CN109245394A CN109245394A CN201811079827.0A CN201811079827A CN109245394A CN 109245394 A CN109245394 A CN 109245394A CN 201811079827 A CN201811079827 A CN 201811079827A CN 109245394 A CN109245394 A CN 109245394A
- Authority
- CN
- China
- Prior art keywords
- sealing
- sealing structure
- groove
- motor
- dust
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
Abstract
The present invention provides a kind of sealing structure, shaft sealer and motors, are related to technical field of motors, solve the bad technical problem of motor shaft sealing effect.The sealing structure includes sealing element of the installation by adhering at position to be sealed, at least one sealing is disposed with along dust approach axis on sealing element and drive member contacts face, all sealings are connected on dynamic component surface, and are had between two neighboring sealing to accommodate dust, greasy dirt and the groove of water.The present invention on sealing element by being arranged multiple sealings, and setting accommodates the groove of dust, greasy dirt and water between adjacent sealing part, it effectively prevent dust grease to enter inside motor by motor shaft surface, bearing noise and other abnormal sounds are impacted or generated to motor, also substantially increase the degree of protection of motor to avoid the impurity such as dust greasy dirt from entering inside motor.
Description
Technical field
The present invention relates to technical field of motors, more particularly, to a kind of sealing structure, shaft sealer and motor.
Background technique
In order to improve the degree of protection of motor, there must be sealing to tie between the output shaft of motor and the motor casing of standing
Structure.In the prior art, the sealing structure of motor shaft is generally sealed by the way of installing waterproof cover at motor shaft, this
Only simply one waterproof cover of installation, waterproof cover contact with motor shaft end or have very big gap, sealing effect to mode
Fruit is bad, and many water, oil or dust is caused to enter inside motor by axis surface, leads to motor bearings because of droplet or ash
Dirt generates the abnormal sounds noise problem such as bearing, so this waterproof cover not can solve, shaft end is grease proofing, waterproof and dustproof asks
Topic.
Summary of the invention
The purpose of the present invention is to provide sealing structure, shaft sealer and motors, existing in the prior art to solve
The bad technical problem of motor shaft sealing effect.
To achieve the above object, the present invention provides following technical schemes:
A kind of sealing structure provided by the invention, the sealing element including installation by adhering at position to be sealed, the sealing
It is disposed at least one sealing along dust approach axis on part and drive member contacts face, all sealings support
It connects on dynamic component surface, and has between the two neighboring sealing to accommodate dust, greasy dirt and the groove of water.
As a further improvement of the present invention, the quantity of the sealing is three, and three sealings are followed successively by the
One sealing, the second sealing and third sealing.
As a further improvement of the present invention, the sealing element is hollow structure, and inside has accommodating cavity, and described first is close
Offered in the groove between envelope portion and second sealing be connected to the accommodating cavity through opening.
As a further improvement of the present invention, between first sealing and the third sealing and dynamic component surface
It is linear sealing structure.
It as a further improvement of the present invention, is surface seal structure between second sealing and dynamic component surface.
As a further improvement of the present invention, the sealing element is annular seal cushion rubber, and the sealing is arranged in institute
It states on the inner periphery of sealing rubber ring.
As a further improvement of the present invention, axial direction setting of all sealings along the sealing rubber ring.
As a further improvement of the present invention, described recessed between first sealing and second sealing
Slot cross-section is triangle.
As a further improvement of the present invention, described recessed between second sealing and the third sealing
Slot cross-section is curved arc shape.
As a further improvement of the present invention, described recessed between first sealing and second sealing
Slot length is less than the groove length between second sealing and the third sealing.
As a further improvement of the present invention, the sealing rubber ring is made of nitrile rubber.
A kind of shaft sealer provided by the invention, including ontology and shaft, described shaft one end are rotatably arranged on described
In ontology, the other end stretches out described in vitro, is provided on the axle stretch end face of the ontology for accommodating the sealing structure
Fixing groove.
As a further improvement of the present invention, the sealing structure thickness is identical as the fixed groove depth.
A kind of motor provided by the invention, including the shaft sealer.
By the way that multiple sealings are arranged on sealing element, and between adjacent sealing part, setting accommodates dust, greasy dirt to the present invention
With the groove of water, dust grease is effectively prevent to enter inside motor by motor shaft surface, to avoid the impurity such as dust greasy dirt
It enters inside motor and bearing noise and other abnormal sounds is impacted or generated to motor, also substantially increase the protection etc. of motor
Grade.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the cross-sectional view of the non-installation sealing structure in motor-shaft extending end of the present invention；
Fig. 2 is the cross-sectional view that motor-shaft extending end of the present invention installs sealing structure；
Fig. 3 is the main view of sealing structure of the present invention；
Fig. 4 is the sectional view in Fig. 3 at AA.
1, sealing element in figure；11, sealing；111, the first sealing；112, the second sealing；113, third sealing；
12, groove；13, accommodating cavity；14, it is open；2, ontology；21, fixing groove；3, shaft.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
As shown in Figure 1, the sealing element the present invention provides a kind of sealing structure, including installation by adhering at position to be sealed
1, sealing element 1 is disposed at least one sealing 11, all sealings along dust approach axis on drive member contacts face
Portion 11 is connected on dynamic component surface, and is had between two neighboring sealing 11 to accommodate the recessed of dust, greasy dirt and water
Slot 12.The movement of sealing element 1 in order to prevent, position to be sealed are provided with fixing groove 21, and sealing element 1 is embedding in an interference fit
Enter into fixing groove 21, and bonded together between sealing element 1 and the groove face of fixing groove 21 by glue, sealing element can be prevented
The rotation of 1 follow-up unit.
Embodiment 1:
As shown in figure 4, the quantity of sealing 11 is three, and three sealings 11 are followed successively by as optional embodiment
First sealing 111, the second sealing 112 and third sealing 113.Wherein, the first sealing 111 and third sealing 113
It is linear sealing structure between dynamic component surface, is surface seal structure between the second sealing 112 and dynamic component surface.First
Sealing 111 is linear sealing, exclusion seal is carried out as the first line of defence, when the first sealing 111 cannot be by dust greasy dirt etc.
When blocking, impurity can enter storage, the second sealing in the groove 12 between the first sealing 111 and the second sealing 112
112 are used as second defence line, which is face sealing, and sealing effect is more preferable, when the second sealing 112 fails to hinder
When blocking impurity, impurity can enter storage in the groove 12 between the second sealing 112 and third sealing 113.
As shown in Figures 2 and 3, in the present invention, sealing element 1 is annular seal cushion rubber, and rotating member is motor shaft, sealant
The outer diameter of circle is suitable with the diameter of fixing groove 21, and the internal diameter of sealing rubber ring is suitable with 3 diameter of machine shaft, and the setting of sealing 11 exists
On the inner periphery of sealing rubber ring.
As shown in figure 4, three sealings 11 are arranged along the axially spaced-apart of sealing rubber ring, so that three safeguard structures are formed,
12 section of groove between the first sealing 111 and the second sealing 112 is triangle, and the triangle is close to sealant
One side angle with horizontal plane on circle right side is greater than folder of the triangle between that side and horizontal plane of the second sealing 112
Angle；12 section of groove between the second sealing 112 and third sealing 113 is curved arc shape, and the curved arc shape is close to close
The radian in 1 left side of sealing is greater than the radian close to the second sealing 112.Further, it is located at the first sealing 111 and second
It is long that 12 length of groove between sealing 112 is less than the groove 12 between the second sealing 112 and third sealing 113
Degree.
In order to improve the service life of sealing rubber ring, in the present invention, sealing rubber ring is made of nitrile rubber.
Embodiment 2:
Embodiment 2 and the difference of embodiment 1 are only that excessive impurity is accumulated before the second sealing 112 in order to prevent,
In the present invention, sealing element 1 is hollow structure, and inside has accommodating cavity 13, between the first sealing 111 and the second sealing 112
Groove 12 in offer be connected to accommodating cavity 13 through opening 14, fail the dust impurity stopped by the first sealing 111
It is entered in accommodating cavity 13 etc. entering in groove 12 and passing through through opening 14, so as to reduce the ash being deposited in groove 12
Trifle in the world quality is blocked in dust outside sealing element 1, greatly improves degree of protection.The opening 14 is provided with triangular groove 12
Liang Tiao straight flange intersection.Accommodating cavity 13 is arranged in entire sealing rubber ring along axially penetrating through for sealing rubber ring, so that this hair
Bright middle accommodating cavity 13 is circular ring shape accommodating cavity.
As depicted in figs. 1 and 2, the present invention provides a kind of shaft sealer, including ontology 2 and shaft 3,3 one end of shaft
It is rotatably arranged in ontology 2, the other end stretches out outside ontology 2, is provided on the axle stretch end face of ontology 2 for accommodating sealing structure
Fixing groove 21.
Preferably, sealing structure thickness is identical as 21 depth of fixing groove.
As shown in Figure 1, the present invention provides a kind of motor, including shaft sealer, specifically, being used in motor shaft
21 design structure of fixing groove of evagination indent, indent are intended to be directly embedded into sealing rubber ring the inside, can be effective
Fixing seal cushion rubber prevents cushion rubber from being moved；Sealing rubber ring, sealing rubber ring sectional view such as Fig. 4 are made using nitrile rubber；Using
The ring structure of inside and outside circle, sealing rubber ring diameter 21 diameter dimension of indent fixing groove that can appear with motor shaft is identical, internal diameter
Size can be identical as 3 diameter of machine shaft；It is three lip design structures using three sealings 11, wherein the first sealing 111 is
Lip is protected, the second sealing 112 and third sealing 113 are main lip.
In the present invention, hollow design is used inside sealing rubber ring, it is external to be designed on motor shaft contact surface using more lips, it is more
Lip design is set between the first sealing 111 and the second sealing 112 by aperture for more effective blocks dust grease
Meter, if the first sealing 111 fails complete blocks dust etc., dust can enter the hollow portion of sealing rubber ring by position of opening
In the accommodating cavity 13 of position, dust is blocked in 1 outside of sealing element；Along with two of the second sealing 112 and third sealing 113
The effect of main lip can greatly reinforce degree of protection.
In use, sealing rubber ring is sleeved on inside motor-shaft extending face fixing groove 21, it is close to 21 inner wall of fixing groove, in groove
Inner wall coated with glue water can prevent sealing rubber ring from rotating with motor shaft.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of sealing structure, the sealing element (1) including installation by adhering at position to be sealed, it is characterised in that: the sealing
It is disposed at least one sealing (11) along dust approach axis on part (1) and drive member contacts face, all is described close
Envelope portion (11) is connected on dynamic component surface, and is had between the two neighboring sealing (11) to accommodate dust, oil
Dirty and water groove (12).
2. sealing structure according to claim 1, it is characterised in that: the quantity of the sealing (11) is three, successively
Respectively the first sealing (111), the second sealing (112) and third sealing (113).
3. sealing structure according to claim 2, it is characterised in that: the sealing element (1) is hollow structure, and inside has
Accommodating cavity (13) offers in the groove (12) between first sealing (111) and second sealing (112)
What is be connected to the accommodating cavity (13) runs through opening (14).
4. sealing structure according to claim 2, it is characterised in that: first sealing (111) and the third are close
It is linear sealing structure between envelope portion (113) and dynamic component surface.
5. sealing structure according to claim 2, it is characterised in that: second sealing (112) and dynamic component surface
Between be surface seal structure.
6. sealing structure according to claim 1, it is characterised in that: the sealing element (1) is annular seal cushion rubber, institute
Sealing (11) is stated to be arranged on the inner periphery of the sealing rubber ring.
7. sealing structure according to claim 6, it is characterised in that: all sealings (11) are along the sealant
The axial setting of circle.
8. sealing structure according to claim 2, it is characterised in that: be located at first sealing (111) and described the
The groove (12) section between two sealings (112) is triangle.
9. sealing structure according to claim 2, it is characterised in that: be located at second sealing (112) and described the
The groove (12) section between three sealings (113) is curved arc shape.
10. a kind of shaft sealer, it is characterised in that: including ontology (2) and shaft (3), shaft (3) one end rotation setting
In the ontology (2), the other end stretches out the ontology (2) outside, is provided on the axle stretch end face of the ontology (2) for accommodating
The fixing groove (21) of sealing structure as described in claim 1-9 is any.
11. shaft sealer according to claim 10, it is characterised in that: the sealing structure thickness and the fixing groove
(21) depth is identical.
12. a kind of motor, it is characterised in that: including shaft sealer as described in claim 10 or 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079827.0A CN109245394A (en) | 2018-09-14 | 2018-09-14 | Sealing structure, shaft sealer and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811079827.0A CN109245394A (en) | 2018-09-14 | 2018-09-14 | Sealing structure, shaft sealer and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109245394A true CN109245394A (en) | 2019-01-18 |
Family
ID=65058576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811079827.0A Pending CN109245394A (en) | 2018-09-14 | 2018-09-14 | Sealing structure, shaft sealer and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109245394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021056902A1 (en) * | 2019-09-26 | 2021-04-01 | 广东威灵电机制造有限公司 | Electric motor and household electrical appliance |
-
2018
- 2018-09-14 CN CN201811079827.0A patent/CN109245394A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021056902A1 (en) * | 2019-09-26 | 2021-04-01 | 广东威灵电机制造有限公司 | Electric motor and household electrical appliance |
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