CN207069753U - A kind of sealing structure of commercial motor - Google Patents
A kind of sealing structure of commercial motor Download PDFInfo
- Publication number
- CN207069753U CN207069753U CN201720684475.6U CN201720684475U CN207069753U CN 207069753 U CN207069753 U CN 207069753U CN 201720684475 U CN201720684475 U CN 201720684475U CN 207069753 U CN207069753 U CN 207069753U
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- labyrinth
- rotating shaft
- stator
- bearing bracket
- rotor
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a kind of sealing structure of commercial motor,Motor includes stator module,Rotor assembly,Casing,Rotating shaft and drive end bearing bracket and rear end cap,Drive end bearing bracket and rear end cap are provided with bearing chamber,Bearing is installed in bearing chamber,Rotating shaft support is on bearing,One end of rotating shaft is stretched out to form axle stretch end from the shaft extension hole of drive end bearing bracket,Labyrinth seal structure is provided between rotating shaft and drive end bearing bracket,Labyrinth seal structure includes labyrinth stator and labyrinth rotor,Labyrinth stator is arranged on drive end bearing bracket,Labyrinth rotor is arranged in rotating shaft,Labyrinth stator include bottom plate and the top surface from bottom plate protrude above several be spaced apart annular boss,Annular groove is formed between per two neighboring annular boss,Labyrinth rotor is provided with several annular lugs being spaced apart,Annular lug is nested in inside annular groove,By the gap that complications are formed between annular lug and annular boss,Convection body or sand and dust produce resistance and throttle effect and reach good sealing effectiveness.
Description
Technical field：
It the utility model is related to a kind of sealing structure of commercial motor.
Background technology：
The sealing of electric direct-drive commercial car at present is installed using outside framework oil seal structure in the output end of machine shaft
One outside framework oil seal, the lip and shaft contacts of outside framework oil seal realize waterproof and dustproof and sand control, under such sealing structure, carry
The water capacity of sand dust is easily attached to the lip of outside framework oil seal, with the distance travelled of electric commercial vehicle and the increase of time, skeleton oil
The easy premature abrasion failure of lip of envelope, so as to not reach sealing effectiveness.
The content of the invention：
The purpose of this utility model is to provide a kind of sealing structure of commercial motor, solves outside framework oil seal in the prior art
The easy premature abrasion failure of lip, so as to not reach the technical problem of sealing effectiveness.
The purpose of this utility model is achieved by following technical proposals.
A kind of sealing structure of commercial motor, described commercial motor include stator module, rotor assembly, casing, rotating shaft
With drive end bearing bracket and rear end cap, stator assembly and rotor assembly in casing, drive end bearing bracket and rear end cap are arranged on the two of casing
End, drive end bearing bracket and rear end cap are provided with bearing chamber, are provided with bearing in bearing chamber, rotating shaft support is on bearing, one end of rotating shaft
Stretch out to form axle stretch end from the shaft extension hole of drive end bearing bracket, it is characterised in that：Labyrinth seal knot is provided between the rotating shaft and drive end bearing bracket
Structure, the labyrinth seal structure include labyrinth stator and labyrinth rotor, and the labyrinth stator is arranged on drive end bearing bracket, the labyrinth
Rotor be arranged on rotating shaft on, the labyrinth stator include bottom plate and the top surface from bottom plate protrude above several be spaced apart annular
Boss, often forms annular groove between two neighboring annular boss, the labyrinth rotor is provided with several annulars being spaced apart
Projection, annular lug are nested in inside annular groove.
Rotating shaft described above is provided with a step, and the labyrinth rotor bearing is provided with spiral shell on step in the rotating shaft
Mother, it is threadedly coupled between nut and rotating shaft, the nut is located above the rotor of labyrinth, is entered labyrinth rotor using step and nut
Row axially position is locked in rotating shaft, and when the spindle is rotated, labyrinth rotor also follows rotating shaft to rotate together.
There is 1-2mm clearance distance at interface between several annular boss and several annular lugs described above.
The medial surface of stator outermost annular boss in labyrinth described above is provided with guide groove, is driven when rotating shaft rotates
Labyrinth rotor rotates, and makes to produce air-flow between labyrinth rotor and labyrinth stator, passes through the agitation outer layer ponding or sand of air-flow
Outside dirt discharge labyrinth seal structure.
Above-mentioned guide groove is helicla flute.
Outside framework oil seal is installed, the outside framework oil seal is located at drive end bearing bracket between rotating shaft described above and the shaft extension hole of drive end bearing bracket
Bearing chamber and labyrinth seal structure between.
Labyrinth stator described above by screw lock on drive end bearing bracket, the bottom plate of labyrinth stator be provided with several first
Mounting hole, drive end bearing bracket is provided with several second mounting holes corresponding with several first mounting holes of labyrinth stator, by screw
The mounting hole of precession first and the second mounting hole, make labyrinth stator be locked on drive end bearing bracket.
It is provided with the first sealing ring between the end face of labyrinth stator and drive end bearing bracket described above, the end face of drive end bearing bracket is provided with the
One seal groove, the first sealing ring are arranged in the first seal groove.
The second sealing ring is provided between the end face of labyrinth rotor and step described above, the end face of step is close provided with second
Sealing groove, the second sealing ring are arranged in the second seal groove.
Stator outermost annular boss in labyrinth described above is higher than the annular boss of internal layer.
The utility model compared with prior art, has the effect that：
1) the utility model includes stator module, rotor assembly, casing, rotating shaft and drive end bearing bracket and rear end cap, stator module
It is arranged on rotor assembly in casing, installed in the both ends of casing, drive end bearing bracket and rear end cap are provided with axle for drive end bearing bracket and rear end cap
Room is held, bearing is installed in bearing chamber, rotating shaft support on bearing, from the shaft extension hole of drive end bearing bracket stretch out to form axle by one end of rotating shaft
Stretch end, it is characterised in that：Labyrinth seal structure is provided between the rotating shaft and drive end bearing bracket, the labyrinth seal structure includes labyrinth
Stator and labyrinth rotor, the labyrinth stator are arranged on drive end bearing bracket, and the labyrinth rotor is arranged in rotating shaft, and the labyrinth is determined
Attached bag includes several that bottom plate and the top surface from bottom plate protrude above and is spaced apart annular boss, per two neighboring annular boss between
Annular groove is formed, the labyrinth rotor is provided with several annular lugs being spaced apart, and annular lug is nested in annular groove
Face, by forming the gap of complications between annular lug and annular boss, convection body or sand and dust produce resistance and throttle effect
And reach good sealing effectiveness；
2) medial surface of the outermost annular boss of labyrinth stator is provided with guide groove, and guide groove is helicla flute, works as rotating shaft
Drive labyrinth rotor to rotate during rotation, make to produce air-flow between labyrinth rotor and labyrinth stator, it is outer by the agitation of air-flow
Outside lamination water or sand and dust discharge labyrinth seal structure, ponding or sand and dust can be prevented to be deposited on labyrinth seal structure；
3) outside framework oil seal is installed, the outside framework oil seal is located at the bearing of drive end bearing bracket between rotating shaft and the shaft extension hole of drive end bearing bracket
Between room and labyrinth seal structure, outside framework oil seal good water-proof effect, increase motor seal effect；
4) for labyrinth stator by screw lock on drive end bearing bracket, the bottom plate of labyrinth stator is provided with several the first installations
Hole, drive end bearing bracket is provided with several second mounting holes corresponding with several first mounting holes of labyrinth stator, by screw precession
First mounting hole and the second mounting hole, make labyrinth stator be locked on drive end bearing bracket, and installation and removal are convenient, are conveniently replaceable skeleton oil
The replacing of the quick-wear parts such as envelope；
5) the first sealing ring is provided between labyrinth stator and the end face of drive end bearing bracket, the end face of drive end bearing bracket is provided with the first sealing
Groove, the first sealing ring are arranged in the first seal groove, increase sealing between labyrinth stator and the end face of drive end bearing bracket, sealing effectiveness
More preferably；
6) the second sealing ring is provided between labyrinth rotor and the end face of step, the end face of step is provided with the second seal groove,
Second sealing ring is arranged in the second seal groove, increases sealing between labyrinth rotor and the end face of step, and sealing effectiveness is more preferable.
Brief description of the drawings：
Fig. 1 is stereogram of the present utility model；
Fig. 2 is sectional perspective exploded view of the present utility model；
Fig. 3 is front view of the present utility model；
Fig. 4 is the sectional view of A-A in Fig. 3；
Fig. 5 is the partial enlarged drawing of B in Fig. 4；
Fig. 6 is the partial enlarged drawing of C in Fig. 5；
Fig. 7 is labyrinth seal structure exploded view of the present utility model；
Fig. 8 is labyrinth seal structure schematic diagram of the present utility model；
Fig. 9 is the sectional view of D-D in Fig. 8.
Embodiment：
The utility model is described in further detail below by specific embodiment and with reference to accompanying drawing.
Embodiment one：As shown in Figures 1 to 9, the present embodiment is a kind of sealing structure of commercial motor, described commercialization electricity
Machine 1 includes stator module 11, rotor assembly 12, casing 13, rotating shaft 14 and drive end bearing bracket 15 and rear end cap 16, stator module 11 and turns
Sub-component 12 is arranged in casing 13, and drive end bearing bracket 15 and rear end cap 16 are installed in the both ends of casing 13, drive end bearing bracket 15 and rear end cap
16 are provided with bearing chamber 17, and bearing 18 is provided with bearing chamber 17, and rotating shaft 14 is supported on bearing 18, and one end of rotating shaft 14 is in the past
The shaft extension hole 151 of end cap 15, which is stretched out, forms axle stretch end 141, it is characterised in that：Fan is provided between the rotating shaft 14 and drive end bearing bracket 15
Palace sealing structure 2, the labyrinth seal structure 2 include labyrinth stator 21 and labyrinth rotor 22, and the labyrinth stator 21 is arranged on
On drive end bearing bracket 15, the labyrinth rotor 22 is arranged in rotating shaft 14, and the labyrinth stator 21 includes bottom plate 211 and from bottom plate 211
Top surface protrude above several be spaced apart annular boss 212, form annular groove per between two neighboring annular boss 212
213, the labyrinth rotor 22 is provided with several annular lugs 221 being spaced apart, and annular lug 221 is nested in annular groove
213 the insides.
The rotating shaft 14 is provided with a step 142, and the labyrinth rotor 22 is supported on step 142, in the rotating shaft 14
Nut 3 is installed, is threadedly coupled between nut 3 and rotating shaft 14, the nut 3 is located at the top of labyrinth rotor 22, utilizes step 142
Labyrinth rotor 22 is carried out into axially position with nut 3 to be locked in rotating shaft 14, when rotating shaft 14 rotates, labyrinth rotor 22 also follows
Rotating shaft 14 rotates together, by forming the gap of complications between annular lug 221 and annular boss 212, to ponding or sand and dust
Produce resistance and throttle effect and reach good sealing effectiveness.
Interface between described several annular boss 212 and several annular lugs 221 have 1-2mm gap 4 away from
From.
The medial surface of the outermost annular boss 212 of labyrinth stator 21 is provided with guide groove 2121, when rotating shaft 14 is revolved
Drive labyrinth rotor 22 to rotate when turning, make to produce air-flow between labyrinth rotor 22 and labyrinth stator 21, made by the agitation of air-flow
Obtain outside outer layer ponding or sand and dust discharge labyrinth seal structure 2, ponding or sand and dust can be prevented to be deposited on labyrinth seal structure.
Guide groove 2121 is helicla flute.
Outside framework oil seal 5 is installed, the outside framework oil seal 5 is located between the rotating shaft 14 and the shaft extension hole 151 of drive end bearing bracket 15
Between the bearing chamber 17 and labyrinth seal structure 2 of drive end bearing bracket 15, the good water-proof effect of outside framework oil seal 5, increase motor seal effect.
The labyrinth stator 21 is locked on drive end bearing bracket 15 by screw 6, and the bottom plate 211 of labyrinth stator 21 is provided with some
Individual first mounting hole 2111, drive end bearing bracket 15 be provided with it is corresponding with several first mounting holes 2111 of labyrinth stator 21 several
Second mounting hole 152, by precession the first mounting hole 2111 of screw 6 and the second mounting hole 152, labyrinth stator 21 is set to be locked at front end
On lid 15, installation and removal are convenient, are conveniently replaceable the replacing of the grade quick-wear part of outside framework oil seal 5.
The first sealing ring 154 is provided between the end face of the labyrinth stator 21 and drive end bearing bracket 15, on the end face of drive end bearing bracket 15
Provided with the first seal groove 153, the first sealing ring 154 is arranged in the first seal groove 153, increase labyrinth stator 21 and drive end bearing bracket 15
End face between sealing, good sealing effect.
The second sealing ring 144 is provided between the end face of the labyrinth rotor 22 and step 142, is set on the end face of step 142
There is the second seal groove 143, the second sealing ring 144 is arranged in the second seal groove 143, increase labyrinth rotor 22 and step 142
Sealing between end face, good sealing effect.
The outermost annular boss 212 of labyrinth stator 21 is higher than the annular boss 212 of internal layer.
Above example is better embodiment of the invention, but the implementation of the present invention is not limited to this, and other are any
Without departing from the present invention Spirit Essence with made under principle change, modification, replacement, combine, simplification, be equivalent displacement side
Formula, it is included within protection scope of the present invention.
Claims (10)
1. a kind of sealing structure of commercial motor, described commercial motor (1) include stator module (11), rotor assembly (12),
Casing (13), rotating shaft (14) and drive end bearing bracket (15) and rear end cap (16), stator module (11) and rotor assembly (12) are arranged on machine
In shell (13), drive end bearing bracket (15) and rear end cap (16) are on the both ends of casing (13), drive end bearing bracket (15) and rear end cap (16)
Provided with bearing chamber (17), bearing chamber (17) is inner to be provided with bearing (18), and rotating shaft (14) is supported on bearing (18), rotating shaft (14)
One end is stretched out from the shaft extension hole (151) of drive end bearing bracket (15) forms axle stretch end (141), it is characterised in that：The rotating shaft (14) is with before
Labyrinth seal structure (2) is provided between end cap (15), the labyrinth seal structure (2) includes labyrinth stator (21) and labyrinth rotor
(22), the labyrinth stator (21) is arranged on drive end bearing bracket (15), and the labyrinth rotor (22) is arranged in rotating shaft (14), described
Labyrinth stator (21) include bottom plate (211) and the top surface from bottom plate (211) protrude above several be spaced apart annular boss
(212) annular groove (213), is formed between every two neighboring annular boss (212), the labyrinth rotor (22) is provided with several
The annular lug (221) being spaced apart, annular lug (221) are nested in inside annular groove (213).
A kind of 2. sealing structure of commercial motor according to claim 1, it is characterised in that：The rotating shaft (14) is provided with
One step (142), the labyrinth rotor (22) are supported on step (142), and nut (3), spiral shell are provided with the rotating shaft (14)
It is threadedly coupled between female (3) and rotating shaft (14), the nut (3) is located above labyrinth rotor (22), utilizes step (142) and spiral shell
Labyrinth rotor (22) progress axially position is locked in rotating shaft (14) by female (3), when rotating shaft (14) rotates, labyrinth rotor (22)
Also rotating shaft (14) is followed to rotate together.
A kind of 3. sealing structure of commercial motor according to claim 2, it is characterised in that：Several described annular boss
(212) there is 1-2mm gap (4) distance at the interface between several annular lugs (221).
A kind of 4. sealing structure of commercial motor according to claim 1 or 2 or 3, it is characterised in that：The labyrinth stator
(21) medial surface of outermost annular boss (212) is provided with guide groove (2121), and labyrinth is driven when rotating shaft (14) rotates
Rotor (22) rotates, and makes to produce air-flow between labyrinth rotor (22) and labyrinth stator (21), passes through the agitation outer layer of air-flow
Ponding or sand and dust discharge labyrinth seal structure (2) are outside.
A kind of 5. sealing structure of commercial motor according to claim 4, it is characterised in that：Guide groove (2121) is spiral
Groove.
A kind of 6. sealing structure of commercial motor according to claim 4, it is characterised in that：The rotating shaft (14) and front end
Outside framework oil seal (5) is installed between the shaft extension hole (151) of lid (15), the outside framework oil seal (5) is located at the bearing of drive end bearing bracket (15)
Between room (17) and labyrinth seal structure (2).
A kind of 7. sealing structure of commercial motor according to claim 6, it is characterised in that：The labyrinth stator (21) is logical
Cross screw (6) to be locked on drive end bearing bracket (15), the bottom plate (211) of labyrinth stator (21) is provided with several first mounting holes
(2111), drive end bearing bracket (15) be provided with it is corresponding with several first mounting holes (2111) of labyrinth stator (21) several second
Mounting hole (152), by screw (6) first mounting hole of precession (2111) and the second mounting hole (152), lock labyrinth stator (21)
On drive end bearing bracket (15).
A kind of 8. sealing structure of commercial motor according to claim 7, it is characterised in that：The labyrinth stator (21) with
The first sealing ring (154) is provided between the end face of drive end bearing bracket (15), the end face of drive end bearing bracket (15) is provided with the first seal groove
(153), it is inner to be arranged on the first seal groove (153) for the first sealing ring (154).
A kind of 9. sealing structure of commercial motor according to claim 8, it is characterised in that：The labyrinth rotor (22) with
The second sealing ring (144) is provided between the end face of step (142), the end face of step (142) is provided with the second seal groove (143),
It is inner that second sealing ring (144) is arranged on the second seal groove (143).
A kind of 10. sealing structure of commercial motor according to claim 9, it is characterised in that：The labyrinth stator (21)
Outermost annular boss (212) is higher than the annular boss (212) of internal layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684475.6U CN207069753U (en) | 2017-06-13 | 2017-06-13 | A kind of sealing structure of commercial motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720684475.6U CN207069753U (en) | 2017-06-13 | 2017-06-13 | A kind of sealing structure of commercial motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207069753U true CN207069753U (en) | 2018-03-02 |
Family
ID=61508415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720684475.6U Active CN207069753U (en) | 2017-06-13 | 2017-06-13 | A kind of sealing structure of commercial motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207069753U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474109A (en) * | 2019-01-11 | 2019-03-15 | 苏州优德通力科技有限公司 | A kind of closed type outer rotor motor structure |
| CN110566478A (en) * | 2019-09-09 | 2019-12-13 | 珠海格力电器股份有限公司 | fan and air conditioner |
| CN113738874A (en) * | 2021-09-08 | 2021-12-03 | 北方联合电力有限责任公司包头第三热电厂 | Non-filling shaft sealing device |
-
2017
- 2017-06-13 CN CN201720684475.6U patent/CN207069753U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474109A (en) * | 2019-01-11 | 2019-03-15 | 苏州优德通力科技有限公司 | A kind of closed type outer rotor motor structure |
| CN109474109B (en) * | 2019-01-11 | 2024-03-29 | 苏州优德通力科技有限公司 | Sealed external rotor motor structure |
| CN110566478A (en) * | 2019-09-09 | 2019-12-13 | 珠海格力电器股份有限公司 | fan and air conditioner |
| CN113738874A (en) * | 2021-09-08 | 2021-12-03 | 北方联合电力有限责任公司包头第三热电厂 | Non-filling shaft sealing device |
| CN113738874B (en) * | 2021-09-08 | 2024-01-05 | 北方联合电力有限责任公司包头第三热电厂 | Non-filling shaft sealing device |
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