CN102315717A - Automatic constraint shaft seal structure of electromotor - Google Patents
Automatic constraint shaft seal structure of electromotor Download PDFInfo
- Publication number
- CN102315717A CN102315717A CN2010102119483A CN201010211948A CN102315717A CN 102315717 A CN102315717 A CN 102315717A CN 2010102119483 A CN2010102119483 A CN 2010102119483A CN 201010211948 A CN201010211948 A CN 201010211948A CN 102315717 A CN102315717 A CN 102315717A
- Authority
- CN
- China
- Prior art keywords
- shaft
- seal structure
- ring
- motor shaft
- shaft seal
- 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
Images
Landscapes
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses an automatic constraint shaft seal structure of an electromotor, which comprises a fixed ring, a compression spring, a sliding sleeve, a O-shaped seal ring, a shaft sleeve, a seal ring, a seal ring and an external oil sealing cap which are sequentially sleeved on a motor shaft from right to left, wherein the fixed ring is fixedly connected to the motor shaft, the O-shaped seal ring is embedded into a cut at the right side of an inner hole of the shaft sleeve to form a radial shaft seal, the seal ring is embedded in a cut at the left side of the inner hole of the shaft sleeve, and the seal ring is embedded in a cut of an inner hole of the external oil sealing cap; the seal rings embedded in the shaft sleeve are in contact with the seal ring embedded in the external oil sealing cap to form an axial shaft seal structure; the outer wall at the left end of the sliding sleeve are in clearance fit between the inner hole of the cut at the right side of the shaft sleeve, and the inner hole of the cut at the right side of the shaft sleeve is in clearance fit with the outer wall of the motor shaft; and the inner hole of the shaft sleeve is in clearance fit with the outer wall of the motor shaft. According to the invention, the O-shaped seal ring and the motor shaft as well as the sealing ring and the sealing ring are always in a tightly fit state, and the sealing effect can be ensured for a long time.
Description
Technical field
The present invention relates to a kind of shaft seal structure, particularly a kind of shaft seal structure of motor motor shaft end.
Background technology
There is the motor output shaft end at motor left bearing place, and it is loaded greater than right bearing, so the caloric value of left bearing is bigger, must take certain cooling cooling provision to guarantee that left bearing is in normal operating state to left bearing.One of cooling cooling provision that motor is taked left bearing is that the end cover designs that left bearing is installed is become inner chamber sandwich, stores cold oil in the inner chamber interlayer, and this structure can play good cooling cooling effect to left bearing.Because store cold oil in the inner chamber interlayer, the motor shaft two ends of running through the inner chamber interlayer just are provided with shaft seal structure.The shaft seal structure of left end wants to stop that outer water and moisture get into the end cap inner chamber interlayer that left bearing is installed, and stops that again the cold oil in the end cap inner chamber interlayer flows out from the axle envelope.The left end shaft of prior art envelope is a kind of radial shaft seal structure, and this shaft seal structure cooperates with the electric electromechanics shaft seal with static oil sealing cap endoporus middle concave annular groove setting-in felt circle and forms.The radial shaft seal of prior art is simple in structure, can play to stop that outer water gets into the effect of the end cap inner chamber interlayer that left bearing is installed.But; The sealing property of radial shaft seal depends on felt circle and electric electromechanics arbor mated condition; In case its sealing property of felt circle wearing and tearing just descends, outer water and moisture will get into the end cap inner chamber interlayer that left bearing is installed, and the cold oil in the end cap inner chamber interlayer also can flow out from the axle envelope.
Summary of the invention
The present invention is directed to the deficiency of prior art, provide a kind of simple in structure, easy to manufacture, can make sealing ring and motor shaft keep the better seal mated condition, thereby guarantee the automatic takeup shaft seal structure of motor of sealing property for a long time.
The present invention realizes technical goal through following technical proposals.
The automatic takeup shaft seal structure of motor; It comprises with the outer oil sealing cap of electric electromechanics arbor matched in clearance, outer oil sealing cap endoporus seam in the shaft seal structure that constitutes of the sealing ring of setting-in; Its improvements are: said shaft seal structure is for tighten up the formula shaft seal structure automatically; It comprises retainer plate, compression spring, sliding sleeve, O-ring seals, axle sleeve, sealing ring, sealing ring and the outer oil sealing cap that is sleeved on successively from right to left on the motor shaft; Retainer plate is fixedly connected on the motor shaft, and the setting-in O-ring seals constitutes embedded sealing ring in radial shaft seal, the left side seam in the seam of axle sleeve endoporus right side; The axle sleeve inner seal ring contacts with outer oil sealing cap inner seal ring, constitutes the axial axis seal structure; Said sliding sleeve left end outer wall and axle sleeve right side seam endoporus matched in clearance, endoporus and motor shaft outer wall matched in clearance; Said axle sleeve endoporus and motor shaft outer wall matched in clearance.
The present invention compared with prior art has following good effect:
1. simple in structure, easy to manufacture;
2. adopt automatic takeup shaft seal structure, make to be in the tight fit state between O-ring seals and motor shaft, sealing ring and the sealing ring all the time, guarantee sealing effectiveness for a long time.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
Below according to accompanying drawing and combine embodiment that the present invention is described further.
The automatic takeup shaft seal structure of motor shown in the drawings; It comprises retainer plate 9, compression spring 5, sliding sleeve 4, O-ring seals 8, axle sleeve 3, sealing ring 2, sealing ring 1 and the outer oil sealing cap 7 that is sleeved on successively from right to left on the motor shaft 6; Retainer plate 9 is fixedly connected on the motor shaft 6; Embedded sealing ring 2 in 8 one-tenth radial shaft seals of setting-in O-ring seals, the left side seam in axle sleeve 3 endoporus right side seams, the sealing ring 1 of setting-in in the outer oil sealing cap 7 endoporus seams; Felt circle 2 contacts with felt circle 1, constitutes the axial axis seal structure; Said sliding sleeve 4 left end outer walls and axle sleeve 3 right side seam endoporus matched in clearance, endoporus and motor shaft 6 outer wall matched in clearance; Said axle sleeve 3 endoporus and motor shaft 6 outer wall matched in clearance.Under the effect of compression spring 5, sliding sleeve 4 slides to the right, compresses O-ring seals 8, makes O-ring seals 8 and motor shaft 6 be in the tight fit state all the time; Under the effect of compression spring 5; Axle sleeve 3 slides to the right; Compress sealing ring 2 and sealing ring 1, the axial axis envelope that makes sealing ring 2 and sealing ring 1 form is in the tight fit state all the time, thereby has guaranteed sealing effectiveness for a long time; Both stopped that outer water and moisture get into the end cap inner chamber interlayer that left bearing is installed, and stopped that again the cold oil in the end cap inner chamber interlayer flows out from the axle envelope.
Claims (1)
1. automatic takeup shaft seal structure of motor; It comprises with the outer oil sealing cap (7) of electric electromechanics arbor (6) matched in clearance, outer oil sealing cap (7) endoporus seam in the shaft seal structure that constitutes of the sealing ring (1) of setting-in; It is characterized in that: said shaft seal structure is for tighten up the formula shaft seal structure automatically; It comprises retainer plate (9), compression spring (5), sliding sleeve (4), O-ring seals (8), axle sleeve (3), sealing ring (2), sealing ring (1) and the outer oil sealing cap (7) that is sleeved on successively from right to left on the motor shaft (6); Retainer plate (9) is fixedly connected on the motor shaft (6), and setting-in O-ring seals (8) constitutes embedded sealing ring (2) in radial shaft seal, the left side seam in the seam of axle sleeve (3) endoporus right side; Said sealing ring (2) contacts with sealing ring (1), constitutes the axial axis seal structure; Said sliding sleeve (4) left end outer wall and axle sleeve (3) right side seam endoporus matched in clearance, endoporus and motor shaft (6) outer wall matched in clearance; Said axle sleeve (3) endoporus and motor shaft (6) outer wall matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102119483A CN102315717A (en) | 2010-06-29 | 2010-06-29 | Automatic constraint shaft seal structure of electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102119483A CN102315717A (en) | 2010-06-29 | 2010-06-29 | Automatic constraint shaft seal structure of electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102315717A true CN102315717A (en) | 2012-01-11 |
Family
ID=45428605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102119483A Pending CN102315717A (en) | 2010-06-29 | 2010-06-29 | Automatic constraint shaft seal structure of electromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102315717A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516107A (en) * | 2012-06-30 | 2014-01-15 | 洛阳嘉维轴承制造有限公司 | Method for sealing small-and-medium-size vertical motor bearing components |
| CN107947432A (en) * | 2017-12-14 | 2018-04-20 | 江苏世隆电机有限公司 | Ultra high efficiency permasyn morot adjustable shaft seal structure |
-
2010
- 2010-06-29 CN CN2010102119483A patent/CN102315717A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516107A (en) * | 2012-06-30 | 2014-01-15 | 洛阳嘉维轴承制造有限公司 | Method for sealing small-and-medium-size vertical motor bearing components |
| CN107947432A (en) * | 2017-12-14 | 2018-04-20 | 江苏世隆电机有限公司 | Ultra high efficiency permasyn morot adjustable shaft seal structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2007075781A3 (en) | Seal section oil seal for submersible pump assembly | |
| CN103415704A (en) | Scroll refrigeration compressor | |
| ATE532975T1 (en) | ROLLING BEARING WITH SHAFT BEARING SEAL | |
| TW200726036A (en) | Pivot-connection structure of motor rotor | |
| CN206174962U (en) | Be applied to disc cutter's novel pressure balance adjusting device | |
| TW200736505A (en) | Fan, motor and bearing structure thereof | |
| CN102315717A (en) | Automatic constraint shaft seal structure of electromotor | |
| CN201544345U (en) | Shaft end sealing structure and concrete mixer with shaft end sealing structure | |
| CN201774352U (en) | Motor shaft seal structure capable of being automatically tightened | |
| JPH10148192A (en) | Oil free screw compressor | |
| CN205383266U (en) | Dredge tooth sealing device | |
| CN208986731U (en) | A kind of underwater isolation motor | |
| CN206221516U (en) | A kind of self-lubricating plain bearing seat | |
| CN201774348U (en) | Adjustable shaft seal structure of electric motor | |
| CN103307281A (en) | Double end face sealing device | |
| CN203554145U (en) | Water-wading power-taking generator | |
| CN100543333C (en) | Protection sheet | |
| CN202381688U (en) | Sealing structure of drive shaft end | |
| CN202231533U (en) | Motor sealing structure of development machine | |
| CN205446716U (en) | Big marine motor combination formula shaft seal structure of moment of torsion | |
| CN101509458B (en) | Exempt-maintenance self-lubricating bearing apparatus of water turbine for cooling tower | |
| CN205356020U (en) | Automatic combination formula shaft seal structure that tightens up of motor | |
| CN106895152A (en) | High pulling torque marine service motor combined type shaft seal structure | |
| SG137826A1 (en) | Seal section for electrical submersible pump | |
| CN202789670U (en) | Mid-seal structure device of pump body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120111 |