CN209088723U - Motor gear hobbing shaft oil leakage prevention structure - Google Patents
Motor gear hobbing shaft oil leakage prevention structure Download PDFInfo
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- CN209088723U CN209088723U CN201822248693.2U CN201822248693U CN209088723U CN 209088723 U CN209088723 U CN 209088723U CN 201822248693 U CN201822248693 U CN 201822248693U CN 209088723 U CN209088723 U CN 209088723U
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- bearing chamber
- bearing
- motor shaft
- fixed
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Abstract
The purpose of the utility model is to provide a kind of a kind of motor gear hobbing shaft oil leakage prevention structures for being avoided that lubricating oil and flowing into inside motor along Motor Shaft helical teeth.To achieve the above object, the utility model adopts the following technical solution: a kind of motor gear hobbing shaft oil leakage prevention structure, including reduction gearbox and electric machine casing, the axis hole on end cap that Motor Shaft one end passes through electric machine casing extends in the cabinet of reduction gearbox, the end cap has the bearing chamber of positioning motor shaft, the bearing chamber is communicated with axis hole, and the bearing chamber includes one section and two sections of bearing chamber of bearing chamber, bearing is fixed in one section of the bearing chamber, oil sealing is fixed in two sections of the bearing chamber, the oil-sealing sleeve is on Motor Shaft, grease proofing axle sleeve is arranged on the Motor Shaft.
Description
Technical field
The utility model relates to decelerating motors, and in particular to a kind of motor gear hobbing shaft oil leakage prevention structure.
Background technique
At present the gear of overwhelming majority gear-boxes be all using helical teeth structure, motor forward or reverse during, profit
Lubricating oil can flow upward or downward along helical teeth.When lubricating oil flows downward, lubricating oil, which is easy to that motor can be leak into, leads to electricity
Machine failure.
Summary of the invention
The purpose of the utility model is to provide it is a kind of be avoided that lubricating oil along Motor Shaft helical teeth flow into motor inside one
Kind motor gear hobbing shaft oil leakage prevention structure.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of motor gear hobbing shaft oil leakage prevention structure,
Including reduction gearbox and electric machine casing, the axis hole on end cap that Motor Shaft one end passes through electric machine casing extends to the cabinet of reduction gearbox
Interior, the end cap has the bearing chamber of positioning motor shaft, and the bearing chamber is communicated with axis hole, and the bearing chamber includes bearing
One section of room and two sections of bearing chamber, two sections of the bearing chamber positioned at axis hole and one section of bearing chamber between, the shaft hole diameter is less than axis
Two sections of room internal diameter is held, two sections of internal diameters of bearing chamber are less than one section of internal diameter of bearing chamber, are fixed with bearing in one section of the bearing chamber, described
Oil sealing is fixed in two sections of bearing chamber, the oil-sealing sleeve is arranged with grease proofing axle sleeve, institute on Motor Shaft on the Motor Shaft
It states Motor Shaft and includes at least bearing fixed section, oil sealing fixed section, changeover portion, withdrawing section, cooperation section along axial, in the bearing
Circle is fixed with bearing fixed section, and the oil sealing is fixed with oil sealing fixed section, and the axial outer diameter everywhere of the changeover portion is identical, described to move back
It is formed with escape in knife section, is formed with helical teeth in the cooperation section to engage with helical gear, grease proofing axle sleeve one end close-fitting
In changeover portion, the grease proofing axle sleeve other end is set in withdrawing section.
The setting of oil sealing for preventing lubricating oil from entering inside motor, the setting of grease proofing axle sleeve for prevent lubricating oil along
Motor Shaft helical teeth is flowed to motor private side.Above-mentioned setting is so that the utility model is avoided that lubricating oil along Motor Shaft helical teeth
It flows into inside motor.
Preferably, described grease proofing axle sleeve one end extends in the axis hole of end cap.
Preferably, the described one end of grease proofing axle sleeve far from end cap extends to outer circumferential to be formed with annular retaining ring.When
Motor Shaft is rotated to side, so that lubricating oil is moved between grease proofing axle sleeve and Motor Shaft withdrawing section along Motor Shaft helical teeth
Afterwards, Motor Shaft is rotated to the other side, so that lubricating oil can move outward along grease proofing sleeve lining, so that lubricating oil can move
It moves to annular retaining ring, subsequent lubricating oil can be thrown toward peripheral side, so that lubricating oil is far from Motor Shaft.
The utility model has the advantages that be avoided that lubricating oil flows into inside motor along Motor Shaft helical teeth.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
Specific embodiment
The utility model is further described below according to the drawings and specific embodiments.
As shown in Figure 1, a kind of motor gear hobbing shaft oil leakage prevention structure of the utility model, including reduction gearbox and motor casing
Body, the axis hole 21 on end cap 2 that 1 one end of Motor Shaft passes through electric machine casing 9 extend in the cabinet 8 of reduction gearbox, and end cap 2 has
The bearing chamber of positioning motor shaft, bearing chamber are communicated with axis hole 21, and bearing chamber includes one section 22 of bearing chamber and two sections of bearing chamber
23, two section 23 of bearing chamber between axis hole 21 and one section 22 of bearing chamber, 21 internal diameter of axis hole be less than two section of 23 internal diameter of bearing chamber, axis
It holds two section 23 of room internal diameter and is less than one section of 22 internal diameter of bearing chamber, bearing 3 is fixed in one section 22 of bearing chamber, is consolidated in two section 23 of bearing chamber
Surely have oil sealing 4,4 sets of oil sealing on Motor Shaft 1, are arranged with grease proofing axle sleeve 5 on Motor Shaft 1, Motor Shaft 1 along axial direction at least
Including bearing fixed section 11, oil sealing fixed section 12, changeover portion 13, withdrawing section 14, cooperation section 15,3 inner ring of bearing is fixed with bearing
Section 12 is fixed, and oil sealing 4 and oil sealing fixed section 12 are fixed, and the axial outer diameter everywhere of changeover portion 13 is identical, is formed with and moves back in withdrawing section 14
Cutter groove cooperates and is formed with helical teeth in section 15 to engage with helical gear, and grease proofing 5 one end close-fitting of axle sleeve is in changeover portion 13, grease proofing axle sleeve 5
The other end is set in withdrawing section 14.Grease proofing 5 one end of axle sleeve extends in the axis hole 21 of end cap 2, and grease proofing axle sleeve 5 is far from end cap 2
One end to outer circumferential extend to be formed with annular retaining ring 51.
When Motor Shaft is rotated to side, lubricating oil can be moved to grease proofing axle sleeve along Motor Shaft helical teeth and move back with Motor Shaft
Between knife section, since grease proofing axle sleeve close-fitting is on the changeover portion of Motor Shaft, lubricating oil cannot be further continued for along Motor Shaft to
It is mobile inside motor；When Motor Shaft is rotated to the other side, lubricating oil can move outward along grease proofing sleeve lining, so that profit
Lubricating oil can be moved on annular retaining ring, and subsequent lubricating oil can be thrown toward peripheral side, so that lubricating oil is far from Motor Shaft.Wherein,
The setting of oil sealing is for preventing oil from entering inside motor.
The utility model has the advantages that be avoided that lubricating oil flows into inside motor along Motor Shaft helical teeth.
Claims (3)
1. a kind of motor gear hobbing shaft oil leakage prevention structure, it is characterised in that including reduction gearbox and electric machine casing, Motor Shaft one end
It is extended in the cabinet of reduction gearbox by the axis hole on the end cap of electric machine casing, the end cap has the bearing of positioning motor shaft
Room, the bearing chamber are communicated with axis hole, and the bearing chamber includes one section and two sections of bearing chamber of bearing chamber, two sections of the bearing chamber
Between axis hole and one section of bearing chamber, the shaft hole diameter is less than two sections of internal diameters of bearing chamber, and two sections of internal diameters of bearing chamber are less than axis
One section of room internal diameter is held, bearing is fixed in one section of the bearing chamber, oil sealing, the oil-sealing sleeve are fixed in two sections of the bearing chamber
On Motor Shaft, grease proofing axle sleeve is arranged on the Motor Shaft, the Motor Shaft is fixed along axial direction including at least bearing
Section, oil sealing fixed section, changeover portion, withdrawing section, cooperation section, the bearing inner race are fixed with bearing fixed section, the oil sealing and oil
Envelope fixed section is fixed, and the axial outer diameter everywhere of the changeover portion is identical, is formed with escape in the withdrawing section, in the cooperation section
Helical teeth is formed with to engage with helical gear, grease proofing axle sleeve one end close-fitting is arranged in changeover portion, the grease proofing axle sleeve other end
In withdrawing section.
2. motor gear hobbing shaft oil leakage prevention structure according to claim 1, it is characterised in that prolong described grease proofing axle sleeve one end
It extends in the axis hole of end cap.
3. motor gear hobbing shaft oil leakage prevention structure according to claim 1, it is characterised in that the grease proofing axle sleeve is far from end
One end of lid extends to outer circumferential to be formed with annular retaining ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248693.2U CN209088723U (en) | 2018-12-29 | 2018-12-29 | Motor gear hobbing shaft oil leakage prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248693.2U CN209088723U (en) | 2018-12-29 | 2018-12-29 | Motor gear hobbing shaft oil leakage prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209088723U true CN209088723U (en) | 2019-07-09 |
Family
ID=67127693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822248693.2U Active CN209088723U (en) | 2018-12-29 | 2018-12-29 | Motor gear hobbing shaft oil leakage prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209088723U (en) |
-
2018
- 2018-12-29 CN CN201822248693.2U patent/CN209088723U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |