CN101277045A - Water-proof hub - Google Patents
Water-proof hub Download PDFInfo
- Publication number
- CN101277045A CN101277045A CNA2007100912676A CN200710091267A CN101277045A CN 101277045 A CN101277045 A CN 101277045A CN A2007100912676 A CNA2007100912676 A CN A2007100912676A CN 200710091267 A CN200710091267 A CN 200710091267A CN 101277045 A CN101277045 A CN 101277045A
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- China
- Prior art keywords
- end cap
- right end
- pressure
- bearing
- proof
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Abstract
The present invention provides a water-proof wheel spider which relates to sealing and is mainly used for electric motor. The principal shaft traverses the central part of the casing. Two ends of the casing are sleeved on the left and the right end covers which are rotatablely assorted with the principle shaft through a support. The inner wall of the right end cover is provided with a sealing rubber tire. The right side of the sealing rubber tire is provided with an air tube which traverses the right tegmental wall. The middle part of the air tube is provided with a ventilation hole. The outer end of the air tube is fastened with a dust-proof cover. Two ends of the left and right end cap bearing are provided with a sealing ring. The sealing rubber tire is a hollow thin-wall annular body. When the temperature and pressure are increased at the inner part of the wheel spider, the gas of the sealing rubber tire is discharged through the ventilation hole, and the pressure intensity at the inner part of the wheel spider body is equal with the exterior air pressure. When the temperature and pressure are reduced at the inner part of the wheel spider, the volume of the sealing rubber tire expands. The gas enters through the ventilation hole and the pressure intensity at the inner part of the wheel spider increases until when the pressure intensity is equal with the exterior air pressure. In the whole circulation, the air pressure is realized with a dynamic balancing and the purpose of wheel spider water-proofing is obtained. The device can be widely applied for hub electric motor of the electric vehicle including vehicle.
Description
Technical field
A kind of relating to, seal the water-proof hub that is mainly used in motor.
Background technology
Existing wheel hub motor wheel hub adopts bearing seal, and its defective is, during increasing temperature and pressure, gas is discharged from the bearing sealed ring gap in the hub body, and from then on gas enter and bring into moisture again during decrease temperature and pressure, and therefore bearing seal lost efficacy.The sign motor opens circuit, Hall damages, bearing is unlubricated etc.
Summary of the invention
For overcoming the above-mentioned defective of prior art, the invention provides a kind of water-proof hub, the inner increasing temperature and pressure of this device, its pressure remains unchanged, thereby effective waterproof.
The present invention realizes that the technical scheme of above-mentioned purpose is: water-proof hub, and its main shaft passes from the housing middle part, housing two ends socket left end cap and right end cap, left end cap is rotatably assorted by right end cap bearing and main shaft by left end cap bearing, right end cap; The right end cap inwall is provided with the caulking gum tire, and caulking gum tire right side is provided with tracheae, and tracheae passes the right-hand member tegmental wall, and the tracheae middle part is provided with air vent hole, the fastening dust cap in tracheae outer end.Described left end cap bearing, right end cap bearing are sealed bearing, and both sides are provided with sealing ring; Described caulking gum tire is the hollow and thin-walled annular solid.Described dust cap is made of dustproof body, dustproof fiber and connection holes.
The present invention realize principle compared with prior art its beneficial technical effects be: water-proof hub, left and right sides end cap bearing is a sealed bearing, at normal temperatures and pressures, it is in sealing state.When machine operation, inner temperature is generally at 50 ℃～80 ℃, and temperature rising gas expands, and air pressure increases, and gas is discharged from air vent hole in the caulking gum tire, until equating with air pressure outside the wheel hub; When motor quits work, inner temperature falls back to normal temperature, contraction of gas, and the air inlet of caulking gum tire air vent hole, the compensation air pressure inside, air pressure inside equates with external pressure, whole circulation, air pressure is dynamic equilibrium.Because gas heating boosts and the circulation of decrease temperature and pressure is slow, and the caulking gum tyre sidewall is thin, and resistance is very little, and not to the bearing sealed ring build-up of pressure, sealing state does not have destroyed substantially, reaches effective waterproof purpose.
Fig. 1 is the main cross-sectional view of looking of the present invention;
Fig. 2 looks cross-sectional view for dust cap master of the present invention;
Fig. 3 is a tracheae cross section structure schematic diagram of the present invention;
Fig. 4 looks cross-sectional view for the present invention second example master;
Fig. 5 looks cross-sectional view for the present invention the 3rd example master;
Fig. 6 looks cross-sectional view for the dust cap second example master of the present invention.
In Fig. 1,2,3:
1-housing 2-air vent hole 3-dust cap
4-caulking gum tire 5-right end cap 6-right end cap bearing
7-main shaft 8-left end cap 9-left end cap bearing
The A-body B-dustproof fiber C-connection holes that prevents dust
D-tracheae E-air gap
In Fig. 4:
1-housing 2-air vent hole 3-dust cap
4-caulking gum tire 5-right end cap 6-right end cap bearing
7-main shaft 8-left end cap 9-left end cap bearing
In Fig. 5:
1-housing 2-right end cap 3-right end cap bearing
4-main shaft 5-left end cap 6-caulking gum tire
7-air vent hole 8-dust cap 9-left end cap bearing
The 10-axis hole
In Fig. 6:
The F-body G-connection holes that prevents dust
Embodiment
Referring to Fig. 1,2,3, water-proof hub, its main shaft 7 passes from housing 1 middle part, housing 1 two ends socket left end cap 8 and right end cap 5, left end cap 8 is rotatably assorted by right end cap bearing 6 and main shaft 7 by left end cap bearing 9, right end cap 5; Right end cap 5 inwalls are provided with caulking gum tire 4, and caulking gum tire 4 right sides are provided with tracheae D, and tracheae D passes from right end cap 5 walls, and tracheae D middle part is provided with air vent hole 2, the fastening dust cap 3 in tracheae D outer end; Described left end cap bearing 9 and right end cap bearing 6 both sides are provided with sealing ring; Described caulking gum tire 4 is the hollow and thin-walled annular solid.Described dust cap 3 is made of dustproof body A, dustproof fiber B and connection holes C; Described dustproof body A is metal or nonmetal structure; The circumferential uniform air gap E of described tracheae D.
Referring to Fig. 4,2 and 3, water-proof hub, its main shaft 7 passes from housing 1 middle part, housing 1 two ends socket left end cap 8 and right end cap 5, left end cap 8 is rotatably assorted by right end cap bearing 6 and main shaft 7 by left end cap bearing 9, right end cap 5; Right end cap 5 inwalls are provided with caulking gum tire 4, and caulking gum tire 4 right sides are provided with tracheae D, and tracheae D passes from right end cap 5 walls, and tracheae D middle part is provided with air vent hole 2, the fastening dust cap 3 in tracheae D outer end; Described left end cap bearing 9 and right end cap bearing 6 both sides are provided with sealing ring; Described caulking gum tire 4 is the hollow and thin-walled annular solid.Described dust cap 3 is made of dustproof body A, dustproof fiber B and connection holes C; Described dustproof body A is metal or nonmetal structure; The circumferential uniform air gap E of described tracheae D.
Referring to Fig. 5,2 and 3, water-proof hub, its main shaft 4 passes from housing 1 middle part, housing 1 two ends socket left end cap 5 and right end cap 2, left end cap 5 is rotatably assorted by right end cap bearing 3 and main shaft 4 by left end cap bearing 9, right end cap 2; Main shaft 4 is provided with caulking gum tire 6, and caulking gum tire 6 inboards are provided with tracheae D, tracheae D socket main shaft 4 axis holes 10, and tracheae D middle part is provided with air vent hole 7, the fastening dust cap 8 in tracheae D outer end; Described left end cap bearing 9 and right end cap bearing 3 both sides are provided with sealing ring; Described caulking gum tire 6 is the hollow and thin-walled annular solid.Described dust cap 8 is made of dustproof body A, dustproof fiber B and connection holes C; Described dustproof body A is metal or nonmetal structure; The circumferential uniform air gap E of described tracheae D.
Referring to Fig. 6, described dust cap can be dust cap second exemplary construction, and the dustproof body F of dust cap second example is the metal cavernous body, also can be nonmetal cavernous body, and connection holes G and tracheae connect firmly.
Described caulking gum tire material can be polyurethane, also can silica gel and other suitable material.
Described dust cap can omit.
Described caulking gum tire can annular solid also can triangle body, and other suitable body.
Described caulking gum tire can be located at inner other position of wheel hub.
Described left and right, inside and outside be to be the facility on the character express, it is not oppositely influenced enforcement of the present invention arbitrarily.
Claims (5)
1. water-proof hub, its main shaft passes from the housing middle part, housing two ends socket left end cap and right end cap, left end cap is rotatably assorted by right end cap bearing and main shaft by left end cap bearing, right end cap; The right end cap inwall is provided with the caulking gum tire, and caulking gum tire right side is provided with tracheae, and tracheae passes the right-hand member tegmental wall, and the tracheae middle part is provided with air vent hole, the fastening dust cap in tracheae outer end.
2. water-proof hub as claimed in claim 1 is characterized in that left end cap bearing and right end cap bearing are sealed bearing.
3. as claim 1,2 described water-proof hubs, it is characterized in that the caulking gum tire is the hollow and thin-walled annular solid.
4. as claim 1,2,3 described water-proof hubs, it is characterized in that dust cap is made of dustproof body, dustproof fiber and connection holes.
5. as claim 1,2,3,4 described water-proof hubs, its feature is metal or nonmetal cavernous structure at dustproof body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100912676A CN101277045A (en) | 2007-03-28 | 2007-03-28 | Water-proof hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100912676A CN101277045A (en) | 2007-03-28 | 2007-03-28 | Water-proof hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101277045A true CN101277045A (en) | 2008-10-01 |
Family
ID=39996138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100912676A Pending CN101277045A (en) | 2007-03-28 | 2007-03-28 | Water-proof hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101277045A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835147A (en) * | 2019-04-17 | 2020-10-27 | 山东交通学院 | Hub motor of electric automobile |
-
2007
- 2007-03-28 CN CNA2007100912676A patent/CN101277045A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835147A (en) * | 2019-04-17 | 2020-10-27 | 山东交通学院 | Hub motor of electric automobile |
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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 |
Open date: 20081001 |