CN105889583A - Hub unit - Google Patents
Hub unit Download PDFInfo
- Publication number
- CN105889583A CN105889583A CN201610341246.4A CN201610341246A CN105889583A CN 105889583 A CN105889583 A CN 105889583A CN 201610341246 A CN201610341246 A CN 201610341246A CN 105889583 A CN105889583 A CN 105889583A
- Authority
- CN
- China
- Prior art keywords
- hub
- spool
- valve body
- wheel hub
- breathing
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B7/00—Wheel cover discs, rings, or the like, for ornamenting, protecting, venting, or obscuring, wholly or in part, the wheel body, rim, hub, or tyre sidewall, e.g. wheel cover discs, wheel cover discs with cooling fins
- B60B7/0013—Hub caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/044—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with more than one spring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a hub unit which comprises a hub body and a hub end cover, wherein the hub body is fixedly connected with the hub end cover to form a hub chamber; a breathing safety valve is arranged on the inner wall of the hub end cover, and an atmosphere through hole is formed in the hub end cover. According to the invention, the breathing safety valve is combined with the hub, and by adopting a pressure dredging manner, air pressure in the hub is always kept in a set scope, thus improving the use conditions of sealing elements in the hub chamber; and compared with a manner of purely increasing the compression resistance of the sealing elements, the long-period sealing performance of the hub unit is greatly improved, and the hub unit can be widely applied to the fields of commercial vehicles including trucks and passenger cars.
Description
Technical field
The present invention relates to vehicle hub technical field, particularly relate to a kind of for the commercial car such as truck, passenger vehicle
Hub.
Background technology
In the commercial car such as truck, passenger vehicle field, the lubricating system of hub is divided into oil lubrication and grease lubrication two
Kind, but no matter which kind of lubricating system, at a high speed or under heavy duty environment, the friction of its bearing and making by oneself
The heat that dynamic device passes over can make the temperature and pressure in wheel hub cavity raise.At present, hub is close
Envelope element uses oil sealing and O RunddichtringO mostly, in the case of in wheel hub cavity, temperature, pressure raises, as
The oil sealing that movable sealing uses, its lip is often difficult to bear this pressure, in the course of time, it may appear that larger amplitude
The improper deformation of degree, thus cause oil leakage phenomenon to occur.In order to solve this problem, traditional way is
Use enhancing oil sealing compression resistance to prevent leakage of oil, and the effect of this method is unsatisfactory.
Summary of the invention
The technical problem to be solved is to provide a kind of hub, to improve wheel hub cavity internal gas pressure
Impact on seal, the mode dredged with pressure improves the sealing property of hub.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of hub, including:
Hub body and wheel hub end housing, described hub body and described wheel hub end housing are fixed together formation wheel hub
Chamber；Being provided with breathing safety valve on the inwall of described wheel hub end housing, described wheel hub end housing is provided with big vent hole.
Wherein, described breathing safety valve includes: valve body and body cap, and described valve body is fixed on described hub end
On the inwall of lid, described body cap is connected with described valve body screw thread；Spool and cartridge cover, described spool runs through
The installing hole of described valve body, described spool and described valve body have the seal face mutually reclined, described spool
Inside being provided with expiration spring installation room, described cartridge cover is threadeded with the atmosphere end of described spool；Expiration spring
And valve ball, described expiration spring and described valve ball are installed in described expiration spring installation room；Air-breathing spring,
Described air-breathing spring is arranged between described spool and described body cap and is positioned at air-breathing spring installation room；Institute
State and there is between spool and the installing hole of described valve body the ebb interval excessively communicated with air；The sidewall of described spool
On offer spool passage, the connection of described spool passage is described crosses ebb interval and described expiration spring is installed
Room；The wheel hub cavity end of described spool offers exhaling hole, and described exhaling hole connects described expiration spring installation room
With described air-breathing spring installation room；Offer on described valve body and offer on valve body passage and/or described body cap
Body cap passage, described valve body passage and described body cap passage is had all to connect described air-breathing spring peace
Dress room and described wheel hub cavity.
Wherein, it is provided with sealing ring between described valve body and described wheel hub end housing.
Wherein, at described seal face, described spool or described valve body are provided with sealing ring.
After have employed technique scheme, the invention has the beneficial effects as follows:
1) owing to being provided with breathing safety valve on wheel hub end housing, when wheel hub cavity internal gas pressure reaches specified expiratory pressure
During power, safety valve is opened, and gases at high pressure are exhaled to air from wheel hub cavity, make wheel hub cavity internal gas pressure and air
Equilibrium establishment, until less than specified breath pressure, safety valve cuts out；When wheel hub cavity temperature reduces, air
When pressure is higher than specified pressure of inspiration(Pi), safety valve opens again, now safety valve from air to wheel hub cavity air-breathing,
Wheel hub cavity pressure and air is made to set up new balance.The mode that this pressure is dredged, makes wheel hub cavity internal gas pressure
All the time it is within the scope of a setting, thus improves the use condition of wheel hub cavity inner seal liner, improve it
Long term seal performance.
2) due to expiration spring and the effect of air-breathing spring, arranged at safety valve is breathed in normally off, thus extraneous
Muddy water is not easily accessible in wheel hub cavity.
3) owing to being provided with sealing ring between described valve body and described wheel hub end housing, described valve body and described spool
Also be provided with sealing ring at seal face, enhance safety valve under normal conditions with the sealing property under duty.
4) being threaded due to valve body and body cap, spool and cartridge cover are threaded, by screwing valve
Body lid and cartridge cover can regulate the specified pressure of inspiration(Pi) set by air-breathing spring and expiration spring and specified expiration
Pressure.
Accompanying drawing explanation
Fig. 1 is the longitudinal sectional view of a kind of hub；
Fig. 2 is the enlarged drawing breathing safety valve in Fig. 1；
In figure: 100-hub body, 200-wheel hub end housing, the big vent hole of 201-, 300-breathes safety valve,
301-valve body, 302-body cap, 303-spool, 304-cartridge cover, 305-expiration spring, 306-valve ball, 307-
Air-breathing spring, 308-sealing ring, 309-sealing ring, 310-spool passage, 311-exhaling hole, 312-valve
Body passage, 313-body cap passage, A-crosses ebb interval, B-expiration spring installation room, C-air-breathing spring
Installation room, D-wheel hub cavity, E-seal face.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As Fig. 1 and Fig. 2 jointly shown in, a kind of hub, hub body 100 and wheel hub end housing 200 are solid
Surely it is joined together to form wheel hub cavity D, the parts such as rolling bearing, wheel hub end housing 200 are installed in wheel hub cavity D
Inwall on threaded have breathing safety valve 300, wheel hub end housing 200 is provided with big vent hole 201, is used for
Communicate with air.
Fig. 2 shows the detailed construction breathing safety valve 300.Valve body 301 is threadingly attached to hub end
On the inwall of lid 200, between valve body 301 and wheel hub end housing 200, it is provided with sealing ring 308.Body cap 302 with
Valve body 301 is threaded, and spool 303 runs through the installing hole of valve body 301, spool 303 and valve body 302 to be had
Having the seal face E mutually reclined, at seal face E, spool 303 is provided with sealing ring 309, seals
Circle 309 can also be on valve body 301, when spool 303 and valve body 301 disengage at seal face E
Time, formed and connected ebb interval A and the flow channels of air-breathing spring installation room C.It is provided with in spool 303 and exhales
Air spring installation room B, cartridge cover 304 is threadeded with the atmosphere end of spool 303.Expiration spring 305 and valve
Ball 306 is installed in expiration spring installation room B.Air-breathing spring 307 is arranged at spool 303 and body cap 304
Between and be positioned at air-breathing spring installation room C.
There is between the outer peripheral face of spool 303 and the inner peripheral surface of the installing hole of valve body 301 mistake communicated with air
Ebb interval A, the sidewall of spool 303 offers spool passage 310, and spool passage 310 connected stream
Gap A and expiration spring installation room B, the wheel hub cavity end of spool 303 offers exhaling hole 311, exhaling hole 311
Connection expiration spring installation room B and air-breathing spring installation room C, valve body 301 offers valve body passage 312,
Body cap passage 313, valve body passage 312 and body cap passage 313 is offered equal on body cap 302
Connection air-breathing spring installation room C and wheel hub cavity D, the purpose both arranging passage is to make ventilation more
Unobstructed.
Operation principle is as follows:
Exhale: in wheel hub cavity D, raise (higher than external pressure) with temperature, pressure, reach specified expiratory pressure
Power；Gases at high pressure enter air-breathing spring from wheel hub cavity D through valve body passage 312 and body cap passage 313
Installation room C, and valve ball 306 is backed down by exhaling hole 311 and compresses expiration spring 305 (now sealed end
Face D is in sealing state), gases at high pressure enter expiration spring installation room B, then through spool passage 310
Breathe out under natural environment after crossing ebb interval A, it is achieved expiration function.Expiration terminates, and all parts are being exhaled
Air spring 305 effect is lower recovers nature normality.
Air-breathing: reduce (less than external pressure) with temperature, pressure in wheel hub cavity D, reach specified pressure of inspiration(Pi)
Time, extraneous gas enters from crossing ebb interval A, and spool 303 air-breathing spring 307 is promoted to the right by gas simultaneously
(now valve ball 306 is in impaction state), now seal face E departs from sealing state formation flow channels,
Enter air-breathing spring installation room C, then enter into wheel by valve body passage 312 and body cap passage 313
In the D of hub chamber.Air-breathing terminates, and all parts recover nature normality under air-breathing spring 307 pressure.
Breathing safety valve disclosed by the invention is not limited to above-mentioned concrete structure, and its core idea is breathing to be pacified
Full valve is combined with wheel hub, the mode dredged with pressure, makes wheel hub cavity internal gas pressure be in a model set all the time
Within enclosing, thus improve the use condition of wheel hub cavity inner seal liner, with simple raising seal resistance
Mode is compared, and substantially increases the long term seal performance of hub.
Claims (5)
1. a hub, including:
Hub body and wheel hub end housing, described hub body and described wheel hub end housing are fixed together formation
Wheel hub cavity；It is characterized in that,
Being provided with breathing safety valve on the inwall of described wheel hub end housing, described wheel hub end housing is provided with big vent hole.
2. hub as claimed in claim 1, it is characterised in that described breathing safety valve includes:
Valve body and body cap, described valve body is fixed on the inwall of described wheel hub end housing, described body cap and institute
State valve body screw thread to connect；
Spool and cartridge cover, described spool runs through the installing hole of described valve body, described spool and described valve body tool
Having the seal face mutually reclined, be provided with expiration spring installation room in described spool, described cartridge cover is with described
The atmosphere end of spool is threaded；
Expiration spring and valve ball, described expiration spring and described valve ball are installed in described expiration spring installation room；
Air-breathing spring, described air-breathing spring is arranged between described spool and described body cap and is positioned at air-breathing bullet
In spring installation room；
There is between described spool and the installing hole of described valve body the ebb interval excessively communicated with air；
Offering spool passage on the sidewall of described spool, the connection of described spool passage is described crosses ebb interval
With described expiration spring installation room；
The wheel hub cavity end of described spool offers exhaling hole, and described exhaling hole connects described expiration spring installation room
With described air-breathing spring installation room；
Offer on described valve body and on valve body passage and/or described body cap, offer body cap passage, institute
State valve body passage and all connect described air-breathing spring installation room and described wheel hub cavity with described body cap passage.
3. hub as claimed in claim 2, it is characterised in that described valve body and described wheel hub end housing
Between be provided with sealing ring.
4. hub as claimed in claim 2 or claim 3, it is characterised in that at described seal face,
Described spool or described valve body are provided with sealing ring.
5. hub as claimed in claim 2, it is characterised in that described valve body and described wheel hub end housing
Inner thread connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341246.4A CN105889583A (en) | 2016-05-19 | 2016-05-19 | Hub unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610341246.4A CN105889583A (en) | 2016-05-19 | 2016-05-19 | Hub unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889583A true CN105889583A (en) | 2016-08-24 |
Family
ID=56718024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610341246.4A Pending CN105889583A (en) | 2016-05-19 | 2016-05-19 | Hub unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206925A (en) * | 2019-06-27 | 2019-09-06 | 无锡明诚汽车部件有限公司 | A kind of respiratory pressure valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752746A (en) * | 1995-12-15 | 1998-05-19 | Stemco Inc | Hubcap with vented closure |
| US5860708A (en) * | 1997-07-11 | 1999-01-19 | Stemco Inc | Contaminant excluding hubcap vent plug |
| CN2367853Y (en) * | 1999-04-08 | 2000-03-08 | 阎崇军 | Double-way safety valve |
| CN1920361A (en) * | 2005-08-26 | 2007-02-28 | 黄腾文 | Bidirectional non-return valve |
| US20140209601A1 (en) * | 2013-01-30 | 2014-07-31 | Agm Container Controls, Inc. | Breather Valve Assemblies |
| CN205781144U (en) * | 2016-05-19 | 2016-12-07 | 山东浩信机械有限公司 | Hub |
-
2016
- 2016-05-19 CN CN201610341246.4A patent/CN105889583A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5752746A (en) * | 1995-12-15 | 1998-05-19 | Stemco Inc | Hubcap with vented closure |
| US5860708A (en) * | 1997-07-11 | 1999-01-19 | Stemco Inc | Contaminant excluding hubcap vent plug |
| CN2367853Y (en) * | 1999-04-08 | 2000-03-08 | 阎崇军 | Double-way safety valve |
| CN1920361A (en) * | 2005-08-26 | 2007-02-28 | 黄腾文 | Bidirectional non-return valve |
| US20140209601A1 (en) * | 2013-01-30 | 2014-07-31 | Agm Container Controls, Inc. | Breather Valve Assemblies |
| CN205781144U (en) * | 2016-05-19 | 2016-12-07 | 山东浩信机械有限公司 | Hub |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206925A (en) * | 2019-06-27 | 2019-09-06 | 无锡明诚汽车部件有限公司 | A kind of respiratory pressure valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160824 |
|
| RJ01 | Rejection of invention patent application after publication |