CN1072381A - Rotary seal air chamber for inflation of tyre - Google Patents
Rotary seal air chamber for inflation of tyre Download PDFInfo
- Publication number
- CN1072381A CN1072381A CN 91110623 CN91110623A CN1072381A CN 1072381 A CN1072381 A CN 1072381A CN 91110623 CN91110623 CN 91110623 CN 91110623 A CN91110623 A CN 91110623A CN 1072381 A CN1072381 A CN 1072381A
- Authority
- CN
- China
- Prior art keywords
- seal
- semiaxis
- air chamber
- cartridge
- rotary 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
- 238000013022 venting Methods 0.000 claims description 4
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 2
- 238000012857 repacking Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 9
- 238000007599 discharging Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Abstract
The invention belongs to the improvement of air filling and releasing system for automobile tyres.It is characterized in that in floating former the having living space that is loaded between hub spindle and the semiaxis of whole rotary seal air chamber, thereby, install the present invention additional when the finished product vehicle, change very little to vehicle.Owing to adopted floating assembling structure, the concentricity between rotary seal chamber and the hub axle (or semiaxis) and the wear pattern of hub spindle bearing are irrelevant, thereby, the good seal performance of seal ring, long service life.Used seal ring is commercial, and cost is low, and quality is good.The present invention is simple in structure, finishing is convenient, is applicable to that new car installs additional, also is applicable to the used car repacking.
Description
The invention belongs to the improvement of vehicle tyre air-charging and air-discharging system.
In vehicle traveling process, because the continuous variation of pavement conditions (as highway, dirt road, Sha Lu, ice snow covered pavement and muddy road etc.) and usage condition (as load carrying ability size and speed of a motor vehicle speed etc.) has proposed different requirements to tire pressure.Therefore, need tire is constantly carried out pressure measurement, inflation and venting, adapt to the external condition that is changing, make automobile can keep good crossing ability, economy, safety and comfortable answering with the way that changes tire pressure.
The rotary seal air chamber that the automatic air-charging and air-discharging system of the tire of domestic and foreign current is used exists following shortcoming: (1) has brought two unfavorable factors because the rotary seal air chamber is installed between hub spindle and the wheel hub: the one, and mounting or dismounting upkeep operation difficulty; The 2nd, the linear velocity of seal ring is big, and the life-span is short.(2) seal ring be with the bolt of radial arrangement to the wheel hub, this has just influenced the concentricity between seal ring and the seal shaft, easily causes off-centre, causing the wearing and tearing aggravation, sealing property descends.(3) owing to be subjected to the influence in hub bearing gap, leak free poor reliability.(4) seal ring adopts traditional oil enveloping structure, withstand voltage low, life-span weak point; (5) the structure more complicated of rotary seal air chamber when entrucking is used, needs primary car structure is done bigger change, and assembling is also difficult.
The objective of the invention is the above-mentioned shortcoming of existing rotary seal air chamber is made improvements the rotary seal air chamber of developing a kind of simple in structure, good seal performance, the mounting or dismounting maintenance is convenient and need do very big change to ready-made automobile.
The object of the present invention is achieved like this: whole sealing rotation air chamber is installed between hub spindle (axle tube) and the semiaxis.Concrete measure is: be contained between hub spindle and the semiaxis seal cartridge (integral body or compound type) is floating, two ends seal with elastic sealing elements, and compress with locknut in the semiaxis terminal, jam nut locking.Locknut can link to each other with hub spindle with jam nut, and whole rotary seal air chamber and hub spindle are fixed, and also can link to each other with semiaxis, and rotary seal air chamber and semiaxis are fixed.
Advantage of the present invention is: (1) whole sealing rotation air chamber is installed in former the having living space between hub spindle and the semiaxis, thereby, when the present invention is used for the finished product vehicle, very little to the change of vehicle.(2) seal cartridge is floating is contained between hub spindle and the semiaxis, and the concentricity between rotary seal chamber and the hub spindle (or semiaxis) is not subjected to the influence of mounting torque and hub spindle wear-out of a bearing, thereby the concentricity height, good seal performance, long service life.(3) adopt commercial packing element, reliable in quality, low price.
Introduce embodiments of the invention in detail below in conjunction with accompanying drawing:
Fig. 1 is a structure diagram of the present invention.
Referring to Fig. 1, as seen from the figure, in the space between hub spindle (16) and semiaxis (15), at the external part of semiaxis (15), an empty cover seal cartridge (7), seal cartridge (7) can be integral type (as shown in FIG.), also can be divided into several sections vertically, be put together, become compound type.At one of seal cartridge (7) radially on the section, have two or four symmetrical each other air extractor vents (19), axial both sides at air extractor vent (19), have two circular grooves (18), respectively lay a seal ring (9) in two grooves, an elastic seal pad (13 and 14) respectively is equipped with at two ends in seal cartridge (7).The left side of elastic seal pad (13) is installed back-up ring (10), locknut (12) and jam nut (11) successively, with its locking, makes axially being fixed of seal cartridge (7).Between seal cartridge (7) and the semiaxis (15) and between seal cartridge (7) and the wheel hub (16), all leave diameter clearance, thereby seal cartridge (7) becomes floating dress state.When locknut (12) and jam nut (11) and hub spindle (16) fix, make whole sealed air chamber and hub spindle (16) when fixing, space between seal cartridge (7) and the hub spindle (16), rely on elastic seal pad (13 and 14) sealing, space between seal cartridge (7) and the semiaxis (15), rely on two seal rings (9) sealings, at this moment, seal ring (9) should be installed on the internal diameter of seal cartridge (7) (as shown); When locknut (12) and jam nut (11) and semiaxis (15) fix, make whole sealed air chamber and semiaxis (15) when fixing, space between seal cartridge (7) and the semiaxis (15) relies on elastic seal pad (13 and 14) sealing, space between seal cartridge and the wheel hub (16), rely on seal ring (9) sealing, at this moment, seal ring (9) should be installed on the external diameter of seal cartridge (7).On hub spindle (16), have air flue (17), one end of air flue (17) communicates with high pressure gas (or control gaseous), the hole of the other end on seal cartridge (7), communicate with the air flue (8) on the semiaxis (15), the end of air flue (8) is connected to tracheae (6), the other end of tracheae (6) is connected with gas-tpe fitting (3) on the tire (1), and tyre valve (4) is housed on the tracheae (6).High pressure gas (or control gaseous) can enter the inner tube of a tyre (1) through air flue (17), air flue (8) and tracheae (6), and rely on the keying of the whole passage of tyre valve (4) control.
Principle of work of the present invention is as follows: when chaufeur is operated, after tire being sent the instruction of detection, inflation or venting, high pressure gas (or control gaseous) enter seal cartridge (7) through air flue (17), and rely on envelope to seal the sealing function of (9) and gasket seal (13 and 14), make high pressure gas (or control gaseous) enter air flue (8), arrive tyre valve (4) through tracheae (6), tyre valve (4) is opened by gas pressure or is closed different valves (at this moment, locking-valve is opened), realize pressure measurement, inflation or venting work to tire.
Other part explanation in the accompanying drawing: 2 is wheel rim, and 5 is wheel hub.
Claims (3)
1, the rotary seal air chamber of a kind of motor tire pressure measurement, inflation and venting usefulness is characterized in that:
A. the rotary seal air chamber is made up of two seal rings (9) that are sleeved on elastic seal pad (14), seal cartridge (7), elastic seal pad (13), back-up ring (10), locknut (12), the jam nut (11) on the semiaxis (15) successively and be placed in last two circular grooves of seal cartridge (7) (18), between seal cartridge (7) and the hub spindle (16), all leave the gap between seal cartridge (7) and the semiaxis (15);
B. one of seal cartridge (7) is drilled with the pore (19) of two or four symmetric arrangement radially on the section, and respectively there is a circular groove (19) pore (19) both sides (axially), and circular groove (19) is opened on internal diameter or external diameter;
C. locknut (12) and jam nut (11) can be fixed into one with wheel hub (16), also can be fixed into one with semiaxis (15), when with hub spindle (16) when being fixed into one, two seal rings (9) are placed on the internal diameter of seal cartridge (7), when with semiaxis (15) when being fixed into one, two seal rings (9) should be placed on the external diameter of seal cartridge (7).
2,, it is characterized in that seal ring (9) is commercial as the said rotary seal air chamber of claim 1.
3,, it is characterized in that seal cartridge (7) can be integral type, also can be compound type as the said rotary seal air chamber of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110623 CN1072381A (en) | 1991-11-15 | 1991-11-15 | Rotary seal air chamber for inflation of tyre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91110623 CN1072381A (en) | 1991-11-15 | 1991-11-15 | Rotary seal air chamber for inflation of tyre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1072381A true CN1072381A (en) | 1993-05-26 |
Family
ID=4910195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91110623 Pending CN1072381A (en) | 1991-11-15 | 1991-11-15 | Rotary seal air chamber for inflation of tyre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1072381A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069680A (en) * | 2011-01-06 | 2011-05-25 | 中国重汽集团济南动力有限公司 | Bridge for central tire inflation/deflation structure |
| CN106183657A (en) * | 2016-07-20 | 2016-12-07 | 东风汽车公司 | A device for transferring air flow between rotating and non-rotating parts |
| CN109532347A (en) * | 2019-01-16 | 2019-03-29 | 镇江神行太保科技有限公司 | One kind being used for card car drive shaft inflation system gas channels and sealing structure |
| CN110154653A (en) * | 2019-05-31 | 2019-08-23 | 吉林大学 | A vehicle tire automatic inflation and deflation device and its control method |
| CN110997354A (en) * | 2017-07-27 | 2020-04-10 | 特雷勒堡车轮系统意大利股份公司 | Rotary joint and pressure regulating system for a tyre |
-
1991
- 1991-11-15 CN CN 91110623 patent/CN1072381A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069680A (en) * | 2011-01-06 | 2011-05-25 | 中国重汽集团济南动力有限公司 | Bridge for central tire inflation/deflation structure |
| CN106183657A (en) * | 2016-07-20 | 2016-12-07 | 东风汽车公司 | A device for transferring air flow between rotating and non-rotating parts |
| CN106183657B (en) * | 2016-07-20 | 2018-06-22 | 东风汽车公司 | Device for realizing transmission of airflow between rotating part and non-rotating part |
| CN110997354A (en) * | 2017-07-27 | 2020-04-10 | 特雷勒堡车轮系统意大利股份公司 | Rotary joint and pressure regulating system for a tyre |
| CN109532347A (en) * | 2019-01-16 | 2019-03-29 | 镇江神行太保科技有限公司 | One kind being used for card car drive shaft inflation system gas channels and sealing structure |
| CN110154653A (en) * | 2019-05-31 | 2019-08-23 | 吉林大学 | A vehicle tire automatic inflation and deflation device and its control method |
| CN110154653B (en) * | 2019-05-31 | 2024-02-06 | 吉林大学 | Automatic inflation and deflation device for vehicle tires and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4733707A (en) | Vehicle wheel end assembly | |
| EP0575525B1 (en) | Wheel mounting for tire pressure adjustment system | |
| US6871683B2 (en) | Hub cap filter for tire inflation system | |
| JP2740341B2 (en) | Method for providing an inflated air passage in a wheel end assembly | |
| CN100431858C (en) | Rotary joint for use in automatic tire inflation system | |
| EP0379355B1 (en) | Rotary wheel-end assembly for tire inflation system | |
| US6325124B1 (en) | Pneumatic rotary wheel coupling | |
| EP0407126B1 (en) | In-tire filter for central inflation system | |
| EP0588595A1 (en) | Combined original and retrofit central tire inflation system | |
| US20020124926A1 (en) | Pneumatic rotary wheel coupling with early wheel bearing wear warning | |
| CN108944260A (en) | Hub unit and its assembly installation method | |
| CN1072381A (en) | Rotary seal air chamber for inflation of tyre | |
| CN106827979A (en) | A kind of tire inflation/deflation structure of vehicle | |
| CN209409702U (en) | Wheel Beam Structures for Central Tire Inflation and Deflation Systems | |
| CN208664817U (en) | Hub unit | |
| CN2651020Y (en) | Double-lip sealing airtight check | |
| CN102022545A (en) | Combined type oil-gas seal | |
| WO2011070387A1 (en) | Driven wheel assembly and automotive vehicle equipped with such an assembly | |
| CN214874006U (en) | Automobile maintenance-free hub assembly | |
| CN206327094U (en) | A kind of tire inflation/deflation structure of vehicle | |
| CN116123213A (en) | Function integrated hub bearing unit | |
| CN212765474U (en) | Aluminum wheel structure for preventing water accumulation and reducing cost | |
| CN208774434U (en) | Central air-charging and air-discharging system and double type tire for double type tire | |
| CN201890100U (en) | Single-lip and double-lip combined rotary air seal device | |
| CN222329392U (en) | Axle inflatable structure and axle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |