CN105221871A - A kind of rotating sealing device for ransaxle - Google Patents
A kind of rotating sealing device for ransaxle Download PDFInfo
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- CN105221871A CN105221871A CN201410235391.5A CN201410235391A CN105221871A CN 105221871 A CN105221871 A CN 105221871A CN 201410235391 A CN201410235391 A CN 201410235391A CN 105221871 A CN105221871 A CN 105221871A
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- end plate
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- tapered collar
- sealing device
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Abstract
A kind of rotating sealing device for ransaxle, by the first Seal end plate, second Seal end plate, first seal, second seal, tapered collar assembly, the compositions such as rotating seal ring, first Seal end plate and the second Seal end plate are fixedly mounted on the two ends of the second seal respectively and are arranged on the two ends of the first seal respectively by bearings, a rotating seal ring is separately installed with near the first Seal end plate and the position of the first seal and the position of the second Seal end plate and the first seal between the first described Seal end plate and the second Seal end plate, two conical surfaces of the first tapered collar and the second tapered collar are pressed on two rotating seal rings respectively to form end face seal and radial seal.Rotating seal ring friction factor is low and wear resistance good, and rotating seal ring is all uniform wear diametrically and axially, can auto-compensation after wearing and tearing.Required driving torque is little, low in energy consumption, is specially adapted to the rotary dynamic seal under lasting gas pressure effect.
Description
Technical field
The present invention relates to the rotating sealing device in a kind of tire deflation system charge, be specially a kind of rotating sealing device for ransaxle.
Background technique
Center Tyre Inflation/Deflation System is once being enclosed within during vehicle is advanced the system that can regulate inflation pressure of tire at any time, and its Main Function improves the ability of off-road vehicle by soft surfaces such as sandy beach, muddy, marshes.
Center Tyre Inflation/Deflation System is made up of parts such as rotating sealing device, wheel valve, blocking-valve, maneuver control device and sources of the gas, wheel valve is arranged on wheel, making rotating sealing device under packing state and air communicates and do not bear the effect of gas pressure for cutting off tire air chamber and rotating sealing device, extending the working life of rotating seal ring with this.Wheel valve is a pneumatic element, poor reliability and limited to the degree of regulation of tire pressure, and its volume and weight is all comparatively large, and wheel is installed and also needs counterweight, installation and maintenance is also inconvenient.Because tire air chamber is isolated by wheel valve under packing state, Center Tyre Inflation/Deflation System can not the inflation pressure of Real-Time Monitoring tire, namely can not monitor the using state of each tire.
A kind of desirable state, it is exactly the inflation pressure of the monitoring tire continued, all tire pressure signal can be presented in real time in the display unit in operator cabin in vehicle travels and when stopping, allow driver can recognize the minor variations of tire condition at any time, and keep inflation pressure of tire in real time in setting level by inflation and bleed air operation, effectively to safeguard tire, this just requires that rotating sealing device has higher sealability and longer working life.
A kind of rotating sealing device is disclosed in the patent document of the patent of invention of having authorized (200810131073.9), in this technological scheme, rotating seal ring can be thrown off sealing voluntarily and not rub under the state not having gas pressure effect, rotating seal ring only weares and teares when inflation/deflation, can improve the working life of rotating sealing device.In this structure, the axle coordinated with rotating seal ring and Kong Youyi is suspend, the concentricity of the axle and hole of namely installing seal ring only depends on the weight of the part of suspension, and have nothing to do with other factors, the radial direction of rotating seal ring is uniform wear, there is longer working life, can be used for the wiper seal continued.Shortcoming is: rubber seal can only be used to do rotating seal ring, and surface friction drag when running in a high voltage state for large-sized rotating sealing device is very large, and heating value is also larger.The maximum friction linear velocity allowable that rubber seal is used as rotary dynamic seal is generally not more than 0.5m/s, fluorine glue seal ring this numerical value good for wear resistance can be lower, temperature is too high also can accelerate the aging of seal ring, and thus this organization plan is not suitable for use in high linear speed and the rotary seal of the long-time use of continuous effect.
Summary of the invention
The object of the present invention is to provide a kind of rotating sealing device for ransaxle, to realize at high linear speed and can long-time running and there is good pressurize sealing effect and longer working life under the effect of continuous.
The technical solution adopted in the present invention is: a kind of rotating sealing device for ransaxle, by the first Seal end plate, second Seal end plate, first seal, second seal, first tapered collar, second tapered collar, rotating seal ring, elastic element, the revolving parts compositions such as circlip, the first described seal and the second seal coaxially arrange and are set in together formation toroidal cavity, first Seal end plate and the second Seal end plate are fixedly mounted on the two ends of the second seal respectively and are arranged on the two ends of the first seal respectively by bearings, a seal ring is separately installed with between the first sealing plate and the second seal and between the second sealing plate and the second seal, a rotating seal ring is separately installed with near the first Seal end plate and the position of the first seal and the position of the second Seal end plate and the first seal between the first described Seal end plate and the second Seal end plate, a tapered collar assembly is installed between the first described Seal end plate and the second Seal end plate, described tapered collar assembly installs the first tapered collar and the second tapered collar that arrange and the elastic element be installed between two tapered collars forms by coaxial, two conical surfaces of the first tapered collar and the second tapered collar to be pressed in respectively on two rotating seal rings and to make two rotating seal rings respectively and form end face seal between the first Seal end plate and the second Seal end plate and form radial seal respectively and between the first seal, position on the first seal and between two rotating seal rings is provided with the first gas port, the sidewall of the second tapered collar is provided with some through holes, second seal is provided with the second gas port of communication with cavity.
Described rotating seal ring is wear-resisting by polyether-ether-ketone (modified polyetheretherketonefiber) or polyimide (modified polyimide) etc. and the o type circle of the engineering plastics processing and fabricating that friction factor is less.
Described elastic element can select butterfly spring or rubber o type circle, and the effect of this elastic element makes it extrude each self-corresponding rotating seal ring to the first tapered collar and the second tapered collar force, realizes initial sealing and compensate for wear with this.
By design change the tapering of tapered collar can distribute pretension compressive force between rotating seal ring and Seal end plate and and the first seal between the ratio of pretension compressive force, to obtain power consumption little as far as possible.
First gas port and the second gas port are respectively used to be connected tire air chamber or source of the gas pipeline.
Whole rotating sealing device is fixedly mounted on hub spindle or live axle by the second seal, and by seal ring, the second gas port on the second seal is connected with the gas port on hub spindle or jack shaft is airtight, first seal is with tire synchronous rotary, first gas port is communicated with tire air chamber, so just the pressurized gas of source of the gas can be transferred in tire air chamber or by the pressurized gas in tire air chamber and enter air.
The invention has the beneficial effects as follows: rotating seal ring adopts modification four polyether-ether-ketone or modified polyimide material to carry out processing and fabricating, larger friction linear velocity can be adapted to and do rotary dynamic seal under higher gas pressure effect, oil-free lubrication, friction factor is low and wear resistance good, and working life is longer; For whole rotating sealing device, because tapered collar suspends, rotating seal ring is all uniform wear diametrically and axially, and can recover distortion by elastomer and carry out auto-compensation after wearing and tearing.Because the friction factor of rotating seal ring is less, required driving torque is little, low in energy consumption, is specially adapted to the rotary dynamic seal under lasting gas pressure effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of rotating sealing device of the present invention;
In figure, the 1, first Seal end plate, the 2, first tapered collar, 3, rotating seal ring, 4, bearing, the 5, first seal, 6, elastic element, 7, bearing, 8, rotating seal ring, the 9, second tapered collar, the 10, second Seal end plate, the 11, second seal, 12, seal ring, 13, circlip, 14, seal ring, 15, seal ring, 16, circlip, 17, seal ring, 18, hub spindle, a, the first gas port, b, through hole, c, the second gas port.
Embodiment
A kind of rotating sealing device for ransaxle, by the first Seal end plate (1), second Seal end plate (10), first seal (5), second seal (11), first tapered collar (2), second tapered collar (9), rotating seal ring (3, 8), elastic element (6), bearing (4, 7), circlip (13, 16), seal ring (14, 15) the revolving parts composition such as, described the first seal (5) and the second seal (11) coaxially arrange and are set in together formation toroidal cavity, first Seal end plate 1 and the second Seal end plate 10 are respectively by circlip (13, 16) two ends of the second seal (11) are arranged on also respectively by bearing (4, 7) two ends being arranged on the first seal (5) are supported, a seal ring (17 is separately installed with between the first sealing plate (1) and the second seal (11) and between the second sealing plate (10) and the second seal (11), 12), a rotating seal ring (3 is separately installed with near the position of the first Seal end plate (1) and the first seal (5) and the second Seal end plate (10) with the position of the first seal (5) between described the first Seal end plate (1) and the second Seal end plate (10), 8), between described the first Seal end plate (1) and the second Seal end plate (10), a tapered collar assembly is installed, described tapered collar assembly installs the first tapered collar (2) and the second tapered collar (9) that arrange and the elastic element (6) be installed between two tapered collars forms by coaxial, two conical surfaces of the first tapered collar (2) and the second tapered collar (9) are pressed in two rotating seal rings (3 respectively, 8) go up and make two rotating seal rings (3, 8) respectively and form end face seal between the first Seal end plate (1) and the second Seal end plate (10) and form radial seal respectively and between the first seal (5), go up at the first seal (5) and be positioned at two rotating seal rings (3, 8) position between is provided with the first gas port (a), the sidewall of the second tapered collar (9) is provided with some through holes (b), second seal (11) is provided with the second gas port (c) of communication with cavity.
Described rotating seal ring (3,8) is wear-resisting by polyether-ether-ketone (modified polyetheretherketonefiber) or polyimide (modified polyimide) etc. and the o type circle of the engineering plastics processing and fabricating that friction factor is less.
Described elastic element (6) can select butterfly spring or rubber o type circle.
Whole rotating sealing device is fixedly mounted on hub spindle (18) or live axle by the second seal (11), and by seal ring (12,17), the second gas port on the second seal (11) is connected with the gas port on hub spindle (18) or jack shaft is airtight, first seal (5) is with tire synchronous rotary, first gas port (a) is communicated with tire air chamber, so just the pressurized gas of source of the gas can be transferred in tire air chamber or by the pressurized gas in tire air chamber and enter air.
Above-described embodiment is one of embodiment of technological scheme optimum of the present invention, those skilled in the art can propose various apparent improvement by above embodiment, typical improvement: permeate elastic element and rotating seal ring a black box, and provided axially and radial initial sealing pressure by tapered collar extruding elastic element.Any improvement made by equivalent substitute mode using technological scheme of the present invention as framework is all dropped within protection scope of the present invention.
Claims (4)
1. the rotating sealing device for ransaxle, by the first Seal end plate, second Seal end plate, first seal, second seal, first tapered collar, second tapered collar, rotating seal ring, the revolving parts compositions such as elastic element, its technical characteristics is: the first seal and the second seal coaxially arrange and be set in together formation toroidal cavity, first Seal end plate and the second Seal end plate are fixedly mounted on the two ends of the second seal respectively and are arranged on the two ends of the first seal respectively by bearings, a seal ring is separately installed with between the first sealing plate and the second seal and between the second sealing plate and the second seal, a rotating seal ring is separately installed with near the first Seal end plate and the position of the first seal and the position of the second Seal end plate and the first seal between the first described Seal end plate and the second Seal end plate, a tapered collar assembly is installed between the first described Seal end plate and the second Seal end plate, described tapered collar assembly installs the first tapered collar and the second tapered collar that arrange and the elastic element be installed between two tapered collars forms by coaxial, two conical surfaces of the first tapered collar and the second tapered collar to be pressed in respectively on two rotating seal rings and to make two rotating seal rings respectively and form end face seal between the first Seal end plate and the second Seal end plate and form radial seal respectively and between the first seal, position on the first seal and between two rotating seal rings is provided with the first gas port, the sidewall of the second tapered collar is provided with some through holes, second seal is provided with the second gas port of communication with cavity.
2. a kind of rotating sealing device for ransaxle according to claim 1, its technical characteristics is: described elastic element selects butterfly spring or rubber o type circle.
3. a kind of rotating sealing device for ransaxle according to claim 1, its technical characteristics is: described rotating seal ring is by the material modified etc. wear-resisting of polyether-ether-ketone or polyimide and the o type circle that makes of the engineering plastics that friction factor is less.
4. a kind of rotating sealing device for ransaxle according to claim 1, its technical characteristics is: the first gas port and the second gas port are respectively used to be connected tire air chamber or source of the gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235391.5A CN105221871A (en) | 2014-05-26 | 2014-05-26 | A kind of rotating sealing device for ransaxle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235391.5A CN105221871A (en) | 2014-05-26 | 2014-05-26 | A kind of rotating sealing device for ransaxle |
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| Publication Number | Publication Date |
|---|---|
| CN105221871A true CN105221871A (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410235391.5A Pending CN105221871A (en) | 2014-05-26 | 2014-05-26 | A kind of rotating sealing device for ransaxle |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918442A (en) * | 2017-01-22 | 2017-07-04 | 中国测试技术研究院声学研究所 | A kind of sound-absorbing porous material flow resistance measuring instrument |
| CN107738546A (en) * | 2017-10-27 | 2018-02-27 | 李炼 | Be rotatably connected ring |
| CN107962918A (en) * | 2016-10-19 | 2018-04-27 | 固特异轮胎和橡胶公司 | Connection component for Air maintenance tire |
| CN114887979A (en) * | 2022-04-07 | 2022-08-12 | 西安聚能高温合金材料科技有限公司 | Cleaning device and method for high-temperature alloy recycling car scraps |
| CN117889280A (en) * | 2024-03-15 | 2024-04-16 | 泰州市贝特思管道装备有限公司 | Low-resistance bidirectional rotation compensator |
-
2014
- 2014-05-26 CN CN201410235391.5A patent/CN105221871A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962918A (en) * | 2016-10-19 | 2018-04-27 | 固特异轮胎和橡胶公司 | Connection component for Air maintenance tire |
| US10513157B2 (en) | 2016-10-19 | 2019-12-24 | The Goodyear Tire & Rubber Company | Connection assembly for an air maintenance tire |
| CN106918442A (en) * | 2017-01-22 | 2017-07-04 | 中国测试技术研究院声学研究所 | A kind of sound-absorbing porous material flow resistance measuring instrument |
| CN107738546A (en) * | 2017-10-27 | 2018-02-27 | 李炼 | Be rotatably connected ring |
| CN114887979A (en) * | 2022-04-07 | 2022-08-12 | 西安聚能高温合金材料科技有限公司 | Cleaning device and method for high-temperature alloy recycling car scraps |
| CN117889280A (en) * | 2024-03-15 | 2024-04-16 | 泰州市贝特思管道装备有限公司 | Low-resistance bidirectional rotation compensator |
| CN117889280B (en) * | 2024-03-15 | 2024-05-28 | 泰州市贝特思管道装备有限公司 | Low-resistance bidirectional rotation compensator |
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| PB01 | Publication | ||
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Application publication date: 20160106 |