CN202138165U - Wheel reducer with inflation and deflation functions and double air paths - Google Patents
Wheel reducer with inflation and deflation functions and double air paths Download PDFInfo
- Publication number
- CN202138165U CN202138165U CN201120195176U CN201120195176U CN202138165U CN 202138165 U CN202138165 U CN 202138165U CN 201120195176 U CN201120195176 U CN 201120195176U CN 201120195176 U CN201120195176 U CN 201120195176U CN 202138165 U CN202138165 U CN 202138165U
- Authority
- CN
- China
- Prior art keywords
- hub spindle
- air
- guide shaft
- fine motion
- air guide
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model provides a wheel reducer with inflation and deflation functions and double air paths. A central air path and a control air path are arranged on a hub shaft of an existing wheel reducer, the hub shaft is provided with an air control one-way valve positioned at the front end of a tire connecting flange, an end surface rotating sealing structure is disposed between the tail end of the hub shaft and an end cover, air inlet joints which correspond to the control air path and the central air path are respectively arranged on the end cover, and the air control one-way valve is connected with an air nozzle of a tire. The air control one-way valve is controlled to be opened and closed by means of controlling whether air enters the control air path or not, the tire is inflated by means of filling air into the central air path, and the central air path is also a deflation channel of the tire. A tire inflation and deflation structure is integrated on the wheel reducer, the air control one-way valve is connected with the tire, the air inlet joints are connected with corresponding control valves, accordingly, the tire can be inflated and deflated without stopping a vehicle, the wheel reducer is reasonable in structure, small in volume and convenient in arrangement and can be conveniently applied to trucks and off-road vehicles, and dynamic balance can be realized easily.
Description
Technical field
The utility model relates to a kind of double air passage wheel reduction gear
with charging-discharging function of truck, cross country car use.
Background technology
The design of existing more domestic cross country cars has that tire central authorities fill, blow-off system; This system is made up of compressed air gas source, control gas circuit, rotary seal air chamber, manual pulley limit valve and corresponding pipeline; Through charging and discharging gas, can improve the crossing ability of wheeled car on soft and muddy road surface.But what tire was charged and discharged that gas adopts is manual pulley limit valve, can not in running car, regulate the air pressure of tire, needs the parking M/C.
Summary of the invention
In order on the truck of equipping wheel reduction gear and cross country car, realizing not stopping tire to be charged and discharged gas, to simplify the structure that tire central authorities charge and discharge gas automatically simultaneously, the utility model proposes a kind of double air passage wheel reduction gear with charging-discharging function.
Technical conceive: on the hub spindle of single-stage wheel reduction gear, double air passage is set, two ends are provided with Pneumatic valve, end face rotary sealing appts respectively on its hub spindle, thereby make the single-stage wheel reduction gear have the tire charging-discharging function.
For this reason; The technical scheme of the utility model is: a kind of double air passage wheel reduction gear with charging-discharging function; Comprise wheel reduction gear, the structure of said wheel reduction gear is: on housing, laterally arranging is provided with input gear, hub spindle, and the two ends of input gear are stretched out axle journal and passed through bearings in housing; Input gear is provided with the center splined hole; Input gear and output gear engagement, output gear is connected on the hub spindle through spline, and the front end of hub spindle is provided with the butt flange of direct connection wheel; It is characterized in that: the front end at hub spindle is provided with one section center stepped hole, is provided with center shaft to air flue at hub spindle, on hub spindle, is arranged with two axially control air flues; In the stepped hole of the center of hub spindle, the gas control check valve is housed; Between the tail end of hub spindle and end cap, be provided with a fine motion air guide shaft; Lead in the orienting sleeve of fine motion air guide shaft on being connected housing; The fine motion air guide shaft is coaxial with hub spindle, and the outside of orienting sleeve is provided with end cap, constitutes sealed cavity between orienting sleeve, fine motion air guide shaft and the end cap; The front end of fine motion air guide shaft is provided with flange; Housing upper edge axial restraint has locating dowel pin; The fine motion air guide shaft is inserted in through locating dowel pin and is limited in the pilot hole on the flange to rotate, and the fine motion air guide shaft is provided with central airway, and the front end face of fine motion air guide shaft is provided with circumferential groove; Axially the control air flue is corresponding with two for circumferential groove, is arranged with two induction openings on the fine motion air guide shaft and is communicated with circumferential groove; Embedding respectively on the corresponding end face between hub spindle and the fine motion air guide shaft has the wear-resistant ceramic seal ring, is the end face rotary seal structure; Central airway on the fine motion air guide shaft is connected with inlet suction port and stretches out from the end cap center, and end cap is provided with the inlet suction port of control air flue; The afterbody of fine motion air guide shaft is fixed with rubber spring, and under the state of control obstruction of the respiratory passage gas, rubber spring makes two parts wear-resistant ceramic seal ring break away from and do not contact.
Further qualification to technique scheme: the structure of said gas control check valve is: be made up of supporting seat, compression spring, conical valve base, conical valve base is a step axle that is made up of big axle journal and pilot pin; The pilot pin of conical valve base is directed in the aperture of center stepped hole; Be provided with seal ring between the two; The center shaft that the head conical surface of conical valve base gets lodged in hub spindle is on air flue; Looping inlet chamber between the bottom surface of the end face of pilot pin and center stepped hole is provided with axial air flue and is communicated with annular inlet chamber in the pilot pin; Big axle journal is directed in the macropore of center stepped hole, is provided with seal ring between the two, forms annular control air cavity between the end face of big axle journal and the end face of hub spindle, and annular is controlled air cavity and communicated with control air flue on the hub spindle; Supporting seat is fixed on the aperture of center counterbore, and compression spring is supported between supporting seat, the conical valve base, and supporting seat is provided with the center gas off-take.
Beneficial effect: the utility model utilizes existing wheel reduction gear to improve; Through gas control check valve, end face rotary seal structure being set at its hub spindle itself and two ends thereof; Integrated tire inflation/deflation structure on wheel reduction gear, the gas control check valve is connected with tire, and inlet suction port is connected with the control corresponding valve; Can realize not stopping tire is charged and discharged gas, and simple in structure; Replace existing solenoid electric valve with the gas control check valve, avoided the complicated circuitry arrangement structure; Use end face rotary seal, more can reduce the amount of leakage of gas than other rotary seal mode.The utility model is rational in infrastructure, volume is little, is convenient to arrange, can be used in easily on truck and the cross country car.
Description of drawings
Fig. 1 is the structure cutaway view of the utility model.
Fig. 2 is a B place partial enlarged drawing among Fig. 1.
Fig. 3 is an A place partial enlarged drawing among Fig. 1.
The specific embodiment
Like Fig. 1,2, shown in 3, it is following to further describe the utility model: a kind of double air passage wheel reduction gear with charging-discharging function comprises wheel reduction gear; The structure of said wheel reduction gear is: on housing 1, laterally arranging is provided with input gear 2, hub spindle 8; The two ends of input gear 2 are stretched out axle journal and are supported in the housing 1 through bearing 3, and input gear 2 is provided with the center splined hole, input gear 2 and output gear 14 engagements; Output gear 14 is connected on the hub spindle 8 through spline; The front end of hub spindle is provided with the butt flange 4 of direct connection wheel, and hub spindle 8 is supported in the housing through bearing 9, and the hub spindle afterbody is provided with end cap 13; Front end at hub spindle is provided with one section center stepped hole, is provided with center shaft to air flue 12 at hub spindle, on hub spindle, is arranged with two axially control air flues 11; In the stepped hole of the center of hub spindle, the gas control check valve is housed; Between the tail end of hub spindle and end cap, be provided with a fine motion air guide shaft 22; Leave sealed cavity 20 between fine motion air guide shaft 22 and the end cap 13, fine motion air guide 22 is led in housing, and fine motion air guide shaft 22 is coaxial with hub spindle 8; The front end of fine motion air guide shaft 22 is provided with flange; Be fixed with locating dowel pin 24 on the flange; Fine motion air guide shaft 22 is inserted in through locating dowel pin 24 and is limited in the pilot hole of housing to rotate, and fine motion air guide shaft 22 is provided with central airway 21, and the front end face of fine motion air guide shaft is provided with circumferential groove; Axially the control air flues are corresponding on circumferential groove and the hub spindle 8 two, are arranged with two induction openings 23 on the fine motion air guide shaft and are communicated with circumferential groove; Embedding respectively on the corresponding end face between hub spindle and the fine motion air guide shaft has wear-resistant ceramic seal ring 16, is the end face rotary seal structure; Central airway 21 on the fine motion air guide shaft is connected with inlet suction port 19 and stretches out from the end cap center, and end cap is provided with the inlet suction port 18 of control air flue; The afterbody of fine motion air guide shaft is fixed with rubber spring 17, and under the state of control obstruction of the respiratory passage gas, rubber spring makes two parts wear-resistant ceramic seal ring 16 break away from and do not contact.
Like Fig. 1, shown in 3, describe a kind of structure of gas control check valve: be made up of supporting seat 6, compression spring 7, conical valve base 5, conical valve base 5 is step axles that are made up of big axle journal and pilot pin; The pilot pin of conical valve base is directed in the aperture of center stepped hole; Be provided with seal ring between the two; The head conical surface of conical valve base gets lodged in the center shaft of hub spindle on air flue 12; Looping inlet chamber 28 between the bottom surface of the end face of pilot pin and center stepped hole is provided with axial air flue 26 and is communicated with annular inlet chamber 28 in the pilot pin; Big axle journal is directed in the macropore of center stepped hole, is provided with seal ring between the two, forms annular control air cavity 27 between the end face of big axle journal and the end face of hub spindle, and annular is controlled air cavity 27 and communicated with control air flue 11 on the hub spindle; Support seat 6 is fixed on the aperture of center counterbore, and compression spring 7 is supported between supporting seat 6, the conical valve base 5, and supporting seat 5 is provided with center gas off-take 25.When the control airway pressure on the hub spindle 8, conical valve base 5 moves to the direction of supporting seat 6, the axial air flue 12 in head conical surface off center of conical valve base, and pressurized air arrives tire through center shaft to air flue 12, axial air flue 26, center gas off-take 25.Center shaft still is the bleed passage of tire to air flue 12.
Claims (2)
1. double air passage wheel reduction gear with charging-discharging function; Comprise wheel reduction gear, the structure of said wheel reduction gear is: on housing, laterally arranging is provided with input gear, hub spindle, and the two ends of input gear are stretched out axle journal and passed through bearings in housing; Input gear is provided with the center splined hole; Input gear and output gear engagement, output gear is connected on the hub spindle through spline, and the front end of hub spindle is provided with the butt flange of direct connection wheel; It is characterized in that: the front end at hub spindle is provided with one section center stepped hole, is provided with center shaft to air flue at hub spindle, on hub spindle, is arranged with two axially control air flues; In the stepped hole of the center of hub spindle, the gas control check valve is housed; Between the tail end of hub spindle and end cap, be provided with a fine motion air guide shaft; Lead in the orienting sleeve of fine motion air guide shaft on being connected housing; The fine motion air guide shaft is coaxial with hub spindle, and the outside of orienting sleeve is provided with end cap, constitutes sealed cavity between orienting sleeve, fine motion air guide shaft and the end cap; The front end of fine motion air guide shaft is provided with flange; Housing upper edge axial restraint has locating dowel pin; The fine motion air guide shaft is inserted in through locating dowel pin and is limited in the pilot hole on the flange to rotate, and the fine motion air guide shaft is provided with central airway, and the front end face of fine motion air guide shaft is provided with circumferential groove; Axially the control air flue is corresponding with two for circumferential groove, is arranged with two induction openings on the fine motion air guide shaft and is communicated with circumferential groove; Embedding respectively on the corresponding end face between hub spindle and the fine motion air guide shaft has the wear-resistant ceramic seal ring, is the end face rotary seal structure; Central airway on the fine motion air guide shaft is connected with inlet suction port and stretches out from the end cap center, and end cap is provided with the inlet suction port of control air flue; The afterbody of fine motion air guide shaft is fixed with rubber spring, and under the state of control obstruction of the respiratory passage gas, rubber spring makes two parts wear-resistant ceramic seal ring break away from and do not contact.
2. a kind of double air passage wheel reduction gear according to claim 1 with charging-discharging function; The structure that it is characterized in that said gas control check valve is: be made up of supporting seat, compression spring, conical valve base, conical valve base is a step axle that is made up of big axle journal and pilot pin; The pilot pin of conical valve base is directed in the aperture of center stepped hole; Be provided with seal ring between the two; The center shaft that the head conical surface of conical valve base gets lodged in hub spindle is on air flue; Looping inlet chamber between the bottom surface of the end face of pilot pin and center stepped hole is provided with axial air flue and is communicated with annular inlet chamber in the pilot pin; Big axle journal is directed in the macropore of center stepped hole, is provided with seal ring between the two, forms annular control air cavity between the end face of big axle journal and the end face of hub spindle, and annular is controlled air cavity and communicated with control air flue on the hub spindle; Supporting seat is fixed on the aperture of center counterbore, and compression spring is supported between supporting seat, the conical valve base, and supporting seat is provided with the center gas off-take.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120195176U CN202138165U (en) | 2011-06-12 | 2011-06-12 | Wheel reducer with inflation and deflation functions and double air paths |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120195176U CN202138165U (en) | 2011-06-12 | 2011-06-12 | Wheel reducer with inflation and deflation functions and double air paths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202138165U true CN202138165U (en) | 2012-02-08 |
Family
ID=45549241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120195176U Expired - Fee Related CN202138165U (en) | 2011-06-12 | 2011-06-12 | Wheel reducer with inflation and deflation functions and double air paths |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202138165U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125889A (en) * | 2012-02-21 | 2014-10-29 | 横滨橡胶株式会社 | Hub unit for vehicle and air pressure adjustment device |
| CN108705904A (en) * | 2018-06-11 | 2018-10-26 | 苏州巴吉赛车科技有限公司 | A kind of wheel hem retarding mechanism with aerification function |
-
2011
- 2011-06-12 CN CN201120195176U patent/CN202138165U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104125889A (en) * | 2012-02-21 | 2014-10-29 | 横滨橡胶株式会社 | Hub unit for vehicle and air pressure adjustment device |
| CN104125889B (en) * | 2012-02-21 | 2016-11-09 | 横滨橡胶株式会社 | Vehicle hub unit and air pressure adjusting apparatus |
| CN108705904A (en) * | 2018-06-11 | 2018-10-26 | 苏州巴吉赛车科技有限公司 | A kind of wheel hem retarding mechanism with aerification function |
| CN108705904B (en) * | 2018-06-11 | 2023-12-08 | 太仓威强精工机械有限公司 | Wheel side speed reducing mechanism with inflation function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3027433B1 (en) | Vehicle wheel assembly | |
| US20100065177A1 (en) | Wheel axle and drive or universal shaft for vehicles with a central tyre pressure supply | |
| CN102019820B (en) | Gas circuit structure for central gas charging and discharging system | |
| CN103596780A (en) | System and method using a pressure reduction valve | |
| CN110154653B (en) | Automatic inflation and deflation device for vehicle tires and control method thereof | |
| CN202138165U (en) | Wheel reducer with inflation and deflation functions and double air paths | |
| CN209920959U (en) | Automatic inflation and deflation device for electric wheel tire | |
| CN102218977A (en) | Automobile tire central air inflation and deflation device for hub reduction gear assembly | |
| CN105221871A (en) | A kind of rotating sealing device for ransaxle | |
| CN106827979A (en) | A kind of tire inflation/deflation structure of vehicle | |
| CN206327094U (en) | A kind of tire inflation/deflation structure of vehicle | |
| CN101863199A (en) | Air path of central air charging and discharging system for automobile | |
| CN105856984A (en) | Anti-tire-burst crude oil pipeline overhaul tool vehicle | |
| CN201941518U (en) | Wheel hub used in central tire inflation and deflation structure | |
| CN208774434U (en) | Central air-charging and air-discharging system and double type tire for double type tire | |
| CN206384026U (en) | A kind of knuckle of vehicle | |
| CN107471925B (en) | Independent central inflation and deflation structure | |
| CN112032372A (en) | Inflation and deflation valve for vehicle tire | |
| CN206968315U (en) | A kind of free-standing central inflation/deflation structure | |
| CN201462115U (en) | Novel positive pressure air filling and releasing valve | |
| CN111006039A (en) | Instant response automobile suspension inflation and deflation valve device | |
| CN207229858U (en) | One kind wheel side valve assembly | |
| CN215621215U (en) | Automobile tire pressure active adjusting system | |
| CN103253085A (en) | Dual-air-cavity wheel inner tube | |
| CN211875178U (en) | Instant response automobile suspension inflation and deflation valve device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20140612 |