CN105909696B - A kind of splined shaft and the retarder oil channel structures based on the splined shaft and lubricating method - Google Patents

A kind of splined shaft and the retarder oil channel structures based on the splined shaft and lubricating method Download PDF

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Publication number
CN105909696B
CN105909696B CN201610462875.2A CN201610462875A CN105909696B CN 105909696 B CN105909696 B CN 105909696B CN 201610462875 A CN201610462875 A CN 201610462875A CN 105909696 B CN105909696 B CN 105909696B
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China
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oil
splined shaft
rotor
retarder
stator
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CN201610462875.2A
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CN105909696A (en
Inventor
高帅
李沙龙
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00Shafts; Axles; Cranks; Eccentrics
    • F16C3/02Shafts; Axles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00Parts or details
    • F16D65/78Features relating to cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16NLUBRICATING
    • F16N1/00Constructional modifications of parts of machines or apparatus for the purpose of lubrication

Abstract

The invention discloses a kind of splined shaft and the retarder oil channel structures based on the splined shaft and lubricating method, by being arranged in splined shaft, second oil sealing, oil duct between rotor and stator, make oil sealing inside retarder, rotor, the total movements element such as stator and splined shaft is adequately lubricated, and the diameter and screw pitch of the internal thread on splined shaft are bigger, the effect of oil suction is more apparent, the structure is not changing primary structure, in the case of not influencing retarder performance, by to splined shaft, the cavity shell that works carries out local location improvement, the circulation route of lubricating oil when changing fast device work and idle running in parallel, the component in retarder is set to have obtained sufficient lubrication, reduce failure rate.

Description

A kind of splined shaft and the retarder oil channel structures based on the splined shaft and lubricating method
Technical field
The invention belongs to Retarder fields in parallel, and in particular to a kind of splined shaft and the retarder based on the splined shaft Oil channel structures and lubricating method.
Background technology
As the Retarder of auxiliary brake of vehicle, in vehicle driving process, no matter whether retarder is in Working condition, the elements such as its internal rotor, axis, bearing are all carrying out high speed rotation with the driving gear of retarder, because This, it is to ensure the premise of retarder performance to carry out adequately wetting to these high-speed rotating elements.Lubrication inside retarder It is to be lubricated using the working media (retarder fluid) of its own.When retarder in parallel carries out high speed rotation with vehicle, For sealing retarder fluid toward there is lubricated when retarder works at the second oil sealing leaked in gearbox inside retarder The fluid smaller hidden danger that cooling cannot be fully lubricated to this friction pair when fluid cannot recycle in time or retarder dallies.Such as There is prolonged bad lubrication in fruit, the sealing performance of the second oil sealing can be reduced, to influence the whole usability of retarder Energy.
In existing Retarder in parallel, retarder has sufficient retarder in normal work inside working chamber Fluid is lubricated the rotating elements such as rotor, bearing, splined shaft, and retarder fluid is updated in persistent loop.In the second oil At envelope, fluid is flowed to out of rotor Yu splined shaft junction spline from oil seal seat, then flows into oil sealing position.Rotor and front end Gap between lid is also filled with fluid, and the fluid at oil sealing is unfavorable for being flowed out in the gap at rotor back at this time, so oil sealing The fluid at place cannot be timely cyclically updated, if continuous working period is long, it is possible that oil sealing local location temperature mistake High problem.
Retarder has a small amount of fluid to motor element such as rotor, splined shaft, bearing, oil sealing in idle running in working chamber Etc. being lubricated, cool down.In idle running, high-speed rotating rotor under the effect of centrifugation mixes a small amount of oil gas inside working chamber It closes object and throws away the idle lubrication oil discharge passage above work cavity shell, meanwhile, the high speed rotation of rotor blade makes rotor work Make intracavitary and forms rotor axis area negative pressure, rotor edge region positive pressure.The fluid being thrown out of flows into heat by oil sump shell and hands over Parallel operation flows into work through oil sump shell from idle lubrication oil inlet passage again after carrying out heat exchange with vehicle coolant liquid in heat exchanger Make cavity shell, flows to spline shaft rear end.Fluid is then high again out of, the oil-feed tank of stator flows into rotor working chamber at this time The rotor of speed rotation is thrown away, such persistent loop.Three from rotor and splined shaft junction of the part fluid of spline shaft rear end It is flow at oil seal seat in spline, then oil sealing position is flow to from the aperture on oil seal seat, cooling is lubricated to the position, finally Fluid is carried on the back the gap between drive end bearing bracket from rotor rear portion and is flowed out, when participating in idle running in the cyclic process of fluid.But for Lubrication lubricating oil seals this process, and the spline rear and front end on rotor does not have apparent pressure difference or axial force, so fluid is not It can adequately flow at oil sealing and be lubricated oil cooling but.When retarder is in high rotating speed idling conditions for a long time, oil sealing position It cannot be fully lubricated cooling, oil sealing operating ambient temperature is higher, to reduce the performance and service life of oil sealing.Cause All there is the insufficient lubrication at oil sealing 2, when retarder works or dallies to influence the performance of retarder in this.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of splined shaft and the retarder oil circuit based on the splined shaft Structure and lubricating method, in the case where not changing primary structure, not influencing retarder performance, by splined shaft, working chamber Shell carries out local location improvement, the circulation route of lubricating oil when changing retarder work and idle running in parallel.
In order to achieve the above object, a kind of splined shaft, including axis body offered oily channel on the rear end axis of axis body, The rear end for crossing oily channel offers internal thread, and several apertures corresponding with oil seal seat oil outlet, aperture and mistake are offered on axis body Oily channel connection.
The internal thread is left-handed.
A kind of retarder oil channel structures based on splined shaft, including work cavity shell, work cavity shell has and splined shaft Rear end internal thread matches boss, and land length and diameter are less than the size of internal thread, driving gear, axis are arranged on splined shaft It holds, the oil seal seat with oil outlet, rotor and stator, the first oil sealing and the second oil sealing is arranged on oil seal seat;
The oil outlet of aperture and oil seal seat on the splined shaft is correspondingly arranged, and oil outlet is connected with the second oil sealing, the Two oil sealings have the oil duct for extra fluid to be imported to rotor back gap, oil duct and stator and the rotor in rotor back gap Between working chamber connection, rotor and splined shaft are connect by having vittate spline, with spline at the internal spline of rotor Oil duct, spline oil duct are connected to the aperture on splined shaft and the gap between stator and rotor, the gap between stator and rotor Connection is connected to work cavity shell.
A kind of lubricating method of retarder oil channel structures based on splined shaft, when retarder works, lubricating method includes Following steps:
Step 1, when retarder works, splined shaft rotates, the internal thread on splined shaft and the cylinder in work cavity shell Boss matches, and the relative motion of internal thread and cylinder boss is screwed into the fluid of spline shaft rear end excessively oily on splined shaft axis In channel;
Step 2, fluid by four apertures on the aperture and oil seal seat on splined shaft, finally flow to the second oil sealing again Place, is lubricated and cools down to the relative motion of the second oil sealing and oil seal seat;
Step 3, gap outflow of the fluid through rotor rear face after lubrication cooling;
Step 4, spline of the fluid being more than in spline slinger through rotor and splined shaft cooperation flow to stator back, It enters back between stator and rotor and is recycled.
When retarder dallies, lubricating method includes the following steps:
The gas mixture of working chamber enclosure interior is thrown away work by step 1, high-speed rotating rotor under the effect of centrifugation Make the idle lubrication oil discharge passage above cavity shell, meanwhile, the high speed rotation of rotor blade makes stator and working rotor intracavitary Form rotor axis area negative pressure, rotor edge region positive pressure;
Step 2, the fluid being thrown out of pass through oil sump shell inflow heat exchanger, in heat exchanger with vehicle coolant liquid into After row heat exchange spline shaft rear end is flowed to through oil sump shell stream idle lubrication oil inlet passage again;
Step 3, due to the relative motion of internal thread and work cavity shell convex platform on splined shaft axis so that spline The fluid of shaft rear end is pumped in the excessively oily channel of spline axis center, and is flowed out from fuel-displaced aperture, after the aperture on oil seal seat It flow at the second oil sealing, the relative motion of the second oil sealing and oil seal seat is lubricated and is cooled down;
Step 4 finally flows out to the working chamber between rotor from the gap at rotor back, then from work cavity shell It is flowed out in oil discharge passage;
Step 5 flow to stator by what splined shaft internal thread was pumped into more than spline of the fluid through rotor and splined shaft cooperation Back enters back between stator and rotor and is recycled.
The splined shaft rotates clockwise, and internal thread is left-handed.
Compared with prior art, splined shaft of the invention offered oily channel, was screwed into lubricating oil by internal thread In oily channel, excessively oily channel makes the position that outflow of lubrication oil is lubricated to needs by aperture, can avoid existing due to splined shaft There is no oil duct and leads to the problem of insufficient lubrication.
The present invention is the retarder oil channel structures based on a kind of splined shaft, by being arranged in splined shaft, the second oil sealing, rotor Oil duct between stator makes the total movements element such as oil sealing, rotor, stator and splined shaft inside retarder adequately be moistened It is sliding, and the diameter of the internal thread on splined shaft and screw pitch are bigger, and the effect of oil suction is more apparent, which is not changing main knot Structure in the case of not influencing retarder performance, by carrying out local location improvement to splined shaft, work cavity shell, changes in parallel The circulation route of lubricating oil, makes the component in retarder obtain sufficient lubrication, reduces failure rate when fast device work and idle running.
The present invention is a kind of lubricating method of the retarder oil channel structures based on splined shaft, when being worked by retarder and The lubricating step of two kinds of working conditions when retarder dallies makes oil sealing, rotor, stator and splined shaft etc. inside retarder all transport Dynamic element is adequately lubricated, and the failure rate of oil sealing, the service life of the retarder of raising are reduced.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing retarder;
Fig. 2 is that the present invention is based on a kind of retarder oil channel structures schematic diagrames of splined shaft;
Fig. 3 is the structural schematic diagram of splined shaft of the present invention;
Wherein, 1 --- driving gear;2 --- splined shaft;3 --- bearing;4 --- drive end bearing bracket;5 --- the first oil sealing; 6 --- the second oil sealing;7 --- rotor;8 --- stator;9 --- work cavity shell;10 --- oil seal seat;11 --- axis body; 12 --- excessively oily channel;13 --- internal thread.
Specific implementation mode
The present invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig. 2 and Fig. 3, a kind of splined shaft, including axis body 11 offered oily channel on the rear end axis of axis body 11 12, the rear end in oil channel 12 excessively offers internal thread 13, and internal thread is left-handed, is offered on axis body 11 several fuel-displaced with oil seal seat The corresponding aperture in hole, aperture are connected to oil channel 12 excessively.
A kind of retarder oil channel structures based on splined shaft, including work cavity shell 9, work cavity shell 9 has and spline 2 rear end internal thread 13 of axis matches boss, and land length and diameter are less than the size of internal thread 13, drive are arranged on splined shaft 2 Moving gear 1, bearing 3, the oil seal seat 10 with oil outlet, rotor 7 and stator 8 are arranged with the first oil sealing 5 and on oil seal seat 10 Two oil sealings 6;
The oil outlet of aperture and oil seal seat 10 on splined shaft 2 is correspondingly arranged, and oil outlet is connected with the second oil sealing 6, the Two oil sealings 6 have an oil duct for extra fluid to be imported to rotor 7 back gap, the oil duct in 7 back gap of rotor and stator 8 and Working chamber connection between rotor 7, rotor 7 are connect by having vittate spline with splined shaft 2, are had at the internal spline of rotor Spline oil duct, spline oil duct are connected to the aperture on splined shaft 2 and the gap between stator 8 and rotor 7, stator 8 and turn Gap connection between son 7 is connected to work cavity shell 9.
A kind of lubricating method of retarder oil channel structures based on splined shaft, when retarder works, lubricating method includes Following steps:
Step 1, when retarder works, splined shaft 2 rotates clockwise, and is levogyrate inner thread 13 and work on splined shaft The cylinder boss made in cavity shell 9 matches, and the fluid of 2 rear end of splined shaft is revolved in internal thread 13 and the relative motion of cylinder boss In excessively oily channel 12 on to splined shaft axis;
Step 2, fluid by four apertures on the aperture and oil seal seat 5 on splined shaft 2, finally flow to the second oil again It seals at 6, the relative motion of the second oil sealing 6 and oil seal seat 10 is lubricated and is cooled down;
Step 3, gap outflow of the fluid through 7 back side of rotor after lubrication cooling;
Step 4, the spline that the fluid being more than in 2 oil duct of splined shaft coordinates through rotor 7 and splined shaft 2 flow to stator 8 and carry on the back Portion enters back between stator 8 and rotor 7 and is recycled.
When retarder dallies, lubricating method includes the following steps:
Step 1, high-speed rotating rotor 7 under the effect of centrifugation throw away the gas mixture inside the cavity shell 9 that works The idle lubrication oil discharge passage of 9 top of work cavity shell, meanwhile, the high speed rotation of 7 blade of rotor makes 7 work of stator 8 and rotor Make intracavitary and forms rotor axis area negative pressure, rotor edge region positive pressure;
Step 2, the fluid being thrown out of pass through oil sump shell inflow heat exchanger, in heat exchanger with vehicle coolant liquid into Again through oil sump shell stream after row heat exchange, 2 rear end of splined shaft is flowed to from idle lubrication oil inlet passage;
Step 3 is transported due to being that levogyrate inner thread 13 is opposite with work 9 convex platform of cavity shell on 2 axis of splined shaft It is dynamic so that the fluid of 2 rear end of splined shaft is pumped in the excessively oily channel 12 at 2 center of splined shaft, and is flowed out from fuel-displaced aperture, through oil It is flow at the second oil sealing 6 after aperture on envelope seat 10, the relative motion of the second oil sealing 6 and oil seal seat 10 is lubricated and is dropped Temperature;
Step 4 finally flows out to the working chamber between rotor from the gap at 7 back of rotor, then from work cavity shell 9 Oil discharge passage in flow out;
Step 5, the spline stream coordinated through rotor 7 and splined shaft 2 more than fluid being pumped by 2 internal thread 13 of splined shaft To 8 back of stator, enters back between stator 8 and rotor 7 and recycled.

Claims (3)

1. a kind of retarder oil channel structures of splined shaft, which is characterized in that including work cavity shell (9) and splined shaft (2), spline Axis (2) includes axis body (11), and oily channel (12) was offered on the rear end axis of axis body (11), and the rear end of excessively oily channel (12) is opened Equipped with internal thread (13), several apertures corresponding with oil seal seat oil outlet, aperture and excessively oily channel are offered on axis body (11) (12) it is connected to;Work cavity shell (9) has matches boss, land length and diameter with splined shaft (2) rear end internal thread (13) Less than the size of internal thread (13), driving gear (1), bearing (3), the oil seal seat with oil outlet are arranged on splined shaft (2) (10), rotor (7) and stator (8) are arranged with the first oil sealing (5) and the second oil sealing (6) on oil seal seat (10);
The oil outlet of aperture and oil seal seat (10) on the splined shaft (2) is correspondingly arranged, and oil outlet is connected with the second oil sealing (6) Logical, the second oil sealing (6) has the oil duct for extra fluid to be imported to rotor (7) back gap, the oil in rotor (7) back gap Working chamber is connected between road and stator (8) and rotor (7), and rotor (7) is connect with splined shaft (2) by having vittate spline, There is spline oil duct, the aperture and stator (8) on spline oil duct and splined shaft (2) and rotor at the internal spline of rotor (7) the gap connection between, the gap between stator (8) and rotor (7) are connected to the oil duct of work cavity shell (9);
The internal thread (13) is left-handed.
2. a kind of lubricating method of the retarder oil channel structures described in claim 1 based on splined shaft, which is characterized in that slow When fast device work, lubricating method includes the following steps:
Step 1, when retarder works, splined shaft (2) rotates, in the internal thread (13) and work cavity shell (9) on splined shaft Cylinder boss match, the fluid of splined shaft (2) rear end is screwed into spline by the relative motion of internal thread (13) and cylinder boss In excessively oily channel (12) on axis axis;
Step 2, fluid by four apertures on the aperture and oil seal seat (5) on splined shaft (2), finally flow to the second oil again It seals at (6), the relative motion of the second oil sealing (6) and oil seal seat (10) is lubricated and is cooled down;
Step 3, gap outflow of the fluid through rotor (7) back side after lubrication cooling;
Step 4, spline of the fluid being more than in splined shaft (2) oil duct through rotor (7) and splined shaft (2) cooperation flow to stator (8) back enters back between stator (8) and rotor (7) and is recycled;
When retarder dallies, lubricating method includes the following steps:
Step 1, high-speed rotating rotor (7) under the effect of centrifugation throw away the internal gas mixture of work cavity shell (9) Idle lubrication oil discharge passage above work cavity shell (9), meanwhile, the high speed rotation of rotor (7) blade makes stator (8) and turns Rotor axis area negative pressure, rotor edge region positive pressure are formed in sub (7) working chamber;
Step 2, the fluid being thrown out of pass through oil sump shell inflow heat exchanger, and heat is carried out with vehicle coolant liquid in heat exchanger Amount flows to splined shaft (2) rear end through oil sump shell from idle lubrication oil inlet passage again after exchanging;
Step 3 is made due to the relative motion of internal thread (13) and work cavity shell (9) convex platform on splined shaft (2) axis The fluid for obtaining splined shaft (2) rear end is pumped in the excessively oily channel (12) at splined shaft (2) center, and is flowed out from fuel-displaced aperture, warp It is flow to after aperture on oil seal seat (10) at the second oil sealing (6), the relative motion of the second oil sealing (6) and oil seal seat (10) is carried out Lubrication and cooling;
Step 4, between finally flowing out to rotor from the gap at rotor (7) back, then from the fuel-displaced logical of work cavity shell (9) It is flowed out in road;
Step 5, the spline coordinated through rotor (7) and splined shaft (2) more than fluid being pumped by splined shaft (2) internal thread (13) Slot flow to stator (8) back, enters back between stator (8) and rotor (7) and is recycled.
3. a kind of lubricating method of the retarder oil channel structures according to claim 2 based on splined shaft, which is characterized in that The splined shaft (2) rotates clockwise, and internal thread (13) is left-handed.
CN201610462875.2A 2016-06-22 2016-06-22 A kind of splined shaft and the retarder oil channel structures based on the splined shaft and lubricating method Active CN105909696B (en)

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CN201610462875.2A CN105909696B (en) 2016-06-22 2016-06-22 A kind of splined shaft and the retarder oil channel structures based on the splined shaft and lubricating method

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DE102020107729B3 (en) * 2020-03-20 2021-06-10 Voith Patent Gmbh Retarder with cooled sealing system
DE102020107733B4 (en) 2020-03-20 2021-09-30 Voith Patent Gmbh Retarder with cooled sealing system

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DE202011050060U1 (en) * 2011-05-06 2011-08-02 Aesculap Ag Surgical handpiece
DE102011050166B4 (en) * 2011-05-06 2014-02-27 Gkn Walterscheid Gmbh Central lubrication of drive shafts
CN105202074B (en) * 2015-09-21 2017-10-03 哈尔滨工业大学 A kind of parallel hydraulic retarder and its separation method with arrangement of clutch
CN105673735B (en) * 2016-03-01 2018-06-05 宁波华盛联合制动科技有限公司 A kind of oil sealing lubrication system of Retarder
CN105673734A (en) * 2016-03-01 2016-06-15 宁波华盛联合制动科技有限公司 Hydrodynamic retarder and application method thereof
CN105673733A (en) * 2016-03-01 2016-06-15 宁波华盛联合制动科技有限公司 Oil seal lubricating structure of hydrodynamic retarder
CN205806277U (en) * 2016-06-22 2016-12-14 陕西法士特齿轮有限责任公司 A kind of splined shaft and retarder oil channel structures based on this splined shaft

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