CN205806277U - A kind of splined shaft and retarder oil channel structures based on this splined shaft - Google Patents

A kind of splined shaft and retarder oil channel structures based on this splined shaft Download PDF

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Publication number
CN205806277U
CN205806277U CN201620629868.2U CN201620629868U CN205806277U CN 205806277 U CN205806277 U CN 205806277U CN 201620629868 U CN201620629868 U CN 201620629868U CN 205806277 U CN205806277 U CN 205806277U
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China
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oil
splined shaft
rotor
retarder
stator
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CN201620629868.2U
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Chinese (zh)
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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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Abstract

The utility model discloses a kind of splined shaft and retarder oil channel structures based on this splined shaft, by being arranged on splined shaft, second oil sealing, oil duct between rotor and stator, make the internal oil sealing of retarder, rotor, the total movement element such as stator and splined shaft sufficiently lubricates, and the diameter of the female thread on splined shaft and pitch are the biggest, the effect of oil suction is the most obvious, this structure is not changing primary structure, in the case of not affecting retarder performance, by to splined shaft, working chamber housing carries out local location improvement, the circulation route of lubricating oil when changing speed device work in parallel and idle running, the parts in retarder are made to have obtained sufficient lubrication, reduce fault rate.

Description

A kind of splined shaft and retarder oil channel structures based on this splined shaft
Technical field
This utility model belongs to Retarder field in parallel, is specifically related to a kind of splined shaft and based on this splined shaft slow Speed device oil channel structures.
Background technology
As the Retarder of auxiliary brake of vehicle, on car load driving process, no matter whether retarder is in Duty, the element such as its internal rotor, axle, bearing is all carrying out high speed rotating along with the driving gear of retarder, because of This, carry out sufficient moistening to the element of these high speed rotating and be to ensure that the premise of retarder performance.Lubrication within retarder It is that the working media (retarder fluid) utilizing himself is lubricated.Retarder in parallel along with vehicle carry out high speed rotating time, Retarder is internal for sealing retarder fluid toward lubrication when there is retarder work at the second oil sealing of leakage in change speed gear box The fluid less hidden danger that can not fully this friction pair be lubricated cooling when fluid can not circulate in time or retarder dallies.As There is long bad lubrication in fruit, can reduce the sealing property of the second oil sealing, thus have influence on the overall usability of retarder Energy.
In existing Retarder in parallel, retarder, when normally working, has the retarder of abundance inside working chamber Fluid rotates element to rotor, bearing, splined shaft etc. and is lubricated, and retarder fluid updates at persistent loop.At the second oil At envelope, fluid flows at oil seal seat in the spline of rotor and splined shaft junction, then flows into oil sealing position.Rotor and front end Gap between lid is also filled with fluid, and now the fluid at oil sealing is unfavorable in the gap with rotor back flowing out, so oil sealing The fluid at place can not circulate renewal timely, if continuous working period is long, it is possible that oil sealing local location temperature mistake High problem.
Retarder, when idle running, has a small amount of fluid to motor element such as rotor, splined shaft, bearing, oil sealing in working chamber Etc. being lubricated, lowering the temperature.When idle running, a small amount of oil gas within working chamber is mixed under centrifugal effect by the rotor of high speed rotating Compound throws away the idle lubrication oil discharge passage above working chamber housing, and meanwhile, the high speed rotating of rotor blade makes rotor work Make intracavity and form rotor axis zone negative pressure, rotor edge region malleation.The fluid being thrown out of flows into heat through oil sump shell and hands over Parallel operation, again through oil sump shell from idle lubrication oil inlet passage flows into work carry out heat exchange with car load coolant after in heat exchanger Make cavity shell, flow to splined shaft rear end.Now fluid flows in the working chamber of rotor from the oil-feed tank of stator, the highest The rotor that speed rotates throws away, such persistent loop.The part fluid of splined shaft rear end is from three of rotor and splined shaft junction It flow at oil seal seat in spline, then the aperture from oil seal seat flow to oil sealing position, this position is lubricated cooling, finally Fluid flows out, when participating in idle running in the cyclic process of fluid from the gap between the rotor rear portion back of the body and drive end bearing bracket.But, for Lubrication lubricating oil seals this process, and the spline rear and front end on rotor does not has obvious pressure differential or axial force, so fluid is not Can sufficiently flow at oil sealing be lubricated oil cooling.When retarder is in high rotating speed idling conditions for a long time, oil sealing position Can not fully be lubricated cooling, oil sealing operating ambient temperature is higher, thus reduces performance and the service life of oil sealing.Cause , when retarder work or idle running, all there is the insufficient lubrication at oil sealing 2, thus have influence on the serviceability of retarder in this.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, it is provided that a kind of splined shaft and retarder based on this splined shaft Oil channel structures, in the case of not changing primary structure, not affecting retarder performance, by entering splined shaft, working chamber housing Row local location improves, the circulation route of lubricating oil when changing retarder work in parallel and idle running.
In order to achieve the above object, a kind of splined shaft, including axis body, the rear end axis of axis body offered oil passage, The rear end crossing oil passage offers female thread, and axis body offers some apertures corresponding with oil seal seat oil outlet, aperture and mistake Oil channel connection.
Described female thread is left-handed.
Described aperture is four, is angularly opened on the axial plane of axis body.
Retarder oil channel structures based on a kind of splined shaft, including working chamber housing, working chamber housing has and splined shaft Female thread match boss, land length and diameter in rear end, less than the size of female thread, splined shaft is arranged with driving gear, axle Hold, have the oil seal seat of oil outlet, rotor and stator, oil seal seat is arranged with the first oil sealing and the second oil sealing;
Aperture on described splined shaft is correspondingly arranged with the oil outlet of oil seal seat, and oil outlet and the second oil sealing are connected, the Two oil sealings have the oil duct for unnecessary fluid imports gap, rotor back, the oil duct in gap, rotor back and stator and rotor Between working chamber connection, rotor and splined shaft are connected by the vittate spline of tool, have spline at the internal spline of rotor Oil duct, spline oil duct connects with the aperture on splined shaft and the space between stator and rotor, the space between stator and rotor Connection connects with working chamber housing.
Compared with prior art, splined shaft of the present utility model offered oil passage, was revolved by lubricating oil by female thread Arrived in oil passage, and crossed oil passage and make outflow of lubrication oil to the position needing lubrication by aperture, it is possible to avoid existing due to flower Key axle does not has oil duct and the problem that produces insufficient lubrication.
This utility model is retarder oil channel structures based on a kind of splined shaft, by be arranged on splined shaft, the second oil sealing, Oil duct between rotor and stator, makes the total movement elements such as the internal oil sealing of retarder, rotor, stator and splined shaft carry out fully Lubrication, and the diameter of the female thread on splined shaft and pitch are the biggest, and the effect of oil suction is the most obvious, and this structure is not changing master In the case of wanting structure, not affecting retarder performance, by splined shaft, working chamber housing are carried out local location improvement, change When speed device work in parallel and idle running, the circulation route of lubricating oil, makes the parts in retarder obtain sufficient lubrication, reduces event Barrier rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing retarder;
Fig. 2 is this utility model retarder based on a kind of splined shaft oil channel structures schematic diagram;
Fig. 3 is the structural representation of this utility model splined shaft;
Wherein, 1 gear is driven;2 splined shafts;3 bearings;4 drive end bearing brackets;5 first oil sealings; 6 second oil sealings;7 rotors;8 stators;9 working chamber housings;10 oil seal seats;11 axis bodies; 12 cross oil passage;13 female threads.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
See Fig. 2 and Fig. 3, a kind of splined shaft, including axis body 11, the rear end axis of axis body 11 offered oil passage 12, the rear end crossing oil passage 12 offers female thread 13, and female thread is left-handed, axis body 11 offers some fuel-displaced with oil seal seat The aperture that hole is corresponding, aperture connects with crossing oil passage 12.
Preferably, aperture is four, is angularly opened on the axial plane of axis body 11
Retarder oil channel structures based on a kind of splined shaft, including working chamber housing 9, working chamber housing 9 has and spline Match boss, land length and diameter of axle 2 rear end female thread 13, less than the size of female thread 13, splined shaft 2 is arranged with and drives Moving gear 1, bearing 3, there is the oil seal seat 10 of oil outlet, rotor 7 and stator 8, oil seal seat 10 is arranged with the first oil sealing 5 and Two oil sealings 6;
Aperture on splined shaft 2 is correspondingly arranged with the oil outlet of oil seal seat 10, and oil outlet and the second oil sealing 6 are connected, the Two oil sealings 6 have an oil duct for unnecessary fluid imports gap, rotor 7 back, the oil duct in gap, rotor 7 back and stator 8 and Working chamber connection between rotor 7, rotor 7 is connected by having vittate spline with splined shaft 2, has at the internal spline of rotor Spline oil duct, spline oil duct connects with the aperture on splined shaft 2 and the space between stator 8 and rotor 7, stator 8 and turning Space connection between son 7 connects with working chamber housing 9.
The lubricating method of retarder oil channel structures based on a kind of splined shaft, when retarder works, lubricating method includes Following steps:
Step one, when retarder works, splined shaft 2 turns clockwise, on splined shaft for levogyrate inner thread 13 and work The cylinder boss made in cavity shell 9 matches, and female thread 13 revolves the fluid of splined shaft 2 rear end with the relative motion of cylinder boss Crossing in oil passage 12 on splined shaft axis;
Step 2, fluid, again by the aperture on splined shaft 2 and four apertures on oil seal seat 5, finally flow to the second oil Seal at 6, the relative motion of the second oil sealing 6 and oil seal seat 10 is lubricated and lowers the temperature;
Step 3, the fluid after lubrication cooling flows out through the gap at rotor 7 back side;
Step 4, the fluid being more than in splined shaft 2 oil duct flow to stator 8 through the spline that rotor 7 coordinates with splined shaft 2 and carries on the back Portion, enters back into and is circulated between stator 8 and rotor 7.
When retarder dallies, lubricating method comprises the following steps:
Step one, the gas mixture within working chamber housing 9 is thrown away under centrifugal effect by the rotor 7 of high speed rotating Idle lubrication oil discharge passage above working chamber housing 9, meanwhile, the high speed rotating of rotor 7 blade makes stator 8 and rotor 7 work Make intracavity and form rotor axis zone negative pressure, rotor edge region malleation;
Step 2, the fluid being thrown out of, through oil sump shell inflow heat exchanger, enters with car load coolant in heat exchanger Again through oil sump shell stream after the exchange of row heat, flow to splined shaft 2 rear end from idle lubrication oil inlet passage;
Step 3, due to transporting for levogyrate inner thread 13 is relative with working chamber housing 9 convex platform on splined shaft 2 axis Dynamic so that the fluid of splined shaft 2 rear end is pumped in the passage 12 of oil excessively at splined shaft 2 center, and flows out from fuel-displaced aperture, through oil It flow to, at the second oil sealing 6, the relative motion of the second oil sealing 6 and oil seal seat 10 is lubricated and is dropped after aperture on envelope seat 10 Temperature;
Step 4, finally the gap from rotor 7 back flows out to the working chamber between rotor, then from working chamber housing 9 Oil discharge passage in flow out;
Step 5, the spline concentrated flow coordinated with splined shaft 2 through rotor 7 more than fluid pumped into by splined shaft 2 female thread 13 To stator 8 back, enter back into and be circulated between stator 8 and rotor 7.
Lubricating method of the present utility model, when being worked by retarder and retarder idle running time two kinds of duties profit Sliding steps is rapid, makes the total movement elements such as the internal oil sealing of retarder, rotor, stator and splined shaft sufficiently lubricate, reduces The fault rate of oil sealing, the service life of the retarder of raising.

Claims (4)

1. a splined shaft, it is characterised in that include axis body (11), the rear end axis of axis body (11) offered oil passage (12), the rear end crossing oil passage (12) offers female thread (13), and axis body (11) offers some and oil seal seat oil outlet pair The aperture answered, aperture connects with crossing oil passage (12).
A kind of splined shaft the most according to claim 1, it is characterised in that described female thread is left-handed.
A kind of splined shaft the most according to claim 1, it is characterised in that described aperture is four, is angularly opened in axle On the axial plane of body (11).
4. retarder oil channel structures based on a kind of splined shaft described in claim 1, it is characterised in that include working chamber housing (9), working chamber housing (9) has match with splined shaft (2) rear end female thread (13) boss, land length and diameter less than interior The size of screw thread (13), splined shaft (2) is arranged with drive gear (1), bearing (3), have oil outlet oil seal seat (10), turn Son (7) and stator (8), oil seal seat (10) is arranged with the first oil sealing (5) and the second oil sealing (6);
Aperture on described splined shaft (2) is correspondingly arranged with the oil outlet of oil seal seat (10), and oil outlet and the second oil sealing (6) are connected Logical, the second oil sealing (6) has the oil duct for unnecessary fluid imports rotor (7) gap, back, the oil in rotor (7) gap, back Between road with stator (8) and rotor (7), working chamber connects, and rotor (7) is connected by having vittate spline with splined shaft (2), There is at the internal spline of rotor the aperture on spline oil duct, spline oil duct and splined shaft (2) and stator (8) and rotor (7) the space connection between, the space between stator (8) with rotor (7) connects with the oil duct of working chamber housing (9).
CN201620629868.2U 2016-06-22 2016-06-22 A kind of splined shaft and retarder oil channel structures based on this splined shaft Active CN205806277U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620629868.2U CN205806277U (en) 2016-06-22 2016-06-22 A kind of splined shaft and retarder oil channel structures based on this splined shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620629868.2U CN205806277U (en) 2016-06-22 2016-06-22 A kind of splined shaft and retarder oil channel structures based on this splined shaft

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105909696A (en) * 2016-06-22 2016-08-31 陕西法士特齿轮有限责任公司 Spline shaft, retarder oil channel structure based on spline shaft and lubricating method
CN106989120A (en) * 2017-06-05 2017-07-28 合肥工业大学 A kind of shaft orientation liquid feeding and the Retarder of tangential discharge opeing
CN112901640A (en) * 2021-01-14 2021-06-04 溧阳市新力机械铸造有限公司 Gear alloy shaft and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105909696A (en) * 2016-06-22 2016-08-31 陕西法士特齿轮有限责任公司 Spline shaft, retarder oil channel structure based on spline shaft and lubricating method
CN106989120A (en) * 2017-06-05 2017-07-28 合肥工业大学 A kind of shaft orientation liquid feeding and the Retarder of tangential discharge opeing
CN112901640A (en) * 2021-01-14 2021-06-04 溧阳市新力机械铸造有限公司 Gear alloy shaft and preparation method thereof

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