CN105848973B - Clutch apparatus for retarder - Google Patents

Clutch apparatus for retarder Download PDF

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Publication number
CN105848973B
CN105848973B CN201480062930.8A CN201480062930A CN105848973B CN 105848973 B CN105848973 B CN 105848973B CN 201480062930 A CN201480062930 A CN 201480062930A CN 105848973 B CN105848973 B CN 105848973B
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CN
China
Prior art keywords
clutch
axis
retarder
axle
sleeve
Prior art date
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Active
Application number
CN201480062930.8A
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Chinese (zh)
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CN105848973A (en
Inventor
J·费尔姆
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Scania CV AB
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Scania CV AB
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Filing date
Publication date
Priority to SE1351360-1 priority Critical
Priority to SE1351360A priority patent/SE538906C2/en
Application filed by Scania CV AB filed Critical Scania CV AB
Priority to PCT/SE2014/051323 priority patent/WO2015072912A1/en
Publication of CN105848973A publication Critical patent/CN105848973A/en
Application granted granted Critical
Publication of CN105848973B publication Critical patent/CN105848973B/en
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Classifications

    • 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
    • F16D67/00Combinations of couplings and brakes; Combinations of clutches and brakes
    • F16D67/02Clutch-brake combinations
    • F16D67/04Clutch-brake combinations fluid actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T10/00Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope
    • B60T10/02Control or regulation for continuous braking making use of fluid or powdered medium, e.g. for use when descending a long slope with hydrodynamic brake
    • 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
    • F16D11/00Clutches in which the members have interengaging parts
    • F16D11/14Clutches in which the members have interengaging parts with clutching members movable only axially
    • 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
    • F16D25/00Fluid-actuated clutches
    • F16D25/06Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch
    • F16D25/062Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces
    • F16D25/063Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially
    • F16D25/0635Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs
    • F16D25/0638Fluid-actuated clutches in which the fluid actuates a piston incorporated in, i.e. rotating with the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae
    • 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
    • F16D57/04Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades causing a directed flow, e.g. Föttinger type
    • 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
    • F16D11/00Clutches in which the members have interengaging parts
    • F16D2011/004Clutches in which the members have interengaging parts using an internal or intermediate axially slidable sleeve, coupling both components together, whereby the intermediate sleeve is arranged internally at least with respect to one of the components

Abstract

The present invention relates to a kind of clutch apparatus (4) being used for retarder (2), first axle (18) including the rotor (20) for being connected to retarder (2), the first clutch element (54) for being arranged to the second axis (22) engaged with driving source (1) and being arranged between first and second axis (18,22).Second clutch element (56) is arranged between the second axis (22) and first clutch element (54).The invention further relates to a kind of vehicle including such clutch apparatus and a kind of methods for connecting retarder.

Description

Clutch apparatus for retarder
Technical field
The present invention relates to a kind of clutch apparatus for retarder, a kind of vehicle including the clutch apparatus, with A kind of and method for connecting retarder.
Background technology
Retarder is for braking driving source, such as vehicle.Retarder is usually made of auxiliary brake, the auxiliary braking Device compensates the wheel brake of vehicle.To which the excessive wear for taking turns brake is avoided.Retarder is connected to vehicle via speed changer Gear-box or transmission shaft.In order to reduce energy loss and to reduce the fuel consumption of vehicle, speed changer and retarder It disengages and need not be disconnected with gear-box or transmission shaft when abrupt deceleration vehicle in retarder.Reducer shaft does not start in retarder When remains stationary or almost static.
The rotor and stator of retarder form annular surface, and the annular surface it is expected to obtain the braking from retarder It must be filled as early as possible with fluid when effect.If for making retarder be connected and disconnected from the clutch connecting with gear-box or transmission shaft Device device includes the synchronizing device with synchronous ring, then speed changer is connect just more with gear-box or being connected and disconnected from for transmission shaft Difficulty, because the annular surface of retarder includes the water of specific quantity, lead to referred to as residual moment can not ignore torque.Change speech It, needs residual moment to keep retarder to rotate due to remaining in certain quantity of fluid therein.Accelerate including passing through Rotating speed and during sliding into entire linker that is synchronous and then locking, synchronizing device, which must cope with, forces down speed discrepancy, although Residual moment can be left.If speed discrepancy becomes too much, synchronizing device may be damaged.In order to solve this problem, synchronous dress Setting can be set to cope with the residual moment with size, as a result, another type of synchronization must be used.
Document DE 1600243A1 show a kind of retarder for vehicle, and wherein stator can one side and chip clutch Device connects, and is on the other hand connect with form-lock formula clutch.When retarder is not actuated, both rotor and stator will Rotation.In order to start retarder in braking, stator must be arrived by means of lamella clutch and form-lock formula clutch brake Latched position is arrived in static and braking.
Document WO 2013083322A1 are related to one kind and being used for motor vehicle drive train, include two for connecting retarder A clutch.
Document DE 10305239A1 be related to it is a kind of for can linking retarder driving device, equipped with synchronous mode Clutch and jaw clutch.
Document WO 2004048167A1 show a kind of retarder for vehicle, and wherein stator is by means of chip clutch Device and form-lock formula clutch brake are to static and latched position.
Document US3777860A shows a kind of retarder for vehicle, and with rotor and stator, wherein rotor is installed It is connected and disconnected from connection at the drive shaft using clutch apparatus and vehicle, the clutch apparatus depends on vehicle brake Start and automatically controls.
Invention content
Although solution exists in the prior art, however, there remains further develop a kind of clutch for retarder Device device will not significantly hinder driving source when disengaging, and also have low weight and apply in driving source in retarder It is engaged when braking effect.
It is a further object to provide a kind of clutch apparatus for retarder, when disengaging in driving source Upper application substantially zero braking moment.
It is a further object to provide a kind of clutch apparatus for retarder, the fuel for reducing vehicle disappears Consumption.
It is a further object to provide a kind of clutch apparatus for retarder, the clutch apparatus includes Compact control element with a small amount of interaction component.
Another object of the present invention is to be to provide a kind of clutch apparatus, with the increased longevity for retarder Life and reliability.
These purposes utilize the retarder in beginning stated type to realize, retarder feature as defined in herein It limits.
For the clutch apparatus by low abrasion, this leads to the increased service life and reliability of clutch apparatus.From Clutch device means that retarder applies substantially zero braking moment in disengaged condition in driving source, this is to reduce vehicle Fuel consumption.Since control element is compact and includes a small amount of component, the complexity and weight of clutch apparatus Will be less, this reduces the fuel consumption of vehicle and increases the reliability of clutch apparatus.Two clutch element phase interactions With and it is integral with one another and engaged with common power source, it means that only needed between power source and clutch apparatus One means of communication.
Above defined purpose also realizes that the vehicle by providing herein using the vehicle that type is mentioned above Feature limit.Retarder applies substantially zero moment on vehicle, so as to reduce fuel consumption.Retarder is via clutch Controlled service life and the reliability increase for being connected and disconnected from connection and also meaning the retarder of device device.
Purpose above also utilize for be connected to beginning stated type retarder method realize, the method by Feature as defined in herein limits.
It is illustrated in the specific implementation mode of other advantages of the present invention below.
Description of the drawings
It is hereafter the description of the embodiment reference attached drawing as the preferred embodiment of the present invention, wherein:
Fig. 1 shows that the schematic side elevation of vehicle, the vehicle have the clutch according to the present invention for retarder Device,
It is described Fig. 2 shows the sectional view of the first embodiment of the clutch apparatus according to the present invention for retarder Clutch apparatus is in and disconnects state,
Fig. 3 shows the sectional view of the first embodiment of the clutch apparatus according to the present invention for retarder, described Clutch apparatus is in connection status,
Fig. 4 shows the flow chart according to the present invention for connecting the method for retarder, and
Fig. 5 shows the chart of different pressures rank.
Specific implementation mode
Fig. 1 shows the schematic side elevation of vehicle 1, and the vehicle 1 is equipped with retarder 2, the retarder and according to this The clutch apparatus 4 of invention is connected and is disconnected.Vehicle 1 is further equipped with gear-box 6, and the gear-box is connected to combustion hair Motivation 8, the combustion engine drive the driving wheel 10 of vehicle 1 via gear-box 6 and transmission shaft 12.Driving wheel 10 is equipped with wheel Brake 11.Control device 16 is arranged to control retarder 2.Retarder 2 includes rotatable first axle 18, and the first axle is matched The first speed probe 9 is had to detect the speed of first axle 18.Speed probe 9 is connected to control device 16.
Fig. 2 shows the sectional view of the clutch apparatus 4 for retarder 2 according to embodiment of the present invention, institutes State clutch apparatus be in disconnect state.First axle 18 is connect with the rotor 20 of retarder 2 and the second axis 22 is arranged to It is engaged with driving source.Embodiment shown according to fig. 2, driving source constitute vehicle 1, the wherein connection of retarder 2 and vehicle 1 It is executed via gear-box 6.In fig. 2, gear-box 6 is schematically shown.Second axis 22 equipped with for be arranged in gear-box 6 The teeth portion 24 that the speed changer 26 at place engages, the speed changer includes the cognate between output shaft 30 and the second axis 22 of gear-box 6 Wheel 28.Speed changer 26 can be arranged in gear-box 6.It is additionally provided with transmission shaft 12 on the output shaft 30 of gear-box.Cogwheel 28 it is meant that the output shaft 30 of gear-box always drives the second axis 22 when transmission shaft 12 rotates.Preferably, pass through speed changer 26 Realize 3:1 transmission ratio, but other transmission ratios be also it is possible, such as 1:1.Second speed probe 31 is arranged in the second axis At 22, or it is arranged on cogwheel 28, to measure the speed of the second axis 22 or cogwheel 28.Second speed probe 31 is with suitable When mode is connected to control device 16 (Fig. 1).
First axle 18 is preferably by bearing 36 in gearbox-case 38, and is mounted on speed reducer housing 40 In.Be provided with rotor 20 in first axle 18, the rotor in connection status with the speed of the output shaft 30 with gear-box 6 at The speed of direct ratio rotates.Stator 42 is connected to speed reducer housing 40 and therefore will not rotate.
The hollow space that rotor 20 and 42 Combining with terrain of stator circularize, referred to as annular surface 44, the hollow space exist Retarder 2 is filled with fluid 46 (such as water) by opening 47 when executing braking moment on the output shaft 30 of gear-box 6, so as to Abrupt deceleration vehicle 1 is to reduce the speed of vehicle 1.Braking effect occurs, because rotor 20 and stator pairs setting system have blade or shovel portion 48, flowing of the fluid in annular surface 44 is generated when rotor 20 rotates.The shovel of the flowing and rotor 20 and stator 42 of fluid Portion 48 interacts and generates reaction force, and the reaction force forms braking effect.The rotating speed of rotor 20 is higher, annular surface Fluid Volume in 44 is bigger, then reaction force is bigger, to which torque becomes bigger.Retarder 2 need not abrupt deceleration vehicle 1 the case where Under, fluid 46 is discharged annular surface 44, and the fluid by vapor portion replaces, it is meant that the shovel portion of rotor 20 and stator 42 48 mainly will generate flow of vapor in annular surface 44.Flow of vapor leads to the undesirable reaction in first axle 18 Power, the reaction force generate braking moment on the output shaft 30 of gear-box 6.Braking moment from retarder 2 means The fuel consumption of vehicle 1 increases when the combustion engine 8 of vehicle 1 applies torque.The friction of bearing from first axle 18 is sent out Go out reaction force, it means that increased fuel consumption.For this reason, first axle 18 can be not used in braking vehicle in retarder 2 It is disconnected from the output shaft 30 of gear-box 6 when 1.The fuel consumption of vehicle 1 is so as to reducing.Annular surface 44 is set to fill It is completed via fluid circuit with discharge fluid 46.
Annular surface 44 must be filled with fluid 46 as early as possible when it is expected to obtain the braking effect from retarder 2.Initially Slowly filling means to lack the braking effect from retarder 2, leads to the wheel brake for excessively using vehicle 1, the wheel system Dynamic device will be exposed to unnecessary abrasion.
Clutch apparatus 4 according to the present invention means first axle 18 and to which retarder 2 can be disconnected from gear-box 6 Connection, it is meant that retarder 2 does not have braking effect when retarder 2 is disengaged on vehicle 1.When retarder 2 is to be joined, subtract Fast device 2 must be mechanically connected with 6 output shaft 30 of gear-box in a manner of rapid and is efficient.In order to realize this point, first and Two clutch elements 54,56 are arranged between first and second axis 18,22.First clutch element 54 by board type friction from Clutch forms and second clutch element 56 is made of the form-lock formula clutch of jaw clutch type.
First clutch element 54 includes the inner sleeve 57 that can be moved in first axle, and the inner sleeve passes through the One spline 59 is non-rotatably locked with first axle.Inner sleeve 57 is arranged to move axially period by first clutch element 54 are connected and disconnected from connection.
Second clutch device 56 includes the casing 58 that can move axially, described sleeve pipe equipped with suitable for the second axis 22 Holder 61 on corresponding teeth portion 62 engage teeth portion 60.Second axis 22 is coaxially arranged with first axle 18 and the second axis 22 are preferably by rolling bearing 63 in first axle 18.The outer sleeve 58 that can be moved axially can be in inner sleeve It moves axially on 57, and is non-rotatably locked with inner sleeve 57 by the second spline 67.
When retarder 2 it is to be joined so as to abrupt deceleration vehicle 1 when, clutch apparatus 4 is to engage, so that first axle 18 is via One clutch element 54 is connect with the second axis 22.Since the second axis 22 rotates and 18 remains stationary of first axle from the beginning, Therefore first clutch element 54 will be such that first axle 18 rotates.According to embodiment, first clutch element 54 be chip from Clutch passes through the first and second axis of frictional connection 18,22.However, cannot to be delivered in retarder 2 to be braked for lamella clutch The braking moment occurred when vehicle 1.For this reason, will be made of form-lock formula clutch (such as jaw clutch) second Clutch element 56 connects.Second clutch element 56 is dimensioned so as to transmit the big braking moment applied by retarder 2.
Fig. 3 shows the sectional view of the clutch apparatus 4 according to the present invention for retarder 2, at the clutch apparatus In connection status.Outer sleeve 58 is dynamic along being moved up towards the direction of holder 61 in inner sleeve, so as to be formed in outer sleeve 58 and holder 61 on teeth portion 60,62 be engaged with each other, the result is that outer sleeve 58 and holder 61 connect in a form-locking manner Connect the first and second axis 18,22.
As shown in figs 2 and 3, first axle 18 is equipped with the first and second centre bores 64,66.It first hole 64 will lubrication Agent is directed to bearing 63 and is directed to clutch apparatus 4, for reducing friction, lubrication and cooling purpose.Second hole 66 guides Forced air from dynamical element 91, and further guide the forced air by pressurized air passage 70, to control Clutch apparatus 4 processed, the dynamical element are preferably forced air compressor reducer.Inner sleeve 57 is equipped with first piston part 72 and outer sleeve 58 equipped with second piston part 74.First and second piston portions 72,74 are circular and design At being axially moved in the first and second cylindrical portions 76,78 respectively, first and second cylindrical portions be it is circular simultaneously And it is arranged in first axle 18.Cylindrical portions 76,78 can non-rotatably be locked using form-lock part 90 relative to axis.Add Pressure air is directed to corresponding first and second cylindrical portions 76,78 via pressurized air passage 70, to move first and the Two piston portions 72,74.The connection of the first cylinder part 76 and pressurized air passage 70 has than the second cylinder part 78 and adds Press the smaller surface of connection of air duct 70.Therefore, the first cylinder part 76 and the connection of pressurized air passage 70 will rise To the effect similar to valve 79, it is meant that the air flowing and pressure between cylindrical portions 76 and pressurized air passage 70 are balanced Delay.
(the first back-moving spring 80 is arranged between first axle 18 and inner sleeve 57.(the first back-moving spring 80 makes every effort to make inside Casing 57, which returns to, makes the position that inner sleeve 57 is not engaged with first clutch element 54.The setting of second back-moving spring 82 is the Between one axis 18 and outer sleeve 58.Second back-moving spring 82 makes every effort to make outer sleeve 58 back to making outer sleeve 58 not with the The position of two clutch elements 56 engagement.
First clutch element 54 is arranged to that first group of plate 84 is made to be arranged in first axle 18, and second group of plate 86 is made to set It sets on holder 61.When inner sleeve 57 is along towards plate 84, when 86 direction axially moves, these plates are compressed, so that Friction between one and second group of plate 84,86 leads to the moment of reaction occur between first and second axis 18,22.Reaction force Square means that first axle 18 will be pulled by the second axis 22, so that the second axis 22 drives first axle 18.
When retarder 2 it is to be joined so as to abrupt deceleration vehicle 1 when, clutch apparatus 4 is to engage, so that first axle 18 is via One clutch element 54 is connect with the second axis 22.Since originally, the second axis 22 rotates and 18 remains stationary of first axle, therefore the One clutch element 54 will be such that first axle 18 rotates.Forced air is applied from the valve 88 or switch for being connected to the first dynamical element 91 It is added to clutch element 54.Valve 88 or switch in the dynamical element 91 of forced air compressor reducer form are connected to by control device 16 controls (Fig. 1).Since first clutch element 54 is lamella clutch, it is to be braked that retarder 2 cannot be delivered in The braking moment occurred when vehicle 1.The reason is that lamella clutch is too small, and if by the lamella clutch size It is set to transmit whole braking moments, then the lamella clutch will be necessarily large and bulky very much.For this reason, second clutch member Part 56 is connected when the first and second axis 18,22 arrived substantially the same rotating speed.56 size of second clutch element is set At the big braking moment applied by retarder 2 when annular surface is filled with fluid can be delivered in.
By the area that the piston portion that (the first back-moving spring 80, piston portion 72 and air pressure act on is arranged Domain, and the region for the piston portion that resetting spring 82, piston portion 74 and air pressure act on is set, first is multiple 80 spring force of position spring will be by from the valve 88 being connect with the dynamical element 64 in forced air compressor reducer form or opening The air pressure of pass overcomes, and the air pressure is less than the spring force of second back-moving spring 82.In other words, it needs than overcoming first The higher air pressure of air pressure needed for the spring force of resetting spring 80 is to overcome the spring force of second back-moving spring 82.
When clutch apparatus 4 connects at first time point t1, forced air passes through pressurization with first pressure rank p1 Air duct 70 supplies, and the forced air impacts both first and second piston portions 72,74 with the first power.First pressure grade Other p1 is suitable for that the spring force of (the first back-moving spring 80 is made to be overcome, but the spring force of second back-moving spring 82 is not overcome. To which first piston part 72 and inner sleeve 57 will move and press along the axial direction towards first clutch element 54 Contract the one the second plates 84, and 86, so that first clutch element 54 engages.At the same time, outer sleeve 58 is not by air Pressure axial direction status is moved.When first clutch element 54 engages, first axle 18 will be pulled by the rotation of the second axis 22.Pass through The rotation of the first and second axis 18,22 is measured using the first and second speed probes 9,31, it may be determined that when is first axle 18 Reach the rotating speed identical or substantially the same as the second axis 22.When first axle 18 arrived or substantially phase identical as the second axis 22 With rotating speed when, air pressure the second time point t2 at pass through valve 88 increase to second pressure rank p2 so that outer sleeve 58 overcome the spring force of second back-moving spring 82 by the second power.To which, outer sleeve 58 will be via acting on second piston Forced air edge on part 74 is axially moved towards 61 direction of holder.When outer sleeve 58 reaches holder 61, outer cover The teeth portion 60 of pipe 58 will the engagement of teeth portion 62 corresponding with holder 61.
When second clutch element 56 connects, the annular surface 44 of retarder 2 is filled with fluid 46, it means that is slowed down Device 2 will apply braking maneuver on vehicle 1, as described above.According to above, retarder 2 is described as being arranged In vehicle 1, so as to abrupt deceleration vehicle 1, it is also possible to use retarder 2 according to the present invention for other application occasion.According to Above, vehicle 1, combustion engine 8, gear-box 6 or transmission shaft 12 may be constructed driving source, and the driving source is directly or indirectly Ground is connected to retarder 2.However, other driving sources can also be connected to retarder 2.
If the teeth portion 60,62 of outer sleeve 58 and holder 61 eventually arrives at and the teeth portion 62 of holder 61 is made to prevent outer sleeve 58 axial movements and the position to prevent the teeth portion 60 of outer sleeve 58 from being engaged with the teeth portion 62 of holder 61, the then teeth portion Will when annular surface 44 is filled with fluid be engaged with each other because the big braking moment from retarder 2 will overcome Frictional force in one clutch element 54 and the first and second plates 84,86 is made to reverse relative to each other.When the second axis 22 is opposite When first axle 18 is reversed, holder 61 will be reversed relative to outer sleeve 58, the result is that the teeth portion 62 of holder 61 no longer prevents Outer sleeve 58 moves axially, so that the teeth portion 60 of outer sleeve 58 will be engaged with the teeth portion 62 of holder 61.In order to Locking torque locks second clutch element 56 in the case of increasing too many not in first clutch element 54, valve 79 can be with It is inserted between air pressure passage 70 and the first cylinder part 76.The increase of air pressure is next in the first cylinder part 76 Postpone relative to the second cylinder part 78.If the insertion of valve 79 is it is meant that teeth portion 60 and 62 is facing with each other and 22 He of axis 18 rotating speed synchronizes, then the second axis 22 can more easily be turned round when the braking moment of retarder increases relative to first axle 18 Turn, and therefore the teeth portion 60 of outer sleeve 58 can be easier with the teeth portion 62 of holder 61 and more quickly engage.Valve 79 Insertion it is meant that if the rotating speed of axis 22 and 18 is asynchronous or near-synchronous, then the rotating speed of axis 18 is in second clutch element 56 engaged with the teeth portion 62 of holder 61 before cannot increase it is too many.This makes the second clutch that must reach controlled speed discrepancy Device element 56 is advantageous in the case of being engaged with the teeth portion 62 of holder 61.
When retarder 2 disconnects, annular surface 44 empties fluid, and then decrease in air pressure to first pressure Rank p1, so that the spring force of second back-moving spring 82 is no longer overcome by air pressure.To which second back-moving spring 82 will make The teeth portion 60 of outer sleeve 58 removes its engaging with the teeth portion 62 of holder 61.Subsequent valve 88 is closed, so that decrease in air pressure To atmospheric pressure, then the spring force of (the first back-moving spring 80 is no longer overcome by air pressure.So that (the first back-moving spring 80 will Inner sleeve 57 can be made to be moved at 84,86 a distance of plate away from first clutch element 54, so that first clutch element 54 disconnect and first axle 18 are made no longer to be driven by the second axis 22.To which first axle 18 will not rotate any more or will be very It is rotating slowly, this causes impact of the first axle 18 on the second axis 22 to become bottom line.Instead of reducing in two steps Air pressure can be continuously reduced to atmospheric pressure by air pressure from second pressure rank p2.
A kind of method for connecting retarder 2 will be explained by means of Figure 4 and 5.Flow in Fig. 4 is illustrated first In step a), the first power realized by the first air pressure is applied to first clutch element 54, so that the second axis 22 promotes the One axis 18 is rotated with the speed substantially the same with the second axis 22.In second step b), by more than the first air pressure The second power that two air pressures are realized is applied to second clutch element 56, so as to the first and second axis 18,22 and be connected to each other. In third step c), retarder 2 is started by fluid 46 is supplied in the annular surface 44 of retarder 20.
Chart in Fig. 5 show the first power in step a) how at time point t1 to be in the first forced air rank The forced air of p1 generate and step b) in the second power how at time point t2 to be in the second forced air rank p2 Forced air generate, forced air rank p2 be more than forced air rank p1.
Hereinbefore defined component and feature can in the context of the present invention the different embodiments of defined it Between combine.

Claims (18)

1. for the clutch apparatus of retarder (2), including:
First axle (18) is connect with the rotor (20) of retarder (2);
Second axis (22) is arranged to engage with driving source (1);And
First clutch element (54) is arranged between first axle (18) and the second axis (22);
It is characterized in that, second clutch element (56) is arranged between the second axis (22) and first clutch element (54), with And
Second clutch element (56) includes the outer sleeve (58) that can be moved axially, the outer sleeve equipped with suitable for The teeth portion (60) for corresponding teeth portion (62) engagement being arranged on holder (61), the holder are arranged on the second axis (22).
2. clutch apparatus according to claim 1, which is characterized in that first clutch element (54) and second clutch Element (56) is integral with one another and is started by common power source (91).
3. clutch apparatus according to claim 1 or 2, which is characterized in that first clutch element (54) be friction from Clutch.
4. clutch apparatus according to claim 3, which is characterized in that friction clutch is lamella clutch.
5. clutch apparatus according to claim 1 or 2, which is characterized in that second clutch element (56) is shape lock Fixed pattern clutch.
6. clutch apparatus according to claim 5, which is characterized in that form-lock formula clutch is jaw clutch.
7. clutch apparatus according to claim 1 or 2, which is characterized in that first clutch element (54) includes can The inner sleeve (57) moved axially in first axle (18), the inner sleeve pass through the first spline (59) and first axle (18) Non-rotatably lock.
8. clutch apparatus according to claim 1, which is characterized in that outer sleeve (58) can be in inner sleeve (57) Upper axial movement, the outer sleeve (58) and inner sleeve (57) by the second spline (67) with non-rotatably lock each other It is fixed.
9. clutch apparatus according to claim 1 or 2, which is characterized in that the second axis (22) equipped with for setting The teeth portion (24) of cogwheel (28) engagement in driving source (1).
10. clutch apparatus according to claim 1 or 2, which is characterized in that inner sleeve (57) is equipped with first piston Partly equipped with second piston part (74), the first piston part (72) and second is lived for (72) and outer sleeve (58) Plug portion (74) is arranged to interact with corresponding the first cylinder part (76) and the second cylinder part (78).
11. clutch apparatus according to claim 10, which is characterized in that valve (79) is arranged in the first cylinder part (76) and with the first cylinder part (76) and the second cylinder part (78) between the pressurized air passage (70) connecting, to realize Predetermined pressure between the first cylinder part (76) and pressurized air passage (70) is balanced.
12. clutch apparatus according to claim 10, which is characterized in that (the first back-moving spring (80) is arranged in first axle (18) between inner sleeve (57) and second back-moving spring (82) setting first axle (18) and outer sleeve (58) it Between, wherein the spring force of second back-moving spring (82) is arranged to that Billy is needed to be resetted with first with second piston part (74) together The first piston part (72) of spring overcomes the sky of the air pressure bigger needed for the spring force from (the first back-moving spring (80) Atmospheric pressure overcomes the spring force of second back-moving spring (82).
13. clutch apparatus according to claim 1 or 2, which is characterized in that the second axis (22) is coaxial with first axle (18) Ground is arranged.
14. clutch apparatus according to claim 1 or 2, which is characterized in that the second axis (22) is via rolling bearing (63) In first axle (18).
15. clutch apparatus according to claim 1 or 2, which is characterized in that driving source (1) is the combustion hair in vehicle Motivation.
16. vehicle, which is characterized in that include the clutch apparatus (4) according to any one of claim 1-15.
17. the method for connecting retarder (2),
It is characterized by comprising the following steps:
A) the first power realized using the first air pressure is applied to and is arranged between first axle (18) and the second axis (22) First clutch element (54), the first axle are connect with the rotor (20) of retarder (2), and second axis is arranged to and drives Source (1) engages, so that the second axis (22) enables first axle (18) be rotated with the rotating speed substantially the same with the second axis (22),
B) it will be applied to and be arranged in the second axis (22) using the second power realized more than the second air pressure of the first air pressure Second clutch element (56) between first clutch element (54) so that first axle (18) and the second axis (22) with each other Connection, and
C) fluid (46) are added by the annular surface (44) to retarder (2) by retarder (2) is made to engage.
18. according to the method for claim 17, which is characterized in that the first power in step a) utilizes empty in the first pressurization The forced air of gas rank (p1) generate and step b) in the second power utilize it is in the second forced air rank (p2) plus Air is pressed to generate, forced air rank (p2) is more than forced air rank (p1).
CN201480062930.8A 2013-11-18 2014-11-07 Clutch apparatus for retarder Active CN105848973B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE1351360-1 2013-11-18
SE1351360A SE538906C2 (en) 2013-11-18 2013-11-18 Retarder coupling device, vehicles including such coupling device and method for coupling a retarder
PCT/SE2014/051323 WO2015072912A1 (en) 2013-11-18 2014-11-07 Clutch device for a retarder

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CN105848973B true CN105848973B (en) 2018-09-25

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DE (1) DE112014004796T5 (en)
SE (1) SE538906C2 (en)
WO (1) WO2015072912A1 (en)

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DE102018004193A1 (en) * 2017-11-22 2019-05-23 Borgwarner Inc. multi-plate clutch
SE542899C2 (en) * 2018-09-18 2020-08-18 Scania Cv Ab Retarder Arrangement and Related Devices
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DE112014004796T5 (en) 2016-07-14
SE1351360A1 (en) 2015-05-19
CN105848973A (en) 2016-08-10
WO2015072912A1 (en) 2015-05-21
SE538906C2 (en) 2017-02-07

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