CN103363074A - Casting mould structure for a gearbox housing and the gearbox housing - Google Patents
Casting mould structure for a gearbox housing and the gearbox housing Download PDFInfo
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- CN103363074A CN103363074A CN2013100984580A CN201310098458A CN103363074A CN 103363074 A CN103363074 A CN 103363074A CN 2013100984580 A CN2013100984580 A CN 2013100984580A CN 201310098458 A CN201310098458 A CN 201310098458A CN 103363074 A CN103363074 A CN 103363074A
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- Prior art keywords
- pump chamber
- oil pump
- electric oil
- transmission
- case
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/40—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the assembly or relative disposition of components
- B60K6/405—Housings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Details Of Gearings (AREA)
- Control Of Transmission Device (AREA)
Abstract
A casting mould structure for a gearbox housing and the gearbox housing are provided; a pump chamber of an electric oil pump can be casted in one body with the housing in a space close to a differential device of a hydraulic control valve on a lower portion of the gearbox housing. The casting mould structure for the gearbox housing is provided with the following parts: a shift gear containing portion containing the shift gear of a CVT; the differential device covering outside and is adjacent to each shaft of the shift gear and is provided with an output shaft parallel with the shafts; a differential device containing portion configured by offsetting towards an axial direction end relative to the shift gear; a valve unit mounting portion configured on a lower portion of the housing when being mounted on the vehicle; the electric oil pump chamber in a cylinder shape is arranged in a concave portion outside an outer side face of the differential device containing portion through offsetting; the pump chamber is configured on a portion close to the valve unit mounting portion below the output shaft, and an axis faces a direction overcrossing the axis direction; a slot for casting axis direction rib extending in the axis direction on a circumference surface is arranged on a connecting portion between a first model and a second model forming the circumference surface of the electric oil pump chamber.
Description
Technical field
The present invention relates to be equipped on the automobile casting die structure and case of transmission with the case of transmission that carries electric oil pump for casting.
Background technique
In recent years, exploitation has various technology for the burn-up rate that promotes automobile improves.For example, in the situation of the idling stop vehicle with system that the idle running that makes motor when stopping stops, can promoting by engine stop the raising of burn-up rate.In addition, in the situation of the motor vehicle driven by mixed power that except motor (prime mover), also possesses motor (motor generator set) as power source, by utilizing motor to replace being difficult to obtain the motor of output torque when when starting or the low speed driving, when slowing down, utilize the regeneration brake recovered energy, can promote the raising of burn-up rate.
On the other hand, in the situation that use motor as power source, from guaranteeing the viewpoint of torque and raising burn-up rate, speed changer is necessary.Wherein, in the situation that automatic transmission generally makes each action by hydraulic control.For example, in the situation that variable v-belt drive, when output pulley clamps band or regulates gear ratio by the movement of movable pulley, need the oil pressure of action oil, also need action oil as the dynamic medium of torque-converters.The hydraulic pressure supply source is necessary in such hydraulic control system, in the situation of the automobile that possesses motor, from being easy to guarantee this viewpoint of pump capacity, as the hydraulic pressure supply source, usually uses the engine-driven oil pump.
But, stop the situation of idle running or in the situation that only motor is travelled as power source in the motor vehicle driven by mixed power, because engine stop can not be guaranteed the oil pressure that speed changer is required by the engine-driven oil pump at idling stop vehicle.Therefore, developing and except the engine-driven oil pump, also equipping electric oil pump, when engine stop, can utilize electric oil pump to guarantee the technology of oil pressure.
In this case, how electric oil pump is configured as problem with respect to speed changer.
For example, in patent documentation 1 illustration the gearbox unit of variable v-belt drive as shown in Figure 10, in shell 200, take in by primary pulley 210, secondary pulley 220 and with each one and the differential motion 240 of 230 stepless speed variators that consist of.Primary pulley 210, consist of with the axle center of the left and right output shaft (transmission shaft) of each axle center of secondary pulley 220 and differential motion 240 axle center of primary pulley 210 and the differential motion 240 leg-of-mutton mode as bottom is configured.
But the suction port of electric oil pump 270 and exhaust port engage with the mating face of shell 200 in the periphery of shell 200, therefore, and the pump chamber of electric oil pump 270 and shell 200 split settings.
According to this technology since electric oil pump 270 is set at the recess 260 of shell 200 peripheries of gearbox unit overlapping with hydraulic control valve 250, so can make the formation of gearbox unit compact.
Patent documentation 1:(Japan) JP 2001-260674 communique
When electric oil pump is equipped on the shell of variable v-belt drive, utilize like that the recess 260 of shell 200 peripheries by the technology of patent documentation 1 described above, can make the formation of gearbox unit compact.In addition, because electric oil pump is configured in the position near hydraulic control valve, so can also consist of compactly by the oily oil circuit that circulates under reach.
But, guarantee in will the accommodation space at other parts in the situations such as space above the end of the outstanding hydraulic control valve 250 in the side of primary pulley 210, sometimes require electric oil pump is configured in other spaces around the shell 200.
But wish not change patent documentation 1 such primary pulley 210, secondary pulley 220 and differential motion 240 or the basic configuration of hydraulic control valve 250, and make the mode that oil circuit also can be compact when similarly making the formation compactness of gearbox unit with the technology of patent documentation 1, the pump chamber of configuration electric oil pump.
Therefore, consider below primary pulley shown in Figure 10 210 and differential motion 240, at another of hydraulic control valve 250 distolateral be differential motion 240 near the configuration electric oil pump.In this case, require electric oil pump to be configured not produce the mode of interfering with the outstanding output shaft (transmission shaft) in outside from from differential motion 240 to shell.
In addition, in the situation of the technology of patent documentation 1, because pump chamber and the shell 200 split settings of electric oil pump 270 so pump chamber and shell 200 are engaged, need to try every possible means to prevent the junction leakage of oil and absorb machining tolerance etc.
In this, it is desirable to the shell of the pump chamber of electric oil pump and speed changer integrally formed.
But because the shell of speed changer forms by casting, in this case, must make configuration and the shape of the pump chamber of electric oil pump be suitable for casting, the required mold of this casting must be able to not hinder case of transmission yet and makes.
Summary of the invention
The present invention sets up in view of such problem, its purpose is to provide transmission case body and function casting die structure and case of transmission, can keep the basic layout of existing speed changer, near the space of differential motion side that simultaneously can be the hydraulic control valve of the bottom of case of transmission casts pump chamber and the case of transmission of electric oil pump integratedly.
(1) to achieve these goals, first aspect present invention provides a kind of case of transmission casting die structure, outer side surface to case of transmission is cast, described case of transmission possesses: the gear container, and it takes in the gear of the stepless speed variator that is made of primary pulley, secondary pulley and band; The differential motion container, its from the main shaft of outer side covers and described gear and countershaft in abutting connection with and have with the parallel to an axis of described main shaft and countershaft about the differential motion of output shaft (transmission shaft), configure to a described axial distolateral skew with respect to described gear container; The valve cell assembly department, it is configured in the outer casing underpart that becomes the below when vehicle-mounted, be used for installing the hydraulic control valve cell, it is characterized in that, the recess of described case of transmission in the outside of the outer side surface that is formed at described differential motion container by described skew is provided with the electric oil pump chamber of tubular, this electric oil pump chamber is configured in the position near described valve cell assembly department of described output shaft below, make axis towards with described axial direction of intersecting, described case of transmission casting die structure has: the first model, and it is along the part of the outer circumferential face of the part of the described outer side surface that moves axially and form described case of transmission and described electric oil pump chamber; The second model, its axial direction along described electric oil pump chamber moves and forms the remainder of the described outer side surface of the remainder of described outer circumferential face of the inner peripheral surface of described electric oil pump chamber and described electric oil pump chamber and described case of transmission, is formed with at the joining portion of described first model of the described outer circumferential face that forms described electric oil pump chamber and described the second model for the first groove that forms the axial rib of extending along described axial direction at described outer circumferential face.
(2) it is desirable to, one distolateral at the described axis of described electric oil pump chamber, number of unmolulding directions at described the second model disposes the motor assembly department that motor is installed, exhaust port is arranged and continuous the first oil circuit from described exhaust port in another distolateral internal configurations of the described axis of described electric oil pump chamber, extend to the position corresponding with the described inside of described electric oil pump chamber than described axial rib Lower Half more on the lower in the cylindraceous described outer circumferential face of described axial rib and described electric oil pump chamber always, be provided with at described the second model and form described motor assembly department, described oil circuit, the position of the Lower Half of described axial rib and the Lower Half of described outer circumferential face.
Like this, if another the distolateral inside at the axis of electric oil pump chamber forms the first oil circuit that is connected with the hydraulic control valve cell, then in configuration and processing, can both form efficiently the first oil circuit, but opposite, can since the shape of the first oil circuit and liquid fluidity during to casting cause and hinder and after casting, produce pore, so wish to avoid this problem.At this on the one hand, at the part outer circumferential face cylindraceous outside that is formed at electric oil pump chamber and oil circuit, that extend at axial direction, be equipped with the axial rib of extending at axial direction, the first groove that forms this axial rib becomes stream and promotes to the liquid fluidity of the inside of electric oil pump chamber the generation of inhibition pore.
(3) it is desirable to, locate above more in the described axial rib of ratio at the position that disposes described the first oil circuit of the described inside of described electric oil pump chamber, dispose that described outer circumferential face than described electric oil pump chamber more caves in and with described recess sunk part in succession, dispose the described output shaft of described differential motion at described sunk part, in described the first model, be provided with the position of the first half that forms the first half comprise the described recess of described sunk part, described axial rib and described outer circumferential face.
In this case, because the position at configuration first oil circuit of the inside of electric oil pump chamber, more cave in and configure sunk part than the outer circumferential face of electric oil pump chamber, dispose the output shaft of differential motion at this sunk part, therefore, can avoid the interference of the output shaft that sets position and differential motion of the first oil circuit.This sunk part the opposition side of the number of unmolulding directions of the second model form and frequently the outer circumferential face of electric oil pump chamber more cave in, although therefore can not form in the second model, this part is formed by described the first model, so the part that can landform without prejudice be in depression.
(4) it is desirable to, the described internal configurations in described electric oil pump chamber has: the second oil circuit, and it is towards the number of unmolulding directions of described the first model, and the front end of intermediate portion and described the first oil circuit intersects and stops up front end opening; The 3rd oil circuit, it is towards the number of unmolulding directions of described the second model, intermediate portion intersects with the intermediate portion of described the second oil circuit, front end is connected with described hydraulic control valve cell and stops up the cardinal extremity opening portion, in described the first model, be provided with the position that forms described the second oil circuit, in described the second model, be provided with the position that forms described the 3rd oil circuit.
In this case, (for example can insert from the cardinal extremity opening portion of the front end opening of the second oil circuit or the 3rd oil circuit inside components that configuration should be equipped on oil circuit inside, safety check), opening portion is blocked and sealed after inside components is installed, but as mentioned above, promote liquid to the mobile of electric oil pump chamber interior and suppress the generation of pore owing to the first groove that forms axial rib becomes stream, therefore can suppress the reduction of the sealability that the generation of pore causes.
(5) it is desirable to, at described first model of the described outer circumferential face that forms described electric oil pump chamber and the joining portion of described the second model, be formed with from described axial rib at the first half of described outer circumferential face and form along the second groove of the circular-arc rib that circumferentially extends continuously.
In this case, can promote liquid fluidity and can guarantee rigidity and the intensity of electric oil pump chamber, in addition, when casting, the second groove becomes stream and liquid fluidity is improved.
(6) it is desirable to, be formed with three-flute at described first model of the outer side surface of the described case of transmission that forms the position corresponding with the described inside of described electric oil pump chamber and the joining portion of described the second model, described three-flute forms the first continuous from described axial rib additional ribs, be formed with the 4th groove at described first model of the outer side surface that forms described differential motion container and the joining portion of described the second model, described the 4th groove forms the second continuous from described circular-arc rib additional ribs.
In this case, can guarantee rigidity and the intensity of electric oil pump chamber and differential motion container, in addition, when casting, three-flute and the 4th groove become stream and liquid fluidity are improved.
(7) it is desirable to, be provided with hole section that described output shaft connects in described differential motion container, around the section of described hole protuberance boss part, around described boss part the radial rib of protuberance radially, in described the first model, be provided with the position that forms described hole section, described boss part and described radial rib.
In this case, can guarantee hole section rigidity and the intensity on every side of the output shaft perforation of differential motion, can attenuate hole section basic wall thickness on every side.
(8) it is desirable to, the outer end that be equipped with the axle abutment wall section of the described main shaft of supporting and described countershaft, the surrounding wall portion around the described axle abutment wall section in the gear container of described case of transmission, is combined with the speed changer cover in the edge, outer end of described surrounding wall portion is facial, is provided with the position of the outer side surface, described surrounding wall portion and the described outer end face that form described axle abutment wall section in described the first model.
(9) second aspect present invention provides a kind of case of transmission, uses above-mentioned transmission case body and function casting die structure to form by casting.
(10) third aspect present invention provides a kind of case of transmission, and it forms by casting, possesses: the gear container of taking in the gear of the stepless speed variator that is made of primary pulley, secondary pulley and band; From the main shaft of outer side covers and described gear and countershaft in abutting connection with and have with the parallel to an axis of described main shaft and countershaft about the differential motion of output shaft (transmission shaft), the differential motion container that configures to a described axial distolateral skew with respect to described gear container; Be configured in the outer casing underpart that becomes the below when vehicle-mounted, be used for installing the valve cell assembly department of hydraulic control valve cell, it is characterized in that, the recess of described case of transmission in the outside of the outer side surface that is formed at described differential motion container by described skew possesses the electric oil pump chamber of tubular, the electric oil pump chamber of described tubular is configured in the position near described valve cell assembly department of described output shaft below, make axis towards with described axial direction of intersecting, the described outer circumferential face in described electric oil pump chamber is formed with the axial rib of extending along described axial direction.
(11) it is desirable to, one distolateral at the described axis of described electric oil pump chamber, number of unmolulding directions along described the second model disposes the motor assembly department that motor is installed, another distolateral internal configurations of the described axis of described electric oil pump chamber exhaust port is arranged and from described exhaust port continuous the first oil circuit, extend to the position corresponding with the described inside of described electric oil pump chamber than described axial rib Lower Half more on the lower in the cylindraceous described outer circumferential face of described axial rib and described electric oil pump chamber always.
(12) it is desirable to, locate above more in the described axial rib of ratio at the position that disposes described the first oil circuit of the described inside of described electric oil pump chamber, dispose that described outer circumferential face than described electric oil pump chamber more caves in and with described recess sunk part in succession, dispose the described output shaft of described differential motion at described sunk part.
(13) it is desirable to, the described internal configurations in described electric oil pump chamber has: the second oil circuit, and it is towards the number of unmolulding directions of described the first model, and the front end of intermediate portion and described the first oil circuit intersects and stops up front end opening; The 3rd oil circuit, it is towards the number of unmolulding directions of described the second model, and intermediate portion intersects with the intermediate portion of described the second oil circuit, and front end is connected with described hydraulic control valve cell and stops up the cardinal extremity opening portion.
(14) it is desirable to, be formed with from described axial rib continuously along the circular-arc rib that circumferentially extends at the first half of the described outer circumferential face of described electric oil pump chamber.
(15) it is desirable to, outer side surface at the described case of transmission at the position corresponding with the described inside of described electric oil pump chamber, be formed with the first continuous from described axial rib additional ribs, the outer side surface in described differential motion container is formed with the second continuous from described circular-arc rib additional ribs.
(16) it is desirable to, be provided with hole section that described output shaft connects in described differential motion container, around the section of described hole protuberance boss part, around described boss part the radial rib of protuberance radially.
(17) it is desirable to, the outer end that be equipped with the axle abutment wall section of supporting described main shaft and described countershaft, the surrounding wall portion around the described axle abutment wall section in the gear container of described case of transmission, is combined with the speed changer cover in the edge, outer end of described surrounding wall portion is facial.
According to transmission case body and function casting die structure of the present invention or case of transmission, the electric oil pump chamber of outer side surface that can the integrally casting case of transmission.
In addition, the electric oil pump chamber is integrally formed in the outer side surface of case of transmission by casting, so do not need to separate the operation of making pump chamber and the operation that pump chamber is engaged with case of transmission with case of transmission, desired when in addition, also not needing pump chamber engaged with case of transmission, prevent the junction leakage of oil and absorb the countermeasure of machining tolerance etc.
The electric oil pump chamber is positioned at the recess of the outside of the outer side surface that is formed on the differential motion container, so can consist of compactly case of transmission.
Electric oil pump cylindraceous chamber make axis towards with the axial direction of intersecting of main shaft and countershaft, so can not make the motor that is connected on the axis with the electric oil pump chamber side-prominent and configure to the axial the other end of stepless speed variator, can consist of compactly speed changer.
Because the electric oil pump chamber is configured in position near the valve cell assembly department, so be favourable aspect the oil circuit of action of configuration oil compactly.
Above the electric oil pump chamber, the output shaft of differential motion is outstanding from the gear container, and the electric oil pump chamber is from the main position of its protection gear container, below and output shaft.
The axial rib of the outer circumferential face of electric oil pump outdoor improves the rigidity of the gear container of electric oil pump chamber and top thereof.In addition, in when casting, the first groove that forms this axial rib becomes stream and promotes to form flow of fluid in the casting space of tubular of electric oil pump chamber, suppresses the generation of pore.
Because electric oil pump chamber self also makes the rigidity of gear container improve, so basic wall thickness (wall thickness of the part of boss and axial rib is not set) that can attenuate gear container.
Description of drawings
The stereogram that the case of transmission that Fig. 1 is based on manufacturing describes the transmission case body and function casting die structure of an embodiment of the present invention;
Fig. 2 is the major component stereogram of the case of transmission of an embodiment of the present invention;
Fig. 3 is the front elevation of outer side surface of the case of transmission of an embodiment of the present invention;
Fig. 4 is the general positive map that schematically shows the outer side surface of the case of transmission of the configuration of the constituting component of equipment in the case of transmission of an embodiment of the present invention;
Fig. 5 is the summary section of the variable v-belt drive of expression an embodiment of the present invention;
Fig. 6 is the major component sectional drawing of the case of transmission of an embodiment of the present invention;
Fig. 7 is the major component stereogram that the biopsy cavity marker devices of the case of transmission of an embodiment of the present invention is represented;
Fig. 8 is electric oil pump chamber and the exhaust port that represents the case of transmission of an embodiment of the present invention, the schematic diagram that reaches the position relationship of oil circuit and mechanical pump, (a) is its stereogram, (b) is its worm's eye view (A of Fig. 8 (a) is to view);
Fig. 9 is the major component sectional drawing of the transmission case body and function mold of an embodiment of the present invention;
Figure 10 is the general positive map of outer side surface of the case of transmission of background technique.
Description of symbols
10: gearbox case
11: converter housing
12: case of transmission
13: side cover
20: transmission input shaft
21: torque-converters
25: differential gear (differential motion)
25a: transmission shaft (output shaft of differential motion)
26: mechanical oil pump is wing pump
28: the control valve unit
30: band type stepless speed changing mechanism
31: primary pulley
31d: primary pulley axle
32: secondary pulley
32d: secondary pulley axle
33: band
50: the electric oil pump chamber
50M: motor
51: the inner space of tubular
54: the motor assembly department
55: exhaust port
56: the first oil circuits
57: the second oil circuits
58: the three oil circuits
53a: sunk part
121: the first receipts dress chambers (gear container)
122: differential motion containment wall section (differential motion container)
126: surrounding wall portion
128: recess
129: hole section
129a: boss part
129b: radial rib
132a: valve cell assembly department
M1: the first model
M2: the second model
CS: the first groove
Embodiment
Below, use accompanying drawing that embodiments of the present invention are described.
Use Fig. 1～Fig. 9, each configuration of installing that summary consists of and gearbox case is interior of the automatic transmission of present embodiment at first is described, then the formation of gearbox case, the formation of electric oil pump chamber and the formation that gearbox case is used casting die structure are described, its effect and effect are described at last.
In addition, the variable v-belt drive of present embodiment be applicable to have the idling stop vehicle of the system that the idle running that makes motor when stopping stops or can utilizing when starting or during low speed driving motor replace being difficult to obtain the motor of output torque, when slowing down by promoted the motor vehicle driven by mixed power of the raising of burn-up rate by the regeneration brake recovered energy.
Namely, be applicable to following formation, namely, owing to the situation that stops idle running at idling stop vehicle or in the situation that only motor is travelled as power source in the motor vehicle driven by mixed power, engine stop, can not guarantee the needed oil pressure of speed changer with the engine-driven oil pump, therefore except the engine-driven oil pump, also equip electric oil pump, when engine stop, utilize electric oil pump to guarantee oil pressure.
［ summary of automatic transmission consists of ］
Fig. 5 is the summary section of the variable v-belt drive of expression present embodiment.But cross section shown in Figure 5 is not same cross section but a plurality of cross sections are launched and represents.
As shown in Figure 5, this variable v-belt drive possesses the gearbox case 10 of the gear of taking in stepless speed variator.This gearbox case 10 is by consisting of from converter housing 11, case of transmission of the present invention 12 and the side cover 13 that starts pusher side to configure successively.
In such gearbox case 10, be provided with the torque-converters 21 that will amplify from the torque of motor, have the forward-reverse switching mechanism 22 of start clutch, during input output, carry out infinite variable speed band type stepless speed changing mechanism 30, driver pinion 24 and differential gear (differential motion) 25.In addition, as the mechanism to each unit feeding pressure oil or lubricant oil, possessing mechanical oil pump is wing pump 26, oil purifier 27, control valve unit 28 and oil cooler (not shown).
Torque-converters 21 by the pump impeller that is connected with engine output shaft 1, the turbine that is connected with transmission input shaft 20, with the stator of the mobile rectification of the action oil of inside, be used for that the lock-up clutch of direct transferring power consists of when running at high speed.
Forward-reverse switching mechanism 22 by with start pusher side to be connected and have forward clutch sun gear, consist of with the planetary gears that retreats planetary carrier that break is connected, is connected with primary pulley 31 and has the gear ring of forward clutch.In addition, planetary gears is not particularly limited, and also can form the planetary pinion of single pinion type or double-pinion type.
Band type stepless speed changing mechanism 30 comprises: primary pulley 31, and it is made of movable pulley 31a and the fixed pulley 31b with the rotating integrated rotation of inputting from forward-reverse switching mechanism 22; Secondary pulley 32, it is made of the movable pulley 32a and the fixed pulley 32b that make driving wheel with the reduction speed ratio one rotation of regulation; Be with 33, it is wound onto between the groove of each belt wheel.Be fixed with in the end of the secondary pulley axle 32d that is located at secondary pulley 32 output gear 34 and with driver pinion 24 engagement.
The back side at the movable pulley 32a of the movable pulley 31a of primary pulley 31 and secondary pulley 32 is respectively equipped with cylinder chamber 31c and cylinder chamber 32c.In addition, in the present embodiment, according to for the axle direction that makes gearbox case 10 shortens the reason of wishing driver pinion 24 is configured in the as far as possible left among Fig. 5, make the section area of cylinder chamber 32c less than cylinder chamber 31c.Also consider to change secondary pulley 32 and driver pinion 24 shaft core position and the axle direction of gearbox case 10 is shortened, but like this, velocity ratio can change, and is not preferred.The area reducing in the 32c of cylinder chamber in addition, in the present embodiment, used the high wing pump 26 of oil pressure supply capacity as oil pump, even so also can fully be guaranteed the pushing force to movable pulley 32a.
Driver pinion 24 is supported by bearing 35 via pinion shaft 24a and is rotatable.Be engaged with main reducing gear 36 at this driver pinion 24.Be fixed with two small gears of differential gear 25 at this main reducing gear 36, these small gears from about engagement side gear respectively.Be connected with transmission shaft (output shaft of differential motion) 25a at each side gear, consist of in the mode of the driving wheel about driving.
The blade that wing pump 26 is installed on this epitrochanterian stator and will separates the grease chamber that is made of rotor and stator by rotor, prejudicially consists of.Blade is embedded in the groove of rotor, side within it, the centrifugal force when the action oil that is fed into the rotor center axle and is located at the oil circuit of each groove utilizes rotor and blade is pressed to stator.Consist of by this, compare with the formation of utilizing spring that blade is pressed to stator, number of components is few and can realize long lifetime.End in torque-converters 21 sides of rotor is fixed with driven sprocket 26a, via chain 38 with are connected the driving sprocket wheel 37 of one rotation with transmission input shaft and are connected.
Suction port side at wing pump 26 is provided with oil purifier 27, is provided with control valve unit 28 in the exhaust port side of wing pump 26.Although do not illustrate, disposing a plurality of solenoid electric valves and various sensor (oil temperature sensor, hydrostatic sensor etc.) on control valve unit 28 is electronic component.
In addition, in the inside of oil cooler shown in Figure 4 29, although do not illustrate, the cooling water chamber that is supplied to cooling water also alternately layeredly consists of with the oil chamber's adjacency that is supplied to lubricant oil.Be connected with to be supplied to transport by the supply water route of the cooling water after the radiator cooling with to motor at the cooling water chamber of this oil cooler 29 and send the water water route from the cooling water of oil cooler 29.In addition, be connected with in the oil chamber of oil cooler 29 from control valve unit 28 and food tray 40 for the oil circuit of oil supply and with cooled oil as the oil circuit of lubricant oil to each unit feeding.
［ configuration of each device in the gearbox case ］
Fig. 4 is the front elevation from its case of transmission 12 of observing of outside (side cover 13 sides).In Fig. 4, the primary pulley 31 of band type stepless speed changing mechanism 30 and secondary pulley 32, driver pinion 24, differential gear 25, wing pump 26 all use circle schematically to represent.In addition, in Fig. 4, the device that is contained in opposition side is received in the circle expression shown in the dotted line across case of transmission 12.The place ahead direction of the vehicle the when arrow that in addition, is expressed as the place ahead among Fig. 4 represents that gearbox case 10 is equipped on vehicle.Below, only be recited as the place ahead, opposition side is recited as the rear.In addition, take this fore-and-aft direction as benchmark, only vertically the top is recited as the top, and opposition side is recited as the below.
As shown in Figure 4, band type stepless speed changing mechanism 30 is received the first receipts dress chambers (gear container) 121 that are contained in case of transmission 12.The primary pulley 31 of band type stepless speed changing mechanism 30 is contained in first by receipts and receives the front side bottom that fills chamber 121, and secondary pulley 32 is received the rear side top that is contained in the first receipts dress chamber 121.In addition, the first bottom of receiving dress chamber 121 is provided with opening, lubricant oil 40 discharges from opening portion to food tray after will having carried out lubricating to each device.
Across the opposition side of case of transmission 12, be converter housing 11 sides, receive the dress chamber not shown second and receive driver pinion 24, differential gear 25 and wing pump 26 are housed.Be formed with from outer side covers and cover this at case of transmission 12 and second receive the 122(of differential motion containment wall section (differential motion container) of dress chamber with reference to Fig. 5).
Differential gear 25 is received the rear side bottom that is contained in the second receipts dress chamber.Driver pinion 24 meshes the idle pulley 39 on the output gear 34 that is fixed on the secondary pulley axle 32d and the axle that is fixed on driver pinion 24.In addition, driver pinion 24 is to mesh (with reference to Fig. 5) with the main reducing gear 36 that is fixed on the differential gear 25.
Wing pump 26 than primary pulley 31 and differential gear 25 more by the position configuration of food tray 40 sides on the axle center different from primary pulley 31.
In addition, differential gear 25 and primary pulley 31 and secondary pulley 32 adjacency, but the shaft core position of the transmission shaft that is connected with side gear of differential gear 25 (output shaft of differential motion) 25a is in and the shaft core position of primary pulley 31 and secondary pulley 32 position relationship near equilateral triangle, and the line that the shaft core position that the shaft core position of transmission shaft 25a is connected with primary pulley connects consists of leg-of-mutton base.
［ formation of case of transmission ］
As shown in Figure 5, on case of transmission 12, the support of the axle of each device of utilization supporting is formed with the wall with converter housing 11 sides and the isolation of side cover 13 sides.First of case of transmission 12 is received the axle abutment wall section 123 that dress chamber 121 is formed with supporting primary pulley axle 31d and secondary pulley axle 32d, and space and fluid torque converter shell 11 sides of taking in primary pulley 31 and secondary pulley 32 are kept apart.
Be formed with primary pulley axle breakthrough part 124 and secondary pulley axle breakthrough part 125 in this axle abutment wall section 123, each end of primary pulley axle 31d and secondary pulley axle 32d connects these breakthrough parts 124,125 and via bearing 41,43 supportings to converter housing 11 sides of axle abutment wall section 123.Therefore, breakthrough part 124,125 is sealed by each axle 31d, 32d and bearing 41,43.Converter housing 11 sides and side cover 13 sides of case of transmission 12 are cut off fully.Therefore, become the formation that dust of producing at forward-reverse switching mechanism 22 or driver pinion 24 etc. etc. can not invaded band type stepless speed changing mechanism 30.
In addition, sealed by engaging side cover 13 at case of transmission 12.Each the other end of primary pulley axle 31d and secondary pulley axle 32d is supported by side cover 13 via bearing 42,44.Therefore, become the formation that dust etc. also can not invaded from the outside of side cover 13 sides band type stepless speed changing mechanism 30.
Fig. 2 observes the stereogram of the major component of case of transmission 12 obliquely from its face side (side cover 13 sides), and Fig. 3 is the front elevation (figure that observes from side cover 13) of case of transmission.Such as Fig. 2, shown in Figure 3, on case of transmission 12, around axle abutment wall section 123, be formed with the surrounding wall portion 126 of the whole periphery of surrounding primary pulley 31 and secondary pulley 32.Be formed with for a plurality of bolt hole 127a with bolton side cover 13 at the end face 127 of this surrounding wall portion 126, the position that forms these bolts hole 127a increases the wall thickness of surrounding wall portion 126 partly.First of case of transmission 12 is received dress chamber 121 and is possessed axle abutment wall section and surrounding wall portion 126 and consist of.
The differential motion containment wall section 122 of case of transmission 12 is in the roughly the same position of axially (be engine output shaft 1, primary pulley axle 31d, secondary pulley axle 32d, transmission shaft 25a etc. axially) of speed changer and axle abutment wall section 123.That is, differential motion containment wall section 122 is offset and configures to one axial distolateral (converter housing 11 sides) with respect to the first receipts dress chamber 121 that possesses surrounding wall portion 126.
Therefore, be formed with in the outside of the outer side surface of differential motion containment wall section 122 than first and receive the recess 128 that more cave in dress chamber 121, be formed with electric oil pump chamber 50 as the characteristic formation of this case of transmission 12 at this recess 128.
In addition, be formed with the hole section 129 that transmission shaft 25a is connected in differential motion containment wall section 122, be formed with the boss part 129a that wall thickness increased in the mode of protuberance a little and from the periphery radiated entends of this boss part 129a and the radial rib 129b of protuberance at the outer side surface of hole section 129.
In addition, outer peripheral portion in differential motion containment wall section 122 is formed with the lip part 130 that engages with converter housing 11, lip part 130 be formed with for bolton in a plurality of bolts hole 131 of converter housing 11, the position that forms these bolts hole 131 increases the wall thickness of differential motion containment wall section 122 partly.
In addition, the face 132 below becoming when case of transmission 12 vehicle-mounted is provided with the valve cell assembly department 132a that control valve unit 28 is installed.In addition, control valve unit 28 more below be equipped with food tray 40.
Face 133 above becoming when case of transmission 12 vehicle-mounted is formed with outside of surrounding wall portion 126 etc.
［ formation of electric oil pump chamber ］
Be formed with for a plurality of mounting hole 54a that motor 50M is installed at the axial direction of motor assembly department 54 along pump chamber 50.
Be equipped with the rotary part of pump in the inner space cylindraceous 51 of pump chamber 50 (for example, if applicable trochoid gear pump as gear pump, then be external rotor and internal rotor), the suction port 59(of another distolateral inside of the axial direction by being located at pump chamber 50 is with reference to Fig. 8) and exhaust port 55(with reference to Fig. 4, Fig. 6, Fig. 8), utilize motor 50M rotary actuation rotary part and the oil that sucks from suction port 59 is pressurizeed, then it is discharged from exhaust port 55.
Such as Fig. 6, Fig. 7, shown in Figure 8, at the more inner formation of pump chamber 50 continuous the first oil circuit 56 from exhaust port 55, in addition, be formed with the second oil circuit 57 that intersects with this first oil circuit 56 and the 3rd oil circuit 58 that intersects with this second oil circuit 57.Along the discharge direction from the oil of exhaust port 55, the intermediate portion of the second oil circuit 57 intersects and is communicated with the front end of the first oil circuit 56, and the intermediate portion of the 3rd oil circuit 58 intersects and is communicated with the front end of the second oil circuit 57.
In addition, the second oil circuit 57 is axial towards speed changer, and the 3rd oil circuit 58 is towards the axial direction of pump chamber 50, and the front end opening of the second oil circuit 57 is stopped up and seals by embolism 57a, and the cardinal extremity opening portion of the 3rd oil circuit 58 is stopped up and seals by embolism 58a.Therefore, the first oil circuit 56, the second oil circuit 57, the 3rd oil circuit 58 form the stream of key-type, and the front end of the 3rd oil circuit 58 is connected with control valve unit 28.
Why being formed with like this stream of key-type, is for built-in fitting such as equipment safety check etc. in stream, and as shown in Figure 8, for fear of with the interference of the appurtenances of wing pump 26 (be for the solenoid that consist of variable capacity oil pump at this) 26b.
At this, in the 3rd oil circuit 58, before stopping up with stopper 58a, in its opening, not shown safety check is housed, so that oil only circulates to control valve unit 28 directions.
The outer circumferential face of pump chamber 50 forms concentric or roughly concentric cylindric with inner space 51, near distance differential motion containment wall section 122 bus farthest, is formed with axial rib 60(with reference to Fig. 2 along the axial direction of pump chamber 50).Become the outer circumferential face Lower Half 52 than axial rib 60 pump chamber 50 more on the lower when particularly vehicle-mounted, until that the forming part of the first oil circuit 56 of the inside of pump chamber 50 all forms identical part is cylindric, become the outer circumferential face first half 53 of the pump chamber 50 more closer to the top than axial rib 60 when vehicle-mounted, only form part near the peripheral part of pump chamber 50 cylindric.
Therefore, the ratio axial rib 60 at the position that disposes the first oil circuit 56 of the inside of electric oil pump chamber 50 more the position of top be formed with that outer circumferential face 53 than electric oil pump chamber 50 more caves in and with recess 128 sunk part 53a in succession.53a disposes transmission shaft 25a at this sunk part.
The outward opening section of the second oil circuit 57 (side cover 13 sides) is outstanding to be arranged, and the opening of the 3rd oil circuit 58 becomes the distolateral outstanding setting of axial direction of the pump chamber 50 at rear when vehicle-mounted.Project section at these, be equipped with strengthening rib (additional ribs) 61,62 towards outside (side cover 13 sides).Strengthening rib 62 is continuous with axial rib 60.
In addition, the outer circumferential face first half 53 at pump chamber 50, also be equipped with circular- arc rib 63,64 towards peripheral direction, circular-arc rib 63 extends to the outside of differential motion containment wall section 122 and continuous with it always, and towards outside (side cover 13 sides) the outstanding strengthening rib (additional ribs) 65 that is provided with.Also be equipped with strengthening rib (additional ribs) 66 in the outside of differential motion containment wall section 122.
［ the gearbox case formation of casting die structure ］
In order to form the case of transmission 12 of shape as described above by casting, as shown in Figure 1, gearbox case is separated with mold.In addition, the mold that separates formation is transfer mold (die casting type), in Fig. 1, each the model M 1～M6 itself that consists of mold is not shown, in the position corresponding with each casting area, utilize hollow arrow to represent number of unmolulding directions, be illustrated in thus the existence of the mold of the mould shapes that each casting area can cast.Wherein, for the first model M 1 and the second model M 2, in each casting area mark form.
That is, the outer side surface (faces of side cover 13 sides) in order to consist of case of transmission 12 possesses: the first model M 1, and it moves axially along speed changer, the part of the part of the outer side surface of formation case of transmission 12 and the outer circumferential face of electric oil pump chamber 50; The second model M 2, its axial direction along electric oil pump chamber 50 moves and forms the remainder of the outer side surface of the remainder of the inner peripheral surface of electric oil pump chamber 50 and outer circumferential face and case of transmission 12, the movement direction of the second model M 2, is that the axial direction of electric oil pump chamber 50 is set as the direction with the axial quadrature of speed changer.
Shown in thick line among Fig. 1, the boundary part of the first model M 1 and the second model M 2 spread all over the 3rd oil circuit 58 opening the section that projects strengthening rib (additional ribs) 62 end face, with it continuous axial rib 60 end face, with it continuous circular-arc rib 63 end face, with it continuous strengthening rib (additional ribs) 65 end face, with it continuous surrounding wall portion 126 end face 127 and set.
Namely, when the first model M 1 and the second model M 2 engage, be formed with at its boundary part: the three-flute and the 4th groove that forms strengthening rib (additional ribs) 65 that form first groove (with reference to Fig. 9, mark CS) of axial rib 60, the second groove that forms circular-arc rib 63, formation strengthening rib (additional ribs) 62.
In addition, for the inner side surface (faces of fluid torque converter shell 11 sides) that consists of case of transmission 12, prepare to have axial the 3rd model M 3 that moves with the first model M 1 opposite direction at speed changer; The face 132 of downside prepares to have four-model M4 when consisting of case of transmission 12 vehicle-mounted; The face 133 of upside prepares to have the 5th model M 5 when consisting of case of transmission 12 vehicle-mounted; In order to consist of the face with the second model M 2 opposition sides, prepare to have the 6th model M 6.
The 6th model M 6 and the second model M 2 similarly move along the axial direction of electric oil pump chamber 50, and the 4th type M4 and the 5th model M 5 are to moving with the movement direction quadrature of the first model M 1 and the 3rd type M3 and with the direction of the movement direction quadrature of the second model M 2 and the 6th model M 6.
[effect and effect]
The gearbox case of an embodiment of the present invention consists of as described above with casting die structure, so by using this transmission case body and function mold, cast such as casting materiales such as aluminum alloys by utilizing, electric oil pump chamber 50 and the outer side surface of case of transmission 12 can be cast integratedly.
Therefore, do not need electric oil pump chamber 50 and case of transmission 12 are separated the operation of making and the operation that pump chamber 50 is engaged with case of transmission 12, desired when in addition, also not needing pump chamber 50 engaged with case of transmission 12, prevent the junction leakage of oil and absorb the countermeasure of machining tolerance etc.Therefore, can reduce process time, cut down finished cost.
And, can keep the basic layout of existing speed changer, and can be in the configuration electric oil pump chamber, space 50 of differential gear 25 sides of the hydraulic control valve 28 of case of transmission 12 bottoms.
In addition, because electric oil pump chamber 50 is positioned at the recess 128 of the outside of the outer side surface that is formed on differential motion container 122, so it is outstanding in this part to suppress case of transmission 12, can consist of compactly case of transmission 12.
In addition, since electric oil pump cylindraceous chamber 50 make axis towards with the axial direction of intersecting of speed changer, in the present embodiment towards with decussate direction, therefore can not make the motor 50M on the axis that is connected to electric oil pump chamber 50 give prominence to and configure to the axial exterior side (another is distolateral) of speed changer, from this point of view, also can consist of compactly speed changer.
And then, because electric oil pump chamber 50 is configured in position near valve cell assembly department 132a, so the oil circuit of action of configuration oil compactly.
And above electric oil pump chamber 50, transmission shaft (output shaft of differential gear 25) 25a is 121 outstanding from the gear container, but because electric oil pump chamber 50 is positioned at its below, so the main position of protection gear container 121 and transmission shaft 25a.
And, because electric oil pump chamber 50 itself makes the rigidity of gear container 121 improve, so basic wall thickness (wall thickness of the part of boss and axial rib is not set) that can attenuate gear container 121, the axial rib 60 of the outer circumferential face 52 in 50 outsides, electric oil pump chamber further improves the rigidity of the gear container 121 of electric oil pump chamber 50 and top thereof.In addition, as shown in Figure 9, in when casting, casting space (the first groove) CS that forms the groove shape of this axial rib 60 becomes stream and promotes to form liquid fluidity in the casting space of tubular of electric oil pump chamber 50, suppresses the generation of pore.
Especially when casting, sometimes need the casting space through the tubular that forms electric oil pump chamber 50, namely, need to utilize and cast towards the flow of fluid of stream 55～58 sides of inside from the opening side of electric oil pump chamber 50, in this case, only at the casting space of the tubular that forms electric oil pump chamber 50, therefore stream stenosis and liquid fluidity variation easily produce pore around the stream 55～58 of 50 inside, electric oil pump chamber.If when producing pore at this position, then when stopping up oil circuit 57,58 opening portion with embolism 57a, 58a and it is sealed, sealability easily reduces.
To this, the casting space CS that forms the groove shape of axial rib 60 becomes stream and promotes from the opening side of electric oil pump chamber 50 liquid fluidity towards stream 55～58 sides of inside, suppress the generation of pore, therefore, can avoid the reduction of the sealability that pore causes.
In addition, the roughness that the generation of pore not only can affect sealing but also stream wall increases, and the mobile performance of oil is also had adverse effect, but also can obtain to prevent the effect that the mobile performance of oil reduces by the generation that suppresses pore.
In the situation that present embodiment, utilize the second groove to be formed with from axial rib 60 continuously along the circular-arc rib 53 that circumferentially extends, utilize three-flute to be formed with the strengthening rib (additional ribs) 62 continuous with axial rib 60, utilize the 4th groove to be formed with the strengthening rib (additional ribs) 65 continuous with circular-arc rib 53, therefore, also can improve liquid fluidity by this face, and then can guarantee rigidity and the intensity of electric oil pump chamber.
Because the ratio axial rib 60 at the position of formation first oil circuit 56 of the inside of electric oil pump chamber 50 is the place, top more, formation more cave in than the outer circumferential face 53 of electric oil pump chamber 50 and with the continuous sunk part 53a of recess 128,53a disposes transmission shaft 25a at this sunk part, therefore, can not produce with transmission shaft 25a around the electric oil pump chamber 50 and interfere, can effectively utilize the space.
This sunk part 53a is the opposition side at the number of unmolulding directions of the second model M 2, more hollowly forms than the outer circumferential face 51 of electric oil pump chamber 50.In the second model M 2, (mark 70) protuberance of having to shown in double dot dash line among Fig. 6, although can not form sunk part 53a, because this part forms by the first model M 1, so the part 53a that can landform without prejudice be in depression.
In addition, be formed with the boss part 129a that swells in the mode of projection slightly and from the periphery radiated entends of this boss part 129a and the radial rib 129b of protuberance at the outer side surface of the hole section 129 of the differential motion container 122 of case of transmission 12, so basic wall thickness that from this point of view, also can attenuate gear container 121.
［ other ］
Above, embodiments of the present invention are illustrated, but the invention is not restricted to above-mentioned mode of execution, can suitably change above-mentioned mode of execution and implement in the scope that does not break away from aim of the present invention.
For example, in mode of execution, except axial rib 60, also be provided with various ribs 61～66 on the case of transmission 12, in mold M1, M2, be formed with corresponding slot part, but also axial rib 60 can only be set, can also suitably append other ribs 61～66, can also further suitably append rib.
In addition, the configuration of the device of each in the gearbox case also can be changed without departing from the spirit and scope of the present invention and be implemented.
And then, in mode of execution, as casting material, but also can be ferrous material with aluminum alloy.
In addition, in the above-described embodiment, be illustrated as an example of the mold of mould example, but also go for mold beyond the mould such as sand mold.
Utilizability on the industry
The present invention is applicable to idling stop vehicle and motor vehicle driven by mixed power also need to equip electric oil pump like that except the engine-driven oil pump vehicle.
Claims (17)
1. case of transmission casting die structure, it is cast case of transmission, and described case of transmission possesses: the gear container, it takes in the gear of the stepless speed variator that is made of primary pulley, secondary pulley and band; The differential motion container, its from the main shaft of outer side covers and described gear and countershaft in abutting connection with and have with the parallel to an axis of described main shaft and countershaft about the differential motion of output shaft, configure to a described axial distolateral skew with respect to described gear container; The valve cell assembly department, it is configured in the outer casing underpart that becomes the below when vehicle-mounted, is used for the hydraulic control valve cell is installed, it is characterized in that,
The recess of described case of transmission in the outside of the outer side surface that is formed at described differential motion container by described skew is provided with the electric oil pump chamber of tubular, this electric oil pump chamber is configured in the position near described valve cell assembly department of described output shaft below, make axis towards with described axial direction of intersecting
Described case of transmission casting die structure has: the first model, and it is along the part of the outer circumferential face of the part of the described outer side surface that moves axially and form described case of transmission and described electric oil pump chamber;
The second model, its axial direction along described electric oil pump chamber move and form the remainder of the described outer side surface of the remainder of described outer circumferential face of the inner peripheral surface of described electric oil pump chamber and described electric oil pump chamber and described case of transmission,
Be formed with for forming along the first groove of the axial rib of described axial direction extension at described outer circumferential face at described first model of the described outer circumferential face that forms described electric oil pump chamber and the joining portion of described the second model.
2. transmission case body and function casting die structure as claimed in claim 1 is characterized in that,
One distolateral at the described axis of described electric oil pump chamber disposed the motor assembly department that motor is installed at the number of unmolulding directions of described the second model,
Another distolateral internal configurations of the described axis of described electric oil pump chamber exhaust port is arranged and from described exhaust port continuous the first oil circuit,
Extend to the position corresponding with the described inside of described electric oil pump chamber than described axial rib Lower Half more on the lower in the cylindraceous described outer circumferential face of described axial rib and described electric oil pump chamber always,
Be provided with the position of the Lower Half of the Lower Half that forms described motor assembly department, described oil circuit, described axial rib and described outer circumferential face at described the second model.
3. transmission case body and function casting die structure as claimed in claim 2 is characterized in that,
Locate above more in the described axial rib of ratio at the position that disposes described the first oil circuit of the described inside of described electric oil pump chamber, dispose that described outer circumferential face than described electric oil pump chamber more caves in and with described recess sunk part in succession, dispose the described output shaft of described differential motion at described sunk part
In described the first model, be provided with the position of the first half that forms the first half comprise the described recess of described sunk part, described axial rib and described outer circumferential face.
4. transmission case body and function casting die structure as claimed in claim 2 or claim 3 is characterized in that,
Described internal configurations in described electric oil pump chamber has: the second oil circuit, and it is towards the number of unmolulding directions of described the first model, and the front end of intermediate portion and described the first oil circuit intersects and stops up front end opening; The 3rd oil circuit, it is towards the number of unmolulding directions of described the second model, and intermediate portion intersects with the intermediate portion of described the second oil circuit, and front end is connected with described hydraulic control valve cell and stops up the cardinal extremity opening portion,
In described the first model, be provided with the position that forms described the second oil circuit,
In described the second model, be provided with the position that forms described the 3rd oil circuit.
5. transmission case body and function casting die structure as claimed in claim 2 or claim 3 is characterized in that,
At described first model of the described outer circumferential face that forms described electric oil pump chamber and the joining portion of described the second model, be formed with from described axial rib at the first half of described outer circumferential face and form along the second groove of the circular-arc rib that circumferentially extends continuously.
6. transmission case body and function casting die structure as claimed in claim 5 is characterized in that,
Be formed with three-flute at described first model of the outer side surface of the described case of transmission that forms the position corresponding with the described inside of described electric oil pump chamber and the joining portion of described the second model, described three-flute forms the first continuous from described axial rib additional ribs
Be formed with the 4th groove at described first model of the outer side surface that forms described differential motion container and the joining portion of described the second model, described the 4th groove forms the second continuous from described circular-arc rib additional ribs.
7. such as each described transmission case body and function casting die structure in the claim 1～3, it is characterized in that,
Be provided with hole section that described output shaft connects in described differential motion container, around the section of described hole protuberance boss part, around described boss part the radial rib of protuberance radially,
In described the first model, be provided with the position of the described hole of formation section, described boss part and described radial rib.
8. such as each described transmission case body and function casting die structure in the claim 1～3, it is characterized in that,
The outer end that be equipped with the axle abutment wall section of the described main shaft of supporting and described countershaft, the surrounding wall portion around the described axle abutment wall section in the gear container of described case of transmission, is combined with the speed changer cover in the edge, outer end of described surrounding wall portion is facial,
In described the first model, be provided with the position of outer side surface, described surrounding wall portion and the described outer end face of the described axle abutment wall of formation section.
9. a case of transmission is characterized in that, each described transmission case body and function casting die structure forms by casting in the right to use requirement 1～3.
10. case of transmission, it forms by casting, possesses: the gear container of taking in the gear of the stepless speed variator that is made of primary pulley, secondary pulley and band; From the main shaft of outer side covers and described gear and countershaft in abutting connection with and have with the parallel to an axis of described main shaft and countershaft about the differential motion of output shaft, the differential motion container that configures to a described axial distolateral skew with respect to described gear container; Be configured in the outer casing underpart that becomes the below when vehicle-mounted, be used for installing the valve cell assembly department of hydraulic control valve cell, it is characterized in that,
The recess of described case of transmission in the outside of the outer side surface that is formed at described differential motion container by described skew possesses the electric oil pump chamber of tubular, the electric oil pump chamber of described tubular is configured in the position near described valve cell assembly department of described output shaft below, make axis towards with described axial direction of intersecting
Described outer circumferential face in described electric oil pump chamber is formed with the axial rib of extending along described axial direction.
11. case of transmission as claimed in claim 10 is characterized in that,
One distolateral at the described axis of described electric oil pump chamber disposed the motor assembly department that motor is installed along the number of unmolulding directions of described the second model,
Another distolateral internal configurations of the described axis of described electric oil pump chamber exhaust port is arranged and from described exhaust port continuous the first oil circuit,
Extend to the position corresponding with the described inside of described electric oil pump chamber than described axial rib Lower Half more on the lower in the cylindraceous described outer circumferential face of described axial rib and described electric oil pump chamber always.
12. case of transmission as claimed in claim 11 is characterized in that,
Locate above more in the described axial rib of ratio at the position that disposes described the first oil circuit of the described inside of described electric oil pump chamber, dispose that described outer circumferential face than described electric oil pump chamber more caves in and with described recess sunk part in succession, dispose the described output shaft of described differential motion at described sunk part.
13. such as claim 11 or 12 described case of transmissions, it is characterized in that,
Described internal configurations in described electric oil pump chamber has: the second oil circuit, and it is towards the number of unmolulding directions of described the first model, and the front end of intermediate portion and described the first oil circuit intersects and stops up front end opening; The 3rd oil circuit, it is towards the number of unmolulding directions of described the second model, and intermediate portion intersects with the intermediate portion of described the second oil circuit, and front end is connected with described hydraulic control valve cell and stops up the cardinal extremity opening portion.
14. such as claim 11 or 12 described case of transmissions, it is characterized in that,
The first half at the described outer circumferential face of described electric oil pump chamber is formed with from described axial rib continuously along the circular-arc rib that circumferentially extends.
15. case of transmission as claimed in claim 14 is characterized in that,
Outer side surface at the described case of transmission at the position corresponding with the described inside of described electric oil pump chamber is formed with the first continuous from described axial rib additional ribs,
Outer side surface in described differential motion container is formed with the second continuous from described circular-arc rib additional ribs.
16. such as each described case of transmission in the claim 10～12, it is characterized in that,
Be provided with hole section that described output shaft connects in described differential motion container, around the section of described hole protuberance boss part, around described boss part the radial rib of protuberance radially.
17. such as each described case of transmission in the claim 10～12, it is characterized in that,
The outer end that be equipped with the axle abutment wall section of the described main shaft of supporting and described countershaft, the surrounding wall portion around the described axle abutment wall section in the gear container of described case of transmission, is combined with the speed changer cover in the edge, outer end of described surrounding wall portion is facial.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-073733 | 2012-03-28 | ||
| JP2012073733A JP5712156B2 (en) | 2012-03-28 | 2012-03-28 | Mold structure for transmission case and transmission case |
| JPJP2012-073733 | 2012-03-28 |
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| CN103363074A true CN103363074A (en) | 2013-10-23 |
| CN103363074B CN103363074B (en) | 2016-05-04 |
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| CN201310098458.0A Active CN103363074B (en) | 2012-03-28 | 2013-03-26 | Casting die structure and case of transmission for case of transmission |
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| JP (1) | JP5712156B2 (en) |
| KR (1) | KR101470726B1 (en) |
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| JP7117831B2 (en) | 2017-07-14 | 2022-08-15 | ジヤトコ株式会社 | automatic transmission |
| JP6655641B2 (en) | 2018-03-13 | 2020-02-26 | 本田技研工業株式会社 | Throttle opening detection device for saddle type vehicle |
| JP7188058B2 (en) * | 2018-12-21 | 2022-12-13 | スズキ株式会社 | Drive system for hybrid vehicle |
| CN114508581B (en) * | 2022-02-22 | 2024-01-09 | 一汽解放汽车有限公司 | Transmission shell and transmission |
| KR20230137635A (en) | 2022-03-22 | 2023-10-05 | 동우 화인켐 주식회사 | Composite sensor for temperature and pressure measurement |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3550474A (en) * | 1967-12-05 | 1970-12-29 | Renault | Transmission and final drive units |
| JP2001260671A (en) * | 2000-03-22 | 2001-09-26 | Jatco Transtechnology Ltd | Method of manufacturing transmission unit housing and transmission unit housing |
| US6656069B2 (en) * | 2000-03-22 | 2003-12-02 | Jatco Ltd | Transmission unit |
| US8069951B2 (en) * | 2004-10-01 | 2011-12-06 | Jatco Ltd | Installation structure of oil cooler of vehicular transmission |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11287313A (en) * | 1998-03-31 | 1999-10-19 | Suzuki Motor Corp | Oil cooler for automatic transmission |
| KR100344896B1 (en) * | 1999-03-25 | 2002-07-19 | 가부시끼 가이샤 구보다 | Paddy field working apparatus |
-
2012
- 2012-03-28 JP JP2012073733A patent/JP5712156B2/en active Active
-
2013
- 2013-03-15 KR KR1020130027803A patent/KR101470726B1/en active IP Right Grant
- 2013-03-26 CN CN201310098458.0A patent/CN103363074B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3550474A (en) * | 1967-12-05 | 1970-12-29 | Renault | Transmission and final drive units |
| JP2001260671A (en) * | 2000-03-22 | 2001-09-26 | Jatco Transtechnology Ltd | Method of manufacturing transmission unit housing and transmission unit housing |
| US6656069B2 (en) * | 2000-03-22 | 2003-12-02 | Jatco Ltd | Transmission unit |
| US8069951B2 (en) * | 2004-10-01 | 2011-12-06 | Jatco Ltd | Installation structure of oil cooler of vehicular transmission |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979321A (en) * | 2015-10-20 | 2017-07-25 | 加特可株式会社 | Automatic transmission |
| CN106979321B (en) * | 2015-10-20 | 2019-11-01 | 加特可株式会社 | Automatic transmission |
| CN107178604A (en) * | 2016-03-11 | 2017-09-19 | 丰田自动车株式会社 | The lubrication system of power transmission |
| CN108253133A (en) * | 2016-12-28 | 2018-07-06 | 铃木株式会社 | Automatic Transmission |
| CN108253133B (en) * | 2016-12-28 | 2019-10-15 | 铃木株式会社 | Automatic transmission |
| CN107606086A (en) * | 2017-10-30 | 2018-01-19 | 奇瑞汽车股份有限公司 | CVT gearboxes |
| CN114135653A (en) * | 2018-02-26 | 2022-03-04 | 加特可株式会社 | Power transmission device |
| CN112368168A (en) * | 2018-06-22 | 2021-02-12 | 罗伯特·博世有限公司 | Variable transmission for a hybrid powertrain including a transmission unit and a differential gearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5712156B2 (en) | 2015-05-07 |
| CN103363074B (en) | 2016-05-04 |
| KR101470726B1 (en) | 2014-12-08 |
| JP2013204675A (en) | 2013-10-07 |
| KR20130111302A (en) | 2013-10-10 |
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