CN110529568B - Planetary gear type slope sliding prevention mechanism with relieving function - Google Patents
Planetary gear type slope sliding prevention mechanism with relieving function Download PDFInfo
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- CN110529568B CN110529568B CN201910792233.2A CN201910792233A CN110529568B CN 110529568 B CN110529568 B CN 110529568B CN 201910792233 A CN201910792233 A CN 201910792233A CN 110529568 B CN110529568 B CN 110529568B
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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
- B60K6/36—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 transmission gearings
- B60K6/365—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 transmission gearings with the gears having orbital motion
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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
- B60K6/38—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 driveline clutches
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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
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/70—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/74—Complexes, not using actuable speedchanging or regulating members, e.g. with gear ratio determined by free play of frictional or other forces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/21—Providing engine brake control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/48—Signals to a parking brake or parking lock; Control of parking locks or brakes being part of the transmission
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H2003/445—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the input and the set of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H2003/447—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion without permanent connection between the set of orbital gears and the output
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/203—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes
- F16H2200/2035—Transmissions using gears with orbital motion characterised by the engaging friction means not of the freewheel type, e.g. friction clutches or brakes with two engaging means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
- F16H2200/2084—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches two freewheel mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention discloses a planetary gear type slope sliding prevention mechanism with a release function, which comprises a rack, a planetary speed change mechanism, a power input part, a power output part, a first clutch, a second clutch and a third clutch; the planetary speed change mechanism is characterized in that any sequential combination of a sun gear, a planet carrier and a gear ring in the planetary speed change mechanism respectively corresponds to a power input end, a power output end and an intermediate transmission part, the power input part is matched with the power input end through a first clutch to realize power transmission, the power input part is matched with the power output end through a second clutch to realize power transmission, and the intermediate transmission part is matched with the rack through a third clutch; according to the invention, the anti-slope-sliding mechanism is integrated in the planetary speed change mechanism, the anti-slope-sliding function is realized through the locking of the planetary speed change mechanism, a related braking system is not required to be added, and the structure of the anti-slope-sliding mechanism is simplified.
Description
Technical Field
The invention relates to the field of vehicle engineering, in particular to a planetary gear type slope sliding prevention mechanism with a relieving function.
Background
When the motor vehicle stops or starts on an uphill road section, a component force downward facing a parallel slope surface, namely, the resistance of the slope, is generated due to the self weight of the motor vehicle, and the resistance can enable the motor vehicle to slide backwards along the slope surface, so that the situation is extremely unsafe. For a manual gear motor vehicle, a driver needs to make coordination among a parking brake, a clutch and an accelerator pedal when going up a slope, but the series of operation processes are complicated and difficult to master, and cannot be realized for a driver, and the inherent problem becomes a significant defect of an MT vehicle. For a vehicle equipped with an Automatic Transmission (AT) and a Continuously Variable Transmission (CVT), it is also required to have a hill-slip prevention function;
at present, a braking system with an uphill auxiliary function is usually adopted in a vehicle to cooperate with operations such as braking and the like to prevent the vehicle from sliding down a slope; however, when the brake system with the uphill assist function is implemented, a related brake system needs to be added in a speed reducer or other components, so that the complexity of the brake system is increased, and the cost of the whole vehicle is increased;
the existing vehicle also adopts a power system consisting of a motor, a motor controller and related sensors to prevent the vehicle from sliding down a slope; in the implementation mode, the working state of the vehicle can be judged only by the vehicle firstly sliding down the slope for a short time and a short distance, and then the vehicle is controlled to enter the anti-sliding mode; therefore, the implementation mode has certain judgment delay, unreliable performance and safety risk;
therefore, there is a need for a planetary gear type slope slipping prevention mechanism with a release function, which has a simple structure and reliable slope slipping prevention performance.
Disclosure of Invention
In view of the above, the present invention provides a planetary gear type slope slipping prevention mechanism with a release function, which has a simple structure and reliable slope slipping prevention performance.
The invention discloses a planetary gear type slope sliding prevention mechanism with a release function, which comprises a rack, a planetary speed change mechanism, a power input part, a power output part, a first clutch, a second clutch and a third clutch;
the combination of arbitrary order of sun gear, planet carrier, ring gear three among the planetary gear mechanism is corresponding to power input part, power take off end and intermediate transmission part respectively, power input spare through a clutch with power input end cooperation realizes power transmission, power input spare through No. two clutches with power take off spare cooperation realizes power transmission, power take off spare transmission cooperation is in power take off end, no. three clutches set up between intermediate transmission part and frame or set up and realize power transmission or interrupt between power take off spare and waiting to drive piece.
Furthermore, the first clutch and the second clutch are overrunning clutches, the power input part realizes one-way transmission from the power input part to the power input end through the first clutch, and the power output part realizes one-way transmission from the power output part to the power input part through the second clutch.
And the power input part is matched with an external power part through the fourth clutch to realize power transmission.
Further, the power input end, the power output end and the intermediate transmission component of the planetary speed change mechanism respectively correspond to the sun gear, the planet carrier and the gear ring.
Furthermore, the power input part and the power output part are of sleeve structures, the power input part is coaxially sleeved with the power output part, the first clutch is matched between the outer circle of the power input part and the inner circle of the sun gear, and the second clutch is matched between the outer circle of the power output part and the inner circle of the power input part.
Further, the power input part is of a stepped shaft sleeve structure, the first clutch is matched on the outer circle of the small-diameter section of the power input part, and the second clutch is matched on the inner circle of the large-diameter section of the power input part.
Furthermore, the outer circle of the large-diameter end of the power input part is provided with a flange which is formed by protruding outwards in the radial direction, and the flange is coaxially matched with the power output end of the fourth clutch in a transmission mode.
Furthermore, the third clutch and the fourth clutch are located on two axial sides of the planet gear, and the flange plate and the fourth clutch are located on the same side of the planet gear.
Furthermore, the gear ring is connected with a right end cover towards one end of the third clutch in the axial direction, and the right end cover is in coaxial transmission fit with a power input end or a power output end of the third clutch.
Furthermore, one end, far away from the third clutch, of the gear ring in the axial direction is connected with a left end cover.
The invention has the beneficial effects that:
the invention can realize four states of a driving state, a locking state, an unlocking state and a reverse dragging state of the vehicle, and is matched with the overrunning clutch, so that the speed difference formed by the inner ring and the outer ring of the overrunning clutch realizes the automatic combination or separation of the first clutch and the second clutch through different running states of the vehicle, thereby realizing the switching of each state, needing no control system to control the first clutch and the second clutch, and simplifying the control system of the vehicle;
the invention meets the normal running of the vehicle through the driving state, avoids neutral gear sliding and reduces the rotating speed of the engine through the anti-dragging state, and achieves the purposes of saving oil, reducing noise and improving comfort; through the locking state, the function of preventing the vehicle from sliding down the slope during parking on the uphill slope is met; the function of preventing the vehicle from sliding down the slope can be realized through the unlocking state;
the invention integrates the anti-slope-sliding mechanism into the speed reducer, realizes the anti-slope-sliding function through the self locking of the speed reducer, does not need to increase a related braking system, simplifies the structure of the anti-slope-sliding mechanism, does not need to be provided with a complex controller and related sensors, does not need to judge the working state of a vehicle in advance, does not store and judge delay, and has fast anti-slope-sliding and reliable performance.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the principle structure of the present invention;
Detailed Description
FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic diagram of the principle structure of the present invention;
as shown in the drawings, the planetary gear type slope slipping prevention mechanism with the release function in the embodiment includes a frame 1, a planetary speed change mechanism 2, a power input member 3, a power output member 4, a first clutch 5, a second clutch 6 and a third clutch 7; the arbitrary order combination of sun gear 2a, planet carrier 2b, ring gear 2c three among the planet speed change mechanism is corresponding to power input part, power take off end and intermediate drive part respectively, power input 3 through a clutch with power input end cooperation realizes power transmission, power input 3 through No. two clutches with power take off 4 cooperation realizes power transmission, power take off 4 transmission cooperation is in power take off end, no. three clutches set up and realize power transmission or interrupt between intermediate drive part and frame or between power take off 4 and the driving piece of waiting.
In the embodiment, the third clutch is arranged between the intermediate transmission component and the rack, different states can be formed by combining or separating the clutches, the planetary speed change mechanism at least has a driving state, a locking state, an unlocking state and a reverse dragging state, the first clutch 5 is combined, the second clutch is separated and the third clutch is combined in the driving state, and power is output to the power output component through the power input component, the first clutch, the power input component and the power output component to drive forward rotation; when the lock-up state is realized, the power output part 4 reversely rotates, the first clutch, the second clutch and the third clutch are combined, the power output part reversely rotates to output reverse dragging power to the power output end and simultaneously transmit the reverse dragging power to the power input end through the power output part, the second clutch, the power input part and the first clutch, the rotating speeds of the power input end and the power output end are not matched by controlling the speed ratio, and the planetary speed change mechanism is locked up; when the vehicle is in an unlocking state, the third clutch is separated, the power output part reversely rotates to output reverse dragging power to the intermediate transmission part through the power output end to realize idling, the third clutch can be arranged between the power output part 4 and a to-be-driven part, the to-be-driven part is a vehicle wheel transmission system, and when the vehicle is in a locking state, the third clutch is separated, an external power transmission path is interrupted, and the vehicle wheel is idled, so that the aim of releasing the locking is fulfilled; when the engine is in a reverse dragging state, the second clutch and the third clutch are combined, the first clutch is separated, and the power output part transmits forward rotation supporting power to the power input part through the second clutch to realize reverse dragging of the engine;
the driving state is suitable for the normal driving running state of the vehicle, and at the moment, the power of the engine is input to the power input part to realize the power driving of the vehicle; the locking state is used for preventing the vehicle from sliding down the slope on the slope, at the moment, the power of the reverse rotation of the wheels is input into the power output part 4 to drive the power output part 4 to rotate reversely, and at the moment, the planetary speed change mechanism 2 is locked to prevent the vehicle from sliding down the slope; the unlocking state can remove the function of preventing the slope from sliding; when the reverse dragging state is used in the downhill process of the vehicle, the wheels drag the engine reversely, the positive rotating force of the wheels is input to the power output part 4 to drive the power output part 4 to rotate positively, and the vehicle drags the engine reversely at the moment;
the planetary speed change mechanism can achieve a larger transmission ratio in a compact space, wherein different components can achieve different effects as an input end and an output end, for example, a sun gear serves as the input end, and a planet carrier serves as the output end to achieve the effects of reducing speed and increasing torque, a sun gear serves as the input end, and a gear ring serves as the output end to achieve the effects of reversing speed and increasing torque, a planet carrier serves as the input end, and a sun gear serves as the output end to achieve the effects of reversing speed and increasing torque, and similarly, the gear ring serves as the input end, the planet carrier serves as the output end, or the planet carrier serves as the input end, and the gear ring serves as the output end to achieve different effects, and is not described herein again, and the rack is a gear box or an engine crankcase and other components for relatively fixing the gear ring, and is not specifically described herein;
in this embodiment, the first clutch 5 and the second clutch 6 are overrunning clutches, the power input member 3 realizes one-way transmission from the power input member to the power input end through the first clutch 5, and the power output member 4 realizes one-way transmission from the power output member 4 to the power input member 3 through the second clutch 6; as shown in fig. 1, in a driving state, the power of the engine is input to the power input part 3 through the fourth clutch 8, the power input part serves as a driving part, the first clutch 5 is automatically combined, the inner ring and the outer ring of the second clutch 6 are overrunning, the third clutch is combined, the power of the engine is output through the power input part 3, the first clutch 5, the sun gear and the planet carrier and the power output part 4, and the power of the engine cannot be transmitted through the second clutch 6; when the vehicle is in a locked state, the vehicle has a slope slipping trend, the wheel transmits reverse power to the power output part 4, the first clutch 5 and the second clutch 6 are automatically combined, the third clutch is combined, the reverse power is transmitted to the planet carrier and is transmitted to the sun gear through the power output part 4, the second clutch 6, the power input part 3 and the first clutch 5 sequentially, the reverse power is transmitted to the power input end and the power output end of the planetary speed change mechanism through two transmission paths, the speeds of the sun gear and the planet carrier are not matched by controlling the speed ratio, the planetary speed change mechanism 2 is locked, and the vehicle slipping is prevented; when the planetary transmission mechanism 2 is unlocked, the third clutch 7 is disengaged in the locked state, and power is transmitted to the gear ring at the moment, so that the gear ring idles, and the locked state of the planetary transmission mechanism 2 is released; when the vehicle is in a reverse dragging state, the vehicle descends, the wheels transmit the power of positive rotation to the planet carrier, the second clutch 6 is automatically combined, the inner ring and the outer ring of the first clutch 5 are overrunning, and the power is input to the engine through the power output part 4, the second clutch 6, the power input part 3 and the fourth clutch 8, so that the reverse dragging of the engine is realized; through the overrunning clutch, the speed difference formed by the inner ring and the outer ring of the overrunning clutch of the vehicle in different running states realizes the automatic switching of the first clutch and the second clutch in combination and separation states, realizes the automatic switching of each state of the vehicle, does not need to be provided with a complex controller and related sensors, does not need to judge the working state of the vehicle in advance, does not have judgment delay, and has reliable slope slipping prevention performance;
in the embodiment, the power input device further comprises a fourth clutch 8, and the power input device 3 is matched with an external power device through the fourth clutch 8 to realize power transmission; the external power part is usually an engine, and the fourth clutch 8 is used as a starting clutch, so that the interruption and combination of a power transmission path between the engine and the anti-slope-slipping mechanism can be realized;
in this embodiment, the power input end, the power output end and the intermediate transmission component of the planetary speed change mechanism correspond to the sun gear, the planet carrier and the gear ring respectively; the gear ring is relatively fixed on the frame through a third clutch, and the planet carrier is in transmission fit with the power output part 4 through a spline; the sun wheel is used as an input end, and the planet carrier is used as an output end, so that the effects of speed reduction and torque increase are realized.
In this embodiment, the power input member 3 and the power output member 4 are of a sleeve structure, the power input member 3 is coaxially sleeved with the power output member, the first clutch 5 is fitted between the outer circle of the power input member 3 and the inner circle of the sun gear 2a, and the second clutch 6 is fitted between the outer circle of the power output member and the inner circle of the power input member; the power output part 4 can be in transmission fit with the output shaft through the spline, the axial occupied space can be reduced by the structures of the inner sleeve and the outer sleeve of the power input part 3 and the power output part 4, the space arrangement is convenient, the structure is easy to arrange the first clutch and the second clutch, the space can be reasonably utilized, and the structural compactness of the slope sliding prevention mechanism is improved.
In this embodiment, the power input member is a stepped shaft sleeve structure, the first clutch 5 is fitted on the outer circle of the small diameter section of the power input member, and the second clutch 6 is fitted on the inner circle of the large diameter section of the power input member; as shown in fig. 1, the left end of the power input part is a large-diameter end, and the right end of the power input part is a small-diameter end, so that the first clutch 5 and the second clutch 6 can be axially distributed, the radial size of the anti-slope-slipping structure can be reduced, and the structure is convenient for arranging the second clutch 6 inside the anti-slope-slipping structure; the outer circle of the power output part 4 is provided with a coaxial mounting ring which is formed by protruding radially outwards, the inner ring of the second clutch 6 is matched with the mounting ring in a transmission manner, the outer diameter of the mounting ring is the same as that of the small-diameter end of the power input part, and the inner diameter of the sun gear is the same as that of the large-diameter end of the power input part;
in the embodiment, the outer circle of the large-diameter end of the power input part is provided with a flange 3a which is formed by protruding outwards in the radial direction, and the flange is coaxially matched with the power output end of the fourth clutch 8 in a transmission way; referring to fig. 1, the flange is fixed with the power output end of the fourth clutch 8 through a bolt to form transmission fit between the flange and the clutch;
in this embodiment, the third clutch 7 and the fourth clutch 8 are located on two axial sides of the sun gear, and the flange 3a and the fourth clutch 8 are located on the same side of the planet gear; the third clutch 7 and the fourth clutch 8 are respectively arranged on two axial sides of the planetary speed change mechanism, so that the space distribution of the two clutches is facilitated, and the space arrangement difficulty of each part of the anti-slope-slipping mechanism is reduced.
In the embodiment, one end of the gear ring, which faces the third clutch 7 in the axial direction, is connected with a right end cover 9a, and the right end cover 9a is in coaxial transmission fit with a power input end or a power output end of the third clutch 7; the right end cover is connected with one end of the third clutch 7 through a bolt to form transmission fit;
in the embodiment, one end of the gear ring, which is axially far away from the third clutch 7, is connected with a left end cover 9b; the left end cover is matched with the right end cover to form an installation cavity, and structures such as a planet wheel, a planet wheel shaft and a planet carrier are encapsulated in the installation cavity, so that the structural compactness of the planetary speed change mechanism is improved, the planetary speed change mechanism can be conveniently assembled with other components as a whole, and the assembly difficulty is simplified;
finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. The utility model provides a planetary gear formula of function is relieved in area prevents swift current slope mechanism which characterized in that: the planetary transmission mechanism comprises a rack, a planetary speed change mechanism, a power input part, a power output part, a first clutch, a second clutch and a third clutch;
the planetary speed change mechanism is characterized in that any sequential combination of a sun gear, a planet carrier and a gear ring in the planetary speed change mechanism respectively corresponds to a power input end, a power output end and an intermediate transmission part, the power input part is matched with the power input end through a first clutch to realize power transmission, the power input part is matched with the power output part through a second clutch to realize power transmission, the power output part is matched with the power output end in a transmission way, and the third clutch is arranged between the intermediate transmission part and a frame or between the power output part and a to-be-driven part to realize power transmission or interruption;
the first clutch and the second clutch are overrunning clutches, the power input part realizes one-way transmission from the power input part to the power input end through the first clutch, and the power output part realizes one-way transmission from the power output part to the power input part through the second clutch.
2. The planetary gear type hill slide preventing mechanism with release function according to claim 1, characterized in that: the power input part is matched with an external power part through the fourth clutch to realize power transmission.
3. The planetary gear type hill-drop preventing mechanism with release function according to claim 2, characterized in that: the power input end, the power output end and the intermediate transmission component of the planetary speed change mechanism respectively correspond to the sun gear, the planet carrier and the gear ring.
4. The planetary gear type anti-slide mechanism with release function according to claim 3, characterized in that: the power input part and the power output part are of sleeve structures, the power input part is coaxially sleeved with the power output part, the first clutch is matched between the outer circle of the power input part and the inner circle of the sun wheel, and the second clutch is matched between the outer circle of the power output part and the inner circle of the power input part.
5. The planetary gear type anti-slide mechanism with release function according to claim 4, characterized in that: the power input part is of a stepped shaft sleeve structure, the first clutch is matched on the outer circle of the small-diameter section of the power input part, and the second clutch is matched on the inner circle of the large-diameter section of the power input part.
6. The planetary gear type anti-creep mechanism with release function according to claim 5, characterized in that: the outer circle of the large-diameter end of the power input part is provided with a flange which is formed by protruding outwards in the radial direction, and the flange is coaxially matched with the power output end of the fourth clutch in a transmission mode.
7. The planetary gear type hill slide preventing mechanism with release function according to claim 6, characterized in that: the third clutch and the fourth clutch are located on two axial sides of the planet sun gear, and the flange plate and the fourth clutch are located on the same side of the planet gear.
8. The planetary gear type hill-drop preventing mechanism with release function according to claim 7, characterized in that: and one end of the gear ring, which faces the third clutch, in the axial direction is connected with a right end cover, and the right end cover is in coaxial transmission fit with a power input end or a power output end of the third clutch.
9. The planetary gear type hill-drop preventing mechanism with release function according to claim 8, characterized in that: and one end of the gear ring, which is axially far away from the third clutch, is connected with a left end cover.
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| CN201910792233.2A CN110529568B (en) | 2019-08-26 | 2019-08-26 | Planetary gear type slope sliding prevention mechanism with relieving function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1888483A (en) * | 2006-07-13 | 2007-01-03 | 同济大学 | Power driving device for mixed power vehicle |
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| JP2007309486A (en) * | 2006-05-22 | 2007-11-29 | Toyota Motor Corp | Starting control device of vehicle |
| CN107697061B (en) * | 2017-09-25 | 2020-09-04 | 奇瑞汽车股份有限公司 | Hybrid power driving system and hybrid power automobile |
| CN108167405A (en) * | 2017-12-31 | 2018-06-15 | 柳州惠林科技有限责任公司 | A kind of two-shift automatic variable speed device for braking gear ring |
| CN109677378A (en) * | 2019-01-04 | 2019-04-26 | 南京航空航天大学 | A kind of anti-auxiliary device and method slipped by slope with emergency braking of heavy-duty car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1888483A (en) * | 2006-07-13 | 2007-01-03 | 同济大学 | Power driving device for mixed power vehicle |
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