CN104879483A - Continuously variable transmission with high function security and power machinery with continuously variable transmission - Google Patents
Continuously variable transmission with high function security and power machinery with continuously variable transmission Download PDFInfo
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- CN104879483A CN104879483A CN201510197563.9A CN201510197563A CN104879483A CN 104879483 A CN104879483 A CN 104879483A CN 201510197563 A CN201510197563 A CN 201510197563A CN 104879483 A CN104879483 A CN 104879483A
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- dish
- cone dish
- stepless speed
- speed variator
- functional safety
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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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
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
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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
- F16H61/02—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 characterised by the signals used
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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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
Abstract
A continuously variable transmission with high function security is provided with a revolving speed signal generation device, a resolving speed signal generation sensor, a conical plate position signal generation device and a conical plate position signal generation sensor. A signal device is arranged between a lubricating oil pump and an inlet of the lubricating oil pump and is used for detecting whether a filter screen is blocked or not. Moreover, a component is used for judging whether the oil pump fails or not according to a temperature difference value of a temperature sensor. In a whole system, common cause failure on selection and arrangement of the sensors can be avoided to the greatest extent, and the safety and the reliability of the continuously variable transmission are improved.
Description
Technical field:
The present invention relates to speed changer field, be specially a kind of stepless speed variator of high functional safety, be mainly used in the fields such as automobile, engineering machinery, dynamic power machine.
Background technique:
Cone disk type stepless speed variator is widely used in the traffic tool, engineering machinery, agricultural machinery, power generating equipment and other industrial fields, by the flexible transmission component be held between cone dish, as rubber tape, steel band, chain etc., and transferring power and motion to frictionally.Speed control system and lubrication are the key functions of this type of stepless speed variator.
The application of stepless speed variator, especially automotive field, have higher requirement to security of system.Below from altogether because how property inefficacy, functional safety, the several aspect of ISO 26262 standard improve the reliability of stepless speed variator.
The inefficacy (these elements comprise the part such as software, hardware) of two or more elements in the same system caused by same particular event or same basic reason is referred to altogether because property lost efficacy.Common cause failure should be avoided as far as possible in system design process, thus improve the reliability of whole system.
Functional safety refers to the unacceptable risk avoiding being caused by system functionality fault.Behavior after functional safety attention location system fault, instead of the original function of system or performance.
ISO 26262 derives from from electronics, electrical equipment and programming device functional safety primary standard IEC61508, mainly be positioned at specific appliance device, electronic equipment, programmable electronic device etc. in automobile industry and be specifically designed to the parts of automotive field, be intended to the international standard improving automotive electronics, functions of electric appliances.Along with the application of the raising of system complexity, software and electromechanical equipment also increases day by day from the risk of the inefficacy of thrashing and random hardware, ISO 26262 standard is requirement and the flow process of avoiding these risks to provide feasibility.
Summary of the invention:
An object of the present invention is to provide a kind of stepless speed variator; Two of object of the present invention is to provide a kind of automobile, a kind of dynamic power machine or engineering machinery and a kind of power generating equipment, and these equipment all use stepless speed variator of the present invention.
Stepless speed variator of the present invention improves the functional safety grade under non-systemic fault, reaches the standard of more than the ASIL C of ISO26262 in the electric system of derailleur body part (not comprising controller), avoids altogether because property lost efficacy.
The basic structure of stepless speed variator is 2 cone dish axles, it is arranged respectively 1 mantle dish and 1 determine cone dish.Mantle dish is connected with speed regulating mechanism, as oil hydraulic cylinder, or speed adjustment screw.1 flexible transmission component is pressed in 2 between cone dish, and the frictional force between it is the basis of transmission of power.
The important object that stepless speed variator controls is gear ratio, in order to improve systemic-function Security, first needs, with the current gear ratio of the above different approach measuring system of at least 2 cover, to feed back to control system.When a kind of approach lost efficacy, reliable and stable signal can be obtained with another kind of approach.But in order to judge which Signal Fail, also need other signal to verify.
The system internal speed-changing that the present invention adopts has two-way than measurement signal, and one is cone dish position, i.e. the position of flexible element on cone dish; Two is the ratios exporting input speed.As system check signal, the motor of car load or the drive motor tach signal of electric vehicle can be adopted, and the wheel speed signal of ABS or ESP.
The concrete metering system of rotating speed is, on the input cone dish axle of stepless speed variator, or on the transmission shaft be connected with gear or silent chain mode with input cone dish axle, is provided with tach signal generating means, housing relevant position is provided with rotary speed signal sensor simultaneously; Simultaneously on the output cone dish axle of stepless speed variator, or on the transmission shaft be connected with gear or silent chain mode with input cone dish axle, be provided with tach signal generating means, housing relevant position be provided with rotary speed signal sensor simultaneously; After measuring input output tach signal, current gear ratio can be calculated.
The metering system of cone dish position is, cone dish position signal generating means is arranged on mantle dish, or be connected with mantle dish axial restraint, comprise and being connected with mantle dish axial restraint with forms such as bearings, but can with the mantle dish structural circular groove coaxial with mantle dish in relative rotation, this cone dish position signal sensor is angle transducer, its angle measurement element connects a fork, and the other end of fork stretches in circular groove.
Maybe cone dish position signal generating means is arranged on mantle dish, or be connected with mantle dish axial restraint, comprise and being connected with mantle dish axial restraint with forms such as bearings, but can be structural in relative rotation with mantle dish, the planar annular of spin axis and mantle disc spins axis coaxle, this cone dish position signal sensor is linear displacement transducer, its straight-line displacement measuring cell and above-mentioned planar annular by push rod or pull rod shaft to being fixedly connected with.
By angle transducer and cone dish position generating means thereof, be arranged on input cone dish axle; Or by angle transducer and cone dish position generating means thereof, be arranged at and export on cone dish axle; Or linear displacement transducer and cone dish position generating means thereof, be arranged on input cone dish axle; Or linear displacement transducer and cone dish position generating means thereof, be arranged at and export on cone dish axle; Or angle transducer and cone dish position generating means thereof, be arranged on input and output cone dish axle simultaneously; Or linear displacement transducer and cone dish position generating means thereof, be arranged on input and output cone dish axle simultaneously; Or linear displacement transducer and angle transducer and cone dish position generating means thereof, be arranged at respectively on input and output cone dish axle.
Meanwhile, if with motor adjustment speed ratio, also revolution or position transducer can be arranged on speed-adjustable motor, to measure the number of turns of motor rotation, also indirectly can obtain the information of cone dish position.
Like this, if find three tunnel measurement results of gear ratio, rotating speed, cone dish position, speed-adjustable motor rotating cycle are variant, under the prerequisite that acquiescence only has a road to lose efficacy, what can judge inefficacy is which, and replaces with another 2 signal Zhong mono-tunnels, road, continues normally to work; If system have employed two-way and measures, as rotating speed and cone dish position, motor or the drive motor rate signal of car load can be contrasted, and the wheel speed signal of ABS or ESP, determine which lost efficacy, and replace with another 2 signal Zhong mono-tunnels, road, continue normally to work.
As another important process condition of stepless speed variator, lubrication and cooling also needs to possess high functional safety.
As the actuator of lubrication and cooling, the present invention is provided with 2 cover systems, and a set of is natural splash lubrication, and utilizes oil guide structure that lubricant oil is imported to the position such as bearing, gear, and especially stepless speed variator needs most the cone dish-flexible element position of cooling; The another set of forced lubricating system for oil pump driving, utilizes oil pump oil to be sent into the position needing lubrication.
The Security of pressure lubrication also needs to monitor, and is provided with pressure lubrication monitoring mechanism in the present invention.
Embodiment is as follows, between lubricating pump entrance and lubricating pump, arrange vacuum sensor, or vacuum signal-transmitting machine, or vacuum switch.Judge whether filter screen blocks.Be provided with 2 lubricating oil temperature sensors, 1 is arranged at outside the oil duct between the inlet port of lubricating pump and oil outlet simultaneously, and as stepless speed variator lower housing portion, another 1 is arranged between oil pump oil outlet and cone dish spindle oil entrance.Judge whether oil pump works by two temperature transducer temperature gaps.
With in oil-engine driven automobile, stepless speed variator also will comprise clutch and advance reverse gear switching function.
In order to realize above-mentioned functions, dry clutch is provided with between stepless speed variator and motor, clutch separation motor drives clutch shifter dry clutch is separated and combines by speed reducer, speed reducer is provided with clutch position sensor simultaneously, and motor is provided with motor position sensor.
The advance reverse gear that advance reverse gear switch motor drives shift fork to make synchronizer switch to realize stepless speed variator between advance and reverse gear pair by speed reducer switches, speed reducer is provided with synchronizer position transducer simultaneously, and motor is provided with motor position sensor.
Therefore the present invention realizes especially by following technological means:
A stepless speed variator for high functional safety,
The stepless speed variator of described high functional safety comprises: oil pump 1, oil temperature sensor 2, lubricating oil filter 3, vacuum signal-transmitting machine 4, oil temperature sensor 5, cone dish 6 determined by driving shaft, with the driving shaft mantle dish 7 of pressurizing nut, motor drives speed regulating mechanism 8, speed governing nut 801, speed adjustment screw 802, initiative taper dish pressurizing mechanism 9, be made in the initiative taper dish pressurization screw rod 901 initiatively pressurizeed on screw axis, initiative taper dish pressurizing nut 902, initiatively pressurize screw axis 10, power input shaft speed probe 11, speed-adjustable motor position transducer 12, dry clutch 13, clutch motor position transducer 14, clutch position sensor 15, advance reverse gear switching mechanism 16, clutch position sensor 17, shift motor position transducer 18, power output shaft speed sensor 19, driving shaft mantle dish position transducer 20, flexible transmission component 21, driven shaft determines cone dish 22, driven shaft mantle dish position transducer 23, with the driven shaft mantle dish 24 of pressurizing nut, sliding pair 25, holddown spring 26, from mantle dish pressurizing mechanism 27, on driven pressurization screw axis from mantle dish pressurization screw rod 2701, on driven shaft mantle dish from mantle dish pressurizing nut 2702 and driven pressurization screw axis 26.
As preferably, on the transmission shaft be connected on input cone dish axle or with input cone dish axle, be provided with tach signal generating means, on housing, be provided with rotary speed signal sensor simultaneously; On the transmission shaft be connected on output cone dish axle or with input cone dish axle, be provided with tach signal generating means, on housing, be provided with rotary speed signal sensor simultaneously;
Mantle dish be provided with or be connected with cone dish position signal generating means with mantle dish axial restraint, on housing, being provided with cone dish position signal sensor simultaneously;
Described tach signal generating means and described rotary speed signal sensor are for measuring and transmit the rotating speed of input cone dish or output cone dish;
Described cone dish position signal generating means and described cone dish position signal sensor are used for measuring and transmitting cone dish position.
As preferably, the stepless speed variator of described high functional safety is provided with lubricating pump, and wherein inlet port is positioned at stepless speed variator lower case; Oil outlet through filter cleaner, enters 2 piece cone dish axles by cone dish spindle oil entrance by oil duct pipeline; Wherein lubricant pipe is provided with 2 lubricating oil temperature sensors, wherein 1 is arranged at outside the oil duct between the inlet port of lubricating pump and oil outlet, and other 1 is arranged between oil pump oil outlet and cone dish spindle oil entrance.
As preferably, 2 lubricating oil temperature sensors that lubricant pipe is arranged, the stepless speed variator lower housing portion wherein outside 1 oil duct being arranged between the inlet port of lubricating pump and oil outlet.
As preferably, the stepless speed variator of described high functional safety is provided with speed reducer, clutch motor drives dry clutch to realize clutch separation and combination by speed reducer, rotary angle transmitter is set in one end, clutch motor ground, clutch reduction mechanism arranges clutch position sensor; Described rotary angle transmitter turns over angle for measuring clutch motor; Establish advance reverse gear switching mechanism in the stepless speed variator of described high functional safety, shift motor connects plug by speed reducer, and shift motor drives plug that synchronizer is switched between advance and reverse gear pair; Shift motor position transducer is set in motor one end, speed reducer arranges synchronizer position transducer.
As preferably, the stepless speed variator of described high functional safety comprises: at least two transmission shafts parallel to each other, near the input cone dish axle of power intake, near the output cone dish axle of clutch end; Include mantle dish in often pair of cone dish, and determine cone dish, between cone dish, be clamped with flexible transmission component.
As preferably, described cone dish position signal generating means is connected with mantle dish axial restraint with bearing type, and is set to relatively rotate the structural ring channel structures coaxial with mantle dish with mantle dish; Described cone dish position signal sensor is angle transducer, and its angle measurement element connects a fork, and the other end of fork stretches in described circular groove.
As preferably, described cone dish position signal generating means is connected with mantle dish axial restraint with bearing type, and be set to can be structural in relative rotation with mantle dish, and the planar annular form of spin axis and mantle disc spins axis coaxle; Described cone dish position signal sensor is linear displacement transducer, its straight-line displacement measuring cell and described planar annular by push rod or pull rod shaft to being fixedly connected with.
As preferably, described angle transducer and cone dish position signal generating means thereof, be arranged on input cone dish axle or export on cone dish axle, or on input cone dish axle and export on cone dish axle angle transducer and cone dish position signal generating means thereof are all set.
As preferably, described linear displacement transducer and cone dish position signal generating means thereof, be arranged on input cone dish axle or export on cone dish axle, or described linear displacement transducer and cone dish position signal generating means thereof are all set on input cone dish axle and on output cone dish axle.
As preferably, described angle transducer and cone dish position signal generating means thereof and described linear displacement transducer and cone dish position signal generating means thereof are separately positioned on input cone dish axle and export on cone dish axle.
As preferably, vacuum sensor, vacuum signal-transmitting machine or vacuum switch are set between lubricating pump entrance and lubricating pump.
As preferably, mantle dish is connected with speed control system, speed control system comprises speed-adjustable motor and speed governing reducing gear; Hall transducer or rotating coder is provided with in speed-adjustable motor.
As preferably, in housing, be provided with flow guide structure, the lubricant oil of splashing is imported between cone dish and flexible transmission component.
As preferably, the material of determining cone dish and mantle dish is Cr-Mo alloyed steel, the compositions in weight percentage content of described Cr-Mo alloyed steel is: C:0.16 ~ 0.20%, Si:0.06 ~ 0.15%, Mn:0.68 ~ 0.95%, Cr:1.25 ~ 1.54%, Mo:0.58 ~ 0.68%, Nb:0.010 ~ 0.038%, RE:0.025 ~ 0.082%, P < 0.02%, S < 0.02%, surplus is Fe and impurity, and wherein in impurity, dissolved oxygen content is 6 ~ 12ppm.
Further preferably, the material of determining cone dish and mantle dish is Cr-Mo alloyed steel, the compositions in weight percentage content of described Cr-Mo alloyed steel is: C:0.18 ~ 0.19%, Si:0.08 ~ 0.12%, Mn:0.82 ~ 0.92%, Cr:1.32 ~ 1.48%, Mo:0.60 ~ 0.66%, Nb:0.021 ~ 0.032%, RE:0.042 ~ 0.076%, P < 0.01%, S < 0.01%, surplus is Fe and impurity, and wherein in impurity, dissolved oxygen content is 8 ~ 10ppm.
A kind of automobile, its stepless speed variator adopts the stepless speed variator of aforesaid high functional safety.
A kind of dynamic power machine, it is characterized in that, described dynamic power machine adopts stepless speed variator, and its stepless speed variator adopts the stepless speed variator of aforesaid high functional safety.
A kind of power generating equipment, it is characterized in that, described power generating equipment adopts stepless speed variator, and its stepless speed variator adopts the stepless speed variator of aforesaid high functional safety.
Effect of the present invention is:
1, for avoiding altogether because property lost efficacy, the present invention is by arranging tach signal generating means and rotary speed signal sensor and cone dish position signal generating means and cone dish position signal sensor, on the transmission shaft measured respectively on input cone dish axle with rotary speed signal sensor or be connected with gear or silent chain mode with input cone dish axle and the tach signal of transmission shaft exporting cone dish axle or be connected with gear or silent chain mode with output cone dish axle, while can speed ratio being obtained by input output rotating speed.Record cone dish position signal with cone dish position signal sensor also can convert and obtain speed ratio value, and revolution and/or position transducer are set on speed-adjustable motor, if the signal of such different operating principle finds three tunnel measurement results of gear ratio, rotating speed, cone dish position, speed-adjustable motor rotating cycle are variant, under the prerequisite that acquiescence only has a road to lose efficacy, what can judge inefficacy is which, thus reach the object of non-common cause failure, thus greatly improve the functional safety of stepless speed variator;
2, by arranging 2 cover lubrication and cooling executive systems, a set of is nature splash lubrication, and the another set of forced lubricating system driven for oil pump, is provided with 2 lubricating oil temperature sensors, judges oil pump whether fault with two temperatures sensor temperature approach.Thus improve the functional safety of stepless speed variator;
3, by arranging the dry clutch between stepless speed variator and motor, clutch separation motor drives clutch shifter dry clutch is separated and combines by speed reducer, is provided with on clutch position sensor and clutch motor simultaneously and is provided with motor position sensor on speed reducer.Advance reverse gear switching mechanism is provided with in stepless speed variator, advance reverse gear switch motor drives shift fork that synchronizer is switched between advance and reverse gear pair by speed reducer, and the present invention is provided with synchronizer position transducer and is provided with motor position sensor on motor on speed reducer.Whole system is set up from sensor selection and cloth and avoids, altogether because property lost efficacy, making this high functional safety stepless speed variator really realize safe and reliable as far as possible;
4, improve for the material of determining cone dish and mantle dish, by the adjustment to Addition ofelements such as Cr, Mo and rare earth RE, the intensity of determining cone dish and mantle dish is obtained increase substantially, and ensure that its good machining property, by rationally limiting the content of dissolved oxygen, under the prerequisite ensureing final performance, reduce process costs.By the improvement of above-mentioned material, make allly in the present invention to determine cone dish and mantle dish can both be stepless speed variator service better, improve the reliability of stepless speed variator.
Embodiment:
The stepless speed variator of height functional safety of the present invention, is provided with at least two transmission shafts parallel to each other, wherein two transmission shafts respectively have respectively-to cone dish, be clamped with a flexible transmission component between cone dish.
As shown in Figure 1, the stepless speed variator of height functional safety of the present invention, mainly comprises: oil pump 1, oil temperature sensor 2, lubricating oil filter 3, vacuum signal-transmitting machine 4, oil temperature sensor 5, cone dish 6 determined by driving shaft, with the driving shaft mantle dish 7 of pressurizing nut, motor drives speed regulating mechanism 8, speed governing nut 801, speed adjustment screw 802, initiative taper dish pressurizing mechanism 9, be made in the initiative taper dish pressurization screw rod 901 initiatively pressurizeed on screw axis, be made in the initiative taper dish pressurizing nut 902 on driving shaft mantle dish, initiatively pressurize screw axis (driving shaft) 10, power input shaft speed probe 11, speed-adjustable motor position transducer 12, dry clutch 13, 14-clutch motor position transducer, clutch position sensor 15, advance reverse gear switching mechanism 16, clutch position sensor 17, shift motor position transducer 18, power output shaft speed sensor 19, driving shaft mantle dish position transducer 20, flexible transmission component 21, driven shaft determines cone dish 22, driven shaft mantle dish position transducer 23, with the driven shaft mantle dish 24 of pressurizing nut, sliding pair 25, holddown spring 26, from mantle dish pressurizing mechanism 27, be made on driven pressurization screw axis from mantle dish pressurization screw rod 2701, be made on driven shaft mantle dish from mantle dish pressurizing nut 2702, driven pressurization screw axis (driven shaft) 26 etc., concrete structure is as follows:
Initiatively pressurize and screw axis 10 is provided with the cone dish that a pair conical surface be oppositely arranged: cone dish 6 determined by driving shaft mantle dish 7 and the driving shaft of band pressurizing nut, driven pressurization screw axis 28 is provided with the cone dish that a pair conical surface is oppositely arranged: driven shaft determines the driven shaft mantle dish 24 of cone dish 22 and band pressurizing nut; Initiatively pressurize between the cone dish on screw axis 10 and the cone dish on driven pressurization screw axis 28 and clamp flexible transmission component 21, be in transmission connection by flexible transmission component 21;
Driving shaft is determined cone dish 6 and is installed on the driving shaft mantle dish 7 of band pressurizing nut and initiatively pressurize on screw axis 4, is with the driving shaft mantle dish 7 of pressurizing nut to be set in be made in the initiative taper dish initiatively pressurizeed on screw axis 11 to pressurize on screw rod 901; Driving shaft mantle dish 7 with pressurizing nut and driving shaft are determined to be connected by ball key between cone dish 6, can ensure that these two cone dishes can move to axial, can not relatively rotate, driving shaft is determined cone dish 6 and is installed on by bearing and initiatively pressurizes on screw axis 10, and the back side of the driving shaft mantle dish 7 of band pressurizing nut is provided with motor and drives speed regulating mechanism 8.
Driven shaft is determined cone dish 22 and is installed on driven pressurization screw axis 28 with the driven shaft mantle dish 24 of band pressurizing nut, the driven shaft mantle dish 24 of band pressurizing nut be set in be made on driven pressurization screw axis 28 from mantle dish pressurization screw rod 2701; Driven shaft is determined cone dish 22 and is with between the driven shaft mantle dish 24 of pressurizing nut to be connected by sliding pair, can ensure that these two cone dishes can move to axial, can not relatively rotate, driven shaft is determined cone dish 22 and is installed on driven pressurization screw axis 28 by bearing, and the back side of the driven shaft mantle dish 24 of band pressurizing nut is provided with holddown spring 26.
Oil pump 1 filler opening termination lubricating oil purifier 3, oil outlet connects cone dish spindle oil entrance and enters 2 cone dish axles, lubricating oil temperature sensor 5 is arranged at stepless speed variator lower housing portion, lubricating oil temperature sensor 2 is arranged between oil pump oil outlet and cone dish spindle oil entrance, between lubricating pump entrance and lubricating pump, arrange vacuum sensor.
Clutch motor drives dry clutch 13 to realize clutch separation and combination by speed reducer, and rotary angle transmitter is arranged at clutch motor one end, measures clutch motor and turns over angle, arrange clutch position sensor 15 in clutch reduction mechanism.
Establish advance reverse gear switching mechanism 16 in stepless speed variator, shift motor connects plug by speed reducer, and shift motor drives plug that synchronizer is switched between advance and reverse gear pair.Shift motor position transducer 18 is set in motor one end, synchronizer position transducer is set on speed reducer.
Power input shaft rotary speed signal sensor 11 is arranged on stepless speed variator housing, output speed sensor 19 arranges on stepless speed variator housing, motor position sensor 12 is set simultaneously on stepless speed variator speed-adjustable motor, mantle dish is provided with cone dish position signal generating means, cone dish position signal sensor 20 and 23 is arranged at housing relevant position and arranges.
The foregoing is only better embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Accompanying drawing illustrates:
Fig. 1 is specific embodiment of the invention schematic diagram.
In figure, 1-oil pump; 2-oil temperature sensor; 3-lubricating oil purifier; 4-vacuum signal-transmitting machine; 5-oil temperature sensor; Cone dish determined by 6-driving shaft; 7-is with the driving shaft mantle dish of pressurizing nut; 8-motor drives speed regulating mechanism; 801-speed governing nut; 802-speed adjustment screw; 9-initiative taper dish pressurizing mechanism; 901-is made in the initiative taper dish pressurization screw rod initiatively pressurizeed on screw axis; 902-is made in the initiative taper dish pressurizing nut on driving shaft mantle dish; 10-initiatively pressurizes screw axis (driving shaft); 11-power input shaft speed probe; 12-stepless speed variator speed-adjustable motor position transducer; 13-dry clutch; 14-clutch motor position transducer; 15-clutch position sensor; 16-advance reverse gear switching mechanism; 17-clutch position sensor; 18-shift motor position transducer; 19-power output shaft speed sensor; 20-driving shaft mantle dish position transducer; 21-flexible transmission component; 22-driven shaft determines cone dish; 23-driven shaft mantle dish position transducer; 24-is with the driven shaft mantle dish of pressurizing nut; 25-sliding pair; 26-holddown spring; 27-is from mantle dish pressurizing mechanism; 2701-be made on driven pressurization screw axis from mantle dish pressurization screw rod; 2702-be made on driven shaft mantle dish from mantle dish pressurizing nut; The driven pressurization screw axis (driven shaft) of 26-; A-power inputs; B-Power output.
Claims (10)
1. a stepless speed variator for high functional safety, is characterized in that: the stepless speed variator of described high functional safety comprises: oil pump (1), oil temperature sensor (2), lubricating oil filter (3), vacuum signal-transmitting machine (4), oil temperature sensor (5), cone dish (6) determined by driving shaft, driving shaft mantle dish (7), motor drives speed regulating mechanism (8), speed governing nut (801), speed adjustment screw (802), power input shaft speed probe (11), speed-adjustable motor position transducer (12), dry clutch (13), clutch motor position transducer (14), clutch position sensor (15), advance reverse gear switching mechanism (16), clutch position sensor (17), shift motor position transducer (18), power output shaft speed sensor (19), driving shaft mantle dish position transducer (20), flexible transmission component (21), driven shaft determines cone dish (22), driven shaft mantle dish position transducer (23), driven shaft mantle dish (24),
On the transmission shaft wherein inputted on cone dish axle or is connected with input cone dish axle, be provided with tach signal generating means, while on housing, be provided with speed probe; On the transmission shaft be connected on output cone dish axle or with output cone dish axle, be provided with tach signal generating means, on housing, be provided with speed probe simultaneously;
Mantle dish be provided with or be connected with cone dish position signal generating means with mantle dish axial restraint, on housing, being provided with cone dish position transducer simultaneously;
Described mantle dish is connected with arrangements for speed regulation, and arrangements for speed regulation comprise speed-adjustable motor and speed governing reducing gear;
Hall transducer or rotating coder is provided with in speed-adjustable motor.
2. the stepless speed variator of high functional safety according to claim 1, is characterized in that,
The stepless speed variator of described high functional safety is provided with lubricating pump, and wherein inlet port is positioned at stepless speed variator lower case; Oil outlet through filter cleaner, enters 2 piece cone dish axles by cone dish spindle oil entrance by oil duct pipeline; Wherein lubricant pipe is provided with 2 lubricating oil temperature sensors, wherein 1 is arranged at outside the oil duct between the inlet port of lubricating pump and oil outlet, and other 1 is arranged between oil pump oil outlet and cone dish spindle oil entrance.
3. the stepless speed variator of high functional safety according to claim 1, it is characterized in that, the stepless speed variator of described high functional safety is provided with speed reducer, clutch motor drives dry clutch to realize clutch separation and combination by speed reducer, rotary angle transmitter is set in one end, clutch motor ground, clutch reduction mechanism arranges clutch position sensor; Described rotary angle transmitter turns over angle for measuring clutch motor; Establish advance reverse gear switching mechanism in the stepless speed variator of described high functional safety, shift motor connects plug by speed reducer, and shift motor drives plug that synchronizer is switched between advance and reverse gear pair; Shift motor position transducer is set in motor one end, speed reducer arranges synchronizer position transducer.
4. the stepless speed variator of the high functional safety according to any one of claims 1 to 3, it is characterized in that, the stepless speed variator of described high functional safety comprises: at least two transmission shafts parallel to each other, near the input cone dish axle of power intake, near the output cone dish axle of clutch end; Include mantle dish in often pair of cone dish and determine cone dish, between cone dish, being clamped with flexible transmission component.
5. the stepless speed variator of the high functional safety according to any one of claim 2 ~ 3, is characterized in that: between lubricating pump entrance and lubricating pump, arrange pressure transducer, pressure switch, vacuum sensor, vacuum signal-transmitting machine or vacuum switch.
6. the stepless speed variator of the high functional safety according to any one of claim 2 ~ 3, is characterized in that: be provided with flow guide structure in housing, is imported between cone dish and flexible transmission component by the lubricant oil of splashing.
7. the stepless speed variator of the high functional safety according to any one of claim 1 ~ 6, it is characterized in that: determine the material of cone dish and mantle dish for being Cr-Mo alloyed steel, the compositions in weight percentage content of described Cr-Mo alloyed steel is: C:0.16 ~ 0.20%, Si:0.06 ~ 0.15%, Mn:0.68 ~ 0.95%, Cr:1.25 ~ 1.54%, Mo:0.58 ~ 0.68%, Nb:0.010 ~ 0.038%, RE:0.025 ~ 0.082%, P < 0.02%, S < 0.02%, surplus is Fe and impurity, wherein in impurity, dissolved oxygen content is 6 ~ 12ppm.
8. an automobile, is characterized in that, its stepless speed variator adopts the stepless speed variator of the high functional safety described in any one of claim 1 ~ 6.
9. a dynamic power machine, is characterized in that, described dynamic power machine adopts stepless speed variator, and its stepless speed variator adopts the stepless speed variator of the high functional safety described in any one of claim 1 ~ 6.
10. a power generating equipment, is characterized in that, described power generating equipment adopts stepless speed variator, and its stepless speed variator adopts the stepless speed variator of the high functional safety described in any one of claim 1 ~ 6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510197563.9A CN104879483A (en) | 2015-04-21 | 2015-04-21 | Continuously variable transmission with high function security and power machinery with continuously variable transmission |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510197563.9A CN104879483A (en) | 2015-04-21 | 2015-04-21 | Continuously variable transmission with high function security and power machinery with continuously variable transmission |
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| CN104879483A true CN104879483A (en) | 2015-09-02 |
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Application publication date: 20150902 |