Muscular drive

FIELD: transport engineering; bicycles.

SUBSTANCE: invention is designed for devices automatically changing gear ratio without interruption of power flow. Proposed drive contains two differentials. Force sensor 5 is installed between input shaft 8 and common input of both differentials, namely power differential 1 and regulating second differential 2. Said force sensor 5 cuts in braking device 4 at rise of load, said braking devices is idling at direct drive and is connected with regulating input of second differential 2. As a result, output gear 21 of second differential 2 starts rotating and self-braking drive 3 releases carrier 25 of power differential 1. Proposed drive automatically changes over from direct drive to drive with changed gear ratio. Moment of changing over can be regulated by tensioner 6 of spring 19 of force sensor.

EFFECT: facilitated selection of step-down gear in wide range of gear ration depending on individual capabilities of user.

1 dwg

 

The invention relates to the field of engineering, and in particular to mechanisms with a muscular drive.

Known mechanism with a muscular drive patent No. 2048365, MKI 62 M 9/08, 1995, containing a driving wheel variable radius, the driven sprocket covered by the chain attached to the frame of the device the tension of the chain, sprocket variable radius, consisting of moving in the radial direction sectors with secured at their ends all stars.

The disadvantage of this invention is a small range of change gear ratios, torque ripple due to the fact that the drive sprocket is made multifaceted and complicated algorithm changes gear ratios.

The closest in technical essence and the achieved result is a prototype, is the mechanism by A.S. No. 1643307, MKI 62 M 9/06, 1991, containing the leading asterisk, made of elastic elements that, when the traction deformed, reducing the diameter of the drive sprocket, automatically increasing gear ratio.

The disadvantage of this mechanism is the small change of gear ratio and the inability to adapt the drive to the physical abilities of the user.

The objective of the invention is to expand the range of change of gear ratio and the ability and is aptly to the physical abilities of the user.

The problem is solved due to the fact that muscle actuator, made in the form of a device for automatic changes of gear ratio according to the formula of the invention, consists of two differentials, effect send, podtormazhivaja device, the force sensor and tensioner spring, the actuator is made in the form of a power differential gears, the entrance of which is through a force sensor connected to the input shaft, regulating the input to the slave link effect the transfer, the leading element of which is connected to the output of the second differential input connected to the input of the power differential regulating the input of the second differential connected to podtormazhivaja device, which is connected with the sensor the effort that has the tensioner spring.

This set of features is new and involves an inventive step as muscle actuator, made in the form of a power differential gears, the entrance of which is through a force sensor connected to the input shaft, and regulatory input to the slave link effect transfer allows you to change the gear ratio in a wide range. The use of the tensioner spring allows to adapt the mechanism to the physical abilities of the user.

Effect the transfer of work in re is the ima release, acting as a mechanical amplifier when the host link runs away from rolling his slave link, setting the speed of rotation of the latter. The closer effect the transfer is completed to the border of the automatic braking, the less force is needed to control the amplifier and the correspondingly higher gain (A.A. Blagonravov Mechanical stepless transmission non-friction type. - M.: Mashinostroenie, 1977, p.59).

The drawing is a schematic representation of the proposed muscular drive.

Muscle actuator consists of a power differential 1 governing differential 2, effect send 3, podtormazhivaja device 4, the force sensor 5, tensioner spring 6, the output shaft 7, the input shaft 8, the shaft 9, 15, gears 10, 11, 12, 13, 14, 16, 17, 18, 21, 24, 26, leading link 22, the drive link 23, a mechanical connection 20, the spring 19.

Muscle actuator operates as follows.

In the strength of the kinematic chain 8-5-9-10-11-12-7 rotation with the input shaft 8 is transmitted to the output shaft 7, while control of the kinematic chain 8-5-9-13-14-15-16-17-18-26-4 rotation is transmitted to podtormazhivaja unit 4, located in the deviant condition. This links 25-24-23-22-21 fixed and the mechanism is in the position of direct transmission. With increasing load on the output shaft 7, the force on power kinematic capitalized on the force sensor 5 and the excess of the efforts over the values given the characteristics of the sensor 5 and the stiffness of the spring 19, the latter starts to be compressed and the force sensor 5 through the connection 20 closes podtormazhivaja device 4, forcing to rotate the gear 21. Gear 21 connected to the driving member 22 to effect transfer 3 begins to rotate, allowing you to rotate the slave unit 23, under load transmitted to it from the power differential 2 kinematic chain 25-24-23.

The speed of the output shaft 7 is reduced and set to a certain gear ratio of the mechanism corresponding to the current load and preventing the increase of the load on the input shaft 8. Changing the value of the preload of the spring 19 tensioner 6, it is possible to adjust the mechanism under the physical abilities of the user.

Thus, this mechanism allows you to change the gear ratio in a wide range and to adjust to the physical abilities of the user.

Muscle actuator, made in the form of a device for automatic changes of gear ratio, characterized in that it consists of two differential - power differential and regulating the second differential effect transfer, podtormazhivaja device, the force sensor and tensioner spring, the actuator is made in the form of a power differential gears, input cat who swarm through the force sensor is connected to the input shaft, there is a regulating input of the power differential associated with the slave link effect the transfer, the leading element of which is connected to the output of the second differential input of which is kinematically connected to the input of the power differential regulating the input of the second differential connected to podtormazhivaja device, which is connected with the force sensor, which has a tensioner spring.



 

Same patents:

Differential // 2267676

FIELD: mechanical engineering.

SUBSTANCE: differential comprises housing (1), cross-shaped or straight shaft (5) of satellites, a number of satellites (4), and gear pair (2) of semiaxles. When gears (2) of semiaxles cooperate with satellites (4) the gear ratio changes at least in two stages. The number of stages is multiple to the number of teeth in satellites (4) and gears (2) of the semiaxles.

EFFECT: expanded functional capabilities.

16 cl, 5 dwg, 1 tbl

FIELD: transport engineering.

SUBSTANCE: proposed differential has case 1 which accommodates coaxially installed axle-shafts of drive wheels, cages 7, 8, driven bushings 3, 4 with splines for connection with drive wheel axle-shafts coaxially installed in cages. Case 1 is made in form of cylindrical bushing on inner surface of which longitudinal wedging cavities for rollers 5, 6 are made. Each roller in each cavity can move along driven bushing from one wedging position into the other. Cages 7, 8 are made in form of hollow cylinders with rectangular holes on surface whose number corresponds to number of longitudinal wedging cavities for rollers. On end face surface of cages 7, 8 at least one slot is made on end face surface of one cage and hole with rigidly fitted-in pin on end face surface of other cage. Pin of one cage gets into slot of other cage forming movable link for angular displacement of cages in relatively opposite directions.

EFFECT: improved reliability, roadability and safety of vehicle.

5 dwg

The invention relates to the field of engineering, in particular to driving axles for cars and motorcycles supplied by the differential mechanisms to ensure non-rigid kinematic connection between the two wheels of the axle

The invention relates to transport machinery and can be used in a four-wheel drive

The invention relates to the transport industry, in particular to the structure of the cross-axle differential mechanisms

The invention relates to the automotive industry and can be used, in particular, in the automobile and minigroove cars

The invention relates to the field of engineering

The invention relates to vehicles, particularly to a differential mechanisms

The invention relates to mechanical engineering and can be used in vehicles terrain

The invention relates to the field of mashinostroenia and can be used in vehicles terrain

The invention relates to the controls of the vehicle, in particular to the mechanisms of the gearbox shift motorcycle engine

The invention relates to the field of engineering, namely, devices for locking the bevel differentials vehicles

Muscular drive // 2270780

FIELD: transport engineering; bicycles.

SUBSTANCE: invention is designed for devices automatically changing gear ratio without interruption of power flow. Proposed drive contains two differentials. Force sensor 5 is installed between input shaft 8 and common input of both differentials, namely power differential 1 and regulating second differential 2. Said force sensor 5 cuts in braking device 4 at rise of load, said braking devices is idling at direct drive and is connected with regulating input of second differential 2. As a result, output gear 21 of second differential 2 starts rotating and self-braking drive 3 releases carrier 25 of power differential 1. Proposed drive automatically changes over from direct drive to drive with changed gear ratio. Moment of changing over can be regulated by tensioner 6 of spring 19 of force sensor.

EFFECT: facilitated selection of step-down gear in wide range of gear ration depending on individual capabilities of user.

1 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to methods of control of differential locking of multidrive wheeled vehicles and it can be used at designing of systems to control tractive forces of driving wheels of multidrive vehicles and carrying out investigations of wheeled vehicles. proposed method of control of differential locks comes to locking of differential for definite periods of time at threshold values of mismatching of mechanical parameters of driving wheels intercoupled by said differential and unlocking differential at expiration of definite of time or at achievement of threshold value of steerability index. Unlocking of differentials at achievement of threshold value of steerability index is carried out individually, starting from differential whose locking has greater effect on steerability of wheeled vehicle.

EFFECT: enlarged range of control of traction forces on driving wheels to increase cross-country capacity and traction and speed properties at provision of required steerability of multidrive wheeled vehicles.

1 dwg

FIELD: mechanical engineering; vehicle transmissions.

SUBSTANCE: proposed differential contains case 1, side gears 2, and 3, planet pinions and locking device. Locking devices is made in form of ring shifter 7 connected with drive 8, pushers 10 arranged inside axles 9 of planet pinions, intermediate members and locking members. Differential includes also elastic stop, and spring inserts 17 and 18 placed between case 1 and rear surfaces 20 and 21 of side gears 2 and 3. Grooves are made on end face front surfaces of side gears 2 and 3. Said grooves have wavy profile corresponding to profile of locking members, and number of radial grooves is even.

EFFECT: prevention of failure of differential lock caused by wedging of locking members between side gears, and falling out of locking members at unlocking, provision of stepless row of values of locking coefficient.

5 cl, 6 dwg

FIELD: automotive industry.

SUBSTANCE: proposed device comprises differential mechanism, driving force regulator and differential limiter. Differential mechanism can distribute driving forces generated by vehicle drive for LH and RH wheels to allow differential torque on said LH and RH wheels. Driving force regulator regulates each distributed driving force. Differential limiter limits torque difference between LH and RH wheels by applying limiting torque to differential mechanism.

EFFECT: higher stability.

4 cl, 9 dwg

FIELD: transport.

SUBSTANCE: invention relates to vehicles with all-wheel drive. All-wheel drive truck includes cabin, cargo body, transmission to transfer torque moment from engine to front and rear driving axles. In the kinematic chain of transmission, there is transfer gear with interaxle differential. Interaxle differential comprises two planetary gear sets. The planetary gear sets are switched by gear clutch. The gear clutch is driven by piston. The piston is located in two-section chamber communicating with working fluid pressure source via four-way on/off control valve. The control valve is operated by electric magnet. The electric magnet is connected to step switch. The step switch is driven from rear driving axle beam.

EFFECT: better drivability and flotation of vehicle.

3 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to vehicles with all-wheel drive. The truck comprises cabin, cargo body, strain gauge, transmission to transfer torque moment from engine to front and rear driving axles. In the kinematic chain of driveline, transmission with clutch and transfer gear with interaxle differential is located. Interaxle differential comprises two planetary gear sets. The planetary gear sets are switched by gear clutch. The gear clutch is driven by piston. The piston is located in two-section chamber communicating with working fluid pressure source via four-way hydraulic on/off control valve. Hydraulic control valve is operated by electric magnet. The electric magnet is connected to strain gauge via threshold element. The strain gauge responds to cargo presence in truck body.

EFFECT: better drivability and flotation of vehicle.

3 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to vehicles with all-wheel drive. The truck comprises frame, body, strain gauge, driveline including interaxle differential. Interaxle differential comprises two planetary gear sets. The planetary gear sets are switched by gear clutch. The gear clutch is hydraulically driven by piston. The piston is located in two-section working chamber. The working chamber communicates with working fluid pressure source through hydraulic on/off control valve. Hydraulic control valve is operated by electric magnet. The electric magnet by one its electric circuit is connected via threshold element to strain gauge, and by its other electric circuit - to transmission low gear actuation sensor. In the electric circuit connecting electric magnet with strain gauge, self-reset circuit-opening relay contact. The contact is connected to transmission high gear actuation sensor.

EFFECT: better drivability and flotation of vehicle.

2 cl, 2 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Vehicle comprises set of wheels mounted at the frame. Every wheel is engaged with engine to drive the vehicle. Self-locking differential gear is supported by the frame. First and second half-axles are engaged with said self-locking differential gear. First half-axle supports first wheel of aforesaid set. Second half-axle supports second wheel of aforesaid set. Brake is engaged with self-locking differential gear. Said brake selectively applies braking force to said first and second wheels via one part of self-locking differential gear to reduce vehicle speed. When said brake is engaged, control unit selectively increases engagement of self-locking differential gear in response to difference in rpm of said first and second wheels exceeding the first preset rpm. Invention covers also the method of vehicle control.

EFFECT: better braking, minimised and well-centered vehicle weight.

15 cl, 18 dwg

Up!