283results about How to "Reduce unsprung mass" patented technology

The invention discloses a bogie for a high-speed rail wagon. The bogie comprises a framework, wherein two transverse ends of the framework are connected with a wheel set through two single-stage suspension systems respectively; a double-stage suspension system and a foundation brake device are arranged on the framework; and the front side and the rear side of the framework are provided with an anti-snakelike damper respectively. By the bogie, two-grade requirements that the shaft weight is 16.5t when the speed of the wagon is 200km / h as well as the shaft weight is 18t when the speed of the wagon is 160km / h can be met simultaneously; and the bogie has the remarkable characteristics of simple structure, high popularity and reliable performance.

The invention provides a reverse tricycle. The reverse tricycle is characterized by comprising a deflection and steering mechanism, a rear-section frame, a driving wheel and two front wheels; the deflection and steering mechanism is arranged at the front end of the rear-section frame, the two front wheels are connected with the deflection and steering mechanism and symmetrically arranged on the left side and the right side of the front end of the rear-section frame with the rear-section frame as the axis of symmetry, and the driving wheel is arranged at the rear end of the rear-section frame. By the adoption of the technical scheme, a left rocking arm and a right rocking arm are coaxially hinged to a main frame, in the turning or inclining process, full parallelism can be achieved, the tricycle is driven more stably, and the left rocking arm and the right rocking arm are independent non-interference gravity center deflection systems; meanwhile, through the structure of a single shock absorber, the production cost of the reverse tricycle is greatly reduced.

The invention discloses a rapid freight car radial bogie. The rapid freight car radial bogie comprises an axle assembly, a frame, a swing bolster, a braking device, central suspension devices, a radial device, a side bearing device arranged on the swing bolster and an axle box suspension device, wherein the frame is installed on the axle assembly through the axle box suspension device, the two ends of the swing bolster are fixedly installed in the middle of the frame respectively through the central suspension devices, the frame is composed of two side beams and parallel cross beams connected with the side beams, and bearing platforms where the central suspension devices are installed are arranged outside the middle portions of the side beams. The rapid freight car radial bogie structure obviously reduces wheel-rail wear and wheel-rail noise, reduces wheel-rail acting force, reduces vehicle transverse vibration acceleration and improves vehicle operation lateral stability, straight line stability and curve line negotiating capacity. The unsprung mass of the bogie is reduced, the speed of the bogie is high, vehicle braking performance is improved, wheel-rail wear and wheel-rail noise are small, vehicle operation stability is good, and stability and safety are high.

The invention discloses an independent suspension system. Two suspension oil cylinders are arranged between wheel edges of wheels on two sides and a frame respectively, and a steering mechanism drives the wheels on the two sides to perform steering. Two upper V-shaped swing rods and two lower V-shaped swing rods are arranged corresponding to the wheels on the two sides. Rod connection end portions of the two upper V-shaped swing rods are hinged to the upper portions of the wheel edges of the wheels on corresponding sides through spherical hinges respectively, and rod separation end portions of the two upper V-shaped swing rods are hinged to fixing members fixed below the frame along the lateral direction. Rod connection end portions of the two lower V-shaped swing rods are hinged to the lower portions of the wheel edges of the wheels on corresponding sides through spherical hinges respectively, and rod separation end portions of the two lower V-shaped swing rods are hinged to the fixing members fixed below the frame along the lateral direction. By means of the independent suspension system, possible frustrating effects caused by the suspension oil cylinders can be avoided, mutual independent motion of the wheel on the left side and the wheel on the right side can be achieved reliably, adhesion conditions of the ground are fully utilized, and control stability of the complete machine is improved. On the basis, the invention further comprises a crane with the independent suspension system.

The invention discloses a structure and method for reducing the equivalent unsprung weight of a wheel electrically-driven system of a single trailing arm type suspension, which is characterized in that an elastic rubber hinge is supported on a frame, one end of a swing arm of the single trailing arm type suspension is connected with the elastic rubber hinge, and the other end of the swing arm is connected with a reducer casing; the reducer casing is connected with a sleeve of a half axle; a motor is fixedly arranged on the reducer casing, the power output end of the motor is connected with a small gear, then the small gear is meshed with the large gear, and the large gear is connected with the sleeve of the half axle; and after the gear reducing is performed, the power is outputted to a rim by the half axle so as to drive wheels. The equivalent unsprung weight is reduced by reducing the distance between the mass centre of non-concentric parts of a wheel and a central swing axis of the single trailing arm type suspension. The structure and method disclosed by the invention have the advantages of increasing the vibration frequencies of wheels, reducing the resonance, reducing the impact and vibration from road surfaces, and improving the running smoothness of vehicles.

The invention relates to an unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering and belongs to the field of electric automobiles. The unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering comprises an unequal double-wishbone suspension, a driving motor, a steering motor, a universal transmission shaft, a worm and gear reducer, a bevel pinion, a transmission bevel gear, a bevel gear wheel, a brake caliper, an axle housing and wheels, wherein the driving motor and the steering motor are both fixedly arranged on an automobile frame; the driving motor drives the wheels to rotate through the universal transmission shaft and gear transmission; the bevel gear wheel simultaneously plays the role of a brake disc; and the steering motor achieves steering of automobiles through the universal transmission shaft and the worm and gear reducer; the transmission bevel gear is sleeved on a master pin in empty mode; and a worm gear is connected with the master pin through a flat key. When automobiles steer, mutually independent operation of a driving system and a steering system can be achieved by reasonably controlling the rotate speed of the driving motor. The unequal double-wishbone suspension wheel side driving device capable of achieving large-angle steering not only achieves large-angle steering, but also reduces the unsprung mass of the automobiles, and improves the flexibility of the automobiles and riding comfort.

A snowmobile suspension system connected between a skid frame positioned below a chassis of a snowmobile. A limiter strap adjustment mechanism is connected between the chassis and the at least one limiter strap and selectively adjusts the length of the at least one limiter strap. A coupling arm adjustment mechanism is connected between the chassis and at least one coupling arm and selectively adjusts the length of the at least one coupling arm. A linear force device adjustment mechanism is connected between the chassis and the linear force device for adjusting the length and angle of the linear force device relative to the at least one rear arm resulting in control of the force displacement characteristics of the at least one rear arm.

The invention relates to a double-T-shaped framework elastic hinging flexible suspension direct driving radial steering frame, which comprises a steering frame framework, a shaft box device (4) and two permanent magnet direct driving motors (3), wherein the shaft box device (4) is used for positioning wheel pairs (5); the permanent magnet direct driving motor (3) is used for driving the wheel pairs (5); the steering frame framework is a double-T-shaped elastic hinging framework with the flexible function; each of the two permanent magnet direct driving motors (3) is arranged on a steering frame framework through a three-point type suspension mechanism, and respectively drives one wheel pair (5). Compared with the prior art, the double-T-shaped framework elastic hinging flexible suspension direct driving radial steering frame has the advantages that the flexible function of the steering frame is good; the adapting route twisting capability is high; the unsprung mass is light; the operation noise is low; the active radial function is realized, and the like.

A brake disk for a motor vehicle is provided. The brake disk includes a brake disk chamber and a friction ring arranged coaxially thereto, an outer casing surface of the brake disk chamber having a profile, which for torque transmission, engages in a complementary profile of an inner casing surface of the friction ring, and the friction ring being arranged axially secured to the brake disk chamber. At least one tab for axial securing is formed on the outer casing surface of the brake disk chamber.

An in-wheel motor system capable of maximizing the efficiency in using a wheel space by improving a mounting structure thereof, the in-wheel motor system installed at a wheel of a vehicle to transmit a rotational force including an axle installed at the wheel of the wheel and rotating together with the wheel, an in-wheel motor mounted inside the wheel and provided with a rotor and a stator that are used to generate a rotational force to drive the wheel, the rotor, and the stator disposed to face each other while having an accommodation space thereinbetween, a cycloid decelerator installed at a center of the in-wheel motor, and provided with an output shaft to transmit a rotational force at a reduced speed from the in-wheel motor to the axle and an input shaft that passes through the in-wheel motor and rotates together with the rotor, a disc installed at one end portion of the input shaft that protrudes by passing through the in-wheel motor, and a disc brake configured to provide a braking force by pressing the disc, wherein the in-wheel motor and the cycloid decelerator are disposed in a space formed inside the wheel.

The invention provides an automobile rear motor type connecting rod integrated rear axle suspension comprising an integrated rear axle shell body. A guide mechanism is arranged on the integrated rear axle shell body. The integrated rear axle shell body includes an axle shell, a cover body, and axle shaft sleeves arranged at the two ends of the axle shell and connected with wheels. The guide mechanism includes a longitudinal connecting rod mechanism arranged on the side walls of the two ends of the axle shell and a transverse connecting rod mechanism arranged on the upper end of the axle shell. The automobile rear motor type connecting rod integrated rear axle suspension further comprises shock absorbers which are longitudinally arranged at the two sides of the axle shell, and elastic elements which sleeve the shock absorbers respectively. The shock absorbers are disposed at the back of the guide mechanism. According to the invention, the longitudinal and transverse connecting rods of the guide mechanism bear the longitudinal force and transverse force in the running process of an automobile body, and the elastic elements and the shock absorbers jointly bear vertical load. Therefore, the dynamic unsprung mass is reduced, the dynamic sprung mass is increased, kinetic energy is released effectively, and the smoothness and comfort of a whole automobile are improved.

The invention discloses a structure for reducing the equivalent unsprung mass of a single cross arm suspension wheel-side electric driving system; an elastic rubber is supported on a rack in a hinging way; one end of an oscillating arm of a single cross arm suspension is connected with the elastic rubber in a hinging way; the other end of the oscillating arm of the single cross arm suspension is connected with an electric machine which is fixedly arranged on a speed reducing case; the speed reducing case is connected with a half shaft sleeve pipe; a power output end of the electric machine isconnected with a pinion gear which is meshed with a main gear; the main gear is connected with the half shaft sleeve pipe; and after the electric machine is decelerated by the gears, the power is output to rims so as to drive wheels. The distance from the mass center of parts which are not concentric with the wheels to the oscillation central axis of the single cross arm suspension is reduced, namely, the equivalent unsprung mass is reduced. The structure has the advantages of reducing the equivalent unsprung mass of the wheel-side driving system so as to increase vibration frequency of the wheels, reduce resonance vibration and impact and vibration from road surfaces and improve smoothness of automobile driving.

The invention relates to an equal-length double-crossarm suspension wheel rim driving device capable of realizing large-angel steering, belonging to the field of electric automobiles. The device comprises an equal-length double-crossarm suspension, a driving motor, a steering motor, a belt wheel with a changeable pitch, a steering belt, a driving belt wheel, a steering belt wheel, a small bevel gear, a large bevel gear, a main pin, a bridge shell, a braking clamp and wheels. The connection lines of the main shaft and upper and lower crossarms and the connection lines of the upper and lower crossarms and an automobile frame hinging point form a parallelogram; the driving motor and the steering motor are both arranged on the connection lines of the upper and lower crossarms and the automobile frame hinging point and fixedly arranged on an automobile frame; the driving motor is used for driving the wheel through belt driving and gear driving; the large bevel gear also serves as a braking disc; the steering motor realizes the steering of an automobile through belt driving; the driving belt wheel and the small bevel gear are both sleeved on the main pin; and the steering belt wheel is connected with the main pin through a flat key. When the automobile steers, the rotating speed of the driving motor is controlled reasonably so that a driving system and a steering system can work independently.

A snowmobile suspension system connected between a skid frame positioned below a chassis of a snowmobile. A limiter strap adjustment mechanism is connected between the chassis and the at least one limiter strap and selectively adjusts the length of the at least one limiter strap. A coupling arm adjustment mechanism is connected between the chassis and at least one coupling arm and selectively adjusts the length of the at least one coupling arm. A linear force device adjustment mechanism is connected between the chassis and the linear force device for adjusting the length and angle of the linear force device relative to the at least one rear arm resulting in control of the force displacement characteristics of the at least one rear arm.

The invention discloses an 80km / h speed class B-type subway vehicle bogie, which belongs to the field of subway vehicle bogies. The subway vehicle bogie consists of a framework, a driving device arranged on the framework and used for transmitting a driving force, a primary suspension, a secondary suspension arranged on the framework and used for supporting a vehicle body, a traction device for connecting the framework and the vehicle body and transmitting a traction force and a braking force, a side rolling resistant device for connecting the framework and the vehicle body and inhibiting the side rolling tendency of the vehicle body, a base braking device arranged on a side beam of the framework and used for transmitting power, and a third rail current receptor arranged on the side beam of the framework and playing a role in current reception. The subway vehicle bogie has the advantages of excellent dynamic performance, good comfort of passengers, low noise, reliable strength, high utilization rate of traction and adhesion, good running performance, high safety and reliability indexes, and excellent maintenance performance.

The invention discloses a novel bogie which comprises an axle system, a driving device, a framework, a primary suspension system, a secondary suspension system, a foundation braking device and a central traction device. The driving device is driven by a permanent magnet direct drive motor and is connected with the axle system, the axle system is connected with the framework through a primary suspension system, the primary suspension system is positioned at the inner end of the axle system, the secondary suspension system is installed on the framework, the foundation braking device is installedon the framework, the braking end of the foundation braking device faces the axle system, and the central traction device is installed in an air spring of the secondary suspension system. According to the bogie, the permanent magnet direct drive motor is adopted for driving the system, and the design that an axle box body is internally arranged is adopted, so that a framework cross beam is shortened, the rigidity of the framework is increased, the dead weight is reduced, the central single air spring secondary suspension system is adopted, the dynamic performance is improved, the noise produced by a vehicle in operation is reduced, and curve wheel-rail abrasion can be relieved to a certain extent.

The invention provides a low-power radial welding bogie comprising two wheel sets, a three-piece side welding beam and a crossbeam. Two ends of the side beam are connected with the wheel sets through primary rubber-metal pads and bearing saddles respectively. The wheel sets are connected with a wheel set connecting device through the bearing saddles. A crossbeam assembly is connected with the side beam through two secondary suspension systems. A foundation brake gear is suspended on the crossbeam assembly or the side beam. The secondary suspension systems have multiple structural styles, and the wheel sets are of variable- gauge structures. Compared with conventional freight car bogies, the low-power radial welding bogie has the advantages that the bogie is good in uniform load performance; defects of cast structure swing bolsters and side frame casting are avoided; wheeltrack acting force is reduced, and wear parts of the suspension systems are reduced; the variable-gauge wheel sets meet requirements on variable-gauge performance of the bogie; high-speed operation stability of the bogie is improved, and rim wear generated when the bogie passes curves is reduced; the bogie can meet the requirements on maximum axle load of 30t and highest running speed of 200km / h.

An in-wheel motor driving device (21) is provided with a motor section (A); a speed reduction section (B) which comprises an output shaft (28) that reduces the rotational speed of a motor rotation shaft (35) and outputs the resulting rotation, and a speed reduction section casing (22b) that forms an outer shell, this speed reduction section (B) being disposed at one location along the axial direction of the motor section (A); a wheel hub bearing section (C) which comprises a wheel hub (32) that is connected and fixed to the output shaft (28), and a wheel hub bearing outer race (22c) that rotatably supports the wheel hub (32), this wheel hub bearing section (C) being disposed at one location along the axial direction of the speed reduction section (B); and connection sections (63, 64) which are fixed to at least one of either the wheel hub bearing outer race (22c) or the speed reduction section casing (22b) and are meant to be connected to a vehicle body member.

The invention discloses a high speed rail vehicle as well as a bogie thereof and a wheel set driving device thereof. The wheel set driving device comprises a hollow axle, a driving wheel, a driven wheel and a driving brake unit, wherein the driving wheel is mounted at one end of the hollow axle, the driven wheel is mounted at the other end of the hollow axle, and the driving brake unit is mounted on the hollow axle; the driving brake unit is connected with the driving wheel through a connecting element so as to transmit a traction force and a brake force to the driving wheel; and the driving wheel transmits the traction force and the brake force to the driven wheel through the hollow axle. The high speed rail vehicle can singly pass through a 100 m small-radius curve and has good dynamics performance.

The invention discloses a rail wagon bogie single-stage shaft housing hanging and positioning device. The rail wagon bogie single-stage shaft housing hanging and positioning device comprises a shaft housing, a vertical hydraulic buffer, spring guide pillars, steel circular springs, rubber-metal pad locators and hoisting check blocks, wherein the vertical hydraulic buffer is arranged between the top of the shaft housing and a side frame of a framework assembly; the spring guide pillars, the steel circular springs and the rubber-metal pad locators are arranged between the upper surfaces of spring bearing platforms on the two sides of the shaft housing and the bottom of the framework assembly; the hoisting check blocks are arranged below the spring bearing platforms on the two sides of the shaft housing. The two-stage threaded connection method of the spring guide pillars is of an integrated design, so that the structure is simple and compact, the performance is reliable, stable positioning performance is guaranteed, the requirements for different positioning stiffness in the vertical direction, longitudinal direction and the transverse direction are met, the unsprung mass can be reduced, wheeltrack dynamic force is lowered, and wheeltrack abrasion is reduced; an infrared shaft temperature detection hole is formed in the bottom of a saddle surface of the shaft housing, so that the shortcoming that an infrared thermometry technology cannot be adopted for an existing rail wagon bogie single-stage shaft housing in the line operation process is overcome, the bearing temperature of a rail wagon in an operating state can be detected in real time, a hot box fault caused by detection omission can be avoided, and rail transportation safety is guaranteed.

The invention discloses an integrated external rotor electric wheel integrated structure and an assembly method. The integrated external rotor electric wheel integrated structure comprises a hub motor, decelerating mechanisms, a brake, a damping mechanism, a cooling mechanism, a rim and the like. The decelerating mechanisms comprise a first-level decelerating mechanism and a second-level decelerating mechanism, a rotor of the hub motor and a gear ring of the first-level decelerating mechanism are designed as an integrated structure, and a planetary frame of the first-level decelerating mechanism and a sun wheel of the second-level decelerating mechanism are designed as an integrated structure. Power is input by the rotor of the hub motor and output to wheels through the gear ring and the planetary frame of the first-level decelerating mechanism and the solar wheel and a planetary frame of the second-level decelerating mechanism to drive a vehicle to operate. Meanwhile, a brake disc ofthe brake and the planetary frame of the second-level decelerating mechanism are designed as an integrated structure, the brake disc of the brake rotates accordingly, and a brake caliper is mounted ona shell. The cooling mechanism adopts a mode of combining splash cooling and oil passage cooling to complete the overall cooling of the motor, the decelerating mechanisms, the brake and the like. Thesystem can be widely used in various wheels using different manufacturers / models, and has high universality.

The invention discloses a four-wheel pure electric drive electric car comprising main reducers and differential mechanisms. A front axle and a rear axle are designed by independent suspensions and are each divided into four drive half axles; the differential mechanisms are arranged inside the front axle and the rear axle; the drive half axles to which gears on the two sides of each differential mechanism belong are connected with the corresponding drive half axles close to hubs through flange plates; the front axle and the rear axle are each provided with two adjacent disc type motors which are connected in series through a flange plate or a coupler; an output shaft of each disc type motor is connected with a driving gear of the corresponding reducer through a flange plate; and the two sides of each reducer are each provided with two disc type motor controllers fixed to a car chassis. By designing the novel entire car structure, the two disc type motors of each axle are connected in series through the flange plate or the coupler, the output shaft of each motor is directly connected with the driving gear of the corresponding main reducer through the flange plate, and accordingly the torque and power doubling effect is achieved.

The invention discloses an integrated contra-rotating double-rotor electric wheel integrated structure. The integrated contra-rotating double-rotor electric wheel integrated structure comprises a contra-rotating double-rotor motor, a planetary reduction mechanism, a disc brake, a shock absorbing mechanism, a cooling mechanism, a rim, a tire and the like. By sufficiently utilizing a characteristicthat internal and external rotors of contra-rotating double rotors both have rotation speed and torque outputs, the contra-rotating double-rotor motor is used as a hub driving system power source to design an electric wheel integrated structure; and the integrated structure simultaneously considers vibration absorbing, cooling, sealing and braking design of the system so that a hub driving systemcan more stably work. According to the integrated contra-rotating double-rotor electric wheel integrated structure, the structural scheme can realize three driving modes so that the rotation speed andtorque ranges of the hub driving system in operation are enlarged, and the hub driving system can realize multi-condition output; and meanwhile, through adoption of the integrated structural design,the utilization rate of the interior space in the wheel is increased to enable the wheel to be conveniently used in a matched manner; and the integrated contra-rotating double-rotor electric wheel integrated structure can be widely applied to multiple pure electric vehicle models and can also be used for hybrid vehicles with these models.

The invention discloses an anti-drag device capable of adjusting the wheel spoke hole area automatically, and relates to an anti-drag device capable of changing the hole area between spokes automatically according to the automobile speed. The anti-drag device solves the problem that the wind drag coefficient of a wheel and fuel consumption are enlarged when an automobile is driven at high speed due to the fact that air eddy is generated in a wheel cavity or positions nearby with the existence of a hole between the spokes. The anti-drag device is composed of a supporting frame, foliated cover plates and connecting transmission parts arranged between the supporting frame and the foliated cover plates, the supporting frame is fixed on a wheel hub and is located between a brake disc flange and the wheel hub, and the foliated cover plates are capable of rotating around the supporting frame. The anti-drag device does not work when the automobile speed is lower so that heat generated by frequent braking of the automobile can be emitted effectively and cannot influence the automobile. The anti-drag device is capable of decreasing the hole area between the wheel spokes automatically along with the increase of the automobile speed until the wheel hole is close to entirely closed, so that the wind drag coefficient of the automobile wheel is reduced greatly, fuel consumption is reduced, and the automobile fuel economy is improved.

The invention discloses a single trailing arm suspension deceleration type wheel electric drive system. An A-shaped single trailing arm suspension swing arm is supported at two ends of a motor shaft through a sliding bearing and a sliding bearing cover and is connected with one end of an axle; the other end of the axle is connected with a hub through a hub bearing; the hub, a rim and a brake drumare fixedly connected through a bolt; a pinion wheel is arranged on an output shaft of a motor through a flat key; and a gear wheel is arranged on the brake drum through a plurality of bolts and is engaged with the pinion wheel. The invention has the advantages that: the single trailing arm suspension deceleration type wheel electric drive system is compact and has high transmission efficiency; the driving force of each wheel is independent and controllable to facilitate the operation stability and comfort of vehicles.

The invention discloses a variable gauge bogie provided with an adjustable unit braking device. The variable gauge bogie comprises a frame composition, a variable gauge wheel pair composition, a shaft box suspension device and a composite braking device containing a disc-shaped braking device and the adjustable unit braking device. The frame composition is of a H-shaped structure, and the rhombus resistance capacity is high; through the shaft box suspension technology, the unsprung mass is reduced, and vertical dynamic performance of a vehicle is improved; by adopting a variable gauge wheel pair, the operation requirements under different gauges are met; and the composite braking device comprises the disc-shaped braking device and the adjustable unit braking device, so that the requirement of a braking heat load under large shaft weight and high speed reduction under different gauge conditions is met. The variable gauge bogie is suitable for subway tunnels and railway main track vehicles with different gauges, and has strong social and economic benefits, the transport efficiency is improved, and transferring time is saved.

The invention discloses an electric wheel assembly, axle and vehicle suitable for twin-tire parallel loading wheels. The electric wheel assembly comprises wheels and a support shaft assembly, an innerrotor hub motor, a planetary gear reducer and a braking system. A planet carrier is connected with a wheel hub, the wheel hub connects a spoke and a wheel rim, a wheel support shaft passes through arotor sleeve, and hub bearings are arranged on the wheel support shaft to support the wheel hub and the whole wheel. The sun gear at one end of the rotor sleeve of the inner rotor hub motor is the power input of the planetary gear reducer, and the planet carrier is the power output. The planetary gear of planetary gear reducer adopts tower gear to realize larger transmission ratio under smaller axial length. The brake system adopts drum brake, the brake drum is connected with the rotor sleeve, and the braking force is amplified through the planetary gear reducer, which can reduce the braking force required by the brake system, and the electric motor can provide the electric braking force when braking. The electric wheel assembly can be used for the non-independent suspension of the commercial vehicle, and the cooling lubrication mode of the integrated cooling lubrication can be adopted to improve the performance.

The invention discloses a carbon fiber suspension for an FSC formula racing car and its bonding process. It includes a column for connecting tires. The inner side of the column is connected to the vehicle frame through a guide mechanism. The guide mechanism includes an upper cross arm, a lower cross arm, and a push rod. , rocker arm and stabilizer bar connecting rods and other rods; the above rods are all composed of carbon fiber tubes and metal connectors at their ends; the bonding process includes: grinding and cleaning the bonding surface of carbon fiber tubes and metal joints; Apply to the bonding surface of one end of the carbon fiber tube, then insert the metal joint, and put the bonding end down, let it rest until the glue solidifies; then bond the metal joint at the other end. The invention greatly reduces the unsprung mass of the racing car, improves the acceleration and fuel economy of the racing car, reduces operating costs and carbon dioxide emissions; improves the stiffness and safety of the suspension system; reduces repair time and cost, and improves The handling stability of the car.

The invention provides a hub type independent wheel bogie, and relates to the bogie used for high speed trains or urban rail transit vehicles. A framework of the hub type independent wheel bogie includes two symmetrically arranged side frames, a central cross beam and two side cross beams; the side frames are of an H-shaped welding structure, the upper portions of the side frames are provided withinstallation bases with air springs, and the end portions of the side frames are provided with installation bases used for installing braking callipers and installation bases with transverse oil-pressure shock absorbers; the central cross beams and the two side cross beams all adopt seamless steel tube structures; the two end portions of each side cross beam stretch out of the corresponding sideframe and used for installing a shaft box body; independent wheel sets are hung on the side frames of the framework through the shaft box body; the braking callipers are installed on the installationbases of the braking callipers on the end portions of the side frames of the framework; a sensor is installed on the lower portion of a vehicle body and located above the independent wheel sets. Air springs are installed on the installation bases of the air springs of the upper portions of the side frames of the framework; the transverse oil-pressure shock absorbers are installed on the installation bases of the transverse oil-pressure shock absorbers on the end portions of the side frames of the framework. The wheel bogie has the advantages that the structure is novel, processing is simple, the wheeltrack friction is small, the curve passing performance is good, and operation is smooth, steady, efficient and safe.

Disclosed is an elastic hanging device for a journal sticking installation motor. The elastic hanging device comprises a motor end connection ring connected with the output end of a journal sticking motor rotor, an axle end connection ring connected with an axle, and elastic elements. The peripheral walls of the motor end connection ring and the axle end connection ring are provided with bosses distributed in a staggered mode at intervals. The elastic elements are fixed to the peripheries of the bosses in a coating mode and are provided with wedge-shaped blocks inserted into the gaps between the adjacent bosses. According to the elastic hanging device, the motor end connection ring is connected with the output end of the journal sticking motor rotor, the axle end connection ring is connected with the axle, the motor end connection ring and the axle end connection ring are connected through the elastic elements, the wedge-shaped rubber blocks are inserted into the gaps of the bosses and have good torque transmission, flexibility and vibration damping performance, the shifting ability is high, and power is transmitted to the axle by means of the wedge-shaped rubber blocks. Through the elastic hanging device, transmission is transmitted to the axle from the motor, a complex gear speed change mechanism is omitted in the middle, a large amount of structure space is saved, and unsprung mass is reduced.