69results about How to "Improve roll resistance" patented technology

The invention discloses a suspension device in front of a vehicle driving cab, relating to the technical field of vehicle shock absorption. The suspension device comprises a transverse stabilizer bar (10) and a first suspension device, wherein the first suspension device is arranged at the end part of the transverse stabilizer bar (10) and comprises an upper bracket (1), a shock absorber (5), an overturning arm (12) and an overturning seat (6). The suspension device in front of the vehicle driving cab is characterized in that the overturning arm (12) is located at one side of the transverse stabilizer bar (10), and the other end of the overturning arm (12) is fixedly connected with one end of the transverse stabilizer bar (10); the upper end of the shock absorber (5) is connected with the upper bracket (1), and the lower end of the shock absorber (5) is connected with the transverse stabilizer bar (10); the bottom of the upper bracket (1) is connected with the overturning arm (12); and the end part of the transverse stabilizer bar (10) is supported by the overturning seat (6). The invention also discloses a heavy vehicle with the suspension device in front of the vehicle driving cab.

A new method for designing a tire comprises the steps of laying up a tire having a stiff lower sidewall portion (18b) that has a high modulus apex (17) and a high turn-up (16a) and a concave shape, a flexible upper sidewall portion (18a) that is decoupled from the tread (22). The tread (22) is supported by a wedge (21) and extended belts (20) to substantially eliminate lateral curvature. The tire of the invention also has a rhom that comprises 60% of the section height (SH) of the tire and a shoulder radius that defines a convex shape in upper sidewall portion (18a).

Provided is a pneumatic tire which is improved in a rolling resistance and a ride comfort in normal running without damaging a run flat durability.It is a pneumatic tire provided with a bead core, a carcass layer, a tread rubber layer, an inner liner, a side reinforcing layer and a bead filler, characterized by using a rubber composition (a) which contains (A) a rubber component and (B) a filler and which has a dynamic storage modulus (E′) of 10 MPa or less at a dynamic strain of 1% and 25° C. and a Σ value of 5.0 or less in a loss tangent tan δ at 28 to 150° C. in the physical properties of the vulcanized rubber.

The invention relates to a single-axle bogie of a straddled-type single-rail vehicle with rotating arm type swing bolsters. The single-axle bogie of the straddled-type single-rail vehicle with the rotating arm type swing bolsters comprises a pair of traveling wheels, two pairs of guiding wheels, a pair of stabilizing wheels and a framework for mounting the traveling wheels, the guiding wheels and the stabilizing wheels; wherein the framework is 'square'-shaped and comprises side beams and cross beams; two pairs of swing bolsters are symmetrically arranged above the cross beams of the framework in the transverse direction; the swing bolsters have rotating arm type structures; the inner ends of the swing bolsters are connected with the cross beams of the framework through rotating joints and rotate in the side rolling direction; and an air spring is arranged between the outer end of each swing bolster and the frame in the vertical direction. Compared with the prior art, the single-axle bogie of the straddled-type single-rail vehicle with the rotating arm type swing bolsters has the characteristics that vertical buffering is realized by the rotating arm type swing bolsters and the air springs, and the vertical stability is good; transverse buffering is realized by a boom, and the transverse stability is good; by the boom, deflection between a vehicle body and the bogie in the curve is adapted, and the curved passing ability is good; by the rotating arm type swing bolsters and side rolling resisting springs, side rolling resisting rigidity is provided, and the anti-roll ability of the vehicle body is improved; and the height of a floor surface of a passenger room can be greatly reduced.

The invention discloses a layered control vehicle anti- rollover method and a multi-axle distributive driving vehicle. A layered control structure is adopted; an upper-layer controller performs combined control on a driving lateral inclination moment and differentiated braking based on a slip-form variable-structure method; a lateral inclination angle is selected as a main reference index for anti-rollover control; difference between an ideal lateral inclination angle and a real lateral inclination angle and difference between an ideal horizontal swinging angle and a real horizontal swinging angle are adopted as inputs; the driving lateral inclination moment and a differentiated braking rotation torque value are output; a middle-layer controller realizes reasonable distribution of the driving lateral inclination moment among each hanging rack execution mechanisms based on an effective set method; finally, a lower-layer controller performs driving anti-slipping control special for a wheel slipping condition which can be caused by middle-layer control; and negative influence to wheel longitudinal stress caused by vehicle force change is eliminated. By adopting the layered control structure, advantages of two anti-rollover methods can be fully exerted; and meanwhile, the driving stability of the vehicle can be further improved by combining with vehicle anti-slipping control.

The invention discloses a two-manner switchable active control suspension. The two manners include the first manner, namely, an active suspension manner in which suspension actuator hydraulic cylinders are independently controlled, and the second manner, namely, an active interconnected suspension manner in which a left hydraulic cylinder and a right hydraulic cylinder are controlled in a diagonal interconnected manner. Diagonal connection oil ways of coaxial actuator hydraulic cylinder cavities can be controlled to be opened and closed through a manner switching valve. The two-manner switchable active control suspension can be switched between the first manner and the second manner. When the lateral acceleration borne by an automobile is lower than a threshold value, the manner switching valve is closed, the oil ways through which the cavities of the left hydraulic cylinder and the right hydraulic cylinder are connected in the diagonal manner are cut off, electronic control hydraulic servo valves independently work at the same time and independently control operation force output, and the two-manner switchable active control suspension enters the active suspension control manner so that comfort can be improved; when the lateral acceleration reaches the threshold value, the manner switching valve is opened, the upper cavities and the lower cavities of the left hydraulic cylinder and the right hydraulic cylinder are interconnected in a crossed manner, and the two-manner switchable active control suspension enters the active interconnected suspension manner. The coaxial suspension can work through the electronic control hydraulic servo valve on only one side, and therefore the anti-roll performance is improved.

A power bogie adopting traditional wheel sets for a 100% low-floor light rail vehicle comprises a framework device, wheel set assemblies, first-series springs, second-series springs, second-series vertical oscillating dampers, second-series transverse oscillating dampers, second-series transverse buffers, single traction rods, side rolling preventing torsion rods, a flexible suspension longitudinal driving device, a hydraulic brake unit and a magnetic rail brake and is characterized in that the wheel set assemblies adopt wheel shaft type structures, journal boxes are built in, the wheels are elastic wheels in a diameter Phi of 500-580mm, and two sets of side rolling preventing torsion rods are mounted on the outer side of a cross beam. According to the bogie, the wheel set assemblies adopt the wheel shaft type structures, the journal boxes are built in, and the wheels are the elastic wheels in the diameter of 500-580mm, so that the restoring problem of wheel sets during linear running and the guide problem of the wheels during curvy running are solved; the two sets of side rolling preventing torsion rods are mounted on the outer side of the cross beam, and the side rolling preventing performance of the vehicle is improved. The 100% low-floor requirement of the vehicle body is successfully realized by the bogie, and meanwhile, the structure of the bogie is simplified. All the parts are mature products, and the modular design of the bogie is facilitated.

The invention relates to the technical field of railway vehicles, and provides a bogie framework of a railway vehicle and a bogie. The bogie framework of the railway vehicle comprises a first end beam, a second end beam and a box beam. The box beam comprises a first-level gear case and a second-level gear case. The first-level gear case is used for connecting a traction motor and the second-levelgear case. The second-level gear case is arranged between the first-level gear case and the first end beam and between the first-level gear case and the second end beam. The gear cases are integratedon the bogie framework, the bogie dismounting and mounting efficiency can be improved, the height from a railway vehicle floor to the ground is reduced, the distance between the railway vehicle floorof the railway vehicle and the ground is reduced, and meanwhile the lateral rolling resisting capability of the railway vehicle is improved. Furthermore, due to the integrated design of the gear casesand the bogie framework and gear transmission inner arrangement, the height of the bogie can be better reduced, the requirements of suburb elevated, urban tunnels and A type subway tunnel shields aremet, and the engineering manufacturing cost is greatly reduced.

The invention discloses a vehicle double withbone arm type independent suspension system which comprises a front suspension assembly and a rear suspension assembly, wherein the front suspension assembly is provided with a front horizontal swinging arm assembly, the front horizontal swinging arm assembly comprises a front upper horizontal swinging arm and a front lower horizontal swinging arm, the rear suspension assembly is provided with a rear horizontal swinging arm assembly, and the rear horizontal swinging arm assembly comprises a rear upper horizontal swinging arm and a rear lower horizontal swinging arm; in the invention, the projection dimensions of the front upper horizontal swing arm and the rear upper horizontal swing arm in the transversal horizontal level respectively smaller than the projection dimensions of the front lower horizontal swing arm and the rear lower horizontal swing arm in the transversal level, the running stability of the automobile is improved, the inclinations and shakes of the vehicle body are reduced, and the lateral stiffness is high; the camber angle of a wheel can be changed automatically during the up-and-down motion, the tread changes can be reduced, the side slippage of the wheel can be avoided, and the abrasion of a tire is reduced; the vehicle double withbone arm type independent suspension system is self adaptive to road surfaces, the ground contact area of a tire is large, the grounding performance is good, and the vehicle is guaranteed to have an excellent running stability; and the left and the right wheels can jump independently and are prevented from mutual influences, the inclinations and shakes of the vehicle body are reduced, and the riding comfort is enhanced.

The invention relates to an X-shaped arm for a vehicle air suspension, and further relates to an air suspension assembly adopting the X-shaped arm. The X-shaped arm is characterized by comprising a body; the body is integrally formed with a pair of axle connecting arms and a pair of cross beam connecting arms, wherein the axle connecting arms are extended outwards from the body and are symmetrically arranged, the cross beam connecting arms are extended outwards from the body and are symmetrically arranged, and the two axle connecting arms and the two cross beam connecting arms are oppositely arranged relative to the symmetry axes to form an X or H shape; and the cross sections of the cross beam connecting arms and the cross sections of the axle connecting arms are gradually reduced in theextending direction from the body to the outside. The X-shaped arm has the advantages that the stress effect is good, the structure is stable, the structural strength and the stability of the X-shapedarm can be greatly improved after the axle connecting arms and the cross beam connecting arms are subjected to optimized design in molded lines and cross sections, and weight reduction optimization can be carried out on the premise that the structural strength and the stability are greatly improved.

The invention relates to the technical field of railway vehicles, and provides a railway vehicle bogie frame, a railway vehicle bogie and a railway vehicle. The railway vehicle bogie frame comprises afirst end beam, a second end beam and a box beam arranged between the first end beam and the second end beam. The box beam comprises a motor box and gear cases. The motor box is connected with the first end beam and the second end beam through the gear cases. According to the bogie frame, the motor box and the gear cases are integrated on the bogie frame, accordingly, a motor installing base, a gear case hanging rod base and other structures on an original bogie frame are eliminated, and the bogie dismounting and mounting efficiency is improved. In addition, additional arrangement of the motor box and the gear cases on the bogie frame base is not needed, accordingly, the height between a railway vehicle floor and the ground can be reduced, the distance between the railway vehicle floor ofthe railway vehicle and the ground is reduced, and the lateral rolling resisting capability of the railway vehicle is improved.

The invention provides a method for producing a modified conjugated diene (co)polymer, the method including comprising: a modification reaction step including causing an organic silane compound to react with a conjugated diene (co)polymer having an active site at the active site, the organic silane compound having a characteristic group for forming a silanol group through hydrolysis and, in the vicinity of the characteristic group, (i) a functional group which binds the organic silane compound to the conjugated diene (co)polymer via addition to or substitution at the active site and which promotes reaction between the silanol group and a reinforcing filler after the addition or substitution reaction, or (ii) a functional group which promotes reaction between the silanol group and a reinforcing filler, and a hydrolyzation step performed after the modification reaction step; a modified conjugated diene (co)polymer having, at a molecular end of the conjugated diene (co)polymer, a silanol group, and a functional group in the vicinity of the silanol group, the functional group accelerating reaction between the silanol group and the reinforcing filler; a rubber composition containing the (co)polymer and carbon black having specific characteristics; and a tire formed from the rubber composition.

The present technology provides a rubber composition containing: (A) a diene rubber, (B) from 5 to 200 parts by mass of silica per 100 parts by mass of the diene rubber, (C) from 1 to 20 mass % of a sulfur-containing silane coupling agent relative to the amount of the silica, (D) for example, from 1 to 20 mass % of n-octyltriethoxysilane relative to the amount of the silica; and (E) from 1 to 20 mass % of a glycerol monofatty acid ester derived from a fatty acid having from 8 to 24 carbons relative to the mass of the silica (B).

The invention discloses an all-wheel 360-degree steering unmanned platform vehicle. The unmanned platform vehicle is composed of a chassis, a suspension mechanism, an interconnection mechanism, a steering mechanism and a driving mechanism. The suspension mechanism is composed of an upper pull rod, a lower pull rod and a shock absorber, the interconnection mechanism is composed of a left interconnection guide rod, a right interconnection guide rod, a left triangular rod, a right triangular rod and an interconnection spring, the steering mechanism is composed of a support, a steering motor, a steering shaft, a steering arm, a steering knuckle and the like, and the driving mechanism is composed of a hub, a hub motor, a brake disc and a brake caliper. The driving mechanism is connected with the steering mechanism and connected with the chassis through the suspension mechanism. The front steering mechanism and the rear steering mechanism in the advancing direction of the unmanned platform vehicle are interconnected through an interconnection mechanism. Each wheel of the unmanned platform vehicle can be independently driven and braked, 360-degree steering is achieved through a steering motor, and driving, braking and steering are all linearly controlled; meanwhile, suspension interconnection can be achieved, high maneuvering performance and driving stability are achieved, and universality is high.

The invention provides a disconnectable automobile semi-active transverse stabilizer bar system. The disconnectable automobile semi-active transverse stabilizer bar system comprises a stabilizer bar,an electromagnetic clutch, a magneto-rheological damper and a controller. The stabilizer bar comprises a left half bar and a right half bar, one end of the left half bar is installed on a vehicle suspension lower swing arm through the magneto-rheological damper, one end of the right half rod is mounted on the vehicle suspension lower swing arm, the controller controls the electromagnetic clutch toconnect or disconnect the left half rod and the right half rod, and the controller controls the magneto-rheological damper to generate damping force according to the running parameters of the vehicle. One end of the right half rod is mounted on the vehicle suspension lower swing arm through a vertical connecting rod. According to the invention, three different working modes of no stabilizer bar,passive stabilizer bar and semi-active stabilizer bar can be realized. Under the condition that a direct power source is not needed, the torque of the semi-active stabilizer bar can be changed in realtime along with side tipping of the vehicle body through current change, and the stability and smoothness of the vehicle body are improved.

The invention provides a semi-independent suspension with inclined leaf springs and belongs to the field of automobile engineering. The suspension comprises a frame, a half axle, and two semi-independent suspension devices on the two sides of the frame; the suspension device on each side comprises four inclined leaf springs; the first and fourth inclined leaf springs are symmetrical about the half axle, while the second and third inclined leaf springs are symmetrical about the half axle; the line of intersection of longitudinal symmetrical central planes determined by the first and fourth inclined leaf springs is parallel to or collinear to the line of intersection of longitudinal symmetrical central planes determined by the second and third inclined leaf springs. According to the semi-independent suspension, the wheels on the left and right two sides are directly connected without a hard shaft, and therefore, the semi-independent suspension is better than a traditional non-independent leaf spring suspension in manipulation stability and driving smoothness. Meanwhile, four leaf springs connected in parallel are capable of effectively bearing and alleviating impact to achieve better bearing capability and reliability; in addition, the distance between the bearing centers on the two sides and the steering range of the wheels are increased, and therefore, the whole vehicle is enabled to be better in low-speed flexibility.

The invention relates to an anticorrosive, abrasion-proof and rolling-resistant ground for a garbage discharging hall, and a construction method of the anticorrosive, abrasion-proof and rolling-resistant ground. The ground comprises a reinforced concrete structure layer (5) at a bottom, wherein an emery abrasion-proof layer (4), a middle cement-based crystallization layer (3), a carbamide resin-based layer (2) and a carbamide resin surface layer (1) are also arranged on the reinforced concrete structure layer (5) successively. The construction method comprises the following five steps in a layered construction manner from bottom to top: performing pouring, levelling, jolt ramming, calendering and forming at a time on the reinforced concrete structure layer (5); before prehardening, spreading dry nonmetal emery to form the emery abrasion-proof layer (4); performing brushing or roll painting with cement-based crystallization permeable crystallization paint to form the middle cement-based crystallization layer (3); constructing the carbamide resin anticorrosive-based layer (2); finally, using a spraying method for constructing the carbamide resin surface layer (1). The ground structure and the construction method has the advantages that high corrosion resistance, abrasion resistance and rolling resistance are achieved, the durability of floor grounds is improved, and the maintenance cost is low.

The invention discloses a photoelectric vehicle height sensor, comprising a connection cable, a case, a shaft, a photoelectric coupling element and a blanking disc, wherein the bottom of the case is provided with the connection cable, the connection cable is connected with the photoelectric coupling element arranged inside the case, the shaft is arranged on the case and is sheathed into the photoelectric coupling element, a disc and the blanking disc are arranged on the shaft, one end of the blanking disc is arranged in a groove of the photoelectric coupling element, the disc is arranged in the blanking disc, and a slot is arranged at the edge of the disc. The photoelectric vehicle height sensor disclosed by the invention has the characteristics that vehicle height can be regulated at any time, the vehicle height is maintained to be constant and not to vary along with the change of loads, wheel suspension stiffness can be adjusted when an automobile starts, steers and brakes and the loads of front, rear, left and right wheels vary correspondingly, the anti-pitching capability and the anti-skewing capability of the automobile are improved, and the vehicle height can be maintained to be constant basically.

The invention discloses an air suspension for a trailer capable of improving the anti-roll capability. The air suspension is characterized in that: both sides of a vehicle frame are provided with two guide arm assemblies (3); a reinforcing beam(16) is welded between a left bracket assembly (18) and a right bracket assembly (14); the upper ends of a left reinforcing plate (17) and a right reinforcing plate (15) are welded on a beam of the vehicle frame; the two guide arm assemblies (3) are arranged on inner openings of the left bracket assembly (18) and the right bracket assembly (14) respectively; the left bracket assembly (18) and the right bracket assembly (14) are in bolt connection with the two guide arm assemblies (3) by an eccentric sleeve (1); and the upper ends of both sides of a cap-shaped beam are provided with two gas bag assemblies (9) to bear the vertical load, and the lower ends are fixedly connected with the back ends of the two guide arm assemblies (3) arranged on both sides. The air suspension has the advantages of having good ride comfort and stable operation, and overcoming the defect of poor anti-roll capability existing in the air suspension of the common semi-trailer.

This invention relates to novel free-flowing filler compositions containing sulfur-containing silane coupling agents, and to a rubber containing the filler composition.

The invention discloses a dragging-resistant grinding-resistant mobile cable. The dragging-resistant grinding-resistant mobile cable comprises a cable core, a cable core wrapped belt layer, an outermost layer wrapped outer protective sleeve, wherein the cable core consists of a plurality of insulated cable cores and a saddle-shaped filling strip for isolating the insulated cable cores; each insulated scale core consists of a conductor and an insulated layer wrapped outside the conductor. The dragging-resistant grinding-resistant mobile cable is high in softness, high in bending resistance, high in tensile performance and dragging resistance, and can be completely suitable for characteristics of being frequent to move, easy to grind, and the like.

The invention relates to a honeycomb-spraying paper-plastic composite book cover. The book cover contains a piece of glossy paper and a plastic film; the honeycomb-spraying paper-plastic composite book cover is formed by combining the piece of glossy paper, the plastic film and a sprayed network, wherein a honeycomb network is sprayed on the back of the glossy paper; the honeycomb network is formed by solidified resin adhesive or solidified clear lacquer; and honeycomb grooves are formed on the back of the honeycomb network and the back of the glossy paper; and the front of the glossy paper is combined with the plastic film. The preparation method of the honeycomb-spraying paper-plastic composite book cover comprises the following steps: printing the glossy paper, spraying the honeycomb network, solidifying the honeycomb network, and combining paper and plastic. The resin or paint honeycomb network is sprayed and solidified on the back of the glossy paper of the honeycomb-spraying paper-plastic composite book cover; and as the solidified resin or paint honeycomb network has good strength, the curling resistance of the book cover is increased.

The invention discloses a hanger bracket assembly, a hanger bracket with the hanger bracket assembly and a vehicle with the hanger bracket. The hanger bracket assembly comprises a balance beam, a supporting beam and a bag type air bag. The supporting beam is arranged on the balance beam and can rotate in a pivoted mode relative to the balance beam. The bag type air bag is arranged on the supporting beam. The hanger bracket assembly can greatly reduce impact force received by a vehicle frame, so that the comfort of the vehicle can be greatly improved, and the service life of the vehicle can be prolonged.

The present invention provides a tire having a tire tread comprising a cap tread and a base tread, use of which makes it possible to prepare for future decrease of petroleum supply, and further, can improve rolling resistance, steering stability and rubber strength in favorable balance, as compared with a tire prepared by using a rubber composition for a tread or a tire prepared by using a rubber composition for a base tread, which mainly comprises materials derived from petroleum resources. The tire has a tire tread comprising a cap tread and a base tread, the base tread being prepared by using a rubber composition for a base tread comprising 25 to 80 parts by weight of silica on the basis of 100 parts by weight of a rubber component comprising a natural rubber, and a thickness of the base tread being 17 to 50% of the overall thickness of the tire tread.

The invention relates to an X-shaped arm for a vehicle air suspension, and further relates to an air suspension assembly adopting the X-shaped arm. The X-shaped arm for a vehicle air suspension is characterized by comprising a body; a pair of axle connecting arms which extend outwards from the body and are symmetrically arranged and a pair of cross beam connecting arms which extend outwards from the body and are symmetrically arranged are integrally formed on the body, and the two axle connecting arms and the two cross beam connecting arms are arranged back to back on the symmetry axis to forman X shape or an H shape; and in the outward extending direction of the body, the cross sections of the cross beam connecting arm and the axle connecting arm are gradually reduced. The X-shaped arm has the advantages that the stress effect is good, and the structure is stable; and after the molded lines and the cross sections of the axle connecting arm and the cross beam connecting arm are optimally designed, the structural strength and the stability can be greatly improved, and weight reduction optimization can be carried out on the premise.

An automotive double-front-axle structure adopting non-independent oblique leaf spring suspensions comprises a frame, a first front axle, a second front axle and a steering system, wherein each of the two front axles comprises two oblique leaf spring suspensions, an integral axle and a trapezoid steering mechanism; each oblique leaf spring suspension comprises four oblique leaf springs, the first oblique leaf spring and the fourth oblique leaf spring are symmetrical about the axle, and the second oblique leaf spring and the third oblique leaf spring are symmetrical about the axle, and an intersecting line of longitudinal symmetric center surfaces determined by the first oblique leaf spring and the fourth oblique leaf spring is parallel to or collinear with an intersecting line of longitudinal symmetric center surfaces determined by the second oblique leaf spring and the third oblique leaf spring. Compared with a conventional double-front-axle structure adopting non-independent longitudinal leaf spring suspensions, the automobile double-front-axle structure has high bearing capability, the positional parameter variable quantity of wheels can be reduced, the bearing center distance of the leaf springs is increased, and the abnormal wear of the tires is reduced; the wheel steering range is increased, and a whole automobile has better low-speed flexibility.

The embodiment of the invention provides a framework, a bogie and a rail vehicle; the framework comprises two side beams, at least one cross beam and two extension beams, and the two side beams are oppositely arranged; the cross beam is connected with the two side beams; and the two extending beams are arranged on the sides, deviating from the cross beam, of the two side beams correspondingly, the two extending beams are coaxially arranged, secondary suspension mounting bases are arranged on the extending beams, and the secondary suspension mounting bases are used for being connected with secondary suspension. According to the embodiment of the invention, the extension beams are arranged on the sides, deviating from the cross beams, of the side beams, and the secondary suspension mounting bases are arranged on the extension beams, so that the span between the two secondary suspensions on the bogie is increased, and the side rolling resistance of the bogie is improved.

The four-wheel motorcycle consists of two parts of dragging head and body hinged via steering gimbal. The front part of the dragging head is one high-strength collision-proof stereo trussframed struture with steering shaft, steering wheel and bevel gear in the upper part as well as clutch, brake and throttle pedal in the lower part. The bevel rack meshes with the bevel gear is mounted on the cantilever of the dragging head. The driver applies steering torque to the steering wheel for turning. The present invention may be used to replace available two-wheeled and three-wheeled motorcycles as one countryside transportation tool.

The invention relates to the technical field of cable processing, in particular to a wear-resistant anti-rolling cable material. When the wear-resistant anti-rolling cable material is used in a special industry, the wear resistance and the anti-rolling ability of the cable can be improved, damage of a cable protecting cover or a core skin is relieved, the service life of the cable is prolonged, and accidents such as disconnection or short-circuit are reduced; and the wear-resistant anti-rolling cable material is prepared by mixing and then extruding polyvinyl chloride resin, dioctyl phthalate,a stabilizer, a high-temperature plasticization agent, wear-resistant powder, nano emery grit, antimonous oxide, nano active light calcium carbonate, polyethylene, a colorant, a lubricant and an antioxidant.

The invention discloses a non-independent suspension frame comprising two obliquely-arranged plate spring assemblies which are symmetrically arranged on the two sides of a vehicle frame. Each obliquely-arranged plate spring assembly comprises four obliquely-arranged plate springs, wherein the two obliquely-arranged plate springs are located on the tops of the other two obliquely-arranged plate springs; one ends of the obliquely-arranged plate springs are connected with the vehicle frame; the other ends of the obliquely-arranged plate springs are connected with wheel hub connecting members; every two corresponding obliquely-arranged plate springs located on the tops and the vehicle frame form a triangular structure in an enclosed mode; and the other two corresponding obliquely-arranged plate springs located at the bottoms and the vehicle frame form a triangular structure in an enclosed mode. The non-independent suspension frame further comprises spring shock absorbers, and the two ends of the spring shock absorbers are connected with the vehicle frame and the wheel hub connecting members correspondingly and located on the upper portions of the obliquely-arranged plate spring assemblies. According to the non-independent suspension frame, application of the obliquely-arranged plate springs and the spring shock absorbers is combined, the carrying capacity and the lateral-tilting resistance capacity of a vehicle can be improved, wheel positioning parameters are improved, the steering angle is increased, the bearing center distance is increased, tire internally-tilting is avoided, and abnormal friction of tires is reduced.