37results about "Rigid suspensions" patented technology

The utility model relates to the field of agricultural equipment, and discloses an all-terrain agricultural flat car, which comprises a loading platform and a placing frame, the rear end of the middle part of the inner bottom surface of the placing frame is fixedly connected with a fixed block, and the inner wall of the fixed block is rotatably connected with a cylindrical rod. According to the agricultural flat car, the sleeve is installed in the middle of the frame, the loading platform of the agricultural flat car can be turned over up and down through the unique sleeve structure, meanwhile, the cylindrical rods and the fixing blocks are rotationally connected, the tires on each side can be turned over independently, and therefore the placing frames on the two sides can swing independently and can be turned over independently no matter in any terrain. The four wheels can land at the same time, the situation that three tires land while one tire is suspended on a rugged route is avoided, and in order to better prevent the situation that the tires on the single side move due to long-time walking, the two sides of the frame are each provided with a limiting device composed of a limiting steel ring and a steel sheet. And the moving distance of the tire is limited, so that the vehicle body is well protected.

The invention provides a shear thickening damper applied to an automobile suspension and a control method of the shear thickening damper, and relates to the technical field of suspension dampers, the shear thickening damper comprises a suspension mechanism, the suspension mechanism comprises a rigid suspension, and a steering adjuster is arranged on the rigid suspension. Through collaborative design of the suspension mechanism, the damping mechanism and the protection mechanism, the comprehensive performance of the automobile suspension system is remarkably improved, the steering adjustor and the reinforcing arc frame dynamically adapt to different steering working conditions and road surface loads, the supporting stability is ensured, the power transmission efficiency is optimized through efficient meshing transmission of the crown gear rod and the gear rotating disc, and the service life of the automobile suspension system is prolonged. The tire grounding stability is enhanced through the adjustable gap design of the connecting ball rod, the damping coefficient and the pre-tightening force of the damping mechanism are adjusted in a self-adaptive mode through multi-stage buffering in combination with real-time sensor feedback, road surface impact is effectively absorbed, vibration transmission is reduced, and the protection mechanism is made of intelligent materials and a collapsible framework structure; and during collision, energy is absorbed according to a preset mode in a deformation grading manner, so that the passive safety is greatly improved.

A wheel suspension for a vehicle includes: - a guide tube (10) that can be mounted on or is mounted on a vehicle chassis in an operating position or is permanently connected to or belonging to a vehicle chassis and assumes the operating position, which in its operating position has a guide tube axis extending vertically or inclined relative to a vertical direction according to a nominal guide tube angle with respect to a vehicle standing on a horizontal flat surface; - a wheel fork (3) having two fork legs (4), which is mounted on the vehicle chassis at least at one bearing area at least by means of the guide tube (10) in its operating position; - Bearing devices at free end areas of the fork legs for the rotary bearing of a wheel (2) between them. It is proposed that the wheel fork (3) is or can be mounted in a relatively movable manner radially outside on the guide tube (10) by means of its bearing area (5, 6).

The invention discloses an automatic guided vehicle and a driving wheel module thereof. The automatic guided vehicle comprises a vehicle frame and two driving wheel modules pivoted to the two opposite sides of the vehicle frame. Each driving wheel module comprises a first balance beam, a driving wheel pivoted to the rear end of the first balance beam, and an auxiliary wheel pivoted to the front end of the first balance beam. The first balance beam is provided with a first pivoting part pivoted to the frame, and the first pivoting part is positioned between the rear end part and the front end part; and the first balance beam can rotate by taking the first pivoting part as a fulcrum, so as to synchronously move the driving wheel and the auxiliary wheel. The driving wheels and the auxiliary wheels of the two driving wheel modules can be used for keeping walking in contact with the ground, and the frame is stressed through the two first pivot joint parts. Therefore, the unmanned carrier vehicle can enable the driving wheel and the auxiliary wheel to stably walk on the ground without arranging a spring.

The invention relates to a method and an arrangement for actively damping a vehicle (1) in motion, the vehicle comprising a dump box (10), which may be actuated around a pivot point (PP) between a flat transport position and a tilted dumping position by mean of at least one hydraulic cylinder (11). A sensor (15) is arranged to monitor the condition of the road on which the vehicle (1) is being driven and a control unit (CU) is configured to receive information from the sensor (15) and to control the at least one hydraulic cylinder (11) of the dump box (10) in response thereto, wherein in response to a road irregularity (20) being detected by the sensor (15), the control unit (CU) being configured to predict whether the road irregularity (20) would cause the vehicle to oscillate when passing over the road irregularity (20) and to control the at least one hydraulic cylinder (11) of the dump box (10) to tilt the dump box (10) to dampen the effect of the road irregularity (20) and attenuate the oscillation. The invention also relates to a vehicle comprising such an arrangement.

The present invention relates to a mobile device for transporting a heavy object, the device comprising: a chassis including: a base (11) extending along a longitudinal axis defining a rear region, a front region and a central region between the rear and front regions, and a pair of feet fixed to the base (11), each foot being mounted on a respective lateral edge of the base (11) at the rear region, at least six casters (13, 22, 23) arranged in triplets, the casters of each triplet being aligned along a respective longitudinal edge of the base (11), a first caster (13) of each triplet being mounted at the free end of a respective foot, remarkable in that the mobile device further comprises an oscillating member pivotally mounted on the chassis about a pivot axis perpendicular to the longitudinal axis of the base (11),The oscillating member includes first and second lateral arms (21) each mounted on a respective lateral edge of the base (11), and second and third rollers (22, 23) of each triplet being mounted aligned on a respective lateral arm (21) such that the second roller (22) extends at the central region and the third roller (23) extends at the front region. Figure to be published with the abbreviation: Fig. 1,

To provide a travelling body which has both of high speed travelling performance, a high turning performance, and traversing performance on a bad road.SOLUTION: In a travelling body 1A, at least a front wheel 11, a middle wheel 12 and a rear wheel 13 are provided one by one on the left and right. The travelling body comprises: a right coupling arm 20R which pivotally supports each of right front wheel 11R and middle wheel 12R and couples these wheels; a left coupling arm 20L which pivotally supports each of left front wheel 11L and middle wheel 12L and couples these wheels; a housing part 31 which is provided between the right coupling arm 20R and the left coupling arm 20L, and pivotally supports an intermediate part between the front wheels 11R, 11L and the middle wheels 12R, 12L of each of the right coupling arm 20R and the left coupling arm 20L; a rear wheel connection mechanism 33 which couples a right rear wheel 13R and a left rear wheel 13L; and a vehicle body shaft 32 which couples the housing part 31 and the rear wheel connection mechanism 33 in a cross direction. The housing part 31 is so provided as to be rotatable left and right around a connection part 35 to the vehicle body shaft 32.SELECTED DRAWING: Figure 1

The present disclosure relates to an assembly for a steering system of a vehicle, the assembly comprising an axle part having a coupling recess, and a steering cylinder having a coupling projection. The coupling projection is received in the coupling recess and an interference fit is formed between the coupling projection and the coupling recess.

An aerial work vehicle includes: a self propelled vehicle base; a telescoping boom pivotally coupled to an upper surface of said vehicle base; a plurality of support arms pivotable outwardly from said base in a same plane as said base, each of the plurality of support arms comprising: a hinge assembly coupled to a respective corner of said base, a portion of said base forming a portion of said hinge assembly; a first end of a support arm body coupled to and forming a portion of said hinge assembly; and a wheel assembly coupled to a second end of said support arm body.

The invention relates to driving stability of left and right wheels during turning of a motor vehicle. Comprising a wheel suspension frame, a frame and a compensation frame, the compensation frame comprises a bottom-layer frame and an upper-layer frame, the bottom-layer frame and the upper-layer frame are of an integrated structure, and compensation frame connecting plates are fixed to the rear side faces of the bottom-layer frame and the upper-layer frame; a connecting hole is formed in the compensation frame connecting plate, a bearing is fixed in the connecting hole, and the compensation frame connecting plate is fixedly connected with a frame through a bolt; a left connecting plate and a right connecting plate are respectively arranged on the bottom layer frame and are fixedly connected with the wheel suspension frame; a left lug plate is arranged on the upper-layer frame and fixedly connected with a left spring of a wheel suspension frame, and a right lug plate is arranged on the upper-layer frame and fixedly connected with a right spring of a vehicle suspension frame. According to the technical scheme, the problem that the front wheel on one side tilts when the vehicle moves at the rear center of gravity at a small radius at a high speed can be thoroughly solved. Compared with the prior art, the structure is simple, the effect is good, the adaptability to uneven road surfaces is better, the comfort degree of the suspension is easy to adjust, and the cost-effectiveness ratio is high.

The utility model discloses a beach buggy rear rocker arm structure facilitating later maintenance, and relates to the technical field of beach buggy rear rocker arms, the beach buggy rear rocker arm structure comprises a connecting block, a moving groove is formed in the side face of the connecting block, two moving blocks are arranged in the moving groove in a sliding mode, and L-shaped grooves are formed in the opposite sides of the two moving blocks; a fixing piece is slidably arranged in the L-shaped groove, and a connecting frame is fixedly arranged on the side face of the moving block. The two L-shaped strips move forwards, the compression springs are compressed, so that the vertical strips of the L-shaped strips move into the L-shaped grooves from the inserting grooves, fixing of the convex blocks and the moving grooves is relieved, then the two connecting frames are driven by the two moving blocks to stretch outwards at the same time according to a tire needing to be replaced, hubs of the tire with the proper size are placed in the two connecting shafts, and the tire is replaced. And secondly, the L-shaped strip is loosened, the L-shaped strip is moved into the insertion groove through the compression spring, and the tires with different widths can be rapidly installed and fixed.

A tension leg platform assembly is provided, comprising a buoyant body and a number of mooring assemblies attached thereto, which extend between the buoyant body and a fixed foundation on the seabed. Each mooring assembly comprises at least one elongate member having an upper end and an opposite lower end. At least one of said upper end and lower end by means of a connector assembly is connected to the buoyant body or the fixed foundation, respectively. Said connector assembly is provided with a first yoke which is connected to the buoyant body or fixed foundation for a rotation around a first axis which extends substantially horizontally at a first level, and a second yoke attached to the elongate member which is mounted in the first yoke for a rotation around a second axis which extends substantially perpendicularly to the first axis at a second level. The second level is further away from the upper end or lower end, respectively, of the elongate member than the first level.

To provide a wheel bearing device that can improve the mechanical properties of the wheel bearing device, such as camber rigidity, by increasing the pitch circle diameter of the outer rolling elements without compromising the maintainability of the vehicle. [Solution] A wheel bearing device 1 comprises an inner member consisting of an outer ring 2, a hub ring 3, and an inner ring 4 fitted to the hub ring 3 on the inner side of the inner raceway surface 3c, an outer ball row 6, and an inner ball row 5, wherein the wheel mounting flange 3b has a tapped hole 3e into which a wheel bolt 3f is inserted from the outer side, the pitch circle diameter of the outer ball row 6 is larger than the pitch circle diameter of the inner ball row 5, and the thickness Ha of the wheel mounting flange 3b forming the tapped hole 3e is 1.02 times or more and less than 1.3 times the nominal diameter R of the wheel bolt 3f to be inserted.

A shield 40 for protecting a vehicle suspension component from impact damage comprises a protective structure 50 configured to be mounted to the suspension component (20,fig.5). The suspension compone

The connecting rod structure comprises an upper longitudinal connecting rod, a lower longitudinal connecting rod and a transverse connecting rod, the upper longitudinal connecting rod and the lower longitudinal connecting rod are used for being arranged on the front portion of a front axle, the upper longitudinal connecting rod is located on the upper portion of the lower longitudinal connecting rod, and the two ends of the upper longitudinal connecting rod and the two ends of the lower longitudinal connecting rod are used for being hinged to a frame and the front axle respectively; two ends of the transverse connecting rod are respectively hinged with a frame and a front axle. The invention further discloses an arrangement method of the mining dump truck frame and the connecting rod structure. The connecting rod structure is arranged between the frame and the front axle, so that the posture of the front axle is stable during driving.

A portal axle arrangement 1 for a motor vehicle includes at least one portal housing 2 and at least one suspension arm 5, 6. The at least one portal housing 2 includes a receiving section 7 for a portal gear and at least one connecting section 8, 9 for the at least one suspension arm 5, 6, in which the at least one connecting section 8, 9 is designed as a support section. A motor vehicle including such a portal axle arrangement is also provided.

Described herein is an apparatus (1), a system, and a method for facilitating movement of an object (B), wherein the apparatus comprises: - a bearing body (3) provided with an engagement means (5); - a wheel (10) operatively connected to the bearing body via an arm (12) that has a first end portion (14) and a second end portion (16), wherein the first end portion (14) of the arm (12) is rotatably connected to the bearing body; and - a driving device (20) that is directly or indirectly operatively connected to the bearing body (3) and a portion of the arm (12) that is at a distance from the first end portion (14) of the arm, wherein the driving device (20) is configured to rotate the arm (12) and the wheel (10) relative to the bearing body between a passive first position and an active second position. The engagement means (5) of the bearing body (3) is in the form of at least one protrusion arranged to be inserted into a forklift pocket arranged at a bottom portion of the object (B).

The invention relates to an in-wheel steering assembly, a wheel, a vehicle and a method for steering a vehicle, wherein the in-wheel steering assembly comprises a chassis interface, an inner hub supported on the chassis interface and defining a wheel axis, and an outer hub rotatable relative to said inner hub about said wheel axis, wherein the inner hub is pivotable about a pivot axis, wherein the pivot axis trails the wheel axis over a trail distance, wherein the in-wheel steering assembly further comprises a steering lever that is corotatable with the inner hub and extends inside the inner hub in a lever direction perpendicular to and away from the pivot axis and towards the wheel axis, wherein the in-wheel steering assembly is provided with a steering actuator for engaging the steering lever inside the inner hub and for imparting a steering moment on said steering lever about the pivot axis relative to the chassis interface.

Provided is a bearing device for a vehicle wheel (1) capable of increasing a pitch circle diameter of a rolling element on an outer side to improve mechanical characteristics such as camber rigidity of the bearing device for a vehicle wheel (1) without impairing maintainability of a vehicle. The bearing device for a vehicle wheel (1) includes an outer ring (2), a hub ring (3), an inner member including an inner ring (4) fitted to the hub ring (3) on an inner side of an inner raceway surface (3c), an outer side ball row (6), and an inner side ball row (5). A wheel mounting flange (3b) includes a tap hole (3e) into which a wheel bolt (3f) is inserted from the outer side. A pitch circle diameter of the outer side ball row (6) is larger than a pitch circle diameter of the inner side ball row (5). A thickness (Ha) of the wheel mounting flange (3b) forming the tap hole (3e) is 1.02 times or more and less than 1.3 times a nominal diameter (R) of the wheel bolt (3f) to be inserted.

An electric drive system including: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, wherein the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly, and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and connected to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis and wherein the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.

Aspects and implementations of the present disclosure relate to performance and safety improvements for autonomous trucking systems, such as mitigation of blind spots in the field of view of a sensing system of an autonomous vehicle, using shielding by other vehicles in adverse weather conditions, and deploying a cooperative expansion of the sensing field of view using external sensing systems.

To provide an unmanned aerial vehicle for an effective perching UAV having a releasable crawler for inspecting or maintaining a structure.SOLUTION: A UAV 100 includes a body, and three or more legs connected to the body and configured to land and perch the UAV on a curved ferromagnetic surface 50. Each leg includes a first portion connected to the body, a second portion including a magnet 120 and configured to magnetically attach and maintain the magnetic attachment of the leg to the ferromagnetic surface during the landing and perching, and a passive articulation joint connecting the first and second portions and configured to passively articulate the second portion with respect to the first portion in response to the second portion approaching the ferromagnetic surface. The UAV further includes a releasable crawler 150 including magnetic wheels, which detach the crawler from the body during the perching and maneuver the crawler on the ferromagnetic surface while magnetically attaching the crawler to the ferromagnetic surface after the detachment.SELECTED DRAWING: Figure 1A

The utility model discloses a golf cart cleat connecting piece which comprises a fixed connecting plate and a connecting shaft, a first cleat plate is fixedly installed at the top of the fixed connecting plate, a second cleat plate is fixedly installed at the bottom of the fixed connecting plate, and second connecting holes are formed in the first cleat plate and the second cleat plate. A connecting reinforcing strip is fixedly mounted on one side of the fixed connecting plate; the fixed connecting plate of the cleat connecting piece can disperse and transmit vibration force generated by jolting to a suspension damping system of the golf cart mounted at the tops of the cleat plate I, the cleat plate II and the side plate, so that the vibration force is dispersed and damped, the dispersed vibration force can be counteracted, the stability of the golf cart is ensured, and the service life of the golf cart is prolonged. Therefore, the stability of the golf cart is kept, impact and vibration from the road surface are effectively absorbed and buffered, the driving stability and comfort are improved, and the cleat connecting piece has enough strength and stability through reasonable design and material selection and can meet the actual use requirement.

A device (9) for adjusting the bumper clearance and / or the spring pre-tightening force in a vehicle suspension, comprising an internally hollow cylindrical body (12); a main flange (14) adapted to be connected to the upper end of the shock absorber rod (18) of the suspended mass of the vehicle; a secondary flange (16) adapted to form the upper seat of the main spring of the vehicle suspension; a main actuator (20) coaxial with the cylindrical body (12) and slidably received inside the cylindrical body (12); a bumper (24) adapted to form a limit stop for the oscillations of the suspended mass of the vehicle by abutting against the shock absorber cylinder of the vehicle suspension; wherein the main actuator assembly (20) and the bumper (24) are configured to be axially crossed by the shock absorber rod (18) and to slide with respect to the shock absorber rod (18).

To provide an electric motor drive assembly that is capable of producing movement of a wheel that has two degrees of freedom.SOLUTION: An electric drive system includes: a rotary motor system including a hub assembly, a first rotating assembly, a second rotating assembly, and a third rotating assembly, where the hub assembly defines a rotational axis about which the first rotating assembly, the second rotating assembly and the third rotating assembly are coaxially aligned and are capable of independent rotational movement independent of each other; a multi-bar linkage mechanism connected to each of the first and third rotating assemblies and to the hub assembly and constraining movement of the hub assembly so that the rotational axis of the hub assembly moves along a defined path that is in a transverse direction relative to the rotational axis, where the multi-bar linkage mechanism causes the rotational axis of the hub assembly to translate along the defined path in response to relative rotation of the first rotating assembly and the third rotating assembly with respect to each other.SELECTED DRAWING: Figure 8

Robot comprising a first axle (100; 200) and a second axle (200; 100), the first axle housing comprising a first transversal axle connected to a rigid structure (2) by a hinge having a first degree of freedom in rotation around a first axis which is vertical and a second degree of freedom in rotation around a second axis which is perpendicular to the first axis and to the first transversal axis, and the axle of the first transversal axle being equipped on either side with a motor (210, 230), each motor having a stator part intended for to be fixed to the first transversal axle and a rotor part to be rotatably mounted to a respective wheel (202, 204) to provide steering and propulsion functions.

The invention relates to the technical field of engineering machinery, and discloses a suspension, a vehicle chassis and engineering machine.The suspension comprises a suspension unit, an upper force transmission system and a lower force transmission system, and the suspension unit is connected with an axle and a vehicle frame; the upper force transmission system comprises at least one connecting rod, one end of the connecting rod is connected to the axle, the other end of the connecting rod extends to an inner cavity of the frame in the vertical direction, the inner cavity of the frame is connected with a rotating cylinder, and the rotating cylinder is arranged on the periphery of the connecting rod in a sleeving mode and is in sliding connection with the connecting rod; the lower force transmission system comprises at least one first thrust rod extending in the longitudinal direction parallel to the horizontal direction, and the two ends of the first thrust rod are connected with the axle and the frame respectively. Therefore, by means of the arrangement mode, the requirement for the width of the frame cavity is remarkably reduced, and the problem that the width of the frame is limited is solved.

An apparatus includes an electric motor including a stator and a rotor; a three-phase inverter electrically coupled to the electric motor; a power source electrically coupled to the three-phase inverter; and a controller communicatively coupled to the three-phase inverter. The controller is programmed to determine at least three measurements of a magnetic flux linkage from the electric motor at different times, express the measurements in Clarke coordinates, determine Clarke coordinates of a center of a circle defined by the Clarke coordinates of the measurements, and determine a position of the rotor relative to the stator based on the Clarke coordinates of the center of the circle.

The invention discloses a coaxial differential steering wheel mechanism and an automatic navigation device. The coaxial differential steering wheel mechanism comprises a rotary supporting assembly. The rotary connecting assembly is rotationally connected to the rotary supporting assembly; the first driving wheel assembly and the second driving wheel assembly are coaxially and rotationally connected to the two opposite sides of the rotary connecting assembly correspondingly; the encoder assembly is arranged on the rotary supporting assembly; the rotary connecting assembly comprises a large-aperture bearing and a roller bearing; an outer ring of the large-aperture bearing is arranged on the rotary supporting assembly, and an inner ring of the large-aperture bearing is fixedly connected with the second driving wheel assembly; the outer ring of the roller bearing is arranged in the inner ring of the large-aperture bearing, and the inner ring of the roller bearing is fixedly connected with the second driving wheel assembly; the supporting plate is fixedly connected with the outer ring of the roller bearing and the first driving wheel assembly. Through cooperation of the rotary supporting assembly, the rotary connecting assembly and the two driving wheel assemblies, the problems that an existing differential steering wheel structure is large in size and large in weight are effectively solved.