22results about "Rigid suspensions" patented technology

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.

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

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.

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

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

The utility model discloses a vehicle frame and axle connection rigid elastic suspension conversion device which comprises an upper frame, a first cross beam is designed on the inner side of the left side of the upper portion of the vehicle frame, a second cross beam is designed on the right side of the upper portion of the vehicle frame, and a third cross beam is designed on the lower portion of the vehicle. A first connecting rod group capable of automatically moving is designed between the first cross beam and the third cross beam, a second connecting rod group is designed between the second cross beam and the third cross beam, steel chains are respectively designed beside the first connecting rod group and the second connecting rod group, and the upper part of the first connecting rod group is connected with the first cross beam through a first upper connecting rod; the tail end of the first upper connecting rod is connected with a first middle connecting rod through a shaft, the tail end of the first middle connecting rod is connected with a first lower connecting rod through a shaft, the tail end of the first lower connecting rod is connected to the third cross beam through a shaft, and the upper portion of the second connecting rod set is connected with the second cross beam through a second upper connecting rod.

The invention relates to a device for transmitting longitudinal forces in a rail vehicle, having a first and a second hydraulic axle lead bearing (ALL1, ALL2), a wheel set (RS1) and a bogie (DGST) of the rail vehicle. Each axle lead bearing (ALL1, ALL2) has a housing element (GEHA, GEHI) and a first and a second chamber (KAM11, KAM12, KAM21, KAM22) filled with a fluid (FLU). Upon a change in the relative position of the housing elements (GEHI, GEHA) to each other, a fluid exchange takes place between the associated chambers of the axle lead bearings (ALL1, ALL2). This fluid exchange is caused by a change in the relative position of the housing elements (GEHI, GEHA) to each other, which in turn is the result of the transmission of longitudinal forces between the wheel set (RS1) and the bogie (DGST) via the axle lead bearings (ALL1, ALL2). The first chamber (KAM11) of the first axle lead bearing (ALL1) is connected to the first chamber (KAM21) of the second axle lead bearing (ALL2) for fluid exchange via a damping element (FDE). At the same time, the second chamber (KAM12) of the first axle lead bearing (ALL1) is directly connected to the second chamber (KAM22) of the second axle lead bearing (ALL2) for fluid exchange.

A support system for a vehicle includes a base and at least a first and a second support arm. Each of the first and the second support arms include a base end pivotally coupled to the base through a respective hinge assembly. Each of the first and the second support arms further include a distal end opposite the base end. The support system also includes a respective wheel assembly coupled to each distal end. Each wheel assembly includes an independently powered and steerable wheel configured to engage a travel surface, a propelling motor configured to drive a respective first support arm between a stowed condition and a deployed condition unaided while the vehicle remains stationary, and a steer actuator configured to change an angle of the wheel with respect to a respective support arm.

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.